2 * coverage.c: mono coverage profiler
5 * Paolo Molaro (lupus@ximian.com)
6 * Alex Rønne Petersen (alexrp@xamarin.com)
7 * Ludovic Henry (ludovic@xamarin.com)
9 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
13 * The Coverage XML output schema
23 * <coverage> - The root element of the documentation. It can contain any number of
24 * <assembly>, <class> or <method> elements.
26 * - version: The version number for the file format - (eg: "0.3")
27 * <assembly> - Contains data about assemblies. Has no child elements
29 * - name: The name of the assembly - (eg: "System.Xml")
30 * - guid: The GUID of the assembly
31 * - filename: The filename of the assembly
32 * - method-count: The number of methods in the assembly
33 * - full: The number of fully covered methods
34 * - partial: The number of partially covered methods
35 * <class> - Contains data about classes. Has no child elements
37 * - name: The name of the class
38 * - method-count: The number of methods in the class
39 * - full: The number of fully covered methods
40 * - partial: The number of partially covered methods
41 * <method> - Contains data about methods. Can contain any number of <statement> elements
43 * - assembly: The name of the parent assembly
44 * - class: The name of the parent class
45 * - name: The name of the method, with all it's parameters
46 * - filename: The name of the source file containing this method
48 * <statement> - Contains data about IL statements. Has no child elements
50 * - offset: The offset of the statement in the IL code
51 * - counter: 1 if the line was covered, 0 if it was not
52 * - line: The line number in the parent method's file
53 * - column: The column on the line
68 #ifdef HAVE_SYS_MMAN_H
71 #if defined (HAVE_SYS_ZLIB)
75 #include <mono/metadata/assembly.h>
76 #include <mono/metadata/debug-helpers.h>
77 #include <mono/metadata/profiler.h>
78 #include <mono/metadata/tabledefs.h>
79 #include <mono/metadata/metadata-internals.h>
81 #include <mono/utils/atomic.h>
82 #include <mono/utils/hazard-pointer.h>
83 #include <mono/utils/lock-free-queue.h>
84 #include <mono/utils/mono-conc-hashtable.h>
85 #include <mono/utils/mono-os-mutex.h>
86 #include <mono/utils/mono-logger-internals.h>
87 #include <mono/utils/mono-counters.h>
89 // Statistics for profiler events.
90 static gint32 coverage_methods_ctr,
91 coverage_statements_ctr,
93 coverage_assemblies_ctr;
95 struct _MonoProfiler {
96 MonoProfilerHandle handle;
106 MonoConcurrentHashTable *filtered_classes;
107 MonoConcurrentHashTable *suppressed_assemblies;
109 MonoConcurrentHashTable *methods;
110 MonoConcurrentHashTable *assemblies;
111 MonoConcurrentHashTable *classes;
113 MonoConcurrentHashTable *image_to_methods;
115 GHashTable *uncovered_methods;
117 guint32 previous_offset;
121 //Where to compress the output file
124 //Name of the generated xml file
125 const char *output_filename;
127 //Filter files used by the code coverage mode
128 GPtrArray *cov_filter_files;
131 static ProfilerConfig coverage_config;
132 static struct _MonoProfiler coverage_profiler;
134 /* This is a very basic escape function that escapes < > and &
135 Ideally we'd use g_markup_escape_string but that function isn't
136 available in Mono's eglib. This was written without looking at the
137 source of that function in glib. */
139 escape_string_for_xml (const char *string)
141 GString *string_builder = g_string_new (NULL);
142 const char *start, *p;
