1 // ignore-tidy-filelength
3 use crate::common::{CompareMode, PassMode};
4 use crate::common::{expected_output_path, UI_EXTENSIONS, UI_FIXED, UI_STDERR, UI_STDOUT};
5 use crate::common::{UI_RUN_STDERR, UI_RUN_STDOUT};
6 use crate::common::{output_base_dir, output_base_name, output_testname_unique};
7 use crate::common::{Codegen, CodegenUnits, Rustdoc};
8 use crate::common::{DebugInfoCdb, DebugInfoGdbLldb, DebugInfoGdb, DebugInfoLldb};
9 use crate::common::{CompileFail, Pretty, RunFail, RunPassValgrind};
10 use crate::common::{Config, TestPaths};
11 use crate::common::{Incremental, MirOpt, RunMake, Ui, JsDocTest, Assembly};
13 use crate::errors::{self, Error, ErrorKind};
14 use crate::header::TestProps;
16 use regex::{Captures, Regex};
17 use rustfix::{apply_suggestions, get_suggestions_from_json, Filter};
18 use crate::util::{logv, PathBufExt};
20 use std::collections::hash_map::DefaultHasher;
21 use std::collections::{HashMap, HashSet, VecDeque};
23 use std::ffi::{OsStr, OsString};
25 use std::fs::{self, create_dir_all, File, OpenOptions};
26 use std::hash::{Hash, Hasher};
27 use std::io::prelude::*;
28 use std::io::{self, BufReader};
29 use std::path::{Path, PathBuf};
30 use std::process::{Child, Command, ExitStatus, Output, Stdio};
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 const SEM_NOGPFAULTERRORBOX: u32 = 0x0002;
47 fn SetErrorMode(mode: u32) -> u32;
51 static ref LOCK: Mutex<()> = { Mutex::new(()) };
53 // Error mode is a global variable, so lock it so only one thread will change it
54 let _lock = LOCK.lock().unwrap();
56 // Tell Windows to not show any UI on errors (such as terminating abnormally).
57 // This is important for running tests, since some of them use abnormal
58 // termination by design. This mode is inherited by all child processes.
60 let old_mode = SetErrorMode(SEM_NOGPFAULTERRORBOX); // read inherited flags
61 SetErrorMode(old_mode | SEM_NOGPFAULTERRORBOX);
63 SetErrorMode(old_mode);
69 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
73 /// The name of the environment variable that holds dynamic library locations.
74 pub fn dylib_env_var() -> &'static str {
77 } else if cfg!(target_os = "macos") {
79 } else if cfg!(target_os = "haiku") {
86 /// The platform-specific library name
87 pub fn get_lib_name(lib: &str, dylib: bool) -> String {
88 // In some casess (e.g. MUSL), we build a static
89 // library, rather than a dynamic library.
90 // In this case, the only path we can pass
91 // with '--extern-meta' is the '.lib' file
93 return format!("lib{}.rlib", lib);
97 format!("{}.dll", lib)
98 } else if cfg!(target_os = "macos") {
99 format!("lib{}.dylib", lib)
101 format!("lib{}.so", lib)
105 #[derive(Debug, PartialEq)]
112 #[derive(Debug, PartialEq)]
113 pub struct Mismatch {
114 pub line_number: u32,
115 pub lines: Vec<DiffLine>,
119 fn new(line_number: u32) -> Mismatch {
121 line_number: line_number,
127 // Produces a diff between the expected output and actual output.
128 pub fn make_diff(expected: &str, actual: &str, context_size: usize) -> Vec<Mismatch> {
129 let mut line_number = 1;
130 let mut context_queue: VecDeque<&str> = VecDeque::with_capacity(context_size);
131 let mut lines_since_mismatch = context_size + 1;
132 let mut results = Vec::new();
133 let mut mismatch = Mismatch::new(0);
135 for result in diff::lines(expected, actual) {
137 diff::Result::Left(str) => {
138 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
139 results.push(mismatch);
140 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
143 while let Some(line) = context_queue.pop_front() {
144 mismatch.lines.push(DiffLine::Context(line.to_owned()));
147 mismatch.lines.push(DiffLine::Expected(str.to_owned()));
149 lines_since_mismatch = 0;
151 diff::Result::Right(str) => {
152 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
153 results.push(mismatch);
154 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
157 while let Some(line) = context_queue.pop_front() {
158 mismatch.lines.push(DiffLine::Context(line.to_owned()));
161 mismatch.lines.push(DiffLine::Resulting(str.to_owned()));
162 lines_since_mismatch = 0;
164 diff::Result::Both(str, _) => {
165 if context_queue.len() >= context_size {
166 let _ = context_queue.pop_front();
169 if lines_since_mismatch < context_size {
170 mismatch.lines.push(DiffLine::Context(str.to_owned()));
171 } else if context_size > 0 {
172 context_queue.push_back(str);
176 lines_since_mismatch += 1;
181 results.push(mismatch);
187 pub fn run(config: Config, testpaths: &TestPaths, revision: Option<&str>) {
188 match &*config.target {
189 "arm-linux-androideabi"
190 | "armv7-linux-androideabi"
191 | "thumbv7neon-linux-androideabi"
192 | "aarch64-linux-android" => {
193 if !config.adb_device_status {
194 panic!("android device not available");
199 // android has its own gdb handling
200 if config.mode == DebugInfoGdb && config.gdb.is_none() {
201 panic!("gdb not available but debuginfo gdb debuginfo test requested");
207 // We're going to be dumping a lot of info. Start on a new line.
210 debug!("running {:?}", testpaths.file.display());
211 let props = TestProps::from_file(&testpaths.file, revision, &config);
219 create_dir_all(&cx.output_base_dir()).unwrap();
221 if config.mode == Incremental {
222 // Incremental tests are special because they cannot be run in
225 !props.revisions.is_empty(),
226 "Incremental tests require revisions."
228 cx.init_incremental_test();
229 for revision in &props.revisions {
230 let revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
231 let rev_cx = TestCx {
233 props: &revision_props,
235 revision: Some(revision),
237 rev_cx.run_revision();
246 pub fn compute_stamp_hash(config: &Config) -> String {
247 let mut hash = DefaultHasher::new();
248 config.stage_id.hash(&mut hash);
250 if config.mode == DebugInfoCdb {
251 config.cdb.hash(&mut hash);
254 if config.mode == DebugInfoGdb || config.mode == DebugInfoGdbLldb {
256 None => env::var_os("PATH").hash(&mut hash),
257 Some(ref s) if s.is_empty() => env::var_os("PATH").hash(&mut hash),
258 Some(ref s) => s.hash(&mut hash),
262 if config.mode == DebugInfoLldb || config.mode == DebugInfoGdbLldb {
263 env::var_os("PATH").hash(&mut hash);
264 env::var_os("PYTHONPATH").hash(&mut hash);
267 if let Ui | Incremental | Pretty = config.mode {
268 config.force_pass_mode.hash(&mut hash);
271 format!("{:x}", hash.finish())
274 struct TestCx<'test> {
275 config: &'test Config,
276 props: &'test TestProps,
277 testpaths: &'test TestPaths,
278 revision: Option<&'test str>,
281 struct DebuggerCommands {
282 commands: Vec<String>,
283 check_lines: Vec<String>,
284 breakpoint_lines: Vec<usize>,
297 impl<'test> TestCx<'test> {
298 /// Code executed for each revision in turn (or, if there are no
299 /// revisions, exactly once, with revision == None).
300 fn run_revision(&self) {
301 if self.props.should_ice {
302 if self.config.mode != CompileFail &&
303 self.config.mode != Incremental {
304 self.fatal("cannot use should-ice in a test that is not cfail");
307 match self.config.mode {
308 CompileFail => self.run_cfail_test(),
309 RunFail => self.run_rfail_test(),
310 RunPassValgrind => self.run_valgrind_test(),
311 Pretty => self.run_pretty_test(),
312 DebugInfoGdbLldb => {
313 self.run_debuginfo_gdb_test();
314 self.run_debuginfo_lldb_test();
316 DebugInfoCdb => self.run_debuginfo_cdb_test(),
317 DebugInfoGdb => self.run_debuginfo_gdb_test(),
318 DebugInfoLldb => self.run_debuginfo_lldb_test(),
319 Codegen => self.run_codegen_test(),
320 Rustdoc => self.run_rustdoc_test(),
321 CodegenUnits => self.run_codegen_units_test(),
322 Incremental => self.run_incremental_test(),
323 RunMake => self.run_rmake_test(),
324 Ui => self.run_ui_test(),
325 MirOpt => self.run_mir_opt_test(),
326 Assembly => self.run_assembly_test(),
327 JsDocTest => self.run_js_doc_test(),
331 fn pass_mode(&self) -> Option<PassMode> {
332 self.props.pass_mode(self.config)
335 fn should_run(&self) -> bool {
336 let pass_mode = self.pass_mode();
337 match self.config.mode {
338 Ui => pass_mode == Some(PassMode::Run) || pass_mode == Some(PassMode::RunFail),
339 mode => panic!("unimplemented for mode {:?}", mode),
343 fn should_run_successfully(&self) -> bool {
344 let pass_mode = self.pass_mode();
345 match self.config.mode {
346 Ui => pass_mode == Some(PassMode::Run),
347 mode => panic!("unimplemented for mode {:?}", mode),
351 fn should_compile_successfully(&self) -> bool {
352 match self.config.mode {
353 CompileFail => false,
355 Ui => self.pass_mode().is_some(),
357 let revision = self.revision
358 .expect("incremental tests require a list of revisions");
359 if revision.starts_with("rpass") || revision.starts_with("rfail") {
361 } else if revision.starts_with("cfail") {
362 // FIXME: would be nice if incremental revs could start with "cpass"
363 self.pass_mode().is_some()
365 panic!("revision name must begin with rpass, rfail, or cfail");
368 mode => panic!("unimplemented for mode {:?}", mode),
372 fn check_if_test_should_compile(&self, proc_res: &ProcRes) {
373 if self.should_compile_successfully() {
374 if !proc_res.status.success() {
375 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
378 if proc_res.status.success() {
380 &format!("{} test compiled successfully!", self.config.mode)[..],
385 self.check_correct_failure_status(proc_res);
389 fn run_cfail_test(&self) {
390 let proc_res = self.compile_test();
391 self.check_if_test_should_compile(&proc_res);
392 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
394 let output_to_check = self.get_output(&proc_res);
395 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
396 if !expected_errors.is_empty() {
397 if !self.props.error_patterns.is_empty() {
398 self.fatal("both error pattern and expected errors specified");
400 self.check_expected_errors(expected_errors, &proc_res);
402 self.check_error_patterns(&output_to_check, &proc_res);
404 if self.props.should_ice {
405 match proc_res.status.code() {
407 _ => self.fatal("expected ICE"),
411 self.check_forbid_output(&output_to_check, &proc_res);
414 fn run_rfail_test(&self) {
415 let proc_res = self.compile_test();
417 if !proc_res.status.success() {
418 self.fatal_proc_rec("compilation failed!", &proc_res);
421 let proc_res = self.exec_compiled_test();
423 // The value our Makefile configures valgrind to return on failure
424 const VALGRIND_ERR: i32 = 100;
425 if proc_res.status.code() == Some(VALGRIND_ERR) {
426 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
429 let output_to_check = self.get_output(&proc_res);
430 self.check_correct_failure_status(&proc_res);
431 self.check_error_patterns(&output_to_check, &proc_res);
434 fn get_output(&self, proc_res: &ProcRes) -> String {
435 if self.props.check_stdout {
436 format!("{}{}", proc_res.stdout, proc_res.stderr)
438 proc_res.stderr.clone()
442 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
443 let expected_status = Some(self.props.failure_status);
444 let received_status = proc_res.status.code();
446 if expected_status != received_status {
449 "Error: expected failure status ({:?}) but received status {:?}.",
450 expected_status, received_status
457 fn run_rpass_test(&self) {
458 let proc_res = self.compile_test();
460 if !proc_res.status.success() {
461 self.fatal_proc_rec("compilation failed!", &proc_res);
464 // FIXME(#41968): Move this check to tidy?
