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::{add_dylib_path, dylib_env_var, 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};
30 use std::path::{Path, PathBuf};
31 use std::process::{Child, Command, ExitStatus, Output, Stdio};
35 use lazy_static::lazy_static;
38 use crate::extract_gdb_version;
39 use crate::is_android_gdb_target;
42 use debugger::{check_debugger_output, DebuggerCommands};
48 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
50 use winapi::um::errhandlingapi::SetErrorMode;
51 use winapi::um::winbase::SEM_NOGPFAULTERRORBOX;
54 static ref LOCK: Mutex<()> = Mutex::new(());
56 // Error mode is a global variable, so lock it so only one thread will change it
57 let _lock = LOCK.lock().unwrap();
59 // Tell Windows to not show any UI on errors (such as terminating abnormally).
60 // This is important for running tests, since some of them use abnormal
61 // termination by design. This mode is inherited by all child processes.
63 let old_mode = SetErrorMode(SEM_NOGPFAULTERRORBOX); // read inherited flags
64 SetErrorMode(old_mode | SEM_NOGPFAULTERRORBOX);
66 SetErrorMode(old_mode);
72 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
76 /// The platform-specific library name
77 pub fn get_lib_name(lib: &str, dylib: bool) -> String {
78 // In some casess (e.g. MUSL), we build a static
79 // library, rather than a dynamic library.
80 // In this case, the only path we can pass
81 // with '--extern-meta' is the '.lib' file
83 return format!("lib{}.rlib", lib);
87 format!("{}.dll", lib)
88 } else if cfg!(target_os = "macos") {
89 format!("lib{}.dylib", lib)
91 format!("lib{}.so", lib)
95 pub fn run(config: Config, testpaths: &TestPaths, revision: Option<&str>) {
96 match &*config.target {
97 "arm-linux-androideabi"
98 | "armv7-linux-androideabi"
99 | "thumbv7neon-linux-androideabi"
100 | "aarch64-linux-android" => {
101 if !config.adb_device_status {
102 panic!("android device not available");
107 // android has its own gdb handling
108 if config.debugger == Some(Debugger::Gdb) && config.gdb.is_none() {
109 panic!("gdb not available but debuginfo gdb debuginfo test requested");
115 // We're going to be dumping a lot of info. Start on a new line.
118 debug!("running {:?}", testpaths.file.display());
119 let mut props = TestProps::from_file(&testpaths.file, revision, &config);
121 // For non-incremental (i.e. regular UI) tests, the incremental directory
122 // takes into account the revision name, since the revisions are independent
123 // of each other and can race.
124 if props.incremental {
125 props.incremental_dir = Some(incremental_dir(&config, testpaths, revision));
128 let cx = TestCx { config: &config, props: &props, testpaths, revision };
129 create_dir_all(&cx.output_base_dir()).unwrap();
130 if props.incremental {
131 cx.init_incremental_test();
134 if config.mode == Incremental {
135 // Incremental tests are special because they cannot be run in
137 assert!(!props.revisions.is_empty(), "Incremental tests require revisions.");
138 for revision in &props.revisions {
139 let mut revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
140 revision_props.incremental_dir = props.incremental_dir.clone();
141 let rev_cx = TestCx {
143 props: &revision_props,
145 revision: Some(revision),
147 rev_cx.run_revision();
156 pub fn compute_stamp_hash(config: &Config) -> String {
157 let mut hash = DefaultHasher::new();
158 config.stage_id.hash(&mut hash);
159 config.run.hash(&mut hash);
161 match config.debugger {
162 Some(Debugger::Cdb) => {
163 config.cdb.hash(&mut hash);
166 Some(Debugger::Gdb) => {
167 config.gdb.hash(&mut hash);
168 env::var_os("PATH").hash(&mut hash);
169 env::var_os("PYTHONPATH").hash(&mut hash);
172 Some(Debugger::Lldb) => {
173 config.python.hash(&mut hash);
174 config.lldb_python_dir.hash(&mut hash);
175 env::var_os("PATH").hash(&mut hash);
176 env::var_os("PYTHONPATH").hash(&mut hash);
182 if let Ui = config.mode {
183 config.force_pass_mode.hash(&mut hash);
186 format!("{:x}", hash.finish())
189 #[derive(Copy, Clone)]
190 struct TestCx<'test> {
191 config: &'test Config,
192 props: &'test TestProps,
193 testpaths: &'test TestPaths,
194 revision: Option<&'test str>,
207 /// Will this test be executed? Should we use `make_exe_name`?
208 #[derive(Copy, Clone, PartialEq)]
215 /// What value should be passed to `--emit`?
216 #[derive(Copy, Clone)]
224 impl<'test> TestCx<'test> {
225 /// Code executed for each revision in turn (or, if there are no
226 /// revisions, exactly once, with revision == None).
227 fn run_revision(&self) {
228 if self.props.should_ice && self.config.mode != Incremental {
229 self.fatal("cannot use should-ice in a test that is not cfail");
231 match self.config.mode {
232 RunPassValgrind => self.run_valgrind_test(),
233 Pretty => self.run_pretty_test(),
234 DebugInfo => self.run_debuginfo_test(),
235 Codegen => self.run_codegen_test(),
236 Rustdoc => self.run_rustdoc_test(),
237 RustdocJson => self.run_rustdoc_json_test(),
238 CodegenUnits => self.run_codegen_units_test(),
239 Incremental => self.run_incremental_test(),
240 RunMake => self.run_rmake_test(),
241 Ui => self.run_ui_test(),
242 MirOpt => self.run_mir_opt_test(),
243 Assembly => self.run_assembly_test(),
244 JsDocTest => self.run_js_doc_test(),
248 fn pass_mode(&self) -> Option<PassMode> {
249 self.props.pass_mode(self.config)
252 fn should_run(&self, pm: Option<PassMode>) -> WillExecute {
253 let test_should_run = match self.config.mode {
254 Ui if pm == Some(PassMode::Run) || self.props.fail_mode == Some(FailMode::Run) => true,
255 MirOpt if pm == Some(PassMode::Run) => true,
256 Ui | MirOpt => false,
257 mode => panic!("unimplemented for mode {:?}", mode),
259 if test_should_run { self.run_if_enabled() } else { WillExecute::No }
262 fn run_if_enabled(&self) -> WillExecute {
263 if self.config.run_enabled() { WillExecute::Yes } else { WillExecute::Disabled }
266 fn should_run_successfully(&self, pm: Option<PassMode>) -> bool {
267 match self.config.mode {
268 Ui | MirOpt => pm == Some(PassMode::Run),
269 mode => panic!("unimplemented for mode {:?}", mode),
273 fn should_compile_successfully(&self, pm: Option<PassMode>) -> bool {
274 match self.config.mode {
276 Ui => pm.is_some() || self.props.fail_mode > Some(FailMode::Build),
279 self.revision.expect("incremental tests require a list of revisions");
280 if revision.starts_with("rpass") || revision.starts_with("rfail") {
282 } else if revision.starts_with("cfail") {
283 // FIXME: would be nice if incremental revs could start with "cpass"
286 panic!("revision name must begin with rpass, rfail, or cfail");
289 mode => panic!("unimplemented for mode {:?}", mode),
293 fn check_if_test_should_compile(&self, proc_res: &ProcRes, pm: Option<PassMode>) {
294 if self.should_compile_successfully(pm) {
295 if !proc_res.status.success() {
296 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
299 if proc_res.status.success() {
301 &format!("{} test compiled successfully!", self.config.mode)[..],
306 self.check_correct_failure_status(proc_res);
310 fn run_cfail_test(&self) {
311 let pm = self.pass_mode();
312 let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm));
313 self.check_if_test_should_compile(&proc_res, pm);
314 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
316 let output_to_check = self.get_output(&proc_res);
317 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
318 if !expected_errors.is_empty() {
319 if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty()
321 self.fatal("both error pattern and expected errors specified");
323 self.check_expected_errors(expected_errors, &proc_res);
325 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
327 if self.props.should_ice {
328 match proc_res.status.code() {
330 _ => self.fatal("expected ICE"),
334 self.check_forbid_output(&output_to_check, &proc_res);
337 fn run_rfail_test(&self) {
338 let pm = self.pass_mode();
339 let should_run = self.run_if_enabled();
340 let proc_res = self.compile_test(should_run, self.should_emit_metadata(pm));
342 if !proc_res.status.success() {
343 self.fatal_proc_rec("compilation failed!", &proc_res);
346 if let WillExecute::Disabled = should_run {
350 let proc_res = self.exec_compiled_test();
352 // The value our Makefile configures valgrind to return on failure
353 const VALGRIND_ERR: i32 = 100;
354 if proc_res.status.code() == Some(VALGRIND_ERR) {
355 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
358 let output_to_check = self.get_output(&proc_res);
359 self.check_correct_failure_status(&proc_res);
360 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
363 fn get_output(&self, proc_res: &ProcRes) -> String {
364 if self.props.check_stdout {
365 format!("{}{}", proc_res.stdout, proc_res.stderr)
367 proc_res.stderr.clone()
371 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
372 let expected_status = Some(self.props.failure_status);
373 let received_status = proc_res.status.code();
375 if expected_status != received_status {
378 "Error: expected failure status ({:?}) but received status {:?}.",
379 expected_status, received_status
386 fn run_rpass_test(&self) {
387 let emit_metadata = self.should_emit_metadata(self.pass_mode());
388 let should_run = self.run_if_enabled();
389 let proc_res = self.compile_test(should_run, emit_metadata);
391 if !proc_res.status.success() {
392 self.fatal_proc_rec("compilation failed!", &proc_res);
395 if let WillExecute::Disabled = should_run {
399 // FIXME(#41968): Move this check to tidy?
400 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
402 expected_errors.is_empty(),
403 "run-pass tests with expected warnings should be moved to ui/"
406 let proc_res = self.exec_compiled_test();
407 if !proc_res.status.success() {
408 self.fatal_proc_rec("test run failed!", &proc_res);
412 fn run_valgrind_test(&self) {
413 assert!(self.revision.is_none(), "revisions not relevant here");
415 if self.config.valgrind_path.is_none() {
416 assert!(!self.config.force_valgrind);
417 return self.run_rpass_test();
420 let should_run = self.run_if_enabled();
421 let mut proc_res = self.compile_test(should_run, Emit::None);
423 if !proc_res.status.success() {
424 self.fatal_proc_rec("compilation failed!", &proc_res);
427 if let WillExecute::Disabled = should_run {
431 let mut new_config = self.config.clone();
432 new_config.runtool = new_config.valgrind_path.clone();
433 let new_cx = TestCx { config: &new_config, ..*self };
434 proc_res = new_cx.exec_compiled_test();
436 if !proc_res.status.success() {
437 self.fatal_proc_rec("test run failed!", &proc_res);
441 fn run_pretty_test(&self) {
442 if self.props.pp_exact.is_some() {
443 logv(self.config, "testing for exact pretty-printing".to_owned());
445 logv(self.config, "testing for converging pretty-printing".to_owned());
448 let rounds = match self.props.pp_exact {
453 let src = fs::read_to_string(&self.testpaths.file).unwrap();
454 let mut srcs = vec![src];
457 while round < rounds {
460 format!("pretty-printing round {} revision {:?}", round, self.revision),
463 if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) };
465 let proc_res = self.print_source(read_from, &self.props.pretty_mode);
466 if !proc_res.status.success() {
469 "pretty-printing failed in round {} revision {:?}",
476 let ProcRes { stdout, .. } = proc_res;
481 let mut expected = match self.props.pp_exact {
483 let filepath = self.testpaths.file.parent().unwrap().join(file);
484 fs::read_to_string(&filepath).unwrap()
486 None => srcs[srcs.len() - 2].clone(),
488 let mut actual = srcs[srcs.len() - 1].clone();
490 if self.props.pp_exact.is_some() {
491 // Now we have to care about line endings
492 let cr = "\r".to_owned();
493 actual = actual.replace(&cr, "");
494 expected = expected.replace(&cr, "");
497 if !self.config.bless {
498 self.compare_source(&expected, &actual);
499 } else if expected != actual {
501 let filepath = match &self.props.pp_exact {
503 filepath_buf = self.testpaths.file.parent().unwrap().join(file);
506 None => &self.testpaths.file,
508 fs::write(filepath, &actual).unwrap();
511 // If we're only making sure that the output matches then just stop here
512 if self.props.pretty_compare_only {
516 // Finally, let's make sure it actually appears to remain valid code
517 let proc_res = self.typecheck_source(actual);
518 if !proc_res.status.success() {
519 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
522 if !self.props.pretty_expanded {
526 // additionally, run `-Zunpretty=expanded` and try to build it.
