#include <mono/metadata/gc-internal.h>
//#if 0
-#ifdef HAVE_SGEN_GC
+#if defined(MONO_ARCH_GC_MAPS_SUPPORTED)
#include <mono/metadata/gc-internal.h>
#include <mono/utils/mono-counters.h>
+#if SIZEOF_VOID_P == 4
+typedef guint32 mword;
+#else
+typedef guint64 mword;
+#endif
+
+#define GC_BITS_PER_WORD (sizeof (mword) * 8)
+
/* Contains state needed by the GC Map construction code */
typedef struct {
/*
guint8 *reg_pin_bitmap;
} MonoCompileGC;
-#define ALIGN_TO(val,align) ((((guint64)val) + ((align) - 1)) & ~((align) - 1))
+#define ALIGN_TO(val,align) ((((mgreg_t)val) + ((align) - 1)) & ~((align) - 1))
+
+#undef DEBUG
#if 0
-#define DEBUG(s) do { s; } while (0)
+/* We don't support debug levels, its all-or-nothing */
+#define DEBUG(s) do { s; fflush (logfile); } while (0)
#define DEBUG_ENABLED 1
#else
#define DEBUG(s)
#endif
-#if 1
-#define DEBUG_GC_MAP(s) do { s; fflush (stdout); } while (0)
+#ifdef DEBUG_ENABLED
+//#if 1
+#define DEBUG_PRECISE(s) do { s; } while (0)
+#define DEBUG_PRECISE_ENABLED
#else
-#define DEBUG_GC_MAP(s)
+#define DEBUG_PRECISE(s)
#endif
-#define GC_BITS_PER_WORD (sizeof (gsize) * 8)
-
/*
* Contains information collected during the conservative stack marking pass,
* used during the precise pass. This helps to avoid doing a stack walk twice, which
int nreg_locations;
/* Relative to stack_start */
int reg_locations [MONO_MAX_IREGS];
-#ifdef DEBUG_ENABLED
+#ifdef DEBUG_PRECISE_ENABLED
MonoJitInfo *ji;
gpointer fp;
int regs [MONO_MAX_IREGS];
gboolean has_context;
MonoJitTlsData *jit_tls;
/* For debugging */
- guint64 tid;
+ mgreg_t tid;
+ gpointer ref_to_track;
/* Number of frames collected during the !precise pass */
int nframes;
FrameInfo frames [MAX_FRAMES];
static JITGCStats stats;
+static FILE *logfile;
+
// FIXME: Move these to a shared place
static inline void
return 0;
else if (frame_reg == AMD64_RBP)
return 1;
+#elif defined(TARGET_X86)
+ if (frame_reg == X86_EBP)
+ return 0;
+ else if (frame_reg == X86_ESP)
+ return 1;
#else
NOT_IMPLEMENTED;
#endif
return AMD64_RSP;
else if (encoded == 1)
return AMD64_RBP;
+#elif defined(TARGET_X86)
+ if (encoded == 0)
+ return X86_EBP;
+ else if (encoded == 1)
+ return X86_ESP;
#else
NOT_IMPLEMENTED;
#endif
#else
static int callee_saved_regs [] = { AMD64_RBP, AMD64_RBX, AMD64_R12, AMD64_R13, AMD64_R14, AMD64_R15 };
#endif
+#elif defined(TARGET_X86)
+static int callee_saved_regs [] = { X86_EBX, X86_ESI, X86_EDI };
#endif
static guint32
encode_regmask (guint32 regmask)
{
-#ifdef TARGET_AMD64
int i;
guint32 res;
}
g_assert (regmask == 0);
return res;
