2 * proflog.c: mono log profiler
5 * Paolo Molaro (lupus@ximian.com)
6 * Alex Rønne Petersen (alexrp@xamarin.com)
8 * Copyright 2010 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin Inc (http://www.xamarin.com)
13 #include "../mini/jit.h"
14 #include <mono/metadata/profiler.h>
15 #include <mono/metadata/threads.h>
16 #include <mono/metadata/mono-gc.h>
17 #include <mono/metadata/debug-helpers.h>
18 #include <mono/metadata/mono-perfcounters.h>
19 #include <mono/metadata/appdomain.h>
20 #include <mono/metadata/assembly.h>
21 #include <mono/metadata/tokentype.h>
22 #include <mono/metadata/tabledefs.h>
23 #include <mono/utils/atomic.h>
24 #include <mono/utils/mono-membar.h>
25 #include <mono/utils/mono-counters.h>
26 #include <mono/utils/mono-mutex.h>
27 #include <mono/utils/mono-conc-hashtable.h>
28 #include <mono/utils/lock-free-queue.h>
38 #if defined(HOST_WIN32) || defined(DISABLE_SOCKETS)
39 #define DISABLE_HELPER_THREAD 1
48 #ifdef HAVE_EXECINFO_H
55 #ifndef DISABLE_HELPER_THREAD
56 #include <sys/types.h>
57 #include <sys/socket.h>
58 #include <netinet/in.h>
59 #include <sys/select.h>
68 #ifdef HAVE_SYS_STAT_H
75 #if defined (HAVE_SYS_ZLIB)
79 #if defined(__linux__)
82 #include <sys/syscall.h>
83 #include "perf_event.h"
85 #ifdef ENABLE_PERF_EVENTS
86 #define USE_PERF_EVENTS 1
88 static int read_perf_mmap (MonoProfiler* prof, int cpu);
93 #define BUFFER_SIZE (4096 * 16)
94 static int nocalls = 0;
95 static int notraces = 0;
96 static int use_zip = 0;
97 static int do_report = 0;
98 static int do_heap_shot = 0;
99 static int max_call_depth = 100;
100 static volatile int runtime_inited = 0;
101 static int need_helper_thread = 0;
102 static int command_port = 0;
103 static int heapshot_requested = 0;
104 static int sample_type = 0;
105 static int sample_freq = 0;
106 static int do_mono_sample = 0;
107 static int in_shutdown = 0;
108 static int do_debug = 0;
109 static int do_counters = 0;
110 static int do_coverage = 0;
111 static gboolean debug_coverage = FALSE;
112 static MonoProfileSamplingMode sampling_mode = MONO_PROFILER_STAT_MODE_PROCESS;
114 typedef struct _LogBuffer LogBuffer;
120 * The file is composed by a header followed by 0 or more buffers.
121 * Each buffer contains events that happened on a thread: for a given thread
122 * buffers that appear later in the file are guaranteed to contain events
123 * that happened later in time. Buffers from separate threads could be interleaved,
125 * Buffers are not required to be aligned.
128 * [id: 4 bytes] constant value: LOG_HEADER_ID
129 * [major: 1 byte] [minor: 1 byte] major and minor version of the log profiler
130 * [format: 1 byte] version of the data format for the rest of the file
131 * [ptrsize: 1 byte] size in bytes of a pointer in the profiled program
132 * [startup time: 8 bytes] time in milliseconds since the unix epoch when the program started
133 * [timer overhead: 4 bytes] approximate overhead in nanoseconds of the timer
134 * [flags: 4 bytes] file format flags, should be 0 for now
135 * [pid: 4 bytes] pid of the profiled process
136 * [port: 2 bytes] tcp port for server if != 0
137 * [sysid: 2 bytes] operating system and architecture identifier
139 * The multiple byte integers are in little-endian format.
142 * [buffer header] [event]*
143 * Buffers have a fixed-size header followed by 0 or more bytes of event data.
144 * Timing information and other values in the event data are usually stored
145 * as uleb128 or sleb128 integers. To save space, as noted for each item below,
146 * some data is represented as a difference between the actual value and
147 * either the last value of the same type (like for timing information) or
148 * as the difference from a value stored in a buffer header.
150 * For timing information the data is stored as uleb128, since timing
151 * increases in a monotonic way in each thread: the value is the number of
152 * nanoseconds to add to the last seen timing data in a buffer. The first value
153 * in a buffer will be calculated from the time_base field in the buffer head.
155 * Object or heap sizes are stored as uleb128.
156 * Pointer differences are stored as sleb128, instead.
158 * If an unexpected value is found, the rest of the buffer should be ignored,
159 * as generally the later values need the former to be interpreted correctly.
161 * buffer header format:
162 * [bufid: 4 bytes] constant value: BUF_ID
163 * [len: 4 bytes] size of the data following the buffer header
164 * [time_base: 8 bytes] time base in nanoseconds since an unspecified epoch
165 * [ptr_base: 8 bytes] base value for pointers
166 * [obj_base: 8 bytes] base value for object addresses
167 * [thread id: 8 bytes] system-specific thread ID (pthread_t for example)
168 * [method_base: 8 bytes] base value for MonoMethod pointers
171 * [extended info: upper 4 bits] [type: lower 4 bits] [data]*
172 * The data that follows depends on type and the extended info.
173 * Type is one of the enum values in proflog.h: TYPE_ALLOC, TYPE_GC,
174 * TYPE_METADATA, TYPE_METHOD, TYPE_EXCEPTION, TYPE_MONITOR, TYPE_HEAP.
175 * The extended info bits are interpreted based on type, see
176 * each individual event description below.
177 * strings are represented as a 0-terminated utf8 sequence.
180 * [flags: uleb128] must be 0
181 * [num: uleb128] number of frames following
182 * [frame: sleb128]* num MonoMethod pointers as differences from ptr_base
186 * exinfo: flags: TYPE_ALLOC_BT
187 * [time diff: uleb128] nanoseconds since last timing
188 * [ptr: sleb128] class as a byte difference from ptr_base
189 * [obj: sleb128] object address as a byte difference from obj_base
190 * [size: uleb128] size of the object in the heap
191 * If the TYPE_ALLOC_BT flag is set, a backtrace follows.
195 * exinfo: one of TYPE_GC_EVENT, TYPE_GC_RESIZE, TYPE_GC_MOVE, TYPE_GC_HANDLE_CREATED,
196 * TYPE_GC_HANDLE_DESTROYED
197 * [time diff: uleb128] nanoseconds since last timing
198 * if exinfo == TYPE_GC_RESIZE
199 * [heap_size: uleb128] new heap size
200 * if exinfo == TYPE_GC_EVENT
201 * [event type: uleb128] GC event (MONO_GC_EVENT_* from profiler.h)
202 * [generation: uleb128] GC generation event refers to
203 * if exinfo == TYPE_GC_MOVE
204 * [num_objects: uleb128] number of object moves that follow
205 * [objaddr: sleb128]+ num_objects object pointer differences from obj_base
206 * num is always an even number: the even items are the old
207 * addresses, the odd numbers are the respective new object addresses
208 * if exinfo == TYPE_GC_HANDLE_CREATED
209 * [handle_type: uleb128] GC handle type (System.Runtime.InteropServices.GCHandleType)
210 * upper bits reserved as flags
211 * [handle: uleb128] GC handle value
212 * [objaddr: sleb128] object pointer differences from obj_base
213 * if exinfo == TYPE_GC_HANDLE_DESTROYED
214 * [handle_type: uleb128] GC handle type (System.Runtime.InteropServices.GCHandleType)
215 * upper bits reserved as flags
216 * [handle: uleb128] GC handle value
218 * type metadata format:
219 * type: TYPE_METADATA
220 * exinfo: one of: TYPE_END_LOAD, TYPE_END_UNLOAD (optional for TYPE_THREAD and TYPE_DOMAIN)
221 * [time diff: uleb128] nanoseconds since last timing
222 * [mtype: byte] metadata type, one of: TYPE_CLASS, TYPE_IMAGE, TYPE_ASSEMBLY, TYPE_DOMAIN,
223 * TYPE_THREAD, TYPE_CONTEXT
224 * [pointer: sleb128] pointer of the metadata type depending on mtype
225 * if mtype == TYPE_CLASS
226 * [image: sleb128] MonoImage* as a pointer difference from ptr_base
227 * [flags: uleb128] must be 0
228 * [name: string] full class name
229 * if mtype == TYPE_IMAGE
230 * [flags: uleb128] must be 0
231 * [name: string] image file name
232 * if mtype == TYPE_ASSEMBLY
233 * [flags: uleb128] must be 0
234 * [name: string] assembly name
235 * if mtype == TYPE_DOMAIN
236 * [flags: uleb128] must be 0
237 * if mtype == TYPE_DOMAIN && exinfo == 0
238 * [name: string] domain friendly name
239 * if mtype == TYPE_CONTEXT
240 * [domain: sleb128] domain id as pointer
241 * if mtype == TYPE_THREAD && (format_version < 11 || (format_version > 10 && exinfo == 0))
242 * [name: string] thread name
244 * type method format:
246 * exinfo: one of: TYPE_LEAVE, TYPE_ENTER, TYPE_EXC_LEAVE, TYPE_JIT
247 * [time diff: uleb128] nanoseconds since last timing
248 * [method: sleb128] MonoMethod* as a pointer difference from the last such
249 * pointer or the buffer method_base
250 * if exinfo == TYPE_JIT
251 * [code address: sleb128] pointer to the native code as a diff from ptr_base
252 * [code size: uleb128] size of the generated code
253 * [name: string] full method name
255 * type runtime format:
257 * exinfo: one of: TYPE_JITHELPER
258 * [time diff: uleb128] nanoseconds since last timing
259 * if exinfo == TYPE_JITHELPER
260 * [type: uleb128] MonoProfilerCodeBufferType enum value
261 * [buffer address: sleb128] pointer to the native code as a diff from ptr_base
262 * [buffer size: uleb128] size of the generated code
263 * if type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE
264 * [name: string] buffer description name
266 * type monitor format:
268 * exinfo: TYPE_MONITOR_BT flag and one of: MONO_PROFILER_MONITOR_(CONTENTION|FAIL|DONE)
269 * [time diff: uleb128] nanoseconds since last timing
270 * [object: sleb128] the lock object as a difference from obj_base
271 * if exinfo.low3bits == MONO_PROFILER_MONITOR_CONTENTION
272 * If the TYPE_MONITOR_BT flag is set, a backtrace follows.
276 * exinfo: one of TYPE_HEAP_START, TYPE_HEAP_END, TYPE_HEAP_OBJECT, TYPE_HEAP_ROOT
277 * if exinfo == TYPE_HEAP_START
278 * [time diff: uleb128] nanoseconds since last timing
279 * if exinfo == TYPE_HEAP_END
280 * [time diff: uleb128] nanoseconds since last timing
281 * if exinfo == TYPE_HEAP_OBJECT
282 * [object: sleb128] the object as a difference from obj_base
283 * [class: sleb128] the object MonoClass* as a difference from ptr_base
284 * [size: uleb128] size of the object on the heap
285 * [num_refs: uleb128] number of object references
286 * if (format version > 1) each referenced objref is preceded by a
287 * uleb128 encoded offset: the first offset is from the object address
288 * and each next offset is relative to the previous one
289 * [objrefs: sleb128]+ object referenced as a difference from obj_base
290 * The same object can appear multiple times, but only the first time
291 * with size != 0: in the other cases this data will only be used to
292 * provide additional referenced objects.
293 * if exinfo == TYPE_HEAP_ROOT
294 * [num_roots: uleb128] number of root references
295 * [num_gc: uleb128] number of major gcs
296 * [object: sleb128] the object as a difference from obj_base
297 * [root_type: uleb128] the root_type: MonoProfileGCRootType (profiler.h)
298 * [extra_info: uleb128] the extra_info value
299 * object, root_type and extra_info are repeated num_roots times
303 * exinfo: one of TYPE_SAMPLE_HIT, TYPE_SAMPLE_USYM, TYPE_SAMPLE_UBIN, TYPE_SAMPLE_COUNTERS_DESC, TYPE_SAMPLE_COUNTERS
304 * if exinfo == TYPE_SAMPLE_HIT
305 * [sample_type: uleb128] type of sample (SAMPLE_*)
306 * [timestamp: uleb128] nanoseconds since startup (note: different from other timestamps!)
307 * if (format_version > 10)
308 * [thread: sleb128] thread id as difference from ptr_base
309 * [count: uleb128] number of following instruction addresses
310 * [ip: sleb128]* instruction pointer as difference from ptr_base
311 * if (format_version > 5)
312 * [mbt_count: uleb128] number of managed backtrace info triplets (method + IL offset + native offset)
313 * [method: sleb128]* MonoMethod* as a pointer difference from the last such
314 * pointer or the buffer method_base (the first such method can be also indentified by ip, but this is not neccessarily true)
315 * [il_offset: sleb128]* IL offset inside method where the hit occurred
316 * [native_offset: sleb128]* native offset inside method where the hit occurred
317 * if exinfo == TYPE_SAMPLE_USYM
318 * [address: sleb128] symbol address as a difference from ptr_base
319 * [size: uleb128] symbol size (may be 0 if unknown)
320 * [name: string] symbol name
321 * if exinfo == TYPE_SAMPLE_UBIN
322 * [time diff: uleb128] nanoseconds since last timing
323 * [address: sleb128] address where binary has been loaded
324 * [offset: uleb128] file offset of mapping (the same file can be mapped multiple times)
325 * [size: uleb128] memory size
326 * [name: string] binary name
327 * if exinfo == TYPE_SAMPLE_COUNTERS_DESC
328 * [len: uleb128] number of counters
330 * [section: uleb128] section of counter
331 * if section == MONO_COUNTER_PERFCOUNTERS:
332 * [section_name: string] section name of counter
333 * [name: string] name of counter
334 * [type: uleb128] type of counter
335 * [unit: uleb128] unit of counter
336 * [variance: uleb128] variance of counter
337 * [index: uleb128] unique index of counter
338 * if exinfo == TYPE_SAMPLE_COUNTERS
339 * [timestamp: uleb128] sampling timestamp
341 * [index: uleb128] unique index of counter
344 * [type: uleb128] type of counter value
347 * [0: uleb128] 0 -> value is null
349 * [1: uleb128] 1 -> value is not null
350 * [value: string] counter value
352 * [value: uleb128/sleb128/double] counter value, can be sleb128, uleb128 or double (determined by using type)
354 * type coverage format
355 * type: TYPE_COVERAGE
356 * exinfo: one of TYPE_COVERAGE_METHOD, TYPE_COVERAGE_STATEMENT, TYPE_COVERAGE_ASSEMBLY, TYPE_COVERAGE_CLASS
357 * if exinfo == TYPE_COVERAGE_METHOD
358 * [assembly: string] name of assembly
359 * [class: string] name of the class
360 * [name: string] name of the method
361 * [signature: string] the signature of the method
362 * [filename: string] the file path of the file that contains this method
363 * [token: uleb128] the method token
364 * [method_id: uleb128] an ID for this data to associate with the buffers of TYPE_COVERAGE_STATEMENTS
365 * [len: uleb128] the number of TYPE_COVERAGE_BUFFERS associated with this method
366 * if exinfo == TYPE_COVERAGE_STATEMENTS
367 * [method_id: uleb128] an the TYPE_COVERAGE_METHOD buffer to associate this with
368 * [offset: uleb128] the il offset relative to the previous offset
369 * [counter: uleb128] the counter for this instruction
370 * [line: uleb128] the line of filename containing this instruction
371 * [column: uleb128] the column containing this instruction
372 * if exinfo == TYPE_COVERAGE_ASSEMBLY
373 * [name: string] assembly name
374 * [guid: string] assembly GUID
375 * [filename: string] assembly filename
376 * [number_of_methods: uleb128] the number of methods in this assembly
377 * [fully_covered: uleb128] the number of fully covered methods
378 * [partially_covered: uleb128] the number of partially covered methods
379 * currently partially_covered will always be 0, and fully_covered is the
380 * number of methods that are fully and partially covered.
381 * if exinfo == TYPE_COVERAGE_CLASS
382 * [name: string] assembly name
383 * [class: string] class name
384 * [number_of_methods: uleb128] the number of methods in this class
385 * [fully_covered: uleb128] the number of fully covered methods
386 * [partially_covered: uleb128] the number of partially covered methods
387 * currently partially_covered will always be 0, and fully_covered is the
388 * number of methods that are fully and partially covered.
392 * Format oddities that we ought to fix:
394 * - Methods written in emit_bt () should be based on the buffer's base
395 * method instead of the base pointer.
396 * - The TYPE_SAMPLE_HIT event contains (currently) pointless data like
397 * always-one unmanaged frame count and always-zero IL offsets.
399 * These are mostly small things and are not worth a format change by
400 * themselves. They should be done when some other major change has to
401 * be done to the format.
409 uintptr_t method_base;
410 uintptr_t last_method;
413 unsigned char* data_end;
418 unsigned char buf [1];
422 ign_res (int G_GNUC_UNUSED unused, ...)
426 #define ENTER_LOG(lb,str) if ((lb)->locked) {ign_res (write(2, str, strlen(str))); ign_res (write(2, "\n", 1));return;} else {(lb)->locked++;}
427 #define EXIT_LOG(lb) (lb)->locked--;
429 typedef struct _StatBuffer StatBuffer;
438 typedef struct _BinaryObject BinaryObject;
440 struct _BinaryObject {
446 struct _MonoProfiler {
447 StatBuffer *stat_buffers;
449 #if defined (HAVE_SYS_ZLIB)
452 uint64_t startup_time;
454 int last_gc_gen_started;
459 pthread_t helper_thread;
460 pthread_t writer_thread;
462 volatile gint32 run_writer_thread;
463 MonoLockFreeQueue writer_queue;
464 MonoConcurrentHashTable *method_table;
465 mono_mutex_t method_table_mutex;
466 BinaryObject *binary_objects;
467 GPtrArray *coverage_filters;
468 GPtrArray *sorted_sample_events;
471 typedef struct _WriterQueueEntry WriterQueueEntry;
472 struct _WriterQueueEntry {
473 MonoLockFreeQueueNode node;
478 typedef struct _MethodInfo MethodInfo;
489 #define TLS_SET(x,y) (TlsSetValue (x, y))
490 #define TLS_GET(t,x) ((t *) TlsGetValue (x))
491 #define TLS_INIT(x) (x = TlsAlloc ())
492 static int tlsbuffer;
493 static int tlsmethodlist;
495 #define TLS_SET(x,y) (x = y)
496 #define TLS_GET(t,x) (x)
498 static __thread LogBuffer* tlsbuffer = NULL;
499 static __thread GPtrArray* tlsmethodlist = NULL;
501 #define TLS_SET(x,y) (pthread_setspecific (x, y))
502 #define TLS_GET(t,x) ((t *) pthread_getspecific (x))
503 #define TLS_INIT(x) (pthread_key_create (&x, NULL))
504 static pthread_key_t tlsbuffer;
505 static pthread_key_t tlsmethodlist;
508 static void safe_send (MonoProfiler *profiler, LogBuffer *logbuffer);
511 pstrdup (const char *s)
513 int len = strlen (s) + 1;
514 char *p = malloc (len);
520 create_stat_buffer (void)
522 StatBuffer* buf = alloc_buffer (BUFFER_SIZE);
523 buf->size = BUFFER_SIZE;
524 buf->data_end = (uintptr_t*)((unsigned char*)buf + buf->size);
525 buf->data = buf->buf;
532 LogBuffer* buf = alloc_buffer (BUFFER_SIZE);
533 buf->size = BUFFER_SIZE;
534 buf->time_base = current_time ();
535 buf->last_time = buf->time_base;
536 buf->data_end = (unsigned char*)buf + buf->size;
537 buf->data = buf->buf;
544 if (!TLS_GET (LogBuffer, tlsbuffer)) {
545 LogBuffer *logbuffer = create_buffer ();
546 TLS_SET (tlsbuffer, logbuffer);
547 logbuffer->thread_id = thread_id ();
549 if (!TLS_GET (GPtrArray, tlsmethodlist)) {
550 GPtrArray *methodlist = g_ptr_array_new ();
551 TLS_SET (tlsmethodlist, methodlist);
554 //printf ("thread %p at time %llu\n", (void*)logbuffer->thread_id, logbuffer->time_base);
558 ensure_logbuf_inner (LogBuffer *old, int bytes)
560 if (old && old->data + bytes + 100 < old->data_end)
563 LogBuffer *new = create_buffer ();
564 new->thread_id = thread_id ();
568 new->call_depth = old->call_depth;
574 ensure_logbuf (int bytes)
576 LogBuffer *old = TLS_GET (LogBuffer, tlsbuffer);
577 LogBuffer *new = ensure_logbuf_inner (old, bytes);
580 return old; // Still enough space.
582 TLS_SET (tlsbuffer, new);
589 emit_byte (LogBuffer *logbuffer, int value)
591 logbuffer->data [0] = value;
593 assert (logbuffer->data <= logbuffer->data_end);
597 emit_value (LogBuffer *logbuffer, int value)
599 encode_uleb128 (value, logbuffer->data, &logbuffer->data);
600 assert (logbuffer->data <= logbuffer->data_end);
604 emit_time (LogBuffer *logbuffer, uint64_t value)
606 uint64_t tdiff = value - logbuffer->last_time;
607 if (value < logbuffer->last_time)
608 printf ("time went backwards\n");
609 //if (tdiff > 1000000)
610 // printf ("large time offset: %llu\n", tdiff);
611 encode_uleb128 (tdiff, logbuffer->data, &logbuffer->data);
612 /*if (tdiff != decode_uleb128 (p, &p))
613 printf ("incorrect encoding: %llu\n", tdiff);*/
614 logbuffer->last_time = value;
615 assert (logbuffer->data <= logbuffer->data_end);
619 emit_svalue (LogBuffer *logbuffer, int64_t value)
621 encode_sleb128 (value, logbuffer->data, &logbuffer->data);
622 assert (logbuffer->data <= logbuffer->data_end);
626 emit_uvalue (LogBuffer *logbuffer, uint64_t value)
628 encode_uleb128 (value, logbuffer->data, &logbuffer->data);
629 assert (logbuffer->data <= logbuffer->data_end);
633 emit_ptr (LogBuffer *logbuffer, void *ptr)
635 if (!logbuffer->ptr_base)
636 logbuffer->ptr_base = (uintptr_t)ptr;
637 emit_svalue (logbuffer, (intptr_t)ptr - logbuffer->ptr_base);
638 assert (logbuffer->data <= logbuffer->data_end);
642 emit_method_inner (LogBuffer *logbuffer, void *method)
644 if (!logbuffer->method_base) {
645 logbuffer->method_base = (intptr_t)method;
646 logbuffer->last_method = (intptr_t)method;
648 encode_sleb128 ((intptr_t)((char*)method - (char*)logbuffer->last_method), logbuffer->data, &logbuffer->data);
649 logbuffer->last_method = (intptr_t)method;
650 assert (logbuffer->data <= logbuffer->data_end);
659 find_method (MonoDomain *domain, void *user_data)
661 MethodSearch *search = user_data;
666 MonoJitInfo *ji = mono_get_jit_info_from_method (domain, search->method);
668 // It could be AOT'd, so we need to get it from the AOT runtime's cache.
670 void *ip = mono_aot_get_method (domain, search->method);
672 // Avoid a slow path in mono_jit_info_table_find ().
674 ji = mono_jit_info_table_find (domain, ip);
682 register_method_local (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *ji)
684 if (!mono_conc_hashtable_lookup (prof->method_table, method)) {
686 MethodSearch search = { method, NULL };
688 mono_domain_foreach (find_method, &search);
695 MethodInfo *info = malloc (sizeof (MethodInfo));
697 info->method = method;
700 g_ptr_array_add (TLS_GET (GPtrArray, tlsmethodlist), info);
705 emit_method (MonoProfiler *prof, LogBuffer *logbuffer, MonoMethod *method)
707 register_method_local (prof, method, NULL);
708 emit_method_inner (logbuffer, method);
712 emit_method_as_ptr (MonoProfiler *prof, LogBuffer *logbuffer, MonoMethod *method)
714 register_method_local (prof, method, NULL);
715 emit_ptr (logbuffer, method);
719 emit_obj (LogBuffer *logbuffer, void *ptr)
721 if (!logbuffer->obj_base)
722 logbuffer->obj_base = (uintptr_t)ptr >> 3;
723 emit_svalue (logbuffer, ((uintptr_t)ptr >> 3) - logbuffer->obj_base);
724 assert (logbuffer->data <= logbuffer->data_end);
728 emit_string (LogBuffer *logbuffer, const char *str, size_t size)
732 for (; i < size; i++) {
735 emit_byte (logbuffer, str [i]);
738 emit_byte (logbuffer, '\0');
742 emit_double (LogBuffer *logbuffer, double value)
745 unsigned char buffer[8];
746 memcpy (buffer, &value, 8);
747 #if G_BYTE_ORDER == G_BIG_ENDIAN
748 for (i = 7; i >= 0; i--)
750 for (i = 0; i < 8; i++)
752 emit_byte (logbuffer, buffer[i]);
756 write_int16 (char *buf, int32_t value)
759 for (i = 0; i < 2; ++i) {
767 write_int32 (char *buf, int32_t value)
770 for (i = 0; i < 4; ++i) {
778 write_int64 (char *buf, int64_t value)
781 for (i = 0; i < 8; ++i) {
789 dump_header (MonoProfiler *profiler)
793 p = write_int32 (p, LOG_HEADER_ID);
794 *p++ = LOG_VERSION_MAJOR;
795 *p++ = LOG_VERSION_MINOR;
796 *p++ = LOG_DATA_VERSION;
797 *p++ = sizeof (void*);
798 p = write_int64 (p, ((uint64_t)time (NULL)) * 1000); /* startup time */
799 p = write_int32 (p, get_timer_overhead ()); /* timer overhead */
800 p = write_int32 (p, 0); /* flags */
801 p = write_int32 (p, process_id ()); /* pid */
802 p = write_int16 (p, profiler->command_port); /* port */
803 p = write_int16 (p, 0); /* opsystem */
804 #if defined (HAVE_SYS_ZLIB)
805 if (profiler->gzfile) {
806 gzwrite (profiler->gzfile, hbuf, p - hbuf);
808 fwrite (hbuf, p - hbuf, 1, profiler->file);
811 fwrite (hbuf, p - hbuf, 1, profiler->file);
812 fflush (profiler->file);
817 send_buffer (MonoProfiler *prof, GPtrArray *methods, LogBuffer *buffer)
819 WriterQueueEntry *entry = calloc (1, sizeof (WriterQueueEntry));
820 mono_lock_free_queue_node_init (&entry->node, FALSE);
821 entry->methods = methods;
822 entry->buffer = buffer;
823 mono_lock_free_queue_enqueue (&prof->writer_queue, &entry->node);
827 dump_buffer (MonoProfiler *profiler, LogBuffer *buf)
832 dump_buffer (profiler, buf->next);
833 p = write_int32 (p, BUF_ID);
834 p = write_int32 (p, buf->data - buf->buf);
835 p = write_int64 (p, buf->time_base);
836 p = write_int64 (p, buf->ptr_base);
837 p = write_int64 (p, buf->obj_base);
838 p = write_int64 (p, buf->thread_id);
839 p = write_int64 (p, buf->method_base);
840 #if defined (HAVE_SYS_ZLIB)
841 if (profiler->gzfile) {
842 gzwrite (profiler->gzfile, hbuf, p - hbuf);
843 gzwrite (profiler->gzfile, buf->buf, buf->data - buf->buf);
846 fwrite (hbuf, p - hbuf, 1, profiler->file);
847 fwrite (buf->buf, buf->data - buf->buf, 1, profiler->file);
848 fflush (profiler->file);
849 #if defined (HAVE_SYS_ZLIB)
852 free_buffer (buf, buf->size);
856 process_requests (MonoProfiler *profiler)
858 if (heapshot_requested)
859 mono_gc_collect (mono_gc_max_generation ());
862 static void counters_init (MonoProfiler *profiler);
863 static void counters_sample (MonoProfiler *profiler, uint64_t timestamp);
866 * Can be called only at safe callback locations.
869 safe_send (MonoProfiler *profiler, LogBuffer *logbuffer)
871 /* We need the runtime initialized so that we have threads and hazard
872 * pointers available. Otherwise, the lock free queue will not work and
873 * there won't be a thread to process the data.
875 * While the runtime isn't initialized, we just accumulate data in the
876 * thread local buffer list.
878 if (!InterlockedRead (&runtime_inited))
881 int cd = logbuffer->call_depth;
883 send_buffer (profiler, TLS_GET (GPtrArray, tlsmethodlist), TLS_GET (LogBuffer, tlsbuffer));
885 TLS_SET (tlsbuffer, NULL);
886 TLS_SET (tlsmethodlist, NULL);
890 TLS_GET (LogBuffer, tlsbuffer)->call_depth = cd;
894 gc_reference (MonoObject *obj, MonoClass *klass, uintptr_t size, uintptr_t num, MonoObject **refs, uintptr_t *offsets, void *data)
897 uintptr_t last_offset = 0;
898 //const char *name = mono_class_get_name (klass);
899 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10 + num * (10 + 10));
900 emit_byte (logbuffer, TYPE_HEAP_OBJECT | TYPE_HEAP);
901 emit_obj (logbuffer, obj);
902 emit_ptr (logbuffer, klass);
903 /* account for object alignment in the heap */
906 emit_value (logbuffer, size);
907 emit_value (logbuffer, num);
908 for (i = 0; i < num; ++i) {
909 emit_value (logbuffer, offsets [i] - last_offset);
910 last_offset = offsets [i];
911 emit_obj (logbuffer, refs [i]);
914 // printf ("obj: %p, klass: %s, refs: %d, size: %d\n", obj, name, (int)num, (int)size);
918 static unsigned int hs_mode_ms = 0;
919 static unsigned int hs_mode_gc = 0;
920 static unsigned int hs_mode_ondemand = 0;
921 static unsigned int gc_count = 0;
922 static uint64_t last_hs_time = 0;
925 heap_walk (MonoProfiler *profiler)
929 LogBuffer *logbuffer;
932 logbuffer = ensure_logbuf (1 + 10);
933 now = current_time ();
934 if (hs_mode_ms && (now - last_hs_time)/1000000 >= hs_mode_ms)
936 else if (hs_mode_gc && (gc_count % hs_mode_gc) == 0)
938 else if (hs_mode_ondemand)
939 do_walk = heapshot_requested;
940 else if (!hs_mode_ms && !hs_mode_gc && profiler->last_gc_gen_started == mono_gc_max_generation ())
945 heapshot_requested = 0;
946 emit_byte (logbuffer, TYPE_HEAP_START | TYPE_HEAP);
947 emit_time (logbuffer, now);
948 mono_gc_walk_heap (0, gc_reference, NULL);
949 logbuffer = ensure_logbuf (1 + 10);
950 now = current_time ();
951 emit_byte (logbuffer, TYPE_HEAP_END | TYPE_HEAP);
952 emit_time (logbuffer, now);
957 gc_event (MonoProfiler *profiler, MonoGCEvent ev, int generation) {
959 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10 + 10);
960 now = current_time ();
961 ENTER_LOG (logbuffer, "gcevent");
962 emit_byte (logbuffer, TYPE_GC_EVENT | TYPE_GC);
963 emit_time (logbuffer, now);
964 emit_value (logbuffer, ev);
965 emit_value (logbuffer, generation);
966 /* to deal with nested gen1 after gen0 started */
967 if (ev == MONO_GC_EVENT_START) {
968 profiler->last_gc_gen_started = generation;
969 if (generation == mono_gc_max_generation ())
972 if (ev == MONO_GC_EVENT_PRE_START_WORLD)
973 heap_walk (profiler);
974 EXIT_LOG (logbuffer);
975 if (ev == MONO_GC_EVENT_POST_START_WORLD)
976 safe_send (profiler, logbuffer);
977 //printf ("gc event %d for generation %d\n", ev, generation);
981 gc_resize (MonoProfiler *profiler, int64_t new_size) {
983 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10);
984 now = current_time ();
985 ENTER_LOG (logbuffer, "gcresize");
986 emit_byte (logbuffer, TYPE_GC_RESIZE | TYPE_GC);
987 emit_time (logbuffer, now);
988 emit_value (logbuffer, new_size);
989 //printf ("gc resized to %lld\n", new_size);
990 EXIT_LOG (logbuffer);
993 #define MAX_FRAMES 32
996 MonoMethod* methods [MAX_FRAMES];
997 int32_t il_offsets [MAX_FRAMES];
998 int32_t native_offsets [MAX_FRAMES];
1000 static int num_frames = MAX_FRAMES;
1003 walk_stack (MonoMethod *method, int32_t native_offset, int32_t il_offset, mono_bool managed, void* data)
1005 FrameData *frame = data;
1006 if (method && frame->count < num_frames) {
1007 frame->il_offsets [frame->count] = il_offset;
1008 frame->native_offsets [frame->count] = native_offset;
1009 frame->methods [frame->count++] = method;
1010 //printf ("In %d %s at %d (native: %d)\n", frame->count, mono_method_get_name (method), il_offset, native_offset);
1012 return frame->count == num_frames;
1016 * a note about stack walks: they can cause more profiler events to fire,
1017 * so we need to make sure they don't happen after we started emitting an
1018 * event, hence the collect_bt/emit_bt split.
