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Diffstat (limited to 'malloc/mcheck.c')
-rw-r--r--malloc/mcheck.c41
1 files changed, 29 insertions, 12 deletions
diff --git a/malloc/mcheck.c b/malloc/mcheck.c
index 1a80a56570..47d35f1f1f 100644
--- a/malloc/mcheck.c
+++ b/malloc/mcheck.c
@@ -28,9 +28,10 @@
#endif
/* Old hook values. */
-static void (*old_free_hook) __P ((__ptr_t ptr));
-static __ptr_t (*old_malloc_hook) __P ((__malloc_size_t size));
-static __ptr_t (*old_realloc_hook) __P ((__ptr_t ptr, __malloc_size_t size));
+static void (*old_free_hook) __P ((__ptr_t ptr, __const __ptr_t));
+static __ptr_t (*old_malloc_hook) __P ((__malloc_size_t size, const __ptr_t));
+static __ptr_t (*old_realloc_hook) __P ((__ptr_t ptr, __malloc_size_t size,
+ __const __ptr_t));
/* Function to call when something awful happens. */
static void (*abortfunc) __P ((enum mcheck_status));
@@ -91,10 +92,11 @@ checkhdr (hdr)
return status;
}
-static void freehook __P ((__ptr_t));
+static void freehook __P ((__ptr_t, const __ptr_t));
static void
-freehook (ptr)
+freehook (ptr, caller)
__ptr_t ptr;
+ const __ptr_t caller;
{
if (ptr)
{
@@ -105,19 +107,27 @@ freehook (ptr)
ptr = (__ptr_t) hdr;
}
__free_hook = old_free_hook;
- free (ptr);
+ if (old_free_hook != NULL)
+ (*old_free_hook) (ptr, caller);
+ else
+ free (ptr);
__free_hook = freehook;
}
-static __ptr_t mallochook __P ((__malloc_size_t));
+static __ptr_t mallochook __P ((__malloc_size_t, const __ptr_t));
static __ptr_t
-mallochook (size)
+mallochook (size, caller)
__malloc_size_t size;
+ const __ptr_t caller;
{
struct hdr *hdr;
__malloc_hook = old_malloc_hook;
- hdr = (struct hdr *) malloc (sizeof (struct hdr) + size + 1);
+ if (old_malloc_hook != NULL)
+ hdr = (struct hdr *) (*old_malloc_hook) (sizeof (struct hdr) + size + 1,
+ caller);
+ else
+ hdr = (struct hdr *) malloc (sizeof (struct hdr) + size + 1);
__malloc_hook = mallochook;
if (hdr == NULL)
return NULL;
@@ -129,11 +139,12 @@ mallochook (size)
return (__ptr_t) (hdr + 1);
}
-static __ptr_t reallochook __P ((__ptr_t, __malloc_size_t));
+static __ptr_t reallochook __P ((__ptr_t, __malloc_size_t, const __ptr_t));
static __ptr_t
-reallochook (ptr, size)
+reallochook (ptr, size, caller)
__ptr_t ptr;
__malloc_size_t size;
+ const __ptr_t caller;
{
struct hdr *hdr;
__malloc_size_t osize;
@@ -155,7 +166,13 @@ reallochook (ptr, size)
__free_hook = old_free_hook;
__malloc_hook = old_malloc_hook;
__realloc_hook = old_realloc_hook;
- hdr = (struct hdr *) realloc ((__ptr_t) hdr, sizeof (struct hdr) + size + 1);
+ if (old_realloc_hook != NULL)
+ hdr = (struct hdr *) (*old_realloc_hook) ((__ptr_t) hdr,
+ sizeof (struct hdr) + size + 1,
+ caller);
+ else
+ hdr = (struct hdr *) realloc ((__ptr_t) hdr,
+ sizeof (struct hdr) + size + 1);
__free_hook = freehook;
__malloc_hook = mallochook;
__realloc_hook = reallochook;