-#else
- NOT_IMPLEMENTED;
- return regmask;
-#endif
}
static guint32
decode_regmask (guint32 regmask)
{
-#ifdef TARGET_AMD64
int i;
guint32 res;
if (regmask & (1 << i))
res |= (1 << callee_saved_regs [i]);
return res;
-#else
- NOT_IMPLEMENTED;
- return regmask;
-#endif
}
/*
}
}
+static inline mgreg_t
+get_frame_pointer (MonoContext *ctx, int frame_reg)
+{
+#if defined(TARGET_AMD64)
+ if (frame_reg == AMD64_RSP)
+ return ctx->rsp;
+ else if (frame_reg == AMD64_RBP)
+ return ctx->rbp;
+#elif defined(TARGET_X86)
+ if (frame_reg == X86_ESP)
+ return ctx->esp;
+ else if (frame_reg == X86_EBP)
+ return ctx->ebp;
+#endif
+ g_assert_not_reached ();
+ return 0;
+}
+
/*
* conservatively_pass:
*
FrameInfo *fi;
guint32 precise_regmask;
+ if (tls) {
+ tls->nframes = 0;
+ tls->ref_to_track = NULL;
+ }
+
/* tls == NULL can happen during startup */
if (mono_thread_internal_current () == NULL || !tls) {
mono_gc_conservatively_scan_area (stack_start, stack_end);
memset (reg_locations, 0, sizeof (reg_locations));
memset (new_reg_locations, 0, sizeof (new_reg_locations));
- tls->nframes = 0;
-
while (TRUE) {
memcpy (&ctx, &new_ctx, sizeof (ctx));
* we have to mark it conservatively.
*/
if (reg_locations [i]) {
- DEBUG (printf ("\tscan saved reg %s location %p.\n", mono_arch_regname (i), reg_locations [i]));
+ DEBUG (fprintf (logfile, "\tscan saved reg %s location %p.\n", mono_arch_regname (i), reg_locations [i]));
mono_gc_conservatively_scan_area (reg_locations [i], reg_locations [i] + sizeof (mgreg_t));
scanned_registers += sizeof (mgreg_t);
}
reg_locations [i] = new_reg_locations [i];
- DEBUG (printf ("\treg %s is now at location %p.\n", mono_arch_regname (i), reg_locations [i]));
+ DEBUG (fprintf (logfile, "\treg %s is now at location %p.\n", mono_arch_regname (i), reg_locations [i]));
}
}
- g_assert ((guint64)stack_limit % sizeof (mgreg_t) == 0);
+ g_assert ((mgreg_t)stack_limit % sizeof (mgreg_t) == 0);
-#ifdef MONO_ARCH_HAVE_FIND_JIT_INFO_EXT
res = mono_find_jit_info_ext (frame.domain ? frame.domain : mono_domain_get (), tls->jit_tls, NULL, &ctx, &new_ctx, NULL, &lmf, new_reg_locations, &frame);
if (!res)
break;
-#else
- break;
-#endif
+
+ ji = frame.ji;
+
+ if (frame.type == FRAME_TYPE_MANAGED_TO_NATIVE) {
+ /*
+ * These frames are problematic for several reasons:
+ * - they are unwound through an LMF, and we have no precise register tracking for those.
+ * - the LMF might not contain a precise ip, so we can't compute the call site.
+ * - the LMF only unwinds to the wrapper frame, so we get these methods twice.
