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Diffstat (limited to 'malloc/arena.c')
-rw-r--r--malloc/arena.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/malloc/arena.c b/malloc/arena.c
index 8202aaf01b..8db255966d 100644
--- a/malloc/arena.c
+++ b/malloc/arena.c
@@ -482,8 +482,13 @@ ptmalloc_init (void)
s = &envline[7];
break;
case 8:
- if (! secure && memcmp (envline, "TOP_PAD_", 8) == 0)
- mALLOPt(M_TOP_PAD, atoi(&envline[9]));
+ 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_")))