/* Copyright (C) 2003, 2004, 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include #include #include #include #include #include "lowlevel-atomic.h" #if VALUE != 0 # error "code needs to be rewritten for VALUE != 0" #endif .text .globl sem_timedwait .type sem_timedwait,@function .align 5 sem_timedwait: .LSTARTCODE: mov.l @r4, r0 2: tst r0, r0 bt 1f mov r0, r3 mov r0, r6 add #-1, r3 CMPXCHG (r6, @r4, r3, r2) bf/s 2b mov r2, r0 rts mov #0, r0 1: /* Check whether the timeout value is valid. */ mov.l r8, @-r15 .Lpush_r8: mov.l r9, @-r15 .Lpush_r9: mov.l r10, @-r15 .Lpush_r10: mov.l r12, @-r15 .Lpush_r12: sts.l pr, @-r15 .Lpush_pr: add #-8, r15 .Lalloc: mov r4, r8 mov r5, r9 /* Check for invalid nanosecond field. */ mov.l @(4,r9), r0 mov.l .L1g, r1 cmp/hs r1, r0 bt/s 6f mov #EINVAL, r0 INC (@(NWAITERS,r8),r2) 7: /* Compute relative timeout. */ mov r15, r4 mov #0, r5 mov #__NR_gettimeofday, r3 trapa #0x12 SYSCALL_INST_PAD 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/s 6f /* Time is already up. */ mov #ETIMEDOUT, r0 /* Store relative timeout. */ mov.l r2, @r15 mov.l r3, @(4,r15) .LcleanupSTART: mov.l .Lenable0, r1 bsrf r1 nop .Lenable0b: mov r0, r10 mov r8, r4 #if FUTEX_WAIT == 0 mov.l @(PRIVATE,r8), r5 #else mov.l @(PRIVATE,r8), r5 mov #FUTEX_WAIT, r0 or r0, r5 #endif mov #0, r6 mov r15, r7 mov #SYS_futex, r3 extu.b r3, r3 trapa #0x14 SYSCALL_INST_PAD mov.l .Ldisable0, r1 mov r10, r4 bsrf r1 mov r0, r10 .Ldisable0b: mov r10, r0 .LcleanupEND: tst r0, r0 bt 9f cmp/eq #-EWOULDBLOCK, r0 bf 3f 9: mov.l @r8, r0 8: tst r0, r0 bt 7b mov r0, r3 mov r0, r4 add #-1, r3 CMPXCHG (r4, @r8, r3, r2) bf/s 8b mov r2, r0 DEC (@(NWAITERS,r8), r2) mov #0, r0 10: add #8, r15 lds.l @r15+, pr mov.l @r15+, r12 mov.l @r15+, r10 mov.l @r15+, r9 mov.l @r15+, r8 rts nop 3: neg r0, r0 6: mov r0, r10 mova .Lgot2, r0 mov.l .Lgot2, r12 add r0, r12 #if USE___THREAD mov.l .Lerrno2, r0 stc gbr, r1 mov.l @(r0, r12), r0 bra .Lexit add r1, r0 .align 2 .Lerrno2: .long errno@GOTTPOFF .Lexit: #else mov.l .Lerrloc2, r1 bsrf r1 nop .Lerrloc2b: #endif mov.l r10, @r0 DEC (@(NWAITERS,r8), r2) bra 10b mov #-1, r0 .L1k: .word 1000 .align 2 .L1g: .long 1000000000 .Lgot2: .long _GLOBAL_OFFSET_TABLE_ #if !USE___THREAD .Lerrloc2: .long __errno_location@PLT-(.Lerrloc2b-.) #endif .Lenable0: .long __pthread_enable_asynccancel-.Lenable0b .Ldisable0: .long __pthread_disable_asynccancel-.Ldisable0b .size sem_timedwait,.-sem_timedwait .type sem_wait_cleanup,@function sem_wait_cleanup: DEC (@(NWAITERS,r8), r2) .LcallUR: mov.l .Lresume, r1 #ifdef __PIC__ add r12, r1 #endif jsr @r1 nop sleep .align 2 .Lresume: #ifdef __PIC__ .long _Unwind_Resume@GOTOFF #else .long _Unwind_Resume #endif .LENDCODE: .size sem_wait_cleanup,.