| Nobuhiro Iwamatsu | 970dc33 | 2007-05-13 20:58:00 +0900 | [diff] [blame] | 1 | #ifndef __ASM_SH_PTRACE_H |
| 2 | #define __ASM_SH_PTRACE_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 1999, 2000 Niibe Yutaka |
| 6 | * from linux kernel code. |
| 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * GCC defines register number like this: |
| 11 | * ----------------------------- |
| 12 | * 0 - 15 are integer registers |
| 13 | * 17 - 22 are control/special registers |
| 14 | * 24 - 39 fp registers |
| 15 | * 40 - 47 xd registers |
| 16 | * 48 - fpscr register |
| 17 | * ----------------------------- |
| 18 | * |
| 19 | * We follows above, except: |
| 20 | * 16 --- program counter (PC) |
| 21 | * 22 --- syscall # |
| 22 | * 23 --- floating point communication register |
| 23 | */ |
| 24 | #define REG_REG0 0 |
| 25 | #define REG_REG15 15 |
| 26 | |
| 27 | #define REG_PC 16 |
| 28 | |
| 29 | #define REG_PR 17 |
| 30 | #define REG_SR 18 |
| 31 | #define REG_GBR 19 |
| 32 | #define REG_MACH 20 |
| 33 | #define REG_MACL 21 |
| 34 | |
| 35 | #define REG_SYSCALL 22 |
| 36 | |
| 37 | #define REG_FPREG0 23 |
| 38 | #define REG_FPREG15 38 |
| 39 | #define REG_XFREG0 39 |
| 40 | #define REG_XFREG15 54 |
| 41 | |
| 42 | #define REG_FPSCR 55 |
| 43 | #define REG_FPUL 56 |
| 44 | |
| 45 | /* options set using PTRACE_SETOPTIONS */ |
| 46 | #define PTRACE_O_TRACESYSGOOD 0x00000001 |
| 47 | |
| 48 | /* |
| 49 | * This struct defines the way the registers are stored on the |
| 50 | * kernel stack during a system call or other kernel entry. |
| 51 | */ |
| 52 | struct pt_regs { |
| 53 | unsigned long regs[16]; |
| 54 | unsigned long pc; |
| 55 | unsigned long pr; |
| 56 | unsigned long sr; |
| 57 | unsigned long gbr; |
| 58 | unsigned long mach; |
| 59 | unsigned long macl; |
| 60 | long tra; |
| 61 | }; |
| 62 | |
| 63 | /* |
| 64 | * This struct defines the way the DSP registers are stored on the |
| 65 | * kernel stack during a system call or other kernel entry. |
| 66 | */ |
| 67 | struct pt_dspregs { |
| 68 | unsigned long a1; |
| 69 | unsigned long a0g; |
| 70 | unsigned long a1g; |
| 71 | unsigned long m0; |
| 72 | unsigned long m1; |
| 73 | unsigned long a0; |
| 74 | unsigned long x0; |
| 75 | unsigned long x1; |
| 76 | unsigned long y0; |
| 77 | unsigned long y1; |
| 78 | unsigned long dsr; |
| 79 | unsigned long rs; |
| 80 | unsigned long re; |
| 81 | unsigned long mod; |
| 82 | }; |
| 83 | |
| 84 | #define PTRACE_GETDSPREGS 55 |
| 85 | #define PTRACE_SETDSPREGS 56 |
| 86 | |
| 87 | #ifdef __KERNEL__ |
| 88 | #define user_mode(regs) (((regs)->sr & 0x40000000)==0) |
| 89 | #define instruction_pointer(regs) ((regs)->pc) |
| 90 | extern void show_regs(struct pt_regs *); |
| 91 | |
| 92 | #ifdef CONFIG_SH_DSP |
| 93 | #define task_pt_regs(task) \ |
| 94 | ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ |
| 95 | - sizeof(struct pt_dspregs) - sizeof(unsigned long)) - 1) |
| 96 | #else |
| 97 | #define task_pt_regs(task) \ |
| 98 | ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ |
| 99 | - sizeof(unsigned long)) - 1) |
| 100 | #endif |
| 101 | |
| 102 | static inline unsigned long profile_pc(struct pt_regs *regs) |
| 103 | { |
| 104 | unsigned long pc = instruction_pointer(regs); |
| 105 | |
| 106 | if (pc >= 0xa0000000UL && pc < 0xc0000000UL) |
| 107 | pc -= 0x20000000; |
| 108 | return pc; |
| 109 | } |
| 110 | #endif |
| 111 | |
| 112 | #endif /* __ASM_SH_PTRACE_H */ |