50 lines
904 B
Go
50 lines
904 B
Go
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// Copyright 2021 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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//go:build !gccgo
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// +build !gccgo
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package main
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// Test taking a goroutine profile with C traceback.
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/*
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// Defined in gprof_c.c.
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void CallGoSleep(void);
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void gprofCgoTraceback(void* parg);
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void gprofCgoContext(void* parg);
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*/
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import "C"
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import (
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"fmt"
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"io"
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"runtime"
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"runtime/pprof"
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"time"
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"unsafe"
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)
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func init() {
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register("GoroutineProfile", GoroutineProfile)
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}
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func GoroutineProfile() {
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runtime.SetCgoTraceback(0, unsafe.Pointer(C.gprofCgoTraceback), unsafe.Pointer(C.gprofCgoContext), nil)
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go C.CallGoSleep()
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go C.CallGoSleep()
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go C.CallGoSleep()
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time.Sleep(1 * time.Second)
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prof := pprof.Lookup("goroutine")
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prof.WriteTo(io.Discard, 1)
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fmt.Println("OK")
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}
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//export GoSleep
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func GoSleep() {
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time.Sleep(time.Hour)
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}
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