-sem_wait_cleanup .section .gcc_except_table,"a",@progbits .LexceptSTART: .byte 0xff ! @LPStart format (omit) .byte 0xff ! @TType format (omit) .byte 0x01 ! call-site format ! DW_EH_PE_uleb128 .uleb128 .Lcstend-.Lcstbegin .Lcstbegin: .uleb128 .LcleanupSTART-.LSTARTCODE .uleb128 .LcleanupEND-.LcleanupSTART .uleb128 sem_wait_cleanup-.LSTARTCODE .uleb128 0 .uleb128 .LcallUR-.LSTARTCODE .uleb128 .LENDCODE-.LcallUR .uleb128 0 .uleb128 0 .Lcstend: .section .eh_frame,"a",@progbits .LSTARTFRAME: .ualong .LENDCIE-.LSTARTCIE ! Length of the CIE. .LSTARTCIE: .ualong 0 ! CIE ID. .byte 1 ! Version number. #ifdef SHARED .string "zPLR" ! NUL-terminated augmentation ! string. #else .string "zPL" ! NUL-terminated augmentation ! string. #endif .uleb128 1 ! Code alignment factor. .sleb128 -4 ! Data alignment factor. .byte 0x11 ! Return address register ! column. #ifdef SHARED .uleb128 7 ! Augmentation value length. .byte 0x9b ! Personality: DW_EH_PE_pcrel ! + DW_EH_PE_sdata4 ! + DW_EH_PE_indirect .ualong DW.ref.__gcc_personality_v0-. .byte 0x1b ! LSDA Encoding: DW_EH_PE_pcrel ! + DW_EH_PE_sdata4. .byte 0x1b ! FDE Encoding: DW_EH_PE_pcrel ! + DW_EH_PE_sdata4. #else .uleb128 6 ! Augmentation value length. .byte 0x0 ! Personality: absolute .ualong __gcc_personality_v0 .byte 0x0 ! LSDA Encoding: absolute #endif .byte 0x0c ! DW_CFA_def_cfa .uleb128 0xf .uleb128 0 .align 4 .LENDCIE: .ualong .LENDFDE-.LSTARTFDE ! Length of the FDE. .LSTARTFDE: .ualong .LSTARTFDE-.LSTARTFRAME ! CIE pointer. #ifdef SHARED .ualong .LSTARTCODE-. ! PC-relative start address ! of the code. #else .ualong .LSTARTCODE ! Start address of the code. #endif .ualong .LENDCODE-.LSTARTCODE ! Length of the code. .uleb128 4 ! Augmentation size #ifdef SHARED .ualong .LexceptSTART-. #else .ualong .LexceptSTART #endif .byte 4 ! DW_CFA_advance_loc4 .ualong .Lpush_r8-.LSTARTCODE .byte 14 ! DW_CFA_def_cfa_offset .uleb128 4 .byte 0x88 ! DW_CFA_offset r8 .uleb128 1 .byte 4 ! DW_CFA_advance_loc4 .ualong .Lpush_r9-.Lpush_r8 .byte 14 ! DW_CFA_def_cfa_offset .uleb128 8 .byte 0x89 ! DW_CFA_offset r9 .uleb128 2 .byte 4 ! DW_CFA_advance_loc4 .ualong .Lpush_r10-.Lpush_r9 .byte 14 ! DW_CFA_def_cfa_offset .uleb128 12 .byte 0x8a ! DW_CFA_offset r10 .uleb128 3 .byte 4 ! DW_CFA_advance_loc4 .ualong .Lpush_r12-.Lpush_r10 .byte 14 ! DW_CFA_def_cfa_offset .uleb128 16 .byte 0x8c ! DW_CFA_offset r12 .uleb128 4 .byte 4 ! DW_CFA_advance_loc4 .ualong .Lpush_pr-.Lpush_r12 .byte 14 ! DW_CFA_def_cfa_offset .uleb128 20 .byte 0x91 ! DW_CFA_offset pr .uleb128 5 .byte 4 ! DW_CFA_advance_loc4 .ualong .Lalloc-.Lpush_pr .byte 14 ! DW_CFA_def_cfa_offset .uleb128 28 .align 4 .LENDFDE: #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