768 lines
28 KiB
Rust
768 lines
28 KiB
Rust
use std::collections::HashSet;
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use std::env;
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use std::fs;
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use std::path::PathBuf;
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use std::process::{exit, Command};
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use build_helper::t;
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use crate::builder::{Builder, Cargo as CargoCommand, RunConfig, ShouldRun, Step};
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use crate::channel::GitInfo;
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use crate::compile;
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use crate::config::TargetSelection;
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use crate::toolstate::ToolState;
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use crate::util::{add_dylib_path, exe};
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use crate::Compiler;
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use crate::Mode;
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#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
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pub enum SourceType {
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InTree,
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Submodule,
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}
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#[derive(Debug, Clone, Hash, PartialEq, Eq)]
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struct ToolBuild {
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compiler: Compiler,
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target: TargetSelection,
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tool: &'static str,
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path: &'static str,
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mode: Mode,
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is_optional_tool: bool,
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source_type: SourceType,
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extra_features: Vec<String>,
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}
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impl Step for ToolBuild {
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type Output = Option<PathBuf>;
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fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
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run.never()
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}
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/// Builds a tool in `src/tools`
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///
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/// This will build the specified tool with the specified `host` compiler in
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/// `stage` into the normal cargo output directory.
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fn run(self, builder: &Builder<'_>) -> Option<PathBuf> {
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let compiler = self.compiler;
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let target = self.target;
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let mut tool = self.tool;
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let path = self.path;
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let is_optional_tool = self.is_optional_tool;
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match self.mode {
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Mode::ToolRustc => builder.ensure(compile::Rustc { compiler, target }),
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Mode::ToolStd => builder.ensure(compile::Std { compiler, target }),
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Mode::ToolBootstrap => {} // uses downloaded stage0 compiler libs
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_ => panic!("unexpected Mode for tool build"),
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}
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let cargo = prepare_tool_cargo(
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builder,
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compiler,
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self.mode,
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target,
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"build",
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path,
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self.source_type,
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&self.extra_features,
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);
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builder.info(&format!("Building stage{} tool {} ({})", compiler.stage, tool, target));
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let mut duplicates = Vec::new();
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let is_expected = compile::stream_cargo(builder, cargo, vec![], &mut |msg| {
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// Only care about big things like the RLS/Cargo for now
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match tool {
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"rls" | "cargo" | "clippy-driver" | "miri" | "rustfmt" => {}
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_ => return,
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}
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let (id, features, filenames) = match msg {
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compile::CargoMessage::CompilerArtifact {
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package_id,
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features,
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filenames,
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target: _,
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} => (package_id, features, filenames),
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_ => return,
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};
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let features = features.iter().map(|s| s.to_string()).collect::<Vec<_>>();
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for path in filenames {
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let val = (tool, PathBuf::from(&*path), features.clone());
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// we're only interested in deduplicating rlibs for now
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if val.1.extension().and_then(|s| s.to_str()) != Some("rlib") {
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continue;
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}
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// Don't worry about compiles that turn out to be host
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// dependencies or build scripts. To skip these we look for
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// anything that goes in `.../release/deps` but *doesn't* go in
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// `$target/release/deps`. This ensure that outputs in
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// `$target/release` are still considered candidates for
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// deduplication.
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if let Some(parent) = val.1.parent() {
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if parent.ends_with("release/deps") {
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let maybe_target = parent
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.parent()
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.and_then(|p| p.parent())
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.and_then(|p| p.file_name())
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.and_then(|p| p.to_str())
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.unwrap();
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if maybe_target != &*target.triple {
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continue;
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}
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}
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}
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// Record that we've built an artifact for `id`, and if one was
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// already listed then we need to see if we reused the same
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// artifact or produced a duplicate.
