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);
120 if props.incremental {
121 props.incremental_dir = Some(incremental_dir(&config, testpaths));
124 let cx = TestCx { config: &config, props: &props, testpaths, revision };
125 create_dir_all(&cx.output_base_dir()).unwrap();
126 if props.incremental {
127 cx.init_incremental_test();
130 if config.mode == Incremental {
131 // Incremental tests are special because they cannot be run in
133 assert!(!props.revisions.is_empty(), "Incremental tests require revisions.");
134 for revision in &props.revisions {
135 let mut revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
136 revision_props.incremental_dir = props.incremental_dir.clone();
137 let rev_cx = TestCx {
139 props: &revision_props,
141 revision: Some(revision),
143 rev_cx.run_revision();
152 pub fn compute_stamp_hash(config: &Config) -> String {
153 let mut hash = DefaultHasher::new();
154 config.stage_id.hash(&mut hash);
155 config.run.hash(&mut hash);
157 match config.debugger {
158 Some(Debugger::Cdb) => {
159 config.cdb.hash(&mut hash);
162 Some(Debugger::Gdb) => {
163 config.gdb.hash(&mut hash);
164 env::var_os("PATH").hash(&mut hash);
165 env::var_os("PYTHONPATH").hash(&mut hash);
168 Some(Debugger::Lldb) => {
169 config.python.hash(&mut hash);
170 config.lldb_python_dir.hash(&mut hash);
171 env::var_os("PATH").hash(&mut hash);
172 env::var_os("PYTHONPATH").hash(&mut hash);
178 if let Ui = config.mode {
179 config.force_pass_mode.hash(&mut hash);
182 format!("{:x}", hash.finish())
185 #[derive(Copy, Clone)]
186 struct TestCx<'test> {
187 config: &'test Config,
188 props: &'test TestProps,
189 testpaths: &'test TestPaths,
190 revision: Option<&'test str>,
203 /// Will this test be executed? Should we use `make_exe_name`?
204 #[derive(Copy, Clone, PartialEq)]
211 /// What value should be passed to `--emit`?
212 #[derive(Copy, Clone)]
220 impl<'test> TestCx<'test> {
221 /// Code executed for each revision in turn (or, if there are no
222 /// revisions, exactly once, with revision == None).
223 fn run_revision(&self) {
224 if self.props.should_ice && self.config.mode != Incremental {
225 self.fatal("cannot use should-ice in a test that is not cfail");
227 match self.config.mode {
228 RunPassValgrind => self.run_valgrind_test(),
229 Pretty => self.run_pretty_test(),
230 DebugInfo => self.run_debuginfo_test(),
231 Codegen => self.run_codegen_test(),
232 Rustdoc => self.run_rustdoc_test(),
233 RustdocJson => self.run_rustdoc_json_test(),
234 CodegenUnits => self.run_codegen_units_test(),
235 Incremental => self.run_incremental_test(),
236 RunMake => self.run_rmake_test(),
237 Ui => self.run_ui_test(),
238 MirOpt => self.run_mir_opt_test(),
239 Assembly => self.run_assembly_test(),
240 JsDocTest => self.run_js_doc_test(),
244 fn pass_mode(&self) -> Option<PassMode> {
245 self.props.pass_mode(self.config)
248 fn should_run(&self, pm: Option<PassMode>) -> WillExecute {
249 let test_should_run = match self.config.mode {
250 Ui if pm == Some(PassMode::Run) || self.props.fail_mode == Some(FailMode::Run) => true,
251 MirOpt if pm == Some(PassMode::Run) => true,
252 Ui | MirOpt => false,
253 mode => panic!("unimplemented for mode {:?}", mode),
255 if test_should_run { self.run_if_enabled() } else { WillExecute::No }
258 fn run_if_enabled(&self) -> WillExecute {
259 if self.config.run_enabled() { WillExecute::Yes } else { WillExecute::Disabled }
262 fn should_run_successfully(&self, pm: Option<PassMode>) -> bool {
263 match self.config.mode {
264 Ui | MirOpt => pm == Some(PassMode::Run),
265 mode => panic!("unimplemented for mode {:?}", mode),
269 fn should_compile_successfully(&self, pm: Option<PassMode>) -> bool {
270 match self.config.mode {
272 Ui => pm.is_some() || self.props.fail_mode > Some(FailMode::Build),
275 self.revision.expect("incremental tests require a list of revisions");
276 if revision.starts_with("rpass") || revision.starts_with("rfail") {
278 } else if revision.starts_with("cfail") {
279 // FIXME: would be nice if incremental revs could start with "cpass"
282 panic!("revision name must begin with rpass, rfail, or cfail");
285 mode => panic!("unimplemented for mode {:?}", mode),
289 fn check_if_test_should_compile(&self, proc_res: &ProcRes, pm: Option<PassMode>) {
290 if self.should_compile_successfully(pm) {
291 if !proc_res.status.success() {
292 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
295 if proc_res.status.success() {
297 &format!("{} test compiled successfully!", self.config.mode)[..],
302 self.check_correct_failure_status(proc_res);
306 fn run_cfail_test(&self) {
307 let pm = self.pass_mode();
308 let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm));
309 self.check_if_test_should_compile(&proc_res, pm);
310 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
312 let output_to_check = self.get_output(&proc_res);
313 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
314 if !expected_errors.is_empty() {
315 if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty()
317 self.fatal("both error pattern and expected errors specified");
319 self.check_expected_errors(expected_errors, &proc_res);
321 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
323 if self.props.should_ice {
324 match proc_res.status.code() {
326 _ => self.fatal("expected ICE"),
330 self.check_forbid_output(&output_to_check, &proc_res);
333 fn run_rfail_test(&self) {
334 let pm = self.pass_mode();
335 let should_run = self.run_if_enabled();
336 let proc_res = self.compile_test(should_run, self.should_emit_metadata(pm));
338 if !proc_res.status.success() {
339 self.fatal_proc_rec("compilation failed!", &proc_res);
342 if let WillExecute::Disabled = should_run {
346 let proc_res = self.exec_compiled_test();
348 // The value our Makefile configures valgrind to return on failure
349 const VALGRIND_ERR: i32 = 100;
350 if proc_res.status.code() == Some(VALGRIND_ERR) {
351 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
354 let output_to_check = self.get_output(&proc_res);
355 self.check_correct_failure_status(&proc_res);
356 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
359 fn get_output(&self, proc_res: &ProcRes) -> String {
360 if self.props.check_stdout {
361 format!("{}{}", proc_res.stdout, proc_res.stderr)
363 proc_res.stderr.clone()
367 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
368 let expected_status = Some(self.props.failure_status);
369 let received_status = proc_res.status.code();
371 if expected_status != received_status {
374 "Error: expected failure status ({:?}) but received status {:?}.",
375 expected_status, received_status
382 fn run_rpass_test(&self) {
383 let emit_metadata = self.should_emit_metadata(self.pass_mode());
384 let should_run = self.run_if_enabled();
385 let proc_res = self.compile_test(should_run, emit_metadata);
387 if !proc_res.status.success() {
388 self.fatal_proc_rec("compilation failed!", &proc_res);
391 if let WillExecute::Disabled = should_run {
395 // FIXME(#41968): Move this check to tidy?
396 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
398 expected_errors.is_empty(),
399 "run-pass tests with expected warnings should be moved to ui/"
402 let proc_res = self.exec_compiled_test();
403 if !proc_res.status.success() {
404 self.fatal_proc_rec("test run failed!", &proc_res);
408 fn run_valgrind_test(&self) {
409 assert!(self.revision.is_none(), "revisions not relevant here");
411 if self.config.valgrind_path.is_none() {
412 assert!(!self.config.force_valgrind);
413 return self.run_rpass_test();
416 let should_run = self.run_if_enabled();
417 let mut proc_res = self.compile_test(should_run, Emit::None);
419 if !proc_res.status.success() {
420 self.fatal_proc_rec("compilation failed!", &proc_res);
423 if let WillExecute::Disabled = should_run {
427 let mut new_config = self.config.clone();
428 new_config.runtool = new_config.valgrind_path.clone();
429 let new_cx = TestCx { config: &new_config, ..*self };
430 proc_res = new_cx.exec_compiled_test();
432 if !proc_res.status.success() {
433 self.fatal_proc_rec("test run failed!", &proc_res);
437 fn run_pretty_test(&self) {
438 if self.props.pp_exact.is_some() {
439 logv(self.config, "testing for exact pretty-printing".to_owned());
441 logv(self.config, "testing for converging pretty-printing".to_owned());
444 let rounds = match self.props.pp_exact {
449 let src = fs::read_to_string(&self.testpaths.file).unwrap();
450 let mut srcs = vec![src];
453 while round < rounds {
456 format!("pretty-printing round {} revision {:?}", round, self.revision),
459 if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) };
461 let proc_res = self.print_source(read_from, &self.props.pretty_mode);
462 if !proc_res.status.success() {
465 "pretty-printing failed in round {} revision {:?}",
472 let ProcRes { stdout, .. } = proc_res;
477 let mut expected = match self.props.pp_exact {
479 let filepath = self.testpaths.file.parent().unwrap().join(file);
480 fs::read_to_string(&filepath).unwrap()
482 None => srcs[srcs.len() - 2].clone(),
484 let mut actual = srcs[srcs.len() - 1].clone();
486 if self.props.pp_exact.is_some() {
487 // Now we have to care about line endings
488 let cr = "\r".to_owned();
489 actual = actual.replace(&cr, "");
490 expected = expected.replace(&cr, "");
493 if !self.config.bless {
494 self.compare_source(&expected, &actual);
495 } else if expected != actual {
497 let filepath = match &self.props.pp_exact {
499 filepath_buf = self.testpaths.file.parent().unwrap().join(file);
502 None => &self.testpaths.file,
504 fs::write(filepath, &actual).unwrap();
507 // If we're only making sure that the output matches then just stop here
508 if self.props.pretty_compare_only {
512 // Finally, let's make sure it actually appears to remain valid code
513 let proc_res = self.typecheck_source(actual);
514 if !proc_res.status.success() {
515 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
518 if !self.props.pretty_expanded {
522 // additionally, run `-Zunpretty=expanded` and try to build it.
523 let proc_res = self.print_source(ReadFrom::Path, "expanded");
524 if !proc_res.status.success() {
525 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
528 let ProcRes { stdout: expanded_src, .. } = proc_res;
529 let proc_res = self.typecheck_source(expanded_src);
530 if !proc_res.status.success() {
531 self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res);
535 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
536 let aux_dir = self.aux_output_dir_name();
537 let input: &str = match read_from {
538 ReadFrom::Stdin(_) => "-",
539 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
542 let mut rustc = Command::new(&self.config.rustc_path);
545 .args(&["-Z", &format!("unpretty={}", pretty_type)])
546 .args(&["--target", &self.config.target])
549 .args(&self.props.compile_flags)
550 .envs(self.props.rustc_env.clone());
551 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
553 let src = match read_from {
554 ReadFrom::Stdin(src) => Some(src),
555 ReadFrom::Path => None,
558 self.compose_and_run(
560 self.config.compile_lib_path.to_str().unwrap(),
561 Some(aux_dir.to_str().unwrap()),
566 fn compare_source(&self, expected: &str, actual: &str) {
567 if expected != actual {
569 "pretty-printed source does not match expected source\n\
571 ------------------------------------------\n\
573 ------------------------------------------\n\
575 ------------------------------------------\n\
577 ------------------------------------------\n\
579 ------------------------------------------\n\
583 write_diff(expected, actual, 3),
588 fn set_revision_flags(&self, cmd: &mut Command) {
589 if let Some(revision) = self.revision {
590 // Normalize revisions to be lowercase and replace `-`s with `_`s.
591 // Otherwise the `--cfg` flag is not valid.
