| // 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/ioutil" |
| "log" |
| "os" |
| "os/exec" |
| "path" |
| "path/filepath" |
| "reflect" |
| "regexp" |
| "runtime" |
| "strconv" |
| "strings" |
| "sync" |
| "time" |
| ) |
| |
| func cmdtest() { |
| gogcflags = os.Getenv("GO_GCFLAGS") |
| |
| 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", os.Getenv("GOTESTONLY"), |
| "run only those tests matching the regular expression; empty means to run all. "+ |
| "Special exception: if the string begins with '!', the match is inverted.") |
| xflagparse(-1) // any number of args |
| if noRebuild { |
| t.rebuild = false |
| } |
| |
| t.run() |
| } |
| |
| // tester executes cmdtest. |
| type tester struct { |
| race 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 |
| |
| cgoEnabled bool |
| partial bool |
| haveTime bool // the 'time' binary is available |
| |
| 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") |
| |
| var exeSuffix string |
| if goos == "windows" { |
| exeSuffix = ".exe" |
| } |
| if _, err := os.Stat(filepath.Join(gobin, "go"+exeSuffix)); err == nil { |
| os.Setenv("PATH", fmt.Sprintf("%s%c%s", gobin, os.PathListSeparator, os.Getenv("PATH"))) |
| } |
| |
| cmd := exec.Command("go", "env", "CGO_ENABLED") |
| cmd.Stderr = new(bytes.Buffer) |
| slurp, err := cmd.Output() |
| if err != nil { |
| fatalf("Error running go env CGO_ENABLED: %v\n%s", err, cmd.Stderr) |
| } |
| t.cgoEnabled, _ = strconv.ParseBool(strings.TrimSpace(string(slurp))) |
| if flag.NArg() > 0 && t.runRxStr != "" { |
| fatalf("the -run regular expression flag is mutually exclusive with test name arguments") |
| } |
| |
| t.runNames = flag.Args() |
| |
| if t.hasBash() { |
| if _, err := exec.LookPath("time"); err == nil { |
| t.haveTime = true |
| } |
| } |
| |
| // 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("go", append([]string{"-a", "-i"}, toolchain...)...) |
| } |
| |
| // Complete rebuild bootstrap, even with -no-rebuild. |
| // If everything is up-to-date, this is a no-op. |
| // If everything is not up-to-date, the first checkNotStale |
| // during the test process will kill the tests, so we might |
| // as well install the world. |
| // Now that for example "go install cmd/compile" does not |
| // also install runtime (you need "go install -i cmd/compile" |
| // for that), it's easy for previous workflows like |
| // "rebuild the compiler and then run run.bash" |
| // to break if we don't automatically refresh things here. |
| // Rebuilding is a shortened bootstrap. |
| // See cmdbootstrap for a description of the overall process. |
| // |
| // But don't do this if we're running in the Go build system, |
| // where cmd/dist is invoked many times. This just slows that |
| // down (Issue 24300). |
| if !t.listMode && os.Getenv("GO_BUILDER_NAME") == "" { |
| goInstall("go", append([]string{"-i"}, toolchain...)...) |
| goInstall("go", append([]string{"-i"}, toolchain...)...) |
| goInstall("go", "std", "cmd") |
| checkNotStale("go", "std", "cmd") |
| } |
| |
| t.timeoutScale = 1 |
| switch goarch { |
| case "arm": |
| t.timeoutScale = 2 |
| case "mips", "mipsle", "mips64", "mips64le": |
| t.timeoutScale = 4 |
| } |
| 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()) |
| } |
| } |
| |
| 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 incomplete[goos+"/"+goarch] { |
| // The test succeeded, but consider it as failed so we don't |
| // forget to remove the port from the incomplete map once the |
| // port is complete. |
| fmt.Println("\nFAILED (incomplete port)") |
| 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 |
| } |
| |
| // short returns a -short flag value to use with 'go test' |
| // or a test binary for tests intended to run in short mode. |
| // It returns "true", unless the environment variable |
| // GO_TEST_SHORT is set to a non-empty, false-ish string. |
| // |
| // This environment variable is meant to be an internal |
| // detail between the Go build system and cmd/dist for |
| // the purpose of longtest builders, and is not intended |
