Linux arm64 experimental support (#117)

skiko/build.gradle.kts

@@ -289,13 +289,14 @@ tasks.withType(CppCompile::class.java).configureEach {
         OS.Linux -> {
             compilerArgs.addAll(
                 listOf(
+                    "-fno-rtti",
+                    "-fno-exceptions",
                     "-fvisibility=hidden",
                     "-fvisibility-inlines-hidden",
                     "-I$jdkHome/include/linux",
                     "-I$includeDir",
                     "-DSK_BUILD_FOR_LINUX",
                     "-D_GLIBCXX_USE_CXX11_ABI=0",
-                    "-DSK_R32_SHIFT=16",
                     *buildType.clangFlags
                 )
             )
@@ -531,7 +532,7 @@ val maybeSign by project.tasks.registering {
     doLast {
         if (targetOs == OS.Linux) {
             // Linux requires additional sealing to run on wider set of platforms.
-            val sealer = "$projectDir/tools/sealer"
+            val sealer = "$projectDir/tools/sealer-${hostArch.id}"
             sealBinary(sealer, lib)
         }
         if (skiko.signHost != null) {

skiko/gradle.properties

@@ -3,7 +3,8 @@ deploy.version=0.0.0
 kotlin.native.version=1.5.10-eap-85
 
 dependencies.skija.git.commit=adf4d3aac4402a32096cf0a79ed75a0dc82c796d
-dependencies.skia.windows-x64=m91-71fcb16fc2/Skia-m91-71fcb16fc2-windows-Release-x64
-dependencies.skia.linux-x64=m91-71fcb16fc2/Skia-m91-71fcb16fc2-linux-Release-x64-ubuntu14
-dependencies.skia.macos-x64=m91-71fcb16fc2/Skia-m91-71fcb16fc2-macos-Release-x64
-dependencies.skia.macos-arm64=m91-71fcb16fc2/Skia-m91-71fcb16fc2-macos-Release-arm64
+dependencies.skia.windows-x64=m91-1a01201b77/Skia-m91-1a01201b77-windows-Release-x64
+dependencies.skia.linux-x64=m91-1a01201b77/Skia-m91-1a01201b77-linux-Release-x64-ubuntu14
+dependencies.skia.macos-x64=m91-1a01201b77/Skia-m91-1a01201b77-macos-Release-x64
+dependencies.skia.linux-arm64=m91-1a01201b77/Skia-m91-1a01201b77-linux-Release-arm64
+dependencies.skia.macos-arm64=m91-1a01201b77/Skia-m91-1a01201b77-macos-Release-arm64

skiko/src/jvmMain/cpp/linux/stubs.cc

 #include <stdio.h>
 #include <stdlib.h>
 
+#if defined(__GNUC__) && !defined(__clang__)
 extern "C" void __attribute__((weak)) __warn_memset_zero_len() {
     fprintf(stderr, "__warn_memset_zero_len called\n");
     abort();
 }
+#endif
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skiko/FPSCounter.kt

@@ -26,8 +26,8 @@ internal class FPSCounter(
 
         if ((time - lastLogTime) > periodSeconds.secondsToNanos()) {
             val average = (nanosPerSecond / times.average()).roundToInt()
-            val min = (nanosPerSecond / times.max()!!).roundToInt()
-            val max = (nanosPerSecond / times.min()!!).roundToInt()
+            val min = (nanosPerSecond / times.maxOrNull()!!).roundToInt()
+            val max = (nanosPerSecond / times.minOrNull()!!).roundToInt()
             println("[$timestamp] FPS $average ($min-$max)")
             times.clear()
             lastLogTime = time