| // Copyright 2015 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. |
| |
| package main |
| |
| import ( |
| "bytes" |
| "flag" |
| "fmt" |
| "io/fs" |
| "log" |
| "os" |
| "os/exec" |
| "path/filepath" |
| "reflect" |
| "regexp" |
| "runtime" |
| "strconv" |
| "strings" |
| "sync" |
| "time" |
| ) |
| |
| func cmdtest() { |
| gogcflags = os.Getenv("GO_GCFLAGS") |
| setNoOpt() |
| |
| var t tester |
| |
| var noRebuild bool |
| flag.BoolVar(&t.listMode, "list", false, "list available tests") |
| flag.BoolVar(&t.rebuild, "rebuild", false, "rebuild everything first") |
| flag.BoolVar(&noRebuild, "no-rebuild", false, "overrides -rebuild (historical dreg)") |
| flag.BoolVar(&t.keepGoing, "k", false, "keep going even when error occurred") |
| flag.BoolVar(&t.race, "race", false, "run in race builder mode (different set of tests)") |
| flag.BoolVar(&t.compileOnly, "compile-only", false, "compile tests, but don't run them. This is for some builders. Not all dist tests respect this flag, but most do.") |
| flag.StringVar(&t.banner, "banner", "##### ", "banner prefix; blank means no section banners") |
| flag.StringVar(&t.runRxStr, "run", "", |
| "run only those tests matching the regular expression; empty means to run all. "+ |
| "Special exception: if the string begins with '!', the match is inverted.") |
| flag.BoolVar(&t.msan, "msan", false, "run in memory sanitizer builder mode") |
| flag.BoolVar(&t.asan, "asan", false, "run in address sanitizer builder mode") |
| |
| xflagparse(-1) // any number of args |
| if noRebuild { |
| t.rebuild = false |
| } |
| |
| t.run() |
| } |
| |
| // tester executes cmdtest. |
| type tester struct { |
| race bool |
| msan bool |
| asan bool |
| listMode bool |
| rebuild bool |
| failed bool |
| keepGoing bool |
| compileOnly bool // just try to compile all tests, but no need to run |
| runRxStr string |
| runRx *regexp.Regexp |
| runRxWant bool // want runRx to match (true) or not match (false) |
| runNames []string // tests to run, exclusive with runRx; empty means all |
| banner string // prefix, or "" for none |
| lastHeading string // last dir heading printed |
| |
| short bool |
| cgoEnabled bool |
| partial bool |
| |
| goExe string // For host tests |
| goTmpDir string // For host tests |
| |
| tests []distTest |
| timeoutScale int |
| |
| worklist []*work |
| } |
| |
| type work struct { |
| dt *distTest |
| cmd *exec.Cmd |
| start chan bool |
| out []byte |
| err error |
| end chan bool |
| } |
| |
| // A distTest is a test run by dist test. |
| // Each test has a unique name and belongs to a group (heading) |
| type distTest struct { |
| name string // unique test name; may be filtered with -run flag |
| heading string // group section; this header is printed before the test is run. |
| fn func(*distTest) error |
| } |
| |
| func (t *tester) run() { |
| timelog("start", "dist test") |
| |
| os.Setenv("PATH", fmt.Sprintf("%s%c%s", gorootBin, os.PathListSeparator, os.Getenv("PATH"))) |
| |
| t.short = true |
| if v := os.Getenv("GO_TEST_SHORT"); v != "" { |
| short, err := strconv.ParseBool(v) |
| if err != nil { |
| fatalf("invalid GO_TEST_SHORT %q: %v", v, err) |
| } |
| t.short = short |
| } |
| |
| cmd := exec.Command(gorootBinGo, "env", "CGO_ENABLED", "GOEXE", "GOTMPDIR") |
| cmd.Stderr = new(bytes.Buffer) |
| slurp, err := cmd.Output() |
| if err != nil { |
| fatalf("Error running %s: %v\n%s", cmd, err, cmd.Stderr) |
| } |
| parts := strings.Split(string(slurp), "\n") |
| if len(parts) < 3 { |
| fatalf("Error running %s: output contains <3 lines\n%s", cmd, cmd.Stderr) |
| } |
| t.cgoEnabled, _ = strconv.ParseBool(parts[0]) |
| t.goExe = parts[1] |
| t.goTmpDir = parts[2] |
| |
| if flag.NArg() > 0 && t.runRxStr != "" { |
| fatalf("the -run regular expression flag is mutually exclusive with test name arguments") |
| } |
| |
| t.runNames = flag.Args() |
| |
| // Set GOTRACEBACK to system if the user didn't set a level explicitly. |
| // Since we're running tests for Go, we want as much detail as possible |
| // if something goes wrong. |
| // |
| // Set it before running any commands just in case something goes wrong. |
| if ok := isEnvSet("GOTRACEBACK"); !ok { |
| if err := os.Setenv("GOTRACEBACK", "system"); err != nil { |
| if t.keepGoing { |
| log.Printf("Failed to set GOTRACEBACK: %v", err) |
| } else { |
| fatalf("Failed to set GOTRACEBACK: %v", err) |
| } |
| } |
| } |
| |
| if t.rebuild { |
| t.out("Building packages and commands.") |
| // Force rebuild the whole toolchain. |
| goInstall(toolenv(), gorootBinGo, append([]string{"-a"}, toolchain...)...) |
| } |
| |
| if !t.listMode { |
| if builder := os.Getenv("GO_BUILDER_NAME"); builder == "" { |
| // Ensure that installed commands are up to date, even with -no-rebuild, |
| // so that tests that run commands end up testing what's actually on disk. |
| // If everything is up-to-date, this is a no-op. |
| // We first build the toolchain twice to allow it to converge, |
| // as when we first bootstrap. |
| // See cmdbootstrap for a description of the overall process. |
| // |
| // On the builders, we skip this step: we assume that 'dist test' is |
| // already using the result of a clean build, and because of test sharding |
| // and virtualization we usually start with a clean GOCACHE, so we would |
| // end up rebuilding large parts of the standard library that aren't |
| // otherwise relevant to the actual set of packages under test. |
| goInstall(toolenv(), gorootBinGo, toolchain...) |
| goInstall(toolenv(), gorootBinGo, toolchain...) |
| goInstall(toolenv(), gorootBinGo, "cmd") |
| } |
| } |
| |
| t.timeoutScale = 1 |
| if s := os.Getenv("GO_TEST_TIMEOUT_SCALE"); s != "" { |
| t.timeoutScale, err = strconv.Atoi(s) |
| if err != nil { |
| fatalf("failed to parse $GO_TEST_TIMEOUT_SCALE = %q as integer: %v", s, err) |
| } |
| } |
| |
| if t.runRxStr != "" { |
| if t.runRxStr[0] == '!' { |
| t.runRxWant = false |
| t.runRxStr = t.runRxStr[1:] |
| } else { |
| t.runRxWant = true |
| } |
| t.runRx = regexp.MustCompile(t.runRxStr) |
| } |
| |
| t.registerTests() |
| if t.listMode { |
| for _, tt := range t.tests { |
| fmt.Println(tt.name) |
| } |
| return |
| } |
| |
| for _, name := range t.runNames { |
| if !t.isRegisteredTestName(name) { |
| fatalf("unknown test %q", name) |
| } |
| } |
| |
| // On a few builders, make GOROOT unwritable to catch tests writing to it. |
| if strings.HasPrefix(os.Getenv("GO_BUILDER_NAME"), "linux-") { |
| if os.Getuid() == 0 { |
| // Don't bother making GOROOT unwritable: |
| // we're running as root, so permissions would have no effect. |
| } else { |
| xatexit(t.makeGOROOTUnwritable()) |
| } |
| } |
| |
| if err := t.maybeLogMetadata(); err != nil { |
| t.failed = true |
| if t.keepGoing { |
| log.Printf("Failed logging metadata: %v", err) |
| } else { |
