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

293 lines
10 KiB
C++

//===-- MICmdBase.cpp -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// In-house headers:
#include "MICmdBase.h"
#include "MICmdArgValConsume.h"
#include "MICmdArgValOptionLong.h"
#include "MICmnLLDBDebugSessionInfo.h"
#include "MICmnMIValueConst.h"
//++
//------------------------------------------------------------------------------------
// Details: CMICmdBase constructor.
// Type: Method.
// Args: None.
// Return: None.
// Throws: None.
//--
CMICmdBase::CMICmdBase()
: m_pSelfCreatorFn(nullptr),
m_rLLDBDebugSessionInfo(CMICmnLLDBDebugSessionInfo::Instance()),
m_bHasResultRecordExtra(false), m_constStrArgThreadGroup("thread-group"),
m_constStrArgThread("thread"), m_constStrArgFrame("frame"),
m_constStrArgConsume("--"), m_ThreadGrpArgMandatory(false),
m_ThreadArgMandatory(false), m_FrameArgMandatory(false) {}
//++
//------------------------------------------------------------------------------------
// Details: CMICmdBase destructor.
// Type: Overrideable.
// Args: None.
// Return: None.
// Throws: None.
//--
CMICmdBase::~CMICmdBase() {}
//++
//------------------------------------------------------------------------------------
// Details: The invoker requires this function.
// Type: Overridden.
// Args: None.
// Return: SMICmdData & - *this command's present status/data/information.
// Throws: None.
//--
const SMICmdData &CMICmdBase::GetCmdData() const { return m_cmdData; }
//++
//------------------------------------------------------------------------------------
// Details: The invoker requires this function.
// Type: Overridden.
// Args: None.
// Return: CMIUtilString & - *this command's current error description.
// Empty string indicates command status ok.
// Throws: None.
//--
const CMIUtilString &CMICmdBase::GetErrorDescription() const {
return m_strCurrentErrDescription;
}
//++
//------------------------------------------------------------------------------------
// Details: The CMICmdFactory requires this function. Retrieve the command and
// argument
// options description string.
// Type: Overridden.
// Args: None.
// Return: CMIUtilString & - Command description.
// Throws: None.
//--
const CMIUtilString &CMICmdBase::GetMiCmd() const { return m_strMiCmd; }
//++
//------------------------------------------------------------------------------------
// Details: Help parse the arguments that are common to all commands.
// Args: None.
// Return: None
// Throws: None.
//--
void CMICmdBase::AddCommonArgs() {
m_setCmdArgs.Add(new CMICmdArgValOptionLong(
m_constStrArgThreadGroup, m_ThreadGrpArgMandatory, true,
CMICmdArgValListBase::eArgValType_ThreadGrp, 1));
m_setCmdArgs.Add(new CMICmdArgValOptionLong(
m_constStrArgThread, m_ThreadArgMandatory, true,
CMICmdArgValListBase::eArgValType_Number, 1));
m_setCmdArgs.Add(
new CMICmdArgValOptionLong(m_constStrArgFrame, m_FrameArgMandatory, true,
CMICmdArgValListBase::eArgValType_Number, 1));
m_setCmdArgs.Add(new CMICmdArgValConsume(m_constStrArgConsume, false));
}
//++
//------------------------------------------------------------------------------------
// Details: The invoker requires this function. A command must be given working
// data and
// provide data about its status or provide information to other
// objects.
// Type: Overridden.
// Args: None.
// Return: None.
// Throws: None.
//--
void CMICmdBase::SetCmdData(const SMICmdData &vCmdData) {
m_cmdData = vCmdData;
}
//++
//------------------------------------------------------------------------------------
// Details: The command factory requires this function. The factory calls this
// function
// so it can obtain *this command's creation function.
// Type: Overridden.
// Args: None.
// Return: CMICmdFactory::CmdCreatorFnPtr - Function pointer.
// Throws: None.
//--
CMICmdFactory::CmdCreatorFnPtr CMICmdBase::GetCmdCreatorFn() const {
return m_pSelfCreatorFn;
}
//++
//------------------------------------------------------------------------------------
// Details: If a command is an event type (has callbacks registered with
// SBListener) it
// needs to inform the Invoker that it has finished its work so that
// the
// Invoker can tidy up and call the commands Acknowledge function (yes
// the
// command itself could call the Acknowledge itself but not doing that
// way).
