Improve Executable displayed path (PR 15415 regression kind #2)

gdb/
2013-10-13  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Canonicalize directories for EXEC_FILENAME.
	* exec.c (exec_file_attach): Use gdb_realpath_keepfile for
	exec_filename.
	* utils.c (gdb_realpath_keepfile): New function.
	* utils.h (gdb_realpath_keepfile): New declaration.

gdb/testsuite/
2013-10-13  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Canonicalize directories for EXEC_FILENAME.
	* gdb.base/argv0-symlink.exp
	(kept file symbolic link name for info inferiors): New.
	(kept directory symbolic link name): Setup kfail.
	(kept directory symbolic link name for info inferiors): New.

1 files changed, 1 insertions, 1 deletions

diff --git a/gdb/exec.c b/gdb/exec.c
index c7370e3..758cdc1 100644
--- a/gdb/exec.c
+++ b/gdb/exec.c
@@ -224,7 +224,7 @@ exec_file_attach (char *filename, int from_tty)
 	}
 
       gdb_assert (exec_filename == NULL);
-      exec_filename = xstrdup (scratch_pathname);
+      exec_filename = gdb_realpath_keepfile (scratch_pathname);
 
       if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching))
 	{