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let mut artifacts = builder.tool_artifacts.borrow_mut();
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let prev_artifacts = artifacts.entry(target).or_default();
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let prev = match prev_artifacts.get(&*id) {
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Some(prev) => prev,
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None => {
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prev_artifacts.insert(id.to_string(), val);
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continue;
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}
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};
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if prev.1 == val.1 {
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return; // same path, same artifact
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}
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// If the paths are different and one of them *isn't* inside of
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// `release/deps`, then it means it's probably in
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// `$target/release`, or it's some final artifact like
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// `libcargo.rlib`. In these situations Cargo probably just
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// copied it up from `$target/release/deps/libcargo-xxxx.rlib`,
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// so if the features are equal we can just skip it.
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let prev_no_hash = prev.1.parent().unwrap().ends_with("release/deps");
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let val_no_hash = val.1.parent().unwrap().ends_with("release/deps");
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if prev.2 == val.2 || !prev_no_hash || !val_no_hash {
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return;
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}
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// ... and otherwise this looks like we duplicated some sort of
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// compilation, so record it to generate an error later.
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duplicates.push((id.to_string(), val, prev.clone()));
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}
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});
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if is_expected && !duplicates.is_empty() {
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println!(
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"duplicate artifacts found when compiling a tool, this \
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typically means that something was recompiled because \
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a transitive dependency has different features activated \
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than in a previous build:\n"
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);
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println!(
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"the following dependencies are duplicated although they \
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have the same features enabled:"
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);
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let (same, different): (Vec<_>, Vec<_>) =
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duplicates.into_iter().partition(|(_, cur, prev)| cur.2 == prev.2);
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for (id, cur, prev) in same {
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println!(" {}", id);
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// same features
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println!(" `{}` ({:?})\n `{}` ({:?})", cur.0, cur.1, prev.0, prev.1);
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}
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println!("the following dependencies have different features:");
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for (id, cur, prev) in different {
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println!(" {}", id);
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let cur_features: HashSet<_> = cur.2.into_iter().collect();
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let prev_features: HashSet<_> = prev.2.into_iter().collect();
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println!(
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" `{}` additionally enabled features {:?} at {:?}",
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cur.0,
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&cur_features - &prev_features,
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cur.1
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);
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println!(
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" `{}` additionally enabled features {:?} at {:?}",
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prev.0,
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&prev_features - &cur_features,
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prev.1
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);
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}
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println!();
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println!(
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"to fix this you will probably want to edit the local \
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src/tools/rustc-workspace-hack/Cargo.toml crate, as \
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that will update the dependency graph to ensure that \
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these crates all share the same feature set"
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);
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panic!("tools should not compile multiple copies of the same crate");
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}
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builder.save_toolstate(
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tool,
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if is_expected { ToolState::TestFail } else { ToolState::BuildFail },
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);
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if !is_expected {
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if !is_optional_tool {
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exit(1);
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} else {
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None
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}
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} else {
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// HACK(#82501): on Windows, the tools directory gets added to PATH when running tests, and
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// compiletest confuses HTML tidy with the in-tree tidy. Name the in-tree tidy something
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// different so the problem doesn't come up.
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if tool == "tidy" {
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tool = "rust-tidy";
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}
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let cargo_out =
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builder.cargo_out(compiler, self.mode, target).join(exe(tool, compiler.host));
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let bin = builder.tools_dir(compiler).join(exe(tool, compiler.host));
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builder.copy(&cargo_out, &bin);
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Some(bin)
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}
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}
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}
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pub fn prepare_tool_cargo(
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builder: &Builder<'_>,
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compiler: Compiler,
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mode: Mode,
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target: TargetSelection,
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command: &'static str,
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path: &'static str,
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source_type: SourceType,
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extra_features: &[String],
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) -> CargoCommand {
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let mut cargo = builder.cargo(compiler, mode, source_type, target, command);
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let dir = builder.src.join(path);
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cargo.arg("--manifest-path").arg(dir.join("Cargo.toml"));
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let mut features = extra_features.to_vec();
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if builder.build.config.cargo_native_static {
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if path.ends_with("cargo")
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|| path.ends_with("rls")
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|| path.ends_with("clippy")
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|| path.ends_with("miri")
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|| path.ends_with("rustfmt")
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{
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cargo.env("LIBZ_SYS_STATIC", "1");
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features.push("rustc-workspace-hack/all-static".to_string());
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}
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}
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// if tools are using lzma we want to force the build script to build its
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// own copy
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cargo.env("LZMA_API_STATIC", "1");
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// CFG_RELEASE is needed by rustfmt (and possibly other tools) which
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// import rustc-ap-rustc_attr which requires this to be set for the
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// `#[cfg(version(...))]` attribute.
