llvm-project/lldb/source/Commands/CommandObjectTarget.cpp

492 lines
17 KiB
C++

//===-- CommandObjectTarget.cpp ---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "CommandObjectTarget.h"
// C Includes
#include <errno.h>
#include <sys/errno.h>
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Interpreter/Args.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Core/Timer.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/StackFrame.h"
#include "lldb/Target/Thread.h"
using namespace lldb;
using namespace lldb_private;
#pragma mark CommandObjectTargetImageSearchPaths
class CommandObjectTargetImageSearchPathsAdd : public CommandObject
{
public:
CommandObjectTargetImageSearchPathsAdd (CommandInterpreter &interpreter) :
CommandObject (interpreter,
"target image-search-paths add",
"Add new image search paths substitution pairs to the current target.",
NULL)
{
CommandArgumentEntry arg;
CommandArgumentData old_prefix_arg;
CommandArgumentData new_prefix_arg;
// Define the first variant of this arg pair.
old_prefix_arg.arg_type = eArgTypeOldPathPrefix;
old_prefix_arg.arg_repetition = eArgRepeatPairPlus;
// Define the first variant of this arg pair.
new_prefix_arg.arg_type = eArgTypeNewPathPrefix;
new_prefix_arg.arg_repetition = eArgRepeatPairPlus;
// There are two required arguments that must always occur together, i.e. an argument "pair". Because they
// must always occur together, they are treated as two variants of one argument rather than two independent
// arguments. Push them both into the first argument position for m_arguments...
arg.push_back (old_prefix_arg);
arg.push_back (new_prefix_arg);
m_arguments.push_back (arg);
}
~CommandObjectTargetImageSearchPathsAdd ()
{
}
bool
Execute (Args& command,
CommandReturnObject &result)
{
Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
if (target)
{
uint32_t argc = command.GetArgumentCount();
if (argc & 1)
{
result.AppendError ("add requires an even number of arguments");
result.SetStatus (eReturnStatusFailed);
}
else
{
for (uint32_t i=0; i<argc; i+=2)
{
const char *from = command.GetArgumentAtIndex(i);
const char *to = command.GetArgumentAtIndex(i+1);
if (from[0] && to[0])
{
bool last_pair = ((argc - i) == 2);
target->GetImageSearchPathList().Append (ConstString(from),
ConstString(to),
last_pair); // Notify if this is the last pair
}
else
{
if (from[0])
result.AppendError ("<path-prefix> can't be empty");
else
result.AppendError ("<new-path-prefix> can't be empty");
result.SetStatus (eReturnStatusFailed);
}
}
}
}
else
{
result.AppendError ("invalid target");
result.SetStatus (eReturnStatusFailed);
}
return result.Succeeded();
}
};
class CommandObjectTargetImageSearchPathsClear : public CommandObject
{
public:
CommandObjectTargetImageSearchPathsClear (CommandInterpreter &interpreter) :
CommandObject (interpreter,
"target image-search-paths clear",
"Clear all current image search path substitution pairs from the current target.",
"target image-search-paths clear")
{
}
~CommandObjectTargetImageSearchPathsClear ()
{
}
bool
Execute (Args& command,
CommandReturnObject &result)
{
Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
if (target)
{
bool notify = true;
target->GetImageSearchPathList().Clear(notify);
}
else
{
result.AppendError ("invalid target");
result.SetStatus (eReturnStatusFailed);
}
return result.Succeeded();
}
};
class CommandObjectTargetImageSearchPathsInsert : public CommandObject
{
public:
CommandObjectTargetImageSearchPathsInsert (CommandInterpreter &interpreter) :
CommandObject (interpreter,
"target image-search-paths insert",
"Insert a new image search path substitution pair into the current target at the specified index.",
NULL)
{
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentData index_arg;
CommandArgumentData old_prefix_arg;
CommandArgumentData new_prefix_arg;
// Define the first and only variant of this arg.
index_arg.arg_type = eArgTypeIndex;
index_arg.arg_repetition = eArgRepeatPlain;
// Put the one and only variant into the first arg for m_arguments:
arg1.push_back (index_arg);
// Define the first variant of this arg pair.
old_prefix_arg.arg_type = eArgTypeOldPathPrefix;
old_prefix_arg.arg_repetition = eArgRepeatPairPlus;
// Define the first variant of this arg pair.
