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21dfcd9d41a1a325cd373bb0fcc0172400e94f44
llvm-project/lldb/source/Core/Debugger.cpp
Enrico Granata 21dfcd9d41 Implementing plugins that provide commands. 
This checkin adds the capability for LLDB to load plugins from external dylibs that can provide new commands
It exports an SBCommand class from the public API layer, and a new SBCommandPluginInterface

There is a minimal load-only plugin manager built into the debugger, which can be accessed via Debugger::LoadPlugin.

Plugins are loaded from two locations at debugger startup (LLDB.framework/Resources/PlugIns and ~/Library/Application Support/LLDB/PlugIns) and more can be (re)loaded via the "plugin load" command

For an example of how to make a plugin, refer to the fooplugin.cpp file in examples/plugins/commands

Caveats:
	Currently, the new API objects and features are not exposed via Python.
	The new commands can only be "parsed" (i.e. not raw) and get their command line via a char** parameter (we do not expose our internal Args object)
	There is no unloading feature, which can potentially lead to leaks if you overwrite the commands by reloading the same or different plugins
	There is no API exposed for option parsing, which means you may need to use getopt or roll-your-own

llvm-svn: 164865
2012-09-28 23:57:51 +00:00

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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/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/DataVisualization.h"
#include "lldb/Core/FormatManager.h"
#include "lldb/Core/InputReader.h"
#include "lldb/Core/Module.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/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/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\
"{, 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." },
{ NULL, OptionValue::eTypeInvalid, true, 0 , NULL, NULL, NULL }
};
enum
{
ePropertyAutoConfirm = 0,
ePropertyFrameFormat,
ePropertyNotiftVoid,
ePropertyPrompt,
ePropertyScriptLanguage,
ePropertyStopDisassemblyCount,
ePropertyStopDisassemblyDisplay,
ePropertyStopLineCountAfter,
ePropertyStopLineCountBefore,
ePropertyTerminalWidth,
ePropertyThreadFormat,
ePropertyUseExternalEditor
};
//
//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)
{
Error error (Properties::SetPropertyValue (exe_ctx, op, property_path, value));
if (error.Success())
{
if (strcmp(property_path, g_properties[ePropertyPrompt].name) == 0)
{
const char *new_prompt = GetPrompt();
EventSP prompt_change_event_sp (new Event(CommandInterpreter::eBroadcastBitResetPrompt, new EventDataBytes (new_prompt)));
GetCommandInterpreter().BroadcastEvent (prompt_change_event_sp);
}
}
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();
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);
}
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)
{
lldb::DynamicLibrarySP dynlib_sp(new lldb_private::DynamicLibrary(spec));
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)
return false;
if (init_func(debugger_sb))
{
m_loaded_plugins.push_back(dynlib_sp);
return true;
}
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;
debugger->LoadPlugin (plugin_file_spec);
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);
}
}
}
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_target_list (*this),
m_platform_list (),
m_listener ("lldb.Debugger"),
m_source_manager(*this),
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);
}
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)
{
if (process_sp->GetShouldDetach())
process_sp->Detach();
}
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.
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);
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);
GetCommandInterpreter().GetScriptInterpreter()->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);
}
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));
}
uint32_t
Debugger::GetNumDebuggers()
{
if (g_shared_debugger_refcount > 0)
{
Mutex::Locker locker (GetDebuggerListMutex ());
return GetDebuggerList().size();
}
return 0;
}
lldb::DebuggerSP
Debugger::GetDebuggerAtIndex (uint32_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);
const char *end = NULL;
if (Debugger::FormatPrompt (prompt_format, &sc, &exe_ctx, &sc.line_entry.range.GetBaseAddress(), s, &end))
{
printf("%s\n", s.GetData());
}
else
{
printf ("error: at '%s'\n", end);
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)
{
LogSP 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("no format descriptor in string, skipping");
*var_name_final = var_name_end;
}
else
{
*var_name_final = *percent_position;
char* format_name = new char[var_name_end-*var_name_final]; format_name[var_name_end-*var_name_final-1] = '\0';
memcpy(format_name, *var_name_final+1, var_name_end-*var_name_final-1);
if (log)
log->Printf("parsing %s as a format descriptor", format_name);
if ( !FormatManager::GetFormatFromCString(format_name,
true,
*custom_format) )
{
if (log)
log->Printf("%s is an unknown format", format_name);
// if this is an @ sign, print ObjC description
if (*format_name == '@')
*val_obj_display = ValueObject::eValueObjectRepresentationStyleLanguageSpecific;
// if this is a V, print the value using the default format
else if (*format_name == 'V')
*val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
// if this is an L, print the location of the value
else if (*format_name == 'L')
*val_obj_display = ValueObject::eValueObjectRepresentationStyleLocation;
// if this is an S, print the summary after all
else if (*format_name == 'S')
*val_obj_display = ValueObject::eValueObjectRepresentationStyleSummary;
