diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/libgomp/config/linux/x86/futex.h')
-rw-r--r-- | gcc-4.2.1-5666.3/libgomp/config/linux/x86/futex.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/gcc-4.2.1-5666.3/libgomp/config/linux/x86/futex.h b/gcc-4.2.1-5666.3/libgomp/config/linux/x86/futex.h deleted file mode 100644 index 4f9aac2dd..000000000 --- a/gcc-4.2.1-5666.3/libgomp/config/linux/x86/futex.h +++ /dev/null @@ -1,110 +0,0 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. - Contributed by Richard Henderson <rth@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 Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, 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 Lesser General Public License for - more details. - - You should have received a copy of the GNU Lesser General Public License - along with libgomp; see the file COPYING.LIB. If not, write to the - Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301, USA. */ - -/* As a special exception, if you link this library with other files, some - of which are compiled with GCC, to produce an executable, this library - 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. */ - -/* Provide target-specific access to the futex system call. */ - -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#ifdef __LP64__ -# ifndef SYS_futex -# define SYS_futex 202 -# endif - -static inline void -futex_wait (int *addr, int val) -{ - register long r10 __asm__("%r10") = 0; - long res; - - __asm volatile ("syscall" - : "=a" (res) - : "0"(SYS_futex), "D" (addr), "S"(FUTEX_WAIT), - "d"(val), "r"(r10) - : "r11", "rcx", "memory"); -} - -static inline void -futex_wake (int *addr, int count) -{ - long res; - - __asm volatile ("syscall" - : "=a" (res) - : "0"(SYS_futex), "D" (addr), "S"(FUTEX_WAKE), "d"(count) - : "r11", "rcx", "memory"); -} -#else -# ifndef SYS_futex -# define SYS_futex 240 -# endif - -# ifdef __PIC__ - -static inline void -sys_futex0 (int *addr, int op, int val) -{ - long res; - - __asm volatile ("xchgl\t%%ebx, %2\n\t" - "int\t$0x80\n\t" - "xchgl\t%%ebx, %2" - : "=a" (res) - : "0"(SYS_futex), "r" (addr), "c"(op), - "d"(val), "S"(0) - : "memory"); -} - -# else - -static inline void -sys_futex0 (int *addr, int op, int val) -{ - long res; - - __asm volatile ("int $0x80" - : "=a" (res) - : "0"(SYS_futex), "b" (addr), "c"(op), - "d"(val), "S"(0) - : "memory"); -} - -# endif /* __PIC__ */ - -static inline void -futex_wait (int *addr, int val) -{ - sys_futex0 (addr, FUTEX_WAIT, val); -} - -static inline void -futex_wake (int *addr, int count) -{ - sys_futex0 (addr, FUTEX_WAKE, count); -} - -#endif /* __LP64__ */ |