src/bootstrap/tool.rs

   1 // Copyright 2017 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.
   4 //
   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.
  10
  11 use std::fs;
  12 use std::env;
  13 use std::path::PathBuf;
  14 use std::process::Command;
  15
  16 use Mode;
  17 use Compiler;
  18 use builder::{Step, RunConfig, ShouldRun, Builder};
  19 use util::{copy, exe, add_lib_path};
  20 use compile::{self, libtest_stamp, libstd_stamp, librustc_stamp};
  21 use native;
  22 use channel::GitInfo;
  23 use cache::Interned;
  24
  25 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
  26 pub struct CleanTools {
  27     pub compiler: Compiler,
  28     pub target: Interned<String>,
  29     pub mode: Mode,
  30 }
  31
  32 impl Step for CleanTools {
  33     type Output = ();
  34
  35     fn should_run(run: ShouldRun) -> ShouldRun {
  36         run.never()
  37     }
  38
  39     /// Build a tool in `src/tools`
  40     ///
  41     /// This will build the specified tool with the specified `host` compiler in
  42     /// `stage` into the normal cargo output directory.
  43     fn run(self, builder: &Builder) {
  44         let build = builder.build;
  45         let compiler = self.compiler;
  46         let target = self.target;
  47         let mode = self.mode;
  48
  49         let stamp = match mode {
  50             Mode::Libstd => libstd_stamp(build, compiler, target),
  51             Mode::Libtest => libtest_stamp(build, compiler, target),
  52             Mode::Librustc => librustc_stamp(build, compiler, target),
  53             _ => panic!(),
  54         };
  55         let out_dir = build.cargo_out(compiler, Mode::Tool, target);
  56         build.clear_if_dirty(&out_dir, &stamp);
  57     }
  58 }
  59
  60 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
  61 struct ToolBuild {
  62     compiler: Compiler,
  63     target: Interned<String>,
  64     tool: &'static str,
  65     mode: Mode,
  66 }
  67
  68 impl Step for ToolBuild {
  69     type Output = PathBuf;
  70
  71     fn should_run(run: ShouldRun) -> ShouldRun {
  72         run.never()
  73     }
  74
  75     /// Build a tool in `src/tools`
  76     ///
  77     /// This will build the specified tool with the specified `host` compiler in
  78     /// `stage` into the normal cargo output directory.
  79     fn run(self, builder: &Builder) -> PathBuf {
  80         let build = builder.build;
  81         let compiler = self.compiler;
  82         let target = self.target;
  83         let tool = self.tool;
  84
  85         match self.mode {
  86             Mode::Libstd => builder.ensure(compile::Std { compiler, target }),
  87             Mode::Libtest => builder.ensure(compile::Test { compiler, target }),
  88             Mode::Librustc => builder.ensure(compile::Rustc { compiler, target }),
  89             Mode::Tool => panic!("unexpected Mode::Tool for tool build")
  90         }
  91
  92         let _folder = build.fold_output(|| format!("stage{}-{}", compiler.stage, tool));
  93         println!("Building stage{} tool {} ({})", compiler.stage, tool, target);
  94
  95         let mut cargo = prepare_tool_cargo(builder, compiler, target, tool);
  96         build.run(&mut cargo);
  97         build.cargo_out(compiler, Mode::Tool, target).join(exe(tool, &compiler.host))
  98     }
  99 }
 100
 101 fn prepare_tool_cargo(
 102     builder: &Builder,
 103     compiler: Compiler,
 104     target: Interned<String>,
 105     tool: &'static str,
 106 ) -> Command {
 107     let build = builder.build;
 108     let mut cargo = builder.cargo(compiler, Mode::Tool, target, "build");
 109     let dir = build.src.join("src/tools").join(tool);
 110     cargo.arg("--manifest-path").arg(dir.join("Cargo.toml"));
 111
 112     // We don't want to build tools dynamically as they'll be running across
 113     // stages and such and it's just easier if they're not dynamically linked.