1021 collect_bt (FrameData *data)
1024 mono_stack_walk_no_il (walk_stack, data);
1028 emit_bt (MonoProfiler *prof, LogBuffer *logbuffer, FrameData *data)
1030 /* FIXME: this is actually tons of data and we should
1031 * just output it the first time and use an id the next
1033 if (data->count > num_frames)
1034 printf ("bad num frames: %d\n", data->count);
1035 emit_value (logbuffer, 0); /* flags */
1036 emit_value (logbuffer, data->count);
1037 //if (*p != data.count) {
1038 // printf ("bad num frames enc at %d: %d -> %d\n", count, data.count, *p); printf ("frames end: %p->%p\n", p, logbuffer->data); exit(0);}
1039 while (data->count) {
1040 emit_method_as_ptr (prof, logbuffer, data->methods [--data->count]);
1045 gc_alloc (MonoProfiler *prof, MonoObject *obj, MonoClass *klass)
1049 int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces)? TYPE_ALLOC_BT: 0;
1051 LogBuffer *logbuffer;
1052 len = mono_object_get_size (obj);
1053 /* account for object alignment in the heap */
1058 logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10 + MAX_FRAMES * (10 + 10 + 10));
1059 now = current_time ();
1060 ENTER_LOG (logbuffer, "gcalloc");
1061 emit_byte (logbuffer, do_bt | TYPE_ALLOC);
1062 emit_time (logbuffer, now);
1063 emit_ptr (logbuffer, klass);
1064 emit_obj (logbuffer, obj);
1065 emit_value (logbuffer, len);
1067 emit_bt (prof, logbuffer, &data);
1068 EXIT_LOG (logbuffer);
1069 if (logbuffer->next)
1070 safe_send (prof, logbuffer);
1071 process_requests (prof);
1072 //printf ("gc alloc %s at %p\n", mono_class_get_name (klass), obj);
1076 gc_moves (MonoProfiler *prof, void **objects, int num)
1080 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10 + num * 10);
1081 now = current_time ();
1082 ENTER_LOG (logbuffer, "gcmove");
1083 emit_byte (logbuffer, TYPE_GC_MOVE | TYPE_GC);
1084 emit_time (logbuffer, now);
1085 emit_value (logbuffer, num);
1086 for (i = 0; i < num; ++i)
1087 emit_obj (logbuffer, objects [i]);
1088 //printf ("gc moved %d objects\n", num/2);
1089 EXIT_LOG (logbuffer);
1093 gc_roots (MonoProfiler *prof, int num, void **objects, int *root_types, uintptr_t *extra_info)
1096 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10 + num * (10 + 10 + 10));
1097 ENTER_LOG (logbuffer, "gcroots");
1098 emit_byte (logbuffer, TYPE_HEAP_ROOT | TYPE_HEAP);
1099 emit_value (logbuffer, num);
1100 emit_value (logbuffer, mono_gc_collection_count (mono_gc_max_generation ()));
1101 for (i = 0; i < num; ++i) {
1102 emit_obj (logbuffer, objects [i]);
1103 emit_value (logbuffer, root_types [i]);
1104 emit_value (logbuffer, extra_info [i]);
1106 EXIT_LOG (logbuffer);
1110 gc_handle (MonoProfiler *prof, int op, int type, uintptr_t handle, MonoObject *obj)
1113 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10);
1114 now = current_time ();
1115 ENTER_LOG (logbuffer, "gchandle");
1116 if (op == MONO_PROFILER_GC_HANDLE_CREATED)
1117 emit_byte (logbuffer, TYPE_GC_HANDLE_CREATED | TYPE_GC);
1118 else if (op == MONO_PROFILER_GC_HANDLE_DESTROYED)
1119 emit_byte (logbuffer, TYPE_GC_HANDLE_DESTROYED | TYPE_GC);
1122 emit_time (logbuffer, now);
1123 emit_value (logbuffer, type);
1124 emit_value (logbuffer, handle);
1125 if (op == MONO_PROFILER_GC_HANDLE_CREATED)
1126 emit_obj (logbuffer, obj);
1127 EXIT_LOG (logbuffer);
1128 process_requests (prof);
1132 push_nesting (char *p, MonoClass *klass)
1137 nesting = mono_class_get_nesting_type (klass);
1139 p = push_nesting (p, nesting);
1143 name = mono_class_get_name (klass);
1144 nspace = mono_class_get_namespace (klass);
1147 p += strlen (nspace);
1157 type_name (MonoClass *klass)
1161 push_nesting (buf, klass);
1162 p = malloc (strlen (buf) + 1);
1168 image_loaded (MonoProfiler *prof, MonoImage *image, int result)
1173 LogBuffer *logbuffer;
1174 if (result != MONO_PROFILE_OK)
1176 name = mono_image_get_filename (image);
1177 nlen = strlen (name) + 1;
1178 logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + nlen);
1179 now = current_time ();
1180 ENTER_LOG (logbuffer, "image");
1181 emit_byte (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
1182 emit_time (logbuffer, now);
1183 emit_byte (logbuffer, TYPE_IMAGE);
1184 emit_ptr (logbuffer, image);
1185 emit_value (logbuffer, 0); /* flags */
1186 memcpy (logbuffer->data, name, nlen);
1187 logbuffer->data += nlen;
1188 //printf ("loaded image %p (%s)\n", image, name);
1189 EXIT_LOG (logbuffer);
1190 if (logbuffer->next)
1191 safe_send (prof, logbuffer);
1192 process_requests (prof);
1196 image_unloaded (MonoProfiler *prof, MonoImage *image)
1198 const char *name = mono_image_get_filename (image);
1199 int nlen = strlen (name) + 1;
1200 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + nlen);
1201 uint64_t now = current_time ();
1203 ENTER_LOG (logbuffer, "image-unload");
1204 emit_byte (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
1205 emit_time (logbuffer, now);
1206 emit_byte (logbuffer, TYPE_IMAGE);
1207 emit_ptr (logbuffer, image);
1208 emit_value (logbuffer, 0); /* flags */
1209 memcpy (logbuffer->data, name, nlen);
1210 logbuffer->data += nlen;
1211 EXIT_LOG (logbuffer);
1213 if (logbuffer->next)
1214 safe_send (prof, logbuffer);
1216 process_requests (prof);
1220 assembly_loaded (MonoProfiler *prof, MonoAssembly *assembly, int result)
1222 if (result != MONO_PROFILE_OK)
1225 char *name = mono_stringify_assembly_name (mono_assembly_get_name (assembly));
1226 int nlen = strlen (name) + 1;
1227 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + nlen);
1228 uint64_t now = current_time ();
1230 ENTER_LOG (logbuffer, "assembly-load");
1231 emit_byte (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
1232 emit_time (logbuffer, now);
1233 emit_byte (logbuffer, TYPE_ASSEMBLY);
1234 emit_ptr (logbuffer, assembly);
1235 emit_value (logbuffer, 0); /* flags */
1236 memcpy (logbuffer->data, name, nlen);
1237 logbuffer->data += nlen;
1238 EXIT_LOG (logbuffer);
1242 if (logbuffer->next)
1243 safe_send (prof, logbuffer);
1245 process_requests (prof);
1249 assembly_unloaded (MonoProfiler *prof, MonoAssembly *assembly)
1251 char *name = mono_stringify_assembly_name (mono_assembly_get_name (assembly));
1252 int nlen = strlen (name) + 1;
1253 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + nlen);
1254 uint64_t now = current_time ();
1256 ENTER_LOG (logbuffer, "assembly-unload");
1257 emit_byte (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
1258 emit_time (logbuffer, now);
1259 emit_byte (logbuffer, TYPE_ASSEMBLY);
1260 emit_ptr (logbuffer, assembly);
1261 emit_value (logbuffer, 0); /* flags */
1262 memcpy (logbuffer->data, name, nlen);
1263 logbuffer->data += nlen;
1264 EXIT_LOG (logbuffer);
1268 if (logbuffer->next)
1269 safe_send (prof, logbuffer);
1271 process_requests (prof);
1275 class_loaded (MonoProfiler *prof, MonoClass *klass, int result)
1281 LogBuffer *logbuffer;
1282 if (result != MONO_PROFILE_OK)
1284 if (InterlockedRead (&runtime_inited))
1285 name = mono_type_get_name (mono_class_get_type (klass));
1287 name = type_name (klass);
1288 nlen = strlen (name) + 1;
1289 image = mono_class_get_image (klass);
1290 logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + 10 + nlen);
1291 now = current_time ();
1292 ENTER_LOG (logbuffer, "class");
1293 emit_byte (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
1294 emit_time (logbuffer, now);
1295 emit_byte (logbuffer, TYPE_CLASS);
1296 emit_ptr (logbuffer, klass);
1297 emit_ptr (logbuffer, image);
1298 emit_value (logbuffer, 0); /* flags */
1299 memcpy (logbuffer->data, name, nlen);
1300 logbuffer->data += nlen;
1301 //printf ("loaded class %p (%s)\n", klass, name);
1306 EXIT_LOG (logbuffer);
1307 if (logbuffer->next)
1308 safe_send (prof, logbuffer);
1309 process_requests (prof);
1313 class_unloaded (MonoProfiler *prof, MonoClass *klass)
1317 if (InterlockedRead (&runtime_inited))
1318 name = mono_type_get_name (mono_class_get_type (klass));
1320 name = type_name (klass);
1322 int nlen = strlen (name) + 1;
1323 MonoImage *image = mono_class_get_image (klass);
1324 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + 10 + nlen);
1325 uint64_t now = current_time ();
1327 ENTER_LOG (logbuffer, "class-unload");
1328 emit_byte (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
1329 emit_time (logbuffer, now);
1330 emit_byte (logbuffer, TYPE_CLASS);
1331 emit_ptr (logbuffer, klass);
1332 emit_ptr (logbuffer, image);
1333 emit_value (logbuffer, 0); /* flags */
1334 memcpy (logbuffer->data, name, nlen);
1335 logbuffer->data += nlen;
1336 EXIT_LOG (logbuffer);
1343 if (logbuffer->next)
1344 safe_send (prof, logbuffer);
1346 process_requests (prof);
1349 #ifndef DISABLE_HELPER_THREAD
1350 static void process_method_enter_coverage (MonoProfiler *prof, MonoMethod *method);
1351 #endif /* DISABLE_HELPER_THREAD */
1354 method_enter (MonoProfiler *prof, MonoMethod *method)
1356 uint64_t now = current_time ();
1358 #ifndef DISABLE_HELPER_THREAD
1359 process_method_enter_coverage (prof, method);
1360 #endif /* DISABLE_HELPER_THREAD */
1362 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10);
1363 if (logbuffer->call_depth++ > max_call_depth)
1365 ENTER_LOG (logbuffer, "enter");
1366 emit_byte (logbuffer, TYPE_ENTER | TYPE_METHOD);
1367 emit_time (logbuffer, now);
1368 emit_method (prof, logbuffer, method);
1369 EXIT_LOG (logbuffer);
1371 process_requests (prof);
1375 method_leave (MonoProfiler *prof, MonoMethod *method)
1378 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10);
1379 if (--logbuffer->call_depth > max_call_depth)
1381 now = current_time ();
1382 ENTER_LOG (logbuffer, "leave");
1383 emit_byte (logbuffer, TYPE_LEAVE | TYPE_METHOD);
1384 emit_time (logbuffer, now);
1385 emit_method (prof, logbuffer, method);
1386 EXIT_LOG (logbuffer);
1387 if (logbuffer->next)
1388 safe_send (prof, logbuffer);
1389 process_requests (prof);
1393 method_exc_leave (MonoProfiler *prof, MonoMethod *method)
1396 LogBuffer *logbuffer;
1399 logbuffer = ensure_logbuf (1 + 10 + 10);
1400 if (--logbuffer->call_depth > max_call_depth)
1402 now = current_time ();
1403 ENTER_LOG (logbuffer, "eleave");
1404 emit_byte (logbuffer, TYPE_EXC_LEAVE | TYPE_METHOD);
1405 emit_time (logbuffer, now);
1406 emit_method (prof, logbuffer, method);
1407 EXIT_LOG (logbuffer);
1408 process_requests (prof);
1412 method_jitted (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *ji, int result)
1414 if (result != MONO_PROFILE_OK)
1417 register_method_local (prof, method, ji);
1419 process_requests (prof);
1423 code_buffer_new (MonoProfiler *prof, void *buffer, int size, MonoProfilerCodeBufferType type, void *data)
1428 LogBuffer *logbuffer;
1429 if (type == MONO_PROFILER_CODE_BUFFER_SPECIFIC_TRAMPOLINE) {
1431 nlen = strlen (name) + 1;
1436 logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10 + nlen);
1437 now = current_time ();
1438 ENTER_LOG (logbuffer, "code buffer");
1439 emit_byte (logbuffer, TYPE_JITHELPER | TYPE_RUNTIME);
1440 emit_time (logbuffer, now);
1441 emit_value (logbuffer, type);
1442 emit_ptr (logbuffer, buffer);
1443 emit_value (logbuffer, size);
1445 memcpy (logbuffer->data, name, nlen);
1446 logbuffer->data += nlen;
1448 EXIT_LOG (logbuffer);
1449 process_requests (prof);
1453 throw_exc (MonoProfiler *prof, MonoObject *object)
1455 int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces)? TYPE_EXCEPTION_BT: 0;
1458 LogBuffer *logbuffer;
1461 logbuffer = ensure_logbuf (1 + 10 + 10 + MAX_FRAMES * (10 + 10 + 10));
1462 now = current_time ();
1463 ENTER_LOG (logbuffer, "throw");
1464 emit_byte (logbuffer, do_bt | TYPE_EXCEPTION);
1465 emit_time (logbuffer, now);
1466 emit_obj (logbuffer, object);
1468 emit_bt (prof, logbuffer, &data);
1469 EXIT_LOG (logbuffer);
1470 process_requests (prof);
1474 clause_exc (MonoProfiler *prof, MonoMethod *method, int clause_type, int clause_num)
1477 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10);
1478 now = current_time ();
1479 ENTER_LOG (logbuffer, "clause");
1480 emit_byte (logbuffer, TYPE_EXCEPTION | TYPE_CLAUSE);
1481 emit_time (logbuffer, now);
1482 emit_value (logbuffer, clause_type);
1483 emit_value (logbuffer, clause_num);
1484 emit_method (prof, logbuffer, method);
1485 EXIT_LOG (logbuffer);
1487 process_requests (prof);
1491 monitor_event (MonoProfiler *profiler, MonoObject *object, MonoProfilerMonitorEvent event)
1493 int do_bt = (nocalls && InterlockedRead (&runtime_inited) && !notraces && event == MONO_PROFILER_MONITOR_CONTENTION)? TYPE_MONITOR_BT: 0;
1496 LogBuffer *logbuffer;
1499 logbuffer = ensure_logbuf (1 + 10 + 10 + MAX_FRAMES * (10 + 10 + 10));
1500 now = current_time ();
1501 ENTER_LOG (logbuffer, "monitor");
1502 emit_byte (logbuffer, (event << 4) | do_bt | TYPE_MONITOR);
1503 emit_time (logbuffer, now);
1504 emit_obj (logbuffer, object);
1506 emit_bt (profiler, logbuffer, &data);
1507 EXIT_LOG (logbuffer);
1508 process_requests (profiler);
1512 thread_start (MonoProfiler *prof, uintptr_t tid)
1514 //printf ("thread start %p\n", (void*)tid);
1517 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10);
1518 uint64_t now = current_time ();
1520 ENTER_LOG (logbuffer, "thread-start");
1521 emit_byte (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
1522 emit_time (logbuffer, now);
1523 emit_byte (logbuffer, TYPE_THREAD);
1524 emit_ptr (logbuffer, (void*) tid);
1525 emit_value (logbuffer, 0); /* flags */
1526 EXIT_LOG (logbuffer);
1528 if (logbuffer->next)
1529 safe_send (prof, logbuffer);
1531 process_requests (prof);
1535 thread_end (MonoProfiler *prof, uintptr_t tid)
1537 if (TLS_GET (LogBuffer, tlsbuffer)) {
1538 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10);
1539 uint64_t now = current_time ();
1541 ENTER_LOG (logbuffer, "thread-end");
1542 emit_byte (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
1543 emit_time (logbuffer, now);
1544 emit_byte (logbuffer, TYPE_THREAD);
1545 emit_ptr (logbuffer, (void*) tid);
1546 emit_value (logbuffer, 0); /* flags */
1547 EXIT_LOG (logbuffer);
1549 send_buffer (prof, TLS_GET (GPtrArray, tlsmethodlist), logbuffer);
1551 /* Don't process requests as the thread is detached from the runtime. */
1554 TLS_SET (tlsbuffer, NULL);
1555 TLS_SET (tlsmethodlist, NULL);
1559 domain_loaded (MonoProfiler *prof, MonoDomain *domain, int result)
1561 if (result != MONO_PROFILE_OK)
1564 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10);
1565 uint64_t now = current_time ();
1567 ENTER_LOG (logbuffer, "domain-start");
1568 emit_byte (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
1569 emit_time (logbuffer, now);
1570 emit_byte (logbuffer, TYPE_DOMAIN);
1571 emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
1572 emit_value (logbuffer, 0); /* flags */
1573 EXIT_LOG (logbuffer);
1575 if (logbuffer->next)
1576 safe_send (prof, logbuffer);
1578 process_requests (prof);
1582 domain_unloaded (MonoProfiler *prof, MonoDomain *domain)
1584 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10);
1585 uint64_t now = current_time ();
1587 ENTER_LOG (logbuffer, "domain-end");
1588 emit_byte (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
1589 emit_time (logbuffer, now);
1590 emit_byte (logbuffer, TYPE_DOMAIN);
1591 emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
1592 emit_value (logbuffer, 0); /* flags */
1593 EXIT_LOG (logbuffer);
1595 if (logbuffer->next)
1596 safe_send (prof, logbuffer);
1598 process_requests (prof);
1602 domain_name (MonoProfiler *prof, MonoDomain *domain, const char *name)
1604 int nlen = strlen (name) + 1;
1605 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + nlen);
1606 uint64_t now = current_time ();
1608 ENTER_LOG (logbuffer, "domain-name");
1609 emit_byte (logbuffer, TYPE_METADATA);
