// Copyright 2013 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // * Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // * Neither the name of ARM Limited nor the names of its contributors may be // used to endorse or promote products derived from this software without // specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include <stdlib.h> #include "test/cctest/cctest.h" #include "src/codegen/arm64/decoder-arm64-inl.h" #include "src/codegen/arm64/decoder-arm64.h" #include "src/diagnostics/arm64/disasm-arm64.h" #if defined(V8_OS_WIN) #define RANDGEN() rand() #else #define RANDGEN() mrand48() #endif namespace v8 { namespace internal { TEST(FUZZ_decoder) { // Feed noise into the decoder to check that it doesn't crash. // 43 million = ~1% of the instruction space. static const int instruction_count = 43 * 1024 * 1024; #if defined(V8_OS_WIN) srand(1); #else uint16_t seed[3] = {1, 2, 3}; seed48(seed); #endif Decoder<DispatchingDecoderVisitor> decoder; Instruction buffer[kInstrSize]; for (int i = 0; i < instruction_count; i++) { uint32_t instr = static_cast<uint32_t>(RANDGEN()); buffer->SetInstructionBits(instr); decoder.Decode(buffer); } } TEST(FUZZ_disasm) { // Feed noise into the disassembler to check that it doesn't crash. // 9 million = ~0.2% of the instruction space. static const int instruction_count = 9 * 1024 * 1024; #if defined(V8_OS_WIN) srand(42); #else uint16_t seed[3] = {42, 43, 44}; seed48(seed); #endif Decoder<DispatchingDecoderVisitor> decoder; DisassemblingDecoder disasm; Instruction buffer[kInstrSize]; decoder.AppendVisitor(&disasm); for (int i = 0; i < instruction_count; i++) { uint32_t instr = static_cast<uint32_t>(RANDGEN()); buffer->SetInstructionBits(instr); decoder.Decode(buffer); } } } // namespace internal } // namespace v8 #undef RANDGEN