arch/um/include/sysdep-x86_64/ptrace.h

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