| /* |
| * vsyscall_emu_64.S: Vsyscall emulation page |
| * |
| * Copyright (c) 2011 Andy Lutomirski |
| * |
| * Subject to the GNU General Public License, version 2 |
| */ |
| |
| #include <linux/linkage.h> |
| |
| #include <asm/irq_vectors.h> |
| #include <asm/page_types.h> |
| #include <asm/unistd_64.h> |
| |
| __PAGE_ALIGNED_DATA |
| .globl __vsyscall_page |
| .balign PAGE_SIZE, 0xcc |
| .type __vsyscall_page, @object |
| __vsyscall_page: |
| |
| mov $__NR_gettimeofday, %rax |
| syscall |
| ret |
| |
| .balign 1024, 0xcc |
| mov $__NR_time, %rax |
| syscall |
| ret |
| |
| .balign 1024, 0xcc |
| mov $__NR_getcpu, %rax |
| syscall |
| ret |
| |
| .balign 4096, 0xcc |
| |
| .size __vsyscall_page, 4096 |