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
53
54
55
56
57
58
59
60
61
62
63
64
|
/* Copyright (C) 1992-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Alexandre Oliva <aoliva@redhat.com>.
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 <sysdeps/unix/mips/sysdep.h>
#ifdef __ASSEMBLER__
/* Note that while it's better structurally, going back to call __syscall_error
can make things confusing if you're debugging---it looks like it's jumping
backwards into the previous fn. */
#ifdef __PIC__
#define PSEUDO(name, syscall_name, args) \
.align 2; \
.set nomips16; \
cfi_startproc; \
99:; \
.set noat; \
.cpsetup t9, $1, name; \
cfi_register (gp, $1); \
.set at; \
la t9,__syscall_error; \
.cpreturn; \
cfi_restore (gp); \
jr t9; \
cfi_endproc; \
ENTRY(name) \
li v0, SYS_ify(syscall_name); \
syscall; \
bne a3, zero, 99b; \
L(syse1):
#else
#define PSEUDO(name, syscall_name, args) \
.set noreorder; \
.align 2; \
.set nomips16; \
cfi_startproc; \
99: j __syscall_error; \
nop; \
cfi_endproc; \
ENTRY(name) \
.set noreorder; \
li v0, SYS_ify(syscall_name); \
syscall; \
.set reorder; \
bne a3, zero, 99b; \
L(syse1):
#endif
#endif
|
