diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S | 769 |
1 files changed, 0 insertions, 769 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S deleted file mode 100644 index 94b99e724b..0000000000 --- a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S +++ /dev/null @@ -1,769 +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 <shlib-compat.h> -#include <lowlevellock.h> -#include <lowlevelcond.h> -#include <pthread-errnos.h> -#include <kernel-features.h> -#include <tcb-offsets.h> -#include "lowlevel-atomic.h" - - .text - -/* int pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec *abstime) */ - .globl __pthread_cond_timedwait - .type __pthread_cond_timedwait, @function - .align 5 - cfi_startproc -__pthread_cond_timedwait: -.LSTARTCODE: -#ifdef SHARED - cfi_personality(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect, - DW.ref.__gcc_personality_v0) - cfi_lsda(DW_EH_PE_pcrel | DW_EH_PE_sdata4, .LexceptSTART) -#else - cfi_personality(DW_EH_PE_absptr, __gcc_personality_v0) - cfi_lsda(DW_EH_PE_absptr, .LexceptSTART) -#endif - mov.l r8, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r8, 0) - mov.l r9, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r9, 0) - mov.l r10, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r10, 0) - mov.l r11, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r11, 0) - mov.l r12, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r12, 0) - mov.l r13, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (r13, 0) - sts.l pr, @-r15 - cfi_adjust_cfa_offset (4) - cfi_rel_offset (pr, 0) - add #-64, r15 - cfi_adjust_cfa_offset (64) - - mov r4, r8 - mov r5, r9 - mov r6, r13 -#ifdef PIC - mova .Lgot0, r0 - mov.l .Lgot0, r12 - add r0, r12 -#endif - - mov.l @(4,r13), r0 - mov.l .L1g, r1 - cmp/hs r1, r0 - bf 0f - bra 18f - mov #EINVAL, r0 -0: - /* Get internal lock. */ - mov #0, r3 - mov #1, r4 -#if cond_lock != 0 - CMPXCHG (r3, @(cond_lock,r8), r4, r2) -#else - CMPXCHG (r3, @r8, r4, r2) -#endif - bt 2f - bra 1f - nop -#ifdef PIC - .align 2 -.Lgot0: - .long _GLOBAL_OFFSET_TABLE_ -#endif - -2: - /* Store the reference to the mutex. If there is already a - different value in there this is a bad user bug. */ - mov.l @(dep_mutex,r8),r0 - cmp/eq #-1, r0 - bt 17f - mov.l r9, @(dep_mutex,r8) - -17: - /* Unlock the mutex. */ - mov.l .Lmunlock1, r1 - mov #0, r5 - bsrf r1 - mov r9, r4 -.Lmunlock1b: - - tst r0, r0 - bt 0f - bra 16f - nop -0: - mov #1, r2 - mov #0, r3 - - clrt - mov.l @(total_seq,r8),r0 - mov.l @(total_seq+4,r8),r1 - addc r2, r0 - addc r3, r1 - mov.l r0,@(total_seq,r8) - mov.l r1,@(total_seq+4,r8) - mov.l @(cond_futex,r8), r0 - add r2, r0 - mov.l r0, @(cond_futex,r8) - mov #(1 << nwaiters_shift), r2 - mov.l @(cond_nwaiters,r8), r0 - add r2, r0 - mov.l r0, @(cond_nwaiters,r8) - - /* Get and store current wakeup_seq value. */ - mov.l @(wakeup_seq,r8), r10 - mov.l @(wakeup_seq+4,r8), r11 - mov.l @(broadcast_seq,r8), r0 - mov.l r0, @(4,r15) - -8: - /* Get current time. */ -#ifdef __NR_clock_gettime - /* Get the clock number. */ - mov.l @(cond_nwaiters,r8), r4 - mov #((1 << nwaiters_shift) - 1), r0 - and r0, r4 - /* Only clocks 0 and 1 are allowed. Both are handled in the - kernel. */ - mov r15, r5 - add #16, r5 - mov.w .L__NR_clock_gettime, r3 - trapa #0x12 - SYSCALL_INST_PAD - - /* Compute relative timeout. */ - mov.l @r13, r2 - mov.l @(4,r13), r3 - mov.l @(16,r15), r0 - bra 0f - mov.l @(20,r15), r1 -.L__NR_clock_gettime: - .word __NR_clock_gettime - -0: -#else - mov r15, r4 - add #16, r4 - mov #0, r5 - mov #__NR_gettimeofday, r3 - trapa #0x12 - SYSCALL_INST_PAD - - /* Compute relative timeout. */ - mov.l @(20,r15), r0 - mov.w .L1k, r1 - dmulu.l r0, r1 /* Micro seconds to nano seconds. */ - mov.l @r13, r2 - mov.l @(4,r13), r3 - mov.l @(16,r15), r0 - sts macl, r1 -#endif - sub r0, r2 - clrt - subc r1, r3 - bf 12f - mov.l .L1g, r1 - add r1, r3 - add #-1, r2 -12: - mov #-ETIMEDOUT, r1 - mov.l r1, @(12,r15) - cmp/pz r2 - bf 6f /* Time is already up. */ - - /* Store relative timeout. */ - mov.l r2, @(16,r15) - mov.l r3, @(20,r15) - mov.l @(cond_futex,r8), r1 - mov.l r1, @(8,r15) - - /* Unlock. */ -#if cond_lock != 0 - DEC (@(cond_lock,r8), r2) -#else - DEC (@r8, r2) -#endif - tst r2, r2 - bt 4f - bra 3f - nop -4: -.LcleanupSTART: - mov.l .Lenable1, r1 - bsrf r1 - nop -.Lenable1b: - mov.l r0, @r15 - - mov r15, r7 - add #16, r7 - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bt/s 99f - mov #FUTEX_WAIT, r5 -#ifdef __ASSUME_PRIVATE_FUTEX - mov #(FUTEX_WAIT|FUTEX_PRIVATE_FLAG), r5 - extu.b r5, r5 -#else - stc gbr, r1 - mov.w .Lpfoff, r2 - add r2, r1 - mov.l @r1, r5 - mov #FUTEX_WAIT, r0 - or r0, r5 -#endif -99: - mov.l @(8,r15), r6 - mov r8, r4 - add #cond_futex, r4 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - mov.l r0, @(12,r15) - - mov.l .Ldisable1, r1 - bsrf r1 - mov.l @r15, r4 -.Ldisable1b: -.LcleanupEND: - - /* Lock. */ - mov #0, r3 - mov #1, r4 -#if cond_lock != 0 - CMPXCHG (r3, @(cond_lock,r8), r4, r2) -#else - CMPXCHG (r3, @r8, r4, r2) -#endif - bf 5f -6: - mov.l @(broadcast_seq,r8), r0 - mov.l @(4,r15), r1 - cmp/eq r0, r1 - bf 23f - - mov.l @(woken_seq,r8), r0 - mov.l @(woken_seq+4,r8), r1 - - mov.l @(wakeup_seq,r8), r2 - mov.l @(wakeup_seq+4,r8), r3 - - cmp/eq r3, r11 - bf 7f - cmp/eq r2, r10 - bt 15f -7: - cmp/eq r1, r3 - bf 9f - cmp/eq r0, r2 - bf 9f -15: - mov.l @(12,r15),r0 - cmp/eq #-ETIMEDOUT, r0 - bf 8b - - mov #1, r2 - mov #0, r3 - - clrt - mov.l @(wakeup_seq,r8),r0 - mov.l @(wakeup_seq+4,r8),r1 - addc r2, r0 - addc r3, r1 - mov.l r0,@(wakeup_seq,r8) - mov.l r1,@(wakeup_seq+4,r8) - mov.l @(cond_futex,r8),r0 - add r2, r0 - mov.l r0,@(cond_futex,r8) - mov #ETIMEDOUT, r0 - bra 14f - mov.l r0, @(24,r15) - -23: - mov #0, r0 - bra 24f - mov.l r0, @(24,r15) - -9: - mov #0, r0 - mov.l r0, @(24,r15) -14: - mov #1, r2 - mov #0, r3 - - clrt - mov.l @(woken_seq,r8),r0 - mov.l @(woken_seq+4,r8),r1 - addc r2, r0 - addc r3, r1 - mov.l r0,@(woken_seq,r8) - mov.l r1,@(woken_seq+4,r8) - -24: - mov #(1 << nwaiters_shift), r2 - mov.l @(cond_nwaiters,r8),r0 - sub r2, r0 - mov.l r0,@(cond_nwaiters,r8) - - /* Wake up a thread which wants to destroy the condvar object. */ - mov.l @(total_seq,r8),r0 - mov.l @(total_seq+4,r8),r1 - and r1, r0 - not r0, r0 - cmp/eq #0, r0 - bf/s 25f - mov #((1 << nwaiters_shift) - 1), r1 - not r1, r1 - mov.l @(cond_nwaiters,r8),r0 - tst r1, r0 - bf 25f - - mov r8, r4 - add #cond_nwaiters, r4 - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bt/s 99f - mov #FUTEX_WAKE, r5 -#ifdef __ASSUME_PRIVATE_FUTEX - mov #(FUTEX_WAKE|FUTEX_PRIVATE_FLAG), r5 - extu.b r5, r5 -#else - stc gbr, r1 - mov.w .Lpfoff, r2 - add r2, r1 - mov.l @r1, r5 - mov #FUTEX_WAKE, r0 - or r0, r5 -#endif -99: - mov #1, r6 - mov #0, r7 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - -25: -#if cond_lock != 0 - DEC (@(cond_lock,r8), r2) -#else - DEC (@r8, r2) -#endif - tst r2, r2 - bf 10f - -11: - mov r9, r4 - mov.l .Lmlocki1, r1 - bsrf r1 - nop -.Lmlocki1b: - - /* We return the result of the mutex_lock operation if it failed. */ - tst r0, r0 - bf 18f - mov.l @(24,r15), r0 - -18: - cfi_remember_state - add #64, r15 - cfi_adjust_cfa_offset (-64) - lds.l @r15+, pr - cfi_adjust_cfa_offset (-4) - cfi_restore (pr) - mov.l @r15+, r13 - cfi_adjust_cfa_offset (-4) - cfi_restore (r13) - mov.l @r15+, r12 - cfi_adjust_cfa_offset (-4) - cfi_restore (r12) - mov.l @r15+, r11 - cfi_adjust_cfa_offset (-4) - cfi_restore (r11) - mov.l @r15+, r10 - cfi_adjust_cfa_offset (-4) - cfi_restore (r10) - mov.l @r15+, r9 - cfi_adjust_cfa_offset (-4) - cfi_restore (r9) - rts - mov.l @r15+, r8 - /* Omit CFI for restore in delay slot. */ - cfi_restore_state - -#ifndef __ASSUME_PRIVATE_FUTEX -.Lpfoff: - .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE -#endif -.L1k: - .word 1000 - .align 2 -.Lmunlock1: - .long __pthread_mutex_unlock_usercnt-.Lmunlock1b -.Lenable1: - .long __pthread_enable_asynccancel-.Lenable1b -.Ldisable1: - .long __pthread_disable_asynccancel-.Ldisable1b -.Lmlocki1: - .long __pthread_mutex_cond_lock-.Lmlocki1b -.L1g: - .long 1000000000 - -1: - /* Initial locking failed. */ - mov r8, r5 -#if cond_lock != 0 - add #cond_lock, r5 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r6 - mov #LLL_SHARED, r6 -99: - extu.b r6, r6 - mov.l .Lwait2, r1 - bsrf r1 - mov r2, r4 -.Lwait2b: - bra 2b - nop - -3: - /* Unlock in loop requires wakeup. */ - mov r8, r4 -#if cond_lock != 0 - add #cond_lock, r4 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r5 - mov #LLL_SHARED, r5 -99: - mov.l .Lmwait2, r1 - bsrf r1 - extu.b r5, r5 -.Lmwait2b: - bra 4b - nop - -5: - /* Locking in loop failed. */ - mov r8, r5 -#if cond_lock != 0 - add #cond_lock, r5 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r6 - mov #LLL_SHARED, r6 -99: - extu.b r6, r6 - mov.l .Lwait3, r1 - bsrf r1 - mov r2, r4 -.Lwait3b: - bra 6b - nop - -10: - /* Unlock after loop requires wakeup. */ - mov r8, r4 -#if cond_lock != 0 - add #cond_lock, r4 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r5 - mov #LLL_SHARED, r5 -99: - mov.l .Lmwait3, r1 - bsrf r1 - extu.b r5, r5 -.Lmwait3b: - bra 11b - nop - -16: - /* The initial unlocking of the mutex failed. */ - mov.l r0, @(24,r15) -#if cond_lock != 0 - DEC (@(cond_lock,r8), r2) -#else - DEC (@r8, r2) -#endif - tst r2, r2 - bf 17f - - mov r8, r4 -#if cond_lock != 0 - add #cond_lock, r4 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r5 - mov #LLL_SHARED, r5 -99: - mov.l .Lmwait4, r1 - bsrf r1 - extu.b r5, r5 -.Lmwait4b: -17: - bra 18b - mov.l @(24,r15), r0 - - .align 2 -.Lwait2: - .long __lll_lock_wait-.Lwait2b -.Lmwait2: - .long __lll_unlock_wake-.Lmwait2b -.Lwait3: - .long __lll_lock_wait-.Lwait3b -.Lmwait3: - .long __lll_unlock_wake-.Lmwait3b -.Lmwait4: - .long __lll_unlock_wake-.Lmwait4b - .size __pthread_cond_timedwait, .-__pthread_cond_timedwait -versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, - GLIBC_2_3_2) - - - .type __condvar_tw_cleanup, @function -__condvar_tw_cleanup: - mov r4, r11 - - /* Get internal lock. */ - mov #0, r3 - mov #1, r4 -#if cond_lock != 0 - CMPXCHG (r3, @(cond_lock,r8), r4, r2) -#else - CMPXCHG (r3, @r8, r4, r2) -#endif - bt 1f - nop - - mov r8, r5 -#if cond_lock != 0 - add #cond_lock, r5 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r6 - mov #LLL_SHARED, r6 -99: - extu.b r6, r6 - mov.l .Lwait5, r1 - bsrf r1 - mov r2, r4 -.Lwait5b: - -1: - mov.l @(broadcast_seq,r8), r0 - mov.l @(4,r15), r1 - cmp/eq r0, r1 - bf 3f - - mov #1, r2 - mov #0, r3 - - /* We increment the wakeup_seq counter only if it is lower than - total_seq. If this is not the case the thread was woken and - then canceled. In this case we ignore the signal. */ - mov.l @(total_seq+4,r8), r0 - mov.l @(wakeup_seq+4,r8), r1 - cmp/hi r1, r0 - bt/s 6f - cmp/hi r0, r1 - bt 7f - mov.l @(total_seq,r8), r0 - mov.l @(wakeup_seq,r8), r1 - cmp/hs r0, r1 - bt 7f - -6: - clrt - mov.l @(wakeup_seq,r8),r0 - mov.l @(wakeup_seq+4,r8),r1 - addc r2, r0 - addc r3, r1 - mov.l r0,@(wakeup_seq,r8) - mov.l r1,@(wakeup_seq+4,r8) - mov.l @(cond_futex,r8),r0 - add r2, r0 - mov.l r0,@(cond_futex,r8) - -7: - clrt - mov.l @(woken_seq,r8),r0 - mov.l @(woken_seq+4,r8),r1 - addc r2, r0 - addc r3, r1 - mov.l r0,@(woken_seq,r8) - mov.l r1,@(woken_seq+4,r8) - -3: - mov #(1 << nwaiters_shift), r2 - mov.l @(cond_nwaiters,r8),r0 - sub r2, r0 - mov.l r0,@(cond_nwaiters,r8) - - /* Wake up a thread which wants to destroy the condvar object. */ - mov #0, r10 - mov.l @(total_seq,r8),r0 - mov.l @(total_seq+4,r8),r1 - and r1, r0 - not r0, r0 - cmp/eq #0, r0 - bf/s 4f - mov #((1 << nwaiters_shift) - 1), r1 - not r1, r1 - mov.l @(cond_nwaiters,r8),r0 - tst r1, r0 - bf 4f - - mov r8, r4 - add #cond_nwaiters, r4 - mov #FUTEX_WAKE, r5 - mov #1, r6 - mov #0, r7 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - mov #1, r10 - -4: -#if cond_lock != 0 - DEC (@(cond_lock,r8), r2) -#else - DEC (@r8, r2) -#endif - tst r2, r2 - bt 2f - - mov r8, r4 -#if cond_lock != 0 - add #cond_lock, r4 -#endif - mov.l @(dep_mutex,r8), r0 - cmp/eq #-1, r0 - bf/s 99f - mov #LLL_PRIVATE, r5 - mov #LLL_SHARED, r5 -99: - mov.l .Lmwait5, r1 - bsrf r1 - extu.b r5, r5 -.Lmwait5b: - -2: - /* Wake up all waiters to make sure no signal gets lost. */ - tst r10, r10 - bf/s 5f - mov r8, r4 - add #cond_futex, r4 - mov #FUTEX_WAKE, r5 - mov #-1, r6 - shlr r6 /* r6 = 0x7fffffff */ - mov #0, r7 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - -5: - mov.l .Lmlocki5, r1 - bsrf r1 - mov r9, r4 -.Lmlocki5b: - -.LcallUR: - mov.l .Lresume, r1 -#ifdef PIC - add r12, r1 -#endif - jsr @r1 - mov r11, r4 - sleep - - .align 2 -.Lwait5: - .long __lll_lock_wait-.Lwait5b -.Lmwait5: - .long __lll_unlock_wake-.Lmwait5b -.Lmlocki5: - .long __pthread_mutex_cond_lock-.Lmlocki5b -.Lresume: -#ifdef PIC - .long _Unwind_Resume@GOTOFF -#else - .long _Unwind_Resume -#endif -.LENDCODE: - cfi_endproc - .size __condvar_tw_cleanup, .-__condvar_tw_cleanup - - - .section .gcc_except_table,"a",@progbits -.LexceptSTART: - .byte DW_EH_PE_omit ! @LPStart format (omit) - .byte DW_EH_PE_omit ! @TType format (omit) - .byte DW_EH_PE_sdata4 ! call-site format - .uleb128 .Lcstend-.Lcstbegin -.Lcstbegin: - .ualong .LcleanupSTART-.LSTARTCODE - .ualong .LcleanupEND-.LcleanupSTART - .ualong __condvar_tw_cleanup-.LSTARTCODE - .uleb128 0 - .ualong .LcallUR-.LSTARTCODE - .ualong .LENDCODE-.LcallUR - .ualong 0 - .uleb128 0 -.Lcstend: - - -#ifdef SHARED - .hidden DW.ref.__gcc_personality_v0 - .weak DW.ref.__gcc_personality_v0 - .section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits - .align 4 - .type DW.ref.__gcc_personality_v0, @object - .size DW.ref.__gcc_personality_v0, 4 -DW.ref.__gcc_personality_v0: - .long __gcc_personality_v0 -#endif |