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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 | /* * Copyright 2003 PathScale, Inc. * * Licensed under the GPL */ #ifndef __SYSDEP_X86_64_PTRACE_H #define __SYSDEP_X86_64_PTRACE_H #include "uml-config.h" #include "user_constants.h" #include "sysdep/faultinfo.h" #define MAX_REG_OFFSET (UM_FRAME_SIZE) #define MAX_REG_NR ((MAX_REG_OFFSET) / sizeof(unsigned long)) #ifdef UML_CONFIG_MODE_TT #include "sysdep/sc.h" #endif #ifdef UML_CONFIG_MODE_SKAS #include "skas_ptregs.h" #define REGS_IP(r) ((r)[HOST_IP]) #define REGS_SP(r) ((r)[HOST_SP]) #define REGS_RBX(r) ((r)[HOST_RBX]) #define REGS_RCX(r) ((r)[HOST_RCX]) #define REGS_RDX(r) ((r)[HOST_RDX]) #define REGS_RSI(r) ((r)[HOST_RSI]) #define REGS_RDI(r) ((r)[HOST_RDI]) #define REGS_RBP(r) ((r)[HOST_RBP]) #define REGS_RAX(r) ((r)[HOST_RAX]) #define REGS_R8(r) ((r)[HOST_R8]) #define REGS_R9(r) ((r)[HOST_R9]) #define REGS_R10(r) ((r)[HOST_R10]) #define REGS_R11(r) ((r)[HOST_R11]) #define REGS_R12(r) ((r)[HOST_R12]) #define REGS_R13(r) ((r)[HOST_R13]) #define REGS_R14(r) ((r)[HOST_R14]) #define REGS_R15(r) ((r)[HOST_R15]) #define REGS_CS(r) ((r)[HOST_CS]) #define REGS_EFLAGS(r) ((r)[HOST_EFLAGS]) #define REGS_SS(r) ((r)[HOST_SS]) #define HOST_FS_BASE 21 #define HOST_GS_BASE 22 #define HOST_DS 23 #define HOST_ES 24 #define HOST_FS 25 #define HOST_GS 26 /* Also defined in asm/ptrace-x86_64.h, but not in libc headers. So, these * are already defined for kernel code, but not for userspace code. */ #ifndef FS_BASE /* These aren't defined in ptrace.h, but exist in struct user_regs_struct, * which is what x86_64 ptrace actually uses. */ #define FS_BASE (HOST_FS_BASE * sizeof(long)) #define GS_BASE (HOST_GS_BASE * sizeof(long)) #define DS (HOST_DS * sizeof(long)) #define ES (HOST_ES * sizeof(long)) #define FS (HOST_FS * sizeof(long)) #define GS (HOST_GS * sizeof(long)) #endif #define REGS_FS_BASE(r) ((r)[HOST_FS_BASE]) #define REGS_GS_BASE(r) ((r)[HOST_GS_BASE]) #define REGS_DS(r) ((r)[HOST_DS]) #define REGS_ES(r) ((r)[HOST_ES]) #define REGS_FS(r) ((r)[HOST_FS]) #define REGS_GS(r) ((r)[HOST_GS]) #define REGS_ORIG_RAX(r) ((r)[HOST_ORIG_RAX]) #define REGS_SET_SYSCALL_RETURN(r, res) REGS_RAX(r) = (res) #define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r)) #define REGS_SEGV_IS_FIXABLE(r) SEGV_IS_FIXABLE((r)->trap_type) #define REGS_FAULT_ADDR(r) ((r)->fault_addr) #define REGS_FAULT_WRITE(r) FAULT_WRITE((r)->fault_type) #define REGS_TRAP(r) ((r)->trap_type) #define REGS_ERR(r) ((r)->fault_type) #endif #include "choose-mode.h" /* XXX */ union uml_pt_regs { #ifdef UML_CONFIG_MODE_TT struct tt_regs { long syscall; unsigned long orig_rax; void *sc; struct faultinfo faultinfo; } tt; #endif #ifdef UML_CONFIG_MODE_SKAS struct skas_regs { unsigned long regs[MAX_REG_NR]; unsigned long fp[HOST_FP_SIZE]; struct faultinfo faultinfo; long syscall; int is_user; } skas; #endif }; #define EMPTY_UML_PT_REGS { } /* XXX */ extern int mode_tt; #define UPT_RBX(r) __CHOOSE_MODE(SC_RBX(UPT_SC(r)), REGS_RBX((r)->skas.regs)) #define