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
|
.section .text
.global __mlibc_do_asm_cp_syscall
.global __mlibc_syscall_begin
.global __mlibc_syscall_end
.type __mlibc_do_asm_cp_syscall, "function"
__mlibc_do_asm_cp_syscall:
push %ebx
push %esi
push %edi
push %ebp
; mov 16(%esp), %eax
mov 24(%esp), %ebx
mov 28(%esp), %ecx
mov 32(%esp), %edx
mov 36(%esp), %esi
mov 40(%esp), %edi
mov 44(%esp), %ebp
mov %gs:0x18, %al
__mlibc_syscall_begin:
/* tcbCancelEnableBit && tcbCancelTriggerBit */
and $((1 << 0) | (1 << 2)), %al
cmp $((1 << 0) | (1 << 2)), %al
je cancel
mov 20(%esp), %eax
int $0x80
__mlibc_syscall_end:
pop %ebp
pop %edi
pop %esi
pop %ebx
ret
cancel:
pop %ebp
pop %edi
pop %esi
pop %ebx
call __mlibc_do_cancel@PLT
hlt
.section .note.GNU-stack,"",%progbits
|