1 // ignore-tidy-filelength
3 use crate::common::{expected_output_path, UI_EXTENSIONS, UI_FIXED, UI_STDERR, UI_STDOUT};
4 use crate::common::{output_base_dir, output_base_name, output_testname_unique};
5 use crate::common::{Assembly, Incremental, JsDocTest, MirOpt, RunMake, RustdocJson, Ui};
6 use crate::common::{Codegen, CodegenUnits, DebugInfo, Debugger, Rustdoc};
7 use crate::common::{CompareMode, FailMode, PassMode};
8 use crate::common::{Config, TestPaths};
9 use crate::common::{Pretty, RunPassValgrind};
10 use crate::common::{UI_RUN_STDERR, UI_RUN_STDOUT};
11 use crate::errors::{self, Error, ErrorKind};
12 use crate::header::TestProps;
14 use crate::util::get_pointer_width;
15 use crate::util::{logv, PathBufExt};
16 use crate::ColorConfig;
17 use regex::{Captures, Regex};
18 use rustfix::{apply_suggestions, get_suggestions_from_json, Filter};
20 use std::collections::hash_map::DefaultHasher;
21 use std::collections::{HashMap, HashSet, VecDeque};
23 use std::ffi::{OsStr, OsString};
24 use std::fs::{self, create_dir_all, File, OpenOptions};
25 use std::hash::{Hash, Hasher};
26 use std::io::prelude::*;
27 use std::io::{self, BufReader};
28 use std::path::{Path, PathBuf};
29 use std::process::{Child, Command, ExitStatus, Output, Stdio};
33 use lazy_static::lazy_static;
36 use crate::extract_gdb_version;
37 use crate::is_android_gdb_target;
43 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
45 use winapi::um::errhandlingapi::SetErrorMode;
46 use winapi::um::winbase::SEM_NOGPFAULTERRORBOX;
49 static ref LOCK: Mutex<()> = Mutex::new(());
51 // Error mode is a global variable, so lock it so only one thread will change it
52 let _lock = LOCK.lock().unwrap();
54 // Tell Windows to not show any UI on errors (such as terminating abnormally).
55 // This is important for running tests, since some of them use abnormal
56 // termination by design. This mode is inherited by all child processes.
58 let old_mode = SetErrorMode(SEM_NOGPFAULTERRORBOX); // read inherited flags
59 SetErrorMode(old_mode | SEM_NOGPFAULTERRORBOX);
61 SetErrorMode(old_mode);
67 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
71 /// The name of the environment variable that holds dynamic library locations.
72 pub fn dylib_env_var() -> &'static str {
75 } else if cfg!(target_os = "macos") {
77 } else if cfg!(target_os = "haiku") {
84 /// The platform-specific library name
85 pub fn get_lib_name(lib: &str, dylib: bool) -> String {
86 // In some casess (e.g. MUSL), we build a static
87 // library, rather than a dynamic library.
88 // In this case, the only path we can pass
89 // with '--extern-meta' is the '.lib' file
91 return format!("lib{}.rlib", lib);
95 format!("{}.dll", lib)
96 } else if cfg!(target_os = "macos") {
97 format!("lib{}.dylib", lib)
99 format!("lib{}.so", lib)
103 #[derive(Debug, PartialEq)]
110 #[derive(Debug, PartialEq)]
111 pub struct Mismatch {
112 pub line_number: u32,
113 pub lines: Vec<DiffLine>,
117 fn new(line_number: u32) -> Mismatch {
118 Mismatch { line_number, lines: Vec::new() }
122 // Produces a diff between the expected output and actual output.
123 pub fn make_diff(expected: &str, actual: &str, context_size: usize) -> Vec<Mismatch> {
124 let mut line_number = 1;
125 let mut context_queue: VecDeque<&str> = VecDeque::with_capacity(context_size);
126 let mut lines_since_mismatch = context_size + 1;
127 let mut results = Vec::new();
128 let mut mismatch = Mismatch::new(0);
130 for result in diff::lines(expected, actual) {
132 diff::Result::Left(str) => {
133 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
134 results.push(mismatch);
135 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
138 while let Some(line) = context_queue.pop_front() {
139 mismatch.lines.push(DiffLine::Context(line.to_owned()));
142 mismatch.lines.push(DiffLine::Expected(str.to_owned()));
144 lines_since_mismatch = 0;
146 diff::Result::Right(str) => {
147 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
148 results.push(mismatch);
149 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
152 while let Some(line) = context_queue.pop_front() {
153 mismatch.lines.push(DiffLine::Context(line.to_owned()));
156 mismatch.lines.push(DiffLine::Resulting(str.to_owned()));
157 lines_since_mismatch = 0;
159 diff::Result::Both(str, _) => {
160 if context_queue.len() >= context_size {
161 let _ = context_queue.pop_front();
164 if lines_since_mismatch < context_size {
165 mismatch.lines.push(DiffLine::Context(str.to_owned()));
166 } else if context_size > 0 {
167 context_queue.push_back(str);
171 lines_since_mismatch += 1;
176 results.push(mismatch);
182 fn write_diff(expected: &str, actual: &str, context_size: usize) -> String {
184 let mut output = String::new();
185 let diff_results = make_diff(expected, actual, context_size);
186 for result in diff_results {
187 let mut line_number = result.line_number;
188 for line in result.lines {
190 DiffLine::Expected(e) => {
191 writeln!(output, "-\t{}", e).unwrap();
194 DiffLine::Context(c) => {
195 writeln!(output, "{}\t{}", line_number, c).unwrap();
198 DiffLine::Resulting(r) => {
199 writeln!(output, "+\t{}", r).unwrap();
203 writeln!(output).unwrap();
208 pub fn run(config: Config, testpaths: &TestPaths, revision: Option<&str>) {
209 match &*config.target {
210 "arm-linux-androideabi"
211 | "armv7-linux-androideabi"
212 | "thumbv7neon-linux-androideabi"
213 | "aarch64-linux-android" => {
214 if !config.adb_device_status {
215 panic!("android device not available");
220 // android has its own gdb handling
221 if config.debugger == Some(Debugger::Gdb) && config.gdb.is_none() {
222 panic!("gdb not available but debuginfo gdb debuginfo test requested");
228 // We're going to be dumping a lot of info. Start on a new line.
231 debug!("running {:?}", testpaths.file.display());
232 let props = TestProps::from_file(&testpaths.file, revision, &config);
234 let cx = TestCx { config: &config, props: &props, testpaths, revision };
235 create_dir_all(&cx.output_base_dir()).unwrap();
237 if config.mode == Incremental {
238 // Incremental tests are special because they cannot be run in
240 assert!(!props.revisions.is_empty(), "Incremental tests require revisions.");
241 cx.init_incremental_test();
242 for revision in &props.revisions {
243 let revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
244 let rev_cx = TestCx {
246 props: &revision_props,
248 revision: Some(revision),
250 rev_cx.run_revision();
259 pub fn compute_stamp_hash(config: &Config) -> String {
260 let mut hash = DefaultHasher::new();
261 config.stage_id.hash(&mut hash);
262 config.run.hash(&mut hash);
264 match config.debugger {
265 Some(Debugger::Cdb) => {
266 config.cdb.hash(&mut hash);
269 Some(Debugger::Gdb) => {
270 config.gdb.hash(&mut hash);
271 env::var_os("PATH").hash(&mut hash);
272 env::var_os("PYTHONPATH").hash(&mut hash);
275 Some(Debugger::Lldb) => {
276 config.lldb_python.hash(&mut hash);
277 config.lldb_python_dir.hash(&mut hash);
278 env::var_os("PATH").hash(&mut hash);
279 env::var_os("PYTHONPATH").hash(&mut hash);
285 if let Ui = config.mode {
286 config.force_pass_mode.hash(&mut hash);
289 format!("{:x}", hash.finish())
292 #[derive(Copy, Clone)]
293 struct TestCx<'test> {
294 config: &'test Config,
295 props: &'test TestProps,
296 testpaths: &'test TestPaths,
297 revision: Option<&'test str>,
300 struct DebuggerCommands {
301 commands: Vec<String>,
302 check_lines: Vec<String>,
303 breakpoint_lines: Vec<usize>,
316 /// Will this test be executed? Should we use `make_exe_name`?
317 #[derive(Copy, Clone, PartialEq)]
324 /// Should `--emit metadata` be used?
325 #[derive(Copy, Clone)]
331 impl<'test> TestCx<'test> {
332 /// Code executed for each revision in turn (or, if there are no
333 /// revisions, exactly once, with revision == None).
334 fn run_revision(&self) {
335 if self.props.should_ice {
336 if self.config.mode != Incremental {
337 self.fatal("cannot use should-ice in a test that is not cfail");
340 match self.config.mode {
341 RunPassValgrind => self.run_valgrind_test(),
342 Pretty => self.run_pretty_test(),
343 DebugInfo => self.run_debuginfo_test(),
344 Codegen => self.run_codegen_test(),
345 Rustdoc => self.run_rustdoc_test(),
346 RustdocJson => self.run_rustdoc_json_test(),
347 CodegenUnits => self.run_codegen_units_test(),
348 Incremental => self.run_incremental_test(),
349 RunMake => self.run_rmake_test(),
350 Ui => self.run_ui_test(),
351 MirOpt => self.run_mir_opt_test(),
352 Assembly => self.run_assembly_test(),
353 JsDocTest => self.run_js_doc_test(),
357 fn pass_mode(&self) -> Option<PassMode> {
358 self.props.pass_mode(self.config)
361 fn should_run(&self, pm: Option<PassMode>) -> WillExecute {
362 let test_should_run = match self.config.mode {
363 Ui if pm == Some(PassMode::Run) || self.props.fail_mode == Some(FailMode::Run) => true,
364 MirOpt if pm == Some(PassMode::Run) => true,
365 Ui | MirOpt => false,
366 mode => panic!("unimplemented for mode {:?}", mode),
368 if test_should_run { self.run_if_enabled() } else { WillExecute::No }
371 fn run_if_enabled(&self) -> WillExecute {
372 if self.config.run_enabled() { WillExecute::Yes } else { WillExecute::Disabled }
375 fn should_run_successfully(&self, pm: Option<PassMode>) -> bool {
376 match self.config.mode {
377 Ui | MirOpt => pm == Some(PassMode::Run),
378 mode => panic!("unimplemented for mode {:?}", mode),
382 fn should_compile_successfully(&self, pm: Option<PassMode>) -> bool {
383 match self.config.mode {
385 Ui => pm.is_some() || self.props.fail_mode > Some(FailMode::Build),
388 self.revision.expect("incremental tests require a list of revisions");
389 if revision.starts_with("rpass") || revision.starts_with("rfail") {
391 } else if revision.starts_with("cfail") {
392 // FIXME: would be nice if incremental revs could start with "cpass"
395 panic!("revision name must begin with rpass, rfail, or cfail");
398 mode => panic!("unimplemented for mode {:?}", mode),
402 fn check_if_test_should_compile(&self, proc_res: &ProcRes, pm: Option<PassMode>) {
403 if self.should_compile_successfully(pm) {
404 if !proc_res.status.success() {
405 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
408 if proc_res.status.success() {
410 &format!("{} test compiled successfully!", self.config.mode)[..],
415 self.check_correct_failure_status(proc_res);
419 fn run_cfail_test(&self) {
420 let pm = self.pass_mode();
421 let proc_res = self.compile_test(WillExecute::No, self.should_emit_metadata(pm));
422 self.check_if_test_should_compile(&proc_res, pm);
423 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
425 let output_to_check = self.get_output(&proc_res);
426 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
427 if !expected_errors.is_empty() {
428 if !self.props.error_patterns.is_empty() {
429 self.fatal("both error pattern and expected errors specified");
431 self.check_expected_errors(expected_errors, &proc_res);
433 self.check_error_patterns(&output_to_check, &proc_res, pm);
435 if self.props.should_ice {
436 match proc_res.status.code() {
438 _ => self.fatal("expected ICE"),
442 self.check_forbid_output(&output_to_check, &proc_res);
445 fn run_rfail_test(&self) {
446 let pm = self.pass_mode();
447 let should_run = self.run_if_enabled();
448 let proc_res = self.compile_test(should_run, self.should_emit_metadata(pm));
450 if !proc_res.status.success() {
451 self.fatal_proc_rec("compilation failed!", &proc_res);
454 if let WillExecute::Disabled = should_run {
458 let proc_res = self.exec_compiled_test();
460 // The value our Makefile configures valgrind to return on failure
461 const VALGRIND_ERR: i32 = 100;
462 if proc_res.status.code() == Some(VALGRIND_ERR) {
463 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
466 let output_to_check = self.get_output(&proc_res);
467 self.check_correct_failure_status(&proc_res);
468 self.check_error_patterns(&output_to_check, &proc_res, pm);
471 fn get_output(&self, proc_res: &ProcRes) -> String {
472 if self.props.check_stdout {
473 format!("{}{}", proc_res.stdout, proc_res.stderr)
475 proc_res.stderr.clone()
479 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
480 let expected_status = Some(self.props.failure_status);
481 let received_status = proc_res.status.code();
483 if expected_status != received_status {
486 "Error: expected failure status ({:?}) but received status {:?}.",
487 expected_status, received_status
494 fn run_rpass_test(&self) {
495 let emit_metadata = self.should_emit_metadata(self.pass_mode());
496 let should_run = self.run_if_enabled();
497 let proc_res = self.compile_test(should_run, emit_metadata);
499 if !proc_res.status.success() {
500 self.fatal_proc_rec("compilation failed!", &proc_res);
503 if let WillExecute::Disabled = should_run {
507 // FIXME(#41968): Move this check to tidy?