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cargo.env("CFG_RELEASE", builder.rust_release());
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cargo.env("CFG_RELEASE_CHANNEL", &builder.config.channel);
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cargo.env("CFG_VERSION", builder.rust_version());
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cargo.env("CFG_RELEASE_NUM", &builder.version);
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let info = GitInfo::new(builder.config.ignore_git, &dir);
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if let Some(sha) = info.sha() {
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cargo.env("CFG_COMMIT_HASH", sha);
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}
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if let Some(sha_short) = info.sha_short() {
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cargo.env("CFG_SHORT_COMMIT_HASH", sha_short);
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}
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if let Some(date) = info.commit_date() {
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cargo.env("CFG_COMMIT_DATE", date);
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}
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if !features.is_empty() {
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cargo.arg("--features").arg(&features.join(", "));
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}
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cargo
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}
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macro_rules! bootstrap_tool {
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($(
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$name:ident, $path:expr, $tool_name:expr
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$(,is_external_tool = $external:expr)*
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$(,is_unstable_tool = $unstable:expr)*
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$(,features = $features:expr)*
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;
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)+) => {
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#[derive(Copy, PartialEq, Eq, Clone)]
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pub enum Tool {
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$(
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$name,
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)+
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}
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impl<'a> Builder<'a> {
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pub fn tool_exe(&self, tool: Tool) -> PathBuf {
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match tool {
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$(Tool::$name =>
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self.ensure($name {
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compiler: self.compiler(0, self.config.build),
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target: self.config.build,
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}),
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)+
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}
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}
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}
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$(
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#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
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pub struct $name {
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pub compiler: Compiler,
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pub target: TargetSelection,
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}
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impl Step for $name {
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type Output = PathBuf;
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fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
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run.path($path)
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}
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fn make_run(run: RunConfig<'_>) {
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run.builder.ensure($name {
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// snapshot compiler
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compiler: run.builder.compiler(0, run.builder.config.build),
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target: run.target,
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});
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}
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fn run(self, builder: &Builder<'_>) -> PathBuf {
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builder.ensure(ToolBuild {
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compiler: self.compiler,
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target: self.target,
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tool: $tool_name,
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mode: if false $(|| $unstable)* {
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// use in-tree libraries for unstable features
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Mode::ToolStd
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} else {
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Mode::ToolBootstrap
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},
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path: $path,
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is_optional_tool: false,
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source_type: if false $(|| $external)* {
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SourceType::Submodule
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} else {
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SourceType::InTree
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},
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extra_features: {
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// FIXME(#60643): avoid this lint by using `_`
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let mut _tmp = Vec::new();
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$(_tmp.extend($features);)*
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_tmp
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},
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}).expect("expected to build -- essential tool")
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}
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}
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)+
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}
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}
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bootstrap_tool!(
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Rustbook, "src/tools/rustbook", "rustbook";
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UnstableBookGen, "src/tools/unstable-book-gen", "unstable-book-gen";
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Tidy, "src/tools/tidy", "tidy";
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Linkchecker, "src/tools/linkchecker", "linkchecker";
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CargoTest, "src/tools/cargotest", "cargotest";
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Compiletest, "src/tools/compiletest", "compiletest", is_unstable_tool = true;
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BuildManifest, "src/tools/build-manifest", "build-manifest";
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RemoteTestClient, "src/tools/remote-test-client", "remote-test-client";
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RustDemangler, "src/tools/rust-demangler", "rust-demangler";
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RustInstaller, "src/tools/rust-installer", "fabricate", is_external_tool = true;
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RustdocTheme, "src/tools/rustdoc-themes", "rustdoc-themes";
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ExpandYamlAnchors, "src/tools/expand-yaml-anchors", "expand-yaml-anchors";
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LintDocs, "src/tools/lint-docs", "lint-docs";
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JsonDocCk, "src/tools/jsondocck", "jsondocck";
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);
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#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, Ord, PartialOrd)]
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pub struct ErrorIndex {
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pub compiler: Compiler,
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}
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impl ErrorIndex {
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pub fn command(builder: &Builder<'_>) -> Command {
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// This uses stage-1 to match the behavior of building rustdoc.
