diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64/sched_getcpu.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/sched_getcpu.S | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/sched_getcpu.S b/sysdeps/unix/sysv/linux/x86_64/sched_getcpu.S deleted file mode 100644 index b87f803ba7..0000000000 --- a/sysdeps/unix/sysv/linux/x86_64/sched_getcpu.S +++ /dev/null @@ -1,74 +0,0 @@ -/* Copyright (C) 2007-2015 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 <tls.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <kernel-features.h> - -/* For the calculation see asm/vsyscall.h. */ -#define VSYSCALL_ADDR_vgetcpu 0xffffffffff600800 - - -ENTRY (sched_getcpu) - /* Align stack and create local variable for result. */ - sub $0x8, %rsp - cfi_adjust_cfa_offset(8) - - movq %rsp, %rdi - xorl %esi, %esi - movl $VGETCPU_CACHE_OFFSET, %edx - addq %fs:0, %rdx - -#ifdef SHARED - movq __vdso_getcpu(%rip), %rax - PTR_DEMANGLE (%rax) - callq *%rax -#else -# ifdef __NR_getcpu - movl $__NR_getcpu, %eax - syscall -# ifndef __ASSUME_GETCPU_SYSCALL - cmpq $-ENOSYS, %rax - jne 1f -# endif -# endif -# ifndef __ASSUME_GETCPU_SYSCALL - movq $VSYSCALL_ADDR_vgetcpu, %rax - callq *%rax -1: -# else -# ifndef __NR_getcpu -# error "cannot happen" -# endif -# endif -#endif - - /* Local variable is result if the call is successful. */ - movl (%rsp), %edx - /* Restore stack pointer before we might jump to - SYSCALL_ERROR_LABEL which returns to the caller. */ - add $0x8, %rsp - cfi_adjust_cfa_offset(-8) - - cmpq $-4095, %rax - jae SYSCALL_ERROR_LABEL - - movl %edx, %eax - ret -PSEUDO_END(sched_getcpu) |