| fatalf("Failed logging metadata: %v", err) |
| } |
| } |
| |
| for _, dt := range t.tests { |
| if !t.shouldRunTest(dt.name) { |
| t.partial = true |
| continue |
| } |
| dt := dt // dt used in background after this iteration |
| if err := dt.fn(&dt); err != nil { |
| t.runPending(&dt) // in case that hasn't been done yet |
| t.failed = true |
| if t.keepGoing { |
| log.Printf("Failed: %v", err) |
| } else { |
| fatalf("Failed: %v", err) |
| } |
| } |
| } |
| t.runPending(nil) |
| timelog("end", "dist test") |
| |
| if t.failed { |
| fmt.Println("\nFAILED") |
| xexit(1) |
| } else if t.partial { |
| fmt.Println("\nALL TESTS PASSED (some were excluded)") |
| } else { |
| fmt.Println("\nALL TESTS PASSED") |
| } |
| } |
| |
| func (t *tester) shouldRunTest(name string) bool { |
| if t.runRx != nil { |
| return t.runRx.MatchString(name) == t.runRxWant |
| } |
| if len(t.runNames) == 0 { |
| return true |
| } |
| for _, runName := range t.runNames { |
| if runName == name { |
| return true |
| } |
| } |
| return false |
| } |
| |
| func (t *tester) maybeLogMetadata() error { |
| if t.compileOnly { |
| // We need to run a subprocess to log metadata. Don't do that |
| // on compile-only runs. |
| return nil |
| } |
| t.out("Test execution environment.") |
| // Helper binary to print system metadata (CPU model, etc). This is a |
| // separate binary from dist so it need not build with the bootstrap |
| // toolchain. |
| // |
| // TODO(prattmic): If we split dist bootstrap and dist test then this |
| // could be simplified to directly use internal/sysinfo here. |
| return t.dirCmd(filepath.Join(goroot, "src/cmd/internal/metadata"), gorootBinGo, []string{"run", "main.go"}).Run() |
| } |
| |
| // goTest represents all options to a "go test" command. The final command will |
| // combine configuration from goTest and tester flags. |
| type goTest struct { |
| timeout time.Duration // If non-zero, override timeout |
| short bool // If true, force -short |
| tags []string // Build tags |
| race bool // Force -race |
| bench bool // Run benchmarks (briefly), not tests. |
| runTests string // Regexp of tests to run |
| cpu string // If non-empty, -cpu flag |
| goroot string // If non-empty, use alternate goroot for go command |
| |
| gcflags string // If non-empty, build with -gcflags=all=X |
| ldflags string // If non-empty, build with -ldflags=X |
| buildmode string // If non-empty, -buildmode flag |
| |
| dir string // If non-empty, run in GOROOT/src-relative directory dir |
| env []string // Environment variables to add, as KEY=VAL. KEY= unsets a variable |
| |
| // We have both pkg and pkgs as a convenience. Both may be set, in which |
| // case they will be combined. If both are empty, the default is ".". |
| pkgs []string // Multiple packages to test |
| pkg string // A single package to test |
| |
| testFlags []string // Additional flags accepted by this test |
| } |
| |
| // bgCommand returns a go test Cmd. The result has Stdout and Stderr set to nil |
| // and is intended to be added to the work queue. |
| func (opts *goTest) bgCommand(t *tester) *exec.Cmd { |
| goCmd, build, run, pkgs, setupCmd := opts.buildArgs(t) |
| |
| // Combine the flags. |
| args := append([]string{"test"}, build...) |
| if t.compileOnly { |
| // We can't pass -c with multiple packages, so run the tests but |
| // tell them not to do anything. |
| args = append(args, "-run=^$") |
| } else { |
| args = append(args, run...) |
| } |
| args = append(args, pkgs...) |
| if !t.compileOnly { |
| args = append(args, opts.testFlags...) |
| } |
| |
| cmd := exec.Command(goCmd, args...) |
| setupCmd(cmd) |
| |
| return cmd |
| } |
| |
| // command returns a go test Cmd intended to be run immediately. |
| func (opts *goTest) command(t *tester) *exec.Cmd { |
| cmd := opts.bgCommand(t) |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| return cmd |
| } |
| |
| func (opts *goTest) run(t *tester) error { |
| return opts.command(t).Run() |
| } |
| |
| // runHostTest runs a test that should be built and run on the host GOOS/GOARCH, |
| // but run with GOOS/GOARCH set to the target GOOS/GOARCH. This is for tests |
| // that do nothing but compile and run other binaries. If the host and target |
| // are different, then the assumption is that the target is running in an |
| // emulator and does not have a Go toolchain at all, so the test needs to run on |
| // the host, but its resulting binaries will be run through a go_exec wrapper |
| // that runs them on the target. |
| func (opts *goTest) runHostTest(t *tester) error { |
| goCmd, build, run, pkgs, setupCmd := opts.buildArgs(t) |
| |
| // Build the host test binary |
| if len(pkgs) != 1 { |
| // We can't compile more than one package. |
| panic("host tests must have a single test package") |
| } |
| if len(opts.env) != 0 { |
| // It's not clear if these are for the host or the target. |
| panic("host tests must not have environment variables") |
| } |
| |
| f, err := os.CreateTemp(t.goTmpDir, "test.test-*"+t.goExe) |
| if err != nil { |
| fatalf("failed to create temporary file: %s", err) |
| } |
| bin := f.Name() |
| f.Close() |
| xatexit(func() { os.Remove(bin) }) |
| |
| args := append([]string{"test", "-c", "-o", bin}, build...) |
| args = append(args, pkgs...) |
| cmd := exec.Command(goCmd, args...) |
| setupCmd(cmd) |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| setEnv(cmd, "GOARCH", gohostarch) |
| setEnv(cmd, "GOOS", gohostos) |
| if vflag > 1 { |
| errprintf("%s\n", cmd) |
| } |
| if err := cmd.Run(); err != nil { |
| return err |
| } |
| |
| if t.compileOnly { |
| return nil |
| } |
| |
| // Transform run flags to be passed directly to a test binary. |
| for i, f := range run { |
| if !strings.HasPrefix(f, "-") { |
| panic("run flag does not start with -: " + f) |
| } |
| run[i] = "-test." + f[1:] |
| } |
| |
| // Run the test |
| args = append(run, opts.testFlags...) |
| cmd = exec.Command(bin, args...) |
| setupCmd(cmd) |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| if vflag > 1 { |
| errprintf("%s\n", cmd) |
| } |
| return cmd.Run() |
| } |
| |
| // buildArgs is in internal helper for goTest that constructs the elements of |
| // the "go test" command line. goCmd is the path to the go command to use. build |
| // is the flags for building the test. run is the flags for running the test. |
| // pkgs is the list of packages to build and run. |
| // |
| // The caller is responsible for adding opts.testFlags, and must call setupCmd |
| // on the resulting exec.Cmd to set its directory and environment. |
| func (opts *goTest) buildArgs(t *tester) (goCmd string, build, run, pkgs []string, setupCmd func(*exec.Cmd)) { |
| goCmd = gorootBinGo |
| if opts.goroot != "" { |
| goCmd = filepath.Join(opts.goroot, "bin", "go") |
| } |
| |
| run = append(run, "-count=1") // Disallow caching |
