2e72bcb934
Now that the final bug fixes have been merged into sccache we can start leveraging sccache on the MSVC builders on AppVeyor instead of relying on the ad-hoc caching strategy of trigger files and whatnot.
350 lines
13 KiB
Rust
350 lines
13 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Compilation of native dependencies like LLVM.
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//!
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//! Native projects like LLVM unfortunately aren't suited just yet for
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//! compilation in build scripts that Cargo has. This is because thie
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//! compilation takes a *very* long time but also because we don't want to
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//! compile LLVM 3 times as part of a normal bootstrap (we want it cached).
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//!
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//! LLVM and compiler-rt are essentially just wired up to everything else to
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//! ensure that they're always in place if needed.
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use std::env;
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use std::ffi::OsString;
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use std::fs::{self, File};
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use std::io::{Read, Write};
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use std::path::Path;
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use std::process::Command;
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use build_helper::output;
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use cmake;
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use gcc;
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use Build;
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use util;
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use build_helper::up_to_date;
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/// Compile LLVM for `target`.
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pub fn llvm(build: &Build, target: &str) {
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// If we're using a custom LLVM bail out here, but we can only use a
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// custom LLVM for the build triple.
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if let Some(config) = build.config.target_config.get(target) {
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if let Some(ref s) = config.llvm_config {
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return check_llvm_version(build, s);
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}
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}
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let rebuild_trigger = build.src.join("src/rustllvm/llvm-rebuild-trigger");
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let mut rebuild_trigger_contents = String::new();
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t!(t!(File::open(&rebuild_trigger)).read_to_string(&mut rebuild_trigger_contents));
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let out_dir = build.llvm_out(target);
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let done_stamp = out_dir.join("llvm-finished-building");
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if done_stamp.exists() {
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let mut done_contents = String::new();
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t!(t!(File::open(&done_stamp)).read_to_string(&mut done_contents));
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// If LLVM was already built previously and contents of the rebuild-trigger file
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// didn't change from the previous build, then no action is required.
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if done_contents == rebuild_trigger_contents {
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return
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}
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}
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if build.config.llvm_clean_rebuild {
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drop(fs::remove_dir_all(&out_dir));
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}
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println!("Building LLVM for {}", target);
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let _time = util::timeit();
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t!(fs::create_dir_all(&out_dir));
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// http://llvm.org/docs/CMake.html
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let mut cfg = cmake::Config::new(build.src.join("src/llvm"));
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if build.config.ninja {
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cfg.generator("Ninja");
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}
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let profile = match (build.config.llvm_optimize, build.config.llvm_release_debuginfo) {
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(false, _) => "Debug",
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(true, false) => "Release",
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(true, true) => "RelWithDebInfo",
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};
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// NOTE: remember to also update `config.toml.example` when changing the defaults!
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let llvm_targets = match build.config.llvm_targets {
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Some(ref s) => s,
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None => "X86;ARM;AArch64;Mips;PowerPC;SystemZ;JSBackend;MSP430;Sparc;NVPTX;Hexagon",
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};
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let assertions = if build.config.llvm_assertions {"ON"} else {"OFF"};
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cfg.target(target)
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.host(&build.config.build)
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.out_dir(&out_dir)
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.profile(profile)
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.define("LLVM_ENABLE_ASSERTIONS", assertions)
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.define("LLVM_TARGETS_TO_BUILD", llvm_targets)
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.define("LLVM_INCLUDE_EXAMPLES", "OFF")
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.define("LLVM_INCLUDE_TESTS", "OFF")
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.define("LLVM_INCLUDE_DOCS", "OFF")
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.define("LLVM_ENABLE_ZLIB", "OFF")
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.define("WITH_POLLY", "OFF")
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.define("LLVM_ENABLE_TERMINFO", "OFF")
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.define("LLVM_ENABLE_LIBEDIT", "OFF")
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.define("LLVM_PARALLEL_COMPILE_JOBS", build.jobs().to_string())
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.define("LLVM_TARGET_ARCH", target.split('-').next().unwrap())
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.define("LLVM_DEFAULT_TARGET_TRIPLE", target);
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if target.contains("msvc") {
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cfg.define("LLVM_USE_CRT_DEBUG", "MT");
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cfg.define("LLVM_USE_CRT_RELEASE", "MT");
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cfg.define("LLVM_USE_CRT_RELWITHDEBINFO", "MT");
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}
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if target.starts_with("i686") {
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cfg.define("LLVM_BUILD_32_BITS", "ON");
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}
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if let Some(num_linkers) = build.config.llvm_link_jobs {
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if num_linkers > 0 {
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cfg.define("LLVM_PARALLEL_LINK_JOBS", num_linkers.to_string());
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}
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}
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// http://llvm.org/docs/HowToCrossCompileLLVM.html
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if target != build.config.build {
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// FIXME: if the llvm root for the build triple is overridden then we
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// should use llvm-tblgen from there, also should verify that it
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// actually exists most of the time in normal installs of LLVM.
