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Commit | Line | Data |
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8ca842c4 | 1 | /* |
6aa802ce | 2 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
1da177e4 LT |
3 | * Licensed under the GPL |
4 | */ | |
5 | ||
6 | #ifndef __SYSDEP_I386_PTRACE_H | |
7 | #define __SYSDEP_I386_PTRACE_H | |
8 | ||
9 | #include "uml-config.h" | |
10 | #include "user_constants.h" | |
36ca1195 | 11 | #include "sysdep/faultinfo.h" |
1da177e4 LT |
12 | |
13 | #define MAX_REG_NR (UM_FRAME_SIZE / sizeof(unsigned long)) | |
14 | #define MAX_REG_OFFSET (UM_FRAME_SIZE) | |
15 | ||
972410b0 | 16 | static inline void update_debugregs(int seq) {} |
1da177e4 LT |
17 | |
18 | /* syscall emulation path in ptrace */ | |
19 | ||
20 | #ifndef PTRACE_SYSEMU | |
21 | #define PTRACE_SYSEMU 31 | |
22 | #endif | |
23 | ||
24 | void set_using_sysemu(int value); | |
25 | int get_using_sysemu(void); | |
26 | extern int sysemu_supported; | |
27 | ||
1da177e4 LT |
28 | #include "skas_ptregs.h" |
29 | ||
30 | #define REGS_IP(r) ((r)[HOST_IP]) | |
31 | #define REGS_SP(r) ((r)[HOST_SP]) | |
32 | #define REGS_EFLAGS(r) ((r)[HOST_EFLAGS]) | |
33 | #define REGS_EAX(r) ((r)[HOST_EAX]) | |
34 | #define REGS_EBX(r) ((r)[HOST_EBX]) | |
35 | #define REGS_ECX(r) ((r)[HOST_ECX]) | |
36 | #define REGS_EDX(r) ((r)[HOST_EDX]) | |
37 | #define REGS_ESI(r) ((r)[HOST_ESI]) | |
38 | #define REGS_EDI(r) ((r)[HOST_EDI]) | |
39 | #define REGS_EBP(r) ((r)[HOST_EBP]) | |
40 | #define REGS_CS(r) ((r)[HOST_CS]) | |
41 | #define REGS_SS(r) ((r)[HOST_SS]) | |
42 | #define REGS_DS(r) ((r)[HOST_DS]) | |
43 | #define REGS_ES(r) ((r)[HOST_ES]) | |
44 | #define REGS_FS(r) ((r)[HOST_FS]) | |
45 | #define REGS_GS(r) ((r)[HOST_GS]) | |
46 | ||
47 | #define REGS_SET_SYSCALL_RETURN(r, res) REGS_EAX(r) = (res) | |
48 | ||
49 | #define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r)) | |
50 | ||
1da177e4 LT |
51 | #ifndef PTRACE_SYSEMU_SINGLESTEP |
52 | #define PTRACE_SYSEMU_SINGLESTEP 32 | |
53 | #endif | |
54 | ||
77bf4400 | 55 | struct uml_pt_regs { |
18baddda | 56 | unsigned long gp[MAX_REG_NR]; |
77bf4400 JD |
57 | unsigned long fp[HOST_FP_SIZE]; |
58 | unsigned long xfp[HOST_XFP_SIZE]; | |
59 | struct faultinfo faultinfo; | |
60 | long syscall; | |
61 | int is_user; | |
1da177e4 LT |
62 | }; |
63 | ||
64 | #define EMPTY_UML_PT_REGS { } | |
65 | ||
18baddda JD |
66 | #define UPT_IP(r) REGS_IP((r)->gp) |
67 | #define UPT_SP(r) REGS_SP((r)->gp) | |
68 | #define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp) | |
69 | #define UPT_EAX(r) REGS_EAX((r)->gp) | |
70 | #define UPT_EBX(r) REGS_EBX((r)->gp) | |
71 | #define UPT_ECX(r) REGS_ECX((r)->gp) | |
72 | #define UPT_EDX(r) REGS_EDX((r)->gp) | |
73 | #define UPT_ESI(r) REGS_ESI((r)->gp) | |
74 | #define UPT_EDI(r) REGS_EDI((r)->gp) | |
75 | #define UPT_EBP(r) REGS_EBP((r)->gp) | |
77bf4400 | 76 | #define UPT_ORIG_EAX(r) ((r)->syscall) |
18baddda JD |
77 | #define UPT_CS(r) REGS_CS((r)->gp) |
78 | #define UPT_SS(r) REGS_SS((r)->gp) | |
79 | #define UPT_DS(r) REGS_DS((r)->gp) | |
80 | #define UPT_ES(r) REGS_ES((r)->gp) | |
81 | #define UPT_FS(r) REGS_FS((r)->gp) | |
82 | #define UPT_GS(r) REGS_GS((r)->gp) | |
1da177e4 LT |
83 | |
84 | #define UPT_SYSCALL_ARG1(r) UPT_EBX(r) | |
85 | #define UPT_SYSCALL_ARG2(r) UPT_ECX(r) | |
86 | #define UPT_SYSCALL_ARG3(r) UPT_EDX(r) | |
