1 use std::collections::HashSet;
4 use std::path::PathBuf;
5 use std::process::{exit, Command};
9 use crate::builder::{Builder, Cargo as CargoCommand, RunConfig, ShouldRun, Step};
10 use crate::cache::Interned;
12 use crate::channel::GitInfo;
14 use crate::toolstate::ToolState;
15 use crate::util::{add_dylib_path, exe, CiEnv};
19 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
25 #[derive(Debug, Clone, Hash, PartialEq, Eq)]
28 target: Interned<String>,
32 is_optional_tool: bool,
33 source_type: SourceType,
34 extra_features: Vec<String>,
37 impl Step for ToolBuild {
38 type Output = Option<PathBuf>;
40 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
44 /// Builds a tool in `src/tools`
46 /// This will build the specified tool with the specified `host` compiler in
47 /// `stage` into the normal cargo output directory.
48 fn run(self, builder: &Builder<'_>) -> Option<PathBuf> {
49 let compiler = self.compiler;
50 let target = self.target;
53 let is_optional_tool = self.is_optional_tool;
56 Mode::ToolRustc => builder.ensure(compile::Rustc { compiler, target }),
57 Mode::ToolStd => builder.ensure(compile::Std { compiler, target }),
58 Mode::ToolBootstrap => {} // uses downloaded stage0 compiler libs
59 _ => panic!("unexpected Mode for tool build"),
62 let cargo = prepare_tool_cargo(
73 builder.info(&format!("Building stage{} tool {} ({})", compiler.stage, tool, target));
74 let mut duplicates = Vec::new();
75 let is_expected = compile::stream_cargo(builder, cargo, vec![], &mut |msg| {
76 // Only care about big things like the RLS/Cargo for now
78 "rls" | "cargo" | "clippy-driver" | "miri" | "rustfmt" => {}
82 let (id, features, filenames) = match msg {
83 compile::CargoMessage::CompilerArtifact {
88 } => (package_id, features, filenames),
91 let features = features.iter().map(|s| s.to_string()).collect::<Vec<_>>();
93 for path in filenames {
94 let val = (tool, PathBuf::from(&*path), features.clone());
95 // we're only interested in deduplicating rlibs for now
96 if val.1.extension().and_then(|s| s.to_str()) != Some("rlib") {
100 // Don't worry about compiles that turn out to be host
101 // dependencies or build scripts. To skip these we look for
102 // anything that goes in `.../release/deps` but *doesn't* go in
103 // `$target/release/deps`. This ensure that outputs in
104 // `$target/release` are still considered candidates for
106 if let Some(parent) = val.1.parent() {
107 if parent.ends_with("release/deps") {
108 let maybe_target = parent
110 .and_then(|p| p.parent())
111 .and_then(|p| p.file_name())
112 .and_then(|p| p.to_str())
114 if maybe_target != &*target {
120 // Record that we've built an artifact for `id`, and if one was
121 // already listed then we need to see if we reused the same
122 // artifact or produced a duplicate.
123 let mut artifacts = builder.tool_artifacts.borrow_mut();
124 let prev_artifacts = artifacts.entry(target).or_default();
125 let prev = match prev_artifacts.get(&*id) {
128 prev_artifacts.insert(id.to_string(), val);
133 return; // same path, same artifact
136 // If the paths are different and one of them *isn't* inside of
137 // `release/deps`, then it means it's probably in
138 // `$target/release`, or it's some final artifact like
139 // `libcargo.rlib`. In these situations Cargo probably just
140 // copied it up from `$target/release/deps/libcargo-xxxx.rlib`,
141 // so if the features are equal we can just skip it.
142 let prev_no_hash = prev.1.parent().unwrap().ends_with("release/deps");
143 let val_no_hash = val.1.parent().unwrap().ends_with("release/deps");
144 if prev.2 == val.2 || !prev_no_hash || !val_no_hash {
148 // ... and otherwise this looks like we duplicated some sort of
149 // compilation, so record it to generate an error later.