| // for use by users. See golang.org/issue/12508. |
| func short() string { |
| 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) |
| } |
| if !short { |
| return "false" |
| } |
| } |
| return "true" |
| } |
| |
| // goTest returns the beginning of the go test command line. |
| // Callers should use goTest and then pass flags overriding these |
| // defaults as later arguments in the command line. |
| func (t *tester) goTest() []string { |
| return []string{ |
| "go", "test", "-short=" + short(), "-count=1", t.tags(), t.runFlag(""), |
| } |
| } |
| |
| func (t *tester) tags() string { |
| if t.iOS() { |
| return "-tags=lldb" |
| } |
| return "-tags=" |
| } |
| |
| // timeoutDuration converts the provided number of seconds into a |
| // time.Duration, scaled by the t.timeoutScale factor. |
| func (t *tester) timeoutDuration(sec int) time.Duration { |
| return time.Duration(sec) * time.Second * time.Duration(t.timeoutScale) |
| } |
| |
| // timeout returns the "-timeout=" string argument to "go test" given |
| // the number of seconds of timeout. It scales it by the |
| // t.timeoutScale factor. |
| func (t *tester) timeout(sec int) string { |
| return "-timeout=" + t.timeoutDuration(sec).String() |
| } |
| |
| // 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, useG3 bool) { |
| heading := "Testing packages." |
| testPrefix := "go_test:" |
| gcflags := gogcflags |
| if useG3 { |
| heading = "Testing packages with -G=3." |
| testPrefix = "go_test_g3:" |
| gcflags += " -G=3" |
| } |
| |
| 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 |
| for _, pkg := range stdMatches { |
| if pkg == "cmd/go" { |
| timeoutSec *= 3 |
| break |
| } |
| } |
| // Special case for our slow cross-compiled |
| // qemu builders: |
| if t.shouldUsePrecompiledStdTest() { |
| return t.runPrecompiledStdTest(t.timeoutDuration(timeoutSec)) |
| } |
| args := []string{ |
| "test", |
| "-short=" + short(), |
| t.tags(), |
| t.timeout(timeoutSec), |
| "-gcflags=all=" + gcflags, |
| } |
| if t.race { |
| args = append(args, "-race") |
| } |
| if t.compileOnly { |
| args = append(args, "-run=^$") |
| } |
| args = append(args, stdMatches...) |
| cmd := exec.Command("go", args...) |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| return cmd.Run() |
| }, |
| }) |
| } |
| |
| 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 |
| args := []string{ |
| "test", |
| "-short=" + short(), |
| "-race", |
| t.timeout(1200), // longer timeout for race with benchmarks |
| "-run=^$", // nothing. only benchmarks. |
| "-benchtime=.1s", |
| "-cpu=4", |
| } |
| if !t.compileOnly { |
| args = append(args, "-bench=.*") |
| } |
| args = append(args, benchMatches...) |
| cmd := exec.Command("go", args...) |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| return cmd.Run() |
| }, |
| }) |
| } |
| |
| // stdOutErrAreTerminals is defined in test_linux.go, to report |
| // whether stdout & stderr are terminals. |
| var stdOutErrAreTerminals func() bool |
| |
| 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:"), false) |
| } |
| if strings.HasPrefix(name, "go_test_g3:") { |
| t.registerStdTest(strings.TrimPrefix(name, "go_test_g3:"), true) |
| } |
| 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("go", "list", "-f", format) |
| if t.race { |
| cmd.Args = append(cmd.Args, "-tags=race") |
| } |
| cmd.Args = append(cmd.Args, "std") |
| if t.shouldTestCmd() { |
| cmd.Args = append(cmd.Args, "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)) |
| if false { |
| // Disable -G=3 option for standard tests for now, since |
| // they are flaky on the builder. |
| for _, pkg := range pkgs { |
| t.registerStdTest(pkg, true /* -G=3 flag */) |
| } |
| } |
| for _, pkg := range pkgs { |
| t.registerStdTest(pkg, false) |
| } |
| if t.race { |
| for _, pkg := range pkgs { |
| if t.packageHasBenchmarks(pkg) { |
| t.registerRaceBenchTest(pkg) |
| } |
| } |
| } |
| } |
| |
| // Test the os/user package in the pure-Go mode too. |
| if !t.compileOnly { |
| t.tests = append(t.tests, distTest{ |
| name: "osusergo", |