87 | #define UPT_SYSCALL_ARG4(r) UPT_ESI(r) | |
88 | #define UPT_SYSCALL_ARG5(r) UPT_EDI(r) | |
89 | #define UPT_SYSCALL_ARG6(r) UPT_EBP(r) | |
90 | ||
91 | extern int user_context(unsigned long sp); | |
92 | ||
77bf4400 | 93 | #define UPT_IS_USER(r) ((r)->is_user) |
1da177e4 LT |
94 | |
95 | struct syscall_args { | |
96 | unsigned long args[6]; | |
97 | }; | |
98 | ||
99 | #define SYSCALL_ARGS(r) ((struct syscall_args) \ | |
ba180fd4 JD |
100 | { .args = { UPT_SYSCALL_ARG1(r), \ |
101 | UPT_SYSCALL_ARG2(r), \ | |
102 | UPT_SYSCALL_ARG3(r), \ | |
103 | UPT_SYSCALL_ARG4(r), \ | |
104 | UPT_SYSCALL_ARG5(r), \ | |
105 | UPT_SYSCALL_ARG6(r) } } ) | |
1da177e4 LT |
106 | |
107 | #define UPT_REG(regs, reg) \ | |
108 | ({ unsigned long val; \ | |
109 | switch(reg){ \ | |
110 | case EIP: val = UPT_IP(regs); break; \ | |
111 | case UESP: val = UPT_SP(regs); break; \ | |
112 | case EAX: val = UPT_EAX(regs); break; \ | |
113 | case EBX: val = UPT_EBX(regs); break; \ | |
114 | case ECX: val = UPT_ECX(regs); break; \ | |
115 | case EDX: val = UPT_EDX(regs); break; \ | |
116 | case ESI: val = UPT_ESI(regs); break; \ | |
117 | case EDI: val = UPT_EDI(regs); break; \ | |
118 | case EBP: val = UPT_EBP(regs); break; \ | |
119 | case ORIG_EAX: val = UPT_ORIG_EAX(regs); break; \ | |
120 | case CS: val = UPT_CS(regs); break; \ | |
121 | case SS: val = UPT_SS(regs); break; \ | |
122 | case DS: val = UPT_DS(regs); break; \ | |
123 | case ES: val = UPT_ES(regs); break; \ | |
124 | case FS: val = UPT_FS(regs); break; \ | |
125 | case GS: val = UPT_GS(regs); break; \ | |
126 | case EFL: val = UPT_EFLAGS(regs); break; \ | |
127 | default : \ | |
128 | panic("Bad register in UPT_REG : %d\n", reg); \ | |
129 | val = -1; \ | |
130 | } \ | |
131 | val; \ | |
132 | }) | |
1da177e4 LT |
133 | |
134 | #define UPT_SET(regs, reg, val) \ | |
135 | do { \ | |
136 | switch(reg){ \ | |
137 | case EIP: UPT_IP(regs) = val; break; \ | |
138 | case UESP: UPT_SP(regs) = val; break; \ | |
139 | case EAX: UPT_EAX(regs) = val; break; \ | |
140 | case EBX: UPT_EBX(regs) = val; break; \ | |
141 | case ECX: UPT_ECX(regs) = val; break; \ | |
142 | case EDX: UPT_EDX(regs) = val; break; \ | |
143 | case ESI: UPT_ESI(regs) = val; break; \ | |
144 | case EDI: UPT_EDI(regs) = val; break; \ | |
145 | case EBP: UPT_EBP(regs) = val; break; \ | |
146 | case ORIG_EAX: UPT_ORIG_EAX(regs) = val; break; \ | |
147 | case CS: UPT_CS(regs) = val; break; \ | |
148 | case SS: UPT_SS(regs) = val; break; \ | |
149 | case DS: UPT_DS(regs) = val; break; \ | |
150 | case ES: UPT_ES(regs) = val; break; \ | |
151 | case FS: UPT_FS(regs) = val; break; \ | |
152 | case GS: UPT_GS(regs) = val; break; \ | |
153 | case EFL: UPT_EFLAGS(regs) = val; break; \ | |
154 | default : \ | |
155 | panic("Bad register in UPT_SET : %d\n", reg); \ | |
156 | break; \ | |
157 | } \ | |
158 | } while (0) | |
159 | ||
160 | #define UPT_SET_SYSCALL_RETURN(r, res) \ | |
77bf4400 | 161 | REGS_SET_SYSCALL_RETURN((r)->regs, (res)) |
1da177e4 | 162 | |
18baddda | 163 | #define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp) |
1da177e4 LT |
164 | |
165 | #define UPT_ORIG_SYSCALL(r) UPT_EAX(r) | |
166 | #define UPT_SYSCALL_NR(r) UPT_ORIG_EAX(r) | |
167 | #define UPT_SYSCALL_RET(r) UPT_EAX(r) | |
168 | ||
77bf4400 | 169 | #define UPT_FAULTINFO(r) (&(r)->faultinfo) |
1da177e4 LT |
170 | |
171 | #endif |