arch/csky/include/asm/perf_event.h

File Facts

System

Linux kernel

Corpus path

arch/csky/include/asm/perf_event.h

Extension

.h

Size

359 bytes

Lines

15

Domain

Architecture Layer

Bucket

arch/csky

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• abi/regdef.h

Detected Declarations

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

Annotated Snippet

#ifndef __ASM_CSKY_PERF_EVENT_H
#define __ASM_CSKY_PERF_EVENT_H

#include <abi/regdef.h>

#define perf_arch_fetch_caller_regs(regs, __ip) { \
	(regs)->pc = (__ip); \
	regs_fp(regs) = (unsigned long) __builtin_frame_address(0); \
	asm volatile("mov %0, sp\n":"=r"((regs)->usp)); \
}

#endif /* __ASM_PERF_EVENT_ELF_H */

Annotation

• Immediate include surface: `abi/regdef.h`.
• Atlas domain: Architecture Layer / arch/csky.
• 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.