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 * 0x007: for kretprobe return 15 * Allowed values for kgdb are 0x400 - 0x7ff 16 * 0x100: for triggering a fault on purpose (reserved) 17 * 0x400: for dynamic BRK instruction 18 * 0x401: for compile time BRK instruction 19 * 0x800: kernel-mode BUG() and WARN() traps 20 * 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff) 21 * 0x55xx: Undefined Behavior Sanitizer traps ('U' << 8) 22 * 0x8xxx: Control-Flow Integrity traps 23 */ 24 #define KPROBES_BRK_IMM 0x004 25 #define UPROBES_BRK_IMM 0x005 26 #define KPROBES_BRK_SS_IMM 0x006 27 #define KRETPROBES_BRK_IMM 0x007 28 #define FAULT_BRK_IMM 0x100 29 #define KGDB_DYN_DBG_BRK_IMM 0x400 30 #define KGDB_COMPILED_DBG_BRK_IMM 0x401 31 #define BUG_BRK_IMM 0x800 32 #define KASAN_BRK_IMM 0x900 33 #define KASAN_BRK_MASK 0x0ff 34 #define UBSAN_BRK_IMM 0x5500 35 #define UBSAN_BRK_MASK 0x00ff 36 37 #define CFI_BRK_IMM_TARGET GENMASK(4, 0) 38 #define CFI_BRK_IMM_TYPE GENMASK(9, 5) 39 #define CFI_BRK_IMM_BASE 0x8000 40 #define CFI_BRK_IMM_MASK (CFI_BRK_IMM_TARGET | CFI_BRK_IMM_TYPE) 41 42 #endif 43