| heading: "os/user with tag osusergo", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "src", t.goTest(), t.timeout(300), "-tags=osusergo", "os/user") |
| return nil |
| }, |
| }) |
| } |
| |
| // Test go/... cmd/gofmt with type parameters enabled. |
| if !t.compileOnly { |
| t.tests = append(t.tests, distTest{ |
| name: "tyepparams", |
| heading: "go/... and cmd/gofmt tests with tag typeparams", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "src", t.goTest(), t.timeout(300), "-tags=typeparams", "go/...") |
| t.addCmd(dt, "src", t.goTest(), t.timeout(300), "-tags=typeparams", "cmd/gofmt") |
| return nil |
| }, |
| }) |
| } |
| |
| if t.iOS() && !t.compileOnly { |
| t.tests = append(t.tests, distTest{ |
| name: "x509omitbundledroots", |
| heading: "crypto/x509 without bundled roots", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "src", t.goTest(), t.timeout(300), "-tags=x509omitbundledroots", "-run=OmitBundledRoots", "crypto/x509") |
| return nil |
| }, |
| }) |
| } |
| |
| // Test ios/amd64 for the iOS simulator. |
| if goos == "darwin" && goarch == "amd64" && t.cgoEnabled { |
| t.tests = append(t.tests, distTest{ |
| name: "amd64ios", |
| heading: "GOOS=ios on darwin/amd64", |
| fn: func(dt *distTest) error { |
| cmd := t.addCmd(dt, "src", t.goTest(), t.timeout(300), "-run=SystemRoots", "crypto/x509") |
| cmd.Env = append(os.Environ(), "GOOS=ios", "CGO_ENABLED=1") |
| return nil |
| }, |
| }) |
| } |
| |
| if t.race { |
| return |
| } |
| |
| // Runtime CPU tests. |
| if !t.compileOnly && goos != "js" { // js can't handle -cpu != 1 |
| testName := "runtime:cpu124" |
| t.tests = append(t.tests, distTest{ |
| name: testName, |
| heading: "GOMAXPROCS=2 runtime -cpu=1,2,4 -quick", |
| fn: func(dt *distTest) error { |
| cmd := t.addCmd(dt, "src", t.goTest(), t.timeout(300), "runtime", "-cpu=1,2,4", "-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. |
| cmd.Env = append(os.Environ(), "GOMAXPROCS=2") |
| return nil |
| }, |
| }) |
| } |
| |
| // This test needs its stdout/stderr to be terminals, so we don't run it from cmd/go's tests. |
| // See issue 18153. |
| if goos == "linux" { |
| t.tests = append(t.tests, distTest{ |
| name: "cmd_go_test_terminal", |
| heading: "cmd/go terminal test", |
| fn: func(dt *distTest) error { |
| t.runPending(dt) |
| timelog("start", dt.name) |
| defer timelog("end", dt.name) |
| if !stdOutErrAreTerminals() { |
| fmt.Println("skipping terminal test; stdout/stderr not terminals") |
| return nil |
| } |
| cmd := exec.Command("go", "test") |
| cmd.Dir = filepath.Join(os.Getenv("GOROOT"), "src/cmd/go/testdata/testterminal18153") |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| return cmd.Run() |
| }, |
| }) |
| } |
| |
| // 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. |
| cmd := exec.Command(filepath.Join(moved, "bin", "go"), "test", "fmt") |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| // Don't set GOROOT in the environment. |
| for _, e := range os.Environ() { |
| if !strings.HasPrefix(e, "GOROOT=") && !strings.HasPrefix(e, "GOCACHE=") { |
| cmd.Env = append(cmd.Env, e) |
| } |
| } |
| 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 |
| } |
| |
| pkg := pkg |
| var run string |
| if pkg == "net" { |
| run = "TestTCPStress" |
| } |
| t.tests = append(t.tests, distTest{ |
| name: "nolibgcc:" + pkg, |
| heading: "Testing without libgcc.", |
| fn: func(dt *distTest) error { |
| // What matters is that the tests build and start up. |
| // Skip expensive tests, especially x509 TestSystemRoots. |
| t.addCmd(dt, "src", t.goTest(), "-ldflags=-linkmode=internal -libgcc=none", "-run=^Test[^CS]", pkg, t.runFlag(run)) |
| return nil |
| }, |
| }) |
| } |
| |
| // Test internal linking of PIE binaries where it is supported. |
| if t.internalLinkPIE() { |
| t.tests = append(t.tests, distTest{ |
| name: "pie_internal", |
| heading: "internal linking of -buildmode=pie", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "src", t.goTest(), "reflect", "-buildmode=pie", "-ldflags=-linkmode=internal", t.timeout(60)) |
| return nil |
| }, |
| }) |
| // Also test a cgo package. |
