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llvm-project/lldb/source/Core/Debugger.cpp

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//===-- Debugger.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/lldb-python.h"
#include "lldb/API/SBDebugger.h"
#include "lldb/Core/Debugger.h"
#include <map>
#include "clang/AST/DeclCXX.h"
#include "clang/AST/Type.h"
#include "lldb/lldb-private.h"
#include "lldb/Core/ConnectionFileDescriptor.h"
#include "lldb/Core/InputReader.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegisterValue.h"
#include "lldb/Core/State.h"
#include "lldb/Core/StreamAsynchronousIO.h"
#include "lldb/Core/StreamCallback.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Core/Timer.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Core/ValueObjectVariable.h"
#include "lldb/DataFormatters/DataVisualization.h"
#include "lldb/DataFormatters/FormatManager.h"
#include "lldb/Host/DynamicLibrary.h"
#include "lldb/Host/Terminal.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/OptionValueSInt64.h"
#include "lldb/Interpreter/OptionValueString.h"
#include "lldb/Symbol/ClangASTContext.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Symbol/Function.h"
#include "lldb/Symbol/Symbol.h"
#include "lldb/Symbol/VariableList.h"
#include "lldb/Target/TargetList.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/AnsiTerminal.h"
using namespace lldb;
using namespace lldb_private;
static uint32_t g_shared_debugger_refcount = 0;
static lldb::user_id_t g_unique_id = 1;
#pragma mark Static Functions
static Mutex &
GetDebuggerListMutex ()
{
static Mutex g_mutex(Mutex::eMutexTypeRecursive);
return g_mutex;
}
typedef std::vector<DebuggerSP> DebuggerList;
static DebuggerList &
GetDebuggerList()
{
// hide the static debugger list inside a singleton accessor to avoid
// global init contructors
static DebuggerList g_list;
return g_list;
}
OptionEnumValueElement
g_show_disassembly_enum_values[] =
{
{ Debugger::eStopDisassemblyTypeNever, "never", "Never show disassembly when displaying a stop context."},
{ Debugger::eStopDisassemblyTypeNoSource, "no-source", "Show disassembly when there is no source information, or the source file is missing when displaying a stop context."},
{ Debugger::eStopDisassemblyTypeAlways, "always", "Always show disassembly when displaying a stop context."},
{ 0, NULL, NULL }
};
OptionEnumValueElement
g_language_enumerators[] =
{
{ eScriptLanguageNone, "none", "Disable scripting languages."},
{ eScriptLanguagePython, "python", "Select python as the default scripting language."},
{ eScriptLanguageDefault, "default", "Select the lldb default as the default scripting language."},
{ 0, NULL, NULL }
};
#define MODULE_WITH_FUNC "{ ${module.file.basename}{`${function.name-with-args}${function.pc-offset}}}"
#define FILE_AND_LINE "{ at ${line.file.basename}:${line.number}}"
#define DEFAULT_THREAD_FORMAT "thread #${thread.index}: tid = ${thread.id}"\
"{, ${frame.pc}}"\
MODULE_WITH_FUNC\
FILE_AND_LINE\
"{, name = '${thread.name}}"\
"{, queue = '${thread.queue}}"\
"{, stop reason = ${thread.stop-reason}}"\
"{\\nReturn value: ${thread.return-value}}"\
"\\n"
#define DEFAULT_FRAME_FORMAT "frame #${frame.index}: ${frame.pc}"\
MODULE_WITH_FUNC\
FILE_AND_LINE\
"\\n"
static PropertyDefinition
g_properties[] =
{
{ "auto-confirm", OptionValue::eTypeBoolean, true, false, NULL, NULL, "If true all confirmation prompts will receive their default reply." },
{ "frame-format", OptionValue::eTypeString , true, 0 , DEFAULT_FRAME_FORMAT, NULL, "The default frame format string to use when displaying stack frame information for threads." },
{ "notify-void", OptionValue::eTypeBoolean, true, false, NULL, NULL, "Notify the user explicitly if an expression returns void (default: false)." },
{ "prompt", OptionValue::eTypeString , true, OptionValueString::eOptionEncodeCharacterEscapeSequences, "(lldb) ", NULL, "The debugger command line prompt displayed for the user." },
{ "script-lang", OptionValue::eTypeEnum , true, eScriptLanguagePython, NULL, g_language_enumerators, "The script language to be used for evaluating user-written scripts." },
{ "stop-disassembly-count", OptionValue::eTypeSInt64 , true, 4 , NULL, NULL, "The number of disassembly lines to show when displaying a stopped context." },
{ "stop-disassembly-display", OptionValue::eTypeEnum , true, Debugger::eStopDisassemblyTypeNoSource, NULL, g_show_disassembly_enum_values, "Control when to display disassembly when displaying a stopped context." },
{ "stop-line-count-after", OptionValue::eTypeSInt64 , true, 3 , NULL, NULL, "The number of sources lines to display that come after the current source line when displaying a stopped context." },
{ "stop-line-count-before", OptionValue::eTypeSInt64 , true, 3 , NULL, NULL, "The number of sources lines to display that come before the current source line when displaying a stopped context." },
{ "term-width", OptionValue::eTypeSInt64 , true, 80 , NULL, NULL, "The maximum number of columns to use for displaying text." },
{ "thread-format", OptionValue::eTypeString , true, 0 , DEFAULT_THREAD_FORMAT, NULL, "The default thread format string to use when displaying thread information." },
{ "use-external-editor", OptionValue::eTypeBoolean, true, false, NULL, NULL, "Whether to use an external editor or not." },
{ "use-color", OptionValue::eTypeBoolean, true, true , NULL, NULL, "Whether to use Ansi color codes or not." },
{ NULL, OptionValue::eTypeInvalid, true, 0 , NULL, NULL, NULL }
};
enum
{
ePropertyAutoConfirm = 0,
ePropertyFrameFormat,
ePropertyNotiftVoid,
ePropertyPrompt,
ePropertyScriptLanguage,
ePropertyStopDisassemblyCount,
ePropertyStopDisassemblyDisplay,
ePropertyStopLineCountAfter,
ePropertyStopLineCountBefore,
ePropertyTerminalWidth,
ePropertyThreadFormat,
ePropertyUseExternalEditor,
ePropertyUseColor,
};
//
//const char *
//Debugger::GetFrameFormat() const
//{
// return m_properties_sp->GetFrameFormat();
//}
//const char *
//Debugger::GetThreadFormat() const
//{
// return m_properties_sp->GetThreadFormat();
//}
//
Error
Debugger::SetPropertyValue (const ExecutionContext *exe_ctx,
VarSetOperationType op,
const char *property_path,
const char *value)
{
bool is_load_script = strcmp(property_path,"target.load-script-from-symbol-file") == 0;
TargetSP target_sp;
LoadScriptFromSymFile load_script_old_value;
if (is_load_script && exe_ctx->GetTargetSP())
{
target_sp = exe_ctx->GetTargetSP();
load_script_old_value = target_sp->TargetProperties::GetLoadScriptFromSymbolFile();
}
Error error (Properties::SetPropertyValue (exe_ctx, op, property_path, value));
if (error.Success())
{
// FIXME it would be nice to have "on-change" callbacks for properties
if (strcmp(property_path, g_properties[ePropertyPrompt].name) == 0)
{
const char *new_prompt = GetPrompt();
std::string str = lldb_utility::ansi::FormatAnsiTerminalCodes (new_prompt, GetUseColor());
if (str.length())
new_prompt = str.c_str();
EventSP prompt_change_event_sp (new Event(CommandInterpreter::eBroadcastBitResetPrompt, new EventDataBytes (new_prompt)));
GetCommandInterpreter().BroadcastEvent (prompt_change_event_sp);
}
else if (strcmp(property_path, g_properties[ePropertyUseColor].name) == 0)
{
// use-color changed. Ping the prompt so it can reset the ansi terminal codes.