146 while (*p && *p != '&' && *p != '<' && *p != '>')
149 g_string_append_len (string_builder, start, p - start);
156 g_string_append (string_builder, "<");
160 g_string_append (string_builder, ">");
164 g_string_append (string_builder, "&");
175 return g_string_free (string_builder, FALSE);
179 MonoLockFreeQueueNode node;
192 free_coverage_entry (gpointer data, gpointer userdata)
194 CoverageEntry *entry = (CoverageEntry *)data;
195 g_free (entry->filename);
200 obtain_coverage_for_method (MonoProfiler *prof, const MonoProfilerCoverageData *entry)
202 g_assert (prof == &coverage_profiler);
204 CoverageEntry *e = g_new (CoverageEntry, 1);
206 coverage_profiler.previous_offset = entry->il_offset;
208 e->offset = entry->il_offset;
209 e->counter = entry->counter;
210 e->filename = g_strdup(entry->file_name ? entry->file_name : "");
211 e->line = entry->line;
212 e->column = entry->column;
214 g_ptr_array_add (coverage_profiler.data, e);
218 parse_generic_type_names(char *name)
220 char *new_name, *ret;
221 int within_generic_declaration = 0, generic_members = 1;
223 if (name == NULL || *name == '\0')
224 return g_strdup ("");
226 if (!(ret = new_name = (char *) g_calloc (strlen (name) * 4 + 1, sizeof (char))))
232 within_generic_declaration = 1;
236 within_generic_declaration = 0;
238 if (*(name - 1) != '<') {
240 *new_name++ = '0' + generic_members;
242 memcpy (new_name, "<>", 8);
254 if (!within_generic_declaration)
265 dump_method (gpointer key, gpointer value, gpointer userdata)
267 MonoMethod *method = (MonoMethod *)value;
270 char *class_name, *escaped_image_name, *escaped_class_name, *escaped_method_name, *escaped_method_signature, *escaped_method_filename;
271 const char *image_name, *method_name, *method_signature, *method_filename;
274 coverage_profiler.previous_offset = 0;
275 coverage_profiler.data = g_ptr_array_new ();
277 mono_profiler_get_coverage_data (coverage_profiler.handle, method, obtain_coverage_for_method);
279 klass = mono_method_get_class (method);
280 image = mono_class_get_image (klass);
281 image_name = mono_image_get_name (image);
283 method_signature = mono_signature_get_desc (mono_method_signature (method), TRUE);
284 class_name = parse_generic_type_names (mono_type_get_name (mono_class_get_type (klass)));
285 method_name = mono_method_get_name (method);
287 if (coverage_profiler.data->len != 0) {
288 CoverageEntry *entry = (CoverageEntry *)coverage_profiler.data->pdata[0];
289 method_filename = entry->filename ? entry->filename : "";
291 method_filename = "";
293 image_name = image_name ? image_name : "";
294 method_signature = method_signature ? method_signature : "";
295 method_name = method_name ? method_name : "";
297 escaped_image_name = escape_string_for_xml (image_name);
298 escaped_class_name = escape_string_for_xml (class_name);
299 escaped_method_name = escape_string_for_xml (method_name);
300 escaped_method_signature = escape_string_for_xml (method_signature);
301 escaped_method_filename = escape_string_for_xml (method_filename);
303 fprintf (coverage_profiler.file, "\t<method assembly=\"%s\" class=\"%s\" name=\"%s (%s)\" filename=\"%s\" token=\"%d\">\n",
304 escaped_image_name, escaped_class_name, escaped_method_name, escaped_method_signature, escaped_method_filename, mono_method_get_token (method));
306 g_free (escaped_image_name);
307 g_free (escaped_class_name);
308 g_free (escaped_method_name);
