| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| //! Implementation of rustbuild, the Rust build system. |
| //! |
| //! This module, and its descendants, are the implementation of the Rust build |
| //! system. Most of this build system is backed by Cargo but the outer layer |
| //! here serves as the ability to orchestrate calling Cargo, sequencing Cargo |
| //! builds, building artifacts like LLVM, etc. |
| //! |
| //! More documentation can be found in each respective module below. |
| |
| extern crate build_helper; |
| extern crate cmake; |
| extern crate filetime; |
| extern crate gcc; |
| extern crate getopts; |
| extern crate md5; |
| extern crate num_cpus; |
| extern crate rustc_serialize; |
| extern crate toml; |
| |
| use std::cell::RefCell; |
| use std::collections::HashMap; |
| use std::env; |
| use std::fs::{self, File}; |
| use std::path::{PathBuf, Path}; |
| use std::process::Command; |
| |
| use build_helper::{run_silent, output}; |
| |
| use util::{exe, mtime, libdir, add_lib_path}; |
| |
| /// A helper macro to `unwrap` a result except also print out details like: |
| /// |
| /// * The file/line of the panic |
| /// * The expression that failed |
| /// * The error itself |
| /// |
| /// This is currently used judiciously throughout the build system rather than |
| /// using a `Result` with `try!`, but this may change on day... |
| macro_rules! t { |
| ($e:expr) => (match $e { |
| Ok(e) => e, |
| Err(e) => panic!("{} failed with {}", stringify!($e), e), |
| }) |
| } |
| |
| mod cc; |
| mod channel; |
| mod check; |
| mod clean; |
| mod compile; |
| mod config; |
| mod dist; |
| mod doc; |
| mod flags; |
| mod native; |
| mod sanity; |
| mod step; |
| pub mod util; |
| |
| #[cfg(windows)] |
| mod job; |
| |
| #[cfg(not(windows))] |
| mod job { |
| pub unsafe fn setup() {} |
| } |
| |
| pub use config::Config; |
| pub use flags::Flags; |
| |
| /// A structure representing a Rust compiler. |
| /// |
| /// Each compiler has a `stage` that it is associated with and a `host` that |
| /// corresponds to the platform the compiler runs on. This structure is used as |
| /// a parameter to many methods below. |
| #[derive(Eq, PartialEq, Clone, Copy, Hash, Debug)] |
| pub struct Compiler<'a> { |
| stage: u32, |
| host: &'a str, |
| } |
| |
| /// Global configuration for the build system. |
| /// |
| /// This structure transitively contains all configuration for the build system. |
| /// All filesystem-encoded configuration is in `config`, all flags are in |
| /// `flags`, and then parsed or probed information is listed in the keys below. |
| /// |
| /// This structure is a parameter of almost all methods in the build system, |
| /// although most functions are implemented as free functions rather than |
| /// methods specifically on this structure itself (to make it easier to |
| /// organize). |
| pub struct Build { |
| // User-specified configuration via config.toml |
| config: Config, |
| |
| // User-specified configuration via CLI flags |
| flags: Flags, |
| |
| // Derived properties from the above two configurations |
| cargo: PathBuf, |
| rustc: PathBuf, |
| src: PathBuf, |
| out: PathBuf, |
| release: String, |
| unstable_features: bool, |
| ver_hash: Option<String>, |
| short_ver_hash: Option<String>, |
| ver_date: Option<String>, |
| version: String, |
| package_vers: String, |
| local_rebuild: bool, |
| bootstrap_key: String, |
| bootstrap_key_stage0: String, |
| |
| // Probed tools at runtime |
| gdb_version: Option<String>, |
| lldb_version: Option<String>, |
| lldb_python_dir: Option<String>, |
| |
| // Runtime state filled in later on |
| cc: HashMap<String, (gcc::Tool, Option<PathBuf>)>, |
| cxx: HashMap<String, gcc::Tool>, |
