1 #![crate_name = "compiletest"]
2 // The `test` crate is the only unstable feature
3 // allowed here, just to share similar code.
8 use crate::common::{expected_output_path, output_base_dir, output_relative_path, UI_EXTENSIONS};
9 use crate::common::{CompareMode, Config, Debugger, Mode, PassMode, TestPaths};
10 use crate::util::logv;
12 use lazycell::LazyCell;
14 use std::ffi::OsString;
16 use std::io::{self, ErrorKind};
17 use std::path::{Path, PathBuf};
18 use std::process::{Command, Stdio};
19 use std::time::SystemTime;
20 use test::ColorConfig;
24 use self::header::{make_test_description, EarlyProps};
40 tracing_subscriber::fmt::init();
42 let config = parse_config(env::args().collect());
44 if config.valgrind_path.is_none() && config.force_valgrind {
45 panic!("Can't find Valgrind to run Valgrind tests");
48 if !config.has_tidy && config.mode == Mode::Rustdoc {
49 eprintln!("warning: `tidy` is not installed; diffs will not be generated");
56 pub fn parse_config(args: Vec<String>) -> Config {
57 let mut opts = Options::new();
58 opts.reqopt("", "compile-lib-path", "path to host shared libraries", "PATH")
59 .reqopt("", "run-lib-path", "path to target shared libraries", "PATH")
60 .reqopt("", "rustc-path", "path to rustc to use for compiling", "PATH")
61 .optopt("", "rustdoc-path", "path to rustdoc to use for compiling", "PATH")
62 .optopt("", "rust-demangler-path", "path to rust-demangler to use in tests", "PATH")
63 .reqopt("", "python", "path to python to use for doc tests", "PATH")
64 .optopt("", "jsondocck-path", "path to jsondocck to use for doc tests", "PATH")
65 .optopt("", "jsondoclint-path", "path to jsondoclint 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("", "sysroot-base", "directory containing the compiler sysroot", "PATH")
73 .reqopt("", "stage-id", "the target-stage identifier", "stageN-TARGET")
77 "which sort of compile tests to run",
78 "run-pass-valgrind | pretty | debug-info | codegen | rustdoc \
79 | rustdoc-json | codegen-units | incremental | run-make | ui | js-doc-test | mir-opt | assembly",
84 "which suite of compile tests to run. used for nicer error reporting.",
90 "force {check,build,run}-pass tests to this mode.",
91 "check | build | run",
93 .optopt("", "run", "whether to execute run-* tests", "auto | always | never")
94 .optflag("", "ignored", "run tests marked as ignored")
95 .optmulti("", "skip", "skip tests matching SUBSTRING. Can be passed multiple times", "SUBSTRING")
96 .optflag("", "exact", "filters match exactly")
100 "supervisor program to run tests under \
101 (eg. emulator, valgrind)",
104 .optmulti("", "host-rustcflags", "flags to pass to rustc for host", "FLAGS")
105 .optmulti("", "target-rustcflags", "flags to pass to rustc for target", "FLAGS")
106 .optflag("", "optimize-tests", "run tests with optimizations enabled")
107 .optflag("", "verbose", "run tests verbosely, showing all output")
111 "overwrite stderr/stdout files instead of complaining about a mismatch",
113 .optflag("", "quiet", "print one character per test instead of one line")
114 .optopt("", "color", "coloring: auto, always, never", "WHEN")
115 .optopt("", "logfile", "file to log test execution to", "FILE")
116 .optopt("", "target", "the target to build for", "TARGET")
117 .optopt("", "host", "the host to build for", "HOST")
118 .optopt("", "cdb", "path to CDB to use for CDB debuginfo tests", "PATH")
119 .optopt("", "gdb", "path to GDB to use for GDB debuginfo tests", "PATH")
120 .optopt("", "lldb-version", "the version of LLDB used", "VERSION STRING")
121 .optopt("", "llvm-version", "the version of LLVM used", "VERSION STRING")