+ */
+ DEBUG (fprintf (logfile, "Mark(0): <Managed-to-native transition>\n"));
+ for (i = 0; i < MONO_MAX_IREGS; ++i) {
+ if (reg_locations [i]) {
+ DEBUG (fprintf (logfile, "\tscan saved reg %s location %p.\n", mono_arch_regname (i), reg_locations [i]));
+ mono_gc_conservatively_scan_area (reg_locations [i], reg_locations [i] + sizeof (mgreg_t));
+ scanned_registers += sizeof (mgreg_t);
+ }
+ reg_locations [i] = NULL;
+ new_reg_locations [i] = NULL;
+ }
+ ctx = new_ctx;
+ continue;
+ }
/* The last frame can be in any state so mark conservatively */
if (last) {
+ if (ji) {
+ DEBUG (char *fname = mono_method_full_name (ji->method, TRUE); fprintf (logfile, "Mark(0): %s+0x%x (%p)\n", fname, pc_offset, (gpointer)MONO_CONTEXT_GET_IP (&ctx)); g_free (fname));
+ }
+ DEBUG (fprintf (logfile, "\t <Last frame>\n"));
last = FALSE;
continue;
}
- ji = frame.ji;
-
- /* This happens with native-to-managed transitions */
- if (!(MONO_CONTEXT_GET_IP (&ctx) >= ji->code_start && (guint8*)MONO_CONTEXT_GET_IP (&ctx) < (guint8*)ji->code_start + ji->code_size))
- continue;
+ pc_offset = (guint8*)MONO_CONTEXT_GET_IP (&ctx) - (guint8*)ji->code_start;
/* These frames are very problematic */
if (ji->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
- DEBUG (char *fname = mono_method_full_name (ji->method, TRUE); printf ("Mark(0): %s+0x%x (%p)\n", fname, pc_offset, (gpointer)MONO_CONTEXT_GET_IP (&ctx)); g_free (fname));
- DEBUG (printf ("\tSkip.\n"));
+ DEBUG (char *fname = mono_method_full_name (ji->method, TRUE); fprintf (logfile, "Mark(0): %s+0x%x (%p)\n", fname, pc_offset, (gpointer)MONO_CONTEXT_GET_IP (&ctx)); g_free (fname));
+ DEBUG (fprintf (logfile, "\tSkip.\n"));
continue;
}
* Can't save information since the array is full. So scan the rest of the
* stack conservatively.
*/
- DEBUG (printf ("Mark (0): Frame stack full.\n"));
+ DEBUG (fprintf (logfile, "Mark (0): Frame stack full.\n"));
break;
}
* - spill area
* - localloc-ed memory
*/
- pc_offset = (guint8*)MONO_CONTEXT_GET_IP (&ctx) - (guint8*)ji->code_start;
g_assert (pc_offset >= 0);
emap = ji->gc_info;
if (!emap) {
- DEBUG (char *fname = mono_method_full_name (ji->method, TRUE); printf ("Mark(0): %s+0x%x (%p)\n", fname, pc_offset, (gpointer)MONO_CONTEXT_GET_IP (&ctx)); g_free (fname));
- DEBUG (printf ("\tNo GC Map.\n"));
+ DEBUG (char *fname = mono_method_full_name (ji->method, TRUE); fprintf (logfile, "Mark(0): %s+0x%x (%p)\n", fname, pc_offset, (gpointer)MONO_CONTEXT_GET_IP (&ctx)); g_free (fname));
+ DEBUG (fprintf (logfile, "\tNo GC Map.\n"));
continue;
}
+ /* The embedded callsite table requires this */
+ g_assert (((mgreg_t)emap % 4) == 0);
+
/*
* Debugging aid to control the number of frames scanned precisely
*/
p += map->callsite_entry_size * map->ncallsites;
bitmaps = p;
-#ifdef __x86_64__
- if (map->frame_reg == AMD64_RSP)
- fp = (guint8*)ctx.rsp;
- else if (map->frame_reg == AMD64_RBP)
- fp = (guint8*)ctx.rbp;
- else
- g_assert_not_reached ();
-#else
- fp = NULL;
- g_assert_not_reached ();
-#endif
+ fp = (guint8*)get_frame_pointer (&ctx, map->frame_reg);
real_frame_start = fp + map->start_offset;