592 let normalized_revision = revision.to_lowercase().replace("-", "_");
593 cmd.args(&["--cfg", &normalized_revision]);
597 fn typecheck_source(&self, src: String) -> ProcRes {
598 let mut rustc = Command::new(&self.config.rustc_path);
600 let out_dir = self.output_base_name().with_extension("pretty-out");
601 let _ = fs::remove_dir_all(&out_dir);
602 create_dir_all(&out_dir).unwrap();
604 let target = if self.props.force_host { &*self.config.host } else { &*self.config.target };
606 let aux_dir = self.aux_output_dir_name();
613 .arg(&format!("--target={}", target))
615 .arg(&self.config.build_base)
618 self.set_revision_flags(&mut rustc);
619 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
620 rustc.args(&self.props.compile_flags);
622 self.compose_and_run_compiler(rustc, Some(src))
625 fn run_debuginfo_test(&self) {
626 match self.config.debugger.unwrap() {
627 Debugger::Cdb => self.run_debuginfo_cdb_test(),
628 Debugger::Gdb => self.run_debuginfo_gdb_test(),
629 Debugger::Lldb => self.run_debuginfo_lldb_test(),
633 fn run_debuginfo_cdb_test(&self) {
634 let config = Config {
635 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
636 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
637 ..self.config.clone()
640 let test_cx = TestCx { config: &config, ..*self };
642 test_cx.run_debuginfo_cdb_test_no_opt();
645 fn run_debuginfo_cdb_test_no_opt(&self) {
646 let exe_file = self.make_exe_name();
648 // Existing PDB files are update in-place. When changing the debuginfo
649 // the compiler generates for something, this can lead to the situation
650 // where both the old and the new version of the debuginfo for the same
651 // type is present in the PDB, which is very confusing.
652 // Therefore we delete any existing PDB file before compiling the test
654 // FIXME: If can reliably detect that MSVC's link.exe is used, then
655 // passing `/INCREMENTAL:NO` might be a cleaner way to do this.
656 let pdb_file = exe_file.with_extension(".pdb");
657 if pdb_file.exists() {
658 std::fs::remove_file(pdb_file).unwrap();
661 // compile test file (it should have 'compile-flags:-g' in the header)
662 let should_run = self.run_if_enabled();
663 let compile_result = self.compile_test(should_run, Emit::None);
664 if !compile_result.status.success() {
665 self.fatal_proc_rec("compilation failed!", &compile_result);
667 if let WillExecute::Disabled = should_run {
672 static PREFIXES: &[&str] = &["cdb", "cdbg"];
673 // No "native rust support" variation for CDB yet.
677 // Parse debugger commands etc from test files
678 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
679 match DebuggerCommands::parse_from(
680 &self.testpaths.file,
686 Err(e) => self.fatal(&e),
689 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
690 let mut script_str = String::with_capacity(2048);
691 script_str.push_str("version\n"); // List CDB (and more) version info in test output
692 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
694 // If a .js file exists next to the source file being tested, then this is a JavaScript
695 // debugging extension that needs to be loaded.
696 let mut js_extension = self.testpaths.file.clone();
697 js_extension.set_extension("cdb.js");
698 if js_extension.exists() {
699 script_str.push_str(&format!(".scriptload \"{}\"\n", js_extension.to_string_lossy()));
702 // Set breakpoints on every line that contains the string "#break"
703 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
704 for line in &breakpoint_lines {
705 script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line));
708 // Append the other `cdb-command:`s
709 for line in &commands {
710 script_str.push_str(line);
711 script_str.push_str("\n");
714 script_str.push_str("qq\n"); // Quit the debugger (including remote debugger, if any)
716 // Write the script into a file
717 debug!("script_str = {}", script_str);
718 self.dump_output_file(&script_str, "debugger.script");
719 let debugger_script = self.make_out_name("debugger.script");
721 let cdb_path = &self.config.cdb.as_ref().unwrap();
722 let mut cdb = Command::new(cdb_path);
723 cdb.arg("-lines") // Enable source line debugging.
725 .arg(&debugger_script)
728 let debugger_run_result = self.compose_and_run(
730 self.config.run_lib_path.to_str().unwrap(),
735 if !debugger_run_result.status.success() {
736 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
739 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
740 self.fatal_proc_rec(&e, &debugger_run_result);
744 fn run_debuginfo_gdb_test(&self) {
745 let config = Config {
746 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
747 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
748 ..self.config.clone()
751 let test_cx = TestCx { config: &config, ..*self };
753 test_cx.run_debuginfo_gdb_test_no_opt();
756 fn run_debuginfo_gdb_test_no_opt(&self) {
757 let prefixes = if self.config.gdb_native_rust {
759 static PREFIXES: &[&str] = &["gdb", "gdbr"];
760 println!("NOTE: compiletest thinks it is using GDB with native rust support");
764 static PREFIXES: &[&str] = &["gdb", "gdbg"];
765 println!("NOTE: compiletest thinks it is using GDB without native rust support");
769 let DebuggerCommands { commands, check_lines, breakpoint_lines } =
770 match DebuggerCommands::parse_from(
771 &self.testpaths.file,
777 Err(e) => self.fatal(&e),
779 let mut cmds = commands.join("\n");
781 // compile test file (it should have 'compile-flags:-g' in the header)
782 let should_run = self.run_if_enabled();
783 let compiler_run_result = self.compile_test(should_run, Emit::None);
784 if !compiler_run_result.status.success() {
785 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
787 if let WillExecute::Disabled = should_run {
791 let exe_file = self.make_exe_name();
793 let debugger_run_result;
794 if is_android_gdb_target(&self.config.target) {
795 cmds = cmds.replace("run", "continue");
797 let tool_path = match self.config.android_cross_path.to_str() {
798 Some(x) => x.to_owned(),
799 None => self.fatal("cannot find android cross path"),
802 // write debugger script
803 let mut script_str = String::with_capacity(2048);
804 script_str.push_str(&format!("set charset {}\n", Self::charset()));
805 script_str.push_str(&format!("set sysroot {}\n", tool_path));
806 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
807 script_str.push_str("target remote :5039\n");
808 script_str.push_str(&format!(
809 "set solib-search-path \
810 ./{}/stage2/lib/rustlib/{}/lib/\n",
811 self.config.host, self.config.target
813 for line in &breakpoint_lines {
817 self.testpaths.file.file_name().unwrap().to_string_lossy(),
822 script_str.push_str(&cmds);
823 script_str.push_str("\nquit\n");
825 debug!("script_str = {}", script_str);
826 self.dump_output_file(&script_str, "debugger.script");
828 let adb_path = &self.config.adb_path;
830 Command::new(adb_path)
833 .arg(&self.config.adb_test_dir)
835 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
837 Command::new(adb_path)
838 .args(&["forward", "tcp:5039", "tcp:5039"])
840 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
842 let adb_arg = format!(
843 "export LD_LIBRARY_PATH={}; \
844 gdbserver{} :5039 {}/{}",
845 self.config.adb_test_dir.clone(),
846 if self.config.target.contains("aarch64") { "64" } else { "" },
847 self.config.adb_test_dir.clone(),
848 exe_file.file_name().unwrap().to_str().unwrap()
851 debug!("adb arg: {}", adb_arg);
852 let mut adb = Command::new(adb_path)
853 .args(&["shell", &adb_arg])
854 .stdout(Stdio::piped())
855 .stderr(Stdio::inherit())
857 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
859 // Wait for the gdbserver to print out "Listening on port ..."
860 // at which point we know that it's started and then we can
861 // execute the debugger below.
862 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
863 let mut line = String::new();
866 stdout.read_line(&mut line).unwrap();
867 if line.starts_with("Listening on port 5039") {
873 let mut debugger_script = OsString::from("-command=");
874 debugger_script.push(self.make_out_name("debugger.script"));
875 let debugger_opts: &[&OsStr] =
876 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
878 let gdb_path = self.config.gdb.as_ref().unwrap();
879 let Output { status, stdout, stderr } = Command::new(&gdb_path)
882 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", gdb_path));
884 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
885 gdb.args(debugger_opts);
886 let cmdline = self.make_cmdline(&gdb, "");
887 logv(self.config, format!("executing {}", cmdline));
891 debugger_run_result = ProcRes {
893 stdout: String::from_utf8(stdout).unwrap(),
894 stderr: String::from_utf8(stderr).unwrap(),
897 if adb.kill().is_err() {
898 println!("Adb process is already finished.");
902 self.config.find_rust_src_root().expect("Could not find Rust source root");
903 let rust_pp_module_rel_path = Path::new("./src/etc");
904 let rust_pp_module_abs_path =
905 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
906 // write debugger script
907 let mut script_str = String::with_capacity(2048);
908 script_str.push_str(&format!("set charset {}\n", Self::charset()));
909 script_str.push_str("show version\n");
911 match self.config.gdb_version {
913 println!("NOTE: compiletest thinks it is using GDB version {}", version);
915 if version > extract_gdb_version("7.4").unwrap() {
916 // Add the directory containing the pretty printers to
917 // GDB's script auto loading safe path
918 script_str.push_str(&format!(
919 "add-auto-load-safe-path {}\n",
920 rust_pp_module_abs_path.replace(r"\", r"\\")
923 let output_base_dir = self.output_base_dir().to_str().unwrap().to_owned();
925 // Add the directory containing the output binary to
926 // include embedded pretty printers to GDB's script
927 // auto loading safe path
928 script_str.push_str(&format!(
929 "add-auto-load-safe-path {}\n",
930 output_base_dir.replace(r"\", r"\\")
936 "NOTE: compiletest does not know which version of \
942 // The following line actually doesn't have to do anything with
943 // pretty printing, it just tells GDB to print values on one line:
944 script_str.push_str("set print pretty off\n");
946 // Add the pretty printer directory to GDB's source-file search path
948 .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\")));
950 // Load the target executable
952 .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\")));
954 // Force GDB to print values in the Rust format.
