2 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
6 #ifndef __SYSDEP_I386_PTRACE_H
7 #define __SYSDEP_I386_PTRACE_H
9 #include "uml-config.h"
11 #ifdef UML_CONFIG_MODE_TT
12 #include "sysdep/sc.h"
15 #ifdef UML_CONFIG_MODE_SKAS
17 /* syscall emulation path in ptrace */
20 #define PTRACE_SYSEMU 31
23 void set_using_sysemu(int value);
24 int get_using_sysemu(void);
25 extern int sysemu_supported;
27 #include "skas_ptregs.h"
29 #define HOST_FRAME_SIZE 17
31 #define REGS_IP(r) ((r)[HOST_IP])
32 #define REGS_SP(r) ((r)[HOST_SP])
33 #define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
34 #define REGS_EAX(r) ((r)[HOST_EAX])
35 #define REGS_EBX(r) ((r)[HOST_EBX])
36 #define REGS_ECX(r) ((r)[HOST_ECX])
37 #define REGS_EDX(r) ((r)[HOST_EDX])
38 #define REGS_ESI(r) ((r)[HOST_ESI])
39 #define REGS_EDI(r) ((r)[HOST_EDI])
40 #define REGS_EBP(r) ((r)[HOST_EBP])
41 #define REGS_CS(r) ((r)[HOST_CS])
42 #define REGS_SS(r) ((r)[HOST_SS])
43 #define REGS_DS(r) ((r)[HOST_DS])
44 #define REGS_ES(r) ((r)[HOST_ES])
45 #define REGS_FS(r) ((r)[HOST_FS])
46 #define REGS_GS(r) ((r)[HOST_GS])
48 #define REGS_SET_SYSCALL_RETURN(r, res) REGS_EAX(r) = (res)
50 #define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r))
52 #define REGS_SEGV_IS_FIXABLE(r) SEGV_IS_FIXABLE((r)->trap_type)
54 #define REGS_FAULT_ADDR(r) ((r)->fault_addr)
56 #define REGS_FAULT_WRITE(r) FAULT_WRITE((r)->fault_type)
59 #ifndef PTRACE_SYSEMU_SINGLESTEP
60 #define PTRACE_SYSEMU_SINGLESTEP 32
63 #include "choose-mode.h"
66 #ifdef UML_CONFIG_MODE_TT
72 #ifdef UML_CONFIG_MODE_SKAS
74 unsigned long regs[HOST_FRAME_SIZE];
75 unsigned long fp[HOST_FP_SIZE];
76 unsigned long xfp[HOST_XFP_SIZE];
77 unsigned long fault_addr;
78 unsigned long fault_type;
79 unsigned long trap_type;
86 #define EMPTY_UML_PT_REGS { }
90 #define UPT_SC(r) ((r)->tt.sc)
92 CHOOSE_MODE(SC_IP(UPT_SC(r)), REGS_IP((r)->skas.regs))
94 CHOOSE_MODE(SC_SP(UPT_SC(r)), REGS_SP((r)->skas.regs))
95 #define UPT_EFLAGS(r) \
96 CHOOSE_MODE(SC_EFLAGS(UPT_SC(r)), REGS_EFLAGS((r)->skas.regs))
98 CHOOSE_MODE(SC_EAX(UPT_SC(r)), REGS_EAX((r)->skas.regs))
100 CHOOSE_MODE(SC_EBX(UPT_SC(r)), REGS_EBX((r)->skas.regs))
102 CHOOSE_MODE(SC_ECX(UPT_SC(r)), REGS_ECX((r)->skas.regs))
104 CHOOSE_MODE(SC_EDX(UPT_SC(r)), REGS_EDX((r)->skas.regs))
106 CHOOSE_MODE(SC_ESI(UPT_SC(r)), REGS_ESI((r)->skas.regs))
108 CHOOSE_MODE(SC_EDI(UPT_SC(r)), REGS_EDI((r)->skas.regs))
110 CHOOSE_MODE(SC_EBP(UPT_SC(r)), REGS_EBP((r)->skas.regs))
111 #define UPT_ORIG_EAX(r) \
112 CHOOSE_MODE((r)->tt.syscall, (r)->skas.syscall)
114 CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs))
116 CHOOSE_MODE(SC_SS(UPT_SC(r)), REGS_SS((r)->skas.regs))
118 CHOOSE_MODE(SC_DS(UPT_SC(r)), REGS_DS((r)->skas.regs))
120 CHOOSE_MODE(SC_ES(UPT_SC(r)), REGS_ES((r)->skas.regs))
122 CHOOSE_MODE(SC_FS(UPT_SC(r)), REGS_FS((r)->skas.regs))
124 CHOOSE_MODE(SC_GS(UPT_SC(r)), REGS_GS((r)->skas.regs))
126 #define UPT_SYSCALL_ARG1(r) UPT_EBX(r)
127 #define UPT_SYSCALL_ARG2(r) UPT_ECX(r)
128 #define UPT_SYSCALL_ARG3(r) UPT_EDX(r)
129 #define UPT_SYSCALL_ARG4(r) UPT_ESI(r)
130 #define UPT_SYSCALL_ARG5(r) UPT_EDI(r)
131 #define UPT_SYSCALL_ARG6(r) UPT_EBP(r)
