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authorUlrich Drepper <drepper@redhat.com>2003-02-10 09:24:12 +0000
committerUlrich Drepper <drepper@redhat.com>2003-02-10 09:24:12 +0000
commita54e8d33d17f6197ac629ac86e3381643b802bec (patch)
treee876d442ce7cdb13eca46ff57278a81d0022bf61 /nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S
parentf954eb1691045c888bfd8eab4ea4e25847f26c11 (diff)
downloadglibc-a54e8d33d17f6197ac629ac86e3381643b802bec.tar.gz
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Update.
2003-02-08  kaz Kojima  <kkojima@rr.iij4u.or.jp>

	* sysdeps/sh/Makefile: New file.
	* sysdeps/sh/bits/atomic.h: New file.
	* sysdeps/sh/pthread_spin_init.c: New file.
	* sysdeps/sh/pthread_spin_lock.c: New file.
	* sysdeps/sh/pthread_spin_trylock.S: New file.
	* sysdeps/sh/pthread_spin_unlock.S: New file.
	* sysdeps/sh/pthreaddef.h: New file.
	* sysdeps/sh/tcb-offsets.sym: New file.
	* sysdeps/sh/td_ta_map_lwp2thr.c: New file.
	* sysdeps/sh/tls.h: New file.
	* sysdeps/unix/sysv/linux/sh/bits/pthreadtypes.h: New file.
	* sysdeps/unix/sysv/linux/sh/bits/semaphore.h: New file.
	* sysdeps/unix/sysv/linux/sh/createthread.c: New file.
	* sysdeps/unix/sysv/linux/sh/fork.c: New file.
	* sysdeps/unix/sysv/linux/sh/libc-lowlevellock.S: New file.
	* sysdeps/unix/sysv/linux/sh/libc-lowlevelmutex.S: New file.
	* sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h: New file.
	* sysdeps/unix/sysv/linux/sh/lowlevelcond.h: New file.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.S: New file.
	* sysdeps/unix/sysv/linux/sh/lowlevellock.h: New file.
	* sysdeps/unix/sysv/linux/sh/lowlevelmutex.S: New file.
	* sysdeps/unix/sysv/linux/sh/lowlevelrwlock.h: New file.
	* sysdeps/unix/sysv/linux/sh/pt-initfini.c: New file.
	* sysdeps/unix/sysv/linux/sh/pt-vfork.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_barrier_wait.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_cond_broadcast.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_cond_signal.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_once.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_rdlock.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedwrlock.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S: New file.
	* sysdeps/unix/sysv/linux/sh/pthread_rwlock_wrlock.S: New file.
	* sysdeps/unix/sysv/linux/sh/sem_post.S: New file.
	* sysdeps/unix/sysv/linux/sh/sem_timedwait.S: New file.
	* sysdeps/unix/sysv/linux/sh/sem_trywait.S: New file.
	* sysdeps/unix/sysv/linux/sh/sem_wait.S: New file.
	* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: New file.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S178
1 files changed, 178 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S b/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S
new file mode 100644
index 0000000000..741d66383f
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S
@@ -0,0 +1,178 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library 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.
+
+   The GNU C Library 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 the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#include <shlib-compat.h>
+#include "lowlevel-atomic.h"
+
+
+#define SYS_gettimeofday	__NR_gettimeofday
+#define SYS_futex		240
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+
+#define EINTR			4
+#define EAGAIN			11
+#define EWOULDBLOCK		EAGAIN
+#define EINVAL			22
+#define ETIMEDOUT		110
+
+	.text
+
+	.globl	sem_timedwait
+	.type	sem_timedwait,@function
+	.align	5
+sem_timedwait:
+	mov.l	@r4, r0
+2:
+	tst	r0, r0
+	bt	1f
+	mov	r0, r3
+	mov	r0, r6
+	add	#-1, r3
+	CMPXCHG (r6, @r4, r3, r2)
+	bf/s	2b
+	 mov	r2, r0
+	rts
+	 mov	#0, r0
+
+1:
+	/* Check whether the timeout value is valid.  */
+	mov.l	r12, @-r15
+	mov.l	r9, @-r15
+	mov.l	r8, @-r15
+	sts.l	pr, @-r15
+	add	#-8, r15
+	mov	r4, r8
+	mov	r5, r9
+
+	/* Check for invalid nanosecond field.  */
+	mov.l	@(4,r9), r0
+	mov.l	.L1g, r1
+	cmp/hs	r1, r0
+	bt/s	6f
+	 mov	#EINVAL, r0
+7:
+	/* Compute relative timeout.  */
+	mov	r15, r4
+	mov	#0, r5
+	mov	#SYS_gettimeofday, r3
+	trapa	#0x12
+	SYSCALL_INST_PAD
+
+	mov.l	@(4,r15), r0
+	mov.w	.L1k, r1
+	dmulu.l	r0, r1		/* Milli seconds to nano seconds.  */
+	mov.l	@r9, r2
+	mov.l	@(4,r9), r3
+	mov.l	@r15, r0
+	sts	macl, r1
+	sub	r0, r2
+	clrt
+	subc	r1, r3
+	bf	5f
+	mov.l	.L1g, r1
+	add	r1, r3
+	add	#-1, r2
+5:
+	cmp/pz	r2
+	bf	6f		/* Time is already up.  */
+
+	/* Store relative timeout.  */
+	mov.l	r2, @r15
+	mov.l	r3, @(4,r15)
+
+	/* Futex call.  */
+	mov	r8, r4
+	mov	#FUTEX_WAIT, r5
+	mov	#0, r6
+	mov	r15, r7
+	mov	#SYS_futex, r3
+	extu.b	r3, r3
+	trapa	#0x14
+	SYSCALL_INST_PAD
+
+	tst	r0, r0
+	bt	9f
+	cmp/eq	#-EWOULDBLOCK, r0
+	bf	3f
+9:
+	mov.l	@r8, r0
+8:
+	tst	r0, r0
+	bt	7b
+
+	mov	r0, r3
+	mov	r0, r4
+	add	#-1, r3
+	CMPXCHG (r4, @r8, r3, r2)
+	bf/s	8b
+	 mov	r2, r0
+
+	add	#8, r15
+	lds.l	@r15+, pr
+	mov.l	@r15+, r8
+	mov.l	@r15+, r9
+	mov.l	@r15+, r12
+	rts
+	 mov	#0, r0
+
+3:
+	neg	r0, r0
+6:
+	mov	r0, r8
+	mova	.Lgot2, r0
+	mov.l	.Lgot2, r12
+	add	r0, r12
+
+#if USE___THREAD
+	mov.l	.Lerrno2, r0
+	stc	gbr, r1
+	mov.l	@(r0, r12), r0
+	add	r1, r0
+	mov.l	r8, @r0
+#else
+	mov.l	.Lerrloc2, r1
+	bsrf	r1
+	 nop
+.Lerrloc2b:
+	mov.l	r8, @r0
+#endif
+	add	#8, r15
+	lds.l	@r15+, pr
+	mov.l	@r15+, r8
+	mov.l	@r15+, r9
+	mov.l	@r15+, r12
+	rts
+	 mov	#-1, r0
+
+.L1k:
+	.word	1000
+	.align	2
+.L1g:
+	.long	1000000000
+.Lgot2:
+	.long	_GLOBAL_OFFSET_TABLE_
+#if USE___THREAD
+.Lerrno2:
+	.long	errno@GOTTPOFF
+#else
+.Lerrloc2:
+	.long	__errno_location@PLT-(.Lerrloc2b+2-.)
+#endif
+	.size	sem_timedwait,.-sem_timedwait