| compiler_rt_built: RefCell<HashMap<String, PathBuf>>, |
| } |
| |
| /// The various "modes" of invoking Cargo. |
| /// |
| /// These entries currently correspond to the various output directories of the |
| /// build system, with each mod generating output in a different directory. |
| #[derive(Clone, Copy)] |
| pub enum Mode { |
| /// This cargo is going to build the standard library, placing output in the |
| /// "stageN-std" directory. |
| Libstd, |
| |
| /// This cargo is going to build libtest, placing output in the |
| /// "stageN-test" directory. |
| Libtest, |
| |
| /// This cargo is going to build librustc and compiler libraries, placing |
| /// output in the "stageN-rustc" directory. |
| Librustc, |
| |
| /// This cargo is going to some build tool, placing output in the |
| /// "stageN-tools" directory. |
| Tool, |
| } |
| |
| impl Build { |
| /// Creates a new set of build configuration from the `flags` on the command |
| /// line and the filesystem `config`. |
| /// |
| /// By default all build output will be placed in the current directory. |
| pub fn new(flags: Flags, config: Config) -> Build { |
| let cwd = t!(env::current_dir()); |
| let src = flags.src.clone().unwrap_or(cwd.clone()); |
| let out = cwd.join("build"); |
| |
| let stage0_root = out.join(&config.build).join("stage0/bin"); |
| let rustc = match config.rustc { |
| Some(ref s) => PathBuf::from(s), |
| None => stage0_root.join(exe("rustc", &config.build)), |
| }; |
| let cargo = match config.cargo { |
| Some(ref s) => PathBuf::from(s), |
| None => stage0_root.join(exe("cargo", &config.build)), |
| }; |
| let local_rebuild = config.local_rebuild; |
| |
| Build { |
| flags: flags, |
| config: config, |
| cargo: cargo, |
| rustc: rustc, |
| src: src, |
| out: out, |
| |
| release: String::new(), |
| unstable_features: false, |
| ver_hash: None, |
| short_ver_hash: None, |
| ver_date: None, |
| version: String::new(), |
| local_rebuild: local_rebuild, |
| bootstrap_key: String::new(), |
| bootstrap_key_stage0: String::new(), |
| package_vers: String::new(), |
| cc: HashMap::new(), |
| cxx: HashMap::new(), |
| compiler_rt_built: RefCell::new(HashMap::new()), |
| gdb_version: None, |
| lldb_version: None, |
| lldb_python_dir: None, |
| } |
| } |
| |
| /// Executes the entire build, as configured by the flags and configuration. |
| pub fn build(&mut self) { |
| use step::Source::*; |
| |
| unsafe { |
| job::setup(); |
| } |
| |
| if self.flags.clean { |
| return clean::clean(self); |
| } |
| |
| self.verbose("finding compilers"); |
| cc::find(self); |
| self.verbose("running sanity check"); |
| sanity::check(self); |
| self.verbose("collecting channel variables"); |
| channel::collect(self); |
| // If local-rust is the same as the current version, then force a local-rebuild |
| let local_version_verbose = output( |
| Command::new(&self.rustc).arg("--version").arg("--verbose")); |
| let local_release = local_version_verbose |
| .lines().filter(|x| x.starts_with("release:")) |
| .next().unwrap().trim_left_matches("release:").trim(); |
| if local_release == self.release { |
| self.verbose(&format!("auto-detected local-rebuild {}", self.release)); |
| self.local_rebuild = true; |
| } |
| self.verbose("updating submodules"); |
| self.update_submodules(); |
| |
| // The main loop of the build system. |
| // |
| // The `step::all` function returns a topographically sorted list of all |
| // steps that need to be executed as part of this build. Each step has a |
| // corresponding entry in `step.rs` and indicates some unit of work that |
| // needs to be done as part of the build. |
| // |
| // Almost all of these are simple one-liners that shell out to the |
