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- This comparison shows the changes necessary to convert path
/openrisc/tags/gnu-src/gcc-4.5.1/gcc-4.5.1-or32-1.0rc2/libgomp/config/linux/alpha
- from Rev 273 to Rev 384
- ↔ Reverse comparison
Rev 273 → Rev 384
/futex.h
0,0 → 1,109
/* Copyright (C) 2005, 2008, 2009 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 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. */ |
|
#ifndef SYS_futex |
#define SYS_futex 394 |
#endif |
|
|
static inline void |
futex_wait (int *addr, int val) |
{ |
register long sc_0 __asm__("$0"); |
register long sc_16 __asm__("$16"); |
register long sc_17 __asm__("$17"); |
register long sc_18 __asm__("$18"); |
register long sc_19 __asm__("$19"); |
|
sc_0 = SYS_futex; |
sc_16 = (long) addr; |
sc_17 = gomp_futex_wait; |
sc_18 = val; |
sc_19 = 0; |
__asm volatile ("callsys" |
: "=r" (sc_0), "=r"(sc_19) |
: "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18), "1"(sc_19) |
: "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", |
"$22", "$23", "$24", "$25", "$27", "$28", "memory"); |
if (__builtin_expect (sc_19, 0) && sc_0 == ENOSYS) |
{ |
gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG; |
gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG; |
sc_0 = SYS_futex; |
sc_17 &= ~FUTEX_PRIVATE_FLAG; |
sc_19 = 0; |
__asm volatile ("callsys" |
: "=r" (sc_0), "=r"(sc_19) |
: "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18), |
"1"(sc_19) |
: "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", |
"$22", "$23", "$24", "$25", "$27", "$28", "memory"); |
} |
} |
|
static inline void |
futex_wake (int *addr, int count) |
{ |
register long sc_0 __asm__("$0"); |
register long sc_16 __asm__("$16"); |
register long sc_17 __asm__("$17"); |
register long sc_18 __asm__("$18"); |
register long sc_19 __asm__("$19"); |
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sc_0 = SYS_futex; |
sc_16 = (long) addr; |
sc_17 = gomp_futex_wake; |
sc_18 = count; |
__asm volatile ("callsys" |
: "=r" (sc_0), "=r"(sc_19) |
: "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18) |
: "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", |
"$22", "$23", "$24", "$25", "$27", "$28", "memory"); |
if (__builtin_expect (sc_19, 0) && sc_0 == ENOSYS) |
{ |
gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG; |
gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG; |
sc_0 = SYS_futex; |
sc_17 &= ~FUTEX_PRIVATE_FLAG; |
__asm volatile ("callsys" |
: "=r" (sc_0), "=r"(sc_19) |
: "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18) |
: "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", |
"$22", "$23", "$24", "$25", "$27", "$28", "memory"); |
} |
} |
|
static inline void |
cpu_relax (void) |
{ |
__asm volatile ("" : : : "memory"); |
} |
|
static inline void |
atomic_write_barrier (void) |
{ |
__asm volatile ("wmb" : : : "memory"); |
} |
futex.h
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