| if opts.timeout != 0 { |
| d := opts.timeout * time.Duration(t.timeoutScale) |
| run = append(run, "-timeout="+d.String()) |
| } |
| if opts.short || t.short { |
| run = append(run, "-short") |
| } |
| var tags []string |
| if t.iOS() { |
| tags = append(tags, "lldb") |
| } |
| if noOpt { |
| tags = append(tags, "noopt") |
| } |
| tags = append(tags, opts.tags...) |
| if len(tags) > 0 { |
| build = append(build, "-tags="+strings.Join(tags, ",")) |
| } |
| if t.race || opts.race { |
| build = append(build, "-race") |
| } |
| if t.msan { |
| build = append(build, "-msan") |
| } |
| if t.asan { |
| build = append(build, "-asan") |
| } |
| if opts.bench { |
| // Run no tests. |
| run = append(run, "-run=^$") |
| // Run benchmarks as a smoke test |
| run = append(run, "-bench=.*", "-benchtime=.1s") |
| } else if opts.runTests != "" { |
| run = append(run, "-run="+opts.runTests) |
| } |
| if opts.cpu != "" { |
| run = append(run, "-cpu="+opts.cpu) |
| } |
| |
| if opts.gcflags != "" { |
| build = append(build, "-gcflags=all="+opts.gcflags) |
| } |
| if opts.ldflags != "" { |
| build = append(build, "-ldflags="+opts.ldflags) |
| } |
| if opts.buildmode != "" { |
| build = append(build, "-buildmode="+opts.buildmode) |
| } |
| |
| pkgs = opts.pkgs |
| if opts.pkg != "" { |
| pkgs = append(pkgs[:len(pkgs):len(pkgs)], opts.pkg) |
| } |
| if len(pkgs) == 0 { |
| pkgs = []string{"."} |
| } |
| |
| thisGoroot := goroot |
| if opts.goroot != "" { |
| thisGoroot = opts.goroot |
| } |
| var dir string |
| if opts.dir != "" { |
| if filepath.IsAbs(opts.dir) { |
| panic("dir must be relative, got: " + opts.dir) |
| } |
| dir = filepath.Join(thisGoroot, "src", opts.dir) |
| } else { |
| dir = filepath.Join(thisGoroot, "src") |
| } |
| setupCmd = func(cmd *exec.Cmd) { |
| setDir(cmd, dir) |
| if len(opts.env) != 0 { |
| for _, kv := range opts.env { |
| if i := strings.Index(kv, "="); i < 0 { |
| unsetEnv(cmd, kv[:len(kv)-1]) |
| } else { |
| setEnv(cmd, kv[:i], kv[i+1:]) |
| } |
| } |
| } |
| } |
| |
| return |
| } |
| |
| // ranGoTest and stdMatches are state closed over by the stdlib |
| // testing func in registerStdTest below. The tests are run |
| // sequentially, so there's no need for locks. |
| // |
| // ranGoBench and benchMatches are the same, but are only used |
| // in -race mode. |
| var ( |
| ranGoTest bool |
| stdMatches []string |
| |
| ranGoBench bool |
| benchMatches []string |
| ) |
| |
| func (t *tester) registerStdTest(pkg string) { |
| heading := "Testing packages." |
| testPrefix := "go_test:" |
| gcflags := gogcflags |
| |
| testName := testPrefix + pkg |
| if t.runRx == nil || t.runRx.MatchString(testName) == t.runRxWant { |
| stdMatches = append(stdMatches, pkg) |
| } |
| |
| t.tests = append(t.tests, distTest{ |
| name: testName, |
| heading: heading, |
| fn: func(dt *distTest) error { |
| if ranGoTest { |
| return nil |
| } |
| t.runPending(dt) |
| timelog("start", dt.name) |
| defer timelog("end", dt.name) |
| ranGoTest = true |
| |
| timeoutSec := 180 * time.Second |
| for _, pkg := range stdMatches { |
| if pkg == "cmd/go" { |
| timeoutSec *= 3 |
| break |
| } |
| } |
| return (&goTest{ |
| timeout: timeoutSec, |
| gcflags: gcflags, |
| pkgs: stdMatches, |
| }).run(t) |
| }, |
| }) |
| } |
| |
| func (t *tester) registerRaceBenchTest(pkg string) { |
| testName := "go_test_bench:" + pkg |
| if t.runRx == nil || t.runRx.MatchString(testName) == t.runRxWant { |
| benchMatches = append(benchMatches, pkg) |
| } |
| t.tests = append(t.tests, distTest{ |
| name: testName, |
| heading: "Running benchmarks briefly.", |
| fn: func(dt *distTest) error { |
| if ranGoBench { |
| return nil |
| } |
| t.runPending(dt) |
| timelog("start", dt.name) |
| defer timelog("end", dt.name) |
| ranGoBench = true |
| return (&goTest{ |
| timeout: 1200 * time.Second, // longer timeout for race with benchmarks |
| race: true, |
| bench: true, |
| cpu: "4", |
| pkgs: benchMatches, |
| }).run(t) |
| }, |
| }) |
| } |
| |
| func (t *tester) registerTests() { |
| // Fast path to avoid the ~1 second of `go list std cmd` when |
| // the caller lists specific tests to run. (as the continuous |
| // build coordinator does). |
| if len(t.runNames) > 0 { |
| for _, name := range t.runNames { |
| if strings.HasPrefix(name, "go_test:") { |
| t.registerStdTest(strings.TrimPrefix(name, "go_test:")) |
| } |
| if strings.HasPrefix(name, "go_test_bench:") { |
| t.registerRaceBenchTest(strings.TrimPrefix(name, "go_test_bench:")) |
| } |
| } |
| } else { |
| // Use a format string to only list packages and commands that have tests. |
| const format = "{{if (or .TestGoFiles .XTestGoFiles)}}{{.ImportPath}}{{end}}" |
| cmd := exec.Command(gorootBinGo, "list", "-f", format) |
| if t.race { |
| cmd.Args = append(cmd.Args, "-tags=race") |
| } |
| cmd.Args = append(cmd.Args, "std", "cmd") |
| cmd.Stderr = new(bytes.Buffer) |
| all, err := cmd.Output() |
| if err != nil { |
| fatalf("Error running go list std cmd: %v:\n%s", err, cmd.Stderr) |
| } |
| pkgs := strings.Fields(string(all)) |
| for _, pkg := range pkgs { |
| t.registerStdTest(pkg) |
| } |
| if t.race { |
| for _, pkg := range pkgs { |
| if t.packageHasBenchmarks(pkg) { |
| t.registerRaceBenchTest(pkg) |
| } |
| } |
| } |
| } |
| |
| if t.race { |
| return |
| } |
| |
| // Test the os/user package in the pure-Go mode too. |
| if !t.compileOnly { |
| t.registerTest("osusergo", "os/user with tag osusergo", |
| &goTest{ |
| timeout: 300 * time.Second, |
| tags: []string{"osusergo"}, |
| pkg: "os/user", |
| }) |
| } |
| |
| // Test ios/amd64 for the iOS simulator. |
| if goos == "darwin" && goarch == "amd64" && t.cgoEnabled { |
| t.registerTest("amd64ios", "GOOS=ios on darwin/amd64", |
| &goTest{ |
| timeout: 300 * time.Second, |
| runTests: "SystemRoots", |
| env: []string{"GOOS=ios", "CGO_ENABLED=1"}, |
| pkg: "crypto/x509", |
| }) |
| } |
| |
| // Runtime CPU tests. |
| if !t.compileOnly && goos != "js" { // js can't handle -cpu != 1 |
| t.registerTest("runtime:cpu124", "GOMAXPROCS=2 runtime -cpu=1,2,4 -quick", |
| &goTest{ |
| timeout: 300 * time.Second, |
| cpu: "1,2,4", |
| short: true, |
| testFlags: []string{"-quick"}, |
| // We set GOMAXPROCS=2 in addition to -cpu=1,2,4 in order to test runtime bootstrap code, |
| // creation of first goroutines and first garbage collections in the parallel setting. |
| env: []string{"GOMAXPROCS=2"}, |
| pkg: "runtime", |
| }) |
| } |
| |
| // morestack tests. We only run these on in long-test mode |
| // (with GO_TEST_SHORT=false) because the runtime test is |
| // already quite long and mayMoreStackMove makes it about |
| // twice as slow. |
| if !t.compileOnly && !t.short { |
| // hooks is the set of maymorestack hooks to test with. |
| hooks := []string{"mayMoreStackPreempt", "mayMoreStackMove"} |
