From d5dff793af80b6534e9fb2e4f0301993bd209a4f Mon Sep 17 00:00:00 2001
From: Paul Pluzhnikov <ppluzhnikov@google.com>
Date: Sat, 15 Aug 2015 11:42:43 -0700
Subject: Fix BZ #18084 -- backtrace (..., 0) dumps core on x86. Other
 architectures also had bugs, or did unnecessary work.

---
 sysdeps/microblaze/backtrace.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'sysdeps/microblaze/backtrace.c')

diff --git a/sysdeps/microblaze/backtrace.c b/sysdeps/microblaze/backtrace.c
index 24e827ac39..c043ba7681 100644
--- a/sysdeps/microblaze/backtrace.c
+++ b/sysdeps/microblaze/backtrace.c
@@ -114,6 +114,9 @@ __backtrace (void **array, int size)
   int count;
   int rc = 0;
 
+  if (size <= 0)
+    return 0;
+
   __asm__ __volatile__ ("mfs %0, rpc"
                         : "=r"(pc));
 
-- 
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