static mword roots_size = 0; /* amount of memory in the root set */
static int num_roots_entries [ROOT_TYPE_NUM] = { 0, 0, 0 };
+#define GC_ROOT_NUM 32
+typedef struct {
+ int count;
+ void *objects [GC_ROOT_NUM];
+ int root_types [GC_ROOT_NUM];
+ uintptr_t extra_info [GC_ROOT_NUM];
+} GCRootReport;
+
+static void
+notify_gc_roots (GCRootReport *report)
+{
+ if (!report->count)
+ return;
+ mono_profiler_gc_roots (report->count, report->objects, report->root_types, report->extra_info);
+ report->count = 0;
+}
+
+static void
+add_profile_gc_root (GCRootReport *report, void *object, int rtype, uintptr_t extra_info)
+{
+ if (report->count == GC_ROOT_NUM)
+ notify_gc_roots (report);
+ report->objects [report->count] = object;
+ report->root_types [report->count] = rtype;
+ report->extra_info [report->count++] = ((MonoVTable*)LOAD_VTABLE (object))->klass;
+}
+
/*
* The current allocation cursors
* We allocate objects in the nursery.
static void scan_from_remsets (void *start_nursery, void *end_nursery, GrayQueue *queue);
static void scan_from_registered_roots (CopyOrMarkObjectFunc copy_func, char *addr_start, char *addr_end, int root_type, GrayQueue *queue);
static void scan_finalizer_entries (CopyOrMarkObjectFunc copy_func, FinalizeEntry *list, GrayQueue *queue);
+static void report_finalizer_roots (void);
+static void report_registered_roots (void);
static void find_pinning_ref_from_thread (char *obj, size_t size);
static void update_current_thread_stack (void *start);
static void finalize_in_range (CopyOrMarkObjectFunc copy_func, char *start, char *end, int generation, GrayQueue *queue);
start++;
}
//printf ("effective pinned: %d (at the end: %d)\n", count, (char*)end_nursery - (char*)last);
+ if (mono_profiler_get_events () & MONO_PROFILE_GC_ROOTS) {
+ GCRootReport report;
+ report.count = 0;
+ for (idx = 0; idx < count; ++idx)
+ add_profile_gc_root (&report, definitely_pinned [idx], MONO_PROFILE_GC_ROOT_PINNING, 0);
+ notify_gc_roots (&report);
+ }
return count;
}
return nursery_start;
}
+static void
+report_finalizer_roots_list (FinalizeEntry *list)
+{
+ GCRootReport report;
+ FinalizeEntry *fin;
+
+ report.count = 0;
+ for (fin = list; fin; fin = fin->next) {
+ if (!fin->object)
+ continue;
+ add_profile_gc_root (&report, fin->object, MONO_PROFILE_GC_ROOT_FINALIZER, 0);
+ }
+ notify_gc_roots (&report);
+}
+
+static void
+report_finalizer_roots (void)
+{
+ report_finalizer_roots_list (fin_ready_list);
+ report_finalizer_roots_list (critical_fin_list);
+}
+
+static GCRootReport *root_report;
+
+static void
+single_arg_report_root (void **obj)
+{
+ if (*obj)
+ add_profile_gc_root (root_report, *obj, MONO_PROFILE_GC_ROOT_OTHER, 0);
+}
+
+static void
+precisely_report_roots_from (GCRootReport *report, void** start_root, void** end_root, mword desc)
+{
+ switch (desc & ROOT_DESC_TYPE_MASK) {
+ case ROOT_DESC_BITMAP:
+ desc >>= ROOT_DESC_TYPE_SHIFT;
+ while (desc) {
+ if ((desc & 1) && *start_root) {
+ add_profile_gc_root (report, *start_root, MONO_PROFILE_GC_ROOT_OTHER, 0);
+ }
+ desc >>= 1;
+ start_root++;
+ }
+ return;
+ case ROOT_DESC_COMPLEX: {
+ gsize *bitmap_data = complex_descriptors + (desc >> ROOT_DESC_TYPE_SHIFT);
+ int bwords = (*bitmap_data) - 1;
+ void **start_run = start_root;
+ bitmap_data++;
+ while (bwords-- > 0) {
+ gsize bmap = *bitmap_data++;
+ void **objptr = start_run;
+ while (bmap) {
+ if ((bmap & 1) && *objptr) {
+ add_profile_gc_root (report, *objptr, MONO_PROFILE_GC_ROOT_OTHER, 0);
+ }
+ bmap >>= 1;
+ ++objptr;
+ }
+ start_run += GC_BITS_PER_WORD;
+ }
+ break;
+ }
+ case ROOT_DESC_USER: {
+ MonoGCRootMarkFunc marker = user_descriptors [desc >> ROOT_DESC_TYPE_SHIFT];
+ root_report = report;
+ marker (start_root, single_arg_report_root);
+ break;
+ }
+ case ROOT_DESC_RUN_LEN:
+ g_assert_not_reached ();
+ default:
+ g_assert_not_reached ();
+ }
+}
+
+static void
+report_registered_roots_by_type (int root_type)
+{
+ GCRootReport report;
+ int i;
+ RootRecord *root;
+ report.count = 0;
+ for (i = 0; i < roots_hash_size [root_type]; ++i) {
+ for (root = roots_hash [root_type][i]; root; root = root->next) {
+ DEBUG (6, fprintf (gc_debug_file, "Precise root scan %p-%p (desc: %p)\n", root->start_root, root->end_root, (void*)root->root_desc));
+ precisely_report_roots_from (&report, (void**)root->start_root, (void**)root->end_root, root->root_desc);
+ }
+ }
+ notify_gc_roots (&report);
+}
+
+static void
+report_registered_roots (void)
+{
+ report_registered_roots_by_type (ROOT_TYPE_NORMAL);
+ report_registered_roots_by_type (ROOT_TYPE_WBARRIER);
+}
+
static void
scan_finalizer_entries (CopyOrMarkObjectFunc copy_func, FinalizeEntry *list, GrayQueue *queue)
{
drain_gray_stack (&gray_queue);
+ if (mono_profiler_get_events () & MONO_PROFILE_GC_ROOTS)
+ report_registered_roots ();
+ if (mono_profiler_get_events () & MONO_PROFILE_GC_ROOTS)
+ report_finalizer_roots ();
TV_GETTIME (atv);
time_minor_scan_pinned += TV_ELAPSED_MS (btv, atv);
/* registered roots, this includes static fields */
workers_start_all_workers (1);
+ if (mono_profiler_get_events () & MONO_PROFILE_GC_ROOTS)
+ report_registered_roots ();
TV_GETTIME (atv);
time_major_scan_pinned += TV_ELAPSED_MS (btv, atv);
TV_GETTIME (btv);
time_major_scan_alloc_pinned += TV_ELAPSED_MS (atv, btv);
+ if (mono_profiler_get_events () & MONO_PROFILE_GC_ROOTS)
+ report_finalizer_roots ();
/* scan the list of objects ready for finalization */
scan_finalizer_entries (major_collector.copy_or_mark_object, fin_ready_list, WORKERS_DISTRIBUTE_GRAY_QUEUE);
scan_finalizer_entries (major_collector.copy_or_mark_object, critical_fin_list, WORKERS_DISTRIBUTE_GRAY_QUEUE);
projects / mono.git / blobdiff