1 #![crate_name = "compiletest"]
2 // The `test` crate is the only unstable feature
3 // allowed here, just to share similar code.
9 expected_output_path, output_base_dir, output_relative_path, PanicStrategy, UI_EXTENSIONS,
11 use crate::common::{CompareMode, Config, Debugger, Mode, PassMode, TestPaths};
12 use crate::util::logv;
15 use std::ffi::OsString;
17 use std::io::{self, ErrorKind};
18 use std::path::{Path, PathBuf};
19 use std::process::{Command, Stdio};
20 use std::time::SystemTime;
21 use test::ColorConfig;
25 use self::header::{make_test_description, EarlyProps};
41 tracing_subscriber::fmt::init();
43 let config = parse_config(env::args().collect());
45 if config.valgrind_path.is_none() && config.force_valgrind {
46 panic!("Can't find Valgrind to run Valgrind tests");
49 if !config.has_tidy && config.mode == Mode::Rustdoc {
50 eprintln!("warning: `tidy` is not installed; diffs will not be generated");
57 pub fn parse_config(args: Vec<String>) -> Config {
58 let mut opts = Options::new();
59 opts.reqopt("", "compile-lib-path", "path to host shared libraries", "PATH")
60 .reqopt("", "run-lib-path", "path to target shared libraries", "PATH")
61 .reqopt("", "rustc-path", "path to rustc to use for compiling", "PATH")
62 .optopt("", "rustdoc-path", "path to rustdoc to use for compiling", "PATH")
63 .optopt("", "rust-demangler-path", "path to rust-demangler to use in tests", "PATH")
64 .reqopt("", "python", "path to python to use for doc tests", "PATH")
65 .optopt("", "jsondocck-path", "path to jsondocck to use for doc tests", "PATH")
66 .optopt("", "valgrind-path", "path to Valgrind executable for Valgrind tests", "PROGRAM")
67 .optflag("", "force-valgrind", "fail if Valgrind tests cannot be run under Valgrind")
68 .optopt("", "run-clang-based-tests-with", "path to Clang executable", "PATH")
69 .optopt("", "llvm-filecheck", "path to LLVM's FileCheck binary", "DIR")
70 .reqopt("", "src-base", "directory to scan for test files", "PATH")
71 .reqopt("", "build-base", "directory to deposit test outputs", "PATH")
72 .reqopt("", "stage-id", "the target-stage identifier", "stageN-TARGET")
76 "which sort of compile tests to run",
77 "run-pass-valgrind | pretty | debug-info | codegen | rustdoc \
78 | rustdoc-json | codegen-units | incremental | run-make | ui | js-doc-test | mir-opt | assembly",
83 "which suite of compile tests to run. used for nicer error reporting.",
89 "force {check,build,run}-pass tests to this mode.",
90 "check | build | run",
92 .optopt("", "run", "whether to execute run-* tests", "auto | always | never")
93 .optflag("", "ignored", "run tests marked as ignored")
94 .optmulti("", "skip", "skip tests matching SUBSTRING. Can be passed multiple times", "SUBSTRING")
95 .optflag("", "exact", "filters match exactly")
99 "supervisor program to run tests under \
100 (eg. emulator, valgrind)",
103 .optmulti("", "host-rustcflags", "flags to pass to rustc for host", "FLAGS")
104 .optmulti("", "target-rustcflags", "flags to pass to rustc for target", "FLAGS")
105 .optopt("", "target-panic", "what panic strategy the target supports", "unwind | abort")
106 .optflag("", "verbose", "run tests verbosely, showing all output")
110 "overwrite stderr/stdout files instead of complaining about a mismatch",
112 .optflag("", "quiet", "print one character per test instead of one line")
113 .optopt("", "color", "coloring: auto, always, never", "WHEN")
114 .optopt("", "logfile", "file to log test execution to", "FILE")
115 .optopt("", "target", "the target to build for", "TARGET")
116 .optopt("", "host", "the host to build for", "HOST")
117 .optopt("", "cdb", "path to CDB to use for CDB debuginfo tests", "PATH")
118 .optopt("", "gdb", "path to GDB to use for GDB debuginfo tests", "PATH")
