| /* |
| Copyright 2005-2010 Intel Corporation. All Rights Reserved. |
| |
| This file is part of Threading Building Blocks. |
| |
| Threading Building Blocks is free software; you can redistribute it |
| and/or modify it under the terms of the GNU General Public License |
| version 2 as published by the Free Software Foundation. |
| |
| Threading Building Blocks 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. |
| |
| You should have received a copy of the GNU General Public License |
| along with Threading Building Blocks; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| As a special exception, you may use this file as part of a free software |
| library without restriction. Specifically, if other files instantiate |
| templates or use macros or inline functions from this file, or you compile |
| this file and link it with other files to produce an executable, this |
| file does not by itself cause the resulting executable to be covered by |
| the GNU General Public License. This exception does not however |
| invalidate any other reasons why the executable file might be covered by |
| the GNU General Public License. |
| */ |
| |
| #include <stdint.h> |
| #include <sys/atomic_op.h> |
| |
| /* This file must be compiled with gcc. The IBM compiler doesn't seem to |
| support inline assembly statements (October 2007). */ |
| |
| #ifdef __GNUC__ |
| |
| int32_t __TBB_machine_cas_32 (volatile void* ptr, int32_t value, int32_t comparand) { |
| __asm__ __volatile__ ("sync\n"); /* memory release operation */ |
| compare_and_swap ((atomic_p) ptr, &comparand, value); |
| __asm__ __volatile__ ("sync\n"); /* memory acquire operation */ |
| return comparand; |
| } |
| |
| int64_t __TBB_machine_cas_64 (volatile void* ptr, int64_t value, int64_t comparand) { |
| __asm__ __volatile__ ("sync\n"); /* memory release operation */ |
| compare_and_swaplp ((atomic_l) ptr, &comparand, value); |
| __asm__ __volatile__ ("sync\n"); /* memory acquire operation */ |
| return comparand; |
| } |
| |
| void __TBB_machine_flush () { |
| __asm__ __volatile__ ("sync\n"); |
| } |
| |
| #endif /* __GNUC__ */ |
