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