From 8f3e964987f0a00943e7e5261de250741695fb28 Mon Sep 17 00:00:00 2001
From: Godmar Back <godmar@gmail.com>
Date: Thu, 13 Nov 2008 21:30:41 -0500
Subject: [PATCH] fixed backtrace to work with -O (now conforms to
 http://gcc.gnu.org/onlinedocs/gcc/Return-Address.html )

---
 src/lib/debug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib/debug.c b/src/lib/debug.c
index 1dc1bf8..b4f8c2d 100644
--- a/src/lib/debug.c
+++ b/src/lib/debug.c
@@ -15,8 +15,8 @@ debug_backtrace (void)
   static bool explained;
   void **frame;
   
-  printf ("Call stack:");
-  for (frame = __builtin_frame_address (0);
+  printf ("Call stack: %p", __builtin_return_address (0));
+  for (frame = __builtin_frame_address (1);
        (uintptr_t) frame >= 0x1000 && frame[0] != NULL;
        frame = frame[0]) 
     printf (" %p", frame[1]);
-- 
2.30.2