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let host = build.llvm_out(&build.config.build).join("bin/llvm-tblgen");
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cfg.define("CMAKE_CROSSCOMPILING", "True")
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.define("LLVM_TABLEGEN", &host);
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}
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let sanitize_cc = |cc: &Path| {
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if target.contains("msvc") {
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OsString::from(cc.to_str().unwrap().replace("\\", "/"))
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} else {
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cc.as_os_str().to_owned()
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}
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};
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let configure_compilers = |cfg: &mut cmake::Config| {
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// MSVC with CMake uses msbuild by default which doesn't respect these
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// vars that we'd otherwise configure. In that case we just skip this
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// entirely.
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if target.contains("msvc") && !build.config.ninja {
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return
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}
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let cc = build.cc(target);
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let cxx = build.cxx(target);
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// Handle msvc + ninja + ccache specially (this is what the bots use)
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if target.contains("msvc") &&
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build.config.ninja &&
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build.config.ccache.is_some() {
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let mut cc = env::current_exe().expect("failed to get cwd");
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cc.set_file_name("sccache-plus-cl.exe");
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cfg.define("CMAKE_C_COMPILER", sanitize_cc(&cc))
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.define("CMAKE_CXX_COMPILER", sanitize_cc(&cc));
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cfg.env("SCCACHE_PATH",
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build.config.ccache.as_ref().unwrap())
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.env("SCCACHE_TARGET", target);
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// If ccache is configured we inform the build a little differently hwo
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// to invoke ccache while also invoking our compilers.
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} else if let Some(ref ccache) = build.config.ccache {
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cfg.define("CMAKE_C_COMPILER", ccache)
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.define("CMAKE_C_COMPILER_ARG1", sanitize_cc(cc))
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.define("CMAKE_CXX_COMPILER", ccache)
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.define("CMAKE_CXX_COMPILER_ARG1", sanitize_cc(cxx));
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} else {
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cfg.define("CMAKE_C_COMPILER", sanitize_cc(cc))
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.define("CMAKE_CXX_COMPILER", sanitize_cc(cxx));
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}
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cfg.build_arg("-j").build_arg(build.jobs().to_string());
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cfg.define("CMAKE_C_FLAGS", build.cflags(target).join(" "));
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cfg.define("CMAKE_CXX_FLAGS", build.cflags(target).join(" "));
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};
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configure_compilers(&mut cfg);
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if env::var_os("SCCACHE_ERROR_LOG").is_some() {
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cfg.env("RUST_LOG", "sccache=info");
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}
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// FIXME: we don't actually need to build all LLVM tools and all LLVM
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// libraries here, e.g. we just want a few components and a few
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// tools. Figure out how to filter them down and only build the right
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// tools and libs on all platforms.
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cfg.build();
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t!(t!(File::create(&done_stamp)).write_all(rebuild_trigger_contents.as_bytes()));
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}
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fn check_llvm_version(build: &Build, llvm_config: &Path) {
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if !build.config.llvm_version_check {
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return
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}
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let mut cmd = Command::new(llvm_config);
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let version = output(cmd.arg("--version"));
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if version.starts_with("3.5") || version.starts_with("3.6") ||
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version.starts_with("3.7") {
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return
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}
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panic!("\n\nbad LLVM version: {}, need >=3.5\n\n", version)
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}
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/// Compiles the `rust_test_helpers.c` library which we used in various
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/// `run-pass` test suites for ABI testing.
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pub fn test_helpers(build: &Build, target: &str) {
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let dst = build.test_helpers_out(target);
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let src = build.src.join("src/rt/rust_test_helpers.c");
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if up_to_date(&src, &dst.join("librust_test_helpers.a")) {
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return
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}
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println!("Building test helpers");
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t!(fs::create_dir_all(&dst));
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let mut cfg = gcc::Config::new();
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// We may have found various cross-compilers a little differently due to our
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// extra configuration, so inform gcc of these compilers. Note, though, that
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// on MSVC we still need gcc's detection of env vars (ugh).
