/* | |
* 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 |