arch/riscv/kernel/vdso/sys_hwprobe.S

File Facts

System

Linux kernel

Corpus path

arch/riscv/kernel/vdso/sys_hwprobe.S

Extension

.S

Size

326 bytes

Lines

20

Domain

Architecture Layer

Bucket

arch/riscv

Inferred role

Architecture Layer: arch/riscv

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

• linux/linkage.h
• asm/unistd.h
• asm/assembler.h

Detected Declarations

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

Annotated Snippet

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

.text
SYM_FUNC_START(riscv_hwprobe)
	.cfi_startproc
	vdso_lpad
	li a7, __NR_riscv_hwprobe
	ecall
	ret

	.cfi_endproc
SYM_FUNC_END(riscv_hwprobe)

emit_riscv_feature_1_and

Annotation

• Immediate include surface: `linux/linkage.h`, `asm/unistd.h`, `asm/assembler.h`.
• Atlas domain: Architecture Layer / arch/riscv.
• 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.