1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 extern crate build_helper;
16 use build_helper::native_lib_boilerplate;
21 let target = env::var("TARGET").expect("TARGET was not set");
22 if cfg!(feature = "backtrace") &&
23 !target.contains("cloudabi") &&
24 !target.contains("emscripten") &&
25 !target.contains("msvc") &&
26 !target.contains("wasm32")
28 let _ = build_libbacktrace(&target);
31 if target.contains("linux") {
32 if target.contains("android") {
33 println!("cargo:rustc-link-lib=dl");
34 println!("cargo:rustc-link-lib=log");
35 println!("cargo:rustc-link-lib=gcc");
36 } else if !target.contains("musl") {
37 println!("cargo:rustc-link-lib=dl");
38 println!("cargo:rustc-link-lib=rt");
39 println!("cargo:rustc-link-lib=pthread");
41 } else if target.contains("freebsd") {
42 println!("cargo:rustc-link-lib=execinfo");
43 println!("cargo:rustc-link-lib=pthread");
44 } else if target.contains("netbsd") {
45 println!("cargo:rustc-link-lib=pthread");
46 println!("cargo:rustc-link-lib=rt");
47 } else if target.contains("dragonfly") || target.contains("bitrig") ||
48 target.contains("openbsd") {
49 println!("cargo:rustc-link-lib=pthread");
50 } else if target.contains("solaris") {
51 println!("cargo:rustc-link-lib=socket");
52 println!("cargo:rustc-link-lib=posix4");
53 println!("cargo:rustc-link-lib=pthread");
54 println!("cargo:rustc-link-lib=resolv");
55 } else if target.contains("apple-darwin") {
56 println!("cargo:rustc-link-lib=System");
58 // res_init and friends require -lresolv on macOS/iOS.
59 // See #41582 and http://blog.achernya.com/2013/03/os-x-has-silly-libsystem.html
60 println!("cargo:rustc-link-lib=resolv");
61 } else if target.contains("apple-ios") {
62 println!("cargo:rustc-link-lib=System");
63 println!("cargo:rustc-link-lib=objc");
64 println!("cargo:rustc-link-lib=framework=Security");
65 println!("cargo:rustc-link-lib=framework=Foundation");
66 println!("cargo:rustc-link-lib=resolv");
67 } else if target.contains("windows") {
68 println!("cargo:rustc-link-lib=advapi32");
69 println!("cargo:rustc-link-lib=ws2_32");
70 println!("cargo:rustc-link-lib=userenv");
71 } else if target.contains("fuchsia") {
72 println!("cargo:rustc-link-lib=zircon");
73 println!("cargo:rustc-link-lib=fdio");
74 } else if target.contains("cloudabi") {
75 if cfg!(feature = "backtrace") {
76 println!("cargo:rustc-link-lib=unwind");
78 println!("cargo:rustc-link-lib=c");
79 println!("cargo:rustc-link-lib=compiler_rt");
83 fn build_libbacktrace(target: &str) -> Result<(), ()> {
84 let native = native_lib_boilerplate(
85 "../libbacktrace".as_ref(),
91 let mut build = cc::Build::new();
93 .flag("-fvisibility=hidden")
94 .include("../libbacktrace")
95 .include(&native.out_dir)
96 .out_dir(&native.out_dir)
98 .file("../libbacktrace/alloc.c")
99 .file("../libbacktrace/backtrace.c")
100 .file("../libbacktrace/dwarf.c")
101 .file("../libbacktrace/fileline.c")
102 .file("../libbacktrace/posix.c")
103 .file("../libbacktrace/read.c")
104 .file("../libbacktrace/sort.c")
105 .file("../libbacktrace/state.c");
107 let any_debug = env::var("RUSTC_DEBUGINFO").unwrap_or_default() == "true" ||
108 env::var("RUSTC_DEBUGINFO_LINES").unwrap_or_default() == "true";
109 build.debug(any_debug);
111 if target.contains("darwin") {
112 build.file("../libbacktrace/macho.c");
113 } else if target.contains("windows") {
114 build.file("../libbacktrace/pecoff.c");
116 build.file("../libbacktrace/elf.c");
118 let pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH").unwrap();
119 if pointer_width == "64" {
120 build.define("BACKTRACE_ELF_SIZE", "64");
122 build.define("BACKTRACE_ELF_SIZE", "32");
126 File::create(native.out_dir.join("backtrace-supported.h")).unwrap();
127 build.define("BACKTRACE_SUPPORTED", "1");
128 build.define("BACKTRACE_USES_MALLOC", "1");
129 build.define("BACKTRACE_SUPPORTS_THREADS", "0");
130 build.define("BACKTRACE_SUPPORTS_DATA", "0");
132 File::create(native.out_dir.join("config.h")).unwrap();
133 if !target.contains("apple-ios") &&
134 !target.contains("solaris") &&
135 !target.contains("redox") &&
136 !target.contains("android") &&
137 !target.contains("haiku") {
138 build.define("HAVE_DL_ITERATE_PHDR", "1");
140 build.define("_GNU_SOURCE", "1");
141 build.define("_LARGE_FILES", "1");
143 build.compile("backtrace");