1 // ignore-tidy-filelength
3 use crate::common::{CompareMode, PassMode};
4 use crate::common::{expected_output_path, UI_EXTENSIONS, UI_FIXED, UI_STDERR, UI_STDOUT};
5 use crate::common::{UI_RUN_STDERR, UI_RUN_STDOUT};
6 use crate::common::{output_base_dir, output_base_name, output_testname_unique};
7 use crate::common::{Codegen, CodegenUnits, Rustdoc};
8 use crate::common::{DebugInfoCdb, DebugInfoGdbLldb, DebugInfoGdb, DebugInfoLldb};
9 use crate::common::{CompileFail, Pretty, RunFail, RunPassValgrind};
10 use crate::common::{Config, TestPaths};
11 use crate::common::{Incremental, MirOpt, RunMake, Ui, JsDocTest, Assembly};
13 use crate::errors::{self, Error, ErrorKind};
14 use crate::header::TestProps;
16 use regex::{Captures, Regex};
17 use rustfix::{apply_suggestions, get_suggestions_from_json, Filter};
18 use crate::util::{logv, PathBufExt};
20 use std::collections::hash_map::DefaultHasher;
21 use std::collections::{HashMap, HashSet, VecDeque};
23 use std::ffi::{OsStr, OsString};
25 use std::fs::{self, create_dir_all, File, OpenOptions};
26 use std::hash::{Hash, Hasher};
27 use std::io::prelude::*;
28 use std::io::{self, BufReader};
29 use std::path::{Path, PathBuf};
30 use std::process::{Child, Command, ExitStatus, Output, Stdio};
33 use lazy_static::lazy_static;
36 use crate::extract_gdb_version;
37 use crate::is_android_gdb_target;
43 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
45 const SEM_NOGPFAULTERRORBOX: u32 = 0x0002;
47 fn SetErrorMode(mode: u32) -> u32;
51 static ref LOCK: Mutex<()> = { Mutex::new(()) };
53 // Error mode is a global variable, so lock it so only one thread will change it
54 let _lock = LOCK.lock().unwrap();
56 // Tell Windows to not show any UI on errors (such as terminating abnormally).
57 // This is important for running tests, since some of them use abnormal
58 // termination by design. This mode is inherited by all child processes.
60 let old_mode = SetErrorMode(SEM_NOGPFAULTERRORBOX); // read inherited flags
61 SetErrorMode(old_mode | SEM_NOGPFAULTERRORBOX);
63 SetErrorMode(old_mode);
69 fn disable_error_reporting<F: FnOnce() -> R, R>(f: F) -> R {
73 /// The name of the environment variable that holds dynamic library locations.
74 pub fn dylib_env_var() -> &'static str {
77 } else if cfg!(target_os = "macos") {
79 } else if cfg!(target_os = "haiku") {
86 /// The platform-specific library name
87 pub fn get_lib_name(lib: &str, dylib: bool) -> String {
88 // In some casess (e.g. MUSL), we build a static
89 // library, rather than a dynamic library.
90 // In this case, the only path we can pass
91 // with '--extern-meta' is the '.lib' file
93 return format!("lib{}.rlib", lib);
97 format!("{}.dll", lib)
98 } else if cfg!(target_os = "macos") {
99 format!("lib{}.dylib", lib)
101 format!("lib{}.so", lib)
105 #[derive(Debug, PartialEq)]
112 #[derive(Debug, PartialEq)]
113 pub struct Mismatch {
114 pub line_number: u32,
115 pub lines: Vec<DiffLine>,
119 fn new(line_number: u32) -> Mismatch {
121 line_number: line_number,
127 // Produces a diff between the expected output and actual output.
128 pub fn make_diff(expected: &str, actual: &str, context_size: usize) -> Vec<Mismatch> {
129 let mut line_number = 1;
130 let mut context_queue: VecDeque<&str> = VecDeque::with_capacity(context_size);
131 let mut lines_since_mismatch = context_size + 1;
132 let mut results = Vec::new();
133 let mut mismatch = Mismatch::new(0);
135 for result in diff::lines(expected, actual) {
137 diff::Result::Left(str) => {
138 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
139 results.push(mismatch);
140 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
143 while let Some(line) = context_queue.pop_front() {
144 mismatch.lines.push(DiffLine::Context(line.to_owned()));
147 mismatch.lines.push(DiffLine::Expected(str.to_owned()));
149 lines_since_mismatch = 0;
151 diff::Result::Right(str) => {
152 if lines_since_mismatch >= context_size && lines_since_mismatch > 0 {
153 results.push(mismatch);
154 mismatch = Mismatch::new(line_number - context_queue.len() as u32);
157 while let Some(line) = context_queue.pop_front() {
158 mismatch.lines.push(DiffLine::Context(line.to_owned()));
161 mismatch.lines.push(DiffLine::Resulting(str.to_owned()));
162 lines_since_mismatch = 0;
164 diff::Result::Both(str, _) => {
165 if context_queue.len() >= context_size {
166 let _ = context_queue.pop_front();
169 if lines_since_mismatch < context_size {
170 mismatch.lines.push(DiffLine::Context(str.to_owned()));
171 } else if context_size > 0 {
172 context_queue.push_back(str);
176 lines_since_mismatch += 1;
181 results.push(mismatch);
187 pub fn run(config: Config, testpaths: &TestPaths, revision: Option<&str>) {
188 match &*config.target {
189 "arm-linux-androideabi"
190 | "armv7-linux-androideabi"
191 | "thumbv7neon-linux-androideabi"
192 | "aarch64-linux-android" => {
193 if !config.adb_device_status {
194 panic!("android device not available");
199 // android has its own gdb handling
200 if config.mode == DebugInfoGdb && config.gdb.is_none() {
201 panic!("gdb not available but debuginfo gdb debuginfo test requested");
207 // We're going to be dumping a lot of info. Start on a new line.
210 debug!("running {:?}", testpaths.file.display());
211 let props = TestProps::from_file(&testpaths.file, revision, &config);
219 create_dir_all(&cx.output_base_dir()).unwrap();
221 if config.mode == Incremental {
222 // Incremental tests are special because they cannot be run in
225 !props.revisions.is_empty(),
226 "Incremental tests require revisions."
228 cx.init_incremental_test();
229 for revision in &props.revisions {
230 let revision_props = TestProps::from_file(&testpaths.file, Some(revision), &config);
231 let rev_cx = TestCx {
233 props: &revision_props,
235 revision: Some(revision),
237 rev_cx.run_revision();
246 pub fn compute_stamp_hash(config: &Config) -> String {
247 let mut hash = DefaultHasher::new();
248 config.stage_id.hash(&mut hash);
250 if config.mode == DebugInfoCdb {
251 config.cdb.hash(&mut hash);
254 if config.mode == DebugInfoGdb || config.mode == DebugInfoGdbLldb {
256 None => env::var_os("PATH").hash(&mut hash),
257 Some(ref s) if s.is_empty() => env::var_os("PATH").hash(&mut hash),
258 Some(ref s) => s.hash(&mut hash),
262 if config.mode == DebugInfoLldb || config.mode == DebugInfoGdbLldb {
263 env::var_os("PATH").hash(&mut hash);
264 env::var_os("PYTHONPATH").hash(&mut hash);
267 if let Ui | Incremental | Pretty = config.mode {
268 config.force_pass_mode.hash(&mut hash);
271 format!("{:x}", hash.finish())
274 struct TestCx<'test> {
275 config: &'test Config,
276 props: &'test TestProps,
277 testpaths: &'test TestPaths,
278 revision: Option<&'test str>,
281 struct DebuggerCommands {
282 commands: Vec<String>,
283 check_lines: Vec<String>,
284 breakpoint_lines: Vec<usize>,
297 impl<'test> TestCx<'test> {
298 /// Code executed for each revision in turn (or, if there are no
299 /// revisions, exactly once, with revision == None).
300 fn run_revision(&self) {
301 match self.config.mode {
302 CompileFail => self.run_cfail_test(),
303 RunFail => self.run_rfail_test(),
304 RunPassValgrind => self.run_valgrind_test(),
305 Pretty => self.run_pretty_test(),
306 DebugInfoGdbLldb => {
307 self.run_debuginfo_gdb_test();
308 self.run_debuginfo_lldb_test();
310 DebugInfoCdb => self.run_debuginfo_cdb_test(),
311 DebugInfoGdb => self.run_debuginfo_gdb_test(),
312 DebugInfoLldb => self.run_debuginfo_lldb_test(),
313 Codegen => self.run_codegen_test(),
314 Rustdoc => self.run_rustdoc_test(),
315 CodegenUnits => self.run_codegen_units_test(),
316 Incremental => self.run_incremental_test(),
317 RunMake => self.run_rmake_test(),
318 Ui => self.run_ui_test(),
319 MirOpt => self.run_mir_opt_test(),
320 Assembly => self.run_assembly_test(),
321 JsDocTest => self.run_js_doc_test(),
325 fn pass_mode(&self) -> Option<PassMode> {
326 self.props.pass_mode(self.config)
329 fn should_run_successfully(&self) -> bool {
330 let pass_mode = self.pass_mode();
331 match self.config.mode {
332 Ui => pass_mode == Some(PassMode::Run),
333 mode => panic!("unimplemented for mode {:?}", mode),
337 fn should_compile_successfully(&self) -> bool {
338 match self.config.mode {
339 CompileFail => false,
341 Ui => self.pass_mode().is_some(),
343 let revision = self.revision
344 .expect("incremental tests require a list of revisions");
345 if revision.starts_with("rpass") || revision.starts_with("rfail") {
347 } else if revision.starts_with("cfail") {
348 // FIXME: would be nice if incremental revs could start with "cpass"
349 self.pass_mode().is_some()
351 panic!("revision name must begin with rpass, rfail, or cfail");
354 mode => panic!("unimplemented for mode {:?}", mode),
358 fn check_if_test_should_compile(&self, proc_res: &ProcRes) {
359 if self.should_compile_successfully() {
360 if !proc_res.status.success() {
361 self.fatal_proc_rec("test compilation failed although it shouldn't!", proc_res);
364 if proc_res.status.success() {
366 &format!("{} test compiled successfully!", self.config.mode)[..],
371 self.check_correct_failure_status(proc_res);
375 fn run_cfail_test(&self) {
376 let proc_res = self.compile_test();
377 self.check_if_test_should_compile(&proc_res);
378 self.check_no_compiler_crash(&proc_res);
380 let output_to_check = self.get_output(&proc_res);
381 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
382 if !expected_errors.is_empty() {
383 if !self.props.error_patterns.is_empty() {
384 self.fatal("both error pattern and expected errors specified");
386 self.check_expected_errors(expected_errors, &proc_res);
388 self.check_error_patterns(&output_to_check, &proc_res);
391 self.check_forbid_output(&output_to_check, &proc_res);
394 fn run_rfail_test(&self) {
395 let proc_res = self.compile_test();
397 if !proc_res.status.success() {
398 self.fatal_proc_rec("compilation failed!", &proc_res);
401 let proc_res = self.exec_compiled_test();
403 // The value our Makefile configures valgrind to return on failure
404 const VALGRIND_ERR: i32 = 100;
405 if proc_res.status.code() == Some(VALGRIND_ERR) {
406 self.fatal_proc_rec("run-fail test isn't valgrind-clean!", &proc_res);
409 let output_to_check = self.get_output(&proc_res);
410 self.check_correct_failure_status(&proc_res);
411 self.check_error_patterns(&output_to_check, &proc_res);
414 fn get_output(&self, proc_res: &ProcRes) -> String {
415 if self.props.check_stdout {
416 format!("{}{}", proc_res.stdout, proc_res.stderr)
418 proc_res.stderr.clone()
422 fn check_correct_failure_status(&self, proc_res: &ProcRes) {
423 let expected_status = Some(self.props.failure_status);
424 let received_status = proc_res.status.code();
426 if expected_status != received_status {
429 "Error: expected failure status ({:?}) but received status {:?}.",
430 expected_status, received_status
437 fn run_rpass_test(&self) {
438 let proc_res = self.compile_test();
440 if !proc_res.status.success() {
441 self.fatal_proc_rec("compilation failed!", &proc_res);
444 // FIXME(#41968): Move this check to tidy?