955 if self.config.gdb_native_rust {
956 script_str.push_str("set language rust\n");
959 // Add line breakpoints
960 for line in &breakpoint_lines {
961 script_str.push_str(&format!(
963 self.testpaths.file.file_name().unwrap().to_string_lossy(),
968 script_str.push_str(&cmds);
969 script_str.push_str("\nquit\n");
971 debug!("script_str = {}", script_str);
972 self.dump_output_file(&script_str, "debugger.script");
974 let mut debugger_script = OsString::from("-command=");
975 debugger_script.push(self.make_out_name("debugger.script"));
977 let debugger_opts: &[&OsStr] =
978 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
980 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
981 gdb.args(debugger_opts).env("PYTHONPATH", rust_pp_module_abs_path);
983 debugger_run_result =
984 self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None);
987 if !debugger_run_result.status.success() {
988 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
991 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
992 self.fatal_proc_rec(&e, &debugger_run_result);
996 fn run_debuginfo_lldb_test(&self) {
997 if self.config.lldb_python_dir.is_none() {
998 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1001 let config = Config {
1002 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1003 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1004 ..self.config.clone()
1007 let test_cx = TestCx { config: &config, ..*self };
1009 test_cx.run_debuginfo_lldb_test_no_opt();
1012 fn run_debuginfo_lldb_test_no_opt(&self) {
1013 // compile test file (it should have 'compile-flags:-g' in the header)
1014 let should_run = self.run_if_enabled();
1015 let compile_result = self.compile_test(should_run, Emit::None);
1016 if !compile_result.status.success() {
1017 self.fatal_proc_rec("compilation failed!", &compile_result);
1019 if let WillExecute::Disabled = should_run {
1023 let exe_file = self.make_exe_name();
1025 match self.config.lldb_version {
1026 Some(ref version) => {
1027 println!("NOTE: compiletest thinks it is using LLDB version {}", version);
1031 "NOTE: compiletest does not know which version of \
1037 let prefixes = if self.config.lldb_native_rust {
1038 static PREFIXES: &[&str] = &["lldb", "lldbr"];
1039 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1042 static PREFIXES: &[&str] = &["lldb", "lldbg"];
1043 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1047 // Parse debugger commands etc from test files
1048 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
1049 match DebuggerCommands::parse_from(
1050 &self.testpaths.file,
1056 Err(e) => self.fatal(&e),
1059 // Write debugger script:
1060 // We don't want to hang when calling `quit` while the process is still running
1061 let mut script_str = String::from("settings set auto-confirm true\n");
1063 // Make LLDB emit its version, so we have it documented in the test output
1064 script_str.push_str("version\n");
1066 // Switch LLDB into "Rust mode"
1068 self.config.find_rust_src_root().expect("Could not find Rust source root");
1069 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_lookup.py");
1070 let rust_pp_module_abs_path =
1071 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
1073 let rust_type_regexes = vec![
1074 "^(alloc::([a-z_]+::)+)String$",
1076 "^&(mut )?\\[.+\\]$",
1077 "^(std::ffi::([a-z_]+::)+)OsString$",
1078 "^(alloc::([a-z_]+::)+)Vec<.+>$",
1079 "^(alloc::([a-z_]+::)+)VecDeque<.+>$",
1080 "^(alloc::([a-z_]+::)+)BTreeSet<.+>$",
1081 "^(alloc::([a-z_]+::)+)BTreeMap<.+>$",
1082 "^(std::collections::([a-z_]+::)+)HashMap<.+>$",
1083 "^(std::collections::([a-z_]+::)+)HashSet<.+>$",
1084 "^(alloc::([a-z_]+::)+)Rc<.+>$",
1085 "^(alloc::([a-z_]+::)+)Arc<.+>$",
1086 "^(core::([a-z_]+::)+)Cell<.+>$",
1087 "^(core::([a-z_]+::)+)Ref<.+>$",
1088 "^(core::([a-z_]+::)+)RefMut<.+>$",
1089 "^(core::([a-z_]+::)+)RefCell<.+>$",
1090 "^core::num::([a-z_]+::)*NonZero.+$",
1094 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1095 script_str.push_str("type synthetic add -l lldb_lookup.synthetic_lookup -x '.*' ");
1096 script_str.push_str("--category Rust\n");
1097 for type_regex in rust_type_regexes {
1098 script_str.push_str("type summary add -F lldb_lookup.summary_lookup -e -x -h ");
1099 script_str.push_str(&format!("'{}' ", type_regex));
1100 script_str.push_str("--category Rust\n");
1102 script_str.push_str("type category enable Rust\n");
1104 // Set breakpoints on every line that contains the string "#break"
1105 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1106 for line in &breakpoint_lines {
1107 script_str.push_str(&format!(
1108 "breakpoint set --file '{}' --line {}\n",
1109 source_file_name, line
1113 // Append the other commands
1114 for line in &commands {
1115 script_str.push_str(line);
1116 script_str.push_str("\n");
1119 // Finally, quit the debugger
1120 script_str.push_str("\nquit\n");
1122 // Write the script into a file
1123 debug!("script_str = {}", script_str);
1124 self.dump_output_file(&script_str, "debugger.script");
1125 let debugger_script = self.make_out_name("debugger.script");
1127 // Let LLDB execute the script via lldb_batchmode.py
1128 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1130 if !debugger_run_result.status.success() {
1131 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1134 if let Err(e) = check_debugger_output(&debugger_run_result, &check_lines) {
1135 self.fatal_proc_rec(&e, &debugger_run_result);
1141 test_executable: &Path,
1142 debugger_script: &Path,
1143 rust_src_root: &Path,
1145 // Prepare the lldb_batchmode which executes the debugger script
1146 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1148 Command::new(&self.config.python)
1149 .arg(&lldb_script_path)
1150 .arg(test_executable)
1151 .arg(debugger_script)
1152 .env("PYTHONUNBUFFERED", "1") // Help debugging #78665
1153 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1157 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1158 let (status, out, err) = match cmd.output() {
1159 Ok(Output { status, stdout, stderr }) => {
1160 (status, String::from_utf8(stdout).unwrap(), String::from_utf8(stderr).unwrap())
1162 Err(e) => self.fatal(&format!(
1163 "Failed to setup Python process for \
1169 self.dump_output(&out, &err);
1170 ProcRes { status, stdout: out, stderr: err, cmdline: format!("{:?}", cmd) }
1173 fn cleanup_debug_info_options(&self, options: &Vec<String>) -> Vec<String> {
1174 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1175 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1177 options.iter().filter(|x| !options_to_remove.contains(x)).map(|x| x.clone()).collect()
1180 fn maybe_add_external_args(&self, cmd: &mut Command, args: &Vec<String>) {
1181 // Filter out the arguments that should not be added by runtest here.
1183 // Notable use-cases are: do not add our optimisation flag if
1184 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1185 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/ "opt-level="];
1186 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/ "debuginfo="];
1188 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1189 // its arguments. They need to be collected separately. For now I cannot be bothered to
1190 // implement this the "right" way.
1192 self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f)));
1193 let have_debug_flag = self
1197 .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)));
1200 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1203 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1210 fn check_all_error_patterns(
1212 output_to_check: &str,
1214 pm: Option<PassMode>,
1216 if self.props.error_patterns.is_empty() && self.props.regex_error_patterns.is_empty() {
1221 self.fatal(&format!(
1222 "no error pattern specified in {:?}",
1223 self.testpaths.file.display()
1228 let mut missing_patterns: Vec<String> = Vec::new();
1230 self.check_error_patterns(output_to_check, &mut missing_patterns);
1231 self.check_regex_error_patterns(output_to_check, proc_res, &mut missing_patterns);
1233 if missing_patterns.is_empty() {
1237 if missing_patterns.len() == 1 {
1238 self.fatal_proc_rec(
1239 &format!("error pattern '{}' not found!", missing_patterns[0]),
1243 for pattern in missing_patterns {
1244 self.error(&format!("error pattern '{}' not found!", pattern));
1246 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1250 fn check_error_patterns(&self, output_to_check: &str, missing_patterns: &mut Vec<String>) {
1251 debug!("check_error_patterns");
1252 for pattern in &self.props.error_patterns {
1253 if output_to_check.contains(pattern.trim()) {
1254 debug!("found error pattern {}", pattern);
1256 missing_patterns.push(pattern.to_string());
1261 fn check_regex_error_patterns(
1263 output_to_check: &str,
1265 missing_patterns: &mut Vec<String>,
1267 debug!("check_regex_error_patterns");
1269 for pattern in &self.props.regex_error_patterns {
1270 let pattern = pattern.trim();
1271 let re = match Regex::new(pattern) {
1274 self.fatal_proc_rec(
1275 &format!("invalid regex error pattern '{}': {:?}", pattern, err),
1280 if re.is_match(output_to_check) {
1281 debug!("found regex error pattern {}", pattern);
1283 missing_patterns.push(pattern.to_string());
1288 fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) {
1289 match proc_res.status.code() {
1290 Some(101) if !should_ice => {
1291 self.fatal_proc_rec("compiler encountered internal error", proc_res)
1293 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1298 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1299 for pat in &self.props.forbid_output {
1300 if output_to_check.contains(pat) {
1301 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1306 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1308 "check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1309 expected_errors, proc_res.status
1311 if proc_res.status.success()
1312 && expected_errors.iter().any(|x| x.kind == Some(ErrorKind::Error))
1314 self.fatal_proc_rec("process did not return an error status", proc_res);
1317 if self.props.known_bug {
1318 if !expected_errors.is_empty() {
1319 self.fatal_proc_rec(
1320 "`known_bug` tests should not have an expected errors",
1327 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1328 // from the compiler
1329 let os_file_name = self.testpaths.file.display().to_string();
1331 // on windows, translate all '\' path separators to '/'
1332 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1334 // If the testcase being checked contains at least one expected "help"
1335 // message, then we'll ensure that all "help" messages are expected.
1336 // Otherwise, all "help" messages reported by the compiler will be ignored.
1337 // This logic also applies to "note" messages.
1338 let expect_help = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Help));
1339 let expect_note = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Note));
1341 // Parse the JSON output from the compiler and extract out the messages.
1342 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1343 let mut unexpected = Vec::new();
1344 let mut found = vec![false; expected_errors.len()];
1345 for actual_error in &actual_errors {
1347 expected_errors.iter().enumerate().position(|(index, expected_error)| {
1349 && actual_error.line_num == expected_error.line_num
1350 && (expected_error.kind.is_none()
1351 || actual_error.kind == expected_error.kind)
1352 && actual_error.msg.contains(&expected_error.msg)
1357 // found a match, everybody is happy
1358 assert!(!found[index]);
1359 found[index] = true;
1363 // If the test is a known bug, don't require that the error is annotated
1364 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1365 self.error(&format!(
1366 "{}:{}: unexpected {}: '{}'",
1368 actual_error.line_num,
1372 .map_or(String::from("message"), |k| k.to_string()),
1375 unexpected.push(actual_error);
1381 let mut not_found = Vec::new();
1382 // anything not yet found is a problem
1383 for (index, expected_error) in expected_errors.iter().enumerate() {
1385 self.error(&format!(
1386 "{}:{}: expected {} not found: {}",
1388 expected_error.line_num,
1389 expected_error.kind.as_ref().map_or("message".into(), |k| k.to_string()),
1392 not_found.push(expected_error);
1396 if !unexpected.is_empty() || !not_found.is_empty() {
1397 self.error(&format!(
1398 "{} unexpected errors found, {} expected errors not found",
1402 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1403 if !unexpected.is_empty() {
1404 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1406 if !not_found.is_empty() {
1407 println!("not found errors (from test file): {:#?}\n", not_found);
1413 /// Returns `true` if we should report an error about `actual_error`,
1414 /// which did not match any of the expected error. We always require
1415 /// errors/warnings to be explicitly listed, but only require
1416 /// helps/notes if there are explicit helps/notes given.
1417 fn is_unexpected_compiler_message(
1419 actual_error: &Error,
1423 match actual_error.kind {
1424 Some(ErrorKind::Help) => expect_help,
1425 Some(ErrorKind::Note) => expect_note,
1426 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1427 Some(ErrorKind::Suggestion) | None => false,
1431 fn should_emit_metadata(&self, pm: Option<PassMode>) -> Emit {
1432 match (pm, self.props.fail_mode, self.config.mode) {
1433 (Some(PassMode::Check), ..) | (_, Some(FailMode::Check), Ui) => Emit::Metadata,
1438 fn compile_test(&self, will_execute: WillExecute, emit: Emit) -> ProcRes {
1439 self.compile_test_general(will_execute, emit, self.props.local_pass_mode())
1442 fn compile_test_general(
1444 will_execute: WillExecute,
1446 local_pm: Option<PassMode>,
1448 // Only use `make_exe_name` when the test ends up being executed.
1449 let output_file = match will_execute {
1450 WillExecute::Yes => TargetLocation::ThisFile(self.make_exe_name()),
1451 WillExecute::No | WillExecute::Disabled => {
1452 TargetLocation::ThisDirectory(self.output_base_dir())
1456 let allow_unused = match self.config.mode {
1458 // UI tests tend to have tons of unused code as
1459 // it's just testing various pieces of the compile, but we don't
1460 // want to actually assert warnings about all this code. Instead
1461 // let's just ignore unused code warnings by defaults and tests
1462 // can turn it back on if needed.
1463 if !self.is_rustdoc()
1464 // Note that we use the local pass mode here as we don't want
1465 // to set unused to allow if we've overridden the pass mode
1466 // via command line flags.
1467 && local_pm != Some(PassMode::Run)
1474 _ => AllowUnused::No,
1477 let rustc = self.make_compile_args(
1478 &self.testpaths.file,
1485 self.compose_and_run_compiler(rustc, None)
1488 fn document(&self, out_dir: &Path) -> ProcRes {
1489 if self.props.build_aux_docs {
1490 for rel_ab in &self.props.aux_builds {
1491 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1493 self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1494 let aux_cx = TestCx {
1495 config: self.config,
1497 testpaths: &aux_testpaths,
1498 revision: self.revision,
1500 // Create the directory for the stdout/stderr files.
1501 create_dir_all(aux_cx.output_base_dir()).unwrap();
1502 let auxres = aux_cx.document(out_dir);
1503 if !auxres.status.success() {
1509 let aux_dir = self.aux_output_dir_name();
1511 let rustdoc_path = self.config.rustdoc_path.as_ref().expect("--rustdoc-path not passed");
1512 let mut rustdoc = Command::new(rustdoc_path);
1516 .arg(self.config.run_lib_path.to_str().unwrap())
1523 .arg(&self.testpaths.file)
1524 .args(&self.props.compile_flags);
1526 if self.config.mode == RustdocJson {
1527 rustdoc.arg("--output-format").arg("json").arg("-Zunstable-options");
1530 if let Some(ref linker) = self.config.linker {
1531 rustdoc.arg(format!("-Clinker={}", linker));
1534 self.compose_and_run_compiler(rustdoc, None)
1537 fn exec_compiled_test(&self) -> ProcRes {
1538 let env = &self.props.exec_env;
1540 let proc_res = match &*self.config.target {
1541 // This is pretty similar to below, we're transforming:
1543 // program arg1 arg2
1547 // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2
1549 // The test-client program will upload `program` to the emulator
1550 // along with all other support libraries listed (in this case
1551 // `support-lib.so` and `support-lib2.so`. It will then execute
1552 // the program on the emulator with the arguments specified
1553 // (in the environment we give the process) and then report back
1555 _ if self.config.remote_test_client.is_some() => {
1556 let aux_dir = self.aux_output_dir_name();
1557 let ProcArgs { prog, args } = self.make_run_args();
1558 let mut support_libs = Vec::new();
1559 if let Ok(entries) = aux_dir.read_dir() {
1560 for entry in entries {
1561 let entry = entry.unwrap();
1562 if !entry.path().is_file() {
1565 support_libs.push(entry.path());
1568 let mut test_client =
1569 Command::new(self.config.remote_test_client.as_ref().unwrap());
1571 .args(&["run", &support_libs.len().to_string(), &prog])
1575 self.compose_and_run(
1577 self.config.run_lib_path.to_str().unwrap(),
1578 Some(aux_dir.to_str().unwrap()),
1582 _ if self.config.target.contains("vxworks") => {
1583 let aux_dir = self.aux_output_dir_name();
1584 let ProcArgs { prog, args } = self.make_run_args();
1585 let mut wr_run = Command::new("wr-run");
1586 wr_run.args(&[&prog]).args(args).envs(env.clone());
1587 self.compose_and_run(
1589 self.config.run_lib_path.to_str().unwrap(),
1590 Some(aux_dir.to_str().unwrap()),
1595 let aux_dir = self.aux_output_dir_name();
1596 let ProcArgs { prog, args } = self.make_run_args();
1597 let mut program = Command::new(&prog);
1598 program.args(args).current_dir(&self.output_base_dir()).envs(env.clone());
1599 self.compose_and_run(
1601 self.config.run_lib_path.to_str().unwrap(),
1602 Some(aux_dir.to_str().unwrap()),
1608 if proc_res.status.success() {
1609 // delete the executable after running it to save space.