119 .optopt("", "lldb-version", "the version of LLDB used", "VERSION STRING")
120 .optopt("", "llvm-version", "the version of LLVM used", "VERSION STRING")
121 .optflag("", "system-llvm", "is LLVM the system LLVM")
122 .optopt("", "android-cross-path", "Android NDK standalone path", "PATH")
123 .optopt("", "adb-path", "path to the android debugger", "PATH")
124 .optopt("", "adb-test-dir", "path to tests for the android debugger", "PATH")
125 .optopt("", "lldb-python-dir", "directory containing LLDB's python module", "PATH")
126 .reqopt("", "cc", "path to a C compiler", "PATH")
127 .reqopt("", "cxx", "path to a C++ compiler", "PATH")
128 .reqopt("", "cflags", "flags for the C compiler", "FLAGS")
129 .reqopt("", "cxxflags", "flags for the CXX compiler", "FLAGS")
130 .optopt("", "ar", "path to an archiver", "PATH")
131 .optopt("", "linker", "path to a linker", "PATH")
132 .reqopt("", "llvm-components", "list of LLVM components built in", "LIST")
133 .optopt("", "llvm-bin-dir", "Path to LLVM's `bin` directory", "PATH")
134 .optopt("", "nodejs", "the name of nodejs", "PATH")
135 .optopt("", "npm", "the name of npm", "PATH")
136 .optopt("", "remote-test-client", "path to the remote test client", "PATH")
140 "mode describing what file the actual ui output will be compared to",
146 "enable this to generate a Rustfix coverage file, which is saved in \
147 `./<build_base>/rustfix_missing_coverage.txt`",
149 .optflag("", "force-rerun", "rerun tests even if the inputs are unchanged")
150 .optflag("h", "help", "show this message")
151 .reqopt("", "channel", "current Rust channel", "CHANNEL")
152 .optopt("", "edition", "default Rust edition", "EDITION");
154 let (argv0, args_) = args.split_first().unwrap();
155 if args.len() == 1 || args[1] == "-h" || args[1] == "--help" {
156 let message = format!("Usage: {} [OPTIONS] [TESTNAME...]", argv0);
157 println!("{}", opts.usage(&message));
162 let matches = &match opts.parse(args_) {
164 Err(f) => panic!("{:?}", f),
167 if matches.opt_present("h") || matches.opt_present("help") {
168 let message = format!("Usage: {} [OPTIONS] [TESTNAME...]", argv0);
169 println!("{}", opts.usage(&message));
174 fn opt_path(m: &getopts::Matches, nm: &str) -> PathBuf {
175 match m.opt_str(nm) {
176 Some(s) => PathBuf::from(&s),
177 None => panic!("no option (=path) found for {}", nm),
181 fn make_absolute(path: PathBuf) -> PathBuf {
182 if path.is_relative() { env::current_dir().unwrap().join(path) } else { path }
185 let target = opt_str2(matches.opt_str("target"));
186 let android_cross_path = opt_path(matches, "android-cross-path");
187 let (cdb, cdb_version) = analyze_cdb(matches.opt_str("cdb"), &target);
188 let (gdb, gdb_version, gdb_native_rust) =
189 analyze_gdb(matches.opt_str("gdb"), &target, &android_cross_path);
190 let (lldb_version, lldb_native_rust) = matches
191 .opt_str("lldb-version")
193 .and_then(extract_lldb_version)
194 .map(|(v, b)| (Some(v), b))
195 .unwrap_or((None, false));
196 let color = match matches.opt_str("color").as_deref() {
197 Some("auto") | None => ColorConfig::AutoColor,
198 Some("always") => ColorConfig::AlwaysColor,
199 Some("never") => ColorConfig::NeverColor,
200 Some(x) => panic!("argument for --color must be auto, always, or never, but found `{}`", x),
203 matches.opt_str("llvm-version").as_deref().and_then(header::extract_llvm_version);
205 let src_base = opt_path(matches, "src-base");
206 let run_ignored = matches.opt_present("ignored");
207 let mode = matches.opt_str("mode").unwrap().parse().expect("invalid mode");
208 let has_tidy = if mode == Mode::Rustdoc {
211 .stdout(Stdio::null())
213 .map_or(false, |status| status.success())
215 // Avoid spawning an external command when we know tidy won't be used.