| // pkgs is the set of test packages to run. |
| pkgs := []string{"runtime", "reflect", "sync"} |
| // hookPkgs is the set of package patterns to apply |
| // the maymorestack hook to. |
| hookPkgs := []string{"runtime/...", "reflect", "sync"} |
| // unhookPkgs is the set of package patterns to |
| // exclude from hookPkgs. |
| unhookPkgs := []string{"runtime/testdata/..."} |
| for _, hook := range hooks { |
| // Construct the build flags to use the |
| // maymorestack hook in the compiler and |
| // assembler. We pass this via the GOFLAGS |
| // environment variable so that it applies to |
| // both the test itself and to binaries built |
| // by the test. |
| goFlagsList := []string{} |
| for _, flag := range []string{"-gcflags", "-asmflags"} { |
| for _, hookPkg := range hookPkgs { |
| goFlagsList = append(goFlagsList, flag+"="+hookPkg+"=-d=maymorestack=runtime."+hook) |
| } |
| for _, unhookPkg := range unhookPkgs { |
| goFlagsList = append(goFlagsList, flag+"="+unhookPkg+"=") |
| } |
| } |
| goFlags := strings.Join(goFlagsList, " ") |
| |
| for _, pkg := range pkgs { |
| t.registerTest(hook+":"+pkg, "maymorestack="+hook, |
| &goTest{ |
| timeout: 600 * time.Second, |
| short: true, |
| env: []string{"GOFLAGS=" + goFlags}, |
| pkg: pkg, |
| }) |
| } |
| } |
| } |
| |
| // On the builders only, test that a moved GOROOT still works. |
| // Fails on iOS because CC_FOR_TARGET refers to clangwrap.sh |
| // in the unmoved GOROOT. |
| // Fails on Android and js/wasm with an exec format error. |
| // Fails on plan9 with "cannot find GOROOT" (issue #21016). |
| if os.Getenv("GO_BUILDER_NAME") != "" && goos != "android" && !t.iOS() && goos != "plan9" && goos != "js" { |
| t.tests = append(t.tests, distTest{ |
| name: "moved_goroot", |
| heading: "moved GOROOT", |
| fn: func(dt *distTest) error { |
| t.runPending(dt) |
| timelog("start", dt.name) |
| defer timelog("end", dt.name) |
| moved := goroot + "-moved" |
| if err := os.Rename(goroot, moved); err != nil { |
| if goos == "windows" { |
| // Fails on Windows (with "Access is denied") if a process |
| // or binary is in this directory. For instance, using all.bat |
| // when run from c:\workdir\go\src fails here |
| // if GO_BUILDER_NAME is set. Our builders invoke tests |
| // a different way which happens to work when sharding |
| // tests, but we should be tolerant of the non-sharded |
| // all.bat case. |
| log.Printf("skipping test on Windows") |
| return nil |
| } |
| return err |
| } |
| |
| // Run `go test fmt` in the moved GOROOT, without explicitly setting |
| // GOROOT in the environment. The 'go' command should find itself. |
| cmd := (&goTest{ |
| goroot: moved, |
| pkg: "fmt", |
| }).command(t) |
| unsetEnv(cmd, "GOROOT") |
| err := cmd.Run() |
| |
| if rerr := os.Rename(moved, goroot); rerr != nil { |
| fatalf("failed to restore GOROOT: %v", rerr) |
| } |
| return err |
| }, |
| }) |
| } |
| |
| // Test that internal linking of standard packages does not |
| // require libgcc. This ensures that we can install a Go |
| // release on a system that does not have a C compiler |
| // installed and still build Go programs (that don't use cgo). |
| for _, pkg := range cgoPackages { |
| if !t.internalLink() { |
| break |
| } |
| |
| // ARM libgcc may be Thumb, which internal linking does not support. |
| if goarch == "arm" { |
| break |
| } |
| |
| // What matters is that the tests build and start up. |
| // Skip expensive tests, especially x509 TestSystemRoots. |
| run := "^Test[^CS]" |
| if pkg == "net" { |
| run = "TestTCPStress" |
| } |
| t.registerTest("nolibgcc:"+pkg, "Testing without libgcc.", |
| &goTest{ |
| ldflags: "-linkmode=internal -libgcc=none", |
| runTests: run, |
| pkg: pkg, |
| }) |
| } |
| |
| // Stub out following test on alpine until 54354 resolved. |
| builderName := os.Getenv("GO_BUILDER_NAME") |
| disablePIE := strings.HasSuffix(builderName, "-alpine") |
| |
| // Test internal linking of PIE binaries where it is supported. |
| if t.internalLinkPIE() && !disablePIE { |
| t.registerTest("pie_internal", "internal linking of -buildmode=pie", |
| &goTest{ |
| timeout: 60 * time.Second, |
| buildmode: "pie", |
| ldflags: "-linkmode=internal", |
| env: []string{"CGO_ENABLED=0"}, |
| pkg: "reflect", |
| }) |
| // Also test a cgo package. |
| if t.cgoEnabled && t.internalLink() && !disablePIE { |
| t.registerTest("pie_internal_cgo", "internal linking of -buildmode=pie", |
| &goTest{ |
| timeout: 60 * time.Second, |
| buildmode: "pie", |
| ldflags: "-linkmode=internal", |
| pkg: "os/user", |
| }) |
| } |
| } |
| |
| // sync tests |
| if goos != "js" { // js doesn't support -cpu=10 |
| t.registerTest("sync_cpu", "sync -cpu=10", |
| &goTest{ |
| timeout: 120 * time.Second, |
| cpu: "10", |
| pkg: "sync", |
| }) |
| } |
| |
| if t.raceDetectorSupported() { |
| t.registerRaceTests() |
| } |
| |
| if t.cgoEnabled && !t.iOS() { |
| // Disabled on iOS. golang.org/issue/15919 |
| t.registerTest("cgo_stdio", "", &goTest{dir: "../misc/cgo/stdio", timeout: 5 * time.Minute}, rtHostTest{}) |
| t.registerTest("cgo_life", "", &goTest{dir: "../misc/cgo/life", timeout: 5 * time.Minute}, rtHostTest{}) |
| if goos != "android" { |
| t.registerTest("cgo_fortran", "", &goTest{dir: "../misc/cgo/fortran", timeout: 5 * time.Minute}, rtHostTest{}) |
| } |
| if t.hasSwig() && goos != "android" { |
| t.registerTest("swig_stdio", "", &goTest{dir: "../misc/swig/stdio"}) |
| if t.hasCxx() { |
| t.registerTest("swig_callback", "", &goTest{dir: "../misc/swig/callback"}) |
| const cflags = "-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option" |
| t.registerTest("swig_callback_lto", "", |
| &goTest{ |
| dir: "../misc/swig/callback", |
| env: []string{ |
| "CGO_CFLAGS=" + cflags, |
| "CGO_CXXFLAGS=" + cflags, |
| "CGO_LDFLAGS=" + cflags, |
| }, |
| }) |
| } |
| } |
| } |
| if t.cgoEnabled { |
| t.registerCgoTests() |
| } |
| |
| // Don't run these tests with $GO_GCFLAGS because most of them |
| // assume that they can run "go install" with no -gcflags and not |
| // recompile the entire standard library. If make.bash ran with |
| // special -gcflags, that's not true. |
| if t.cgoEnabled && gogcflags == "" { |
| t.registerTest("testgodefs", "", &goTest{dir: "../misc/cgo/testgodefs", timeout: 5 * time.Minute}, rtHostTest{}) |
| |
| t.registerTest("testso", "", &goTest{dir: "../misc/cgo/testso", timeout: 600 * time.Second}) |
| t.registerTest("testsovar", "", &goTest{dir: "../misc/cgo/testsovar", timeout: 600 * time.Second}) |
| if t.supportedBuildmode("c-archive") { |
| t.registerTest("testcarchive", "", &goTest{dir: "../misc/cgo/testcarchive", timeout: 5 * time.Minute}, rtHostTest{}) |
| } |
| if t.supportedBuildmode("c-shared") { |
| t.registerTest("testcshared", "", &goTest{dir: "../misc/cgo/testcshared", timeout: 5 * time.Minute}, rtHostTest{}) |
| } |