508 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
510 expected_errors.is_empty(),
511 "run-pass tests with expected warnings should be moved to ui/"
514 let proc_res = self.exec_compiled_test();
515 if !proc_res.status.success() {
516 self.fatal_proc_rec("test run failed!", &proc_res);
520 fn run_valgrind_test(&self) {
521 assert!(self.revision.is_none(), "revisions not relevant here");
523 if self.config.valgrind_path.is_none() {
524 assert!(!self.config.force_valgrind);
525 return self.run_rpass_test();
528 let should_run = self.run_if_enabled();
529 let mut proc_res = self.compile_test(should_run, EmitMetadata::No);
531 if !proc_res.status.success() {
532 self.fatal_proc_rec("compilation failed!", &proc_res);
535 if let WillExecute::Disabled = should_run {
539 let mut new_config = self.config.clone();
540 new_config.runtool = new_config.valgrind_path.clone();
541 let new_cx = TestCx { config: &new_config, ..*self };
542 proc_res = new_cx.exec_compiled_test();
544 if !proc_res.status.success() {
545 self.fatal_proc_rec("test run failed!", &proc_res);
549 fn run_pretty_test(&self) {
550 if self.props.pp_exact.is_some() {
551 logv(self.config, "testing for exact pretty-printing".to_owned());
553 logv(self.config, "testing for converging pretty-printing".to_owned());
556 let rounds = match self.props.pp_exact {
561 let src = fs::read_to_string(&self.testpaths.file).unwrap();
562 let mut srcs = vec![src];
565 while round < rounds {
568 format!("pretty-printing round {} revision {:?}", round, self.revision),
571 if round == 0 { ReadFrom::Path } else { ReadFrom::Stdin(srcs[round].to_owned()) };
573 let proc_res = self.print_source(read_from, &self.props.pretty_mode);
574 if !proc_res.status.success() {
577 "pretty-printing failed in round {} revision {:?}",
584 let ProcRes { stdout, .. } = proc_res;
589 let mut expected = match self.props.pp_exact {
591 let filepath = self.testpaths.file.parent().unwrap().join(file);
592 fs::read_to_string(&filepath).unwrap()
594 None => srcs[srcs.len() - 2].clone(),
596 let mut actual = srcs[srcs.len() - 1].clone();
598 if self.props.pp_exact.is_some() {
599 // Now we have to care about line endings
600 let cr = "\r".to_owned();
601 actual = actual.replace(&cr, "");
602 expected = expected.replace(&cr, "");
605 self.compare_source(&expected, &actual);
607 // If we're only making sure that the output matches then just stop here
608 if self.props.pretty_compare_only {
612 // Finally, let's make sure it actually appears to remain valid code
613 let proc_res = self.typecheck_source(actual);
614 if !proc_res.status.success() {
615 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
618 if !self.props.pretty_expanded {
622 // additionally, run `--pretty expanded` and try to build it.
623 let proc_res = self.print_source(ReadFrom::Path, "expanded");
624 if !proc_res.status.success() {
625 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
628 let ProcRes { stdout: expanded_src, .. } = proc_res;
629 let proc_res = self.typecheck_source(expanded_src);
630 if !proc_res.status.success() {
631 self.fatal_proc_rec("pretty-printed source (expanded) does not typecheck", &proc_res);
635 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
636 let aux_dir = self.aux_output_dir_name();
637 let input: &str = match read_from {
638 ReadFrom::Stdin(_) => "-",
639 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
642 let mut rustc = Command::new(&self.config.rustc_path);
645 .args(&["-Z", &format!("unpretty={}", pretty_type)])
646 .args(&["--target", &self.config.target])
649 .args(&self.props.compile_flags)
650 .envs(self.props.rustc_env.clone());
651 self.maybe_add_external_args(
653 self.split_maybe_args(&self.config.target_rustcflags),
656 let src = match read_from {
657 ReadFrom::Stdin(src) => Some(src),
658 ReadFrom::Path => None,
661 self.compose_and_run(
663 self.config.compile_lib_path.to_str().unwrap(),
664 Some(aux_dir.to_str().unwrap()),
669 fn compare_source(&self, expected: &str, actual: &str) {
670 if expected != actual {
672 "pretty-printed source does not match expected source\n\
674 ------------------------------------------\n\
676 ------------------------------------------\n\
678 ------------------------------------------\n\
680 ------------------------------------------\n\
682 ------------------------------------------\n\
686 write_diff(expected, actual, 3),
691 fn set_revision_flags(&self, cmd: &mut Command) {
692 if let Some(revision) = self.revision {
693 // Normalize revisions to be lowercase and replace `-`s with `_`s.
694 // Otherwise the `--cfg` flag is not valid.
695 let normalized_revision = revision.to_lowercase().replace("-", "_");
696 cmd.args(&["--cfg", &normalized_revision]);
700 fn typecheck_source(&self, src: String) -> ProcRes {
701 let mut rustc = Command::new(&self.config.rustc_path);
703 let out_dir = self.output_base_name().with_extension("pretty-out");
704 let _ = fs::remove_dir_all(&out_dir);
705 create_dir_all(&out_dir).unwrap();
707 let target = if self.props.force_host { &*self.config.host } else { &*self.config.target };
709 let aux_dir = self.aux_output_dir_name();
716 .arg(&format!("--target={}", target))
718 .arg(&self.config.build_base)
721 self.set_revision_flags(&mut rustc);
722 self.maybe_add_external_args(
724 self.split_maybe_args(&self.config.target_rustcflags),
726 rustc.args(&self.props.compile_flags);
728 self.compose_and_run_compiler(rustc, Some(src))
731 fn run_debuginfo_test(&self) {
732 match self.config.debugger.unwrap() {
733 Debugger::Cdb => self.run_debuginfo_cdb_test(),
734 Debugger::Gdb => self.run_debuginfo_gdb_test(),
735 Debugger::Lldb => self.run_debuginfo_lldb_test(),
739 fn run_debuginfo_cdb_test(&self) {
740 assert!(self.revision.is_none(), "revisions not relevant here");
742 let config = Config {
743 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
744 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
745 ..self.config.clone()
748 let test_cx = TestCx { config: &config, ..*self };
750 test_cx.run_debuginfo_cdb_test_no_opt();
753 fn run_debuginfo_cdb_test_no_opt(&self) {
754 // compile test file (it should have 'compile-flags:-g' in the header)
755 let should_run = self.run_if_enabled();
756 let compile_result = self.compile_test(should_run, EmitMetadata::No);
757 if !compile_result.status.success() {
758 self.fatal_proc_rec("compilation failed!", &compile_result);
760 if let WillExecute::Disabled = should_run {
764 let exe_file = self.make_exe_name();
767 static PREFIXES: &[&str] = &["cdb", "cdbg"];
768 // No "native rust support" variation for CDB yet.
772 // Parse debugger commands etc from test files
773 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
774 self.parse_debugger_commands(prefixes);
776 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
777 let mut script_str = String::with_capacity(2048);
778 script_str.push_str("version\n"); // List CDB (and more) version info in test output
779 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
781 // If a .js file exists next to the source file being tested, then this is a JavaScript
782 // debugging extension that needs to be loaded.
783 let mut js_extension = self.testpaths.file.clone();
784 js_extension.set_extension("cdb.js");
785 if js_extension.exists() {
786 script_str.push_str(&format!(".scriptload \"{}\"\n", js_extension.to_string_lossy()));
789 // Set breakpoints on every line that contains the string "#break"
790 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
791 for line in &breakpoint_lines {
792 script_str.push_str(&format!("bp `{}:{}`\n", source_file_name, line));
795 // Append the other `cdb-command:`s
796 for line in &commands {
797 script_str.push_str(line);
798 script_str.push_str("\n");
801 script_str.push_str("\nqq\n"); // Quit the debugger (including remote debugger, if any)
803 // Write the script into a file
804 debug!("script_str = {}", script_str);
805 self.dump_output_file(&script_str, "debugger.script");
806 let debugger_script = self.make_out_name("debugger.script");
808 let cdb_path = &self.config.cdb.as_ref().unwrap();
809 let mut cdb = Command::new(cdb_path);
810 cdb.arg("-lines") // Enable source line debugging.
812 .arg(&debugger_script)
815 let debugger_run_result = self.compose_and_run(
817 self.config.run_lib_path.to_str().unwrap(),
822 if !debugger_run_result.status.success() {
823 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
826 self.check_debugger_output(&debugger_run_result, &check_lines);
829 fn run_debuginfo_gdb_test(&self) {
830 assert!(self.revision.is_none(), "revisions not relevant here");
832 let config = Config {
833 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
834 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
835 ..self.config.clone()
838 let test_cx = TestCx { config: &config, ..*self };
840 test_cx.run_debuginfo_gdb_test_no_opt();
843 fn run_debuginfo_gdb_test_no_opt(&self) {
844 let prefixes = if self.config.gdb_native_rust {
846 static PREFIXES: &[&str] = &["gdb", "gdbr"];
847 println!("NOTE: compiletest thinks it is using GDB with native rust support");
851 static PREFIXES: &[&str] = &["gdb", "gdbg"];
852 println!("NOTE: compiletest thinks it is using GDB without native rust support");
856 let DebuggerCommands { commands, check_lines, breakpoint_lines } =
857 self.parse_debugger_commands(prefixes);
858 let mut cmds = commands.join("\n");
860 // compile test file (it should have 'compile-flags:-g' in the header)
861 let should_run = self.run_if_enabled();
862 let compiler_run_result = self.compile_test(should_run, EmitMetadata::No);
863 if !compiler_run_result.status.success() {
864 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
866 if let WillExecute::Disabled = should_run {
870 let exe_file = self.make_exe_name();
872 let debugger_run_result;
873 if is_android_gdb_target(&self.config.target) {
874 cmds = cmds.replace("run", "continue");
876 let tool_path = match self.config.android_cross_path.to_str() {
877 Some(x) => x.to_owned(),
878 None => self.fatal("cannot find android cross path"),
881 // write debugger script
882 let mut script_str = String::with_capacity(2048);
883 script_str.push_str(&format!("set charset {}\n", Self::charset()));
884 script_str.push_str(&format!("set sysroot {}\n", tool_path));
885 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
886 script_str.push_str("target remote :5039\n");
887 script_str.push_str(&format!(
888 "set solib-search-path \
889 ./{}/stage2/lib/rustlib/{}/lib/\n",
890 self.config.host, self.config.target
892 for line in &breakpoint_lines {
896 self.testpaths.file.file_name().unwrap().to_string_lossy(),
901 script_str.push_str(&cmds);
902 script_str.push_str("\nquit\n");
904 debug!("script_str = {}", script_str);
905 self.dump_output_file(&script_str, "debugger.script");
907 let adb_path = &self.config.adb_path;
909 Command::new(adb_path)
912 .arg(&self.config.adb_test_dir)
914 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
916 Command::new(adb_path)
917 .args(&["forward", "tcp:5039", "tcp:5039"])
919 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
921 let adb_arg = format!(
922 "export LD_LIBRARY_PATH={}; \
923 gdbserver{} :5039 {}/{}",
924 self.config.adb_test_dir.clone(),
925 if self.config.target.contains("aarch64") { "64" } else { "" },
926 self.config.adb_test_dir.clone(),
927 exe_file.file_name().unwrap().to_str().unwrap()
930 debug!("adb arg: {}", adb_arg);
931 let mut adb = Command::new(adb_path)
932 .args(&["shell", &adb_arg])
933 .stdout(Stdio::piped())
934 .stderr(Stdio::inherit())
936 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", adb_path));
938 // Wait for the gdbserver to print out "Listening on port ..."
939 // at which point we know that it's started and then we can
940 // execute the debugger below.
941 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
942 let mut line = String::new();
945 stdout.read_line(&mut line).unwrap();
946 if line.starts_with("Listening on port 5039") {
952 let mut debugger_script = OsString::from("-command=");
953 debugger_script.push(self.make_out_name("debugger.script"));
954 let debugger_opts: &[&OsStr] =
955 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
957 let gdb_path = self.config.gdb.as_ref().unwrap();
958 let Output { status, stdout, stderr } = Command::new(&gdb_path)
961 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", gdb_path));
963 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
964 gdb.args(debugger_opts);
965 let cmdline = self.make_cmdline(&gdb, "");
966 logv(self.config, format!("executing {}", cmdline));
970 debugger_run_result = ProcRes {
972 stdout: String::from_utf8(stdout).unwrap(),
973 stderr: String::from_utf8(stderr).unwrap(),
976 if adb.kill().is_err() {
977 println!("Adb process is already finished.");
981 self.config.find_rust_src_root().expect("Could not find Rust source root");
982 let rust_pp_module_rel_path = Path::new("./src/etc");
983 let rust_pp_module_abs_path =
984 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
985 // write debugger script
986 let mut script_str = String::with_capacity(2048);
987 script_str.push_str(&format!("set charset {}\n", Self::charset()));
988 script_str.push_str("show version\n");
990 match self.config.gdb_version {
992 println!("NOTE: compiletest thinks it is using GDB version {}", version);
994 if version > extract_gdb_version("7.4").unwrap() {
995 // Add the directory containing the pretty printers to
996 // GDB's script auto loading safe path
997 script_str.push_str(&format!(
998 "add-auto-load-safe-path {}\n",
999 rust_pp_module_abs_path.replace(r"\", r"\\")
1005 "NOTE: compiletest does not know which version of \
1011 // The following line actually doesn't have to do anything with
1012 // pretty printing, it just tells GDB to print values on one line:
1013 script_str.push_str("set print pretty off\n");
1015 // Add the pretty printer directory to GDB's source-file search path
1017 .push_str(&format!("directory {}\n", rust_pp_module_abs_path.replace(r"\", r"\\")));
1019 // Load the target executable
1021 .push_str(&format!("file {}\n", exe_file.to_str().unwrap().replace(r"\", r"\\")));
1023 // Force GDB to print values in the Rust format.
