diff options
Diffstat (limited to 'gcc-4.4.3/libgomp/config/linux/sparc/futex.h')
-rw-r--r-- | gcc-4.4.3/libgomp/config/linux/sparc/futex.h | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/gcc-4.4.3/libgomp/config/linux/sparc/futex.h b/gcc-4.4.3/libgomp/config/linux/sparc/futex.h deleted file mode 100644 index 214b786f7..000000000 --- a/gcc-4.4.3/libgomp/config/linux/sparc/futex.h +++ /dev/null @@ -1,108 +0,0 @@ -/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc. - Contributed by Jakub Jelinek <jakub@redhat.com>. - - This file is part of the GNU OpenMP Library (libgomp). - - Libgomp 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. - - Libgomp 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/>. */ - -/* Provide target-specific access to the futex system call. */ - -#include <sys/syscall.h> - -static inline long -sys_futex0 (int *addr, int op, int val) -{ - register long int g1 __asm__ ("g1"); - register long int o0 __asm__ ("o0"); - register long int o1 __asm__ ("o1"); - register long int o2 __asm__ ("o2"); - register long int o3 __asm__ ("o3"); - - g1 = SYS_futex; - o0 = (long) addr; - o1 = op; - o2 = val; - o3 = 0; - -#ifdef __arch64__ -# define SYSCALL_STRING "ta\t0x6d; bcs,a,pt %%xcc, 1f; sub %%g0, %%o0, %%o0; 1:" -#else -# define SYSCALL_STRING "ta\t0x10; bcs,a 1f; sub %%g0, %%o0, %%o0; 1:" -#endif - - __asm volatile (SYSCALL_STRING - : "=r" (g1), "=r" (o0) - : "0" (g1), "1" (o0), "r" (o1), "r" (o2), "r" (o3) - : "g2", "g3", "g4", "g5", "g6", - "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", - "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", - "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", - "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", -#ifdef __arch64__ - "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", - "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62", -#endif - "cc", "memory"); - return o0; -} - -static inline void -futex_wait (int *addr, int val) -{ - long err = sys_futex0 (addr, gomp_futex_wait, val); - if (__builtin_expect (err == ENOSYS, 0)) - { - gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG; - gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG; - sys_futex0 (addr, gomp_futex_wait, val); - } -} - -static inline void -futex_wake (int *addr, int count) -{ - long err = sys_futex0 (addr, gomp_futex_wake, count); - if (__builtin_expect (err == ENOSYS, 0)) - { - gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG; - gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG; - sys_futex0 (addr, gomp_futex_wake, count); - } -} - -static inline void -cpu_relax (void) -{ -#if defined __arch64__ || defined __sparc_v9__ - __asm volatile ("membar #LoadLoad" : : : "memory"); -#else - __asm volatile ("" : : : "memory"); -#endif -} - -static inline void -atomic_write_barrier (void) -{ -#if defined __arch64__ || defined __sparc_v9__ - __asm volatile ("membar #StoreStore" : : : "memory"); -#else - __sync_synchronize (); -#endif -} |