1 // This defines the amd64 target for the Linux Kernel. See the linux-kernel-base module for
2 // generic Linux kernel options.
4 use crate::spec::{CodeModel, LinkerFlavor, Target};
6 pub fn target() -> Target {
7 let mut base = super::linux_kernel_base::opts();
8 base.cpu = "x86-64".into();
9 base.max_atomic_width = Some(64);
11 "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-3dnow,-3dnowa,-avx,-avx2,+soft-float".into();
12 base.code_model = Some(CodeModel::Kernel);
13 base.pre_link_args.entry(LinkerFlavor::Gcc).or_default().push("-m64".into());
16 // FIXME: Some dispute, the linux-on-clang folks think this should use
17 // "Linux". We disagree because running *on* Linux is nothing like
18 // running *as" linux, and historically the "os" component as has always
19 // been used to mean the "on" part.
20 llvm_target: "x86_64-unknown-none-elf".into(),
22 data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
24 arch: "x86_64".into(),