tools/testing/selftests/bpf/progs/bpf_iter_test_kern_common.h

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/bpf/progs/bpf_iter_test_kern_common.h

Extension

.h

Size

400 bytes

Lines

23

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

• vmlinux.h
• bpf/bpf_helpers.h

Detected Declarations

• function dump_task

Annotated Snippet

#include <vmlinux.h>
#include <bpf/bpf_helpers.h>

char _license[] SEC("license") = "GPL";
int count = 0;

SEC("iter/task")
int dump_task(struct bpf_iter__task *ctx)
{
	struct seq_file *seq = ctx->meta->seq;
	char c;

	if (count < 4) {
		c = START_CHAR + count;
		bpf_seq_write(seq, &c, sizeof(c));
		count++;
	}

	return 0;
}

Annotation

• Immediate include surface: `vmlinux.h`, `bpf/bpf_helpers.h`.
• Detected declarations: `function dump_task`.
• 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.