diff options
Diffstat (limited to 'third_party/rust/gcc/src')
| -rw-r--r-- | third_party/rust/gcc/src/bin/gcc-shim.rs | 23 | ||||
| -rw-r--r-- | third_party/rust/gcc/src/lib.rs | 898 | ||||
| -rw-r--r-- | third_party/rust/gcc/src/registry.rs | 169 | ||||
| -rw-r--r-- | third_party/rust/gcc/src/windows_registry.rs | 423 |
4 files changed, 0 insertions, 1513 deletions
diff --git a/third_party/rust/gcc/src/bin/gcc-shim.rs b/third_party/rust/gcc/src/bin/gcc-shim.rs deleted file mode 100644 index 43fd811d3..000000000 --- a/third_party/rust/gcc/src/bin/gcc-shim.rs +++ /dev/null @@ -1,23 +0,0 @@ -#![cfg_attr(test, allow(dead_code))] - -use std::env; -use std::fs::File; -use std::io::prelude::*; -use std::path::PathBuf; - -fn main() { - let out_dir = PathBuf::from(env::var_os("GCCTEST_OUT_DIR").unwrap()); - for i in 0.. { - let candidate = out_dir.join(format!("out{}", i)); - if candidate.exists() { - continue - } - let mut f = File::create(candidate).unwrap(); - for arg in env::args().skip(1) { - writeln!(f, "{}", arg).unwrap(); - } - - File::create(out_dir.join("libfoo.a")).unwrap(); - break - } -} diff --git a/third_party/rust/gcc/src/lib.rs b/third_party/rust/gcc/src/lib.rs deleted file mode 100644 index ea2cc9b86..000000000 --- a/third_party/rust/gcc/src/lib.rs +++ /dev/null @@ -1,898 +0,0 @@ -//! A library for build scripts to compile custom C code -//! -//! This library is intended to be used as a `build-dependencies` entry in -//! `Cargo.toml`: -//! -//! ```toml -//! [build-dependencies] -//! gcc = "0.3" -//! ``` -//! -//! The purpose of this crate is to provide the utility functions necessary to -//! compile C code into a static archive which is then linked into a Rust crate. -//! The top-level `compile_library` function serves as a convenience and more -//! advanced configuration is available through the `Config` builder. -//! -//! This crate will automatically detect situations such as cross compilation or -//! other environment variables set by Cargo and will build code appropriately. -//! -//! # Examples -//! -//! Use the default configuration: -//! -//! ```no_run -//! extern crate gcc; -//! -//! fn main() { -//! gcc::compile_library("libfoo.a", &["src/foo.c"]); -//! } -//! ``` -//! -//! Use more advanced configuration: -//! -//! ```no_run -//! extern crate gcc; -//! -//! fn main() { -//! gcc::Config::new() -//! .file("src/foo.c") -//! .define("FOO", Some("bar")) -//! .include("src") -//! .compile("libfoo.a"); -//! } -//! ``` - -#![doc(html_root_url = "http://alexcrichton.com/gcc-rs")] -#![cfg_attr(test, deny(warnings))] -#![deny(missing_docs)] - -#[cfg(feature = "parallel")] -extern crate rayon; - -use std::env; -use std::ffi::{OsString, OsStr}; -use std::fs; -use std::io; -use std::path::{PathBuf, Path}; -use std::process::{Command, Stdio}; -use std::io::{BufReader, BufRead, Write}; - -#[cfg(windows)] -mod registry; -pub mod windows_registry; - -/// Extra configuration to pass to gcc. -pub struct Config { - include_directories: Vec<PathBuf>, - definitions: Vec<(String, Option<String>)>, - objects: Vec<PathBuf>, - flags: Vec<String>, - files: Vec<PathBuf>, - cpp: bool, - cpp_link_stdlib: Option<Option<String>>, - cpp_set_stdlib: Option<String>, - target: Option<String>, - host: Option<String>, - out_dir: Option<PathBuf>, - opt_level: Option<u32>, - debug: Option<bool>, - env: Vec<(OsString, OsString)>, - compiler: Option<PathBuf>, - archiver: Option<PathBuf>, - cargo_metadata: bool, - pic: Option<bool>, -} - -/// Configuration used to represent an invocation of a C compiler. -/// -/// This can be used to figure out what compiler is in use, what the arguments -/// to it are, and what the environment variables look like for the compiler. -/// This can be used to further configure other build systems (e.g. forward -/// along CC and/or CFLAGS) or the `to_command` method can be used to run the -/// compiler itself. -pub struct Tool { - path: PathBuf, - args: Vec<OsString>, - env: Vec<(OsString, OsString)>, -} - -/// Compile a library from the given set of input C files. -/// -/// This will simply compile all files into object files and then assemble them -/// into the output. This will read the standard environment variables to detect -/// cross compilations and such. -/// -/// This function will also print all metadata on standard output for Cargo. -/// -/// # Example -/// -/// ```no_run -/// gcc::compile_library("libfoo.a", &["foo.c", "bar.c"]); -/// ``` -pub fn compile_library(output: &str, files: &[&str]) { - let mut c = Config::new(); - for f in files.iter() { - c.file(*f); - } - c.compile(output) -} - -impl Config { - /// Construct a new instance of a blank set of configuration. - /// - /// This builder is finished with the `compile` function. - pub fn new() -> Config { - Config { - include_directories: Vec::new(), - definitions: Vec::new(), - objects: Vec::new(), - flags: Vec::new(), - files: Vec::new(), - cpp: false, - cpp_link_stdlib: None, - cpp_set_stdlib: None, - target: None, - host: None, - out_dir: None, - opt_level: None, - debug: None, - env: Vec::new(), - compiler: None, - archiver: None, - cargo_metadata: true, - pic: None, - } - } - - /// Add a directory to the `-I` or include path for headers - pub fn include<P: AsRef<Path>>(&mut self, dir: P) -> &mut Config { - self.include_directories.push(dir.as_ref().to_path_buf()); - self - } - - /// Specify a `-D` variable with an optional value. - pub fn define(&mut self, var: &str, val: Option<&str>) -> &mut Config { - self.definitions.push((var.to_string(), val.map(|s| s.to_string()))); - self - } - - /// Add an arbitrary object file to link in - pub fn object<P: AsRef<Path>>(&mut self, obj: P) -> &mut Config { - self.objects.push(obj.as_ref().to_path_buf()); - self - } - - /// Add an arbitrary flag to the invocation of the compiler - pub fn flag(&mut self, flag: &str) -> &mut Config { - self.flags.push(flag.to_string()); - self - } - - /// Add a file which will be compiled - pub fn file<P: AsRef<Path>>(&mut self, p: P) -> &mut Config { - self.files.push(p.as_ref().to_path_buf()); - self - } - - /// Set C++ support. - /// - /// The other `cpp_*` options will only become active if this is set to - /// `true`. - pub fn cpp(&mut self, cpp: bool) -> &mut Config { - self.cpp = cpp; - self - } - - /// Set the standard library to link against when compiling with C++ - /// support. - /// - /// The default value of this property depends on the current target: On - /// OS X `Some("c++")` is used, when compiling for a Visual Studio based - /// target `None` is used and for other targets `Some("stdc++")` is used. - /// - /// A value of `None` indicates that no automatic linking should happen, - /// otherwise cargo will link against the specified library. - /// - /// The given library name must not contain the `lib` prefix. - pub fn cpp_link_stdlib(&mut self, cpp_link_stdlib: Option<&str>) - -> &mut Config { - self.cpp_link_stdlib = Some(cpp_link_stdlib.map(|s| s.into())); - self - } - - /// Force the C++ compiler to use the specified standard library. - /// - /// Setting this option will automatically set `cpp_link_stdlib` to the same - /// value. - /// - /// The default value of this option is always `None`. - /// - /// This option has no effect when compiling for a Visual Studio based - /// target. - /// - /// This option sets the `-stdlib` flag, which is only supported by some - /// compilers (clang, icc) but not by others (gcc). The library will not - /// detect which compiler is used, as such it is the responsibility of the - /// caller to ensure that this option is only used in conjuction with a - /// compiler which supports the `-stdlib` flag. - /// - /// A value of `None` indicates that no specific C++ standard library should - /// be used, otherwise `-stdlib` is added to the compile invocation. - /// - /// The given library name must not contain the `lib` prefix. - pub fn cpp_set_stdlib(&mut self, cpp_set_stdlib: Option<&str>) - -> &mut Config { - self.cpp_set_stdlib = cpp_set_stdlib.map(|s| s.into()); - self.cpp_link_stdlib(cpp_set_stdlib); - self - } - - /// Configures the target this configuration will be compiling for. - /// - /// This option is automatically scraped from the `TARGET` environment - /// variable by build scripts, so it's not required to call this function. - pub fn target(&mut self, target: &str) -> &mut Config { - self.target = Some(target.to_string()); - self - } - - /// Configures the host assumed by this configuration. - /// - /// This option is automatically scraped from the `HOST` environment - /// variable by build scripts, so it's not required to call this function. - pub fn host(&mut self, host: &str) -> &mut Config { - self.host = Some(host.to_string()); - self - } - - /// Configures the optimization level of the generated object files. - /// - /// This option is automatically scraped from the `OPT_LEVEL` environment - /// variable by build scripts, so it's not required to call this function. - pub fn opt_level(&mut self, opt_level: u32) -> &mut Config { - self.opt_level = Some(opt_level); - self - } - - /// Configures whether the compiler will emit debug information when - /// generating object files. - /// - /// This option is automatically scraped from the `PROFILE` environment - /// variable by build scripts (only enabled when the profile is "debug"), so - /// it's not required to call this function. - pub fn debug(&mut self, debug: bool) -> &mut Config { - self.debug = Some(debug); - self - } - - /// Configures the output directory where all object files and static - /// libraries will be located. - /// - /// This option is automatically scraped from the `OUT_DIR` environment - /// variable by build scripts, so it's not required to call this function. - pub fn out_dir<P: AsRef<Path>>(&mut self, out_dir: P) -> &mut Config { - self.out_dir = Some(out_dir.as_ref().to_owned()); - self - } - - /// Configures the compiler to be used to produce output. - /// - /// This option is automatically determined from the target platform or a - /// number of environment variables, so it's not required to call this - /// function. - pub fn compiler<P: AsRef<Path>>(&mut self, compiler: P) -> &mut Config { - self.compiler = Some(compiler.as_ref().to_owned()); - self - } - - /// Configures the tool used to assemble archives. - /// - /// This option is automatically determined from the target platform or a - /// number of environment variables, so it's not required to call this - /// function. - pub fn archiver<P: AsRef<Path>>(&mut self, archiver: P) -> &mut Config { - self.archiver = Some(archiver.as_ref().to_owned()); - self - } - /// Define whether metadata should be emitted for cargo allowing it to - /// automatically link the binary. Defaults to `true`. - pub fn cargo_metadata(&mut self, cargo_metadata: bool) -> &mut Config { - self.cargo_metadata = cargo_metadata; - self - } - - /// Configures whether the compiler will emit position independent code. - /// - /// This option defaults to `false` for `i686` and `windows-gnu` targets and to `true` for all - /// other targets. - pub fn pic(&mut self, pic: bool) -> &mut Config { - self.pic = Some(pic); - self - } - - - #[doc(hidden)] - pub fn __set_env<A, B>(&mut self, a: A, b: B) -> &mut Config - where A: AsRef<OsStr>, B: AsRef<OsStr> - { - self.env.push((a.as_ref().to_owned(), b.as_ref().to_owned())); - self - } - - /// Run the compiler, generating the file `output` - /// - /// The name `output` must begin with `lib` and end with `.a` - pub fn compile(&self, output: &str) { - assert!(output.starts_with("lib")); - assert!(output.ends_with(".a")); - let lib_name = &output[3..output.len() - 2]; - let dst = self.get_out_dir(); - - let mut objects = Vec::new(); - let mut src_dst = Vec::new(); - for file in self.files.iter() { - let obj = dst.join(file).with_extension("o"); - let obj = if !obj.starts_with(&dst) { - dst.join(obj.file_name().unwrap()) - } else { - obj - }; - fs::create_dir_all(&obj.parent().unwrap()).unwrap(); - src_dst.push((file.to_path_buf(), obj.clone())); - objects.push(obj); - } - self.compile_objects(&src_dst); - self.assemble(lib_name, &dst.join(output), &objects); - - self.print(&format!