| if t.cgoEnabled && t.internalLink() { |
| t.tests = append(t.tests, distTest{ |
| name: "pie_internal_cgo", |
| heading: "internal linking of -buildmode=pie", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "src", t.goTest(), "os/user", "-buildmode=pie", "-ldflags=-linkmode=internal", t.timeout(60)) |
| return nil |
| }, |
| }) |
| } |
| } |
| |
| // sync tests |
| if goos != "js" { // js doesn't support -cpu=10 |
| t.tests = append(t.tests, distTest{ |
| name: "sync_cpu", |
| heading: "sync -cpu=10", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "src", t.goTest(), "sync", t.timeout(120), "-cpu=10", t.runFlag("")) |
| return nil |
| }, |
| }) |
| } |
| |
| if t.raceDetectorSupported() { |
| t.tests = append(t.tests, distTest{ |
| name: "race", |
| heading: "Testing race detector", |
| fn: t.raceTest, |
| }) |
| } |
| |
| if t.cgoEnabled && !t.iOS() { |
| // Disabled on iOS. golang.org/issue/15919 |
| t.registerHostTest("cgo_stdio", "../misc/cgo/stdio", "misc/cgo/stdio", ".") |
| t.registerHostTest("cgo_life", "../misc/cgo/life", "misc/cgo/life", ".") |
| fortran := os.Getenv("FC") |
| if fortran == "" { |
| fortran, _ = exec.LookPath("gfortran") |
| } |
| if t.hasBash() && goos != "android" && fortran != "" { |
| t.tests = append(t.tests, distTest{ |
| name: "cgo_fortran", |
| heading: "../misc/cgo/fortran", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "misc/cgo/fortran", "./test.bash", fortran) |
| return nil |
| }, |
| }) |
| } |
| if t.hasSwig() && goos != "android" { |
| t.tests = append(t.tests, distTest{ |
| name: "swig_stdio", |
| heading: "../misc/swig/stdio", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "misc/swig/stdio", t.goTest()) |
| return nil |
| }, |
| }) |
| if t.hasCxx() { |
| t.tests = append(t.tests, |
| distTest{ |
| name: "swig_callback", |
| heading: "../misc/swig/callback", |
| fn: func(dt *distTest) error { |
| t.addCmd(dt, "misc/swig/callback", t.goTest()) |
| return nil |
| }, |
| }, |
| distTest{ |
| name: "swig_callback_lto", |
| heading: "../misc/swig/callback", |
| fn: func(dt *distTest) error { |
| cmd := t.addCmd(dt, "misc/swig/callback", t.goTest()) |
| cmd.Env = append(os.Environ(), |
| "CGO_CFLAGS=-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option", |
| "CGO_CXXFLAGS=-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option", |
| "CGO_LDFLAGS=-flto -Wno-lto-type-mismatch -Wno-unknown-warning-option", |
| ) |
| return nil |
| }, |
| }, |
| ) |
| } |
| } |
| } |
| if t.cgoEnabled { |
| t.tests = append(t.tests, distTest{ |
| name: "cgo_test", |
| heading: "../misc/cgo/test", |
| fn: t.cgoTest, |
| }) |
| } |
| |
| // 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.registerHostTest("testgodefs", "../misc/cgo/testgodefs", "misc/cgo/testgodefs", ".") |
| |
| t.registerTest("testso", "../misc/cgo/testso", t.goTest(), t.timeout(600), ".") |
| t.registerTest("testsovar", "../misc/cgo/testsovar", t.goTest(), t.timeout(600), ".") |
| if t.supportedBuildmode("c-archive") { |
| t.registerHostTest("testcarchive", "../misc/cgo/testcarchive", "misc/cgo/testcarchive", ".") |
| } |
| if t.supportedBuildmode("c-shared") { |
| t.registerHostTest("testcshared", "../misc/cgo/testcshared", "misc/cgo/testcshared", ".") |
| } |
| if t.supportedBuildmode("shared") { |
| t.registerTest("testshared", "../misc/cgo/testshared", t.goTest(), t.timeout(600), ".") |
| } |
| if t.supportedBuildmode("plugin") { |
| t.registerTest("testplugin", "../misc/cgo/testplugin", t.goTest(), t.timeout(600), ".") |
| } |
| if gohostos == "linux" && goarch == "amd64" { |
| t.registerTest("testasan", "../misc/cgo/testasan", "go", "run", ".") |
| } |
| if goos == "linux" && goarch != "ppc64le" { |
| // because syscall.SysProcAttr struct used in misc/cgo/testsanitizers is only built on linux. |
| // Some inconsistent failures happen on ppc64le so disable for now. |
| t.registerHostTest("testsanitizers", "../misc/cgo/testsanitizers", "misc/cgo/testsanitizers", ".") |
| } |
| if t.hasBash() && goos != "android" && !t.iOS() && gohostos != "windows" { |
