1 files changed, 58 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_cranelift/scripts/rustdoc-clif.rs b/compiler/rustc_codegen_cranelift/scripts/rustdoc-clif.rs
new file mode 100644
index 00000000000..1cad312bb79
--- /dev/null
+++ b/compiler/rustc_codegen_cranelift/scripts/rustdoc-clif.rs
@@ -0,0 +1,58 @@
+use std::env;
+use std::ffi::OsString;
+#[cfg(unix)]
+use std::os::unix::process::CommandExt;
+use std::process::Command;
+
+fn main() {
+    let current_exe = env::current_exe().unwrap();
+    let mut sysroot = current_exe.parent().unwrap();
+    if sysroot.file_name().unwrap().to_str().unwrap() == "bin" {
+        sysroot = sysroot.parent().unwrap();
+    }
+
+    let cg_clif_dylib_path = sysroot.join(if cfg!(windows) { "bin" } else { "lib" }).join(
+        env::consts::DLL_PREFIX.to_string() + "rustc_codegen_cranelift" + env::consts::DLL_SUFFIX,
+    );
+
+    let passed_args = std::env::args_os().skip(1).collect::<Vec<_>>();
+    let mut args = vec![];
+    args.push(OsString::from("-Cpanic=abort"));
+    args.push(OsString::from("-Zpanic-abort-tests"));
+    if let Some(name) = option_env!("BUILTIN_BACKEND") {
+        args.push(OsString::from(format!("-Zcodegen-backend={name}")))
+    } else {
+        let mut codegen_backend_arg = OsString::from("-Zcodegen-backend=");
+        codegen_backend_arg.push(cg_clif_dylib_path);
+        args.push(codegen_backend_arg);
+    }
+    if !passed_args
+        .iter()
+        .any(|arg| arg == "--sysroot" || arg.to_str().is_some_and(|s| s.starts_with("--sysroot=")))
+    {
+        args.push(OsString::from("--sysroot"));
+        args.push(OsString::from(sysroot.to_str().unwrap()));
+    }
+    if passed_args.is_empty() {
+        // Don't pass any arguments when the user didn't pass any arguments
+        // either to ensure the help message is shown.
+        args.clear();
+    }
+    args.extend(passed_args);
+
+    let rustdoc = if let Some(rustdoc) = option_env!("RUSTDOC") {
+        rustdoc
+    } else {
+        // Ensure that the right toolchain is used
+        env::set_var("RUSTUP_TOOLCHAIN", option_env!("TOOLCHAIN_NAME").expect("TOOLCHAIN_NAME"));
+        "rustdoc"
+    };
+
+    #[cfg(unix)]
+    panic!("Failed to spawn rustdoc: {}", Command::new(rustdoc).args(args).exec());
+
+    #[cfg(not(unix))]
+    std::process::exit(
+        Command::new(rustdoc).args(args).spawn().unwrap().wait().unwrap().code().unwrap_or(1),
+    );
+}