diff options
Diffstat (limited to 'driver/src/main/native/com/code_intelligence/jazzer/driver/coverage_tracker.h')
-rw-r--r-- | driver/src/main/native/com/code_intelligence/jazzer/driver/coverage_tracker.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/driver/src/main/native/com/code_intelligence/jazzer/driver/coverage_tracker.h b/driver/src/main/native/com/code_intelligence/jazzer/driver/coverage_tracker.h new file mode 100644 index 00000000..8cceceed --- /dev/null +++ b/driver/src/main/native/com/code_intelligence/jazzer/driver/coverage_tracker.h @@ -0,0 +1,42 @@ +/* + * Copyright 2021 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. + */ + +#pragma once + +#include <jni.h> + +#include <string> + +namespace jazzer { + +// The members of this struct are only accessed by libFuzzer. +struct __attribute__((packed)) PCTableEntry { + [[maybe_unused]] uintptr_t PC, PCFlags; +}; + +// CoverageTracker registers an array of 8-bit coverage counters with +// libFuzzer. The array is populated from Java using Unsafe. +class CoverageTracker { + private: + static uint8_t *counters_; + static PCTableEntry *pc_entries_; + + public: + static void Initialize(JNIEnv &env, jlong counters); + static void RegisterNewCounters(JNIEnv &env, jint old_num_counters, + jint new_num_counters); +}; +} // namespace jazzer |