527 let proc_res = self.print_source(ReadFrom::Path, "expanded");
528 if !proc_res.status.success() {
529 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
532 let ProcRes { stdout: expanded_src, .. } = proc_res;
533 let proc_res = self.typecheck_source(expanded_src);
534 if !proc_res.status.success() {
535 self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res);
539 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
540 let aux_dir = self.aux_output_dir_name();
541 let input: &str = match read_from {
542 ReadFrom::Stdin(_) => "-",
543 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
546 let mut rustc = Command::new(&self.config.rustc_path);
549 .args(&["-Z", &format!("unpretty={}", pretty_type)])
550 .args(&["--target", &self.config.target])
553 .args(&self.props.compile_flags)
554 .envs(self.props.rustc_env.clone());
555 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
557 let src = match read_from {
558 ReadFrom::Stdin(src) => Some(src),
559 ReadFrom::Path => None,
562 self.compose_and_run(
564 self.config.compile_lib_path.to_str().unwrap(),
565 Some(aux_dir.to_str().unwrap()),
570 fn compare_source(&self, expected: &str, actual: &str) {
571 if expected != actual {
573 "pretty-printed source does not match expected source\n\
575 ------------------------------------------\n\
577 ------------------------------------------\n\
579 ------------------------------------------\n\
581 ------------------------------------------\n\
583 ------------------------------------------\n\
587 write_diff(expected, actual, 3),
592 fn set_revision_flags(&self, cmd: &mut Command) {
593 if let Some(revision) = self.revision {
594 // Normalize revisions to be lowercase and replace `-`s with `_`s.
595 // Otherwise the `--cfg` flag is not valid.
596 let normalized_revision = revision.to_lowercase().replace("-", "_");
597 cmd.args(&["--cfg", &normalized_revision]);
601 fn typecheck_source(&self, src: String) -> ProcRes {
602 let mut rustc = Command::new(&self.config.rustc_path);
604 let out_dir = self.output_base_name().with_extension("pretty-out");
605 let _ = fs::remove_dir_all(&out_dir);
606 create_dir_all(&out_dir).unwrap();
608 let target = if self.props.force_host { &*self.config.host } else { &*self.config.target };
610 let aux_dir = self.aux_output_dir_name();
617 .arg(&format!("--target={}", target))
619 .arg(&self.config.build_base)
622 self.set_revision_flags(&mut rustc);
623 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
624 rustc.args(&self.props.compile_flags);
626 self.compose_and_run_compiler(rustc, Some(src))
629 fn run_debuginfo_test(&self) {
630 match self.config.debugger.unwrap() {
631 Debugger::Cdb => self.run_debuginfo_cdb_test(),
632 Debugger::Gdb => self.run_debuginfo_gdb_test(),
633 Debugger::Lldb => self.run_debuginfo_lldb_test(),
637 fn run_debuginfo_cdb_test(&self) {
638 let config = Config {
639 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
640 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
641 ..self.config.clone()
644 let test_cx = TestCx { config: &config, ..*self };
646 test_cx.run_debuginfo_cdb_test_no_opt();
649 fn run_debuginfo_cdb_test_no_opt(&self) {
650 let exe_file = self.make_exe_name();
652 // Existing PDB files are update in-place. When changing the debuginfo
653 // the compiler generates for something, this can lead to the situation
654 // where both the old and the new version of the debuginfo for the same
655 // type is present in the PDB, which is very confusing.
656 // Therefore we delete any existing PDB file before compiling the test
658 // FIXME: If can reliably detect that MSVC's link.exe is used, then
659 // passing `/INCREMENTAL:NO` might be a cleaner way to do this.
660 let pdb_file = exe_file.with_extension(".pdb");
661 if pdb_file.exists() {
662 std::fs::remove_file(pdb_file).unwrap();
665 // compile test file (it should have 'compile-flags:-g' in the header)
666 let should_run = self.run_if_enabled();
667 let compile_result = self.compile_test(should_run, Emit::None);
668 if !compile_result.status.success() {
669 self.fatal_proc_rec("compilation failed!", &compile_result);
671 if let WillExecute::Disabled = should_run {
676 static PREFIXES: &[&str] = &["cdb", "cdbg"];
677 // No "native rust support" variation for CDB yet.
681 // Parse debugger commands etc from test files
682 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
683 match DebuggerCommands::parse_from(
684 &self.testpaths.file,
690 Err(e) => self.fatal(&e),
693 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
694 let mut script_str = String::with_capacity(2048);
695 script_str.push_str("version\n"); // List CDB (and more) version info in test output
696 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
698 // If a .js file exists next to the source file being tested, then this is a JavaScript
699 // debugging extension that needs to be loaded.
700 let mut js_extension = self.testpaths.file.clone();
701 js_extension.set_extension("cdb.js");
702 if js_extension.exists() {
703 script_str.push_str(&format!(".scriptload \"{}\"\n", js_extension.to_string_lossy()));
706 // Set breakpoints on every line that contains the string "#break"
707 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
708 for line in &breakpoint_lines {
709 script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line));
712 // Append the other `cdb-command:`s
713 for line in &commands {
714 script_str.push_str(line);
715 script_str.push_str("\n");
718 script_str.push_str("qq\n"); // Quit the debugger (including remote debugger, if any)
720 // Write the script into a file
721 debug!("script_str = {}", script_str);
722 self.dump_output_file(&script_str, "debugger.script");
723 let debugger_script = self.make_out_name("debugger.script");
725 let cdb_path = &self.config.cdb.as_ref().unwrap();
726 let mut cdb = Command::new(cdb_path);
727 cdb.arg("-lines") // Enable source line debugging.
729 .arg(&debugger_script)
732 let debugger_run_result = self.compose_and_run(
734 self.config.run_lib_path.to_str().unwrap(),
739 if !debugger_run_result.status.success() {
740 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
743 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
744 self.fatal_proc_rec(&e, &debugger_run_result);
748 fn run_debuginfo_gdb_test(&self) {
749 let config = Config {
750 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
751 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
752 ..self.config.clone()
755 let test_cx = TestCx { config: &config, ..*self };
757 test_cx.run_debuginfo_gdb_test_no_opt();
760 fn run_debuginfo_gdb_test_no_opt(&self) {
761 let prefixes = if self.config.gdb_native_rust {
763 static PREFIXES: &[&str] = &["gdb", "gdbr"];
764 println!("NOTE: compiletest thinks it is using GDB with native rust support");
768 static PREFIXES: &[&str] = &["gdb", "gdbg"];
769 println!("NOTE: compiletest thinks it is using GDB without native rust support");
773 let DebuggerCommands { commands, check_lines, breakpoint_lines } =
774 match DebuggerCommands::parse_from(
775 &self.testpaths.file,
781 Err(e) => self.fatal(&e),
783 let mut cmds = commands.join("\n");
785 // compile test file (it should have 'compile-flags:-g' in the header)
786 let should_run = self.run_if_enabled();
787 let compiler_run_result = self.compile_test(should_run, Emit::None);
788 if !compiler_run_result.status.success() {
789 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
791 if let WillExecute::Disabled = should_run {
795 let exe_file = self.make_exe_name();
797 let debugger_run_result;
798 if is_android_gdb_target(&self.config.target) {
799 cmds = cmds.replace("run", "continue");
801 let tool_path = match self.config.android_cross_path.to_str() {
802 Some(x) => x.to_owned(),
803 None => self.fatal("cannot find android cross path"),
806 // write debugger script
807 let mut script_str = String::with_capacity(2048);
808 script_str.push_str(&format!("set charset {}\n", Self::charset()));
809 script_str.push_str(&format!("set sysroot {}\n", tool_path));
810 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
811 script_str.push_str("target remote :5039\n");
812 script_str.push_str(&format!(
813 "set solib-search-path \
814 ./{}/stage2/lib/rustlib/{}/lib/\n",
815 self.config.host, self.config.target
817 for line in &breakpoint_lines {
821 self.testpaths.file.file_name().unwrap().to_string_lossy(),
826 script_str.push_str(&cmds);
827 script_str.push_str("\nquit\n");
829 debug!("script_str = {}", script_str);
830 self.dump_output_file(&script_str, "debugger.script");
832 let adb_path = &self.config.adb_path;
834 Command::new(adb_path)
837 .arg(&self.config.adb_test_dir)
839 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
841 Command::new(adb_path)
842 .args(&["forward", "tcp:5039", "tcp:5039"])
844 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
846 let adb_arg = format!(
847 "export LD_LIBRARY_PATH={}; \
848 gdbserver{} :5039 {}/{}",
849 self.config.adb_test_dir.clone(),
850 if self.config.target.contains("aarch64") { "64" } else { "" },
851 self.config.adb_test_dir.clone(),
852 exe_file.file_name().unwrap().to_str().unwrap()
855 debug!("adb arg: {}", adb_arg);
856 let mut adb = Command::new(adb_path)
857 .args(&["shell", &adb_arg])
858 .stdout(Stdio::piped())
859 .stderr(Stdio::inherit())
861 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
863 // Wait for the gdbserver to print out "Listening on port ..."
864 // at which point we know that it's started and then we can
865 // execute the debugger below.
866 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
867 let mut line = String::new();
870 stdout.read_line(&mut line).unwrap();
871 if line.starts_with("Listening on port 5039") {
877 let mut debugger_script = OsString::from("-command=");
878 debugger_script.push(self.make_out_name("debugger.script"));
879 let debugger_opts: &[&OsStr] =
880 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
882 let gdb_path = self.config.gdb.as_ref().unwrap();
883 let Output { status, stdout, stderr } = Command::new(&gdb_path)
886 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", gdb_path));
888 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
889 gdb.args(debugger_opts);
890 let cmdline = self.make_cmdline(&gdb, "");
891 logv(self.config, format!("executing {}", cmdline));
895 debugger_run_result = ProcRes {
897 stdout: String::from_utf8(stdout).unwrap(),
898 stderr: String::from_utf8(stderr).unwrap(),
901 if adb.kill().is_err() {
902 println!("Adb process is already finished.");
906 self.config.find_rust_src_root().expect("Could not find Rust source root");
907 let rust_pp_module_rel_path = Path::new("./src/etc");
908 let rust_pp_module_abs_path =
909 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
910 // write debugger script
911 let mut script_str = String::with_capacity(2048);
912 script_str.push_str(&format!("set charset {}\n", Self::charset()));
913 script_str.push_str("show version\n");
915 match self.config.gdb_version {
917 println!("NOTE: compiletest thinks it is using GDB version {}", version);
919 if version > extract_gdb_version("7.4").unwrap() {
920 // Add the directory containing the pretty printers to
921 // GDB's script auto loading safe path
922 script_str.push_str(&format!(
923 "add-auto-load-safe-path {}\n",
924 rust_pp_module_abs_path.replace(r"\", r"\\")
927 let output_base_dir = self.output_base_dir().to_str().unwrap().to_owned();
929 // Add the directory containing the output binary to
930 // include embedded pretty printers to GDB's script
931 // auto loading safe path
932 script_str.push_str(&format!(
933 "add-auto-load-safe-path {}\n",
934 output_base_dir.replace(r"\", r"\\")
940 "NOTE: compiletest does not know which version of \
946 // The following line actually doesn't have to do anything with
947 // pretty printing, it just tells GDB to print values on one line:
948 script_str.push_str("set print pretty off\n");
950 // Add the pretty printer directory to GDB's source-file search path
952 .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\")));
954 // Load the target executable
956 .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\")));
958 // Force GDB to print values in the Rust format.
