+/*
+ * coverage.c: mono coverage profiler
+ *
+ * Authors:
+ * Paolo Molaro (lupus@ximian.com)
+ * Alex Rønne Petersen (alexrp@xamarin.com)
+ * Ludovic Henry (ludovic@xamarin.com)
+ *
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
+ */
+
+/*
+ * The Coverage XML output schema
+ * <coverage>
+ * <assembly/>
+ * <class/>
+ * <method>
+ * <statement/>
+ * </method>
+ * </coverage>
+ *
+ * Elements:
+ * <coverage> - The root element of the documentation. It can contain any number of
+ * <assembly>, <class> or <method> elements.
+ * Attributes:
+ * - version: The version number for the file format - (eg: "0.3")
+ * <assembly> - Contains data about assemblies. Has no child elements
+ * Attributes:
+ * - name: The name of the assembly - (eg: "System.Xml")
+ * - guid: The GUID of the assembly
+ * - filename: The filename of the assembly
+ * - method-count: The number of methods in the assembly
+ * - full: The number of fully covered methods
+ * - partial: The number of partially covered methods
+ * <class> - Contains data about classes. Has no child elements
+ * Attributes:
+ * - name: The name of the class
+ * - method-count: The number of methods in the class
+ * - full: The number of fully covered methods
+ * - partial: The number of partially covered methods
+ * <method> - Contains data about methods. Can contain any number of <statement> elements
+ * Attributes:
+ * - assembly: The name of the parent assembly
+ * - class: The name of the parent class
+ * - name: The name of the method, with all it's parameters
+ * - filename: The name of the source file containing this method
+ * - token
+ * <statement> - Contains data about IL statements. Has no child elements
+ * Attributes:
+ * - offset: The offset of the statement in the IL code after the previous
+ * statement's offset
+ * - counter: 1 if the line was covered, 0 if it was not
+ * - line: The line number in the parent method's file
+ * - column: The column on the line
+ */
+
+#include <config.h>
+#include <glib.h>
+
+#include <stdio.h>
+
+#ifdef HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+#include <fcntl.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+#if defined (HAVE_SYS_ZLIB)
+#include <zlib.h>
+#endif
+
+#include <mono/metadata/assembly.h>
+#include <mono/metadata/debug-helpers.h>
+#include <mono/metadata/profiler.h>
+#include <mono/metadata/tabledefs.h>
+#include <mono/metadata/metadata-internals.h>
+
+#include <mono/utils/atomic.h>
+#include <mono/utils/hazard-pointer.h>
+#include <mono/utils/lock-free-queue.h>
+#include <mono/utils/mono-conc-hashtable.h>
+#include <mono/utils/mono-os-mutex.h>
+#include <mono/utils/mono-logger-internals.h>
+#include <mono/utils/mono-counters.h>
+
+// Statistics for profiler events.
+static gint32 coverage_methods_ctr,
+ coverage_statements_ctr,
+ coverage_classes_ctr,
+ coverage_assemblies_ctr;
+
+struct _MonoProfiler {
+ MonoProfilerHandle handle;
+
+ FILE* file;
+
+ char *args;
+
+ mono_mutex_t mutex;
+ GPtrArray *data;
+
+ GPtrArray *filters;
+ MonoConcurrentHashTable *filtered_classes;
+ MonoConcurrentHashTable *suppressed_assemblies;
+
+ MonoConcurrentHashTable *methods;
+ MonoConcurrentHashTable *assemblies;
+ MonoConcurrentHashTable *classes;
+
+ MonoConcurrentHashTable *image_to_methods;
+
+ guint32 previous_offset;
+};
+
+typedef struct {
+ //Where to compress the output file
+ gboolean use_zip;
+
+ //Name of the generated xml file
+ const char *output_filename;
+
+ //Filter files used by the code coverage mode
+ GPtrArray *cov_filter_files;
+} ProfilerConfig;
+
+static ProfilerConfig coverage_config;
+static struct _MonoProfiler coverage_profiler;
+
+/* This is a very basic escape function that escapes < > and &
+ Ideally we'd use g_markup_escape_string but that function isn't
+ available in Mono's eglib. This was written without looking at the
+ source of that function in glib. */
+static char *
+escape_string_for_xml (const char *string)
+{
+ GString *string_builder = g_string_new (NULL);
+ const char *start, *p;
+
+ start = p = string;
+ while (*p) {
