1 // ignore-tidy-filelength
3 use crate::common::{expected_output_path, UI_EXTENSIONS, UI_FIXED, UI_STDERR, UI_STDOUT};
4 use crate::common::{output_base_dir, output_base_name, output_testname_unique};
5 use crate::common::{Assembly, Incremental, JsDocTest, MirOpt, RunMake, RustdocJson, Ui};
6 use crate::common::{Codegen, CodegenUnits, DebugInfo, Debugger, Rustdoc};
7 use crate::common::{CompareMode, FailMode, PassMode};
8 use crate::common::{Config, TestPaths};
9 use crate::common::{Pretty, RunPassValgrind};
10 use crate::common::{UI_RUN_STDERR, UI_RUN_STDOUT};
11 use crate::errors::{self, Error, ErrorKind};
12 use crate::header::TestProps;
14 use crate::util::get_pointer_width;
15 use crate::util::{logv, PathBufExt};
16 use crate::ColorConfig;
17 use regex::{Captures, Regex};
18 use rustfix::{apply_suggestions, get_suggestions_from_json, Filter};
20 use std::collections::hash_map::DefaultHasher;
21 use std::collections::{HashMap, HashSet, VecDeque};
23 use std::ffi::{OsStr, OsString};
24 use std::fs::{self, create_dir_all, File, OpenOptions};
25 use std::hash::{Hash, Hasher};
26 use std::io::prelude::*;
27 use std::io::{self, BufReader};
28 use std::path::{Path, PathBuf};
29 use std::process::{Child, Command, ExitStatus, Output, Stdio};
33 use lazy_static::lazy_static;
36 use crate::extract_gdb_version;
37 use crate::is_android_gdb_target;
43 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
45 use winapi::um::errhandlingapi::SetErrorMode;
46 use winapi::um::winbase::SEM_NOGPFAULTERRORBOX;
49 static ref LOCK: Mutex<()> = Mutex::new(());
51 // Error mode is a global variable, so lock it so only one thread will change it
52 let _lock = LOCK.lock().unwrap();
54 // Tell Windows to not show any UI on errors (such as terminating abnormally).
55 // This is important for running tests, since some of them use abnormal
56 // termination by design. This mode is inherited by all child processes.
58 let old_mode = SetErrorMode(SEM_NOGPFAULTERRORBOX); // read inherited flags
59 SetErrorMode(old_mode | SEM_NOGPFAULTERRORBOX);
61 SetErrorMode(old_mode);
67 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
71 /// The name of the environment variable that holds dynamic library locations.
72 pub fn dylib_env_var() -> &'static str {
75 } else if cfg!(target_os = "macos") {
77 } else if cfg!(target_os = "haiku") {
84 /// The platform-specific library name
85 pub fn get_lib_name(lib: &str, dylib: bool) -> String {
86 // In some casess (e.g. MUSL), we build a static
87 // library, rather than a dynamic library.
88 // In this case, the only path we can pass
89 // with '--extern-meta' is the '.lib' file
91 return format!("lib{}.rlib", lib);
95 format!("{}.dll", lib)
96 } else if cfg!(target_os = "macos") {
97 format!("lib{}.dylib", lib)
99 format!("lib{}.so", lib)
103 #[derive(Debug, PartialEq)]
110 #[derive(Debug, PartialEq)]
111 pub struct Mismatch {
112 pub line_number: u32,
113 pub lines: Vec<DiffLine>,
117 fn new(line_number: u32) -> Mismatch {
118 Mismatch { line_number, lines: Vec::new() }
122 // Produces a diff between the expected output and actual output.
123 pub fn make_diff(expected: &str, actual: &str, context_size: usize) -> Vec<Mismatch> {
124 let mut line_number = 1;
125 let mut context_queue: VecDeque<&str> = VecDeque::with_capacity(context_size);
126 let mut lines_since_mismatch = context_size + 1;
127 let mut results = Vec::new();
128 let mut mismatch = Mismatch::new(0);
130 for result in diff::lines(expected, actual) {
132 diff::Result::Left(str) => {
133 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
134 results.push(mismatch);
135 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
138 while let Some(line) = context_queue.pop_front() {
139 mismatch.lines.push(DiffLine::Context(line.to_owned()));
142 mismatch.lines.push(DiffLine::Expected(str.to_owned()));
144 lines_since_mismatch = 0;
146 diff::Result::Right(str) => {
147 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
148 results.push(mismatch);
149 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
152 while let Some(line) = context_queue.pop_front() {
153 mismatch.lines.push(DiffLine::Context(line.to_owned()));
156 mismatch.lines.push(DiffLine::Resulting(str.to_owned()));
157 lines_since_mismatch = 0;
159 diff::Result::Both(str, _) => {
160 if context_queue.len() >= context_size {
161 let _ = context_queue.pop_front();
164 if lines_since_mismatch < context_size {
165 mismatch.lines.push(DiffLine::Context(str.to_owned()));
166 } else if context_size > 0 {
167 context_queue.push_back(str);
171 lines_since_mismatch += 1;
176 results.push(mismatch);
182 fn write_diff(expected: &str, actual: &str, context_size: usize) -> String {
184 let mut output = String::new();
185 let diff_results = make_diff(expected, actual, context_size);
186 for result in diff_results {
187 let mut line_number = result.line_number;
188 for line in result.lines {
190 DiffLine::Expected(e) => {
191 writeln!(output, "-\t{}", e).unwrap();
194 DiffLine::Context(c) => {
195 writeln!(output, "{}\t{}", line_number, c).unwrap();
198 DiffLine::Resulting(r) => {
199 writeln!(output, "+\t{}", r).unwrap();
203 writeln!(output).unwrap();
208 pub fn run(config: Config, testpaths: &TestPaths, revision: Option<&str>) {
209 match &*config.target {
210 "arm-linux-androideabi"
211 | "armv7-linux-androideabi"
212 | "thumbv7neon-linux-androideabi"
213 | "aarch64-linux-android" => {
214 if !config.adb_device_status {
215 panic!("android device not available");
220 // android has its own gdb handling
221 if config.debugger == Some(Debugger::Gdb) && config.gdb.is_none() {
222 panic!("gdb not available but debuginfo gdb debuginfo test requested");
228 // We're going to be dumping a lot of info. Start on a new line.
231 debug!("running {:?}", testpaths.file.display());
232 let props = TestProps::from_file(&testpaths.file, revision, &config);
234 let cx = TestCx { config: &config, props: &props, testpaths, revision };
235 create_dir_all(&cx.output_base_dir()).unwrap();
237 if config.mode == Incremental {
238 // Incremental tests are special because they cannot be run in
240 assert!(!props.revisions.is_empty(), "Incremental tests require revisions.");
241 cx.init_incremental_test();
242 for revision in &props.revisions {
243 let revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
244 let rev_cx = TestCx {
246 props: &revision_props,
248 revision: Some(revision),
250 rev_cx.run_revision();
259 pub fn compute_stamp_hash(config: &Config) -> String {
260 let mut hash = DefaultHasher::new();
261 config.stage_id.hash(&mut hash);
262 config.run.hash(&mut hash);
264 match config.debugger {
265 Some(Debugger::Cdb) => {
266 config.cdb.hash(&mut hash);
269 Some(Debugger::Gdb) => {
270 config.gdb.hash(&mut hash);
271 env::var_os("PATH").hash(&mut hash);
272 env::var_os("PYTHONPATH").hash(&mut hash);
275 Some(Debugger::Lldb) => {
276 config.lldb_python.hash(&mut hash);
277 config.lldb_python_dir.hash(&mut hash);
278 env::var_os("PATH").hash(&mut hash);
279 env::var_os("PYTHONPATH").hash(&mut hash);
285 if let Ui = config.mode {
286 config.force_pass_mode.hash(&mut hash);
289 format!("{:x}", hash.finish())
292 #[derive(Copy, Clone)]
293 struct TestCx<'test> {
294 config: &'test Config,
295 props: &'test TestProps,
296 testpaths: &'test TestPaths,
297 revision: Option<&'test str>,
300 struct DebuggerCommands {
301 commands: Vec<String>,
302 check_lines: Vec<String>,
303 breakpoint_lines: Vec<usize>,
316 /// Will this test be executed? Should we use `make_exe_name`?
317 #[derive(Copy, Clone, PartialEq)]
324 /// Should `--emit metadata` be used?
325 #[derive(Copy, Clone)]
331 impl<'test> TestCx<'test> {
332 /// Code executed for each revision in turn (or, if there are no
333 /// revisions, exactly once, with revision == None).
334 fn run_revision(&self) {
335 if self.props.should_ice {
336 if self.config.mode != Incremental {
337 self.fatal("cannot use should-ice in a test that is not cfail");
340 match self.config.mode {
341 RunPassValgrind => self.run_valgrind_test(),
342 Pretty => self.run_pretty_test(),
343 DebugInfo => self.run_debuginfo_test(),
344 Codegen => self.run_codegen_test(),
345 Rustdoc => self.run_rustdoc_test(),
346 RustdocJson => self.run_rustdoc_json_test(),
347 CodegenUnits => self.run_codegen_units_test(),
348 Incremental => self.run_incremental_test(),
349 RunMake => self.run_rmake_test(),
350 Ui => self.run_ui_test(),
351 MirOpt => self.run_mir_opt_test(),
352 Assembly => self.run_assembly_test(),
353 JsDocTest => self.run_js_doc_test(),
357 fn pass_mode(&self) -> Option<PassMode> {
358 self.props.pass_mode(self.config)
361 fn should_run(&self, pm: Option<PassMode>) -> WillExecute {
362 let test_should_run = match self.config.mode {
363 Ui if pm == Some(PassMode::Run) || self.props.fail_mode == Some(FailMode::Run) => true,
364 MirOpt if pm == Some(PassMode::Run) => true,
365 Ui | MirOpt => false,
366 mode => panic!("unimplemented for mode {:?}", mode),
368 if test_should_run { self.run_if_enabled() } else { WillExecute::No }
371 fn run_if_enabled(&self) -> WillExecute {
372 if self.config.run_enabled() { WillExecute::Yes } else { WillExecute::Disabled }
375 fn should_run_successfully(&self, pm: Option<PassMode>) -> bool {
376 match self.config.mode {
377 Ui | MirOpt => pm == Some(PassMode::Run),
378 mode => panic!("unimplemented for mode {:?}", mode),
382 fn should_compile_successfully(&self, pm: Option<PassMode>) -> bool {
383 match self.config.mode {
385 Ui => pm.is_some() || self.props.fail_mode > Some(FailMode::Build),
388 self.revision.expect("incremental tests require a list of revisions");
389 if revision.starts_with("rpass") || revision.starts_with("rfail") {
391 } else if revision.starts_with("cfail") {
392 // FIXME: would be nice if incremental revs could start with "cpass"
395 panic!("revision name must begin with rpass, rfail, or cfail");
398 mode => panic!("unimplemented for mode {:?}", mode),
402 fn check_if_test_should_compile(&self, proc_res: &ProcRes, pm: Option<PassMode>) {
403 if self.should_compile_successfully(pm) {
404 if !proc_res.status.success() {
405 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
408 if proc_res.status.success() {
410 &format!("{} test compiled successfully!", self.config.mode)[..],
415 self.check_correct_failure_status(proc_res);
419 fn run_cfail_test(&self) {
420 let pm = self.pass_mode();
421 let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm));
422 self.check_if_test_should_compile(&proc_res, pm);
423 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
425 let output_to_check = self.get_output(&proc_res);
426 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
427 if !expected_errors.is_empty() {
428 if !self.props.error_patterns.is_empty() {
429 self.fatal("both error pattern and expected errors specified");
431 self.check_expected_errors(expected_errors, &proc_res);
433 self.check_error_patterns(&output_to_check, &proc_res, pm);
435 if self.props.should_ice {
436 match proc_res.status.code() {
438 _ => self.fatal("expected ICE"),
442 self.check_forbid_output(&output_to_check, &proc_res);
445 fn run_rfail_test(&self) {
446 let pm = self.pass_mode();
447 let should_run = self.run_if_enabled();
448 let proc_res = self.compile_test(should_run, self.should_emit_metadata(pm));
450 if !proc_res.status.success() {
451 self.fatal_proc_rec("compilation failed!", &proc_res);
454 if let WillExecute::Disabled = should_run {
458 let proc_res = self.exec_compiled_test();
460 // The value our Makefile configures valgrind to return on failure
461 const VALGRIND_ERR: i32 = 100;
462 if proc_res.status.code() == Some(VALGRIND_ERR) {
463 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
466 let output_to_check = self.get_output(&proc_res);
467 self.check_correct_failure_status(&proc_res);
468 self.check_error_patterns(&output_to_check, &proc_res, pm);
471 fn get_output(&self, proc_res: &ProcRes) -> String {
472 if self.props.check_stdout {
473 format!("{}{}", proc_res.stdout, proc_res.stderr)
475 proc_res.stderr.clone()
479 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
480 let expected_status = Some(self.props.failure_status);
481 let received_status = proc_res.status.code();
483 if expected_status != received_status {
486 "Error: expected failure status ({:?}) but received status {:?}.",
487 expected_status, received_status
494 fn run_rpass_test(&self) {
495 let emit_metadata = self.should_emit_metadata(self.pass_mode());
496 let should_run = self.run_if_enabled();
497 let proc_res = self.compile_test(should_run, emit_metadata);
499 if !proc_res.status.success() {
500 self.fatal_proc_rec("compilation failed!", &proc_res);
503 if let WillExecute::Disabled = should_run {
507 // FIXME(#41968): Move this check to tidy?
