1174 lines
29 KiB
Go
1174 lines
29 KiB
Go
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// Copyright 2016 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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package carchive_test
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import (
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"bufio"
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"bytes"
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"debug/elf"
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"flag"
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"fmt"
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"io"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"regexp"
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"runtime"
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"strconv"
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"strings"
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"syscall"
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"testing"
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"time"
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"unicode"
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)
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// Program to run.
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var bin []string
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// C compiler with args (from $(go env CC) $(go env GOGCCFLAGS)).
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var cc []string
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// ".exe" on Windows.
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var exeSuffix string
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var GOOS, GOARCH, GOPATH string
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var libgodir string
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var testWork bool // If true, preserve temporary directories.
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func TestMain(m *testing.M) {
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flag.BoolVar(&testWork, "testwork", false, "if true, log and preserve the test's temporary working directory")
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flag.Parse()
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if testing.Short() && os.Getenv("GO_BUILDER_NAME") == "" {
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fmt.Printf("SKIP - short mode and $GO_BUILDER_NAME not set\n")
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os.Exit(0)
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}
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log.SetFlags(log.Lshortfile)
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os.Exit(testMain(m))
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}
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func testMain(m *testing.M) int {
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// We need a writable GOPATH in which to run the tests.
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// Construct one in a temporary directory.
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var err error
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GOPATH, err = os.MkdirTemp("", "carchive_test")
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if err != nil {
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log.Panic(err)
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}
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if testWork {
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log.Println(GOPATH)
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} else {
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defer os.RemoveAll(GOPATH)
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}
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os.Setenv("GOPATH", GOPATH)
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// Copy testdata into GOPATH/src/testarchive, along with a go.mod file
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// declaring the same path.
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modRoot := filepath.Join(GOPATH, "src", "testcarchive")
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if err := overlayDir(modRoot, "testdata"); err != nil {
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log.Panic(err)
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}
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if err := os.Chdir(modRoot); err != nil {
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log.Panic(err)
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}
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os.Setenv("PWD", modRoot)
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if err := os.WriteFile("go.mod", []byte("module testcarchive\n"), 0666); err != nil {
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log.Panic(err)
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}
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GOOS = goEnv("GOOS")
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GOARCH = goEnv("GOARCH")
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bin = cmdToRun("./testp")
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ccOut := goEnv("CC")
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cc = []string{string(ccOut)}
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out := goEnv("GOGCCFLAGS")
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quote := '\000'
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start := 0
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lastSpace := true
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backslash := false
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s := string(out)
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for i, c := range s {
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if quote == '\000' && unicode.IsSpace(c) {
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if !lastSpace {
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cc = append(cc, s[start:i])
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lastSpace = true
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}
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} else {
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if lastSpace {
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start = i
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lastSpace = false
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}
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if quote == '\000' && !backslash && (c == '"' || c == '\'') {
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quote = c
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backslash = false
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} else if !backslash && quote == c {
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quote = '\000'
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} else if (quote == '\000' || quote == '"') && !backslash && c == '\\' {
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backslash = true
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} else {
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backslash = false
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}
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}
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}
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if !lastSpace {
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cc = append(cc, s[start:])
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}
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if GOOS == "aix" {
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// -Wl,-bnoobjreorder is mandatory to keep the same layout
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// in .text section.
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cc = append(cc, "-Wl,-bnoobjreorder")
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}
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libbase := GOOS + "_" + GOARCH
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if runtime.Compiler == "gccgo" {
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libbase = "gccgo_" + libbase + "_fPIC"
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} else {
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switch GOOS {
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case "darwin", "ios":
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if GOARCH == "arm64" {
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libbase += "_shared"
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}
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case "dragonfly", "freebsd", "linux", "netbsd", "openbsd", "solaris", "illumos":
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libbase += "_shared"
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}
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}
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libgodir = filepath.Join(GOPATH, "pkg", libbase, "testcarchive")
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cc = append(cc, "-I", libgodir)
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// Force reallocation (and avoid aliasing bugs) for parallel tests that append to cc.
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cc = cc[:len(cc):len(cc)]
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if GOOS == "windows" {
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exeSuffix = ".exe"
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}
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return m.Run()
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}
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func goEnv(key string) string {
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out, err := exec.Command("go", "env", key).Output()
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if err != nil {
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if ee, ok := err.(*exec.ExitError); ok {
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fmt.Fprintf(os.Stderr, "%s", ee.Stderr)
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}
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log.Panicf("go env %s failed:\n%s\n", key, err)
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}
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return strings.TrimSpace(string(out))
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}
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func cmdToRun(name string) []string {
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execScript := "go_" + goEnv("GOOS") + "_" + goEnv("GOARCH") + "_exec"
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executor, err := exec.LookPath(execScript)
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if err != nil {
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return []string{name}
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}
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return []string{executor, name}
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}
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// genHeader writes a C header file for the C-exported declarations found in .go
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// source files in dir.
