mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-23 04:09:40 +00:00
99 lines
3.8 KiB
C++
99 lines
3.8 KiB
C++
/*
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* Copyright (C) 2012-2019 Apple Inc. All rights reserved.
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*
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (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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*/
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#include "config.h"
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#include "ProfilerBytecodeSequence.h"
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#include "CodeBlock.h"
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#include "JSCInlines.h"
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#include <wtf/StringPrintStream.h>
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namespace JSC { namespace Profiler {
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BytecodeSequence::BytecodeSequence(CodeBlock* codeBlock)
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{
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StringPrintStream out;
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for (unsigned i = 0; i < codeBlock->numberOfArgumentValueProfiles(); ++i) {
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ConcurrentJSLocker locker(codeBlock->m_lock);
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CString description = codeBlock->valueProfileForArgument(i).briefDescription(locker);
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if (!description.length())
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continue;
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out.reset();
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out.print("arg", i, ": ", description);
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m_header.append(out.toCString());
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}
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ICStatusMap statusMap;
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codeBlock->getICStatusMap(statusMap);
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for (unsigned bytecodeIndex = 0; bytecodeIndex < codeBlock->instructions().size();) {
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out.reset();
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codeBlock->dumpBytecode(out, bytecodeIndex, statusMap);
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auto instruction = codeBlock->instructions().at(bytecodeIndex);
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OpcodeID opcodeID = instruction->opcodeID();
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m_sequence.append(Bytecode(bytecodeIndex, opcodeID, out.toCString()));
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bytecodeIndex += instruction->size();
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}
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}
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BytecodeSequence::~BytecodeSequence()
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{
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}
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unsigned BytecodeSequence::indexForBytecodeIndex(unsigned bytecodeIndex) const
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{
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return binarySearch<Bytecode, unsigned>(m_sequence, m_sequence.size(), bytecodeIndex, getBytecodeIndexForBytecode) - m_sequence.begin();
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}
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const Bytecode& BytecodeSequence::forBytecodeIndex(unsigned bytecodeIndex) const
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{
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return at(indexForBytecodeIndex(bytecodeIndex));
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}
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void BytecodeSequence::addSequenceProperties(JSGlobalObject* globalObject, JSObject* result) const
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{
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VM& vm = globalObject->vm();
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auto scope = DECLARE_THROW_SCOPE(vm);
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JSArray* header = constructEmptyArray(globalObject, nullptr);
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RETURN_IF_EXCEPTION(scope, void());
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for (unsigned i = 0; i < m_header.size(); ++i) {
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header->putDirectIndex(globalObject, i, jsString(vm, String::fromUTF8(m_header[i])));
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RETURN_IF_EXCEPTION(scope, void());
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}
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result->putDirect(vm, vm.propertyNames->header, header);
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JSArray* sequence = constructEmptyArray(globalObject, nullptr);
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RETURN_IF_EXCEPTION(scope, void());
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for (unsigned i = 0; i < m_sequence.size(); ++i) {
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sequence->putDirectIndex(globalObject, i, m_sequence[i].toJS(globalObject));
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RETURN_IF_EXCEPTION(scope, void());
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}
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result->putDirect(vm, vm.propertyNames->bytecode, sequence);
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}
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} } // namespace JSC::Profiler
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