aboutsummaryrefslogtreecommitdiff
path: root/malloc/hooks.c
diff options
context:
space:
mode:
Diffstat (limited to 'malloc/hooks.c')
-rw-r--r--malloc/hooks.c52
1 files changed, 48 insertions, 4 deletions
diff --git a/malloc/hooks.c b/malloc/hooks.c
index cf6642c..020657a 100644
--- a/malloc/hooks.c
+++ b/malloc/hooks.c
@@ -106,7 +106,18 @@ __malloc_check_init()
__realloc_hook = realloc_check;
__memalign_hook = memalign_check;
if(check_action & 1)
- fprintf(stderr, "malloc: using debugging hooks\n");
+ {
+#ifdef _LIBC
+ _IO_flockfile (stderr);
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+#endif
+ fprintf(stderr, "malloc: using debugging hooks\n");
+#ifdef _LIBC
+ ((_IO_FILE *) stderr)->_flags2 |= old_flags2;
+ _IO_funlockfile (stderr);
+#endif
+ }
}
/* A simple, standard set of debugging hooks. Overhead is `only' one
@@ -224,7 +235,18 @@ top_check()
t == initial_top(&main_arena)) return 0;
if(check_action & 1)
- fprintf(stderr, "malloc: top chunk is corrupt\n");
+ {
+#ifdef _LIBC
+ _IO_flockfile (stderr);
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+#endif
+ fprintf(stderr, "malloc: top chunk is corrupt\n");
+#ifdef _LIBC
+ ((_IO_FILE *) stderr)->_flags2 |= old_flags2;
+ _IO_funlockfile (stderr);
+#endif
+ }
if(check_action & 2)
abort();
@@ -278,7 +300,18 @@ free_check(mem, caller) Void_t* mem; const Void_t *caller;
if(!p) {
(void)mutex_unlock(&main_arena.mutex);
if(check_action & 1)
- fprintf(stderr, "free(): invalid pointer %p!\n", mem);
+ {
+#ifdef _LIBC
+ _IO_flockfile (stderr);
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+#endif
+ fprintf(stderr, "free(): invalid pointer %p!\n", mem);
+#ifdef _LIBC
+ ((_IO_FILE *) stderr)->_flags2 |= old_flags2;
+ _IO_funlockfile (stderr);
+#endif
+ }
if(check_action & 2)
abort();
return;
@@ -315,7 +348,18 @@ realloc_check(oldmem, bytes, caller)
(void)mutex_unlock(&main_arena.mutex);
if(!oldp) {
if(check_action & 1)
- fprintf(stderr, "realloc(): invalid pointer %p!\n", oldmem);
+ {
+#ifdef _LIBC
+ _IO_flockfile (stderr);
+ int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
+ ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;
+#endif
+ fprintf(stderr, "realloc(): invalid pointer %p!\n", oldmem);
+#ifdef _LIBC
+ ((_IO_FILE *) stderr)->_flags2 |= old_flags2;
+ _IO_funlockfile (stderr);
+#endif
+ }
if(check_action & 2)
abort();
return malloc_check(bytes, NULL);