508 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
510 expected_errors.is_empty(),
511 "run-pass tests with expected warnings should be moved to ui/"
514 let proc_res = self.exec_compiled_test();
515 if !proc_res.status.success() {
516 self.fatal_proc_rec("test run failed!", &proc_res);
520 fn run_valgrind_test(&self) {
521 assert!(self.revision.is_none(), "revisions not relevant here");
523 if self.config.valgrind_path.is_none() {
524 assert!(!self.config.force_valgrind);
525 return self.run_rpass_test();
528 let should_run = self.run_if_enabled();
529 let mut proc_res = self.compile_test(should_run, EmitMetadata::No);
531 if !proc_res.status.success() {
532 self.fatal_proc_rec("compilation failed!", &proc_res);
535 if let WillExecute::Disabled = should_run {
539 let mut new_config = self.config.clone();
540 new_config.runtool = new_config.valgrind_path.clone();
541 let new_cx = TestCx { config: &new_config, ..*self };
542 proc_res = new_cx.exec_compiled_test();
544 if !proc_res.status.success() {
545 self.fatal_proc_rec("test run failed!", &proc_res);
549 fn run_pretty_test(&self) {
550 if self.props.pp_exact.is_some() {
551 logv(self.config, "testing for exact pretty-printing".to_owned());
553 logv(self.config, "testing for converging pretty-printing".to_owned());
556 let rounds = match self.props.pp_exact {
561 let src = fs::read_to_string(&self.testpaths.file).unwrap();
562 let mut srcs = vec![src];
565 while round < rounds {
568 format!("pretty-printing round {} revision {:?}", round, self.revision),
571 if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) };
573 let proc_res = self.print_source(read_from, &self.props.pretty_mode);
574 if !proc_res.status.success() {
577 "pretty-printing failed in round {} revision {:?}",
584 let ProcRes { stdout, .. } = proc_res;
589 let mut expected = match self.props.pp_exact {
591 let filepath = self.testpaths.file.parent().unwrap().join(file);
592 fs::read_to_string(&filepath).unwrap()
594 None => srcs[srcs.len() - 2].clone(),
596 let mut actual = srcs[srcs.len() - 1].clone();
598 if self.props.pp_exact.is_some() {
599 // Now we have to care about line endings
600 let cr = "\r".to_owned();
601 actual = actual.replace(&cr, "");
602 expected = expected.replace(&cr, "");
605 self.compare_source(&expected, &actual);
607 // If we're only making sure that the output matches then just stop here
608 if self.props.pretty_compare_only {
612 // Finally, let's make sure it actually appears to remain valid code
613 let proc_res = self.typecheck_source(actual);
614 if !proc_res.status.success() {
615 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
618 if !self.props.pretty_expanded {
622 // additionally, run `--pretty expanded` and try to build it.
623 let proc_res = self.print_source(ReadFrom::Path, "expanded");
624 if !proc_res.status.success() {
625 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
628 let ProcRes { stdout: expanded_src, .. } = proc_res;
629 let proc_res = self.typecheck_source(expanded_src);
630 if !proc_res.status.success() {
631 self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res);
635 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
636 let aux_dir = self.aux_output_dir_name();
637 let input: &str = match read_from {
638 ReadFrom::Stdin(_) => "-",
639 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
642 let mut rustc = Command::new(&self.config.rustc_path);
645 .args(&["-Z", &format!("unpretty={}", pretty_type)])
646 .args(&["--target", &self.config.target])
649 .args(&self.props.compile_flags)
650 .envs(self.props.rustc_env.clone());
651 self.maybe_add_external_args(
653 self.split_maybe_args(&self.config.target_rustcflags),
656 let src = match read_from {
657 ReadFrom::Stdin(src) => Some(src),
658 ReadFrom::Path => None,
661 self.compose_and_run(
663 self.config.compile_lib_path.to_str().unwrap(),
664 Some(aux_dir.to_str().unwrap()),
669 fn compare_source(&self, expected: &str, actual: &str) {
670 if expected != actual {
672 "pretty-printed source does not match expected source\n\
674 ------------------------------------------\n\
676 ------------------------------------------\n\
678 ------------------------------------------\n\
680 ------------------------------------------\n\
682 ------------------------------------------\n\
686 write_diff(expected, actual, 3),
691 fn set_revision_flags(&self, cmd: &mut Command) {
692 if let Some(revision) = self.revision {
693 // Normalize revisions to be lowercase and replace `-`s with `_`s.
694 // Otherwise the `--cfg` flag is not valid.
695 let normalized_revision = revision.to_lowercase().replace("-", "_");
696 cmd.args(&["--cfg", &normalized_revision]);
700 fn typecheck_source(&self, src: String) -> ProcRes {
701 let mut rustc = Command::new(&self.config.rustc_path);
703 let out_dir = self.output_base_name().with_extension("pretty-out");
704 let _ = fs::remove_dir_all(&out_dir);
705 create_dir_all(&out_dir).unwrap();
707 let target = if self.props.force_host { &*self.config.host } else { &*self.config.target };
709 let aux_dir = self.aux_output_dir_name();
716 .arg(&format!("--target={}", target))
718 .arg(&self.config.build_base)
721 self.set_revision_flags(&mut rustc);
722 self.maybe_add_external_args(
724 self.split_maybe_args(&self.config.target_rustcflags),
726 rustc.args(&self.props.compile_flags);
728 self.compose_and_run_compiler(rustc, Some(src))
731 fn run_debuginfo_test(&self) {
732 match self.config.debugger.unwrap() {
733 Debugger::Cdb => self.run_debuginfo_cdb_test(),
734 Debugger::Gdb => self.run_debuginfo_gdb_test(),
735 Debugger::Lldb => self.run_debuginfo_lldb_test(),
739 fn run_debuginfo_cdb_test(&self) {
740 assert!(self.revision.is_none(), "revisions not relevant here");
742 let config = Config {
743 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
744 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
745 ..self.config.clone()
748 let test_cx = TestCx { config: &config, ..*self };
750 test_cx.run_debuginfo_cdb_test_no_opt();
753 fn run_debuginfo_cdb_test_no_opt(&self) {
754 // compile test file (it should have 'compile-flags:-g' in the header)
755 let should_run = self.run_if_enabled();
756 let compile_result = self.compile_test(should_run, EmitMetadata::No);
757 if !compile_result.status.success() {
758 self.fatal_proc_rec("compilation failed!", &compile_result);
760 if let WillExecute::Disabled = should_run {
764 let exe_file = self.make_exe_name();
767 static PREFIXES: &[&str] = &["cdb", "cdbg"];
768 // No "native rust support" variation for CDB yet.
772 // Parse debugger commands etc from test files
773 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
774 self.parse_debugger_commands(prefixes);
776 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
777 let mut script_str = String::with_capacity(2048);
778 script_str.push_str("version\n"); // List CDB (and more) version info in test output
779 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
781 // Set breakpoints on every line that contains the string "#break"
782 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
783 for line in &breakpoint_lines {
784 script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line));
787 // Append the other `cdb-command:`s
788 for line in &commands {
789 script_str.push_str(line);
790 script_str.push_str("\n");
793 script_str.push_str("\nqq\n"); // Quit the debugger (including remote debugger, if any)
795 // Write the script into a file
796 debug!("script_str = {}", script_str);
797 self.dump_output_file(&script_str, "debugger.script");
798 let debugger_script = self.make_out_name("debugger.script");
800 let cdb_path = &self.config.cdb.as_ref().unwrap();
801 let mut cdb = Command::new(cdb_path);
802 cdb.arg("-lines") // Enable source line debugging.
804 .arg(&debugger_script)
807 let debugger_run_result = self.compose_and_run(
809 self.config.run_lib_path.to_str().unwrap(),
814 if !debugger_run_result.status.success() {
815 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
818 self.check_debugger_output(&debugger_run_result, &check_lines);
821 fn run_debuginfo_gdb_test(&self) {
822 assert!(self.revision.is_none(), "revisions not relevant here");
824 let config = Config {
825 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
826 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
827 ..self.config.clone()
830 let test_cx = TestCx { config: &config, ..*self };
832 test_cx.run_debuginfo_gdb_test_no_opt();
835 fn run_debuginfo_gdb_test_no_opt(&self) {
836 let prefixes = if self.config.gdb_native_rust {
838 static PREFIXES: &[&str] = &["gdb", "gdbr"];
839 println!("NOTE: compiletest thinks it is using GDB with native rust support");
843 static PREFIXES: &[&str] = &["gdb", "gdbg"];
844 println!("NOTE: compiletest thinks it is using GDB without native rust support");
848 let DebuggerCommands { commands, check_lines, breakpoint_lines } =
849 self.parse_debugger_commands(prefixes);
850 let mut cmds = commands.join("\n");
852 // compile test file (it should have 'compile-flags:-g' in the header)
853 let should_run = self.run_if_enabled();
854 let compiler_run_result = self.compile_test(should_run, EmitMetadata::No);
855 if !compiler_run_result.status.success() {
856 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
858 if let WillExecute::Disabled = should_run {
862 let exe_file = self.make_exe_name();
864 let debugger_run_result;
865 if is_android_gdb_target(&self.config.target) {
866 cmds = cmds.replace("run", "continue");
868 let tool_path = match self.config.android_cross_path.to_str() {
869 Some(x) => x.to_owned(),
870 None => self.fatal("cannot find android cross path"),
873 // write debugger script
874 let mut script_str = String::with_capacity(2048);
875 script_str.push_str(&format!("set charset {}\n", Self::charset()));
876 script_str.push_str(&format!("set sysroot {}\n", tool_path));
877 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
878 script_str.push_str("target remote :5039\n");
879 script_str.push_str(&format!(
880 "set solib-search-path \
881 ./{}/stage2/lib/rustlib/{}/lib/\n",
882 self.config.host, self.config.target
884 for line in &breakpoint_lines {
888 self.testpaths.file.file_name().unwrap().to_string_lossy(),
893 script_str.push_str(&cmds);
894 script_str.push_str("\nquit\n");
896 debug!("script_str = {}", script_str);
897 self.dump_output_file(&script_str, "debugger.script");
899 let adb_path = &self.config.adb_path;
901 Command::new(adb_path)
904 .arg(&self.config.adb_test_dir)
906 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
908 Command::new(adb_path)
909 .args(&["forward", "tcp:5039", "tcp:5039"])
911 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
913 let adb_arg = format!(
914 "export LD_LIBRARY_PATH={}; \
915 gdbserver{} :5039 {}/{}",
916 self.config.adb_test_dir.clone(),
917 if self.config.target.contains("aarch64") { "64" } else { "" },
918 self.config.adb_test_dir.clone(),
919 exe_file.file_name().unwrap().to_str().unwrap()
922 debug!("adb arg: {}", adb_arg);
923 let mut adb = Command::new(adb_path)
924 .args(&["shell", &adb_arg])
925 .stdout(Stdio::piped())
926 .stderr(Stdio::inherit())
928 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
930 // Wait for the gdbserver to print out "Listening on port ..."
931 // at which point we know that it's started and then we can
932 // execute the debugger below.
933 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
934 let mut line = String::new();
937 stdout.read_line(&mut line).unwrap();
938 if line.starts_with("Listening on port 5039") {
944 let mut debugger_script = OsString::from("-command=");
945 debugger_script.push(self.make_out_name("debugger.script"));
946 let debugger_opts: &[&OsStr] =
947 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
949 let gdb_path = self.config.gdb.as_ref().unwrap();
950 let Output { status, stdout, stderr } = Command::new(&gdb_path)
953 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", gdb_path));
955 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
956 gdb.args(debugger_opts);
957 let cmdline = self.make_cmdline(&gdb, "");
958 logv(self.config, format!("executing {}", cmdline));
962 debugger_run_result = ProcRes {
964 stdout: String::from_utf8(stdout).unwrap(),
965 stderr: String::from_utf8(stderr).unwrap(),
968 if adb.kill().is_err() {
969 println!("Adb process is already finished.");
973 self.config.find_rust_src_root().expect("Could not find Rust source root");
974 let rust_pp_module_rel_path = Path::new("./src/etc");
975 let rust_pp_module_abs_path =
976 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
977 // write debugger script
978 let mut script_str = String::with_capacity(2048);
979 script_str.push_str(&format!("set charset {}\n", Self::charset()));
980 script_str.push_str("show version\n");
982 match self.config.gdb_version {
984 println!("NOTE: compiletest thinks it is using GDB version {}", version);
986 if version > extract_gdb_version("7.4").unwrap() {
987 // Add the directory containing the pretty printers to
988 // GDB's script auto loading safe path
989 script_str.push_str(&format!(
990 "add-auto-load-safe-path {}\n",
991 rust_pp_module_abs_path.replace(r"\", r"\\")
997 "NOTE: compiletest does not know which version of \
1003 // The following line actually doesn't have to do anything with
1004 // pretty printing, it just tells GDB to print values on one line:
1005 script_str.push_str("set print pretty off\n");
1007 // Add the pretty printer directory to GDB's source-file search path
1009 .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\")));
1011 // Load the target executable
1013 .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\")));
1015 // Force GDB to print values in the Rust format.
