[linux.git] / include / asm-sh / ptrace.h

#ifndef __ASM_SH_PTRACE_H
#define __ASM_SH_PTRACE_H

/*
 * Copyright (C) 1999, 2000  Niibe Yutaka
 *
 */

/*
 * 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

/*
 * 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 */
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASM_SH_PTRACE_H
	2	#define __ASM_SH_PTRACE_H
	3
1da177e4 LT	4	/*
	5	* Copyright (C) 1999, 2000 Niibe Yutaka
	6	*
	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
1da177e4 LT	45	/*
	46	* This struct defines the way the registers are stored on the
	47	* kernel stack during a system call or other kernel entry.
	48	*/
	49	struct pt_regs {
	50	unsigned long regs[16];
	51	unsigned long pc;
	52	unsigned long pr;
	53	unsigned long sr;
	54	unsigned long gbr;
	55	unsigned long mach;
	56	unsigned long macl;
	57	long tra;
	58	};
	59
	60	/*
	61	* This struct defines the way the DSP registers are stored on the
	62	* kernel stack during a system call or other kernel entry.
	63	*/
	64	struct pt_dspregs {
	65	unsigned long a1;
	66	unsigned long a0g;
	67	unsigned long a1g;
	68	unsigned long m0;
	69	unsigned long m1;
	70	unsigned long a0;
	71	unsigned long x0;
	72	unsigned long x1;
	73	unsigned long y0;
	74	unsigned long y1;
	75	unsigned long dsr;
	76	unsigned long rs;
	77	unsigned long re;
	78	unsigned long mod;
	79	};
	80
	81	#define PTRACE_GETDSPREGS 55
	82	#define PTRACE_SETDSPREGS 56
	83
	84	#ifdef __KERNEL__
	85	#define user_mode(regs) (((regs)->sr & 0x40000000)==0)
	86	#define instruction_pointer(regs) ((regs)->pc)
	87	extern void show_regs(struct pt_regs *);
	88
3cf0f4ec AV	89	#ifdef CONFIG_SH_DSP
3cf0f4ec AV	90	#define task_pt_regs(task) \
308a792f	91	((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \
3cf0f4ec AV	92	- sizeof(struct pt_dspregs) - sizeof(unsigned long)) - 1)
	93	#else
	94	#define task_pt_regs(task) \
308a792f	95	((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \
3cf0f4ec AV	96	- sizeof(unsigned long)) - 1)
	97	#endif
	98
1da177e4 LT	99	static inline unsigned long profile_pc(struct pt_regs *regs)
	100	{
	101	unsigned long pc = instruction_pointer(regs);
	102
	103	if (pc >= 0xa0000000UL && pc < 0xc0000000UL)
	104	pc -= 0x20000000;
	105	return pc;
	106	}
	107	#endif
	108
	109	#endif /* __ASM_SH_PTRACE_H */