133 extern int user_context(unsigned long sp);
135 #define UPT_IS_USER(r) \
136 CHOOSE_MODE(user_context(UPT_SP(r)), (r)->skas.is_user)
138 struct syscall_args {
139 unsigned long args[6];
142 #define SYSCALL_ARGS(r) ((struct syscall_args) \
143 { .args = { UPT_SYSCALL_ARG1(r), \
144 UPT_SYSCALL_ARG2(r), \
145 UPT_SYSCALL_ARG3(r), \
146 UPT_SYSCALL_ARG4(r), \
147 UPT_SYSCALL_ARG5(r), \
148 UPT_SYSCALL_ARG6(r) } } )
150 #define UPT_REG(regs, reg) \
151 ({ unsigned long val; \
153 case EIP: val = UPT_IP(regs); break; \
154 case UESP: val = UPT_SP(regs); break; \
155 case EAX: val = UPT_EAX(regs); break; \
156 case EBX: val = UPT_EBX(regs); break; \
157 case ECX: val = UPT_ECX(regs); break; \
158 case EDX: val = UPT_EDX(regs); break; \
159 case ESI: val = UPT_ESI(regs); break; \
160 case EDI: val = UPT_EDI(regs); break; \
161 case EBP: val = UPT_EBP(regs); break; \
162 case ORIG_EAX: val = UPT_ORIG_EAX(regs); break; \
163 case CS: val = UPT_CS(regs); break; \
164 case SS: val = UPT_SS(regs); break; \
165 case DS: val = UPT_DS(regs); break; \
166 case ES: val = UPT_ES(regs); break; \
167 case FS: val = UPT_FS(regs); break; \
168 case GS: val = UPT_GS(regs); break; \
169 case EFL: val = UPT_EFLAGS(regs); break; \
171 panic("Bad register in UPT_REG : %d\n", reg); \
178 #define UPT_SET(regs, reg, val) \
181 case EIP: UPT_IP(regs) = val; break; \
182 case UESP: UPT_SP(regs) = val; break; \
183 case EAX: UPT_EAX(regs) = val; break; \
184 case EBX: UPT_EBX(regs) = val; break; \
185 case ECX: UPT_ECX(regs) = val; break; \
186 case EDX: UPT_EDX(regs) = val; break; \
187 case ESI: UPT_ESI(regs) = val; break; \
188 case EDI: UPT_EDI(regs) = val; break; \
189 case EBP: UPT_EBP(regs) = val; break; \
190 case ORIG_EAX: UPT_ORIG_EAX(regs) = val; break; \
191 case CS: UPT_CS(regs) = val; break; \
192 case SS: UPT_SS(regs) = val; break; \
193 case DS: UPT_DS(regs) = val; break; \
194 case ES: UPT_ES(regs) = val; break; \
195 case FS: UPT_FS(regs) = val; break; \
196 case GS: UPT_GS(regs) = val; break; \
197 case EFL: UPT_EFLAGS(regs) = val; break; \
199 panic("Bad register in UPT_SET : %d\n", reg); \
204 #define UPT_SET_SYSCALL_RETURN(r, res) \
205 CHOOSE_MODE(SC_SET_SYSCALL_RETURN(UPT_SC(r), (res)), \
206 REGS_SET_SYSCALL_RETURN((r)->skas.regs, (res)))
208 #define UPT_RESTART_SYSCALL(r) \
209 CHOOSE_MODE(SC_RESTART_SYSCALL(UPT_SC(r)), \
210 REGS_RESTART_SYSCALL((r)->skas.regs))
212 #define UPT_ORIG_SYSCALL(r) UPT_EAX(r)
213 #define UPT_SYSCALL_NR(r) UPT_ORIG_EAX(r)
214 #define UPT_SYSCALL_RET(r) UPT_EAX(r)
216 #define UPT_SEGV_IS_FIXABLE(r) \
217 CHOOSE_MODE(SC_SEGV_IS_FIXABLE(UPT_SC(r)), \
218 REGS_SEGV_IS_FIXABLE(&r->skas))
220 #define UPT_FAULT_ADDR(r) \
221 CHOOSE_MODE(SC_FAULT_ADDR(UPT_SC(r)), REGS_FAULT_ADDR(&r->skas))
223 #define UPT_FAULT_WRITE(r) \
224 CHOOSE_MODE(SC_FAULT_WRITE(UPT_SC(r)), REGS_FAULT_WRITE(&r->skas))
229 * Overrides for Emacs so that we follow Linus's tabbing style.
230 * Emacs will notice this stuff at the end of the file and automatically
231 * adjust the settings for this buffer only. This must remain at the end
233 * ---------------------------------------------------------------------------
235 * c-file-style: "linux"