ArenaMemoryData *
MemoryProfiler::Begin(LPCWSTR name)
{
if (!Js::Configuration::Global.flags.IsEnabled(Js::TraceMemoryFlag))
{
return nullptr;
}
Assert(name != nullptr);
if (wcscmp(name, _u("MemoryProfiler")) == 0)
{
// Don't profile memory profiler itself
return nullptr;
}
// This is debug only code, we don't care if we catch the right exception
AUTO_NESTED_HANDLED_EXCEPTION_TYPE(ExceptionType_DisableCheck);
MemoryProfiler * memoryProfiler = EnsureMemoryProfiler();
ArenaMemoryDataSummary * arenaTotalMemoryData;
if (!memoryProfiler->arenaDataMap.TryGetValue((LPWSTR)name, &arenaTotalMemoryData))
{
arenaTotalMemoryData = AnewStructZ(&memoryProfiler->alloc, ArenaMemoryDataSummary);
memoryProfiler->arenaDataMap.Add((LPWSTR)name, arenaTotalMemoryData);
}
arenaTotalMemoryData->arenaCount++;
ArenaMemoryData * memoryData = AnewStructZ(&memoryProfiler->alloc, ArenaMemoryData);
if (arenaTotalMemoryData->data == nullptr)
{
arenaTotalMemoryData->data = memoryData;
}
else
{
memoryData->next = arenaTotalMemoryData->data;
arenaTotalMemoryData->data->prev = memoryData;
arenaTotalMemoryData->data = memoryData;
}
memoryData->profiler = memoryProfiler;
return memoryData;
}
/* static */
void
JITTimeFunctionBody::InitializeJITFunctionData(
__in ArenaAllocator * arena,
__in Js::FunctionBody *functionBody,
__out FunctionBodyDataIDL * jitBody)
{
Assert(functionBody != nullptr);
// const table
jitBody->constCount = functionBody->GetConstantCount();
if (functionBody->GetConstantCount() > 0)
{
jitBody->constTable = (intptr_t *)functionBody->GetConstTable();
if (!functionBody->GetIsAsmJsFunction())
{
jitBody->constTableContent = AnewStructZ(arena, ConstTableContentIDL);
jitBody->constTableContent->count = functionBody->GetConstantCount();
jitBody->constTableContent->content = AnewArrayZ(arena, RecyclableObjectIDL*, functionBody->GetConstantCount());
for (Js::RegSlot reg = Js::FunctionBody::FirstRegSlot; reg < functionBody->GetConstantCount(); ++reg)
{
Js::Var varConst = functionBody->GetConstantVar(reg);
Assert(varConst != nullptr);
if (Js::TaggedInt::Is(varConst) ||
varConst == (Js::Var)&Js::NullFrameDisplay ||
varConst == (Js::Var)&Js::StrictNullFrameDisplay)
{
// don't need TypeId for these
}
else
{
if (Js::TaggedNumber::Is(varConst))
{
// the typeid should be TypeIds_Number, determine this directly from const table
}
else
{
jitBody->constTableContent->content[reg - Js::FunctionBody::FirstRegSlot] = (RecyclableObjectIDL*)varConst;
}
}
}
}