1024 if self.config.gdb_native_rust {
1025 script_str.push_str("set language rust\n");
1028 // Add line breakpoints
1029 for line in &breakpoint_lines {
1030 script_str.push_str(&format!(
1032 self.testpaths.file.file_name().unwrap().to_string_lossy(),
1037 script_str.push_str(&cmds);
1038 script_str.push_str("\nquit\n");
1040 debug!("script_str = {}", script_str);
1041 self.dump_output_file(&script_str, "debugger.script");
1043 let mut debugger_script = OsString::from("-command=");
1044 debugger_script.push(self.make_out_name("debugger.script"));
1046 let debugger_opts: &[&OsStr] =
1047 &["-quiet".as_ref(), "-batch".as_ref(), "-nx".as_ref(), &debugger_script];
1049 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
1050 gdb.args(debugger_opts).env("PYTHONPATH", rust_pp_module_abs_path);
1052 debugger_run_result =
1053 self.compose_and_run(gdb, self.config.run_lib_path.to_str().unwrap(), None, None);
1056 if !debugger_run_result.status.success() {
1057 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
1060 self.check_debugger_output(&debugger_run_result, &check_lines);
1063 fn run_debuginfo_lldb_test(&self) {
1064 assert!(self.revision.is_none(), "revisions not relevant here");
1066 if self.config.lldb_python_dir.is_none() {
1067 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1070 let config = Config {
1071 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1072 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1073 ..self.config.clone()
1076 let test_cx = TestCx { config: &config, ..*self };
1078 test_cx.run_debuginfo_lldb_test_no_opt();
1081 fn run_debuginfo_lldb_test_no_opt(&self) {
1082 // compile test file (it should have 'compile-flags:-g' in the header)
1083 let should_run = self.run_if_enabled();
1084 let compile_result = self.compile_test(should_run, EmitMetadata::No);
1085 if !compile_result.status.success() {
1086 self.fatal_proc_rec("compilation failed!", &compile_result);
1088 if let WillExecute::Disabled = should_run {
1092 let exe_file = self.make_exe_name();
1094 match self.config.lldb_version {
1095 Some(ref version) => {
1096 println!("NOTE: compiletest thinks it is using LLDB version {}", version);
1100 "NOTE: compiletest does not know which version of \
1106 let prefixes = if self.config.lldb_native_rust {
1107 static PREFIXES: &[&str] = &["lldb", "lldbr"];
1108 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1111 static PREFIXES: &[&str] = &["lldb", "lldbg"];
1112 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1116 // Parse debugger commands etc from test files
1117 let DebuggerCommands { commands, check_lines, breakpoint_lines, .. } =
1118 self.parse_debugger_commands(prefixes);
1120 // Write debugger script:
1121 // We don't want to hang when calling `quit` while the process is still running
1122 let mut script_str = String::from("settings set auto-confirm true\n");
1124 // Make LLDB emit its version, so we have it documented in the test output
1125 script_str.push_str("version\n");
1127 // Switch LLDB into "Rust mode"
1129 self.config.find_rust_src_root().expect("Could not find Rust source root");
1130 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_lookup.py");
1131 let rust_pp_module_abs_path =
1132 rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned();
1134 let rust_type_regexes = vec![
1135 "^(alloc::([a-z_]+::)+)String$",
1138 "^(std::ffi::([a-z_]+::)+)OsString$",
1139 "^(alloc::([a-z_]+::)+)Vec<.+>$",
1140 "^(alloc::([a-z_]+::)+)VecDeque<.+>$",
1141 "^(alloc::([a-z_]+::)+)BTreeSet<.+>$",
1142 "^(alloc::([a-z_]+::)+)BTreeMap<.+>$",
1143 "^(std::collections::([a-z_]+::)+)HashMap<.+>$",
1144 "^(std::collections::([a-z_]+::)+)HashSet<.+>$",
1145 "^(alloc::([a-z_]+::)+)Rc<.+>$",
1146 "^(alloc::([a-z_]+::)+)Arc<.+>$",
1147 "^(core::([a-z_]+::)+)Cell<.+>$",
1148 "^(core::([a-z_]+::)+)Ref<.+>$",
1149 "^(core::([a-z_]+::)+)RefMut<.+>$",
1150 "^(core::([a-z_]+::)+)RefCell<.+>$",
1154 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1155 script_str.push_str("type synthetic add -l lldb_lookup.synthetic_lookup -x '.*' ");
1156 script_str.push_str("--category Rust\n");
1157 for type_regex in rust_type_regexes {
1158 script_str.push_str("type summary add -F lldb_lookup.summary_lookup -e -x -h ");
1159 script_str.push_str(&format!("'{}' ", type_regex));
1160 script_str.push_str("--category Rust\n");
1162 script_str.push_str("type category enable Rust\n");
1164 // Set breakpoints on every line that contains the string "#break"
1165 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1166 for line in &breakpoint_lines {
1167 script_str.push_str(&format!(
1168 "breakpoint set --file '{}' --line {}\n",
1169 source_file_name, line
1173 // Append the other commands
1174 for line in &commands {
1175 script_str.push_str(line);
1176 script_str.push_str("\n");
1179 // Finally, quit the debugger
1180 script_str.push_str("\nquit\n");
1182 // Write the script into a file
1183 debug!("script_str = {}", script_str);
1184 self.dump_output_file(&script_str, "debugger.script");
1185 let debugger_script = self.make_out_name("debugger.script");
1187 // Let LLDB execute the script via lldb_batchmode.py
1188 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1190 if !debugger_run_result.status.success() {
1191 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1194 self.check_debugger_output(&debugger_run_result, &check_lines);
1199 test_executable: &Path,
1200 debugger_script: &Path,
1201 rust_src_root: &Path,
1203 // Prepare the lldb_batchmode which executes the debugger script
1204 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1206 Command::new(&self.config.lldb_python)
1207 .arg(&lldb_script_path)
1208 .arg(test_executable)
1209 .arg(debugger_script)
1210 .env("PYTHONUNBUFFERED", "1") // Help debugging #78665
1211 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1215 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1216 let (status, out, err) = match cmd.output() {
1217 Ok(Output { status, stdout, stderr }) => {
1218 (status, String::from_utf8(stdout).unwrap(), String::from_utf8(stderr).unwrap())
1220 Err(e) => self.fatal(&format!(
1221 "Failed to setup Python process for \
1227 self.dump_output(&out, &err);
1228 ProcRes { status, stdout: out, stderr: err, cmdline: format!("{:?}", cmd) }
1231 fn parse_debugger_commands(&self, debugger_prefixes: &[&str]) -> DebuggerCommands {
1232 let directives = debugger_prefixes
1234 .map(|prefix| (format!("{}-command", prefix), format!("{}-check", prefix)))
1235 .collect::<Vec<_>>();
1237 let mut breakpoint_lines = vec![];
1238 let mut commands = vec![];
1239 let mut check_lines = vec![];
1240 let mut counter = 1;
1241 let reader = BufReader::new(File::open(&self.testpaths.file).unwrap());
1242 for line in reader.lines() {
1246 if line.starts_with("//") { line[2..].trim_start() } else { line.as_str() };
1248 if line.contains("#break") {
1249 breakpoint_lines.push(counter);
1252 for &(ref command_directive, ref check_directive) in &directives {
1254 .parse_name_value_directive(&line, command_directive)
1255 .map(|cmd| commands.push(cmd));
1258 .parse_name_value_directive(&line, check_directive)
1259 .map(|cmd| check_lines.push(cmd));
1262 Err(e) => self.fatal(&format!("Error while parsing debugger commands: {}", e)),
1267 DebuggerCommands { commands, check_lines, breakpoint_lines }
1270 fn cleanup_debug_info_options(&self, options: &Option<String>) -> Option<String> {
1271 if options.is_none() {
1275 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1276 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1277 let new_options = self
1278 .split_maybe_args(options)
1280 .filter(|x| !options_to_remove.contains(x))
1281 .collect::<Vec<String>>();
1283 Some(new_options.join(" "))
1286 fn maybe_add_external_args(&self, cmd: &mut Command, args: Vec<String>) {
1287 // Filter out the arguments that should not be added by runtest here.
1289 // Notable use-cases are: do not add our optimisation flag if
1290 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1291 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/ "opt-level="];
1292 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/ "debuginfo="];
1294 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1295 // its arguments. They need to be collected separately. For now I cannot be bothered to
1296 // implement this the "right" way.
1298 self.props.compile_flags.iter().any(|arg| OPT_FLAGS.iter().any(|f| arg.starts_with(f)));
1299 let have_debug_flag = self
1303 .any(|arg| DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)));
1306 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1309 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1316 fn check_debugger_output(&self, debugger_run_result: &ProcRes, check_lines: &[String]) {
1317 let num_check_lines = check_lines.len();
1319 let mut check_line_index = 0;
1320 for line in debugger_run_result.stdout.lines() {
1321 if check_line_index >= num_check_lines {
1325 if check_single_line(line, &(check_lines[check_line_index])[..]) {
1326 check_line_index += 1;
1329 if check_line_index != num_check_lines && num_check_lines > 0 {
1330 self.fatal_proc_rec(
1331 &format!("line not found in debugger output: {}", check_lines[check_line_index]),
1332 debugger_run_result,
1336 fn check_single_line(line: &str, check_line: &str) -> bool {
1337 // Allow check lines to leave parts unspecified (e.g., uninitialized
1338 // bits in the wrong case of an enum) with the notation "[...]".
1339 let line = line.trim();
1340 let check_line = check_line.trim();
1341 let can_start_anywhere = check_line.starts_with("[...]");
1342 let can_end_anywhere = check_line.ends_with("[...]");
1344 let check_fragments: Vec<&str> =
1345 check_line.split("[...]").filter(|frag| !frag.is_empty()).collect();
1346 if check_fragments.is_empty() {
1350 let (mut rest, first_fragment) = if can_start_anywhere {
1351 match line.find(check_fragments[0]) {
1352 Some(pos) => (&line[pos + check_fragments[0].len()..], 1),
1353 None => return false,
1359 for current_fragment in &check_fragments[first_fragment..] {
1360 match rest.find(current_fragment) {
1362 rest = &rest[pos + current_fragment.len()..];
1364 None => return false,
1368 if !can_end_anywhere && !rest.is_empty() {
1376 fn check_error_patterns(
1378 output_to_check: &str,
1380 pm: Option<PassMode>,
1382 debug!("check_error_patterns");
1383 if self.props.error_patterns.is_empty() {
1388 self.fatal(&format!(
1389 "no error pattern specified in {:?}",
1390 self.testpaths.file.display()
1395 let mut missing_patterns: Vec<String> = Vec::new();
1397 for pattern in &self.props.error_patterns {
1398 if output_to_check.contains(pattern.trim()) {
1399 debug!("found error pattern {}", pattern);
1401 missing_patterns.push(pattern.to_string());
1405 if missing_patterns.is_empty() {
1409 if missing_patterns.len() == 1 {
1410 self.fatal_proc_rec(
1411 &format!("error pattern '{}' not found!", missing_patterns[0]),
1415 for pattern in missing_patterns {
1416 self.error(&format!("error pattern '{}' not found!", pattern));
1418 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1422 fn check_no_compiler_crash(&self, proc_res: &ProcRes, should_ice: bool) {
1423 match proc_res.status.code() {
1424 Some(101) if !should_ice => {
1425 self.fatal_proc_rec("compiler encountered internal error", proc_res)
1427 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1432 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1433 for pat in &self.props.forbid_output {
1434 if output_to_check.contains(pat) {
1435 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1440 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1442 "check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1443 expected_errors, proc_res.status
1445 if proc_res.status.success()
1446 && expected_errors.iter().any(|x| x.kind == Some(ErrorKind::Error))
1448 self.fatal_proc_rec("process did not return an error status", proc_res);
1451 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1452 // from the compiler
1453 let os_file_name = self.testpaths.file.display().to_string();
1455 // on windows, translate all '\' path separators to '/'
1456 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1458 // If the testcase being checked contains at least one expected "help"
1459 // message, then we'll ensure that all "help" messages are expected.
1460 // Otherwise, all "help" messages reported by the compiler will be ignored.
1461 // This logic also applies to "note" messages.
1462 let expect_help = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Help));
1463 let expect_note = expected_errors.iter().any(|ee| ee.kind == Some(ErrorKind::Note));
1465 // Parse the JSON output from the compiler and extract out the messages.
1466 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1467 let mut unexpected = Vec::new();
1468 let mut found = vec![false; expected_errors.len()];
1469 for actual_error in &actual_errors {
1471 expected_errors.iter().enumerate().position(|(index, expected_error)| {
1473 && actual_error.line_num == expected_error.line_num
1474 && (expected_error.kind.is_none()
1475 || actual_error.kind == expected_error.kind)
1476 && actual_error.msg.contains(&expected_error.msg)
1481 // found a match, everybody is happy
1482 assert!(!found[index]);
1483 found[index] = true;
1487 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1488 self.error(&format!(
1489 "{}:{}: unexpected {}: '{}'",
1491 actual_error.line_num,
1495 .map_or(String::from("message"), |k| k.to_string()),
1498 unexpected.push(actual_error);
1504 let mut not_found = Vec::new();
1505 // anything not yet found is a problem
1506 for (index, expected_error) in expected_errors.iter().enumerate() {
1508 self.error(&format!(
1509 "{}:{}: expected {} not found: {}",
1511 expected_error.line_num,
1512 expected_error.kind.as_ref().map_or("message".into(), |k| k.to_string()),
1515 not_found.push(expected_error);
1519 if !unexpected.is_empty() || !not_found.is_empty() {
1520 self.error(&format!(
1521 "{} unexpected errors found, {} expected errors not found",
1525 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1526 if !unexpected.is_empty() {
1527 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1529 if !not_found.is_empty() {
1530 println!("not found errors (from test file): {:#?}\n", not_found);
1536 /// Returns `true` if we should report an error about `actual_error`,
1537 /// which did not match any of the expected error. We always require
1538 /// errors/warnings to be explicitly listed, but only require
1539 /// helps/notes if there are explicit helps/notes given.
