2 use std::cell::{Cell, RefCell};
3 use std::collections::BTreeSet;
4 use std::collections::HashMap;
10 use std::path::{Path, PathBuf};
11 use std::process::Command;
12 use std::time::{Duration, Instant};
16 use crate::cache::{Cache, Interned, INTERNER};
21 use crate::flags::Subcommand;
26 use crate::util::{self, add_lib_path, exe, libdir};
27 use crate::{Build, DocTests, Mode, GitRepo};
29 pub use crate::Compiler;
31 use petgraph::graph::NodeIndex;
34 pub struct Builder<'a> {
39 stack: RefCell<Vec<Box<dyn Any>>>,
40 time_spent_on_dependencies: Cell<Duration>,
41 pub paths: Vec<PathBuf>,
42 graph_nodes: RefCell<HashMap<String, NodeIndex>>,
43 graph: RefCell<Graph<String, bool>>,
44 parent: Cell<Option<NodeIndex>>,
47 impl<'a> Deref for Builder<'a> {
50 fn deref(&self) -> &Self::Target {
55 pub trait Step: 'static + Clone + Debug + PartialEq + Eq + Hash {
56 /// `PathBuf` when directories are created or to return a `Compiler` once
57 /// it's been assembled.
60 const DEFAULT: bool = false;
62 /// Run this rule for all hosts without cross compiling.
63 const ONLY_HOSTS: bool = false;
65 /// Primary function to execute this rule. Can call `builder.ensure()`
66 /// with other steps to run those.
67 fn run(self, builder: &Builder<'_>) -> Self::Output;
69 /// When bootstrap is passed a set of paths, this controls whether this rule
70 /// will execute. However, it does not get called in a "default" context
71 /// when we are not passed any paths; in that case, `make_run` is called
73 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_>;
75 /// Builds up a "root" rule, either as a default rule or from a path passed
78 /// When path is `None`, we are executing in a context where no paths were
79 /// passed. When `./x.py build` is run, for example, this rule could get
80 /// called if it is in the correct list below with a path of `None`.
81 fn make_run(_run: RunConfig<'_>) {
82 // It is reasonable to not have an implementation of make_run for rules
83 // who do not want to get called from the root context. This means that
84 // they are likely dependencies (e.g., sysroot creation) or similar, and
85 // as such calling them from ./x.py isn't logical.
90 pub struct RunConfig<'a> {
91 pub builder: &'a Builder<'a>,
92 pub host: Interned<String>,
93 pub target: Interned<String>,
97 struct StepDescription {
100 should_run: fn(ShouldRun<'_>) -> ShouldRun<'_>,
101 make_run: fn(RunConfig<'_>),
105 #[derive(Debug, Clone, PartialOrd, Ord, PartialEq, Eq)]
107 Set(BTreeSet<PathBuf>),
112 fn empty() -> PathSet {
113 PathSet::Set(BTreeSet::new())
116 fn one<P: Into<PathBuf>>(path: P) -> PathSet {
117 let mut set = BTreeSet::new();
118 set.insert(path.into());
122 fn has(&self, needle: &Path) -> bool {
124 PathSet::Set(set) => set.iter().any(|p| p.ends_with(needle)),
125 PathSet::Suite(suite) => suite.ends_with(needle),
129 fn path(&self, builder: &Builder<'_>) -> PathBuf {
131 PathSet::Set(set) => set
134 .unwrap_or(&builder.build.src)
136 PathSet::Suite(path) => PathBuf::from(path),
141 impl StepDescription {
142 fn from<S: Step>() -> StepDescription {
145 only_hosts: S::ONLY_HOSTS,
146 should_run: S::should_run,
147 make_run: S::make_run,
148 name: unsafe { ::std::intrinsics::type_name::<S>() },
152 fn maybe_run(&self, builder: &Builder<'_>, pathset: &PathSet) {
153 if builder.config.exclude.iter().any(|e| pathset.has(e)) {
154 eprintln!("Skipping {:?} because it is excluded", pathset);
156 } else if !builder.config.exclude.is_empty() {
158 "{:?} not skipped for {:?} -- not in {:?}",
159 pathset, self.name, builder.config.exclude
162 let hosts = &builder.hosts;
164 // Determine the targets participating in this rule.
165 let targets = if self.only_hosts {
166 if !builder.config.run_host_only {
167 return; // don't run anything
176 for target in targets {
177 let run = RunConfig {
179 path: pathset.path(builder),
183 (self.make_run)(run);
188 fn run(v: &[StepDescription], builder: &Builder<'_>, paths: &[PathBuf]) {
191 .map(|desc| (desc.should_run)(ShouldRun::new(builder)))
192 .collect::<Vec<_>>();
194 // sanity checks on rules
195 for (desc, should_run) in v.iter().zip(&should_runs) {
197 !should_run.paths.is_empty(),
198 "{:?} should have at least one pathset",
203 if paths.is_empty() {
204 for (desc, should_run) in v.iter().zip(should_runs) {
205 if desc.default && should_run.is_really_default {
206 for pathset in &should_run.paths {
207 desc.maybe_run(builder, pathset);
213 // strip CurDir prefix if present
214 let path = match path.strip_prefix(".") {
219 let mut attempted_run = false;
220 for (desc, should_run) in v.iter().zip(&should_runs) {
221 if let Some(suite) = should_run.is_suite_path(path) {
222 attempted_run = true;
223 desc.maybe_run(builder, suite);
224 } else if let Some(pathset) = should_run.pathset_for_path(path) {
225 attempted_run = true;
226 desc.maybe_run(builder, pathset);
231 panic!("Error: no rules matched {}.", path.display());
239 pub struct ShouldRun<'a> {
240 pub builder: &'a Builder<'a>,
241 // use a BTreeSet to maintain sort order
242 paths: BTreeSet<PathSet>,
244 // If this is a default rule, this is an additional constraint placed on
245 // its run. Generally something like compiler docs being enabled.
246 is_really_default: bool,
249 impl<'a> ShouldRun<'a> {
250 fn new(builder: &'a Builder<'_>) -> ShouldRun<'a> {
253 paths: BTreeSet::new(),
254 is_really_default: true, // by default no additional conditions
258 pub fn default_condition(mut self, cond: bool) -> Self {
259 self.is_really_default = cond;
263 // Unlike `krate` this will create just one pathset. As such, it probably shouldn't actually
264 // ever be used, but as we transition to having all rules properly handle passing krate(...) by
265 // actually doing something different for every crate passed.
