runtime: Don't use filename without '/' for backtrace library.
Fixes http://golang.org/issue/6715.
R=iant
CC=gofrontend-dev
https://golang.org/cl/26440044
diff --git a/libgo/runtime/go-caller.c b/libgo/runtime/go-caller.c
index 8ca3c7e..c49704d 100644
--- a/libgo/runtime/go-caller.c
+++ b/libgo/runtime/go-caller.c
@@ -101,6 +101,13 @@
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);
