f455f86d89
Bug: v8:9247 Change-Id: I2f999ed3a8cc0931e5092f2ac6e709b8ff3f9e42 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630678 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#61896}
92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of ARM Limited nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <stdlib.h>
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#include "test/cctest/cctest.h"
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#include "src/codegen/arm64/decoder-arm64-inl.h"
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#include "src/codegen/arm64/decoder-arm64.h"
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#include "src/diagnostics/arm64/disasm-arm64.h"
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#if defined(V8_OS_WIN)
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#define RANDGEN() rand()
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#else
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#define RANDGEN() mrand48()
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#endif
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namespace v8 {
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namespace internal {
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TEST(FUZZ_decoder) {
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// Feed noise into the decoder to check that it doesn't crash.
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// 43 million = ~1% of the instruction space.
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static const int instruction_count = 43 * 1024 * 1024;
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#if defined(V8_OS_WIN)
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srand(1);
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#else
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uint16_t seed[3] = {1, 2, 3};
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seed48(seed);
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#endif
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Decoder<DispatchingDecoderVisitor> decoder;
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Instruction buffer[kInstrSize];
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for (int i = 0; i < instruction_count; i++) {
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uint32_t instr = static_cast<uint32_t>(RANDGEN());
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buffer->SetInstructionBits(instr);
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decoder.Decode(buffer);
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}
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}
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TEST(FUZZ_disasm) {
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// Feed noise into the disassembler to check that it doesn't crash.
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// 9 million = ~0.2% of the instruction space.
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static const int instruction_count = 9 * 1024 * 1024;
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#if defined(V8_OS_WIN)
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srand(42);
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#else
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uint16_t seed[3] = {42, 43, 44};
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seed48(seed);
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#endif
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Decoder<DispatchingDecoderVisitor> decoder;
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DisassemblingDecoder disasm;
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Instruction buffer[kInstrSize];
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decoder.AppendVisitor(&disasm);
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for (int i = 0; i < instruction_count; i++) {
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uint32_t instr = static_cast<uint32_t>(RANDGEN());
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buffer->SetInstructionBits(instr);
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decoder.Decode(buffer);
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}
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}
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} // namespace internal
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} // namespace v8
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#undef RANDGEN
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