0c489f58cd
2) providing an updated list of tagged pointers values for the objc_runtime module - hopefully this one is final 3) changing ValueObject::DumpValueObject to use an Options class instead of providing a bulky list of parameters to pass around this change had been laid out previously, but some clients of DumpValueObject() were still using the old prototype and some arguments were treated in a special way and passed in directly instead of through the Options class 4) providing new GetSummaryAsCString() and GetValueAsCString() calls in ValueObject that are passed a formatter object and a destination string and fill the string by formatting themselves using the formatter argument instead of the default for the current ValueObject 5) removing the option to have formats and summaries stick to a variable for the current stoppoint after some debate, we are going with non-sticky: if you say frame variable --format hex foo, the hex format will only be applied to the current command execution and not stick when redisplaying foo the other option would be full stickiness, which means that foo would be formatted as hex for its whole lifetime we are open to suggestions on what feels "natural" in this regard llvm-svn: 151801
3855 lines
147 KiB
C++
3855 lines
147 KiB
C++
//===-- ValueObject.cpp -----------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/ValueObject.h"
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// C Includes
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#include <stdlib.h>
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// C++ Includes
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// Other libraries and framework includes
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#include "llvm/Support/raw_ostream.h"
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#include "clang/AST/Type.h"
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// Project includes
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/DataVisualization.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/StreamString.h"
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#include "lldb/Core/ValueObjectChild.h"
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#include "lldb/Core/ValueObjectConstResult.h"
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#include "lldb/Core/ValueObjectDynamicValue.h"
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#include "lldb/Core/ValueObjectList.h"
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#include "lldb/Core/ValueObjectMemory.h"
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#include "lldb/Core/ValueObjectSyntheticFilter.h"
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#include "lldb/Host/Endian.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/ScriptInterpreterPython.h"
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#include "lldb/Symbol/ClangASTType.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Symbol/Type.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/LanguageRuntime.h"
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#include "lldb/Target/ObjCLanguageRuntime.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/RegisterContext.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Utility/RefCounter.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_utility;
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static user_id_t g_value_obj_uid = 0;
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//----------------------------------------------------------------------
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// ValueObject constructor
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//----------------------------------------------------------------------
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ValueObject::ValueObject (ValueObject &parent) :
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UserID (++g_value_obj_uid), // Unique identifier for every value object
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m_parent (&parent),
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m_update_point (parent.GetUpdatePoint ()),
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m_name (),
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m_data (),
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m_value (),
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m_error (),
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m_value_str (),
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m_old_value_str (),
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m_location_str (),
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m_summary_str (),
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m_object_desc_str (),
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m_manager(parent.GetManager()),
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m_children (),
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m_synthetic_children (),
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m_dynamic_value (NULL),
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m_synthetic_value(NULL),
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m_deref_valobj(NULL),
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m_format (eFormatDefault),
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m_last_format_mgr_revision(0),
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m_last_format_mgr_dynamic(parent.m_last_format_mgr_dynamic),
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m_type_summary_sp(),
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m_type_format_sp(),
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m_synthetic_children_sp(),
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m_user_id_of_forced_summary(),
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m_address_type_of_ptr_or_ref_children(eAddressTypeInvalid),
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m_value_is_valid (false),
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m_value_did_change (false),
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m_children_count_valid (false),
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m_old_value_valid (false),
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m_is_deref_of_parent (false),
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m_is_array_item_for_pointer(false),
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m_is_bitfield_for_scalar(false),
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m_is_expression_path_child(false),
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m_is_child_at_offset(false),
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m_is_getting_summary(false),
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m_did_calculate_complete_objc_class_type(false)
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{
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m_manager->ManageObject(this);
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}
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//----------------------------------------------------------------------
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// ValueObject constructor
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//----------------------------------------------------------------------
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ValueObject::ValueObject (ExecutionContextScope *exe_scope,
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AddressType child_ptr_or_ref_addr_type) :
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UserID (++g_value_obj_uid), // Unique identifier for every value object
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m_parent (NULL),
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m_update_point (exe_scope),
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m_name (),
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m_data (),
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m_value (),
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m_error (),
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m_value_str (),
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m_old_value_str (),
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m_location_str (),
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m_summary_str (),
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m_object_desc_str (),
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m_manager(),
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m_children (),
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m_synthetic_children (),
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m_dynamic_value (NULL),
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m_synthetic_value(NULL),
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m_deref_valobj(NULL),
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m_format (eFormatDefault),
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m_last_format_mgr_revision(0),
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m_last_format_mgr_dynamic(eNoDynamicValues),
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m_type_summary_sp(),
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m_type_format_sp(),
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m_synthetic_children_sp(),
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m_user_id_of_forced_summary(),
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m_address_type_of_ptr_or_ref_children(child_ptr_or_ref_addr_type),
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m_value_is_valid (false),
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m_value_did_change (false),
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m_children_count_valid (false),
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m_old_value_valid (false),
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m_is_deref_of_parent (false),
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m_is_array_item_for_pointer(false),
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m_is_bitfield_for_scalar(false),
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m_is_expression_path_child(false),
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m_is_child_at_offset(false),
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m_is_getting_summary(false),
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m_did_calculate_complete_objc_class_type(false)
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{
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m_manager = new ValueObjectManager();
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m_manager->ManageObject (this);
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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ValueObject::~ValueObject ()
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{
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}
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bool
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ValueObject::UpdateValueIfNeeded (bool update_format)
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{
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return UpdateValueIfNeeded(m_last_format_mgr_dynamic, update_format);
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}
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bool
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ValueObject::UpdateValueIfNeeded (DynamicValueType use_dynamic, bool update_format)
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{
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bool did_change_formats = false;
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if (update_format)
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did_change_formats = UpdateFormatsIfNeeded(use_dynamic);
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// If this is a constant value, then our success is predicated on whether
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// we have an error or not
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if (GetIsConstant())
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{
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// if you were asked to update your formatters, but did not get a chance to do it
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// clear your own values (this serves the purpose of faking a stop-id for frozen
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// objects (which are regarded as constant, but could have changes behind their backs
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// because of the frozen-pointer depth limit)
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// TODO: decouple summary from value and then remove this code and only force-clear the summary
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if (update_format && !did_change_formats)
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m_summary_str.clear();
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return m_error.Success();
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}
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bool first_update = m_update_point.IsFirstEvaluation();
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if (m_update_point.NeedsUpdating())
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{
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m_update_point.SetUpdated();
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// Save the old value using swap to avoid a string copy which
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// also will clear our m_value_str
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if (m_value_str.empty())
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{
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m_old_value_valid = false;
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}
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else
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{
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m_old_value_valid = true;
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m_old_value_str.swap (m_value_str);
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m_value_str.clear();
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}
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ClearUserVisibleData();
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const bool value_was_valid = GetValueIsValid();
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SetValueDidChange (false);
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m_error.Clear();
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// Call the pure virtual function to update the value
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bool success = UpdateValue ();
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SetValueIsValid (success);
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if (first_update)
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SetValueDidChange (false);
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else if (!m_value_did_change && success == false)
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{
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// The value wasn't gotten successfully, so we mark this
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// as changed if the value used to be valid and now isn't
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SetValueDidChange (value_was_valid);
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}
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}
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return m_error.Success();
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}
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bool
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ValueObject::UpdateFormatsIfNeeded(DynamicValueType use_dynamic)
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_TYPES));
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if (log)
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log->Printf("checking for FormatManager revisions. VO named %s is at revision %d, while the format manager is at revision %d",
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GetName().GetCString(),
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m_last_format_mgr_revision,
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DataVisualization::GetCurrentRevision());
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bool any_change = false;
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if ( (m_last_format_mgr_revision != DataVisualization::GetCurrentRevision()) ||
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m_last_format_mgr_dynamic != use_dynamic)
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{
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SetValueFormat(DataVisualization::ValueFormats::GetFormat (*this, eNoDynamicValues));
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SetSummaryFormat(DataVisualization::GetSummaryFormat (*this, use_dynamic));
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SetSyntheticChildren(DataVisualization::GetSyntheticChildren (*this, use_dynamic));
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m_last_format_mgr_revision = DataVisualization::GetCurrentRevision();
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m_last_format_mgr_dynamic = use_dynamic;
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any_change = true;
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}
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return any_change;
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}
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void
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ValueObject::SetNeedsUpdate ()
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{
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m_update_point.SetNeedsUpdate();
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// We have to clear the value string here so ConstResult children will notice if their values are
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// changed by hand (i.e. with SetValueAsCString).