("cargo:rustc-link-lib=static={}", - &output[3..output.len() - 2])); - self.print(&format!("cargo:rustc-link-search=native={}", dst.display())); - - // Add specific C++ libraries, if enabled. - if self.cpp { - if let Some(stdlib) = self.get_cpp_link_stdlib() { - self.print(&format!("cargo:rustc-link-lib={}", stdlib)); - } - } - } - - #[cfg(feature = "parallel")] - fn compile_objects(&self, objs: &[(PathBuf, PathBuf)]) { - use self::rayon::prelude::*; - - let mut cfg = rayon::Configuration::new(); - if let Ok(amt) = env::var("NUM_JOBS") { - if let Ok(amt) = amt.parse() { - cfg = cfg.set_num_threads(amt); - } - } - drop(rayon::initialize(cfg)); - - objs.par_iter().weight_max().for_each(|&(ref src, ref dst)| { - self.compile_object(src, dst) - }) - } - - #[cfg(not(feature = "parallel"))] - fn compile_objects(&self, objs: &[(PathBuf, PathBuf)]) { - for &(ref src, ref dst) in objs { - self.compile_object(src, dst); - } - } - - fn compile_object(&self, file: &Path, dst: &Path) { - let is_asm = file.extension().and_then(|s| s.to_str()) == Some("asm"); - let msvc = self.get_target().contains("msvc"); - let (mut cmd, name) = if msvc && is_asm { - self.msvc_macro_assembler() - } else { - let compiler = self.get_compiler(); - let mut cmd = compiler.to_command(); - for &(ref a, ref b) in self.env.iter() { - cmd.env(a, b); - } - (cmd, compiler.path.file_name().unwrap() - .to_string_lossy().into_owned()) - }; - if msvc && is_asm { - cmd.arg("/Fo").arg(dst); - } else if msvc { - let mut s = OsString::from("/Fo"); - s.push(&dst); - cmd.arg(s); - } else { - cmd.arg("-o").arg(&dst); - } - cmd.arg(if msvc {"/c"} else {"-c"}); - cmd.arg(file); - - run(&mut cmd, &name); - } - - /// Get the compiler that's in use for this configuration. - /// - /// This function will return a `Tool` which represents the culmination - /// of this configuration at a snapshot in time. The returned compiler can - /// be inspected (e.g. the path, arguments, environment) to forward along to - /// other tools, or the `to_command` method can be used to invoke the - /// compiler itself. - /// - /// This method will take into account all configuration such as debug - /// information, optimization level, include directories, defines, etc. - /// Additionally, the compiler binary in use follows the standard - /// conventions for this path, e.g. looking at the explicitly set compiler, - /// environment variables (a number of which are inspected here), and then - /// falling back to the default configuration. - pub fn get_compiler(&self) -> Tool { - let opt_level = self.get_opt_level(); - let debug = self.get_debug(); - let target = self.get_target(); - let msvc = target.contains("msvc"); - self.print(&format!("debug={} opt-level={}", debug, opt_level)); - - let mut cmd = self.get_base_compiler(); - let nvcc = cmd.path.to_str() - .map(|path| path.contains("nvcc")) - .unwrap_or(false); - - if msvc { - cmd.args.push("/nologo".into()); - cmd.args.push("/MD".into()); // link against msvcrt.dll for now - if opt_level != 0 { - cmd.args.push("/O2".into()); - } - if target.contains("i686") { - cmd.args.push("/SAFESEH".into()); - } else if target.contains("i586") { - cmd.args.push("/SAFESEH".into()); - cmd.args.push("/ARCH:IA32".into()); - } - } else if nvcc { - cmd.args.push(format!("-O{}", opt_level).into()); - } else { - cmd.args.push(format!("-O{}", opt_level).into()); - cmd.args.push("-ffunction-sections".into()); - cmd.args.push("-fdata-sections".into()); - } - for arg in self.envflags(if self.cpp {"CXXFLAGS"} else {"CFLAGS"}) { - cmd.args.push(arg.into()); - } - - if debug { - cmd.args.push(if msvc {"/Z7"} else {"-g"}.into()); - } - - if target.contains("-ios") { - self.ios_flags(&mut cmd); - } else if !msvc { - if target.contains("i686") || target.contains("i586") { - cmd.args.push("-m32".into()); - } else if target.contains("x86_64") || target.contains("powerpc64") { - cmd.args.push("-m64".into()); - } - - if !nvcc && self.pic.unwrap_or(!target.contains("i686") && !target.contains("windows-gnu")) { - cmd.args.push("-fPIC".into()); - } else if nvcc && self.pic.unwrap_or(false) { - cmd.args.push("-Xcompiler".into()); - cmd.args.push("\'-fPIC\'".into()); - } - if target.contains("musl") { - cmd.args.push("-static".into()); - } - - if target.starts_with("armv7-unknown-linux-") { - cmd.args.push("-march=armv7-a".into()); - } - if target.starts_with("arm-unknown-linux-") { - cmd.args.push("-march=armv6".into()); - cmd.args.push("-marm".into()); - } - if target.starts_with("i586-unknown-linux-") { - cmd.args.push("-march=pentium".into()); - } - if target.starts_with("i686-unknown-linux-") { - cmd.args.push("-march=i686".into()); - } - } - - if self.cpp && !msvc { - if let Some(ref stdlib) = self.cpp_set_stdlib { - cmd.args.push(format!("-stdlib=lib{}", stdlib).into()); - } - } - - for directory in self.include_directories.iter() { - cmd.args.push(if msvc {"/I"} else {"-I"}.into()); - cmd.args.push(directory.into()); - } - - for flag in self.flags.iter() { - cmd.args.push(flag.into()); - } - - for &(ref key, ref value) in self.definitions.iter() { - let lead = if msvc {"/"} else {"-"}; - if let &Some(ref value) = value { - cmd.args.push(format!("{}D{}={}", lead, key, value).into()); - } else { - cmd.args.push(format!("{}D{}", lead, key).into()); - } - } - cmd - } - - fn msvc_macro_assembler(&self) -> (Command, String) { - let target = self.get_target(); - let tool = if target.contains("x86_64") {"ml64.exe"} else {"ml.exe"}; - let mut cmd = windows_registry::find(&target, tool).unwrap_or_else(|| { - self.cmd(tool) - }); - for directory in self.include_directories.iter() { - cmd.arg("/I").arg(directory); - } - for &(ref key, ref value) in self.definitions.iter() { - if let &Some(ref value) = value { - cmd.arg(&format!("/D{}={}", key, value)); - } else { - cmd.arg(&format!