source: mainline/arch/mips32/include/debugger.h@ 5bb8e45

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 5bb8e45 was 5bb8e45, checked in by Ondrej Palkovsky <ondrap@…>, 20 years ago

Added support for mips breakpoints.
We have a kind of kernel debugger :-)
Breakpoints on JMP/Branch instructions are not supported and
they are reported after the breakpoint is fired and exited as
a BranchDelay exception. If we found a way, how to detect these
instructions, we would be able to support them as 'one-time' breakpoints.

  • Property mode set to 100644
File size: 2.0 KB
Line 
1/*
2 * Copyright (C) 2005 Ondrej Palkovsky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _mips32_DEBUGGER_H_
30#define _mips32_DEBUGGER_H_
31
32#include <typedefs.h>
33#include <arch/exception.h>
34#include <arch/types.h>
35
36#define BKPOINTS_MAX 10
37
38typedef struct {
39 __address address; /**< Breakpoint address */
40 __native instruction; /**< Original instruction */
41 __native nextinstruction; /**< Original instruction following break */
42 bool executing; /**< If we are executing the original instruciton */
43} bpinfo_t;
44
45extern void debugger_init(void);
46void debugger_bpoint(struct exception_regdump *pstate);
47
48extern bpinfo_t breakpoints[BKPOINTS_MAX];
49
50#endif
Note: See TracBrowser for help on using the repository browser.