Additionally, rename arg-parsing.c to log-args.c so it's clear it's part of the log profiler.
#include <mono/utils/mono-rand.h>
#include <mono/utils/json.h>
#include <mono/utils/mono-threads-coop.h>
-#include <mono/profiler/mono-profiler-aot.h>
+#include <mono/profiler/aot.h>
#include <mono/utils/w32api.h>
#include "aot-compiler.h"
# also uses eglib (e.g. the runtime). Automake doesn't support this
# functionality, so create a separate static version of the library.
-libmono_profiler_aot_la_SOURCES = mono-profiler-aot.c
+libmono_profiler_aot_la_SOURCES = aot.c
libmono_profiler_aot_la_LIBADD = $(libmono_dep) $(GLIB_LIBS) $(LIBICONV)
libmono_profiler_aot_la_LDFLAGS = $(prof_ldflags)
-libmono_profiler_aot_static_la_SOURCES = mono-profiler-aot.c
+libmono_profiler_aot_static_la_SOURCES = aot.c
libmono_profiler_aot_static_la_LDFLAGS = -static
-libmono_profiler_iomap_la_SOURCES = mono-profiler-iomap.c
+libmono_profiler_iomap_la_SOURCES = iomap.c
libmono_profiler_iomap_la_LIBADD = $(libmono_dep) $(GLIB_LIBS) $(LIBICONV)
libmono_profiler_iomap_la_LDFLAGS = $(prof_ldflags)
-libmono_profiler_iomap_static_la_SOURCES = mono-profiler-iomap.c
+libmono_profiler_iomap_static_la_SOURCES = iomap.c
libmono_profiler_iomap_static_la_LDFLAGS = -static
-libmono_profiler_log_la_SOURCES = mono-profiler-log.c arg-parsing.c
+libmono_profiler_log_la_SOURCES = log.c log-args.c
libmono_profiler_log_la_LIBADD = $(libmono_dep) $(GLIB_LIBS) $(Z_LIBS)
libmono_profiler_log_la_LDFLAGS = $(prof_ldflags)
-libmono_profiler_log_static_la_SOURCES = mono-profiler-log.c arg-parsing.c
+libmono_profiler_log_static_la_SOURCES = log.c log-args.c
libmono_profiler_log_static_la_LDFLAGS = -static
if HAVE_VTUNE
-libmono_profiler_vtune_la_SOURCES = mono-profiler-vtune.c
+libmono_profiler_vtune_la_SOURCES = vtune.c
libmono_profiler_vtune_la_CFLAGS = $(VTUNE_CFLAGS)
libmono_profiler_vtune_la_LIBADD = $(VTUNE_LIBS) $(LIBMONO) $(GLIB_LIBS) $(LIBICONV)
libmono_profiler_vtune_la_LDFLAGS = $(prof_ldflags)
-libmono_profiler_vtune_static_la_SOURCES = mono-profiler-vtune.c
+libmono_profiler_vtune_static_la_SOURCES = vtune.c
libmono_profiler_vtune_static_la_LDFLAGS = -static
libmono_profiler_vtune_static_la_CFLAGS = $(VTUNE_CFLAGS)
libmono_profiler_vtune_static_la_LIBADD = $(VTUNE_LIBS)
check-local: $(check_targets)
-EXTRA_DIST=mono-profiler-log.h \
- mono-profiler-aot.h \
+EXTRA_DIST=log.h \
+ aot.h \
$(PLOG_TESTS_SRC) \
ptestrunner.pl \
$(suppression_DATA)
--- /dev/null
+/*
+ * mono-profiler-aot.c: Ahead of Time Compiler Profiler for Mono.
+ *
+ *
+ * Copyright 2008-2009 Novell, Inc (http://www.novell.com)
+ *
+ * This profiler collects profiling information usable by the Mono AOT compiler
+ * to generate better code. It saves the information into files under ~/.mono.
+ * The AOT compiler can load these files during compilation.
+ * Currently, only the order in which methods were compiled is saved,
+ * allowing more efficient function ordering in the AOT files.
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
+ */
+
+#include <config.h>
+
+#include "aot.h"
+
+#include <mono/metadata/profiler.h>
+#include <mono/metadata/tokentype.h>
+#include <mono/metadata/tabledefs.h>
+#include <mono/metadata/debug-helpers.h>
+#include <mono/metadata/assembly.h>
+#include <mono/metadata/class-internals.h>
+#include <mono/utils/mono-os-mutex.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <glib.h>
+#include <sys/stat.h>
+
+#ifdef HOST_WIN32
+#include <direct.h>
+#endif
+
+struct _MonoProfiler {
+ GHashTable *classes;
+ GHashTable *images;
+ GPtrArray *methods;
+ FILE *outfile;
+ int id;
+ char *outfile_name;
+};
+
+static mono_mutex_t mutex;
+static gboolean verbose;
+
+static void
+prof_jit_enter (MonoProfiler *prof, MonoMethod *method)
+{
+}
+
+static void
+prof_jit_leave (MonoProfiler *prof, MonoMethod *method, int result)
+{
+ MonoImage *image = mono_class_get_image (mono_method_get_class (method));
+
+ if (!image->assembly || method->wrapper_type)
+ return;
+
+ mono_os_mutex_lock (&mutex);
+ g_ptr_array_add (prof->methods, method);
+ mono_os_mutex_unlock (&mutex);
+}
+
+static void
+prof_shutdown (MonoProfiler *prof);
+
+static void
+usage (int do_exit)
+{
+ printf ("AOT profiler.\n");
+ printf ("Usage: mono --profile=aot[:OPTION1[,OPTION2...]] program.exe\n");
+ printf ("Options:\n");
+ printf ("\thelp show this usage info\n");
+ printf ("\toutput=FILENAME write the data to file FILENAME (required)\n");
+ printf ("\tverbose print diagnostic info\n");
+ if (do_exit)
+ exit (1);
+}
+
+static const char*
+match_option (const char* p, const char *opt, char **rval)
+{
+ int len = strlen (opt);
+ if (strncmp (p, opt, len) == 0) {
+ if (rval) {
+ if (p [len] == '=' && p [len + 1]) {
+ const char *opt = p + len + 1;
+ const char *end = strchr (opt, ',');
+ char *val;
+ int l;
+ if (end == NULL) {
+ l = strlen (opt);
+ } else {
+ l = end - opt;
+ }
+ val = (char *) g_malloc (l + 1);
+ memcpy (val, opt, l);
+ val [l] = 0;
+ *rval = val;
+ return opt + l;
+ }
+ if (p [len] == 0 || p [len] == ',') {
+ *rval = NULL;
+ return p + len + (p [len] == ',');
+ }
+ usage (1);
+ } else {
+ if (p [len] == 0)
+ return p + len;
+ if (p [len] == ',')
+ return p + len + 1;
+ }
+ }
+ return p;
+}
+
+void
+mono_profiler_startup (const char *desc);
+
+/**
+ * mono_profiler_startup:
+ * the entry point
+ */
+void
+mono_profiler_startup (const char *desc)
+{
+ MonoProfiler *prof;
+ const char *p;
+ const char *opt;
+ char *outfile_name;
+
+ p = desc;
+ if (strncmp (p, "aot", 3))
+ usage (1);
+ p += 3;
+ if (*p == ':')
+ p++;
+ for (; *p; p = opt) {
+ char *val;
+ if (*p == ',') {
+ opt = p + 1;
+ continue;
+ }
+ if ((opt = match_option (p, "help", NULL)) != p) {
+ usage (0);
+ continue;
+ }
+ if ((opt = match_option (p, "verbose", NULL)) != p) {
+ verbose = TRUE;
+ continue;
+ }
+ if ((opt = match_option (p, "output", &val)) != p) {
+ outfile_name = val;
+ continue;
+ }
+ fprintf (stderr, "mono-profiler-aot: Unknown option: '%s'.\n", p);
+ exit (1);
+ }
+
+ if (!outfile_name) {
+ fprintf (stderr, "mono-profiler-aot: The 'output' argument is required.\n");
+ exit (1);
+ }
+
+ prof = g_new0 (MonoProfiler, 1);
+ prof->images = g_hash_table_new (NULL, NULL);
+ prof->classes = g_hash_table_new (NULL, NULL);
+ prof->methods = g_ptr_array_new ();
+ prof->outfile_name = outfile_name;
+
+ mono_os_mutex_init (&mutex);
+
+ mono_profiler_install (prof, prof_shutdown);
+
+ mono_profiler_install_jit_compile (prof_jit_enter, prof_jit_leave);
+
+ mono_profiler_set_events (MONO_PROFILE_JIT_COMPILATION);
+}
+
+static void
+emit_byte (MonoProfiler *prof, guint8 value)
+{
+ fwrite (&value, 1, 1, prof->outfile);
+}
+
+static void
+emit_int32 (MonoProfiler *prof, int value)
+{
+ // FIXME: Endianness
+ fwrite (&value, 4, 1, prof->outfile);
+}
+
+static void
+emit_string (MonoProfiler *prof, const char *str)
+{
+ int len = strlen (str);
+
+ emit_int32 (prof, len);
+ fwrite (str, len, 1, prof->outfile);
+}
+
+static void
+emit_record (MonoProfiler *prof, AotProfRecordType type, int id)
+{
+ emit_byte (prof, type);
+ emit_int32 (prof, id);
+}
+
+static int
+add_image (MonoProfiler *prof, MonoImage *image)
+{
+ int id = GPOINTER_TO_INT (g_hash_table_lookup (prof->images, image));
+ if (id)
+ return id - 1;
+
+ id = prof->id ++;
+ emit_record (prof, AOTPROF_RECORD_IMAGE, id);
+ emit_string (prof, image->assembly->aname.name);
+ emit_string (prof, image->guid);
+ g_hash_table_insert (prof->images, image, GINT_TO_POINTER (id + 1));
+ return id;
+}
+
+static int
+add_class (MonoProfiler *prof, MonoClass *klass);
+
+static int
+add_type (MonoProfiler *prof, MonoType *type)
+{
+ switch (type->type) {
+#if 0
+ case MONO_TYPE_SZARRAY: {
+ int eid = add_type (prof, &type->data.klass->byval_arg);
+ if (eid == -1)
+ return -1;
+ int id = prof->id ++;
+ emit_record (prof, AOTPROF_RECORD_TYPE, id);
+ emit_byte (prof, MONO_TYPE_SZARRAY);
+ emit_int32 (prof, id);
+ return id;
+ }
+#endif
+ case MONO_TYPE_BOOLEAN:
+ case MONO_TYPE_CHAR:
+ case MONO_TYPE_I1:
+ case MONO_TYPE_U1:
+ case MONO_TYPE_I2:
+ case MONO_TYPE_U2:
+ case MONO_TYPE_I4:
+ case MONO_TYPE_U4:
+ case MONO_TYPE_I8:
+ case MONO_TYPE_U8:
+ case MONO_TYPE_R4:
+ case MONO_TYPE_R8:
+ case MONO_TYPE_I:
+ case MONO_TYPE_U:
+ case MONO_TYPE_OBJECT:
+ case MONO_TYPE_STRING:
+ case MONO_TYPE_CLASS:
+ case MONO_TYPE_VALUETYPE:
+ case MONO_TYPE_GENERICINST:
+ return add_class (prof, mono_class_from_mono_type (type));
+ default:
+ return -1;
+ }
+}
+
+static int
+add_ginst (MonoProfiler *prof, MonoGenericInst *inst)
+{
+ int i, id;
+ int *ids;
+
+ // FIXME: Cache
+ ids = g_malloc0 (inst->type_argc * sizeof (int));
+ for (i = 0; i < inst->type_argc; ++i) {
+ MonoType *t = inst->type_argv [i];
+ ids [i] = add_type (prof, t);
+ if (ids [i] == -1) {
+ g_free (ids);
+ return -1;
+ }
+ }
+ id = prof->id ++;
+ emit_record (prof, AOTPROF_RECORD_GINST, id);
+ emit_int32 (prof, inst->type_argc);
+ for (i = 0; i < inst->type_argc; ++i)
+ emit_int32 (prof, ids [i]);
+ g_free (ids);
+
+ return id;
+}
+
+static int
+add_class (MonoProfiler *prof, MonoClass *klass)
+{
+ int id, inst_id = -1, image_id;
+ char *name;
+
+ id = GPOINTER_TO_INT (g_hash_table_lookup (prof->classes, klass));
+ if (id)
+ return id - 1;
+
+ image_id = add_image (prof, klass->image);
+
+ if (mono_class_is_ginst (klass)) {
+ MonoGenericContext *ctx = mono_class_get_context (klass);
+ inst_id = add_ginst (prof, ctx->class_inst);
+ if (inst_id == -1)
+ return -1;
+ }
+
+ if (klass->nested_in)
+ name = g_strdup_printf ("%s.%s/%s", klass->nested_in->name_space, klass->nested_in->name, klass->name);
+ else
+ name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
+
+ id = prof->id ++;
+ emit_record (prof, AOTPROF_RECORD_TYPE, id);
+ emit_byte (prof, MONO_TYPE_CLASS);
+ emit_int32 (prof, image_id);
+ emit_int32 (prof, inst_id);
+ emit_string (prof, name);
+ g_free (name);
+ g_hash_table_insert (prof->classes, klass, GINT_TO_POINTER (id + 1));
+ return id;
+}
+
+static void
+add_method (MonoProfiler *prof, MonoMethod *m)
+{
+ MonoError error;
+ MonoMethodSignature *sig;
+ char *s;
+
+ sig = mono_method_signature_checked (m, &error);
+ g_assert (mono_error_ok (&error));
+
+ int class_id = add_class (prof, m->klass);
+ if (class_id == -1)
+ return;
+ int inst_id = -1;
+
+ if (m->is_inflated) {
+ MonoGenericContext *ctx = mono_method_get_context (m);
+ if (ctx->method_inst)
+ inst_id = add_ginst (prof, ctx->method_inst);
+ }
+ int id = prof->id ++;
+ emit_record (prof, AOTPROF_RECORD_METHOD, id);
+ emit_int32 (prof, class_id);
+ emit_int32 (prof, inst_id);
+ emit_int32 (prof, sig->param_count);
+ emit_string (prof, m->name);
+ s = mono_signature_full_name (sig);
+ emit_string (prof, s);
+ g_free (s);
+ if (verbose)
+ printf ("%s %d\n", mono_method_full_name (m, 1), id);
+}
+
+/* called at the end of the program */
+static void
+prof_shutdown (MonoProfiler *prof)
+{
+ FILE *outfile;
+ int mindex;
+ char magic [32];
+
+ printf ("Creating output file: %s\n", prof->outfile_name);
+
+ if (prof->outfile_name [0] == '#') {
+ int fd = strtol (prof->outfile_name + 1, NULL, 10);
+ outfile = fdopen (fd, "a");
+ } else {
+ outfile = fopen (prof->outfile_name, "w+");
+ }
+ if (!outfile) {
+ fprintf (stderr, "Unable to create output file '%s': %s.\n", prof->outfile_name, strerror (errno));
+ return;
+ }
+ prof->outfile = outfile;
+
+ gint32 version = (AOT_PROFILER_MAJOR_VERSION << 16) | AOT_PROFILER_MINOR_VERSION;
+ sprintf (magic, AOT_PROFILER_MAGIC);
+ fwrite (magic, strlen (magic), 1, outfile);
+ emit_int32 (prof, version);
+
+ GHashTable *all_methods = g_hash_table_new (NULL, NULL);
+ for (mindex = 0; mindex < prof->methods->len; ++mindex) {
+ MonoMethod *m = (MonoMethod*)g_ptr_array_index (prof->methods, mindex);
+
+ if (!mono_method_get_token (m))
+ continue;
+
+ if (g_hash_table_lookup (all_methods, m))
+ continue;
+ g_hash_table_insert (all_methods, m, m);
+
+ add_method (prof, m);
+ }
+ emit_record (prof, AOTPROF_RECORD_NONE, 0);
+
+ fclose (outfile);
+
+ g_hash_table_destroy (all_methods);
+ g_hash_table_destroy (prof->classes);
+ g_hash_table_destroy (prof->images);
+ g_ptr_array_free (prof->methods, TRUE);
+ g_free (prof->outfile_name);
+}
--- /dev/null
+#ifndef __MONO_PROFILER_AOT_H__
+#define __MONO_PROFILER_AOT_H__
+
+#include <config.h>
+
+/*
+ * File format:
+ * - magic
+ * - major/minor version as an int, i.e. 0x00010001
+ * - sequence of records terminated by a record with type TYPE_NONE
+ * Record format:
+ * - 1 byte record type (AotProfRecordType)
+ * - 1 int record id
+ * - record specific data
+ * Encoding rules:
+ * - int - 4 bytes little endian
+ * - string - int length followed by data
+ */
+
+typedef enum {
+ AOTPROF_RECORD_NONE,
+ AOTPROF_RECORD_IMAGE,
+ AOTPROF_RECORD_TYPE,
+ AOTPROF_RECORD_GINST,
+ AOTPROF_RECORD_METHOD
+} AotProfRecordType;
+
+#define AOT_PROFILER_MAGIC "AOTPROFILE"
+
+#define AOT_PROFILER_MAJOR_VERSION 1
+#define AOT_PROFILER_MINOR_VERSION 0
+
+#endif /* __MONO_PROFILER_AOT_H__ */
+++ /dev/null
-#include <config.h>
-
-#include "mono-profiler-log.h"
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#ifdef HAVE_SCHED_GETAFFINITY
-#include <sched.h>
-
-# ifndef GLIBC_HAS_CPU_COUNT
-static int
-CPU_COUNT(cpu_set_t *set)
-{
- int i, count = 0;
-
- for (int i = 0; i < CPU_SETSIZE; i++)
- if (CPU_ISSET(i, set))
- count++;
- return count;
-}
-# endif
-#endif
-
-typedef struct {
- const char *event_name;
- const int mask;
-} NameAndMask;
-
-static NameAndMask event_list[] = {
- { "domain", PROFLOG_DOMAIN_EVENTS },
- { "assembly", PROFLOG_ASSEMBLY_EVENTS },
- { "module", PROFLOG_MODULE_EVENTS },
- { "class", PROFLOG_CLASS_EVENTS },
- { "jit", PROFLOG_JIT_COMPILATION_EVENTS },
- { "exception", PROFLOG_EXCEPTION_EVENTS },
- { "gcalloc", PROFLOG_ALLOCATION_EVENTS },
- { "gc", PROFLOG_GC_EVENTS },
- { "thread", PROFLOG_THREAD_EVENTS },
- { "calls", PROFLOG_CALL_EVENTS },
- //{ "inscov", PROFLOG_INS_COVERAGE_EVENTS }, //this is a profiler API event, but there's no actual event for us to emit here
- //{ "sampling", PROFLOG_SAMPLING_EVENTS }, //it makes no sense to enable/disable this event by itself
- { "monitor", PROFLOG_MONITOR_EVENTS },
- { "gcmove", PROFLOG_GC_MOVES_EVENTS },
- { "gcroot", PROFLOG_GC_ROOT_EVENTS },
- { "context", PROFLOG_CONTEXT_EVENTS },
- { "finalization", PROFLOG_FINALIZATION_EVENTS },
- { "counter", PROFLOG_COUNTER_EVENTS },
- { "gchandle", PROFLOG_GC_HANDLE_EVENTS },
-
- { "typesystem", PROFLOG_TYPELOADING_ALIAS },
- { "coverage", PROFLOG_CODECOV_ALIAS },
- //{ "sample", PROFLOG_PERF_SAMPLING_ALIAS }, //takes args, explicitly handles
- { "alloc", PROFLOG_GC_ALLOC_ALIAS },
- //{ "heapshot", PROFLOG_HEAPSHOT_ALIAS }, //takes args, explicitly handled
- { "legacy", PROFLOG_LEGACY_ALIAS },
-};
-
-static void usage (void);
-static void set_hsmode (ProfilerConfig *config, const char* val);
-static void set_sample_freq (ProfilerConfig *config, const char *val);
-static int mono_cpu_count (void);
-
-
-static gboolean
-match_option (const char *arg, const char *opt_name, const char **rval)
-{
- if (rval) {
- const char *end = strchr (arg, '=');
-
- *rval = NULL;
- if (!end)
- return !strcmp (arg, opt_name);
-
- if (strncmp (arg, opt_name, strlen (opt_name)) || (end - arg) > strlen (opt_name) + 1)
- return FALSE;
- *rval = end + 1;
- return TRUE;
- } else {
- //FIXME how should we handle passing a value to an arg that doesn't expect it?
- return !strcmp (arg, opt_name);
- }
-}
-
-static void
-parse_arg (const char *arg, ProfilerConfig *config)
-{
- const char *val;
-
- if (match_option (arg, "help", NULL)) {
- usage ();
- } else if (match_option (arg, "report", NULL)) {
- config->do_report = TRUE;
- } else if (match_option (arg, "debug", NULL)) {
- config->do_debug = TRUE;
- } else if (match_option (arg, "debug-coverage", NULL)) {
- config->debug_coverage = TRUE;
- } else if (match_option (arg, "sampling-real", NULL)) {
- config->sampling_mode = MONO_PROFILER_STAT_MODE_REAL;
- } else if (match_option (arg, "sampling-process", NULL)) {
- config->sampling_mode = MONO_PROFILER_STAT_MODE_PROCESS;
- } else if (match_option (arg, "heapshot", &val)) {
- config->enable_mask |= PROFLOG_HEAPSHOT_ALIAS;
- set_hsmode (config, val);
- } else if (match_option (arg, "sample", &val)) {
- config->enable_mask |= PROFLOG_PERF_SAMPLING_ALIAS;
- set_sample_freq (config, val);
- } else if (match_option (arg, "zip", NULL)) {
- config->use_zip = TRUE;
- } else if (match_option (arg, "output", &val)) {
- config->output_filename = g_strdup (val);
- } else if (match_option (arg, "port", &val)) {
- char *end;
- config->command_port = strtoul (val, &end, 10);
- } else if (match_option (arg, "maxframes", &val)) {
- char *end;
- int num_frames = strtoul (val, &end, 10);
- if (num_frames > MAX_FRAMES)
- num_frames = MAX_FRAMES;
- config->notraces = num_frames == 0;
- config->num_frames = num_frames;
- } else if (match_option (arg, "maxsamples", &val)) {
- char *end;
- int max_samples = strtoul (val, &end, 10);
- if (max_samples)
- config->max_allocated_sample_hits = max_samples;
- } else if (match_option (arg, "calldepth", &val)) {
- char *end;
- config->max_call_depth = strtoul (val, &end, 10);
- } else if (match_option (arg, "covfilter-file", &val)) {
- if (config->cov_filter_files == NULL)
- config->cov_filter_files = g_ptr_array_new ();
- g_ptr_array_add (config->cov_filter_files, g_strdup (val));
- } else if (match_option (arg, "onlycoverage", NULL)) {
- config->only_coverage = TRUE;
- } else {
- int i;
-
- for (i = 0; i < G_N_ELEMENTS (event_list); ++i){
- if (!strcmp (arg, event_list [i].event_name)) {
- config->enable_mask |= event_list [i].mask;
- break;
- } else if (arg [0] == 'n' && arg [1] == 'o' && !strcmp (arg + 2, event_list [i].event_name)) {
- config->disable_mask |= event_list [i].mask;
- }
- }
- if (i == G_N_ELEMENTS (event_list)) {
- printf ("Could not parse argument %s\n", arg);
- }
- }
-}
-
-static void
-load_args_from_env_or_default (ProfilerConfig *config)
-{
- //XXX change this to header constants
-
- config->max_allocated_sample_hits = mono_cpu_count () * 1000;
- config->sample_freq = 100;
- config->max_call_depth = 100;
- config->num_frames = MAX_FRAMES;
-}
-
-
-void
-proflog_parse_args (ProfilerConfig *config, const char *desc)
-{
- const char *p;
- gboolean in_quotes = FALSE;
- char quote_char = '\0';
- char *buffer = malloc (strlen (desc));
- int buffer_pos = 0;
-
- load_args_from_env_or_default (config);
-
- for (p = desc; *p; p++){
- switch (*p){
- case ',':
- if (!in_quotes) {
- if (buffer_pos != 0){
- buffer [buffer_pos] = 0;
- parse_arg (buffer, config);
- buffer_pos = 0;
- }
- } else {
- buffer [buffer_pos++] = *p;
- }
- break;
-
- case '\\':
- if (p [1]) {
- buffer [buffer_pos++] = p[1];
- p++;
- }
- break;
- case '\'':
- case '"':
- if (in_quotes) {
- if (quote_char == *p)
- in_quotes = FALSE;
- else
- buffer [buffer_pos++] = *p;
- } else {
- in_quotes = TRUE;
- quote_char = *p;
- }
- break;
- default:
- buffer [buffer_pos++] = *p;
- break;
- }
- }
-
- if (buffer_pos != 0) {
- buffer [buffer_pos] = 0;
- parse_arg (buffer, config);
- }
-
- g_free (buffer);
-
- //Compure config effective mask
- config->effective_mask = config->enable_mask & ~config->disable_mask;
-}
-
-static void
-set_hsmode (ProfilerConfig *config, const char* val)
-{
- char *end;
- unsigned int count;
- if (!val)
- return;
- if (strcmp (val, "ondemand") == 0) {
- config->hs_mode_ondemand = TRUE;
- return;
- }
-
- count = strtoul (val, &end, 10);
- if (val == end) {
- usage ();
- return;
- }
-
- if (strcmp (end, "ms") == 0)
- config->hs_mode_ms = count;
- else if (strcmp (end, "gc") == 0)
- config->hs_mode_gc = count;
- else
- usage ();
-}
-
-/*
-Sampling frequency allows for one undocumented, hidden and ignored argument. The sampling kind.
-Back in the day when this was done using perf, we could specify one of: cycles,instr,cacherefs,cachemiss,branches,branchmiss
-With us moving ot userland sampling, those options are now meaningless.
-*/
-static void
-set_sample_freq (ProfilerConfig *config, const char *val)
-{
- if (!val)
- return;
-
- const char *p = val;
-
- // Is it only the frequency (new option style)?
- if (isdigit (*p))
- goto parse;
-
- // Skip the sample type for backwards compatibility.
- while (isalpha (*p))
- p++;
-
- // Skip the forward slash only if we got a sample type.
- if (p != val && *p == '/') {
- p++;
-
- char *end;
-
- parse:
- config->sample_freq = strtoul (p, &end, 10);
-
- if (p == end) {
- usage ();
- return;
- }
-
- p = end;
- }
-
- if (*p)
- usage ();
-}
-
-static void
-usage (void)
-{
- printf ("Log profiler version %d.%d (format: %d)\n", LOG_VERSION_MAJOR, LOG_VERSION_MINOR, LOG_DATA_VERSION);
- printf ("Usage: mono --profile=log[:OPTION1[,OPTION2...]] program.exe\n");
- printf ("Options:\n");
- printf ("\thelp show this usage info\n");
- printf ("\t[no]'event' enable/disable a profiling event. Valid values: domain, assembly, module, class, jit, exception, gcalloc, gc, thread, monitor, gcmove, gcroot, context, finalization, counter, gchandle\n");
- printf ("\t[no]typesystem enable/disable typesystem related events such as class and assembly loading\n");
- printf ("\t[no]alloc enable/disable recording allocation info\n");
- printf ("\t[no]calls enable/disable recording enter/leave method events\n");
- printf ("\t[no]legacy enable/disable pre mono 5.4 default profiler events\n");
- printf ("\tsample[=frequency] enable/disable statistical sampling of threads (frequency in Hz, 100 by default)\n");
- printf ("\theapshot[=MODE] record heap shot info (by default at each major collection)\n");
- printf ("\t MODE: every XXms milliseconds, every YYgc collections, ondemand\n");
- printf ("\t[no]coverage enable collection of code coverage data\n");
- printf ("\tcovfilter=ASSEMBLY add an assembly to the code coverage filters\n");
- printf ("\t add a + to include the assembly or a - to exclude it\n");
- printf ("\t covfilter=-mscorlib\n");
- printf ("\tcovfilter-file=FILE use FILE to generate the list of assemblies to be filtered\n");
- printf ("\tmaxframes=NUM collect up to NUM stack frames\n");
- printf ("\tcalldepth=NUM ignore method events for call chain depth bigger than NUM\n");
- printf ("\toutput=FILENAME write the data to file FILENAME (The file is always overwriten)\n");
- printf ("\toutput=|PROGRAM write the data to the stdin of PROGRAM\n");
- printf ("\t %%t is subtituted with date and time, %%p with the pid\n");
- printf ("\treport create a report instead of writing the raw data to a file\n");
- printf ("\tzip compress the output data\n");
- printf ("\tport=PORTNUM use PORTNUM for the listening command server\n");
-}
-
-static int
-mono_cpu_count (void)
-{
-#ifdef PLATFORM_ANDROID
- /* Android tries really hard to save power by powering off CPUs on SMP phones which
- * means the normal way to query cpu count returns a wrong value with userspace API.
- * Instead we use /sys entries to query the actual hardware CPU count.
- */
- int count = 0;
- char buffer[8] = {'\0'};
- int present = open ("/sys/devices/system/cpu/present", O_RDONLY);
- /* Format of the /sys entry is a cpulist of indexes which in the case
- * of present is always of the form "0-(n-1)" when there is more than
- * 1 core, n being the number of CPU cores in the system. Otherwise
- * the value is simply 0
- */
- if (present != -1 && read (present, (char*)buffer, sizeof (buffer)) > 3)
- count = strtol (((char*)buffer) + 2, NULL, 10);
- if (present != -1)
- close (present);
- if (count > 0)
- return count + 1;
-#endif
-
-#if defined(HOST_ARM) || defined (HOST_ARM64)
-
- /* ARM platforms tries really hard to save power by powering off CPUs on SMP phones which
- * means the normal way to query cpu count returns a wrong value with userspace API. */
-
-#ifdef _SC_NPROCESSORS_CONF
- {
- int count = sysconf (_SC_NPROCESSORS_CONF);
- if (count > 0)
- return count;
- }
-#endif
-
-#else
-
-#ifdef HAVE_SCHED_GETAFFINITY
- {
- cpu_set_t set;
- if (sched_getaffinity (getpid (), sizeof (set), &set) == 0)
- return CPU_COUNT (&set);
- }
-#endif
-#ifdef _SC_NPROCESSORS_ONLN
- {
- int count = sysconf (_SC_NPROCESSORS_ONLN);
- if (count > 0)
- return count;
- }
-#endif
-
-#endif /* defined(HOST_ARM) || defined (HOST_ARM64) */
-
-#ifdef USE_SYSCTL
- {
- int count;
- int mib [2];
- size_t len = sizeof (int);
- mib [0] = CTL_HW;
- mib [1] = HW_NCPU;
- if (sysctl (mib, 2, &count, &len, NULL, 0) == 0)
- return count;
- }
-#endif
-#ifdef HOST_WIN32
- {
- SYSTEM_INFO info;
- GetSystemInfo (&info);
- return info.dwNumberOfProcessors;
- }
-#endif
-
- static gboolean warned;
-
- if (!warned) {
- g_warning ("Don't know how to determine CPU count on this platform; assuming 1");
- warned = TRUE;
- }
-
- return 1;
-}
\ No newline at end of file
--- /dev/null
+/*
+ * mono-profiler-iomap.c: IOMAP string profiler for Mono.
+ *
+ * Authors:
+ * Marek Habersack <mhabersack@novell.com>
+ *
+ * Copyright (c) 2009 Novell, Inc (http://novell.com)
+ *
+ * Note: this profiler is completely unsafe wrt handling managed objects,
+ * don't use and don't copy code from here.
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
+ */
+#include "config.h"
+
+#include <string.h>
+#include <mono/utils/mono-io-portability.h>
+#include <mono/metadata/metadata.h>
+#include <mono/metadata/metadata-internals.h>
+#include <mono/metadata/class.h>
+#include <mono/metadata/class-internals.h>
+#include <mono/metadata/object-internals.h>
+#include <mono/metadata/image.h>
+#include <mono/metadata/mono-debug.h>
+#include <mono/metadata/debug-helpers.h>
+#include <mono/metadata/threads.h>
+#include <mono/metadata/profiler.h>
+#include <mono/metadata/loader.h>
+#include <mono/utils/mono-os-mutex.h>
+
+#define LOCATION_INDENT " "
+#define BACKTRACE_SIZE 64
+
+typedef struct _MonoStackBacktraceInfo
+{
+ MonoMethod *method;
+ gint native_offset;
+} MonoStackBacktraceInfo;
+
+typedef struct
+{
+ guint32 count;
+ gchar *requestedName;
+ gchar *actualName;
+} MismatchedFilesStats;
+
+typedef struct _SavedString
+{
+ MonoString *string;
+ MonoDomain *domain;
+ void *stack [BACKTRACE_SIZE];
+ gint stack_entries;
+ struct _SavedString *next;
+} SavedString;
+
+typedef struct _SavedStringFindInfo
+{
+ guint32 hash;
+ size_t len;
+} SavedStringFindInfo;
+
+typedef struct _StringLocation
+{
+ gchar *hint;
+ struct _StringLocation *next;
+} StringLocation;
+
+struct _MonoProfiler
+{
+ GHashTable *mismatched_files_hash;
+ GHashTable *saved_strings_hash;
+ GHashTable *string_locations_hash;
+ gboolean may_have_locations;
+};
+
+typedef struct _StackWalkData
+{
+ MonoProfiler *prof;
+ void **stack;
+ int stack_size;
+ int frame_count;
+} StackWalkData;
+
+static mono_mutex_t mismatched_files_section;
+static gboolean runtime_initialized = FALSE;
+
+static inline void append_report (GString **report, const gchar *format, ...);
+static inline void print_report (const gchar *format, ...);
+static inline guint32 do_calc_string_hash (guint32 hash, const gchar *str);
+static inline guint32 calc_strings_hash (const gchar *str1, const gchar *str2, guint32 *str1hash);
+static void print_mismatched_stats (MonoProfiler *prof);
+static inline gchar *build_hint (SavedString *head);
+static inline gchar *build_hint_from_stack (MonoDomain *domain, void **stack, gint stack_entries);
+static inline void store_string_location (MonoProfiler *prof, const gchar *string, guint32 hash, size_t len);
+static void mono_portability_remember_string (MonoProfiler *prof, MonoDomain *domain, MonoString *str);
+void mono_profiler_startup (const char *desc);
+
+static void mismatched_stats_foreach_func (gpointer key, gpointer value, gpointer user_data)
+{
+ MismatchedFilesStats *stats = (MismatchedFilesStats*)value;
+ StringLocation *location;
+ MonoProfiler *prof = (MonoProfiler*)user_data;
+ guint32 hash;
+ gboolean bannerShown = FALSE;
+
+ hash = do_calc_string_hash (0, stats->requestedName);
+ fprintf (stdout,
+ " Count: %u\n"
+ "Requested: %s\n"
+ " Actual: %s\n",
+ stats->count, stats->requestedName, stats->actualName);
+
+ if (!prof->may_have_locations) {
+ fprintf (stdout, "\n");
+ return;
+ }
+
+ location = (StringLocation *)g_hash_table_lookup (prof->string_locations_hash, &hash);
+ while (location) {
+ if (location->hint && strlen (location->hint) > 0) {
+ if (!bannerShown) {
+ fprintf (stdout, "Locations:\n");
+ bannerShown = TRUE;
+ }
+ fprintf (stdout, "%s", location->hint);
+ }
+ location = location->next;
+ if (location)
+ fprintf (stdout, LOCATION_INDENT "--\n");
+ }
+
+ fprintf (stdout, "\n");
+}
+
+static void print_mismatched_stats (MonoProfiler *prof)
+{
+ if (!prof->mismatched_files_hash || g_hash_table_size (prof->mismatched_files_hash) == 0)
+ return;
+
+ prof->may_have_locations = g_hash_table_size (prof->string_locations_hash) > 0;
+
+ fprintf (stdout, "\n-=-=-=-=-=-=-= MONO_IOMAP Stats -=-=-=-=-=-=-=\n");
+ g_hash_table_foreach (prof->mismatched_files_hash, mismatched_stats_foreach_func, (gpointer)prof);
+ fflush (stdout);
+}
+
+static guint mismatched_files_guint32_hash (gconstpointer key)
+{
+ if (!key)
+ return 0;
+
+ return *((guint32*)key);
+}
+
+static gboolean mismatched_files_guint32_equal (gconstpointer key1, gconstpointer key2)
+{
+ if (!key1 || !key2)
+ return FALSE;
+
+ return (gboolean)(*((guint32*)key1) == *((guint32*)key2));
+}
+
+static inline guint32 do_calc_string_hash (guint32 hash, const gchar *str)
+{
+ guint32 ret = hash;
+ gchar *cc = (gchar*)str;
+ gchar *end = (gchar*)(str + strlen (str) - 1);
+
+ for (; cc < end; cc += 2) {
+ ret = (ret << 5) - ret + *cc;
+ ret = (ret << 5) - ret + cc [1];
+ }
+ end++;
+ if (cc < end)
+ ret = (ret << 5) - ret + *cc;
+
+ return ret;
+}
+
+static inline guint32 calc_strings_hash (const gchar *str1, const gchar *str2, guint32 *str1hash)
+{
+ guint32 hash = do_calc_string_hash (0, str1);
+ if (str1hash)
+ *str1hash = hash;
+ return do_calc_string_hash (hash, str2);
+}
+
+static inline void print_report (const gchar *format, ...)
+{
+ MonoError error;
+ MonoClass *klass;
+ MonoProperty *prop;
+ MonoString *str;
+ char *stack_trace;
+ va_list ap;
+
+ fprintf (stdout, "-=-=-=-=-=-=- MONO_IOMAP REPORT -=-=-=-=-=-=-\n");
+ va_start (ap, format);
+ vfprintf (stdout, format, ap);
+ fprintf (stdout, "\n");
+ va_end (ap);
+ klass = mono_class_load_from_name (mono_get_corlib (), "System", "Environment");
+ mono_class_init (klass);
+ prop = mono_class_get_property_from_name (klass, "StackTrace");
+ str = (MonoString*)mono_property_get_value_checked (prop, NULL, NULL, &error);
+ mono_error_assert_ok (&error);
+ stack_trace = mono_string_to_utf8_checked (str, &error);
+ mono_error_assert_ok (&error);
+
+ fprintf (stdout, "-= Stack Trace =-\n%s\n\n", stack_trace);
+ g_free (stack_trace);
+ fflush (stdout);
+}
+
+static inline void append_report (GString **report, const gchar *format, ...)
+{
+ va_list ap;
+ if (!*report)
+ *report = g_string_new ("");
+
+ va_start (ap, format);
+ g_string_append_vprintf (*report, format, ap);
+ va_end (ap);
+}
+
+static gboolean saved_strings_find_func (gpointer key, gpointer value, gpointer user_data)
+{
+ MonoError error;
+ SavedStringFindInfo *info = (SavedStringFindInfo*)user_data;
+ SavedString *saved = (SavedString*)value;
+ gchar *utf_str;
+ guint32 hash;
+
+ if (!info || !saved || mono_string_length (saved->string) != info->len)
+ return FALSE;
+
+ utf_str = mono_string_to_utf8_checked (saved->string, &error);
+ mono_error_assert_ok (&error);
+ hash = do_calc_string_hash (0, utf_str);
+ g_free (utf_str);
+
+ if (hash != info->hash)
+ return FALSE;
+
+ return TRUE;
+}
+
+static inline void store_string_location (MonoProfiler *prof, const gchar *string, guint32 hash, size_t len)
+{
+ StringLocation *location = (StringLocation *)g_hash_table_lookup (prof->string_locations_hash, &hash);
+ SavedString *saved;
+ SavedStringFindInfo info;
+ guint32 *hashptr;
+
+ if (location)
+ return;
+
+ info.hash = hash;
+ info.len = len;
+
+ /* Expensive but unavoidable... */
+ saved = (SavedString*)g_hash_table_find (prof->saved_strings_hash, saved_strings_find_func, &info);
+ hashptr = (guint32*)g_malloc (sizeof (guint32));
+ *hashptr = hash;
+ location = (StringLocation*)g_malloc0 (sizeof (location));
+
+ g_hash_table_insert (prof->string_locations_hash, hashptr, location);
+ if (!saved)
+ return;
+
+ g_hash_table_remove (prof->saved_strings_hash, saved->string);
+ location->hint = build_hint (saved);
+}
+
+static gboolean ignore_frame (MonoMethod *method)
+{
+ MonoClass *klass = method->klass;
+
+ if (method->wrapper_type != MONO_WRAPPER_NONE)
+ return TRUE;
+
+ /* Now ignore the assemblies we know shouldn't contain mixed-case names (only the most frequent cases) */
+ if (klass->image ) {
+ if (strcmp (klass->image->assembly_name, "mscorlib") == 0)
+ return TRUE;
+ else if (strcmp (klass->image->assembly_name, "System") == 0)
+ return TRUE;
+ else if (strncmp (klass->image->assembly_name, "Mono.", 5) == 0)
+ return TRUE;
+ else if (strncmp (klass->image->assembly_name, "System.", 7) == 0)
+ return TRUE;
+ else if (strcmp (klass->image->assembly_name, "PEAPI") == 0)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static inline gchar *build_hint_from_stack (MonoDomain *domain, void **stack, gint stack_entries)
+{
+ gchar *hint;
+ MonoMethod *method, *selectedMethod;
+ MonoAssembly *assembly;
+ MonoImage *image;
+ MonoDebugSourceLocation *location;
+ MonoStackBacktraceInfo *info;
+ gboolean use_full_trace;
+ char *methodName;
+ gint i, native_offset, firstAvailable;
+
+ selectedMethod = NULL;
+ firstAvailable = -1;
+ use_full_trace = FALSE;
+ native_offset = -1;
+ for (i = 0; i < stack_entries; i++) {
+ info = (MonoStackBacktraceInfo*) stack [i];
+ method = info ? info->method : NULL;
+
+ if (!method || method->wrapper_type != MONO_WRAPPER_NONE)
+ continue;
+
+ if (firstAvailable == -1)
+ firstAvailable = i;
+
+ image = method->klass->image;
+ assembly = image->assembly;
+
+ if ((assembly && assembly->in_gac) || ignore_frame (method))
+ continue;
+ selectedMethod = method;
+ native_offset = info->native_offset;
+ break;
+ }
+
+ if (!selectedMethod) {
+ /* All the frames were from assemblies installed in GAC. Find first frame that is
+ * not in the ignore list */
+ for (i = 0; i < stack_entries; i++) {
+ info = (MonoStackBacktraceInfo*) stack [i];
+ method = info ? info->method : NULL;
+
+ if (!method || ignore_frame (method))
+ continue;
+ selectedMethod = method;
+ native_offset = info->native_offset;
+ break;
+ }
+
+ if (!selectedMethod)
+ use_full_trace = TRUE;
+ }
+
+ hint = NULL;
+ if (use_full_trace) {
+ GString *trace = g_string_new ("Full trace:\n");
+ for (i = firstAvailable; i < stack_entries; i++) {
+ info = (MonoStackBacktraceInfo*) stack [i];
+ method = info ? info->method : NULL;
+ if (!method || method->wrapper_type != MONO_WRAPPER_NONE)
+ continue;
+
+ location = mono_debug_lookup_source_location (method, info->native_offset, domain);
+ methodName = mono_method_full_name (method, TRUE);
+
+ if (location) {
+ append_report (&trace, LOCATION_INDENT "%s in %s:%u\n", methodName, location->source_file, location->row);
+ mono_debug_free_source_location (location);
+ } else
+ append_report (&trace, LOCATION_INDENT "%s\n", methodName);
+ g_free (methodName);
+ }
+
+ if (trace) {
+ if (trace->len)
+ hint = g_string_free (trace, FALSE);
+ else
+ g_string_free (trace, TRUE);
+ }
+ } else {
+ location = mono_debug_lookup_source_location (selectedMethod, native_offset, domain);
+ methodName = mono_method_full_name (selectedMethod, TRUE);
+
+ if (location) {
+ hint = g_strdup_printf (LOCATION_INDENT "%s in %s:%u\n", methodName, location->source_file, location->row);
+ mono_debug_free_source_location (location);
+ } else
+ hint = g_strdup_printf (LOCATION_INDENT "%s\n", methodName);
+ g_free (methodName);
+ }
+
+ return hint;
+}
+
+static inline gchar *build_hint (SavedString *head)
+{
+ SavedString *current;
+ gchar *tmp;
+ GString *hint = NULL;
+
+ current = head;
+ while (current) {
+ tmp = build_hint_from_stack (current->domain, current->stack, current->stack_entries);
+ current = current->next;
+ if (!tmp)
+ continue;
+
+ append_report (&hint, tmp);
+ }
+
+ if (hint) {
+ if (hint->len)
+ return g_string_free (hint, FALSE);
+ else {
+ g_string_free (hint, FALSE);
+ return NULL;
+ }
+ }
+
+ return NULL;
+}
+
+static gboolean stack_walk_func (MonoMethod *method, gint32 native_offset, gint32 il_offset, gboolean managed, gpointer data)
+{
+ StackWalkData *swdata = (StackWalkData*)data;
+ MonoStackBacktraceInfo *info;
+
+ if (swdata->frame_count >= swdata->stack_size)
+ return TRUE;
+
+ info = (MonoStackBacktraceInfo*)g_malloc (sizeof (*info));
+ info->method = method;
+ info->native_offset = native_offset;
+
+ swdata->stack [swdata->frame_count++] = info;
+ return FALSE;
+}
+
+static inline int mono_stack_backtrace (MonoProfiler *prof, MonoDomain *domain, void **stack, int size)
+{
+ StackWalkData data;
+
+ data.prof = prof;
+ data.stack = stack;
+ data.stack_size = size;
+ data.frame_count = 0;
+
+ mono_stack_walk_no_il (stack_walk_func, (gpointer)&data);
+
+ return data.frame_count;
+}
+
+static void mono_portability_remember_string (MonoProfiler *prof, MonoDomain *domain, MonoString *str)
+{
+ SavedString *head, *entry;
+
+ if (!str || !domain || !runtime_initialized)
+ return;
+
+ entry = (SavedString*)g_malloc0 (sizeof (SavedString));
+ entry->string = str;
+ entry->domain = domain;
+ entry->stack_entries = mono_stack_backtrace (prof, domain, entry->stack, BACKTRACE_SIZE);
+ if (entry->stack_entries == 0) {
+ g_free (entry);
+ return;
+ }
+
+ mono_os_mutex_lock (&mismatched_files_section);
+ head = (SavedString*)g_hash_table_lookup (prof->saved_strings_hash, (gpointer)str);
+ if (head) {
+ while (head->next)
+ head = head->next;
+ head->next = entry;
+ } else
+ g_hash_table_insert (prof->saved_strings_hash, (gpointer)str, (gpointer)entry);
+ mono_os_mutex_unlock (&mismatched_files_section);
+}
+
+static MonoClass *string_class = NULL;
+
+static void mono_portability_remember_alloc (MonoProfiler *prof, MonoObject *obj, MonoClass *klass)
+{
+ if (klass != string_class)
+ return;
+ mono_portability_remember_string (prof, mono_object_get_domain (obj), (MonoString*)obj);
+}
+
+static void mono_portability_iomap_event (MonoProfiler *prof, const char *report, const char *pathname, const char *new_pathname)
+{
+ guint32 hash, pathnameHash;
+ MismatchedFilesStats *stats;
+
+ if (!runtime_initialized)
+ return;
+
+ mono_os_mutex_lock (&mismatched_files_section);
+ hash = calc_strings_hash (pathname, new_pathname, &pathnameHash);
+ stats = (MismatchedFilesStats*)g_hash_table_lookup (prof->mismatched_files_hash, &hash);
+ if (stats == NULL) {
+ guint32 *hashptr;
+
+ stats = (MismatchedFilesStats*) g_malloc (sizeof (MismatchedFilesStats));
+ stats->count = 1;
+ stats->requestedName = g_strdup (pathname);
+ stats->actualName = g_strdup (new_pathname);
+ hashptr = (guint32*)g_malloc (sizeof (guint32));
+ if (hashptr) {
+ *hashptr = hash;
+ g_hash_table_insert (prof->mismatched_files_hash, (gpointer)hashptr, stats);
+ } else
+ g_error ("Out of memory allocating integer pointer for mismatched files hash table.");
+
+ store_string_location (prof, (const gchar*)stats->requestedName, pathnameHash, strlen (stats->requestedName));
+ mono_os_mutex_unlock (&mismatched_files_section);
+
+ print_report ("%s - Found file path: '%s'\n", report, new_pathname);
+ } else {
+ mono_os_mutex_unlock (&mismatched_files_section);
+ stats->count++;
+ }
+}
+
+static void runtime_initialized_cb (MonoProfiler *prof)
+{
+ runtime_initialized = TRUE;
+ string_class = mono_get_string_class ();
+}
+
+static void profiler_shutdown (MonoProfiler *prof)
+{
+ print_mismatched_stats (prof);
+ mono_os_mutex_destroy (&mismatched_files_section);
+}
+
+void mono_profiler_startup (const char *desc)
+{
+ MonoProfiler *prof = g_new0 (MonoProfiler, 1);
+
+ mono_os_mutex_init (&mismatched_files_section);
+ prof->mismatched_files_hash = g_hash_table_new (mismatched_files_guint32_hash, mismatched_files_guint32_equal);
+ prof->saved_strings_hash = g_hash_table_new (NULL, NULL);
+ prof->string_locations_hash = g_hash_table_new (mismatched_files_guint32_hash, mismatched_files_guint32_equal);
+
+ mono_profiler_install (prof, profiler_shutdown);
+ mono_profiler_install_runtime_initialized (runtime_initialized_cb);
+ mono_profiler_install_iomap (mono_portability_iomap_event);
+ mono_profiler_install_allocation (mono_portability_remember_alloc);
+
+ mono_profiler_set_events ((MonoProfileFlags)(MONO_PROFILE_ALLOCATIONS | MONO_PROFILE_IOMAP_EVENTS));
+}
--- /dev/null
+#include <config.h>
+
+#include "log.h"
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_SCHED_GETAFFINITY
+#include <sched.h>
+
+# ifndef GLIBC_HAS_CPU_COUNT
+static int
+CPU_COUNT(cpu_set_t *set)
+{
+ int i, count = 0;
+
+ for (int i = 0; i < CPU_SETSIZE; i++)
+ if (CPU_ISSET(i, set))
+ count++;
+ return count;
+}
+# endif
+#endif
+
+typedef struct {
+ const char *event_name;
+ const int mask;
+} NameAndMask;
+
+static NameAndMask event_list[] = {
+ { "domain", PROFLOG_DOMAIN_EVENTS },
+ { "assembly", PROFLOG_ASSEMBLY_EVENTS },
+ { "module", PROFLOG_MODULE_EVENTS },
+ { "class", PROFLOG_CLASS_EVENTS },
+ { "jit", PROFLOG_JIT_COMPILATION_EVENTS },
+ { "exception", PROFLOG_EXCEPTION_EVENTS },
+ { "gcalloc", PROFLOG_ALLOCATION_EVENTS },
+ { "gc", PROFLOG_GC_EVENTS },
+ { "thread", PROFLOG_THREAD_EVENTS },
+ { "calls", PROFLOG_CALL_EVENTS },
+ //{ "inscov", PROFLOG_INS_COVERAGE_EVENTS }, //this is a profiler API event, but there's no actual event for us to emit here
+ //{ "sampling", PROFLOG_SAMPLING_EVENTS }, //it makes no sense to enable/disable this event by itself
+ { "monitor", PROFLOG_MONITOR_EVENTS },
+ { "gcmove", PROFLOG_GC_MOVES_EVENTS },
+ { "gcroot", PROFLOG_GC_ROOT_EVENTS },
+ { "context", PROFLOG_CONTEXT_EVENTS },
+ { "finalization", PROFLOG_FINALIZATION_EVENTS },
+ { "counter", PROFLOG_COUNTER_EVENTS },
+ { "gchandle", PROFLOG_GC_HANDLE_EVENTS },
+
+ { "typesystem", PROFLOG_TYPELOADING_ALIAS },
+ { "coverage", PROFLOG_CODECOV_ALIAS },
+ //{ "sample", PROFLOG_PERF_SAMPLING_ALIAS }, //takes args, explicitly handles
+ { "alloc", PROFLOG_GC_ALLOC_ALIAS },
+ //{ "heapshot", PROFLOG_HEAPSHOT_ALIAS }, //takes args, explicitly handled
+ { "legacy", PROFLOG_LEGACY_ALIAS },
+};
+
+static void usage (void);
+static void set_hsmode (ProfilerConfig *config, const char* val);
+static void set_sample_freq (ProfilerConfig *config, const char *val);
+static int mono_cpu_count (void);
+
+
+static gboolean
+match_option (const char *arg, const char *opt_name, const char **rval)
+{
+ if (rval) {
+ const char *end = strchr (arg, '=');
+
+ *rval = NULL;
+ if (!end)
+ return !strcmp (arg, opt_name);
+
+ if (strncmp (arg, opt_name, strlen (opt_name)) || (end - arg) > strlen (opt_name) + 1)
+ return FALSE;
+ *rval = end + 1;
+ return TRUE;
+ } else {
+ //FIXME how should we handle passing a value to an arg that doesn't expect it?
