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(ptmalloc_init): Recognize MALLOC_PERTURB_ and call mallopt appropriately.

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This commit is contained in:
Ulrich Drepper 2005-03-08 00:44:05 +00:00
parent 7511232436
commit a5a33449fb
1 changed files with 9 additions and 2 deletions
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9
malloc/arena.c
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@ -482,8 +482,13 @@ ptmalloc_init (void)
s = &envline[7];
break;
case 8:
if (! secure && memcmp (envline, "TOP_PAD_", 8) == 0)
if (! secure)
{
if (memcmp (envline, "TOP_PAD_", 8) == 0)
mALLOPt(M_TOP_PAD, atoi(&envline[9]));
else if (memcmp (envline, "PERTURB_", 8) == 0)
mALLOPt(M_PERTURB, atoi(&envline[9]));
}
break;
case 9:
if (! secure && memcmp (envline, "MMAP_MAX_", 9) == 0)
@ -510,6 +515,8 @@ ptmalloc_init (void)
mALLOPt(M_TRIM_THRESHOLD, atoi(s));
if((s = getenv("MALLOC_TOP_PAD_")))
mALLOPt(M_TOP_PAD, atoi(s));
if((s = getenv("MALLOC_PERTURB_")))
mALLOPt(M_PERTURB, atoi(s));
if((s = getenv("MALLOC_MMAP_THRESHOLD_")))
mALLOPt(M_MMAP_THRESHOLD, atoi(s));
if((s = getenv("MALLOC_MMAP_MAX_")))