// this code relies on the assumption that an Objective-C object always starts
// with an ISA at offset 0.
ObjCLanguageRuntime::ObjCISA
AppleObjCRuntimeV1::GetISA(ValueObject& valobj)
{
if (ClangASTType::GetMinimumLanguage(valobj.GetClangAST(),valobj.GetClangType()) != eLanguageTypeObjC)
return 0;
// if we get an invalid VO (which might still happen when playing around
// with pointers returned by the expression parser, don't consider this
// a valid ObjC object)
if (valobj.GetValue().GetContextType() == Value::eContextTypeInvalid)
return 0;
addr_t isa_pointer = valobj.GetPointerValue();
ExecutionContext exe_ctx (valobj.GetExecutionContextRef());
Process *process = exe_ctx.GetProcessPtr();
if (process)
{
uint8_t pointer_size = process->GetAddressByteSize();
Error error;
return process->ReadUnsignedIntegerFromMemory (isa_pointer,
pointer_size,
0,
error);
}
return 0;
}
bool
ClangFunction::FetchFunctionResults (ExecutionContext &exe_ctx, lldb::addr_t args_addr, Value &ret_value)
{
// Read the return value - it is the last field in the struct:
// FIXME: How does clang tell us there's no return value? We need to handle that case.
// FIXME: Create our ThreadPlanCallFunction with the return CompilerType, and then use GetReturnValueObject
// to fetch the value. That way we can fetch any values we need.
Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
if (log)
log->Printf("-- [ClangFunction::FetchFunctionResults] Fetching function results for \"%s\"--", m_name.c_str());
Process *process = exe_ctx.GetProcessPtr();
if (process == NULL)
return false;
lldb::ProcessSP jit_process_sp(m_jit_process_wp.lock());
if (process != jit_process_sp.get())
return false;
Error error;
ret_value.GetScalar() = process->ReadUnsignedIntegerFromMemory (args_addr + m_return_offset, m_return_size, 0, error);
if (error.Fail())
return false;
ret_value.SetCompilerType(m_function_return_type);
ret_value.SetValueType(Value::eValueTypeScalar);
return true;
}
bool
ClangFunction::FetchFunctionResults (ExecutionContext &exe_ctx, lldb::addr_t args_addr, Value &ret_value)
{
// Read the return value - it is the last field in the struct:
// FIXME: How does clang tell us there's no return value? We need to handle that case.
// FIXME: Create our ThreadPlanCallFunction with the return ClangASTType, and then use GetReturnValueObject
// to fetch the value. That way we can fetch any values we need.
Process *process = exe_ctx.GetProcessPtr();
if (process == NULL)
return false;
if (process != m_jit_process_sp.get())
return false;
Error error;
ret_value.GetScalar() = process->ReadUnsignedIntegerFromMemory (args_addr + m_return_offset, m_return_size, 0, error);
if (error.Fail())
return false;
ret_value.SetContext (Value::eContextTypeClangType, m_function_return_qual_type);
ret_value.SetValueType(Value::eValueTypeScalar);
return true;
}