use std::borrow::Cow;
use crate::spec::{cvs, Cc, LinkerFlavor, Lld, Target, TargetOptions};
pub(crate) fn target() -> Target {
let pre_link_args = TargetOptions::link_args(
LinkerFlavor::Gnu(Cc::No, Lld::No),
&[
"-e",
"elf_entry",
"-Bstatic",
"--gc-sections",
"-z",
"text",
"-z",
"norelro",
"--no-undefined",
"--error-unresolved-symbols",
"--no-undefined-version",
"-Bsymbolic",
"--export-dynamic",
"-u",
"__rust_abort",
"-u",
"__rust_c_alloc",
"-u",
"__rust_c_dealloc",
"-u",
"__rust_print_err",
"-u",
"__rust_rwlock_rdlock",
"-u",
"__rust_rwlock_unlock",
"-u",
"__rust_rwlock_wrlock",
],
);
const EXPORT_SYMBOLS: &[&str] = &[
"sgx_entry",
"HEAP_BASE",
"HEAP_SIZE",
"RELA",
"RELACOUNT",
"ENCLAVE_SIZE",
"CFGDATA_BASE",
"DEBUG",
"EH_FRM_HDR_OFFSET",
"EH_FRM_HDR_LEN",
"EH_FRM_OFFSET",
"EH_FRM_LEN",
"TEXT_BASE",
"TEXT_SIZE",
];
let opts = TargetOptions {
os: "unknown".into(),
env: "sgx".into(),
vendor: "fortanix".into(),
abi: "fortanix".into(),
linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::Yes),
linker: Some("rust-lld".into()),
max_atomic_width: Some(64),
cpu: "x86-64".into(),
plt_by_default: false,
features: "+rdrnd,+rdseed,+lvi-cfi,+lvi-load-hardening".into(),
llvm_args: cvs!["--x86-experimental-lvi-inline-asm-hardening"],
position_independent_executables: true,
pre_link_args,
override_export_symbols: Some(EXPORT_SYMBOLS.iter().cloned().map(Cow::from).collect()),
relax_elf_relocations: true,
..Default::default()
};
Target {
llvm_target: "x86_64-elf".into(),
metadata: crate::spec::TargetMetadata {
description: Some("Fortanix ABI for 64-bit Intel SGX".into()),
tier: Some(2),
host_tools: Some(false),
std: Some(true),
},
pointer_width: 64,
data_layout:
"e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128".into(),
arch: "x86_64".into(),
options: opts,
}
}