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

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
 */
#ifndef _ASM_PTRACE_H
#define _ASM_PTRACE_H

#ifdef CONFIG_64BIT
#define __ARCH_WANT_COMPAT_SYS_PTRACE
#endif

/* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
#define FPR_BASE	32
#define PC		64
#define CAUSE		65
#define BADVADDR	66
#define MMHI		67
#define MMLO		68
#define FPC_CSR		69
#define FPC_EIR		70
#define DSP_BASE	71		/* 3 more hi / lo register pairs */
#define DSP_CONTROL	77
#define ACX		78

/*
 * This struct defines the way the registers are stored on the stack during a
 * system call/exception. As usual the registers k0/k1 aren't being saved.
 */
struct pt_regs {
#ifdef CONFIG_32BIT
	/* Pad bytes for argument save space on the stack. */
	unsigned long pad0[6];
#endif

	/* Saved main processor registers. */
	unsigned long regs[32];

	/* Saved special registers. */
	unsigned long cp0_status;
	unsigned long hi;
	unsigned long lo;
#ifdef CONFIG_CPU_HAS_SMARTMIPS
	unsigned long acx;
#endif
	unsigned long cp0_badvaddr;
	unsigned long cp0_cause;
	unsigned long cp0_epc;
#ifdef CONFIG_MIPS_MT_SMTC
	unsigned long cp0_tcstatus;
#endif /* CONFIG_MIPS_MT_SMTC */
} __attribute__ ((aligned (8)));

/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
#define PTRACE_GETREGS		12
#define PTRACE_SETREGS		13
#define PTRACE_GETFPREGS		14
#define PTRACE_SETFPREGS		15
/* #define PTRACE_GETFPXREGS		18 */
/* #define PTRACE_SETFPXREGS		19 */

#define PTRACE_OLDSETOPTIONS	21

#define PTRACE_GET_THREAD_AREA	25
#define PTRACE_SET_THREAD_AREA	26

/* Calls to trace a 64bit program from a 32bit program.  */
#define PTRACE_PEEKTEXT_3264	0xc0
#define PTRACE_PEEKDATA_3264	0xc1
#define PTRACE_POKETEXT_3264	0xc2
#define PTRACE_POKEDATA_3264	0xc3
#define PTRACE_GET_THREAD_AREA_3264	0xc4

#ifdef __KERNEL__

#include <linux/linkage.h>
#include <asm/isadep.h>

/*
 * Does the process account for user or for system time?
 */
#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)

#define instruction_pointer(regs) ((regs)->cp0_epc)
#define profile_pc(regs) instruction_pointer(regs)

extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);

extern NORET_TYPE void die(const char *, const struct pt_regs *) ATTRIB_NORET;

static inline void die_if_kernel(const char *str, const struct pt_regs *regs)
{
	if (unlikely(!user_mode(regs)))
		die(str, regs);
}

#endif

#endif /* _ASM_PTRACE_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
	5	*
	6	* Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
	7	* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
	8	*/
	9	#ifndef _ASM_PTRACE_H
	10	#define _ASM_PTRACE_H
	11
5d9a76cd TB	12	#ifdef CONFIG_64BIT
	13	#define __ARCH_WANT_COMPAT_SYS_PTRACE
	14	#endif
1da177e4	15
1da177e4 LT	16	/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
	17	#define FPR_BASE 32
	18	#define PC 64
	19	#define CAUSE 65
	20	#define BADVADDR 66
	21	#define MMHI 67
	22	#define MMLO 68
	23	#define FPC_CSR 69
	24	#define FPC_EIR 70
e50c0a8f RB	25	#define DSP_BASE 71 /* 3 more hi / lo register pairs */
e50c0a8f RB	26	#define DSP_CONTROL 77
9693a853	27	#define ACX 78
1da177e4 LT	28
	29	/*
	30	* This struct defines the way the registers are stored on the stack during a
	31	* system call/exception. As usual the registers k0/k1 aren't being saved.
	32	*/
	33	struct pt_regs {
875d43e7	34	#ifdef CONFIG_32BIT
1da177e4 LT	35	/* Pad bytes for argument save space on the stack. */
	36	unsigned long pad0[6];
	37	#endif
	38
	39	/* Saved main processor registers. */
	40	unsigned long regs[32];
	41
	42	/* Saved special registers. */
	43	unsigned long cp0_status;
1da177e4	44	unsigned long hi;
e50c0a8f	45	unsigned long lo;
9693a853 FBH	46	#ifdef CONFIG_CPU_HAS_SMARTMIPS
	47	unsigned long acx;
	48	#endif
1da177e4 LT	49	unsigned long cp0_badvaddr;
	50	unsigned long cp0_cause;
	51	unsigned long cp0_epc;
41c594ab RB	52	#ifdef CONFIG_MIPS_MT_SMTC
41c594ab RB	53	unsigned long cp0_tcstatus;
41c594ab	54	#endif /* CONFIG_MIPS_MT_SMTC */
0e90f49b	55	} __attribute__ ((aligned (8)));
1da177e4 LT	56
1da177e4 LT	57	/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
ea3d710f DJ	58	#define PTRACE_GETREGS 12
	59	#define PTRACE_SETREGS 13
	60	#define PTRACE_GETFPREGS 14
	61	#define PTRACE_SETFPREGS 15
1da177e4 LT	62	/* #define PTRACE_GETFPXREGS 18 */
	63	/* #define PTRACE_SETFPXREGS 19 */
	64
	65	#define PTRACE_OLDSETOPTIONS 21
	66
	67	#define PTRACE_GET_THREAD_AREA 25
	68	#define PTRACE_SET_THREAD_AREA 26
	69
ea3d710f DJ	70	/* Calls to trace a 64bit program from a 32bit program. */
	71	#define PTRACE_PEEKTEXT_3264 0xc0
	72	#define PTRACE_PEEKDATA_3264 0xc1
	73	#define PTRACE_POKETEXT_3264 0xc2
	74	#define PTRACE_POKEDATA_3264 0xc3
	75	#define PTRACE_GET_THREAD_AREA_3264 0xc4
	76
1da177e4 LT	77	#ifdef __KERNEL__
	78
	79	#include <linux/linkage.h>
8f9a2b32	80	#include <asm/isadep.h>
1da177e4 LT	81
	82	/*
	83	* Does the process account for user or for system time?
	84	*/
	85	#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)
	86
	87	#define instruction_pointer(regs) ((regs)->cp0_epc)
	88	#define profile_pc(regs) instruction_pointer(regs)
	89
1da177e4 LT	90	extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);
1da177e4 LT	91
eae23f2c	92	extern NORET_TYPE void die(const char , const struct pt_regs ) ATTRIB_NORET;
2d911e9a	93
eae23f2c	94	static inline void die_if_kernel(const char str, const struct pt_regs regs)
2d911e9a RB	95	{
	96	if (unlikely(!user_mode(regs)))
	97	die(str, regs);
	98	}
	99
1da177e4 LT	100	#endif
	101
	102	#endif /* _ASM_PTRACE_H */