From 2f5f40f465c5c1af651727e756fd007fd11f2236 Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@linux-m68k.org>
Date: Sat, 22 Dec 2012 17:24:44 +0100
Subject: mtrace: properly handle realloc (p, 0)

---
 malloc/mtrace.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'malloc')

diff --git a/malloc/mtrace.c b/malloc/mtrace.c
index af3b7f8..e9ccfa2 100644
--- a/malloc/mtrace.c
+++ b/malloc/mtrace.c
@@ -219,8 +219,13 @@ tr_reallochook (ptr, size, caller)
 
   tr_where (caller, info);
   if (hdr == NULL)
-    /* Failed realloc.  */
-    fprintf (mallstream, "! %p %#lx\n", ptr, (unsigned long int) size);
+    {
+      if (size != 0)
+	/* Failed realloc.  */
+	fprintf (mallstream, "! %p %#lx\n", ptr, (unsigned long int) size);
+      else
+	fprintf (mallstream, "- %p\n", ptr);
+    }
   else if (ptr == NULL)
     fprintf (mallstream, "+ %p %#lx\n", hdr, (unsigned long int) size);
   else
-- 
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