445 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
447 expected_errors.is_empty(),
448 "run-pass tests with expected warnings should be moved to ui/"
451 let proc_res = self.exec_compiled_test();
452 if !proc_res.status.success() {
453 self.fatal_proc_rec("test run failed!", &proc_res);
457 fn run_valgrind_test(&self) {
458 assert!(self.revision.is_none(), "revisions not relevant here");
460 if self.config.valgrind_path.is_none() {
461 assert!(!self.config.force_valgrind);
462 return self.run_rpass_test();
465 let mut proc_res = self.compile_test();
467 if !proc_res.status.success() {
468 self.fatal_proc_rec("compilation failed!", &proc_res);
471 let mut new_config = self.config.clone();
472 new_config.runtool = new_config.valgrind_path.clone();
473 let new_cx = TestCx {
477 proc_res = new_cx.exec_compiled_test();
479 if !proc_res.status.success() {
480 self.fatal_proc_rec("test run failed!", &proc_res);
484 fn run_pretty_test(&self) {
485 if self.props.pp_exact.is_some() {
486 logv(self.config, "testing for exact pretty-printing".to_owned());
490 "testing for converging pretty-printing".to_owned(),
494 let rounds = match self.props.pp_exact {
499 let src = fs::read_to_string(&self.testpaths.file).unwrap();
500 let mut srcs = vec![src];
503 while round < rounds {
507 "pretty-printing round {} revision {:?}",
511 let read_from = if round == 0 {
514 ReadFrom::Stdin(srcs[round].to_owned())
517 let proc_res = self.print_source(read_from,
518 &self.props.pretty_mode);
519 if !proc_res.status.success() {
522 "pretty-printing failed in round {} revision {:?}",
529 let ProcRes { stdout, .. } = proc_res;
534 let mut expected = match self.props.pp_exact {
536 let filepath = self.testpaths.file.parent().unwrap().join(file);
537 fs::read_to_string(&filepath).unwrap()
539 None => srcs[srcs.len() - 2].clone(),
541 let mut actual = srcs[srcs.len() - 1].clone();
543 if self.props.pp_exact.is_some() {
544 // Now we have to care about line endings
545 let cr = "\r".to_owned();
546 actual = actual.replace(&cr, "").to_owned();
547 expected = expected.replace(&cr, "").to_owned();
550 self.compare_source(&expected, &actual);
552 // If we're only making sure that the output matches then just stop here
553 if self.props.pretty_compare_only {
557 // Finally, let's make sure it actually appears to remain valid code
558 let proc_res = self.typecheck_source(actual);
559 if !proc_res.status.success() {
560 self.fatal_proc_rec("pretty-printed source does not typecheck", &proc_res);
563 if !self.props.pretty_expanded {
567 // additionally, run `--pretty expanded` and try to build it.
568 let proc_res = self.print_source(ReadFrom::Path, "expanded");
569 if !proc_res.status.success() {
570 self.fatal_proc_rec("pretty-printing (expanded) failed", &proc_res);
574 stdout: expanded_src,
577 let proc_res = self.typecheck_source(expanded_src);
578 if !proc_res.status.success() {
580 "pretty-printed source (expanded) does not typecheck",
586 fn print_source(&self, read_from: ReadFrom, pretty_type: &str) -> ProcRes {
587 let aux_dir = self.aux_output_dir_name();
588 let input: &str = match read_from {
589 ReadFrom::Stdin(_) => "-",
590 ReadFrom::Path => self.testpaths.file.to_str().unwrap(),
593 let mut rustc = Command::new(&self.config.rustc_path);
596 .args(&["-Z", &format!("unpretty={}", pretty_type)])
597 .args(&["--target", &self.config.target])
600 .args(&self.props.compile_flags)
601 .envs(self.props.exec_env.clone());
602 self.maybe_add_external_args(&mut rustc,
603 self.split_maybe_args(&self.config.target_rustcflags));
605 let src = match read_from {
606 ReadFrom::Stdin(src) => Some(src),
607 ReadFrom::Path => None
610 self.compose_and_run(
612 self.config.compile_lib_path.to_str().unwrap(),
613 Some(aux_dir.to_str().unwrap()),
618 fn compare_source(&self, expected: &str, actual: &str) {
619 if expected != actual {
621 "pretty-printed source does not match expected source\n\
623 ------------------------------------------\n\
625 ------------------------------------------\n\
627 ------------------------------------------\n\
629 ------------------------------------------\n\
636 fn set_revision_flags(&self, cmd: &mut Command) {
637 if let Some(revision) = self.revision {
638 // Normalize revisions to be lowercase and replace `-`s with `_`s.
639 // Otherwise the `--cfg` flag is not valid.
640 let normalized_revision = revision.to_lowercase().replace("-", "_");
641 cmd.args(&["--cfg", &normalized_revision]);
645 fn typecheck_source(&self, src: String) -> ProcRes {
646 let mut rustc = Command::new(&self.config.rustc_path);
648 let out_dir = self.output_base_name().with_extension("pretty-out");
649 let _ = fs::remove_dir_all(&out_dir);
650 create_dir_all(&out_dir).unwrap();
652 let target = if self.props.force_host {
658 let aux_dir = self.aux_output_dir_name();
665 .arg(&format!("--target={}", target))
667 .arg(&self.config.build_base)
670 self.set_revision_flags(&mut rustc);
671 self.maybe_add_external_args(&mut rustc,
672 self.split_maybe_args(&self.config.target_rustcflags));
673 rustc.args(&self.props.compile_flags);
675 self.compose_and_run_compiler(rustc, Some(src))
678 fn run_debuginfo_cdb_test(&self) {
679 assert!(self.revision.is_none(), "revisions not relevant here");
681 let config = Config {
682 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
683 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
685 ..self.config.clone()
688 let test_cx = TestCx {
693 test_cx.run_debuginfo_cdb_test_no_opt();
696 fn run_debuginfo_cdb_test_no_opt(&self) {
697 // compile test file (it should have 'compile-flags:-g' in the header)
698 let compile_result = self.compile_test();
699 if !compile_result.status.success() {
700 self.fatal_proc_rec("compilation failed!", &compile_result);
703 let exe_file = self.make_exe_name();
706 static PREFIXES: &'static [&'static str] = &["cdb", "cdbg"];
707 // No "native rust support" variation for CDB yet.
711 // Parse debugger commands etc from test files
712 let DebuggerCommands {
717 } = self.parse_debugger_commands(prefixes);
719 // https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/debugger-commands
720 let mut script_str = String::with_capacity(2048);
721 script_str.push_str("version\n"); // List CDB (and more) version info in test output
722 script_str.push_str(".nvlist\n"); // List loaded `*.natvis` files, bulk of custom MSVC debug
724 // Set breakpoints on every line that contains the string "#break"
725 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
726 for line in &breakpoint_lines {
727 script_str.push_str(&format!(
729 source_file_name, line
733 // Append the other `cdb-command:`s
734 for line in &commands {
735 script_str.push_str(line);
736 script_str.push_str("\n");
739 script_str.push_str("\nqq\n"); // Quit the debugger (including remote debugger, if any)
741 // Write the script into a file
742 debug!("script_str = {}", script_str);
743 self.dump_output_file(&script_str, "debugger.script");
744 let debugger_script = self.make_out_name("debugger.script");
746 let cdb_path = &self.config.cdb.as_ref().unwrap();
747 let mut cdb = Command::new(cdb_path);
749 .arg("-lines") // Enable source line debugging.
750 .arg("-cf").arg(&debugger_script)
753 let debugger_run_result = self.compose_and_run(
755 self.config.run_lib_path.to_str().unwrap(),
760 if !debugger_run_result.status.success() {
761 self.fatal_proc_rec("Error while running CDB", &debugger_run_result);
764 self.check_debugger_output(&debugger_run_result, &check_lines);
767 fn run_debuginfo_gdb_test(&self) {
768 assert!(self.revision.is_none(), "revisions not relevant here");
770 let config = Config {
771 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
772 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
774 ..self.config.clone()
777 let test_cx = TestCx {
782 test_cx.run_debuginfo_gdb_test_no_opt();
785 fn run_debuginfo_gdb_test_no_opt(&self) {
786 let prefixes = if self.config.gdb_native_rust {
788 static PREFIXES: &'static [&'static str] = &["gdb", "gdbr"];
789 println!("NOTE: compiletest thinks it is using GDB with native rust support");
793 static PREFIXES: &'static [&'static str] = &["gdb", "gdbg"];
794 println!("NOTE: compiletest thinks it is using GDB without native rust support");
798 let DebuggerCommands {
802 } = self.parse_debugger_commands(prefixes);
803 let mut cmds = commands.join("\n");
805 // compile test file (it should have 'compile-flags:-g' in the header)
806 let compiler_run_result = self.compile_test();
807 if !compiler_run_result.status.success() {
808 self.fatal_proc_rec("compilation failed!", &compiler_run_result);
811 let exe_file = self.make_exe_name();
813 let debugger_run_result;
814 if is_android_gdb_target(&self.config.target) {
815 cmds = cmds.replace("run", "continue");
817 let tool_path = match self.config.android_cross_path.to_str() {
818 Some(x) => x.to_owned(),
819 None => self.fatal("cannot find android cross path"),
822 // write debugger script
823 let mut script_str = String::with_capacity(2048);
824 script_str.push_str(&format!("set charset {}\n", Self::charset()));
825 script_str.push_str(&format!("set sysroot {}\n", tool_path));
826 script_str.push_str(&format!("file {}\n", exe_file.to_str().unwrap()));
827 script_str.push_str("target remote :5039\n");
828 script_str.push_str(&format!(
829 "set solib-search-path \
830 ./{}/stage2/lib/rustlib/{}/lib/\n",
831 self.config.host, self.config.target
833 for line in &breakpoint_lines {
837 self.testpaths.file.file_name().unwrap().to_string_lossy(),
842 script_str.push_str(&cmds);
843 script_str.push_str("\nquit\n");
845 debug!("script_str = {}", script_str);
846 self.dump_output_file(&script_str, "debugger.script");
848 let adb_path = &self.config.adb_path;
850 Command::new(adb_path)
853 .arg(&self.config.adb_test_dir)
855 .expect(&format!("failed to exec `{:?}`", adb_path));
857 Command::new(adb_path)
858 .args(&["forward", "tcp:5039", "tcp:5039"])
860 .expect(&format!("failed to exec `{:?}`", adb_path));
862 let adb_arg = format!(
863 "export LD_LIBRARY_PATH={}; \
864 gdbserver{} :5039 {}/{}",
865 self.config.adb_test_dir.clone(),
866 if self.config.target.contains("aarch64") {
871 self.config.adb_test_dir.clone(),
872 exe_file.file_name().unwrap().to_str().unwrap()
875 debug!("adb arg: {}", adb_arg);
876 let mut adb = Command::new(adb_path)
877 .args(&["shell", &adb_arg])
878 .stdout(Stdio::piped())
879 .stderr(Stdio::inherit())
881 .expect(&format!("failed to exec `{:?}`", adb_path));
883 // Wait for the gdbserver to print out "Listening on port ..."
884 // at which point we know that it's started and then we can
885 // execute the debugger below.
886 let mut stdout = BufReader::new(adb.stdout.take().unwrap());
887 let mut line = String::new();
890 stdout.read_line(&mut line).unwrap();
891 if line.starts_with("Listening on port 5039") {
897 let mut debugger_script = OsString::from("-command=");
898 debugger_script.push(self.make_out_name("debugger.script"));
899 let debugger_opts: &[&OsStr] = &[
906 let gdb_path = self.config.gdb.as_ref().unwrap();
911 } = Command::new(&gdb_path)
914 .expect(&format!("failed to exec `{:?}`", gdb_path));
916 let mut gdb = Command::new(&format!("{}-gdb", self.config.target));
917 gdb.args(debugger_opts);
918 let cmdline = self.make_cmdline(&gdb, "");
919 logv(self.config, format!("executing {}", cmdline));
923 debugger_run_result = ProcRes {
925 stdout: String::from_utf8(stdout).unwrap(),
926 stderr: String::from_utf8(stderr).unwrap(),
929 if adb.kill().is_err() {
930 println!("Adb process is already finished.");
933 let rust_src_root = self
935 .find_rust_src_root()
936 .expect("Could not find Rust source root");
937 let rust_pp_module_rel_path = Path::new("./src/etc");
938 let rust_pp_module_abs_path = rust_src_root
939 .join(rust_pp_module_rel_path)
943 // write debugger script
944 let mut script_str = String::with_capacity(2048);
945 script_str.push_str(&format!("set charset {}\n", Self::charset()));
946 script_str.push_str("show version\n");
948 match self.config.gdb_version {
951 "NOTE: compiletest thinks it is using GDB version {}",
955 if version > extract_gdb_version("7.4").unwrap() {
956 // Add the directory containing the pretty printers to
957 // GDB's script auto loading safe path
958 script_str.push_str(&format!(
959 "add-auto-load-safe-path {}\n",
960 rust_pp_module_abs_path.replace(r"\", r"\\")
966 "NOTE: compiletest does not know which version of \
972 // The following line actually doesn't have to do anything with
973 // pretty printing, it just tells GDB to print values on one line:
974 script_str.push_str("set print pretty off\n");
976 // Add the pretty printer directory to GDB's source-file search path
977 script_str.push_str(&format!("directory {}\n", rust_pp_module_abs_path));
979 // Load the target executable
980 script_str.push_str(&format!(
982 exe_file.to_str().unwrap().replace(r"\", r"\\")
985 // Force GDB to print values in the Rust format.
