1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _SYS_USER_H_
30 #define _SYS_USER_H_
31 
32 #include <sys/cdefs.h>
33 #include <stddef.h> /* For size_t. */
34 #include <stdint.h>
35 
36 __BEGIN_DECLS
37 
38 #define PAGE_SIZE 4096
39 #define PAGE_MASK (~(PAGE_SIZE - 1))
40 
41 #if defined(__i386__)
42 
43 struct user_fpregs_struct {
44   long cwd;
45   long swd;
46   long twd;
47   long fip;
48   long fcs;
49   long foo;
50   long fos;
51   long st_space[20];
52 };
53 struct user_fpxregs_struct {
54   unsigned short cwd;
55   unsigned short swd;
56   unsigned short twd;
57   unsigned short fop;
58   long fip;
59   long fcs;
60   long foo;
61   long fos;
62   long mxcsr;
63   long reserved;
64   long st_space[32];
65   long xmm_space[32];
66   long padding[56];
67 };
68 struct user_regs_struct {
69   long ebx;
70   long ecx;
71   long edx;
72   long esi;
73   long edi;
74   long ebp;
75   long eax;
76   long xds;
77   long xes;
78   long xfs;
79   long xgs;
80   long orig_eax;
81   long eip;
82   long xcs;
83   long eflags;
84   long esp;
85   long xss;
86 };
87 struct user {
88   struct user_regs_struct regs;
89   int u_fpvalid;
90   struct user_fpregs_struct i387;
91   unsigned long int u_tsize;
92   unsigned long int u_dsize;
93   unsigned long int u_ssize;
94   unsigned long start_code;
95   unsigned long start_stack;
96   long int signal;
97   int reserved;
98   struct user_regs_struct* u_ar0;
99   struct user_fpregs_struct* u_fpstate;
100   unsigned long magic;
101   char u_comm[32];
102   int u_debugreg[8];
103 };
104 
105 #elif defined(__x86_64__)
106 
107 struct user_fpregs_struct {
108   unsigned short cwd;
109   unsigned short swd;
110   unsigned short ftw;
111   unsigned short fop;
112   unsigned long rip;
113   unsigned long rdp;
114   unsigned int mxcsr;
115   unsigned int mxcr_mask;
116   unsigned int st_space[32];
117   unsigned int xmm_space[64];
118   unsigned int padding[24];
119 };
120 struct user_regs_struct {
121   unsigned long r15;
122   unsigned long r14;
123   unsigned long r13;
124   unsigned long r12;
125   unsigned long rbp;
126   unsigned long rbx;
127   unsigned long r11;
128   unsigned long r10;
129   unsigned long r9;
130   unsigned long r8;
131   unsigned long rax;
132   unsigned long rcx;
133   unsigned long rdx;
134   unsigned long rsi;
135   unsigned long rdi;
136   unsigned long orig_rax;
137   unsigned long rip;
138   unsigned long cs;
139   unsigned long eflags;
140   unsigned long rsp;
141   unsigned long ss;
142   unsigned long fs_base;
143   unsigned long gs_base;
144   unsigned long ds;
145   unsigned long es;
146   unsigned long fs;
147   unsigned long gs;
148 };
149 struct user {
150   struct user_regs_struct regs;
151   int u_fpvalid;
152   int pad0;
153   struct user_fpregs_struct i387;
154   unsigned long int u_tsize;
155   unsigned long int u_dsize;
156   unsigned long int u_ssize;
157   unsigned long start_code;
158   unsigned long start_stack;
159   long int signal;
160   int reserved;
161   int pad1;
162   struct user_regs_struct* u_ar0;
163   struct user_fpregs_struct* u_fpstate;
164   unsigned long magic;
165   char u_comm[32];
166   unsigned long u_debugreg[8];
167   unsigned long error_code;
168   unsigned long fault_address;
169 };
170 
171 #elif defined(__mips__)
172 
173 struct user {
174   unsigned long regs[180 / sizeof(unsigned long) + 64];
175   size_t u_tsize;
176   size_t u_dsize;
177   size_t u_ssize;
178   unsigned long start_code;
179   unsigned long start_data;
180   unsigned long start_stack;
181   long int signal;
182   void* u_ar0;
183   unsigned long magic;
184   char u_comm[32];
185 };
186 
187 #elif defined(__arm__)
188 
189 struct user_fpregs {
190   struct fp_reg {
191     unsigned int sign1:1;
192     unsigned int unused:15;
193     unsigned int sign2:1;
194     unsigned int exponent:14;
195     unsigned int j:1;
196     unsigned int mantissa1:31;
197     unsigned int mantissa0:32;
198   } fpregs[8];
199   unsigned int fpsr:32;
200   unsigned int fpcr:32;
201   unsigned char ftype[8];
202   unsigned int init_flag;
203 };
204 struct user_regs {
205   unsigned long uregs[18];
206 };
207 struct user_vfp {
208   unsigned long long fpregs[32];
209   unsigned long fpscr;
210 };
211 struct user_vfp_exc {
212   unsigned long fpexc;
213   unsigned long fpinst;
214   unsigned long fpinst2;
215 };
216 struct user {
217   struct user_regs regs;
218   int u_fpvalid;
219   unsigned long int u_tsize;
220   unsigned long int u_dsize;
221   unsigned long int u_ssize;
222   unsigned long start_code;
223   unsigned long start_stack;
224   long int signal;
225   int reserved;
226   struct user_regs* u_ar0;
227   unsigned long magic;
228   char u_comm[32];
229   int u_debugreg[8];
230   struct user_fpregs u_fp;
231   struct user_fpregs* u_fp0;
232 };
233 
234 #elif defined(__aarch64__)
235 
236 struct user_regs_struct {
237   uint64_t regs[31];
238   uint64_t sp;
239   uint64_t pc;
240   uint64_t pstate;
241 };
242 struct user_fpsimd_struct {
243   __uint128_t vregs[32];
244   uint32_t fpsr;
245   uint32_t fpcr;
246 };
247 
248 #else
249 
250 #error "Unsupported architecture."
251 
252 #endif
253 
254 __END_DECLS
255 
256 #endif  /* _SYS_USER_H_ */
257