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m_value_str.clear();
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}
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ClangASTType
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ValueObject::MaybeCalculateCompleteType ()
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{
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ClangASTType ret(GetClangASTImpl(), GetClangTypeImpl());
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if (m_did_calculate_complete_objc_class_type)
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{
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if (m_override_type.IsValid())
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return m_override_type;
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else
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return ret;
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}
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clang_type_t ast_type(GetClangTypeImpl());
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clang_type_t class_type;
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bool is_pointer_type;
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if (ClangASTContext::IsObjCObjectPointerType(ast_type, &class_type))
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{
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is_pointer_type = true;
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}
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else if (ClangASTContext::IsObjCClassType(ast_type))
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{
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is_pointer_type = false;
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class_type = ast_type;
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}
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else
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{
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return ret;
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}
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m_did_calculate_complete_objc_class_type = true;
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if (!class_type)
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return ret;
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std::string class_name;
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if (!ClangASTContext::GetObjCClassName(class_type, class_name))
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return ret;
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ProcessSP process_sp(GetUpdatePoint().GetExecutionContextRef().GetProcessSP());
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if (!process_sp)
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return ret;
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ObjCLanguageRuntime *objc_language_runtime(process_sp->GetObjCLanguageRuntime());
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if (!objc_language_runtime)
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return ret;
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ConstString class_name_cs(class_name.c_str());
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TypeSP complete_objc_class_type_sp = objc_language_runtime->LookupInCompleteClassCache(class_name_cs);
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if (!complete_objc_class_type_sp)
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return ret;
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ClangASTType complete_class(complete_objc_class_type_sp->GetClangAST(),
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complete_objc_class_type_sp->GetClangFullType());
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if (!ClangASTContext::GetCompleteType(complete_class.GetASTContext(),
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complete_class.GetOpaqueQualType()))
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return ret;
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if (is_pointer_type)
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{
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clang_type_t pointer_type = ClangASTContext::CreatePointerType(complete_class.GetASTContext(),
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complete_class.GetOpaqueQualType());
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m_override_type = ClangASTType(complete_class.GetASTContext(),
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pointer_type);
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}
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else
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{
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m_override_type = complete_class;
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}
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return m_override_type;
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}
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clang::ASTContext *
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ValueObject::GetClangAST ()
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{
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ClangASTType type = MaybeCalculateCompleteType();
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return type.GetASTContext();
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}
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lldb::clang_type_t
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ValueObject::GetClangType ()
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{
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ClangASTType type = MaybeCalculateCompleteType();
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return type.GetOpaqueQualType();
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}
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DataExtractor &
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ValueObject::GetDataExtractor ()
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{
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UpdateValueIfNeeded(false);
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return m_data;
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}
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const Error &
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ValueObject::GetError()
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{
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UpdateValueIfNeeded(false);
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return m_error;
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}
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const ConstString &
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ValueObject::GetName() const
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{
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return m_name;
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}
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const char *
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ValueObject::GetLocationAsCString ()
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{
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if (UpdateValueIfNeeded(false))
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{
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if (m_location_str.empty())
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{
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StreamString sstr;
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switch (m_value.GetValueType())
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{
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default:
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break;
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case Value::eValueTypeScalar:
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if (m_value.GetContextType() == Value::eContextTypeRegisterInfo)
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{
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RegisterInfo *reg_info = m_value.GetRegisterInfo();
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if (reg_info)
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{
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if (reg_info->name)
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m_location_str = reg_info->name;
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else if (reg_info->alt_name)
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m_location_str = reg_info->alt_name;
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break;
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}
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}
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m_location_str = "scalar";
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break;
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case Value::eValueTypeLoadAddress:
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case Value::eValueTypeFileAddress:
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case Value::eValueTypeHostAddress:
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{
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uint32_t addr_nibble_size = m_data.GetAddressByteSize() * 2;
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sstr.Printf("0x%*.*llx", addr_nibble_size, addr_nibble_size, m_value.GetScalar().ULongLong(LLDB_INVALID_ADDRESS));
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m_location_str.swap(sstr.GetString());
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}
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break;
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}
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}
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}
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return m_location_str.c_str();
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}
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Value &
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ValueObject::GetValue()
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{
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return m_value;
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}
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const Value &
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ValueObject::GetValue() const
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{
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return m_value;
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}
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bool
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ValueObject::ResolveValue (Scalar &scalar)
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{
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if (UpdateValueIfNeeded(false)) // make sure that you are up to date before returning anything
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{
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ExecutionContext exe_ctx (GetExecutionContextRef());
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Value tmp_value(m_value);
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scalar = tmp_value.ResolveValue(&exe_ctx, GetClangAST ());
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if (scalar.IsValid())
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{
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const uint32_t bitfield_bit_size = GetBitfieldBitSize();
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if (bitfield_bit_size)
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return scalar.ExtractBitfield (bitfield_bit_size, GetBitfieldBitOffset());
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return true;
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}
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}
|
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return false;
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}
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|
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bool
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ValueObject::GetValueIsValid () const
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{
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return m_value_is_valid;
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}
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void
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ValueObject::SetValueIsValid (bool b)
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{
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m_value_is_valid = b;
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}
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bool
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ValueObject::GetValueDidChange ()
|
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{
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GetValueAsCString ();
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return m_value_did_change;
|
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}
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|
|
|
void
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ValueObject::SetValueDidChange (bool value_changed)
|
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{
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m_value_did_change = value_changed;
|
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}
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|
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ValueObjectSP
|
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ValueObject::GetChildAtIndex (uint32_t idx, bool can_create)
|
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{
|
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ValueObjectSP child_sp;
|
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// We may need to update our value if we are dynamic