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if !target.contains("msvc") {
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if let Some(ar) = build.ar(target) {
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cfg.archiver(ar);
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}
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cfg.compiler(build.cc(target));
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}
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cfg.cargo_metadata(false)
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.out_dir(&dst)
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.target(target)
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.host(&build.config.build)
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.opt_level(0)
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.debug(false)
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.file(build.src.join("src/rt/rust_test_helpers.c"))
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.compile("librust_test_helpers.a");
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}
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const OPENSSL_VERS: &'static str = "1.0.2k";
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const OPENSSL_SHA256: &'static str =
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"6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0";
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pub fn openssl(build: &Build, target: &str) {
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let out = match build.openssl_dir(target) {
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Some(dir) => dir,
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None => return,
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};
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let stamp = out.join(".stamp");
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let mut contents = String::new();
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drop(File::open(&stamp).and_then(|mut f| f.read_to_string(&mut contents)));
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if contents == OPENSSL_VERS {
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return
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}
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t!(fs::create_dir_all(&out));
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let name = format!("openssl-{}.tar.gz", OPENSSL_VERS);
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let tarball = out.join(&name);
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if !tarball.exists() {
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let tmp = tarball.with_extension("tmp");
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// originally from https://www.openssl.org/source/...
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let url = format!("https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/{}",
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name);
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let mut ok = false;
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for _ in 0..3 {
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let status = Command::new("curl")
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.arg("-o").arg(&tmp)
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.arg(&url)
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.status()
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.expect("failed to spawn curl");
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if status.success() {
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ok = true;
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break
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}
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}
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if !ok {
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panic!("failed to download openssl source")
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}
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let mut shasum = if target.contains("apple") {
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let mut cmd = Command::new("shasum");
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cmd.arg("-a").arg("256");
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cmd
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} else {
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Command::new("sha256sum")
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};
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let output = output(&mut shasum.arg(&tmp));
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let found = output.split_whitespace().next().unwrap();
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if found != OPENSSL_SHA256 {
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panic!("downloaded openssl sha256 different\n\
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expected: {}\n\
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found: {}\n", OPENSSL_SHA256, found);
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}
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t!(fs::rename(&tmp, &tarball));
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}
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let obj = out.join(format!("openssl-{}", OPENSSL_VERS));
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let dst = build.openssl_install_dir(target).unwrap();
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drop(fs::remove_dir_all(&obj));
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drop(fs::remove_dir_all(&dst));
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build.run(Command::new("tar").arg("xf").arg(&tarball).current_dir(&out));
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let mut configure = Command::new(obj.join("Configure"));
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configure.arg(format!("--prefix={}", dst.display()));
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configure.arg("no-dso");
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configure.arg("no-ssl2");
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configure.arg("no-ssl3");
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let os = match target {
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"aarch64-unknown-linux-gnu" => "linux-aarch64",
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"arm-unknown-linux-gnueabi" => "linux-armv4",
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"arm-unknown-linux-gnueabihf" => "linux-armv4",
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"armv7-unknown-linux-gnueabihf" => "linux-armv4",
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"i686-apple-darwin" => "darwin-i386-cc",
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"i686-unknown-freebsd" => "BSD-x86-elf",
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"i686-unknown-linux-gnu" => "linux-elf",
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"i686-unknown-linux-musl" => "linux-elf",
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"mips-unknown-linux-gnu" => "linux-mips32",
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"mips64-unknown-linux-gnuabi64" => "linux64-mips64",
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"mips64el-unknown-linux-gnuabi64" => "linux64-mips64",
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"mipsel-unknown-linux-gnu" => "linux-mips32",
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"powerpc-unknown-linux-gnu" => "linux-ppc",
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"powerpc64-unknown-linux-gnu" => "linux-ppc64",
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"powerpc64le-unknown-linux-gnu" => "linux-ppc64le",
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"s390x-unknown-linux-gnu" => "linux64-s390x",
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"x86_64-apple-darwin" => "darwin64-x86_64-cc",
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"x86_64-unknown-freebsd" => "BSD-x86_64",
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"x86_64-unknown-linux-gnu" => "linux-x86_64",
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"x86_64-unknown-linux-musl" => "linux-x86_64",
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"x86_64-unknown-netbsd" => "BSD-x86_64",
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_ => panic!("don't know how to configure OpenSSL for {}", target),
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};
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configure.arg(os);
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configure.env("CC", build.cc(target));
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for flag in build.cflags(target) {
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configure.arg(flag);
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}
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configure.current_dir(&obj);
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println!("Configuring openssl for {}", target);
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build.run_quiet(&mut configure);
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println!("Building openssl for {}", target);
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build.run_quiet(Command::new("make").arg("-j1").current_dir(&obj));
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println!("Installing openssl for {}", target);
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build.run_quiet(Command::new("make").arg("install").current_dir(&obj));
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let mut f = t!(File::create(&stamp));
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t!(f.write_all(OPENSSL_VERS.as_bytes()));
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}
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