1610 // it is ok if the deletion failed.
1611 let _ = fs::remove_file(self.make_exe_name());
1617 /// For each `aux-build: foo/bar` annotation, we check to find the
1618 /// file in an `auxiliary` directory relative to the test itself.
1619 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1624 .expect("test file path has no parent")
1627 if !test_ab.exists() {
1628 self.fatal(&format!("aux-build `{}` source not found", test_ab.display()))
1636 .join(self.output_testname_unique())
1640 .expect("aux-build path has no parent")
1645 fn is_vxworks_pure_static(&self) -> bool {
1646 if self.config.target.contains("vxworks") {
1647 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1656 fn is_vxworks_pure_dynamic(&self) -> bool {
1657 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1660 fn build_all_auxiliary(&self, rustc: &mut Command) -> PathBuf {
1661 let aux_dir = self.aux_output_dir_name();
1663 if !self.props.aux_builds.is_empty() {
1664 let _ = fs::remove_dir_all(&aux_dir);
1665 create_dir_all(&aux_dir).unwrap();
1668 for rel_ab in &self.props.aux_builds {
1669 self.build_auxiliary(rel_ab, &aux_dir);
1672 for (aux_name, aux_path) in &self.props.aux_crates {
1673 let is_dylib = self.build_auxiliary(&aux_path, &aux_dir);
1675 get_lib_name(&aux_path.trim_end_matches(".rs").replace('-', "_"), is_dylib);
1676 rustc.arg("--extern").arg(format!("{}={}/{}", aux_name, aux_dir.display(), lib_name));
1682 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1683 let aux_dir = self.build_all_auxiliary(&mut rustc);
1684 self.props.unset_rustc_env.iter().fold(&mut rustc, Command::env_remove);
1685 rustc.envs(self.props.rustc_env.clone());
1686 self.compose_and_run(
1688 self.config.compile_lib_path.to_str().unwrap(),
1689 Some(aux_dir.to_str().unwrap()),
1694 /// Builds an aux dependency.
1696 /// Returns whether or not it is a dylib.
1697 fn build_auxiliary(&self, source_path: &str, aux_dir: &Path) -> bool {
1698 let aux_testpaths = self.compute_aux_test_paths(source_path);
1699 let aux_props = self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1700 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1701 let aux_cx = TestCx {
1702 config: self.config,
1704 testpaths: &aux_testpaths,
1705 revision: self.revision,
1707 // Create the directory for the stdout/stderr files.
1708 create_dir_all(aux_cx.output_base_dir()).unwrap();
1709 let input_file = &aux_testpaths.file;
1710 let mut aux_rustc = aux_cx.make_compile_args(
1718 for key in &aux_props.unset_rustc_env {
1719 aux_rustc.env_remove(key);
1721 aux_rustc.envs(aux_props.rustc_env.clone());
1723 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1725 } else if self.config.target.contains("emscripten")
1726 || (self.config.target.contains("musl")
1727 && !aux_props.force_host
1728 && !self.config.host.contains("musl"))
1729 || self.config.target.contains("wasm32")
1730 || self.config.target.contains("nvptx")
1731 || self.is_vxworks_pure_static()
1732 || self.config.target.contains("sgx")
1733 || self.config.target.contains("bpf")
1735 // We primarily compile all auxiliary libraries as dynamic libraries
1736 // to avoid code size bloat and large binaries as much as possible
1737 // for the test suite (otherwise including libstd statically in all
1738 // executables takes up quite a bit of space).
1740 // For targets like MUSL or Emscripten, however, there is no support for
1741 // dynamic libraries so we just go back to building a normal library. Note,
1742 // however, that for MUSL if the library is built with `force_host` then
1743 // it's ok to be a dylib as the host should always support dylibs.
1744 (false, Some("lib"))
1746 (true, Some("dylib"))
1749 if let Some(crate_type) = crate_type {
1750 aux_rustc.args(&["--crate-type", crate_type]);
1753 aux_rustc.arg("-L").arg(&aux_dir);
1755 let auxres = aux_cx.compose_and_run(
1757 aux_cx.config.compile_lib_path.to_str().unwrap(),
1758 Some(aux_dir.to_str().unwrap()),
1761 if !auxres.status.success() {
1762 self.fatal_proc_rec(
1764 "auxiliary build of {:?} failed to compile: ",
1765 aux_testpaths.file.display()
1773 fn read2_abbreviated(&self, child: Child) -> Output {
1774 let mut filter_paths_from_len = Vec::new();
1775 let mut add_path = |path: &Path| {
1776 let path = path.display().to_string();
1777 let windows = path.replace("\\", "\\\\");
1778 if windows != path {
1779 filter_paths_from_len.push(windows);
1781 filter_paths_from_len.push(path);
1784 // List of paths that will not be measured when determining whether the output is larger
1785 // than the output truncation threshold.
1787 // Note: avoid adding a subdirectory of an already filtered directory here, otherwise the
1788 // same slice of text will be double counted and the truncation might not happen.
1789 add_path(&self.config.src_base);
1790 add_path(&self.config.build_base);
1792 read2_abbreviated(child, &filter_paths_from_len).expect("failed to read output")
1797 mut command: Command,
1799 aux_path: Option<&str>,
1800 input: Option<String>,
1803 let cmdline = self.make_cmdline(&command, lib_path);
1804 logv(self.config, format!("executing {}", cmdline));
1808 command.stdout(Stdio::piped()).stderr(Stdio::piped()).stdin(Stdio::piped());
1810 // Need to be sure to put both the lib_path and the aux path in the dylib
1811 // search path for the child.
1812 add_dylib_path(&mut command, iter::once(lib_path).chain(aux_path));
1814 let mut child = disable_error_reporting(|| command.spawn())
1815 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", &command));
1816 if let Some(input) = input {
1817 child.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();
1820 let Output { status, stdout, stderr } = self.read2_abbreviated(child);
1822 let result = ProcRes {
1824 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1825 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1829 self.dump_output(&result.stdout, &result.stderr);
1834 fn is_rustdoc(&self) -> bool {
1835 self.config.src_base.ends_with("rustdoc-ui")
1836 || self.config.src_base.ends_with("rustdoc-js")
1837 || self.config.src_base.ends_with("rustdoc-json")
1840 fn make_compile_args(
1843 output_file: TargetLocation,
1845 allow_unused: AllowUnused,
1846 link_to_aux: LinkToAux,
1848 let is_aux = input_file.components().map(|c| c.as_os_str()).any(|c| c == "auxiliary");
1849 let is_rustdoc = self.is_rustdoc() && !is_aux;
1850 let mut rustc = if !is_rustdoc {
1851 Command::new(&self.config.rustc_path)
1853 Command::new(&self.config.rustdoc_path.clone().expect("no rustdoc built yet"))
1855 rustc.arg(input_file);
1857 // Use a single thread for efficiency and a deterministic error message order
1858 rustc.arg("-Zthreads=1");
1860 // Optionally prevent default --target if specified in test compile-flags.
1861 let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target"));
1865 if self.props.force_host { &*self.config.host } else { &*self.config.target };
1867 rustc.arg(&format!("--target={}", target));
1869 self.set_revision_flags(&mut rustc);
1872 if let Some(ref incremental_dir) = self.props.incremental_dir {
1873 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1874 rustc.args(&["-Z", "incremental-verify-ich"]);
1877 if self.config.mode == CodegenUnits {
1878 rustc.args(&["-Z", "human_readable_cgu_names"]);
1882 if self.config.optimize_tests && !is_rustdoc {
1883 match self.config.mode {
1885 // If optimize-tests is true we still only want to optimize tests that actually get
1886 // executed and that don't specify their own optimization levels.
1887 // Note: aux libs don't have a pass-mode, so they won't get optimized
1888 // unless compile-flags are set in the aux file.
1889 if self.config.optimize_tests
1890 && self.props.pass_mode(&self.config) == Some(PassMode::Run)
1895 .any(|arg| arg == "-O" || arg.contains("opt-level"))
1900 DebugInfo => { /* debuginfo tests must be unoptimized */ }
1907 match self.config.mode {
1909 // If we are extracting and matching errors in the new
1910 // fashion, then you want JSON mode. Old-skool error
1911 // patterns still match the raw compiler output.
1912 if self.props.error_patterns.is_empty()
1913 && self.props.regex_error_patterns.is_empty()
1915 rustc.args(&["--error-format", "json"]);
1916 rustc.args(&["--json", "future-incompat"]);
1918 rustc.arg("-Zui-testing");
1919 rustc.arg("-Zdeduplicate-diagnostics=no");
1922 if !self.props.compile_flags.iter().any(|s| s.starts_with("--error-format")) {
1923 rustc.args(&["--error-format", "json"]);
1924 rustc.args(&["--json", "future-incompat"]);
1926 rustc.arg("-Ccodegen-units=1");
1927 rustc.arg("-Zui-testing");
1928 rustc.arg("-Zdeduplicate-diagnostics=no");
1929 // FIXME: use this for other modes too, for perf?
1930 rustc.arg("-Cstrip=debuginfo");
1937 "-Zdump-mir-exclude-pass-number",
1938 "-Zmir-pretty-relative-line-numbers=yes",
1940 if let Some(pass) = &self.props.mir_unit_test {
1941 rustc.args(&["-Zmir-opt-level=0", &format!("-Zmir-enable-passes=+{}", pass)]);
1943 rustc.arg("-Zmir-opt-level=4");
1946 let mir_dump_dir = self.get_mir_dump_dir();
1947 let _ = fs::remove_dir_all(&mir_dump_dir);
1948 create_dir_all(mir_dump_dir.as_path()).unwrap();
1949 let mut dir_opt = "-Zdump-mir-dir=".to_string();
1950 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
1951 debug!("dir_opt: {:?}", dir_opt);
1955 RunPassValgrind | Pretty | DebugInfo | Codegen | Rustdoc | RustdocJson | RunMake
1956 | CodegenUnits | JsDocTest | Assembly => {
1957 // do not use JSON output
1963 Emit::Metadata if is_rustdoc => {}
1965 rustc.args(&["--emit", "metadata"]);
1968 rustc.args(&["--emit", "llvm-ir"]);
1971 rustc.args(&["--emit", "asm"]);
1976 if self.config.target == "wasm32-unknown-unknown" || self.is_vxworks_pure_static() {
1977 // rustc.arg("-g"); // get any backtrace at all on errors
1978 } else if !self.props.no_prefer_dynamic {
1979 rustc.args(&["-C", "prefer-dynamic"]);
1984 TargetLocation::ThisFile(path) => {
1985 rustc.arg("-o").arg(path);
1987 TargetLocation::ThisDirectory(path) => {
1989 // `rustdoc` uses `-o` for the output directory.