1016 if self.config.gdb_native_rust {
1017 script_str.push_str("set language rust\n");
1020 // Add line breakpoints
1021 for line in &breakpoint_lines {
1022 script_str.push_str(&format!(
1024 self.testpaths.file.file_name().unwrap().to_string_lossy(),
1029 script_str.push_str(&cmds);
1030 script_str.push_str("\nquit\n");
1032 debug!("script_str = {}", script_str);
1033 self.dump_output_file(&script_str, "debugger.script");
1035 let mut debugger_script = OsString::from("-command=");
1036 debugger_script.push(self.make_out_name("debugger.script"));
1038 let debugger_opts: &[&OsStr] =
1039 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
1041 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
1042 gdb.args(debugger_opts).env("PYTHONPATH", rust_pp_module_abs_path);
1044 debugger_run_result =
1045 self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None);
1048 if !debugger_run_result.status.success() {
1049 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
1052 self.check_debugger_output(&debugger_run_result, &check_lines);
1055 fn run_debuginfo_lldb_test(&self) {
1056 assert!(self.revision.is_none(), "revisions not relevant here");
1058 if self.config.lldb_python_dir.is_none() {
1059 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1062 let config = Config {
1063 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1064 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1065 ..self.config.clone()
1068 let test_cx = TestCx { config: &config, ..*self };
1070 test_cx.run_debuginfo_lldb_test_no_opt();
1073 fn run_debuginfo_lldb_test_no_opt(&self) {
1074 // compile test file (it should have 'compile-flags:-g' in the header)
1075 let should_run = self.run_if_enabled();
1076 let compile_result = self.compile_test(should_run, EmitMetadata::No);
1077 if !compile_result.status.success() {
1078 self.fatal_proc_rec("compilation failed!", &compile_result);
1080 if let WillExecute::Disabled = should_run {
1084 let exe_file = self.make_exe_name();
1086 match self.config.lldb_version {
1087 Some(ref version) => {
1088 println!("NOTE: compiletest thinks it is using LLDB version {}", version);
1092 "NOTE: compiletest does not know which version of \
1098 let prefixes = if self.config.lldb_native_rust {
1099 static PREFIXES: &[&str] = &["lldb", "lldbr"];
1100 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1103 static PREFIXES: &[&str] = &["lldb", "lldbg"];
1104 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1108 // Parse debugger commands etc from test files
1109 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
1110 self.parse_debugger_commands(prefixes);
1112 // Write debugger script:
1113 // We don't want to hang when calling `quit` while the process is still running
1114 let mut script_str = String::from("settings set auto-confirm true\n");
1116 // Make LLDB emit its version, so we have it documented in the test output
1117 script_str.push_str("version\n");
1119 // Switch LLDB into "Rust mode"
1121 self.config.find_rust_src_root().expect("Could not find Rust source root");
1122 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_lookup.py");
1123 let rust_pp_module_abs_path =
1124 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
1126 let rust_type_regexes = vec![
1127 "^(alloc::([a-z_]+::)+)String$",
1130 "^(std::ffi::([a-z_]+::)+)OsString$",
1131 "^(alloc::([a-z_]+::)+)Vec<.+>$",
1132 "^(alloc::([a-z_]+::)+)VecDeque<.+>$",
1133 "^(alloc::([a-z_]+::)+)BTreeSet<.+>$",
1134 "^(alloc::([a-z_]+::)+)BTreeMap<.+>$",
1135 "^(std::collections::([a-z_]+::)+)HashMap<.+>$",
1136 "^(std::collections::([a-z_]+::)+)HashSet<.+>$",
1137 "^(alloc::([a-z_]+::)+)Rc<.+>$",
1138 "^(alloc::([a-z_]+::)+)Arc<.+>$",
1139 "^(core::([a-z_]+::)+)Cell<.+>$",
1140 "^(core::([a-z_]+::)+)Ref<.+>$",
1141 "^(core::([a-z_]+::)+)RefMut<.+>$",
1142 "^(core::([a-z_]+::)+)RefCell<.+>$",
1146 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1147 script_str.push_str("type synthetic add -l lldb_lookup.synthetic_lookup -x '.*' ");
1148 script_str.push_str("--category Rust\n");
1149 for type_regex in rust_type_regexes {
1150 script_str.push_str("type summary add -F lldb_lookup.summary_lookup -e -x -h ");
1151 script_str.push_str(&format!("'{}' ", type_regex));
1152 script_str.push_str("--category Rust\n");
1154 script_str.push_str("type category enable Rust\n");
1156 // Set breakpoints on every line that contains the string "#break"
1157 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1158 for line in &breakpoint_lines {
1159 script_str.push_str(&format!(
1160 "breakpoint set --file '{}' --line {}\n",
1161 source_file_name, line
1165 // Append the other commands
1166 for line in &commands {
1167 script_str.push_str(line);
1168 script_str.push_str("\n");
1171 // Finally, quit the debugger
1172 script_str.push_str("\nquit\n");
1174 // Write the script into a file
1175 debug!("script_str = {}", script_str);
1176 self.dump_output_file(&script_str, "debugger.script");
1177 let debugger_script = self.make_out_name("debugger.script");
1179 // Let LLDB execute the script via lldb_batchmode.py
1180 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1182 if !debugger_run_result.status.success() {
1183 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1186 self.check_debugger_output(&debugger_run_result, &check_lines);
1191 test_executable: &Path,
1192 debugger_script: &Path,
1193 rust_src_root: &Path,
1195 // Prepare the lldb_batchmode which executes the debugger script
1196 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1198 Command::new(&self.config.lldb_python)
1199 .arg(&lldb_script_path)
1200 .arg(test_executable)
1201 .arg(debugger_script)
1202 .env("PYTHONUNBUFFERED", "1") // Help debugging #78665
1203 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1207 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1208 let (status, out, err) = match cmd.output() {
1209 Ok(Output { status, stdout, stderr }) => {
1210 (status, String::from_utf8(stdout).unwrap(), String::from_utf8(stderr).unwrap())
1212 Err(e) => self.fatal(&format!(
1213 "Failed to setup Python process for \
1219 self.dump_output(&out, &err);
1220 ProcRes { status, stdout: out, stderr: err, cmdline: format!("{:?}", cmd) }
1223 fn parse_debugger_commands(&self, debugger_prefixes: &[&str]) -> DebuggerCommands {
1224 let directives = debugger_prefixes
1226 .map(|prefix| (format!("{}-command", prefix), format!("{}-check", prefix)))
1227 .collect::<Vec<_>>();
1229 let mut breakpoint_lines = vec![];
1230 let mut commands = vec![];
1231 let mut check_lines = vec![];
1232 let mut counter = 1;
1233 let reader = BufReader::new(File::open(&self.testpaths.file).unwrap());
1234 for line in reader.lines() {
1238 if line.starts_with("//") { line[2..].trim_start() } else { line.as_str() };
1240 if line.contains("#break") {
1241 breakpoint_lines.push(counter);
1244 for &(ref command_directive, ref check_directive) in &directives {
1246 .parse_name_value_directive(&line, command_directive)
1247 .map(|cmd| commands.push(cmd));
1250 .parse_name_value_directive(&line, check_directive)
1251 .map(|cmd| check_lines.push(cmd));
1254 Err(e) => self.fatal(&format!("Error while parsing debugger commands: {}", e)),
1259 DebuggerCommands { commands, check_lines, breakpoint_lines }
1262 fn cleanup_debug_info_options(&self, options: &Option<String>) -> Option<String> {
1263 if options.is_none() {
1267 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1268 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1269 let new_options = self
1270 .split_maybe_args(options)
1272 .filter(|x| !options_to_remove.contains(x))
1273 .collect::<Vec<String>>();
1275 Some(new_options.join(" "))
1278 fn maybe_add_external_args(&self, cmd: &mut Command, args: Vec<String>) {
1279 // Filter out the arguments that should not be added by runtest here.
1281 // Notable use-cases are: do not add our optimisation flag if
1282 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1283 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/ "opt-level="];
1284 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/ "debuginfo="];
1286 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1287 // its arguments. They need to be collected separately. For now I cannot be bothered to
1288 // implement this the "right" way.
1290 self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f)));
1291 let have_debug_flag = self
1295 .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)));
1298 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1301 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1308 fn check_debugger_output(&self, debugger_run_result: &ProcRes, check_lines: &[String]) {
1309 let num_check_lines = check_lines.len();
1311 let mut check_line_index = 0;
1312 for line in debugger_run_result.stdout.lines() {
1313 if check_line_index >= num_check_lines {
1317 if check_single_line(line, &(check_lines[check_line_index])[..]) {
1318 check_line_index += 1;
1321 if check_line_index != num_check_lines && num_check_lines > 0 {
1322 self.fatal_proc_rec(
1323 &format!("line not found in debugger output: {}", check_lines[check_line_index]),
1324 debugger_run_result,
1328 fn check_single_line(line: &str, check_line: &str) -> bool {
1329 // Allow check lines to leave parts unspecified (e.g., uninitialized
1330 // bits in the wrong case of an enum) with the notation "[...]".
1331 let line = line.trim();
1332 let check_line = check_line.trim();
1333 let can_start_anywhere = check_line.starts_with("[...]");
1334 let can_end_anywhere = check_line.ends_with("[...]");
1336 let check_fragments: Vec<&str> =
1337 check_line.split("[...]").filter(|frag| !frag.is_empty()).collect();
1338 if check_fragments.is_empty() {
1342 let (mut rest, first_fragment) = if can_start_anywhere {
1343 match line.find(check_fragments[0]) {
1344 Some(pos) => (&line[pos + check_fragments[0].len()..], 1),
1345 None => return false,
1351 for current_fragment in &check_fragments[first_fragment..] {
1352 match rest.find(current_fragment) {
1354 rest = &rest[pos + current_fragment.len()..];
1356 None => return false,
1360 if !can_end_anywhere && !rest.is_empty() {
1368 fn check_error_patterns(
1370 output_to_check: &str,
1372 pm: Option<PassMode>,
1374 debug!("check_error_patterns");
1375 if self.props.error_patterns.is_empty() {
1380 self.fatal(&format!(
1381 "no error pattern specified in {:?}",
1382 self.testpaths.file.display()
1387 let mut missing_patterns: Vec<String> = Vec::new();
1389 for pattern in &self.props.error_patterns {
1390 if output_to_check.contains(pattern.trim()) {
1391 debug!("found error pattern {}", pattern);
1393 missing_patterns.push(pattern.to_string());
1397 if missing_patterns.is_empty() {
1401 if missing_patterns.len() == 1 {
1402 self.fatal_proc_rec(
1403 &format!("error pattern '{}' not found!", missing_patterns[0]),
1407 for pattern in missing_patterns {
1408 self.error(&format!("error pattern '{}' not found!", pattern));
1410 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1414 fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) {
1415 match proc_res.status.code() {
1416 Some(101) if !should_ice => {
1417 self.fatal_proc_rec("compiler encountered internal error", proc_res)
1419 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1424 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1425 for pat in &self.props.forbid_output {
1426 if output_to_check.contains(pat) {
1427 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1432 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1434 "check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1435 expected_errors, proc_res.status
1437 if proc_res.status.success()
1438 && expected_errors.iter().any(|x| x.kind == Some(ErrorKind::Error))
1440 self.fatal_proc_rec("process did not return an error status", proc_res);
1443 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1444 // from the compiler
1445 let os_file_name = self.testpaths.file.display().to_string();
1447 // on windows, translate all '\' path separators to '/'
1448 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1450 // If the testcase being checked contains at least one expected "help"
1451 // message, then we'll ensure that all "help" messages are expected.
1452 // Otherwise, all "help" messages reported by the compiler will be ignored.
1453 // This logic also applies to "note" messages.
1454 let expect_help = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Help));
1455 let expect_note = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Note));
1457 // Parse the JSON output from the compiler and extract out the messages.
1458 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1459 let mut unexpected = Vec::new();
1460 let mut found = vec![false; expected_errors.len()];
1461 for actual_error in &actual_errors {
1463 expected_errors.iter().enumerate().position(|(index, expected_error)| {
1465 && actual_error.line_num == expected_error.line_num
1466 && (expected_error.kind.is_none()
1467 || actual_error.kind == expected_error.kind)
1468 && actual_error.msg.contains(&expected_error.msg)
1473 // found a match, everybody is happy
1474 assert!(!found[index]);
1475 found[index] = true;
1479 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1480 self.error(&format!(
1481 "{}:{}: unexpected {}: '{}'",
1483 actual_error.line_num,
1487 .map_or(String::from("message"), |k| k.to_string()),
1490 unexpected.push(actual_error);
1496 let mut not_found = Vec::new();
1497 // anything not yet found is a problem
1498 for (index, expected_error) in expected_errors.iter().enumerate() {
1500 self.error(&format!(
1501 "{}:{}: expected {} not found: {}",
1503 expected_error.line_num,
1504 expected_error.kind.as_ref().map_or("message".into(), |k| k.to_string()),
1507 not_found.push(expected_error);
1511 if !unexpected.is_empty() || !not_found.is_empty() {
1512 self.error(&format!(
1513 "{} unexpected errors found, {} expected errors not found",
1517 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1518 if !unexpected.is_empty() {
1519 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1521 if !not_found.is_empty() {
1522 println!("not found errors (from test file): {:#?}\n", not_found);
1528 /// Returns `true` if we should report an error about `actual_error`,
1529 /// which did not match any of the expected error. We always require
1530 /// errors/warnings to be explicitly listed, but only require
1531 /// helps/notes if there are explicit helps/notes given.
