1 // ignore-tidy-filelength
3 use crate::common::{expected_output_path, UI_EXTENSIONS, UI_FIXED, UI_STDERR, UI_STDOUT};
4 use crate::common::{output_base_dir, output_base_name, output_testname_unique};
5 use crate::common::{Assembly, Incremental, JsDocTest, MirOpt, RunMake, RustdocJson, Ui};
6 use crate::common::{Codegen, CodegenUnits, DebugInfo, Debugger, Rustdoc};
7 use crate::common::{CompareMode, FailMode, PassMode};
8 use crate::common::{CompileFail, Pretty, RunFail, RunPassValgrind};
9 use crate::common::{Config, TestPaths};
10 use crate::common::{UI_RUN_STDERR, UI_RUN_STDOUT};
11 use crate::errors::{self, Error, ErrorKind};
12 use crate::header::TestProps;
14 use crate::util::get_pointer_width;
15 use crate::util::{logv, PathBufExt};
16 use regex::{Captures, Regex};
17 use rustfix::{apply_suggestions, get_suggestions_from_json, Filter};
19 use std::collections::hash_map::DefaultHasher;
20 use std::collections::{HashMap, HashSet, VecDeque};
22 use std::ffi::{OsStr, OsString};
23 use std::fs::{self, create_dir_all, File, OpenOptions};
24 use std::hash::{Hash, Hasher};
25 use std::io::prelude::*;
26 use std::io::{self, BufReader};
27 use std::path::{Path, PathBuf};
28 use std::process::{Child, Command, ExitStatus, Output, Stdio};
32 use lazy_static::lazy_static;
35 use crate::extract_gdb_version;
36 use crate::is_android_gdb_target;
42 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
44 use winapi::um::errhandlingapi::SetErrorMode;
45 use winapi::um::winbase::SEM_NOGPFAULTERRORBOX;
48 static ref LOCK: Mutex<()> = Mutex::new(());
50 // Error mode is a global variable, so lock it so only one thread will change it
51 let _lock = LOCK.lock().unwrap();
53 // Tell Windows to not show any UI on errors (such as terminating abnormally).
54 // This is important for running tests, since some of them use abnormal
55 // termination by design. This mode is inherited by all child processes.
57 let old_mode = SetErrorMode(SEM_NOGPFAULTERRORBOX); // read inherited flags
58 SetErrorMode(old_mode | SEM_NOGPFAULTERRORBOX);
60 SetErrorMode(old_mode);
66 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
70 /// The name of the environment variable that holds dynamic library locations.
71 pub fn dylib_env_var() -> &'static str {
74 } else if cfg!(target_os = "macos") {
76 } else if cfg!(target_os = "haiku") {
83 /// The platform-specific library name
84 pub fn get_lib_name(lib: &str, dylib: bool) -> String {
85 // In some casess (e.g. MUSL), we build a static
86 // library, rather than a dynamic library.
87 // In this case, the only path we can pass
88 // with '--extern-meta' is the '.lib' file
90 return format!("lib{}.rlib", lib);
94 format!("{}.dll", lib)
95 } else if cfg!(target_os = "macos") {
96 format!("lib{}.dylib", lib)
98 format!("lib{}.so", lib)
102 #[derive(Debug, PartialEq)]
109 #[derive(Debug, PartialEq)]
110 pub struct Mismatch {
111 pub line_number: u32,
112 pub lines: Vec<DiffLine>,
116 fn new(line_number: u32) -> Mismatch {
117 Mismatch { line_number, lines: Vec::new() }
121 // Produces a diff between the expected output and actual output.
122 pub fn make_diff(expected: &str, actual: &str, context_size: usize) -> Vec<Mismatch> {
123 let mut line_number = 1;
124 let mut context_queue: VecDeque<&str> = VecDeque::with_capacity(context_size);
125 let mut lines_since_mismatch = context_size + 1;
126 let mut results = Vec::new();
127 let mut mismatch = Mismatch::new(0);
129 for result in diff::lines(expected, actual) {
131 diff::Result::Left(str) => {
132 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
133 results.push(mismatch);
134 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
137 while let Some(line) = context_queue.pop_front() {
138 mismatch.lines.push(DiffLine::Context(line.to_owned()));
141 mismatch.lines.push(DiffLine::Expected(str.to_owned()));
143 lines_since_mismatch = 0;
145 diff::Result::Right(str) => {
146 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
147 results.push(mismatch);
148 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
151 while let Some(line) = context_queue.pop_front() {
152 mismatch.lines.push(DiffLine::Context(line.to_owned()));
155 mismatch.lines.push(DiffLine::Resulting(str.to_owned()));
156 lines_since_mismatch = 0;
158 diff::Result::Both(str, _) => {
159 if context_queue.len() >= context_size {
160 let _ = context_queue.pop_front();
163 if lines_since_mismatch < context_size {
164 mismatch.lines.push(DiffLine::Context(str.to_owned()));
165 } else if context_size > 0 {
166 context_queue.push_back(str);
170 lines_since_mismatch += 1;
175 results.push(mismatch);
181 fn write_diff(expected: &str, actual: &str, context_size: usize) -> String {
183 let mut output = String::new();
184 let diff_results = make_diff(expected, actual, context_size);
185 for result in diff_results {
186 let mut line_number = result.line_number;
187 for line in result.lines {
189 DiffLine::Expected(e) => {
190 writeln!(output, "-\t{}", e).unwrap();
193 DiffLine::Context(c) => {
194 writeln!(output, "{}\t{}", line_number, c).unwrap();
197 DiffLine::Resulting(r) => {
198 writeln!(output, "+\t{}", r).unwrap();
202 writeln!(output).unwrap();
207 pub fn run(config: Config, testpaths: &TestPaths, revision: Option<&str>) {
208 match &*config.target {
209 "arm-linux-androideabi"
210 | "armv7-linux-androideabi"
211 | "thumbv7neon-linux-androideabi"
212 | "aarch64-linux-android" => {
213 if !config.adb_device_status {
214 panic!("android device not available");
219 // android has its own gdb handling
220 if config.debugger == Some(Debugger::Gdb) && config.gdb.is_none() {
221 panic!("gdb not available but debuginfo gdb debuginfo test requested");
227 // We're going to be dumping a lot of info. Start on a new line.
230 debug!("running {:?}", testpaths.file.display());
231 let props = TestProps::from_file(&testpaths.file, revision, &config);
233 let cx = TestCx { config: &config, props: &props, testpaths, revision };
234 create_dir_all(&cx.output_base_dir()).unwrap();
236 if config.mode == Incremental {
237 // Incremental tests are special because they cannot be run in
239 assert!(!props.revisions.is_empty(), "Incremental tests require revisions.");
240 cx.init_incremental_test();
241 for revision in &props.revisions {
242 let revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
243 let rev_cx = TestCx {
245 props: &revision_props,
247 revision: Some(revision),
249 rev_cx.run_revision();
258 pub fn compute_stamp_hash(config: &Config) -> String {
259 let mut hash = DefaultHasher::new();
260 config.stage_id.hash(&mut hash);
262 match config.debugger {
263 Some(Debugger::Cdb) => {
264 config.cdb.hash(&mut hash);
267 Some(Debugger::Gdb) => {
268 config.gdb.hash(&mut hash);
269 env::var_os("PATH").hash(&mut hash);
270 env::var_os("PYTHONPATH").hash(&mut hash);
273 Some(Debugger::Lldb) => {
274 config.lldb_python.hash(&mut hash);
275 config.lldb_python_dir.hash(&mut hash);
276 env::var_os("PATH").hash(&mut hash);
277 env::var_os("PYTHONPATH").hash(&mut hash);
283 if let Ui = config.mode {
284 config.force_pass_mode.hash(&mut hash);
287 format!("{:x}", hash.finish())
290 #[derive(Copy, Clone)]
291 struct TestCx<'test> {
292 config: &'test Config,
293 props: &'test TestProps,
294 testpaths: &'test TestPaths,
295 revision: Option<&'test str>,
298 struct DebuggerCommands {
299 commands: Vec<String>,
300 check_lines: Vec<String>,
301 breakpoint_lines: Vec<usize>,
314 /// Will this test be executed? Should we use `make_exe_name`?
315 #[derive(Copy, Clone, PartialEq)]
321 /// Should `--emit metadata` be used?
322 #[derive(Copy, Clone)]
328 impl<'test> TestCx<'test> {
329 /// Code executed for each revision in turn (or, if there are no
330 /// revisions, exactly once, with revision == None).
331 fn run_revision(&self) {
332 if self.props.should_ice {
333 if self.config.mode != CompileFail && self.config.mode != Incremental {
334 self.fatal("cannot use should-ice in a test that is not cfail");
337 match self.config.mode {
338 CompileFail => self.run_cfail_test(),
339 RunFail => self.run_rfail_test(),
340 RunPassValgrind => self.run_valgrind_test(),
341 Pretty => self.run_pretty_test(),
342 DebugInfo => self.run_debuginfo_test(),
343 Codegen => self.run_codegen_test(),
344 Rustdoc => self.run_rustdoc_test(),
345 RustdocJson => self.run_rustdoc_json_test(),
346 CodegenUnits => self.run_codegen_units_test(),
347 Incremental => self.run_incremental_test(),
348 RunMake => self.run_rmake_test(),
349 Ui => self.run_ui_test(),
350 MirOpt => self.run_mir_opt_test(),
351 Assembly => self.run_assembly_test(),
352 JsDocTest => self.run_js_doc_test(),
356 fn pass_mode(&self) -> Option<PassMode> {
357 self.props.pass_mode(self.config)
360 fn should_run(&self, pm: Option<PassMode>) -> WillExecute {
361 match self.config.mode {
362 Ui if pm == Some(PassMode::Run) || self.props.fail_mode == Some(FailMode::Run) => {
365 MirOpt if pm == Some(PassMode::Run) => WillExecute::Yes,
366 Ui | MirOpt => WillExecute::No,
367 mode => panic!("unimplemented for mode {:?}", mode),
371 fn should_run_successfully(&self, pm: Option<PassMode>) -> bool {
372 match self.config.mode {
373 Ui | MirOpt => pm == Some(PassMode::Run),
374 mode => panic!("unimplemented for mode {:?}", mode),
378 fn should_compile_successfully(&self, pm: Option<PassMode>) -> bool {
379 match self.config.mode {
380 CompileFail => false,
382 Ui => pm.is_some() || self.props.fail_mode > Some(FailMode::Build),
385 self.revision.expect("incremental tests require a list of revisions");
386 if revision.starts_with("rpass") || revision.starts_with("rfail") {
388 } else if revision.starts_with("cfail") {
389 // FIXME: would be nice if incremental revs could start with "cpass"
392 panic!("revision name must begin with rpass, rfail, or cfail");
395 mode => panic!("unimplemented for mode {:?}", mode),
399 fn check_if_test_should_compile(&self, proc_res: &ProcRes, pm: Option<PassMode>) {
400 if self.should_compile_successfully(pm) {
401 if !proc_res.status.success() {
402 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
405 if proc_res.status.success() {
407 &format!("{} test compiled successfully!", self.config.mode)[..],
412 self.check_correct_failure_status(proc_res);
416 fn run_cfail_test(&self) {
417 let pm = self.pass_mode();
418 let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm));
419 self.check_if_test_should_compile(&proc_res, pm);
420 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
422 let output_to_check = self.get_output(&proc_res);
423 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
424 if !expected_errors.is_empty() {
425 if !self.props.error_patterns.is_empty() {
426 self.fatal("both error pattern and expected errors specified");
428 self.check_expected_errors(expected_errors, &proc_res);
430 self.check_error_patterns(&output_to_check, &proc_res, pm);
432 if self.props.should_ice {
433 match proc_res.status.code() {
435 _ => self.fatal("expected ICE"),
439 self.check_forbid_output(&output_to_check, &proc_res);
442 fn run_rfail_test(&self) {
443 let pm = self.pass_mode();
444 let proc_res = self.compile_test(WillExecute::Yes, self.should_emit_metadata(pm));
446 if !proc_res.status.success() {
447 self.fatal_proc_rec("compilation failed!", &proc_res);
450 let proc_res = self.exec_compiled_test();
452 // The value our Makefile configures valgrind to return on failure
453 const VALGRIND_ERR: i32 = 100;
454 if proc_res.status.code() == Some(VALGRIND_ERR) {
455 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
458 let output_to_check = self.get_output(&proc_res);
459 self.check_correct_failure_status(&proc_res);
460 self.check_error_patterns(&output_to_check, &proc_res, pm);
463 fn get_output(&self, proc_res: &ProcRes) -> String {
464 if self.props.check_stdout {
465 format!("{}{}", proc_res.stdout, proc_res.stderr)
467 proc_res.stderr.clone()
471 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
472 let expected_status = Some(self.props.failure_status);
473 let received_status = proc_res.status.code();
475 if expected_status != received_status {
478 "Error: expected failure status ({:?}) but received status {:?}.",
479 expected_status, received_status
486 fn run_rpass_test(&self) {
487 let emit_metadata = self.should_emit_metadata(self.pass_mode());
488 let proc_res = self.compile_test(WillExecute::Yes, emit_metadata);
490 if !proc_res.status.success() {
491 self.fatal_proc_rec("compilation failed!", &proc_res);
494 // FIXME(#41968): Move this check to tidy?