| // corresponding functionality in the extra modules, where more |
| // documentation can be found. |
| for target in step::all(self) { |
| let doc_out = self.out.join(&target.target).join("doc"); |
| match target.src { |
| Llvm { _dummy } => { |
| native::llvm(self, target.target); |
| } |
| CompilerRt { _dummy } => { |
| native::compiler_rt(self, target.target); |
| } |
| TestHelpers { _dummy } => { |
| native::test_helpers(self, target.target); |
| } |
| Libstd { compiler } => { |
| compile::std(self, target.target, &compiler); |
| } |
| Libtest { compiler } => { |
| compile::test(self, target.target, &compiler); |
| } |
| Librustc { compiler } => { |
| compile::rustc(self, target.target, &compiler); |
| } |
| LibstdLink { compiler, host } => { |
| compile::std_link(self, target.target, &compiler, host); |
| } |
| LibtestLink { compiler, host } => { |
| compile::test_link(self, target.target, &compiler, host); |
| } |
| LibrustcLink { compiler, host } => { |
| compile::rustc_link(self, target.target, &compiler, host); |
| } |
| Rustc { stage: 0 } => { |
| // nothing to do... |
| } |
| Rustc { stage } => { |
| compile::assemble_rustc(self, stage, target.target); |
| } |
| ToolLinkchecker { stage } => { |
| compile::tool(self, stage, target.target, "linkchecker"); |
| } |
| ToolRustbook { stage } => { |
| compile::tool(self, stage, target.target, "rustbook"); |
| } |
| ToolErrorIndex { stage } => { |
| compile::tool(self, stage, target.target, |
| "error_index_generator"); |
| } |
| ToolCargoTest { stage } => { |
| compile::tool(self, stage, target.target, "cargotest"); |
| } |
| ToolTidy { stage } => { |
| compile::tool(self, stage, target.target, "tidy"); |
| } |
| ToolCompiletest { stage } => { |
| compile::tool(self, stage, target.target, "compiletest"); |
| } |
| DocBook { stage } => { |
| doc::rustbook(self, stage, target.target, "book", &doc_out); |
| } |
| DocNomicon { stage } => { |
| doc::rustbook(self, stage, target.target, "nomicon", |
| &doc_out); |
| } |
| DocStyle { stage } => { |
| doc::rustbook(self, stage, target.target, "style", |
| &doc_out); |
| } |
| DocStandalone { stage } => { |
| doc::standalone(self, stage, target.target, &doc_out); |
| } |
| DocStd { stage } => { |
| doc::std(self, stage, target.target, &doc_out); |
| } |
| DocTest { stage } => { |
| doc::test(self, stage, target.target, &doc_out); |
| } |
| DocRustc { stage } => { |
| doc::rustc(self, stage, target.target, &doc_out); |
| } |
| DocErrorIndex { stage } => { |
| doc::error_index(self, stage, target.target, &doc_out); |
| } |
| |
| CheckLinkcheck { stage } => { |
| check::linkcheck(self, stage, target.target); |
| } |
| CheckCargoTest { stage } => { |
| check::cargotest(self, stage, target.target); |
| } |
| CheckTidy { stage } => { |
| check::tidy(self, stage, target.target); |
| } |
| CheckRPass { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "run-pass", "run-pass"); |
| } |
| CheckRPassFull { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "run-pass", "run-pass-fulldeps"); |
| } |
| CheckCFail { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "compile-fail", "compile-fail"); |
| } |
| CheckCFailFull { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "compile-fail", "compile-fail-fulldeps") |
| } |
| CheckPFail { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "parse-fail", "parse-fail"); |
| } |
| CheckRFail { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "run-fail", "run-fail"); |
| } |
| CheckRFailFull { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "run-fail", "run-fail-fulldeps"); |
| } |
| CheckPretty { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "pretty", "pretty"); |
| } |
| CheckPrettyRPass { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "pretty", "run-pass"); |
