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[libFuzzer] one more puzzle for value profile

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llvm-svn: 281106
This commit is contained in:
Kostya Serebryany 2016-09-09 21:58:42 +00:00
parent 9062fe6d1d
commit f3e050c251
3 changed files with 25 additions and 0 deletions
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23
lib/Fuzzer/test/AbsNegAndConstant64Test.cpp Normal file
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@ -0,0 +1,23 @@
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// abs(x) < 0 and y == Const puzzle, 64-bit variant.
#include <cstring>
#include <cstdint>
#include <cstdlib>
#include <cstddef>
#include <cstdio>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
if (Size < 16) return 0;
long x;
unsigned long y;
memcpy(&x, Data, 8);
memcpy(&y, Data + 8, 8);
if (labs(x) < 0 && y == 0xbaddcafedeadbeefUL) {
printf("BINGO; Found the target, exiting; x = 0x%lx y 0x%lx\n", x, y);
exit(1);
}
return 0;
}

1
lib/Fuzzer/test/CMakeLists.txt
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@ -63,6 +63,7 @@ set(TestBinaries)
set(Tests
AbsNegAndConstantTest
AbsNegAndConstant64Test
AccumulateAllocationsTest
BufferOverflowOnInput
CallerCalleeTest

1
lib/Fuzzer/test/value-profile-cmp.test
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@ -2,5 +2,6 @@ CHECK: BINGO
RUN: not LLVMFuzzer-SimpleCmpTest -use_value_profile=1 -runs=100000000 2>&1 | FileCheck %s
RUN: not LLVMFuzzer-SimpleHashTest -use_value_profile=1 -runs=100000000 2>&1 | FileCheck %s
RUN: not LLVMFuzzer-AbsNegAndConstantTest -use_value_profile=1 -runs=100000000 2>&1 | FileCheck %s
RUN: not LLVMFuzzer-AbsNegAndConstant64Test -use_value_profile=1 -runs=100000000 2>&1 | FileCheck %s