[mirror_ubuntu-bionic-kernel.git] / arch / sh / include / asm / ptrace.h

#ifndef __ASM_SH_PTRACE_H
#define __ASM_SH_PTRACE_H

/*
 * Copyright (C) 1999, 2000  Niibe Yutaka
 *
 */
#if defined(__SH5__)
struct pt_regs {
	unsigned long long pc;
	unsigned long long sr;
	long long syscall_nr;
	unsigned long long regs[63];
	unsigned long long tregs[8];
	unsigned long long pad[2];
};
#else
/*
 * 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;
};
#endif

#define PTRACE_GETREGS		12	/* General registers */
#define PTRACE_SETREGS		13

#define PTRACE_GETFPREGS	14	/* FPU registers */
#define PTRACE_SETFPREGS	15

#define PTRACE_GETFDPIC		31	/* get the ELF fdpic loadmap address */

#define PTRACE_GETFDPIC_EXEC	0	/* [addr] request the executable loadmap */
#define PTRACE_GETFDPIC_INTERP	1	/* [addr] request the interpreter loadmap */

#define	PTRACE_GETDSPREGS	55	/* DSP registers */
#define	PTRACE_SETDSPREGS	56

#define PT_TEXT_END_ADDR	240
#define PT_TEXT_ADDR		244	/* &(struct user)->start_code */
#define PT_DATA_ADDR		248	/* &(struct user)->start_data */
#define PT_TEXT_LEN		252

#ifdef __KERNEL__
#include <asm/addrspace.h>
#include <asm/page.h>
#include <asm/system.h>

#define user_mode(regs)			(((regs)->sr & 0x40000000)==0)
#define instruction_pointer(regs)	((unsigned long)(regs)->pc)

extern void show_regs(struct pt_regs *);

/*
 * These are defined as per linux/ptrace.h.
 */
struct task_struct;

#define arch_has_single_step()	(1)
extern void user_enable_single_step(struct task_struct *);
extern void user_disable_single_step(struct task_struct *);

struct perf_event;
struct perf_sample_data;

extern void ptrace_triggered(struct perf_event *bp, int nmi,
		      struct perf_sample_data *data, struct pt_regs *regs);

#define task_pt_regs(task) \
	((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE) - 1)

static inline unsigned long profile_pc(struct pt_regs *regs)
{
	unsigned long pc = instruction_pointer(regs);

#ifdef CONFIG_UNCACHED_MAPPING
	/*
	 * If PC points in to the uncached mapping, fix it up and hand
	 * back the cached equivalent.
	 */
	if ((pc >= (memory_start + cached_to_uncached)) &&
	    (pc <  (memory_start + cached_to_uncached + uncached_size)))
		pc -= cached_to_uncached;
#endif