("/D{}", key)); - } - } - - if target.contains("i686") || target.contains("i586") { - cmd.arg("/safeseh"); - } - for flag in self.flags.iter() { - cmd.arg(flag); - } - - (cmd, tool.to_string()) - } - - fn assemble(&self, lib_name: &str, dst: &Path, objects: &[PathBuf]) { - // Delete the destination if it exists as the `ar` tool at least on Unix - // appends to it, which we don't want. - let _ = fs::remove_file(&dst); - - let target = self.get_target(); - if target.contains("msvc") { - let mut cmd = match self.archiver { - Some(ref s) => self.cmd(s), - None => windows_registry::find(&target, "lib.exe") - .unwrap_or(self.cmd("lib.exe")), - }; - let mut out = OsString::from("/OUT:"); - out.push(dst); - run(cmd.arg(out).arg("/nologo") - .args(objects) - .args(&self.objects), "lib.exe"); - - // The Rust compiler will look for libfoo.a and foo.lib, but the - // MSVC linker will also be passed foo.lib, so be sure that both - // exist for now. - let lib_dst = dst.with_file_name(format!("{}.lib", lib_name)); - let _ = fs::remove_file(&lib_dst); - fs::hard_link(&dst, &lib_dst).or_else(|_| { - //if hard-link fails, just copy (ignoring the number of bytes written) - fs::copy(&dst, &lib_dst).map(|_| ()) - }).ok().expect("Copying from {:?} to {:?} failed.");; - } else { - let ar = self.get_ar(); - let cmd = ar.file_name().unwrap().to_string_lossy(); - run(self.cmd(&ar).arg("crus") - .arg(dst) - .args(objects) - .args(&self.objects), &cmd); - } - } - - fn ios_flags(&self, cmd: &mut Tool) { - enum ArchSpec { - Device(&'static str), - Simulator(&'static str), - } - - let target = self.get_target(); - let arch = target.split('-').nth(0).unwrap(); - let arch = match arch { - "arm" | "armv7" | "thumbv7" => ArchSpec::Device("armv7"), - "armv7s" | "thumbv7s" => ArchSpec::Device("armv7s"), - "arm64" | "aarch64" => ArchSpec::Device("arm64"), - "i386" | "i686" => ArchSpec::Simulator("-m32"), - "x86_64" => ArchSpec::Simulator("-m64"), - _ => fail("Unknown arch for iOS target") - }; - - let sdk = match arch { - ArchSpec::Device(arch) => { - cmd.args.push("-arch".into()); - cmd.args.push(arch.into()); - cmd.args.push("-miphoneos-version-min=7.0".into()); - "iphoneos" - }, - ArchSpec::Simulator(arch) => { - cmd.args.push(arch.into()); - cmd.args.push("-mios-simulator-version-min=7.0".into()); - "iphonesimulator" - } - }; - - self.print(&format!("Detecting iOS SDK path for {}", sdk)); - let sdk_path = self.cmd("xcrun") - .arg("--show-sdk-path") - .arg("--sdk") - .arg(sdk) - .stderr(Stdio::inherit()) - .output() - .unwrap() - .stdout; - - let sdk_path = String::from_utf8(sdk_path).unwrap(); - - cmd.args.push("-isysroot".into()); - cmd.args.push(sdk_path.trim().into()); - } - - fn cmd<P: AsRef<OsStr>>(&self, prog: P) -> Command { - let mut cmd = Command::new(prog); - for &(ref a, ref b) in self.env.iter() { - cmd.env(a, b); - } - return cmd - } - - fn get_base_compiler(&self) -> Tool { - if let Some(ref c) = self.compiler { - return Tool::new(c.clone()) - } - let host = self.get_host(); - let target = self.get_target(); - let (env, msvc, gnu, default) = if self.cpp { - ("CXX", "cl.exe", "g++", "c++") - } else { - ("CC", "cl.exe", "gcc", "cc") - }; - self.env_tool(env).map(|(tool, args)| { - let mut t = Tool::new(PathBuf::from(tool)); - for arg in args { - t.args.push(arg.into()); - } - return t - }).or_else(|| { - windows_registry::find_tool(&target, "cl.exe") - }).unwrap_or_else(|| { - let compiler = if host.contains("windows") && - target.contains("windows") { - if target.contains("msvc") { - msvc.to_string() - } else { - format!("{}.exe", gnu) - } - } else if target.contains("android") { - format!("{}-{}", target, gnu) - } else if self.get_host() != target { - let prefix = match &target[..] { - "aarch64-unknown-linux-gnu" => Some("aarch64-linux-gnu"), - "arm-unknown-linux-gnueabi" => Some("arm-linux-gnueabi"), - "arm-unknown-linux-gnueabihf" => Some("arm-linux-gnueabihf"), - "armv7-unknown-linux-gnueabihf" => Some("arm-linux-gnueabihf"), - "arm-unknown-linux-musleabi" => Some("arm-linux-musleabi"), - "arm-unknown-linux-musleabihf" => Some("arm-linux-musleabihf"), - "armv7-unknown-linux-musleabihf" => Some("arm-linux-musleabihf"), - "powerpc-unknown-linux-gnu" => Some("powerpc-linux-gnu"), - "powerpc64-unknown-linux-gnu" => Some("powerpc-linux-gnu"), - "powerpc64le-unknown-linux-gnu" => Some("powerpc64le-linux-gnu"), - "mips-unknown-linux-gnu" => Some("mips-linux-gnu"), - "mipsel-unknown-linux-gnu" => Some("mipsel-linux-gnu"), - "i686-pc-windows-gnu" => Some("i686-w64-mingw32"), - "x86_64-pc-windows-gnu" => Some("x86_64-w64-mingw32"), - "x86_64-unknown-linux-musl" => Some("musl"), - "x86_64-rumprun-netbsd" => Some("x86_64-rumprun-netbsd"), - _ => None, - }; - match prefix { - Some(prefix) => format!("{}-{}", prefix, gnu), - None => default.to_string(), - } - } else { - default.to_string() - }; - Tool::new(PathBuf::from(compiler)) - }) - } - - fn get_var(&self, var_base: &str) -> Result<String, String> { - let target = self.get_target(); - let host = self.get_host(); - let kind = if host == target {"HOST"} else {"TARGET"}; - let target_u = target.replace("-", "_"); - let res = self.getenv(&format!("{}_{}", var_base, target)) - .or_else(|| self.getenv(&format!("{}_{}", var_base, target_u))) - .or_else(|| self.getenv(&format!("{}_{}", kind, var_base))) - .or_else(|| self.getenv(var_base)); - - match res { - Some(res) => Ok(res), - None => Err("could not get environment variable".to_string()), - } - } - - fn envflags(&self, name: &str) -> Vec<String> { - self.get_var(name).unwrap_or(String::new()) - .split(|c: char| c.is_whitespace()).filter(|s| !s.is_empty()) - .map(|s| s.to_string()) - .collect() - } - - fn env_tool(&self, name: &str) -> Option<(String, Vec<String>)> { - self.get_var(name).ok().map(|tool| { - let whitelist = ["ccache", "distcc"]; - for t in whitelist.iter() { - if tool.starts_with(t) && tool[t.len()..].starts_with(" ") { - return (t.to_string(), - vec![tool[t.len()..].trim_left().to_string()]) - } - } - (tool, Vec::new()) - }) - } - - /// Returns the default C++ standard library for the current target: `libc++` - /// for OS X and `libstdc++` for anything else. - fn get_cpp_link_stdlib(&self) -> Option<String> { - self.cpp_link_stdlib.clone().unwrap_or_else(|| { - let target = self.get_target(); - if target.contains("msvc") { - None - } else if target.contains("darwin") { - Some("c++".to_string()) - } else { - Some("stdc++".to_string()) - } - }) - } - - fn get_ar(&self) -> PathBuf { - self.archiver.clone().or_else(|| { - self.get_var("AR").map(PathBuf::from).ok() - }).unwrap_or_else(|| { - if self.get_target().contains("android") { - PathBuf::from(format!