ptrace.h

 1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 2/*
 3 * Author: Hanlu Li <lihanlu@loongson.cn>
 4 *         Huacai Chen <chenhuacai@loongson.cn>
 5 *
 6 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
 7 */
 8#ifndef _UAPI_ASM_PTRACE_H
 9#define _UAPI_ASM_PTRACE_H
10
11#include <linux/types.h>
12
13/*
14 * For PTRACE_{POKE,PEEK}USR. 0 - 31 are GPRs,
15 * 32 is syscall's original ARG0, 33 is PC, 34 is BADVADDR.
16 */
17#define GPR_BASE	0
18#define GPR_NUM		32
19#define GPR_END		(GPR_BASE + GPR_NUM - 1)
20#define ARG0		(GPR_END + 1)
21#define PC		(GPR_END + 2)
22#define BADVADDR	(GPR_END + 3)
23
24#define NUM_FPU_REGS	32
25
26struct user_pt_regs {
27	/* Main processor registers. */
28	unsigned long regs[32];
29
30	/* Original syscall arg0. */
31	unsigned long orig_a0;
32
33	/* Special CSR registers. */
34	unsigned long csr_era;
35	unsigned long csr_badv;
36	unsigned long reserved[10];
37} __attribute__((aligned(8)));
38
39struct user_fp_state {
40	__u64 fpr[32];
41	__u64 fcc;
42	__u32 fcsr;
43};
44
45struct user_lsx_state {
46	/* 32 registers, 128 bits width per register. */
47	__u64 vregs[32*2];
48};
49
50struct user_lasx_state {
51	/* 32 registers, 256 bits width per register. */
52	__u64 vregs[32*4];
53};
54
55struct user_lbt_state {
56	__u64 scr[4];
57	__u32 eflags;
58	__u32 ftop;
59};
60
61struct user_watch_state {
62	__u64 dbg_info;
63	struct {
64#if __BITS_PER_LONG == 32
65		__u32    addr;
66		__u32    mask;
67#else
68		__u64    addr;
69		__u64    mask;
70#endif
71		__u32    ctrl;
72		__u32    pad;
73	} dbg_regs[8];
74};
75
76struct user_watch_state_v2 {
77	__u64 dbg_info;
78	struct {
79#if __BITS_PER_LONG == 32
80		__u32    addr;
81		__u32    mask;
82#else
83		__u64    addr;
84		__u64    mask;
85#endif
86		__u32    ctrl;
87		__u32    pad;
88	} dbg_regs[14];
89};
90
91#define PTRACE_SYSEMU			0x1f
92#define PTRACE_SYSEMU_SINGLESTEP	0x20
93
94#endif /* _UAPI_ASM_PTRACE_H */