1540 fn is_unexpected_compiler_message(
1542 actual_error: &Error,
1546 match actual_error.kind {
1547 Some(ErrorKind::Help) => expect_help,
1548 Some(ErrorKind::Note) => expect_note,
1549 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1550 Some(ErrorKind::Suggestion) | None => false,
1554 fn should_emit_metadata(&self, pm: Option<PassMode>) -> EmitMetadata {
1555 match (pm, self.props.fail_mode, self.config.mode) {
1556 (Some(PassMode::Check), ..) | (_, Some(FailMode::Check), Ui) => EmitMetadata::Yes,
1557 _ => EmitMetadata::No,
1561 fn compile_test(&self, will_execute: WillExecute, emit_metadata: EmitMetadata) -> ProcRes {
1562 self.compile_test_general(will_execute, emit_metadata, self.props.local_pass_mode())
1565 fn compile_test_general(
1567 will_execute: WillExecute,
1568 emit_metadata: EmitMetadata,
1569 local_pm: Option<PassMode>,
1571 // Only use `make_exe_name` when the test ends up being executed.
1572 let output_file = match will_execute {
1573 WillExecute::Yes => TargetLocation::ThisFile(self.make_exe_name()),
1574 WillExecute::No | WillExecute::Disabled => {
1575 TargetLocation::ThisDirectory(self.output_base_dir())
1579 let allow_unused = match self.config.mode {
1581 // UI tests tend to have tons of unused code as
1582 // it's just testing various pieces of the compile, but we don't
1583 // want to actually assert warnings about all this code. Instead
1584 // let's just ignore unused code warnings by defaults and tests
1585 // can turn it back on if needed.
1586 if !self.is_rustdoc()
1587 // Note that we use the local pass mode here as we don't want
1588 // to set unused to allow if we've overridden the pass mode
1589 // via command line flags.
1590 && local_pm != Some(PassMode::Run)
1597 _ => AllowUnused::No,
1601 self.make_compile_args(&self.testpaths.file, output_file, emit_metadata, allow_unused);
1603 rustc.arg("-L").arg(&self.aux_output_dir_name());
1605 self.compose_and_run_compiler(rustc, None)
1608 fn document(&self, out_dir: &Path) -> ProcRes {
1609 if self.props.build_aux_docs {
1610 for rel_ab in &self.props.aux_builds {
1611 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1613 self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1614 let aux_cx = TestCx {
1615 config: self.config,
1617 testpaths: &aux_testpaths,
1618 revision: self.revision,
1620 // Create the directory for the stdout/stderr files.
1621 create_dir_all(aux_cx.output_base_dir()).unwrap();
1622 let auxres = aux_cx.document(out_dir);
1623 if !auxres.status.success() {
1629 let aux_dir = self.aux_output_dir_name();
1631 let rustdoc_path = self.config.rustdoc_path.as_ref().expect("--rustdoc-path not passed");
1632 let mut rustdoc = Command::new(rustdoc_path);
1636 .arg(self.config.run_lib_path.to_str().unwrap())
1641 .arg(&self.testpaths.file)
1642 .args(&self.props.compile_flags);
1644 if self.config.mode == RustdocJson {
1645 rustdoc.arg("--output-format").arg("json").arg("-Zunstable-options");
1648 if let Some(ref linker) = self.config.linker {
1649 rustdoc.arg(format!("-Clinker={}", linker));
1652 self.compose_and_run_compiler(rustdoc, None)
1655 fn exec_compiled_test(&self) -> ProcRes {
1656 let env = &self.props.exec_env;
1658 let proc_res = match &*self.config.target {
1659 // This is pretty similar to below, we're transforming:
1661 // program arg1 arg2
1665 // remote-test-client run program 2 support-lib.so support-lib2.so arg1 arg2
1667 // The test-client program will upload `program` to the emulator
1668 // along with all other support libraries listed (in this case
1669 // `support-lib.so` and `support-lib2.so`. It will then execute
1670 // the program on the emulator with the arguments specified
1671 // (in the environment we give the process) and then report back
1673 _ if self.config.remote_test_client.is_some() => {
1674 let aux_dir = self.aux_output_dir_name();
1675 let ProcArgs { prog, args } = self.make_run_args();
1676 let mut support_libs = Vec::new();
1677 if let Ok(entries) = aux_dir.read_dir() {
1678 for entry in entries {
1679 let entry = entry.unwrap();
1680 if !entry.path().is_file() {
1683 support_libs.push(entry.path());
1686 let mut test_client =
1687 Command::new(self.config.remote_test_client.as_ref().unwrap());
1689 .args(&["run", &support_libs.len().to_string(), &prog])
1693 self.compose_and_run(
1695 self.config.run_lib_path.to_str().unwrap(),
1696 Some(aux_dir.to_str().unwrap()),
1700 _ if self.config.target.contains("vxworks") => {
1701 let aux_dir = self.aux_output_dir_name();
1702 let ProcArgs { prog, args } = self.make_run_args();
1703 let mut wr_run = Command::new("wr-run");
1704 wr_run.args(&[&prog]).args(args).envs(env.clone());
1705 self.compose_and_run(
1707 self.config.run_lib_path.to_str().unwrap(),
1708 Some(aux_dir.to_str().unwrap()),
1713 let aux_dir = self.aux_output_dir_name();
1714 let ProcArgs { prog, args } = self.make_run_args();
1715 let mut program = Command::new(&prog);
1716 program.args(args).current_dir(&self.output_base_dir()).envs(env.clone());
1717 self.compose_and_run(
1719 self.config.run_lib_path.to_str().unwrap(),
1720 Some(aux_dir.to_str().unwrap()),
1726 if proc_res.status.success() {
1727 // delete the executable after running it to save space.
1728 // it is ok if the deletion failed.
1729 let _ = fs::remove_file(self.make_exe_name());
1735 /// For each `aux-build: foo/bar` annotation, we check to find the
1736 /// file in a `auxiliary` directory relative to the test itself.
1737 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1742 .expect("test file path has no parent")
1745 if !test_ab.exists() {
1746 self.fatal(&format!("aux-build `{}` source not found", test_ab.display()))
1754 .join(self.output_testname_unique())
1758 .expect("aux-build path has no parent")
1763 fn is_vxworks_pure_static(&self) -> bool {
1764 if self.config.target.contains("vxworks") {
1765 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1774 fn is_vxworks_pure_dynamic(&self) -> bool {
1775 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1778 fn build_all_auxiliary(&self, rustc: &mut Command) -> PathBuf {
1779 let aux_dir = self.aux_output_dir_name();
1781 if !self.props.aux_builds.is_empty() {
1782 let _ = fs::remove_dir_all(&aux_dir);
1783 create_dir_all(&aux_dir).unwrap();
1786 for rel_ab in &self.props.aux_builds {
1787 self.build_auxiliary(rel_ab, &aux_dir);
1790 for (aux_name, aux_path) in &self.props.aux_crates {
1791 let is_dylib = self.build_auxiliary(&aux_path, &aux_dir);
1793 get_lib_name(&aux_path.trim_end_matches(".rs").replace('-', "_"), is_dylib);
1794 rustc.arg("--extern").arg(format!("{}={}/{}", aux_name, aux_dir.display(), lib_name));
1796 if !self.props.aux_crates.is_empty() {
1797 rustc.arg("-Zunstable-options");
1803 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1804 let aux_dir = self.build_all_auxiliary(&mut rustc);
1805 self.props.unset_rustc_env.clone().iter().fold(&mut rustc, |rustc, v| rustc.env_remove(v));
1806 rustc.envs(self.props.rustc_env.clone());
1807 self.compose_and_run(
1809 self.config.compile_lib_path.to_str().unwrap(),
1810 Some(aux_dir.to_str().unwrap()),
1815 /// Builds an aux dependency.
1817 /// Returns whether or not it is a dylib.
1818 fn build_auxiliary(&self, source_path: &str, aux_dir: &Path) -> bool {
1819 let aux_testpaths = self.compute_aux_test_paths(source_path);
1820 let aux_props = self.props.from_aux_file(&aux_testpaths.file, self.revision, self.config);
1821 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1822 let aux_cx = TestCx {
1823 config: self.config,
1825 testpaths: &aux_testpaths,
1826 revision: self.revision,
1828 // Create the directory for the stdout/stderr files.
1829 create_dir_all(aux_cx.output_base_dir()).unwrap();
1830 let input_file = &aux_testpaths.file;
1832 aux_cx.make_compile_args(input_file, aux_output, EmitMetadata::No, AllowUnused::No);
1834 for key in &aux_props.unset_rustc_env {
1835 aux_rustc.env_remove(key);
1837 aux_rustc.envs(aux_props.rustc_env.clone());
1839 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1841 } else if self.config.target.contains("emscripten")
1842 || (self.config.target.contains("musl")
1843 && !aux_props.force_host
1844 && !self.config.host.contains("musl"))
1845 || self.config.target.contains("wasm32")
1846 || self.config.target.contains("nvptx")
1847 || self.is_vxworks_pure_static()
1848 || self.config.target.contains("sgx")
1849 || self.config.target.contains("bpf")
1851 // We primarily compile all auxiliary libraries as dynamic libraries
1852 // to avoid code size bloat and large binaries as much as possible
1853 // for the test suite (otherwise including libstd statically in all
1854 // executables takes up quite a bit of space).
1856 // For targets like MUSL or Emscripten, however, there is no support for
1857 // dynamic libraries so we just go back to building a normal library. Note,
1858 // however, that for MUSL if the library is built with `force_host` then
1859 // it's ok to be a dylib as the host should always support dylibs.
1860 (false, Some("lib"))
1862 (true, Some("dylib"))
1865 if let Some(crate_type) = crate_type {
1866 aux_rustc.args(&["--crate-type", crate_type]);
1869 aux_rustc.arg("-L").arg(&aux_dir);
1871 let auxres = aux_cx.compose_and_run(
1873 aux_cx.config.compile_lib_path.to_str().unwrap(),
1874 Some(aux_dir.to_str().unwrap()),
1877 if !auxres.status.success() {
1878 self.fatal_proc_rec(
1880 "auxiliary build of {:?} failed to compile: ",
1881 aux_testpaths.file.display()
1891 mut command: Command,
1893 aux_path: Option<&str>,
1894 input: Option<String>,
1897 let cmdline = self.make_cmdline(&command, lib_path);
1898 logv(self.config, format!("executing {}", cmdline));
1902 command.stdout(Stdio::piped()).stderr(Stdio::piped()).stdin(Stdio::piped());
1904 // Need to be sure to put both the lib_path and the aux path in the dylib
1905 // search path for the child.
1907 env::split_paths(&env::var_os(dylib_env_var()).unwrap_or_default()).collect::<Vec<_>>();
1908 if let Some(p) = aux_path {
1909 path.insert(0, PathBuf::from(p))
1911 path.insert(0, PathBuf::from(lib_path));
1913 // Add the new dylib search path var
1914 let newpath = env::join_paths(&path).unwrap();
1915 command.env(dylib_env_var(), newpath);
1917 let mut child = disable_error_reporting(|| command.spawn())
1918 .unwrap_or_else(|_| panic!("failed to exec `{:?}`", &command));
1919 if let Some(input) = input {
1920 child.stdin.as_mut().unwrap().write_all(input.as_bytes()).unwrap();
1923 let Output { status, stdout, stderr } =
1924 read2_abbreviated(child).expect("failed to read output");
1926 let result = ProcRes {
1928 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1929 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1933 self.dump_output(&result.stdout, &result.stderr);
1938 fn is_rustdoc(&self) -> bool {
1939 self.config.src_base.ends_with("rustdoc-ui")
1940 || self.config.src_base.ends_with("rustdoc-js")
1941 || self.config.src_base.ends_with("rustdoc-json")
1944 fn make_compile_args(
1947 output_file: TargetLocation,
1948 emit_metadata: EmitMetadata,
1949 allow_unused: AllowUnused,
1951 let is_aux = input_file.components().map(|c| c.as_os_str()).any(|c| c == "auxiliary");
1952 let is_rustdoc = self.is_rustdoc() && !is_aux;
1953 let mut rustc = if !is_rustdoc {
1954 Command::new(&self.config.rustc_path)
1956 Command::new(&self.config.rustdoc_path.clone().expect("no rustdoc built yet"))
1958 rustc.arg(input_file);
1960 // Use a single thread for efficiency and a deterministic error message order
1961 rustc.arg("-Zthreads=1");
1963 // Optionally prevent default --target if specified in test compile-flags.
1964 let custom_target = self.props.compile_flags.iter().any(|x| x.starts_with("--target"));
1968 if self.props.force_host { &*self.config.host } else { &*self.config.target };
1970 rustc.arg(&format!("--target={}", target));
1972 self.set_revision_flags(&mut rustc);
1975 if let Some(ref incremental_dir) = self.props.incremental_dir {
1976 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1977 rustc.args(&["-Z", "incremental-verify-ich"]);
1980 if self.config.mode == CodegenUnits {
1981 rustc.args(&["-Z", "human_readable_cgu_names"]);
1985 match self.config.mode {
1987 // If we are extracting and matching errors in the new
1988 // fashion, then you want JSON mode. Old-skool error
1989 // patterns still match the raw compiler output.