266 pub fn all_krates(mut self, name: &str) -> Self {
267 let mut set = BTreeSet::new();
268 for krate in self.builder.in_tree_crates(name) {
269 set.insert(PathBuf::from(&krate.path));
271 self.paths.insert(PathSet::Set(set));
275 pub fn krate(mut self, name: &str) -> Self {
276 for krate in self.builder.in_tree_crates(name) {
277 self.paths.insert(PathSet::one(&krate.path));
282 // single, non-aliased path
283 pub fn path(self, path: &str) -> Self {
287 // multiple aliases for the same job
288 pub fn paths(mut self, paths: &[&str]) -> Self {
290 .insert(PathSet::Set(paths.iter().map(PathBuf::from).collect()));
294 pub fn is_suite_path(&self, path: &Path) -> Option<&PathSet> {
295 self.paths.iter().find(|pathset| match pathset {
296 PathSet::Suite(p) => path.starts_with(p),
297 PathSet::Set(_) => false,
301 pub fn suite_path(mut self, suite: &str) -> Self {
302 self.paths.insert(PathSet::Suite(PathBuf::from(suite)));
306 // allows being more explicit about why should_run in Step returns the value passed to it
307 pub fn never(mut self) -> ShouldRun<'a> {
308 self.paths.insert(PathSet::empty());
312 fn pathset_for_path(&self, path: &Path) -> Option<&PathSet> {
313 self.paths.iter().find(|pathset| pathset.has(path))
317 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
328 impl<'a> Builder<'a> {
329 fn get_step_descriptions(kind: Kind) -> Vec<StepDescription> {
330 macro_rules! describe {
331 ($($rule:ty),+ $(,)?) => {{
332 vec![$(StepDescription::from::<$rule>()),+]
336 Kind::Build => describe!(
340 compile::CodegenBackend,
341 compile::StartupObjects,
345 tool::UnstableBookGen,
350 tool::RemoteTestServer,
351 tool::RemoteTestClient,
362 Kind::Check => describe!(
366 check::CodegenBackend,
369 Kind::Test => describe!(
375 test::RunPassValgrind,
383 test::RunPassFullDeps,
388 test::RunPassValgrindPretty,
398 test::RunMakeFullDeps,
411 test::CompiletestTest,
413 test::RustdocJSNotStd,
416 // Run bootstrap close to the end as it's unlikely to fail
418 // Run run-make last, since these won't pass without make on Windows
421 Kind::Bench => describe!(test::Crate, test::CrateLibrustc),
422 Kind::Doc => describe!(
424 doc::UnstableBookGen,
429 doc::WhitelistedRustc,
442 Kind::Dist => describe!(
447 dist::DebuggerScripts,
451 dist::PlainSourceTarball,
462 Kind::Install => describe!(
477 pub fn get_help(build: &Build, subcommand: &str) -> Option<String> {
478 let kind = match subcommand {
479 "build" => Kind::Build,
481 "test" => Kind::Test,
482 "bench" => Kind::Bench,
483 "dist" => Kind::Dist,
484 "install" => Kind::Install,
488 let builder = Builder {
490 top_stage: build.config.stage.unwrap_or(2),
493 stack: RefCell::new(Vec::new()),
494 time_spent_on_dependencies: Cell::new(Duration::new(0, 0)),
496 graph_nodes: RefCell::new(HashMap::new()),
497 graph: RefCell::new(Graph::new()),
498 parent: Cell::new(None),
501 let builder = &builder;
502 let mut should_run = ShouldRun::new(builder);
503 for desc in Builder::get_step_descriptions(builder.kind) {
504 should_run = (desc.should_run)(should_run);
506 let mut help = String::from("Available paths:\n");
507 for pathset in should_run.paths {
508 if let PathSet::Set(set) = pathset {
509 set.iter().for_each(|path| {
511 format!(" ./x.py {} {}\n", subcommand, path.display()).as_str(),
519 pub fn new(build: &Build) -> Builder<'_> {
520 let (kind, paths) = match build.config.cmd {
521 Subcommand::Build { ref paths } => (Kind::Build, &paths[..]),
522 Subcommand::Check { ref paths } => (Kind::Check, &paths[..]),
523 Subcommand::Doc { ref paths } => (Kind::Doc, &paths[..]),
524 Subcommand::Test { ref paths, .. } => (Kind::Test, &paths[..]),
525 Subcommand::Bench { ref paths, .. } => (Kind::Bench, &paths[..]),
526 Subcommand::Dist { ref paths } => (Kind::Dist, &paths[..]),
527 Subcommand::Install { ref paths } => (Kind::Install, &paths[..]),
528 Subcommand::Clean { .. } => panic!(),
531 let builder = Builder {
533 top_stage: build.config.stage.unwrap_or(2),
536 stack: RefCell::new(Vec::new()),
537 time_spent_on_dependencies: Cell::new(Duration::new(0, 0)),
538 paths: paths.to_owned(),
539 graph_nodes: RefCell::new(HashMap::new()),
540 graph: RefCell::new(Graph::new()),
541 parent: Cell::new(None),
544 if kind == Kind::Dist {
546 !builder.config.test_miri,
547 "Do not distribute with miri enabled.\n\
548 The distributed libraries would include all MIR (increasing binary size).
549 The distributed MIR would include validation statements."
556 pub fn execute_cli(&self) -> Graph<String, bool> {
557 self.run_step_descriptions(&Builder::get_step_descriptions(self.kind), &self.paths);
558 self.graph.borrow().clone()
561 pub fn default_doc(&self, paths: Option<&[PathBuf]>) {
562 let paths = paths.unwrap_or(&[]);
563 self.run_step_descriptions(&Builder::get_step_descriptions(Kind::Doc), paths);
566 fn run_step_descriptions(&self, v: &[StepDescription], paths: &[PathBuf]) {
567 StepDescription::run(v, self, paths);
570 /// Obtain a compiler at a given stage and for a given host. Explicitly does
571 /// not take `Compiler` since all `Compiler` instances are meant to be
572 /// obtained through this function, since it ensures that they are valid
573 /// (i.e., built and assembled).
574 pub fn compiler(&self, stage: u32, host: Interned<String>) -> Compiler {
575 self.ensure(compile::Assemble {
576 target_compiler: Compiler { stage, host },
580 pub fn sysroot(&self, compiler: Compiler) -> Interned<PathBuf> {
581 self.ensure(compile::Sysroot { compiler })
584 /// Returns the libdir where the standard library and other artifacts are
585 /// found for a compiler's sysroot.