frame_start = fp + map->start_offset + map->map_offset;
frame_end = fp + map->end_offset;
- DEBUG (char *fname = mono_method_full_name (ji->method, TRUE); printf ("Mark(0): %s+0x%x (%p) limit=%p fp=%p frame=%p-%p (%d)\n", fname, pc_offset, (gpointer)MONO_CONTEXT_GET_IP (&ctx), stack_limit, fp, frame_start, frame_end, (int)(frame_end - frame_start)); g_free (fname));
+ DEBUG (char *fname = mono_method_full_name (ji->method, TRUE); fprintf (logfile, "Mark(0): %s+0x%x (%p) limit=%p fp=%p frame=%p-%p (%d)\n", fname, pc_offset, (gpointer)MONO_CONTEXT_GET_IP (&ctx), stack_limit, fp, frame_start, frame_end, (int)(frame_end - frame_start)); g_free (fname));
/* Find the callsite index */
- if (ji->code_size < 256) {
+ if (map->callsite_entry_size == 1) {
for (i = 0; i < map->ncallsites; ++i)
/* ip points inside the call instruction */
if (map->callsites.offsets8 [i] == pc_offset + 1)
break;
- } else if (ji->code_size < 65536) {
+ } else if (map->callsite_entry_size == 2) {
// FIXME: Use a binary search
for (i = 0; i < map->ncallsites; ++i)
/* ip points inside the call instruction */
if (real_frame_start > stack_limit) {
/* This scans the previously skipped frames as well */
- DEBUG (printf ("\tscan area %p-%p (%d).\n", stack_limit, real_frame_start, (int)(real_frame_start - stack_limit)));
+ DEBUG (fprintf (logfile, "\tscan area %p-%p (%d).\n", stack_limit, real_frame_start, (int)(real_frame_start - stack_limit)));
mono_gc_conservatively_scan_area (stack_limit, real_frame_start);
stats.scanned_other += real_frame_start - stack_limit;
}
for (i = 0; i < map->nslots; ++i) {
pinned = pin_bitmap [i / 8] & (1 << (i % 8));
if (pinned) {
- DEBUG (printf ("\tscan slot %s0x%x(fp)=%p.\n", (guint8*)p > (guint8*)fp ? "" : "-", ABS ((int)((gssize)p - (gssize)fp)), p));
+ DEBUG (fprintf (logfile, "\tscan slot %s0x%x(fp)=%p.\n", (guint8*)p > (guint8*)fp ? "" : "-", ABS ((int)((gssize)p - (gssize)fp)), p));
mono_gc_conservatively_scan_area (p, p + sizeof (mgreg_t));
scanned_conservatively += sizeof (mgreg_t);
} else {
continue;
if (pin_bitmap [bindex / 8] & (1 << (bindex % 8))) {
- DEBUG (printf ("\treg %s saved at 0x%p is pinning.\n", mono_arch_regname (i), reg_locations [i]));
+ DEBUG (fprintf (logfile, "\treg %s saved at 0x%p is pinning.\n", mono_arch_regname (i), reg_locations [i]));
precise_regmask &= ~(1 << i);
}
bindex ++;
fi->bitmap = NULL;
fi->frame_start_offset = frame_start - stack_start;
fi->nreg_locations = 0;
- DEBUG (fi->ji = ji);
- DEBUG (fi->fp = fp);
+ DEBUG_PRECISE (fi->ji = ji);
+ DEBUG_PRECISE (fi->fp = fp);
if (map->has_ref_regs) {
int bitmap_width = ALIGN_TO (map->nref_regs, 8) / 8;
continue;
if (reg_locations [i] && (ref_bitmap [bindex / 8] & (1 << (bindex % 8)))) {
- DEBUG (fi->regs [fi->nreg_locations] = i);
- DEBUG (printf ("\treg %s saved at 0x%p is ref.\n", mono_arch_regname (i), reg_locations [i]));
+ DEBUG_PRECISE (fi->regs [fi->nreg_locations] = i);
+ DEBUG (fprintf (logfile, "\treg %s saved at 0x%p is ref.\n", mono_arch_regname (i), reg_locations [i]));
fi->reg_locations [fi->nreg_locations] = (guint8*)reg_locations [i] - stack_start;
fi->nreg_locations ++;
}
* processed.
