llvm-project/lldb/tools/lldb-mi/MICmdCmdFile.cpp

//===-- MICmdCmdFile.cpp ----------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

//++
// File:		MICmdCmdFile.cpp
//
// Overview:	CMICmdCmdFileExecAndSymbols		implementation.
//
// Environment:	Compilers:	Visual C++ 12.
//							gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
//				Libraries:	See MIReadmetxt. 
//
// Copyright:	None.
//--

// Third Party Headers:
#include <lldb/API/SBStream.h>

// In-house headers:
#include "MICmnConfig.h"
#include "MICmdCmdFile.h"
#include "MICmnMIResultRecord.h"
#include "MICmnMIValueConst.h"
#include "MICmnLLDBDebugger.h"
#include "MICmnLLDBDebugSessionInfo.h"
#include "MIUtilFileStd.h"
#include "MICmdArgContext.h"
#include "MICmdArgValFile.h"
#include "MICmdArgValNumber.h"
#include "MICmdArgValString.h"
#include "MICmdArgValThreadGrp.h"
#include "MICmdArgValOptionLong.h"
#include "MICmdArgValOptionShort.h"
#include "MICmdArgValListOfN.h"

//++ ------------------------------------------------------------------------------------
// Details:	CMICmdCmdFileExecAndSymbols constructor.
// Type:	Method.
// Args:	None.
// Return:	None.
// Throws:	None.
//--
CMICmdCmdFileExecAndSymbols::CMICmdCmdFileExecAndSymbols( void )
:	m_constStrArgNameFile( "file" )
,	m_constStrArgThreadGrp( "thread-group" )
{
	// Command factory matches this name with that received from the stdin stream
	m_strMiCmd = "file-exec-and-symbols";
	
	// Required by the CMICmdFactory when registering *this commmand
	m_pSelfCreatorFn = &CMICmdCmdFileExecAndSymbols::CreateSelf;
}

//++ ------------------------------------------------------------------------------------
// Details:	CMICmdCmdFileExecAndSymbols destructor.
// Type:	Overrideable.
// Args:	None.
// Return:	None.
// Throws:	None.
//--
CMICmdCmdFileExecAndSymbols::~CMICmdCmdFileExecAndSymbols( void )
{
}

//++ ------------------------------------------------------------------------------------
// Details:	The invoker requires this function. The parses the command line options 
//			arguments to extract values for each of those arguments.
// Type:	Overridden.
// Args:	None.
// Return:	MIstatus::success - Functional succeeded.
//			MIstatus::failure - Functional failed.
// Throws:	None.
//--
bool CMICmdCmdFileExecAndSymbols::ParseArgs( void )
{
	bool bOk = m_setCmdArgs.Add( *(new CMICmdArgValOptionLong( m_constStrArgThreadGrp, false, false, CMICmdArgValListBase::eArgValType_ThreadGrp, 1 ) ) );
	bOk = bOk && m_setCmdArgs.Add( *(new CMICmdArgValFile( m_constStrArgNameFile, true, true ) ) );
	CMICmdArgContext argCntxt( m_cmdData.strMiCmdOption );
	if( bOk && !m_setCmdArgs.Validate( m_cmdData.strMiCmd, argCntxt ) )
	{
		SetError( CMIUtilString::Format( MIRSRC( IDS_CMD_ERR_ARGS ), m_cmdData.strMiCmd.c_str(), m_setCmdArgs.GetErrorDescription().c_str() ) );
		return MIstatus::failure;
	}

