1
0
mirror of https://github.com/golang/go synced 2024-11-14 09:00:21 -07:00
go/misc/cgo/testshared/testdata/gcdata/main/main.go

38 lines
763 B
Go
Raw Normal View History

// Copyright 2020 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.
// Test that GC data is generated correctly for global
// variables with types defined in a shared library.
// See issue 39927.
// This test run under GODEBUG=clobberfree=1. The check
// *x[i] == 12345 depends on this debug mode to clobber
// the value if the object is freed prematurely.
package main
import (
"fmt"
"runtime"
"testshared/gcdata/p"
)
var x p.T
func main() {
for i := range x {
x[i] = new(int)
*x[i] = 12345
}
runtime.GC()
runtime.GC()
runtime.GC()
for i := range x {
if *x[i] != 12345 {
fmt.Printf("x[%d] == %d, want 12345\n", i, *x[i])
panic("FAIL")
}
}
}