arch/loongarch/include/asm/unwind_hints.h

File Facts

System

Linux kernel

Corpus path

arch/loongarch/include/asm/unwind_hints.h

Extension

.h

Size

791 bytes

Lines

37

Domain

Architecture Layer

Bucket

arch/loongarch

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.

Dependency Surface

• linux/objtool.h
• asm/orc_types.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _ASM_LOONGARCH_UNWIND_HINTS_H
#define _ASM_LOONGARCH_UNWIND_HINTS_H

#include <linux/objtool.h>
#include <asm/orc_types.h>

#ifdef __ASSEMBLER__

.macro UNWIND_HINT_UNDEFINED
	UNWIND_HINT type=UNWIND_HINT_TYPE_UNDEFINED
.endm

.macro UNWIND_HINT_END_OF_STACK
	UNWIND_HINT type=UNWIND_HINT_TYPE_END_OF_STACK
.endm

.macro UNWIND_HINT_REGS
	UNWIND_HINT sp_reg=ORC_REG_SP type=UNWIND_HINT_TYPE_REGS
.endm

.macro UNWIND_HINT_FUNC
	UNWIND_HINT sp_reg=ORC_REG_SP type=UNWIND_HINT_TYPE_CALL
.endm

#else /* !__ASSEMBLER__ */

#define UNWIND_HINT_SAVE \
	UNWIND_HINT(UNWIND_HINT_TYPE_SAVE, 0, 0, 0)

#define UNWIND_HINT_RESTORE \
	UNWIND_HINT(UNWIND_HINT_TYPE_RESTORE, 0, 0, 0)

#endif /* !__ASSEMBLER__ */

#endif /* _ASM_LOONGARCH_UNWIND_HINTS_H */

Annotation

• Immediate include surface: `linux/objtool.h`, `asm/orc_types.h`.
• Atlas domain: Architecture Layer / arch/loongarch.
• 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.