586 pub fn sysroot_libdir(
589 target: Interned<String>,
590 ) -> Interned<PathBuf> {
591 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
594 target: Interned<String>,
596 impl Step for Libdir {
597 type Output = Interned<PathBuf>;
599 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
603 fn run(self, builder: &Builder<'_>) -> Interned<PathBuf> {
604 let compiler = self.compiler;
605 let config = &builder.build.config;
606 let lib = if compiler.stage >= 1 && config.libdir_relative().is_some() {
607 builder.build.config.libdir_relative().unwrap()
611 let sysroot = builder
612 .sysroot(self.compiler)
617 let _ = fs::remove_dir_all(&sysroot);
618 t!(fs::create_dir_all(&sysroot));
619 INTERNER.intern_path(sysroot)
622 self.ensure(Libdir { compiler, target })
625 pub fn sysroot_codegen_backends(&self, compiler: Compiler) -> PathBuf {
626 self.sysroot_libdir(compiler, compiler.host)
627 .with_file_name(self.config.rust_codegen_backends_dir.clone())
630 /// Returns the compiler's libdir where it stores the dynamic libraries that
631 /// it itself links against.
633 /// For example this returns `<sysroot>/lib` on Unix and `<sysroot>/bin` on
635 pub fn rustc_libdir(&self, compiler: Compiler) -> PathBuf {
636 if compiler.is_snapshot(self) {
637 self.rustc_snapshot_libdir()
639 match self.config.libdir_relative() {
640 Some(relative_libdir) if compiler.stage >= 1
641 => self.sysroot(compiler).join(relative_libdir),
642 _ => self.sysroot(compiler).join(libdir(&compiler.host))
647 /// Returns the compiler's relative libdir where it stores the dynamic libraries that
648 /// it itself links against.
650 /// For example this returns `lib` on Unix and `bin` on
652 pub fn libdir_relative(&self, compiler: Compiler) -> &Path {
653 if compiler.is_snapshot(self) {
654 libdir(&self.config.build).as_ref()
656 match self.config.libdir_relative() {
657 Some(relative_libdir) if compiler.stage >= 1
659 _ => libdir(&compiler.host).as_ref()
664 /// Adds the compiler's directory of dynamic libraries to `cmd`'s dynamic
665 /// library lookup path.
666 pub fn add_rustc_lib_path(&self, compiler: Compiler, cmd: &mut Command) {
667 // Windows doesn't need dylib path munging because the dlls for the
668 // compiler live next to the compiler and the system will find them
674 add_lib_path(vec![self.rustc_libdir(compiler)], cmd);
677 /// Gets a path to the compiler specified.
678 pub fn rustc(&self, compiler: Compiler) -> PathBuf {
679 if compiler.is_snapshot(self) {
680 self.initial_rustc.clone()
682 self.sysroot(compiler)
684 .join(exe("rustc", &compiler.host))
688 /// Gets the paths to all of the compiler's codegen backends.
689 fn codegen_backends(&self, compiler: Compiler) -> impl Iterator<Item = PathBuf> {
690 fs::read_dir(self.sysroot_codegen_backends(compiler))
693 .filter_map(Result::ok)
694 .map(|entry| entry.path())
697 pub fn rustdoc(&self, compiler: Compiler) -> PathBuf {
698 self.ensure(tool::Rustdoc { compiler })
701 pub fn rustdoc_cmd(&self, compiler: Compiler) -> Command {
702 let mut cmd = Command::new(&self.out.join("bootstrap/debug/rustdoc"));
703 cmd.env("RUSTC_STAGE", compiler.stage.to_string())
704 .env("RUSTC_SYSROOT", self.sysroot(compiler))
705 // Note that this is *not* the sysroot_libdir because rustdoc must be linked
706 // equivalently to rustc.
707 .env("RUSTDOC_LIBDIR", self.rustc_libdir(compiler))
708 .env("CFG_RELEASE_CHANNEL", &self.config.channel)
709 .env("RUSTDOC_REAL", self.rustdoc(compiler))
710 .env("RUSTDOC_CRATE_VERSION", self.rust_version())
711 .env("RUSTC_BOOTSTRAP", "1");
713 // Remove make-related flags that can cause jobserver problems.
714 cmd.env_remove("MAKEFLAGS");
715 cmd.env_remove("MFLAGS");
717 if let Some(linker) = self.linker(compiler.host) {
718 cmd.env("RUSTC_TARGET_LINKER", linker);
723 /// Prepares an invocation of `cargo` to be run.
725 /// This will create a `Command` that represents a pending execution of
726 /// Cargo. This cargo will be configured to use `compiler` as the actual
727 /// rustc compiler, its output will be scoped by `mode`'s output directory,
728 /// it will pass the `--target` flag for the specified `target`, and will be
729 /// executing the Cargo command `cmd`.
734 target: Interned<String>,
737 let mut cargo = Command::new(&self.initial_cargo);
738 let out_dir = self.stage_out(compiler, mode);
740 // command specific path, we call clear_if_dirty with this
741 let mut my_out = match cmd {
742 "build" => self.cargo_out(compiler, mode, target),
744 // This is the intended out directory for crate documentation.
745 "doc" | "rustdoc" => self.crate_doc_out(target),
747 _ => self.stage_out(compiler, mode),
750 // This is for the original compiler, but if we're forced to use stage 1, then
751 // std/test/rustc stamps won't exist in stage 2, so we need to get those from stage 1, since
752 // we copy the libs forward.
753 let cmp = if self.force_use_stage1(compiler, target) {
754 self.compiler(1, compiler.host)
759 let libstd_stamp = match cmd {
760 "check" => check::libstd_stamp(self, cmp, target),
761 _ => compile::libstd_stamp(self, cmp, target),
764 let libtest_stamp = match cmd {
765 "check" => check::libtest_stamp(self, cmp, target),
766 _ => compile::libstd_stamp(self, cmp, target),
769 let librustc_stamp = match cmd {
770 "check" => check::librustc_stamp(self, cmp, target),
771 _ => compile::librustc_stamp(self, cmp, target),
774 if cmd == "doc" || cmd == "rustdoc" {
775 if mode == Mode::Rustc || mode == Mode::ToolRustc || mode == Mode::Codegen {
776 // This is the intended out directory for compiler documentation.
