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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/* Copyright (C) 1992-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Brendan Kehoe (brendan@zen.org).
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>
#define _ERRNO_H
#include <bits/errno.h>
#include <sys/asm.h>
.set nomips16
#ifdef _LIBC_REENTRANT
LOCALSZ= 3
FRAMESZ= (((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
RAOFF= FRAMESZ-(1*SZREG)
GPOFF= FRAMESZ-(2*SZREG)
V0OFF= FRAMESZ-(3*SZREG)
ENTRY(__syscall_error)
#ifdef __PIC__
.set noat
SETUP_GPX (AT)
.set at
#endif
PTR_SUBU sp, FRAMESZ
.set noat
SETUP_GPX64(GPOFF,AT)
.set at
#ifdef __PIC__
SAVE_GP(GPOFF)
#endif
REG_S v0, V0OFF(sp)
REG_S ra, RAOFF(sp)
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
/* We translate the system's EWOULDBLOCK error into EAGAIN.
The GNU C library always defines EWOULDBLOCK==EAGAIN.
EWOULDBLOCK_sys is the original number. */
bne v0, EWOULDBLOCK_sys, L(skip)
nop
li v0, EAGAIN
L(skip):
#endif
/* Find our per-thread errno address */
jal __errno_location
/* Store the error value. */
REG_L t0, V0OFF(sp)
sw t0, 0(v0)
/* And just kick back a -1. */
REG_L ra, RAOFF(sp)
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
li v0, -1
j ra
END(__syscall_error)
#else /* _LIBC_REENTRANT */
ENTRY(__syscall_error)
#ifdef __PIC__
SETUP_GPX (AT)
#endif
SETUP_GPX64 (t9, AT)
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
/* We translate the system's EWOULDBLOCK error into EAGAIN.
The GNU C library always defines EWOULDBLOCK==EAGAIN.
EWOULDBLOCK_sys is the original number. */
bne v0, EWOULDBLOCK_sys, L(skip)
li v0, EAGAIN
L(skip):
#endif
/* Store it in errno... */
sw v0, errno
/* And just kick back a -1. */
li v0, -1
RESTORE_GP64
j ra
END(__syscall_error)
#endif /* _LIBC_REENTRANT */
|
