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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 "ProfilerCompilation.h"
#include "JSCInlines.h"
#include "ObjectConstructor.h"
#include "ProfilerDatabase.h"
#include "ProfilerDumper.h"
#include <wtf/StringPrintStream.h>
namespace JSC { namespace Profiler {
Compilation::Compilation(Bytecodes* bytecodes, CompilationKind kind)
: m_kind(kind)
, m_bytecodes(bytecodes)
, m_numInlinedGetByIds(0)
, m_numInlinedPutByIds(0)
, m_numInlinedCalls(0)
, m_jettisonReason(NotJettisoned)
, m_uid(UID::generate())
{
}
Compilation::~Compilation() = default;
void Compilation::addProfiledBytecodes(Database& database, CodeBlock* profiledBlock)
{
Bytecodes* bytecodes = database.ensureBytecodesFor(profiledBlock);
// First make sure that we haven't already added profiled bytecodes for this code
// block. We do this using an O(N) search because I suspect that this list will
// tend to be fairly small, and the additional space costs of having a UncheckedKeyHashMap/Set
// would be greater than the time cost of occasionally doing this search.
for (unsigned i = m_profiledBytecodes.size(); i--;) {
if (m_profiledBytecodes[i].bytecodes() == bytecodes)
return;
}
m_profiledBytecodes.append(ProfiledBytecodes(bytecodes, profiledBlock));
}
void Compilation::addDescription(const CompiledBytecode& compiledBytecode)
{
m_descriptions.append(compiledBytecode);
}
void Compilation::addDescription(const OriginStack& stack, const CString& description)
{
addDescription(CompiledBytecode(stack, description));
}
ExecutionCounter* Compilation::executionCounterFor(const OriginStack& origin)
{
std::unique_ptr<ExecutionCounter>& counter = m_counters.add(origin, nullptr).iterator->value;
if (!counter)
counter = makeUnique<ExecutionCounter>();
return counter.get();
}
void Compilation::addOSRExitSite(const Vector<CodePtr<JSInternalPtrTag>>& codeAddresses)
{
m_osrExitSites.append(OSRExitSite(codeAddresses));
}
OSRExit* Compilation::addOSRExit(unsigned id, const OriginStack& originStack, ExitKind exitKind, bool isWatchpoint)
{
m_osrExits.append(OSRExit(id, originStack, exitKind, isWatchpoint));
return &m_osrExits.last();
}
void Compilation::setJettisonReason(JettisonReason jettisonReason, const FireDetail* detail)
{
if (m_jettisonReason != NotJettisoned)
return; // We only care about the original jettison reason.
m_jettisonReason = jettisonReason;
if (detail)
m_additionalJettisonReason = toCString(*detail);
else
m_additionalJettisonReason = CString();
}
void Compilation::dump(PrintStream& out) const
{
out.print("Comp", m_uid);
}
Ref<JSON::Value> Compilation::toJSON(Dumper& dumper) const
{
auto result = JSON::Object::create();
result->setDouble(dumper.keys().m_bytecodesID, m_bytecodes->id());
result->setString(dumper.keys().m_compilationKind, String::fromUTF8(toCString(m_kind).span()));
auto profiledBytecodes = JSON::Array::create();
for (const auto& bytecode : m_profiledBytecodes)
profiledBytecodes->pushValue(bytecode.toJSON(dumper));
result->setValue(dumper.keys().m_profiledBytecodes, WTFMove(profiledBytecodes));
auto descriptions = JSON::Array::create();
for (const auto& description : m_descriptions)
descriptions->pushValue(description.toJSON(dumper));
result->setValue(dumper.keys().m_descriptions, WTFMove(descriptions));
auto counters = JSON::Array::create();
for (const auto& [key, value] : m_counters) {
auto counterEntry = JSON::Object::create();
counterEntry->setValue(dumper.keys().m_origin, key.toJSON(dumper));
counterEntry->setDouble(dumper.keys().m_executionCount, value->count());
counters->pushValue(WTFMove(counterEntry));
}
result->setValue(dumper.keys().m_counters, WTFMove(counters));
auto exitSites = JSON::Array::create();
for (const auto& osrExitSite : m_osrExitSites)
exitSites->pushValue(osrExitSite.toJSON(dumper));
result->setValue(dumper.keys().m_osrExitSites, WTFMove(exitSites));
auto exits = JSON::Array::create();
for (unsigned i = 0; i < m_osrExits.size(); ++i)
exits->pushValue(m_osrExits[i].toJSON(dumper));
result->setValue(dumper.keys().m_osrExits, WTFMove(exits));
result->setDouble(dumper.keys().m_numInlinedGetByIds, m_numInlinedGetByIds);
result->setDouble(dumper.keys().m_numInlinedPutByIds, m_numInlinedPutByIds);
result->setDouble(dumper.keys().m_numInlinedCalls, m_numInlinedCalls);
result->setString(dumper.keys().m_jettisonReason, String::fromUTF8(toCString(m_jettisonReason).span()));
if (!m_additionalJettisonReason.isNull())
result->setString(dumper.keys().m_additionalJettisonReason, String::fromUTF8(m_additionalJettisonReason.span()));
result->setString(dumper.keys().m_uid, makeString(m_uid));
return result;
}
} } // namespace JSC::Profiler
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