777 my_out = self.compiler_doc_out(target);
779 let rustdoc = self.rustdoc(compiler);
780 self.clear_if_dirty(&my_out, &rustdoc);
781 } else if cmd != "test" {
784 self.clear_if_dirty(&my_out, &self.rustc(compiler));
785 for backend in self.codegen_backends(compiler) {
786 self.clear_if_dirty(&my_out, &backend);
790 self.clear_if_dirty(&my_out, &libstd_stamp);
793 self.clear_if_dirty(&my_out, &self.rustc(compiler));
794 self.clear_if_dirty(&my_out, &libstd_stamp);
795 self.clear_if_dirty(&my_out, &libtest_stamp);
798 self.clear_if_dirty(&my_out, &librustc_stamp);
800 Mode::ToolBootstrap => { },
802 self.clear_if_dirty(&my_out, &libstd_stamp);
805 self.clear_if_dirty(&my_out, &libstd_stamp);
806 self.clear_if_dirty(&my_out, &libtest_stamp);
809 self.clear_if_dirty(&my_out, &libstd_stamp);
810 self.clear_if_dirty(&my_out, &libtest_stamp);
811 self.clear_if_dirty(&my_out, &librustc_stamp);
817 .env("CARGO_TARGET_DIR", out_dir)
820 // See comment in librustc_llvm/build.rs for why this is necessary, largely llvm-config
821 // needs to not accidentally link to libLLVM in stage0/lib.
822 cargo.env("REAL_LIBRARY_PATH_VAR", &util::dylib_path_var());
823 if let Some(e) = env::var_os(util::dylib_path_var()) {
824 cargo.env("REAL_LIBRARY_PATH", e);
827 if cmd != "install" {
828 cargo.arg("--target")
831 assert_eq!(target, compiler.host);
834 // Set a flag for `check` so that certain build scripts can do less work
835 // (e.g., not building/requiring LLVM).
837 cargo.env("RUST_CHECK", "1");
841 Mode::Std | Mode::Test | Mode::ToolBootstrap | Mode::ToolStd | Mode::ToolTest=> {},
842 Mode::Rustc | Mode::Codegen | Mode::ToolRustc => {
843 // Build proc macros both for the host and the target
844 if target != compiler.host && cmd != "check" {
845 cargo.arg("-Zdual-proc-macros");
846 cargo.env("RUST_DUAL_PROC_MACROS", "1");
851 cargo.arg("-j").arg(self.jobs().to_string());
852 // Remove make-related flags to ensure Cargo can correctly set things up
853 cargo.env_remove("MAKEFLAGS");
854 cargo.env_remove("MFLAGS");
856 // FIXME: Temporary fix for https://github.com/rust-lang/cargo/issues/3005
857 // Force cargo to output binaries with disambiguating hashes in the name
858 let mut metadata = if compiler.stage == 0 {
859 // Treat stage0 like a special channel, whether it's a normal prior-
860 // release rustc or a local rebuild with the same version, so we
861 // never mix these libraries by accident.
862 "bootstrap".to_string()
864 self.config.channel.to_string()
866 // We want to make sure that none of the dependencies between
867 // std/test/rustc unify with one another. This is done for weird linkage
868 // reasons but the gist of the problem is that if librustc, libtest, and
869 // libstd all depend on libc from crates.io (which they actually do) we
870 // want to make sure they all get distinct versions. Things get really
871 // weird if we try to unify all these dependencies right now, namely
872 // around how many times the library is linked in dynamic libraries and
873 // such. If rustc were a static executable or if we didn't ship dylibs
874 // this wouldn't be a problem, but we do, so it is. This is in general
875 // just here to make sure things build right. If you can remove this and
876 // things still build right, please do!
878 Mode::Std => metadata.push_str("std"),
879 Mode::Test => metadata.push_str("test"),
882 cargo.env("__CARGO_DEFAULT_LIB_METADATA", &metadata);
885 if compiler.stage == 0 && self.local_rebuild {
886 // Assume the local-rebuild rustc already has stage1 features.
889 stage = compiler.stage;
892 let mut extra_args = env::var(&format!("RUSTFLAGS_STAGE_{}", stage)).unwrap_or_default();
894 let s = env::var("RUSTFLAGS_STAGE_NOT_0").unwrap_or_default();
895 if !extra_args.is_empty() {
896 extra_args.push_str(" ");
898 extra_args.push_str(&s);
901 if !extra_args.is_empty() {
906 env::var("RUSTFLAGS").unwrap_or_default(),
912 let want_rustdoc = self.doc_tests != DocTests::No;
914 // We synthetically interpret a stage0 compiler used to build tools as a
915 // "raw" compiler in that it's the exact snapshot we download. Normally
916 // the stage0 build means it uses libraries build by the stage0
917 // compiler, but for tools we just use the precompiled libraries that
919 let use_snapshot = mode == Mode::ToolBootstrap;
920 assert!(!use_snapshot || stage == 0 || self.local_rebuild);
922 let maybe_sysroot = self.sysroot(compiler);
923 let sysroot = if use_snapshot {
924 self.rustc_snapshot_sysroot()
928 let libdir = self.rustc_libdir(compiler);
930 // Customize the compiler we're running. Specify the compiler to cargo
931 // as our shim and then pass it some various options used to configure
932 // how the actual compiler itself is called.
