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
|
/* Copyright (C) 2001-2019 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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 <tls.h>
/* The following code is only used in the shared library when we
compile the reentrant version. Otherwise each system call defines
each own version. */
/* The syscall stubs jump here when they detect an error. */
#undef CALL_MCOUNT
#define CALL_MCOUNT
.text
ENTRY(__syscall_error)
#ifndef PIC
# if IS_IN (libc)
# define SYSCALL_ERROR_ERRNO __libc_errno
# else
# define SYSCALL_ERROR_ERRNO errno
# endif
basr %r1,0
0: lg %r1,1f-0b(%r1)
ear %r3,%a0
sllg %r3,%r3,32
ear %r3,%a1
lcr %r2,%r2
st %r2,0(%r1,%r3)
lghi %r2,-1
br %r14
1: .quad SYSCALL_ERROR_ERRNO@ntpoff
#else
# if RTLD_PRIVATE_ERRNO
larl %r1,rtld_errno
lcr %r2,%r2
st %r2,0(%r1)
lghi %r2,-1
br %r14
# else
# if IS_IN (libc)
# define SYSCALL_ERROR_ERRNO __libc_errno
# else
# define SYSCALL_ERROR_ERRNO errno
# endif
larl %r1,_GLOBAL_OFFSET_TABLE_
lg %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1)
ear %r3,%a0
sllg %r3,%r3,32
ear %r3,%a1
lcr %r2,%r2
st %r2,0(%r1,%r3)
lghi %r2,-1
br %r14
# endif
#endif
END (__syscall_error)
|
