| use std::ffi::OsStr; |
| use std::env; |
| use std::path::PathBuf; |
| use crate::common::Config; |
| |
| /// Conversion table from triple OS name to Rust SYSNAME |
| const OS_TABLE: &'static [(&'static str, &'static str)] = &[ |
| ("android", "android"), |
| ("androideabi", "android"), |
| ("bitrig", "bitrig"), |
| ("cloudabi", "cloudabi"), |
| ("cuda", "cuda"), |
| ("darwin", "macos"), |
| ("dragonfly", "dragonfly"), |
| ("emscripten", "emscripten"), |
| ("freebsd", "freebsd"), |
| ("fuchsia", "fuchsia"), |
| ("haiku", "haiku"), |
| ("hermit", "hermit"), |
| ("ios", "ios"), |
| ("l4re", "l4re"), |
| ("linux", "linux"), |
| ("mingw32", "windows"), |
| ("none", "none"), |
| ("netbsd", "netbsd"), |
| ("openbsd", "openbsd"), |
| ("redox", "redox"), |
| ("sgx", "sgx"), |
| ("solaris", "solaris"), |
| ("win32", "windows"), |
| ("windows", "windows"), |
| ]; |
| |
| const ARCH_TABLE: &'static [(&'static str, &'static str)] = &[ |
| ("aarch64", "aarch64"), |
| ("amd64", "x86_64"), |
| ("arm", "arm"), |
| ("arm64", "aarch64"), |
| ("armv4t", "arm"), |
| ("armv5te", "arm"), |
| ("armv7", "arm"), |
| ("armv7s", "arm"), |
| ("asmjs", "asmjs"), |
| ("hexagon", "hexagon"), |
| ("i386", "x86"), |
| ("i586", "x86"), |
| ("i686", "x86"), |
| ("mips", "mips"), |
| ("mips64", "mips64"), |
| ("mips64el", "mips64"), |
| ("mipsisa32r6", "mips"), |
| ("mipsisa32r6el", "mips"), |
| ("mipsisa64r6", "mips64"), |
| ("mipsisa64r6el", "mips64"), |
| ("mipsel", "mips"), |
| ("mipsisa32r6", "mips"), |
| ("mipsisa32r6el", "mips"), |
| ("mipsisa64r6", "mips64"), |
| ("mipsisa64r6el", "mips64"), |
| ("msp430", "msp430"), |
| ("nvptx64", "nvptx64"), |
| ("powerpc", "powerpc"), |
| ("powerpc64", "powerpc64"), |
| ("powerpc64le", "powerpc64"), |
| ("s390x", "s390x"), |
| ("sparc", "sparc"), |
| ("sparc64", "sparc64"), |
| ("sparcv9", "sparc64"), |
| ("thumbv6m", "thumb"), |
| ("thumbv7em", "thumb"), |
| ("thumbv7m", "thumb"), |
| ("wasm32", "wasm32"), |
| ("x86_64", "x86_64"), |
| ("xcore", "xcore"), |
| ]; |
| |
| pub fn matches_os(triple: &str, name: &str) -> bool { |
| // For the wasm32 bare target we ignore anything also ignored on emscripten |
| // and then we also recognize `wasm32-bare` as the os for the target |
| if triple == "wasm32-unknown-unknown" { |
| return name == "emscripten" || name == "wasm32-bare"; |
| } |
| let triple: Vec<_> = triple.split('-').collect(); |
| for &(triple_os, os) in OS_TABLE { |
| if triple.contains(&triple_os) { |
| return os == name; |
| } |
| } |
| panic!("Cannot determine OS from triple"); |
| } |
| |
| /// Determine the architecture from `triple` |
| pub fn get_arch(triple: &str) -> &'static str { |
| let triple: Vec<_> = triple.split('-').collect(); |
| for &(triple_arch, arch) in ARCH_TABLE { |
| if triple.contains(&triple_arch) { |
| return arch; |
| } |
| } |
| panic!("Cannot determine Architecture from triple"); |
| } |
| |
| pub fn get_env(triple: &str) -> Option<&str> { |
| triple.split('-').nth(3) |
| } |
| |
| pub fn get_pointer_width(triple: &str) -> &'static str { |
| if (triple.contains("64") && !triple.ends_with("gnux32")) || triple.starts_with("s390x") { |
| "64bit" |
| } else { |
| "32bit" |
| } |
| } |
| |
| pub fn make_new_path(path: &str) -> String { |
| assert!(cfg!(windows)); |
| // Windows just uses PATH as the library search path, so we have to |
| // maintain the current value while adding our own |
| match env::var(lib_path_env_var()) { |
| Ok(curr) => format!("{}{}{}", path, path_div(), curr), |
| Err(..) => path.to_owned(), |
| } |
| } |
| |
| pub fn lib_path_env_var() -> &'static str { |
| "PATH" |
| } |
| fn path_div() -> &'static str { |
| ";" |
| } |
| |
| pub fn logv(config: &Config, s: String) { |
| debug!("{}", s); |
| if config.verbose { |
| println!("{}", s); |
| } |
| } |
| |
| pub trait PathBufExt { |
| /// Append an extension to the path, even if it already has one. |
| fn with_extra_extension<S: AsRef<OsStr>>(&self, extension: S) -> PathBuf; |
| } |
| |
| impl PathBufExt for PathBuf { |
| fn with_extra_extension<S: AsRef<OsStr>>(&self, extension: S) -> PathBuf { |
| if extension.as_ref().len() == 0 { |
| self.clone() |
| } else { |
| let mut fname = self.file_name().unwrap().to_os_string(); |
| if !extension.as_ref().to_str().unwrap().starts_with(".") { |
| fname.push("."); |
| } |
| fname.push(extension); |
| self.with_file_name(fname) |
| } |
| } |
| } |
| |
| #[test] |
| #[should_panic(expected = "Cannot determine Architecture from triple")] |
| fn test_get_arch_failure() { |
| get_arch("abc"); |
| } |
| |
| #[test] |
| fn test_get_arch() { |
| assert_eq!("x86_64", get_arch("x86_64-unknown-linux-gnu")); |
| assert_eq!("x86_64", get_arch("amd64")); |
| assert_eq!("nvptx64", get_arch("nvptx64-nvidia-cuda")); |
| } |
| |
| #[test] |
| #[should_panic(expected = "Cannot determine OS from triple")] |
| fn test_matches_os_failure() { |
| matches_os("abc", "abc"); |
| } |
| |
| #[test] |
| fn test_matches_os() { |
| assert!(matches_os("x86_64-unknown-linux-gnu", "linux")); |
| assert!(matches_os("wasm32-unknown-unknown", "emscripten")); |
| assert!(matches_os("wasm32-unknown-unknown", "wasm32-bare")); |
| assert!(!matches_os("wasm32-unknown-unknown", "windows")); |
| assert!(matches_os("thumbv6m0-none-eabi", "none")); |
| assert!(matches_os("riscv32imc-unknown-none-elf", "none")); |
| assert!(matches_os("nvptx64-nvidia-cuda", "cuda")); |
| assert!(matches_os("x86_64-fortanix-unknown-sgx", "sgx")); |
| } |