+ return !strcmp (arg, opt_name);
+ }
+}
+
+static void
+parse_arg (const char *arg, ProfilerConfig *config)
+{
+ const char *val;
+
+ if (match_option (arg, "help", NULL)) {
+ usage ();
+ } else if (match_option (arg, "report", NULL)) {
+ config->do_report = TRUE;
+ } else if (match_option (arg, "debug", NULL)) {
+ config->do_debug = TRUE;
+ } else if (match_option (arg, "debug-coverage", NULL)) {
+ config->debug_coverage = TRUE;
+ } else if (match_option (arg, "sampling-real", NULL)) {
+ config->sampling_mode = MONO_PROFILER_STAT_MODE_REAL;
+ } else if (match_option (arg, "sampling-process", NULL)) {
+ config->sampling_mode = MONO_PROFILER_STAT_MODE_PROCESS;
+ } else if (match_option (arg, "heapshot", &val)) {
+ config->enable_mask |= PROFLOG_HEAPSHOT_ALIAS;
+ set_hsmode (config, val);
+ } else if (match_option (arg, "sample", &val)) {
+ config->enable_mask |= PROFLOG_PERF_SAMPLING_ALIAS;
+ set_sample_freq (config, val);
+ } else if (match_option (arg, "zip", NULL)) {
+ config->use_zip = TRUE;
+ } else if (match_option (arg, "output", &val)) {
+ config->output_filename = g_strdup (val);
+ } else if (match_option (arg, "port", &val)) {
+ char *end;
+ config->command_port = strtoul (val, &end, 10);
+ } else if (match_option (arg, "maxframes", &val)) {
+ char *end;
+ int num_frames = strtoul (val, &end, 10);
+ if (num_frames > MAX_FRAMES)
+ num_frames = MAX_FRAMES;
+ config->notraces = num_frames == 0;
+ config->num_frames = num_frames;
+ } else if (match_option (arg, "maxsamples", &val)) {
+ char *end;
+ int max_samples = strtoul (val, &end, 10);
+ if (max_samples)
+ config->max_allocated_sample_hits = max_samples;
+ } else if (match_option (arg, "calldepth", &val)) {
+ char *end;
+ config->max_call_depth = strtoul (val, &end, 10);
+ } else if (match_option (arg, "covfilter-file", &val)) {
+ if (config->cov_filter_files == NULL)
+ config->cov_filter_files = g_ptr_array_new ();
+ g_ptr_array_add (config->cov_filter_files, g_strdup (val));
+ } else if (match_option (arg, "onlycoverage", NULL)) {
+ config->only_coverage = TRUE;
+ } else {
+ int i;
+
+ for (i = 0; i < G_N_ELEMENTS (event_list); ++i){
+ if (!strcmp (arg, event_list [i].event_name)) {
+ config->enable_mask |= event_list [i].mask;
+ break;
+ } else if (arg [0] == 'n' && arg [1] == 'o' && !strcmp (arg + 2, event_list [i].event_name)) {
+ config->disable_mask |= event_list [i].mask;
+ }
+ }
+ if (i == G_N_ELEMENTS (event_list)) {
+ printf ("Could not parse argument %s\n", arg);
+ }
+ }
+}
+
+static void
+load_args_from_env_or_default (ProfilerConfig *config)
+{
+ //XXX change this to header constants
+
+ config->max_allocated_sample_hits = mono_cpu_count () * 1000;
+ config->sample_freq = 100;
+ config->max_call_depth = 100;
+ config->num_frames = MAX_FRAMES;
+}
+
+
+void
+proflog_parse_args (ProfilerConfig *config, const char *desc)
+{
+ const char *p;
+ gboolean in_quotes = FALSE;
+ char quote_char = '\0';
+ char *buffer = malloc (strlen (desc));
+ int buffer_pos = 0;
+
+ load_args_from_env_or_default (config);
+
+ for (p = desc; *p; p++){
+ switch (*p){
+ case ',':
+ if (!in_quotes) {
+ if (buffer_pos != 0){
+ buffer [buffer_pos] = 0;
+ parse_arg (buffer, config);
+ buffer_pos = 0;
+ }
+ } else {
+ buffer [buffer_pos++] = *p;
+ }
+ break;
+
+ case '\\':
+ if (p [1]) {
+ buffer [buffer_pos++] = p[1];
+ p++;
+ }
+ break;
+ case '\'':
+ case '"':
+ if (in_quotes) {
+ if (quote_char == *p)
+ in_quotes = FALSE;
+ else
+ buffer [buffer_pos++] = *p;
+ } else {
+ in_quotes = TRUE;
+ quote_char = *p;
+ }
+ break;
+ default:
+ buffer [buffer_pos++] = *p;
+ break;
+ }
+ }
+
+ if (buffer_pos != 0) {
+ buffer [buffer_pos] = 0;
+ parse_arg (buffer, config);
+ }
+
+ g_free (buffer);
+
+ //Compure config effective mask
+ config->effective_mask = config->enable_mask & ~config->disable_mask;
+}
+
+static void
+set_hsmode (ProfilerConfig *config, const char* val)
+{
+ char *end;
+ unsigned int count;
+ if (!val)
+ return;
+ if (strcmp (val, "ondemand") == 0) {
+ config->hs_mode_ondemand = TRUE;
+ return;
+ }
+
+ count = strtoul (val, &end, 10);
+ if (val == end) {
+ usage ();
+ return;
+ }
+
+ if (strcmp (end, "ms") == 0)
+ config->hs_mode_ms = count;
+ else if (strcmp (end, "gc") == 0)
+ config->hs_mode_gc = count;
+ else
+ usage ();
+}
+
+/*
+Sampling frequency allows for one undocumented, hidden and ignored argument. The sampling kind.
+Back in the day when this was done using perf, we could specify one of: cycles,instr,cacherefs,cachemiss,branches,branchmiss
+With us moving ot userland sampling, those options are now meaningless.
+*/
+static void
+set_sample_freq (ProfilerConfig *config, const char *val)
+{
+ if (!val)
+ return;
+
+ const char *p = val;
+
+ // Is it only the frequency (new option style)?
+ if (isdigit (*p))
+ goto parse;
+
+ // Skip the sample type for backwards compatibility.
+ while (isalpha (*p))
+ p++;
+
+ // Skip the forward slash only if we got a sample type.
+ if (p != val && *p == '/') {
+ p++;
+
+ char *end;
+
+ parse:
+ config->sample_freq = strtoul (p, &end, 10);
+
+ if (p == end) {
+ usage ();
+ return;
+ }
+
+ p = end;
+ }
+
+ if (*p)
+ usage ();
+}
+
+static void
+usage (void)
+{
+ printf ("Log profiler version %d.%d (format: %d)\n", LOG_VERSION_MAJOR, LOG_VERSION_MINOR, LOG_DATA_VERSION);
+ printf ("Usage: mono --profile=log[:OPTION1[,OPTION2...]] program.exe\n");
+ printf ("Options:\n");
+ printf ("\thelp show this usage info\n");
+ printf ("\t[no]'event' enable/disable a profiling event. Valid values: domain, assembly, module, class, jit, exception, gcalloc, gc, thread, monitor, gcmove, gcroot, context, finalization, counter, gchandle\n");
+ printf ("\t[no]typesystem enable/disable typesystem related events such as class and assembly loading\n");
+ printf ("\t[no]alloc enable/disable recording allocation info\n");
+ printf ("\t[no]calls enable/disable recording enter/leave method events\n");
+ printf ("\t[no]legacy enable/disable pre mono 5.4 default profiler events\n");
+ printf ("\tsample[=frequency] enable/disable statistical sampling of threads (frequency in Hz, 100 by default)\n");
+ printf ("\theapshot[=MODE] record heap shot info (by default at each major collection)\n");
+ printf ("\t MODE: every XXms milliseconds, every YYgc collections, ondemand\n");
+ printf ("\t[no]coverage enable collection of code coverage data\n");
+ printf ("\tcovfilter=ASSEMBLY add an assembly to the code coverage filters\n");
+ printf ("\t add a + to include the assembly or a - to exclude it\n");
+ printf ("\t covfilter=-mscorlib\n");
+ printf ("\tcovfilter-file=FILE use FILE to generate the list of assemblies to be filtered\n");
+ printf ("\tmaxframes=NUM collect up to NUM stack frames\n");
+ printf ("\tcalldepth=NUM ignore method events for call chain depth bigger than NUM\n");
+ printf ("\toutput=FILENAME write the data to file FILENAME (The file is always overwriten)\n");
+ printf ("\toutput=|PROGRAM write the data to the stdin of PROGRAM\n");
+ printf ("\t %%t is subtituted with date and time, %%p with the pid\n");
+ printf ("\treport create a report instead of writing the raw data to a file\n");
+ printf ("\tzip compress the output data\n");
+ printf ("\tport=PORTNUM use PORTNUM for the listening command server\n");
+}
+
+static int
+mono_cpu_count (void)
+{
+#ifdef PLATFORM_ANDROID
+ /* Android tries really hard to save power by powering off CPUs on SMP phones which
+ * means the normal way to query cpu count returns a wrong value with userspace API.
+ * Instead we use /sys entries to query the actual hardware CPU count.
+ */
+ int count = 0;
+ char buffer[8] = {'\0'};
+ int present = open ("/sys/devices/system/cpu/present", O_RDONLY);
+ /* Format of the /sys entry is a cpulist of indexes which in the case
+ * of present is always of the form "0-(n-1)" when there is more than
+ * 1 core, n being the number of CPU cores in the system. Otherwise
+ * the value is simply 0
+ */
+ if (present != -1 && read (present, (char*)buffer, sizeof (buffer)) > 3)
+ count = strtol (((char*)buffer) + 2, NULL, 10);
+ if (present != -1)
+ close (present);
+ if (count > 0)
+ return count + 1;
+#endif
+
+#if defined(HOST_ARM) || defined (HOST_ARM64)
+
+ /* ARM platforms tries really hard to save power by powering off CPUs on SMP phones which
+ * means the normal way to query cpu count returns a wrong value with userspace API. */
+
+#ifdef _SC_NPROCESSORS_CONF
+ {
+ int count = sysconf (_SC_NPROCESSORS_CONF);
+ if (count > 0)
+ return count;
+ }
+#endif
+
+#else
+
+#ifdef HAVE_SCHED_GETAFFINITY
+ {
+ cpu_set_t set;
+ if (sched_getaffinity (getpid (), sizeof (set), &set) == 0)
+ return CPU_COUNT (&set);
+ }
+#endif
+#ifdef _SC_NPROCESSORS_ONLN
+ {
+ int count = sysconf (_SC_NPROCESSORS_ONLN);
+ if (count > 0)
+ return count;
+ }
+#endif
+
+#endif /* defined(HOST_ARM) || defined (HOST_ARM64) */
+
+#ifdef USE_SYSCTL
+ {
+ int count;
+ int mib [2];
+ size_t len = sizeof (int);
+ mib [0] = CTL_HW;
+ mib [1] = HW_NCPU;
+ if (sysctl (mib, 2, &count, &len, NULL, 0) == 0)
+ return count;
+ }
+#endif
+#ifdef HOST_WIN32
+ {
+ SYSTEM_INFO info;
+ GetSystemInfo (&info);
+ return info.dwNumberOfProcessors;
+ }
+#endif
+
+ static gboolean warned;
+
+ if (!warned) {
+ g_warning ("Don't know how to determine CPU count on this platform; assuming 1");
+ warned = TRUE;
+ }
+
+ return 1;
+}
\ No newline at end of file
--- /dev/null
+/*
+ * mono-profiler-log.c: mono log profiler
+ *
+ * Authors:
+ * Paolo Molaro (lupus@ximian.com)
+ * Alex Rønne Petersen (alexrp@xamarin.com)
+ *
+ * Copyright 2010 Novell, Inc (http://www.novell.com)
+ * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
+ */
+
+#include <config.h>
+#include <mono/metadata/assembly.h>
+#include <mono/metadata/debug-helpers.h>
+#include "../metadata/metadata-internals.h"
+#include <mono/metadata/mono-config.h>
+#include <mono/metadata/mono-gc.h>
+#include <mono/metadata/mono-perfcounters.h>
+#include <mono/utils/atomic.h>
+#include <mono/utils/hazard-pointer.h>
+#include <mono/utils/lock-free-alloc.h>
+#include <mono/utils/lock-free-queue.h>
+#include <mono/utils/mono-conc-hashtable.h>
+#include <mono/utils/mono-counters.h>
+#include <mono/utils/mono-linked-list-set.h>
+#include <mono/utils/mono-membar.h>
+#include <mono/utils/mono-mmap.h>
+#include <mono/utils/mono-os-mutex.h>
+#include <mono/utils/mono-os-semaphore.h>
+#include <mono/utils/mono-threads.h>
+#include <mono/utils/mono-threads-api.h>
+#include "log.h"
+
+#ifdef HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+#include <fcntl.h>
+#ifdef HAVE_LINK_H
+#include <link.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if defined(__APPLE__)
+#include <mach/mach_time.h>
+#endif
+#include <netinet/in.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+#include <sys/socket.h>
+#if defined (HAVE_SYS_ZLIB)
+#include <zlib.h>
+#endif
+
+#define BUFFER_SIZE (4096 * 16)
+
+/* Worst-case size in bytes of a 64-bit value encoded with LEB128. */
+#define LEB128_SIZE 10
+
+/* Size of a value encoded as a single byte. */
+#undef BYTE_SIZE // mach/i386/vm_param.h on OS X defines this to 8, but it isn't used for anything.
+#define BYTE_SIZE 1
+
+/* Size in bytes of the event prefix (ID + time). */
+#define EVENT_SIZE (BYTE_SIZE + LEB128_SIZE)
+
+static volatile gint32 runtime_inited;
+static volatile gint32 in_shutdown;
+
+static int nocalls = 0;
+static int notraces = 0;
+static int use_zip = 0;
+static int do_report = 0;
+static int do_heap_shot = 0;
+static int max_call_depth = 0;
+static int command_port = 0;
+static int heapshot_requested = 0;
+static int do_mono_sample = 0;
+static int do_debug = 0;
+static int do_coverage = 0;
+static gboolean no_counters = FALSE;
+static gboolean only_coverage = FALSE;
+static gboolean debug_coverage = FALSE;
+static int max_allocated_sample_hits;
+
+// Statistics for internal profiler data structures.
+static gint32 sample_allocations_ctr,
+ buffer_allocations_ctr;
+
+// Statistics for profiler events.
+static gint32 sync_points_ctr,
+ heap_objects_ctr,
+ heap_starts_ctr,
+ heap_ends_ctr,
+ heap_roots_ctr,
+ gc_events_ctr,
+ gc_resizes_ctr,
+ gc_allocs_ctr,
+ gc_moves_ctr,
+ gc_handle_creations_ctr,
+ gc_handle_deletions_ctr,
+ finalize_begins_ctr,
+ finalize_ends_ctr,
+ finalize_object_begins_ctr,
+ finalize_object_ends_ctr,
+ image_loads_ctr,
+ image_unloads_ctr,
+ assembly_loads_ctr,
+ assembly_unloads_ctr,
+ class_loads_ctr,
+ class_unloads_ctr,
+ method_entries_ctr,
+ method_exits_ctr,
+ method_exception_exits_ctr,
+ method_jits_ctr,
+ code_buffers_ctr,
+ exception_throws_ctr,
+ exception_clauses_ctr,
+ monitor_contentions_ctr,
+ monitor_acquisitions_ctr,
+ monitor_failures_ctr,
+ thread_starts_ctr,
+ thread_ends_ctr,
+ thread_names_ctr,
+ domain_loads_ctr,
+ domain_unloads_ctr,
+ domain_names_ctr,
+ context_loads_ctr,
+ context_unloads_ctr,
+ sample_ubins_ctr,
+ sample_usyms_ctr,
+ sample_hits_ctr,
+ counter_descriptors_ctr,
+ counter_samples_ctr,
+ perfcounter_descriptors_ctr,
+ perfcounter_samples_ctr,
+ coverage_methods_ctr,
+ coverage_statements_ctr,
+ coverage_classes_ctr,
+ coverage_assemblies_ctr;
+
+static MonoLinkedListSet profiler_thread_list;
+
+/*
+ * file format:
+ * [header] [buffer]*
+ *
+ * The file is composed by a header followed by 0 or more buffers.
+ * Each buffer contains events that happened on a thread: for a given thread
+ * buffers that appear later in the file are guaranteed to contain events
+ * that happened later in time. Buffers from separate threads could be interleaved,
+ * though.
+ * Buffers are not required to be aligned.
+ *
+ * header format:
+ * [id: 4 bytes] constant value: LOG_HEADER_ID
+ * [major: 1 byte] [minor: 1 byte] major and minor version of the log profiler
+ * [format: 1 byte] version of the data format for the rest of the file
+ * [ptrsize: 1 byte] size in bytes of a pointer in the profiled program
+ * [startup time: 8 bytes] time in milliseconds since the unix epoch when the program started
+ * [timer overhead: 4 bytes] approximate overhead in nanoseconds of the timer
+ * [flags: 4 bytes] file format flags, should be 0 for now
+ * [pid: 4 bytes] pid of the profiled process
+ * [port: 2 bytes] tcp port for server if != 0
+ * [args size: 4 bytes] size of args
+ * [args: string] arguments passed to the profiler
+ * [arch size: 4 bytes] size of arch
+ * [arch: string] architecture the profiler is running on
+ * [os size: 4 bytes] size of os
+ * [os: string] operating system the profiler is running on
+ *
+ * The multiple byte integers are in little-endian format.
+ *
+ * buffer format:
+ * [buffer header] [event]*
+ * Buffers have a fixed-size header followed by 0 or more bytes of event data.
+ * Timing information and other values in the event data are usually stored
+ * as uleb128 or sleb128 integers. To save space, as noted for each item below,
+ * some data is represented as a difference between the actual value and
+ * either the last value of the same type (like for timing information) or
+ * as the difference from a value stored in a buffer header.
+ *
+ * For timing information the data is stored as uleb128, since timing
+ * increases in a monotonic way in each thread: the value is the number of
+ * nanoseconds to add to the last seen timing data in a buffer. The first value
+ * in a buffer will be calculated from the time_base field in the buffer head.
+ *
+ * Object or heap sizes are stored as uleb128.
+ * Pointer differences are stored as sleb128, instead.
+ *
+ * If an unexpected value is found, the rest of the buffer should be ignored,
+ * as generally the later values need the former to be interpreted correctly.
+ *
+ * buffer header format:
+ * [bufid: 4 bytes] constant value: BUF_ID
+ * [len: 4 bytes] size of the data following the buffer header
+ * [time_base: 8 bytes] time base in nanoseconds since an unspecified epoch
+ * [ptr_base: 8 bytes] base value for pointers
+ * [obj_base: 8 bytes] base value for object addresses
+ * [thread id: 8 bytes] system-specific thread ID (pthread_t for example)
+ * [method_base: 8 bytes] base value for MonoMethod pointers
+ *
+ * event format:
+ * [extended info: upper 4 bits] [type: lower 4 bits]
+ * [time diff: uleb128] nanoseconds since last timing
+ * [data]*
+ * The data that follows depends on type and the extended info.
+ * Type is one of the enum values in mono-profiler-log.h: TYPE_ALLOC, TYPE_GC,
+ * TYPE_METADATA, TYPE_METHOD, TYPE_EXCEPTION, TYPE_MONITOR, TYPE_HEAP.
+ * The extended info bits are interpreted based on type, see
+ * each individual event description below.
+ * strings are represented as a 0-terminated utf8 sequence.
+ *
+ * backtrace format:
+ * [num: uleb128] number of frames following
+ * [frame: sleb128]* mum MonoMethod* as a pointer difference from the last such
+ * pointer or the buffer method_base
+ *
+ * type alloc format:
+ * type: TYPE_ALLOC
+ * exinfo: flags: TYPE_ALLOC_BT
+ * [ptr: sleb128] class as a byte difference from ptr_base
+ * [obj: sleb128] object address as a byte difference from obj_base
+ * [size: uleb128] size of the object in the heap
+ * If the TYPE_ALLOC_BT flag is set, a backtrace follows.
+ *
+ * type GC format:
+ * type: TYPE_GC
+ * exinfo: one of TYPE_GC_EVENT, TYPE_GC_RESIZE, TYPE_GC_MOVE, TYPE_GC_HANDLE_CREATED[_BT],
+ * TYPE_GC_HANDLE_DESTROYED[_BT], TYPE_GC_FINALIZE_START, TYPE_GC_FINALIZE_END,
+ * TYPE_GC_FINALIZE_OBJECT_START, TYPE_GC_FINALIZE_OBJECT_END
+ * if exinfo == TYPE_GC_RESIZE
+ * [heap_size: uleb128] new heap size
+ * if exinfo == TYPE_GC_EVENT
+ * [event type: byte] GC event (MONO_GC_EVENT_* from profiler.h)
+ * [generation: byte] GC generation event refers to
+ * if exinfo == TYPE_GC_MOVE
+ * [num_objects: uleb128] number of object moves that follow
+ * [objaddr: sleb128]+ num_objects object pointer differences from obj_base
+ * num is always an even number: the even items are the old
+ * addresses, the odd numbers are the respective new object addresses
+ * if exinfo == TYPE_GC_HANDLE_CREATED[_BT]
+ * [handle_type: uleb128] GC handle type (System.Runtime.InteropServices.GCHandleType)
+ * upper bits reserved as flags
+ * [handle: uleb128] GC handle value
+ * [objaddr: sleb128] object pointer differences from obj_base
+ * If exinfo == TYPE_GC_HANDLE_CREATED_BT, a backtrace follows.
+ * if exinfo == TYPE_GC_HANDLE_DESTROYED[_BT]
+ * [handle_type: uleb128] GC handle type (System.Runtime.InteropServices.GCHandleType)
+ * upper bits reserved as flags
+ * [handle: uleb128] GC handle value
+ * If exinfo == TYPE_GC_HANDLE_DESTROYED_BT, a backtrace follows.
+ * if exinfo == TYPE_GC_FINALIZE_OBJECT_{START,END}
+ * [object: sleb128] the object as a difference from obj_base
+ *
+ * type metadata format:
+ * type: TYPE_METADATA
+ * exinfo: one of: TYPE_END_LOAD, TYPE_END_UNLOAD (optional for TYPE_THREAD and TYPE_DOMAIN)
+ * [mtype: byte] metadata type, one of: TYPE_CLASS, TYPE_IMAGE, TYPE_ASSEMBLY, TYPE_DOMAIN,
+ * TYPE_THREAD, TYPE_CONTEXT
+ * [pointer: sleb128] pointer of the metadata type depending on mtype
+ * if mtype == TYPE_CLASS
+ * [image: sleb128] MonoImage* as a pointer difference from ptr_base
+ * [name: string] full class name
+ * if mtype == TYPE_IMAGE
+ * [name: string] image file name
+ * if mtype == TYPE_ASSEMBLY
+ * [name: string] assembly name
+ * if mtype == TYPE_DOMAIN && exinfo == 0
+ * [name: string] domain friendly name
+ * if mtype == TYPE_CONTEXT
+ * [domain: sleb128] domain id as pointer
+ * if mtype == TYPE_THREAD && exinfo == 0
+ * [name: string] thread name
+ *
+ * type method format:
+ * type: TYPE_METHOD
+ * exinfo: one of: TYPE_LEAVE, TYPE_ENTER, TYPE_EXC_LEAVE, TYPE_JIT
+ * [method: sleb128] MonoMethod* as a pointer difference from the last such
+ * pointer or the buffer method_base
+ * if exinfo == TYPE_JIT
+ * [code address: sleb128] pointer to the native code as a diff from ptr_base
+ * [code size: uleb128] size of the generated code
+ * [name: string] full method name
+ *
+ * type exception format:
+ * type: TYPE_EXCEPTION
+ * exinfo: TYPE_THROW_BT flag or one of: TYPE_CLAUSE
+ * if exinfo == TYPE_CLAUSE
+ * [clause type: byte] MonoExceptionEnum enum value
+ * [clause index: uleb128] index of the current clause
+ * [method: sleb128] MonoMethod* as a pointer difference from the last such
+ * pointer or the buffer method_base
+ * else
+ * [object: sleb128] the exception object as a difference from obj_base
+ * if exinfo has TYPE_THROW_BT set, a backtrace follows.
+ *
+ * type runtime format:
+ * type: TYPE_RUNTIME
+ * exinfo: one of: TYPE_JITHELPER
+ * if exinfo == TYPE_JITHELPER
+ * [type: byte] MonoProfilerCodeBufferType enum value
+ * [buffer address: sleb128] pointer to the native code as a diff from ptr_base
+ * [buffer size: uleb128] size of the generated code
+ * if type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE
+ * [name: string] buffer description name
+ *
+ * type monitor format:
+ * type: TYPE_MONITOR
+ * exinfo: TYPE_MONITOR_BT flag and one of: MONO_PROFILER_MONITOR_(CONTENTION|FAIL|DONE)
+ * [object: sleb128] the lock object as a difference from obj_base
+ * if exinfo.low3bits == MONO_PROFILER_MONITOR_CONTENTION
+ * If the TYPE_MONITOR_BT flag is set, a backtrace follows.
+ *
+ * type heap format
+ * type: TYPE_HEAP
+ * exinfo: one of TYPE_HEAP_START, TYPE_HEAP_END, TYPE_HEAP_OBJECT, TYPE_HEAP_ROOT
+ * if exinfo == TYPE_HEAP_OBJECT
+ * [object: sleb128] the object as a difference from obj_base
+ * [class: sleb128] the object MonoClass* as a difference from ptr_base
+ * [size: uleb128] size of the object on the heap
+ * [num_refs: uleb128] number of object references
+ * each referenced objref is preceded by a uleb128 encoded offset: the
+ * first offset is from the object address and each next offset is relative
+ * to the previous one
+ * [objrefs: sleb128]+ object referenced as a difference from obj_base
+ * The same object can appear multiple times, but only the first time
+ * with size != 0: in the other cases this data will only be used to
+ * provide additional referenced objects.
+ * if exinfo == TYPE_HEAP_ROOT
+ * [num_roots: uleb128] number of root references
+ * [num_gc: uleb128] number of major gcs
+ * [object: sleb128] the object as a difference from obj_base
+ * [root_type: byte] the root_type: MonoProfileGCRootType (profiler.h)
+ * [extra_info: uleb128] the extra_info value
+ * object, root_type and extra_info are repeated num_roots times
+ *
+ * type sample format
+ * type: TYPE_SAMPLE
+ * exinfo: one of TYPE_SAMPLE_HIT, TYPE_SAMPLE_USYM, TYPE_SAMPLE_UBIN, TYPE_SAMPLE_COUNTERS_DESC, TYPE_SAMPLE_COUNTERS
+ * if exinfo == TYPE_SAMPLE_HIT
+ * [thread: sleb128] thread id as difference from ptr_base
+ * [count: uleb128] number of following instruction addresses
+ * [ip: sleb128]* instruction pointer as difference from ptr_base
+ * [mbt_count: uleb128] number of managed backtrace frames
+ * [method: sleb128]* MonoMethod* as a pointer difference from the last such
+ * pointer or the buffer method_base (the first such method can be also indentified by ip, but this is not neccessarily true)
+ * if exinfo == TYPE_SAMPLE_USYM
+ * [address: sleb128] symbol address as a difference from ptr_base
+ * [size: uleb128] symbol size (may be 0 if unknown)
+ * [name: string] symbol name
+ * if exinfo == TYPE_SAMPLE_UBIN
+ * [address: sleb128] address where binary has been loaded
+ * [offset: uleb128] file offset of mapping (the same file can be mapped multiple times)
+ * [size: uleb128] memory size
+ * [name: string] binary name
+ * if exinfo == TYPE_SAMPLE_COUNTERS_DESC
+ * [len: uleb128] number of counters
+ * for i = 0 to len
+ * [section: uleb128] section of counter
+ * if section == MONO_COUNTER_PERFCOUNTERS:
+ * [section_name: string] section name of counter
+ * [name: string] name of counter
+ * [type: byte] type of counter
+ * [unit: byte] unit of counter
+ * [variance: byte] variance of counter
+ * [index: uleb128] unique index of counter
+ * if exinfo == TYPE_SAMPLE_COUNTERS
+ * while true:
+ * [index: uleb128] unique index of counter
+ * if index == 0:
+ * break
+ * [type: byte] type of counter value
+ * if type == string:
+ * if value == null:
+ * [0: uleb128] 0 -> value is null
+ * else:
+ * [1: uleb128] 1 -> value is not null
+ * [value: string] counter value
+ * else:
+ * [value: uleb128/sleb128/double] counter value, can be sleb128, uleb128 or double (determined by using type)
+ *
+ * type coverage format
+ * type: TYPE_COVERAGE
+ * exinfo: one of TYPE_COVERAGE_METHOD, TYPE_COVERAGE_STATEMENT, TYPE_COVERAGE_ASSEMBLY, TYPE_COVERAGE_CLASS
+ * if exinfo == TYPE_COVERAGE_METHOD
+ * [assembly: string] name of assembly
+ * [class: string] name of the class
+ * [name: string] name of the method
+ * [signature: string] the signature of the method
+ * [filename: string] the file path of the file that contains this method
+ * [token: uleb128] the method token
+ * [method_id: uleb128] an ID for this data to associate with the buffers of TYPE_COVERAGE_STATEMENTS
+ * [len: uleb128] the number of TYPE_COVERAGE_BUFFERS associated with this method
+ * if exinfo == TYPE_COVERAGE_STATEMENTS
+ * [method_id: uleb128] an the TYPE_COVERAGE_METHOD buffer to associate this with
+ * [offset: uleb128] the il offset relative to the previous offset
+ * [counter: uleb128] the counter for this instruction
+ * [line: uleb128] the line of filename containing this instruction
+ * [column: uleb128] the column containing this instruction
+ * if exinfo == TYPE_COVERAGE_ASSEMBLY
+ * [name: string] assembly name
+ * [guid: string] assembly GUID
+ * [filename: string] assembly filename
+ * [number_of_methods: uleb128] the number of methods in this assembly
+ * [fully_covered: uleb128] the number of fully covered methods
+ * [partially_covered: uleb128] the number of partially covered methods
+ * currently partially_covered will always be 0, and fully_covered is the
+ * number of methods that are fully and partially covered.
+ * if exinfo == TYPE_COVERAGE_CLASS
+ * [name: string] assembly name
+ * [class: string] class name
+ * [number_of_methods: uleb128] the number of methods in this class
+ * [fully_covered: uleb128] the number of fully covered methods
+ * [partially_covered: uleb128] the number of partially covered methods
+ * currently partially_covered will always be 0, and fully_covered is the
+ * number of methods that are fully and partially covered.
+ *
+ * type meta format:
+ * type: TYPE_META
+ * exinfo: one of: TYPE_SYNC_POINT
+ * if exinfo == TYPE_SYNC_POINT
+ * [type: byte] MonoProfilerSyncPointType enum value
+ */
+
+// Pending data to be written to the log, for a single thread.
+// Threads periodically flush their own LogBuffers by calling safe_send
+typedef struct _LogBuffer LogBuffer;
+struct _LogBuffer {
+ // Next (older) LogBuffer in processing queue
+ LogBuffer *next;
+
+ uint64_t time_base;
+ uint64_t last_time;
+ uintptr_t ptr_base;
+ uintptr_t method_base;
+ uintptr_t last_method;
+ uintptr_t obj_base;
+ uintptr_t thread_id;
+
+ // Bytes allocated for this LogBuffer
+ int size;
+
+ // Start of currently unused space in buffer
+ unsigned char* cursor;
+
+ // Pointer to start-of-structure-plus-size (for convenience)
+ unsigned char* buf_end;
+
+ // Start of data in buffer. Contents follow "buffer format" described above.
+ unsigned char buf [1];
+};
+
+typedef struct {
+ MonoLinkedListSetNode node;
+
+ // Convenience pointer to the profiler structure.
+ MonoProfiler *profiler;
+
+ // Was this thread added to the LLS?
+ gboolean attached;
+
+ // The current log buffer for this thread.
+ LogBuffer *buffer;
+
+ // Methods referenced by events in `buffer`, see `MethodInfo`.
+ GPtrArray *methods;
+
+ // Current call depth for enter/leave events.
+ int call_depth;
+
+ // Indicates whether this thread is currently writing to its `buffer`.
+ gboolean busy;
+
+ // Has this thread written a thread end event to `buffer`?
+ gboolean ended;
+} MonoProfilerThread;
+
+static uintptr_t
+thread_id (void)
+{
+ return (uintptr_t) mono_native_thread_id_get ();
+}
+
+static uintptr_t
+process_id (void)
+{
+#ifdef HOST_WIN32
+ return (uintptr_t) GetCurrentProcessId ();
+#else
+ return (uintptr_t) getpid ();
+#endif
+}
+
+#ifdef __APPLE__
+static mach_timebase_info_data_t timebase_info;
+#elif defined (HOST_WIN32)
+static LARGE_INTEGER pcounter_freq;
+#endif
+
+#define TICKS_PER_SEC 1000000000LL
+
+static uint64_t
+current_time (void)
+{
+#ifdef __APPLE__
+ uint64_t time = mach_absolute_time ();
+
+ time *= timebase_info.numer;
+ time /= timebase_info.denom;
+
+ return time;
+#elif defined (HOST_WIN32)
+ LARGE_INTEGER value;
+
+ QueryPerformanceCounter (&value);
+
+ return value.QuadPart * TICKS_PER_SEC / pcounter_freq.QuadPart;
+#elif defined (CLOCK_MONOTONIC)
+ struct timespec tspec;
+
+ clock_gettime (CLOCK_MONOTONIC, &tspec);
+
+ return ((uint64_t) tspec.tv_sec * TICKS_PER_SEC + tspec.tv_nsec);
+#else
+ struct timeval tv;
+
+ gettimeofday (&tv, NULL);
+
+ return ((uint64_t) tv.tv_sec * TICKS_PER_SEC + tv.tv_usec * 1000);
+#endif
+}
+
+static int timer_overhead;
+
+static void
+init_time (void)
+{
+#ifdef __APPLE__
+ mach_timebase_info (&timebase_info);
+#elif defined (HOST_WIN32)
+ QueryPerformanceFrequency (&pcounter_freq);
+#endif
+
+ uint64_t time_start = current_time ();
+
+ for (int i = 0; i < 256; ++i)
+ current_time ();
+
+ uint64_t time_end = current_time ();
+
+ timer_overhead = (time_end - time_start) / 256;
+}
+
+/*
+ * These macros should be used when writing an event to a log buffer. They take
+ * care of a bunch of stuff that can be repetitive and error-prone, such as
+ * acquiring/releasing the buffer lock, incrementing the event counter,
+ * expanding the log buffer, processing requests, etc. They also create a scope
+ * so that it's harder to leak the LogBuffer pointer, which can be problematic
+ * as the pointer is unstable when the buffer lock isn't acquired.
+ */
+
+#define ENTER_LOG(COUNTER, BUFFER, SIZE) \
+ do { \
+ MonoProfilerThread *thread__ = PROF_TLS_GET (); \
+ if (thread__->attached) \
+ buffer_lock (); \
+ g_assert (!thread__->busy && "Why are we trying to write a new event while already writing one?"); \
+ thread__->busy = TRUE; \
+ InterlockedIncrement ((COUNTER)); \
+ LogBuffer *BUFFER = ensure_logbuf_unsafe (thread__, (SIZE))
+
+#define EXIT_LOG_EXPLICIT(SEND, REQUESTS) \
+ thread__->busy = FALSE; \
+ if ((SEND)) \
+ send_log_unsafe (TRUE); \
+ if (thread__->attached) \
+ buffer_unlock (); \
+ if ((REQUESTS)) \
+ process_requests (); \
+ } while (0)
+
+// Pass these to EXIT_LOG_EXPLICIT () for easier reading.
+#define DO_SEND TRUE
+#define NO_SEND FALSE
+#define DO_REQUESTS TRUE
+#define NO_REQUESTS FALSE
+
+#define EXIT_LOG EXIT_LOG_EXPLICIT (DO_SEND, DO_REQUESTS)
+
+static volatile gint32 buffer_rwlock_count;
+static volatile gpointer buffer_rwlock_exclusive;
+
+// Can be used recursively.
+static void
+buffer_lock (void)
+{
+ /*
+ * If the thread holding the exclusive lock tries to modify the
+ * reader count, just make it a no-op. This way, we also avoid
+ * invoking the GC safe point macros below, which could break if
+ * done from a thread that is currently the initiator of STW.
+ *
+ * In other words, we rely on the fact that the GC thread takes
+ * the exclusive lock in the gc_event () callback when the world
+ * is about to stop.
+ */
+ if (InterlockedReadPointer (&buffer_rwlock_exclusive) != (gpointer) thread_id ()) {
+ MONO_ENTER_GC_SAFE;
+
+ while (InterlockedReadPointer (&buffer_rwlock_exclusive))
+ mono_thread_info_yield ();
+
+ InterlockedIncrement (&buffer_rwlock_count);
+
+ MONO_EXIT_GC_SAFE;
+ }
+
+ mono_memory_barrier ();
+}
+
+static void
+buffer_unlock (void)
+{
+ mono_memory_barrier ();
+
+ // See the comment in buffer_lock ().
+ if (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id ())
+ return;
+
+ g_assert (InterlockedRead (&buffer_rwlock_count) && "Why are we trying to decrement a zero reader count?");
+
+ InterlockedDecrement (&buffer_rwlock_count);
+}
+
+// Cannot be used recursively.
+static void
+buffer_lock_excl (void)
+{
+ gpointer tid = (gpointer) thread_id ();
+
+ g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) != tid && "Why are we taking the exclusive lock twice?");
+
+ MONO_ENTER_GC_SAFE;
+
+ while (InterlockedCompareExchangePointer (&buffer_rwlock_exclusive, tid, 0))
+ mono_thread_info_yield ();
+
+ while (InterlockedRead (&buffer_rwlock_count))
+ mono_thread_info_yield ();
+
+ MONO_EXIT_GC_SAFE;
+
+ mono_memory_barrier ();
+}
+
+static void
+buffer_unlock_excl (void)
+{
+ mono_memory_barrier ();
+
+ g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) && "Why is the exclusive lock not held?");
+ g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id () && "Why does another thread hold the exclusive lock?");
+ g_assert (!InterlockedRead (&buffer_rwlock_count) && "Why are there readers when the exclusive lock is held?");
+
+ InterlockedWritePointer (&buffer_rwlock_exclusive, NULL);
+}
+
+typedef struct _BinaryObject BinaryObject;
+struct _BinaryObject {
+ BinaryObject *next;
+ void *addr;
+ char *name;
+};
+
+struct _MonoProfiler {
+ FILE* file;
+#if defined (HAVE_SYS_ZLIB)
+ gzFile gzfile;
+#endif
+ char *args;
+ uint64_t startup_time;
+ int pipe_output;
+ int command_port;
+ int server_socket;
+ int pipes [2];
+ MonoNativeThreadId helper_thread;
+ MonoNativeThreadId writer_thread;
+ MonoNativeThreadId dumper_thread;
+ volatile gint32 run_writer_thread;
+ MonoLockFreeAllocSizeClass writer_entry_size_class;
+ MonoLockFreeAllocator writer_entry_allocator;
+ MonoLockFreeQueue writer_queue;
+ MonoSemType writer_queue_sem;
+ MonoConcurrentHashTable *method_table;
+ mono_mutex_t method_table_mutex;
+ volatile gint32 run_dumper_thread;
+ MonoLockFreeQueue dumper_queue;
+ MonoSemType dumper_queue_sem;
+ MonoLockFreeAllocSizeClass sample_size_class;
+ MonoLockFreeAllocator sample_allocator;
+ MonoLockFreeQueue sample_reuse_queue;
+ BinaryObject *binary_objects;
+ GPtrArray *coverage_filters;
+};
+
+typedef struct {
+ MonoLockFreeQueueNode node;
+ GPtrArray *methods;
+ LogBuffer *buffer;
+} WriterQueueEntry;
+
+#define WRITER_ENTRY_BLOCK_SIZE (mono_pagesize ())
+
+typedef struct {
+ MonoMethod *method;
+ MonoJitInfo *ji;
+ uint64_t time;
+} MethodInfo;
+
+#ifdef HOST_WIN32
+
+#define PROF_TLS_SET(VAL) (TlsSetValue (profiler_tls, (VAL)))
+#define PROF_TLS_GET() ((MonoProfilerThread *) TlsGetValue (profiler_tls))
+#define PROF_TLS_INIT() (profiler_tls = TlsAlloc ())
+#define PROF_TLS_FREE() (TlsFree (profiler_tls))
+
+static DWORD profiler_tls;
+
+#elif HAVE_KW_THREAD
+
+#define PROF_TLS_SET(VAL) (profiler_tls = (VAL))
+#define PROF_TLS_GET() (profiler_tls)
+#define PROF_TLS_INIT()
+#define PROF_TLS_FREE()
+
+static __thread MonoProfilerThread *profiler_tls;
+
+#else
+
+#define PROF_TLS_SET(VAL) (pthread_setspecific (profiler_tls, (VAL)))
+#define PROF_TLS_GET() ((MonoProfilerThread *) pthread_getspecific (profiler_tls))
+#define PROF_TLS_INIT() (pthread_key_create (&profiler_tls, NULL))
+#define PROF_TLS_FREE() (pthread_key_delete (profiler_tls))
+
+static pthread_key_t profiler_tls;
+
+#endif
+
+static char*
+pstrdup (const char *s)
+{
+ int len = strlen (s) + 1;
+ char *p = (char *) g_malloc (len);
+ memcpy (p, s, len);
+ return p;
+}
+
+static void *
+alloc_buffer (int size)
+{
+ return mono_valloc (NULL, size, MONO_MMAP_READ | MONO_MMAP_WRITE | MONO_MMAP_ANON | MONO_MMAP_PRIVATE, MONO_MEM_ACCOUNT_PROFILER);
+}
+
+static void
+free_buffer (void *buf, int size)
+{
+ mono_vfree (buf, size, MONO_MEM_ACCOUNT_PROFILER);
+}
+
+static LogBuffer*
+create_buffer (uintptr_t tid)
+{
+ LogBuffer* buf = (LogBuffer *) alloc_buffer (BUFFER_SIZE);
+
+ InterlockedIncrement (&buffer_allocations_ctr);
+
+ buf->size = BUFFER_SIZE;
+ buf->time_base = current_time ();
+ buf->last_time = buf->time_base;
+ buf->buf_end = (unsigned char *) buf + buf->size;
+ buf->cursor = buf->buf;
+ buf->thread_id = tid;
+
+ return buf;
+}
+
+/*
+ * Must be called with the reader lock held if thread is the current thread, or
+ * the exclusive lock if thread is a different thread. However, if thread is
+ * the current thread, and init_thread () was called with add_to_lls = FALSE,
+ * then no locking is necessary.
+ */
+static void
+init_buffer_state (MonoProfilerThread *thread)
+{
+ thread->buffer = create_buffer (thread->node.key);
+ thread->methods = NULL;
+}
+
+static void
+clear_hazard_pointers (MonoThreadHazardPointers *hp)
+{
+ mono_hazard_pointer_clear (hp, 0);
+ mono_hazard_pointer_clear (hp, 1);
+ mono_hazard_pointer_clear (hp, 2);
+}
+
+static MonoProfilerThread *
+init_thread (MonoProfiler *prof, gboolean add_to_lls)
+{
+ MonoProfilerThread *thread = PROF_TLS_GET ();
+
+ /*
+ * Sometimes we may try to initialize a thread twice. One example is the
+ * main thread: We initialize it when setting up the profiler, but we will
+ * also get a thread_start () callback for it. Another example is when
+ * attaching new threads to the runtime: We may get a gc_alloc () callback
+ * for that thread's thread object (where we initialize it), soon followed
+ * by a thread_start () callback.
+ *
+ * These cases are harmless anyhow. Just return if we've already done the
+ * initialization work.
+ */
+ if (thread)
+ return thread;
+
+ thread = g_malloc (sizeof (MonoProfilerThread));
+ thread->node.key = thread_id ();
+ thread->profiler = prof;
+ thread->attached = add_to_lls;
+ thread->call_depth = 0;
+ thread->busy = 0;
+ thread->ended = FALSE;
+
+ init_buffer_state (thread);
+
+ /*
+ * Some internal profiler threads don't need to be cleaned up
+ * by the main thread on shutdown.
+ */
+ if (add_to_lls) {
+ MonoThreadHazardPointers *hp = mono_hazard_pointer_get ();
+ g_assert (mono_lls_insert (&profiler_thread_list, hp, &thread->node) && "Why can't we insert the thread in the LLS?");
+ clear_hazard_pointers (hp);
+ }
+
+ PROF_TLS_SET (thread);
+
+ return thread;
+}
+
+// Only valid if init_thread () was called with add_to_lls = FALSE.
+static void
+deinit_thread (MonoProfilerThread *thread)
+{
+ g_assert (!thread->attached && "Why are we manually freeing an attached thread?");
+
+ g_free (thread);
+ PROF_TLS_SET (NULL);
+}
+
+// Only valid if init_thread () was called with add_to_lls = FALSE.
+static LogBuffer *
+ensure_logbuf_unsafe (MonoProfilerThread *thread, int bytes)
+{
+ LogBuffer *old = thread->buffer;
+
+ if (old && old->cursor + bytes + 100 < old->buf_end)
+ return old;
+
+ LogBuffer *new_ = create_buffer (thread->node.key);
+ new_->next = old;
+ thread->buffer = new_;
+
+ return new_;
+}
+
+static void
+encode_uleb128 (uint64_t value, uint8_t *buf, uint8_t **endbuf)
+{
+ uint8_t *p = buf;
+
+ do {
+ uint8_t b = value & 0x7f;
+ value >>= 7;
+
+ if (value != 0) /* more bytes to come */
+ b |= 0x80;
+
+ *p ++ = b;
+ } while (value);
+
+ *endbuf = p;
+}
+
+static void
+encode_sleb128 (intptr_t value, uint8_t *buf, uint8_t **endbuf)
+{
+ int more = 1;
+ int negative = (value < 0);
+ unsigned int size = sizeof (intptr_t) * 8;
+ uint8_t byte;
+ uint8_t *p = buf;
+
+ while (more) {
+ byte = value & 0x7f;
+ value >>= 7;
+
+ /* the following is unnecessary if the
+ * implementation of >>= uses an arithmetic rather
+ * than logical shift for a signed left operand
+ */
+ if (negative)
+ /* sign extend */
+ value |= - ((intptr_t) 1 <<(size - 7));
+
+ /* sign bit of byte is second high order bit (0x40) */
+ if ((value == 0 && !(byte & 0x40)) ||
+ (value == -1 && (byte & 0x40)))
+ more = 0;
+ else
+ byte |= 0x80;
+
+ *p ++= byte;
+ }
+
+ *endbuf = p;
+}
+
+static void
+emit_byte (LogBuffer *logbuffer, int value)
+{
+ logbuffer->cursor [0] = value;
+ logbuffer->cursor++;
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+emit_value (LogBuffer *logbuffer, int value)
+{
+ encode_uleb128 (value, logbuffer->cursor, &logbuffer->cursor);
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+emit_time (LogBuffer *logbuffer, uint64_t value)
+{
+ uint64_t tdiff = value - logbuffer->last_time;
+ encode_uleb128 (tdiff, logbuffer->cursor, &logbuffer->cursor);
+ logbuffer->last_time = value;
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+emit_event_time (LogBuffer *logbuffer, int event, uint64_t time)
+{
+ emit_byte (logbuffer, event);
+ emit_time (logbuffer, time);
+}
+
+static void
+emit_event (LogBuffer *logbuffer, int event)
+{
+ emit_event_time (logbuffer, event, current_time ());
+}
+
+static void
+emit_svalue (LogBuffer *logbuffer, int64_t value)
+{
+ encode_sleb128 (value, logbuffer->cursor, &logbuffer->cursor);
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+emit_uvalue (LogBuffer *logbuffer, uint64_t value)
+{
+ encode_uleb128 (value, logbuffer->cursor, &logbuffer->cursor);
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+emit_ptr (LogBuffer *logbuffer, void *ptr)
+{
+ if (!logbuffer->ptr_base)
+ logbuffer->ptr_base = (uintptr_t) ptr;
+
+ emit_svalue (logbuffer, (intptr_t) ptr - logbuffer->ptr_base);
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+emit_method_inner (LogBuffer *logbuffer, void *method)
+{
+ if (!logbuffer->method_base) {
+ logbuffer->method_base = (intptr_t) method;
+ logbuffer->last_method = (intptr_t) method;
+ }
+
+ encode_sleb128 ((intptr_t) ((char *) method - (char *) logbuffer->last_method), logbuffer->cursor, &logbuffer->cursor);
+ logbuffer->last_method = (intptr_t) method;
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+register_method_local (MonoMethod *method, MonoJitInfo *ji)
+{
+ MonoProfilerThread *thread = PROF_TLS_GET ();
+
+ if (!mono_conc_hashtable_lookup (thread->profiler->method_table, method)) {
+ MethodInfo *info = (MethodInfo *) g_malloc (sizeof (MethodInfo));
+
+ info->method = method;
+ info->ji = ji;
+ info->time = current_time ();
+
+ GPtrArray *arr = thread->methods ? thread->methods : (thread->methods = g_ptr_array_new ());
+ g_ptr_array_add (arr, info);
+ }
+}
+
+static void
+emit_method (LogBuffer *logbuffer, MonoMethod *method)
+{
+ register_method_local (method, NULL);
+ emit_method_inner (logbuffer, method);
+}
+
+static void
+emit_obj (LogBuffer *logbuffer, void *ptr)
+{
+ if (!logbuffer->obj_base)
+ logbuffer->obj_base = (uintptr_t) ptr >> 3;
+
+ emit_svalue (logbuffer, ((uintptr_t) ptr >> 3) - logbuffer->obj_base);
+
+ g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
+}
+
+static void
+emit_string (LogBuffer *logbuffer, const char *str, size_t size)
+{
+ size_t i = 0;
+ if (str) {
+ for (; i < size; i++) {
+ if (str[i] == '\0')
+ break;
+ emit_byte (logbuffer, str [i]);
+ }
+ }
+ emit_byte (logbuffer, '\0');
+}
+
+static void
+emit_double (LogBuffer *logbuffer, double value)
+{
+ int i;
+ unsigned char buffer[8];
+ memcpy (buffer, &value, 8);
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+ for (i = 7; i >= 0; i--)
+#else
+ for (i = 0; i < 8; i++)
+#endif
+ emit_byte (logbuffer, buffer[i]);
+}
+
+static char*
+write_int16 (char *buf, int32_t value)
+{
+ int i;
+ for (i = 0; i < 2; ++i) {
+ buf [i] = value;
+ value >>= 8;
+ }
+ return buf + 2;
+}
+
+static char*
+write_int32 (char *buf, int32_t value)
+{
+ int i;
+ for (i = 0; i < 4; ++i) {
+ buf [i] = value;
+ value >>= 8;
+ }
+ return buf + 4;
+}
+
+static char*
+write_int64 (char *buf, int64_t value)
+{
+ int i;
+ for (i = 0; i < 8; ++i) {
+ buf [i] = value;
+ value >>= 8;
+ }
+ return buf + 8;
+}
+
+static char *
+write_header_string (char *p, const char *str)
+{
+ size_t len = strlen (str) + 1;
+
+ p = write_int32 (p, len);
+ strcpy (p, str);
+
+ return p + len;
+}
+
+static void
+dump_header (MonoProfiler *profiler)
+{
+ const char *args = profiler->args;
+ const char *arch = mono_config_get_cpu ();
+ const char *os = mono_config_get_os ();
+
+ char *hbuf = g_malloc (
+ sizeof (gint32) /* header id */ +
+ sizeof (gint8) /* major version */ +
+ sizeof (gint8) /* minor version */ +
+ sizeof (gint8) /* data version */ +
+ sizeof (gint8) /* word size */ +
+ sizeof (gint64) /* startup time */ +
+ sizeof (gint32) /* timer overhead */ +
+ sizeof (gint32) /* flags */ +
+ sizeof (gint32) /* process id */ +
+ sizeof (gint16) /* command port */ +
+ sizeof (gint32) + strlen (args) + 1 /* arguments */ +
+ sizeof (gint32) + strlen (arch) + 1 /* architecture */ +
+ sizeof (gint32) + strlen (os) + 1 /* operating system */
+ );
+ char *p = hbuf;
+
+ p = write_int32 (p, LOG_HEADER_ID);
+ *p++ = LOG_VERSION_MAJOR;
+ *p++ = LOG_VERSION_MINOR;
+ *p++ = LOG_DATA_VERSION;
+ *p++ = sizeof (void *);
+ p = write_int64 (p, ((uint64_t) time (NULL)) * 1000);
+ p = write_int32 (p, timer_overhead);
+ p = write_int32 (p, 0); /* flags */
+ p = write_int32 (p, process_id ());
+ p = write_int16 (p, profiler->command_port);
+ p = write_header_string (p, args);
+ p = write_header_string (p, arch);
+ p = write_header_string (p, os);
+
+#if defined (HAVE_SYS_ZLIB)
+ if (profiler->gzfile) {
+ gzwrite (profiler->gzfile, hbuf, p - hbuf);
+ } else
+#endif
+ {
+ fwrite (hbuf, p - hbuf, 1, profiler->file);
+ fflush (profiler->file);
+ }
+
+ g_free (hbuf);
+}
+
+/*
+ * Must be called with the reader lock held if thread is the current thread, or
+ * the exclusive lock if thread is a different thread. However, if thread is
+ * the current thread, and init_thread () was called with add_to_lls = FALSE,
+ * then no locking is necessary.
+ */
+static void
+send_buffer (MonoProfilerThread *thread)
+{
+ WriterQueueEntry *entry = mono_lock_free_alloc (&thread->profiler->writer_entry_allocator);
+ entry->methods = thread->methods;
+ entry->buffer = thread->buffer;
+
+ mono_lock_free_queue_node_init (&entry->node, FALSE);
+
+ mono_lock_free_queue_enqueue (&thread->profiler->writer_queue, &entry->node);
+ mono_os_sem_post (&thread->profiler->writer_queue_sem);
+}
+
+static void
+free_thread (gpointer p)
+{
+ MonoProfilerThread *thread = p;
+
+ if (!thread->ended) {
+ /*
+ * The thread is being cleaned up by the main thread during
+ * shutdown. This typically happens for internal runtime
+ * threads. We need to synthesize a thread end event.
+ */
+
+ InterlockedIncrement (&thread_ends_ctr);
+
+ LogBuffer *buf = ensure_logbuf_unsafe (thread,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* tid */
+ );
+
+ emit_event (buf, TYPE_END_UNLOAD | TYPE_METADATA);
+ emit_byte (buf, TYPE_THREAD);
+ emit_ptr (buf, (void *) thread->node.key);
+ }
+
+ send_buffer (thread);
+
+ g_free (thread);
+}
+
+static void
+remove_thread (MonoProfilerThread *thread)
+{
+ MonoThreadHazardPointers *hp = mono_hazard_pointer_get ();
+
+ if (mono_lls_remove (&profiler_thread_list, hp, &thread->node))
+ mono_thread_hazardous_try_free (thread, free_thread);
+
+ clear_hazard_pointers (hp);
+}
+
+static void
+dump_buffer (MonoProfiler *profiler, LogBuffer *buf)
+{
+ char hbuf [128];
+ char *p = hbuf;
+
+ if (buf->next)
+ dump_buffer (profiler, buf->next);
+
+ if (buf->cursor - buf->buf) {
+ p = write_int32 (p, BUF_ID);
+ p = write_int32 (p, buf->cursor - buf->buf);
+ p = write_int64 (p, buf->time_base);
+ p = write_int64 (p, buf->ptr_base);
+ p = write_int64 (p, buf->obj_base);
+ p = write_int64 (p, buf->thread_id);
+ p = write_int64 (p, buf->method_base);
+
+#if defined (HAVE_SYS_ZLIB)
+ if (profiler->gzfile) {
+ gzwrite (profiler->gzfile, hbuf, p - hbuf);
+ gzwrite (profiler->gzfile, buf->buf, buf->cursor - buf->buf);
+ } else
+#endif
+ {
+ fwrite (hbuf, p - hbuf, 1, profiler->file);
+ fwrite (buf->buf, buf->cursor - buf->buf, 1, profiler->file);
+ fflush (profiler->file);
+ }
+ }
+
+ free_buffer (buf, buf->size);
+}
+
+static void
+dump_buffer_threadless (MonoProfiler *profiler, LogBuffer *buf)
+{
+ for (LogBuffer *iter = buf; iter; iter = iter->next)
+ iter->thread_id = 0;
+
+ dump_buffer (profiler, buf);
+}
+
+static void
+process_requests (void)
+{
+ if (heapshot_requested)
+ mono_gc_collect (mono_gc_max_generation ());
+}
+
+// Only valid if init_thread () was called with add_to_lls = FALSE.