| } |
| CheckPrettyRPassFull { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "pretty", "run-pass-fulldeps"); |
| } |
| CheckPrettyRFail { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "pretty", "run-fail"); |
| } |
| CheckPrettyRFailFull { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "pretty", "run-fail-fulldeps"); |
| } |
| CheckPrettyRPassValgrind { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "pretty", "run-pass-valgrind"); |
| } |
| CheckMirOpt { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "mir-opt", "mir-opt"); |
| } |
| CheckCodegen { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "codegen", "codegen"); |
| } |
| CheckCodegenUnits { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "codegen-units", "codegen-units"); |
| } |
| CheckIncremental { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "incremental", "incremental"); |
| } |
| CheckUi { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "ui", "ui"); |
| } |
| CheckDebuginfo { compiler } => { |
| if target.target.contains("msvc") { |
| // nothing to do |
| } else if target.target.contains("apple") { |
| check::compiletest(self, &compiler, target.target, |
| "debuginfo-lldb", "debuginfo"); |
| } else { |
| check::compiletest(self, &compiler, target.target, |
| "debuginfo-gdb", "debuginfo"); |
| } |
| } |
| CheckRustdoc { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "rustdoc", "rustdoc"); |
| } |
| CheckRPassValgrind { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "run-pass-valgrind", "run-pass-valgrind"); |
| } |
| CheckDocs { compiler } => { |
| check::docs(self, &compiler); |
| } |
| CheckErrorIndex { compiler } => { |
| check::error_index(self, &compiler); |
| } |
| CheckRMake { compiler } => { |
| check::compiletest(self, &compiler, target.target, |
| "run-make", "run-make") |
| } |
| CheckCrateStd { compiler } => { |
| check::krate(self, &compiler, target.target, Mode::Libstd) |
| } |
| CheckCrateTest { compiler } => { |
| check::krate(self, &compiler, target.target, Mode::Libtest) |
| } |
| CheckCrateRustc { compiler } => { |
| check::krate(self, &compiler, target.target, Mode::Librustc) |
| } |
| |
| DistDocs { stage } => dist::docs(self, stage, target.target), |
| DistMingw { _dummy } => dist::mingw(self, target.target), |
| DistRustc { stage } => dist::rustc(self, stage, target.target), |
| DistStd { compiler } => dist::std(self, &compiler, target.target), |
| |
| DebuggerScripts { stage } => { |
| let compiler = Compiler::new(stage, target.target); |
| dist::debugger_scripts(self, |
| &self.sysroot(&compiler), |
| target.target); |
| } |
| |
| AndroidCopyLibs { compiler } => { |
| check::android_copy_libs(self, &compiler, target.target); |
| } |
| |
| // pseudo-steps |
| Dist { .. } | |
| Doc { .. } | |
| CheckTarget { .. } | |
| Check { .. } => {} |
| } |
| } |
| } |
| |
| /// Updates all git submodules that we have. |
| /// |
| /// This will detect if any submodules are out of date an run the necessary |
| /// commands to sync them all with upstream. |
| fn update_submodules(&self) { |
| if !self.config.submodules { |
| return |
| } |
| if fs::metadata(self.src.join(".git")).is_err() { |
| return |
| } |
| let git_submodule = || { |
| let mut cmd = Command::new("git"); |
| cmd.current_dir(&self.src).arg("submodule"); |
| return cmd |
| }; |
| |
| // FIXME: this takes a seriously long time to execute on Windows and a |
| // nontrivial amount of time on Unix, we should have a better way |
| // of detecting whether we need to run all the submodule commands |
| // below. |
| let out = output(git_submodule().arg("status")); |
| if !out.lines().any(|l| l.starts_with("+") || l.starts_with("-")) { |
