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/* Copyright (C) 2008-2013 Free Software Foundation, Inc.
Contributed by Richard Henderson <>.
This file is part of the GNU Transactional Memory Library (libitm).
Libitm 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 of the License, or
(at your option) any later version.
Libitm 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
<>. */
#include "libitm_i.h"
using namespace GTM;
bool abi_dispatch::memmove_overlap_check(void *dst, const void *src,
size_t size, ls_modifier dst_mod, ls_modifier src_mod)
if (dst_mod == NONTXNAL || src_mod == NONTXNAL)
if (((uintptr_t)dst <= (uintptr_t)src ?
(uintptr_t)dst + size > (uintptr_t)src :
(uintptr_t)src + size > (uintptr_t)dst))
GTM::GTM_fatal("_ITM_memmove overlapping and t/nt is not allowed");
return false;
return true;