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// Error-index-generator links with the rustdoc library, so we want to
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// use the same librustdoc to avoid building rustdoc twice (and to
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// avoid building the compiler an extra time). This uses
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// saturating_sub to deal with building with stage 0. (Using stage 0
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// isn't recommended, since it will fail if any new error index tests
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// use new syntax, but it should work otherwise.)
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let compiler = builder.compiler(builder.top_stage.saturating_sub(1), builder.config.build);
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let mut cmd = Command::new(builder.ensure(ErrorIndex { compiler }));
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add_dylib_path(
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vec![PathBuf::from(&builder.sysroot_libdir(compiler, compiler.host))],
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&mut cmd,
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);
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cmd
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}
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}
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impl Step for ErrorIndex {
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type Output = PathBuf;
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fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
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run.path("src/tools/error_index_generator")
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}
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fn make_run(run: RunConfig<'_>) {
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// Compile the error-index in the same stage as rustdoc to avoid
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// recompiling rustdoc twice if we can.
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//
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// NOTE: This `make_run` isn't used in normal situations, only if you
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// manually build the tool with `x.py build
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// src/tools/error-index-generator` which almost nobody does.
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// Normally, `x.py test` or `x.py doc` will use the
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// `ErrorIndex::command` function instead.
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let compiler =
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run.builder.compiler(run.builder.top_stage.saturating_sub(1), run.builder.config.build);
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run.builder.ensure(ErrorIndex { compiler });
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}
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fn run(self, builder: &Builder<'_>) -> PathBuf {
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builder
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.ensure(ToolBuild {
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compiler: self.compiler,
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target: self.compiler.host,
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tool: "error_index_generator",
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mode: Mode::ToolRustc,
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path: "src/tools/error_index_generator",
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is_optional_tool: false,
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source_type: SourceType::InTree,
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extra_features: Vec::new(),
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})
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.expect("expected to build -- essential tool")
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}
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}
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|
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#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
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pub struct RemoteTestServer {
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pub compiler: Compiler,
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pub target: TargetSelection,
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}
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impl Step for RemoteTestServer {
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type Output = PathBuf;
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fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
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run.path("src/tools/remote-test-server")
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}
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fn make_run(run: RunConfig<'_>) {
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run.builder.ensure(RemoteTestServer {
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compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build),
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target: run.target,
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});
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}
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fn run(self, builder: &Builder<'_>) -> PathBuf {
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builder
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.ensure(ToolBuild {
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compiler: self.compiler,
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target: self.target,
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tool: "remote-test-server",
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mode: Mode::ToolStd,
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path: "src/tools/remote-test-server",
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is_optional_tool: false,
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source_type: SourceType::InTree,
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extra_features: Vec::new(),
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})
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.expect("expected to build -- essential tool")
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}
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}
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|
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#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, Ord, PartialOrd)]
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pub struct Rustdoc {
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/// This should only ever be 0 or 2.
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/// We sometimes want to reference the "bootstrap" rustdoc, which is why this option is here.
