| /* 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 <sysdep.h> |
| #include <shlib-compat.h> |
| #include <pthread-errnos.h> |
| #include <tcb-offsets.h> |
| #include <structsem.h> |
| #include <lowlevellock.h> |
| #include "lowlevel-atomic.h" |
| |
| |
| #if VALUE != 0 |
| # error "code needs to be rewritten for VALUE != 0" |
| #endif |
| |
| .text |
| |
| .globl __new_sem_wait |
| .type __new_sem_wait,@function |
| .align 5 |
| __new_sem_wait: |
| .LSTARTCODE: |
| mov.l r8, @-r15 |
| .Lpush_r8: |
| mov.l r10, @-r15 |
| .Lpush_r10: |
| mov.l r12, @-r15 |
| .Lpush_r12: |
| sts.l pr, @-r15 |
| .Lpush_pr: |
| mov r4, r8 |
| |
| mov.l @r8, r0 |
| 2: |
| tst r0, r0 |
| bt 1f |
| mov r0, r3 |
| mov r0, r4 |
| add #-1, r3 |
| CMPXCHG (r4, @r8, r3, r2) |
| bf/s 2b |
| mov r2, r0 |
| 7: |
| mov #0, r0 |
| 9: |
| lds.l @r15+, pr |
| mov.l @r15+, r12 |
| mov.l @r15+, r10 |
| rts |
| mov.l @r15+, r8 |
| |
| .Lafter_ret: |
| 1: |
| INC (@(NWAITERS,r8),r2) |
| |
| .LcleanupSTART: |
| 6: |
| 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 #0, 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 3f |
| cmp/eq #-EWOULDBLOCK, r0 |
| bf 4f |
| |
| 3: |
| mov.l @r8, r0 |
| 5: |
| tst r0, r0 |
| bt 6b |
| |
| mov r0, r3 |
| mov r0, r4 |
| add #-1, r3 |
| CMPXCHG (r4, @r8, r3, r2) |
| bf/s 5b |
| mov r2, r0 |
| |
| DEC (@(NWAITERS,r8), r2) |
| bra 7b |
| nop |
| |
| 4: |
| neg r0, r0 |
| mov r0, r4 |
| DEC (@(NWAITERS,r8), r2) |
| mov r4, r8 |
| mova .Lgot0, r0 |
| mov.l .Lgot0, r12 |
| add r0, r12 |
| |
| #if USE___THREAD |
| mov.l .Lerrno0, r0 |
| stc gbr, r1 |
| mov.l @(r0, r12), r0 |
| bra .Lexit |
| add r1, r0 |
| .align 2 |
| .Lerrno0: |
| .long errno@GOTTPOFF |
| .Lexit: |
| #else |
| mov.l .Lerrloc0, r1 |
| bsrf r1 |
| nop |
| .Lerrloc0b: |
| #endif |
| mov.l r8, @r0 |
| bra 9b |
| mov #-1, r0 |
| |
| .align 2 |
| .Lgot0: |
| .long _GLOBAL_OFFSET_TABLE_ |
| #if !USE___THREAD |
| .Lerrloc0: |
| .long __errno_location@PLT-(.Lerrloc0b-.) |
| #endif |
| .Lenable0: |
| .long __pthread_enable_asynccancel-.Lenable0b |
| .Ldisable0: |
| .long __pthread_disable_asynccancel-.Ldisable0b |
| .size __new_sem_wait,.-__new_sem_wait |
| versioned_symbol(libpthread, __new_sem_wait, sem_wait, GLIBC_2_1) |
| |
| |
| .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_r10-.Lpush_r8 |
| .byte 14 ! DW_CFA_def_cfa_offset |
| .uleb128 8 |
| .byte 0x8a ! DW_CFA_offset r10 |
| .uleb128 2 |
| .byte 4 ! DW_CFA_advance_loc4 |
| .ualong .Lpush_r12-.Lpush_r10 |
| .byte 14 ! DW_CFA_def_cfa_offset |
| .uleb128 12 |
| .byte 0x8c ! DW_CFA_offset r12 |
| .uleb128 3 |
| .byte 4 ! DW_CFA_advance_loc4 |
| .ualong .Lpush_pr-.Lpush_r12 |
| .byte 14 ! DW_CFA_def_cfa_offset |
| .uleb128 16 |
| .byte 0x91 ! DW_CFA_offset pr |
| .uleb128 4 |
| .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 |
