From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libgomp/config/linux/mips/futex.h | 72 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 libgomp/config/linux/mips/futex.h (limited to 'libgomp/config/linux/mips/futex.h') diff --git a/libgomp/config/linux/mips/futex.h b/libgomp/config/linux/mips/futex.h new file mode 100644 index 000000000..576ada452 --- /dev/null +++ b/libgomp/config/linux/mips/futex.h @@ -0,0 +1,72 @@ +/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc. + Contributed by Ilie Garbacea , Chao-ying Fu . + + 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 + . */ + +/* Provide target-specific access to the futex system call. */ + +#include +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +static inline void +sys_futex0 (int *addr, int op, int val) +{ + register unsigned long __v0 asm("$2") = (unsigned long) SYS_futex; + register unsigned long __a0 asm("$4") = (unsigned long) addr; + register unsigned long __a1 asm("$5") = (unsigned long) op; + register unsigned long __a2 asm("$6") = (unsigned long) val; + register unsigned long __a3 asm("$7") = 0; + + __asm volatile ("syscall" + /* returns $a3 (errno), $v0 (return value) */ + : "=r" (__v0), "=r" (__a3) + /* arguments in v0 (syscall) a0-a3 */ + : "r" (__v0), "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a3) + /* clobbers at, v1, t0-t9, memory */ + : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", "$14", + "$15", "$24", "$25", "memory"); +} + +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); +} + +static inline void +cpu_relax (void) +{ + __asm volatile ("" : : : "memory"); +} + +static inline void +atomic_write_barrier (void) +{ + __sync_synchronize (); +} -- cgit v1.2.3