1610 emit_time (logbuffer, now);
1611 emit_byte (logbuffer, TYPE_DOMAIN);
1612 emit_ptr (logbuffer, (void*)(uintptr_t) mono_domain_get_id (domain));
1613 emit_value (logbuffer, 0); /* flags */
1614 memcpy (logbuffer->data, name, nlen);
1615 logbuffer->data += nlen;
1616 EXIT_LOG (logbuffer);
1618 if (logbuffer->next)
1619 safe_send (prof, logbuffer);
1621 process_requests (prof);
1625 context_loaded (MonoProfiler *prof, MonoAppContext *context)
1627 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + 10);
1628 uint64_t now = current_time ();
1630 ENTER_LOG (logbuffer, "context-start");
1631 emit_byte (logbuffer, TYPE_END_LOAD | TYPE_METADATA);
1632 emit_time (logbuffer, now);
1633 emit_byte (logbuffer, TYPE_CONTEXT);
1634 emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_id (context));
1635 emit_value (logbuffer, 0); /* flags */
1636 emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_domain_id (context));
1637 EXIT_LOG (logbuffer);
1639 if (logbuffer->next)
1640 safe_send (prof, logbuffer);
1642 process_requests (prof);
1646 context_unloaded (MonoProfiler *prof, MonoAppContext *context)
1648 LogBuffer *logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + 10);
1649 uint64_t now = current_time ();
1651 ENTER_LOG (logbuffer, "context-end");
1652 emit_byte (logbuffer, TYPE_END_UNLOAD | TYPE_METADATA);
1653 emit_time (logbuffer, now);
1654 emit_byte (logbuffer, TYPE_CONTEXT);
1655 emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_id (context));
1656 emit_value (logbuffer, 0); /* flags */
1657 emit_ptr (logbuffer, (void*)(uintptr_t) mono_context_get_domain_id (context));
1658 EXIT_LOG (logbuffer);
1660 if (logbuffer->next)
1661 safe_send (prof, logbuffer);
1663 process_requests (prof);
1667 thread_name (MonoProfiler *prof, uintptr_t tid, const char *name)
1669 int len = strlen (name) + 1;
1671 LogBuffer *logbuffer;
1672 logbuffer = ensure_logbuf (1 + 10 + 1 + 10 + 10 + len);
1673 now = current_time ();
1674 ENTER_LOG (logbuffer, "tname");
1675 emit_byte (logbuffer, TYPE_METADATA);
1676 emit_time (logbuffer, now);
1677 emit_byte (logbuffer, TYPE_THREAD);
1678 emit_ptr (logbuffer, (void*)tid);
1679 emit_value (logbuffer, 0); /* flags */
1680 memcpy (logbuffer->data, name, len);
1681 logbuffer->data += len;
1682 EXIT_LOG (logbuffer);
1684 if (logbuffer->next)
1685 safe_send (prof, logbuffer);
1687 process_requests (prof);
1699 AsyncFrameInfo *data;
1703 async_walk_stack (MonoMethod *method, MonoDomain *domain, void *base_address, int offset, void *data)
1705 AsyncFrameData *frame = data;
1706 if (frame->count < num_frames) {
1707 frame->data [frame->count].method = method;
1708 frame->data [frame->count].domain = domain;
1709 frame->data [frame->count].base_address = base_address;
1710 frame->data [frame->count].offset = offset;
1711 // printf ("In %d at %p (dom %p) (native: %p)\n", frame->count, method, domain, base_address);
1714 return frame->count == num_frames;
1718 (type | frame count), tid, time, ip, [method, domain, base address, offset] * frames
1720 #define SAMPLE_EVENT_SIZE_IN_SLOTS(FRAMES) (4 + (FRAMES) * 4)
1723 mono_sample_hit (MonoProfiler *profiler, unsigned char *ip, void *context)
1726 AsyncFrameInfo frames [num_frames];
1727 AsyncFrameData bt_data = { 0, &frames [0]};
1729 uintptr_t *data, *new_data, *old_data;
1735 now = current_time ();
1737 mono_stack_walk_async_safe (&async_walk_stack, context, &bt_data);
1739 elapsed = (now - profiler->startup_time) / 10000;
1743 snprintf (buf, sizeof (buf), "hit at %p in thread %p after %llu ms\n", ip, (void*)thread_id (), (unsigned long long int)elapsed/100);
1745 ign_res (write (2, buf, len));
1747 sbuf = profiler->stat_buffers;
1750 /* flush the buffer at 1 second intervals */
1751 if (sbuf->data > sbuf->buf && (elapsed - sbuf->buf [2]) > 100000) {
1754 /* overflow: 400 slots is a big enough number to reduce the chance of losing this event if many
1755 * threads hit this same spot at the same time
1757 if (timedout || (sbuf->data + 400 >= sbuf->data_end)) {
1758 StatBuffer *oldsb, *foundsb;
1759 sbuf = create_stat_buffer ();
1761 oldsb = profiler->stat_buffers;
1763 foundsb = InterlockedCompareExchangePointer ((void * volatile*)&profiler->stat_buffers, sbuf, oldsb);
1764 } while (foundsb != oldsb);
1766 ign_res (write (2, "overflow\n", 9));
1767 /* notify the helper thread */
1768 if (sbuf->next->next) {
1770 ign_res (write (profiler->pipes [1], &c, 1));
1772 ign_res (write (2, "notify\n", 7));
1776 old_data = sbuf->data;
1777 new_data = old_data + SAMPLE_EVENT_SIZE_IN_SLOTS (bt_data.count);
1778 data = InterlockedCompareExchangePointer ((void * volatile*)&sbuf->data, new_data, old_data);
1779 } while (data != old_data);
1780 if (old_data >= sbuf->data_end)
1781 return; /* lost event */
1782 old_data [0] = 1 | (sample_type << 16) | (bt_data.count << 8);
1783 old_data [1] = thread_id ();
1784 old_data [2] = elapsed;
1785 old_data [3] = (uintptr_t)ip;
1786 for (i = 0; i < bt_data.count; ++i) {
1787 old_data [4 + 4 * i + 0] = (uintptr_t)frames [i].method;
1788 old_data [4 + 4 * i + 1] = (uintptr_t)frames [i].domain;
1789 old_data [4 + 4 * i + 2] = (uintptr_t)frames [i].base_address;
1790 old_data [4 + 4 * i + 3] = (uintptr_t)frames [i].offset;
1794 static uintptr_t *code_pages = 0;
1795 static int num_code_pages = 0;
1796 static int size_code_pages = 0;
1797 #define CPAGE_SHIFT (9)
1798 #define CPAGE_SIZE (1 << CPAGE_SHIFT)
1799 #define CPAGE_MASK (~(CPAGE_SIZE - 1))
1800 #define CPAGE_ADDR(p) ((p) & CPAGE_MASK)
1803 add_code_page (uintptr_t *hash, uintptr_t hsize, uintptr_t page)
1806 uintptr_t start_pos;
1807 start_pos = (page >> CPAGE_SHIFT) % hsize;
1810 if (hash [i] && CPAGE_ADDR (hash [i]) == CPAGE_ADDR (page)) {
1812 } else if (!hash [i]) {
1819 } while (i != start_pos);
1820 /* should not happen */
1821 printf ("failed code page store\n");
1826 add_code_pointer (uintptr_t ip)
1829 if (num_code_pages * 2 >= size_code_pages) {
1831 uintptr_t old_size = size_code_pages;
1832 size_code_pages *= 2;
1833 if (size_code_pages == 0)
1834 size_code_pages = 16;
1835 n = calloc (sizeof (uintptr_t) * size_code_pages, 1);
1836 for (i = 0; i < old_size; ++i) {
1838 add_code_page (n, size_code_pages, code_pages [i]);
1844 num_code_pages += add_code_page (code_pages, size_code_pages, ip & CPAGE_MASK);
1847 /* ELF code crashes on some systems. */
1848 //#if defined(HAVE_DL_ITERATE_PHDR) && defined(ELFMAG0)
1851 dump_ubin (const char *filename, uintptr_t load_addr, uint64_t offset, uintptr_t size)
1854 LogBuffer *logbuffer;
1856 len = strlen (filename) + 1;
1857 now = current_time ();
1858 logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10 + len);
1859 emit_byte (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_UBIN);
1860 emit_time (logbuffer, now);
1861 emit_svalue (logbuffer, load_addr);
1862 emit_uvalue (logbuffer, offset);
1863 emit_uvalue (logbuffer, size);
1864 memcpy (logbuffer->data, filename, len);
1865 logbuffer->data += len;
1870 dump_usym (const char *name, uintptr_t value, uintptr_t size)
1872 LogBuffer *logbuffer;
1874 len = strlen (name) + 1;
1875 logbuffer = ensure_logbuf (1 + 10 + 10 + len);
1876 emit_byte (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_USYM);
1877 emit_ptr (logbuffer, (void*)value);
1878 emit_value (logbuffer, size);
1879 memcpy (logbuffer->data, name, len);
1880 logbuffer->data += len;
1883 /* ELF code crashes on some systems. */
1884 //#if defined(ELFMAG0)
1887 #if SIZEOF_VOID_P == 4
1888 #define ELF_WSIZE 32
1890 #define ELF_WSIZE 64
1893 #define ElfW(type) _ElfW (Elf, ELF_WSIZE, type)
1894 #define _ElfW(e,w,t) _ElfW_1 (e, w, _##t)
1895 #define _ElfW_1(e,w,t) e##w##t
1899 dump_elf_symbols (ElfW(Sym) *symbols, int num_symbols, const char *strtab, void *load_addr)
1902 for (i = 0; i < num_symbols; ++i) {
1904 sym = strtab + symbols [i].st_name;
1905 if (!symbols [i].st_name || !symbols [i].st_size || (symbols [i].st_info & 0xf) != STT_FUNC)
1907 //printf ("symbol %s at %d\n", sym, symbols [i].st_value);
1908 dump_usym (sym, (uintptr_t)load_addr + symbols [i].st_value, symbols [i].st_size);
1913 read_elf_symbols (MonoProfiler *prof, const char *filename, void *load_addr)
1920 ElfW(Shdr) *sheader;
1921 ElfW(Shdr) *shstrtabh;
1922 ElfW(Shdr) *symtabh = NULL;
1923 ElfW(Shdr) *strtabh = NULL;
1924 ElfW(Sym) *symbols = NULL;
1928 fd = open (filename, O_RDONLY);
1931 if (fstat (fd, &statb) != 0) {
1935 file_size = statb.st_size;
1936 data = mmap (NULL, file_size, PROT_READ, MAP_PRIVATE, fd, 0);
1938 if (data == MAP_FAILED)
1941 if (header->e_ident [EI_MAG0] != ELFMAG0 ||
1942 header->e_ident [EI_MAG1] != ELFMAG1 ||
1943 header->e_ident [EI_MAG2] != ELFMAG2 ||
1944 header->e_ident [EI_MAG3] != ELFMAG3 ) {
1945 munmap (data, file_size);
1948 sheader = (void*)((char*)data + header->e_shoff);
1949 shstrtabh = (void*)((char*)sheader + (header->e_shentsize * header->e_shstrndx));
1950 strtab = (const char*)data + shstrtabh->sh_offset;
1951 for (i = 0; i < header->e_shnum; ++i) {
1952 //printf ("section header: %d\n", sheader->sh_type);
1953 if (sheader->sh_type == SHT_SYMTAB) {
1955 strtabh = (void*)((char*)data + header->e_shoff + sheader->sh_link * header->e_shentsize);
1956 /*printf ("symtab section header: %d, .strstr: %d\n", i, sheader->sh_link);*/
1959 sheader = (void*)((char*)sheader + header->e_shentsize);
1961 if (!symtabh || !strtabh) {
1962 munmap (data, file_size);
1965 strtab = (const char*)data + strtabh->sh_offset;
1966 num_symbols = symtabh->sh_size / symtabh->sh_entsize;
1967 symbols = (void*)((char*)data + symtabh->sh_offset);
1968 dump_elf_symbols (symbols, num_symbols, strtab, load_addr);
1969 munmap (data, file_size);
1974 /* ELF code crashes on some systems. */
1975 //#if defined(HAVE_DL_ITERATE_PHDR) && defined(ELFMAG0)
1978 elf_dl_callback (struct dl_phdr_info *info, size_t size, void *data)
1980 MonoProfiler *prof = data;
1982 const char *filename;
1984 char *a = (void*)info->dlpi_addr;
1986 ElfW(Dyn) *dyn = NULL;
1987 ElfW(Sym) *symtab = NULL;
1988 ElfW(Word) *hash_table = NULL;
1989 ElfW(Ehdr) *header = NULL;
1990 const char* strtab = NULL;
1991 for (obj = prof->binary_objects; obj; obj = obj->next) {
1995 filename = info->dlpi_name;
1998 if (!info->dlpi_addr && !filename [0]) {
1999 int l = readlink ("/proc/self/exe", buf, sizeof (buf) - 1);
2005 obj = calloc (sizeof (BinaryObject), 1);
2006 obj->addr = (void*)info->dlpi_addr;
2007 obj->name = pstrdup (filename);
2008 obj->next = prof->binary_objects;
2009 prof->binary_objects = obj;
2010 //printf ("loaded file: %s at %p, segments: %d\n", filename, (void*)info->dlpi_addr, info->dlpi_phnum);
2012 for (i = 0; i < info->dlpi_phnum; ++i) {
2013 //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);
2014 if (info->dlpi_phdr[i].p_type == PT_LOAD && !header) {
2015 header = (ElfW(Ehdr)*)(info->dlpi_addr + info->dlpi_phdr[i].p_vaddr);
2016 if (header->e_ident [EI_MAG0] != ELFMAG0 ||
2017 header->e_ident [EI_MAG1] != ELFMAG1 ||
2018 header->e_ident [EI_MAG2] != ELFMAG2 ||
2019 header->e_ident [EI_MAG3] != ELFMAG3 ) {
2022 dump_ubin (filename, info->dlpi_addr + info->dlpi_phdr[i].p_vaddr, info->dlpi_phdr[i].p_offset, info->dlpi_phdr[i].p_memsz);
2023 } else if (info->dlpi_phdr[i].p_type == PT_DYNAMIC) {
2024 dyn = (ElfW(Dyn) *)(info->dlpi_addr + info->dlpi_phdr[i].p_vaddr);
2027 if (read_elf_symbols (prof, filename, (void*)info->dlpi_addr))
2029 if (!info->dlpi_name || !info->dlpi_name[0])
2033 for (i = 0; dyn [i].d_tag != DT_NULL; ++i) {
2034 if (dyn [i].d_tag == DT_SYMTAB) {
2035 if (symtab && do_debug)
2036 printf ("multiple symtabs: %d\n", i);
2037 symtab = (ElfW(Sym) *)(a + dyn [i].d_un.d_ptr);
2038 } else if (dyn [i].d_tag == DT_HASH) {
2039 hash_table = (ElfW(Word) *)(a + dyn [i].d_un.d_ptr);
2040 } else if (dyn [i].d_tag == DT_STRTAB) {
2041 strtab = (const char*)(a + dyn [i].d_un.d_ptr);
2046 num_sym = hash_table [1];
2047 dump_elf_symbols (symtab, num_sym, strtab, (void*)info->dlpi_addr);
2052 load_binaries (MonoProfiler *prof)
2054 dl_iterate_phdr (elf_dl_callback, prof);
2059 load_binaries (MonoProfiler *prof)
2066 symbol_for (uintptr_t code)
2069 void *ip = (void*)code;
2071 if (dladdr (ip, &di)) {
2073 return di.dli_sname;
2076 names = backtrace_symbols (&ip, 1);
2078 const char* p = names [0];
2089 dump_unmanaged_coderefs (MonoProfiler *prof)
2092 const char* last_symbol;
2093 uintptr_t addr, page_end;
2095 if (load_binaries (prof))
2097 for (i = 0; i < size_code_pages; ++i) {
2099 if (!code_pages [i] || code_pages [i] & 1)
2102 addr = CPAGE_ADDR (code_pages [i]);
2103 page_end = addr + CPAGE_SIZE;
2104 code_pages [i] |= 1;
2105 /* we dump the symbols for the whole page */
2106 for (; addr < page_end; addr += 16) {
2107 sym = symbol_for (addr);
2108 if (sym && sym == last_symbol)
2113 dump_usym (sym, addr, 0); /* let's not guess the size */
2114 //printf ("found symbol at %p: %s\n", (void*)addr, sym);
2120 compare_sample_events (gconstpointer a, gconstpointer b)
2122 uintptr_t tid1 = (*(uintptr_t **) a) [1];
2123 uintptr_t tid2 = (*(uintptr_t **) b) [1];
2125 return tid1 > tid2 ? 1 :
2131 dump_sample_hits (MonoProfiler *prof, StatBuffer *sbuf)
2133 LogBuffer *logbuffer;
2137 dump_sample_hits (prof, sbuf->next);
2138 free_buffer (sbuf->next, sbuf->next->size);
2142 g_ptr_array_set_size (prof->sorted_sample_events, 0);
2144 for (uintptr_t *sample = sbuf->buf; sample < sbuf->data;) {
2145 int count = sample [0] & 0xff;
2146 int mbt_count = (sample [0] & 0xff00) >> 8;
2148 if (sample + SAMPLE_EVENT_SIZE_IN_SLOTS (mbt_count) > sbuf->data)
2151 g_ptr_array_add (prof->sorted_sample_events, sample);
2153 sample += count + 3 + 4 * mbt_count;
2156 g_ptr_array_sort (prof->sorted_sample_events, compare_sample_events);
2158 for (guint sidx = 0; sidx < prof->sorted_sample_events->len; sidx++) {
2159 uintptr_t *sample = g_ptr_array_index (prof->sorted_sample_events, sidx);
2160 int count = sample [0] & 0xff;
2161 int mbt_count = (sample [0] & 0xff00) >> 8;
2162 int type = sample [0] >> 16;
2163 uintptr_t *managed_sample_base = sample + count + 3;
2164 uintptr_t thread_id = sample [1];
2166 for (int i = 0; i < mbt_count; ++i) {
2167 MonoMethod *method = (MonoMethod*)managed_sample_base [i * 4 + 0];
2168 MonoDomain *domain = (MonoDomain*)managed_sample_base [i * 4 + 1];
2169 void *address = (void*)managed_sample_base [i * 4 + 2];
2172 MonoJitInfo *ji = mono_jit_info_table_find (domain, address);
2175 managed_sample_base [i * 4 + 0] = (uintptr_t)mono_jit_info_get_method (ji);
2179 logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10 + 10 + 10 + mbt_count * (10 + 10 + 10));
2180 emit_byte (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_HIT);
2181 emit_value (logbuffer, type);
2182 emit_uvalue (logbuffer, prof->startup_time + (uint64_t)sample [2] * (uint64_t)10000);
2183 emit_ptr (logbuffer, (void *) thread_id);
2184 emit_value (logbuffer, count);
2185 for (int i = 0; i < count; ++i) {
2186 emit_ptr (logbuffer, (void*)sample [i + 3]);
2187 add_code_pointer (sample [i + 3]);
2190 sample += count + 3;
2191 /* new in data version 6 */
2192 emit_uvalue (logbuffer, mbt_count);
2193 for (int i = 0; i < mbt_count; ++i) {
2194 MonoMethod *method = (MonoMethod *) sample [i * 4 + 0];
2195 uintptr_t native_offset = sample [i * 4 + 3];
2197 emit_method (prof, logbuffer, method);
2198 emit_svalue (logbuffer, 0); /* il offset will always be 0 from now on */
2199 emit_svalue (logbuffer, native_offset);
2203 dump_unmanaged_coderefs (prof);
2209 mono_cpu_count (void)
2212 #ifdef PLATFORM_ANDROID
2213 /* Android tries really hard to save power by powering off CPUs on SMP phones which
2214 * means the normal way to query cpu count returns a wrong value with userspace API.
