1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 //! Major workhorse of rustbuild, definition and dependencies between stages of
14 //! The primary purpose of this module is to define the various `Step`s of
15 //! execution of the build. Each `Step` has a corresponding `Source` indicating
16 //! what it's actually doing along with a number of dependencies which must be
19 //! This module will take the CLI as input and calculate the steps required for
20 //! the build requested, ensuring that all intermediate pieces are in place.
21 //! Essentially this module is a `make`-replacement, but not as good.
23 use std::collections::HashSet;
25 use {Build, Compiler};
27 #[derive(Hash, Eq, PartialEq, Clone, Debug)]
33 /// Macro used to iterate over all targets that are recognized by the build
36 /// Whenever a new step is added it will involve adding an entry here, updating
37 /// the dependencies section below, and then adding an implementation of the
38 /// step in `build/mod.rs`.
40 /// This macro takes another macro as an argument and then calls that macro with
41 /// all steps that the build system knows about.
42 macro_rules! targets {
45 // Step representing building the stageN compiler. This is just the
46 // compiler executable itself, not any of the support libraries
47 (rustc, Rustc { stage: u32 }),
49 // Steps for the two main cargo builds. These are parameterized over
50 // the compiler which is producing the artifact.
51 (libstd, Libstd { compiler: Compiler<'a> }),
52 (libtest, Libtest { compiler: Compiler<'a> }),
53 (librustc, Librustc { compiler: Compiler<'a> }),
55 // Links the target produced by the compiler provided into the
56 // host's directory also provided.
57 (libstd_link, LibstdLink {
58 compiler: Compiler<'a>,
61 (libtest_link, LibtestLink {
62 compiler: Compiler<'a>,
65 (librustc_link, LibrustcLink {
66 compiler: Compiler<'a>,
70 // Various tools that we can build as part of the build.
71 (tool_linkchecker, ToolLinkchecker { stage: u32 }),
72 (tool_rustbook, ToolRustbook { stage: u32 }),
73 (tool_error_index, ToolErrorIndex { stage: u32 }),
74 (tool_cargotest, ToolCargoTest { stage: u32 }),
75 (tool_tidy, ToolTidy { stage: u32 }),
76 (tool_compiletest, ToolCompiletest { stage: u32 }),
78 // Steps for long-running native builds. Ideally these wouldn't
79 // actually exist and would be part of build scripts, but for now
82 // There aren't really any parameters to this, but empty structs
83 // with braces are unstable so we just pick something that works.
84 (llvm, Llvm { _dummy: () }),
85 (compiler_rt, CompilerRt { _dummy: () }),
86 (test_helpers, TestHelpers { _dummy: () }),
87 (debugger_scripts, DebuggerScripts { stage: u32 }),
89 // Steps for various pieces of documentation that we can generate,
90 // the 'doc' step is just a pseudo target to depend on a bunch of
92 (doc, Doc { stage: u32 }),
93 (doc_book, DocBook { stage: u32 }),
94 (doc_nomicon, DocNomicon { stage: u32 }),
95 (doc_style, DocStyle { stage: u32 }),
96 (doc_standalone, DocStandalone { stage: u32 }),
97 (doc_std, DocStd { stage: u32 }),
98 (doc_test, DocTest { stage: u32 }),
99 (doc_rustc, DocRustc { stage: u32 }),
100 (doc_error_index, DocErrorIndex { stage: u32 }),
102 // Steps for running tests. The 'check' target is just a pseudo
103 // target to depend on a bunch of others.
104 (check, Check { stage: u32, compiler: Compiler<'a> }),
105 (check_target, CheckTarget { stage: u32, compiler: Compiler<'a> }),
106 (check_linkcheck, CheckLinkcheck { stage: u32 }),
107 (check_cargotest, CheckCargoTest { stage: u32 }),
108 (check_tidy, CheckTidy { stage: u32 }),
109 (check_rpass, CheckRPass { compiler: Compiler<'a> }),
110 (check_rpass_full, CheckRPassFull { compiler: Compiler<'a> }),
111 (check_rpass_valgrind, CheckRPassValgrind { compiler: Compiler<'a> }),
112 (check_rfail, CheckRFail { compiler: Compiler<'a> }),
113 (check_rfail_full, CheckRFailFull { compiler: Compiler<'a> }),
114 (check_cfail, CheckCFail { compiler: Compiler<'a> }),
115 (check_cfail_full, CheckCFailFull { compiler: Compiler<'a> }),
116 (check_pfail, CheckPFail { compiler: Compiler<'a> }),
117 (check_pretty, CheckPretty { compiler: Compiler<'a> }),
118 (check_pretty_rpass, CheckPrettyRPass { compiler: Compiler<'a> }),
119 (check_pretty_rpass_full, CheckPrettyRPassFull { compiler: Compiler<'a> }),
120 (check_pretty_rfail, CheckPrettyRFail { compiler: Compiler<'a> }),
121 (check_pretty_rfail_full, CheckPrettyRFailFull { compiler: Compiler<'a> }),
122 (check_pretty_rpass_valgrind, CheckPrettyRPassValgrind { compiler: Compiler<'a> }),
123 (check_codegen, CheckCodegen { compiler: Compiler<'a> }),
124 (check_codegen_units, CheckCodegenUnits { compiler: Compiler<'a> }),
125 (check_incremental, CheckIncremental { compiler: Compiler<'a> }),
126 (check_ui, CheckUi { compiler: Compiler<'a> }),
127 (check_mir_opt, CheckMirOpt { compiler: Compiler<'a> }),
128 (check_debuginfo, CheckDebuginfo { compiler: Compiler<'a> }),
129 (check_rustdoc, CheckRustdoc { compiler: Compiler<'a> }),
130 (check_docs, CheckDocs { compiler: Compiler<'a> }),
131 (check_error_index, CheckErrorIndex { compiler: Compiler<'a> }),
132 (check_rmake, CheckRMake { compiler: Compiler<'a> }),
133 (check_crate_std, CheckCrateStd { compiler: Compiler<'a> }),
134 (check_crate_test, CheckCrateTest { compiler: Compiler<'a> }),
135 (check_crate_rustc, CheckCrateRustc { compiler: Compiler<'a> }),
137 // Distribution targets, creating tarballs
138 (dist, Dist { stage: u32 }),
139 (dist_docs, DistDocs { stage: u32 }),
140 (dist_mingw, DistMingw { _dummy: () }),
141 (dist_rustc, DistRustc { stage: u32 }),
142 (dist_std, DistStd { compiler: Compiler<'a> }),
145 (android_copy_libs, AndroidCopyLibs { compiler: Compiler<'a> }),
150 // Define the `Source` enum by iterating over all the steps and peeling out just
151 // the types that we want to define.
153 macro_rules! item { ($a:item) => ($a) }
155 macro_rules! define_source {
156 ($(($short:ident, $name:ident { $($args:tt)* }),)*) => {
158 #[derive(Hash, Eq, PartialEq, Clone, Debug)]
159 pub enum Source<'a> {
160 $($name { $($args)* }),*
166 targets!(define_source);
168 /// Calculate a list of all steps described by `build`.
170 /// This will inspect the flags passed in on the command line and use that to
171 /// build up a list of steps to execute. These steps will then be transformed
172 /// into a topologically sorted list which when executed left-to-right will
173 /// correctly sequence the entire build.
174 pub fn all(build: &Build) -> Vec<Step> {
175 let mut ret = Vec::new();
176 let mut all = HashSet::new();
177 for target in top_level(build) {
178 fill(build, &target, &mut ret, &mut all);
182 fn fill<'a>(build: &'a Build,
184 ret: &mut Vec<Step<'a>>,
185 set: &mut HashSet<Step<'a>>) {
186 if set.insert(target.clone()) {
187 for dep in target.deps(build) {
188 fill(build, &dep, ret, set);
190 ret.push(target.clone());
195 /// Determines what top-level targets are requested as part of this build,
196 /// returning them as a list.
