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// 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/arm64/decoder-arm64.h"
#include "src/arm64/decoder-arm64-inl.h"
#include "src/arm64/disasm-arm64.h"
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;
uint16_t seed[3] = {1, 2, 3};
seed48(seed);
Decoder<DispatchingDecoderVisitor> decoder;
Instruction buffer[kInstrSize];
for (int i = 0; i < instruction_count; i++) {
uint32_t instr = static_cast<uint32_t>(mrand48());
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;
uint16_t seed[3] = {42, 43, 44};
seed48(seed);
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>(mrand48());
buffer->SetInstructionBits(instr);
decoder.Decode(buffer);
}
}
} // namespace internal
} // namespace v8
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