1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // The file contains tests that cannot run under race detector for some reason. 6 // +build !race 7 8 package runtime_test 9 10 import ( 11 "runtime" 12 "testing" 13 "time" 14 "unsafe" 15 ) 16 17 var newOSProcDone bool 18 19 //go:nosplit 20 func newOSProcCreated() { 21 newOSProcDone = true 22 } 23 24 // Can't be run with -race because it inserts calls into newOSProcCreated() 25 // that require a valid G/M. 26 func TestNewOSProc0(t *testing.T) { 27 runtime.NewOSProc0(0x800000, unsafe.Pointer(runtime.FuncPC(newOSProcCreated))) 28 check := time.NewTicker(100 * time.Millisecond) 29 defer check.Stop() 30 end := time.After(5 * time.Second) 31 for { 32 select { 33 case <-check.C: 34 if newOSProcDone { 35 return 36 } 37 case <-end: 38 t.Fatalf("couldn't create new OS process") 39 } 40 } 41 } 42