1990 rustc.arg("-o").arg(path);
1992 rustc.arg("--out-dir").arg(path);
1997 match self.config.compare_mode {
1998 Some(CompareMode::Polonius) => {
1999 rustc.args(&["-Zpolonius"]);
2001 Some(CompareMode::Chalk) => {
2002 rustc.args(&["-Zchalk"]);
2004 Some(CompareMode::SplitDwarf) if self.config.target.contains("windows") => {
2005 rustc.args(&["-Csplit-debuginfo=unpacked", "-Zunstable-options"]);
2007 Some(CompareMode::SplitDwarf) => {
2008 rustc.args(&["-Csplit-debuginfo=unpacked"]);
2010 Some(CompareMode::SplitDwarfSingle) => {
2011 rustc.args(&["-Csplit-debuginfo=packed"]);
2016 // Add `-A unused` before `config` flags and in-test (`props`) flags, so that they can
2018 if let AllowUnused::Yes = allow_unused {
2019 rustc.args(&["-A", "unused"]);
2022 if self.props.force_host {
2023 self.maybe_add_external_args(&mut rustc, &self.config.host_rustcflags);
2025 self.maybe_add_external_args(&mut rustc, &self.config.target_rustcflags);
2027 if let Some(ref linker) = self.config.linker {
2028 rustc.arg(format!("-Clinker={}", linker));
2033 // Use dynamic musl for tests because static doesn't allow creating dylibs
2034 if self.config.host.contains("musl") || self.is_vxworks_pure_dynamic() {
2035 rustc.arg("-Ctarget-feature=-crt-static");
2038 if let LinkToAux::Yes = link_to_aux {
2039 rustc.arg("-L").arg(self.aux_output_dir_name());
2042 rustc.args(&self.props.compile_flags);
2047 fn make_exe_name(&self) -> PathBuf {
2048 // Using a single letter here to keep the path length down for
2049 // Windows. Some test names get very long. rustc creates `rcgu`
2050 // files with the module name appended to it which can more than
2051 // double the length.
2052 let mut f = self.output_base_dir().join("a");
2053 // FIXME: This is using the host architecture exe suffix, not target!
2054 if self.config.target.contains("emscripten") {
2055 f = f.with_extra_extension("js");
2056 } else if self.config.target.contains("wasm32") {
2057 f = f.with_extra_extension("wasm");
2058 } else if self.config.target.contains("spirv") {
2059 f = f.with_extra_extension("spv");
2060 } else if !env::consts::EXE_SUFFIX.is_empty() {
2061 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2066 fn make_run_args(&self) -> ProcArgs {
2067 // If we've got another tool to run under (valgrind),
2068 // then split apart its command
2069 let mut args = self.split_maybe_args(&self.config.runtool);
2071 // If this is emscripten, then run tests under nodejs
2072 if self.config.target.contains("emscripten") {
2073 if let Some(ref p) = self.config.nodejs {
2074 args.push(p.clone());
2076 self.fatal("no NodeJS binary found (--nodejs)");
2078 // If this is otherwise wasm, then run tests under nodejs with our
2080 } else if self.config.target.contains("wasm32") {
2081 if let Some(ref p) = self.config.nodejs {
2082 args.push(p.clone());
2084 self.fatal("no NodeJS binary found (--nodejs)");
2091 .unwrap() // chop off `ui`
2093 .unwrap() // chop off `test`
2095 .unwrap(); // chop off `src`
2096 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2099 let exe_file = self.make_exe_name();
2101 // FIXME (#9639): This needs to handle non-utf8 paths
2102 args.push(exe_file.to_str().unwrap().to_owned());
2104 // Add the arguments in the run_flags directive
2105 args.extend(self.split_maybe_args(&self.props.run_flags));
2107 let prog = args.remove(0);
2108 ProcArgs { prog, args }
2111 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2116 if s.chars().all(|c| c.is_whitespace()) { None } else { Some(s.to_owned()) }
2123 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2126 // Linux and mac don't require adjusting the library search path
2128 format!("{:?}", command)
2130 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2131 // for diagnostic purposes
2132 fn lib_path_cmd_prefix(path: &str) -> String {
2133 format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
2136 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2140 fn dump_output(&self, out: &str, err: &str) {
2141 let revision = if let Some(r) = self.revision { format!("{}.", r) } else { String::new() };
2143 self.dump_output_file(out, &format!("{}out", revision));
2144 self.dump_output_file(err, &format!("{}err", revision));
2145 self.maybe_dump_to_stdout(out, err);
2148 fn dump_output_file(&self, out: &str, extension: &str) {
2149 let outfile = self.make_out_name(extension);
2150 fs::write(&outfile, out).unwrap();
2153 /// Creates a filename for output with the given extension.
2154 /// E.g., `/.../testname.revision.mode/testname.extension`.
2155 fn make_out_name(&self, extension: &str) -> PathBuf {
2156 self.output_base_name().with_extension(extension)
2159 /// Gets the directory where auxiliary files are written.
2160 /// E.g., `/.../testname.revision.mode/auxiliary/`.
2161 fn aux_output_dir_name(&self) -> PathBuf {
2162 self.output_base_dir()
2164 .with_extra_extension(self.config.mode.disambiguator())
2167 /// Generates a unique name for the test, such as `testname.revision.mode`.
2168 fn output_testname_unique(&self) -> PathBuf {
2169 output_testname_unique(self.config, self.testpaths, self.safe_revision())
2172 /// The revision, ignored for incremental compilation since it wants all revisions in
2173 /// the same directory.
2174 fn safe_revision(&self) -> Option<&str> {
2175 if self.config.mode == Incremental { None } else { self.revision }
2178 /// Gets the absolute path to the directory where all output for the given
2179 /// test/revision should reside.
2180 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2181 fn output_base_dir(&self) -> PathBuf {
2182 output_base_dir(self.config, self.testpaths, self.safe_revision())
2185 /// Gets the absolute path to the base filename used as output for the given
2187 /// E.g., `/.../relative/testname.revision.mode/testname`.
2188 fn output_base_name(&self) -> PathBuf {
2189 output_base_name(self.config, self.testpaths, self.safe_revision())
2192 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2193 if self.config.verbose {
2194 println!("------stdout------------------------------");
2195 println!("{}", out);
2196 println!("------stderr------------------------------");
2197 println!("{}", err);
2198 println!("------------------------------------------");
2202 fn error(&self, err: &str) {
2203 match self.revision {
2204 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2205 None => println!("\nerror: {}", err),
2209 fn fatal(&self, err: &str) -> ! {
2211 error!("fatal error, panic: {:?}", err);
2212 panic!("fatal error");
2215 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2217 proc_res.fatal(None, || ());
2220 fn fatal_proc_rec_with_ctx(
2224 on_failure: impl FnOnce(Self),
2227 proc_res.fatal(None, || on_failure(*self));
2230 // codegen tests (using FileCheck)
2232 fn compile_test_and_save_ir(&self) -> ProcRes {
2233 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2234 let input_file = &self.testpaths.file;
2235 let rustc = self.make_compile_args(
2243 self.compose_and_run_compiler(rustc, None)
2246 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2247 // This works with both `--emit asm` (as default output name for the assembly)
2248 // and `ptx-linker` because the latter can write output at requested location.
2249 let output_path = self.output_base_name().with_extension("s");
2251 let output_file = TargetLocation::ThisFile(output_path.clone());
2252 let input_file = &self.testpaths.file;
2254 let mut emit = Emit::None;
2255 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2256 Some("emit-asm") => {
2260 Some("ptx-linker") => {
2261 // No extra flags needed.
2264 Some(_) => self.fatal("unknown 'assembly-output' header"),
2265 None => self.fatal("missing 'assembly-output' header"),
2269 self.make_compile_args(input_file, output_file, emit, AllowUnused::No, LinkToAux::Yes);
2271 (self.compose_and_run_compiler(rustc, None), output_path)
2274 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2275 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2276 filecheck.arg("--input-file").arg(output).arg(&self.testpaths.file);
2277 // It would be more appropriate to make most of the arguments configurable through
2278 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2281 // For now, though…
2282 let prefix_for_target =
2283 if self.config.target.contains("msvc") { "MSVC" } else { "NONMSVC" };
2284 let prefixes = if let Some(rev) = self.revision {
2285 format!("CHECK,{},{}", prefix_for_target, rev)
2287 format!("CHECK,{}", prefix_for_target)
2289 if self.config.llvm_version.unwrap_or(0) >= 130000 {
2290 filecheck.args(&["--allow-unused-prefixes", "--check-prefixes", &prefixes]);
2292 filecheck.args(&["--check-prefixes", &prefixes]);
2294 self.compose_and_run(filecheck, "", None, None)
2297 fn run_codegen_test(&self) {
2298 if self.config.llvm_filecheck.is_none() {
2299 self.fatal("missing --llvm-filecheck");
2302 let proc_res = self.compile_test_and_save_ir();
2303 if !proc_res.status.success() {
2304 self.fatal_proc_rec("compilation failed!", &proc_res);
2307 let output_path = self.output_base_name().with_extension("ll");
2308 let proc_res = self.verify_with_filecheck(&output_path);
2309 if !proc_res.status.success() {
2310 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2314 fn run_assembly_test(&self) {
2315 if self.config.llvm_filecheck.is_none() {
2316 self.fatal("missing --llvm-filecheck");
2319 let (proc_res, output_path) = self.compile_test_and_save_assembly();
2320 if !proc_res.status.success() {
2321 self.fatal_proc_rec("compilation failed!", &proc_res);
2324 let proc_res = self.verify_with_filecheck(&output_path);
2325 if !proc_res.status.success() {
2326 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2330 fn charset() -> &'static str {
2331 // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset
2332 if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" }
2335 fn run_rustdoc_test(&self) {
2336 assert!(self.revision.is_none(), "revisions not relevant here");
2338 let out_dir = self.output_base_dir();
2339 let _ = fs::remove_dir_all(&out_dir);
2340 create_dir_all(&out_dir).unwrap();
2342 let proc_res = self.document(&out_dir);
2343 if !proc_res.status.success() {
2344 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2347 if self.props.check_test_line_numbers_match {
2348 self.check_rustdoc_test_option(proc_res);
2350 let root = self.config.find_rust_src_root().unwrap();
2351 let mut cmd = Command::new(&self.config.python);
2352 cmd.arg(root.join("src/etc/htmldocck.py")).arg(&out_dir).arg(&self.testpaths.file);
2353 if self.config.bless {
2356 let res = self.cmd2procres(&mut cmd);
2357 if !res.status.success() {
2358 self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| {
2359 this.compare_to_default_rustdoc(&out_dir)
2365 fn compare_to_default_rustdoc(&mut self, out_dir: &Path) {
2366 if !self.config.has_tidy {
2369 println!("info: generating a diff against nightly rustdoc");
2372 self.safe_revision().map_or("nightly".into(), |path| path.to_owned() + "-nightly");
2373 let compare_dir = output_base_dir(self.config, self.testpaths, Some(&suffix));
2374 // Don't give an error if the directory didn't already exist
2375 let _ = fs::remove_dir_all(&compare_dir);
2376 create_dir_all(&compare_dir).unwrap();
2378 // We need to create a new struct for the lifetimes on `config` to work.
2379 let new_rustdoc = TestCx {
2381 // FIXME: use beta or a user-specified rustdoc instead of
2382 // hardcoding the default toolchain
2383 rustdoc_path: Some("rustdoc".into()),
2384 // Needed for building auxiliary docs below
2385 rustc_path: "rustc".into(),
2386 ..self.config.clone()
2391 let output_file = TargetLocation::ThisDirectory(new_rustdoc.aux_output_dir_name());
2392 let mut rustc = new_rustdoc.make_compile_args(
2393 &new_rustdoc.testpaths.file,
2399 new_rustdoc.build_all_auxiliary(&mut rustc);
2401 let proc_res = new_rustdoc.document(&compare_dir);
2402 if !proc_res.status.success() {
2403 eprintln!("failed to run nightly rustdoc");
2410 "--indent-spaces", "2",
2412 "--show-warnings", "no",
2417 let tidy_dir = |dir| {
2418 for entry in walkdir::WalkDir::new(dir) {
2419 let entry = entry.expect("failed to read file");
2420 if entry.file_type().is_file()
2421 && entry.path().extension().and_then(|p| p.to_str()) == Some("html".into())
2424 Command::new("tidy").args(&tidy_args).arg(entry.path()).status().unwrap();
2425 // `tidy` returns 1 if it modified the file.