959 if self.config.gdb_native_rust {
960 script_str.push_str("set language rust\n");
963 // Add line breakpoints
964 for line in &breakpoint_lines {
965 script_str.push_str(&format!(
967 self.testpaths.file.file_name().unwrap().to_string_lossy(),
972 script_str.push_str(&cmds);
973 script_str.push_str("\nquit\n");
975 debug!("script_str = {}", script_str);
976 self.dump_output_file(&script_str, "debugger.script");
978 let mut debugger_script = OsString::from("-command=");
979 debugger_script.push(self.make_out_name("debugger.script"));
981 let debugger_opts: &[&OsStr] =
982 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
984 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
985 gdb.args(debugger_opts).env("PYTHONPATH", rust_pp_module_abs_path);
987 debugger_run_result =
988 self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None);
991 if !debugger_run_result.status.success() {
992 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
995 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
996 self.fatal_proc_rec(&e, &debugger_run_result);
1000 fn run_debuginfo_lldb_test(&self) {
1001 if self.config.lldb_python_dir.is_none() {
1002 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1005 let config = Config {
1006 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1007 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1008 ..self.config.clone()
1011 let test_cx = TestCx { config: &config, ..*self };
1013 test_cx.run_debuginfo_lldb_test_no_opt();
1016 fn run_debuginfo_lldb_test_no_opt(&self) {
1017 // compile test file (it should have 'compile-flags:-g' in the header)
1018 let should_run = self.run_if_enabled();
1019 let compile_result = self.compile_test(should_run, Emit::None);
1020 if !compile_result.status.success() {
1021 self.fatal_proc_rec("compilation failed!", &compile_result);
1023 if let WillExecute::Disabled = should_run {
1027 let exe_file = self.make_exe_name();
1029 match self.config.lldb_version {
1030 Some(ref version) => {
1031 println!("NOTE: compiletest thinks it is using LLDB version {}", version);
1035 "NOTE: compiletest does not know which version of \
1041 let prefixes = if self.config.lldb_native_rust {
1042 static PREFIXES: &[&str] = &["lldb", "lldbr"];
1043 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1046 static PREFIXES: &[&str] = &["lldb", "lldbg"];
1047 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1051 // Parse debugger commands etc from test files
1052 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
1053 match DebuggerCommands::parse_from(
1054 &self.testpaths.file,
1060 Err(e) => self.fatal(&e),
1063 // Write debugger script:
1064 // We don't want to hang when calling `quit` while the process is still running
1065 let mut script_str = String::from("settings set auto-confirm true\n");
1067 // Make LLDB emit its version, so we have it documented in the test output
1068 script_str.push_str("version\n");
1070 // Switch LLDB into "Rust mode"
1072 self.config.find_rust_src_root().expect("Could not find Rust source root");
1073 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_lookup.py");
1074 let rust_pp_module_abs_path =
1075 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
1077 let rust_type_regexes = vec![
1078 "^(alloc::([a-z_]+::)+)String$",
1080 "^&(mut )?\\[.+\\]$",
1081 "^(std::ffi::([a-z_]+::)+)OsString$",
1082 "^(alloc::([a-z_]+::)+)Vec<.+>$",
1083 "^(alloc::([a-z_]+::)+)VecDeque<.+>$",
1084 "^(alloc::([a-z_]+::)+)BTreeSet<.+>$",
1085 "^(alloc::([a-z_]+::)+)BTreeMap<.+>$",
1086 "^(std::collections::([a-z_]+::)+)HashMap<.+>$",
1087 "^(std::collections::([a-z_]+::)+)HashSet<.+>$",
1088 "^(alloc::([a-z_]+::)+)Rc<.+>$",
1089 "^(alloc::([a-z_]+::)+)Arc<.+>$",
1090 "^(core::([a-z_]+::)+)Cell<.+>$",
1091 "^(core::([a-z_]+::)+)Ref<.+>$",
1092 "^(core::([a-z_]+::)+)RefMut<.+>$",
1093 "^(core::([a-z_]+::)+)RefCell<.+>$",
1094 "^core::num::([a-z_]+::)*NonZero.+$",
1098 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1099 script_str.push_str("type synthetic add -l lldb_lookup.synthetic_lookup -x '.*' ");
1100 script_str.push_str("--category Rust\n");
1101 for type_regex in rust_type_regexes {
1102 script_str.push_str("type summary add -F lldb_lookup.summary_lookup -e -x -h ");
1103 script_str.push_str(&format!("'{}' ", type_regex));
1104 script_str.push_str("--category Rust\n");
1106 script_str.push_str("type category enable Rust\n");
1108 // Set breakpoints on every line that contains the string "#break"
1109 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1110 for line in &breakpoint_lines {
1111 script_str.push_str(&format!(
1112 "breakpoint set --file '{}' --line {}\n",
1113 source_file_name, line
1117 // Append the other commands
1118 for line in &commands {
1119 script_str.push_str(line);
1120 script_str.push_str("\n");
1123 // Finally, quit the debugger
1124 script_str.push_str("\nquit\n");
1126 // Write the script into a file
1127 debug!("script_str = {}", script_str);
1128 self.dump_output_file(&script_str, "debugger.script");
1129 let debugger_script = self.make_out_name("debugger.script");
1131 // Let LLDB execute the script via lldb_batchmode.py
1132 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1134 if !debugger_run_result.status.success() {
1135 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1138 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
1139 self.fatal_proc_rec(&e, &debugger_run_result);
1145 test_executable: &Path,
1146 debugger_script: &Path,
1147 rust_src_root: &Path,
1149 // Prepare the lldb_batchmode which executes the debugger script
1150 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1152 Command::new(&self.config.python)
1153 .arg(&lldb_script_path)
1154 .arg(test_executable)
1155 .arg(debugger_script)
1156 .env("PYTHONUNBUFFERED", "1") // Help debugging #78665
1157 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1161 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1162 let (status, out, err) = match cmd.output() {
1163 Ok(Output { status, stdout, stderr }) => {
1164 (status, String::from_utf8(stdout).unwrap(), String::from_utf8(stderr).unwrap())
1166 Err(e) => self.fatal(&format!(
1167 "Failed to setup Python process for \
1173 self.dump_output(&out, &err);
1174 ProcRes { status, stdout: out, stderr: err, cmdline: format!("{:?}", cmd) }
1177 fn cleanup_debug_info_options(&self, options: &Vec<String>) -> Vec<String> {
1178 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1179 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1181 options.iter().filter(|x| !options_to_remove.contains(x)).map(|x| x.clone()).collect()
1184 fn maybe_add_external_args(&self, cmd: &mut Command, args: &Vec<String>) {
1185 // Filter out the arguments that should not be added by runtest here.
1187 // Notable use-cases are: do not add our optimisation flag if
1188 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1189 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/ "opt-level="];
1190 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/ "debuginfo="];
1192 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1193 // its arguments. They need to be collected separately. For now I cannot be bothered to
1194 // implement this the "right" way.
1196 self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f)));
1197 let have_debug_flag = self
1201 .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)));
1204 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1207 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1214 fn check_all_error_patterns(
1216 output_to_check: &str,
1218 pm: Option<PassMode>,
1220 if self.props.error_patterns.is_empty() && self.props.regex_error_patterns.is_empty() {
1225 self.fatal(&format!(
1226 "no error pattern specified in {:?}",
1227 self.testpaths.file.display()
1232 let mut missing_patterns: Vec<String> = Vec::new();
1234 self.check_error_patterns(output_to_check, &mut missing_patterns);
1235 self.check_regex_error_patterns(output_to_check, proc_res, &mut missing_patterns);
1237 if missing_patterns.is_empty() {
1241 if missing_patterns.len() == 1 {
1242 self.fatal_proc_rec(
1243 &format!("error pattern '{}' not found!", missing_patterns[0]),
1247 for pattern in missing_patterns {
1248 self.error(&format!("error pattern '{}' not found!", pattern));
1250 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1254 fn check_error_patterns(&self, output_to_check: &str, missing_patterns: &mut Vec<String>) {
1255 debug!("check_error_patterns");
1256 for pattern in &self.props.error_patterns {
1257 if output_to_check.contains(pattern.trim()) {
1258 debug!("found error pattern {}", pattern);
1260 missing_patterns.push(pattern.to_string());
1265 fn check_regex_error_patterns(
1267 output_to_check: &str,
1269 missing_patterns: &mut Vec<String>,
1271 debug!("check_regex_error_patterns");
1273 for pattern in &self.props.regex_error_patterns {
1274 let pattern = pattern.trim();
1275 let re = match Regex::new(pattern) {
1278 self.fatal_proc_rec(
1279 &format!("invalid regex error pattern '{}': {:?}", pattern, err),
1284 if re.is_match(output_to_check) {
1285 debug!("found regex error pattern {}", pattern);
1287 missing_patterns.push(pattern.to_string());
1292 fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) {
1293 match proc_res.status.code() {
1294 Some(101) if !should_ice => {
1295 self.fatal_proc_rec("compiler encountered internal error", proc_res)
1297 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1302 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1303 for pat in &self.props.forbid_output {
1304 if output_to_check.contains(pat) {
1305 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1310 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1312 "check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1313 expected_errors, proc_res.status
1315 if proc_res.status.success()
1316 && expected_errors.iter().any(|x| x.kind == Some(ErrorKind::Error))
1318 self.fatal_proc_rec("process did not return an error status", proc_res);
1321 if self.props.known_bug {
1322 if !expected_errors.is_empty() {
1323 self.fatal_proc_rec(
1324 "`known_bug` tests should not have an expected errors",
1331 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1332 // from the compiler
1333 let os_file_name = self.testpaths.file.display().to_string();
1335 // on windows, translate all '\' path separators to '/'
1336 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1338 // If the testcase being checked contains at least one expected "help"
1339 // message, then we'll ensure that all "help" messages are expected.
1340 // Otherwise, all "help" messages reported by the compiler will be ignored.
1341 // This logic also applies to "note" messages.
1342 let expect_help = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Help));
1343 let expect_note = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Note));
1345 // Parse the JSON output from the compiler and extract out the messages.
1346 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1347 let mut unexpected = Vec::new();
1348 let mut found = vec![false; expected_errors.len()];
1349 for actual_error in &actual_errors {
1351 expected_errors.iter().enumerate().position(|(index, expected_error)| {
1353 && actual_error.line_num == expected_error.line_num
1354 && (expected_error.kind.is_none()
1355 || actual_error.kind == expected_error.kind)
1356 && actual_error.msg.contains(&expected_error.msg)
1361 // found a match, everybody is happy
1362 assert!(!found[index]);
1363 found[index] = true;
1367 // If the test is a known bug, don't require that the error is annotated
1368 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1369 self.error(&format!(
1370 "{}:{}: unexpected {}: '{}'",
1372 actual_error.line_num,
1376 .map_or(String::from("message"), |k| k.to_string()),
1379 unexpected.push(actual_error);
1385 let mut not_found = Vec::new();
1386 // anything not yet found is a problem
1387 for (index, expected_error) in expected_errors.iter().enumerate() {
1389 self.error(&format!(
1390 "{}:{}: expected {} not found: {}",
1392 expected_error.line_num,
1393 expected_error.kind.as_ref().map_or("message".into(), |k| k.to_string()),
1396 not_found.push(expected_error);
1400 if !unexpected.is_empty() || !not_found.is_empty() {
1401 self.error(&format!(
1402 "{} unexpected errors found, {} expected errors not found",
1406 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1407 if !unexpected.is_empty() {
1408 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1410 if !not_found.is_empty() {
1411 println!("not found errors (from test file): {:#?}\n", not_found);
1417 /// Returns `true` if we should report an error about `actual_error`,
1418 /// which did not match any of the expected error. We always require
1419 /// errors/warnings to be explicitly listed, but only require
1420 /// helps/notes if there are explicit helps/notes given.
1421 fn is_unexpected_compiler_message(
1423 actual_error: &Error,
1427 match actual_error.kind {
1428 Some(ErrorKind::Help) => expect_help,
1429 Some(ErrorKind::Note) => expect_note,
1430 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1431 Some(ErrorKind::Suggestion) | None => false,
1435 fn should_emit_metadata(&self, pm: Option<PassMode>) -> Emit {
1436 match (pm, self.props.fail_mode, self.config.mode) {
1437 (Some(PassMode::Check), ..) | (_, Some(FailMode::Check), Ui) => Emit::Metadata,
1442 fn compile_test(&self, will_execute: WillExecute, emit: Emit) -> ProcRes {
1443 self.compile_test_general(will_execute, emit, self.props.local_pass_mode())
1446 fn compile_test_general(
1448 will_execute: WillExecute,
1450 local_pm: Option<PassMode>,
1452 // Only use `make_exe_name` when the test ends up being executed.
1453 let output_file = match will_execute {
1454 WillExecute::Yes => TargetLocation::ThisFile(self.make_exe_name()),
1455 WillExecute::No | WillExecute::Disabled => {
1456 TargetLocation::ThisDirectory(self.output_base_dir())
1460 let allow_unused = match self.config.mode {
1462 // UI tests tend to have tons of unused code as
1463 // it's just testing various pieces of the compile, but we don't
1464 // want to actually assert warnings about all this code. Instead
1465 // let's just ignore unused code warnings by defaults and tests
1466 // can turn it back on if needed.
1467 if !self.is_rustdoc()
1468 // Note that we use the local pass mode here as we don't want
1469 // to set unused to allow if we've overridden the pass mode
1470 // via command line flags.
1471 && local_pm != Some(PassMode::Run)
1478 _ => AllowUnused::No,
1481 let rustc = self.make_compile_args(
1482 &self.testpaths.file,
1489 self.compose_and_run_compiler(rustc, None)
1492 fn document(&self, out_dir: &Path) -> ProcRes {
1493 if self.props.build_aux_docs {
1494 for rel_ab in &self.props.aux_builds {
1495 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1497 self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1498 let aux_cx = TestCx {
1499 config: self.config,
1501 testpaths: &aux_testpaths,
1502 revision: self.revision,
1504 // Create the directory for the stdout/stderr files.