SetPrompt (GetPrompt());
}
else if (is_load_script && target_sp && load_script_old_value == eLoadScriptFromSymFileWarn)
{
if (target_sp->TargetProperties::GetLoadScriptFromSymbolFile() == eLoadScriptFromSymFileTrue)
{
std::list<Error> errors;
StreamString feedback_stream;
if (!target_sp->LoadScriptingResources(errors,&feedback_stream))
{
for (auto error : errors)
{
GetErrorStream().Printf("%s\n",error.AsCString());
}
if (feedback_stream.GetSize())
GetErrorStream().Printf("%s",feedback_stream.GetData());
}
}
}
}
return error;
}
bool
Debugger::GetAutoConfirm () const
{
const uint32_t idx = ePropertyAutoConfirm;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
const char *
Debugger::GetFrameFormat() const
{
const uint32_t idx = ePropertyFrameFormat;
return m_collection_sp->GetPropertyAtIndexAsString (NULL, idx, g_properties[idx].default_cstr_value);
}
bool
Debugger::GetNotifyVoid () const
{
const uint32_t idx = ePropertyNotiftVoid;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
const char *
Debugger::GetPrompt() const
{
const uint32_t idx = ePropertyPrompt;
return m_collection_sp->GetPropertyAtIndexAsString (NULL, idx, g_properties[idx].default_cstr_value);
}
void
Debugger::SetPrompt(const char *p)
{
const uint32_t idx = ePropertyPrompt;
m_collection_sp->SetPropertyAtIndexAsString (NULL, idx, p);
const char *new_prompt = GetPrompt();
std::string str = lldb_utility::ansi::FormatAnsiTerminalCodes (new_prompt, GetUseColor());
if (str.length())
new_prompt = str.c_str();
EventSP prompt_change_event_sp (new Event(CommandInterpreter::eBroadcastBitResetPrompt, new EventDataBytes (new_prompt)));;
GetCommandInterpreter().BroadcastEvent (prompt_change_event_sp);
}
const char *
Debugger::GetThreadFormat() const
{
const uint32_t idx = ePropertyThreadFormat;
return m_collection_sp->GetPropertyAtIndexAsString (NULL, idx, g_properties[idx].default_cstr_value);
}
lldb::ScriptLanguage
Debugger::GetScriptLanguage() const
{
const uint32_t idx = ePropertyScriptLanguage;
return (lldb::ScriptLanguage)m_collection_sp->GetPropertyAtIndexAsEnumeration (NULL, idx, g_properties[idx].default_uint_value);
}
bool
Debugger::SetScriptLanguage (lldb::ScriptLanguage script_lang)
{
const uint32_t idx = ePropertyScriptLanguage;
return m_collection_sp->SetPropertyAtIndexAsEnumeration (NULL, idx, script_lang);
}
uint32_t
Debugger::GetTerminalWidth () const
{
const uint32_t idx = ePropertyTerminalWidth;
return m_collection_sp->GetPropertyAtIndexAsSInt64 (NULL, idx, g_properties[idx].default_uint_value);
}
bool
Debugger::SetTerminalWidth (uint32_t term_width)
{
const uint32_t idx = ePropertyTerminalWidth;
return m_collection_sp->SetPropertyAtIndexAsSInt64 (NULL, idx, term_width);
}
bool
Debugger::GetUseExternalEditor () const
{
const uint32_t idx = ePropertyUseExternalEditor;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
bool
Debugger::SetUseExternalEditor (bool b)
{
const uint32_t idx = ePropertyUseExternalEditor;
return m_collection_sp->SetPropertyAtIndexAsBoolean (NULL, idx, b);
}
bool
Debugger::GetUseColor () const
{
const uint32_t idx = ePropertyUseColor;
return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0);
}
bool
Debugger::SetUseColor (bool b)
{
const uint32_t idx = ePropertyUseColor;
bool ret = m_collection_sp->SetPropertyAtIndexAsBoolean (NULL, idx, b);
SetPrompt (GetPrompt());
return ret;
}
uint32_t
Debugger::GetStopSourceLineCount (bool before) const
{
const uint32_t idx = before ? ePropertyStopLineCountBefore : ePropertyStopLineCountAfter;
return m_collection_sp->GetPropertyAtIndexAsSInt64 (NULL, idx, g_properties[idx].default_uint_value);
}
Debugger::StopDisassemblyType
Debugger::GetStopDisassemblyDisplay () const
{
const uint32_t idx = ePropertyStopDisassemblyDisplay;
return (Debugger::StopDisassemblyType)m_collection_sp->GetPropertyAtIndexAsEnumeration (NULL, idx, g_properties[idx].default_uint_value);
}
uint32_t
Debugger::GetDisassemblyLineCount () const
{
const uint32_t idx = ePropertyStopDisassemblyCount;
return m_collection_sp->GetPropertyAtIndexAsSInt64 (NULL, idx, g_properties[idx].default_uint_value);
}
#pragma mark Debugger
//const DebuggerPropertiesSP &
//Debugger::GetSettings() const
//{
// return m_properties_sp;
//}
//
int
Debugger::TestDebuggerRefCount ()
{
return g_shared_debugger_refcount;
}
void
Debugger::Initialize ()
{
if (g_shared_debugger_refcount++ == 0)
lldb_private::Initialize();
}
void
Debugger::Terminate ()
{
if (g_shared_debugger_refcount > 0)
{
g_shared_debugger_refcount--;
if (g_shared_debugger_refcount == 0)
{
lldb_private::WillTerminate();
lldb_private::Terminate();
// Clear our master list of debugger objects
Mutex::Locker locker (GetDebuggerListMutex ());
GetDebuggerList().clear();
}
}
}
void
Debugger::SettingsInitialize ()
{
Target::SettingsInitialize ();
}
void
Debugger::SettingsTerminate ()
{
Target::SettingsTerminate ();
}
bool
Debugger::LoadPlugin (const FileSpec& spec, Error& error)
{
lldb::DynamicLibrarySP dynlib_sp(new lldb_private::DynamicLibrary(spec));
if (!dynlib_sp || dynlib_sp->IsValid() == false)
{
if (spec.Exists())
error.SetErrorString("this file does not represent a loadable dylib");
else
error.SetErrorString("no such file");
return false;
}
lldb::DebuggerSP debugger_sp(shared_from_this());
lldb::SBDebugger debugger_sb(debugger_sp);
// TODO: mangle this differently for your system - on OSX, the first underscore needs to be removed and the second one stays
LLDBCommandPluginInit init_func = dynlib_sp->GetSymbol<LLDBCommandPluginInit>("_ZN4lldb16PluginInitializeENS_10SBDebuggerE");
if (!init_func)
{
error.SetErrorString("cannot find the initialization function lldb::PluginInitialize(lldb::SBDebugger)");
return false;
}
if (init_func(debugger_sb))
{
m_loaded_plugins.push_back(dynlib_sp);
return true;
}
error.SetErrorString("dylib refused to be loaded");
return false;
}
static FileSpec::EnumerateDirectoryResult
LoadPluginCallback
(
void *baton,
FileSpec::FileType file_type,
const FileSpec &file_spec
)
{
Error error;
static ConstString g_dylibext("dylib");
if (!baton)
return FileSpec::eEnumerateDirectoryResultQuit;
Debugger *debugger = (Debugger*)baton;
// If we have a regular file, a symbolic link or unknown file type, try
// and process the file. We must handle unknown as sometimes the directory
// enumeration might be enumerating a file system that doesn't have correct
// file type information.
if (file_type == FileSpec::eFileTypeRegular ||
file_type == FileSpec::eFileTypeSymbolicLink ||
file_type == FileSpec::eFileTypeUnknown )
{
FileSpec plugin_file_spec (file_spec);
plugin_file_spec.ResolvePath ();
if (plugin_file_spec.GetFileNameExtension() != g_dylibext)
return FileSpec::eEnumerateDirectoryResultNext;
Error plugin_load_error;
debugger->LoadPlugin (plugin_file_spec, plugin_load_error);
return FileSpec::eEnumerateDirectoryResultNext;
}
else if (file_type == FileSpec::eFileTypeUnknown ||
file_type == FileSpec::eFileTypeDirectory ||
file_type == FileSpec::eFileTypeSymbolicLink )
{
// Try and recurse into anything that a directory or symbolic link.
// We must also do this for unknown as sometimes the directory enumeration
// might be enurating a file system that doesn't have correct file type
// information.
return FileSpec::eEnumerateDirectoryResultEnter;
}
return FileSpec::eEnumerateDirectoryResultNext;
}
void
Debugger::InstanceInitialize ()
{
FileSpec dir_spec;
const bool find_directories = true;
const bool find_files = true;
const bool find_other = true;
char dir_path[PATH_MAX];
if (Host::GetLLDBPath (ePathTypeLLDBSystemPlugins, dir_spec))
{
if (dir_spec.Exists() && dir_spec.GetPath(dir_path, sizeof(dir_path)))
{
FileSpec::EnumerateDirectory (dir_path,
find_directories,
find_files,
find_other,
LoadPluginCallback,
this);
}
}
if (Host::GetLLDBPath (ePathTypeLLDBUserPlugins, dir_spec))
{
if (dir_spec.Exists() && dir_spec.GetPath(dir_path, sizeof(dir_path)))
{
FileSpec::EnumerateDirectory (dir_path,
find_directories,
find_files,
find_other,
LoadPluginCallback,
this);
}
}
PluginManager::DebuggerInitialize (*this);
}
DebuggerSP
Debugger::CreateInstance (lldb::LogOutputCallback log_callback, void *baton)
{
DebuggerSP debugger_sp (new Debugger(log_callback, baton));
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
GetDebuggerList().push_back(debugger_sp);
}
debugger_sp->InstanceInitialize ();
return debugger_sp;
}
void
Debugger::Destroy (DebuggerSP &debugger_sp)
{
if (debugger_sp.get() == NULL)
return;
debugger_sp->Clear();
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
DebuggerList &debugger_list = GetDebuggerList ();
DebuggerList::iterator pos, end = debugger_list.end();
for (pos = debugger_list.begin (); pos != end; ++pos)
{
if ((*pos).get() == debugger_sp.get())
{
debugger_list.erase (pos);
return;
}
}
}
}
DebuggerSP
Debugger::FindDebuggerWithInstanceName (const ConstString &instance_name)
{
DebuggerSP debugger_sp;
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
DebuggerList &debugger_list = GetDebuggerList();
DebuggerList::iterator pos, end = debugger_list.end();
for (pos = debugger_list.begin(); pos != end; ++pos)
{
if ((*pos).get()->m_instance_name == instance_name)
{
debugger_sp = *pos;
break;
}
}
}
return debugger_sp;
}
TargetSP
Debugger::FindTargetWithProcessID (lldb::pid_t pid)
{
TargetSP target_sp;
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
DebuggerList &debugger_list = GetDebuggerList();
DebuggerList::iterator pos, end = debugger_list.end();
for (pos = debugger_list.begin(); pos != end; ++pos)
{
target_sp = (*pos)->GetTargetList().FindTargetWithProcessID (pid);
if (target_sp)
break;
}
}
return target_sp;
}
TargetSP
Debugger::FindTargetWithProcess (Process *process)
{
TargetSP target_sp;
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
DebuggerList &debugger_list = GetDebuggerList();
DebuggerList::iterator pos, end = debugger_list.end();
for (pos = debugger_list.begin(); pos != end; ++pos)
{
target_sp = (*pos)->GetTargetList().FindTargetWithProcess (process);
if (target_sp)
break;
}
}
return target_sp;
}
Debugger::Debugger (lldb::LogOutputCallback log_callback, void *baton) :
UserID (g_unique_id++),
Properties(OptionValuePropertiesSP(new OptionValueProperties())),
m_input_comm("debugger.input"),
m_input_file (),
m_output_file (),
m_error_file (),
m_terminal_state (),
m_target_list (*this),
m_platform_list (),
m_listener ("lldb.Debugger"),
m_source_manager_ap(),
m_source_file_cache(),
m_command_interpreter_ap (new CommandInterpreter (*this, eScriptLanguageDefault, false)),
m_input_reader_stack (),
m_input_reader_data (),
m_instance_name()
{
char instance_cstr[256];
snprintf(instance_cstr, sizeof(instance_cstr), "debugger_%d", (int)GetID());
m_instance_name.SetCString(instance_cstr);
if (log_callback)
m_log_callback_stream_sp.reset (new StreamCallback (log_callback, baton));
m_command_interpreter_ap->Initialize ();
// Always add our default platform to the platform list
PlatformSP default_platform_sp (Platform::GetDefaultPlatform());
assert (default_platform_sp.get());
m_platform_list.Append (default_platform_sp, true);
m_collection_sp->Initialize (g_properties);
m_collection_sp->AppendProperty (ConstString("target"),
ConstString("Settings specify to debugging targets."),
true,
Target::GetGlobalProperties()->GetValueProperties());
if (m_command_interpreter_ap.get())
{
m_collection_sp->AppendProperty (ConstString("interpreter"),
ConstString("Settings specify to the debugger's command interpreter."),
true,
m_command_interpreter_ap->GetValueProperties());
}
OptionValueSInt64 *term_width = m_collection_sp->GetPropertyAtIndexAsOptionValueSInt64 (NULL, ePropertyTerminalWidth);
term_width->SetMinimumValue(10);
term_width->SetMaximumValue(1024);
// Turn off use-color if this is a dumb terminal.
