#![feature(slice_concat_ext)] extern crate compiletest_rs as compiletest; use std::slice::SliceConcatExt; use std::path::{PathBuf, Path}; use std::io::Write; macro_rules! eprintln { ($($arg:tt)*) => { let stderr = std::io::stderr(); writeln!(stderr.lock(), $($arg)*).unwrap(); } } const MIRI_PATH: &'static str = concat!("target/", env!("PROFILE"), "/miri"); fn compile_fail(sysroot: &Path, path: &str, target: &str, host: &str, fullmir: bool) { eprintln!("## Running compile-fail tests in {} against miri for target {}", path, target); let mut config = compiletest::default_config(); config.mode = "compile-fail".parse().expect("Invalid mode"); config.rustc_path = MIRI_PATH.into(); let mut flags = Vec::new(); if fullmir { if host != target { // skip fullmir on nonhost return; } let sysroot = Path::new(&std::env::var("HOME").unwrap()).join(".xargo").join("HOST"); config.target_rustcflags = Some(format!("--sysroot {}", sysroot.to_str().unwrap())); config.src_base = PathBuf::from(path.to_string()); } else { config.target_rustcflags = Some(format!("--sysroot {}", sysroot.to_str().unwrap())); config.src_base = PathBuf::from(path.to_string()); } flags.push("-Zmir-emit-validate=1".to_owned()); config.target_rustcflags = Some(flags.join(" ")); config.target = target.to_owned(); compiletest::run_tests(&config); } fn run_pass(path: &str) { eprintln!("## Running run-pass tests in {} against rustc", path); let mut config = compiletest::default_config(); config.mode = "run-pass".parse().expect("Invalid mode"); config.src_base = PathBuf::from(path); config.target_rustcflags = Some("-Dwarnings".to_string()); config.host_rustcflags = Some("-Dwarnings".to_string()); compiletest::run_tests(&config); } fn miri_pass(path: &str, target: &str, host: &str, fullmir: bool, opt: bool) { let opt_str = if opt { " with optimizations" } else { "" }; eprintln!("## Running run-pass tests in {} against miri for target {}{}", path, target, opt_str); let mut config = compiletest::default_config(); config.mode = "mir-opt".parse().expect("Invalid mode"); config.src_base = PathBuf::from(path); config.target = target.to_owned(); config.host = host.to_owned(); config.rustc_path = MIRI_PATH.into(); let mut flags = Vec::new(); if fullmir { if host != target { // skip fullmir on nonhost return; } let sysroot = Path::new(&std::env::var("HOME").unwrap()).join(".xargo").join("HOST"); flags.push(format!("--sysroot {}", sysroot.to_str().unwrap())); } if opt { flags.push("-Zmir-opt-level=3".to_owned()); } else { flags.push("-Zmir-opt-level=0".to_owned()); // For now, only validate without optimizations. Inlining breaks validation. flags.push("-Zmir-emit-validate=1".to_owned()); } config.target_rustcflags = Some(flags.join(" ")); // don't actually execute the final binary, it might be for other targets and we only care // about running miri, not the binary. config.runtool = Some("echo \"\" || ".to_owned()); if target == host { std::env::set_var("MIRI_HOST_TARGET", "yes"); } compiletest::run_tests(&config); std::env::set_var("MIRI_HOST_TARGET", ""); } fn is_target_dir>(path: P) -> bool { let mut path = path.into(); path.push("lib"); path.metadata().map(|m| m.is_dir()).unwrap_or(false) } fn for_all_targets(sysroot: &Path, mut f: F) { let target_dir = sysroot.join("lib").join("rustlib"); for entry in std::fs::read_dir(target_dir).expect("invalid sysroot") { let entry = entry.unwrap(); if !is_target_dir(entry.path()) { continue; } let target = entry.file_name().into_string().unwrap(); f(target); } } fn get_sysroot() -> PathBuf { let sysroot = std::env::var("MIRI_SYSROOT").unwrap_or_else(|_| { let sysroot = std::process::Command::new("rustc") .arg("--print") .arg("sysroot") .output() .expect("rustc not found") .stdout; String::from_utf8(sysroot).expect("sysroot is not utf8") }); PathBuf::from(sysroot.trim()) } fn get_host() -> String { let host = std::process::Command::new("rustc") .arg("-vV") .output() .expect("rustc not found for -vV") .stdout; let host = std::str::from_utf8(&host).expect("sysroot is not utf8"); let host = host.split("\nhost: ").nth(1).expect("no host: part in rustc -vV"); let host = host.split('\n').next().expect("no \n after host"); String::from(host) } #[test] fn run_pass_miri() { let sysroot = get_sysroot(); let host = get_host(); for &opt in [false, true].iter() { for_all_targets(&sysroot, |target| { miri_pass("tests/run-pass", &target, &host, false, opt); }); miri_pass("tests/run-pass-fullmir", &host, &host, true, opt); } } #[test] fn run_pass_rustc() { run_pass("tests/run-pass"); run_pass("tests/run-pass-fullmir"); } #[test] fn compile_fail_miri() { let sysroot = get_sysroot(); let host = get_host(); for_all_targets(&sysroot, |target| { compile_fail(&sysroot, "tests/compile-fail", &target, &host, false); }); compile_fail(&sysroot, "tests/compile-fail-fullmir", &host, &host, true); }