Add support for Apple tvOS builds (#848)

* Add Apple tvOS build option

Signed-off-by: Mateusz Szczygieł <[email protected]>

* Add script for testing tvOS build

---------

Signed-off-by: Mateusz Szczygieł <[email protected]>
Co-authored-by: Justin Smith <[email protected]>

Author: matszczygiel

.github/workflows/cross.yml

@@ -156,6 +156,27 @@ jobs:
       - name: iOS Simulator Runner
         run: ./scripts/ci/ios-simulator-runner.sh
 
+  aws-lc-rs-tvos-aarch64:
+    if: github.repository_owner == 'aws'
+    name: tvOS aarch64 cross-platform build
+    runs-on: macos-latest
+    env:
+      TVOS_FORCE_TEST: 1
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: "recursive"
+      - run: |
+          brew install llvm
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: nightly
+          components: rust-src
+      - name: Install bash, coreutils
+        run: brew install bash coreutils
+      - name: tvOS Simulator Runner
+        run: ./scripts/ci/tvos-simulator-runner.sh
+
   aws-lc-rs-ios-x86_64:
     if: github.repository_owner == 'aws'
     name: iOS x86-64 cross-platform build

aws-lc-fips-sys/builder/cmake_builder.rs

@@ -249,6 +249,14 @@ impl CmakeBuilder {
                 cmake_cfg.define("CMAKE_SYSTEM_NAME", "Darwin");
                 cmake_cfg.define("CMAKE_OSX_SYSROOT", "macosx");
             }
+            if target_os().trim() == "tvos" {
+                cmake_cfg.define("CMAKE_SYSTEM_NAME", "tvOS");
+                if effective_target().ends_with("-tvos-sim") || target_arch() == "x86_64" {
+                    cmake_cfg.define("CMAKE_OSX_SYSROOT", "appletvsimulator");
+                } else {
+                    cmake_cfg.define("CMAKE_OSX_SYSROOT", "appletvos");
+                }
+            }
         }
 
         if target_os() == "windows" {

aws-lc-fips-sys/builder/main.rs

@@ -744,6 +744,7 @@ fn invoke_external_bindgen(
     if let Some(prefix_str) = &options.build_prefix {
         sym_prefix = if target_os().to_lowercase() == "macos"
             || target_os().to_lowercase() == "ios"
+            || target_os().to_lowercase() == "tvos"
             || (target_os().to_lowercase() == "windows" && target_arch() == "x86")
         {
             format!("_{prefix_str}_")

aws-lc-sys/builder/cmake_builder.rs

@@ -200,6 +200,14 @@ impl CmakeBuilder {
                 cmake_cfg.define("CMAKE_SYSTEM_NAME", "Darwin");
                 cmake_cfg.define("CMAKE_OSX_SYSROOT", "macosx");
             }
+            if target_os().trim() == "tvos" {
+                cmake_cfg.define("CMAKE_SYSTEM_NAME", "tvOS");
+                if effective_target().ends_with("-tvos-sim") || target_arch() == "x86_64" {
+                    cmake_cfg.define("CMAKE_OSX_SYSROOT", "appletvsimulator");
+                } else {
+                    cmake_cfg.define("CMAKE_OSX_SYSROOT", "appletvos");
+                }
+            }
         }
 
         if target_os() == "android" {

aws-lc-sys/builder/main.rs

@@ -942,6 +942,7 @@ fn invoke_external_bindgen(
     if let Some(prefix_str) = prefix {
         sym_prefix = if target_os().to_lowercase() == "macos"
             || target_os().to_lowercase() == "ios"
+            || target_os().to_lowercase() == "tvos"
             || (target_os().to_lowercase() == "windows" && target_arch() == "x86")
         {
             format!("_{prefix_str}_")