1b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright 2013 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Redistribution and use in source and binary forms, with or without 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// modification, are permitted provided that the following conditions are met: 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// * Redistributions of source code must retain the above copyright notice, 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// this list of conditions and the following disclaimer. 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// * Redistributions in binary form must reproduce the above copyright notice, 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// this list of conditions and the following disclaimer in the documentation 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// and/or other materials provided with the distribution. 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// * Neither the name of ARM Limited nor the names of its contributors may be 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// used to endorse or promote products derived from this software without 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// specific prior written permission. 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include <stdlib.h> 26b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "test/cctest/cctest.h" 27b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 28b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/arm64/decoder-arm64.h" 29b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/arm64/decoder-arm64-inl.h" 30b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/arm64/disasm-arm64.h" 31b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 32b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochusing namespace v8::internal; 33b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 34b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochTEST(FUZZ_decoder) { 35b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Feed noise into the decoder to check that it doesn't crash. 36b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // 43 million = ~1% of the instruction space. 37b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const int instruction_count = 43 * 1024 * 1024; 38b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 39b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint16_t seed[3] = {1, 2, 3}; 40b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch seed48(seed); 41b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 42b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Decoder<DispatchingDecoderVisitor> decoder; 43b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Instruction buffer[kInstructionSize]; 44b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 45b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < instruction_count; i++) { 46014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch uint32_t instr = static_cast<uint32_t>(mrand48()); 47b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch buffer->SetInstructionBits(instr); 48b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decoder.Decode(buffer); 49b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 50b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 51b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 52b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 53b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochTEST(FUZZ_disasm) { 54b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Feed noise into the disassembler to check that it doesn't crash. 55b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // 9 million = ~0.2% of the instruction space. 56b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static const int instruction_count = 9 * 1024 * 1024; 57b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 58b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint16_t seed[3] = {42, 43, 44}; 59b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch seed48(seed); 60b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 61b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Decoder<DispatchingDecoderVisitor> decoder; 62014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch DisassemblingDecoder disasm; 63b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Instruction buffer[kInstructionSize]; 64b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 65b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decoder.AppendVisitor(&disasm); 66b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < instruction_count; i++) { 67014dc512cdd3e367bee49a713fdc5ed92584a3e5Ben Murdoch uint32_t instr = static_cast<uint32_t>(mrand48()); 68b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch buffer->SetInstructionBits(instr); 69b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch decoder.Decode(buffer); 70b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 71b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 72