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https://github.com/golang/go
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6f445a9db5
Using importcfg instead of depending on the existence of .a files for standard library packages will enable us to remove the .a files in a future cl. Change-Id: I6108384224508bc37d82fd990fc4a8649222502c Reviewed-on: https://go-review.googlesource.com/c/go/+/440222 Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Michael Matloob <matloob@golang.org> Run-TryBot: Michael Matloob <matloob@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org>
62 lines
1.6 KiB
Go
62 lines
1.6 KiB
Go
// +build !nacl,!js,gc
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// run
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// Copyright 2011 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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// Test that compiling with optimization turned on produces faster code.
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package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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)
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func main() {
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err := os.Chdir(filepath.Join(".", "fixedbugs", "bug369.dir"))
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check(err)
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tmpDir, err := ioutil.TempDir("", "bug369")
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check(err)
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defer os.RemoveAll(tmpDir)
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tmp := func(name string) string {
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return filepath.Join(tmpDir, name)
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}
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check(os.Mkdir(tmp("test"), 0777))
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stdlibimportcfg, err := os.ReadFile(os.Getenv("STDLIB_IMPORTCFG"))
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check(err)
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importcfg := string(stdlibimportcfg) + "\npackagefile test/slow=" + tmp("test/slow.o") + "\npackagefile test/fast=" + tmp("test/fast.o")
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os.WriteFile(tmp("importcfg"), []byte(importcfg), 0644)
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run("go", "tool", "compile", "-importcfg="+tmp("importcfg"), "-p=test/slow", "-N", "-o", tmp("test/slow.o"), "pkg.go")
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run("go", "tool", "compile", "-importcfg="+tmp("importcfg"), "-p=test/fast", "-o", tmp("test/fast.o"), "pkg.go")
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run("go", "tool", "compile", "-importcfg="+tmp("importcfg"), "-p=main", "-D", "test", "-o", tmp("main.o"), "main.go")
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run("go", "tool", "link", "-importcfg="+tmp("importcfg"), "-o", tmp("a.exe"), tmp("main.o"))
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run(tmp("a.exe"))
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}
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func run(name string, args ...string) {
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cmd := exec.Command(name, args...)
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out, err := cmd.CombinedOutput()
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if err != nil {
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fmt.Println(string(out))
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fmt.Println(err)
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os.Exit(1)
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}
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}
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func check(err error) {
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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}
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