197 fn top_level(build: &Build) -> Vec<Step> {
198 let mut targets = Vec::new();
199 let stage = build.flags.stage.unwrap_or(2);
202 src: Source::Llvm { _dummy: () },
203 target: build.flags.host.iter().next()
204 .unwrap_or(&build.config.build),
207 src: Source::Llvm { _dummy: () },
208 target: build.flags.target.iter().next().map(|x| &x[..])
209 .unwrap_or(host.target)
212 // First, try to find steps on the command line.
213 add_steps(build, stage, &host, &target, &mut targets);
215 // If none are specified, then build everything.
216 if targets.len() == 0 {
218 src: Source::Llvm { _dummy: () },
219 target: &build.config.build,
221 if build.config.docs {
222 targets.push(t.doc(stage));
224 for host in build.config.host.iter() {
225 if !build.flags.host.contains(host) {
228 let host = t.target(host);
229 if host.target == build.config.build {
230 targets.push(host.librustc(host.compiler(stage)));
232 targets.push(host.librustc_link(t.compiler(stage), host.target));
234 for target in build.config.target.iter() {
235 if !build.flags.target.contains(target) {
239 if host.target == build.config.build {
240 targets.push(host.target(target)
241 .libtest(host.compiler(stage)));
243 targets.push(host.target(target)
244 .libtest_link(t.compiler(stage), host.target));
254 fn add_steps<'a>(build: &'a Build,
258 targets: &mut Vec<Step<'a>>) {
261 compiler: Compiler<'a>,
265 for step in build.flags.step.iter() {
267 // The macro below insists on hygienic access to all local variables, so
268 // we shove them all in a struct and subvert hygiene by accessing struct
272 compiler: host.target(&build.config.build).compiler(stage),
276 macro_rules! add_step {
277 ($(($short:ident, $name:ident { $($arg:ident: $t:ty),* }),)*) => ({$(
278 let name = stringify!($short).replace("_", "-");
279 if &step[..] == &name[..] {
280 targets.push(target.$short($(cx.$arg),*));
289 panic!("unknown step: {}", step);
293 macro_rules! constructors {
294 ($(($short:ident, $name:ident { $($arg:ident: $t:ty),* }),)*) => {$(
295 fn $short(&self, $($arg: $t),*) -> Step<'a> {
297 src: Source::$name { $($arg: $arg),* },
305 fn compiler(&self, stage: u32) -> Compiler<'a> {
306 Compiler::new(stage, self.target)
309 fn target(&self, target: &'a str) -> Step<'a> {
310 Step { target: target, src: self.src.clone() }
313 // Define ergonomic constructors for each step defined above so they can be
314 // easily constructed.
315 targets!(constructors);
317 /// Mapping of all dependencies for rustbuild.
319 /// This function receives a step, the build that we're building for, and
320 /// then returns a list of all the dependencies of that step.
