gradle-plugin: Support user jvm args

build.gradle

@@ -287,6 +287,7 @@ targetList.each { target ->
     targetDefFiles(target).forEach{
         defFile ->
             def taskName = defFileToTaskName(target, defFile.name)
+            def jvmArgs = project.findProperty("platfromLibsJvmArgs") ?: "-Xmx3G"
             def suffix = null
             if (new PlatformInfo().isWindows())
                 suffix = 'bat'
@@ -298,6 +299,7 @@ targetList.each { target ->
                 buildFile project('klib').file('platform.gradle')
                 dir project(':klib').projectDir
                 startParameter.projectProperties = [
+                        'konan.jvmArgs'  : jvmArgs,
                         'kotlin_version' : kotlin_version,
                         'name'           : defFile.name,
                         'defFile'        : defFile.file.absolutePath,

samples/gradle.properties

@@ -1 +1,2 @@
 konan.home=../../dist
+konan.jvmArgs=-Xmx3G

samples/gradle.properties.for_bundle

@@ -1 +1,2 @@
 konan.home=../..
+konan.jvmArgs=-Xmx3G

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KonanPlugin.kt

@@ -34,6 +34,7 @@ import javax.inject.Inject
  *      konan.home          - directory where compiler is located (aka dist in konan project output).
  *      konan.version       - a konan compiler version for downloading.
  *      konan.build.targets - list of targets to build (by default all the declared targets are built).
+ *      konan.jvmArgs       - additional args to be passed to a JVM executing the compiler/cinterop tool.
  */
 
 internal fun Project.hasProperty(property: KonanPlugin.ProjectProperty) = hasProperty(property.propertyName)
@@ -90,6 +91,9 @@ internal val Project.requestedTargets
         it.toString().trim().split("\\s+".toRegex())
     }.orEmpty()
 
+internal val Project.jvmArgs
+    get() = (findProperty(KonanPlugin.ProjectProperty.KONAN_JVM_ARGS) as String?)?.split("\\s+".toRegex()).orEmpty()
+
 internal val Project.compileAllTask
     get() = getOrCreateTask(COMPILE_ALL_TASK_NAME)
 
@@ -223,6 +227,8 @@ open class KonanExtension {
     var languageVersion: String? = null
     var apiVersion: String? = null
 
+    val jvmArgs = mutableListOf<String>()
+
     internal val konanTargets: List<KonanTarget>
         get() = targets.map { TargetManager(it).target }.distinct()
 }
@@ -234,6 +240,7 @@ class KonanPlugin @Inject constructor(private val registry: ToolingModelBuilderR
         KONAN_HOME          ("konan.home"),
         KONAN_VERSION       ("konan.version"),
         KONAN_BUILD_TARGETS ("konan.build.targets"),
+        KONAN_JVM_ARGS      ("konan.jvmArgs"),
         DOWNLOAD_COMPILER   ("download.compiler")
     }
 

tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KonanToolRunner.kt

@@ -50,9 +50,11 @@ internal abstract class KonanCliRunner(val toolName: String, val fullName: Strin
 
     override val jvmArgs = mutableListOf(
             "-ea",
-            "-Xmx3G",
             "-Dkonan.home=${project.konanHome}",
-            "-Djava.library.path=${project.konanHome}/konan/nativelib")
+            "-Djava.library.path=${project.konanHome}/konan/nativelib").apply {
+        addAll(project.konanExtension.jvmArgs)
+        addAll(project.jvmArgs)
+    }
 
     override val environment = mutableMapOf("LIBCLANG_DISABLE_CRASH_RECOVERY" to "1")