| if t.supportedBuildmode("shared") { |
| t.registerTest("testshared", "", &goTest{dir: "../misc/cgo/testshared", timeout: 600 * time.Second}) |
| } |
| if t.supportedBuildmode("plugin") { |
| t.registerTest("testplugin", "", &goTest{dir: "../misc/cgo/testplugin", timeout: 600 * time.Second}) |
| } |
| if goos == "linux" || (goos == "freebsd" && goarch == "amd64") { |
| // because Pdeathsig of syscall.SysProcAttr struct used in misc/cgo/testsanitizers is only |
| // supported on Linux and FreeBSD. |
| t.registerTest("testsanitizers", "", &goTest{dir: "../misc/cgo/testsanitizers", timeout: 5 * time.Minute}, rtHostTest{}) |
| } |
| if t.hasBash() && goos != "android" && !t.iOS() && gohostos != "windows" { |
| t.registerTest("cgo_errors", "", &goTest{dir: "../misc/cgo/errors", timeout: 5 * time.Minute}, rtHostTest{}) |
| } |
| } |
| |
| if goos != "android" && !t.iOS() { |
| // There are no tests in this directory, only benchmarks. |
| // Check that the test binary builds. |
| t.registerTest("bench_go1", "", &goTest{dir: "../test/bench/go1"}) |
| } |
| if goos != "android" && !t.iOS() { |
| // Only start multiple test dir shards on builders, |
| // where they get distributed to multiple machines. |
| // See issues 20141 and 31834. |
| nShards := 1 |
| if os.Getenv("GO_BUILDER_NAME") != "" { |
| nShards = 10 |
| } |
| if n, err := strconv.Atoi(os.Getenv("GO_TEST_SHARDS")); err == nil { |
| nShards = n |
| } |
| for shard := 0; shard < nShards; shard++ { |
| shard := shard |
| t.tests = append(t.tests, distTest{ |
| name: fmt.Sprintf("test:%d_%d", shard, nShards), |
| heading: "../test", |
| fn: func(dt *distTest) error { return t.testDirTest(dt, shard, nShards) }, |
| }) |
| } |
| } |
| // Only run the API check on fast development platforms. |
| // Every platform checks the API on every GOOS/GOARCH/CGO_ENABLED combination anyway, |
| // so we really only need to run this check once anywhere to get adequate coverage. |
| // To help developers avoid trybot-only failures, we try to run on typical developer machines |
| // which is darwin,linux,windows/amd64 and darwin/arm64. |
| if goos == "darwin" || ((goos == "linux" || goos == "windows") && goarch == "amd64") { |
| t.registerTest("api", "", &goTest{dir: "cmd/api", timeout: 5 * time.Minute, testFlags: []string{"-check"}}) |
| } |
| |
| // Ensure that the toolchain can bootstrap itself. |
| // This test adds another ~45s to all.bash if run sequentially, so run it only on the builders. |
| if os.Getenv("GO_BUILDER_NAME") != "" && goos != "android" && !t.iOS() { |
| t.registerTest("reboot", "", &goTest{dir: "../misc/reboot", timeout: 5 * time.Minute}, rtHostTest{}) |
| } |
| } |
| |
| // isRegisteredTestName reports whether a test named testName has already |
| // been registered. |
| func (t *tester) isRegisteredTestName(testName string) bool { |
| for _, tt := range t.tests { |
| if tt.name == testName { |
| return true |
| } |
| } |
| return false |
| } |
| |
| type registerTestOpt interface { |
| isRegisterTestOpt() |
| } |
| |
| // rtSequential is a registerTest option that causes the registered test to run |
| // sequentially. |
| type rtSequential struct{} |
| |
| func (rtSequential) isRegisterTestOpt() {} |
| |
| // rtPreFunc is a registerTest option that runs a pre function before running |
| // the test. |
| type rtPreFunc struct { |
| pre func(*distTest) bool // Return false to skip the test |
| } |
| |
| func (rtPreFunc) isRegisterTestOpt() {} |
| |
| // rtHostTest is a registerTest option that indicates this is a host test that |
| // should be run using goTest.runHostTest. It implies rtSequential. |
| type rtHostTest struct{} |
| |
| func (rtHostTest) isRegisterTestOpt() {} |
| |
| // registerTest registers a test that runs the given goTest. |
| // |
| // If heading is "", it uses test.dir as the heading. |
| func (t *tester) registerTest(name, heading string, test *goTest, opts ...registerTestOpt) { |
| seq := false |
| hostTest := false |
| var preFunc func(*distTest) bool |
| for _, opt := range opts { |
| switch opt := opt.(type) { |
| case rtSequential: |
| seq = true |
| case rtPreFunc: |
| preFunc = opt.pre |
| case rtHostTest: |
| seq, hostTest = true, true |
| } |
| } |
| if t.isRegisteredTestName(name) { |
| panic("duplicate registered test name " + name) |
| } |
| if heading == "" { |
| heading = test.dir |
| } |
| t.tests = append(t.tests, distTest{ |
| name: name, |
| heading: heading, |
| fn: func(dt *distTest) error { |
| if preFunc != nil && !preFunc(dt) { |
| return nil |
| } |
| if seq { |
| t.runPending(dt) |
| if hostTest { |
| return test.runHostTest(t) |
| } |
| return test.run(t) |
| } |
| w := &work{ |
| dt: dt, |
| cmd: test.bgCommand(t), |
| } |
| t.worklist = append(t.worklist, w) |
| return nil |
| }, |
| }) |
| } |
| |
| // bgDirCmd constructs a Cmd intended to be run in the background as |
| // part of the worklist. The worklist runner will buffer its output |
| // and replay it sequentially. The command will be run in dir. |
| func (t *tester) bgDirCmd(dir, bin string, args ...string) *exec.Cmd { |
| cmd := exec.Command(bin, args...) |
| if filepath.IsAbs(dir) { |
| setDir(cmd, dir) |
| } else { |
| setDir(cmd, filepath.Join(goroot, dir)) |
| } |
| return cmd |
| } |
| |
| // dirCmd constructs a Cmd intended to be run in the foreground. |
| // The command will be run in dir, and Stdout and Stderr will go to os.Stdout |
| // and os.Stderr. |
| func (t *tester) dirCmd(dir string, cmdline ...interface{}) *exec.Cmd { |
| bin, args := flattenCmdline(cmdline) |
| cmd := t.bgDirCmd(dir, bin, args...) |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| if vflag > 1 { |
| errprintf("%s\n", strings.Join(cmd.Args, " ")) |
| } |
| return cmd |
| } |
| |
| // flattenCmdline flattens a mixture of string and []string as single list |
| // and then interprets it as a command line: first element is binary, then args. |
| func flattenCmdline(cmdline []interface{}) (bin string, args []string) { |
| var list []string |
| for _, x := range cmdline { |
| switch x := x.(type) { |
| case string: |
| list = append(list, x) |
| case []string: |
| list = append(list, x...) |
| default: |
| panic("invalid addCmd argument type: " + reflect.TypeOf(x).String()) |
| } |
| } |
| |
| bin = list[0] |
| if !filepath.IsAbs(bin) { |
| panic("command is not absolute: " + bin) |
| } |
| return bin, list[1:] |
| } |
| |
| // addCmd adds a command to the worklist. Commands can be run in |
| // parallel, but their output will be buffered and replayed in the |
| // order they were added to worklist. |
| func (t *tester) addCmd(dt *distTest, dir string, cmdline ...interface{}) *exec.Cmd { |
| bin, args := flattenCmdline(cmdline) |
| w := &work{ |
| dt: dt, |
| cmd: t.bgDirCmd(dir, bin, args...), |
| } |
| t.worklist = append(t.worklist, w) |
| return w.cmd |
| } |
| |