1505 create_dir_all(aux_cx.output_base_dir()).unwrap();
1506 let auxres = aux_cx.document(out_dir);
1507 if !auxres.status.success() {
1513 let aux_dir = self.aux_output_dir_name();
1515 let rustdoc_path = self.config.rustdoc_path.as_ref().expect("--rustdoc-path not passed");
1516 let mut rustdoc = Command::new(rustdoc_path);
1520 .arg(self.config.run_lib_path.to_str().unwrap())
1527 .arg(&self.testpaths.file)
1528 .args(&self.props.compile_flags);
1530 if self.config.mode == RustdocJson {
1531 rustdoc.arg("--output-format").arg("json").arg("-Zunstable-options");
1534 if let Some(ref linker) = self.config.linker {
1535 rustdoc.arg(format!("-Clinker={}", linker));
1538 self.compose_and_run_compiler(rustdoc, None)
1541 fn exec_compiled_test(&self) -> ProcRes {
1542 let env = &self.props.exec_env;
1544 let proc_res = match &*self.config.target {
1545 // This is pretty similar to below, we're transforming:
1547 // program arg1 arg2
1551 // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2
1553 // The test-client program will upload `program` to the emulator
1554 // along with all other support libraries listed (in this case
1555 // `support-lib.so` and `support-lib2.so`. It will then execute
1556 // the program on the emulator with the arguments specified
1557 // (in the environment we give the process) and then report back
1559 _ if self.config.remote_test_client.is_some() => {
1560 let aux_dir = self.aux_output_dir_name();
1561 let ProcArgs { prog, args } = self.make_run_args();
1562 let mut support_libs = Vec::new();
1563 if let Ok(entries) = aux_dir.read_dir() {
1564 for entry in entries {
1565 let entry = entry.unwrap();
1566 if !entry.path().is_file() {
1569 support_libs.push(entry.path());
1572 let mut test_client =
1573 Command::new(self.config.remote_test_client.as_ref().unwrap());
1575 .args(&["run", &support_libs.len().to_string(), &prog])
1579 self.compose_and_run(
1581 self.config.run_lib_path.to_str().unwrap(),
1582 Some(aux_dir.to_str().unwrap()),
1586 _ if self.config.target.contains("vxworks") => {
1587 let aux_dir = self.aux_output_dir_name();
1588 let ProcArgs { prog, args } = self.make_run_args();
1589 let mut wr_run = Command::new("wr-run");
1590 wr_run.args(&[&prog]).args(args).envs(env.clone());
1591 self.compose_and_run(
1593 self.config.run_lib_path.to_str().unwrap(),
1594 Some(aux_dir.to_str().unwrap()),
1599 let aux_dir = self.aux_output_dir_name();
1600 let ProcArgs { prog, args } = self.make_run_args();
1601 let mut program = Command::new(&prog);
1602 program.args(args).current_dir(&self.output_base_dir()).envs(env.clone());
1603 self.compose_and_run(
1605 self.config.run_lib_path.to_str().unwrap(),
1606 Some(aux_dir.to_str().unwrap()),
1612 if proc_res.status.success() {
1613 // delete the executable after running it to save space.
1614 // it is ok if the deletion failed.
1615 let _ = fs::remove_file(self.make_exe_name());
1621 /// For each `aux-build: foo/bar` annotation, we check to find the
1622 /// file in an `auxiliary` directory relative to the test itself.
1623 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1628 .expect("test file path has no parent")
1631 if !test_ab.exists() {
1632 self.fatal(&format!("aux-build `{}` source not found", test_ab.display()))
1640 .join(self.output_testname_unique())
1644 .expect("aux-build path has no parent")
1649 fn is_vxworks_pure_static(&self) -> bool {
1650 if self.config.target.contains("vxworks") {
1651 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1660 fn is_vxworks_pure_dynamic(&self) -> bool {
1661 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1664 fn build_all_auxiliary(&self, rustc: &mut Command) -> PathBuf {
1665 let aux_dir = self.aux_output_dir_name();
1667 if !self.props.aux_builds.is_empty() {
1668 let _ = fs::remove_dir_all(&aux_dir);
1669 create_dir_all(&aux_dir).unwrap();
1672 for rel_ab in &self.props.aux_builds {
1673 self.build_auxiliary(rel_ab, &aux_dir);
1676 for (aux_name, aux_path) in &self.props.aux_crates {
1677 let is_dylib = self.build_auxiliary(&aux_path, &aux_dir);
1679 get_lib_name(&aux_path.trim_end_matches(".rs").replace('-', "_"), is_dylib);
1680 rustc.arg("--extern").arg(format!("{}={}/{}", aux_name, aux_dir.display(), lib_name));
1686 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1687 let aux_dir = self.build_all_auxiliary(&mut rustc);
1688 self.props.unset_rustc_env.iter().fold(&mut rustc, Command::env_remove);
1689 rustc.envs(self.props.rustc_env.clone());
1690 self.compose_and_run(
1692 self.config.compile_lib_path.to_str().unwrap(),
1693 Some(aux_dir.to_str().unwrap()),
1698 /// Builds an aux dependency.
1700 /// Returns whether or not it is a dylib.
1701 fn build_auxiliary(&self, source_path: &str, aux_dir: &Path) -> bool {
1702 let aux_testpaths = self.compute_aux_test_paths(source_path);
1703 let aux_props = self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1704 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1705 let aux_cx = TestCx {
1706 config: self.config,
1708 testpaths: &aux_testpaths,
1709 revision: self.revision,
1711 // Create the directory for the stdout/stderr files.
1712 create_dir_all(aux_cx.output_base_dir()).unwrap();
1713 let input_file = &aux_testpaths.file;
1714 let mut aux_rustc = aux_cx.make_compile_args(
1722 for key in &aux_props.unset_rustc_env {
1723 aux_rustc.env_remove(key);
1725 aux_rustc.envs(aux_props.rustc_env.clone());
1727 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1729 } else if self.config.target.contains("emscripten")
1730 || (self.config.target.contains("musl")
1731 && !aux_props.force_host
1732 && !self.config.host.contains("musl"))
1733 || self.config.target.contains("wasm32")
1734 || self.config.target.contains("nvptx")
1735 || self.is_vxworks_pure_static()
1736 || self.config.target.contains("sgx")
1737 || self.config.target.contains("bpf")
1739 // We primarily compile all auxiliary libraries as dynamic libraries
1740 // to avoid code size bloat and large binaries as much as possible
1741 // for the test suite (otherwise including libstd statically in all
1742 // executables takes up quite a bit of space).
1744 // For targets like MUSL or Emscripten, however, there is no support for
1745 // dynamic libraries so we just go back to building a normal library. Note,
1746 // however, that for MUSL if the library is built with `force_host` then
1747 // it's ok to be a dylib as the host should always support dylibs.
1748 (false, Some("lib"))
1750 (true, Some("dylib"))
1753 if let Some(crate_type) = crate_type {
1754 aux_rustc.args(&["--crate-type", crate_type]);
1757 aux_rustc.arg("-L").arg(&aux_dir);
1759 let auxres = aux_cx.compose_and_run(
1761 aux_cx.config.compile_lib_path.to_str().unwrap(),
1762 Some(aux_dir.to_str().unwrap()),
1765 if !auxres.status.success() {
1766 self.fatal_proc_rec(
1768 "auxiliary build of {:?} failed to compile: ",
1769 aux_testpaths.file.display()
1777 fn read2_abbreviated(&self, child: Child) -> Output {
1778 let mut filter_paths_from_len = Vec::new();
1779 let mut add_path = |path: &Path| {
1780 let path = path.display().to_string();
1781 let windows = path.replace("\\", "\\\\");
1782 if windows != path {
1783 filter_paths_from_len.push(windows);
1785 filter_paths_from_len.push(path);
1788 // List of paths that will not be measured when determining whether the output is larger
1789 // than the output truncation threshold.
1791 // Note: avoid adding a subdirectory of an already filtered directory here, otherwise the
1792 // same slice of text will be double counted and the truncation might not happen.
1793 add_path(&self.config.src_base);
1794 add_path(&self.config.build_base);
1796 read2_abbreviated(child, &filter_paths_from_len).expect("failed to read output")
1801 mut command: Command,
1803 aux_path: Option<&str>,
1804 input: Option<String>,
1807 let cmdline = self.make_cmdline(&command, lib_path);
1808 logv(self.config, format!("executing {}", cmdline));
1812 command.stdout(Stdio::piped()).stderr(Stdio::piped()).stdin(Stdio::piped());
1814 // Need to be sure to put both the lib_path and the aux path in the dylib
1815 // search path for the child.
1816 add_dylib_path(&mut command, iter::once(lib_path).chain(aux_path));
1818 let mut child = disable_error_reporting(|| command.spawn())
1819 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", &command));
1820 if let Some(input) = input {
1821 child.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();
1824 let Output { status, stdout, stderr } = self.read2_abbreviated(child);
1826 let result = ProcRes {
1828 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1829 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1833 self.dump_output(&result.stdout, &result.stderr);
1838 fn is_rustdoc(&self) -> bool {
1839 self.config.src_base.ends_with("rustdoc-ui")
1840 || self.config.src_base.ends_with("rustdoc-js")
1841 || self.config.src_base.ends_with("rustdoc-json")
1844 fn make_compile_args(
1847 output_file: TargetLocation,
1849 allow_unused: AllowUnused,
1850 link_to_aux: LinkToAux,
1852 let is_aux = input_file.components().map(|c| c.as_os_str()).any(|c| c == "auxiliary");
1853 let is_rustdoc = self.is_rustdoc() && !is_aux;
1854 let mut rustc = if !is_rustdoc {
1855 Command::new(&self.config.rustc_path)
1857 Command::new(&self.config.rustdoc_path.clone().expect("no rustdoc built yet"))
1859 rustc.arg(input_file);
1861 // Use a single thread for efficiency and a deterministic error message order
1862 rustc.arg("-Zthreads=1");
1864 // Optionally prevent default --target if specified in test compile-flags.
1865 let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target"));
1869 if self.props.force_host { &*self.config.host } else { &*self.config.target };
1871 rustc.arg(&format!("--target={}", target));
1873 self.set_revision_flags(&mut rustc);
1876 if let Some(ref incremental_dir) = self.props.incremental_dir {
1877 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1878 rustc.args(&["-Z", "incremental-verify-ich"]);
1881 if self.config.mode == CodegenUnits {
1882 rustc.args(&["-Z", "human_readable_cgu_names"]);
1886 if self.config.optimize_tests && !is_rustdoc {
1887 match self.config.mode {
1889 // If optimize-tests is true we still only want to optimize tests that actually get
1890 // executed and that don't specify their own optimization levels.
1891 // Note: aux libs don't have a pass-mode, so they won't get optimized
1892 // unless compile-flags are set in the aux file.
1893 if self.config.optimize_tests
1894 && self.props.pass_mode(&self.config) == Some(PassMode::Run)
1899 .any(|arg| arg == "-O" || arg.contains("opt-level"))
1904 DebugInfo => { /* debuginfo tests must be unoptimized */ }
1911 match self.config.mode {
1913 // If we are extracting and matching errors in the new
1914 // fashion, then you want JSON mode. Old-skool error
1915 // patterns still match the raw compiler output.
1916 if self.props.error_patterns.is_empty()
1917 && self.props.regex_error_patterns.is_empty()
1919 rustc.args(&["--error-format", "json"]);
1920 rustc.args(&["--json", "future-incompat"]);
1922 rustc.arg("-Zui-testing");
1923 rustc.arg("-Zdeduplicate-diagnostics=no");
1926 if !self.props.compile_flags.iter().any(|s| s.starts_with("--error-format")) {
1927 rustc.args(&["--error-format", "json"]);
1928 rustc.args(&["--json", "future-incompat"]);
1930 rustc.arg("-Ccodegen-units=1");
1931 // Hide line numbers to reduce churn
1932 rustc.arg("-Zui-testing");
1933 // Hide libstd sources from ui tests to make sure we generate the stderr
1934 // output that users will see.
1935 // Without this, we may be producing good diagnostics in-tree but users
1936 // will not see half the information.
1937 rustc.arg("-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX");
1938 rustc.arg("-Ztranslate-remapped-path-to-local-path=no");
1940 rustc.arg("-Zdeduplicate-diagnostics=no");
1941 // FIXME: use this for other modes too, for perf?
