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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/libitm/common.h | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/libitm/common.h')
-rw-r--r-- | gcc-4.9/libitm/common.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/gcc-4.9/libitm/common.h b/gcc-4.9/libitm/common.h new file mode 100644 index 000000000..72a6618d9 --- /dev/null +++ b/gcc-4.9/libitm/common.h @@ -0,0 +1,65 @@ +/* Copyright (C) 2008-2014 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/>. */ + +/* The following are internal implementation functions and definitions. + To distinguish them from those defined by the Intel ABI, they all + begin with GTM/gtm. */ + +#ifndef COMMON_H +#define COMMON_H 1 + +#define UNUSED __attribute__((unused)) +#define ALWAYS_INLINE __attribute__((always_inline)) +#ifdef HAVE_ATTRIBUTE_VISIBILITY +# define HIDDEN __attribute__((visibility("hidden"))) +#else +# define HIDDEN +#endif + +#define likely(X) __builtin_expect((X) != 0, 1) +#define unlikely(X) __builtin_expect((X), 0) + +namespace GTM HIDDEN { + +// Locally defined protected allocation functions. +// +// To avoid dependency on libstdc++ new/delete, as well as to not +// interfere with the wrapping of the global new/delete we wrap for +// the user in alloc_cpp.cc, use class-local versions that defer +// to malloc/free. Recall that operator new/delete does not go through +// normal lookup and so we cannot simply inject a version into the +// GTM namespace. +// If separate_cl is true, the allocator will try to return memory that is on +// cache lines that are not shared with any object used by another thread. +extern void * xmalloc (size_t s, bool separate_cl = false) + __attribute__((malloc, nothrow)); +extern void * xcalloc (size_t s, bool separate_cl = false) + __attribute__((malloc, nothrow)); +extern void * xrealloc (void *p, size_t s, bool separate_cl = false) + __attribute__((malloc, nothrow)); + +} // namespace GTM + + +#endif // COMMON_H |