Commit | Line | Data |
---|---|---|
77ef50a5 VN |
1 | #ifndef ASM_X86__SIGCONTEXT_H |
2 | #define ASM_X86__SIGCONTEXT_H | |
77129c5e TG |
3 | |
4 | #include <linux/compiler.h> | |
5 | #include <asm/types.h> | |
6 | ||
7 | #ifdef __i386__ | |
8 | /* | |
9 | * As documented in the iBCS2 standard.. | |
10 | * | |
11 | * The first part of "struct _fpstate" is just the normal i387 | |
12 | * hardware setup, the extra "status" word is used to save the | |
13 | * coprocessor status word before entering the handler. | |
14 | * | |
15 | * Pentium III FXSR, SSE support | |
16 | * Gareth Hughes <gareth@valinux.com>, May 2000 | |
17 | * | |
18 | * The FPU state data structure has had to grow to accommodate the | |
19 | * extended FPU state required by the Streaming SIMD Extensions. | |
20 | * There is no documented standard to accomplish this at the moment. | |
21 | */ | |
22 | struct _fpreg { | |
23 | unsigned short significand[4]; | |
24 | unsigned short exponent; | |
25 | }; | |
26 | ||
27 | struct _fpxreg { | |
28 | unsigned short significand[4]; | |
29 | unsigned short exponent; | |
30 | unsigned short padding[3]; | |
31 | }; | |
32 | ||
33 | struct _xmmreg { | |
34 | unsigned long element[4]; | |
35 | }; | |
36 | ||
37 | struct _fpstate { | |
38 | /* Regular FPU environment */ | |
39 | unsigned long cw; | |
40 | unsigned long sw; | |
41 | unsigned long tag; | |
42 | unsigned long ipoff; | |
43 | unsigned long cssel; | |
44 | unsigned long dataoff; | |
45 | unsigned long datasel; | |
46 | struct _fpreg _st[8]; | |
47 | unsigned short status; | |
48 | unsigned short magic; /* 0xffff = regular FPU data only */ | |
49 | ||
50 | /* FXSR FPU environment */ | |
51 | unsigned long _fxsr_env[6]; /* FXSR FPU env is ignored */ | |
52 | unsigned long mxcsr; | |
53 | unsigned long reserved; | |
54 | struct _fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */ | |
55 | struct _xmmreg _xmm[8]; | |
56 | unsigned long padding[56]; | |
57 | }; | |
58 | ||
59 | #define X86_FXSR_MAGIC 0x0000 | |
60 | ||
1cdde191 | 61 | #ifdef __KERNEL__ |
77129c5e TG |
62 | struct sigcontext { |
63 | unsigned short gs, __gsh; | |
64 | unsigned short fs, __fsh; | |
65 | unsigned short es, __esh; | |
66 | unsigned short ds, __dsh; | |
742fa54a PA |
67 | unsigned long di; |
68 | unsigned long si; | |
69 | unsigned long bp; | |
70 | unsigned long sp; | |
71 | unsigned long bx; | |
72 | unsigned long dx; | |
73 | unsigned long cx; | |
74 | unsigned long ax; | |
77129c5e TG |
75 | unsigned long trapno; |
76 | unsigned long err; | |
742fa54a | 77 | unsigned long ip; |
77129c5e | 78 | unsigned short cs, __csh; |
742fa54a PA |
79 | unsigned long flags; |
80 | unsigned long sp_at_signal; | |
77129c5e | 81 | unsigned short ss, __ssh; |
af1fec15 | 82 | struct _fpstate __user *fpstate; |
77129c5e TG |
83 | unsigned long oldmask; |
84 | unsigned long cr2; | |
85 | }; | |
1cdde191 IM |
86 | #else /* __KERNEL__ */ |
87 | /* | |
88 | * User-space might still rely on the old definition: | |
89 | */ | |
90 | struct sigcontext { | |
91 | unsigned short gs, __gsh; | |
92 | unsigned short fs, __fsh; | |
93 | unsigned short es, __esh; | |
94 | unsigned short ds, __dsh; | |
95 | unsigned long edi; | |
96 | unsigned long esi; | |
97 | unsigned long ebp; | |
98 | unsigned long esp; | |
99 | unsigned long ebx; | |
100 | unsigned long edx; | |
101 | unsigned long ecx; | |