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//
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// TODO(golang.org/issue/35715): This should be simpler.
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func genHeader(t *testing.T, header, dir string) {
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t.Helper()
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// The 'cgo' command generates a number of additional artifacts,
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// but we're only interested in the header.
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// Shunt the rest of the outputs to a temporary directory.
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objDir, err := os.MkdirTemp(GOPATH, "_obj")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(objDir)
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files, err := filepath.Glob(filepath.Join(dir, "*.go"))
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if err != nil {
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t.Fatal(err)
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}
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cmd := exec.Command("go", "tool", "cgo",
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"-objdir", objDir,
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"-exportheader", header)
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cmd.Args = append(cmd.Args, files...)
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t.Log(cmd.Args)
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if out, err := cmd.CombinedOutput(); err != nil {
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t.Logf("%s", out)
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t.Fatal(err)
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}
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}
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func testInstall(t *testing.T, exe, libgoa, libgoh string, buildcmd ...string) {
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t.Helper()
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cmd := exec.Command(buildcmd[0], buildcmd[1:]...)
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t.Log(buildcmd)
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if out, err := cmd.CombinedOutput(); err != nil {
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t.Logf("%s", out)
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t.Fatal(err)
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}
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if !testWork {
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defer func() {
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os.Remove(libgoa)
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os.Remove(libgoh)
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}()
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}
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ccArgs := append(cc, "-o", exe, "main.c")
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if GOOS == "windows" {
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ccArgs = append(ccArgs, "main_windows.c", libgoa, "-lntdll", "-lws2_32", "-lwinmm")
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} else {
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ccArgs = append(ccArgs, "main_unix.c", libgoa)
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}
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if runtime.Compiler == "gccgo" {
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ccArgs = append(ccArgs, "-lgo")
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}
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t.Log(ccArgs)
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if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
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t.Logf("%s", out)
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t.Fatal(err)
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}
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if !testWork {
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defer os.Remove(exe)
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}
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binArgs := append(cmdToRun(exe), "arg1", "arg2")
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cmd = exec.Command(binArgs[0], binArgs[1:]...)
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if runtime.Compiler == "gccgo" {
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cmd.Env = append(os.Environ(), "GCCGO=1")
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}
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if out, err := cmd.CombinedOutput(); err != nil {
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t.Logf("%s", out)
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t.Fatal(err)
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}
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checkLineComments(t, libgoh)
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}
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var badLineRegexp = regexp.MustCompile(`(?m)^#line [0-9]+ "/.*$`)
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// checkLineComments checks that the export header generated by
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// -buildmode=c-archive doesn't have any absolute paths in the #line
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// comments. We don't want those paths because they are unhelpful for
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// the user and make the files change based on details of the location
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// of GOPATH.
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func checkLineComments(t *testing.T, hdrname string) {
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hdr, err := os.ReadFile(hdrname)
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if err != nil {
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if !os.IsNotExist(err) {
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t.Error(err)
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}
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return
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}
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if line := badLineRegexp.Find(hdr); line != nil {
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t.Errorf("bad #line directive with absolute path in %s: %q", hdrname, line)
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}
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}
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// checkArchive verifies that the created library looks OK.
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// We just check a couple of things now, we can add more checks as needed.
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func checkArchive(t *testing.T, arname string) {
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t.Helper()
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switch GOOS {
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case "aix", "darwin", "ios", "windows":
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// We don't have any checks for non-ELF libraries yet.
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if _, err := os.Stat(arname); err != nil {
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t.Errorf("archive %s does not exist: %v", arname, err)
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}
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default:
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checkELFArchive(t, arname)
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}
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}
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// checkELFArchive checks an ELF archive.
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func checkELFArchive(t *testing.T, arname string) {
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t.Helper()
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f, err := os.Open(arname)
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if err != nil {
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t.Errorf("archive %s does not exist: %v", arname, err)
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return
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}
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defer f.Close()
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// TODO(iant): put these in a shared package? But where?
