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Use mark loop in GC
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yuyichao committed May 4, 2017
1 parent d84956b commit b893e02
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Showing 3 changed files with 64 additions and 420 deletions.
26 changes: 16 additions & 10 deletions src/gc-debug.c
Original file line number Diff line number Diff line change
Expand Up @@ -198,18 +198,21 @@ static void restore(void)

static void gc_verify_track(jl_ptls_t ptls)
{
jl_gc_mark_cache_t *gc_cache = &ptls->gc_cache;
do {
gc_mark_sp_t sp;
gc_mark_sp_init(gc_cache, &sp);
arraylist_push(&lostval_parents_done, lostval);
jl_printf(JL_STDERR, "Now looking for %p =======\n", lostval);
clear_mark(GC_CLEAN);
mark_all_roots(ptls);
gc_mark_object_list(ptls, &to_finalize, 0);
gc_mark_queue_all_roots(ptls, &sp);
gc_mark_queue_finlist(gc_cache, &sp, &to_finalize, 0);
for (int i = 0;i < jl_n_threads;i++) {
jl_ptls_t ptls2 = jl_all_tls_states[i];
gc_mark_object_list(ptls, &ptls2->finalizers, 0);
gc_mark_queue_finlist(gc_cache, &sp, &ptls2->finalizers, 0);
}
gc_mark_object_list(ptls, &finalizer_list_marked, 0);
visit_mark_stack(ptls);
gc_mark_queue_finlist(gc_cache, &sp, &finalizer_list_marked, 0);
gc_mark_loop(ptls, sp);
if (lostval_parents.len == 0) {
jl_printf(JL_STDERR, "Could not find the missing link. We missed a toplevel root. This is odd.\n");
break;
Expand Down Expand Up @@ -243,19 +246,22 @@ static void gc_verify_track(jl_ptls_t ptls)

void gc_verify(jl_ptls_t ptls)
{
jl_gc_mark_cache_t *gc_cache = &ptls->gc_cache;
gc_mark_sp_t sp;
gc_mark_sp_init(gc_cache, &sp);
lostval = NULL;
lostval_parents.len = 0;
lostval_parents_done.len = 0;
clear_mark(GC_CLEAN);
gc_verifying = 1;
mark_all_roots(ptls);
gc_mark_object_list(ptls, &to_finalize, 0);
gc_mark_queue_all_roots(ptls, &sp);
gc_mark_queue_finlist(gc_cache, &sp, &to_finalize, 0);
for (int i = 0;i < jl_n_threads;i++) {
jl_ptls_t ptls2 = jl_all_tls_states[i];
gc_mark_object_list(ptls, &ptls2->finalizers, 0);
gc_mark_queue_finlist(gc_cache, &sp, &ptls2->finalizers, 0);
}
gc_mark_object_list(ptls, &finalizer_list_marked, 0);
visit_mark_stack(ptls);
gc_mark_queue_finlist(gc_cache, &sp, &finalizer_list_marked, 0);
gc_mark_loop(ptls, sp);
int clean_len = bits_save[GC_CLEAN].len;
for(int i = 0; i < clean_len + bits_save[GC_OLD].len; i++) {
jl_taggedvalue_t *v = (jl_taggedvalue_t*)bits_save[i >= clean_len ? GC_OLD : GC_CLEAN].items[i >= clean_len ? i - clean_len : i];
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