1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*
* 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
/* 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 */
#ifdef CONFIG_CPU_CAVIUM_OCTEON
unsigned long long mpl[3]; /* MTM{0,1,2} */
unsigned long long mtp[3]; /* MTP{0,1,2} */
#endif
} __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
/* Read and write watchpoint registers. */
enum pt_watch_style {
pt_watch_style_mips32,
pt_watch_style_mips64
};
struct mips32_watch_regs {
unsigned int watchlo[8];
/* Lower 16 bits of watchhi. */
unsigned short watchhi[8];
/* Valid mask and I R W bits.
* bit 0 -- 1 if W bit is usable.
* bit 1 -- 1 if R bit is usable.
* bit 2 -- 1 if I bit is usable.
* bits 3 - 11 -- Valid watchhi mask bits.
*/
unsigned short watch_masks[8];
/* The number of valid watch register pairs. */
unsigned int num_valid;
} __attribute__((aligned(8)));
struct mips64_watch_regs {
unsigned long long watchlo[8];
unsigned short watchhi[8];
unsigned short watch_masks[8];
unsigned int num_valid;
} __attribute__((aligned(8)));
struct pt_watch_regs {
enum pt_watch_style style;
union {
struct mips32_watch_regs mips32;
struct mips64_watch_regs mips64;
};
};
#define PTRACE_GET_WATCH_REGS 0xd0
#define PTRACE_SET_WATCH_REGS 0xd1
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <linux/linkage.h>
#include <linux/types.h>
#include <asm/isadep.h>
struct task_struct;
extern int ptrace_getregs(struct task_struct *child, __s64 __user *data);
extern int ptrace_setregs(struct task_struct *child, __s64 __user *data);
extern int ptrace_getfpregs(struct task_struct *child, __u32 __user *data);
extern int ptrace_setfpregs(struct task_struct *child, __u32 __user *data);
extern int ptrace_get_watch_regs(struct task_struct *child,
struct pt_watch_regs __user *addr);
extern int ptrace_set_watch_regs(struct task_struct *child,
struct pt_watch_regs __user *addr);
/*
* Does the process account for user or for system time?
*/
#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)
#define regs_return_value(_regs) ((_regs)->regs[2])
#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 *, struct pt_regs *) ATTRIB_NORET;
static inline void die_if_kernel(const char *str, struct pt_regs *regs)
{
if (unlikely(!user_mode(regs)))
die(str, regs);
}
#endif
#endif /* _ASM_PTRACE_H */
|