| return |
| } |
| |
| self.run(git_submodule().arg("sync")); |
| self.run(git_submodule().arg("init")); |
| self.run(git_submodule().arg("update")); |
| self.run(git_submodule().arg("update").arg("--recursive")); |
| self.run(git_submodule().arg("status").arg("--recursive")); |
| self.run(git_submodule().arg("foreach").arg("--recursive") |
| .arg("git").arg("clean").arg("-fdx")); |
| self.run(git_submodule().arg("foreach").arg("--recursive") |
| .arg("git").arg("checkout").arg(".")); |
| } |
| |
| /// Clear out `dir` if `input` is newer. |
| /// |
| /// After this executes, it will also ensure that `dir` exists. |
| fn clear_if_dirty(&self, dir: &Path, input: &Path) { |
| let stamp = dir.join(".stamp"); |
| if mtime(&stamp) < mtime(input) { |
| self.verbose(&format!("Dirty - {}", dir.display())); |
| let _ = fs::remove_dir_all(dir); |
| } |
| t!(fs::create_dir_all(dir)); |
| t!(File::create(stamp)); |
| } |
| |
| /// Prepares an invocation of `cargo` to be run. |
| /// |
| /// This will create a `Command` that represents a pending execution of |
| /// Cargo. This cargo will be configured to use `compiler` as the actual |
| /// rustc compiler, its output will be scoped by `mode`'s output directory, |
| /// it will pass the `--target` flag for the specified `target`, and will be |
| /// executing the Cargo command `cmd`. |
| fn cargo(&self, |
| compiler: &Compiler, |
| mode: Mode, |
| target: &str, |
| cmd: &str) -> Command { |
| let mut cargo = Command::new(&self.cargo); |
| let out_dir = self.stage_out(compiler, mode); |
| cargo.env("CARGO_TARGET_DIR", out_dir) |
| .arg(cmd) |
| .arg("-j").arg(self.jobs().to_string()) |
| .arg("--target").arg(target); |
| |
| let stage; |
| if compiler.stage == 0 && self.local_rebuild { |
| // Assume the local-rebuild rustc already has stage1 features. |
| stage = 1; |
| } else { |
| stage = compiler.stage; |
| } |
| |
| // Customize the compiler we're running. Specify the compiler to cargo |
| // as our shim and then pass it some various options used to configure |
| // how the actual compiler itself is called. |
| // |
| // These variables are primarily all read by |
| // src/bootstrap/{rustc,rustdoc.rs} |
| cargo.env("RUSTC", self.out.join("bootstrap/debug/rustc")) |
| .env("RUSTC_REAL", self.compiler_path(compiler)) |
| .env("RUSTC_STAGE", stage.to_string()) |
| .env("RUSTC_DEBUGINFO", self.config.rust_debuginfo.to_string()) |
| .env("RUSTC_CODEGEN_UNITS", |
| self.config.rust_codegen_units.to_string()) |
| .env("RUSTC_DEBUG_ASSERTIONS", |
| self.config.rust_debug_assertions.to_string()) |
| .env("RUSTC_SNAPSHOT", &self.rustc) |
| .env("RUSTC_SYSROOT", self.sysroot(compiler)) |
| .env("RUSTC_LIBDIR", self.rustc_libdir(compiler)) |
| .env("RUSTC_SNAPSHOT_LIBDIR", self.rustc_snapshot_libdir()) |
| .env("RUSTC_RPATH", self.config.rust_rpath.to_string()) |
| .env("RUSTDOC", self.out.join("bootstrap/debug/rustdoc")) |
| .env("RUSTDOC_REAL", self.rustdoc(compiler)) |
| .env("RUSTC_FLAGS", self.rustc_flags(target).join(" ")); |
| |
| self.add_bootstrap_key(compiler, &mut cargo); |
| |
| // Specify some various options for build scripts used throughout |
| // the build. |
| // |
| // FIXME: the guard against msvc shouldn't need to be here |
| if !target.contains("msvc") { |
| cargo.env(format!("CC_{}", target), self.cc(target)) |
| .env(format!("AR_{}", target), self.ar(target).unwrap()) // only msvc is None |
| .env(format!("CFLAGS_{}", target), self.cflags(target).join(" ")); |
| } |
| |
| // If we're building for OSX, inform the compiler and the linker that |
| // we want to build a compiler runnable on 10.7 |
| if target.contains("apple-darwin") { |
| cargo.env("MACOSX_DEPLOYMENT_TARGET", "10.7"); |
| } |