| t.registerHostTest("cgo_errors", "../misc/cgo/errors", "misc/cgo/errors", ".") |
| } |
| if gohostos == "linux" && t.extLink() { |
| t.registerTest("testsigfwd", "../misc/cgo/testsigfwd", "go", "run", ".") |
| } |
| } |
| |
| if goos != "android" && !t.iOS() { |
| // There are no tests in this directory, only benchmarks. |
| // Check that the test binary builds but don't bother running it. |
| // (It has init-time work to set up for the benchmarks that is not worth doing unnecessarily.) |
| t.registerTest("bench_go1", "../test/bench/go1", t.goTest(), "-c", "-o="+os.DevNull) |
| } |
| 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. Android, iOS, and JS |
| // are always cross-compiled, and the filesystems on our only plan9 builders |
| // are too slow to complete in a reasonable timeframe. 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. |
| if goos != "android" && !t.iOS() && goos != "js" && goos != "plan9" { |
| t.tests = append(t.tests, distTest{ |
| name: "api", |
| heading: "API check", |
| fn: func(dt *distTest) error { |
| if t.compileOnly { |
| t.addCmd(dt, "src", "go", "build", "-o", os.DevNull, filepath.Join(goroot, "src/cmd/api/run.go")) |
| return nil |
| } |
| t.addCmd(dt, "src", "go", "run", filepath.Join(goroot, "src/cmd/api/run.go")) |
| return nil |
| }, |
| }) |
| } |
| |
| // 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.registerHostTest("reboot", "../misc/reboot", "misc/reboot", ".") |
| } |
| } |
| |
| // 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 |
| } |
| |
| func (t *tester) registerTest1(seq bool, name, dirBanner string, cmdline ...interface{}) { |
| bin, args := flattenCmdline(cmdline) |
| if bin == "time" && !t.haveTime { |
| bin, args = args[0], args[1:] |
| } |
| if t.isRegisteredTestName(name) { |
| panic("duplicate registered test name " + name) |
| } |
| t.tests = append(t.tests, distTest{ |
| name: name, |
| heading: dirBanner, |
| fn: func(dt *distTest) error { |
| if seq { |
| t.runPending(dt) |
| timelog("start", name) |
| defer timelog("end", name) |
| return t.dirCmd(filepath.Join(goroot, "src", dirBanner), bin, args).Run() |
| } |
| t.addCmd(dt, filepath.Join(goroot, "src", dirBanner), bin, args) |
| return nil |
| }, |
| }) |
| } |
| |
| func (t *tester) registerTest(name, dirBanner string, cmdline ...interface{}) { |
| t.registerTest1(false, name, dirBanner, cmdline...) |
| } |
| |
| func (t *tester) registerSeqTest(name, dirBanner string, cmdline ...interface{}) { |
| t.registerTest1(true, name, dirBanner, cmdline...) |
| } |
| |
| func (t *tester) bgDirCmd(dir, bin string, args ...string) *exec.Cmd { |
| cmd := exec.Command(bin, args...) |
| if filepath.IsAbs(dir) { |
| cmd.Dir = dir |
| } else { |
| cmd.Dir = filepath.Join(goroot, dir) |
| } |
| return cmd |
| } |
| |
| 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()) |
| } |
| } |
| |
| // The go command is too picky about duplicated flags. |
| // Drop all but the last of the allowed duplicated flags. |
| drop := make([]bool, len(list)) |
| have := map[string]int{} |
| for i := 1; i < len(list); i++ { |
| j := strings.Index(list[i], "=") |
| if j < 0 { |
| continue |
| } |
| flag := list[i][:j] |
| switch flag { |
| case "-run", "-tags": |
| if have[flag] != 0 { |
| drop[have[flag]] = true |
| } |
| have[flag] = i |
| } |
| } |
| out := list[:0] |
| for i, x := range list { |
| if !drop[i] { |
| out = append(out, x) |
| } |
| } |
| list = out |
| |
| return list[0], list[1:] |
| } |
| |
| 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) |
| } |
| |
| func (t *tester) extLink() bool { |
| pair := gohostos + "-" + goarch |
| switch pair { |
| case "aix-ppc64", |
| "android-arm", "android-arm64", |
| "darwin-amd64", "darwin-arm64", |
| "dragonfly-amd64", |
| "freebsd-386", "freebsd-amd64", "freebsd-arm", |
| "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-ppc64le", "linux-mips64", "linux-mips64le", "linux-mips", "linux-mipsle", "linux-riscv64", "linux-s390x", |
| "netbsd-386", "netbsd-amd64", |
| "openbsd-386", "openbsd-amd64", |
| "windows-386", "windows-amd64": |