934 // These variables are primarily all read by
935 // src/bootstrap/bin/{rustc.rs,rustdoc.rs}
937 .env("RUSTBUILD_NATIVE_DIR", self.native_dir(target))
938 .env("RUSTC", self.out.join("bootstrap/debug/rustc"))
939 .env("RUSTC_REAL", self.rustc(compiler))
940 .env("RUSTC_STAGE", stage.to_string())
942 "RUSTC_DEBUG_ASSERTIONS",
943 self.config.rust_debug_assertions.to_string(),
945 .env("RUSTC_SYSROOT", &sysroot)
946 .env("RUSTC_LIBDIR", &libdir)
947 .env("RUSTC_RPATH", self.config.rust_rpath.to_string())
948 .env("RUSTDOC", self.out.join("bootstrap/debug/rustdoc"))
951 if cmd == "doc" || cmd == "rustdoc" || (cmd == "test" && want_rustdoc) {
952 self.rustdoc(compiler)
954 PathBuf::from("/path/to/nowhere/rustdoc/not/required")
957 .env("TEST_MIRI", self.config.test_miri.to_string())
958 .env("RUSTC_ERROR_METADATA_DST", self.extended_error_dir());
960 if let Some(host_linker) = self.linker(compiler.host) {
961 cargo.env("RUSTC_HOST_LINKER", host_linker);
963 if let Some(target_linker) = self.linker(target) {
964 cargo.env("RUSTC_TARGET_LINKER", target_linker);
966 if let Some(ref error_format) = self.config.rustc_error_format {
967 cargo.env("RUSTC_ERROR_FORMAT", error_format);
969 if cmd != "build" && cmd != "check" && cmd != "rustc" && want_rustdoc {
970 cargo.env("RUSTDOC_LIBDIR", self.rustc_libdir(compiler));
973 let debuginfo_level = match mode {
974 Mode::Rustc | Mode::Codegen => self.config.rust_debuginfo_level_rustc,
975 Mode::Std | Mode::Test => self.config.rust_debuginfo_level_std,
976 Mode::ToolBootstrap | Mode::ToolStd |
977 Mode::ToolTest | Mode::ToolRustc => self.config.rust_debuginfo_level_tools,
979 cargo.env("RUSTC_DEBUGINFO_LEVEL", debuginfo_level.to_string());
982 cargo.env("RUSTC_FORCE_UNSTABLE", "1");
984 // Currently the compiler depends on crates from crates.io, and
985 // then other crates can depend on the compiler (e.g., proc-macro
986 // crates). Let's say, for example that rustc itself depends on the
987 // bitflags crate. If an external crate then depends on the
988 // bitflags crate as well, we need to make sure they don't
989 // conflict, even if they pick the same version of bitflags. We'll
990 // want to make sure that e.g., a plugin and rustc each get their
991 // own copy of bitflags.
993 // Cargo ensures that this works in general through the -C metadata
994 // flag. This flag will frob the symbols in the binary to make sure
995 // they're different, even though the source code is the exact
996 // same. To solve this problem for the compiler we extend Cargo's
997 // already-passed -C metadata flag with our own. Our rustc.rs
998 // wrapper around the actual rustc will detect -C metadata being
999 // passed and frob it with this extra string we're passing in.
1000 cargo.env("RUSTC_METADATA_SUFFIX", "rustc");
1003 if let Some(x) = self.crt_static(target) {
1004 cargo.env("RUSTC_CRT_STATIC", x.to_string());
1007 if let Some(x) = self.crt_static(compiler.host) {
1008 cargo.env("RUSTC_HOST_CRT_STATIC", x.to_string());
1011 if let Some(map) = self.build.debuginfo_map(GitRepo::Rustc) {
1012 cargo.env("RUSTC_DEBUGINFO_MAP", map);
1015 // Enable usage of unstable features
1016 cargo.env("RUSTC_BOOTSTRAP", "1");
1017 self.add_rust_test_threads(&mut cargo);
1019 // Almost all of the crates that we compile as part of the bootstrap may
1020 // have a build script, including the standard library. To compile a
1021 // build script, however, it itself needs a standard library! This
1022 // introduces a bit of a pickle when we're compiling the standard
1025 // To work around this we actually end up using the snapshot compiler
1026 // (stage0) for compiling build scripts of the standard library itself.
1027 // The stage0 compiler is guaranteed to have a libstd available for use.
1029 // For other crates, however, we know that we've already got a standard
1030 // library up and running, so we can use the normal compiler to compile
1031 // build scripts in that situation.
1032 if mode == Mode::Std {
1034 .env("RUSTC_SNAPSHOT", &self.initial_rustc)
1035 .env("RUSTC_SNAPSHOT_LIBDIR", self.rustc_snapshot_libdir());
1038 .env("RUSTC_SNAPSHOT", self.rustc(compiler))
1039 .env("RUSTC_SNAPSHOT_LIBDIR", self.rustc_libdir(compiler));
1042 if self.config.incremental {
1043 cargo.env("CARGO_INCREMENTAL", "1");
1045 // Don't rely on any default setting for incr. comp. in Cargo
1046 cargo.env("CARGO_INCREMENTAL", "0");
1049 if let Some(ref on_fail) = self.config.on_fail {
1050 cargo.env("RUSTC_ON_FAIL", on_fail);
1053 if self.config.print_step_timings {
1054 cargo.env("RUSTC_PRINT_STEP_TIMINGS", "1");
1057 if self.config.backtrace_on_ice {
1058 cargo.env("RUSTC_BACKTRACE_ON_ICE", "1");
1061 cargo.env("RUSTC_VERBOSE", self.verbosity.to_string());
1063 if self.config.deny_warnings {
1064 cargo.env("RUSTC_DENY_WARNINGS", "1");
1067 // Throughout the build Cargo can execute a number of build scripts
1068 // compiling C/C++ code and we need to pass compilers, archivers, flags, etc
1069 // obtained previously to those build scripts.
1070 // Build scripts use either the `cc` crate or `configure/make` so we pass
1071 // the options through environment variables that are fetched and understood by both.
1073 // FIXME: the guard against msvc shouldn't need to be here
1074 if target.contains("msvc") {
1075 if let Some(ref cl) = self.config.llvm_clang_cl {
1076 cargo.env("CC", cl).env("CXX", cl);
1079 let ccache = self.config.ccache.as_ref();
1080 let ccacheify = |s: &Path| {
1081 let ccache = match ccache {
1083 None => return s.display().to_string(),
1085 // FIXME: the cc-rs crate only recognizes the literal strings
1086 // `ccache` and `sccache` when doing caching compilations, so we
1087 // mirror that here. It should probably be fixed upstream to
1088 // accept a new env var or otherwise work with custom ccache
1091 "ccache" | "sccache" => format!("{} {}", ccache, s.display()),
1092 _ => s.display().to_string(),
1095 let cc = ccacheify(&self.cc(target));
1096 cargo.env(format!("CC_{}", target), &cc);
1098 let cflags = self.cflags(target, GitRepo::Rustc).join(" ");
1100 .env(format!("CFLAGS_{}", target), cflags.clone());
1102 if let Some(ar) = self.ar(target) {
1103 let ranlib = format!("{} s", ar.display());
1105 .env(format!("AR_{}", target), ar)
1106 .env(format!("RANLIB_{}", target), ranlib);
1109 if let Ok(cxx) = self.cxx(target) {
1110 let cxx = ccacheify(&cxx);
1112 .env(format!("CXX_{}", target), &cxx)
1113 .env(format!("CXXFLAGS_{}", target), cflags);
1117 if (cmd == "build" || cmd == "rustc")
1118 && mode == Mode::Std
1119 && self.config.extended
1120 && compiler.is_final_stage(self)
1122 cargo.env("RUSTC_SAVE_ANALYSIS", "api".to_string());
1125 // For `cargo doc` invocations, make rustdoc print the Rust version into the docs
1126 cargo.env("RUSTDOC_CRATE_VERSION", self.rust_version());
1128 // Environment variables *required* throughout the build
1130 // FIXME: should update code to not require this env var
1131 cargo.env("CFG_COMPILER_HOST_TRIPLE", target);
1133 // Set this for all builds to make sure doc builds also get it.