UPT_RCX(r) __CHOOSE_MODE(SC_RCX(UPT_SC(r)), REGS_RCX((r)->skas.regs)) #define UPT_RDX(r) __CHOOSE_MODE(SC_RDX(UPT_SC(r)), REGS_RDX((r)->skas.regs)) #define UPT_RSI(r) __CHOOSE_MODE(SC_RSI(UPT_SC(r)), REGS_RSI((r)->skas.regs)) #define UPT_RDI(r) __CHOOSE_MODE(SC_RDI(UPT_SC(r)), REGS_RDI((r)->skas.regs)) #define UPT_RBP(r) __CHOOSE_MODE(SC_RBP(UPT_SC(r)), REGS_RBP((r)->skas.regs)) #define UPT_RAX(r) __CHOOSE_MODE(SC_RAX(UPT_SC(r)), REGS_RAX((r)->skas.regs)) #define UPT_R8(r) __CHOOSE_MODE(SC_R8(UPT_SC(r)), REGS_R8((r)->skas.regs)) #define UPT_R9(r) __CHOOSE_MODE(SC_R9(UPT_SC(r)), REGS_R9((r)->skas.regs)) #define UPT_R10(r) __CHOOSE_MODE(SC_R10(UPT_SC(r)), REGS_R10((r)->skas.regs)) #define UPT_R11(r) __CHOOSE_MODE(SC_R11(UPT_SC(r)), REGS_R11((r)->skas.regs)) #define UPT_R12(r) __CHOOSE_MODE(SC_R12(UPT_SC(r)), REGS_R12((r)->skas.regs)) #define UPT_R13(r) __CHOOSE_MODE(SC_R13(UPT_SC(r)), REGS_R13((r)->skas.regs)) #define UPT_R14(r) __CHOOSE_MODE(SC_R14(UPT_SC(r)), REGS_R14((r)->skas.regs)) #define UPT_R15(r) __CHOOSE_MODE(SC_R15(UPT_SC(r)), REGS_R15((r)->skas.regs)) #define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs)) #define UPT_FS_BASE(r) \ __CHOOSE_MODE(SC_FS_BASE(UPT_SC(r)), REGS_FS_BASE((r)->skas.regs)) #define UPT_FS(r) __CHOOSE_MODE(SC_FS(UPT_SC(r)), REGS_FS((r)->skas.regs)) #define UPT_GS_BASE(r) \ __CHOOSE_MODE(SC_GS_BASE(UPT_SC(r)), REGS_GS_BASE((r)->skas.regs)) #define UPT_GS(r) __CHOOSE_MODE(SC_GS(UPT_SC(r)), REGS_GS((r)->skas.regs)) #define UPT_DS(r) __CHOOSE_MODE(SC_DS(UPT_SC(r)), REGS_DS((r)->skas.regs)) #define UPT_ES(r) __CHOOSE_MODE(SC_ES(UPT_SC(r)), REGS_ES((r)->skas.regs)) #define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs)) #define UPT_SS(r) __CHOOSE_MODE(SC_SS(UPT_SC(r)), REGS_SS((r)->skas.regs)) #define UPT_ORIG_RAX(r) \ __CHOOSE_MODE((r)->tt.orig_rax, REGS_ORIG_RAX((r)->skas.regs)) #define UPT_IP(r) __CHOOSE_MODE(SC_IP(UPT_SC(r)), REGS_IP((r)->skas.regs)) #define UPT_SP(r) __CHOOSE_MODE(SC_SP(UPT_SC(r)), REGS_SP((r)->skas.regs)) #define UPT_EFLAGS(r) \ __CHOOSE_MODE(SC_EFLAGS(UPT_SC(r)), REGS_EFLAGS((r)->skas.regs)) #define UPT_SC(r) ((r)->tt.sc) #define UPT_SYSCALL_NR(r) __CHOOSE_MODE((r)->tt.syscall, (r)->skas.syscall) #define UPT_SYSCALL_RET(r) UPT_RAX(r) extern int user_context(unsigned long sp); #define UPT_IS_USER(r) \ CHOOSE_MODE(user_context(UPT_SP(r)), (r)->skas.is_user) #define UPT_SYSCALL_ARG1(r) UPT_RDI(r) #define UPT_SYSCALL_ARG2(r) UPT_RSI(r) #define UPT_SYSCALL_ARG3(r) UPT_RDX(r) #define UPT_SYSCALL_ARG4(r) UPT_R10(r) #define UPT_SYSCALL_ARG5(r) UPT_R8(r) #define UPT_SYSCALL_ARG6(r) UPT_R9(r) struct syscall_args { unsigned long args[6]; }; #define SYSCALL_ARGS(r) ((struct syscall_args) \ { .args = { UPT_SYSCALL_ARG1(r), \ UPT_SYSCALL_ARG2(r), \ UPT_SYSCALL_ARG3(r), \ UPT_SYSCALL_ARG4(r), \ UPT_SYSCALL_ARG5(r), \ UPT_SYSCALL_ARG6(r) } } ) #define UPT_REG(regs, reg) \ ({ unsigned long val; \ switch(reg){ \ case R8: val = UPT_R8(regs); break; \ case R9: val = UPT_R9(regs); break; \ case R10: val = UPT_R10(regs); break; \ case R11: val = UPT_R11(regs); break; \ case R12: val = UPT_R12(regs); break; \ case R13: val = UPT_R13(regs); break; \ case R14: val = UPT_R14(regs); break; \ case R15: val = UPT_R15(regs); break; \ case RIP: val = UPT_IP(regs); break; \ case RSP: val = UPT_SP(regs); break; \ case RAX: val = UPT_RAX(regs); break; \ case RBX: val = UPT_RBX(regs); break; \ case RCX: val = UPT_RCX(regs); break; \ case RDX: val = UPT_RDX(regs); break; \ case RSI: val = UPT_RSI(regs); break; \ case RDI: val = UPT_RDI(regs); break; \ case RBP: val = UPT_RBP(regs); break; \ case ORIG_RAX: val = UPT_ORIG_RAX(regs); break; \ case CS: val = UPT_CS(regs); break; \ case SS: val = UPT_SS(regs); break; \ case FS_BASE: val = UPT_FS_BASE(regs); break; \ case GS_BASE: val = UPT_GS_BASE(regs); break; \ case DS: val = UPT_DS(regs); break; \ case ES: val = UPT_ES(regs); break; \ case FS : val = UPT_FS (regs); break; \ case GS: val = UPT_GS(regs); break; \ case EFLAGS: val = UPT_EFLAGS(regs); break; \ default : \ panic("Bad register in UPT_REG : %d\n", reg); \ val = -1; \ } \ val; \ }) #define UPT_SET(regs, reg, val) \ ({ unsigned long __upt_val = val; \ switch(reg){ \ case R8: UPT_R8(regs) = __upt_val; break; \ case R9: UPT_R9(regs) = __upt_val; break; \ case R10: UPT_R10(regs) = __upt_val; break; \ case R11: UPT_R11(regs) = __upt_val; break; \ case R12: UPT_R12(regs) = __upt_val; break; \ case R13: UPT_R13(regs) = __upt_val; break; \ case R14: UPT_R14(regs) = __upt_val; break; \ case R15: UPT_R15(regs) = __upt_val; break; \ case RIP: UPT_IP(regs) = __upt_val; break; \ case RSP: UPT_SP(regs) = __upt_val; break; \ case RAX: UPT_RAX(regs) = __upt_val; break; \ case RBX: UPT_RBX(regs) = __upt_val; break; \ case RCX: UPT_RCX(regs) = __upt_val; break; \ case RDX: UPT_RDX(regs) = __upt_val; break; \ case RSI: UPT_RSI(regs) = __upt_val; break; \ case RDI: UPT_RDI(regs) = __upt_val; break; \ case RBP: UPT_RBP(regs) = __upt_val; break; \ case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break; \ case CS: UPT_CS(regs) = __upt_val; break; \ case SS: UPT_SS(regs) = __upt_val; break; \ case FS_BASE: UPT_FS_BASE(regs) = __upt_val; break; \ case GS_BASE: UPT_GS_BASE(regs) = __upt_val; break; \ case DS: UPT_DS(regs) = __upt_val; break; \ case ES: UPT_ES(regs) = __upt_val; break; \ case FS: UPT_FS(regs) = __upt_val; break; \ case GS: UPT_GS(regs) = __upt_val; break; \ case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break; \ default : \ panic("Bad register in UPT_SET : %d\n", reg); \ break; \ } \ __upt_val; \ }) #define UPT_SET_SYSCALL_RETURN(r, res) \ CHOOSE_MODE(SC_SET_SYSCALL_RETURN(UPT_SC(r), (res)), \ REGS_SET_SYSCALL_RETURN((r)->skas.regs, (res))) #define UPT_RESTART_SYSCALL(r) \ CHOOSE_MODE(SC_RESTART_SYSCALL(UPT_SC(r)), \ REGS_RESTART_SYSCALL((r)->skas.regs)) #define UPT_SEGV_IS_FIXABLE(r) \ CHOOSE_MODE(SC_SEGV_IS_FIXABLE(UPT_SC(r)), \ REGS_SEGV_IS_FIXABLE(&r->skas)) #define UPT_FAULTINFO(r) \ CHOOSE_MODE((&(r)->tt.faultinfo), (&(r)->skas.faultinfo)) #endif |