1942 rustc.arg("-Cstrip=debuginfo");
1949 "-Zdump-mir-exclude-pass-number",
1950 "-Zmir-pretty-relative-line-numbers=yes",
1952 if let Some(pass) = &self.props.mir_unit_test {
1953 rustc.args(&["-Zmir-opt-level=0", &format!("-Zmir-enable-passes=+{}", pass)]);
1955 rustc.arg("-Zmir-opt-level=4");
1958 let mir_dump_dir = self.get_mir_dump_dir();
1959 let _ = fs::remove_dir_all(&mir_dump_dir);
1960 create_dir_all(mir_dump_dir.as_path()).unwrap();
1961 let mut dir_opt = "-Zdump-mir-dir=".to_string();
1962 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
1963 debug!("dir_opt: {:?}", dir_opt);
1967 RunPassValgrind | Pretty | DebugInfo | Codegen | Rustdoc | RustdocJson | RunMake
1968 | CodegenUnits | JsDocTest | Assembly => {
1969 // do not use JSON output
1975 Emit::Metadata if is_rustdoc => {}
1977 rustc.args(&["--emit", "metadata"]);
1980 rustc.args(&["--emit", "llvm-ir"]);
1983 rustc.args(&["--emit", "asm"]);
1988 if self.config.target == "wasm32-unknown-unknown" || self.is_vxworks_pure_static() {
1989 // rustc.arg("-g"); // get any backtrace at all on errors
1990 } else if !self.props.no_prefer_dynamic {
1991 rustc.args(&["-C", "prefer-dynamic"]);
1996 TargetLocation::ThisFile(path) => {
1997 rustc.arg("-o").arg(path);
1999 TargetLocation::ThisDirectory(path) => {
2001 // `rustdoc` uses `-o` for the output directory.
2002 rustc.arg("-o").arg(path);
2004 rustc.arg("--out-dir").arg(path);
2009 match self.config.compare_mode {
2010 Some(CompareMode::Polonius) => {
2011 rustc.args(&["-Zpolonius"]);
2013 Some(CompareMode::Chalk) => {
2014 rustc.args(&["-Zchalk"]);
2016 Some(CompareMode::SplitDwarf) if self.config.target.contains("windows") => {
2017 rustc.args(&["-Csplit-debuginfo=unpacked", "-Zunstable-options"]);
2019 Some(CompareMode::SplitDwarf) => {
2020 rustc.args(&["-Csplit-debuginfo=unpacked"]);
2022 Some(CompareMode::SplitDwarfSingle) => {
2023 rustc.args(&["-Csplit-debuginfo=packed"]);
2028 // Add `-A unused` before `config` flags and in-test (`props`) flags, so that they can
2030 if let AllowUnused::Yes = allow_unused {
2031 rustc.args(&["-A", "unused"]);
2034 if self.props.force_host {
2035 self.maybe_add_external_args(&mut rustc, &self.config.host_rustcflags);
2037 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
2039 if let Some(ref linker) = self.config.linker {
2040 rustc.arg(format!("-Clinker={}", linker));
2045 // Use dynamic musl for tests because static doesn't allow creating dylibs
2046 if self.config.host.contains("musl") || self.is_vxworks_pure_dynamic() {
2047 rustc.arg("-Ctarget-feature=-crt-static");
2050 if let LinkToAux::Yes = link_to_aux {
2051 rustc.arg("-L").arg(self.aux_output_dir_name());
2054 rustc.args(&self.props.compile_flags);
2059 fn make_exe_name(&self) -> PathBuf {
2060 // Using a single letter here to keep the path length down for
2061 // Windows. Some test names get very long. rustc creates `rcgu`
2062 // files with the module name appended to it which can more than
2063 // double the length.
2064 let mut f = self.output_base_dir().join("a");
2065 // FIXME: This is using the host architecture exe suffix, not target!
2066 if self.config.target.contains("emscripten") {
2067 f = f.with_extra_extension("js");
2068 } else if self.config.target.contains("wasm32") {
2069 f = f.with_extra_extension("wasm");
2070 } else if self.config.target.contains("spirv") {
2071 f = f.with_extra_extension("spv");
2072 } else if !env::consts::EXE_SUFFIX.is_empty() {
2073 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2078 fn make_run_args(&self) -> ProcArgs {
2079 // If we've got another tool to run under (valgrind),
2080 // then split apart its command
2081 let mut args = self.split_maybe_args(&self.config.runtool);
2083 // If this is emscripten, then run tests under nodejs
2084 if self.config.target.contains("emscripten") {
2085 if let Some(ref p) = self.config.nodejs {
2086 args.push(p.clone());
2088 self.fatal("no NodeJS binary found (--nodejs)");
2090 // If this is otherwise wasm, then run tests under nodejs with our
2092 } else if self.config.target.contains("wasm32") {
2093 if let Some(ref p) = self.config.nodejs {
2094 args.push(p.clone());
2096 self.fatal("no NodeJS binary found (--nodejs)");
2103 .unwrap() // chop off `ui`
2105 .unwrap() // chop off `test`
2107 .unwrap(); // chop off `src`
2108 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2111 let exe_file = self.make_exe_name();
2113 // FIXME (#9639): This needs to handle non-utf8 paths
2114 args.push(exe_file.to_str().unwrap().to_owned());
2116 // Add the arguments in the run_flags directive
2117 args.extend(self.split_maybe_args(&self.props.run_flags));
2119 let prog = args.remove(0);
2120 ProcArgs { prog, args }
2123 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2128 if s.chars().all(|c| c.is_whitespace()) { None } else { Some(s.to_owned()) }
2135 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2138 // Linux and mac don't require adjusting the library search path
2140 format!("{:?}", command)
2142 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2143 // for diagnostic purposes
2144 fn lib_path_cmd_prefix(path: &str) -> String {
2145 format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
2148 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2152 fn dump_output(&self, out: &str, err: &str) {
2153 let revision = if let Some(r) = self.revision { format!("{}.", r) } else { String::new() };
2155 self.dump_output_file(out, &format!("{}out", revision));
2156 self.dump_output_file(err, &format!("{}err", revision));
2157 self.maybe_dump_to_stdout(out, err);
2160 fn dump_output_file(&self, out: &str, extension: &str) {
2161 let outfile = self.make_out_name(extension);
2162 fs::write(&outfile, out).unwrap();
2165 /// Creates a filename for output with the given extension.
2166 /// E.g., `/.../testname.revision.mode/testname.extension`.
2167 fn make_out_name(&self, extension: &str) -> PathBuf {
2168 self.output_base_name().with_extension(extension)
2171 /// Gets the directory where auxiliary files are written.
2172 /// E.g., `/.../testname.revision.mode/auxiliary/`.
2173 fn aux_output_dir_name(&self) -> PathBuf {
2174 self.output_base_dir()
2176 .with_extra_extension(self.config.mode.disambiguator())
2179 /// Generates a unique name for the test, such as `testname.revision.mode`.
2180 fn output_testname_unique(&self) -> PathBuf {
2181 output_testname_unique(self.config, self.testpaths, self.safe_revision())
2184 /// The revision, ignored for incremental compilation since it wants all revisions in
2185 /// the same directory.
2186 fn safe_revision(&self) -> Option<&str> {
2187 if self.config.mode == Incremental { None } else { self.revision }
2190 /// Gets the absolute path to the directory where all output for the given
2191 /// test/revision should reside.
2192 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2193 fn output_base_dir(&self) -> PathBuf {
2194 output_base_dir(self.config, self.testpaths, self.safe_revision())
2197 /// Gets the absolute path to the base filename used as output for the given
2199 /// E.g., `/.../relative/testname.revision.mode/testname`.
2200 fn output_base_name(&self) -> PathBuf {
2201 output_base_name(self.config, self.testpaths, self.safe_revision())
2204 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2205 if self.config.verbose {
2206 println!("------stdout------------------------------");
2207 println!("{}", out);
2208 println!("------stderr------------------------------");
2209 println!("{}", err);
2210 println!("------------------------------------------");
2214 fn error(&self, err: &str) {
2215 match self.revision {
2216 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2217 None => println!("\nerror: {}", err),
2221 fn fatal(&self, err: &str) -> ! {
2223 error!("fatal error, panic: {:?}", err);
2224 panic!("fatal error");
2227 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2229 proc_res.fatal(None, || ());
2232 fn fatal_proc_rec_with_ctx(
2236 on_failure: impl FnOnce(Self),
2239 proc_res.fatal(None, || on_failure(*self));
2242 // codegen tests (using FileCheck)
2244 fn compile_test_and_save_ir(&self) -> ProcRes {
2245 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2246 let input_file = &self.testpaths.file;
2247 let rustc = self.make_compile_args(
2255 self.compose_and_run_compiler(rustc, None)
2258 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2259 // This works with both `--emit asm` (as default output name for the assembly)
2260 // and `ptx-linker` because the latter can write output at requested location.
2261 let output_path = self.output_base_name().with_extension("s");
2263 let output_file = TargetLocation::ThisFile(output_path.clone());
2264 let input_file = &self.testpaths.file;
2266 let mut emit = Emit::None;
2267 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2268 Some("emit-asm") => {
2272 Some("ptx-linker") => {
2273 // No extra flags needed.
2276 Some(_) => self.fatal("unknown 'assembly-output' header"),
2277 None => self.fatal("missing 'assembly-output' header"),
2281 self.make_compile_args(input_file, output_file, emit, AllowUnused::No, LinkToAux::Yes);
2283 (self.compose_and_run_compiler(rustc, None), output_path)
2286 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2287 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2288 filecheck.arg("--input-file").arg(output).arg(&self.testpaths.file);
2289 // It would be more appropriate to make most of the arguments configurable through
2290 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2293 // For now, though…
2294 let prefix_for_target =
2295 if self.config.target.contains("msvc") { "MSVC" } else { "NONMSVC" };
2296 let prefixes = if let Some(rev) = self.revision {
2297 format!("CHECK,{},{}", prefix_for_target, rev)
2299 format!("CHECK,{}", prefix_for_target)
2301 if self.config.llvm_version.unwrap_or(0) >= 130000 {
2302 filecheck.args(&["--allow-unused-prefixes", "--check-prefixes", &prefixes]);
2304 filecheck.args(&["--check-prefixes", &prefixes]);
2306 self.compose_and_run(filecheck, "", None, None)
2309 fn run_codegen_test(&self) {
2310 if self.config.llvm_filecheck.is_none() {
2311 self.fatal("missing --llvm-filecheck");
2314 let proc_res = self.compile_test_and_save_ir();
2315 if !proc_res.status.success() {
2316 self.fatal_proc_rec("compilation failed!", &proc_res);
2319 let output_path = self.output_base_name().with_extension("ll");
2320 let proc_res = self.verify_with_filecheck(&output_path);
2321 if !proc_res.status.success() {
2322 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2326 fn run_assembly_test(&self) {
2327 if self.config.llvm_filecheck.is_none() {
2328 self.fatal("missing --llvm-filecheck");
2331 let (proc_res, output_path) = self.compile_test_and_save_assembly();
2332 if !proc_res.status.success() {
2333 self.fatal_proc_rec("compilation failed!", &proc_res);
2336 let proc_res = self.verify_with_filecheck(&output_path);
2337 if !proc_res.status.success() {
2338 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2342 fn charset() -> &'static str {
2343 // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset
2344 if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" }
2347 fn run_rustdoc_test(&self) {
2348 assert!(self.revision.is_none(), "revisions not relevant here");
2350 let out_dir = self.output_base_dir();
2351 let _ = fs::remove_dir_all(&out_dir);
2352 create_dir_all(&out_dir).unwrap();
2354 let proc_res = self.document(&out_dir);
2355 if !proc_res.status.success() {
2356 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2359 if self.props.check_test_line_numbers_match {
2360 self.check_rustdoc_test_option(proc_res);
2362 let root = self.config.find_rust_src_root().unwrap();
2363 let mut cmd = Command::new(&self.config.python);
2364 cmd.arg(root.join("src/etc/htmldocck.py")).arg(&out_dir).arg(&self.testpaths.file);
2365 if self.config.bless {
2368 let res = self.cmd2procres(&mut cmd);
2369 if !res.status.success() {
2370 self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| {
2371 this.compare_to_default_rustdoc(&out_dir)
2377 fn compare_to_default_rustdoc(&mut self, out_dir: &Path) {
2378 if !self.config.has_tidy {
2381 println!("info: generating a diff against nightly rustdoc");
2384 self.safe_revision().map_or("nightly".into(), |path| path.to_owned() + "-nightly");
2385 let compare_dir = output_base_dir(self.config, self.testpaths, Some(&suffix));
2386 // Don't give an error if the directory didn't already exist
2387 let _ = fs::remove_dir_all(&compare_dir);
2388 create_dir_all(&compare_dir).unwrap();
2390 // We need to create a new struct for the lifetimes on `config` to work.