219 bless: matches.opt_present("bless"),
220 compile_lib_path: make_absolute(opt_path(matches, "compile-lib-path")),
221 run_lib_path: make_absolute(opt_path(matches, "run-lib-path")),
222 rustc_path: opt_path(matches, "rustc-path"),
223 rustdoc_path: matches.opt_str("rustdoc-path").map(PathBuf::from),
224 rust_demangler_path: matches.opt_str("rust-demangler-path").map(PathBuf::from),
225 python: matches.opt_str("python").unwrap(),
226 jsondocck_path: matches.opt_str("jsondocck-path"),
227 valgrind_path: matches.opt_str("valgrind-path"),
228 force_valgrind: matches.opt_present("force-valgrind"),
229 run_clang_based_tests_with: matches.opt_str("run-clang-based-tests-with"),
230 llvm_filecheck: matches.opt_str("llvm-filecheck").map(PathBuf::from),
231 llvm_bin_dir: matches.opt_str("llvm-bin-dir").map(PathBuf::from),
233 build_base: opt_path(matches, "build-base"),
234 stage_id: matches.opt_str("stage-id").unwrap(),
236 suite: matches.opt_str("suite").unwrap(),
239 filters: matches.free.clone(),
240 skip: matches.opt_strs("skip"),
241 filter_exact: matches.opt_present("exact"),
242 force_pass_mode: matches.opt_str("pass").map(|mode| {
243 mode.parse::<PassMode>()
244 .unwrap_or_else(|_| panic!("unknown `--pass` option `{}` given", mode))
246 run: matches.opt_str("run").and_then(|mode| match mode.as_str() {
248 "always" => Some(true),
249 "never" => Some(false),
250 _ => panic!("unknown `--run` option `{}` given", mode),
252 logfile: matches.opt_str("logfile").map(|s| PathBuf::from(&s)),
253 runtool: matches.opt_str("runtool"),
254 host_rustcflags: Some(matches.opt_strs("host-rustcflags").join(" ")),
255 target_rustcflags: Some(matches.opt_strs("target-rustcflags").join(" ")),
256 target_panic: match matches.opt_str("target-panic").as_deref() {
257 Some("unwind") | None => PanicStrategy::Unwind,
258 Some("abort") => PanicStrategy::Abort,
259 _ => panic!("unknown `--target-panic` option `{}` given", mode),
262 host: opt_str2(matches.opt_str("host")),
271 system_llvm: matches.opt_present("system-llvm"),
273 adb_path: opt_str2(matches.opt_str("adb-path")),
274 adb_test_dir: opt_str2(matches.opt_str("adb-test-dir")),
275 adb_device_status: opt_str2(matches.opt_str("target")).contains("android")
276 && "(none)" != opt_str2(matches.opt_str("adb-test-dir"))
277 && !opt_str2(matches.opt_str("adb-test-dir")).is_empty(),
278 lldb_python_dir: matches.opt_str("lldb-python-dir"),
279 verbose: matches.opt_present("verbose"),
280 quiet: matches.opt_present("quiet"),
282 remote_test_client: matches.opt_str("remote-test-client").map(PathBuf::from),
283 compare_mode: matches.opt_str("compare-mode").map(CompareMode::parse),
284 rustfix_coverage: matches.opt_present("rustfix-coverage"),
286 channel: matches.opt_str("channel").unwrap(),
287 edition: matches.opt_str("edition"),
289 cc: matches.opt_str("cc").unwrap(),
290 cxx: matches.opt_str("cxx").unwrap(),
291 cflags: matches.opt_str("cflags").unwrap(),
292 cxxflags: matches.opt_str("cxxflags").unwrap(),
293 ar: matches.opt_str("ar").unwrap_or_else(|| String::from("ar")),
294 linker: matches.opt_str("linker"),
295 llvm_components: matches.opt_str("llvm-components").unwrap(),
296 nodejs: matches.opt_str("nodejs"),
297 npm: matches.opt_str("npm"),
299 force_rerun: matches.opt_present("force-rerun"),
303 pub fn log_config(config: &Config) {
305 logv(c, "configuration:".to_string());
306 logv(c, format!("compile_lib_path: {:?}", config.compile_lib_path));
307 logv(c, format!("run_lib_path: {:?}", config.run_lib_path));
308 logv(c, format!("rustc_path: {:?}", config.rustc_path.display()));
309 logv(c, format!("rustdoc_path: {:?}", config.rustdoc_path));
310 logv(c, format!("rust_demangler_path: {:?}", config.rust_demangler_path));
311 logv(c, format!("src_base: {:?}", config.src_base.display()));
312 logv(c, format!("build_base: {:?}", config.build_base.display()));
313 logv(c, format!("stage_id: {}", config.stage_id));