	return pc;
}
#endif /* __KERNEL__ */

#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	*/
f22ab814	8	#if defined(__SH5__)
33f242ed PM	9	struct pt_regs {
	10	unsigned long long pc;
	11	unsigned long long sr;
ecd4ca52	12	long long syscall_nr;
33f242ed PM	13	unsigned long long regs[63];
	14	unsigned long long tregs[8];
	15	unsigned long long pad[2];
	16	};
	17	#else
1da177e4 LT	18	/*
	19	* GCC defines register number like this:
	20	* -----------------------------
	21	* 0 - 15 are integer registers
	22	* 17 - 22 are control/special registers
	23	* 24 - 39 fp registers
	24	* 40 - 47 xd registers
	25	* 48 - fpscr register
	26	* -----------------------------
	27	*
	28	* We follows above, except:
	29	* 16 --- program counter (PC)
	30	* 22 --- syscall #
	31	* 23 --- floating point communication register
	32	*/
	33	#define REG_REG0 0
	34	#define REG_REG15 15
	35
	36	#define REG_PC 16
	37
	38	#define REG_PR 17
	39	#define REG_SR 18
33f242ed	40	#define REG_GBR 19
1da177e4 LT	41	#define REG_MACH 20
	42	#define REG_MACL 21
	43
	44	#define REG_SYSCALL 22
	45
	46	#define REG_FPREG0 23
	47	#define REG_FPREG15 38
	48	#define REG_XFREG0 39
	49	#define REG_XFREG15 54
	50
	51	#define REG_FPSCR 55
	52	#define REG_FPUL 56
	53
1da177e4 LT	54	/*
	55	* This struct defines the way the registers are stored on the
	56	* kernel stack during a system call or other kernel entry.
	57	*/
	58	struct pt_regs {
	59	unsigned long regs[16];
	60	unsigned long pc;
	61	unsigned long pr;
	62	unsigned long sr;
	63	unsigned long gbr;
	64	unsigned long mach;
	65	unsigned long macl;
	66	long tra;
	67	};
	68
	69	/*
	70	* This struct defines the way the DSP registers are stored on the
	71	* kernel stack during a system call or other kernel entry.
	72	*/
	73	struct pt_dspregs {
	74	unsigned long a1;
	75	unsigned long a0g;
	76	unsigned long a1g;
	77	unsigned long m0;
	78	unsigned long m1;
	79	unsigned long a0;
	80	unsigned long x0;
	81	unsigned long x1;
	82	unsigned long y0;
	83	unsigned long y1;
	84	unsigned long dsr;
	85	unsigned long rs;
	86	unsigned long re;
	87	unsigned long mod;
	88	};
dd76279b	89	#endif
1da177e4	90
934135c1 PM	91	#define PTRACE_GETREGS 12 /* General registers */
	92	#define PTRACE_SETREGS 13
	93
	94	#define PTRACE_GETFPREGS 14 /* FPU registers */
	95	#define PTRACE_SETFPREGS 15
	96
3bc24a1a PM	97	#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */
	98
	99	#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */
	100	#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */
	101
934135c1	102	#define PTRACE_GETDSPREGS 55 /* DSP registers */
1da177e4 LT	103	#define PTRACE_SETDSPREGS 56
1da177e4 LT	104
b0f3ae03 PM	105	#define PT_TEXT_END_ADDR 240
	106	#define PT_TEXT_ADDR 244 /* &(struct user)->start_code */
	107	#define PT_DATA_ADDR 248 /* &(struct user)->start_data */
be6514c6 KB	108	#define PT_TEXT_LEN 252
be6514c6 KB	109
1da177e4	110	#ifdef __KERNEL__
33f242ed	111	#include <asm/addrspace.h>
b0f3ae03 PM	112	#include <asm/page.h>
b0f3ae03 PM	113	#include <asm/system.h>
33f242ed PM	114
33f242ed PM	115	#define user_mode(regs) (((regs)->sr & 0x40000000)==0)
5a4f7c66	116	#define instruction_pointer(regs) ((unsigned long)(regs)->pc)
33f242ed	117
1da177e4 LT	118	extern void show_regs(struct pt_regs *);
1da177e4 LT	119
c459dbf2 PM	120	/*
	121	* These are defined as per linux/ptrace.h.
	122	*/
	123	struct task_struct;
	124
	125	#define arch_has_single_step() (1)
	126	extern void user_enable_single_step(struct task_struct *);
	127	extern void user_disable_single_step(struct task_struct *);
	128
34d0b5af PM	129	struct perf_event;
	130	struct perf_sample_data;
	131
	132	extern void ptrace_triggered(struct perf_event *bp, int nmi,
	133	struct perf_sample_data data, struct pt_regs regs);
	134
3cf0f4ec	135	#define task_pt_regs(task) \
4f099ebb	136	((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE) - 1)
3cf0f4ec	137
1da177e4 LT	138	static inline unsigned long profile_pc(struct pt_regs *regs)
	139	{
	140	unsigned long pc = instruction_pointer(regs);
	141
b0f3ae03 PM	142	#ifdef CONFIG_UNCACHED_MAPPING
	143	/*
	144	* If PC points in to the uncached mapping, fix it up and hand
	145	* back the cached equivalent.
	146	*/
	147	if ((pc >= (memory_start + cached_to_uncached)) &&
	148	(pc < (memory_start + cached_to_uncached + uncached_size)))
	149	pc -= cached_to_uncached;
33f242ed PM	150	#endif
33f242ed PM	151
1da177e4 LT	152	return pc;
1da177e4 LT	153	}
33f242ed	154	#endif /* __KERNEL__ */
1da177e4 LT	155
1da177e4 LT	156	#endif /* __ASM_SH_PTRACE_H */