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 _UAPI_ASM_PTRACE_H
11 #define _UAPI_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  */
33 #ifdef __KERNEL__
34 struct user_pt_regs {
35 #else
36 struct pt_regs {
37 #endif
38 	/* Saved main processor registers. */
39 	__u64 regs[32];
40 
41 	/* Saved special registers. */
42 	__u64 lo;
43 	__u64 hi;
44 	__u64 cp0_epc;
45 	__u64 cp0_badvaddr;
46 	__u64 cp0_status;
47 	__u64 cp0_cause;
48 } __attribute__ ((aligned (8)));
49 
50 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
51 #define PTRACE_GETREGS		12
52 #define PTRACE_SETREGS		13
53 #define PTRACE_GETFPREGS		14
54 #define PTRACE_SETFPREGS		15
55 /* #define PTRACE_GETFPXREGS		18 */
56 /* #define PTRACE_SETFPXREGS		19 */
57 
58 #define PTRACE_OLDSETOPTIONS	21
59 
60 #define PTRACE_GET_THREAD_AREA	25
61 #define PTRACE_SET_THREAD_AREA	26
62 
63 /* Calls to trace a 64bit program from a 32bit program.	 */
64 #define PTRACE_PEEKTEXT_3264	0xc0
65 #define PTRACE_PEEKDATA_3264	0xc1
66 #define PTRACE_POKETEXT_3264	0xc2
67 #define PTRACE_POKEDATA_3264	0xc3
68 #define PTRACE_GET_THREAD_AREA_3264	0xc4
69 
70 /* Read and write watchpoint registers.	 */
71 enum pt_watch_style {
72 	pt_watch_style_mips32,
73 	pt_watch_style_mips64
74 };
75 struct mips32_watch_regs {
76 	unsigned int watchlo[8];
77 	/* Lower 16 bits of watchhi. */
78 	unsigned short watchhi[8];
79 	/* Valid mask and I R W bits.
80 	 * bit 0 -- 1 if W bit is usable.
81 	 * bit 1 -- 1 if R bit is usable.
82 	 * bit 2 -- 1 if I bit is usable.
83 	 * bits 3 - 11 -- Valid watchhi mask bits.
84 	 */
85 	unsigned short watch_masks[8];
86 	/* The number of valid watch register pairs.  */
87 	unsigned int num_valid;
88 } __attribute__((aligned(8)));
89 
90 struct mips64_watch_regs {
91 	unsigned long long watchlo[8];
92 	unsigned short watchhi[8];
93 	unsigned short watch_masks[8];
94 	unsigned int num_valid;
95 } __attribute__((aligned(8)));
96 
97 struct pt_watch_regs {
98 	enum pt_watch_style style;
99 	union {
100 		struct mips32_watch_regs mips32;
101 		struct mips64_watch_regs mips64;
102 	};
103 };
104 
105 #define PTRACE_GET_WATCH_REGS	0xd0
106 #define PTRACE_SET_WATCH_REGS	0xd1
107 
108 
109 #endif /* _UAPI_ASM_PTRACE_H */
110