1134 cargo.env("CFG_RELEASE_CHANNEL", &self.config.channel);
1136 // This one's a bit tricky. As of the time of this writing the compiler
1137 // links to the `winapi` crate on crates.io. This crate provides raw
1138 // bindings to Windows system functions, sort of like libc does for
1139 // Unix. This crate also, however, provides "import libraries" for the
1140 // MinGW targets. There's an import library per dll in the windows
1141 // distribution which is what's linked to. These custom import libraries
1142 // are used because the winapi crate can reference Windows functions not
1143 // present in the MinGW import libraries.
1145 // For example MinGW may ship libdbghelp.a, but it may not have
1146 // references to all the functions in the dbghelp dll. Instead the
1147 // custom import library for dbghelp in the winapi crates has all this
1150 // Unfortunately for us though the import libraries are linked by
1151 // default via `-ldylib=winapi_foo`. That is, they're linked with the
1152 // `dylib` type with a `winapi_` prefix (so the winapi ones don't
1153 // conflict with the system MinGW ones). This consequently means that
1154 // the binaries we ship of things like rustc_codegen_llvm (aka the rustc_codegen_llvm
1155 // DLL) when linked against *again*, for example with procedural macros
1156 // or plugins, will trigger the propagation logic of `-ldylib`, passing
1157 // `-lwinapi_foo` to the linker again. This isn't actually available in
1158 // our distribution, however, so the link fails.
1160 // To solve this problem we tell winapi to not use its bundled import
1161 // libraries. This means that it will link to the system MinGW import
1162 // libraries by default, and the `-ldylib=foo` directives will still get
1163 // passed to the final linker, but they'll look like `-lfoo` which can
1164 // be resolved because MinGW has the import library. The downside is we
1165 // don't get newer functions from Windows, but we don't use any of them
1167 if !mode.is_tool() {
1168 cargo.env("WINAPI_NO_BUNDLED_LIBRARIES", "1");
1171 for _ in 1..self.verbosity {
1175 match (mode, self.config.rust_codegen_units_std, self.config.rust_codegen_units) {
1176 (Mode::Std, Some(n), _) |
1177 (Mode::Test, Some(n), _) |
1178 (_, _, Some(n)) => {
1179 cargo.env("RUSTC_CODEGEN_UNITS", n.to_string());
1182 // Don't set anything
1186 if self.config.rust_optimize {
1187 // FIXME: cargo bench/install do not accept `--release`
1188 if cmd != "bench" && cmd != "install" {
1189 cargo.arg("--release");
1193 if self.config.locked_deps {
1194 cargo.arg("--locked");
1196 if self.config.vendor || self.is_sudo {
1197 cargo.arg("--frozen");
1200 self.ci_env.force_coloring_in_ci(&mut cargo);
1205 /// Ensure that a given step is built, returning its output. This will
1206 /// cache the step, so it is safe (and good!) to call this as often as
1207 /// needed to ensure that all dependencies are built.
1208 pub fn ensure<S: Step>(&'a self, step: S) -> S::Output {
1210 let mut stack = self.stack.borrow_mut();
1211 for stack_step in stack.iter() {
1214 .downcast_ref::<S>()
1215 .map_or(true, |stack_step| *stack_step != step)
1219 let mut out = String::new();
1220 out += &format!("\n\nCycle in build detected when adding {:?}\n", step);
1221 for el in stack.iter().rev() {
1222 out += &format!("\t{:?}\n", el);
1226 if let Some(out) = self.cache.get(&step) {
1227 self.verbose(&format!("{}c {:?}", " ".repeat(stack.len()), step));
1230 let mut graph = self.graph.borrow_mut();
1231 let parent = self.parent.get();
1235 .entry(format!("{:?}", step))
1236 .or_insert_with(|| graph.add_node(format!("{:?}", step)));
1237 if let Some(parent) = parent {
1238 graph.add_edge(parent, us, false);
1244 self.verbose(&format!("{}> {:?}", " ".repeat(stack.len()), step));
1245 stack.push(Box::new(step.clone()));
1248 let prev_parent = self.parent.get();
1251 let mut graph = self.graph.borrow_mut();
1252 let parent = self.parent.get();
1256 .entry(format!("{:?}", step))
1257 .or_insert_with(|| graph.add_node(format!("{:?}", step)));
1258 self.parent.set(Some(us));
1259 if let Some(parent) = parent {
1260 graph.add_edge(parent, us, true);
1265 let start = Instant::now();
1266 let zero = Duration::new(0, 0);
1267 let parent = self.time_spent_on_dependencies.replace(zero);
1268 let out = step.clone().run(self);
1269 let dur = start.elapsed();
1270 let deps = self.time_spent_on_dependencies.replace(parent + dur);
1274 self.parent.set(prev_parent);
1276 if self.config.print_step_timings && dur > Duration::from_millis(100) {
1278 "[TIMING] {:?} -- {}.{:03}",
1281 dur.subsec_nanos() / 1_000_000
1286 let mut stack = self.stack.borrow_mut();
1287 let cur_step = stack.pop().expect("step stack empty");
1288 assert_eq!(cur_step.downcast_ref(), Some(&step));
1290 self.verbose(&format!(
1292 " ".repeat(self.stack.borrow().len()),
1295 self.cache.put(step, out.clone());
1303 use crate::config::Config;
1306 use pretty_assertions::assert_eq;
1308 fn configure(host: &[&str], target: &[&str]) -> Config {
1309 let mut config = Config::default_opts();
1310 // don't save toolstates
1311 config.save_toolstates = None;
1312 config.run_host_only = true;
1313 config.dry_run = true;
1314 // try to avoid spurious failures in dist where we create/delete each others file
1315 let dir = config.out.join("tmp-rustbuild-tests").join(
1318 .unwrap_or("unknown")
1321 t!(fs::create_dir_all(&dir));
1323 config.build = INTERNER.intern_str("A");