 114     cargo.env("RUSTC_NO_PREFER_DYNAMIC", "1");
 115
 116     if let Some(dir) = build.openssl_install_dir(target) {
 117         cargo.env("OPENSSL_STATIC", "1");
 118         cargo.env("OPENSSL_DIR", dir);
 119         cargo.env("LIBZ_SYS_STATIC", "1");
 120     }
 121
 122     cargo.env("CFG_RELEASE_CHANNEL", &build.config.channel);
 123
 124     let info = GitInfo::new(&build.config, &dir);
 125     if let Some(sha) = info.sha() {
 126         cargo.env("CFG_COMMIT_HASH", sha);
 127     }
 128     if let Some(sha_short) = info.sha_short() {
 129         cargo.env("CFG_SHORT_COMMIT_HASH", sha_short);
 130     }
 131     if let Some(date) = info.commit_date() {
 132         cargo.env("CFG_COMMIT_DATE", date);
 133     }
 134     cargo
 135 }
 136
 137 macro_rules! tool {
 138     ($($name:ident, $path:expr, $tool_name:expr, $mode:expr;)+) => {
 139         #[derive(Copy, Clone)]
 140         pub enum Tool {
 141             $(
 142                 $name,
 143             )+
 144         }
 145
 146         impl<'a> Builder<'a> {
 147             pub fn tool_exe(&self, tool: Tool) -> PathBuf {
 148                 match tool {
 149                     $(Tool::$name =>
 150                         self.ensure($name {
 151                             compiler: self.compiler(0, self.build.build),
 152                             target: self.build.build,
 153                         }),
 154                     )+
 155                 }
 156             }
 157         }
 158
 159         $(
 160             #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 161         pub struct $name {
 162             pub compiler: Compiler,
 163             pub target: Interned<String>,
 164         }
 165
 166         impl Step for $name {
 167             type Output = PathBuf;
 168
 169             fn should_run(run: ShouldRun) -> ShouldRun {
 170                 run.path($path)
 171             }
 172
 173             fn make_run(run: RunConfig) {
 174                 run.builder.ensure($name {
 175                     compiler: run.builder.compiler(run.builder.top_stage, run.builder.build.build),
 176                     target: run.target,
 177                 });
 178             }
 179
 180             fn run(self, builder: &Builder) -> PathBuf {
 181                 builder.ensure(ToolBuild {
 182                     compiler: self.compiler,
 183                     target: self.target,
 184                     tool: $tool_name,
 185                     mode: $mode,
 186                 })
 187             }
 188         }
 189         )+
 190     }
 191 }
 192
 193 tool!(
 194     Rustbook, "src/tools/rustbook", "rustbook", Mode::Librustc;
 195     ErrorIndex, "src/tools/error_index_generator", "error_index_generator", Mode::Librustc;
 196     UnstableBookGen, "src/tools/unstable-book-gen", "unstable-book-gen", Mode::Libstd;
 197     Tidy, "src/tools/tidy", "tidy", Mode::Libstd;
 198     Linkchecker, "src/tools/linkchecker", "linkchecker", Mode::Libstd;
 199     CargoTest, "src/tools/cargotest", "cargotest", Mode::Libstd;
 200     Compiletest, "src/tools/compiletest", "compiletest", Mode::Libtest;
 201     BuildManifest, "src/tools/build-manifest", "build-manifest", Mode::Libstd;
 202     RemoteTestClient, "src/tools/remote-test-client", "remote-test-client", Mode::Libstd;
 203     RustInstaller, "src/tools/rust-installer", "rust-installer", Mode::Libstd;
 204 );
 205
 206 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 207 pub struct RemoteTestServer {
 208     pub compiler: Compiler,
 209     pub target: Interned<String>,
 210 }
 211
 212 impl Step for RemoteTestServer {
 213     type Output = PathBuf;
 214
 215     fn should_run(run: ShouldRun) -> ShouldRun {
 216         run.path("src/tools/remote-test-server")
 217     }
 218
 219     fn make_run(run: RunConfig) {
 220         run.builder.ensure(RemoteTestServer {
 221             compiler: run.builder.compiler(run.builder.top_stage, run.builder.build.build),
 222             target: run.target,
 223         });
 224     }
 225
 226     fn run(self, builder: &Builder) -> PathBuf {
 227         builder.ensure(ToolBuild {
 228             compiler: self.compiler,