150 duplicates.push((id.to_string(), val, prev.clone()));
154 if is_expected && !duplicates.is_empty() {
156 "duplicate artifacts found when compiling a tool, this \
157 typically means that something was recompiled because \
158 a transitive dependency has different features activated \
159 than in a previous build:\n"
162 "the following dependencies are duplicated although they \
163 have the same features enabled:"
165 for (id, cur, prev) in duplicates.drain_filter(|(_, cur, prev)| cur.2 == prev.2) {
168 println!(" `{}` ({:?})\n `{}` ({:?})", cur.0, cur.1, prev.0, prev.1);
170 println!("the following dependencies have different features:");
171 for (id, cur, prev) in duplicates {
173 let cur_features: HashSet<_> = cur.2.into_iter().collect();
174 let prev_features: HashSet<_> = prev.2.into_iter().collect();
176 " `{}` additionally enabled features {:?} at {:?}",
178 &cur_features - &prev_features,
182 " `{}` additionally enabled features {:?} at {:?}",
184 &prev_features - &cur_features,
190 "to fix this you will probably want to edit the local \
191 src/tools/rustc-workspace-hack/Cargo.toml crate, as \
192 that will update the dependency graph to ensure that \
193 these crates all share the same feature set"
195 panic!("tools should not compile multiple copies of the same crate");
198 builder.save_toolstate(
200 if is_expected { ToolState::TestFail } else { ToolState::BuildFail },
204 if !is_optional_tool {
211 builder.cargo_out(compiler, self.mode, target).join(exe(tool, &compiler.host));
212 let bin = builder.tools_dir(compiler).join(exe(tool, &compiler.host));
213 builder.copy(&cargo_out, &bin);
219 pub fn prepare_tool_cargo(
220 builder: &Builder<'_>,
223 target: Interned<String>,
224 command: &'static str,
226 source_type: SourceType,
227 extra_features: &[String],
229 let mut cargo = builder.cargo(compiler, mode, source_type, target, command);
230 let dir = builder.src.join(path);
231 cargo.arg("--manifest-path").arg(dir.join("Cargo.toml"));
233 let mut features = extra_features.to_vec();
234 if builder.build.config.cargo_native_static {
235 if path.ends_with("cargo")
236 || path.ends_with("rls")
237 || path.ends_with("clippy")
238 || path.ends_with("miri")
239 || path.ends_with("rustbook")
240 || path.ends_with("rustfmt")
242 cargo.env("LIBZ_SYS_STATIC", "1");
243 features.push("rustc-workspace-hack/all-static".to_string());
247 // if tools are using lzma we want to force the build script to build its
249 cargo.env("LZMA_API_STATIC", "1");
251 // CFG_RELEASE is needed by rustfmt (and possibly other tools) which
252 // import rustc-ap-rustc_attr which requires this to be set for the
253 // `#[cfg(version(...))]` attribute.
254 cargo.env("CFG_RELEASE", builder.rust_release());
255 cargo.env("CFG_RELEASE_CHANNEL", &builder.config.channel);
256 cargo.env("CFG_VERSION", builder.rust_version());
257 cargo.env("CFG_RELEASE_NUM", channel::CFG_RELEASE_NUM);
259 let info = GitInfo::new(builder.config.ignore_git, &dir);
260 if let Some(sha) = info.sha() {
261 cargo.env("CFG_COMMIT_HASH", sha);
263 if let Some(sha_short) = info.sha_short() {
264 cargo.env("CFG_SHORT_COMMIT_HASH", sha_short);
266 if let Some(date) = info.commit_date() {
267 cargo.env("CFG_COMMIT_DATE", date);
269 if !features.is_empty() {
270 cargo.arg("--features").arg(&features.join(", "));
275 fn rustbook_features() -> Vec<String> {
276 let mut features = Vec::new();
278 // Due to CI budged and risk of spurious failures we want to limit jobs running this check.
279 // At same time local builds should run it regardless of the platform.
