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| 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 "cctest.h" | |
| 27 | |
| 28 #include "a64/decoder-a64.h" | |
| 29 #include "a64/decoder-a64-inl.h" | |
| 30 #include "a64/disasm-a64.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 } | |
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