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go/misc/cgo/testsanitizers/testdata/tsan10.go
Bryan C. Mills 8f1e2d4ef7 misc/cgo/testsanitizers: move test source files into testdata directory
If we run 'go test ./...' in the misc module, we don't want to see
errors for these standalone files.

We could instead add +ignore tags to each file individually, but this
is exactly what a testdata directory is for.

Updates #30228

Change-Id: I7047ad888dd6aff701f5982d58b6a79f6a487c58
Reviewed-on: https://go-review.googlesource.com/c/163417
Run-TryBot: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
2019-02-22 21:58:00 +00:00

32 lines
798 B
Go

// Copyright 2017 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.
package main
// This program hung when run under the C/C++ ThreadSanitizer.
// TSAN defers asynchronous signals until the signaled thread calls into libc.
// Since the Go runtime makes direct futex syscalls, Go runtime threads could
// run for an arbitrarily long time without triggering the libc interceptors.
// See https://golang.org/issue/18717.
import (
"os"
"os/signal"
"syscall"
)
/*
#cgo CFLAGS: -g -fsanitize=thread
#cgo LDFLAGS: -g -fsanitize=thread
*/
import "C"
func main() {
c := make(chan os.Signal, 1)
signal.Notify(c, syscall.SIGUSR1)
defer signal.Stop(c)
syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
<-c
}