diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S deleted file mode 100644 index 122e6199d..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pthread_rwlock_timedrdlock.S +++ /dev/null @@ -1,313 +0,0 @@ -/* Copyright (C) 2003, 2007, 2008 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 <pthread-errnos.h> -#include <tcb-offsets.h> -#include <bits/kernel-features.h> -#include "lowlevel-atomic.h" - - - .text - - .globl pthread_rwlock_timedrdlock - .type pthread_rwlock_timedrdlock,@function - .align 5 -pthread_rwlock_timedrdlock: - mov.l r12, @-r15 - mov.l r10, @-r15 - mov.l r9, @-r15 - mov.l r8, @-r15 - sts.l pr, @-r15 - add #-8, r15 - mov r4, r8 - mov r5, r9 - - /* 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 14f - mov.l @(WRITERS_QUEUED,r8), r0 - tst r0, r0 - bt 5f - mov #FLAGS, r0 - mov.b @(r0,r8), r0 - tst r0, r0 - bt 5f -3: - /* Check the value of the timeout parameter. */ - mov.l .L1g0, r1 - mov.l @(4,r9), r0 - cmp/hs r1, r0 - bt 19f - - mov.l @(READERS_QUEUED,r8), r0 - add #1, r0 - mov.l r0, @(READERS_QUEUED,r8) - tst r0, r0 - bt 4f - - mov.l @(READERS_WAKEUP,r8), r10 - -#if MUTEX == 0 - DEC (@r8, r2) -#else - DEC (@(MUTEX,r8), r2) -#endif - tst r2, r2 - bf 10f - -11: - /* Get current time. */ - mov r15, r4 - mov #0, r5 - mov #__NR_gettimeofday, r3 - trapa #0x12 - SYSCALL_INST_PAD - - mov.l @(4,r15), r0 - mov.w .L1k0, 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 15f - mov.l .L1g0, r1 - add r1, r3 - add #-1, r2 -15: - cmp/pz r2 - bf 16f /* Time is already up. */ - - /* Store relative timeout. */ - mov.l r2, @r15 - mov.l r3, @(4,r15) - - /* Futex call. */ - mov r15, r7 -#ifdef __ASSUME_PRIVATE_FUTEX - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - mov #(FUTEX_PRIVATE_FLAG|FUTEX_WAIT), r0 - xor r0, r5 - extu.b r5, r5 -#else - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - extu.b r5, r5 -# if FUTEX_WAIT != 0 - mov #FUTEX_WAIT, r0 - or r0, r5 -# endif - stc gbr, r1 - mov.w .Lpfoff, r2 - add r2, r1 - mov.l @r1, r0 - xor r0, r5 -#endif - mov r10, r6 - mov r8, r4 - add #READERS_WAKEUP, r4 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - mov r0, r3 - -17: - /* Reget the lock. */ - mov #0, r5 - mov #1, r4 -#if MUTEX == 0 - CMPXCHG (r5, @r8, r4, r2) -#else - CMPXCHG (r5, @(MUTEX,r8), r4, r2) -#endif - bf 12f - -13: - mov.l @(READERS_QUEUED,r8), r0 - add #-1, r0 - mov.l r0, @(READERS_QUEUED,r8) - mov #-ETIMEDOUT, r0 - cmp/eq r0, r3 - bf 2b - -18: - bra 9f - mov #ETIMEDOUT, r3 - -5: - mov #0, r3 - mov.l @(NR_READERS,r8), r0 - add #1, r0 - mov.l r0, @(NR_READERS,r8) - tst r0, r0 - bt 8f - -9: -#if MUTEX == 0 - DEC (@r8, r2) -#else - DEC (@(MUTEX,r8), r2) -#endif - tst r2, r2 - bf 6f -7: - add #8,r15 - lds.l @r15+, pr - mov.l @r15+, r8 - mov.l @r15+, r9 - mov.l @r15+, r10 - mov.l @r15+, r12 - rts - mov r3, r0 - -#ifndef __ASSUME_PRIVATE_FUTEX -.Lpfoff: - .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE -#endif - .align 2 -.L1k0: - .long 1000 -.L1g0: - .long 1000000000 - -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 .Lwait2, r1 - bsrf r1 - mov r2, r4 -.Lwait2b: - bra 2b - nop -14: - stc gbr, r1 - mov.w .Ltidoff, r2 - add r2, r1 - mov.l @r1, r1 - cmp/eq r1, r0 - bf 3b - /* Deadlock detected. */ - bra 9b - mov #EDEADLK, r3 - -.Ltidoff: - .word TID - TLS_PRE_TCB_SIZE - -6: - mov r3, r10 - mov r8, r4 -#if MUTEX != 0 - add #MUTEX, r4 -#endif - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - extu.b r5, r5 - mov.l .Lwake2, r1 - bsrf r1 - nop -.Lwake2b: - bra 7b - mov r10, r3 - -8: - /* Overflow. */ - mov.l @(NR_READERS,r8), r1 - add #-1, r1 - mov.l r1, @(NR_READERS,r8) - bra 9b - mov #EAGAIN, r3 - -4: - /* Overflow. */ - mov.l @(READERS_QUEUED,r8), r1 - add #-1, r1 - mov.l r1, @(READERS_QUEUED,r8) - bra 9b - mov #EAGAIN, r3 - -10: - mov r8, r4 -#if MUTEX != 0 - add #MUTEX, r4 -#endif - mov #PSHARED, r0 - mov.b @(r0,r8), r5 - extu.b r5, r5 - mov.l .Lwake3, r1 - bsrf r1 - nop -.Lwake3b: - bra 11b - nop - -12: - mov r3, r10 - mov r8, r5 -#if MUTEX != 0 - add #MUTEX, r5 -#endif - mov #PSHARED, r0 - mov.b @(r0,r8), r6 - extu.b r6, r6 - mov.l .Lwait3, r1 - bsrf r1 - mov r2, r4 -.Lwait3b: - bra 13b - mov r10, r3 - -16: - bra 17b - mov #-ETIMEDOUT, r3 - -19: - bra 9b - mov #EINVAL, r3 - - .align 2 -.Lwait2: - .long __lll_lock_wait-.Lwait2b -.Lwake2: - .long __lll_unlock_wake-.Lwake2b -.Lwait3: - .long __lll_lock_wait-.Lwait3b -.Lwake3: - .long __lll_unlock_wake-.Lwake3b - .size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock |