arch/powerpc/include/asm/linkage.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/linkage.h

Extension

.h

Size

508 bytes

Lines

17

Domain

Architecture Layer

Bucket

arch/powerpc

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

• asm/types.h

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_POWERPC_LINKAGE_H
#define _ASM_POWERPC_LINKAGE_H

#include <asm/types.h>

#ifdef CONFIG_PPC64_ELF_ABI_V1
#define cond_syscall(x) \
	asm ("\t.weak " #x "\n\t.set " #x ", sys_ni_syscall\n"		\
	     "\t.weak ." #x "\n\t.set ." #x ", .sys_ni_syscall\n")
#define SYSCALL_ALIAS(alias, name)					\
	asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n"	\
	     "\t.globl ." #alias "\n\t.set ." #alias ", ." #name)
#endif

#endif	/* _ASM_POWERPC_LINKAGE_H */

Annotation

• Immediate include surface: `asm/types.h`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.