1 // Copyright 2014-2015 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.
11 use spec::{LinkArgs, LinkerFlavor, TargetOptions, RelroLevel};
12 use std::default::Default;
14 pub fn opts() -> TargetOptions {
15 let mut args = LinkArgs::new();
16 args.insert(LinkerFlavor::Gcc, vec![
17 // GNU-style linkers will use this to omit linking to libraries
18 // which don't actually fulfill any relocations, but only for
19 // libraries which follow this flag. Thus, use it before
20 // specifying libraries to link to.
21 "-Wl,--as-needed".to_string(),
23 // Always enable NX protection when it is available
24 "-Wl,-z,noexecstack".to_string(),
28 dynamic_linking: true,
30 target_family: Some("unix".to_string()),
32 no_default_libraries: false,
35 position_independent_executables: true,
36 relro_level: RelroLevel::Full,