|
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if (IsPossibleDynamicType ())
|
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UpdateValueIfNeeded(false);
|
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if (idx < GetNumChildren())
|
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{
|
|
// Check if we have already made the child value object?
|
|
if (can_create && m_children[idx] == NULL)
|
|
{
|
|
// No we haven't created the child at this index, so lets have our
|
|
// subclass do it and cache the result for quick future access.
|
|
m_children[idx] = CreateChildAtIndex (idx, false, 0);
|
|
}
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|
|
if (m_children[idx] != NULL)
|
|
return m_children[idx]->GetSP();
|
|
}
|
|
return child_sp;
|
|
}
|
|
|
|
uint32_t
|
|
ValueObject::GetIndexOfChildWithName (const ConstString &name)
|
|
{
|
|
bool omit_empty_base_classes = true;
|
|
return ClangASTContext::GetIndexOfChildWithName (GetClangAST(),
|
|
GetClangType(),
|
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name.GetCString(),
|
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omit_empty_base_classes);
|
|
}
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ValueObjectSP
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ValueObject::GetChildMemberWithName (const ConstString &name, bool can_create)
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{
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// when getting a child by name, it could be buried inside some base
|
|
// classes (which really aren't part of the expression path), so we
|
|
// need a vector of indexes that can get us down to the correct child
|
|
ValueObjectSP child_sp;
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|
|
// We may need to update our value if we are dynamic
|
|
if (IsPossibleDynamicType ())
|
|
UpdateValueIfNeeded(false);
|
|
|
|
std::vector<uint32_t> child_indexes;
|
|
clang::ASTContext *clang_ast = GetClangAST();
|
|
void *clang_type = GetClangType();
|
|
bool omit_empty_base_classes = true;
|
|
const size_t num_child_indexes = ClangASTContext::GetIndexOfChildMemberWithName (clang_ast,
|
|
clang_type,
|
|
name.GetCString(),
|
|
omit_empty_base_classes,
|
|
child_indexes);
|
|
if (num_child_indexes > 0)
|
|
{
|
|
std::vector<uint32_t>::const_iterator pos = child_indexes.begin ();
|
|
std::vector<uint32_t>::const_iterator end = child_indexes.end ();
|
|
|
|
child_sp = GetChildAtIndex(*pos, can_create);
|
|
for (++pos; pos != end; ++pos)
|
|
{
|
|
if (child_sp)
|
|
{
|
|
ValueObjectSP new_child_sp(child_sp->GetChildAtIndex (*pos, can_create));
|
|
child_sp = new_child_sp;
|
|
}
|
|
else
|
|
{
|
|
child_sp.reset();
|
|
}
|
|
|
|
}
|
|
}
|
|
return child_sp;
|
|
}
|
|
|
|
|
|
uint32_t
|
|
ValueObject::GetNumChildren ()
|
|
{
|
|
if (!m_children_count_valid)
|
|
{
|
|
SetNumChildren (CalculateNumChildren());
|
|
}
|
|
return m_children.size();
|
|
}
|
|
void
|
|
ValueObject::SetNumChildren (uint32_t num_children)
|
|
{
|
|
m_children_count_valid = true;
|
|
m_children.resize(num_children);
|
|
}
|
|
|
|
void
|
|
ValueObject::SetName (const ConstString &name)
|
|
{
|
|
m_name = name;
|
|
}
|
|
|
|
ValueObject *
|
|
ValueObject::CreateChildAtIndex (uint32_t idx, bool synthetic_array_member, int32_t synthetic_index)
|
|
{
|
|
ValueObject *valobj = NULL;
|
|
|
|
bool omit_empty_base_classes = true;
|
|
bool ignore_array_bounds = synthetic_array_member;
|
|
std::string child_name_str;
|
|
uint32_t child_byte_size = 0;
|
|
int32_t child_byte_offset = 0;
|
|
uint32_t child_bitfield_bit_size = 0;
|
|
uint32_t child_bitfield_bit_offset = 0;
|
|
bool child_is_base_class = false;
|
|
bool child_is_deref_of_parent = false;
|
|
|
|
const bool transparent_pointers = synthetic_array_member == false;
|
|
clang::ASTContext *clang_ast = GetClangAST();
|
|
clang_type_t clang_type = GetClangType();
|
|
clang_type_t child_clang_type;
|
|
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
|
|
child_clang_type = ClangASTContext::GetChildClangTypeAtIndex (&exe_ctx,
|
|
clang_ast,
|
|
GetName().GetCString(),
|
|
clang_type,
|
|
idx,
|
|
transparent_pointers,
|
|
omit_empty_base_classes,
|
|
ignore_array_bounds,
|
|
child_name_str,
|
|
child_byte_size,
|
|
child_byte_offset,
|
|
child_bitfield_bit_size,
|
|
child_bitfield_bit_offset,
|
|
child_is_base_class,
|
|
child_is_deref_of_parent);
|
|
if (child_clang_type && child_byte_size)
|
|
{
|
|
if (synthetic_index)
|
|
child_byte_offset += child_byte_size * synthetic_index;
|
|
|
|
ConstString child_name;
|
|
if (!child_name_str.empty())
|
|
child_name.SetCString (child_name_str.c_str());
|
|
|
|
valobj = new ValueObjectChild (*this,
|
|
clang_ast,
|
|
child_clang_type,
|
|
child_name,
|
|
child_byte_size,
|
|
child_byte_offset,
|
|
child_bitfield_bit_size,
|
|
child_bitfield_bit_offset,
|
|
child_is_base_class,
|
|
child_is_deref_of_parent,
|
|
eAddressTypeInvalid);
|
|
//if (valobj)
|
|
// valobj->SetAddressTypeOfChildren(eAddressTypeInvalid);
|
|
}
|
|
|
|
return valobj;
|
|
}
|
|
|
|
bool
|
|
ValueObject::GetSummaryAsCString (TypeSummaryImpl* summary_ptr,
|
|
std::string& destination)
|
|
{
|
|
destination.clear();
|
|
|
|
// ideally we would like to bail out if passing NULL, but if we do so
|
|
// we end up not providing the summary for function pointers anymore
|
|
if (/*summary_ptr == NULL ||*/ m_is_getting_summary)
|
|
return false;
|
|
|
|
m_is_getting_summary = true;
|
|
if (UpdateValueIfNeeded (false))
|
|
{
|
|
if (summary_ptr)
|
|
{
|
|
summary_ptr->FormatObject(GetSP(), destination);
|
|
}
|
|
else
|
|
{
|
|
clang_type_t clang_type = GetClangType();
|
|
|
|
// Do some default printout for function pointers
|
|
if (clang_type)
|
|
{
|
|
StreamString sstr;
|
|
clang_type_t elem_or_pointee_clang_type;
|
|
const Flags type_flags (ClangASTContext::GetTypeInfo (clang_type,
|
|
GetClangAST(),
|
|
&elem_or_pointee_clang_type));
|
|
|
|
if (ClangASTContext::IsFunctionPointerType (clang_type))
|
|
{
|
|
AddressType func_ptr_address_type = eAddressTypeInvalid;
|
|
addr_t func_ptr_address = GetPointerValue (&func_ptr_address_type);
|
|
if (func_ptr_address != 0 && func_ptr_address != LLDB_INVALID_ADDRESS)
|
|
{
|
|
switch (func_ptr_address_type)
|
|
{
|
|
case eAddressTypeInvalid:
|
|
case eAddressTypeFile:
|
|
break;
|
|
|
|
case eAddressTypeLoad:
|
|
{
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
|
|
Address so_addr;
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (target && target->GetSectionLoadList().IsEmpty() == false)
|
|
{
|
|
if (target->GetSectionLoadList().ResolveLoadAddress(func_ptr_address, so_addr))
|
|
{
|
|
so_addr.Dump (&sstr,
|
|
exe_ctx.GetBestExecutionContextScope(),
|
|
Address::DumpStyleResolvedDescription,
|
|
Address::DumpStyleSectionNameOffset);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eAddressTypeHost:
|
|
break;
|
|
}
|
|
}
|
|
if (sstr.GetSize() > 0)
|
|
{
|
|
destination.assign (1, '(');
|
|
destination.append (sstr.GetData(), sstr.GetSize());
|
|
destination.append (1, ')');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
m_is_getting_summary = false;
|
|
return !destination.empty();
|
|
}
|
|
|
|
const char *
|
|
ValueObject::GetSummaryAsCString ()
|
|
{
|
|
if (UpdateValueIfNeeded(true) && m_summary_str.empty())
|
|
{
|
|
GetSummaryAsCString(GetSummaryFormat().get(),
|
|
m_summary_str);
|
|
}
|
|
if (m_summary_str.empty())
|
|
return NULL;
|
|
return m_summary_str.c_str();
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsCStringContainer(bool check_pointer)
|
|
{
|
|
clang_type_t elem_or_pointee_clang_type;
|
|
const Flags type_flags (ClangASTContext::GetTypeInfo (GetClangType(),
|
|
GetClangAST(),
|
|
&elem_or_pointee_clang_type));
|
|
bool is_char_arr_ptr (type_flags.AnySet (ClangASTContext::eTypeIsArray | ClangASTContext::eTypeIsPointer) &&
|
|
ClangASTContext::IsCharType (elem_or_pointee_clang_type));
|
|
if (!is_char_arr_ptr)
|
|
return false;
|
|
if (!check_pointer)
|
|
return true;
|
|
if (type_flags.Test(ClangASTContext::eTypeIsArray))
|
|
return true;
|
|
addr_t cstr_address = LLDB_INVALID_ADDRESS;
|
|
AddressType cstr_address_type = eAddressTypeInvalid;
|
|
cstr_address = GetAddressOf (true, &cstr_address_type);
|
|
return (cstr_address != LLDB_INVALID_ADDRESS);
|
|
}
|
|
|
|
size_t
|
|
ValueObject::GetPointeeData (DataExtractor& data,
|
|
uint32_t item_idx,
|
|
uint32_t item_count)
|
|
{
|
|
if (!IsPointerType() && !IsArrayType())
|
|
return 0;
|
|
|
|
if (item_count == 0)
|
|
return 0;
|
|
|
|
uint32_t stride = 0;
|
|
|
|
ClangASTType type(GetClangAST(),
|
|
GetClangType());
|
|
|
|
const uint64_t item_type_size = (IsPointerType() ? ClangASTType::GetTypeByteSize(GetClangAST(), type.GetPointeeType()) :
|
|
ClangASTType::GetTypeByteSize(GetClangAST(), type.GetArrayElementType(stride)));
|
|
|
|
const uint64_t bytes = item_count * item_type_size;
|
|
|
|
const uint64_t offset = item_idx * item_type_size;
|
|
|
|
if (item_idx == 0 && item_count == 1) // simply a deref
|
|
{
|
|
if (IsPointerType())
|
|
{
|
|
Error error;
|
|
ValueObjectSP pointee_sp = Dereference(error);
|
|
if (error.Fail() || pointee_sp.get() == NULL)
|
|
return 0;
|
|
return pointee_sp->GetDataExtractor().Copy(data);
|
|
}
|
|
else
|
|
{
|
|
ValueObjectSP child_sp = GetChildAtIndex(0, true);
|
|
if (child_sp.get() == NULL)
|
|
return 0;
|
|
return child_sp->GetDataExtractor().Copy(data);
|
|
}
|
|
return true;
|
|
}
|
|
else /* (items > 1) */
|
|
{
|
|
Error error;
|
|
lldb_private::DataBufferHeap* heap_buf_ptr = NULL;
|
|
lldb::DataBufferSP data_sp(heap_buf_ptr = new lldb_private::DataBufferHeap());
|
|
|
|
AddressType addr_type;
|
|
lldb::addr_t addr = IsPointerType() ? GetPointerValue(&addr_type) : GetAddressOf(true, &addr_type);
|
|
|
|
switch (addr_type)
|
|
{
|
|
case eAddressTypeFile:
|
|
{
|
|
ModuleSP module_sp (GetModule());
|
|
if (module_sp)
|
|
{
|
|
Address so_addr;
|
|
module_sp->ResolveFileAddress(addr, so_addr);
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
Target* target = exe_ctx.GetTargetPtr();
|
|
if (target)
|
|
{
|
|
heap_buf_ptr->SetByteSize(bytes);
|
|
size_t bytes_read = target->ReadMemory(so_addr, false, heap_buf_ptr->GetBytes(), bytes, error);
|
|
if (error.Success())
|
|
{
|
|
data.SetData(data_sp);
|
|
return bytes_read;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case eAddressTypeLoad:
|
|
{
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
Process *process = exe_ctx.GetProcessPtr();
|
|
if (process)
|
|
{
|
|
heap_buf_ptr->SetByteSize(bytes);
|
|
size_t bytes_read = process->ReadMemory(addr + offset, heap_buf_ptr->GetBytes(), bytes, error);
|
|
if (error.Success())
|
|
{
|
|
data.SetData(data_sp);
|
|
return bytes_read;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case eAddressTypeHost:
|
|
{
|
|
heap_buf_ptr->CopyData((uint8_t*)(addr + offset), bytes);
|
|
data.SetData(data_sp);
|
|
return bytes;
|
|
}
|
|
break;
|
|
case eAddressTypeInvalid:
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
size_t
|
|
ValueObject::GetData (DataExtractor& data)
|
|
{
|
|
UpdateValueIfNeeded(false);
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
Error error = m_value.GetValueAsData(&exe_ctx, GetClangAST(), data, 0, GetModule().get());
|
|
if (error.Fail())
|
|
return 0;
|
|
data.SetAddressByteSize(m_data.GetAddressByteSize());
|
|
data.SetByteOrder(m_data.GetByteOrder());
|
|
return data.GetByteSize();
|
|
}
|
|
|
|
// will compute strlen(str), but without consuming more than
|
|
// maxlen bytes out of str (this serves the purpose of reading
|
|
// chunks of a string without having to worry about
|
|
// missing NULL terminators in the chunk)
|
|
// of course, if strlen(str) > maxlen, the function will return
|
|
// maxlen_value (which should be != maxlen, because that allows you
|
|
// to know whether strlen(str) == maxlen or strlen(str) > maxlen)
|
|
static uint32_t
|
|
strlen_or_inf (const char* str,
|
|
uint32_t maxlen,
|
|
uint32_t maxlen_value)
|
|
{
|
|
uint32_t len = 0;
|
|
if (str)
|
|
{
|
|
while(*str)
|
|
{
|
|
len++;str++;
|
|
if (len > maxlen)
|
|
return maxlen_value;
|
|
}
|
|
}
|
|
return len;
|
|
}
|
|
|
|
void
|
|
ValueObject::ReadPointedString (Stream& s,
|
|
Error& error,
|
|
uint32_t max_length,
|
|
bool honor_array,
|
|
Format item_format)
|
|
{
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
Target* target = exe_ctx.GetTargetPtr();
|
|
|
|
if (target && max_length == 0)
|
|
max_length = target->GetMaximumSizeOfStringSummary();
|
|
|
|
clang_type_t clang_type = GetClangType();
|
|
clang_type_t elem_or_pointee_clang_type;
|
|
const Flags type_flags (ClangASTContext::GetTypeInfo (clang_type,
|
|
GetClangAST(),
|
|
&elem_or_pointee_clang_type));
|
|
if (type_flags.AnySet (ClangASTContext::eTypeIsArray | ClangASTContext::eTypeIsPointer) &&
|
|
ClangASTContext::IsCharType (elem_or_pointee_clang_type))
|
|
{
|
|
if (target == NULL)
|
|
{
|
|
s << "<no target to read from>";
|
|
}
|
|
else
|
|
{
|
|
addr_t cstr_address = LLDB_INVALID_ADDRESS;
|
|
AddressType cstr_address_type = eAddressTypeInvalid;
|
|
|
|
size_t cstr_len = 0;
|
|
bool capped_data = false;
|
|
if (type_flags.Test (ClangASTContext::eTypeIsArray))
|
|
{
|
|
// We have an array
|
|
cstr_len = ClangASTContext::GetArraySize (clang_type);
|
|
if (cstr_len > max_length)
|
|
{
|
|
capped_data = true;
|
|
cstr_len = max_length;
|
|
}
|
|
cstr_address = GetAddressOf (true, &cstr_address_type);
|
|
}
|
|
else
|
|
{
|
|
// We have a pointer
|
|
cstr_address = GetPointerValue (&cstr_address_type);
|
|
}
|
|
if (cstr_address != 0 && cstr_address != LLDB_INVALID_ADDRESS)
|
|
{
|
|
Address cstr_so_addr (cstr_address);
|
|
DataExtractor data;
|
|
size_t bytes_read = 0;
|
|
if (cstr_len > 0 && honor_array)
|
|
{
|
|
// I am using GetPointeeData() here to abstract the fact that some ValueObjects are actually frozen pointers in the host
|
|
// but the pointed-to data lives in the debuggee, and GetPointeeData() automatically takes care of this
|
|
GetPointeeData(data, 0, cstr_len);
|
|
|
|
if ((bytes_read = data.GetByteSize()) > 0)
|
|
{
|
|
s << '"';
|
|
data.Dump (&s,
|
|
0, // Start offset in "data"
|
|
item_format,
|
|
1, // Size of item (1 byte for a char!)
|
|
bytes_read, // How many bytes to print?
