include/linux/unwind_user.h

File Facts

System

Linux kernel

Corpus path

include/linux/unwind_user.h

Extension

.h

Size

649 bytes

Lines

29

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/unwind_user_types.h
• asm/unwind_user.h

Detected Declarations

• function unwind_user_at_function_start

Annotated Snippet

#ifndef _LINUX_UNWIND_USER_H
#define _LINUX_UNWIND_USER_H

#include <linux/unwind_user_types.h>
#include <asm/unwind_user.h>

#ifndef CONFIG_HAVE_UNWIND_USER_FP

#define ARCH_INIT_USER_FP_FRAME(ws)

#endif

#ifndef ARCH_INIT_USER_FP_ENTRY_FRAME
#define ARCH_INIT_USER_FP_ENTRY_FRAME(ws)
#endif

#ifndef unwind_user_at_function_start
static inline bool unwind_user_at_function_start(struct pt_regs *regs)
{
	return false;
}
#define unwind_user_at_function_start unwind_user_at_function_start
#endif

int unwind_user(struct unwind_stacktrace *trace, unsigned int max_entries);

#endif /* _LINUX_UNWIND_USER_H */

Annotation

• Immediate include surface: `linux/unwind_user_types.h`, `asm/unwind_user.h`.
• Detected declarations: `function unwind_user_at_function_start`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.