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// Copyright 2012-2016 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::{Target, TargetResult, RelroLevel};

pub fn target() -> TargetResult {
    let mut base = super::linux_base::opts();
    base.cpu = "ppc64".to_string();
    base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-m64".to_string());
    base.max_atomic_width = Some(64);

    // ld.so in at least RHEL6 on ppc64 has a bug related to BIND_NOW, so only enable partial RELRO
    // for now. https://github.com/rust-lang/rust/pull/43170#issuecomment-315411474
    base.relro_level = RelroLevel::Partial;

    // see #36994
    base.exe_allocation_crate = None;

    Ok(Target {
        llvm_target: "powerpc64-unknown-linux-gnu".to_string(),
        target_endian: "big".to_string(),
        target_pointer_width: "64".to_string(),
        target_c_int_width: "32".to_string(),
        data_layout: "E-m:e-i64:64-n32:64".to_string(),
        arch: "powerpc64".to_string(),
        target_os: "linux".to_string(),
        target_env: "gnu".to_string(),
        target_vendor: "unknown".to_string(),
        linker_flavor: LinkerFlavor::Gcc,
        options: base,
    })
}