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| 1 | /* Copyright (C) 1997-2024 Free Software Foundation, Inc. |
|---|---|
| 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 |
| 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. |
| 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 |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library. If not, see |
| 16 | <https://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | /* Don't rely on this, the interface is currently messed up and may need to |
| 19 | be broken to be fixed. */ |
| 20 | #ifndef _SYS_UCONTEXT_H |
| 21 | #define _SYS_UCONTEXT_H 1 |
| 22 | |
| 23 | #include <features.h> |
| 24 | |
| 25 | #include <bits/types/sigset_t.h> |
| 26 | #include <bits/types/stack_t.h> |
| 27 | |
| 28 | |
| 29 | #ifdef __USE_MISC |
| 30 | # define __ctx(fld) fld |
| 31 | #else |
| 32 | # define __ctx(fld) __ ## fld |
| 33 | #endif |
| 34 | |
| 35 | #ifdef __USE_MISC |
| 36 | /* Type for general register. */ |
| 37 | typedef unsigned long int greg_t; |
| 38 | |
| 39 | /* Number of general registers. */ |
| 40 | # define NGREG 80 |
| 41 | # define NFPREG 32 |
| 42 | |
| 43 | /* Container for all general registers. */ |
| 44 | typedef struct gregset |
| 45 | { |
| 46 | greg_t g_regs[32]; |
| 47 | greg_t sr_regs[8]; |
| 48 | greg_t cr_regs[24]; |
| 49 | greg_t g_pad[16]; |
| 50 | } gregset_t; |
| 51 | |
| 52 | /* Container for all FPU registers. */ |
| 53 | typedef struct |
| 54 | { |
| 55 | double fp_dregs[32]; |
| 56 | } fpregset_t; |
| 57 | #endif |
| 58 | |
| 59 | /* Context to describe whole processor state. */ |
| 60 | typedef struct |
| 61 | { |
| 62 | unsigned long int __ctx(sc_flags); |
| 63 | unsigned long int __ctx(sc_gr)[32]; |
| 64 | unsigned long long int __ctx(sc_fr)[32]; |
| 65 | unsigned long int __ctx(sc_iasq)[2]; |
| 66 | unsigned long int __ctx(sc_iaoq)[2]; |
| 67 | unsigned long int __ctx(sc_sar); |
| 68 | } mcontext_t; |
| 69 | |
| 70 | /* Userlevel context. */ |
| 71 | typedef struct ucontext_t |
| 72 | { |
| 73 | unsigned long int __ctx(uc_flags); |
| 74 | struct ucontext_t *uc_link; |
| 75 | stack_t uc_stack; |
| 76 | mcontext_t uc_mcontext; |
| 77 | sigset_t uc_sigmask; |
| 78 | } ucontext_t; |
| 79 | |
| 80 | #undef __ctx |
| 81 | |
| 82 | #endif /* sys/ucontext.h */ |
| 83 |
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