arch/m68k/include/asm/ptrace.h

   1 #ifndef _M68K_PTRACE_H
   2 #define _M68K_PTRACE_H
   3
   4 #define PT_D1      0
   5 #define PT_D2      1
   6 #define PT_D3      2
   7 #define PT_D4      3
   8 #define PT_D5      4
   9 #define PT_D6      5
  10 #define PT_D7      6
  11 #define PT_A0      7
  12 #define PT_A1      8
  13 #define PT_A2      9
  14 #define PT_A3      10
  15 #define PT_A4      11
  16 #define PT_A5      12
  17 #define PT_A6      13
  18 #define PT_D0      14
  19 #define PT_USP     15
  20 #define PT_ORIG_D0 16
  21 #define PT_SR      17
  22 #define PT_PC      18
  23
  24 #ifndef __ASSEMBLY__
  25
  26 /* this struct defines the way the registers are stored on the
  27    stack during a system call. */
  28
  29 struct pt_regs {
  30   long     d1;
  31   long     d2;
  32   long     d3;
  33   long     d4;
  34   long     d5;
  35   long     a0;
  36   long     a1;
  37   long     a2;
  38   long     d0;
  39   long     orig_d0;
  40   long     stkadj;
  41 #ifdef CONFIG_COLDFIRE
  42   unsigned format :  4; /* frame format specifier */
  43   unsigned vector : 12; /* vector offset */
  44   unsigned short sr;
  45   unsigned long  pc;
  46 #else
  47   unsigned short sr;
  48   unsigned long  pc;
  49   unsigned format :  4; /* frame format specifier */
  50   unsigned vector : 12; /* vector offset */
  51 #endif
  52 };
  53
  54 /*
  55  * This is the extended stack used by signal handlers and the context
  56  * switcher: it's pushed after the normal "struct pt_regs".
  57  */
  58 struct switch_stack {
  59         unsigned long  d6;
  60         unsigned long  d7;
  61         unsigned long  a3;
  62         unsigned long  a4;
  63         unsigned long  a5;
  64         unsigned long  a6;
  65         unsigned long  retpc;
  66 };
  67
  68 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
  69 #define PTRACE_GETREGS            12
  70 #define PTRACE_SETREGS            13
  71 #define PTRACE_GETFPREGS          14
  72 #define PTRACE_SETFPREGS          15
  73
  74 #define PTRACE_GET_THREAD_AREA    25
  75
  76 #define PTRACE_SINGLEBLOCK      33      /* resume execution until next branch */
  77
  78 #ifdef __KERNEL__
  79
  80 #ifndef PS_S
  81 #define PS_S  (0x2000)
  82 #define PS_M  (0x1000)
  83 #endif
  84
  85 #define user_mode(regs) (!((regs)->sr & PS_S))
  86 #define instruction_pointer(regs) ((regs)->pc)
  87 #define profile_pc(regs) instruction_pointer(regs)
  88
  89 #define arch_has_single_step()  (1)
  90
  91 #ifdef CONFIG_MMU
  92 #define arch_has_block_step()   (1)
  93 #endif
  94
  95 #endif /* __KERNEL__ */
  96 #endif /* __ASSEMBLY__ */
  97 #endif /* _M68K_PTRACE_H */