2391 let new_rustdoc = TestCx {
2393 // FIXME: use beta or a user-specified rustdoc instead of
2394 // hardcoding the default toolchain
2395 rustdoc_path: Some("rustdoc".into()),
2396 // Needed for building auxiliary docs below
2397 rustc_path: "rustc".into(),
2398 ..self.config.clone()
2403 let output_file = TargetLocation::ThisDirectory(new_rustdoc.aux_output_dir_name());
2404 let mut rustc = new_rustdoc.make_compile_args(
2405 &new_rustdoc.testpaths.file,
2411 new_rustdoc.build_all_auxiliary(&mut rustc);
2413 let proc_res = new_rustdoc.document(&compare_dir);
2414 if !proc_res.status.success() {
2415 eprintln!("failed to run nightly rustdoc");
2422 "--indent-spaces", "2",
2424 "--show-warnings", "no",
2429 let tidy_dir = |dir| {
2430 for entry in walkdir::WalkDir::new(dir) {
2431 let entry = entry.expect("failed to read file");
2432 if entry.file_type().is_file()
2433 && entry.path().extension().and_then(|p| p.to_str()) == Some("html".into())
2436 Command::new("tidy").args(&tidy_args).arg(entry.path()).status().unwrap();
2437 // `tidy` returns 1 if it modified the file.
2438 assert!(status.success() || status.code() == Some(1));
2443 tidy_dir(&compare_dir);
2446 let output = Command::new("git").args(&["config", "--get", "core.pager"]).output().ok();
2447 output.and_then(|out| {
2448 if out.status.success() {
2449 Some(String::from_utf8(out.stdout).expect("invalid UTF8 in git pager"))
2456 let diff_filename = format!("build/tmp/rustdoc-compare-{}.diff", std::process::id());
2458 if !write_filtered_diff(
2462 self.config.verbose,
2463 |file_type, extension| {
2465 && (extension == Some("html".into()) || extension == Some("js".into()))
2471 match self.config.color {
2472 ColorConfig::AlwaysColor => colored::control::set_override(true),
2473 ColorConfig::NeverColor => colored::control::set_override(false),
2477 if let Some(pager) = pager {
2478 let pager = pager.trim();
2479 if self.config.verbose {
2480 eprintln!("using pager {}", pager);
2482 let output = Command::new(pager)
2483 // disable paging; we want this to be non-interactive
2485 .stdin(File::open(&diff_filename).unwrap())
2486 // Capture output and print it explicitly so it will in turn be
2487 // captured by libtest.
2490 assert!(output.status.success());
2491 println!("{}", String::from_utf8_lossy(&output.stdout));
2492 eprintln!("{}", String::from_utf8_lossy(&output.stderr));
2494 use colored::Colorize;
2495 eprintln!("warning: no pager configured, falling back to unified diff");
2497 "help: try configuring a git pager (e.g. `delta`) with `git config --global core.pager delta`"
2499 let mut out = io::stdout();
2500 let mut diff = BufReader::new(File::open(&diff_filename).unwrap());
2501 let mut line = Vec::new();
2504 match diff.read_until(b'\n', &mut line) {
2507 Err(e) => eprintln!("ERROR: {:?}", e),
2509 match String::from_utf8(line.clone()) {
2511 if line.starts_with("+") {
2512 write!(&mut out, "{}", line.green()).unwrap();
2513 } else if line.starts_with("-") {
2514 write!(&mut out, "{}", line.red()).unwrap();
2515 } else if line.starts_with("@") {
2516 write!(&mut out, "{}", line.blue()).unwrap();
2518 out.write_all(line.as_bytes()).unwrap();
2522 write!(&mut out, "{}", String::from_utf8_lossy(&line).reversed()).unwrap();
2529 fn run_rustdoc_json_test(&self) {
2530 //FIXME: Add bless option.
2532 assert!(self.revision.is_none(), "revisions not relevant here");
2534 let out_dir = self.output_base_dir();
2535 let _ = fs::remove_dir_all(&out_dir);
2536 create_dir_all(&out_dir).unwrap();
2538 let proc_res = self.document(&out_dir);
2539 if !proc_res.status.success() {
2540 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2543 let root = self.config.find_rust_src_root().unwrap();
2544 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2545 json_out.set_extension("json");
2546 let res = self.cmd2procres(
2547 Command::new(self.config.jsondocck_path.as_ref().unwrap())
2549 .arg(root.join(&out_dir))
2551 .arg(&self.testpaths.file),
2554 if !res.status.success() {
2555 self.fatal_proc_rec_with_ctx("jsondocck failed!", &res, |_| {
2556 println!("Rustdoc Output:");
2557 proc_res.print_info();
2561 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2562 json_out.set_extension("json");
2564 let res = self.cmd2procres(
2565 Command::new(self.config.jsondoclint_path.as_ref().unwrap()).arg(&json_out),
2568 if !res.status.success() {
2569 self.fatal_proc_rec("jsondoclint failed!", &res);
2573 fn get_lines<P: AsRef<Path>>(
2576 mut other_files: Option<&mut Vec<String>>,
2578 let content = fs::read_to_string(&path).unwrap();
2579 let mut ignore = false;
2583 .filter_map(|(line_nb, line)| {
2584 if (line.trim_start().starts_with("pub mod ")
2585 || line.trim_start().starts_with("mod "))
2586 && line.ends_with(';')
2588 if let Some(ref mut other_files) = other_files {
2589 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2593 let sline = line.rsplit("///").next().unwrap();
2594 let line = sline.trim_start();
2595 if line.starts_with("```") {
2611 fn check_rustdoc_test_option(&self, res: ProcRes) {
2612 let mut other_files = Vec::new();
2613 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2614 let cwd = env::current_dir().unwrap();
2619 .unwrap_or(&self.testpaths.file)
2622 .replace('\\', "/"),
2623 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2625 for other_file in other_files {
2626 let mut path = self.testpaths.file.clone();
2627 path.set_file_name(&format!("{}.rs", other_file));
2629 path.strip_prefix(&cwd).unwrap_or(&path).to_str().unwrap().replace('\\', "/"),
2630 self.get_lines(&path, None),
2635 for _ in res.stdout.split('\n').filter(|s| s.starts_with("test ")).inspect(|s| {
2636 if let Some((left, right)) = s.split_once(" - ") {
2637 let path = left.rsplit("test ").next().unwrap();
2638 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2640 let mut iter = right.split("(line ");
2650 if let Ok(pos) = v.binary_search(&line) {
2653 self.fatal_proc_rec(
2654 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2662 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2664 for (entry, v) in &files {
2666 self.fatal_proc_rec(
2668 "Not found test at line{} \"{}\":{:?}",
2669 if v.len() > 1 { "s" } else { "" },
2680 fn run_codegen_units_test(&self) {
2681 assert!(self.revision.is_none(), "revisions not relevant here");
2683 let proc_res = self.compile_test(WillExecute::No, Emit::None);
2685 if !proc_res.status.success() {
2686 self.fatal_proc_rec("compilation failed!", &proc_res);
2689 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
2691 const PREFIX: &str = "MONO_ITEM ";
2692 const CGU_MARKER: &str = "@@";
2694 let actual: Vec<MonoItem> = proc_res
2697 .filter(|line| line.starts_with(PREFIX))
2698 .map(|line| str_to_mono_item(line, true))
2701 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2703 .map(|e| str_to_mono_item(&e.msg[..], false))
2706 let mut missing = Vec::new();
2707 let mut wrong_cgus = Vec::new();
2709 for expected_item in &expected {
2710 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2712 if let Some(actual_item) = actual_item_with_same_name {
2713 if !expected_item.codegen_units.is_empty() &&
2714 // Also check for codegen units
2715 expected_item.codegen_units != actual_item.codegen_units
2717 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2720 missing.push(expected_item.string.clone());
2724 let unexpected: Vec<_> = actual
2726 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2727 .map(|acgu| acgu.string.clone())
2730 if !missing.is_empty() {
2733 println!("\nThese items should have been contained but were not:\n");
2735 for item in &missing {
2736 println!("{}", item);
2742 if !unexpected.is_empty() {
2744 let mut sorted = unexpected.clone();
2749 println!("\nThese items were contained but should not have been:\n");
2751 for item in sorted {
2752 println!("{}", item);
2758 if !wrong_cgus.is_empty() {
2759 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2760 println!("\nThe following items were assigned to wrong codegen units:\n");
2762 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2763 println!("{}", expected_item.name);
2764 println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units));
2765 println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units));
2770 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2774 #[derive(Clone, Eq, PartialEq)]
2777 codegen_units: HashSet<String>,
2781 // [MONO_ITEM] name [@@ (cgu)+]
2782 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2783 let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() };
2785 let full_string = format!("{}{}", PREFIX, s);
2787 let parts: Vec<&str> =
2788 s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect();
2790 let name = parts[0].trim();
2792 let cgus = if parts.len() > 1 {
2793 let cgus_str = parts[1];
2798 .filter(|s| !s.is_empty())
2800 if cgu_has_crate_disambiguator {
2801 remove_crate_disambiguators_from_set_of_cgu_names(s)
2811 MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string }
2814 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2815 let mut cgus: Vec<_> = cgus.iter().collect();
2818 let mut string = String::new();
2820 string.push_str(&cgu[..]);
2821 string.push_str(" ");
2827 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2828 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2829 // remove all crate-disambiguators.
2830 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2832 static ref RE: Regex =
2833 Regex::new(r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?")
2838 RE.captures(cgu).unwrap_or_else(|| panic!("invalid cgu name encountered: {}", cgu));
2840 let mut new_name = cgu.to_owned();
2842 if let Some(d2) = captures.name("d2") {
2843 new_name.replace_range(d2.start()..d2.end(), "");
2846 let d1 = captures.name("d1").unwrap();
2847 new_name.replace_range(d1.start()..d1.end(), "");
2852 // The name of merged CGUs is constructed as the names of the original
2853 // CGUs joined with "--". This function splits such composite CGU names
2854 // and handles each component individually.
2855 fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String {
2857 .map(|cgu| remove_crate_disambiguator_from_cgu(cgu))
2858 .collect::<Vec<_>>()
2863 fn init_incremental_test(&self) {
2864 // (See `run_incremental_test` for an overview of how incremental tests work.)
2866 // Before any of the revisions have executed, create the
2867 // incremental workproduct directory. Delete any old
2868 // incremental work products that may be there from prior
2870 let incremental_dir = self.props.incremental_dir.as_ref().unwrap();
2871 if incremental_dir.exists() {
2872 // Canonicalizing the path will convert it to the //?/ format
2873 // on Windows, which enables paths longer than 260 character
2874 let canonicalized = incremental_dir.canonicalize().unwrap();
2875 fs::remove_dir_all(canonicalized).unwrap();
2877 fs::create_dir_all(&incremental_dir).unwrap();
2879 if self.config.verbose {
2880 println!("init_incremental_test: incremental_dir={}", incremental_dir.display());
2884 fn run_incremental_test(&self) {
2885 // Basic plan for a test incremental/foo/bar.rs:
2886 // - load list of revisions rpass1, cfail2, rpass3
2887 // - each should begin with `rpass`, `cfail`, or `rfail`
2888 // - if `rpass`, expect compile and execution to succeed
2889 // - if `cfail`, expect compilation to fail
2890 // - if `rfail`, expect execution to fail
2891 // - create a directory build/foo/bar.incremental
2892 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1
2893 // - because name of revision starts with "rpass", expect success
2894 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2
2895 // - because name of revision starts with "cfail", expect an error
2896 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2897 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3
2898 // - because name of revision starts with "rpass", expect success
2899 // - execute build/foo/bar.exe and save output
2901 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2902 // to #[rustc_dirty] and clean tests I guess
2904 let revision = self.revision.expect("incremental tests require a list of revisions");
2906 // Incremental workproduct directory should have already been created.
