compiler-builtins-zynq/compiler-rt/compiler-rt-cdylib/build.rs

89 lines
1.9 KiB
Rust

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