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45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
/* Copyright (C) 2008-2015 Free Software Foundation, Inc.
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Contributed by Richard Henderson <rth@redhat.com>.
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This file is part of the GNU Transactional Memory Library (libitm).
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Libitm 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
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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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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#include "libitm_i.h"
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using namespace GTM;
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bool abi_dispatch::memmove_overlap_check(void *dst, const void *src,
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size_t size, ls_modifier dst_mod, ls_modifier src_mod)
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{
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if (dst_mod == NONTXNAL || src_mod == NONTXNAL)
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{
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if (((uintptr_t)dst <= (uintptr_t)src ?
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(uintptr_t)dst + size > (uintptr_t)src :
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(uintptr_t)src + size > (uintptr_t)dst))
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GTM::GTM_fatal("_ITM_memmove overlapping and t/nt is not allowed");
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return false;
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}
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return true;
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}
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CREATE_DISPATCH_FUNCTIONS(GTM::abi_disp()->, )
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