1324 config.hosts = vec![config.build]
1327 .chain(host.iter().map(|s| INTERNER.intern_str(s)))
1328 .collect::<Vec<_>>();
1329 config.targets = config
1333 .chain(target.iter().map(|s| INTERNER.intern_str(s)))
1334 .collect::<Vec<_>>();
1338 fn first<A, B>(v: Vec<(A, B)>) -> Vec<A> {
1339 v.into_iter().map(|(a, _)| a).collect::<Vec<_>>()
1343 fn dist_baseline() {
1344 let build = Build::new(configure(&[], &[]));
1345 let mut builder = Builder::new(&build);
1346 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Dist), &[]);
1348 let a = INTERNER.intern_str("A");
1351 first(builder.cache.all::<dist::Docs>()),
1352 &[dist::Docs { stage: 2, host: a },]
1355 first(builder.cache.all::<dist::Mingw>()),
1356 &[dist::Mingw { host: a },]
1359 first(builder.cache.all::<dist::Rustc>()),
1361 compiler: Compiler { host: a, stage: 2 }
1365 first(builder.cache.all::<dist::Std>()),
1367 compiler: Compiler { host: a, stage: 2 },
1371 assert_eq!(first(builder.cache.all::<dist::Src>()), &[dist::Src]);
1375 fn dist_with_targets() {
1376 let build = Build::new(configure(&[], &["B"]));
1377 let mut builder = Builder::new(&build);
1378 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Dist), &[]);
1380 let a = INTERNER.intern_str("A");
1381 let b = INTERNER.intern_str("B");
1384 first(builder.cache.all::<dist::Docs>()),
1386 dist::Docs { stage: 2, host: a },
1387 dist::Docs { stage: 2, host: b },
1391 first(builder.cache.all::<dist::Mingw>()),
1392 &[dist::Mingw { host: a }, dist::Mingw { host: b },]
1395 first(builder.cache.all::<dist::Rustc>()),
1397 compiler: Compiler { host: a, stage: 2 }
1401 first(builder.cache.all::<dist::Std>()),
1404 compiler: Compiler { host: a, stage: 2 },
1408 compiler: Compiler { host: a, stage: 2 },
1413 assert_eq!(first(builder.cache.all::<dist::Src>()), &[dist::Src]);
1417 fn dist_with_hosts() {
1418 let build = Build::new(configure(&["B"], &[]));
1419 let mut builder = Builder::new(&build);
1420 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Dist), &[]);
1422 let a = INTERNER.intern_str("A");
1423 let b = INTERNER.intern_str("B");
1426 first(builder.cache.all::<dist::Docs>()),
1428 dist::Docs { stage: 2, host: a },
1429 dist::Docs { stage: 2, host: b },
1433 first(builder.cache.all::<dist::Mingw>()),
1434 &[dist::Mingw { host: a }, dist::Mingw { host: b },]
1437 first(builder.cache.all::<dist::Rustc>()),
1440 compiler: Compiler { host: a, stage: 2 }
1443 compiler: Compiler { host: b, stage: 2 }
1448 first(builder.cache.all::<dist::Std>()),
1451 compiler: Compiler { host: a, stage: 2 },
1455 compiler: Compiler { host: a, stage: 2 },
1460 assert_eq!(first(builder.cache.all::<dist::Src>()), &[dist::Src]);
1464 fn dist_with_targets_and_hosts() {
1465 let build = Build::new(configure(&["B"], &["C"]));
1466 let mut builder = Builder::new(&build);
1467 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Dist), &[]);
1469 let a = INTERNER.intern_str("A");
1470 let b = INTERNER.intern_str("B");
1471 let c = INTERNER.intern_str("C");
1474 first(builder.cache.all::<dist::Docs>()),
1476 dist::Docs { stage: 2, host: a },
1477 dist::Docs { stage: 2, host: b },
1478 dist::Docs { stage: 2, host: c },
1482 first(builder.cache.all::<dist::Mingw>()),
1484 dist::Mingw { host: a },
1485 dist::Mingw { host: b },
1486 dist::Mingw { host: c },
1490 first(builder.cache.all::<dist::Rustc>()),
1493 compiler: Compiler { host: a, stage: 2 }
1496 compiler: Compiler { host: b, stage: 2 }
1501 first(builder.cache.all::<dist::Std>()),
1504 compiler: Compiler { host: a, stage: 2 },
1508 compiler: Compiler { host: a, stage: 2 },
1512 compiler: Compiler { host: a, stage: 2 },
1517 assert_eq!(first(builder.cache.all::<dist::Src>()), &[dist::Src]);
1521 fn dist_with_target_flag() {
1522 let mut config = configure(&["B"], &["C"]);
1523 config.run_host_only = false; // as-if --target=C was passed
1524 let build = Build::new(config);
1525 let mut builder = Builder::new(&build);
1526 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Dist), &[]);
1528 let a = INTERNER.intern_str("A");
1529 let b = INTERNER.intern_str("B");
1530 let c = INTERNER.intern_str("C");
1533 first(builder.cache.all::<dist::Docs>()),
1535 dist::Docs { stage: 2, host: a },
1536 dist::Docs { stage: 2, host: b },
1537 dist::Docs { stage: 2, host: c },
1541 first(builder.cache.all::<dist::Mingw>()),
1543 dist::Mingw { host: a },
1544 dist::Mingw { host: b },
1545 dist::Mingw { host: c },
1548 assert_eq!(first(builder.cache.all::<dist::Rustc>()), &[]);
1550 first(builder.cache.all::<dist::Std>()),
1553 compiler: Compiler { host: a, stage: 2 },
1557 compiler: Compiler { host: a, stage: 2 },
1561 compiler: Compiler { host: a, stage: 2 },
1566 assert_eq!(first(builder.cache.all::<dist::Src>()), &[]);
1570 fn dist_with_same_targets_and_hosts() {
1571 let build = Build::new(configure(&["B"], &["B"]));
1572 let mut builder = Builder::new(&build);
1573 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Dist), &[]);
1575 let a = INTERNER.intern_str("A");
1576 let b = INTERNER.intern_str("B");
1579 first(builder.cache.all::<dist::Docs>()),
1581 dist::Docs { stage: 2, host: a },
1582 dist::Docs { stage: 2, host: b },
1586 first(builder.cache.all::<dist::Mingw>()),
1587 &[dist::Mingw { host: a }, dist::Mingw { host: b },]
1590 first(builder.cache.all::<dist::Rustc>()),
1593 compiler: Compiler { host: a, stage: 2 }
1596 compiler: Compiler { host: b, stage: 2 }
1601 first(builder.cache.all::<dist::Std>()),
1604 compiler: Compiler { host: a, stage: 2 },
