go norace_linux_test 源码
golang norace_linux_test 代码
文件路径：/src/runtime/norace_linux_test.go
// Copyright 2015 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.
// The file contains tests that cannot run under race detector for some reason.
//
//go:build !race
package runtime_test
import (
"internal/abi"
"runtime"
"testing"
"time"
"unsafe"
)
var newOSProcDone bool
//go:nosplit
func newOSProcCreated() {
newOSProcDone = true
}
// Can't be run with -race because it inserts calls into newOSProcCreated()
// that require a valid G/M.
func TestNewOSProc0(t *testing.T) {
runtime.NewOSProc0(0x800000, unsafe.Pointer(abi.FuncPCABIInternal(newOSProcCreated)))
check := time.NewTicker(100 * time.Millisecond)
defer check.Stop()
end := time.After(5 * time.Second)
for {
select {
case <-check.C:
if newOSProcDone {
return
}
case <-end:
t.Fatalf("couldn't create new OS process")
}
}
}
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