986 if self.config.gdb_native_rust {
987 script_str.push_str("set language rust\n");
990 // Add line breakpoints
991 for line in &breakpoint_lines {
992 script_str.push_str(&format!(
994 self.testpaths.file.file_name().unwrap().to_string_lossy(),
999 script_str.push_str(&cmds);
1000 script_str.push_str("\nquit\n");
1002 debug!("script_str = {}", script_str);
1003 self.dump_output_file(&script_str, "debugger.script");
1005 let mut debugger_script = OsString::from("-command=");
1006 debugger_script.push(self.make_out_name("debugger.script"));
1008 let debugger_opts: &[&OsStr] = &[
1015 let mut gdb = Command::new(self.config.gdb.as_ref().unwrap());
1016 gdb.args(debugger_opts)
1017 .env("PYTHONPATH", rust_pp_module_abs_path);
1019 debugger_run_result = self.compose_and_run(
1021 self.config.run_lib_path.to_str().unwrap(),
1027 if !debugger_run_result.status.success() {
1028 self.fatal_proc_rec("gdb failed to execute", &debugger_run_result);
1031 self.check_debugger_output(&debugger_run_result, &check_lines);
1034 fn run_debuginfo_lldb_test(&self) {
1035 assert!(self.revision.is_none(), "revisions not relevant here");
1037 if self.config.lldb_python_dir.is_none() {
1038 self.fatal("Can't run LLDB test because LLDB's python path is not set.");
1041 let config = Config {
1042 target_rustcflags: self.cleanup_debug_info_options(&self.config.target_rustcflags),
1043 host_rustcflags: self.cleanup_debug_info_options(&self.config.host_rustcflags),
1044 mode: DebugInfoLldb,
1045 ..self.config.clone()
1048 let test_cx = TestCx {
1053 test_cx.run_debuginfo_lldb_test_no_opt();
1056 fn run_debuginfo_lldb_test_no_opt(&self) {
1057 // compile test file (it should have 'compile-flags:-g' in the header)
1058 let compile_result = self.compile_test();
1059 if !compile_result.status.success() {
1060 self.fatal_proc_rec("compilation failed!", &compile_result);
1063 let exe_file = self.make_exe_name();
1065 match self.config.lldb_version {
1066 Some(ref version) => {
1068 "NOTE: compiletest thinks it is using LLDB version {}",
1074 "NOTE: compiletest does not know which version of \
1080 let prefixes = if self.config.lldb_native_rust {
1081 static PREFIXES: &'static [&'static str] = &["lldb", "lldbr"];
1082 println!("NOTE: compiletest thinks it is using LLDB with native rust support");
1085 static PREFIXES: &'static [&'static str] = &["lldb", "lldbg"];
1086 println!("NOTE: compiletest thinks it is using LLDB without native rust support");
1090 // Parse debugger commands etc from test files
1091 let DebuggerCommands {
1096 } = self.parse_debugger_commands(prefixes);
1098 // Write debugger script:
1099 // We don't want to hang when calling `quit` while the process is still running
1100 let mut script_str = String::from("settings set auto-confirm true\n");
1102 // Make LLDB emit its version, so we have it documented in the test output
1103 script_str.push_str("version\n");
1105 // Switch LLDB into "Rust mode"
1106 let rust_src_root = self
1108 .find_rust_src_root()
1109 .expect("Could not find Rust source root");
1110 let rust_pp_module_rel_path = Path::new("./src/etc/lldb_rust_formatters.py");
1111 let rust_pp_module_abs_path = rust_src_root
1112 .join(rust_pp_module_rel_path)
1118 .push_str(&format!("command script import {}\n", &rust_pp_module_abs_path[..])[..]);
1119 script_str.push_str("type summary add --no-value ");
1120 script_str.push_str("--python-function lldb_rust_formatters.print_val ");
1121 script_str.push_str("-x \".*\" --category Rust\n");
1122 script_str.push_str("type category enable Rust\n");
1124 // Set breakpoints on every line that contains the string "#break"
1125 let source_file_name = self.testpaths.file.file_name().unwrap().to_string_lossy();
1126 for line in &breakpoint_lines {
1127 script_str.push_str(&format!(
1128 "breakpoint set --file '{}' --line {}\n",
1129 source_file_name, line
1133 // Append the other commands
1134 for line in &commands {
1135 script_str.push_str(line);
1136 script_str.push_str("\n");
1139 // Finally, quit the debugger
1140 script_str.push_str("\nquit\n");
1142 // Write the script into a file
1143 debug!("script_str = {}", script_str);
1144 self.dump_output_file(&script_str, "debugger.script");
1145 let debugger_script = self.make_out_name("debugger.script");
1147 // Let LLDB execute the script via lldb_batchmode.py
1148 let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root);
1150 if !debugger_run_result.status.success() {
1151 self.fatal_proc_rec("Error while running LLDB", &debugger_run_result);
1154 self.check_debugger_output(&debugger_run_result, &check_lines);
1159 test_executable: &Path,
1160 debugger_script: &Path,
1161 rust_src_root: &Path,
1163 // Prepare the lldb_batchmode which executes the debugger script
1164 let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py");
1166 Command::new(&self.config.lldb_python)
1167 .arg(&lldb_script_path)
1168 .arg(test_executable)
1169 .arg(debugger_script)
1170 .env("PYTHONPATH", self.config.lldb_python_dir.as_ref().unwrap()),
1174 fn cmd2procres(&self, cmd: &mut Command) -> ProcRes {
1175 let (status, out, err) = match cmd.output() {
1182 String::from_utf8(stdout).unwrap(),
1183 String::from_utf8(stderr).unwrap(),
1185 Err(e) => self.fatal(&format!(
1186 "Failed to setup Python process for \
1192 self.dump_output(&out, &err);
1197 cmdline: format!("{:?}", cmd),
1201 fn parse_debugger_commands(&self, debugger_prefixes: &[&str]) -> DebuggerCommands {
1202 let directives = debugger_prefixes
1204 .map(|prefix| (format!("{}-command", prefix), format!("{}-check", prefix)))
1205 .collect::<Vec<_>>();
1207 let mut breakpoint_lines = vec![];
1208 let mut commands = vec![];
1209 let mut check_lines = vec![];
1210 let mut counter = 1;
1211 let reader = BufReader::new(File::open(&self.testpaths.file).unwrap());
1212 for line in reader.lines() {
1215 let line = if line.starts_with("//") {
1216 line[2..].trim_start()
1221 if line.contains("#break") {
1222 breakpoint_lines.push(counter);
1225 for &(ref command_directive, ref check_directive) in &directives {
1227 .parse_name_value_directive(&line, command_directive)
1228 .map(|cmd| commands.push(cmd));
1231 .parse_name_value_directive(&line, check_directive)
1232 .map(|cmd| check_lines.push(cmd));
1235 Err(e) => self.fatal(&format!("Error while parsing debugger commands: {}", e)),
1247 fn cleanup_debug_info_options(&self, options: &Option<String>) -> Option<String> {
1248 if options.is_none() {
1252 // Remove options that are either unwanted (-O) or may lead to duplicates due to RUSTFLAGS.
1253 let options_to_remove = ["-O".to_owned(), "-g".to_owned(), "--debuginfo".to_owned()];
1254 let new_options = self
1255 .split_maybe_args(options)
1257 .filter(|x| !options_to_remove.contains(x))
1258 .collect::<Vec<String>>();
1260 Some(new_options.join(" "))
1263 fn maybe_add_external_args(&self, cmd: &mut Command, args: Vec<String>) {
1264 // Filter out the arguments that should not be added by runtest here.
1266 // Notable use-cases are: do not add our optimisation flag if
1267 // `compile-flags: -Copt-level=x` and similar for debug-info level as well.
1268 const OPT_FLAGS: &[&str] = &["-O", "-Copt-level=", /*-C<space>*/"opt-level="];
1269 const DEBUG_FLAGS: &[&str] = &["-g", "-Cdebuginfo=", /*-C<space>*/"debuginfo="];
1271 // FIXME: ideally we would "just" check the `cmd` itself, but it does not allow inspecting
1272 // its arguments. They need to be collected separately. For now I cannot be bothered to
1273 // implement this the "right" way.
1274 let have_opt_flag = self.props.compile_flags.iter().any(|arg| {
1275 OPT_FLAGS.iter().any(|f| arg.starts_with(f))
1277 let have_debug_flag = self.props.compile_flags.iter().any(|arg| {
1278 DEBUG_FLAGS.iter().any(|f| arg.starts_with(f))
1282 if OPT_FLAGS.iter().any(|f| arg.starts_with(f)) && have_opt_flag {
1285 if DEBUG_FLAGS.iter().any(|f| arg.starts_with(f)) && have_debug_flag {
1292 fn check_debugger_output(&self, debugger_run_result: &ProcRes, check_lines: &[String]) {
1293 let num_check_lines = check_lines.len();
1295 let mut check_line_index = 0;
1296 for line in debugger_run_result.stdout.lines() {
1297 if check_line_index >= num_check_lines {
1301 if check_single_line(line, &(check_lines[check_line_index])[..]) {
1302 check_line_index += 1;
1305 if check_line_index != num_check_lines && num_check_lines > 0 {
1306 self.fatal_proc_rec(
1308 "line not found in debugger output: {}",
1309 check_lines[check_line_index]
1311 debugger_run_result,
1315 fn check_single_line(line: &str, check_line: &str) -> bool {
1316 // Allow check lines to leave parts unspecified (e.g., uninitialized
1317 // bits in the wrong case of an enum) with the notation "[...]".
1318 let line = line.trim();
1319 let check_line = check_line.trim();
1320 let can_start_anywhere = check_line.starts_with("[...]");
1321 let can_end_anywhere = check_line.ends_with("[...]");
1323 let check_fragments: Vec<&str> = check_line
1325 .filter(|frag| !frag.is_empty())
1327 if check_fragments.is_empty() {
1331 let (mut rest, first_fragment) = if can_start_anywhere {
1332 match line.find(check_fragments[0]) {
1333 Some(pos) => (&line[pos + check_fragments[0].len()..], 1),
1334 None => return false,
1340 for current_fragment in &check_fragments[first_fragment..] {
1341 match rest.find(current_fragment) {
1343 rest = &rest[pos + current_fragment.len()..];
1345 None => return false,
1349 if !can_end_anywhere && !rest.is_empty() {
1357 fn check_error_patterns(&self, output_to_check: &str, proc_res: &ProcRes) {
1358 debug!("check_error_patterns");
1359 if self.props.error_patterns.is_empty() {
1360 if self.pass_mode().is_some() {
1363 self.fatal(&format!(
1364 "no error pattern specified in {:?}",
1365 self.testpaths.file.display()
1370 let mut missing_patterns: Vec<String> = Vec::new();
1372 for pattern in &self.props.error_patterns {
1373 if output_to_check.contains(pattern.trim()) {
1374 debug!("found error pattern {}", pattern);
1376 missing_patterns.push(pattern.to_string());
1380 if missing_patterns.is_empty() {
1384 if missing_patterns.len() == 1 {
1385 self.fatal_proc_rec(
1386 &format!("error pattern '{}' not found!", missing_patterns[0]),
1390 for pattern in missing_patterns {
1391 self.error(&format!("error pattern '{}' not found!", pattern));
1393 self.fatal_proc_rec("multiple error patterns not found", proc_res);
1397 fn check_no_compiler_crash(&self, proc_res: &ProcRes) {
1398 match proc_res.status.code() {
1399 Some(101) => self.fatal_proc_rec("compiler encountered internal error", proc_res),
1400 None => self.fatal_proc_rec("compiler terminated by signal", proc_res),
1405 fn check_forbid_output(&self, output_to_check: &str, proc_res: &ProcRes) {
1406 for pat in &self.props.forbid_output {
1407 if output_to_check.contains(pat) {
1408 self.fatal_proc_rec("forbidden pattern found in compiler output", proc_res);
1413 fn check_expected_errors(&self, expected_errors: Vec<errors::Error>, proc_res: &ProcRes) {
1414 debug!("check_expected_errors: expected_errors={:?} proc_res.status={:?}",
1415 expected_errors, proc_res.status);
1416 if proc_res.status.success()
1419 .any(|x| x.kind == Some(ErrorKind::Error))
1421 self.fatal_proc_rec("process did not return an error status", proc_res);
1424 // On Windows, keep all '\' path separators to match the paths reported in the JSON output
1425 // from the compiler
1426 let os_file_name = self.testpaths.file.display().to_string();
1428 // on windows, translate all '\' path separators to '/'
1429 let file_name = format!("{}", self.testpaths.file.display()).replace(r"\", "/");
1431 // If the testcase being checked contains at least one expected "help"
1432 // message, then we'll ensure that all "help" messages are expected.
1433 // Otherwise, all "help" messages reported by the compiler will be ignored.
1434 // This logic also applies to "note" messages.
1435 let expect_help = expected_errors
1437 .any(|ee| ee.kind == Some(ErrorKind::Help));
1438 let expect_note = expected_errors
1440 .any(|ee| ee.kind == Some(ErrorKind::Note));
1442 // Parse the JSON output from the compiler and extract out the messages.
