tools/include/nolibc/err.h

Source file repositories/reference/linux-study-clean/tools/include/nolibc/err.h

File Facts

System
Linux kernel
Corpus path
tools/include/nolibc/err.h
Extension
.h
Size
1606 bytes
Lines
88
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#include "nolibc.h"

#ifndef _NOLIBC_ERR_H
#define _NOLIBC_ERR_H

#include "errno.h"
#include "stdarg.h"
#include "sys.h"

static __attribute__((unused))
void vwarn(const char *fmt, va_list args)
{
	fprintf(stderr, "%s: ", program_invocation_short_name);
	vfprintf(stderr, fmt, args);
	fprintf(stderr, ": %m\n");
}

static __attribute__((unused))
void vwarnx(const char *fmt, va_list args)
{
	fprintf(stderr, "%s: ", program_invocation_short_name);
	vfprintf(stderr, fmt, args);
	fprintf(stderr, "\n");
}

static __attribute__((unused))
void warn(const char *fmt, ...)
{
	va_list args;

	va_start(args, fmt);
	vwarn(fmt, args);
	va_end(args);
}

static __attribute__((unused))
void warnx(const char *fmt, ...)
{
	va_list args;

	va_start(args, fmt);
	vwarnx(fmt, args);
	va_end(args);
}

static __attribute__((noreturn, unused))
void verr(int eval, const char *fmt, va_list args)
{
	vwarn(fmt, args);
	exit(eval);
}

static __attribute__((noreturn, unused))
void verrx(int eval, const char *fmt, va_list args)
{
	warnx(fmt, args);
	exit(eval);
}

static __attribute__((noreturn, unused))
void err(int eval, const char *fmt, ...)
{
	va_list args;

	va_start(args, fmt);
	verr(eval, fmt, args);
	va_end(args);
}

static __attribute__((noreturn, unused))
void errx(int eval, const char *fmt, ...)
{
	va_list args;

	va_start(args, fmt);
	verrx(eval, fmt, args);
	va_end(args);
}

#endif /* _NOLIBC_ERR_H */

Annotation

Implementation Notes