122 .optflag("", "system-llvm", "is LLVM the system LLVM")
123 .optopt("", "android-cross-path", "Android NDK standalone path", "PATH")
124 .optopt("", "adb-path", "path to the android debugger", "PATH")
125 .optopt("", "adb-test-dir", "path to tests for the android debugger", "PATH")
126 .optopt("", "lldb-python-dir", "directory containing LLDB's python module", "PATH")
127 .reqopt("", "cc", "path to a C compiler", "PATH")
128 .reqopt("", "cxx", "path to a C++ compiler", "PATH")
129 .reqopt("", "cflags", "flags for the C compiler", "FLAGS")
130 .reqopt("", "cxxflags", "flags for the CXX compiler", "FLAGS")
131 .optopt("", "ar", "path to an archiver", "PATH")
132 .optopt("", "linker", "path to a linker", "PATH")
133 .reqopt("", "llvm-components", "list of LLVM components built in", "LIST")
134 .optopt("", "llvm-bin-dir", "Path to LLVM's `bin` directory", "PATH")
135 .optopt("", "nodejs", "the name of nodejs", "PATH")
136 .optopt("", "npm", "the name of npm", "PATH")
137 .optopt("", "remote-test-client", "path to the remote test client", "PATH")
141 "mode describing what file the actual ui output will be compared to",
147 "enable this to generate a Rustfix coverage file, which is saved in \
148 `./<build_base>/rustfix_missing_coverage.txt`",
150 .optflag("", "force-rerun", "rerun tests even if the inputs are unchanged")
151 .optflag("h", "help", "show this message")
152 .reqopt("", "channel", "current Rust channel", "CHANNEL")
153 .optopt("", "edition", "default Rust edition", "EDITION");
155 let (argv0, args_) = args.split_first().unwrap();
156 if args.len() == 1 || args[1] == "-h" || args[1] == "--help" {
157 let message = format!("Usage: {} [OPTIONS] [TESTNAME...]", argv0);
158 println!("{}", opts.usage(&message));
163 let matches = &match opts.parse(args_) {
165 Err(f) => panic!("{:?}", f),
168 if matches.opt_present("h") || matches.opt_present("help") {
169 let message = format!("Usage: {} [OPTIONS] [TESTNAME...]", argv0);
170 println!("{}", opts.usage(&message));
175 fn opt_path(m: &getopts::Matches, nm: &str) -> PathBuf {
176 match m.opt_str(nm) {
177 Some(s) => PathBuf::from(&s),
178 None => panic!("no option (=path) found for {}", nm),
182 fn make_absolute(path: PathBuf) -> PathBuf {
183 if path.is_relative() { env::current_dir().unwrap().join(path) } else { path }
186 let target = opt_str2(matches.opt_str("target"));
187 let android_cross_path = opt_path(matches, "android-cross-path");
188 let (cdb, cdb_version) = analyze_cdb(matches.opt_str("cdb"), &target);
189 let (gdb, gdb_version, gdb_native_rust) =
190 analyze_gdb(matches.opt_str("gdb"), &target, &android_cross_path);
191 let (lldb_version, lldb_native_rust) = matches
192 .opt_str("lldb-version")
194 .and_then(extract_lldb_version)
195 .map(|(v, b)| (Some(v), b))
196 .unwrap_or((None, false));
197 let color = match matches.opt_str("color").as_deref() {
198 Some("auto") | None => ColorConfig::AutoColor,
199 Some("always") => ColorConfig::AlwaysColor,
200 Some("never") => ColorConfig::NeverColor,
201 Some(x) => panic!("argument for --color must be auto, always, or never, but found `{}`", x),
204 matches.opt_str("llvm-version").as_deref().and_then(header::extract_llvm_version).or_else(
205 || header::extract_llvm_version_from_binary(&matches.opt_str("llvm-filecheck")?),
208 let src_base = opt_path(matches, "src-base");
209 let run_ignored = matches.opt_present("ignored");
210 let mode = matches.opt_str("mode").unwrap().parse().expect("invalid mode");
211 let has_tidy = if mode == Mode::Rustdoc {
214 .stdout(Stdio::null())
216 .map_or(false, |status| status.success())
218 // Avoid spawning an external command when we know tidy won't be used.