| |
| // Environment variables *required* needed throughout the build |
| // |
| // FIXME: should update code to not require this env var |
| cargo.env("CFG_COMPILER_HOST_TRIPLE", target); |
| |
| if self.config.verbose || self.flags.verbose { |
| cargo.arg("-v"); |
| } |
| if self.config.rust_optimize { |
| cargo.arg("--release"); |
| } |
| return cargo |
| } |
| |
| /// Get a path to the compiler specified. |
| fn compiler_path(&self, compiler: &Compiler) -> PathBuf { |
| if compiler.is_snapshot(self) { |
| self.rustc.clone() |
| } else { |
| self.sysroot(compiler).join("bin").join(exe("rustc", compiler.host)) |
| } |
| } |
| |
| /// Get the specified tool built by the specified compiler |
| fn tool(&self, compiler: &Compiler, tool: &str) -> PathBuf { |
| self.cargo_out(compiler, Mode::Tool, compiler.host) |
| .join(exe(tool, compiler.host)) |
| } |
| |
| /// Get the `rustdoc` executable next to the specified compiler |
| fn rustdoc(&self, compiler: &Compiler) -> PathBuf { |
| let mut rustdoc = self.compiler_path(compiler); |
| rustdoc.pop(); |
| rustdoc.push(exe("rustdoc", compiler.host)); |
| return rustdoc |
| } |
| |
| /// Get a `Command` which is ready to run `tool` in `stage` built for |
| /// `host`. |
| fn tool_cmd(&self, compiler: &Compiler, tool: &str) -> Command { |
| let mut cmd = Command::new(self.tool(&compiler, tool)); |
| let host = compiler.host; |
| let paths = vec![ |
| self.cargo_out(compiler, Mode::Libstd, host).join("deps"), |
| self.cargo_out(compiler, Mode::Libtest, host).join("deps"), |
| self.cargo_out(compiler, Mode::Librustc, host).join("deps"), |
| self.cargo_out(compiler, Mode::Tool, host).join("deps"), |
| ]; |
| add_lib_path(paths, &mut cmd); |
| return cmd |
| } |
| |
| /// Get the space-separated set of activated features for the standard |
| /// library. |
| fn std_features(&self) -> String { |
| let mut features = String::new(); |
| if self.config.debug_jemalloc { |
| features.push_str(" debug-jemalloc"); |
| } |
| if self.config.use_jemalloc { |
| features.push_str(" jemalloc"); |
| } |
| if self.config.backtrace { |
| features.push_str(" backtrace"); |
| } |
| return features |
| } |
| |
| /// Get the space-separated set of activated features for the compiler. |
| fn rustc_features(&self) -> String { |
| let mut features = String::new(); |
| if self.config.use_jemalloc { |
| features.push_str(" jemalloc"); |
| } |
| return features |
| } |
| |
| /// Component directory that Cargo will produce output into (e.g. |
| /// release/debug) |
| fn cargo_dir(&self) -> &'static str { |
| if self.config.rust_optimize {"release"} else {"debug"} |
| } |
| |
| /// Returns the sysroot for the `compiler` specified that *this build system |
| /// generates*. |
| /// |
| /// That is, the sysroot for the stage0 compiler is not what the compiler |
| /// thinks it is by default, but it's the same as the default for stages |
| /// 1-3. |
| fn sysroot(&self, compiler: &Compiler) -> PathBuf { |
| if compiler.stage == 0 { |
| self.out.join(compiler.host).join("stage0-sysroot") |
| } else { |
| self.out.join(compiler.host).join(format!("stage{}", compiler.stage)) |
| } |
| } |
| |
| /// Returns the libdir where the standard library and other artifacts are |
| /// found for a compiler's sysroot. |
| fn sysroot_libdir(&self, compiler: &Compiler, target: &str) -> PathBuf { |
| self.sysroot(compiler).join("lib").join("rustlib") |
| .join(target).join("lib") |
| } |
| |
| /// Returns the root directory for all output generated in a particular |
| /// stage when running with a particular host compiler. |
| /// |
| /// The mode indicates what the root directory is for. |
| fn stage_out(&self, compiler: &Compiler, mode: Mode) -> PathBuf { |
