2015-12-29 23:33:58 +01:00
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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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2016-07-24 18:47:39 +02:00
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use target::{Target, TargetResult};
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2015-12-29 23:33:58 +01:00
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2016-07-24 18:47:39 +02:00
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pub fn target() -> TargetResult {
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2016-05-01 23:41:28 +02:00
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let mut base = super::linux_musl_base::opts();
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2015-12-29 23:33:58 +01:00
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base.cpu = "pentium4".to_string();
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2016-10-04 06:45:40 +02:00
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base.max_atomic_width = Some(64);
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2015-12-29 23:33:58 +01:00
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base.pre_link_args.push("-m32".to_string());
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base.pre_link_args.push("-Wl,-melf_i386".to_string());
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2017-01-21 00:32:47 +01:00
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// The unwinder used by i686-unknown-linux-musl, the LLVM libunwind
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// implementation, apparently relies on frame pointers existing... somehow.
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// It's not clear to me why nor where this dependency is introduced, but the
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// test suite does not pass with frame pointers eliminated and it passes
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// with frame pointers present.
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//
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// If you think that this is no longer necessary, then please feel free to
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// ignore! If it still passes the test suite and the bots then sounds good
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// to me.
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//
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// This may or may not be related to this bug:
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// https://llvm.org/bugs/show_bug.cgi?id=30879
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base.eliminate_frame_pointer = false;
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2016-07-24 18:47:39 +02:00
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Ok(Target {
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2015-12-29 23:33:58 +01:00
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llvm_target: "i686-unknown-linux-musl".to_string(),
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target_endian: "little".to_string(),
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target_pointer_width: "32".to_string(),
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2016-04-18 14:38:45 +02:00
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data_layout: "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128".to_string(),
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2015-12-29 23:33:58 +01:00
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arch: "x86".to_string(),
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target_os: "linux".to_string(),
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target_env: "musl".to_string(),
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target_vendor: "unknown".to_string(),
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options: base,
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2016-07-24 18:47:39 +02:00
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})
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2015-12-29 23:33:58 +01:00
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}
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