golang/go

runtime: update race sysos for riscv64, ppc64le, openbsd, netbsd

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#78261 opened on Mar 20, 2026

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ImplementationNeedsFixcompiler/runtimehelp wantedumbrella

Description

#78059 should affect every build of the race syso. https://go.dev/cl/757521 updates most of them, including all first-class ports, but several ports could not complete the build for various reasons.

#78059 will be closed as fixed so we can proceed with a backport, but the remaining ports should eventually be fixed. This issue tracks that work.

  • riscv64: #78258
  • ppc64le: #78210
  • openbsd: #78212
  • netbsd: #61121

cc @golang/riscv64 @golang/ppc64 @golang/openbsd @golang/netbsd

Contributor guide

Tech stack
go
Domain
backendtooling
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Go runtimerace detectorassembly for target arch
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
15
Research direction
The issue references several other issues (#78258, #78210, #78212, #61121) that may contain details on why the builds failed. Investigating the syso build process in the Go runtime (likely in src/runtime/race/) and the CL https://go.dev/cl/757521 will provide context. Each architecture may require specific assembly modifications or toolchain adjustments. The maintainers have noted the remaining ports cannot build, so understanding the build failures is the first step.