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2b778ceb | 1 | /* Copyright (C) 2001-2021 Free Software Foundation, Inc. |
c9cf6dde 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 | |
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 | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
c9cf6dde AJ |
17 | |
18 | #ifndef _SYS_UCONTEXT_H | |
19 | #define _SYS_UCONTEXT_H 1 | |
20 | ||
21 | #include <features.h> | |
c9cf6dde | 22 | |
4fa9b3bf | 23 | #include <bits/types.h> |
cfed8ece | 24 | #include <bits/types/sigset_t.h> |
0bcec532 | 25 | #include <bits/types/stack_t.h> |
c66b29f9 | 26 | |
c9cf6dde | 27 | |
139904b7 JM |
28 | #ifdef __USE_MISC |
29 | # define __ctx(fld) fld | |
30 | #else | |
31 | # define __ctx(fld) __ ## fld | |
32 | #endif | |
33 | ||
d5e05119 | 34 | #ifdef __x86_64__ |
30ee7c7b | 35 | |
c9cf6dde | 36 | /* Type for general register. */ |
d5e05119 | 37 | __extension__ typedef long long int greg_t; |
c9cf6dde AJ |
38 | |
39 | /* Number of general registers. */ | |
139904b7 JM |
40 | #define __NGREG 23 |
41 | #ifdef __USE_MISC | |
42 | # define NGREG __NGREG | |
43 | #endif | |
c9cf6dde AJ |
44 | |
45 | /* Container for all general registers. */ | |
139904b7 | 46 | typedef greg_t gregset_t[__NGREG]; |
c9cf6dde AJ |
47 | |
48 | #ifdef __USE_GNU | |
49 | /* Number of each register in the `gregset_t' array. */ | |
50 | enum | |
51 | { | |
30ee7c7b | 52 | REG_R8 = 0, |
c9cf6dde AJ |
53 | # define REG_R8 REG_R8 |
54 | REG_R9, | |
55 | # define REG_R9 REG_R9 | |
56 | REG_R10, | |
57 | # define REG_R10 REG_R10 | |
58 | REG_R11, | |
59 | # define REG_R11 REG_R11 | |
60 | REG_R12, | |
61 | # define REG_R12 REG_R12 | |
62 | REG_R13, | |
63 | # define REG_R13 REG_R13 | |
64 | REG_R14, | |
65 | # define REG_R14 REG_R14 | |
66 | REG_R15, | |
67 | # define REG_R15 REG_R15 | |
68 | REG_RDI, | |
69 | # define REG_RDI REG_RDI | |
70 | REG_RSI, | |
71 | # define REG_RSI REG_RSI | |
72 | REG_RBP, | |
73 | # define REG_RBP REG_RBP | |
c9cf6dde AJ |
74 | REG_RBX, |
75 | # define REG_RBX REG_RBX | |
76 | REG_RDX, | |
77 | # define REG_RDX REG_RDX | |
c9cf6dde AJ |
78 | REG_RAX, |
79 | # define REG_RAX REG_RAX | |
30ee7c7b AJ |
80 | REG_RCX, |
81 | # define REG_RCX REG_RCX | |
82 | REG_RSP, | |
83 | # define REG_RSP REG_RSP | |
84 | REG_RIP, | |
85 | # define REG_RIP REG_RIP | |
86 | REG_EFL, | |
87 | # define REG_EFL REG_EFL | |
46a1b875 AJ |
88 | REG_CSGSFS, /* Actually short cs, gs, fs, __pad0. */ |
89 | # define REG_CSGSFS REG_CSGSFS | |
30ee7c7b AJ |
90 | REG_ERR, |
91 | # define REG_ERR REG_ERR | |
09b4d75f | 92 | REG_TRAPNO, |
30ee7c7b | 93 | # define REG_TRAPNO REG_TRAPNO |
09b4d75f AJ |
94 | REG_OLDMASK, |
95 | # define REG_OLDMASK REG_OLDMASK | |
96 | REG_CR2 | |
97 | # define REG_CR2 REG_CR2 | |
30ee7c7b AJ |