new_prefix_arg.arg_type = eArgTypeNewPathPrefix;
new_prefix_arg.arg_repetition = eArgRepeatPairPlus;
// There are two required arguments that must always occur together, i.e. an argument "pair". Because they
// must always occur together, they are treated as two variants of one argument rather than two independent
// arguments. Push them both into the same argument position for m_arguments...
arg2.push_back (old_prefix_arg);
arg2.push_back (new_prefix_arg);
// Add arguments to m_arguments.
m_arguments.push_back (arg1);
m_arguments.push_back (arg2);
}
~CommandObjectTargetImageSearchPathsInsert ()
{
}
bool
Execute (Args& command,
CommandReturnObject &result)
{
Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
if (target)
{
uint32_t argc = command.GetArgumentCount();
// check for at least 3 arguments and an odd nubmer of parameters
if (argc >= 3 && argc & 1)
{
bool success = false;
uint32_t insert_idx = Args::StringToUInt32(command.GetArgumentAtIndex(0), UINT32_MAX, 0, &success);
if (!success)
{
result.AppendErrorWithFormat("<index> parameter is not an integer: '%s'.\n", command.GetArgumentAtIndex(0));
result.SetStatus (eReturnStatusFailed);
return result.Succeeded();
}
// shift off the index
command.Shift();
argc = command.GetArgumentCount();
for (uint32_t i=0; i<argc; i+=2, ++insert_idx)
{
const char *from = command.GetArgumentAtIndex(i);
const char *to = command.GetArgumentAtIndex(i+1);
if (from[0] && to[0])
{
bool last_pair = ((argc - i) == 2);
target->GetImageSearchPathList().Insert (ConstString(from),
ConstString(to),
insert_idx,
last_pair);
}
else
{
if (from[0])
result.AppendError ("<path-prefix> can't be empty");
else
result.AppendError ("<new-path-prefix> can't be empty");
result.SetStatus (eReturnStatusFailed);
return false;
}
}
}
else
{
result.AppendError ("insert requires at least three arguments");
result.SetStatus (eReturnStatusFailed);
return result.Succeeded();
}
}
else
{
result.AppendError ("invalid target");
result.SetStatus (eReturnStatusFailed);
}
return result.Succeeded();
}
};
class CommandObjectTargetImageSearchPathsList : public CommandObject
{
public:
CommandObjectTargetImageSearchPathsList (CommandInterpreter &interpreter) :
CommandObject (interpreter,
"target image-search-paths list",
"List all current image search path substitution pairs in the current target.",
"target image-search-paths list")
{
}
~CommandObjectTargetImageSearchPathsList ()
{
}
bool
Execute (Args& command,
CommandReturnObject &result)
{
Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
if (target)
{
if (command.GetArgumentCount() != 0)
{
result.AppendError ("list takes no arguments");
result.SetStatus (eReturnStatusFailed);
return result.Succeeded();
}
target->GetImageSearchPathList().Dump(&result.GetOutputStream());
}
else
{
result.AppendError ("invalid target");
result.SetStatus (eReturnStatusFailed);
}
return result.Succeeded();
}
};
class CommandObjectTargetImageSearchPathsQuery : public CommandObject
{
public:
CommandObjectTargetImageSearchPathsQuery (CommandInterpreter &interpreter) :
CommandObject (interpreter,
"target image-search-paths query",
"Transform a path using the first applicable image search path.",
NULL)
{
CommandArgumentEntry arg;
CommandArgumentData path_arg;
// Define the first (and only) variant of this arg.
path_arg.arg_type = eArgTypePath;
path_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the argument entry.
