diff options
Diffstat (limited to 'arch/arm64/include/asm/brk-imm.h')
| -rw-r--r-- | arch/arm64/include/asm/brk-imm.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/brk-imm.h b/arch/arm64/include/asm/brk-imm.h new file mode 100644 index 000000000..1abdcd508 --- /dev/null +++ b/arch/arm64/include/asm/brk-imm.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2012 ARM Ltd. + */ + +#ifndef __ASM_BRK_IMM_H +#define __ASM_BRK_IMM_H + +/* + * #imm16 values used for BRK instruction generation + * 0x004: for installing kprobes + * 0x005: for installing uprobes + * 0x006: for kprobe software single-step + * Allowed values for kgdb are 0x400 - 0x7ff + * 0x100: for triggering a fault on purpose (reserved) + * 0x400: for dynamic BRK instruction + * 0x401: for compile time BRK instruction + * 0x800: kernel-mode BUG() and WARN() traps + * 0x9xx: tag-based KASAN trap (allowed values 0x900 - 0x9ff) + * 0x55xx: Undefined Behavior Sanitizer traps ('U' << 8) + * 0x8xxx: Control-Flow Integrity traps + */ +#define KPROBES_BRK_IMM 0x004 +#define UPROBES_BRK_IMM 0x005 +#define KPROBES_BRK_SS_IMM 0x006 +#define FAULT_BRK_IMM 0x100 +#define KGDB_DYN_DBG_BRK_IMM 0x400 +#define KGDB_COMPILED_DBG_BRK_IMM 0x401 +#define BUG_BRK_IMM 0x800 +#define KASAN_BRK_IMM 0x900 +#define KASAN_BRK_MASK 0x0ff +#define UBSAN_BRK_IMM 0x5500 +#define UBSAN_BRK_MASK 0x00ff + +#define CFI_BRK_IMM_TARGET GENMASK(4, 0) +#define CFI_BRK_IMM_TYPE GENMASK(9, 5) +#define CFI_BRK_IMM_BASE 0x8000 +#define CFI_BRK_IMM_MASK (CFI_BRK_IMM_TARGET | CFI_BRK_IMM_TYPE) + +#endif |