5a4e5b0a93
* macos build * more fix * fixed clang pass build * fixes for libfuzzer link * more explanation links
93 lines
3.2 KiB
Rust
93 lines
3.2 KiB
Rust
use std::{env, fs::File, io::Write, path::Path, process::Command, str};
|
|
|
|
fn dll_extension<'a>() -> &'a str {
|
|
match env::var("CARGO_CFG_TARGET_OS").unwrap().as_str() {
|
|
"windwos" => "dll",
|
|
"macos" | "ios" => "dylib",
|
|
_ => "so",
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let out_dir = env::var_os("OUT_DIR").unwrap();
|
|
let out_dir = Path::new(&out_dir);
|
|
let src_dir = Path::new("src");
|
|
|
|
let dest_path = Path::new(&out_dir).join("clang_constants.rs");
|
|
let mut clang_constants_file = File::create(&dest_path).expect("Could not create file");
|
|
|
|
let llvm_config = env::var("LLVM_CONFIG").unwrap_or_else(|_| "llvm-config".into());
|
|
if let Ok(output) = Command::new(&llvm_config).args(&["--bindir"]).output() {
|
|
let llvm_bindir = Path::new(
|
|
str::from_utf8(&output.stdout)
|
|
.expect("Invalid llvm-config output")
|
|
.trim(),
|
|
);
|
|
|
|
write!(
|
|
&mut clang_constants_file,
|
|
"// These constants are autogenerated by build.rs
|
|
|
|
pub const CLANG_PATH: &str = {:?};
|
|
pub const CLANGXX_PATH: &str = {:?};
|
|
",
|
|
llvm_bindir.join("clang"),
|
|
llvm_bindir.join("clang++")
|
|
)
|
|
.expect("Could not write file");
|
|
|
|
println!("cargo:rerun-if-changed=src/cmplog-routines-pass.cc");
|
|
|
|
let output = Command::new(&llvm_config)
|
|
.args(&["--cxxflags"])
|
|
.output()
|
|
.expect("Failed to execute llvm-config");
|
|
let cxxflags = str::from_utf8(&output.stdout).expect("Invalid llvm-config output");
|
|
|
|
let output = Command::new(&llvm_config)
|
|
.args(&["--ldflags"])
|
|
.output()
|
|
.expect("Failed to execute llvm-config");
|
|
let ldflags = str::from_utf8(&output.stdout).expect("Invalid llvm-config output");
|
|
|
|
let cxxflags: Vec<&str> = cxxflags.trim().split_whitespace().collect();
|
|
let mut ldflags: Vec<&str> = ldflags.trim().split_whitespace().collect();
|
|
|
|
match env::var("CARGO_CFG_TARGET_OS").unwrap().as_str() {
|
|
// Needed on macos.
|
|
// Explanation at https://github.com/banach-space/llvm-tutor/blob/787b09ed31ff7f0e7bdd42ae20547d27e2991512/lib/CMakeLists.txt#L59
|
|
"macos" | "ios" => {
|
|
ldflags.push("-undefined");
|
|
ldflags.push("dynamic_lookup");
|
|
}
|
|
_ => (),
|
|
};
|
|
|
|
let _ = Command::new(llvm_bindir.join("clang++"))
|
|
.args(&cxxflags)
|
|
.arg(src_dir.join("cmplog-routines-pass.cc"))
|
|
.args(&ldflags)
|
|
.args(&["-fPIC", "-shared", "-o"])
|
|
.arg(out_dir.join(format!("cmplog-routines-pass.{}", dll_extension())))
|
|
.status()
|
|
.expect("Failed to compile cmplog-routines-pass.cc");
|
|
} else {
|
|
write!(
|
|
&mut clang_constants_file,
|
|
"// These constants are autogenerated by build.rs
|
|
|
|
pub const CLANG_PATH: &str = \"clang\";
|
|
pub const CLANGXX_PATH: &str = \"clang++\";
|
|
"
|
|
)
|
|
.expect("Could not write file");
|
|
|
|
println!(
|
|
"cargo:warning=Failed to locate the LLVM path using {}, we will not build LLVM passes",
|
|
llvm_config
|
|
);
|
|
}
|
|
|
|
println!("cargo:rerun-if-changed=build.rs");
|
|
}
|