1443 let actual_errors = json::parse_output(&os_file_name, &proc_res.stderr, proc_res);
1444 let mut unexpected = Vec::new();
1445 let mut found = vec![false; expected_errors.len()];
1446 for actual_error in &actual_errors {
1447 let opt_index = expected_errors.iter().enumerate().position(
1448 |(index, expected_error)| {
1449 !found[index] && actual_error.line_num == expected_error.line_num
1450 && (expected_error.kind.is_none()
1451 || actual_error.kind == expected_error.kind)
1452 && actual_error.msg.contains(&expected_error.msg)
1458 // found a match, everybody is happy
1459 assert!(!found[index]);
1460 found[index] = true;
1464 if self.is_unexpected_compiler_message(actual_error, expect_help, expect_note) {
1465 self.error(&format!(
1466 "{}:{}: unexpected {}: '{}'",
1468 actual_error.line_num,
1472 .map_or(String::from("message"), |k| k.to_string()),
1475 unexpected.push(actual_error);
1481 let mut not_found = Vec::new();
1482 // anything not yet found is a problem
1483 for (index, expected_error) in expected_errors.iter().enumerate() {
1485 self.error(&format!(
1486 "{}:{}: expected {} not found: {}",
1488 expected_error.line_num,
1492 .map_or("message".into(), |k| k.to_string()),
1495 not_found.push(expected_error);
1499 if !unexpected.is_empty() || !not_found.is_empty() {
1500 self.error(&format!(
1501 "{} unexpected errors found, {} expected errors not found",
1505 println!("status: {}\ncommand: {}", proc_res.status, proc_res.cmdline);
1506 if !unexpected.is_empty() {
1507 println!("unexpected errors (from JSON output): {:#?}\n", unexpected);
1509 if !not_found.is_empty() {
1510 println!("not found errors (from test file): {:#?}\n", not_found);
1516 /// Returns `true` if we should report an error about `actual_error`,
1517 /// which did not match any of the expected error. We always require
1518 /// errors/warnings to be explicitly listed, but only require
1519 /// helps/notes if there are explicit helps/notes given.
1520 fn is_unexpected_compiler_message(
1522 actual_error: &Error,
1526 match actual_error.kind {
1527 Some(ErrorKind::Help) => expect_help,
1528 Some(ErrorKind::Note) => expect_note,
1529 Some(ErrorKind::Error) | Some(ErrorKind::Warning) => true,
1530 Some(ErrorKind::Suggestion) | None => false,
1534 fn compile_test(&self) -> ProcRes {
1535 // Only use `make_exe_name` when the test ends up being executed.
1536 let will_execute = match self.config.mode {
1537 Ui => self.should_run_successfully(),
1538 Incremental => self.revision.unwrap().starts_with("r"),
1539 RunFail | RunPassValgrind | MirOpt |
1540 DebugInfoCdb | DebugInfoGdbLldb | DebugInfoGdb | DebugInfoLldb => true,
1543 let output_file = if will_execute {
1544 TargetLocation::ThisFile(self.make_exe_name())
1546 TargetLocation::ThisDirectory(self.output_base_dir())
1549 let mut rustc = self.make_compile_args(&self.testpaths.file, output_file);
1551 rustc.arg("-L").arg(&self.aux_output_dir_name());
1553 match self.config.mode {
1554 CompileFail | Ui => {
1555 // compile-fail and ui tests tend to have tons of unused code as
1556 // it's just testing various pieces of the compile, but we don't
1557 // want to actually assert warnings about all this code. Instead
1558 // let's just ignore unused code warnings by defaults and tests
1559 // can turn it back on if needed.
1560 if !self.config.src_base.ends_with("rustdoc-ui") &&
1561 // Note that we don't call pass_mode() here as we don't want
1562 // to set unused to allow if we've overriden the pass mode
1563 // via command line flags.
1564 self.props.local_pass_mode() != Some(PassMode::Run) {
1565 rustc.args(&["-A", "unused"]);
1571 self.compose_and_run_compiler(rustc, None)
1574 fn document(&self, out_dir: &Path) -> ProcRes {
1575 if self.props.build_aux_docs {
1576 for rel_ab in &self.props.aux_builds {
1577 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1580 .from_aux_file(&aux_testpaths.file, self.revision, self.config);
1581 let aux_cx = TestCx {
1582 config: self.config,
1584 testpaths: &aux_testpaths,
1585 revision: self.revision,
1587 // Create the directory for the stdout/stderr files.
1588 create_dir_all(aux_cx.output_base_dir()).unwrap();
1589 let auxres = aux_cx.document(out_dir);
1590 if !auxres.status.success() {
1596 let aux_dir = self.aux_output_dir_name();
1598 let rustdoc_path = self
1602 .expect("--rustdoc-path passed");
1603 let mut rustdoc = Command::new(rustdoc_path);
1607 .arg(self.config.run_lib_path.to_str().unwrap())
1612 .arg(&self.testpaths.file)
1613 .args(&self.props.compile_flags);
1615 if let Some(ref linker) = self.config.linker {
1616 rustdoc.arg(format!("-Clinker={}", linker));
1619 self.compose_and_run_compiler(rustdoc, None)
1622 fn exec_compiled_test(&self) -> ProcRes {
1623 let env = &self.props.exec_env;
1625 let proc_res = match &*self.config.target {
1626 // This is pretty similar to below, we're transforming:
1628 // program arg1 arg2
1632 // remote-test-client run program:support-lib.so arg1 arg2
1634 // The test-client program will upload `program` to the emulator
1635 // along with all other support libraries listed (in this case
1636 // `support-lib.so`. It will then execute the program on the
1637 // emulator with the arguments specified (in the environment we give
1638 // the process) and then report back the same result.
1639 _ if self.config.remote_test_client.is_some() => {
1640 let aux_dir = self.aux_output_dir_name();
1641 let ProcArgs { mut prog, args } = self.make_run_args();
1642 if let Ok(entries) = aux_dir.read_dir() {
1643 for entry in entries {
1644 let entry = entry.unwrap();
1645 if !entry.path().is_file() {
1649 prog.push_str(entry.path().to_str().unwrap());
1652 let mut test_client =
1653 Command::new(self.config.remote_test_client.as_ref().unwrap());
1655 .args(&["run", &prog])
1658 self.compose_and_run(
1660 self.config.run_lib_path.to_str().unwrap(),
1661 Some(aux_dir.to_str().unwrap()),
1665 _ if self.config.target.contains("vxworks") => {
1666 let aux_dir = self.aux_output_dir_name();
1667 let ProcArgs { prog, args } = self.make_run_args();
1668 let mut wr_run = Command::new("wr-run");
1669 wr_run.args(&[&prog]).args(args).envs(env.clone());
1670 self.compose_and_run(
1672 self.config.run_lib_path.to_str().unwrap(),
1673 Some(aux_dir.to_str().unwrap()),
1678 let aux_dir = self.aux_output_dir_name();
1679 let ProcArgs { prog, args } = self.make_run_args();
1680 let mut program = Command::new(&prog);
1683 .current_dir(&self.output_base_dir())
1685 self.compose_and_run(
1687 self.config.run_lib_path.to_str().unwrap(),
1688 Some(aux_dir.to_str().unwrap()),
1694 if proc_res.status.success() {
1695 // delete the executable after running it to save space.
1696 // it is ok if the deletion failed.
1697 let _ = fs::remove_file(self.make_exe_name());
1703 /// For each `aux-build: foo/bar` annotation, we check to find the
1704 /// file in a `auxiliary` directory relative to the test itself.
1705 fn compute_aux_test_paths(&self, rel_ab: &str) -> TestPaths {
1710 .expect("test file path has no parent")
1713 if !test_ab.exists() {
1714 self.fatal(&format!(
1715 "aux-build `{}` source not found",
1725 .join(self.output_testname_unique())
1729 .expect("aux-build path has no parent")
1734 fn is_vxworks_pure_static(&self) -> bool {
1735 if self.config.target.contains("vxworks") {
1736 match env::var("RUST_VXWORKS_TEST_DYLINK") {
1745 fn is_vxworks_pure_dynamic(&self) -> bool {
1746 self.config.target.contains("vxworks") && !self.is_vxworks_pure_static()
1749 fn compose_and_run_compiler(&self, mut rustc: Command, input: Option<String>) -> ProcRes {
1750 let aux_dir = self.aux_output_dir_name();
1752 if !self.props.aux_builds.is_empty() {
1753 let _ = fs::remove_dir_all(&aux_dir);
1754 create_dir_all(&aux_dir).unwrap();
1757 // Use a Vec instead of a HashMap to preserve original order
1758 let mut extern_priv = self.props.extern_private.clone();
1760 let mut add_extern_priv = |priv_dep: &str, dylib: bool| {
1761 let lib_name = get_lib_name(priv_dep, dylib);
1763 .arg("--extern-private")
1764 .arg(format!("{}={}", priv_dep, aux_dir.join(lib_name).to_str().unwrap()));
1767 for rel_ab in &self.props.aux_builds {
1768 let aux_testpaths = self.compute_aux_test_paths(rel_ab);
1771 .from_aux_file(&aux_testpaths.file, self.revision, self.config);
1772 let aux_output = TargetLocation::ThisDirectory(self.aux_output_dir_name());
1773 let aux_cx = TestCx {
1774 config: self.config,
1776 testpaths: &aux_testpaths,
1777 revision: self.revision,
1779 // Create the directory for the stdout/stderr files.
1780 create_dir_all(aux_cx.output_base_dir()).unwrap();
1781 let mut aux_rustc = aux_cx.make_compile_args(&aux_testpaths.file, aux_output);
1783 let (dylib, crate_type) = if aux_props.no_prefer_dynamic {
1785 } else if self.config.target.contains("cloudabi")
1786 || self.config.target.contains("emscripten")
1787 || (self.config.target.contains("musl")
1788 && !aux_props.force_host
1789 && !self.config.host.contains("musl"))
1790 || self.config.target.contains("wasm32")
1791 || self.config.target.contains("nvptx")
1792 || self.is_vxworks_pure_static()
1794 // We primarily compile all auxiliary libraries as dynamic libraries
1795 // to avoid code size bloat and large binaries as much as possible
1796 // for the test suite (otherwise including libstd statically in all
1797 // executables takes up quite a bit of space).
1799 // For targets like MUSL or Emscripten, however, there is no support for
1800 // dynamic libraries so we just go back to building a normal library. Note,
1801 // however, that for MUSL if the library is built with `force_host` then
1802 // it's ok to be a dylib as the host should always support dylibs.
1803 (false, Some("lib"))
1805 (true, Some("dylib"))
1808 let trimmed = rel_ab.trim_end_matches(".rs").to_string();
1810 // Normally, every 'extern-private' has a correspodning 'aux-build'
1811 // entry. If so, we remove it from our list of private crates,
1812 // and add an '--extern-private' flag to rustc
1813 if extern_priv.remove_item(&trimmed).is_some() {
1814 add_extern_priv(&trimmed, dylib);
1817 if let Some(crate_type) = crate_type {
1818 aux_rustc.args(&["--crate-type", crate_type]);
1821 aux_rustc.arg("-L").arg(&aux_dir);
1823 let auxres = aux_cx.compose_and_run(
1825 aux_cx.config.compile_lib_path.to_str().unwrap(),
1826 Some(aux_dir.to_str().unwrap()),
1829 if !auxres.status.success() {
1830 self.fatal_proc_rec(
1832 "auxiliary build of {:?} failed to compile: ",
1833 aux_testpaths.file.display()
1840 // Add any '--extern-private' entries without a matching
1842 for private_lib in extern_priv {
1843 add_extern_priv(&private_lib, true);
1846 self.props.unset_rustc_env.clone()
1848 .fold(&mut rustc, |rustc, v| rustc.env_remove(v));
1849 rustc.envs(self.props.rustc_env.clone());
1850 self.compose_and_run(
1852 self.config.compile_lib_path.to_str().unwrap(),
1853 Some(aux_dir.to_str().unwrap()),
1860 mut command: Command,
1862 aux_path: Option<&str>,
1863 input: Option<String>,
1866 let cmdline = self.make_cmdline(&command, lib_path);
1867 logv(self.config, format!("executing {}", cmdline));
1872 .stdout(Stdio::piped())
1873 .stderr(Stdio::piped())
1874 .stdin(Stdio::piped());
1876 // Need to be sure to put both the lib_path and the aux path in the dylib
1877 // search path for the child.
1878 let mut path = env::split_paths(&env::var_os(dylib_env_var()).unwrap_or(OsString::new()))
1879 .collect::<Vec<_>>();
1880 if let Some(p) = aux_path {
1881 path.insert(0, PathBuf::from(p))
1883 path.insert(0, PathBuf::from(lib_path));
1885 // Add the new dylib search path var
1886 let newpath = env::join_paths(&path).unwrap();
1887 command.env(dylib_env_var(), newpath);
1889 let mut child = disable_error_reporting(|| command.spawn())
1890 .expect(&format!("failed to exec `{:?}`", &command));
1891 if let Some(input) = input {
1896 .write_all(input.as_bytes())
1904 } = read2_abbreviated(child).expect("failed to read output");
1906 let result = ProcRes {
1908 stdout: String::from_utf8_lossy(&stdout).into_owned(),
1909 stderr: String::from_utf8_lossy(&stderr).into_owned(),
1913 self.dump_output(&result.stdout, &result.stderr);
1918 fn make_compile_args(
1921 output_file: TargetLocation,
1923 let is_rustdoc = self.config.src_base.ends_with("rustdoc-ui") ||
1924 self.config.src_base.ends_with("rustdoc-js");
1925 let mut rustc = if !is_rustdoc {
1926 Command::new(&self.config.rustc_path)
1933 .expect("no rustdoc built yet"),
1936 // FIXME Why is -L here?
1937 rustc.arg(input_file); //.arg("-L").arg(&self.config.build_base);
1939 // Use a single thread for efficiency and a deterministic error message order
1940 rustc.arg("-Zthreads=1");
1942 // Optionally prevent default --target if specified in test compile-flags.