| return true |
| } |
| return false |
| } |
| |
| func (t *tester) internalLink() bool { |
| if gohostos == "dragonfly" { |
| // linkmode=internal fails on dragonfly since errno is a TLS relocation. |
| return false |
| } |
| if gohostarch == "ppc64le" { |
| // linkmode=internal fails on ppc64le because cmd/link doesn't |
| // handle the TOC correctly (issue 15409). |
| 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 == "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", |
| "android-arm64", |
| "windows-amd64", "windows-386", "windows-arm": |
| return true |
| } |
| return false |
| } |
| |
| func (t *tester) supportedBuildmode(mode string) bool { |
| pair := goos + "-" + goarch |
| switch mode { |
| case "c-archive": |
| if !t.extLink() { |
| return false |
| } |
| switch pair { |
| case "aix-ppc64", |
| "darwin-amd64", "darwin-arm64", "ios-arm64", |
| "linux-amd64", "linux-386", "linux-ppc64le", "linux-s390x", |
| "freebsd-amd64", |
| "windows-amd64", "windows-386": |
| return true |
| } |
| return false |
| case "c-shared": |
| switch pair { |
| case "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-ppc64le", "linux-s390x", |
| "darwin-amd64", "darwin-arm64", |
| "freebsd-amd64", |
| "android-arm", "android-arm64", "android-386", |
| "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": |
| // linux-arm64 is missing because it causes the external linker |
| // to crash, see https://golang.org/issue/17138 |
| switch pair { |
| case "linux-386", "linux-amd64", "linux-arm", "linux-s390x", "linux-ppc64le": |
| 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": |
| return true |
| case "windows-amd64", "windows-386", "windows-arm": |
| return true |
| } |
| return false |
| |
| default: |
| fatalf("internal error: unknown buildmode %s", mode) |
| return false |
| } |
| } |
| |
| func (t *tester) registerHostTest(name, heading, dir, pkg string) { |
| t.tests = append(t.tests, distTest{ |
| name: name, |
| heading: heading, |
| fn: func(dt *distTest) error { |
| t.runPending(dt) |
| timelog("start", name) |
| defer timelog("end", name) |
| return t.runHostTest(dir, pkg) |
| }, |
| }) |
| } |
| |
| func (t *tester) runHostTest(dir, pkg string) error { |
| out, err := exec.Command("go", "env", "GOEXE", "GOTMPDIR").Output() |
| if err != nil { |
| return err |
| } |
| |
| parts := strings.Split(string(out), "\n") |
| if len(parts) < 2 { |
| return fmt.Errorf("'go env GOEXE GOTMPDIR' output contains <2 lines") |
| } |
| GOEXE := strings.TrimSpace(parts[0]) |
| GOTMPDIR := strings.TrimSpace(parts[1]) |
| |
| f, err := ioutil.TempFile(GOTMPDIR, "test.test-*"+GOEXE) |
| if err != nil { |
| return err |
| } |
| f.Close() |
| defer os.Remove(f.Name()) |
| |
| cmd := t.dirCmd(dir, t.goTest(), "-c", "-o", f.Name(), pkg) |
| cmd.Env = append(os.Environ(), "GOARCH="+gohostarch, "GOOS="+gohostos) |
| if err := cmd.Run(); err != nil { |
| return err |
| } |
| return t.dirCmd(dir, f.Name(), "-test.short="+short()).Run() |
| } |
| |
| func (t *tester) cgoTest(dt *distTest) error { |
| cmd := t.addCmd(dt, "misc/cgo/test", t.goTest()) |
| cmd.Env = append(os.Environ(), "GOFLAGS=-ldflags=-linkmode=auto") |
| |
| // Skip internal linking cases on linux/arm64 to support GCC-9.4 and above. |
| // See issue #39466. |
| skipInternalLink := goarch == "arm64" && goos == "linux" |
| |
| if t.internalLink() && !skipInternalLink { |
| cmd := t.addCmd(dt, "misc/cgo/test", t.goTest(), "-tags=internal") |
| cmd.Env = append(os.Environ(), "GOFLAGS=-ldflags=-linkmode=internal") |
| } |
| |
| pair := gohostos + "-" + goarch |
| switch pair { |
| case "darwin-amd64", "darwin-arm64", |
| "windows-386", "windows-amd64": |
| // test linkmode=external, but __thread not supported, so skip testtls. |
| if !t.extLink() { |
| break |
| } |
| cmd := t.addCmd(dt, "misc/cgo/test", t.goTest()) |
| cmd.Env = append(os.Environ(), "GOFLAGS=-ldflags=-linkmode=external") |
| |
| cmd = t.addCmd(dt, "misc/cgo/test", t.goTest(), "-ldflags", "-linkmode=external -s") |
| |
| if t.supportedBuildmode("pie") { |
| t.addCmd(dt, "misc/cgo/test", t.goTest(), "-buildmode=pie") |