1990 if self.props.error_patterns.is_empty() {
1991 rustc.args(&["--error-format", "json"]);
1993 rustc.arg("-Zui-testing");
1994 rustc.arg("-Zdeduplicate-diagnostics=no");
1997 if !self.props.compile_flags.iter().any(|s| s.starts_with("--error-format")) {
1998 rustc.args(&["--error-format", "json"]);
2000 rustc.arg("-Ccodegen-units=1");
2001 rustc.arg("-Zui-testing");
2002 rustc.arg("-Zdeduplicate-diagnostics=no");
2003 rustc.arg("-Zemit-future-incompat-report");
2009 "-Zmir-opt-level=4",
2011 "-Zdump-mir-exclude-pass-number",
2014 let mir_dump_dir = self.get_mir_dump_dir();
2015 let _ = fs::remove_dir_all(&mir_dump_dir);
2016 create_dir_all(mir_dump_dir.as_path()).unwrap();
2017 let mut dir_opt = "-Zdump-mir-dir=".to_string();
2018 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
2019 debug!("dir_opt: {:?}", dir_opt);
2023 RunPassValgrind | Pretty | DebugInfo | Codegen | Rustdoc | RustdocJson | RunMake
2024 | CodegenUnits | JsDocTest | Assembly => {
2025 // do not use JSON output
2029 if let (false, EmitMetadata::Yes) = (is_rustdoc, emit_metadata) {
2030 rustc.args(&["--emit", "metadata"]);
2034 if self.config.target == "wasm32-unknown-unknown" || self.is_vxworks_pure_static() {
2035 // rustc.arg("-g"); // get any backtrace at all on errors
2036 } else if !self.props.no_prefer_dynamic {
2037 rustc.args(&["-C", "prefer-dynamic"]);
2042 TargetLocation::ThisFile(path) => {
2043 rustc.arg("-o").arg(path);
2045 TargetLocation::ThisDirectory(path) => {
2047 // `rustdoc` uses `-o` for the output directory.
2048 rustc.arg("-o").arg(path);
2050 rustc.arg("--out-dir").arg(path);
2055 match self.config.compare_mode {
2056 Some(CompareMode::Nll) => {
2057 rustc.args(&["-Zborrowck=mir"]);
2059 Some(CompareMode::Polonius) => {
2060 rustc.args(&["-Zpolonius", "-Zborrowck=mir"]);
2062 Some(CompareMode::Chalk) => {
2063 rustc.args(&["-Zchalk"]);
2065 Some(CompareMode::SplitDwarf) => {
2066 rustc.args(&["-Csplit-debuginfo=unpacked", "-Zunstable-options"]);
2068 Some(CompareMode::SplitDwarfSingle) => {
2069 rustc.args(&["-Csplit-debuginfo=packed", "-Zunstable-options"]);
2074 // Add `-A unused` before `config` flags and in-test (`props`) flags, so that they can
2076 if let AllowUnused::Yes = allow_unused {
2077 rustc.args(&["-A", "unused"]);
2080 if self.props.force_host {
2081 self.maybe_add_external_args(
2083 self.split_maybe_args(&self.config.host_rustcflags),
2086 self.maybe_add_external_args(
2088 self.split_maybe_args(&self.config.target_rustcflags),
2091 if let Some(ref linker) = self.config.linker {
2092 rustc.arg(format!("-Clinker={}", linker));
2097 // Use dynamic musl for tests because static doesn't allow creating dylibs
2098 if self.config.host.contains("musl") || self.is_vxworks_pure_dynamic() {
2099 rustc.arg("-Ctarget-feature=-crt-static");
2102 rustc.args(&self.props.compile_flags);
2107 fn make_exe_name(&self) -> PathBuf {
2108 // Using a single letter here to keep the path length down for
2109 // Windows. Some test names get very long. rustc creates `rcgu`
2110 // files with the module name appended to it which can more than
2111 // double the length.
2112 let mut f = self.output_base_dir().join("a");
2113 // FIXME: This is using the host architecture exe suffix, not target!
2114 if self.config.target.contains("emscripten") {
2115 f = f.with_extra_extension("js");
2116 } else if self.config.target.contains("wasm32") {
2117 f = f.with_extra_extension("wasm");
2118 } else if self.config.target.contains("spirv") {
2119 f = f.with_extra_extension("spv");
2120 } else if !env::consts::EXE_SUFFIX.is_empty() {
2121 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2126 fn make_run_args(&self) -> ProcArgs {
2127 // If we've got another tool to run under (valgrind),
2128 // then split apart its command
2129 let mut args = self.split_maybe_args(&self.config.runtool);
2131 // If this is emscripten, then run tests under nodejs
2132 if self.config.target.contains("emscripten") {
2133 if let Some(ref p) = self.config.nodejs {
2134 args.push(p.clone());
2136 self.fatal("no NodeJS binary found (--nodejs)");
2138 // If this is otherwise wasm, then run tests under nodejs with our
2140 } else if self.config.target.contains("wasm32") {
2141 if let Some(ref p) = self.config.nodejs {
2142 args.push(p.clone());
2144 self.fatal("no NodeJS binary found (--nodejs)");
2151 .unwrap() // chop off `ui`
2153 .unwrap() // chop off `test`
2155 .unwrap(); // chop off `src`
2156 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2159 let exe_file = self.make_exe_name();
2161 // FIXME (#9639): This needs to handle non-utf8 paths
2162 args.push(exe_file.to_str().unwrap().to_owned());
2164 // Add the arguments in the run_flags directive
2165 args.extend(self.split_maybe_args(&self.props.run_flags));
2167 let prog = args.remove(0);
2168 ProcArgs { prog, args }
2171 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2176 if s.chars().all(|c| c.is_whitespace()) { None } else { Some(s.to_owned()) }
2183 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2186 // Linux and mac don't require adjusting the library search path
2188 format!("{:?}", command)
2190 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2191 // for diagnostic purposes
2192 fn lib_path_cmd_prefix(path: &str) -> String {
2193 format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
2196 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2200 fn dump_output(&self, out: &str, err: &str) {
2201 let revision = if let Some(r) = self.revision { format!("{}.", r) } else { String::new() };
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 { None } else { self.revision }
2238 /// Gets the absolute path to the directory where all output for the given
2239 /// test/revision should reside.
2240 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2241 fn output_base_dir(&self) -> PathBuf {
2242 output_base_dir(self.config, self.testpaths, self.safe_revision())
2245 /// Gets the absolute path to the base filename used as output for the given
2247 /// E.g., `/.../relative/testname.revision.mode/testname`.
2248 fn output_base_name(&self) -> PathBuf {
2249 output_base_name(self.config, self.testpaths, self.safe_revision())
2252 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2253 if self.config.verbose {
2254 println!("------{}------------------------------", "stdout");
2255 println!("{}", out);
2256 println!("------{}------------------------------", "stderr");
2257 println!("{}", err);
2258 println!("------------------------------------------");
2262 fn error(&self, err: &str) {
2263 match self.revision {
2264 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2265 None => println!("\nerror: {}", err),
2269 fn fatal(&self, err: &str) -> ! {
2271 error!("fatal error, panic: {:?}", err);
2272 panic!("fatal error");
2275 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2277 proc_res.fatal(None, || ());
2280 fn fatal_proc_rec_with_ctx(
2284 on_failure: impl FnOnce(Self),
2287 proc_res.fatal(None, || on_failure(*self));
2290 // codegen tests (using FileCheck)
2292 fn compile_test_and_save_ir(&self) -> ProcRes {
2293 let aux_dir = self.aux_output_dir_name();
2295 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2296 let input_file = &self.testpaths.file;
2298 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2299 rustc.arg("-L").arg(aux_dir).arg("--emit=llvm-ir");
2301 self.compose_and_run_compiler(rustc, None)
2304 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2305 // This works with both `--emit asm` (as default output name for the assembly)
2306 // and `ptx-linker` because the latter can write output at requested location.
2307 let output_path = self.output_base_name().with_extension("s");
2309 let output_file = TargetLocation::ThisFile(output_path.clone());
2310 let input_file = &self.testpaths.file;
2312 self.make_compile_args(input_file, output_file, EmitMetadata::No, AllowUnused::No);
2314 rustc.arg("-L").arg(self.aux_output_dir_name());
2316 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2317 Some("emit-asm") => {
2318 rustc.arg("--emit=asm");
2321 Some("ptx-linker") => {
2322 // No extra flags needed.
2325 Some(_) => self.fatal("unknown 'assembly-output' header"),
2326 None => self.fatal("missing 'assembly-output' header"),
2329 (self.compose_and_run_compiler(rustc, None), output_path)
2332 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2333 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2334 filecheck.arg("--input-file").arg(output).arg(&self.testpaths.file);
2335 // It would be more appropriate to make most of the arguments configurable through
2336 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2339 // For now, though…
2340 let prefix_for_target =
2341 if self.config.target.contains("msvc") { "MSVC" } else { "NONMSVC" };
2342 let prefixes = if let Some(rev) = self.revision {
2343 format!("CHECK,{},{}", prefix_for_target, rev)
2345 format!("CHECK,{}", prefix_for_target)
2347 if self.config.llvm_version.unwrap_or(0) >= 130000 {
2348 filecheck.args(&["--allow-unused-prefixes", "--check-prefixes", &prefixes]);
2350 filecheck.args(&["--check-prefixes", &prefixes]);
2352 self.compose_and_run(filecheck, "", None, None)
2355 fn run_codegen_test(&self) {
2356 if self.config.llvm_filecheck.is_none() {
2357 self.fatal("missing --llvm-filecheck");
2360 let proc_res = self.compile_test_and_save_ir();
2361 if !proc_res.status.success() {
2362 self.fatal_proc_rec("compilation failed!", &proc_res);
2365 let output_path = self.output_base_name().with_extension("ll");
2366 let proc_res = self.verify_with_filecheck(&output_path);
2367 if !proc_res.status.success() {
2368 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2372 fn run_assembly_test(&self) {
2373 if self.config.llvm_filecheck.is_none() {
2374 self.fatal("missing --llvm-filecheck");
2377 let (proc_res, output_path) = self.compile_test_and_save_assembly();
2378 if !proc_res.status.success() {
2379 self.fatal_proc_rec("compilation failed!", &proc_res);
2382 let proc_res = self.verify_with_filecheck(&output_path);
2383 if !proc_res.status.success() {
2384 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2388 fn charset() -> &'static str {
2389 // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset
2390 if cfg!(target_os = "freebsd") { "ISO-8859-1" } else { "UTF-8" }
2393 fn run_rustdoc_test(&self) {
2394 assert!(self.revision.is_none(), "revisions not relevant here");
2396 let out_dir = self.output_base_dir();
2397 let _ = fs::remove_dir_all(&out_dir);
2398 create_dir_all(&out_dir).unwrap();
2400 let proc_res = self.document(&out_dir);
2401 if !proc_res.status.success() {
2402 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2405 if self.props.check_test_line_numbers_match {
2406 self.check_rustdoc_test_option(proc_res);
2408 let root = self.config.find_rust_src_root().unwrap();
2409 let res = self.cmd2procres(
2410 Command::new(&self.config.docck_python)
2411 .arg(root.join("src/etc/htmldocck.py"))
2413 .arg(&self.testpaths.file),
2415 if !res.status.success() {
2416 self.fatal_proc_rec_with_ctx("htmldocck failed!", &res, |mut this| {
2417 this.compare_to_default_rustdoc(&out_dir)
2423 fn compare_to_default_rustdoc(&mut self, out_dir: &Path) {
2424 if !self.config.has_tidy {
2427 println!("info: generating a diff against nightly rustdoc");
2430 self.safe_revision().map_or("nightly".into(), |path| path.to_owned() + "-nightly");
2431 let compare_dir = output_base_dir(self.config, self.testpaths, Some(&suffix));
2432 // Don't give an error if the directory didn't already exist
2433 let _ = fs::remove_dir_all(&compare_dir);
2434 create_dir_all(&compare_dir).unwrap();
2436 // We need to create a new struct for the lifetimes on `config` to work.
2437 let new_rustdoc = TestCx {
2439 // FIXME: use beta or a user-specified rustdoc instead of
2440 // hardcoding the default toolchain
2441 rustdoc_path: Some("rustdoc".into()),
2442 // Needed for building auxiliary docs below
2443 rustc_path: "rustc".into(),
2444 ..self.config.clone()
2449 let output_file = TargetLocation::ThisDirectory(new_rustdoc.aux_output_dir_name());
2450 let mut rustc = new_rustdoc.make_compile_args(
2451 &new_rustdoc.testpaths.file,
2456 rustc.arg("-L").arg(&new_rustdoc.aux_output_dir_name());
2457 new_rustdoc.build_all_auxiliary(&mut rustc);
2459 let proc_res = new_rustdoc.document(&compare_dir);
2460 if !proc_res.status.success() {
2461 eprintln!("failed to run nightly rustdoc");
2468 "--indent-spaces", "2",
2470 "--show-warnings", "no",
2475 let tidy_dir = |dir| {
2476 for entry in walkdir::WalkDir::new(dir) {
2477 let entry = entry.expect("failed to read file");
2478 if entry.file_type().is_file()
2479 && entry.path().extension().and_then(|p| p.to_str()) == Some("html".into())
2482 Command::new("tidy").args(&tidy_args).arg(entry.path()).status().unwrap();
2483 // `tidy` returns 1 if it modified the file.
