diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S')
| -rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S | 539 |
1 files changed, 0 insertions, 539 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S deleted file mode 100644 index bac9dd4f2..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S +++ /dev/null @@ -1,539 +0,0 @@ -/* Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009 - 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 <pthread-errnos.h> -#include <bits/kernel-features.h> -#include <lowlevellock.h> -#include <tcb-offsets.h> -#include "lowlevel-atomic.h" - - .text - -#ifdef __ASSUME_PRIVATE_FUTEX -# define LOAD_PRIVATE_FUTEX_WAIT(reg,tmp,tmp2) \ - mov #(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), reg; \ - extu.b reg, reg -# define LOAD_PRIVATE_FUTEX_WAKE(reg,tmp,tmp2) \ - mov #(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), reg; \ - extu.b reg, reg -# define LOAD_FUTEX_WAIT(reg,tmp,tmp2) \ - mov #(FUTEX_WAIT | FUTEX_PRIVATE_FLAG), tmp; \ - extu.b tmp, tmp; \ - xor tmp, reg -# define LOAD_FUTEX_WAIT_ABS(reg,tmp,tmp2) \ - mov #(FUTEX_WAIT_BITSET | FUTEX_PRIVATE_FLAG), tmp; \ - extu.b tmp, tmp; \ - mov #(FUTEX_CLOCK_REALTIME >> 8), tmp2; \ - swap.b tmp2, tmp2; \ - or tmp2, tmp; \ - xor tmp, reg -# define LOAD_FUTEX_WAKE(reg,tmp,tmp2) \ - mov #(FUTEX_WAKE | FUTEX_PRIVATE_FLAG), tmp; \ - extu.b tmp, tmp; \ - xor tmp, reg -#else -# if FUTEX_WAIT == 0 -# define LOAD_PRIVATE_FUTEX_WAIT(reg,tmp,tmp2) \ - stc gbr, tmp ; \ - mov.w 99f, reg ; \ - add reg, tmp ; \ - bra 98f ; \ - mov.l @tmp, reg ; \ -99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ -98: -# else -# define LOAD_PRIVATE_FUTEX_WAIT(reg,tmp,tmp2) \ - stc gbr, tmp ; \ - mov.w 99f, reg ; \ - add reg, tmp ; \ - mov.l @tmp, reg ; \ - bra 98f ; \ - mov #FUTEX_WAIT, tmp ; \ -99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ -98: or tmp, reg -# endif -# define LOAD_PRIVATE_FUTEX_WAKE(reg,tmp,tmp2) \ - stc gbr, tmp ; \ - mov.w 99f, reg ; \ - add reg, tmp ; \ - mov.l @tmp, reg ; \ - bra 98f ; \ - mov #FUTEX_WAKE, tmp ; \ -99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ -98: or tmp, reg -# if FUTEX_WAIT == 0 -# define LOAD_FUTEX_WAIT(reg,tmp,tmp2) \ - stc gbr, tmp ; \ - mov.w 99f, tmp2 ; \ - add tmp2, tmp ; \ - mov.l @tmp, tmp2 ; \ - bra 98f ; \ - mov #FUTEX_PRIVATE_FLAG, tmp ; \ -99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ -98: extu.b tmp, tmp ; \ - xor tmp, reg ; \ - and tmp2, reg -# else -# define LOAD_FUTEX_WAIT(reg,tmp,tmp2) \ - stc gbr, tmp ; \ - mov.w 99f, tmp2 ; \ - add tmp2, tmp ; \ - mov.l @tmp, tmp2 ; \ - bra 98f ; \ - mov #FUTEX_PRIVATE_FLAG, tmp ; \ -99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ -98: extu.b tmp, tmp ; \ - xor tmp, reg ; \ - and tmp2, reg ; \ - mov #FUTEX_WAIT, tmp ; \ - or tmp, reg -# endif -# define LOAD_FUTEX_WAIT_ABS(reg,tmp,tmp2) \ - stc gbr, tmp ; \ - mov.w 99f, tmp2 ; \ - add tmp2, tmp ; \ - mov.l @tmp, tmp2 ; \ - bra 98f ; \ - mov #FUTEX_PRIVATE_FLAG, tmp ; \ -99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ -98: extu.b tmp, tmp ; \ - xor tmp, reg ; \ - and tmp2, reg ; \ - mov #FUTEX_WAIT_BITSET, tmp ; \ - mov #(FUTEX_CLOCK_REALTIME >> 8), tmp2; \ - swap.b tmp2, tmp2; \ - or tmp2, tmp; \ - or tmp, reg -# define LOAD_FUTEX_WAKE(reg,tmp,tmp2) \ - stc gbr, tmp ; \ - mov.w 99f, tmp2 ; \ - add tmp2, tmp ; \ - mov.l @tmp, tmp2 ; \ - bra 98f ; \ - mov #FUTEX_PRIVATE_FLAG, tmp ; \ -99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \ -98: extu.b tmp, tmp ; \ - xor tmp, reg ; \ - and tmp2, reg ; \ - mov #FUTEX_WAKE, tmp ; \ - or tmp, reg -#endif - - .globl __lll_lock_wait_private - .type __lll_lock_wait_private,@function - .hidden __lll_lock_wait_private - .align 5 - cfi_startproc -__lll_lock_wait_private: - mov.l r8, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r8, 0) - mov r4, r6 - mov r5, r8 - mov #0, r7 /* No timeout. */ - LOAD_PRIVATE_FUTEX_WAIT (r5, r0, r1) - - mov #2, r4 - cmp/eq r4, r6 - bf 2f - -1: - mov r8, r4 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - -2: - mov #2, r6 - XCHG (r6, @r8, r2) - tst r2, r2 - bf 1b - - mov.l @r15+, r8 - rts - mov r2, r0 - cfi_endproc - .size __lll_lock_wait_private,.-__lll_lock_wait_private - -#ifdef NOT_IN_libc - .globl __lll_lock_wait - .type __lll_lock_wait,@function - .hidden __lll_lock_wait - .align 5 - cfi_startproc -__lll_lock_wait: - mov.l r9, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r9, 0) - mov.l r8, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r8, 0) - mov r6, r9 - mov r4, r6 - mov r5, r8 - mov #0, r7 /* No timeout. */ - mov r9, r5 - LOAD_FUTEX_WAIT (r5, r0, r1) - - mov #2, r4 - cmp/eq r4, r6 - bf 2f - -1: - mov r8, r4 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - -2: - mov #2, r6 - XCHG (r6, @r8, r2) - tst r2, r2 - bf 1b - - mov.l @r15+, r8 - mov.l @r15+, r9 - ret - mov r2, r0 - cfi_endproc - .size __lll_lock_wait,.-__lll_lock_wait - - /* r5 (r8): futex - r7 (r11): flags - r6 (r9): timeout - r4 (r10): futex value - */ - .globl __lll_timedlock_wait - .type __lll_timedlock_wait,@function - .hidden __lll_timedlock_wait - .align 5 - cfi_startproc -__lll_timedlock_wait: - mov.l r12, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r12, 0) - -# ifndef __ASSUME_FUTEX_CLOCK_REALTIME - mov.l .Lhave, r1 -# ifdef __PIC__ - mova .Lgot, r0 - mov.l .Lgot, r12 - add r0, r12 - add r12, r1 -# endif - mov.l @r1, r0 - tst r0, r0 - bt .Lreltmo -# endif - - mov r4, r2 - mov r5, r4 - mov r7, r5 - mov r6, r7 - LOAD_FUTEX_WAIT_ABS (r5, r0, r1) - - mov #2, r6 - cmp/eq r6, r2 - bf/s 2f - mov r6, r2 - -1: - mov #2, r6 - mov #-1, r1 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x16 - SYSCALL_INST_PAD - mov r0, r6 - -2: - XCHG (r2, @r4, r3) /* NB: lock is implied */ - - tst r3, r3 - bt/s 3f - mov r6, r0 - - cmp/eq #-ETIMEDOUT, r0 - bt 4f - cmp/eq #-EINVAL, r0 - bf 1b -4: - neg r0, r3 -3: - mov r3, r0 - rts - mov.l @r15+, r12 - - .align 2 -# ifndef __ASSUME_FUTEX_CLOCK_REALTIME -# ifdef __PIC__ -.Lgot: - .long _GLOBAL_OFFSET_TABLE_ -.Lhave: - .long __have_futex_clock_realtime@GOTOFF -# else -.Lhave: - .long __have_futex_clock_realtime -# endif - -.Lreltmo: - /* Check for a valid timeout value. */ - mov.l @(4,r6), r1 - mov.l .L1g, r0 - cmp/hs r0, r1 - bt 3f - - mov.l r11, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r11, 0) - mov.l r10, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r10, 0) - mov.l r9, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r9, 0) - mov.l r8, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r8, 0) - mov r7, r11 - mov r4, r10 - mov r6, r9 - mov r5, r8 - - /* Stack frame for the timespec and timeval structs. */ - add #-8, r15 - cfi_adjust_cfa_offset(8) - - mov #2, r2 - XCHG (r2, @r8, r3) - - tst r3, r3 - bt 6f - -1: - /* Get current time. */ - mov r15, r4 - mov #0, r5 - mov #__NR_gettimeofday, r3 - trapa #0x12 - SYSCALL_INST_PAD - - /* Compute relative timeout. */ - mov.l @(4,r15), r0 - mov.w .L1k, r1 - dmulu.l r0, r1 /* Micro 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 4f - mov.l .L1g, r1 - add r1, r3 - add #-1, r2 -4: - cmp/pz r2 - bf 2f /* Time is already up. */ - - mov.l r2, @r15 /* Store relative timeout. */ - mov.l r3, @(4,r15) - - mov r8, r4 - mov r11, r5 - LOAD_FUTEX_WAIT (r5, r0, r1) - mov r10, r6 - mov r15, r7 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - mov r0, r5 - - mov #2, r2 - XCHG (r2, @r8, r3) - - tst r3, r3 - bt/s 6f - mov #-ETIMEDOUT, r1 - cmp/eq r5, r1 - bf 1b - -2: mov #ETIMEDOUT, r3 - -6: - mov r3, r0 - add #8, r15 - mov.l @r15+, r8 - mov.l @r15+, r9 - mov.l @r15+, r10 - mov.l @r15+, r11 - rts - mov.l @r15+, r12 - -3: - mov.l @r15+, r12 - rts - mov #EINVAL, r0 -# endif - cfi_endproc - -.L1k: - .word 1000 - .align 2 -.L1g: - .long 1000000000 - - .size __lll_timedlock_wait,.-__lll_timedlock_wait -#endif - - .globl __lll_unlock_wake_private - .type __lll_unlock_wake_private,@function - .hidden __lll_unlock_wake_private - .align 5 - cfi_startproc -__lll_unlock_wake_private: - LOAD_PRIVATE_FUTEX_WAKE (r5, r0, r1) - mov #1, r6 /* Wake one thread. */ - mov #0, r7 - mov.l r7, @r4 /* Stores 0. */ - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - rts - nop - cfi_endproc - .size __lll_unlock_wake_private,.-__lll_unlock_wake_private - -#ifdef NOT_IN_libc - .globl __lll_unlock_wake - .type __lll_unlock_wake,@function - .hidden __lll_unlock_wake - .align 5 - cfi_startproc -__lll_unlock_wake: - LOAD_FUTEX_WAKE (r5, r0, r1) - mov #1, r6 /* Wake one thread. */ - mov #0, r7 - mov.l r7, @r4 /* Stores 0. */ - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - rts - nop - cfi_endproc - .size __lll_unlock_wake,.-__lll_unlock_wake - - .globl __lll_timedwait_tid - .type __lll_timedwait_tid,@function - .hidden __lll_timedwait_tid - .align 5 - cfi_startproc -__lll_timedwait_tid: - mov.l r9, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r9, 0) - mov.l r8, @-r15 - cfi_adjust_cfa_offset(4) - cfi_rel_offset (r8, 0) - mov r4, r8 - mov r5, r9 - - /* Stack frame for the timespec and timeval structs. */ - add #-8, r15 - cfi_adjust_cfa_offset(8) - -2: - /* Get current time. */ - mov r15, r4 - mov #0, r5 - mov #__NR_gettimeofday, r3 - trapa #0x12 - SYSCALL_INST_PAD - - /* Compute relative timeout. */ - mov.l @(4,r15), r0 - mov.w .L1k2, r1 - dmulu.l r0, r1 /* Micro 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 .L1g2, r1 - add r1, r3 - add #-1, r2 -5: - cmp/pz r2 - bf 6f /* Time is already up. */ - - mov.l r2, @r15 /* Store relative timeout. */ - mov.l r3, @(4,r15) - - mov.l @r8, r2 - tst r2, r2 - bt 4f - - mov r8, r4 - /* XXX The kernel so far uses global futex for the wakeup at - all times. */ - mov #0, r5 - extu.b r5, r5 - mov r2, r6 - mov r15, r7 - mov #SYS_futex, r3 - extu.b r3, r3 - trapa #0x14 - SYSCALL_INST_PAD - - mov.l @r8, r2 - tst r2, r2 - bf 1f -4: - mov #0, r0 -3: - add #8, r15 - mov.l @r15+, r8 - rts - mov.l @r15+, r9 -1: - /* Check whether the time expired. */ - mov #-ETIMEDOUT, r1 - cmp/eq r0, r1 - bf 2b -6: - bra 3b - mov #ETIMEDOUT, r0 - cfi_endproc - -.L1k2: - .word 1000 - .align 2 -.L1g2: - .long 1000000000 - .size __lll_timedwait_tid,.-__lll_timedwait_tid -#endif |