1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 ARM Ltd.
4 */
5
6#ifndef __ASM_BRK_IMM_H
7#define __ASM_BRK_IMM_H
8
9/*
10 * #imm16 values used for BRK instruction generation
11 * 0x004: for installing kprobes
12 * 0x005: for installing uprobes
13 * 0x006: for kprobe software single-step
14 * Allowed values for kgdb are 0x400 - 0x7ff
15 * 0x100: for triggering a fault on purpose (reserved)
16 * 0x400: for dynamic BRK instruction
17 * 0x401: for compile time BRK instruction
18 * 0x800: kernel-mode BUG() and WARN() traps
19 * 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff)
20 * 0x55xx: Undefined Behavior Sanitizer traps ('U' << 8)
21 * 0x8xxx: Control-Flow Integrity traps
22 */
23#define KPROBES_BRK_IMM			0x004
24#define UPROBES_BRK_IMM			0x005
25#define KPROBES_BRK_SS_IMM		0x006
26#define FAULT_BRK_IMM			0x100
27#define KGDB_DYN_DBG_BRK_IMM		0x400
28#define KGDB_COMPILED_DBG_BRK_IMM	0x401
29#define BUG_BRK_IMM			0x800
30#define KASAN_BRK_IMM			0x900
31#define KASAN_BRK_MASK			0x0ff
32#define UBSAN_BRK_IMM			0x5500
33#define UBSAN_BRK_MASK			0x00ff
34
35#define CFI_BRK_IMM_TARGET		GENMASK(4, 0)
36#define CFI_BRK_IMM_TYPE		GENMASK(9, 5)
37#define CFI_BRK_IMM_BASE		0x8000
38#define CFI_BRK_IMM_MASK		(CFI_BRK_IMM_TARGET | CFI_BRK_IMM_TYPE)
39
40#endif
41