495 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
497 expected_errors.is_empty(),
498 "run-pass tests with expected warnings should be moved to ui/"
501 let proc_res = self.exec_compiled_test();
502 if !proc_res.status.success() {
503 self.fatal_proc_rec("test run failed!", &proc_res);
507 fn run_valgrind_test(&self) {
508 assert!(self.revision.is_none(), "revisions not relevant here");
510 if self.config.valgrind_path.is_none() {
511 assert!(!self.config.force_valgrind);
512 return self.run_rpass_test();
515 let mut proc_res = self.compile_test(WillExecute::Yes, EmitMetadata::No);
517 if !proc_res.status.success() {
518 self.fatal_proc_rec("compilation failed!", &proc_res);
521 let mut new_config = self.config.clone();
522 new_config.runtool = new_config.valgrind_path.clone();
523 let new_cx = TestCx { config: &new_config, ..*self };
524 proc_res = new_cx.exec_compiled_test();
526 if !proc_res.status.success() {
527 self.fatal_proc_rec("test run failed!", &proc_res);
531 fn run_pretty_test(&self) {
532 if self.props.pp_exact.is_some() {
533 logv(self.config, "testing for exact pretty-printing".to_owned());
535 logv(self.config, "testing for converging pretty-printing".to_owned());
538 let rounds = match self.props.pp_exact {
543 let src = fs::read_to_string(&self.testpaths.file).unwrap();
544 let mut srcs = vec![src];
547 while round < rounds {
550 format!("pretty-printing round {} revision {:?}", round, self.revision),
553 if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) };
555 let proc_res = self.print_source(read_from, &self.props.pretty_mode);
556 if !proc_res.status.success() {
559 "pretty-printing failed in round {} revision {:?}",
566 let ProcRes { stdout, .. } = proc_res;
571 let mut expected = match self.props.pp_exact {
573 let filepath = self.testpaths.file.parent().unwrap().join(file);
574 fs::read_to_string(&filepath).unwrap()
576 None => srcs[srcs.len() - 2].clone(),
578 let mut actual = srcs[srcs.len() - 1].clone();
580 if self.props.pp_exact.is_some() {
581 // Now we have to care about line endings
582 let cr = "\r".to_owned();
583 actual = actual.replace(&cr, "");
584 expected = expected.replace(&cr, "");
587 self.compare_source(&expected, &actual);
589 // If we're only making sure that the output matches then just stop here
590 if self.props.pretty_compare_only {
594 // Finally, let's make sure it actually appears to remain valid code
595 let proc_res = self.typecheck_source(actual);
596 if !proc_res.status.success() {
597 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
600 if !self.props.pretty_expanded {
604 // additionally, run `--pretty expanded` and try to build it.
605 let proc_res = self.print_source(ReadFrom::Path, "expanded");
606 if !proc_res.status.success() {
607 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
610 let ProcRes { stdout: expanded_src, .. } = proc_res;
611 let proc_res = self.typecheck_source(expanded_src);
612 if !proc_res.status.success() {
613 self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res);
617 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
618 let aux_dir = self.aux_output_dir_name();
619 let input: &str = match read_from {
620 ReadFrom::Stdin(_) => "-",
621 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
624 let mut rustc = Command::new(&self.config.rustc_path);
627 .args(&["-Z", &format!("unpretty={}", pretty_type)])
628 .args(&["--target", &self.config.target])
631 .args(&self.props.compile_flags)
632 .envs(self.props.rustc_env.clone());
633 self.maybe_add_external_args(
635 self.split_maybe_args(&self.config.target_rustcflags),
638 let src = match read_from {
639 ReadFrom::Stdin(src) => Some(src),
640 ReadFrom::Path => None,
643 self.compose_and_run(
645 self.config.compile_lib_path.to_str().unwrap(),
646 Some(aux_dir.to_str().unwrap()),
651 fn compare_source(&self, expected: &str, actual: &str) {
652 if expected != actual {
654 "pretty-printed source does not match expected source\n\
656 ------------------------------------------\n\
658 ------------------------------------------\n\
660 ------------------------------------------\n\
662 ------------------------------------------\n\
664 ------------------------------------------\n\
668 write_diff(expected, actual, 3),
673 fn set_revision_flags(&self, cmd: &mut Command) {
674 if let Some(revision) = self.revision {
675 // Normalize revisions to be lowercase and replace `-`s with `_`s.
676 // Otherwise the `--cfg` flag is not valid.
677 let normalized_revision = revision.to_lowercase().replace("-", "_");
678 cmd.args(&["--cfg", &normalized_revision]);
682 fn typecheck_source(&self, src: String) -> ProcRes {
683 let mut rustc = Command::new(&self.config.rustc_path);
685 let out_dir = self.output_base_name().with_extension("pretty-out");
686 let _ = fs::remove_dir_all(&out_dir);
687 create_dir_all(&out_dir).unwrap();
689 let target = if self.props.force_host { &*self.config.host } else { &*self.config.target };
691 let aux_dir = self.aux_output_dir_name();
698 .arg(&format!("--target={}", target))
700 .arg(&self.config.build_base)
703 self.set_revision_flags(&mut rustc);
704 self.maybe_add_external_args(
706 self.split_maybe_args(&self.config.target_rustcflags),
708 rustc.args(&self.props.compile_flags);
710 self.compose_and_run_compiler(rustc, Some(src))
713 fn run_debuginfo_test(&self) {
714 match self.config.debugger.unwrap() {
715 Debugger::Cdb => self.run_debuginfo_cdb_test(),
716 Debugger::Gdb => self.run_debuginfo_gdb_test(),
717 Debugger::Lldb => self.run_debuginfo_lldb_test(),
721 fn run_debuginfo_cdb_test(&self) {
722 assert!(self.revision.is_none(), "revisions not relevant here");
724 let config = Config {
725 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
726 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
727 ..self.config.clone()
730 let test_cx = TestCx { config: &config, ..*self };
732 test_cx.run_debuginfo_cdb_test_no_opt();
735 fn run_debuginfo_cdb_test_no_opt(&self) {
736 // compile test file (it should have 'compile-flags:-g' in the header)
737 let compile_result = self.compile_test(WillExecute::Yes, EmitMetadata::No);
738 if !compile_result.status.success() {
739 self.fatal_proc_rec("compilation failed!", &compile_result);
742 let exe_file = self.make_exe_name();
745 static PREFIXES: &[&str] = &["cdb", "cdbg"];
746 // No "native rust support" variation for CDB yet.
750 // Parse debugger commands etc from test files
751 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
752 self.parse_debugger_commands(prefixes);
754 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
755 let mut script_str = String::with_capacity(2048);
756 script_str.push_str("version\n"); // List CDB (and more) version info in test output
757 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
759 // Set breakpoints on every line that contains the string "#break"
760 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
761 for line in &breakpoint_lines {
762 script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line));
765 // Append the other `cdb-command:`s
766 for line in &commands {
767 script_str.push_str(line);
768 script_str.push_str("\n");
771 script_str.push_str("\nqq\n"); // Quit the debugger (including remote debugger, if any)
773 // Write the script into a file
774 debug!("script_str = {}", script_str);
775 self.dump_output_file(&script_str, "debugger.script");
776 let debugger_script = self.make_out_name("debugger.script");
778 let cdb_path = &self.config.cdb.as_ref().unwrap();
779 let mut cdb = Command::new(cdb_path);
780 cdb.arg("-lines") // Enable source line debugging.
782 .arg(&debugger_script)
785 let debugger_run_result = self.compose_and_run(
787 self.config.run_lib_path.to_str().unwrap(),
792 if !debugger_run_result.status.success() {
793 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
796 self.check_debugger_output(&debugger_run_result, &check_lines);
799 fn run_debuginfo_gdb_test(&self) {
800 assert!(self.revision.is_none(), "revisions not relevant here");
802 let config = Config {
803 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
804 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
805 ..self.config.clone()
808 let test_cx = TestCx { config: &config, ..*self };
810 test_cx.run_debuginfo_gdb_test_no_opt();
813 fn run_debuginfo_gdb_test_no_opt(&self) {
814 let prefixes = if self.config.gdb_native_rust {
816 static PREFIXES: &[&str] = &["gdb", "gdbr"];
817 println!("NOTE: compiletest thinks it is using GDB with native rust support");
821 static PREFIXES: &[&str] = &["gdb", "gdbg"];
822 println!("NOTE: compiletest thinks it is using GDB without native rust support");
826 let DebuggerCommands { commands, check_lines, breakpoint_lines } =
827 self.parse_debugger_commands(prefixes);
828 let mut cmds = commands.join("\n");
830 // compile test file (it should have 'compile-flags:-g' in the header)
831 let compiler_run_result = self.compile_test(WillExecute::Yes, EmitMetadata::No);
832 if !compiler_run_result.status.success() {
833 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
836 let exe_file = self.make_exe_name();
838 let debugger_run_result;
839 if is_android_gdb_target(&self.config.target) {
840 cmds = cmds.replace("run", "continue");
842 let tool_path = match self.config.android_cross_path.to_str() {
843 Some(x) => x.to_owned(),
844 None => self.fatal("cannot find android cross path"),
847 // write debugger script
848 let mut script_str = String::with_capacity(2048);
849 script_str.push_str(&format!("set charset {}\n", Self::charset()));
850 script_str.push_str(&format!("set sysroot {}\n", tool_path));
851 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
852 script_str.push_str("target remote :5039\n");
853 script_str.push_str(&format!(
854 "set solib-search-path \
855 ./{}/stage2/lib/rustlib/{}/lib/\n",
856 self.config.host, self.config.target
858 for line in &breakpoint_lines {
862 self.testpaths.file.file_name().unwrap().to_string_lossy(),
867 script_str.push_str(&cmds);
868 script_str.push_str("\nquit\n");
870 debug!("script_str = {}", script_str);
871 self.dump_output_file(&script_str, "debugger.script");
873 let adb_path = &self.config.adb_path;
875 Command::new(adb_path)
878 .arg(&self.config.adb_test_dir)
880 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
882 Command::new(adb_path)
883 .args(&["forward", "tcp:5039", "tcp:5039"])
885 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
887 let adb_arg = format!(
888 "export LD_LIBRARY_PATH={}; \
889 gdbserver{} :5039 {}/{}",
890 self.config.adb_test_dir.clone(),
891 if self.config.target.contains("aarch64") { "64" } else { "" },
892 self.config.adb_test_dir.clone(),
893 exe_file.file_name().unwrap().to_str().unwrap()
896 debug!("adb arg: {}", adb_arg);
897 let mut adb = Command::new(adb_path)
898 .args(&["shell", &adb_arg])
899 .stdout(Stdio::piped())
900 .stderr(Stdio::inherit())
902 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
904 // Wait for the gdbserver to print out "Listening on port ..."
905 // at which point we know that it's started and then we can
906 // execute the debugger below.
907 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
908 let mut line = String::new();
911 stdout.read_line(&mut line).unwrap();
912 if line.starts_with("Listening on port 5039") {
918 let mut debugger_script = OsString::from("-command=");
919 debugger_script.push(self.make_out_name("debugger.script"));
920 let debugger_opts: &[&OsStr] =
921 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
923 let gdb_path = self.config.gdb.as_ref().unwrap();
924 let Output { status, stdout, stderr } = Command::new(&gdb_path)
927 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", gdb_path));
929 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
930 gdb.args(debugger_opts);
931 let cmdline = self.make_cmdline(&gdb, "");
932 logv(self.config, format!("executing {}", cmdline));
936 debugger_run_result = ProcRes {
938 stdout: String::from_utf8(stdout).unwrap(),
939 stderr: String::from_utf8(stderr).unwrap(),
942 if adb.kill().is_err() {
943 println!("Adb process is already finished.");
947 self.config.find_rust_src_root().expect("Could not find Rust source root");
948 let rust_pp_module_rel_path = Path::new("./src/etc");
949 let rust_pp_module_abs_path =
950 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
951 // write debugger script
952 let mut script_str = String::with_capacity(2048);
953 script_str.push_str(&format!("set charset {}\n", Self::charset()));
954 script_str.push_str("show version\n");
956 match self.config.gdb_version {
958 println!("NOTE: compiletest thinks it is using GDB version {}", version);
960 if version > extract_gdb_version("7.4").unwrap() {
961 // Add the directory containing the pretty printers to
962 // GDB's script auto loading safe path
963 script_str.push_str(&format!(
964 "add-auto-load-safe-path {}\n",
965 rust_pp_module_abs_path.replace(r"\", r"\\")
971 "NOTE: compiletest does not know which version of \
977 // The following line actually doesn't have to do anything with
978 // pretty printing, it just tells GDB to print values on one line:
979 script_str.push_str("set print pretty off\n");
981 // Add the pretty printer directory to GDB's source-file search path
983 .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\")));
985 // Load the target executable
987 .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\")));
989 // Force GDB to print values in the Rust format.