const char *term = getenv ("TERM");
if (term && !strcmp (term, "dumb"))
SetUseColor (false);
}
Debugger::~Debugger ()
{
Clear();
}
void
Debugger::Clear()
{
CleanUpInputReaders();
m_listener.Clear();
int num_targets = m_target_list.GetNumTargets();
for (int i = 0; i < num_targets; i++)
{
TargetSP target_sp (m_target_list.GetTargetAtIndex (i));
if (target_sp)
{
ProcessSP process_sp (target_sp->GetProcessSP());
if (process_sp)
process_sp->Finalize();
target_sp->Destroy();
}
}
BroadcasterManager::Clear ();
// Close the input file _before_ we close the input read communications class
// as it does NOT own the input file, our m_input_file does.
m_terminal_state.Clear();
GetInputFile().Close ();
// Now that we have closed m_input_file, we can now tell our input communication
// class to close down. Its read thread should quickly exit after we close
// the input file handle above.
m_input_comm.Clear ();
}
bool
Debugger::GetCloseInputOnEOF () const
{
return m_input_comm.GetCloseOnEOF();
}
void
Debugger::SetCloseInputOnEOF (bool b)
{
m_input_comm.SetCloseOnEOF(b);
}
bool
Debugger::GetAsyncExecution ()
{
return !m_command_interpreter_ap->GetSynchronous();
}
void
Debugger::SetAsyncExecution (bool async_execution)
{
m_command_interpreter_ap->SetSynchronous (!async_execution);
}
void
Debugger::SetInputFileHandle (FILE *fh, bool tranfer_ownership)
{
File &in_file = GetInputFile();
in_file.SetStream (fh, tranfer_ownership);
if (in_file.IsValid() == false)
in_file.SetStream (stdin, true);
// Disconnect from any old connection if we had one
m_input_comm.Disconnect ();
// Pass false as the second argument to ConnectionFileDescriptor below because
// our "in_file" above will already take ownership if requested and we don't
// want to objects trying to own and close a file descriptor.
m_input_comm.SetConnection (new ConnectionFileDescriptor (in_file.GetDescriptor(), false));
m_input_comm.SetReadThreadBytesReceivedCallback (Debugger::DispatchInputCallback, this);
// Save away the terminal state if that is relevant, so that we can restore it in RestoreInputState.
SaveInputTerminalState ();
Error error;
if (m_input_comm.StartReadThread (&error) == false)
{
File &err_file = GetErrorFile();
err_file.Printf ("error: failed to main input read thread: %s", error.AsCString() ? error.AsCString() : "unkown error");
exit(1);
}
}
void
Debugger::SetOutputFileHandle (FILE *fh, bool tranfer_ownership)
{
File &out_file = GetOutputFile();
out_file.SetStream (fh, tranfer_ownership);
if (out_file.IsValid() == false)
out_file.SetStream (stdout, false);
// do not create the ScriptInterpreter just for setting the output file handle
// as the constructor will know how to do the right thing on its own
const bool can_create = false;
ScriptInterpreter* script_interpreter = GetCommandInterpreter().GetScriptInterpreter(can_create);
if (script_interpreter)
script_interpreter->ResetOutputFileHandle (fh);
}
void
Debugger::SetErrorFileHandle (FILE *fh, bool tranfer_ownership)
{
File &err_file = GetErrorFile();
err_file.SetStream (fh, tranfer_ownership);
if (err_file.IsValid() == false)
err_file.SetStream (stderr, false);
}
void
Debugger::SaveInputTerminalState ()
{
File &in_file = GetInputFile();
if (in_file.GetDescriptor() != File::kInvalidDescriptor)
m_terminal_state.Save(in_file.GetDescriptor(), true);
}
void
Debugger::RestoreInputTerminalState ()
{
m_terminal_state.Restore();
}
ExecutionContext
Debugger::GetSelectedExecutionContext ()
{
ExecutionContext exe_ctx;
TargetSP target_sp(GetSelectedTarget());
exe_ctx.SetTargetSP (target_sp);
if (target_sp)
{
ProcessSP process_sp (target_sp->GetProcessSP());
exe_ctx.SetProcessSP (process_sp);
if (process_sp && process_sp->IsRunning() == false)
{
ThreadSP thread_sp (process_sp->GetThreadList().GetSelectedThread());
if (thread_sp)
{
exe_ctx.SetThreadSP (thread_sp);
exe_ctx.SetFrameSP (thread_sp->GetSelectedFrame());
if (exe_ctx.GetFramePtr() == NULL)
exe_ctx.SetFrameSP (thread_sp->GetStackFrameAtIndex (0));
}
}
}
return exe_ctx;
}
InputReaderSP
Debugger::GetCurrentInputReader ()
{
InputReaderSP reader_sp;
if (!m_input_reader_stack.IsEmpty())
{
// Clear any finished readers from the stack
while (CheckIfTopInputReaderIsDone()) ;
if (!m_input_reader_stack.IsEmpty())
reader_sp = m_input_reader_stack.Top();
}
return reader_sp;
}
void
Debugger::DispatchInputCallback (void *baton, const void *bytes, size_t bytes_len)
{
if (bytes_len > 0)
((Debugger *)baton)->DispatchInput ((char *)bytes, bytes_len);
else
((Debugger *)baton)->DispatchInputEndOfFile ();
}
void
Debugger::DispatchInput (const char *bytes, size_t bytes_len)
{
if (bytes == NULL || bytes_len == 0)
return;
WriteToDefaultReader (bytes, bytes_len);
}
void
Debugger::DispatchInputInterrupt ()
{
m_input_reader_data.clear();
InputReaderSP reader_sp (GetCurrentInputReader ());
if (reader_sp)
{
reader_sp->Notify (eInputReaderInterrupt);
// If notifying the reader of the interrupt finished the reader, we should pop it off the stack.
while (CheckIfTopInputReaderIsDone ()) ;
}
}
void
Debugger::DispatchInputEndOfFile ()
{
m_input_reader_data.clear();
InputReaderSP reader_sp (GetCurrentInputReader ());
if (reader_sp)
{
reader_sp->Notify (eInputReaderEndOfFile);
// If notifying the reader of the end-of-file finished the reader, we should pop it off the stack.
while (CheckIfTopInputReaderIsDone ()) ;
}
}
void
Debugger::CleanUpInputReaders ()
{
m_input_reader_data.clear();
// The bottom input reader should be the main debugger input reader. We do not want to close that one here.
while (m_input_reader_stack.GetSize() > 1)
{
InputReaderSP reader_sp (GetCurrentInputReader ());
if (reader_sp)
{
reader_sp->Notify (eInputReaderEndOfFile);
reader_sp->SetIsDone (true);
}
}
}
void
Debugger::NotifyTopInputReader (InputReaderAction notification)
{
InputReaderSP reader_sp (GetCurrentInputReader());
if (reader_sp)
{
reader_sp->Notify (notification);
// Flush out any input readers that are done.