222 bless: matches.opt_present("bless"),
223 compile_lib_path: make_absolute(opt_path(matches, "compile-lib-path")),
224 run_lib_path: make_absolute(opt_path(matches, "run-lib-path")),
225 rustc_path: opt_path(matches, "rustc-path"),
226 rustdoc_path: matches.opt_str("rustdoc-path").map(PathBuf::from),
227 rust_demangler_path: matches.opt_str("rust-demangler-path").map(PathBuf::from),
228 python: matches.opt_str("python").unwrap(),
229 jsondocck_path: matches.opt_str("jsondocck-path"),
230 jsondoclint_path: matches.opt_str("jsondoclint-path"),
231 valgrind_path: matches.opt_str("valgrind-path"),
232 force_valgrind: matches.opt_present("force-valgrind"),
233 run_clang_based_tests_with: matches.opt_str("run-clang-based-tests-with"),
234 llvm_filecheck: matches.opt_str("llvm-filecheck").map(PathBuf::from),
235 llvm_bin_dir: matches.opt_str("llvm-bin-dir").map(PathBuf::from),
237 build_base: opt_path(matches, "build-base"),
238 sysroot_base: opt_path(matches, "sysroot-base"),
239 stage_id: matches.opt_str("stage-id").unwrap(),
241 suite: matches.opt_str("suite").unwrap(),
244 filters: matches.free.clone(),
245 skip: matches.opt_strs("skip"),
246 filter_exact: matches.opt_present("exact"),
247 force_pass_mode: matches.opt_str("pass").map(|mode| {
248 mode.parse::<PassMode>()
249 .unwrap_or_else(|_| panic!("unknown `--pass` option `{}` given", mode))
251 run: matches.opt_str("run").and_then(|mode| match mode.as_str() {
253 "always" => Some(true),
254 "never" => Some(false),
255 _ => panic!("unknown `--run` option `{}` given", mode),
257 logfile: matches.opt_str("logfile").map(|s| PathBuf::from(&s)),
258 runtool: matches.opt_str("runtool"),
259 host_rustcflags: matches.opt_strs("host-rustcflags"),
260 target_rustcflags: matches.opt_strs("target-rustcflags"),
261 optimize_tests: matches.opt_present("optimize-tests"),
263 host: opt_str2(matches.opt_str("host")),
272 system_llvm: matches.opt_present("system-llvm"),
274 adb_path: opt_str2(matches.opt_str("adb-path")),
275 adb_test_dir: opt_str2(matches.opt_str("adb-test-dir")),
276 adb_device_status: opt_str2(matches.opt_str("target")).contains("android")
277 && "(none)" != opt_str2(matches.opt_str("adb-test-dir"))
278 && !opt_str2(matches.opt_str("adb-test-dir")).is_empty(),
279 lldb_python_dir: matches.opt_str("lldb-python-dir"),
280 verbose: matches.opt_present("verbose"),
281 quiet: matches.opt_present("quiet"),
283 remote_test_client: matches.opt_str("remote-test-client").map(PathBuf::from),
284 compare_mode: matches.opt_str("compare-mode").map(CompareMode::parse),
285 rustfix_coverage: matches.opt_present("rustfix-coverage"),
287 channel: matches.opt_str("channel").unwrap(),
288 edition: matches.opt_str("edition"),
290 cc: matches.opt_str("cc").unwrap(),
291 cxx: matches.opt_str("cxx").unwrap(),
292 cflags: matches.opt_str("cflags").unwrap(),
293 cxxflags: matches.opt_str("cxxflags").unwrap(),
294 ar: matches.opt_str("ar").unwrap_or_else(|| String::from("ar")),
295 linker: matches.opt_str("linker"),
296 llvm_components: matches.opt_str("llvm-components").unwrap(),
297 nodejs: matches.opt_str("nodejs"),
298 npm: matches.opt_str("npm"),
300 force_rerun: matches.opt_present("force-rerun"),
302 target_cfg: LazyCell::new(),
306 pub fn log_config(config: &Config) {
308 logv(c, "configuration:".to_string());
309 logv(c, format!("compile_lib_path: {:?}", config.compile_lib_path));
310 logv(c, format!("run_lib_path: {:?}", config.run_lib_path));
311 logv(c, format!("rustc_path: {:?}", config.rustc_path.display()));
312 logv(c, format!("rustdoc_path: {:?}", config.rustdoc_path));
313 logv(c, format!("rust_demangler_path: {:?}", config.rust_demangler_path));
314 logv(c, format!("src_base: {:?}", config.src_base.display()));
315 logv(c, format!("build_base: {:?}", config.build_base.display()));
316 logv(c, format!("stage_id: {}", config.stage_id));
317 logv(c, format!("mode: {}", config.mode));
318 logv(c, format!("run_ignored: {}", config.run_ignored));
319 logv(c, format!("filters: {:?}", config.filters));
320 logv(c, format!("skip: {:?}", config.skip));
