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-rw-r--r--arch/mips/include/asm/ptrace.h102
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diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
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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
12#ifdef CONFIG_64BIT
13#define __ARCH_WANT_COMPAT_SYS_PTRACE
14#endif
15
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
25#define DSP_BASE 71 /* 3 more hi / lo register pairs */
26#define DSP_CONTROL 77
27#define ACX 78
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 */
33struct pt_regs {
34#ifdef CONFIG_32BIT
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;
44 unsigned long hi;
45 unsigned long lo;
46#ifdef CONFIG_CPU_HAS_SMARTMIPS
47 unsigned long acx;
48#endif
49 unsigned long cp0_badvaddr;
50 unsigned long cp0_cause;
51 unsigned long cp0_epc;
52#ifdef CONFIG_MIPS_MT_SMTC
53 unsigned long cp0_tcstatus;
54#endif /* CONFIG_MIPS_MT_SMTC */
55} __attribute__ ((aligned (8)));
56
57/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
58#define PTRACE_GETREGS 12
59#define PTRACE_SETREGS 13
60#define PTRACE_GETFPREGS 14
61#define PTRACE_SETFPREGS 15
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
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
77#ifdef __KERNEL__
78
79#include <linux/linkage.h>
80#include <asm/isadep.h>
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
90extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);
91
92extern NORET_TYPE void die(const char *, const struct pt_regs *) ATTRIB_NORET;
93
94static inline void die_if_kernel(const char *str, const struct pt_regs *regs)
95{
96 if (unlikely(!user_mode(regs)))
97 die(str, regs);
98}
99
100#endif
101
102#endif /* _ASM_PTRACE_H */