| let suffix = match mode { |
| Mode::Libstd => "-std", |
| Mode::Libtest => "-test", |
| Mode::Tool => "-tools", |
| Mode::Librustc => "-rustc", |
| }; |
| self.out.join(compiler.host) |
| .join(format!("stage{}{}", compiler.stage, suffix)) |
| } |
| |
| /// Returns the root output directory for all Cargo output in a given stage, |
| /// running a particular comipler, wehther or not we're building the |
| /// standard library, and targeting the specified architecture. |
| fn cargo_out(&self, |
| compiler: &Compiler, |
| mode: Mode, |
| target: &str) -> PathBuf { |
| self.stage_out(compiler, mode).join(target).join(self.cargo_dir()) |
| } |
| |
| /// Root output directory for LLVM compiled for `target` |
| /// |
| /// Note that if LLVM is configured externally then the directory returned |
| /// will likely be empty. |
| fn llvm_out(&self, target: &str) -> PathBuf { |
| self.out.join(target).join("llvm") |
| } |
| |
| /// Returns the path to `llvm-config` for the specified target. |
| /// |
| /// If a custom `llvm-config` was specified for target then that's returned |
| /// instead. |
| fn llvm_config(&self, target: &str) -> PathBuf { |
| let target_config = self.config.target_config.get(target); |
| if let Some(s) = target_config.and_then(|c| c.llvm_config.as_ref()) { |
| s.clone() |
| } else { |
| self.llvm_out(&self.config.build).join("bin") |
| .join(exe("llvm-config", target)) |
| } |
| } |
| |
| /// Returns the path to `FileCheck` binary for the specified target |
| fn llvm_filecheck(&self, target: &str) -> PathBuf { |
| let target_config = self.config.target_config.get(target); |
| if let Some(s) = target_config.and_then(|c| c.llvm_config.as_ref()) { |
| s.parent().unwrap().join(exe("FileCheck", target)) |
| } else { |
| let base = self.llvm_out(&self.config.build).join("build"); |
| let exe = exe("FileCheck", target); |
| if self.config.build.contains("msvc") { |
| base.join("Release/bin").join(exe) |
| } else { |
| base.join("bin").join(exe) |
| } |
| } |
| } |
| |
| /// Root output directory for compiler-rt compiled for `target` |
| fn compiler_rt_out(&self, target: &str) -> PathBuf { |
| self.out.join(target).join("compiler-rt") |
| } |
| |
| /// Root output directory for rust_test_helpers library compiled for |
| /// `target` |
| fn test_helpers_out(&self, target: &str) -> PathBuf { |
| self.out.join(target).join("rust-test-helpers") |
| } |
| |
| /// Adds the compiler's directory of dynamic libraries to `cmd`'s dynamic |
| /// library lookup path. |
| fn add_rustc_lib_path(&self, compiler: &Compiler, cmd: &mut Command) { |
| // Windows doesn't need dylib path munging because the dlls for the |
| // compiler live next to the compiler and the system will find them |
| // automatically. |
| if cfg!(windows) { |
| return |
| } |
| |
| add_lib_path(vec![self.rustc_libdir(compiler)], cmd); |
| } |
| |
| /// Adds the compiler's bootstrap key to the environment of `cmd`. |
| fn add_bootstrap_key(&self, compiler: &Compiler, cmd: &mut Command) { |
| // In stage0 we're using a previously released stable compiler, so we |
| // use the stage0 bootstrap key. Otherwise we use our own build's |
| // bootstrap key. |
| let bootstrap_key = if compiler.is_snapshot(self) && !self.local_rebuild { |
| &self.bootstrap_key_stage0 |
| } else { |
| &self.bootstrap_key |
| }; |
| cmd.env("RUSTC_BOOTSTRAP_KEY", bootstrap_key); |
| } |
| |
| /// Returns the compiler's libdir where it stores the dynamic libraries that |
| /// it itself links against. |
| /// |
| /// For example this returns `<sysroot>/lib` on Unix and `<sysroot>/bin` on |
| /// Windows. |
| fn rustc_libdir(&self, compiler: &Compiler) -> PathBuf { |
| if compiler.is_snapshot(self) { |
