1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * vsyscall_emu_64.S: Vsyscall emulation page 4 * 5 * Copyright (c) 2011 Andy Lutomirski 6 */ 7 8#include <linux/linkage.h> 9 10#include <asm/irq_vectors.h> 11#include <asm/page_types.h> 12#include <asm/unistd_64.h> 13 14__PAGE_ALIGNED_DATA 15 .globl __vsyscall_page 16 .balign PAGE_SIZE, 0xcc 17 .type __vsyscall_page, @object 18__vsyscall_page: 19 20 mov $__NR_gettimeofday, %rax 21 syscall 22 RET 23 24 .balign 1024, 0xcc 25 mov $__NR_time, %rax 26 syscall 27 RET 28 29 .balign 1024, 0xcc 30 mov $__NR_getcpu, %rax 31 syscall 32 RET 33 34 .balign 4096, 0xcc 35 36 .size __vsyscall_page, 4096 37