while (CheckIfTopInputReaderIsDone ())
/* Do nothing. */;
}
}
bool
Debugger::InputReaderIsTopReader (const InputReaderSP& reader_sp)
{
InputReaderSP top_reader_sp (GetCurrentInputReader());
return (reader_sp.get() == top_reader_sp.get());
}
void
Debugger::WriteToDefaultReader (const char *bytes, size_t bytes_len)
{
if (bytes && bytes_len)
m_input_reader_data.append (bytes, bytes_len);
if (m_input_reader_data.empty())
return;
while (!m_input_reader_stack.IsEmpty() && !m_input_reader_data.empty())
{
// Get the input reader from the top of the stack
InputReaderSP reader_sp (GetCurrentInputReader ());
if (!reader_sp)
break;
size_t bytes_handled = reader_sp->HandleRawBytes (m_input_reader_data.c_str(),
m_input_reader_data.size());
if (bytes_handled)
{
m_input_reader_data.erase (0, bytes_handled);
}
else
{
// No bytes were handled, we might not have reached our
// granularity, just return and wait for more data
break;
}
}
// Flush out any input readers that are done.
while (CheckIfTopInputReaderIsDone ())
/* Do nothing. */;
}
void
Debugger::PushInputReader (const InputReaderSP& reader_sp)
{
if (!reader_sp)
return;
// Deactivate the old top reader
InputReaderSP top_reader_sp (GetCurrentInputReader ());
if (top_reader_sp)
top_reader_sp->Notify (eInputReaderDeactivate);
m_input_reader_stack.Push (reader_sp);
reader_sp->Notify (eInputReaderActivate);
ActivateInputReader (reader_sp);
}
bool
Debugger::PopInputReader (const InputReaderSP& pop_reader_sp)
{
bool result = false;
// The reader on the stop of the stack is done, so let the next
// read on the stack referesh its prompt and if there is one...
if (!m_input_reader_stack.IsEmpty())
{
// Cannot call GetCurrentInputReader here, as that would cause an infinite loop.
InputReaderSP reader_sp(m_input_reader_stack.Top());
if (!pop_reader_sp || pop_reader_sp.get() == reader_sp.get())
{
m_input_reader_stack.Pop ();
reader_sp->Notify (eInputReaderDeactivate);
reader_sp->Notify (eInputReaderDone);
result = true;
if (!m_input_reader_stack.IsEmpty())
{
reader_sp = m_input_reader_stack.Top();
if (reader_sp)
{
ActivateInputReader (reader_sp);
reader_sp->Notify (eInputReaderReactivate);
}
}
}
}
return result;
}
bool
Debugger::CheckIfTopInputReaderIsDone ()
{
bool result = false;
if (!m_input_reader_stack.IsEmpty())
{
// Cannot call GetCurrentInputReader here, as that would cause an infinite loop.
InputReaderSP reader_sp(m_input_reader_stack.Top());
if (reader_sp && reader_sp->IsDone())
{
result = true;
PopInputReader (reader_sp);
}
}
return result;
}
void
Debugger::ActivateInputReader (const InputReaderSP &reader_sp)
{
int input_fd = m_input_file.GetFile().GetDescriptor();
if (input_fd >= 0)
{
Terminal tty(input_fd);
tty.SetEcho(reader_sp->GetEcho());
switch (reader_sp->GetGranularity())
{
case eInputReaderGranularityByte:
case eInputReaderGranularityWord:
tty.SetCanonical (false);
break;
case eInputReaderGranularityLine:
case eInputReaderGranularityAll:
tty.SetCanonical (true);
break;
default:
break;
}
}
}
StreamSP
Debugger::GetAsyncOutputStream ()
{
return StreamSP (new StreamAsynchronousIO (GetCommandInterpreter(),
CommandInterpreter::eBroadcastBitAsynchronousOutputData));
}
StreamSP
Debugger::GetAsyncErrorStream ()
{
return StreamSP (new StreamAsynchronousIO (GetCommandInterpreter(),
CommandInterpreter::eBroadcastBitAsynchronousErrorData));
}
size_t
Debugger::GetNumDebuggers()
{
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
return GetDebuggerList().size();
}
return 0;
}
lldb::DebuggerSP
Debugger::GetDebuggerAtIndex (size_t index)
{
DebuggerSP debugger_sp;
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
DebuggerList &debugger_list = GetDebuggerList();
if (index < debugger_list.size())
debugger_sp = debugger_list[index];
}
return debugger_sp;
}
DebuggerSP
Debugger::FindDebuggerWithID (lldb::user_id_t id)
{
DebuggerSP debugger_sp;
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
DebuggerList &debugger_list = GetDebuggerList();
DebuggerList::iterator pos, end = debugger_list.end();
for (pos = debugger_list.begin(); pos != end; ++pos)
{
if ((*pos).get()->GetID() == id)
{
debugger_sp = *pos;
break;
}
}
}
return debugger_sp;
}
static void
TestPromptFormats (StackFrame *frame)
{
if (frame == NULL)
return;
StreamString s;
const char *prompt_format =
"{addr = '${addr}'\n}"
"{process.id = '${process.id}'\n}"
"{process.name = '${process.name}'\n}"
"{process.file.basename = '${process.file.basename}'\n}"
"{process.file.fullpath = '${process.file.fullpath}'\n}"
"{thread.id = '${thread.id}'\n}"
"{thread.index = '${thread.index}'\n}"
"{thread.name = '${thread.name}'\n}"
"{thread.queue = '${thread.queue}'\n}"
"{thread.stop-reason = '${thread.stop-reason}'\n}"
"{target.arch = '${target.arch}'\n}"
"{module.file.basename = '${module.file.basename}'\n}"
"{module.file.fullpath = '${module.file.fullpath}'\n}"
"{file.basename = '${file.basename}'\n}"
"{file.fullpath = '${file.fullpath}'\n}"
"{frame.index = '${frame.index}'\n}"
"{frame.pc = '${frame.pc}'\n}"
"{frame.sp = '${frame.sp}'\n}"
"{frame.fp = '${frame.fp}'\n}"
"{frame.flags = '${frame.flags}'\n}"
"{frame.reg.rdi = '${frame.reg.rdi}'\n}"
"{frame.reg.rip = '${frame.reg.rip}'\n}"
"{frame.reg.rsp = '${frame.reg.rsp}'\n}"
"{frame.reg.rbp = '${frame.reg.rbp}'\n}"
"{frame.reg.rflags = '${frame.reg.rflags}'\n}"
"{frame.reg.xmm0 = '${frame.reg.xmm0}'\n}"
"{frame.reg.carp = '${frame.reg.carp}'\n}"
"{function.id = '${function.id}'\n}"
"{function.name = '${function.name}'\n}"
"{function.name-with-args = '${function.name-with-args}'\n}"
"{function.addr-offset = '${function.addr-offset}'\n}"
"{function.line-offset = '${function.line-offset}'\n}"
"{function.pc-offset = '${function.pc-offset}'\n}"
"{line.file.basename = '${line.file.basename}'\n}"
"{line.file.fullpath = '${line.file.fullpath}'\n}"
"{line.number = '${line.number}'\n}"
"{line.start-addr = '${line.start-addr}'\n}"
"{line.end-addr = '${line.end-addr}'\n}"
;
SymbolContext sc (frame->GetSymbolContext(eSymbolContextEverything));
ExecutionContext exe_ctx;
frame->CalculateExecutionContext(exe_ctx);
if (Debugger::FormatPrompt (prompt_format, &sc, &exe_ctx, &sc.line_entry.range.GetBaseAddress(), s))
{
printf("%s\n", s.GetData());
}
else
{
printf ("what we got: %s\n", s.GetData());
}
}
static bool
ScanFormatDescriptor (const char* var_name_begin,
const char* var_name_end,
const char** var_name_final,
const char** percent_position,
Format* custom_format,
ValueObject::ValueObjectRepresentationStyle* val_obj_display)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
*percent_position = ::strchr(var_name_begin,'%');
if (!*percent_position || *percent_position > var_name_end)
{
if (log)
log->Printf("[ScanFormatDescriptor] no format descriptor in string, skipping");
*var_name_final = var_name_end;
}
else
{
*var_name_final = *percent_position;
std::string format_name(*var_name_final+1, var_name_end-*var_name_final-1);
if (log)
log->Printf("[ScanFormatDescriptor] parsing %s as a format descriptor", format_name.c_str());
if ( !FormatManager::GetFormatFromCString(format_name.c_str(),
true,
*custom_format) )
{
if (log)
log->Printf("[ScanFormatDescriptor] %s is an unknown format", format_name.c_str());
switch (format_name.front())
{
case '@': // if this is an @ sign, print ObjC description
*val_obj_display = ValueObject::eValueObjectRepresentationStyleLanguageSpecific;
break;
case 'V': // if this is a V, print the value using the default format
*val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
break;
