tools/include/nolibc/sys/sysmacros.h

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

File Facts

System
Linux kernel
Corpus path
tools/include/nolibc/sys/sysmacros.h
Extension
.h
Size
892 bytes
Lines
38
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_SYS_SYSMACROS_H
#define _NOLIBC_SYS_SYSMACROS_H

#include "../std.h"

static __inline__ dev_t __nolibc_makedev(unsigned int maj, unsigned int min)
{
	return (((dev_t)maj & ~0xfff) << 32) | ((maj & 0xfff) << 8) |
	       (((dev_t)min & ~0xff) << 12) | (min & 0xff);
}

#define makedev(maj, min) __nolibc_makedev(maj, min)

static __inline__ unsigned int __nolibc_major(dev_t dev)
{
	return ((dev >> 32) & ~0xfff) | ((dev >> 8) & 0xfff);
}

#define major(dev) __nolibc_major(dev)

static __inline__ unsigned int __nolibc_minor(dev_t dev)
{
	return ((dev >> 12) & ~0xff) | (dev & 0xff);
}

#define minor(dev) __nolibc_minor(dev)

#endif /* _NOLIBC_SYS_SYSMACROS_H */

Annotation

Implementation Notes