tools/testing/selftests/nolibc/nolibc-test-linkage.c

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/nolibc/nolibc-test-linkage.c

Extension

.c

Size

422 bytes

Lines

25

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-test-linkage.h
• errno.h

Detected Declarations

• function constructor1
• function constructor2

Annotated Snippet

#include "nolibc-test-linkage.h"

#include <errno.h>

void *linkage_test_errno_addr(void)
{
	return &errno;
}

int linkage_test_constructor_test_value = 0;

__attribute__((constructor))
static void constructor1(void)
{
	linkage_test_constructor_test_value |= 1 << 0;
}

__attribute__((constructor))
static void constructor2(void)
{
	linkage_test_constructor_test_value |= 1 << 1;
}

Annotation

• Immediate include surface: `nolibc-test-linkage.h`, `errno.h`.
• Detected declarations: `function constructor1`, `function constructor2`.
• 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.