("{}-ar", self.get_target())) - } else { - PathBuf::from("ar") - } - }) - } - - fn get_target(&self) -> String { - self.target.clone().unwrap_or_else(|| self.getenv_unwrap("TARGET")) - } - - fn get_host(&self) -> String { - self.host.clone().unwrap_or_else(|| self.getenv_unwrap("HOST")) - } - - fn get_opt_level(&self) -> u32 { - self.opt_level.unwrap_or_else(|| { - self.getenv_unwrap("OPT_LEVEL").parse().unwrap() - }) - } - - fn get_debug(&self) -> bool { - self.debug.unwrap_or_else(|| self.getenv_unwrap("PROFILE") == "debug") - } - - fn get_out_dir(&self) -> PathBuf { - self.out_dir.clone().unwrap_or_else(|| { - env::var_os("OUT_DIR").map(PathBuf::from).unwrap() - }) - } - - fn getenv(&self, v: &str) -> Option<String> { - let r = env::var(v).ok(); - self.print(&format!("{} = {:?}", v, r)); - r - } - - fn getenv_unwrap(&self, v: &str) -> String { - match self.getenv(v) { - Some(s) => s, - None => fail(&format!("environment variable `{}` not defined", v)), - } - } - - fn print(&self, s: &str) { - if self.cargo_metadata { - println!("{}", s); - } - } -} - -impl Tool { - fn new(path: PathBuf) -> Tool { - Tool { - path: path, - args: Vec::new(), - env: Vec::new(), - } - } - - /// Converts this compiler into a `Command` that's ready to be run. - /// - /// This is useful for when the compiler needs to be executed and the - /// command returned will already have the initial arguments and environment - /// variables configured. - pub fn to_command(&self) -> Command { - let mut cmd = Command::new(&self.path); - cmd.args(&self.args); - for &(ref k, ref v) in self.env.iter() { - cmd.env(k, v); - } - return cmd - } - - /// Returns the path for this compiler. - /// - /// Note that this may not be a path to a file on the filesystem, e.g. "cc", - /// but rather something which will be resolved when a process is spawned. - pub fn path(&self) -> &Path { - &self.path - } - - /// Returns the default set of arguments to the compiler needed to produce - /// executables for the target this compiler generates. - pub fn args(&self) -> &[OsString] { - &self.args - } - - /// Returns the set of environment variables needed for this compiler to - /// operate. - /// - /// This is typically only used for MSVC compilers currently. - pub fn env(&self) -> &[(OsString, OsString)] { - &self.env - } -} - -fn run(cmd: &mut Command, program: &str) { - println!("running: {:?}", cmd); - // Capture the standard error coming from these programs, and write it out - // with cargo:warning= prefixes. Note that this is a bit wonky to avoid - // requiring the output to be UTF-8, we instead just ship bytes from one - // location to another. - let spawn_result = match cmd.stderr(Stdio::piped()).spawn() { - Ok(mut child) => { - let stderr = BufReader::new(child.stderr.take().unwrap()); - for line in stderr.split(b'\n').filter_map(|l| l.ok()) { - print!("cargo:warning="); - std::io::stdout().write_all(&line).unwrap(); - println!(""); - } - child.wait() - } - Err(e) => Err(e), - }; - let status = match spawn_result { - Ok(status) => status, - Err(ref e) if e.kind() == io::ErrorKind::NotFound => { - let extra = if cfg!(windows) { - " (see https://github.com/alexcrichton/gcc-rs#compile-time-requirements \ - for help)" - } else { - "" - }; - fail(&format!("failed to execute command: {}\nIs `{}` \ - not installed?{}", e, program, extra)); - } - Err(e) => fail(&format!("failed to execute command: {}", e)), - }; - println!("{:?}", status); - if !status.success() { - fail(&format!("command did not execute successfully, got: {}", status)); - } -} - -fn fail(s: &str) -> ! { - println!("\n\n{}\n\n", s); - panic!() -} diff --git a/third_party/rust/gcc/src/registry.rs b/third_party/rust/gcc/src/registry.rs deleted file mode 100644 index d871cd21f..000000000 --- a/third_party/rust/gcc/src/registry.rs +++ /dev/null @@ -1,169 +0,0 @@ -// Copyright 2015 The Rust Project Developers. See the COPYRIGHT -// file at the top-level directory of this distribution and at -// http://rust-lang.org/COPYRIGHT. -// -// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or -// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license -// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your -// option. This file may not be copied, modified, or distributed -// except according to those terms. - -use std::ffi::{OsString, OsStr}; -use std::io; -use std::ops::RangeFrom; -use std::os::raw; -use std::os::windows::prelude::*; - -pub struct RegistryKey(Repr); - -type HKEY = *mut u8; -type DWORD = u32; -type LPDWORD = *mut DWORD; -type LPCWSTR = *const u16; -type LPWSTR = *mut u16; -type LONG = raw::c_long; -type PHKEY = *mut HKEY; -type PFILETIME = *mut u8; -type LPBYTE = *mut u8; -type REGSAM = u32; - -const ERROR_SUCCESS: DWORD = 0; -const ERROR_NO_MORE_ITEMS: DWORD = 259; -const HKEY_LOCAL_MACHINE: HKEY = 0x80000002 as HKEY; -const REG_SZ: DWORD = 1; -const KEY_READ: DWORD = 0x20019; -const KEY_WOW64_32KEY: DWORD = 0x200; - -#[link(name = "advapi32")] -extern "system" { - fn RegOpenKeyExW(key: HKEY, - lpSubKey: LPCWSTR, - ulOptions: DWORD, - samDesired: REGSAM, - phkResult: PHKEY) -> LONG; - fn RegEnumKeyExW(key: HKEY, - dwIndex: DWORD, - lpName: LPWSTR, - lpcName: LPDWORD, - lpReserved: LPDWORD, - lpClass: LPWSTR, - lpcClass: LPDWORD, - lpftLastWriteTime: PFILETIME) -> LONG; - fn RegQueryValueExW(hKey: HKEY, - lpValueName: LPCWSTR, - lpReserved: LPDWORD, - lpType: LPDWORD, - lpData: LPBYTE, - lpcbData: LPDWORD) -> LONG; - fn RegCloseKey(hKey: HKEY) -> LONG; -} - -struct OwnedKey(HKEY); - -enum Repr { - Const(HKEY), - Owned(OwnedKey), -} - -pub struct Iter<'a> { - idx: RangeFrom<DWORD>, - key: &'a RegistryKey, -} - -unsafe impl Sync for Repr {} -unsafe impl Send for Repr {} - -pub static LOCAL_MACHINE: RegistryKey = - RegistryKey(Repr::Const(HKEY_LOCAL_MACHINE)); - -impl RegistryKey { - fn raw(&self) -> HKEY { - match self.0 { - Repr::Const(val) => val, - Repr::Owned(ref val) => val.0, - } - } - - pub fn open(&self, key: &OsStr) -> io::Result<RegistryKey> { - let key = key.encode_wide().chain(Some(0)).collect::<Vec<_>>(); - let mut ret = 0 as *mut _; - let err = unsafe { - RegOpenKeyExW(self.raw(), key.as_ptr(), 0, - KEY_READ | KEY_WOW64_32KEY, &mut ret) - }; - if err == ERROR_SUCCESS as LONG { - Ok(RegistryKey(Repr::Owned(OwnedKey(ret)))) - } else { - Err(io::Error::from_raw_os_error(err as i32)) - } - } - - pub fn iter(&self) -> Iter { - Iter { idx: 0.., key: self } - } - - pub fn query_str(&self, name: &str) -> io::Result<OsString> { - let name: &OsStr = name.as_ref(); - let name = name.encode_wide().chain(Some(0)).collect::<Vec<_>>(); - let mut len = 0; - let mut kind = 0; - unsafe { - let err = RegQueryValueExW(self.raw(), name.as_ptr(), 0 as *mut _, - &mut kind, 0 as *mut _, &mut len); - if err != ERROR_SUCCESS as LONG { - return Err(io::Error::from_raw_os_error(err as i32)) - } - if kind != REG_SZ { - return Err(io::Error::new(io::ErrorKind::Other, - "registry key wasn't a string")) - } - - // The length here is the length in bytes, but we're using wide - // characters so we need to be sure to halve it for the capacity - // passed in. - let mut v = Vec::with_capacity(len as usize / 2); - let err = RegQueryValueExW(self.raw(), name.as_ptr(), 0 as *mut _, - 0 as *mut _, v.as_mut_ptr() as *mut _, - &mut len); - if err != ERROR_SUCCESS as LONG { - return Err(io::Error::from_raw_os_error(err as i32)) - } - v.set_len(len as usize / 2); - - // Some registry keys may have a terminating nul character, but - // we're not interested in that, so chop it off if it's there. - if v[v.len() - 1] == 0 { - v.pop(); - } - Ok(OsString::from_wide(&v)) - } - } -} - -impl Drop for OwnedKey { - fn drop(&mut self) { - unsafe { RegCloseKey(self.0); } - } -} - -impl<'a> Iterator for Iter<'a> { - type Item = io::Result<OsString>; - - fn next(&mut self) -> Option<io::Result<OsString>> { - self.idx.next().and_then(|i| unsafe { - let mut v = Vec::with_capacity(256); - let mut len = v.capacity() as DWORD; - let ret = RegEnumKeyExW(self.key.raw(), i, v.as_mut_ptr(), &mut len, - 0 as *mut _, 0 as *mut _, 0 as *mut _, - 0 as *mut _); - if ret == ERROR_NO_MORE_ITEMS as LONG { - None - } else if ret != ERROR_SUCCESS as LONG { - Some(Err(io::Error::from_raw_os_error(ret as i32))) - } else { - v.set_len(len as usize); - Some(Ok(OsString::from_wide(&v))) - } - }) - } -} diff --git a/third_party/rust/gcc/src/windows_registry.rs b/third_party/rust/gcc/src/windows_registry.rs deleted file mode 100644 index c2d3a53d3..000000000 --- a/third_party/rust/gcc/src/windows_registry.rs +++ /dev/null @@ -1,423 +0,0 @@ -// Copyright 2015 The Rust Project Developers. See the COPYRIGHT -// file at the top-level directory of this distribution and at -// http://rust-lang.org/COPYRIGHT. -// -// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or -// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license -// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your -// option. This file may not be copied, modified, or distributed -// except according to those terms. - -//! A helper module to probe the Windows Registry when looking for -//! windows-specific tools. - -use std::process::Command; - -use Tool; - -macro_rules! otry { - ($expr:expr) => (match $expr { - Some(val) => val, - None => return None, - }) -} - -/// Attempts to find a tool within an MSVC installation using the Windows -/// registry as a point to search from. -/// -/// The `target` argument is the target that the tool should work for (e.g. -/// compile or link for) and the `tool` argument is the tool to find (e.g. -/// `cl.exe` or `link.exe`). -/// -/// This function will return `None` if the tool could not be found, or it will -/// return `Some(cmd)` which represents a command that's ready to execute the -/// tool with the appropriate environment variables set. -/// -/// Note that this function always returns `None` for non-MSVC targets. -pub fn find(target: &str, tool: &str) -> Option<Command> { - find_tool(target, tool).map(|c| c.to_command()) -} - -/// Similar to the `find` function above, this function will attempt the same -/// operation (finding a MSVC tool in a local install) but instead returns a -/// `Tool` which may be introspected. -#[cfg(not(windows))] -pub fn find_tool(_target: &str, _tool: &str) -> Option<Tool> { - None -} - -/// Documented above. -#[cfg(windows)] -pub fn find_tool(target: &str, tool: &str) -> Option<Tool> { - use std::env; - use std::ffi::OsString; - use std::mem; - use std::path::{Path, PathBuf}; - use registry::{RegistryKey, LOCAL_MACHINE}; - - struct MsvcTool { - tool: PathBuf, - libs: Vec<PathBuf>, - path: Vec<PathBuf>, - include: Vec<PathBuf>, - } - - impl MsvcTool { - fn new(tool: PathBuf) -> MsvcTool { - MsvcTool { - tool: tool, - libs: Vec::new(), - path: Vec::new(), - include: Vec::new(), - } - } - - fn into_tool(self) -> Tool { - let MsvcTool { tool, libs, path, include } = self; - let mut tool = Tool::new(tool.into()); - add_env(&mut tool, "LIB", libs); - add_env(&mut tool, "PATH", path); - add_env(&mut tool, "INCLUDE", include); - return tool - } - } - - // This logic is all tailored for MSVC, if we're not that then bail out - // early. - if !target.contains("msvc") { - return None - } - - // Looks like msbuild isn't located in the same location as other tools like - // cl.exe and lib.exe. To handle this we probe for it manually with - // dedicated registry keys. - if tool.contains("msbuild") { - return find_msbuild(target) - } - - // If VCINSTALLDIR