| if t.internalLink() && t.internalLinkPIE() { |
| t.addCmd(dt, "misc/cgo/test", t.goTest(), "-buildmode=pie", "-ldflags=-linkmode=internal", "-tags=internal,internal_pie") |
| } |
| } |
| |
| case "aix-ppc64", |
| "android-arm", "android-arm64", |
| "dragonfly-amd64", |
| "freebsd-386", "freebsd-amd64", "freebsd-arm", |
| "linux-386", "linux-amd64", "linux-arm", "linux-arm64", "linux-ppc64le", "linux-riscv64", "linux-s390x", |
| "netbsd-386", "netbsd-amd64", |
| "openbsd-386", "openbsd-amd64", "openbsd-arm", "openbsd-arm64", "openbsd-mips64": |
| |
| cmd := t.addCmd(dt, "misc/cgo/test", t.goTest()) |
| cmd.Env = append(os.Environ(), "GOFLAGS=-ldflags=-linkmode=external") |
| // cgo should be able to cope with both -g arguments and colored |
| // diagnostics. |
| cmd.Env = append(cmd.Env, "CGO_CFLAGS=-g0 -fdiagnostics-color") |
| |
| t.addCmd(dt, "misc/cgo/testtls", t.goTest(), "-ldflags", "-linkmode=auto") |
| t.addCmd(dt, "misc/cgo/testtls", t.goTest(), "-ldflags", "-linkmode=external") |
| |
| switch pair { |
| case "aix-ppc64", "netbsd-386", "netbsd-amd64": |
| // no static linking |
| case "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: |
| cmd := t.dirCmd("misc/cgo/test", |
| compilerEnvLookup(defaultcc, goos, goarch), "-xc", "-o", "/dev/null", "-static", "-") |
| cmd.Stdin = strings.NewReader("int main() {}") |
| if err := cmd.Run(); err != nil { |
| fmt.Println("No support for static linking found (lacks libc.a?), skip cgo static linking test.") |
| } else { |
| if goos != "android" { |
| t.addCmd(dt, "misc/cgo/testtls", t.goTest(), "-ldflags", `-linkmode=external -extldflags "-static -pthread"`) |
| } |
| t.addCmd(dt, "misc/cgo/nocgo", t.goTest()) |
| t.addCmd(dt, "misc/cgo/nocgo", t.goTest(), "-ldflags", `-linkmode=external`) |
| if goos != "android" { |
| t.addCmd(dt, "misc/cgo/nocgo", t.goTest(), "-ldflags", `-linkmode=external -extldflags "-static -pthread"`) |
| t.addCmd(dt, "misc/cgo/test", t.goTest(), "-tags=static", "-ldflags", `-linkmode=external -extldflags "-static -pthread"`) |
| // -static in CGO_LDFLAGS triggers a different code path |
| // than -static in -extldflags, so test both. |
| // See issue #16651. |
| cmd := t.addCmd(dt, "misc/cgo/test", t.goTest(), "-tags=static") |
| cmd.Env = append(os.Environ(), "CGO_LDFLAGS=-static -pthread") |
| } |
| } |
| |
| if t.supportedBuildmode("pie") { |
| t.addCmd(dt, "misc/cgo/test", t.goTest(), "-buildmode=pie") |
| if t.internalLink() && t.internalLinkPIE() && !skipInternalLink { |
| t.addCmd(dt, "misc/cgo/test", t.goTest(), "-buildmode=pie", "-ldflags=-linkmode=internal", "-tags=internal,internal_pie") |
| } |
| t.addCmd(dt, "misc/cgo/testtls", t.goTest(), "-buildmode=pie") |
| t.addCmd(dt, "misc/cgo/nocgo", t.goTest(), "-buildmode=pie") |
| } |
| } |
| } |
| |
| return nil |
| } |
| |
| // 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) { |
| checkNotStale("go", "std") |
| 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 |
| } |
| checkNotStale("go", "std") |
| } |
| 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(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) runFlag(rx string) string { |
| if t.compileOnly { |
| return "-run=^$" |
| } |
| return "-run=" + rx |
| } |
| |
| func (t *tester) raceTest(dt *distTest) error { |
| t.addCmd(dt, "src", t.goTest(), "-race", t.runFlag("Output"), "runtime/race") |
| t.addCmd(dt, "src", t.goTest(), "-race", t.runFlag("TestParse|TestEcho|TestStdinCloseRace|TestClosedPipeRace|TestTypeRace|TestFdRace|TestFdReadRace|TestFileCloseRace"), "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.addCmd(dt, "src", t.goTest(), "-race", "-run=TestParallelTest", "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. |
| // cmd := t.addCmd(dt, "misc/cgo/test", t.goTest(), "-race") |
| // cmd.Env = append(os.Environ(), "GOTRACEBACK=2") |
| } |
| if t.extLink() { |
| // Test with external linking; see issue 9133. |
| t.addCmd(dt, "src", t.goTest(), "-race", "-ldflags=-linkmode=external", t.runFlag("TestParse|TestEcho|TestStdinCloseRace"), "flag", "os/exec") |
