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.
11 use spec::{LinkerFlavor, Target, TargetResult};
13 pub fn target() -> TargetResult {
14 let mut base = super::linux_musl_base::opts();
15 base.cpu = "pentium4".to_string();
16 base.max_atomic_width = Some(64);
17 base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-m32".to_string());
18 base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-Wl,-melf_i386".to_string());
19 base.stack_probes = true;
21 // The unwinder used by i686-unknown-linux-musl, the LLVM libunwind
22 // implementation, apparently relies on frame pointers existing... somehow.
23 // It's not clear to me why nor where this dependency is introduced, but the
24 // test suite does not pass with frame pointers eliminated and it passes
25 // with frame pointers present.
27 // If you think that this is no longer necessary, then please feel free to
28 // ignore! If it still passes the test suite and the bots then sounds good
31 // This may or may not be related to this bug:
32 // https://llvm.org/bugs/show_bug.cgi?id=30879
33 base.eliminate_frame_pointer = false;
36 llvm_target: "i686-unknown-linux-musl".to_string(),
37 target_endian: "little".to_string(),
38 target_pointer_width: "32".to_string(),
39 target_c_int_width: "32".to_string(),
40 data_layout: "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128".to_string(),
41 arch: "x86".to_string(),
42 target_os: "linux".to_string(),
43 target_env: "musl".to_string(),
44 target_vendor: "unknown".to_string(),
45 linker_flavor: LinkerFlavor::Gcc,