Gitiles
Code Review Sign In
gerrit.omnirom.org / android_bionic / 6e9d51701eabe26d2132a214e07b10384ea60a8c / . / libc / arch-x86 / bionic / futex_x86.S
blob: e98a391ee8686858d6b3a94d591d5bdb1bcddd30 [file] [log] [blame]
The Android Open Source Project1dc9e472009-03-03 19:28:35 -0800[diff] [blame]1#include <sys/linux-syscalls.h>
2
3#define FUTEX_WAIT 0
4#define FUTEX_WAKE 1
5
6
7/*
8 * int __futex_wait(volatile void *ftx, int val, const struct timespec *timeout)
9 */
10.text
11.globl __futex_wait
12.type __futex_wait, @function
13.align 4
14__futex_wait:
15 pushl %ebx
16 pushl %esi
17 mov 12(%esp), %ebx /* ftx */
18 movl $FUTEX_WAIT, %ecx
19 mov 16(%esp), %edx /* val */
20 mov 20(%esp), %esi /* timeout */
21 movl $__NR_futex, %eax
22 int $0x80
23 popl %esi
24 popl %ebx
25 ret
26
27
28/* int __futex_wake(volatile void *ftx, int count) */
29
30.text
31.globl __futex_wake
32.type __futex_wake, @function
33.align 4
34__futex_wake:
35 pushl %ebx
36 mov 8(%esp), %ebx /* ftx */
37 movl $FUTEX_WAKE, %ecx
38 mov 12(%esp), %edx /* count */
39 movl $__NR_futex, %eax
40 int $0x80
41 popl %ebx
42 ret
43
David 'Digit' Turner88f06cd2010-03-18 17:13:41 -0700[diff] [blame]44/* int __futex_syscall3(volatile void *ftx, int op, int count) */
45.text
46.globl __futex_syscall3
47.type __futex_syscall3, @function
48.align 4
49__futex_syscall3:
50 pushl %ebx
51 movl 8(%esp), %ebx /* ftx */
52 movl 12(%esp), %ecx /* op */
53 movl 16(%esp), %edx /* value */
54 movl $__NR_futex, %eax
55 int $0x80
56 popl %ebx
57 ret
58
59/* int __futex_syscall4(volatile void *ftx, int op, int val, const struct timespec *timeout) */
60.text
61.globl __futex_syscall4
62.type __futex_syscall4, @function
63.align 4
64__futex_syscall4:
65 pushl %ebx
66 pushl %esi
67 movl 12(%esp), %ebx /* ftx */
68 movl 16(%esp), %ecx /* op */
69 movl 20(%esp), %edx /* val */
70 movl 24(%esp), %esi /* timeout */
71 movl $__NR_futex, %eax
72 int $0x80
73 popl %esi
74 popl %ebx
75 ret