314 logv(c, format!("mode: {}", config.mode));
315 logv(c, format!("run_ignored: {}", config.run_ignored));
316 logv(c, format!("filters: {:?}", config.filters));
317 logv(c, format!("skip: {:?}", config.skip));
318 logv(c, format!("filter_exact: {}", config.filter_exact));
321 format!("force_pass_mode: {}", opt_str(&config.force_pass_mode.map(|m| format!("{}", m))),),
323 logv(c, format!("runtool: {}", opt_str(&config.runtool)));
324 logv(c, format!("host-rustcflags: {}", opt_str(&config.host_rustcflags)));
325 logv(c, format!("target-rustcflags: {}", opt_str(&config.target_rustcflags)));
326 logv(c, format!("target: {}", config.target));
327 logv(c, format!("host: {}", config.host));
328 logv(c, format!("android-cross-path: {:?}", config.android_cross_path.display()));
329 logv(c, format!("adb_path: {:?}", config.adb_path));
330 logv(c, format!("adb_test_dir: {:?}", config.adb_test_dir));
331 logv(c, format!("adb_device_status: {}", config.adb_device_status));
332 logv(c, format!("ar: {}", config.ar));
333 logv(c, format!("linker: {:?}", config.linker));
334 logv(c, format!("verbose: {}", config.verbose));
335 logv(c, format!("quiet: {}", config.quiet));
336 logv(c, "\n".to_string());
339 pub fn opt_str(maybestr: &Option<String>) -> &str {
346 pub fn opt_str2(maybestr: Option<String>) -> String {
348 None => "(none)".to_owned(),
353 pub fn run_tests(config: Config) {
354 // FIXME(#33435) Avoid spurious failures in codegen-units/partitioning tests.
355 if let Mode::CodegenUnits = config.mode {
356 let _ = fs::remove_dir_all("tmp/partitioning-tests");
359 // If we want to collect rustfix coverage information,
360 // we first make sure that the coverage file does not exist.
361 // It will be created later on.
362 if config.rustfix_coverage {
363 let mut coverage_file_path = config.build_base.clone();
364 coverage_file_path.push("rustfix_missing_coverage.txt");
365 if coverage_file_path.exists() {
366 if let Err(e) = fs::remove_file(&coverage_file_path) {
367 panic!("Could not delete {} due to {}", coverage_file_path.display(), e)
372 // sadly osx needs some file descriptor limits raised for running tests in
373 // parallel (especially when we have lots and lots of child processes).
374 // For context, see #8904
376 raise_fd_limit::raise_fd_limit();
378 // Prevent issue #21352 UAC blocking .exe containing 'patch' etc. on Windows
379 // If #11207 is resolved (adding manifest to .exe) this becomes unnecessary
380 env::set_var("__COMPAT_LAYER", "RunAsInvoker");
382 // Let tests know which target they're running as
383 env::set_var("TARGET", &config.target);
385 let opts = test_opts(&config);
387 let mut configs = Vec::new();
388 if let Mode::DebugInfo = config.mode {
389 // Debugging emscripten code doesn't make sense today
390 if !config.target.contains("emscripten") {
391 configs.extend(configure_cdb(&config));
392 configs.extend(configure_gdb(&config));
393 configs.extend(configure_lldb(&config));
396 configs.push(config.clone());
399 let mut tests = Vec::new();
401 make_tests(c, &mut tests);
404 let res = test::run_tests_console(&opts, tests);
408 // We want to report that the tests failed, but we also want to give
409 // some indication of just what tests we were running. Especially on
410 // CI, where there can be cross-compiled tests for a lot of
411 // architectures, without this critical information it can be quite
412 // easy to miss which tests failed, and as such fail to reproduce
413 // the failure locally.
416 "Some tests failed in compiletest suite={}{} mode={} host={} target={}",
418 config.compare_mode.map(|c| format!(" compare_mode={:?}", c)).unwrap_or_default(),
424 std::process::exit(1);
427 // We don't know if tests passed or not, but if there was an error
428 // during testing we don't want to just succeed (we may not have
429 // tested something), so fail.
431 // This should realistically "never" happen, so don't try to make
432 // this a pretty error message.
