printk.h File Reference

#include <zephyr/toolchain.h>
#include <stddef.h>
#include <stdarg.h>
#include <inttypes.h>

Go to the source code of this file.

Functions
static void	printk (const char *fmt,...)
	Print kernel debugging message. More...
static void	vprintk (const char *fmt, va_list ap)
int	snprintk (char *str, size_t size, const char *fmt,...)
int	vsnprintk (char *str, size_t size, const char *fmt, va_list ap)

Function Documentation

printk()

static void printk ( const char *  fmt,   ...  )

inlinestatic

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: %%

Field width (with or without leading zeroes) is supported. Length attributes h, hh, l, ll and z are supported. However, integral values with lld and lli are only printed if they fit in a long otherwise 'ERR' is printed. Full 64-bit values may be printed with llx. Flags and precision attributes are not supported.

Parameters

fmt	Format string.
...	Optional list of format arguments.

snprintk()

int snprintk	(	char *	str,
		size_t	size,
		const char *	fmt,
			...
	)

vprintk()

static void vprintk ( const char *  fmt, va_list  ap  )

inlinestatic

vsnprintk()

int vsnprintk	(	char *	str,
		size_t	size,
		const char *	fmt,
		va_list	ap
	)