2215 * Instead we use /sys entries to query the actual hardware CPU count.
2217 char buffer[8] = {'\0'};
2218 int present = open ("/sys/devices/system/cpu/present", O_RDONLY);
2219 /* Format of the /sys entry is a cpulist of indexes which in the case
2220 * of present is always of the form "0-(n-1)" when there is more than
2221 * 1 core, n being the number of CPU cores in the system. Otherwise
2222 * the value is simply 0
2224 if (present != -1 && read (present, (char*)buffer, sizeof (buffer)) > 3)
2225 count = strtol (((char*)buffer) + 2, NULL, 10);
2231 #ifdef _SC_NPROCESSORS_ONLN
2232 count = sysconf (_SC_NPROCESSORS_ONLN);
2239 size_t len = sizeof (int);
2242 if (sysctl (mib, 2, &count, &len, NULL, 0) == 0)
2249 GetSystemInfo (&info);
2250 return info.dwNumberOfProcessors;
2259 unsigned int prev_pos;
2261 struct perf_event_mmap_page *page_desc;
2264 static PerfData *perf_data = NULL;
2265 static int num_perf;
2266 #define PERF_PAGES_SHIFT 4
2267 static int num_pages = 1 << PERF_PAGES_SHIFT;
2268 static unsigned int mmap_mask;
2271 struct perf_event_header h;
2281 perf_event_syscall (struct perf_event_attr *attr, pid_t pid, int cpu, int group_fd, unsigned long flags)
2283 attr->size = PERF_ATTR_SIZE_VER0;
2284 //printf ("perf attr size: %d\n", attr->size);
2285 #if defined(__x86_64__)
2286 return syscall(/*__NR_perf_event_open*/ 298, attr, pid, cpu, group_fd, flags);
2287 #elif defined(__i386__)
2288 return syscall(/*__NR_perf_event_open*/ 336, attr, pid, cpu, group_fd, flags);
2289 #elif defined(__arm__) || defined (__aarch64__)
2290 return syscall(/*__NR_perf_event_open*/ 364, attr, pid, cpu, group_fd, flags);
2297 setup_perf_map (PerfData *perf)
2299 perf->mmap_base = mmap (NULL, (num_pages + 1) * getpagesize (), PROT_READ|PROT_WRITE, MAP_SHARED, perf->perf_fd, 0);
2300 if (perf->mmap_base == MAP_FAILED) {
2302 printf ("failed mmap\n");
2305 perf->page_desc = perf->mmap_base;
2307 printf ("mmap version: %d\n", perf->page_desc->version);
2312 dump_perf_hits (MonoProfiler *prof, void *buf, int size)
2314 LogBuffer *logbuffer;
2315 void *end = (char*)buf + size;
2317 int pid = getpid ();
2323 if (pid != s->pid) {
2325 printf ("event for different pid: %d\n", s->pid);
2326 buf = (char*)buf + s->h.size;
2329 /*ip = (void*)s->ip;
2330 printf ("sample: %d, size: %d, ip: %p (%s), timestamp: %llu, nframes: %llu\n",
2331 s->h.type, s->h.size, ip, symbol_for (ip), s->timestamp, s->nframes);*/
2332 logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10 + 10);
2333 emit_byte (logbuffer, TYPE_SAMPLE | TYPE_SAMPLE_HIT);
2334 emit_value (logbuffer, sample_type);
2335 emit_uvalue (logbuffer, s->timestamp - prof->startup_time);
2337 * No useful thread ID to write here, since throughout the
2338 * profiler we use pthread_self () but the ID we get from
2339 * perf is the kernel's thread ID.
2341 emit_ptr (logbuffer, 0);
2342 emit_value (logbuffer, 1); /* count */
2343 emit_ptr (logbuffer, (void*)(uintptr_t)s->ip);
2344 /* no support here yet for the managed backtrace */
2345 emit_uvalue (logbuffer, 0);
2346 add_code_pointer (s->ip);
2347 buf = (char*)buf + s->h.size;
2351 printf ("dumped %d samples\n", samples);
2352 dump_unmanaged_coderefs (prof);
2355 /* read events from the ring buffer */
2357 read_perf_mmap (MonoProfiler* prof, int cpu)
2359 PerfData *perf = perf_data + cpu;
2361 unsigned char *data = (unsigned char*)perf->mmap_base + getpagesize ();
2362 unsigned int head = perf->page_desc->data_head;
2366 mono_memory_read_barrier ();
2368 old = perf->prev_pos;
2372 printf ("lost mmap events: old: %d, head: %d\n", old, head);
2376 if ((old & mmap_mask) + size != (head & mmap_mask)) {
2377 buf = data + (old & mmap_mask);
2378 size = mmap_mask + 1 - (old & mmap_mask);
2380 /* size bytes at buf */
2382 printf ("found1 bytes of events: %d\n", size);
2383 dump_perf_hits (prof, buf, size);
2385 buf = data + (old & mmap_mask);
2387 /* size bytes at buf */
2389 printf ("found bytes of events: %d\n", size);
2390 dump_perf_hits (prof, buf, size);
2392 perf->prev_pos = old;
2393 perf->page_desc->data_tail = old;
2398 setup_perf_event_for_cpu (PerfData *perf, int cpu)
2400 struct perf_event_attr attr;
2401 memset (&attr, 0, sizeof (attr));
2402 attr.type = PERF_TYPE_HARDWARE;
2403 switch (sample_type) {
2404 case SAMPLE_CYCLES: attr.config = PERF_COUNT_HW_CPU_CYCLES; break;
2405 case SAMPLE_INSTRUCTIONS: attr.config = PERF_COUNT_HW_INSTRUCTIONS; break;
2406 case SAMPLE_CACHE_MISSES: attr.config = PERF_COUNT_HW_CACHE_MISSES; break;
2407 case SAMPLE_CACHE_REFS: attr.config = PERF_COUNT_HW_CACHE_REFERENCES; break;
2408 case SAMPLE_BRANCHES: attr.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS; break;
2409 case SAMPLE_BRANCH_MISSES: attr.config = PERF_COUNT_HW_BRANCH_MISSES; break;
2410 default: attr.config = PERF_COUNT_HW_CPU_CYCLES; break;
2412 attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_PERIOD | PERF_SAMPLE_TIME;
2413 // attr.sample_type |= PERF_SAMPLE_CALLCHAIN;
2414 attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING | PERF_FORMAT_ID;
2417 attr.sample_freq = sample_freq;
2419 perf->perf_fd = perf_event_syscall (&attr, getpid (), cpu, -1, 0);
2421 printf ("perf fd: %d, freq: %d, event: %llu\n", perf->perf_fd, sample_freq, attr.config);
2422 if (perf->perf_fd < 0) {
2423 if (perf->perf_fd == -EPERM) {
2424 fprintf (stderr, "Perf syscall denied, do \"echo 1 > /proc/sys/kernel/perf_event_paranoid\" as root to enable.\n");
2427 perror ("open perf event");
2431 if (!setup_perf_map (perf)) {
2432 close (perf->perf_fd);
2440 setup_perf_event (void)
2443 mmap_mask = num_pages * getpagesize () - 1;
2444 num_perf = mono_cpu_count ();
2445 perf_data = calloc (num_perf, sizeof (PerfData));
2446 for (i = 0; i < num_perf; ++i) {
2447 count += setup_perf_event_for_cpu (perf_data + i, i);
2456 #endif /* USE_PERF_EVENTS */
2458 #ifndef DISABLE_HELPER_THREAD
2460 typedef struct MonoCounterAgent {
2461 MonoCounter *counter;
2462 // MonoCounterAgent specific data :
2467 struct MonoCounterAgent *next;
2470 static MonoCounterAgent* counters;
2471 static gboolean counters_initialized = FALSE;
2472 static int counters_index = 1;
2473 static mono_mutex_t counters_mutex;
2476 counters_add_agent (MonoCounter *counter)
2478 MonoCounterAgent *agent, *item;
2480 if (!counters_initialized)
2483 mono_mutex_lock (&counters_mutex);
2485 for (agent = counters; agent; agent = agent->next) {
2486 if (agent->counter == counter) {
2487 agent->value_size = 0;
2489 free (agent->value);
2490 agent->value = NULL;
2492 mono_mutex_unlock (&counters_mutex);
2497 agent = malloc (sizeof (MonoCounterAgent));
2498 agent->counter = counter;
2499 agent->value = NULL;
2500 agent->value_size = 0;
2501 agent->index = counters_index++;
2514 mono_mutex_unlock (&counters_mutex);
2518 counters_init_foreach_callback (MonoCounter *counter, gpointer data)
2520 counters_add_agent (counter);
2525 counters_init (MonoProfiler *profiler)
2527 assert (!counters_initialized);
2529 mono_mutex_init (&counters_mutex);
2531 counters_initialized = TRUE;
2533 mono_counters_on_register (&counters_add_agent);
2534 mono_counters_foreach (counters_init_foreach_callback, NULL);
2538 counters_emit (MonoProfiler *profiler)
2540 MonoCounterAgent *agent;
2541 LogBuffer *logbuffer;
2542 int size = 1 + 10, len = 0;
2544 if (!counters_initialized)
2547 mono_mutex_lock (&counters_mutex);
2549 for (agent = counters; agent; agent = agent->next) {
2553 size += 10 + strlen (mono_counter_get_name (agent->counter)) + 1 + 10 + 10 + 10 + 10;
2558 mono_mutex_unlock (&counters_mutex);
2562 logbuffer = ensure_logbuf (size);
2564 ENTER_LOG (logbuffer, "counters");
2565 emit_byte (logbuffer, TYPE_SAMPLE_COUNTERS_DESC | TYPE_SAMPLE);
2566 emit_value (logbuffer, len);
2567 for (agent = counters; agent; agent = agent->next) {
2573 name = mono_counter_get_name (agent->counter);
2574 emit_value (logbuffer, mono_counter_get_section (agent->counter));
2575 emit_string (logbuffer, name, strlen (name) + 1);
2576 emit_value (logbuffer, mono_counter_get_type (agent->counter));
2577 emit_value (logbuffer, mono_counter_get_unit (agent->counter));
2578 emit_value (logbuffer, mono_counter_get_variance (agent->counter));
2579 emit_value (logbuffer, agent->index);
2583 EXIT_LOG (logbuffer);
2585 safe_send (profiler, logbuffer);
2587 mono_mutex_unlock (&counters_mutex);
2591 counters_sample (MonoProfiler *profiler, uint64_t timestamp)
2593 MonoCounterAgent *agent;
2594 MonoCounter *counter;
2595 LogBuffer *logbuffer;
2601 if (!counters_initialized)
2604 counters_emit (profiler);
2607 buffer = calloc (1, buffer_size);
2609 mono_mutex_lock (&counters_mutex);
2612 for (agent = counters; agent; agent = agent->next)
2613 size += 10 + 10 + mono_counter_get_size (agent->counter);
2616 logbuffer = ensure_logbuf (size);
2618 ENTER_LOG (logbuffer, "counters");
2619 emit_byte (logbuffer, TYPE_SAMPLE_COUNTERS | TYPE_SAMPLE);
2620 emit_uvalue (logbuffer, timestamp);
2621 for (agent = counters; agent; agent = agent->next) {
2624 counter = agent->counter;
2626 size = mono_counter_get_size (counter);
2628 continue; // FIXME error
2629 } else if (size > buffer_size) {
2631 buffer = realloc (buffer, buffer_size);
2634 memset (buffer, 0, buffer_size);
2636 if (mono_counters_sample (counter, buffer, size) < 0)
2637 continue; // FIXME error
2639 type = mono_counter_get_type (counter);
2641 if (!agent->value) {
2642 agent->value = calloc (1, size);
2643 agent->value_size = size;
2645 if (type == MONO_COUNTER_STRING) {
2646 if (strcmp (agent->value, buffer) == 0)
2649 if (agent->value_size == size && memcmp (agent->value, buffer, size) == 0)
2654 emit_uvalue (logbuffer, agent->index);
2655 emit_uvalue (logbuffer, type);
2657 case MONO_COUNTER_INT:
2658 #if SIZEOF_VOID_P == 4
2659 case MONO_COUNTER_WORD:
2661 emit_svalue (logbuffer, *(int*)buffer - *(int*)agent->value);
2663 case MONO_COUNTER_UINT:
2664 emit_uvalue (logbuffer, *(guint*)buffer - *(guint*)agent->value);
2666 case MONO_COUNTER_TIME_INTERVAL:
2667 case MONO_COUNTER_LONG:
2668 #if SIZEOF_VOID_P == 8
2669 case MONO_COUNTER_WORD:
2671 emit_svalue (logbuffer, *(gint64*)buffer - *(gint64*)agent->value);
2673 case MONO_COUNTER_ULONG:
2674 emit_uvalue (logbuffer, *(guint64*)buffer - *(guint64*)agent->value);
2676 case MONO_COUNTER_DOUBLE:
2677 emit_double (logbuffer, *(double*)buffer);
2679 case MONO_COUNTER_STRING:
2681 emit_byte (logbuffer, 0);
2683 emit_byte (logbuffer, 1);
2684 emit_string (logbuffer, (char*)buffer, size);
2691 if (type == MONO_COUNTER_STRING && size > agent->value_size) {
2692 agent->value = realloc (agent->value, size);
2693 agent->value_size = size;
2697 memcpy (agent->value, buffer, size);
2701 emit_value (logbuffer, 0);
2702 EXIT_LOG (logbuffer);
2704 safe_send (profiler, logbuffer);
