arch/score/include/asm/ptrace.h

   1 #ifndef _ASM_SCORE_PTRACE_H
   2 #define _ASM_SCORE_PTRACE_H
   3
   4 #define PTRACE_GETREGS          12
   5 #define PTRACE_SETREGS          13
   6
   7 #define PC              32
   8 #define CONDITION       33
   9 #define ECR             34
  10 #define EMA             35
  11 #define CEH             36
  12 #define CEL             37
  13 #define COUNTER         38
  14 #define LDCR            39
  15 #define STCR            40
  16 #define PSR             41
  17
  18 #define SINGLESTEP16_INSN       0x7006
  19 #define SINGLESTEP32_INSN       0x840C8000
  20 #define BREAKPOINT16_INSN       0x7002          /* work on SPG300 */
  21 #define BREAKPOINT32_INSN       0x84048000      /* work on SPG300 */
  22
  23 /* Define instruction mask */
  24 #define INSN32_MASK     0x80008000
  25
  26 #define J32     0x88008000      /* 1_00010_0000000000_1_000000000000000 */
  27 #define J32M    0xFC008000      /* 1_11111_0000000000_1_000000000000000 */
  28
  29 #define B32     0x90008000      /* 1_00100_0000000000_1_000000000000000 */
  30 #define B32M    0xFC008000
  31 #define BL32    0x90008001      /* 1_00100_0000000000_1_000000000000001 */
  32 #define BL32M   B32
  33 #define BR32    0x80008008      /* 1_00000_0000000000_1_00000000_000100_0 */
  34 #define BR32M   0xFFE0807E
  35 #define BRL32   0x80008009      /* 1_00000_0000000000_1_00000000_000100_1 */
  36 #define BRL32M  BR32M
  37
  38 #define B32_SET (J32 | B32 | BL32 | BR32 | BRL32)
  39
  40 #define J16     0x3000          /* 0_011_....... */
  41 #define J16M    0xF000
  42 #define B16     0x4000          /* 0_100_....... */
  43 #define B16M    0xF000
  44 #define BR16    0x0004          /* 0_000.......0100 */
  45 #define BR16M   0xF00F
  46 #define B16_SET (J16 | B16 | BR16)
  47
  48
  49 /*
  50  * This struct defines the way the registers are stored on the stack during a
  51  * system call/exception. As usual the registers k0/k1 aren't being saved.
  52  */
  53 struct pt_regs {
  54         unsigned long pad0[6];  /* stack arguments */
  55         unsigned long orig_r4;
  56         unsigned long orig_r7;
  57         long is_syscall;
  58
  59         unsigned long regs[32];
  60
  61         unsigned long cel;
  62         unsigned long ceh;
  63
  64         unsigned long sr0;      /* cnt */
  65         unsigned long sr1;      /* lcr */
  66         unsigned long sr2;      /* scr */
  67
  68         unsigned long cp0_epc;
  69         unsigned long cp0_ema;
  70         unsigned long cp0_psr;
  71         unsigned long cp0_ecr;
  72         unsigned long cp0_condition;
  73 };
  74
  75 #ifdef __KERNEL__
  76
  77 struct task_struct;
  78
  79 /*
  80  * Does the process account for user or for system time?
  81  */
  82 #define user_mode(regs)         ((regs->cp0_psr & 8) == 8)
  83
  84 #define instruction_pointer(regs)       ((unsigned long)(regs)->cp0_epc)
  85 #define profile_pc(regs)                instruction_pointer(regs)
  86
  87 extern void do_syscall_trace(struct pt_regs *regs, int entryexit);
  88 extern int read_tsk_long(struct task_struct *, unsigned long, unsigned long *);
  89 extern int read_tsk_short(struct task_struct *, unsigned long,
  90                          unsigned short *);
  91
  92 #define arch_has_single_step()  (1)
  93 extern void user_enable_single_step(struct task_struct *);
  94 extern void user_disable_single_step(struct task_struct *);
  95 #endif /* __KERNEL__ */
  96
  97 #endif /* _ASM_SCORE_PTRACE_H */