else if (*format_name == '#')
*val_obj_display = ValueObject::eValueObjectRepresentationStyleChildrenCount;
else if (*format_name == 'T')
*val_obj_display = ValueObject::eValueObjectRepresentationStyleType;
else if (log)
log->Printf("%s is an error, leaving the previous value alone", format_name);
}
// a good custom format tells us to print the value using it
else
{
if (log)
log->Printf("will display value for this VO");
*val_obj_display = ValueObject::eValueObjectRepresentationStyleValue;
}
delete format_name;
}
if (log)
log->Printf("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)
{
LogSP 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("[] 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("[%lld] 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("[%lld-%lld] detected", *index_lower, *index_higher);
}
else
{
if (log)
log->Printf("expression is erroneous, cannot extract indices out of it");
return false;
}
if (*index_lower > *index_higher && *index_higher > 0)
{
if (log)
log->Printf("swapping indices");
int temp = *index_lower;
*index_lower = *index_higher;
*index_higher = temp;
}
}
else if (log)
log->Printf("no bracketed range, skipping entirely");
return true;
}
static ValueObjectSP
ExpandIndexedExpression (ValueObject* valobj,
uint32_t index,
StackFrame* frame,
bool deref_pointer)
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
const char* ptr_deref_format = "[%d]";
std::auto_ptr<char> ptr_deref_buffer(new char[10]);
::sprintf(ptr_deref_buffer.get(), ptr_deref_format, index);
if (log)
log->Printf("name to deref: %s",ptr_deref_buffer.get());
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.get(),
&first_unparsed,
&reason_to_stop,
&final_value_type,
options,
&what_next);
if (!item)
{
if (log)
log->Printf("ERROR: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
}
else
{
if (log)
log->Printf("ALL RIGHT: unparsed portion = %s, why stopping = %d,"
" final_value_type %d",
first_unparsed, reason_to_stop, final_value_type);
}
return item;
}
bool
Debugger::FormatPrompt
(
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;
LogSP 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 (FormatPrompt (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("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("initial string: %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("initial string: %s",var_name_begin);
// should be a 'v' by now
if (*var_name_begin != 'v')
break;
if (log)
log->Printf("initial string: %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::auto_ptr<char> expr_path(new char[var_name_final-var_name_begin-1]);
::memset(expr_path.get(), 0, var_name_final-var_name_begin-1);
memcpy(expr_path.get(), var_name_begin+3,var_name_final-var_name_begin-3);
if (log)
log->Printf("symbol to expand: %s",expr_path.get());
target = valobj->GetValueForExpressionPath(expr_path.get(),
&first_unparsed,
&reason_to_stop,
&final_value_type,
options,
&what_next).get();
if (!target)
{
if (log)
log->Printf("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("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("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());
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("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("special cases did%s match", var_success ? "" : "n't");
// should not happen
if (!var_success)
s << "<invalid usage of pointer value as object>";
else
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);
}
else
{
s << "<invalid usage of pointer value as object>";
}
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 ${var%V}, and this is an aggregate, do not let the user do it
if (is_aggregate && ((was_var_format && val_obj_display == ValueObject::eValueObjectRepresentationStyleValue)))
{
s << "<invalid use of aggregate type>";
var_success = true;
break;
}
if (!is_array_range)
{
if (log)
log->Printf("dumping ordinary printable output");
var_success = target->DumpPrintableRepresentation(s,val_obj_display, custom_format);
}
else
{
if (log)
log->Printf("checking if I can handle as array");
if (!is_array && !is_pointer)
break;
if (log)
log->Printf("handle as array");
const char* special_directions = NULL;
StreamString special_directions_writer;
if (close_bracket_position && (var_name_end-close_bracket_position > 1))
{
ConstString additional_data;
additional_data.SetCStringWithLength(close_bracket_position+1, var_name_end-close_bracket_position-1);
special_directions_writer.Printf("${%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("ERROR in getting child item at index %lld", index_lower);
}
else
{
if (log)
log->Printf("special_directions for child item: %s",special_directions);
}
if (!special_directions)
var_success &= item->DumpPrintableRepresentation(s,val_obj_display, custom_format);
else
var_success &= FormatPrompt(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;
}
}
else if (::strncmp (var_name_begin, "ansi.", strlen("ansi.")) == 0)
{
var_success = true;
var_name_begin += strlen("ansi."); // Skip the "ansi."
if (::strncmp (var_name_begin, "fg.", strlen("fg.")) == 0)
{
var_name_begin += strlen("fg."); // Skip the "fg."
