mirror of
https://github.com/golang/go
synced 2024-11-25 05:38:01 -07:00
b2fd76ab8d
Most of the test cases in the test directory use the new go:build syntax already. Convert the rest. In general, try to place the build constraint line below the test directive comment in more places. For #41184. For #60268. Change-Id: I11c41a0642a8a26dc2eda1406da908645bbc005b Cq-Include-Trybots: luci.golang.try:gotip-linux-386-longtest,gotip-linux-amd64-longtest,gotip-windows-amd64-longtest Reviewed-on: https://go-review.googlesource.com/c/go/+/536236 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
83 lines
1.3 KiB
Go
83 lines
1.3 KiB
Go
// run
|
|
|
|
//go:build !nacl && !js && !wasip1 && !gccgo
|
|
|
|
// Copyright 2019 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 the linker permits long call sequences.
|
|
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"strconv"
|
|
)
|
|
|
|
const start = `
|
|
package main
|
|
|
|
func main() {
|
|
println(f0() + 1)
|
|
}
|
|
`
|
|
|
|
const fn = `
|
|
//go:noinline
|
|
func f%d() int {
|
|
return f%d() + 1
|
|
}`
|
|
|
|
const fnlast = `
|
|
//go:noinline
|
|
func f%d() int {
|
|
return 0
|
|
}
|
|
`
|
|
|
|
const count = 400
|
|
|
|
func main() {
|
|
if err := test(); err != nil {
|
|
fmt.Fprintln(os.Stderr, err)
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
func test() error {
|
|
var buf bytes.Buffer
|
|
buf.WriteString(start)
|
|
for i := 0; i < count; i++ {
|
|
fmt.Fprintf(&buf, fn, i, i + 1)
|
|
}
|
|
fmt.Fprintf(&buf, fnlast, count)
|
|
|
|
dir, err := ioutil.TempDir("", "issue33555")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer os.RemoveAll(dir)
|
|
|
|
fn := filepath.Join(dir, "x.go")
|
|
if err := ioutil.WriteFile(fn, buf.Bytes(), 0644); err != nil {
|
|
return err
|
|
}
|
|
|
|
out, err := exec.Command("go", "run", fn).CombinedOutput()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
want := strconv.Itoa(count + 1)
|
|
if got := string(bytes.TrimSpace(out)); got != want {
|
|
return fmt.Errorf("got %q want %q", got, want)
|
|
}
|
|
|
|
return nil
|
|
}
|