arch/x86/include/asm/vdso/processor.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/vdso/processor.h

Extension

.h

Size

521 bytes

Lines

26

Domain

Architecture Layer

Bucket

arch/x86

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

• No C-style include directives detected by the generator.

Detected Declarations

• function Copyright
• function cpu_relax

Annotated Snippet

#ifndef __ASM_VDSO_PROCESSOR_H
#define __ASM_VDSO_PROCESSOR_H

#ifndef __ASSEMBLER__

/* PAUSE is a good thing to insert into busy-wait loops. */
static __always_inline void native_pause(void)
{
	asm volatile("pause" ::: "memory");
}

static __always_inline void cpu_relax(void)
{
	native_pause();
}

notrace long __vdso_getcpu(unsigned *cpu, unsigned *node, void *unused);

#endif /* __ASSEMBLER__ */

#endif /* __ASM_VDSO_PROCESSOR_H */

Annotation

• Detected declarations: `function Copyright`, `function cpu_relax`.
• Atlas domain: Architecture Layer / arch/x86.
• 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.