arch/sparc/lib/muldi3.S

File Facts

System

Linux kernel

Corpus path

arch/sparc/lib/muldi3.S

Extension

.S

Size

1361 bytes

Lines

67

Domain

Architecture Layer

Bucket

arch/sparc

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.

Dependency Surface

• linux/export.h

Detected Declarations

• export __muldi3

Annotated Snippet

This file is part of GNU CC.

 */

#include <linux/export.h>
	.text
	.align 4
	.globl __muldi3
__muldi3:
	save  %sp, -104, %sp
	wr  %g0, %i1, %y
	sra  %i3, 0x1f, %g2
	and  %i1, %g2, %g2
	andcc  %g0, 0, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, %i3, %g1
	mulscc  %g1, 0, %g1
	add  %g1, %g2, %l2
	rd  %y, %o1
	mov  %o1, %l3
	mov  %i1, %o0
	mov  %i2, %o1
	umul %o0, %o1, %o0
	mov  %o0, %l0
	mov  %i0, %o0
	mov  %i3, %o1
	umul %o0, %o1, %o0
	add  %l0, %o0, %l0
	mov  %l2, %i0
	add  %l2, %l0, %i0
	ret 
	restore  %g0, %l3, %o1
EXPORT_SYMBOL(__muldi3)

Annotation

• Immediate include surface: `linux/export.h`.
• Detected declarations: `export __muldi3`.
• Atlas domain: Architecture Layer / arch/sparc.
• Implementation status: integration 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.