309 g_free (escaped_method_signature);
310 g_free (escaped_method_filename);
312 for (i = 0; i < coverage_profiler.data->len; i++) {
313 CoverageEntry *entry = (CoverageEntry *)coverage_profiler.data->pdata[i];
315 fprintf (coverage_profiler.file, "\t\t<statement offset=\"%d\" counter=\"%d\" line=\"%d\" column=\"%d\"/>\n",
316 entry->offset, entry->counter, entry->line, entry->column);
319 fprintf (coverage_profiler.file, "\t</method>\n");
323 g_ptr_array_foreach (coverage_profiler.data, free_coverage_entry, NULL);
324 g_ptr_array_free (coverage_profiler.data, TRUE);
327 /* This empties the queue */
329 count_queue (MonoLockFreeQueue *queue)
331 MonoLockFreeQueueNode *node;
334 while ((node = mono_lock_free_queue_dequeue (queue))) {
336 mono_thread_hazardous_try_free (node, g_free);
343 dump_classes_for_image (gpointer key, gpointer value, gpointer userdata)
345 MonoClass *klass = (MonoClass *)key;
346 MonoLockFreeQueue *class_methods = (MonoLockFreeQueue *)value;
348 char *class_name, *escaped_class_name;
349 const char *image_name;
350 int number_of_methods, partially_covered;
353 image = mono_class_get_image (klass);
354 image_name = mono_image_get_name (image);
356 if (!image_name || strcmp (image_name, mono_image_get_name (((MonoImage*) userdata))) != 0)
359 class_name = mono_type_get_name (mono_class_get_type (klass));
361 number_of_methods = mono_class_num_methods (klass);
363 GHashTable *covered_methods = g_hash_table_new (NULL, NULL);
366 MonoLockFreeQueueNode *node;
369 while ((node = mono_lock_free_queue_dequeue (class_methods))) {
370 MethodNode *mnode = (MethodNode*)node;
371 g_hash_table_insert (covered_methods, mnode->method, mnode->method);
373 mono_thread_hazardous_try_free (node, g_free);
376 fully_covered = count;
378 gpointer iter = NULL;
380 while ((method = mono_class_get_methods (klass, &iter))) {
381 if (!g_hash_table_lookup (covered_methods, method))
382 g_hash_table_insert (coverage_profiler.uncovered_methods, method, method);
384 g_hash_table_destroy (covered_methods);
386 /* We don't handle partial covered yet */
387 partially_covered = 0;
389 escaped_class_name = escape_string_for_xml (class_name);
391 fprintf (coverage_profiler.file, "\t<class name=\"%s\" method-count=\"%d\" full=\"%d\" partial=\"%d\"/>\n",
392 escaped_class_name, number_of_methods, fully_covered, partially_covered);
394 g_free (escaped_class_name);
401 get_coverage_for_image (MonoImage *image, int *number_of_methods, guint *fully_covered, int *partially_covered)
403 MonoLockFreeQueue *image_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (coverage_profiler.image_to_methods, image);
405 *number_of_methods = mono_image_get_table_rows (image, MONO_TABLE_METHOD);
407 *fully_covered = count_queue (image_methods);
411 // FIXME: We don't handle partially covered yet.
412 *partially_covered = 0;
416 dump_assembly (gpointer key, gpointer value, gpointer userdata)
418 MonoAssembly *assembly = (MonoAssembly *)value;
419 MonoImage *image = mono_assembly_get_image (assembly);
420 const char *image_name, *image_guid, *image_filename;
421 char *escaped_image_name, *escaped_image_filename;
422 int number_of_methods = 0, partially_covered = 0;
423 guint fully_covered = 0;
425 image_name = mono_image_get_name (image);
426 image_guid = mono_image_get_guid (image);
427 image_filename = mono_image_get_filename (image);
429 image_name = image_name ? image_name : "";
430 image_guid = image_guid ? image_guid : "";
