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// 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.
package com.code_intelligence.jazzer.instrumentor;
import java.nio.ByteBuffer;
import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Stack;
import java.util.Vector;
public class TraceDataFlowInstrumentationTarget implements DynamicTestContract {
volatile long long1 = 1;
volatile long long2 = 1;
volatile long long3 = 2;
volatile long long4 = 3;
volatile int int1 = 4;
volatile int int2 = 4;
volatile int int3 = 6;
volatile int int4 = 5;
volatile int switchValue = 1200;
@SuppressWarnings("ReturnValueIgnored")
@Override
public Map<String, Boolean> selfCheck() {
Map<String, Boolean> results = new HashMap<>();
results.put("longCompareEq", long1 == long2);
results.put("longCompareNe", long3 != long4);
results.put("intCompareEq", int1 == int2);
results.put("intCompareNe", int3 != int4);
results.put("intCompareLt", int4 < int3);
results.put("intCompareLe", int4 <= int3);
results.put("intCompareGt", int3 > int4);
results.put("intCompareGe", int3 >= int4);
// Not instrumented since all case values are non-negative and < 256.
switch (switchValue) {
case 119:
case 120:
case 121:
results.put("tableSwitchUninstrumented", false);
break;
default:
results.put("tableSwitchUninstrumented", true);
}
// Not instrumented since all case values are non-negative and < 256.
switch (switchValue) {
case 1:
case 200:
results.put("lookupSwitchUninstrumented", false);
break;
default:
results.put("lookupSwitchUninstrumented", true);
}
results.put("emptySwitchUninstrumented", false);
switch (switchValue) {
default:
results.put("emptySwitchUninstrumented", true);
}
switch (switchValue) {
case 1000:
case 1001:
// case 1002: The tableswitch instruction will contain a gap case for 1002.
case 1003:
results.put("tableSwitch", false);
break;
default:
results.put("tableSwitch", true);
}
switch (-switchValue) {
case -1200:
results.put("lookupSwitch", true);
break;
case -1:
case -10:
case -1000:
case 200:
default:
results.put("lookupSwitch", false);
}
results.put("intDiv", (int3 / 2) == 3);
results.put("longDiv", (long4 / 2) == 1);
String[] referenceArray = {"foo", "foo", "bar"};
boolean[] boolArray = {false, false, true};
byte[] byteArray = {0, 0, 2};
char[] charArray = {0, 0, 0, 3};
double[] doubleArray = {0, 0, 0, 0, 4};
float[] floatArray = {0, 0, 0, 0, 0, 5};
int[] intArray = {0, 0, 0, 0, 0, 0, 6};
long[] longArray = {0, 0, 0, 0, 0, 0, 0, 7};
short[] shortArray = {0, 0, 0, 0, 0, 0, 0, 0, 8};
results.put("referenceArrayGep", referenceArray[2].equals("bar"));
results.put("boolArrayGep", boolArray[2]);
results.put("byteArrayGep", byteArray[2] == 2);
results.put("charArrayGep", charArray[3] == 3);
results.put("doubleArrayGep", doubleArray[4] == 4);
results.put("floatArrayGep", floatArray[5] == 5);
results.put("intArrayGep", intArray[6] == 6);
results.put("longArrayGep", longArray[7] == 7);
results.put("shortArrayGep", shortArray[8] == 8);
ByteBuffer buffer = ByteBuffer.allocate(100);
buffer.get(2);
buffer.getChar(3);
buffer.getDouble(4);
buffer.getFloat(5);
buffer.getInt(6);
buffer.getLong(7);
buffer.getShort(8);
"foobarbazbat".charAt(9);
"foobarbazbat".codePointAt(10);
new StringBuilder("foobarbazbat").charAt(11);
(new Vector<>(Collections.nCopies(20, "foo"))).get(12);
(new ArrayList<>(Collections.nCopies(20, "foo"))).get(13);
Stack<String> stack = new Stack<>();
for (int i = 0; i < 20; i++) stack.push("foo");
stack.get(14);
stack.get(15);
((AbstractList<String>) stack).get(16);
((List<String>) stack).get(17);
return results;
}
}
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