| } |
| return nil |
| } |
| |
| var runtest struct { |
| sync.Once |
| exe string |
| err error |
| } |
| |
| func (t *tester) testDirTest(dt *distTest, shard, shards int) error { |
| runtest.Do(func() { |
| f, err := ioutil.TempFile("", "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", "go", "build", "-o", runtest.exe, "run.go") |
| cmd.Env = append(os.Environ(), "GOOS="+gohostos, "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 := ioutil.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 |
| } |
| } |
| |
| gocache := os.Getenv("GOCACHE") |
| if gocache == "" { |
| panic("GOCACHE not set") |
| } |
| gocacheSubdir, _ := filepath.Rel(dir, gocache) |
| |
| // Note: Can't use WalkDir here, because this has to compile with Go 1.4. |
| filepath.Walk(dir, func(path string, info os.FileInfo, err error) error { |
| if suffix := strings.TrimPrefix(path, dir+string(filepath.Separator)); suffix != "" { |
| if suffix == gocacheSubdir { |
| // Leave GOCACHE writable: we may need to write test binaries into it. |
| return filepath.SkipDir |
| } |
| 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 { |
| 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 |
| } |
| |
| // shouldUsePrecompiledStdTest reports whether "dist test" should use |
| // a pre-compiled go test binary on disk rather than running "go test" |
| // and compiling it again. This is used by our slow qemu-based builder |
| // that do full processor emulation where we cross-compile the |
| // make.bash step as well as pre-compile each std test binary. |
| // |
| // This only reports true if dist is run with an single go_test:foo |
| // argument (as the build coordinator does with our slow qemu-based |
| // builders), we're in a builder environment ("GO_BUILDER_NAME" is set), |
| // and the pre-built test binary exists. |
| func (t *tester) shouldUsePrecompiledStdTest() bool { |
| bin := t.prebuiltGoPackageTestBinary() |
| if bin == "" { |
| return false |
| } |
| _, err := os.Stat(bin) |
| return err == nil |
| } |
| |
| func (t *tester) shouldTestCmd() bool { |
| if goos == "js" && goarch == "wasm" { |
| // Issues 25911, 35220 |
| return false |
| } |
| return true |
| } |
| |
| // prebuiltGoPackageTestBinary returns the path where we'd expect |
| // the pre-built go test binary to be on disk when dist test is run with |
| // a single argument. |
| // It returns an empty string if a pre-built binary should not be used. |
| func (t *tester) prebuiltGoPackageTestBinary() string { |
| if len(stdMatches) != 1 || t.race || t.compileOnly || os.Getenv("GO_BUILDER_NAME") == "" { |
| return "" |
| } |
| pkg := stdMatches[0] |
| return filepath.Join(os.Getenv("GOROOT"), "src", pkg, path.Base(pkg)+".test") |
| } |
| |
| // runPrecompiledStdTest runs the pre-compiled standard library package test binary. |
| // See shouldUsePrecompiledStdTest above; it must return true for this to be called. |
| func (t *tester) runPrecompiledStdTest(timeout time.Duration) error { |
| bin := t.prebuiltGoPackageTestBinary() |
| fmt.Fprintf(os.Stderr, "# %s: using pre-built %s...\n", stdMatches[0], bin) |
| cmd := exec.Command(bin, "-test.short="+short(), "-test.timeout="+timeout.String()) |
| cmd.Dir = filepath.Dir(bin) |
| cmd.Stdout = os.Stdout |
| cmd.Stderr = os.Stderr |
| if err := cmd.Start(); err != nil { |
| return err |
| } |
| // And start a timer to kill the process if it doesn't kill |
| // itself in the prescribed timeout. |
| const backupKillFactor = 1.05 // add 5% |
| timer := time.AfterFunc(time.Duration(float64(timeout)*backupKillFactor), func() { |
| fmt.Fprintf(os.Stderr, "# %s: timeout running %s; killing...\n", stdMatches[0], bin) |
| cmd.Process.Kill() |
| }) |
| defer timer.Stop() |
| return cmd.Wait() |
| } |
| |
| // raceDetectorSupported is a copy of the function |
| // cmd/internal/sys.RaceDetectorSupported, which can't be used here |
| // because cmd/dist has to be buildable by Go 1.4. |
| // 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" |
| 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 |
| } |