990 if self.config.gdb_native_rust {
991 script_str.push_str("set language rust\n");
994 // Add line breakpoints
995 for line in &breakpoint_lines {
996 script_str.push_str(&format!(
998 self.testpaths.file.file_name().unwrap().to_string_lossy(),
1003 script_str.push_str(&cmds);
1004 script_str.push_str("\nquit\n");
1006 debug!("script_str = {}", script_str);
1007 self.dump_output_file(&script_str, "debugger.script");
1009 let mut debugger_script = OsString::from("-command=");
1010 debugger_script.push(self.make_out_name("debugger.script"));
1012 let debugger_opts: &[&OsStr] =
1013 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
1015 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
1016 gdb.args(debugger_opts).env("PYTHONPATH", rust_pp_module_abs_path);
1018 debugger_run_result =
1019 self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None);
1022 if !debugger_run_result.status.success() {
1023 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
1026 self.check_debugger_output(&debugger_run_result, &check_lines);
1029 fn run_debuginfo_lldb_test(&self) {
1030 assert!(self.revision.is_none(), "revisions not relevant here");
1032 if self.config.lldb_python_dir.is_none() {
1033 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1036 let config = Config {
1037 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1038 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1039 ..self.config.clone()
1042 let test_cx = TestCx { config: &config, ..*self };
1044 test_cx.run_debuginfo_lldb_test_no_opt();
1047 fn run_debuginfo_lldb_test_no_opt(&self) {
1048 // compile test file (it should have 'compile-flags:-g' in the header)
1049 let compile_result = self.compile_test(WillExecute::Yes, EmitMetadata::No);
1050 if !compile_result.status.success() {
1051 self.fatal_proc_rec("compilation failed!", &compile_result);
1054 let exe_file = self.make_exe_name();
1056 match self.config.lldb_version {
1057 Some(ref version) => {
1058 println!("NOTE: compiletest thinks it is using LLDB version {}", version);
1062 "NOTE: compiletest does not know which version of \
1068 let prefixes = if self.config.lldb_native_rust {
1069 static PREFIXES: &[&str] = &["lldb", "lldbr"];
1070 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1073 static PREFIXES: &[&str] = &["lldb", "lldbg"];
1074 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1078 // Parse debugger commands etc from test files
1079 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
1080 self.parse_debugger_commands(prefixes);
1082 // Write debugger script:
1083 // We don't want to hang when calling `quit` while the process is still running
1084 let mut script_str = String::from("settings set auto-confirm true\n");
1086 // Make LLDB emit its version, so we have it documented in the test output
1087 script_str.push_str("version\n");
1089 // Switch LLDB into "Rust mode"
1091 self.config.find_rust_src_root().expect("Could not find Rust source root");
1092 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_lookup.py");
1093 let rust_pp_module_abs_path =
1094 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
1096 let rust_type_regexes = vec![
1097 "^(alloc::([a-z_]+::)+)String$",
1100 "^(std::ffi::([a-z_]+::)+)OsString$",
1101 "^(alloc::([a-z_]+::)+)Vec<.+>$",
1102 "^(alloc::([a-z_]+::)+)VecDeque<.+>$",
1103 "^(alloc::([a-z_]+::)+)BTreeSet<.+>$",
1104 "^(alloc::([a-z_]+::)+)BTreeMap<.+>$",
1105 "^(std::collections::([a-z_]+::)+)HashMap<.+>$",
1106 "^(std::collections::([a-z_]+::)+)HashSet<.+>$",
1107 "^(alloc::([a-z_]+::)+)Rc<.+>$",
1108 "^(alloc::([a-z_]+::)+)Arc<.+>$",
1109 "^(core::([a-z_]+::)+)Cell<.+>$",
1110 "^(core::([a-z_]+::)+)Ref<.+>$",
1111 "^(core::([a-z_]+::)+)RefMut<.+>$",
1112 "^(core::([a-z_]+::)+)RefCell<.+>$",
1116 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1117 script_str.push_str("type synthetic add -l lldb_lookup.synthetic_lookup -x '.*' ");
1118 script_str.push_str("--category Rust\n");
1119 for type_regex in rust_type_regexes {
1120 script_str.push_str("type summary add -F lldb_lookup.summary_lookup -e -x -h ");
1121 script_str.push_str(&format!("'{}' ", type_regex));
1122 script_str.push_str("--category Rust\n");
1124 script_str.push_str("type category enable Rust\n");
1126 // Set breakpoints on every line that contains the string "#break"
1127 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1128 for line in &breakpoint_lines {
1129 script_str.push_str(&format!(
1130 "breakpoint set --file '{}' --line {}\n",
1131 source_file_name, line
1135 // Append the other commands
1136 for line in &commands {
1137 script_str.push_str(line);
1138 script_str.push_str("\n");
1141 // Finally, quit the debugger
1142 script_str.push_str("\nquit\n");
1144 // Write the script into a file
1145 debug!("script_str = {}", script_str);
1146 self.dump_output_file(&script_str, "debugger.script");
1147 let debugger_script = self.make_out_name("debugger.script");
1149 // Let LLDB execute the script via lldb_batchmode.py
1150 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1152 if !debugger_run_result.status.success() {
1153 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1156 self.check_debugger_output(&debugger_run_result, &check_lines);
1161 test_executable: &Path,
1162 debugger_script: &Path,
1163 rust_src_root: &Path,
1165 // Prepare the lldb_batchmode which executes the debugger script
1166 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1168 Command::new(&self.config.lldb_python)
1169 .arg(&lldb_script_path)
1170 .arg(test_executable)
1171 .arg(debugger_script)
1172 .env("PYTHONUNBUFFERED", "1") // Help debugging #78665
1173 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1177 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1178 let (status, out, err) = match cmd.output() {
1179 Ok(Output { status, stdout, stderr }) => {
1180 (status, String::from_utf8(stdout).unwrap(), String::from_utf8(stderr).unwrap())
1182 Err(e) => self.fatal(&format!(
1183 "Failed to setup Python process for \
1189 self.dump_output(&out, &err);
1190 ProcRes { status, stdout: out, stderr: err, cmdline: format!("{:?}", cmd) }
1193 fn parse_debugger_commands(&self, debugger_prefixes: &[&str]) -> DebuggerCommands {
1194 let directives = debugger_prefixes
1196 .map(|prefix| (format!("{}-command", prefix), format!("{}-check", prefix)))
1197 .collect::<Vec<_>>();
1199 let mut breakpoint_lines = vec![];
1200 let mut commands = vec![];
1201 let mut check_lines = vec![];
1202 let mut counter = 1;
1203 let reader = BufReader::new(File::open(&self.testpaths.file).unwrap());
1204 for line in reader.lines() {
1208 if line.starts_with("//") { line[2..].trim_start() } else { line.as_str() };
1210 if line.contains("#break") {
1211 breakpoint_lines.push(counter);
1214 for &(ref command_directive, ref check_directive) in &directives {
1216 .parse_name_value_directive(&line, command_directive)
1217 .map(|cmd| commands.push(cmd));
1220 .parse_name_value_directive(&line, check_directive)
1221 .map(|cmd| check_lines.push(cmd));
1224 Err(e) => self.fatal(&format!("Error while parsing debugger commands: {}", e)),
1229 DebuggerCommands { commands, check_lines, breakpoint_lines }
1232 fn cleanup_debug_info_options(&self, options: &Option<String>) -> Option<String> {
1233 if options.is_none() {
1237 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1238 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1239 let new_options = self
1240 .split_maybe_args(options)
1242 .filter(|x| !options_to_remove.contains(x))
1243 .collect::<Vec<String>>();
1245 Some(new_options.join(" "))
1248 fn maybe_add_external_args(&self, cmd: &mut Command, args: Vec<String>) {
1249 // Filter out the arguments that should not be added by runtest here.
1251 // Notable use-cases are: do not add our optimisation flag if
1252 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1253 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/ "opt-level="];
1254 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/ "debuginfo="];
1256 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1257 // its arguments. They need to be collected separately. For now I cannot be bothered to
1258 // implement this the "right" way.
1260 self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f)));
1261 let have_debug_flag = self
1265 .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)));
1268 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1271 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1278 fn check_debugger_output(&self, debugger_run_result: &ProcRes, check_lines: &[String]) {
1279 let num_check_lines = check_lines.len();
1281 let mut check_line_index = 0;
1282 for line in debugger_run_result.stdout.lines() {
1283 if check_line_index >= num_check_lines {
1287 if check_single_line(line, &(check_lines[check_line_index])[..]) {
1288 check_line_index += 1;
1291 if check_line_index != num_check_lines && num_check_lines > 0 {
1292 self.fatal_proc_rec(
1293 &format!("line not found in debugger output: {}", check_lines[check_line_index]),
1294 debugger_run_result,
1298 fn check_single_line(line: &str, check_line: &str) -> bool {
1299 // Allow check lines to leave parts unspecified (e.g., uninitialized
1300 // bits in the wrong case of an enum) with the notation "[...]".
1301 let line = line.trim();
1302 let check_line = check_line.trim();
1303 let can_start_anywhere = check_line.starts_with("[...]");
1304 let can_end_anywhere = check_line.ends_with("[...]");
1306 let check_fragments: Vec<&str> =
1307 check_line.split("[...]").filter(|frag| !frag.is_empty()).collect();
1308 if check_fragments.is_empty() {
1312 let (mut rest, first_fragment) = if can_start_anywhere {
1313 match line.find(check_fragments[0]) {
1314 Some(pos) => (&line[pos + check_fragments[0].len()..], 1),
1315 None => return false,
1321 for current_fragment in &check_fragments[first_fragment..] {
1322 match rest.find(current_fragment) {
1324 rest = &rest[pos + current_fragment.len()..];
1326 None => return false,
1330 if !can_end_anywhere && !rest.is_empty() {
1338 fn check_error_patterns(
1340 output_to_check: &str,
1342 pm: Option<PassMode>,
1344 debug!("check_error_patterns");
1345 if self.props.error_patterns.is_empty() {
1350 self.fatal(&format!(
1351 "no error pattern specified in {:?}",
1352 self.testpaths.file.display()
1357 let mut missing_patterns: Vec<String> = Vec::new();
1359 for pattern in &self.props.error_patterns {
1360 if output_to_check.contains(pattern.trim()) {
1361 debug!("found error pattern {}", pattern);
1363 missing_patterns.push(pattern.to_string());
1367 if missing_patterns.is_empty() {
1371 if missing_patterns.len() == 1 {
1372 self.fatal_proc_rec(
1373 &format!("error pattern '{}' not found!", missing_patterns[0]),
1377 for pattern in missing_patterns {
1378 self.error(&format!("error pattern '{}' not found!", pattern));
1380 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1384 fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) {
1385 match proc_res.status.code() {
1386 Some(101) if !should_ice => {
1387 self.fatal_proc_rec("compiler encountered internal error", proc_res)
1389 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1394 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1395 for pat in &self.props.forbid_output {
1396 if output_to_check.contains(pat) {
1397 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1402 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1404 "check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1405 expected_errors, proc_res.status
1407 if proc_res.status.success()
1408 && expected_errors.iter().any(|x| x.kind == Some(ErrorKind::Error))
1410 self.fatal_proc_rec("process did not return an error status", proc_res);
1413 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1414 // from the compiler
1415 let os_file_name = self.testpaths.file.display().to_string();
1417 // on windows, translate all '\' path separators to '/'
1418 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1420 // If the testcase being checked contains at least one expected "help"
1421 // message, then we'll ensure that all "help" messages are expected.
1422 // Otherwise, all "help" messages reported by the compiler will be ignored.
1423 // This logic also applies to "note" messages.
1424 let expect_help = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Help));
1425 let expect_note = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Note));
1427 // Parse the JSON output from the compiler and extract out the messages.