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const (
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magic = "!<arch>\n"
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fmag = "`\n"
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namelen = 16
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datelen = 12
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uidlen = 6
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gidlen = 6
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modelen = 8
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sizelen = 10
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fmaglen = 2
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hdrlen = namelen + datelen + uidlen + gidlen + modelen + sizelen + fmaglen
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)
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type arhdr struct {
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name string
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date string
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uid string
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gid string
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mode string
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size string
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fmag string
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}
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var magbuf [len(magic)]byte
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if _, err := io.ReadFull(f, magbuf[:]); err != nil {
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t.Errorf("%s: archive too short", arname)
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return
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}
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if string(magbuf[:]) != magic {
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t.Errorf("%s: incorrect archive magic string %q", arname, magbuf)
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}
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off := int64(len(magic))
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for {
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if off&1 != 0 {
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var b [1]byte
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if _, err := f.Read(b[:]); err != nil {
|
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if err == io.EOF {
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break
|
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}
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t.Errorf("%s: error skipping alignment byte at %d: %v", arname, off, err)
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}
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off++
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}
|
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|
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var hdrbuf [hdrlen]byte
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if _, err := io.ReadFull(f, hdrbuf[:]); err != nil {
|
||
|
if err == io.EOF {
|
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break
|
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}
|
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t.Errorf("%s: error reading archive header at %d: %v", arname, off, err)
|
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return
|
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|
}
|
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|
|
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var hdr arhdr
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hdrslice := hdrbuf[:]
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set := func(len int, ps *string) {
|
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*ps = string(bytes.TrimSpace(hdrslice[:len]))
|
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hdrslice = hdrslice[len:]
|
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}
|
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set(namelen, &hdr.name)
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|
set(datelen, &hdr.date)
|
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|
set(uidlen, &hdr.uid)
|
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|
set(gidlen, &hdr.gid)
|
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|
set(modelen, &hdr.mode)
|
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set(sizelen, &hdr.size)
|
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hdr.fmag = string(hdrslice[:fmaglen])
|
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|
hdrslice = hdrslice[fmaglen:]
|
||
|
if len(hdrslice) != 0 {
|
||
|
t.Fatalf("internal error: len(hdrslice) == %d", len(hdrslice))
|
||
|
}
|
||
|
|
||
|
if hdr.fmag != fmag {
|
||
|
t.Errorf("%s: invalid fmagic value %q at %d", arname, hdr.fmag, off)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
size, err := strconv.ParseInt(hdr.size, 10, 64)
|
||
|
if err != nil {
|
||
|
t.Errorf("%s: error parsing size %q at %d: %v", arname, hdr.size, off, err)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
off += hdrlen
|
||
|
|
||
|
switch hdr.name {
|
||
|
case "__.SYMDEF", "/", "/SYM64/":
|
||
|
// The archive symbol map.
|
||
|
case "//", "ARFILENAMES/":
|
||
|
// The extended name table.
|
||
|
default:
|
||
|
// This should be an ELF object.
|
||
|
checkELFArchiveObject(t, arname, off, io.NewSectionReader(f, off, size))
|
||
|
}
|
||
|
|
||
|
off += size
|
||
|
if _, err := f.Seek(off, os.SEEK_SET); err != nil {
|
||
|
t.Errorf("%s: failed to seek to %d: %v", arname, off, err)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// checkELFArchiveObject checks an object in an ELF archive.
|
||
|
func checkELFArchiveObject(t *testing.T, arname string, off int64, obj io.ReaderAt) {
|
||
|
t.Helper()
|
||
|
|
||
|
ef, err := elf.NewFile(obj)
|
||
|
if err != nil {
|
||
|
t.Errorf("%s: failed to open ELF file at %d: %v", arname, off, err)
|
||
|
return
|
||
|
}
|
||
|
defer ef.Close()
|
||
|
|
||
|
// Verify section types.
|
||
|
for _, sec := range ef.Sections {
|
||
|
want := elf.SHT_NULL
|
||
|
switch sec.Name {
|
||
|
case ".text", ".data":
|
||
|
want = elf.SHT_PROGBITS
|
||
|
case ".bss":
|
||
|
want = elf.SHT_NOBITS
|
||
|
case ".symtab":
|
||
|
want = elf.SHT_SYMTAB
|
||
|
case ".strtab":
|
||
|
want = elf.SHT_STRTAB
|
||
|
case ".init_array":
|
||
|
want = elf.SHT_INIT_ARRAY
|
||
|
case ".fini_array":
|
||
|
want = elf.SHT_FINI_ARRAY
|
||
|
case ".preinit_array":
|
||
|
want = elf.SHT_PREINIT_ARRAY
|
||
|
}
|
||
|
if want != elf.SHT_NULL && sec.Type != want {
|
||
|
t.Errorf("%s: incorrect section type in elf file at %d for section %q: got %v want %v", arname, off, sec.Name, sec.Type, want)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestInstall(t *testing.T) {
|
||
|
if !testWork {
|
||
|
defer os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}
|
||
|
|
||
|
libgoa := "libgo.a"
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
libgoa = "liblibgo.a"
|
||
|
}
|
||
|
|
||
|
// Generate the p.h header file.