+ while (*p && *p != '&' && *p != '<' && *p != '>')
+ p++;
+
+ g_string_append_len (string_builder, start, p - start);
+
+ if (*p == '\0')
+ break;
+
+ switch (*p) {
+ case '<':
+ g_string_append (string_builder, "<");
+ break;
+
+ case '>':
+ g_string_append (string_builder, ">");
+ break;
+
+ case '&':
+ g_string_append (string_builder, "&");
+ break;
+
+ default:
+ break;
+ }
+
+ p++;
+ start = p;
+ }
+
+ return g_string_free (string_builder, FALSE);
+}
+
+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 MonoProfilerCoverageData *entry)
+{
+ g_assert (prof == &coverage_profiler);
+
+ int offset = entry->il_offset - coverage_profiler.previous_offset;
+ CoverageEntry *e = g_new (CoverageEntry, 1);
+
+ coverage_profiler.previous_offset = entry->il_offset;
+
+ e->offset = offset;
+ e->counter = entry->counter;
+ e->filename = g_strdup(entry->file_name ? entry->file_name : "");
+ e->line = entry->line;
+ e->column = entry->column;
+
+ g_ptr_array_add (coverage_profiler.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 void
+dump_method (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoMethod *method = (MonoMethod *)value;
+ MonoClass *klass;
+ MonoImage *image;
+ char *class_name, *escaped_image_name, *escaped_class_name, *escaped_method_name, *escaped_method_signature, *escaped_method_filename;
+ const char *image_name, *method_name, *method_signature, *method_filename;
+ guint i;
+
+ coverage_profiler.previous_offset = 0;
+ coverage_profiler.data = g_ptr_array_new ();
+
+ mono_profiler_get_coverage_data (coverage_profiler.handle, method, obtain_coverage_for_method);
+
+ klass = mono_method_get_class (method);
+ image = mono_class_get_image (klass);
+ image_name = mono_image_get_name (image);
+
+ method_signature = 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_profiler.data->len != 0) {
+ CoverageEntry *entry = (CoverageEntry *)coverage_profiler.data->pdata[0];
+ method_filename = entry->filename ? entry->filename : "";
+ } else
+ method_filename = "";
+
+ image_name = image_name ? image_name : "";
+ method_signature = method_signature ? method_signature : "";
+ method_name = method_name ? method_name : "";
+
+ escaped_image_name = escape_string_for_xml (image_name);
+ escaped_class_name = escape_string_for_xml (class_name);
+ escaped_method_name = escape_string_for_xml (method_name);
+ escaped_method_signature = escape_string_for_xml (method_signature);
+ escaped_method_filename = escape_string_for_xml (method_filename);
+
+ fprintf (coverage_profiler.file, "\t<method assembly=\"%s\" class=\"%s\" name=\"%s (%s)\" filename=\"%s\" token=\"%d\">\n",
+ escaped_image_name, escaped_class_name, escaped_method_name, escaped_method_signature, escaped_method_filename, mono_method_get_token (method));
+
+ g_free (escaped_image_name);
+ g_free (escaped_class_name);
+ g_free (escaped_method_name);
+ g_free (escaped_method_signature);
+ g_free (escaped_method_filename);
+
+ for (i = 0; i < coverage_profiler.data->len; i++) {
+ CoverageEntry *entry = (CoverageEntry *)coverage_profiler.data->pdata[i];
+
+ fprintf (coverage_profiler.file, "\t\t<statement offset=\"%d\" counter=\"%d\" line=\"%d\" column=\"%d\"/>\n",
+ entry->offset, entry->counter, entry->line, entry->column);
+ }
+
+ fprintf (coverage_profiler.file, "\t</method>\n");
+
+ g_free (class_name);
+
+ g_ptr_array_foreach (coverage_profiler.data, free_coverage_entry, NULL);
+ g_ptr_array_free (coverage_profiler.data, TRUE);
+}
+
+/* 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
+dump_classes_for_image (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoClass *klass = (MonoClass *)key;
+ MonoLockFreeQueue *class_methods = (MonoLockFreeQueue *)value;
+ MonoImage *image;
+ char *class_name, *escaped_class_name;
+ const char *image_name;
+ int number_of_methods, partially_covered;
+ guint fully_covered;
+
+ image = mono_class_get_image (klass);
+ image_name = mono_image_get_name (image);
+
+ if (!image_name || strcmp (image_name, mono_image_get_name (((MonoImage*) userdata))) != 0)
+ return;
+
