1 // ignore-tidy-filelength
3 use crate::common::{expected_output_path, UI_EXTENSIONS, UI_FIXED, UI_STDERR, UI_STDOUT};
4 use crate::common::{incremental_dir, 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::{Config, TestPaths};
9 use crate::common::{Pretty, RunPassValgrind};
10 use crate::common::{UI_RUN_STDERR, UI_RUN_STDOUT};
11 use crate::compute_diff::{write_diff, write_filtered_diff};
12 use crate::errors::{self, Error, ErrorKind};
13 use crate::header::TestProps;
15 use crate::read2::read2_abbreviated;
16 use crate::util::{logv, PathBufExt};
17 use crate::ColorConfig;
18 use regex::{Captures, Regex};
19 use rustfix::{apply_suggestions, get_suggestions_from_json, Filter};
21 use std::collections::hash_map::DefaultHasher;
22 use std::collections::{HashMap, HashSet};
24 use std::ffi::{OsStr, OsString};
25 use std::fs::{self, create_dir_all, File, OpenOptions};
26 use std::hash::{Hash, Hasher};
27 use std::io::prelude::*;
28 use std::io::{self, BufReader};
29 use std::path::{Path, PathBuf};
30 use std::process::{Child, Command, ExitStatus, Output, Stdio};
34 use lazy_static::lazy_static;
37 use crate::extract_gdb_version;
38 use crate::is_android_gdb_target;
41 use debugger::{check_debugger_output, DebuggerCommands};
47 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
49 use winapi::um::errhandlingapi::SetErrorMode;
50 use winapi::um::winbase::SEM_NOGPFAULTERRORBOX;
53 static ref LOCK: Mutex<()> = Mutex::new(());
55 // Error mode is a global variable, so lock it so only one thread will change it
56 let _lock = LOCK.lock().unwrap();
58 // Tell Windows to not show any UI on errors (such as terminating abnormally).
59 // This is important for running tests, since some of them use abnormal
60 // termination by design. This mode is inherited by all child processes.
62 let old_mode = SetErrorMode(SEM_NOGPFAULTERRORBOX); // read inherited flags
63 SetErrorMode(old_mode | SEM_NOGPFAULTERRORBOX);
65 SetErrorMode(old_mode);
71 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
75 /// The name of the environment variable that holds dynamic library locations.
76 pub fn dylib_env_var() -> &'static str {
79 } else if cfg!(target_os = "macos") {
81 } else if cfg!(target_os = "haiku") {
88 /// The platform-specific library name
89 pub fn get_lib_name(lib: &str, dylib: bool) -> String {
90 // In some casess (e.g. MUSL), we build a static
91 // library, rather than a dynamic library.
92 // In this case, the only path we can pass
93 // with '--extern-meta' is the '.lib' file
95 return format!("lib{}.rlib", lib);
99 format!("{}.dll", lib)
100 } else if cfg!(target_os = "macos") {
101 format!("lib{}.dylib", lib)
103 format!("lib{}.so", lib)
107 pub fn run(config: Config, testpaths: &TestPaths, revision: Option<&str>) {
108 match &*config.target {
109 "arm-linux-androideabi"
110 | "armv7-linux-androideabi"
111 | "thumbv7neon-linux-androideabi"
112 | "aarch64-linux-android" => {
113 if !config.adb_device_status {
114 panic!("android device not available");
119 // android has its own gdb handling
120 if config.debugger == Some(Debugger::Gdb) && config.gdb.is_none() {
121 panic!("gdb not available but debuginfo gdb debuginfo test requested");
127 // We're going to be dumping a lot of info. Start on a new line.
130 debug!("running {:?}", testpaths.file.display());
131 let mut props = TestProps::from_file(&testpaths.file, revision, &config);
132 if props.incremental {
133 props.incremental_dir = Some(incremental_dir(&config, testpaths));
136 let cx = TestCx { config: &config, props: &props, testpaths, revision };
137 create_dir_all(&cx.output_base_dir()).unwrap();
138 if props.incremental {
139 cx.init_incremental_test();
142 if config.mode == Incremental {
143 // Incremental tests are special because they cannot be run in
145 assert!(!props.revisions.is_empty(), "Incremental tests require revisions.");
146 for revision in &props.revisions {
147 let mut revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
148 revision_props.incremental_dir = props.incremental_dir.clone();
149 let rev_cx = TestCx {
151 props: &revision_props,
153 revision: Some(revision),
155 rev_cx.run_revision();
164 pub fn compute_stamp_hash(config: &Config) -> String {
165 let mut hash = DefaultHasher::new();
166 config.stage_id.hash(&mut hash);
167 config.run.hash(&mut hash);
169 match config.debugger {
170 Some(Debugger::Cdb) => {
171 config.cdb.hash(&mut hash);
174 Some(Debugger::Gdb) => {
175 config.gdb.hash(&mut hash);
176 env::var_os("PATH").hash(&mut hash);
177 env::var_os("PYTHONPATH").hash(&mut hash);
180 Some(Debugger::Lldb) => {
181 config.python.hash(&mut hash);
182 config.lldb_python_dir.hash(&mut hash);
183 env::var_os("PATH").hash(&mut hash);
184 env::var_os("PYTHONPATH").hash(&mut hash);
190 if let Ui = config.mode {
191 config.force_pass_mode.hash(&mut hash);
194 format!("{:x}", hash.finish())
197 #[derive(Copy, Clone)]
198 struct TestCx<'test> {
199 config: &'test Config,
200 props: &'test TestProps,
201 testpaths: &'test TestPaths,
202 revision: Option<&'test str>,
215 /// Will this test be executed? Should we use `make_exe_name`?
216 #[derive(Copy, Clone, PartialEq)]
223 /// Should `--emit metadata` be used?
224 #[derive(Copy, Clone)]
230 impl<'test> TestCx<'test> {
231 /// Code executed for each revision in turn (or, if there are no
232 /// revisions, exactly once, with revision == None).
233 fn run_revision(&self) {
234 if self.props.should_ice && self.config.mode != Incremental {
235 self.fatal("cannot use should-ice in a test that is not cfail");
237 match self.config.mode {
238 RunPassValgrind => self.run_valgrind_test(),
239 Pretty => self.run_pretty_test(),
240 DebugInfo => self.run_debuginfo_test(),
241 Codegen => self.run_codegen_test(),
242 Rustdoc => self.run_rustdoc_test(),
243 RustdocJson => self.run_rustdoc_json_test(),
244 CodegenUnits => self.run_codegen_units_test(),
245 Incremental => self.run_incremental_test(),
246 RunMake => self.run_rmake_test(),
247 Ui => self.run_ui_test(),
248 MirOpt => self.run_mir_opt_test(),
249 Assembly => self.run_assembly_test(),
250 JsDocTest => self.run_js_doc_test(),
254 fn pass_mode(&self) -> Option<PassMode> {
255 self.props.pass_mode(self.config)
258 fn should_run(&self, pm: Option<PassMode>) -> WillExecute {
259 let test_should_run = match self.config.mode {
260 Ui if pm == Some(PassMode::Run) || self.props.fail_mode == Some(FailMode::Run) => true,
261 MirOpt if pm == Some(PassMode::Run) => true,
262 Ui | MirOpt => false,
263 mode => panic!("unimplemented for mode {:?}", mode),
265 if test_should_run { self.run_if_enabled() } else { WillExecute::No }
268 fn run_if_enabled(&self) -> WillExecute {
269 if self.config.run_enabled() { WillExecute::Yes } else { WillExecute::Disabled }
272 fn should_run_successfully(&self, pm: Option<PassMode>) -> bool {
273 match self.config.mode {
274 Ui | MirOpt => pm == Some(PassMode::Run),
275 mode => panic!("unimplemented for mode {:?}", mode),
279 fn should_compile_successfully(&self, pm: Option<PassMode>) -> bool {
280 match self.config.mode {
282 Ui => pm.is_some() || self.props.fail_mode > Some(FailMode::Build),
285 self.revision.expect("incremental tests require a list of revisions");
286 if revision.starts_with("rpass") || revision.starts_with("rfail") {
288 } else if revision.starts_with("cfail") {
289 // FIXME: would be nice if incremental revs could start with "cpass"
292 panic!("revision name must begin with rpass, rfail, or cfail");
295 mode => panic!("unimplemented for mode {:?}", mode),
299 fn check_if_test_should_compile(&self, proc_res: &ProcRes, pm: Option<PassMode>) {
300 if self.should_compile_successfully(pm) {
301 if !proc_res.status.success() {
302 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
305 if proc_res.status.success() {
307 &format!("{} test compiled successfully!", self.config.mode)[..],
312 self.check_correct_failure_status(proc_res);
316 fn run_cfail_test(&self) {
317 let pm = self.pass_mode();
318 let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm));
319 self.check_if_test_should_compile(&proc_res, pm);
320 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
322 let output_to_check = self.get_output(&proc_res);
323 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
324 if !expected_errors.is_empty() {
325 if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty()
327 self.fatal("both error pattern and expected errors specified");
329 self.check_expected_errors(expected_errors, &proc_res);
331 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
333 if self.props.should_ice {
334 match proc_res.status.code() {
336 _ => self.fatal("expected ICE"),
340 self.check_forbid_output(&output_to_check, &proc_res);
343 fn run_rfail_test(&self) {
344 let pm = self.pass_mode();
345 let should_run = self.run_if_enabled();
346 let proc_res = self.compile_test(should_run, self.should_emit_metadata(pm));
348 if !proc_res.status.success() {
349 self.fatal_proc_rec("compilation failed!", &proc_res);
352 if let WillExecute::Disabled = should_run {
356 let proc_res = self.exec_compiled_test();
358 // The value our Makefile configures valgrind to return on failure
359 const VALGRIND_ERR: i32 = 100;
360 if proc_res.status.code() == Some(VALGRIND_ERR) {
361 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
364 let output_to_check = self.get_output(&proc_res);
365 self.check_correct_failure_status(&proc_res);
366 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
369 fn get_output(&self, proc_res: &ProcRes) -> String {
370 if self.props.check_stdout {
371 format!("{}{}", proc_res.stdout, proc_res.stderr)
373 proc_res.stderr.clone()
377 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
378 let expected_status = Some(self.props.failure_status);
379 let received_status = proc_res.status.code();
381 if expected_status != received_status {
384 "Error: expected failure status ({:?}) but received status {:?}.",
385 expected_status, received_status
392 fn run_rpass_test(&self) {
393 let emit_metadata = self.should_emit_metadata(self.pass_mode());
394 let should_run = self.run_if_enabled();
395 let proc_res = self.compile_test(should_run, emit_metadata);
397 if !proc_res.status.success() {
398 self.fatal_proc_rec("compilation failed!", &proc_res);
401 if let WillExecute::Disabled = should_run {
405 // FIXME(#41968): Move this check to tidy?
406 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
408 expected_errors.is_empty(),
409 "run-pass tests with expected warnings should be moved to ui/"
412 let proc_res = self.exec_compiled_test();
413 if !proc_res.status.success() {
414 self.fatal_proc_rec("test run failed!", &proc_res);
418 fn run_valgrind_test(&self) {
419 assert!(self.revision.is_none(), "revisions not relevant here");
421 if self.config.valgrind_path.is_none() {
422 assert!(!self.config.force_valgrind);
423 return self.run_rpass_test();
426 let should_run = self.run_if_enabled();
427 let mut proc_res = self.compile_test(should_run, EmitMetadata::No);
429 if !proc_res.status.success() {
430 self.fatal_proc_rec("compilation failed!", &proc_res);
433 if let WillExecute::Disabled = should_run {
437 let mut new_config = self.config.clone();
438 new_config.runtool = new_config.valgrind_path.clone();
439 let new_cx = TestCx { config: &new_config, ..*self };
440 proc_res = new_cx.exec_compiled_test();
442 if !proc_res.status.success() {
443 self.fatal_proc_rec("test run failed!", &proc_res);
447 fn run_pretty_test(&self) {
448 if self.props.pp_exact.is_some() {
449 logv(self.config, "testing for exact pretty-printing".to_owned());
451 logv(self.config, "testing for converging pretty-printing".to_owned());
454 let rounds = match self.props.pp_exact {
459 let src = fs::read_to_string(&self.testpaths.file).unwrap();
460 let mut srcs = vec![src];
463 while round < rounds {
466 format!("pretty-printing round {} revision {:?}", round, self.revision),
469 if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) };
471 let proc_res = self.print_source(read_from, &self.props.pretty_mode);
472 if !proc_res.status.success() {
475 "pretty-printing failed in round {} revision {:?}",
482 let ProcRes { stdout, .. } = proc_res;
487 let mut expected = match self.props.pp_exact {
489 let filepath = self.testpaths.file.parent().unwrap().join(file);
490 fs::read_to_string(&filepath).unwrap()
492 None => srcs[srcs.len() - 2].clone(),
494 let mut actual = srcs[srcs.len() - 1].clone();
496 if self.props.pp_exact.is_some() {
497 // Now we have to care about line endings
498 let cr = "\r".to_owned();
499 actual = actual.replace(&cr, "");
500 expected = expected.replace(&cr, "");
503 if !self.config.bless {
504 self.compare_source(&expected, &actual);
505 } else if expected != actual {
507 let filepath = match &self.props.pp_exact {
509 filepath_buf = self.testpaths.file.parent().unwrap().join(file);
512 None => &self.testpaths.file,
514 fs::write(filepath, &actual).unwrap();
517 // If we're only making sure that the output matches then just stop here
518 if self.props.pretty_compare_only {
522 // Finally, let's make sure it actually appears to remain valid code
523 let proc_res = self.typecheck_source(actual);
524 if !proc_res.status.success() {
525 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
528 if !self.props.pretty_expanded {
532 // additionally, run `-Zunpretty=expanded` and try to build it.