case 'L': // if this is an L, print the location of the value
*val_obj_display = ValueObject::eValueObjectRepresentationStyleLocation;
break;
case 'S': // if this is an S, print the summary after all
*val_obj_display = ValueObject::eValueObjectRepresentationStyleSummary;
break;
case '#': // if this is a '#', print the number of children
*val_obj_display = ValueObject::eValueObjectRepresentationStyleChildrenCount;
break;
case 'T': // if this is a 'T', print the type
*val_obj_display = ValueObject::eValueObjectRepresentationStyleType;
break;
default:
if (log)
log->Printf("ScanFormatDescriptor] %s is an error, leaving the previous value alone", format_name.c_str());
break;
}
}
// a good custom format tells us to print the value using it
else
{
if (log)
log->Printf("[ScanFormatDescriptor] will display value for this VO");
*val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
}
}
if (log)
log->Printf("[ScanFormatDescriptor] final format description outcome: custom_format = %d, val_obj_display = %d",
*custom_format,
*val_obj_display);
return true;
}
static bool
ScanBracketedRange (const char* var_name_begin,
const char* var_name_end,
const char* var_name_final,
const char** open_bracket_position,
const char** separator_position,
const char** close_bracket_position,
const char** var_name_final_if_array_range,
int64_t* index_lower,
int64_t* index_higher)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
*open_bracket_position = ::strchr(var_name_begin,'[');
if (*open_bracket_position && *open_bracket_position < var_name_final)
{
*separator_position = ::strchr(*open_bracket_position,'-'); // might be NULL if this is a simple var[N] bitfield
*close_bracket_position = ::strchr(*open_bracket_position,']');
// as usual, we assume that [] will come before %
//printf("trying to expand a []\n");
*var_name_final_if_array_range = *open_bracket_position;
if (*close_bracket_position - *open_bracket_position == 1)
{
if (log)
log->Printf("[ScanBracketedRange] '[]' detected.. going from 0 to end of data");
*index_lower = 0;
}
else if (*separator_position == NULL || *separator_position > var_name_end)
{
char *end = NULL;
*index_lower = ::strtoul (*open_bracket_position+1, &end, 0);
*index_higher = *index_lower;
if (log)
log->Printf("[ScanBracketedRange] [%" PRId64 "] detected, high index is same", *index_lower);
}
else if (*close_bracket_position && *close_bracket_position < var_name_end)
{
char *end = NULL;
*index_lower = ::strtoul (*open_bracket_position+1, &end, 0);
*index_higher = ::strtoul (*separator_position+1, &end, 0);
if (log)
log->Printf("[ScanBracketedRange] [%" PRId64 "-%" PRId64 "] detected", *index_lower, *index_higher);
}
else
{
if (log)
log->Printf("[ScanBracketedRange] expression is erroneous, cannot extract indices out of it");
return false;
}
if (*index_lower > *index_higher && *index_higher > 0)
{
if (log)
log->Printf("[ScanBracketedRange] swapping indices");
int64_t temp = *index_lower;
*index_lower = *index_higher;
*index_higher = temp;
}
}
else if (log)
log->Printf("[ScanBracketedRange] no bracketed range, skipping entirely");
return true;
}
static ValueObjectSP
ExpandIndexedExpression (ValueObject* valobj,
size_t index,
StackFrame* frame,
bool deref_pointer)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
const char* ptr_deref_format = "[%d]";
std::string ptr_deref_buffer(10,0);
::sprintf(&ptr_deref_buffer[0], ptr_deref_format, index);
if (log)
log->Printf("[ExpandIndexedExpression] name to deref: %s",ptr_deref_buffer.c_str());
const char* first_unparsed;
ValueObject::GetValueForExpressionPathOptions options;
ValueObject::ExpressionPathEndResultType final_value_type;
ValueObject::ExpressionPathScanEndReason reason_to_stop;
ValueObject::ExpressionPathAftermath what_next = (deref_pointer ? ValueObject::eExpressionPathAftermathDereference : ValueObject::eExpressionPathAftermathNothing);
ValueObjectSP item = valobj->GetValueForExpressionPath (ptr_deref_buffer.c_str(),
&first_unparsed,
&reason_to_stop,
&final_value_type,
options,
&what_next);
if (!item)
{
if (log)
log->Printf("[ExpandIndexedExpression] ERROR: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
}
else
{
if (log)
log->Printf("[ExpandIndexedExpression] ALL RIGHT: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
}
return item;
}
static bool
FormatPromptRecurse
(
const char *format,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const Address *addr,
Stream &s,
const char **end,
ValueObject* valobj
)
{
ValueObject* realvalobj = NULL; // makes it super-easy to parse pointers
bool success = true;
const char *p;
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
for (p = format; *p != '\0'; ++p)
{
if (realvalobj)
{
valobj = realvalobj;
realvalobj = NULL;
}
size_t non_special_chars = ::strcspn (p, "${}\\");
if (non_special_chars > 0)
{
if (success)
s.Write (p, non_special_chars);
p += non_special_chars;
}
if (*p == '\0')
{
break;
}
else if (*p == '{')
{
// Start a new scope that must have everything it needs if it is to
// to make it into the final output stream "s". If you want to make
// a format that only prints out the function or symbol name if there
// is one in the symbol context you can use:
// "{function =${function.name}}"
// The first '{' starts a new scope that end with the matching '}' at
// the end of the string. The contents "function =${function.name}"
// will then be evaluated and only be output if there is a function
// or symbol with a valid name.
StreamString sub_strm;
++p; // Skip the '{'
if (FormatPromptRecurse (p, sc, exe_ctx, addr, sub_strm, &p, valobj))
{
// The stream had all it needed
s.Write(sub_strm.GetData(), sub_strm.GetSize());
}
if (*p != '}')
{
success = false;
break;
}
}
else if (*p == '}')
{
// End of a enclosing scope
break;
}
else if (*p == '$')
{
// We have a prompt variable to print
++p;
if (*p == '{')
{
++p;
const char *var_name_begin = p;
const char *var_name_end = ::strchr (p, '}');
if (var_name_end && var_name_begin < var_name_end)
{
// if we have already failed to parse, skip this variable
if (success)
{
const char *cstr = NULL;
Address format_addr;
bool calculate_format_addr_function_offset = false;
// Set reg_kind and reg_num to invalid values
RegisterKind reg_kind = kNumRegisterKinds;
uint32_t reg_num = LLDB_INVALID_REGNUM;
FileSpec format_file_spec;
const RegisterInfo *reg_info = NULL;
RegisterContext *reg_ctx = NULL;
bool do_deref_pointer = false;
ValueObject::ExpressionPathScanEndReason reason_to_stop = ValueObject::eExpressionPathScanEndReasonEndOfString;
ValueObject::ExpressionPathEndResultType final_value_type = ValueObject::eExpressionPathEndResultTypePlain;
// Each variable must set success to true below...
bool var_success = false;
switch (var_name_begin[0])
{
case '*':
case 'v':
case 's':
{
if (!valobj)
break;
if (log)
log->Printf("[Debugger::FormatPrompt] initial string: %s",var_name_begin);
// check for *var and *svar
if (*var_name_begin == '*')
{
do_deref_pointer = true;
var_name_begin++;
if (log)
log->Printf("[Debugger::FormatPrompt] found a deref, new string is: %s",var_name_begin);
}
if (*var_name_begin == 's')
{
if (!valobj->IsSynthetic())
valobj = valobj->GetSyntheticValue().get();
if (!valobj)
break;
var_name_begin++;
if (log)
log->Printf("[Debugger::FormatPrompt] found a synthetic, new string is: %s",var_name_begin);
}
// should be a 'v' by now
if (*var_name_begin != 'v')
break;
if (log)
log->Printf("[Debugger::FormatPrompt] string I am working with: %s",var_name_begin);
ValueObject::ExpressionPathAftermath what_next = (do_deref_pointer ?
