add aarch64-unknown-teeos target

Signed-off-by: 袁浩 <yuanhao34@huawei.com>

3 files changed, 48 insertions, 0 deletions

diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_teeos.rs b/compiler/rustc_target/src/spec/aarch64_unknown_teeos.rs
new file mode 100644
index 00000000000..64a7dc681c8
--- /dev/null
+++ b/compiler/rustc_target/src/spec/aarch64_unknown_teeos.rs
@@ -0,0 +1,16 @@
+use crate::spec::Target;
+
+pub fn target() -> Target {
+    let mut base = super::teeos_base::opts();
+    base.features = "+strict-align,+neon,+fp-armv8".into();
+    base.max_atomic_width = Some(128);
+    base.linker = Some("aarch64-linux-gnu-ld".into());
+
+    Target {
+        llvm_target: "aarch64-unknown-none".into(),
+        pointer_width: 64,
+        data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".into(),
+        arch: "aarch64".into(),
+        options: base,
+    }
+}
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 7114c243ea1..0229fa06e85 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -83,6 +83,7 @@ mod openbsd_base;
 mod redox_base;
 mod solaris_base;
 mod solid_base;
+mod teeos_base;
 mod thumb_base;
 mod uefi_msvc_base;
 mod unikraft_linux_musl_base;
@@ -1492,6 +1493,8 @@ supported_targets! {
 
     ("x86_64-unknown-none", x86_64_unknown_none),
 
+    ("aarch64-unknown-teeos", aarch64_unknown_teeos),
+
     ("mips64-openwrt-linux-musl", mips64_openwrt_linux_musl),
 
     ("aarch64-unknown-nto-qnx710", aarch64_unknown_nto_qnx_710),
diff --git a/compiler/rustc_target/src/spec/teeos_base.rs b/compiler/rustc_target/src/spec/teeos_base.rs
new file mode 100644
index 00000000000..1bc71bab016
--- /dev/null
+++ b/compiler/rustc_target/src/spec/teeos_base.rs
@@ -0,0 +1,29 @@
+use super::{Cc, LinkerFlavor, Lld, PanicStrategy};
+use crate::spec::{RelroLevel, TargetOptions};
+
+pub fn opts() -> TargetOptions {
+    let lld_args = &["-zmax-page-size=4096", "-znow", "-ztext", "--execute-only"];
+    let cc_args = &["-Wl,-zmax-page-size=4096", "-Wl,-znow", "-Wl,-ztext", "-mexecute-only"];
+
+    let mut pre_link_args = TargetOptions::link_args(LinkerFlavor::Gnu(Cc::No, Lld::No), lld_args);
+    super::add_link_args(&mut pre_link_args, LinkerFlavor::Gnu(Cc::Yes, Lld::No), cc_args);
+
+    TargetOptions {
+        os: "teeos".into(),
+        vendor: "unknown".into(),
+        dynamic_linking: true,
+        linker_flavor: LinkerFlavor::Gnu(Cc::Yes, Lld::No),
+        // rpath hardcodes -Wl, so it can't be used together with ld.lld.
+        // C TAs also don't support rpath, so this is fine.
+        has_rpath: false,
+        // Note: Setting has_thread_local to true causes an error when
+        // loading / dyn-linking the TA
+        has_thread_local: false,
+        position_independent_executables: true,
+        relro_level: RelroLevel::Full,
+        crt_static_respected: true,
+        pre_link_args,
+        panic_strategy: PanicStrategy::Abort,
+        ..Default::default()
+    }
+}