533 let proc_res = self.print_source(ReadFrom::Path, "expanded");
534 if !proc_res.status.success() {
535 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
538 let ProcRes { stdout: expanded_src, .. } = proc_res;
539 let proc_res = self.typecheck_source(expanded_src);
540 if !proc_res.status.success() {
541 self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res);
545 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
546 let aux_dir = self.aux_output_dir_name();
547 let input: &str = match read_from {
548 ReadFrom::Stdin(_) => "-",
549 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
552 let mut rustc = Command::new(&self.config.rustc_path);
555 .args(&["-Z", &format!("unpretty={}", pretty_type)])
556 .args(&["--target", &self.config.target])
559 .args(&self.props.compile_flags)
560 .envs(self.props.rustc_env.clone());
561 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
563 let src = match read_from {
564 ReadFrom::Stdin(src) => Some(src),
565 ReadFrom::Path => None,
568 self.compose_and_run(
570 self.config.compile_lib_path.to_str().unwrap(),
571 Some(aux_dir.to_str().unwrap()),
576 fn compare_source(&self, expected: &str, actual: &str) {
577 if expected != actual {
579 "pretty-printed source does not match expected source\n\
581 ------------------------------------------\n\
583 ------------------------------------------\n\
585 ------------------------------------------\n\
587 ------------------------------------------\n\
589 ------------------------------------------\n\
593 write_diff(expected, actual, 3),
598 fn set_revision_flags(&self, cmd: &mut Command) {
599 if let Some(revision) = self.revision {
600 // Normalize revisions to be lowercase and replace `-`s with `_`s.
601 // Otherwise the `--cfg` flag is not valid.
602 let normalized_revision = revision.to_lowercase().replace("-", "_");
603 cmd.args(&["--cfg", &normalized_revision]);
607 fn typecheck_source(&self, src: String) -> ProcRes {
608 let mut rustc = Command::new(&self.config.rustc_path);
610 let out_dir = self.output_base_name().with_extension("pretty-out");
611 let _ = fs::remove_dir_all(&out_dir);
612 create_dir_all(&out_dir).unwrap();
614 let target = if self.props.force_host { &*self.config.host } else { &*self.config.target };
616 let aux_dir = self.aux_output_dir_name();
623 .arg(&format!("--target={}", target))
625 .arg(&self.config.build_base)
628 self.set_revision_flags(&mut rustc);
629 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
630 rustc.args(&self.props.compile_flags);
632 self.compose_and_run_compiler(rustc, Some(src))
635 fn run_debuginfo_test(&self) {
636 match self.config.debugger.unwrap() {
637 Debugger::Cdb => self.run_debuginfo_cdb_test(),
638 Debugger::Gdb => self.run_debuginfo_gdb_test(),
639 Debugger::Lldb => self.run_debuginfo_lldb_test(),
643 fn run_debuginfo_cdb_test(&self) {
644 let config = Config {
645 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
646 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
647 ..self.config.clone()
650 let test_cx = TestCx { config: &config, ..*self };
652 test_cx.run_debuginfo_cdb_test_no_opt();
655 fn run_debuginfo_cdb_test_no_opt(&self) {
656 let exe_file = self.make_exe_name();
658 // Existing PDB files are update in-place. When changing the debuginfo
659 // the compiler generates for something, this can lead to the situation
660 // where both the old and the new version of the debuginfo for the same
661 // type is present in the PDB, which is very confusing.
662 // Therefore we delete any existing PDB file before compiling the test
664 // FIXME: If can reliably detect that MSVC's link.exe is used, then
665 // passing `/INCREMENTAL:NO` might be a cleaner way to do this.
666 let pdb_file = exe_file.with_extension(".pdb");
667 if pdb_file.exists() {
668 std::fs::remove_file(pdb_file).unwrap();
671 // compile test file (it should have 'compile-flags:-g' in the header)
672 let should_run = self.run_if_enabled();
673 let compile_result = self.compile_test(should_run, EmitMetadata::No);
674 if !compile_result.status.success() {
675 self.fatal_proc_rec("compilation failed!", &compile_result);
677 if let WillExecute::Disabled = should_run {
682 static PREFIXES: &[&str] = &["cdb", "cdbg"];
683 // No "native rust support" variation for CDB yet.
687 // Parse debugger commands etc from test files
688 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
689 match DebuggerCommands::parse_from(
690 &self.testpaths.file,
696 Err(e) => self.fatal(&e),
699 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
700 let mut script_str = String::with_capacity(2048);
701 script_str.push_str("version\n"); // List CDB (and more) version info in test output
702 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
704 // If a .js file exists next to the source file being tested, then this is a JavaScript
705 // debugging extension that needs to be loaded.
706 let mut js_extension = self.testpaths.file.clone();
707 js_extension.set_extension("cdb.js");
708 if js_extension.exists() {
709 script_str.push_str(&format!(".scriptload \"{}\"\n", js_extension.to_string_lossy()));
712 // Set breakpoints on every line that contains the string "#break"
713 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
714 for line in &breakpoint_lines {
715 script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line));
718 // Append the other `cdb-command:`s
719 for line in &commands {
720 script_str.push_str(line);
721 script_str.push_str("\n");
724 script_str.push_str("\nqq\n"); // Quit the debugger (including remote debugger, if any)
726 // Write the script into a file
727 debug!("script_str = {}", script_str);
728 self.dump_output_file(&script_str, "debugger.script");
729 let debugger_script = self.make_out_name("debugger.script");
731 let cdb_path = &self.config.cdb.as_ref().unwrap();
732 let mut cdb = Command::new(cdb_path);
733 cdb.arg("-lines") // Enable source line debugging.
735 .arg(&debugger_script)
738 let debugger_run_result = self.compose_and_run(
740 self.config.run_lib_path.to_str().unwrap(),
745 if !debugger_run_result.status.success() {
746 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
749 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
750 self.fatal_proc_rec(&e, &debugger_run_result);
754 fn run_debuginfo_gdb_test(&self) {
755 let config = Config {
756 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
757 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
758 ..self.config.clone()
761 let test_cx = TestCx { config: &config, ..*self };
763 test_cx.run_debuginfo_gdb_test_no_opt();
766 fn run_debuginfo_gdb_test_no_opt(&self) {
767 let prefixes = if self.config.gdb_native_rust {
769 static PREFIXES: &[&str] = &["gdb", "gdbr"];
770 println!("NOTE: compiletest thinks it is using GDB with native rust support");
774 static PREFIXES: &[&str] = &["gdb", "gdbg"];
775 println!("NOTE: compiletest thinks it is using GDB without native rust support");
779 let DebuggerCommands { commands, check_lines, breakpoint_lines } =
780 match DebuggerCommands::parse_from(
781 &self.testpaths.file,
787 Err(e) => self.fatal(&e),
789 let mut cmds = commands.join("\n");
791 // compile test file (it should have 'compile-flags:-g' in the header)
792 let should_run = self.run_if_enabled();
793 let compiler_run_result = self.compile_test(should_run, EmitMetadata::No);
794 if !compiler_run_result.status.success() {
795 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
797 if let WillExecute::Disabled = should_run {
801 let exe_file = self.make_exe_name();
803 let debugger_run_result;
804 if is_android_gdb_target(&self.config.target) {
805 cmds = cmds.replace("run", "continue");
807 let tool_path = match self.config.android_cross_path.to_str() {
808 Some(x) => x.to_owned(),
809 None => self.fatal("cannot find android cross path"),
812 // write debugger script
813 let mut script_str = String::with_capacity(2048);
814 script_str.push_str(&format!("set charset {}\n", Self::charset()));
815 script_str.push_str(&format!("set sysroot {}\n", tool_path));
816 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
817 script_str.push_str("target remote :5039\n");
818 script_str.push_str(&format!(
819 "set solib-search-path \
820 ./{}/stage2/lib/rustlib/{}/lib/\n",
821 self.config.host, self.config.target
823 for line in &breakpoint_lines {
827 self.testpaths.file.file_name().unwrap().to_string_lossy(),
832 script_str.push_str(&cmds);
833 script_str.push_str("\nquit\n");
835 debug!("script_str = {}", script_str);
836 self.dump_output_file(&script_str, "debugger.script");
838 let adb_path = &self.config.adb_path;
840 Command::new(adb_path)
843 .arg(&self.config.adb_test_dir)
845 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
847 Command::new(adb_path)
848 .args(&["forward", "tcp:5039", "tcp:5039"])
850 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
852 let adb_arg = format!(
853 "export LD_LIBRARY_PATH={}; \
854 gdbserver{} :5039 {}/{}",
855 self.config.adb_test_dir.clone(),
856 if self.config.target.contains("aarch64") { "64" } else { "" },
857 self.config.adb_test_dir.clone(),
858 exe_file.file_name().unwrap().to_str().unwrap()
861 debug!("adb arg: {}", adb_arg);
862 let mut adb = Command::new(adb_path)
863 .args(&["shell", &adb_arg])
864 .stdout(Stdio::piped())
865 .stderr(Stdio::inherit())
867 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
869 // Wait for the gdbserver to print out "Listening on port ..."
870 // at which point we know that it's started and then we can
871 // execute the debugger below.
872 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
873 let mut line = String::new();
876 stdout.read_line(&mut line).unwrap();
877 if line.starts_with("Listening on port 5039") {
883 let mut debugger_script = OsString::from("-command=");
884 debugger_script.push(self.make_out_name("debugger.script"));
885 let debugger_opts: &[&OsStr] =
886 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
888 let gdb_path = self.config.gdb.as_ref().unwrap();
889 let Output { status, stdout, stderr } = Command::new(&gdb_path)
892 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", gdb_path));
894 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
895 gdb.args(debugger_opts);
896 let cmdline = self.make_cmdline(&gdb, "");
897 logv(self.config, format!("executing {}", cmdline));
901 debugger_run_result = ProcRes {
903 stdout: String::from_utf8(stdout).unwrap(),
904 stderr: String::from_utf8(stderr).unwrap(),
907 if adb.kill().is_err() {
908 println!("Adb process is already finished.");
912 self.config.find_rust_src_root().expect("Could not find Rust source root");
913 let rust_pp_module_rel_path = Path::new("./src/etc");
914 let rust_pp_module_abs_path =
915 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
916 // write debugger script
917 let mut script_str = String::with_capacity(2048);
918 script_str.push_str(&format!("set charset {}\n", Self::charset()));
919 script_str.push_str("show version\n");
921 match self.config.gdb_version {
923 println!("NOTE: compiletest thinks it is using GDB version {}", version);
925 if version > extract_gdb_version("7.4").unwrap() {
926 // Add the directory containing the pretty printers to
927 // GDB's script auto loading safe path
928 script_str.push_str(&format!(
929 "add-auto-load-safe-path {}\n",
930 rust_pp_module_abs_path.replace(r"\", r"\\")
933 let output_base_dir = self.output_base_dir().to_str().unwrap().to_owned();
935 // Add the directory containing the output binary to
936 // include embedded pretty printers to GDB's script
937 // auto loading safe path
938 script_str.push_str(&format!(
939 "add-auto-load-safe-path {}\n",
940 output_base_dir.replace(r"\", r"\\")
946 "NOTE: compiletest does not know which version of \
952 // The following line actually doesn't have to do anything with
953 // pretty printing, it just tells GDB to print values on one line:
954 script_str.push_str("set print pretty off\n");
956 // Add the pretty printer directory to GDB's source-file search path
958 .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\")));
960 // Load the target executable
962 .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\")));
964 // Force GDB to print values in the Rust format.