1943 let custom_target = self
1947 .any(|x| x.starts_with("--target"));
1950 let target = if self.props.force_host {
1953 &*self.config.target
1956 rustc.arg(&format!("--target={}", target));
1958 self.set_revision_flags(&mut rustc);
1961 if let Some(ref incremental_dir) = self.props.incremental_dir {
1962 rustc.args(&["-C", &format!("incremental={}", incremental_dir.display())]);
1963 rustc.args(&["-Z", "incremental-verify-ich"]);
1964 rustc.args(&["-Z", "incremental-queries"]);
1967 if self.config.mode == CodegenUnits {
1968 rustc.args(&["-Z", "human_readable_cgu_names"]);
1972 match self.config.mode {
1973 CompileFail | Incremental => {
1974 // If we are extracting and matching errors in the new
1975 // fashion, then you want JSON mode. Old-skool error
1976 // patterns still match the raw compiler output.
1977 if self.props.error_patterns.is_empty() {
1978 rustc.args(&["--error-format", "json"]);
1980 if !self.props.disable_ui_testing_normalization {
1981 rustc.arg("-Zui-testing");
1989 .any(|s| s.starts_with("--error-format"))
1991 rustc.args(&["--error-format", "json"]);
1993 if !self.props.disable_ui_testing_normalization {
1994 rustc.arg("-Zui-testing");
2000 "-Zmir-opt-level=3",
2001 "-Zdump-mir-exclude-pass-number",
2004 let mir_dump_dir = self.get_mir_dump_dir();
2005 let _ = fs::remove_dir_all(&mir_dump_dir);
2006 create_dir_all(mir_dump_dir.as_path()).unwrap();
2007 let mut dir_opt = "-Zdump-mir-dir=".to_string();
2008 dir_opt.push_str(mir_dump_dir.to_str().unwrap());
2009 debug!("dir_opt: {:?}", dir_opt);
2013 RunFail | RunPassValgrind | Pretty | DebugInfoCdb | DebugInfoGdbLldb | DebugInfoGdb
2014 | DebugInfoLldb | Codegen | Rustdoc | RunMake | CodegenUnits | JsDocTest | Assembly => {
2015 // do not use JSON output
2019 if let Some(PassMode::Check) = self.pass_mode() {
2020 rustc.args(&["--emit", "metadata"]);
2024 if self.config.target == "wasm32-unknown-unknown"
2025 || self.is_vxworks_pure_static() {
2026 // rustc.arg("-g"); // get any backtrace at all on errors
2027 } else if !self.props.no_prefer_dynamic {
2028 rustc.args(&["-C", "prefer-dynamic"]);
2033 TargetLocation::ThisFile(path) => {
2034 rustc.arg("-o").arg(path);
2036 TargetLocation::ThisDirectory(path) => {
2038 // `rustdoc` uses `-o` for the output directory.
2039 rustc.arg("-o").arg(path);
2041 rustc.arg("--out-dir").arg(path);
2046 match self.config.compare_mode {
2047 Some(CompareMode::Nll) => {
2048 rustc.args(&["-Zborrowck=mir"]);
2050 Some(CompareMode::Polonius) => {
2051 rustc.args(&["-Zpolonius", "-Zborrowck=mir"]);
2056 if self.props.force_host {
2057 self.maybe_add_external_args(&mut rustc,
2058 self.split_maybe_args(&self.config.host_rustcflags));
2060 self.maybe_add_external_args(&mut rustc,
2061 self.split_maybe_args(&self.config.target_rustcflags));
2063 if let Some(ref linker) = self.config.linker {
2064 rustc.arg(format!("-Clinker={}", linker));
2069 // Use dynamic musl for tests because static doesn't allow creating dylibs
2070 if self.config.host.contains("musl")
2071 || self.is_vxworks_pure_dynamic() {
2072 rustc.arg("-Ctarget-feature=-crt-static");
2075 rustc.args(&self.props.compile_flags);
2080 fn make_exe_name(&self) -> PathBuf {
2081 // Using a single letter here to keep the path length down for
2082 // Windows. Some test names get very long. rustc creates `rcgu`
2083 // files with the module name appended to it which can more than
2084 // double the length.
2085 let mut f = self.output_base_dir().join("a");
2086 // FIXME: This is using the host architecture exe suffix, not target!
2087 if self.config.target.contains("emscripten") {
2088 f = f.with_extra_extension("js");
2089 } else if self.config.target.contains("wasm32") {
2090 f = f.with_extra_extension("wasm");
2091 } else if !env::consts::EXE_SUFFIX.is_empty() {
2092 f = f.with_extra_extension(env::consts::EXE_SUFFIX);
2097 fn make_run_args(&self) -> ProcArgs {
2098 // If we've got another tool to run under (valgrind),
2099 // then split apart its command
2100 let mut args = self.split_maybe_args(&self.config.runtool);
2102 // If this is emscripten, then run tests under nodejs
2103 if self.config.target.contains("emscripten") {
2104 if let Some(ref p) = self.config.nodejs {
2105 args.push(p.clone());
2107 self.fatal("no NodeJS binary found (--nodejs)");
2109 // If this is otherwise wasm, then run tests under nodejs with our
2111 } else if self.config.target.contains("wasm32") {
2112 if let Some(ref p) = self.config.nodejs {
2113 args.push(p.clone());
2115 self.fatal("no NodeJS binary found (--nodejs)");
2118 let src = self.config.src_base
2119 .parent().unwrap() // chop off `ui`
2120 .parent().unwrap() // chop off `test`
2121 .parent().unwrap(); // chop off `src`
2122 args.push(src.join("src/etc/wasm32-shim.js").display().to_string());
2125 let exe_file = self.make_exe_name();
2127 // FIXME (#9639): This needs to handle non-utf8 paths
2128 args.push(exe_file.to_str().unwrap().to_owned());
2130 // Add the arguments in the run_flags directive
2131 args.extend(self.split_maybe_args(&self.props.run_flags));
2133 let prog = args.remove(0);
2134 ProcArgs { prog, args }
2137 fn split_maybe_args(&self, argstr: &Option<String>) -> Vec<String> {
2142 if s.chars().all(|c| c.is_whitespace()) {
2153 fn make_cmdline(&self, command: &Command, libpath: &str) -> String {
2156 // Linux and mac don't require adjusting the library search path
2158 format!("{:?}", command)
2160 // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
2161 // for diagnostic purposes
2162 fn lib_path_cmd_prefix(path: &str) -> String {
2165 util::lib_path_env_var(),
2166 util::make_new_path(path)
2170 format!("{} {:?}", lib_path_cmd_prefix(libpath), command)
2174 fn dump_output(&self, out: &str, err: &str) {
2175 let revision = if let Some(r) = self.revision {
2181 self.dump_output_file(out, &format!("{}out", revision));
2182 self.dump_output_file(err, &format!("{}err", revision));
2183 self.maybe_dump_to_stdout(out, err);
2186 fn dump_output_file(&self, out: &str, extension: &str) {
2187 let outfile = self.make_out_name(extension);
2188 fs::write(&outfile, out).unwrap();
2191 /// Creates a filename for output with the given extension.
2192 /// E.g., `/.../testname.revision.mode/testname.extension`.
2193 fn make_out_name(&self, extension: &str) -> PathBuf {
2194 self.output_base_name().with_extension(extension)
2197 /// Gets the directory where auxiliary files are written.
2198 /// E.g., `/.../testname.revision.mode/auxiliary/`.
2199 fn aux_output_dir_name(&self) -> PathBuf {
2200 self.output_base_dir()
2202 .with_extra_extension(self.config.mode.disambiguator())
2205 /// Generates a unique name for the test, such as `testname.revision.mode`.
2206 fn output_testname_unique(&self) -> PathBuf {
2207 output_testname_unique(self.config, self.testpaths, self.safe_revision())
2210 /// The revision, ignored for incremental compilation since it wants all revisions in
2211 /// the same directory.
2212 fn safe_revision(&self) -> Option<&str> {
2213 if self.config.mode == Incremental {
2220 /// Gets the absolute path to the directory where all output for the given
2221 /// test/revision should reside.
2222 /// E.g., `/path/to/build/host-triple/test/ui/relative/testname.revision.mode/`.
2223 fn output_base_dir(&self) -> PathBuf {
2224 output_base_dir(self.config, self.testpaths, self.safe_revision())
2227 /// Gets the absolute path to the base filename used as output for the given
2229 /// E.g., `/.../relative/testname.revision.mode/testname`.
2230 fn output_base_name(&self) -> PathBuf {
2231 output_base_name(self.config, self.testpaths, self.safe_revision())
2234 fn maybe_dump_to_stdout(&self, out: &str, err: &str) {
2235 if self.config.verbose {
2236 println!("------{}------------------------------", "stdout");
2237 println!("{}", out);
2238 println!("------{}------------------------------", "stderr");
2239 println!("{}", err);
2240 println!("------------------------------------------");
2244 fn error(&self, err: &str) {
2245 match self.revision {
2246 Some(rev) => println!("\nerror in revision `{}`: {}", rev, err),
2247 None => println!("\nerror: {}", err),
2251 fn fatal(&self, err: &str) -> ! {
2253 error!("fatal error, panic: {:?}", err);
2254 panic!("fatal error");
2257 fn fatal_proc_rec(&self, err: &str, proc_res: &ProcRes) -> ! {
2259 proc_res.fatal(None);
2262 // codegen tests (using FileCheck)
2264 fn compile_test_and_save_ir(&self) -> ProcRes {
2265 let aux_dir = self.aux_output_dir_name();
2267 let output_file = TargetLocation::ThisDirectory(self.output_base_dir());
2268 let mut rustc = self.make_compile_args(&self.testpaths.file, output_file);
2269 rustc.arg("-L").arg(aux_dir).arg("--emit=llvm-ir");
2271 self.compose_and_run_compiler(rustc, None)
2274 fn compile_test_and_save_assembly(&self) -> (ProcRes, PathBuf) {
2275 // This works with both `--emit asm` (as default output name for the assembly)
2276 // and `ptx-linker` because the latter can write output at requested location.
2277 let output_path = self.output_base_name().with_extension("s");
2279 let output_file = TargetLocation::ThisFile(output_path.clone());
2280 let mut rustc = self.make_compile_args(&self.testpaths.file, output_file);
2282 rustc.arg("-L").arg(self.aux_output_dir_name());
2284 match self.props.assembly_output.as_ref().map(AsRef::as_ref) {
2285 Some("emit-asm") => {
2286 rustc.arg("--emit=asm");
2289 Some("ptx-linker") => {
2290 // No extra flags needed.
