54 lines
947 B
Go
54 lines
947 B
Go
// Copyright 2016 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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// Test that SIGPROF received in C code does not crash the process
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// looking for the C code's func pointer.
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// The test fails when the function is the first C function.
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// The exported functions are the first C functions, so we use that.
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// extern void GoNop();
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import "C"
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import (
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"bytes"
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"fmt"
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"runtime/pprof"
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"time"
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)
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func init() {
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register("CgoCCodeSIGPROF", CgoCCodeSIGPROF)
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}
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//export GoNop
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func GoNop() {}
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func CgoCCodeSIGPROF() {
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c := make(chan bool)
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go func() {
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<-c
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start := time.Now()
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for i := 0; i < 1e7; i++ {
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if i%1000 == 0 {
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if time.Since(start) > time.Second {
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break
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}
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}
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C.GoNop()
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}
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c <- true
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}()
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var buf bytes.Buffer
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pprof.StartCPUProfile(&buf)
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c <- true
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<-c
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pprof.StopCPUProfile()
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fmt.Println("OK")
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}
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