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
|
/* Cancellable syscall wrapper. Linux/loongarch version.
Copyright (C) 2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <descr-const.h>
ENTRY (__syscall_cancel_arch)
.global __syscall_cancel_arch_start
__syscall_cancel_arch_start:
/* if (*cancelhandling & CANCELED_BITMASK)
__syscall_do_cancel() */
ld.w t0, a0, 0
andi t0, t0, TCB_CANCELED_BITMASK
bnez t0, 1f
/* Issue a 6 argument syscall. */
move t1, a1
move a0, a2
move a1, a3
move a2, a4
move a3, a5
move a4, a6
move a5, a7
move a7, t1
syscall 0
.global __syscall_cancel_arch_end
__syscall_cancel_arch_end:
jr ra
1:
b __syscall_do_cancel
END (__syscall_cancel_arch)
|
