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 "MICmdCmdFile.h"
#include "MICmnMIResultRecord.h"
#include "MICmnLLDBDebugger.h"
#include "MICmnLLDBDebugSessionInfo.h"
#include "MIUtilFileStd.h"
#include "MICmdArgValFile.h"
#include "MICmdArgValOptionLong.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 command
    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)));
    return (bOk && ParseValidateCmdOptions());
}

//++ ------------------------------------------------------------------------------------
// 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 MIchar *pTargetTriple = nullptr; // Let LLDB discover the triple required
    const MIchar *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<CMIUtilString>(rStrKeyWkDir, strWkDir))
    {
        strWkDir = CMIUtilFileStd().StripOffFileName(strExeFilePath);
        if (!rSessionInfo.SharedDataAdd<CMIUtilString>(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);
        MIunused(bOk);
    }
    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.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Done);
    m_miResultRecord = miRecordResult;

    return MIstatus::success;
}

//++ ------------------------------------------------------------------------------------
// Details: Required by the CMICmdFactory when registering *this command. 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();
}

//++ ------------------------------------------------------------------------------------
// Details: If the MI Driver is not operating via a client i.e. Eclipse but say operating
//          on a executable passed in as a argument to the drive then what should the driver
//          do on a command failing? Either continue operating or exit the application.
//          Override this function where a command failure cannot allow the driver to
//          continue operating.
// Type:    Overridden.
// Args:    None.
// Return:  bool - True = Fatal if command fails, false = can continue if command fails.
// Throws:  None.
//--
bool
CMICmdCmdFileExecAndSymbols::GetExitAppOnCommandFailure(void) const
{
    return true;
}