*/
if (reg_locations [i])
- DEBUG (printf ("\treg %s at location %p (==%p) is precise.\n", mono_arch_regname (i), reg_locations [i], (gpointer)*reg_locations [i]));
+ DEBUG (fprintf (logfile, "\treg %s at location %p (==%p) is precise.\n", mono_arch_regname (i), reg_locations [i], (gpointer)*reg_locations [i]));
reg_locations [i] = NULL;
}
}
/* Scan the remaining register save locations */
for (i = 0; i < MONO_MAX_IREGS; ++i) {
if (reg_locations [i]) {
- DEBUG (printf ("\tscan saved reg location %p.\n", reg_locations [i]));
+ DEBUG (fprintf (logfile, "\tscan saved reg location %p.\n", reg_locations [i]));
mono_gc_conservatively_scan_area (reg_locations [i], reg_locations [i] + sizeof (mgreg_t));
scanned_registers += sizeof (mgreg_t);
}
if (new_reg_locations [i]) {
- DEBUG (printf ("\tscan saved reg location %p.\n", new_reg_locations [i]));
+ DEBUG (fprintf (logfile, "\tscan saved reg location %p.\n", new_reg_locations [i]));
mono_gc_conservatively_scan_area (new_reg_locations [i], new_reg_locations [i] + sizeof (mgreg_t));
scanned_registers += sizeof (mgreg_t);
}
}
if (stack_limit < stack_end) {
- DEBUG (printf ("\tscan remaining stack %p-%p (%d).\n", stack_limit, stack_end, (int)(stack_end - stack_limit)));
+ DEBUG (fprintf (logfile, "\tscan remaining stack %p-%p (%d).\n", stack_limit, stack_end, (int)(stack_end - stack_limit)));
mono_gc_conservatively_scan_area (stack_limit, stack_end);
stats.scanned_native += stack_end - stack_limit;
}
- DEBUG (printf ("Marked %d bytes, p=%d,c=%d out of %d.\n", scanned, scanned_precisely, scanned_conservatively, (int)(stack_end - stack_start)));
+ DEBUG (fprintf (logfile, "Marked %d bytes, p=%d,c=%d out of %d.\n", scanned, scanned_precisely, scanned_conservatively, (int)(stack_end - stack_start)));
stats.scanned_stacks += stack_end - stack_start;
stats.scanned += scanned;
fi = &tls->frames [findex];
frame_start = stack_start + fi->frame_start_offset;
+ DEBUG (char *fname = mono_method_full_name (fi->ji->method, TRUE); fprintf (logfile, "Mark(1): %s\n", fname); g_free (fname));
+
/*
* FIXME: Add a function to mark using a bitmap, to avoid doing a
* call for each object.
if (live) {
MonoObject *obj = *ptr;
if (obj) {
- DEBUG (printf ("\tref %s0x%x(fp)=%p: %p ->", (guint8*)ptr >= (guint8*)fi->fp ? "" : "-", ABS ((int)((gssize)ptr - (gssize)fi->fp)), ptr, obj));
+ DEBUG (fprintf (logfile, "\tref %s0x%x(fp)=%p: %p ->", (guint8*)ptr >= (guint8*)fi->fp ? "" : "-", ABS ((int)((gssize)ptr - (gssize)fi->fp)), ptr, obj));
*ptr = mono_gc_scan_object (obj);
- DEBUG (printf (" %p.\n", *ptr));
+ DEBUG (fprintf (logfile, " %p.\n", *ptr));
} else {
- DEBUG (printf ("\tref %s0x%x(fp)=%p: %p.\n", (guint8*)ptr >= (guint8*)fi->fp ? "" : "-", ABS ((int)((gssize)ptr - (gssize)fi->fp)), ptr, obj));
+ DEBUG (fprintf (logfile, "\tref %s0x%x(fp)=%p: %p.\n", (guint8*)ptr >= (guint8*)fi->fp ? "" : "-", ABS ((int)((gssize)ptr - (gssize)fi->fp)), ptr, obj));
}
} else {
#if 0
* Stack slots might be shared between ref and non-ref variables ?