2426 assert!(status.success() || status.code() == Some(1));
2431 tidy_dir(&compare_dir);
2434 let output = Command::new("git").args(&["config", "--get", "core.pager"]).output().ok();
2435 output.and_then(|out| {
2436 if out.status.success() {
2437 Some(String::from_utf8(out.stdout).expect("invalid UTF8 in git pager"))
2444 let diff_filename = format!("build/tmp/rustdoc-compare-{}.diff", std::process::id());
2446 if !write_filtered_diff(
2450 self.config.verbose,
2451 |file_type, extension| {
2453 && (extension == Some("html".into()) || extension == Some("js".into()))
2459 match self.config.color {
2460 ColorConfig::AlwaysColor => colored::control::set_override(true),
2461 ColorConfig::NeverColor => colored::control::set_override(false),
2465 if let Some(pager) = pager {
2466 let pager = pager.trim();
2467 if self.config.verbose {
2468 eprintln!("using pager {}", pager);
2470 let output = Command::new(pager)
2471 // disable paging; we want this to be non-interactive
2473 .stdin(File::open(&diff_filename).unwrap())
2474 // Capture output and print it explicitly so it will in turn be
2475 // captured by libtest.
2478 assert!(output.status.success());
2479 println!("{}", String::from_utf8_lossy(&output.stdout));
2480 eprintln!("{}", String::from_utf8_lossy(&output.stderr));
2482 use colored::Colorize;
2483 eprintln!("warning: no pager configured, falling back to unified diff");
2485 "help: try configuring a git pager (e.g. `delta`) with `git config --global core.pager delta`"
2487 let mut out = io::stdout();
2488 let mut diff = BufReader::new(File::open(&diff_filename).unwrap());
2489 let mut line = Vec::new();
2492 match diff.read_until(b'\n', &mut line) {
2495 Err(e) => eprintln!("ERROR: {:?}", e),
2497 match String::from_utf8(line.clone()) {
2499 if line.starts_with("+") {
2500 write!(&mut out, "{}", line.green()).unwrap();
2501 } else if line.starts_with("-") {
2502 write!(&mut out, "{}", line.red()).unwrap();
2503 } else if line.starts_with("@") {
2504 write!(&mut out, "{}", line.blue()).unwrap();
2506 out.write_all(line.as_bytes()).unwrap();
2510 write!(&mut out, "{}", String::from_utf8_lossy(&line).reversed()).unwrap();
2517 fn run_rustdoc_json_test(&self) {
2518 //FIXME: Add bless option.
2520 assert!(self.revision.is_none(), "revisions not relevant here");
2522 let out_dir = self.output_base_dir();
2523 let _ = fs::remove_dir_all(&out_dir);
2524 create_dir_all(&out_dir).unwrap();
2526 let proc_res = self.document(&out_dir);
2527 if !proc_res.status.success() {
2528 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2531 let root = self.config.find_rust_src_root().unwrap();
2532 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2533 json_out.set_extension("json");
2534 let res = self.cmd2procres(
2535 Command::new(self.config.jsondocck_path.as_ref().unwrap())
2537 .arg(root.join(&out_dir))
2539 .arg(&self.testpaths.file),
2542 if !res.status.success() {
2543 self.fatal_proc_rec_with_ctx("jsondocck failed!", &res, |_| {
2544 println!("Rustdoc Output:");
2545 proc_res.print_info();
2549 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2550 json_out.set_extension("json");
2552 let res = self.cmd2procres(
2553 Command::new(self.config.jsondoclint_path.as_ref().unwrap()).arg(&json_out),
2556 if !res.status.success() {
2557 self.fatal_proc_rec("jsondoclint failed!", &res);
2561 fn get_lines<P: AsRef<Path>>(
2564 mut other_files: Option<&mut Vec<String>>,
2566 let content = fs::read_to_string(&path).unwrap();
2567 let mut ignore = false;
2571 .filter_map(|(line_nb, line)| {
2572 if (line.trim_start().starts_with("pub mod ")
2573 || line.trim_start().starts_with("mod "))
2574 && line.ends_with(';')
2576 if let Some(ref mut other_files) = other_files {
2577 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2581 let sline = line.rsplit("///").next().unwrap();
2582 let line = sline.trim_start();
2583 if line.starts_with("```") {
2599 fn check_rustdoc_test_option(&self, res: ProcRes) {
2600 let mut other_files = Vec::new();
2601 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2602 let cwd = env::current_dir().unwrap();
2607 .unwrap_or(&self.testpaths.file)
2610 .replace('\\', "/"),
2611 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2613 for other_file in other_files {
2614 let mut path = self.testpaths.file.clone();
2615 path.set_file_name(&format!("{}.rs", other_file));
2617 path.strip_prefix(&cwd).unwrap_or(&path).to_str().unwrap().replace('\\', "/"),
2618 self.get_lines(&path, None),
2623 for _ in res.stdout.split('\n').filter(|s| s.starts_with("test ")).inspect(|s| {
2624 if let Some((left, right)) = s.split_once(" - ") {
2625 let path = left.rsplit("test ").next().unwrap();
2626 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2628 let mut iter = right.split("(line ");
2638 if let Ok(pos) = v.binary_search(&line) {
2641 self.fatal_proc_rec(
2642 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2650 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2652 for (entry, v) in &files {
2654 self.fatal_proc_rec(
2656 "Not found test at line{} \"{}\":{:?}",
2657 if v.len() > 1 { "s" } else { "" },
2668 fn run_codegen_units_test(&self) {
2669 assert!(self.revision.is_none(), "revisions not relevant here");
2671 let proc_res = self.compile_test(WillExecute::No, Emit::None);
2673 if !proc_res.status.success() {
2674 self.fatal_proc_rec("compilation failed!", &proc_res);
2677 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
2679 const PREFIX: &str = "MONO_ITEM ";
2680 const CGU_MARKER: &str = "@@";
2682 let actual: Vec<MonoItem> = proc_res
2685 .filter(|line| line.starts_with(PREFIX))
2686 .map(|line| str_to_mono_item(line, true))
2689 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2691 .map(|e| str_to_mono_item(&e.msg[..], false))
2694 let mut missing = Vec::new();
2695 let mut wrong_cgus = Vec::new();
2697 for expected_item in &expected {
2698 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2700 if let Some(actual_item) = actual_item_with_same_name {
2701 if !expected_item.codegen_units.is_empty() &&
2702 // Also check for codegen units
2703 expected_item.codegen_units != actual_item.codegen_units
2705 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2708 missing.push(expected_item.string.clone());
2712 let unexpected: Vec<_> = actual
2714 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2715 .map(|acgu| acgu.string.clone())
2718 if !missing.is_empty() {
2721 println!("\nThese items should have been contained but were not:\n");
2723 for item in &missing {
2724 println!("{}", item);
2730 if !unexpected.is_empty() {
2732 let mut sorted = unexpected.clone();
2737 println!("\nThese items were contained but should not have been:\n");
2739 for item in sorted {
2740 println!("{}", item);
2746 if !wrong_cgus.is_empty() {
2747 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2748 println!("\nThe following items were assigned to wrong codegen units:\n");
2750 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2751 println!("{}", expected_item.name);
2752 println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units));
2753 println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units));
2758 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2762 #[derive(Clone, Eq, PartialEq)]
2765 codegen_units: HashSet<String>,
2769 // [MONO_ITEM] name [@@ (cgu)+]
2770 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2771 let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() };
2773 let full_string = format!("{}{}", PREFIX, s);
2775 let parts: Vec<&str> =
2776 s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect();
2778 let name = parts[0].trim();
2780 let cgus = if parts.len() > 1 {
2781 let cgus_str = parts[1];
2786 .filter(|s| !s.is_empty())
2788 if cgu_has_crate_disambiguator {
2789 remove_crate_disambiguators_from_set_of_cgu_names(s)
2799 MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string }
2802 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2803 let mut cgus: Vec<_> = cgus.iter().collect();
2806 let mut string = String::new();
2808 string.push_str(&cgu[..]);
2809 string.push_str(" ");
2815 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2816 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2817 // remove all crate-disambiguators.
2818 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2820 static ref RE: Regex =
2821 Regex::new(r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?")
2826 RE.captures(cgu).unwrap_or_else(|| panic!("invalid cgu name encountered: {}", cgu));
2828 let mut new_name = cgu.to_owned();
2830 if let Some(d2) = captures.name("d2") {
2831 new_name.replace_range(d2.start()..d2.end(), "");
2834 let d1 = captures.name("d1").unwrap();
2835 new_name.replace_range(d1.start()..d1.end(), "");
2840 // The name of merged CGUs is constructed as the names of the original
2841 // CGUs joined with "--". This function splits such composite CGU names
2842 // and handles each component individually.
2843 fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String {
2845 .map(|cgu| remove_crate_disambiguator_from_cgu(cgu))
2846 .collect::<Vec<_>>()
2851 fn init_incremental_test(&self) {
2852 // (See `run_incremental_test` for an overview of how incremental tests work.)
2854 // Before any of the revisions have executed, create the
2855 // incremental workproduct directory. Delete any old
2856 // incremental work products that may be there from prior
2858 let incremental_dir = self.props.incremental_dir.as_ref().unwrap();
2859 if incremental_dir.exists() {
2860 // Canonicalizing the path will convert it to the //?/ format
2861 // on Windows, which enables paths longer than 260 character
2862 let canonicalized = incremental_dir.canonicalize().unwrap();
2863 fs::remove_dir_all(canonicalized).unwrap();
2865 fs::create_dir_all(&incremental_dir).unwrap();
2867 if self.config.verbose {
2868 println!("init_incremental_test: incremental_dir={}", incremental_dir.display());
2872 fn run_incremental_test(&self) {
2873 // Basic plan for a test incremental/foo/bar.rs:
2874 // - load list of revisions rpass1, cfail2, rpass3
2875 // - each should begin with `rpass`, `cfail`, or `rfail`
2876 // - if `rpass`, expect compile and execution to succeed
2877 // - if `cfail`, expect compilation to fail
2878 // - if `rfail`, expect execution to fail
2879 // - create a directory build/foo/bar.incremental
2880 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1
2881 // - because name of revision starts with "rpass", expect success
2882 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2
2883 // - because name of revision starts with "cfail", expect an error
2884 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2885 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3
2886 // - because name of revision starts with "rpass", expect success
2887 // - execute build/foo/bar.exe and save output
2889 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2890 // to #[rustc_dirty] and clean tests I guess
2892 let revision = self.revision.expect("incremental tests require a list of revisions");
2894 // Incremental workproduct directory should have already been created.
2895 let incremental_dir = self.props.incremental_dir.as_ref().unwrap();
2896 assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir");
2898 if self.config.verbose {
2899 print!("revision={:?} props={:#?}", revision, self.props);
2902 if revision.starts_with("rpass") {
2903 if self.props.should_ice {
2904 self.fatal("can only use should-ice in cfail tests");
2906 self.run_rpass_test();
2907 } else if revision.starts_with("rfail") {
2908 if self.props.should_ice {
2909 self.fatal("can only use should-ice in cfail tests");
2911 self.run_rfail_test();
2912 } else if revision.starts_with("cfail") {
2913 self.run_cfail_test();
2915 self.fatal("revision name must begin with rpass, rfail, or cfail");
2919 fn run_rmake_test(&self) {
2920 let cwd = env::current_dir().unwrap();
2921 let src_root = self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
2922 let src_root = cwd.join(&src_root);
2924 let tmpdir = cwd.join(self.output_base_name());
2925 if tmpdir.exists() {
2926 self.aggressive_rm_rf(&tmpdir).unwrap();
2928 create_dir_all(&tmpdir).unwrap();
2930 let host = &self.config.host;
2931 let make = if host.contains("dragonfly")
2932 || host.contains("freebsd")
2933 || host.contains("netbsd")
2934 || host.contains("openbsd")
2941 let mut cmd = Command::new(make);
2942 cmd.current_dir(&self.testpaths.file)
2943 .stdout(Stdio::piped())
2944 .stderr(Stdio::piped())
2945 .env("TARGET", &self.config.target)
2946 .env("PYTHON", &self.config.python)
2948 .env("RUST_BUILD_STAGE", &self.config.stage_id)
2949 .env("RUSTC", cwd.join(&self.config.rustc_path))
2950 .env("TMPDIR", &tmpdir)
2951 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
2952 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
2953 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
2954 .env("LLVM_COMPONENTS", &self.config.llvm_components)
2955 // We for sure don't want these tests to run in parallel, so make
2956 // sure they don't have access to these vars if we run via `make`
2958 .env_remove("MAKEFLAGS")
2959 .env_remove("MFLAGS")
2960 .env_remove("CARGO_MAKEFLAGS");
2962 if let Some(ref rustdoc) = self.config.rustdoc_path {
2963 cmd.env("RUSTDOC", cwd.join(rustdoc));
2966 if let Some(ref rust_demangler) = self.config.rust_demangler_path {
2967 cmd.env("RUST_DEMANGLER", cwd.join(rust_demangler));
2970 if let Some(ref node) = self.config.nodejs {
2971 cmd.env("NODE", node);
2974 if let Some(ref linker) = self.config.linker {
2975 cmd.env("RUSTC_LINKER", linker);
2978 if let Some(ref clang) = self.config.run_clang_based_tests_with {
2979 cmd.env("CLANG", clang);
2982 if let Some(ref filecheck) = self.config.llvm_filecheck {
2983 cmd.env("LLVM_FILECHECK", filecheck);
2986 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
2987 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
2990 if let Some(ref remote_test_client) = self.config.remote_test_client {
2991 cmd.env("REMOTE_TEST_CLIENT", remote_test_client);
2994 // We don't want RUSTFLAGS set from the outside to interfere with
2995 // compiler flags set in the test cases:
2996 cmd.env_remove("RUSTFLAGS");
2998 // Use dynamic musl for tests because static doesn't allow creating dylibs
2999 if self.config.host.contains("musl") {
3000 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1");
3003 if self.config.bless {
3004 cmd.env("RUSTC_BLESS_TEST", "--bless");
3005 // Assume this option is active if the environment variable is "defined", with _any_ value.