// Type: Overridden.
// Args: None.
// Return: None.
// Throws: None.
//--
void CMICmdBase::CmdFinishedTellInvoker() const {
CMICmdInvoker::Instance().CmdExecuteFinished(const_cast<CMICmdBase &>(*this));
}
//++
//------------------------------------------------------------------------------------
// Details: Returns the final version of the MI result record built up in the
// command's
// Acknowledge function. The one line text of MI result.
// Type: Overridden.
// Args: None.
// Return: CMIUtilString & - MI text version of the MI result record.
// Throws: None.
//--
const CMIUtilString &CMICmdBase::GetMIResultRecord() const {
return m_miResultRecord.GetString();
}
//++
//------------------------------------------------------------------------------------
// Details: Retrieve from the command additional MI result to its 1 line
// response.
// Because of using LLDB additional 'fake'/hack output is sometimes
// required to
// help the driver client operate i.e. Eclipse.
// Type: Overridden.
// Args: None.
// Return: CMIUtilString & - MI text version of the MI result record.
// Throws: None.
//--
const CMIUtilString &CMICmdBase::GetMIResultRecordExtra() const {
return m_miResultRecordExtra;
}
//++
//------------------------------------------------------------------------------------
// Details: Hss *this command got additional MI result to its 1 line response.
// Because of using LLDB additional 'fake'/hack output is sometimes
// required to
// help the driver client operate i.e. Eclipse.
// Type: Overridden.
// Args: None.
// Return: bool - True = Yes have additional MI output, false = no nothing
// extra.
// Throws: None.
//--
bool CMICmdBase::HasMIResultRecordExtra() const {
return m_bHasResultRecordExtra;
}
//++
//------------------------------------------------------------------------------------
// Details: Short cut function to enter error information into the command's
// metadata
// object and set the command's error status.
// Type: Method.
// Args: rErrMsg - (R) Status description.
// Return: None.
// Throws: None.
//--
void CMICmdBase::SetError(const CMIUtilString &rErrMsg) {
m_cmdData.bCmdValid = false;
m_cmdData.strErrorDescription = rErrMsg;
m_cmdData.bCmdExecutedSuccessfully = false;
const CMICmnMIValueResult valueResult("msg", CMICmnMIValueConst(rErrMsg));
const CMICmnMIResultRecord miResultRecord(
m_cmdData.strMiCmdToken, CMICmnMIResultRecord::eResultClass_Error,
valueResult);
m_miResultRecord = miResultRecord;
m_cmdData.strMiCmdResultRecord = miResultRecord.GetString();
}
//++
//------------------------------------------------------------------------------------
// Details: Ask a command to provide its unique identifier.
// Type: Method.
// Args: A unique identifier for this command class.
// Return: None.
// Throws: None.
//--
MIuint CMICmdBase::GetGUID() {
MIuint64 vptr = reinterpret_cast<MIuint64>(this);
MIuint id = (vptr)&0xFFFFFFFF;
id ^= (vptr >> 32) & 0xFFFFFFFF;
return id;
}
//++
//------------------------------------------------------------------------------------
// 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 CMICmdBase::ParseArgs() {
// Do nothing - override to implement
return MIstatus::success;
}
//++
//------------------------------------------------------------------------------------
// Details: Having previously given CMICmdArgSet m_setCmdArgs all the argument
// or option
// definitions for the command to handle proceed to parse and validate
// the
// command's options text for those arguments and extract the values
// for each if
// any.
// Type: Method.
// Args: None.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed.
// Throws: None.
//--
bool CMICmdBase::ParseValidateCmdOptions() {
CMICmdArgContext argCntxt(m_cmdData.strMiCmdOption);
if (m_setCmdArgs.Validate(m_cmdData.strMiCmd, argCntxt))
return MIstatus::success;
SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_ARGS),
m_cmdData.strMiCmd.c_str(),
m_setCmdArgs.GetErrorDescription().c_str()));
return MIstatus::failure;
}
//++
//------------------------------------------------------------------------------------
// 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: Overrideable.
// Args: None.
// Return: bool - True = Fatal if command fails, false = can continue if
// command fails.
// Throws: None.
//--
bool CMICmdBase::GetExitAppOnCommandFailure() const { return false; }