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Diffstat (limited to 'gcc-4.8.3/libitm/barrier.cc')
| -rw-r--r-- | gcc-4.8.3/libitm/barrier.cc | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc-4.8.3/libitm/barrier.cc b/gcc-4.8.3/libitm/barrier.cc new file mode 100644 index 000000000..6d4d00ce6 --- /dev/null +++ b/gcc-4.8.3/libitm/barrier.cc @@ -0,0 +1,44 @@ +/* Copyright (C) 2008-2013 Free Software Foundation, Inc. + Contributed by Richard Henderson <rth@redhat.com>. + + 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 + <http://www.gnu.org/licenses/>. */ + +#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; +} + +CREATE_DISPATCH_FUNCTIONS(GTM::abi_disp()->, ) + |