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author | Jon Loeliger <jdl@freescale.com> | 2008-01-03 09:46:55 -0600 |
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committer | Jon Loeliger <jdl@freescale.com> | 2008-01-03 09:46:55 -0600 |
commit | 2c3536425d987bf079258973e2acebaaef3e16b6 (patch) | |
tree | 659d06dd33eca4888e1f6d01d046507b76dc2d27 /include/asm-sh/ptrace.h | |
parent | f743931f9b4d4e15c9bdfe726bef033ea1f1402c (diff) | |
parent | ce37422d0002e10490e268392e0c4e3028e52cec (diff) | |
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Merge commit 'wd/master'
Diffstat (limited to 'include/asm-sh/ptrace.h')
-rw-r--r-- | include/asm-sh/ptrace.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h new file mode 100644 index 0000000..14cc1ac --- /dev/null +++ b/include/asm-sh/ptrace.h @@ -0,0 +1,112 @@ +#ifndef __ASM_SH_PTRACE_H +#define __ASM_SH_PTRACE_H + +/* + * Copyright (C) 1999, 2000 Niibe Yutaka + * from linux kernel code. + */ + +/* + * GCC defines register number like this: + * ----------------------------- + * 0 - 15 are integer registers + * 17 - 22 are control/special registers + * 24 - 39 fp registers + * 40 - 47 xd registers + * 48 - fpscr register + * ----------------------------- + * + * We follows above, except: + * 16 --- program counter (PC) + * 22 --- syscall # + * 23 --- floating point communication register + */ +#define REG_REG0 0 +#define REG_REG15 15 + +#define REG_PC 16 + +#define REG_PR 17 +#define REG_SR 18 +#define REG_GBR 19 +#define REG_MACH 20 +#define REG_MACL 21 + +#define REG_SYSCALL 22 + +#define REG_FPREG0 23 +#define REG_FPREG15 38 +#define REG_XFREG0 39 +#define REG_XFREG15 54 + +#define REG_FPSCR 55 +#define REG_FPUL 56 + +/* options set using PTRACE_SETOPTIONS */ +#define PTRACE_O_TRACESYSGOOD 0x00000001 + +/* + * This struct defines the way the registers are stored on the + * kernel stack during a system call or other kernel entry. + */ +struct pt_regs { + unsigned long regs[16]; + unsigned long pc; + unsigned long pr; + unsigned long sr; + unsigned long gbr; + unsigned long mach; + unsigned long macl; + long tra; +}; + +/* + * This struct defines the way the DSP registers are stored on the + * kernel stack during a system call or other kernel entry. + */ +struct pt_dspregs { + unsigned long a1; + unsigned long a0g; + unsigned long a1g; + unsigned long m0; + unsigned long m1; + unsigned long a0; + unsigned long x0; + unsigned long x1; + unsigned long y0; + unsigned long y1; + unsigned long dsr; + unsigned long rs; + unsigned long re; + unsigned long mod; +}; + +#define PTRACE_GETDSPREGS 55 +#define PTRACE_SETDSPREGS 56 + +#ifdef __KERNEL__ +#define user_mode(regs) (((regs)->sr & 0x40000000)==0) +#define instruction_pointer(regs) ((regs)->pc) +extern void show_regs(struct pt_regs *); + +#ifdef CONFIG_SH_DSP +#define task_pt_regs(task) \ + ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ + - sizeof(struct pt_dspregs) - sizeof(unsigned long)) - 1) +#else +#define task_pt_regs(task) \ + ((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \ + - sizeof(unsigned long)) - 1) +#endif + +static inline unsigned long profile_pc(struct pt_regs *regs) +{ + unsigned long pc = instruction_pointer(regs); + + if (pc >= 0xa0000000UL && pc < 0xc0000000UL) + pc -= 0x20000000; + return pc; +} +#endif + +#endif /* __ASM_SH_PTRACE_H */ |