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32 lines
798 B
32 lines
798 B
4 months ago
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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// This program hung when run under the C/C++ ThreadSanitizer.
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// TSAN defers asynchronous signals until the signaled thread calls into libc.
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// Since the Go runtime makes direct futex syscalls, Go runtime threads could
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// run for an arbitrarily long time without triggering the libc interceptors.
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// See https://golang.org/issue/18717.
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import (
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"os"
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"os/signal"
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"syscall"
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)
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/*
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#cgo CFLAGS: -g -fsanitize=thread
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#cgo LDFLAGS: -g -fsanitize=thread
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*/
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import "C"
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func main() {
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c := make(chan os.Signal, 1)
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signal.Notify(c, syscall.SIGUSR1)
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defer signal.Stop(c)
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syscall.Kill(syscall.Getpid(), syscall.SIGUSR1)
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<-c
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}
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