arch/nios2/mm/extable.c

File Facts

System

Linux kernel

Corpus path

arch/nios2/mm/extable.c

Extension

.c

Size

624 bytes

Lines

26

Domain

Architecture Layer

Bucket

arch/nios2

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/extable.h
• linux/uaccess.h

Detected Declarations

• function Copyright

Annotated Snippet

#include <linux/extable.h>
#include <linux/uaccess.h>

int fixup_exception(struct pt_regs *regs)
{
	const struct exception_table_entry *fixup;

	fixup = search_exception_tables(regs->ea);
	if (fixup) {
		regs->ea = fixup->fixup;
		return 1;
	}

	return 0;
}

Annotation

• Immediate include surface: `linux/extable.h`, `linux/uaccess.h`.
• Detected declarations: `function Copyright`.
• Atlas domain: Architecture Layer / arch/nios2.
• 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.