91 lines
2.0 KiB
Rust
91 lines
2.0 KiB
Rust
extern crate gcc;
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use std::env;
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use std::path::Path;
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use std::process::Command;
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struct Sources {
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files: Vec<&'static str>,
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}
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impl Sources {
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fn new() -> Sources {
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Sources { files: Vec::new() }
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}
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fn extend(&mut self, sources: &[&'static str]) {
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self.files.extend(sources);
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}
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}
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fn main() {
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if !Path::new("compiler-rt/.git").exists() {
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let _ = Command::new("git").args(&["submodule", "update", "--init"])
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.status();
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}
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let target = env::var("TARGET").expect("TARGET was not set");
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let cfg = &mut gcc::Config::new();
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if target.contains("msvc") {
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cfg.define("__func__", Some("__FUNCTION__"));
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} else {
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cfg.flag("-fno-builtin");
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cfg.flag("-fomit-frame-pointer");
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cfg.flag("-ffreestanding");
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}
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let mut sources = Sources::new();
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sources.extend(&[
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"muldi3.c",
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"mulosi4.c",
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"mulodi4.c",
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"divsi3.c",
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"divdi3.c",
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"modsi3.c",
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"moddi3.c",
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"divmodsi4.c",
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"divmoddi4.c",
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"ashldi3.c",
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"ashrdi3.c",
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"lshrdi3.c",
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"udivdi3.c",
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"umoddi3.c",
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"udivmoddi4.c",
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"udivsi3.c",
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"umodsi3.c",
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"udivmodsi4.c",
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"adddf3.c",
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"addsf3.c",
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"powidf2.c",
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"powisf2.c",
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"subdf3.c",
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"subsf3.c",
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// 128 bit integers
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"lshrti3.c",
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"modti3.c",
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"muloti4.c",
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"multi3.c",
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"udivmodti4.c",
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"udivti3.c",
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"umodti3.c",
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"ashlti3.c",
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"ashrti3.c",
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"divti3.c",
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]);
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let builtins_dir = Path::new("compiler-rt/lib/builtins");
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for src in sources.files.iter() {
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cfg.file(builtins_dir.join(src));
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}
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cfg.compile("libcompiler-rt.a");
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println!("cargo:rerun-if-changed=build.rs");
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for source in sources.files.iter() {
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println!("cargo:rerun-if-changed={}", builtins_dir.join(source).display());
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}
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}
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