1428 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1429 let mut unexpected = Vec::new();
1430 let mut found = vec![false; expected_errors.len()];
1431 for actual_error in &actual_errors {
1433 expected_errors.iter().enumerate().position(|(index, expected_error)| {
1435 && actual_error.line_num == expected_error.line_num
1436 && (expected_error.kind.is_none()
1437 || actual_error.kind == expected_error.kind)
1438 && actual_error.msg.contains(&expected_error.msg)
1443 // found a match, everybody is happy
1444 assert!(!found[index]);
1445 found[index] = true;
1449 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1450 self.error(&format!(
1451 "{}:{}: unexpected {}: '{}'",
1453 actual_error.line_num,
1457 .map_or(String::from("message"), |k| k.to_string()),
1460 unexpected.push(actual_error);
1466 let mut not_found = Vec::new();
1467 // anything not yet found is a problem
1468 for (index, expected_error) in expected_errors.iter().enumerate() {
1470 self.error(&format!(
1471 "{}:{}: expected {} not found: {}",
1473 expected_error.line_num,
1474 expected_error.kind.as_ref().map_or("message".into(), |k| k.to_string()),
1477 not_found.push(expected_error);
1481 if !unexpected.is_empty() || !not_found.is_empty() {
1482 self.error(&format!(
1483 "{} unexpected errors found, {} expected errors not found",
1487 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1488 if !unexpected.is_empty() {
1489 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1491 if !not_found.is_empty() {
1492 println!("not found errors (from test file): {:#?}\n", not_found);
1498 /// Returns `true` if we should report an error about `actual_error`,
1499 /// which did not match any of the expected error. We always require
1500 /// errors/warnings to be explicitly listed, but only require
1501 /// helps/notes if there are explicit helps/notes given.
1502 fn is_unexpected_compiler_message(
1504 actual_error: &Error,
1508 match actual_error.kind {
1509 Some(ErrorKind::Help) => expect_help,
1510 Some(ErrorKind::Note) => expect_note,
1511 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1512 Some(ErrorKind::Suggestion) | None => false,
1516 fn should_emit_metadata(&self, pm: Option<PassMode>) -> EmitMetadata {
1517 match (pm, self.props.fail_mode, self.config.mode) {
1518 (Some(PassMode::Check), ..) | (_, Some(FailMode::Check), Ui) => EmitMetadata::Yes,
1519 _ => EmitMetadata::No,
1523 fn compile_test(&self, will_execute: WillExecute, emit_metadata: EmitMetadata) -> ProcRes {
1524 self.compile_test_general(will_execute, emit_metadata, self.props.local_pass_mode())
1527 fn compile_test_general(
1529 will_execute: WillExecute,
1530 emit_metadata: EmitMetadata,
1531 local_pm: Option<PassMode>,
1533 // Only use `make_exe_name` when the test ends up being executed.
1534 let output_file = match will_execute {
1535 WillExecute::Yes => TargetLocation::ThisFile(self.make_exe_name()),
1536 WillExecute::No => TargetLocation::ThisDirectory(self.output_base_dir()),
1539 let allow_unused = match self.config.mode {
1540 CompileFail | Ui => {
1541 // compile-fail and ui tests tend to have tons of unused code as
1542 // it's just testing various pieces of the compile, but we don't
1543 // want to actually assert warnings about all this code. Instead
1544 // let's just ignore unused code warnings by defaults and tests
1545 // can turn it back on if needed.
1546 if !self.is_rustdoc()
1547 // Note that we use the local pass mode here as we don't want
1548 // to set unused to allow if we've overridden the pass mode
1549 // via command line flags.
1550 && local_pm != Some(PassMode::Run)
1557 _ => AllowUnused::No,
1561 self.make_compile_args(&self.testpaths.file, output_file, emit_metadata, allow_unused);
1563 rustc.arg("-L").arg(&self.aux_output_dir_name());
1565 self.compose_and_run_compiler(rustc, None)
1568 fn document(&self, out_dir: &Path) -> ProcRes {
1569 if self.props.build_aux_docs {
1570 for rel_ab in &self.props.aux_builds {
1571 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1573 self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1574 let aux_cx = TestCx {
1575 config: self.config,
1577 testpaths: &aux_testpaths,
1578 revision: self.revision,
1580 // Create the directory for the stdout/stderr files.
1581 create_dir_all(aux_cx.output_base_dir()).unwrap();
1582 let auxres = aux_cx.document(out_dir);
1583 if !auxres.status.success() {
1589 let aux_dir = self.aux_output_dir_name();
1591 let rustdoc_path = self.config.rustdoc_path.as_ref().expect("--rustdoc-path passed");
1592 let mut rustdoc = Command::new(rustdoc_path);
1596 .arg(self.config.run_lib_path.to_str().unwrap())
1601 .arg(&self.testpaths.file)
1602 .args(&self.props.compile_flags);
1604 if self.config.mode == RustdocJson {
1605 rustdoc.arg("--output-format").arg("json");
1608 if let Some(ref linker) = self.config.linker {
1609 rustdoc.arg(format!("-Clinker={}", linker));
1612 self.compose_and_run_compiler(rustdoc, None)
1615 fn exec_compiled_test(&self) -> ProcRes {
1616 let env = &self.props.exec_env;
1618 let proc_res = match &*self.config.target {
1619 // This is pretty similar to below, we're transforming:
1621 // program arg1 arg2
1625 // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2
1627 // The test-client program will upload `program` to the emulator
1628 // along with all other support libraries listed (in this case
1629 // `support-lib.so` and `support-lib2.so`. It will then execute
1630 // the program on the emulator with the arguments specified
1631 // (in the environment we give the process) and then report back
1633 _ if self.config.remote_test_client.is_some() => {
1634 let aux_dir = self.aux_output_dir_name();
1635 let ProcArgs { prog, args } = self.make_run_args();
1636 let mut support_libs = Vec::new();
1637 if let Ok(entries) = aux_dir.read_dir() {
1638 for entry in entries {
1639 let entry = entry.unwrap();
1640 if !entry.path().is_file() {
1643 support_libs.push(entry.path());
1646 let mut test_client =
1647 Command::new(self.config.remote_test_client.as_ref().unwrap());
1649 .args(&["run", &support_libs.len().to_string(), &prog])
1653 self.compose_and_run(
1655 self.config.run_lib_path.to_str().unwrap(),
1656 Some(aux_dir.to_str().unwrap()),
1660 _ if self.config.target.contains("vxworks") => {
1661 let aux_dir = self.aux_output_dir_name();
1662 let ProcArgs { prog, args } = self.make_run_args();
1663 let mut wr_run = Command::new("wr-run");
1664 wr_run.args(&[&prog]).args(args).envs(env.clone());
1665 self.compose_and_run(
1667 self.config.run_lib_path.to_str().unwrap(),
1668 Some(aux_dir.to_str().unwrap()),
1673 let aux_dir = self.aux_output_dir_name();
1674 let ProcArgs { prog, args } = self.make_run_args();
1675 let mut program = Command::new(&prog);
1676 program.args(args).current_dir(&self.output_base_dir()).envs(env.clone());
1677 self.compose_and_run(
1679 self.config.run_lib_path.to_str().unwrap(),
1680 Some(aux_dir.to_str().unwrap()),
1686 if proc_res.status.success() {
1687 // delete the executable after running it to save space.
1688 // it is ok if the deletion failed.
1689 let _ = fs::remove_file(self.make_exe_name());
1695 /// For each `aux-build: foo/bar` annotation, we check to find the
1696 /// file in a `auxiliary` directory relative to the test itself.
1697 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1702 .expect("test file path has no parent")
1705 if !test_ab.exists() {
1706 self.fatal(&format!("aux-build `{}` source not found", test_ab.display()))
1714 .join(self.output_testname_unique())
1718 .expect("aux-build path has no parent")
1723 fn is_vxworks_pure_static(&self) -> bool {
1724 if self.config.target.contains("vxworks") {
1725 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1734 fn is_vxworks_pure_dynamic(&self) -> bool {
1735 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1738 fn build_all_auxiliary(&self, rustc: &mut Command) -> PathBuf {
1739 let aux_dir = self.aux_output_dir_name();
1741 if !self.props.aux_builds.is_empty() {
1742 let _ = fs::remove_dir_all(&aux_dir);
1743 create_dir_all(&aux_dir).unwrap();
1746 for rel_ab in &self.props.aux_builds {
1747 self.build_auxiliary(rel_ab, &aux_dir);
1750 for (aux_name, aux_path) in &self.props.aux_crates {
1751 let is_dylib = self.build_auxiliary(&aux_path, &aux_dir);
1753 get_lib_name(&aux_path.trim_end_matches(".rs").replace('-', "_"), is_dylib);
1754 rustc.arg("--extern").arg(format!("{}={}/{}", aux_name, aux_dir.display(), lib_name));
1760 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1761 let aux_dir = self.build_all_auxiliary(&mut rustc);
1762 self.props.unset_rustc_env.clone().iter().fold(&mut rustc, |rustc, v| rustc.env_remove(v));
1763 rustc.envs(self.props.rustc_env.clone());
1764 self.compose_and_run(
1766 self.config.compile_lib_path.to_str().unwrap(),
1767 Some(aux_dir.to_str().unwrap()),
1772 /// Builds an aux dependency.
1774 /// Returns whether or not it is a dylib.
1775 fn build_auxiliary(&self, source_path: &str, aux_dir: &Path) -> bool {
1776 let aux_testpaths = self.compute_aux_test_paths(source_path);
1777 let aux_props = self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1778 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1779 let aux_cx = TestCx {
1780 config: self.config,
1782 testpaths: &aux_testpaths,
1783 revision: self.revision,
1785 // Create the directory for the stdout/stderr files.
1786 create_dir_all(aux_cx.output_base_dir()).unwrap();
1787 let input_file = &aux_testpaths.file;
1789 aux_cx.make_compile_args(input_file, aux_output, EmitMetadata::No, AllowUnused::No);
1791 for key in &aux_props.unset_rustc_env {
1792 aux_rustc.env_remove(key);
1794 aux_rustc.envs(aux_props.rustc_env.clone());
1796 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1798 } else if self.config.target.contains("emscripten")
1799 || (self.config.target.contains("musl")
1800 && !aux_props.force_host
1801 && !self.config.host.contains("musl"))
1802 || self.config.target.contains("wasm32")
1803 || self.config.target.contains("nvptx")
1804 || self.is_vxworks_pure_static()
1805 || self.config.target.contains("sgx")
1807 // We primarily compile all auxiliary libraries as dynamic libraries
1808 // to avoid code size bloat and large binaries as much as possible
1809 // for the test suite (otherwise including libstd statically in all
1810 // executables takes up quite a bit of space).
1812 // For targets like MUSL or Emscripten, however, there is no support for
1813 // dynamic libraries so we just go back to building a normal library. Note,
1814 // however, that for MUSL if the library is built with `force_host` then
1815 // it's ok to be a dylib as the host should always support dylibs.
1816 (false, Some("lib"))
1818 (true, Some("dylib"))
1821 if let Some(crate_type) = crate_type {
1822 aux_rustc.args(&["--crate-type", crate_type]);
1825 aux_rustc.arg("-L").arg(&aux_dir);
1827 let auxres = aux_cx.compose_and_run(
1829 aux_cx.config.compile_lib_path.to_str().unwrap(),
1830 Some(aux_dir.to_str().unwrap()),
1833 if !auxres.status.success() {
1834 self.fatal_proc_rec(
1836 "auxiliary build of {:?} failed to compile: ",
1837 aux_testpaths.file.display()
1847 mut command: Command,
1849 aux_path: Option<&str>,
1850 input: Option<String>,
1853 let cmdline = self.make_cmdline(&command, lib_path);
1854 logv(self.config, format!("executing {}", cmdline));
1858 command.stdout(Stdio::piped()).stderr(Stdio::piped()).stdin(Stdio::piped());
1860 // Need to be sure to put both the lib_path and the aux path in the dylib
1861 // search path for the child.
1863 env::split_paths(&env::var_os(dylib_env_var()).unwrap_or_default()).collect::<Vec<_>>();
1864 if let Some(p) = aux_path {
1865 path.insert(0, PathBuf::from(p))
1867 path.insert(0, PathBuf::from(lib_path));
1869 // Add the new dylib search path var
1870 let newpath = env::join_paths(&path).unwrap();
1871 command.env(dylib_env_var(), newpath);
1873 let mut child = disable_error_reporting(|| command.spawn())
1874 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", &command));
1875 if let Some(input) = input {
1876 child.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();
1879 let Output { status, stdout, stderr } =
1880 read2_abbreviated(child).expect("failed to read output");
1882 let result = ProcRes {
1884 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1885 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1889 self.dump_output(&result.stdout, &result.stderr);
1894 fn is_rustdoc(&self) -> bool {
1895 self.config.src_base.ends_with("rustdoc-ui")
1896 || self.config.src_base.ends_with("rustdoc-js")
1897 || self.config.src_base.ends_with("rustdoc-json")
1900 fn make_compile_args(
1903 output_file: TargetLocation,
1904 emit_metadata: EmitMetadata,
1905 allow_unused: AllowUnused,
1907 let is_aux = input_file.components().map(|c| c.as_os_str()).any(|c| c == "auxiliary");
1908 let is_rustdoc = self.is_rustdoc() && !is_aux;
1909 let mut rustc = if !is_rustdoc {
1910 Command::new(&self.config.rustc_path)
1912 Command::new(&self.config.rustdoc_path.clone().expect("no rustdoc built yet"))
1914 // FIXME Why is -L here?
