arch/um/drivers/harddog_user_exp.c

File Facts

System

Linux kernel

Corpus path

arch/um/drivers/harddog_user_exp.c

Extension

.c

Size

217 bytes

Lines

10

Domain

Architecture Layer

Bucket

arch/um

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.

Dependency Surface

• linux/export.h
• harddog.h

Detected Declarations

• export start_watchdog
• export stop_watchdog
• export ping_watchdog

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
#include <linux/export.h>
#include "harddog.h"

#if IS_MODULE(CONFIG_UML_WATCHDOG)
EXPORT_SYMBOL(start_watchdog);
EXPORT_SYMBOL(stop_watchdog);
EXPORT_SYMBOL(ping_watchdog);
#endif

Annotation

• Immediate include surface: `linux/export.h`, `harddog.h`.
• Detected declarations: `export start_watchdog`, `export stop_watchdog`, `export ping_watchdog`.
• Atlas domain: Architecture Layer / arch/um.
• Implementation status: integration 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.