diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S b/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S deleted file mode 100644 index db99ee4696..0000000000 --- a/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S +++ /dev/null @@ -1,221 +0,0 @@ -/* Copyright (C) 2003-2014 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <lowlevellock.h> -#include <lowlevelrwlock.h> -#include <kernel-features.h> -#include "lowlevel-atomic.h" - - - .text - - .globl __pthread_rwlock_unlock - .type __pthread_rwlock_unlock,@function - .align 5 - cfi_startproc -__pthread_rwlock_unlock: - mov.l r12, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r12, 0) - mov.l r8, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r8, 0) - sts.l pr, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (pr, 0) - mov r4, r8 - - /* 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 1f -2: - mov.l @(WRITER,r8), r0 - tst r0, r0 - bf 5f - mov.l @(NR_READERS,r8), r0 - add #-1, r0 - mov.l r0, @(NR_READERS,r8) - tst r0, r0 - bf 6f -5: - mov #0, r0 - mov.l r0, @(WRITER,r8) - mov #1, r6 - mov r8, r4 - add #WRITERS_WAKEUP, r4 - mov.l @(WRITERS_QUEUED,r8), r0 - tst r0, r0 - bf 0f - - /* If also no readers waiting nothing to do. */ - mov.l @(READERS_QUEUED,r8), r0 - tst r0, r0 - bt 6f - - mov #-1, r6 - shlr r6 /* r6 = 0x7fffffff */ - mov r8, r4 - add #READERS_WAKEUP, r4 - -0: - mov.l @r4, r0 - add #1, r0 - mov.l r0, @r4 -#if MUTEX == 0 - DEC (@r8, r2) -#else - DEC (@(MUTEX,r8), r2) -#endif - tst r2, r2 - bf 7f - -8: -#ifdef __ASSUME_PRIVATE_FUTEX - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - mov #(FUTEX_PRIVATE_FLAG|FUTEX_WAKE), r0 - xor r0, r5 - extu.b r5, r5 -#else - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - extu.b r5, r5 - mov #FUTEX_WAKE, r0 - or r0, r5 - stc gbr, r1 - mov.w .Lpfoff, r2 - add r2, r1 - mov.l @r1, r0 - xor r0, r5 -#endif - mov #SYS_futex, r3 - mov #0, r7 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - - cfi_remember_state - lds.l @r15+, pr - cfi_adjust_cfa_offset (-4) - cfi_restore (pr) - mov.l @r15+, r8 - cfi_adjust_cfa_offset (-4) - cfi_restore (r8) - mov.l @r15+, r12 - cfi_adjust_cfa_offset (-4) - cfi_restore (r12) - rts - mov #0, r0 - cfi_restore_state -6: -#if MUTEX == 0 - DEC (@r8, r2) -#else - DEC (@(MUTEX,r8), r2) -#endif - tst r2, r2 - bf 3f -4: - cfi_remember_state - lds.l @r15+, pr - cfi_adjust_cfa_offset (-4) - cfi_restore (pr) - mov.l @r15+, r8 - cfi_adjust_cfa_offset (-4) - cfi_restore (r8) - mov.l @r15+, r12 - cfi_adjust_cfa_offset (-4) - cfi_restore (r12) - rts - mov #0, r0 - cfi_restore_state - -1: - mov r8, r5 -#if MUTEX != 0 - add #MUTEX, r5 -#endif - mov #PSHARED, r0 - mov.b @(r0,r8), r6 - extu.b r6, r6 - mov.l .Lwait8, r1 - bsrf r1 - mov r2, r4 -.Lwait8b: - bra 2b - nop -3: - mov r8, r4 -#if MUTEX != 0 - add #MUTEX, r4 -#endif - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - extu.b r5, r5 - mov.l .Lwake8, r1 - bsrf r1 - nop -.Lwake8b: - bra 4b - nop - -7: - mov.l r4, @-r15 - cfi_adjust_cfa_offset (4) - mov.l r6, @-r15 - cfi_adjust_cfa_offset (4) - mov r8, r4 -#if MUTEX != 0 - add #MUTEX, r4 -#endif - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - extu.b r5, r5 - mov.l .Lwake9, r1 - bsrf r1 - nop -.Lwake9b: - - mov.l @r15+, r6 - cfi_adjust_cfa_offset (-4) - bra 8b - mov.l @r15+, r4 - - cfi_endproc - -#ifndef __ASSUME_PRIVATE_FUTEX -.Lpfoff: - .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE -#endif - .align 2 -.Lwait8: - .long __lll_lock_wait-.Lwait8b -.Lwake8: - .long __lll_unlock_wake-.Lwake8b -.Lwake9: - .long __lll_unlock_wake-.Lwake9b - .size __pthread_rwlock_unlock,.-__pthread_rwlock_unlock - -strong_alias (__pthread_rwlock_unlock, pthread_rwlock_unlock) -hidden_def (__pthread_rwlock_unlock) |