102 | unsigned long eax; | |
103 | unsigned long trapno; | |
104 | unsigned long err; | |
105 | unsigned long eip; | |
106 | unsigned short cs, __csh; | |
107 | unsigned long eflags; | |
108 | unsigned long esp_at_signal; | |
109 | unsigned short ss, __ssh; | |
af1fec15 | 110 | struct _fpstate __user *fpstate; |
1cdde191 IM |
111 | unsigned long oldmask; |
112 | unsigned long cr2; | |
113 | }; | |
114 | #endif /* !__KERNEL__ */ | |
77129c5e TG |
115 | |
116 | #else /* __i386__ */ | |
117 | ||
118 | /* FXSAVE frame */ | |
119 | /* Note: reserved1/2 may someday contain valuable data. Always save/restore | |
120 | them when you change signal frames. */ | |
121 | struct _fpstate { | |
122 | __u16 cwd; | |
123 | __u16 swd; | |
af1fec15 JP |
124 | __u16 twd; /* Note this is not the same as the |
125 | 32bit/x87/FSAVE twd */ | |
77129c5e TG |
126 | __u16 fop; |
127 | __u64 rip; | |
128 | __u64 rdp; | |
129 | __u32 mxcsr; | |
130 | __u32 mxcsr_mask; | |
131 | __u32 st_space[32]; /* 8*16 bytes for each FP-reg */ | |
132 | __u32 xmm_space[64]; /* 16*16 bytes for each XMM-reg */ | |
133 | __u32 reserved2[24]; | |
134 | }; | |
135 | ||
1cdde191 | 136 | #ifdef __KERNEL__ |
77129c5e TG |
137 | struct sigcontext { |
138 | unsigned long r8; | |
139 | unsigned long r9; | |
140 | unsigned long r10; | |
141 | unsigned long r11; | |
142 | unsigned long r12; | |
143 | unsigned long r13; | |
144 | unsigned long r14; | |
145 | unsigned long r15; | |
742fa54a PA |
146 | unsigned long di; |
147 | unsigned long si; | |
148 | unsigned long bp; | |
149 | unsigned long bx; | |
150 | unsigned long dx; | |
151 | unsigned long ax; | |
152 | unsigned long cx; | |
153 | unsigned long sp; | |
154 | unsigned long ip; | |
155 | unsigned long flags; | |
77129c5e TG |
156 | unsigned short cs; |
157 | unsigned short gs; | |
158 | unsigned short fs; | |
159 | unsigned short __pad0; | |
160 | unsigned long err; | |
161 | unsigned long trapno; | |
162 | unsigned long oldmask; | |
163 | unsigned long cr2; | |
164 | struct _fpstate __user *fpstate; /* zero when no FPU context */ | |
165 | unsigned long reserved1[8]; | |
166 | }; | |
1cdde191 IM |
167 | #else /* __KERNEL__ */ |
168 | /* | |
169 | * User-space might still rely on the old definition: | |
170 | */ | |
171 | struct sigcontext { | |
172 | unsigned long r8; | |
173 | unsigned long r9; | |
174 | unsigned long r10; | |
175 | unsigned long r11; | |
176 | unsigned long r12; | |
177 | unsigned long r13; | |
178 | unsigned long r14; | |
179 | unsigned long r15; | |
180 | unsigned long rdi; | |
181 | unsigned long rsi; | |
182 | unsigned long rbp; | |
183 | unsigned long rbx; | |
184 | unsigned long rdx; | |
185 | unsigned long rax; | |
186 | unsigned long rcx; | |
187 | unsigned long rsp; | |
188 | unsigned long rip; | |
189 | unsigned long eflags; /* RFLAGS */ | |
190 | unsigned short cs; | |
191 | unsigned short gs; | |
192 | unsigned short fs; | |
193 | unsigned short __pad0; | |
194 | unsigned long err; | |
195 | unsigned long trapno; | |
196 | unsigned long oldmask; | |
197 | unsigned long cr2; | |
198 | struct _fpstate __user *fpstate; /* zero when no FPU context */ | |
199 | unsigned long reserved1[8]; | |
200 | }; | |
201 | #endif /* !__KERNEL__ */ | |
77129c5e TG |
202 | |
203 | #endif /* !__i386__ */ | |
204 | ||
77ef50a5 | 205 | #endif /* ASM_X86__SIGCONTEXT_H */ |