431 image_filename = image_filename ? image_filename : "";
433 get_coverage_for_image (image, &number_of_methods, &fully_covered, &partially_covered);
435 escaped_image_name = escape_string_for_xml (image_name);
436 escaped_image_filename = escape_string_for_xml (image_filename);
438 fprintf (coverage_profiler.file, "\t<assembly name=\"%s\" guid=\"%s\" filename=\"%s\" method-count=\"%d\" full=\"%d\" partial=\"%d\"/>\n",
439 escaped_image_name, image_guid, escaped_image_filename, number_of_methods, fully_covered, partially_covered);
441 g_free (escaped_image_name);
442 g_free (escaped_image_filename);
444 mono_conc_hashtable_foreach (coverage_profiler.classes, dump_classes_for_image, image);
450 fprintf (coverage_profiler.file, "<?xml version=\"1.0\"?>\n");
451 fprintf (coverage_profiler.file, "<coverage version=\"0.3\">\n");
453 mono_os_mutex_lock (&coverage_profiler.mutex);
454 mono_conc_hashtable_foreach (coverage_profiler.assemblies, dump_assembly, NULL);
455 mono_conc_hashtable_foreach (coverage_profiler.methods, dump_method, NULL);
456 g_hash_table_foreach (coverage_profiler.uncovered_methods, dump_method, NULL);
457 mono_os_mutex_unlock (&coverage_profiler.mutex);
459 fprintf (coverage_profiler.file, "</coverage>\n");
462 static MonoLockFreeQueueNode *
463 create_method_node (MonoMethod *method)
465 MethodNode *node = (MethodNode *) g_malloc (sizeof (MethodNode));
466 mono_lock_free_queue_node_init ((MonoLockFreeQueueNode *) node, FALSE);
467 node->method = method;
469 return (MonoLockFreeQueueNode *) node;
473 coverage_filter (MonoProfiler *prof, MonoMethod *method)
478 MonoAssembly *assembly;
479 MonoMethodHeader *header;
480 guint32 iflags, flags, code_size;
481 char *fqn, *classname;
482 gboolean has_positive, found;
483 MonoLockFreeQueue *image_methods, *class_methods;
484 MonoLockFreeQueueNode *node;
486 g_assert (prof == &coverage_profiler);
488 flags = mono_method_get_flags (method, &iflags);
489 if ((iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
490 (flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
493 // Don't need to do anything else if we're already tracking this method
494 if (mono_conc_hashtable_lookup (coverage_profiler.methods, method))
497 klass = mono_method_get_class (method);
498 image = mono_class_get_image (klass);
500 // Don't handle coverage for the core assemblies
501 if (mono_conc_hashtable_lookup (coverage_profiler.suppressed_assemblies, (gpointer) mono_image_get_name (image)) != NULL)
504 if (coverage_profiler.filters) {
505 /* Check already filtered classes first */
506 if (mono_conc_hashtable_lookup (coverage_profiler.filtered_classes, klass))
509 classname = mono_type_get_name (mono_class_get_type (klass));
511 fqn = g_strdup_printf ("[%s]%s", mono_image_get_name (image), classname);
513 // Check positive filters first
514 has_positive = FALSE;
516 for (guint i = 0; i < coverage_profiler.filters->len; ++i) {
517 char *filter = (char *)g_ptr_array_index (coverage_profiler.filters, i);
519 if (filter [0] == '+') {
520 filter = &filter [1];
522 if (strstr (fqn, filter) != NULL)
529 if (has_positive && !found) {
530 mono_os_mutex_lock (&coverage_profiler.mutex);
531 mono_conc_hashtable_insert (coverage_profiler.filtered_classes, klass, klass);
532 mono_os_mutex_unlock (&coverage_profiler.mutex);
539 for (guint i = 0; i < coverage_profiler.filters->len; ++i) {
540 // FIXME: Is substring search sufficient?
