blob: aabca9e1ebd978dfa4b4f2c8de789837da78e71c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
// Copyright 2016 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
// Test that SIGPROF received in C code does not crash the process
// looking for the C code's func pointer.
// The test fails when the function is the first C function.
// The exported functions are the first C functions, so we use that.
// extern void GoNop();
import "C"
import (
"bytes"
"fmt"
"runtime/pprof"
"time"
)
func init() {
register("CgoCCodeSIGPROF", CgoCCodeSIGPROF)
}
//export GoNop
func GoNop() {}
func CgoCCodeSIGPROF() {
c := make(chan bool)
go func() {
<-c
start := time.Now()
for i := 0; i < 1e7; i++ {
if i%1000 == 0 {
if time.Since(start) > time.Second {
break
}
}
C.GoNop()
}
c <- true
}()
var buf bytes.Buffer
pprof.StartCPUProfile(&buf)
c <- true
<-c
pprof.StopCPUProfile()
fmt.Println("OK")
}
|