|
||
|
//
|
||
|
// 'go install -i -buildmode=c-archive ./libgo' would do that too, but that
|
||
|
// would also attempt to install transitive standard-library dependencies to
|
||
|
// GOROOT, and we cannot assume that GOROOT is writable. (A non-root user may
|
||
|
// be running this test in a GOROOT owned by root.)
|
||
|
genHeader(t, "p.h", "./p")
|
||
|
|
||
|
testInstall(t, "./testp1"+exeSuffix,
|
||
|
filepath.Join(libgodir, libgoa),
|
||
|
filepath.Join(libgodir, "libgo.h"),
|
||
|
"go", "install", "-buildmode=c-archive", "./libgo")
|
||
|
|
||
|
// Test building libgo other than installing it.
|
||
|
// Header files are now present.
|
||
|
testInstall(t, "./testp2"+exeSuffix, "libgo.a", "libgo.h",
|
||
|
"go", "build", "-buildmode=c-archive", filepath.Join(".", "libgo", "libgo.go"))
|
||
|
|
||
|
testInstall(t, "./testp3"+exeSuffix, "libgo.a", "libgo.h",
|
||
|
"go", "build", "-buildmode=c-archive", "-o", "libgo.a", "./libgo")
|
||
|
}
|
||
|
|
||
|
func TestEarlySignalHandler(t *testing.T) {
|
||
|
switch GOOS {
|
||
|
case "darwin", "ios":
|
||
|
switch GOARCH {
|
||
|
case "arm64":
|
||
|
t.Skipf("skipping on %s/%s; see https://golang.org/issue/13701", GOOS, GOARCH)
|
||
|
}
|
||
|
case "windows":
|
||
|
t.Skip("skipping signal test on Windows")
|
||
|
}
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("libgo2.a")
|
||
|
os.Remove("libgo2.h")
|
||
|
os.Remove("testp" + exeSuffix)
|
||
|
os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo2.a", "./libgo2")
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo2.h")
|
||
|
checkArchive(t, "libgo2.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp"+exeSuffix, "main2.c", "libgo2.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
darwin := "0"
|
||
|
if runtime.GOOS == "darwin" {
|
||
|
darwin = "1"
|
||
|
}
|
||
|
cmd = exec.Command(bin[0], append(bin[1:], darwin)...)
|
||
|
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestSignalForwarding(t *testing.T) {
|
||
|
checkSignalForwardingTest(t)
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("libgo2.a")
|
||
|
os.Remove("libgo2.h")
|
||
|
os.Remove("testp" + exeSuffix)
|
||
|
os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo2.a", "./libgo2")
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo2.h")
|
||
|
checkArchive(t, "libgo2.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp"+exeSuffix, "main5.c", "libgo2.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
cmd = exec.Command(bin[0], append(bin[1:], "1")...)
|
||
|
|
||
|
out, err := cmd.CombinedOutput()
|
||
|
t.Logf("%v\n%s", cmd.Args, out)
|
||
|
expectSignal(t, err, syscall.SIGSEGV)
|
||
|
|
||
|
// SIGPIPE is never forwarded on darwin. See golang.org/issue/33384.
|
||
|
if runtime.GOOS != "darwin" && runtime.GOOS != "ios" {
|
||
|
// Test SIGPIPE forwarding
|
||
|
cmd = exec.Command(bin[0], append(bin[1:], "3")...)
|
||
|
|
||
|
out, err = cmd.CombinedOutput()
|
||
|
if len(out) > 0 {
|
||
|
t.Logf("%s", out)
|
||
|
}
|
||
|
expectSignal(t, err, syscall.SIGPIPE)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestSignalForwardingExternal(t *testing.T) {
|
||
|
if GOOS == "freebsd" || GOOS == "aix" {
|
||
|
t.Skipf("skipping on %s/%s; signal always goes to the Go runtime", GOOS, GOARCH)
|
||
|
} else if GOOS == "darwin" && GOARCH == "amd64" {
|
||
|
t.Skipf("skipping on %s/%s: runtime does not permit SI_USER SIGSEGV", GOOS, GOARCH)
|
||
|
}
|
||
|
checkSignalForwardingTest(t)
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("libgo2.a")
|
||
|
os.Remove("libgo2.h")
|
||
|
os.Remove("testp" + exeSuffix)
|
||
|
os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo2.a", "./libgo2")
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo2.h")
|
||
|
checkArchive(t, "libgo2.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp"+exeSuffix, "main5.c", "libgo2.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
// We want to send the process a signal and see if it dies.
