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/*
* Copyright (C) 2012-2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "config.h"
#include "ProfilerBytecodeSequence.h"
#include "CodeBlock.h"
#include "JSCInlines.h"
#include "ProfilerDumper.h"
#include <wtf/StringPrintStream.h>
namespace JSC { namespace Profiler {
BytecodeSequence::BytecodeSequence(CodeBlock* codeBlock)
{
StringPrintStream out;
{
unsigned index = 0;
ConcurrentJSLocker locker(codeBlock->valueProfileLock());
for (auto& profile : codeBlock->argumentValueProfiles()) {
CString description = profile.briefDescription(locker);
if (!description.length())
continue;
out.reset();
out.print("arg", index++, ": ", description);
m_header.append(out.toCString());
}
}
ICStatusMap statusMap;
codeBlock->getICStatusMap(statusMap);
for (unsigned bytecodeIndex = 0; bytecodeIndex < codeBlock->instructions().size();) {
out.reset();
codeBlock->dumpBytecode(out, bytecodeIndex, statusMap);
auto instruction = codeBlock->instructions().at(bytecodeIndex);
OpcodeID opcodeID = instruction->opcodeID();
m_sequence.append(Bytecode(bytecodeIndex, opcodeID, out.toCString()));
bytecodeIndex += instruction->size();
}
}
BytecodeSequence::~BytecodeSequence() = default;
unsigned BytecodeSequence::indexForBytecodeIndex(unsigned bytecodeIndex) const
{
return binarySearch<Bytecode, unsigned>(m_sequence, m_sequence.size(), bytecodeIndex, getBytecodeIndexForBytecode) - m_sequence.begin();
}
const Bytecode& BytecodeSequence::forBytecodeIndex(unsigned bytecodeIndex) const
{
return at(indexForBytecodeIndex(bytecodeIndex));
}
void BytecodeSequence::addSequenceProperties(Dumper& dumper, JSON::Object& result) const
{
Ref jsonHeader = JSON::Array::create();
for (auto& header : m_header)
jsonHeader->pushString(String::fromUTF8(header.span()));
result.setValue(dumper.keys().m_header, WTFMove(jsonHeader));
Ref jsonSequence = JSON::Array::create();
for (auto& sequence : m_sequence)
jsonSequence->pushValue(sequence.toJSON(dumper));
result.setValue(dumper.keys().m_bytecode, WTFMove(jsonSequence));
}
} } // namespace JSC::Profiler
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