arg.push_back (path_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back (arg);
}
~CommandObjectTargetImageSearchPathsQuery ()
{
}
bool
Execute (Args& command,
CommandReturnObject &result)
{
Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
if (target)
{
if (command.GetArgumentCount() != 1)
{
result.AppendError ("query requires one argument");
result.SetStatus (eReturnStatusFailed);
return result.Succeeded();
}
ConstString orig(command.GetArgumentAtIndex(0));
ConstString transformed;
if (target->GetImageSearchPathList().RemapPath(orig, transformed))
result.GetOutputStream().Printf("%s\n", transformed.GetCString());
else
result.GetOutputStream().Printf("%s\n", orig.GetCString());
}
else
{
result.AppendError ("invalid target");
result.SetStatus (eReturnStatusFailed);
}
return result.Succeeded();
}
};
// TODO: implement the target select later when we start doing multiple targets
//#pragma mark CommandObjectTargetSelect
//
////-------------------------------------------------------------------------
//// CommandObjectTargetSelect
////-------------------------------------------------------------------------
//
//class CommandObjectTargetSelect : public CommandObject
//{
//public:
//
// CommandObjectTargetSelect () :
// CommandObject (interpreter,
// frame select",
// "Select the current frame by index in the current thread.",
// "frame select <frame-index>")
// {
// }
//
// ~CommandObjectTargetSelect ()
// {
// }
//
// bool
// Execute (Args& command,
// Debugger *context,
// CommandInterpreter &m_interpreter,
// CommandReturnObject &result)
// {
// ExecutionContext exe_ctx (context->GetExecutionContext());
// if (exe_ctx.thread)
// {
// if (command.GetArgumentCount() == 1)
// {
// const char *frame_idx_cstr = command.GetArgumentAtIndex(0);
//
// const uint32_t num_frames = exe_ctx.thread->GetStackFrameCount();
// const uint32_t frame_idx = Args::StringToUInt32 (frame_idx_cstr, UINT32_MAX, 0);
// if (frame_idx < num_frames)
// {
// exe_ctx.thread->SetSelectedFrameByIndex (frame_idx);
// exe_ctx.frame = exe_ctx.thread->GetSelectedFrame ().get();
//
// if (exe_ctx.frame)
// {
// if (DisplayFrameForExecutionContext (exe_ctx.thread,
// exe_ctx.frame,
// m_interpreter,
// result.GetOutputStream(),
// true,
// true,
// 3,
// 3))
// {
// result.SetStatus (eReturnStatusSuccessFinishResult);
// return result.Succeeded();
// }
// }
// }
// if (frame_idx == UINT32_MAX)
// result.AppendErrorWithFormat ("Invalid frame index: %s.\n", frame_idx_cstr);
// else
// result.AppendErrorWithFormat ("Frame index (%u) out of range.\n", frame_idx);
// }
// else
// {
// result.AppendError ("invalid arguments");
// result.AppendErrorWithFormat ("Usage: %s\n", m_cmd_syntax.c_str());
// }
// }
// else
// {
// result.AppendError ("no current thread");
// }
// result.SetStatus (eReturnStatusFailed);
// return false;
// }
//};
#pragma mark CommandObjectMultiwordTarget
//-------------------------------------------------------------------------
// CommandObjectMultiwordImageSearchPaths
//-------------------------------------------------------------------------
class CommandObjectMultiwordImageSearchPaths : public CommandObjectMultiword
{
public:
CommandObjectMultiwordImageSearchPaths (CommandInterpreter &interpreter) :
CommandObjectMultiword (interpreter,
"target image-search-paths",
"A set of commands for operating on debugger target image search paths.",
"target image-search-paths <subcommand> [<subcommand-options>]")
{
LoadSubCommand ("add", CommandObjectSP (new CommandObjectTargetImageSearchPathsAdd (interpreter)));
LoadSubCommand ("clear", CommandObjectSP (new CommandObjectTargetImageSearchPathsClear (interpreter)));
LoadSubCommand ("insert", CommandObjectSP (new CommandObjectTargetImageSearchPathsInsert (interpreter)));
LoadSubCommand ("list", CommandObjectSP (new CommandObjectTargetImageSearchPathsList (interpreter)));
LoadSubCommand ("query", CommandObjectSP (new CommandObjectTargetImageSearchPathsQuery (interpreter)));
}
~CommandObjectMultiwordImageSearchPaths()
{
}
};
#pragma mark CommandObjectMultiwordTarget
//-------------------------------------------------------------------------
// CommandObjectMultiwordTarget
//-------------------------------------------------------------------------
CommandObjectMultiwordTarget::CommandObjectMultiwordTarget (CommandInterpreter &interpreter) :
CommandObjectMultiword (interpreter,
"target",
"A set of commands for operating on debugger targets.",
"target <subcommand> [<subcommand-options>]")
{
LoadSubCommand ("image-search-paths", CommandObjectSP (new CommandObjectMultiwordImageSearchPaths (interpreter)));
}
CommandObjectMultiwordTarget::~CommandObjectMultiwordTarget ()
{
}