321 logv(c, format!("filter_exact: {}", config.filter_exact));
324 format!("force_pass_mode: {}", opt_str(&config.force_pass_mode.map(|m| format!("{}", m))),),
326 logv(c, format!("runtool: {}", opt_str(&config.runtool)));
327 logv(c, format!("host-rustcflags: {:?}", config.host_rustcflags));
328 logv(c, format!("target-rustcflags: {:?}", config.target_rustcflags));
329 logv(c, format!("target: {}", config.target));
330 logv(c, format!("host: {}", config.host));
331 logv(c, format!("android-cross-path: {:?}", config.android_cross_path.display()));
332 logv(c, format!("adb_path: {:?}", config.adb_path));
333 logv(c, format!("adb_test_dir: {:?}", config.adb_test_dir));
334 logv(c, format!("adb_device_status: {}", config.adb_device_status));
335 logv(c, format!("ar: {}", config.ar));
336 logv(c, format!("linker: {:?}", config.linker));
337 logv(c, format!("verbose: {}", config.verbose));
338 logv(c, format!("quiet: {}", config.quiet));
339 logv(c, "\n".to_string());
342 pub fn opt_str(maybestr: &Option<String>) -> &str {
349 pub fn opt_str2(maybestr: Option<String>) -> String {
351 None => "(none)".to_owned(),
356 pub fn run_tests(config: Config) {
357 // If we want to collect rustfix coverage information,
358 // we first make sure that the coverage file does not exist.
359 // It will be created later on.
360 if config.rustfix_coverage {
361 let mut coverage_file_path = config.build_base.clone();
362 coverage_file_path.push("rustfix_missing_coverage.txt");
363 if coverage_file_path.exists() {
364 if let Err(e) = fs::remove_file(&coverage_file_path) {
365 panic!("Could not delete {} due to {}", coverage_file_path.display(), e)
370 // sadly osx needs some file descriptor limits raised for running tests in
371 // parallel (especially when we have lots and lots of child processes).
372 // For context, see #8904
374 raise_fd_limit::raise_fd_limit();
376 // Prevent issue #21352 UAC blocking .exe containing 'patch' etc. on Windows
377 // If #11207 is resolved (adding manifest to .exe) this becomes unnecessary
378 env::set_var("__COMPAT_LAYER", "RunAsInvoker");
380 // Let tests know which target they're running as
381 env::set_var("TARGET", &config.target);
383 let opts = test_opts(&config);
385 let mut configs = Vec::new();
386 if let Mode::DebugInfo = config.mode {
387 // Debugging emscripten code doesn't make sense today
388 if !config.target.contains("emscripten") {
389 configs.extend(configure_cdb(&config));
390 configs.extend(configure_gdb(&config));
391 configs.extend(configure_lldb(&config));
394 configs.push(config.clone());
397 let mut tests = Vec::new();
399 make_tests(c, &mut tests);
402 tests.sort_by(|a, b| a.desc.name.as_slice().cmp(&b.desc.name.as_slice()));
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 config.matches_env("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(&rust_src_dir.join("src/etc/natvis"));
550 stamp.add_dir(&config.run_lib_path);
552 if let Some(ref rustdoc_path) = config.rustdoc_path {
553 stamp.add_path(&rustdoc_path);
554 stamp.add_path(&rust_src_dir.join("src/etc/htmldocck.py"));
557 // Compiletest itself.
558 stamp.add_dir(&rust_src_dir.join("src/tools/compiletest/"));
563 fn collect_tests_from_dir(
566 relative_dir_path: &Path,
568 tests: &mut Vec<test::TestDescAndFn>,
569 ) -> io::Result<()> {
570 // Ignore directories that contain a file named `compiletest-ignore-dir`.
571 if dir.join("compiletest-ignore-dir").exists() {
575 if config.mode == Mode::RunMake && dir.join("Makefile").exists() {
576 let paths = TestPaths {
577 file: dir.to_path_buf(),
578 relative_dir: relative_dir_path.parent().unwrap().to_path_buf(),
580 tests.extend(make_test(config, &paths, inputs));
584 // If we find a test foo/bar.rs, we have to build the
585 // output directory `$build/foo` so we can write
586 // `$build/foo/bar` into it. We do this *now* in this
587 // sequential loop because otherwise, if we do it in the
588 // tests themselves, they race for the privilege of
589 // creating the directories and sometimes fail randomly.