465 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
467 expected_errors.is_empty(),
468 "run-pass tests with expected warnings should be moved to ui/"
471 let proc_res = self.exec_compiled_test();
472 if !proc_res.status.success() {
473 self.fatal_proc_rec("test run failed!", &proc_res);
477 fn run_valgrind_test(&self) {
478 assert!(self.revision.is_none(), "revisions not relevant here");
480 if self.config.valgrind_path.is_none() {
481 assert!(!self.config.force_valgrind);
482 return self.run_rpass_test();
485 let mut proc_res = self.compile_test();
487 if !proc_res.status.success() {
488 self.fatal_proc_rec("compilation failed!", &proc_res);
491 let mut new_config = self.config.clone();
492 new_config.runtool = new_config.valgrind_path.clone();
493 let new_cx = TestCx {
497 proc_res = new_cx.exec_compiled_test();
499 if !proc_res.status.success() {
500 self.fatal_proc_rec("test run failed!", &proc_res);
504 fn run_pretty_test(&self) {
505 if self.props.pp_exact.is_some() {
506 logv(self.config, "testing for exact pretty-printing".to_owned());
510 "testing for converging pretty-printing".to_owned(),
514 let rounds = match self.props.pp_exact {
519 let src = fs::read_to_string(&self.testpaths.file).unwrap();
520 let mut srcs = vec![src];
523 while round < rounds {
527 "pretty-printing round {} revision {:?}",
531 let read_from = if round == 0 {
534 ReadFrom::Stdin(srcs[round].to_owned())
537 let proc_res = self.print_source(read_from,
538 &self.props.pretty_mode);
539 if !proc_res.status.success() {
542 "pretty-printing failed in round {} revision {:?}",
549 let ProcRes { stdout, .. } = proc_res;
554 let mut expected = match self.props.pp_exact {
556 let filepath = self.testpaths.file.parent().unwrap().join(file);
557 fs::read_to_string(&filepath).unwrap()
559 None => srcs[srcs.len() - 2].clone(),
561 let mut actual = srcs[srcs.len() - 1].clone();
563 if self.props.pp_exact.is_some() {
564 // Now we have to care about line endings
565 let cr = "\r".to_owned();
566 actual = actual.replace(&cr, "").to_owned();
567 expected = expected.replace(&cr, "").to_owned();
570 self.compare_source(&expected, &actual);
572 // If we're only making sure that the output matches then just stop here
573 if self.props.pretty_compare_only {
577 // Finally, let's make sure it actually appears to remain valid code
578 let proc_res = self.typecheck_source(actual);
579 if !proc_res.status.success() {
580 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
583 if !self.props.pretty_expanded {
587 // additionally, run `--pretty expanded` and try to build it.
588 let proc_res = self.print_source(ReadFrom::Path, "expanded");
589 if !proc_res.status.success() {
590 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
594 stdout: expanded_src,
597 let proc_res = self.typecheck_source(expanded_src);
598 if !proc_res.status.success() {
600 "pretty-printed source (expanded) does not typecheck",
606 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
607 let aux_dir = self.aux_output_dir_name();
608 let input: &str = match read_from {
609 ReadFrom::Stdin(_) => "-",
610 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
613 let mut rustc = Command::new(&self.config.rustc_path);
616 .args(&["-Z", &format!("unpretty={}", pretty_type)])
617 .args(&["--target", &self.config.target])
620 .args(&self.props.compile_flags)
621 .envs(self.props.exec_env.clone());
622 self.maybe_add_external_args(&mut rustc,
623 self.split_maybe_args(&self.config.target_rustcflags));
625 let src = match read_from {
626 ReadFrom::Stdin(src) => Some(src),
627 ReadFrom::Path => None
630 self.compose_and_run(
632 self.config.compile_lib_path.to_str().unwrap(),
633 Some(aux_dir.to_str().unwrap()),
638 fn compare_source(&self, expected: &str, actual: &str) {
639 if expected != actual {
641 "pretty-printed source does not match expected source\n\
643 ------------------------------------------\n\
645 ------------------------------------------\n\
647 ------------------------------------------\n\
649 ------------------------------------------\n\
656 fn set_revision_flags(&self, cmd: &mut Command) {
657 if let Some(revision) = self.revision {
658 // Normalize revisions to be lowercase and replace `-`s with `_`s.
659 // Otherwise the `--cfg` flag is not valid.
660 let normalized_revision = revision.to_lowercase().replace("-", "_");
661 cmd.args(&["--cfg", &normalized_revision]);
665 fn typecheck_source(&self, src: String) -> ProcRes {
666 let mut rustc = Command::new(&self.config.rustc_path);
668 let out_dir = self.output_base_name().with_extension("pretty-out");
669 let _ = fs::remove_dir_all(&out_dir);
670 create_dir_all(&out_dir).unwrap();
672 let target = if self.props.force_host {
678 let aux_dir = self.aux_output_dir_name();
685 .arg(&format!("--target={}", target))
687 .arg(&self.config.build_base)
690 self.set_revision_flags(&mut rustc);
691 self.maybe_add_external_args(&mut rustc,
692 self.split_maybe_args(&self.config.target_rustcflags));
693 rustc.args(&self.props.compile_flags);
695 self.compose_and_run_compiler(rustc, Some(src))
698 fn run_debuginfo_cdb_test(&self) {
699 assert!(self.revision.is_none(), "revisions not relevant here");
701 let config = Config {
702 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
703 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
705 ..self.config.clone()
708 let test_cx = TestCx {
713 test_cx.run_debuginfo_cdb_test_no_opt();
716 fn run_debuginfo_cdb_test_no_opt(&self) {
717 // compile test file (it should have 'compile-flags:-g' in the header)
718 let compile_result = self.compile_test();
719 if !compile_result.status.success() {
720 self.fatal_proc_rec("compilation failed!", &compile_result);
723 let exe_file = self.make_exe_name();
726 static PREFIXES: &'static [&'static str] = &["cdb", "cdbg"];
727 // No "native rust support" variation for CDB yet.
731 // Parse debugger commands etc from test files
732 let DebuggerCommands {
737 } = self.parse_debugger_commands(prefixes);
739 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
740 let mut script_str = String::with_capacity(2048);
741 script_str.push_str("version\n"); // List CDB (and more) version info in test output
742 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
744 // Set breakpoints on every line that contains the string "#break"
745 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
746 for line in &breakpoint_lines {
747 script_str.push_str(&format!(
749 source_file_name, line
753 // Append the other `cdb-command:`s
754 for line in &commands {
755 script_str.push_str(line);
756 script_str.push_str("\n");
759 script_str.push_str("\nqq\n"); // Quit the debugger (including remote debugger, if any)
761 // Write the script into a file
762 debug!("script_str = {}", script_str);
763 self.dump_output_file(&script_str, "debugger.script");
764 let debugger_script = self.make_out_name("debugger.script");
766 let cdb_path = &self.config.cdb.as_ref().unwrap();
767 let mut cdb = Command::new(cdb_path);
769 .arg("-lines") // Enable source line debugging.
770 .arg("-cf").arg(&debugger_script)
773 let debugger_run_result = self.compose_and_run(
775 self.config.run_lib_path.to_str().unwrap(),
780 if !debugger_run_result.status.success() {
781 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
784 self.check_debugger_output(&debugger_run_result, &check_lines);
787 fn run_debuginfo_gdb_test(&self) {
788 assert!(self.revision.is_none(), "revisions not relevant here");
790 let config = Config {
791 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
792 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
794 ..self.config.clone()
797 let test_cx = TestCx {
802 test_cx.run_debuginfo_gdb_test_no_opt();
805 fn run_debuginfo_gdb_test_no_opt(&self) {
806 let prefixes = if self.config.gdb_native_rust {
808 static PREFIXES: &'static [&'static str] = &["gdb", "gdbr"];
809 println!("NOTE: compiletest thinks it is using GDB with native rust support");
813 static PREFIXES: &'static [&'static str] = &["gdb", "gdbg"];
814 println!("NOTE: compiletest thinks it is using GDB without native rust support");
818 let DebuggerCommands {
822 } = self.parse_debugger_commands(prefixes);
823 let mut cmds = commands.join("\n");
825 // compile test file (it should have 'compile-flags:-g' in the header)
826 let compiler_run_result = self.compile_test();
827 if !compiler_run_result.status.success() {
828 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
831 let exe_file = self.make_exe_name();
833 let debugger_run_result;
834 if is_android_gdb_target(&self.config.target) {
835 cmds = cmds.replace("run", "continue");
837 let tool_path = match self.config.android_cross_path.to_str() {
838 Some(x) => x.to_owned(),
839 None => self.fatal("cannot find android cross path"),
842 // write debugger script
843 let mut script_str = String::with_capacity(2048);
844 script_str.push_str(&format!("set charset {}\n", Self::charset()));
845 script_str.push_str(&format!("set sysroot {}\n", tool_path));
846 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
847 script_str.push_str("target remote :5039\n");
848 script_str.push_str(&format!(
849 "set solib-search-path \
850 ./{}/stage2/lib/rustlib/{}/lib/\n",
851 self.config.host, self.config.target
853 for line in &breakpoint_lines {
857 self.testpaths.file.file_name().unwrap().to_string_lossy(),
862 script_str.push_str(&cmds);
863 script_str.push_str("\nquit\n");
865 debug!("script_str = {}", script_str);
866 self.dump_output_file(&script_str, "debugger.script");
868 let adb_path = &self.config.adb_path;
870 Command::new(adb_path)
873 .arg(&self.config.adb_test_dir)
875 .expect(&format!("failed to exec `{:?}`", adb_path));
877 Command::new(adb_path)
878 .args(&["forward", "tcp:5039", "tcp:5039"])
880 .expect(&format!("failed to exec `{:?}`", adb_path));
882 let adb_arg = format!(
883 "export LD_LIBRARY_PATH={}; \
884 gdbserver{} :5039 {}/{}",
885 self.config.adb_test_dir.clone(),
886 if self.config.target.contains("aarch64") {
891 self.config.adb_test_dir.clone(),
892 exe_file.file_name().unwrap().to_str().unwrap()
895 debug!("adb arg: {}", adb_arg);
896 let mut adb = Command::new(adb_path)
897 .args(&["shell", &adb_arg])
898 .stdout(Stdio::piped())
899 .stderr(Stdio::inherit())
901 .expect(&format!("failed to exec `{:?}`", adb_path));
903 // Wait for the gdbserver to print out "Listening on port ..."
904 // at which point we know that it's started and then we can
905 // execute the debugger below.
906 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
907 let mut line = String::new();
910 stdout.read_line(&mut line).unwrap();
911 if line.starts_with("Listening on port 5039") {
917 let mut debugger_script = OsString::from("-command=");
918 debugger_script.push(self.make_out_name("debugger.script"));
919 let debugger_opts: &[&OsStr] = &[
926 let gdb_path = self.config.gdb.as_ref().unwrap();
931 } = Command::new(&gdb_path)
934 .expect(&format!("failed to exec `{:?}`", gdb_path));
936 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
937 gdb.args(debugger_opts);
938 let cmdline = self.make_cmdline(&gdb, "");
939 logv(self.config, format!("executing {}", cmdline));
943 debugger_run_result = ProcRes {
945 stdout: String::from_utf8(stdout).unwrap(),
946 stderr: String::from_utf8(stderr).unwrap(),
949 if adb.kill().is_err() {
950 println!("Adb process is already finished.");
953 let rust_src_root = self
955 .find_rust_src_root()
956 .expect("Could not find Rust source root");
957 let rust_pp_module_rel_path = Path::new("./src/etc");
958 let rust_pp_module_abs_path = rust_src_root
959 .join(rust_pp_module_rel_path)
963 // write debugger script
964 let mut script_str = String::with_capacity(2048);
965 script_str.push_str(&format!("set charset {}\n", Self::charset()));
966 script_str.push_str("show version\n");
968 match self.config.gdb_version {
971 "NOTE: compiletest thinks it is using GDB version {}",
975 if version > extract_gdb_version("7.4").unwrap() {
976 // Add the directory containing the pretty printers to
977 // GDB's script auto loading safe path
978 script_str.push_str(&format!(
979 "add-auto-load-safe-path {}\n",
980 rust_pp_module_abs_path.replace(r"\", r"\\")
986 "NOTE: compiletest does not know which version of \
992 // The following line actually doesn't have to do anything with
993 // pretty printing, it just tells GDB to print values on one line:
994 script_str.push_str("set print pretty off\n");
996 // Add the pretty printer directory to GDB's source-file search path
997 script_str.push_str(&format!("directory {}\n", rust_pp_module_abs_path));
999 // Load the target executable
1000 script_str.push_str(&format!(
1002 exe_file.to_str().unwrap().replace(r"\", r"\\")
1005 // Force GDB to print values in the Rust format.
1006 if self.config.gdb_native_rust {
1007 script_str.push_str("set language rust\n");
1010 // Add line breakpoints
1011 for line in &breakpoint_lines {
1012 script_str.push_str(&format!(
1014 self.testpaths.file.file_name().unwrap().to_string_lossy(),
1019 script_str.push_str(&cmds);
1020 script_str.push_str("\nquit\n");
1022 debug!("script_str = {}", script_str);
1023 self.dump_output_file(&script_str, "debugger.script");
1025 let mut debugger_script = OsString::from("-command=");
1026 debugger_script.push(self.make_out_name("debugger.script"));
1028 let debugger_opts: &[&OsStr] = &[
1035 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
1036 gdb.args(debugger_opts)
1037 .env("PYTHONPATH", rust_pp_module_abs_path);
1039 debugger_run_result = self.compose_and_run(
1041 self.config.run_lib_path.to_str().unwrap(),
1047 if !debugger_run_result.status.success() {
1048 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
1051 self.check_debugger_output(&debugger_run_result, &check_lines);
1054 fn run_debuginfo_lldb_test(&self) {
1055 assert!(self.revision.is_none(), "revisions not relevant here");
1057 if self.config.lldb_python_dir.is_none() {
1058 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1061 let config = Config {
1062 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1063 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1064 mode: DebugInfoLldb,
1065 ..self.config.clone()
1068 let test_cx = TestCx {
1073 test_cx.run_debuginfo_lldb_test_no_opt();
1076 fn run_debuginfo_lldb_test_no_opt(&self) {
1077 // compile test file (it should have 'compile-flags:-g' in the header)
1078 let compile_result = self.compile_test();
1079 if !compile_result.status.success() {
1080 self.fatal_proc_rec("compilation failed!", &compile_result);
1083 let exe_file = self.make_exe_name();
1085 match self.config.lldb_version {
1086 Some(ref version) => {
1088 "NOTE: compiletest thinks it is using LLDB version {}",
1094 "NOTE: compiletest does not know which version of \
1100 let prefixes = if self.config.lldb_native_rust {
1101 static PREFIXES: &'static [&'static str] = &["lldb", "lldbr"];
1102 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1105 static PREFIXES: &'static [&'static str] = &["lldb", "lldbg"];
1106 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1110 // Parse debugger commands etc from test files
1111 let DebuggerCommands {
1116 } = self.parse_debugger_commands(prefixes);
1118 // Write debugger script:
1119 // We don't want to hang when calling `quit` while the process is still running
1120 let mut script_str = String::from("settings set auto-confirm true\n");
1122 // Make LLDB emit its version, so we have it documented in the test output
1123 script_str.push_str("version\n");
1125 // Switch LLDB into "Rust mode"
1126 let rust_src_root = self
1128 .find_rust_src_root()
1129 .expect("Could not find Rust source root");
1130 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_rust_formatters.py");
1131 let rust_pp_module_abs_path = rust_src_root
1132 .join(rust_pp_module_rel_path)
1138 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1139 script_str.push_str("type summary add --no-value ");
1140 script_str.push_str("--python-function lldb_rust_formatters.print_val ");
1141 script_str.push_str("-x \".*\" --category Rust\n");
1142 script_str.push_str("type category enable Rust\n");
1144 // Set breakpoints on every line that contains the string "#break"
1145 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1146 for line in &breakpoint_lines {
1147 script_str.push_str(&format!(
1148 "breakpoint set --file '{}' --line {}\n",
1149 source_file_name, line
1153 // Append the other commands
1154 for line in &commands {
1155 script_str.push_str(line);
1156 script_str.push_str("\n");
1159 // Finally, quit the debugger
1160 script_str.push_str("\nquit\n");
1162 // Write the script into a file
1163 debug!("script_str = {}", script_str);
1164 self.dump_output_file(&script_str, "debugger.script");
1165 let debugger_script = self.make_out_name("debugger.script");
1167 // Let LLDB execute the script via lldb_batchmode.py
1168 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1170 if !debugger_run_result.status.success() {
1171 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1174 self.check_debugger_output(&debugger_run_result, &check_lines);
1179 test_executable: &Path,
1180 debugger_script: &Path,
1181 rust_src_root: &Path,
1183 // Prepare the lldb_batchmode which executes the debugger script
1184 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1186 Command::new(&self.config.lldb_python)
1187 .arg(&lldb_script_path)
1188 .arg(test_executable)
1189 .arg(debugger_script)
1190 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1194 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1195 let (status, out, err) = match cmd.output() {
1202 String::from_utf8(stdout).unwrap(),
1203 String::from_utf8(stderr).unwrap(),
1205 Err(e) => self.fatal(&format!(
1206 "Failed to setup Python process for \
1212 self.dump_output(&out, &err);
1217 cmdline: format!("{:?}", cmd),
1221 fn parse_debugger_commands(&self, debugger_prefixes: &[&str]) -> DebuggerCommands {
1222 let directives = debugger_prefixes
1224 .map(|prefix| (format!("{}-command", prefix), format!("{}-check", prefix)))
1225 .collect::<Vec<_>>();
1227 let mut breakpoint_lines = vec![];
1228 let mut commands = vec![];
1229 let mut check_lines = vec![];
1230 let mut counter = 1;
1231 let reader = BufReader::new(File::open(&self.testpaths.file).unwrap());
1232 for line in reader.lines() {
1235 let line = if line.starts_with("//") {
1236 line[2..].trim_start()
1241 if line.contains("#break") {
1242 breakpoint_lines.push(counter);
1245 for &(ref command_directive, ref check_directive) in &directives {
1247 .parse_name_value_directive(&line, command_directive)
1248 .map(|cmd| commands.push(cmd));
1251 .parse_name_value_directive(&line, check_directive)
1252 .map(|cmd| check_lines.push(cmd));
1255 Err(e) => self.fatal(&format!("Error while parsing debugger commands: {}", e)),
1267 fn cleanup_debug_info_options(&self, options: &Option<String>) -> Option<String> {
1268 if options.is_none() {
1272 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1273 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1274 let new_options = self
1275 .split_maybe_args(options)
1277 .filter(|x| !options_to_remove.contains(x))
1278 .collect::<Vec<String>>();
1280 Some(new_options.join(" "))
1283 fn maybe_add_external_args(&self, cmd: &mut Command, args: Vec<String>) {
1284 // Filter out the arguments that should not be added by runtest here.
1286 // Notable use-cases are: do not add our optimisation flag if
1287 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1288 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/"opt-level="];
1289 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/"debuginfo="];
1291 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1292 // its arguments. They need to be collected separately. For now I cannot be bothered to
1293 // implement this the "right" way.
1294 let have_opt_flag = self.props.compile_flags.iter().any(|arg| {
1295 OPT_FLAGS.iter().any(|f| arg.starts_with(f))
1297 let have_debug_flag = self.props.compile_flags.iter().any(|arg| {
1298 DEBUG_FLAGS.iter().any(|f| arg.starts_with(f))
1302 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1305 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1312 fn check_debugger_output(&self, debugger_run_result: &ProcRes, check_lines: &[String]) {
1313 let num_check_lines = check_lines.len();
1315 let mut check_line_index = 0;
1316 for line in debugger_run_result.stdout.lines() {
1317 if check_line_index >= num_check_lines {
1321 if check_single_line(line, &(check_lines[check_line_index])[..]) {
1322 check_line_index += 1;
1325 if check_line_index != num_check_lines && num_check_lines > 0 {
1326 self.fatal_proc_rec(
1328 "line not found in debugger output: {}",
1329 check_lines[check_line_index]
1331 debugger_run_result,
1335 fn check_single_line(line: &str, check_line: &str) -> bool {
1336 // Allow check lines to leave parts unspecified (e.g., uninitialized
1337 // bits in the wrong case of an enum) with the notation "[...]".
1338 let line = line.trim();
1339 let check_line = check_line.trim();
1340 let can_start_anywhere = check_line.starts_with("[...]");
1341 let can_end_anywhere = check_line.ends_with("[...]");
1343 let check_fragments: Vec<&str> = check_line
1345 .filter(|frag| !frag.is_empty())
1347 if check_fragments.is_empty() {
1351 let (mut rest, first_fragment) = if can_start_anywhere {
1352 match line.find(check_fragments[0]) {
1353 Some(pos) => (&line[pos + check_fragments[0].len()..], 1),
1354 None => return false,
1360 for current_fragment in &check_fragments[first_fragment..] {
1361 match rest.find(current_fragment) {
1363 rest = &rest[pos + current_fragment.len()..];
1365 None => return false,
1369 if !can_end_anywhere && !rest.is_empty() {
1377 fn check_error_patterns(&self, output_to_check: &str, proc_res: &ProcRes) {
1378 debug!("check_error_patterns");
1379 if self.props.error_patterns.is_empty() {
1380 if self.pass_mode().is_some() {
1383 self.fatal(&format!(
1384 "no error pattern specified in {:?}",
1385 self.testpaths.file.display()
1390 let mut missing_patterns: Vec<String> = Vec::new();
1392 for pattern in &self.props.error_patterns {
1393 if output_to_check.contains(pattern.trim()) {
1394 debug!("found error pattern {}", pattern);
1396 missing_patterns.push(pattern.to_string());
1400 if missing_patterns.is_empty() {
1404 if missing_patterns.len() == 1 {
1405 self.fatal_proc_rec(
1406 &format!("error pattern '{}' not found!", missing_patterns[0]),
1410 for pattern in missing_patterns {
1411 self.error(&format!("error pattern '{}' not found!", pattern));
1413 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1417 fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) {
1418 match proc_res.status.code() {
1419 Some(101) if !should_ice => {
1420 self.fatal_proc_rec("compiler encountered internal error", proc_res)
1422 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1427 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1428 for pat in &self.props.forbid_output {
1429 if output_to_check.contains(pat) {
1430 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1435 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1436 debug!("check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1437 expected_errors, proc_res.status);
1438 if proc_res.status.success()
1441 .any(|x| x.kind == Some(ErrorKind::Error))
1443 self.fatal_proc_rec("process did not return an error status", proc_res);
1446 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1447 // from the compiler
1448 let os_file_name = self.testpaths.file.display().to_string();
1450 // on windows, translate all '\' path separators to '/'
1451 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1453 // If the testcase being checked contains at least one expected "help"
1454 // message, then we'll ensure that all "help" messages are expected.
1455 // Otherwise, all "help" messages reported by the compiler will be ignored.
1456 // This logic also applies to "note" messages.
1457 let expect_help = expected_errors
1459 .any(|ee| ee.kind == Some(ErrorKind::Help));
1460 let expect_note = expected_errors
1462 .any(|ee| ee.kind == Some(ErrorKind::Note));
1464 // Parse the JSON output from the compiler and extract out the messages.
1465 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1466 let mut unexpected = Vec::new();
1467 let mut found = vec![false; expected_errors.len()];
1468 for actual_error in &actual_errors {
1469 let opt_index = expected_errors.iter().enumerate().position(
1470 |(index, expected_error)| {
1471 !found[index] && actual_error.line_num == expected_error.line_num
1472 && (expected_error.kind.is_none()
1473 || actual_error.kind == expected_error.kind)
1474 && actual_error.msg.contains(&expected_error.msg)
1480 // found a match, everybody is happy
1481 assert!(!found[index]);
1482 found[index] = true;
1486 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1487 self.error(&format!(
1488 "{}:{}: unexpected {}: '{}'",
1490 actual_error.line_num,
1494 .map_or(String::from("message"), |k| k.to_string()),
1497 unexpected.push(actual_error);
1503 let mut not_found = Vec::new();
1504 // anything not yet found is a problem
1505 for (index, expected_error) in expected_errors.iter().enumerate() {
1507 self.error(&format!(
1508 "{}:{}: expected {} not found: {}",
1510 expected_error.line_num,
1514 .map_or("message".into(), |k| k.to_string()),
1517 not_found.push(expected_error);
1521 if !unexpected.is_empty() || !not_found.is_empty() {
1522 self.error(&format!(
1523 "{} unexpected errors found, {} expected errors not found",
1527 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1528 if !unexpected.is_empty() {
1529 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1531 if !not_found.is_empty() {
1532 println!("not found errors (from test file): {:#?}\n", not_found);
1538 /// Returns `true` if we should report an error about `actual_error`,
1539 /// which did not match any of the expected error. We always require
1540 /// errors/warnings to be explicitly listed, but only require
1541 /// helps/notes if there are explicit helps/notes given.
1542 fn is_unexpected_compiler_message(
1544 actual_error: &Error,
1548 match actual_error.kind {
1549 Some(ErrorKind::Help) => expect_help,
1550 Some(ErrorKind::Note) => expect_note,
1551 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1552 Some(ErrorKind::Suggestion) | None => false,
1556 fn compile_test(&self) -> ProcRes {
1557 // Only use `make_exe_name` when the test ends up being executed.
1558 let will_execute = match self.config.mode {
1559 Ui => self.should_run(),
1560 Incremental => self.revision.unwrap().starts_with("r"),
1561 RunFail | RunPassValgrind | MirOpt |
1562 DebugInfoCdb | DebugInfoGdbLldb | DebugInfoGdb | DebugInfoLldb => true,
1565 let output_file = if will_execute {
1566 TargetLocation::ThisFile(self.make_exe_name())
1568 TargetLocation::ThisDirectory(self.output_base_dir())
1571 let mut rustc = self.make_compile_args(&self.testpaths.file, output_file);
1573 rustc.arg("-L").arg(&self.aux_output_dir_name());
1575 match self.config.mode {
1576 CompileFail | Ui => {
1577 // compile-fail and ui tests tend to have tons of unused code as
1578 // it's just testing various pieces of the compile, but we don't
1579 // want to actually assert warnings about all this code. Instead
1580 // let's just ignore unused code warnings by defaults and tests
1581 // can turn it back on if needed.
1582 if !self.config.src_base.ends_with("rustdoc-ui") &&
1583 // Note that we don't call pass_mode() here as we don't want
1584 // to set unused to allow if we've overriden the pass mode
1585 // via command line flags.
1586 self.props.local_pass_mode() != Some(PassMode::Run) {
1587 rustc.args(&["-A", "unused"]);
1593 self.compose_and_run_compiler(rustc, None)
1596 fn document(&self, out_dir: &Path) -> ProcRes {
1597 if self.props.build_aux_docs {
1598 for rel_ab in &self.props.aux_builds {
1599 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1602 .from_aux_file(&aux_testpaths.file, self.revision, self.config);
1603 let aux_cx = TestCx {
1604 config: self.config,
1606 testpaths: &aux_testpaths,
1607 revision: self.revision,
1609 // Create the directory for the stdout/stderr files.
1610 create_dir_all(aux_cx.output_base_dir()).unwrap();
1611 let auxres = aux_cx.document(out_dir);
1612 if !auxres.status.success() {
1618 let aux_dir = self.aux_output_dir_name();
1620 let rustdoc_path = self
1624 .expect("--rustdoc-path passed");
1625 let mut rustdoc = Command::new(rustdoc_path);
1629 .arg(self.config.run_lib_path.to_str().unwrap())
1634 .arg(&self.testpaths.file)
1635 .args(&self.props.compile_flags);
1637 if let Some(ref linker) = self.config.linker {
1638 rustdoc.arg(format!("-Clinker={}", linker));
1641 self.compose_and_run_compiler(rustdoc, None)
1644 fn exec_compiled_test(&self) -> ProcRes {
1645 let env = &self.props.exec_env;
1647 let proc_res = match &*self.config.target {
1648 // This is pretty similar to below, we're transforming:
1650 // program arg1 arg2
1654 // remote-test-client run program:support-lib.so arg1 arg2
1656 // The test-client program will upload `program` to the emulator
1657 // along with all other support libraries listed (in this case
1658 // `support-lib.so`. It will then execute the program on the
1659 // emulator with the arguments specified (in the environment we give
1660 // the process) and then report back the same result.
1661 _ if self.config.remote_test_client.is_some() => {
1662 let aux_dir = self.aux_output_dir_name();
1663 let ProcArgs { mut prog, args } = self.make_run_args();
1664 if let Ok(entries) = aux_dir.read_dir() {
1665 for entry in entries {
1666 let entry = entry.unwrap();
1667 if !entry.path().is_file() {
1671 prog.push_str(entry.path().to_str().unwrap());
1674 let mut test_client =
1675 Command::new(self.config.remote_test_client.as_ref().unwrap());
1677 .args(&["run", &prog])
1680 self.compose_and_run(
1682 self.config.run_lib_path.to_str().unwrap(),
1683 Some(aux_dir.to_str().unwrap()),
1687 _ if self.config.target.contains("vxworks") => {
1688 let aux_dir = self.aux_output_dir_name();
1689 let ProcArgs { prog, args } = self.make_run_args();
1690 let mut wr_run = Command::new("wr-run");
1691 wr_run.args(&[&prog]).args(args).envs(env.clone());
1692 self.compose_and_run(
1694 self.config.run_lib_path.to_str().unwrap(),
1695 Some(aux_dir.to_str().unwrap()),
1700 let aux_dir = self.aux_output_dir_name();
1701 let ProcArgs { prog, args } = self.make_run_args();
1702 let mut program = Command::new(&prog);
1705 .current_dir(&self.output_base_dir())
1707 self.compose_and_run(
1709 self.config.run_lib_path.to_str().unwrap(),
1710 Some(aux_dir.to_str().unwrap()),
1716 if proc_res.status.success() {
1717 // delete the executable after running it to save space.
1718 // it is ok if the deletion failed.
1719 let _ = fs::remove_file(self.make_exe_name());
1725 /// For each `aux-build: foo/bar` annotation, we check to find the
1726 /// file in a `auxiliary` directory relative to the test itself.
1727 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1732 .expect("test file path has no parent")
1735 if !test_ab.exists() {
1736 self.fatal(&format!(
1737 "aux-build `{}` source not found",
1747 .join(self.output_testname_unique())
1751 .expect("aux-build path has no parent")
1756 fn is_vxworks_pure_static(&self) -> bool {
1757 if self.config.target.contains("vxworks") {
1758 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1767 fn is_vxworks_pure_dynamic(&self) -> bool {
1768 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1771 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1772 let aux_dir = self.aux_output_dir_name();
1774 if !self.props.aux_builds.is_empty() {
1775 let _ = fs::remove_dir_all(&aux_dir);
1776 create_dir_all(&aux_dir).unwrap();
1779 // Use a Vec instead of a HashMap to preserve original order
1780 let mut extern_priv = self.props.extern_private.clone();
1782 let mut add_extern_priv = |priv_dep: &str, dylib: bool| {
1783 let lib_name = get_lib_name(priv_dep, dylib);
1786 .arg(format!("priv:{}={}", priv_dep, aux_dir.join(lib_name).to_str().unwrap()));
1789 for rel_ab in &self.props.aux_builds {
1790 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1793 .from_aux_file(&aux_testpaths.file, self.revision, self.config);
1794 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1795 let aux_cx = TestCx {
1796 config: self.config,
1798 testpaths: &aux_testpaths,
1799 revision: self.revision,
1801 // Create the directory for the stdout/stderr files.
1802 create_dir_all(aux_cx.output_base_dir()).unwrap();
1803 let mut aux_rustc = aux_cx.make_compile_args(&aux_testpaths.file, aux_output);
1805 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1807 } else if self.config.target.contains("cloudabi")
1808 || self.config.target.contains("emscripten")
1809 || (self.config.target.contains("musl")
1810 && !aux_props.force_host
1811 && !self.config.host.contains("musl"))
1812 || self.config.target.contains("wasm32")
1813 || self.config.target.contains("nvptx")
1814 || self.is_vxworks_pure_static()
1816 // We primarily compile all auxiliary libraries as dynamic libraries
1817 // to avoid code size bloat and large binaries as much as possible
1818 // for the test suite (otherwise including libstd statically in all
1819 // executables takes up quite a bit of space).
1821 // For targets like MUSL or Emscripten, however, there is no support for
1822 // dynamic libraries so we just go back to building a normal library. Note,
1823 // however, that for MUSL if the library is built with `force_host` then
1824 // it's ok to be a dylib as the host should always support dylibs.
1825 (false, Some("lib"))
1827 (true, Some("dylib"))
1830 let trimmed = rel_ab.trim_end_matches(".rs").to_string();
1832 // Normally, every 'extern-private' has a corresponding 'aux-build'
1833 // entry. If so, we remove it from our list of private crates,
1834 // and add an '--extern priv:NAME=PATH' flag to rustc
1835 if extern_priv.remove_item(&trimmed).is_some() {
1836 add_extern_priv(&trimmed, dylib);
1839 if let Some(crate_type) = crate_type {
1840 aux_rustc.args(&["--crate-type", crate_type]);
1843 aux_rustc.arg("-L").arg(&aux_dir);
1845 let auxres = aux_cx.compose_and_run(
1847 aux_cx.config.compile_lib_path.to_str().unwrap(),
1848 Some(aux_dir.to_str().unwrap()),
1851 if !auxres.status.success() {
1852 self.fatal_proc_rec(
1854 "auxiliary build of {:?} failed to compile: ",
1855 aux_testpaths.file.display()
1862 // Add any '--extern' private entries without a matching
1864 for private_lib in extern_priv {
1865 add_extern_priv(&private_lib, true);
1868 self.props.unset_rustc_env.clone()
1870 .fold(&mut rustc, |rustc, v| rustc.env_remove(v));
1871 rustc.envs(self.props.rustc_env.clone());
1872 self.compose_and_run(
1874 self.config.compile_lib_path.to_str().unwrap(),
1875 Some(aux_dir.to_str().unwrap()),
1882 mut command: Command,
1884 aux_path: Option<&str>,
1885 input: Option<String>,
1888 let cmdline = self.make_cmdline(&command, lib_path);
1889 logv(self.config, format!("executing {}", cmdline));
1894 .stdout(Stdio::piped())
1895 .stderr(Stdio::piped())
1896 .stdin(Stdio::piped());
1898 // Need to be sure to put both the lib_path and the aux path in the dylib
1899 // search path for the child.
1900 let mut path = env::split_paths(&env::var_os(dylib_env_var()).unwrap_or(OsString::new()))
1901 .collect::<Vec<_>>();
1902 if let Some(p) = aux_path {
1903 path.insert(0, PathBuf::from(p))
1905 path.insert(0, PathBuf::from(lib_path));
1907 // Add the new dylib search path var
1908 let newpath = env::join_paths(&path).unwrap();
1909 command.env(dylib_env_var(), newpath);
1911 let mut child = disable_error_reporting(|| command.spawn())
1912 .expect(&format!("failed to exec `{:?}`", &command));
1913 if let Some(input) = input {
1918 .write_all(input.as_bytes())
1926 } = read2_abbreviated(child).expect("failed to read output");
1928 let result = ProcRes {
1930 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1931 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1935 self.dump_output(&result.stdout, &result.stderr);
1940 fn make_compile_args(
1943 output_file: TargetLocation,
1945 let is_rustdoc = self.config.src_base.ends_with("rustdoc-ui") ||
1946 self.config.src_base.ends_with("rustdoc-js");
1947 let mut rustc = if !is_rustdoc {
1948 Command::new(&self.config.rustc_path)
1955 .expect("no rustdoc built yet"),
1958 // FIXME Why is -L here?
1959 rustc.arg(input_file); //.arg("-L").arg(&self.config.build_base);
1961 // Use a single thread for efficiency and a deterministic error message order
1962 rustc.arg("-Zthreads=1");
1964 // Optionally prevent default --target if specified in test compile-flags.
1965 let custom_target = self
1969 .any(|x| x.starts_with("--target"));
1972 let target = if self.props.force_host {
1975 &*self.config.target
1978 rustc.arg(&format!("--target={}", target));
1980 self.set_revision_flags(&mut rustc);
1983 if let Some(ref incremental_dir) = self.props.incremental_dir {
1984 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1985 rustc.args(&["-Z", "incremental-verify-ich"]);
1986 rustc.args(&["-Z", "incremental-queries"]);
1989 if self.config.mode == CodegenUnits {
1990 rustc.args(&["-Z", "human_readable_cgu_names"]);
1994 match self.config.mode {
1995 CompileFail | Incremental => {
1996 // If we are extracting and matching errors in the new
1997 // fashion, then you want JSON mode. Old-skool error
1998 // patterns still match the raw compiler output.
1999 if self.props.error_patterns.is_empty() {
2000 rustc.args(&["--error-format", "json"]);
2002 if !self.props.disable_ui_testing_normalization {
2003 rustc.arg("-Zui-testing");
2011 .any(|s| s.starts_with("--error-format"))
2013 rustc.args(&["--error-format", "json"]);
2015 if !self.props.disable_ui_testing_normalization {
2016 rustc.arg("-Zui-testing");
2022 "-Zmir-opt-level=3",
2023 "-Zdump-mir-exclude-pass-number",
2026 let mir_dump_dir = self.get_mir_dump_dir();
2027 let _ = fs::remove_dir_all(&mir_dump_dir);
2028 create_dir_all(mir_dump_dir.as_path()).unwrap();
2029 let mut dir_opt = "-Zdump-mir-dir=".to_string();
2030 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
2031 debug!("dir_opt: {:?}", dir_opt);
2035 RunFail | RunPassValgrind | Pretty | DebugInfoCdb | DebugInfoGdbLldb | DebugInfoGdb
2036 | DebugInfoLldb | Codegen | Rustdoc | RunMake | CodegenUnits | JsDocTest | Assembly => {
2037 // do not use JSON output
2041 if let Some(PassMode::Check) = self.pass_mode() {
2042 rustc.args(&["--emit", "metadata"]);
2046 if self.config.target == "wasm32-unknown-unknown"
2047 || self.is_vxworks_pure_static() {
2048 // rustc.arg("-g"); // get any backtrace at all on errors
2049 } else if !self.props.no_prefer_dynamic {
2050 rustc.args(&["-C", "prefer-dynamic"]);
2055 TargetLocation::ThisFile(path) => {
2056 rustc.arg("-o").arg(path);
2058 TargetLocation::ThisDirectory(path) => {
2060 // `rustdoc` uses `-o` for the output directory.
2061 rustc.arg("-o").arg(path);
2063 rustc.arg("--out-dir").arg(path);
2068 match self.config.compare_mode {
2069 Some(CompareMode::Nll) => {
2070 rustc.args(&["-Zborrowck=mir"]);
2072 Some(CompareMode::Polonius) => {
2073 rustc.args(&["-Zpolonius", "-Zborrowck=mir"]);
2078 if self.props.force_host {
2079 self.maybe_add_external_args(&mut rustc,
2080 self.split_maybe_args(&self.config.host_rustcflags));
2082 self.maybe_add_external_args(&mut rustc,
2083 self.split_maybe_args(&self.config.target_rustcflags));
2085 if let Some(ref linker) = self.config.linker {
2086 rustc.arg(format!("-Clinker={}", linker));
2091 // Use dynamic musl for tests because static doesn't allow creating dylibs
2092 if self.config.host.contains("musl")
2093 || self.is_vxworks_pure_dynamic() {
2094 rustc.arg("-Ctarget-feature=-crt-static");
2097 rustc.args(&self.props.compile_flags);
2102 fn make_exe_name(&self) -> PathBuf {
2103 // Using a single letter here to keep the path length down for
2104 // Windows. Some test names get very long. rustc creates `rcgu`
2105 // files with the module name appended to it which can more than
2106 // double the length.
2107 let mut f = self.output_base_dir().join("a");
2108 // FIXME: This is using the host architecture exe suffix, not target!
2109 if self.config.target.contains("emscripten") {
2110 f = f.with_extra_extension("js");
2111 } else if self.config.target.contains("wasm32") {
2112 f = f.with_extra_extension("wasm");
2113 } else if !env::consts::EXE_SUFFIX.is_empty() {
2114 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2119 fn make_run_args(&self) -> ProcArgs {
2120 // If we've got another tool to run under (valgrind),
2121 // then split apart its command
2122 let mut args = self.split_maybe_args(&self.config.runtool);
2124 // If this is emscripten, then run tests under nodejs
2125 if self.config.target.contains("emscripten") {
2126 if let Some(ref p) = self.config.nodejs {
2127 args.push(p.clone());
2129 self.fatal("no NodeJS binary found (--nodejs)");
2131 // If this is otherwise wasm, then run tests under nodejs with our
2133 } else if self.config.target.contains("wasm32") {
2134 if let Some(ref p) = self.config.nodejs {
2135 args.push(p.clone());
2137 self.fatal("no NodeJS binary found (--nodejs)");
2140 let src = self.config.src_base
2141 .parent().unwrap() // chop off `ui`
2142 .parent().unwrap() // chop off `test`
2143 .parent().unwrap(); // chop off `src`
2144 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2147 let exe_file = self.make_exe_name();
2149 // FIXME (#9639): This needs to handle non-utf8 paths
2150 args.push(exe_file.to_str().unwrap().to_owned());
2152 // Add the arguments in the run_flags directive
2153 args.extend(self.split_maybe_args(&self.props.run_flags));
2155 let prog = args.remove(0);
2156 ProcArgs { prog, args }
2159 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2164 if s.chars().all(|c| c.is_whitespace()) {
2175 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2178 // Linux and mac don't require adjusting the library search path
2180 format!("{:?}", command)
2182 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2183 // for diagnostic purposes
2184 fn lib_path_cmd_prefix(path: &str) -> String {
2187 util::lib_path_env_var(),
2188 util::make_new_path(path)
2192 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2196 fn dump_output(&self, out: &str, err: &str) {
2197 let revision = if let Some(r) = self.revision {
2203 self.dump_output_file(out, &format!("{}out", revision));
2204 self.dump_output_file(err, &format!("{}err", revision));
2205 self.maybe_dump_to_stdout(out, err);
2208 fn dump_output_file(&self, out: &str, extension: &str) {
2209 let outfile = self.make_out_name(extension);
2210 fs::write(&outfile, out).unwrap();
2213 /// Creates a filename for output with the given extension.
2214 /// E.g., `/.../testname.revision.mode/testname.extension`.
2215 fn make_out_name(&self, extension: &str) -> PathBuf {
2216 self.output_base_name().with_extension(extension)
2219 /// Gets the directory where auxiliary files are written.
2220 /// E.g., `/.../testname.revision.mode/auxiliary/`.
2221 fn aux_output_dir_name(&self) -> PathBuf {
2222 self.output_base_dir()
2224 .with_extra_extension(self.config.mode.disambiguator())
2227 /// Generates a unique name for the test, such as `testname.revision.mode`.
2228 fn output_testname_unique(&self) -> PathBuf {
2229 output_testname_unique(self.config, self.testpaths, self.safe_revision())
2232 /// The revision, ignored for incremental compilation since it wants all revisions in
2233 /// the same directory.
2234 fn safe_revision(&self) -> Option<&str> {
2235 if self.config.mode == Incremental {
2242 /// Gets the absolute path to the directory where all output for the given
2243 /// test/revision should reside.
2244 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2245 fn output_base_dir(&self) -> PathBuf {
2246 output_base_dir(self.config, self.testpaths, self.safe_revision())
2249 /// Gets the absolute path to the base filename used as output for the given
2251 /// E.g., `/.../relative/testname.revision.mode/testname`.
2252 fn output_base_name(&self) -> PathBuf {
2253 output_base_name(self.config, self.testpaths, self.safe_revision())
2256 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2257 if self.config.verbose {
2258 println!("------{}------------------------------", "stdout");
2259 println!("{}", out);
2260 println!("------{}------------------------------", "stderr");
2261 println!("{}", err);
2262 println!("------------------------------------------");
2266 fn error(&self, err: &str) {
2267 match self.revision {
2268 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2269 None => println!("\nerror: {}", err),
2273 fn fatal(&self, err: &str) -> ! {
2275 error!("fatal error, panic: {:?}", err);
2276 panic!("fatal error");
2279 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2281 proc_res.fatal(None);
2284 // codegen tests (using FileCheck)
2286 fn compile_test_and_save_ir(&self) -> ProcRes {
2287 let aux_dir = self.aux_output_dir_name();
2289 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2290 let mut rustc = self.make_compile_args(&self.testpaths.file, output_file);
2291 rustc.arg("-L").arg(aux_dir).arg("--emit=llvm-ir");
2293 self.compose_and_run_compiler(rustc, None)
2296 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2297 // This works with both `--emit asm` (as default output name for the assembly)
2298 // and `ptx-linker` because the latter can write output at requested location.
2299 let output_path = self.output_base_name().with_extension("s");
2301 let output_file = TargetLocation::ThisFile(output_path.clone());
2302 let mut rustc = self.make_compile_args(&self.testpaths.file, output_file);
2304 rustc.arg("-L").arg(self.aux_output_dir_name());
2306 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2307 Some("emit-asm") => {
2308 rustc.arg("--emit=asm");
2311 Some("ptx-linker") => {
2312 // No extra flags needed.
2315 Some(_) => self.fatal("unknown 'assembly-output' header"),
2316 None => self.fatal("missing 'assembly-output' header"),
2319 (self.compose_and_run_compiler(rustc, None), output_path)
2322 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2323 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2325 .arg("--input-file")
2327 .arg(&self.testpaths.file);
2328 // It would be more appropriate to make most of the arguments configurable through
2329 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2332 // For now, though…
2333 if let Some(rev) = self.revision {
2334 let prefixes = format!("CHECK,{}", rev);
2335 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") {
2382 fn run_rustdoc_test(&self) {
2383 assert!(self.revision.is_none(), "revisions not relevant here");
2385 let out_dir = self.output_base_dir();
2386 let _ = fs::remove_dir_all(&out_dir);
2387 create_dir_all(&out_dir).unwrap();
2389 let proc_res = self.document(&out_dir);
2390 if !proc_res.status.success() {
2391 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2394 if self.props.check_test_line_numbers_match {
2395 self.check_rustdoc_test_option(proc_res);
2397 let root = self.config.find_rust_src_root().unwrap();
2398 let res = self.cmd2procres(
2399 Command::new(&self.config.docck_python)
2400 .arg(root.join("src/etc/htmldocck.py"))
2402 .arg(&self.testpaths.file),
2404 if !res.status.success() {
2405 self.fatal_proc_rec("htmldocck failed!", &res);
2410 fn get_lines<P: AsRef<Path>>(
2413 mut other_files: Option<&mut Vec<String>>,
2415 let content = fs::read_to_string(&path).unwrap();
2416 let mut ignore = false;
2420 .filter_map(|(line_nb, line)| {
2421 if (line.trim_start().starts_with("pub mod ")
2422 || line.trim_start().starts_with("mod "))
2423 && line.ends_with(';')
2425 if let Some(ref mut other_files) = other_files {
2426 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2430 let sline = line.split("///").last().unwrap_or("");
2431 let line = sline.trim_start();
2432 if line.starts_with("```") {
2448 fn check_rustdoc_test_option(&self, res: ProcRes) {
2449 let mut other_files = Vec::new();
2450 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2451 let cwd = env::current_dir().unwrap();
2456 .unwrap_or(&self.testpaths.file)
2459 .replace('\\', "/"),
2460 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2462 for other_file in other_files {
2463 let mut path = self.testpaths.file.clone();
2464 path.set_file_name(&format!("{}.rs", other_file));
2466 path.strip_prefix(&cwd)
2470 .replace('\\', "/"),
2471 self.get_lines(&path, None),
2479 .filter(|s| s.starts_with("test "))
2481 let tmp: Vec<&str> = s.split(" - ").collect();
2483 let path = tmp[0].rsplit("test ").next().unwrap();
2484 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2486 let mut iter = tmp[1].split("(line ");
2496 if let Ok(pos) = v.binary_search(&line) {
2499 self.fatal_proc_rec(
2500 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2508 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2510 for (entry, v) in &files {
2512 self.fatal_proc_rec(
2514 "Not found test at line{} \"{}\":{:?}",
2515 if v.len() > 1 { "s" } else { "" },
2526 fn run_codegen_units_test(&self) {
2527 assert!(self.revision.is_none(), "revisions not relevant here");
2529 let proc_res = self.compile_test();
2531 if !proc_res.status.success() {
2532 self.fatal_proc_rec("compilation failed!", &proc_res);
2535 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
2537 const PREFIX: &'static str = "MONO_ITEM ";
2538 const CGU_MARKER: &'static str = "@@";
2540 let actual: Vec<MonoItem> = proc_res
2543 .filter(|line| line.starts_with(PREFIX))
2544 .map(|line| str_to_mono_item(line, true))
2547 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2549 .map(|e| str_to_mono_item(&e.msg[..], false))
2552 let mut missing = Vec::new();
2553 let mut wrong_cgus = Vec::new();
2555 for expected_item in &expected {
2556 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2558 if let Some(actual_item) = actual_item_with_same_name {
2559 if !expected_item.codegen_units.is_empty() &&
2560 // Also check for codegen units
2561 expected_item.codegen_units != actual_item.codegen_units
2563 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2566 missing.push(expected_item.string.clone());
2570 let unexpected: Vec<_> = actual
2572 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2573 .map(|acgu| acgu.string.clone())
2576 if !missing.is_empty() {
2579 println!("\nThese items should have been contained but were not:\n");
2581 for item in &missing {
2582 println!("{}", item);
2588 if !unexpected.is_empty() {
2590 let mut sorted = unexpected.clone();
2595 println!("\nThese items were contained but should not have been:\n");
2597 for item in sorted {
2598 println!("{}", item);
2604 if !wrong_cgus.is_empty() {
2605 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2606 println!("\nThe following items were assigned to wrong codegen units:\n");
2608 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2609 println!("{}", expected_item.name);
2612 codegen_units_to_str(&expected_item.codegen_units)
2616 codegen_units_to_str(&actual_item.codegen_units)
2622 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2626 #[derive(Clone, Eq, PartialEq)]
2629 codegen_units: HashSet<String>,
2633 // [MONO_ITEM] name [@@ (cgu)+]
2634 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2635 let s = if s.starts_with(PREFIX) {
2636 (&s[PREFIX.len()..]).trim()
2641 let full_string = format!("{}{}", PREFIX, s);
2643 let parts: Vec<&str> = s
2646 .filter(|s| !s.is_empty())
2649 let name = parts[0].trim();
2651 let cgus = if parts.len() > 1 {
2652 let cgus_str = parts[1];
2657 .filter(|s| !s.is_empty())
2659 if cgu_has_crate_disambiguator {
2660 remove_crate_disambiguator_from_cgu(s)
2671 name: name.to_owned(),
2672 codegen_units: cgus,
2673 string: full_string,
2677 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2678 let mut cgus: Vec<_> = cgus.iter().collect();
2681 let mut string = String::new();
2683 string.push_str(&cgu[..]);
2684 string.push_str(" ");
2690 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2691 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2692 // remove all crate-disambiguators.
2693 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2695 static ref RE: Regex = Regex::new(
2696 r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?"
2700 let captures = RE.captures(cgu).unwrap_or_else(|| {
2701 panic!("invalid cgu name encountered: {}", cgu)
2704 let mut new_name = cgu.to_owned();
2706 if let Some(d2) = captures.name("d2") {
2707 new_name.replace_range(d2.start() .. d2.end(), "");
2710 let d1 = captures.name("d1").unwrap();
2711 new_name.replace_range(d1.start() .. d1.end(), "");
2717 fn init_incremental_test(&self) {
2718 // (See `run_incremental_test` for an overview of how incremental tests work.)
2720 // Before any of the revisions have executed, create the
2721 // incremental workproduct directory. Delete any old
2722 // incremental work products that may be there from prior
2724 let incremental_dir = self.incremental_dir();
2725 if incremental_dir.exists() {
2726 // Canonicalizing the path will convert it to the //?/ format
2727 // on Windows, which enables paths longer than 260 character
2728 let canonicalized = incremental_dir.canonicalize().unwrap();
2729 fs::remove_dir_all(canonicalized).unwrap();
2731 fs::create_dir_all(&incremental_dir).unwrap();
2733 if self.config.verbose {
2735 "init_incremental_test: incremental_dir={}",
2736 incremental_dir.display()
2741 fn run_incremental_test(&self) {
2742 // Basic plan for a test incremental/foo/bar.rs:
2743 // - load list of revisions rpass1, cfail2, rpass3
2744 // - each should begin with `rpass`, `cfail`, or `rfail`
2745 // - if `rpass`, expect compile and execution to succeed
2746 // - if `cfail`, expect compilation to fail
2747 // - if `rfail`, expect execution to fail
2748 // - create a directory build/foo/bar.incremental
2749 // - compile foo/bar.rs with -Z incremental=.../foo/bar.incremental and -C rpass1
2750 // - because name of revision starts with "rpass", expect success
2751 // - compile foo/bar.rs with -Z incremental=.../foo/bar.incremental and -C cfail2
2752 // - because name of revision starts with "cfail", expect an error
2753 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2754 // - compile foo/bar.rs with -Z incremental=.../foo/bar.incremental and -C rpass3
2755 // - because name of revision starts with "rpass", expect success
2756 // - execute build/foo/bar.exe and save output
2758 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2759 // to #[rustc_dirty] and clean tests I guess
2763 .expect("incremental tests require a list of revisions");
2765 // Incremental workproduct directory should have already been created.
2766 let incremental_dir = self.incremental_dir();
2768 incremental_dir.exists(),
2769 "init_incremental_test failed to create incremental dir"
2772 // Add an extra flag pointing at the incremental directory.
2773 let mut revision_props = self.props.clone();
2774 revision_props.incremental_dir = Some(incremental_dir);
2776 let revision_cx = TestCx {
2777 config: self.config,
2778 props: &revision_props,
2779 testpaths: self.testpaths,
2780 revision: self.revision,
2783 if self.config.verbose {
2785 "revision={:?} revision_props={:#?}",
2786 revision, revision_props
2790 if revision.starts_with("rpass") {
2791 if revision_cx.props.should_ice {
2792 revision_cx.fatal("can only use should-ice in cfail tests");
2794 revision_cx.run_rpass_test();
2795 } else if revision.starts_with("rfail") {
2796 if revision_cx.props.should_ice {
2797 revision_cx.fatal("can only use should-ice in cfail tests");
2799 revision_cx.run_rfail_test();
2800 } else if revision.starts_with("cfail") {
2801 revision_cx.run_cfail_test();
2803 revision_cx.fatal("revision name must begin with rpass, rfail, or cfail");
2807 /// Directory where incremental work products are stored.
2808 fn incremental_dir(&self) -> PathBuf {
2809 self.output_base_name().with_extension("inc")
2812 fn run_rmake_test(&self) {
2813 let cwd = env::current_dir().unwrap();
2823 let src_root = cwd.join(&src_root);
2825 let tmpdir = cwd.join(self.output_base_name());
2826 if tmpdir.exists() {
2827 self.aggressive_rm_rf(&tmpdir).unwrap();
2829 create_dir_all(&tmpdir).unwrap();
2831 let host = &self.config.host;
2832 let make = if host.contains("dragonfly")
2833 || host.contains("freebsd")
2834 || host.contains("netbsd")
2835 || host.contains("openbsd")
2842 let mut cmd = Command::new(make);
2843 cmd.current_dir(&self.testpaths.file)
2844 .stdout(Stdio::piped())
2845 .stderr(Stdio::piped())
2846 .env("TARGET", &self.config.target)
2847 .env("PYTHON", &self.config.docck_python)
2849 .env("RUST_BUILD_STAGE", &self.config.stage_id)
2850 .env("RUSTC", cwd.join(&self.config.rustc_path))
2851 .env("TMPDIR", &tmpdir)
2852 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
2853 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
2854 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
2855 .env("LLVM_COMPONENTS", &self.config.llvm_components)
2856 .env("LLVM_CXXFLAGS", &self.config.llvm_cxxflags)
2858 // We for sure don't want these tests to run in parallel, so make
2859 // sure they don't have access to these vars if we run via `make`
2861 .env_remove("MAKEFLAGS")
2862 .env_remove("MFLAGS")
2863 .env_remove("CARGO_MAKEFLAGS");
2865 if let Some(ref rustdoc) = self.config.rustdoc_path {
2866 cmd.env("RUSTDOC", cwd.join(rustdoc));
2869 if let Some(ref node) = self.config.nodejs {
2870 cmd.env("NODE", node);
2873 if let Some(ref linker) = self.config.linker {
2874 cmd.env("RUSTC_LINKER", linker);
2877 if let Some(ref clang) = self.config.run_clang_based_tests_with {
2878 cmd.env("CLANG", clang);
2881 if let Some(ref filecheck) = self.config.llvm_filecheck {
2882 cmd.env("LLVM_FILECHECK", filecheck);
2885 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
2886 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
2889 // We don't want RUSTFLAGS set from the outside to interfere with
2890 // compiler flags set in the test cases:
2891 cmd.env_remove("RUSTFLAGS");
2893 // Use dynamic musl for tests because static doesn't allow creating dylibs
2894 if self.config.host.contains("musl") {
2895 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static")
2896 .env("IS_MUSL_HOST", "1");
2899 if self.config.target.contains("msvc") && self.config.cc != "" {
2900 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
2901 // and that `lib.exe` lives next to it.
