1 files changed, 84 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/x86_64_fortanix_unknown_sgx.rs b/compiler/rustc_target/src/spec/x86_64_fortanix_unknown_sgx.rs
new file mode 100644
index 000000000..9d597ea2e
--- /dev/null
+++ b/compiler/rustc_target/src/spec/x86_64_fortanix_unknown_sgx.rs
@@ -0,0 +1,84 @@
+use std::borrow::Cow;
+
+use crate::spec::cvs;
+
+use super::{LinkerFlavor, LldFlavor, Target, TargetOptions};
+
+pub fn target() -> Target {
+    let pre_link_args = TargetOptions::link_args(
+        LinkerFlavor::Ld,
+        &[
+            "-e",
+            "elf_entry",
+            "-Bstatic",
+            "--gc-sections",
+            "-z",
+            "text",
+            "-z",
+            "norelro",
+            "--no-undefined",
+            "--error-unresolved-symbols",
+            "--no-undefined-version",
+            "-Bsymbolic",
+            "--export-dynamic",
+            // The following symbols are needed by libunwind, which is linked after
+            // libstd. Make sure they're included in the link.
+            "-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::Lld(LldFlavor::Ld),
+        linker: Some("rust-lld".into()),
+        max_atomic_width: Some(64),
+        cpu: "x86-64".into(),
+        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(),
+        pointer_width: 64,
+        data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+            .into(),
+        arch: "x86_64".into(),
+        options: opts,
+    }
+}