// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. //go:build race && ((linux && (amd64 || arm64 || ppc64le || s390x)) || ((freebsd || netbsd || openbsd || windows) && amd64)) package race // This file merely ensures that we link in runtime/cgo in race build, // this in turn ensures that runtime uses pthread_create to create threads. // The prebuilt race runtime lives in race_GOOS_GOARCH.syso. // Calls to the runtime are done directly from src/runtime/race.go. // On darwin we always use system DLLs to create threads, // so we use race_darwin_$GOARCH.go to provide the syso-derived // symbol information without needing to invoke cgo. // This allows -race to be used on Mac systems without a C toolchain. // void __race_unused_func(void); import "C"