Enhance gdb.lookup_objfile so that it works with a symlinked binary.

gdb/Changelog:

	* objfiles.c (objfile_filename): New function.
	* objfiles.h (objfile_filename): Declare it.
	(objfile_name): Add function comment.
	* python/py-objfile.c (objfpy_lookup_objfile_by_name): Try both the
	bfd file name (which may be realpath'd), and the original name.

gdb/testsuite/ChangeLog:

	* gdb.python/py-objfile.exp: Test gdb.lookup_objfile on symlinked
	binary.

1 files changed, 7 insertions, 1 deletions

diff --git a/gdb/python/py-objfile.c b/gdb/python/py-objfile.c
index bdc483a..378db58 100644
--- a/gdb/python/py-objfile.c
+++ b/gdb/python/py-objfile.c
@@ -438,12 +438,18 @@ objfpy_lookup_objfile_by_name (const char *name)
 
   ALL_OBJFILES (objfile)
     {
+      const char *filename;
+
       if ((objfile->flags & OBJF_NOT_FILENAME) != 0)
 	continue;
       /* Don't return separate debug files.  */
       if (objfile->separate_debug_objfile_backlink != NULL)
 	continue;
-      if (compare_filenames_for_search (objfile_name (objfile), name))
+
+      filename = objfile_filename (objfile);
+      if (filename != NULL && compare_filenames_for_search (filename, name))
+	return objfile;
+      if (compare_filenames_for_search (objfile->original_name, name))
 	return objfile;
     }