tools/include/nolibc/sys/ioctl.h

File Facts

System

Linux kernel

Corpus path

tools/include/nolibc/sys/ioctl.h

Extension

.h

Size

644 bytes

Lines

30

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.

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

Dependency Surface

• ../nolibc.h
• ../sys.h
• linux/ioctl.h

Detected Declarations

• function __attribute__

Annotated Snippet

#include "../nolibc.h"

#ifndef _NOLIBC_SYS_IOCTL_H
#define _NOLIBC_SYS_IOCTL_H

#include "../sys.h"

#include <linux/ioctl.h>

/*
 * int ioctl(int fd, unsigned long cmd, ... arg);
 */

static __attribute__((unused))
long _sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	return __nolibc_syscall3(__NR_ioctl, fd, cmd, arg);
}

#define ioctl(fd, cmd, arg) __sysret(_sys_ioctl(fd, cmd, (unsigned long)(arg)))

#endif /* _NOLIBC_SYS_IOCTL_H */

Annotation

• Immediate include surface: `../nolibc.h`, `../sys.h`, `linux/ioctl.h`.
• Detected declarations: `function __attribute__`.
• Atlas domain: Support Tooling And Documentation / tools.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.