1/* $NetBSD: ptrace.h,v 1.6 2024/05/03 07:11:14 skrll Exp $ */
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matt Thomas of 3am Software Foundry.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _RISCV_PTRACE_H_
33#define _RISCV_PTRACE_H_
34
35/*
36 * RISCV-dependent ptrace definitions.
37 * Note that PT_STEP is _not_ supported.
38 */
39#define PT_GETREGS (PT_FIRSTMACH + 0)
40#define PT_SETREGS (PT_FIRSTMACH + 1)
41#define PT_GETFPREGS (PT_FIRSTMACH + 2)
42#define PT_SETFPREGS (PT_FIRSTMACH + 3)
43
44#define PT_MACHDEP_STRINGS \
45 "PT_GETREGS", \
46 "PT_SETREGS", \
47 "PT_GETFPREGS", \
48 "PT_SETFPREGS"
49
50#include <machine/reg.h>
51#define PTRACE_REG_PC(r) (r)->r_pc
52#define PTRACE_REG_FP(r) (r)->r_reg[_X_S0]
53#define PTRACE_REG_SET_PC(r, v) (r)->r_pc = (v)
54#define PTRACE_REG_SP(r) (r)->r_reg[_X_SP]
55#define PTRACE_REG_INTRV(r) (r)->r_reg[_X_A0]
56
57#define PTRACE_ILLEGAL_ASM __asm __volatile("c.unimp" ::: "memory")
58
59#define PTRACE_BREAKPOINT ((const uint8_t[]) { 0x02, 0x90 })
60#define PTRACE_BREAKPOINT_ASM __asm __volatile("c.ebreak" ::: "memory")
61#define PTRACE_BREAKPOINT_SIZE 2
62
63#endif /* _RISCV_PTRACE_H_ */