arch/powerpc/kernel/kdebugfs.c

File Facts

System

Linux kernel

Corpus path

arch/powerpc/kernel/kdebugfs.c

Extension

.c

Size

331 bytes

Lines

15

Domain

Architecture Layer

Bucket

arch/powerpc

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

Dependency Surface

• linux/debugfs.h
• linux/export.h
• linux/init.h

Detected Declarations

• function arch_kdebugfs_init
• export arch_debugfs_dir

Annotated Snippet

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

struct dentry *arch_debugfs_dir;
EXPORT_SYMBOL(arch_debugfs_dir);

static int __init arch_kdebugfs_init(void)
{
	arch_debugfs_dir = debugfs_create_dir("powerpc", NULL);
	return 0;
}
arch_initcall(arch_kdebugfs_init);

Annotation

• Immediate include surface: `linux/debugfs.h`, `linux/export.h`, `linux/init.h`.
• Detected declarations: `function arch_kdebugfs_init`, `export arch_debugfs_dir`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.