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Rebuild mingw startup objects only when necessary

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This commit is contained in:
Vadim Petrochenkov 2017-02-18 20:10:01 +03:00
parent 8f2fc9db15
commit 0c4c6fdb6c
1 changed files with 20 additions and 12 deletions
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32
src/bootstrap/compile.rs
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@ -21,7 +21,7 @@ use std::fs::{self, File};
use std::path::{Path, PathBuf};
use std::process::Command;
use build_helper::{output, mtime};
use build_helper::{output, mtime, up_to_date};
use filetime::FileTime;
use util::{exe, libdir, is_dylib, copy};
@ -132,21 +132,29 @@ pub fn build_startup_objects(build: &Build, for_compiler: &Compiler, target: &st
let compiler = Compiler::new(0, &build.config.build);
let compiler_path = build.compiler_path(&compiler);
let into = build.sysroot_libdir(for_compiler, target);
t!(fs::create_dir_all(&into));
let src_dir = &build.src.join("src/rtstartup");
let dst_dir = &build.native_dir(target).join("rtstartup");
let sysroot_dir = &build.sysroot_libdir(for_compiler, target);
t!(fs::create_dir_all(dst_dir));
t!(fs::create_dir_all(sysroot_dir));
for file in t!(fs::read_dir(build.src.join("src/rtstartup"))) {
let file = t!(file);
let mut cmd = Command::new(&compiler_path);
build.run(cmd.env("RUSTC_BOOTSTRAP", "1")
.arg("--target").arg(target)
.arg("--emit=obj")
.arg("--out-dir").arg(&into)
.arg(file.path()));
for file in &["rsbegin", "rsend"] {
let src_file = &src_dir.join(file.to_string() + ".rs");
let dst_file = &dst_dir.join(file.to_string() + ".o");
if !up_to_date(src_file, dst_file) {
let mut cmd = Command::new(&compiler_path);
build.run(cmd.env("RUSTC_BOOTSTRAP", "1")
.arg("--target").arg(target)
.arg("--emit=obj")
.arg("--out-dir").arg(dst_dir)
.arg(src_file));
}
copy(dst_file, &sysroot_dir.join(file.to_string() + ".o"));
}
for obj in ["crt2.o", "dllcrt2.o"].iter() {
copy(&compiler_file(build.cc(target), obj), &into.join(obj));
copy(&compiler_file(build.cc(target), obj), &sysroot_dir.join(obj));
}
}