blob: ecf6eb0232c54cb24e5c27115d588f49a98c6651 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Panic handling, including displaying a message on the panic reporting
* device, which is currently the UART.
*/
#ifndef __PANIC_H
#include <stdarg.h>
/**
* Write a character to the panic reporting device
*
* This function will not return until the character has left the UART
* data register. Any previously queued UART traffic is displayed first.
*
* @param ch Character to write
*/
void panic_putc(int ch);
/**
* Write a string to the panic reporting device
*
* This function will not return until the string has left the UART
* data register. Any previously queued UART traffic is displayed first.
*
* @param ch Character to write
*/
void panic_puts(const char *s);
/**
* Very basic vprintf() for use in panic situations
*
* We only support %s and %nx where n is the number of hex digits to display.
* Currently we don't even support %d, and it is aimed at small code size.
*
* TODO(sjg@chromium.org): Really what we need is a vsnprintf() that is
* shared between the console UART and panic (and is also available as an
* snprintf()). The only downside is that we would then require a large
* printf() implementation to be always present, whereas presumably now we
* can turn it off.
*
* @param format printf-style format string
* @param args List of arguments to process
*/
void panic_vprintf(const char *format, va_list args);
/**
* Very basic printf() for use in panic situations
*
* See panic_vprintf() for full details
*
* @param format printf-style format string
* @param ... Arguments to process
*/
void panic_printf(const char *format, ...);
/**
* Report an assertion failure and reset
*
* @param msg Assertion expression or other message
* @param func Function name where assertion happened
* @param fname File name where assertion happened
* @param linenum Line number where assertion happened
*/
void panic_assert_fail(const char *msg, const char *func, const char *fname,
int linenum);
/**
* Display a panic message and reset
*
* @param msg Panic message
*/
void panic(const char *msg);
/**
* Enable/disable bus fault handler
*
* @param ignored Non-zero if ignoring bus fault
*/
void ignore_bus_fault(int ignored);
#endif
|
