-// +build !nacl,!js
// run
+//go:build !nacl && !js && !wasip1
+
// Copyright 2014 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.
import (
"fmt"
+ "io/ioutil"
"os"
"os/exec"
+ "path/filepath"
"strings"
)
+var tmpDir string
+
func cleanup() {
- os.Remove("linkmain.o")
- os.Remove("linkmain.a")
- os.Remove("linkmain1.o")
- os.Remove("linkmain1.a")
- os.Remove("linkmain.exe")
+ os.RemoveAll(tmpDir)
}
-func run(cmdline string) {
- args := strings.Fields(cmdline)
+func run(cmdline ...string) {
+ args := strings.Fields(strings.Join(cmdline, " "))
cmd := exec.Command(args[0], args[1:]...)
out, err := cmd.CombinedOutput()
if err != nil {
}
}
-func runFail(cmdline string) {
- args := strings.Fields(cmdline)
+func runFail(cmdline ...string) {
+ args := strings.Fields(strings.Join(cmdline, " "))
cmd := exec.Command(args[0], args[1:]...)
out, err := cmd.CombinedOutput()
if err == nil {
}
func main() {
+ var err error
+ tmpDir, err = ioutil.TempDir("", "")
+ if err != nil {
+ fmt.Println(err)
+ os.Exit(1)
+ }
+ tmp := func(name string) string {
+ return filepath.Join(tmpDir, name)
+ }
+
+ importcfg, err := exec.Command("go", "list", "-export", "-f", "{{if .Export}}packagefile {{.ImportPath}}={{.Export}}{{end}}", "std").Output()
+ if err != nil {
+ fmt.Println(err)
+ os.Exit(1)
+ }
+ os.WriteFile(tmp("importcfg"), importcfg, 0644)
+
// helloworld.go is package main
- run("go tool compile -o linkmain.o helloworld.go")
- run("go tool compile -pack -o linkmain.a helloworld.go")
- run("go tool link -o linkmain.exe linkmain.o")
- run("go tool link -o linkmain.exe linkmain.a")
+ run("go tool compile -p=main -importcfg", tmp("importcfg"), "-o", tmp("linkmain.o"), "helloworld.go")
+ run("go tool compile -p=main -importcfg", tmp("importcfg"), " -pack -o", tmp("linkmain.a"), "helloworld.go")
+ run("go tool link -importcfg", tmp("importcfg"), "-o", tmp("linkmain.exe"), tmp("linkmain.o"))
+ run("go tool link -importcfg", tmp("importcfg"), "-o", tmp("linkmain.exe"), tmp("linkmain.a"))
// linkmain.go is not
- run("go tool compile -o linkmain1.o linkmain.go")
- run("go tool compile -pack -o linkmain1.a linkmain.go")
- runFail("go tool link -o linkmain.exe linkmain1.o")
- runFail("go tool link -o linkmain.exe linkmain1.a")
+ run("go tool compile -importcfg", tmp("importcfg"), "-p=notmain -o", tmp("linkmain1.o"), "linkmain.go")
+ run("go tool compile -importcfg", tmp("importcfg"), "-p=notmain -pack -o", tmp("linkmain1.a"), "linkmain.go")
+ runFail("go tool link -importcfg", tmp("importcfg"), "-o", tmp("linkmain.exe"), tmp("linkmain1.o"))
+ runFail("go tool link -importcfg", tmp("importcfg"), "-o", tmp("linkmain.exe"), tmp("linkmain1.a"))
cleanup()
}