/* Copyright (C) 2003, 2007 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 <lowlevellock.h>#include <lowlevelrwlock.h>#include <pthread-errnos.h>#include <tcb-offsets.h>#include <kernel-features.h>#include "lowlevel-atomic.h"	.text	.globl	pthread_rwlock_timedrdlock	.type	pthread_rwlock_timedrdlock,@function	.align	5pthread_rwlock_timedrdlock:	mov.l	r12, @-r15	mov.l	r10, @-r15	mov.l	r9, @-r15	mov.l	r8, @-r15	sts.l	pr, @-r15	add	#-8, r15	mov	r4, r8	mov	r5, r9	/* Get the lock.  */	mov	#0, r3	mov	#1, r4#if MUTEX == 0	CMPXCHG (r3, @r8, r4, r2)#else	CMPXCHG (r3, @(MUTEX,r8), r4, r2)#endif	bf	1f2:	mov.l	@(WRITER,r8), r0	tst	r0, r0	bf	14f	mov.l	@(WRITERS_QUEUED,r8), r0	tst	r0, r0	bt	5f	mov	#FLAGS, r0	mov.b	@(r0,r8), r0	tst	r0, r0	bt	5f3:	/* Check the value of the timeout parameter.  */	mov.l	.L1g0, r1	mov.l	@(4,r9), r0	cmp/hs	r1, r0	bt	19f	mov.l	@(READERS_QUEUED,r8), r0	add	#1, r0	mov.l	r0, @(READERS_QUEUED,r8)	tst	r0, r0	bt	4f	mov.l	@(READERS_WAKEUP,r8), r10#if MUTEX == 0	DEC (@r8, r2)#else	DEC (@(MUTEX,r8), r2)#endif	tst	r2, r2	bf	10f11:	/* Get current time.  */	mov	r15, r4	mov	#0, r5	mov	#__NR_gettimeofday, r3	trapa	#0x12	SYSCALL_INST_PAD	mov.l	@(4,r15), r0	mov.w	.L1k0, 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	15f	mov.l	.L1g0, r1	add	r1, r3	add	#-1, r215:	cmp/pz	r2	bf	16f		/* Time is already up.  */	/* Store relative timeout.  */	mov.l	r2, @r15	mov.l	r3, @(4,r15)	/* Futex call.  */	mov	r15, r7#ifdef __ASSUME_PRIVATE_FUTEX	mov	#PSHARED, r0	mov.b	@(r0,r8), r5	mov	#(FUTEX_PRIVATE_FLAG|FUTEX_WAIT), r0	xor	r0, r5	extu.b	r5, r5#else	mov	#PSHARED, r0	mov.b	@(r0,r8), r5	extu.b	r5, r5# if FUTEX_WAIT != 0	mov	#FUTEX_WAIT, r0	or	r0, r5# endif	stc	gbr, r1	mov.w	.Lpfoff, r2	add	r2, r1	mov.l	@r1, r0	xor	r0, r5#endif	mov	r10, r6	mov	r8, r4	add	#READERS_WAKEUP, r4	mov	#SYS_futex, r3	extu.b	r3, r3	trapa	#0x14	SYSCALL_INST_PAD	mov	r0, r317:	/* Reget the lock.  */	mov	#0, r5	mov	#1, r4#if MUTEX == 0	CMPXCHG (r5, @r8, r4, r2)#else	CMPXCHG (r5, @(MUTEX,r8), r4, r2)#endif	bf	12f13:	mov.l	@(READERS_QUEUED,r8), r0	add	#-1, r0	mov.l	r0, @(READERS_QUEUED,r8)	mov	#-ETIMEDOUT, r0	cmp/eq	r0, r3	bf	2b18:	bra	9f	 mov	#ETIMEDOUT, r35:	mov	#0, r3	mov.l	@(NR_READERS,r8), r0	add	#1, r0	mov.l	r0, @(NR_READERS,r8)	tst	r0, r0	bt	8f9:#if MUTEX == 0	DEC (@r8, r2)#else	DEC (@(MUTEX,r8), r2)#endif	tst	r2, r2	bf	6f7:	add	#8,r15	lds.l	@r15+, pr	mov.l	@r15+, r8	mov.l	@r15+, r9	mov.l	@r15+, r10	mov.l	@r15+, r12	rts	 mov	r3, r0#ifndef __ASSUME_PRIVATE_FUTEX.Lpfoff:	.word	PRIVATE_FUTEX - TLS_PRE_TCB_SIZE#endif	.align	2.L1k0:	.long	1000.L1g0:	.long	10000000001:	mov	r8, r5#if MUTEX != 0	add	#MUTEX, r5#endif	mov	#PSHARED, r0	mov.b	@(r0,r8), r6	extu.b	r6, r6	mov.l	.Lwait2, r1	bsrf	r1	 mov	r2, r4.Lwait2b:	bra	2b	 nop14:	stc	gbr, r1	mov.w	.Ltidoff, r2	add	r2, r1	mov.l	@r1, r1	cmp/eq	r1, r0	bf	3b	/* Deadlock detected.  */	bra	9b	 mov	#EDEADLK, r3.Ltidoff:	.word	TID - TLS_PRE_TCB_SIZE6:	mov	r8, r4#if MUTEX != 0	add	#MUTEX, r4#endif	mov	#PSHARED, r0	mov.b	@(r0,r8), r5	extu.b	r5, r5	mov.l	.Lwake2, r1	bsrf	r1	 nop.Lwake2b:	bra	7b	 mov	#0, r38:	/* Overflow.  */	mov.l	@(NR_READERS,r8), r1	add	#-1, r1	mov.l	r1, @(NR_READERS,r8)	bra	9b	 mov	#EAGAIN, r34:	/* Overflow.  */	mov.l	@(READERS_QUEUED,r8), r1	add	#-1, r1	mov.l	r1, @(READERS_QUEUED,r8)	bra	9b	 mov	#EAGAIN, r310:	mov	r8, r4#if MUTEX != 0	add	#MUTEX, r4#endif	mov	#PSHARED, r0	mov.b	@(r0,r8), r5	extu.b	r5, r5	mov.l	.Lwake3, r1	bsrf	r1	 nop.Lwake3b:	bra	11b	 nop12:	mov	r8, r5#if MUTEX != 0	add	#MUTEX, r5#endif	mov	#PSHARED, r0	mov.b	@(r0,r8), r6	extu.b	r6, r6	mov.l	.Lwait3, r1	bsrf	r1	 mov	r2, r4.Lwait3b:	bra	13b	 nop16:	bra	17b	 mov	#-ETIMEDOUT, r319:	bra	9b	 mov	#EINVAL, r3	.align	2.Lwait2:	.long	__lll_lock_wait-.Lwait2b.Lwake2:	.long	__lll_unlock_wake-.Lwake2b.Lwait3:	.long	__lll_lock_wait-.Lwait3b.Lwake3:	.long	__lll_unlock_wake-.Lwake3b	.size	pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock