Support custom entry points for native binaries

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/build.gradle

@@ -65,6 +65,7 @@ kotlin {
 
         configure([wasm32, linux64, mingw64, macos64]) {
             compilations.main.outputKinds += org.jetbrains.kotlin.gradle.plugin.mpp.NativeOutputKind.EXECUTABLE
+            compilations.main.entryPoint = "com.example.app.native.main"
         }
     }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/src/linux64Main/kotlin/linux64App.kt

@@ -3,6 +3,8 @@
  * that can be found in the license/LICENSE.txt file.
  */
 
+package com.example.app.native
+
 import com.example.lib.*
 
 fun main(args: Array<String>) {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/src/macos64Main/kotlin/macos64App.kt

@@ -3,6 +3,8 @@
  * that can be found in the license/LICENSE.txt file.
  */
 
+package com.example.app.native
+
 import com.example.lib.*
 
 fun main(args: Array<String>) {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/src/mingw64Main/kotlin/mingw64App.kt

@@ -3,6 +3,8 @@
  * that can be found in the license/LICENSE.txt file.
  */
 
+package com.example.app.native
+
 import com.example.lib.*
 
 fun main(args: Array<String>) {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/src/wasm32Main/kotlin/wasm32App.kt

@@ -3,6 +3,8 @@
  * that can be found in the license/LICENSE.txt file.
  */
 
+package com.example.app.native
+
 import com.example.lib.*
 
 fun main(args: Array<String>) {

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/kotlinCompilations.kt

@@ -319,6 +319,9 @@ class KotlinNativeCompilation(
         }.toMutableList()
     }
 
+    var entryPoint: String? = null
+    fun entryPoint(value: String) { entryPoint = value }
+
     // Naming
 
     override val compileDependencyConfigurationName: String

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/KotlinNativeTasks.kt

@@ -77,6 +77,9 @@ open class KotlinNativeCompile : AbstractCompile() {
     val target: String
         @Input get() = compilation.target.konanTarget.name
 
+    val entryPoint: String?
+        @Optional @Input get() = compilation.entryPoint
+
     val additionalCompilerOptions: Collection<String>
         @Input get() = compilation.extraOpts
 
@@ -174,6 +177,7 @@ open class KotlinNativeCompile : AbstractCompile() {
 
             addArg("-target", target)
             addArg("-p", outputKind.name.toLowerCase())
+            addArgIfNotNull("-entry", entryPoint)
 
             add("-Xmulti-platform")