1915 rustc.arg(input_file); //.arg("-L").arg(&self.config.build_base);
1917 // Use a single thread for efficiency and a deterministic error message order
1918 rustc.arg("-Zthreads=1");
1920 // Optionally prevent default --target if specified in test compile-flags.
1921 let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target"));
1925 if self.props.force_host { &*self.config.host } else { &*self.config.target };
1927 rustc.arg(&format!("--target={}", target));
1929 self.set_revision_flags(&mut rustc);
1932 if let Some(ref incremental_dir) = self.props.incremental_dir {
1933 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1934 rustc.args(&["-Z", "incremental-verify-ich"]);
1937 if self.config.mode == CodegenUnits {
1938 rustc.args(&["-Z", "human_readable_cgu_names"]);
1942 match self.config.mode {
1943 CompileFail | Incremental => {
1944 // If we are extracting and matching errors in the new
1945 // fashion, then you want JSON mode. Old-skool error
1946 // patterns still match the raw compiler output.
1947 if self.props.error_patterns.is_empty() {
1948 rustc.args(&["--error-format", "json"]);
1950 rustc.arg("-Zui-testing");
1951 rustc.arg("-Zdeduplicate-diagnostics=no");
1954 if !self.props.compile_flags.iter().any(|s| s.starts_with("--error-format")) {
1955 rustc.args(&["--error-format", "json"]);
1957 rustc.arg("-Zui-testing");
1958 rustc.arg("-Zdeduplicate-diagnostics=no");
1959 rustc.arg("-Zemit-future-incompat-report");
1964 "-Zmir-opt-level=3",
1966 "-Zdump-mir-exclude-pass-number",
1969 let mir_dump_dir = self.get_mir_dump_dir();
1970 let _ = fs::remove_dir_all(&mir_dump_dir);
1971 create_dir_all(mir_dump_dir.as_path()).unwrap();
1972 let mut dir_opt = "-Zdump-mir-dir=".to_string();
1973 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
1974 debug!("dir_opt: {:?}", dir_opt);
1978 RunFail | RunPassValgrind | Pretty | DebugInfo | Codegen | Rustdoc | RustdocJson
1979 | RunMake | CodegenUnits | JsDocTest | Assembly => {
1980 // do not use JSON output
1984 if let (false, EmitMetadata::Yes) = (is_rustdoc, emit_metadata) {
1985 rustc.args(&["--emit", "metadata"]);
1989 if self.config.target == "wasm32-unknown-unknown" || self.is_vxworks_pure_static() {
1990 // rustc.arg("-g"); // get any backtrace at all on errors
1991 } else if !self.props.no_prefer_dynamic {
1992 rustc.args(&["-C", "prefer-dynamic"]);
1997 TargetLocation::ThisFile(path) => {
1998 rustc.arg("-o").arg(path);
2000 TargetLocation::ThisDirectory(path) => {
2002 // `rustdoc` uses `-o` for the output directory.
2003 rustc.arg("-o").arg(path);
2005 rustc.arg("--out-dir").arg(path);
2010 match self.config.compare_mode {
2011 Some(CompareMode::Nll) => {
2012 rustc.args(&["-Zborrowck=mir"]);
2014 Some(CompareMode::Polonius) => {
2015 rustc.args(&["-Zpolonius", "-Zborrowck=mir"]);
2017 Some(CompareMode::Chalk) => {
2018 rustc.args(&["-Zchalk"]);
2023 // Add `-A unused` before `config` flags and in-test (`props`) flags, so that they can
2025 if let AllowUnused::Yes = allow_unused {
2026 rustc.args(&["-A", "unused"]);
2029 if self.props.force_host {
2030 self.maybe_add_external_args(
2032 self.split_maybe_args(&self.config.host_rustcflags),
2035 self.maybe_add_external_args(
2037 self.split_maybe_args(&self.config.target_rustcflags),
2040 if let Some(ref linker) = self.config.linker {
2041 rustc.arg(format!("-Clinker={}", linker));
2046 // Use dynamic musl for tests because static doesn't allow creating dylibs
2047 if self.config.host.contains("musl") || self.is_vxworks_pure_dynamic() {
2048 rustc.arg("-Ctarget-feature=-crt-static");
2051 rustc.args(&self.props.compile_flags);
2056 fn make_exe_name(&self) -> PathBuf {
2057 // Using a single letter here to keep the path length down for
2058 // Windows. Some test names get very long. rustc creates `rcgu`
2059 // files with the module name appended to it which can more than
2060 // double the length.
2061 let mut f = self.output_base_dir().join("a");
2062 // FIXME: This is using the host architecture exe suffix, not target!
2063 if self.config.target.contains("emscripten") {
2064 f = f.with_extra_extension("js");
2065 } else if self.config.target.contains("wasm32") {
2066 f = f.with_extra_extension("wasm");
2067 } else if !env::consts::EXE_SUFFIX.is_empty() {
2068 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2073 fn make_run_args(&self) -> ProcArgs {
2074 // If we've got another tool to run under (valgrind),
2075 // then split apart its command
2076 let mut args = self.split_maybe_args(&self.config.runtool);
2078 // If this is emscripten, then run tests under nodejs
2079 if self.config.target.contains("emscripten") {
2080 if let Some(ref p) = self.config.nodejs {
2081 args.push(p.clone());
2083 self.fatal("no NodeJS binary found (--nodejs)");
2085 // If this is otherwise wasm, then run tests under nodejs with our
2087 } else if self.config.target.contains("wasm32") {
2088 if let Some(ref p) = self.config.nodejs {
2089 args.push(p.clone());
2091 self.fatal("no NodeJS binary found (--nodejs)");
2098 .unwrap() // chop off `ui`
2100 .unwrap() // chop off `test`
2102 .unwrap(); // chop off `src`
2103 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2106 let exe_file = self.make_exe_name();
2108 // FIXME (#9639): This needs to handle non-utf8 paths
2109 args.push(exe_file.to_str().unwrap().to_owned());
2111 // Add the arguments in the run_flags directive
2112 args.extend(self.split_maybe_args(&self.props.run_flags));
2114 let prog = args.remove(0);
2115 ProcArgs { prog, args }
2118 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2123 if s.chars().all(|c| c.is_whitespace()) { None } else { Some(s.to_owned()) }
2130 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2133 // Linux and mac don't require adjusting the library search path
2135 format!("{:?}", command)
2137 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2138 // for diagnostic purposes
2139 fn lib_path_cmd_prefix(path: &str) -> String {
2140 format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
2143 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2147 fn dump_output(&self, out: &str, err: &str) {
2148 let revision = if let Some(r) = self.revision { format!("{}.", r) } else { String::new() };
2150 self.dump_output_file(out, &format!("{}out", revision));
2151 self.dump_output_file(err, &format!("{}err", revision));
2152 self.maybe_dump_to_stdout(out, err);
2155 fn dump_output_file(&self, out: &str, extension: &str) {
2156 let outfile = self.make_out_name(extension);
2157 fs::write(&outfile, out).unwrap();
2160 /// Creates a filename for output with the given extension.
2161 /// E.g., `/.../testname.revision.mode/testname.extension`.
2162 fn make_out_name(&self, extension: &str) -> PathBuf {
2163 self.output_base_name().with_extension(extension)
2166 /// Gets the directory where auxiliary files are written.
2167 /// E.g., `/.../testname.revision.mode/auxiliary/`.
2168 fn aux_output_dir_name(&self) -> PathBuf {
2169 self.output_base_dir()
2171 .with_extra_extension(self.config.mode.disambiguator())
2174 /// Generates a unique name for the test, such as `testname.revision.mode`.
2175 fn output_testname_unique(&self) -> PathBuf {
2176 output_testname_unique(self.config, self.testpaths, self.safe_revision())
2179 /// The revision, ignored for incremental compilation since it wants all revisions in
2180 /// the same directory.
2181 fn safe_revision(&self) -> Option<&str> {
2182 if self.config.mode == Incremental { None } else { self.revision }
2185 /// Gets the absolute path to the directory where all output for the given
2186 /// test/revision should reside.
2187 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2188 fn output_base_dir(&self) -> PathBuf {
2189 output_base_dir(self.config, self.testpaths, self.safe_revision())
2192 /// Gets the absolute path to the base filename used as output for the given
2194 /// E.g., `/.../relative/testname.revision.mode/testname`.
2195 fn output_base_name(&self) -> PathBuf {
2196 output_base_name(self.config, self.testpaths, self.safe_revision())
2199 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2200 if self.config.verbose {
2201 println!("------{}------------------------------", "stdout");
2202 println!("{}", out);
2203 println!("------{}------------------------------", "stderr");
2204 println!("{}", err);
2205 println!("------------------------------------------");
2209 fn error(&self, err: &str) {
2210 match self.revision {
2211 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2212 None => println!("\nerror: {}", err),
2216 fn fatal(&self, err: &str) -> ! {
2218 error!("fatal error, panic: {:?}", err);
2219 panic!("fatal error");
2222 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2224 proc_res.fatal(None, || ());
2227 fn fatal_proc_rec_with_ctx(
2231 on_failure: impl FnOnce(Self),
2234 proc_res.fatal(None, || on_failure(*self));
2237 // codegen tests (using FileCheck)
2239 fn compile_test_and_save_ir(&self) -> ProcRes {
2240 let aux_dir = self.aux_output_dir_name();
2242 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2243 let input_file = &self.testpaths.file;
2245 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2246 rustc.arg("-L").arg(aux_dir).arg("--emit=llvm-ir");
2248 self.compose_and_run_compiler(rustc, None)
2251 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2252 // This works with both `--emit asm` (as default output name for the assembly)
2253 // and `ptx-linker` because the latter can write output at requested location.
2254 let output_path = self.output_base_name().with_extension("s");
2256 let output_file = TargetLocation::ThisFile(output_path.clone());
2257 let input_file = &self.testpaths.file;
2259 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2261 rustc.arg("-L").arg(self.aux_output_dir_name());
2263 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2264 Some("emit-asm") => {
2265 rustc.arg("--emit=asm");
2268 Some("ptx-linker") => {
2269 // No extra flags needed.
2272 Some(_) => self.fatal("unknown 'assembly-output' header"),
2273 None => self.fatal("missing 'assembly-output' header"),
2276 (self.compose_and_run_compiler(rustc, None), output_path)
2279 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2280 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2281 filecheck.arg("--input-file").arg(output).arg(&self.testpaths.file);
2282 // It would be more appropriate to make most of the arguments configurable through
2283 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2286 // For now, though…
2287 if let Some(rev) = self.revision {
2288 let prefixes = format!("CHECK,{}", rev);
2289 filecheck.args(&["--check-prefixes", &prefixes]);
2291 self.compose_and_run(filecheck, "", None, None)
2294 fn run_codegen_test(&self) {
2295 if self.config.llvm_filecheck.is_none() {
2296 self.fatal("missing --llvm-filecheck");
2299 let proc_res = self.compile_test_and_save_ir();
2300 if !proc_res.status.success() {
2301 self.fatal_proc_rec("compilation failed!", &proc_res);
2304 let output_path = self.output_base_name().with_extension("ll");
2305 let proc_res = self.verify_with_filecheck(&output_path);
2306 if !proc_res.status.success() {
2307 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2311 fn run_assembly_test(&self) {
2312 if self.config.llvm_filecheck.is_none() {
2313 self.fatal("missing --llvm-filecheck");
2316 let (proc_res, output_path) = self.compile_test_and_save_assembly();
2317 if !proc_res.status.success() {
2318 self.fatal_proc_rec("compilation failed!", &proc_res);
2321 let proc_res = self.verify_with_filecheck(&output_path);
2322 if !proc_res.status.success() {
2323 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2327 fn charset() -> &'static str {
2328 // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset
2329 if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" }
2332 fn run_rustdoc_test(&self) {
2333 assert!(self.revision.is_none(), "revisions not relevant here");
2335 let out_dir = self.output_base_dir();
2336 let _ = fs::remove_dir_all(&out_dir);
2337 create_dir_all(&out_dir).unwrap();
2339 let proc_res = self.document(&out_dir);
2340 if !proc_res.status.success() {
2341 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2344 if self.props.check_test_line_numbers_match {
2345 self.check_rustdoc_test_option(proc_res);
2347 let root = self.config.find_rust_src_root().unwrap();
2348 let res = self.cmd2procres(
2349 Command::new(&self.config.docck_python)
2350 .arg(root.join("src/etc/htmldocck.py"))
2352 .arg(&self.testpaths.file),
2354 if !res.status.success() {
2355 self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| {
2356 this.compare_to_default_rustdoc(&out_dir)
2362 fn compare_to_default_rustdoc(&mut self, out_dir: &Path) {
2363 println!("info: generating a diff against nightly rustdoc");
2366 self.safe_revision().map_or("nightly".into(), |path| path.to_owned() + "-nightly");
2367 let compare_dir = output_base_dir(self.config, self.testpaths, Some(&suffix));
2368 // Don't give an error if the directory didn't already exist
2369 let _ = fs::remove_dir_all(&compare_dir);
2370 create_dir_all(&compare_dir).unwrap();
2372 // We need to create a new struct for the lifetimes on `config` to work.