541 char *filter = (char *)g_ptr_array_index (coverage_profiler.filters, i);
542 if (filter [0] == '+')
546 filter = &filter [1];
548 if (strstr (fqn, filter) != NULL) {
549 mono_os_mutex_lock (&coverage_profiler.mutex);
550 mono_conc_hashtable_insert (coverage_profiler.filtered_classes, klass, klass);
551 mono_os_mutex_unlock (&coverage_profiler.mutex);
563 header = mono_method_get_header_checked (method, &error);
564 mono_error_cleanup (&error);
566 mono_method_header_get_code (header, &code_size, NULL);
568 assembly = mono_image_get_assembly (image);
570 // Need to keep the assemblies around for as long as they are kept in the hashtable
571 // Nunit, for example, has a habit of unloading them before the coverage statistics are
572 // generated causing a crash. See https://bugzilla.xamarin.com/show_bug.cgi?id=39325
573 mono_assembly_addref (assembly);
575 mono_os_mutex_lock (&coverage_profiler.mutex);
576 mono_conc_hashtable_insert (coverage_profiler.methods, method, method);
577 mono_conc_hashtable_insert (coverage_profiler.assemblies, assembly, assembly);
578 mono_os_mutex_unlock (&coverage_profiler.mutex);
580 image_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (coverage_profiler.image_to_methods, image);
582 if (image_methods == NULL) {
583 image_methods = (MonoLockFreeQueue *) g_malloc (sizeof (MonoLockFreeQueue));
584 mono_lock_free_queue_init (image_methods);
585 mono_os_mutex_lock (&coverage_profiler.mutex);
586 mono_conc_hashtable_insert (coverage_profiler.image_to_methods, image, image_methods);
587 mono_os_mutex_unlock (&coverage_profiler.mutex);
590 node = create_method_node (method);
591 mono_lock_free_queue_enqueue (image_methods, node);
593 class_methods = (MonoLockFreeQueue *)mono_conc_hashtable_lookup (coverage_profiler.classes, klass);
595 if (class_methods == NULL) {
596 class_methods = (MonoLockFreeQueue *) g_malloc (sizeof (MonoLockFreeQueue));
597 mono_lock_free_queue_init (class_methods);
598 mono_os_mutex_lock (&coverage_profiler.mutex);
599 mono_conc_hashtable_insert (coverage_profiler.classes, klass, class_methods);
600 mono_os_mutex_unlock (&coverage_profiler.mutex);
603 node = create_method_node (method);
604 mono_lock_free_queue_enqueue (class_methods, node);
609 #define LINE_BUFFER_SIZE 4096
610 /* Max file limit of 128KB */
611 #define MAX_FILE_SIZE 128 * 1024
613 get_file_content (const gchar *filename)
621 stream = fopen (filename, "r");
625 res = fseek (stream, 0, SEEK_END);
631 filesize = ftell (stream);
637 res = fseek (stream, 0, SEEK_SET);
643 if (filesize > MAX_FILE_SIZE) {
648 buffer = (char *) g_malloc ((filesize + 1) * sizeof (char));
649 while ((bytes_read = fread (buffer + offset, 1, LINE_BUFFER_SIZE, stream)) > 0)
650 offset += bytes_read;
652 /* NULL terminate our buffer */
653 buffer[filesize] = '\0';
660 get_next_line (char *contents, char **next_start)
664 if (p == NULL || *p == '\0') {
669 while (*p != '\n' && *p != '\0')
682 init_suppressed_assemblies (void)
687 coverage_profiler.suppressed_assemblies = mono_conc_hashtable_new (g_str_hash, g_str_equal);
689 /* Don't need to free content as it is referred to by the lines stored in @filters */
690 content = get_file_content (SUPPRESSION_DIR "/mono-profiler-coverage.suppression");
692 content = get_file_content (SUPPRESSION_DIR "/mono-profiler-log.suppression");
696 while ((line = get_next_line (content, &content))) {
697 line = g_strchomp (g_strchug (line));
698 /* No locking needed as we're doing initialization */
699 mono_conc_hashtable_insert (coverage_profiler.suppressed_assemblies, line, line);
