tools/testing/selftests/bpf/btf_helpers.c

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/bpf/btf_helpers.c

Extension

.c

Size

6991 bytes

Lines

293

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

• stdio.h
• errno.h
• bpf/btf.h
• bpf/libbpf.h
• test_progs.h

Detected Declarations

• function fprintf_btf_type_raw
• function btf_type_raw_dump
• function btf_validate_raw
• function btf_dump_printf
• function btf_type_raw_dump

Annotated Snippet

if (err) {
			fprintf(stderr, "Failed to dump type [%d]: %d\n", i, err);
			goto err_out;
		}
	}

	btf_dump__free(d);
	fflush(buf_file);
	fclose(buf_file);
	return buf;
err_out:
	btf_dump__free(d);
	fclose(buf_file);
	return NULL;
}

Annotation

• Immediate include surface: `stdio.h`, `errno.h`, `bpf/btf.h`, `bpf/libbpf.h`, `test_progs.h`.
• Detected declarations: `function fprintf_btf_type_raw`, `function btf_type_raw_dump`, `function btf_validate_raw`, `function btf_dump_printf`, `function btf_type_raw_dump`.
• 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.