965 if self.config.gdb_native_rust {
966 script_str.push_str("set language rust\n");
969 // Add line breakpoints
970 for line in &breakpoint_lines {
971 script_str.push_str(&format!(
973 self.testpaths.file.file_name().unwrap().to_string_lossy(),
978 script_str.push_str(&cmds);
979 script_str.push_str("\nquit\n");
981 debug!("script_str = {}", script_str);
982 self.dump_output_file(&script_str, "debugger.script");
984 let mut debugger_script = OsString::from("-command=");
985 debugger_script.push(self.make_out_name("debugger.script"));
987 let debugger_opts: &[&OsStr] =
988 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
990 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
991 gdb.args(debugger_opts).env("PYTHONPATH", rust_pp_module_abs_path);
993 debugger_run_result =
994 self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None);
997 if !debugger_run_result.status.success() {
998 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
1001 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
1002 self.fatal_proc_rec(&e, &debugger_run_result);
1006 fn run_debuginfo_lldb_test(&self) {
1007 if self.config.lldb_python_dir.is_none() {
1008 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1011 let config = Config {
1012 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1013 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1014 ..self.config.clone()
1017 let test_cx = TestCx { config: &config, ..*self };
1019 test_cx.run_debuginfo_lldb_test_no_opt();
1022 fn run_debuginfo_lldb_test_no_opt(&self) {
1023 // compile test file (it should have 'compile-flags:-g' in the header)
1024 let should_run = self.run_if_enabled();
1025 let compile_result = self.compile_test(should_run, EmitMetadata::No);
1026 if !compile_result.status.success() {
1027 self.fatal_proc_rec("compilation failed!", &compile_result);
1029 if let WillExecute::Disabled = should_run {
1033 let exe_file = self.make_exe_name();
1035 match self.config.lldb_version {
1036 Some(ref version) => {
1037 println!("NOTE: compiletest thinks it is using LLDB version {}", version);
1041 "NOTE: compiletest does not know which version of \
1047 let prefixes = if self.config.lldb_native_rust {
1048 static PREFIXES: &[&str] = &["lldb", "lldbr"];
1049 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1052 static PREFIXES: &[&str] = &["lldb", "lldbg"];
1053 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1057 // Parse debugger commands etc from test files
1058 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
1059 match DebuggerCommands::parse_from(
1060 &self.testpaths.file,
1066 Err(e) => self.fatal(&e),
1069 // Write debugger script:
1070 // We don't want to hang when calling `quit` while the process is still running
1071 let mut script_str = String::from("settings set auto-confirm true\n");
1073 // Make LLDB emit its version, so we have it documented in the test output
1074 script_str.push_str("version\n");
1076 // Switch LLDB into "Rust mode"
1078 self.config.find_rust_src_root().expect("Could not find Rust source root");
1079 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_lookup.py");
1080 let rust_pp_module_abs_path =
1081 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
1083 let rust_type_regexes = vec![
1084 "^(alloc::([a-z_]+::)+)String$",
1086 "^&(mut )?\\[.+\\]$",
1087 "^(std::ffi::([a-z_]+::)+)OsString$",
1088 "^(alloc::([a-z_]+::)+)Vec<.+>$",
1089 "^(alloc::([a-z_]+::)+)VecDeque<.+>$",
1090 "^(alloc::([a-z_]+::)+)BTreeSet<.+>$",
1091 "^(alloc::([a-z_]+::)+)BTreeMap<.+>$",
1092 "^(std::collections::([a-z_]+::)+)HashMap<.+>$",
1093 "^(std::collections::([a-z_]+::)+)HashSet<.+>$",
1094 "^(alloc::([a-z_]+::)+)Rc<.+>$",
1095 "^(alloc::([a-z_]+::)+)Arc<.+>$",
1096 "^(core::([a-z_]+::)+)Cell<.+>$",
1097 "^(core::([a-z_]+::)+)Ref<.+>$",
1098 "^(core::([a-z_]+::)+)RefMut<.+>$",
1099 "^(core::([a-z_]+::)+)RefCell<.+>$",
1100 "^core::num::([a-z_]+::)*NonZero.+$",
1104 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1105 script_str.push_str("type synthetic add -l lldb_lookup.synthetic_lookup -x '.*' ");
1106 script_str.push_str("--category Rust\n");
1107 for type_regex in rust_type_regexes {
1108 script_str.push_str("type summary add -F lldb_lookup.summary_lookup -e -x -h ");
1109 script_str.push_str(&format!("'{}' ", type_regex));
1110 script_str.push_str("--category Rust\n");
1112 script_str.push_str("type category enable Rust\n");
1114 // Set breakpoints on every line that contains the string "#break"
1115 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1116 for line in &breakpoint_lines {
1117 script_str.push_str(&format!(
1118 "breakpoint set --file '{}' --line {}\n",
1119 source_file_name, line
1123 // Append the other commands
1124 for line in &commands {
1125 script_str.push_str(line);
1126 script_str.push_str("\n");
1129 // Finally, quit the debugger
1130 script_str.push_str("\nquit\n");
1132 // Write the script into a file
1133 debug!("script_str = {}", script_str);
1134 self.dump_output_file(&script_str, "debugger.script");
1135 let debugger_script = self.make_out_name("debugger.script");
1137 // Let LLDB execute the script via lldb_batchmode.py
1138 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1140 if !debugger_run_result.status.success() {
1141 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1144 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
1145 self.fatal_proc_rec(&e, &debugger_run_result);
1151 test_executable: &Path,
1152 debugger_script: &Path,
1153 rust_src_root: &Path,
1155 // Prepare the lldb_batchmode which executes the debugger script
1156 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1158 Command::new(&self.config.python)
1159 .arg(&lldb_script_path)
1160 .arg(test_executable)
1161 .arg(debugger_script)
1162 .env("PYTHONUNBUFFERED", "1") // Help debugging #78665
1163 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1167 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1168 let (status, out, err) = match cmd.output() {
1169 Ok(Output { status, stdout, stderr }) => {
1170 (status, String::from_utf8(stdout).unwrap(), String::from_utf8(stderr).unwrap())
1172 Err(e) => self.fatal(&format!(
1173 "Failed to setup Python process for \
1179 self.dump_output(&out, &err);
1180 ProcRes { status, stdout: out, stderr: err, cmdline: format!("{:?}", cmd) }
1183 fn cleanup_debug_info_options(&self, options: &Vec<String>) -> Vec<String> {
1184 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1185 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1187 options.iter().filter(|x| !options_to_remove.contains(x)).map(|x| x.clone()).collect()
1190 fn maybe_add_external_args(&self, cmd: &mut Command, args: &Vec<String>) {
1191 // Filter out the arguments that should not be added by runtest here.
1193 // Notable use-cases are: do not add our optimisation flag if
1194 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1195 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/ "opt-level="];
1196 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/ "debuginfo="];
1198 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1199 // its arguments. They need to be collected separately. For now I cannot be bothered to
1200 // implement this the "right" way.
1202 self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f)));
1203 let have_debug_flag = self
1207 .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)));
1210 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1213 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1220 fn check_all_error_patterns(
1222 output_to_check: &str,
1224 pm: Option<PassMode>,
1226 if self.props.error_patterns.is_empty() && self.props.regex_error_patterns.is_empty() {
1231 self.fatal(&format!(
1232 "no error pattern specified in {:?}",
1233 self.testpaths.file.display()
1238 let mut missing_patterns: Vec<String> = Vec::new();
1240 self.check_error_patterns(output_to_check, &mut missing_patterns);
1241 self.check_regex_error_patterns(output_to_check, proc_res, &mut missing_patterns);
1243 if missing_patterns.is_empty() {
1247 if missing_patterns.len() == 1 {
1248 self.fatal_proc_rec(
1249 &format!("error pattern '{}' not found!", missing_patterns[0]),
1253 for pattern in missing_patterns {
1254 self.error(&format!("error pattern '{}' not found!", pattern));
1256 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1260 fn check_error_patterns(&self, output_to_check: &str, missing_patterns: &mut Vec<String>) {
1261 debug!("check_error_patterns");
1262 for pattern in &self.props.error_patterns {
1263 if output_to_check.contains(pattern.trim()) {
1264 debug!("found error pattern {}", pattern);
1266 missing_patterns.push(pattern.to_string());
1271 fn check_regex_error_patterns(
1273 output_to_check: &str,
1275 missing_patterns: &mut Vec<String>,
1277 debug!("check_regex_error_patterns");
1279 for pattern in &self.props.regex_error_patterns {
1280 let pattern = pattern.trim();
1281 let re = match Regex::new(pattern) {
1284 self.fatal_proc_rec(
1285 &format!("invalid regex error pattern '{}': {:?}", pattern, err),
1290 if re.is_match(output_to_check) {
1291 debug!("found regex error pattern {}", pattern);
1293 missing_patterns.push(pattern.to_string());
1298 fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) {
1299 match proc_res.status.code() {
1300 Some(101) if !should_ice => {
1301 self.fatal_proc_rec("compiler encountered internal error", proc_res)
1303 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1308 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1309 for pat in &self.props.forbid_output {
1310 if output_to_check.contains(pat) {
1311 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1316 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1318 "check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1319 expected_errors, proc_res.status
1321 if proc_res.status.success()
1322 && expected_errors.iter().any(|x| x.kind == Some(ErrorKind::Error))
1324 self.fatal_proc_rec("process did not return an error status", proc_res);
1327 if self.props.known_bug {
1328 if !expected_errors.is_empty() {
1329 self.fatal_proc_rec(
1330 "`known_bug` tests should not have an expected errors",
1337 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1338 // from the compiler
1339 let os_file_name = self.testpaths.file.display().to_string();
1341 // on windows, translate all '\' path separators to '/'
1342 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1344 // If the testcase being checked contains at least one expected "help"
1345 // message, then we'll ensure that all "help" messages are expected.
1346 // Otherwise, all "help" messages reported by the compiler will be ignored.
1347 // This logic also applies to "note" messages.
1348 let expect_help = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Help));
1349 let expect_note = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Note));
1351 // Parse the JSON output from the compiler and extract out the messages.
1352 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1353 let mut unexpected = Vec::new();
1354 let mut found = vec![false; expected_errors.len()];
1355 for actual_error in &actual_errors {
1357 expected_errors.iter().enumerate().position(|(index, expected_error)| {
1359 && actual_error.line_num == expected_error.line_num
1360 && (expected_error.kind.is_none()
1361 || actual_error.kind == expected_error.kind)
1362 && actual_error.msg.contains(&expected_error.msg)
1367 // found a match, everybody is happy
1368 assert!(!found[index]);
1369 found[index] = true;
1373 // If the test is a known bug, don't require that the error is annotated
1374 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1375 self.error(&format!(
1376 "{}:{}: unexpected {}: '{}'",
1378 actual_error.line_num,
1382 .map_or(String::from("message"), |k| k.to_string()),
1385 unexpected.push(actual_error);
1391 let mut not_found = Vec::new();
1392 // anything not yet found is a problem
1393 for (index, expected_error) in expected_errors.iter().enumerate() {
1395 self.error(&format!(
1396 "{}:{}: expected {} not found: {}",
1398 expected_error.line_num,
1399 expected_error.kind.as_ref().map_or("message".into(), |k| k.to_string()),
1402 not_found.push(expected_error);
1406 if !unexpected.is_empty() || !not_found.is_empty() {
1407 self.error(&format!(
1408 "{} unexpected errors found, {} expected errors not found",
1412 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1413 if !unexpected.is_empty() {
1414 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1416 if !not_found.is_empty() {
1417 println!("not found errors (from test file): {:#?}\n", not_found);
1423 /// Returns `true` if we should report an error about `actual_error`,
1424 /// which did not match any of the expected error. We always require
1425 /// errors/warnings to be explicitly listed, but only require
1426 /// helps/notes if there are explicit helps/notes given.
1427 fn is_unexpected_compiler_message(
1429 actual_error: &Error,
1433 match actual_error.kind {
1434 Some(ErrorKind::Help) => expect_help,
1435 Some(ErrorKind::Note) => expect_note,
1436 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1437 Some(ErrorKind::Suggestion) | None => false,
1441 fn should_emit_metadata(&self, pm: Option<PassMode>) -> EmitMetadata {
1442 match (pm, self.props.fail_mode, self.config.mode) {
1443 (Some(PassMode::Check), ..) | (_, Some(FailMode::Check), Ui) => EmitMetadata::Yes,
1444 _ => EmitMetadata::No,
1448 fn compile_test(&self, will_execute: WillExecute, emit_metadata: EmitMetadata) -> ProcRes {
1449 self.compile_test_general(will_execute, emit_metadata, self.props.local_pass_mode())
1452 fn compile_test_general(
1454 will_execute: WillExecute,
1455 emit_metadata: EmitMetadata,
1456 local_pm: Option<PassMode>,
1458 // Only use `make_exe_name` when the test ends up being executed.
1459 let output_file = match will_execute {
1460 WillExecute::Yes => TargetLocation::ThisFile(self.make_exe_name()),
1461 WillExecute::No | WillExecute::Disabled => {
1462 TargetLocation::ThisDirectory(self.output_base_dir())
1466 let allow_unused = match self.config.mode {
1468 // UI tests tend to have tons of unused code as
1469 // it's just testing various pieces of the compile, but we don't
1470 // want to actually assert warnings about all this code. Instead
1471 // let's just ignore unused code warnings by defaults and tests
1472 // can turn it back on if needed.