 229             target: self.target,
 230             tool: "remote-test-server",
 231             mode: Mode::Libstd,
 232         })
 233     }
 234 }
 235
 236 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 237 pub struct Rustdoc {
 238     pub host: Interned<String>,
 239 }
 240
 241 impl Step for Rustdoc {
 242     type Output = PathBuf;
 243     const DEFAULT: bool = true;
 244     const ONLY_HOSTS: bool = true;
 245
 246     fn should_run(run: ShouldRun) -> ShouldRun {
 247         run.path("src/tools/rustdoc")
 248     }
 249
 250     fn make_run(run: RunConfig) {
 251         run.builder.ensure(Rustdoc {
 252             host: run.host,
 253         });
 254     }
 255
 256     fn run(self, builder: &Builder) -> PathBuf {
 257         let build = builder.build;
 258         let target_compiler = builder.compiler(builder.top_stage, self.host);
 259         let target = target_compiler.host;
 260         let build_compiler = if target_compiler.stage == 0 {
 261             builder.compiler(0, builder.build.build)
 262         } else if target_compiler.stage >= 2 {
 263             // Past stage 2, we consider the compiler to be ABI-compatible and hence capable of
 264             // building rustdoc itself.
 265             builder.compiler(target_compiler.stage, builder.build.build)
 266         } else {
 267             // Similar to `compile::Assemble`, build with the previous stage's compiler. Otherwise
 268             // we'd have stageN/bin/rustc and stageN/bin/rustdoc be effectively different stage
 269             // compilers, which isn't what we want.
 270             builder.compiler(target_compiler.stage - 1, builder.build.build)
 271         };
 272
 273         builder.ensure(compile::Rustc { compiler: build_compiler, target });
 274
 275         let _folder = build.fold_output(|| format!("stage{}-rustdoc", target_compiler.stage));
 276         println!("Building rustdoc for stage{} ({})", target_compiler.stage, target_compiler.host);
 277
 278         let mut cargo = prepare_tool_cargo(builder, build_compiler, target, "rustdoc");
 279         build.run(&mut cargo);
 280         // Cargo adds a number of paths to the dylib search path on windows, which results in
 281         // the wrong rustdoc being executed. To avoid the conflicting rustdocs, we name the "tool"
 282         // rustdoc a different name.
 283         let tool_rustdoc = build.cargo_out(build_compiler, Mode::Tool, target)
 284             .join(exe("rustdoc-tool-binary", &target_compiler.host));
 285
 286         // don't create a stage0-sysroot/bin directory.
 287         if target_compiler.stage > 0 {
 288             let sysroot = builder.sysroot(target_compiler);
 289             let bindir = sysroot.join("bin");
 290             t!(fs::create_dir_all(&bindir));
 291             let bin_rustdoc = bindir.join(exe("rustdoc", &*target_compiler.host));
 292             let _ = fs::remove_file(&bin_rustdoc);
 293             copy(&tool_rustdoc, &bin_rustdoc);
 294             bin_rustdoc
 295         } else {
 296             tool_rustdoc
 297         }
 298     }
 299 }
 300
 301 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 302 pub struct Cargo {
 303     pub compiler: Compiler,
 304     pub target: Interned<String>,
 305 }
 306
 307 impl Step for Cargo {
 308     type Output = PathBuf;
 309     const DEFAULT: bool = true;
 310     const ONLY_HOSTS: bool = true;
 311
 312     fn should_run(run: ShouldRun) -> ShouldRun {
 313         let builder = run.builder;
 314         run.path("src/tools/cargo").default_condition(builder.build.config.extended)
 315     }
 316
 317     fn make_run(run: RunConfig) {
 318         run.builder.ensure(Cargo {
 319             compiler: run.builder.compiler(run.builder.top_stage, run.builder.build.build),
 320             target: run.target,
 321         });
 322     }
 323
 324     fn run(self, builder: &Builder) -> PathBuf {
 325         builder.ensure(native::Openssl {
 326             target: self.target,
 327         });
 328         // Cargo depends on procedural macros, which requires a full host
 329         // compiler to be available, so we need to depend on that.