|
||
|
// Normally the signal goes to the C thread, the Go signal
|
||
|
// handler picks it up, sees that it is running in a C thread,
|
||
|
// and the program dies. Unfortunately, occasionally the
|
||
|
// signal is delivered to a Go thread, which winds up
|
||
|
// discarding it because it was sent by another program and
|
||
|
// there is no Go handler for it. To avoid this, run the
|
||
|
// program several times in the hopes that it will eventually
|
||
|
// fail.
|
||
|
const tries = 20
|
||
|
for i := 0; i < tries; i++ {
|
||
|
cmd = exec.Command(bin[0], append(bin[1:], "2")...)
|
||
|
|
||
|
stderr, err := cmd.StderrPipe()
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
defer stderr.Close()
|
||
|
|
||
|
r := bufio.NewReader(stderr)
|
||
|
|
||
|
err = cmd.Start()
|
||
|
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
// Wait for trigger to ensure that the process is started.
|
||
|
ok, err := r.ReadString('\n')
|
||
|
|
||
|
// Verify trigger.
|
||
|
if err != nil || ok != "OK\n" {
|
||
|
t.Fatalf("Did not receive OK signal")
|
||
|
}
|
||
|
|
||
|
// Give the program a chance to enter the sleep function.
|
||
|
time.Sleep(time.Millisecond)
|
||
|
|
||
|
cmd.Process.Signal(syscall.SIGSEGV)
|
||
|
|
||
|
err = cmd.Wait()
|
||
|
|
||
|
if err == nil {
|
||
|
continue
|
||
|
}
|
||
|
|
||
|
if expectSignal(t, err, syscall.SIGSEGV) {
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
|
||
|
t.Errorf("program succeeded unexpectedly %d times", tries)
|
||
|
}
|
||
|
|
||
|
// checkSignalForwardingTest calls t.Skip if the SignalForwarding test
|
||
|
// doesn't work on this platform.
|
||
|
func checkSignalForwardingTest(t *testing.T) {
|
||
|
switch GOOS {
|
||
|
case "darwin", "ios":
|
||
|
switch GOARCH {
|
||
|
case "arm64":
|
||
|
t.Skipf("skipping on %s/%s; see https://golang.org/issue/13701", GOOS, GOARCH)
|
||
|
}
|
||
|
case "windows":
|
||
|
t.Skip("skipping signal test on Windows")
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// expectSignal checks that err, the exit status of a test program,
|
||
|
// shows a failure due to a specific signal. Returns whether we found
|
||
|
// the expected signal.
|
||
|
func expectSignal(t *testing.T, err error, sig syscall.Signal) bool {
|
||
|
if err == nil {
|
||
|
t.Error("test program succeeded unexpectedly")
|
||
|
} else if ee, ok := err.(*exec.ExitError); !ok {
|
||
|
t.Errorf("error (%v) has type %T; expected exec.ExitError", err, err)
|
||
|
} else if ws, ok := ee.Sys().(syscall.WaitStatus); !ok {
|
||
|
t.Errorf("error.Sys (%v) has type %T; expected syscall.WaitStatus", ee.Sys(), ee.Sys())
|
||
|
} else if !ws.Signaled() || ws.Signal() != sig {
|
||
|
t.Errorf("got %v; expected signal %v", ee, sig)
|
||
|
} else {
|
||
|
return true
|
||
|
}
|
||
|
return false
|
||
|
}
|
||
|
|
||
|
func TestOsSignal(t *testing.T) {
|
||
|
switch GOOS {
|
||
|
case "windows":
|
||
|
t.Skip("skipping signal test on Windows")
|
||
|
}
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("libgo3.a")
|
||
|
os.Remove("libgo3.h")
|
||
|
os.Remove("testp" + exeSuffix)
|
||
|
os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo3.a", "./libgo3")
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo3.h")
|
||
|
checkArchive(t, "libgo3.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp"+exeSuffix, "main3.c", "libgo3.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
