110 lines
3.1 KiB
Rust
110 lines
3.1 KiB
Rust
use std::env;
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use std::path::PathBuf;
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#[cfg(not(feature = "bundled"))]
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static HEADER_PATH: &str = "wrapper.h";
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#[cfg(feature = "bundled")]
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static HEADER_PATH: &str = "bundled/inc/bearssl.h";
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#[cfg(feature = "dont-assume-size_t-equals-uintptr_t")]
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static CTYPES_PREFIX: &str = "::libc";
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#[cfg(not(feature = "dont-assume-size_t-equals-uintptr_t"))]
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static CTYPES_PREFIX: &str = "::core::ffi";
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#[cfg(not(feature = "bundled"))]
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fn bearssl_handle_linkage() {
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#[cfg(not(unix))]
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panic!("linking dynamically is currently supported in only unix targets");
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println!("cargo:rustc-link-search=/lib");
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println!("cargo:rustc-link-search=/usr/lib");
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println!("cargo:rustc-link-search=/usr/local/lib");
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println!("cargo:rustc-link-lib=dylib=bearssl");
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}
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#[cfg(feature = "bundled")]
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#[cfg(target_arch = "x86_64")]
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fn build_configure_arch_specific(build: &mut cc::Build) {
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let compiler = build.get_compiler();
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build.define("BR_64", "1");
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if compiler.is_like_gnu() || compiler.is_like_clang() {
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build.define("BR_INT128", "1");
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} else if compiler.is_like_msvc() {
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build.define("BR_UMUL128", "1");
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}
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#[cfg(target_feature = "sse2")]
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build.define("BR_SSE2", "1");
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#[cfg(target_feature = "aes")]
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build.define("BR_AES_X86NI", "1");
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}
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#[cfg(feature = "bundled")]
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#[cfg(not(target_arch = "x86_64"))]
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fn build_configure_arch_specific(build: &mut cc::Build) {
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#[cfg(target_pointer_width = 64)]
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build.define("BR_64", "1");
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}
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#[cfg(feature = "bundled")]
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#[cfg(unix)]
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fn build_configure_os_specific(build: &mut cc::Build) {
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build.define("BR_USE_UNIX_TIME", "1").define("BR_USE_URANDOM", "1");
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}
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#[cfg(feature = "bundled")]
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#[cfg(windows)]
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fn build_configure_os_specific(build: &mut cc::Build) {
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build.define("BR_USE_WIN32_RAND", "1").define("BR_USE_WIN32_TIME", "1");
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}
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#[cfg(feature = "bundled")]
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fn bearssl_handle_linkage() {
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let mut build = cc::Build::new();
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build_configure_os_specific(&mut build);
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build_configure_arch_specific(&mut build);
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build
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.include("bundled/inc")
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.files(
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std::fs::read_dir("bundled/src")
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.expect("failed to get bundled source path")
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.map(|e| e.expect("failed to read get file entry").path()),
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)
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.static_flag(true)
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.compile("bearssl");
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println!("cargo:lib_dir={}", env::var("OUT_DIR").unwrap());
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println!("cargo:rustc-link-lib=static=bearssl");
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}
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fn main() {
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bearssl_handle_linkage();
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let bindings = bindgen::builder()
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.use_core()
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.ctypes_prefix(CTYPES_PREFIX)
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.header(HEADER_PATH)
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.default_macro_constant_type(bindgen::MacroTypeVariation::Signed)
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.parse_callbacks(Box::new(bindgen::CargoCallbacks))
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.allowlist_type("(br|BR)_.*")
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.allowlist_var("(br|BR)_.*")
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.allowlist_function("(br|BR)_.*")
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.blocklist_type("__.*_t")
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.blocklist_type("size_t")
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.generate()
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.expect("Unable to generate bindings");
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
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bindings
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Couldn't write bindings!");
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}
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