1// Copyright 2013 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are met: 4// 5// * Redistributions of source code must retain the above copyright notice, 6// this list of conditions and the following disclaimer. 7// * Redistributions in binary form must reproduce the above copyright notice, 8// this list of conditions and the following disclaimer in the documentation 9// and/or other materials provided with the distribution. 10// * Neither the name of ARM Limited nor the names of its contributors may be 11// used to endorse or promote products derived from this software without 12// specific prior written permission. 13// 14// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND 15// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 18// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 20// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 21// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 22// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 25#include <stdlib.h> 26#include "test/cctest/cctest.h" 27 28#include "src/arm64/decoder-arm64.h" 29#include "src/arm64/decoder-arm64-inl.h" 30#include "src/arm64/disasm-arm64.h" 31 32using namespace v8::internal; 33 34TEST(FUZZ_decoder) { 35 // Feed noise into the decoder to check that it doesn't crash. 36 // 43 million = ~1% of the instruction space. 37 static const int instruction_count = 43 * 1024 * 1024; 38 39 uint16_t seed[3] = {1, 2, 3}; 40 seed48(seed); 41 42 Decoder<DispatchingDecoderVisitor> decoder; 43 Instruction buffer[kInstructionSize]; 44 45 for (int i = 0; i < instruction_count; i++) { 46 uint32_t instr = mrand48(); 47 buffer->SetInstructionBits(instr); 48 decoder.Decode(buffer); 49 } 50} 51 52 53TEST(FUZZ_disasm) { 54 // Feed noise into the disassembler to check that it doesn't crash. 55 // 9 million = ~0.2% of the instruction space. 56 static const int instruction_count = 9 * 1024 * 1024; 57 58 uint16_t seed[3] = {42, 43, 44}; 59 seed48(seed); 60 61 Decoder<DispatchingDecoderVisitor> decoder; 62 Disassembler disasm; 63 Instruction buffer[kInstructionSize]; 64 65 decoder.AppendVisitor(&disasm); 66 for (int i = 0; i < instruction_count; i++) { 67 uint32_t instr = mrand48(); 68 buffer->SetInstructionBits(instr); 69 decoder.Decode(buffer); 70 } 71} 72