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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/arch/arm64/include/asm/brk-imm.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 * Copyright (C) 2012 ARM Ltd.

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 */

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#ifndef __ASM_BRK_IMM_H

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#define __ASM_BRK_IMM_H

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/*

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 * #imm16 values used for BRK instruction generation

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 * 0x004: for installing kprobes

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 * 0x005: for installing uprobes

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 * 0x006: for kprobe software single-step

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 * 0x007: for kretprobe return

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 * Allowed values for kgdb are 0x400 - 0x7ff

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 * 0x100: for triggering a fault on purpose (reserved)

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 * 0x400: for dynamic BRK instruction

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 * 0x401: for compile time BRK instruction

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 * 0x800: kernel-mode BUG() and WARN() traps

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 * 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff)

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 * 0x55xx: Undefined Behavior Sanitizer traps ('U' << 8)

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 * 0x8xxx: Control-Flow Integrity traps

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 */

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#define KPROBES_BRK_IMM			0x004

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#define UPROBES_BRK_IMM			0x005

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#define KPROBES_BRK_SS_IMM		0x006

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#define KRETPROBES_BRK_IMM		0x007

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#define FAULT_BRK_IMM			0x100

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#define KGDB_DYN_DBG_BRK_IMM		0x400

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#define KGDB_COMPILED_DBG_BRK_IMM	0x401

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#define BUG_BRK_IMM			0x800

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#define KASAN_BRK_IMM			0x900

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#define KASAN_BRK_MASK			0x0ff

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#define UBSAN_BRK_IMM			0x5500

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#define UBSAN_BRK_MASK			0x00ff

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#define CFI_BRK_IMM_TARGET		GENMASK(4, 0)

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#define CFI_BRK_IMM_TYPE		GENMASK(9, 5)

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#define CFI_BRK_IMM_BASE		0x8000

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#define CFI_BRK_IMM_MASK		(CFI_BRK_IMM_TARGET | CFI_BRK_IMM_TYPE)

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#endif

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