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b168057a | 1 | /* Copyright (C) 2001-2015 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 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
c9cf6dde AJ |
17 | |
18 | #ifndef _SYS_UCONTEXT_H | |
19 | #define _SYS_UCONTEXT_H 1 | |
20 | ||
21 | #include <features.h> | |
22 | #include <signal.h> | |
23 | ||
24 | /* We need the signal context definitions even if they are not used | |
25 | included in <signal.h>. */ | |
26 | #include <bits/sigcontext.h> | |
27 | ||
d5e05119 | 28 | #ifdef __x86_64__ |
30ee7c7b | 29 | |
c9cf6dde | 30 | /* Type for general register. */ |
d5e05119 | 31 | __extension__ typedef long long int greg_t; |
c9cf6dde AJ |
32 | |
33 | /* Number of general registers. */ | |
09b4d75f | 34 | #define NGREG 23 |
c9cf6dde AJ |
35 | |
36 | /* Container for all general registers. */ | |
37 | typedef greg_t gregset_t[NGREG]; | |
38 | ||
39 | #ifdef __USE_GNU | |
40 | /* Number of each register in the `gregset_t' array. */ | |
41 | enum | |
42 | { | |
30ee7c7b | 43 | REG_R8 = 0, |
c9cf6dde AJ |
44 | # define REG_R8 REG_R8 |
45 | REG_R9, | |
46 | # define REG_R9 REG_R9 | |
47 | REG_R10, | |
48 | # define REG_R10 REG_R10 | |
49 | REG_R11, | |
50 | # define REG_R11 REG_R11 | |
51 | REG_R12, | |
52 | # define REG_R12 REG_R12 | |
53 | REG_R13, | |
54 | # define REG_R13 REG_R13 | |
55 | REG_R14, | |
56 | # define REG_R14 REG_R14 | |
57 | REG_R15, | |
58 | # define REG_R15 REG_R15 | |
59 | REG_RDI, | |
60 | # define REG_RDI REG_RDI | |
61 | REG_RSI, | |
62 | # define REG_RSI REG_RSI | |
63 | REG_RBP, | |
64 | # define REG_RBP REG_RBP | |
c9cf6dde AJ |
65 | REG_RBX, |
66 | # define REG_RBX REG_RBX | |
67 | REG_RDX, | |
68 | # define REG_RDX REG_RDX | |
c9cf6dde AJ |
69 | REG_RAX, |
70 | # define REG_RAX REG_RAX | |
30ee7c7b AJ |
71 | REG_RCX, |
72 | # define REG_RCX REG_RCX | |
73 | REG_RSP, | |
74 | # define REG_RSP REG_RSP | |
75 | REG_RIP, | |
76 | # define REG_RIP REG_RIP | |
77 | REG_EFL, | |
78 | # define REG_EFL REG_EFL | |
46a1b875 AJ |
79 | REG_CSGSFS, /* Actually short cs, gs, fs, __pad0. */ |
80 | # define REG_CSGSFS REG_CSGSFS | |
30ee7c7b AJ |
81 | REG_ERR, |
82 | # define REG_ERR REG_ERR | |
09b4d75f | 83 | REG_TRAPNO, |
30ee7c7b | 84 | # define REG_TRAPNO REG_TRAPNO |
09b4d75f AJ |
85 | REG_OLDMASK, |
86 | # define REG_OLDMASK REG_OLDMASK | |
87 | REG_CR2 | |
88 | # define REG_CR2 REG_CR2 | |
30ee7c7b AJ |
89 | }; |
90 | #endif | |
91 | ||
92 | struct _libc_fpxreg | |
93 | { | |
94 | unsigned short int significand[4]; | |
95 | unsigned short int exponent; | |
96 | unsigned short int padding[3]; | |
97 | }; | |
98 | ||
99 | struct _libc_xmmreg | |
100 | { | |
101 | __uint32_t element[4]; | |
102 | }; | |
103 | ||
104 | struct _libc_fpstate | |
105 | { | |
106 | /* 64-bit FXSAVE format. */ | |
107 | __uint16_t cwd; | |
108 | __uint16_t swd; | |
109 | __uint16_t ftw; | |
110 | __uint16_t fop; | |
111 | __uint64_t rip; | |
112 | __uint64_t rdp; | |
113 | __uint32_t mxcsr; | |
114 | __uint32_t mxcr_mask; | |
115 | struct _libc_fpxreg _st[8]; | |
116 | struct _libc_xmmreg _xmm[16]; | |
117 | __uint32_t padding[24]; | |
118 | }; | |
119 | ||
120 | /* Structure to describe FPU registers. */ | |
121 | typedef struct _libc_fpstate *fpregset_t; | |
122 | ||
123 | /* Context to describe whole processor state. */ | |
124 | typedef struct | |
125 | { | |
126 | gregset_t gregs; | |
127 | /* Note that fpregs is a pointer. */ | |
128 | fpregset_t fpregs; | |
d5e05119 | 129 | __extension__ unsigned long long __reserved1 [8]; |
30ee7c7b AJ |