|
|
UINT32_MAX, // num per line
|
|
LLDB_INVALID_ADDRESS,// base address
|
|
0, // bitfield bit size
|
|
0); // bitfield bit offset
|
|
if (capped_data)
|
|
s << "...";
|
|
s << '"';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
cstr_len = max_length;
|
|
const size_t k_max_buf_size = 64;
|
|
|
|
size_t offset = 0;
|
|
|
|
int cstr_len_displayed = -1;
|
|
bool capped_cstr = false;
|
|
// I am using GetPointeeData() here to abstract the fact that some ValueObjects are actually frozen pointers in the host
|
|
// but the pointed-to data lives in the debuggee, and GetPointeeData() automatically takes care of this
|
|
while ((bytes_read = GetPointeeData(data, offset, k_max_buf_size)) > 0)
|
|
{
|
|
const char *cstr = data.PeekCStr(0);
|
|
size_t len = strlen_or_inf (cstr, k_max_buf_size, k_max_buf_size+1);
|
|
if (len > k_max_buf_size)
|
|
len = k_max_buf_size;
|
|
if (cstr && cstr_len_displayed < 0)
|
|
s << '"';
|
|
|
|
if (cstr_len_displayed < 0)
|
|
cstr_len_displayed = len;
|
|
|
|
if (len == 0)
|
|
break;
|
|
cstr_len_displayed += len;
|
|
if (len > bytes_read)
|
|
len = bytes_read;
|
|
if (len > cstr_len)
|
|
len = cstr_len;
|
|
|
|
data.Dump (&s,
|
|
0, // Start offset in "data"
|
|
item_format,
|
|
1, // Size of item (1 byte for a char!)
|
|
len, // How many bytes to print?
|
|
UINT32_MAX, // num per line
|
|
LLDB_INVALID_ADDRESS,// base address
|
|
0, // bitfield bit size
|
|
0); // bitfield bit offset
|
|
|
|
if (len < k_max_buf_size)
|
|
break;
|
|
|
|
if (len >= cstr_len)
|
|
{
|
|
capped_cstr = true;
|
|
break;
|
|
}
|
|
|
|
cstr_len -= len;
|
|
offset += len;
|
|
}
|
|
|
|
if (cstr_len_displayed >= 0)
|
|
{
|
|
s << '"';
|
|
if (capped_cstr)
|
|
s << "...";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
error.SetErrorString("impossible to read a string from this object");
|
|
s << "<not a string object>";
|
|
}
|
|
}
|
|
|
|
const char *
|
|
ValueObject::GetObjectDescription ()
|
|
{
|
|
|
|
if (!UpdateValueIfNeeded (true))
|
|
return NULL;
|
|
|
|
if (!m_object_desc_str.empty())
|
|
return m_object_desc_str.c_str();
|
|
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
Process *process = exe_ctx.GetProcessPtr();
|
|
if (process == NULL)
|
|
return NULL;
|
|
|
|
StreamString s;
|
|
|
|
LanguageType language = GetObjectRuntimeLanguage();
|
|
LanguageRuntime *runtime = process->GetLanguageRuntime(language);
|
|
|
|
if (runtime == NULL)
|
|
{
|
|
// Aw, hell, if the things a pointer, or even just an integer, let's try ObjC anyway...
|
|
clang_type_t opaque_qual_type = GetClangType();
|
|
if (opaque_qual_type != NULL)
|
|
{
|
|
bool is_signed;
|
|
if (ClangASTContext::IsIntegerType (opaque_qual_type, is_signed)
|
|
|| ClangASTContext::IsPointerType (opaque_qual_type))
|
|
{
|
|
runtime = process->GetLanguageRuntime(eLanguageTypeObjC);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (runtime && runtime->GetObjectDescription(s, *this))
|
|
{
|
|
m_object_desc_str.append (s.GetData());
|
|
}
|
|
|
|
if (m_object_desc_str.empty())
|
|
return NULL;
|
|
else
|
|
return m_object_desc_str.c_str();
|
|
}
|
|
|
|
bool
|
|
ValueObject::GetValueAsCString (lldb::Format format,
|
|
std::string& destination)
|
|
{
|
|
if (ClangASTContext::IsAggregateType (GetClangType()) == false &&
|
|
UpdateValueIfNeeded(false))
|
|
{
|
|
const Value::ContextType context_type = m_value.GetContextType();
|
|
|
|
switch (context_type)
|
|
{
|
|
case Value::eContextTypeClangType:
|
|
case Value::eContextTypeLLDBType:
|
|
case Value::eContextTypeVariable:
|
|
{
|
|
clang_type_t clang_type = GetClangType ();
|
|
if (clang_type)
|
|
{
|
|
StreamString sstr;
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
ClangASTType::DumpTypeValue (GetClangAST(), // The clang AST
|
|
clang_type, // The clang type to display
|
|
&sstr,
|
|
format, // Format to display this type with
|
|
m_data, // Data to extract from
|
|
0, // Byte offset into "m_data"
|
|
GetByteSize(), // Byte size of item in "m_data"
|
|
GetBitfieldBitSize(), // Bitfield bit size
|
|
GetBitfieldBitOffset(), // Bitfield bit offset
|
|
exe_ctx.GetBestExecutionContextScope());
|
|
// Don't set the m_error to anything here otherwise
|
|
// we won't be able to re-format as anything else. The
|
|
// code for ClangASTType::DumpTypeValue() should always
|
|
// return something, even if that something contains
|
|
// an error messsage. "m_error" is used to detect errors
|
|
// when reading the valid object, not for formatting errors.
|
|
if (sstr.GetString().empty())
|
|
destination.clear();
|
|
else
|
|
destination.swap(sstr.GetString());
|
|
}
|
|
}
|
|
break;
|
|
|
|
case Value::eContextTypeRegisterInfo:
|
|
{
|
|
const RegisterInfo *reg_info = m_value.GetRegisterInfo();
|
|
if (reg_info)
|
|
{
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
|
|
StreamString reg_sstr;
|
|
m_data.Dump (®_sstr,
|
|
0,
|
|
format,
|
|
reg_info->byte_size,
|
|
1,
|
|
UINT32_MAX,
|
|
LLDB_INVALID_ADDRESS,
|
|
0,
|
|
0,
|
|
exe_ctx.GetBestExecutionContextScope());
|
|
destination.swap(reg_sstr.GetString());
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
return !destination.empty();
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
const char *
|
|
ValueObject::GetValueAsCString ()
|
|
{
|
|
if (UpdateValueIfNeeded(true) && m_value_str.empty())
|
|
{
|
|
lldb::Format my_format = GetFormat();
|
|
if (m_format == lldb::eFormatDefault)
|
|
{
|
|
if (m_type_format_sp)
|
|
my_format = m_type_format_sp->GetFormat();
|
|
else
|
|
{
|
|
if (m_is_bitfield_for_scalar)
|
|
my_format = eFormatUnsigned;
|
|
else
|
|
{
|
|
if (m_value.GetContextType() == Value::eContextTypeRegisterInfo)
|
|
{
|
|
const RegisterInfo *reg_info = m_value.GetRegisterInfo();
|
|
if (reg_info)
|
|
my_format = reg_info->format;
|
|
}
|
|
else
|
|
{
|
|
clang_type_t clang_type = GetClangType ();
|
|
my_format = ClangASTType::GetFormat(clang_type);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
GetValueAsCString(my_format, m_value_str);
|
|
}
|
|
if (m_value_str.empty())
|
|
return NULL;
|
|
return m_value_str.c_str();
|
|
}
|
|
|
|
// if > 8bytes, 0 is returned. this method should mostly be used
|
|
// to read address values out of pointers
|
|
uint64_t
|
|
ValueObject::GetValueAsUnsigned (uint64_t fail_value)
|
|
{
|
|
// If our byte size is zero this is an aggregate type that has children
|
|
if (ClangASTContext::IsAggregateType (GetClangType()) == false)
|
|
{
|
|
Scalar scalar;
|
|
if (ResolveValue (scalar))
|
|
return scalar.GetRawBits64(fail_value);
|
|
}
|
|
return fail_value;
|
|
}
|
|
|
|
bool
|
|
ValueObject::GetPrintableRepresentation(Stream& s,
|
|
ValueObjectRepresentationStyle val_obj_display,
|
|
Format custom_format)
|
|
{
|
|
|
|
if (custom_format != eFormatInvalid)
|
|
SetFormat(custom_format);
|
|
|
|
const char * return_value;
|
|
std::string alloc_mem;
|
|
|
|
switch(val_obj_display)
|
|
{
|
|
case eDisplayValue:
|
|
return_value = GetValueAsCString();
|
|
break;
|
|
|
|
case eDisplaySummary:
|
|
return_value = GetSummaryAsCString();
|
|
break;
|
|
|
|
case eDisplayLanguageSpecific:
|
|
return_value = GetObjectDescription();
|
|
break;
|
|
|
|
case eDisplayLocation:
|
|
return_value = GetLocationAsCString();
|
|
break;
|
|
|
|
case eDisplayChildrenCount:
|
|
{
|
|
alloc_mem.resize(512);
|
|
return_value = &alloc_mem[0];
|
|
int count = GetNumChildren();
|
|
snprintf((char*)return_value, 512, "%d", count);
|
|
}
|
|
break;
|
|
|
|
case eDisplayType:
|
|
return_value = GetTypeName().AsCString();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!return_value)
|
|
{
|
|
if (val_obj_display == eDisplayValue)
|
|
return_value = GetSummaryAsCString();
|
|
else if (val_obj_display == eDisplaySummary)
|
|
{
|
|
if (ClangASTContext::IsAggregateType (GetClangType()) == true)
|
|
{
|
|
// this thing has no value, and it seems to have no summary
|
|
// some combination of unitialized data and other factors can also
|
|
// raise this condition, so let's print a nice generic description
|
|
{
|
|
alloc_mem.resize(684);
|
|
return_value = &alloc_mem[0];
|
|
snprintf((char*)return_value, 684, "%s @ %s", GetTypeName().AsCString(), GetLocationAsCString());
|
|
}
|
|
}
|
|
else
|
|
return_value = GetValueAsCString();
|
|
}
|
|
}
|
|
|
|
if (return_value)
|
|
s.PutCString(return_value);
|
|
else
|
|
{
|
|
if (m_error.Fail())
|
|
s.Printf("<%s>", m_error.AsCString());
|
|
else if (val_obj_display == eDisplaySummary)
|
|
s.PutCString("<no summary available>");
|
|
else if (val_obj_display == eDisplayValue)
|
|
s.PutCString("<no value available>");
|
|
else if (val_obj_display == eDisplayLanguageSpecific)
|
|
s.PutCString("<not a valid Objective-C object>"); // edit this if we have other runtimes that support a description
|
|
else
|
|
s.PutCString("<no printable representation>");
|
|
}
|
|
