2007-06-17 16:42:55 +00:00
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/* Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc.
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2003-02-10 09:24:12 +00:00
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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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2003-03-12 10:28:07 +00:00
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#include <pthread-errnos.h>
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2003-07-12 01:29:23 +00:00
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#include <tcb-offsets.h>
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2007-06-17 16:42:55 +00:00
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#include <structsem.h>
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2007-08-03 15:50:30 +00:00
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#include <lowlevellock.h>
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2003-02-10 09:24:12 +00:00
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#include "lowlevel-atomic.h"
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2007-06-17 16:42:55 +00:00
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#if VALUE != 0
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# error "code needs to be rewritten for VALUE != 0"
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#endif
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2003-02-10 09:24:12 +00:00
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.text
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.globl sem_timedwait
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.type sem_timedwait,@function
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.align 5
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sem_timedwait:
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2007-06-17 16:42:55 +00:00
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.LSTARTCODE:
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2003-02-10 09:24:12 +00:00
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mov.l @r4, r0
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2:
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tst r0, r0
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bt 1f
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mov r0, r3
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mov r0, r6
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add #-1, r3
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CMPXCHG (r6, @r4, r3, r2)
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bf/s 2b
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mov r2, r0
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rts
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mov #0, r0
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1:
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/* Check whether the timeout value is valid. */
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mov.l r8, @-r15
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2007-06-17 16:42:55 +00:00
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.Lpush_r8:
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2003-07-12 01:29:23 +00:00
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mov.l r9, @-r15
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2007-06-17 16:42:55 +00:00
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.Lpush_r9:
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2003-07-12 01:29:23 +00:00
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mov.l r10, @-r15
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2007-06-17 16:42:55 +00:00
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.Lpush_r10:
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2003-07-12 01:29:23 +00:00
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mov.l r12, @-r15
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2007-06-17 16:42:55 +00:00
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.Lpush_r12:
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2003-02-10 09:24:12 +00:00
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sts.l pr, @-r15
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2007-06-17 16:42:55 +00:00
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.Lpush_pr:
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2003-02-10 09:24:12 +00:00
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add #-8, r15
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2007-06-17 16:42:55 +00:00
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.Lalloc:
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2003-02-10 09:24:12 +00:00
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mov r4, r8
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mov r5, r9
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/* Check for invalid nanosecond field. */
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mov.l @(4,r9), r0
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mov.l .L1g, r1
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cmp/hs r1, r0
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bt/s 6f
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mov #EINVAL, r0
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2007-06-17 16:42:55 +00:00
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INC (@(NWAITERS,r8),r2)
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2003-07-12 01:29:23 +00:00
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2007-06-17 16:42:55 +00:00
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7:
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2003-02-10 09:24:12 +00:00
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/* Compute relative timeout. */
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mov r15, r4
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mov #0, r5
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2007-08-03 15:50:30 +00:00
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mov #__NR_gettimeofday, r3
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2003-02-10 09:24:12 +00:00
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trapa #0x12
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SYSCALL_INST_PAD
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mov.l @(4,r15), r0
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mov.w .L1k, r1
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dmulu.l r0, r1 /* Milli seconds to nano seconds. */
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mov.l @r9, r2
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mov.l @(4,r9), r3
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mov.l @r15, r0
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sts macl, r1
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sub r0, r2
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clrt
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subc r1, r3
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bf 5f
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mov.l .L1g, r1
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add r1, r3
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add #-1, r2
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5:
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cmp/pz r2
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2004-10-29 21:10:51 +00:00
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bf/s 6f /* Time is already up. */
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mov #ETIMEDOUT, r0
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2003-02-10 09:24:12 +00:00
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/* Store relative timeout. */
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mov.l r2, @r15
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mov.l r3, @(4,r15)
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2007-06-17 16:42:55 +00:00
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.LcleanupSTART:
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mov.l .Lenable0, r1
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bsrf r1
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nop
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.Lenable0b:
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mov r0, r10
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2003-02-10 09:24:12 +00:00
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mov r8, r4
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2007-06-17 16:42:55 +00:00
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#if FUTEX_WAIT == 0
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mov.l @(PRIVATE,r8), r5
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#else
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mov.l @(PRIVATE,r8), r5
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mov #FUTEX_WAIT, r0
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or r0, r5
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#endif
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2003-02-10 09:24:12 +00:00
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mov #0, r6
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mov r15, 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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2003-07-12 01:29:23 +00:00
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mov.l .Ldisable0, r1
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mov r10, r4
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bsrf r1
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mov r0, r10
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.Ldisable0b:
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mov r10, r0
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2007-06-17 16:42:55 +00:00
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.LcleanupEND:
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2003-07-12 01:29:23 +00:00
