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#include "ObjC.h"
using namespace BinaryNinja;
using namespace DSCObjC;
using namespace SharedCacheCore;
DSCObjCReader::DSCObjCReader(SharedCache* cache, size_t addressSize) :
m_reader(VMReader(cache->GetVMMap())), m_addressSize(addressSize)
{
}
void DSCObjCReader::Read(void* dest, size_t len)
{
m_reader.Read(dest, len);
}
std::string DSCObjCReader::ReadCString()
{
return m_reader.ReadCString(m_reader.GetOffset());
}
uint8_t DSCObjCReader::Read8()
{
return m_reader.Read8();
}
uint16_t DSCObjCReader::Read16()
{
return m_reader.Read16();
}
uint32_t DSCObjCReader::Read32()
{
return m_reader.Read32();
}
uint64_t DSCObjCReader::Read64()
{
return m_reader.Read64();
}
int8_t DSCObjCReader::ReadS8()
{
return m_reader.ReadS8();
}
int16_t DSCObjCReader::ReadS16()
{
return m_reader.ReadS16();
}
int32_t DSCObjCReader::ReadS32()
{
return m_reader.ReadS32();
}
int64_t DSCObjCReader::ReadS64()
{
return m_reader.ReadS64();
}
uint64_t DSCObjCReader::ReadPointer()
{
return m_reader.ReadPointer();
}
uint64_t DSCObjCReader::GetOffset() const
{
return m_reader.GetOffset();
}
void DSCObjCReader::Seek(uint64_t offset)
{
m_reader.Seek(offset);
}
void DSCObjCReader::SeekRelative(int64_t offset)
{
m_reader.SeekRelative(offset);
}
VMReader& DSCObjCReader::GetVMReader()
{
return m_reader;
}
std::shared_ptr<ObjCReader> DSCObjCProcessor::GetReader()
{
return std::make_shared<DSCObjCReader>(m_cache, m_data->GetAddressSize());
}
void DSCObjCProcessor::GetRelativeMethod(ObjCReader* reader, method_t& meth)
{
if (m_customRelativeMethodSelectorBase.has_value())
{
meth.name = m_customRelativeMethodSelectorBase.value() + reader->ReadS32();
meth.types = reader->GetOffset() + reader->ReadS32();
meth.imp = reader->GetOffset() + reader->ReadS32();
}
else
{
ObjCProcessor::GetRelativeMethod(reader, meth);
}
}
uint64_t DSCObjCProcessor::GetObjCRelativeMethodBaseAddress(ObjCReader* reader)
{
auto objCRelativeMethodsBaseAddr = m_cache->GetObjCRelativeMethodBaseAddress(static_cast<DSCObjCReader*>(reader)->GetVMReader());
m_customRelativeMethodSelectorBase = objCRelativeMethodsBaseAddr;
return objCRelativeMethodsBaseAddr;
}
DSCObjCProcessor::DSCObjCProcessor(BinaryView* data, SharedCache* cache, bool isBackedByDatabase) :
ObjCProcessor(data, "SharedCache.ObjC", isBackedByDatabase, true), m_cache(cache)
{
}
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