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 32 using namespace v8::internal; 33 34 TEST(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 53 TEST(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