2706 mono_mutex_unlock (&counters_mutex);
2709 typedef struct _PerfCounterAgent PerfCounterAgent;
2710 struct _PerfCounterAgent {
2711 PerfCounterAgent *next;
2713 char *category_name;
2722 static PerfCounterAgent *perfcounters = NULL;
2725 perfcounters_emit (MonoProfiler *profiler)
2727 PerfCounterAgent *pcagent;
2728 LogBuffer *logbuffer;
2729 int size = 1 + 10, len = 0;
2731 for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
2732 if (pcagent->emitted)
2735 size += 10 + strlen (pcagent->category_name) + 1 + strlen (pcagent->name) + 1 + 10 + 10 + 10 + 10;
2742 logbuffer = ensure_logbuf (size);
2744 ENTER_LOG (logbuffer, "perfcounters");
2745 emit_byte (logbuffer, TYPE_SAMPLE_COUNTERS_DESC | TYPE_SAMPLE);
2746 emit_value (logbuffer, len);
2747 for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
2748 if (pcagent->emitted)
2751 emit_value (logbuffer, MONO_COUNTER_PERFCOUNTERS);
2752 emit_string (logbuffer, pcagent->category_name, strlen (pcagent->category_name) + 1);
2753 emit_string (logbuffer, pcagent->name, strlen (pcagent->name) + 1);
2754 emit_value (logbuffer, MONO_COUNTER_LONG);
2755 emit_value (logbuffer, MONO_COUNTER_RAW);
2756 emit_value (logbuffer, MONO_COUNTER_VARIABLE);
2757 emit_value (logbuffer, pcagent->index);
2759 pcagent->emitted = 1;
2761 EXIT_LOG (logbuffer);
2763 safe_send (profiler, logbuffer);
2767 perfcounters_foreach (char *category_name, char *name, unsigned char type, gint64 value, gpointer user_data)
2769 PerfCounterAgent *pcagent;
2771 for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
2772 if (strcmp (pcagent->category_name, category_name) != 0 || strcmp (pcagent->name, name) != 0)
2774 if (pcagent->value == value)
2777 pcagent->value = value;
2778 pcagent->updated = 1;
2779 pcagent->deleted = 0;
2783 pcagent = g_new0 (PerfCounterAgent, 1);
2784 pcagent->next = perfcounters;
2785 pcagent->index = counters_index++;
2786 pcagent->category_name = g_strdup (category_name);
2787 pcagent->name = g_strdup (name);
2788 pcagent->type = (int) type;
2789 pcagent->value = value;
2790 pcagent->emitted = 0;
2791 pcagent->updated = 1;
2792 pcagent->deleted = 0;
2794 perfcounters = pcagent;
2800 perfcounters_sample (MonoProfiler *profiler, uint64_t timestamp)
2802 PerfCounterAgent *pcagent;
2803 LogBuffer *logbuffer;
2806 if (!counters_initialized)
2809 mono_mutex_lock (&counters_mutex);
2811 /* mark all perfcounters as deleted, foreach will unmark them as necessary */
2812 for (pcagent = perfcounters; pcagent; pcagent = pcagent->next)
2813 pcagent->deleted = 1;
2815 mono_perfcounter_foreach (perfcounters_foreach, perfcounters);
2817 perfcounters_emit (profiler);
2821 for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
2822 if (pcagent->deleted || !pcagent->updated)
2824 size += 10 + 10 + 10;
2828 logbuffer = ensure_logbuf (size);
2830 ENTER_LOG (logbuffer, "perfcounters");
2831 emit_byte (logbuffer, TYPE_SAMPLE_COUNTERS | TYPE_SAMPLE);
2832 emit_uvalue (logbuffer, timestamp);
2833 for (pcagent = perfcounters; pcagent; pcagent = pcagent->next) {
2834 if (pcagent->deleted || !pcagent->updated)
2836 emit_uvalue (logbuffer, pcagent->index);
2837 emit_uvalue (logbuffer, MONO_COUNTER_LONG);
2838 emit_svalue (logbuffer, pcagent->value);
2840 pcagent->updated = 0;
2843 emit_value (logbuffer, 0);
2844 EXIT_LOG (logbuffer);
2846 safe_send (profiler, logbuffer);
2848 mono_mutex_unlock (&counters_mutex);
2852 counters_and_perfcounters_sample (MonoProfiler *prof)
2854 static uint64_t start = -1;
2858 start = current_time ();
2860 now = current_time ();
2861 counters_sample (prof, (now - start) / 1000/ 1000);
2862 perfcounters_sample (prof, (now - start) / 1000/ 1000);
2865 #define COVERAGE_DEBUG(x) if (debug_coverage) {x}
2866 static MonoConcurrentHashTable *coverage_methods = NULL;
2867 static mono_mutex_t coverage_methods_mutex;
2868 static MonoConcurrentHashTable *coverage_assemblies = NULL;
2869 static mono_mutex_t coverage_assemblies_mutex;
2870 static MonoConcurrentHashTable *coverage_classes = NULL;
2871 static mono_mutex_t coverage_classes_mutex;
2872 static MonoConcurrentHashTable *filtered_classes = NULL;
2873 static mono_mutex_t filtered_classes_mutex;
2874 static MonoConcurrentHashTable *entered_methods = NULL;
2875 static mono_mutex_t entered_methods_mutex;
2876 static MonoConcurrentHashTable *image_to_methods = NULL;
2877 static mono_mutex_t image_to_methods_mutex;
2878 static MonoConcurrentHashTable *suppressed_assemblies = NULL;
2879 static mono_mutex_t suppressed_assemblies_mutex;
2880 static gboolean coverage_initialized = FALSE;
2882 static GPtrArray *coverage_data = NULL;
2883 static int previous_offset = 0;
2885 typedef struct _MethodNode MethodNode;
2886 struct _MethodNode {
2887 MonoLockFreeQueueNode node;
2891 typedef struct _CoverageEntry CoverageEntry;
2892 struct _CoverageEntry {
2901 free_coverage_entry (gpointer data, gpointer userdata)
2903 CoverageEntry *entry = (CoverageEntry *)data;
2904 g_free (entry->filename);
2909 obtain_coverage_for_method (MonoProfiler *prof, const MonoProfileCoverageEntry *entry)
2911 int offset = entry->iloffset - previous_offset;
2912 CoverageEntry *e = g_new (CoverageEntry, 1);
2914 previous_offset = entry->iloffset;
2917 e->counter = entry->counter;
2918 e->filename = g_strdup(entry->filename ? entry->filename : "");
2919 e->line = entry->line;
2920 e->column = entry->col;
2922 g_ptr_array_add (coverage_data, e);
2926 parse_generic_type_names(char *name)
2928 char *new_name, *ret;
2929 int within_generic_declaration = 0, generic_members = 1;
2931 if (name == NULL || *name == '\0')
2932 return g_strdup ("");
2934 if (!(ret = new_name = calloc (strlen (name) * 4 + 1, sizeof (char))))
2940 within_generic_declaration = 1;
2944 within_generic_declaration = 0;
2946 if (*(name - 1) != '<') {
2948 *new_name++ = '0' + generic_members;
2950 memcpy (new_name, "<>", 8);
2954 generic_members = 0;
2962 if (!within_generic_declaration)
2963 *new_name++ = *name;
2972 static int method_id;
2974 build_method_buffer (gpointer key, gpointer value, gpointer userdata)
2976 MonoMethod *method = (MonoMethod *)value;
2977 MonoProfiler *prof = (MonoProfiler *)userdata;
2981 const char *image_name, *method_name, *sig, *first_filename;
2982 LogBuffer *logbuffer;
2986 previous_offset = 0;
2987 coverage_data = g_ptr_array_new ();
2989 mono_profiler_coverage_get (prof, method, obtain_coverage_for_method);
2991 klass = mono_method_get_class (method);
2992 image = mono_class_get_image (klass);
2993 image_name = mono_image_get_name (image);
2995 sig = mono_signature_get_desc (mono_method_signature (method), TRUE);
2996 class_name = parse_generic_type_names (mono_type_get_name (mono_class_get_type (klass)));
2997 method_name = mono_method_get_name (method);
2999 if (coverage_data->len != 0) {
3000 CoverageEntry *entry = coverage_data->pdata[0];
3001 first_filename = entry->filename ? entry->filename : "";
3003 first_filename = "";
3005 image_name = image_name ? image_name : "";
3006 sig = sig ? sig : "";
3007 method_name = method_name ? method_name : "";
3011 size += strlen (image_name) + 1;
3012 size += strlen (class_name) + 1;
3013 size += strlen (method_name) + 1;
3014 size += strlen (sig) + 1;
3015 size += strlen (first_filename) + 1;
3017 size += 10 + 10 + 10; /* token + method_id + n_entries*/
3019 logbuffer = ensure_logbuf (size);
3020 ENTER_LOG (logbuffer, "coverage-methods");
3022 emit_byte (logbuffer, TYPE_COVERAGE_METHOD | TYPE_COVERAGE);
3023 emit_string (logbuffer, image_name, strlen (image_name) + 1);
3024 emit_string (logbuffer, class_name, strlen (class_name) + 1);
3025 emit_string (logbuffer, method_name, strlen (method_name) + 1);
3026 emit_string (logbuffer, sig, strlen (sig) + 1);
3027 emit_string (logbuffer, first_filename, strlen (first_filename) + 1);
3029 emit_uvalue (logbuffer, mono_method_get_token (method));
3030 emit_uvalue (logbuffer, method_id);
3031 emit_value (logbuffer, coverage_data->len);
3033 EXIT_LOG (logbuffer);
3034 safe_send (prof, logbuffer);
3036 for (i = 0; i < coverage_data->len; i++) {
3037 CoverageEntry *entry = coverage_data->pdata[i];
3039 logbuffer = ensure_logbuf (1 + 10 + 10 + 10 + 10 + 10);
3040 ENTER_LOG (logbuffer, "coverage-statement");
3042 emit_byte (logbuffer, TYPE_COVERAGE_STATEMENT | TYPE_COVERAGE);
3043 emit_uvalue (logbuffer, method_id);
3044 emit_uvalue (logbuffer, entry->offset);
3045 emit_uvalue (logbuffer, entry->counter);
3046 emit_uvalue (logbuffer, entry->line);
3047 emit_uvalue (logbuffer, entry->column);
3049 EXIT_LOG (logbuffer);
3050 safe_send (prof, logbuffer);
3055 g_free (class_name);
3057 g_ptr_array_foreach (coverage_data, free_coverage_entry, NULL);
3058 g_ptr_array_free (coverage_data, TRUE);
3059 coverage_data = NULL;
3062 /* This empties the queue */
3064 count_queue (MonoLockFreeQueue *queue)
3066 MonoLockFreeQueueNode *node;
3069 while ((node = mono_lock_free_queue_dequeue (queue))) {
3071 mono_lock_free_queue_node_free (node);
3078 build_class_buffer (gpointer key, gpointer value, gpointer userdata)
3080 MonoClass *klass = (MonoClass *)key;
3081 MonoLockFreeQueue *class_methods = (MonoLockFreeQueue *)value;
3082 MonoProfiler *prof = (MonoProfiler *)userdata;
3085 const char *assembly_name;
3086 int number_of_methods, partially_covered;
3087 guint fully_covered;
3088 LogBuffer *logbuffer;
3091 image = mono_class_get_image (klass);
3092 assembly_name = mono_image_get_name (image);
3093 class_name = mono_type_get_name (mono_class_get_type (klass));
3095 assembly_name = assembly_name ? assembly_name : "";
3096 number_of_methods = mono_class_num_methods (klass);
3097 fully_covered = count_queue (class_methods);
3098 /* We don't handle partial covered yet */
3099 partially_covered = 0;
3103 size += strlen (assembly_name) + 1;
3104 size += strlen (class_name) + 1;
3105 size += 10 + 10 + 10; /* number_of_methods, fully_covered, partially_covered */
3107 logbuffer = ensure_logbuf (size);
3109 ENTER_LOG (logbuffer, "coverage-class");
3110 emit_byte (logbuffer, TYPE_COVERAGE_CLASS | TYPE_COVERAGE);
3111 emit_string (logbuffer, assembly_name, strlen (assembly_name) + 1);
3112 emit_string (logbuffer, class_name, strlen (class_name) + 1);
3113 emit_uvalue (logbuffer, number_of_methods);
3114 emit_uvalue (logbuffer, fully_covered);
3115 emit_uvalue (logbuffer, partially_covered);
3116 EXIT_LOG (logbuffer);
3118 safe_send (prof, logbuffer);
3120 g_free (class_name);
3124 get_coverage_for_image (MonoImage *image, int *number_of_methods, guint *fully_covered, int *partially_covered)
3126 MonoLockFreeQueue *image_methods = mono_conc_hashtable_lookup (image_to_methods, image);
3128 *number_of_methods = mono_image_get_table_rows (image, MONO_TABLE_METHOD);
3130 *fully_covered = count_queue (image_methods);
3134 // FIXME: We don't handle partially covered yet.