| func (t *tester) iOS() bool { |
| return goos == "ios" |
| } |
| |
| func (t *tester) out(v string) { |
| if t.banner == "" { |
| return |
| } |
| fmt.Println("\n" + t.banner + v) |
| } |
| |
| // extLink reports whether the current goos/goarch supports |
| // external linking. This should match the test in determineLinkMode |
| // in cmd/link/internal/ld/config.go. |
| func (t *tester) extLink() bool { |
| if goarch == "ppc64" && goos != "aix" { |
| return false |
| } |
| return true |
| } |
| |
| func (t *tester) internalLink() bool { |
| if gohostos == "dragonfly" { |
| // linkmode=internal fails on dragonfly since errno is a TLS relocation. |
| return false |
| } |
| if goos == "android" { |
| return false |
| } |
| if goos == "ios" { |
| return false |
| } |
| if goos == "windows" && goarch == "arm64" { |
| return false |
| } |
| // Internally linking cgo is incomplete on some architectures. |
| // https://golang.org/issue/10373 |
| // https://golang.org/issue/14449 |
| if goarch == "loong64" || goarch == "mips64" || goarch == "mips64le" || goarch == "mips" || goarch == "mipsle" || goarch == "riscv64" { |
| return false |
| } |
| if goos == "aix" { |
| // linkmode=internal isn't supported. |
| return false |
| } |
| return true |
| } |
| |
| func (t *tester) internalLinkPIE() bool { |
| switch goos + "-" + goarch { |
| case "darwin-amd64", "darwin-arm64", |
| "linux-amd64", "linux-arm64", "linux-ppc64le", |
| "android-arm64", |
| "windows-amd64", "windows-386", "windows-arm": |
| return true |
| } |
| return false |
| } |
| |
| // supportedBuildMode reports whether the given build mode is supported. |
| func (t *tester) supportedBuildmode(mode string) bool { |
| pair := goos + "-" + goarch |
| switch mode { |
| case "c-archive": |
| if !t.extLink() { |
| return false |
| } |
| switch goos { |
| case "aix", "darwin", "ios", "windows": |
| return true |
| case "linux": |
| switch goarch { |
| case "386", "amd64", "arm", "armbe", "arm64", "arm64be", "ppc64", "ppc64le", "riscv64", "s390x": |
| return true |
| default: |
| // Other targets do not support -shared, |
| // per ParseFlags in |
| // cmd/compile/internal/base/flag.go. |
| // For c-archive the Go tool passes -shared, |
| // so that the result is suitable for inclusion |
| // in a PIE or shared library. |
| return false |
| } |
| case "freebsd": |
| return goarch == "amd64" |
| } |
| return false |
| case "c-shared": |
| switch pair { |
| case "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-ppc64le", "linux-riscv64", "linux-s390x", |
| "darwin-amd64", "darwin-arm64", |
| "freebsd-amd64", |
| "android-arm", "android-arm64", "android-386", "android-amd64", |
| "windows-amd64", "windows-386", "windows-arm64": |
| return true |
| } |
| return false |
| case "shared": |
| switch pair { |
| case "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-ppc64le", "linux-s390x": |
| return true |
| } |
| return false |
| case "plugin": |
| switch pair { |
| case "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-s390x", "linux-ppc64le": |
| return true |
| case "android-386", "android-amd64", "android-arm", "android-arm64": |
| return true |
| case "darwin-amd64", "darwin-arm64": |
| return true |
| case "freebsd-amd64": |
| return true |
| } |
| return false |
| case "pie": |
| switch pair { |
| case "aix-ppc64", |
| "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-ppc64le", "linux-riscv64", "linux-s390x", |
| "android-amd64", "android-arm", "android-arm64", "android-386": |
| return true |
| case "darwin-amd64", "darwin-arm64", "ios-amd64", "ios-arm64": |
| return true |
| case "windows-amd64", "windows-386", "windows-arm", "windows-arm64": |
| return true |
| case "freebsd-amd64": |
| return true |
| } |
| return false |
| |
| default: |
| fatalf("internal error: unknown buildmode %s", mode) |
| return false |
| } |
| } |
| |
| func (t *tester) registerCgoTests() { |
| cgoTest := func(name string, subdir, linkmode, buildmode string, opts ...registerTestOpt) *goTest { |
| gt := &goTest{ |
| dir: "../misc/cgo/" + subdir, |
| buildmode: buildmode, |
| ldflags: "-linkmode=" + linkmode, |
| } |
| |
| if linkmode == "internal" { |
| gt.tags = append(gt.tags, "internal") |
| if buildmode == "pie" { |
| gt.tags = append(gt.tags, "internal_pie") |
| } |
| } |
| if buildmode == "static" { |
| // This isn't actually a Go buildmode, just a convenient way to tell |
| // cgoTest we want static linking. |
| gt.buildmode = "" |
| if linkmode == "external" { |
| gt.ldflags += ` -extldflags "-static -pthread"` |
| } else if linkmode == "auto" { |
| gt.env = append(gt.env, "CGO_LDFLAGS=-static -pthread") |
| } else { |
| panic("unknown linkmode with static build: " + linkmode) |
| } |
| gt.tags = append(gt.tags, "static") |
| } |
| |
| t.registerTest("cgo:"+name, "../misc/cgo/test", gt, opts...) |
| return gt |
| } |
| |
| cgoTest("test-auto", "test", "auto", "") |
| |
| // Stub out various buildmode=pie tests on alpine until 54354 resolved. |
| builderName := os.Getenv("GO_BUILDER_NAME") |
| disablePIE := strings.HasSuffix(builderName, "-alpine") |
| |
| if t.internalLink() { |
| cgoTest("test-internal", "test", "internal", "") |
| } |
| |
| os := gohostos |
| p := gohostos + "/" + goarch |
| switch { |
| case os == "darwin", os == "windows": |
| if !t.extLink() { |
| break |
| } |
| // test linkmode=external, but __thread not supported, so skip testtls. |
| cgoTest("test-external", "test", "external", "") |
| |
| gt := cgoTest("test-external-s", "test", "external", "") |
| gt.ldflags += " -s" |
| |
| if t.supportedBuildmode("pie") && !disablePIE { |
| cgoTest("test-auto-pie", "test", "auto", "pie") |
| if t.internalLink() && t.internalLinkPIE() { |
| cgoTest("test-internal-pie", "test", "internal", "pie") |
| } |
| } |
| |
| case os == "aix", os == "android", os == "dragonfly", os == "freebsd", os == "linux", os == "netbsd", os == "openbsd": |
| gt := cgoTest("test-external-g0", "test", "external", "") |
| gt.env = append(gt.env, "CGO_CFLAGS=-g0 -fdiagnostics-color") |
| |
| cgoTest("testtls-auto", "testtls", "auto", "") |
| cgoTest("testtls-external", "testtls", "external", "") |
| switch { |
| case os == "aix": |
| // no static linking |
| case p == "freebsd/arm": |
| // -fPIC compiled tls code will use __tls_get_addr instead |
| // of __aeabi_read_tp, however, on FreeBSD/ARM, __tls_get_addr |
| // is implemented in rtld-elf, so -fPIC isn't compatible with |
| // static linking on FreeBSD/ARM with clang. (cgo depends on |
| // -fPIC fundamentally.) |
| default: |
| // Check for static linking support |
| var staticCheck rtPreFunc |
| ccName := compilerEnvLookup("CC", defaultcc, goos, goarch) |
| cc, err := exec.LookPath(ccName) |
| if err != nil { |
| staticCheck.pre = func(*distTest) bool { |
| fmt.Printf("$CC (%q) not found, skip cgo static linking test.\n", ccName) |