+static void
+send_log_unsafe (gboolean if_needed)
+{
+ MonoProfilerThread *thread = PROF_TLS_GET ();
+
+ if (!if_needed || (if_needed && thread->buffer->next)) {
+ if (!thread->attached)
+ for (LogBuffer *iter = thread->buffer; iter; iter = iter->next)
+ iter->thread_id = 0;
+
+ send_buffer (thread);
+ init_buffer_state (thread);
+ }
+}
+
+// Assumes that the exclusive lock is held.
+static void
+sync_point_flush (void)
+{
+ g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id () && "Why don't we hold the exclusive lock?");
+
+ MONO_LLS_FOREACH_SAFE (&profiler_thread_list, MonoProfilerThread, thread) {
+ g_assert (thread->attached && "Why is a thread in the LLS not attached?");
+
+ send_buffer (thread);
+ init_buffer_state (thread);
+ } MONO_LLS_FOREACH_SAFE_END
+}
+
+// Assumes that the exclusive lock is held.
+static void
+sync_point_mark (MonoProfilerSyncPointType type)
+{
+ g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id () && "Why don't we hold the exclusive lock?");
+
+ ENTER_LOG (&sync_points_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* type */
+ );
+
+ emit_event (logbuffer, TYPE_META | TYPE_SYNC_POINT);
+ emit_byte (logbuffer, type);
+
+ EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
+
+ send_log_unsafe (FALSE);
+}
+
+// Assumes that the exclusive lock is held.
+static void
+sync_point (MonoProfilerSyncPointType type)
+{
+ sync_point_flush ();
+ sync_point_mark (type);
+}
+
+static int
+gc_reference (MonoObject *obj, MonoClass *klass, uintptr_t size, uintptr_t num, MonoObject **refs, uintptr_t *offsets, void *data)
+{
+ /* account for object alignment in the heap */
+ size += 7;
+ size &= ~7;
+
+ ENTER_LOG (&heap_objects_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* obj */ +
+ LEB128_SIZE /* klass */ +
+ LEB128_SIZE /* size */ +
+ LEB128_SIZE /* num */ +
+ num * (
+ LEB128_SIZE /* offset */ +
+ LEB128_SIZE /* ref */
+ )
+ );
+
+ emit_event (logbuffer, TYPE_HEAP_OBJECT | TYPE_HEAP);
+ emit_obj (logbuffer, obj);
+ emit_ptr (logbuffer, klass);
+ emit_value (logbuffer, size);
+ emit_value (logbuffer, num);
+
+ uintptr_t last_offset = 0;
+
+ for (int i = 0; i < num; ++i) {
+ emit_value (logbuffer, offsets [i] - last_offset);
+ last_offset = offsets [i];
+ emit_obj (logbuffer, refs [i]);
+ }
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+ return 0;
+}
+
+static unsigned int hs_mode_ms = 0;
+static unsigned int hs_mode_gc = 0;
+static unsigned int hs_mode_ondemand = 0;
+static unsigned int gc_count = 0;
+static uint64_t last_hs_time = 0;
+static gboolean do_heap_walk = FALSE;
+
+static void
+heap_walk (MonoProfiler *profiler)
+{
+ ENTER_LOG (&heap_starts_ctr, logbuffer,
+ EVENT_SIZE /* event */
+ );
+
+ emit_event (logbuffer, TYPE_HEAP_START | TYPE_HEAP);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+ mono_gc_walk_heap (0, gc_reference, NULL);
+
+ ENTER_LOG (&heap_ends_ctr, logbuffer,
+ EVENT_SIZE /* event */
+ );
+
+ emit_event (logbuffer, TYPE_HEAP_END | TYPE_HEAP);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+
+static void
+gc_roots (MonoProfiler *prof, int num, void **objects, int *root_types, uintptr_t *extra_info)
+{
+ ENTER_LOG (&heap_roots_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* num */ +
+ LEB128_SIZE /* collections */ +
+ num * (
+ LEB128_SIZE /* object */ +
+ LEB128_SIZE /* root type */ +
+ LEB128_SIZE /* extra info */
+ )
+ );
+
+ emit_event (logbuffer, TYPE_HEAP_ROOT | TYPE_HEAP);
+ emit_value (logbuffer, num);
+ emit_value (logbuffer, mono_gc_collection_count (mono_gc_max_generation ()));
+
+ for (int i = 0; i < num; ++i) {
+ emit_obj (logbuffer, objects [i]);
+ emit_byte (logbuffer, root_types [i]);
+ emit_value (logbuffer, extra_info [i]);
+ }
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+
+static void
+gc_event (MonoProfiler *profiler, MonoGCEvent ev, int generation)
+{
+ ENTER_LOG (&gc_events_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* gc event */ +
+ BYTE_SIZE /* generation */
+ );
+
+ emit_event (logbuffer, TYPE_GC_EVENT | TYPE_GC);
+ emit_byte (logbuffer, ev);
+ emit_byte (logbuffer, generation);
+
+ EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
+
+ switch (ev) {
+ case MONO_GC_EVENT_START:
+ if (generation == mono_gc_max_generation ())
+ gc_count++;
+
+ uint64_t now = current_time ();
+
+ if (hs_mode_ms && (now - last_hs_time) / 1000 * 1000 >= hs_mode_ms)
+ do_heap_walk = TRUE;
+ else if (hs_mode_gc && !(gc_count % hs_mode_gc))
+ do_heap_walk = TRUE;
+ else if (hs_mode_ondemand)
+ do_heap_walk = heapshot_requested;
+ else if (!hs_mode_ms && !hs_mode_gc && generation == mono_gc_max_generation ())
+ do_heap_walk = TRUE;
+ break;
+ case MONO_GC_EVENT_PRE_STOP_WORLD_LOCKED:
+ /*
+ * Ensure that no thread can be in the middle of writing to
+ * a buffer when the world stops...
+ */
+ buffer_lock_excl ();
+ break;
+ case MONO_GC_EVENT_POST_STOP_WORLD:
+ /*
+ * ... So that we now have a consistent view of all buffers.
+ * This allows us to flush them. We need to do this because
+ * they may contain object allocation events that need to be
+ * committed to the log file before any object move events
+ * that will be produced during this GC.
+ */
+ sync_point (SYNC_POINT_WORLD_STOP);
+ break;
+ case MONO_GC_EVENT_PRE_START_WORLD:
+ if (do_heap_shot && do_heap_walk) {
+ heap_walk (profiler);
+
+ do_heap_walk = FALSE;
+ heapshot_requested = 0;
+ last_hs_time = current_time ();
+ }
+ break;
+ case MONO_GC_EVENT_POST_START_WORLD_UNLOCKED:
+ /*
+ * Similarly, we must now make sure that any object moves
+ * written to the GC thread's buffer are flushed. Otherwise,
+ * object allocation events for certain addresses could come
+ * after the move events that made those addresses available.
+ */
+ sync_point_mark (SYNC_POINT_WORLD_START);
+
+ /*
+ * Finally, it is safe to allow other threads to write to
+ * their buffers again.
+ */
+ buffer_unlock_excl ();
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+gc_resize (MonoProfiler *profiler, int64_t new_size)
+{
+ ENTER_LOG (&gc_resizes_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* new size */
+ );
+
+ emit_event (logbuffer, TYPE_GC_RESIZE | TYPE_GC);
+ emit_value (logbuffer, new_size);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+
+typedef struct {
+ int count;
+ MonoMethod* methods [MAX_FRAMES];
+ int32_t il_offsets [MAX_FRAMES];
+ int32_t native_offsets [MAX_FRAMES];
+} FrameData;
+
+static int num_frames = MAX_FRAMES;
+
+static mono_bool
+walk_stack (MonoMethod *method, int32_t native_offset, int32_t il_offset, mono_bool managed, void* data)
+{
+ FrameData *frame = (FrameData *)data;
+ if (method && frame->count < num_frames) {
+ frame->il_offsets [frame->count] = il_offset;
+ frame->native_offsets [frame->count] = native_offset;
+ frame->methods [frame->count++] = method;
+ //printf ("In %d %s at %d (native: %d)\n", frame->count, mono_method_get_name (method), il_offset, native_offset);
+ }
+ return frame->count == num_frames;
+}
+
+/*
+ * a note about stack walks: they can cause more profiler events to fire,
+ * so we need to make sure they don't happen after we started emitting an
+ * event, hence the collect_bt/emit_bt split.
+ */
+static void
+collect_bt (FrameData *data)
+{
+ data->count = 0;
+ mono_stack_walk_no_il (walk_stack, data);
+}
+
+static void
+emit_bt (MonoProfiler *prof, LogBuffer *logbuffer, FrameData *data)
+{
+ /* FIXME: this is actually tons of data and we should
+ * just output it the first time and use an id the next
+ */
+ if (data->count > num_frames)
+ printf ("bad num frames: %d\n", data->count);
+ emit_value (logbuffer, data->count);
+ //if (*p != data.count) {
+ // printf ("bad num frames enc at %d: %d -> %d\n", count, data.count, *p); printf ("frames end: %p->%p\n", p, logbuffer->cursor); exit(0);}
+ while (data->count) {
+ emit_method (logbuffer, data->methods [--data->count]);
+ }
+}
+
+static void
+gc_alloc (MonoProfiler *prof, MonoObject *obj, MonoClass *klass)
+{
+ init_thread (prof, TRUE);
+
+ int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces) ? TYPE_ALLOC_BT : 0;
+ FrameData data;
+ uintptr_t len = mono_object_get_size (obj);
+ /* account for object alignment in the heap */
+ len += 7;
+ len &= ~7;
+
+ if (do_bt)
+ collect_bt (&data);
+
+ ENTER_LOG (&gc_allocs_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* klass */ +
+ LEB128_SIZE /* obj */ +
+ LEB128_SIZE /* size */ +
+ (do_bt ? (
+ LEB128_SIZE /* count */ +
+ data.count * (
+ LEB128_SIZE /* method */
+ )
+ ) : 0)
+ );
+
+ emit_event (logbuffer, do_bt | TYPE_ALLOC);
+ emit_ptr (logbuffer, klass);
+ emit_obj (logbuffer, obj);
+ emit_value (logbuffer, len);
+
+ if (do_bt)
+ emit_bt (prof, logbuffer, &data);
+
+ EXIT_LOG;
+}
+
+static void
+gc_moves (MonoProfiler *prof, void **objects, int num)
+{
+ ENTER_LOG (&gc_moves_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* num */ +
+ num * (
+ LEB128_SIZE /* object */
+ )
+ );
+
+ emit_event (logbuffer, TYPE_GC_MOVE | TYPE_GC);
+ emit_value (logbuffer, num);
+
+ for (int i = 0; i < num; ++i)
+ emit_obj (logbuffer, objects [i]);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+
+static void
+gc_handle (MonoProfiler *prof, int op, int type, uintptr_t handle, MonoObject *obj)
+{
+ int do_bt = nocalls && InterlockedRead (&runtime_inited) && !notraces;
+ FrameData data;
+
+ if (do_bt)
+ collect_bt (&data);
+
+ gint32 *ctr = op == MONO_PROFILER_GC_HANDLE_CREATED ? &gc_handle_creations_ctr : &gc_handle_deletions_ctr;
+
+ ENTER_LOG (ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* type */ +
+ LEB128_SIZE /* handle */ +
+ (op == MONO_PROFILER_GC_HANDLE_CREATED ? (
+ LEB128_SIZE /* obj */
+ ) : 0) +
+ (do_bt ? (
+ LEB128_SIZE /* count */ +
+ data.count * (
+ LEB128_SIZE /* method */
+ )
+ ) : 0)
+ );
+
+ if (op == MONO_PROFILER_GC_HANDLE_CREATED)
+ emit_event (logbuffer, (do_bt ? TYPE_GC_HANDLE_CREATED_BT : TYPE_GC_HANDLE_CREATED) | TYPE_GC);
+ else if (op == MONO_PROFILER_GC_HANDLE_DESTROYED)
+ emit_event (logbuffer, (do_bt ? TYPE_GC_HANDLE_DESTROYED_BT : TYPE_GC_HANDLE_DESTROYED) | TYPE_GC);
+ else
+ g_assert_not_reached ();
+
+ emit_value (logbuffer, type);
+ emit_value (logbuffer, handle);
+
+ if (op == MONO_PROFILER_GC_HANDLE_CREATED)
+ emit_obj (logbuffer, obj);
+
+ if (do_bt)
+ emit_bt (prof, logbuffer, &data);
+
+ EXIT_LOG;
+}
+
+static void
+finalize_begin (MonoProfiler *prof)
+{
+ ENTER_LOG (&finalize_begins_ctr, buf,
+ EVENT_SIZE /* event */
+ );
+
+ emit_event (buf, TYPE_GC_FINALIZE_START | TYPE_GC);
+
+ EXIT_LOG;
+}
+
+static void
+finalize_end (MonoProfiler *prof)
+{
+ ENTER_LOG (&finalize_ends_ctr, buf,
+ EVENT_SIZE /* event */
+ );
+
+ emit_event (buf, TYPE_GC_FINALIZE_END | TYPE_GC);
+
+ EXIT_LOG;
+}
+
+static void
+finalize_object_begin (MonoProfiler *prof, MonoObject *obj)
+{
+ ENTER_LOG (&finalize_object_begins_ctr, buf,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* obj */
+ );
+
+ emit_event (buf, TYPE_GC_FINALIZE_OBJECT_START | TYPE_GC);
+ emit_obj (buf, obj);
+
+ EXIT_LOG;
+}
+
+static void
+finalize_object_end (MonoProfiler *prof, MonoObject *obj)
+{
+ ENTER_LOG (&finalize_object_ends_ctr, buf,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* obj */
+ );
+
+ emit_event (buf, TYPE_GC_FINALIZE_OBJECT_END | TYPE_GC);
+ emit_obj (buf, obj);
+
+ EXIT_LOG;
+}
+
+static char*
+push_nesting (char *p, MonoClass *klass)
+{
+ MonoClass *nesting;
+ const char *name;
+ const char *nspace;
+ nesting = mono_class_get_nesting_type (klass);
+ if (nesting) {
+ p = push_nesting (p, nesting);
+ *p++ = '/';
+ *p = 0;
+ }
+ name = mono_class_get_name (klass);
+ nspace = mono_class_get_namespace (klass);
+ if (*nspace) {
+ strcpy (p, nspace);
+ p += strlen (nspace);
+ *p++ = '.';
+ *p = 0;
+ }
+ strcpy (p, name);
+ p += strlen (name);
+ return p;
+}
+
+static char*
+type_name (MonoClass *klass)
+{
+ char buf [1024];
+ char *p;
+ push_nesting (buf, klass);
+ p = (char *) g_malloc (strlen (buf) + 1);
+ strcpy (p, buf);
+ return p;
+}
+
+static void
+image_loaded (MonoProfiler *prof, MonoImage *image, int result)
+{
+ if (result != MONO_PROFILE_OK)
+ return;
+
+ const char *name = mono_image_get_filename (image);
+ int nlen = strlen (name) + 1;
+
+ ENTER_LOG (&image_loads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* image */ +
+ nlen /* name */
+ );
+
+ emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_IMAGE);
+ emit_ptr (logbuffer, image);
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG;
+}
+
+static void
+image_unloaded (MonoProfiler *prof, MonoImage *image)
+{
+ const char *name = mono_image_get_filename (image);
+ int nlen = strlen (name) + 1;
+
+ ENTER_LOG (&image_unloads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* image */ +
+ nlen /* name */
+ );
+
+ emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_IMAGE);
+ emit_ptr (logbuffer, image);
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG;
+}
+
+static void
+assembly_loaded (MonoProfiler *prof, MonoAssembly *assembly, int result)
+{
+ if (result != MONO_PROFILE_OK)
+ return;
+
+ char *name = mono_stringify_assembly_name (mono_assembly_get_name (assembly));
+ int nlen = strlen (name) + 1;
+
+ ENTER_LOG (&assembly_loads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* assembly */ +
+ nlen /* name */
+ );
+
+ emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_ASSEMBLY);
+ emit_ptr (logbuffer, assembly);
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG;
+
+ mono_free (name);
+}
+
+static void
+assembly_unloaded (MonoProfiler *prof, MonoAssembly *assembly)
+{
+ char *name = mono_stringify_assembly_name (mono_assembly_get_name (assembly));
+ int nlen = strlen (name) + 1;
+
+ ENTER_LOG (&assembly_unloads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* assembly */ +
+ nlen /* name */
+ );
+
+ emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_ASSEMBLY);
+ emit_ptr (logbuffer, assembly);
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG;
+
+ mono_free (name);
+}
+
+static void
+class_loaded (MonoProfiler *prof, MonoClass *klass, int result)
+{
+ if (result != MONO_PROFILE_OK)
+ return;
+
+ char *name;
+
+ if (InterlockedRead (&runtime_inited))
+ name = mono_type_get_name (mono_class_get_type (klass));
+ else
+ name = type_name (klass);
+
+ int nlen = strlen (name) + 1;
+ MonoImage *image = mono_class_get_image (klass);
+
+ ENTER_LOG (&class_loads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* klass */ +
+ LEB128_SIZE /* image */ +
+ nlen /* name */
+ );
+
+ emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_CLASS);
+ emit_ptr (logbuffer, klass);
+ emit_ptr (logbuffer, image);
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG;
+
+ if (runtime_inited)
+ mono_free (name);
+ else
+ g_free (name);
+}
+
+static void
+class_unloaded (MonoProfiler *prof, MonoClass *klass)
+{
+ char *name;
+
+ if (InterlockedRead (&runtime_inited))
+ name = mono_type_get_name (mono_class_get_type (klass));
+ else
+ name = type_name (klass);
+
+ int nlen = strlen (name) + 1;
+ MonoImage *image = mono_class_get_image (klass);
+
+ ENTER_LOG (&class_unloads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* klass */ +
+ LEB128_SIZE /* image */ +
+ nlen /* name */
+ );
+
+ emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_CLASS);
+ emit_ptr (logbuffer, klass);
+ emit_ptr (logbuffer, image);
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG;
+
+ if (runtime_inited)
+ mono_free (name);
+ else
+ g_free (name);
+}
+
+static void process_method_enter_coverage (MonoProfiler *prof, MonoMethod *method);
+
+static void
+method_enter (MonoProfiler *prof, MonoMethod *method)
+{
+ process_method_enter_coverage (prof, method);
+
+ if (!only_coverage && PROF_TLS_GET ()->call_depth++ <= max_call_depth) {
+ ENTER_LOG (&method_entries_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* method */
+ );
+
+ emit_event (logbuffer, TYPE_ENTER | TYPE_METHOD);
+ emit_method (logbuffer, method);
+
+ EXIT_LOG;
+ }
+}
+
+static void
+method_leave (MonoProfiler *prof, MonoMethod *method)
+{
+ if (!only_coverage && --PROF_TLS_GET ()->call_depth <= max_call_depth) {
+ ENTER_LOG (&method_exits_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* method */
+ );
+
+ emit_event (logbuffer, TYPE_LEAVE | TYPE_METHOD);
+ emit_method (logbuffer, method);
+
+ EXIT_LOG;
+ }
+}
+
+static void
+method_exc_leave (MonoProfiler *prof, MonoMethod *method)
+{
+ if (!only_coverage && !nocalls && --PROF_TLS_GET ()->call_depth <= max_call_depth) {
+ ENTER_LOG (&method_exception_exits_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* method */
+ );
+
+ emit_event (logbuffer, TYPE_EXC_LEAVE | TYPE_METHOD);
+ emit_method (logbuffer, method);
+
+ EXIT_LOG;
+ }
+}
+
+static void
+method_jitted (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *ji, int result)
+{
+ if (result != MONO_PROFILE_OK)
+ return;
+
+ register_method_local (method, ji);
+
+ process_requests ();
+}
+
+static void
+code_buffer_new (MonoProfiler *prof, void *buffer, int size, MonoProfilerCodeBufferType type, void *data)
+{
+ char *name;
+ int nlen;
+
+ if (type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE) {
+ name = (char *) data;
+ nlen = strlen (name) + 1;
+ } else {
+ name = NULL;
+ nlen = 0;
+ }
+
+ ENTER_LOG (&code_buffers_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* buffer */ +
+ LEB128_SIZE /* size */ +
+ (name ? (
+ nlen /* name */
+ ) : 0)
+ );
+
+ emit_event (logbuffer, TYPE_JITHELPER | TYPE_RUNTIME);
+ emit_byte (logbuffer, type);
+ emit_ptr (logbuffer, buffer);
+ emit_value (logbuffer, size);
+
+ if (name) {
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+ }
+
+ EXIT_LOG;
+}
+
+static void
+throw_exc (MonoProfiler *prof, MonoObject *object)
+{
+ int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces) ? TYPE_THROW_BT : 0;
+ FrameData data;
+
+ if (do_bt)
+ collect_bt (&data);
+
+ ENTER_LOG (&exception_throws_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* object */ +
+ (do_bt ? (
+ LEB128_SIZE /* count */ +
+ data.count * (
+ LEB128_SIZE /* method */
+ )
+ ) : 0)
+ );
+
+ emit_event (logbuffer, do_bt | TYPE_EXCEPTION);
+ emit_obj (logbuffer, object);
+
+ if (do_bt)
+ emit_bt (prof, logbuffer, &data);
+
+ EXIT_LOG;
+}
+
+static void
+clause_exc (MonoProfiler *prof, MonoMethod *method, int clause_type, int clause_num)
+{
+ ENTER_LOG (&exception_clauses_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* clause type */ +
+ LEB128_SIZE /* clause num */ +
+ LEB128_SIZE /* method */
+ );
+
+ emit_event (logbuffer, TYPE_EXCEPTION | TYPE_CLAUSE);
+ emit_byte (logbuffer, clause_type);
+ emit_value (logbuffer, clause_num);
+ emit_method (logbuffer, method);
+
+ EXIT_LOG;
+}
+
+static void
+monitor_event (MonoProfiler *profiler, MonoObject *object, MonoProfilerMonitorEvent event)
+{
+ int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces && event == MONO_PROFILER_MONITOR_CONTENTION) ? TYPE_MONITOR_BT : 0;
+ FrameData data;
+
+ if (do_bt)
+ collect_bt (&data);
+
+ gint32 *ctr;
+
+ switch (event) {
+ case MONO_PROFILER_MONITOR_CONTENTION:
+ ctr = &monitor_contentions_ctr;
+ break;
+ case MONO_PROFILER_MONITOR_DONE:
+ ctr = &monitor_acquisitions_ctr;
+ break;
+ case MONO_PROFILER_MONITOR_FAIL:
+ ctr = &monitor_failures_ctr;
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+
+ ENTER_LOG (ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* object */ +
+ (do_bt ? (
+ LEB128_SIZE /* count */ +
+ data.count * (
+ LEB128_SIZE /* method */
+ )
+ ) : 0)
+ );
+
+ emit_event (logbuffer, (event << 4) | do_bt | TYPE_MONITOR);
+ emit_obj (logbuffer, object);
+
+ if (do_bt)
+ emit_bt (profiler, logbuffer, &data);
+
+ EXIT_LOG;
+}
+
+static void
+thread_start (MonoProfiler *prof, uintptr_t tid)
+{
+ init_thread (prof, TRUE);
+
+ ENTER_LOG (&thread_starts_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* tid */
+ );
+
+ emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_THREAD);
+ emit_ptr (logbuffer, (void*) tid);
+
+ EXIT_LOG;
+}
+
+static void
+thread_end (MonoProfiler *prof, uintptr_t tid)
+{
+ ENTER_LOG (&thread_ends_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* tid */
+ );
+
+ emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_THREAD);
+ emit_ptr (logbuffer, (void*) tid);
+
+ EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
+
+ MonoProfilerThread *thread = PROF_TLS_GET ();
+
+ thread->ended = TRUE;
+ remove_thread (thread);
+
+ PROF_TLS_SET (NULL);
+}
+
+static void
+thread_name (MonoProfiler *prof, uintptr_t tid, const char *name)
+{
+ int len = strlen (name) + 1;
+
+ ENTER_LOG (&thread_names_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* tid */ +
+ len /* name */
+ );
+
+ emit_event (logbuffer, TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_THREAD);
+ emit_ptr (logbuffer, (void*)tid);
+ memcpy (logbuffer->cursor, name, len);
+ logbuffer->cursor += len;
+
+ EXIT_LOG;
+}
+
+static void
+domain_loaded (MonoProfiler *prof, MonoDomain *domain, int result)
+{
+ if (result != MONO_PROFILE_OK)
+ return;
+
+ ENTER_LOG (&domain_loads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* domain id */
+ );
+
+ emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_DOMAIN);
+ emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
+
+ EXIT_LOG;
+}
+
+static void
+domain_unloaded (MonoProfiler *prof, MonoDomain *domain)
+{
+ ENTER_LOG (&domain_unloads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* domain id */
+ );
+
+ emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_DOMAIN);
+ emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
+
+ EXIT_LOG;
+}
+
+static void
+domain_name (MonoProfiler *prof, MonoDomain *domain, const char *name)
+{
+ int nlen = strlen (name) + 1;
+
+ ENTER_LOG (&domain_names_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* domain id */ +
+ nlen /* name */
+ );
+
+ emit_event (logbuffer, TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_DOMAIN);
+ emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG;
+}
+
+static void
+context_loaded (MonoProfiler *prof, MonoAppContext *context)
+{
+ ENTER_LOG (&context_loads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* context id */ +
+ LEB128_SIZE /* domain id */
+ );
+
+ emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_CONTEXT);
+ emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_id (context));
+ emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_domain_id (context));
+
+ EXIT_LOG;
+}
+
+static void
+context_unloaded (MonoProfiler *prof, MonoAppContext *context)
+{
+ ENTER_LOG (&context_unloads_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* context id */ +
+ LEB128_SIZE /* domain id */
+ );
+
+ emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
+ emit_byte (logbuffer, TYPE_CONTEXT);
+ emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_id (context));
+ emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_domain_id (context));
+
+ EXIT_LOG;
+}
+
+typedef struct {
+ MonoMethod *method;
+ MonoDomain *domain;
+ void *base_address;
+ int offset;
+} AsyncFrameInfo;
+
+typedef struct {
+ MonoLockFreeQueueNode node;
+ MonoProfiler *prof;
+ uint64_t time;
+ uintptr_t tid;
+ void *ip;
+ int count;
+ AsyncFrameInfo frames [MONO_ZERO_LEN_ARRAY];
+} SampleHit;
+
+static mono_bool
+async_walk_stack (MonoMethod *method, MonoDomain *domain, void *base_address, int offset, void *data)
+{
+ SampleHit *sample = (SampleHit *) data;
+
+ if (sample->count < num_frames) {
+ int i = sample->count;
+
+ sample->frames [i].method = method;
+ sample->frames [i].domain = domain;
+ sample->frames [i].base_address = base_address;
+ sample->frames [i].offset = offset;
+
+ sample->count++;
+ }
+
+ return sample->count == num_frames;
+}
+
+#define SAMPLE_SLOT_SIZE(FRAMES) (sizeof (SampleHit) + sizeof (AsyncFrameInfo) * (FRAMES - MONO_ZERO_LEN_ARRAY))
+#define SAMPLE_BLOCK_SIZE (mono_pagesize ())
+
+static void
+enqueue_sample_hit (gpointer p)
+{
+ SampleHit *sample = p;
+
+ mono_lock_free_queue_node_unpoison (&sample->node);
+ mono_lock_free_queue_enqueue (&sample->prof->dumper_queue, &sample->node);
+ mono_os_sem_post (&sample->prof->dumper_queue_sem);
+}
+
+static void
+mono_sample_hit (MonoProfiler *profiler, unsigned char *ip, void *context)
+{
+ /*
+ * Please note: We rely on the runtime loading the profiler with
+ * MONO_DL_EAGER (RTLD_NOW) so that references to runtime functions within
+ * this function (and its siblings) are resolved when the profiler is
+ * loaded. Otherwise, we would potentially invoke the dynamic linker when
+ * invoking runtime functions, which is not async-signal-safe.
+ */
+
+ if (InterlockedRead (&in_shutdown))
+ return;
+
+ SampleHit *sample = (SampleHit *) mono_lock_free_queue_dequeue (&profiler->sample_reuse_queue);
+
+ if (!sample) {
+ /*
+ * If we're out of reusable sample events and we're not allowed to
+ * allocate more, we have no choice but to drop the event.
+ */
+ if (InterlockedRead (&sample_allocations_ctr) >= max_allocated_sample_hits)
+ return;
+
+ sample = mono_lock_free_alloc (&profiler->sample_allocator);
+ sample->prof = profiler;
+ mono_lock_free_queue_node_init (&sample->node, TRUE);
+
+ InterlockedIncrement (&sample_allocations_ctr);
+ }
+
+ sample->count = 0;
+ mono_stack_walk_async_safe (&async_walk_stack, context, sample);
+
+ sample->time = current_time ();
+ sample->tid = thread_id ();
+ sample->ip = ip;
+
+ mono_thread_hazardous_try_free (sample, enqueue_sample_hit);
+}
+
+static uintptr_t *code_pages = 0;
+static int num_code_pages = 0;
+static int size_code_pages = 0;
+#define CPAGE_SHIFT (9)
+#define CPAGE_SIZE (1 << CPAGE_SHIFT)
+#define CPAGE_MASK (~(CPAGE_SIZE - 1))
+#define CPAGE_ADDR(p) ((p) & CPAGE_MASK)
+
+static uintptr_t
+add_code_page (uintptr_t *hash, uintptr_t hsize, uintptr_t page)
+{
+ uintptr_t i;
+ uintptr_t start_pos;
+ start_pos = (page >> CPAGE_SHIFT) % hsize;
+ i = start_pos;
+ do {
+ if (hash [i] && CPAGE_ADDR (hash [i]) == CPAGE_ADDR (page)) {
+ return 0;
+ } else if (!hash [i]) {
+ hash [i] = page;
+ return 1;
+ }
+ /* wrap around */
+ if (++i == hsize)
+ i = 0;
+ } while (i != start_pos);
+ /* should not happen */
+ printf ("failed code page store\n");
+ return 0;
+}
+
+static void
+add_code_pointer (uintptr_t ip)
+{
+ uintptr_t i;
+ if (num_code_pages * 2 >= size_code_pages) {
+ uintptr_t *n;
+ uintptr_t old_size = size_code_pages;
+ size_code_pages *= 2;
+ if (size_code_pages == 0)
+ size_code_pages = 16;
+ n = (uintptr_t *) g_calloc (sizeof (uintptr_t) * size_code_pages, 1);
+ for (i = 0; i < old_size; ++i) {
+ if (code_pages [i])
+ add_code_page (n, size_code_pages, code_pages [i]);
+ }
+ if (code_pages)
+ g_free (code_pages);
+ code_pages = n;
+ }
+ num_code_pages += add_code_page (code_pages, size_code_pages, ip & CPAGE_MASK);
+}
+
+/* ELF code crashes on some systems. */
+//#if defined(HAVE_DL_ITERATE_PHDR) && defined(ELFMAG0)
+#if 0
+static void
+dump_ubin (MonoProfiler *prof, const char *filename, uintptr_t load_addr, uint64_t offset, uintptr_t size)
+{
+ int len = strlen (filename) + 1;
+
+ ENTER_LOG (&sample_ubins_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* load address */ +
+ LEB128_SIZE /* offset */ +
+ LEB128_SIZE /* size */ +
+ nlen /* file name */
+ );
+
+ emit_event (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_UBIN);
+ emit_svalue (logbuffer, load_addr);
+ emit_uvalue (logbuffer, offset);
+ emit_uvalue (logbuffer, size);
+ memcpy (logbuffer->cursor, filename, len);
+ logbuffer->cursor += len;
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+#endif
+
+static void
+dump_usym (MonoProfiler *prof, const char *name, uintptr_t value, uintptr_t size)
+{
+ int len = strlen (name) + 1;
+
+ ENTER_LOG (&sample_usyms_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* value */ +
+ LEB128_SIZE /* size */ +
+ len /* name */
+ );
+
+ emit_event (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_USYM);
+ emit_ptr (logbuffer, (void*)value);
+ emit_value (logbuffer, size);
+ memcpy (logbuffer->cursor, name, len);
+ logbuffer->cursor += len;
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+
+/* ELF code crashes on some systems. */
+//#if defined(ELFMAG0)
+#if 0
+
+#if SIZEOF_VOID_P == 4
+#define ELF_WSIZE 32
+#else
+#define ELF_WSIZE 64
+#endif
+#ifndef ElfW
+#define ElfW(type) _ElfW (Elf, ELF_WSIZE, type)
+#define _ElfW(e,w,t) _ElfW_1 (e, w, _##t)
+#define _ElfW_1(e,w,t) e##w##t
+#endif
+
+static void
+dump_elf_symbols (MonoProfiler *prof, ElfW(Sym) *symbols, int num_symbols, const char *strtab, void *load_addr)
+{
+ int i;
+ for (i = 0; i < num_symbols; ++i) {
+ const char* sym;
+ sym = strtab + symbols [i].st_name;
+ if (!symbols [i].st_name || !symbols [i].st_size || (symbols [i].st_info & 0xf) != STT_FUNC)
+ continue;
+ //printf ("symbol %s at %d\n", sym, symbols [i].st_value);
+ dump_usym (sym, (uintptr_t)load_addr + symbols [i].st_value, symbols [i].st_size);
+ }
+}
+
+static int
+read_elf_symbols (MonoProfiler *prof, const char *filename, void *load_addr)
+{
+ int fd, i;
+ void *data;
+ struct stat statb;
+ uint64_t file_size;
+ ElfW(Ehdr) *header;
+ ElfW(Shdr) *sheader;
+ ElfW(Shdr) *shstrtabh;
+ ElfW(Shdr) *symtabh = NULL;
+ ElfW(Shdr) *strtabh = NULL;
+ ElfW(Sym) *symbols = NULL;
+ const char *strtab;
+ int num_symbols;
+
+ fd = open (filename, O_RDONLY);
+ if (fd < 0)
+ return 0;
+ if (fstat (fd, &statb) != 0) {
+ close (fd);
+ return 0;
+ }
+ file_size = statb.st_size;
+ data = mmap (NULL, file_size, PROT_READ, MAP_PRIVATE, fd, 0);
+ close (fd);
+ if (data == MAP_FAILED)
+ return 0;
+ header = data;
+ if (header->e_ident [EI_MAG0] != ELFMAG0 ||
+ header->e_ident [EI_MAG1] != ELFMAG1 ||
+ header->e_ident [EI_MAG2] != ELFMAG2 ||
+ header->e_ident [EI_MAG3] != ELFMAG3 ) {
+ munmap (data, file_size);
+ return 0;
+ }
+ sheader = (void*)((char*)data + header->e_shoff);
+ shstrtabh = (void*)((char*)sheader + (header->e_shentsize * header->e_shstrndx));
+ strtab = (const char*)data + shstrtabh->sh_offset;
+ for (i = 0; i < header->e_shnum; ++i) {
+ //printf ("section header: %d\n", sheader->sh_type);
+ if (sheader->sh_type == SHT_SYMTAB) {
+ symtabh = sheader;
+ strtabh = (void*)((char*)data + header->e_shoff + sheader->sh_link * header->e_shentsize);
+ /*printf ("symtab section header: %d, .strstr: %d\n", i, sheader->sh_link);*/
+ break;
+ }
+ sheader = (void*)((char*)sheader + header->e_shentsize);
+ }
+ if (!symtabh || !strtabh) {
+ munmap (data, file_size);
+ return 0;
+ }
+ strtab = (const char*)data + strtabh->sh_offset;
+ num_symbols = symtabh->sh_size / symtabh->sh_entsize;
+ symbols = (void*)((char*)data + symtabh->sh_offset);
+ dump_elf_symbols (symbols, num_symbols, strtab, load_addr);
+ munmap (data, file_size);
+ return 1;
+}
+#endif
+
+/* ELF code crashes on some systems. */
+//#if defined(HAVE_DL_ITERATE_PHDR) && defined(ELFMAG0)
+#if 0
+static int
+elf_dl_callback (struct dl_phdr_info *info, size_t size, void *data)
+{
+ MonoProfiler *prof = data;
+ char buf [256];
+ const char *filename;
+ BinaryObject *obj;
+ char *a = (void*)info->dlpi_addr;
+ int i, num_sym;
+ ElfW(Dyn) *dyn = NULL;
+ ElfW(Sym) *symtab = NULL;
+ ElfW(Word) *hash_table = NULL;
+ ElfW(Ehdr) *header = NULL;
+ const char* strtab = NULL;
+ for (obj = prof->binary_objects; obj; obj = obj->next) {
+ if (obj->addr == a)
+ return 0;
+ }
+ filename = info->dlpi_name;
+ if (!filename)
+ return 0;
+ if (!info->dlpi_addr && !filename [0]) {
+ int l = readlink ("/proc/self/exe", buf, sizeof (buf) - 1);
+ if (l > 0) {
+ buf [l] = 0;
+ filename = buf;
+ }
+ }
+ obj = g_calloc (sizeof (BinaryObject), 1);
+ obj->addr = (void*)info->dlpi_addr;
+ obj->name = pstrdup (filename);
+ obj->next = prof->binary_objects;
+ prof->binary_objects = obj;
+ //printf ("loaded file: %s at %p, segments: %d\n", filename, (void*)info->dlpi_addr, info->dlpi_phnum);
+ a = NULL;
+ for (i = 0; i < info->dlpi_phnum; ++i) {
+ //printf ("segment type %d file offset: %d, size: %d\n", info->dlpi_phdr[i].p_type, info->dlpi_phdr[i].p_offset, info->dlpi_phdr[i].p_memsz);
+ if (info->dlpi_phdr[i].p_type == PT_LOAD && !header) {
+ header = (ElfW(Ehdr)*)(info->dlpi_addr + info->dlpi_phdr[i].p_vaddr);
+ if (header->e_ident [EI_MAG0] != ELFMAG0 ||
+ header->e_ident [EI_MAG1] != ELFMAG1 ||
+ header->e_ident [EI_MAG2] != ELFMAG2 ||
+ header->e_ident [EI_MAG3] != ELFMAG3 ) {
+ header = NULL;
+ }
+ dump_ubin (prof, filename, info->dlpi_addr + info->dlpi_phdr[i].p_vaddr, info->dlpi_phdr[i].p_offset, info->dlpi_phdr[i].p_memsz);
+ } else if (info->dlpi_phdr[i].p_type == PT_DYNAMIC) {
+ dyn = (ElfW(Dyn) *)(info->dlpi_addr + info->dlpi_phdr[i].p_vaddr);
+ }
+ }
+ if (read_elf_symbols (prof, filename, (void*)info->dlpi_addr))
+ return 0;
+ if (!info->dlpi_name || !info->dlpi_name[0])
+ return 0;
+ if (!dyn)
+ return 0;
+ for (i = 0; dyn [i].d_tag != DT_NULL; ++i) {
+ if (dyn [i].d_tag == DT_SYMTAB) {
+ if (symtab && do_debug)
+ printf ("multiple symtabs: %d\n", i);
+ symtab = (ElfW(Sym) *)(a + dyn [i].d_un.d_ptr);
+ } else if (dyn [i].d_tag == DT_HASH) {
+ hash_table = (ElfW(Word) *)(a + dyn [i].d_un.d_ptr);
+ } else if (dyn [i].d_tag == DT_STRTAB) {
+ strtab = (const char*)(a + dyn [i].d_un.d_ptr);
+ }
+ }
+ if (!hash_table)
+ return 0;
+ num_sym = hash_table [1];
+ dump_elf_symbols (prof, symtab, num_sym, strtab, (void*)info->dlpi_addr);
+ return 0;
+}
+
+static int
+load_binaries (MonoProfiler *prof)
+{
+ dl_iterate_phdr (elf_dl_callback, prof);
+ return 1;
+}
+#else
+static int
+load_binaries (MonoProfiler *prof)
+{
+ return 0;
+}
+#endif
+
+static const char*
+symbol_for (uintptr_t code)
+{
+#ifdef HAVE_DLADDR
+ void *ip = (void*)code;
+ Dl_info di;
+ if (dladdr (ip, &di)) {
+ if (di.dli_sname)
+ return di.dli_sname;
+ } else {
+ /* char **names;
+ names = backtrace_symbols (&ip, 1);
+ if (names) {
+ const char* p = names [0];
+ g_free (names);
+ return p;
+ }
+ */
+ }
+#endif
+ return NULL;
+}
+
+static void
+dump_unmanaged_coderefs (MonoProfiler *prof)
+{
+ int i;
+ const char* last_symbol;
+ uintptr_t addr, page_end;
+
+ if (load_binaries (prof))
+ return;
+ for (i = 0; i < size_code_pages; ++i) {
+ const char* sym;
+ if (!code_pages [i] || code_pages [i] & 1)
+ continue;
+ last_symbol = NULL;
+ addr = CPAGE_ADDR (code_pages [i]);
+ page_end = addr + CPAGE_SIZE;
+ code_pages [i] |= 1;
+ /* we dump the symbols for the whole page */
+ for (; addr < page_end; addr += 16) {
+ sym = symbol_for (addr);
+ if (sym && sym == last_symbol)
+ continue;
+ last_symbol = sym;
+ if (!sym)
+ continue;
+ dump_usym (prof, sym, addr, 0); /* let's not guess the size */
+ //printf ("found symbol at %p: %s\n", (void*)addr, sym);
+ }
+ }
+}
+
+typedef struct MonoCounterAgent {
+ MonoCounter *counter;
+ // MonoCounterAgent specific data :
+ void *value;
+ size_t value_size;
+ short index;
+ short emitted;
+ struct MonoCounterAgent *next;
+} MonoCounterAgent;
+
+static MonoCounterAgent* counters;
+static int counters_index = 1;
+static mono_mutex_t counters_mutex;
+
+static void
+counters_add_agent (MonoCounter *counter)
+{
+ if (InterlockedRead (&in_shutdown))
+ return;
+
+ MonoCounterAgent *agent, *item;
+
+ mono_os_mutex_lock (&counters_mutex);
+
+ for (agent = counters; agent; agent = agent->next) {
+ if (agent->counter == counter) {
+ agent->value_size = 0;
+ if (agent->value) {
+ g_free (agent->value);
+ agent->value = NULL;
+ }
+ goto done;
+ }
+ }
+
+ agent = (MonoCounterAgent *) g_malloc (sizeof (MonoCounterAgent));
+ agent->counter = counter;
+ agent->value = NULL;
+ agent->value_size = 0;
+ agent->index = counters_index++;
+ agent->emitted = 0;
+ agent->next = NULL;
+
+ if (!counters) {
+ counters = agent;
+ } else {
+ item = counters;
+ while (item->next)
+ item = item->next;
+ item->next = agent;
+ }
+
+done:
+ mono_os_mutex_unlock (&counters_mutex);
+}
+
+static mono_bool
+counters_init_foreach_callback (MonoCounter *counter, gpointer data)
+{
+ counters_add_agent (counter);
+ return TRUE;
+}
+
+static void
+counters_init (MonoProfiler *profiler)
+{
+ mono_os_mutex_init (&counters_mutex);
+
+ mono_counters_on_register (&counters_add_agent);
+ mono_counters_foreach (counters_init_foreach_callback, NULL);
+}
+
+static void
+counters_emit (MonoProfiler *profiler)
+{
+ MonoCounterAgent *agent;
+ int len = 0;
+ int size =
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* len */
+ ;
+
+ mono_os_mutex_lock (&counters_mutex);
+
+ for (agent = counters; agent; agent = agent->next) {
+ if (agent->emitted)
+ continue;
+
+ size +=
+ LEB128_SIZE /* section */ +
+ strlen (mono_counter_get_name (agent->counter)) + 1 /* name */ +
+ BYTE_SIZE /* type */ +
+ BYTE_SIZE /* unit */ +
+ BYTE_SIZE /* variance */ +
+ LEB128_SIZE /* index */
+ ;
+
+ len++;
+ }
+
+ if (!len)
+ goto done;
+
+ ENTER_LOG (&counter_descriptors_ctr, logbuffer, size);
+
+ emit_event (logbuffer, TYPE_SAMPLE_COUNTERS_DESC | TYPE_SAMPLE);
+ emit_value (logbuffer, len);
+
+ for (agent = counters; agent; agent = agent->next) {
+ const char *name;
+
+ if (agent->emitted)
+ continue;
+
+ name = mono_counter_get_name (agent->counter);
+ emit_value (logbuffer, mono_counter_get_section (agent->counter));
+ emit_string (logbuffer, name, strlen (name) + 1);
+ emit_byte (logbuffer, mono_counter_get_type (agent->counter));
+ emit_byte (logbuffer, mono_counter_get_unit (agent->counter));
+ emit_byte (logbuffer, mono_counter_get_variance (agent->counter));
+ emit_value (logbuffer, agent->index);
+
+ agent->emitted = 1;
+ }
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+done:
+ mono_os_mutex_unlock (&counters_mutex);
+}
+
+static void
+counters_sample (MonoProfiler *profiler, uint64_t timestamp)
+{
+ MonoCounterAgent *agent;
+ MonoCounter *counter;
+ int type;
+ int buffer_size;
+ void *buffer;
+ int size;
+
+ counters_emit (profiler);
+
+ buffer_size = 8;
+ buffer = g_calloc (1, buffer_size);
+
+ mono_os_mutex_lock (&counters_mutex);
+
+ size =
+ EVENT_SIZE /* event */
+ ;
+
+ for (agent = counters; agent; agent = agent->next) {
+ size +=
+ LEB128_SIZE /* index */ +
+ BYTE_SIZE /* type */ +
+ mono_counter_get_size (agent->counter) /* value */
+ ;
+ }
+
+ size +=
+ LEB128_SIZE /* stop marker */
+ ;
+
+ ENTER_LOG (&counter_samples_ctr, logbuffer, size);
+
+ emit_event_time (logbuffer, TYPE_SAMPLE_COUNTERS | TYPE_SAMPLE, timestamp);
+
+ for (agent = counters; agent; agent = agent->next) {
+ size_t size;
+
+ counter = agent->counter;
+
+ size = mono_counter_get_size (counter);
+
+ if (size > buffer_size) {
+ buffer_size = size;
+ buffer = g_realloc (buffer, buffer_size);
+ }
+
+ memset (buffer, 0, buffer_size);
+
+ g_assert (mono_counters_sample (counter, buffer, size));
+
+ type = mono_counter_get_type (counter);
+
+ if (!agent->value) {
+ agent->value = g_calloc (1, size);
+ agent->value_size = size;
+ } else {
+ if (type == MONO_COUNTER_STRING) {
+ if (strcmp (agent->value, buffer) == 0)
+ continue;
+ } else {
+ if (agent->value_size == size && memcmp (agent->value, buffer, size) == 0)
+ continue;
+ }
+ }
+
+ emit_uvalue (logbuffer, agent->index);
+ emit_byte (logbuffer, type);
+ switch (type) {
+ case MONO_COUNTER_INT:
+#if SIZEOF_VOID_P == 4
+ case MONO_COUNTER_WORD:
+#endif
+ emit_svalue (logbuffer, *(int*)buffer - *(int*)agent->value);
+ break;
+ case MONO_COUNTER_UINT:
+ emit_uvalue (logbuffer, *(guint*)buffer - *(guint*)agent->value);
+ break;
+ case MONO_COUNTER_TIME_INTERVAL:
+ case MONO_COUNTER_LONG:
+#if SIZEOF_VOID_P == 8
+ case MONO_COUNTER_WORD:
+#endif
+ emit_svalue (logbuffer, *(gint64*)buffer - *(gint64*)agent->value);
+ break;
+ case MONO_COUNTER_ULONG:
+ emit_uvalue (logbuffer, *(guint64*)buffer - *(guint64*)agent->value);
+ break;
+ case MONO_COUNTER_DOUBLE:
+ emit_double (logbuffer, *(double*)buffer);
+ break;
+ case MONO_COUNTER_STRING:
+ if (size == 0) {
+ emit_byte (logbuffer, 0);
+ } else {
+ emit_byte (logbuffer, 1);
+ emit_string (logbuffer, (char*)buffer, size);
+ }
+ break;
+ default:
+ g_assert_not_reached ();
+ }
+
+ if (type == MONO_COUNTER_STRING && size > agent->value_size) {
+ agent->value = g_realloc (agent->value, size);
+ agent->value_size = size;
+ }
+
+ if (size > 0)
+ memcpy (agent->value, buffer, size);
+ }
+ g_free (buffer);
+
+ emit_value (logbuffer, 0);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+ mono_os_mutex_unlock (&counters_mutex);
+}
+
+typedef struct _PerfCounterAgent PerfCounterAgent;
+struct _PerfCounterAgent {
+ PerfCounterAgent *next;
+ int index;
+ char *category_name;
+ char *name;
+ int type;
+ gint64 value;
+ guint8 emitted;
+ guint8 updated;
+ guint8 deleted;
+};
+
+static PerfCounterAgent *perfcounters = NULL;
+
+static void
+perfcounters_emit (MonoProfiler *profiler)
+{
+ PerfCounterAgent *pcagent;
+ int len = 0;
+ int size =
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* len */
+ ;
+
+ for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
+ if (pcagent->emitted)
+ continue;
+
+ size +=
+ LEB128_SIZE /* section */ +
+ strlen (pcagent->category_name) + 1 /* category name */ +
+ strlen (pcagent->name) + 1 /* name */ +
+ BYTE_SIZE /* type */ +
+ BYTE_SIZE /* unit */ +
+ BYTE_SIZE /* variance */ +
+ LEB128_SIZE /* index */
+ ;
+
+ len++;
+ }
+
+ if (!len)
+ return;
+
+ ENTER_LOG (&perfcounter_descriptors_ctr, logbuffer, size);
+
+ emit_event (logbuffer, TYPE_SAMPLE_COUNTERS_DESC | TYPE_SAMPLE);
+ emit_value (logbuffer, len);
+
+ for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
+ if (pcagent->emitted)
+ continue;
+
+ emit_value (logbuffer, MONO_COUNTER_PERFCOUNTERS);
+ emit_string (logbuffer, pcagent->category_name, strlen (pcagent->category_name) + 1);
+ emit_string (logbuffer, pcagent->name, strlen (pcagent->name) + 1);
+ emit_byte (logbuffer, MONO_COUNTER_LONG);
+ emit_byte (logbuffer, MONO_COUNTER_RAW);
+ emit_byte (logbuffer, MONO_COUNTER_VARIABLE);
+ emit_value (logbuffer, pcagent->index);
+
+ pcagent->emitted = 1;
+ }
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+
+static gboolean
+perfcounters_foreach (char *category_name, char *name, unsigned char type, gint64 value, gpointer user_data)
+{
+ PerfCounterAgent *pcagent;
+
+ for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
+ if (strcmp (pcagent->category_name, category_name) != 0 || strcmp (pcagent->name, name) != 0)
+ continue;
+ if (pcagent->value == value)
+ return TRUE;
+
+ pcagent->value = value;
+ pcagent->updated = 1;
+ pcagent->deleted = 0;
+ return TRUE;
+ }
+
+ pcagent = g_new0 (PerfCounterAgent, 1);
+ pcagent->next = perfcounters;
+ pcagent->index = counters_index++;
+ pcagent->category_name = g_strdup (category_name);
+ pcagent->name = g_strdup (name);
+ pcagent->type = (int) type;
+ pcagent->value = value;
+ pcagent->emitted = 0;
+ pcagent->updated = 1;
+ pcagent->deleted = 0;
+
+ perfcounters = pcagent;
+
+ return TRUE;
+}
+
+static void
+perfcounters_sample (MonoProfiler *profiler, uint64_t timestamp)
+{
+ PerfCounterAgent *pcagent;
+ int len = 0;
+ int size;
+
+ mono_os_mutex_lock (&counters_mutex);
+
+ /* mark all perfcounters as deleted, foreach will unmark them as necessary */
+ for (pcagent = perfcounters; pcagent; pcagent = pcagent->next)
+ pcagent->deleted = 1;
+
+ mono_perfcounter_foreach (perfcounters_foreach, perfcounters);
+
+ perfcounters_emit (profiler);
+
+ size =
+ EVENT_SIZE /* event */
+ ;
+
+ for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
+ if (pcagent->deleted || !pcagent->updated)
+ continue;
+
+ size +=
+ LEB128_SIZE /* index */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* value */
+ ;
+
+ len++;
+ }
+
+ if (!len)
+ goto done;
+
+ size +=
+ LEB128_SIZE /* stop marker */
+ ;
+
+ ENTER_LOG (&perfcounter_samples_ctr, logbuffer, size);
+
+ emit_event_time (logbuffer, TYPE_SAMPLE_COUNTERS | TYPE_SAMPLE, timestamp);
+
+ for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
+ if (pcagent->deleted || !pcagent->updated)
+ continue;
+ emit_uvalue (logbuffer, pcagent->index);
+ emit_byte (logbuffer, MONO_COUNTER_LONG);
+ emit_svalue (logbuffer, pcagent->value);
+
+ pcagent->updated = 0;
+ }
+
+ emit_value (logbuffer, 0);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+done:
+ mono_os_mutex_unlock (&counters_mutex);
+}
+
+static void
+counters_and_perfcounters_sample (MonoProfiler *prof)
+{
+ uint64_t now = current_time ();
+
+ counters_sample (prof, now);
+ perfcounters_sample (prof, now);
+}
+
+#define COVERAGE_DEBUG(x) if (debug_coverage) {x}
+static mono_mutex_t coverage_mutex;
+static MonoConcurrentHashTable *coverage_methods = NULL;
+static MonoConcurrentHashTable *coverage_assemblies = NULL;
+static MonoConcurrentHashTable *coverage_classes = NULL;
+
+static MonoConcurrentHashTable *filtered_classes = NULL;
+static MonoConcurrentHashTable *entered_methods = NULL;
+static MonoConcurrentHashTable *image_to_methods = NULL;
+static MonoConcurrentHashTable *suppressed_assemblies = NULL;
+static gboolean coverage_initialized = FALSE;
+
+static GPtrArray *coverage_data = NULL;
+static int previous_offset = 0;
+
+typedef struct {
+ MonoLockFreeQueueNode node;
+ MonoMethod *method;
+} MethodNode;
+
+typedef struct {
+ int offset;
+ int counter;
+ char *filename;
+ int line;
+ int column;
+} CoverageEntry;
+
+static void
+free_coverage_entry (gpointer data, gpointer userdata)
+{
+ CoverageEntry *entry = (CoverageEntry *)data;
+ g_free (entry->filename);
+ g_free (entry);
+}
+
+static void
+obtain_coverage_for_method (MonoProfiler *prof, const MonoProfileCoverageEntry *entry)
+{
+ int offset = entry->iloffset - previous_offset;
+ CoverageEntry *e = g_new (CoverageEntry, 1);
+
+ previous_offset = entry->iloffset;
+
+ e->offset = offset;
+ e->counter = entry->counter;
+ e->filename = g_strdup(entry->filename ? entry->filename : "");
+ e->line = entry->line;
+ e->column = entry->col;
+
+ g_ptr_array_add (coverage_data, e);
+}
+
+static char *
+parse_generic_type_names(char *name)
+{
+ char *new_name, *ret;
+ int within_generic_declaration = 0, generic_members = 1;
+
+ if (name == NULL || *name == '\0')
+ return g_strdup ("");
+
+ if (!(ret = new_name = (char *) g_calloc (strlen (name) * 4 + 1, sizeof (char))))
+ return NULL;
+
+ do {
+ switch (*name) {
+ case '<':
+ within_generic_declaration = 1;
+ break;
+
+ case '>':
+ within_generic_declaration = 0;
+
+ if (*(name - 1) != '<') {
+ *new_name++ = '`';
+ *new_name++ = '0' + generic_members;
+ } else {
+ memcpy (new_name, "<>", 8);
+ new_name += 8;
+ }
+
+ generic_members = 0;
+ break;
+
+ case ',':
+ generic_members++;
+ break;
+
+ default:
+ if (!within_generic_declaration)
+ *new_name++ = *name;
+
+ break;
+ }
+ } while (*name++);
+
+ return ret;
+}
+
+static int method_id;
+static void
+build_method_buffer (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoMethod *method = (MonoMethod *)value;
+ MonoProfiler *prof = (MonoProfiler *)userdata;
+ MonoClass *klass;
+ MonoImage *image;
+ char *class_name;
+ const char *image_name, *method_name, *sig, *first_filename;
+ guint i;
+
+ previous_offset = 0;
+ coverage_data = g_ptr_array_new ();
+
+ mono_profiler_coverage_get (prof, method, obtain_coverage_for_method);
+
+ klass = mono_method_get_class (method);
+ image = mono_class_get_image (klass);
+ image_name = mono_image_get_name (image);
+
+ sig = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ class_name = parse_generic_type_names (mono_type_get_name (mono_class_get_type (klass)));
+ method_name = mono_method_get_name (method);
+
+ if (coverage_data->len != 0) {
+ CoverageEntry *entry = (CoverageEntry *)coverage_data->pdata[0];
+ first_filename = entry->filename ? entry->filename : "";
+ } else
+ first_filename = "";
+
+ image_name = image_name ? image_name : "";
+ sig = sig ? sig : "";
+ method_name = method_name ? method_name : "";
+
+ ENTER_LOG (&coverage_methods_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ strlen (image_name) + 1 /* image name */ +
+ strlen (class_name) + 1 /* class name */ +
+ strlen (method_name) + 1 /* method name */ +
+ strlen (sig) + 1 /* signature */ +
+ strlen (first_filename) + 1 /* first file name */ +
+ LEB128_SIZE /* token */ +
+ LEB128_SIZE /* method id */ +
+ LEB128_SIZE /* entries */
+ );
+
+ emit_event (logbuffer, TYPE_COVERAGE_METHOD | TYPE_COVERAGE);
+ emit_string (logbuffer, image_name, strlen (image_name) + 1);
+ emit_string (logbuffer, class_name, strlen (class_name) + 1);
+ emit_string (logbuffer, method_name, strlen (method_name) + 1);
+ emit_string (logbuffer, sig, strlen (sig) + 1);
+ emit_string (logbuffer, first_filename, strlen (first_filename) + 1);
+
+ emit_uvalue (logbuffer, mono_method_get_token (method));
+ emit_uvalue (logbuffer, method_id);
+ emit_value (logbuffer, coverage_data->len);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+ for (i = 0; i < coverage_data->len; i++) {
+ CoverageEntry *entry = (CoverageEntry *)coverage_data->pdata[i];
+
+ ENTER_LOG (&coverage_statements_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* method id */ +
+ LEB128_SIZE /* offset */ +
+ LEB128_SIZE /* counter */ +
+ LEB128_SIZE /* line */ +
+ LEB128_SIZE /* column */
+ );
+
+ emit_event (logbuffer, TYPE_COVERAGE_STATEMENT | TYPE_COVERAGE);
+ emit_uvalue (logbuffer, method_id);
+ emit_uvalue (logbuffer, entry->offset);
+ emit_uvalue (logbuffer, entry->counter);
+ emit_uvalue (logbuffer, entry->line);
+ emit_uvalue (logbuffer, entry->column);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+ }
+
+ method_id++;
+
+ g_free (class_name);
+
+ g_ptr_array_foreach (coverage_data, free_coverage_entry, NULL);
+ g_ptr_array_free (coverage_data, TRUE);
+ coverage_data = NULL;
+}
+
+/* This empties the queue */
+static guint
+count_queue (MonoLockFreeQueue *queue)
+{
+ MonoLockFreeQueueNode *node;
+ guint count = 0;
+
+ while ((node = mono_lock_free_queue_dequeue (queue))) {
+ count++;
+ mono_thread_hazardous_try_free (node, g_free);
+ }
+
+ return count;
+}
+
+static void
+build_class_buffer (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoClass *klass = (MonoClass *)key;
+ MonoLockFreeQueue *class_methods = (MonoLockFreeQueue *)value;
+ MonoImage *image;
+ char *class_name;
+ const char *assembly_name;
+ int number_of_methods, partially_covered;
+ guint fully_covered;
+
+ image = mono_class_get_image (klass);
+ assembly_name = mono_image_get_name (image);
+ class_name = mono_type_get_name (mono_class_get_type (klass));
+
+ assembly_name = assembly_name ? assembly_name : "";
+ number_of_methods = mono_class_num_methods (klass);
+ fully_covered = count_queue (class_methods);
+ /* We don't handle partial covered yet */
+ partially_covered = 0;
+
+ ENTER_LOG (&coverage_classes_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ strlen (assembly_name) + 1 /* assembly name */ +
+ strlen (class_name) + 1 /* class name */ +
+ LEB128_SIZE /* no. methods */ +
+ LEB128_SIZE /* fully covered */ +
+ LEB128_SIZE /* partially covered */
+ );
+
+ emit_event (logbuffer, TYPE_COVERAGE_CLASS | TYPE_COVERAGE);
+ emit_string (logbuffer, assembly_name, strlen (assembly_name) + 1);
+ emit_string (logbuffer, class_name, strlen (class_name) + 1);
+ emit_uvalue (logbuffer, number_of_methods);
+ emit_uvalue (logbuffer, fully_covered);
+ emit_uvalue (logbuffer, partially_covered);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+ g_free (class_name);
+}
+
+static void
+get_coverage_for_image (MonoImage *image, int *number_of_methods, guint *fully_covered, int *partially_covered)
+{
+ MonoLockFreeQueue *image_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (image_to_methods, image);
+
+ *number_of_methods = mono_image_get_table_rows (image, MONO_TABLE_METHOD);
+ if (image_methods)
+ *fully_covered = count_queue (image_methods);
+ else
+ *fully_covered = 0;
+
+ // FIXME: We don't handle partially covered yet.