is set, then someone's probably already run vcvars and we - // should just find whatever that indicates. - if env::var_os("VCINSTALLDIR").is_some() { - return env::var_os("PATH").and_then(|path| { - env::split_paths(&path).map(|p| p.join(tool)).find(|p| p.exists()) - }).map(|path| { - Tool::new(path.into()) - }) - } - - // Ok, if we're here, now comes the fun part of the probing. Default shells - // or shells like MSYS aren't really configured to execute `cl.exe` and the - // various compiler tools shipped as part of Visual Studio. Here we try to - // first find the relevant tool, then we also have to be sure to fill in - // environment variables like `LIB`, `INCLUDE`, and `PATH` to ensure that - // the tool is actually usable. - - return find_msvc_latest(tool, target, "15.0").or_else(|| { - find_msvc_latest(tool, target, "14.0") - }).or_else(|| { - find_msvc_12(tool, target) - }).or_else(|| { - find_msvc_11(tool, target) - }); - - // For MSVC 14 or newer we need to find the Universal CRT as well as either - // the Windows 10 SDK or Windows 8.1 SDK. - fn find_msvc_latest(tool: &str, target: &str, ver: &str) -> Option<Tool> { - let vcdir = otry!(get_vc_dir(ver)); - let mut tool = otry!(get_tool(tool, &vcdir, target)); - let sub = otry!(lib_subdir(target)); - let (ucrt, ucrt_version) = otry!(get_ucrt_dir()); - - let ucrt_include = ucrt.join("include").join(&ucrt_version); - tool.include.push(ucrt_include.join("ucrt")); - - let ucrt_lib = ucrt.join("lib").join(&ucrt_version); - tool.libs.push(ucrt_lib.join("ucrt").join(sub)); - - if let Some((sdk, version)) = get_sdk10_dir() { - tool.path.push(sdk.join("bin").join(sub)); - let sdk_lib = sdk.join("lib").join(&version); - tool.libs.push(sdk_lib.join("um").join(sub)); - let sdk_include = sdk.join("include").join(&version); - tool.include.push(sdk_include.join("um")); - tool.include.push(sdk_include.join("winrt")); - tool.include.push(sdk_include.join("shared")); - } else if let Some(sdk) = get_sdk81_dir() { - tool.path.push(sdk.join("bin").join(sub)); - let sdk_lib = sdk.join("lib").join("winv6.3"); - tool.libs.push(sdk_lib.join("um").join(sub)); - let sdk_include = sdk.join("include"); - tool.include.push(sdk_include.join("um")); - tool.include.push(sdk_include.join("winrt")); - tool.include.push(sdk_include.join("shared")); - } else { - return None - } - Some(tool.into_tool()) - } - - // For MSVC 12 we need to find the Windows 8.1 SDK. - fn find_msvc_12(tool: &str, target: &str) -> Option<Tool> { - let vcdir = otry!(get_vc_dir("12.0")); - let mut tool = otry!(get_tool(tool, &vcdir, target)); - let sub = otry!(lib_subdir(target)); - let sdk81 = otry!(get_sdk81_dir()); - tool.path.push(sdk81.join("bin").join(sub)); - let sdk_lib = sdk81.join("lib").join("winv6.3"); - tool.libs.push(sdk_lib.join("um").join(sub)); - let sdk_include = sdk81.join("include"); - tool.include.push(sdk_include.join("shared")); - tool.include.push(sdk_include.join("um")); - tool.include.push(sdk_include.join("winrt")); - Some(tool.into_tool()) - } - - // For MSVC 11 we need to find the Windows 8 SDK. - fn find_msvc_11(tool: &str, target: &str) -> Option<Tool> { - let vcdir = otry!(get_vc_dir("11.0")); - let mut tool = otry!(get_tool(tool, &vcdir, target)); - let sub = otry!(lib_subdir(target)); - let sdk8 = otry!(get_sdk8_dir()); - tool.path.push(sdk8.join("bin").join(sub)); - let sdk_lib = sdk8.join("lib").join("win8"); - tool.libs.push(sdk_lib.join("um").join(sub)); - let sdk_include = sdk8.join("include"); - tool.include.push(sdk_include.join("shared")); - tool.include.push(sdk_include.join("um")); - tool.include.push(sdk_include.join("winrt")); - Some(tool.into_tool()) - } - - fn add_env(tool: &mut Tool, env: &str, paths: Vec<PathBuf>) { - let prev = env::var_os(env).unwrap_or(OsString::new()); - let prev = env::split_paths(&prev); - let new = paths.into_iter().chain(prev); - tool.env.push((env.to_string().into(), env::join_paths(new).unwrap())); - } - - // Given a possible MSVC installation directory, we look for the linker and - // then add the MSVC library path. - fn get_tool(tool: &str, path: &Path, target: &str) -> Option<MsvcTool> { - bin_subdir(target).into_iter().map(|(sub, host)| { - (path.join("bin").join(sub).join(tool), - path.join("bin").join(host)) - }).filter(|&(ref path, _)| { - path.is_file() - }).map(|(path, host)| { - let mut tool = MsvcTool::new(path); - tool.path.push(host); - tool - }).filter_map(|mut tool| { - let sub = otry!(vc_lib_subdir(target)); - tool.libs.push(path.join("lib").join(sub)); - tool.include.push(path.join("include")); - Some(tool) - }).next() - } - - // To find MSVC we look in a specific registry key for the version we are - // trying to find. - fn get_vc_dir(ver: &str) -> Option<PathBuf> { - let key = r"SOFTWARE\Microsoft\VisualStudio\SxS\VC7"; - let key = otry!(LOCAL_MACHINE.open(key.as_ref()).ok()); - let path = otry!(key.query_str(ver).ok()); - Some(path.into()) - } - - // To find the Universal CRT we look in a specific registry key for where - // all the Universal CRTs are located and then sort them asciibetically to - // find the newest version. While this sort of sorting isn't ideal, it is - // what vcvars does so that's good enough for us. - // - // Returns a pair of (root, version) for the ucrt dir if found - fn get_ucrt_dir() -> Option<(PathBuf, String)> { - let key = r"SOFTWARE\Microsoft\Windows Kits\Installed Roots"; - let key = otry!(LOCAL_MACHINE.open(key.as_ref()).ok()); - let root = otry!(key.query_str("KitsRoot10").ok()); - let readdir = otry!(Path::new(&root).join("lib").read_dir().ok()); - let max_libdir = otry!