| return false |
| } |
| } else { |
| cmd := t.dirCmd("misc/cgo/test", cc, "-xc", "-o", "/dev/null", "-static", "-") |
| cmd.Stdin = strings.NewReader("int main() {}") |
| cmd.Stdout, cmd.Stderr = nil, nil // Discard output |
| if err := cmd.Run(); err != nil { |
| // Skip these tests |
| staticCheck.pre = func(*distTest) bool { |
| fmt.Println("No support for static linking found (lacks libc.a?), skip cgo static linking test.") |
| return false |
| } |
| } |
| } |
| |
| // Static linking tests |
| if goos != "android" && p != "netbsd/arm" { |
| // TODO(#56629): Why does this fail on netbsd-arm? |
| cgoTest("testtls-static", "testtls", "external", "static", staticCheck) |
| } |
| cgoTest("nocgo-auto", "nocgo", "auto", "", staticCheck) |
| cgoTest("nocgo-external", "nocgo", "external", "", staticCheck) |
| if goos != "android" { |
| cgoTest("nocgo-static", "nocgo", "external", "static", staticCheck) |
| cgoTest("test-static", "test", "external", "static", staticCheck) |
| // -static in CGO_LDFLAGS triggers a different code path |
| // than -static in -extldflags, so test both. |
| // See issue #16651. |
| if goarch != "loong64" { |
| // TODO(#56623): Why does this fail on loong64? |
| cgoTest("test-static-env", "test", "auto", "static", staticCheck) |
| } |
| } |
| |
| // PIE linking tests |
| if t.supportedBuildmode("pie") && !disablePIE { |
| cgoTest("test-pie", "test", "auto", "pie") |
| if t.internalLink() && t.internalLinkPIE() { |
| cgoTest("test-pie-internal", "test", "internal", "pie") |
| } |
| cgoTest("testtls-pie", "testtls", "auto", "pie") |
| cgoTest("nocgo-pie", "nocgo", "auto", "pie") |
| } |
| } |
| } |
| } |
| |
| // run pending test commands, in parallel, emitting headers as appropriate. |
| // When finished, emit header for nextTest, which is going to run after the |
| // pending commands are done (and runPending returns). |
| // A test should call runPending if it wants to make sure that it is not |
| // running in parallel with earlier tests, or if it has some other reason |
| // for needing the earlier tests to be done. |
| func (t *tester) runPending(nextTest *distTest) { |
| worklist := t.worklist |
| t.worklist = nil |
| for _, w := range worklist { |
| w.start = make(chan bool) |
| w.end = make(chan bool) |
| go func(w *work) { |
| if !<-w.start { |
| timelog("skip", w.dt.name) |
| w.out = []byte(fmt.Sprintf("skipped due to earlier error\n")) |
| } else { |
| timelog("start", w.dt.name) |
| w.out, w.err = w.cmd.CombinedOutput() |
| if w.err != nil { |
| if isUnsupportedVMASize(w) { |
| timelog("skip", w.dt.name) |
| w.out = []byte(fmt.Sprintf("skipped due to unsupported VMA\n")) |
| w.err = nil |
| } |
| } |
| } |
| timelog("end", w.dt.name) |
| w.end <- true |
| }(w) |
| } |
| |
| started := 0 |
| ended := 0 |
| var last *distTest |
| for ended < len(worklist) { |
| for started < len(worklist) && started-ended < maxbg { |
| w := worklist[started] |
| started++ |
| w.start <- !t.failed || t.keepGoing |
| } |
| w := worklist[ended] |
| dt := w.dt |
| if dt.heading != "" && t.lastHeading != dt.heading { |
| t.lastHeading = dt.heading |
| t.out(dt.heading) |
| } |
| if dt != last { |
| // Assumes all the entries for a single dt are in one worklist. |
| last = w.dt |
| if vflag > 0 { |
| fmt.Printf("# go tool dist test -run=^%s$\n", dt.name) |
| } |
| } |
| if vflag > 1 { |
| errprintf("%s\n", strings.Join(w.cmd.Args, " ")) |
| } |
| ended++ |
| <-w.end |
| os.Stdout.Write(w.out) |
| if w.err != nil { |
| log.Printf("Failed: %v", w.err) |
| t.failed = true |
| } |
| } |
| if t.failed && !t.keepGoing { |
| fatalf("FAILED") |
| } |
| |
| if dt := nextTest; dt != nil { |
| if dt.heading != "" && t.lastHeading != dt.heading { |
| t.lastHeading = dt.heading |
| t.out(dt.heading) |
| } |
| if vflag > 0 { |
| fmt.Printf("# go tool dist test -run=^%s$\n", dt.name) |
| } |
| } |
| } |
| |
| func (t *tester) hasBash() bool { |
| switch gohostos { |
| case "windows", "plan9": |
| return false |
| } |
| return true |
| } |
| |
| func (t *tester) hasCxx() bool { |
| cxx, _ := exec.LookPath(compilerEnvLookup("CXX", defaultcxx, goos, goarch)) |
| return cxx != "" |
| } |
| |
| func (t *tester) hasSwig() bool { |
| swig, err := exec.LookPath("swig") |
| if err != nil { |
| return false |
| } |
| |
| // Check that swig was installed with Go support by checking |
| // that a go directory exists inside the swiglib directory. |
| // See https://golang.org/issue/23469. |
| output, err := exec.Command(swig, "-go", "-swiglib").Output() |
| if err != nil { |
| return false |
| } |
| swigDir := strings.TrimSpace(string(output)) |
| |
| _, err = os.Stat(filepath.Join(swigDir, "go")) |
| if err != nil { |
| return false |
| } |
| |
| // Check that swig has a new enough version. |
| // See https://golang.org/issue/22858. |
| out, err := exec.Command(swig, "-version").CombinedOutput() |
| if err != nil { |
| return false |
| } |
| |
| re := regexp.MustCompile(`[vV]ersion +(\d+)([.]\d+)?([.]\d+)?`) |
| matches := re.FindSubmatch(out) |
| if matches == nil { |
| // Can't find version number; hope for the best. |
| return true |
| } |
| |
| major, err := strconv.Atoi(string(matches[1])) |
| if err != nil { |
| // Can't find version number; hope for the best. |
| return true |
| } |
| if major < 3 { |
| return false |
| } |
| if major > 3 { |
| // 4.0 or later |
| return true |
| } |
| |
| // We have SWIG version 3.x. |
| if len(matches[2]) > 0 { |
| minor, err := strconv.Atoi(string(matches[2][1:])) |
| if err != nil { |
| return true |
| } |
| if minor > 0 { |
| // 3.1 or later |
| return true |
| } |
| } |
| |
| // We have SWIG version 3.0.x. |
| if len(matches[3]) > 0 { |
| patch, err := strconv.Atoi(string(matches[3][1:])) |
| if err != nil { |
| return true |
| } |
| if patch < 6 { |
| // Before 3.0.6. |
| return false |
| } |
| } |
| |
| return true |
| } |
| |
| func (t *tester) raceDetectorSupported() bool { |
| if gohostos != goos { |
| return false |
| } |
| if !t.cgoEnabled { |
| return false |
| } |
| if !raceDetectorSupported(goos, goarch) { |
| return false |
| } |
| // The race detector doesn't work on Alpine Linux: |
| // golang.org/issue/14481 |
| if isAlpineLinux() { |
| return false |
| } |
| // NetBSD support is unfinished. |
| // golang.org/issue/26403 |
| if goos == "netbsd" { |
| return false |
| } |
| return true |
| } |
| |
| func isAlpineLinux() bool { |
| if runtime.GOOS != "linux" { |
| return false |
| } |
| fi, err := os.Lstat("/etc/alpine-release") |
| return err == nil && fi.Mode().IsRegular() |
| } |
| |
| func (t *tester) registerRaceTests() { |
| hdr := "Testing race detector" |
| t.registerTest("race:runtime/race", hdr, |
| &goTest{ |
| race: true, |
| runTests: "Output", |
| pkg: "runtime/race", |
| }) |
| t.registerTest("race", hdr, |
