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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgcc/] [config/] [arm/] [unwind-arm.h] - Blame information for rev 734

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1 734 jeremybenn
/* Header file for the ARM EABI unwinder
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   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011
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   Free Software Foundation, Inc.
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   Contributed by Paul Brook
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   This file is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by the
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   Free Software Foundation; either version 3, or (at your option) any
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   later version.
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   This file is distributed in the hope that it will be useful, but
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   WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   General Public License for more details.
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   Under Section 7 of GPL version 3, you are granted additional
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   permissions described in the GCC Runtime Library Exception, version
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   3.1, as published by the Free Software Foundation.
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   You should have received a copy of the GNU General Public License and
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   a copy of the GCC Runtime Library Exception along with this program;
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   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
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   <http://www.gnu.org/licenses/>.  */
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/* Language-independent unwinder header public defines.  This contains both
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   ABI defined objects, and GNU support routines.  */
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#ifndef UNWIND_ARM_H
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#define UNWIND_ARM_H
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#include "unwind-arm-common.h"
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#define UNWIND_STACK_REG 13
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/* Use IP as a scratch register within the personality routine.  */
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#define UNWIND_POINTER_REG 12
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#ifdef __cplusplus
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extern "C" {
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#endif
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  /* Decode an R_ARM_TARGET2 relocation.  */
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  static inline _Unwind_Word
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  _Unwind_decode_typeinfo_ptr (_Unwind_Word base, _Unwind_Word ptr)
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    {
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      _Unwind_Word tmp;
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      tmp = *(_Unwind_Word *) ptr;
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      /* Zero values are always NULL.  */
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      if (!tmp)
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        return 0;
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#if (defined(linux) && !defined(__uClinux__)) || defined(__NetBSD__)
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      /* Pc-relative indirect.  */
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#define _GLIBCXX_OVERRIDE_TTYPE_ENCODING (DW_EH_PE_pcrel | DW_EH_PE_indirect)
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      tmp += ptr;
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      tmp = *(_Unwind_Word *) tmp;
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#elif defined(__symbian__) || defined(__uClinux__)
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#define _GLIBCXX_OVERRIDE_TTYPE_ENCODING (DW_EH_PE_absptr)
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      /* Absolute pointer.  Nothing more to do.  */
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#else
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#define _GLIBCXX_OVERRIDE_TTYPE_ENCODING (DW_EH_PE_pcrel)
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      /* Pc-relative pointer.  */
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      tmp += ptr;
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#endif
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      return tmp;
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    }
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  static inline _Unwind_Reason_Code
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  __gnu_unwind_24bit (_Unwind_Context * context, _uw data, int compact)
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    {
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      return _URC_FAILURE;
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    }
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  /* Return the address of the instruction, not the actual IP value.  */
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#define _Unwind_GetIP(context) \
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  (_Unwind_GetGR (context, 15) & ~(_Unwind_Word)1)
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#define _Unwind_SetIP(context, val) \
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  _Unwind_SetGR (context, 15, val | (_Unwind_GetGR (context, 15) & 1))
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#ifdef __cplusplus
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}   /* extern "C" */
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#endif
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#endif /* defined UNWIND_ARM_H */

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