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
);