1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * This file is subject to the terms and conditions of the GNU General Public
4 * License. See the file "COPYING" in the main directory of this archive
5 * for more details.
6 *
7 * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
9 */
10#ifndef _ASM_PTRACE_H
11#define _ASM_PTRACE_H
12
13#include <linux/types.h>
14
15/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
16#define FPR_BASE 32
17#define PC 64
18#define CAUSE 65
19#define BADVADDR 66
20#define MMHI 67
21#define MMLO 68
22#define FPC_CSR 69
23#define FPC_EIR 70
24#define DSP_BASE 71 /* 3 more hi / lo register pairs */
25#define DSP_CONTROL 77
26#define ACX 78
27
28/*
29 * This struct defines the registers as used by PTRACE_{GET,SET}REGS. The
30 * format is the same for both 32- and 64-bit processes. Registers for 32-bit
31 * processes are sign extended.
32 */
33struct pt_regs {
34 /* Saved main processor registers. */
35 __u64 regs[32];
36
37 /* Saved special registers. */
38 __u64 lo;
39 __u64 hi;
40 __u64 cp0_epc;
41 __u64 cp0_badvaddr;
42 __u64 cp0_status;
43 __u64 cp0_cause;
44} __attribute__ ((aligned (8)));
45
46/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
47#define PTRACE_GETREGS 12
48#define PTRACE_SETREGS 13
49#define PTRACE_GETFPREGS 14
50#define PTRACE_SETFPREGS 15
51/* #define PTRACE_GETFPXREGS 18 */
52/* #define PTRACE_SETFPXREGS 19 */
53
54#define PTRACE_OLDSETOPTIONS 21
55
56#define PTRACE_GET_THREAD_AREA 25
57#define PTRACE_SET_THREAD_AREA 26
58
59/* Calls to trace a 64bit program from a 32bit program. */
60#define PTRACE_PEEKTEXT_3264 0xc0
61#define PTRACE_PEEKDATA_3264 0xc1
62#define PTRACE_POKETEXT_3264 0xc2
63#define PTRACE_POKEDATA_3264 0xc3
64#define PTRACE_GET_THREAD_AREA_3264 0xc4
65
66/* Read and write watchpoint registers. */
67enum pt_watch_style {
68 pt_watch_style_mips32,
69 pt_watch_style_mips64
70};
71struct mips32_watch_regs {
72 unsigned int watchlo[8];
73 /* Lower 16 bits of watchhi. */
74 unsigned short watchhi[8];
75 /* Valid mask and I R W bits.
76 * bit 0 -- 1 if W bit is usable.
77 * bit 1 -- 1 if R bit is usable.
78 * bit 2 -- 1 if I bit is usable.
79 * bits 3 - 11 -- Valid watchhi mask bits.
80 */
81 unsigned short watch_masks[8];
82 /* The number of valid watch register pairs. */
83 unsigned int num_valid;
84} __attribute__((aligned(8)));
85
86struct mips64_watch_regs {
87 unsigned long long watchlo[8];
88 unsigned short watchhi[8];
89 unsigned short watch_masks[8];
90 unsigned int num_valid;
91} __attribute__((aligned(8)));
92
93struct pt_watch_regs {
94 enum pt_watch_style style;
95 union {
96 struct mips32_watch_regs mips32;
97 struct mips64_watch_regs mips64;
98 };
99};
100
101#define PTRACE_GET_WATCH_REGS 0xd0
102#define PTRACE_SET_WATCH_REGS 0xd1
103
104
105#endif /* _ASM_PTRACE_H */