diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S | 464 |
1 files changed, 308 insertions, 156 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S index a1967f4922..01b906eeed 100644 --- a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S +++ b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_wait.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004 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 @@ -28,119 +28,33 @@ .text - .align 5 - .type __condvar_cleanup, @function - .globl __condvar_cleanup - .hidden __condvar_cleanup -__condvar_cleanup: - mov.l r8, @-r15 - mov.l r9, @-r15 - sts.l pr, @-r15 - mov r4, r9 - mov.l @(4,r9), r8 - - /* 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 - mov r8, r5 -#if cond_lock != 0 - add #cond_lock, r5 -#endif - mov.l .Lwait0, r1 - bsrf r1 - mov r2, r4 -.Lwait0b: -1: - 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) - - 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) - - /* Release internal lock. */ -#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 .Lwake0, r1 - bsrf r1 - nop -.Lwake0b: -2: - - /* Wake up all waiters to make sure no signal gets lost. */ - mov r8, r4 - add #wakeup_seq, 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 - - mov.l .Lmlocki1, r1 - bsrf r1 - mov.l @(8,r9), r4 -.Lmlocki1b: - - lds.l @r15+, pr - mov.l @r15+, r9 - rts - mov.l @r15+, r8 - - .align 2 -.Lwait0: - .long __lll_mutex_lock_wait-.Lwait0b -.Lwake0: - .long __lll_mutex_unlock_wake-.Lwake0b -.Lmlocki1: - .long __pthread_mutex_cond_lock-.Lmlocki1b - .size __condvar_cleanup, .-__condvar_cleanup - - /* int pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex) */ .globl __pthread_cond_wait .type __pthread_cond_wait, @function .align 5 __pthread_cond_wait: +.LSTARTCODE: mov.l r8, @-r15 +.Lpush_r8: mov.l r9, @-r15 +.Lpush_r9: mov.l r10, @-r15 +.Lpush_r10: mov.l r11, @-r15 +.Lpush_r11: mov.l r12, @-r15 +.Lpush_r12: sts.l pr, @-r15 +.Lpush_pr: add #-48, r15 +.Lalloc: mov r4, r8 mov r5, r9 +#ifdef PIC + mova .Lgot0, r0 + mov.l .Lgot0, r12 + add r0, r12 +#endif /* Get internal lock. */ mov #0, r3 @@ -153,12 +67,21 @@ __pthread_cond_wait: 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 15f mov.l r9, @(dep_mutex,r8) +15: /* Unlock the mutex. */ mov.l .Lmunlock0, r1 mov #0, r5 @@ -182,28 +105,6 @@ __pthread_cond_wait: mov.l r0,@(total_seq,r8) mov.l r1,@(total_seq+4,r8) - /* Install cancellation handler. */ -#ifdef PIC - mova .Lgot0, r0 - mov.l .Lgot0, r12 - add r0, r12 - mov.l .Lccleanup0, r5 - add r12, r5 -#else - mov.l .Lccleanup0, r5 -#endif - mov r15, r4 - add #16, r4 - - /* Prepare structure passed to cancellation handler. */ - mov.l r8, @(4,r15) - mov.l r9, @(8,r15) - - mov.l .Lccpush0, r1 - bsrf r1 - mov r15, r6 -.Lccpush0b: - /* Get and store current wakeup_seq value. */ mov.l @(wakeup_seq,r8), r10 mov.l @(wakeup_seq+4,r8), r11 @@ -218,6 +119,7 @@ __pthread_cond_wait: tst r2, r2 bf 3f 4: +.LcleanupSTART: mov.l .Lenable0, r1 bsrf r1 nop @@ -238,6 +140,7 @@ __pthread_cond_wait: bsrf r1 mov.l @r15, r4 .Ldisable0b: +.LcleanupEND: /* Lock. */ mov #0, r3 @@ -255,20 +158,15 @@ __pthread_cond_wait: mov.l @(wakeup_seq,r8), r2 mov.l @(wakeup_seq+4,r8), r3 - cmp/hi r11, r3 - bt 7f - cmp/hi r3, r11 - bt 8b - - cmp/hs r2, r10 + cmp/eq r3, r11 + bf 7f + cmp/eq r2, r10 bt 8b 7: - cmp/hi r1, r3 - bt 9f - cmp/hi r3, r1 + cmp/eq r1, r3 + bf 9f + cmp/eq r0, r2 bt 8b - cmp/hi r0, r2 - bf 8b 9: mov #1, r2 mov #0, r3 @@ -290,55 +188,41 @@ __pthread_cond_wait: bf 10f 11: - /* Remove cancellation handler. */ - mov r15, r4 - add #16, r4 - mov.l .Lcpop0, r1 - bsrf r1 - mov #0, r5 -.Lcpop0b: - - mov r9, r4 mov.l .Lmlocki0, r1 bsrf r1 - nop + mov r9, r4 .Lmlocki0b: /* We return the result of the mutex_lock operation. */ 14: add #48, r15 +.Lfree: lds.l @r15+, pr +.Lpop_pr: mov.l @r15+, r12 +.Lpop_r12: mov.l @r15+, r11 +.Lpop_r11: mov.l @r15+, r10 +.Lpop_r10: mov.l @r15+, r9 +.Lpop_r9: rts mov.l @r15+, r8 +.Lpop_r8: .align 2 .Lmunlock0: .long __pthread_mutex_unlock_usercnt-.Lmunlock0b -#ifdef PIC -.Lgot0: - .long _GLOBAL_OFFSET_TABLE_ -.Lccleanup0: - .long __condvar_cleanup@GOTOFF -#else -.Lccleanup0: - .long __condvar_cleanup -#endif -.Lccpush0: - .long __pthread_cleanup_push-.Lccpush0b .Lenable0: .long __pthread_enable_asynccancel-.Lenable0b .Ldisable0: .long __pthread_disable_asynccancel-.Ldisable0b -.Lcpop0: - .long __pthread_cleanup_pop-.Lcpop0b .Lmlocki0: .long __pthread_mutex_cond_lock-.Lmlocki0b 1: +.LSblSTART: /* Initial locking failed. */ mov r8, r5 #if cond_lock != 0 @@ -412,6 +296,7 @@ __pthread_cond_wait: 13: bra 14b mov.l @(12,r15), r0 +.LSblEND: .align 2 .Lmwait0: @@ -427,3 +312,270 @@ __pthread_cond_wait: .size __pthread_cond_wait, .-__pthread_cond_wait versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, GLIBC_2_3_2) + + + .type __condvar_w_cleanup, @function +__condvar_w_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 .Lmwait3, r1 + bsrf r1 + mov r2, r4 +.Lmwait3b: + +1: + 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) + +#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 .Lmwake3, r1 + bsrf r1 + nop +.Lmwake3b: + +2: + /* Wake up all waiters to make sure no signal gets lost. */ + mov r8, r4 + add #wakeup_seq, 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 + + mov.l .Lmlocki3, r1 + bsrf r1 + mov r9, r4 +.Lmlocki3b: + +.LcallUR: + mov.l .Lresume, r1 +#ifdef PIC + add r12, r1 +#endif + jsr @r1 + mov r11, r4 + sleep + + .align 2 +.Lmwait3: + .long __lll_mutex_lock_wait-.Lmwait3b +.Lmwake3: + .long __lll_mutex_unlock_wake-.Lmwake3b +.Lmlocki3: + .long __pthread_mutex_cond_lock-.Lmlocki3b +.Lresume: +#ifdef PIC + .long _Unwind_Resume@GOTOFF +#else + .long _Unwind_Resume +#endif +.LENDCODE: + .size __condvar_w_cleanup, .-__condvar_w_cleanup + + + .section .gcc_except_table,"a",@progbits +.LexceptSTART: + .byte 0xff ! @LPStart format (omit) + .byte 0xff ! @TType format (omit) + .byte 0x0b ! call-site format + ! DW_EH_PE_sdata4 + .uleb128 .Lcstend-.Lcstbegin +.Lcstbegin: + .ualong .LcleanupSTART-.LSTARTCODE + .ualong .LcleanupEND-.LcleanupSTART + .ualong __condvar_w_cleanup-.LSTARTCODE + .uleb128 0 + .ualong .LcallUR-.LSTARTCODE + .ualong .LENDCODE-.LcallUR + .ualong 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 2 +.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 0x4 + .ualong .Lpush_r8-.LSTARTCODE + .byte 0xe + .uleb128 4 + .byte 0x88 + .uleb128 1 + .byte 0x4 + .ualong .Lpush_r9-.Lpush_r8 + .byte 0xe + .uleb128 8 + .byte 0x89 + .uleb128 2 + .byte 0x4 + .ualong .Lpush_r10-.Lpush_r9 + .byte 0xe + .uleb128 12 + .byte 0x8a + .uleb128 3 + .byte 0x4 + .ualong .Lpush_r11-.Lpush_r10 + .byte 0xe + .uleb128 16 + .byte 0x8b + .uleb128 4 + .byte 0x4 + .ualong .Lpush_r12-.Lpush_r11 + .byte 0xe + .uleb128 20 + .byte 0x8c + .uleb128 5 + .byte 0x4 + .ualong .Lpush_pr-.Lpush_r12 + .byte 0xe + .uleb128 24 + .byte 0x91 + .uleb128 6 + .byte 0x4 + .ualong .Lalloc-.Lpush_pr + .byte 0xe + .uleb128 72 + .byte 0x4 + .ualong .Lfree-.Lalloc + .byte 0xe + .uleb128 24 + .byte 0x4 + .ualong .Lpop_pr-.Lfree + .byte 0xe + .uleb128 20 + .byte 0xd1 + .byte 0x4 + .ualong .Lpop_r12-.Lpop_pr + .byte 0xe + .uleb128 16 + .byte 0xcc + .byte 0x4 + .ualong .Lpop_r11-.Lpop_r12 + .byte 0xe + .uleb128 12 + .byte 0xcb + .byte 0x4 + .ualong .Lpop_r10-.Lpop_r11 + .byte 0xe + .uleb128 8 + .byte 0xca + .byte 0x4 + .ualong .Lpop_r9-.Lpop_r10 + .byte 0xe + .uleb128 4 + .byte 0xc9 + .byte 0x4 + .ualong .Lpop_r8-.Lpop_r9 + .byte 0xe + .uleb128 0 + .byte 0xc8 + .byte 0x4 + .ualong .LSblSTART-.Lpop_r8 + .byte 0xe + .uleb128 72 + .byte 0x4 + .ualong .LSblEND-.LSblSTART + .byte 0xe + .uleb128 72 + .align 2 +.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 |