diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2012-11-19 08:30:15 +0400 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2012-12-18 21:10:22 -0800 |
| commit | 28570e8dac5c86ab10ce2a7e9c02d3aaece63760 (patch) | |
| tree | 29a915825b1851c1377d88bdb008a0eb7993d78f /arch/xtensa/include/asm/traps.h | |
| parent | c622b29d1f38021411965b7e0170ab055551b257 (diff) | |
xtensa: add trap_set_handler function
trap_set_handler sets new C-handler in the exception table and returns
previous handler.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/include/asm/traps.h')
| -rw-r--r-- | arch/xtensa/include/asm/traps.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/traps.h b/arch/xtensa/include/asm/traps.h new file mode 100644 index 000000000000..54f70440185e --- /dev/null +++ b/arch/xtensa/include/asm/traps.h @@ -0,0 +1,23 @@ +/* + * arch/xtensa/include/asm/traps.h + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2012 Tensilica Inc. + */ +#ifndef _XTENSA_TRAPS_H +#define _XTENSA_TRAPS_H + +#include <asm/ptrace.h> + +/* + * handler must be either of the following: + * void (*)(struct pt_regs *regs); + * void (*)(struct pt_regs *regs, unsigned long exccause); + */ +extern void * __init trap_set_handler(int cause, void *handler); +extern void do_unhandled(struct pt_regs *regs, unsigned long exccause); + +#endif /* _XTENSA_TRAPS_H */ |