26a04d84bc
Mixing kernel and user debug hooks together is highly error-prone as it relies on all of the hooks to figure out whether the exception came from kernel or user, and then to act accordingly. Make our debug hook code a little more robust by maintaining separate hook lists for user and kernel, with separate registration functions to force callers to be explicit about the exception levels that they care about. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
29 lines
829 B
C
29 lines
829 B
C
/*
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __ASM_BRK_IMM_H
|
|
#define __ASM_BRK_IMM_H
|
|
|
|
/*
|
|
* #imm16 values used for BRK instruction generation
|
|
* 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)
|
|
*/
|
|
#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
|
|
|
|
#endif
|