1 files changed, 70 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/c6x/unwind-c6x.h b/gcc-4.9/libgcc/config/c6x/unwind-c6x.h
new file mode 100644
index 000000000..258a035b8
--- /dev/null
+++ b/gcc-4.9/libgcc/config/c6x/unwind-c6x.h
@@ -0,0 +1,70 @@
+/* Header file for the C6X EABI unwinder
+   Copyright (C) 2011-2014 Free Software Foundation, Inc.
+
+   This file 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/>.  */
+
+/* Language-independent unwinder header public defines.  This contains both
+   ABI defined objects, and GNU support routines.  */
+
+#ifndef UNWIND_C6X_H
+#define UNWIND_C6X_H
+
+/* Not really the ARM EABI, but pretty close.  */
+#include "unwind-arm-common.h"
+
+#define UNWIND_STACK_REG 31
+/* Use A0 as a scratch register within the personality routine.  */
+#define UNWIND_POINTER_REG 0
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  _Unwind_Reason_Code __gnu_unwind_24bit (_Unwind_Context *, _uw, int);
+
+  /* Decode an EH table reference to a typeinfo object.  */
+  static inline _Unwind_Word
+  _Unwind_decode_typeinfo_ptr (_Unwind_Ptr base, _Unwind_Word ptr)
+    {
+      _Unwind_Word tmp;
+
+      tmp = *(_Unwind_Word *) ptr;
+      /* Zero values are always NULL.  */
+      if (!tmp)
+	return 0;
+
+      /* SB-relative indirect.  Propagate the bottom 2 bits, which can
+	 contain referenceness information in gnu unwinding tables.  */
+      tmp += base;
+      tmp = *(_Unwind_Word *) (tmp & ~(_Unwind_Word)3) | (tmp & 3);
+      return tmp;
+    }
+
+#define _Unwind_GetIP(context) \
+  (_Unwind_GetGR (context, 33))
+
+
+#define _Unwind_SetIP(context, val) \
+  _Unwind_SetGR (context, 33, val)
+
+#ifdef __cplusplus
+}   /* extern "C" */
+#endif
+
+#endif /* defined UNWIND_ARM_H */