2373 let new_rustdoc = TestCx {
2375 // FIXME: use beta or a user-specified rustdoc instead of
2376 // hardcoding the default toolchain
2377 rustdoc_path: Some("rustdoc".into()),
2378 // Needed for building auxiliary docs below
2379 rustc_path: "rustc".into(),
2380 ..self.config.clone()
2385 let output_file = TargetLocation::ThisDirectory(new_rustdoc.aux_output_dir_name());
2386 let mut rustc = new_rustdoc.make_compile_args(
2387 &new_rustdoc.testpaths.file,
2392 rustc.arg("-L").arg(&new_rustdoc.aux_output_dir_name());
2393 new_rustdoc.build_all_auxiliary(&mut rustc);
2395 let proc_res = new_rustdoc.document(&compare_dir);
2396 if !proc_res.status.success() {
2397 eprintln!("failed to run nightly rustdoc");
2404 "--indent-spaces", "2",
2406 "--show-warnings", "no",
2411 let tidy_dir = |dir| {
2412 let tidy = |file: &_| {
2413 let tidy_proc = Command::new("tidy").args(&tidy_args).arg(file).spawn();
2416 proc.wait().unwrap();
2420 eprintln!("failed to run tidy - is it installed? - {}", err);
2425 for entry in walkdir::WalkDir::new(dir) {
2426 let entry = entry.expect("failed to read file");
2427 if entry.file_type().is_file()
2428 && entry.path().extension().and_then(|p| p.to_str()) == Some("html".into())
2430 if !tidy(entry.path()) {
2437 tidy_dir(&compare_dir);
2440 let output = Command::new("git").args(&["config", "--get", "core.pager"]).output().ok();
2441 output.and_then(|out| {
2442 if out.status.success() {
2443 Some(String::from_utf8(out.stdout).expect("invalid UTF8 in git pager"))
2449 let mut diff = Command::new("diff");
2450 diff.args(&["-u", "-r"]).args(&[&compare_dir, out_dir]);
2452 let output = if let Some(pager) = pager {
2453 let diff_pid = diff.stdout(Stdio::piped()).spawn().expect("failed to run `diff`");
2454 let pager = pager.trim();
2455 if self.config.verbose {
2456 eprintln!("using pager {}", pager);
2458 let output = Command::new(pager)
2459 // disable paging; we want this to be non-interactive
2461 .stdin(diff_pid.stdout.unwrap())
2462 // Capture output and print it explicitly so it will in turn be
2463 // captured by libtest.
2466 assert!(output.status.success());
2469 eprintln!("warning: no pager configured, falling back to `diff --color`");
2471 "help: try configuring a git pager (e.g. `delta`) with `git config --global core.pager delta`"
2473 let output = diff.arg("--color").output().unwrap();
2474 assert!(output.status.success() || output.status.code() == Some(1));
2477 println!("{}", String::from_utf8_lossy(&output.stdout));
2478 eprintln!("{}", String::from_utf8_lossy(&output.stderr));
2481 fn run_rustdoc_json_test(&self) {
2482 //FIXME: Add bless option.
2484 assert!(self.revision.is_none(), "revisions not relevant here");
2486 let out_dir = self.output_base_dir();
2487 let _ = fs::remove_dir_all(&out_dir);
2488 create_dir_all(&out_dir).unwrap();
2490 let proc_res = self.document(&out_dir);
2491 if !proc_res.status.success() {
2492 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2495 let root = self.config.find_rust_src_root().unwrap();
2496 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2497 json_out.set_extension("json");
2498 let res = self.cmd2procres(
2499 Command::new(&self.config.docck_python)
2500 .arg(root.join("src/test/rustdoc-json/check_missing_items.py"))
2504 if !res.status.success() {
2505 self.fatal_proc_rec("check_missing_items failed!", &res);
2508 let mut expected = self.testpaths.file.clone();
2509 expected.set_extension("expected");
2510 let res = self.cmd2procres(
2511 Command::new(&self.config.docck_python)
2512 .arg(root.join("src/test/rustdoc-json/compare.py"))
2515 .arg(&expected.parent().unwrap()),
2518 if !res.status.success() {
2519 self.fatal_proc_rec("compare failed!", &res);
2523 fn get_lines<P: AsRef<Path>>(
2526 mut other_files: Option<&mut Vec<String>>,
2528 let content = fs::read_to_string(&path).unwrap();
2529 let mut ignore = false;
2533 .filter_map(|(line_nb, line)| {
2534 if (line.trim_start().starts_with("pub mod ")
2535 || line.trim_start().starts_with("mod "))
2536 && line.ends_with(';')
2538 if let Some(ref mut other_files) = other_files {
2539 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2543 let sline = line.split("///").last().unwrap_or("");
2544 let line = sline.trim_start();
2545 if line.starts_with("```") {
2561 fn check_rustdoc_test_option(&self, res: ProcRes) {
2562 let mut other_files = Vec::new();
2563 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2564 let cwd = env::current_dir().unwrap();
2569 .unwrap_or(&self.testpaths.file)
2572 .replace('\\', "/"),
2573 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2575 for other_file in other_files {
2576 let mut path = self.testpaths.file.clone();
2577 path.set_file_name(&format!("{}.rs", other_file));
2579 path.strip_prefix(&cwd).unwrap_or(&path).to_str().unwrap().replace('\\', "/"),
2580 self.get_lines(&path, None),
2585 for _ in res.stdout.split('\n').filter(|s| s.starts_with("test ")).inspect(|s| {
2586 let tmp: Vec<&str> = s.split(" - ").collect();
2588 let path = tmp[0].rsplit("test ").next().unwrap();
2589 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2591 let mut iter = tmp[1].split("(line ");
2601 if let Ok(pos) = v.binary_search(&line) {
2604 self.fatal_proc_rec(
2605 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2613 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2615 for (entry, v) in &files {
2617 self.fatal_proc_rec(
2619 "Not found test at line{} \"{}\":{:?}",
2620 if v.len() > 1 { "s" } else { "" },
2631 fn run_codegen_units_test(&self) {
2632 assert!(self.revision.is_none(), "revisions not relevant here");
2634 let proc_res = self.compile_test(WillExecute::No, EmitMetadata::No);
2636 if !proc_res.status.success() {
2637 self.fatal_proc_rec("compilation failed!", &proc_res);
2640 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
2642 const PREFIX: &str = "MONO_ITEM ";
2643 const CGU_MARKER: &str = "@@";
2645 let actual: Vec<MonoItem> = proc_res
2648 .filter(|line| line.starts_with(PREFIX))
2649 .map(|line| str_to_mono_item(line, true))
2652 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2654 .map(|e| str_to_mono_item(&e.msg[..], false))
2657 let mut missing = Vec::new();
2658 let mut wrong_cgus = Vec::new();
2660 for expected_item in &expected {
2661 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2663 if let Some(actual_item) = actual_item_with_same_name {
2664 if !expected_item.codegen_units.is_empty() &&
2665 // Also check for codegen units
2666 expected_item.codegen_units != actual_item.codegen_units
2668 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2671 missing.push(expected_item.string.clone());
2675 let unexpected: Vec<_> = actual
2677 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2678 .map(|acgu| acgu.string.clone())
2681 if !missing.is_empty() {
2684 println!("\nThese items should have been contained but were not:\n");
2686 for item in &missing {
2687 println!("{}", item);
2693 if !unexpected.is_empty() {
2695 let mut sorted = unexpected.clone();
2700 println!("\nThese items were contained but should not have been:\n");
2702 for item in sorted {
2703 println!("{}", item);
2709 if !wrong_cgus.is_empty() {
2710 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2711 println!("\nThe following items were assigned to wrong codegen units:\n");
2713 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2714 println!("{}", expected_item.name);
2715 println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units));
2716 println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units));
2721 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2725 #[derive(Clone, Eq, PartialEq)]
2728 codegen_units: HashSet<String>,
2732 // [MONO_ITEM] name [@@ (cgu)+]
2733 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2734 let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() };
2736 let full_string = format!("{}{}", PREFIX, s);
2738 let parts: Vec<&str> =
2739 s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect();
2741 let name = parts[0].trim();
2743 let cgus = if parts.len() > 1 {
2744 let cgus_str = parts[1];
2749 .filter(|s| !s.is_empty())
2751 if cgu_has_crate_disambiguator {
2752 remove_crate_disambiguators_from_set_of_cgu_names(s)
2762 MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string }
2765 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2766 let mut cgus: Vec<_> = cgus.iter().collect();
2769 let mut string = String::new();
2771 string.push_str(&cgu[..]);
2772 string.push_str(" ");
2778 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2779 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2780 // remove all crate-disambiguators.
2781 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2783 static ref RE: Regex =
2784 Regex::new(r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?")
2789 RE.captures(cgu).unwrap_or_else(|| panic!("invalid cgu name encountered: {}", cgu));
2791 let mut new_name = cgu.to_owned();
2793 if let Some(d2) = captures.name("d2") {
2794 new_name.replace_range(d2.start()..d2.end(), "");
2797 let d1 = captures.name("d1").unwrap();
2798 new_name.replace_range(d1.start()..d1.end(), "");
2803 // The name of merged CGUs is constructed as the names of the original
2804 // CGUs joined with "--". This function splits such composite CGU names
2805 // and handles each component individually.
2806 fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String {
2808 .map(|cgu| remove_crate_disambiguator_from_cgu(cgu))
2809 .collect::<Vec<_>>()
2814 fn init_incremental_test(&self) {
2815 // (See `run_incremental_test` for an overview of how incremental tests work.)
2817 // Before any of the revisions have executed, create the
2818 // incremental workproduct directory. Delete any old
2819 // incremental work products that may be there from prior
2821 let incremental_dir = self.incremental_dir();
2822 if incremental_dir.exists() {
2823 // Canonicalizing the path will convert it to the //?/ format
2824 // on Windows, which enables paths longer than 260 character
2825 let canonicalized = incremental_dir.canonicalize().unwrap();
2826 fs::remove_dir_all(canonicalized).unwrap();
2828 fs::create_dir_all(&incremental_dir).unwrap();
2830 if self.config.verbose {
2831 print!("init_incremental_test: incremental_dir={}", incremental_dir.display());
2835 fn run_incremental_test(&self) {
2836 // Basic plan for a test incremental/foo/bar.rs:
2837 // - load list of revisions rpass1, cfail2, rpass3
2838 // - each should begin with `rpass`, `cfail`, or `rfail`
2839 // - if `rpass`, expect compile and execution to succeed
2840 // - if `cfail`, expect compilation to fail
2841 // - if `rfail`, expect execution to fail
2842 // - create a directory build/foo/bar.incremental
2843 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1
2844 // - because name of revision starts with "rpass", expect success
2845 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2
2846 // - because name of revision starts with "cfail", expect an error
2847 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2848 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3
2849 // - because name of revision starts with "rpass", expect success
2850 // - execute build/foo/bar.exe and save output
2852 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2853 // to #[rustc_dirty] and clean tests I guess
2855 let revision = self.revision.expect("incremental tests require a list of revisions");
2857 // Incremental workproduct directory should have already been created.
2858 let incremental_dir = self.incremental_dir();
2859 assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir");
2861 // Add an extra flag pointing at the incremental directory.
2862 let mut revision_props = self.props.clone();
2863 revision_props.incremental_dir = Some(incremental_dir);
2865 let revision_cx = TestCx {
2866 config: self.config,
2867 props: &revision_props,
2868 testpaths: self.testpaths,
2869 revision: self.revision,
2872 if self.config.verbose {
2873 print!("revision={:?} revision_props={:#?}", revision, revision_props);
2876 if revision.starts_with("rpass") {
2877 if revision_cx.props.should_ice {
2878 revision_cx.fatal("can only use should-ice in cfail tests");
2880 revision_cx.run_rpass_test();
2881 } else if revision.starts_with("rfail") {
2882 if revision_cx.props.should_ice {
2883 revision_cx.fatal("can only use should-ice in cfail tests");
2885 revision_cx.run_rfail_test();
2886 } else if revision.starts_with("cfail") {
2887 revision_cx.run_cfail_test();
2889 revision_cx.fatal("revision name must begin with rpass, rfail, or cfail");
2893 /// Directory where incremental work products are stored.