+ *partially_covered = 0;
+}
+
+static void
+build_assembly_buffer (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoAssembly *assembly = (MonoAssembly *)value;
+ MonoImage *image = mono_assembly_get_image (assembly);
+ const char *name, *guid, *filename;
+ int number_of_methods = 0, partially_covered = 0;
+ guint fully_covered = 0;
+
+ name = mono_image_get_name (image);
+ guid = mono_image_get_guid (image);
+ filename = mono_image_get_filename (image);
+
+ name = name ? name : "";
+ guid = guid ? guid : "";
+ filename = filename ? filename : "";
+
+ get_coverage_for_image (image, &number_of_methods, &fully_covered, &partially_covered);
+
+ ENTER_LOG (&coverage_assemblies_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ strlen (name) + 1 /* name */ +
+ strlen (guid) + 1 /* guid */ +
+ strlen (filename) + 1 /* file name */ +
+ LEB128_SIZE /* no. methods */ +
+ LEB128_SIZE /* fully covered */ +
+ LEB128_SIZE /* partially covered */
+ );
+
+ emit_event (logbuffer, TYPE_COVERAGE_ASSEMBLY | TYPE_COVERAGE);
+ emit_string (logbuffer, name, strlen (name) + 1);
+ emit_string (logbuffer, guid, strlen (guid) + 1);
+ emit_string (logbuffer, filename, strlen (filename) + 1);
+ emit_uvalue (logbuffer, number_of_methods);
+ emit_uvalue (logbuffer, fully_covered);
+ emit_uvalue (logbuffer, partially_covered);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+}
+
+static void
+dump_coverage (MonoProfiler *prof)
+{
+ if (!coverage_initialized)
+ return;
+
+ COVERAGE_DEBUG(fprintf (stderr, "Coverage: Started dump\n");)
+ method_id = 0;
+
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_foreach (coverage_assemblies, build_assembly_buffer, NULL);
+ mono_conc_hashtable_foreach (coverage_classes, build_class_buffer, NULL);
+ mono_conc_hashtable_foreach (coverage_methods, build_method_buffer, prof);
+ mono_os_mutex_unlock (&coverage_mutex);
+
+ COVERAGE_DEBUG(fprintf (stderr, "Coverage: Finished dump\n");)
+}
+
+static void
+process_method_enter_coverage (MonoProfiler *prof, MonoMethod *method)
+{
+ MonoClass *klass;
+ MonoImage *image;
+
+ if (!coverage_initialized)
+ return;
+
+ klass = mono_method_get_class (method);
+ image = mono_class_get_image (klass);
+
+ if (mono_conc_hashtable_lookup (suppressed_assemblies, (gpointer) mono_image_get_name (image)))
+ return;
+
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_insert (entered_methods, method, method);
+ mono_os_mutex_unlock (&coverage_mutex);
+}
+
+static MonoLockFreeQueueNode *
+create_method_node (MonoMethod *method)
+{
+ MethodNode *node = (MethodNode *) g_malloc (sizeof (MethodNode));
+ mono_lock_free_queue_node_init ((MonoLockFreeQueueNode *) node, FALSE);
+ node->method = method;
+
+ return (MonoLockFreeQueueNode *) node;
+}
+
+static gboolean
+coverage_filter (MonoProfiler *prof, MonoMethod *method)
+{
+ MonoError error;
+ MonoClass *klass;
+ MonoImage *image;
+ MonoAssembly *assembly;
+ MonoMethodHeader *header;
+ guint32 iflags, flags, code_size;
+ char *fqn, *classname;
+ gboolean has_positive, found;
+ MonoLockFreeQueue *image_methods, *class_methods;
+ MonoLockFreeQueueNode *node;
+
+ g_assert (coverage_initialized && "Why are we being asked for coverage filter info when we're not doing coverage?");
+
+ COVERAGE_DEBUG(fprintf (stderr, "Coverage filter for %s\n", mono_method_get_name (method));)
+
+ flags = mono_method_get_flags (method, &iflags);
+ if ((iflags & 0x1000 /*METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL*/) ||
+ (flags & 0x2000 /*METHOD_ATTRIBUTE_PINVOKE_IMPL*/)) {
+ COVERAGE_DEBUG(fprintf (stderr, " Internal call or pinvoke - ignoring\n");)
+ return FALSE;
+ }
+
+ // Don't need to do anything else if we're already tracking this method
+ if (mono_conc_hashtable_lookup (coverage_methods, method)) {
+ COVERAGE_DEBUG(fprintf (stderr, " Already tracking\n");)
+ return TRUE;
+ }
+
+ klass = mono_method_get_class (method);
+ image = mono_class_get_image (klass);
+
+ // Don't handle coverage for the core assemblies
+ if (mono_conc_hashtable_lookup (suppressed_assemblies, (gpointer) mono_image_get_name (image)) != NULL)
+ return FALSE;
+
+ if (prof->coverage_filters) {
+ /* Check already filtered classes first */
+ if (mono_conc_hashtable_lookup (filtered_classes, klass)) {
+ COVERAGE_DEBUG(fprintf (stderr, " Already filtered\n");)
+ return FALSE;
+ }
+
+ classname = mono_type_get_name (mono_class_get_type (klass));
+
+ fqn = g_strdup_printf ("[%s]%s", mono_image_get_name (image), classname);
+
+ COVERAGE_DEBUG(fprintf (stderr, " Looking for %s in filter\n", fqn);)
+ // Check positive filters first
+ has_positive = FALSE;
+ found = FALSE;
+ for (guint i = 0; i < prof->coverage_filters->len; ++i) {
+ char *filter = (char *)g_ptr_array_index (prof->coverage_filters, i);
+
+ if (filter [0] == '+') {
+ filter = &filter [1];
+
+ COVERAGE_DEBUG(fprintf (stderr, " Checking against +%s ...", filter);)
+
+ if (strstr (fqn, filter) != NULL) {
+ COVERAGE_DEBUG(fprintf (stderr, "matched\n");)
+ found = TRUE;
+ } else
+ COVERAGE_DEBUG(fprintf (stderr, "no match\n");)
+
+ has_positive = TRUE;
+ }
+ }
+
+ if (has_positive && !found) {
+ COVERAGE_DEBUG(fprintf (stderr, " Positive match was not found\n");)
+
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_insert (filtered_classes, klass, klass);
+ mono_os_mutex_unlock (&coverage_mutex);
+ g_free (fqn);
+ g_free (classname);
+
+ return FALSE;
+ }
+
+ for (guint i = 0; i < prof->coverage_filters->len; ++i) {
+ // FIXME: Is substring search sufficient?
+ char *filter = (char *)g_ptr_array_index (prof->coverage_filters, i);
+ if (filter [0] == '+')
+ continue;
+
+ // Skip '-'
+ filter = &filter [1];
+ COVERAGE_DEBUG(fprintf (stderr, " Checking against -%s ...", filter);)
+
+ if (strstr (fqn, filter) != NULL) {
+ COVERAGE_DEBUG(fprintf (stderr, "matched\n");)
+
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_insert (filtered_classes, klass, klass);
+ mono_os_mutex_unlock (&coverage_mutex);
+ g_free (fqn);
+ g_free (classname);
+
+ return FALSE;
+ } else
+ COVERAGE_DEBUG(fprintf (stderr, "no match\n");)
+
+ }
+
+ g_free (fqn);
+ g_free (classname);
+ }
+
+ COVERAGE_DEBUG(fprintf (stderr, " Handling coverage for %s\n", mono_method_get_name (method));)
+ header = mono_method_get_header_checked (method, &error);
+ mono_error_cleanup (&error);
+
+ mono_method_header_get_code (header, &code_size, NULL);
+
+ assembly = mono_image_get_assembly (image);
+
+ // Need to keep the assemblies around for as long as they are kept in the hashtable
+ // Nunit, for example, has a habit of unloading them before the coverage statistics are
+ // generated causing a crash. See https://bugzilla.xamarin.com/show_bug.cgi?id=39325
+ mono_assembly_addref (assembly);
+
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_insert (coverage_methods, method, method);
+ mono_conc_hashtable_insert (coverage_assemblies, assembly, assembly);
+ mono_os_mutex_unlock (&coverage_mutex);
+
+ image_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (image_to_methods, image);
+
+ if (image_methods == NULL) {
+ image_methods = (MonoLockFreeQueue *) g_malloc (sizeof (MonoLockFreeQueue));
+ mono_lock_free_queue_init (image_methods);
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_insert (image_to_methods, image, image_methods);
+ mono_os_mutex_unlock (&coverage_mutex);
+ }
+
+ node = create_method_node (method);
+ mono_lock_free_queue_enqueue (image_methods, node);
+
+ class_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (coverage_classes, klass);
+
+ if (class_methods == NULL) {
+ class_methods = (MonoLockFreeQueue *) g_malloc (sizeof (MonoLockFreeQueue));
+ mono_lock_free_queue_init (class_methods);
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_insert (coverage_classes, klass, class_methods);
+ mono_os_mutex_unlock (&coverage_mutex);
+ }
+
+ node = create_method_node (method);
+ mono_lock_free_queue_enqueue (class_methods, node);
+
+ return TRUE;
+}
+
+#define LINE_BUFFER_SIZE 4096
+/* Max file limit of 128KB */
+#define MAX_FILE_SIZE 128 * 1024
+static char *
+get_file_content (FILE *stream)
+{
+ char *buffer;
+ ssize_t bytes_read;
+ long filesize;
+ int res, offset = 0;
+
+ res = fseek (stream, 0, SEEK_END);
+ if (res < 0)
+ return NULL;
+
+ filesize = ftell (stream);
+ if (filesize < 0)
+ return NULL;
+
+ res = fseek (stream, 0, SEEK_SET);
+ if (res < 0)
+ return NULL;
+
+ if (filesize > MAX_FILE_SIZE)
+ return NULL;
+
+ buffer = (char *) g_malloc ((filesize + 1) * sizeof (char));
+ while ((bytes_read = fread (buffer + offset, 1, LINE_BUFFER_SIZE, stream)) > 0)
+ offset += bytes_read;
+
+ /* NULL terminate our buffer */
+ buffer[filesize] = '\0';
+ return buffer;
+}
+
+static char *
+get_next_line (char *contents, char **next_start)
+{
+ char *p = contents;
+
+ if (p == NULL || *p == '\0') {
+ *next_start = NULL;
+ return NULL;
+ }
+
+ while (*p != '\n' && *p != '\0')
+ p++;
+
+ if (*p == '\n') {
+ *p = '\0';
+ *next_start = p + 1;
+ } else
+ *next_start = NULL;
+
+ return contents;
+}
+
+static void
+init_suppressed_assemblies (void)
+{
+ char *content;
+ char *line;
+ FILE *sa_file;
+
+ suppressed_assemblies = mono_conc_hashtable_new (g_str_hash, g_str_equal);
+ sa_file = fopen (SUPPRESSION_DIR "/mono-profiler-log.suppression", "r");
+ if (sa_file == NULL)
+ return;
+
+ /* Don't need to free @content as it is referred to by the lines stored in @suppressed_assemblies */
+ content = get_file_content (sa_file);
+ if (content == NULL) {
+ g_error ("mono-profiler-log.suppression is greater than 128kb - aborting\n");
+ }
+
+ while ((line = get_next_line (content, &content))) {
+ line = g_strchomp (g_strchug (line));
+ /* No locking needed as we're doing initialization */
+ mono_conc_hashtable_insert (suppressed_assemblies, line, line);
+ }
+
+ fclose (sa_file);
+}
+
+static void
+parse_cov_filter_file (GPtrArray *filters, const char *file)
+{
+ FILE *filter_file;
+ char *line, *content;
+
+ filter_file = fopen (file, "r");
+ if (filter_file == NULL) {
+ fprintf (stderr, "Unable to open %s\n", file);
+ return;
+ }
+
+ /* Don't need to free content as it is referred to by the lines stored in @filters */
+ content = get_file_content (filter_file);
+ if (content == NULL)
+ fprintf (stderr, "WARNING: %s is greater than 128kb - ignoring\n", file);
+
+ while ((line = get_next_line (content, &content)))
+ g_ptr_array_add (filters, g_strchug (g_strchomp (line)));
+
+ fclose (filter_file);
+}
+
+static void
+coverage_init (MonoProfiler *prof)
+{
+ g_assert (!coverage_initialized && "Why are we initializing coverage twice?");
+
+ COVERAGE_DEBUG(fprintf (stderr, "Coverage initialized\n");)
+
+ mono_os_mutex_init (&coverage_mutex);
+ coverage_methods = mono_conc_hashtable_new (NULL, NULL);
+ coverage_assemblies = mono_conc_hashtable_new (NULL, NULL);
+ coverage_classes = mono_conc_hashtable_new (NULL, NULL);
+ filtered_classes = mono_conc_hashtable_new (NULL, NULL);
+ entered_methods = mono_conc_hashtable_new (NULL, NULL);
+ image_to_methods = mono_conc_hashtable_new (NULL, NULL);
+ init_suppressed_assemblies ();
+
+ coverage_initialized = TRUE;
+}
+
+static void
+unref_coverage_assemblies (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoAssembly *assembly = (MonoAssembly *)value;
+ mono_assembly_close (assembly);
+}
+
+static void
+free_sample_hit (gpointer p)
+{
+ mono_lock_free_free (p, SAMPLE_BLOCK_SIZE);
+}
+
+static void
+cleanup_reusable_samples (MonoProfiler *prof)
+{
+ SampleHit *sample;
+
+ while ((sample = (SampleHit *) mono_lock_free_queue_dequeue (&prof->sample_reuse_queue)))
+ mono_thread_hazardous_try_free (sample, free_sample_hit);
+}
+
+static void
+log_shutdown (MonoProfiler *prof)
+{
+ InterlockedWrite (&in_shutdown, 1);
+
+ if (!no_counters)
+ counters_and_perfcounters_sample (prof);
+
+ dump_coverage (prof);
+
+ char c = 1;
+
+ if (write (prof->pipes [1], &c, 1) != 1) {
+ fprintf (stderr, "Could not write to pipe: %s\n", strerror (errno));
+ exit (1);
+ }
+
+ mono_native_thread_join (prof->helper_thread);
+
+ mono_os_mutex_destroy (&counters_mutex);
+
+ MonoCounterAgent *mc_next;
+
+ for (MonoCounterAgent *cur = counters; cur; cur = mc_next) {
+ mc_next = cur->next;
+ g_free (cur);
+ }
+
+ PerfCounterAgent *pc_next;
+
+ for (PerfCounterAgent *cur = perfcounters; cur; cur = pc_next) {
+ pc_next = cur->next;
+ g_free (cur);
+ }
+
+ /*
+ * Ensure that we empty the LLS completely, even if some nodes are
+ * not immediately removed upon calling mono_lls_remove (), by
+ * iterating until the head is NULL.
+ */
+ while (profiler_thread_list.head) {
+ MONO_LLS_FOREACH_SAFE (&profiler_thread_list, MonoProfilerThread, thread) {
+ g_assert (thread->attached && "Why is a thread in the LLS not attached?");
+
+ remove_thread (thread);
+ } MONO_LLS_FOREACH_SAFE_END
+ }
+
+ /*
+ * Ensure that all threads have been freed, so that we don't miss any
+ * buffers when we shut down the writer thread below.
+ */
+ mono_thread_hazardous_try_free_all ();
+
+ InterlockedWrite (&prof->run_dumper_thread, 0);
+ mono_os_sem_post (&prof->dumper_queue_sem);
+ mono_native_thread_join (prof->dumper_thread);
+ mono_os_sem_destroy (&prof->dumper_queue_sem);
+
+ InterlockedWrite (&prof->run_writer_thread, 0);
+ mono_os_sem_post (&prof->writer_queue_sem);
+ mono_native_thread_join (prof->writer_thread);
+ mono_os_sem_destroy (&prof->writer_queue_sem);
+
+ /*
+ * Free all writer queue entries, and ensure that all sample hits will be
+ * added to the sample reuse queue.
+ */
+ mono_thread_hazardous_try_free_all ();
+
+ cleanup_reusable_samples (prof);
+
+ /*
+ * Finally, make sure that all sample hits are freed. This should cover all
+ * hazardous data from the profiler. We can now be sure that the runtime
+ * won't later invoke free functions in the profiler library after it has
+ * been unloaded.
+ */
+ mono_thread_hazardous_try_free_all ();
+
+ g_assert (!InterlockedRead (&buffer_rwlock_count) && "Why is the reader count still non-zero?");
+ g_assert (!InterlockedReadPointer (&buffer_rwlock_exclusive) && "Why does someone still hold the exclusive lock?");
+
+#if defined (HAVE_SYS_ZLIB)
+ if (prof->gzfile)
+ gzclose (prof->gzfile);
+#endif
+ if (prof->pipe_output)
+ pclose (prof->file);
+ else
+ fclose (prof->file);
+
+ mono_conc_hashtable_destroy (prof->method_table);
+ mono_os_mutex_destroy (&prof->method_table_mutex);
+
+ if (coverage_initialized) {
+ mono_os_mutex_lock (&coverage_mutex);
+ mono_conc_hashtable_foreach (coverage_assemblies, unref_coverage_assemblies, prof);
+ mono_os_mutex_unlock (&coverage_mutex);
+
+ mono_conc_hashtable_destroy (coverage_methods);
+ mono_conc_hashtable_destroy (coverage_assemblies);
+ mono_conc_hashtable_destroy (coverage_classes);
+ mono_conc_hashtable_destroy (filtered_classes);
+
+ mono_conc_hashtable_destroy (entered_methods);
+ mono_conc_hashtable_destroy (image_to_methods);
+ mono_conc_hashtable_destroy (suppressed_assemblies);
+ mono_os_mutex_destroy (&coverage_mutex);
+ }
+
+ PROF_TLS_FREE ();
+
+ g_free (prof->args);
+ g_free (prof);
+}
+
+static char*
+new_filename (const char* filename)
+{
+ time_t t = time (NULL);
+ int pid = process_id ();
+ char pid_buf [16];
+ char time_buf [16];
+ char *res, *d;
+ const char *p;
+ int count_dates = 0;
+ int count_pids = 0;
+ int s_date, s_pid;
+ struct tm *ts;
+ for (p = filename; *p; p++) {
+ if (*p != '%')
+ continue;
+ p++;
+ if (*p == 't')
+ count_dates++;
+ else if (*p == 'p')
+ count_pids++;
+ else if (*p == 0)
+ break;
+ }
+ if (!count_dates && !count_pids)
+ return pstrdup (filename);
+ snprintf (pid_buf, sizeof (pid_buf), "%d", pid);
+ ts = gmtime (&t);
+ snprintf (time_buf, sizeof (time_buf), "%d%02d%02d%02d%02d%02d",
+ 1900 + ts->tm_year, 1 + ts->tm_mon, ts->tm_mday, ts->tm_hour, ts->tm_min, ts->tm_sec);
+ s_date = strlen (time_buf);
+ s_pid = strlen (pid_buf);
+ d = res = (char *) g_malloc (strlen (filename) + s_date * count_dates + s_pid * count_pids);
+ for (p = filename; *p; p++) {
+ if (*p != '%') {
+ *d++ = *p;
+ continue;
+ }
+ p++;
+ if (*p == 't') {
+ strcpy (d, time_buf);
+ d += s_date;
+ continue;
+ } else if (*p == 'p') {
+ strcpy (d, pid_buf);
+ d += s_pid;
+ continue;
+ } else if (*p == '%') {
+ *d++ = '%';
+ continue;
+ } else if (*p == 0)
+ break;
+ *d++ = '%';
+ *d++ = *p;
+ }
+ *d = 0;
+ return res;
+}
+
+static void
+add_to_fd_set (fd_set *set, int fd, int *max_fd)
+{
+ /*
+ * This should only trigger for the basic FDs (server socket, pipes) at
+ * startup if for some mysterious reason they're too large. In this case,
+ * the profiler really can't function, and we're better off printing an
+ * error and exiting.
+ */
+ if (fd >= FD_SETSIZE) {
+ fprintf (stderr, "File descriptor is out of bounds for fd_set: %d\n", fd);
+ exit (1);
+ }
+
+ FD_SET (fd, set);
+
+ if (*max_fd < fd)
+ *max_fd = fd;
+}
+
+static void *
+helper_thread (void *arg)
+{
+ MonoProfiler *prof = (MonoProfiler *) arg;
+
+ mono_threads_attach_tools_thread ();
+ mono_native_thread_set_name (mono_native_thread_id_get (), "Profiler helper");
+
+ MonoProfilerThread *thread = init_thread (prof, FALSE);
+
+ GArray *command_sockets = g_array_new (FALSE, FALSE, sizeof (int));
+
+ while (1) {
+ fd_set rfds;
+ int max_fd = -1;
+
+ FD_ZERO (&rfds);
+
+ add_to_fd_set (&rfds, prof->server_socket, &max_fd);
+ add_to_fd_set (&rfds, prof->pipes [0], &max_fd);
+
+ for (gint i = 0; i < command_sockets->len; i++)
+ add_to_fd_set (&rfds, g_array_index (command_sockets, int, i), &max_fd);
+
+ struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
+
+ // Sleep for 1sec or until a file descriptor has data.
+ if (select (max_fd + 1, &rfds, NULL, NULL, &tv) == -1) {
+ if (errno == EINTR)
+ continue;
+
+ fprintf (stderr, "Error in mono-profiler-log server: %s", strerror (errno));
+ exit (1);
+ }
+
+ if (!no_counters)
+ counters_and_perfcounters_sample (prof);
+
+ buffer_lock_excl ();
+
+ sync_point (SYNC_POINT_PERIODIC);
+
+ buffer_unlock_excl ();
+
+ // Are we shutting down?
+ if (FD_ISSET (prof->pipes [0], &rfds)) {
+ char c;
+ read (prof->pipes [0], &c, 1);
+ break;
+ }
+
+ for (gint i = 0; i < command_sockets->len; i++) {
+ int fd = g_array_index (command_sockets, int, i);
+
+ if (!FD_ISSET (fd, &rfds))
+ continue;
+
+ char buf [64];
+ int len = read (fd, buf, sizeof (buf) - 1);
+
+ if (len == -1)
+ continue;
+
+ if (!len) {
+ // The other end disconnected.
+ g_array_remove_index (command_sockets, i);
+ close (fd);
+
+ continue;
+ }
+
+ buf [len] = 0;
+
+ if (!strcmp (buf, "heapshot\n") && hs_mode_ondemand) {
+ // Rely on the finalization callbacks invoking process_requests ().
+ heapshot_requested = 1;
+ mono_gc_finalize_notify ();
+ }
+ }
+
+ if (FD_ISSET (prof->server_socket, &rfds)) {
+ int fd = accept (prof->server_socket, NULL, NULL);
+
+ if (fd != -1) {
+ if (fd >= FD_SETSIZE)
+ close (fd);
+ else
+ g_array_append_val (command_sockets, fd);
+ }
+ }
+ }
+
+ for (gint i = 0; i < command_sockets->len; i++)
+ close (g_array_index (command_sockets, int, i));
+
+ g_array_free (command_sockets, TRUE);
+
+ send_log_unsafe (FALSE);
+ deinit_thread (thread);
+
+ mono_thread_info_detach ();
+
+ return NULL;
+}
+
+static void
+start_helper_thread (MonoProfiler* prof)
+{
+ if (pipe (prof->pipes) == -1) {
+ fprintf (stderr, "Cannot create pipe: %s\n", strerror (errno));
+ exit (1);
+ }
+
+ prof->server_socket = socket (PF_INET, SOCK_STREAM, 0);
+
+ if (prof->server_socket == -1) {
+ fprintf (stderr, "Cannot create server socket: %s\n", strerror (errno));
+ exit (1);
+ }
+
+ struct sockaddr_in server_address;
+
+ memset (&server_address, 0, sizeof (server_address));
+ server_address.sin_family = AF_INET;
+ server_address.sin_addr.s_addr = INADDR_ANY;
+ server_address.sin_port = htons (prof->command_port);
+
+ if (bind (prof->server_socket, (struct sockaddr *) &server_address, sizeof (server_address)) == -1) {
+ fprintf (stderr, "Cannot bind server socket on port %d: %s\n", prof->command_port, strerror (errno));
+ close (prof->server_socket);
+ exit (1);
+ }
+
+ if (listen (prof->server_socket, 1) == -1) {
+ fprintf (stderr, "Cannot listen on server socket: %s\n", strerror (errno));
+ close (prof->server_socket);
+ exit (1);
+ }
+
+ socklen_t slen = sizeof (server_address);
+
+ if (getsockname (prof->server_socket, (struct sockaddr *) &server_address, &slen)) {
+ fprintf (stderr, "Could not get assigned port: %s\n", strerror (errno));
+ close (prof->server_socket);
+ exit (1);
+ }
+
+ prof->command_port = ntohs (server_address.sin_port);
+
+ if (!mono_native_thread_create (&prof->helper_thread, helper_thread, prof)) {
+ fprintf (stderr, "Could not start helper thread\n");
+ close (prof->server_socket);
+ exit (1);
+ }
+}
+
+static void
+free_writer_entry (gpointer p)
+{
+ mono_lock_free_free (p, WRITER_ENTRY_BLOCK_SIZE);
+}
+
+static gboolean
+handle_writer_queue_entry (MonoProfiler *prof)
+{
+ WriterQueueEntry *entry;
+
+ if ((entry = (WriterQueueEntry *) mono_lock_free_queue_dequeue (&prof->writer_queue))) {
+ if (!entry->methods)
+ goto no_methods;
+
+ gboolean wrote_methods = FALSE;
+
+ /*
+ * Encode the method events in a temporary log buffer that we
+ * flush to disk before the main buffer, ensuring that all
+ * methods have metadata emitted before they're referenced.
+ *
+ * We use a 'proper' thread-local buffer for this as opposed
+ * to allocating and freeing a buffer by hand because the call
+ * to mono_method_full_name () below may trigger class load
+ * events when it retrieves the signature of the method. So a
+ * thread-local buffer needs to exist when such events occur.
+ */
+ for (guint i = 0; i < entry->methods->len; i++) {
+ MethodInfo *info = (MethodInfo *) g_ptr_array_index (entry->methods, i);
+
+ if (mono_conc_hashtable_lookup (prof->method_table, info->method))
+ goto free_info; // This method already has metadata emitted.
+
+ /*
+ * Other threads use this hash table to get a general
+ * idea of whether a method has already been emitted to
+ * the stream. Due to the way we add to this table, it
+ * can easily happen that multiple threads queue up the
+ * same methods, but that's OK since eventually all
+ * methods will be in this table and the thread-local
+ * method lists will just be empty for the rest of the
+ * app's lifetime.
+ */
+ mono_os_mutex_lock (&prof->method_table_mutex);
+ mono_conc_hashtable_insert (prof->method_table, info->method, info->method);
+ mono_os_mutex_unlock (&prof->method_table_mutex);
+
+ char *name = mono_method_full_name (info->method, 1);
+ int nlen = strlen (name) + 1;
+ void *cstart = info->ji ? mono_jit_info_get_code_start (info->ji) : NULL;
+ int csize = info->ji ? mono_jit_info_get_code_size (info->ji) : 0;
+
+ ENTER_LOG (&method_jits_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ LEB128_SIZE /* method */ +
+ LEB128_SIZE /* start */ +
+ LEB128_SIZE /* size */ +
+ nlen /* name */
+ );
+
+ emit_event_time (logbuffer, TYPE_JIT | TYPE_METHOD, info->time);
+ emit_method_inner (logbuffer, info->method);
+ emit_ptr (logbuffer, cstart);
+ emit_value (logbuffer, csize);
+
+ memcpy (logbuffer->cursor, name, nlen);
+ logbuffer->cursor += nlen;
+
+ EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
+
+ mono_free (name);
+
+ wrote_methods = TRUE;
+
+ free_info:
+ g_free (info);
+ }
+
+ g_ptr_array_free (entry->methods, TRUE);
+
+ if (wrote_methods) {
+ dump_buffer_threadless (prof, PROF_TLS_GET ()->buffer);
+ init_buffer_state (PROF_TLS_GET ());
+ }
+
+ no_methods:
+ dump_buffer (prof, entry->buffer);
+
+ mono_thread_hazardous_try_free (entry, free_writer_entry);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void *
+writer_thread (void *arg)
+{
+ MonoProfiler *prof = (MonoProfiler *)arg;
+
+ mono_threads_attach_tools_thread ();
+ mono_native_thread_set_name (mono_native_thread_id_get (), "Profiler writer");
+
+ dump_header (prof);
+
+ MonoProfilerThread *thread = init_thread (prof, FALSE);
+
+ while (InterlockedRead (&prof->run_writer_thread)) {
+ mono_os_sem_wait (&prof->writer_queue_sem, MONO_SEM_FLAGS_NONE);
+ handle_writer_queue_entry (prof);
+ }
+
+ /* Drain any remaining entries on shutdown. */
+ while (handle_writer_queue_entry (prof));
+
+ free_buffer (thread->buffer, thread->buffer->size);
+ deinit_thread (thread);
+
+ mono_thread_info_detach ();
+
+ return NULL;
+}
+
+static void
+start_writer_thread (MonoProfiler* prof)
+{
+ InterlockedWrite (&prof->run_writer_thread, 1);
+
+ if (!mono_native_thread_create (&prof->writer_thread, writer_thread, prof)) {
+ fprintf (stderr, "Could not start writer thread\n");
+ exit (1);
+ }
+}
+
+static void
+reuse_sample_hit (gpointer p)
+{
+ SampleHit *sample = p;
+
+ mono_lock_free_queue_node_unpoison (&sample->node);
+ mono_lock_free_queue_enqueue (&sample->prof->sample_reuse_queue, &sample->node);
+}
+
+static gboolean
+handle_dumper_queue_entry (MonoProfiler *prof)
+{
+ SampleHit *sample;
+
+ if ((sample = (SampleHit *) mono_lock_free_queue_dequeue (&prof->dumper_queue))) {
+ for (int i = 0; i < sample->count; ++i) {
+ MonoMethod *method = sample->frames [i].method;
+ MonoDomain *domain = sample->frames [i].domain;
+ void *address = sample->frames [i].base_address;
+
+ if (!method) {
+ g_assert (domain && "What happened to the domain pointer?");
+ g_assert (address && "What happened to the instruction pointer?");
+
+ MonoJitInfo *ji = mono_jit_info_table_find (domain, (char *) address);
+
+ if (ji)
+ sample->frames [i].method = mono_jit_info_get_method (ji);
+ }
+ }
+
+ ENTER_LOG (&sample_hits_ctr, logbuffer,
+ EVENT_SIZE /* event */ +
+ BYTE_SIZE /* type */ +
+ LEB128_SIZE /* tid */ +
+ LEB128_SIZE /* count */ +
+ 1 * (
+ LEB128_SIZE /* ip */
+ ) +
+ LEB128_SIZE /* managed count */ +
+ sample->count * (
+ LEB128_SIZE /* method */
+ )
+ );
+
+ emit_event_time (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_HIT, sample->time);
+ emit_byte (logbuffer, SAMPLE_CYCLES);
+ emit_ptr (logbuffer, (void *) sample->tid);
+ emit_value (logbuffer, 1);
+
+ // TODO: Actual native unwinding.
+ for (int i = 0; i < 1; ++i) {
+ emit_ptr (logbuffer, sample->ip);
+ add_code_pointer ((uintptr_t) sample->ip);
+ }
+
+ /* new in data version 6 */
+ emit_uvalue (logbuffer, sample->count);
+
+ for (int i = 0; i < sample->count; ++i)
+ emit_method (logbuffer, sample->frames [i].method);
+
+ EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
+
+ mono_thread_hazardous_try_free (sample, reuse_sample_hit);
+
+ dump_unmanaged_coderefs (prof);
+ }
+
+ return FALSE;
+}
+
+static void *
+dumper_thread (void *arg)
+{
+ MonoProfiler *prof = (MonoProfiler *)arg;
+
+ mono_threads_attach_tools_thread ();
+ mono_native_thread_set_name (mono_native_thread_id_get (), "Profiler dumper");
+
+ MonoProfilerThread *thread = init_thread (prof, FALSE);
+
+ while (InterlockedRead (&prof->run_dumper_thread)) {
+ mono_os_sem_wait (&prof->dumper_queue_sem, MONO_SEM_FLAGS_NONE);
+ handle_dumper_queue_entry (prof);
+ }
+
+ /* Drain any remaining entries on shutdown. */
+ while (handle_dumper_queue_entry (prof));
+
+ send_log_unsafe (FALSE);
+ deinit_thread (thread);
+
+ mono_thread_info_detach ();
+
+ return NULL;
+}
+
+static void
+start_dumper_thread (MonoProfiler* prof)
+{
+ InterlockedWrite (&prof->run_dumper_thread, 1);
+
+ if (!mono_native_thread_create (&prof->dumper_thread, dumper_thread, prof)) {
+ fprintf (stderr, "Could not start dumper thread\n");
+ exit (1);
+ }
+}
+
+static void
+register_counter (const char *name, gint32 *counter)
+{
+ mono_counters_register (name, MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, counter);
+}
+
+static void
+runtime_initialized (MonoProfiler *profiler)
+{
+ InterlockedWrite (&runtime_inited, 1);
+
+ register_counter ("Sample events allocated", &sample_allocations_ctr);
+ register_counter ("Log buffers allocated", &buffer_allocations_ctr);
+
+ register_counter ("Event: Sync points", &sync_points_ctr);
+ register_counter ("Event: Heap objects", &heap_objects_ctr);
+ register_counter ("Event: Heap starts", &heap_starts_ctr);
+ register_counter ("Event: Heap ends", &heap_ends_ctr);
+ register_counter ("Event: Heap roots", &heap_roots_ctr);
+ register_counter ("Event: GC events", &gc_events_ctr);
+ register_counter ("Event: GC resizes", &gc_resizes_ctr);
+ register_counter ("Event: GC allocations", &gc_allocs_ctr);
+ register_counter ("Event: GC moves", &gc_moves_ctr);
+ register_counter ("Event: GC handle creations", &gc_handle_creations_ctr);
+ register_counter ("Event: GC handle deletions", &gc_handle_deletions_ctr);
+ register_counter ("Event: GC finalize starts", &finalize_begins_ctr);
+ register_counter ("Event: GC finalize ends", &finalize_ends_ctr);
+ register_counter ("Event: GC finalize object starts", &finalize_object_begins_ctr);
+ register_counter ("Event: GC finalize object ends", &finalize_object_ends_ctr);
+ register_counter ("Event: Image loads", &image_loads_ctr);
+ register_counter ("Event: Image unloads", &image_unloads_ctr);
+ register_counter ("Event: Assembly loads", &assembly_loads_ctr);
+ register_counter ("Event: Assembly unloads", &assembly_unloads_ctr);
+ register_counter ("Event: Class loads", &class_loads_ctr);
+ register_counter ("Event: Class unloads", &class_unloads_ctr);
+ register_counter ("Event: Method entries", &method_entries_ctr);
+ register_counter ("Event: Method exits", &method_exits_ctr);
+ register_counter ("Event: Method exception leaves", &method_exception_exits_ctr);
+ register_counter ("Event: Method JITs", &method_jits_ctr);
+ register_counter ("Event: Code buffers", &code_buffers_ctr);
+ register_counter ("Event: Exception throws", &exception_throws_ctr);
+ register_counter ("Event: Exception clauses", &exception_clauses_ctr);
+ register_counter ("Event: Monitor contentions", &monitor_contentions_ctr);
+ register_counter ("Event: Monitor acquisitions", &monitor_acquisitions_ctr);
+ register_counter ("Event: Monitor failures", &monitor_failures_ctr);
+ register_counter ("Event: Thread starts", &thread_starts_ctr);
+ register_counter ("Event: Thread ends", &thread_ends_ctr);
+ register_counter ("Event: Thread names", &thread_names_ctr);
+ register_counter ("Event: Domain loads", &domain_loads_ctr);
+ register_counter ("Event: Domain unloads", &domain_unloads_ctr);
+ register_counter ("Event: Domain names", &domain_names_ctr);
+ register_counter ("Event: Context loads", &context_loads_ctr);
+ register_counter ("Event: Context unloads", &context_unloads_ctr);
+ register_counter ("Event: Sample binaries", &sample_ubins_ctr);
+ register_counter ("Event: Sample symbols", &sample_usyms_ctr);
+ register_counter ("Event: Sample hits", &sample_hits_ctr);
+ register_counter ("Event: Counter descriptors", &counter_descriptors_ctr);
+ register_counter ("Event: Counter samples", &counter_samples_ctr);
+ register_counter ("Event: Performance counter descriptors", &perfcounter_descriptors_ctr);
+ register_counter ("Event: Performance counter samples", &perfcounter_samples_ctr);
+ register_counter ("Event: Coverage methods", &coverage_methods_ctr);
+ register_counter ("Event: Coverage statements", &coverage_statements_ctr);
+ register_counter ("Event: Coverage classes", &coverage_classes_ctr);
+ register_counter ("Event: Coverage assemblies", &coverage_assemblies_ctr);
+
+ counters_init (profiler);
+
+ /*
+ * We must start the helper thread before the writer thread. This is
+ * because the helper thread sets up the command port which is written to
+ * the log header by the writer thread.
+ */
+ start_helper_thread (profiler);
+ start_writer_thread (profiler);
+ start_dumper_thread (profiler);
+}
+
+static MonoProfiler*
+create_profiler (const char *args, const char *filename, GPtrArray *filters)
+{
+ MonoProfiler *prof;
+ char *nf;
+ int force_delete = 0;
+ prof = (MonoProfiler *) g_calloc (1, sizeof (MonoProfiler));
+
+ prof->args = pstrdup (args);
+ prof->command_port = command_port;
+ if (filename && *filename == '-') {
+ force_delete = 1;
+ filename++;
+ g_warning ("WARNING: the output:-FILENAME option is deprecated, the profiler now always overrides the output file\n");
+ }
+ if (!filename) {
+ if (do_report)
+ filename = "|mprof-report -";
+ else
+ filename = "output.mlpd";
+ nf = (char*)filename;
+ } else {
+ nf = new_filename (filename);
+ if (do_report) {
+ int s = strlen (nf) + 32;
+ char *p = (char *) g_malloc (s);
+ snprintf (p, s, "|mprof-report '--out=%s' -", nf);
+ g_free (nf);
+ nf = p;
+ }
+ }
+ if (*nf == '|') {
+ prof->file = popen (nf + 1, "w");
+ prof->pipe_output = 1;
+ } else if (*nf == '#') {
+ int fd = strtol (nf + 1, NULL, 10);
+ prof->file = fdopen (fd, "a");
+ } else {
+ if (force_delete)
+ unlink (nf);
+ prof->file = fopen (nf, "wb");
+ }
+ if (!prof->file) {
+ fprintf (stderr, "Cannot create profiler output: %s\n", nf);
+ exit (1);
+ }
+
+#if defined (HAVE_SYS_ZLIB)
+ if (use_zip)
+ prof->gzfile = gzdopen (fileno (prof->file), "wb");
+#endif
+
+ /*
+ * If you hit this assert while increasing MAX_FRAMES, you need to increase
+ * SAMPLE_BLOCK_SIZE as well.
+ */
+ g_assert (SAMPLE_SLOT_SIZE (MAX_FRAMES) * 2 < LOCK_FREE_ALLOC_SB_USABLE_SIZE (SAMPLE_BLOCK_SIZE));
+
+ // FIXME: We should free this stuff too.
+ mono_lock_free_allocator_init_size_class (&prof->sample_size_class, SAMPLE_SLOT_SIZE (num_frames), SAMPLE_BLOCK_SIZE);
+ mono_lock_free_allocator_init_allocator (&prof->sample_allocator, &prof->sample_size_class, MONO_MEM_ACCOUNT_PROFILER);
+
+ mono_lock_free_queue_init (&prof->sample_reuse_queue);
+
+ g_assert (sizeof (WriterQueueEntry) * 2 < LOCK_FREE_ALLOC_SB_USABLE_SIZE (WRITER_ENTRY_BLOCK_SIZE));
+
+ // FIXME: We should free this stuff too.
+ mono_lock_free_allocator_init_size_class (&prof->writer_entry_size_class, sizeof (WriterQueueEntry), WRITER_ENTRY_BLOCK_SIZE);
+ mono_lock_free_allocator_init_allocator (&prof->writer_entry_allocator, &prof->writer_entry_size_class, MONO_MEM_ACCOUNT_PROFILER);
+
+ mono_lock_free_queue_init (&prof->writer_queue);
+ mono_os_sem_init (&prof->writer_queue_sem, 0);
+
+ mono_lock_free_queue_init (&prof->dumper_queue);
+ mono_os_sem_init (&prof->dumper_queue_sem, 0);
+
+ mono_os_mutex_init (&prof->method_table_mutex);
+ prof->method_table = mono_conc_hashtable_new (NULL, NULL);
+
+ if (do_coverage)
+ coverage_init (prof);
+ prof->coverage_filters = filters;
+
+ prof->startup_time = current_time ();
+ return prof;
+}
+
+/*
+ * declaration to silence the compiler: this is the entry point that
+ * mono will load from the shared library and call.
+ */
+extern void
+mono_profiler_startup (const char *desc);
+
+extern void
+mono_profiler_startup_log (const char *desc);
+
+/*
+ * this is the entry point that will be used when the profiler
+ * is embedded inside the main executable.
+ */
+void
+mono_profiler_startup_log (const char *desc)
+{
+ mono_profiler_startup (desc);
+}
+
+static ProfilerConfig config;
+
+void
+mono_profiler_startup (const char *desc)
+{
+ GPtrArray *filters = NULL;
+ MonoProfiler *prof;
+
+ proflog_parse_args (&config, desc [3] == ':' ? desc + 4 : "");
+
+ //XXX maybe later cleanup to use config directly
+ nocalls = !(config.effective_mask & PROFLOG_CALL_EVENTS);
+ no_counters = !(config.effective_mask & PROFLOG_COUNTER_EVENTS);
+ do_report = config.do_report;
+ do_debug = config.do_debug;
+ do_heap_shot = (config.effective_mask & PROFLOG_HEAPSHOT_FEATURE);
+ hs_mode_ondemand = config.hs_mode_ondemand;
+ hs_mode_ms = config.hs_mode_ms;
+ hs_mode_gc = config.hs_mode_gc;
+ do_mono_sample = (config.effective_mask & PROFLOG_SAMPLING_FEATURE);
+ use_zip = config.use_zip;
+ command_port = config.command_port;
+ num_frames = config.num_frames;
+ notraces = config.notraces;
+ max_allocated_sample_hits = config.max_allocated_sample_hits;
+ max_call_depth = config.max_call_depth;
+ do_coverage = (config.effective_mask & PROFLOG_CODE_COV_FEATURE);
+ debug_coverage = config.debug_coverage;
+ only_coverage = config.only_coverage;
+
+ if (config.cov_filter_files) {
+ filters = g_ptr_array_new ();
+ int i;
+ for (i = 0; i < config.cov_filter_files->len; ++i) {
+ const char *name = config.cov_filter_files->pdata [i];
+ parse_cov_filter_file (filters, name);
+ }
+ }
+
+ init_time ();
+
+ PROF_TLS_INIT ();
+
+ prof = create_profiler (desc, config.output_filename, filters);
+ if (!prof) {
+ PROF_TLS_FREE ();
+ return;
+ }
+
+ mono_lls_init (&profiler_thread_list, NULL);
+
+ init_thread (prof, TRUE);
+
+ //This two events are required for the profiler to work
+ int events = MONO_PROFILE_THREADS | MONO_PROFILE_GC;
+
+ //Required callbacks
+ mono_profiler_install (prof, log_shutdown);
+ mono_profiler_install_runtime_initialized (runtime_initialized);
+
+ mono_profiler_install_gc (gc_event, gc_resize);
+ mono_profiler_install_thread (thread_start, thread_end);
+
+ //It's questionable whether we actually want this to be mandatory, maybe put it behind the actual event?
+ mono_profiler_install_thread_name (thread_name);
+
+
+ if (config.effective_mask & PROFLOG_DOMAIN_EVENTS) {
+ events |= MONO_PROFILE_APPDOMAIN_EVENTS;
+ mono_profiler_install_appdomain (NULL, domain_loaded, domain_unloaded, NULL);
+ mono_profiler_install_appdomain_name (domain_name);
+ }
+
+ if (config.effective_mask & PROFLOG_ASSEMBLY_EVENTS) {
+ events |= MONO_PROFILE_ASSEMBLY_EVENTS;
+ mono_profiler_install_assembly (NULL, assembly_loaded, assembly_unloaded, NULL);
+ }
+
+ if (config.effective_mask & PROFLOG_MODULE_EVENTS) {
+ events |= MONO_PROFILE_MODULE_EVENTS;
+ mono_profiler_install_module (NULL, image_loaded, image_unloaded, NULL);
+ }
+
+ if (config.effective_mask & PROFLOG_CLASS_EVENTS) {
+ events |= MONO_PROFILE_CLASS_EVENTS;
+ mono_profiler_install_class (NULL, class_loaded, class_unloaded, NULL);
+ }
+
+ if (config.effective_mask & PROFLOG_JIT_COMPILATION_EVENTS) {
+ events |= MONO_PROFILE_JIT_COMPILATION;
+ mono_profiler_install_jit_end (method_jitted);
+ mono_profiler_install_code_buffer_new (code_buffer_new);
+ }
+
+ if (config.effective_mask & PROFLOG_EXCEPTION_EVENTS) {
+ events |= MONO_PROFILE_EXCEPTIONS;
+ mono_profiler_install_exception (throw_exc, method_exc_leave, clause_exc);
+ }
+
+ if (config.effective_mask & PROFLOG_ALLOCATION_EVENTS) {
+ events |= MONO_PROFILE_ALLOCATIONS;
+ mono_profiler_install_allocation (gc_alloc);
+ }
+
+ //PROFLOG_GC_EVENTS is mandatory
+ //PROFLOG_THREAD_EVENTS is mandatory
+
+ if (config.effective_mask & PROFLOG_CALL_EVENTS) {
+ events |= MONO_PROFILE_ENTER_LEAVE;
+ mono_profiler_install_enter_leave (method_enter, method_leave);
+ }
+
+ if (config.effective_mask & PROFLOG_INS_COVERAGE_EVENTS) {
+ events |= MONO_PROFILE_INS_COVERAGE;
+ mono_profiler_install_coverage_filter (coverage_filter);
+ }
+
+ //XXX should we check for PROFLOG_SAMPLING_FEATURE instead??
