2015-04-11 07:44:37 +08:00
|
|
|
/* printk.h - low-level debug output */
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Copyright (c) 2010-2012, 2014 Wind River Systems, Inc.
|
|
|
|
*
|
2017-01-19 09:01:01 +08:00
|
|
|
* SPDX-License-Identifier: Apache-2.0
|
2015-04-11 07:44:37 +08:00
|
|
|
*/
|
2015-08-05 00:46:42 +08:00
|
|
|
#ifndef _PRINTK_H_
|
|
|
|
#define _PRINTK_H_
|
2015-04-11 07:44:37 +08:00
|
|
|
|
2015-08-05 00:46:42 +08:00
|
|
|
#include <toolchain.h>
|
2016-11-28 16:31:18 +08:00
|
|
|
#include <stddef.h>
|
|
|
|
#include <stdarg.h>
|
2015-08-05 00:46:42 +08:00
|
|
|
|
2016-01-23 01:38:49 +08:00
|
|
|
#ifdef __cplusplus
|
|
|
|
extern "C" {
|
|
|
|
#endif
|
|
|
|
|
2015-10-27 02:29:04 +08:00
|
|
|
/**
|
|
|
|
*
|
|
|
|
* @brief Print kernel debugging message.
|
|
|
|
*
|
|
|
|
* This routine prints a kernel debugging message to the system console.
|
|
|
|
* Output is send immediately, without any mutual exclusion or buffering.
|
|
|
|
*
|
|
|
|
* A basic set of conversion specifier characters are supported:
|
|
|
|
* - signed decimal: \%d, \%i
|
|
|
|
* - unsigned decimal: \%u
|
|
|
|
* - unsigned hexadecimal: \%x (\%X is treated as \%x)
|
|
|
|
* - pointer: \%p
|
|
|
|
* - string: \%s
|
|
|
|
* - character: \%c
|
|
|
|
* - percent: \%\%
|
|
|
|
*
|
|
|
|
* No other conversion specification capabilities are supported, such as flags,
|
|
|
|
* field width, precision, or length attributes.
|
|
|
|
*
|
|
|
|
* @param fmt Format string.
|
|
|
|
* @param ... Optional list of format arguments.
|
|
|
|
*
|
|
|
|
* @return N/A
|
|
|
|
*/
|
2015-08-05 00:46:42 +08:00
|
|
|
#ifdef CONFIG_PRINTK
|
2016-11-28 15:55:19 +08:00
|
|
|
extern __printf_like(1, 2) int printk(const char *fmt, ...);
|
2016-11-28 16:31:18 +08:00
|
|
|
extern __printf_like(3, 4) int snprintk(char *str, size_t size,
|
|
|
|
const char *fmt, ...);
|
|
|
|
extern int vsnprintk(char *str, size_t size, const char *fmt, va_list ap);
|
2016-12-10 03:41:30 +08:00
|
|
|
|
|
|
|
void _vprintk(int (*out)(int, void *), void *ctx, const char *fmt, va_list ap);
|
2015-08-05 00:46:42 +08:00
|
|
|
#else
|
2016-11-28 15:55:19 +08:00
|
|
|
static inline __printf_like(1, 2) int printk(const char *fmt, ...)
|
2015-08-05 00:46:42 +08:00
|
|
|
{
|
|
|
|
ARG_UNUSED(fmt);
|
2016-11-28 15:55:19 +08:00
|
|
|
return 0;
|
2015-08-05 00:46:42 +08:00
|
|
|
}
|
2016-11-28 16:31:18 +08:00
|
|
|
|
|
|
|
static inline __printf_like(3, 4) int snprintk(char *str, size_t size,
|
|
|
|
const char *fmt, ...)
|
|
|
|
{
|
|
|
|
ARG_UNUSED(str);
|
|
|
|
ARG_UNUSED(size);
|
|
|
|
ARG_UNUSED(fmt);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int vsnprintk(char *str, size_t size, const char *fmt,
|
|
|
|
va_list ap)
|
|
|
|
{
|
|
|
|
ARG_UNUSED(str);
|
|
|
|
ARG_UNUSED(size);
|
|
|
|
ARG_UNUSED(fmt);
|
2016-12-24 07:23:18 +08:00
|
|
|
ARG_UNUSED(ap);
|
|
|
|
|
2016-11-28 16:31:18 +08:00
|
|
|
return 0;
|
|
|
|
}
|
2015-08-05 00:46:42 +08:00
|
|
|
#endif
|
|
|
|
|
2016-01-23 01:38:49 +08:00
|
|
|
#ifdef __cplusplus
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2015-08-05 00:46:42 +08:00
|
|
|
#endif
|