*/
if (map->ref_slots [i / 8] & (1 << (i % 8))) {
- DEBUG (printf ("\tref %s0x%x(fp)=%p: dead (%p)\n", (guint8*)ptr >= (guint8*)fi->fp ? "" : "-", ABS ((int)((gssize)ptr - (gssize)fi->fp)), ptr, *ptr));
+ DEBUG (fprintf (logfile, "\tref %s0x%x(fp)=%p: dead (%p)\n", (guint8*)ptr >= (guint8*)fi->fp ? "" : "-", ABS ((int)((gssize)ptr - (gssize)fi->fp)), ptr, *ptr));
/*
* Fail fast if the live range is incorrect, and
* the JITted code tries to access this object
MonoObject *obj = *ptr;
if (obj) {
- DEBUG (printf ("\treg %s saved at %p: %p ->", mono_arch_regname (fi->regs [i]), ptr, obj));
+ DEBUG (fprintf (logfile, "\treg %s saved at %p: %p ->", mono_arch_regname (fi->regs [i]), ptr, obj));
*ptr = mono_gc_scan_object (obj);
- DEBUG (printf (" %p.\n", *ptr));
+ DEBUG (fprintf (logfile, " %p.\n", *ptr));
} else {
- DEBUG (printf ("\treg %s saved at %p: %p", mono_arch_regname (fi->regs [i]), ptr, obj));
+ DEBUG (fprintf (logfile, "\treg %s saved at %p: %p\n", mono_arch_regname (fi->regs [i]), ptr, obj));
}
}
}
+
+ /*
+ * Debugging aid to check for missed refs.
+ */
+ if (tls->ref_to_track) {
+ mgreg_t *p;
+
+ for (p = (mgreg_t*)stack_start; p < (mgreg_t*)stack_end; ++p)
+ if (*p == (mgreg_t)tls->ref_to_track)
+ printf ("REF AT %p.\n", p);
+ }
}
/*
{
TlsData *tls = user_data;
- DEBUG (printf ("*** %s stack marking %p-%p ***\n", precise ? "Precise" : "Conservative", stack_start, stack_end));
+ DEBUG (fprintf (logfile, "****************************************\n"));
+ DEBUG (fprintf (logfile, "*** %s stack marking for thread %p (%p-%p) ***\n", precise ? "Precise" : "Conservative", tls ? GUINT_TO_POINTER (tls->tid) : NULL, stack_start, stack_end));
+ DEBUG (fprintf (logfile, "****************************************\n"));
if (!precise)
conservative_pass (tls, stack_start, stack_end);
if (COMPILE_LLVM (cfg))
return;
+ if (!mono_gc_is_moving ())
+ return;
+
+ if (!cfg->compile_aot && !mono_gc_precise_stack_mark_enabled ())
+ return;
+
#if 1
/* Debugging support */
{
mono_class_compute_gc_descriptor (ins->klass);
bitmap = mono_gc_get_bitmap_for_descr (ins->klass->gc_descr, &numbits);
- g_assert (bitmap);
+ if (!bitmap)
+ pin = TRUE;
/*
* Most vtypes are marked volatile because of the LDADDR instructions,
for (j = 0; j < numbits; ++j) {
if (bitmap [j / GC_BITS_PER_WORD] & ((gsize)1 << (j % GC_BITS_PER_WORD))) {
/* The descriptor is for the boxed object */
- set_slot (gcfg, (pos + j - (sizeof (MonoObject) / sizeof (gpointer))), cindex, pin ? SLOT_PIN : SLOT_REF);
+ set_slot (gcfg, (pos + j - (sizeof (MonoObject) / sizeof (mgreg_t))), cindex, pin ? SLOT_PIN : SLOT_REF);
}
}
}
if (cfg->verbose_level > 1) {
for (j = 0; j < numbits; ++j) {