+ if (config.effective_mask & PROFLOG_SAMPLING_EVENTS) {
+ events |= MONO_PROFILE_STATISTICAL;
+ mono_profiler_set_statistical_mode (config.sampling_mode, config.sample_freq);
+ mono_profiler_install_statistical (mono_sample_hit);
+ }
+
+ if (config.effective_mask & PROFLOG_MONITOR_EVENTS) {
+ events |= MONO_PROFILE_MONITOR_EVENTS;
+ mono_profiler_install_monitor (monitor_event);
+ }
+
+ if (config.effective_mask & PROFLOG_GC_MOVES_EVENTS) {
+ events |= MONO_PROFILE_GC_MOVES;
+ mono_profiler_install_gc_moves (gc_moves);
+ }
+
+ // TODO split those in two profiler events
+ if (config.effective_mask & (PROFLOG_GC_ROOT_EVENTS | PROFLOG_GC_HANDLE_EVENTS)) {
+ events |= MONO_PROFILE_GC_ROOTS;
+ mono_profiler_install_gc_roots (
+ config.effective_mask & (PROFLOG_GC_HANDLE_EVENTS) ? gc_handle : NULL,
+ (config.effective_mask & PROFLOG_GC_ROOT_EVENTS) ? gc_roots : NULL);
+ }
+
+ if (config.effective_mask & PROFLOG_CONTEXT_EVENTS) {
+ events |= MONO_PROFILE_CONTEXT_EVENTS;
+ mono_profiler_install_context (context_loaded, context_unloaded);
+ }
+
+ if (config.effective_mask & PROFLOG_FINALIZATION_EVENTS) {
+ events |= MONO_PROFILE_GC_FINALIZATION;
+ mono_profiler_install_gc_finalize (finalize_begin, finalize_object_begin, finalize_object_end, finalize_end);
+ }
+
+ //PROFLOG_COUNTER_EVENTS is a pseudo event controled by the no_counters global var
+ //PROFLOG_GC_HANDLE_EVENTS is handled together with PROFLOG_GC_ROOT_EVENTS
+
+ mono_profiler_set_events ((MonoProfileFlags)events);
+}
--- /dev/null
+#ifndef __MONO_PROFLOG_H__
+#define __MONO_PROFLOG_H__
+
+#include <glib.h>
+#include <mono/metadata/profiler.h>
+
+#define BUF_ID 0x4D504C01
+#define LOG_HEADER_ID 0x4D505A01
+#define LOG_VERSION_MAJOR 1
+#define LOG_VERSION_MINOR 1
+#define LOG_DATA_VERSION 13
+
+/*
+ * Changes in major/minor versions:
+ * version 1.0: removed sysid field from header
+ * added args, arch, os fields to header
+ *
+ * Changes in data versions:
+ * version 2: added offsets in heap walk
+ * version 3: added GC roots
+ * version 4: added sample/statistical profiling
+ * version 5: added counters sampling
+ * version 6: added optional backtrace in sampling info
+ * version 8: added TYPE_RUNTIME and JIT helpers/trampolines
+ * version 9: added MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING
+ * version 10: added TYPE_COVERAGE
+ * version 11: added thread ID to TYPE_SAMPLE_HIT
+ added more load/unload events
+ unload for class
+ unload for image
+ load/unload for appdomain
+ load/unload for contexts
+ load/unload/name for assemblies
+ removed TYPE_LOAD_ERR flag (profiler never generated it, now removed from the format itself)
+ added TYPE_GC_HANDLE_{CREATED,DESTROYED}_BT
+ TYPE_JIT events are no longer guaranteed to have code start/size info (can be zero)
+ * version 12: added MONO_COUNTER_PROFILER
+ * version 13: added MONO_GC_EVENT_{PRE_STOP_WORLD_LOCKED,POST_START_WORLD_UNLOCKED}
+ added TYPE_META + TYPE_SYNC_POINT
+ removed il and native offset in TYPE_SAMPLE_HIT
+ methods in backtraces are now encoded as proper method pointers
+ removed flags in backtrace format
+ removed flags in metadata events
+ changed the following fields to a single byte rather than leb128
+ TYPE_GC_EVENT: event_type, generation
+ TYPE_HEAP_ROOT: root_type
+ TYPE_JITHELPER: type
+ TYPE_SAMPLE_HIT: sample_type
+ TYPE_CLAUSE: clause_type
+ TYPE_SAMPLE_COUNTERS_DESC: type, unit, variance
+ TYPE_SAMPLE_COUNTERS: type
+ added time fields to all events that were missing one
+ TYPE_HEAP_OBJECT
+ TYPE_HEAP_ROOT
+ TYPE_SAMPLE_USYM
+ TYPE_SAMPLE_COUNTERS_DESC
+ TYPE_COVERAGE_METHOD
+ TYPE_COVERAGE_STATEMENT
+ TYPE_COVERAGE_CLASS
+ TYPE_COVERAGE_ASSEMBLY
+ moved the time field in TYPE_SAMPLE_HIT to right after the event byte, now encoded as a regular time field
+ changed the time field in TYPE_SAMPLE_COUNTERS to be encoded as a regular time field (in nanoseconds)
+ added TYPE_GC_FINALIZE_{START,END,OBJECT_START,OBJECT_END}
+ */
+
+enum {
+ TYPE_ALLOC,
+ TYPE_GC,
+ TYPE_METADATA,
+ TYPE_METHOD,
+ TYPE_EXCEPTION,
+ TYPE_MONITOR,
+ TYPE_HEAP,
+ TYPE_SAMPLE,
+ TYPE_RUNTIME,
+ TYPE_COVERAGE,
+ TYPE_META,
+ /* extended type for TYPE_HEAP */
+ TYPE_HEAP_START = 0 << 4,
+ TYPE_HEAP_END = 1 << 4,
+ TYPE_HEAP_OBJECT = 2 << 4,
+ TYPE_HEAP_ROOT = 3 << 4,
+ /* extended type for TYPE_METADATA */
+ TYPE_END_LOAD = 2 << 4,
+ TYPE_END_UNLOAD = 4 << 4,
+ /* extended type for TYPE_GC */
+ TYPE_GC_EVENT = 1 << 4,
+ TYPE_GC_RESIZE = 2 << 4,
+ TYPE_GC_MOVE = 3 << 4,
+ TYPE_GC_HANDLE_CREATED = 4 << 4,
+ TYPE_GC_HANDLE_DESTROYED = 5 << 4,
+ TYPE_GC_HANDLE_CREATED_BT = 6 << 4,
+ TYPE_GC_HANDLE_DESTROYED_BT = 7 << 4,
+ TYPE_GC_FINALIZE_START = 8 << 4,
+ TYPE_GC_FINALIZE_END = 9 << 4,
+ TYPE_GC_FINALIZE_OBJECT_START = 10 << 4,
+ TYPE_GC_FINALIZE_OBJECT_END = 11 << 4,
+ /* extended type for TYPE_METHOD */
+ TYPE_LEAVE = 1 << 4,
+ TYPE_ENTER = 2 << 4,
+ TYPE_EXC_LEAVE = 3 << 4,
+ TYPE_JIT = 4 << 4,
+ /* extended type for TYPE_EXCEPTION */
+ TYPE_THROW_NO_BT = 0 << 7,
+ TYPE_THROW_BT = 1 << 7,
+ TYPE_CLAUSE = 1 << 4,
+ /* extended type for TYPE_ALLOC */
+ TYPE_ALLOC_NO_BT = 0 << 4,
+ TYPE_ALLOC_BT = 1 << 4,
+ /* extended type for TYPE_MONITOR */
+ TYPE_MONITOR_NO_BT = 0 << 7,
+ TYPE_MONITOR_BT = 1 << 7,
+ /* extended type for TYPE_SAMPLE */
+ TYPE_SAMPLE_HIT = 0 << 4,
+ TYPE_SAMPLE_USYM = 1 << 4,
+ TYPE_SAMPLE_UBIN = 2 << 4,
+ TYPE_SAMPLE_COUNTERS_DESC = 3 << 4,
+ TYPE_SAMPLE_COUNTERS = 4 << 4,
+ /* extended type for TYPE_RUNTIME */
+ TYPE_JITHELPER = 1 << 4,
+ /* extended type for TYPE_COVERAGE */
+ TYPE_COVERAGE_ASSEMBLY = 0 << 4,
+ TYPE_COVERAGE_METHOD = 1 << 4,
+ TYPE_COVERAGE_STATEMENT = 2 << 4,
+ TYPE_COVERAGE_CLASS = 3 << 4,
+ /* extended type for TYPE_META */
+ TYPE_SYNC_POINT = 0 << 4,
+ TYPE_END
+};
+
+enum {
+ /* metadata type byte for TYPE_METADATA */
+ TYPE_CLASS = 1,
+ TYPE_IMAGE = 2,
+ TYPE_ASSEMBLY = 3,
+ TYPE_DOMAIN = 4,
+ TYPE_THREAD = 5,
+ TYPE_CONTEXT = 6,
+};
+
+typedef enum {
+ SYNC_POINT_PERIODIC,
+ SYNC_POINT_WORLD_STOP,
+ SYNC_POINT_WORLD_START
+} MonoProfilerSyncPointType;
+
+// Sampling sources
+// Unless you have compiled with --enable-perf-events, only SAMPLE_CYCLES is available
+enum {
+ SAMPLE_CYCLES = 1,
+ SAMPLE_INSTRUCTIONS,
+ SAMPLE_CACHE_MISSES,
+ SAMPLE_CACHE_REFS,
+ SAMPLE_BRANCHES,
+ SAMPLE_BRANCH_MISSES,
+ SAMPLE_LAST
+};
+
+
+// If you alter MAX_FRAMES, you may need to alter SAMPLE_BLOCK_SIZE too.
+#define MAX_FRAMES 32
+
+//The following flags control emitting individual events
+#define PROFLOG_DOMAIN_EVENTS (1 << 0)
+#define PROFLOG_ASSEMBLY_EVENTS (1 << 1)
+#define PROFLOG_MODULE_EVENTS (1 << 2)
+#define PROFLOG_CLASS_EVENTS (1 << 3)
+#define PROFLOG_JIT_COMPILATION_EVENTS (1 << 4)
+#define PROFLOG_EXCEPTION_EVENTS (1 << 5)
+#define PROFLOG_ALLOCATION_EVENTS (1 << 6)
+#define PROFLOG_GC_EVENTS (1 << 7)
+#define PROFLOG_THREAD_EVENTS (1 << 8)
+//This generate enter/leave events
+#define PROFLOG_CALL_EVENTS (1 << 9)
+#define PROFLOG_INS_COVERAGE_EVENTS (1 << 10)
+#define PROFLOG_SAMPLING_EVENTS (1 << 11)
+#define PROFLOG_MONITOR_EVENTS (1 << 12)
+#define PROFLOG_GC_MOVES_EVENTS (1 << 13)
+
+#define PROFLOG_GC_ROOT_EVENTS (1 << 14)
+#define PROFLOG_CONTEXT_EVENTS (1 << 15)
+#define PROFLOG_FINALIZATION_EVENTS (1 << 16)
+#define PROFLOG_COUNTER_EVENTS (1 << 17)
+#define PROFLOG_GC_HANDLE_EVENTS (1 << 18)
+
+//The following flags control whole subsystems
+//Enables code coverage generation
+#define PROFLOG_CODE_COV_FEATURE (1 << 19)
+//This enables sampling to be generated
+#define PROFLOG_SAMPLING_FEATURE (1 << 20)
+//This enable heap dumping during GCs and filter GCRoots and GCHandle events outside of the dumped collections
+#define PROFLOG_HEAPSHOT_FEATURE (1 << 21)
+
+
+
+//The follow flags are the common aliases we want ppl to use
+#define PROFLOG_TYPELOADING_ALIAS (PROFLOG_DOMAIN_EVENTS | PROFLOG_ASSEMBLY_EVENTS | PROFLOG_MODULE_EVENTS | PROFLOG_CLASS_EVENTS)
+#define PROFLOG_CODECOV_ALIAS (PROFLOG_GC_EVENTS | PROFLOG_THREAD_EVENTS | PROFLOG_CALL_EVENTS | PROFLOG_INS_COVERAGE_EVENTS | PROFLOG_CODE_COV_FEATURE)
+#define PROFLOG_PERF_SAMPLING_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_THREAD_EVENTS | PROFLOG_SAMPLING_EVENTS | PROFLOG_SAMPLING_FEATURE)
+#define PROFLOG_GC_ALLOC_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_THREAD_EVENTS | PROFLOG_GC_EVENTS | PROFLOG_ALLOCATION_EVENTS)
+#define PROFLOG_HEAPSHOT_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_THREAD_EVENTS | PROFLOG_GC_EVENTS | PROFLOG_GC_ROOT_EVENTS | PROFLOG_HEAPSHOT_FEATURE)
+#define PROFLOG_LEGACY_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_GC_EVENTS | PROFLOG_THREAD_EVENTS | PROFLOG_JIT_COMPILATION_EVENTS | PROFLOG_EXCEPTION_EVENTS | PROFLOG_MONITOR_EVENTS | PROFLOG_GC_ROOT_EVENTS | PROFLOG_CONTEXT_EVENTS | PROFLOG_FINALIZATION_EVENTS | PROFLOG_COUNTER_EVENTS)
+
+
+typedef struct {
+ //Events explicitly enabled
+ int enable_mask;
+ //Events explicitly disabled
+ int disable_mask;
+
+ //Actual mask the profiler should use
+ int effective_mask;
+
+ //Emit a report at the end of execution
+ gboolean do_report;
+
+ //Enable profiler internal debugging
+ gboolean do_debug;
+
+ //Enable code coverage specific debugging
+ gboolean debug_coverage;
+
+ //Where to compress the output file
+ gboolean use_zip;
+
+ //If true, don't generate stacktraces
+ gboolean notraces;
+
+ //If true, emit coverage but don't emit enter/exit events - this happens cuz they share an event
+ gboolean only_coverage;
+
+ //If true, heapshots are generated on demand only
+ gboolean hs_mode_ondemand;
+
+ //HeapShort frequency in milliseconds
+ unsigned int hs_mode_ms;
+
+ //HeapShort frequency in number of collections
+ unsigned int hs_mode_gc;
+
+ //Sample frequency in Hertz
+ int sample_freq;
+
+ //Maximum number of frames to collect
+ int num_frames;
+
+ //Max depth to record enter/leave events
+ int max_call_depth;
+
+ //Name of the generated mlpd file
+ const char *output_filename;
+
+ //Filter files used by the code coverage mode
+ GPtrArray *cov_filter_files;
+
+ //Port to listen for profiling commands
+ int command_port;
+
+ //Max size of the sample hit buffer, we'll drop frames if it's reached
+ int max_allocated_sample_hits;
+
+ MonoProfileSamplingMode sampling_mode;
+} ProfilerConfig;
+
+void proflog_parse_args (ProfilerConfig *config, const char *desc);
+
+#endif /* __MONO_PROFLOG_H__ */
+++ /dev/null
-/*
- * mono-profiler-aot.c: Ahead of Time Compiler Profiler for Mono.
- *
- *
- * Copyright 2008-2009 Novell, Inc (http://www.novell.com)
- *
- * This profiler collects profiling information usable by the Mono AOT compiler
- * to generate better code. It saves the information into files under ~/.mono.
- * The AOT compiler can load these files during compilation.
- * Currently, only the order in which methods were compiled is saved,
- * allowing more efficient function ordering in the AOT files.
- * Licensed under the MIT license. See LICENSE file in the project root for full license information.
- */
-
-#include <config.h>
-
-#include "mono-profiler-aot.h"
-
-#include <mono/metadata/profiler.h>
-#include <mono/metadata/tokentype.h>
-#include <mono/metadata/tabledefs.h>
-#include <mono/metadata/debug-helpers.h>
-#include <mono/metadata/assembly.h>
-#include <mono/metadata/class-internals.h>
-#include <mono/utils/mono-os-mutex.h>
-#include <string.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <glib.h>
-#include <sys/stat.h>
-
-#ifdef HOST_WIN32
-#include <direct.h>
-#endif
-
-struct _MonoProfiler {
- GHashTable *classes;
- GHashTable *images;
- GPtrArray *methods;
- FILE *outfile;
- int id;
- char *outfile_name;
-};
-
-static mono_mutex_t mutex;
-static gboolean verbose;
-
-static void
-prof_jit_enter (MonoProfiler *prof, MonoMethod *method)
-{
-}
-
-static void
-prof_jit_leave (MonoProfiler *prof, MonoMethod *method, int result)
-{
- MonoImage *image = mono_class_get_image (mono_method_get_class (method));
-
- if (!image->assembly || method->wrapper_type)
- return;
-
- mono_os_mutex_lock (&mutex);
- g_ptr_array_add (prof->methods, method);
- mono_os_mutex_unlock (&mutex);
-}
-
-static void
-prof_shutdown (MonoProfiler *prof);
-
-static void
-usage (int do_exit)
-{
- printf ("AOT profiler.\n");
- printf ("Usage: mono --profile=aot[:OPTION1[,OPTION2...]] program.exe\n");
- printf ("Options:\n");
- printf ("\thelp show this usage info\n");
- printf ("\toutput=FILENAME write the data to file FILENAME (required)\n");
- printf ("\tverbose print diagnostic info\n");
- if (do_exit)
- exit (1);
-}
-
-static const char*
-match_option (const char* p, const char *opt, char **rval)
-{
- int len = strlen (opt);
- if (strncmp (p, opt, len) == 0) {
- if (rval) {
- if (p [len] == '=' && p [len + 1]) {
- const char *opt = p + len + 1;
- const char *end = strchr (opt, ',');
- char *val;
- int l;
- if (end == NULL) {
- l = strlen (opt);
- } else {
- l = end - opt;
- }
- val = (char *) g_malloc (l + 1);
- memcpy (val, opt, l);
- val [l] = 0;
- *rval = val;
- return opt + l;
- }
- if (p [len] == 0 || p [len] == ',') {
- *rval = NULL;
- return p + len + (p [len] == ',');
- }
- usage (1);
- } else {
- if (p [len] == 0)
- return p + len;
- if (p [len] == ',')
- return p + len + 1;
- }
- }
- return p;
-}
-
-void
-mono_profiler_startup (const char *desc);
-
-/**
- * mono_profiler_startup:
- * the entry point
- */
-void
-mono_profiler_startup (const char *desc)
-{
- MonoProfiler *prof;
- const char *p;
- const char *opt;
- char *outfile_name;
-
- p = desc;
- if (strncmp (p, "aot", 3))
- usage (1);
- p += 3;
- if (*p == ':')
- p++;
- for (; *p; p = opt) {
- char *val;
- if (*p == ',') {
- opt = p + 1;
- continue;
- }
- if ((opt = match_option (p, "help", NULL)) != p) {
- usage (0);
- continue;
- }
- if ((opt = match_option (p, "verbose", NULL)) != p) {
- verbose = TRUE;
- continue;
- }
- if ((opt = match_option (p, "output", &val)) != p) {
- outfile_name = val;
- continue;
- }
- fprintf (stderr, "mono-profiler-aot: Unknown option: '%s'.\n", p);
- exit (1);
- }
-
- if (!outfile_name) {
- fprintf (stderr, "mono-profiler-aot: The 'output' argument is required.\n");
- exit (1);
- }
-
- prof = g_new0 (MonoProfiler, 1);
- prof->images = g_hash_table_new (NULL, NULL);
- prof->classes = g_hash_table_new (NULL, NULL);
- prof->methods = g_ptr_array_new ();
- prof->outfile_name = outfile_name;
-
- mono_os_mutex_init (&mutex);
-
- mono_profiler_install (prof, prof_shutdown);
-
- mono_profiler_install_jit_compile (prof_jit_enter, prof_jit_leave);
-
- mono_profiler_set_events (MONO_PROFILE_JIT_COMPILATION);
-}
-
-static void
-emit_byte (MonoProfiler *prof, guint8 value)
-{
- fwrite (&value, 1, 1, prof->outfile);
-}
-
-static void
-emit_int32 (MonoProfiler *prof, int value)
-{
- // FIXME: Endianness
- fwrite (&value, 4, 1, prof->outfile);
-}
-
-static void
-emit_string (MonoProfiler *prof, const char *str)
-{
- int len = strlen (str);
-
- emit_int32 (prof, len);
- fwrite (str, len, 1, prof->outfile);
-}
-
-static void
-emit_record (MonoProfiler *prof, AotProfRecordType type, int id)
-{
- emit_byte (prof, type);
- emit_int32 (prof, id);
-}
-
-static int
-add_image (MonoProfiler *prof, MonoImage *image)
-{
- int id = GPOINTER_TO_INT (g_hash_table_lookup (prof->images, image));
- if (id)
- return id - 1;
-
- id = prof->id ++;
- emit_record (prof, AOTPROF_RECORD_IMAGE, id);
- emit_string (prof, image->assembly->aname.name);
- emit_string (prof, image->guid);
- g_hash_table_insert (prof->images, image, GINT_TO_POINTER (id + 1));
- return id;
-}
-
-static int
-add_class (MonoProfiler *prof, MonoClass *klass);
-
-static int
-add_type (MonoProfiler *prof, MonoType *type)
-{
- switch (type->type) {
-#if 0
- case MONO_TYPE_SZARRAY: {
- int eid = add_type (prof, &type->data.klass->byval_arg);
- if (eid == -1)
- return -1;
- int id = prof->id ++;
- emit_record (prof, AOTPROF_RECORD_TYPE, id);
- emit_byte (prof, MONO_TYPE_SZARRAY);
- emit_int32 (prof, id);
- return id;
- }
-#endif
- case MONO_TYPE_BOOLEAN:
- case MONO_TYPE_CHAR:
- case MONO_TYPE_I1:
- case MONO_TYPE_U1:
- case MONO_TYPE_I2:
- case MONO_TYPE_U2:
- case MONO_TYPE_I4:
- case MONO_TYPE_U4:
- case MONO_TYPE_I8:
- case MONO_TYPE_U8:
- case MONO_TYPE_R4:
- case MONO_TYPE_R8:
- case MONO_TYPE_I:
- case MONO_TYPE_U:
- case MONO_TYPE_OBJECT:
- case MONO_TYPE_STRING:
- case MONO_TYPE_CLASS:
- case MONO_TYPE_VALUETYPE:
- case MONO_TYPE_GENERICINST:
- return add_class (prof, mono_class_from_mono_type (type));
- default:
- return -1;
- }
-}
-
-static int
-add_ginst (MonoProfiler *prof, MonoGenericInst *inst)
-{
- int i, id;
- int *ids;
-
- // FIXME: Cache
- ids = g_malloc0 (inst->type_argc * sizeof (int));
- for (i = 0; i < inst->type_argc; ++i) {
- MonoType *t = inst->type_argv [i];
- ids [i] = add_type (prof, t);
- if (ids [i] == -1) {
- g_free (ids);
- return -1;
- }
- }
- id = prof->id ++;
- emit_record (prof, AOTPROF_RECORD_GINST, id);
- emit_int32 (prof, inst->type_argc);
- for (i = 0; i < inst->type_argc; ++i)
- emit_int32 (prof, ids [i]);
- g_free (ids);
-
- return id;
-}
-
-static int
-add_class (MonoProfiler *prof, MonoClass *klass)
-{
- int id, inst_id = -1, image_id;
- char *name;
-
- id = GPOINTER_TO_INT (g_hash_table_lookup (prof->classes, klass));
- if (id)
- return id - 1;
-
- image_id = add_image (prof, klass->image);
-
- if (mono_class_is_ginst (klass)) {
- MonoGenericContext *ctx = mono_class_get_context (klass);
- inst_id = add_ginst (prof, ctx->class_inst);
- if (inst_id == -1)
- return -1;
- }
-
- if (klass->nested_in)
- name = g_strdup_printf ("%s.%s/%s", klass->nested_in->name_space, klass->nested_in->name, klass->name);
- else
- name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
-
- id = prof->id ++;
- emit_record (prof, AOTPROF_RECORD_TYPE, id);
- emit_byte (prof, MONO_TYPE_CLASS);
- emit_int32 (prof, image_id);
- emit_int32 (prof, inst_id);
- emit_string (prof, name);
- g_free (name);
- g_hash_table_insert (prof->classes, klass, GINT_TO_POINTER (id + 1));
- return id;
-}
-
-static void
-add_method (MonoProfiler *prof, MonoMethod *m)
-{
- MonoError error;
- MonoMethodSignature *sig;
- char *s;
-
- sig = mono_method_signature_checked (m, &error);
- g_assert (mono_error_ok (&error));
-
- int class_id = add_class (prof, m->klass);
- if (class_id == -1)
- return;
- int inst_id = -1;
-
- if (m->is_inflated) {
- MonoGenericContext *ctx = mono_method_get_context (m);
- if (ctx->method_inst)
- inst_id = add_ginst (prof, ctx->method_inst);
- }
- int id = prof->id ++;
- emit_record (prof, AOTPROF_RECORD_METHOD, id);
- emit_int32 (prof, class_id);
- emit_int32 (prof, inst_id);
- emit_int32 (prof, sig->param_count);
- emit_string (prof, m->name);
- s = mono_signature_full_name (sig);
- emit_string (prof, s);
- g_free (s);
- if (verbose)
- printf ("%s %d\n", mono_method_full_name (m, 1), id);
-}
-
-/* called at the end of the program */
-static void
-prof_shutdown (MonoProfiler *prof)
-{
- FILE *outfile;
- int mindex;
- char magic [32];
-
- printf ("Creating output file: %s\n", prof->outfile_name);
-
- if (prof->outfile_name [0] == '#') {
- int fd = strtol (prof->outfile_name + 1, NULL, 10);
- outfile = fdopen (fd, "a");
- } else {
- outfile = fopen (prof->outfile_name, "w+");
- }
- if (!outfile) {
- fprintf (stderr, "Unable to create output file '%s': %s.\n", prof->outfile_name, strerror (errno));
- return;
- }
- prof->outfile = outfile;
-
- gint32 version = (AOT_PROFILER_MAJOR_VERSION << 16) | AOT_PROFILER_MINOR_VERSION;
- sprintf (magic, AOT_PROFILER_MAGIC);
- fwrite (magic, strlen (magic), 1, outfile);
- emit_int32 (prof, version);
-
- GHashTable *all_methods = g_hash_table_new (NULL, NULL);
- for (mindex = 0; mindex < prof->methods->len; ++mindex) {
- MonoMethod *m = (MonoMethod*)g_ptr_array_index (prof->methods, mindex);
-
- if (!mono_method_get_token (m))
- continue;
-
- if (g_hash_table_lookup (all_methods, m))
- continue;
- g_hash_table_insert (all_methods, m, m);
-
- add_method (prof, m);
- }
- emit_record (prof, AOTPROF_RECORD_NONE, 0);
-
- fclose (outfile);
-
- g_hash_table_destroy (all_methods);
- g_hash_table_destroy (prof->classes);
- g_hash_table_destroy (prof->images);
- g_ptr_array_free (prof->methods, TRUE);
- g_free (prof->outfile_name);
-}
+++ /dev/null
-#ifndef __MONO_PROFILER_AOT_H__
-#define __MONO_PROFILER_AOT_H__
-
-#include <config.h>
-
-/*
- * File format:
- * - magic
- * - major/minor version as an int, i.e. 0x00010001
- * - sequence of records terminated by a record with type TYPE_NONE
- * Record format:
- * - 1 byte record type (AotProfRecordType)
- * - 1 int record id
- * - record specific data
- * Encoding rules:
- * - int - 4 bytes little endian
- * - string - int length followed by data
- */
-
-typedef enum {
- AOTPROF_RECORD_NONE,
- AOTPROF_RECORD_IMAGE,
- AOTPROF_RECORD_TYPE,
- AOTPROF_RECORD_GINST,
- AOTPROF_RECORD_METHOD
-} AotProfRecordType;
-
-#define AOT_PROFILER_MAGIC "AOTPROFILE"
-
-#define AOT_PROFILER_MAJOR_VERSION 1
-#define AOT_PROFILER_MINOR_VERSION 0
-
-#endif /* __MONO_PROFILER_AOT_H__ */
+++ /dev/null
-/*
- * mono-profiler-iomap.c: IOMAP string profiler for Mono.
- *
- * Authors:
- * Marek Habersack <mhabersack@novell.com>
- *
- * Copyright (c) 2009 Novell, Inc (http://novell.com)
- *
- * Note: this profiler is completely unsafe wrt handling managed objects,
- * don't use and don't copy code from here.
- * Licensed under the MIT license. See LICENSE file in the project root for full license information.
- */
-#include "config.h"
-
-#include <string.h>
-#include <mono/utils/mono-io-portability.h>
-#include <mono/metadata/metadata.h>
-#include <mono/metadata/metadata-internals.h>
-#include <mono/metadata/class.h>
-#include <mono/metadata/class-internals.h>
-#include <mono/metadata/object-internals.h>
-#include <mono/metadata/image.h>
-#include <mono/metadata/mono-debug.h>
-#include <mono/metadata/debug-helpers.h>
-#include <mono/metadata/threads.h>
-#include <mono/metadata/profiler.h>
-#include <mono/metadata/loader.h>
-#include <mono/utils/mono-os-mutex.h>
-
-#define LOCATION_INDENT " "
-#define BACKTRACE_SIZE 64
-
-typedef struct _MonoStackBacktraceInfo
-{
- MonoMethod *method;
- gint native_offset;
-} MonoStackBacktraceInfo;
-
-typedef struct
-{
- guint32 count;
- gchar *requestedName;
- gchar *actualName;
-} MismatchedFilesStats;
-
-typedef struct _SavedString
-{
- MonoString *string;
- MonoDomain *domain;
- void *stack [BACKTRACE_SIZE];
- gint stack_entries;
- struct _SavedString *next;
-} SavedString;
-
-typedef struct _SavedStringFindInfo
-{
- guint32 hash;
- size_t len;
-} SavedStringFindInfo;
-
-typedef struct _StringLocation
-{
- gchar *hint;
- struct _StringLocation *next;
-} StringLocation;
-
-struct _MonoProfiler
-{
- GHashTable *mismatched_files_hash;
- GHashTable *saved_strings_hash;
- GHashTable *string_locations_hash;
- gboolean may_have_locations;
-};
-
-typedef struct _StackWalkData
-{
- MonoProfiler *prof;
- void **stack;
- int stack_size;
- int frame_count;
-} StackWalkData;
-
-static mono_mutex_t mismatched_files_section;
-static gboolean runtime_initialized = FALSE;
-
-static inline void append_report (GString **report, const gchar *format, ...);
-static inline void print_report (const gchar *format, ...);
-static inline guint32 do_calc_string_hash (guint32 hash, const gchar *str);
-static inline guint32 calc_strings_hash (const gchar *str1, const gchar *str2, guint32 *str1hash);
-static void print_mismatched_stats (MonoProfiler *prof);
-static inline gchar *build_hint (SavedString *head);
-static inline gchar *build_hint_from_stack (MonoDomain *domain, void **stack, gint stack_entries);
-static inline void store_string_location (MonoProfiler *prof, const gchar *string, guint32 hash, size_t len);
-static void mono_portability_remember_string (MonoProfiler *prof, MonoDomain *domain, MonoString *str);
-void mono_profiler_startup (const char *desc);
-
-static void mismatched_stats_foreach_func (gpointer key, gpointer value, gpointer user_data)
-{
- MismatchedFilesStats *stats = (MismatchedFilesStats*)value;
- StringLocation *location;
- MonoProfiler *prof = (MonoProfiler*)user_data;
- guint32 hash;
- gboolean bannerShown = FALSE;
-
- hash = do_calc_string_hash (0, stats->requestedName);
- fprintf (stdout,
- " Count: %u\n"
- "Requested: %s\n"
- " Actual: %s\n",
- stats->count, stats->requestedName, stats->actualName);
-
- if (!prof->may_have_locations) {
- fprintf (stdout, "\n");
- return;
- }
-
- location = (StringLocation *)g_hash_table_lookup (prof->string_locations_hash, &hash);
- while (location) {
- if (location->hint && strlen (location->hint) > 0) {
- if (!bannerShown) {
- fprintf (stdout, "Locations:\n");
- bannerShown = TRUE;
- }
- fprintf (stdout, "%s", location->hint);
- }
- location = location->next;
- if (location)
- fprintf (stdout, LOCATION_INDENT "--\n");
- }
-
- fprintf (stdout, "\n");
-}
-
-static void print_mismatched_stats (MonoProfiler *prof)
-{
- if (!prof->mismatched_files_hash || g_hash_table_size (prof->mismatched_files_hash) == 0)
- return;
-
- prof->may_have_locations = g_hash_table_size (prof->string_locations_hash) > 0;
-
- fprintf (stdout, "\n-=-=-=-=-=-=-= MONO_IOMAP Stats -=-=-=-=-=-=-=\n");
- g_hash_table_foreach (prof->mismatched_files_hash, mismatched_stats_foreach_func, (gpointer)prof);
- fflush (stdout);
-}
-
-static guint mismatched_files_guint32_hash (gconstpointer key)
-{
- if (!key)
- return 0;
-
- return *((guint32*)key);
-}
-
-static gboolean mismatched_files_guint32_equal (gconstpointer key1, gconstpointer key2)
-{
- if (!key1 || !key2)
- return FALSE;
-
- return (gboolean)(*((guint32*)key1) == *((guint32*)key2));
-}
-
-static inline guint32 do_calc_string_hash (guint32 hash, const gchar *str)
-{
- guint32 ret = hash;
- gchar *cc = (gchar*)str;
- gchar *end = (gchar*)(str + strlen (str) - 1);
-
- for (; cc < end; cc += 2) {
- ret = (ret << 5) - ret + *cc;
- ret = (ret << 5) - ret + cc [1];
- }
- end++;
- if (cc < end)
- ret = (ret << 5) - ret + *cc;
-
- return ret;
-}
-
-static inline guint32 calc_strings_hash (const gchar *str1, const gchar *str2, guint32 *str1hash)
-{
- guint32 hash = do_calc_string_hash (0, str1);
- if (str1hash)
- *str1hash = hash;
- return do_calc_string_hash (hash, str2);
-}
-
-static inline void print_report (const gchar *format, ...)
-{
- MonoError error;
- MonoClass *klass;
- MonoProperty *prop;
- MonoString *str;
- char *stack_trace;
- va_list ap;
-
- fprintf (stdout, "-=-=-=-=-=-=- MONO_IOMAP REPORT -=-=-=-=-=-=-\n");
- va_start (ap, format);
- vfprintf (stdout, format, ap);
- fprintf (stdout, "\n");
- va_end (ap);
- klass = mono_class_load_from_name (mono_get_corlib (), "System", "Environment");
- mono_class_init (klass);
- prop = mono_class_get_property_from_name (klass, "StackTrace");
- str = (MonoString*)mono_property_get_value_checked (prop, NULL, NULL, &error);
- mono_error_assert_ok (&error);
- stack_trace = mono_string_to_utf8_checked (str, &error);
- mono_error_assert_ok (&error);
-
- fprintf (stdout, "-= Stack Trace =-\n%s\n\n", stack_trace);
- g_free (stack_trace);
- fflush (stdout);
-}
-
-static inline void append_report (GString **report, const gchar *format, ...)
-{
- va_list ap;
- if (!*report)
- *report = g_string_new ("");
-
- va_start (ap, format);
- g_string_append_vprintf (*report, format, ap);
- va_end (ap);
-}
-
-static gboolean saved_strings_find_func (gpointer key, gpointer value, gpointer user_data)
-{
- MonoError error;
- SavedStringFindInfo *info = (SavedStringFindInfo*)user_data;
- SavedString *saved = (SavedString*)value;
- gchar *utf_str;
- guint32 hash;
-
- if (!info || !saved || mono_string_length (saved->string) != info->len)
- return FALSE;
-
- utf_str = mono_string_to_utf8_checked (saved->string, &error);
- mono_error_assert_ok (&error);
- hash = do_calc_string_hash (0, utf_str);
- g_free (utf_str);
-
- if (hash != info->hash)
- return FALSE;
-
- return TRUE;
-}
-
-static inline void store_string_location (MonoProfiler *prof, const gchar *string, guint32 hash, size_t len)
-{
- StringLocation *location = (StringLocation *)g_hash_table_lookup (prof->string_locations_hash, &hash);
- SavedString *saved;
- SavedStringFindInfo info;
- guint32 *hashptr;
-
- if (location)
- return;
-
- info.hash = hash;
- info.len = len;
-
- /* Expensive but unavoidable... */
- saved = (SavedString*)g_hash_table_find (prof->saved_strings_hash, saved_strings_find_func, &info);
- hashptr = (guint32*)g_malloc (sizeof (guint32));
- *hashptr = hash;
- location = (StringLocation*)g_malloc0 (sizeof (location));
-
- g_hash_table_insert (prof->string_locations_hash, hashptr, location);
- if (!saved)
- return;
-
- g_hash_table_remove (prof->saved_strings_hash, saved->string);
- location->hint = build_hint (saved);
-}
-
-static gboolean ignore_frame (MonoMethod *method)
-{
- MonoClass *klass = method->klass;
-
- if (method->wrapper_type != MONO_WRAPPER_NONE)
- return TRUE;
-
- /* Now ignore the assemblies we know shouldn't contain mixed-case names (only the most frequent cases) */
- if (klass->image ) {
- if (strcmp (klass->image->assembly_name, "mscorlib") == 0)
- return TRUE;
- else if (strcmp (klass->image->assembly_name, "System") == 0)
- return TRUE;
- else if (strncmp (klass->image->assembly_name, "Mono.", 5) == 0)
- return TRUE;
- else if (strncmp (klass->image->assembly_name, "System.", 7) == 0)
- return TRUE;
- else if (strcmp (klass->image->assembly_name, "PEAPI") == 0)
- return TRUE;
- }
-
- return FALSE;
-}
-
-static inline gchar *build_hint_from_stack (MonoDomain *domain, void **stack, gint stack_entries)
-{
- gchar *hint;
- MonoMethod *method, *selectedMethod;
- MonoAssembly *assembly;
- MonoImage *image;
- MonoDebugSourceLocation *location;
- MonoStackBacktraceInfo *info;
- gboolean use_full_trace;
- char *methodName;
- gint i, native_offset, firstAvailable;
-
- selectedMethod = NULL;
- firstAvailable = -1;
- use_full_trace = FALSE;
- native_offset = -1;
- for (i = 0; i < stack_entries; i++) {
- info = (MonoStackBacktraceInfo*) stack [i];
- method = info ? info->method : NULL;
-
- if (!method || method->wrapper_type != MONO_WRAPPER_NONE)
- continue;
-
- if (firstAvailable == -1)
- firstAvailable = i;
-
- image = method->klass->image;
- assembly = image->assembly;
-
- if ((assembly && assembly->in_gac) || ignore_frame (method))
- continue;
- selectedMethod = method;
- native_offset = info->native_offset;
- break;
- }
-
- if (!selectedMethod) {
- /* All the frames were from assemblies installed in GAC. Find first frame that is
- * not in the ignore list */
- for (i = 0; i < stack_entries; i++) {
- info = (MonoStackBacktraceInfo*) stack [i];
- method = info ? info->method : NULL;
-
- if (!method || ignore_frame (method))
- continue;
- selectedMethod = method;
- native_offset = info->native_offset;
- break;
- }
-
- if (!selectedMethod)
- use_full_trace = TRUE;
- }
-
- hint = NULL;
- if (use_full_trace) {
- GString *trace = g_string_new ("Full trace:\n");
- for (i = firstAvailable; i < stack_entries; i++) {
- info = (MonoStackBacktraceInfo*) stack [i];
- method = info ? info->method : NULL;
- if (!method || method->wrapper_type != MONO_WRAPPER_NONE)
- continue;
-
- location = mono_debug_lookup_source_location (method, info->native_offset, domain);
- methodName = mono_method_full_name (method, TRUE);
-
- if (location) {
- append_report (&trace, LOCATION_INDENT "%s in %s:%u\n", methodName, location->source_file, location->row);
- mono_debug_free_source_location (location);
- } else
- append_report (&trace, LOCATION_INDENT "%s\n", methodName);
- g_free (methodName);
- }
-
- if (trace) {
- if (trace->len)
- hint = g_string_free (trace, FALSE);
- else
- g_string_free (trace, TRUE);
- }
- } else {
- location = mono_debug_lookup_source_location (selectedMethod, native_offset, domain);
- methodName = mono_method_full_name (selectedMethod, TRUE);
-
- if (location) {
- hint = g_strdup_printf (LOCATION_INDENT "%s in %s:%u\n", methodName, location->source_file, location->row);
- mono_debug_free_source_location (location);
- } else
- hint = g_strdup_printf (LOCATION_INDENT "%s\n", methodName);
- g_free (methodName);
- }
-
- return hint;
-}
-
-static inline gchar *build_hint (SavedString *head)
-{
- SavedString *current;
- gchar *tmp;
- GString *hint = NULL;
-
- current = head;
- while (current) {
- tmp = build_hint_from_stack (current->domain, current->stack, current->stack_entries);
- current = current->next;
- if (!tmp)
- continue;
-
- append_report (&hint, tmp);
- }
-
- if (hint) {
- if (hint->len)
- return g_string_free (hint, FALSE);
- else {
- g_string_free (hint, FALSE);
- return NULL;
- }
- }
-
- return NULL;
-}
-
-static gboolean stack_walk_func (MonoMethod *method, gint32 native_offset, gint32 il_offset, gboolean managed, gpointer data)
-{
- StackWalkData *swdata = (StackWalkData*)data;
- MonoStackBacktraceInfo *info;
-
- if (swdata->frame_count >= swdata->stack_size)
- return TRUE;
-
- info = (MonoStackBacktraceInfo*)g_malloc (sizeof (*info));
- info->method = method;
- info->native_offset = native_offset;
-
- swdata->stack [swdata->frame_count++] = info;
- return FALSE;
-}
-
-static inline int mono_stack_backtrace (MonoProfiler *prof, MonoDomain *domain, void **stack, int size)
-{
- StackWalkData data;
-
- data.prof = prof;
- data.stack = stack;
- data.stack_size = size;
- data.frame_count = 0;
-
- mono_stack_walk_no_il (stack_walk_func, (gpointer)&data);
-
- return data.frame_count;
-}
-
-static void mono_portability_remember_string (MonoProfiler *prof, MonoDomain *domain, MonoString *str)
-{
- SavedString *head, *entry;
-
- if (!str || !domain || !runtime_initialized)
- return;
-
- entry = (SavedString*)g_malloc0 (sizeof (SavedString));
- entry->string = str;
- entry->domain = domain;
- entry->stack_entries = mono_stack_backtrace (prof, domain, entry->stack, BACKTRACE_SIZE);
- if (entry->stack_entries == 0) {
- g_free (entry);
- return;
- }
-
- mono_os_mutex_lock (&mismatched_files_section);
- head = (SavedString*)g_hash_table_lookup (prof->saved_strings_hash, (gpointer)str);
- if (head) {
- while (head->next)
- head = head->next;
- head->next = entry;
- } else
- g_hash_table_insert (prof->saved_strings_hash, (gpointer)str, (gpointer)entry);
- mono_os_mutex_unlock (&mismatched_files_section);
-}
-
-static MonoClass *string_class = NULL;
-
-static void mono_portability_remember_alloc (MonoProfiler *prof, MonoObject *obj, MonoClass *klass)
-{
- if (klass != string_class)
- return;
- mono_portability_remember_string (prof, mono_object_get_domain (obj), (MonoString*)obj);
-}
-
-static void mono_portability_iomap_event (MonoProfiler *prof, const char *report, const char *pathname, const char *new_pathname)
-{
- guint32 hash, pathnameHash;
- MismatchedFilesStats *stats;
-
- if (!runtime_initialized)
- return;
-
- mono_os_mutex_lock (&mismatched_files_section);
- hash = calc_strings_hash (pathname, new_pathname, &pathnameHash);
- stats = (MismatchedFilesStats*)g_hash_table_lookup (prof->mismatched_files_hash, &hash);
- if (stats == NULL) {
- guint32 *hashptr;
-
- stats = (MismatchedFilesStats*) g_malloc (sizeof (MismatchedFilesStats));
- stats->count = 1;
- stats->requestedName = g_strdup (pathname);
- stats->actualName = g_strdup (new_pathname);
- hashptr = (guint32*)g_malloc (sizeof (guint32));
- if (hashptr) {
- *hashptr = hash;
- g_hash_table_insert (prof->mismatched_files_hash, (gpointer)hashptr, stats);
- } else
- g_error ("Out of memory allocating integer pointer for mismatched files hash table.");
-
- store_string_location (prof, (const gchar*)stats->requestedName, pathnameHash, strlen (stats->requestedName));
- mono_os_mutex_unlock (&mismatched_files_section);
-
- print_report ("%s - Found file path: '%s'\n", report, new_pathname);
- } else {
- mono_os_mutex_unlock (&mismatched_files_section);
- stats->count++;
- }
-}
-
-static void runtime_initialized_cb (MonoProfiler *prof)
-{
- runtime_initialized = TRUE;
- string_class = mono_get_string_class ();
-}
-
-static void profiler_shutdown (MonoProfiler *prof)
-{
- print_mismatched_stats (prof);
- mono_os_mutex_destroy (&mismatched_files_section);
-}
-
-void mono_profiler_startup (const char *desc)
-{
- MonoProfiler *prof = g_new0 (MonoProfiler, 1);
-
- mono_os_mutex_init (&mismatched_files_section);
- prof->mismatched_files_hash = g_hash_table_new (mismatched_files_guint32_hash, mismatched_files_guint32_equal);
- prof->saved_strings_hash = g_hash_table_new (NULL, NULL);
- prof->string_locations_hash = g_hash_table_new (mismatched_files_guint32_hash, mismatched_files_guint32_equal);
-
- mono_profiler_install (prof, profiler_shutdown);
- mono_profiler_install_runtime_initialized (runtime_initialized_cb);
- mono_profiler_install_iomap (mono_portability_iomap_event);
- mono_profiler_install_allocation (mono_portability_remember_alloc);
-
- mono_profiler_set_events ((MonoProfileFlags)(MONO_PROFILE_ALLOCATIONS | MONO_PROFILE_IOMAP_EVENTS));
-}
+++ /dev/null
-/*
- * mono-profiler-log.c: mono log profiler
- *
- * Authors:
- * Paolo Molaro (lupus@ximian.com)
- * Alex Rønne Petersen (alexrp@xamarin.com)
- *
- * Copyright 2010 Novell, Inc (http://www.novell.com)
- * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
- * Licensed under the MIT license. See LICENSE file in the project root for full license information.
- */
-
-#include <config.h>
-#include <mono/metadata/assembly.h>
-#include <mono/metadata/debug-helpers.h>
-#include "../metadata/metadata-internals.h"
-#include <mono/metadata/mono-config.h>
-#include <mono/metadata/mono-gc.h>
-#include <mono/metadata/mono-perfcounters.h>
-#include <mono/utils/atomic.h>
-#include <mono/utils/hazard-pointer.h>
-#include <mono/utils/lock-free-alloc.h>
-#include <mono/utils/lock-free-queue.h>
-#include <mono/utils/mono-conc-hashtable.h>
-#include <mono/utils/mono-counters.h>
-#include <mono/utils/mono-linked-list-set.h>
-#include <mono/utils/mono-membar.h>
-#include <mono/utils/mono-mmap.h>
-#include <mono/utils/mono-os-mutex.h>
-#include <mono/utils/mono-os-semaphore.h>
-#include <mono/utils/mono-threads.h>
-#include <mono/utils/mono-threads-api.h>
-#include "mono-profiler-log.h"
-
-#ifdef HAVE_DLFCN_H
-#include <dlfcn.h>
-#endif
-#include <fcntl.h>
-#ifdef HAVE_LINK_H
-#include <link.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#if defined(__APPLE__)
-#include <mach/mach_time.h>
-#endif
-#include <netinet/in.h>
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-#include <sys/socket.h>
-#if defined (HAVE_SYS_ZLIB)
-#include <zlib.h>
-#endif
-
-#define BUFFER_SIZE (4096 * 16)
-
-/* Worst-case size in bytes of a 64-bit value encoded with LEB128. */
-#define LEB128_SIZE 10
-
-/* Size of a value encoded as a single byte. */
-#undef BYTE_SIZE // mach/i386/vm_param.h on OS X defines this to 8, but it isn't used for anything.
-#define BYTE_SIZE 1
-
-/* Size in bytes of the event prefix (ID + time). */
-#define EVENT_SIZE (BYTE_SIZE + LEB128_SIZE)
-
-static volatile gint32 runtime_inited;
-static volatile gint32 in_shutdown;
-
-static int nocalls = 0;
-static int notraces = 0;
-static int use_zip = 0;
-static int do_report = 0;
-static int do_heap_shot = 0;
-static int max_call_depth = 0;
-static int command_port = 0;
-static int heapshot_requested = 0;
-static int do_mono_sample = 0;
-static int do_debug = 0;
-static int do_coverage = 0;
-static gboolean no_counters = FALSE;
-static gboolean only_coverage = FALSE;
-static gboolean debug_coverage = FALSE;
-static int max_allocated_sample_hits;
-
-// Statistics for internal profiler data structures.
-static gint32 sample_allocations_ctr,
- buffer_allocations_ctr;
-
-// Statistics for profiler events.
-static gint32 sync_points_ctr,
- heap_objects_ctr,
- heap_starts_ctr,
- heap_ends_ctr,
- heap_roots_ctr,
- gc_events_ctr,
- gc_resizes_ctr,
- gc_allocs_ctr,
- gc_moves_ctr,
- gc_handle_creations_ctr,
- gc_handle_deletions_ctr,
- finalize_begins_ctr,
- finalize_ends_ctr,
- finalize_object_begins_ctr,
- finalize_object_ends_ctr,
- image_loads_ctr,
- image_unloads_ctr,
- assembly_loads_ctr,
- assembly_unloads_ctr,
- class_loads_ctr,
- class_unloads_ctr,
- method_entries_ctr,
- method_exits_ctr,
- method_exception_exits_ctr,
- method_jits_ctr,
- code_buffers_ctr,
- exception_throws_ctr,
- exception_clauses_ctr,
- monitor_contentions_ctr,
- monitor_acquisitions_ctr,
- monitor_failures_ctr,
- thread_starts_ctr,
- thread_ends_ctr,
- thread_names_ctr,
- domain_loads_ctr,
- domain_unloads_ctr,
- domain_names_ctr,
- context_loads_ctr,
- context_unloads_ctr,
- sample_ubins_ctr,
- sample_usyms_ctr,
- sample_hits_ctr,
- counter_descriptors_ctr,
- counter_samples_ctr,
- perfcounter_descriptors_ctr,
- perfcounter_samples_ctr,
- coverage_methods_ctr,
- coverage_statements_ctr,
- coverage_classes_ctr,
- coverage_assemblies_ctr;
-
-static MonoLinkedListSet profiler_thread_list;
-
-/*
- * file format:
- * [header] [buffer]*
- *
- * The file is composed by a header followed by 0 or more buffers.
- * Each buffer contains events that happened on a thread: for a given thread
- * buffers that appear later in the file are guaranteed to contain events
- * that happened later in time. Buffers from separate threads could be interleaved,
- * though.
- * Buffers are not required to be aligned.
- *
- * header format:
- * [id: 4 bytes] constant value: LOG_HEADER_ID
- * [major: 1 byte] [minor: 1 byte] major and minor version of the log profiler
- * [format: 1 byte] version of the data format for the rest of the file
- * [ptrsize: 1 byte] size in bytes of a pointer in the profiled program
- * [startup time: 8 bytes] time in milliseconds since the unix epoch when the program started
- * [timer overhead: 4 bytes] approximate overhead in nanoseconds of the timer
- * [flags: 4 bytes] file format flags, should be 0 for now
- * [pid: 4 bytes] pid of the profiled process
- * [port: 2 bytes] tcp port for server if != 0
- * [args size: 4 bytes] size of args
- * [args: string] arguments passed to the profiler
- * [arch size: 4 bytes] size of arch
- * [arch: string] architecture the profiler is running on
- * [os size: 4 bytes] size of os
- * [os: string] operating system the profiler is running on
- *
- * The multiple byte integers are in little-endian format.
- *
- * buffer format:
- * [buffer header] [event]*
- * Buffers have a fixed-size header followed by 0 or more bytes of event data.
- * Timing information and other values in the event data are usually stored
- * as uleb128 or sleb128 integers. To save space, as noted for each item below,
- * some data is represented as a difference between the actual value and
- * either the last value of the same type (like for timing information) or
- * as the difference from a value stored in a buffer header.
- *
- * For timing information the data is stored as uleb128, since timing
- * increases in a monotonic way in each thread: the value is the number of
- * nanoseconds to add to the last seen timing data in a buffer. The first value
- * in a buffer will be calculated from the time_base field in the buffer head.
- *
- * Object or heap sizes are stored as uleb128.
- * Pointer differences are stored as sleb128, instead.
- *
- * If an unexpected value is found, the rest of the buffer should be ignored,
- * as generally the later values need the former to be interpreted correctly.
- *
- * buffer header format:
- * [bufid: 4 bytes] constant value: BUF_ID
- * [len: 4 bytes] size of the data following the buffer header
- * [time_base: 8 bytes] time base in nanoseconds since an unspecified epoch
- * [ptr_base: 8 bytes] base value for pointers
- * [obj_base: 8 bytes] base value for object addresses
- * [thread id: 8 bytes] system-specific thread ID (pthread_t for example)
- * [method_base: 8 bytes] base value for MonoMethod pointers
- *
- * event format:
- * [extended info: upper 4 bits] [type: lower 4 bits]
- * [time diff: uleb128] nanoseconds since last timing
- * [data]*
- * The data that follows depends on type and the extended info.
- * Type is one of the enum values in mono-profiler-log.h: TYPE_ALLOC, TYPE_GC,
- * TYPE_METADATA, TYPE_METHOD, TYPE_EXCEPTION, TYPE_MONITOR, TYPE_HEAP.
- * The extended info bits are interpreted based on type, see
- * each individual event description below.
- * strings are represented as a 0-terminated utf8 sequence.
- *
- * backtrace format:
- * [num: uleb128] number of frames following
- * [frame: sleb128]* mum MonoMethod* as a pointer difference from the last such
- * pointer or the buffer method_base
- *
- * type alloc format:
- * type: TYPE_ALLOC
- * exinfo: flags: TYPE_ALLOC_BT
- * [ptr: sleb128] class as a byte difference from ptr_base
- * [obj: sleb128] object address as a byte difference from obj_base
- * [size: uleb128] size of the object in the heap
- * If the TYPE_ALLOC_BT flag is set, a backtrace follows.
- *
- * type GC format:
- * type: TYPE_GC
- * exinfo: one of TYPE_GC_EVENT, TYPE_GC_RESIZE, TYPE_GC_MOVE, TYPE_GC_HANDLE_CREATED[_BT],
- * TYPE_GC_HANDLE_DESTROYED[_BT], TYPE_GC_FINALIZE_START, TYPE_GC_FINALIZE_END,
- * TYPE_GC_FINALIZE_OBJECT_START, TYPE_GC_FINALIZE_OBJECT_END
- * if exinfo == TYPE_GC_RESIZE
- * [heap_size: uleb128] new heap size
- * if exinfo == TYPE_GC_EVENT
- * [event type: byte] GC event (MONO_GC_EVENT_* from profiler.h)
- * [generation: byte] GC generation event refers to
- * if exinfo == TYPE_GC_MOVE
- * [num_objects: uleb128] number of object moves that follow
- * [objaddr: sleb128]+ num_objects object pointer differences from obj_base
- * num is always an even number: the even items are the old
- * addresses, the odd numbers are the respective new object addresses
- * if exinfo == TYPE_GC_HANDLE_CREATED[_BT]
- * [handle_type: uleb128] GC handle type (System.Runtime.InteropServices.GCHandleType)
- * upper bits reserved as flags
- * [handle: uleb128] GC handle value
- * [objaddr: sleb128] object pointer differences from obj_base
- * If exinfo == TYPE_GC_HANDLE_CREATED_BT, a backtrace follows.
- * if exinfo == TYPE_GC_HANDLE_DESTROYED[_BT]
- * [handle_type: uleb128] GC handle type (System.Runtime.InteropServices.GCHandleType)
- * upper bits reserved as flags
- * [handle: uleb128] GC handle value
- * If exinfo == TYPE_GC_HANDLE_DESTROYED_BT, a backtrace follows.
