diff options
author | Austin Foxley <austinf@cetoncorp.com> | 2010-02-16 12:27:18 -0800 |
---|---|---|
committer | Austin Foxley <austinf@cetoncorp.com> | 2010-02-16 12:27:18 -0800 |
commit | a032a6587011cbdac8c2f7e11f15dc4e592bbb55 (patch) | |
tree | b8d8dfc6abf0168e098223c2134a3e4bd7640942 /libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S | |
parent | 70f1d42b13a741f603472f405299e5d2938aa728 (diff) |
mass sync with glibc nptl
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S')
-rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S | 266 |
1 files changed, 192 insertions, 74 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S index 40782fcaf..774442f23 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/sem_timedwait.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. +/* 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 @@ -19,31 +19,22 @@ #include <sysdep.h> #include <pthread-errnos.h> #include <tcb-offsets.h> +#include <structsem.h> +#include <lowlevellock.h> #include "lowlevel-atomic.h" -#define SYS_gettimeofday __NR_gettimeofday -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 +#if VALUE != 0 +# error "code needs to be rewritten for VALUE != 0" +#endif .text .globl sem_timedwait .type sem_timedwait,@function .align 5 - cfi_startproc sem_timedwait: - /* First check for cancellation. */ - stc gbr, r0 - mov.w .Lchand, r1 - mov.l @(r0,r1), r0 - mov #0xf9, r1 - and r1, r0 - cmp/eq #8, r0 - bf 0f - bra 10f - stc gbr, r0 -0: +.LSTARTCODE: mov.l @r4, r0 2: tst r0, r0 @@ -60,22 +51,17 @@ sem_timedwait: 1: /* Check whether the timeout value is valid. */ mov.l r8, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r8, 0) +.Lpush_r8: mov.l r9, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r9, 0) +.Lpush_r9: mov.l r10, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r10, 0) +.Lpush_r10: mov.l r12, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r12, 0) +.Lpush_r12: sts.l pr, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (pr, 0) +.Lpush_pr: add #-8, r15 - cfi_adjust_cfa_offset(8) +.Lalloc: mov r4, r8 mov r5, r9 @@ -85,17 +71,13 @@ sem_timedwait: cmp/hs r1, r0 bt/s 6f mov #EINVAL, r0 -7: - mov.l .Lenable0, r1 - bsrf r1 - nop -.Lenable0b: - mov r0, r10 + INC (@(NWAITERS,r8),r2) +7: /* Compute relative timeout. */ mov r15, r4 mov #0, r5 - mov #SYS_gettimeofday, r3 + mov #__NR_gettimeofday, r3 trapa #0x12 SYSCALL_INST_PAD @@ -116,15 +98,27 @@ sem_timedwait: 5: cmp/pz r2 bf/s 6f /* Time is already up. */ - mov #ETIMEDOUT, r0 + mov #ETIMEDOUT, r0 /* Store relative timeout. */ mov.l r2, @r15 mov.l r3, @(4,r15) - /* Futex call. */ +.LcleanupSTART: + mov.l .Lenable0, r1 + bsrf r1 + nop +.Lenable0b: + mov r0, r10 + mov r8, r4 - mov #FUTEX_WAIT, r5 +#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 @@ -138,6 +132,7 @@ sem_timedwait: mov r0, r10 .Ldisable0b: mov r10, r0 +.LcleanupEND: tst r0, r0 bt 9f @@ -156,6 +151,10 @@ sem_timedwait: 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 @@ -163,12 +162,12 @@ sem_timedwait: mov.l @r15+, r9 mov.l @r15+, r8 rts - mov #0, r0 + nop 3: neg r0, r0 6: - mov r0, r8 + mov r0, r10 mova .Lgot2, r0 mov.l .Lgot2, r12 add r0, r12 @@ -177,11 +176,11 @@ sem_timedwait: mov.l .Lerrno2, r0 stc gbr, r1 mov.l @(r0, r12), r0 - bra .Lexit - add r1, r0 - .align 2 + bra .Lexit + add r1, r0 + .align 2 .Lerrno2: - .long errno@GOTTPOFF + .long errno@GOTTPOFF .Lexit: #else mov.l .Lerrloc2, r1 @@ -189,39 +188,13 @@ sem_timedwait: nop .Lerrloc2b: #endif - mov.l r8, @r0 - add #8, r15 - lds.l @r15+, pr - mov.l @r15+, r12 - mov.l @r15+, r10 - mov.l @r15+, r9 - mov.l @r15+, r8 - rts + mov.l r10, @r0 + DEC (@(NWAITERS,r8), r2) + bra 10b mov #-1, r0 -10: - /* Canceled. */ - mov.w .Lresult, r1 - mov #-1, r2 - mov.l r2, @(r0,r1) - mov.w .Lchand, r0 - or.b #0x10, @(r0,gbr) - stc gbr, r0 - mov.w .Lclbuf, r1 - mov.l .Lunwind, r2 - braf r2 - mov.l @(r0,r1), r4 -.Lunwindb: - cfi_endproc - .L1k: .word 1000 -.Lchand: - .word CANCELHANDLING - TLS_PRE_TCB_SIZE -.Lresult: - .word RESULT - TLS_PRE_TCB_SIZE -.Lclbuf: - .word CLEANUP_JMP_BUF - TLS_PRE_TCB_SIZE .align 2 .L1g: .long 1000000000 @@ -235,6 +208,151 @@ sem_timedwait: .long __pthread_enable_asynccancel-.Lenable0b .Ldisable0: .long __pthread_disable_asynccancel-.Ldisable0b -.Lunwind: - .long HIDDEN_JUMPTARGET (__pthread_unwind)-.Lunwindb .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 |