arch/x86/purgatory/purgatory.c

File Facts

System

Linux kernel

Corpus path

arch/x86/purgatory/purgatory.c

Extension

.c

Size

1257 bytes

Lines

61

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

Dependency Surface

• linux/bug.h
• linux/kernel.h
• linux/types.h
• crypto/sha2.h
• asm/purgatory.h
• ../boot/compressed/error.h
• ../boot/string.h

Detected Declarations

• function verify_sha256_digest
• function purgatory
• function memcpy

Annotated Snippet

void warn(const char *msg) {}

Annotation

• Immediate include surface: `linux/bug.h`, `linux/kernel.h`, `linux/types.h`, `crypto/sha2.h`, `asm/purgatory.h`, `../boot/compressed/error.h`, `../boot/string.h`.
• Detected declarations: `function verify_sha256_digest`, `function purgatory`, `function memcpy`.
• 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.