2907 let incremental_dir = self.props.incremental_dir.as_ref().unwrap();
2908 assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir");
2910 if self.config.verbose {
2911 print!("revision={:?} props={:#?}", revision, self.props);
2914 if revision.starts_with("rpass") {
2915 if self.props.should_ice {
2916 self.fatal("can only use should-ice in cfail tests");
2918 self.run_rpass_test();
2919 } else if revision.starts_with("rfail") {
2920 if self.props.should_ice {
2921 self.fatal("can only use should-ice in cfail tests");
2923 self.run_rfail_test();
2924 } else if revision.starts_with("cfail") {
2925 self.run_cfail_test();
2927 self.fatal("revision name must begin with rpass, rfail, or cfail");
2931 fn run_rmake_test(&self) {
2932 let cwd = env::current_dir().unwrap();
2933 let src_root = self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
2934 let src_root = cwd.join(&src_root);
2936 let tmpdir = cwd.join(self.output_base_name());
2937 if tmpdir.exists() {
2938 self.aggressive_rm_rf(&tmpdir).unwrap();
2940 create_dir_all(&tmpdir).unwrap();
2942 let host = &self.config.host;
2943 let make = if host.contains("dragonfly")
2944 || host.contains("freebsd")
2945 || host.contains("netbsd")
2946 || host.contains("openbsd")
2953 let mut cmd = Command::new(make);
2954 cmd.current_dir(&self.testpaths.file)
2955 .stdout(Stdio::piped())
2956 .stderr(Stdio::piped())
2957 .env("TARGET", &self.config.target)
2958 .env("PYTHON", &self.config.python)
2960 .env("RUST_BUILD_STAGE", &self.config.stage_id)
2961 .env("RUSTC", cwd.join(&self.config.rustc_path))
2962 .env("TMPDIR", &tmpdir)
2963 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
2964 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
2965 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
2966 .env("LLVM_COMPONENTS", &self.config.llvm_components)
2967 // We for sure don't want these tests to run in parallel, so make
2968 // sure they don't have access to these vars if we run via `make`
2970 .env_remove("MAKEFLAGS")
2971 .env_remove("MFLAGS")
2972 .env_remove("CARGO_MAKEFLAGS");
2974 if let Some(ref rustdoc) = self.config.rustdoc_path {
2975 cmd.env("RUSTDOC", cwd.join(rustdoc));
2978 if let Some(ref rust_demangler) = self.config.rust_demangler_path {
2979 cmd.env("RUST_DEMANGLER", cwd.join(rust_demangler));
2982 if let Some(ref node) = self.config.nodejs {
2983 cmd.env("NODE", node);
2986 if let Some(ref linker) = self.config.linker {
2987 cmd.env("RUSTC_LINKER", linker);
2990 if let Some(ref clang) = self.config.run_clang_based_tests_with {
2991 cmd.env("CLANG", clang);
2994 if let Some(ref filecheck) = self.config.llvm_filecheck {
2995 cmd.env("LLVM_FILECHECK", filecheck);
2998 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
2999 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
3002 if let Some(ref remote_test_client) = self.config.remote_test_client {
3003 cmd.env("REMOTE_TEST_CLIENT", remote_test_client);
3006 // We don't want RUSTFLAGS set from the outside to interfere with
3007 // compiler flags set in the test cases:
3008 cmd.env_remove("RUSTFLAGS");
3010 // Use dynamic musl for tests because static doesn't allow creating dylibs
3011 if self.config.host.contains("musl") {
3012 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1");
3015 if self.config.bless {
3016 cmd.env("RUSTC_BLESS_TEST", "--bless");
3017 // Assume this option is active if the environment variable is "defined", with _any_ value.
3018 // As an example, a `Makefile` can use this option by:
3020 // ifdef RUSTC_BLESS_TEST
3021 // cp "$(TMPDIR)"/actual_something.ext expected_something.ext
3023 // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext
3027 if self.config.target.contains("msvc") && self.config.cc != "" {
3028 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
3029 // and that `lib.exe` lives next to it.
3030 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
3032 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
3033 // a path and instead passes `C:\msys64\foo`, so convert all
3034 // `/`-arguments to MSVC here to `-` arguments.
3039 .map(|s| s.replace("/", "-"))
3040 .collect::<Vec<_>>()
3046 .map(|s| s.replace("/", "-"))
3047 .collect::<Vec<_>>()
3050 cmd.env("IS_MSVC", "1")
3051 .env("IS_WINDOWS", "1")
3052 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
3053 .env("CC", format!("'{}' {}", self.config.cc, cflags))
3054 .env("CXX", format!("'{}' {}", &self.config.cxx, cxxflags));
3056 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
3057 .env("CXX", format!("{} {}", self.config.cxx, self.config.cxxflags))
3058 .env("AR", &self.config.ar);
3060 if self.config.target.contains("windows") {
3061 cmd.env("IS_WINDOWS", "1");
3065 let output = self.read2_abbreviated(cmd.spawn().expect("failed to spawn `make`"));
3066 if !output.status.success() {
3068 status: output.status,
3069 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
3070 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
3071 cmdline: format!("{:?}", cmd),
3073 self.fatal_proc_rec("make failed", &res);
3077 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
3078 for e in path.read_dir()? {
3080 let path = entry.path();
3081 if entry.file_type()?.is_dir() {
3082 self.aggressive_rm_rf(&path)?;
3084 // Remove readonly files as well on windows (by default we can't)
3085 fs::remove_file(&path).or_else(|e| {
3086 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
3087 let mut meta = entry.metadata()?.permissions();
3088 meta.set_readonly(false);
3089 fs::set_permissions(&path, meta)?;
3090 fs::remove_file(&path)
3097 fs::remove_dir(path)
3100 fn run_js_doc_test(&self) {
3101 if let Some(nodejs) = &self.config.nodejs {
3102 let out_dir = self.output_base_dir();
3104 self.document(&out_dir);
3106 let root = self.config.find_rust_src_root().unwrap();
3108 self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem");
3109 let res = self.cmd2procres(
3110 Command::new(&nodejs)
3111 .arg(root.join("src/tools/rustdoc-js/tester.js"))
3112 .arg("--doc-folder")
3114 .arg("--crate-name")
3115 .arg(file_stem.replace("-", "_"))
3117 .arg(self.testpaths.file.with_extension("js")),
3119 if !res.status.success() {
3120 self.fatal_proc_rec("rustdoc-js test failed!", &res);
3123 self.fatal("no nodeJS");
3127 fn load_compare_outputs(
3130 output_kind: TestOutput,
3131 explicit_format: bool,
3133 let stderr_bits = format!("{}bit.stderr", self.config.get_pointer_width());
3134 let (stderr_kind, stdout_kind) = match output_kind {
3135 TestOutput::Compile => (
3137 if self.props.stderr_per_bitwidth { &stderr_bits } else { UI_STDERR }
3141 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT),
3144 let expected_stderr = self.load_expected_output(stderr_kind);
3145 let expected_stdout = self.load_expected_output(stdout_kind);
3147 let normalized_stdout = match output_kind {
3148 TestOutput::Run if self.config.remote_test_client.is_some() => {
3149 // When tests are run using the remote-test-client, the string
3150 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
3151 // is printed to stdout by the client and then captured in the ProcRes,
3152 // so it needs to be removed when comparing the run-pass test execution output
3154 static ref REMOTE_TEST_RE: Regex = Regex::new(
3155 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-.]+)+\", waiting for result\n"
3161 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3166 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3169 let stderr = if explicit_format {
3170 proc_res.stderr.clone()
3172 json::extract_rendered(&proc_res.stderr)
3175 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3178 TestOutput::Compile => {
3179 if !self.props.dont_check_compiler_stdout {
3181 self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3183 if !self.props.dont_check_compiler_stderr {
3185 self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3188 TestOutput::Run => {
3189 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3190 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3196 fn run_ui_test(&self) {
3197 if let Some(FailMode::Build) = self.props.fail_mode {
3198 // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck).
3199 let pm = Some(PassMode::Check);
3200 let proc_res = self.compile_test_general(WillExecute::No, Emit::Metadata, pm);
3201 self.check_if_test_should_compile(&proc_res, pm);
3204 let pm = self.pass_mode();
3205 let should_run = self.should_run(pm);
3206 let emit_metadata = self.should_emit_metadata(pm);
3207 let proc_res = self.compile_test(should_run, emit_metadata);
3208 self.check_if_test_should_compile(&proc_res, pm);
3210 // if the user specified a format in the ui test
3211 // print the output to the stderr file, otherwise extract
3212 // the rendered error messages from json and print them
3213 let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format"));
3215 let expected_fixed = self.load_expected_output(UI_FIXED);
3217 self.check_and_prune_duplicate_outputs(&proc_res, &[], &[]);
3219 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3220 let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr);
3222 if self.config.compare_mode.is_some() {
3223 // don't test rustfix with nll right now
3224 } else if self.config.rustfix_coverage {
3225 // Find out which tests have `MachineApplicable` suggestions but are missing
3226 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3228 // This will return an empty `Vec` in case the executed test file has a
3229 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3230 let suggestions = get_suggestions_from_json(
3233 Filter::MachineApplicableOnly,
3235 .unwrap_or_default();
3236 if !suggestions.is_empty()
3237 && !self.props.run_rustfix
3238 && !self.props.rustfix_only_machine_applicable
3240 let mut coverage_file_path = self.config.build_base.clone();
3241 coverage_file_path.push("rustfix_missing_coverage.txt");
3242 debug!("coverage_file_path: {}", coverage_file_path.display());
3244 let mut file = OpenOptions::new()
3247 .open(coverage_file_path.as_path())
3248 .expect("could not create or open file");
3250 if writeln!(file, "{}", self.testpaths.file.display()).is_err() {
3251 panic!("couldn't write to {}", coverage_file_path.display());
3254 } else if self.props.run_rustfix {
3255 // Apply suggestions from rustc to the code itself
3256 let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap();
3257 let suggestions = get_suggestions_from_json(
3260 if self.props.rustfix_only_machine_applicable {
3261 Filter::MachineApplicableOnly
3267 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|e| {
3269 "failed to apply suggestions for {:?} with rustfix: {}",
3270 self.testpaths.file, e
3274 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3275 } else if !expected_fixed.is_empty() {
3277 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3283 println!("To update references, rerun the tests and pass the `--bless` flag");
3284 let relative_path_to_file =
3285 self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap());
3287 "To only update this specific test, also pass `--test-args {}`",
3288 relative_path_to_file.display(),
3290 self.fatal_proc_rec(
3291 &format!("{} errors occurred comparing output.", errors),
3296 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3298 if let WillExecute::Yes = should_run {
3299 let proc_res = self.exec_compiled_test();
3300 let run_output_errors = if self.props.check_run_results {
3301 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3305 if run_output_errors > 0 {
3306 self.fatal_proc_rec(
3307 &format!("{} errors occurred comparing run output.", run_output_errors),
3311 if self.should_run_successfully(pm) {
3312 if !proc_res.status.success() {
3313 self.fatal_proc_rec("test run failed!", &proc_res);
3315 } else if proc_res.status.success() {
3316 self.fatal_proc_rec("test run succeeded!", &proc_res);
3319 if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty()
3321 // "// error-pattern" comments
3322 let output_to_check = self.get_output(&proc_res);
3323 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
3328 "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3329 proc_res.status={:?} props.error_patterns={:?}",
3331 self.config.compare_mode,
3334 self.props.error_patterns
3336 if !explicit && self.config.compare_mode.is_none() {
3337 let check_patterns = should_run == WillExecute::No
3338 && (!self.props.error_patterns.is_empty()
3339 || !self.props.regex_error_patterns.is_empty());
3341 let check_annotations = !check_patterns || !expected_errors.is_empty();
3344 // "// error-pattern" comments
3345 let output_to_check = self.get_output(&proc_res);
3346 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
3349 if check_annotations {
3350 // "//~ERROR comments"
3351 self.check_expected_errors(expected_errors, &proc_res);
3355 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3356 // And finally, compile the fixed code and make sure it both
3357 // succeeds and has no diagnostics.