2293 Some(_) => self.fatal("unknown 'assembly-output' header"),
2294 None => self.fatal("missing 'assembly-output' header"),
2297 (self.compose_and_run_compiler(rustc, None), output_path)
2300 fn verify_with_filecheck(&self, output: &Path) -> ProcRes {
2301 let mut filecheck = Command::new(self.config.llvm_filecheck.as_ref().unwrap());
2303 .arg("--input-file")
2305 .arg(&self.testpaths.file);
2306 // It would be more appropriate to make most of the arguments configurable through
2307 // a comment-attribute similar to `compile-flags`. For example, --check-prefixes is a very
2310 // For now, though…
2311 if let Some(rev) = self.revision {
2312 let prefixes = format!("CHECK,{}", rev);
2313 filecheck.args(&["--check-prefixes", &prefixes]);
2315 self.compose_and_run(filecheck, "", None, None)
2318 fn run_codegen_test(&self) {
2319 if self.config.llvm_filecheck.is_none() {
2320 self.fatal("missing --llvm-filecheck");
2323 let proc_res = self.compile_test_and_save_ir();
2324 if !proc_res.status.success() {
2325 self.fatal_proc_rec("compilation failed!", &proc_res);
2328 let output_path = self.output_base_name().with_extension("ll");
2329 let proc_res = self.verify_with_filecheck(&output_path);
2330 if !proc_res.status.success() {
2331 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2335 fn run_assembly_test(&self) {
2336 if self.config.llvm_filecheck.is_none() {
2337 self.fatal("missing --llvm-filecheck");
2340 let (proc_res, output_path) = self.compile_test_and_save_assembly();
2341 if !proc_res.status.success() {
2342 self.fatal_proc_rec("compilation failed!", &proc_res);
2345 let proc_res = self.verify_with_filecheck(&output_path);
2346 if !proc_res.status.success() {
2347 self.fatal_proc_rec("verification with 'FileCheck' failed", &proc_res);
2351 fn charset() -> &'static str {
2352 // FreeBSD 10.1 defaults to GDB 6.1.1 which doesn't support "auto" charset
2353 if cfg!(target_os = "freebsd") {
2360 fn run_rustdoc_test(&self) {
2361 assert!(self.revision.is_none(), "revisions not relevant here");
2363 let out_dir = self.output_base_dir();
2364 let _ = fs::remove_dir_all(&out_dir);
2365 create_dir_all(&out_dir).unwrap();
2367 let proc_res = self.document(&out_dir);
2368 if !proc_res.status.success() {
2369 self.fatal_proc_rec("rustdoc failed!", &proc_res);
2372 if self.props.check_test_line_numbers_match {
2373 self.check_rustdoc_test_option(proc_res);
2375 let root = self.config.find_rust_src_root().unwrap();
2376 let res = self.cmd2procres(
2377 Command::new(&self.config.docck_python)
2378 .arg(root.join("src/etc/htmldocck.py"))
2380 .arg(&self.testpaths.file),
2382 if !res.status.success() {
2383 self.fatal_proc_rec("htmldocck failed!", &res);
2388 fn get_lines<P: AsRef<Path>>(
2391 mut other_files: Option<&mut Vec<String>>,
2393 let content = fs::read_to_string(&path).unwrap();
2394 let mut ignore = false;
2398 .filter_map(|(line_nb, line)| {
2399 if (line.trim_start().starts_with("pub mod ")
2400 || line.trim_start().starts_with("mod "))
2401 && line.ends_with(';')
2403 if let Some(ref mut other_files) = other_files {
2404 other_files.push(line.rsplit("mod ").next().unwrap().replace(";", ""));
2408 let sline = line.split("///").last().unwrap_or("");
2409 let line = sline.trim_start();
2410 if line.starts_with("```") {
2426 fn check_rustdoc_test_option(&self, res: ProcRes) {
2427 let mut other_files = Vec::new();
2428 let mut files: HashMap<String, Vec<usize>> = HashMap::new();
2429 let cwd = env::current_dir().unwrap();
2434 .unwrap_or(&self.testpaths.file)
2437 .replace('\\', "/"),
2438 self.get_lines(&self.testpaths.file, Some(&mut other_files)),
2440 for other_file in other_files {
2441 let mut path = self.testpaths.file.clone();
2442 path.set_file_name(&format!("{}.rs", other_file));
2444 path.strip_prefix(&cwd)
2448 .replace('\\', "/"),
2449 self.get_lines(&path, None),
2457 .filter(|s| s.starts_with("test "))
2459 let tmp: Vec<&str> = s.split(" - ").collect();
2461 let path = tmp[0].rsplit("test ").next().unwrap();
2462 if let Some(ref mut v) = files.get_mut(&path.replace('\\', "/")) {
2464 let mut iter = tmp[1].split("(line ");
2474 if let Ok(pos) = v.binary_search(&line) {
2477 self.fatal_proc_rec(
2478 &format!("Not found doc test: \"{}\" in \"{}\":{:?}", s, path, v),
2486 self.fatal_proc_rec(&format!("No test has been found... {:?}", files), &res);
2488 for (entry, v) in &files {
2490 self.fatal_proc_rec(
2492 "Not found test at line{} \"{}\":{:?}",
2493 if v.len() > 1 { "s" } else { "" },
2504 fn run_codegen_units_test(&self) {
2505 assert!(self.revision.is_none(), "revisions not relevant here");
2507 let proc_res = self.compile_test();
2509 if !proc_res.status.success() {
2510 self.fatal_proc_rec("compilation failed!", &proc_res);
2513 self.check_no_compiler_crash(&proc_res);
2515 const PREFIX: &'static str = "MONO_ITEM ";
2516 const CGU_MARKER: &'static str = "@@";
2518 let actual: Vec<MonoItem> = proc_res
2521 .filter(|line| line.starts_with(PREFIX))
2522 .map(|line| str_to_mono_item(line, true))
2525 let expected: Vec<MonoItem> = errors::load_errors(&self.testpaths.file, None)
2527 .map(|e| str_to_mono_item(&e.msg[..], false))
2530 let mut missing = Vec::new();
2531 let mut wrong_cgus = Vec::new();
2533 for expected_item in &expected {
2534 let actual_item_with_same_name = actual.iter().find(|ti| ti.name == expected_item.name);
2536 if let Some(actual_item) = actual_item_with_same_name {
2537 if !expected_item.codegen_units.is_empty() &&
2538 // Also check for codegen units
2539 expected_item.codegen_units != actual_item.codegen_units
2541 wrong_cgus.push((expected_item.clone(), actual_item.clone()));
2544 missing.push(expected_item.string.clone());
2548 let unexpected: Vec<_> = actual
2550 .filter(|acgu| !expected.iter().any(|ecgu| acgu.name == ecgu.name))
2551 .map(|acgu| acgu.string.clone())
2554 if !missing.is_empty() {
2557 println!("\nThese items should have been contained but were not:\n");
2559 for item in &missing {
2560 println!("{}", item);
2566 if !unexpected.is_empty() {
2568 let mut sorted = unexpected.clone();
2573 println!("\nThese items were contained but should not have been:\n");
2575 for item in sorted {
2576 println!("{}", item);
2582 if !wrong_cgus.is_empty() {
2583 wrong_cgus.sort_by_key(|pair| pair.0.name.clone());
2584 println!("\nThe following items were assigned to wrong codegen units:\n");
2586 for &(ref expected_item, ref actual_item) in &wrong_cgus {
2587 println!("{}", expected_item.name);
2590 codegen_units_to_str(&expected_item.codegen_units)
2594 codegen_units_to_str(&actual_item.codegen_units)
2600 if !(missing.is_empty() && unexpected.is_empty() && wrong_cgus.is_empty()) {
2604 #[derive(Clone, Eq, PartialEq)]
2607 codegen_units: HashSet<String>,
2611 // [MONO_ITEM] name [@@ (cgu)+]
2612 fn str_to_mono_item(s: &str, cgu_has_crate_disambiguator: bool) -> MonoItem {
2613 let s = if s.starts_with(PREFIX) {
2614 (&s[PREFIX.len()..]).trim()
2619 let full_string = format!("{}{}", PREFIX, s);
2621 let parts: Vec<&str> = s
2624 .filter(|s| !s.is_empty())
2627 let name = parts[0].trim();
2629 let cgus = if parts.len() > 1 {
2630 let cgus_str = parts[1];
2635 .filter(|s| !s.is_empty())
2637 if cgu_has_crate_disambiguator {
2638 remove_crate_disambiguator_from_cgu(s)
2649 name: name.to_owned(),
2650 codegen_units: cgus,
2651 string: full_string,
2655 fn codegen_units_to_str(cgus: &HashSet<String>) -> String {
2656 let mut cgus: Vec<_> = cgus.iter().collect();
2659 let mut string = String::new();
2661 string.push_str(&cgu[..]);
2662 string.push_str(" ");
2668 // Given a cgu-name-prefix of the form <crate-name>.<crate-disambiguator> or
2669 // the form <crate-name1>.<crate-disambiguator1>-in-<crate-name2>.<crate-disambiguator2>,
2670 // remove all crate-disambiguators.
2671 fn remove_crate_disambiguator_from_cgu(cgu: &str) -> String {
2673 static ref RE: Regex = Regex::new(
2674 r"^[^\.]+(?P<d1>\.[[:alnum:]]+)(-in-[^\.]+(?P<d2>\.[[:alnum:]]+))?"
2678 let captures = RE.captures(cgu).unwrap_or_else(|| {
2679 panic!("invalid cgu name encountered: {}", cgu)
2682 let mut new_name = cgu.to_owned();
2684 if let Some(d2) = captures.name("d2") {
2685 new_name.replace_range(d2.start() .. d2.end(), "");
2688 let d1 = captures.name("d1").unwrap();
2689 new_name.replace_range(d1.start() .. d1.end(), "");
2695 fn init_incremental_test(&self) {
2696 // (See `run_incremental_test` for an overview of how incremental tests work.)
2698 // Before any of the revisions have executed, create the
2699 // incremental workproduct directory. Delete any old
2700 // incremental work products that may be there from prior
2702 let incremental_dir = self.incremental_dir();
2703 if incremental_dir.exists() {
2704 // Canonicalizing the path will convert it to the //?/ format
2705 // on Windows, which enables paths longer than 260 character
2706 let canonicalized = incremental_dir.canonicalize().unwrap();
2707 fs::remove_dir_all(canonicalized).unwrap();
2709 fs::create_dir_all(&incremental_dir).unwrap();
2711 if self.config.verbose {
2713 "init_incremental_test: incremental_dir={}",
2714 incremental_dir.display()
2719 fn run_incremental_test(&self) {
2720 // Basic plan for a test incremental/foo/bar.rs:
2721 // - load list of revisions rpass1, cfail2, rpass3
2722 // - each should begin with `rpass`, `cfail`, or `rfail`
2723 // - if `rpass`, expect compile and execution to succeed
2724 // - if `cfail`, expect compilation to fail
2725 // - if `rfail`, expect execution to fail
2726 // - create a directory build/foo/bar.incremental
2727 // - compile foo/bar.rs with -Z incremental=.../foo/bar.incremental and -C rpass1
2728 // - because name of revision starts with "rpass", expect success
2729 // - compile foo/bar.rs with -Z incremental=.../foo/bar.incremental and -C cfail2
2730 // - because name of revision starts with "cfail", expect an error
2731 // - load expected errors as usual, but filter for those that end in `[rfail2]`
2732 // - compile foo/bar.rs with -Z incremental=.../foo/bar.incremental and -C rpass3
2733 // - because name of revision starts with "rpass", expect success
2734 // - execute build/foo/bar.exe and save output
2736 // FIXME -- use non-incremental mode as an oracle? That doesn't apply
2737 // to #[rustc_dirty] and clean tests I guess
2741 .expect("incremental tests require a list of revisions");
2743 // Incremental workproduct directory should have already been created.
2744 let incremental_dir = self.incremental_dir();
2746 incremental_dir.exists(),
2747 "init_incremental_test failed to create incremental dir"
2750 // Add an extra flag pointing at the incremental directory.
2751 let mut revision_props = self.props.clone();
2752 revision_props.incremental_dir = Some(incremental_dir);
2754 let revision_cx = TestCx {
2755 config: self.config,
2756 props: &revision_props,
2757 testpaths: self.testpaths,
2758 revision: self.revision,
2761 if self.config.verbose {
2763 "revision={:?} revision_props={:#?}",
2764 revision, revision_props
2768 if revision.starts_with("rpass") {
2769 revision_cx.run_rpass_test();
2770 } else if revision.starts_with("rfail") {
2771 revision_cx.run_rfail_test();
2772 } else if revision.starts_with("cfail") {
2773 revision_cx.run_cfail_test();
2775 revision_cx.fatal("revision name must begin with rpass, rfail, or cfail");
2779 /// Directory where incremental work products are stored.
2780 fn incremental_dir(&self) -> PathBuf {
2781 self.output_base_name().with_extension("inc")
2784 fn run_rmake_test(&self) {
2785 let cwd = env::current_dir().unwrap();
2795 let src_root = cwd.join(&src_root);
2797 let tmpdir = cwd.join(self.output_base_name());
2798 if tmpdir.exists() {
2799 self.aggressive_rm_rf(&tmpdir).unwrap();
2801 create_dir_all(&tmpdir).unwrap();
2803 let host = &self.config.host;
2804 let make = if host.contains("dragonfly")
2805 || host.contains("freebsd")
2806 || host.contains("netbsd")
2807 || host.contains("openbsd")
2814 let mut cmd = Command::new(make);
2815 cmd.current_dir(&self.testpaths.file)
2816 .stdout(Stdio::piped())
2817 .stderr(Stdio::piped())
2818 .env("TARGET", &self.config.target)
2819 .env("PYTHON", &self.config.docck_python)
2821 .env("RUST_BUILD_STAGE", &self.config.stage_id)
2822 .env("RUSTC", cwd.join(&self.config.rustc_path))
2823 .env("TMPDIR", &tmpdir)
2824 .env("LD_LIB_PATH_ENVVAR", dylib_env_var())
2825 .env("HOST_RPATH_DIR", cwd.join(&self.config.compile_lib_path))
2826 .env("TARGET_RPATH_DIR", cwd.join(&self.config.run_lib_path))
2827 .env("LLVM_COMPONENTS", &self.config.llvm_components)
2828 .env("LLVM_CXXFLAGS", &self.config.llvm_cxxflags)
2830 // We for sure don't want these tests to run in parallel, so make
2831 // sure they don't have access to these vars if we run via `make`
2833 .env_remove("MAKEFLAGS")
2834 .env_remove("MFLAGS")
2835 .env_remove("CARGO_MAKEFLAGS");
2837 if let Some(ref rustdoc) = self.config.rustdoc_path {
2838 cmd.env("RUSTDOC", cwd.join(rustdoc));
2841 if let Some(ref node) = self.config.nodejs {
2842 cmd.env("NODE", node);
2845 if let Some(ref linker) = self.config.linker {
2846 cmd.env("RUSTC_LINKER", linker);
2849 if let Some(ref clang) = self.config.run_clang_based_tests_with {
2850 cmd.env("CLANG", clang);
2853 if let Some(ref filecheck) = self.config.llvm_filecheck {
2854 cmd.env("LLVM_FILECHECK", filecheck);
2857 if let Some(ref llvm_bin_dir) = self.config.llvm_bin_dir {
2858 cmd.env("LLVM_BIN_DIR", llvm_bin_dir);
2861 // We don't want RUSTFLAGS set from the outside to interfere with
2862 // compiler flags set in the test cases:
2863 cmd.env_remove("RUSTFLAGS");
2865 // Use dynamic musl for tests because static doesn't allow creating dylibs
2866 if self.config.host.contains("musl") {
2867 cmd.env("RUSTFLAGS", "-Ctarget-feature=-crt-static")
2868 .env("IS_MUSL_HOST", "1");
2871 if self.config.target.contains("msvc") && self.config.cc != "" {
2872 // We need to pass a path to `lib.exe`, so assume that `cc` is `cl.exe`
2873 // and that `lib.exe` lives next to it.