280 // `CiEnv::None` means it's local build and `CHECK_LINKS` is defined in x86_64-gnu-tools to
281 // explicitly enable it on single job
282 if CiEnv::current() == CiEnv::None || env::var("CHECK_LINKS").is_ok() {
283 features.push("linkcheck".to_string());
289 macro_rules! bootstrap_tool {
291 $name:ident, $path:expr, $tool_name:expr
292 $(,is_external_tool = $external:expr)*
293 $(,is_unstable_tool = $unstable:expr)*
294 $(,features = $features:expr)*
297 #[derive(Copy, PartialEq, Eq, Clone)]
304 impl<'a> Builder<'a> {
305 pub fn tool_exe(&self, tool: Tool) -> PathBuf {
309 compiler: self.compiler(0, self.config.build),
310 target: self.config.build,
318 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
320 pub compiler: Compiler,
321 pub target: Interned<String>,
324 impl Step for $name {
325 type Output = PathBuf;
327 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
331 fn make_run(run: RunConfig<'_>) {
332 run.builder.ensure($name {
334 compiler: run.builder.compiler(0, run.builder.config.build),
339 fn run(self, builder: &Builder<'_>) -> PathBuf {
340 builder.ensure(ToolBuild {
341 compiler: self.compiler,
344 mode: if false $(|| $unstable)* {
345 // use in-tree libraries for unstable features
351 is_optional_tool: false,
352 source_type: if false $(|| $external)* {
353 SourceType::Submodule
358 // FIXME(#60643): avoid this lint by using `_`
359 let mut _tmp = Vec::new();
360 $(_tmp.extend($features);)*
363 }).expect("expected to build -- essential tool")
371 Rustbook, "src/tools/rustbook", "rustbook", features = rustbook_features();
372 UnstableBookGen, "src/tools/unstable-book-gen", "unstable-book-gen";
373 Tidy, "src/tools/tidy", "tidy";
374 Linkchecker, "src/tools/linkchecker", "linkchecker";
375 CargoTest, "src/tools/cargotest", "cargotest";
376 Compiletest, "src/tools/compiletest", "compiletest", is_unstable_tool = true;
377 BuildManifest, "src/tools/build-manifest", "build-manifest";
378 RemoteTestClient, "src/tools/remote-test-client", "remote-test-client";
379 RustInstaller, "src/tools/rust-installer", "fabricate", is_external_tool = true;
380 RustdocTheme, "src/tools/rustdoc-themes", "rustdoc-themes";
381 ExpandYamlAnchors, "src/tools/expand-yaml-anchors", "expand-yaml-anchors";
384 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
385 pub struct ErrorIndex {
386 pub compiler: Compiler,
390 pub fn command(builder: &Builder<'_>, compiler: Compiler) -> Command {
391 let mut cmd = Command::new(builder.ensure(ErrorIndex { compiler }));
393 vec![PathBuf::from(&builder.sysroot_libdir(compiler, compiler.host))],
400 impl Step for ErrorIndex {
401 type Output = PathBuf;
403 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
404 run.path("src/tools/error_index_generator")
407 fn make_run(run: RunConfig<'_>) {
408 // Compile the error-index in the same stage as rustdoc to avoid
409 // recompiling rustdoc twice if we can.
410 let stage = if run.builder.top_stage >= 2 { run.builder.top_stage } else { 0 };
412 .ensure(ErrorIndex { compiler: run.builder.compiler(stage, run.builder.config.build) });
415 fn run(self, builder: &Builder<'_>) -> PathBuf {
418 compiler: self.compiler,
419 target: self.compiler.host,
420 tool: "error_index_generator",
421 mode: Mode::ToolRustc,
422 path: "src/tools/error_index_generator",
423 is_optional_tool: false,
424 source_type: SourceType::InTree,
425 extra_features: Vec::new(),
427 .expect("expected to build -- essential tool")
431 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
432 pub struct RemoteTestServer {
433 pub compiler: Compiler,
434 pub target: Interned<String>,
437 impl Step for RemoteTestServer {
438 type Output = PathBuf;
440 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
441 run.path("src/tools/remote-test-server")
444 fn make_run(run: RunConfig<'_>) {
445 run.builder.ensure(RemoteTestServer {
446 compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build),
451 fn run(self, builder: &Builder<'_>) -> PathBuf {
454 compiler: self.compiler,
456 tool: "remote-test-server",
458 path: "src/tools/remote-test-server",
459 is_optional_tool: false,
460 source_type: SourceType::InTree,
461 extra_features: Vec::new(),
463 .expect("expected to build -- essential tool")
467 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
469 /// This should only ever be 0 or 2.
