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b168057a | 1 | /* Copyright (C) 1999-2015 Free Software Foundation, Inc. |
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2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
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5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
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8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
3846ef75 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
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15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
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17 | |
18 | #include <sysdep.h> | |
19 | #define _ERRNO_H | |
20 | #include <bits/errno.h> | |
21 | ||
22 | ENTRY(__syscall_error) | |
23 | #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN | |
24 | /* We translate the system's EWOULDBLOCK error into EAGAIN. | |
25 | The GNU C library always defines EWOULDBLOCK==EAGAIN. | |
26 | EWOULDBLOCK_sys is the original number. */ | |
27 | mov.l .L1, r1 | |
28 | cmp/eq r1, r0 | |
29 | bf skip | |
30 | nop | |
31 | mov.l .L2, r0 | |
32 | skip: | |
33 | #endif | |
34 | /* Store it in errno... */ | |
35 | #ifndef SHARED | |
36 | #ifndef _LIBC_REENTRANT | |
37 | mov.l .L3, r1 | |
38 | mov.l r0, @r1 | |
39 | #else | |
40 | mov.l .L3, r1 | |
41 | sts.l pr, @-r15 | |
db0a00d3 UD |
42 | cfi_adjust_cfa_offset (4) |
43 | cfi_rel_offset (pr, 0) | |
65a4de4e | 44 | mov.l r0, @-r15 |
db0a00d3 | 45 | cfi_adjust_cfa_offset (4) |
65a4de4e CLT |
46 | jsr @r1 |
47 | nop | |
3846ef75 | 48 | mov.l @r15+, r1 |
db0a00d3 | 49 | cfi_adjust_cfa_offset (-4) |
3846ef75 | 50 | lds.l @r15+, pr |
db0a00d3 | 51 | cfi_adjust_cfa_offset (-4) |
65a4de4e | 52 | cfi_restore (pr) |
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53 | mov.l r1, @r0 |
54 | #endif | |
55 | #else | |
56 | mov.l r12, @-r15 | |
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57 | cfi_adjust_cfa_offset (4) |
58 | cfi_rel_offset (r12, 0) | |
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59 | #ifndef _LIBC_REENTRANT |
60 | mov r0, r2 | |
61 | mov.l 0f, r12 | |
62 | mova 0f, r0 | |
63 | add r0, r12 | |
64 | mov.l .L3, r0 | |
65 | mov.l @(r0,r12), r1 | |
66 | mov.l r2, @r1 | |
67 | #else | |
68 | mov.l r0, @-r15 | |
db0a00d3 | 69 | cfi_adjust_cfa_offset (4) |
3846ef75 | 70 | sts.l pr, @-r15 |
db0a00d3 UD |
71 | cfi_adjust_cfa_offset (4) |
72 | cfi_rel_offset (pr, 0) | |
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73 | mov.l 0f, r12 |
74 | mova 0f, r0 | |
75 | add r0, r12 | |
76 | mov.l .L3, r1 | |
77 | mova .L3, r0 | |
78 | add r0, r1 | |
79 | jsr @r1 | |
80 | nop | |
81 | lds.l @r15+, pr | |
65a4de4e CLT |
82 | cfi_adjust_cfa_offset (-4) |
83 | cfi_restore (pr) | |
3846ef75 | 84 | mov.l @r15+, r1 |
65a4de4e | 85 | cfi_adjust_cfa_offset (-4) |
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86 | mov.l r1, @r0 |
87 | #endif | |
88 | mov.l @r15+, r12 | |
65a4de4e CLT |
89 | cfi_adjust_cfa_offset (-4) |
90 | cfi_restore (r12) | |
3846ef75 UD |
91 | #endif |
92 | /* And just kick back a -1. */ | |
93 | rts | |
94 | mov #-1, r0 | |
95 | ||
96 | .align 2 | |
97 | #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN | |
98 | .L1: .long EWOULDBLOCK_sys | |
99 | .L2: .long EAGAIN | |
100 | #endif | |
101 | #ifndef SHARED | |
102 | #ifndef _LIBC_REENTRANT | |
103 | .L3: .long C_SYMBOL_NAME(errno) | |
104 | #else | |
105 | .L3: .long C_SYMBOL_NAME(__errno_location) | |
106 | #endif | |
107 | #else | |
108 | 0: | |
109 | .long _GLOBAL_OFFSET_TABLE_ | |
110 | #ifndef _LIBC_REENTRANT | |
111 | .L3: .long C_SYMBOL_NAME(errno@GOT) | |
112 | #else | |
113 | .L3: .long C_SYMBOL_NAME(__errno_location@PLT) | |
114 | #endif | |
115 | #endif | |
116 | END(__syscall_error) |