1532 fn is_unexpected_compiler_message(
1534 actual_error: &Error,
1538 match actual_error.kind {
1539 Some(ErrorKind::Help) => expect_help,
1540 Some(ErrorKind::Note) => expect_note,
1541 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1542 Some(ErrorKind::Suggestion) | None => false,
1546 fn should_emit_metadata(&self, pm: Option<PassMode>) -> EmitMetadata {
1547 match (pm, self.props.fail_mode, self.config.mode) {
1548 (Some(PassMode::Check), ..) | (_, Some(FailMode::Check), Ui) => EmitMetadata::Yes,
1549 _ => EmitMetadata::No,
1553 fn compile_test(&self, will_execute: WillExecute, emit_metadata: EmitMetadata) -> ProcRes {
1554 self.compile_test_general(will_execute, emit_metadata, self.props.local_pass_mode())
1557 fn compile_test_general(
1559 will_execute: WillExecute,
1560 emit_metadata: EmitMetadata,
1561 local_pm: Option<PassMode>,
1563 // Only use `make_exe_name` when the test ends up being executed.
1564 let output_file = match will_execute {
1565 WillExecute::Yes => TargetLocation::ThisFile(self.make_exe_name()),
1566 WillExecute::No | WillExecute::Disabled => {
1567 TargetLocation::ThisDirectory(self.output_base_dir())
1571 let allow_unused = match self.config.mode {
1573 // UI tests tend to have tons of unused code as
1574 // it's just testing various pieces of the compile, but we don't
1575 // want to actually assert warnings about all this code. Instead
1576 // let's just ignore unused code warnings by defaults and tests
1577 // can turn it back on if needed.
1578 if !self.is_rustdoc()
1579 // Note that we use the local pass mode here as we don't want
1580 // to set unused to allow if we've overridden the pass mode
1581 // via command line flags.
1582 && local_pm != Some(PassMode::Run)
1589 _ => AllowUnused::No,
1593 self.make_compile_args(&self.testpaths.file, output_file, emit_metadata, allow_unused);
1595 rustc.arg("-L").arg(&self.aux_output_dir_name());
1597 self.compose_and_run_compiler(rustc, None)
1600 fn document(&self, out_dir: &Path) -> ProcRes {
1601 if self.props.build_aux_docs {
1602 for rel_ab in &self.props.aux_builds {
1603 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1605 self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1606 let aux_cx = TestCx {
1607 config: self.config,
1609 testpaths: &aux_testpaths,
1610 revision: self.revision,
1612 // Create the directory for the stdout/stderr files.
1613 create_dir_all(aux_cx.output_base_dir()).unwrap();
1614 let auxres = aux_cx.document(out_dir);
1615 if !auxres.status.success() {
1621 let aux_dir = self.aux_output_dir_name();
1623 let rustdoc_path = self.config.rustdoc_path.as_ref().expect("--rustdoc-path not passed");
1624 let mut rustdoc = Command::new(rustdoc_path);
1628 .arg(self.config.run_lib_path.to_str().unwrap())
1633 .arg(&self.testpaths.file)
1634 .args(&self.props.compile_flags);
1636 if self.config.mode == RustdocJson {
1637 rustdoc.arg("--output-format").arg("json").arg("-Zunstable-options");
1640 if let Some(ref linker) = self.config.linker {
1641 rustdoc.arg(format!("-Clinker={}", linker));
1644 self.compose_and_run_compiler(rustdoc, None)
1647 fn exec_compiled_test(&self) -> ProcRes {
1648 let env = &self.props.exec_env;
1650 let proc_res = match &*self.config.target {
1651 // This is pretty similar to below, we're transforming:
1653 // program arg1 arg2
1657 // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2
1659 // The test-client program will upload `program` to the emulator
1660 // along with all other support libraries listed (in this case
1661 // `support-lib.so` and `support-lib2.so`. It will then execute
1662 // the program on the emulator with the arguments specified
1663 // (in the environment we give the process) and then report back
1665 _ if self.config.remote_test_client.is_some() => {
1666 let aux_dir = self.aux_output_dir_name();
1667 let ProcArgs { prog, args } = self.make_run_args();
1668 let mut support_libs = Vec::new();
1669 if let Ok(entries) = aux_dir.read_dir() {
1670 for entry in entries {
1671 let entry = entry.unwrap();
1672 if !entry.path().is_file() {
1675 support_libs.push(entry.path());
1678 let mut test_client =
1679 Command::new(self.config.remote_test_client.as_ref().unwrap());
1681 .args(&["run", &support_libs.len().to_string(), &prog])
1685 self.compose_and_run(
1687 self.config.run_lib_path.to_str().unwrap(),
1688 Some(aux_dir.to_str().unwrap()),
1692 _ if self.config.target.contains("vxworks") => {
1693 let aux_dir = self.aux_output_dir_name();
1694 let ProcArgs { prog, args } = self.make_run_args();
1695 let mut wr_run = Command::new("wr-run");
1696 wr_run.args(&[&prog]).args(args).envs(env.clone());
1697 self.compose_and_run(
1699 self.config.run_lib_path.to_str().unwrap(),
1700 Some(aux_dir.to_str().unwrap()),
1705 let aux_dir = self.aux_output_dir_name();
1706 let ProcArgs { prog, args } = self.make_run_args();
1707 let mut program = Command::new(&prog);
1708 program.args(args).current_dir(&self.output_base_dir()).envs(env.clone());
1709 self.compose_and_run(
1711 self.config.run_lib_path.to_str().unwrap(),
1712 Some(aux_dir.to_str().unwrap()),
1718 if proc_res.status.success() {
1719 // delete the executable after running it to save space.
1720 // it is ok if the deletion failed.
1721 let _ = fs::remove_file(self.make_exe_name());
1727 /// For each `aux-build: foo/bar` annotation, we check to find the
1728 /// file in a `auxiliary` directory relative to the test itself.
1729 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1734 .expect("test file path has no parent")
1737 if !test_ab.exists() {
1738 self.fatal(&format!("aux-build `{}` source not found", test_ab.display()))
1746 .join(self.output_testname_unique())
1750 .expect("aux-build path has no parent")
1755 fn is_vxworks_pure_static(&self) -> bool {
1756 if self.config.target.contains("vxworks") {
1757 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1766 fn is_vxworks_pure_dynamic(&self) -> bool {
1767 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1770 fn build_all_auxiliary(&self, rustc: &mut Command) -> PathBuf {
1771 let aux_dir = self.aux_output_dir_name();
1773 if !self.props.aux_builds.is_empty() {
1774 let _ = fs::remove_dir_all(&aux_dir);
1775 create_dir_all(&aux_dir).unwrap();
1778 for rel_ab in &self.props.aux_builds {
1779 self.build_auxiliary(rel_ab, &aux_dir);
1782 for (aux_name, aux_path) in &self.props.aux_crates {
1783 let is_dylib = self.build_auxiliary(&aux_path, &aux_dir);
1785 get_lib_name(&aux_path.trim_end_matches(".rs").replace('-', "_"), is_dylib);
1786 rustc.arg("--extern").arg(format!("{}={}/{}", aux_name, aux_dir.display(), lib_name));
1792 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1793 let aux_dir = self.build_all_auxiliary(&mut rustc);
1794 self.props.unset_rustc_env.clone().iter().fold(&mut rustc, |rustc, v| rustc.env_remove(v));
1795 rustc.envs(self.props.rustc_env.clone());
1796 self.compose_and_run(
1798 self.config.compile_lib_path.to_str().unwrap(),
1799 Some(aux_dir.to_str().unwrap()),
1804 /// Builds an aux dependency.
1806 /// Returns whether or not it is a dylib.
1807 fn build_auxiliary(&self, source_path: &str, aux_dir: &Path) -> bool {
1808 let aux_testpaths = self.compute_aux_test_paths(source_path);
1809 let aux_props = self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1810 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1811 let aux_cx = TestCx {
1812 config: self.config,
1814 testpaths: &aux_testpaths,
1815 revision: self.revision,
1817 // Create the directory for the stdout/stderr files.
1818 create_dir_all(aux_cx.output_base_dir()).unwrap();
1819 let input_file = &aux_testpaths.file;
1821 aux_cx.make_compile_args(input_file, aux_output, EmitMetadata::No, AllowUnused::No);
1823 for key in &aux_props.unset_rustc_env {
1824 aux_rustc.env_remove(key);
1826 aux_rustc.envs(aux_props.rustc_env.clone());
1828 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1830 } else if self.config.target.contains("emscripten")
1831 || (self.config.target.contains("musl")
1832 && !aux_props.force_host
1833 && !self.config.host.contains("musl"))
1834 || self.config.target.contains("wasm32")
1835 || self.config.target.contains("nvptx")
1836 || self.is_vxworks_pure_static()
1837 || self.config.target.contains("sgx")
1838 || self.config.target.contains("bpf")
1840 // We primarily compile all auxiliary libraries as dynamic libraries
1841 // to avoid code size bloat and large binaries as much as possible
1842 // for the test suite (otherwise including libstd statically in all
1843 // executables takes up quite a bit of space).
1845 // For targets like MUSL or Emscripten, however, there is no support for
1846 // dynamic libraries so we just go back to building a normal library. Note,
1847 // however, that for MUSL if the library is built with `force_host` then
1848 // it's ok to be a dylib as the host should always support dylibs.
1849 (false, Some("lib"))
1851 (true, Some("dylib"))
1854 if let Some(crate_type) = crate_type {
1855 aux_rustc.args(&["--crate-type", crate_type]);
1858 aux_rustc.arg("-L").arg(&aux_dir);
1860 let auxres = aux_cx.compose_and_run(
1862 aux_cx.config.compile_lib_path.to_str().unwrap(),
1863 Some(aux_dir.to_str().unwrap()),
1866 if !auxres.status.success() {
1867 self.fatal_proc_rec(
1869 "auxiliary build of {:?} failed to compile: ",
1870 aux_testpaths.file.display()
1880 mut command: Command,
1882 aux_path: Option<&str>,
1883 input: Option<String>,
1886 let cmdline = self.make_cmdline(&command, lib_path);
1887 logv(self.config, format!("executing {}", cmdline));
1891 command.stdout(Stdio::piped()).stderr(Stdio::piped()).stdin(Stdio::piped());
1893 // Need to be sure to put both the lib_path and the aux path in the dylib
1894 // search path for the child.
1896 env::split_paths(&env::var_os(dylib_env_var()).unwrap_or_default()).collect::<Vec<_>>();
1897 if let Some(p) = aux_path {
1898 path.insert(0, PathBuf::from(p))
1900 path.insert(0, PathBuf::from(lib_path));
1902 // Add the new dylib search path var
1903 let newpath = env::join_paths(&path).unwrap();
1904 command.env(dylib_env_var(), newpath);
1906 let mut child = disable_error_reporting(|| command.spawn())
1907 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", &command));
1908 if let Some(input) = input {
1909 child.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();
1912 let Output { status, stdout, stderr } =
1913 read2_abbreviated(child).expect("failed to read output");
1915 let result = ProcRes {
1917 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1918 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1922 self.dump_output(&result.stdout, &result.stderr);
1927 fn is_rustdoc(&self) -> bool {
1928 self.config.src_base.ends_with("rustdoc-ui")
1929 || self.config.src_base.ends_with("rustdoc-js")
1930 || self.config.src_base.ends_with("rustdoc-json")
1933 fn make_compile_args(
1936 output_file: TargetLocation,
1937 emit_metadata: EmitMetadata,
1938 allow_unused: AllowUnused,
1940 let is_aux = input_file.components().map(|c| c.as_os_str()).any(|c| c == "auxiliary");
1941 let is_rustdoc = self.is_rustdoc() && !is_aux;
1942 let mut rustc = if !is_rustdoc {
1943 Command::new(&self.config.rustc_path)
1945 Command::new(&self.config.rustdoc_path.clone().expect("no rustdoc built yet"))
1947 rustc.arg(input_file);
1949 // Use a single thread for efficiency and a deterministic error message order
1950 rustc.arg("-Zthreads=1");
1952 // Optionally prevent default --target if specified in test compile-flags.
1953 let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target"));
1957 if self.props.force_host { &*self.config.host } else { &*self.config.target };
1959 rustc.arg(&format!("--target={}", target));
1961 self.set_revision_flags(&mut rustc);
1964 if let Some(ref incremental_dir) = self.props.incremental_dir {
1965 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1966 rustc.args(&["-Z", "incremental-verify-ich"]);
1969 if self.config.mode == CodegenUnits {
1970 rustc.args(&["-Z", "human_readable_cgu_names"]);
1974 match self.config.mode {
1976 // If we are extracting and matching errors in the new
1977 // fashion, then you want JSON mode. Old-skool error
1978 // patterns still match the raw compiler output.