470 /// We sometimes want to reference the "bootstrap" rustdoc, which is why this option is here.
471 pub compiler: Compiler,
474 impl Step for Rustdoc {
475 type Output = PathBuf;
476 const DEFAULT: bool = true;
477 const ONLY_HOSTS: bool = true;
479 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
480 run.path("src/tools/rustdoc").path("src/librustdoc")
483 fn make_run(run: RunConfig<'_>) {
485 .ensure(Rustdoc { compiler: run.builder.compiler(run.builder.top_stage, run.host) });
488 fn run(self, builder: &Builder<'_>) -> PathBuf {
489 let target_compiler = self.compiler;
490 if target_compiler.stage == 0 {
491 if !target_compiler.is_snapshot(builder) {
492 panic!("rustdoc in stage 0 must be snapshot rustdoc");
494 return builder.initial_rustc.with_file_name(exe("rustdoc", &target_compiler.host));
496 let target = target_compiler.host;
497 // Similar to `compile::Assemble`, build with the previous stage's compiler. Otherwise
498 // we'd have stageN/bin/rustc and stageN/bin/rustdoc be effectively different stage
499 // compilers, which isn't what we want. Rustdoc should be linked in the same way as the
500 // rustc compiler it's paired with, so it must be built with the previous stage compiler.
501 let build_compiler = builder.compiler(target_compiler.stage - 1, builder.config.build);
503 // The presence of `target_compiler` ensures that the necessary libraries (codegen backends,
504 // compiler libraries, ...) are built. Rustdoc does not require the presence of any
505 // libraries within sysroot_libdir (i.e., rustlib), though doctests may want it (since
506 // they'll be linked to those libraries). As such, don't explicitly `ensure` any additional
507 // libraries here. The intuition here is that If we've built a compiler, we should be able
510 let cargo = prepare_tool_cargo(
521 builder.info(&format!(
522 "Building rustdoc for stage{} ({})",
523 target_compiler.stage, target_compiler.host
525 builder.run(&mut cargo.into());
527 // Cargo adds a number of paths to the dylib search path on windows, which results in
528 // the wrong rustdoc being executed. To avoid the conflicting rustdocs, we name the "tool"
529 // rustdoc a different name.
530 let tool_rustdoc = builder
531 .cargo_out(build_compiler, Mode::ToolRustc, target)
532 .join(exe("rustdoc_tool_binary", &target_compiler.host));
534 // don't create a stage0-sysroot/bin directory.
535 if target_compiler.stage > 0 {
536 let sysroot = builder.sysroot(target_compiler);
537 let bindir = sysroot.join("bin");
538 t!(fs::create_dir_all(&bindir));
539 let bin_rustdoc = bindir.join(exe("rustdoc", &*target_compiler.host));
540 let _ = fs::remove_file(&bin_rustdoc);
541 builder.copy(&tool_rustdoc, &bin_rustdoc);
549 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
551 pub compiler: Compiler,
552 pub target: Interned<String>,
555 impl Step for Cargo {
556 type Output = PathBuf;
557 const DEFAULT: bool = true;
558 const ONLY_HOSTS: bool = true;
560 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
561 let builder = run.builder;
562 run.path("src/tools/cargo").default_condition(builder.config.extended)
565 fn make_run(run: RunConfig<'_>) {
566 run.builder.ensure(Cargo {
567 compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build),
572 fn run(self, builder: &Builder<'_>) -> PathBuf {
575 compiler: self.compiler,
578 mode: Mode::ToolRustc,
579 path: "src/tools/cargo",
580 is_optional_tool: false,
581 source_type: SourceType::Submodule,
582 extra_features: Vec::new(),
584 .expect("expected to build -- essential tool")
588 macro_rules! tool_extended {
589 (($sel:ident, $builder:ident),
594 stable = $stable:expr,
595 $(in_tree = $in_tree:expr,)*
596 $extra_deps:block;)+) => {
598 #[derive(Debug, Clone, Hash, PartialEq, Eq)]
600 pub compiler: Compiler,
601 pub target: Interned<String>,
602 pub extra_features: Vec<String>,
605 impl Step for $name {
606 type Output = Option<PathBuf>;
607 const DEFAULT: bool = true; // Overwritten below
608 const ONLY_HOSTS: bool = true;
610 fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
611 let builder = run.builder;
612 run.path($path).default_condition(
613 builder.config.extended
614 && builder.config.tools.as_ref().map_or(
615 // By default, on nightly/dev enable all tools, else only
616 // build stable tools.