(readdir.filter_map(|dir| { - dir.ok() - }).map(|dir| { - dir.path() - }).filter(|dir| { - dir.components().last().and_then(|c| { - c.as_os_str().to_str() - }).map(|c| { - c.starts_with("10.") && dir.join("ucrt").is_dir() - }).unwrap_or(false) - }).max()); - let version = max_libdir.components().last().unwrap(); - let version = version.as_os_str().to_str().unwrap().to_string(); - Some((root.into(), version)) - } - - // Vcvars finds the correct version of the Windows 10 SDK by looking - // for the include `um\Windows.h` because sometimes a given version will - // only have UCRT bits without the rest of the SDK. Since we only care about - // libraries and not includes, we instead look for `um\x64\kernel32.lib`. - // Since the 32-bit and 64-bit libraries are always installed together we - // only need to bother checking x64, making this code a tiny bit simpler. - // Like we do for the Universal CRT, we sort the possibilities - // asciibetically to find the newest one as that is what vcvars does. - fn get_sdk10_dir() -> Option<(PathBuf, String)> { - let key = r"SOFTWARE\Microsoft\Microsoft SDKs\Windows\v10.0"; - let key = otry!(LOCAL_MACHINE.open(key.as_ref()).ok()); - let root = otry!(key.query_str("InstallationFolder").ok()); - let readdir = otry!(Path::new(&root).join("lib").read_dir().ok()); - let mut dirs = readdir.filter_map(|dir| dir.ok()) - .map(|dir| dir.path()) - .collect::<Vec<_>>(); - dirs.sort(); - let dir = otry!(dirs.into_iter().rev().filter(|dir| { - dir.join("um").join("x64").join("kernel32.lib").is_file() - }).next()); - let version = dir.components().last().unwrap(); - let version = version.as_os_str().to_str().unwrap().to_string(); - Some((root.into(), version)) - } - - // Interestingly there are several subdirectories, `win7` `win8` and - // `winv6.3`. Vcvars seems to only care about `winv6.3` though, so the same - // applies to us. Note that if we were targetting kernel mode drivers - // instead of user mode applications, we would care. - fn get_sdk81_dir() -> Option<PathBuf> { - let key = r"SOFTWARE\Microsoft\Microsoft SDKs\Windows\v8.1"; - let key = otry!(LOCAL_MACHINE.open(key.as_ref()).ok()); - let root = otry!(key.query_str("InstallationFolder").ok()); - Some(root.into()) - } - - fn get_sdk8_dir() -> Option<PathBuf> { - let key = r"SOFTWARE\Microsoft\Microsoft SDKs\Windows\v8.0"; - let key = otry!(LOCAL_MACHINE.open(key.as_ref()).ok()); - let root = otry!(key.query_str("InstallationFolder").ok()); - Some(root.into()) - } - - const PROCESSOR_ARCHITECTURE_INTEL: u16 = 0; - const PROCESSOR_ARCHITECTURE_AMD64: u16 = 9; - const X86: u16 = PROCESSOR_ARCHITECTURE_INTEL; - const X86_64: u16 = PROCESSOR_ARCHITECTURE_AMD64; - - // When choosing the tool to use, we have to choose the one which matches - // the target architecture. Otherwise we end up in situations where someone - // on 32-bit Windows is trying to cross compile to 64-bit and it tries to - // invoke the native 64-bit compiler which won't work. - // - // For the return value of this function, the first member of the tuple is - // the folder of the tool we will be invoking, while the second member is - // the folder of the host toolchain for that tool which is essential when - // using a cross linker. We return a Vec since on x64 there are often two - // linkers that can target the architecture we desire. The 64-bit host - // linker is preferred, and hence first, due to 64-bit allowing it more - // address space to work with and potentially being faster. - fn bin_subdir(target: &str) -> Vec<(&'static str, &'static str)> { - let arch = target.split('-').next().unwrap(); - match (arch, host_arch()) { - ("i686", X86) => vec![("", "")], - ("i686", X86_64) => vec![("amd64_x86", "amd64"), ("", "")], - ("x86_64", X86) => vec![("x86_amd64", "")], - ("x86_64", X86_64) => vec![("amd64", "amd64"), ("x86_amd64", "")], - ("arm", X86) => vec![("x86_arm", "")], - ("arm", X86_64) => vec![("amd64_arm", "amd64"), ("x86_arm", "")], - _ => vec![], - } - } - - fn lib_subdir(target: &str) -> Option<&'static str> { - let arch = target.split('-').next().unwrap(); - match arch { - "i686" => Some("x86"), - "x86_64" => Some("x64"), - "arm" => Some("arm"), - _ => None, - } - } - - // MSVC's x86 libraries are not in a subfolder - fn vc_lib_subdir(target: &str) -> Option<&'static str> { - let arch = target.split('-').next().unwrap(); - match arch { - "i686" => Some(""), - "x86_64" => Some("amd64"), - "arm" => Some("arm"), - _ => None, - } - } - - #[allow(bad_style)] - fn host_arch() -> u16 { - type DWORD = u32; - type WORD = u16; - type LPVOID = *mut u8; - type DWORD_PTR = usize; - - #[repr(C)] - struct SYSTEM_INFO { - wProcessorArchitecture: WORD, - _wReserved: WORD, - _dwPageSize: DWORD, - _lpMinimumApplicationAddress: LPVOID, - _lpMaximumApplicationAddress: LPVOID, - _dwActiveProcessorMask: DWORD_PTR, - _dwNumberOfProcessors: DWORD, - _dwProcessorType: DWORD, - _dwAllocationGranularity: DWORD, - _wProcessorLevel: WORD, - _wProcessorRevision: WORD, - } - - extern "system" { - fn GetNativeSystemInfo(lpSystemInfo: *mut SYSTEM_INFO); - } - - unsafe { - let mut info = mem::zeroed(); - GetNativeSystemInfo(&mut info); - info.wProcessorArchitecture - } - } - - // Given a registry key, look at all the sub keys and find the one which has - // the maximal numeric value. - // - // Returns the name of the maximal key as well as the opened maximal key. - fn max_version(key: &RegistryKey) -> Option<(OsString, RegistryKey)> { - let mut max_vers = 0; - let mut max_key = None; - for subkey in key.iter().filter_map(|k| k.ok()) { - let val = subkey.to_str().and_then(|s| { - s.trim_left_matches("v").replace(".", "").parse().ok() - }); - let val = match val { - Some(s) => s, - None => continue, - }; - if val > max_vers { - if let Ok(k) = key.open(&subkey) { - max_vers = val; - max_key = Some((subkey, k)); - } - } - } - return max_key - } - - // see http://stackoverflow.com/questions/328017/path-to-msbuild - fn find_msbuild(target: &str) -> Option<Tool> { - let key = r"SOFTWARE\Microsoft\MSBuild\ToolsVersions"; - LOCAL_MACHINE.open(key.as_ref()).ok().and_then(|key| { - max_version(&key).and_then(|(_vers, key)| { - key.query_str("MSBuildToolsPath").ok() - }) - }).map(|path| { - let mut path = PathBuf::from(path); - path.push("MSBuild.exe"); - let mut tool = Tool::new(path); - if target.contains("x86_64") { - tool.env.push(("Platform".into(), "X64".into())); - } - tool - }) - } -} |