433 panic!("I/O failure during tests: {:?}", e);
438 fn configure_cdb(config: &Config) -> Option<Config> {
439 config.cdb.as_ref()?;
441 Some(Config { debugger: Some(Debugger::Cdb), ..config.clone() })
444 fn configure_gdb(config: &Config) -> Option<Config> {
447 if util::matches_env(&config.target, "msvc") {
451 if config.remote_test_client.is_some() && !config.target.contains("android") {
453 "WARNING: debuginfo tests are not available when \
459 if config.target.contains("android") {
461 "{} debug-info test uses tcp 5039 port.\
466 // android debug-info test uses remote debugger so, we test 1 thread
467 // at once as they're all sharing the same TCP port to communicate
470 // we should figure out how to lift this restriction! (run them all
471 // on different ports allocated dynamically).
472 env::set_var("RUST_TEST_THREADS", "1");
475 Some(Config { debugger: Some(Debugger::Gdb), ..config.clone() })
478 fn configure_lldb(config: &Config) -> Option<Config> {
479 config.lldb_python_dir.as_ref()?;
481 if let Some(350) = config.lldb_version {
483 "WARNING: The used version of LLDB (350) has a \
484 known issue that breaks debuginfo tests. See \
485 issue #32520 for more information. Skipping all \
491 Some(Config { debugger: Some(Debugger::Lldb), ..config.clone() })
494 pub fn test_opts(config: &Config) -> test::TestOpts {
496 exclude_should_panic: false,
497 filters: config.filters.clone(),
498 filter_exact: config.filter_exact,
499 run_ignored: if config.run_ignored { test::RunIgnored::Yes } else { test::RunIgnored::No },
500 format: if config.quiet { test::OutputFormat::Terse } else { test::OutputFormat::Pretty },
501 logfile: config.logfile.clone(),
503 bench_benchmarks: true,
504 nocapture: match env::var("RUST_TEST_NOCAPTURE") {
505 Ok(val) => &val != "0",
512 skip: config.skip.clone(),
514 options: test::Options::new(),
516 force_run_in_process: false,
520 pub fn make_tests(config: &Config, tests: &mut Vec<test::TestDescAndFn>) {
521 debug!("making tests from {:?}", config.src_base.display());
522 let inputs = common_inputs_stamp(config);
523 collect_tests_from_dir(config, &config.src_base, &PathBuf::new(), &inputs, tests)
524 .unwrap_or_else(|_| panic!("Could not read tests from {}", config.src_base.display()));
527 /// Returns a stamp constructed from input files common to all test cases.
528 fn common_inputs_stamp(config: &Config) -> Stamp {
529 let rust_src_dir = config.find_rust_src_root().expect("Could not find Rust source root");
531 let mut stamp = Stamp::from_path(&config.rustc_path);
533 // Relevant pretty printer files
534 let pretty_printer_files = [
535 "src/etc/rust_types.py",
536 "src/etc/gdb_load_rust_pretty_printers.py",
537 "src/etc/gdb_lookup.py",
538 "src/etc/gdb_providers.py",
539 "src/etc/lldb_batchmode.py",
540 "src/etc/lldb_lookup.py",
541 "src/etc/lldb_providers.py",
543 for file in &pretty_printer_files {
544 let path = rust_src_dir.join(file);
545 stamp.add_path(&path);
548 stamp.add_dir(&config.run_lib_path);
550 if let Some(ref rustdoc_path) = config.rustdoc_path {
551 stamp.add_path(&rustdoc_path);
552 stamp.add_path(&rust_src_dir.join("src/etc/htmldocck.py"));
555 // Compiletest itself.
556 stamp.add_dir(&rust_src_dir.join("src/tools/compiletest/"));
561 fn collect_tests_from_dir(
564 relative_dir_path: &Path,
566 tests: &mut Vec<test::TestDescAndFn>,
567 ) -> io::Result<()> {
568 // Ignore directories that contain a file named `compiletest-ignore-dir`.
569 if dir.join("compiletest-ignore-dir").exists() {
573 if config.mode == Mode::RunMake && dir.join("Makefile").exists() {
574 let paths = TestPaths {
575 file: dir.to_path_buf(),
576 relative_dir: relative_dir_path.parent().unwrap().to_path_buf(),
578 tests.extend(make_test(config, &paths, inputs));
582 // If we find a test foo/bar.rs, we have to build the
583 // output directory `$build/foo` so we can write
584 // `$build/foo/bar` into it. We do this *now* in this
585 // sequential loop because otherwise, if we do it in the
586 // tests themselves, they race for the privilege of
587 // creating the directories and sometimes fail randomly.
