1 files changed, 113 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/apple_sdk_base.rs b/compiler/rustc_target/src/spec/apple_sdk_base.rs
new file mode 100644
index 000000000..d77558f0f
--- /dev/null
+++ b/compiler/rustc_target/src/spec/apple_sdk_base.rs
@@ -0,0 +1,113 @@
+use crate::spec::{cvs, LinkArgs, LinkerFlavor, LldFlavor, TargetOptions};
+use std::borrow::Cow;
+
+use Arch::*;
+#[allow(non_camel_case_types)]
+#[derive(Copy, Clone)]
+pub enum Arch {
+    Armv7,
+    Armv7k,
+    Armv7s,
+    Arm64,
+    Arm64_32,
+    I386,
+    X86_64,
+    X86_64_macabi,
+    Arm64_macabi,
+    Arm64_sim,
+}
+
+fn target_arch_name(arch: Arch) -> &'static str {
+    match arch {
+        Armv7 => "armv7",
+        Armv7k => "armv7k",
+        Armv7s => "armv7s",
+        Arm64 | Arm64_macabi | Arm64_sim => "arm64",
+        Arm64_32 => "arm64_32",
+        I386 => "i386",
+        X86_64 | X86_64_macabi => "x86_64",
+    }
+}
+
+fn target_abi(arch: Arch) -> &'static str {
+    match arch {
+        Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | X86_64 => "",
+        X86_64_macabi | Arm64_macabi => "macabi",
+        Arm64_sim => "sim",
+    }
+}
+
+fn target_cpu(arch: Arch) -> &'static str {
+    match arch {
+        Armv7 => "cortex-a8", // iOS7 is supported on iPhone 4 and higher
+        Armv7k => "cortex-a8",
+        Armv7s => "cortex-a9",
+        Arm64 => "apple-a7",
+        Arm64_32 => "apple-s4",
+        I386 => "yonah",
+        X86_64 => "core2",
+        X86_64_macabi => "core2",
+        Arm64_macabi => "apple-a12",
+        Arm64_sim => "apple-a12",
+    }
+}
+
+fn link_env_remove(arch: Arch) -> Cow<'static, [Cow<'static, str>]> {
+    match arch {
+        Armv7 | Armv7k | Armv7s | Arm64 | Arm64_32 | I386 | X86_64 | Arm64_sim => {
+            cvs!["MACOSX_DEPLOYMENT_TARGET"]
+        }
+        X86_64_macabi | Arm64_macabi => cvs!["IPHONEOS_DEPLOYMENT_TARGET"],
+    }
+}
+
+fn pre_link_args(os: &'static str, arch: Arch) -> LinkArgs {
+    let mut args = LinkArgs::new();
+
+    let target_abi = target_abi(arch);
+
+    let platform_name = match target_abi {
+        "sim" => format!("{}-simulator", os),
+        "macabi" => "mac-catalyst".to_string(),
+        _ => os.to_string(),
+    };
+
+    let platform_version = match os.as_ref() {
+        "ios" => super::apple_base::ios_lld_platform_version(),
+        "tvos" => super::apple_base::tvos_lld_platform_version(),
+        "watchos" => super::apple_base::watchos_lld_platform_version(),
+        _ => unreachable!(),
+    };
+
+    let arch_str = target_arch_name(arch);
+
+    if target_abi != "macabi" {
+        args.insert(LinkerFlavor::Gcc, vec!["-arch".into(), arch_str.into()]);
+    }
+
+    args.insert(
+        LinkerFlavor::Lld(LldFlavor::Ld64),
+        vec![
+            "-arch".into(),
+            arch_str.into(),
+            "-platform_version".into(),
+            platform_name.into(),
+            platform_version.clone().into(),
+            platform_version.into(),
+        ],
+    );
+
+    args
+}
+
+pub fn opts(os: &'static str, arch: Arch) -> TargetOptions {
+    TargetOptions {
+        abi: target_abi(arch).into(),
+        cpu: target_cpu(arch).into(),
+        dynamic_linking: false,
+        pre_link_args: pre_link_args(os, arch),
+        link_env_remove: link_env_remove(arch),
+        has_thread_local: false,
+        ..super::apple_base::opts(os)
+    }
+}