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 #define UPAGES 1
106 #define HOST_TEXT_START_ADDR (u.start_code)
107 #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * PAGE_SIZE)
108 
109 #elif defined(__x86_64__)
110 
111 struct user_fpregs_struct {
112   unsigned short cwd;
113   unsigned short swd;
114   unsigned short ftw;
115   unsigned short fop;
116   unsigned long rip;
117   unsigned long rdp;
118   unsigned int mxcsr;
119   unsigned int mxcr_mask;
120   unsigned int st_space[32];
121   unsigned int xmm_space[64];
122   unsigned int padding[24];
123 };
124 struct user_regs_struct {
125   unsigned long r15;
126   unsigned long r14;
127   unsigned long r13;
128   unsigned long r12;
129   unsigned long rbp;
130   unsigned long rbx;
131   unsigned long r11;
132   unsigned long r10;
133   unsigned long r9;
134   unsigned long r8;
135   unsigned long rax;
136   unsigned long rcx;
137   unsigned long rdx;
138   unsigned long rsi;
139   unsigned long rdi;
140   unsigned long orig_rax;
141   unsigned long rip;
142   unsigned long cs;
143   unsigned long eflags;
144   unsigned long rsp;
145   unsigned long ss;
146   unsigned long fs_base;
147   unsigned long gs_base;
148   unsigned long ds;
149   unsigned long es;
150   unsigned long fs;
151   unsigned long gs;
152 };
153 struct user {
154   struct user_regs_struct regs;
155   int u_fpvalid;
156   int pad0;
157   struct user_fpregs_struct i387;
158   unsigned long int u_tsize;
159   unsigned long int u_dsize;
160   unsigned long int u_ssize;
161   unsigned long start_code;
162   unsigned long start_stack;
163   long int signal;
164   int reserved;
165   int pad1;
166   struct user_regs_struct* u_ar0;
167   struct user_fpregs_struct* u_fpstate;
168   unsigned long magic;
169   char u_comm[32];
170   unsigned long u_debugreg[8];
171   unsigned long error_code;
172   unsigned long fault_address;
173 };
174 
175 #elif defined(__arm__)
176 
177 struct user_fpregs {
178   struct fp_reg {
179     unsigned int sign1:1;
180     unsigned int unused:15;
181     unsigned int sign2:1;
182     unsigned int exponent:14;
183     unsigned int j:1;
184     unsigned int mantissa1:31;
185     unsigned int mantissa0:32;
186   } fpregs[8];
187   unsigned int fpsr:32;
188   unsigned int fpcr:32;
189   unsigned char ftype[8];
190   unsigned int init_flag;
191 };
192 struct user_regs {
193   unsigned long uregs[18];
194 };
195 struct user_vfp {
196   unsigned long long fpregs[32];
197   unsigned long fpscr;
198 };
199 struct user_vfp_exc {
200   unsigned long fpexc;
201   unsigned long fpinst;
202   unsigned long fpinst2;
203 };
204 struct user {
205   struct user_regs regs;
206   int u_fpvalid;
207   unsigned long int u_tsize;
208   unsigned long int u_dsize;
209   unsigned long int u_ssize;
210   unsigned long start_code;
211   unsigned long start_stack;
212   long int signal;
213   int reserved;
214   struct user_regs* u_ar0;
215   unsigned long magic;
216   char u_comm[32];
217   int u_debugreg[8];
218   struct user_fpregs u_fp;
219   struct user_fpregs* u_fp0;
220 };
221 
222 #elif defined(__aarch64__)
223 
224 struct user_regs_struct {
225   uint64_t regs[31];
226   uint64_t sp;
227   uint64_t pc;
228   uint64_t pstate;
229 };
230 struct user_fpsimd_struct {
231   __uint128_t vregs[32];
232   uint32_t fpsr;
233   uint32_t fpcr;
234 };
235 
236 #else
237 
238 #error "Unsupported architecture."
239 
240 #endif
241 
242 __END_DECLS
243 
244 #endif  /* _SYS_USER_H_ */
245