|
|
// we should only return false here if we could not do *anything*
|
|
// even if we have an error message as output, that's a success
|
|
// from our callers' perspective, so return true
|
|
return true;
|
|
|
|
}
|
|
|
|
// if any more "special cases" are added to ValueObject::DumpPrintableRepresentation() please keep
|
|
// this call up to date by returning true for your new special cases. We will eventually move
|
|
// to checking this call result before trying to display special cases
|
|
bool
|
|
ValueObject::HasSpecialCasesForPrintableRepresentation(ValueObjectRepresentationStyle val_obj_display,
|
|
Format custom_format)
|
|
{
|
|
clang_type_t elem_or_pointee_type;
|
|
Flags flags(ClangASTContext::GetTypeInfo(GetClangType(), GetClangAST(), &elem_or_pointee_type));
|
|
|
|
if (flags.AnySet(ClangASTContext::eTypeIsArray | ClangASTContext::eTypeIsPointer)
|
|
&& val_obj_display == ValueObject::eDisplayValue)
|
|
{
|
|
if (IsCStringContainer(true) &&
|
|
(custom_format == eFormatCString ||
|
|
custom_format == eFormatCharArray ||
|
|
custom_format == eFormatChar ||
|
|
custom_format == eFormatVectorOfChar))
|
|
return true;
|
|
|
|
if (flags.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
if ((custom_format == eFormatBytes) ||
|
|
(custom_format == eFormatBytesWithASCII))
|
|
return true;
|
|
|
|
if ((custom_format == eFormatVectorOfChar) ||
|
|
(custom_format == eFormatVectorOfFloat32) ||
|
|
(custom_format == eFormatVectorOfFloat64) ||
|
|
(custom_format == eFormatVectorOfSInt16) ||
|
|
(custom_format == eFormatVectorOfSInt32) ||
|
|
(custom_format == eFormatVectorOfSInt64) ||
|
|
(custom_format == eFormatVectorOfSInt8) ||
|
|
(custom_format == eFormatVectorOfUInt128) ||
|
|
(custom_format == eFormatVectorOfUInt16) ||
|
|
(custom_format == eFormatVectorOfUInt32) ||
|
|
(custom_format == eFormatVectorOfUInt64) ||
|
|
(custom_format == eFormatVectorOfUInt8))
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
ValueObject::DumpPrintableRepresentation(Stream& s,
|
|
ValueObjectRepresentationStyle val_obj_display,
|
|
Format custom_format,
|
|
bool only_special)
|
|
{
|
|
|
|
clang_type_t elem_or_pointee_type;
|
|
Flags flags(ClangASTContext::GetTypeInfo(GetClangType(), GetClangAST(), &elem_or_pointee_type));
|
|
|
|
if (flags.AnySet(ClangASTContext::eTypeIsArray | ClangASTContext::eTypeIsPointer)
|
|
&& val_obj_display == ValueObject::eDisplayValue)
|
|
{
|
|
// when being asked to get a printable display an array or pointer type directly,
|
|
// try to "do the right thing"
|
|
|
|
if (IsCStringContainer(true) &&
|
|
(custom_format == eFormatCString ||
|
|
custom_format == eFormatCharArray ||
|
|
custom_format == eFormatChar ||
|
|
custom_format == eFormatVectorOfChar)) // print char[] & char* directly
|
|
{
|
|
Error error;
|
|
ReadPointedString(s,
|
|
error,
|
|
0,
|
|
(custom_format == eFormatVectorOfChar) ||
|
|
(custom_format == eFormatCharArray));
|
|
return !error.Fail();
|
|
}
|
|
|
|
if (custom_format == eFormatEnum)
|
|
return false;
|
|
|
|
// this only works for arrays, because I have no way to know when
|
|
// the pointed memory ends, and no special \0 end of data marker
|
|
if (flags.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
if ((custom_format == eFormatBytes) ||
|
|
(custom_format == eFormatBytesWithASCII))
|
|
{
|
|
uint32_t count = GetNumChildren();
|
|
|
|
s << '[';
|
|
for (uint32_t low = 0; low < count; low++)
|
|
{
|
|
|
|
if (low)
|
|
s << ',';
|
|
|
|
ValueObjectSP child = GetChildAtIndex(low,true);
|
|
if (!child.get())
|
|
{
|
|
s << "<invalid child>";
|
|
continue;
|
|
}
|
|
child->DumpPrintableRepresentation(s, ValueObject::eDisplayValue, custom_format);
|
|
}
|
|
|
|
s << ']';
|
|
|
|
return true;
|
|
}
|
|
|
|
if ((custom_format == eFormatVectorOfChar) ||
|
|
(custom_format == eFormatVectorOfFloat32) ||
|
|
(custom_format == eFormatVectorOfFloat64) ||
|
|
(custom_format == eFormatVectorOfSInt16) ||
|
|
(custom_format == eFormatVectorOfSInt32) ||
|
|
(custom_format == eFormatVectorOfSInt64) ||
|
|
(custom_format == eFormatVectorOfSInt8) ||
|
|
(custom_format == eFormatVectorOfUInt128) ||
|
|
(custom_format == eFormatVectorOfUInt16) ||
|
|
(custom_format == eFormatVectorOfUInt32) ||
|
|
(custom_format == eFormatVectorOfUInt64) ||
|
|
(custom_format == eFormatVectorOfUInt8)) // arrays of bytes, bytes with ASCII or any vector format should be printed directly
|
|
{
|
|
uint32_t count = GetNumChildren();
|
|
|
|
Format format = FormatManager::GetSingleItemFormat(custom_format);
|
|
|
|
s << '[';
|
|
for (uint32_t low = 0; low < count; low++)
|
|
{
|
|
|
|
if (low)
|
|
s << ',';
|
|
|
|
ValueObjectSP child = GetChildAtIndex(low,true);
|
|
if (!child.get())
|
|
{
|
|
s << "<invalid child>";
|
|
continue;
|
|
}
|
|
child->DumpPrintableRepresentation(s, ValueObject::eDisplayValue, format);
|
|
}
|
|
|
|
s << ']';
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if ((custom_format == eFormatBoolean) ||
|
|
(custom_format == eFormatBinary) ||
|
|
(custom_format == eFormatChar) ||
|
|
(custom_format == eFormatCharPrintable) ||
|
|
(custom_format == eFormatComplexFloat) ||
|
|
(custom_format == eFormatDecimal) ||
|
|
(custom_format == eFormatHex) ||
|
|
(custom_format == eFormatFloat) ||
|
|
(custom_format == eFormatOctal) ||
|
|
(custom_format == eFormatOSType) ||
|
|
(custom_format == eFormatUnicode16) ||
|
|
(custom_format == eFormatUnicode32) ||
|
|
(custom_format == eFormatUnsigned) ||
|
|
(custom_format == eFormatPointer) ||
|
|
(custom_format == eFormatComplexInteger) ||
|
|
(custom_format == eFormatComplex) ||
|
|
(custom_format == eFormatDefault)) // use the [] operator
|
|
return false;
|
|
}
|
|
|
|
if (only_special)
|
|
return false;
|
|
|
|
bool var_success = GetPrintableRepresentation(s, val_obj_display, custom_format);
|
|
if (custom_format != eFormatInvalid)
|
|
SetFormat(eFormatDefault);
|
|
return var_success;
|
|
}
|
|
|
|
addr_t
|
|
ValueObject::GetAddressOf (bool scalar_is_load_address, AddressType *address_type)
|
|
{
|
|
if (!UpdateValueIfNeeded(false))
|
|
return LLDB_INVALID_ADDRESS;
|
|
|
|
switch (m_value.GetValueType())
|
|
{
|
|
case Value::eValueTypeScalar:
|
|
if (scalar_is_load_address)
|
|
{
|
|
if(address_type)
|
|
*address_type = eAddressTypeLoad;
|
|
return m_value.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
|
|
}
|
|
break;
|
|
|
|
case Value::eValueTypeLoadAddress:
|
|
case Value::eValueTypeFileAddress:
|
|
case Value::eValueTypeHostAddress:
|
|
{
|
|
if(address_type)
|
|
*address_type = m_value.GetValueAddressType ();
|
|
return m_value.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
|
|
}
|
|
break;
|
|
}
|
|
if (address_type)
|
|
*address_type = eAddressTypeInvalid;
|
|
return LLDB_INVALID_ADDRESS;
|
|
}
|
|
|
|
addr_t
|
|
ValueObject::GetPointerValue (AddressType *address_type)
|
|
{
|
|
addr_t address = LLDB_INVALID_ADDRESS;
|
|
if(address_type)
|
|
*address_type = eAddressTypeInvalid;
|
|
|
|
if (!UpdateValueIfNeeded(false))
|
|
return address;
|
|
|
|
switch (m_value.GetValueType())
|
|
{
|
|
case Value::eValueTypeScalar:
|
|
address = m_value.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
|
|
break;
|
|
|
|
case Value::eValueTypeHostAddress:
|
|
case Value::eValueTypeLoadAddress:
|
|
case Value::eValueTypeFileAddress:
|
|
{
|
|
uint32_t data_offset = 0;
|
|
address = m_data.GetPointer(&data_offset);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (address_type)
|
|
*address_type = GetAddressTypeOfChildren();
|
|
|
|
return address;
|
|
}
|
|
|
|
bool
|
|
ValueObject::SetValueFromCString (const char *value_str)
|
|
{
|
|
// Make sure our value is up to date first so that our location and location
|
|
// type is valid.
|
|
if (!UpdateValueIfNeeded(false))
|
|
return false;
|
|
|
|
uint32_t count = 0;
|
|
Encoding encoding = ClangASTType::GetEncoding (GetClangType(), count);
|
|
|
|
const size_t byte_size = GetByteSize();
|
|
|
|
Value::ValueType value_type = m_value.GetValueType();
|
|
|
|
if (value_type == Value::eValueTypeScalar)
|
|
{
|
|
// If the value is already a scalar, then let the scalar change itself:
|
|
m_value.GetScalar().SetValueFromCString (value_str, encoding, byte_size);
|
|
}
|
|
else if (byte_size <= Scalar::GetMaxByteSize())
|
|
{
|
|
// If the value fits in a scalar, then make a new scalar and again let the
|
|
// scalar code do the conversion, then figure out where to put the new value.
|
|
Scalar new_scalar;
|
|
Error error;
|
|
error = new_scalar.SetValueFromCString (value_str, encoding, byte_size);
|
|
if (error.Success())
|
|
{
|
|
switch (value_type)
|
|
{
|
|
case Value::eValueTypeLoadAddress:
|
|
{
|
|
// If it is a load address, then the scalar value is the storage location
|
|
// of the data, and we have to shove this value down to that load location.