+ class_name = mono_type_get_name (mono_class_get_type (klass));
+
+ number_of_methods = mono_class_num_methods (klass);
+ fully_covered = count_queue (class_methods);
+ /* We don't handle partial covered yet */
+ partially_covered = 0;
+
+ escaped_class_name = escape_string_for_xml (class_name);
+
+ fprintf (coverage_profiler.file, "\t<class name=\"%s\" method-count=\"%d\" full=\"%d\" partial=\"%d\"/>\n",
+ escaped_class_name, number_of_methods, fully_covered, partially_covered);
+
+ g_free (escaped_class_name);
+
+ 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 (coverage_profiler.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
+dump_assembly (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoAssembly *assembly = (MonoAssembly *)value;
+ MonoImage *image = mono_assembly_get_image (assembly);
+ const char *image_name, *image_guid, *image_filename;
+ char *escaped_image_name, *escaped_image_filename;
+ int number_of_methods = 0, partially_covered = 0;
+ guint fully_covered = 0;
+
+ image_name = mono_image_get_name (image);
+ image_guid = mono_image_get_guid (image);
+ image_filename = mono_image_get_filename (image);
+
+ image_name = image_name ? image_name : "";
+ image_guid = image_guid ? image_guid : "";
+ image_filename = image_filename ? image_filename : "";
+
+ get_coverage_for_image (image, &number_of_methods, &fully_covered, &partially_covered);
+
+ escaped_image_name = escape_string_for_xml (image_name);
+ escaped_image_filename = escape_string_for_xml (image_filename);
+
+ fprintf (coverage_profiler.file, "\t<assembly name=\"%s\" guid=\"%s\" filename=\"%s\" method-count=\"%d\" full=\"%d\" partial=\"%d\"/>\n",
+ escaped_image_name, image_guid, escaped_image_filename, number_of_methods, fully_covered, partially_covered);
+
+ g_free (escaped_image_name);
+ g_free (escaped_image_filename);
+
+ mono_conc_hashtable_foreach (coverage_profiler.classes, dump_classes_for_image, image);
+}
+
+static void
+dump_coverage (void)
+{
+ fprintf (coverage_profiler.file, "<?xml version=\"1.0\"?>\n");
+ fprintf (coverage_profiler.file, "<coverage version=\"0.3\">\n");
+
+ mono_os_mutex_lock (&coverage_profiler.mutex);
+ mono_conc_hashtable_foreach (coverage_profiler.assemblies, dump_assembly, NULL);
+ mono_conc_hashtable_foreach (coverage_profiler.methods, dump_method, NULL);
+ mono_os_mutex_unlock (&coverage_profiler.mutex);
+
+ fprintf (coverage_profiler.file, "</coverage>\n");
+}
+
+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 (prof == &coverage_profiler);
+
+ flags = mono_method_get_flags (method, &iflags);
+ if ((iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
+ (flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
+ return FALSE;
+
+ // Don't need to do anything else if we're already tracking this method
+ if (mono_conc_hashtable_lookup (coverage_profiler.methods, method))
+ 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 (coverage_profiler.suppressed_assemblies, (gpointer) mono_image_get_name (image)) != NULL)
+ return FALSE;
+
+ if (coverage_profiler.filters) {
+ /* Check already filtered classes first */
+ if (mono_conc_hashtable_lookup (coverage_profiler.filtered_classes, klass))
+ return FALSE;
+
+ classname = mono_type_get_name (mono_class_get_type (klass));
+
+ fqn = g_strdup_printf ("[%s]%s", mono_image_get_name (image), classname);
+
+ // Check positive filters first
+ has_positive = FALSE;
+ found = FALSE;
+ for (guint i = 0; i < coverage_profiler.filters->len; ++i) {
+ char *filter = (char *)g_ptr_array_index (coverage_profiler.filters, i);
+
+ if (filter [0] == '+') {
+ filter = &filter [1];
+
+ if (strstr (fqn, filter) != NULL)
+ found = TRUE;
+
+ has_positive = TRUE;
+ }
+ }
+
+ if (has_positive && !found) {
+ mono_os_mutex_lock (&coverage_profiler.mutex);
+ mono_conc_hashtable_insert (coverage_profiler.filtered_classes, klass, klass);
+ mono_os_mutex_unlock (&coverage_profiler.mutex);
+ g_free (fqn);
+ g_free (classname);
+
+ return FALSE;
+ }
+
+ for (guint i = 0; i < coverage_profiler.filters->len; ++i) {
+ // FIXME: Is substring search sufficient?