	return bOk;
}

//++ ------------------------------------------------------------------------------------
// Details:	The invoker requires this function. The command does work in this function.
//			The command is likely to communicate with the LLDB SBDebugger in here.
//			Synopsis: -file-exec-and-symbols file
//			Ref: http://sourceware.org/gdb/onlinedocs/gdb/GDB_002fMI-File-Commands.html#GDB_002fMI-File-Commands
// Type:	Overridden.
// Args:	None.
// Return:	MIstatus::success - Functional succeeded.
//			MIstatus::failure - Functional failed.
// Throws:	None.
//--
bool CMICmdCmdFileExecAndSymbols::Execute( void )
{
	CMICMDBASE_GETOPTION( pArgNamedFile, File, m_constStrArgNameFile );
	CMICmdArgValFile * pArgFile = static_cast< CMICmdArgValFile * >( pArgNamedFile );
	const CMIUtilString & strExeFilePath( pArgFile->GetValue() );
	CMICmnLLDBDebugSessionInfo & rSessionInfo( CMICmnLLDBDebugSessionInfo::Instance() );
	lldb::SBDebugger & rDbgr = rSessionInfo.m_rLldbDebugger;
	lldb::SBError error;                                                            
	const char * pTargetTriple = nullptr;           // Let LLDB discover the triple required
	const char * pTargetPlatformName = "";
	const bool bAddDepModules = false;
	lldb::SBTarget target = rDbgr.CreateTarget( strExeFilePath.c_str(), pTargetTriple, pTargetPlatformName, bAddDepModules, error );
	CMIUtilString strWkDir;
	const CMIUtilString & rStrKeyWkDir( rSessionInfo.m_constStrSharedDataKeyWkDir );
	if(	!rSessionInfo.SharedDataRetrieve( rStrKeyWkDir, strWkDir ) )
	{
		strWkDir = CMIUtilFileStd().StripOffFileName( strExeFilePath );
		if( !rSessionInfo.SharedDataAdd( rStrKeyWkDir, strWkDir ) )
		{
			SetError( CMIUtilString::Format( MIRSRC( IDS_DBGSESSION_ERR_SHARED_DATA_ADD ), m_cmdData.strMiCmd.c_str(), rStrKeyWkDir.c_str() ) );
			return MIstatus::failure;
		}		
	}
	if( !rDbgr.SetCurrentPlatformSDKRoot( strWkDir.c_str() ) )
	{

		SetError( CMIUtilString::Format( MIRSRC( IDS_CMD_ERR_FNFAILED ), m_cmdData.strMiCmd.c_str(), "SetCurrentPlatformSDKRoot()" ) );
		return MIstatus::failure;
	}
	lldb::SBStream err;
	if( error.Fail() )
		const bool bOk = error.GetDescription( err );
	if( !target.IsValid() )
	{
		SetError( CMIUtilString::Format( MIRSRC( IDS_CMD_ERR_INVALID_TARGET ), m_cmdData.strMiCmd.c_str(), strExeFilePath.c_str(), err.GetData() ) );
		return MIstatus::failure;
	}
	if( error.Fail() )
	{
		SetError( CMIUtilString::Format( MIRSRC( IDS_CMD_ERR_CREATE_TARGET ), m_cmdData.strMiCmd.c_str(), err.GetData() ) );
		return MIstatus::failure;
	}

	rSessionInfo.m_lldbTarget = target;

	return MIstatus::success;
}

//++ ------------------------------------------------------------------------------------
// Details:	The invoker requires this function. The command prepares a MI Record Result
//			for the work carried out in the Execute().
// Type:	Overridden.
// Args:	None.
// Return:	MIstatus::success - Functional succeeded.
//			MIstatus::failure - Functional failed.
// Throws:	None.
//--
bool CMICmdCmdFileExecAndSymbols::Acknowledge( void )
{
	const CMICmnMIResultRecord miRecordResult( m_cmdData.nMiCmdNumber, CMICmnMIResultRecord::eResultClass_Done );
	m_miResultRecord = miRecordResult;

	return MIstatus::success;
}

//++ ------------------------------------------------------------------------------------
// Details:	Required by the CMICmdFactory when registering *this commmand. The factory
//			calls this function to create an instance of *this command.
// Type:	Static method.
// Args:	None.
// Return:	CMICmdBase * - Pointer to a new command.
// Throws:	None.
//--
CMICmdBase * CMICmdCmdFileExecAndSymbols::CreateSelf( void )
{
	return new CMICmdCmdFileExecAndSymbols();
}