From 1b20d937f379c03537843cda49fdd7d4fdfbd5ab Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 26 Apr 2001 13:46:43 +0000
Subject: Update.

	* malloc/mcheck.c (mcheck): Call malloc once before setting the
	hooks to allow the internal check hooks to be set up if necessary.
---
 malloc/mcheck.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'malloc')

diff --git a/malloc/mcheck.c b/malloc/mcheck.c
index f17bc0c..971e2e5 100644
--- a/malloc/mcheck.c
+++ b/malloc/mcheck.c
@@ -315,6 +315,10 @@ mcheck (func)
   /* These hooks may not be safely inserted if malloc is already in use.  */
   if (__malloc_initialized <= 0 && !mcheck_used)
     {
+      /* We call malloc() once here to ensure it is initialized.  */
+      void *p = malloc (0);
+      free (p);
+
       old_free_hook = __free_hook;
       __free_hook = freehook;
       old_malloc_hook = __malloc_hook;
-- 
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