321 pub fn deps(&self, build: &'a Build) -> Vec<Step<'a>> {
323 Source::Rustc { stage: 0 } => {
326 Source::Rustc { stage } => {
327 let compiler = Compiler::new(stage - 1, &build.config.build);
328 vec![self.librustc(compiler)]
330 Source::Librustc { compiler } => {
331 vec![self.libtest(compiler), self.llvm(())]
333 Source::Libtest { compiler } => {
334 vec![self.libstd(compiler)]
336 Source::Libstd { compiler } => {
337 vec![self.compiler_rt(()),
338 self.rustc(compiler.stage).target(compiler.host)]
340 Source::LibrustcLink { compiler, host } => {
341 vec![self.librustc(compiler),
342 self.libtest_link(compiler, host)]
344 Source::LibtestLink { compiler, host } => {
345 vec![self.libtest(compiler), self.libstd_link(compiler, host)]
347 Source::LibstdLink { compiler, host } => {
348 vec![self.libstd(compiler),
349 self.target(host).rustc(compiler.stage)]
351 Source::CompilerRt { _dummy } => Vec::new(),
352 Source::Llvm { _dummy } => Vec::new(),
353 Source::TestHelpers { _dummy } => Vec::new(),
354 Source::DebuggerScripts { stage: _ } => Vec::new(),
356 // Note that all doc targets depend on artifacts from the build
357 // architecture, not the target (which is where we're generating
359 Source::DocStd { stage } => {
360 let compiler = self.target(&build.config.build).compiler(stage);
361 vec![self.libstd(compiler)]
363 Source::DocTest { stage } => {
364 let compiler = self.target(&build.config.build).compiler(stage);
365 vec![self.libtest(compiler)]
367 Source::DocBook { stage } |
368 Source::DocNomicon { stage } |
369 Source::DocStyle { stage } => {
370 vec![self.target(&build.config.build).tool_rustbook(stage)]
372 Source::DocErrorIndex { stage } => {
373 vec![self.target(&build.config.build).tool_error_index(stage)]
375 Source::DocStandalone { stage } => {
376 vec![self.target(&build.config.build).rustc(stage)]
378 Source::DocRustc { stage } => {
379 vec![self.doc_test(stage)]
381 Source::Doc { stage } => {
383 self.doc_book(stage), self.doc_nomicon(stage),
384 self.doc_style(stage), self.doc_standalone(stage),
386 self.doc_error_index(stage),
389 if build.config.compiler_docs {
390 deps.push(self.doc_rustc(stage));
395 Source::Check { stage, compiler } => {
396 // Check is just a pseudo step which means check all targets,
397 // so just depend on checking all targets.
398 build.config.target.iter().map(|t| {
399 self.target(t).check_target(stage, compiler)
402 Source::CheckTarget { stage, compiler } => {
403 // CheckTarget here means run all possible test suites for this
404 // target. Most of the time, however, we can't actually run
405 // anything if we're not the build triple as we could be cross
408 // As a result, the base set of targets here is quite stripped
409 // down from the standard set of targets. These suites have
410 // their own internal logic to run in cross-compiled situations
411 // if they'll run at all. For example compiletest knows that
412 // when testing Android targets we ship artifacts to the
415 // When in doubt the rule of thumb for adding to this list is
416 // "should this test suite run on the android bot?"
418 self.check_rpass(compiler),
419 self.check_rfail(compiler),
420 self.check_crate_std(compiler),
421 self.check_crate_test(compiler),
422 self.check_debuginfo(compiler),
426 // If we're testing the build triple, then we know we can
427 // actually run binaries and such, so we run all possible tests
428 // that we know about.
429 if self.target == build.config.build {
432 self.check_docs(compiler),
433 self.check_error_index(compiler),
434 self.check_rustdoc(compiler),
437 self.check_cfail(compiler),
438 self.check_pfail(compiler),
439 self.check_ui(compiler),
442 self.check_incremental(compiler),
443 self.check_codegen(compiler),
444 self.check_codegen_units(compiler),
446 // misc compiletest-test suites
447 self.check_rpass_full(compiler),
448 self.check_rfail_full(compiler),
449 self.check_cfail_full(compiler),
450 self.check_pretty_rpass_full(compiler),
451 self.check_pretty_rfail_full(compiler),
