diff options
Diffstat (limited to 'libstdc++-v3/src/c++11/compatibility-chrono.cc')
| -rw-r--r-- | libstdc++-v3/src/c++11/compatibility-chrono.cc | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/libstdc++-v3/src/c++11/compatibility-chrono.cc b/libstdc++-v3/src/c++11/compatibility-chrono.cc new file mode 100644 index 00000000000..ada0946619b --- /dev/null +++ b/libstdc++-v3/src/c++11/compatibility-chrono.cc @@ -0,0 +1,58 @@ +// Compatibility symbols for previous versions, C++0x bits -*- C++ -*- + +// Copyright (C) 2013 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library 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, or (at your option) +// any later version. + +// This library 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/>. + +#define _GLIBCXX_COMPATIBILITY_CXX0X +#include <bits/c++config.h> + +#if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \ + && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE)\ + && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT) + +#define steady_clock steady_clockXX +#include "chrono.cc" + +// The rename syntax for default exported names is +// asm (".symver name1,exportedname@GLIBCXX_3.4.17") +// asm (".symver name2,exportedname@@GLIBCXX_3.4.19") +// In the future, GLIBCXX_ABI > 6 should remove all uses of +// _GLIBCXX_*_SYMVER macros in this file. + +#define _GLIBCXX_3_4_17_SYMVER(XXname, name) \ + extern "C" void \ + _X##name() \ + __attribute__ ((alias(#XXname))); \ + asm (".symver " "_X" #name "," #name "@GLIBCXX_3.4.17"); + +#define _GLIBCXX_3_4_19_SYMVER(XXname, name) \ + extern "C" void \ + _Y##name() \ + __attribute__ ((alias(#XXname))); \ + asm (".symver " "_Y" #name "," #name "@@GLIBCXX_3.4.19"); + +_GLIBCXX_3_4_17_SYMVER(_ZNSt6chrono14steady_clockXX3nowEv, + _ZNSt6chrono12steady_clock3nowEv) +_GLIBCXX_3_4_19_SYMVER(_ZNSt6chrono14steady_clockXX3nowEv, + _ZNSt6chrono12steady_clock3nowEv) + +#endif |