arch/x86/realmode/rmpiggy.S

File Facts

System

Linux kernel

Corpus path

arch/x86/realmode/rmpiggy.S

Extension

.S

Size

506 bytes

Lines

20

Domain

Architecture Layer

Bucket

arch/x86

Inferred role

Architecture Layer: arch/x86

Status

atlas-only

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/linkage.h
• asm/page_types.h

Detected Declarations

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

Annotated Snippet

#include <linux/linkage.h>
#include <asm/page_types.h>

	.section ".init.data","aw"

	.balign PAGE_SIZE

SYM_DATA_START(real_mode_blob)
	.incbin	"arch/x86/realmode/rm/realmode.bin"
SYM_DATA_END_LABEL(real_mode_blob, SYM_L_GLOBAL, real_mode_blob_end)

SYM_DATA_START(real_mode_relocs)
	.incbin	"arch/x86/realmode/rm/realmode.relocs"
SYM_DATA_END(real_mode_relocs)

Annotation

• Immediate include surface: `linux/linkage.h`, `asm/page_types.h`.
• Atlas domain: Architecture Layer / arch/x86.
• Implementation status: atlas-only.

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.