if (::strncmp (var_name_begin, "black}", strlen("black}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_black,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "red}", strlen("red}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_red,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "green}", strlen("green}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_green,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "yellow}", strlen("yellow}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_yellow,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "blue}", strlen("blue}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_blue,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "purple}", strlen("purple}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_purple,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "cyan}", strlen("cyan}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_cyan,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "white}", strlen("white}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_fg_white,
lldb_utility::ansi::k_escape_end);
}
else
{
var_success = false;
}
}
else if (::strncmp (var_name_begin, "bg.", strlen("bg.")) == 0)
{
var_name_begin += strlen("bg."); // Skip the "bg."
if (::strncmp (var_name_begin, "black}", strlen("black}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_black,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "red}", strlen("red}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_red,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "green}", strlen("green}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_green,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "yellow}", strlen("yellow}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_yellow,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "blue}", strlen("blue}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_blue,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "purple}", strlen("purple}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_purple,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "cyan}", strlen("cyan}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_cyan,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "white}", strlen("white}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_bg_white,
lldb_utility::ansi::k_escape_end);
}
else
{
var_success = false;
}
}
else if (::strncmp (var_name_begin, "normal}", strlen ("normal}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_normal,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "bold}", strlen("bold}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_bold,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "faint}", strlen("faint}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_faint,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "italic}", strlen("italic}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_italic,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "underline}", strlen("underline}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_underline,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "slow-blink}", strlen("slow-blink}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_slow_blink,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "fast-blink}", strlen("fast-blink}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_fast_blink,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "negative}", strlen("negative}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_negative,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "conceal}", strlen("conceal}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_conceal,
lldb_utility::ansi::k_escape_end);
}
else if (::strncmp (var_name_begin, "crossed-out}", strlen("crossed-out}")) == 0)
{
s.Printf ("%s%s%s",
lldb_utility::ansi::k_escape_start,
lldb_utility::ansi::k_ctrl_crossed_out,
lldb_utility::ansi::k_escape_end);
}
else
{
var_success = false;
}
}
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("%llu", 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%4.4llx", thread->GetID());
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)
{
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)
{
ValueObjectSP return_valobj_sp = StopInfo::GetReturnValueObject (stop_info_sp);
if (return_valobj_sp)
{
ValueObject::DumpValueObjectOptions dump_options;
ValueObject::DumpValueObject (s, return_valobj_sp.get(), dump_options);
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%8.8llx}", 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)
{
const size_t num_variables = variable_list_sp->GetSize();
for (size_t var_idx = 0; var_idx < num_variables; ++var_idx)
{
VariableSP var_sp (variable_list_sp->GetVariableAtIndex(var_idx));
if (var_sp->GetScope() == eValueTypeVariableArgument)
args.AddVariable (var_sp);
}
}
if (args.GetSize() > 0)
{
const char *open_paren = strchr (cstr, '(');
const char *close_paren = NULL;
if (open_paren)
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 (var_value_sp->GetError().Success())
{
if (arg_idx > 0)
s.PutCString (", ");
s.Printf ("%s=%s", var_name, var_value);
}
}
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(" + %llu", addr_file_addr - func_file_addr);
else if (addr_file_addr < func_file_addr)
s.Printf(" - %llu", 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(" + %llu", addr_load_addr - func_load_addr);
else if (addr_load_addr < func_load_addr)
s.Printf(" - %llu", 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%*.*llx", 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)
{
char octal_char = octal_value;
s.Write (&octal_char, 1);
}
}
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 (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;
}
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.reset (new StreamFile (log_file));
m_log_streams[log_file] = log_stream_sp;
}
else
log_stream_sp = pos->second;
}
assert (log_stream_sp.get());
if (log_options == 0)
log_options = LLDB_LOG_OPTION_PREPEND_THREAD_NAME | LLDB_LOG_OPTION_THREADSAFE;
if (Log::GetLogChannelCallbacks (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;
}
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