| self.rustc_snapshot_libdir() |
| } else { |
| self.sysroot(compiler).join(libdir(compiler.host)) |
| } |
| } |
| |
| /// Returns the libdir of the snapshot compiler. |
| fn rustc_snapshot_libdir(&self) -> PathBuf { |
| self.rustc.parent().unwrap().parent().unwrap() |
| .join(libdir(&self.config.build)) |
| } |
| |
| /// Runs a command, printing out nice contextual information if it fails. |
| fn run(&self, cmd: &mut Command) { |
| self.verbose(&format!("running: {:?}", cmd)); |
| run_silent(cmd) |
| } |
| |
| /// Prints a message if this build is configured in verbose mode. |
| fn verbose(&self, msg: &str) { |
| if self.flags.verbose || self.config.verbose { |
| println!("{}", msg); |
| } |
| } |
| |
| /// Returns the number of parallel jobs that have been configured for this |
| /// build. |
| fn jobs(&self) -> u32 { |
| self.flags.jobs.unwrap_or(num_cpus::get() as u32) |
| } |
| |
| /// Returns the path to the C compiler for the target specified. |
| fn cc(&self, target: &str) -> &Path { |
| self.cc[target].0.path() |
| } |
| |
| /// Returns a list of flags to pass to the C compiler for the target |
| /// specified. |
| fn cflags(&self, target: &str) -> Vec<String> { |
| // Filter out -O and /O (the optimization flags) that we picked up from |
| // gcc-rs because the build scripts will determine that for themselves. |
| let mut base = self.cc[target].0.args().iter() |
| .map(|s| s.to_string_lossy().into_owned()) |
| .filter(|s| !s.starts_with("-O") && !s.starts_with("/O")) |
| .collect::<Vec<_>>(); |
| |
| // If we're compiling on OSX then we add a few unconditional flags |
| // indicating that we want libc++ (more filled out than libstdc++) and |
| // we want to compile for 10.7. This way we can ensure that |
| // LLVM/jemalloc/etc are all properly compiled. |
| if target.contains("apple-darwin") { |
| base.push("-stdlib=libc++".into()); |
| base.push("-mmacosx-version-min=10.7".into()); |
| } |
| // This is a hack, because newer binutils broke things on some vms/distros |
| // (i.e., linking against unknown relocs disabled by the following flag) |
| // See: https://github.com/rust-lang/rust/issues/34978 |
| if target == "x86_64-unknown-linux-musl" { |
| base.push("-Wa,-mrelax-relocations=no".into()); |
| } |
| return base |
| } |
| |
| /// Returns the path to the `ar` archive utility for the target specified. |
| fn ar(&self, target: &str) -> Option<&Path> { |
| self.cc[target].1.as_ref().map(|p| &**p) |
| } |
| |
| /// Returns the path to the C++ compiler for the target specified, may panic |
| /// if no C++ compiler was configured for the target. |
| fn cxx(&self, target: &str) -> &Path { |
| self.cxx[target].path() |
| } |
| |
| /// Returns flags to pass to the compiler to generate code for `target`. |
| fn rustc_flags(&self, target: &str) -> Vec<String> { |
| // New flags should be added here with great caution! |
| // |
| // It's quite unfortunate to **require** flags to generate code for a |
| // target, so it should only be passed here if absolutely necessary! |
| // Most default configuration should be done through target specs rather |
| // than an entry here. |
| |
| let mut base = Vec::new(); |
| if target != self.config.build && !target.contains("msvc") { |
| base.push(format!("-Clinker={}", self.cc(target).display())); |
| } |
| return base |
| } |
| } |
| |
| impl<'a> Compiler<'a> { |
| /// Creates a new complier for the specified stage/host |
| fn new(stage: u32, host: &'a str) -> Compiler<'a> { |
| Compiler { stage: stage, host: host } |
| } |
| |
| /// Returns whether this is a snapshot compiler for `build`'s configuration |
| fn is_snapshot(&self, build: &Build) -> bool { |
| self.stage == 0 && self.host == build.config.build |
| } |
| } |