+ char *filter = (char *)g_ptr_array_index (coverage_profiler.filters, i);
+ if (filter [0] == '+')
+ continue;
+
+ // Skip '-'
+ filter = &filter [1];
+
+ if (strstr (fqn, filter) != NULL) {
+ mono_os_mutex_lock (&coverage_profiler.mutex);
+ mono_conc_hashtable_insert (coverage_profiler.filtered_classes, klass, klass);
+ mono_os_mutex_unlock (&coverage_profiler.mutex);
+ g_free (fqn);
+ g_free (classname);
+
+ return FALSE;
+ }
+ }
+
+ g_free (fqn);
+ g_free (classname);
+ }
+
+ 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_profiler.mutex);
+ mono_conc_hashtable_insert (coverage_profiler.methods, method, method);
+ mono_conc_hashtable_insert (coverage_profiler.assemblies, assembly, assembly);
+ mono_os_mutex_unlock (&coverage_profiler.mutex);
+
+ image_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (coverage_profiler.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_profiler.mutex);
+ mono_conc_hashtable_insert (coverage_profiler.image_to_methods, image, image_methods);
+ mono_os_mutex_unlock (&coverage_profiler.mutex);
+ }
+
+ node = create_method_node (method);
+ mono_lock_free_queue_enqueue (image_methods, node);
+
+ class_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (coverage_profiler.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_profiler.mutex);
+ mono_conc_hashtable_insert (coverage_profiler.classes, klass, class_methods);
+ mono_os_mutex_unlock (&coverage_profiler.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 (const gchar *filename)
+{
+ char *buffer;
+ ssize_t bytes_read;
+ long filesize;
+ int res, offset = 0;
+ FILE *stream;
+
+ stream = fopen (filename, "r");
+ if (stream == NULL)
+ return NULL;
+
+ res = fseek (stream, 0, SEEK_END);
+ if (res < 0) {
+ fclose (stream);
+ return NULL;
+ }
+
+ filesize = ftell (stream);
+ if (filesize < 0) {
+ fclose (stream);
+ return NULL;
+ }
+
+ res = fseek (stream, 0, SEEK_SET);
+ if (res < 0) {
+ fclose (stream);
+ return NULL;
+ }
+
+ if (filesize > MAX_FILE_SIZE) {
+ fclose (stream);
+ 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';
+
+ fclose (stream);
+ 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;
+
+ coverage_profiler.suppressed_assemblies = mono_conc_hashtable_new (g_str_hash, g_str_equal);
+
+ /* Don't need to free content as it is referred to by the lines stored in @filters */
+ content = get_file_content (SUPPRESSION_DIR "/mono-profiler-coverage.suppression");
+ if (content == NULL)
+ content = get_file_content (SUPPRESSION_DIR "/mono-profiler-log.suppression");
+ if (content == NULL)
+ return;
+
+ 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 (coverage_profiler.suppressed_assemblies, line, line);
+ }
+}
+
+static void
+parse_cov_filter_file (GPtrArray *filters, const char *file)
+{
+ char *content;
+ char *line;
+
+ /* Don't need to free content as it is referred to by the lines stored in @filters */
+ content = get_file_content (file);
+ if (content == NULL) {
+ mono_profiler_printf_err ("Could not open coverage filter file '%s'.", file);
+ return;
+ }
+
+ while ((line = get_next_line (content, &content)))
+ g_ptr_array_add (filters, g_strchug (g_strchomp (line)));
+}
+
+static void
+unref_coverage_assemblies (gpointer key, gpointer value, gpointer userdata)
