-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
#![deny(warnings)]
-extern crate build_helper;
extern crate cc;
-use build_helper::native_lib_boilerplate;
use std::env;
-use std::fs::File;
fn main() {
let target = env::var("TARGET").expect("TARGET was not set");
- if cfg!(feature = "backtrace") &&
- !target.contains("cloudabi") &&
- !target.contains("emscripten") &&
- !target.contains("msvc") &&
- !target.contains("wasm32")
- {
- let _ = build_libbacktrace(&target);
- }
-
if target.contains("linux") {
if target.contains("android") {
println!("cargo:rustc-link-lib=dl");
println!("cargo:rustc-link-lib=compiler_rt");
}
}
-
-fn build_libbacktrace(target: &str) -> Result<(), ()> {
- let native = native_lib_boilerplate(
- "../libbacktrace".as_ref(),
- "libbacktrace",
- "backtrace",
- "",
- )?;
-
- let mut build = cc::Build::new();
- build
- .flag("-fvisibility=hidden")
- .include("../libbacktrace")
- .include(&native.out_dir)
- .out_dir(&native.out_dir)
- .warnings(false)
- .file("../libbacktrace/alloc.c")
- .file("../libbacktrace/backtrace.c")
- .file("../libbacktrace/dwarf.c")
- .file("../libbacktrace/fileline.c")
- .file("../libbacktrace/posix.c")
- .file("../libbacktrace/read.c")
- .file("../libbacktrace/sort.c")
- .file("../libbacktrace/state.c");
-
- let any_debug = env::var("RUSTC_DEBUGINFO").unwrap_or_default() == "true" ||
- env::var("RUSTC_DEBUGINFO_LINES").unwrap_or_default() == "true";
- build.debug(any_debug);
-
- if target.contains("darwin") {
- build.file("../libbacktrace/macho.c");
- } else if target.contains("windows") {
- build.file("../libbacktrace/pecoff.c");
- } else {
- build.file("../libbacktrace/elf.c");
-
- let pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH").unwrap();
- if pointer_width == "64" {
- build.define("BACKTRACE_ELF_SIZE", "64");
- } else {
- build.define("BACKTRACE_ELF_SIZE", "32");
- }
- }
-
- File::create(native.out_dir.join("backtrace-supported.h")).unwrap();
- build.define("BACKTRACE_SUPPORTED", "1");
- build.define("BACKTRACE_USES_MALLOC", "1");
- build.define("BACKTRACE_SUPPORTS_THREADS", "0");
- build.define("BACKTRACE_SUPPORTS_DATA", "0");
-
- File::create(native.out_dir.join("config.h")).unwrap();
- if !target.contains("apple-ios") &&
- !target.contains("solaris") &&
- !target.contains("redox") &&
- !target.contains("android") &&
- !target.contains("haiku") {
- build.define("HAVE_DL_ITERATE_PHDR", "1");
- }
- build.define("_GNU_SOURCE", "1");
- build.define("_LARGE_FILES", "1");
-
- build.compile("backtrace");
- Ok(())
-}