src/vendor/backtrace-sys/build.rs

   1 extern crate pkg_config;
   2 extern crate cc;
   3
   4 use std::env;
   5 use std::path::PathBuf;
   6 use std::fs::File;
   7
   8 fn main() {
   9     let target = env::var("TARGET").unwrap();
  10
  11     // libbacktrace isn't used on windows
  12     if target.contains("windows") {
  13         return
  14     }
  15
  16     // no way this will ever compile for emscripten
  17     if target.contains("emscripten") {
  18         return
  19     }
  20
  21     let out_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
  22
  23     let mut build = cc::Build::new();
  24     build
  25         .include("src/libbacktrace")
  26         .include(&out_dir)
  27         .warnings(false)
  28         .file("src/libbacktrace/alloc.c")
  29         .file("src/libbacktrace/backtrace.c")
  30         .file("src/libbacktrace/dwarf.c")
  31         .file("src/libbacktrace/fileline.c")
  32         .file("src/libbacktrace/posix.c")
  33         .file("src/libbacktrace/read.c")
  34         .file("src/libbacktrace/sort.c")
  35         .file("src/libbacktrace/state.c");
  36
  37     if target.contains("darwin") {
  38         build.file("src/libbacktrace/macho.c");
  39     } else if target.contains("windows") {
  40         build.file("src/libbacktrace/pecoff.c");
  41     } else {
  42         build.flag("-fvisibility=hidden");
  43         build.file("src/libbacktrace/elf.c");
  44
  45         if target.contains("64") {
  46             build.define("BACKTRACE_ELF_SIZE", "64");
  47         } else {
  48             build.define("BACKTRACE_ELF_SIZE", "32");
  49         }
  50     }
  51
  52     if let Ok(unwind) = pkg_config::Config::new().probe("libunwind") {
  53         for path in unwind.include_paths {
  54             build.include(path);
  55         }
  56     }
  57
  58     File::create(out_dir.join("backtrace-supported.h")).unwrap();
  59     build.define("BACKTRACE_SUPPORTED", "1");
  60     build.define("BACKTRACE_USES_MALLOC", "1");
  61     build.define("BACKTRACE_SUPPORTS_THREADS", "0");
  62     build.define("BACKTRACE_SUPPORTS_DATA", "0");
  63
  64     File::create(out_dir.join("config.h")).unwrap();
  65     if !target.contains("apple-ios") {
  66         build.define("HAVE_DL_ITERATE_PHDR", "1");
  67     }
  68     build.define("_GNU_SOURCE", "1");
  69     build.define("_LARGE_FILES", "1");
  70
  71     let syms = [
  72         "backtrace_full",
  73         "backtrace_dwarf_add",
  74         "backtrace_initialize",
  75         "backtrace_pcinfo",
  76         "backtrace_syminfo",
  77         "backtrace_get_view",
  78         "backtrace_release_view",
  79         "backtrace_alloc",
  80         "backtrace_free",
  81         "backtrace_vector_finish",
  82         "backtrace_vector_grow",
  83         "backtrace_vector_release",
  84         "backtrace_close",
  85         "backtrace_open",
  86         "backtrace_print",
  87         "backtrace_simple",
  88         "backtrace_qsort",
  89         "backtrace_create_state",
  90         "backtrace_uncompress_zdebug",
  91     ];
  92     for sym in syms.iter() {
  93         build.define(sym, &format!("__rbt_{}", sym)[..]);
  94     }
  95
  96     build.compile("backtrace");
  97 }