Support for Android ARM64 on Mac (#627)

Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/main.kt

@@ -88,6 +88,7 @@ private val knownTargets = mapOf(
         "ios_sim" to "ios_sim",
         "raspberrypi" to "raspberrypi",
         "android_arm32" to "android_arm32",
+        "android_arm64" to "android_arm64",
         "mingw" to "mingw"
 )
 

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanTarget.kt

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.config.CompilerConfiguration
 
 enum class KonanTarget(val suffix: String, var enabled: Boolean = false) {
     ANDROID_ARM32("android_arm32"),
+    ANDROID_ARM64("android_arm64"),
     IPHONE("ios"),
     IPHONE_SIM("ios_sim"),
     LINUX("linux"),
@@ -40,6 +41,7 @@ class TargetManager(val config: CompilerConfiguration) {
                 KonanTarget.LINUX.enabled = true
                 KonanTarget.RASPBERRYPI.enabled = true
                 KonanTarget.ANDROID_ARM32.enabled = true
+                KonanTarget.ANDROID_ARM64.enabled = true
             }
             KonanTarget.MINGW -> {
                 KonanTarget.MINGW.enabled = true
@@ -49,6 +51,7 @@ class TargetManager(val config: CompilerConfiguration) {
                 KonanTarget.IPHONE.enabled = true
                 KonanTarget.IPHONE_SIM.enabled = true
                 KonanTarget.ANDROID_ARM32.enabled = true
+                KonanTarget.ANDROID_ARM64.enabled = true
             }
             else ->
                 error("Unknown host platform: $host")

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/LinkStage.kt

@@ -170,7 +170,7 @@ internal class LinkStage(val context: Context) {
             LinuxBasedPlatform(distribution)
         KonanTarget.MACBOOK, KonanTarget.IPHONE, KonanTarget.IPHONE_SIM ->
             MacOSBasedPlatform(distribution)
-        KonanTarget.ANDROID_ARM32 ->
+        KonanTarget.ANDROID_ARM32, KonanTarget.ANDROID_ARM64 ->
             AndroidPlatform(distribution)
         KonanTarget.MINGW ->
             MingwPlatform(distribution)

backend.native/konan.properties

@@ -149,12 +149,34 @@ dependencies.linux-android_arm32 = \
 
 quadruple.android_arm32 = arm-linux-androideabi
 entrySelector.android_arm32 =  -Wl,--defsym -Wl,main=Konan_main
-llvmLtoFlags.android_arm32 = -exported-symbol=Konan_main -emulated-tls
+llvmLtoFlags.android_arm32 = -exported-symbol=Konan_main -emulated-tls -relocation-model=pic
 llvmLtoOptFlags.android_arm32 = -O3 -function-sections
 llvmLtoNooptFlags.android_arm32 = -O1
 targetSysRoot.android_arm32 = target-sysroot-21-android_arm32
 libffiDir.android_arm32 = libffi-3.2.1-2-android_arm32
-linkerKonanFlags.android_arm32 = -lm -latomic -lstdc++
+linkerKonanFlags.android_arm32 = -lm -latomic -lstdc++ -landroid
+
+# Android ARM64, based on NDK for android-21.
+targetToolchain.osx-android_arm64 = target-toolchain-21-osx-android_arm64
+# TODO: split dependencies to host-dependent and host-independent parts.
+dependencies.osx-android_arm64 = \
+    clang-llvm-3.9.0-darwin-macos \
+    target-sysroot-21-android_arm64 \
+    target-toolchain-21-osx-android_arm64 \
+    libffi-3.2.1-2-android_arm64
+targetToolchain.linux-android_arm64 = target-toolchain-21-linux-android_arm64
+dependencies.linux-android_arm64 = \
+    clang-llvm-3.9.0-linux-x86-64 \
+    target-sysroot-21-android_arm64 \
+    target-toolchain-21-linux-android_arm64 \
+    libffi-3.2.1-2-android_arm64
+
+quadruple.android_arm64 = aarch64-linux-android
+entrySelector.android_arm64 =  -Wl,--defsym -Wl,main=Konan_main
+llvmLtoFlags.android_arm64 = -exported-symbol=Konan_main -emulated-tls -relocation-model=pic
+targetSysRoot.android_arm64 = target-sysroot-21-android_arm64
+libffiDir.android_arm64 = libffi-3.2.1-2-android_arm64
+linkerKonanFlags.android_arm64 = -lm -latomic -lstdc++ -landroid
 
 # Windows x86-64, based on mingw-w64.
 llvmVersion.mingw = 3.9.1

build.gradle

@@ -138,11 +138,19 @@ void setupCompilationFlags() {
                           "-D__ANDROID__", "-DUSE_GCC_UNWIND=1", "-DUSE_ELF_SYMBOLS=1", "-DELFSIZE=32",
                           // HACKS!
                           "-I$android_arm32SysrootDir/usr/include/c++/4.9.x",
-                          "-I$android_arm32SysrootDir/usr/include/c++/4.9.x/arm-linux-androideabi"]
-         ]
-     }
+                          "-I$android_arm32SysrootDir/usr/include/c++/4.9.x/arm-linux-androideabi"],
+                 "android_arm64":
+                        ["-target", getTargetArg("android_arm64"),
+                         "--sysroot=$android_arm64SysrootDir",
+                         "-D__ANDROID__", "-DUSE_GCC_UNWIND=1", "-DUSE_ELF_SYMBOLS=1", "-DELFSIZE=64",
+                         // HACKS!
+                         "-I$android_arm64SysrootDir/usr/include/c++/4.9.x",
+                         "-I$android_arm64SysrootDir/usr/include/c++/4.9.x/aarch64-linux-android"]
 
-     ext.targetList = ext.targetArgs.keySet() as List
+         ]
+    }
+
+    ext.targetList = ext.targetArgs.keySet() as List
 
     if (isLinux()) {
         binDir = "$gccToolchainDir/$gnuTriplet/bin"

dependencies/build.gradle

@@ -264,6 +264,8 @@ if (isLinux() || isMac()) {
 
     dependencyTask("android_arm32", SYSROOT)
     dependencyTask("android_arm32", LIBFFI)
+    dependencyTask("android_arm64", SYSROOT)
+    dependencyTask("android_arm64", LIBFFI)
 }
 
 task update(type: Copy) {