588 let build_dir = output_relative_path(config, relative_dir_path);
589 fs::create_dir_all(&build_dir).unwrap();
591 // Add each `.rs` file as a test, and recurse further on any
592 // subdirectories we find, except for `aux` directories.
593 for file in fs::read_dir(dir)? {
595 let file_path = file.path();
596 let file_name = file.file_name();
597 if is_test(&file_name) {
598 debug!("found test file: {:?}", file_path.display());
600 TestPaths { file: file_path, relative_dir: relative_dir_path.to_path_buf() };
602 tests.extend(make_test(config, &paths, inputs))
603 } else if file_path.is_dir() {
604 let relative_file_path = relative_dir_path.join(file.file_name());
605 if &file_name != "auxiliary" {
606 debug!("found directory: {:?}", file_path.display());
607 collect_tests_from_dir(config, &file_path, &relative_file_path, inputs, tests)?;
610 debug!("found other file/directory: {:?}", file_path.display());
616 /// Returns true if `file_name` looks like a proper test file name.
617 pub fn is_test(file_name: &OsString) -> bool {
618 let file_name = file_name.to_str().unwrap();
620 if !file_name.ends_with(".rs") {
624 // `.`, `#`, and `~` are common temp-file prefixes.
625 let invalid_prefixes = &[".", "#", "~"];
626 !invalid_prefixes.iter().any(|p| file_name.starts_with(p))
629 fn make_test(config: &Config, testpaths: &TestPaths, inputs: &Stamp) -> Vec<test::TestDescAndFn> {
630 let test_path = if config.mode == Mode::RunMake {
631 // Parse directives in the Makefile
632 testpaths.file.join("Makefile")
634 PathBuf::from(&testpaths.file)
636 let early_props = EarlyProps::from_file(config, &test_path);
638 // Incremental tests are special, they inherently cannot be run in parallel.
639 // `runtest::run` will be responsible for iterating over revisions.
640 let revisions = if early_props.revisions.is_empty() || config.mode == Mode::Incremental {
643 early_props.revisions.iter().map(Some).collect()
649 std::fs::File::open(&test_path).expect("open test file to parse ignores");
650 let cfg = revision.map(|v| &**v);
651 let test_name = crate::make_test_name(config, testpaths, revision);
652 let mut desc = make_test_description(config, test_name, &test_path, src_file, cfg);
653 // Ignore tests that already run and are up to date with respect to inputs.
654 if !config.force_rerun {
655 desc.ignore |= is_up_to_date(
659 revision.map(|s| s.as_str()),
663 test::TestDescAndFn { desc, testfn: make_test_closure(config, testpaths, revision) }
668 fn stamp(config: &Config, testpaths: &TestPaths, revision: Option<&str>) -> PathBuf {
669 output_base_dir(config, testpaths, revision).join("stamp")
672 fn files_related_to_test(
674 testpaths: &TestPaths,
676 revision: Option<&str>,
678 let mut related = vec![];
680 if testpaths.file.is_dir() {
681 // run-make tests use their individual directory
682 for entry in WalkDir::new(&testpaths.file) {
683 let path = entry.unwrap().into_path();
689 related.push(testpaths.file.clone());
692 for aux in &props.aux {
693 let path = testpaths.file.parent().unwrap().join("auxiliary").join(aux);
698 for extension in UI_EXTENSIONS {
699 let path = expected_output_path(testpaths, revision, &config.compare_mode, extension);
708 testpaths: &TestPaths,
710 revision: Option<&str>,
713 let stamp_name = stamp(config, testpaths, revision);
715 let contents = match fs::read_to_string(&stamp_name) {
717 Err(ref e) if e.kind() == ErrorKind::InvalidData => panic!("Can't read stamp contents"),
718 Err(_) => return false,
720 let expected_hash = runtest::compute_stamp_hash(config);
721 if contents != expected_hash {
726 let mut inputs = inputs.clone();
727 for path in files_related_to_test(config, testpaths, props, revision) {
728 inputs.add_path(&path);
731 inputs < Stamp::from_path(&stamp_name)
734 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
740 fn from_path(path: &Path) -> Self {
741 let mut stamp = Stamp { time: SystemTime::UNIX_EPOCH };
742 stamp.add_path(path);
746 fn add_path(&mut self, path: &Path) {
747 let modified = fs::metadata(path)
748 .and_then(|metadata| metadata.modified())
749 .unwrap_or(SystemTime::UNIX_EPOCH);
750 self.time = self.time.max(modified);
753 fn add_dir(&mut self, path: &Path) {
754 for entry in WalkDir::new(path) {
755 let entry = entry.unwrap();
756 if entry.file_type().is_file() {
760 .and_then(|metadata| metadata.modified().ok())
761 .unwrap_or(SystemTime::UNIX_EPOCH);
762 self.time = self.time.max(modified);
770 testpaths: &TestPaths,
771 revision: Option<&String>,
772 ) -> test::TestName {
773 // Print the name of the file, relative to the repository root.