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pub compiler: Compiler,
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}
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|
|
impl Step for Rustdoc {
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type Output = PathBuf;
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const DEFAULT: bool = true;
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const ONLY_HOSTS: bool = true;
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fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
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run.path("src/tools/rustdoc").path("src/librustdoc")
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}
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fn make_run(run: RunConfig<'_>) {
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run.builder.ensure(Rustdoc {
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// Note: this is somewhat unique in that we actually want a *target*
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// compiler here, because rustdoc *is* a compiler. We won't be using
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// this as the compiler to build with, but rather this is "what
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// compiler are we producing"?
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compiler: run.builder.compiler(run.builder.top_stage, run.target),
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});
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}
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|
|
fn run(self, builder: &Builder<'_>) -> PathBuf {
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|
let target_compiler = self.compiler;
|
|
if target_compiler.stage == 0 {
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if !target_compiler.is_snapshot(builder) {
|
|
panic!("rustdoc in stage 0 must be snapshot rustdoc");
|
|
}
|
|
return builder.initial_rustc.with_file_name(exe("rustdoc", target_compiler.host));
|
|
}
|
|
let target = target_compiler.host;
|
|
// Similar to `compile::Assemble`, build with the previous stage's compiler. Otherwise
|
|
// we'd have stageN/bin/rustc and stageN/bin/rustdoc be effectively different stage
|
|
// compilers, which isn't what we want. Rustdoc should be linked in the same way as the
|
|
// rustc compiler it's paired with, so it must be built with the previous stage compiler.
|
|
let build_compiler = builder.compiler(target_compiler.stage - 1, builder.config.build);
|
|
|
|
// The presence of `target_compiler` ensures that the necessary libraries (codegen backends,
|
|
// compiler libraries, ...) are built. Rustdoc does not require the presence of any
|
|
// libraries within sysroot_libdir (i.e., rustlib), though doctests may want it (since
|
|
// they'll be linked to those libraries). As such, don't explicitly `ensure` any additional
|
|
// libraries here. The intuition here is that If we've built a compiler, we should be able
|
|
// to build rustdoc.
|
|
|
|
let cargo = prepare_tool_cargo(
|
|
builder,
|
|
build_compiler,
|
|
Mode::ToolRustc,
|
|
target,
|
|
"build",
|
|
"src/tools/rustdoc",
|
|
SourceType::InTree,
|
|
&[],
|
|
);
|
|
|
|
builder.info(&format!(
|
|
"Building rustdoc for stage{} ({})",
|
|
target_compiler.stage, target_compiler.host
|
|
));
|
|
builder.run(&mut cargo.into());
|
|
|
|
// Cargo adds a number of paths to the dylib search path on windows, which results in
|
|
// the wrong rustdoc being executed. To avoid the conflicting rustdocs, we name the "tool"
|
|
// rustdoc a different name.
|
|
let tool_rustdoc = builder
|
|
.cargo_out(build_compiler, Mode::ToolRustc, target)
|
|
.join(exe("rustdoc_tool_binary", target_compiler.host));
|
|
|
|
// don't create a stage0-sysroot/bin directory.