590 let build_dir = output_relative_path(config, relative_dir_path);
591 fs::create_dir_all(&build_dir).unwrap();
593 // Add each `.rs` file as a test, and recurse further on any
594 // subdirectories we find, except for `aux` directories.
595 for file in fs::read_dir(dir)? {
597 let file_path = file.path();
598 let file_name = file.file_name();
599 if is_test(&file_name) {
600 debug!("found test file: {:?}", file_path.display());
602 TestPaths { file: file_path, relative_dir: relative_dir_path.to_path_buf() };
604 tests.extend(make_test(config, &paths, inputs))
605 } else if file_path.is_dir() {
606 let relative_file_path = relative_dir_path.join(file.file_name());
607 if &file_name != "auxiliary" {
608 debug!("found directory: {:?}", file_path.display());
609 collect_tests_from_dir(config, &file_path, &relative_file_path, inputs, tests)?;
612 debug!("found other file/directory: {:?}", file_path.display());
618 /// Returns true if `file_name` looks like a proper test file name.
619 pub fn is_test(file_name: &OsString) -> bool {
620 let file_name = file_name.to_str().unwrap();
622 if !file_name.ends_with(".rs") {
626 // `.`, `#`, and `~` are common temp-file prefixes.
627 let invalid_prefixes = &[".", "#", "~"];
628 !invalid_prefixes.iter().any(|p| file_name.starts_with(p))
631 fn make_test(config: &Config, testpaths: &TestPaths, inputs: &Stamp) -> Vec<test::TestDescAndFn> {
632 let test_path = if config.mode == Mode::RunMake {
633 // Parse directives in the Makefile
634 testpaths.file.join("Makefile")
636 PathBuf::from(&testpaths.file)
638 let early_props = EarlyProps::from_file(config, &test_path);
640 // Incremental tests are special, they inherently cannot be run in parallel.
641 // `runtest::run` will be responsible for iterating over revisions.
642 let revisions = if early_props.revisions.is_empty() || config.mode == Mode::Incremental {
645 early_props.revisions.iter().map(Some).collect()
651 std::fs::File::open(&test_path).expect("open test file to parse ignores");
652 let cfg = revision.map(|v| &**v);
653 let test_name = crate::make_test_name(config, testpaths, revision);
654 let mut desc = make_test_description(config, test_name, &test_path, src_file, cfg);
655 // Ignore tests that already run and are up to date with respect to inputs.
656 if !config.force_rerun {
657 desc.ignore |= is_up_to_date(
661 revision.map(|s| s.as_str()),
665 test::TestDescAndFn { desc, testfn: make_test_closure(config, testpaths, revision) }
670 fn stamp(config: &Config, testpaths: &TestPaths, revision: Option<&str>) -> PathBuf {
671 output_base_dir(config, testpaths, revision).join("stamp")
674 fn files_related_to_test(
676 testpaths: &TestPaths,
678 revision: Option<&str>,
680 let mut related = vec![];
682 if testpaths.file.is_dir() {
683 // run-make tests use their individual directory
684 for entry in WalkDir::new(&testpaths.file) {
685 let path = entry.unwrap().into_path();
691 related.push(testpaths.file.clone());
694 for aux in &props.aux {
695 let path = testpaths.file.parent().unwrap().join("auxiliary").join(aux);
700 for extension in UI_EXTENSIONS {
701 let path = expected_output_path(testpaths, revision, &config.compare_mode, extension);
710 testpaths: &TestPaths,
712 revision: Option<&str>,
715 let stamp_name = stamp(config, testpaths, revision);
717 let contents = match fs::read_to_string(&stamp_name) {
719 Err(ref e) if e.kind() == ErrorKind::InvalidData => panic!("Can't read stamp contents"),
720 Err(_) => return false,
722 let expected_hash = runtest::compute_stamp_hash(config);
723 if contents != expected_hash {
728 let mut inputs = inputs.clone();
729 for path in files_related_to_test(config, testpaths, props, revision) {
730 inputs.add_path(&path);
733 inputs < Stamp::from_path(&stamp_name)
736 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
742 fn from_path(path: &Path) -> Self {
743 let mut stamp = Stamp { time: SystemTime::UNIX_EPOCH };
744 stamp.add_path(path);
748 fn add_path(&mut self, path: &Path) {
749 let modified = fs::metadata(path)
750 .and_then(|metadata| metadata.modified())
751 .unwrap_or(SystemTime::UNIX_EPOCH);
752 self.time = self.time.max(modified);
755 fn add_dir(&mut self, path: &Path) {
756 for entry in WalkDir::new(path) {
757 let entry = entry.unwrap();
758 if entry.file_type().is_file() {
762 .and_then(|metadata| metadata.modified().ok())
763 .unwrap_or(SystemTime::UNIX_EPOCH);
764 self.time = self.time.max(modified);
772 testpaths: &TestPaths,
773 revision: Option<&String>,
774 ) -> test::TestName {
775 // Print the name of the file, relative to the repository root.
