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| 1 | /* ucontext_t definition, Nios II version. |
|---|---|
| 2 | Copyright (C) 2015-2024 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | /* System V/Nios II ABI compliant context switching support. */ |
| 20 | |
| 21 | #ifndef _SYS_UCONTEXT_H |
| 22 | #define _SYS_UCONTEXT_H 1 |
| 23 | |
| 24 | #include <features.h> |
| 25 | |
| 26 | #include <bits/types/sigset_t.h> |
| 27 | #include <bits/types/stack_t.h> |
| 28 | |
| 29 | |
| 30 | /* These definitions must be in sync with the kernel. */ |
| 31 | |
| 32 | #ifdef __USE_MISC |
| 33 | # define MCONTEXT_VERSION 2 |
| 34 | #endif |
| 35 | |
| 36 | #ifdef __USE_MISC |
| 37 | # define __ctx(fld) fld |
| 38 | #else |
| 39 | # define __ctx(fld) __ ## fld |
| 40 | #endif |
| 41 | |
| 42 | /* Context to describe whole processor state. */ |
| 43 | typedef struct |
| 44 | { |
| 45 | int __ctx(version); |
| 46 | unsigned long __ctx(regs)[32]; |
| 47 | } mcontext_t; |
| 48 | |
| 49 | /* Userlevel context. */ |
| 50 | typedef struct ucontext_t |
| 51 | { |
| 52 | unsigned long __ctx(uc_flags); |
| 53 | struct ucontext_t *uc_link; |
| 54 | stack_t uc_stack; |
| 55 | mcontext_t uc_mcontext; |
| 56 | sigset_t uc_sigmask; |
| 57 | } ucontext_t; |
| 58 | |
| 59 | #undef __ctx |
| 60 | |
| 61 | #endif /* sys/ucontext.h */ |
| 62 |
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