ValueObject::eExpressionPathAftermathDereference : ValueObject::eExpressionPathAftermathNothing);
ValueObject::GetValueForExpressionPathOptions options;
options.DontCheckDotVsArrowSyntax().DoAllowBitfieldSyntax().DoAllowFragileIVar().DoAllowSyntheticChildren();
ValueObject::ValueObjectRepresentationStyle val_obj_display = ValueObject::eValueObjectRepresentationStyleSummary;
ValueObject* target = NULL;
Format custom_format = eFormatInvalid;
const char* var_name_final = NULL;
const char* var_name_final_if_array_range = NULL;
const char* close_bracket_position = NULL;
int64_t index_lower = -1;
int64_t index_higher = -1;
bool is_array_range = false;
const char* first_unparsed;
bool was_plain_var = false;
bool was_var_format = false;
bool was_var_indexed = false;
if (!valobj) break;
// simplest case ${var}, just print valobj's value
if (::strncmp (var_name_begin, "var}", strlen("var}")) == 0)
{
was_plain_var = true;
target = valobj;
val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
}
else if (::strncmp(var_name_begin,"var%",strlen("var%")) == 0)
{
was_var_format = true;
// this is a variable with some custom format applied to it
const char* percent_position;
target = valobj;
val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
ScanFormatDescriptor (var_name_begin,
var_name_end,
&var_name_final,
&percent_position,
&custom_format,
&val_obj_display);
}
// this is ${var.something} or multiple .something nested
else if (::strncmp (var_name_begin, "var", strlen("var")) == 0)
{
if (::strncmp(var_name_begin, "var[", strlen("var[")) == 0)
was_var_indexed = true;
const char* percent_position;
ScanFormatDescriptor (var_name_begin,
var_name_end,
&var_name_final,
&percent_position,
&custom_format,
&val_obj_display);
const char* open_bracket_position;
const char* separator_position;
ScanBracketedRange (var_name_begin,
var_name_end,
var_name_final,
&open_bracket_position,
&separator_position,
&close_bracket_position,
&var_name_final_if_array_range,
&index_lower,
&index_higher);
Error error;
std::string expr_path(var_name_final-var_name_begin-1,0);
memcpy(&expr_path[0], var_name_begin+3,var_name_final-var_name_begin-3);
if (log)
log->Printf("[Debugger::FormatPrompt] symbol to expand: %s",expr_path.c_str());
target = valobj->GetValueForExpressionPath(expr_path.c_str(),
&first_unparsed,
&reason_to_stop,
&final_value_type,
options,
&what_next).get();
if (!target)
{
if (log)
log->Printf("[Debugger::FormatPrompt] ERROR: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
break;
}
else
{
if (log)
log->Printf("[Debugger::FormatPrompt] ALL RIGHT: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
}
}
else
break;
is_array_range = (final_value_type == ValueObject::eExpressionPathEndResultTypeBoundedRange ||
final_value_type == ValueObject::eExpressionPathEndResultTypeUnboundedRange);
do_deref_pointer = (what_next == ValueObject::eExpressionPathAftermathDereference);
if (do_deref_pointer && !is_array_range)
{
// I have not deref-ed yet, let's do it
// this happens when we are not going through GetValueForVariableExpressionPath
// to get to the target ValueObject
Error error;
target = target->Dereference(error).get();
if (error.Fail())
{
if (log)
log->Printf("[Debugger::FormatPrompt] ERROR: %s\n", error.AsCString("unknown")); \
break;
}
do_deref_pointer = false;
}
// <rdar://problem/11338654>
// we do not want to use the summary for a bitfield of type T:n
// if we were originally dealing with just a T - that would get
// us into an endless recursion
if (target->IsBitfield() && was_var_indexed)
{
// TODO: check for a (T:n)-specific summary - we should still obey that
StreamString bitfield_name;
bitfield_name.Printf("%s:%d", target->GetTypeName().AsCString(), target->GetBitfieldBitSize());
lldb::TypeNameSpecifierImplSP type_sp(new TypeNameSpecifierImpl(bitfield_name.GetData(),false));
if (!DataVisualization::GetSummaryForType(type_sp))
val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
}
// TODO use flags for these
bool is_array = ClangASTContext::IsArrayType(target->GetClangType(), NULL, NULL, NULL);
bool is_pointer = ClangASTContext::IsPointerType(target->GetClangType());
bool is_aggregate = ClangASTContext::IsAggregateType(target->GetClangType());
if ((is_array || is_pointer) && (!is_array_range) && val_obj_display == ValueObject::eValueObjectRepresentationStyleValue) // this should be wrong, but there are some exceptions
{
StreamString str_temp;
if (log)
log->Printf("[Debugger::FormatPrompt] I am into array || pointer && !range");
if (target->HasSpecialPrintableRepresentation(val_obj_display, custom_format))
{
// try to use the special cases
var_success = target->DumpPrintableRepresentation(str_temp,
val_obj_display,
custom_format);
if (log)
log->Printf("[Debugger::FormatPrompt] special cases did%s match", var_success ? "" : "n't");
// should not happen
if (var_success)
s << str_temp.GetData();
var_success = true;
break;
}
else
{
if (was_plain_var) // if ${var}
{
s << target->GetTypeName() << " @ " << target->GetLocationAsCString();
}
else if (is_pointer) // if pointer, value is the address stored
{
target->DumpPrintableRepresentation (s,
val_obj_display,
custom_format,
ValueObject::ePrintableRepresentationSpecialCasesDisable);
}
var_success = true;
break;
}
}
// if directly trying to print ${var}, and this is an aggregate, display a nice
// type @ location message
if (is_aggregate && was_plain_var)
{
s << target->GetTypeName() << " @ " << target->GetLocationAsCString();
var_success = true;
break;
}
// if directly trying to print ${var%V}, and this is an aggregate, do not let the user do it
if (is_aggregate && ((was_var_format && val_obj_display == ValueObject::eValueObjectRepresentationStyleValue)))
{
s << "<invalid use of aggregate type>";
var_success = true;
break;
}
if (!is_array_range)
{
if (log)
log->Printf("[Debugger::FormatPrompt] dumping ordinary printable output");
var_success = target->DumpPrintableRepresentation(s,val_obj_display, custom_format);
}
else
{
if (log)
log->Printf("[Debugger::FormatPrompt] checking if I can handle as array");
if (!is_array && !is_pointer)
break;
if (log)
log->Printf("[Debugger::FormatPrompt] handle as array");
const char* special_directions = NULL;
StreamString special_directions_writer;
if (close_bracket_position && (var_name_end-close_bracket_position > 1))
{
ConstString additional_data;
additional_data.SetCStringWithLength(close_bracket_position+1, var_name_end-close_bracket_position-1);
special_directions_writer.Printf("${%svar%s}",
do_deref_pointer ? "*" : "",
additional_data.GetCString());
special_directions = special_directions_writer.GetData();
}
// let us display items index_lower thru index_higher of this array
s.PutChar('[');
var_success = true;
if (index_higher < 0)
index_higher = valobj->GetNumChildren() - 1;
uint32_t max_num_children = target->GetTargetSP()->GetMaximumNumberOfChildrenToDisplay();
for (;index_lower<=index_higher;index_lower++)
{
ValueObject* item = ExpandIndexedExpression (target,
index_lower,
exe_ctx->GetFramePtr(),
false).get();
if (!item)
{
if (log)
log->Printf("[Debugger::FormatPrompt] ERROR in getting child item at index %" PRId64, index_lower);
}
else
{
if (log)
log->Printf("[Debugger::FormatPrompt] special_directions for child item: %s",special_directions);
}
if (!special_directions)
var_success &= item->DumpPrintableRepresentation(s,val_obj_display, custom_format);
else
var_success &= FormatPromptRecurse(special_directions, sc, exe_ctx, addr, s, NULL, item);
if (--max_num_children == 0)
{
s.PutCString(", ...");
break;
}
if (index_lower < index_higher)
s.PutChar(',');
}
s.PutChar(']');
}
}
break;
case 'a':
if (::strncmp (var_name_begin, "addr}", strlen("addr}")) == 0)
{
if (addr && addr->IsValid())
{
var_success = true;
format_addr = *addr;
}
}
break;
case 'p':
if (::strncmp (var_name_begin, "process.", strlen("process.")) == 0)
{
if (exe_ctx)
{
Process *process = exe_ctx->GetProcessPtr();
if (process)
{
var_name_begin += ::strlen ("process.");
if (::strncmp (var_name_begin, "id}", strlen("id}")) == 0)
{
s.Printf("%" PRIu64, process->GetID());
var_success = true;
}
else if ((::strncmp (var_name_begin, "name}", strlen("name}")) == 0) ||
(::strncmp (var_name_begin, "file.basename}", strlen("file.basename}")) == 0) ||
(::strncmp (var_name_begin, "file.fullpath}", strlen("file.fullpath}")) == 0))
{
Module *exe_module = process->GetTarget().GetExecutableModulePointer();
if (exe_module)
{
if (var_name_begin[0] == 'n' || var_name_begin[5] == 'f')
{
format_file_spec.GetFilename() = exe_module->GetFileSpec().GetFilename();
var_success = format_file_spec;
}
else
{
format_file_spec = exe_module->GetFileSpec();
var_success = format_file_spec;
}
}
}
}
}
}
break;
case 't':
if (::strncmp (var_name_begin, "thread.", strlen("thread.")) == 0)
{
if (exe_ctx)
{
Thread *thread = exe_ctx->GetThreadPtr();
if (thread)
{
var_name_begin += ::strlen ("thread.");
if (::strncmp (var_name_begin, "id}", strlen("id}")) == 0)
{
s.Printf("0x%4.4" PRIx64, thread->GetID());
var_success = true;
}
else if (::strncmp (var_name_begin, "protocol_id}", strlen("protocol_id}")) == 0)
{
s.Printf("0x%4.4" PRIx64, thread->GetProtocolID());
var_success = true;
}
else if (::strncmp (var_name_begin, "index}", strlen("index}")) == 0)
{
s.Printf("%u", thread->GetIndexID());
var_success = true;
}
else if (::strncmp (var_name_begin, "name}", strlen("name}")) == 0)
{
cstr = thread->GetName();
var_success = cstr && cstr[0];
if (var_success)
s.PutCString(cstr);
}
else if (::strncmp (var_name_begin, "queue}", strlen("queue}")) == 0)
{
cstr = thread->GetQueueName();
var_success = cstr && cstr[0];