if out, err := exec.Command(bin[0], bin[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestSigaltstack(t *testing.T) {
|
||
|
switch GOOS {
|
||
|
case "windows":
|
||
|
t.Skip("skipping signal test on Windows")
|
||
|
}
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("libgo4.a")
|
||
|
os.Remove("libgo4.h")
|
||
|
os.Remove("testp" + exeSuffix)
|
||
|
os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo4.a", "./libgo4")
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo4.h")
|
||
|
checkArchive(t, "libgo4.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp"+exeSuffix, "main4.c", "libgo4.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
if out, err := exec.Command(bin[0], bin[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
const testar = `#!/usr/bin/env bash
|
||
|
while [[ $1 == -* ]] >/dev/null; do
|
||
|
shift
|
||
|
done
|
||
|
echo "testar" > $1
|
||
|
echo "testar" > PWD/testar.ran
|
||
|
`
|
||
|
|
||
|
func TestExtar(t *testing.T) {
|
||
|
switch GOOS {
|
||
|
case "windows":
|
||
|
t.Skip("skipping signal test on Windows")
|
||
|
}
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
t.Skip("skipping -extar test when using gccgo")
|
||
|
}
|
||
|
if runtime.GOOS == "ios" {
|
||
|
t.Skip("shell scripts are not executable on iOS hosts")
|
||
|
}
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("libgo4.a")
|
||
|
os.Remove("libgo4.h")
|
||
|
os.Remove("testar")
|
||
|
os.Remove("testar.ran")
|
||
|
os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
os.Remove("testar")
|
||
|
dir, err := os.Getwd()
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
s := strings.Replace(testar, "PWD", dir, 1)
|
||
|
if err := os.WriteFile("testar", []byte(s), 0777); err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-ldflags=-extar="+filepath.Join(dir, "testar"), "-o", "libgo4.a", "./libgo4")
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo4.h")
|
||
|
|
||
|
if _, err := os.Stat("testar.ran"); err != nil {
|
||
|
if os.IsNotExist(err) {
|
||
|
t.Error("testar does not exist after go build")
|
||
|
} else {
|
||
|
t.Errorf("error checking testar: %v", err)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func TestPIE(t *testing.T) {
|
||
|
switch GOOS {
|
||
|
case "windows", "darwin", "ios", "plan9":
|
||
|
t.Skipf("skipping PIE test on %s", GOOS)
|
||
|
}
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("testp" + exeSuffix)
|
||
|
os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
// Generate the p.h header file.
|
||
|
//
|
||
|
// 'go install -i -buildmode=c-archive ./libgo' would do that too, but that
|
||
|
// would also attempt to install transitive standard-library dependencies to
|
||
|
// GOROOT, and we cannot assume that GOROOT is writable. (A non-root user may
|
||
|
// be running this test in a GOROOT owned by root.)
|
||
|
genHeader(t, "p.h", "./p")
|
||
|
|
||
|
cmd := exec.Command("go", "install", "-buildmode=c-archive", "./libgo")
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
libgoa := "libgo.a"
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
libgoa = "liblibgo.a"
|
||
|
}
|
||
|
|
||
|
ccArgs := append(cc, "-fPIE", "-pie", "-o", "testp"+exeSuffix, "main.c", "main_unix.c", filepath.Join(libgodir, libgoa))
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
if out, err := exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
binArgs := append(bin, "arg1", "arg2")
|
||
|
cmd = exec.Command(binArgs[0], binArgs[1:]...)