704 parse_cov_filter_file (GPtrArray *filters, const char *file)
709 /* Don't need to free content as it is referred to by the lines stored in @filters */
710 content = get_file_content (file);
711 if (content == NULL) {
712 mono_profiler_printf_err ("Could not open coverage filter file '%s'.", file);
716 while ((line = get_next_line (content, &content)))
717 g_ptr_array_add (filters, g_strchug (g_strchomp (line)));
721 unref_coverage_assemblies (gpointer key, gpointer value, gpointer userdata)
723 MonoAssembly *assembly = (MonoAssembly *)value;
724 mono_assembly_close (assembly);
728 log_shutdown (MonoProfiler *prof)
730 g_assert (prof == &coverage_profiler);
734 mono_os_mutex_lock (&coverage_profiler.mutex);
735 mono_conc_hashtable_foreach (coverage_profiler.assemblies, unref_coverage_assemblies, NULL);
736 mono_os_mutex_unlock (&coverage_profiler.mutex);
738 mono_conc_hashtable_destroy (coverage_profiler.methods);
739 mono_conc_hashtable_destroy (coverage_profiler.assemblies);
740 mono_conc_hashtable_destroy (coverage_profiler.classes);
741 mono_conc_hashtable_destroy (coverage_profiler.filtered_classes);
743 mono_conc_hashtable_destroy (coverage_profiler.image_to_methods);
744 mono_conc_hashtable_destroy (coverage_profiler.suppressed_assemblies);
745 mono_os_mutex_destroy (&coverage_profiler.mutex);
747 if (*coverage_config.output_filename == '|') {
748 pclose (coverage_profiler.file);
749 } else if (*coverage_config.output_filename == '#') {
752 fclose (coverage_profiler.file);
755 g_free (coverage_profiler.args);
759 runtime_initialized (MonoProfiler *profiler)
761 mono_counters_register ("Event: Coverage methods", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_methods_ctr);
762 mono_counters_register ("Event: Coverage statements", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_statements_ctr);
763 mono_counters_register ("Event: Coverage classes", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_classes_ctr);
764 mono_counters_register ("Event: Coverage assemblies", MONO_COUNTER_UINT | MONO_COUNTER_PROFILER | MONO_COUNTER_MONOTONIC, &coverage_assemblies_ctr);
767 static void usage (void);
770 match_option (const char *arg, const char *opt_name, const char **rval)
773 const char *end = strchr (arg, '=');
777 return !strcmp (arg, opt_name);
779 if (strncmp (arg, opt_name, strlen (opt_name)) || (end - arg) > strlen (opt_name) + 1)
784 //FIXME how should we handle passing a value to an arg that doesn't expect it?
785 return !strcmp (arg, opt_name);
790 parse_arg (const char *arg)
794 if (match_option (arg, "help", NULL)) {
796 // } else if (match_option (arg, "zip", NULL)) {
797 // coverage_config.use_zip = TRUE;
798 } else if (match_option (arg, "output", &val)) {
799 coverage_config.output_filename = g_strdup (val);
800 // } else if (match_option (arg, "covfilter", &val)) {
801 // g_error ("not supported");
802 } else if (match_option (arg, "covfilter-file", &val)) {
803 if (coverage_config.cov_filter_files == NULL)
804 coverage_config.cov_filter_files = g_ptr_array_new ();
805 g_ptr_array_add (coverage_config.cov_filter_files, g_strdup (val));
807 mono_profiler_printf_err ("Could not parse argument: %s", arg);
812 parse_args (const char *desc)
815 gboolean in_quotes = FALSE;
816 char quote_char = '\0';
817 char *buffer = malloc (strlen (desc));
820 for (p = desc; *p; p++){
824 if (buffer_pos != 0){
825 buffer [buffer_pos] = 0;
830 buffer [buffer_pos++] = *p;
836 buffer [buffer_pos++] = p[1];
843 if (quote_char == *p)
846 buffer [buffer_pos++] = *p;
853 buffer [buffer_pos++] = *p;
858 if (buffer_pos != 0) {
859 buffer [buffer_pos] = 0;
