From 87e72769fa74a2ef0bd81a3fd4febe75b8fc6731 Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Thu, 4 Sep 2025 17:13:37 +0200
Subject: [PATCH] runtime: simplify openbsd check in usesLibcall and
 mStackIsSystemAllocated

The openbsd/mips64 runtime code was removed in CL 649659.

For #61546

Change-Id: I03f16c3396baddb0ee9aa751dd6f699a835e7586
Reviewed-on: https://go-review.googlesource.com/c/go/+/700976
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
---
 src/runtime/proc.go | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/runtime/proc.go b/src/runtime/proc.go
index 2584eb4cac..51e2c42605 100644
--- a/src/runtime/proc.go
+++ b/src/runtime/proc.go
@@ -1816,10 +1816,8 @@ func startTheWorldWithSema(now int64, w worldStop) int64 {
 // via libcall.
 func usesLibcall() bool {
 	switch GOOS {
-	case "aix", "darwin", "illumos", "ios", "solaris", "windows":
+	case "aix", "darwin", "illumos", "ios", "openbsd", "solaris", "windows":
 		return true
-	case "openbsd":
-		return GOARCH != "mips64"
 	}
 	return false
 }
@@ -1828,10 +1826,8 @@ func usesLibcall() bool {
 // system-allocated stack.
 func mStackIsSystemAllocated() bool {
 	switch GOOS {
-	case "aix", "darwin", "plan9", "illumos", "ios", "solaris", "windows":
+	case "aix", "darwin", "plan9", "illumos", "ios", "openbsd", "solaris", "windows":
 		return true
-	case "openbsd":
-		return GOARCH != "mips64"
 	}
 	return false
 }
-- 
2.52.0