2874 let lib = Path::new(&self.config.cc).parent().unwrap().join("lib.exe");
2876 // MSYS doesn't like passing flags of the form `/foo` as it thinks it's
2877 // a path and instead passes `C:\msys64\foo`, so convert all
2878 // `/`-arguments to MSVC here to `-` arguments.
2883 .map(|s| s.replace("/", "-"))
2884 .collect::<Vec<_>>()
2887 cmd.env("IS_MSVC", "1")
2888 .env("IS_WINDOWS", "1")
2889 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
2890 .env("CC", format!("'{}' {}", self.config.cc, cflags))
2891 .env("CXX", format!("'{}'", &self.config.cxx));
2893 cmd.env("CC", format!("{} {}", self.config.cc, self.config.cflags))
2894 .env("CXX", format!("{} {}", self.config.cxx, self.config.cflags))
2895 .env("AR", &self.config.ar);
2897 if self.config.target.contains("windows") {
2898 cmd.env("IS_WINDOWS", "1");
2904 .and_then(read2_abbreviated)
2905 .expect("failed to spawn `make`");
2906 if !output.status.success() {
2908 status: output.status,
2909 stdout: String::from_utf8_lossy(&output.stdout).into_owned(),
2910 stderr: String::from_utf8_lossy(&output.stderr).into_owned(),
2911 cmdline: format!("{:?}", cmd),
2913 self.fatal_proc_rec("make failed", &res);
2917 fn aggressive_rm_rf(&self, path: &Path) -> io::Result<()> {
2918 for e in path.read_dir()? {
2920 let path = entry.path();
2921 if entry.file_type()?.is_dir() {
2922 self.aggressive_rm_rf(&path)?;
2924 // Remove readonly files as well on windows (by default we can't)
2925 fs::remove_file(&path).or_else(|e| {
2926 if cfg!(windows) && e.kind() == io::ErrorKind::PermissionDenied {
2927 let mut meta = entry.metadata()?.permissions();
2928 meta.set_readonly(false);
2929 fs::set_permissions(&path, meta)?;
2930 fs::remove_file(&path)
2937 fs::remove_dir(path)
2940 fn run_js_doc_test(&self) {
2941 if let Some(nodejs) = &self.config.nodejs {
2942 let out_dir = self.output_base_dir();
2944 self.document(&out_dir);
2946 let root = self.config.find_rust_src_root().unwrap();
2947 let res = self.cmd2procres(
2948 Command::new(&nodejs)
2949 .arg(root.join("src/tools/rustdoc-js/tester.js"))
2950 .arg(out_dir.parent().expect("no parent"))
2951 .arg(&self.testpaths.file.file_stem().expect("couldn't get file stem")),
2953 if !res.status.success() {
2954 self.fatal_proc_rec("rustdoc-js test failed!", &res);
2957 self.fatal("no nodeJS");
2961 fn load_compare_outputs(&self, proc_res: &ProcRes,
2962 output_kind: TestOutput, explicit_format: bool) -> usize {
2964 let (stderr_kind, stdout_kind) = match output_kind {
2965 TestOutput::Compile => (UI_STDERR, UI_STDOUT),
2966 TestOutput::Run => (UI_RUN_STDERR, UI_RUN_STDOUT)
2969 let expected_stderr = self.load_expected_output(stderr_kind);
2970 let expected_stdout = self.load_expected_output(stdout_kind);
2972 let normalized_stdout = match output_kind {
2973 TestOutput::Run if self.config.remote_test_client.is_some() => {
2974 // When tests are run using the remote-test-client, the string
2975 // 'uploaded "$TEST_BUILD_DIR/<test_executable>, waiting for result"'
2976 // is printed to stdout by the client and then captured in the ProcRes,
2977 // so it needs to be removed when comparing the run-pass test execution output
2979 static ref REMOTE_TEST_RE: Regex = Regex::new(
2980 "^uploaded \"\\$TEST_BUILD_DIR(/[[:alnum:]_\\-]+)+\", waiting for result\n"
2983 REMOTE_TEST_RE.replace(
2984 &self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout),
2988 _ => self.normalize_output(&proc_res.stdout, &self.props.normalize_stdout)
2991 let stderr = if explicit_format {
2992 proc_res.stderr.clone()
2994 json::extract_rendered(&proc_res.stderr)
2997 let normalized_stderr = self.normalize_output(&stderr, &self.props.normalize_stderr);
3000 TestOutput::Compile => {
3001 if !self.props.dont_check_compiler_stdout {
3002 errors += self.compare_output("stdout", &normalized_stdout, &expected_stdout);
3004 if !self.props.dont_check_compiler_stderr {
3005 errors += self.compare_output("stderr", &normalized_stderr, &expected_stderr);
3008 TestOutput::Run => {
3009 errors += self.compare_output(stdout_kind, &normalized_stdout, &expected_stdout);
3010 errors += self.compare_output(stderr_kind, &normalized_stderr, &expected_stderr);
3016 fn run_ui_test(&self) {
3017 // if the user specified a format in the ui test
3018 // print the output to the stderr file, otherwise extract
3019 // the rendered error messages from json and print them
3024 .any(|s| s.contains("--error-format"));
3025 let proc_res = self.compile_test();
3026 self.check_if_test_should_compile(&proc_res);
3028 let expected_fixed = self.load_expected_output(UI_FIXED);
3030 let modes_to_prune = vec![CompareMode::Nll];
3031 self.prune_duplicate_outputs(&modes_to_prune);
3033 let mut errors = self.load_compare_outputs(&proc_res, TestOutput::Compile, explicit);
3035 if self.config.compare_mode.is_some() {
3036 // don't test rustfix with nll right now
3037 } else if self.config.rustfix_coverage {
3038 // Find out which tests have `MachineApplicable` suggestions but are missing
3039 // `run-rustfix` or `run-rustfix-only-machine-applicable` headers.
3041 // This will return an empty `Vec` in case the executed test file has a
3042 // `compile-flags: --error-format=xxxx` header with a value other than `json`.
3043 let suggestions = get_suggestions_from_json(
3046 Filter::MachineApplicableOnly
3047 ).unwrap_or_default();
3048 if suggestions.len() > 0
3049 && !self.props.run_rustfix
3050 && !self.props.rustfix_only_machine_applicable {
3051 let mut coverage_file_path = self.config.build_base.clone();
3052 coverage_file_path.push("rustfix_missing_coverage.txt");
3053 debug!("coverage_file_path: {}", coverage_file_path.display());
3055 let mut file = OpenOptions::new()
3058 .open(coverage_file_path.as_path())
3059 .expect("could not create or open file");
3061 if let Err(_) = writeln!(file, "{}", self.testpaths.file.display()) {
3062 panic!("couldn't write to {}", coverage_file_path.display());
3065 } else if self.props.run_rustfix {
3066 // Apply suggestions from rustc to the code itself
3067 let unfixed_code = self
3068 .load_expected_output_from_path(&self.testpaths.file)
3070 let suggestions = get_suggestions_from_json(
3073 if self.props.rustfix_only_machine_applicable {
3074 Filter::MachineApplicableOnly
3079 let fixed_code = apply_suggestions(&unfixed_code, &suggestions).expect(&format!(
3080 "failed to apply suggestions for {:?} with rustfix",
3084 errors += self.compare_output("fixed", &fixed_code, &expected_fixed);
3085 } else if !expected_fixed.is_empty() {
3087 "the `// run-rustfix` directive wasn't found but a `*.fixed` \
3093 println!("To update references, rerun the tests and pass the `--bless` flag");
3094 let relative_path_to_file = self
3097 .join(self.testpaths.file.file_name().unwrap());
3099 "To only update this specific test, also pass `--test-args {}`",
3100 relative_path_to_file.display(),
3102 self.fatal_proc_rec(
3103 &format!("{} errors occurred comparing output.", errors),
3108 let expected_errors = errors::load_errors(&self.testpaths.file, self.revision);
3110 if self.should_run_successfully() {
3111 let proc_res = self.exec_compiled_test();
3112 let run_output_errors = if self.props.check_run_results {
3113 self.load_compare_outputs(&proc_res, TestOutput::Run, explicit)
3117 if run_output_errors > 0 {
3118 self.fatal_proc_rec(
3119 &format!("{} errors occured comparing run output.", run_output_errors),
3123 if !proc_res.status.success() {
3124 self.fatal_proc_rec("test run failed!", &proc_res);
3128 debug!("run_ui_test: explicit={:?} config.compare_mode={:?} expected_errors={:?} \
3129 proc_res.status={:?} props.error_patterns={:?}",
3130 explicit, self.config.compare_mode, expected_errors, proc_res.status,
3131 self.props.error_patterns);
3132 if !explicit && self.config.compare_mode.is_none() {
3133 if !proc_res.status.success() {
3134 if !self.props.error_patterns.is_empty() {
3135 // "// error-pattern" comments
3136 self.check_error_patterns(&proc_res.stderr, &proc_res);
3138 // "//~ERROR comments"
3139 self.check_expected_errors(expected_errors, &proc_res);
3144 if self.props.run_rustfix && self.config.compare_mode.is_none() {
3145 // And finally, compile the fixed code and make sure it both
3146 // succeeds and has no diagnostics.
3147 let mut rustc = self.make_compile_args(
3148 &self.testpaths.file.with_extension(UI_FIXED),
3149 TargetLocation::ThisFile(self.make_exe_name()),
3151 rustc.arg("-L").arg(&self.aux_output_dir_name());
3152 let res = self.compose_and_run_compiler(rustc, None);
3153 if !res.status.success() {
3154 self.fatal_proc_rec("failed to compile fixed code", &res);
3156 if !res.stderr.is_empty() && !self.props.rustfix_only_machine_applicable {
3157 self.fatal_proc_rec("fixed code is still producing diagnostics", &res);
3162 fn run_mir_opt_test(&self) {
3163 let proc_res = self.compile_test();
3165 if !proc_res.status.success() {
3166 self.fatal_proc_rec("compilation failed!", &proc_res);
3169 let proc_res = self.exec_compiled_test();
3171 if !proc_res.status.success() {
3172 self.fatal_proc_rec("test run failed!", &proc_res);
3174 self.check_mir_dump();
3177 fn check_mir_dump(&self) {
3178 let test_file_contents = fs::read_to_string(&self.testpaths.file).unwrap();
3179 if let Some(idx) = test_file_contents.find("// END RUST SOURCE") {
3180 let (_, tests_text) = test_file_contents.split_at(idx + "// END_RUST SOURCE".len());
3181 let tests_text_str = String::from(tests_text);
3182 let mut curr_test: Option<&str> = None;
3183 let mut curr_test_contents = vec![ExpectedLine::Elision];
3184 for l in tests_text_str.lines() {
3185 debug!("line: {:?}", l);
3186 if l.starts_with("// START ") {
3187 let (_, t) = l.split_at("// START ".len());
3188 curr_test = Some(t);
3189 } else if l.starts_with("// END") {
3190 let (_, t) = l.split_at("// END ".len());
3191 if Some(t) != curr_test {
3192 panic!("mismatched START END test name");
3194 self.compare_mir_test_output(curr_test.unwrap(), &curr_test_contents);
3196 curr_test_contents.clear();
3197 curr_test_contents.push(ExpectedLine::Elision);
3198 } else if l.is_empty() {
3200 } else if l.starts_with("//") && l.split_at("//".len()).1.trim() == "..." {
3201 curr_test_contents.push(ExpectedLine::Elision)
3202 } else if l.starts_with("// ") {
3203 let (_, test_content) = l.split_at("// ".len());
3204 curr_test_contents.push(ExpectedLine::Text(test_content));
3210 fn check_mir_test_timestamp(&self, test_name: &str, output_file: &Path) {
3211 let t = |file| fs::metadata(file).unwrap().modified().unwrap();
3212 let source_file = &self.testpaths.file;
3213 let output_time = t(output_file);
3214 let source_time = t(source_file);
3215 if source_time > output_time {
3217 "source file time: {:?} output file time: {:?}",
3218 source_time, output_time
3221 "test source file `{}` is newer than potentially stale output file `{}`.",
3222 source_file.display(),
3228 fn compare_mir_test_output(&self, test_name: &str, expected_content: &[ExpectedLine<&str>]) {
3229 let mut output_file = PathBuf::new();
3230 output_file.push(self.get_mir_dump_dir());
3231 output_file.push(test_name);
3232 debug!("comparing the contests of: {:?}", output_file);
3233 debug!("with: {:?}", expected_content);
3234 if !output_file.exists() {
3236 "Output file `{}` from test does not exist",
3237 output_file.into_os_string().to_string_lossy()
3240 self.check_mir_test_timestamp(test_name, &output_file);
3242 let dumped_string = fs::read_to_string(&output_file).unwrap();
3243 let mut dumped_lines = dumped_string
3245 .map(|l| nocomment_mir_line(l))
3246 .filter(|l| !l.is_empty());
3247 let mut expected_lines = expected_content
3250 if let &ExpectedLine::Text(l) = l {
3258 let compare = |expected_line, dumped_line| {
3259 let e_norm = normalize_mir_line(expected_line);
3260 let d_norm = normalize_mir_line(dumped_line);
3261 debug!("found: {:?}", d_norm);
3262 debug!("expected: {:?}", e_norm);
3266 let error = |expected_line, extra_msg| {
3267 let normalize_all = dumped_string
3269 .map(nocomment_mir_line)
3270 .filter(|l| !l.is_empty())
3271 .collect::<Vec<_>>()
3273 let f = |l: &ExpectedLine<_>| match l {
3274 &ExpectedLine::Elision => "... (elided)".into(),
3275 &ExpectedLine::Text(t) => t,
3277 let expected_content = expected_content
3280 .collect::<Vec<_>>()
3283 "Did not find expected line, error: {}\n\
3284 Expected Line: {:?}\n\
3288 extra_msg, expected_line, test_name, expected_content, normalize_all
3292 // We expect each non-empty line to appear consecutively, non-consecutive lines
3293 // must be separated by at least one Elision
3294 let mut start_block_line = None;
3295 while let Some(dumped_line) = dumped_lines.next() {
3296 match expected_lines.next() {
3297 Some(&ExpectedLine::Text(expected_line)) => {
3298 let normalized_expected_line = normalize_mir_line(expected_line);
3299 if normalized_expected_line.contains(":{") {
3300 start_block_line = Some(expected_line);
3303 if !compare(expected_line, dumped_line) {
3304 error!("{:?}", start_block_line);
3308 "Mismatch in lines\n\
3309 Current block: {}\n\
3311 start_block_line.unwrap_or("None"),
3317 Some(&ExpectedLine::Elision) => {
3318 // skip any number of elisions in a row.