617 $stable || builder.build.unstable_features(),
618 // If `tools` is set, search list for this tool.
620 tools.iter().any(|tool| match tool.as_ref() {
621 "clippy" => $tool_name == "clippy-driver",
622 x => $tool_name == x,
628 fn make_run(run: RunConfig<'_>) {
629 run.builder.ensure($name {
630 compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build),
632 extra_features: Vec::new(),
637 fn run(mut $sel, $builder: &Builder<'_>) -> Option<PathBuf> {
639 $builder.ensure(ToolBuild {
640 compiler: $sel.compiler,
643 mode: Mode::ToolRustc,
645 extra_features: $sel.extra_features,
646 is_optional_tool: true,
647 source_type: if false $(|| $in_tree)* {
650 SourceType::Submodule
659 // Note: tools need to be also added to `Builder::get_step_descriptions` in `build.rs`
660 // to make `./x.py build <tool>` work.
661 tool_extended!((self, builder),
662 Cargofmt, rustfmt, "src/tools/rustfmt", "cargo-fmt", stable=true, {};
663 CargoClippy, clippy, "src/tools/clippy", "cargo-clippy", stable=true, in_tree=true, {};
664 Clippy, clippy, "src/tools/clippy", "clippy-driver", stable=true, in_tree=true, {};
665 Miri, miri, "src/tools/miri", "miri", stable=false, {};
666 CargoMiri, miri, "src/tools/miri/cargo-miri", "cargo-miri", stable=false, {};
667 Rls, rls, "src/tools/rls", "rls", stable=true, {
668 builder.ensure(Clippy {
669 compiler: self.compiler,
671 extra_features: Vec::new(),
673 self.extra_features.push("clippy".to_owned());
675 Rustfmt, rustfmt, "src/tools/rustfmt", "rustfmt", stable=true, {};
678 impl<'a> Builder<'a> {
679 /// Gets a `Command` which is ready to run `tool` in `stage` built for
681 pub fn tool_cmd(&self, tool: Tool) -> Command {
682 let mut cmd = Command::new(self.tool_exe(tool));
683 let compiler = self.compiler(0, self.config.build);
684 let host = &compiler.host;
685 // Prepares the `cmd` provided to be able to run the `compiler` provided.
687 // Notably this munges the dynamic library lookup path to point to the
688 // right location to run `compiler`.
689 let mut lib_paths: Vec<PathBuf> = vec![
690 self.build.rustc_snapshot_libdir(),
691 self.cargo_out(compiler, Mode::ToolBootstrap, *host).join("deps"),
694 // On MSVC a tool may invoke a C compiler (e.g., compiletest in run-make
695 // mode) and that C compiler may need some extra PATH modification. Do
697 if compiler.host.contains("msvc") {
698 let curpaths = env::var_os("PATH").unwrap_or_default();
699 let curpaths = env::split_paths(&curpaths).collect::<Vec<_>>();
700 for &(ref k, ref v) in self.cc[&compiler.host].env() {
704 for path in env::split_paths(v) {
705 if !curpaths.contains(&path) {
706 lib_paths.push(path);
712 add_dylib_path(lib_paths, &mut cmd);