if (var_success)
s.PutCString(cstr);
}
else if (::strncmp (var_name_begin, "stop-reason}", strlen("stop-reason}")) == 0)
{
StopInfoSP stop_info_sp = thread->GetStopInfo ();
if (stop_info_sp && stop_info_sp->IsValid())
{
cstr = stop_info_sp->GetDescription();
if (cstr && cstr[0])
{
s.PutCString(cstr);
var_success = true;
}
}
}
else if (::strncmp (var_name_begin, "return-value}", strlen("return-value}")) == 0)
{
StopInfoSP stop_info_sp = thread->GetStopInfo ();
if (stop_info_sp && stop_info_sp->IsValid())
{
ValueObjectSP return_valobj_sp = StopInfo::GetReturnValueObject (stop_info_sp);
if (return_valobj_sp)
{
ValueObject::DumpValueObject (s, return_valobj_sp.get());
var_success = true;
}
}
}
}
}
}
else if (::strncmp (var_name_begin, "target.", strlen("target.")) == 0)
{
// TODO: hookup properties
// if (!target_properties_sp)
// {
// Target *target = Target::GetTargetFromContexts (exe_ctx, sc);
// if (target)
// target_properties_sp = target->GetProperties();
// }
//
// if (target_properties_sp)
// {
// var_name_begin += ::strlen ("target.");
// const char *end_property = strchr(var_name_begin, '}');
// if (end_property)
// {
// ConstString property_name(var_name_begin, end_property - var_name_begin);
// std::string property_value (target_properties_sp->GetPropertyValue(property_name));
// if (!property_value.empty())
// {
// s.PutCString (property_value.c_str());
// var_success = true;
// }
// }
// }
Target *target = Target::GetTargetFromContexts (exe_ctx, sc);
if (target)
{
var_name_begin += ::strlen ("target.");
if (::strncmp (var_name_begin, "arch}", strlen("arch}")) == 0)
{
ArchSpec arch (target->GetArchitecture ());
if (arch.IsValid())
{
s.PutCString (arch.GetArchitectureName());
var_success = true;
}
}
}
}
break;
case 'm':
if (::strncmp (var_name_begin, "module.", strlen("module.")) == 0)
{
if (sc && sc->module_sp.get())
{
Module *module = sc->module_sp.get();
var_name_begin += ::strlen ("module.");
if (::strncmp (var_name_begin, "file.", strlen("file.")) == 0)
{
if (module->GetFileSpec())
{
var_name_begin += ::strlen ("file.");
if (::strncmp (var_name_begin, "basename}", strlen("basename}")) == 0)
{
format_file_spec.GetFilename() = module->GetFileSpec().GetFilename();
var_success = format_file_spec;
}
else if (::strncmp (var_name_begin, "fullpath}", strlen("fullpath}")) == 0)
{
format_file_spec = module->GetFileSpec();
var_success = format_file_spec;
}
}
}
}
}
break;
case 'f':
if (::strncmp (var_name_begin, "file.", strlen("file.")) == 0)
{
if (sc && sc->comp_unit != NULL)
{
var_name_begin += ::strlen ("file.");
if (::strncmp (var_name_begin, "basename}", strlen("basename}")) == 0)
{
format_file_spec.GetFilename() = sc->comp_unit->GetFilename();
var_success = format_file_spec;
}
else if (::strncmp (var_name_begin, "fullpath}", strlen("fullpath}")) == 0)
{
format_file_spec = *sc->comp_unit;
var_success = format_file_spec;
}
}
}
else if (::strncmp (var_name_begin, "frame.", strlen("frame.")) == 0)
{
if (exe_ctx)
{
StackFrame *frame = exe_ctx->GetFramePtr();
if (frame)
{
var_name_begin += ::strlen ("frame.");
if (::strncmp (var_name_begin, "index}", strlen("index}")) == 0)
{
s.Printf("%u", frame->GetFrameIndex());
var_success = true;
}
else if (::strncmp (var_name_begin, "pc}", strlen("pc}")) == 0)
{
reg_kind = eRegisterKindGeneric;
reg_num = LLDB_REGNUM_GENERIC_PC;
var_success = true;
}
else if (::strncmp (var_name_begin, "sp}", strlen("sp}")) == 0)
{
reg_kind = eRegisterKindGeneric;
reg_num = LLDB_REGNUM_GENERIC_SP;
var_success = true;
}
else if (::strncmp (var_name_begin, "fp}", strlen("fp}")) == 0)
{
reg_kind = eRegisterKindGeneric;
reg_num = LLDB_REGNUM_GENERIC_FP;
var_success = true;
}
else if (::strncmp (var_name_begin, "flags}", strlen("flags}")) == 0)
{
reg_kind = eRegisterKindGeneric;
reg_num = LLDB_REGNUM_GENERIC_FLAGS;
var_success = true;
}
else if (::strncmp (var_name_begin, "reg.", strlen ("reg.")) == 0)
{
reg_ctx = frame->GetRegisterContext().get();
if (reg_ctx)
{
var_name_begin += ::strlen ("reg.");
if (var_name_begin < var_name_end)
{
std::string reg_name (var_name_begin, var_name_end);
reg_info = reg_ctx->GetRegisterInfoByName (reg_name.c_str());
if (reg_info)
var_success = true;
}
}
}
}
}
}
else if (::strncmp (var_name_begin, "function.", strlen("function.")) == 0)
{
if (sc && (sc->function != NULL || sc->symbol != NULL))
{
var_name_begin += ::strlen ("function.");
if (::strncmp (var_name_begin, "id}", strlen("id}")) == 0)
{
if (sc->function)
s.Printf("function{0x%8.8" PRIx64 "}", sc->function->GetID());
else
s.Printf("symbol[%u]", sc->symbol->GetID());
var_success = true;
}
else if (::strncmp (var_name_begin, "name}", strlen("name}")) == 0)
{
if (sc->function)
cstr = sc->function->GetName().AsCString (NULL);
else if (sc->symbol)
cstr = sc->symbol->GetName().AsCString (NULL);
if (cstr)
{
s.PutCString(cstr);
if (sc->block)
{
Block *inline_block = sc->block->GetContainingInlinedBlock ();
if (inline_block)
{
const InlineFunctionInfo *inline_info = sc->block->GetInlinedFunctionInfo();
if (inline_info)
{
s.PutCString(" [inlined] ");
inline_info->GetName().Dump(&s);
}
}
}
var_success = true;
}
}
else if (::strncmp (var_name_begin, "name-with-args}", strlen("name-with-args}")) == 0)
{
// Print the function name with arguments in it
if (sc->function)
{
var_success = true;
ExecutionContextScope *exe_scope = exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL;
cstr = sc->function->GetName().AsCString (NULL);
if (cstr)
{
const InlineFunctionInfo *inline_info = NULL;
VariableListSP variable_list_sp;
bool get_function_vars = true;
if (sc->block)
{
Block *inline_block = sc->block->GetContainingInlinedBlock ();
if (inline_block)
{
get_function_vars = false;
inline_info = sc->block->GetInlinedFunctionInfo();
if (inline_info)
variable_list_sp = inline_block->GetBlockVariableList (true);
}
}
if (get_function_vars)
{
variable_list_sp = sc->function->GetBlock(true).GetBlockVariableList (true);
}
if (inline_info)
{
s.PutCString (cstr);
s.PutCString (" [inlined] ");
cstr = inline_info->GetName().GetCString();
}
VariableList args;
if (variable_list_sp)
variable_list_sp->AppendVariablesWithScope(eValueTypeVariableArgument, args);
if (args.GetSize() > 0)
{
const char *open_paren = strchr (cstr, '(');
const char *close_paren = NULL;
if (open_paren)
{
if (strncmp(open_paren, "(anonymous namespace)", strlen("(anonymous namespace)")) == 0)
{
open_paren = strchr (open_paren + strlen("(anonymous namespace)"), '(');
if (open_paren)
close_paren = strchr (open_paren, ')');
}
else
close_paren = strchr (open_paren, ')');
}
if (open_paren)
s.Write(cstr, open_paren - cstr + 1);
else
{
s.PutCString (cstr);
s.PutChar ('(');
}
const size_t num_args = args.GetSize();
for (size_t arg_idx = 0; arg_idx < num_args; ++arg_idx)
{
VariableSP var_sp (args.GetVariableAtIndex (arg_idx));
ValueObjectSP var_value_sp (ValueObjectVariable::Create (exe_scope, var_sp));
const char *var_name = var_value_sp->GetName().GetCString();
const char *var_value = var_value_sp->GetValueAsCString();
if (arg_idx > 0)
s.PutCString (", ");
if (var_value_sp->GetError().Success())
{
if (var_value)
s.Printf ("%s=%s", var_name, var_value);
else
s.Printf ("%s=%s at %s", var_name, var_value_sp->GetTypeName().GetCString(), var_value_sp->GetLocationAsCString());
}
else
s.Printf ("%s=<unavailable>", var_name);
}
if (close_paren)
s.PutCString (close_paren);
else
s.PutChar(')');
}
else
{
s.PutCString(cstr);
}
}
}
else if (sc->symbol)
{
cstr = sc->symbol->GetName().AsCString (NULL);
if (cstr)
{
s.PutCString(cstr);
var_success = true;
}
}
}
else if (::strncmp (var_name_begin, "addr-offset}", strlen("addr-offset}")) == 0)
{
var_success = addr != NULL;
if (var_success)
{
format_addr = *addr;
calculate_format_addr_function_offset = true;
}
}
else if (::strncmp (var_name_begin, "line-offset}", strlen("line-offset}")) == 0)
{
var_success = sc->line_entry.range.GetBaseAddress().IsValid();
if (var_success)
{
format_addr = sc->line_entry.range.GetBaseAddress();
calculate_format_addr_function_offset = true;
}
}
else if (::strncmp (var_name_begin, "pc-offset}", strlen("pc-offset}")) == 0)
{
StackFrame *frame = exe_ctx->GetFramePtr();
var_success = frame != NULL;
if (var_success)
{
format_addr = frame->GetFrameCodeAddress();
calculate_format_addr_function_offset = true;
}
}
}
}
break;
case 'l':
if (::strncmp (var_name_begin, "line.", strlen("line.")) == 0)
{
if (sc && sc->line_entry.IsValid())
{
var_name_begin += ::strlen ("line.");
if (::strncmp (var_name_begin, "file.", strlen("file.")) == 0)
{
var_name_begin += ::strlen ("file.");
if (::strncmp (var_name_begin, "basename}", strlen("basename}")) == 0)
{
format_file_spec.GetFilename() = sc->line_entry.file.GetFilename();
var_success = format_file_spec;
}
else if (::strncmp (var_name_begin, "fullpath}", strlen("fullpath}")) == 0)
{
format_file_spec = sc->line_entry.file;
var_success = format_file_spec;
}
}
else if (::strncmp (var_name_begin, "number}", strlen("number}")) == 0)
{
var_success = true;
s.Printf("%u", sc->line_entry.line);
}
else if ((::strncmp (var_name_begin, "start-addr}", strlen("start-addr}")) == 0) ||
(::strncmp (var_name_begin, "end-addr}", strlen("end-addr}")) == 0))
{
var_success = sc && sc->line_entry.range.GetBaseAddress().IsValid();
if (var_success)
{
format_addr = sc->line_entry.range.GetBaseAddress();
if (var_name_begin[0] == 'e')
format_addr.Slide (sc->line_entry.range.GetByteSize());
}
}
}
}
break;
}
if (var_success)
{
// If format addr is valid, then we need to print an address
if (reg_num != LLDB_INVALID_REGNUM)
{
StackFrame *frame = exe_ctx->GetFramePtr();
// We have a register value to display...
