1 /* Copyright 2021 The BoringSSL Authors
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
14 */
15
16 use std::env;
17 use std::path::Path;
18 use std::path::PathBuf;
19
20 // Keep in sync with the list in include/openssl/opensslconf.h
21 const OSSL_CONF_DEFINES: &[&str] = &[
22 "OPENSSL_NO_ASYNC",
23 "OPENSSL_NO_BF",
24 "OPENSSL_NO_BLAKE2",
25 "OPENSSL_NO_BUF_FREELISTS",
26 "OPENSSL_NO_CAMELLIA",
27 "OPENSSL_NO_CAPIENG",
28 "OPENSSL_NO_CAST",
29 "OPENSSL_NO_CMS",
30 "OPENSSL_NO_COMP",
31 "OPENSSL_NO_CT",
32 "OPENSSL_NO_DANE",
33 "OPENSSL_NO_DEPRECATED",
34 "OPENSSL_NO_DGRAM",
35 "OPENSSL_NO_DYNAMIC_ENGINE",
36 "OPENSSL_NO_EC_NISTP_64_GCC_128",
37 "OPENSSL_NO_EC2M",
38 "OPENSSL_NO_EGD",
39 "OPENSSL_NO_ENGINE",
40 "OPENSSL_NO_GMP",
41 "OPENSSL_NO_GOST",
42 "OPENSSL_NO_HEARTBEATS",
43 "OPENSSL_NO_HW",
44 "OPENSSL_NO_IDEA",
45 "OPENSSL_NO_JPAKE",
46 "OPENSSL_NO_KRB5",
47 "OPENSSL_NO_MD2",
48 "OPENSSL_NO_MDC2",
49 "OPENSSL_NO_OCB",
50 "OPENSSL_NO_OCSP",
51 "OPENSSL_NO_RC2",
52 "OPENSSL_NO_RC5",
53 "OPENSSL_NO_RFC3779",
54 "OPENSSL_NO_RIPEMD",
55 "OPENSSL_NO_RMD160",
56 "OPENSSL_NO_SCTP",
57 "OPENSSL_NO_SEED",
58 "OPENSSL_NO_SM2",
59 "OPENSSL_NO_SM3",
60 "OPENSSL_NO_SM4",
61 "OPENSSL_NO_SRP",
62 "OPENSSL_NO_SSL_TRACE",
63 "OPENSSL_NO_SSL2",
64 "OPENSSL_NO_SSL3",
65 "OPENSSL_NO_SSL3_METHOD",
66 "OPENSSL_NO_STATIC_ENGINE",
67 "OPENSSL_NO_STORE",
68 "OPENSSL_NO_WHIRLPOOL",
69 ];
70
get_bssl_build_dir() -> PathBuf71 fn get_bssl_build_dir() -> PathBuf {
72 println!("cargo:rerun-if-env-changed=BORINGSSL_BUILD_DIR");
73 if let Some(build_dir) = env::var_os("BORINGSSL_BUILD_DIR") {
74 return PathBuf::from(build_dir);
75 }
76
77 let crate_dir = env::var_os("CARGO_MANIFEST_DIR").unwrap();
78 return Path::new(&crate_dir).join("../../build");
79 }
80
get_cpp_runtime_lib() -> Option<String>81 fn get_cpp_runtime_lib() -> Option<String> {
82 println!("cargo:rerun-if-env-changed=BORINGSSL_RUST_CPPLIB");
83
84 if let Ok(cpp_lib) = env::var("BORINGSSL_RUST_CPPLIB") {
85 return Some(cpp_lib);
86 }
87
88 if env::var_os("CARGO_CFG_UNIX").is_some() {
89 match env::var("CARGO_CFG_TARGET_OS").unwrap().as_ref() {
90 "macos" => Some("c++".into()),
91 _ => Some("stdc++".into()),
92 }
93 } else {
94 None
95 }
96 }
97
main()98 fn main() {
99 let bssl_build_dir = get_bssl_build_dir();
100 let bssl_sys_build_dir = bssl_build_dir.join("rust/bssl-sys");
101 let target = env::var("TARGET").unwrap();
102 let out_dir = env::var("OUT_DIR").unwrap();
103 let bindgen_out_file = Path::new(&out_dir).join("bindgen.rs");
104
105 // Find the bindgen generated target platform bindings file and put it into
106 // OUT_DIR/bindgen.rs.
107 let bindgen_source_file = bssl_sys_build_dir.join(format!("wrapper_{}.rs", target));
108 std::fs::copy(&bindgen_source_file, &bindgen_out_file).expect(&format!(
109 "Could not copy bindings from '{}' to '{}'",
110 bindgen_source_file.display(),
111 bindgen_out_file.display()
112 ));
113 println!("cargo:rerun-if-changed={}", bindgen_source_file.display());
114
115 // Statically link libraries.
116 println!(
117 "cargo:rustc-link-search=native={}",
118 bssl_build_dir.join("crypto").display()
119 );
120 println!("cargo:rustc-link-lib=static=crypto");
121
122 println!(
123 "cargo:rustc-link-search=native={}",
124 bssl_build_dir.join("ssl").display()
125 );
126 println!("cargo:rustc-link-lib=static=ssl");
127
128 println!(
129 "cargo:rustc-link-search=native={}",
130 bssl_sys_build_dir.display()
131 );
132 println!("cargo:rustc-link-lib=static=rust_wrapper");
133
134 if let Some(cpp_lib) = get_cpp_runtime_lib() {
135 println!("cargo:rustc-link-lib={}", cpp_lib);
136 }
137
138 println!("cargo:conf={}", OSSL_CONF_DEFINES.join(","));
139 }
140