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339dbf0e39
(__pthread_rwlock_rdlock): Don't use non SH-3/4 instruction.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_wrlock.S:
(__pthread_rwlock_wrlock): Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S:
(pthread_rwlock_timedrdlock): Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedwrlock.S:
(pthread_rwlock_timedwrlock): Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S:
(__pthread_rwlock_unlock): Likewise.
2007-06-10 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/sh/tcb-offsets.sym: Add PRIVATE_FUTEX.
* sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: Include endian.h.
Split __flags into __flags, __shared, __pad1 and __pad2.
* sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S: Use private
futexes if they are available.
* sysdeps/unix/sysv/linux/sh/lowlevellock.S: Adjust so that change
in libc-lowlevellock.S allow using private futexes.
* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Define
FUTEX_PRIVATE_FLAG. Add additional parameter to lll_futex_wait,
lll_futex_timed_wait and lll_futex_wake. Change lll_futex_wait
to call lll_futex_timed_wait. Add lll_private_futex_wait,
lll_private_futex_timed_wait and lll_private_futex_wake.
(lll_robust_mutex_unlock): Fix typo.
* sysdeps/unix/sysv/linux/sh/pthread_barrier_wait.S: Use private
field in futex command setup.
* sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S: Use
COND_NWAITERS_SHIFT instead of COND_CLOCK_BITS.
* sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S: Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_once.S: Use private futexes
if they are available. Remove clear_once_control.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_rdlock.S: Use private
futexes if they are available.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S: Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedwrlock.S: Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S: Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_rwlock_wrlock.S: Likewise.
* sysdeps/unix/sysv/linux/sh/sem_post.S: Add private futex support.
Wake only when there are waiters.
* sysdeps/unix/sysv/linux/sh/sem_wait.S: Add private futex
support. Indicate that there are waiters. Remove unnecessary
extra cancellation test.
* sysdeps/unix/sysv/linux/sh/sem_timedwait.S: Likewise. Removed
left-over duplication of __sem_wait_cleanup.
93 lines
2.0 KiB
ArmAsm
93 lines
2.0 KiB
ArmAsm
/* Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#include <shlib-compat.h>
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#include <pthread-errnos.h>
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#include <structsem.h>
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#include "lowlevel-atomic.h"
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#define SYS_gettimeofday __NR_gettimeofday
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#define SYS_futex 240
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#define FUTEX_WAIT 0
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#define FUTEX_WAKE 1
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.text
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.globl __new_sem_post
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.type __new_sem_post,@function
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.align 5
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__new_sem_post:
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mov #1, r3
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XADD (r3, @(VALUE,r4), r2)
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mov.l @(NWAITERS,r4), r2
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tst r2, r2
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bt 2f
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mov #FUTEX_WAKE, r5
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mov.l @(PRIVATE,r4), r1
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or r1, r5
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mov #1, r6
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mov #0, r7
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mov #SYS_futex, r3
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extu.b r3, r3
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trapa #0x14
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SYSCALL_INST_PAD
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cmp/pz r0
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bf 1f
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2:
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rts
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mov #0, r0
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1:
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mov #EINVAL, r2
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mova .Lgot3, r0
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mov.l .Lgot3, r12
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add r0, r12
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#if USE___THREAD
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mov.l .Lerrno3, r0
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stc gbr, r1
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mov.l @(r0, r12), r0
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add r1, r0
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#else
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mov.l .Lerrloc3, r1
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bsrf r1
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nop
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.Lerrloc3b:
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#endif
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mov.l r2, @r0
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lds.l @r15+, pr
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mov.l @r15+, r12
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rts
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mov #-1, r0
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.align 2
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.Lgot3:
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.long _GLOBAL_OFFSET_TABLE_
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#if USE___THREAD
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.Lerrno3:
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.long errno@GOTTPOFF
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#else
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.Lerrloc3:
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.long __errno_location@PLT-(.Lerrloc3b-.)
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#endif
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.size __new_sem_post,.-__new_sem_post
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versioned_symbol(libpthread, __new_sem_post, sem_post, GLIBC_2_1)
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