98 | }; |
99 | #endif | |
100 | ||
101 | struct _libc_fpxreg | |
102 | { | |
139904b7 JM |
103 | unsigned short int __ctx(significand)[4]; |
104 | unsigned short int __ctx(exponent); | |
fd9f30f6 | 105 | unsigned short int __glibc_reserved1[3]; |
30ee7c7b AJ |
106 | }; |
107 | ||
108 | struct _libc_xmmreg | |
109 | { | |
487549c4 | 110 | __uint32_t __ctx(element)[4]; |
30ee7c7b AJ |
111 | }; |
112 | ||
113 | struct _libc_fpstate | |
114 | { | |
115 | /* 64-bit FXSAVE format. */ | |
139904b7 JM |
116 | __uint16_t __ctx(cwd); |
117 | __uint16_t __ctx(swd); | |
118 | __uint16_t __ctx(ftw); | |
119 | __uint16_t __ctx(fop); | |
120 | __uint64_t __ctx(rip); | |
121 | __uint64_t __ctx(rdp); | |
122 | __uint32_t __ctx(mxcsr); | |
123 | __uint32_t __ctx(mxcr_mask); | |
30ee7c7b AJ |
124 | struct _libc_fpxreg _st[8]; |
125 | struct _libc_xmmreg _xmm[16]; | |
fd9f30f6 | 126 | __uint32_t __glibc_reserved1[24]; |
30ee7c7b AJ |
127 | }; |
128 | ||
129 | /* Structure to describe FPU registers. */ | |
130 | typedef struct _libc_fpstate *fpregset_t; | |
131 | ||
132 | /* Context to describe whole processor state. */ | |
133 | typedef struct | |
134 | { | |
139904b7 | 135 | gregset_t __ctx(gregs); |
30ee7c7b | 136 | /* Note that fpregs is a pointer. */ |
139904b7 | 137 | fpregset_t __ctx(fpregs); |
d5e05119 | 138 | __extension__ unsigned long long __reserved1 [8]; |
30ee7c7b AJ |
139 | } mcontext_t; |
140 | ||
141 | /* Userlevel context. */ | |
25128773 | 142 | typedef struct ucontext_t |
30ee7c7b | 143 | { |
3d452dab | 144 | unsigned long int __ctx(uc_flags); |
25128773 | 145 | struct ucontext_t *uc_link; |
30ee7c7b AJ |
146 | stack_t uc_stack; |
147 | mcontext_t uc_mcontext; | |
cfed8ece | 148 | sigset_t uc_sigmask; |
30ee7c7b | 149 | struct _libc_fpstate __fpregs_mem; |
25123a1c | 150 | __extension__ unsigned long long int __ssp[4]; |
30ee7c7b AJ |
151 | } ucontext_t; |
152 | ||
d5e05119 | 153 | #else /* !__x86_64__ */ |
30ee7c7b AJ |
154 | |
155 | /* Type for general register. */ | |
156 | typedef int greg_t; | |
157 | ||
158 | /* Number of general registers. */ | |
139904b7 JM |
159 | #define __NGREG 19 |
160 | #ifdef __USE_MISC | |
161 | # define NGREG __NGREG | |
162 | #endif | |
30ee7c7b AJ |
163 | |
164 | /* Container for all general registers. */ | |
139904b7 | 165 | typedef greg_t gregset_t[__NGREG]; |
30ee7c7b AJ |
166 | |
167 | #ifdef __USE_GNU | |
168 | /* Number of each register is the `gregset_t' array. */ | |
169 | enum | |
170 | { | |
171 | REG_GS = 0, | |
172 | # define REG_GS REG_GS | |
173 | REG_FS, | |
174 | # define REG_FS REG_FS | |
175 | REG_ES, | |
176 | # define REG_ES REG_ES | |
177 | REG_DS, | |
178 | # define REG_DS REG_DS | |
179 | REG_EDI, | |
180 | # define REG_EDI REG_EDI | |
181 | REG_ESI, | |