3006 // As an example, a `Makefile` can use this option by:
3008 // ifdef RUSTC_BLESS_TEST
3009 // cp "$(TMPDIR)"/actual_something.ext expected_something.ext
3011 // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext
3015 if self.config.target.contains("msvc") && self.config.cc != "" {
3016 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
3017 // and that `lib.exe` lives next to it.
3018 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
3020 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
3021 // a path and instead passes `C:\msys64\foo`, so convert all
3022 // `/`-arguments to MSVC here to `-` arguments.
3027 .map(|s| s.replace("/", "-"))
3028 .collect::<Vec<_>>()
3034 .map(|s| s.replace("/", "-"))
3035 .collect::<Vec<_>>()
3038 cmd.env("IS_MSVC", "1")
3039 .env("IS_WINDOWS", "1")
3040 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
3041 .env("CC", format!("'{}' {}", self.config.cc, cflags))
3042 .env("CXX", format!("'{}' {}", &self.config.cxx, cxxflags));
3044 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
3045 .env("CXX", format!("{} {}", self.config.cxx, self.config.cxxflags))
3046 .env("AR", &self.config.ar);
3048 if self.config.target.contains("windows") {
3049 cmd.env("IS_WINDOWS", "1");
3053 let output = self.read2_abbreviated(cmd.spawn().expect("failed to spawn `make`"));
3054 if !output.status.success() {
3056 status: output.status,
3057 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
3058 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
3059 cmdline: format!("{:?}", cmd),
3061 self.fatal_proc_rec("make failed", &res);
3065 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
3066 for e in path.read_dir()? {
3068 let path = entry.path();
3069 if entry.file_type()?.is_dir() {
3070 self.aggressive_rm_rf(&path)?;
3072 // Remove readonly files as well on windows (by default we can't)
3073 fs::remove_file(&path).or_else(|e| {
3074 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
3075 let mut meta = entry.metadata()?.permissions();
3076 meta.set_readonly(false);
3077 fs::set_permissions(&path, meta)?;
3078 fs::remove_file(&path)
3085 fs::remove_dir(path)
3088 fn run_js_doc_test(&self) {
3089 if let Some(nodejs) = &self.config.nodejs {
3090 let out_dir = self.output_base_dir();
3092 self.document(&out_dir);
3094 let root = self.config.find_rust_src_root().unwrap();
3096 self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem");
3097 let res = self.cmd2procres(
3098 Command::new(&nodejs)
3099 .arg(root.join("src/tools/rustdoc-js/tester.js"))
3100 .arg("--doc-folder")
3102 .arg("--crate-name")
3103 .arg(file_stem.replace("-", "_"))
3105 .arg(self.testpaths.file.with_extension("js")),
3107 if !res.status.success() {
3108 self.fatal_proc_rec("rustdoc-js test failed!", &res);
3111 self.fatal("no nodeJS");
3115 fn load_compare_outputs(
3118 output_kind: TestOutput,
3119 explicit_format: bool,
3121 let stderr_bits = format!("{}bit.stderr", self.config.get_pointer_width());
3122 let (stderr_kind, stdout_kind) = match output_kind {
3123 TestOutput::Compile => (
3125 if self.props.stderr_per_bitwidth { &stderr_bits } else { UI_STDERR }
3129 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT),
3132 let expected_stderr = self.load_expected_output(stderr_kind);
3133 let expected_stdout = self.load_expected_output(stdout_kind);
3135 let normalized_stdout = match output_kind {
3136 TestOutput::Run if self.config.remote_test_client.is_some() => {
3137 // When tests are run using the remote-test-client, the string
3138 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
3139 // is printed to stdout by the client and then captured in the ProcRes,
3140 // so it needs to be removed when comparing the run-pass test execution output
3142 static ref REMOTE_TEST_RE: Regex = Regex::new(
3143 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-.]+)+\", waiting for result\n"
3149 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3154 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3157 let stderr = if explicit_format {
3158 proc_res.stderr.clone()
3160 json::extract_rendered(&proc_res.stderr)
3163 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3166 TestOutput::Compile => {
3167 if !self.props.dont_check_compiler_stdout {
3169 self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3171 if !self.props.dont_check_compiler_stderr {
3173 self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3176 TestOutput::Run => {
3177 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3178 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3184 fn run_ui_test(&self) {
3185 if let Some(FailMode::Build) = self.props.fail_mode {
3186 // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck).
3187 let pm = Some(PassMode::Check);
3188 let proc_res = self.compile_test_general(WillExecute::No, Emit::Metadata, pm);
3189 self.check_if_test_should_compile(&proc_res, pm);
3192 let pm = self.pass_mode();
3193 let should_run = self.should_run(pm);
3194 let emit_metadata = self.should_emit_metadata(pm);
3195 let proc_res = self.compile_test(should_run, emit_metadata);
3196 self.check_if_test_should_compile(&proc_res, pm);
3198 // if the user specified a format in the ui test
3199 // print the output to the stderr file, otherwise extract
3200 // the rendered error messages from json and print them
3201 let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format"));
3203 let expected_fixed = self.load_expected_output(UI_FIXED);
3205 self.check_and_prune_duplicate_outputs(&proc_res, &[], &[]);
3207 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3208 let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr);
3210 if self.config.compare_mode.is_some() {
3211 // don't test rustfix with nll right now
3212 } else if self.config.rustfix_coverage {
3213 // Find out which tests have `MachineApplicable` suggestions but are missing
3214 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3216 // This will return an empty `Vec` in case the executed test file has a
3217 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3218 let suggestions = get_suggestions_from_json(
3221 Filter::MachineApplicableOnly,
3223 .unwrap_or_default();
3224 if !suggestions.is_empty()
3225 && !self.props.run_rustfix
3226 && !self.props.rustfix_only_machine_applicable
3228 let mut coverage_file_path = self.config.build_base.clone();
3229 coverage_file_path.push("rustfix_missing_coverage.txt");
3230 debug!("coverage_file_path: {}", coverage_file_path.display());
3232 let mut file = OpenOptions::new()
3235 .open(coverage_file_path.as_path())
3236 .expect("could not create or open file");
3238 if writeln!(file, "{}", self.testpaths.file.display()).is_err() {
3239 panic!("couldn't write to {}", coverage_file_path.display());
3242 } else if self.props.run_rustfix {
3243 // Apply suggestions from rustc to the code itself
3244 let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap();
3245 let suggestions = get_suggestions_from_json(
3248 if self.props.rustfix_only_machine_applicable {
3249 Filter::MachineApplicableOnly
3255 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|e| {
3257 "failed to apply suggestions for {:?} with rustfix: {}",
3258 self.testpaths.file, e
3262 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3263 } else if !expected_fixed.is_empty() {
3265 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3271 println!("To update references, rerun the tests and pass the `--bless` flag");
3272 let relative_path_to_file =
3273 self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap());
3275 "To only update this specific test, also pass `--test-args {}`",
3276 relative_path_to_file.display(),
3278 self.fatal_proc_rec(
3279 &format!("{} errors occurred comparing output.", errors),
3284 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3286 if let WillExecute::Yes = should_run {
3287 let proc_res = self.exec_compiled_test();
3288 let run_output_errors = if self.props.check_run_results {
3289 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3293 if run_output_errors > 0 {
3294 self.fatal_proc_rec(
3295 &format!("{} errors occurred comparing run output.", run_output_errors),
3299 if self.should_run_successfully(pm) {
3300 if !proc_res.status.success() {
3301 self.fatal_proc_rec("test run failed!", &proc_res);
3303 } else if proc_res.status.success() {
3304 self.fatal_proc_rec("test run succeeded!", &proc_res);
3307 if !self.props.error_patterns.is_empty() || !self.props.regex_error_patterns.is_empty()
3309 // "// error-pattern" comments
3310 let output_to_check = self.get_output(&proc_res);
3311 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
3316 "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3317 proc_res.status={:?} props.error_patterns={:?}",
3319 self.config.compare_mode,
3322 self.props.error_patterns
3324 if !explicit && self.config.compare_mode.is_none() {
3325 let check_patterns = should_run == WillExecute::No
3326 && (!self.props.error_patterns.is_empty()
3327 || !self.props.regex_error_patterns.is_empty());
3329 let check_annotations = !check_patterns || !expected_errors.is_empty();
3332 // "// error-pattern" comments
3333 let output_to_check = self.get_output(&proc_res);
3334 self.check_all_error_patterns(&output_to_check, &proc_res, pm);
3337 if check_annotations {
3338 // "//~ERROR comments"
3339 self.check_expected_errors(expected_errors, &proc_res);
3343 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3344 // And finally, compile the fixed code and make sure it both
3345 // succeeds and has no diagnostics.