 330         builder.ensure(compile::Rustc {
 331             compiler: self.compiler,
 332             target: builder.build.build,
 333         });
 334         builder.ensure(ToolBuild {
 335             compiler: self.compiler,
 336             target: self.target,
 337             tool: "cargo",
 338             mode: Mode::Librustc,
 339         })
 340     }
 341 }
 342
 343 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 344 pub struct Rls {
 345     pub compiler: Compiler,
 346     pub target: Interned<String>,
 347 }
 348
 349 impl Step for Rls {
 350     type Output = PathBuf;
 351     const DEFAULT: bool = true;
 352     const ONLY_HOSTS: bool = true;
 353
 354     fn should_run(run: ShouldRun) -> ShouldRun {
 355         let builder = run.builder;
 356         run.path("src/tools/rls").default_condition(builder.build.config.extended)
 357     }
 358
 359     fn make_run(run: RunConfig) {
 360         run.builder.ensure(Rls {
 361             compiler: run.builder.compiler(run.builder.top_stage, run.builder.build.build),
 362             target: run.target,
 363         });
 364     }
 365
 366     fn run(self, builder: &Builder) -> PathBuf {
 367         builder.ensure(native::Openssl {
 368             target: self.target,
 369         });
 370         // RLS depends on procedural macros, which requires a full host
 371         // compiler to be available, so we need to depend on that.
 372         builder.ensure(compile::Rustc {
 373             compiler: self.compiler,
 374             target: builder.build.build,
 375         });
 376         builder.ensure(ToolBuild {
 377             compiler: self.compiler,
 378             target: self.target,
 379             tool: "rls",
 380             mode: Mode::Librustc,
 381         })
 382     }
 383 }
 384
 385 impl<'a> Builder<'a> {
 386     /// Get a `Command` which is ready to run `tool` in `stage` built for
 387     /// `host`.
 388     pub fn tool_cmd(&self, tool: Tool) -> Command {
 389         let mut cmd = Command::new(self.tool_exe(tool));
 390         let compiler = self.compiler(0, self.build.build);
 391         self.prepare_tool_cmd(compiler, &mut cmd);
 392         cmd
 393     }
 394
 395     /// Prepares the `cmd` provided to be able to run the `compiler` provided.
 396     ///
 397     /// Notably this munges the dynamic library lookup path to point to the
 398     /// right location to run `compiler`.
 399     fn prepare_tool_cmd(&self, compiler: Compiler, cmd: &mut Command) {
 400         let host = &compiler.host;
 401         let mut paths: Vec<PathBuf> = vec![
 402             PathBuf::from(&self.sysroot_libdir(compiler, compiler.host)),
 403             self.cargo_out(compiler, Mode::Tool, *host).join("deps"),
 404         ];
 405
 406         // On MSVC a tool may invoke a C compiler (e.g. compiletest in run-make
 407         // mode) and that C compiler may need some extra PATH modification. Do
 408         // so here.
 409         if compiler.host.contains("msvc") {
 410             let curpaths = env::var_os("PATH").unwrap_or_default();
 411             let curpaths = env::split_paths(&curpaths).collect::<Vec<_>>();
 412             for &(ref k, ref v) in self.cc[&compiler.host].0.env() {
 413                 if k != "PATH" {
 414                     continue
 415                 }
 416                 for path in env::split_paths(v) {
 417                     if !curpaths.contains(&path) {
 418                         paths.push(path);
 419                     }
 420                 }
 421             }
 422         }
 423         add_lib_path(paths, cmd);
 424     }
 425 }