4185ae5397
gcc/ * target-def.h (TARGET_CXX_GUARD_TYPE, TARGET_CXX_GUARD_MASK_BIT, TARGET_CXX): Define. (TARGET_INITIALIZER): Use TARGET_CXX. * target.h (struct gcc_target): Add struct cxx. * targhooks.h (default_cxx_guard_type): Add prototype. * targhooks.c (default_cxx_guard_type): New function. * config/arm/arm.c (TARGET_CXX_GUARD_TYPE, TARGET_CXX_GUARD_MASK_BIT): Define. (arm_cxx_guard_type, arm_cxx_guard_mask_bit): New functions. * doc/tm.texi: Document TARGET_CXX_GUARD_TYPE and TARGET_CXX_GUARD_MASK_BIT. gcc/cp/ * decl2.c (get_guard): Call targetm.cxx.guard_type. (get_guard_bits, get_guard_cond): Call targetm.cxx.guard_mask_bit. libstdc++/ * libsupc++/cxxabi.h: Define __ARM_EABI__ (__guard): Use it. * libsupc++/guard.h (__cxa_guard_acquire, __cxa_guard_release): Ditto. From-SVN: r83660
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
// Copyright (C) 2002 Free Software Foundation, Inc.
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//
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// This file is part of GCC.
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//
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// GCC is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// GCC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with GCC; see the file COPYING. If not, write to
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// the Free Software Foundation, 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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// Written by Mark Mitchell, CodeSourcery LLC, <mark@codesourcery.com>
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#include <cxxabi.h>
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// The IA64/generic ABI uses the fist byte of the guard variable.
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// The ARM EABI uses the least significant bit.
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namespace __cxxabiv1
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{
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extern "C"
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int __cxa_guard_acquire (__guard *g)
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{
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#ifdef __ARM_EABI__
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return !(*g & 1);
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#else
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return !*(char *)(g);
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#endif
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}
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extern "C"
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void __cxa_guard_release (__guard *g)
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{
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#ifdef __ARM_EABI__
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*g = 1;
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#else
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*(char *)g = 1;
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#endif
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}
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extern "C"
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void __cxa_guard_abort (__guard *)
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{
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}
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}
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