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