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
cmd.Env = append(os.Environ(), "GCCGO=1")
|
||
|
}
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
if GOOS != "aix" {
|
||
|
f, err := elf.Open("testp" + exeSuffix)
|
||
|
if err != nil {
|
||
|
t.Fatal("elf.Open failed: ", err)
|
||
|
}
|
||
|
defer f.Close()
|
||
|
if hasDynTag(t, f, elf.DT_TEXTREL) {
|
||
|
t.Errorf("%s has DT_TEXTREL flag", "testp"+exeSuffix)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func hasDynTag(t *testing.T, f *elf.File, tag elf.DynTag) bool {
|
||
|
ds := f.SectionByType(elf.SHT_DYNAMIC)
|
||
|
if ds == nil {
|
||
|
t.Error("no SHT_DYNAMIC section")
|
||
|
return false
|
||
|
}
|
||
|
d, err := ds.Data()
|
||
|
if err != nil {
|
||
|
t.Errorf("can't read SHT_DYNAMIC contents: %v", err)
|
||
|
return false
|
||
|
}
|
||
|
for len(d) > 0 {
|
||
|
var t elf.DynTag
|
||
|
switch f.Class {
|
||
|
case elf.ELFCLASS32:
|
||
|
t = elf.DynTag(f.ByteOrder.Uint32(d[:4]))
|
||
|
d = d[8:]
|
||
|
case elf.ELFCLASS64:
|
||
|
t = elf.DynTag(f.ByteOrder.Uint64(d[:8]))
|
||
|
d = d[16:]
|
||
|
}
|
||
|
if t == tag {
|
||
|
return true
|
||
|
}
|
||
|
}
|
||
|
return false
|
||
|
}
|
||
|
|
||
|
func TestSIGPROF(t *testing.T) {
|
||
|
switch GOOS {
|
||
|
case "windows", "plan9":
|
||
|
t.Skipf("skipping SIGPROF test on %s", GOOS)
|
||
|
case "darwin", "ios":
|
||
|
t.Skipf("skipping SIGPROF test on %s; see https://golang.org/issue/19320", GOOS)
|
||
|
}
|
||
|
|
||
|
t.Parallel()
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("testp6" + exeSuffix)
|
||
|
os.Remove("libgo6.a")
|
||
|
os.Remove("libgo6.h")
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo6.a", "./libgo6")
|
||
|
out, err := cmd.CombinedOutput()
|
||
|
t.Logf("%v\n%s", cmd.Args, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo6.h")
|
||
|
checkArchive(t, "libgo6.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp6"+exeSuffix, "main6.c", "libgo6.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
out, err = exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", ccArgs, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
argv := cmdToRun("./testp6")
|
||
|
cmd = exec.Command(argv[0], argv[1:]...)
|
||
|
out, err = cmd.CombinedOutput()
|
||
|
t.Logf("%v\n%s", argv, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// TestCompileWithoutShared tests that if we compile code without the
|
||
|
// -shared option, we can put it into an archive. When we use the go
|
||
|
// tool with -buildmode=c-archive, it passes -shared to the compiler,
|
||
|
// so we override that. The go tool doesn't work this way, but Bazel
|
||
|
// will likely do it in the future. And it ought to work. This test
|
||
|
// was added because at one time it did not work on PPC Linux.
|
||
|
func TestCompileWithoutShared(t *testing.T) {
|
||
|
// For simplicity, reuse the signal forwarding test.
|
||
|
checkSignalForwardingTest(t)
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("libgo2.a")
|
||
|
os.Remove("libgo2.h")
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-gcflags=-shared=false", "-o", "libgo2.a", "./libgo2")
|
||
|
out, err := cmd.CombinedOutput()
|
||
|
t.Logf("%v\n%s", cmd.Args, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo2.h")
|
||
|
checkArchive(t, "libgo2.a")
|
||
|
|
||
|
exe := "./testnoshared" + exeSuffix
|
||
|
|
||
|
// In some cases, -no-pie is needed here, but not accepted everywhere. First try
|
||
|
// if -no-pie is accepted. See #22126.
|
||
|
ccArgs := append(cc, "-o", exe, "-no-pie", "main5.c", "libgo2.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
out, err = exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", ccArgs, out)
|
||
|
|
||
|
// If -no-pie unrecognized, try -nopie if this is possibly clang
|
||
|
if err != nil && bytes.Contains(out, []byte("unknown")) && !strings.Contains(cc[0], "gcc") {
|
||
|
ccArgs = append(cc, "-o", exe, "-nopie", "main5.c", "libgo2.a")
|
||
|
out, err = exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", ccArgs, out)
|
||
|
}
|
||
|
|
||
|
// Don't use either -no-pie or -nopie
|
||
|
if err != nil && bytes.Contains(out, []byte("unrecognized")) {
|
||
|
ccArgs = append(cc, "-o", exe, "main5.c", "libgo2.a")
|
||
|
out, err = exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", ccArgs, out)
|
||
|
}
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
if !testWork {
|
||
|
defer os.Remove(exe)
|
||
|
}
|
||
|
|
||
|
binArgs := append(cmdToRun(exe), "1")
|
||
|
out, err = exec.Command(binArgs[0], binArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", binArgs, out)
|
||
|
expectSignal(t, err, syscall.SIGSEGV)
|
||
|
|
||
|
// SIGPIPE is never forwarded on darwin. See golang.org/issue/33384.
|
||
|
if runtime.GOOS != "darwin" && runtime.GOOS != "ios" {
|
||
|
binArgs := append(cmdToRun(exe), "3")
|
||
|
out, err = exec.Command(binArgs[0], binArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", binArgs, out)
|
||
|
expectSignal(t, err, syscall.SIGPIPE)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Test that installing a second time recreates the header file.