452 self.check_rpass_valgrind(compiler),
453 self.check_rmake(compiler),
454 self.check_mir_opt(compiler),
457 self.check_crate_rustc(compiler),
460 self.check_pretty(compiler),
461 self.check_pretty_rpass(compiler),
462 self.check_pretty_rfail(compiler),
463 self.check_pretty_rpass_valgrind(compiler),
466 self.check_linkcheck(stage),
467 self.check_tidy(stage),
472 Source::CheckLinkcheck { stage } => {
473 vec![self.tool_linkchecker(stage), self.doc(stage)]
475 Source::CheckCargoTest { stage } => {
476 vec![self.tool_cargotest(stage),
477 self.librustc(self.compiler(stage))]
479 Source::CheckTidy { stage } => {
480 vec![self.tool_tidy(stage)]
482 Source::CheckMirOpt { compiler} |
483 Source::CheckPrettyRPass { compiler } |
484 Source::CheckPrettyRFail { compiler } |
485 Source::CheckRFail { compiler } |
486 Source::CheckPFail { compiler } |
487 Source::CheckCodegen { compiler } |
488 Source::CheckCodegenUnits { compiler } |
489 Source::CheckIncremental { compiler } |
490 Source::CheckUi { compiler } |
491 Source::CheckRustdoc { compiler } |
492 Source::CheckPretty { compiler } |
493 Source::CheckCFail { compiler } |
494 Source::CheckRPassValgrind { compiler } |
495 Source::CheckRPass { compiler } => {
497 self.libtest(compiler),
498 self.target(compiler.host).tool_compiletest(compiler.stage),
499 self.test_helpers(()),
501 if self.target.contains("android") {
502 base.push(self.android_copy_libs(compiler));
506 Source::CheckDebuginfo { compiler } => {
508 self.libtest(compiler),
509 self.target(compiler.host).tool_compiletest(compiler.stage),
510 self.test_helpers(()),
511 self.debugger_scripts(compiler.stage),
514 Source::CheckRPassFull { compiler } |
515 Source::CheckRFailFull { compiler } |
516 Source::CheckCFailFull { compiler } |
517 Source::CheckPrettyRPassFull { compiler } |
518 Source::CheckPrettyRFailFull { compiler } |
519 Source::CheckPrettyRPassValgrind { compiler } |
520 Source::CheckRMake { compiler } => {
521 vec![self.librustc(compiler),
522 self.target(compiler.host).tool_compiletest(compiler.stage)]
524 Source::CheckDocs { compiler } => {
525 vec![self.libstd(compiler)]
527 Source::CheckErrorIndex { compiler } => {
528 vec![self.libstd(compiler),
529 self.target(compiler.host).tool_error_index(compiler.stage)]
531 Source::CheckCrateStd { compiler } => {
532 vec![self.libtest(compiler)]
534 Source::CheckCrateTest { compiler } => {
535 vec![self.libtest(compiler)]
537 Source::CheckCrateRustc { compiler } => {
538 vec![self.libtest(compiler)]
541 Source::ToolLinkchecker { stage } |
542 Source::ToolTidy { stage } => {
543 vec![self.libstd(self.compiler(stage))]
545 Source::ToolErrorIndex { stage } |
546 Source::ToolRustbook { stage } => {
547 vec![self.librustc(self.compiler(stage))]
549 Source::ToolCargoTest { stage } => {
550 vec![self.libstd(self.compiler(stage))]
552 Source::ToolCompiletest { stage } => {
553 vec![self.libtest(self.compiler(stage))]
556 Source::DistDocs { stage } => vec![self.doc(stage)],
557 Source::DistMingw { _dummy: _ } => Vec::new(),
558 Source::DistRustc { stage } => {
559 vec![self.rustc(stage)]
561 Source::DistStd { compiler } => {
562 // We want to package up as many target libraries as possible
563 // for the `rust-std` package, so if this is a host target we
564 // depend on librustc and otherwise we just depend on libtest.
565 if build.config.host.iter().any(|t| t == self.target) {
566 vec![self.librustc(compiler)]
568 vec![self.libtest(compiler)]
572 Source::Dist { stage } => {
573 let mut base = Vec::new();
575 for host in build.config.host.iter() {
576 let host = self.target(host);
577 base.push(host.dist_rustc(stage));
578 if host.target.contains("windows-gnu") {
579 base.push(host.dist_mingw(()));
582 let compiler = self.compiler(stage);
583 for target in build.config.target.iter() {
584 let target = self.target(target);
585 if build.config.docs {
586 base.push(target.dist_docs(stage));
588 base.push(target.dist_std(compiler));
594 Source::AndroidCopyLibs { compiler } => {
595 vec![self.libtest(compiler)]