1473 if !self.is_rustdoc()
1474 // Note that we use the local pass mode here as we don't want
1475 // to set unused to allow if we've overridden the pass mode
1476 // via command line flags.
1477 && local_pm != Some(PassMode::Run)
1484 _ => AllowUnused::No,
1488 self.make_compile_args(&self.testpaths.file, output_file, emit_metadata, allow_unused);
1490 rustc.arg("-L").arg(&self.aux_output_dir_name());
1492 self.compose_and_run_compiler(rustc, None)
1495 fn document(&self, out_dir: &Path) -> ProcRes {
1496 if self.props.build_aux_docs {
1497 for rel_ab in &self.props.aux_builds {
1498 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1500 self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1501 let aux_cx = TestCx {
1502 config: self.config,
1504 testpaths: &aux_testpaths,
1505 revision: self.revision,
1507 // Create the directory for the stdout/stderr files.
1508 create_dir_all(aux_cx.output_base_dir()).unwrap();
1509 let auxres = aux_cx.document(out_dir);
1510 if !auxres.status.success() {
1516 let aux_dir = self.aux_output_dir_name();
1518 let rustdoc_path = self.config.rustdoc_path.as_ref().expect("--rustdoc-path not passed");
1519 let mut rustdoc = Command::new(rustdoc_path);
1523 .arg(self.config.run_lib_path.to_str().unwrap())
1530 .arg(&self.testpaths.file)
1531 .args(&self.props.compile_flags);
1533 if self.config.mode == RustdocJson {
1534 rustdoc.arg("--output-format").arg("json").arg("-Zunstable-options");
1537 if let Some(ref linker) = self.config.linker {
1538 rustdoc.arg(format!("-Clinker={}", linker));
1541 self.compose_and_run_compiler(rustdoc, None)
1544 fn exec_compiled_test(&self) -> ProcRes {
1545 let env = &self.props.exec_env;
1547 let proc_res = match &*self.config.target {
1548 // This is pretty similar to below, we're transforming:
1550 // program arg1 arg2
1554 // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2
1556 // The test-client program will upload `program` to the emulator
1557 // along with all other support libraries listed (in this case
1558 // `support-lib.so` and `support-lib2.so`. It will then execute
1559 // the program on the emulator with the arguments specified
1560 // (in the environment we give the process) and then report back
1562 _ if self.config.remote_test_client.is_some() => {
1563 let aux_dir = self.aux_output_dir_name();
1564 let ProcArgs { prog, args } = self.make_run_args();
1565 let mut support_libs = Vec::new();
1566 if let Ok(entries) = aux_dir.read_dir() {
1567 for entry in entries {
1568 let entry = entry.unwrap();
1569 if !entry.path().is_file() {
1572 support_libs.push(entry.path());
1575 let mut test_client =
1576 Command::new(self.config.remote_test_client.as_ref().unwrap());
1578 .args(&["run", &support_libs.len().to_string(), &prog])
1582 self.compose_and_run(
1584 self.config.run_lib_path.to_str().unwrap(),
1585 Some(aux_dir.to_str().unwrap()),
1589 _ if self.config.target.contains("vxworks") => {
1590 let aux_dir = self.aux_output_dir_name();
1591 let ProcArgs { prog, args } = self.make_run_args();
1592 let mut wr_run = Command::new("wr-run");
1593 wr_run.args(&[&prog]).args(args).envs(env.clone());
1594 self.compose_and_run(
1596 self.config.run_lib_path.to_str().unwrap(),
1597 Some(aux_dir.to_str().unwrap()),
1602 let aux_dir = self.aux_output_dir_name();
1603 let ProcArgs { prog, args } = self.make_run_args();
1604 let mut program = Command::new(&prog);
1605 program.args(args).current_dir(&self.output_base_dir()).envs(env.clone());
1606 self.compose_and_run(
1608 self.config.run_lib_path.to_str().unwrap(),
1609 Some(aux_dir.to_str().unwrap()),
1615 if proc_res.status.success() {
1616 // delete the executable after running it to save space.
1617 // it is ok if the deletion failed.
1618 let _ = fs::remove_file(self.make_exe_name());
1624 /// For each `aux-build: foo/bar` annotation, we check to find the
1625 /// file in an `auxiliary` directory relative to the test itself.
1626 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1631 .expect("test file path has no parent")
1634 if !test_ab.exists() {
1635 self.fatal(&format!("aux-build `{}` source not found", test_ab.display()))
1643 .join(self.output_testname_unique())
1647 .expect("aux-build path has no parent")
1652 fn is_vxworks_pure_static(&self) -> bool {
1653 if self.config.target.contains("vxworks") {
1654 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1663 fn is_vxworks_pure_dynamic(&self) -> bool {
1664 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1667 fn build_all_auxiliary(&self, rustc: &mut Command) -> PathBuf {
1668 let aux_dir = self.aux_output_dir_name();
1670 if !self.props.aux_builds.is_empty() {
1671 let _ = fs::remove_dir_all(&aux_dir);
1672 create_dir_all(&aux_dir).unwrap();
1675 for rel_ab in &self.props.aux_builds {
1676 self.build_auxiliary(rel_ab, &aux_dir);
1679 for (aux_name, aux_path) in &self.props.aux_crates {
1680 let is_dylib = self.build_auxiliary(&aux_path, &aux_dir);
1682 get_lib_name(&aux_path.trim_end_matches(".rs").replace('-', "_"), is_dylib);
1683 rustc.arg("--extern").arg(format!("{}={}/{}", aux_name, aux_dir.display(), lib_name));
1689 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1690 let aux_dir = self.build_all_auxiliary(&mut rustc);
1691 self.props.unset_rustc_env.iter().fold(&mut rustc, Command::env_remove);
1692 rustc.envs(self.props.rustc_env.clone());
1693 self.compose_and_run(
1695 self.config.compile_lib_path.to_str().unwrap(),
1696 Some(aux_dir.to_str().unwrap()),
1701 /// Builds an aux dependency.
1703 /// Returns whether or not it is a dylib.
1704 fn build_auxiliary(&self, source_path: &str, aux_dir: &Path) -> bool {
1705 let aux_testpaths = self.compute_aux_test_paths(source_path);
1706 let aux_props = self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1707 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1708 let aux_cx = TestCx {
1709 config: self.config,
1711 testpaths: &aux_testpaths,
1712 revision: self.revision,
1714 // Create the directory for the stdout/stderr files.
1715 create_dir_all(aux_cx.output_base_dir()).unwrap();
1716 let input_file = &aux_testpaths.file;
1718 aux_cx.make_compile_args(input_file, aux_output, EmitMetadata::No, AllowUnused::No);
1720 for key in &aux_props.unset_rustc_env {
1721 aux_rustc.env_remove(key);
1723 aux_rustc.envs(aux_props.rustc_env.clone());
1725 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1727 } else if self.config.target.contains("emscripten")
1728 || (self.config.target.contains("musl")
1729 && !aux_props.force_host
1730 && !self.config.host.contains("musl"))
1731 || self.config.target.contains("wasm32")
1732 || self.config.target.contains("nvptx")
1733 || self.is_vxworks_pure_static()
1734 || self.config.target.contains("sgx")
1735 || self.config.target.contains("bpf")
1737 // We primarily compile all auxiliary libraries as dynamic libraries
1738 // to avoid code size bloat and large binaries as much as possible
1739 // for the test suite (otherwise including libstd statically in all
1740 // executables takes up quite a bit of space).
1742 // For targets like MUSL or Emscripten, however, there is no support for
1743 // dynamic libraries so we just go back to building a normal library. Note,
1744 // however, that for MUSL if the library is built with `force_host` then
1745 // it's ok to be a dylib as the host should always support dylibs.
1746 (false, Some("lib"))
1748 (true, Some("dylib"))
1751 if let Some(crate_type) = crate_type {
1752 aux_rustc.args(&["--crate-type", crate_type]);
1755 aux_rustc.arg("-L").arg(&aux_dir);
1757 let auxres = aux_cx.compose_and_run(
1759 aux_cx.config.compile_lib_path.to_str().unwrap(),
1760 Some(aux_dir.to_str().unwrap()),
1763 if !auxres.status.success() {
1764 self.fatal_proc_rec(
1766 "auxiliary build of {:?} failed to compile: ",
1767 aux_testpaths.file.display()
1775 fn read2_abbreviated(&self, child: Child) -> Output {
1776 let mut filter_paths_from_len = Vec::new();
1777 let mut add_path = |path: &Path| {
1778 let path = path.display().to_string();
1779 let windows = path.replace("\\", "\\\\");
1780 if windows != path {
1781 filter_paths_from_len.push(windows);
1783 filter_paths_from_len.push(path);
1786 // List of paths that will not be measured when determining whether the output is larger
1787 // than the output truncation threshold.
1789 // Note: avoid adding a subdirectory of an already filtered directory here, otherwise the
1790 // same slice of text will be double counted and the truncation might not happen.
1791 add_path(&self.config.src_base);
1792 add_path(&self.config.build_base);
1794 read2_abbreviated(child, &filter_paths_from_len).expect("failed to read output")
1799 mut command: Command,
1801 aux_path: Option<&str>,
1802 input: Option<String>,
1805 let cmdline = self.make_cmdline(&command, lib_path);
1806 logv(self.config, format!("executing {}", cmdline));
1810 command.stdout(Stdio::piped()).stderr(Stdio::piped()).stdin(Stdio::piped());
1812 // Need to be sure to put both the lib_path and the aux path in the dylib
1813 // search path for the child.
1815 env::split_paths(&env::var_os(dylib_env_var()).unwrap_or_default()).collect::<Vec<_>>();
1816 if let Some(p) = aux_path {
1817 path.insert(0, PathBuf::from(p))
1819 path.insert(0, PathBuf::from(lib_path));
1821 // Add the new dylib search path var
1822 let newpath = env::join_paths(&path).unwrap();
1823 command.env(dylib_env_var(), newpath);
1825 let mut child = disable_error_reporting(|| command.spawn())
1826 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", &command));
1827 if let Some(input) = input {
1828 child.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();
1831 let Output { status, stdout, stderr } = self.read2_abbreviated(child);
1833 let result = ProcRes {
1835 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1836 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1840 self.dump_output(&result.stdout, &result.stderr);
1845 fn is_rustdoc(&self) -> bool {
1846 self.config.src_base.ends_with("rustdoc-ui")
1847 || self.config.src_base.ends_with("rustdoc-js")
1848 || self.config.src_base.ends_with("rustdoc-json")
1851 fn make_compile_args(
1854 output_file: TargetLocation,
1855 emit_metadata: EmitMetadata,
1856 allow_unused: AllowUnused,
1858 let is_aux = input_file.components().map(|c| c.as_os_str()).any(|c| c == "auxiliary");
1859 let is_rustdoc = self.is_rustdoc() && !is_aux;
1860 let mut rustc = if !is_rustdoc {
1861 Command::new(&self.config.rustc_path)
1863 Command::new(&self.config.rustdoc_path.clone().expect("no rustdoc built yet"))
1865 rustc.arg(input_file);
1867 // Use a single thread for efficiency and a deterministic error message order
1868 rustc.arg("-Zthreads=1");
1870 // Optionally prevent default --target if specified in test compile-flags.
1871 let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target"));
1875 if self.props.force_host { &*self.config.host } else { &*self.config.target };
1877 rustc.arg(&format!("--target={}", target));
1879 self.set_revision_flags(&mut rustc);
1882 if let Some(ref incremental_dir) = self.props.incremental_dir {
1883 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1884 rustc.args(&["-Z", "incremental-verify-ich"]);
1887 if self.config.mode == CodegenUnits {
1888 rustc.args(&["-Z", "human_readable_cgu_names"]);
1892 if self.config.optimize_tests && !is_rustdoc {
1893 match self.config.mode {
1895 // If optimize-tests is true we still only want to optimize tests that actually get
1896 // executed and that don't specify their own optimization levels.
1897 // Note: aux libs don't have a pass-mode, so they won't get optimized
1898 // unless compile-flags are set in the aux file.
1899 if self.config.optimize_tests
1900 && self.props.pass_mode(&self.config) == Some(PassMode::Run)
1905 .any(|arg| arg == "-O" || arg.contains("opt-level"))
1910 DebugInfo => { /* debuginfo tests must be unoptimized */ }
1917 match self.config.mode {
1919 // If we are extracting and matching errors in the new
1920 // fashion, then you want JSON mode. Old-skool error
1921 // patterns still match the raw compiler output.
