projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 2b778ceb | 1 | /* Copyright (C) 1999-2021 Free Software Foundation, Inc. |
| 3846ef75 UD |
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 | |
| 41bdb6e2 AJ |
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. | |
| 3846ef75 UD |
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 |
| 59ba27a6 | 15 | License along with the GNU C Library; if not, see |
| 5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
| 3846ef75 UD |
17 | |
| 18 | #include <sysdep.h> | |
| fcb78a55 | 19 | #include <errno.h> |
| 3846ef75 UD |
20 | |
| 21 | ENTRY(__syscall_error) | |
| 22 | #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN | |
| 23 | /* We translate the system's EWOULDBLOCK error into EAGAIN. | |
| 24 | The GNU C library always defines EWOULDBLOCK==EAGAIN. | |
| 25 | EWOULDBLOCK_sys is the original number. */ | |
| 26 | mov.l .L1, r1 | |
| 27 | cmp/eq r1, r0 | |
| 28 | bf skip | |
| 29 | nop | |
| 30 | mov.l .L2, r0 | |
| 31 | skip: | |
| 32 | #endif | |
| 33 | /* Store it in errno... */ | |
| 34 | #ifndef SHARED | |
| 35 | #ifndef _LIBC_REENTRANT | |
| 36 | mov.l .L3, r1 | |
| 37 | mov.l r0, @r1 | |
| 38 | #else | |
| 39 | mov.l .L3, r1 | |
| 40 | sts.l pr, @-r15 | |
| db0a00d3 UD |
41 | cfi_adjust_cfa_offset (4) |
| 42 | cfi_rel_offset (pr, 0) | |
| 65a4de4e | 43 | mov.l r0, @-r15 |
| db0a00d3 | 44 | cfi_adjust_cfa_offset (4) |
| 65a4de4e CLT |
45 | jsr @r1 |
| 46 | nop | |
| 3846ef75 | 47 | mov.l @r15+, r1 |
| db0a00d3 | 48 | cfi_adjust_cfa_offset (-4) |
| 3846ef75 | 49 | lds.l @r15+, pr |
| db0a00d3 | 50 | cfi_adjust_cfa_offset (-4) |
| 65a4de4e | 51 | cfi_restore (pr) |
| 3846ef75 UD |
52 | mov.l r1, @r0 |
| 53 | #endif | |
| 54 | #else | |
| 55 | mov.l r12, @-r15 | |
| db0a00d3 UD |
56 | cfi_adjust_cfa_offset (4) |
| 57 | cfi_rel_offset (r12, 0) | |
| 3846ef75 UD |
58 | #ifndef _LIBC_REENTRANT |
| 59 | mov r0, r2 | |
| 60 | mov.l 0f, r12 | |
| 61 | mova 0f, r0 | |
| 62 | add r0, r12 | |
| 63 | mov.l .L3, r0 | |
| 64 | mov.l @(r0,r12), r1 | |
| 65 | mov.l r2, @r1 | |
| 66 | #else | |
| 67 | mov.l r0, @-r15 | |
| db0a00d3 | 68 | cfi_adjust_cfa_offset (4) |
| 3846ef75 | 69 | sts.l pr, @-r15 |
| db0a00d3 UD |
70 | cfi_adjust_cfa_offset (4) |
| 71 | cfi_rel_offset (pr, 0) | |
| 3846ef75 UD |
72 | mov.l 0f, r12 |
| 73 | mova 0f, r0 | |
| 74 | add r0, r12 | |
| 75 | mov.l .L3, r1 | |
| 76 | mova .L3, r0 | |
| 77 | add r0, r1 | |
| 78 | jsr @r1 | |
| 79 | nop | |
| 80 | lds.l @r15+, pr | |
| 65a4de4e CLT |
81 | cfi_adjust_cfa_offset (-4) |
| 82 | cfi_restore (pr) | |
| 3846ef75 | 83 | mov.l @r15+, r1 |
| 65a4de4e | 84 | cfi_adjust_cfa_offset (-4) |
| 3846ef75 UD |
85 | mov.l r1, @r0 |
| 86 | #endif | |
| 87 | mov.l @r15+, r12 | |
| 65a4de4e CLT |
88 | cfi_adjust_cfa_offset (-4) |
| 89 | cfi_restore (r12) | |
| 3846ef75 UD |
90 | #endif |
| 91 | /* And just kick back a -1. */ | |
| 92 | rts | |
| 93 | mov #-1, r0 | |
| 94 | ||
| 95 | .align 2 | |
| 96 | #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN | |
| 97 | .L1: .long EWOULDBLOCK_sys | |
| 98 | .L2: .long EAGAIN | |
| 99 | #endif | |
| 100 | #ifndef SHARED | |
| 101 | #ifndef _LIBC_REENTRANT | |
| 102 | .L3: .long C_SYMBOL_NAME(errno) | |
| 103 | #else | |
| 104 | .L3: .long C_SYMBOL_NAME(__errno_location) | |
| 105 | #endif | |
| 106 | #else | |
| 107 | 0: | |
| 108 | .long _GLOBAL_OFFSET_TABLE_ | |
| 109 | #ifndef _LIBC_REENTRANT | |
| 110 | .L3: .long C_SYMBOL_NAME(errno@GOT) | |
| 111 | #else | |
| 112 | .L3: .long C_SYMBOL_NAME(__errno_location@PLT) | |
| 113 | #endif | |
| 114 | #endif | |
| 115 | END(__syscall_error) |