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
Process *process = exe_ctx.GetProcessPtr();
|
|
if (process)
|
|
{
|
|
addr_t target_addr = m_value.GetScalar().GetRawBits64(LLDB_INVALID_ADDRESS);
|
|
size_t bytes_written = process->WriteScalarToMemory (target_addr,
|
|
new_scalar,
|
|
byte_size,
|
|
error);
|
|
if (!error.Success() || bytes_written != byte_size)
|
|
return false;
|
|
}
|
|
}
|
|
break;
|
|
case Value::eValueTypeHostAddress:
|
|
{
|
|
// If it is a host address, then we stuff the scalar as a DataBuffer into the Value's data.
|
|
DataExtractor new_data;
|
|
new_data.SetByteOrder (m_data.GetByteOrder());
|
|
|
|
DataBufferSP buffer_sp (new DataBufferHeap(byte_size, 0));
|
|
m_data.SetData(buffer_sp, 0);
|
|
bool success = new_scalar.GetData(new_data);
|
|
if (success)
|
|
{
|
|
new_data.CopyByteOrderedData (0,
|
|
byte_size,
|
|
const_cast<uint8_t *>(m_data.GetDataStart()),
|
|
byte_size,
|
|
m_data.GetByteOrder());
|
|
}
|
|
m_value.GetScalar() = (uintptr_t)m_data.GetDataStart();
|
|
|
|
}
|
|
break;
|
|
case Value::eValueTypeFileAddress:
|
|
case Value::eValueTypeScalar:
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// We don't support setting things bigger than a scalar at present.
|
|
return false;
|
|
}
|
|
|
|
// If we have reached this point, then we have successfully changed the value.
|
|
SetNeedsUpdate();
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
ValueObject::GetDeclaration (Declaration &decl)
|
|
{
|
|
decl.Clear();
|
|
return false;
|
|
}
|
|
|
|
LanguageType
|
|
ValueObject::GetObjectRuntimeLanguage ()
|
|
{
|
|
return ClangASTType::GetMinimumLanguage (GetClangAST(),
|
|
GetClangType());
|
|
}
|
|
|
|
void
|
|
ValueObject::AddSyntheticChild (const ConstString &key, ValueObject *valobj)
|
|
{
|
|
m_synthetic_children[key] = valobj;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticChild (const ConstString &key) const
|
|
{
|
|
ValueObjectSP synthetic_child_sp;
|
|
std::map<ConstString, ValueObject *>::const_iterator pos = m_synthetic_children.find (key);
|
|
if (pos != m_synthetic_children.end())
|
|
synthetic_child_sp = pos->second->GetSP();
|
|
return synthetic_child_sp;
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsPointerType ()
|
|
{
|
|
return ClangASTContext::IsPointerType (GetClangType());
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsArrayType ()
|
|
{
|
|
return ClangASTContext::IsArrayType (GetClangType());
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsScalarType ()
|
|
{
|
|
return ClangASTContext::IsScalarType (GetClangType());
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsIntegerType (bool &is_signed)
|
|
{
|
|
return ClangASTContext::IsIntegerType (GetClangType(), is_signed);
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsPointerOrReferenceType ()
|
|
{
|
|
return ClangASTContext::IsPointerOrReferenceType (GetClangType());
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsPossibleCPlusPlusDynamicType ()
|
|
{
|
|
return ClangASTContext::IsPossibleCPlusPlusDynamicType (GetClangAST (), GetClangType());
|
|
}
|
|
|
|
bool
|
|
ValueObject::IsPossibleDynamicType ()
|
|
{
|
|
return ClangASTContext::IsPossibleDynamicType (GetClangAST (), GetClangType());
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticArrayMember (int32_t index, bool can_create)
|
|
{
|
|
if (IsArrayType())
|
|
return GetSyntheticArrayMemberFromArray(index, can_create);
|
|
|
|
if (IsPointerType())
|
|
return GetSyntheticArrayMemberFromPointer(index, can_create);
|
|
|
|
return ValueObjectSP();
|
|
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticArrayMemberFromPointer (int32_t index, bool can_create)
|
|
{
|
|
ValueObjectSP synthetic_child_sp;
|
|
if (IsPointerType ())
|
|
{
|
|
char index_str[64];
|
|
snprintf(index_str, sizeof(index_str), "[%i]", index);
|
|
ConstString index_const_str(index_str);
|
|
// Check if we have already created a synthetic array member in this
|
|
// valid object. If we have we will re-use it.
|
|
synthetic_child_sp = GetSyntheticChild (index_const_str);
|
|
if (!synthetic_child_sp)
|
|
{
|
|
ValueObject *synthetic_child;
|
|
// We haven't made a synthetic array member for INDEX yet, so
|
|
// lets make one and cache it for any future reference.
|
|
synthetic_child = CreateChildAtIndex(0, true, index);
|
|
|
|
// Cache the value if we got one back...
|
|
if (synthetic_child)
|
|
{
|
|
AddSyntheticChild(index_const_str, synthetic_child);
|
|
synthetic_child_sp = synthetic_child->GetSP();
|
|
synthetic_child_sp->SetName(ConstString(index_str));
|
|
synthetic_child_sp->m_is_array_item_for_pointer = true;
|
|
}
|
|
}
|
|
}
|
|
return synthetic_child_sp;
|
|
}
|
|
|
|
// This allows you to create an array member using and index
|
|
// that doesn't not fall in the normal bounds of the array.
|
|
// Many times structure can be defined as:
|
|
// struct Collection
|
|
// {
|
|
// uint32_t item_count;
|
|
// Item item_array[0];
|
|
// };
|
|
// The size of the "item_array" is 1, but many times in practice
|
|
// there are more items in "item_array".
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticArrayMemberFromArray (int32_t index, bool can_create)
|
|
{
|
|
ValueObjectSP synthetic_child_sp;
|
|
if (IsArrayType ())
|
|
{
|
|
char index_str[64];
|
|
snprintf(index_str, sizeof(index_str), "[%i]", index);
|
|
ConstString index_const_str(index_str);
|
|
// Check if we have already created a synthetic array member in this
|
|
// valid object. If we have we will re-use it.
|
|
synthetic_child_sp = GetSyntheticChild (index_const_str);
|
|
if (!synthetic_child_sp)
|
|
{
|
|
ValueObject *synthetic_child;
|
|
// We haven't made a synthetic array member for INDEX yet, so
|
|
// lets make one and cache it for any future reference.
|
|
synthetic_child = CreateChildAtIndex(0, true, index);
|
|
|
|
// Cache the value if we got one back...
|
|
if (synthetic_child)
|
|
{
|
|
AddSyntheticChild(index_const_str, synthetic_child);
|
|
synthetic_child_sp = synthetic_child->GetSP();
|
|
synthetic_child_sp->SetName(ConstString(index_str));
|
|
synthetic_child_sp->m_is_array_item_for_pointer = true;
|
|
}
|
|
}
|
|
}
|
|
return synthetic_child_sp;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticBitFieldChild (uint32_t from, uint32_t to, bool can_create)
|
|
{
|
|
ValueObjectSP synthetic_child_sp;
|
|
if (IsScalarType ())
|
|
{
|
|
char index_str[64];
|
|
snprintf(index_str, sizeof(index_str), "[%i-%i]", from, to);
|
|
ConstString index_const_str(index_str);
|
|
// Check if we have already created a synthetic array member in this
|
|
// valid object. If we have we will re-use it.
|
|
synthetic_child_sp = GetSyntheticChild (index_const_str);
|
|
if (!synthetic_child_sp)
|
|
{
|
|
ValueObjectChild *synthetic_child;
|
|
// We haven't made a synthetic array member for INDEX yet, so
|
|
// lets make one and cache it for any future reference.
|
|
synthetic_child = new ValueObjectChild(*this,
|
|
GetClangAST(),
|
|
GetClangType(),
|
|
index_const_str,
|
|
GetByteSize(),
|
|
0,
|
|
to-from+1,
|
|
from,
|
|
false,
|
|
false,
|
|
eAddressTypeInvalid);
|
|
|
|
// Cache the value if we got one back...
|
|
if (synthetic_child)
|
|
{
|
|
AddSyntheticChild(index_const_str, synthetic_child);
|
|
synthetic_child_sp = synthetic_child->GetSP();
|
|
synthetic_child_sp->SetName(ConstString(index_str));
|
|
synthetic_child_sp->m_is_bitfield_for_scalar = true;
|
|
}
|
|
}
|
|
}
|
|
return synthetic_child_sp;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticArrayRangeChild (uint32_t from, uint32_t to, bool can_create)
|
|
{
|
|
ValueObjectSP synthetic_child_sp;
|
|
if (IsArrayType () || IsPointerType ())
|
|
{
|
|
char index_str[64];
|
|
snprintf(index_str, sizeof(index_str), "[%i-%i]", from, to);
|
|
ConstString index_const_str(index_str);
|
|
// Check if we have already created a synthetic array member in this
|
|
// valid object. If we have we will re-use it.
|
|
synthetic_child_sp = GetSyntheticChild (index_const_str);
|
|
if (!synthetic_child_sp)
|
|
{
|
|
ValueObjectSynthetic *synthetic_child;
|
|
|
|
// We haven't made a synthetic array member for INDEX yet, so
|
|
// lets make one and cache it for any future reference.
|
|
SyntheticArrayView *view = new SyntheticArrayView(SyntheticChildren::Flags());
|
|
view->AddRange(from,to);
|
|
SyntheticChildrenSP view_sp(view);
|
|
synthetic_child = new ValueObjectSynthetic(*this, view_sp);
|
|
|
|
// Cache the value if we got one back...
