Kotlin Fuzzer

How to launch

gradlew core:runCoordinator -- launches central verticle com.stepanov.bbf.bugfinder.coordinator.Coordinator managing all the fuzzing process.

Then you should launch the compiler verticle, you want to fuzz: either gradlew JVMCompiler:run or gradlew NativeCompiler:run

Now the server is started and you can start fuzzing by sending request with fuzzing settings. Examples of that you can see at mutationRequests

You can also send request to http://localhost:8888/filter-results address to filter (deduplicate) results

JVMCompiler

Make sure to download all the necessary kotlin libs. For that launch download task from Gradle. Or download them manually and put to JVMCompiler/tmp/lib

NativeCompiler

To launch NativeCompiler verticle you should specify at NativeCompiler/build.gradle a path to local JAR with Kotlin/Native API (you can download it from Kotlin Github)

klib-fuzzing branch

Fuzzer targeted to fuzz evolving klibs. For that more specific transformations implemented, Invocator added and very specific compilation process configured

To future developers

Coordinator is the central verticle coordinating others. BugManager is the verticle responsible for storing bugs, Mutator -- for applying transformations.

Such a weird project structure is required, because we wanted to have both JVMCompiler and NativeCompiler, and we couldn't do it in one project because there would be a dependency conflict.

When adding new transformation, don't forget to add it to ListOfAllTransformations.kt.

Don't forget to dispose com.stepanov.bbf.bugfinder.project.Project after you are done with it to avoid memory leak.