tools/objtool/include/objtool/util.h

File Facts

System

Linux kernel

Corpus path

tools/objtool/include/objtool/util.h

Extension

.h

Size

448 bytes

Lines

20

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

• objtool/warn.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _UTIL_H
#define _UTIL_H

#include <objtool/warn.h>

#define snprintf_check(str, size, format, args...)			\
({									\
	int __ret = snprintf(str, size, format, args);			\
	if (__ret < 0)							\
		ERROR_GLIBC("snprintf");				\
	else if (__ret >= size)						\
		ERROR("snprintf() failed for '" format "'", args);	\
	else								\
		__ret = 0;						\
	__ret;								\
})

#endif /* _UTIL_H */

Annotation

• Immediate include surface: `objtool/warn.h`.
• 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.