2484 assert!(status.success() || status.code() == Some(1));
2489 tidy_dir(&compare_dir);
2492 let output = Command::new("git").args(&["config", "--get", "core.pager"]).output().ok();
2493 output.and_then(|out| {
2494 if out.status.success() {
2495 Some(String::from_utf8(out.stdout).expect("invalid UTF8 in git pager"))
2502 let diff_filename = format!("build/tmp/rustdoc-compare-{}.diff", std::process::id());
2505 let mut diff_output = File::create(&diff_filename).unwrap();
2506 let mut wrote_data = false;
2507 for entry in walkdir::WalkDir::new(out_dir) {
2508 let entry = entry.expect("failed to read file");
2509 let extension = entry.path().extension().and_then(|p| p.to_str());
2510 if entry.file_type().is_file()
2511 && (extension == Some("html".into()) || extension == Some("js".into()))
2514 compare_dir.join(entry.path().strip_prefix(&out_dir).unwrap());
2516 if let Ok(s) = std::fs::read(&expected_path) { s } else { continue };
2517 let actual_path = entry.path();
2518 let actual = std::fs::read(&actual_path).unwrap();
2519 let diff = unified_diff::diff(
2521 &expected_path.to_string_lossy(),
2523 &actual_path.to_string_lossy(),
2526 wrote_data |= !diff.is_empty();
2527 diff_output.write_all(&diff).unwrap();
2532 println!("note: diff is identical to nightly rustdoc");
2533 assert!(diff_output.metadata().unwrap().len() == 0);
2535 } else if self.config.verbose {
2536 eprintln!("printing diff:");
2537 let mut buf = Vec::new();
2538 diff_output.read_to_end(&mut buf).unwrap();
2539 std::io::stderr().lock().write_all(&mut buf).unwrap();
2543 match self.config.color {
2544 ColorConfig::AlwaysColor => colored::control::set_override(true),
2545 ColorConfig::NeverColor => colored::control::set_override(false),
2549 if let Some(pager) = pager {
2550 let pager = pager.trim();
2551 if self.config.verbose {
2552 eprintln!("using pager {}", pager);
2554 let output = Command::new(pager)
2555 // disable paging; we want this to be non-interactive
2557 .stdin(File::open(&diff_filename).unwrap())
2558 // Capture output and print it explicitly so it will in turn be
2559 // captured by libtest.
2562 assert!(output.status.success());
2563 println!("{}", String::from_utf8_lossy(&output.stdout));
2564 eprintln!("{}", String::from_utf8_lossy(&output.stderr));
2566 use colored::Colorize;
2567 eprintln!("warning: no pager configured, falling back to unified diff");
2569 "help: try configuring a git pager (e.g. `delta`) with `git config --global core.pager delta`"
2571 let mut out = io::stdout();
2572 let mut diff = BufReader::new(File::open(&diff_filename).unwrap());
2573 let mut line = Vec::new();
2576 match diff.read_until(b'\n', &mut line) {
2579 Err(e) => eprintln!("ERROR: {:?}", e),
2581 match String::from_utf8(line.clone()) {
2583 if line.starts_with("+") {
2584 write!(&mut out, "{}", line.green()).unwrap();
2585 } else if line.starts_with("-") {
2586 write!(&mut out, "{}", line.red()).unwrap();
2587 } else if line.starts_with("@") {
2588 write!(&mut out, "{}", line.blue()).unwrap();
2590 out.write_all(line.as_bytes()).unwrap();
2594 write!(&mut out, "{}", String::from_utf8_lossy(&line).reversed()).unwrap();
2601 fn run_rustdoc_json_test(&self) {
2602 //FIXME: Add bless option.
2604 assert!(self.revision.is_none(), "revisions not relevant here");
2606 let out_dir = self.output_base_dir();
2607 let _ = fs::remove_dir_all(&out_dir);
2608 create_dir_all(&out_dir).unwrap();
2610 let proc_res = self.document(&out_dir);
2611 if !proc_res.status.success() {
2612 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2615 let root = self.config.find_rust_src_root().unwrap();
2616 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2617 json_out.set_extension("json");
2618 let res = self.cmd2procres(
2619 Command::new(self.config.jsondocck_path.as_ref().unwrap())
2621 .arg(root.join(&out_dir))
2623 .arg(&self.testpaths.file),
2626 if !res.status.success() {
2627 self.fatal_proc_rec("jsondocck failed!", &res)
2630 let mut json_out = out_dir.join(self.testpaths.file.file_stem().unwrap());
2631 json_out.set_extension("json");
2632 let res = self.cmd2procres(
2633 Command::new(&self.config.docck_python)
2634 .arg(root.join("src/etc/check_missing_items.py"))
2638 if !res.status.success() {
2639 self.fatal_proc_rec("check_missing_items failed!", &res);
2643 fn get_lines<P: AsRef<Path>>(
2646 mut other_files: Option<&mut Vec<String>>,
2648 let content = fs::read_to_string(&path).unwrap();
2649 let mut ignore = false;
2653 .filter_map(|(line_nb, line)| {
2654 if (line.trim_start().starts_with("pub mod ")
2655 || line.trim_start().starts_with("mod "))
2656 && line.ends_with(';')
2658 if let Some(ref mut other_files) = other_files {
2659 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2663 let sline = line.split("///").last().unwrap_or("");
2664 let line = sline.trim_start();
2665 if line.starts_with("```") {
2681 fn check_rustdoc_test_option(&self, res: ProcRes) {
2682 let mut other_files = Vec::new();
2683 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2684 let cwd = env::current_dir().unwrap();
2689 .unwrap_or(&self.testpaths.file)
2692 .replace('\\', "/"),
2693 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2695 for other_file in other_files {
2696 let mut path = self.testpaths.file.clone();
2697 path.set_file_name(&format!("{}.rs", other_file));
2699 path.strip_prefix(&cwd).unwrap_or(&path).to_str().unwrap().replace('\\', "/"),
2700 self.get_lines(&path, None),
2705 for _ in res.stdout.split('\n').filter(|s| s.starts_with("test ")).inspect(|s| {
2706 if let Some((left, right)) = s.split_once(" - ") {
2707 let path = left.rsplit("test ").next().unwrap();
2708 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2710 let mut iter = right.split("(line ");
2720 if let Ok(pos) = v.binary_search(&line) {
2723 self.fatal_proc_rec(
2724 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2732 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2734 for (entry, v) in &files {
2736 self.fatal_proc_rec(
2738 "Not found test at line{} \"{}\":{:?}",
2739 if v.len() > 1 { "s" } else { "" },
2750 fn run_codegen_units_test(&self) {
2751 assert!(self.revision.is_none(), "revisions not relevant here");
2753 let proc_res = self.compile_test(WillExecute::No, EmitMetadata::No);
2755 if !proc_res.status.success() {
2756 self.fatal_proc_rec("compilation failed!", &proc_res);
2759 self.check_no_compiler_crash(&proc_res, self.props.should_ice);
2761 const PREFIX: &str = "MONO_ITEM ";
2762 const CGU_MARKER: &str = "@@";
2764 let actual: Vec<MonoItem> = proc_res
2767 .filter(|line| line.starts_with(PREFIX))
2768 .map(|line| str_to_mono_item(line, true))
2771 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2773 .map(|e| str_to_mono_item(&e.msg[..], false))
2776 let mut missing = Vec::new();
2777 let mut wrong_cgus = Vec::new();
2779 for expected_item in &expected {
2780 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2782 if let Some(actual_item) = actual_item_with_same_name {
2783 if !expected_item.codegen_units.is_empty() &&
2784 // Also check for codegen units
2785 expected_item.codegen_units != actual_item.codegen_units
2787 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2790 missing.push(expected_item.string.clone());
2794 let unexpected: Vec<_> = actual
2796 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2797 .map(|acgu| acgu.string.clone())
2800 if !missing.is_empty() {
2803 println!("\nThese items should have been contained but were not:\n");
2805 for item in &missing {
2806 println!("{}", item);
2812 if !unexpected.is_empty() {
2814 let mut sorted = unexpected.clone();
2819 println!("\nThese items were contained but should not have been:\n");
2821 for item in sorted {
2822 println!("{}", item);
2828 if !wrong_cgus.is_empty() {
2829 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2830 println!("\nThe following items were assigned to wrong codegen units:\n");
2832 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2833 println!("{}", expected_item.name);
2834 println!(" expected: {}", codegen_units_to_str(&expected_item.codegen_units));
2835 println!(" actual: {}", codegen_units_to_str(&actual_item.codegen_units));
2840 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2844 #[derive(Clone, Eq, PartialEq)]
2847 codegen_units: HashSet<String>,
2851 // [MONO_ITEM] name [@@ (cgu)+]
2852 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2853 let s = if s.starts_with(PREFIX) { (&s[PREFIX.len()..]).trim() } else { s.trim() };
2855 let full_string = format!("{}{}", PREFIX, s);
2857 let parts: Vec<&str> =
2858 s.split(CGU_MARKER).map(str::trim).filter(|s| !s.is_empty()).collect();
2860 let name = parts[0].trim();
2862 let cgus = if parts.len() > 1 {
2863 let cgus_str = parts[1];
2868 .filter(|s| !s.is_empty())
2870 if cgu_has_crate_disambiguator {
2871 remove_crate_disambiguators_from_set_of_cgu_names(s)
2881 MonoItem { name: name.to_owned(), codegen_units: cgus, string: full_string }
2884 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2885 let mut cgus: Vec<_> = cgus.iter().collect();
2888 let mut string = String::new();
2890 string.push_str(&cgu[..]);
2891 string.push_str(" ");
2897 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2898 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2899 // remove all crate-disambiguators.
2900 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2902 static ref RE: Regex =
2903 Regex::new(r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?")
2908 RE.captures(cgu).unwrap_or_else(|| panic!("invalid cgu name encountered: {}", cgu));
2910 let mut new_name = cgu.to_owned();
2912 if let Some(d2) = captures.name("d2") {
2913 new_name.replace_range(d2.start()..d2.end(), "");
2916 let d1 = captures.name("d1").unwrap();
2917 new_name.replace_range(d1.start()..d1.end(), "");
2922 // The name of merged CGUs is constructed as the names of the original
2923 // CGUs joined with "--". This function splits such composite CGU names
2924 // and handles each component individually.
2925 fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String {
2927 .map(|cgu| remove_crate_disambiguator_from_cgu(cgu))
2928 .collect::<Vec<_>>()
2933 fn init_incremental_test(&self) {
2934 // (See `run_incremental_test` for an overview of how incremental tests work.)
2936 // Before any of the revisions have executed, create the
2937 // incremental workproduct directory. Delete any old
2938 // incremental work products that may be there from prior
2940 let incremental_dir = self.incremental_dir();
2941 if incremental_dir.exists() {
2942 // Canonicalizing the path will convert it to the //?/ format
2943 // on Windows, which enables paths longer than 260 character
2944 let canonicalized = incremental_dir.canonicalize().unwrap();
2945 fs::remove_dir_all(canonicalized).unwrap();
2947 fs::create_dir_all(&incremental_dir).unwrap();
2949 if self.config.verbose {
2950 print!("init_incremental_test: incremental_dir={}", incremental_dir.display());
2954 fn run_incremental_test(&self) {
2955 // Basic plan for a test incremental/foo/bar.rs:
2956 // - load list of revisions rpass1, cfail2, rpass3
2957 // - each should begin with `rpass`, `cfail`, or `rfail`
2958 // - if `rpass`, expect compile and execution to succeed
2959 // - if `cfail`, expect compilation to fail
2960 // - if `rfail`, expect execution to fail
2961 // - create a directory build/foo/bar.incremental
2962 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass1
2963 // - because name of revision starts with "rpass", expect success
2964 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C cfail2
2965 // - because name of revision starts with "cfail", expect an error
2966 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2967 // - compile foo/bar.rs with -C incremental=.../foo/bar.incremental and -C rpass3
2968 // - because name of revision starts with "rpass", expect success
2969 // - execute build/foo/bar.exe and save output
2971 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2972 // to #[rustc_dirty] and clean tests I guess
2974 let revision = self.revision.expect("incremental tests require a list of revisions");
2976 // Incremental workproduct directory should have already been created.
2977 let incremental_dir = self.incremental_dir();
2978 assert!(incremental_dir.exists(), "init_incremental_test failed to create incremental dir");
2980 // Add an extra flag pointing at the incremental directory.
2981 let mut revision_props = self.props.clone();
2982 revision_props.incremental_dir = Some(incremental_dir);
2984 let revision_cx = TestCx {
2985 config: self.config,
2986 props: &revision_props,
2987 testpaths: self.testpaths,
2988 revision: self.revision,
2991 if self.config.verbose {
2992 print!("revision={:?} revision_props={:#?}", revision, revision_props);
2995 if revision.starts_with("rpass") {
2996 if revision_cx.props.should_ice {
2997 revision_cx.fatal("can only use should-ice in cfail tests");
2999 revision_cx.run_rpass_test();
3000 } else if revision.starts_with("rfail") {
3001 if revision_cx.props.should_ice {
3002 revision_cx.fatal("can only use should-ice in cfail tests");
3004 revision_cx.run_rfail_test();
3005 } else if revision.starts_with("cfail") {
3006 revision_cx.run_cfail_test();
3008 revision_cx.fatal("revision name must begin with rpass, rfail, or cfail");
3012 /// Directory where incremental work products are stored.