- * if exinfo == TYPE_GC_FINALIZE_OBJECT_{START,END}
- * [object: sleb128] the object as a difference from obj_base
- *
- * type metadata format:
- * type: TYPE_METADATA
- * exinfo: one of: TYPE_END_LOAD, TYPE_END_UNLOAD (optional for TYPE_THREAD and TYPE_DOMAIN)
- * [mtype: byte] metadata type, one of: TYPE_CLASS, TYPE_IMAGE, TYPE_ASSEMBLY, TYPE_DOMAIN,
- * TYPE_THREAD, TYPE_CONTEXT
- * [pointer: sleb128] pointer of the metadata type depending on mtype
- * if mtype == TYPE_CLASS
- * [image: sleb128] MonoImage* as a pointer difference from ptr_base
- * [name: string] full class name
- * if mtype == TYPE_IMAGE
- * [name: string] image file name
- * if mtype == TYPE_ASSEMBLY
- * [name: string] assembly name
- * if mtype == TYPE_DOMAIN && exinfo == 0
- * [name: string] domain friendly name
- * if mtype == TYPE_CONTEXT
- * [domain: sleb128] domain id as pointer
- * if mtype == TYPE_THREAD && exinfo == 0
- * [name: string] thread name
- *
- * type method format:
- * type: TYPE_METHOD
- * exinfo: one of: TYPE_LEAVE, TYPE_ENTER, TYPE_EXC_LEAVE, TYPE_JIT
- * [method: sleb128] MonoMethod* as a pointer difference from the last such
- * pointer or the buffer method_base
- * if exinfo == TYPE_JIT
- * [code address: sleb128] pointer to the native code as a diff from ptr_base
- * [code size: uleb128] size of the generated code
- * [name: string] full method name
- *
- * type exception format:
- * type: TYPE_EXCEPTION
- * exinfo: TYPE_THROW_BT flag or one of: TYPE_CLAUSE
- * if exinfo == TYPE_CLAUSE
- * [clause type: byte] MonoExceptionEnum enum value
- * [clause index: uleb128] index of the current clause
- * [method: sleb128] MonoMethod* as a pointer difference from the last such
- * pointer or the buffer method_base
- * else
- * [object: sleb128] the exception object as a difference from obj_base
- * if exinfo has TYPE_THROW_BT set, a backtrace follows.
- *
- * type runtime format:
- * type: TYPE_RUNTIME
- * exinfo: one of: TYPE_JITHELPER
- * if exinfo == TYPE_JITHELPER
- * [type: byte] MonoProfilerCodeBufferType enum value
- * [buffer address: sleb128] pointer to the native code as a diff from ptr_base
- * [buffer size: uleb128] size of the generated code
- * if type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE
- * [name: string] buffer description name
- *
- * type monitor format:
- * type: TYPE_MONITOR
- * exinfo: TYPE_MONITOR_BT flag and one of: MONO_PROFILER_MONITOR_(CONTENTION|FAIL|DONE)
- * [object: sleb128] the lock object as a difference from obj_base
- * if exinfo.low3bits == MONO_PROFILER_MONITOR_CONTENTION
- * If the TYPE_MONITOR_BT flag is set, a backtrace follows.
- *
- * type heap format
- * type: TYPE_HEAP
- * exinfo: one of TYPE_HEAP_START, TYPE_HEAP_END, TYPE_HEAP_OBJECT, TYPE_HEAP_ROOT
- * if exinfo == TYPE_HEAP_OBJECT
- * [object: sleb128] the object as a difference from obj_base
- * [class: sleb128] the object MonoClass* as a difference from ptr_base
- * [size: uleb128] size of the object on the heap
- * [num_refs: uleb128] number of object references
- * each referenced objref is preceded by a uleb128 encoded offset: the
- * first offset is from the object address and each next offset is relative
- * to the previous one
- * [objrefs: sleb128]+ object referenced as a difference from obj_base
- * The same object can appear multiple times, but only the first time
- * with size != 0: in the other cases this data will only be used to
- * provide additional referenced objects.
- * if exinfo == TYPE_HEAP_ROOT
- * [num_roots: uleb128] number of root references
- * [num_gc: uleb128] number of major gcs
- * [object: sleb128] the object as a difference from obj_base
- * [root_type: byte] the root_type: MonoProfileGCRootType (profiler.h)
- * [extra_info: uleb128] the extra_info value
- * object, root_type and extra_info are repeated num_roots times
- *
- * type sample format
- * type: TYPE_SAMPLE
- * exinfo: one of TYPE_SAMPLE_HIT, TYPE_SAMPLE_USYM, TYPE_SAMPLE_UBIN, TYPE_SAMPLE_COUNTERS_DESC, TYPE_SAMPLE_COUNTERS
- * if exinfo == TYPE_SAMPLE_HIT
- * [thread: sleb128] thread id as difference from ptr_base
- * [count: uleb128] number of following instruction addresses
- * [ip: sleb128]* instruction pointer as difference from ptr_base
- * [mbt_count: uleb128] number of managed backtrace frames
- * [method: sleb128]* MonoMethod* as a pointer difference from the last such
- * pointer or the buffer method_base (the first such method can be also indentified by ip, but this is not neccessarily true)
- * if exinfo == TYPE_SAMPLE_USYM
- * [address: sleb128] symbol address as a difference from ptr_base
- * [size: uleb128] symbol size (may be 0 if unknown)
- * [name: string] symbol name
- * if exinfo == TYPE_SAMPLE_UBIN
- * [address: sleb128] address where binary has been loaded
- * [offset: uleb128] file offset of mapping (the same file can be mapped multiple times)
- * [size: uleb128] memory size
- * [name: string] binary name
- * if exinfo == TYPE_SAMPLE_COUNTERS_DESC
- * [len: uleb128] number of counters
- * for i = 0 to len
- * [section: uleb128] section of counter
- * if section == MONO_COUNTER_PERFCOUNTERS:
- * [section_name: string] section name of counter
- * [name: string] name of counter
- * [type: byte] type of counter
- * [unit: byte] unit of counter
- * [variance: byte] variance of counter
- * [index: uleb128] unique index of counter
- * if exinfo == TYPE_SAMPLE_COUNTERS
- * while true:
- * [index: uleb128] unique index of counter
- * if index == 0:
- * break
- * [type: byte] type of counter value
- * if type == string:
- * if value == null:
- * [0: uleb128] 0 -> value is null
- * else:
- * [1: uleb128] 1 -> value is not null
- * [value: string] counter value
- * else:
- * [value: uleb128/sleb128/double] counter value, can be sleb128, uleb128 or double (determined by using type)
- *
- * type coverage format
- * type: TYPE_COVERAGE
- * exinfo: one of TYPE_COVERAGE_METHOD, TYPE_COVERAGE_STATEMENT, TYPE_COVERAGE_ASSEMBLY, TYPE_COVERAGE_CLASS
- * if exinfo == TYPE_COVERAGE_METHOD
- * [assembly: string] name of assembly
- * [class: string] name of the class
- * [name: string] name of the method
- * [signature: string] the signature of the method
- * [filename: string] the file path of the file that contains this method
- * [token: uleb128] the method token
- * [method_id: uleb128] an ID for this data to associate with the buffers of TYPE_COVERAGE_STATEMENTS
- * [len: uleb128] the number of TYPE_COVERAGE_BUFFERS associated with this method
- * if exinfo == TYPE_COVERAGE_STATEMENTS
- * [method_id: uleb128] an the TYPE_COVERAGE_METHOD buffer to associate this with
- * [offset: uleb128] the il offset relative to the previous offset
- * [counter: uleb128] the counter for this instruction
- * [line: uleb128] the line of filename containing this instruction
- * [column: uleb128] the column containing this instruction
- * if exinfo == TYPE_COVERAGE_ASSEMBLY
- * [name: string] assembly name
- * [guid: string] assembly GUID
- * [filename: string] assembly filename
- * [number_of_methods: uleb128] the number of methods in this assembly
- * [fully_covered: uleb128] the number of fully covered methods
- * [partially_covered: uleb128] the number of partially covered methods
- * currently partially_covered will always be 0, and fully_covered is the
- * number of methods that are fully and partially covered.
- * if exinfo == TYPE_COVERAGE_CLASS
- * [name: string] assembly name
- * [class: string] class name
- * [number_of_methods: uleb128] the number of methods in this class
- * [fully_covered: uleb128] the number of fully covered methods
- * [partially_covered: uleb128] the number of partially covered methods
- * currently partially_covered will always be 0, and fully_covered is the
- * number of methods that are fully and partially covered.
- *
- * type meta format:
- * type: TYPE_META
- * exinfo: one of: TYPE_SYNC_POINT
- * if exinfo == TYPE_SYNC_POINT
- * [type: byte] MonoProfilerSyncPointType enum value
- */
-
-// Pending data to be written to the log, for a single thread.
-// Threads periodically flush their own LogBuffers by calling safe_send
-typedef struct _LogBuffer LogBuffer;
-struct _LogBuffer {
- // Next (older) LogBuffer in processing queue
- LogBuffer *next;
-
- uint64_t time_base;
- uint64_t last_time;
- uintptr_t ptr_base;
- uintptr_t method_base;
- uintptr_t last_method;
- uintptr_t obj_base;
- uintptr_t thread_id;
-
- // Bytes allocated for this LogBuffer
- int size;
-
- // Start of currently unused space in buffer
- unsigned char* cursor;
-
- // Pointer to start-of-structure-plus-size (for convenience)
- unsigned char* buf_end;
-
- // Start of data in buffer. Contents follow "buffer format" described above.
- unsigned char buf [1];
-};
-
-typedef struct {
- MonoLinkedListSetNode node;
-
- // Convenience pointer to the profiler structure.
- MonoProfiler *profiler;
-
- // Was this thread added to the LLS?
- gboolean attached;
-
- // The current log buffer for this thread.
- LogBuffer *buffer;
-
- // Methods referenced by events in `buffer`, see `MethodInfo`.
- GPtrArray *methods;
-
- // Current call depth for enter/leave events.
- int call_depth;
-
- // Indicates whether this thread is currently writing to its `buffer`.
- gboolean busy;
-
- // Has this thread written a thread end event to `buffer`?
- gboolean ended;
-} MonoProfilerThread;
-
-static uintptr_t
-thread_id (void)
-{
- return (uintptr_t) mono_native_thread_id_get ();
-}
-
-static uintptr_t
-process_id (void)
-{
-#ifdef HOST_WIN32
- return (uintptr_t) GetCurrentProcessId ();
-#else
- return (uintptr_t) getpid ();
-#endif
-}
-
-#ifdef __APPLE__
-static mach_timebase_info_data_t timebase_info;
-#elif defined (HOST_WIN32)
-static LARGE_INTEGER pcounter_freq;
-#endif
-
-#define TICKS_PER_SEC 1000000000LL
-
-static uint64_t
-current_time (void)
-{
-#ifdef __APPLE__
- uint64_t time = mach_absolute_time ();
-
- time *= timebase_info.numer;
- time /= timebase_info.denom;
-
- return time;
-#elif defined (HOST_WIN32)
- LARGE_INTEGER value;
-
- QueryPerformanceCounter (&value);
-
- return value.QuadPart * TICKS_PER_SEC / pcounter_freq.QuadPart;
-#elif defined (CLOCK_MONOTONIC)
- struct timespec tspec;
-
- clock_gettime (CLOCK_MONOTONIC, &tspec);
-
- return ((uint64_t) tspec.tv_sec * TICKS_PER_SEC + tspec.tv_nsec);
-#else
- struct timeval tv;
-
- gettimeofday (&tv, NULL);
-
- return ((uint64_t) tv.tv_sec * TICKS_PER_SEC + tv.tv_usec * 1000);
-#endif
-}
-
-static int timer_overhead;
-
-static void
-init_time (void)
-{
-#ifdef __APPLE__
- mach_timebase_info (&timebase_info);
-#elif defined (HOST_WIN32)
- QueryPerformanceFrequency (&pcounter_freq);
-#endif
-
- uint64_t time_start = current_time ();
-
- for (int i = 0; i < 256; ++i)
- current_time ();
-
- uint64_t time_end = current_time ();
-
- timer_overhead = (time_end - time_start) / 256;
-}
-
-/*
- * These macros should be used when writing an event to a log buffer. They take
- * care of a bunch of stuff that can be repetitive and error-prone, such as
- * acquiring/releasing the buffer lock, incrementing the event counter,
- * expanding the log buffer, processing requests, etc. They also create a scope
- * so that it's harder to leak the LogBuffer pointer, which can be problematic
- * as the pointer is unstable when the buffer lock isn't acquired.
- */
-
-#define ENTER_LOG(COUNTER, BUFFER, SIZE) \
- do { \
- MonoProfilerThread *thread__ = PROF_TLS_GET (); \
- if (thread__->attached) \
- buffer_lock (); \
- g_assert (!thread__->busy && "Why are we trying to write a new event while already writing one?"); \
- thread__->busy = TRUE; \
- InterlockedIncrement ((COUNTER)); \
- LogBuffer *BUFFER = ensure_logbuf_unsafe (thread__, (SIZE))
-
-#define EXIT_LOG_EXPLICIT(SEND, REQUESTS) \
- thread__->busy = FALSE; \
- if ((SEND)) \
- send_log_unsafe (TRUE); \
- if (thread__->attached) \
- buffer_unlock (); \
- if ((REQUESTS)) \
- process_requests (); \
- } while (0)
-
-// Pass these to EXIT_LOG_EXPLICIT () for easier reading.
-#define DO_SEND TRUE
-#define NO_SEND FALSE
-#define DO_REQUESTS TRUE
-#define NO_REQUESTS FALSE
-
-#define EXIT_LOG EXIT_LOG_EXPLICIT (DO_SEND, DO_REQUESTS)
-
-static volatile gint32 buffer_rwlock_count;
-static volatile gpointer buffer_rwlock_exclusive;
-
-// Can be used recursively.
-static void
-buffer_lock (void)
-{
- /*
- * If the thread holding the exclusive lock tries to modify the
- * reader count, just make it a no-op. This way, we also avoid
- * invoking the GC safe point macros below, which could break if
- * done from a thread that is currently the initiator of STW.
- *
- * In other words, we rely on the fact that the GC thread takes
- * the exclusive lock in the gc_event () callback when the world
- * is about to stop.
- */
- if (InterlockedReadPointer (&buffer_rwlock_exclusive) != (gpointer) thread_id ()) {
- MONO_ENTER_GC_SAFE;
-
- while (InterlockedReadPointer (&buffer_rwlock_exclusive))
- mono_thread_info_yield ();
-
- InterlockedIncrement (&buffer_rwlock_count);
-
- MONO_EXIT_GC_SAFE;
- }
-
- mono_memory_barrier ();
-}
-
-static void
-buffer_unlock (void)
-{
- mono_memory_barrier ();
-
- // See the comment in buffer_lock ().
- if (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id ())
- return;
-
- g_assert (InterlockedRead (&buffer_rwlock_count) && "Why are we trying to decrement a zero reader count?");
-
- InterlockedDecrement (&buffer_rwlock_count);
-}
-
-// Cannot be used recursively.
-static void
-buffer_lock_excl (void)
-{
- gpointer tid = (gpointer) thread_id ();
-
- g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) != tid && "Why are we taking the exclusive lock twice?");
-
- MONO_ENTER_GC_SAFE;
-
- while (InterlockedCompareExchangePointer (&buffer_rwlock_exclusive, tid, 0))
- mono_thread_info_yield ();
-
- while (InterlockedRead (&buffer_rwlock_count))
- mono_thread_info_yield ();
-
- MONO_EXIT_GC_SAFE;
-
- mono_memory_barrier ();
-}
-
-static void
-buffer_unlock_excl (void)
-{
- mono_memory_barrier ();
-
- g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) && "Why is the exclusive lock not held?");
- g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id () && "Why does another thread hold the exclusive lock?");
- g_assert (!InterlockedRead (&buffer_rwlock_count) && "Why are there readers when the exclusive lock is held?");
-
- InterlockedWritePointer (&buffer_rwlock_exclusive, NULL);
-}
-
-typedef struct _BinaryObject BinaryObject;
-struct _BinaryObject {
- BinaryObject *next;
- void *addr;
- char *name;
-};
-
-struct _MonoProfiler {
- FILE* file;
-#if defined (HAVE_SYS_ZLIB)
- gzFile gzfile;
-#endif
- char *args;
- uint64_t startup_time;
- int pipe_output;
- int command_port;
- int server_socket;
- int pipes [2];
- MonoNativeThreadId helper_thread;
- MonoNativeThreadId writer_thread;
- MonoNativeThreadId dumper_thread;
- volatile gint32 run_writer_thread;
- MonoLockFreeAllocSizeClass writer_entry_size_class;
- MonoLockFreeAllocator writer_entry_allocator;
- MonoLockFreeQueue writer_queue;
- MonoSemType writer_queue_sem;
- MonoConcurrentHashTable *method_table;
- mono_mutex_t method_table_mutex;
- volatile gint32 run_dumper_thread;
- MonoLockFreeQueue dumper_queue;
- MonoSemType dumper_queue_sem;
- MonoLockFreeAllocSizeClass sample_size_class;
- MonoLockFreeAllocator sample_allocator;
- MonoLockFreeQueue sample_reuse_queue;
- BinaryObject *binary_objects;
- GPtrArray *coverage_filters;
-};
-
-typedef struct {
- MonoLockFreeQueueNode node;
- GPtrArray *methods;
- LogBuffer *buffer;
-} WriterQueueEntry;
-
-#define WRITER_ENTRY_BLOCK_SIZE (mono_pagesize ())
-
-typedef struct {
- MonoMethod *method;
- MonoJitInfo *ji;
- uint64_t time;
-} MethodInfo;
-
-#ifdef HOST_WIN32
-
-#define PROF_TLS_SET(VAL) (TlsSetValue (profiler_tls, (VAL)))
-#define PROF_TLS_GET() ((MonoProfilerThread *) TlsGetValue (profiler_tls))
-#define PROF_TLS_INIT() (profiler_tls = TlsAlloc ())
-#define PROF_TLS_FREE() (TlsFree (profiler_tls))
-
-static DWORD profiler_tls;
-
-#elif HAVE_KW_THREAD
-
-#define PROF_TLS_SET(VAL) (profiler_tls = (VAL))
-#define PROF_TLS_GET() (profiler_tls)
-#define PROF_TLS_INIT()
-#define PROF_TLS_FREE()
-
-static __thread MonoProfilerThread *profiler_tls;
-
-#else
-
-#define PROF_TLS_SET(VAL) (pthread_setspecific (profiler_tls, (VAL)))
-#define PROF_TLS_GET() ((MonoProfilerThread *) pthread_getspecific (profiler_tls))
-#define PROF_TLS_INIT() (pthread_key_create (&profiler_tls, NULL))
-#define PROF_TLS_FREE() (pthread_key_delete (profiler_tls))
-
-static pthread_key_t profiler_tls;
-
-#endif
-
-static char*
-pstrdup (const char *s)
-{
- int len = strlen (s) + 1;
- char *p = (char *) g_malloc (len);
- memcpy (p, s, len);
- return p;
-}
-
-static void *
-alloc_buffer (int size)
-{
- return mono_valloc (NULL, size, MONO_MMAP_READ | MONO_MMAP_WRITE | MONO_MMAP_ANON | MONO_MMAP_PRIVATE, MONO_MEM_ACCOUNT_PROFILER);
-}
-
-static void
-free_buffer (void *buf, int size)
-{
- mono_vfree (buf, size, MONO_MEM_ACCOUNT_PROFILER);
-}
-
-static LogBuffer*
-create_buffer (uintptr_t tid)
-{
- LogBuffer* buf = (LogBuffer *) alloc_buffer (BUFFER_SIZE);
-
- InterlockedIncrement (&buffer_allocations_ctr);
-
- buf->size = BUFFER_SIZE;
- buf->time_base = current_time ();
- buf->last_time = buf->time_base;
- buf->buf_end = (unsigned char *) buf + buf->size;
- buf->cursor = buf->buf;
- buf->thread_id = tid;
-
- return buf;
-}
-
-/*
- * Must be called with the reader lock held if thread is the current thread, or
- * the exclusive lock if thread is a different thread. However, if thread is
- * the current thread, and init_thread () was called with add_to_lls = FALSE,
- * then no locking is necessary.
- */
-static void
-init_buffer_state (MonoProfilerThread *thread)
-{
- thread->buffer = create_buffer (thread->node.key);
- thread->methods = NULL;
-}
-
-static void
-clear_hazard_pointers (MonoThreadHazardPointers *hp)
-{
- mono_hazard_pointer_clear (hp, 0);
- mono_hazard_pointer_clear (hp, 1);
- mono_hazard_pointer_clear (hp, 2);
-}
-
-static MonoProfilerThread *
-init_thread (MonoProfiler *prof, gboolean add_to_lls)
-{
- MonoProfilerThread *thread = PROF_TLS_GET ();
-
- /*
- * Sometimes we may try to initialize a thread twice. One example is the
- * main thread: We initialize it when setting up the profiler, but we will
- * also get a thread_start () callback for it. Another example is when
- * attaching new threads to the runtime: We may get a gc_alloc () callback
- * for that thread's thread object (where we initialize it), soon followed
- * by a thread_start () callback.
- *
- * These cases are harmless anyhow. Just return if we've already done the
- * initialization work.
- */
- if (thread)
- return thread;
-
- thread = g_malloc (sizeof (MonoProfilerThread));
- thread->node.key = thread_id ();
- thread->profiler = prof;
- thread->attached = add_to_lls;
- thread->call_depth = 0;
- thread->busy = 0;
- thread->ended = FALSE;
-
- init_buffer_state (thread);
-
- /*
- * Some internal profiler threads don't need to be cleaned up
- * by the main thread on shutdown.
- */
- if (add_to_lls) {
- MonoThreadHazardPointers *hp = mono_hazard_pointer_get ();
- g_assert (mono_lls_insert (&profiler_thread_list, hp, &thread->node) && "Why can't we insert the thread in the LLS?");
- clear_hazard_pointers (hp);
- }
-
- PROF_TLS_SET (thread);
-
- return thread;
-}
-
-// Only valid if init_thread () was called with add_to_lls = FALSE.
-static void
-deinit_thread (MonoProfilerThread *thread)
-{
- g_assert (!thread->attached && "Why are we manually freeing an attached thread?");
-
- g_free (thread);
- PROF_TLS_SET (NULL);
-}
-
-// Only valid if init_thread () was called with add_to_lls = FALSE.
-static LogBuffer *
-ensure_logbuf_unsafe (MonoProfilerThread *thread, int bytes)
-{
- LogBuffer *old = thread->buffer;
-
- if (old && old->cursor + bytes + 100 < old->buf_end)
- return old;
-
- LogBuffer *new_ = create_buffer (thread->node.key);
- new_->next = old;
- thread->buffer = new_;
-
- return new_;
-}
-
-static void
-encode_uleb128 (uint64_t value, uint8_t *buf, uint8_t **endbuf)
-{
- uint8_t *p = buf;
-
- do {
- uint8_t b = value & 0x7f;
- value >>= 7;
-
- if (value != 0) /* more bytes to come */
- b |= 0x80;
-
- *p ++ = b;
- } while (value);
-
- *endbuf = p;
-}
-
-static void
-encode_sleb128 (intptr_t value, uint8_t *buf, uint8_t **endbuf)
-{
- int more = 1;
- int negative = (value < 0);
- unsigned int size = sizeof (intptr_t) * 8;
- uint8_t byte;
- uint8_t *p = buf;
-
- while (more) {
- byte = value & 0x7f;
- value >>= 7;
-
- /* the following is unnecessary if the
- * implementation of >>= uses an arithmetic rather
- * than logical shift for a signed left operand
- */
- if (negative)
- /* sign extend */
- value |= - ((intptr_t) 1 <<(size - 7));
-
- /* sign bit of byte is second high order bit (0x40) */
- if ((value == 0 && !(byte & 0x40)) ||
- (value == -1 && (byte & 0x40)))
- more = 0;
- else
- byte |= 0x80;
-
- *p ++= byte;
- }
-
- *endbuf = p;
-}
-
-static void
-emit_byte (LogBuffer *logbuffer, int value)
-{
- logbuffer->cursor [0] = value;
- logbuffer->cursor++;
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-emit_value (LogBuffer *logbuffer, int value)
-{
- encode_uleb128 (value, logbuffer->cursor, &logbuffer->cursor);
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-emit_time (LogBuffer *logbuffer, uint64_t value)
-{
- uint64_t tdiff = value - logbuffer->last_time;
- encode_uleb128 (tdiff, logbuffer->cursor, &logbuffer->cursor);
- logbuffer->last_time = value;
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-emit_event_time (LogBuffer *logbuffer, int event, uint64_t time)
-{
- emit_byte (logbuffer, event);
- emit_time (logbuffer, time);
-}
-
-static void
-emit_event (LogBuffer *logbuffer, int event)
-{
- emit_event_time (logbuffer, event, current_time ());
-}
-
-static void
-emit_svalue (LogBuffer *logbuffer, int64_t value)
-{
- encode_sleb128 (value, logbuffer->cursor, &logbuffer->cursor);
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-emit_uvalue (LogBuffer *logbuffer, uint64_t value)
-{
- encode_uleb128 (value, logbuffer->cursor, &logbuffer->cursor);
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-emit_ptr (LogBuffer *logbuffer, void *ptr)
-{
- if (!logbuffer->ptr_base)
- logbuffer->ptr_base = (uintptr_t) ptr;
-
- emit_svalue (logbuffer, (intptr_t) ptr - logbuffer->ptr_base);
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-emit_method_inner (LogBuffer *logbuffer, void *method)
-{
- if (!logbuffer->method_base) {
- logbuffer->method_base = (intptr_t) method;
- logbuffer->last_method = (intptr_t) method;
- }
-
- encode_sleb128 ((intptr_t) ((char *) method - (char *) logbuffer->last_method), logbuffer->cursor, &logbuffer->cursor);
- logbuffer->last_method = (intptr_t) method;
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-register_method_local (MonoMethod *method, MonoJitInfo *ji)
-{
- MonoProfilerThread *thread = PROF_TLS_GET ();
-
- if (!mono_conc_hashtable_lookup (thread->profiler->method_table, method)) {
- MethodInfo *info = (MethodInfo *) g_malloc (sizeof (MethodInfo));
-
- info->method = method;
- info->ji = ji;
- info->time = current_time ();
-
- GPtrArray *arr = thread->methods ? thread->methods : (thread->methods = g_ptr_array_new ());
- g_ptr_array_add (arr, info);
- }
-}
-
-static void
-emit_method (LogBuffer *logbuffer, MonoMethod *method)
-{
- register_method_local (method, NULL);
- emit_method_inner (logbuffer, method);
-}
-
-static void
-emit_obj (LogBuffer *logbuffer, void *ptr)
-{
- if (!logbuffer->obj_base)
- logbuffer->obj_base = (uintptr_t) ptr >> 3;
-
- emit_svalue (logbuffer, ((uintptr_t) ptr >> 3) - logbuffer->obj_base);
-
- g_assert (logbuffer->cursor <= logbuffer->buf_end && "Why are we writing past the buffer end?");
-}
-
-static void
-emit_string (LogBuffer *logbuffer, const char *str, size_t size)
-{
- size_t i = 0;
- if (str) {
- for (; i < size; i++) {
- if (str[i] == '\0')
- break;
- emit_byte (logbuffer, str [i]);
- }
- }
- emit_byte (logbuffer, '\0');
-}
-
-static void
-emit_double (LogBuffer *logbuffer, double value)
-{
- int i;
- unsigned char buffer[8];
- memcpy (buffer, &value, 8);
-#if G_BYTE_ORDER == G_BIG_ENDIAN
- for (i = 7; i >= 0; i--)
-#else
- for (i = 0; i < 8; i++)
-#endif
- emit_byte (logbuffer, buffer[i]);
-}
-
-static char*
-write_int16 (char *buf, int32_t value)
-{
- int i;
- for (i = 0; i < 2; ++i) {
- buf [i] = value;
- value >>= 8;
- }
- return buf + 2;
-}
-
-static char*
-write_int32 (char *buf, int32_t value)
-{
- int i;
- for (i = 0; i < 4; ++i) {
- buf [i] = value;
- value >>= 8;
- }
- return buf + 4;
-}
-
-static char*
-write_int64 (char *buf, int64_t value)
-{
- int i;
- for (i = 0; i < 8; ++i) {
- buf [i] = value;
- value >>= 8;
- }
- return buf + 8;
-}
-
-static char *
-write_header_string (char *p, const char *str)
-{
- size_t len = strlen (str) + 1;
-
- p = write_int32 (p, len);
- strcpy (p, str);
-
- return p + len;
-}
-
-static void
-dump_header (MonoProfiler *profiler)
-{
- const char *args = profiler->args;
- const char *arch = mono_config_get_cpu ();
- const char *os = mono_config_get_os ();
-
- char *hbuf = g_malloc (
- sizeof (gint32) /* header id */ +
- sizeof (gint8) /* major version */ +
- sizeof (gint8) /* minor version */ +
- sizeof (gint8) /* data version */ +
- sizeof (gint8) /* word size */ +
- sizeof (gint64) /* startup time */ +
- sizeof (gint32) /* timer overhead */ +
- sizeof (gint32) /* flags */ +
- sizeof (gint32) /* process id */ +
- sizeof (gint16) /* command port */ +
- sizeof (gint32) + strlen (args) + 1 /* arguments */ +
- sizeof (gint32) + strlen (arch) + 1 /* architecture */ +
- sizeof (gint32) + strlen (os) + 1 /* operating system */
- );
- char *p = hbuf;
-
- p = write_int32 (p, LOG_HEADER_ID);
- *p++ = LOG_VERSION_MAJOR;
- *p++ = LOG_VERSION_MINOR;
- *p++ = LOG_DATA_VERSION;
- *p++ = sizeof (void *);
- p = write_int64 (p, ((uint64_t) time (NULL)) * 1000);
- p = write_int32 (p, timer_overhead);
- p = write_int32 (p, 0); /* flags */
- p = write_int32 (p, process_id ());
- p = write_int16 (p, profiler->command_port);
- p = write_header_string (p, args);
- p = write_header_string (p, arch);
- p = write_header_string (p, os);
-
-#if defined (HAVE_SYS_ZLIB)
- if (profiler->gzfile) {
- gzwrite (profiler->gzfile, hbuf, p - hbuf);
- } else
-#endif
- {
- fwrite (hbuf, p - hbuf, 1, profiler->file);
- fflush (profiler->file);
- }
-
- g_free (hbuf);
-}
-
-/*
- * Must be called with the reader lock held if thread is the current thread, or
- * the exclusive lock if thread is a different thread. However, if thread is
- * the current thread, and init_thread () was called with add_to_lls = FALSE,
- * then no locking is necessary.
- */
-static void
-send_buffer (MonoProfilerThread *thread)
-{
- WriterQueueEntry *entry = mono_lock_free_alloc (&thread->profiler->writer_entry_allocator);
- entry->methods = thread->methods;
- entry->buffer = thread->buffer;
-
- mono_lock_free_queue_node_init (&entry->node, FALSE);
-
- mono_lock_free_queue_enqueue (&thread->profiler->writer_queue, &entry->node);
- mono_os_sem_post (&thread->profiler->writer_queue_sem);
-}
-
-static void
-free_thread (gpointer p)
-{
- MonoProfilerThread *thread = p;
-
- if (!thread->ended) {
- /*
- * The thread is being cleaned up by the main thread during
- * shutdown. This typically happens for internal runtime
- * threads. We need to synthesize a thread end event.
- */
-
- InterlockedIncrement (&thread_ends_ctr);
-
- LogBuffer *buf = ensure_logbuf_unsafe (thread,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* tid */
- );
-
- emit_event (buf, TYPE_END_UNLOAD | TYPE_METADATA);
- emit_byte (buf, TYPE_THREAD);
- emit_ptr (buf, (void *) thread->node.key);
- }
-
- send_buffer (thread);
-
- g_free (thread);
-}
-
-static void
-remove_thread (MonoProfilerThread *thread)
-{
- MonoThreadHazardPointers *hp = mono_hazard_pointer_get ();
-
- if (mono_lls_remove (&profiler_thread_list, hp, &thread->node))
- mono_thread_hazardous_try_free (thread, free_thread);
-
- clear_hazard_pointers (hp);
-}
-
-static void
-dump_buffer (MonoProfiler *profiler, LogBuffer *buf)
-{
- char hbuf [128];
- char *p = hbuf;
-
- if (buf->next)
- dump_buffer (profiler, buf->next);
-
- if (buf->cursor - buf->buf) {
- p = write_int32 (p, BUF_ID);
- p = write_int32 (p, buf->cursor - buf->buf);
- p = write_int64 (p, buf->time_base);
- p = write_int64 (p, buf->ptr_base);
- p = write_int64 (p, buf->obj_base);
- p = write_int64 (p, buf->thread_id);
- p = write_int64 (p, buf->method_base);
-
-#if defined (HAVE_SYS_ZLIB)
- if (profiler->gzfile) {
- gzwrite (profiler->gzfile, hbuf, p - hbuf);
- gzwrite (profiler->gzfile, buf->buf, buf->cursor - buf->buf);
- } else
-#endif
- {
- fwrite (hbuf, p - hbuf, 1, profiler->file);
- fwrite (buf->buf, buf->cursor - buf->buf, 1, profiler->file);
- fflush (profiler->file);
- }
- }
-
- free_buffer (buf, buf->size);
-}
-
-static void
-dump_buffer_threadless (MonoProfiler *profiler, LogBuffer *buf)
-{
- for (LogBuffer *iter = buf; iter; iter = iter->next)
- iter->thread_id = 0;
-
- dump_buffer (profiler, buf);
-}
-
-static void
-process_requests (void)
-{
- if (heapshot_requested)
- mono_gc_collect (mono_gc_max_generation ());
-}
-
-// Only valid if init_thread () was called with add_to_lls = FALSE.
-static void
-send_log_unsafe (gboolean if_needed)
-{
- MonoProfilerThread *thread = PROF_TLS_GET ();
-
- if (!if_needed || (if_needed && thread->buffer->next)) {
- if (!thread->attached)
- for (LogBuffer *iter = thread->buffer; iter; iter = iter->next)
- iter->thread_id = 0;
-
- send_buffer (thread);
- init_buffer_state (thread);
- }
-}
-
-// Assumes that the exclusive lock is held.
-static void
-sync_point_flush (void)
-{
- g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id () && "Why don't we hold the exclusive lock?");
-
- MONO_LLS_FOREACH_SAFE (&profiler_thread_list, MonoProfilerThread, thread) {
- g_assert (thread->attached && "Why is a thread in the LLS not attached?");
-
- send_buffer (thread);
- init_buffer_state (thread);
- } MONO_LLS_FOREACH_SAFE_END
-}
-
-// Assumes that the exclusive lock is held.
-static void
-sync_point_mark (MonoProfilerSyncPointType type)
-{
- g_assert (InterlockedReadPointer (&buffer_rwlock_exclusive) == (gpointer) thread_id () && "Why don't we hold the exclusive lock?");
-
- ENTER_LOG (&sync_points_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* type */
- );
-
- emit_event (logbuffer, TYPE_META | TYPE_SYNC_POINT);
- emit_byte (logbuffer, type);
-
- EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
-
- send_log_unsafe (FALSE);
-}
-
-// Assumes that the exclusive lock is held.
-static void
-sync_point (MonoProfilerSyncPointType type)
-{
- sync_point_flush ();
- sync_point_mark (type);
-}
-
-static int
-gc_reference (MonoObject *obj, MonoClass *klass, uintptr_t size, uintptr_t num, MonoObject **refs, uintptr_t *offsets, void *data)
-{
- /* account for object alignment in the heap */
- size += 7;
- size &= ~7;
-
- ENTER_LOG (&heap_objects_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* obj */ +
- LEB128_SIZE /* klass */ +
- LEB128_SIZE /* size */ +
- LEB128_SIZE /* num */ +
- num * (
- LEB128_SIZE /* offset */ +
- LEB128_SIZE /* ref */
- )
- );
-
- emit_event (logbuffer, TYPE_HEAP_OBJECT | TYPE_HEAP);
- emit_obj (logbuffer, obj);
- emit_ptr (logbuffer, klass);
- emit_value (logbuffer, size);
- emit_value (logbuffer, num);
-
- uintptr_t last_offset = 0;
-
- for (int i = 0; i < num; ++i) {
- emit_value (logbuffer, offsets [i] - last_offset);
- last_offset = offsets [i];
- emit_obj (logbuffer, refs [i]);
- }
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
- return 0;
-}
-
-static unsigned int hs_mode_ms = 0;
-static unsigned int hs_mode_gc = 0;
-static unsigned int hs_mode_ondemand = 0;
-static unsigned int gc_count = 0;
-static uint64_t last_hs_time = 0;
-static gboolean do_heap_walk = FALSE;
-
-static void
-heap_walk (MonoProfiler *profiler)
-{
- ENTER_LOG (&heap_starts_ctr, logbuffer,
- EVENT_SIZE /* event */
- );
-
- emit_event (logbuffer, TYPE_HEAP_START | TYPE_HEAP);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
- mono_gc_walk_heap (0, gc_reference, NULL);
-
- ENTER_LOG (&heap_ends_ctr, logbuffer,
- EVENT_SIZE /* event */
- );
-
- emit_event (logbuffer, TYPE_HEAP_END | TYPE_HEAP);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-
-static void
-gc_roots (MonoProfiler *prof, int num, void **objects, int *root_types, uintptr_t *extra_info)
-{
- ENTER_LOG (&heap_roots_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* num */ +
- LEB128_SIZE /* collections */ +
- num * (
- LEB128_SIZE /* object */ +
- LEB128_SIZE /* root type */ +
- LEB128_SIZE /* extra info */
- )
- );
-
- emit_event (logbuffer, TYPE_HEAP_ROOT | TYPE_HEAP);
- emit_value (logbuffer, num);
- emit_value (logbuffer, mono_gc_collection_count (mono_gc_max_generation ()));
-
- for (int i = 0; i < num; ++i) {
- emit_obj (logbuffer, objects [i]);
- emit_byte (logbuffer, root_types [i]);
- emit_value (logbuffer, extra_info [i]);
- }
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-
-static void
-gc_event (MonoProfiler *profiler, MonoGCEvent ev, int generation)
-{
- ENTER_LOG (&gc_events_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* gc event */ +
- BYTE_SIZE /* generation */
- );
-
- emit_event (logbuffer, TYPE_GC_EVENT | TYPE_GC);
- emit_byte (logbuffer, ev);
- emit_byte (logbuffer, generation);
-
- EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
-
- switch (ev) {
- case MONO_GC_EVENT_START:
- if (generation == mono_gc_max_generation ())
- gc_count++;
-
- uint64_t now = current_time ();
-
- if (hs_mode_ms && (now - last_hs_time) / 1000 * 1000 >= hs_mode_ms)
- do_heap_walk = TRUE;
- else if (hs_mode_gc && !(gc_count % hs_mode_gc))
- do_heap_walk = TRUE;
- else if (hs_mode_ondemand)
- do_heap_walk = heapshot_requested;
- else if (!hs_mode_ms && !hs_mode_gc && generation == mono_gc_max_generation ())
- do_heap_walk = TRUE;
- break;
- case MONO_GC_EVENT_PRE_STOP_WORLD_LOCKED:
- /*
- * Ensure that no thread can be in the middle of writing to
- * a buffer when the world stops...
- */
- buffer_lock_excl ();
- break;
- case MONO_GC_EVENT_POST_STOP_WORLD:
- /*
- * ... So that we now have a consistent view of all buffers.
- * This allows us to flush them. We need to do this because
- * they may contain object allocation events that need to be
- * committed to the log file before any object move events
- * that will be produced during this GC.
- */
- sync_point (SYNC_POINT_WORLD_STOP);
- break;
- case MONO_GC_EVENT_PRE_START_WORLD:
- if (do_heap_shot && do_heap_walk) {
- heap_walk (profiler);
-
- do_heap_walk = FALSE;
- heapshot_requested = 0;
- last_hs_time = current_time ();
- }
- break;
- case MONO_GC_EVENT_POST_START_WORLD_UNLOCKED:
- /*
- * Similarly, we must now make sure that any object moves
- * written to the GC thread's buffer are flushed. Otherwise,
- * object allocation events for certain addresses could come
- * after the move events that made those addresses available.
- */
- sync_point_mark (SYNC_POINT_WORLD_START);
-
- /*
- * Finally, it is safe to allow other threads to write to
- * their buffers again.
- */
- buffer_unlock_excl ();
- break;
- default:
- break;
- }
-}
-
-static void
-gc_resize (MonoProfiler *profiler, int64_t new_size)
-{
- ENTER_LOG (&gc_resizes_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* new size */
- );
-
- emit_event (logbuffer, TYPE_GC_RESIZE | TYPE_GC);
- emit_value (logbuffer, new_size);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-
-typedef struct {
- int count;
- MonoMethod* methods [MAX_FRAMES];
- int32_t il_offsets [MAX_FRAMES];
- int32_t native_offsets [MAX_FRAMES];
-} FrameData;
-
-static int num_frames = MAX_FRAMES;
-
-static mono_bool
-walk_stack (MonoMethod *method, int32_t native_offset, int32_t il_offset, mono_bool managed, void* data)
-{
- FrameData *frame = (FrameData *)data;
- if (method && frame->count < num_frames) {
- frame->il_offsets [frame->count] = il_offset;
- frame->native_offsets [frame->count] = native_offset;
- frame->methods [frame->count++] = method;
- //printf ("In %d %s at %d (native: %d)\n", frame->count, mono_method_get_name (method), il_offset, native_offset);
- }
- return frame->count == num_frames;
-}
-
-/*
- * a note about stack walks: they can cause more profiler events to fire,
- * so we need to make sure they don't happen after we started emitting an
- * event, hence the collect_bt/emit_bt split.
- */
-static void
-collect_bt (FrameData *data)
-{
- data->count = 0;
- mono_stack_walk_no_il (walk_stack, data);
-}
-
-static void
-emit_bt (MonoProfiler *prof, LogBuffer *logbuffer, FrameData *data)
-{
- /* FIXME: this is actually tons of data and we should
- * just output it the first time and use an id the next
- */
- if (data->count > num_frames)
- printf ("bad num frames: %d\n", data->count);
- emit_value (logbuffer, data->count);
- //if (*p != data.count) {
- // printf ("bad num frames enc at %d: %d -> %d\n", count, data.count, *p); printf ("frames end: %p->%p\n", p, logbuffer->cursor); exit(0);}
- while (data->count) {
- emit_method (logbuffer, data->methods [--data->count]);
- }
-}
-
-static void
-gc_alloc (MonoProfiler *prof, MonoObject *obj, MonoClass *klass)
-{
- init_thread (prof, TRUE);
-
- int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces) ? TYPE_ALLOC_BT : 0;
- FrameData data;
- uintptr_t len = mono_object_get_size (obj);
- /* account for object alignment in the heap */
- len += 7;
- len &= ~7;
-
- if (do_bt)
- collect_bt (&data);
-
- ENTER_LOG (&gc_allocs_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* klass */ +
- LEB128_SIZE /* obj */ +
- LEB128_SIZE /* size */ +
- (do_bt ? (
- LEB128_SIZE /* count */ +
- data.count * (
- LEB128_SIZE /* method */
- )
- ) : 0)
- );
-
- emit_event (logbuffer, do_bt | TYPE_ALLOC);
- emit_ptr (logbuffer, klass);
- emit_obj (logbuffer, obj);
- emit_value (logbuffer, len);
-
- if (do_bt)
- emit_bt (prof, logbuffer, &data);
-
- EXIT_LOG;
-}
-
-static void
-gc_moves (MonoProfiler *prof, void **objects, int num)
-{
- ENTER_LOG (&gc_moves_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* num */ +
- num * (
- LEB128_SIZE /* object */
- )
- );
-
- emit_event (logbuffer, TYPE_GC_MOVE | TYPE_GC);
- emit_value (logbuffer, num);
-
- for (int i = 0; i < num; ++i)
- emit_obj (logbuffer, objects [i]);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-
-static void
-gc_handle (MonoProfiler *prof, int op, int type, uintptr_t handle, MonoObject *obj)
-{
- int do_bt = nocalls && InterlockedRead (&runtime_inited) && !notraces;
- FrameData data;
-
- if (do_bt)
- collect_bt (&data);
-
- gint32 *ctr = op == MONO_PROFILER_GC_HANDLE_CREATED ? &gc_handle_creations_ctr : &gc_handle_deletions_ctr;
-
- ENTER_LOG (ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* type */ +
- LEB128_SIZE /* handle */ +
- (op == MONO_PROFILER_GC_HANDLE_CREATED ? (
- LEB128_SIZE /* obj */
- ) : 0) +
- (do_bt ? (
- LEB128_SIZE /* count */ +
- data.count * (
- LEB128_SIZE /* method */
- )
- ) : 0)
- );
-
- if (op == MONO_PROFILER_GC_HANDLE_CREATED)
- emit_event (logbuffer, (do_bt ? TYPE_GC_HANDLE_CREATED_BT : TYPE_GC_HANDLE_CREATED) | TYPE_GC);
- else if (op == MONO_PROFILER_GC_HANDLE_DESTROYED)
- emit_event (logbuffer, (do_bt ? TYPE_GC_HANDLE_DESTROYED_BT : TYPE_GC_HANDLE_DESTROYED) | TYPE_GC);
- else
- g_assert_not_reached ();
-
- emit_value (logbuffer, type);
- emit_value (logbuffer, handle);
-
- if (op == MONO_PROFILER_GC_HANDLE_CREATED)
- emit_obj (logbuffer, obj);
-
- if (do_bt)
- emit_bt (prof, logbuffer, &data);
-
- EXIT_LOG;
-}
-
-static void
-finalize_begin (MonoProfiler *prof)
-{
- ENTER_LOG (&finalize_begins_ctr, buf,
- EVENT_SIZE /* event */
- );
-
- emit_event (buf, TYPE_GC_FINALIZE_START | TYPE_GC);
-
- EXIT_LOG;
-}
-
-static void
-finalize_end (MonoProfiler *prof)
-{
- ENTER_LOG (&finalize_ends_ctr, buf,
- EVENT_SIZE /* event */
- );
-
- emit_event (buf, TYPE_GC_FINALIZE_END | TYPE_GC);
-
- EXIT_LOG;
-}
-
-static void
-finalize_object_begin (MonoProfiler *prof, MonoObject *obj)
-{
- ENTER_LOG (&finalize_object_begins_ctr, buf,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* obj */
- );
-
- emit_event (buf, TYPE_GC_FINALIZE_OBJECT_START | TYPE_GC);
- emit_obj (buf, obj);
-
- EXIT_LOG;
-}
-
-static void
-finalize_object_end (MonoProfiler *prof, MonoObject *obj)
-{
- ENTER_LOG (&finalize_object_ends_ctr, buf,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* obj */
- );
-
- emit_event (buf, TYPE_GC_FINALIZE_OBJECT_END | TYPE_GC);
- emit_obj (buf, obj);
-
- EXIT_LOG;
-}
-
-static char*
-push_nesting (char *p, MonoClass *klass)
-{
- MonoClass *nesting;
- const char *name;
- const char *nspace;
- nesting = mono_class_get_nesting_type (klass);
- if (nesting) {
- p = push_nesting (p, nesting);
- *p++ = '/';
- *p = 0;
- }
- name = mono_class_get_name (klass);
- nspace = mono_class_get_namespace (klass);
- if (*nspace) {
- strcpy (p, nspace);
- p += strlen (nspace);
- *p++ = '.';
- *p = 0;
- }
- strcpy (p, name);
- p += strlen (name);
- return p;
-}
-
-static char*
-type_name (MonoClass *klass)
-{
- char buf [1024];
- char *p;
- push_nesting (buf, klass);
- p = (char *) g_malloc (strlen (buf) + 1);
- strcpy (p, buf);
- return p;
-}
-
-static void
-image_loaded (MonoProfiler *prof, MonoImage *image, int result)
-{
- if (result != MONO_PROFILE_OK)
- return;
-
- const char *name = mono_image_get_filename (image);
- int nlen = strlen (name) + 1;
-
- ENTER_LOG (&image_loads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* image */ +
- nlen /* name */
- );
-
- emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_IMAGE);
- emit_ptr (logbuffer, image);
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG;
-}
-
-static void
-image_unloaded (MonoProfiler *prof, MonoImage *image)
-{
- const char *name = mono_image_get_filename (image);
- int nlen = strlen (name) + 1;
-
- ENTER_LOG (&image_unloads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* image */ +
- nlen /* name */
- );
-
- emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_IMAGE);
- emit_ptr (logbuffer, image);
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG;
-}
-
-static void
-assembly_loaded (MonoProfiler *prof, MonoAssembly *assembly, int result)
-{
- if (result != MONO_PROFILE_OK)
- return;
-
- char *name = mono_stringify_assembly_name (mono_assembly_get_name (assembly));
- int nlen = strlen (name) + 1;
-
- ENTER_LOG (&assembly_loads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* assembly */ +
- nlen /* name */
- );
-
- emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_ASSEMBLY);
- emit_ptr (logbuffer, assembly);
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG;
-
- mono_free (name);
-}
-
-static void
-assembly_unloaded (MonoProfiler *prof, MonoAssembly *assembly)
-{
- char *name = mono_stringify_assembly_name (mono_assembly_get_name (assembly));
- int nlen = strlen (name) + 1;
-
- ENTER_LOG (&assembly_unloads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* assembly */ +
- nlen /* name */
- );
-
- emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_ASSEMBLY);
- emit_ptr (logbuffer, assembly);
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG;
-
- mono_free (name);
-}
-
-static void
-class_loaded (MonoProfiler *prof, MonoClass *klass, int result)
-{
- if (result != MONO_PROFILE_OK)
- return;
-
- char *name;
-
- if (InterlockedRead (&runtime_inited))
- name = mono_type_get_name (mono_class_get_type (klass));
- else
- name = type_name (klass);
-
- int nlen = strlen (name) + 1;
- MonoImage *image = mono_class_get_image (klass);
-
- ENTER_LOG (&class_loads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* klass */ +
- LEB128_SIZE /* image */ +
- nlen /* name */
- );
-
- emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_CLASS);
- emit_ptr (logbuffer, klass);
- emit_ptr (logbuffer, image);
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG;
-
- if (runtime_inited)
- mono_free (name);
- else
- g_free (name);
-}
-
-static void
-class_unloaded (MonoProfiler *prof, MonoClass *klass)
-{
- char *name;
-
- if (InterlockedRead (&runtime_inited))
- name = mono_type_get_name (mono_class_get_type (klass));
- else
- name = type_name (klass);
-
- int nlen = strlen (name) + 1;
- MonoImage *image = mono_class_get_image (klass);
-
- ENTER_LOG (&class_unloads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* klass */ +
- LEB128_SIZE /* image */ +
- nlen /* name */
- );
-
- emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_CLASS);
- emit_ptr (logbuffer, klass);
- emit_ptr (logbuffer, image);
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG;
-
- if (runtime_inited)
- mono_free (name);
- else
- g_free (name);
-}
-
-static void process_method_enter_coverage (MonoProfiler *prof, MonoMethod *method);
-
-static void
-method_enter (MonoProfiler *prof, MonoMethod *method)
-{
- process_method_enter_coverage (prof, method);
-
- if (!only_coverage && PROF_TLS_GET ()->call_depth++ <= max_call_depth) {
- ENTER_LOG (&method_entries_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* method */
- );
-
- emit_event (logbuffer, TYPE_ENTER | TYPE_METHOD);
- emit_method (logbuffer, method);
-
- EXIT_LOG;
- }
-}
-
-static void
-method_leave (MonoProfiler *prof, MonoMethod *method)
-{
- if (!only_coverage && --PROF_TLS_GET ()->call_depth <= max_call_depth) {
- ENTER_LOG (&method_exits_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* method */
- );
-
- emit_event (logbuffer, TYPE_LEAVE | TYPE_METHOD);
- emit_method (logbuffer, method);
-
- EXIT_LOG;
- }
-}
-
-static void
-method_exc_leave (MonoProfiler *prof, MonoMethod *method)
-{
- if (!only_coverage && !nocalls && --PROF_TLS_GET ()->call_depth <= max_call_depth) {
- ENTER_LOG (&method_exception_exits_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* method */
- );
-
- emit_event (logbuffer, TYPE_EXC_LEAVE | TYPE_METHOD);
- emit_method (logbuffer, method);
-
- EXIT_LOG;
- }
-}
-
-static void
-method_jitted (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *ji, int result)
-{
- if (result != MONO_PROFILE_OK)
- return;
-
- register_method_local (method, ji);
-
- process_requests ();
-}
-
-static void
-code_buffer_new (MonoProfiler *prof, void *buffer, int size, MonoProfilerCodeBufferType type, void *data)
-{
- char *name;
- int nlen;
-
- if (type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE) {
- name = (char *) data;
- nlen = strlen (name) + 1;
- } else {
- name = NULL;
- nlen = 0;
- }
-
- ENTER_LOG (&code_buffers_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* buffer */ +
- LEB128_SIZE /* size */ +
- (name ? (
- nlen /* name */
- ) : 0)
- );
-
- emit_event (logbuffer, TYPE_JITHELPER | TYPE_RUNTIME);
- emit_byte (logbuffer, type);
- emit_ptr (logbuffer, buffer);
- emit_value (logbuffer, size);
-
- if (name) {
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
- }
-
- EXIT_LOG;
-}
-
-static void
-throw_exc (MonoProfiler *prof, MonoObject *object)
-{
- int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces) ? TYPE_THROW_BT : 0;
- FrameData data;
-
- if (do_bt)
- collect_bt (&data);
-
- ENTER_LOG (&exception_throws_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* object */ +
- (do_bt ? (
- LEB128_SIZE /* count */ +
- data.count * (
- LEB128_SIZE /* method */
- )
- ) : 0)
- );
-
- emit_event (logbuffer, do_bt | TYPE_EXCEPTION);
- emit_obj (logbuffer, object);
-
- if (do_bt)
- emit_bt (prof, logbuffer, &data);
-
- EXIT_LOG;
-}
-
-static void
-clause_exc (MonoProfiler *prof, MonoMethod *method, int clause_type, int clause_num)
-{
- ENTER_LOG (&exception_clauses_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* clause type */ +
- LEB128_SIZE /* clause num */ +
- LEB128_SIZE /* method */
- );
-
- emit_event (logbuffer, TYPE_EXCEPTION | TYPE_CLAUSE);
- emit_byte (logbuffer, clause_type);
- emit_value (logbuffer, clause_num);
- emit_method (logbuffer, method);
-
- EXIT_LOG;
-}
-
-static void
-monitor_event (MonoProfiler *profiler, MonoObject *object, MonoProfilerMonitorEvent event)
-{
- int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces && event == MONO_PROFILER_MONITOR_CONTENTION) ? TYPE_MONITOR_BT : 0;
- FrameData data;
-
- if (do_bt)
- collect_bt (&data);
-
- gint32 *ctr;
-
- switch (event) {
- case MONO_PROFILER_MONITOR_CONTENTION:
- ctr = &monitor_contentions_ctr;
- break;
- case MONO_PROFILER_MONITOR_DONE:
- ctr = &monitor_acquisitions_ctr;
- break;
- case MONO_PROFILER_MONITOR_FAIL:
- ctr = &monitor_failures_ctr;
- break;
- default:
- g_assert_not_reached ();
- break;
- }
-
- ENTER_LOG (ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* object */ +
- (do_bt ? (
- LEB128_SIZE /* count */ +
- data.count * (
- LEB128_SIZE /* method */
- )
- ) : 0)
- );
-
- emit_event (logbuffer, (event << 4) | do_bt | TYPE_MONITOR);
- emit_obj (logbuffer, object);
-
- if (do_bt)
- emit_bt (profiler, logbuffer, &data);
-
- EXIT_LOG;
-}
-
-static void
-thread_start (MonoProfiler *prof, uintptr_t tid)
-{
- init_thread (prof, TRUE);
-
- ENTER_LOG (&thread_starts_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* tid */
- );
-
- emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_THREAD);
- emit_ptr (logbuffer, (void*) tid);
-
- EXIT_LOG;
-}
-
-static void
-thread_end (MonoProfiler *prof, uintptr_t tid)
-{
- ENTER_LOG (&thread_ends_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* tid */
- );
-
- emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_THREAD);
- emit_ptr (logbuffer, (void*) tid);
-
- EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
-
- MonoProfilerThread *thread = PROF_TLS_GET ();
-
- thread->ended = TRUE;
- remove_thread (thread);
-
- PROF_TLS_SET (NULL);
-}
-
-static void
-thread_name (MonoProfiler *prof, uintptr_t tid, const char *name)
-{
- int len = strlen (name) + 1;
-
- ENTER_LOG (&thread_names_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* tid */ +
- len /* name */
- );
-
- emit_event (logbuffer, TYPE_METADATA);
- emit_byte (logbuffer, TYPE_THREAD);
- emit_ptr (logbuffer, (void*)tid);
- memcpy (logbuffer->cursor, name, len);
- logbuffer->cursor += len;
-
- EXIT_LOG;
-}
-
-static void
-domain_loaded (MonoProfiler *prof, MonoDomain *domain, int result)
-{
- if (result != MONO_PROFILE_OK)
- return;
-
- ENTER_LOG (&domain_loads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* domain id */
- );
-
- emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_DOMAIN);
- emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
-
- EXIT_LOG;
-}
-
-static void
-domain_unloaded (MonoProfiler *prof, MonoDomain *domain)
-{
- ENTER_LOG (&domain_unloads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* domain id */
- );
-
- emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_DOMAIN);
- emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
-
- EXIT_LOG;
-}
-
-static void
-domain_name (MonoProfiler *prof, MonoDomain *domain, const char *name)
-{
- int nlen = strlen (name) + 1;
-
- ENTER_LOG (&domain_names_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* domain id */ +
- nlen /* name */
- );
-
- emit_event (logbuffer, TYPE_METADATA);
- emit_byte (logbuffer, TYPE_DOMAIN);
- emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG;
-}
-
-static void
-context_loaded (MonoProfiler *prof, MonoAppContext *context)
-{
- ENTER_LOG (&context_loads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* context id */ +
- LEB128_SIZE /* domain id */
- );
-
- emit_event (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_CONTEXT);
- emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_id (context));
- emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_domain_id (context));
-
- EXIT_LOG;
-}
-
-static void
-context_unloaded (MonoProfiler *prof, MonoAppContext *context)
-{
- ENTER_LOG (&context_unloads_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* context id */ +
- LEB128_SIZE /* domain id */
- );
-
- emit_event (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
- emit_byte (logbuffer, TYPE_CONTEXT);
- emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_id (context));
- emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_domain_id (context));
-
- EXIT_LOG;
-}
-
-typedef struct {
- MonoMethod *method;
- MonoDomain *domain;
- void *base_address;
- int offset;
-} AsyncFrameInfo;
-
-typedef struct {
- MonoLockFreeQueueNode node;
- MonoProfiler *prof;
- uint64_t time;
- uintptr_t tid;
- void *ip;
- int count;
- AsyncFrameInfo frames [MONO_ZERO_LEN_ARRAY];
-} SampleHit;
-
-static mono_bool
-async_walk_stack (MonoMethod *method, MonoDomain *domain, void *base_address, int offset, void *data)
-{
- SampleHit *sample = (SampleHit *) data;
-
- if (sample->count < num_frames) {
- int i = sample->count;
-
- sample->frames [i].method = method;
- sample->frames [i].domain = domain;
- sample->frames [i].base_address = base_address;
- sample->frames [i].offset = offset;
-
- sample->count++;
- }
-
- return sample->count == num_frames;
-}
-
-#define SAMPLE_SLOT_SIZE(FRAMES) (sizeof (SampleHit) + sizeof (AsyncFrameInfo) * (FRAMES - MONO_ZERO_LEN_ARRAY))
-#define SAMPLE_BLOCK_SIZE (mono_pagesize ())
-
-static void
-enqueue_sample_hit (gpointer p)
-{
- SampleHit *sample = p;
-
- mono_lock_free_queue_node_unpoison (&sample->node);
- mono_lock_free_queue_enqueue (&sample->prof->dumper_queue, &sample->node);
- mono_os_sem_post (&sample->prof->dumper_queue_sem);
-}
-
-static void
-mono_sample_hit (MonoProfiler *profiler, unsigned char *ip, void *context)
-{
- /*
- * Please note: We rely on the runtime loading the profiler with
- * MONO_DL_EAGER (RTLD_NOW) so that references to runtime functions within
- * this function (and its siblings) are resolved when the profiler is
- * loaded. Otherwise, we would potentially invoke the dynamic linker when
- * invoking runtime functions, which is not async-signal-safe.
