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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2017-02-08 11:18:23 +0530
committerSiddhesh Poyarekar <siddhesh@sourceware.org>2017-02-08 14:17:17 +0530
commit8cbc826c37c0221ada65a7a622fe079b4e89a4b0 (patch)
tree598314eb1d2c9bb8da92f7c7f4cc25caf2cc31b4 /malloc
parent3f67d1a7021ed3184830511636a0867faec730fe (diff)
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Fix getting tunable values on big-endian (BZ #21109)
The code to set value passed a tunable_val_t, which when cast to
int32_t on big-endian gives the wrong value.  Instead, use
tunable_val_t.numval instead, which can then be safely cast into
int32_t.
Diffstat (limited to 'malloc')
-rw-r--r--malloc/arena.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/malloc/arena.c b/malloc/arena.c
index b91d7d6b16..d49e4a21c8 100644
--- a/malloc/arena.c
+++ b/malloc/arena.c
@@ -212,9 +212,9 @@ __malloc_fork_unlock_child (void)
 #if HAVE_TUNABLES
 static inline int do_set_mallopt_check (int32_t value);
 void
-DL_TUNABLE_CALLBACK (set_mallopt_check) (void *valp)
+DL_TUNABLE_CALLBACK (set_mallopt_check) (tunable_val_t *valp)
 {
-  int32_t value = *(int32_t *) valp;
+  int32_t value = (int32_t) valp->numval;
   do_set_mallopt_check (value);
   if (check_action != 0)
     __malloc_check_init ();
@@ -223,9 +223,9 @@ DL_TUNABLE_CALLBACK (set_mallopt_check) (void *valp)
 # define DL_TUNABLE_CALLBACK_FNDECL(__name, __type) \
 static inline int do_ ## __name (__type value);				      \
 void									      \
-DL_TUNABLE_CALLBACK (__name) (void *valp)				      \
+DL_TUNABLE_CALLBACK (__name) (tunable_val_t *valp)			      \
 {									      \
-  __type value = *(__type *) valp;					      \
+  __type value = (__type) (valp)->numval;				      \
   do_ ## __name (value);						      \
 }