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2003-02-10 09:24:12 +00:00
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tst r0, r0
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bt 9f
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cmp/eq #-EWOULDBLOCK, r0
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bf 3f
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9:
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mov.l @r8, r0
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8:
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tst r0, r0
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bt 7b
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mov r0, r3
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mov r0, r4
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add #-1, r3
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CMPXCHG (r4, @r8, r3, r2)
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bf/s 8b
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mov r2, r0
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2007-06-17 16:42:55 +00:00
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DEC (@(NWAITERS,r8), r2)
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mov #0, r0
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10:
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2003-02-10 09:24:12 +00:00
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add #8, r15
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lds.l @r15+, pr
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mov.l @r15+, r12
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2003-07-12 01:29:23 +00:00
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mov.l @r15+, r10
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mov.l @r15+, r9
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mov.l @r15+, r8
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2003-02-10 09:24:12 +00:00
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rts
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2007-06-17 16:42:55 +00:00
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nop
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2003-02-10 09:24:12 +00:00
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3:
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neg r0, r0
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6:
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2007-06-17 16:42:55 +00:00
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mov r0, r10
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2003-02-10 09:24:12 +00:00
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mova .Lgot2, r0
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mov.l .Lgot2, r12
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add r0, r12
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#if USE___THREAD
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mov.l .Lerrno2, r0
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stc gbr, r1
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mov.l @(r0, r12), r0
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2007-08-03 15:50:30 +00:00
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bra .Lexit
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add r1, r0
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.align 2
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.Lerrno2:
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.long errno@GOTTPOFF
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.Lexit:
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2003-02-10 09:24:12 +00:00
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#else
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mov.l .Lerrloc2, r1
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bsrf r1
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nop
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.Lerrloc2b:
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#endif
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2007-08-03 15:50:30 +00:00
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mov.l r10, @r0
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2007-06-17 16:42:55 +00:00
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DEC (@(NWAITERS,r8), r2)
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bra 10b
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2003-02-10 09:24:12 +00:00
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mov #-1, r0
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.L1k:
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.word 1000
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.align 2
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.L1g:
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.long 1000000000
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.Lgot2:
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.long _GLOBAL_OFFSET_TABLE_
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2007-08-03 15:50:30 +00:00
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#if !USE___THREAD
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2003-02-10 09:24:12 +00:00
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.Lerrloc2:
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2004-06-29 15:54:37 +00:00
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.long __errno_location@PLT-(.Lerrloc2b-.)
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2003-02-10 09:24:12 +00:00
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#endif
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2003-07-12 01:29:23 +00:00
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.Lenable0:
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.long __pthread_enable_asynccancel-.Lenable0b
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.Ldisable0:
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.long __pthread_disable_asynccancel-.Ldisable0b
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2003-02-10 09:24:12 +00:00
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.size sem_timedwait,.-sem_timedwait
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2007-06-17 16:42:55 +00:00
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.type sem_wait_cleanup,@function
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sem_wait_cleanup:
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DEC (@(NWAITERS,r8), r2)
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.LcallUR:
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mov.l .Lresume, r1
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#ifdef PIC
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add r12, r1
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#endif
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jsr @r1
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nop
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sleep
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.align 2
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.Lresume:
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#ifdef PIC
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.long _Unwind_Resume@GOTOFF
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#else
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.long _Unwind_Resume
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#endif
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.LENDCODE:
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.size sem_wait_cleanup,.-sem_wait_cleanup
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.section .gcc_except_table,"a",@progbits
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.LexceptSTART:
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.byte 0xff ! @LPStart format (omit)
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.byte 0xff ! @TType format (omit)
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.byte 0x01 ! call-site format
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! DW_EH_PE_uleb128
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.uleb128 .Lcstend-.Lcstbegin
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.Lcstbegin:
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.uleb128 .LcleanupSTART-.LSTARTCODE
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.uleb128 .LcleanupEND-.LcleanupSTART
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.uleb128 sem_wait_cleanup-.LSTARTCODE
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.uleb128 0
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.uleb128 .LcallUR-.LSTARTCODE
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.uleb128 .LENDCODE-.LcallUR
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.uleb128 0
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.uleb128 0
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.Lcstend:
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.section .eh_frame,"a",@progbits
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.LSTARTFRAME:
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.ualong .LENDCIE-.LSTARTCIE ! Length of the CIE.
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.LSTARTCIE:
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.ualong 0 ! CIE ID.
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.byte 1 ! Version number.
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#ifdef SHARED
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.string "zPLR" ! NUL-terminated augmentation
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! string.
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#else
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.string "zPL" ! NUL-terminated augmentation
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! string.
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#endif
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.uleb128 1 ! Code alignment factor.
