1 files changed, 45 insertions, 0 deletions
diff --git a/gcc/config/cris/cris_abi_symbol.c b/gcc/config/cris/cris_abi_symbol.c
new file mode 100644
index 000000000..db9db2cfe
--- /dev/null
+++ b/gcc/config/cris/cris_abi_symbol.c
@@ -0,0 +1,45 @@
+/* Define symbol to recognize CRIS ABI version 2, for a.out use.
+   Contributed by Axis Communications.
+   Written by Hans-Peter Nilsson <hp@axis.se>, c:a 1992.
+
+   Copyright (C) 2000, 2001, 2003, 2009 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 3, or (at your option) any
+later version.
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "tconfig.h"
+#include "tm.h"
+
+#ifdef __AOUT__
+
+/* ELF support was not released before the ABI was changed, so we
+   restrict this awkwardness to a.out.  This symbol is for gdb to
+   recognize, so it can debug both old and new programs successfully.  */
+__asm__ (".global " CRIS_ABI_VERSION_SYMBOL_STRING);
+__asm__ (".set " CRIS_ABI_VERSION_SYMBOL_STRING ",0");
+
+#else  /* not __AOUT__ */
+
+/* The file must not be empty (declaration/definition-wise) according to
+   ISO, IIRC. */
+extern int _Dummy;
+
+#endif /* not __AOUT__ */