3013 fn incremental_dir(&self) -> PathBuf {
3014 self.output_base_name().with_extension("inc")
3017 fn run_rmake_test(&self) {
3018 let cwd = env::current_dir().unwrap();
3019 let src_root = self.config.src_base.parent().unwrap().parent().unwrap().parent().unwrap();
3020 let src_root = cwd.join(&src_root);
3022 let tmpdir = cwd.join(self.output_base_name());
3023 if tmpdir.exists() {
3024 self.aggressive_rm_rf(&tmpdir).unwrap();
3026 create_dir_all(&tmpdir).unwrap();
3028 let host = &self.config.host;
3029 let make = if host.contains("dragonfly")
3030 || host.contains("freebsd")
3031 || host.contains("netbsd")
3032 || host.contains("openbsd")
3039 let mut cmd = Command::new(make);
3040 cmd.current_dir(&self.testpaths.file)
3041 .stdout(Stdio::piped())
3042 .stderr(Stdio::piped())
3043 .env("TARGET", &self.config.target)
3044 .env("PYTHON", &self.config.docck_python)
3046 .env("RUST_BUILD_STAGE", &self.config.stage_id)
3047 .env("RUSTC", cwd.join(&self.config.rustc_path))
3048 .env("TMPDIR", &tmpdir)
3049 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
3050 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
3051 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
3052 .env("LLVM_COMPONENTS", &self.config.llvm_components)
3053 // We for sure don't want these tests to run in parallel, so make
3054 // sure they don't have access to these vars if we run via `make`
3056 .env_remove("MAKEFLAGS")
3057 .env_remove("MFLAGS")
3058 .env_remove("CARGO_MAKEFLAGS");
3060 if let Some(ref rustdoc) = self.config.rustdoc_path {
3061 cmd.env("RUSTDOC", cwd.join(rustdoc));
3064 if let Some(ref rust_demangler) = self.config.rust_demangler_path {
3065 cmd.env("RUST_DEMANGLER", cwd.join(rust_demangler));
3068 if let Some(ref node) = self.config.nodejs {
3069 cmd.env("NODE", node);
3072 if let Some(ref linker) = self.config.linker {
3073 cmd.env("RUSTC_LINKER", linker);
3076 if let Some(ref clang) = self.config.run_clang_based_tests_with {
3077 cmd.env("CLANG", clang);
3080 if let Some(ref filecheck) = self.config.llvm_filecheck {
3081 cmd.env("LLVM_FILECHECK", filecheck);
3084 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
3085 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
3088 // We don't want RUSTFLAGS set from the outside to interfere with
3089 // compiler flags set in the test cases:
3090 cmd.env_remove("RUSTFLAGS");
3092 // Use dynamic musl for tests because static doesn't allow creating dylibs
3093 if self.config.host.contains("musl") {
3094 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static").env("IS_MUSL_HOST", "1");
3097 if self.config.bless {
3098 cmd.env("RUSTC_BLESS_TEST", "--bless");
3099 // Assume this option is active if the environment variable is "defined", with _any_ value.
3100 // As an example, a `Makefile` can use this option by:
3102 // ifdef RUSTC_BLESS_TEST
3103 // cp "$(TMPDIR)"/actual_something.ext expected_something.ext
3105 // $(DIFF) expected_something.ext "$(TMPDIR)"/actual_something.ext
3109 if self.config.target.contains("msvc") && self.config.cc != "" {
3110 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
3111 // and that `lib.exe` lives next to it.
3112 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
3114 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
3115 // a path and instead passes `C:\msys64\foo`, so convert all
3116 // `/`-arguments to MSVC here to `-` arguments.
3121 .map(|s| s.replace("/", "-"))
3122 .collect::<Vec<_>>()
3125 cmd.env("IS_MSVC", "1")
3126 .env("IS_WINDOWS", "1")
3127 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
3128 .env("CC", format!("'{}' {}", self.config.cc, cflags))
3129 .env("CXX", format!("'{}'", &self.config.cxx));
3131 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
3132 .env("CXX", format!("{} {}", self.config.cxx, self.config.cflags))
3133 .env("AR", &self.config.ar);
3135 if self.config.target.contains("windows") {
3136 cmd.env("IS_WINDOWS", "1");
3140 let output = cmd.spawn().and_then(read2_abbreviated).expect("failed to spawn `make`");
3141 if !output.status.success() {
3143 status: output.status,
3144 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
3145 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
3146 cmdline: format!("{:?}", cmd),
3148 self.fatal_proc_rec("make failed", &res);
3152 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
3153 for e in path.read_dir()? {
3155 let path = entry.path();
3156 if entry.file_type()?.is_dir() {
3157 self.aggressive_rm_rf(&path)?;
3159 // Remove readonly files as well on windows (by default we can't)
3160 fs::remove_file(&path).or_else(|e| {
3161 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
3162 let mut meta = entry.metadata()?.permissions();
3163 meta.set_readonly(false);
3164 fs::set_permissions(&path, meta)?;
3165 fs::remove_file(&path)
3172 fs::remove_dir(path)
3175 fn run_js_doc_test(&self) {
3176 if let Some(nodejs) = &self.config.nodejs {
3177 let out_dir = self.output_base_dir();
3179 self.document(&out_dir);
3181 let root = self.config.find_rust_src_root().unwrap();
3183 self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem");
3184 let res = self.cmd2procres(
3185 Command::new(&nodejs)
3186 .arg(root.join("src/tools/rustdoc-js/tester.js"))
3187 .arg("--doc-folder")
3189 .arg("--crate-name")
3190 .arg(file_stem.replace("-", "_"))
3192 .arg(self.testpaths.file.with_extension("js")),
3194 if !res.status.success() {
3195 self.fatal_proc_rec("rustdoc-js test failed!", &res);
3198 self.fatal("no nodeJS");
3202 fn load_compare_outputs(
3205 output_kind: TestOutput,
3206 explicit_format: bool,
3208 let stderr_bits = format!("{}.stderr", get_pointer_width(&self.config.target));
3209 let (stderr_kind, stdout_kind) = match output_kind {
3210 TestOutput::Compile => (
3212 if self.props.stderr_per_bitwidth { &stderr_bits } else { UI_STDERR }
3216 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT),
3219 let expected_stderr = self.load_expected_output(stderr_kind);
3220 let expected_stdout = self.load_expected_output(stdout_kind);
3222 let normalized_stdout = match output_kind {
3223 TestOutput::Run if self.config.remote_test_client.is_some() => {
3224 // When tests are run using the remote-test-client, the string
3225 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
3226 // is printed to stdout by the client and then captured in the ProcRes,
3227 // so it needs to be removed when comparing the run-pass test execution output
3229 static ref REMOTE_TEST_RE: Regex = Regex::new(
3230 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-]+)+\", waiting for result\n"
3236 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3241 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
3244 let stderr = if explicit_format {
3245 proc_res.stderr.clone()
3247 json::extract_rendered(&proc_res.stderr)
3250 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3253 TestOutput::Compile => {
3254 if !self.props.dont_check_compiler_stdout {
3256 self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3258 if !self.props.dont_check_compiler_stderr {
3260 self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3263 TestOutput::Run => {
3264 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3265 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3271 fn run_ui_test(&self) {
3272 if let Some(FailMode::Build) = self.props.fail_mode {
3273 // Make sure a build-fail test cannot fail due to failing analysis (e.g. typeck).
3274 let pm = Some(PassMode::Check);
3275 let proc_res = self.compile_test_general(WillExecute::No, EmitMetadata::Yes, pm);
3276 self.check_if_test_should_compile(&proc_res, pm);
3279 let pm = self.pass_mode();
3280 let should_run = self.should_run(pm);
3281 let emit_metadata = self.should_emit_metadata(pm);
3282 let proc_res = self.compile_test(should_run, emit_metadata);
3283 self.check_if_test_should_compile(&proc_res, pm);
3285 // if the user specified a format in the ui test
3286 // print the output to the stderr file, otherwise extract
3287 // the rendered error messages from json and print them
3288 let explicit = self.props.compile_flags.iter().any(|s| s.contains("--error-format"));
3290 let expected_fixed = self.load_expected_output(UI_FIXED);
3292 let modes_to_prune = vec![CompareMode::Nll];
3293 self.prune_duplicate_outputs(&modes_to_prune);
3295 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3296 let rustfix_input = json::rustfix_diagnostics_only(&proc_res.stderr);
3298 if self.config.compare_mode.is_some() {
3299 // don't test rustfix with nll right now
3300 } else if self.config.rustfix_coverage {
3301 // Find out which tests have `MachineApplicable` suggestions but are missing
3302 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3304 // This will return an empty `Vec` in case the executed test file has a
3305 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3306 let suggestions = get_suggestions_from_json(
3309 Filter::MachineApplicableOnly,
3311 .unwrap_or_default();
3312 if !suggestions.is_empty()
3313 && !self.props.run_rustfix
3314 && !self.props.rustfix_only_machine_applicable
3316 let mut coverage_file_path = self.config.build_base.clone();
3317 coverage_file_path.push("rustfix_missing_coverage.txt");
3318 debug!("coverage_file_path: {}", coverage_file_path.display());
3320 let mut file = OpenOptions::new()
3323 .open(coverage_file_path.as_path())
3324 .expect("could not create or open file");
3326 if writeln!(file, "{}", self.testpaths.file.display()).is_err() {
3327 panic!("couldn't write to {}", coverage_file_path.display());
3330 } else if self.props.run_rustfix {
3331 // Apply suggestions from rustc to the code itself
3332 let unfixed_code = self.load_expected_output_from_path(&self.testpaths.file).unwrap();
3333 let suggestions = get_suggestions_from_json(
3336 if self.props.rustfix_only_machine_applicable {
3337 Filter::MachineApplicableOnly
3343 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).unwrap_or_else(|e| {
3345 "failed to apply suggestions for {:?} with rustfix: {}",
3346 self.testpaths.file, e
3350 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3351 } else if !expected_fixed.is_empty() {
3353 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3359 println!("To update references, rerun the tests and pass the `--bless` flag");
3360 let relative_path_to_file =
3361 self.testpaths.relative_dir.join(self.testpaths.file.file_name().unwrap());
3363 "To only update this specific test, also pass `--test-args {}`",
3364 relative_path_to_file.display(),
3366 self.fatal_proc_rec(
3367 &format!("{} errors occurred comparing output.", errors),
3372 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3374 if let WillExecute::Yes = should_run {
3375 let proc_res = self.exec_compiled_test();
3376 let run_output_errors = if self.props.check_run_results {
3377 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3381 if run_output_errors > 0 {
3382 self.fatal_proc_rec(
3383 &format!("{} errors occurred comparing run output.", run_output_errors),
3387 if self.should_run_successfully(pm) {
3388 if !proc_res.status.success() {
3389 self.fatal_proc_rec("test run failed!", &proc_res);
3392 if proc_res.status.success() {
3393 self.fatal_proc_rec("test run succeeded!", &proc_res);
3396 if !self.props.error_patterns.is_empty() {
3397 // "// error-pattern" comments
3398 self.check_error_patterns(&proc_res.stderr, &proc_res, pm);
3403 "run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3404 proc_res.status={:?} props.error_patterns={:?}",
3406 self.config.compare_mode,
3409 self.props.error_patterns
3411 if !explicit && self.config.compare_mode.is_none() {
3412 let check_patterns =
3413 should_run == WillExecute::No && !self.props.error_patterns.is_empty();
3415 let check_annotations = !check_patterns || !expected_errors.is_empty();
3418 // "// error-pattern" comments
3419 self.check_error_patterns(&proc_res.stderr, &proc_res, pm);
3422 if check_annotations {
3423 // "//~ERROR comments"
3424 self.check_expected_errors(expected_errors, &proc_res);
3428 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3429 // And finally, compile the fixed code and make sure it both
3430 // succeeds and has no diagnostics.