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.sleb128 -4 ! Data alignment factor.
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.byte 0x11 ! Return address register
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! column.
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#ifdef SHARED
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.uleb128 7 ! Augmentation value length.
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.byte 0x9b ! Personality: DW_EH_PE_pcrel
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! + DW_EH_PE_sdata4
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! + DW_EH_PE_indirect
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.ualong DW.ref.__gcc_personality_v0-.
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.byte 0x1b ! LSDA Encoding: DW_EH_PE_pcrel
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! + DW_EH_PE_sdata4.
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.byte 0x1b ! FDE Encoding: DW_EH_PE_pcrel
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! + DW_EH_PE_sdata4.
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#else
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.uleb128 6 ! Augmentation value length.
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.byte 0x0 ! Personality: absolute
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.ualong __gcc_personality_v0
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.byte 0x0 ! LSDA Encoding: absolute
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#endif
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.byte 0x0c ! DW_CFA_def_cfa
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.uleb128 0xf
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.uleb128 0
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.align 4
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.LENDCIE:
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.ualong .LENDFDE-.LSTARTFDE ! Length of the FDE.
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.LSTARTFDE:
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.ualong .LSTARTFDE-.LSTARTFRAME ! CIE pointer.
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#ifdef SHARED
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.ualong .LSTARTCODE-. ! PC-relative start address
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! of the code.
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#else
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.ualong .LSTARTCODE ! Start address of the code.
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#endif
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.ualong .LENDCODE-.LSTARTCODE ! Length of the code.
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.uleb128 4 ! Augmentation size
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#ifdef SHARED
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.ualong .LexceptSTART-.
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#else
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.ualong .LexceptSTART
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#endif
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|
|
|
|
.byte 4 ! DW_CFA_advance_loc4
|
|
|
|
|
.ualong .Lpush_r8-.LSTARTCODE
|
|
|
|
|
.byte 14 ! DW_CFA_def_cfa_offset
|
|
|
|
|
.uleb128 4
|
|
|
|
|
.byte 0x88 ! DW_CFA_offset r8
|
|
|
|
|
.uleb128 1
|
|
|
|
|
.byte 4 ! DW_CFA_advance_loc4
|
|
|
|
|
.ualong .Lpush_r9-.Lpush_r8
|
|
|
|
|
.byte 14 ! DW_CFA_def_cfa_offset
|
|
|
|
|
.uleb128 8
|
|
|
|
|
.byte 0x89 ! DW_CFA_offset r9
|
|
|
|
|
.uleb128 2
|
|
|
|
|
.byte 4 ! DW_CFA_advance_loc4
|
|
|
|
|
.ualong .Lpush_r10-.Lpush_r9
|
|
|
|
|
.byte 14 ! DW_CFA_def_cfa_offset
|
|
|
|
|
.uleb128 12
|
|
|
|
|
.byte 0x8a ! DW_CFA_offset r10
|
|
|
|
|
.uleb128 3
|
|
|
|
|
.byte 4 ! DW_CFA_advance_loc4
|
|
|
|
|
.ualong .Lpush_r12-.Lpush_r10
|
|
|
|
|
.byte 14 ! DW_CFA_def_cfa_offset
|
|
|
|
|
.uleb128 16
|
|
|
|
|
.byte 0x8c ! DW_CFA_offset r12
|
|
|
|
|
.uleb128 4
|
|
|
|
|
.byte 4 ! DW_CFA_advance_loc4
|
|
|
|
|
.ualong .Lpush_pr-.Lpush_r12
|
|
|
|
|
.byte 14 ! DW_CFA_def_cfa_offset
|
|
|
|
|
.uleb128 20
|
|
|
|
|
.byte 0x91 ! DW_CFA_offset pr
|
|
|
|
|
.uleb128 5
|
|
|
|
|
.byte 4 ! DW_CFA_advance_loc4
|
|
|
|
|
.ualong .Lalloc-.Lpush_pr
|
|
|
|
|
.byte 14 ! DW_CFA_def_cfa_offset
|
|
|
|
|
.uleb128 28
|
|
|
|
|
.align 4
|
|
|
|
|
.LENDFDE:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef SHARED
|
|
|
|
|
.hidden DW.ref.__gcc_personality_v0
|
|
|
|
|
.weak DW.ref.__gcc_personality_v0
|
|
|
|
|
.section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits
|
|
|
|
|
.align 4
|
|
|
|
|
.type DW.ref.__gcc_personality_v0, @object
|
|
|
|
|
.size DW.ref.__gcc_personality_v0, 4
|
|
|
|
|
DW.ref.__gcc_personality_v0:
|
|
|
|
|
.long __gcc_personality_v0
|
|
|
|
|
#endif
|