- */
-
- if (InterlockedRead (&in_shutdown))
- return;
-
- SampleHit *sample = (SampleHit *) mono_lock_free_queue_dequeue (&profiler->sample_reuse_queue);
-
- if (!sample) {
- /*
- * If we're out of reusable sample events and we're not allowed to
- * allocate more, we have no choice but to drop the event.
- */
- if (InterlockedRead (&sample_allocations_ctr) >= max_allocated_sample_hits)
- return;
-
- sample = mono_lock_free_alloc (&profiler->sample_allocator);
- sample->prof = profiler;
- mono_lock_free_queue_node_init (&sample->node, TRUE);
-
- InterlockedIncrement (&sample_allocations_ctr);
- }
-
- sample->count = 0;
- mono_stack_walk_async_safe (&async_walk_stack, context, sample);
-
- sample->time = current_time ();
- sample->tid = thread_id ();
- sample->ip = ip;
-
- mono_thread_hazardous_try_free (sample, enqueue_sample_hit);
-}
-
-static uintptr_t *code_pages = 0;
-static int num_code_pages = 0;
-static int size_code_pages = 0;
-#define CPAGE_SHIFT (9)
-#define CPAGE_SIZE (1 << CPAGE_SHIFT)
-#define CPAGE_MASK (~(CPAGE_SIZE - 1))
-#define CPAGE_ADDR(p) ((p) & CPAGE_MASK)
-
-static uintptr_t
-add_code_page (uintptr_t *hash, uintptr_t hsize, uintptr_t page)
-{
- uintptr_t i;
- uintptr_t start_pos;
- start_pos = (page >> CPAGE_SHIFT) % hsize;
- i = start_pos;
- do {
- if (hash [i] && CPAGE_ADDR (hash [i]) == CPAGE_ADDR (page)) {
- return 0;
- } else if (!hash [i]) {
- hash [i] = page;
- return 1;
- }
- /* wrap around */
- if (++i == hsize)
- i = 0;
- } while (i != start_pos);
- /* should not happen */
- printf ("failed code page store\n");
- return 0;
-}
-
-static void
-add_code_pointer (uintptr_t ip)
-{
- uintptr_t i;
- if (num_code_pages * 2 >= size_code_pages) {
- uintptr_t *n;
- uintptr_t old_size = size_code_pages;
- size_code_pages *= 2;
- if (size_code_pages == 0)
- size_code_pages = 16;
- n = (uintptr_t *) g_calloc (sizeof (uintptr_t) * size_code_pages, 1);
- for (i = 0; i < old_size; ++i) {
- if (code_pages [i])
- add_code_page (n, size_code_pages, code_pages [i]);
- }
- if (code_pages)
- g_free (code_pages);
- code_pages = n;
- }
- num_code_pages += add_code_page (code_pages, size_code_pages, ip & CPAGE_MASK);
-}
-
-/* ELF code crashes on some systems. */
-//#if defined(HAVE_DL_ITERATE_PHDR) && defined(ELFMAG0)
-#if 0
-static void
-dump_ubin (MonoProfiler *prof, const char *filename, uintptr_t load_addr, uint64_t offset, uintptr_t size)
-{
- int len = strlen (filename) + 1;
-
- ENTER_LOG (&sample_ubins_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* load address */ +
- LEB128_SIZE /* offset */ +
- LEB128_SIZE /* size */ +
- nlen /* file name */
- );
-
- emit_event (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_UBIN);
- emit_svalue (logbuffer, load_addr);
- emit_uvalue (logbuffer, offset);
- emit_uvalue (logbuffer, size);
- memcpy (logbuffer->cursor, filename, len);
- logbuffer->cursor += len;
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-#endif
-
-static void
-dump_usym (MonoProfiler *prof, const char *name, uintptr_t value, uintptr_t size)
-{
- int len = strlen (name) + 1;
-
- ENTER_LOG (&sample_usyms_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* value */ +
- LEB128_SIZE /* size */ +
- len /* name */
- );
-
- emit_event (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_USYM);
- emit_ptr (logbuffer, (void*)value);
- emit_value (logbuffer, size);
- memcpy (logbuffer->cursor, name, len);
- logbuffer->cursor += len;
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-
-/* ELF code crashes on some systems. */
-//#if defined(ELFMAG0)
-#if 0
-
-#if SIZEOF_VOID_P == 4
-#define ELF_WSIZE 32
-#else
-#define ELF_WSIZE 64
-#endif
-#ifndef ElfW
-#define ElfW(type) _ElfW (Elf, ELF_WSIZE, type)
-#define _ElfW(e,w,t) _ElfW_1 (e, w, _##t)
-#define _ElfW_1(e,w,t) e##w##t
-#endif
-
-static void
-dump_elf_symbols (MonoProfiler *prof, ElfW(Sym) *symbols, int num_symbols, const char *strtab, void *load_addr)
-{
- int i;
- for (i = 0; i < num_symbols; ++i) {
- const char* sym;
- sym = strtab + symbols [i].st_name;
- if (!symbols [i].st_name || !symbols [i].st_size || (symbols [i].st_info & 0xf) != STT_FUNC)
- continue;
- //printf ("symbol %s at %d\n", sym, symbols [i].st_value);
- dump_usym (sym, (uintptr_t)load_addr + symbols [i].st_value, symbols [i].st_size);
- }
-}
-
-static int
-read_elf_symbols (MonoProfiler *prof, const char *filename, void *load_addr)
-{
- int fd, i;
- void *data;
- struct stat statb;
- uint64_t file_size;
- ElfW(Ehdr) *header;
- ElfW(Shdr) *sheader;
- ElfW(Shdr) *shstrtabh;
- ElfW(Shdr) *symtabh = NULL;
- ElfW(Shdr) *strtabh = NULL;
- ElfW(Sym) *symbols = NULL;
- const char *strtab;
- int num_symbols;
-
- fd = open (filename, O_RDONLY);
- if (fd < 0)
- return 0;
- if (fstat (fd, &statb) != 0) {
- close (fd);
- return 0;
- }
- file_size = statb.st_size;
- data = mmap (NULL, file_size, PROT_READ, MAP_PRIVATE, fd, 0);
- close (fd);
- if (data == MAP_FAILED)
- return 0;
- header = data;
- if (header->e_ident [EI_MAG0] != ELFMAG0 ||
- header->e_ident [EI_MAG1] != ELFMAG1 ||
- header->e_ident [EI_MAG2] != ELFMAG2 ||
- header->e_ident [EI_MAG3] != ELFMAG3 ) {
- munmap (data, file_size);
- return 0;
- }
- sheader = (void*)((char*)data + header->e_shoff);
- shstrtabh = (void*)((char*)sheader + (header->e_shentsize * header->e_shstrndx));
- strtab = (const char*)data + shstrtabh->sh_offset;
- for (i = 0; i < header->e_shnum; ++i) {
- //printf ("section header: %d\n", sheader->sh_type);
- if (sheader->sh_type == SHT_SYMTAB) {
- symtabh = sheader;
- strtabh = (void*)((char*)data + header->e_shoff + sheader->sh_link * header->e_shentsize);
- /*printf ("symtab section header: %d, .strstr: %d\n", i, sheader->sh_link);*/
- break;
- }
- sheader = (void*)((char*)sheader + header->e_shentsize);
- }
- if (!symtabh || !strtabh) {
- munmap (data, file_size);
- return 0;
- }
- strtab = (const char*)data + strtabh->sh_offset;
- num_symbols = symtabh->sh_size / symtabh->sh_entsize;
- symbols = (void*)((char*)data + symtabh->sh_offset);
- dump_elf_symbols (symbols, num_symbols, strtab, load_addr);
- munmap (data, file_size);
- return 1;
-}
-#endif
-
-/* ELF code crashes on some systems. */
-//#if defined(HAVE_DL_ITERATE_PHDR) && defined(ELFMAG0)
-#if 0
-static int
-elf_dl_callback (struct dl_phdr_info *info, size_t size, void *data)
-{
- MonoProfiler *prof = data;
- char buf [256];
- const char *filename;
- BinaryObject *obj;
- char *a = (void*)info->dlpi_addr;
- int i, num_sym;
- ElfW(Dyn) *dyn = NULL;
- ElfW(Sym) *symtab = NULL;
- ElfW(Word) *hash_table = NULL;
- ElfW(Ehdr) *header = NULL;
- const char* strtab = NULL;
- for (obj = prof->binary_objects; obj; obj = obj->next) {
- if (obj->addr == a)
- return 0;
- }
- filename = info->dlpi_name;
- if (!filename)
- return 0;
- if (!info->dlpi_addr && !filename [0]) {
- int l = readlink ("/proc/self/exe", buf, sizeof (buf) - 1);
- if (l > 0) {
- buf [l] = 0;
- filename = buf;
- }
- }
- obj = g_calloc (sizeof (BinaryObject), 1);
- obj->addr = (void*)info->dlpi_addr;
- obj->name = pstrdup (filename);
- obj->next = prof->binary_objects;
- prof->binary_objects = obj;
- //printf ("loaded file: %s at %p, segments: %d\n", filename, (void*)info->dlpi_addr, info->dlpi_phnum);
- a = NULL;
- for (i = 0; i < info->dlpi_phnum; ++i) {
- //printf ("segment type %d file offset: %d, size: %d\n", info->dlpi_phdr[i].p_type, info->dlpi_phdr[i].p_offset, info->dlpi_phdr[i].p_memsz);
- if (info->dlpi_phdr[i].p_type == PT_LOAD && !header) {
- header = (ElfW(Ehdr)*)(info->dlpi_addr + info->dlpi_phdr[i].p_vaddr);
- if (header->e_ident [EI_MAG0] != ELFMAG0 ||
- header->e_ident [EI_MAG1] != ELFMAG1 ||
- header->e_ident [EI_MAG2] != ELFMAG2 ||
- header->e_ident [EI_MAG3] != ELFMAG3 ) {
- header = NULL;
- }
- dump_ubin (prof, filename, info->dlpi_addr + info->dlpi_phdr[i].p_vaddr, info->dlpi_phdr[i].p_offset, info->dlpi_phdr[i].p_memsz);
- } else if (info->dlpi_phdr[i].p_type == PT_DYNAMIC) {
- dyn = (ElfW(Dyn) *)(info->dlpi_addr + info->dlpi_phdr[i].p_vaddr);
- }
- }
- if (read_elf_symbols (prof, filename, (void*)info->dlpi_addr))
- return 0;
- if (!info->dlpi_name || !info->dlpi_name[0])
- return 0;
- if (!dyn)
- return 0;
- for (i = 0; dyn [i].d_tag != DT_NULL; ++i) {
- if (dyn [i].d_tag == DT_SYMTAB) {
- if (symtab && do_debug)
- printf ("multiple symtabs: %d\n", i);
- symtab = (ElfW(Sym) *)(a + dyn [i].d_un.d_ptr);
- } else if (dyn [i].d_tag == DT_HASH) {
- hash_table = (ElfW(Word) *)(a + dyn [i].d_un.d_ptr);
- } else if (dyn [i].d_tag == DT_STRTAB) {
- strtab = (const char*)(a + dyn [i].d_un.d_ptr);
- }
- }
- if (!hash_table)
- return 0;
- num_sym = hash_table [1];
- dump_elf_symbols (prof, symtab, num_sym, strtab, (void*)info->dlpi_addr);
- return 0;
-}
-
-static int
-load_binaries (MonoProfiler *prof)
-{
- dl_iterate_phdr (elf_dl_callback, prof);
- return 1;
-}
-#else
-static int
-load_binaries (MonoProfiler *prof)
-{
- return 0;
-}
-#endif
-
-static const char*
-symbol_for (uintptr_t code)
-{
-#ifdef HAVE_DLADDR
- void *ip = (void*)code;
- Dl_info di;
- if (dladdr (ip, &di)) {
- if (di.dli_sname)
- return di.dli_sname;
- } else {
- /* char **names;
- names = backtrace_symbols (&ip, 1);
- if (names) {
- const char* p = names [0];
- g_free (names);
- return p;
- }
- */
- }
-#endif
- return NULL;
-}
-
-static void
-dump_unmanaged_coderefs (MonoProfiler *prof)
-{
- int i;
- const char* last_symbol;
- uintptr_t addr, page_end;
-
- if (load_binaries (prof))
- return;
- for (i = 0; i < size_code_pages; ++i) {
- const char* sym;
- if (!code_pages [i] || code_pages [i] & 1)
- continue;
- last_symbol = NULL;
- addr = CPAGE_ADDR (code_pages [i]);
- page_end = addr + CPAGE_SIZE;
- code_pages [i] |= 1;
- /* we dump the symbols for the whole page */
- for (; addr < page_end; addr += 16) {
- sym = symbol_for (addr);
- if (sym && sym == last_symbol)
- continue;
- last_symbol = sym;
- if (!sym)
- continue;
- dump_usym (prof, sym, addr, 0); /* let's not guess the size */
- //printf ("found symbol at %p: %s\n", (void*)addr, sym);
- }
- }
-}
-
-typedef struct MonoCounterAgent {
- MonoCounter *counter;
- // MonoCounterAgent specific data :
- void *value;
- size_t value_size;
- short index;
- short emitted;
- struct MonoCounterAgent *next;
-} MonoCounterAgent;
-
-static MonoCounterAgent* counters;
-static int counters_index = 1;
-static mono_mutex_t counters_mutex;
-
-static void
-counters_add_agent (MonoCounter *counter)
-{
- if (InterlockedRead (&in_shutdown))
- return;
-
- MonoCounterAgent *agent, *item;
-
- mono_os_mutex_lock (&counters_mutex);
-
- for (agent = counters; agent; agent = agent->next) {
- if (agent->counter == counter) {
- agent->value_size = 0;
- if (agent->value) {
- g_free (agent->value);
- agent->value = NULL;
- }
- goto done;
- }
- }
-
- agent = (MonoCounterAgent *) g_malloc (sizeof (MonoCounterAgent));
- agent->counter = counter;
- agent->value = NULL;
- agent->value_size = 0;
- agent->index = counters_index++;
- agent->emitted = 0;
- agent->next = NULL;
-
- if (!counters) {
- counters = agent;
- } else {
- item = counters;
- while (item->next)
- item = item->next;
- item->next = agent;
- }
-
-done:
- mono_os_mutex_unlock (&counters_mutex);
-}
-
-static mono_bool
-counters_init_foreach_callback (MonoCounter *counter, gpointer data)
-{
- counters_add_agent (counter);
- return TRUE;
-}
-
-static void
-counters_init (MonoProfiler *profiler)
-{
- mono_os_mutex_init (&counters_mutex);
-
- mono_counters_on_register (&counters_add_agent);
- mono_counters_foreach (counters_init_foreach_callback, NULL);
-}
-
-static void
-counters_emit (MonoProfiler *profiler)
-{
- MonoCounterAgent *agent;
- int len = 0;
- int size =
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* len */
- ;
-
- mono_os_mutex_lock (&counters_mutex);
-
- for (agent = counters; agent; agent = agent->next) {
- if (agent->emitted)
- continue;
-
- size +=
- LEB128_SIZE /* section */ +
- strlen (mono_counter_get_name (agent->counter)) + 1 /* name */ +
- BYTE_SIZE /* type */ +
- BYTE_SIZE /* unit */ +
- BYTE_SIZE /* variance */ +
- LEB128_SIZE /* index */
- ;
-
- len++;
- }
-
- if (!len)
- goto done;
-
- ENTER_LOG (&counter_descriptors_ctr, logbuffer, size);
-
- emit_event (logbuffer, TYPE_SAMPLE_COUNTERS_DESC | TYPE_SAMPLE);
- emit_value (logbuffer, len);
-
- for (agent = counters; agent; agent = agent->next) {
- const char *name;
-
- if (agent->emitted)
- continue;
-
- name = mono_counter_get_name (agent->counter);
- emit_value (logbuffer, mono_counter_get_section (agent->counter));
- emit_string (logbuffer, name, strlen (name) + 1);
- emit_byte (logbuffer, mono_counter_get_type (agent->counter));
- emit_byte (logbuffer, mono_counter_get_unit (agent->counter));
- emit_byte (logbuffer, mono_counter_get_variance (agent->counter));
- emit_value (logbuffer, agent->index);
-
- agent->emitted = 1;
- }
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
-done:
- mono_os_mutex_unlock (&counters_mutex);
-}
-
-static void
-counters_sample (MonoProfiler *profiler, uint64_t timestamp)
-{
- MonoCounterAgent *agent;
- MonoCounter *counter;
- int type;
- int buffer_size;
- void *buffer;
- int size;
-
- counters_emit (profiler);
-
- buffer_size = 8;
- buffer = g_calloc (1, buffer_size);
-
- mono_os_mutex_lock (&counters_mutex);
-
- size =
- EVENT_SIZE /* event */
- ;
-
- for (agent = counters; agent; agent = agent->next) {
- size +=
- LEB128_SIZE /* index */ +
- BYTE_SIZE /* type */ +
- mono_counter_get_size (agent->counter) /* value */
- ;
- }
-
- size +=
- LEB128_SIZE /* stop marker */
- ;
-
- ENTER_LOG (&counter_samples_ctr, logbuffer, size);
-
- emit_event_time (logbuffer, TYPE_SAMPLE_COUNTERS | TYPE_SAMPLE, timestamp);
-
- for (agent = counters; agent; agent = agent->next) {
- size_t size;
-
- counter = agent->counter;
-
- size = mono_counter_get_size (counter);
-
- if (size > buffer_size) {
- buffer_size = size;
- buffer = g_realloc (buffer, buffer_size);
- }
-
- memset (buffer, 0, buffer_size);
-
- g_assert (mono_counters_sample (counter, buffer, size));
-
- type = mono_counter_get_type (counter);
-
- if (!agent->value) {
- agent->value = g_calloc (1, size);
- agent->value_size = size;
- } else {
- if (type == MONO_COUNTER_STRING) {
- if (strcmp (agent->value, buffer) == 0)
- continue;
- } else {
- if (agent->value_size == size && memcmp (agent->value, buffer, size) == 0)
- continue;
- }
- }
-
- emit_uvalue (logbuffer, agent->index);
- emit_byte (logbuffer, type);
- switch (type) {
- case MONO_COUNTER_INT:
-#if SIZEOF_VOID_P == 4
- case MONO_COUNTER_WORD:
-#endif
- emit_svalue (logbuffer, *(int*)buffer - *(int*)agent->value);
- break;
- case MONO_COUNTER_UINT:
- emit_uvalue (logbuffer, *(guint*)buffer - *(guint*)agent->value);
- break;
- case MONO_COUNTER_TIME_INTERVAL:
- case MONO_COUNTER_LONG:
-#if SIZEOF_VOID_P == 8
- case MONO_COUNTER_WORD:
-#endif
- emit_svalue (logbuffer, *(gint64*)buffer - *(gint64*)agent->value);
- break;
- case MONO_COUNTER_ULONG:
- emit_uvalue (logbuffer, *(guint64*)buffer - *(guint64*)agent->value);
- break;
- case MONO_COUNTER_DOUBLE:
- emit_double (logbuffer, *(double*)buffer);
- break;
- case MONO_COUNTER_STRING:
- if (size == 0) {
- emit_byte (logbuffer, 0);
- } else {
- emit_byte (logbuffer, 1);
- emit_string (logbuffer, (char*)buffer, size);
- }
- break;
- default:
- g_assert_not_reached ();
- }
-
- if (type == MONO_COUNTER_STRING && size > agent->value_size) {
- agent->value = g_realloc (agent->value, size);
- agent->value_size = size;
- }
-
- if (size > 0)
- memcpy (agent->value, buffer, size);
- }
- g_free (buffer);
-
- emit_value (logbuffer, 0);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
- mono_os_mutex_unlock (&counters_mutex);
-}
-
-typedef struct _PerfCounterAgent PerfCounterAgent;
-struct _PerfCounterAgent {
- PerfCounterAgent *next;
- int index;
- char *category_name;
- char *name;
- int type;
- gint64 value;
- guint8 emitted;
- guint8 updated;
- guint8 deleted;
-};
-
-static PerfCounterAgent *perfcounters = NULL;
-
-static void
-perfcounters_emit (MonoProfiler *profiler)
-{
- PerfCounterAgent *pcagent;
- int len = 0;
- int size =
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* len */
- ;
-
- for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
- if (pcagent->emitted)
- continue;
-
- size +=
- LEB128_SIZE /* section */ +
- strlen (pcagent->category_name) + 1 /* category name */ +
- strlen (pcagent->name) + 1 /* name */ +
- BYTE_SIZE /* type */ +
- BYTE_SIZE /* unit */ +
- BYTE_SIZE /* variance */ +
- LEB128_SIZE /* index */
- ;
-
- len++;
- }
-
- if (!len)
- return;
-
- ENTER_LOG (&perfcounter_descriptors_ctr, logbuffer, size);
-
- emit_event (logbuffer, TYPE_SAMPLE_COUNTERS_DESC | TYPE_SAMPLE);
- emit_value (logbuffer, len);
-
- for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
- if (pcagent->emitted)
- continue;
-
- emit_value (logbuffer, MONO_COUNTER_PERFCOUNTERS);
- emit_string (logbuffer, pcagent->category_name, strlen (pcagent->category_name) + 1);
- emit_string (logbuffer, pcagent->name, strlen (pcagent->name) + 1);
- emit_byte (logbuffer, MONO_COUNTER_LONG);
- emit_byte (logbuffer, MONO_COUNTER_RAW);
- emit_byte (logbuffer, MONO_COUNTER_VARIABLE);
- emit_value (logbuffer, pcagent->index);
-
- pcagent->emitted = 1;
- }
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-
-static gboolean
-perfcounters_foreach (char *category_name, char *name, unsigned char type, gint64 value, gpointer user_data)
-{
- PerfCounterAgent *pcagent;
-
- for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
- if (strcmp (pcagent->category_name, category_name) != 0 || strcmp (pcagent->name, name) != 0)
- continue;
- if (pcagent->value == value)
- return TRUE;
-
- pcagent->value = value;
- pcagent->updated = 1;
- pcagent->deleted = 0;
- return TRUE;
- }
-
- pcagent = g_new0 (PerfCounterAgent, 1);
- pcagent->next = perfcounters;
- pcagent->index = counters_index++;
- pcagent->category_name = g_strdup (category_name);
- pcagent->name = g_strdup (name);
- pcagent->type = (int) type;
- pcagent->value = value;
- pcagent->emitted = 0;
- pcagent->updated = 1;
- pcagent->deleted = 0;
-
- perfcounters = pcagent;
-
- return TRUE;
-}
-
-static void
-perfcounters_sample (MonoProfiler *profiler, uint64_t timestamp)
-{
- PerfCounterAgent *pcagent;
- int len = 0;
- int size;
-
- mono_os_mutex_lock (&counters_mutex);
-
- /* mark all perfcounters as deleted, foreach will unmark them as necessary */
- for (pcagent = perfcounters; pcagent; pcagent = pcagent->next)
- pcagent->deleted = 1;
-
- mono_perfcounter_foreach (perfcounters_foreach, perfcounters);
-
- perfcounters_emit (profiler);
-
- size =
- EVENT_SIZE /* event */
- ;
-
- for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
- if (pcagent->deleted || !pcagent->updated)
- continue;
-
- size +=
- LEB128_SIZE /* index */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* value */
- ;
-
- len++;
- }
-
- if (!len)
- goto done;
-
- size +=
- LEB128_SIZE /* stop marker */
- ;
-
- ENTER_LOG (&perfcounter_samples_ctr, logbuffer, size);
-
- emit_event_time (logbuffer, TYPE_SAMPLE_COUNTERS | TYPE_SAMPLE, timestamp);
-
- for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
- if (pcagent->deleted || !pcagent->updated)
- continue;
- emit_uvalue (logbuffer, pcagent->index);
- emit_byte (logbuffer, MONO_COUNTER_LONG);
- emit_svalue (logbuffer, pcagent->value);
-
- pcagent->updated = 0;
- }
-
- emit_value (logbuffer, 0);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
-done:
- mono_os_mutex_unlock (&counters_mutex);
-}
-
-static void
-counters_and_perfcounters_sample (MonoProfiler *prof)
-{
- uint64_t now = current_time ();
-
- counters_sample (prof, now);
- perfcounters_sample (prof, now);
-}
-
-#define COVERAGE_DEBUG(x) if (debug_coverage) {x}
-static mono_mutex_t coverage_mutex;
-static MonoConcurrentHashTable *coverage_methods = NULL;
-static MonoConcurrentHashTable *coverage_assemblies = NULL;
-static MonoConcurrentHashTable *coverage_classes = NULL;
-
-static MonoConcurrentHashTable *filtered_classes = NULL;
-static MonoConcurrentHashTable *entered_methods = NULL;
-static MonoConcurrentHashTable *image_to_methods = NULL;
-static MonoConcurrentHashTable *suppressed_assemblies = NULL;
-static gboolean coverage_initialized = FALSE;
-
-static GPtrArray *coverage_data = NULL;
-static int previous_offset = 0;
-
-typedef struct {
- MonoLockFreeQueueNode node;
- MonoMethod *method;
-} MethodNode;
-
-typedef struct {
- int offset;
- int counter;
- char *filename;
- int line;
- int column;
-} CoverageEntry;
-
-static void
-free_coverage_entry (gpointer data, gpointer userdata)
-{
- CoverageEntry *entry = (CoverageEntry *)data;
- g_free (entry->filename);
- g_free (entry);
-}
-
-static void
-obtain_coverage_for_method (MonoProfiler *prof, const MonoProfileCoverageEntry *entry)
-{
- int offset = entry->iloffset - previous_offset;
- CoverageEntry *e = g_new (CoverageEntry, 1);
-
- previous_offset = entry->iloffset;
-
- e->offset = offset;
- e->counter = entry->counter;
- e->filename = g_strdup(entry->filename ? entry->filename : "");
- e->line = entry->line;
- e->column = entry->col;
-
- g_ptr_array_add (coverage_data, e);
-}
-
-static char *
-parse_generic_type_names(char *name)
-{
- char *new_name, *ret;
- int within_generic_declaration = 0, generic_members = 1;
-
- if (name == NULL || *name == '\0')
- return g_strdup ("");
-
- if (!(ret = new_name = (char *) g_calloc (strlen (name) * 4 + 1, sizeof (char))))
- return NULL;
-
- do {
- switch (*name) {
- case '<':
- within_generic_declaration = 1;
- break;
-
- case '>':
- within_generic_declaration = 0;
-
- if (*(name - 1) != '<') {
- *new_name++ = '`';
- *new_name++ = '0' + generic_members;
- } else {
- memcpy (new_name, "<>", 8);
- new_name += 8;
- }
-
- generic_members = 0;
- break;
-
- case ',':
- generic_members++;
- break;
-
- default:
- if (!within_generic_declaration)
- *new_name++ = *name;
-
- break;
- }
- } while (*name++);
-
- return ret;
-}
-
-static int method_id;
-static void
-build_method_buffer (gpointer key, gpointer value, gpointer userdata)
-{
- MonoMethod *method = (MonoMethod *)value;
- MonoProfiler *prof = (MonoProfiler *)userdata;
- MonoClass *klass;
- MonoImage *image;
- char *class_name;
- const char *image_name, *method_name, *sig, *first_filename;
- guint i;
-
- previous_offset = 0;
- coverage_data = g_ptr_array_new ();
-
- mono_profiler_coverage_get (prof, method, obtain_coverage_for_method);
-
- klass = mono_method_get_class (method);
- image = mono_class_get_image (klass);
- image_name = mono_image_get_name (image);
-
- sig = mono_signature_get_desc (mono_method_signature (method), TRUE);
- class_name = parse_generic_type_names (mono_type_get_name (mono_class_get_type (klass)));
- method_name = mono_method_get_name (method);
-
- if (coverage_data->len != 0) {
- CoverageEntry *entry = (CoverageEntry *)coverage_data->pdata[0];
- first_filename = entry->filename ? entry->filename : "";
- } else
- first_filename = "";
-
- image_name = image_name ? image_name : "";
- sig = sig ? sig : "";
- method_name = method_name ? method_name : "";
-
- ENTER_LOG (&coverage_methods_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- strlen (image_name) + 1 /* image name */ +
- strlen (class_name) + 1 /* class name */ +
- strlen (method_name) + 1 /* method name */ +
- strlen (sig) + 1 /* signature */ +
- strlen (first_filename) + 1 /* first file name */ +
- LEB128_SIZE /* token */ +
- LEB128_SIZE /* method id */ +
- LEB128_SIZE /* entries */
- );
-
- emit_event (logbuffer, TYPE_COVERAGE_METHOD | TYPE_COVERAGE);
- emit_string (logbuffer, image_name, strlen (image_name) + 1);
- emit_string (logbuffer, class_name, strlen (class_name) + 1);
- emit_string (logbuffer, method_name, strlen (method_name) + 1);
- emit_string (logbuffer, sig, strlen (sig) + 1);
- emit_string (logbuffer, first_filename, strlen (first_filename) + 1);
-
- emit_uvalue (logbuffer, mono_method_get_token (method));
- emit_uvalue (logbuffer, method_id);
- emit_value (logbuffer, coverage_data->len);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
- for (i = 0; i < coverage_data->len; i++) {
- CoverageEntry *entry = (CoverageEntry *)coverage_data->pdata[i];
-
- ENTER_LOG (&coverage_statements_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* method id */ +
- LEB128_SIZE /* offset */ +
- LEB128_SIZE /* counter */ +
- LEB128_SIZE /* line */ +
- LEB128_SIZE /* column */
- );
-
- emit_event (logbuffer, TYPE_COVERAGE_STATEMENT | TYPE_COVERAGE);
- emit_uvalue (logbuffer, method_id);
- emit_uvalue (logbuffer, entry->offset);
- emit_uvalue (logbuffer, entry->counter);
- emit_uvalue (logbuffer, entry->line);
- emit_uvalue (logbuffer, entry->column);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
- }
-
- method_id++;
-
- g_free (class_name);
-
- g_ptr_array_foreach (coverage_data, free_coverage_entry, NULL);
- g_ptr_array_free (coverage_data, TRUE);
- coverage_data = NULL;
-}
-
-/* This empties the queue */
-static guint
-count_queue (MonoLockFreeQueue *queue)
-{
- MonoLockFreeQueueNode *node;
- guint count = 0;
-
- while ((node = mono_lock_free_queue_dequeue (queue))) {
- count++;
- mono_thread_hazardous_try_free (node, g_free);
- }
-
- return count;
-}
-
-static void
-build_class_buffer (gpointer key, gpointer value, gpointer userdata)
-{
- MonoClass *klass = (MonoClass *)key;
- MonoLockFreeQueue *class_methods = (MonoLockFreeQueue *)value;
- MonoImage *image;
- char *class_name;
- const char *assembly_name;
- int number_of_methods, partially_covered;
- guint fully_covered;
-
- image = mono_class_get_image (klass);
- assembly_name = mono_image_get_name (image);
- class_name = mono_type_get_name (mono_class_get_type (klass));
-
- assembly_name = assembly_name ? assembly_name : "";
- number_of_methods = mono_class_num_methods (klass);
- fully_covered = count_queue (class_methods);
- /* We don't handle partial covered yet */
- partially_covered = 0;
-
- ENTER_LOG (&coverage_classes_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- strlen (assembly_name) + 1 /* assembly name */ +
- strlen (class_name) + 1 /* class name */ +
- LEB128_SIZE /* no. methods */ +
- LEB128_SIZE /* fully covered */ +
- LEB128_SIZE /* partially covered */
- );
-
- emit_event (logbuffer, TYPE_COVERAGE_CLASS | TYPE_COVERAGE);
- emit_string (logbuffer, assembly_name, strlen (assembly_name) + 1);
- emit_string (logbuffer, class_name, strlen (class_name) + 1);
- emit_uvalue (logbuffer, number_of_methods);
- emit_uvalue (logbuffer, fully_covered);
- emit_uvalue (logbuffer, partially_covered);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
- g_free (class_name);
-}
-
-static void
-get_coverage_for_image (MonoImage *image, int *number_of_methods, guint *fully_covered, int *partially_covered)
-{
- MonoLockFreeQueue *image_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (image_to_methods, image);
-
- *number_of_methods = mono_image_get_table_rows (image, MONO_TABLE_METHOD);
- if (image_methods)
- *fully_covered = count_queue (image_methods);
- else
- *fully_covered = 0;
-
- // FIXME: We don't handle partially covered yet.
- *partially_covered = 0;
-}
-
-static void
-build_assembly_buffer (gpointer key, gpointer value, gpointer userdata)
-{
- MonoAssembly *assembly = (MonoAssembly *)value;
- MonoImage *image = mono_assembly_get_image (assembly);
- const char *name, *guid, *filename;
- int number_of_methods = 0, partially_covered = 0;
- guint fully_covered = 0;
-
- name = mono_image_get_name (image);
- guid = mono_image_get_guid (image);
- filename = mono_image_get_filename (image);
-
- name = name ? name : "";
- guid = guid ? guid : "";
- filename = filename ? filename : "";
-
- get_coverage_for_image (image, &number_of_methods, &fully_covered, &partially_covered);
-
- ENTER_LOG (&coverage_assemblies_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- strlen (name) + 1 /* name */ +
- strlen (guid) + 1 /* guid */ +
- strlen (filename) + 1 /* file name */ +
- LEB128_SIZE /* no. methods */ +
- LEB128_SIZE /* fully covered */ +
- LEB128_SIZE /* partially covered */
- );
-
- emit_event (logbuffer, TYPE_COVERAGE_ASSEMBLY | TYPE_COVERAGE);
- emit_string (logbuffer, name, strlen (name) + 1);
- emit_string (logbuffer, guid, strlen (guid) + 1);
- emit_string (logbuffer, filename, strlen (filename) + 1);
- emit_uvalue (logbuffer, number_of_methods);
- emit_uvalue (logbuffer, fully_covered);
- emit_uvalue (logbuffer, partially_covered);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-}
-
-static void
-dump_coverage (MonoProfiler *prof)
-{
- if (!coverage_initialized)
- return;
-
- COVERAGE_DEBUG(fprintf (stderr, "Coverage: Started dump\n");)
- method_id = 0;
-
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_foreach (coverage_assemblies, build_assembly_buffer, NULL);
- mono_conc_hashtable_foreach (coverage_classes, build_class_buffer, NULL);
- mono_conc_hashtable_foreach (coverage_methods, build_method_buffer, prof);
- mono_os_mutex_unlock (&coverage_mutex);
-
- COVERAGE_DEBUG(fprintf (stderr, "Coverage: Finished dump\n");)
-}
-
-static void
-process_method_enter_coverage (MonoProfiler *prof, MonoMethod *method)
-{
- MonoClass *klass;
- MonoImage *image;
-
- if (!coverage_initialized)
- return;
-
- klass = mono_method_get_class (method);
- image = mono_class_get_image (klass);
-
- if (mono_conc_hashtable_lookup (suppressed_assemblies, (gpointer) mono_image_get_name (image)))
- return;
-
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_insert (entered_methods, method, method);
- mono_os_mutex_unlock (&coverage_mutex);
-}
-
-static MonoLockFreeQueueNode *
-create_method_node (MonoMethod *method)
-{
- MethodNode *node = (MethodNode *) g_malloc (sizeof (MethodNode));
- mono_lock_free_queue_node_init ((MonoLockFreeQueueNode *) node, FALSE);
- node->method = method;
-
- return (MonoLockFreeQueueNode *) node;
-}
-
-static gboolean
-coverage_filter (MonoProfiler *prof, MonoMethod *method)
-{
- MonoError error;
- MonoClass *klass;
- MonoImage *image;
- MonoAssembly *assembly;
- MonoMethodHeader *header;
- guint32 iflags, flags, code_size;
- char *fqn, *classname;
- gboolean has_positive, found;
- MonoLockFreeQueue *image_methods, *class_methods;
- MonoLockFreeQueueNode *node;
-
- g_assert (coverage_initialized && "Why are we being asked for coverage filter info when we're not doing coverage?");
-
- COVERAGE_DEBUG(fprintf (stderr, "Coverage filter for %s\n", mono_method_get_name (method));)
-
- flags = mono_method_get_flags (method, &iflags);
- if ((iflags & 0x1000 /*METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL*/) ||
- (flags & 0x2000 /*METHOD_ATTRIBUTE_PINVOKE_IMPL*/)) {
- COVERAGE_DEBUG(fprintf (stderr, " Internal call or pinvoke - ignoring\n");)
- return FALSE;
- }
-
- // Don't need to do anything else if we're already tracking this method
- if (mono_conc_hashtable_lookup (coverage_methods, method)) {
- COVERAGE_DEBUG(fprintf (stderr, " Already tracking\n");)
- return TRUE;
- }
-
- klass = mono_method_get_class (method);
- image = mono_class_get_image (klass);
-
- // Don't handle coverage for the core assemblies
- if (mono_conc_hashtable_lookup (suppressed_assemblies, (gpointer) mono_image_get_name (image)) != NULL)
- return FALSE;
-
- if (prof->coverage_filters) {
- /* Check already filtered classes first */
- if (mono_conc_hashtable_lookup (filtered_classes, klass)) {
- COVERAGE_DEBUG(fprintf (stderr, " Already filtered\n");)
- return FALSE;
- }
-
- classname = mono_type_get_name (mono_class_get_type (klass));
-
- fqn = g_strdup_printf ("[%s]%s", mono_image_get_name (image), classname);
-
- COVERAGE_DEBUG(fprintf (stderr, " Looking for %s in filter\n", fqn);)
- // Check positive filters first
- has_positive = FALSE;
- found = FALSE;
- for (guint i = 0; i < prof->coverage_filters->len; ++i) {
- char *filter = (char *)g_ptr_array_index (prof->coverage_filters, i);
-
- if (filter [0] == '+') {
- filter = &filter [1];
-
- COVERAGE_DEBUG(fprintf (stderr, " Checking against +%s ...", filter);)
-
- if (strstr (fqn, filter) != NULL) {
- COVERAGE_DEBUG(fprintf (stderr, "matched\n");)
- found = TRUE;
- } else
- COVERAGE_DEBUG(fprintf (stderr, "no match\n");)
-
- has_positive = TRUE;
- }
- }
-
- if (has_positive && !found) {
- COVERAGE_DEBUG(fprintf (stderr, " Positive match was not found\n");)
-
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_insert (filtered_classes, klass, klass);
- mono_os_mutex_unlock (&coverage_mutex);
- g_free (fqn);
- g_free (classname);
-
- return FALSE;
- }
-
- for (guint i = 0; i < prof->coverage_filters->len; ++i) {
- // FIXME: Is substring search sufficient?
- char *filter = (char *)g_ptr_array_index (prof->coverage_filters, i);
- if (filter [0] == '+')
- continue;
-
- // Skip '-'
- filter = &filter [1];
- COVERAGE_DEBUG(fprintf (stderr, " Checking against -%s ...", filter);)
-
- if (strstr (fqn, filter) != NULL) {
- COVERAGE_DEBUG(fprintf (stderr, "matched\n");)
-
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_insert (filtered_classes, klass, klass);
- mono_os_mutex_unlock (&coverage_mutex);
- g_free (fqn);
- g_free (classname);
-
- return FALSE;
- } else
- COVERAGE_DEBUG(fprintf (stderr, "no match\n");)
-
- }
-
- g_free (fqn);
- g_free (classname);
- }
-
- COVERAGE_DEBUG(fprintf (stderr, " Handling coverage for %s\n", mono_method_get_name (method));)
- header = mono_method_get_header_checked (method, &error);
- mono_error_cleanup (&error);
-
- mono_method_header_get_code (header, &code_size, NULL);
-
- assembly = mono_image_get_assembly (image);
-
- // Need to keep the assemblies around for as long as they are kept in the hashtable
- // Nunit, for example, has a habit of unloading them before the coverage statistics are
- // generated causing a crash. See https://bugzilla.xamarin.com/show_bug.cgi?id=39325
- mono_assembly_addref (assembly);
-
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_insert (coverage_methods, method, method);
- mono_conc_hashtable_insert (coverage_assemblies, assembly, assembly);
- mono_os_mutex_unlock (&coverage_mutex);
-
- image_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (image_to_methods, image);
-
- if (image_methods == NULL) {
- image_methods = (MonoLockFreeQueue *) g_malloc (sizeof (MonoLockFreeQueue));
- mono_lock_free_queue_init (image_methods);
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_insert (image_to_methods, image, image_methods);
- mono_os_mutex_unlock (&coverage_mutex);
- }
-
- node = create_method_node (method);
- mono_lock_free_queue_enqueue (image_methods, node);
-
- class_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (coverage_classes, klass);
-
- if (class_methods == NULL) {
- class_methods = (MonoLockFreeQueue *) g_malloc (sizeof (MonoLockFreeQueue));
- mono_lock_free_queue_init (class_methods);
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_insert (coverage_classes, klass, class_methods);
- mono_os_mutex_unlock (&coverage_mutex);
- }
-
- node = create_method_node (method);
- mono_lock_free_queue_enqueue (class_methods, node);
-
- return TRUE;
-}
-
-#define LINE_BUFFER_SIZE 4096
-/* Max file limit of 128KB */
-#define MAX_FILE_SIZE 128 * 1024
-static char *
-get_file_content (FILE *stream)
-{
- char *buffer;
- ssize_t bytes_read;
- long filesize;
- int res, offset = 0;
-
- res = fseek (stream, 0, SEEK_END);
- if (res < 0)
- return NULL;
-
- filesize = ftell (stream);
- if (filesize < 0)
- return NULL;
-
- res = fseek (stream, 0, SEEK_SET);
- if (res < 0)
- return NULL;
-
- if (filesize > MAX_FILE_SIZE)
- return NULL;
-
- buffer = (char *) g_malloc ((filesize + 1) * sizeof (char));
- while ((bytes_read = fread (buffer + offset, 1, LINE_BUFFER_SIZE, stream)) > 0)
- offset += bytes_read;
-
- /* NULL terminate our buffer */
- buffer[filesize] = '\0';
- return buffer;
-}
-
-static char *
-get_next_line (char *contents, char **next_start)
-{
- char *p = contents;
-
- if (p == NULL || *p == '\0') {
- *next_start = NULL;
- return NULL;
- }
-
- while (*p != '\n' && *p != '\0')
- p++;
-
- if (*p == '\n') {
- *p = '\0';
- *next_start = p + 1;
- } else
- *next_start = NULL;
-
- return contents;
-}
-
-static void
-init_suppressed_assemblies (void)
-{
- char *content;
- char *line;
- FILE *sa_file;
-
- suppressed_assemblies = mono_conc_hashtable_new (g_str_hash, g_str_equal);
- sa_file = fopen (SUPPRESSION_DIR "/mono-profiler-log.suppression", "r");
- if (sa_file == NULL)
- return;
-
- /* Don't need to free @content as it is referred to by the lines stored in @suppressed_assemblies */
- content = get_file_content (sa_file);
- if (content == NULL) {
- g_error ("mono-profiler-log.suppression is greater than 128kb - aborting\n");
- }
-
- while ((line = get_next_line (content, &content))) {
- line = g_strchomp (g_strchug (line));
- /* No locking needed as we're doing initialization */
- mono_conc_hashtable_insert (suppressed_assemblies, line, line);
- }
-
- fclose (sa_file);
-}
-
-static void
-parse_cov_filter_file (GPtrArray *filters, const char *file)
-{
- FILE *filter_file;
- char *line, *content;
-
- filter_file = fopen (file, "r");
- if (filter_file == NULL) {
- fprintf (stderr, "Unable to open %s\n", file);
- return;
- }
-
- /* Don't need to free content as it is referred to by the lines stored in @filters */
- content = get_file_content (filter_file);
- if (content == NULL)
- fprintf (stderr, "WARNING: %s is greater than 128kb - ignoring\n", file);
-
- while ((line = get_next_line (content, &content)))
- g_ptr_array_add (filters, g_strchug (g_strchomp (line)));
-
- fclose (filter_file);
-}
-
-static void
-coverage_init (MonoProfiler *prof)
-{
- g_assert (!coverage_initialized && "Why are we initializing coverage twice?");
-
- COVERAGE_DEBUG(fprintf (stderr, "Coverage initialized\n");)
-
- mono_os_mutex_init (&coverage_mutex);
- coverage_methods = mono_conc_hashtable_new (NULL, NULL);
- coverage_assemblies = mono_conc_hashtable_new (NULL, NULL);
- coverage_classes = mono_conc_hashtable_new (NULL, NULL);
- filtered_classes = mono_conc_hashtable_new (NULL, NULL);
- entered_methods = mono_conc_hashtable_new (NULL, NULL);
- image_to_methods = mono_conc_hashtable_new (NULL, NULL);
- init_suppressed_assemblies ();
-
- coverage_initialized = TRUE;
-}
-
-static void
-unref_coverage_assemblies (gpointer key, gpointer value, gpointer userdata)
-{
- MonoAssembly *assembly = (MonoAssembly *)value;
- mono_assembly_close (assembly);
-}
-
-static void
-free_sample_hit (gpointer p)
-{
- mono_lock_free_free (p, SAMPLE_BLOCK_SIZE);
-}
-
-static void
-cleanup_reusable_samples (MonoProfiler *prof)
-{
- SampleHit *sample;
-
- while ((sample = (SampleHit *) mono_lock_free_queue_dequeue (&prof->sample_reuse_queue)))
- mono_thread_hazardous_try_free (sample, free_sample_hit);
-}
-
-static void
-log_shutdown (MonoProfiler *prof)
-{
- InterlockedWrite (&in_shutdown, 1);
-
- if (!no_counters)
- counters_and_perfcounters_sample (prof);
-
- dump_coverage (prof);
-
- char c = 1;
-
- if (write (prof->pipes [1], &c, 1) != 1) {
- fprintf (stderr, "Could not write to pipe: %s\n", strerror (errno));
- exit (1);
- }
-
- mono_native_thread_join (prof->helper_thread);
-
- mono_os_mutex_destroy (&counters_mutex);
-
- MonoCounterAgent *mc_next;
-
- for (MonoCounterAgent *cur = counters; cur; cur = mc_next) {
- mc_next = cur->next;
- g_free (cur);
- }
-
- PerfCounterAgent *pc_next;
-
- for (PerfCounterAgent *cur = perfcounters; cur; cur = pc_next) {
- pc_next = cur->next;
- g_free (cur);
- }
-
- /*
- * Ensure that we empty the LLS completely, even if some nodes are
- * not immediately removed upon calling mono_lls_remove (), by
- * iterating until the head is NULL.
- */
- while (profiler_thread_list.head) {
- MONO_LLS_FOREACH_SAFE (&profiler_thread_list, MonoProfilerThread, thread) {
- g_assert (thread->attached && "Why is a thread in the LLS not attached?");
-
- remove_thread (thread);
- } MONO_LLS_FOREACH_SAFE_END
- }
-
- /*
- * Ensure that all threads have been freed, so that we don't miss any
- * buffers when we shut down the writer thread below.
- */
- mono_thread_hazardous_try_free_all ();
-
- InterlockedWrite (&prof->run_dumper_thread, 0);
- mono_os_sem_post (&prof->dumper_queue_sem);
- mono_native_thread_join (prof->dumper_thread);
- mono_os_sem_destroy (&prof->dumper_queue_sem);
-
- InterlockedWrite (&prof->run_writer_thread, 0);
- mono_os_sem_post (&prof->writer_queue_sem);
- mono_native_thread_join (prof->writer_thread);
- mono_os_sem_destroy (&prof->writer_queue_sem);
-
- /*
- * Free all writer queue entries, and ensure that all sample hits will be
- * added to the sample reuse queue.
- */
- mono_thread_hazardous_try_free_all ();
-
- cleanup_reusable_samples (prof);
-
- /*
- * Finally, make sure that all sample hits are freed. This should cover all
- * hazardous data from the profiler. We can now be sure that the runtime
- * won't later invoke free functions in the profiler library after it has
- * been unloaded.