1979 if self.props.error_patterns.is_empty() {
1980 rustc.args(&["--error-format", "json"]);
1982 rustc.arg("-Zui-testing");
1983 rustc.arg("-Zdeduplicate-diagnostics=no");
1986 if !self.props.compile_flags.iter().any(|s| s.starts_with("--error-format")) {
1987 rustc.args(&["--error-format", "json"]);
1989 rustc.arg("-Ccodegen-units=1");
1990 rustc.arg("-Zui-testing");
1991 rustc.arg("-Zdeduplicate-diagnostics=no");
1992 rustc.arg("-Zemit-future-incompat-report");
1998 "-Zmir-opt-level=4",
2000 "-Zdump-mir-exclude-pass-number",
2003 let mir_dump_dir = self.get_mir_dump_dir();
2004 let _ = fs::remove_dir_all(&mir_dump_dir);
2005 create_dir_all(mir_dump_dir.as_path()).unwrap();
2006 let mut dir_opt = "-Zdump-mir-dir=".to_string();
2007 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
2008 debug!("dir_opt: {:?}", dir_opt);
2012 RunPassValgrind | Pretty | DebugInfo | Codegen | Rustdoc | RustdocJson | RunMake
2013 | CodegenUnits | JsDocTest | Assembly => {
2014 // do not use JSON output
2018 if let (false, EmitMetadata::Yes) = (is_rustdoc, emit_metadata) {
2019 rustc.args(&["--emit", "metadata"]);
2023 if self.config.target == "wasm32-unknown-unknown" || self.is_vxworks_pure_static() {
2024 // rustc.arg("-g"); // get any backtrace at all on errors
2025 } else if !self.props.no_prefer_dynamic {
2026 rustc.args(&["-C", "prefer-dynamic"]);
2031 TargetLocation::ThisFile(path) => {
2032 rustc.arg("-o").arg(path);
2034 TargetLocation::ThisDirectory(path) => {
2036 // `rustdoc` uses `-o` for the output directory.
2037 rustc.arg("-o").arg(path);
2039 rustc.arg("--out-dir").arg(path);
2044 match self.config.compare_mode {
2045 Some(CompareMode::Nll) => {
2046 rustc.args(&["-Zborrowck=mir"]);
2048 Some(CompareMode::Polonius) => {
2049 rustc.args(&["-Zpolonius", "-Zborrowck=mir"]);
2051 Some(CompareMode::Chalk) => {
2052 rustc.args(&["-Zchalk"]);
2054 Some(CompareMode::SplitDwarf) => {
2055 rustc.args(&["-Csplit-debuginfo=unpacked", "-Zunstable-options"]);
2057 Some(CompareMode::SplitDwarfSingle) => {
2058 rustc.args(&["-Csplit-debuginfo=packed", "-Zunstable-options"]);
2063 // Add `-A unused` before `config` flags and in-test (`props`) flags, so that they can
2065 if let AllowUnused::Yes = allow_unused {
2066 rustc.args(&["-A", "unused"]);
2069 if self.props.force_host {
2070 self.maybe_add_external_args(
2072 self.split_maybe_args(&self.config.host_rustcflags),
2075 self.maybe_add_external_args(
2077 self.split_maybe_args(&self.config.target_rustcflags),
2080 if let Some(ref linker) = self.config.linker {
2081 rustc.arg(format!("-Clinker={}", linker));
2086 // Use dynamic musl for tests because static doesn't allow creating dylibs
2087 if self.config.host.contains("musl") || self.is_vxworks_pure_dynamic() {
2088 rustc.arg("-Ctarget-feature=-crt-static");
2091 rustc.args(&self.props.compile_flags);
2096 fn make_exe_name(&self) -> PathBuf {
2097 // Using a single letter here to keep the path length down for
2098 // Windows. Some test names get very long. rustc creates `rcgu`
2099 // files with the module name appended to it which can more than
2100 // double the length.
2101 let mut f = self.output_base_dir().join("a");
2102 // FIXME: This is using the host architecture exe suffix, not target!
2103 if self.config.target.contains("emscripten") {
2104 f = f.with_extra_extension("js");
2105 } else if self.config.target.contains("wasm32") {
2106 f = f.with_extra_extension("wasm");
2107 } else if self.config.target.contains("spirv") {
2108 f = f.with_extra_extension("spv");
2109 } else if !env::consts::EXE_SUFFIX.is_empty() {
2110 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2115 fn make_run_args(&self) -> ProcArgs {
2116 // If we've got another tool to run under (valgrind),
2117 // then split apart its command
2118 let mut args = self.split_maybe_args(&self.config.runtool);
2120 // If this is emscripten, then run tests under nodejs
2121 if self.config.target.contains("emscripten") {
2122 if let Some(ref p) = self.config.nodejs {
2123 args.push(p.clone());
2125 self.fatal("no NodeJS binary found (--nodejs)");
2127 // If this is otherwise wasm, then run tests under nodejs with our
2129 } else if self.config.target.contains("wasm32") {
2130 if let Some(ref p) = self.config.nodejs {
2131 args.push(p.clone());
2133 self.fatal("no NodeJS binary found (--nodejs)");
2140 .unwrap() // chop off `ui`
2142 .unwrap() // chop off `test`
2144 .unwrap(); // chop off `src`
2145 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2148 let exe_file = self.make_exe_name();
2150 // FIXME (#9639): This needs to handle non-utf8 paths
2151 args.push(exe_file.to_str().unwrap().to_owned());
2153 // Add the arguments in the run_flags directive
2154 args.extend(self.split_maybe_args(&self.props.run_flags));
2156 let prog = args.remove(0);
2157 ProcArgs { prog, args }
2160 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2165 if s.chars().all(|c| c.is_whitespace()) { None } else { Some(s.to_owned()) }
2172 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2175 // Linux and mac don't require adjusting the library search path
2177 format!("{:?}", command)
2179 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2180 // for diagnostic purposes
2181 fn lib_path_cmd_prefix(path: &str) -> String {
2182 format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
2185 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2189 fn dump_output(&self, out: &str, err: &str) {
2190 let revision = if let Some(r) = self.revision { format!("{}.", r) } else { String::new() };
2192 self.dump_output_file(out, &format!("{}out", revision));
2193 self.dump_output_file(err, &format!("{}err", revision));
2194 self.maybe_dump_to_stdout(out, err);
2197 fn dump_output_file(&self, out: &str, extension: &str) {
2198 let outfile = self.make_out_name(extension);
2199 fs::write(&outfile, out).unwrap();
2202 /// Creates a filename for output with the given extension.
2203 /// E.g., `/.../testname.revision.mode/testname.extension`.
2204 fn make_out_name(&self, extension: &str) -> PathBuf {
2205 self.output_base_name().with_extension(extension)
2208 /// Gets the directory where auxiliary files are written.
2209 /// E.g., `/.../testname.revision.mode/auxiliary/`.
2210 fn aux_output_dir_name(&self) -> PathBuf {
2211 self.output_base_dir()
2213 .with_extra_extension(self.config.mode.disambiguator())
2216 /// Generates a unique name for the test, such as `testname.revision.mode`.
2217 fn output_testname_unique(&self) -> PathBuf {
2218 output_testname_unique(self.config, self.testpaths, self.safe_revision())
2221 /// The revision, ignored for incremental compilation since it wants all revisions in
2222 /// the same directory.
2223 fn safe_revision(&self) -> Option<&str> {
2224 if self.config.mode == Incremental { None } else { self.revision }
2227 /// Gets the absolute path to the directory where all output for the given
2228 /// test/revision should reside.
2229 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2230 fn output_base_dir(&self) -> PathBuf {
2231 output_base_dir(self.config, self.testpaths, self.safe_revision())
2234 /// Gets the absolute path to the base filename used as output for the given
2236 /// E.g., `/.../relative/testname.revision.mode/testname`.
2237 fn output_base_name(&self) -> PathBuf {
2238 output_base_name(self.config, self.testpaths, self.safe_revision())
2241 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2242 if self.config.verbose {
2243 println!("------{}------------------------------", "stdout");
2244 println!("{}", out);
2245 println!("------{}------------------------------", "stderr");
2246 println!("{}", err);
2247 println!("------------------------------------------");
2251 fn error(&self, err: &str) {
2252 match self.revision {
2253 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2254 None => println!("\nerror: {}", err),
2258 fn fatal(&self, err: &str) -> ! {
2260 error!("fatal error, panic: {:?}", err);
2261 panic!("fatal error");
2264 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2266 proc_res.fatal(None, || ());
2269 fn fatal_proc_rec_with_ctx(
2273 on_failure: impl FnOnce(Self),
2276 proc_res.fatal(None, || on_failure(*self));
2279 // codegen tests (using FileCheck)
2281 fn compile_test_and_save_ir(&self) -> ProcRes {
2282 let aux_dir = self.aux_output_dir_name();
2284 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2285 let input_file = &self.testpaths.file;
2287 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2288 rustc.arg("-L").arg(aux_dir).arg("--emit=llvm-ir");
2290 self.compose_and_run_compiler(rustc, None)
2293 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2294 // This works with both `--emit asm` (as default output name for the assembly)
2295 // and `ptx-linker` because the latter can write output at requested location.
2296 let output_path = self.output_base_name().with_extension("s");
2298 let output_file = TargetLocation::ThisFile(output_path.clone());
2299 let input_file = &self.testpaths.file;
2301 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2303 rustc.arg("-L").arg(self.aux_output_dir_name());
2305 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2306 Some("emit-asm") => {
2307 rustc.arg("--emit=asm");
2310 Some("ptx-linker") => {
2311 // No extra flags needed.
2314 Some(_) => self.fatal("unknown 'assembly-output' header"),
2315 None => self.fatal("missing 'assembly-output' header"),
2318 (self.compose_and_run_compiler(rustc, None), output_path)
2321 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2322 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2323 filecheck.arg("--input-file").arg(output).arg(&self.testpaths.file);
2324 // It would be more appropriate to make most of the arguments configurable through
2325 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2328 // For now, though…
2329 if let Some(rev) = self.revision {
2330 let prefixes = format!("CHECK,{}", rev);
2331 if self.config.llvm_version.unwrap_or(0) >= 130000 {
2332 filecheck.args(&["--allow-unused-prefixes", "--check-prefixes", &prefixes]);
2334 filecheck.args(&["--check-prefixes", &prefixes]);
2337 self.compose_and_run(filecheck, "", None, None)
2340 fn run_codegen_test(&self) {
2341 if self.config.llvm_filecheck.is_none() {
2342 self.fatal("missing --llvm-filecheck");
2345 let proc_res = self.compile_test_and_save_ir();
2346 if !proc_res.status.success() {
2347 self.fatal_proc_rec("compilation failed!", &proc_res);
2350 let output_path = self.output_base_name().with_extension("ll");
2351 let proc_res = self.verify_with_filecheck(&output_path);
2352 if !proc_res.status.success() {
2353 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2357 fn run_assembly_test(&self) {
2358 if self.config.llvm_filecheck.is_none() {
2359 self.fatal("missing --llvm-filecheck");
2362 let (proc_res, output_path) = self.compile_test_and_save_assembly();
2363 if !proc_res.status.success() {
2364 self.fatal_proc_rec("compilation failed!", &proc_res);
2367 let proc_res = self.verify_with_filecheck(&output_path);
2368 if !proc_res.status.success() {
2369 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2373 fn charset() -> &'static str {
2374 // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset
2375 if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" }
2378 fn run_rustdoc_test(&self) {
2379 assert!(self.revision.is_none(), "revisions not relevant here");
2381 let out_dir = self.output_base_dir();
2382 let _ = fs::remove_dir_all(&out_dir);
2383 create_dir_all(&out_dir).unwrap();
2385 let proc_res = self.document(&out_dir);
2386 if !proc_res.status.success() {
2387 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2390 if self.props.check_test_line_numbers_match {
2391 self.check_rustdoc_test_option(proc_res);
2393 let root = self.config.find_rust_src_root().unwrap();
2394 let res = self.cmd2procres(
2395 Command::new(&self.config.docck_python)
2396 .arg(root.join("src/etc/htmldocck.py"))
2398 .arg(&self.testpaths.file),
2400 if !res.status.success() {
2401 self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| {
2402 this.compare_to_default_rustdoc(&out_dir)
2408 fn compare_to_default_rustdoc(&mut self, out_dir: &Path) {
2409 if !self.config.has_tidy {
2412 println!("info: generating a diff against nightly rustdoc");
2415 self.safe_revision().map_or("nightly".into(), |path| path.to_owned() + "-nightly");
2416 let compare_dir = output_base_dir(self.config, self.testpaths, Some(&suffix));
2417 // Don't give an error if the directory didn't already exist
2418 let _ = fs::remove_dir_all(&compare_dir);
2419 create_dir_all(&compare_dir).unwrap();
2421 // We need to create a new struct for the lifetimes on `config` to work.
2422 let new_rustdoc = TestCx {
2424 // FIXME: use beta or a user-specified rustdoc instead of
2425 // hardcoding the default toolchain
2426 rustdoc_path: Some("rustdoc".into()),
2427 // Needed for building auxiliary docs below
2428 rustc_path: "rustc".into(),
2429 ..self.config.clone()
2434 let output_file = TargetLocation::ThisDirectory(new_rustdoc.aux_output_dir_name());
2435 let mut rustc = new_rustdoc.make_compile_args(
2436 &new_rustdoc.testpaths.file,
2441 rustc.arg("-L").arg(&new_rustdoc.aux_output_dir_name());
2442 new_rustdoc.build_all_auxiliary(&mut rustc);
2444 let proc_res = new_rustdoc.document(&compare_dir);
2445 if !proc_res.status.success() {
2446 eprintln!("failed to run nightly rustdoc");
2453 "--indent-spaces", "2",
2455 "--show-warnings", "no",
2460 let tidy_dir = |dir| {
2461 for entry in walkdir::WalkDir::new(dir) {
2462 let entry = entry.expect("failed to read file");
2463 if entry.file_type().is_file()
2464 && entry.path().extension().and_then(|p| p.to_str()) == Some("html".into())
2467 Command::new("tidy").args(&tidy_args).arg(entry.path()).status().unwrap();
2468 // `tidy` returns 1 if it modified the file.
2469 assert!(status.success() || status.code() == Some(1));
2474 tidy_dir(&compare_dir);
2477 let output = Command::new("git").args(&["config", "--get", "core.pager"]).output().ok();
2478 output.and_then(|out| {
2479 if out.status.success() {
2480 Some(String::from_utf8(out.stdout).expect("invalid UTF8 in git pager"))
2487 let diff_filename = format!("build/tmp/rustdoc-compare-{}.diff", std::process::id());
2490 let mut diff_output = File::create(&diff_filename).unwrap();
2491 for entry in walkdir::WalkDir::new(out_dir) {
2492 let entry = entry.expect("failed to read file");
2493 let extension = entry.path().extension().and_then(|p| p.to_str());
2494 if entry.file_type().is_file()
2495 && (extension == Some("html".into()) || extension == Some("js".into()))
2498 compare_dir.join(entry.path().strip_prefix(&out_dir).unwrap());
2500 if let Ok(s) = std::fs::read(&expected_path) { s } else { continue };
2501 let actual_path = entry.path();
2502 let actual = std::fs::read(&actual_path).unwrap();
2504 .write_all(&unified_diff::diff(
2506 &expected_path.to_string_lossy(),
2508 &actual_path.to_string_lossy(),
2516 match self.config.color {
2517 ColorConfig::AlwaysColor => colored::control::set_override(true),
2518 ColorConfig::NeverColor => colored::control::set_override(false),
2522 if let Some(pager) = pager {
2523 let pager = pager.trim();
2524 if self.config.verbose {
2525 eprintln!("using pager {}", pager);
2527 let output = Command::new(pager)
2528 // disable paging; we want this to be non-interactive
2530 .stdin(File::open(&diff_filename).unwrap())
2531 // Capture output and print it explicitly so it will in turn be
2532 // captured by libtest.
2535 assert!(output.status.success());
2536 println!("{}", String::from_utf8_lossy(&output.stdout));
2537 eprintln!("{}", String::from_utf8_lossy(&output.stderr));
2539 use colored::Colorize;
2540 eprintln!("warning: no pager configured, falling back to unified diff");
2542 "help: try configuring a git pager (e.g. `delta`) with `git config --global core.pager delta`"
2544 let mut out = io::stdout();
2545 let mut diff = BufReader::new(File::open(&diff_filename).unwrap());
2546 let mut line = Vec::new();
2549 match diff.read_until(b'\n', &mut line) {
2552 Err(e) => eprintln!("ERROR: {:?}", e),
2554 match String::from_utf8(line.clone()) {
2556 if line.starts_with("+") {
2557 write!(&mut out, "{}", line.green()).unwrap();
2558 } else if line.starts_with("-") {
2559 write!(&mut out, "{}", line.red()).unwrap();
2560 } else if line.starts_with("@") {
2561 write!(&mut out, "{}", line.blue()).unwrap();
2563 out.write_all(line.as_bytes()).unwrap();
2567 write!(&mut out, "{}", String::from_utf8_lossy(&line).reversed()).unwrap();
2574 fn run_rustdoc_json_test(&self) {
2575 //FIXME: Add bless option.
2577 assert!(self.revision.is_none(), "revisions not relevant here");
2579 let out_dir = self.output_base_dir();
2580 let _ = fs::remove_dir_all(&out_dir);
2581 create_dir_all(&out_dir).unwrap();
2583 let proc_res = self.document(&out_dir);
2584 if !proc_res.status.success() {
2585 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2588 let root = self.config.find_rust_src_root().unwrap();
2589 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2590 json_out.set_extension("json");
2591 let res = self.cmd2procres(
2592 Command::new(self.config.jsondocck_path.as_ref().unwrap())
2594 .arg(root.join(&out_dir))
2596 .arg(&self.testpaths.file),
2599 if !res.status.success() {
2600 self.fatal_proc_rec("jsondocck failed!", &res)
2603 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2604 json_out.set_extension("json");
2605 let res = self.cmd2procres(
2606 Command::new(&self.config.docck_python)
2607 .arg(root.join("src/etc/check_missing_items.py"))
2611 if !res.status.success() {
2612 self.fatal_proc_rec("check_missing_items failed!", &res);
2616 fn get_lines<P: AsRef<Path>>(
2619 mut other_files: Option<&mut Vec<String>>,
2621 let content = fs::read_to_string(&path).unwrap();
2622 let mut ignore = false;
2626 .filter_map(|(line_nb, line)| {
2627 if (line.trim_start().starts_with("pub mod ")
2628 || line.trim_start().starts_with("mod "))
2629 && line.ends_with(';')
2631 if let Some(ref mut other_files) = other_files {
2632 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2636 let sline = line.split("///").last().unwrap_or("");
2637 let line = sline.trim_start();
2638 if line.starts_with("```") {
2654 fn check_rustdoc_test_option(&self, res: ProcRes) {
2655 let mut other_files = Vec::new();
2656 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2657 let cwd = env::current_dir().unwrap();
2662 .unwrap_or(&self.testpaths.file)
2665 .replace('\\', "/"),
2666 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2668 for other_file in other_files {
2669 let mut path = self.testpaths.file.clone();
2670 path.set_file_name(&format!("{}.rs", other_file));
2672 path.strip_prefix(&cwd).unwrap_or(&path).to_str().unwrap().replace('\\', "/"),
2673 self.get_lines(&path, None),
2678 for _ in res.stdout.split('\n').filter(|s| s.starts_with("test ")).inspect(|s| {
2679 if let Some((left, right)) = s.split_once(" - ") {
2680 let path = left.rsplit("test ").next().unwrap();
2681 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2683 let mut iter = right.split("(line ");
2693 if let Ok(pos) = v.binary_search(&line) {
2696 self.fatal_proc_rec(
2697 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2705 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2707 for (entry, v) in &files {
2709 self.fatal_proc_rec(
2711 "Not found test at line{} \"{}\":{:?}",
2712 if v.len() > 1 { "s" } else { "" },
2723 fn run_codegen_units_test(&self) {
2724 assert!(self.revision.is_none(), "revisions not relevant here");
2726 let proc_res = self.compile_test(WillExecute::No, EmitMetadata::No);
2728 if !proc_res.status.success() {
2729 self.fatal_proc_rec("compilation failed!", &proc_res);
2732 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
2734 const PREFIX: &str = "MONO_ITEM ";
2735 const CGU_MARKER: &str = "@@";
2737 let actual: Vec<MonoItem> = proc_res
2740 .filter(|line| line.starts_with(PREFIX))
2741 .map(|line| str_to_mono_item(line, true))
2744 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2746 .map(|e| str_to_mono_item(&e.msg[..], false))
2749 let mut missing = Vec::new();
2750 let mut wrong_cgus = Vec::new();
2752 for expected_item in &expected {
2753 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2755 if let Some(actual_item) = actual_item_with_same_name {
2756 if !expected_item.codegen_units.is_empty() &&
2757 // Also check for codegen units
2758 expected_item.codegen_units != actual_item.codegen_units
2760 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2763 missing.push(expected_item.string.clone());
2767 let unexpected: Vec<_> = actual
2769 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2770 .map(|acgu| acgu.string.clone())
2773 if !missing.is_empty() {
2776 println!("\nThese items should have been contained but were not:\n");
2778 for item in &missing {
2779 println!("{}", item);
2785 if !unexpected.is_empty() {
2787 let mut sorted = unexpected.clone();
2792 println!("\nThese items were contained but should not have been:\n");
2794 for item in sorted {
2795 println!("{}", item);
2801 if !wrong_cgus.is_empty() {
2802 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2803 println!("\nThe following items were assigned to wrong codegen units:\n");
2805 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2806 println!("{}", expected_item.name);
2807 println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units));
2808 println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units));
2813 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2817 #[derive(Clone, Eq, PartialEq)]
2820 codegen_units: HashSet<String>,
2824 // [MONO_ITEM] name [@@ (cgu)+]
2825 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2826 let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() };
2828 let full_string = format!("{}{}", PREFIX, s);
2830 let parts: Vec<&str> =
2831 s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect();
2833 let name = parts[0].trim();
2835 let cgus = if parts.len() > 1 {
2836 let cgus_str = parts[1];
2841 .filter(|s| !s.is_empty())
2843 if cgu_has_crate_disambiguator {
2844 remove_crate_disambiguators_from_set_of_cgu_names(s)
2854 MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string }
2857 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2858 let mut cgus: Vec<_> = cgus.iter().collect();
2861 let mut string = String::new();
2863 string.push_str(&cgu[..]);
2864 string.push_str(" ");
2870 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2871 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2872 // remove all crate-disambiguators.
2873 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2875 static ref RE: Regex =
2876 Regex::new(r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?")
2881 RE.captures(cgu).unwrap_or_else(|| panic!("invalid cgu name encountered: {}", cgu));
2883 let mut new_name = cgu.to_owned();
2885 if let Some(d2) = captures.name("d2") {
2886 new_name.replace_range(d2.start()..d2.end(), "");
2889 let d1 = captures.name("d1").unwrap();
2890 new_name.replace_range(d1.start()..d1.end(), "");
2895 // The name of merged CGUs is constructed as the names of the original
2896 // CGUs joined with "--". This function splits such composite CGU names
2897 // and handles each component individually.
2898 fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String {
2900 .map(|cgu| remove_crate_disambiguator_from_cgu(cgu))
2901 .collect::<Vec<_>>()
2906 fn init_incremental_test(&self) {
2907 // (See `run_incremental_test` for an overview of how incremental tests work.)
2909 // Before any of the revisions have executed, create the
2910 // incremental workproduct directory. Delete any old
2911 // incremental work products that may be there from prior
2913 let incremental_dir = self.incremental_dir();
2914 if incremental_dir.exists() {
2915 // Canonicalizing the path will convert it to the //?/ format
2916 // on Windows, which enables paths longer than 260 character
2917 let canonicalized = incremental_dir.canonicalize().unwrap();
2918 fs::remove_dir_all(canonicalized).unwrap();
2920 fs::create_dir_all(&incremental_dir).unwrap();
2922 if self.config.verbose {
2923 print!("init_incremental_test: incremental_dir={}", incremental_dir.display());
2927 fn run_incremental_test(&self) {
2928 // Basic plan for a test incremental/foo/bar.rs:
2929 // - load list of revisions rpass1, cfail2, rpass3
2930 // - each should begin with `rpass`, `cfail`, or `rfail`
2931 // - if `rpass`, expect compile and execution to succeed
2932 // - if `cfail`, expect compilation to fail
2933 // - if `rfail`, expect execution to fail
2934 // - create a directory build/foo/bar.incremental
2935 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1
2936 // - because name of revision starts with "rpass", expect success
2937 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2
2938 // - because name of revision starts with "cfail", expect an error
2939 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2940 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3
2941 // - because name of revision starts with "rpass", expect success
2942 // - execute build/foo/bar.exe and save output
2944 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2945 // to #[rustc_dirty] and clean tests I guess
2947 let revision = self.revision.expect("incremental tests require a list of revisions");
2949 // Incremental workproduct directory should have already been created.
2950 let incremental_dir = self.incremental_dir();
2951 assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir");
2953 // Add an extra flag pointing at the incremental directory.
2954 let mut revision_props = self.props.clone();
2955 revision_props.incremental_dir = Some(incremental_dir);
2957 let revision_cx = TestCx {
2958 config: self.config,
2959 props: &revision_props,
2960 testpaths: self.testpaths,
2961 revision: self.revision,
2964 if self.config.verbose {
2965 print!("revision={:?} revision_props={:#?}", revision, revision_props);
2968 if revision.starts_with("rpass") {
2969 if revision_cx.props.should_ice {
2970 revision_cx.fatal("can only use should-ice in cfail tests");
2972 revision_cx.run_rpass_test();
2973 } else if revision.starts_with("rfail") {
2974 if revision_cx.props.should_ice {
2975 revision_cx.fatal("can only use should-ice in cfail tests");
2977 revision_cx.run_rfail_test();
2978 } else if revision.starts_with("cfail") {
2979 revision_cx.run_cfail_test();
2981 revision_cx.fatal("revision name must begin with rpass, rfail, or cfail");
2985 /// Directory where incremental work products are stored.
