diff --git a/backend.native/tests/build.gradle b/backend.native/tests/build.gradle
index b3faa8cb111..f629b6ff80f 100644
--- a/backend.native/tests/build.gradle
+++ b/backend.native/tests/build.gradle
@@ -2612,6 +2612,9 @@ if (isMac()) {
                 args "-lobjc", '-fobjc-arc'
                 args '-fPIC', '-shared', '-o', "$buildDir/libobjcsmoke.dylib"
             }
+            if (project.testTarget == 'ios_x64') {
+                UtilsKt.codesign(project, "$buildDir/libobjcsmoke.dylib")
+            }
         }
     }
 }
diff --git a/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/ExecutorService.kt b/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/ExecutorService.kt
index 4b437d202ff..75aef82ae06 100644
--- a/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/ExecutorService.kt
+++ b/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/ExecutorService.kt
@@ -22,6 +22,7 @@ import org.gradle.api.Project
 import org.gradle.process.ExecResult
 import org.gradle.process.ExecSpec
 import org.gradle.util.ConfigureUtil
+import org.jetbrains.kotlin.konan.target.AppleConfigurables
 
 import org.jetbrains.kotlin.konan.target.KonanTarget
 import org.jetbrains.kotlin.konan.target.PlatformManager
@@ -123,6 +124,12 @@ fun runProcess(executor: (Action<in ExecSpec>) -> ExecResult?,
 fun runProcess(executor: (Action<in ExecSpec>) -> ExecResult?,
                executable: String, vararg args: String) = runProcess(executor, executable, args.toList())
 
+/**
+ * Returns Project's process executor
+ * @see Project.exec
+ */
+fun localExecutor(project: Project) = { a: Action<in ExecSpec> -> project.exec(a) }
+
 /**
  * Executes a given action with iPhone Simulator.
  *
@@ -144,11 +151,22 @@ private fun simulator(project: Project) : ExecutorService = object : ExecutorSer
         out.toString("UTF-8").trim()
     }
 
-    private val iosDevice = project.findProperty("iosDevice")?.toString() ?: "iPhone 8"
+    private val list by lazy {
+        val out = ByteArrayOutputStream()
+        val result = project.exec {
+            it.commandLine(simctl, "list")
+            it.standardOutput = out
+        }
+        result.assertNormalExitValue()
+        out.toString("UTF-8").trim()
+    }
+
+    private val iosDevice = project.findProperty("iosDevice")?.toString() ?: "iPhone 6"
 
     override fun execute(action: Action<in ExecSpec>): ExecResult? = project.exec { execSpec ->
+        println(list)
         action.execute(execSpec)
-        with(execSpec) { commandLine = listOf(simctl, "spawn", iosDevice, executable) + args }
+        with(execSpec) { commandLine = listOf("/usr/bin/xcrun", "simctl", "spawn", "iPhone 6", executable) + args }
     }
 }
 
diff --git a/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/FrameworkTest.kt b/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/FrameworkTest.kt
index d463cbde195..938faa75801 100644
--- a/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/FrameworkTest.kt
+++ b/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/FrameworkTest.kt
@@ -40,15 +40,7 @@ open class FrameworkTest : DefaultTask() {
     fun run() {
         val frameworkPath = "$testOutput/$frameworkName/${project.testTarget().name}"
 
-        // Sign framework
-        val (stdOut, stdErr, exitCode) = runProcess(executor = localExecutor, executable = "/usr/bin/codesign",
-                args = listOf("--verbose", "-s", "-", Paths.get(frameworkPath, "$frameworkName.framework").toString()))
-        check(exitCode == 0, { """
-            |Codesign failed with exitCode: $exitCode
-            |stdout: $stdOut
-            |stderr: $stdErr
-            """.trimMargin()
-        })
+        codesign(project, Paths.get(frameworkPath, "$frameworkName.framework").toString())
 
         // create a test provider and get main entry point
         val provider = Paths.get(testOutput, frameworkName, "provider.swift")
@@ -88,13 +80,6 @@ open class FrameworkTest : DefaultTask() {
         check(exitCode == 0, { "Execution failed with exit code: $exitCode "})
     }
 
-    private val localExecutor = { a: Action<in ExecSpec> -> project.exec(a) }
-
-    private fun Project.platformManager() = rootProject.findProperty("platformManager") as PlatformManager
-
-    private fun Project.testTarget() = platformManager()
-            .targetManager(project.findProperty("testTarget") as String?).target
-
     private fun swiftc(sources: List<String>, options: List<String>, output: Path) {
         val target = project.testTarget()
         val platform = project.platformManager().platform(target)
@@ -112,7 +97,7 @@ open class FrameworkTest : DefaultTask() {
         val args = listOf("-sdk", configs.absoluteTargetSysRoot, "-target", swiftTarget) +
                 options + "-o" + output.toString() + sources
 
-        val (stdOut, stdErr, exitCode) = runProcess(executor = localExecutor, executable = compiler, args = args)
+        val (stdOut, stdErr, exitCode) = runProcess(executor = localExecutor(project), executable = compiler, args = args)
 
         println("""
             |$compiler finished with exit code: $exitCode
diff --git a/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/Utils.kt b/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/Utils.kt
new file mode 100644
index 00000000000..7274106a7d6
--- /dev/null
+++ b/buildSrc/plugins/src/main/kotlin/org/jetbrains/kotlin/Utils.kt
@@ -0,0 +1,24 @@
+package org.jetbrains.kotlin
+
+import org.gradle.api.Project
+import org.jetbrains.kotlin.konan.target.HostManager
+import org.jetbrains.kotlin.konan.target.PlatformManager
+
+fun Project.platformManager() = rootProject.findProperty("platformManager") as PlatformManager
+
+fun Project.testTarget() = platformManager().targetManager(project.findProperty("testTarget") as String?).target
+
+/**
+ * Ad-hoc signing of the specified path
+ */
+fun codesign(project: Project, path: String) {
+    check(HostManager.hostIsMac, { "Apple specific code signing" } )
+    val (stdOut, stdErr, exitCode) = runProcess(executor = localExecutor(project), executable = "/usr/bin/codesign",
+            args = listOf("--verbose", "-s", "-", path))
+    check(exitCode == 0, { """
+            |Codesign failed with exitCode: $exitCode
+            |stdout: $stdOut
+            |stderr: $stdErr
+            """.trimMargin()
+    })
+}
\ No newline at end of file