summaryrefslogtreecommitdiff
path: root/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S
diff options
context:
space:
mode:
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S')
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S198
1 files changed, 0 insertions, 198 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S
deleted file mode 100644
index ad492aad9..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_unlock.S
+++ /dev/null
@@ -1,198 +0,0 @@
-/* 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, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <lowlevelrwlock.h>
-#include <bits/kernel-features.h>
-#include <tcb-offsets.h>
-#include "lowlevel-atomic.h"
-
-
- .text
-
- .globl __pthread_rwlock_unlock
- .type __pthread_rwlock_unlock,@function
- .protected __pthread_rwlock_unlock
- .align 5
-__pthread_rwlock_unlock:
- mov.l r12, @-r15
- mov.l r8, @-r15
- sts.l pr, @-r15
- 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
-
- lds.l @r15+, pr
- mov.l @r15+, r8
- mov.l @r15+, r12
- rts
- mov #0, r0
-6:
-#if MUTEX == 0
- DEC (@r8, r2)
-#else
- DEC (@(MUTEX,r8), r2)
-#endif
- tst r2, r2
- bf 3f
-4:
- lds.l @r15+, pr
- mov.l @r15+, r8
- mov.l @r15+, r12
- rts
- mov #0, r0
-
-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
- mov.l r6, @-r15
- 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
- bra 8b
- mov.l @r15+, r4
-
-#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
-
- .globl pthread_rwlock_unlock
-pthread_rwlock_unlock = __pthread_rwlock_unlock
-
- .globl __pthread_rwlock_unlock_internal
-__pthread_rwlock_unlock_internal = __pthread_rwlock_unlock