1/* Copyright (C) 2001-2014 Free Software Foundation, Inc.
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
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#ifndef _SYS_USER_H
19#define _SYS_USER_H 1
20
21/* The whole purpose of this file is for GDB and GDB only. Don't read
22 too much into it. Don't use it for anything other than GDB unless
23 you know what you are doing. */
24
25#include <unistd.h>
26
27#ifdef __x86_64__
28
29struct user_fpregs_struct
30{
31 unsigned short int cwd;
32 unsigned short int swd;
33 unsigned short int ftw;
34 unsigned short int fop;
35 __extension__ unsigned long long int rip;
36 __extension__ unsigned long long int rdp;
37 unsigned int mxcsr;
38 unsigned int mxcr_mask;
39 unsigned int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
40 unsigned int xmm_space[64]; /* 16*16 bytes for each XMM-reg = 256 bytes */
41 unsigned int padding[24];
42};
43
44struct user_regs_struct
45{
46 __extension__ unsigned long long int r15;
47 __extension__ unsigned long long int r14;
48 __extension__ unsigned long long int r13;
49 __extension__ unsigned long long int r12;
50 __extension__ unsigned long long int rbp;
51 __extension__ unsigned long long int rbx;
52 __extension__ unsigned long long int r11;
53 __extension__ unsigned long long int r10;
54 __extension__ unsigned long long int r9;
55 __extension__ unsigned long long int r8;
56 __extension__ unsigned long long int rax;
57 __extension__ unsigned long long int rcx;
58 __extension__ unsigned long long int rdx;
59 __extension__ unsigned long long int rsi;
60 __extension__ unsigned long long int rdi;
61 __extension__ unsigned long long int orig_rax;
62 __extension__ unsigned long long int rip;
63 __extension__ unsigned long long int cs;
64 __extension__ unsigned long long int eflags;
65 __extension__ unsigned long long int rsp;
66 __extension__ unsigned long long int ss;
67 __extension__ unsigned long long int fs_base;
68 __extension__ unsigned long long int gs_base;
69 __extension__ unsigned long long int ds;
70 __extension__ unsigned long long int es;
71 __extension__ unsigned long long int fs;
72 __extension__ unsigned long long int gs;
73};
74
75struct user
76{
77 struct user_regs_struct regs;
78 int u_fpvalid;
79 struct user_fpregs_struct i387;
80 __extension__ unsigned long long int u_tsize;
81 __extension__ unsigned long long int u_dsize;
82 __extension__ unsigned long long int u_ssize;
83 __extension__ unsigned long long int start_code;
84 __extension__ unsigned long long int start_stack;
85 __extension__ long long int signal;
86 int reserved;
87 __extension__ union
88 {
89 struct user_regs_struct* u_ar0;
90 __extension__ unsigned long long int __u_ar0_word;
91 };
92 __extension__ union
93 {
94 struct user_fpregs_struct* u_fpstate;
95 __extension__ unsigned long long int __u_fpstate_word;
96 };
97 __extension__ unsigned long long int magic;
98 char u_comm [32];
99 __extension__ unsigned long long int u_debugreg [8];
100};
101
102#else
103/* These are the 32-bit x86 structures. */
104struct user_fpregs_struct
105{
106 long int cwd;
107 long int swd;
108 long int twd;
109 long int fip;
110 long int fcs;
111 long int foo;
112 long int fos;
113 long int st_space [20];
114};
115
116struct user_fpxregs_struct
117{
118 unsigned short int cwd;
119 unsigned short int swd;
120 unsigned short int twd;
121 unsigned short int fop;
122 long int fip;
123 long int fcs;
124 long int foo;
125 long int fos;
126 long int mxcsr;
127 long int reserved;
128 long int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
129 long int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
130 long int padding[56];
131};
132
133struct user_regs_struct
134{
135 long int ebx;
136 long int ecx;
137 long int edx;
138 long int esi;
139 long int edi;
140 long int ebp;
141 long int eax;
142 long int xds;
143 long int xes;
144 long int xfs;
145 long int xgs;
146 long int orig_eax;
147 long int eip;
148 long int xcs;
149 long int eflags;
150 long int esp;
151 long int xss;
152};
153
154struct user
155{
156 struct user_regs_struct regs;
157 int u_fpvalid;
158 struct user_fpregs_struct i387;
159 unsigned long int u_tsize;
160 unsigned long int u_dsize;
161 unsigned long int u_ssize;
162 unsigned long int start_code;
163 unsigned long int start_stack;
164 long int signal;
165 int reserved;
166 struct user_regs_struct* u_ar0;
167 struct user_fpregs_struct* u_fpstate;
168 unsigned long int magic;
169 char u_comm [32];
170 int u_debugreg [8];
171};
172#endif /* __x86_64__ */
173
174#define PAGE_SHIFT 12
175#define PAGE_SIZE (1UL << PAGE_SHIFT)
176#define PAGE_MASK (~(PAGE_SIZE-1))
177#define NBPG PAGE_SIZE
178#define UPAGES 1
179#define HOST_TEXT_START_ADDR (u.start_code)
180#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
181
182#endif /* _SYS_USER_H */
183