tools/build/feature/test-file-handle.c

File Facts

System

Linux kernel

Corpus path

tools/build/feature/test-file-handle.c

Extension

.c

Size

282 bytes

Lines

18

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• sys/types.h
• sys/stat.h
• fcntl.h
• inttypes.h

Detected Declarations

• function main

Annotated Snippet

#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <inttypes.h>

int main(void)
{
	struct {
		struct file_handle fh;
		uint64_t cgroup_id;
	} handle;
	int mount_id;

	name_to_handle_at(AT_FDCWD, "/", &handle.fh, &mount_id, 0);
	return 0;
}

Annotation

• Immediate include surface: `sys/types.h`, `sys/stat.h`, `fcntl.h`, `inttypes.h`.
• Detected declarations: `function main`.
• 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.