if (reg_num == LLDB_REGNUM_GENERIC_PC && reg_kind == eRegisterKindGeneric)
{
format_addr = frame->GetFrameCodeAddress();
}
else
{
if (reg_ctx == NULL)
reg_ctx = frame->GetRegisterContext().get();
if (reg_ctx)
{
if (reg_kind != kNumRegisterKinds)
reg_num = reg_ctx->ConvertRegisterKindToRegisterNumber(reg_kind, reg_num);
reg_info = reg_ctx->GetRegisterInfoAtIndex (reg_num);
var_success = reg_info != NULL;
}
}
}
if (reg_info != NULL)
{
RegisterValue reg_value;
var_success = reg_ctx->ReadRegister (reg_info, reg_value);
if (var_success)
{
reg_value.Dump(&s, reg_info, false, false, eFormatDefault);
}
}
if (format_file_spec)
{
s << format_file_spec;
}
// If format addr is valid, then we need to print an address
if (format_addr.IsValid())
{
var_success = false;
if (calculate_format_addr_function_offset)
{
Address func_addr;
if (sc)
{
if (sc->function)
{
func_addr = sc->function->GetAddressRange().GetBaseAddress();
if (sc->block)
{
// Check to make sure we aren't in an inline
// function. If we are, use the inline block
// range that contains "format_addr" since
// blocks can be discontiguous.
Block *inline_block = sc->block->GetContainingInlinedBlock ();
AddressRange inline_range;
if (inline_block && inline_block->GetRangeContainingAddress (format_addr, inline_range))
func_addr = inline_range.GetBaseAddress();
}
}
else if (sc->symbol && sc->symbol->ValueIsAddress())
func_addr = sc->symbol->GetAddress();
}
if (func_addr.IsValid())
{
if (func_addr.GetSection() == format_addr.GetSection())
{
addr_t func_file_addr = func_addr.GetFileAddress();
addr_t addr_file_addr = format_addr.GetFileAddress();
if (addr_file_addr > func_file_addr)
s.Printf(" + %" PRIu64, addr_file_addr - func_file_addr);
else if (addr_file_addr < func_file_addr)
s.Printf(" - %" PRIu64, func_file_addr - addr_file_addr);
var_success = true;
}
else
{
Target *target = Target::GetTargetFromContexts (exe_ctx, sc);
if (target)
{
addr_t func_load_addr = func_addr.GetLoadAddress (target);
addr_t addr_load_addr = format_addr.GetLoadAddress (target);
if (addr_load_addr > func_load_addr)
s.Printf(" + %" PRIu64, addr_load_addr - func_load_addr);
else if (addr_load_addr < func_load_addr)
s.Printf(" - %" PRIu64, func_load_addr - addr_load_addr);
var_success = true;
}
}
}
}
else
{
Target *target = Target::GetTargetFromContexts (exe_ctx, sc);
addr_t vaddr = LLDB_INVALID_ADDRESS;
if (exe_ctx && !target->GetSectionLoadList().IsEmpty())
vaddr = format_addr.GetLoadAddress (target);
if (vaddr == LLDB_INVALID_ADDRESS)
vaddr = format_addr.GetFileAddress ();
if (vaddr != LLDB_INVALID_ADDRESS)
{
int addr_width = target->GetArchitecture().GetAddressByteSize() * 2;
if (addr_width == 0)
addr_width = 16;
s.Printf("0x%*.*" PRIx64, addr_width, addr_width, vaddr);
var_success = true;
}
}
}
}
if (var_success == false)
success = false;
}
p = var_name_end;
}
else
break;
}
else
{
// We got a dollar sign with no '{' after it, it must just be a dollar sign
s.PutChar(*p);
}
}
else if (*p == '\\')
{
++p; // skip the slash
switch (*p)
{
case 'a': s.PutChar ('\a'); break;
case 'b': s.PutChar ('\b'); break;
case 'f': s.PutChar ('\f'); break;
case 'n': s.PutChar ('\n'); break;
case 'r': s.PutChar ('\r'); break;
case 't': s.PutChar ('\t'); break;
case 'v': s.PutChar ('\v'); break;
case '\'': s.PutChar ('\''); break;
case '\\': s.PutChar ('\\'); break;
case '0':
// 1 to 3 octal chars
{
// Make a string that can hold onto the initial zero char,
// up to 3 octal digits, and a terminating NULL.
char oct_str[5] = { 0, 0, 0, 0, 0 };
int i;
for (i=0; (p[i] >= '0' && p[i] <= '7') && i<4; ++i)
oct_str[i] = p[i];
// We don't want to consume the last octal character since
// the main for loop will do this for us, so we advance p by
// one less than i (even if i is zero)
p += i - 1;
unsigned long octal_value = ::strtoul (oct_str, NULL, 8);
if (octal_value <= UINT8_MAX)
{
s.PutChar((char)octal_value);
}
}
break;
case 'x':
// hex number in the format
if (isxdigit(p[1]))
{
++p; // Skip the 'x'
// Make a string that can hold onto two hex chars plus a
// NULL terminator
char hex_str[3] = { 0,0,0 };
hex_str[0] = *p;
if (isxdigit(p[1]))
{
++p; // Skip the first of the two hex chars
hex_str[1] = *p;
}
unsigned long hex_value = strtoul (hex_str, NULL, 16);
if (hex_value <= UINT8_MAX)
s.PutChar ((char)hex_value);
}
else
{
s.PutChar('x');
}
break;
default:
// Just desensitize any other character by just printing what
// came after the '\'
s << *p;
break;
}
}
}
if (end)
*end = p;
return success;
}
bool
Debugger::FormatPrompt
(
const char *format,
const SymbolContext *sc,
const ExecutionContext *exe_ctx,
const Address *addr,
Stream &s,
ValueObject* valobj
)
{
bool use_color = exe_ctx ? exe_ctx->GetTargetRef().GetDebugger().GetUseColor() : true;
std::string format_str = lldb_utility::ansi::FormatAnsiTerminalCodes (format, use_color);
if (format_str.length())
format = format_str.c_str();
return FormatPromptRecurse (format, sc, exe_ctx, addr, s, NULL, valobj);
}
void
Debugger::SetLoggingCallback (lldb::LogOutputCallback log_callback, void *baton)
{
// For simplicity's sake, I am not going to deal with how to close down any
// open logging streams, I just redirect everything from here on out to the
// callback.
m_log_callback_stream_sp.reset (new StreamCallback (log_callback, baton));
}
bool
Debugger::EnableLog (const char *channel, const char **categories, const char *log_file, uint32_t log_options, Stream &error_stream)
{
Log::Callbacks log_callbacks;
StreamSP log_stream_sp;
if (m_log_callback_stream_sp)
{
log_stream_sp = m_log_callback_stream_sp;
// For now when using the callback mode you always get thread & timestamp.
log_options |= LLDB_LOG_OPTION_PREPEND_TIMESTAMP | LLDB_LOG_OPTION_PREPEND_THREAD_NAME;
}
else if (log_file == NULL || *log_file == '\0')
{
log_stream_sp.reset(new StreamFile(GetOutputFile().GetDescriptor(), false));
}
else
{
LogStreamMap::iterator pos = m_log_streams.find(log_file);
if (pos != m_log_streams.end())
log_stream_sp = pos->second.lock();
if (!log_stream_sp)
{
log_stream_sp.reset (new StreamFile (log_file));
m_log_streams[log_file] = log_stream_sp;
}
}
assert (log_stream_sp.get());
if (log_options == 0)
log_options = LLDB_LOG_OPTION_PREPEND_THREAD_NAME | LLDB_LOG_OPTION_THREADSAFE;
if (Log::GetLogChannelCallbacks (ConstString(channel), log_callbacks))
{
log_callbacks.enable (log_stream_sp, log_options, categories, &error_stream);
return true;
}
else
{
LogChannelSP log_channel_sp (LogChannel::FindPlugin (channel));
if (log_channel_sp)
{
if (log_channel_sp->Enable (log_stream_sp, log_options, &error_stream, categories))
{
return true;
}
else
{
error_stream.Printf ("Invalid log channel '%s'.\n", channel);
return false;
}
}
else
{
error_stream.Printf ("Invalid log channel '%s'.\n", channel);
return false;
}
}
return false;
}
SourceManager &
Debugger::GetSourceManager ()
{
if (m_source_manager_ap.get() == NULL)
m_source_manager_ap.reset (new SourceManager (shared_from_this()));
return *m_source_manager_ap;
}
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