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/* Header file for the C6X EABI unwinder
Copyright (C) 2011-2013 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 */
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