tools/lib/perf/include/internal/lib.h
Source file repositories/reference/linux-study-clean/tools/lib/perf/include/internal/lib.h
File Facts
- System
- Linux kernel
- Corpus path
tools/lib/perf/include/internal/lib.h- Extension
.h- Size
- 357 bytes
- Lines
- 15
- 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
sys/types.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef __LIBPERF_INTERNAL_LIB_H
#define __LIBPERF_INTERNAL_LIB_H
#include <sys/types.h>
extern unsigned int page_size;
ssize_t readn(int fd, void *buf, size_t n);
ssize_t writen(int fd, const void *buf, size_t n);
ssize_t preadn(int fd, void *buf, size_t n, off_t offs);
#endif /* __LIBPERF_INTERNAL_CPUMAP_H */
Annotation
- Immediate include surface: `sys/types.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.