182 | # define REG_ESI REG_ESI | |
183 | REG_EBP, | |
184 | # define REG_EBP REG_EBP | |
185 | REG_ESP, | |
186 | # define REG_ESP REG_ESP | |
187 | REG_EBX, | |
188 | # define REG_EBX REG_EBX | |
189 | REG_EDX, | |
190 | # define REG_EDX REG_EDX | |
191 | REG_ECX, | |
192 | # define REG_ECX REG_ECX | |
193 | REG_EAX, | |
194 | # define REG_EAX REG_EAX | |
c9cf6dde AJ |
195 | REG_TRAPNO, |
196 | # define REG_TRAPNO REG_TRAPNO | |
197 | REG_ERR, | |
198 | # define REG_ERR REG_ERR | |
30ee7c7b AJ |
199 | REG_EIP, |
200 | # define REG_EIP REG_EIP | |
c9cf6dde AJ |
201 | REG_CS, |
202 | # define REG_CS REG_CS | |
203 | REG_EFL, | |
204 | # define REG_EFL REG_EFL | |
30ee7c7b AJ |
205 | REG_UESP, |
206 | # define REG_UESP REG_UESP | |
c9cf6dde AJ |
207 | REG_SS |
208 | # define REG_SS REG_SS | |
209 | }; | |
210 | #endif | |
211 | ||
212 | /* Definitions taken from the kernel headers. */ | |
213 | struct _libc_fpreg | |
214 | { | |
139904b7 JM |
215 | unsigned short int __ctx(significand)[4]; |
216 | unsigned short int __ctx(exponent); | |
c9cf6dde AJ |
217 | }; |
218 | ||
c9cf6dde AJ |
219 | struct _libc_fpstate |
220 | { | |
139904b7 JM |
221 | unsigned long int __ctx(cw); |
222 | unsigned long int __ctx(sw); | |
223 | unsigned long int __ctx(tag); | |
224 | unsigned long int __ctx(ipoff); | |
225 | unsigned long int __ctx(cssel); | |
226 | unsigned long int __ctx(dataoff); | |
227 | unsigned long int __ctx(datasel); | |
30ee7c7b | 228 | struct _libc_fpreg _st[8]; |
139904b7 | 229 | unsigned long int __ctx(status); |
c9cf6dde AJ |
230 | }; |
231 | ||
232 | /* Structure to describe FPU registers. */ | |
30ee7c7b | 233 | typedef struct _libc_fpstate *fpregset_t; |
c9cf6dde AJ |
234 | |
235 | /* Context to describe whole processor state. */ | |
236 | typedef struct | |
237 | { | |
139904b7 | 238 | gregset_t __ctx(gregs); |
30ee7c7b AJ |
239 | /* Due to Linux's history we have to use a pointer here. The SysV/i386 |
240 | ABI requires a struct with the values. */ | |
139904b7 JM |
241 | fpregset_t __ctx(fpregs); |
242 | unsigned long int __ctx(oldmask); | |
243 | unsigned long int __ctx(cr2); | |
c9cf6dde AJ |
244 | } mcontext_t; |
245 | ||
246 | /* Userlevel context. */ | |
25128773 | 247 | typedef struct ucontext_t |
c9cf6dde | 248 | { |
3d452dab | 249 | unsigned long int __ctx(uc_flags); |
25128773 | 250 | struct ucontext_t *uc_link; |
c9cf6dde AJ |
251 | stack_t uc_stack; |
252 | mcontext_t uc_mcontext; | |
cfed8ece | 253 | sigset_t uc_sigmask; |
c9cf6dde | 254 | struct _libc_fpstate __fpregs_mem; |
25123a1c | 255 | unsigned long int __ssp[4]; |
c9cf6dde AJ |
256 | } ucontext_t; |
257 | ||
d5e05119 | 258 | #endif /* !__x86_64__ */ |
30ee7c7b | 259 | |
139904b7 JM |
260 | #undef __ctx |
261 | ||
c9cf6dde | 262 | #endif /* sys/ucontext.h */ |