if (bitmap [j / GC_BITS_PER_WORD] & ((gsize)1 << (j % GC_BITS_PER_WORD)))
- printf ("\t\t%s slot at 0x%x(fp) (slot = %d)\n", pin ? "pin" : "ref", (int)(ins->inst_offset + (j * sizeof (mgreg_t))), (int)(pos + j - (sizeof (MonoObject) / sizeof (gpointer))));
+ printf ("\t\t%s slot at 0x%x(fp) (slot = %d)\n", pin ? "pin" : "ref", (int)(ins->inst_offset + (j * sizeof (mgreg_t))), (int)(pos + j - (sizeof (MonoObject) / sizeof (mgreg_t))));
}
}
} else {
/* Compute min/max offsets from the fp */
/* Locals */
-#ifdef TARGET_AMD64
+#if defined(TARGET_AMD64) || defined(TARGET_X86)
locals_min_offset = ALIGN_TO (cfg->locals_min_stack_offset, sizeof (mgreg_t));
locals_max_offset = cfg->locals_max_stack_offset;
#else
p += encoded_size;
/* Callsite table */
- p = (guint8*)ALIGN_TO ((guint64)p, map->callsite_entry_size);
+ p = (guint8*)ALIGN_TO ((mgreg_t)p, map->callsite_entry_size);
if (map->callsite_entry_size == 1) {
guint8 *offsets = p;
for (i = 0; i < ncallsites; ++i)
/* Bitmaps */
memcpy (p, bitmaps, bitmaps_size);
+ p += bitmaps_size;
+
+ g_assert ((guint8*)p - (guint8*)emap <= alloc_size);
stats.gc_maps_size += alloc_size;
stats.gc_callsites_size += ncallsites * map->callsite_entry_size;
stats.gc_map_struct_size += sizeof (GCEncodedMap) + encoded_size;
cfg->jit_info->gc_info = emap;
+
+ cfg->gc_map = (guint8*)emap;
+ cfg->gc_map_size = alloc_size;
}
stats.all_slots += nslots;
create_map (cfg);
}
+static void
+parse_debug_options (void)
+{
+ char **opts, **ptr;
+ char *env;
+
+ env = getenv ("MONO_GCMAP_DEBUG");
+ if (!env)
+ return;
+
+ opts = g_strsplit (env, ",", -1);
+ for (ptr = opts; ptr && *ptr; ptr ++) {
+ /* No options yet */
+ fprintf (stderr, "Invalid format for the MONO_GCMAP_DEBUG env variable: '%s'\n", env);
+ exit (1);
+ }
+ g_strfreev (opts);
+}
+
void
mini_gc_init (void)
{
cb.thread_mark_func = thread_mark_func;
mono_gc_set_gc_callbacks (&cb);
+ logfile = mono_gc_get_logfile ();
+
+ parse_debug_options ();
+
mono_counters_register ("GC Maps size",
MONO_COUNTER_GC | MONO_COUNTER_INT, &stats.gc_maps_size);
mono_counters_register ("GC Call Sites size",
* - vtypes/refs used in EH regions are treated conservatively
* - if the code is finished, less pinning will be done, causing problems because
* we promote all surviving objects to old-gen.
+ * - the unwind code can't handle a method stopped inside a finally region, it thinks the caller is
+ * another method, but in reality it is either the exception handling code or the CALL_HANDLER opcode.
+ * This manifests in "Unable to find ip offset x in callsite list" assertions.
+ * - the unwind code also can't handle frames which are in the epilog, since the unwind info is not
+ * precise there.
*/
/*
projects / mono.git / blobdiff