mirror of https://github.com/rust-lang/rust
54 lines
1.6 KiB
Rust
54 lines
1.6 KiB
Rust
use std::env;
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use std::path::PathBuf;
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use crate::path::{Dirs, RelPath};
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use crate::rustc_info::get_file_name;
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use crate::shared_utils::{rustflags_from_env, rustflags_to_cmd_env};
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use crate::utils::{CargoProject, Compiler, LogGroup};
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pub(crate) static CG_CLIF: CargoProject = CargoProject::new(&RelPath::SOURCE, "cg_clif");
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pub(crate) fn build_backend(
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dirs: &Dirs,
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channel: &str,
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bootstrap_host_compiler: &Compiler,
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use_unstable_features: bool,
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) -> PathBuf {
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let _group = LogGroup::guard("Build backend");
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let mut cmd = CG_CLIF.build(&bootstrap_host_compiler, dirs);
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let mut rustflags = rustflags_from_env("RUSTFLAGS");
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rustflags.push("-Zallow-features=rustc_private".to_owned());
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if env::var("CG_CLIF_EXPENSIVE_CHECKS").is_ok() {
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// Enabling debug assertions implicitly enables the clif ir verifier
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cmd.env("CARGO_PROFILE_RELEASE_DEBUG_ASSERTIONS", "true");
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cmd.env("CARGO_PROFILE_RELEASE_OVERFLOW_CHECKS", "true");
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}
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if use_unstable_features {
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cmd.arg("--features").arg("unstable-features");
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}
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match channel {
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"debug" => {}
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"release" => {
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cmd.arg("--release");
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}
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_ => unreachable!(),
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}
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rustflags_to_cmd_env(&mut cmd, "RUSTFLAGS", &rustflags);
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eprintln!("[BUILD] rustc_codegen_cranelift");
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crate::utils::spawn_and_wait(cmd);
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CG_CLIF
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.target_dir(dirs)
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.join(&bootstrap_host_compiler.triple)
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.join(channel)
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.join(get_file_name(&bootstrap_host_compiler.rustc, "rustc_codegen_cranelift", "dylib"))
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}
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