1922 if self.props.error_patterns.is_empty()
1923 && self.props.regex_error_patterns.is_empty()
1925 rustc.args(&["--error-format", "json"]);
1926 rustc.args(&["--json", "future-incompat"]);
1928 rustc.arg("-Zui-testing");
1929 rustc.arg("-Zdeduplicate-diagnostics=no");
1932 if !self.props.compile_flags.iter().any(|s| s.starts_with("--error-format")) {
1933 rustc.args(&["--error-format", "json"]);
1934 rustc.args(&["--json", "future-incompat"]);
1936 rustc.arg("-Ccodegen-units=1");
1937 rustc.arg("-Zui-testing");
1938 rustc.arg("-Zdeduplicate-diagnostics=no");
1939 // FIXME: use this for other modes too, for perf?
1940 rustc.arg("-Cstrip=debuginfo");
1947 "-Zdump-mir-exclude-pass-number",
1948 "-Zmir-pretty-relative-line-numbers=yes",
1950 if let Some(pass) = &self.props.mir_unit_test {
1951 rustc.args(&["-Zmir-opt-level=0", &format!("-Zmir-enable-passes=+{}", pass)]);
1953 rustc.arg("-Zmir-opt-level=4");
1956 let mir_dump_dir = self.get_mir_dump_dir();
1957 let _ = fs::remove_dir_all(&mir_dump_dir);
1958 create_dir_all(mir_dump_dir.as_path()).unwrap();
1959 let mut dir_opt = "-Zdump-mir-dir=".to_string();
1960 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
1961 debug!("dir_opt: {:?}", dir_opt);
1965 RunPassValgrind | Pretty | DebugInfo | Codegen | Rustdoc | RustdocJson | RunMake
1966 | CodegenUnits | JsDocTest | Assembly => {
1967 // do not use JSON output
1971 if let (false, EmitMetadata::Yes) = (is_rustdoc, emit_metadata) {
1972 rustc.args(&["--emit", "metadata"]);
1976 if self.config.target == "wasm32-unknown-unknown" || self.is_vxworks_pure_static() {
1977 // rustc.arg("-g"); // get any backtrace at all on errors
1978 } else if !self.props.no_prefer_dynamic {
1979 rustc.args(&["-C", "prefer-dynamic"]);
1984 TargetLocation::ThisFile(path) => {
1985 rustc.arg("-o").arg(path);
1987 TargetLocation::ThisDirectory(path) => {
1989 // `rustdoc` uses `-o` for the output directory.
1990 rustc.arg("-o").arg(path);
1992 rustc.arg("--out-dir").arg(path);
1997 match self.config.compare_mode {
1998 Some(CompareMode::Polonius) => {
1999 rustc.args(&["-Zpolonius"]);
2001 Some(CompareMode::Chalk) => {
2002 rustc.args(&["-Zchalk"]);
2004 Some(CompareMode::SplitDwarf) if self.config.target.contains("windows") => {
2005 rustc.args(&["-Csplit-debuginfo=unpacked", "-Zunstable-options"]);
2007 Some(CompareMode::SplitDwarf) => {
2008 rustc.args(&["-Csplit-debuginfo=unpacked"]);
2010 Some(CompareMode::SplitDwarfSingle) => {
2011 rustc.args(&["-Csplit-debuginfo=packed"]);
2016 // Add `-A unused` before `config` flags and in-test (`props`) flags, so that they can
2018 if let AllowUnused::Yes = allow_unused {
2019 rustc.args(&["-A", "unused"]);
2022 if self.props.force_host {
2023 self.maybe_add_external_args(&mut rustc, &self.config.host_rustcflags);
2025 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
2027 if let Some(ref linker) = self.config.linker {
2028 rustc.arg(format!("-Clinker={}", linker));
2033 // Use dynamic musl for tests because static doesn't allow creating dylibs
2034 if self.config.host.contains("musl") || self.is_vxworks_pure_dynamic() {
2035 rustc.arg("-Ctarget-feature=-crt-static");
2038 rustc.args(&self.props.compile_flags);
2043 fn make_exe_name(&self) -> PathBuf {
2044 // Using a single letter here to keep the path length down for
2045 // Windows. Some test names get very long. rustc creates `rcgu`
2046 // files with the module name appended to it which can more than
2047 // double the length.
2048 let mut f = self.output_base_dir().join("a");
2049 // FIXME: This is using the host architecture exe suffix, not target!
2050 if self.config.target.contains("emscripten") {
2051 f = f.with_extra_extension("js");
2052 } else if self.config.target.contains("wasm32") {
2053 f = f.with_extra_extension("wasm");
2054 } else if self.config.target.contains("spirv") {
2055 f = f.with_extra_extension("spv");
2056 } else if !env::consts::EXE_SUFFIX.is_empty() {
2057 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2062 fn make_run_args(&self) -> ProcArgs {
2063 // If we've got another tool to run under (valgrind),
2064 // then split apart its command
2065 let mut args = self.split_maybe_args(&self.config.runtool);
2067 // If this is emscripten, then run tests under nodejs
2068 if self.config.target.contains("emscripten") {
2069 if let Some(ref p) = self.config.nodejs {
2070 args.push(p.clone());
2072 self.fatal("no NodeJS binary found (--nodejs)");
2074 // If this is otherwise wasm, then run tests under nodejs with our
2076 } else if self.config.target.contains("wasm32") {
2077 if let Some(ref p) = self.config.nodejs {
2078 args.push(p.clone());
2080 self.fatal("no NodeJS binary found (--nodejs)");
2087 .unwrap() // chop off `ui`
2089 .unwrap() // chop off `test`
2091 .unwrap(); // chop off `src`
2092 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2095 let exe_file = self.make_exe_name();
2097 // FIXME (#9639): This needs to handle non-utf8 paths
2098 args.push(exe_file.to_str().unwrap().to_owned());
2100 // Add the arguments in the run_flags directive
2101 args.extend(self.split_maybe_args(&self.props.run_flags));
2103 let prog = args.remove(0);
2104 ProcArgs { prog, args }
2107 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2112 if s.chars().all(|c| c.is_whitespace()) { None } else { Some(s.to_owned()) }
2119 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2122 // Linux and mac don't require adjusting the library search path
2124 format!("{:?}", command)
2126 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2127 // for diagnostic purposes
2128 fn lib_path_cmd_prefix(path: &str) -> String {
2129 format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
2132 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2136 fn dump_output(&self, out: &str, err: &str) {
2137 let revision = if let Some(r) = self.revision { format!("{}.", r) } else { String::new() };
2139 self.dump_output_file(out, &format!("{}out", revision));
2140 self.dump_output_file(err, &format!("{}err", revision));
2141 self.maybe_dump_to_stdout(out, err);
2144 fn dump_output_file(&self, out: &str, extension: &str) {
2145 let outfile = self.make_out_name(extension);
2146 fs::write(&outfile, out).unwrap();
2149 /// Creates a filename for output with the given extension.
2150 /// E.g., `/.../testname.revision.mode/testname.extension`.
2151 fn make_out_name(&self, extension: &str) -> PathBuf {
2152 self.output_base_name().with_extension(extension)
2155 /// Gets the directory where auxiliary files are written.
2156 /// E.g., `/.../testname.revision.mode/auxiliary/`.
2157 fn aux_output_dir_name(&self) -> PathBuf {
2158 self.output_base_dir()
2160 .with_extra_extension(self.config.mode.disambiguator())
2163 /// Generates a unique name for the test, such as `testname.revision.mode`.
2164 fn output_testname_unique(&self) -> PathBuf {
2165 output_testname_unique(self.config, self.testpaths, self.safe_revision())
2168 /// The revision, ignored for incremental compilation since it wants all revisions in
2169 /// the same directory.
2170 fn safe_revision(&self) -> Option<&str> {
2171 if self.config.mode == Incremental { None } else { self.revision }
2174 /// Gets the absolute path to the directory where all output for the given
2175 /// test/revision should reside.
2176 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2177 fn output_base_dir(&self) -> PathBuf {
2178 output_base_dir(self.config, self.testpaths, self.safe_revision())
2181 /// Gets the absolute path to the base filename used as output for the given
2183 /// E.g., `/.../relative/testname.revision.mode/testname`.
2184 fn output_base_name(&self) -> PathBuf {
2185 output_base_name(self.config, self.testpaths, self.safe_revision())
2188 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2189 if self.config.verbose {
2190 println!("------stdout------------------------------");
2191 println!("{}", out);
2192 println!("------stderr------------------------------");
2193 println!("{}", err);
2194 println!("------------------------------------------");
2198 fn error(&self, err: &str) {
2199 match self.revision {
2200 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2201 None => println!("\nerror: {}", err),
2205 fn fatal(&self, err: &str) -> ! {
2207 error!("fatal error, panic: {:?}", err);
2208 panic!("fatal error");
2211 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2213 proc_res.fatal(None, || ());
2216 fn fatal_proc_rec_with_ctx(
2220 on_failure: impl FnOnce(Self),
2223 proc_res.fatal(None, || on_failure(*self));
2226 // codegen tests (using FileCheck)
2228 fn compile_test_and_save_ir(&self) -> ProcRes {
2229 let aux_dir = self.aux_output_dir_name();
2231 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2232 let input_file = &self.testpaths.file;
2234 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2235 rustc.arg("-L").arg(aux_dir).arg("--emit=llvm-ir");
2237 self.compose_and_run_compiler(rustc, None)
2240 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2241 // This works with both `--emit asm` (as default output name for the assembly)
2242 // and `ptx-linker` because the latter can write output at requested location.
2243 let output_path = self.output_base_name().with_extension("s");
2245 let output_file = TargetLocation::ThisFile(output_path.clone());
2246 let input_file = &self.testpaths.file;
2248 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2250 rustc.arg("-L").arg(self.aux_output_dir_name());
2252 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2253 Some("emit-asm") => {
2254 rustc.arg("--emit=asm");
2257 Some("ptx-linker") => {
2258 // No extra flags needed.
2261 Some(_) => self.fatal("unknown 'assembly-output' header"),
2262 None => self.fatal("missing 'assembly-output' header"),
2265 (self.compose_and_run_compiler(rustc, None), output_path)
2268 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2269 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2270 filecheck.arg("--input-file").arg(output).arg(&self.testpaths.file);
2271 // It would be more appropriate to make most of the arguments configurable through
2272 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2275 // For now, though…
2276 let prefix_for_target =
2277 if self.config.target.contains("msvc") { "MSVC" } else { "NONMSVC" };
2278 let prefixes = if let Some(rev) = self.revision {
2279 format!("CHECK,{},{}", prefix_for_target, rev)
2281 format!("CHECK,{}", prefix_for_target)
2283 if self.config.llvm_version.unwrap_or(0) >= 130000 {
2284 filecheck.args(&["--allow-unused-prefixes", "--check-prefixes", &prefixes]);
2286 filecheck.args(&["--check-prefixes", &prefixes]);
2288 self.compose_and_run(filecheck, "", None, None)
2291 fn run_codegen_test(&self) {
2292 if self.config.llvm_filecheck.is_none() {
2293 self.fatal("missing --llvm-filecheck");
2296 let proc_res = self.compile_test_and_save_ir();
2297 if !proc_res.status.success() {
2298 self.fatal_proc_rec("compilation failed!", &proc_res);
2301 let output_path = self.output_base_name().with_extension("ll");
2302 let proc_res = self.verify_with_filecheck(&output_path);
2303 if !proc_res.status.success() {
2304 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2308 fn run_assembly_test(&self) {
2309 if self.config.llvm_filecheck.is_none() {
2310 self.fatal("missing --llvm-filecheck");
2313 let (proc_res, output_path) = self.compile_test_and_save_assembly();
2314 if !proc_res.status.success() {
2315 self.fatal_proc_rec("compilation failed!", &proc_res);
2318 let proc_res = self.verify_with_filecheck(&output_path);
2319 if !proc_res.status.success() {
2320 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2324 fn charset() -> &'static str {
2325 // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset
2326 if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" }
2329 fn run_rustdoc_test(&self) {
2330 assert!(self.revision.is_none(), "revisions not relevant here");
2332 let out_dir = self.output_base_dir();
2333 let _ = fs::remove_dir_all(&out_dir);
2334 create_dir_all(&out_dir).unwrap();
2336 let proc_res = self.document(&out_dir);
2337 if !proc_res.status.success() {
2338 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2341 if self.props.check_test_line_numbers_match {
2342 self.check_rustdoc_test_option(proc_res);
2344 let root = self.config.find_rust_src_root().unwrap();
2345 let mut cmd = Command::new(&self.config.python);
2346 cmd.arg(root.join("src/etc/htmldocck.py")).arg(&out_dir).arg(&self.testpaths.file);
2347 if self.config.bless {
2350 let res = self.cmd2procres(&mut cmd);
2351 if !res.status.success() {
2352 self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| {
2353 this.compare_to_default_rustdoc(&out_dir)
2359 fn compare_to_default_rustdoc(&mut self, out_dir: &Path) {
2360 if !self.config.has_tidy {
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 for entry in walkdir::WalkDir::new(dir) {
2413 let entry = entry.expect("failed to read file");
2414 if entry.file_type().is_file()
2415 && entry.path().extension().and_then(|p| p.to_str()) == Some("html".into())
2418 Command::new("tidy").args(&tidy_args).arg(entry.path()).status().unwrap();
2419 // `tidy` returns 1 if it modified the file.
