src/librustc_back/target/fuchsia_base.rs

   1 // Copyright 2014 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.
   4 //
   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.
  10
  11 use LinkerFlavor;
  12 use target::{LinkArgs, TargetOptions};
  13 use std::default::Default;
  14
  15 pub fn opts() -> TargetOptions {
  16     let mut args = LinkArgs::new();
  17     args.insert(LinkerFlavor::Gcc, vec![
  18         // We want to be able to strip as much executable code as possible
  19         // from the linker command line, and this flag indicates to the
  20         // linker that it can avoid linking in dynamic libraries that don't
  21         // actually satisfy any symbols up to that point (as with many other
  22         // resolutions the linker does). This option only applies to all
  23         // following libraries so we're sure to pass it as one of the first
  24         // arguments.
  25         // FIXME: figure out whether these linker args are desirable
  26         //"-Wl,--as-needed".to_string(),
  27
  28         // Always enable NX protection when it is available
  29         //"-Wl,-z,noexecstack".to_string(),
  30     ]);
  31
  32     TargetOptions {
  33         dynamic_linking: true,
  34         executables: true,
  35         target_family: Some("unix".to_string()),
  36         linker_is_gnu: true,
  37         has_rpath: true,
  38         pre_link_args: args,
  39         position_independent_executables: true,
  40         has_elf_tls: true,
  41         .. Default::default()
  42     }
  43 }