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author | Mark <mteffeteller@google.com> | 2023-06-22 00:14:58 +0000 |
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committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2023-06-22 00:14:58 +0000 |
commit | f1ff6ce482549c51088d0a4b011d676904ad2506 (patch) | |
tree | 68cf332a40b94b2d28b256b19b916f99220bb0c4 /src/jmh/java/com/code_intelligence/jazzer/runtime/FuzzerCallbacksOptimizedNonCritical.java | |
parent | ba37c2e361c2ba91bacc47fcae5383c52e50f6be (diff) | |
parent | 54819157eaa66e14f2c68b54609bd6bfa360b708 (diff) | |
download | jazzer-api-f1ff6ce482549c51088d0a4b011d676904ad2506.tar.gz |
Sync jazzer in AOSP with upstream repo (new SHA: 30decf81a147c66fa5a098072c38ab6924ba0aa6) am: 9350e0ab03 am: 99d9a79746 am: 34a8e5c8aa am: e73be1680d am: 54819157ea
Original change: https://android-review.googlesource.com/c/platform/external/jazzer-api/+/2627336
Change-Id: I05945a00c711fa8bf699188ba244d92a77bb81be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
Diffstat (limited to 'src/jmh/java/com/code_intelligence/jazzer/runtime/FuzzerCallbacksOptimizedNonCritical.java')
-rw-r--r-- | src/jmh/java/com/code_intelligence/jazzer/runtime/FuzzerCallbacksOptimizedNonCritical.java | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/jmh/java/com/code_intelligence/jazzer/runtime/FuzzerCallbacksOptimizedNonCritical.java b/src/jmh/java/com/code_intelligence/jazzer/runtime/FuzzerCallbacksOptimizedNonCritical.java new file mode 100644 index 00000000..25fad3bf --- /dev/null +++ b/src/jmh/java/com/code_intelligence/jazzer/runtime/FuzzerCallbacksOptimizedNonCritical.java @@ -0,0 +1,46 @@ +// 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; +import java.io.UnsupportedEncodingException; + +/** + * Optimized implementations of the libFuzzer callbacks that do not rely on the deprecated + * CriticalJNINatives feature. Methods with `Java` in their name implement some parts in Java. + */ +public final class FuzzerCallbacksOptimizedNonCritical { + static { + RulesJni.loadLibrary("fuzzer_callbacks", FuzzerCallbacksOptimizedNonCritical.class); + } + + static native void traceSwitch(long val, long[] cases, int pc); + + static native void traceMemcmp(byte[] b1, byte[] b2, int result, int pc); + + static native void traceStrstr(String s1, String s2, int pc); + + static void traceStrstrJava(String haystack, String needle, int pc) + throws UnsupportedEncodingException { + // Note that we are not encoding as modified UTF-8 here: The FuzzedDataProvider transparently + // converts CESU8 into modified UTF-8 by coding null bytes on two bytes. Since the fuzzer is + // more likely to insert literal null bytes, having both the fuzzer input and the reported + // string comparisons be CESU8 should perform even better than the current implementation using + // modified UTF-8. + traceStrstrInternal(needle.substring(0, Math.min(needle.length(), 64)).getBytes("CESU8"), pc); + } + + private static native void traceStrstrInternal(byte[] needle, int pc); +} |