Annotation of prex-old/sys/include/debug.h, Revision 1.1.1.1
1.1 nbrk 1: /*-
2: * Copyright (c) 2005-2006, Kohsuke Ohtani
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: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. Neither the name of the author nor the names of any co-contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: */
29:
30: #ifndef _DEBUG_H
31: #define _DEBUG_H
32:
33: #define MSGBUFSZ 128 /* Size of one kernel message */
34:
35: /*
36: * BREAKPOINT()
37: *
38: * Break into debugger.
39: * This works only with a debug version, and only when debugger
40: * is attached.
41: */
42: #ifdef DEBUG
43: #define BREAKPOINT() breakpoint()
44: #else
45: #define BREAKPOINT() do {} while (0)
46: #endif
47:
48: /*
49: * printk()
50: *
51: * Print out kernel message to the debug port.
52: * The message is enabled only when DEBUG build.
53: */
54: #ifdef DEBUG
55: extern void printk(const char *fmt, ...);
56: #else
57: #define printk(fmt...) do {} while (0)
58: #endif
59:
60: /*
61: * panic()
62: *
63: * Reset CPU for fatal error.
64: * If debugger is attached, break into it.
65: */
66: #ifdef DEBUG
67: extern void panic(const char *fmt, ...);
68: #else
69: extern void machine_reset(void);
70: #define panic(fmt...) machine_reset()
71: #endif
72:
73: /*
74: * ASSERT(exp)
75: *
76: * If exp is false(zero), stop with source info.
77: * This is enabled only when DEBUG build. An asserion check
78: * should be used only for invalid kernel condition.
79: * It can not be used to check the input argument from user
80: * mode because kernel must not do panic for it. The kernel
81: * should return an appropriate error code in such case.
82: */
83: #ifdef DEBUG
84: extern void assert(const char *file, int line, const char *exp);
85: #define ASSERT(exp) do { if (!(exp)) \
86: assert(__FILE__, __LINE__, #exp); } while (0)
87: #else
88: #define ASSERT(exp) do {} while (0)
89: #endif
90:
91: /*
92: * Command for sys_debug()
93: */
94: #define DCMD_DUMP 0
95: #define DCMD_LOGSIZE 1
96: #define DCMD_GETLOG 2
97:
98: /*
99: * Items for debug_dump()
100: */
101: #define DUMP_THREAD 1
102: #define DUMP_TASK 2
103: #define DUMP_OBJECT 3
104: #define DUMP_TIMER 4
105: #define DUMP_IRQ 5
106: #define DUMP_DEVICE 6
107: #define DUMP_VM 7
108: #define DUMP_MSGLOG 8
109: #define DUMP_TRACE 9
110:
111: #ifdef DEBUG
112: extern void boot_dump(void);
113: extern int log_get(char **, size_t *);
114: #endif
115: extern int debug_dump(int);
116: extern void debug_attach(void (*)(char *));
117:
118: #endif /* !_DEBUG_H */
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