arch/arc/include/uapi/asm/swab.h

File Facts

System

Linux kernel

Corpus path

arch/arc/include/uapi/asm/swab.h

Extension

.h

Size

911 bytes

Lines

37

Domain

Architecture Layer

Bucket

arch/arc

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

• linux/types.h

Detected Declarations

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

Annotated Snippet

#ifndef __ASM_ARC_SWAB_H
#define __ASM_ARC_SWAB_H

#include <linux/types.h>

#define __arch_swab32(x)		\
({					\
	unsigned int tmp = x;		\
	__asm__(			\
	"	swape	%0, %1	\n"	\
	: "=r" (tmp)			\
	: "r" (tmp));			\
	tmp;				\
})

#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
#define __SWAB_64_THRU_32__
#endif

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Atlas domain: Architecture Layer / arch/arc.
• 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.