2894 fn incremental_dir(&self) -> PathBuf {
2895 self.output_base_name().with_extension("inc")
2898 fn run_rmake_test(&self) {
2899 let cwd = env::current_dir().unwrap();
2900 let src_root = self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
2901 let src_root = cwd.join(&src_root);
2903 let tmpdir = cwd.join(self.output_base_name());
2904 if tmpdir.exists() {
2905 self.aggressive_rm_rf(&tmpdir).unwrap();
2907 create_dir_all(&tmpdir).unwrap();
2909 let host = &self.config.host;
2910 let make = if host.contains("dragonfly")
2911 || host.contains("freebsd")
2912 || host.contains("netbsd")
2913 || host.contains("openbsd")
2920 let mut cmd = Command::new(make);
2921 cmd.current_dir(&self.testpaths.file)
2922 .stdout(Stdio::piped())
2923 .stderr(Stdio::piped())
2924 .env("TARGET", &self.config.target)
2925 .env("PYTHON", &self.config.docck_python)
2927 .env("RUST_BUILD_STAGE", &self.config.stage_id)
2928 .env("RUSTC", cwd.join(&self.config.rustc_path))
2929 .env("TMPDIR", &tmpdir)
2930 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
2931 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
2932 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
2933 .env("LLVM_COMPONENTS", &self.config.llvm_components)
2934 // We for sure don't want these tests to run in parallel, so make
2935 // sure they don't have access to these vars if we run via `make`
2937 .env_remove("MAKEFLAGS")
2938 .env_remove("MFLAGS")
2939 .env_remove("CARGO_MAKEFLAGS");
2941 if let Some(ref rustdoc) = self.config.rustdoc_path {
2942 cmd.env("RUSTDOC", cwd.join(rustdoc));
2945 if let Some(ref rust_demangler) = self.config.rust_demangler_path {
2946 cmd.env("RUST_DEMANGLER", cwd.join(rust_demangler));
2949 if let Some(ref node) = self.config.nodejs {
2950 cmd.env("NODE", node);
2953 if let Some(ref linker) = self.config.linker {
2954 cmd.env("RUSTC_LINKER", linker);
2957 if let Some(ref clang) = self.config.run_clang_based_tests_with {
2958 cmd.env("CLANG", clang);
2961 if let Some(ref filecheck) = self.config.llvm_filecheck {
2962 cmd.env("LLVM_FILECHECK", filecheck);
2965 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
2966 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
2969 // We don't want RUSTFLAGS set from the outside to interfere with
2970 // compiler flags set in the test cases:
2971 cmd.env_remove("RUSTFLAGS");
2973 // Use dynamic musl for tests because static doesn't allow creating dylibs
2974 if self.config.host.contains("musl") {
2975 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1");
2978 if self.config.bless {
2979 cmd.env("RUSTC_BLESS_TEST", "--bless");
2980 // Assume this option is active if the environment variable is "defined", with _any_ value.
2981 // As an example, a `Makefile` can use this option by:
2983 // ifdef RUSTC_BLESS_TEST
2984 // cp "$(TMPDIR)"/actual_something.ext expected_something.ext
2986 // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext
2990 if self.config.target.contains("msvc") && self.config.cc != "" {
2991 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
2992 // and that `lib.exe` lives next to it.
2993 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
2995 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
2996 // a path and instead passes `C:\msys64\foo`, so convert all
2997 // `/`-arguments to MSVC here to `-` arguments.
3002 .map(|s| s.replace("/", "-"))
3003 .collect::<Vec<_>>()
3006 cmd.env("IS_MSVC", "1")
3007 .env("IS_WINDOWS", "1")
3008 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
3009 .env("CC", format!("'{}' {}", self.config.cc, cflags))
3010 .env("CXX", format!("'{}'", &self.config.cxx));
3012 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
3013 .env("CXX", format!("{} {}", self.config.cxx, self.config.cflags))
3014 .env("AR", &self.config.ar);
3016 if self.config.target.contains("windows") {
3017 cmd.env("IS_WINDOWS", "1");
3021 let output = cmd.spawn().and_then(read2_abbreviated).expect("failed to spawn `make`");
3022 if !output.status.success() {
3024 status: output.status,
3025 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
3026 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
3027 cmdline: format!("{:?}", cmd),
3029 self.fatal_proc_rec("make failed", &res);
3033 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
3034 for e in path.read_dir()? {
3036 let path = entry.path();
3037 if entry.file_type()?.is_dir() {
3038 self.aggressive_rm_rf(&path)?;
3040 // Remove readonly files as well on windows (by default we can't)
3041 fs::remove_file(&path).or_else(|e| {
3042 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
3043 let mut meta = entry.metadata()?.permissions();
3044 meta.set_readonly(false);
3045 fs::set_permissions(&path, meta)?;
3046 fs::remove_file(&path)
3053 fs::remove_dir(path)
3056 fn run_js_doc_test(&self) {
3057 if let Some(nodejs) = &self.config.nodejs {
3058 let out_dir = self.output_base_dir();
3060 self.document(&out_dir);
3062 let root = self.config.find_rust_src_root().unwrap();
3064 self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem");
3065 let res = self.cmd2procres(
3066 Command::new(&nodejs)
3067 .arg(root.join("src/tools/rustdoc-js/tester.js"))
3068 .arg("--doc-folder")
3070 .arg("--crate-name")
3071 .arg(file_stem.replace("-", "_"))
3073 .arg(self.testpaths.file.with_extension("js")),
3075 if !res.status.success() {
3076 self.fatal_proc_rec("rustdoc-js test failed!", &res);
3079 self.fatal("no nodeJS");
3083 fn load_compare_outputs(
3086 output_kind: TestOutput,
3087 explicit_format: bool,
3089 let (stderr_kind, stdout_kind) = match output_kind {
3090 TestOutput::Compile => (UI_STDERR, UI_STDOUT),
3091 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT),
3094 let expected_stderr = self.load_expected_output(stderr_kind);
3095 let expected_stdout = self.load_expected_output(stdout_kind);
3097 let normalized_stdout = match output_kind {
3098 TestOutput::Run if self.config.remote_test_client.is_some() => {
3099 // When tests are run using the remote-test-client, the string
3100 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
3101 // is printed to stdout by the client and then captured in the ProcRes,
3102 // so it needs to be removed when comparing the run-pass test execution output
3104 static ref REMOTE_TEST_RE: Regex = Regex::new(
3105 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-]+)+\", waiting for result\n"
3111 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3116 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3119 let stderr = if explicit_format {
3120 proc_res.stderr.clone()
3122 json::extract_rendered(&proc_res.stderr)
3125 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3128 TestOutput::Compile => {
3129 if !self.props.dont_check_compiler_stdout {
3130 errors += self.compare_output("stdout", &normalized_stdout, &expected_stdout);
3132 if !self.props.dont_check_compiler_stderr {
3133 errors += self.compare_output("stderr", &normalized_stderr, &expected_stderr);
3136 TestOutput::Run => {
3137 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3138 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3144 fn run_ui_test(&self) {
3145 if let Some(FailMode::Build) = self.props.fail_mode {
3146 // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck).
3147 let pm = Some(PassMode::Check);
3148 let proc_res = self.compile_test_general(WillExecute::No, EmitMetadata::Yes, pm);
3149 self.check_if_test_should_compile(&proc_res, pm);
3152 let pm = self.pass_mode();
3153 let should_run = self.should_run(pm);
3154 let emit_metadata = self.should_emit_metadata(pm);
3155 let proc_res = self.compile_test(should_run, emit_metadata);
3156 self.check_if_test_should_compile(&proc_res, pm);
3158 // if the user specified a format in the ui test
3159 // print the output to the stderr file, otherwise extract
3160 // the rendered error messages from json and print them
3161 let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format"));
3163 let expected_fixed = self.load_expected_output(UI_FIXED);
3165 let modes_to_prune = vec![CompareMode::Nll];
3166 self.prune_duplicate_outputs(&modes_to_prune);
3168 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3169 let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr);
3171 if self.config.compare_mode.is_some() {
3172 // don't test rustfix with nll right now
3173 } else if self.config.rustfix_coverage {
3174 // Find out which tests have `MachineApplicable` suggestions but are missing
3175 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3177 // This will return an empty `Vec` in case the executed test file has a
3178 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3179 let suggestions = get_suggestions_from_json(
3182 Filter::MachineApplicableOnly,
3184 .unwrap_or_default();
3185 if !suggestions.is_empty()
3186 && !self.props.run_rustfix
3187 && !self.props.rustfix_only_machine_applicable
3189 let mut coverage_file_path = self.config.build_base.clone();
3190 coverage_file_path.push("rustfix_missing_coverage.txt");
3191 debug!("coverage_file_path: {}", coverage_file_path.display());
3193 let mut file = OpenOptions::new()
3196 .open(coverage_file_path.as_path())
3197 .expect("could not create or open file");
3199 if writeln!(file, "{}", self.testpaths.file.display()).is_err() {
3200 panic!("couldn't write to {}", coverage_file_path.display());
3203 } else if self.props.run_rustfix {
3204 // Apply suggestions from rustc to the code itself
3205 let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap();
3206 let suggestions = get_suggestions_from_json(
3209 if self.props.rustfix_only_machine_applicable {
3210 Filter::MachineApplicableOnly
3216 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|_| {
3217 panic!("failed to apply suggestions for {:?} with rustfix", self.testpaths.file)
3220 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3221 } else if !expected_fixed.is_empty() {
3223 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3229 println!("To update references, rerun the tests and pass the `--bless` flag");
3230 let relative_path_to_file =
3231 self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap());
3233 "To only update this specific test, also pass `--test-args {}`",
3234 relative_path_to_file.display(),
3236 self.fatal_proc_rec(
3237 &format!("{} errors occurred comparing output.", errors),
3242 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3244 if let WillExecute::Yes = should_run {
3245 let proc_res = self.exec_compiled_test();
3246 let run_output_errors = if self.props.check_run_results {
3247 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3251 if run_output_errors > 0 {
3252 self.fatal_proc_rec(
3253 &format!("{} errors occurred comparing run output.", run_output_errors),
3257 if self.should_run_successfully(pm) {
3258 if !proc_res.status.success() {
3259 self.fatal_proc_rec("test run failed!", &proc_res);
3262 if proc_res.status.success() {
3263 self.fatal_proc_rec("test run succeeded!", &proc_res);
3266 if !self.props.error_patterns.is_empty() {
3267 // "// error-pattern" comments
3268 self.check_error_patterns(&proc_res.stderr, &proc_res, pm);
3273 "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3274 proc_res.status={:?} props.error_patterns={:?}",
3276 self.config.compare_mode,
3279 self.props.error_patterns
3281 if !explicit && self.config.compare_mode.is_none() {
3282 let check_patterns =
3283 should_run == WillExecute::No && !self.props.error_patterns.is_empty();
3285 let check_annotations = !check_patterns || !expected_errors.is_empty();
3288 // "// error-pattern" comments
3289 self.check_error_patterns(&proc_res.stderr, &proc_res, pm);
3292 if check_annotations {
3293 // "//~ERROR comments"
3294 self.check_expected_errors(expected_errors, &proc_res);
3298 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3299 // And finally, compile the fixed code and make sure it both
3300 // succeeds and has no diagnostics.