|
||
|
func TestCachedInstall(t *testing.T) {
|
||
|
if !testWork {
|
||
|
defer os.RemoveAll(filepath.Join(GOPATH, "pkg"))
|
||
|
}
|
||
|
|
||
|
h := filepath.Join(libgodir, "libgo.h")
|
||
|
|
||
|
buildcmd := []string{"go", "install", "-buildmode=c-archive", "./libgo"}
|
||
|
|
||
|
cmd := exec.Command(buildcmd[0], buildcmd[1:]...)
|
||
|
t.Log(buildcmd)
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
if _, err := os.Stat(h); err != nil {
|
||
|
t.Errorf("libgo.h not installed: %v", err)
|
||
|
}
|
||
|
|
||
|
if err := os.Remove(h); err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
cmd = exec.Command(buildcmd[0], buildcmd[1:]...)
|
||
|
t.Log(buildcmd)
|
||
|
if out, err := cmd.CombinedOutput(); err != nil {
|
||
|
t.Logf("%s", out)
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
if _, err := os.Stat(h); err != nil {
|
||
|
t.Errorf("libgo.h not installed in second run: %v", err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Issue 35294.
|
||
|
func TestManyCalls(t *testing.T) {
|
||
|
t.Parallel()
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("testp7" + exeSuffix)
|
||
|
os.Remove("libgo7.a")
|
||
|
os.Remove("libgo7.h")
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo7.a", "./libgo7")
|
||
|
out, err := cmd.CombinedOutput()
|
||
|
t.Logf("%v\n%s", cmd.Args, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo7.h")
|
||
|
checkArchive(t, "libgo7.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp7"+exeSuffix, "main7.c", "libgo7.a")
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
ccArgs = append(ccArgs, "-lgo")
|
||
|
}
|
||
|
out, err = exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", ccArgs, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
argv := cmdToRun("./testp7")
|
||
|
cmd = exec.Command(argv[0], argv[1:]...)
|
||
|
sb := new(strings.Builder)
|
||
|
cmd.Stdout = sb
|
||
|
cmd.Stderr = sb
|
||
|
if err := cmd.Start(); err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
timer := time.AfterFunc(time.Minute,
|
||
|
func() {
|
||
|
t.Error("test program timed out")
|
||
|
cmd.Process.Kill()
|
||
|
},
|
||
|
)
|
||
|
defer timer.Stop()
|
||
|
|
||
|
err = cmd.Wait()
|
||
|
t.Logf("%v\n%s", cmd.Args, sb)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Issue 49288.
|
||
|
func TestPreemption(t *testing.T) {
|
||
|
if runtime.Compiler == "gccgo" {
|
||
|
t.Skip("skipping asynchronous preemption test with gccgo")
|
||
|
}
|
||
|
|
||
|
t.Parallel()
|
||
|
|
||
|
if !testWork {
|
||
|
defer func() {
|
||
|
os.Remove("testp8" + exeSuffix)
|
||
|
os.Remove("libgo8.a")
|
||
|
os.Remove("libgo8.h")
|
||
|
}()
|
||
|
}
|
||
|
|
||
|
cmd := exec.Command("go", "build", "-buildmode=c-archive", "-o", "libgo8.a", "./libgo8")
|
||
|
out, err := cmd.CombinedOutput()
|
||
|
t.Logf("%v\n%s", cmd.Args, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
checkLineComments(t, "libgo8.h")
|
||
|
checkArchive(t, "libgo8.a")
|
||
|
|
||
|
ccArgs := append(cc, "-o", "testp8"+exeSuffix, "main8.c", "libgo8.a")
|
||
|
out, err = exec.Command(ccArgs[0], ccArgs[1:]...).CombinedOutput()
|
||
|
t.Logf("%v\n%s", ccArgs, out)
|
||
|
if err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
argv := cmdToRun("./testp8")
|
||
|
cmd = exec.Command(argv[0], argv[1:]...)
|
||
|
sb := new(strings.Builder)
|
||
|
cmd.Stdout = sb
|
||
|
cmd.Stderr = sb
|
||
|
if err := cmd.Start(); err != nil {
|
||
|
t.Fatal(err)
|
||
|
}
|
||
|
|
||
|
timer := time.AfterFunc(time.Minute,
|
||
|
func() {
|
||
|
t.Error("test program timed out")
|
||
|
cmd.Process.Kill()
|
||
|
},
|
||
|
)
|
||
|
defer timer.Stop()
|
||
|
|
||
|
err = cmd.Wait()
|
||
|
t.Logf("%v\n%s", cmd.Args, sb)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
}
|
||
|
}
|