1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
| /*
| * 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
|
|