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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#include <features.h>
#include <sys/syscall.h>
#define _ERRNO_H 1
#include <bits/errno.h>
#ifdef __NR_clone
.text
.global clone
.type clone,@function
.align 4
clone:
be r1, r0, 2f
be r2, r0, 2f
mvi r8, __NR_clone
scall
mvi r3, -4095
bgeu r1, r3, 1f
be r1, r0, __thread_start
ret
__thread_start:
mvi fp, 0
call r2
calli HIDDEN_JUMPTARGET(_exit)
/* Stop the unstoppable. */
9:
bi 9b
2:
mvi r1, -EINVAL
1:
addi sp, sp, -8
sw (sp+4), ra
sw (sp+8), r1
calli __errno_location
lw r2, (sp+8)
lw ra, (sp+4)
sub r2, r0, r2
sw (r1+0), r2
mvi r1, -1
addi sp, sp, 8
ret
#endif /* __NR_clone */
|