| &goTest{ |
| race: true, |
| runTests: "TestParse|TestEcho|TestStdinCloseRace|TestClosedPipeRace|TestTypeRace|TestFdRace|TestFdReadRace|TestFileCloseRace", |
| pkgs: []string{"flag", "net", "os", "os/exec", "encoding/gob"}, |
| }) |
| // We don't want the following line, because it |
| // slows down all.bash (by 10 seconds on my laptop). |
| // The race builder should catch any error here, but doesn't. |
| // TODO(iant): Figure out how to catch this. |
| // t.registerTest("race:cmd/go", hdr, &goTest{race: true, runTests: "TestParallelTest", pkg: "cmd/go"}) |
| if t.cgoEnabled { |
| // Building misc/cgo/test takes a long time. |
| // There are already cgo-enabled packages being tested with the race detector. |
| // We shouldn't need to redo all of misc/cgo/test too. |
| // The race buildler will take care of this. |
| // t.registerTest("race:misc/cgo/test", hdr, &goTest{dir: "../misc/cgo/test", race: true, env: []string{"GOTRACEBACK=2"}}) |
| } |
| if t.extLink() { |
| var oldWindows rtPreFunc |
| if strings.HasPrefix(os.Getenv("GO_BUILDER_NAME"), "windows-amd64-2008") { |
| oldWindows.pre = func(*distTest) bool { |
| fmt.Println("skipping -race with external linkage on older windows builder, see https://github.com/golang/go/issues/56904 for details") |
| return false |
| } |
| } |
| // Test with external linking; see issue 9133. |
| t.registerTest("race:external", hdr, |
| &goTest{ |
| race: true, |
| ldflags: "-linkmode=external", |
| runTests: "TestParse|TestEcho|TestStdinCloseRace", |
| pkgs: []string{"flag", "os/exec"}, |
| }, oldWindows) |
| } |
| } |
| |
| var runtest struct { |
| sync.Once |
| exe string |
| err error |
| } |
| |
| func (t *tester) testDirTest(dt *distTest, shard, shards int) error { |
| runtest.Do(func() { |
| f, err := os.CreateTemp("", "runtest-*.exe") // named exe for Windows, but harmless elsewhere |
| if err != nil { |
| runtest.err = err |
| return |
| } |
| f.Close() |
| |
| runtest.exe = f.Name() |
| xatexit(func() { |
| os.Remove(runtest.exe) |
| }) |
| |
| cmd := t.dirCmd("test", gorootBinGo, "build", "-o", runtest.exe, "run.go") |
| setEnv(cmd, "GOOS", gohostos) |
| setEnv(cmd, "GOARCH", gohostarch) |
| runtest.err = cmd.Run() |
| }) |
| if runtest.err != nil { |
| return runtest.err |
| } |
| if t.compileOnly { |
| return nil |
| } |
| t.addCmd(dt, "test", runtest.exe, |
| fmt.Sprintf("--shard=%d", shard), |
| fmt.Sprintf("--shards=%d", shards), |
| ) |
| return nil |
| } |
| |
| // cgoPackages is the standard packages that use cgo. |
| var cgoPackages = []string{ |
| "net", |
| "os/user", |
| } |
| |
| var funcBenchmark = []byte("\nfunc Benchmark") |
| |
| // packageHasBenchmarks reports whether pkg has benchmarks. |
| // On any error, it conservatively returns true. |
| // |
| // This exists just to eliminate work on the builders, since compiling |
| // a test in race mode just to discover it has no benchmarks costs a |
| // second or two per package, and this function returns false for |
| // about 100 packages. |
| func (t *tester) packageHasBenchmarks(pkg string) bool { |
| pkgDir := filepath.Join(goroot, "src", pkg) |
| d, err := os.Open(pkgDir) |
| if err != nil { |
| return true // conservatively |
| } |
| defer d.Close() |
| names, err := d.Readdirnames(-1) |
| if err != nil { |
| return true // conservatively |
| } |
| for _, name := range names { |
| if !strings.HasSuffix(name, "_test.go") { |
| continue |
| } |
| slurp, err := os.ReadFile(filepath.Join(pkgDir, name)) |
| if err != nil { |
| return true // conservatively |
| } |
| if bytes.Contains(slurp, funcBenchmark) { |
| return true |
| } |
| } |
| return false |
| } |
| |
| // makeGOROOTUnwritable makes all $GOROOT files & directories non-writable to |
| // check that no tests accidentally write to $GOROOT. |
| func (t *tester) makeGOROOTUnwritable() (undo func()) { |
| dir := os.Getenv("GOROOT") |
| if dir == "" { |
| panic("GOROOT not set") |
| } |
| |
| type pathMode struct { |
| path string |
| mode os.FileMode |
| } |
| var dirs []pathMode // in lexical order |
| |
| undo = func() { |
| for i := range dirs { |
| os.Chmod(dirs[i].path, dirs[i].mode) // best effort |
| } |
| } |
| |
| filepath.WalkDir(dir, func(path string, d fs.DirEntry, err error) error { |
| if suffix := strings.TrimPrefix(path, dir+string(filepath.Separator)); suffix != "" { |
| if suffix == ".git" { |
| // Leave Git metadata in whatever state it was in. It may contain a lot |
| // of files, and it is highly unlikely that a test will try to modify |
| // anything within that directory. |
| return filepath.SkipDir |
| } |
| } |
| if err != nil { |
| return nil |
| } |
| |
| info, err := d.Info() |
| if err != nil { |
| return nil |
| } |
| |
| mode := info.Mode() |
| if mode&0222 != 0 && (mode.IsDir() || mode.IsRegular()) { |
| dirs = append(dirs, pathMode{path, mode}) |
| } |
| return nil |
| }) |
| |
| // Run over list backward to chmod children before parents. |
| for i := len(dirs) - 1; i >= 0; i-- { |
| err := os.Chmod(dirs[i].path, dirs[i].mode&^0222) |
| if err != nil { |
| dirs = dirs[i:] // Only undo what we did so far. |
| undo() |
| fatalf("failed to make GOROOT read-only: %v", err) |
| } |
| } |
| |
| return undo |
| } |
| |
| // raceDetectorSupported is a copy of the function |
| // internal/platform.RaceDetectorSupported, which can't be used here |
| // because cmd/dist can not import internal packages during bootstrap. |
| // The race detector only supports 48-bit VMA on arm64. But we don't have |
| // a good solution to check VMA size(See https://golang.org/issue/29948) |
| // raceDetectorSupported will always return true for arm64. But race |
| // detector tests may abort on non 48-bit VMA configuration, the tests |
| // will be marked as "skipped" in this case. |
| func raceDetectorSupported(goos, goarch string) bool { |
| switch goos { |
| case "linux": |
| return goarch == "amd64" || goarch == "ppc64le" || goarch == "arm64" || goarch == "s390x" |
| case "darwin": |
| return goarch == "amd64" || goarch == "arm64" |
| case "freebsd", "netbsd", "openbsd", "windows": |
| return goarch == "amd64" |
| default: |
| return false |
| } |
| } |
| |
| // isUnsupportedVMASize reports whether the failure is caused by an unsupported |
| // VMA for the race detector (for example, running the race detector on an |
| // arm64 machine configured with 39-bit VMA) |
| func isUnsupportedVMASize(w *work) bool { |
| unsupportedVMA := []byte("unsupported VMA range") |
| return w.dt.name == "race" && bytes.Contains(w.out, unsupportedVMA) |
| } |
| |
| // isEnvSet reports whether the environment variable evar is |
| // set in the environment. |
| func isEnvSet(evar string) bool { |
| evarEq := evar + "=" |
| for _, e := range os.Environ() { |
| if strings.HasPrefix(e, evarEq) { |
| return true |
| } |
| } |
| return false |
| } |