projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 2b778ceb | 1 | /* Copyright (C) 2001-2021 Free Software Foundation, Inc. |
| 847b055c AJ |
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. | |
| 847b055c AJ |
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. |
| 847b055c | 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/>. */ |
| 847b055c AJ |
17 | |
| 18 | #include <sysdep.h> | |
| f8ea3acb | 19 | #include <tls.h> |
| 847b055c | 20 | |
| 847b055c AJ |
21 | |
| 22 | /* The following code is only used in the shared library when we | |
| 23 | compile the reentrant version. Otherwise each system call defines | |
| 24 | each own version. */ | |
| 25 | ||
| 26 | /* The syscall stubs jump here when they detect an error. */ | |
| 27 | ||
| 28 | #undef CALL_MCOUNT | |
| 29 | #define CALL_MCOUNT | |
| 30 | ||
| e6ebd2e4 | 31 | .text |
| 847b055c AJ |
32 | ENTRY(__syscall_error) |
| 33 | #ifndef PIC | |
| 4f41c682 | 34 | # if IS_IN (libc) |
| d063d164 UD |
35 | # define SYSCALL_ERROR_ERRNO __libc_errno |
| 36 | # else | |
| 37 | # define SYSCALL_ERROR_ERRNO errno | |
| 38 | # endif | |
| e6ebd2e4 UD |
39 | basr %r1,0 |
| 40 | 0: lg %r1,1f-0b(%r1) | |
| 41 | ear %r3,%a0 | |
| 42 | sllg %r3,%r3,32 | |
| 43 | ear %r3,%a1 | |
| 44 | lcr %r2,%r2 | |
| 45 | st %r2,0(%r1,%r3) | |
| 46 | lghi %r2,-1 | |
| 47 | br %r14 | |
| 48 | 1: .quad SYSCALL_ERROR_ERRNO@ntpoff | |
| 847b055c | 49 | #else |
| e6ebd2e4 | 50 | # if RTLD_PRIVATE_ERRNO |
| 96c82b3f | 51 | larl %r1,rtld_errno |
| e6ebd2e4 UD |
52 | lcr %r2,%r2 |
| 53 | st %r2,0(%r1) | |
| 54 | lghi %r2,-1 | |
| 55 | br %r14 | |
| d063d164 | 56 | # else |
| 4f41c682 | 57 | # if IS_IN (libc) |
| e6ebd2e4 UD |
58 | # define SYSCALL_ERROR_ERRNO __libc_errno |
| 59 | # else | |
| 60 | # define SYSCALL_ERROR_ERRNO errno | |
| 61 | # endif | |
| 62 | larl %r1,_GLOBAL_OFFSET_TABLE_ | |
| 63 | lg %r1,SYSCALL_ERROR_ERRNO@gotntpoff(%r1) | |
| 64 | ear %r3,%a0 | |
| 65 | sllg %r3,%r3,32 | |
| 66 | ear %r3,%a1 | |
| 67 | lcr %r2,%r2 | |
| 68 | st %r2,0(%r1,%r3) | |
| 69 | lghi %r2,-1 | |
| 70 | br %r14 | |
| e6ebd2e4 | 71 | # endif |
| 847b055c AJ |
72 | #endif |
| 73 | ||
| 74 | END (__syscall_error) |