776 // `src_base` looks like `/path/to/rust/src/test/ui`
777 let root_directory = config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
778 let path = testpaths.file.strip_prefix(root_directory).unwrap();
779 let debugger = match config.debugger {
780 Some(d) => format!("-{}", d),
781 None => String::new(),
783 let mode_suffix = match config.compare_mode {
784 Some(ref mode) => format!(" ({})", mode.to_str()),
785 None => String::new(),
788 test::DynTestName(format!(
794 revision.map_or("".to_string(), |rev| format!("#{}", rev))
798 fn make_test_closure(
800 testpaths: &TestPaths,
801 revision: Option<&String>,
803 let config = config.clone();
804 let testpaths = testpaths.clone();
805 let revision = revision.cloned();
806 test::DynTestFn(Box::new(move || {
807 runtest::run(config, &testpaths, revision.as_deref());
812 /// Returns `true` if the given target is an Android target for the
813 /// purposes of GDB testing.
814 fn is_android_gdb_target(target: &str) -> bool {
817 "arm-linux-androideabi" | "armv7-linux-androideabi" | "aarch64-linux-android"
821 /// Returns `true` if the given target is a MSVC target for the purpouses of CDB testing.
822 fn is_pc_windows_msvc_target(target: &str) -> bool {
823 target.ends_with("-pc-windows-msvc")
826 fn find_cdb(target: &str) -> Option<OsString> {
827 if !(cfg!(windows) && is_pc_windows_msvc_target(target)) {
831 let pf86 = env::var_os("ProgramFiles(x86)").or_else(|| env::var_os("ProgramFiles"))?;
832 let cdb_arch = if cfg!(target_arch = "x86") {
834 } else if cfg!(target_arch = "x86_64") {
836 } else if cfg!(target_arch = "aarch64") {
838 } else if cfg!(target_arch = "arm") {
841 return None; // No compatible CDB.exe in the Windows 10 SDK
844 let mut path = PathBuf::new();
846 path.push(r"Windows Kits\10\Debuggers"); // We could check 8.1 etc. too?
848 path.push(r"cdb.exe");
854 Some(path.into_os_string())
857 /// Returns Path to CDB
858 fn analyze_cdb(cdb: Option<String>, target: &str) -> (Option<OsString>, Option<[u16; 4]>) {
859 let cdb = cdb.map(OsString::from).or_else(|| find_cdb(target));
861 let mut version = None;
862 if let Some(cdb) = cdb.as_ref() {
863 if let Ok(output) = Command::new(cdb).arg("/version").output() {
864 if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
865 version = extract_cdb_version(&first_line);
873 fn extract_cdb_version(full_version_line: &str) -> Option<[u16; 4]> {
874 // Example full_version_line: "cdb version 10.0.18362.1"
875 let version = full_version_line.rsplit(' ').next()?;
876 let mut components = version.split('.');
877 let major: u16 = components.next().unwrap().parse().unwrap();
878 let minor: u16 = components.next().unwrap().parse().unwrap();
879 let patch: u16 = components.next().unwrap_or("0").parse().unwrap();
880 let build: u16 = components.next().unwrap_or("0").parse().unwrap();
881 Some([major, minor, patch, build])
884 /// Returns (Path to GDB, GDB Version, GDB has Rust Support)
888 android_cross_path: &PathBuf,
889 ) -> (Option<String>, Option<u32>, bool) {
891 const GDB_FALLBACK: &str = "gdb";
893 const GDB_FALLBACK: &str = "gdb.exe";
895 const MIN_GDB_WITH_RUST: u32 = 7011010;
897 let fallback_gdb = || {
898 if is_android_gdb_target(target) {
899 let mut gdb_path = match android_cross_path.to_str() {
900 Some(x) => x.to_owned(),
901 None => panic!("cannot find android cross path"),
903 gdb_path.push_str("/bin/gdb");
906 GDB_FALLBACK.to_owned()
910 let gdb = match gdb {
911 None => fallback_gdb(),
912 Some(ref s) if s.is_empty() => fallback_gdb(), // may be empty if configure found no gdb
913 Some(ref s) => s.to_owned(),
