llvm-project/lldb/source/Target/ThreadPlanCallFunctionUsing...

92 lines
3.0 KiB
C++

//===-- ThreadPlanCallFunctionUsingABI.cpp ------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/ThreadPlanCallFunctionUsingABI.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/Address.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Stream.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
using namespace lldb;
using namespace lldb_private;
//--------------------------------------------------------------------------------------------
// ThreadPlanCallFunctionUsingABI: Plan to call a single function using the ABI instead of JIT
//-------------------------------------------------------------------------------------------
ThreadPlanCallFunctionUsingABI::ThreadPlanCallFunctionUsingABI (Thread &thread,
const Address &function,
llvm::Type &prototype,
llvm::Type &return_type,
llvm::ArrayRef<ABI::CallArgument> args,
const EvaluateExpressionOptions &options) :
ThreadPlanCallFunction(thread,function,options),
m_return_type(return_type)
{
lldb::addr_t start_load_addr = LLDB_INVALID_ADDRESS;
lldb::addr_t function_load_addr = LLDB_INVALID_ADDRESS;
ABI *abi = nullptr;
if (!ConstructorSetup(thread, abi, start_load_addr, function_load_addr))
return;
if (!abi->PrepareTrivialCall(thread,
m_function_sp,
function_load_addr,
start_load_addr,
prototype,
args))
return;
ReportRegisterState("ABI Function call was set up. Register state was:");
m_valid = true;
}
ThreadPlanCallFunctionUsingABI::~ThreadPlanCallFunctionUsingABI()
{
}
void
ThreadPlanCallFunctionUsingABI::GetDescription(Stream *s, DescriptionLevel level)
{
if (level == eDescriptionLevelBrief)
{
s->Printf("Function call thread plan using ABI instead of JIT");
}
else
{
TargetSP target_sp(m_thread.CalculateTarget());
s->Printf("Thread plan to call 0x%" PRIx64" using ABI instead of JIT", m_function_addr.GetLoadAddress(target_sp.get()));
}
}
void
ThreadPlanCallFunctionUsingABI::SetReturnValue()
{
ProcessSP process_sp(m_thread.GetProcess());
const ABI *abi = process_sp ? process_sp->GetABI().get() : NULL;
// Ask the abi for the return value
if (abi)
{
const bool persistent = false;
m_return_valobj_sp = abi->GetReturnValueObject(m_thread, m_return_type, persistent);
}
}