18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * vsyscall_emu_64.S: Vsyscall emulation page 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Copyright (c) 2011 Andy Lutomirski 68c2ecf20Sopenharmony_ci */ 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#include <linux/linkage.h> 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci#include <asm/irq_vectors.h> 118c2ecf20Sopenharmony_ci#include <asm/page_types.h> 128c2ecf20Sopenharmony_ci#include <asm/unistd_64.h> 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_ci__PAGE_ALIGNED_DATA 158c2ecf20Sopenharmony_ci .globl __vsyscall_page 168c2ecf20Sopenharmony_ci .balign PAGE_SIZE, 0xcc 178c2ecf20Sopenharmony_ci .type __vsyscall_page, @object 188c2ecf20Sopenharmony_ci__vsyscall_page: 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci mov $__NR_gettimeofday, %rax 218c2ecf20Sopenharmony_ci syscall 228c2ecf20Sopenharmony_ci ret 238c2ecf20Sopenharmony_ci int3 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci .balign 1024, 0xcc 268c2ecf20Sopenharmony_ci mov $__NR_time, %rax 278c2ecf20Sopenharmony_ci syscall 288c2ecf20Sopenharmony_ci ret 298c2ecf20Sopenharmony_ci int3 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci .balign 1024, 0xcc 328c2ecf20Sopenharmony_ci mov $__NR_getcpu, %rax 338c2ecf20Sopenharmony_ci syscall 348c2ecf20Sopenharmony_ci ret 358c2ecf20Sopenharmony_ci int3 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_ci .balign 4096, 0xcc 388c2ecf20Sopenharmony_ci 398c2ecf20Sopenharmony_ci .size __vsyscall_page, 4096 40