3431 let mut rustc = self.make_compile_args(
3432 &self.testpaths.file.with_extension(UI_FIXED),
3433 TargetLocation::ThisFile(self.make_exe_name()),
3437 rustc.arg("-L").arg(&self.aux_output_dir_name());
3438 let res = self.compose_and_run_compiler(rustc, None);
3439 if !res.status.success() {
3440 self.fatal_proc_rec("failed to compile fixed code", &res);
3442 if !res.stderr.is_empty() && !self.props.rustfix_only_machine_applicable {
3443 if !json::rustfix_diagnostics_only(&res.stderr).is_empty() {
3444 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3450 fn run_mir_opt_test(&self) {
3451 let pm = self.pass_mode();
3452 let should_run = self.should_run(pm);
3453 let emit_metadata = self.should_emit_metadata(pm);
3454 let proc_res = self.compile_test(should_run, emit_metadata);
3456 if !proc_res.status.success() {
3457 self.fatal_proc_rec("compilation failed!", &proc_res);
3460 self.check_mir_dump();
3462 if let WillExecute::Yes = should_run {
3463 let proc_res = self.exec_compiled_test();
3465 if !proc_res.status.success() {
3466 self.fatal_proc_rec("test run failed!", &proc_res);
3471 fn check_mir_dump(&self) {
3472 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3474 let test_dir = self.testpaths.file.parent().unwrap();
3476 self.testpaths.file.file_stem().unwrap().to_str().unwrap().replace("-", "_");
3478 let mut bit_width = String::new();
3479 if test_file_contents.lines().any(|l| l == "// EMIT_MIR_FOR_EACH_BIT_WIDTH") {
3480 bit_width = format!(".{}", get_pointer_width(&self.config.target));
3483 if self.config.bless {
3485 glob(&format!("{}/{}.*{}.mir", test_dir.display(), test_crate, bit_width)).unwrap()
3487 std::fs::remove_file(e.unwrap()).unwrap();
3490 glob(&format!("{}/{}.*{}.diff", test_dir.display(), test_crate, bit_width)).unwrap()
3492 std::fs::remove_file(e.unwrap()).unwrap();
3496 for l in test_file_contents.lines() {
3497 if l.starts_with("// EMIT_MIR ") {
3498 let test_name = l.trim_start_matches("// EMIT_MIR ").trim();
3499 let mut test_names = test_name.split(' ');
3500 // sometimes we specify two files so that we get a diff between the two files
3501 let test_name = test_names.next().unwrap();
3502 let mut expected_file;
3506 if test_name.ends_with(".diff") {
3507 let trimmed = test_name.trim_end_matches(".diff");
3508 let test_against = format!("{}.after.mir", trimmed);
3509 from_file = format!("{}.before.mir", trimmed);
3510 expected_file = format!("{}{}.diff", trimmed, bit_width);
3512 test_names.next().is_none(),
3513 "two mir pass names specified for MIR diff"
3515 to_file = Some(test_against);
3516 } else if let Some(first_pass) = test_names.next() {
3517 let second_pass = test_names.next().unwrap();
3519 test_names.next().is_none(),
3520 "three mir pass names specified for MIR diff"
3523 format!("{}{}.{}-{}.diff", test_name, bit_width, first_pass, second_pass);
3524 let second_file = format!("{}.{}.mir", test_name, second_pass);
3525 from_file = format!("{}.{}.mir", test_name, first_pass);
3526 to_file = Some(second_file);
3528 let ext_re = Regex::new(r#"(\.(mir|dot|html))$"#).unwrap();
3530 .captures_iter(test_name)
3532 .expect("test_name has an invalid extension");
3533 let extension = cap.get(1).unwrap().as_str();
3534 expected_file = format!(
3536 test_name.trim_end_matches(extension),
3540 from_file = test_name.to_string();
3542 test_names.next().is_none(),
3543 "two mir pass names specified for MIR dump"
3547 if !expected_file.starts_with(&test_crate) {
3548 expected_file = format!("{}.{}", test_crate, expected_file);
3550 let expected_file = test_dir.join(expected_file);
3552 let dumped_string = if let Some(after) = to_file {
3553 self.diff_mir_files(from_file.into(), after.into())
3555 let mut output_file = PathBuf::new();
3556 output_file.push(self.get_mir_dump_dir());
3557 output_file.push(&from_file);
3559 "comparing the contents of: {} with {}",
3560 output_file.display(),
3561 expected_file.display()
3563 if !output_file.exists() {
3565 "Output file `{}` from test does not exist, available files are in `{}`",
3566 output_file.display(),
3567 output_file.parent().unwrap().display()
3570 self.check_mir_test_timestamp(&from_file, &output_file);
3571 let dumped_string = fs::read_to_string(&output_file).unwrap();
3572 self.normalize_output(&dumped_string, &[])
3575 if self.config.bless {
3576 let _ = std::fs::remove_file(&expected_file);
3577 std::fs::write(expected_file, dumped_string.as_bytes()).unwrap();
3579 if !expected_file.exists() {
3581 "Output file `{}` from test does not exist",
3582 expected_file.display()
3585 let expected_string = fs::read_to_string(&expected_file).unwrap();
3586 if dumped_string != expected_string {
3587 print!("{}", write_diff(&expected_string, &dumped_string, 3));
3589 "Actual MIR output differs from expected MIR output {}",
3590 expected_file.display()
3598 fn diff_mir_files(&self, before: PathBuf, after: PathBuf) -> String {
3599 let to_full_path = |path: PathBuf| {
3600 let full = self.get_mir_dump_dir().join(&path);
3603 "the mir dump file for {} does not exist (requested in {})",
3605 self.testpaths.file.display(),
3610 let before = to_full_path(before);
3611 let after = to_full_path(after);
3612 debug!("comparing the contents of: {} with {}", before.display(), after.display());
3613 let before = fs::read_to_string(before).unwrap();
3614 let after = fs::read_to_string(after).unwrap();
3615 let before = self.normalize_output(&before, &[]);
3616 let after = self.normalize_output(&after, &[]);
3617 let mut dumped_string = String::new();
3618 for result in diff::lines(&before, &after) {
3619 use std::fmt::Write;
3621 diff::Result::Left(s) => writeln!(dumped_string, "- {}", s).unwrap(),
3622 diff::Result::Right(s) => writeln!(dumped_string, "+ {}", s).unwrap(),
3623 diff::Result::Both(s, _) => writeln!(dumped_string, " {}", s).unwrap(),
3629 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3630 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3631 let source_file = &self.testpaths.file;
3632 let output_time = t(output_file);
3633 let source_time = t(source_file);
3634 if source_time > output_time {
3635 debug!("source file time: {:?} output file time: {:?}", source_time, output_time);
3637 "test source file `{}` is newer than potentially stale output file `{}`.",
3638 source_file.display(),
3644 fn get_mir_dump_dir(&self) -> PathBuf {
3645 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3646 debug!("input_file: {:?}", self.testpaths.file);
3647 mir_dump_dir.push(&self.testpaths.relative_dir);
3648 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3652 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3653 let cflags = self.props.compile_flags.join(" ");
3654 let json = cflags.contains("--error-format json")
3655 || cflags.contains("--error-format pretty-json")
3656 || cflags.contains("--error-format=json")
3657 || cflags.contains("--error-format=pretty-json")
3658 || cflags.contains("--output-format json")
3659 || cflags.contains("--output-format=json");
3661 let mut normalized = output.to_string();
3663 let mut normalize_path = |from: &Path, to: &str| {
3664 let mut from = from.display().to_string();
3666 from = from.replace("\\", "\\\\");
3668 normalized = normalized.replace(&from, to);
3671 let parent_dir = self.testpaths.file.parent().unwrap();
3672 normalize_path(parent_dir, "$DIR");
3674 // Paths into the libstd/libcore
3685 normalize_path(&src_dir, "$SRC_DIR");
3687 if let Some(virtual_rust_source_base_dir) =
3688 option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR").map(PathBuf::from)
3690 normalize_path(&virtual_rust_source_base_dir.join("library"), "$SRC_DIR");
3693 // Paths into the build directory
3694 let test_build_dir = &self.config.build_base;
3695 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3697 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3698 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3699 // eg. /home/user/rust/build
3700 normalize_path(parent_build_dir, "$BUILD_DIR");
3702 // Paths into lib directory.
3703 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3706 // escaped newlines in json strings should be readable
3707 // in the stderr files. There's no point int being correct,
3708 // since only humans process the stderr files.
3709 // Thus we just turn escaped newlines back into newlines.
3710 normalized = normalized.replace("\\n", "\n");
3713 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3714 // with placeholders as we do not want tests needing updated when compiler source code
3716 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3717 normalized = Regex::new("SRC_DIR(.+):\\d+:\\d+(: \\d+:\\d+)?")
3719 .replace_all(&normalized, "SRC_DIR$1:LL:COL")
3722 normalized = Self::normalize_platform_differences(&normalized);
3723 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3725 // Remove test annotations like `//~ ERROR text` from the output,
3726 // since they duplicate actual errors and make the output hard to read.
3727 // This mirrors the regex in src/tools/tidy/src/style.rs, please update
3728 // both if either are changed.
3730 Regex::new("\\s*//(\\[.*\\])?~.*").unwrap().replace_all(&normalized, "").into_owned();
3732 for rule in custom_rules {
3733 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3734 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3739 /// Normalize output differences across platforms. Generally changes Windows output to be more
3742 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3744 fn normalize_platform_differences(output: &str) -> String {
3746 /// Used to find Windows paths.
3748 /// It's not possible to detect paths in the error messages generally, but this is a
3749 /// decent enough heuristic.
3750 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3752 # Match paths that don't include spaces.
3753 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3755 # If the path starts with a well-known root, then allow spaces.
3756 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3761 let output = output.replace(r"\\", r"\");
3764 .replace_all(&output, |caps: &Captures<'_>| {
3765 println!("{}", &caps[0]);
3766 caps[0].replace(r"\", "/")
3768 .replace("\r\n", "\n")
3771 fn expected_output_path(&self, kind: &str) -> PathBuf {
3773 expected_output_path(&self.testpaths, self.revision, &self.config.compare_mode, kind);
3776 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3777 path = expected_output_path(
3780 &Some(CompareMode::Nll),
3787 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3793 fn load_expected_output(&self, kind: &str) -> String {
3794 let path = self.expected_output_path(kind);
3796 match self.load_expected_output_from_path(&path) {
3798 Err(x) => self.fatal(&x),
3805 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3806 fs::read_to_string(path).map_err(|err| {
3807 format!("failed to load expected output from `{}`: {}", path.display(), err)
3811 fn delete_file(&self, file: &PathBuf) {
3813 // Deleting a nonexistant file would error.
3816 if let Err(e) = fs::remove_file(file) {
3817 self.fatal(&format!("failed to delete `{}`: {}", file.display(), e,));
3821 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3822 if actual == expected {
3826 if !self.config.bless {
3827 if expected.is_empty() {
3828 println!("normalized {}:\n{}\n", kind, actual);
3830 println!("diff of {}:\n", kind);
3831 print!("{}", write_diff(expected, actual, 3));
3835 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3836 let output_file = self
3838 .with_extra_extension(self.revision.unwrap_or(""))
3839 .with_extra_extension(mode)
3840 .with_extra_extension(kind);
3842 let mut files = vec![output_file];
3843 if self.config.bless {
3844 // Delete non-revision .stderr/.stdout file if revisions are used.
3845 // Without this, we'd just generate the new files and leave the old files around.
3846 if self.revision.is_some() {
3848 expected_output_path(self.testpaths, None, &self.config.compare_mode, kind);
3849 self.delete_file(&old);
3851 files.push(expected_output_path(
3854 &self.config.compare_mode,
3859 for output_file in &files {
3860 if actual.is_empty() {
3861 self.delete_file(output_file);
3862 } else if let Err(err) = fs::write(&output_file, &actual) {
3863 self.fatal(&format!(
3864 "failed to write {} to `{}`: {}",
3866 output_file.display(),
3872 println!("\nThe actual {0} differed from the expected {0}.", kind);
3873 for output_file in files {
3874 println!("Actual {} saved to {}", kind, output_file.display());
3876 if self.config.bless { 0 } else { 1 }
3879 fn prune_duplicate_output(&self, mode: CompareMode, kind: &str, canon_content: &str) {
3880 let examined_path = expected_output_path(&self.testpaths, self.revision, &Some(mode), kind);
3882 let examined_content =
3883 self.load_expected_output_from_path(&examined_path).unwrap_or_else(|_| String::new());
3885 if canon_content == examined_content {
3886 self.delete_file(&examined_path);
3890 fn prune_duplicate_outputs(&self, modes: &[CompareMode]) {
3891 if self.config.bless {
3892 for kind in UI_EXTENSIONS {
3893 let canon_comparison_path =
3894 expected_output_path(&self.testpaths, self.revision, &None, kind);
3896 if let Ok(canon) = self.load_expected_output_from_path(&canon_comparison_path) {
3898 self.prune_duplicate_output(mode.clone(), kind, &canon);
3905 fn create_stamp(&self) {
3906 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3907 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3916 pub struct ProcRes {
3924 pub fn fatal(&self, err: Option<&str>, on_failure: impl FnOnce()) -> ! {
3925 if let Some(e) = err {
3926 println!("\nerror: {}", e);
3933 ------------------------------------------\n\
3935 ------------------------------------------\n\
3937 ------------------------------------------\n\
3939 ------------------------------------------\n\
3943 json::extract_rendered(&self.stdout),
3944 json::extract_rendered(&self.stderr),
3947 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3948 // compiletest, which is unnecessary noise.
3949 std::panic::resume_unwind(Box::new(()));
3954 enum TargetLocation {
3956 ThisDirectory(PathBuf),
3964 fn read2_abbreviated(mut child: Child) -> io::Result<Output> {
3965 use crate::read2::read2;
3966 use std::mem::replace;
3968 const HEAD_LEN: usize = 160 * 1024;
3969 const TAIL_LEN: usize = 256 * 1024;
3973 Abbreviated { head: Vec<u8>, skipped: usize, tail: Box<[u8]> },
3977 fn extend(&mut self, data: &[u8]) {
3978 let new_self = match *self {
3979 ProcOutput::Full(ref mut bytes) => {
3980 bytes.extend_from_slice(data);
3981 let new_len = bytes.len();
3982 if new_len <= HEAD_LEN + TAIL_LEN {
3985 let tail = bytes.split_off(new_len - TAIL_LEN).into_boxed_slice();
3986 let head = replace(bytes, Vec::new());
3987 let skipped = new_len - HEAD_LEN - TAIL_LEN;
3988 ProcOutput::Abbreviated { head, skipped, tail }
3990 ProcOutput::Abbreviated { ref mut skipped, ref mut tail, .. } => {
3991 *skipped += data.len();
3992 if data.len() <= TAIL_LEN {
3993 tail[..data.len()].copy_from_slice(data);
3994 tail.rotate_left(data.len());
3996 tail.copy_from_slice(&data[(data.len() - TAIL_LEN)..]);
4004 fn into_bytes(self) -> Vec<u8> {
4006 ProcOutput::Full(bytes) => bytes,
4007 ProcOutput::Abbreviated { mut head, skipped, tail } => {
4008 write!(&mut head, "\n\n<<<<<< SKIPPED {} BYTES >>>>>>\n\n", skipped).unwrap();
4009 head.extend_from_slice(&tail);
4016 let mut stdout = ProcOutput::Full(Vec::new());
4017 let mut stderr = ProcOutput::Full(Vec::new());
4019 drop(child.stdin.take());
4021 child.stdout.take().unwrap(),
4022 child.stderr.take().unwrap(),
4023 &mut |is_stdout, data, _| {
4024 if is_stdout { &mut stdout } else { &mut stderr }.extend(data);
4028 let status = child.wait()?;
4030 Ok(Output { status, stdout: stdout.into_bytes(), stderr: stderr.into_bytes() })