774 // `src_base` looks like `/path/to/rust/src/test/ui`
775 let root_directory = config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
776 let path = testpaths.file.strip_prefix(root_directory).unwrap();
777 let debugger = match config.debugger {
778 Some(d) => format!("-{}", d),
779 None => String::new(),
781 let mode_suffix = match config.compare_mode {
782 Some(ref mode) => format!(" ({})", mode.to_str()),
783 None => String::new(),
786 test::DynTestName(format!(
792 revision.map_or("".to_string(), |rev| format!("#{}", rev))
796 fn make_test_closure(
798 testpaths: &TestPaths,
799 revision: Option<&String>,
801 let config = config.clone();
802 let testpaths = testpaths.clone();
803 let revision = revision.cloned();
804 test::DynTestFn(Box::new(move || runtest::run(config, &testpaths, revision.as_deref())))
807 /// Returns `true` if the given target is an Android target for the
808 /// purposes of GDB testing.
809 fn is_android_gdb_target(target: &str) -> bool {
812 "arm-linux-androideabi" | "armv7-linux-androideabi" | "aarch64-linux-android"
816 /// Returns `true` if the given target is a MSVC target for the purpouses of CDB testing.
817 fn is_pc_windows_msvc_target(target: &str) -> bool {
818 target.ends_with("-pc-windows-msvc")
821 fn find_cdb(target: &str) -> Option<OsString> {
822 if !(cfg!(windows) && is_pc_windows_msvc_target(target)) {
826 let pf86 = env::var_os("ProgramFiles(x86)").or_else(|| env::var_os("ProgramFiles"))?;
827 let cdb_arch = if cfg!(target_arch = "x86") {
829 } else if cfg!(target_arch = "x86_64") {
831 } else if cfg!(target_arch = "aarch64") {
833 } else if cfg!(target_arch = "arm") {
836 return None; // No compatible CDB.exe in the Windows 10 SDK
839 let mut path = PathBuf::new();
841 path.push(r"Windows Kits\10\Debuggers"); // We could check 8.1 etc. too?
843 path.push(r"cdb.exe");
849 Some(path.into_os_string())
852 /// Returns Path to CDB
853 fn analyze_cdb(cdb: Option<String>, target: &str) -> (Option<OsString>, Option<[u16; 4]>) {
854 let cdb = cdb.map(OsString::from).or_else(|| find_cdb(target));
856 let mut version = None;
857 if let Some(cdb) = cdb.as_ref() {
858 if let Ok(output) = Command::new(cdb).arg("/version").output() {
859 if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
860 version = extract_cdb_version(&first_line);
868 fn extract_cdb_version(full_version_line: &str) -> Option<[u16; 4]> {
869 // Example full_version_line: "cdb version 10.0.18362.1"
870 let version = full_version_line.rsplit(' ').next()?;
871 let mut components = version.split('.');
872 let major: u16 = components.next().unwrap().parse().unwrap();
873 let minor: u16 = components.next().unwrap().parse().unwrap();
874 let patch: u16 = components.next().unwrap_or("0").parse().unwrap();
875 let build: u16 = components.next().unwrap_or("0").parse().unwrap();
876 Some([major, minor, patch, build])
879 /// Returns (Path to GDB, GDB Version, GDB has Rust Support)
883 android_cross_path: &PathBuf,
884 ) -> (Option<String>, Option<u32>, bool) {
886 const GDB_FALLBACK: &str = "gdb";
888 const GDB_FALLBACK: &str = "gdb.exe";
890 const MIN_GDB_WITH_RUST: u32 = 7011010;
892 let fallback_gdb = || {
893 if is_android_gdb_target(target) {
894 let mut gdb_path = match android_cross_path.to_str() {
895 Some(x) => x.to_owned(),
896 None => panic!("cannot find android cross path"),
898 gdb_path.push_str("/bin/gdb");
901 GDB_FALLBACK.to_owned()
905 let gdb = match gdb {
906 None => fallback_gdb(),
907 Some(ref s) if s.is_empty() => fallback_gdb(), // may be empty if configure found no gdb
908 Some(ref s) => s.to_owned(),