916 let mut version_line = None;
917 if let Ok(output) = Command::new(&gdb).arg("--version").output() {
918 if let Some(first_line) = String::from_utf8_lossy(&output.stdout).lines().next() {
919 version_line = Some(first_line.to_string());
923 let version = match version_line {
924 Some(line) => extract_gdb_version(&line),
925 None => return (None, None, false),
928 let gdb_native_rust = version.map_or(false, |v| v >= MIN_GDB_WITH_RUST);
930 (Some(gdb), version, gdb_native_rust)
933 fn extract_gdb_version(full_version_line: &str) -> Option<u32> {
934 let full_version_line = full_version_line.trim();
936 // GDB versions look like this: "major.minor.patch?.yyyymmdd?", with both
937 // of the ? sections being optional
939 // We will parse up to 3 digits for each component, ignoring the date
941 // We skip text in parentheses. This avoids accidentally parsing
942 // the openSUSE version, which looks like:
943 // GNU gdb (GDB; openSUSE Leap 15.0) 8.1
944 // This particular form is documented in the GNU coding standards:
945 // https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html#g_t_002d_002dversion
947 let unbracketed_part = full_version_line.split('[').next().unwrap();
948 let mut splits = unbracketed_part.trim_end().rsplit(' ');
949 let version_string = splits.next().unwrap();
951 let mut splits = version_string.split('.');
952 let major = splits.next().unwrap();
953 let minor = splits.next().unwrap();
954 let patch = splits.next();
956 let major: u32 = major.parse().unwrap();
957 let (minor, patch): (u32, u32) = match minor.find(not_a_digit) {
959 let minor = minor.parse().unwrap();
960 let patch: u32 = match patch {
961 Some(patch) => match patch.find(not_a_digit) {
962 None => patch.parse().unwrap(),
963 Some(idx) if idx > 3 => 0,
964 Some(idx) => patch[..idx].parse().unwrap(),
970 // There is no patch version after minor-date (e.g. "4-2012").
972 let minor = minor[..idx].parse().unwrap();
977 Some(((major * 1000) + minor) * 1000 + patch)
980 /// Returns (LLDB version, LLDB is rust-enabled)
981 fn extract_lldb_version(full_version_line: &str) -> Option<(u32, bool)> {
982 // Extract the major LLDB version from the given version string.
983 // LLDB version strings are different for Apple and non-Apple platforms.
984 // The Apple variant looks like this:
986 // LLDB-179.5 (older versions)
987 // lldb-300.2.51 (new versions)
989 // We are only interested in the major version number, so this function
990 // will return `Some(179)` and `Some(300)` respectively.
992 // Upstream versions look like:
993 // lldb version 6.0.1
995 // There doesn't seem to be a way to correlate the Apple version
996 // with the upstream version, and since the tests were originally
997 // written against Apple versions, we make a fake Apple version by
998 // multiplying the first number by 100. This is a hack, but
999 // normally fine because the only non-Apple version we test is
1002 let full_version_line = full_version_line.trim();
1004 if let Some(apple_ver) =
1005 full_version_line.strip_prefix("LLDB-").or_else(|| full_version_line.strip_prefix("lldb-"))
1007 if let Some(idx) = apple_ver.find(not_a_digit) {
1008 let version: u32 = apple_ver[..idx].parse().unwrap();
1009 return Some((version, full_version_line.contains("rust-enabled")));
1011 } else if let Some(lldb_ver) = full_version_line.strip_prefix("lldb version ") {
1012 if let Some(idx) = lldb_ver.find(not_a_digit) {
1013 let version: u32 = lldb_ver[..idx].parse().ok()?;
1014 return Some((version * 100, full_version_line.contains("rust-enabled")));
1020 fn not_a_digit(c: char) -> bool {