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2003-03-28 Kaz Kojima <kkojima@rr.iij4u.or.jp> * sysdeps/sh/bits/atomic.h (__arch_compare_and_exchange_val_8_acq): Return old value. Make asm output reg constraint earlyclobber. Renamed from... (__arch_compare_and_exchange_8_acq): ... this. (__arch_compare_and_exchange_val_16_acq): Return old value. Make asm output reg constraint earlyclobber. Renamed from... (__arch_compare_and_exchange_16_acq): ... this. (__arch_compare_and_exchange_val_32_acq): Return old value. Make asm output reg constraint earlyclobber. Renamed from... (__arch_compare_and_exchange_32_acq): ... this. (__arch_compare_and_exchange_val_64_acq): Renamed from... (__arch_compare_and_exchange_64_acq): ... this. (atomic_exchange_and_add): Use local variables and __arch_compare_and_exchange_val_64_acq. (atomic_add): Likewise. (atomic_add_negative, atomic_add_zero): Use local variables. * Makefile: Remove libmd5crypt goal.
108 lines
2.1 KiB
ArmAsm
108 lines
2.1 KiB
ArmAsm
/* Copyright (C) 2003 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 "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_wait
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.type __new_sem_wait,@function
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.align 5
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__new_sem_wait:
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mov.l r12, @-r15
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mov.l r8, @-r15
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sts.l pr, @-r15
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mov r4, r8
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3:
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mov.l @r8, 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, r4
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add #-1, r3
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CMPXCHG (r4, @r8, r3, r2)
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bf 2b
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lds.l @r15+, pr
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mov.l @r15+, r8
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mov.l @r15+, r12
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rts
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mov #0, r0
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1:
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mov r8, r4
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mov #FUTEX_WAIT, r5
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mov #0, 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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tst r0, r0
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bt 3b
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cmp/eq #-EWOULDBLOCK, r0
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bt 3b
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neg r0, r0
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mov r0, r8
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mova .Lgot0, r0
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mov.l .Lgot0, r12
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add r0, r12
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#if USE___THREAD
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mov.l .Lerrno0, 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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mov.l r8, @r0
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#else
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mov.l .Lerrloc0, r1
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bsrf r1
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nop
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.Lerrloc0b:
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mov.l r8, @r0
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#endif
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lds.l @r15+, pr
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mov.l @r15+, r8
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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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.Lgot0:
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.long _GLOBAL_OFFSET_TABLE_
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#if USE___THREAD
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.Lerrno0:
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.long errno@GOTTPOFF
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#else
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.Lerrloc0:
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.long __errno_location@PLT-(.Lerrloc0b+2-.)
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#endif
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.size __new_sem_wait,.-__new_sem_wait
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versioned_symbol(libpthread, __new_sem_wait, sem_wait, GLIBC_2_1)
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