From e9c4fe93b3855239752819303ca377dff0ed0553 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Fri, 28 Oct 2016 16:26:57 +0200 Subject: malloc: Use accessors for chunk metadata access This change allows us to change the encoding of these struct members in a centralized fashion. --- malloc/hooks.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'malloc/hooks.c') diff --git a/malloc/hooks.c b/malloc/hooks.c index ecfe9c1b86..12995d3f0c 100644 --- a/malloc/hooks.c +++ b/malloc/hooks.c @@ -192,7 +192,7 @@ mem2chunk_check (void *mem, unsigned char **magic_p) ((char *) p < mp_.sbrk_base || ((char *) p + sz) >= (mp_.sbrk_base + main_arena.system_mem))) || sz < MINSIZE || sz & MALLOC_ALIGN_MASK || !inuse (p) || - (!prev_inuse (p) && (p->prev_size & MALLOC_ALIGN_MASK || + (!prev_inuse (p) && ((prev_size (p) & MALLOC_ALIGN_MASK) != 0 || (contig && (char *) prev_chunk (p) < mp_.sbrk_base) || next_chunk (prev_chunk (p)) != p))) return NULL; @@ -215,9 +215,9 @@ mem2chunk_check (void *mem, unsigned char **magic_p) offset != 0x20 && offset != 0x40 && offset != 0x80 && offset != 0x100 && offset != 0x200 && offset != 0x400 && offset != 0x800 && offset != 0x1000 && offset < 0x2000) || - !chunk_is_mmapped (p) || (p->size & PREV_INUSE) || - ((((unsigned long) p - p->prev_size) & page_mask) != 0) || - ((p->prev_size + sz) & page_mask) != 0) + !chunk_is_mmapped (p) || prev_inuse (p) || + ((((unsigned long) p - prev_size (p)) & page_mask) != 0) || + ((prev_size (p) + sz) & page_mask) != 0) return NULL; for (sz -= 1; (c = ((unsigned char *) p)[sz]) != magic; sz -= c) -- cgit v1.2.3