130 | } mcontext_t; |
131 | ||
132 | /* Userlevel context. */ | |
133 | typedef struct ucontext | |
134 | { | |
135 | unsigned long int uc_flags; | |
136 | struct ucontext *uc_link; | |
137 | stack_t uc_stack; | |
138 | mcontext_t uc_mcontext; | |
139 | __sigset_t uc_sigmask; | |
140 | struct _libc_fpstate __fpregs_mem; | |
141 | } ucontext_t; | |
142 | ||
d5e05119 | 143 | #else /* !__x86_64__ */ |
30ee7c7b AJ |
144 | |
145 | /* Type for general register. */ | |
146 | typedef int greg_t; | |
147 | ||
148 | /* Number of general registers. */ | |
149 | #define NGREG 19 | |
150 | ||
151 | /* Container for all general registers. */ | |
152 | typedef greg_t gregset_t[NGREG]; | |
153 | ||
154 | #ifdef __USE_GNU | |
155 | /* Number of each register is the `gregset_t' array. */ | |
156 | enum | |
157 | { | |
158 | REG_GS = 0, | |
159 | # define REG_GS REG_GS | |
160 | REG_FS, | |
161 | # define REG_FS REG_FS | |
162 | REG_ES, | |
163 | # define REG_ES REG_ES | |
164 | REG_DS, | |
165 | # define REG_DS REG_DS | |
166 | REG_EDI, | |
167 | # define REG_EDI REG_EDI | |
168 | REG_ESI, | |
169 | # define REG_ESI REG_ESI | |
170 | REG_EBP, | |
171 | # define REG_EBP REG_EBP | |
172 | REG_ESP, | |
173 | # define REG_ESP REG_ESP | |
174 | REG_EBX, | |
175 | # define REG_EBX REG_EBX | |
176 | REG_EDX, | |
177 | # define REG_EDX REG_EDX | |
178 | REG_ECX, | |
179 | # define REG_ECX REG_ECX | |
180 | REG_EAX, | |
181 | # define REG_EAX REG_EAX | |
c9cf6dde AJ |
182 | REG_TRAPNO, |
183 | # define REG_TRAPNO REG_TRAPNO | |
184 | REG_ERR, | |
185 | # define REG_ERR REG_ERR | |
30ee7c7b AJ |
186 | REG_EIP, |
187 | # define REG_EIP REG_EIP | |
c9cf6dde AJ |
188 | REG_CS, |
189 | # define REG_CS REG_CS | |
190 | REG_EFL, | |
191 | # define REG_EFL REG_EFL | |
30ee7c7b AJ |
192 | REG_UESP, |
193 | # define REG_UESP REG_UESP | |
c9cf6dde AJ |
194 | REG_SS |
195 | # define REG_SS REG_SS | |
196 | }; | |
197 | #endif | |
198 | ||
199 | /* Definitions taken from the kernel headers. */ | |
200 | struct _libc_fpreg | |
201 | { | |
202 | unsigned short int significand[4]; | |
203 | unsigned short int exponent; | |
204 | }; | |
205 | ||
c9cf6dde AJ |
206 | struct _libc_fpstate |
207 | { | |
c9cf6dde AJ |
208 | unsigned long int cw; |
209 | unsigned long int sw; | |
210 | unsigned long int tag; | |
211 | unsigned long int ipoff; | |
212 | unsigned long int cssel; | |
213 | unsigned long int dataoff; | |
214 | unsigned long int datasel; | |
30ee7c7b AJ |
215 | struct _libc_fpreg _st[8]; |
216 | unsigned long int status; | |
c9cf6dde AJ |
217 | }; |
218 | ||
219 | /* Structure to describe FPU registers. */ | |
30ee7c7b | 220 | typedef struct _libc_fpstate *fpregset_t; |
c9cf6dde AJ |
221 | |
222 | /* Context to describe whole processor state. */ | |
223 | typedef struct | |
224 | { | |
225 | gregset_t gregs; | |
30ee7c7b AJ |
226 | /* Due to Linux's history we have to use a pointer here. The SysV/i386 |
227 | ABI requires a struct with the values. */ | |
c9cf6dde AJ |
228 | fpregset_t fpregs; |
229 | unsigned long int oldmask; | |
230 | unsigned long int cr2; | |
231 | } mcontext_t; | |
232 | ||
233 | /* Userlevel context. */ | |
234 | typedef struct ucontext | |
235 | { | |
236 | unsigned long int uc_flags; | |
237 | struct ucontext *uc_link; | |
238 | stack_t uc_stack; | |
239 | mcontext_t uc_mcontext; | |
240 | __sigset_t uc_sigmask; | |
241 | struct _libc_fpstate __fpregs_mem; | |
242 | } ucontext_t; | |
243 | ||
d5e05119 | 244 | #endif /* !__x86_64__ */ |
30ee7c7b | 245 | |
c9cf6dde | 246 | #endif /* sys/ucontext.h */ |