2902 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
2904 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
2905 // a path and instead passes `C:\msys64\foo`, so convert all
2906 // `/`-arguments to MSVC here to `-` arguments.
2911 .map(|s| s.replace("/", "-"))
2912 .collect::<Vec<_>>()
2915 cmd.env("IS_MSVC", "1")
2916 .env("IS_WINDOWS", "1")
2917 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
2918 .env("CC", format!("'{}' {}", self.config.cc, cflags))
2919 .env("CXX", format!("'{}'", &self.config.cxx));
2921 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
2922 .env("CXX", format!("{} {}", self.config.cxx, self.config.cflags))
2923 .env("AR", &self.config.ar);
2925 if self.config.target.contains("windows") {
2926 cmd.env("IS_WINDOWS", "1");
2932 .and_then(read2_abbreviated)
2933 .expect("failed to spawn `make`");
2934 if !output.status.success() {
2936 status: output.status,
2937 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
2938 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
2939 cmdline: format!("{:?}", cmd),
2941 self.fatal_proc_rec("make failed", &res);
2945 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
2946 for e in path.read_dir()? {
2948 let path = entry.path();
2949 if entry.file_type()?.is_dir() {
2950 self.aggressive_rm_rf(&path)?;
2952 // Remove readonly files as well on windows (by default we can't)
2953 fs::remove_file(&path).or_else(|e| {
2954 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
2955 let mut meta = entry.metadata()?.permissions();
2956 meta.set_readonly(false);
2957 fs::set_permissions(&path, meta)?;
2958 fs::remove_file(&path)
2965 fs::remove_dir(path)
2968 fn run_js_doc_test(&self) {
2969 if let Some(nodejs) = &self.config.nodejs {
2970 let out_dir = self.output_base_dir();
2972 self.document(&out_dir);
2974 let root = self.config.find_rust_src_root().unwrap();
2975 let res = self.cmd2procres(
2976 Command::new(&nodejs)
2977 .arg(root.join("src/tools/rustdoc-js/tester.js"))
2978 .arg(out_dir.parent().expect("no parent"))
2979 .arg(&self.testpaths.file.file_stem().expect("couldn't get file stem")),
2981 if !res.status.success() {
2982 self.fatal_proc_rec("rustdoc-js test failed!", &res);
2985 self.fatal("no nodeJS");
2989 fn load_compare_outputs(&self, proc_res: &ProcRes,
2990 output_kind: TestOutput, explicit_format: bool) -> usize {
2992 let (stderr_kind, stdout_kind) = match output_kind {
2993 TestOutput::Compile => (UI_STDERR, UI_STDOUT),
2994 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT)
2997 let expected_stderr = self.load_expected_output(stderr_kind);
2998 let expected_stdout = self.load_expected_output(stdout_kind);
3000 let normalized_stdout = match output_kind {
3001 TestOutput::Run if self.config.remote_test_client.is_some() => {
3002 // When tests are run using the remote-test-client, the string
3003 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
3004 // is printed to stdout by the client and then captured in the ProcRes,
3005 // so it needs to be removed when comparing the run-pass test execution output
3007 static ref REMOTE_TEST_RE: Regex = Regex::new(
3008 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-]+)+\", waiting for result\n"
3011 REMOTE_TEST_RE.replace(
3012 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3016 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout)
3019 let stderr = if explicit_format {
3020 proc_res.stderr.clone()
3022 json::extract_rendered(&proc_res.stderr)
3025 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3028 TestOutput::Compile => {
3029 if !self.props.dont_check_compiler_stdout {
3030 errors += self.compare_output("stdout", &normalized_stdout, &expected_stdout);
3032 if !self.props.dont_check_compiler_stderr {
3033 errors += self.compare_output("stderr", &normalized_stderr, &expected_stderr);
3036 TestOutput::Run => {
3037 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3038 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3044 fn run_ui_test(&self) {
3045 // if the user specified a format in the ui test
3046 // print the output to the stderr file, otherwise extract
3047 // the rendered error messages from json and print them
3052 .any(|s| s.contains("--error-format"));
3053 let proc_res = self.compile_test();
3054 self.check_if_test_should_compile(&proc_res);
3056 let expected_fixed = self.load_expected_output(UI_FIXED);
3058 let modes_to_prune = vec![CompareMode::Nll];
3059 self.prune_duplicate_outputs(&modes_to_prune);
3061 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3063 if self.config.compare_mode.is_some() {
3064 // don't test rustfix with nll right now
3065 } else if self.config.rustfix_coverage {
3066 // Find out which tests have `MachineApplicable` suggestions but are missing
3067 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3069 // This will return an empty `Vec` in case the executed test file has a
3070 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3071 let suggestions = get_suggestions_from_json(
3074 Filter::MachineApplicableOnly
3075 ).unwrap_or_default();
3076 if suggestions.len() > 0
3077 && !self.props.run_rustfix
3078 && !self.props.rustfix_only_machine_applicable {
3079 let mut coverage_file_path = self.config.build_base.clone();
3080 coverage_file_path.push("rustfix_missing_coverage.txt");
3081 debug!("coverage_file_path: {}", coverage_file_path.display());
3083 let mut file = OpenOptions::new()
3086 .open(coverage_file_path.as_path())
3087 .expect("could not create or open file");
3089 if let Err(_) = writeln!(file, "{}", self.testpaths.file.display()) {
3090 panic!("couldn't write to {}", coverage_file_path.display());
3093 } else if self.props.run_rustfix {
3094 // Apply suggestions from rustc to the code itself
3095 let unfixed_code = self
3096 .load_expected_output_from_path(&self.testpaths.file)
3098 let suggestions = get_suggestions_from_json(
3101 if self.props.rustfix_only_machine_applicable {
3102 Filter::MachineApplicableOnly
3107 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).expect(&format!(
3108 "failed to apply suggestions for {:?} with rustfix",
3112 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3113 } else if !expected_fixed.is_empty() {
3115 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3121 println!("To update references, rerun the tests and pass the `--bless` flag");
3122 let relative_path_to_file = self
3125 .join(self.testpaths.file.file_name().unwrap());
3127 "To only update this specific test, also pass `--test-args {}`",
3128 relative_path_to_file.display(),
3130 self.fatal_proc_rec(
3131 &format!("{} errors occurred comparing output.", errors),
3136 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3138 if self.should_run() {
3139 let proc_res = self.exec_compiled_test();
3140 let run_output_errors = if self.props.check_run_results {
3141 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3145 if run_output_errors > 0 {
3146 self.fatal_proc_rec(
3147 &format!("{} errors occured comparing run output.", run_output_errors),
3151 if self.should_run_successfully() {
3152 if !proc_res.status.success() {
3153 self.fatal_proc_rec("test run failed!", &proc_res);
3156 if proc_res.status.success() {
3157 self.fatal_proc_rec("test run succeeded!", &proc_res);
3160 if !self.props.error_patterns.is_empty() {
3161 // "// error-pattern" comments
3162 self.check_error_patterns(&proc_res.stderr, &proc_res);
3166 debug!("run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3167 proc_res.status={:?} props.error_patterns={:?}",
3168 explicit, self.config.compare_mode, expected_errors, proc_res.status,
3169 self.props.error_patterns);
3170 if !explicit && self.config.compare_mode.is_none() {
3171 let check_patterns =
3172 !self.should_run() &&
3173 !self.props.error_patterns.is_empty();
3175 let check_annotations =
3177 !expected_errors.is_empty();
3180 // "// error-pattern" comments
3181 self.check_error_patterns(&proc_res.stderr, &proc_res);
3184 if check_annotations {
3185 // "//~ERROR comments"
3186 self.check_expected_errors(expected_errors, &proc_res);
3190 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3191 // And finally, compile the fixed code and make sure it both
3192 // succeeds and has no diagnostics.
3193 let mut rustc = self.make_compile_args(
3194 &self.testpaths.file.with_extension(UI_FIXED),
3195 TargetLocation::ThisFile(self.make_exe_name()),
3197 rustc.arg("-L").arg(&self.aux_output_dir_name());
3198 let res = self.compose_and_run_compiler(rustc, None);
3199 if !res.status.success() {
3200 self.fatal_proc_rec("failed to compile fixed code", &res);
3202 if !res.stderr.is_empty() && !self.props.rustfix_only_machine_applicable {
3203 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3208 fn run_mir_opt_test(&self) {
3209 let proc_res = self.compile_test();
3211 if !proc_res.status.success() {
3212 self.fatal_proc_rec("compilation failed!", &proc_res);
3215 let proc_res = self.exec_compiled_test();
3217 if !proc_res.status.success() {
3218 self.fatal_proc_rec("test run failed!", &proc_res);
3220 self.check_mir_dump();
3223 fn check_mir_dump(&self) {
3224 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3225 if let Some(idx) = test_file_contents.find("// END RUST SOURCE") {
3226 let (_, tests_text) = test_file_contents.split_at(idx + "// END_RUST SOURCE".len());
3227 let tests_text_str = String::from(tests_text);
3228 let mut curr_test: Option<&str> = None;
3229 let mut curr_test_contents = vec![ExpectedLine::Elision];
3230 for l in tests_text_str.lines() {
3231 debug!("line: {:?}", l);
3232 if l.starts_with("// START ") {
3233 let (_, t) = l.split_at("// START ".len());
3234 curr_test = Some(t);
3235 } else if l.starts_with("// END") {
3236 let (_, t) = l.split_at("// END ".len());
3237 if Some(t) != curr_test {
3238 panic!("mismatched START END test name");
3240 self.compare_mir_test_output(curr_test.unwrap(), &curr_test_contents);
3242 curr_test_contents.clear();
3243 curr_test_contents.push(ExpectedLine::Elision);
3244 } else if l.is_empty() {
3246 } else if l.starts_with("//") && l.split_at("//".len()).1.trim() == "..." {
3247 curr_test_contents.push(ExpectedLine::Elision)
3248 } else if l.starts_with("// ") {
3249 let (_, test_content) = l.split_at("// ".len());
3250 curr_test_contents.push(ExpectedLine::Text(test_content));
3256 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3257 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3258 let source_file = &self.testpaths.file;
3259 let output_time = t(output_file);
3260 let source_time = t(source_file);
3261 if source_time > output_time {
3263 "source file time: {:?} output file time: {:?}",
3264 source_time, output_time
3267 "test source file `{}` is newer than potentially stale output file `{}`.",
3268 source_file.display(),
3274 fn compare_mir_test_output(&self, test_name: &str, expected_content: &[ExpectedLine<&str>]) {
3275 let mut output_file = PathBuf::new();
3276 output_file.push(self.get_mir_dump_dir());
3277 output_file.push(test_name);
3278 debug!("comparing the contests of: {:?}", output_file);
3279 debug!("with: {:?}", expected_content);
3280 if !output_file.exists() {
3282 "Output file `{}` from test does not exist",
3283 output_file.into_os_string().to_string_lossy()
3286 self.check_mir_test_timestamp(test_name, &output_file);
3288 let dumped_string = fs::read_to_string(&output_file).unwrap();
3289 let mut dumped_lines = dumped_string
3291 .map(|l| nocomment_mir_line(l))
3292 .filter(|l| !l.is_empty());
3293 let mut expected_lines = expected_content
3296 if let &ExpectedLine::Text(l) = l {
3304 let compare = |expected_line, dumped_line| {
3305 let e_norm = normalize_mir_line(expected_line);
3306 let d_norm = normalize_mir_line(dumped_line);
3307 debug!("found: {:?}", d_norm);
3308 debug!("expected: {:?}", e_norm);
3312 let error = |expected_line, extra_msg| {
3313 let normalize_all = dumped_string
3315 .map(nocomment_mir_line)
3316 .filter(|l| !l.is_empty())
3317 .collect::<Vec<_>>()
3319 let f = |l: &ExpectedLine<_>| match l {
3320 &ExpectedLine::Elision => "... (elided)".into(),
3321 &ExpectedLine::Text(t) => t,
3323 let expected_content = expected_content
3326 .collect::<Vec<_>>()
3329 "Did not find expected line, error: {}\n\
3330 Expected Line: {:?}\n\
3334 extra_msg, expected_line, test_name, expected_content, normalize_all
3338 // We expect each non-empty line to appear consecutively, non-consecutive lines
3339 // must be separated by at least one Elision
3340 let mut start_block_line = None;
3341 while let Some(dumped_line) = dumped_lines.next() {
3342 match expected_lines.next() {
3343 Some(&ExpectedLine::Text(expected_line)) => {
3344 let normalized_expected_line = normalize_mir_line(expected_line);
3345 if normalized_expected_line.contains(":{") {
3346 start_block_line = Some(expected_line);
3349 if !compare(expected_line, dumped_line) {
3350 error!("{:?}", start_block_line);
3354 "Mismatch in lines\n\
3355 Current block: {}\n\
3357 start_block_line.unwrap_or("None"),
3363 Some(&ExpectedLine::Elision) => {
3364 // skip any number of elisions in a row.
