From 5f8b35ad729740cab1cb8c884deb405dcc758683 Mon Sep 17 00:00:00 2001 From: Ian Lynagh Date: Mon, 18 Dec 2006 15:24:23 +0000 Subject: [PATCH] Don't overwrite old memory with 0xaa when doing a realloc --- rts/RtsUtils.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/rts/RtsUtils.c b/rts/RtsUtils.c index a2a2919..a62a459 100644 --- a/rts/RtsUtils.c +++ b/rts/RtsUtils.c @@ -136,7 +136,7 @@ static void addAllocation(void *addr, size_t len) { } } -static void removeAllocation(void *addr) { +static void removeAllocation(void *addr, int overwrite_with_aa) { Allocated *prev, *a; if (addr == NULL) { @@ -150,7 +150,9 @@ static void removeAllocation(void *addr) { while (a != NULL) { if (a->addr == addr) { prev->next = a->next; - memset(addr, 0xaa, a->len); + if (overwrite_with_aa) { + memset(addr, 0xaa, a->len); + } free(a); RELEASE_LOCK(&allocator_mutex); return; @@ -210,7 +212,7 @@ stgReallocBytes (void *p, int n, char *msg) stg_exit(EXIT_INTERNAL_ERROR); } #if defined(DEBUG) - removeAllocation(p); + removeAllocation(p, 0); addAllocation(space, n2); #endif return space; @@ -239,7 +241,7 @@ void stgFree(void* p) { #if defined(DEBUG) - removeAllocation(p); + removeAllocation(p, 1); #endif free(p); } -- 1.7.10.4