1e874273f8
2011-09-13 Paul Brook <paul@codesourcery.com> gcc/ * config/arm/arm.h (ASM_PREFERRED_EH_DATA_FORMAT): Define. (ARM_TARGET2_DWARF_FORMAT): Provide default definition. * config/arm/linux-eabi.h (ARM_TARGET2_DWARF_FORMAT): Define. * config/arm/symbian.h (ARM_TARGET2_DWARF_FORMAT): Define. * config/arm/uclinux-eabi.h(ARM_TARGET2_DWARF_FORMAT): Define. * config/arm/t-bpabi (EXTRA_HEADERS): Add unwind-arm-common.h. * config/arm/t-symbian (EXTRA_HEADERS): Add unwind-arm-common.h. * config/c6x/c6x.c (c6x_output_file_unwind): Don't rely on dwarf2 code enabling unwind tables. (c6x_debug_unwind_info): New function. (TARGET_ARM_EABI_UNWINDER): Define. (TARGET_DEBUG_UNWIND_INFO): Define. * config/c6x/c6x.h (DWARF_FRAME_RETURN_COLUMN): Define. (TARGET_EXTRA_CFI_SECTION): Remove. * config/c6x/t-c6x-elf (EXTRA_HEADERS): Set. * ginclude/unwind-arm-common.h: New file. libgcc/ * config.host (tic6x-*-*): Add c6x/t-c6x-elf. Set unwind_header. * unwind-c.c (PERSONALITY_FUNCTION): Use UNWIND_POINTER_REG. * unwind-arm-common.inc: New file. * config/arm/unwind-arm.c: Use unwind-arm-common.inc. * config/arm/unwind-arm.h: Use unwind-arm-common.h. (_GLIBCXX_OVERRIDE_TTYPE_ENCODING): Define. * config/c6x/libunwind.S: New file. * config/c6x/pr-support.c: New file. * config/c6x/unwind-c6x.c: New file. * config/c6x/unwind-c6x.h: New file. * config/c6x/t-c6x-elf: New file. libstdc++-v3/ * libsupc++/eh_arm.cc (__cxa_end_cleanup): Add C6X implementation. * libsupc++/eh_call.cc (__cxa_call_unexpected): Set rtti_base. * libsupc++/eh_personality.cc (NO_SIZE_OF_ENCODED_VALUE): Remove __ARM_EABI_UNWINDER__ check. (parse_lsda_header): Check _GLIBCXX_OVERRIDE_TTYPE_ENCODING. (get_ttype_entry): Use generic implementation on ARM EABI. (check_exception_spec): Use _Unwind_decode_typeinfo_ptr and UNWIND_STACK_REG. (PERSONALITY_FUNCTION): Set ttype_base. From-SVN: r178808
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/* 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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