3319 while let Some(&&ExpectedLine::Elision) = expected_lines.peek() {
3320 expected_lines.next();
3322 if let Some(&ExpectedLine::Text(expected_line)) = expected_lines.next() {
3323 let mut found = compare(expected_line, dumped_line);
3327 while let Some(dumped_line) = dumped_lines.next() {
3328 found = compare(expected_line, dumped_line);
3334 error(expected_line, "ran out of mir dump to match against".into());
3343 fn get_mir_dump_dir(&self) -> PathBuf {
3344 let mut mir_dump_dir = PathBuf::from(self.config.build_base.as_path());
3345 debug!("input_file: {:?}", self.testpaths.file);
3346 mir_dump_dir.push(&self.testpaths.relative_dir);
3347 mir_dump_dir.push(self.testpaths.file.file_stem().unwrap());
3351 fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> String {
3352 let cflags = self.props.compile_flags.join(" ");
3353 let json = cflags.contains("--error-format json")
3354 || cflags.contains("--error-format pretty-json")
3355 || cflags.contains("--error-format=json")
3356 || cflags.contains("--error-format=pretty-json");
3358 let mut normalized = output.to_string();
3360 let mut normalize_path = |from: &Path, to: &str| {
3361 let mut from = from.display().to_string();
3363 from = from.replace("\\", "\\\\");
3365 normalized = normalized.replace(&from, to);
3368 let parent_dir = self.testpaths.file.parent().unwrap();
3369 normalize_path(parent_dir, "$DIR");
3371 // Paths into the libstd/libcore
3372 let src_dir = self.config.src_base.parent().unwrap().parent().unwrap();
3373 normalize_path(src_dir, "$SRC_DIR");
3375 // Paths into the build directory
3376 let test_build_dir = &self.config.build_base;
3377 let parent_build_dir = test_build_dir.parent().unwrap().parent().unwrap().parent().unwrap();
3379 // eg. /home/user/rust/build/x86_64-unknown-linux-gnu/test/ui
3380 normalize_path(test_build_dir, "$TEST_BUILD_DIR");
3381 // eg. /home/user/rust/build
3382 normalize_path(parent_build_dir, "$BUILD_DIR");
3384 // Paths into lib directory.
3385 normalize_path(&parent_build_dir.parent().unwrap().join("lib"), "$LIB_DIR");
3388 // escaped newlines in json strings should be readable
3389 // in the stderr files. There's no point int being correct,
3390 // since only humans process the stderr files.
3391 // Thus we just turn escaped newlines back into newlines.
3392 normalized = normalized.replace("\\n", "\n");
3395 // If there are `$SRC_DIR` normalizations with line and column numbers, then replace them
3396 // with placeholders as we do not want tests needing updated when compiler source code
3398 // eg. $SRC_DIR/libcore/mem.rs:323:14 becomes $SRC_DIR/libcore/mem.rs:LL:COL
3399 normalized = Regex::new("SRC_DIR(.+):\\d+:\\d+").unwrap()
3400 .replace_all(&normalized, "SRC_DIR$1:LL:COL").into_owned();
3402 normalized = Self::normalize_platform_differences(&normalized);
3403 normalized = normalized.replace("\t", "\\t"); // makes tabs visible
3405 // Remove test annotations like `//~ ERROR text` from the output,
3406 // since they duplicate actual errors and make the output hard to read.
3407 normalized = Regex::new("\\s*//(\\[.*\\])?~.*").unwrap()
3408 .replace_all(&normalized, "").into_owned();
3410 for rule in custom_rules {
3411 let re = Regex::new(&rule.0).expect("bad regex in custom normalization rule");
3412 normalized = re.replace_all(&normalized, &rule.1[..]).into_owned();
3417 /// Normalize output differences across platforms. Generally changes Windows output to be more
3420 /// Replaces backslashes in paths with forward slashes, and replaces CRLF line endings
3422 fn normalize_platform_differences(output: &str) -> String {
3424 /// Used to find Windows paths.
3426 /// It's not possible to detect paths in the error messages generally, but this is a
3427 /// decent enough heuristic.
3428 static ref PATH_BACKSLASH_RE: Regex = Regex::new(r#"(?x)
3430 # Match paths that don't include spaces.
3431 (?:\\[\pL\pN\.\-_']+)+\.\pL+
3433 # If the path starts with a well-known root, then allow spaces.
3434 \$(?:DIR|SRC_DIR|TEST_BUILD_DIR|BUILD_DIR|LIB_DIR)(?:\\[\pL\pN\.\-_' ]+)+
3439 let output = output.replace(r"\\", r"\");
3441 PATH_BACKSLASH_RE.replace_all(&output, |caps: &Captures<'_>| {
3442 println!("{}", &caps[0]);
3443 caps[0].replace(r"\", "/")
3444 }).replace("\r\n", "\n")
3447 fn expected_output_path(&self, kind: &str) -> PathBuf {
3448 let mut path = expected_output_path(
3451 &self.config.compare_mode,
3456 if let Some(CompareMode::Polonius) = self.config.compare_mode {
3457 path = expected_output_path(
3460 &Some(CompareMode::Nll),
3467 path = expected_output_path(&self.testpaths, self.revision, &None, kind);
3473 fn load_expected_output(&self, kind: &str) -> String {
3474 let path = self.expected_output_path(kind);
3476 match self.load_expected_output_from_path(&path) {
3478 Err(x) => self.fatal(&x),
3485 fn load_expected_output_from_path(&self, path: &Path) -> Result<String, String> {
3486 fs::read_to_string(path).map_err(|err| {
3487 format!("failed to load expected output from `{}`: {}", path.display(), err)
3491 fn delete_file(&self, file: &PathBuf) {
3492 if let Err(e) = fs::remove_file(file) {
3493 self.fatal(&format!(
3494 "failed to delete `{}`: {}",
3501 fn compare_output(&self, kind: &str, actual: &str, expected: &str) -> usize {
3502 if actual == expected {
3506 if !self.config.bless {
3507 if expected.is_empty() {
3508 println!("normalized {}:\n{}\n", kind, actual);
3510 println!("diff of {}:\n", kind);
3511 let diff_results = make_diff(expected, actual, 3);
3512 for result in diff_results {
3513 let mut line_number = result.line_number;
3514 for line in result.lines {
3516 DiffLine::Expected(e) => {
3517 println!("-\t{}", e);
3520 DiffLine::Context(c) => {
3521 println!("{}\t{}", line_number, c);
3524 DiffLine::Resulting(r) => {
3525 println!("+\t{}", r);
3534 let mode = self.config.compare_mode.as_ref().map_or("", |m| m.to_str());
3535 let output_file = self
3537 .with_extra_extension(self.revision.unwrap_or(""))
3538 .with_extra_extension(mode)
3539 .with_extra_extension(kind);
3541 let mut files = vec![output_file];
3542 if self.config.bless {
3543 files.push(expected_output_path(
3546 &self.config.compare_mode,
3551 for output_file in &files {
3552 if actual.is_empty() {
3553 self.delete_file(output_file);
3554 } else if let Err(err) = fs::write(&output_file, &actual) {
3555 self.fatal(&format!(
3556 "failed to write {} to `{}`: {}",
3558 output_file.display(),
3564 println!("\nThe actual {0} differed from the expected {0}.", kind);
3565 for output_file in files {
3566 println!("Actual {} saved to {}", kind, output_file.display());
3568 if self.config.bless {
3575 fn prune_duplicate_output(&self, mode: CompareMode, kind: &str, canon_content: &str) {
3576 let examined_path = expected_output_path(
3583 let examined_content = self
3584 .load_expected_output_from_path(&examined_path)
3585 .unwrap_or_else(|_| String::new());
3587 if examined_path.exists() && canon_content == &examined_content {
3588 self.delete_file(&examined_path);
3592 fn prune_duplicate_outputs(&self, modes: &[CompareMode]) {
3593 if self.config.bless {
3594 for kind in UI_EXTENSIONS {
3595 let canon_comparison_path = expected_output_path(
3602 if let Ok(canon) = self.load_expected_output_from_path(&canon_comparison_path) {
3604 self.prune_duplicate_output(mode.clone(), kind, &canon);
3611 fn create_stamp(&self) {
3612 let stamp = crate::stamp(&self.config, self.testpaths, self.revision);
3613 fs::write(&stamp, compute_stamp_hash(&self.config)).unwrap();
3622 pub struct ProcRes {
3630 pub fn fatal(&self, err: Option<&str>) -> ! {
3631 if let Some(e) = err {
3632 println!("\nerror: {}", e);
3639 ------------------------------------------\n\
3641 ------------------------------------------\n\
3643 ------------------------------------------\n\
3645 ------------------------------------------\n\
3647 self.status, self.cmdline,
3648 json::extract_rendered(&self.stdout),
3649 json::extract_rendered(&self.stderr),
3651 // Use resume_unwind instead of panic!() to prevent a panic message + backtrace from
3652 // compiletest, which is unnecessary noise.
3653 std::panic::resume_unwind(Box::new(()));
3657 enum TargetLocation {
3659 ThisDirectory(PathBuf),
3662 #[derive(Clone, PartialEq, Eq)]
3663 enum ExpectedLine<T: AsRef<str>> {
3668 impl<T> fmt::Debug for ExpectedLine<T>
3670 T: AsRef<str> + fmt::Debug,
3672 fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
3673 if let &ExpectedLine::Text(ref t) = self {
3674 write!(formatter, "{:?}", t)
3676 write!(formatter, "\"...\" (Elision)")
3681 fn normalize_mir_line(line: &str) -> String {
3682 nocomment_mir_line(line).replace(char::is_whitespace, "")
3685 fn nocomment_mir_line(line: &str) -> &str {
3686 if let Some(idx) = line.find("//") {
3687 let (l, _) = line.split_at(idx);
3694 fn read2_abbreviated(mut child: Child) -> io::Result<Output> {
3695 use crate::read2::read2;
3696 use std::mem::replace;
3698 const HEAD_LEN: usize = 160 * 1024;
3699 const TAIL_LEN: usize = 256 * 1024;
3711 fn extend(&mut self, data: &[u8]) {
3712 let new_self = match *self {
3713 ProcOutput::Full(ref mut bytes) => {
3714 bytes.extend_from_slice(data);
3715 let new_len = bytes.len();
3716 if new_len <= HEAD_LEN + TAIL_LEN {
3719 let tail = bytes.split_off(new_len - TAIL_LEN).into_boxed_slice();
3720 let head = replace(bytes, Vec::new());
3721 let skipped = new_len - HEAD_LEN - TAIL_LEN;
3722 ProcOutput::Abbreviated {
3728 ProcOutput::Abbreviated {
3733 *skipped += data.len();
3734 if data.len() <= TAIL_LEN {
3735 tail[..data.len()].copy_from_slice(data);
3736 tail.rotate_left(data.len());
3738 tail.copy_from_slice(&data[(data.len() - TAIL_LEN)..]);
3746 fn into_bytes(self) -> Vec<u8> {
3748 ProcOutput::Full(bytes) => bytes,
3749 ProcOutput::Abbreviated {
3754 write!(&mut head, "\n\n<<<<<< SKIPPED {} BYTES >>>>>>\n\n", skipped).unwrap();
3755 head.extend_from_slice(&tail);
3762 let mut stdout = ProcOutput::Full(Vec::new());
3763 let mut stderr = ProcOutput::Full(Vec::new());
3765 drop(child.stdin.take());
3767 child.stdout.take().unwrap(),
3768 child.stderr.take().unwrap(),
3769 &mut |is_stdout, data, _| {
3770 if is_stdout { &mut stdout } else { &mut stderr }.extend(data);
3774 let status = child.wait()?;
3778 stdout: stdout.into_bytes(),
3779 stderr: stderr.into_bytes(),