|
|
if target_compiler.stage > 0 {
|
|
let sysroot = builder.sysroot(target_compiler);
|
|
let bindir = sysroot.join("bin");
|
|
t!(fs::create_dir_all(&bindir));
|
|
let bin_rustdoc = bindir.join(exe("rustdoc", target_compiler.host));
|
|
let _ = fs::remove_file(&bin_rustdoc);
|
|
builder.copy(&tool_rustdoc, &bin_rustdoc);
|
|
bin_rustdoc
|
|
} else {
|
|
tool_rustdoc
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
|
|
pub struct Cargo {
|
|
pub compiler: Compiler,
|
|
pub target: TargetSelection,
|
|
}
|
|
|
|
impl Step for Cargo {
|
|
type Output = PathBuf;
|
|
const DEFAULT: bool = true;
|
|
const ONLY_HOSTS: bool = true;
|
|
|
|
fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
|
|
let builder = run.builder;
|
|
run.path("src/tools/cargo").default_condition(builder.config.extended)
|
|
}
|
|
|
|
fn make_run(run: RunConfig<'_>) {
|
|
run.builder.ensure(Cargo {
|
|
compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build),
|
|
target: run.target,
|
|
});
|
|
}
|
|
|
|
fn run(self, builder: &Builder<'_>) -> PathBuf {
|
|
let cargo_bin_path = builder
|
|
.ensure(ToolBuild {
|
|
compiler: self.compiler,
|
|
target: self.target,
|
|
tool: "cargo",
|
|
mode: Mode::ToolRustc,
|
|
path: "src/tools/cargo",
|
|
is_optional_tool: false,
|
|
source_type: SourceType::Submodule,
|
|
extra_features: Vec::new(),
|
|
})
|
|
.expect("expected to build -- essential tool");
|
|
|
|
let build_cred = |name, path| {
|
|
// These credential helpers are currently experimental.
|
|
// Any build failures will be ignored.
|
|
let _ = builder.ensure(ToolBuild {
|
|
compiler: self.compiler,
|
|
target: self.target,
|
|
tool: name,
|
|
mode: Mode::ToolRustc,
|
|
path,
|
|
is_optional_tool: true,
|
|
source_type: SourceType::Submodule,
|
|
extra_features: Vec::new(),
|
|
});
|
|
};
|
|
|
|
if self.target.contains("windows") {
|
|
build_cred(
|
|
"cargo-credential-wincred",
|
|
"src/tools/cargo/crates/credential/cargo-credential-wincred",
|
|
);
|
|
}
|
|
if self.target.contains("apple-darwin") {
|
|
build_cred(
|
|
"cargo-credential-macos-keychain",
|
|
"src/tools/cargo/crates/credential/cargo-credential-macos-keychain",
|
|
);
|
|
}
|
|
build_cred(
|
|
"cargo-credential-1password",
|
|
"src/tools/cargo/crates/credential/cargo-credential-1password",
|
|
);
|
|
cargo_bin_path
|
|
}
|
|
}
|
|
|
|
macro_rules! tool_extended {
|
|
(($sel:ident, $builder:ident),
|
|
$($name:ident,
|
|
$toolstate:ident,
|
|
$path:expr,
|
|
$tool_name:expr,
|
|
stable = $stable:expr,
|
|
$(in_tree = $in_tree:expr,)*
|
|
$extra_deps:block;)+) => {
|
|
$(
|
|
#[derive(Debug, Clone, Hash, PartialEq, Eq)]
|
|
pub struct $name {
|
|
pub compiler: Compiler,
|
|
pub target: TargetSelection,
|
|
pub extra_features: Vec<String>,
|
|
}
|
|
|
|
impl Step for $name {
|
|
type Output = Option<PathBuf>;
|
|
const DEFAULT: bool = true; // Overwritten below
|
|
const ONLY_HOSTS: bool = true;
|
|
|
|
fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
|
|
let builder = run.builder;
|
|
run.path($path).default_condition(
|
|
builder.config.extended
|
|
&& builder.config.tools.as_ref().map_or(
|
|
// By default, on nightly/dev enable all tools, else only
|
|
// build stable tools.
|
|
$stable || builder.build.unstable_features(),
|
|
// If `tools` is set, search list for this tool.
