diff options
| -rw-r--r-- | src/malloc/oldmalloc/malloc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/malloc/oldmalloc/malloc.c b/src/malloc/oldmalloc/malloc.c index a5cbdb68..25d00d44 100644 --- a/src/malloc/oldmalloc/malloc.c +++ b/src/malloc/oldmalloc/malloc.c @@ -481,12 +481,14 @@ void __bin_chunk(struct chunk *self) if (size > RECLAIM && (size^(size-osize)) > size-osize) { uintptr_t a = (uintptr_t)self + SIZE_ALIGN+PAGE_SIZE-1 & -PAGE_SIZE; uintptr_t b = (uintptr_t)next - SIZE_ALIGN & -PAGE_SIZE; + int e = errno; #if 1 __madvise((void *)a, b-a, MADV_DONTNEED); #else __mmap((void *)a, b-a, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0); #endif + errno = e; } unlock_bin(i); @@ -499,7 +501,9 @@ static void unmap_chunk(struct chunk *self) size_t len = CHUNK_SIZE(self) + extra; /* Crash on double free */ if (extra & 1) a_crash(); + int e = errno; __munmap(base, len); + errno = e; } void free(void *p) |