src/main/java/com/code_intelligence/jazzer/runtime/FuzzTargetRunnerNatives.java


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// Copyright 2022 Code Intelligence GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.code_intelligence.jazzer.runtime;

import com.github.fmeum.rules_jni.RulesJni;

/**
 * The native functions used by FuzzTargetRunner.
 *
 * <p>This class has to be loaded by the bootstrap class loader since the native library it loads
 * links in libFuzzer and the Java hooks, which have to be on the bootstrap path so that they are
 * seen by Java standard library classes, need to be able to call native libFuzzer callbacks.
 */
public class FuzzTargetRunnerNatives {
  static {
    if (!Constants.IS_ANDROID && FuzzTargetRunnerNatives.class.getClassLoader() != null) {
      throw new IllegalStateException(
          "FuzzTargetRunnerNatives must be loaded in the bootstrap loader");
    }
    RulesJni.loadLibrary("jazzer_driver", "/com/code_intelligence/jazzer/driver");
  }

  public static native int startLibFuzzer(
      byte[][] args, Class<?> runner, boolean useExperimentalMutator);

  public static native void printCrashingInput();

  public static native void temporarilyDisableLibfuzzerExitHook();
}