3358 let rustc = self.make_compile_args(
3359 &self.testpaths.file.with_extension(UI_FIXED),
3360 TargetLocation::ThisFile(self.make_exe_name()),
3365 let res = self.compose_and_run_compiler(rustc, None);
3366 if !res.status.success() {
3367 self.fatal_proc_rec("failed to compile fixed code", &res);
3369 if !res.stderr.is_empty()
3370 && !self.props.rustfix_only_machine_applicable
3371 && !json::rustfix_diagnostics_only(&res.stderr).is_empty()
3373 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3378 fn run_mir_opt_test(&self) {
3379 let pm = self.pass_mode();
3380 let should_run = self.should_run(pm);
3381 let emit_metadata = self.should_emit_metadata(pm);
3382 let proc_res = self.compile_test(should_run, emit_metadata);
3384 if !proc_res.status.success() {
3385 self.fatal_proc_rec("compilation failed!", &proc_res);
3388 self.check_mir_dump();
3390 if let WillExecute::Yes = should_run {
3391 let proc_res = self.exec_compiled_test();
3393 if !proc_res.status.success() {
3394 self.fatal_proc_rec("test run failed!", &proc_res);
3399 fn check_mir_dump(&self) {
3400 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3402 let test_dir = self.testpaths.file.parent().unwrap();
3404 self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace("-", "_");
3406 let mut bit_width = String::new();
3407 if test_file_contents.lines().any(|l| l == "// EMIT_MIR_FOR_EACH_BIT_WIDTH") {
3408 bit_width = format!(".{}bit", self.config.get_pointer_width());
3411 if self.config.bless {
3413 glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, bit_width)).unwrap()
3415 std::fs::remove_file(e.unwrap()).unwrap();
3418 glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, bit_width)).unwrap()
3420 std::fs::remove_file(e.unwrap()).unwrap();
3424 let files = miropt_test_tools::files_for_miropt_test(
3425 &self.testpaths.file,
3426 self.config.get_pointer_width(),
3429 for miropt_test_tools::MiroptTestFiles { from_file, to_file, expected_file } in files {
3430 let dumped_string = if let Some(after) = to_file {
3431 self.diff_mir_files(from_file.into(), after.into())
3433 let mut output_file = PathBuf::new();
3434 output_file.push(self.get_mir_dump_dir());
3435 output_file.push(&from_file);
3437 "comparing the contents of: {} with {}",
3438 output_file.display(),
3439 expected_file.display()
3441 if !output_file.exists() {
3443 "Output file `{}` from test does not exist, available files are in `{}`",
3444 output_file.display(),
3445 output_file.parent().unwrap().display()
3448 self.check_mir_test_timestamp(&from_file, &output_file);
3449 let dumped_string = fs::read_to_string(&output_file).unwrap();
3450 self.normalize_output(&dumped_string, &[])
3453 if self.config.bless {
3454 let _ = std::fs::remove_file(&expected_file);
3455 std::fs::write(expected_file, dumped_string.as_bytes()).unwrap();
3457 if !expected_file.exists() {
3458 panic!("Output file `{}` from test does not exist", expected_file.display());
3460 let expected_string = fs::read_to_string(&expected_file).unwrap();
3461 if dumped_string != expected_string {
3462 print!("{}", write_diff(&expected_string, &dumped_string, 3));
3464 "Actual MIR output differs from expected MIR output {}",
3465 expected_file.display()
3472 fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String {
3473 let to_full_path = |path: PathBuf| {
3474 let full = self.get_mir_dump_dir().join(&path);
3477 "the mir dump file for {} does not exist (requested in {})",
3479 self.testpaths.file.display(),
3484 let before = to_full_path(before);
3485 let after = to_full_path(after);
3486 debug!("comparing the contents of: {} with {}", before.display(), after.display());
3487 let before = fs::read_to_string(before).unwrap();
3488 let after = fs::read_to_string(after).unwrap();
3489 let before = self.normalize_output(&before, &[]);
3490 let after = self.normalize_output(&after, &[]);
3491 let mut dumped_string = String::new();
3492 for result in diff::lines(&before, &after) {
3493 use std::fmt::Write;
3495 diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(),
3496 diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(),
3497 diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(),
3503 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3504 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3505 let source_file = &self.testpaths.file;
3506 let output_time = t(output_file);
3507 let source_time = t(source_file);
3508 if source_time > output_time {
3509 debug!("source file time: {:?} output file time: {:?}", source_time, output_time);
3511 "test source file `{}` is newer than potentially stale output file `{}`.",
3512 source_file.display(),
3518 fn get_mir_dump_dir(&self) -> PathBuf {
3519 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3520 debug!("input_file: {:?}", self.testpaths.file);
3521 mir_dump_dir.push(&self.testpaths.relative_dir);
3522 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3526 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3527 let cflags = self.props.compile_flags.join(" ");
3528 let json = cflags.contains("--error-format json")
3529 || cflags.contains("--error-format pretty-json")
3530 || cflags.contains("--error-format=json")
3531 || cflags.contains("--error-format=pretty-json")
3532 || cflags.contains("--output-format json")
3533 || cflags.contains("--output-format=json");
3535 let mut normalized = output.to_string();
3537 let mut normalize_path = |from: &Path, to: &str| {
3538 let mut from = from.display().to_string();
3540 from = from.replace("\\", "\\\\");
3542 normalized = normalized.replace(&from, to);
3545 let parent_dir = self.testpaths.file.parent().unwrap();
3546 normalize_path(parent_dir, "$DIR");
3548 let source_bases = &[
3549 // Source base on the current filesystem (calculated as parent of `src/test/$suite`):
3550 Some(self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap().into()),
3551 // Source base on the sysroot (from the src components downloaded by `download-rustc`):
3552 Some(self.config.sysroot_base.join("lib").join("rustlib").join("src").join("rust")),
3553 // Virtual `/rustc/$sha` remapped paths (if `remap-debuginfo` is enabled):
3554 option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR").map(PathBuf::from),
3555 // Virtual `/rustc/$sha` coming from download-rustc:
3556 std::env::var_os("FAKE_DOWNLOAD_RUSTC_PREFIX").map(PathBuf::from),
3557 // Tests using -Zsimulate-remapped-rust-src-base should use this fake path
3558 Some("/rustc/FAKE_PREFIX".into()),
3560 for base_dir in source_bases {
3561 if let Some(base_dir) = base_dir {
3562 // Paths into the libstd/libcore
3563 normalize_path(&base_dir.join("library"), "$SRC_DIR");
3564 // `ui-fulldeps` tests can show paths to the compiler source when testing macros from
3566 // eg. /home/user/rust/compiler
3567 normalize_path(&base_dir.join("compiler"), "$COMPILER_DIR");
3571 // Paths into the build directory
3572 let test_build_dir = &self.config.build_base;
3573 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3575 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3576 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3577 // eg. /home/user/rust/build
3578 normalize_path(parent_build_dir, "$BUILD_DIR");
3580 // Paths into lib directory.
3581 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3584 // escaped newlines in json strings should be readable
3585 // in the stderr files. There's no point int being correct,
3586 // since only humans process the stderr files.
3587 // Thus we just turn escaped newlines back into newlines.
3588 normalized = normalized.replace("\\n", "\n");
3591 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3592 // with placeholders as we do not want tests needing updated when compiler source code
3594 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3596 static ref SRC_DIR_RE: Regex =
3597 Regex::new("SRC_DIR(.+):\\d+:\\d+(: \\d+:\\d+)?").unwrap();
3600 normalized = SRC_DIR_RE.replace_all(&normalized, "SRC_DIR$1:LL:COL").into_owned();
3602 normalized = Self::normalize_platform_differences(&normalized);
3603 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3605 // Remove test annotations like `//~ ERROR text` from the output,
3606 // since they duplicate actual errors and make the output hard to read.
3607 // This mirrors the regex in src/tools/tidy/src/style.rs, please update
3608 // both if either are changed.
3610 static ref ANNOTATION_RE: Regex = Regex::new("\\s*//(\\[.*\\])?~.*").unwrap();
3613 normalized = ANNOTATION_RE.replace_all(&normalized, "").into_owned();
3615 // This code normalizes various hashes in v0 symbol mangling that is
3616 // emitted in the ui and mir-opt tests.
3618 static ref V0_CRATE_HASH_PREFIX_RE: Regex =
3619 Regex::new(r"_R.*?Cs[0-9a-zA-Z]+_").unwrap();
3620 static ref V0_CRATE_HASH_RE: Regex = Regex::new(r"Cs[0-9a-zA-Z]+_").unwrap();
3623 const V0_CRATE_HASH_PLACEHOLDER: &str = r"CsCRATE_HASH_";
3624 if V0_CRATE_HASH_PREFIX_RE.is_match(&normalized) {
3625 // Normalize crate hash
3627 V0_CRATE_HASH_RE.replace_all(&normalized, V0_CRATE_HASH_PLACEHOLDER).into_owned();
3631 static ref V0_BACK_REF_PREFIX_RE: Regex = Regex::new(r"\(_R.*?B[0-9a-zA-Z]_").unwrap();
3632 static ref V0_BACK_REF_RE: Regex = Regex::new(r"B[0-9a-zA-Z]_").unwrap();
3635 const V0_BACK_REF_PLACEHOLDER: &str = r"B<REF>_";
3636 if V0_BACK_REF_PREFIX_RE.is_match(&normalized) {
3637 // Normalize back references (see RFC 2603)
3639 V0_BACK_REF_RE.replace_all(&normalized, V0_BACK_REF_PLACEHOLDER).into_owned();
3642 // Custom normalization rules
3643 for rule in custom_rules {
3644 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3645 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3650 /// Normalize output differences across platforms. Generally changes Windows output to be more
3653 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3655 fn normalize_platform_differences(output: &str) -> String {
3657 /// Used to find Windows paths.
3659 /// It's not possible to detect paths in the error messages generally, but this is a
3660 /// decent enough heuristic.
3661 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3663 # Match paths that don't include spaces.
3664 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3666 # If the path starts with a well-known root, then allow spaces.
3667 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3672 let output = output.replace(r"\\", r"\");
3675 .replace_all(&output, |caps: &Captures<'_>| {
3676 println!("{}", &caps[0]);
3677 caps[0].replace(r"\", "/")
3679 .replace("\r\n", "\n")
3682 fn expected_output_path(&self, kind: &str) -> PathBuf {
3684 expected_output_path(&self.testpaths, self.revision, &self.config.compare_mode, kind);
3687 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3688 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3693 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3699 fn load_expected_output(&self, kind: &str) -> String {
3700 let path = self.expected_output_path(kind);
3702 match self.load_expected_output_from_path(&path) {
3704 Err(x) => self.fatal(&x),
3711 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3712 fs::read_to_string(path).map_err(|err| {
3713 format!("failed to load expected output from `{}`: {}", path.display(), err)
3717 fn delete_file(&self, file: &PathBuf) {
3719 // Deleting a nonexistent file would error.
3722 if let Err(e) = fs::remove_file(file) {
3723 self.fatal(&format!("failed to delete `{}`: {}", file.display(), e,));
3727 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3728 if actual == expected {
3732 if !self.config.bless {
3733 if expected.is_empty() {
3734 println!("normalized {}:\n{}\n", kind, actual);
3736 println!("diff of {}:\n", kind);
3737 print!("{}", write_diff(expected, actual, 3));
3741 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3742 let output_file = self
3744 .with_extra_extension(self.revision.unwrap_or(""))
3745 .with_extra_extension(mode)
3746 .with_extra_extension(kind);
3748 let mut files = vec![output_file];
3749 if self.config.bless {
3750 // Delete non-revision .stderr/.stdout file if revisions are used.
3751 // Without this, we'd just generate the new files and leave the old files around.
3752 if self.revision.is_some() {
3754 expected_output_path(self.testpaths, None, &self.config.compare_mode, kind);
3755 self.delete_file(&old);
3757 files.push(expected_output_path(
3760 &self.config.compare_mode,
3765 for output_file in &files {
3766 if actual.is_empty() {
3767 self.delete_file(output_file);
3768 } else if let Err(err) = fs::write(&output_file, &actual) {
3769 self.fatal(&format!(
3770 "failed to write {} to `{}`: {}",
3772 output_file.display(),
3778 println!("\nThe actual {0} differed from the expected {0}.", kind);
3779 for output_file in files {
3780 println!("Actual {} saved to {}", kind, output_file.display());
3782 if self.config.bless { 0 } else { 1 }
3785 fn check_and_prune_duplicate_outputs(
3788 modes: &[CompareMode],
3789 require_same_modes: &[CompareMode],
3791 for kind in UI_EXTENSIONS {
3792 let canon_comparison_path =
3793 expected_output_path(&self.testpaths, self.revision, &None, kind);
3795 let canon = match self.load_expected_output_from_path(&canon_comparison_path) {
3799 let bless = self.config.bless;
3800 let check_and_prune_duplicate_outputs = |mode: &CompareMode, require_same: bool| {
3802 expected_output_path(&self.testpaths, self.revision, &Some(mode.clone()), kind);
3804 // If there is no output, there is nothing to do
3805 let examined_content = match self.load_expected_output_from_path(&examined_path) {
3806 Ok(content) => content,
3810 let is_duplicate = canon == examined_content;
3812 match (bless, require_same, is_duplicate) {
3813 // If we're blessing and the output is the same, then delete the file.
3814 (true, _, true) => {
3815 self.delete_file(&examined_path);
3817 // If we want them to be the same, but they are different, then error.
3818 // We do this wether we bless or not
3819 (_, true, false) => {
3820 self.fatal_proc_rec(
3821 &format!("`{}` should not have different output from base test!", kind),
3829 check_and_prune_duplicate_outputs(mode, false);
3831 for mode in require_same_modes {
3832 check_and_prune_duplicate_outputs(mode, true);
3837 fn create_stamp(&self) {
3838 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3839 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3848 pub struct ProcRes {
3856 pub fn print_info(&self) {
3857 fn render(name: &str, contents: &str) -> String {
3858 let contents = json::extract_rendered(contents);
3859 let contents = contents.trim();
3860 if contents.is_empty() {
3861 format!("{name}: none")
3865 --- {name} -------------------------------\n\
3867 ------------------------------------------",
3873 "status: {}\ncommand: {}\n{}\n{}\n",
3876 render("stdout", &self.stdout),
3877 render("stderr", &self.stderr),
3881 pub fn fatal(&self, err: Option<&str>, on_failure: impl FnOnce()) -> ! {
3882 if let Some(e) = err {
3883 println!("\nerror: {}", e);
3887 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3888 // compiletest, which is unnecessary noise.
3889 std::panic::resume_unwind(Box::new(()));
3894 enum TargetLocation {
3896 ThisDirectory(PathBuf),