|
|
if (synthetic_child)
|
|
{
|
|
AddSyntheticChild(index_const_str, synthetic_child);
|
|
synthetic_child_sp = synthetic_child->GetSP();
|
|
synthetic_child_sp->SetName(ConstString(index_str));
|
|
synthetic_child_sp->m_is_bitfield_for_scalar = true;
|
|
}
|
|
}
|
|
}
|
|
return synthetic_child_sp;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticChildAtOffset(uint32_t offset, const ClangASTType& type, bool can_create)
|
|
{
|
|
|
|
ValueObjectSP synthetic_child_sp;
|
|
|
|
char name_str[64];
|
|
snprintf(name_str, sizeof(name_str), "@%i", offset);
|
|
ConstString name_const_str(name_str);
|
|
|
|
// Check if we have already created a synthetic array member in this
|
|
// valid object. If we have we will re-use it.
|
|
synthetic_child_sp = GetSyntheticChild (name_const_str);
|
|
|
|
if (synthetic_child_sp.get())
|
|
return synthetic_child_sp;
|
|
|
|
if (!can_create)
|
|
return ValueObjectSP();
|
|
|
|
ValueObjectChild *synthetic_child = new ValueObjectChild(*this,
|
|
type.GetASTContext(),
|
|
type.GetOpaqueQualType(),
|
|
name_const_str,
|
|
type.GetTypeByteSize(),
|
|
offset,
|
|
0,
|
|
0,
|
|
false,
|
|
false,
|
|
eAddressTypeInvalid);
|
|
if (synthetic_child)
|
|
{
|
|
AddSyntheticChild(name_const_str, synthetic_child);
|
|
synthetic_child_sp = synthetic_child->GetSP();
|
|
synthetic_child_sp->SetName(name_const_str);
|
|
synthetic_child_sp->m_is_child_at_offset = true;
|
|
}
|
|
return synthetic_child_sp;
|
|
}
|
|
|
|
// your expression path needs to have a leading . or ->
|
|
// (unless it somehow "looks like" an array, in which case it has
|
|
// a leading [ symbol). while the [ is meaningful and should be shown
|
|
// to the user, . and -> are just parser design, but by no means
|
|
// added information for the user.. strip them off
|
|
static const char*
|
|
SkipLeadingExpressionPathSeparators(const char* expression)
|
|
{
|
|
if (!expression || !expression[0])
|
|
return expression;
|
|
if (expression[0] == '.')
|
|
return expression+1;
|
|
if (expression[0] == '-' && expression[1] == '>')
|
|
return expression+2;
|
|
return expression;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticExpressionPathChild(const char* expression, bool can_create)
|
|
{
|
|
ValueObjectSP synthetic_child_sp;
|
|
ConstString name_const_string(expression);
|
|
// Check if we have already created a synthetic array member in this
|
|
// valid object. If we have we will re-use it.
|
|
synthetic_child_sp = GetSyntheticChild (name_const_string);
|
|
if (!synthetic_child_sp)
|
|
{
|
|
// We haven't made a synthetic array member for expression yet, so
|
|
// lets make one and cache it for any future reference.
|
|
synthetic_child_sp = GetValueForExpressionPath(expression);
|
|
|
|
// Cache the value if we got one back...
|
|
if (synthetic_child_sp.get())
|
|
{
|
|
AddSyntheticChild(name_const_string, synthetic_child_sp.get());
|
|
synthetic_child_sp->SetName(ConstString(SkipLeadingExpressionPathSeparators(expression)));
|
|
synthetic_child_sp->m_is_expression_path_child = true;
|
|
}
|
|
}
|
|
return synthetic_child_sp;
|
|
}
|
|
|
|
void
|
|
ValueObject::CalculateSyntheticValue (SyntheticValueType use_synthetic)
|
|
{
|
|
if (use_synthetic == eNoSyntheticFilter)
|
|
return;
|
|
|
|
UpdateFormatsIfNeeded(m_last_format_mgr_dynamic);
|
|
|
|
if (m_synthetic_children_sp.get() == NULL)
|
|
return;
|
|
|
|
if (m_synthetic_value == NULL)
|
|
m_synthetic_value = new ValueObjectSynthetic(*this, m_synthetic_children_sp);
|
|
|
|
}
|
|
|
|
void
|
|
ValueObject::CalculateDynamicValue (DynamicValueType use_dynamic)
|
|
{
|
|
if (use_dynamic == eNoDynamicValues)
|
|
return;
|
|
|
|
if (!m_dynamic_value && !IsDynamic())
|
|
{
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
Process *process = exe_ctx.GetProcessPtr();
|
|
if (process)
|
|
{
|
|
bool worth_having_dynamic_value = false;
|
|
|
|
|
|
// FIXME: Process should have some kind of "map over Runtimes" so we don't have to
|
|
// hard code this everywhere.
|
|
LanguageType known_type = GetObjectRuntimeLanguage();
|
|
if (known_type != eLanguageTypeUnknown && known_type != eLanguageTypeC)
|
|
{
|
|
LanguageRuntime *runtime = process->GetLanguageRuntime (known_type);
|
|
if (runtime)
|
|
worth_having_dynamic_value = runtime->CouldHaveDynamicValue(*this);
|
|
}
|
|
else
|
|
{
|
|
LanguageRuntime *cpp_runtime = process->GetLanguageRuntime (eLanguageTypeC_plus_plus);
|
|
if (cpp_runtime)
|
|
worth_having_dynamic_value = cpp_runtime->CouldHaveDynamicValue(*this);
|
|
|
|
if (!worth_having_dynamic_value)
|
|
{
|
|
LanguageRuntime *objc_runtime = process->GetLanguageRuntime (eLanguageTypeObjC);
|
|
if (objc_runtime)
|
|
worth_having_dynamic_value = objc_runtime->CouldHaveDynamicValue(*this);
|
|
}
|
|
}
|
|
|
|
if (worth_having_dynamic_value)
|
|
m_dynamic_value = new ValueObjectDynamicValue (*this, use_dynamic);
|
|
}
|
|
}
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetDynamicValue (DynamicValueType use_dynamic)
|
|
{
|
|
if (use_dynamic == eNoDynamicValues)
|
|
return ValueObjectSP();
|
|
|
|
if (!IsDynamic() && m_dynamic_value == NULL)
|
|
{
|
|
CalculateDynamicValue(use_dynamic);
|
|
}
|
|
if (m_dynamic_value)
|
|
return m_dynamic_value->GetSP();
|
|
else
|
|
return ValueObjectSP();
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetStaticValue()
|
|
{
|
|
return GetSP();
|
|
}
|
|
|
|
// GetDynamicValue() returns a NULL SharedPointer if the object is not dynamic
|
|
// or we do not really want a dynamic VO. this method instead returns this object
|
|
// itself when making it synthetic has no meaning. this makes it much simpler
|
|
// to replace the SyntheticValue for the ValueObject
|
|
ValueObjectSP
|
|
ValueObject::GetSyntheticValue (SyntheticValueType use_synthetic)
|
|
{
|
|
if (use_synthetic == eNoSyntheticFilter)
|
|
return GetSP();
|
|
|
|
UpdateFormatsIfNeeded(m_last_format_mgr_dynamic);
|
|
|
|
if (m_synthetic_children_sp.get() == NULL)
|
|
return GetSP();
|
|
|
|
CalculateSyntheticValue(use_synthetic);
|
|
|
|
if (m_synthetic_value)
|
|
return m_synthetic_value->GetSP();
|
|
else
|
|
return GetSP();
|
|
}
|
|
|
|
bool
|
|
ValueObject::HasSyntheticValue()
|
|
{
|
|
UpdateFormatsIfNeeded(m_last_format_mgr_dynamic);
|
|
|
|
if (m_synthetic_children_sp.get() == NULL)
|
|
return false;
|
|
|
|
CalculateSyntheticValue(eUseSyntheticFilter);
|
|
|
|
if (m_synthetic_value)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
ValueObject::GetBaseClassPath (Stream &s)
|
|
{
|
|
if (IsBaseClass())
|
|
{
|
|
bool parent_had_base_class = GetParent() && GetParent()->GetBaseClassPath (s);
|
|
clang_type_t clang_type = GetClangType();
|
|
std::string cxx_class_name;
|
|
bool this_had_base_class = ClangASTContext::GetCXXClassName (clang_type, cxx_class_name);
|
|
if (this_had_base_class)
|
|
{
|
|
if (parent_had_base_class)
|
|
s.PutCString("::");
|
|
s.PutCString(cxx_class_name.c_str());
|
|
}
|
|
return parent_had_base_class || this_had_base_class;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
ValueObject *
|
|
ValueObject::GetNonBaseClassParent()
|
|
{
|
|
if (GetParent())
|
|
{
|
|
if (GetParent()->IsBaseClass())
|
|
return GetParent()->GetNonBaseClassParent();
|
|
else
|
|
return GetParent();
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
ValueObject::GetExpressionPath (Stream &s, bool qualify_cxx_base_classes, GetExpressionPathFormat epformat)
|
|
{
|
|
const bool is_deref_of_parent = IsDereferenceOfParent ();
|
|
|
|
if (is_deref_of_parent && epformat == eDereferencePointers)
|
|
{
|
|
// this is the original format of GetExpressionPath() producing code like *(a_ptr).memberName, which is entirely
|
|
// fine, until you put this into StackFrame::GetValueForVariableExpressionPath() which prefers to see a_ptr->memberName.