- */
- mono_thread_hazardous_try_free_all ();
-
- g_assert (!InterlockedRead (&buffer_rwlock_count) && "Why is the reader count still non-zero?");
- g_assert (!InterlockedReadPointer (&buffer_rwlock_exclusive) && "Why does someone still hold the exclusive lock?");
-
-#if defined (HAVE_SYS_ZLIB)
- if (prof->gzfile)
- gzclose (prof->gzfile);
-#endif
- if (prof->pipe_output)
- pclose (prof->file);
- else
- fclose (prof->file);
-
- mono_conc_hashtable_destroy (prof->method_table);
- mono_os_mutex_destroy (&prof->method_table_mutex);
-
- if (coverage_initialized) {
- mono_os_mutex_lock (&coverage_mutex);
- mono_conc_hashtable_foreach (coverage_assemblies, unref_coverage_assemblies, prof);
- mono_os_mutex_unlock (&coverage_mutex);
-
- mono_conc_hashtable_destroy (coverage_methods);
- mono_conc_hashtable_destroy (coverage_assemblies);
- mono_conc_hashtable_destroy (coverage_classes);
- mono_conc_hashtable_destroy (filtered_classes);
-
- mono_conc_hashtable_destroy (entered_methods);
- mono_conc_hashtable_destroy (image_to_methods);
- mono_conc_hashtable_destroy (suppressed_assemblies);
- mono_os_mutex_destroy (&coverage_mutex);
- }
-
- PROF_TLS_FREE ();
-
- g_free (prof->args);
- g_free (prof);
-}
-
-static char*
-new_filename (const char* filename)
-{
- time_t t = time (NULL);
- int pid = process_id ();
- char pid_buf [16];
- char time_buf [16];
- char *res, *d;
- const char *p;
- int count_dates = 0;
- int count_pids = 0;
- int s_date, s_pid;
- struct tm *ts;
- for (p = filename; *p; p++) {
- if (*p != '%')
- continue;
- p++;
- if (*p == 't')
- count_dates++;
- else if (*p == 'p')
- count_pids++;
- else if (*p == 0)
- break;
- }
- if (!count_dates && !count_pids)
- return pstrdup (filename);
- snprintf (pid_buf, sizeof (pid_buf), "%d", pid);
- ts = gmtime (&t);
- snprintf (time_buf, sizeof (time_buf), "%d%02d%02d%02d%02d%02d",
- 1900 + ts->tm_year, 1 + ts->tm_mon, ts->tm_mday, ts->tm_hour, ts->tm_min, ts->tm_sec);
- s_date = strlen (time_buf);
- s_pid = strlen (pid_buf);
- d = res = (char *) g_malloc (strlen (filename) + s_date * count_dates + s_pid * count_pids);
- for (p = filename; *p; p++) {
- if (*p != '%') {
- *d++ = *p;
- continue;
- }
- p++;
- if (*p == 't') {
- strcpy (d, time_buf);
- d += s_date;
- continue;
- } else if (*p == 'p') {
- strcpy (d, pid_buf);
- d += s_pid;
- continue;
- } else if (*p == '%') {
- *d++ = '%';
- continue;
- } else if (*p == 0)
- break;
- *d++ = '%';
- *d++ = *p;
- }
- *d = 0;
- return res;
-}
-
-static void
-add_to_fd_set (fd_set *set, int fd, int *max_fd)
-{
- /*
- * This should only trigger for the basic FDs (server socket, pipes) at
- * startup if for some mysterious reason they're too large. In this case,
- * the profiler really can't function, and we're better off printing an
- * error and exiting.
- */
- if (fd >= FD_SETSIZE) {
- fprintf (stderr, "File descriptor is out of bounds for fd_set: %d\n", fd);
- exit (1);
- }
-
- FD_SET (fd, set);
-
- if (*max_fd < fd)
- *max_fd = fd;
-}
-
-static void *
-helper_thread (void *arg)
-{
- MonoProfiler *prof = (MonoProfiler *) arg;
-
- mono_threads_attach_tools_thread ();
- mono_native_thread_set_name (mono_native_thread_id_get (), "Profiler helper");
-
- MonoProfilerThread *thread = init_thread (prof, FALSE);
-
- GArray *command_sockets = g_array_new (FALSE, FALSE, sizeof (int));
-
- while (1) {
- fd_set rfds;
- int max_fd = -1;
-
- FD_ZERO (&rfds);
-
- add_to_fd_set (&rfds, prof->server_socket, &max_fd);
- add_to_fd_set (&rfds, prof->pipes [0], &max_fd);
-
- for (gint i = 0; i < command_sockets->len; i++)
- add_to_fd_set (&rfds, g_array_index (command_sockets, int, i), &max_fd);
-
- struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
-
- // Sleep for 1sec or until a file descriptor has data.
- if (select (max_fd + 1, &rfds, NULL, NULL, &tv) == -1) {
- if (errno == EINTR)
- continue;
-
- fprintf (stderr, "Error in mono-profiler-log server: %s", strerror (errno));
- exit (1);
- }
-
- if (!no_counters)
- counters_and_perfcounters_sample (prof);
-
- buffer_lock_excl ();
-
- sync_point (SYNC_POINT_PERIODIC);
-
- buffer_unlock_excl ();
-
- // Are we shutting down?
- if (FD_ISSET (prof->pipes [0], &rfds)) {
- char c;
- read (prof->pipes [0], &c, 1);
- break;
- }
-
- for (gint i = 0; i < command_sockets->len; i++) {
- int fd = g_array_index (command_sockets, int, i);
-
- if (!FD_ISSET (fd, &rfds))
- continue;
-
- char buf [64];
- int len = read (fd, buf, sizeof (buf) - 1);
-
- if (len == -1)
- continue;
-
- if (!len) {
- // The other end disconnected.
- g_array_remove_index (command_sockets, i);
- close (fd);
-
- continue;
- }
-
- buf [len] = 0;
-
- if (!strcmp (buf, "heapshot\n") && hs_mode_ondemand) {
- // Rely on the finalization callbacks invoking process_requests ().
- heapshot_requested = 1;
- mono_gc_finalize_notify ();
- }
- }
-
- if (FD_ISSET (prof->server_socket, &rfds)) {
- int fd = accept (prof->server_socket, NULL, NULL);
-
- if (fd != -1) {
- if (fd >= FD_SETSIZE)
- close (fd);
- else
- g_array_append_val (command_sockets, fd);
- }
- }
- }
-
- for (gint i = 0; i < command_sockets->len; i++)
- close (g_array_index (command_sockets, int, i));
-
- g_array_free (command_sockets, TRUE);
-
- send_log_unsafe (FALSE);
- deinit_thread (thread);
-
- mono_thread_info_detach ();
-
- return NULL;
-}
-
-static void
-start_helper_thread (MonoProfiler* prof)
-{
- if (pipe (prof->pipes) == -1) {
- fprintf (stderr, "Cannot create pipe: %s\n", strerror (errno));
- exit (1);
- }
-
- prof->server_socket = socket (PF_INET, SOCK_STREAM, 0);
-
- if (prof->server_socket == -1) {
- fprintf (stderr, "Cannot create server socket: %s\n", strerror (errno));
- exit (1);
- }
-
- struct sockaddr_in server_address;
-
- memset (&server_address, 0, sizeof (server_address));
- server_address.sin_family = AF_INET;
- server_address.sin_addr.s_addr = INADDR_ANY;
- server_address.sin_port = htons (prof->command_port);
-
- if (bind (prof->server_socket, (struct sockaddr *) &server_address, sizeof (server_address)) == -1) {
- fprintf (stderr, "Cannot bind server socket on port %d: %s\n", prof->command_port, strerror (errno));
- close (prof->server_socket);
- exit (1);
- }
-
- if (listen (prof->server_socket, 1) == -1) {
- fprintf (stderr, "Cannot listen on server socket: %s\n", strerror (errno));
- close (prof->server_socket);
- exit (1);
- }
-
- socklen_t slen = sizeof (server_address);
-
- if (getsockname (prof->server_socket, (struct sockaddr *) &server_address, &slen)) {
- fprintf (stderr, "Could not get assigned port: %s\n", strerror (errno));
- close (prof->server_socket);
- exit (1);
- }
-
- prof->command_port = ntohs (server_address.sin_port);
-
- if (!mono_native_thread_create (&prof->helper_thread, helper_thread, prof)) {
- fprintf (stderr, "Could not start helper thread\n");
- close (prof->server_socket);
- exit (1);
- }
-}
-
-static void
-free_writer_entry (gpointer p)
-{
- mono_lock_free_free (p, WRITER_ENTRY_BLOCK_SIZE);
-}
-
-static gboolean
-handle_writer_queue_entry (MonoProfiler *prof)
-{
- WriterQueueEntry *entry;
-
- if ((entry = (WriterQueueEntry *) mono_lock_free_queue_dequeue (&prof->writer_queue))) {
- if (!entry->methods)
- goto no_methods;
-
- gboolean wrote_methods = FALSE;
-
- /*
- * Encode the method events in a temporary log buffer that we
- * flush to disk before the main buffer, ensuring that all
- * methods have metadata emitted before they're referenced.
- *
- * We use a 'proper' thread-local buffer for this as opposed
- * to allocating and freeing a buffer by hand because the call
- * to mono_method_full_name () below may trigger class load
- * events when it retrieves the signature of the method. So a
- * thread-local buffer needs to exist when such events occur.
- */
- for (guint i = 0; i < entry->methods->len; i++) {
- MethodInfo *info = (MethodInfo *) g_ptr_array_index (entry->methods, i);
-
- if (mono_conc_hashtable_lookup (prof->method_table, info->method))
- goto free_info; // This method already has metadata emitted.
-
- /*
- * Other threads use this hash table to get a general
- * idea of whether a method has already been emitted to
- * the stream. Due to the way we add to this table, it
- * can easily happen that multiple threads queue up the
- * same methods, but that's OK since eventually all
- * methods will be in this table and the thread-local
- * method lists will just be empty for the rest of the
- * app's lifetime.
- */
- mono_os_mutex_lock (&prof->method_table_mutex);
- mono_conc_hashtable_insert (prof->method_table, info->method, info->method);
- mono_os_mutex_unlock (&prof->method_table_mutex);
-
- char *name = mono_method_full_name (info->method, 1);
- int nlen = strlen (name) + 1;
- void *cstart = info->ji ? mono_jit_info_get_code_start (info->ji) : NULL;
- int csize = info->ji ? mono_jit_info_get_code_size (info->ji) : 0;
-
- ENTER_LOG (&method_jits_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- LEB128_SIZE /* method */ +
- LEB128_SIZE /* start */ +
- LEB128_SIZE /* size */ +
- nlen /* name */
- );
-
- emit_event_time (logbuffer, TYPE_JIT | TYPE_METHOD, info->time);
- emit_method_inner (logbuffer, info->method);
- emit_ptr (logbuffer, cstart);
- emit_value (logbuffer, csize);
-
- memcpy (logbuffer->cursor, name, nlen);
- logbuffer->cursor += nlen;
-
- EXIT_LOG_EXPLICIT (NO_SEND, NO_REQUESTS);
-
- mono_free (name);
-
- wrote_methods = TRUE;
-
- free_info:
- g_free (info);
- }
-
- g_ptr_array_free (entry->methods, TRUE);
-
- if (wrote_methods) {
- dump_buffer_threadless (prof, PROF_TLS_GET ()->buffer);
- init_buffer_state (PROF_TLS_GET ());
- }
-
- no_methods:
- dump_buffer (prof, entry->buffer);
-
- mono_thread_hazardous_try_free (entry, free_writer_entry);
-
- return TRUE;
- }
-
- return FALSE;
-}
-
-static void *
-writer_thread (void *arg)
-{
- MonoProfiler *prof = (MonoProfiler *)arg;
-
- mono_threads_attach_tools_thread ();
- mono_native_thread_set_name (mono_native_thread_id_get (), "Profiler writer");
-
- dump_header (prof);
-
- MonoProfilerThread *thread = init_thread (prof, FALSE);
-
- while (InterlockedRead (&prof->run_writer_thread)) {
- mono_os_sem_wait (&prof->writer_queue_sem, MONO_SEM_FLAGS_NONE);
- handle_writer_queue_entry (prof);
- }
-
- /* Drain any remaining entries on shutdown. */
- while (handle_writer_queue_entry (prof));
-
- free_buffer (thread->buffer, thread->buffer->size);
- deinit_thread (thread);
-
- mono_thread_info_detach ();
-
- return NULL;
-}
-
-static void
-start_writer_thread (MonoProfiler* prof)
-{
- InterlockedWrite (&prof->run_writer_thread, 1);
-
- if (!mono_native_thread_create (&prof->writer_thread, writer_thread, prof)) {
- fprintf (stderr, "Could not start writer thread\n");
- exit (1);
- }
-}
-
-static void
-reuse_sample_hit (gpointer p)
-{
- SampleHit *sample = p;
-
- mono_lock_free_queue_node_unpoison (&sample->node);
- mono_lock_free_queue_enqueue (&sample->prof->sample_reuse_queue, &sample->node);
-}
-
-static gboolean
-handle_dumper_queue_entry (MonoProfiler *prof)
-{
- SampleHit *sample;
-
- if ((sample = (SampleHit *) mono_lock_free_queue_dequeue (&prof->dumper_queue))) {
- for (int i = 0; i < sample->count; ++i) {
- MonoMethod *method = sample->frames [i].method;
- MonoDomain *domain = sample->frames [i].domain;
- void *address = sample->frames [i].base_address;
-
- if (!method) {
- g_assert (domain && "What happened to the domain pointer?");
- g_assert (address && "What happened to the instruction pointer?");
-
- MonoJitInfo *ji = mono_jit_info_table_find (domain, (char *) address);
-
- if (ji)
- sample->frames [i].method = mono_jit_info_get_method (ji);
- }
- }
-
- ENTER_LOG (&sample_hits_ctr, logbuffer,
- EVENT_SIZE /* event */ +
- BYTE_SIZE /* type */ +
- LEB128_SIZE /* tid */ +
- LEB128_SIZE /* count */ +
- 1 * (
- LEB128_SIZE /* ip */
- ) +
- LEB128_SIZE /* managed count */ +
- sample->count * (
- LEB128_SIZE /* method */
- )
- );
-
- emit_event_time (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_HIT, sample->time);
- emit_byte (logbuffer, SAMPLE_CYCLES);
- emit_ptr (logbuffer, (void *) sample->tid);
- emit_value (logbuffer, 1);
-
- // TODO: Actual native unwinding.
- for (int i = 0; i < 1; ++i) {
- emit_ptr (logbuffer, sample->ip);
- add_code_pointer ((uintptr_t) sample->ip);
- }
-
- /* new in data version 6 */
- emit_uvalue (logbuffer, sample->count);
-
- for (int i = 0; i < sample->count; ++i)
- emit_method (logbuffer, sample->frames [i].method);
-
- EXIT_LOG_EXPLICIT (DO_SEND, NO_REQUESTS);
-
- mono_thread_hazardous_try_free (sample, reuse_sample_hit);
-
- dump_unmanaged_coderefs (prof);
- }
-
- return FALSE;
-}
-
-static void *
-dumper_thread (void *arg)
-{
- MonoProfiler *prof = (MonoProfiler *)arg;
-
- mono_threads_attach_tools_thread ();
- mono_native_thread_set_name (mono_native_thread_id_get (), "Profiler dumper");
-
- MonoProfilerThread *thread = init_thread (prof, FALSE);
-
- while (InterlockedRead (&prof->run_dumper_thread)) {
- mono_os_sem_wait (&prof->dumper_queue_sem, MONO_SEM_FLAGS_NONE);
- handle_dumper_queue_entry (prof);
- }
-
- /* Drain any remaining entries on shutdown. */
- while (handle_dumper_queue_entry (prof));
-
- send_log_unsafe (FALSE);
- deinit_thread (thread);
-
- mono_thread_info_detach ();
-
- return NULL;
-}
-
-static void
-start_dumper_thread (MonoProfiler* prof)
-{
- InterlockedWrite (&prof->run_dumper_thread, 1);
-
- if (!mono_native_thread_create (&prof->dumper_thread, dumper_thread, prof)) {
- fprintf (stderr, "Could not start dumper thread\n");
- exit (1);
- }
-}
-
-static void
-register_counter (const char *name, gint32 *counter)
-{
- mono_counters_register (name, MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, counter);
-}
-
-static void
-runtime_initialized (MonoProfiler *profiler)
-{
- InterlockedWrite (&runtime_inited, 1);
-
- register_counter ("Sample events allocated", &sample_allocations_ctr);
- register_counter ("Log buffers allocated", &buffer_allocations_ctr);
-
- register_counter ("Event: Sync points", &sync_points_ctr);
- register_counter ("Event: Heap objects", &heap_objects_ctr);
- register_counter ("Event: Heap starts", &heap_starts_ctr);
- register_counter ("Event: Heap ends", &heap_ends_ctr);
- register_counter ("Event: Heap roots", &heap_roots_ctr);
- register_counter ("Event: GC events", &gc_events_ctr);
- register_counter ("Event: GC resizes", &gc_resizes_ctr);
- register_counter ("Event: GC allocations", &gc_allocs_ctr);
- register_counter ("Event: GC moves", &gc_moves_ctr);
- register_counter ("Event: GC handle creations", &gc_handle_creations_ctr);
- register_counter ("Event: GC handle deletions", &gc_handle_deletions_ctr);
- register_counter ("Event: GC finalize starts", &finalize_begins_ctr);
- register_counter ("Event: GC finalize ends", &finalize_ends_ctr);
- register_counter ("Event: GC finalize object starts", &finalize_object_begins_ctr);
- register_counter ("Event: GC finalize object ends", &finalize_object_ends_ctr);
- register_counter ("Event: Image loads", &image_loads_ctr);
- register_counter ("Event: Image unloads", &image_unloads_ctr);
- register_counter ("Event: Assembly loads", &assembly_loads_ctr);
- register_counter ("Event: Assembly unloads", &assembly_unloads_ctr);
- register_counter ("Event: Class loads", &class_loads_ctr);
- register_counter ("Event: Class unloads", &class_unloads_ctr);
- register_counter ("Event: Method entries", &method_entries_ctr);
- register_counter ("Event: Method exits", &method_exits_ctr);
- register_counter ("Event: Method exception leaves", &method_exception_exits_ctr);
- register_counter ("Event: Method JITs", &method_jits_ctr);
- register_counter ("Event: Code buffers", &code_buffers_ctr);
- register_counter ("Event: Exception throws", &exception_throws_ctr);
- register_counter ("Event: Exception clauses", &exception_clauses_ctr);
- register_counter ("Event: Monitor contentions", &monitor_contentions_ctr);
- register_counter ("Event: Monitor acquisitions", &monitor_acquisitions_ctr);
- register_counter ("Event: Monitor failures", &monitor_failures_ctr);
- register_counter ("Event: Thread starts", &thread_starts_ctr);
- register_counter ("Event: Thread ends", &thread_ends_ctr);
- register_counter ("Event: Thread names", &thread_names_ctr);
- register_counter ("Event: Domain loads", &domain_loads_ctr);
- register_counter ("Event: Domain unloads", &domain_unloads_ctr);
- register_counter ("Event: Domain names", &domain_names_ctr);
- register_counter ("Event: Context loads", &context_loads_ctr);
- register_counter ("Event: Context unloads", &context_unloads_ctr);
- register_counter ("Event: Sample binaries", &sample_ubins_ctr);
- register_counter ("Event: Sample symbols", &sample_usyms_ctr);
- register_counter ("Event: Sample hits", &sample_hits_ctr);
- register_counter ("Event: Counter descriptors", &counter_descriptors_ctr);
- register_counter ("Event: Counter samples", &counter_samples_ctr);
- register_counter ("Event: Performance counter descriptors", &perfcounter_descriptors_ctr);
- register_counter ("Event: Performance counter samples", &perfcounter_samples_ctr);
- register_counter ("Event: Coverage methods", &coverage_methods_ctr);
- register_counter ("Event: Coverage statements", &coverage_statements_ctr);
- register_counter ("Event: Coverage classes", &coverage_classes_ctr);
- register_counter ("Event: Coverage assemblies", &coverage_assemblies_ctr);
-
- counters_init (profiler);
-
- /*
- * We must start the helper thread before the writer thread. This is
- * because the helper thread sets up the command port which is written to
- * the log header by the writer thread.
- */
- start_helper_thread (profiler);
- start_writer_thread (profiler);
- start_dumper_thread (profiler);
-}
-
-static MonoProfiler*
-create_profiler (const char *args, const char *filename, GPtrArray *filters)
-{
- MonoProfiler *prof;
- char *nf;
- int force_delete = 0;
- prof = (MonoProfiler *) g_calloc (1, sizeof (MonoProfiler));
-
- prof->args = pstrdup (args);
- prof->command_port = command_port;
- if (filename && *filename == '-') {
- force_delete = 1;
- filename++;
- g_warning ("WARNING: the output:-FILENAME option is deprecated, the profiler now always overrides the output file\n");
- }
- if (!filename) {
- if (do_report)
- filename = "|mprof-report -";
- else
- filename = "output.mlpd";
- nf = (char*)filename;
- } else {
- nf = new_filename (filename);
- if (do_report) {
- int s = strlen (nf) + 32;
- char *p = (char *) g_malloc (s);
- snprintf (p, s, "|mprof-report '--out=%s' -", nf);
- g_free (nf);
- nf = p;
- }
- }
- if (*nf == '|') {
- prof->file = popen (nf + 1, "w");
- prof->pipe_output = 1;
- } else if (*nf == '#') {
- int fd = strtol (nf + 1, NULL, 10);
- prof->file = fdopen (fd, "a");
- } else {
- if (force_delete)
- unlink (nf);
- prof->file = fopen (nf, "wb");
- }
- if (!prof->file) {
- fprintf (stderr, "Cannot create profiler output: %s\n", nf);
- exit (1);
- }
-
-#if defined (HAVE_SYS_ZLIB)
- if (use_zip)
- prof->gzfile = gzdopen (fileno (prof->file), "wb");
-#endif
-
- /*
- * If you hit this assert while increasing MAX_FRAMES, you need to increase
- * SAMPLE_BLOCK_SIZE as well.
- */
- g_assert (SAMPLE_SLOT_SIZE (MAX_FRAMES) * 2 < LOCK_FREE_ALLOC_SB_USABLE_SIZE (SAMPLE_BLOCK_SIZE));
-
- // FIXME: We should free this stuff too.
- mono_lock_free_allocator_init_size_class (&prof->sample_size_class, SAMPLE_SLOT_SIZE (num_frames), SAMPLE_BLOCK_SIZE);
- mono_lock_free_allocator_init_allocator (&prof->sample_allocator, &prof->sample_size_class, MONO_MEM_ACCOUNT_PROFILER);
-
- mono_lock_free_queue_init (&prof->sample_reuse_queue);
-
- g_assert (sizeof (WriterQueueEntry) * 2 < LOCK_FREE_ALLOC_SB_USABLE_SIZE (WRITER_ENTRY_BLOCK_SIZE));
-
- // FIXME: We should free this stuff too.
- mono_lock_free_allocator_init_size_class (&prof->writer_entry_size_class, sizeof (WriterQueueEntry), WRITER_ENTRY_BLOCK_SIZE);
- mono_lock_free_allocator_init_allocator (&prof->writer_entry_allocator, &prof->writer_entry_size_class, MONO_MEM_ACCOUNT_PROFILER);
-
- mono_lock_free_queue_init (&prof->writer_queue);
- mono_os_sem_init (&prof->writer_queue_sem, 0);
-
- mono_lock_free_queue_init (&prof->dumper_queue);
- mono_os_sem_init (&prof->dumper_queue_sem, 0);
-
- mono_os_mutex_init (&prof->method_table_mutex);
- prof->method_table = mono_conc_hashtable_new (NULL, NULL);
-
- if (do_coverage)
- coverage_init (prof);
- prof->coverage_filters = filters;
-
- prof->startup_time = current_time ();
- return prof;
-}
-
-/*
- * declaration to silence the compiler: this is the entry point that
- * mono will load from the shared library and call.
- */
-extern void
-mono_profiler_startup (const char *desc);
-
-extern void
-mono_profiler_startup_log (const char *desc);
-
-/*
- * this is the entry point that will be used when the profiler
- * is embedded inside the main executable.
- */
-void
-mono_profiler_startup_log (const char *desc)
-{
- mono_profiler_startup (desc);
-}
-
-static ProfilerConfig config;
-
-void
-mono_profiler_startup (const char *desc)
-{
- GPtrArray *filters = NULL;
- MonoProfiler *prof;
-
- proflog_parse_args (&config, desc [3] == ':' ? desc + 4 : "");
-
- //XXX maybe later cleanup to use config directly
- nocalls = !(config.effective_mask & PROFLOG_CALL_EVENTS);
- no_counters = !(config.effective_mask & PROFLOG_COUNTER_EVENTS);
- do_report = config.do_report;
- do_debug = config.do_debug;
- do_heap_shot = (config.effective_mask & PROFLOG_HEAPSHOT_FEATURE);
- hs_mode_ondemand = config.hs_mode_ondemand;
- hs_mode_ms = config.hs_mode_ms;
- hs_mode_gc = config.hs_mode_gc;
- do_mono_sample = (config.effective_mask & PROFLOG_SAMPLING_FEATURE);
- use_zip = config.use_zip;
- command_port = config.command_port;
- num_frames = config.num_frames;
- notraces = config.notraces;
- max_allocated_sample_hits = config.max_allocated_sample_hits;
- max_call_depth = config.max_call_depth;
- do_coverage = (config.effective_mask & PROFLOG_CODE_COV_FEATURE);
- debug_coverage = config.debug_coverage;
- only_coverage = config.only_coverage;
-
- if (config.cov_filter_files) {
- filters = g_ptr_array_new ();
- int i;
- for (i = 0; i < config.cov_filter_files->len; ++i) {
- const char *name = config.cov_filter_files->pdata [i];
- parse_cov_filter_file (filters, name);
- }
- }
-
- init_time ();
-
- PROF_TLS_INIT ();
-
- prof = create_profiler (desc, config.output_filename, filters);
- if (!prof) {
- PROF_TLS_FREE ();
- return;
- }
-
- mono_lls_init (&profiler_thread_list, NULL);
-
- init_thread (prof, TRUE);
-
- //This two events are required for the profiler to work
- int events = MONO_PROFILE_THREADS | MONO_PROFILE_GC;
-
- //Required callbacks
- mono_profiler_install (prof, log_shutdown);
- mono_profiler_install_runtime_initialized (runtime_initialized);
-
- mono_profiler_install_gc (gc_event, gc_resize);
- mono_profiler_install_thread (thread_start, thread_end);
-
- //It's questionable whether we actually want this to be mandatory, maybe put it behind the actual event?
- mono_profiler_install_thread_name (thread_name);
-
-
- if (config.effective_mask & PROFLOG_DOMAIN_EVENTS) {
- events |= MONO_PROFILE_APPDOMAIN_EVENTS;
- mono_profiler_install_appdomain (NULL, domain_loaded, domain_unloaded, NULL);
- mono_profiler_install_appdomain_name (domain_name);
- }
-
- if (config.effective_mask & PROFLOG_ASSEMBLY_EVENTS) {
- events |= MONO_PROFILE_ASSEMBLY_EVENTS;
- mono_profiler_install_assembly (NULL, assembly_loaded, assembly_unloaded, NULL);
- }
-
- if (config.effective_mask & PROFLOG_MODULE_EVENTS) {
- events |= MONO_PROFILE_MODULE_EVENTS;
- mono_profiler_install_module (NULL, image_loaded, image_unloaded, NULL);
- }
-
- if (config.effective_mask & PROFLOG_CLASS_EVENTS) {
- events |= MONO_PROFILE_CLASS_EVENTS;
- mono_profiler_install_class (NULL, class_loaded, class_unloaded, NULL);
- }
-
- if (config.effective_mask & PROFLOG_JIT_COMPILATION_EVENTS) {
- events |= MONO_PROFILE_JIT_COMPILATION;
- mono_profiler_install_jit_end (method_jitted);
- mono_profiler_install_code_buffer_new (code_buffer_new);
- }
-
- if (config.effective_mask & PROFLOG_EXCEPTION_EVENTS) {
- events |= MONO_PROFILE_EXCEPTIONS;
- mono_profiler_install_exception (throw_exc, method_exc_leave, clause_exc);
- }
-
- if (config.effective_mask & PROFLOG_ALLOCATION_EVENTS) {
- events |= MONO_PROFILE_ALLOCATIONS;
- mono_profiler_install_allocation (gc_alloc);
- }
-
- //PROFLOG_GC_EVENTS is mandatory
- //PROFLOG_THREAD_EVENTS is mandatory
-
- if (config.effective_mask & PROFLOG_CALL_EVENTS) {
- events |= MONO_PROFILE_ENTER_LEAVE;
- mono_profiler_install_enter_leave (method_enter, method_leave);
- }
-
- if (config.effective_mask & PROFLOG_INS_COVERAGE_EVENTS) {
- events |= MONO_PROFILE_INS_COVERAGE;
- mono_profiler_install_coverage_filter (coverage_filter);
- }
-
- //XXX should we check for PROFLOG_SAMPLING_FEATURE instead??
- if (config.effective_mask & PROFLOG_SAMPLING_EVENTS) {
- events |= MONO_PROFILE_STATISTICAL;
- mono_profiler_set_statistical_mode (config.sampling_mode, config.sample_freq);
- mono_profiler_install_statistical (mono_sample_hit);
- }
-
- if (config.effective_mask & PROFLOG_MONITOR_EVENTS) {
- events |= MONO_PROFILE_MONITOR_EVENTS;
- mono_profiler_install_monitor (monitor_event);
- }
-
- if (config.effective_mask & PROFLOG_GC_MOVES_EVENTS) {
- events |= MONO_PROFILE_GC_MOVES;
- mono_profiler_install_gc_moves (gc_moves);
- }
-
- // TODO split those in two profiler events
- if (config.effective_mask & (PROFLOG_GC_ROOT_EVENTS | PROFLOG_GC_HANDLE_EVENTS)) {
- events |= MONO_PROFILE_GC_ROOTS;
- mono_profiler_install_gc_roots (
- config.effective_mask & (PROFLOG_GC_HANDLE_EVENTS) ? gc_handle : NULL,
- (config.effective_mask & PROFLOG_GC_ROOT_EVENTS) ? gc_roots : NULL);
- }
-
- if (config.effective_mask & PROFLOG_CONTEXT_EVENTS) {
- events |= MONO_PROFILE_CONTEXT_EVENTS;
- mono_profiler_install_context (context_loaded, context_unloaded);
- }
-
- if (config.effective_mask & PROFLOG_FINALIZATION_EVENTS) {
- events |= MONO_PROFILE_GC_FINALIZATION;
- mono_profiler_install_gc_finalize (finalize_begin, finalize_object_begin, finalize_object_end, finalize_end);
- }
-
- //PROFLOG_COUNTER_EVENTS is a pseudo event controled by the no_counters global var
- //PROFLOG_GC_HANDLE_EVENTS is handled together with PROFLOG_GC_ROOT_EVENTS
-
- mono_profiler_set_events ((MonoProfileFlags)events);
-}
+++ /dev/null
-#ifndef __MONO_PROFLOG_H__
-#define __MONO_PROFLOG_H__
-
-#include <glib.h>
-#include <mono/metadata/profiler.h>
-
-#define BUF_ID 0x4D504C01
-#define LOG_HEADER_ID 0x4D505A01
-#define LOG_VERSION_MAJOR 1
-#define LOG_VERSION_MINOR 1
-#define LOG_DATA_VERSION 13
-
-/*
- * Changes in major/minor versions:
- * version 1.0: removed sysid field from header
- * added args, arch, os fields to header
- *
- * Changes in data versions:
- * version 2: added offsets in heap walk
- * version 3: added GC roots
- * version 4: added sample/statistical profiling
- * version 5: added counters sampling
- * version 6: added optional backtrace in sampling info
- * version 8: added TYPE_RUNTIME and JIT helpers/trampolines
- * version 9: added MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING
- * version 10: added TYPE_COVERAGE
- * version 11: added thread ID to TYPE_SAMPLE_HIT
- added more load/unload events
- unload for class
- unload for image
- load/unload for appdomain
- load/unload for contexts
- load/unload/name for assemblies
- removed TYPE_LOAD_ERR flag (profiler never generated it, now removed from the format itself)
- added TYPE_GC_HANDLE_{CREATED,DESTROYED}_BT
- TYPE_JIT events are no longer guaranteed to have code start/size info (can be zero)
- * version 12: added MONO_COUNTER_PROFILER
- * version 13: added MONO_GC_EVENT_{PRE_STOP_WORLD_LOCKED,POST_START_WORLD_UNLOCKED}
- added TYPE_META + TYPE_SYNC_POINT
- removed il and native offset in TYPE_SAMPLE_HIT
- methods in backtraces are now encoded as proper method pointers
- removed flags in backtrace format
- removed flags in metadata events
- changed the following fields to a single byte rather than leb128
- TYPE_GC_EVENT: event_type, generation
- TYPE_HEAP_ROOT: root_type
- TYPE_JITHELPER: type
- TYPE_SAMPLE_HIT: sample_type
- TYPE_CLAUSE: clause_type
- TYPE_SAMPLE_COUNTERS_DESC: type, unit, variance
- TYPE_SAMPLE_COUNTERS: type
- added time fields to all events that were missing one
- TYPE_HEAP_OBJECT
- TYPE_HEAP_ROOT
- TYPE_SAMPLE_USYM
- TYPE_SAMPLE_COUNTERS_DESC
- TYPE_COVERAGE_METHOD
- TYPE_COVERAGE_STATEMENT
- TYPE_COVERAGE_CLASS
- TYPE_COVERAGE_ASSEMBLY
- moved the time field in TYPE_SAMPLE_HIT to right after the event byte, now encoded as a regular time field
- changed the time field in TYPE_SAMPLE_COUNTERS to be encoded as a regular time field (in nanoseconds)
- added TYPE_GC_FINALIZE_{START,END,OBJECT_START,OBJECT_END}
- */
-
-enum {
- TYPE_ALLOC,
- TYPE_GC,
- TYPE_METADATA,
- TYPE_METHOD,
- TYPE_EXCEPTION,
- TYPE_MONITOR,
- TYPE_HEAP,
- TYPE_SAMPLE,
- TYPE_RUNTIME,
- TYPE_COVERAGE,
- TYPE_META,
- /* extended type for TYPE_HEAP */
- TYPE_HEAP_START = 0 << 4,
- TYPE_HEAP_END = 1 << 4,
- TYPE_HEAP_OBJECT = 2 << 4,
- TYPE_HEAP_ROOT = 3 << 4,
- /* extended type for TYPE_METADATA */
- TYPE_END_LOAD = 2 << 4,
- TYPE_END_UNLOAD = 4 << 4,
- /* extended type for TYPE_GC */
- TYPE_GC_EVENT = 1 << 4,
- TYPE_GC_RESIZE = 2 << 4,
- TYPE_GC_MOVE = 3 << 4,
- TYPE_GC_HANDLE_CREATED = 4 << 4,
- TYPE_GC_HANDLE_DESTROYED = 5 << 4,
- TYPE_GC_HANDLE_CREATED_BT = 6 << 4,
- TYPE_GC_HANDLE_DESTROYED_BT = 7 << 4,
- TYPE_GC_FINALIZE_START = 8 << 4,
- TYPE_GC_FINALIZE_END = 9 << 4,
- TYPE_GC_FINALIZE_OBJECT_START = 10 << 4,
- TYPE_GC_FINALIZE_OBJECT_END = 11 << 4,
- /* extended type for TYPE_METHOD */
- TYPE_LEAVE = 1 << 4,
- TYPE_ENTER = 2 << 4,
- TYPE_EXC_LEAVE = 3 << 4,
- TYPE_JIT = 4 << 4,
- /* extended type for TYPE_EXCEPTION */
- TYPE_THROW_NO_BT = 0 << 7,
- TYPE_THROW_BT = 1 << 7,
- TYPE_CLAUSE = 1 << 4,
- /* extended type for TYPE_ALLOC */
- TYPE_ALLOC_NO_BT = 0 << 4,
- TYPE_ALLOC_BT = 1 << 4,
- /* extended type for TYPE_MONITOR */
- TYPE_MONITOR_NO_BT = 0 << 7,
- TYPE_MONITOR_BT = 1 << 7,
- /* extended type for TYPE_SAMPLE */
- TYPE_SAMPLE_HIT = 0 << 4,
- TYPE_SAMPLE_USYM = 1 << 4,
- TYPE_SAMPLE_UBIN = 2 << 4,
- TYPE_SAMPLE_COUNTERS_DESC = 3 << 4,
- TYPE_SAMPLE_COUNTERS = 4 << 4,
- /* extended type for TYPE_RUNTIME */
- TYPE_JITHELPER = 1 << 4,
- /* extended type for TYPE_COVERAGE */
- TYPE_COVERAGE_ASSEMBLY = 0 << 4,
- TYPE_COVERAGE_METHOD = 1 << 4,
- TYPE_COVERAGE_STATEMENT = 2 << 4,
- TYPE_COVERAGE_CLASS = 3 << 4,
- /* extended type for TYPE_META */
- TYPE_SYNC_POINT = 0 << 4,
- TYPE_END
-};
-
-enum {
- /* metadata type byte for TYPE_METADATA */
- TYPE_CLASS = 1,
- TYPE_IMAGE = 2,
- TYPE_ASSEMBLY = 3,
- TYPE_DOMAIN = 4,
- TYPE_THREAD = 5,
- TYPE_CONTEXT = 6,
-};
-
-typedef enum {
- SYNC_POINT_PERIODIC,
- SYNC_POINT_WORLD_STOP,
- SYNC_POINT_WORLD_START
-} MonoProfilerSyncPointType;
-
-// Sampling sources
-// Unless you have compiled with --enable-perf-events, only SAMPLE_CYCLES is available
-enum {
- SAMPLE_CYCLES = 1,
- SAMPLE_INSTRUCTIONS,
- SAMPLE_CACHE_MISSES,
- SAMPLE_CACHE_REFS,
- SAMPLE_BRANCHES,
- SAMPLE_BRANCH_MISSES,
- SAMPLE_LAST
-};
-
-
-// If you alter MAX_FRAMES, you may need to alter SAMPLE_BLOCK_SIZE too.
-#define MAX_FRAMES 32
-
-//The following flags control emitting individual events
-#define PROFLOG_DOMAIN_EVENTS (1 << 0)
-#define PROFLOG_ASSEMBLY_EVENTS (1 << 1)
-#define PROFLOG_MODULE_EVENTS (1 << 2)
-#define PROFLOG_CLASS_EVENTS (1 << 3)
-#define PROFLOG_JIT_COMPILATION_EVENTS (1 << 4)
-#define PROFLOG_EXCEPTION_EVENTS (1 << 5)
-#define PROFLOG_ALLOCATION_EVENTS (1 << 6)
-#define PROFLOG_GC_EVENTS (1 << 7)
-#define PROFLOG_THREAD_EVENTS (1 << 8)
-//This generate enter/leave events
-#define PROFLOG_CALL_EVENTS (1 << 9)
-#define PROFLOG_INS_COVERAGE_EVENTS (1 << 10)
-#define PROFLOG_SAMPLING_EVENTS (1 << 11)
-#define PROFLOG_MONITOR_EVENTS (1 << 12)
-#define PROFLOG_GC_MOVES_EVENTS (1 << 13)
-
-#define PROFLOG_GC_ROOT_EVENTS (1 << 14)
-#define PROFLOG_CONTEXT_EVENTS (1 << 15)
-#define PROFLOG_FINALIZATION_EVENTS (1 << 16)
-#define PROFLOG_COUNTER_EVENTS (1 << 17)
-#define PROFLOG_GC_HANDLE_EVENTS (1 << 18)
-
-//The following flags control whole subsystems
-//Enables code coverage generation
-#define PROFLOG_CODE_COV_FEATURE (1 << 19)
-//This enables sampling to be generated
-#define PROFLOG_SAMPLING_FEATURE (1 << 20)
-//This enable heap dumping during GCs and filter GCRoots and GCHandle events outside of the dumped collections
-#define PROFLOG_HEAPSHOT_FEATURE (1 << 21)
-
-
-
-//The follow flags are the common aliases we want ppl to use
-#define PROFLOG_TYPELOADING_ALIAS (PROFLOG_DOMAIN_EVENTS | PROFLOG_ASSEMBLY_EVENTS | PROFLOG_MODULE_EVENTS | PROFLOG_CLASS_EVENTS)
-#define PROFLOG_CODECOV_ALIAS (PROFLOG_GC_EVENTS | PROFLOG_THREAD_EVENTS | PROFLOG_CALL_EVENTS | PROFLOG_INS_COVERAGE_EVENTS | PROFLOG_CODE_COV_FEATURE)
-#define PROFLOG_PERF_SAMPLING_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_THREAD_EVENTS | PROFLOG_SAMPLING_EVENTS | PROFLOG_SAMPLING_FEATURE)
-#define PROFLOG_GC_ALLOC_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_THREAD_EVENTS | PROFLOG_GC_EVENTS | PROFLOG_ALLOCATION_EVENTS)
-#define PROFLOG_HEAPSHOT_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_THREAD_EVENTS | PROFLOG_GC_EVENTS | PROFLOG_GC_ROOT_EVENTS | PROFLOG_HEAPSHOT_FEATURE)
-#define PROFLOG_LEGACY_ALIAS (PROFLOG_TYPELOADING_ALIAS | PROFLOG_GC_EVENTS | PROFLOG_THREAD_EVENTS | PROFLOG_JIT_COMPILATION_EVENTS | PROFLOG_EXCEPTION_EVENTS | PROFLOG_MONITOR_EVENTS | PROFLOG_GC_ROOT_EVENTS | PROFLOG_CONTEXT_EVENTS | PROFLOG_FINALIZATION_EVENTS | PROFLOG_COUNTER_EVENTS)
-
-
-typedef struct {
- //Events explicitly enabled
- int enable_mask;
- //Events explicitly disabled
- int disable_mask;
-
- //Actual mask the profiler should use
- int effective_mask;
-
- //Emit a report at the end of execution
- gboolean do_report;
-
- //Enable profiler internal debugging
- gboolean do_debug;
-
- //Enable code coverage specific debugging
- gboolean debug_coverage;
-
- //Where to compress the output file
- gboolean use_zip;
-
- //If true, don't generate stacktraces
- gboolean notraces;
-
- //If true, emit coverage but don't emit enter/exit events - this happens cuz they share an event
- gboolean only_coverage;
-
- //If true, heapshots are generated on demand only
- gboolean hs_mode_ondemand;
-
- //HeapShort frequency in milliseconds
- unsigned int hs_mode_ms;
-
- //HeapShort frequency in number of collections
- unsigned int hs_mode_gc;
-
- //Sample frequency in Hertz
- int sample_freq;
-
- //Maximum number of frames to collect
- int num_frames;
-
- //Max depth to record enter/leave events
- int max_call_depth;
-
- //Name of the generated mlpd file
- const char *output_filename;
-
- //Filter files used by the code coverage mode
- GPtrArray *cov_filter_files;
-
- //Port to listen for profiling commands
- int command_port;
-
- //Max size of the sample hit buffer, we'll drop frames if it's reached
- int max_allocated_sample_hits;
-
- MonoProfileSamplingMode sampling_mode;
-} ProfilerConfig;
-
-void proflog_parse_args (ProfilerConfig *config, const char *desc);
-
-#endif /* __MONO_PROFLOG_H__ */
+++ /dev/null
-/*
- * mono-codeanalyst.c: VTune profiler
- *
- * Author:
- * Virgile Bello (virgile.bello@gmail.com)
- *
- * (C) 2011 Virgile Bello
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-#include <mono/metadata/profiler.h>
-#include <mono/metadata/tokentype.h>
-#include <mono/metadata/tabledefs.h>
-#include <mono/metadata/debug-helpers.h>
-#include <mono/metadata/assembly.h>
-#include <mono/metadata/mono-debug.h>
-#include <mono/metadata/debug-internals.h>
-#include <string.h>
-#include <glib.h>
-
-#define bool char
-
-#include <jitprofiling.h>
-
-static const char*
-code_buffer_desc (MonoProfilerCodeBufferType type)
-{
- switch (type) {
- case MONO_PROFILER_CODE_BUFFER_METHOD:
- return "code_buffer_method";
- case MONO_PROFILER_CODE_BUFFER_METHOD_TRAMPOLINE:
- return "code_buffer_method_trampoline";
- case MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE:
- return "code_buffer_unbox_trampoline";
- case MONO_PROFILER_CODE_BUFFER_IMT_TRAMPOLINE:
- return "code_buffer_imt_trampoline";
- case MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE:
- return "code_buffer_generics_trampoline";
- case MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE:
- return "code_buffer_specific_trampoline";
- case MONO_PROFILER_CODE_BUFFER_HELPER:
- return "code_buffer_misc_helper";
- case MONO_PROFILER_CODE_BUFFER_MONITOR:
- return "code_buffer_monitor";
- case MONO_PROFILER_CODE_BUFFER_DELEGATE_INVOKE:
- return "code_buffer_delegate_invoke";
- case MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING:
- return "code_buffer_exception_handling";
- default:
- return "unspecified";
- }
-}
-
-/* called at the end of the program */
-static void
-codeanalyst_shutdown (MonoProfiler *prof)
-{
- iJIT_NotifyEvent(iJVM_EVENT_TYPE_SHUTDOWN, NULL);
-}
-
-static void
-method_jit_result (MonoProfiler *prof, MonoMethod *method, MonoJitInfo* jinfo, int result) {
- if (result == MONO_PROFILE_OK) {
- int i;
- MonoDebugSourceLocation *sourceLoc;
- MonoDebugMethodJitInfo *dmji;
- MonoClass *klass = mono_method_get_class (method);
- char *signature = mono_signature_get_desc (mono_method_signature (method), TRUE);
- char *name = g_strdup_printf ("%s(%s)", mono_method_get_name (method), signature);
- char *classname = g_strdup_printf ("%s%s%s", mono_class_get_namespace (klass), mono_class_get_namespace (klass)[0] != 0 ? "::" : "", mono_class_get_name (klass));
- gpointer code_start = mono_jit_info_get_code_start (jinfo);
- int code_size = mono_jit_info_get_code_size (jinfo);
-
- iJIT_Method_Load vtuneMethod;
- memset(&vtuneMethod, 0, sizeof(vtuneMethod));
- vtuneMethod.method_id = iJIT_GetNewMethodID();
- vtuneMethod.method_name = name;
- vtuneMethod.method_load_address = code_start;
- vtuneMethod.method_size = code_size;
- vtuneMethod.class_file_name = classname;
-
- dmji = mono_debug_find_method (method, mono_domain_get());
-
- if (dmji != NULL)
- {
- vtuneMethod.line_number_size = dmji->num_line_numbers;
- vtuneMethod.line_number_table = (vtuneMethod.line_number_size != 0) ?
- (LineNumberInfo*)malloc(sizeof(LineNumberInfo) * vtuneMethod.line_number_size) : NULL;
-
- for (i = 0; i < dmji->num_line_numbers; ++i)
- {
- sourceLoc = mono_debug_lookup_source_location (method, dmji->line_numbers[i].native_offset, mono_domain_get());
- if (sourceLoc == NULL)
- {
- g_free (vtuneMethod.line_number_table);
- vtuneMethod.line_number_table = NULL;
- vtuneMethod.line_number_size = 0;
- break;
- }
- if (i == 0)
- vtuneMethod.source_file_name = strdup(sourceLoc->source_file);
- vtuneMethod.line_number_table[i].Offset = dmji->line_numbers[i].native_offset;
- vtuneMethod.line_number_table[i].LineNumber = sourceLoc->row;
- mono_debug_free_source_location (sourceLoc);
- }
- mono_debug_free_method_jit_info (dmji);
- }
-
- iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED, &vtuneMethod);
-
- if (vtuneMethod.source_file_name != NULL)
- g_free (vtuneMethod.source_file_name);
- if (vtuneMethod.line_number_table != NULL)
- g_free (vtuneMethod.line_number_table);
-
- g_free (signature);
- g_free (name);
- g_free (classname);
- }
-}
-
-static void
-code_buffer_new (MonoProfiler *prof, void *buffer, int size, MonoProfilerCodeBufferType type, void *data)
-{
- char *name;
- iJIT_Method_Load vtuneMethod;
-
- if (type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE)
- name = g_strdup_printf ("code_buffer_specific_trampoline_%s", (char*) data);
- else
- name = (char*) code_buffer_desc (type);
-
- memset (&vtuneMethod, 0, sizeof (vtuneMethod));
- vtuneMethod.method_id = iJIT_GetNewMethodID ();
- vtuneMethod.method_name = name;
- vtuneMethod.method_load_address = buffer;
- vtuneMethod.method_size = size;
-
- iJIT_NotifyEvent (iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED, &vtuneMethod);
-
- if (type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE) {
- g_free (name);
- }
-}
-
-/* the entry point */
-void
-mono_profiler_startup (const char *desc)
-{
- iJIT_IsProfilingActiveFlags flags = iJIT_IsProfilingActive();
- if (flags == iJIT_SAMPLING_ON)
- {
- mono_profiler_install (NULL, codeanalyst_shutdown);
- mono_profiler_install_jit_end (method_jit_result);
- mono_profiler_install_code_buffer_new (code_buffer_new);
- mono_profiler_set_events (MONO_PROFILE_JIT_COMPILATION);
- }
-}
* - column: The column on the line
*/
#include <config.h>
-#include "mono-profiler-log.h"
+#include "log.h"
#include <string.h>
#include <assert.h>
#include <stdio.h>
--- /dev/null
+/*
+ * mono-codeanalyst.c: VTune profiler
+ *
+ * Author:
+ * Virgile Bello (virgile.bello@gmail.com)
+ *
+ * (C) 2011 Virgile Bello
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <mono/metadata/profiler.h>
+#include <mono/metadata/tokentype.h>
+#include <mono/metadata/tabledefs.h>
+#include <mono/metadata/debug-helpers.h>
+#include <mono/metadata/assembly.h>
+#include <mono/metadata/mono-debug.h>
+#include <mono/metadata/debug-internals.h>
+#include <string.h>
+#include <glib.h>
+
+#define bool char
+
+#include <jitprofiling.h>
+
+static const char*
+code_buffer_desc (MonoProfilerCodeBufferType type)
+{
+ switch (type) {
+ case MONO_PROFILER_CODE_BUFFER_METHOD:
+ return "code_buffer_method";
+ case MONO_PROFILER_CODE_BUFFER_METHOD_TRAMPOLINE:
+ return "code_buffer_method_trampoline";
+ case MONO_PROFILER_CODE_BUFFER_UNBOX_TRAMPOLINE:
+ return "code_buffer_unbox_trampoline";
+ case MONO_PROFILER_CODE_BUFFER_IMT_TRAMPOLINE:
+ return "code_buffer_imt_trampoline";
+ case MONO_PROFILER_CODE_BUFFER_GENERICS_TRAMPOLINE:
+ return "code_buffer_generics_trampoline";
+ case MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE:
+ return "code_buffer_specific_trampoline";
+ case MONO_PROFILER_CODE_BUFFER_HELPER:
+ return "code_buffer_misc_helper";
+ case MONO_PROFILER_CODE_BUFFER_MONITOR:
+ return "code_buffer_monitor";
+ case MONO_PROFILER_CODE_BUFFER_DELEGATE_INVOKE:
+ return "code_buffer_delegate_invoke";
+ case MONO_PROFILER_CODE_BUFFER_EXCEPTION_HANDLING:
+ return "code_buffer_exception_handling";
+ default:
+ return "unspecified";
+ }
+}
+
+/* called at the end of the program */
+static void
+codeanalyst_shutdown (MonoProfiler *prof)
+{
+ iJIT_NotifyEvent(iJVM_EVENT_TYPE_SHUTDOWN, NULL);
+}
+
+static void
+method_jit_result (MonoProfiler *prof, MonoMethod *method, MonoJitInfo* jinfo, int result) {
+ if (result == MONO_PROFILE_OK) {
+ int i;
+ MonoDebugSourceLocation *sourceLoc;
+ MonoDebugMethodJitInfo *dmji;
+ MonoClass *klass = mono_method_get_class (method);
+ char *signature = mono_signature_get_desc (mono_method_signature (method), TRUE);
+ char *name = g_strdup_printf ("%s(%s)", mono_method_get_name (method), signature);
+ char *classname = g_strdup_printf ("%s%s%s", mono_class_get_namespace (klass), mono_class_get_namespace (klass)[0] != 0 ? "::" : "", mono_class_get_name (klass));
+ gpointer code_start = mono_jit_info_get_code_start (jinfo);
+ int code_size = mono_jit_info_get_code_size (jinfo);
+
+ iJIT_Method_Load vtuneMethod;
+ memset(&vtuneMethod, 0, sizeof(vtuneMethod));
+ vtuneMethod.method_id = iJIT_GetNewMethodID();
+ vtuneMethod.method_name = name;
+ vtuneMethod.method_load_address = code_start;
+ vtuneMethod.method_size = code_size;
+ vtuneMethod.class_file_name = classname;
+
+ dmji = mono_debug_find_method (method, mono_domain_get());
+
+ if (dmji != NULL)
+ {
+ vtuneMethod.line_number_size = dmji->num_line_numbers;
+ vtuneMethod.line_number_table = (vtuneMethod.line_number_size != 0) ?
+ (LineNumberInfo*)malloc(sizeof(LineNumberInfo) * vtuneMethod.line_number_size) : NULL;
+
+ for (i = 0; i < dmji->num_line_numbers; ++i)
+ {
+ sourceLoc = mono_debug_lookup_source_location (method, dmji->line_numbers[i].native_offset, mono_domain_get());
+ if (sourceLoc == NULL)
+ {
+ g_free (vtuneMethod.line_number_table);
+ vtuneMethod.line_number_table = NULL;
+ vtuneMethod.line_number_size = 0;
+ break;
+ }
+ if (i == 0)
+ vtuneMethod.source_file_name = strdup(sourceLoc->source_file);
+ vtuneMethod.line_number_table[i].Offset = dmji->line_numbers[i].native_offset;
+ vtuneMethod.line_number_table[i].LineNumber = sourceLoc->row;
+ mono_debug_free_source_location (sourceLoc);
+ }
+ mono_debug_free_method_jit_info (dmji);
+ }
+
+ iJIT_NotifyEvent(iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED, &vtuneMethod);
+
+ if (vtuneMethod.source_file_name != NULL)
+ g_free (vtuneMethod.source_file_name);
+ if (vtuneMethod.line_number_table != NULL)
+ g_free (vtuneMethod.line_number_table);
+
+ g_free (signature);
+ g_free (name);
+ g_free (classname);
+ }
+}
+
+static void
+code_buffer_new (MonoProfiler *prof, void *buffer, int size, MonoProfilerCodeBufferType type, void *data)
+{
+ char *name;
+ iJIT_Method_Load vtuneMethod;
+
+ if (type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE)
+ name = g_strdup_printf ("code_buffer_specific_trampoline_%s", (char*) data);
+ else
+ name = (char*) code_buffer_desc (type);
+
+ memset (&vtuneMethod, 0, sizeof (vtuneMethod));
+ vtuneMethod.method_id = iJIT_GetNewMethodID ();
+ vtuneMethod.method_name = name;
+ vtuneMethod.method_load_address = buffer;
+ vtuneMethod.method_size = size;
+
+ iJIT_NotifyEvent (iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED, &vtuneMethod);
+
+ if (type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE) {
+ g_free (name);
+ }
+}
+
+/* the entry point */
+void
+mono_profiler_startup (const char *desc)
+{
+ iJIT_IsProfilingActiveFlags flags = iJIT_IsProfilingActive();
+ if (flags == iJIT_SAMPLING_ON)
+ {
+ mono_profiler_install (NULL, codeanalyst_shutdown);
+ mono_profiler_install_jit_end (method_jit_result);
+ mono_profiler_install_code_buffer_new (code_buffer_new);
+ mono_profiler_set_events (MONO_PROFILE_JIT_COMPILATION);
+ }
+}
projects / mono.git / commitdiff