arch/um/kernel/config.c.in

File Facts

System

Linux kernel

Corpus path

arch/um/kernel/config.c.in

Extension

.in

Size

505 bytes

Lines

27

Domain

Architecture Layer

Bucket

arch/um

Inferred role

Architecture Layer: arch/um

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

• stdio.h
• stdlib.h
• init.h

Detected Declarations

• function print_config

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
 */

#include <stdio.h>
#include <stdlib.h>
#include <init.h>

static __initdata const char *config[] = {
"CONFIG"
};

static int __init print_config(char *line, int *add)
{
	int i;
	for (i = 0; i < sizeof(config)/sizeof(config[0]); i++)
		printf("%s", config[i]);
	exit(0);
}

__uml_setup("--showconfig", print_config,
"--showconfig\n"
"    Prints the config file that this UML binary was generated from.\n\n"
);

Annotation

• Immediate include surface: `stdio.h`, `stdlib.h`, `init.h`.
• Detected declarations: `function print_config`.
• Atlas domain: Architecture Layer / arch/um.
• 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.