arch/parisc/include/asm/current.h

File Facts

System

Linux kernel

Corpus path

arch/parisc/include/asm/current.h

Extension

.h

Size

437 bytes

Lines

22

Domain

Architecture Layer

Bucket

arch/parisc

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

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

Detected Declarations

• struct task_struct

Annotated Snippet

#ifndef _ASM_PARISC_CURRENT_H
#define _ASM_PARISC_CURRENT_H

#ifndef __ASSEMBLER__
struct task_struct;

static __always_inline struct task_struct *get_current(void)
{
	struct task_struct *ts;

	/* do not use mfctl() macro as it is marked volatile */
	asm( "mfctl %%cr30,%0" : "=r" (ts) );
	return ts;
}

#define current get_current()

#endif /* __ASSEMBLER__ */

#endif /* _ASM_PARISC_CURRENT_H */

Annotation

• Detected declarations: `struct task_struct`.
• Atlas domain: Architecture Layer / arch/parisc.
• 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.