911 let mut version_line = None;
912 if let Ok(output) = Command::new(&gdb).arg("--version").output() {
913 if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
914 version_line = Some(first_line.to_string());
918 let version = match version_line {
919 Some(line) => extract_gdb_version(&line),
920 None => return (None, None, false),
923 let gdb_native_rust = version.map_or(false, |v| v >= MIN_GDB_WITH_RUST);
925 (Some(gdb), version, gdb_native_rust)
928 fn extract_gdb_version(full_version_line: &str) -> Option<u32> {
929 let full_version_line = full_version_line.trim();
931 // GDB versions look like this: "major.minor.patch?.yyyymmdd?", with both
932 // of the ? sections being optional
934 // We will parse up to 3 digits for each component, ignoring the date
936 // We skip text in parentheses. This avoids accidentally parsing
937 // the openSUSE version, which looks like:
938 // GNU gdb (GDB; openSUSE Leap 15.0) 8.1
939 // This particular form is documented in the GNU coding standards:
940 // https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html#g_t_002d_002dversion
942 let unbracketed_part = full_version_line.split('[').next().unwrap();
943 let mut splits = unbracketed_part.trim_end().rsplit(' ');
944 let version_string = splits.next().unwrap();
946 let mut splits = version_string.split('.');
947 let major = splits.next().unwrap();
948 let minor = splits.next().unwrap();
949 let patch = splits.next();
951 let major: u32 = major.parse().unwrap();
952 let (minor, patch): (u32, u32) = match minor.find(not_a_digit) {
954 let minor = minor.parse().unwrap();
955 let patch: u32 = match patch {
956 Some(patch) => match patch.find(not_a_digit) {
957 None => patch.parse().unwrap(),
958 Some(idx) if idx > 3 => 0,
959 Some(idx) => patch[..idx].parse().unwrap(),
965 // There is no patch version after minor-date (e.g. "4-2012").
967 let minor = minor[..idx].parse().unwrap();
972 Some(((major * 1000) + minor) * 1000 + patch)
975 /// Returns (LLDB version, LLDB is rust-enabled)
976 fn extract_lldb_version(full_version_line: &str) -> Option<(u32, bool)> {
977 // Extract the major LLDB version from the given version string.
978 // LLDB version strings are different for Apple and non-Apple platforms.
979 // The Apple variant looks like this:
981 // LLDB-179.5 (older versions)
982 // lldb-300.2.51 (new versions)
984 // We are only interested in the major version number, so this function
985 // will return `Some(179)` and `Some(300)` respectively.
987 // Upstream versions look like:
988 // lldb version 6.0.1
990 // There doesn't seem to be a way to correlate the Apple version
991 // with the upstream version, and since the tests were originally
992 // written against Apple versions, we make a fake Apple version by
993 // multiplying the first number by 100. This is a hack, but
994 // normally fine because the only non-Apple version we test is
997 let full_version_line = full_version_line.trim();
999 if let Some(apple_ver) =
1000 full_version_line.strip_prefix("LLDB-").or_else(|| full_version_line.strip_prefix("lldb-"))
1002 if let Some(idx) = apple_ver.find(not_a_digit) {
1003 let version: u32 = apple_ver[..idx].parse().unwrap();
1004 return Some((version, full_version_line.contains("rust-enabled")));
1006 } else if let Some(lldb_ver) = full_version_line.strip_prefix("lldb version ") {
1007 if let Some(idx) = lldb_ver.find(not_a_digit) {
1008 let version: u32 = lldb_ver[..idx].parse().ok()?;
1009 return Some((version * 100, full_version_line.contains("rust-enabled")));
1015 fn not_a_digit(c: char) -> bool {