2420 assert!(status.success() || status.code() == Some(1));
2425 tidy_dir(&compare_dir);
2428 let output = Command::new("git").args(&["config", "--get", "core.pager"]).output().ok();
2429 output.and_then(|out| {
2430 if out.status.success() {
2431 Some(String::from_utf8(out.stdout).expect("invalid UTF8 in git pager"))
2438 let diff_filename = format!("build/tmp/rustdoc-compare-{}.diff", std::process::id());
2440 if !write_filtered_diff(
2444 self.config.verbose,
2445 |file_type, extension| {
2447 && (extension == Some("html".into()) || extension == Some("js".into()))
2453 match self.config.color {
2454 ColorConfig::AlwaysColor => colored::control::set_override(true),
2455 ColorConfig::NeverColor => colored::control::set_override(false),
2459 if let Some(pager) = pager {
2460 let pager = pager.trim();
2461 if self.config.verbose {
2462 eprintln!("using pager {}", pager);
2464 let output = Command::new(pager)
2465 // disable paging; we want this to be non-interactive
2467 .stdin(File::open(&diff_filename).unwrap())
2468 // Capture output and print it explicitly so it will in turn be
2469 // captured by libtest.
2472 assert!(output.status.success());
2473 println!("{}", String::from_utf8_lossy(&output.stdout));
2474 eprintln!("{}", String::from_utf8_lossy(&output.stderr));
2476 use colored::Colorize;
2477 eprintln!("warning: no pager configured, falling back to unified diff");
2479 "help: try configuring a git pager (e.g. `delta`) with `git config --global core.pager delta`"
2481 let mut out = io::stdout();
2482 let mut diff = BufReader::new(File::open(&diff_filename).unwrap());
2483 let mut line = Vec::new();
2486 match diff.read_until(b'\n', &mut line) {
2489 Err(e) => eprintln!("ERROR: {:?}", e),
2491 match String::from_utf8(line.clone()) {
2493 if line.starts_with("+") {
2494 write!(&mut out, "{}", line.green()).unwrap();
2495 } else if line.starts_with("-") {
2496 write!(&mut out, "{}", line.red()).unwrap();
2497 } else if line.starts_with("@") {
2498 write!(&mut out, "{}", line.blue()).unwrap();
2500 out.write_all(line.as_bytes()).unwrap();
2504 write!(&mut out, "{}", String::from_utf8_lossy(&line).reversed()).unwrap();
2511 fn run_rustdoc_json_test(&self) {
2512 //FIXME: Add bless option.
2514 assert!(self.revision.is_none(), "revisions not relevant here");
2516 let out_dir = self.output_base_dir();
2517 let _ = fs::remove_dir_all(&out_dir);
2518 create_dir_all(&out_dir).unwrap();
2520 let proc_res = self.document(&out_dir);
2521 if !proc_res.status.success() {
2522 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2525 let root = self.config.find_rust_src_root().unwrap();
2526 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2527 json_out.set_extension("json");
2528 let res = self.cmd2procres(
2529 Command::new(self.config.jsondocck_path.as_ref().unwrap())
2531 .arg(root.join(&out_dir))
2533 .arg(&self.testpaths.file),
2536 if !res.status.success() {
2537 self.fatal_proc_rec_with_ctx("jsondocck failed!", &res, |_| {
2538 println!("Rustdoc Output:");
2539 proc_res.print_info();
2543 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2544 json_out.set_extension("json");
2546 let res = self.cmd2procres(
2547 Command::new(self.config.jsondoclint_path.as_ref().unwrap()).arg(&json_out),
2550 if !res.status.success() {
2551 self.fatal_proc_rec("jsondoclint failed!", &res);
2555 fn get_lines<P: AsRef<Path>>(
2558 mut other_files: Option<&mut Vec<String>>,
2560 let content = fs::read_to_string(&path).unwrap();
2561 let mut ignore = false;
2565 .filter_map(|(line_nb, line)| {
2566 if (line.trim_start().starts_with("pub mod ")
2567 || line.trim_start().starts_with("mod "))
2568 && line.ends_with(';')
2570 if let Some(ref mut other_files) = other_files {
2571 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2575 let sline = line.rsplit("///").next().unwrap();
2576 let line = sline.trim_start();
2577 if line.starts_with("```") {
2593 fn check_rustdoc_test_option(&self, res: ProcRes) {
2594 let mut other_files = Vec::new();
2595 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2596 let cwd = env::current_dir().unwrap();
2601 .unwrap_or(&self.testpaths.file)
2604 .replace('\\', "/"),
2605 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2607 for other_file in other_files {
2608 let mut path = self.testpaths.file.clone();
2609 path.set_file_name(&format!("{}.rs", other_file));
2611 path.strip_prefix(&cwd).unwrap_or(&path).to_str().unwrap().replace('\\', "/"),
2612 self.get_lines(&path, None),
2617 for _ in res.stdout.split('\n').filter(|s| s.starts_with("test ")).inspect(|s| {
2618 if let Some((left, right)) = s.split_once(" - ") {
2619 let path = left.rsplit("test ").next().unwrap();
2620 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2622 let mut iter = right.split("(line ");
2632 if let Ok(pos) = v.binary_search(&line) {
2635 self.fatal_proc_rec(
2636 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2644 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2646 for (entry, v) in &files {
2648 self.fatal_proc_rec(
2650 "Not found test at line{} \"{}\":{:?}",
2651 if v.len() > 1 { "s" } else { "" },
2662 fn run_codegen_units_test(&self) {
2663 assert!(self.revision.is_none(), "revisions not relevant here");
2665 let proc_res = self.compile_test(WillExecute::No, EmitMetadata::No);
2667 if !proc_res.status.success() {
2668 self.fatal_proc_rec("compilation failed!", &proc_res);
2671 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
2673 const PREFIX: &str = "MONO_ITEM ";
2674 const CGU_MARKER: &str = "@@";
2676 let actual: Vec<MonoItem> = proc_res
2679 .filter(|line| line.starts_with(PREFIX))
2680 .map(|line| str_to_mono_item(line, true))
2683 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2685 .map(|e| str_to_mono_item(&e.msg[..], false))
2688 let mut missing = Vec::new();
2689 let mut wrong_cgus = Vec::new();
2691 for expected_item in &expected {
2692 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2694 if let Some(actual_item) = actual_item_with_same_name {
2695 if !expected_item.codegen_units.is_empty() &&
2696 // Also check for codegen units
2697 expected_item.codegen_units != actual_item.codegen_units
2699 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2702 missing.push(expected_item.string.clone());
2706 let unexpected: Vec<_> = actual
2708 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2709 .map(|acgu| acgu.string.clone())
2712 if !missing.is_empty() {
2715 println!("\nThese items should have been contained but were not:\n");
2717 for item in &missing {
2718 println!("{}", item);
2724 if !unexpected.is_empty() {
2726 let mut sorted = unexpected.clone();
2731 println!("\nThese items were contained but should not have been:\n");
2733 for item in sorted {
2734 println!("{}", item);
2740 if !wrong_cgus.is_empty() {
2741 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2742 println!("\nThe following items were assigned to wrong codegen units:\n");
2744 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2745 println!("{}", expected_item.name);
2746 println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units));
2747 println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units));
2752 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2756 #[derive(Clone, Eq, PartialEq)]
2759 codegen_units: HashSet<String>,
2763 // [MONO_ITEM] name [@@ (cgu)+]
2764 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2765 let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() };
2767 let full_string = format!("{}{}", PREFIX, s);
2769 let parts: Vec<&str> =
2770 s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect();
2772 let name = parts[0].trim();
2774 let cgus = if parts.len() > 1 {
2775 let cgus_str = parts[1];
2780 .filter(|s| !s.is_empty())
2782 if cgu_has_crate_disambiguator {
2783 remove_crate_disambiguators_from_set_of_cgu_names(s)
2793 MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string }
2796 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2797 let mut cgus: Vec<_> = cgus.iter().collect();
2800 let mut string = String::new();
2802 string.push_str(&cgu[..]);
2803 string.push_str(" ");
2809 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2810 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2811 // remove all crate-disambiguators.
2812 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2814 static ref RE: Regex =
2815 Regex::new(r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?")
2820 RE.captures(cgu).unwrap_or_else(|| panic!("invalid cgu name encountered: {}", cgu));
2822 let mut new_name = cgu.to_owned();
2824 if let Some(d2) = captures.name("d2") {
2825 new_name.replace_range(d2.start()..d2.end(), "");
2828 let d1 = captures.name("d1").unwrap();
2829 new_name.replace_range(d1.start()..d1.end(), "");
2834 // The name of merged CGUs is constructed as the names of the original
2835 // CGUs joined with "--". This function splits such composite CGU names
2836 // and handles each component individually.
2837 fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String {
2839 .map(|cgu| remove_crate_disambiguator_from_cgu(cgu))
2840 .collect::<Vec<_>>()
2845 fn init_incremental_test(&self) {
2846 // (See `run_incremental_test` for an overview of how incremental tests work.)
2848 // Before any of the revisions have executed, create the
2849 // incremental workproduct directory. Delete any old
2850 // incremental work products that may be there from prior
2852 let incremental_dir = self.props.incremental_dir.as_ref().unwrap();
2853 if incremental_dir.exists() {
2854 // Canonicalizing the path will convert it to the //?/ format
2855 // on Windows, which enables paths longer than 260 character
2856 let canonicalized = incremental_dir.canonicalize().unwrap();
2857 fs::remove_dir_all(canonicalized).unwrap();
2859 fs::create_dir_all(&incremental_dir).unwrap();
2861 if self.config.verbose {
2862 println!("init_incremental_test: incremental_dir={}", incremental_dir.display());
2866 fn run_incremental_test(&self) {
2867 // Basic plan for a test incremental/foo/bar.rs:
2868 // - load list of revisions rpass1, cfail2, rpass3
2869 // - each should begin with `rpass`, `cfail`, or `rfail`
2870 // - if `rpass`, expect compile and execution to succeed
2871 // - if `cfail`, expect compilation to fail
2872 // - if `rfail`, expect execution to fail
2873 // - create a directory build/foo/bar.incremental
2874 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1
2875 // - because name of revision starts with "rpass", expect success
2876 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2
2877 // - because name of revision starts with "cfail", expect an error
2878 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2879 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3
2880 // - because name of revision starts with "rpass", expect success
2881 // - execute build/foo/bar.exe and save output
2883 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2884 // to #[rustc_dirty] and clean tests I guess
2886 let revision = self.revision.expect("incremental tests require a list of revisions");
2888 // Incremental workproduct directory should have already been created.
2889 let incremental_dir = self.props.incremental_dir.as_ref().unwrap();
2890 assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir");
2892 if self.config.verbose {
2893 print!("revision={:?} props={:#?}", revision, self.props);
2896 if revision.starts_with("rpass") {
2897 if self.props.should_ice {
2898 self.fatal("can only use should-ice in cfail tests");
2900 self.run_rpass_test();
2901 } else if revision.starts_with("rfail") {
2902 if self.props.should_ice {
2903 self.fatal("can only use should-ice in cfail tests");
2905 self.run_rfail_test();
2906 } else if revision.starts_with("cfail") {
2907 self.run_cfail_test();
2909 self.fatal("revision name must begin with rpass, rfail, or cfail");
2913 fn run_rmake_test(&self) {
2914 let cwd = env::current_dir().unwrap();
2915 let src_root = self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
2916 let src_root = cwd.join(&src_root);
2918 let tmpdir = cwd.join(self.output_base_name());
2919 if tmpdir.exists() {
2920 self.aggressive_rm_rf(&tmpdir).unwrap();
2922 create_dir_all(&tmpdir).unwrap();
2924 let host = &self.config.host;
2925 let make = if host.contains("dragonfly")
2926 || host.contains("freebsd")
2927 || host.contains("netbsd")
2928 || host.contains("openbsd")
2935 let mut cmd = Command::new(make);
2936 cmd.current_dir(&self.testpaths.file)
2937 .stdout(Stdio::piped())
2938 .stderr(Stdio::piped())
2939 .env("TARGET", &self.config.target)
2940 .env("PYTHON", &self.config.python)
2942 .env("RUST_BUILD_STAGE", &self.config.stage_id)
2943 .env("RUSTC", cwd.join(&self.config.rustc_path))
2944 .env("TMPDIR", &tmpdir)
2945 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
2946 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
2947 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
2948 .env("LLVM_COMPONENTS", &self.config.llvm_components)
2949 // We for sure don't want these tests to run in parallel, so make
2950 // sure they don't have access to these vars if we run via `make`
2952 .env_remove("MAKEFLAGS")
2953 .env_remove("MFLAGS")
2954 .env_remove("CARGO_MAKEFLAGS");
2956 if let Some(ref rustdoc) = self.config.rustdoc_path {
2957 cmd.env("RUSTDOC", cwd.join(rustdoc));
2960 if let Some(ref rust_demangler) = self.config.rust_demangler_path {
2961 cmd.env("RUST_DEMANGLER", cwd.join(rust_demangler));
2964 if let Some(ref node) = self.config.nodejs {
2965 cmd.env("NODE", node);
2968 if let Some(ref linker) = self.config.linker {
2969 cmd.env("RUSTC_LINKER", linker);
2972 if let Some(ref clang) = self.config.run_clang_based_tests_with {
2973 cmd.env("CLANG", clang);
2976 if let Some(ref filecheck) = self.config.llvm_filecheck {
2977 cmd.env("LLVM_FILECHECK", filecheck);
2980 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
2981 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
2984 // We don't want RUSTFLAGS set from the outside to interfere with
2985 // compiler flags set in the test cases:
2986 cmd.env_remove("RUSTFLAGS");
2988 // Use dynamic musl for tests because static doesn't allow creating dylibs
2989 if self.config.host.contains("musl") {
2990 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1");
2993 if self.config.bless {
2994 cmd.env("RUSTC_BLESS_TEST", "--bless");
2995 // Assume this option is active if the environment variable is "defined", with _any_ value.
