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04277e02 | 1 | /* Copyright (C) 1997-2019 Free Software Foundation, Inc. |
b5f709a1 AS |
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 | |
ab84e3ff | 15 | License along with the GNU C Library. If not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
b5f709a1 AS |
17 | |
18 | /* System V/m68k ABI compliant context switching support. */ | |
19 | ||
20 | #ifndef _SYS_UCONTEXT_H | |
21 | #define _SYS_UCONTEXT_H 1 | |
22 | ||
23 | #include <features.h> | |
b5f709a1 | 24 | |
cfed8ece | 25 | #include <bits/types/sigset_t.h> |
0bcec532 | 26 | #include <bits/types/stack_t.h> |
c66b29f9 ZW |
27 | |
28 | ||
b5f709a1 AS |
29 | /* Type for general register. */ |
30 | typedef int greg_t; | |
31 | ||
32 | /* Number of general registers. */ | |
139904b7 JM |
33 | #define __NGREG 18 |
34 | #ifdef __USE_MISC | |
35 | # define NGREG __NGREG | |
36 | #endif | |
b5f709a1 AS |
37 | |
38 | /* Container for all general registers. */ | |
139904b7 | 39 | typedef greg_t gregset_t[__NGREG]; |
b5f709a1 | 40 | |
5df4854e | 41 | #ifdef __USE_MISC |
b5f709a1 AS |
42 | /* Number of each register is the `gregset_t' array. */ |
43 | enum | |
44 | { | |
45 | R_D0 = 0, | |
5df4854e | 46 | # define R_D0 R_D0 |
b5f709a1 | 47 | R_D1 = 1, |
5df4854e | 48 | # define R_D1 R_D1 |
b5f709a1 | 49 | R_D2 = 2, |
5df4854e | 50 | # define R_D2 R_D2 |
b5f709a1 | 51 | R_D3 = 3, |
5df4854e | 52 | # define R_D3 R_D3 |
b5f709a1 | 53 | R_D4 = 4, |
5df4854e | 54 | # define R_D4 R_D4 |
b5f709a1 | 55 | R_D5 = 5, |
5df4854e | 56 | # define R_D5 R_D5 |
b5f709a1 | 57 | R_D6 = 6, |
5df4854e | 58 | # define R_D6 R_D6 |
b5f709a1 | 59 | R_D7 = 7, |
5df4854e | 60 | # define R_D7 R_D7 |
b5f709a1 | 61 | R_A0 = 8, |
5df4854e | 62 | # define R_A0 R_A0 |
b5f709a1 | 63 | R_A1 = 9, |
5df4854e | 64 | # define R_A1 R_A1 |
b5f709a1 | 65 | R_A2 = 10, |
5df4854e | 66 | # define R_A2 R_A2 |
b5f709a1 | 67 | R_A3 = 11, |
5df4854e | 68 | # define R_A3 R_A3 |
b5f709a1 | 69 | R_A4 = 12, |
5df4854e | 70 | # define R_A4 R_A4 |
b5f709a1 | 71 | R_A5 = 13, |
5df4854e | 72 | # define R_A5 R_A5 |
b5f709a1 | 73 | R_A6 = 14, |
5df4854e | 74 | # define R_A6 R_A6 |
b5f709a1 | 75 | R_A7 = 15, |
5df4854e | 76 | # define R_A7 R_A7 |
b5f709a1 | 77 | R_SP = 15, |
5df4854e | 78 | # define R_SP R_SP |
b5f709a1 | 79 | R_PC = 16, |
5df4854e | 80 | # define R_PC R_PC |
b5f709a1 | 81 | R_PS = 17 |
5df4854e | 82 | # define R_PS R_PS |
b5f709a1 | 83 | }; |
5df4854e | 84 | #endif |
b5f709a1 | 85 | |
139904b7 JM |
86 | #ifdef __USE_MISC |
87 | # define __ctx(fld) fld | |
88 | #else | |
89 | # define __ctx(fld) __ ## fld | |
90 | #endif | |
91 | ||
b5f709a1 | 92 | /* Structure to describe FPU registers. */ |
d57cb319 | 93 | typedef struct |
b5f709a1 | 94 | { |
139904b7 JM |
95 | int __ctx(f_pcr); |
96 | int __ctx(f_psr); | |
97 | int __ctx(f_fpiaddr); | |
9c986f87 | 98 | #ifdef __mcoldfire__ |
139904b7 | 99 | int __ctx(f_fpregs)[8][2]; |
9c986f87 | 100 | #else |
139904b7 | 101 | int __ctx(f_fpregs)[8][3]; |
9c986f87 | 102 | #endif |
b5f709a1 AS |
103 | } fpregset_t; |
104 | ||
105 | /* Context to describe whole processor state. */ | |
106 | typedef struct | |
107 | { | |
139904b7 JM |
108 | int __ctx(version); |
109 | gregset_t __ctx(gregs); | |
110 | fpregset_t __ctx(fpregs); | |
b5f709a1 AS |
111 | } mcontext_t; |
112 | ||
5df4854e JM |
113 | #ifdef __USE_MISC |
114 | # define MCONTEXT_VERSION 2 | |
115 | #endif | |
b5f709a1 AS |
116 | |
117 | /* Userlevel context. */ | |
25128773 | 118 | typedef struct ucontext_t |
b5f709a1 | 119 | { |
3d452dab | 120 | unsigned long __ctx(uc_flags); |
25128773 | 121 | struct ucontext_t *uc_link; |
b5f709a1 AS |
122 | stack_t uc_stack; |
123 | mcontext_t uc_mcontext; | |
3d452dab | 124 | unsigned long __glibc_reserved1[80]; |
cfed8ece | 125 | sigset_t uc_sigmask; |
b5f709a1 AS |
126 | } ucontext_t; |
127 | ||
3d452dab JM |
128 | #undef __ctx |
129 | ||
b5f709a1 | 130 | #endif /* sys/ucontext.h */ |