Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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++) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 46 | uint32_t instr = static_cast<uint32_t>(mrand48()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 62 | DisassemblingDecoder disasm; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 63 | Instruction buffer[kInstructionSize]; |
| 64 | |
| 65 | decoder.AppendVisitor(&disasm); |
| 66 | for (int i = 0; i < instruction_count; i++) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 67 | uint32_t instr = static_cast<uint32_t>(mrand48()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 68 | buffer->SetInstructionBits(instr); |
| 69 | decoder.Decode(buffer); |
| 70 | } |
| 71 | } |