tools/lib/perf/include/perf/core.h

File Facts

System

Linux kernel

Corpus path

tools/lib/perf/include/perf/core.h

Extension

.h

Size

515 bytes

Lines

26

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

• stdarg.h

Detected Declarations

• enum libperf_print_level

Annotated Snippet

#ifndef __LIBPERF_CORE_H
#define __LIBPERF_CORE_H

#include <stdarg.h>

#ifndef LIBPERF_API
#define LIBPERF_API extern __attribute__((visibility("default")))
#endif

enum libperf_print_level {
	LIBPERF_ERR,
	LIBPERF_WARN,
	LIBPERF_INFO,
	LIBPERF_DEBUG,
	LIBPERF_DEBUG2,
	LIBPERF_DEBUG3,
};

typedef int (*libperf_print_fn_t)(enum libperf_print_level level,
				  const char *, va_list ap);

LIBPERF_API void libperf_init(libperf_print_fn_t fn);

#endif /* __LIBPERF_CORE_H */

Annotation

• Immediate include surface: `stdarg.h`.
• Detected declarations: `enum libperf_print_level`.
• 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.