mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 04:01:10 +00:00
dd731d53dc
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.
207 lines
3.6 KiB
ArmAsm
207 lines
3.6 KiB
ArmAsm
/* 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 <pthread-errnos.h>
|
|
#include "lowlevel-atomic.h"
|
|
|
|
.text
|
|
|
|
#define SYS_gettimeofday __NR_gettimeofday
|
|
#define SYS_futex 240
|
|
#define FUTEX_WAIT 0
|
|
#define FUTEX_WAKE 1
|
|
|
|
|
|
.globl __lll_lock_wait
|
|
.type __lll_lock_wait,@function
|
|
.hidden __lll_lock_wait
|
|
.align 5
|
|
__lll_lock_wait:
|
|
mov r4, r6
|
|
mov r5, r4
|
|
mov #0, r7 /* No timeout. */
|
|
mov #FUTEX_WAIT, r5
|
|
2:
|
|
add #-1, r6 /* account for the preceeded xadd. */
|
|
mov #SYS_futex, r3
|
|
extu.b r3, r3
|
|
trapa #0x14
|
|
SYSCALL_INST_PAD
|
|
|
|
mov #-1, r3
|
|
XADD (r3, @r4, r2)
|
|
tst r3, r3
|
|
bf/s 2b
|
|
mov r2, r6
|
|
|
|
mov #-1, r1
|
|
mov.l r1, @r4
|
|
rts
|
|
mov r2, r0
|
|
.size __lll_lock_wait,.-__lll_lock_wait
|
|
|
|
|
|
#ifdef NOT_IN_libc
|
|
.globl lll_unlock_wake_cb
|
|
.type lll_unlock_wake_cb,@function
|
|
.hidden lll_unlock_wake_cb
|
|
.align 5
|
|
lll_unlock_wake_cb:
|
|
|
|
.align 2
|
|
mova 1f, r0
|
|
mov r15, r1
|
|
mov #-6, r15
|
|
0:
|
|
mov.l @r4, r2
|
|
add #1, r2
|
|
mov.l r2, @r4
|
|
1:
|
|
mov r1, r15
|
|
cmp/pl r2
|
|
bf 2f
|
|
rts
|
|
nop
|
|
.size lll_unlock_wake_cb,.-lll_unlock_wake_cb
|
|
#endif
|
|
|
|
|
|
.globl __lll_unlock_wake
|
|
.type __lll_unlock_wake,@function
|
|
.hidden __lll_unlock_wake
|
|
__lll_unlock_wake:
|
|
2:
|
|
mov #FUTEX_WAKE, r5
|
|
mov #1, r6 /* Wake one thread. */
|
|
mov #0, r7
|
|
mov.l r6, @r4 /* Stores 1. */
|
|
mov #SYS_futex, r3
|
|
extu.b r3, r3
|
|
trapa #0x14
|
|
SYSCALL_INST_PAD
|
|
rts
|
|
nop
|
|
.size __lll_unlock_wake,.-__lll_unlock_wake
|
|
|
|
|
|
#ifdef NOT_IN_libc
|
|
.globl __lll_wait_tid
|
|
.type __lll_wait_tid,@function
|
|
.hidden __lll_wait_tid
|
|
__lll_wait_tid:
|
|
mov.l @r4, r6
|
|
1:
|
|
mov #FUTEX_WAIT, r5
|
|
mov #0, r7
|
|
mov #SYS_futex, r3
|
|
extu.b r3, r3
|
|
trapa #0x14
|
|
SYSCALL_INST_PAD
|
|
|
|
mov r0, r1
|
|
|
|
mov.l @r4, r0
|
|
tst r0, r0
|
|
bf/s 1b
|
|
mov r0, r6
|
|
rts
|
|
nop
|
|
.size __lll_wait_tid,.-__lll_wait_tid
|
|
|
|
|
|
.globl __lll_timedwait_tid
|
|
.type __lll_timedwait_tid,@function
|
|
.hidden __lll_timedwait_tid
|
|
__lll_timedwait_tid:
|
|
mov.l r9, @-r15
|
|
mov.l r8, @-r15
|
|
mov r4, r8
|
|
mov r5, r9
|
|
add #-8, r15
|
|
|
|
2:
|
|
/* Get current time. */
|
|
mov r15, r4
|
|
mov #0, r5
|
|
mov #SYS_gettimeofday, r3
|
|
trapa #0x12
|
|
SYSCALL_INST_PAD
|
|
|
|
/* Compute relative timeout. */
|
|
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. */
|
|
|
|
mov.l r2, @r15 /* Store relative timeout. */
|
|
mov.l r3, @(4,r15)
|
|
|
|
mov.l @r8, r6
|
|
tst r6, r6
|
|
bt 4f
|
|
|
|
mov r8, r4
|
|
mov #FUTEX_WAIT, r5
|
|
mov r15, r7
|
|
mov #SYS_futex, r3
|
|
extu.b r3, r3
|
|
trapa #0x14
|
|
SYSCALL_INST_PAD
|
|
|
|
mov.l @r8, r0
|
|
tst r0, r0
|
|
bf 1f
|
|
4:
|
|
mov #0, r0
|
|
3:
|
|
add #8, r15
|
|
mov.l @r15+, r8
|
|
rts
|
|
mov.l @r15+, r9
|
|
|
|
1:
|
|
mov #-ETIMEDOUT, r1
|
|
cmp/eq r0, r1
|
|
bf 2b
|
|
6:
|
|
bra 3b
|
|
mov #ETIMEDOUT, r0
|
|
|
|
.L1k:
|
|
.word 1000
|
|
.align 2
|
|
.L1g:
|
|
.long 1000000000
|
|
|
|
.size __lll_timedwait_tid,.-__lll_timedwait_tid
|
|
#endif
|