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a7a908e |
Only in b/malloc: arena.c.orig
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a7a908e |
Only in b/malloc: hooks.c.orig
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a7a908e |
diff -rup a/malloc/malloc.c b/malloc/malloc.c
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a7a908e |
--- a/malloc/malloc.c 2012-02-14 10:08:22.062534892 -0700
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a7a908e |
+++ b/malloc/malloc.c 2012-02-14 10:19:43.088724473 -0700
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a7a908e |
@@ -2936,8 +2936,9 @@ public_mALLOc(size_t bytes)
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(void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
} else {
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a7a908e |
/* ... or sbrk() has failed and there is still a chance to mmap() */
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a7a908e |
- ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0, bytes);
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a7a908e |
- (void)mutex_unlock(&main_arena.mutex);
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a7a908e |
+ mstate prev = ar_ptr->next ? ar_ptr : 0;
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+ (void)mutex_unlock(&ar_ptr->mutex);
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+ ar_ptr = arena_get2(prev, bytes);
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a7a908e |
if(ar_ptr) {
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a7a908e |
victim = _int_malloc(ar_ptr, bytes);
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a7a908e |
(void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
@@ -3151,23 +3152,26 @@ public_vALLOc(size_t bytes)
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a7a908e |
if(!ar_ptr)
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return 0;
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a7a908e |
p = _int_valloc(ar_ptr, bytes);
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a7a908e |
- (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
if(!p) {
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a7a908e |
/* Maybe the failure is due to running out of mmapped areas. */
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a7a908e |
if(ar_ptr != &main_arena) {
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+ (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
ar_ptr = &main_arena;
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a7a908e |
(void)mutex_lock(&ar_ptr->mutex);
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a7a908e |
p = _int_memalign(ar_ptr, pagesz, bytes);
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a7a908e |
(void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
} else {
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a7a908e |
/* ... or sbrk() has failed and there is still a chance to mmap() */
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a7a908e |
- ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0, bytes);
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a7a908e |
+ mstate prev = ar_ptr->next ? ar_ptr : 0;
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a7a908e |
+ (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
+ ar_ptr = arena_get2(prev, bytes);
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a7a908e |
if(ar_ptr) {
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a7a908e |
p = _int_memalign(ar_ptr, pagesz, bytes);
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a7a908e |
(void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
}
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a7a908e |
}
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a7a908e |
- }
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a7a908e |
+ } else
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a7a908e |
+ (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
assert(!p || chunk_is_mmapped(mem2chunk(p)) ||
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a7a908e |
ar_ptr == arena_for_chunk(mem2chunk(p)));
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a7a908e |
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a7a908e |
@@ -3195,24 +3199,26 @@ public_pVALLOc(size_t bytes)
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a7a908e |
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a7a908e |
arena_get(ar_ptr, bytes + 2*pagesz + MINSIZE);
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a7a908e |
p = _int_pvalloc(ar_ptr, bytes);
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a7a908e |
- (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
if(!p) {
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a7a908e |
/* Maybe the failure is due to running out of mmapped areas. */
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a7a908e |
if(ar_ptr != &main_arena) {
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a7a908e |
+ (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
ar_ptr = &main_arena;
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a7a908e |
(void)mutex_lock(&ar_ptr->mutex);
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a7a908e |
p = _int_memalign(ar_ptr, pagesz, rounded_bytes);
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a7a908e |
(void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
} else {
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a7a908e |
/* ... or sbrk() has failed and there is still a chance to mmap() */
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a7a908e |
- ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0,
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a7a908e |
- bytes + 2*pagesz + MINSIZE);
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a7a908e |
+ mstate prev = ar_ptr->next ? ar_ptr : 0;
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a7a908e |
+ (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
+ ar_ptr = arena_get2(prev, bytes + 2*pagesz + MINSIZE);
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a7a908e |
if(ar_ptr) {
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a7a908e |
p = _int_memalign(ar_ptr, pagesz, rounded_bytes);
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a7a908e |
(void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
}
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a7a908e |
}
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a7a908e |
- }
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a7a908e |
+ } else
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a7a908e |
+ (void)mutex_unlock(&ar_ptr->mutex);
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a7a908e |
assert(!p || chunk_is_mmapped(mem2chunk(p)) ||
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a7a908e |
ar_ptr == arena_for_chunk(mem2chunk(p)));
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a7a908e |
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a7a908e |
@@ -3277,8 +3283,6 @@ public_cALLOc(size_t n, size_t elem_size
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a7a908e |
#endif
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a7a908e |
mem = _int_malloc(av, sz);
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a7a908e |
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a7a908e |
- /* Only clearing follows, so we can unlock early. */
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a7a908e |
- (void)mutex_unlock(&av->mutex);
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a7a908e |
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a7a908e |
assert(!mem || chunk_is_mmapped(mem2chunk(mem)) ||
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a7a908e |
av == arena_for_chunk(mem2chunk(mem)));
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a7a908e |
@@ -3286,21 +3290,23 @@ public_cALLOc(size_t n, size_t elem_size
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a7a908e |
if (mem == 0) {
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a7a908e |
/* Maybe the failure is due to running out of mmapped areas. */
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a7a908e |
if(av != &main_arena) {
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a7a908e |
+ (void)mutex_unlock(&av->mutex);
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a7a908e |
(void)mutex_lock(&main_arena.mutex);
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a7a908e |
mem = _int_malloc(&main_arena, sz);
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a7a908e |
(void)mutex_unlock(&main_arena.mutex);
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a7a908e |
} else {
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a7a908e |
/* ... or sbrk() has failed and there is still a chance to mmap() */
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a7a908e |
- (void)mutex_lock(&main_arena.mutex);
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a7a908e |
- av = arena_get2(av->next ? av : 0, sz);
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a7a908e |
- (void)mutex_unlock(&main_arena.mutex);
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a7a908e |
+ mstate prev = av->next ? av : 0;
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+ (void)mutex_unlock(&av->mutex);
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a7a908e |
+ av = arena_get2(prev, sz);
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a7a908e |
if(av) {
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a7a908e |
mem = _int_malloc(av, sz);
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a7a908e |
(void)mutex_unlock(&av->mutex);
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a7a908e |
}
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a7a908e |
}
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a7a908e |
if (mem == 0) return 0;
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a7a908e |
- }
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a7a908e |
+ } else
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a7a908e |
+ (void)mutex_unlock(&av->mutex);
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a7a908e |
p = mem2chunk(mem);
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a7a908e |
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a7a908e |
/* Two optional cases in which clearing not necessary */
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