3346 let rustc = self.make_compile_args(
3347 &self.testpaths.file.with_extension(UI_FIXED),
3348 TargetLocation::ThisFile(self.make_exe_name()),
3353 let res = self.compose_and_run_compiler(rustc, None);
3354 if !res.status.success() {
3355 self.fatal_proc_rec("failed to compile fixed code", &res);
3357 if !res.stderr.is_empty()
3358 && !self.props.rustfix_only_machine_applicable
3359 && !json::rustfix_diagnostics_only(&res.stderr).is_empty()
3361 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3366 fn run_mir_opt_test(&self) {
3367 let pm = self.pass_mode();
3368 let should_run = self.should_run(pm);
3369 let emit_metadata = self.should_emit_metadata(pm);
3370 let proc_res = self.compile_test(should_run, emit_metadata);
3372 if !proc_res.status.success() {
3373 self.fatal_proc_rec("compilation failed!", &proc_res);
3376 self.check_mir_dump();
3378 if let WillExecute::Yes = should_run {
3379 let proc_res = self.exec_compiled_test();
3381 if !proc_res.status.success() {
3382 self.fatal_proc_rec("test run failed!", &proc_res);
3387 fn check_mir_dump(&self) {
3388 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3390 let test_dir = self.testpaths.file.parent().unwrap();
3392 self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace("-", "_");
3394 let mut bit_width = String::new();
3395 if test_file_contents.lines().any(|l| l == "// EMIT_MIR_FOR_EACH_BIT_WIDTH") {
3396 bit_width = format!(".{}bit", self.config.get_pointer_width());
3399 if self.config.bless {
3401 glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, bit_width)).unwrap()
3403 std::fs::remove_file(e.unwrap()).unwrap();
3406 glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, bit_width)).unwrap()
3408 std::fs::remove_file(e.unwrap()).unwrap();
3412 let files = miropt_test_tools::files_for_miropt_test(
3413 &self.testpaths.file,
3414 self.config.get_pointer_width(),
3417 for miropt_test_tools::MiroptTestFiles { from_file, to_file, expected_file } in files {
3418 let dumped_string = if let Some(after) = to_file {
3419 self.diff_mir_files(from_file.into(), after.into())
3421 let mut output_file = PathBuf::new();
3422 output_file.push(self.get_mir_dump_dir());
3423 output_file.push(&from_file);
3425 "comparing the contents of: {} with {}",
3426 output_file.display(),
3427 expected_file.display()
3429 if !output_file.exists() {
3431 "Output file `{}` from test does not exist, available files are in `{}`",
3432 output_file.display(),
3433 output_file.parent().unwrap().display()
3436 self.check_mir_test_timestamp(&from_file, &output_file);
3437 let dumped_string = fs::read_to_string(&output_file).unwrap();
3438 self.normalize_output(&dumped_string, &[])
3441 if self.config.bless {
3442 let _ = std::fs::remove_file(&expected_file);
3443 std::fs::write(expected_file, dumped_string.as_bytes()).unwrap();
3445 if !expected_file.exists() {
3446 panic!("Output file `{}` from test does not exist", expected_file.display());
3448 let expected_string = fs::read_to_string(&expected_file).unwrap();
3449 if dumped_string != expected_string {
3450 print!("{}", write_diff(&expected_string, &dumped_string, 3));
3452 "Actual MIR output differs from expected MIR output {}",
3453 expected_file.display()
3460 fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String {
3461 let to_full_path = |path: PathBuf| {
3462 let full = self.get_mir_dump_dir().join(&path);
3465 "the mir dump file for {} does not exist (requested in {})",
3467 self.testpaths.file.display(),
3472 let before = to_full_path(before);
3473 let after = to_full_path(after);
3474 debug!("comparing the contents of: {} with {}", before.display(), after.display());
3475 let before = fs::read_to_string(before).unwrap();
3476 let after = fs::read_to_string(after).unwrap();
3477 let before = self.normalize_output(&before, &[]);
3478 let after = self.normalize_output(&after, &[]);
3479 let mut dumped_string = String::new();
3480 for result in diff::lines(&before, &after) {
3481 use std::fmt::Write;
3483 diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(),
3484 diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(),
3485 diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(),
3491 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3492 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3493 let source_file = &self.testpaths.file;
3494 let output_time = t(output_file);
3495 let source_time = t(source_file);
3496 if source_time > output_time {
3497 debug!("source file time: {:?} output file time: {:?}", source_time, output_time);
3499 "test source file `{}` is newer than potentially stale output file `{}`.",
3500 source_file.display(),
3506 fn get_mir_dump_dir(&self) -> PathBuf {
3507 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3508 debug!("input_file: {:?}", self.testpaths.file);
3509 mir_dump_dir.push(&self.testpaths.relative_dir);
3510 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3514 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3515 let cflags = self.props.compile_flags.join(" ");
3516 let json = cflags.contains("--error-format json")
3517 || cflags.contains("--error-format pretty-json")
3518 || cflags.contains("--error-format=json")
3519 || cflags.contains("--error-format=pretty-json")
3520 || cflags.contains("--output-format json")
3521 || cflags.contains("--output-format=json");
3523 let mut normalized = output.to_string();
3525 let mut normalize_path = |from: &Path, to: &str| {
3526 let mut from = from.display().to_string();
3528 from = from.replace("\\", "\\\\");
3530 normalized = normalized.replace(&from, to);
3533 let parent_dir = self.testpaths.file.parent().unwrap();
3534 normalize_path(parent_dir, "$DIR");
3536 let source_bases = &[
3537 // Source base on the current filesystem (calculated as parent of `src/test/$suite`):
3538 Some(self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap().into()),
3539 // Source base on the sysroot (from the src components downloaded by `download-rustc`):
3540 Some(self.config.sysroot_base.join("lib").join("rustlib").join("src").join("rust")),
3541 // Virtual `/rustc/$sha` remapped paths (if `remap-debuginfo` is enabled):
3542 option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR").map(PathBuf::from),
3543 // Virtual `/rustc/$sha` coming from download-rustc:
3544 std::env::var_os("FAKE_DOWNLOAD_RUSTC_PREFIX").map(PathBuf::from),
3545 // Tests using -Zsimulate-remapped-rust-src-base should use this fake path
3546 Some("/rustc/FAKE_PREFIX".into()),
3548 for base_dir in source_bases {
3549 if let Some(base_dir) = base_dir {
3550 // Paths into the libstd/libcore
3551 normalize_path(&base_dir.join("library"), "$SRC_DIR");
3552 // `ui-fulldeps` tests can show paths to the compiler source when testing macros from
3554 // eg. /home/user/rust/compiler
3555 normalize_path(&base_dir.join("compiler"), "$COMPILER_DIR");
3559 // Paths into the build directory
3560 let test_build_dir = &self.config.build_base;
3561 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3563 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3564 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3565 // eg. /home/user/rust/build
3566 normalize_path(parent_build_dir, "$BUILD_DIR");
3568 // Paths into lib directory.
3569 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3572 // escaped newlines in json strings should be readable
3573 // in the stderr files. There's no point int being correct,
3574 // since only humans process the stderr files.
3575 // Thus we just turn escaped newlines back into newlines.
3576 normalized = normalized.replace("\\n", "\n");
3579 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3580 // with placeholders as we do not want tests needing updated when compiler source code
3582 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3584 static ref SRC_DIR_RE: Regex =
3585 Regex::new("SRC_DIR(.+):\\d+:\\d+(: \\d+:\\d+)?").unwrap();
3588 normalized = SRC_DIR_RE.replace_all(&normalized, "SRC_DIR$1:LL:COL").into_owned();
3590 normalized = Self::normalize_platform_differences(&normalized);
3591 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3593 // Remove test annotations like `//~ ERROR text` from the output,
3594 // since they duplicate actual errors and make the output hard to read.
3595 // This mirrors the regex in src/tools/tidy/src/style.rs, please update
3596 // both if either are changed.
3598 static ref ANNOTATION_RE: Regex = Regex::new("\\s*//(\\[.*\\])?~.*").unwrap();
3601 normalized = ANNOTATION_RE.replace_all(&normalized, "").into_owned();
3603 // This code normalizes various hashes in v0 symbol mangling that is
3604 // emitted in the ui and mir-opt tests.
3606 static ref V0_CRATE_HASH_PREFIX_RE: Regex =
3607 Regex::new(r"_R.*?Cs[0-9a-zA-Z]+_").unwrap();
3608 static ref V0_CRATE_HASH_RE: Regex = Regex::new(r"Cs[0-9a-zA-Z]+_").unwrap();
3611 const V0_CRATE_HASH_PLACEHOLDER: &str = r"CsCRATE_HASH_";
3612 if V0_CRATE_HASH_PREFIX_RE.is_match(&normalized) {
3613 // Normalize crate hash
3615 V0_CRATE_HASH_RE.replace_all(&normalized, V0_CRATE_HASH_PLACEHOLDER).into_owned();
3619 static ref V0_BACK_REF_PREFIX_RE: Regex = Regex::new(r"\(_R.*?B[0-9a-zA-Z]_").unwrap();
3620 static ref V0_BACK_REF_RE: Regex = Regex::new(r"B[0-9a-zA-Z]_").unwrap();
3623 const V0_BACK_REF_PLACEHOLDER: &str = r"B<REF>_";
3624 if V0_BACK_REF_PREFIX_RE.is_match(&normalized) {
3625 // Normalize back references (see RFC 2603)
3627 V0_BACK_REF_RE.replace_all(&normalized, V0_BACK_REF_PLACEHOLDER).into_owned();
3630 // Custom normalization rules
3631 for rule in custom_rules {
3632 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3633 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3638 /// Normalize output differences across platforms. Generally changes Windows output to be more
3641 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3643 fn normalize_platform_differences(output: &str) -> String {
3645 /// Used to find Windows paths.
3647 /// It's not possible to detect paths in the error messages generally, but this is a
3648 /// decent enough heuristic.
3649 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3651 # Match paths that don't include spaces.
3652 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3654 # If the path starts with a well-known root, then allow spaces.
3655 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3660 let output = output.replace(r"\\", r"\");
3663 .replace_all(&output, |caps: &Captures<'_>| {
3664 println!("{}", &caps[0]);
3665 caps[0].replace(r"\", "/")
3667 .replace("\r\n", "\n")
3670 fn expected_output_path(&self, kind: &str) -> PathBuf {
3672 expected_output_path(&self.testpaths, self.revision, &self.config.compare_mode, kind);
3675 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3676 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3681 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3687 fn load_expected_output(&self, kind: &str) -> String {
3688 let path = self.expected_output_path(kind);
3690 match self.load_expected_output_from_path(&path) {
3692 Err(x) => self.fatal(&x),
3699 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3700 fs::read_to_string(path).map_err(|err| {
3701 format!("failed to load expected output from `{}`: {}", path.display(), err)
3705 fn delete_file(&self, file: &PathBuf) {
3707 // Deleting a nonexistent file would error.
3710 if let Err(e) = fs::remove_file(file) {
3711 self.fatal(&format!("failed to delete `{}`: {}", file.display(), e,));
3715 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3716 if actual == expected {
3720 if !self.config.bless {
3721 if expected.is_empty() {
3722 println!("normalized {}:\n{}\n", kind, actual);
3724 println!("diff of {}:\n", kind);
3725 print!("{}", write_diff(expected, actual, 3));
3729 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3730 let output_file = self
3732 .with_extra_extension(self.revision.unwrap_or(""))
3733 .with_extra_extension(mode)
3734 .with_extra_extension(kind);
3736 let mut files = vec![output_file];
3737 if self.config.bless {
3738 // Delete non-revision .stderr/.stdout file if revisions are used.
3739 // Without this, we'd just generate the new files and leave the old files around.
3740 if self.revision.is_some() {
3742 expected_output_path(self.testpaths, None, &self.config.compare_mode, kind);
3743 self.delete_file(&old);
3745 files.push(expected_output_path(
3748 &self.config.compare_mode,
3753 for output_file in &files {
3754 if actual.is_empty() {
3755 self.delete_file(output_file);
3756 } else if let Err(err) = fs::write(&output_file, &actual) {
3757 self.fatal(&format!(
3758 "failed to write {} to `{}`: {}",
3760 output_file.display(),
3766 println!("\nThe actual {0} differed from the expected {0}.", kind);
3767 for output_file in files {
3768 println!("Actual {} saved to {}", kind, output_file.display());
3770 if self.config.bless { 0 } else { 1 }
3773 fn check_and_prune_duplicate_outputs(
3776 modes: &[CompareMode],
3777 require_same_modes: &[CompareMode],
3779 for kind in UI_EXTENSIONS {
3780 let canon_comparison_path =
3781 expected_output_path(&self.testpaths, self.revision, &None, kind);
3783 let canon = match self.load_expected_output_from_path(&canon_comparison_path) {
3787 let bless = self.config.bless;
3788 let check_and_prune_duplicate_outputs = |mode: &CompareMode, require_same: bool| {
3790 expected_output_path(&self.testpaths, self.revision, &Some(mode.clone()), kind);
3792 // If there is no output, there is nothing to do
3793 let examined_content = match self.load_expected_output_from_path(&examined_path) {
3794 Ok(content) => content,
3798 let is_duplicate = canon == examined_content;
3800 match (bless, require_same, is_duplicate) {
3801 // If we're blessing and the output is the same, then delete the file.
3802 (true, _, true) => {
3803 self.delete_file(&examined_path);
3805 // If we want them to be the same, but they are different, then error.
3806 // We do this wether we bless or not
3807 (_, true, false) => {
3808 self.fatal_proc_rec(
3809 &format!("`{}` should not have different output from base test!", kind),
3817 check_and_prune_duplicate_outputs(mode, false);
3819 for mode in require_same_modes {
3820 check_and_prune_duplicate_outputs(mode, true);
3825 fn create_stamp(&self) {
3826 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3827 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3836 pub struct ProcRes {
3844 pub fn print_info(&self) {
3845 fn render(name: &str, contents: &str) -> String {
3846 let contents = json::extract_rendered(contents);
3847 let contents = contents.trim();
3848 if contents.is_empty() {
3849 format!("{name}: none")
3853 --- {name} -------------------------------\n\
3855 ------------------------------------------",
3861 "status: {}\ncommand: {}\n{}\n{}\n",
3864 render("stdout", &self.stdout),
3865 render("stderr", &self.stderr),
3869 pub fn fatal(&self, err: Option<&str>, on_failure: impl FnOnce()) -> ! {
3870 if let Some(e) = err {
3871 println!("\nerror: {}", e);
3875 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3876 // compiletest, which is unnecessary noise.
3877 std::panic::resume_unwind(Box::new(()));
3882 enum TargetLocation {
3884 ThisDirectory(PathBuf),