3365 while let Some(&&ExpectedLine::Elision) = expected_lines.peek() {
3366 expected_lines.next();
3368 if let Some(&ExpectedLine::Text(expected_line)) = expected_lines.next() {
3369 let mut found = compare(expected_line, dumped_line);
3373 while let Some(dumped_line) = dumped_lines.next() {
3374 found = compare(expected_line, dumped_line);
3380 error(expected_line, "ran out of mir dump to match against".into());
3389 fn get_mir_dump_dir(&self) -> PathBuf {
3390 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3391 debug!("input_file: {:?}", self.testpaths.file);
3392 mir_dump_dir.push(&self.testpaths.relative_dir);
3393 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3397 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3398 let cflags = self.props.compile_flags.join(" ");
3399 let json = cflags.contains("--error-format json")
3400 || cflags.contains("--error-format pretty-json")
3401 || cflags.contains("--error-format=json")
3402 || cflags.contains("--error-format=pretty-json");
3404 let mut normalized = output.to_string();
3406 let mut normalize_path = |from: &Path, to: &str| {
3407 let mut from = from.display().to_string();
3409 from = from.replace("\\", "\\\\");
3411 normalized = normalized.replace(&from, to);
3414 let parent_dir = self.testpaths.file.parent().unwrap();
3415 normalize_path(parent_dir, "$DIR");
3417 // Paths into the libstd/libcore
3418 let src_dir = self.config.src_base.parent().unwrap().parent().unwrap();
3419 normalize_path(src_dir, "$SRC_DIR");
3421 // Paths into the build directory
3422 let test_build_dir = &self.config.build_base;
3423 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3425 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3426 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3427 // eg. /home/user/rust/build
3428 normalize_path(parent_build_dir, "$BUILD_DIR");
3430 // Paths into lib directory.
3431 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3434 // escaped newlines in json strings should be readable
3435 // in the stderr files. There's no point int being correct,
3436 // since only humans process the stderr files.
3437 // Thus we just turn escaped newlines back into newlines.
3438 normalized = normalized.replace("\\n", "\n");
3441 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3442 // with placeholders as we do not want tests needing updated when compiler source code
3444 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3445 normalized = Regex::new("SRC_DIR(.+):\\d+:\\d+").unwrap()
3446 .replace_all(&normalized, "SRC_DIR$1:LL:COL").into_owned();
3448 normalized = Self::normalize_platform_differences(&normalized);
3449 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3451 // Remove test annotations like `//~ ERROR text` from the output,
3452 // since they duplicate actual errors and make the output hard to read.
3453 normalized = Regex::new("\\s*//(\\[.*\\])?~.*").unwrap()
3454 .replace_all(&normalized, "").into_owned();
3456 for rule in custom_rules {
3457 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3458 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3463 /// Normalize output differences across platforms. Generally changes Windows output to be more
3466 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3468 fn normalize_platform_differences(output: &str) -> String {
3470 /// Used to find Windows paths.
3472 /// It's not possible to detect paths in the error messages generally, but this is a
3473 /// decent enough heuristic.
3474 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3476 # Match paths that don't include spaces.
3477 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3479 # If the path starts with a well-known root, then allow spaces.
3480 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3485 let output = output.replace(r"\\", r"\");
3487 PATH_BACKSLASH_RE.replace_all(&output, |caps: &Captures<'_>| {
3488 println!("{}", &caps[0]);
3489 caps[0].replace(r"\", "/")
3490 }).replace("\r\n", "\n")
3493 fn expected_output_path(&self, kind: &str) -> PathBuf {
3494 let mut path = expected_output_path(
3497 &self.config.compare_mode,
3502 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3503 path = expected_output_path(
3506 &Some(CompareMode::Nll),
3513 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3519 fn load_expected_output(&self, kind: &str) -> String {
3520 let path = self.expected_output_path(kind);
3522 match self.load_expected_output_from_path(&path) {
3524 Err(x) => self.fatal(&x),
3531 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3532 fs::read_to_string(path).map_err(|err| {
3533 format!("failed to load expected output from `{}`: {}", path.display(), err)
3537 fn delete_file(&self, file: &PathBuf) {
3538 if let Err(e) = fs::remove_file(file) {
3539 self.fatal(&format!(
3540 "failed to delete `{}`: {}",
3547 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3548 if actual == expected {
3552 if !self.config.bless {
3553 if expected.is_empty() {
3554 println!("normalized {}:\n{}\n", kind, actual);
3556 println!("diff of {}:\n", kind);
3557 let diff_results = make_diff(expected, actual, 3);
3558 for result in diff_results {
3559 let mut line_number = result.line_number;
3560 for line in result.lines {
3562 DiffLine::Expected(e) => {
3563 println!("-\t{}", e);
3566 DiffLine::Context(c) => {
3567 println!("{}\t{}", line_number, c);
3570 DiffLine::Resulting(r) => {
3571 println!("+\t{}", r);
3580 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3581 let output_file = self
3583 .with_extra_extension(self.revision.unwrap_or(""))
3584 .with_extra_extension(mode)
3585 .with_extra_extension(kind);
3587 let mut files = vec![output_file];
3588 if self.config.bless {
3589 files.push(expected_output_path(
3592 &self.config.compare_mode,
3597 for output_file in &files {
3598 if actual.is_empty() {
3599 self.delete_file(output_file);
3600 } else if let Err(err) = fs::write(&output_file, &actual) {
3601 self.fatal(&format!(
3602 "failed to write {} to `{}`: {}",
3604 output_file.display(),
3610 println!("\nThe actual {0} differed from the expected {0}.", kind);
3611 for output_file in files {
3612 println!("Actual {} saved to {}", kind, output_file.display());
3614 if self.config.bless {
3621 fn prune_duplicate_output(&self, mode: CompareMode, kind: &str, canon_content: &str) {
3622 let examined_path = expected_output_path(
3629 let examined_content = self
3630 .load_expected_output_from_path(&examined_path)
3631 .unwrap_or_else(|_| String::new());
3633 if examined_path.exists() && canon_content == &examined_content {
3634 self.delete_file(&examined_path);
3638 fn prune_duplicate_outputs(&self, modes: &[CompareMode]) {
3639 if self.config.bless {
3640 for kind in UI_EXTENSIONS {
3641 let canon_comparison_path = expected_output_path(
3648 if let Ok(canon) = self.load_expected_output_from_path(&canon_comparison_path) {
3650 self.prune_duplicate_output(mode.clone(), kind, &canon);
3657 fn create_stamp(&self) {
3658 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3659 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3668 pub struct ProcRes {
3676 pub fn fatal(&self, err: Option<&str>) -> ! {
3677 if let Some(e) = err {
3678 println!("\nerror: {}", e);
3685 ------------------------------------------\n\
3687 ------------------------------------------\n\
3689 ------------------------------------------\n\
3691 ------------------------------------------\n\
3693 self.status, self.cmdline,
3694 json::extract_rendered(&self.stdout),
3695 json::extract_rendered(&self.stderr),
3697 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3698 // compiletest, which is unnecessary noise.
3699 std::panic::resume_unwind(Box::new(()));
3703 enum TargetLocation {
3705 ThisDirectory(PathBuf),
3708 #[derive(Clone, PartialEq, Eq)]
3709 enum ExpectedLine<T: AsRef<str>> {
3714 impl<T> fmt::Debug for ExpectedLine<T>
3716 T: AsRef<str> + fmt::Debug,
3718 fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
3719 if let &ExpectedLine::Text(ref t) = self {
3720 write!(formatter, "{:?}", t)
3722 write!(formatter, "\"...\" (Elision)")
3727 fn normalize_mir_line(line: &str) -> String {
3728 nocomment_mir_line(line).replace(char::is_whitespace, "")
3731 fn nocomment_mir_line(line: &str) -> &str {
3732 if let Some(idx) = line.find("//") {
3733 let (l, _) = line.split_at(idx);
3740 fn read2_abbreviated(mut child: Child) -> io::Result<Output> {
3741 use crate::read2::read2;
3742 use std::mem::replace;
3744 const HEAD_LEN: usize = 160 * 1024;
3745 const TAIL_LEN: usize = 256 * 1024;
3757 fn extend(&mut self, data: &[u8]) {
3758 let new_self = match *self {
3759 ProcOutput::Full(ref mut bytes) => {
3760 bytes.extend_from_slice(data);
3761 let new_len = bytes.len();
3762 if new_len <= HEAD_LEN + TAIL_LEN {
3765 let tail = bytes.split_off(new_len - TAIL_LEN).into_boxed_slice();
3766 let head = replace(bytes, Vec::new());
3767 let skipped = new_len - HEAD_LEN - TAIL_LEN;
3768 ProcOutput::Abbreviated {
3774 ProcOutput::Abbreviated {
3779 *skipped += data.len();
3780 if data.len() <= TAIL_LEN {
3781 tail[..data.len()].copy_from_slice(data);
3782 tail.rotate_left(data.len());
3784 tail.copy_from_slice(&data[(data.len() - TAIL_LEN)..]);
3792 fn into_bytes(self) -> Vec<u8> {
3794 ProcOutput::Full(bytes) => bytes,
3795 ProcOutput::Abbreviated {
3800 write!(&mut head, "\n\n<<<<<< SKIPPED {} BYTES >>>>>>\n\n", skipped).unwrap();
3801 head.extend_from_slice(&tail);
3808 let mut stdout = ProcOutput::Full(Vec::new());
3809 let mut stderr = ProcOutput::Full(Vec::new());
3811 drop(child.stdin.take());
3813 child.stdout.take().unwrap(),
3814 child.stderr.take().unwrap(),
3815 &mut |is_stdout, data, _| {
3816 if is_stdout { &mut stdout } else { &mut stderr }.extend(data);
3820 let status = child.wait()?;
3824 stdout: stdout.into_bytes(),
3825 stderr: stderr.into_bytes(),