2996 // As an example, a `Makefile` can use this option by:
2998 // ifdef RUSTC_BLESS_TEST
2999 // cp "$(TMPDIR)"/actual_something.ext expected_something.ext
3001 // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext
3005 if self.config.target.contains("msvc") && self.config.cc != "" {
3006 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
3007 // and that `lib.exe` lives next to it.
3008 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
3010 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
3011 // a path and instead passes `C:\msys64\foo`, so convert all
3012 // `/`-arguments to MSVC here to `-` arguments.
3017 .map(|s| s.replace("/", "-"))
3018 .collect::<Vec<_>>()
3024 .map(|s| s.replace("/", "-"))
3025 .collect::<Vec<_>>()
3028 cmd.env("IS_MSVC", "1")
3029 .env("IS_WINDOWS", "1")
3030 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
3031 .env("CC", format!("'{}' {}", self.config.cc, cflags))
3032 .env("CXX", format!("'{}' {}", &self.config.cxx, cxxflags));
3034 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
3035 .env("CXX", format!("{} {}", self.config.cxx, self.config.cxxflags))
3036 .env("AR", &self.config.ar);
3038 if self.config.target.contains("windows") {
3039 cmd.env("IS_WINDOWS", "1");
3043 let output = self.read2_abbreviated(cmd.spawn().expect("failed to spawn `make`"));
3044 if !output.status.success() {
3046 status: output.status,
3047 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
3048 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
3049 cmdline: format!("{:?}", cmd),
3051 self.fatal_proc_rec("make failed", &res);
3055 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
3056 for e in path.read_dir()? {
3058 let path = entry.path();
3059 if entry.file_type()?.is_dir() {
3060 self.aggressive_rm_rf(&path)?;
3062 // Remove readonly files as well on windows (by default we can't)
3063 fs::remove_file(&path).or_else(|e| {
3064 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
3065 let mut meta = entry.metadata()?.permissions();
3066 meta.set_readonly(false);
3067 fs::set_permissions(&path, meta)?;
3068 fs::remove_file(&path)
3075 fs::remove_dir(path)
3078 fn run_js_doc_test(&self) {
3079 if let Some(nodejs) = &self.config.nodejs {
3080 let out_dir = self.output_base_dir();
3082 self.document(&out_dir);
3084 let root = self.config.find_rust_src_root().unwrap();
3086 self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem");
3087 let res = self.cmd2procres(
3088 Command::new(&nodejs)
3089 .arg(root.join("src/tools/rustdoc-js/tester.js"))
3090 .arg("--doc-folder")
3092 .arg("--crate-name")
3093 .arg(file_stem.replace("-", "_"))
3095 .arg(self.testpaths.file.with_extension("js")),
3097 if !res.status.success() {
3098 self.fatal_proc_rec("rustdoc-js test failed!", &res);
3101 self.fatal("no nodeJS");
3105 fn load_compare_outputs(
3108 output_kind: TestOutput,
3109 explicit_format: bool,
3111 let stderr_bits = format!("{}bit.stderr", self.config.get_pointer_width());
3112 let (stderr_kind, stdout_kind) = match output_kind {
3113 TestOutput::Compile => (
3115 if self.props.stderr_per_bitwidth { &stderr_bits } else { UI_STDERR }
3119 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT),
3122 let expected_stderr = self.load_expected_output(stderr_kind);
3123 let expected_stdout = self.load_expected_output(stdout_kind);
3125 let normalized_stdout = match output_kind {
3126 TestOutput::Run if self.config.remote_test_client.is_some() => {
3127 // When tests are run using the remote-test-client, the string
3128 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
3129 // is printed to stdout by the client and then captured in the ProcRes,
3130 // so it needs to be removed when comparing the run-pass test execution output
3132 static ref REMOTE_TEST_RE: Regex = Regex::new(
3133 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-.]+)+\", waiting for result\n"
3139 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3144 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3147 let stderr = if explicit_format {
3148 proc_res.stderr.clone()
3150 json::extract_rendered(&proc_res.stderr)
3153 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3156 TestOutput::Compile => {
3157 if !self.props.dont_check_compiler_stdout {
3159 self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3161 if !self.props.dont_check_compiler_stderr {
3163 self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3166 TestOutput::Run => {
3167 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3168 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3174 fn run_ui_test(&self) {
3175 if let Some(FailMode::Build) = self.props.fail_mode {
3176 // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck).
3177 let pm = Some(PassMode::Check);
3178 let proc_res = self.compile_test_general(WillExecute::No, EmitMetadata::Yes, pm);
3179 self.check_if_test_should_compile(&proc_res, pm);
3182 let pm = self.pass_mode();
3183 let should_run = self.should_run(pm);
3184 let emit_metadata = self.should_emit_metadata(pm);
3185 let proc_res = self.compile_test(should_run, emit_metadata);
3186 self.check_if_test_should_compile(&proc_res, pm);
3188 // if the user specified a format in the ui test
3189 // print the output to the stderr file, otherwise extract
3190 // the rendered error messages from json and print them
3191 let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format"));
3193 let expected_fixed = self.load_expected_output(UI_FIXED);
3195 self.check_and_prune_duplicate_outputs(&proc_res, &[], &[]);
3197 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3198 let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr);
3200 if self.config.compare_mode.is_some() {
3201 // don't test rustfix with nll right now
3202 } else if self.config.rustfix_coverage {
3203 // Find out which tests have `MachineApplicable` suggestions but are missing
3204 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3206 // This will return an empty `Vec` in case the executed test file has a
3207 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3208 let suggestions = get_suggestions_from_json(
3211 Filter::MachineApplicableOnly,
3213 .unwrap_or_default();
3214 if !suggestions.is_empty()
3215 && !self.props.run_rustfix
3216 && !self.props.rustfix_only_machine_applicable
3218 let mut coverage_file_path = self.config.build_base.clone();
3219 coverage_file_path.push("rustfix_missing_coverage.txt");
3220 debug!("coverage_file_path: {}", coverage_file_path.display());
3222 let mut file = OpenOptions::new()
3225 .open(coverage_file_path.as_path())
3226 .expect("could not create or open file");
3228 if writeln!(file, "{}", self.testpaths.file.display()).is_err() {
3229 panic!("couldn't write to {}", coverage_file_path.display());
3232 } else if self.props.run_rustfix {
3233 // Apply suggestions from rustc to the code itself
3234 let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap();
3235 let suggestions = get_suggestions_from_json(
3238 if self.props.rustfix_only_machine_applicable {
3239 Filter::MachineApplicableOnly
3245 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|e| {
3247 "failed to apply suggestions for {:?} with rustfix: {}",
3248 self.testpaths.file, e
3252 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3253 } else if !expected_fixed.is_empty() {
3255 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3261 println!("To update references, rerun the tests and pass the `--bless` flag");
3262 let relative_path_to_file =
3263 self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap());
3265 "To only update this specific test, also pass `--test-args {}`",
3266 relative_path_to_file.display(),
3268 self.fatal_proc_rec(
3269 &format!("{} errors occurred comparing output.", errors),
3274 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3276 if let WillExecute::Yes = should_run {
3277 let proc_res = self.exec_compiled_test();
3278 let run_output_errors = if self.props.check_run_results {
3279 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3283 if run_output_errors > 0 {
3284 self.fatal_proc_rec(
3285 &format!("{} errors occurred comparing run output.", run_output_errors),
3289 if self.should_run_successfully(pm) {
3290 if !proc_res.status.success() {
3291 self.fatal_proc_rec("test run failed!", &proc_res);
3293 } else if proc_res.status.success() {
3294 self.fatal_proc_rec("test run succeeded!", &proc_res);
3297 if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty()
3299 // "// error-pattern" comments
3300 let output_to_check = self.get_output(&proc_res);
3301 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
3306 "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3307 proc_res.status={:?} props.error_patterns={:?}",
3309 self.config.compare_mode,
3312 self.props.error_patterns
3314 if !explicit && self.config.compare_mode.is_none() {
3315 let check_patterns = should_run == WillExecute::No
3316 && (!self.props.error_patterns.is_empty()
3317 || !self.props.regex_error_patterns.is_empty());
3319 let check_annotations = !check_patterns || !expected_errors.is_empty();
3322 // "// error-pattern" comments
3323 let output_to_check = self.get_output(&proc_res);
3324 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
3327 if check_annotations {
3328 // "//~ERROR comments"
3329 self.check_expected_errors(expected_errors, &proc_res);
3333 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3334 // And finally, compile the fixed code and make sure it both
3335 // succeeds and has no diagnostics.