3301 let mut rustc = self.make_compile_args(
3302 &self.testpaths.file.with_extension(UI_FIXED),
3303 TargetLocation::ThisFile(self.make_exe_name()),
3307 rustc.arg("-L").arg(&self.aux_output_dir_name());
3308 let res = self.compose_and_run_compiler(rustc, None);
3309 if !res.status.success() {
3310 self.fatal_proc_rec("failed to compile fixed code", &res);
3312 if !res.stderr.is_empty() && !self.props.rustfix_only_machine_applicable {
3313 if !json::rustfix_diagnostics_only(&res.stderr).is_empty() {
3314 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3320 fn run_mir_opt_test(&self) {
3321 let pm = self.pass_mode();
3322 let should_run = self.should_run(pm);
3323 let emit_metadata = self.should_emit_metadata(pm);
3324 let proc_res = self.compile_test(should_run, emit_metadata);
3326 if !proc_res.status.success() {
3327 self.fatal_proc_rec("compilation failed!", &proc_res);
3330 self.check_mir_dump();
3332 if let WillExecute::Yes = should_run {
3333 let proc_res = self.exec_compiled_test();
3335 if !proc_res.status.success() {
3336 self.fatal_proc_rec("test run failed!", &proc_res);
3341 fn check_mir_dump(&self) {
3342 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3344 let test_dir = self.testpaths.file.parent().unwrap();
3346 self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace("-", "_");
3348 let mut bit_width = String::new();
3349 if test_file_contents.lines().any(|l| l == "// EMIT_MIR_FOR_EACH_BIT_WIDTH") {
3350 bit_width = format!(".{}", get_pointer_width(&self.config.target));
3353 if self.config.bless {
3355 glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, bit_width)).unwrap()
3357 std::fs::remove_file(e.unwrap()).unwrap();
3360 glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, bit_width)).unwrap()
3362 std::fs::remove_file(e.unwrap()).unwrap();
3366 for l in test_file_contents.lines() {
3367 if l.starts_with("// EMIT_MIR ") {
3368 let test_name = l.trim_start_matches("// EMIT_MIR ").trim();
3369 let mut test_names = test_name.split(' ');
3370 // sometimes we specify two files so that we get a diff between the two files
3371 let test_name = test_names.next().unwrap();
3372 let mut expected_file;
3376 if test_name.ends_with(".diff") {
3377 let trimmed = test_name.trim_end_matches(".diff");
3378 let test_against = format!("{}.after.mir", trimmed);
3379 from_file = format!("{}.before.mir", trimmed);
3380 expected_file = format!("{}{}.diff", trimmed, bit_width);
3382 test_names.next().is_none(),
3383 "two mir pass names specified for MIR diff"
3385 to_file = Some(test_against);
3386 } else if let Some(first_pass) = test_names.next() {
3387 let second_pass = test_names.next().unwrap();
3389 test_names.next().is_none(),
3390 "three mir pass names specified for MIR diff"
3393 format!("{}{}.{}-{}.diff", test_name, bit_width, first_pass, second_pass);
3394 let second_file = format!("{}.{}.mir", test_name, second_pass);
3395 from_file = format!("{}.{}.mir", test_name, first_pass);
3396 to_file = Some(second_file);
3398 let ext_re = Regex::new(r#"(\.(mir|dot|html))$"#).unwrap();
3400 .captures_iter(test_name)
3402 .expect("test_name has an invalid extension");
3403 let extension = cap.get(1).unwrap().as_str();
3404 expected_file = format!(
3406 test_name.trim_end_matches(extension),
3410 from_file = test_name.to_string();
3412 test_names.next().is_none(),
3413 "two mir pass names specified for MIR dump"
3417 if !expected_file.starts_with(&test_crate) {
3418 expected_file = format!("{}.{}", test_crate, expected_file);
3420 let expected_file = test_dir.join(expected_file);
3422 let dumped_string = if let Some(after) = to_file {
3423 self.diff_mir_files(from_file.into(), after.into())
3425 let mut output_file = PathBuf::new();
3426 output_file.push(self.get_mir_dump_dir());
3427 output_file.push(&from_file);
3429 "comparing the contents of: {} with {}",
3430 output_file.display(),
3431 expected_file.display()
3433 if !output_file.exists() {
3435 "Output file `{}` from test does not exist, available files are in `{}`",
3436 output_file.display(),
3437 output_file.parent().unwrap().display()
3440 self.check_mir_test_timestamp(&from_file, &output_file);
3441 let dumped_string = fs::read_to_string(&output_file).unwrap();
3442 self.normalize_output(&dumped_string, &[])
3445 if self.config.bless {
3446 let _ = std::fs::remove_file(&expected_file);
3447 std::fs::write(expected_file, dumped_string.as_bytes()).unwrap();
3449 if !expected_file.exists() {
3451 "Output file `{}` from test does not exist",
3452 expected_file.display()
3455 let expected_string = fs::read_to_string(&expected_file).unwrap();
3456 if dumped_string != expected_string {
3457 print!("{}", write_diff(&expected_string, &dumped_string, 3));
3459 "Actual MIR output differs from expected MIR output {}",
3460 expected_file.display()
3468 fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String {
3469 let to_full_path = |path: PathBuf| {
3470 let full = self.get_mir_dump_dir().join(&path);
3473 "the mir dump file for {} does not exist (requested in {})",
3475 self.testpaths.file.display(),
3480 let before = to_full_path(before);
3481 let after = to_full_path(after);
3482 debug!("comparing the contents of: {} with {}", before.display(), after.display());
3483 let before = fs::read_to_string(before).unwrap();
3484 let after = fs::read_to_string(after).unwrap();
3485 let before = self.normalize_output(&before, &[]);
3486 let after = self.normalize_output(&after, &[]);
3487 let mut dumped_string = String::new();
3488 for result in diff::lines(&before, &after) {
3489 use std::fmt::Write;
3491 diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(),
3492 diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(),
3493 diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(),
3499 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3500 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3501 let source_file = &self.testpaths.file;
3502 let output_time = t(output_file);
3503 let source_time = t(source_file);
3504 if source_time > output_time {
3505 debug!("source file time: {:?} output file time: {:?}", source_time, output_time);
3507 "test source file `{}` is newer than potentially stale output file `{}`.",
3508 source_file.display(),
3514 fn get_mir_dump_dir(&self) -> PathBuf {
3515 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3516 debug!("input_file: {:?}", self.testpaths.file);
3517 mir_dump_dir.push(&self.testpaths.relative_dir);
3518 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3522 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3523 let cflags = self.props.compile_flags.join(" ");
3524 let json = cflags.contains("--error-format json")
3525 || cflags.contains("--error-format pretty-json")
3526 || cflags.contains("--error-format=json")
3527 || cflags.contains("--error-format=pretty-json")
3528 || cflags.contains("--output-format json")
3529 || cflags.contains("--output-format=json");
3531 let mut normalized = output.to_string();
3533 let mut normalize_path = |from: &Path, to: &str| {
3534 let mut from = from.display().to_string();
3536 from = from.replace("\\", "\\\\");
3538 normalized = normalized.replace(&from, to);
3541 let parent_dir = self.testpaths.file.parent().unwrap();
3542 normalize_path(parent_dir, "$DIR");
3544 // Paths into the libstd/libcore
3555 normalize_path(&src_dir, "$SRC_DIR");
3557 // Paths into the build directory
3558 let test_build_dir = &self.config.build_base;
3559 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3561 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3562 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3563 // eg. /home/user/rust/build
3564 normalize_path(parent_build_dir, "$BUILD_DIR");
3566 // Paths into lib directory.
3567 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3570 // escaped newlines in json strings should be readable
3571 // in the stderr files. There's no point int being correct,
3572 // since only humans process the stderr files.
3573 // Thus we just turn escaped newlines back into newlines.
3574 normalized = normalized.replace("\\n", "\n");
3577 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3578 // with placeholders as we do not want tests needing updated when compiler source code
3580 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3581 normalized = Regex::new("SRC_DIR(.+):\\d+:\\d+(: \\d+:\\d+)?")
3583 .replace_all(&normalized, "SRC_DIR$1:LL:COL")
3586 normalized = Self::normalize_platform_differences(&normalized);
3587 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3589 // Remove test annotations like `//~ ERROR text` from the output,
3590 // since they duplicate actual errors and make the output hard to read.
3592 Regex::new("\\s*//(\\[.*\\])?~.*").unwrap().replace_all(&normalized, "").into_owned();
3594 for rule in custom_rules {
3595 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3596 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3601 /// Normalize output differences across platforms. Generally changes Windows output to be more
3604 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3606 fn normalize_platform_differences(output: &str) -> String {
3608 /// Used to find Windows paths.
3610 /// It's not possible to detect paths in the error messages generally, but this is a
3611 /// decent enough heuristic.
3612 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3614 # Match paths that don't include spaces.
3615 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3617 # If the path starts with a well-known root, then allow spaces.
3618 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3623 let output = output.replace(r"\\", r"\");
3626 .replace_all(&output, |caps: &Captures<'_>| {
3627 println!("{}", &caps[0]);
3628 caps[0].replace(r"\", "/")
3630 .replace("\r\n", "\n")
3633 fn expected_output_path(&self, kind: &str) -> PathBuf {
3635 expected_output_path(&self.testpaths, self.revision, &self.config.compare_mode, kind);
3638 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3639 path = expected_output_path(
3642 &Some(CompareMode::Nll),
3649 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3655 fn load_expected_output(&self, kind: &str) -> String {
3656 let path = self.expected_output_path(kind);
3658 match self.load_expected_output_from_path(&path) {
3660 Err(x) => self.fatal(&x),
3667 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3668 fs::read_to_string(path).map_err(|err| {
3669 format!("failed to load expected output from `{}`: {}", path.display(), err)
3673 fn delete_file(&self, file: &PathBuf) {
3675 // Deleting a nonexistant file would error.
3678 if let Err(e) = fs::remove_file(file) {
3679 self.fatal(&format!("failed to delete `{}`: {}", file.display(), e,));
3683 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3684 if actual == expected {
3688 if !self.config.bless {
3689 if expected.is_empty() {
3690 println!("normalized {}:\n{}\n", kind, actual);
3692 println!("diff of {}:\n", kind);
3693 print!("{}", write_diff(expected, actual, 3));
3697 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3698 let output_file = self
3700 .with_extra_extension(self.revision.unwrap_or(""))
3701 .with_extra_extension(mode)
3702 .with_extra_extension(kind);
3704 let mut files = vec![output_file];
3705 if self.config.bless {
3706 files.push(expected_output_path(
3709 &self.config.compare_mode,
3714 for output_file in &files {
3715 if actual.is_empty() {
3716 self.delete_file(output_file);
3717 } else if let Err(err) = fs::write(&output_file, &actual) {
3718 self.fatal(&format!(
3719 "failed to write {} to `{}`: {}",
3721 output_file.display(),
3727 println!("\nThe actual {0} differed from the expected {0}.", kind);
3728 for output_file in files {
3729 println!("Actual {} saved to {}", kind, output_file.display());
3731 if self.config.bless { 0 } else { 1 }
3734 fn prune_duplicate_output(&self, mode: CompareMode, kind: &str, canon_content: &str) {
3735 let examined_path = expected_output_path(&self.testpaths, self.revision, &Some(mode), kind);
3737 let examined_content =
3738 self.load_expected_output_from_path(&examined_path).unwrap_or_else(|_| String::new());
3740 if canon_content == examined_content {
3741 self.delete_file(&examined_path);
3745 fn prune_duplicate_outputs(&self, modes: &[CompareMode]) {
3746 if self.config.bless {
3747 for kind in UI_EXTENSIONS {
3748 let canon_comparison_path =
3749 expected_output_path(&self.testpaths, self.revision, &None, kind);
3751 if let Ok(canon) = self.load_expected_output_from_path(&canon_comparison_path) {
3753 self.prune_duplicate_output(mode.clone(), kind, &canon);
3760 fn create_stamp(&self) {
3761 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3762 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3771 pub struct ProcRes {
3779 pub fn fatal(&self, err: Option<&str>, on_failure: impl FnOnce()) -> ! {
3780 if let Some(e) = err {
3781 println!("\nerror: {}", e);
3788 ------------------------------------------\n\
3790 ------------------------------------------\n\
3792 ------------------------------------------\n\
3794 ------------------------------------------\n\
3798 json::extract_rendered(&self.stdout),
3799 json::extract_rendered(&self.stderr),
3802 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3803 // compiletest, which is unnecessary noise.
3804 std::panic::resume_unwind(Box::new(()));
3809 enum TargetLocation {
3811 ThisDirectory(PathBuf),
3819 fn read2_abbreviated(mut child: Child) -> io::Result<Output> {
3820 use crate::read2::read2;
3821 use std::mem::replace;
3823 const HEAD_LEN: usize = 160 * 1024;
3824 const TAIL_LEN: usize = 256 * 1024;
3828 Abbreviated { head: Vec<u8>, skipped: usize, tail: Box<[u8]> },
3832 fn extend(&mut self, data: &[u8]) {
3833 let new_self = match *self {
3834 ProcOutput::Full(ref mut bytes) => {
3835 bytes.extend_from_slice(data);
3836 let new_len = bytes.len();
3837 if new_len <= HEAD_LEN + TAIL_LEN {
3840 let tail = bytes.split_off(new_len - TAIL_LEN).into_boxed_slice();
3841 let head = replace(bytes, Vec::new());
3842 let skipped = new_len - HEAD_LEN - TAIL_LEN;
3843 ProcOutput::Abbreviated { head, skipped, tail }
3845 ProcOutput::Abbreviated { ref mut skipped, ref mut tail, .. } => {
3846 *skipped += data.len();
3847 if data.len() <= TAIL_LEN {
3848 tail[..data.len()].copy_from_slice(data);
3849 tail.rotate_left(data.len());
3851 tail.copy_from_slice(&data[(data.len() - TAIL_LEN)..]);
3859 fn into_bytes(self) -> Vec<u8> {
3861 ProcOutput::Full(bytes) => bytes,
3862 ProcOutput::Abbreviated { mut head, skipped, tail } => {
3863 write!(&mut head, "\n\n<<<<<< SKIPPED {} BYTES >>>>>>\n\n", skipped).unwrap();
3864 head.extend_from_slice(&tail);
3871 let mut stdout = ProcOutput::Full(Vec::new());
3872 let mut stderr = ProcOutput::Full(Vec::new());
3874 drop(child.stdin.take());
3876 child.stdout.take().unwrap(),
3877 child.stderr.take().unwrap(),
3878 &mut |is_stdout, data, _| {
3879 if is_stdout { &mut stdout } else { &mut stderr }.extend(data);
3883 let status = child.wait()?;
3885 Ok(Output { status, stdout: stdout.into_bytes(), stderr: stderr.into_bytes() })