81b525e2a4
This reverts the temporary fix implemented by https://github.com/rust-lang/rust/pull/95993 since a permanent fix has been implemented by https://github.com/rust-lang/cargo/pull/10594
81 lines
2.7 KiB
Rust
81 lines
2.7 KiB
Rust
//! Shim which is passed to Cargo as "rustdoc" when running the bootstrap.
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//!
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//! See comments in `src/bootstrap/rustc.rs` for more information.
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use std::env;
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use std::ffi::OsString;
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use std::path::PathBuf;
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use std::process::Command;
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include!("../dylib_util.rs");
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fn main() {
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let args = env::args_os().skip(1).collect::<Vec<_>>();
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let rustdoc = env::var_os("RUSTDOC_REAL").expect("RUSTDOC_REAL was not set");
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let libdir = env::var_os("RUSTDOC_LIBDIR").expect("RUSTDOC_LIBDIR was not set");
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let sysroot = env::var_os("RUSTC_SYSROOT").expect("RUSTC_SYSROOT was not set");
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// Detect whether or not we're a build script depending on whether --target
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// is passed (a bit janky...)
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let target = args.windows(2).find(|w| &*w[0] == "--target").and_then(|w| w[1].to_str());
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use std::str::FromStr;
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let verbose = match env::var("RUSTC_VERBOSE") {
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Ok(s) => usize::from_str(&s).expect("RUSTC_VERBOSE should be an integer"),
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Err(_) => 0,
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};
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let mut dylib_path = dylib_path();
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dylib_path.insert(0, PathBuf::from(libdir.clone()));
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let mut cmd = Command::new(rustdoc);
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if target.is_some() {
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// The stage0 compiler has a special sysroot distinct from what we
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// actually downloaded, so we just always pass the `--sysroot` option,
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// unless one is already set.
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if !args.iter().any(|arg| arg == "--sysroot") {
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cmd.arg("--sysroot").arg(&sysroot);
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}
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}
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cmd.args(&args);
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cmd.env(dylib_path_var(), env::join_paths(&dylib_path).unwrap());
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// Force all crates compiled by this compiler to (a) be unstable and (b)
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// allow the `rustc_private` feature to link to other unstable crates
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// also in the sysroot.
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if env::var_os("RUSTC_FORCE_UNSTABLE").is_some() {
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cmd.arg("-Z").arg("force-unstable-if-unmarked");
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}
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if let Some(linker) = env::var_os("RUSTDOC_LINKER") {
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let mut arg = OsString::from("-Clinker=");
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arg.push(&linker);
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cmd.arg(arg);
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}
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if env::var_os("RUSTDOC_FUSE_LD_LLD").is_some() {
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cmd.arg("-Clink-arg=-fuse-ld=lld");
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if cfg!(windows) {
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cmd.arg("-Clink-arg=-Wl,/threads:1");
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} else {
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cmd.arg("-Clink-arg=-Wl,--threads=1");
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}
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}
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if verbose > 1 {
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eprintln!(
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"rustdoc command: {:?}={:?} {:?}",
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dylib_path_var(),
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env::join_paths(&dylib_path).unwrap(),
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cmd,
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);
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eprintln!("sysroot: {:?}", sysroot);
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eprintln!("libdir: {:?}", libdir);
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}
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std::process::exit(match cmd.status() {
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Ok(s) => s.code().unwrap_or(1),
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Err(e) => panic!("\n\nfailed to run {:?}: {}\n\n", cmd, e),
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})
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}
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