const CMAKE_PARAMS_ANDROID_NDK_OLD_GCC: &[(&str, &[(&str, &str)])] = &[
(
"aarch64",
&[("ANDROID_TOOLCHAIN_NAME", "aarch64-linux-android-4.9")],
),
(
"arm",
&[("ANDROID_TOOLCHAIN_NAME", "arm-linux-androideabi-4.9")],
),
(
"x86",
&[("ANDROID_TOOLCHAIN_NAME", "x86-linux-android-4.9")],
),
(
"x86_64",
&[("ANDROID_TOOLCHAIN_NAME", "x86_64-linux-android-4.9")],
),
];
const CMAKE_PARAMS_ANDROID_NDK: &[(&str, &[(&str, &str)])] = &[
("aarch64", &[("ANDROID_ABI", "arm64-v8a")]),
("arm", &[("ANDROID_ABI", "armeabi-v7a")]),
("x86", &[("ANDROID_ABI", "x86")]),
("x86_64", &[("ANDROID_ABI", "x86_64")]),
];
const CMAKE_PARAMS_IOS: &[(&str, &[(&str, &str)])] = &[
(
"aarch64",
&[
("CMAKE_OSX_ARCHITECTURES", "arm64"),
("CMAKE_OSX_SYSROOT", "iphoneos"),
],
),
(
"x86_64",
&[
("CMAKE_OSX_ARCHITECTURES", "x86_64"),
("CMAKE_OSX_SYSROOT", "iphonesimulator"),
],
),
];
fn get_boringssl_platform_output_path() -> String {
if cfg!(windows) {
let debug_env_var = std::env::var("DEBUG").expect("DEBUG variable not defined in env");
let deb_info = match &debug_env_var[..] {
"false" => false,
"true" => true,
unknown => panic!("Unknown DEBUG={} env var.", unknown),
};
let opt_env_var =
std::env::var("OPT_LEVEL").expect("OPT_LEVEL variable not defined in env");
let subdir = match &opt_env_var[..] {
"0" => "Debug",
"1" | "2" | "3" => {
if deb_info {
"RelWithDebInfo"
} else {
"Release"
}
}
"s" | "z" => "MinSizeRel",
unknown => panic!("Unknown OPT_LEVEL={} env var.", unknown),
};
subdir.to_string()
} else {
"".to_string()
}
}
fn get_boringssl_cmake_config() -> cmake::Config {
let arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap();
let os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
let pwd = std::env::current_dir().unwrap();
let mut boringssl_cmake = cmake::Config::new("deps/boringssl");
match os.as_ref() {
"android" => {
let cmake_params_android = if cfg!(feature = "ndk-old-gcc") {
CMAKE_PARAMS_ANDROID_NDK_OLD_GCC
} else {
CMAKE_PARAMS_ANDROID_NDK
};
let android_ndk_home = std::env::var("ANDROID_NDK_HOME")
.expect("Please set ANDROID_NDK_HOME for Android build");
let android_ndk_home = std::path::Path::new(&android_ndk_home);
for (android_arch, params) in cmake_params_android {
if *android_arch == arch {
for (name, value) in *params {
eprintln!("android arch={} add {}={}", arch, name, value);
boringssl_cmake.define(name, value);
}
}
}
let toolchain_file = android_ndk_home.join("build/cmake/android.toolchain.cmake");
let toolchain_file = toolchain_file.to_str().unwrap();
eprintln!("android toolchain={}", toolchain_file);
boringssl_cmake.define("CMAKE_TOOLCHAIN_FILE", toolchain_file);
boringssl_cmake.define("ANDROID_NATIVE_API_LEVEL", "21");
boringssl_cmake.define("ANDROID_STL", "c++_shared");
boringssl_cmake
}
"ios" => {
for (ios_arch, params) in CMAKE_PARAMS_IOS {
if *ios_arch == arch {
for (name, value) in *params {
eprintln!("ios arch={} add {}={}", arch, name, value);
boringssl_cmake.define(name, value);
}
}
}
let bitcode_cflag = "-fembed-bitcode";
let target_cflag = if arch == "x86_64" {
"-target x86_64-apple-ios-simulator"
} else {
""
};
let cflag = format!("{} {}", bitcode_cflag, target_cflag);
boringssl_cmake.define("CMAKE_ASM_FLAGS", &cflag);
boringssl_cmake.cflag(&cflag);
boringssl_cmake
}
_ => {
if arch == "x86" && os != "windows" {
boringssl_cmake.define(
"CMAKE_TOOLCHAIN_FILE",
pwd.join("deps/boringssl/src/util/32-bit-toolchain.cmake")
.as_os_str(),
);
}
boringssl_cmake
}
}
}
fn main() {
use std::env;
use std::path::PathBuf;
let mut cfg = get_boringssl_cmake_config();
if cfg!(feature = "fuzzing") {
cfg.cxxflag("-DBORINGSSL_UNSAFE_DETERMINISTIC_MODE")
.cxxflag("-DBORINGSSL_UNSAFE_FUZZER_MODE");
}
let bssl_dir = cfg.build_target("bssl").build().display().to_string();
let build_path = get_boringssl_platform_output_path();
let build_dir = format!("{}/build/{}", bssl_dir, build_path);
println!("cargo:rustc-link-search=native={}", build_dir);
println!("cargo:rustc-link-lib=static=crypto");
println!("cargo:rustc-link-lib=static=ssl");
if cfg!(target_os = "macos") {
println!("cargo:rustc-cdylib-link-arg=-Wl,-undefined,dynamic_lookup");
}
let include_path = PathBuf::from("deps/boringssl/src/include");
let mut builder = bindgen::Builder::default()
.derive_copy(true)
.derive_debug(true)
.derive_default(true)
.derive_eq(true)
.default_enum_style(bindgen::EnumVariation::NewType { is_bitfield: false })
.default_macro_constant_type(bindgen::MacroTypeVariation::Signed)
.generate_comments(true)
.fit_macro_constants(false)
.size_t_is_usize(true)
.layout_tests(true)
.prepend_enum_name(true)
.rustfmt_bindings(true)
.clang_args(&["-I", include_path.to_str().unwrap()]);
let headers = [
"aes.h",
"asn1_mac.h",
"asn1t.h",
"blake2.h",
"blowfish.h",
"cast.h",
"chacha.h",
"cmac.h",
"cpu.h",
"curve25519.h",
"des.h",
"dtls1.h",
"hkdf.h",
"hrss.h",
"md4.h",
"md5.h",
"obj_mac.h",
"objects.h",
"opensslv.h",
"ossl_typ.h",
"pkcs12.h",
"poly1305.h",
"rand.h",
"rc4.h",
"ripemd.h",
"siphash.h",
"srtp.h",
"trust_token.h",
"x509v3.h",
];
for header in &headers {
builder = builder.header(include_path.join("openssl").join(header).to_str().unwrap());
}
let bindings = builder.generate().expect("Unable to generate bindings");
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
bindings
.write_to_file(out_path.join("bindings.rs"))
.expect("Couldn't write bindings!");
}