1608 compiler: Compiler { host: a, stage: 2 },
1613 assert_eq!(first(builder.cache.all::<dist::Src>()), &[dist::Src]);
1615 first(builder.cache.all::<compile::Std>()),
1618 compiler: Compiler { host: a, stage: 0 },
1622 compiler: Compiler { host: a, stage: 1 },
1626 compiler: Compiler { host: a, stage: 2 },
1630 compiler: Compiler { host: a, stage: 1 },
1634 compiler: Compiler { host: a, stage: 2 },
1640 first(builder.cache.all::<compile::Test>()),
1643 compiler: Compiler { host: a, stage: 0 },
1647 compiler: Compiler { host: a, stage: 1 },
1651 compiler: Compiler { host: a, stage: 2 },
1655 compiler: Compiler { host: a, stage: 1 },
1659 compiler: Compiler { host: a, stage: 2 },
1665 first(builder.cache.all::<compile::Assemble>()),
1668 target_compiler: Compiler { host: a, stage: 0 },
1671 target_compiler: Compiler { host: a, stage: 1 },
1674 target_compiler: Compiler { host: a, stage: 2 },
1677 target_compiler: Compiler { host: b, stage: 2 },
1684 fn build_default() {
1685 let build = Build::new(configure(&["B"], &["C"]));
1686 let mut builder = Builder::new(&build);
1687 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Build), &[]);
1689 let a = INTERNER.intern_str("A");
1690 let b = INTERNER.intern_str("B");
1691 let c = INTERNER.intern_str("C");
1693 assert!(!builder.cache.all::<compile::Std>().is_empty());
1694 assert!(!builder.cache.all::<compile::Assemble>().is_empty());
1696 first(builder.cache.all::<compile::Rustc>()),
1699 compiler: Compiler { host: a, stage: 0 },
1703 compiler: Compiler { host: a, stage: 1 },
1707 compiler: Compiler { host: a, stage: 2 },
1711 compiler: Compiler { host: b, stage: 2 },
1715 compiler: Compiler { host: a, stage: 0 },
1719 compiler: Compiler { host: a, stage: 1 },
1723 compiler: Compiler { host: a, stage: 2 },
1727 compiler: Compiler { host: b, stage: 2 },
1734 first(builder.cache.all::<compile::Test>()),
1737 compiler: Compiler { host: a, stage: 0 },
1741 compiler: Compiler { host: a, stage: 1 },
1745 compiler: Compiler { host: a, stage: 2 },
1749 compiler: Compiler { host: b, stage: 2 },
1753 compiler: Compiler { host: a, stage: 0 },
1757 compiler: Compiler { host: a, stage: 1 },
1761 compiler: Compiler { host: a, stage: 2 },
1765 compiler: Compiler { host: b, stage: 2 },
1769 compiler: Compiler { host: a, stage: 2 },
1773 compiler: Compiler { host: b, stage: 2 },
1781 fn build_with_target_flag() {
1782 let mut config = configure(&["B"], &["C"]);
1783 config.run_host_only = false;
1784 let build = Build::new(config);
1785 let mut builder = Builder::new(&build);
1786 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Build), &[]);
1788 let a = INTERNER.intern_str("A");
1789 let b = INTERNER.intern_str("B");
1790 let c = INTERNER.intern_str("C");
1792 assert!(!builder.cache.all::<compile::Std>().is_empty());
1794 first(builder.cache.all::<compile::Assemble>()),
1797 target_compiler: Compiler { host: a, stage: 0 },
1800 target_compiler: Compiler { host: a, stage: 1 },
1803 target_compiler: Compiler { host: b, stage: 1 },
1806 target_compiler: Compiler { host: a, stage: 2 },
1809 target_compiler: Compiler { host: b, stage: 2 },
1814 first(builder.cache.all::<compile::Rustc>()),
1817 compiler: Compiler { host: a, stage: 0 },
1821 compiler: Compiler { host: a, stage: 1 },
1825 compiler: Compiler { host: a, stage: 0 },
1829 compiler: Compiler { host: a, stage: 1 },
1836 first(builder.cache.all::<compile::Test>()),
1839 compiler: Compiler { host: a, stage: 0 },
1843 compiler: Compiler { host: a, stage: 1 },
1847 compiler: Compiler { host: a, stage: 2 },
1851 compiler: Compiler { host: b, stage: 2 },
1855 compiler: Compiler { host: a, stage: 0 },
1859 compiler: Compiler { host: a, stage: 1 },
1863 compiler: Compiler { host: a, stage: 2 },
1867 compiler: Compiler { host: b, stage: 2 },
1871 compiler: Compiler { host: a, stage: 2 },
1875 compiler: Compiler { host: b, stage: 2 },
1883 fn test_with_no_doc_stage0() {
1884 let mut config = configure(&[], &[]);
1885 config.stage = Some(0);
1886 config.cmd = Subcommand::Test {
1887 paths: vec!["src/libstd".into()],
1891 doc_tests: DocTests::No,
1894 rustfix_coverage: false,
1897 let build = Build::new(config);
1898 let mut builder = Builder::new(&build);
1900 let host = INTERNER.intern_str("A");
1902 builder.run_step_descriptions(
1903 &[StepDescription::from::<test::Crate>()],
1904 &["src/libstd".into()],
1907 // Ensure we don't build any compiler artifacts.
1908 assert!(!builder.cache.contains::<compile::Rustc>());
1910 first(builder.cache.all::<test::Crate>()),
1912 compiler: Compiler { host, stage: 0 },
1915 test_kind: test::TestKind::Test,
1916 krate: INTERNER.intern_str("std"),
1923 let mut config = configure(&[], &[]);
1924 config.exclude = vec![
1925 "src/test/run-pass".into(),
1926 "src/tools/tidy".into(),
1928 config.cmd = Subcommand::Test {
1930 test_args: Vec::new(),
1931 rustc_args: Vec::new(),
1933 doc_tests: DocTests::No,
1936 rustfix_coverage: false,
1939 let build = Build::new(config);
1940 let builder = Builder::new(&build);
1941 builder.run_step_descriptions(&Builder::get_step_descriptions(Kind::Test), &[]);
1943 // Ensure we have really excluded run-pass & tidy
1944 assert!(!builder.cache.contains::<test::RunPass>());
1945 assert!(!builder.cache.contains::<test::Tidy>());
1947 // Ensure other tests are not affected.
1948 assert!(builder.cache.contains::<test::RunPassFullDeps>());
1949 assert!(builder.cache.contains::<test::RustdocUi>());