diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64/sem_wait.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/sem_wait.S | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/sem_wait.S b/sysdeps/unix/sysv/linux/x86_64/sem_wait.S deleted file mode 100644 index 2e7b131923..0000000000 --- a/sysdeps/unix/sysv/linux/x86_64/sem_wait.S +++ /dev/null @@ -1,176 +0,0 @@ -/* Copyright (C) 2002-2015 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - 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 <lowlevellock.h> -#include <shlib-compat.h> -#include <pthread-errnos.h> -#include <structsem.h> - - - .text - - .globl sem_wait - .type sem_wait,@function - .align 16 -sem_wait: -.LSTARTCODE: - cfi_startproc -#ifdef SHARED - cfi_personality(DW_EH_PE_pcrel | DW_EH_PE_sdata4 | DW_EH_PE_indirect, - DW.ref.__gcc_personality_v0) - cfi_lsda(DW_EH_PE_pcrel | DW_EH_PE_sdata4, .LexceptSTART) -#else - cfi_personality(DW_EH_PE_udata4, __gcc_personality_v0) - cfi_lsda(DW_EH_PE_udata4, .LexceptSTART) -#endif - -#if VALUE == 0 - movl (%rdi), %eax -#else - movl VALUE(%rdi), %eax -#endif -2: testl %eax, %eax - je 1f - - leal -1(%rax), %edx - LOCK -#if VALUE == 0 - cmpxchgl %edx, (%rdi) -#else - cmpxchgl %edx, VALUE(%rdi) -#endif - jne 2b - - xorl %eax, %eax - retq - - /* This push is only needed to store the sem_t pointer for the - exception handler. */ -1: pushq %rdi - cfi_adjust_cfa_offset(8) - - LOCK - LP_OP(add) $1, NWAITERS(%rdi) - -.LcleanupSTART: -6: call __pthread_enable_asynccancel - movl %eax, %r8d - - xorq %r10, %r10 - movl $SYS_futex, %eax -#if FUTEX_WAIT == 0 - movl PRIVATE(%rdi), %esi -#else - movl $FUTEX_WAIT, %esi - orl PRIVATE(%rdi), %esi -#endif - xorl %edx, %edx - syscall - movq %rax, %rcx - - xchgq %r8, %rdi - call __pthread_disable_asynccancel -.LcleanupEND: - movq %r8, %rdi - - testq %rcx, %rcx - je 3f - cmpq $-EWOULDBLOCK, %rcx - jne 4f - -3: -#if VALUE == 0 - movl (%rdi), %eax -#else - movl VALUE(%rdi), %eax -#endif -5: testl %eax, %eax - je 6b - - leal -1(%rax), %edx - LOCK -#if VALUE == 0 - cmpxchgl %edx, (%rdi) -#else - cmpxchgl %edx, VALUE(%rdi) -#endif - jne 5b - - xorl %eax, %eax - -9: LOCK - LP_OP(sub) $1, NWAITERS(%rdi) - - leaq 8(%rsp), %rsp - cfi_adjust_cfa_offset(-8) - - retq - - cfi_adjust_cfa_offset(8) -4: negq %rcx - movq errno@gottpoff(%rip), %rdx - movl %ecx, %fs:(%rdx) - orl $-1, %eax - - jmp 9b - .size sem_wait,.-sem_wait - - - .type sem_wait_cleanup,@function -sem_wait_cleanup: - movq (%rsp), %rdi - LOCK - LP_OP(sub) $1, NWAITERS(%rdi) - movq %rax, %rdi -.LcallUR: - call _Unwind_Resume@PLT - hlt -.LENDCODE: - cfi_endproc - .size sem_wait_cleanup,.-sem_wait_cleanup - - - .section .gcc_except_table,"a",@progbits -.LexceptSTART: - .byte DW_EH_PE_omit # @LPStart format - .byte DW_EH_PE_omit # @TType format - .byte DW_EH_PE_uleb128 # call-site format - .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: - - -#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 LP_SIZE - .type DW.ref.__gcc_personality_v0, @object - .size DW.ref.__gcc_personality_v0, LP_SIZE -DW.ref.__gcc_personality_v0: - ASM_ADDR __gcc_personality_v0 -#endif |