Add support for stack unwinding using the ARM32 specific EXIDX format.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14217 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_debuginfo/priv_readexidx.h b/coregrind/m_debuginfo/priv_readexidx.h
new file mode 100644
index 0000000..8b21ffb
--- /dev/null
+++ b/coregrind/m_debuginfo/priv_readexidx.h
@@ -0,0 +1,50 @@
+/* -*- mode: C; c-basic-offset: 3; -*- */
+
+/*--------------------------------------------------------------------*/
+/*--- Reading of ARM(32) EXIDX unwind information                  ---*/
+/*--                                              priv_readexidx.h ---*/
+/*--------------------------------------------------------------------*/
+
+/*
+   This file is part of Valgrind, a dynamic binary instrumentation
+   framework.
+
+   Copyright (C) 2014-2014 Mozilla Foundation
+
+   This program 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 2 of the
+   License, or (at your option) any later version.
+
+   This program 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.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307, USA.
+
+   The GNU General Public License is contained in the file COPYING.
+*/
+
+/* Contributed by Julian Seward <jseward@acm.org> */
+
+#ifndef __PRIV_READEXIDX_H
+#define __PRIV_READEXIDX_H
+
+#include "pub_core_debuginfo.h"   // DebugInfo
+
+extern
+void ML_(read_exidx) ( /*MOD*/DebugInfo* di,
+                       UChar*   exidx_img, SizeT exidx_size,
+                       UChar*   extab_img, SizeT extab_size,
+                       Addr     text_last_svma,
+                       PtrdiffT text_bias );
+
+#endif /* ndef __PRIV_READEXIDX_H */
+
+/*--------------------------------------------------------------------*/
+/*--- end                                         priv_readexidx.h ---*/
+/*--------------------------------------------------------------------*/