+{
+ MonoAssembly *assembly = (MonoAssembly *)value;
+ mono_assembly_close (assembly);
+}
+
+static void
+log_shutdown (MonoProfiler *prof)
+{
+ g_assert (prof == &coverage_profiler);
+
+ dump_coverage ();
+
+ mono_os_mutex_lock (&coverage_profiler.mutex);
+ mono_conc_hashtable_foreach (coverage_profiler.assemblies, unref_coverage_assemblies, NULL);
+ mono_os_mutex_unlock (&coverage_profiler.mutex);
+
+ mono_conc_hashtable_destroy (coverage_profiler.methods);
+ mono_conc_hashtable_destroy (coverage_profiler.assemblies);
+ mono_conc_hashtable_destroy (coverage_profiler.classes);
+ mono_conc_hashtable_destroy (coverage_profiler.filtered_classes);
+
+ mono_conc_hashtable_destroy (coverage_profiler.image_to_methods);
+ mono_conc_hashtable_destroy (coverage_profiler.suppressed_assemblies);
+ mono_os_mutex_destroy (&coverage_profiler.mutex);
+
+ if (*coverage_config.output_filename == '|') {
+ pclose (coverage_profiler.file);
+ } else if (*coverage_config.output_filename == '#') {
+ // do nothing
+ } else {
+ fclose (coverage_profiler.file);
+ }
+
+ g_free (coverage_profiler.args);
+}
+
+static void
+runtime_initialized (MonoProfiler *profiler)
+{
+ mono_counters_register ("Event: Coverage methods", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_methods_ctr);
+ mono_counters_register ("Event: Coverage statements", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_statements_ctr);
+ mono_counters_register ("Event: Coverage classes", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_classes_ctr);
+ mono_counters_register ("Event: Coverage assemblies", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_assemblies_ctr);
+}
+
+static void usage (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)
+{
+ const char *val;
+
+ if (match_option (arg, "help", NULL)) {
+ usage ();
+ // } else if (match_option (arg, "zip", NULL)) {
+ // coverage_config.use_zip = TRUE;
+ } else if (match_option (arg, "output", &val)) {
+ coverage_config.output_filename = g_strdup (val);
+ // } else if (match_option (arg, "covfilter", &val)) {
+ // g_error ("not supported");
+ } else if (match_option (arg, "covfilter-file", &val)) {
+ if (coverage_config.cov_filter_files == NULL)
+ coverage_config.cov_filter_files = g_ptr_array_new ();
+ g_ptr_array_add (coverage_config.cov_filter_files, g_strdup (val));
+ } else {
+ mono_profiler_printf_err ("Could not parse argument: %s", arg);
+ }
+}
+
+static void
+parse_args (const char *desc)
+{
+ const char *p;
+ gboolean in_quotes = FALSE;
+ char quote_char = '\0';
+ char *buffer = malloc (strlen (desc));
+ int buffer_pos = 0;
+
+ for (p = desc; *p; p++){
+ switch (*p){
+ case ',':
+ if (!in_quotes) {
+ if (buffer_pos != 0){
+ buffer [buffer_pos] = 0;
+ parse_arg (buffer);
+ 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);
+ }
+
+ g_free (buffer);
+}
+
+static void
+usage (void)
+{
+ mono_profiler_printf ("Mono coverage profiler");
+ mono_profiler_printf ("Usage: mono --profile=coverage[:OPTION1[,OPTION2...]] program.exe\n");
+ mono_profiler_printf ("Options:");
+ mono_profiler_printf ("\thelp show this usage info");
+
+ // mono_profiler_printf ("\tcovfilter=ASSEMBLY add ASSEMBLY to the code coverage filters");