3135 *partially_covered = 0;
3139 build_assembly_buffer (gpointer key, gpointer value, gpointer userdata)
3141 MonoAssembly *assembly = (MonoAssembly *)value;
3142 MonoProfiler *prof = (MonoProfiler *)userdata;
3143 MonoImage *image = mono_assembly_get_image (assembly);
3144 LogBuffer *logbuffer;
3145 const char *name, *guid, *filename;
3147 int number_of_methods = 0, partially_covered = 0;
3148 guint fully_covered = 0;
3150 name = mono_image_get_name (image);
3151 guid = mono_image_get_guid (image);
3152 filename = mono_image_get_filename (image);
3154 name = name ? name : "";
3155 guid = guid ? guid : "";
3156 filename = filename ? filename : "";
3158 get_coverage_for_image (image, &number_of_methods, &fully_covered, &partially_covered);
3162 size += strlen (name) + 1;
3163 size += strlen (guid) + 1;
3164 size += strlen (filename) + 1;
3165 size += 10 + 10 + 10; /* number_of_methods, fully_covered, partially_covered */
3166 logbuffer = ensure_logbuf (size);
3168 ENTER_LOG (logbuffer, "coverage-assemblies");
3169 emit_byte (logbuffer, TYPE_COVERAGE_ASSEMBLY | TYPE_COVERAGE);
3170 emit_string (logbuffer, name, strlen (name) + 1);
3171 emit_string (logbuffer, guid, strlen (guid) + 1);
3172 emit_string (logbuffer, filename, strlen (filename) + 1);
3173 emit_uvalue (logbuffer, number_of_methods);
3174 emit_uvalue (logbuffer, fully_covered);
3175 emit_uvalue (logbuffer, partially_covered);
3176 EXIT_LOG (logbuffer);
3178 safe_send (prof, logbuffer);
3182 dump_coverage (MonoProfiler *prof)
3184 if (!coverage_initialized)
3187 COVERAGE_DEBUG(fprintf (stderr, "Coverage: Started dump\n");)
3190 mono_conc_hashtable_foreach (coverage_assemblies, build_assembly_buffer, prof);
3191 mono_conc_hashtable_foreach (coverage_classes, build_class_buffer, prof);
3192 mono_conc_hashtable_foreach (coverage_methods, build_method_buffer, prof);
3194 COVERAGE_DEBUG(fprintf (stderr, "Coverage: Finished dump\n");)
3198 process_method_enter_coverage (MonoProfiler *prof, MonoMethod *method)
3203 if (!coverage_initialized)
3206 klass = mono_method_get_class (method);
3207 image = mono_class_get_image (klass);
3209 if (mono_conc_hashtable_lookup (suppressed_assemblies, (gpointer) mono_image_get_name (image)))
3212 mono_conc_hashtable_insert (entered_methods, method, method);
3215 static MonoLockFreeQueueNode *
3216 create_method_node (MonoMethod *method)
3218 MethodNode *node = g_malloc (sizeof (MethodNode));
3219 mono_lock_free_queue_node_init ((MonoLockFreeQueueNode *) node, FALSE);
3220 node->method = method;
3222 return (MonoLockFreeQueueNode *) node;
3226 coverage_filter (MonoProfiler *prof, MonoMethod *method)
3230 MonoAssembly *assembly;
3231 MonoMethodHeader *header;
3232 guint32 iflags, flags, code_size;
3233 char *fqn, *classname;
3234 gboolean has_positive, found;
3235 MonoLockFreeQueue *image_methods, *class_methods;
3236 MonoLockFreeQueueNode *node;
3238 if (!coverage_initialized)
3241 COVERAGE_DEBUG(fprintf (stderr, "Coverage filter for %s\n", mono_method_get_name (method));)
3243 flags = mono_method_get_flags (method, &iflags);
3244 if ((iflags & 0x1000 /*METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL*/) ||
3245 (flags & 0x2000 /*METHOD_ATTRIBUTE_PINVOKE_IMPL*/)) {
3246 COVERAGE_DEBUG(fprintf (stderr, " Internal call or pinvoke - ignoring\n");)
3250 // Don't need to do anything else if we're already tracking this method
3251 if (mono_conc_hashtable_lookup (coverage_methods, method)) {
3252 COVERAGE_DEBUG(fprintf (stderr, " Already tracking\n");)
3256 klass = mono_method_get_class (method);
3257 image = mono_class_get_image (klass);
3259 // Don't handle coverage for the core assemblies
3260 if (mono_conc_hashtable_lookup (suppressed_assemblies, (gpointer) mono_image_get_name (image)) != NULL)
3263 if (prof->coverage_filters) {
3264 /* Check already filtered classes first */
3265 if (mono_conc_hashtable_lookup (filtered_classes, klass)) {
3266 COVERAGE_DEBUG(fprintf (stderr, " Already filtered\n");)
3270 classname = mono_type_get_name (mono_class_get_type (klass));
3272 fqn = g_strdup_printf ("[%s]%s", mono_image_get_name (image), classname);
3274 COVERAGE_DEBUG(fprintf (stderr, " Looking for %s in filter\n", fqn);)
3275 // Check positive filters first
3276 has_positive = FALSE;
3278 for (guint i = 0; i < prof->coverage_filters->len; ++i) {
3279 char *filter = g_ptr_array_index (prof->coverage_filters, i);
3281 if (filter [0] == '+') {
3282 filter = &filter [1];
3284 COVERAGE_DEBUG(fprintf (stderr, " Checking against +%s ...", filter);)
3286 if (strstr (fqn, filter) != NULL) {
3287 COVERAGE_DEBUG(fprintf (stderr, "matched\n");)
3290 COVERAGE_DEBUG(fprintf (stderr, "no match\n");)
3292 has_positive = TRUE;
3296 if (has_positive && !found) {
3297 COVERAGE_DEBUG(fprintf (stderr, " Positive match was not found\n");)
3299 mono_conc_hashtable_insert (filtered_classes, klass, klass);
3306 for (guint i = 0; i < prof->coverage_filters->len; ++i) {
3307 // FIXME: Is substring search sufficient?
3308 char *filter = g_ptr_array_index (prof->coverage_filters, i);
3309 if (filter [0] == '+')
3313 filter = &filter [1];
3314 COVERAGE_DEBUG(fprintf (stderr, " Checking against -%s ...", filter);)
3316 if (strstr (fqn, filter) != NULL) {
3317 COVERAGE_DEBUG(fprintf (stderr, "matched\n");)
3319 mono_conc_hashtable_insert (filtered_classes, klass, klass);
3325 COVERAGE_DEBUG(fprintf (stderr, "no match\n");)
3333 COVERAGE_DEBUG(fprintf (stderr, " Handling coverage for %s\n", mono_method_get_name (method));)
3334 header = mono_method_get_header (method);
3336 mono_method_header_get_code (header, &code_size, NULL);
3338 assembly = mono_image_get_assembly (image);
3340 mono_conc_hashtable_insert (coverage_methods, method, method);
3341 mono_conc_hashtable_insert (coverage_assemblies, assembly, assembly);
3343 image_methods = mono_conc_hashtable_lookup (image_to_methods, image);
3345 if (image_methods == NULL) {
3346 image_methods = g_malloc (sizeof (MonoLockFreeQueue));
3347 mono_lock_free_queue_init (image_methods);
3348 mono_conc_hashtable_insert (image_to_methods, image, image_methods);
3351 node = create_method_node (method);
3352 mono_lock_free_queue_enqueue (image_methods, node);
3354 class_methods = mono_conc_hashtable_lookup (coverage_classes, klass);
3356 if (class_methods == NULL) {
3357 class_methods = g_malloc (sizeof (MonoLockFreeQueue));
3358 mono_lock_free_queue_init (class_methods);
3359 mono_conc_hashtable_insert (coverage_classes, klass, class_methods);
3362 node = create_method_node (method);
3363 mono_lock_free_queue_enqueue (class_methods, node);
3368 #define LINE_BUFFER_SIZE 4096
3369 /* Max file limit of 128KB */
3370 #define MAX_FILE_SIZE 128 * 1024
3372 get_file_content (FILE *stream)
3377 int res, offset = 0;
3379 res = fseek (stream, 0, SEEK_END);
3383 filesize = ftell (stream);
3387 res = fseek (stream, 0, SEEK_SET);
3391 if (filesize > MAX_FILE_SIZE)
3394 buffer = g_malloc ((filesize + 1) * sizeof (char));
3395 while ((bytes_read = fread (buffer + offset, 1, LINE_BUFFER_SIZE, stream)) > 0)
3396 offset += bytes_read;
3398 /* NULL terminate our buffer */
3399 buffer[filesize] = '\0';
3404 get_next_line (char *contents, char **next_start)
3408 if (p == NULL || *p == '\0') {
3413 while (*p != '\n' && *p != '\0')
3418 *next_start = p + 1;
3426 init_suppressed_assemblies (void)
3432 mono_mutex_init (&suppressed_assemblies_mutex);
3433 suppressed_assemblies = mono_conc_hashtable_new (&suppressed_assemblies_mutex, g_str_hash, g_str_equal);
3434 sa_file = fopen (SUPPRESSION_DIR "/mono-profiler-log.suppression", "r");
3435 if (sa_file == NULL)
3438 /* Don't need to free @content as it is referred to by the lines stored in @suppressed_assemblies */
3439 content = get_file_content (sa_file);
3440 if (content == NULL) {
3441 g_error ("mono-profiler-log.suppression is greater than 128kb - aborting\n");
3444 while ((line = get_next_line (content, &content))) {
3445 line = g_strchomp (g_strchug (line));
3446 mono_conc_hashtable_insert (suppressed_assemblies, line, line);
3452 static MonoConcurrentHashTable *
3453 init_hashtable (mono_mutex_t *mutex)
3455 mono_mutex_init (mutex);
3456 return mono_conc_hashtable_new (mutex, NULL, NULL);
3460 destroy_hashtable (MonoConcurrentHashTable *hashtable, mono_mutex_t *mutex)
3462 mono_conc_hashtable_destroy (hashtable);
3463 mono_mutex_destroy (mutex);
3466 #endif /* DISABLE_HELPER_THREAD */
3469 coverage_init (MonoProfiler *prof)
3471 #ifndef DISABLE_HELPER_THREAD
3472 assert (!coverage_initialized);
3474 COVERAGE_DEBUG(fprintf (stderr, "Coverage initialized\n");)
3476 coverage_methods = init_hashtable (&coverage_methods_mutex);
3477 coverage_assemblies = init_hashtable (&coverage_assemblies_mutex);
3478 coverage_classes = init_hashtable (&coverage_classes_mutex);
3479 filtered_classes = init_hashtable (&filtered_classes_mutex);
3480 entered_methods = init_hashtable (&entered_methods_mutex);
3481 image_to_methods = init_hashtable (&image_to_methods_mutex);
3482 init_suppressed_assemblies ();
3484 coverage_initialized = TRUE;
3485 #endif /* DISABLE_HELPER_THREAD */
3489 log_shutdown (MonoProfiler *prof)
3494 #ifndef DISABLE_HELPER_THREAD
3495 counters_and_perfcounters_sample (prof);
3497 dump_coverage (prof);
3499 if (prof->command_port) {
3501 ign_res (write (prof->pipes [1], &c, 1));
3502 pthread_join (prof->helper_thread, &res);
3508 for (i = 0; i < num_perf; ++i)
3509 read_perf_mmap (prof, i);
3513 g_ptr_array_free (prof->sorted_sample_events, TRUE);
3515 if (TLS_GET (LogBuffer, tlsbuffer))
3516 send_buffer (prof, TLS_GET (GPtrArray, tlsmethodlist), TLS_GET (LogBuffer, tlsbuffer));
3518 TLS_SET (tlsbuffer, NULL);
3519 TLS_SET (tlsmethodlist, NULL);
3521 InterlockedWrite (&prof->run_writer_thread, 0);
3522 pthread_join (prof->writer_thread, &res);
3524 #if defined (HAVE_SYS_ZLIB)
3526 gzclose (prof->gzfile);
3528 if (prof->pipe_output)
3529 pclose (prof->file);
3531 fclose (prof->file);
3533 destroy_hashtable (prof->method_table, &prof->method_table_mutex);
3535 if (coverage_initialized) {
3536 destroy_hashtable (coverage_methods, &coverage_methods_mutex);
3537 destroy_hashtable (coverage_assemblies, &coverage_assemblies_mutex);
3538 destroy_hashtable (coverage_classes, &coverage_classes_mutex);
3539 destroy_hashtable (filtered_classes, &filtered_classes_mutex);
3540 destroy_hashtable (entered_methods, &entered_methods_mutex);
3541 destroy_hashtable (image_to_methods, &image_to_methods_mutex);
3542 destroy_hashtable (suppressed_assemblies, &suppressed_assemblies_mutex);
3549 new_filename (const char* filename)
3551 time_t t = time (NULL);
3552 int pid = process_id ();
3557 int count_dates = 0;
3561 for (p = filename; *p; p++) {
3572 if (!count_dates && !count_pids)
3573 return pstrdup (filename);
3574 snprintf (pid_buf, sizeof (pid_buf), "%d", pid);
3576 snprintf (time_buf, sizeof (time_buf), "%d%02d%02d%02d%02d%02d",
3577 1900 + ts->tm_year, 1 + ts->tm_mon, ts->tm_mday, ts->tm_hour, ts->tm_min, ts->tm_sec);
3578 s_date = strlen (time_buf);
3579 s_pid = strlen (pid_buf);
3580 d = res = malloc (strlen (filename) + s_date * count_dates + s_pid * count_pids);
3581 for (p = filename; *p; p++) {
3588 strcpy (d, time_buf);
3591 } else if (*p == 'p') {
3592 strcpy (d, pid_buf);
3595 } else if (*p == '%') {
3607 //this is exposed by the JIT, but it's not meant to be a supported API for now.
3608 extern void mono_threads_attach_tools_thread (void);
3610 #ifndef DISABLE_HELPER_THREAD
3613 helper_thread (void* arg)
3615 MonoProfiler* prof = arg;
3619 MonoThread *thread = NULL;
3621 mono_threads_attach_tools_thread ();
3622 //fprintf (stderr, "Server listening\n");
3623 command_socket = -1;
3629 FD_SET (prof->server_socket, &rfds);
3630 max_fd = prof->server_socket;
3631 FD_SET (prof->pipes [0], &rfds);
3632 if (max_fd < prof->pipes [0])
3633 max_fd = prof->pipes [0];
3634 if (command_socket >= 0) {
3635 FD_SET (command_socket, &rfds);
3636 if (max_fd < command_socket)
3637 max_fd = command_socket;
3642 for ( i = 0; i < num_perf; ++i) {
3643 if (perf_data [i].perf_fd < 0)
3645 FD_SET (perf_data [i].perf_fd, &rfds);
3646 if (max_fd < perf_data [i].perf_fd)
3647 max_fd = perf_data [i].perf_fd;
3652 counters_and_perfcounters_sample (prof);
3656 len = select (max_fd + 1, &rfds, NULL, NULL, &tv);
3662 g_warning ("Error in proflog server: %s", strerror (errno));
3666 if (FD_ISSET (prof->pipes [0], &rfds)) {
3668 int r = read (prof->pipes [0], &c, 1);
3669 if (r == 1 && c == 0) {
3670 StatBuffer *sbufbase = prof->stat_buffers;
3672 if (!sbufbase->next)
3674 sbuf = sbufbase->next->next;
3675 sbufbase->next->next = NULL;
3677 fprintf (stderr, "stat buffer dump\n");
3679 dump_sample_hits (prof, sbuf);
3680 free_buffer (sbuf, sbuf->size);
3681 safe_send (prof, ensure_logbuf (0));
3685 /* time to shut down */
3686 dump_sample_hits (prof, prof->stat_buffers);
3688 mono_thread_detach (thread);
3690 fprintf (stderr, "helper shutdown\n");
3694 for ( i = 0; i < num_perf; ++i) {
3695 if (perf_data [i].perf_fd < 0)
3697 if (FD_ISSET (perf_data [i].perf_fd, &rfds))
3698 read_perf_mmap (prof, i);
3702 safe_send (prof, ensure_logbuf (0));
3708 for ( i = 0; i < num_perf; ++i) {
3709 if (perf_data [i].perf_fd < 0)
3711 if (FD_ISSET (perf_data [i].perf_fd, &rfds)) {
3712 read_perf_mmap (prof, i);
3713 safe_send (prof, ensure_logbuf (0));
3718 if (command_socket >= 0 && FD_ISSET (command_socket, &rfds)) {
3719 len = read (command_socket, buf, sizeof (buf) - 1);
3723 close (command_socket);
3724 command_socket = -1;
3728 if (strcmp (buf, "heapshot\n") == 0) {
3729 heapshot_requested = 1;
3730 //fprintf (stderr, "perform heapshot\n");
3731 if (InterlockedRead (&runtime_inited) && !thread) {
3732 thread = mono_thread_attach (mono_get_root_domain ());
3733 /*fprintf (stderr, "attached\n");*/
3736 process_requests (prof);
3737 mono_thread_detach (thread);
3743 if (!FD_ISSET (prof->server_socket, &rfds)) {
3746 command_socket = accept (prof->server_socket, NULL, NULL);
3747 if (command_socket < 0)
3749 //fprintf (stderr, "Accepted connection\n");
3755 start_helper_thread (MonoProfiler* prof)
3757 struct sockaddr_in server_address;
3760 if (pipe (prof->pipes) < 0) {
3761 fprintf (stderr, "Cannot create pipe\n");
3764 prof->server_socket = socket (PF_INET, SOCK_STREAM, 0);
3765 if (prof->server_socket < 0) {
3766 fprintf (stderr, "Cannot create server socket\n");
3769 memset (&server_address, 0, sizeof (server_address));
3770 server_address.sin_family = AF_INET;
3771 server_address.sin_addr.s_addr = INADDR_ANY;
3772 server_address.sin_port = htons (prof->command_port);
3773 if (bind (prof->server_socket, (struct sockaddr *) &server_address, sizeof (server_address)) < 0) {
3774 fprintf (stderr, "Cannot bind server socket, port: %d: %s\n", prof->command_port, strerror (errno));
3775 close (prof->server_socket);
3778 if (listen (prof->server_socket, 1) < 0) {
3779 fprintf (stderr, "Cannot listen server socket\n");
3780 close (prof->server_socket);
3783 slen = sizeof (server_address);
3784 if (getsockname (prof->server_socket, (struct sockaddr *)&server_address, &slen) == 0) {
3785 prof->command_port = ntohs (server_address.sin_port);
3786 /*fprintf (stderr, "Assigned server port: %d\n", prof->command_port);*/
3789 r = pthread_create (&prof->helper_thread, NULL, helper_thread, prof);
3791 close (prof->server_socket);
3799 writer_thread (void *arg)
3801 MonoProfiler *prof = arg;
3803 mono_threads_attach_tools_thread ();
3807 while (InterlockedRead (&prof->run_writer_thread)) {
3808 WriterQueueEntry *entry;
3810 while ((entry = (WriterQueueEntry *) mono_lock_free_queue_dequeue (&prof->writer_queue))) {
3811 LogBuffer *method_buffer = NULL;
3812 gboolean new_methods = FALSE;
3814 if (entry->methods->len)
3815 method_buffer = create_buffer ();
3818 * Encode the method events in a temporary log buffer that we
3819 * flush to disk before the main buffer, ensuring that all
3820 * methods have metadata emitted before they're referenced.
