#include "config.h"
#include "JITThunks.h"
#if ENABLE(JIT)
#include "Executable.h"
#include "JIT.h"
#include "VM.h"
#include "Operations.h"
namespace JSC {
JITThunks::JITThunks()
: m_hostFunctionStubMap(adoptPtr(new HostFunctionStubMap))
{
}
JITThunks::~JITThunks()
{
}
MacroAssemblerCodePtr JITThunks::ctiNativeCall(VM* vm)
{
#if ENABLE(LLINT)
if (!vm->canUseJIT())
return MacroAssemblerCodePtr::createLLIntCodePtr(llint_native_call_trampoline);
#endif
return ctiStub(vm, nativeCallGenerator).code();
}
MacroAssemblerCodePtr JITThunks::ctiNativeConstruct(VM* vm)
{
#if ENABLE(LLINT)
if (!vm->canUseJIT())
return MacroAssemblerCodePtr::createLLIntCodePtr(llint_native_construct_trampoline);
#endif
return ctiStub(vm, nativeConstructGenerator).code();
}
MacroAssemblerCodeRef JITThunks::ctiStub(VM* vm, ThunkGenerator generator)
{
CTIStubMap::AddResult entry = m_ctiStubMap.add(generator, MacroAssemblerCodeRef());
if (entry.isNewEntry)
entry.iterator->value = generator(vm);
return entry.iterator->value;
}
NativeExecutable* JITThunks::hostFunctionStub(VM* vm, NativeFunction function, NativeFunction constructor)
{
if (NativeExecutable* nativeExecutable = m_hostFunctionStubMap->get(std::make_pair(*function, *constructor)))
return nativeExecutable;
NativeExecutable* nativeExecutable = NativeExecutable::create(*vm, JIT::compileCTINativeCall(vm, function), function, MacroAssemblerCodeRef::createSelfManagedCodeRef(ctiNativeConstruct(vm)), constructor, NoIntrinsic);
weakAdd(*m_hostFunctionStubMap, std::make_pair(*function, *constructor), PassWeak<NativeExecutable>(nativeExecutable));
return nativeExecutable;
}
NativeExecutable* JITThunks::hostFunctionStub(VM* vm, NativeFunction function, ThunkGenerator generator, Intrinsic intrinsic)
{
if (NativeExecutable* nativeExecutable = m_hostFunctionStubMap->get(std::make_pair(*function, *callHostFunctionAsConstructor)))
return nativeExecutable;
MacroAssemblerCodeRef code;
if (generator) {
if (vm->canUseJIT())
code = generator(vm);
else
code = MacroAssemblerCodeRef();
} else
code = JIT::compileCTINativeCall(vm, function);
NativeExecutable* nativeExecutable = NativeExecutable::create(*vm, code, function, MacroAssemblerCodeRef::createSelfManagedCodeRef(ctiNativeConstruct(vm)), callHostFunctionAsConstructor, intrinsic);
weakAdd(*m_hostFunctionStubMap, std::make_pair(*function, *callHostFunctionAsConstructor), PassWeak<NativeExecutable>(nativeExecutable));
return nativeExecutable;
}
void JITThunks::clearHostFunctionStubs()
{
m_hostFunctionStubMap.clear();
}
}
#endif // ENABLE(JIT)