+ // mono_profiler_printf ("\t prefix a + to include the assembly or a - to exclude it");
+ // mono_profiler_printf ("\t e.g. covfilter=-mscorlib");
+ mono_profiler_printf ("\tcovfilter-file=FILE use FILE to generate the list of assemblies to be filtered");
+ mono_profiler_printf ("\toutput=FILENAME write the data to file FILENAME (the file is always overwritten)");
+ mono_profiler_printf ("\toutput=+FILENAME write the data to file FILENAME.pid (the file is always overwritten)");
+ mono_profiler_printf ("\toutput=|PROGRAM write the data to the stdin of PROGRAM");
+ mono_profiler_printf ("\toutput=|PROGRAM write the data to the stdin of PROGRAM");
+ // mono_profiler_printf ("\tzip compress the output data");
+}
+
+MONO_API void
+mono_profiler_init_coverage (const char *desc);
+
+void
+mono_profiler_init_coverage (const char *desc)
+{
+ GPtrArray *filters = NULL;
+
+ parse_args (desc [strlen("coverage")] == ':' ? desc + strlen ("coverage") + 1 : "");
+
+ if (coverage_config.cov_filter_files) {
+ filters = g_ptr_array_new ();
+ int i;
+ for (i = 0; i < coverage_config.cov_filter_files->len; ++i) {
+ const char *name = coverage_config.cov_filter_files->pdata [i];
+ parse_cov_filter_file (filters, name);
+ }
+ }
+
+ coverage_profiler.args = g_strdup (desc);
+
+ //If coverage_config.output_filename begin with +, append the pid at the end
+ if (!coverage_config.output_filename)
+ coverage_config.output_filename = "coverage.xml";
+ else if (*coverage_config.output_filename == '+')
+ coverage_config.output_filename = g_strdup_printf ("%s.%d", coverage_config.output_filename + 1, getpid ());
+
+ if (*coverage_config.output_filename == '|')
+ coverage_profiler.file = popen (coverage_config.output_filename + 1, "w");
+ else if (*coverage_config.output_filename == '#')
+ coverage_profiler.file = fdopen (strtol (coverage_config.output_filename + 1, NULL, 10), "a");
+ else
+ coverage_profiler.file = fopen (coverage_config.output_filename, "w");
+
+ if (!coverage_profiler.file) {
+ mono_profiler_printf_err ("Could not create coverage profiler output file '%s'.", coverage_config.output_filename);
+ exit (1);
+ }
+
+ mono_os_mutex_init (&coverage_profiler.mutex);
+ coverage_profiler.methods = mono_conc_hashtable_new (NULL, NULL);
+ coverage_profiler.assemblies = mono_conc_hashtable_new (NULL, NULL);
+ coverage_profiler.classes = mono_conc_hashtable_new (NULL, NULL);
+ coverage_profiler.filtered_classes = mono_conc_hashtable_new (NULL, NULL);
+ coverage_profiler.image_to_methods = mono_conc_hashtable_new (NULL, NULL);
+ init_suppressed_assemblies ();
+
+ coverage_profiler.filters = filters;
+
+ MonoProfilerHandle handle = coverage_profiler.handle = mono_profiler_create (&coverage_profiler);
+
+ /*
+ * Required callbacks. These are either necessary for the profiler itself
+ * to function, or provide metadata that's needed if other events (e.g.
+ * allocations, exceptions) are dynamically enabled/disabled.
+ */
+
+ mono_profiler_set_runtime_shutdown_end_callback (handle, log_shutdown);
+ mono_profiler_set_runtime_initialized_callback (handle, runtime_initialized);
+
+ mono_profiler_enable_coverage ();
+ mono_profiler_set_coverage_filter_callback (handle, coverage_filter);
+}
projects / mono.git / commitdiff