2986 fn incremental_dir(&self) -> PathBuf {
2987 self.output_base_name().with_extension("inc")
2990 fn run_rmake_test(&self) {
2991 let cwd = env::current_dir().unwrap();
2992 let src_root = self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
2993 let src_root = cwd.join(&src_root);
2995 let tmpdir = cwd.join(self.output_base_name());
2996 if tmpdir.exists() {
2997 self.aggressive_rm_rf(&tmpdir).unwrap();
2999 create_dir_all(&tmpdir).unwrap();
3001 let host = &self.config.host;
3002 let make = if host.contains("dragonfly")
3003 || host.contains("freebsd")
3004 || host.contains("netbsd")
3005 || host.contains("openbsd")
3012 let mut cmd = Command::new(make);
3013 cmd.current_dir(&self.testpaths.file)
3014 .stdout(Stdio::piped())
3015 .stderr(Stdio::piped())
3016 .env("TARGET", &self.config.target)
3017 .env("PYTHON", &self.config.docck_python)
3019 .env("RUST_BUILD_STAGE", &self.config.stage_id)
3020 .env("RUSTC", cwd.join(&self.config.rustc_path))
3021 .env("TMPDIR", &tmpdir)
3022 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
3023 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
3024 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
3025 .env("LLVM_COMPONENTS", &self.config.llvm_components)
3026 // We for sure don't want these tests to run in parallel, so make
3027 // sure they don't have access to these vars if we run via `make`
3029 .env_remove("MAKEFLAGS")
3030 .env_remove("MFLAGS")
3031 .env_remove("CARGO_MAKEFLAGS");
3033 if let Some(ref rustdoc) = self.config.rustdoc_path {
3034 cmd.env("RUSTDOC", cwd.join(rustdoc));
3037 if let Some(ref rust_demangler) = self.config.rust_demangler_path {
3038 cmd.env("RUST_DEMANGLER", cwd.join(rust_demangler));
3041 if let Some(ref node) = self.config.nodejs {
3042 cmd.env("NODE", node);
3045 if let Some(ref linker) = self.config.linker {
3046 cmd.env("RUSTC_LINKER", linker);
3049 if let Some(ref clang) = self.config.run_clang_based_tests_with {
3050 cmd.env("CLANG", clang);
3053 if let Some(ref filecheck) = self.config.llvm_filecheck {
3054 cmd.env("LLVM_FILECHECK", filecheck);
3057 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
3058 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
3061 // We don't want RUSTFLAGS set from the outside to interfere with
3062 // compiler flags set in the test cases:
3063 cmd.env_remove("RUSTFLAGS");
3065 // Use dynamic musl for tests because static doesn't allow creating dylibs
3066 if self.config.host.contains("musl") {
3067 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1");
3070 if self.config.bless {
3071 cmd.env("RUSTC_BLESS_TEST", "--bless");
3072 // Assume this option is active if the environment variable is "defined", with _any_ value.
3073 // As an example, a `Makefile` can use this option by:
3075 // ifdef RUSTC_BLESS_TEST
3076 // cp "$(TMPDIR)"/actual_something.ext expected_something.ext
3078 // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext
3082 if self.config.target.contains("msvc") && self.config.cc != "" {
3083 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
3084 // and that `lib.exe` lives next to it.
3085 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
3087 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
3088 // a path and instead passes `C:\msys64\foo`, so convert all
3089 // `/`-arguments to MSVC here to `-` arguments.
3094 .map(|s| s.replace("/", "-"))
3095 .collect::<Vec<_>>()
3098 cmd.env("IS_MSVC", "1")
3099 .env("IS_WINDOWS", "1")
3100 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
3101 .env("CC", format!("'{}' {}", self.config.cc, cflags))
3102 .env("CXX", format!("'{}'", &self.config.cxx));
3104 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
3105 .env("CXX", format!("{} {}", self.config.cxx, self.config.cflags))
3106 .env("AR", &self.config.ar);
3108 if self.config.target.contains("windows") {
3109 cmd.env("IS_WINDOWS", "1");
3113 let output = cmd.spawn().and_then(read2_abbreviated).expect("failed to spawn `make`");
3114 if !output.status.success() {
3116 status: output.status,
3117 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
3118 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
3119 cmdline: format!("{:?}", cmd),
3121 self.fatal_proc_rec("make failed", &res);
3125 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
3126 for e in path.read_dir()? {
3128 let path = entry.path();
3129 if entry.file_type()?.is_dir() {
3130 self.aggressive_rm_rf(&path)?;
3132 // Remove readonly files as well on windows (by default we can't)
3133 fs::remove_file(&path).or_else(|e| {
3134 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
3135 let mut meta = entry.metadata()?.permissions();
3136 meta.set_readonly(false);
3137 fs::set_permissions(&path, meta)?;
3138 fs::remove_file(&path)
3145 fs::remove_dir(path)
3148 fn run_js_doc_test(&self) {
3149 if let Some(nodejs) = &self.config.nodejs {
3150 let out_dir = self.output_base_dir();
3152 self.document(&out_dir);
3154 let root = self.config.find_rust_src_root().unwrap();
3156 self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem");
3157 let res = self.cmd2procres(
3158 Command::new(&nodejs)
3159 .arg(root.join("src/tools/rustdoc-js/tester.js"))
3160 .arg("--doc-folder")
3162 .arg("--crate-name")
3163 .arg(file_stem.replace("-", "_"))
3165 .arg(self.testpaths.file.with_extension("js")),
3167 if !res.status.success() {
3168 self.fatal_proc_rec("rustdoc-js test failed!", &res);
3171 self.fatal("no nodeJS");
3175 fn load_compare_outputs(
3178 output_kind: TestOutput,
3179 explicit_format: bool,
3181 let stderr_bits = format!("{}.stderr", get_pointer_width(&self.config.target));
3182 let (stderr_kind, stdout_kind) = match output_kind {
3183 TestOutput::Compile => (
3185 if self.props.stderr_per_bitwidth { &stderr_bits } else { UI_STDERR }
3189 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT),
3192 let expected_stderr = self.load_expected_output(stderr_kind);
3193 let expected_stdout = self.load_expected_output(stdout_kind);
3195 let normalized_stdout = match output_kind {
3196 TestOutput::Run if self.config.remote_test_client.is_some() => {
3197 // When tests are run using the remote-test-client, the string
3198 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
3199 // is printed to stdout by the client and then captured in the ProcRes,
3200 // so it needs to be removed when comparing the run-pass test execution output
3202 static ref REMOTE_TEST_RE: Regex = Regex::new(
3203 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-]+)+\", waiting for result\n"
3209 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3214 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3217 let stderr = if explicit_format {
3218 proc_res.stderr.clone()
3220 json::extract_rendered(&proc_res.stderr)
3223 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3226 TestOutput::Compile => {
3227 if !self.props.dont_check_compiler_stdout {
3229 self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3231 if !self.props.dont_check_compiler_stderr {
3233 self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3236 TestOutput::Run => {
3237 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3238 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3244 fn run_ui_test(&self) {
3245 if let Some(FailMode::Build) = self.props.fail_mode {
3246 // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck).
3247 let pm = Some(PassMode::Check);
3248 let proc_res = self.compile_test_general(WillExecute::No, EmitMetadata::Yes, pm);
3249 self.check_if_test_should_compile(&proc_res, pm);
3252 let pm = self.pass_mode();
3253 let should_run = self.should_run(pm);
3254 let emit_metadata = self.should_emit_metadata(pm);
3255 let proc_res = self.compile_test(should_run, emit_metadata);
3256 self.check_if_test_should_compile(&proc_res, pm);
3258 // if the user specified a format in the ui test
3259 // print the output to the stderr file, otherwise extract
3260 // the rendered error messages from json and print them
3261 let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format"));
3263 let expected_fixed = self.load_expected_output(UI_FIXED);
3265 let modes_to_prune = vec![CompareMode::Nll];
3266 self.prune_duplicate_outputs(&modes_to_prune);
3268 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3269 let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr);
3271 if self.config.compare_mode.is_some() {
3272 // don't test rustfix with nll right now
3273 } else if self.config.rustfix_coverage {
3274 // Find out which tests have `MachineApplicable` suggestions but are missing
3275 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3277 // This will return an empty `Vec` in case the executed test file has a
3278 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3279 let suggestions = get_suggestions_from_json(
3282 Filter::MachineApplicableOnly,
3284 .unwrap_or_default();
3285 if !suggestions.is_empty()
3286 && !self.props.run_rustfix
3287 && !self.props.rustfix_only_machine_applicable
3289 let mut coverage_file_path = self.config.build_base.clone();
3290 coverage_file_path.push("rustfix_missing_coverage.txt");
3291 debug!("coverage_file_path: {}", coverage_file_path.display());
3293 let mut file = OpenOptions::new()
3296 .open(coverage_file_path.as_path())
3297 .expect("could not create or open file");
3299 if writeln!(file, "{}", self.testpaths.file.display()).is_err() {
3300 panic!("couldn't write to {}", coverage_file_path.display());
3303 } else if self.props.run_rustfix {
3304 // Apply suggestions from rustc to the code itself
3305 let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap();
3306 let suggestions = get_suggestions_from_json(
3309 if self.props.rustfix_only_machine_applicable {
3310 Filter::MachineApplicableOnly
3316 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|_| {
3317 panic!("failed to apply suggestions for {:?} with rustfix", self.testpaths.file)
3320 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3321 } else if !expected_fixed.is_empty() {
3323 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3329 println!("To update references, rerun the tests and pass the `--bless` flag");
3330 let relative_path_to_file =
3331 self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap());
3333 "To only update this specific test, also pass `--test-args {}`",
3334 relative_path_to_file.display(),
3336 self.fatal_proc_rec(
3337 &format!("{} errors occurred comparing output.", errors),
3342 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3344 if let WillExecute::Yes = should_run {
3345 let proc_res = self.exec_compiled_test();
3346 let run_output_errors = if self.props.check_run_results {
3347 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3351 if run_output_errors > 0 {
3352 self.fatal_proc_rec(
3353 &format!("{} errors occurred comparing run output.", run_output_errors),
3357 if self.should_run_successfully(pm) {
3358 if !proc_res.status.success() {
3359 self.fatal_proc_rec("test run failed!", &proc_res);
3362 if proc_res.status.success() {
3363 self.fatal_proc_rec("test run succeeded!", &proc_res);
3366 if !self.props.error_patterns.is_empty() {
3367 // "// error-pattern" comments
3368 self.check_error_patterns(&proc_res.stderr, &proc_res, pm);
3373 "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3374 proc_res.status={:?} props.error_patterns={:?}",
3376 self.config.compare_mode,
3379 self.props.error_patterns
3381 if !explicit && self.config.compare_mode.is_none() {
3382 let check_patterns =
3383 should_run == WillExecute::No && !self.props.error_patterns.is_empty();
3385 let check_annotations = !check_patterns || !expected_errors.is_empty();
3388 // "// error-pattern" comments
3389 self.check_error_patterns(&proc_res.stderr, &proc_res, pm);
3392 if check_annotations {
3393 // "//~ERROR comments"
3394 self.check_expected_errors(expected_errors, &proc_res);
3398 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3399 // And finally, compile the fixed code and make sure it both
3400 // succeeds and has no diagnostics.