|
|
|tools| {
|
|
tools.iter().any(|tool| match tool.as_ref() {
|
|
"clippy" => $tool_name == "clippy-driver",
|
|
x => $tool_name == x,
|
|
})
|
|
}),
|
|
)
|
|
}
|
|
|
|
fn make_run(run: RunConfig<'_>) {
|
|
run.builder.ensure($name {
|
|
compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build),
|
|
target: run.target,
|
|
extra_features: Vec::new(),
|
|
});
|
|
}
|
|
|
|
#[allow(unused_mut)]
|
|
fn run(mut $sel, $builder: &Builder<'_>) -> Option<PathBuf> {
|
|
$extra_deps
|
|
$builder.ensure(ToolBuild {
|
|
compiler: $sel.compiler,
|
|
target: $sel.target,
|
|
tool: $tool_name,
|
|
mode: Mode::ToolRustc,
|
|
path: $path,
|
|
extra_features: $sel.extra_features,
|
|
is_optional_tool: true,
|
|
source_type: if false $(|| $in_tree)* {
|
|
SourceType::InTree
|
|
} else {
|
|
SourceType::Submodule
|
|
},
|
|
})
|
|
}
|
|
}
|
|
)+
|
|
}
|
|
}
|
|
|
|
// Note: tools need to be also added to `Builder::get_step_descriptions` in `builder.rs`
|
|
// to make `./x.py build <tool>` work.
|
|
tool_extended!((self, builder),
|
|
Cargofmt, rustfmt, "src/tools/rustfmt", "cargo-fmt", stable=true, {};
|
|
CargoClippy, clippy, "src/tools/clippy", "cargo-clippy", stable=true, in_tree=true, {};
|
|
Clippy, clippy, "src/tools/clippy", "clippy-driver", stable=true, in_tree=true, {};
|
|
Miri, miri, "src/tools/miri", "miri", stable=false, {};
|
|
CargoMiri, miri, "src/tools/miri/cargo-miri", "cargo-miri", stable=false, {};
|
|
Rls, rls, "src/tools/rls", "rls", stable=true, {
|
|
builder.ensure(Clippy {
|
|
compiler: self.compiler,
|
|
target: self.target,
|
|
extra_features: Vec::new(),
|
|
});
|
|
self.extra_features.push("clippy".to_owned());
|
|
};
|
|
Rustfmt, rustfmt, "src/tools/rustfmt", "rustfmt", stable=true, {};
|
|
RustAnalyzer, rust_analyzer, "src/tools/rust-analyzer/crates/rust-analyzer", "rust-analyzer", stable=false, {};
|
|
);
|
|
|
|
impl<'a> Builder<'a> {
|
|
/// Gets a `Command` which is ready to run `tool` in `stage` built for
|
|
/// `host`.
|
|
pub fn tool_cmd(&self, tool: Tool) -> Command {
|
|
let mut cmd = Command::new(self.tool_exe(tool));
|
|
let compiler = self.compiler(0, self.config.build);
|
|
let host = &compiler.host;
|
|
// Prepares the `cmd` provided to be able to run the `compiler` provided.
|
|
//
|
|
// Notably this munges the dynamic library lookup path to point to the
|
|
// right location to run `compiler`.
|
|
let mut lib_paths: Vec<PathBuf> = vec![
|
|
self.build.rustc_snapshot_libdir(),
|
|
self.cargo_out(compiler, Mode::ToolBootstrap, *host).join("deps"),
|
|
];
|
|
|
|
// On MSVC a tool may invoke a C compiler (e.g., compiletest in run-make
|
|
// mode) and that C compiler may need some extra PATH modification. Do
|
|
// so here.
|
|
if compiler.host.contains("msvc") {
|
|
let curpaths = env::var_os("PATH").unwrap_or_default();
|
|
let curpaths = env::split_paths(&curpaths).collect::<Vec<_>>();
|
|
for &(ref k, ref v) in self.cc[&compiler.host].env() {
|
|
if k != "PATH" {
|
|
continue;
|
|
}
|
|
for path in env::split_paths(v) {
|
|
if !curpaths.contains(&path) {
|
|
lib_paths.push(path);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
add_dylib_path(lib_paths, &mut cmd);
|
|
|
|
// Provide a RUSTC for this command to use.
|
|
cmd.env("RUSTC", &self.initial_rustc);
|
|
|
|
cmd
|
|
}
|
|
}
|