tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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#include <linux/config.h>
13
14#include <asm/isadep.h>
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
26/*
27 * This struct defines the way the registers are stored on the stack during a
28 * system call/exception. As usual the registers k0/k1 aren't being saved.
29 */
30struct pt_regs {
31#ifdef CONFIG_32BIT
32 /* Pad bytes for argument save space on the stack. */
33 unsigned long pad0[6];
34#endif
35
36 /* Saved main processor registers. */
37 unsigned long regs[32];
38
39 /* Saved special registers. */
40 unsigned long cp0_status;
41 unsigned long lo;
42 unsigned long hi;
43 unsigned long cp0_badvaddr;
44 unsigned long cp0_cause;
45 unsigned long cp0_epc;
46};
47
48/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
49/* #define PTRACE_GETREGS 12 */
50/* #define PTRACE_SETREGS 13 */
51/* #define PTRACE_GETFPREGS 14 */
52/* #define PTRACE_SETFPREGS 15 */
53/* #define PTRACE_GETFPXREGS 18 */
54/* #define PTRACE_SETFPXREGS 19 */
55
56#define PTRACE_OLDSETOPTIONS 21
57
58#define PTRACE_GET_THREAD_AREA 25
59#define PTRACE_SET_THREAD_AREA 26
60
61#ifdef __KERNEL__
62
63#include <linux/linkage.h>
64
65/*
66 * Does the process account for user or for system time?
67 */
68#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)
69
70#define instruction_pointer(regs) ((regs)->cp0_epc)
71#define profile_pc(regs) instruction_pointer(regs)
72
73extern void show_regs(struct pt_regs *);
74
75extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);
76
77#endif
78
79#endif /* _ASM_PTRACE_H */