arch/loongarch/vdso/sigreturn.S

File Facts

System

Linux kernel

Corpus path

arch/loongarch/vdso/sigreturn.S

Extension

.S

Size

459 bytes

Lines

25

Domain

Architecture Layer

Bucket

arch/loongarch

Inferred role

Architecture Layer: arch/loongarch

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

• asm/vdso/vdso.h
• linux/linkage.h
• uapi/asm/unistd.h
• asm/regdef.h
• asm/asm.h
• asm/asm-offsets.h

Detected Declarations

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

Annotated Snippet

#include <asm/vdso/vdso.h>

#include <linux/linkage.h>
#include <uapi/asm/unistd.h>

#include <asm/regdef.h>
#include <asm/asm.h>
#include <asm/asm-offsets.h>

	.section	.text

SYM_SIGFUNC_START(__vdso_rt_sigreturn)

	li.w	a7, __NR_rt_sigreturn
	syscall	0

SYM_SIGFUNC_END(__vdso_rt_sigreturn)

Annotation

• Immediate include surface: `asm/vdso/vdso.h`, `linux/linkage.h`, `uapi/asm/unistd.h`, `asm/regdef.h`, `asm/asm.h`, `asm/asm-offsets.h`.
• Atlas domain: Architecture Layer / arch/loongarch.
• 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.