From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Thu, 14 Nov 2013 22:31:29 +0000 (+0000)
Subject: runtime: Don't use filename without '/' for backtrace library.
X-Git-Tag: releases/gcc-4.9.0~2776
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=37512c0399662de47eef61e054672968ac07845e;p=thirdparty%2Fgcc.git

runtime: Don't use filename without '/' for backtrace library.

Fixes http://golang.org/issue/6715.

From-SVN: r204828
---

diff --git a/libgo/runtime/go-caller.c b/libgo/runtime/go-caller.c
index 8ca3c7efcd7a..c49704df4163 100644
--- a/libgo/runtime/go-caller.c
+++ b/libgo/runtime/go-caller.c
@@ -101,6 +101,13 @@ __go_get_backtrace_state ()
       const char *filename;
 
       filename = (const char *) runtime_progname ();
+
+      /* If there is no '/' in FILENAME, it was found on PATH, and
+	 might not be the same as the file with the same name in the
+	 current directory.  */
+      if (__builtin_strchr (filename, '/') == NULL)
+	filename = NULL;
+
       back_state = backtrace_create_state (filename, 1, error_callback, NULL);
     }
   runtime_unlock (&back_state_lock);