3401 let mut rustc = self.make_compile_args(
3402 &self.testpaths.file.with_extension(UI_FIXED),
3403 TargetLocation::ThisFile(self.make_exe_name()),
3407 rustc.arg("-L").arg(&self.aux_output_dir_name());
3408 let res = self.compose_and_run_compiler(rustc, None);
3409 if !res.status.success() {
3410 self.fatal_proc_rec("failed to compile fixed code", &res);
3412 if !res.stderr.is_empty() && !self.props.rustfix_only_machine_applicable {
3413 if !json::rustfix_diagnostics_only(&res.stderr).is_empty() {
3414 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3420 fn run_mir_opt_test(&self) {
3421 let pm = self.pass_mode();
3422 let should_run = self.should_run(pm);
3423 let emit_metadata = self.should_emit_metadata(pm);
3424 let proc_res = self.compile_test(should_run, emit_metadata);
3426 if !proc_res.status.success() {
3427 self.fatal_proc_rec("compilation failed!", &proc_res);
3430 self.check_mir_dump();
3432 if let WillExecute::Yes = should_run {
3433 let proc_res = self.exec_compiled_test();
3435 if !proc_res.status.success() {
3436 self.fatal_proc_rec("test run failed!", &proc_res);
3441 fn check_mir_dump(&self) {
3442 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3444 let test_dir = self.testpaths.file.parent().unwrap();
3446 self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace("-", "_");
3448 let mut bit_width = String::new();
3449 if test_file_contents.lines().any(|l| l == "// EMIT_MIR_FOR_EACH_BIT_WIDTH") {
3450 bit_width = format!(".{}", get_pointer_width(&self.config.target));
3453 if self.config.bless {
3455 glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, bit_width)).unwrap()
3457 std::fs::remove_file(e.unwrap()).unwrap();
3460 glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, bit_width)).unwrap()
3462 std::fs::remove_file(e.unwrap()).unwrap();
3466 for l in test_file_contents.lines() {
3467 if l.starts_with("// EMIT_MIR ") {
3468 let test_name = l.trim_start_matches("// EMIT_MIR ").trim();
3469 let mut test_names = test_name.split(' ');
3470 // sometimes we specify two files so that we get a diff between the two files
3471 let test_name = test_names.next().unwrap();
3472 let mut expected_file;
3476 if test_name.ends_with(".diff") {
3477 let trimmed = test_name.trim_end_matches(".diff");
3478 let test_against = format!("{}.after.mir", trimmed);
3479 from_file = format!("{}.before.mir", trimmed);
3480 expected_file = format!("{}{}.diff", trimmed, bit_width);
3482 test_names.next().is_none(),
3483 "two mir pass names specified for MIR diff"
3485 to_file = Some(test_against);
3486 } else if let Some(first_pass) = test_names.next() {
3487 let second_pass = test_names.next().unwrap();
3489 test_names.next().is_none(),
3490 "three mir pass names specified for MIR diff"
3493 format!("{}{}.{}-{}.diff", test_name, bit_width, first_pass, second_pass);
3494 let second_file = format!("{}.{}.mir", test_name, second_pass);
3495 from_file = format!("{}.{}.mir", test_name, first_pass);
3496 to_file = Some(second_file);
3498 let ext_re = Regex::new(r#"(\.(mir|dot|html))$"#).unwrap();
3500 .captures_iter(test_name)
3502 .expect("test_name has an invalid extension");
3503 let extension = cap.get(1).unwrap().as_str();
3504 expected_file = format!(
3506 test_name.trim_end_matches(extension),
3510 from_file = test_name.to_string();
3512 test_names.next().is_none(),
3513 "two mir pass names specified for MIR dump"
3517 if !expected_file.starts_with(&test_crate) {
3518 expected_file = format!("{}.{}", test_crate, expected_file);
3520 let expected_file = test_dir.join(expected_file);
3522 let dumped_string = if let Some(after) = to_file {
3523 self.diff_mir_files(from_file.into(), after.into())
3525 let mut output_file = PathBuf::new();
3526 output_file.push(self.get_mir_dump_dir());
3527 output_file.push(&from_file);
3529 "comparing the contents of: {} with {}",
3530 output_file.display(),
3531 expected_file.display()
3533 if !output_file.exists() {
3535 "Output file `{}` from test does not exist, available files are in `{}`",
3536 output_file.display(),
3537 output_file.parent().unwrap().display()
3540 self.check_mir_test_timestamp(&from_file, &output_file);
3541 let dumped_string = fs::read_to_string(&output_file).unwrap();
3542 self.normalize_output(&dumped_string, &[])
3545 if self.config.bless {
3546 let _ = std::fs::remove_file(&expected_file);
3547 std::fs::write(expected_file, dumped_string.as_bytes()).unwrap();
3549 if !expected_file.exists() {
3551 "Output file `{}` from test does not exist",
3552 expected_file.display()
3555 let expected_string = fs::read_to_string(&expected_file).unwrap();
3556 if dumped_string != expected_string {
3557 print!("{}", write_diff(&expected_string, &dumped_string, 3));
3559 "Actual MIR output differs from expected MIR output {}",
3560 expected_file.display()
3568 fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String {
3569 let to_full_path = |path: PathBuf| {
3570 let full = self.get_mir_dump_dir().join(&path);
3573 "the mir dump file for {} does not exist (requested in {})",
3575 self.testpaths.file.display(),
3580 let before = to_full_path(before);
3581 let after = to_full_path(after);
3582 debug!("comparing the contents of: {} with {}", before.display(), after.display());
3583 let before = fs::read_to_string(before).unwrap();
3584 let after = fs::read_to_string(after).unwrap();
3585 let before = self.normalize_output(&before, &[]);
3586 let after = self.normalize_output(&after, &[]);
3587 let mut dumped_string = String::new();
3588 for result in diff::lines(&before, &after) {
3589 use std::fmt::Write;
3591 diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(),
3592 diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(),
3593 diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(),
3599 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3600 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3601 let source_file = &self.testpaths.file;
3602 let output_time = t(output_file);
3603 let source_time = t(source_file);
3604 if source_time > output_time {
3605 debug!("source file time: {:?} output file time: {:?}", source_time, output_time);
3607 "test source file `{}` is newer than potentially stale output file `{}`.",
3608 source_file.display(),
3614 fn get_mir_dump_dir(&self) -> PathBuf {
3615 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3616 debug!("input_file: {:?}", self.testpaths.file);
3617 mir_dump_dir.push(&self.testpaths.relative_dir);
3618 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3622 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3623 let cflags = self.props.compile_flags.join(" ");
3624 let json = cflags.contains("--error-format json")
3625 || cflags.contains("--error-format pretty-json")
3626 || cflags.contains("--error-format=json")
3627 || cflags.contains("--error-format=pretty-json")
3628 || cflags.contains("--output-format json")
3629 || cflags.contains("--output-format=json");
3631 let mut normalized = output.to_string();
3633 let mut normalize_path = |from: &Path, to: &str| {
3634 let mut from = from.display().to_string();
3636 from = from.replace("\\", "\\\\");
3638 normalized = normalized.replace(&from, to);
3641 let parent_dir = self.testpaths.file.parent().unwrap();
3642 normalize_path(parent_dir, "$DIR");
3644 // Paths into the libstd/libcore
3655 normalize_path(&src_dir, "$SRC_DIR");
3657 if let Some(virtual_rust_source_base_dir) =
3658 option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR").map(PathBuf::from)
3660 normalize_path(&virtual_rust_source_base_dir.join("library"), "$SRC_DIR");
3663 // Paths into the build directory
3664 let test_build_dir = &self.config.build_base;
3665 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3667 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3668 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3669 // eg. /home/user/rust/build
3670 normalize_path(parent_build_dir, "$BUILD_DIR");
3672 // Paths into lib directory.
3673 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3676 // escaped newlines in json strings should be readable
3677 // in the stderr files. There's no point int being correct,
3678 // since only humans process the stderr files.
3679 // Thus we just turn escaped newlines back into newlines.
3680 normalized = normalized.replace("\\n", "\n");
3683 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3684 // with placeholders as we do not want tests needing updated when compiler source code
3686 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3687 normalized = Regex::new("SRC_DIR(.+):\\d+:\\d+(: \\d+:\\d+)?")
3689 .replace_all(&normalized, "SRC_DIR$1:LL:COL")
3692 normalized = Self::normalize_platform_differences(&normalized);
3693 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3695 // Remove test annotations like `//~ ERROR text` from the output,
3696 // since they duplicate actual errors and make the output hard to read.
3697 // This mirrors the regex in src/tools/tidy/src/style.rs, please update
3698 // both if either are changed.
3700 Regex::new("\\s*//(\\[.*\\])?~.*").unwrap().replace_all(&normalized, "").into_owned();
3702 for rule in custom_rules {
3703 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3704 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3709 /// Normalize output differences across platforms. Generally changes Windows output to be more
3712 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3714 fn normalize_platform_differences(output: &str) -> String {
3716 /// Used to find Windows paths.
3718 /// It's not possible to detect paths in the error messages generally, but this is a
3719 /// decent enough heuristic.
3720 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3722 # Match paths that don't include spaces.
3723 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3725 # If the path starts with a well-known root, then allow spaces.
3726 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3731 let output = output.replace(r"\\", r"\");
3734 .replace_all(&output, |caps: &Captures<'_>| {
3735 println!("{}", &caps[0]);
3736 caps[0].replace(r"\", "/")
3738 .replace("\r\n", "\n")
3741 fn expected_output_path(&self, kind: &str) -> PathBuf {
3743 expected_output_path(&self.testpaths, self.revision, &self.config.compare_mode, kind);
3746 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3747 path = expected_output_path(
3750 &Some(CompareMode::Nll),
3757 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3763 fn load_expected_output(&self, kind: &str) -> String {
3764 let path = self.expected_output_path(kind);
3766 match self.load_expected_output_from_path(&path) {
3768 Err(x) => self.fatal(&x),
3775 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3776 fs::read_to_string(path).map_err(|err| {
3777 format!("failed to load expected output from `{}`: {}", path.display(), err)
3781 fn delete_file(&self, file: &PathBuf) {
3783 // Deleting a nonexistant file would error.
3786 if let Err(e) = fs::remove_file(file) {
3787 self.fatal(&format!("failed to delete `{}`: {}", file.display(), e,));
3791 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3792 if actual == expected {
3796 if !self.config.bless {
3797 if expected.is_empty() {
3798 println!("normalized {}:\n{}\n", kind, actual);
3800 println!("diff of {}:\n", kind);
3801 print!("{}", write_diff(expected, actual, 3));
3805 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3806 let output_file = self
3808 .with_extra_extension(self.revision.unwrap_or(""))
3809 .with_extra_extension(mode)
3810 .with_extra_extension(kind);
3812 let mut files = vec![output_file];
3813 if self.config.bless {
3814 // Delete non-revision .stderr/.stdout file if revisions are used.
3815 // Without this, we'd just generate the new files and leave the old files around.
3816 if self.revision.is_some() {
3818 expected_output_path(self.testpaths, None, &self.config.compare_mode, kind);
3819 self.delete_file(&old);
3821 files.push(expected_output_path(
3824 &self.config.compare_mode,
3829 for output_file in &files {
3830 if actual.is_empty() {
3831 self.delete_file(output_file);
3832 } else if let Err(err) = fs::write(&output_file, &actual) {
3833 self.fatal(&format!(
3834 "failed to write {} to `{}`: {}",
3836 output_file.display(),
3842 println!("\nThe actual {0} differed from the expected {0}.", kind);
3843 for output_file in files {
3844 println!("Actual {} saved to {}", kind, output_file.display());
3846 if self.config.bless { 0 } else { 1 }
3849 fn prune_duplicate_output(&self, mode: CompareMode, kind: &str, canon_content: &str) {
3850 let examined_path = expected_output_path(&self.testpaths, self.revision, &Some(mode), kind);
3852 let examined_content =
3853 self.load_expected_output_from_path(&examined_path).unwrap_or_else(|_| String::new());
3855 if canon_content == examined_content {
3856 self.delete_file(&examined_path);
3860 fn prune_duplicate_outputs(&self, modes: &[CompareMode]) {
3861 if self.config.bless {
3862 for kind in UI_EXTENSIONS {
3863 let canon_comparison_path =
3864 expected_output_path(&self.testpaths, self.revision, &None, kind);
3866 if let Ok(canon) = self.load_expected_output_from_path(&canon_comparison_path) {
3868 self.prune_duplicate_output(mode.clone(), kind, &canon);
3875 fn create_stamp(&self) {
3876 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3877 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3886 pub struct ProcRes {
3894 pub fn fatal(&self, err: Option<&str>, on_failure: impl FnOnce()) -> ! {
3895 if let Some(e) = err {
3896 println!("\nerror: {}", e);
3903 ------------------------------------------\n\
3905 ------------------------------------------\n\
3907 ------------------------------------------\n\
3909 ------------------------------------------\n\
3913 json::extract_rendered(&self.stdout),
3914 json::extract_rendered(&self.stderr),
3917 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3918 // compiletest, which is unnecessary noise.
3919 std::panic::resume_unwind(Box::new(()));
3924 enum TargetLocation {
3926 ThisDirectory(PathBuf),
3934 fn read2_abbreviated(mut child: Child) -> io::Result<Output> {
3935 use crate::read2::read2;
3936 use std::mem::replace;
3938 const HEAD_LEN: usize = 160 * 1024;
3939 const TAIL_LEN: usize = 256 * 1024;
3943 Abbreviated { head: Vec<u8>, skipped: usize, tail: Box<[u8]> },
3947 fn extend(&mut self, data: &[u8]) {
3948 let new_self = match *self {
3949 ProcOutput::Full(ref mut bytes) => {
3950 bytes.extend_from_slice(data);
3951 let new_len = bytes.len();
3952 if new_len <= HEAD_LEN + TAIL_LEN {
3955 let tail = bytes.split_off(new_len - TAIL_LEN).into_boxed_slice();
3956 let head = replace(bytes, Vec::new());
3957 let skipped = new_len - HEAD_LEN - TAIL_LEN;
3958 ProcOutput::Abbreviated { head, skipped, tail }
3960 ProcOutput::Abbreviated { ref mut skipped, ref mut tail, .. } => {
3961 *skipped += data.len();
3962 if data.len() <= TAIL_LEN {
3963 tail[..data.len()].copy_from_slice(data);
3964 tail.rotate_left(data.len());
3966 tail.copy_from_slice(&data[(data.len() - TAIL_LEN)..]);
3974 fn into_bytes(self) -> Vec<u8> {
3976 ProcOutput::Full(bytes) => bytes,
3977 ProcOutput::Abbreviated { mut head, skipped, tail } => {
3978 write!(&mut head, "\n\n<<<<<< SKIPPED {} BYTES >>>>>>\n\n", skipped).unwrap();
3979 head.extend_from_slice(&tail);
3986 let mut stdout = ProcOutput::Full(Vec::new());
3987 let mut stderr = ProcOutput::Full(Vec::new());
3989 drop(child.stdin.take());
3991 child.stdout.take().unwrap(),
3992 child.stderr.take().unwrap(),
3993 &mut |is_stdout, data, _| {
3994 if is_stdout { &mut stdout } else { &mut stderr }.extend(data);
3998 let status = child.wait()?;
4000 Ok(Output { status, stdout: stdout.into_bytes(), stderr: stderr.into_bytes() })