869 mono_profiler_printf ("Mono coverage profiler");
870 mono_profiler_printf ("Usage: mono --profile=coverage[:OPTION1[,OPTION2...]] program.exe\n");
871 mono_profiler_printf ("Options:");
872 mono_profiler_printf ("\thelp show this usage info");
874 // mono_profiler_printf ("\tcovfilter=ASSEMBLY add ASSEMBLY to the code coverage filters");
875 // mono_profiler_printf ("\t prefix a + to include the assembly or a - to exclude it");
876 // mono_profiler_printf ("\t e.g. covfilter=-mscorlib");
877 mono_profiler_printf ("\tcovfilter-file=FILE use FILE to generate the list of assemblies to be filtered");
878 mono_profiler_printf ("\toutput=FILENAME write the data to file FILENAME (the file is always overwritten)");
879 mono_profiler_printf ("\toutput=+FILENAME write the data to file FILENAME.pid (the file is always overwritten)");
880 mono_profiler_printf ("\toutput=|PROGRAM write the data to the stdin of PROGRAM");
881 mono_profiler_printf ("\toutput=|PROGRAM write the data to the stdin of PROGRAM");
882 // mono_profiler_printf ("\tzip compress the output data");
886 mono_profiler_init_coverage (const char *desc);
889 mono_profiler_init_coverage (const char *desc)
891 GPtrArray *filters = NULL;
893 parse_args (desc [strlen("coverage")] == ':' ? desc + strlen ("coverage") + 1 : "");
895 if (coverage_config.cov_filter_files) {
896 filters = g_ptr_array_new ();
898 for (i = 0; i < coverage_config.cov_filter_files->len; ++i) {
899 const char *name = coverage_config.cov_filter_files->pdata [i];
900 parse_cov_filter_file (filters, name);
904 coverage_profiler.args = g_strdup (desc);
906 //If coverage_config.output_filename begin with +, append the pid at the end
907 if (!coverage_config.output_filename)
908 coverage_config.output_filename = "coverage.xml";
909 else if (*coverage_config.output_filename == '+')
910 coverage_config.output_filename = g_strdup_printf ("%s.%d", coverage_config.output_filename + 1, getpid ());
912 if (*coverage_config.output_filename == '|')
913 coverage_profiler.file = popen (coverage_config.output_filename + 1, "w");
914 else if (*coverage_config.output_filename == '#')
915 coverage_profiler.file = fdopen (strtol (coverage_config.output_filename + 1, NULL, 10), "a");
917 coverage_profiler.file = fopen (coverage_config.output_filename, "w");
919 if (!coverage_profiler.file) {
920 mono_profiler_printf_err ("Could not create coverage profiler output file '%s'.", coverage_config.output_filename);
924 mono_os_mutex_init (&coverage_profiler.mutex);
925 coverage_profiler.methods = mono_conc_hashtable_new (NULL, NULL);
926 coverage_profiler.assemblies = mono_conc_hashtable_new (NULL, NULL);
927 coverage_profiler.classes = mono_conc_hashtable_new (NULL, NULL);
928 coverage_profiler.filtered_classes = mono_conc_hashtable_new (NULL, NULL);
929 coverage_profiler.image_to_methods = mono_conc_hashtable_new (NULL, NULL);
930 coverage_profiler.uncovered_methods = g_hash_table_new (NULL, NULL);
931 init_suppressed_assemblies ();
933 coverage_profiler.filters = filters;
935 MonoProfilerHandle handle = coverage_profiler.handle = mono_profiler_create (&coverage_profiler);
938 * Required callbacks. These are either necessary for the profiler itself
939 * to function, or provide metadata that's needed if other events (e.g.
940 * allocations, exceptions) are dynamically enabled/disabled.
943 mono_profiler_set_runtime_shutdown_end_callback (handle, log_shutdown);
944 mono_profiler_set_runtime_initialized_callback (handle, runtime_initialized);
946 mono_profiler_enable_coverage ();
947 mono_profiler_set_coverage_filter_callback (handle, coverage_filter);