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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/powerpc
- from Rev 273 to Rev 384
- ↔ Reverse comparison
Rev 273 → Rev 384
/futex.h
0,0 → 1,92
/* 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. */ |
|
#include <sys/syscall.h> |
|
static inline long |
sys_futex0 (int *addr, int op, int val) |
{ |
register long int r0 __asm__ ("r0"); |
register long int r3 __asm__ ("r3"); |
register long int r4 __asm__ ("r4"); |
register long int r5 __asm__ ("r5"); |
register long int r6 __asm__ ("r6"); |
|
r0 = SYS_futex; |
r3 = (long) addr; |
r4 = op; |
r5 = val; |
r6 = 0; |
|
/* ??? The powerpc64 sysdep.h file clobbers ctr; the powerpc32 sysdep.h |
doesn't. It doesn't much matter for us. In the interest of unity, |
go ahead and clobber it always. */ |
|
__asm volatile ("sc; mfcr %0" |
: "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6) |
: "r"(r0), "r"(r3), "r"(r4), "r"(r5), "r"(r6) |
: "r7", "r8", "r9", "r10", "r11", "r12", |
"cr0", "ctr", "memory"); |
if (__builtin_expect (r0 & (1 << 28), 0)) |
return r3; |
return 0; |
} |
|
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) |
{ |
__asm volatile ("" : : : "memory"); |
} |
|
static inline void |
atomic_write_barrier (void) |
{ |
__asm volatile ("eieio" : : : "memory"); |
} |
futex.h
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+native
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Index: mutex.h
===================================================================
--- mutex.h (nonexistent)
+++ mutex.h (revision 384)
@@ -0,0 +1,2 @@
+/* On PowerPC __sync_lock_test_and_set isn't a full barrier. */
+#include "config/linux/ia64/mutex.h"
mutex.h
Property changes :
Added: svn:eol-style
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+native
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Added: svn:keywords
## -0,0 +1 ##
+Id
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