3822 for (guint i = 0; i < entry->methods->len; i++) {
3823 MethodInfo *info = g_ptr_array_index (entry->methods, i);
3825 if (mono_conc_hashtable_lookup (prof->method_table, info->method))
3831 * Other threads use this hash table to get a general
3832 * idea of whether a method has already been emitted to
3833 * the stream. Due to the way we add to this table, it
3834 * can easily happen that multiple threads queue up the
3835 * same methods, but that's OK since eventually all
3836 * methods will be in this table and the thread-local
3837 * method lists will just be empty for the rest of the
3840 mono_conc_hashtable_insert (prof->method_table, info->method, info->method);
3842 char *name = mono_method_full_name (info->method, 1);
3843 int nlen = strlen (name) + 1;
3844 uint64_t now = current_time ();
3846 method_buffer = ensure_logbuf_inner (method_buffer, 1 + 10 + 10 + 10 + 10 + nlen);
3848 emit_byte (method_buffer, TYPE_JIT | TYPE_METHOD);
3849 emit_time (method_buffer, now);
3850 emit_method_inner (method_buffer, info->method);
3851 emit_ptr (method_buffer, mono_jit_info_get_code_start (info->ji));
3852 emit_value (method_buffer, mono_jit_info_get_code_size (info->ji));
3854 memcpy (method_buffer->data, name, nlen);
3855 method_buffer->data += nlen;
3861 g_ptr_array_free (entry->methods, TRUE);
3864 dump_buffer (prof, method_buffer);
3865 else if (method_buffer)
3866 free_buffer (method_buffer, method_buffer->size);
3868 dump_buffer (prof, entry->buffer);
3878 start_writer_thread (MonoProfiler* prof)
3880 InterlockedWrite (&prof->run_writer_thread, 1);
3882 return !pthread_create (&prof->writer_thread, NULL, writer_thread, prof);
3886 runtime_initialized (MonoProfiler *profiler)
3888 #ifndef DISABLE_HELPER_THREAD
3889 if (hs_mode_ondemand || need_helper_thread) {
3890 if (!start_helper_thread (profiler))
3891 profiler->command_port = 0;
3895 start_writer_thread (profiler);
3897 InterlockedWrite (&runtime_inited, 1);
3898 #ifndef DISABLE_HELPER_THREAD
3899 counters_init (profiler);
3900 counters_sample (profiler, 0);
3902 /* ensure the main thread data and startup are available soon */
3903 safe_send (profiler, ensure_logbuf (0));
3906 static MonoProfiler*
3907 create_profiler (const char *filename, GPtrArray *filters)
3911 int force_delete = 0;
3912 prof = calloc (1, sizeof (MonoProfiler));
3914 prof->command_port = command_port;
3915 if (filename && *filename == '-') {
3921 filename = "|mprof-report -";
3923 filename = "output.mlpd";
3924 nf = (char*)filename;
3926 nf = new_filename (filename);
3928 int s = strlen (nf) + 32;
3929 char *p = malloc (s);
3930 snprintf (p, s, "|mprof-report '--out=%s' -", nf);
3936 prof->file = popen (nf + 1, "w");
3937 prof->pipe_output = 1;
3938 } else if (*nf == '#') {
3939 int fd = strtol (nf + 1, NULL, 10);
3940 prof->file = fdopen (fd, "a");
3944 prof->file = fopen (nf, "wb");
3947 fprintf (stderr, "Cannot create profiler output: %s\n", nf);
3950 #if defined (HAVE_SYS_ZLIB)
3952 prof->gzfile = gzdopen (fileno (prof->file), "wb");
3955 if (sample_type && !do_mono_sample)
3956 need_helper_thread = setup_perf_event ();
3958 /* FIXME: warn if different freq or sample type */
3962 if (do_mono_sample) {
3963 prof->stat_buffers = create_stat_buffer ();
3964 need_helper_thread = 1;
3966 if (do_counters && !need_helper_thread) {
3967 need_helper_thread = 1;
3970 prof->sorted_sample_events = g_ptr_array_sized_new (BUFFER_SIZE / SAMPLE_EVENT_SIZE_IN_SLOTS (0));
3972 #ifdef DISABLE_HELPER_THREAD
3973 if (hs_mode_ondemand)
3974 fprintf (stderr, "Ondemand heapshot unavailable on this arch.\n");
3977 fprintf (stderr, "Coverage unavailable on this arch.\n");
3981 mono_lock_free_queue_init (&prof->writer_queue);
3982 mono_mutex_init (&prof->method_table_mutex);
3983 prof->method_table = mono_conc_hashtable_new (&prof->method_table_mutex, NULL, NULL);
3986 coverage_init (prof);
3987 prof->coverage_filters = filters;
3989 prof->startup_time = current_time ();
3996 printf ("Log profiler version %d.%d (format: %d)\n", LOG_VERSION_MAJOR, LOG_VERSION_MINOR, LOG_DATA_VERSION);
3997 printf ("Usage: mono --profile=log[:OPTION1[,OPTION2...]] program.exe\n");
3998 printf ("Options:\n");
3999 printf ("\thelp show this usage info\n");
4000 printf ("\t[no]alloc enable/disable recording allocation info\n");
4001 printf ("\t[no]calls enable/disable recording enter/leave method events\n");
4002 printf ("\theapshot[=MODE] record heap shot info (by default at each major collection)\n");
4003 printf ("\t MODE: every XXms milliseconds, every YYgc collections, ondemand\n");
4004 printf ("\tcounters sample counters every 1s\n");
4005 printf ("\tsample[=TYPE] use statistical sampling mode (by default cycles/1000)\n");
4006 printf ("\t TYPE: cycles,instr,cacherefs,cachemiss,branches,branchmiss\n");
4007 printf ("\t TYPE can be followed by /FREQUENCY\n");
4008 printf ("\ttime=fast use a faster (but more inaccurate) timer\n");
4009 printf ("\tmaxframes=NUM collect up to NUM stack frames\n");
4010 printf ("\tcalldepth=NUM ignore method events for call chain depth bigger than NUM\n");
4011 printf ("\toutput=FILENAME write the data to file FILENAME (-FILENAME to overwrite)\n");
4012 printf ("\toutput=|PROGRAM write the data to the stdin of PROGRAM\n");
4013 printf ("\t %%t is subtituted with date and time, %%p with the pid\n");
4014 printf ("\treport create a report instead of writing the raw data to a file\n");
4015 printf ("\tzip compress the output data\n");
4016 printf ("\tport=PORTNUM use PORTNUM for the listening command server\n");
4017 printf ("\tcoverage enable collection of code coverage data\n");
4018 printf ("\tcovfilter=ASSEMBLY add an assembly to the code coverage filters\n");
4019 printf ("\t add a + to include the assembly or a - to exclude it\n");
4020 printf ("\t filter=-mscorlib\n");
4021 printf ("\tcovfilter-file=FILE use FILE to generate the list of assemblies to be filtered\n");
4027 match_option (const char* p, const char *opt, char **rval)
4029 int len = strlen (opt);
4030 if (strncmp (p, opt, len) == 0) {
4032 if (p [len] == '=' && p [len + 1]) {
4033 const char *opt = p + len + 1;
4034 const char *end = strchr (opt, ',');
4042 val = malloc (l + 1);
4043 memcpy (val, opt, l);
4048 if (p [len] == 0 || p [len] == ',') {
4050 return p + len + (p [len] == ',');
4068 static const SampleMode sample_modes [] = {
4069 {"cycles", SAMPLE_CYCLES},
4070 {"instr", SAMPLE_INSTRUCTIONS},
4071 {"cachemiss", SAMPLE_CACHE_MISSES},
4072 {"cacherefs", SAMPLE_CACHE_REFS},
4073 {"branches", SAMPLE_BRANCHES},
4074 {"branchmiss", SAMPLE_BRANCH_MISSES},
4079 set_sample_mode (char* val, int allow_empty)
4082 char *maybe_freq = NULL;
4084 const SampleMode *smode = sample_modes;
4085 #ifndef USE_PERF_EVENTS
4088 if (allow_empty && !val) {
4089 sample_type = SAMPLE_CYCLES;
4093 if (strcmp (val, "mono") == 0) {
4095 sample_type = SAMPLE_CYCLES;
4099 for (smode = sample_modes; smode->name; smode++) {
4100 int l = strlen (smode->name);
4101 if (strncmp (val, smode->name, l) == 0) {
4102 sample_type = smode->sample_mode;
4103 maybe_freq = val + l;
4109 if (*maybe_freq == '/') {
4110 count = strtoul (maybe_freq + 1, &end, 10);
4111 if (maybe_freq + 1 == end)
4113 sample_freq = count;
4114 } else if (*maybe_freq != 0) {
4123 set_hsmode (char* val, int allow_empty)
4127 if (allow_empty && !val)
4129 if (strcmp (val, "ondemand") == 0) {
4130 hs_mode_ondemand = 1;
4134 count = strtoul (val, &end, 10);
4137 if (strcmp (end, "ms") == 0)
4139 else if (strcmp (end, "gc") == 0)
4147 * declaration to silence the compiler: this is the entry point that
4148 * mono will load from the shared library and call.
4151 mono_profiler_startup (const char *desc);
4154 mono_profiler_startup_log (const char *desc);
4157 * this is the entry point that will be used when the profiler
4158 * is embedded inside the main executable.
4161 mono_profiler_startup_log (const char *desc)
4163 mono_profiler_startup (desc);
4167 mono_profiler_startup (const char *desc)
4170 GPtrArray *filters = NULL;
4171 char *filename = NULL;
4175 int calls_enabled = 0;
4176 int allocs_enabled = 0;
4177 int only_counters = 0;
4178 int only_coverage = 0;
4179 int events = MONO_PROFILE_GC|MONO_PROFILE_ALLOCATIONS|
4180 MONO_PROFILE_GC_MOVES|MONO_PROFILE_CLASS_EVENTS|MONO_PROFILE_THREADS|
4181 MONO_PROFILE_ENTER_LEAVE|MONO_PROFILE_JIT_COMPILATION|MONO_PROFILE_EXCEPTIONS|
4182 MONO_PROFILE_MONITOR_EVENTS|MONO_PROFILE_MODULE_EVENTS|MONO_PROFILE_GC_ROOTS|
4183 MONO_PROFILE_INS_COVERAGE|MONO_PROFILE_APPDOMAIN_EVENTS|MONO_PROFILE_CONTEXT_EVENTS|
4184 MONO_PROFILE_ASSEMBLY_EVENTS;
4187 if (strncmp (p, "log", 3))
4192 for (; *p; p = opt) {
4198 if ((opt = match_option (p, "help", NULL)) != p) {
4202 if ((opt = match_option (p, "calls", NULL)) != p) {
4206 if ((opt = match_option (p, "nocalls", NULL)) != p) {
4207 events &= ~MONO_PROFILE_ENTER_LEAVE;
4211 if ((opt = match_option (p, "alloc", NULL)) != p) {
4215 if ((opt = match_option (p, "noalloc", NULL)) != p) {
4216 events &= ~MONO_PROFILE_ALLOCATIONS;
4219 if ((opt = match_option (p, "time", &val)) != p) {
4220 if (strcmp (val, "fast") == 0)
4222 else if (strcmp (val, "null") == 0)
4229 if ((opt = match_option (p, "report", NULL)) != p) {
4233 if ((opt = match_option (p, "debug", NULL)) != p) {
4237 if ((opt = match_option (p, "sampling-real", NULL)) != p) {
4238 sampling_mode = MONO_PROFILER_STAT_MODE_REAL;
4241 if ((opt = match_option (p, "sampling-process", NULL)) != p) {
4242 sampling_mode = MONO_PROFILER_STAT_MODE_PROCESS;
4245 if ((opt = match_option (p, "heapshot", &val)) != p) {
4246 events &= ~MONO_PROFILE_ALLOCATIONS;
4247 events &= ~MONO_PROFILE_ENTER_LEAVE;
4250 set_hsmode (val, 1);
4253 if ((opt = match_option (p, "sample", &val)) != p) {
4254 events &= ~MONO_PROFILE_ALLOCATIONS;
4255 events &= ~MONO_PROFILE_ENTER_LEAVE;
4257 set_sample_mode (val, 1);
4260 if ((opt = match_option (p, "hsmode", &val)) != p) {
4261 fprintf (stderr, "The hsmode profiler option is obsolete, use heapshot=MODE.\n");
4262 set_hsmode (val, 0);
4265 if ((opt = match_option (p, "zip", NULL)) != p) {
4269 if ((opt = match_option (p, "output", &val)) != p) {
4273 if ((opt = match_option (p, "port", &val)) != p) {
4275 command_port = strtoul (val, &end, 10);
4279 if ((opt = match_option (p, "maxframes", &val)) != p) {
4281 num_frames = strtoul (val, &end, 10);
4282 if (num_frames > MAX_FRAMES)
4283 num_frames = MAX_FRAMES;
4285 notraces = num_frames == 0;
4288 if ((opt = match_option (p, "calldepth", &val)) != p) {
4290 max_call_depth = strtoul (val, &end, 10);
4294 if ((opt = match_option (p, "counters", NULL)) != p) {
4298 if ((opt = match_option (p, "countersonly", NULL)) != p) {
4302 if ((opt = match_option (p, "coverage", NULL)) != p) {
4304 events |= MONO_PROFILE_ENTER_LEAVE;
4305 debug_coverage = (g_getenv ("MONO_PROFILER_DEBUG_COVERAGE") != NULL);
4308 if ((opt = match_option (p, "onlycoverage", NULL)) != p) {
4312 if ((opt = match_option (p, "covfilter-file", &val)) != p) {
4314 char *line, *content;
4316 if (filters == NULL)
4317 filters = g_ptr_array_new ();
4319 filter_file = fopen (val, "r");
4320 if (filter_file == NULL) {
4321 fprintf (stderr, "Unable to open %s\n", val);
4325 /* Don't need to free content as it is referred to by the lines stored in @filters */
4326 content = get_file_content (filter_file);
4327 if (content == NULL)
4328 fprintf (stderr, "WARNING: %s is greater than 128kb - ignoring\n", val);
4330 while ((line = get_next_line (content, &content)))
4331 g_ptr_array_add (filters, g_strchug (g_strchomp (line)));
4333 fclose (filter_file);
4336 if ((opt = match_option (p, "covfilter", &val)) != p) {
4337 if (filters == NULL)
4338 filters = g_ptr_array_new ();
4340 g_ptr_array_add (filters, val);
4348 if (calls_enabled) {
4349 events |= MONO_PROFILE_ENTER_LEAVE;
4353 events |= MONO_PROFILE_ALLOCATIONS;
4357 events = MONO_PROFILE_ENTER_LEAVE | MONO_PROFILE_INS_COVERAGE;
4359 utils_init (fast_time);
4361 prof = create_profiler (filename, filters);
4366 mono_profiler_install (prof, log_shutdown);
4367 mono_profiler_install_gc (gc_event, gc_resize);
4368 mono_profiler_install_allocation (gc_alloc);
4369 mono_profiler_install_gc_moves (gc_moves);
4370 mono_profiler_install_gc_roots (gc_handle, gc_roots);
4371 mono_profiler_install_appdomain (NULL, domain_loaded, NULL, domain_unloaded);
4372 mono_profiler_install_appdomain_name (domain_name);
4373 mono_profiler_install_context (context_loaded, context_unloaded);
4374 mono_profiler_install_class (NULL, class_loaded, NULL, class_unloaded);
4375 mono_profiler_install_module (NULL, image_loaded, NULL, image_unloaded);
4376 mono_profiler_install_assembly (NULL, assembly_loaded, NULL, assembly_unloaded);
4377 mono_profiler_install_thread (thread_start, thread_end);
4378 mono_profiler_install_thread_name (thread_name);
4379 mono_profiler_install_enter_leave (method_enter, method_leave);
4380 mono_profiler_install_jit_end (method_jitted);
4381 mono_profiler_install_code_buffer_new (code_buffer_new);
4382 mono_profiler_install_exception (throw_exc, method_exc_leave, clause_exc);
4383 mono_profiler_install_monitor (monitor_event);
4384 mono_profiler_install_runtime_initialized (runtime_initialized);
4386 mono_profiler_install_coverage_filter (coverage_filter);
4388 if (do_mono_sample && sample_type == SAMPLE_CYCLES && !only_counters) {
4389 events |= MONO_PROFILE_STATISTICAL;
4390 mono_profiler_set_statistical_mode (sampling_mode, 1000000 / sample_freq);
4391 mono_profiler_install_statistical (mono_sample_hit);
4394 mono_profiler_set_events (events);
4396 TLS_INIT (tlsbuffer);
4397 TLS_INIT (tlsmethodlist);