2014-02-12 09:19:30 +00:00
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// 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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2015-11-17 12:42:14 +00:00
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// TODO(jochen): Remove this after the setting is turned on globally.
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#define V8_IMMINENT_DEPRECATION_WARNINGS
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2014-02-12 09:19:30 +00:00
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#include <stdlib.h>
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2014-06-03 08:12:43 +00:00
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#include "test/cctest/cctest.h"
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2014-02-12 09:19:30 +00:00
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2014-06-03 08:12:43 +00:00
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#include "src/arm64/decoder-arm64.h"
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#include "src/arm64/decoder-arm64-inl.h"
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#include "src/arm64/disasm-arm64.h"
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2014-02-12 09:19:30 +00:00
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using namespace v8::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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uint16_t seed[3] = {1, 2, 3};
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seed48(seed);
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2014-02-26 12:01:05 +00:00
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Decoder<DispatchingDecoderVisitor> decoder;
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2014-02-12 09:19:30 +00:00
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Instruction buffer[kInstructionSize];
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for (int i = 0; i < instruction_count; i++) {
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2015-05-15 05:13:15 +00:00
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uint32_t instr = static_cast<uint32_t>(mrand48());
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2014-02-12 09:19:30 +00:00
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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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uint16_t seed[3] = {42, 43, 44};
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seed48(seed);
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2014-02-26 12:01:05 +00:00
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Decoder<DispatchingDecoderVisitor> decoder;
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[assembler] Introduce proper AssemblerBase::Print() for improved debuggability.
While working on frame elision, I wanted to disassemble codegen in the
debugger, as the code generation is progressing. I discovered we had a
"Print" member on the x64 assembler, without any implementation. I
pulled it up to AssemblerBase and gave it an implementation that
should work for the other architectures.
Also checked that ia32, x87, arm and arm64 assemblers didn't have
such an implementation - free Print.
Arm64 has a naming conflict with the v8::internal::Disassembler. I
renamed the arm64 type with a more specific name.
Opportunistically fixed a bug in the name converter. This debug-time
printer doesn't provide a Code object, which should be OK with the
name converters, by the looks of other APIs there. All this means is that
when using the Print() API, we just get addresses dumped without any
context (like what this address may be - a stub maybe, etc). This seems
fine for the scenario.
There may be other places that assume a Code object. Since this is
a diagnostics-only scenario, for codegen developers, I feel it is
reasonable to fix such other places as we find them.
Review URL: https://codereview.chromium.org/1431933003
Cr-Commit-Position: refs/heads/master@{#31869}
2015-11-09 05:39:20 +00:00
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DisassemblingDecoder disasm;
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2014-02-12 09:19:30 +00:00
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Instruction buffer[kInstructionSize];
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decoder.AppendVisitor(&disasm);
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for (int i = 0; i < instruction_count; i++) {
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2015-05-15 05:13:15 +00:00
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uint32_t instr = static_cast<uint32_t>(mrand48());
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2014-02-12 09:19:30 +00:00
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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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