3336 let mut rustc = self.make_compile_args(
3337 &self.testpaths.file.with_extension(UI_FIXED),
3338 TargetLocation::ThisFile(self.make_exe_name()),
3342 rustc.arg("-L").arg(&self.aux_output_dir_name());
3343 let res = self.compose_and_run_compiler(rustc, None);
3344 if !res.status.success() {
3345 self.fatal_proc_rec("failed to compile fixed code", &res);
3347 if !res.stderr.is_empty()
3348 && !self.props.rustfix_only_machine_applicable
3349 && !json::rustfix_diagnostics_only(&res.stderr).is_empty()
3351 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3356 fn run_mir_opt_test(&self) {
3357 let pm = self.pass_mode();
3358 let should_run = self.should_run(pm);
3359 let emit_metadata = self.should_emit_metadata(pm);
3360 let proc_res = self.compile_test(should_run, emit_metadata);
3362 if !proc_res.status.success() {
3363 self.fatal_proc_rec("compilation failed!", &proc_res);
3366 self.check_mir_dump();
3368 if let WillExecute::Yes = should_run {
3369 let proc_res = self.exec_compiled_test();
3371 if !proc_res.status.success() {
3372 self.fatal_proc_rec("test run failed!", &proc_res);
3377 fn check_mir_dump(&self) {
3378 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3380 let test_dir = self.testpaths.file.parent().unwrap();
3382 self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace("-", "_");
3384 let mut bit_width = String::new();
3385 if test_file_contents.lines().any(|l| l == "// EMIT_MIR_FOR_EACH_BIT_WIDTH") {
3386 bit_width = format!(".{}bit", self.config.get_pointer_width());
3389 if self.config.bless {
3391 glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, bit_width)).unwrap()
3393 std::fs::remove_file(e.unwrap()).unwrap();
3396 glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, bit_width)).unwrap()
3398 std::fs::remove_file(e.unwrap()).unwrap();
3402 for l in test_file_contents.lines() {
3403 if l.starts_with("// EMIT_MIR ") {
3404 let test_name = l.trim_start_matches("// EMIT_MIR ").trim();
3405 let mut test_names = test_name.split(' ');
3406 // sometimes we specify two files so that we get a diff between the two files
3407 let test_name = test_names.next().unwrap();
3408 let mut expected_file;
3412 if test_name.ends_with(".diff") {
3413 let trimmed = test_name.trim_end_matches(".diff");
3414 let test_against = format!("{}.after.mir", trimmed);
3415 from_file = format!("{}.before.mir", trimmed);
3416 expected_file = format!("{}{}.diff", trimmed, bit_width);
3418 test_names.next().is_none(),
3419 "two mir pass names specified for MIR diff"
3421 to_file = Some(test_against);
3422 } else if let Some(first_pass) = test_names.next() {
3423 let second_pass = test_names.next().unwrap();
3425 test_names.next().is_none(),
3426 "three mir pass names specified for MIR diff"
3429 format!("{}{}.{}-{}.diff", test_name, bit_width, first_pass, second_pass);
3430 let second_file = format!("{}.{}.mir", test_name, second_pass);
3431 from_file = format!("{}.{}.mir", test_name, first_pass);
3432 to_file = Some(second_file);
3434 let ext_re = Regex::new(r#"(\.(mir|dot|html))$"#).unwrap();
3436 .captures_iter(test_name)
3438 .expect("test_name has an invalid extension");
3439 let extension = cap.get(1).unwrap().as_str();
3440 expected_file = format!(
3442 test_name.trim_end_matches(extension),
3446 from_file = test_name.to_string();
3448 test_names.next().is_none(),
3449 "two mir pass names specified for MIR dump"
3453 if !expected_file.starts_with(&test_crate) {
3454 expected_file = format!("{}.{}", test_crate, expected_file);
3456 let expected_file = test_dir.join(expected_file);
3458 let dumped_string = if let Some(after) = to_file {
3459 self.diff_mir_files(from_file.into(), after.into())
3461 let mut output_file = PathBuf::new();
3462 output_file.push(self.get_mir_dump_dir());
3463 output_file.push(&from_file);
3465 "comparing the contents of: {} with {}",
3466 output_file.display(),
3467 expected_file.display()
3469 if !output_file.exists() {
3471 "Output file `{}` from test does not exist, available files are in `{}`",
3472 output_file.display(),
3473 output_file.parent().unwrap().display()
3476 self.check_mir_test_timestamp(&from_file, &output_file);
3477 let dumped_string = fs::read_to_string(&output_file).unwrap();
3478 self.normalize_output(&dumped_string, &[])
3481 if self.config.bless {
3482 let _ = std::fs::remove_file(&expected_file);
3483 std::fs::write(expected_file, dumped_string.as_bytes()).unwrap();
3485 if !expected_file.exists() {
3487 "Output file `{}` from test does not exist",
3488 expected_file.display()
3491 let expected_string = fs::read_to_string(&expected_file).unwrap();
3492 if dumped_string != expected_string {
3493 print!("{}", write_diff(&expected_string, &dumped_string, 3));
3495 "Actual MIR output differs from expected MIR output {}",
3496 expected_file.display()
3504 fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String {
3505 let to_full_path = |path: PathBuf| {
3506 let full = self.get_mir_dump_dir().join(&path);
3509 "the mir dump file for {} does not exist (requested in {})",
3511 self.testpaths.file.display(),
3516 let before = to_full_path(before);
3517 let after = to_full_path(after);
3518 debug!("comparing the contents of: {} with {}", before.display(), after.display());
3519 let before = fs::read_to_string(before).unwrap();
3520 let after = fs::read_to_string(after).unwrap();
3521 let before = self.normalize_output(&before, &[]);
3522 let after = self.normalize_output(&after, &[]);
3523 let mut dumped_string = String::new();
3524 for result in diff::lines(&before, &after) {
3525 use std::fmt::Write;
3527 diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(),
3528 diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(),
3529 diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(),
3535 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3536 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3537 let source_file = &self.testpaths.file;
3538 let output_time = t(output_file);
3539 let source_time = t(source_file);
3540 if source_time > output_time {
3541 debug!("source file time: {:?} output file time: {:?}", source_time, output_time);
3543 "test source file `{}` is newer than potentially stale output file `{}`.",
3544 source_file.display(),
3550 fn get_mir_dump_dir(&self) -> PathBuf {
3551 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3552 debug!("input_file: {:?}", self.testpaths.file);
3553 mir_dump_dir.push(&self.testpaths.relative_dir);
3554 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3558 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3559 let cflags = self.props.compile_flags.join(" ");
3560 let json = cflags.contains("--error-format json")
3561 || cflags.contains("--error-format pretty-json")
3562 || cflags.contains("--error-format=json")
3563 || cflags.contains("--error-format=pretty-json")
3564 || cflags.contains("--output-format json")
3565 || cflags.contains("--output-format=json");
3567 let mut normalized = output.to_string();
3569 let mut normalize_path = |from: &Path, to: &str| {
3570 let mut from = from.display().to_string();
3572 from = from.replace("\\", "\\\\");
3574 normalized = normalized.replace(&from, to);
3577 let parent_dir = self.testpaths.file.parent().unwrap();
3578 normalize_path(parent_dir, "$DIR");
3580 // Paths into the libstd/libcore
3581 let base_dir = self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
3582 let src_dir = base_dir.join("library");
3583 normalize_path(&src_dir, "$SRC_DIR");
3585 // `ui-fulldeps` tests can show paths to the compiler source when testing macros from
3587 // eg. /home/user/rust/compiler
3588 let compiler_src_dir = base_dir.join("compiler");
3589 normalize_path(&compiler_src_dir, "$COMPILER_DIR");
3591 if let Some(virtual_rust_source_base_dir) =
3592 option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR").map(PathBuf::from)
3594 normalize_path(&virtual_rust_source_base_dir.join("library"), "$SRC_DIR");
3595 normalize_path(&virtual_rust_source_base_dir.join("compiler"), "$COMPILER_DIR");
3598 // Paths into the build directory
3599 let test_build_dir = &self.config.build_base;
3600 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3602 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3603 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3604 // eg. /home/user/rust/build
3605 normalize_path(parent_build_dir, "$BUILD_DIR");
3607 // Paths into lib directory.
3608 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3611 // escaped newlines in json strings should be readable
3612 // in the stderr files. There's no point int being correct,
3613 // since only humans process the stderr files.
3614 // Thus we just turn escaped newlines back into newlines.
3615 normalized = normalized.replace("\\n", "\n");
3618 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3619 // with placeholders as we do not want tests needing updated when compiler source code
3621 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3623 static ref SRC_DIR_RE: Regex =
3624 Regex::new("SRC_DIR(.+):\\d+:\\d+(: \\d+:\\d+)?").unwrap();
3627 normalized = SRC_DIR_RE.replace_all(&normalized, "SRC_DIR$1:LL:COL").into_owned();
3629 normalized = Self::normalize_platform_differences(&normalized);
3630 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3632 // Remove test annotations like `//~ ERROR text` from the output,
3633 // since they duplicate actual errors and make the output hard to read.
3634 // This mirrors the regex in src/tools/tidy/src/style.rs, please update
3635 // both if either are changed.
3637 static ref ANNOTATION_RE: Regex = Regex::new("\\s*//(\\[.*\\])?~.*").unwrap();
3640 normalized = ANNOTATION_RE.replace_all(&normalized, "").into_owned();
3642 // This code normalizes various hashes in v0 symbol mangling that is
3643 // emitted in the ui and mir-opt tests.
3645 static ref V0_CRATE_HASH_PREFIX_RE: Regex =
3646 Regex::new(r"_R.*?Cs[0-9a-zA-Z]+_").unwrap();
3647 static ref V0_CRATE_HASH_RE: Regex = Regex::new(r"Cs[0-9a-zA-Z]+_").unwrap();
3650 const V0_CRATE_HASH_PLACEHOLDER: &str = r"CsCRATE_HASH_";
3651 if V0_CRATE_HASH_PREFIX_RE.is_match(&normalized) {
3652 // Normalize crate hash
3654 V0_CRATE_HASH_RE.replace_all(&normalized, V0_CRATE_HASH_PLACEHOLDER).into_owned();
3658 static ref V0_BACK_REF_PREFIX_RE: Regex = Regex::new(r"\(_R.*?B[0-9a-zA-Z]_").unwrap();
3659 static ref V0_BACK_REF_RE: Regex = Regex::new(r"B[0-9a-zA-Z]_").unwrap();
3662 const V0_BACK_REF_PLACEHOLDER: &str = r"B<REF>_";
3663 if V0_BACK_REF_PREFIX_RE.is_match(&normalized) {
3664 // Normalize back references (see RFC 2603)
3666 V0_BACK_REF_RE.replace_all(&normalized, V0_BACK_REF_PLACEHOLDER).into_owned();
3669 // Custom normalization rules
3670 for rule in custom_rules {
3671 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3672 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3677 /// Normalize output differences across platforms. Generally changes Windows output to be more
3680 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3682 fn normalize_platform_differences(output: &str) -> String {
3684 /// Used to find Windows paths.
3686 /// It's not possible to detect paths in the error messages generally, but this is a
3687 /// decent enough heuristic.
3688 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3690 # Match paths that don't include spaces.
3691 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3693 # If the path starts with a well-known root, then allow spaces.
3694 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3699 let output = output.replace(r"\\", r"\");
3702 .replace_all(&output, |caps: &Captures<'_>| {
3703 println!("{}", &caps[0]);
3704 caps[0].replace(r"\", "/")
3706 .replace("\r\n", "\n")
3709 fn expected_output_path(&self, kind: &str) -> PathBuf {
3711 expected_output_path(&self.testpaths, self.revision, &self.config.compare_mode, kind);
3714 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3715 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3720 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3726 fn load_expected_output(&self, kind: &str) -> String {
3727 let path = self.expected_output_path(kind);
3729 match self.load_expected_output_from_path(&path) {
3731 Err(x) => self.fatal(&x),
3738 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3739 fs::read_to_string(path).map_err(|err| {
3740 format!("failed to load expected output from `{}`: {}", path.display(), err)
3744 fn delete_file(&self, file: &PathBuf) {
3746 // Deleting a nonexistent file would error.
3749 if let Err(e) = fs::remove_file(file) {
3750 self.fatal(&format!("failed to delete `{}`: {}", file.display(), e,));
3754 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3755 if actual == expected {
3759 if !self.config.bless {
3760 if expected.is_empty() {
3761 println!("normalized {}:\n{}\n", kind, actual);
3763 println!("diff of {}:\n", kind);
3764 print!("{}", write_diff(expected, actual, 3));
3768 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3769 let output_file = self
3771 .with_extra_extension(self.revision.unwrap_or(""))
3772 .with_extra_extension(mode)
3773 .with_extra_extension(kind);
3775 let mut files = vec![output_file];
3776 if self.config.bless {
3777 // Delete non-revision .stderr/.stdout file if revisions are used.
3778 // Without this, we'd just generate the new files and leave the old files around.
3779 if self.revision.is_some() {
3781 expected_output_path(self.testpaths, None, &self.config.compare_mode, kind);
3782 self.delete_file(&old);
3784 files.push(expected_output_path(
3787 &self.config.compare_mode,
3792 for output_file in &files {
3793 if actual.is_empty() {
3794 self.delete_file(output_file);
3795 } else if let Err(err) = fs::write(&output_file, &actual) {
3796 self.fatal(&format!(
3797 "failed to write {} to `{}`: {}",
3799 output_file.display(),
3805 println!("\nThe actual {0} differed from the expected {0}.", kind);
3806 for output_file in files {
3807 println!("Actual {} saved to {}", kind, output_file.display());
3809 if self.config.bless { 0 } else { 1 }
3812 fn check_and_prune_duplicate_outputs(
3815 modes: &[CompareMode],
3816 require_same_modes: &[CompareMode],
3818 for kind in UI_EXTENSIONS {
3819 let canon_comparison_path =
3820 expected_output_path(&self.testpaths, self.revision, &None, kind);
3822 let canon = match self.load_expected_output_from_path(&canon_comparison_path) {
3826 let bless = self.config.bless;
3827 let check_and_prune_duplicate_outputs = |mode: &CompareMode, require_same: bool| {
3829 expected_output_path(&self.testpaths, self.revision, &Some(mode.clone()), kind);
3831 // If there is no output, there is nothing to do
3832 let examined_content = match self.load_expected_output_from_path(&examined_path) {
3833 Ok(content) => content,
3837 let is_duplicate = canon == examined_content;
3839 match (bless, require_same, is_duplicate) {
3840 // If we're blessing and the output is the same, then delete the file.
3841 (true, _, true) => {
3842 self.delete_file(&examined_path);
3844 // If we want them to be the same, but they are different, then error.
3845 // We do this wether we bless or not
3846 (_, true, false) => {
3847 self.fatal_proc_rec(
3848 &format!("`{}` should not have different output from base test!", kind),
3856 check_and_prune_duplicate_outputs(mode, false);
3858 for mode in require_same_modes {
3859 check_and_prune_duplicate_outputs(mode, true);
3864 fn create_stamp(&self) {
3865 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3866 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3875 pub struct ProcRes {
3883 pub fn print_info(&self) {
3884 fn render(name: &str, contents: &str) -> String {
3885 let contents = json::extract_rendered(contents);
3886 let contents = contents.trim();
3887 if contents.is_empty() {
3888 format!("{name}: none")
3892 --- {name} -------------------------------\n\
3894 ------------------------------------------",
3900 "status: {}\ncommand: {}\n{}\n{}\n",
3903 render("stdout", &self.stdout),
3904 render("stderr", &self.stderr),
3908 pub fn fatal(&self, err: Option<&str>, on_failure: impl FnOnce()) -> ! {
3909 if let Some(e) = err {
3910 println!("\nerror: {}", e);
3914 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3915 // compiletest, which is unnecessary noise.
3916 std::panic::resume_unwind(Box::new(()));
3921 enum TargetLocation {
3923 ThisDirectory(PathBuf),