New upstream version 1.26.2+dfsg1

[rustc.git] / src / librustc_back / target / openbsd_base.rs

// Copyright 2014-2015 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.

use LinkerFlavor;
use target::{LinkArgs, TargetOptions, RelroLevel};
use std::default::Default;

pub fn opts() -> TargetOptions {
    let mut args = LinkArgs::new();
    args.insert(LinkerFlavor::Gcc, vec![
        // GNU-style linkers will use this to omit linking to libraries
        // which don't actually fulfill any relocations, but only for
        // libraries which follow this flag.  Thus, use it before
        // specifying libraries to link to.
        "-Wl,--as-needed".to_string(),

        // Always enable NX protection when it is available
        "-Wl,-z,noexecstack".to_string(),
    ]);

    TargetOptions {
        dynamic_linking: true,
        executables: true,
        target_family: Some("unix".to_string()),
        linker_is_gnu: true,
        has_rpath: true,
        abi_return_struct_as_int: true,
        pre_link_args: args,
        position_independent_executables: true,
        eliminate_frame_pointer: false, // FIXME 43575
        relro_level: RelroLevel::Full,
        .. Default::default()
    }
}