|
|
// the eHonorPointers mode is meant to produce strings in this latter format
|
|
s.PutCString("*(");
|
|
}
|
|
|
|
ValueObject* parent = GetParent();
|
|
|
|
if (parent)
|
|
parent->GetExpressionPath (s, qualify_cxx_base_classes, epformat);
|
|
|
|
// if we are a deref_of_parent just because we are synthetic array
|
|
// members made up to allow ptr[%d] syntax to work in variable
|
|
// printing, then add our name ([%d]) to the expression path
|
|
if (m_is_array_item_for_pointer && epformat == eHonorPointers)
|
|
s.PutCString(m_name.AsCString());
|
|
|
|
if (!IsBaseClass())
|
|
{
|
|
if (!is_deref_of_parent)
|
|
{
|
|
ValueObject *non_base_class_parent = GetNonBaseClassParent();
|
|
if (non_base_class_parent)
|
|
{
|
|
clang_type_t non_base_class_parent_clang_type = non_base_class_parent->GetClangType();
|
|
if (non_base_class_parent_clang_type)
|
|
{
|
|
const uint32_t non_base_class_parent_type_info = ClangASTContext::GetTypeInfo (non_base_class_parent_clang_type, NULL, NULL);
|
|
|
|
if (parent && parent->IsDereferenceOfParent() && epformat == eHonorPointers)
|
|
{
|
|
s.PutCString("->");
|
|
}
|
|
else
|
|
{
|
|
if (non_base_class_parent_type_info & ClangASTContext::eTypeIsPointer)
|
|
{
|
|
s.PutCString("->");
|
|
}
|
|
else if ((non_base_class_parent_type_info & ClangASTContext::eTypeHasChildren) &&
|
|
!(non_base_class_parent_type_info & ClangASTContext::eTypeIsArray))
|
|
{
|
|
s.PutChar('.');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const char *name = GetName().GetCString();
|
|
if (name)
|
|
{
|
|
if (qualify_cxx_base_classes)
|
|
{
|
|
if (GetBaseClassPath (s))
|
|
s.PutCString("::");
|
|
}
|
|
s.PutCString(name);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (is_deref_of_parent && epformat == eDereferencePointers)
|
|
{
|
|
s.PutChar(')');
|
|
}
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetValueForExpressionPath(const char* expression,
|
|
const char** first_unparsed,
|
|
ExpressionPathScanEndReason* reason_to_stop,
|
|
ExpressionPathEndResultType* final_value_type,
|
|
const GetValueForExpressionPathOptions& options,
|
|
ExpressionPathAftermath* final_task_on_target)
|
|
{
|
|
|
|
const char* dummy_first_unparsed;
|
|
ExpressionPathScanEndReason dummy_reason_to_stop;
|
|
ExpressionPathEndResultType dummy_final_value_type;
|
|
ExpressionPathAftermath dummy_final_task_on_target = ValueObject::eNothing;
|
|
|
|
ValueObjectSP ret_val = GetValueForExpressionPath_Impl(expression,
|
|
first_unparsed ? first_unparsed : &dummy_first_unparsed,
|
|
reason_to_stop ? reason_to_stop : &dummy_reason_to_stop,
|
|
final_value_type ? final_value_type : &dummy_final_value_type,
|
|
options,
|
|
final_task_on_target ? final_task_on_target : &dummy_final_task_on_target);
|
|
|
|
if (!final_task_on_target || *final_task_on_target == ValueObject::eNothing)
|
|
{
|
|
return ret_val;
|
|
}
|
|
if (ret_val.get() && *final_value_type == ePlain) // I can only deref and takeaddress of plain objects
|
|
{
|
|
if (*final_task_on_target == ValueObject::eDereference)
|
|
{
|
|
Error error;
|
|
ValueObjectSP final_value = ret_val->Dereference(error);
|
|
if (error.Fail() || !final_value.get())
|
|
{
|
|
*reason_to_stop = ValueObject::eDereferencingFailed;
|
|
*final_value_type = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else
|
|
{
|
|
*final_task_on_target = ValueObject::eNothing;
|
|
return final_value;
|
|
}
|
|
}
|
|
if (*final_task_on_target == ValueObject::eTakeAddress)
|
|
{
|
|
Error error;
|
|
ValueObjectSP final_value = ret_val->AddressOf(error);
|
|
if (error.Fail() || !final_value.get())
|
|
{
|
|
*reason_to_stop = ValueObject::eTakingAddressFailed;
|
|
*final_value_type = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else
|
|
{
|
|
*final_task_on_target = ValueObject::eNothing;
|
|
return final_value;
|
|
}
|
|
}
|
|
}
|
|
return ret_val; // final_task_on_target will still have its original value, so you know I did not do it
|
|
}
|
|
|
|
int
|
|
ValueObject::GetValuesForExpressionPath(const char* expression,
|
|
ValueObjectListSP& list,
|
|
const char** first_unparsed,
|
|
ExpressionPathScanEndReason* reason_to_stop,
|
|
ExpressionPathEndResultType* final_value_type,
|
|
const GetValueForExpressionPathOptions& options,
|
|
ExpressionPathAftermath* final_task_on_target)
|
|
{
|
|
const char* dummy_first_unparsed;
|
|
ExpressionPathScanEndReason dummy_reason_to_stop;
|
|
ExpressionPathEndResultType dummy_final_value_type;
|
|
ExpressionPathAftermath dummy_final_task_on_target = ValueObject::eNothing;
|
|
|
|
ValueObjectSP ret_val = GetValueForExpressionPath_Impl(expression,
|
|
first_unparsed ? first_unparsed : &dummy_first_unparsed,
|
|
reason_to_stop ? reason_to_stop : &dummy_reason_to_stop,
|
|
final_value_type ? final_value_type : &dummy_final_value_type,
|
|
options,
|
|
final_task_on_target ? final_task_on_target : &dummy_final_task_on_target);
|
|
|
|
if (!ret_val.get()) // if there are errors, I add nothing to the list
|
|
return 0;
|
|
|
|
if (*reason_to_stop != eArrayRangeOperatorMet)
|
|
{
|
|
// I need not expand a range, just post-process the final value and return
|
|
if (!final_task_on_target || *final_task_on_target == ValueObject::eNothing)
|
|
{
|
|
list->Append(ret_val);
|
|
return 1;
|
|
}
|
|
if (ret_val.get() && *final_value_type == ePlain) // I can only deref and takeaddress of plain objects
|
|
{
|
|
if (*final_task_on_target == ValueObject::eDereference)
|
|
{
|
|
Error error;
|
|
ValueObjectSP final_value = ret_val->Dereference(error);
|
|
if (error.Fail() || !final_value.get())
|
|
{
|
|
*reason_to_stop = ValueObject::eDereferencingFailed;
|
|
*final_value_type = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
*final_task_on_target = ValueObject::eNothing;
|
|
list->Append(final_value);
|
|
return 1;
|
|
}
|
|
}
|
|
if (*final_task_on_target == ValueObject::eTakeAddress)
|
|
{
|
|
Error error;
|
|
ValueObjectSP final_value = ret_val->AddressOf(error);
|
|
if (error.Fail() || !final_value.get())
|
|
{
|
|
*reason_to_stop = ValueObject::eTakingAddressFailed;
|
|
*final_value_type = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
*final_task_on_target = ValueObject::eNothing;
|
|
list->Append(final_value);
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return ExpandArraySliceExpression(first_unparsed ? *first_unparsed : dummy_first_unparsed,
|
|
first_unparsed ? first_unparsed : &dummy_first_unparsed,
|
|
ret_val,
|
|
list,
|
|
reason_to_stop ? reason_to_stop : &dummy_reason_to_stop,
|
|
final_value_type ? final_value_type : &dummy_final_value_type,
|
|
options,
|
|
final_task_on_target ? final_task_on_target : &dummy_final_task_on_target);
|
|
}
|
|
// in any non-covered case, just do the obviously right thing
|
|
list->Append(ret_val);
|
|
return 1;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::GetValueForExpressionPath_Impl(const char* expression_cstr,
|
|
const char** first_unparsed,
|
|
ExpressionPathScanEndReason* reason_to_stop,
|
|
ExpressionPathEndResultType* final_result,
|
|
const GetValueForExpressionPathOptions& options,
|
|
ExpressionPathAftermath* what_next)
|
|
{
|
|
ValueObjectSP root = GetSP();
|
|
|
|
if (!root.get())
|
|
return ValueObjectSP();
|
|
|
|
*first_unparsed = expression_cstr;
|
|
|
|
while (true)
|
|
{
|
|
|
|
const char* expression_cstr = *first_unparsed; // hide the top level expression_cstr
|
|
|
|
clang_type_t root_clang_type = root->GetClangType();
|
|
clang_type_t pointee_clang_type;
|
|
Flags root_clang_type_info,pointee_clang_type_info;
|
|
|
|
root_clang_type_info = Flags(ClangASTContext::GetTypeInfo(root_clang_type, GetClangAST(), &pointee_clang_type));
|
|
if (pointee_clang_type)
|
|
pointee_clang_type_info = Flags(ClangASTContext::GetTypeInfo(pointee_clang_type, GetClangAST(), NULL));
|
|
|
|
if (!expression_cstr || *expression_cstr == '\0')
|
|
{
|
|
*reason_to_stop = ValueObject::eEndOfString;
|
|
return root;
|
|
}
|
|
|
|
switch (*expression_cstr)
|
|
{
|
|
case '-':
|
|
{
|
|
if (options.m_check_dot_vs_arrow_syntax &&
|
|
root_clang_type_info.Test(ClangASTContext::eTypeIsPointer) ) // if you are trying to use -> on a non-pointer and I must catch the error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eArrowInsteadOfDot;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
if (root_clang_type_info.Test(ClangASTContext::eTypeIsObjC) && // if yo are trying to extract an ObjC IVar when this is forbidden
|
|
root_clang_type_info.Test(ClangASTContext::eTypeIsPointer) &&
|
|
options.m_no_fragile_ivar)
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eFragileIVarNotAllowed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
if (expression_cstr[1] != '>')
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
expression_cstr++; // skip the -
|
|
}
|
|
case '.': // or fallthrough from ->
|
|
{
|
|
if (options.m_check_dot_vs_arrow_syntax && *expression_cstr == '.' &&
|
|
root_clang_type_info.Test(ClangASTContext::eTypeIsPointer)) // if you are trying to use . on a pointer and I must catch the error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eDotInsteadOfArrow;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
expression_cstr++; // skip .
|
|
const char *next_separator = strpbrk(expression_cstr+1,"-.[");
|
|
ConstString child_name;
|
|
if (!next_separator) // if no other separator just expand this last layer
|
|
{
|
|
child_name.SetCString (expression_cstr);
|
|
ValueObjectSP child_valobj_sp = root->GetChildMemberWithName(child_name, true);
|
|
|
|
if (child_valobj_sp.get()) // we know we are done, so just return
|
|
{
|
|
*first_unparsed = '\0';
|
|
*reason_to_stop = ValueObject::eEndOfString;
|
|
*final_result = ValueObject::ePlain;
|
|
return child_valobj_sp;
|
|
}
|
|
else if (options.m_no_synthetic_children == false) // let's try with synthetic children
|
|
{
|
|
child_valobj_sp = root->GetSyntheticValue(eNoSyntheticFilter)->GetChildMemberWithName(child_name, true);
|
|
}
|
|
|
|
// if we are here and options.m_no_synthetic_children is true, child_valobj_sp is going to be a NULL SP,
|
|
// so we hit the "else" branch, and return an error
|
|
if(child_valobj_sp.get()) // if it worked, just return
|
|
{
|
|
*first_unparsed = '\0';
|
|
*reason_to_stop = ValueObject::eEndOfString;
|
|
*final_result = ValueObject::ePlain;
|
|
return child_valobj_sp;
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
else // other layers do expand
|
|
{
|
|
child_name.SetCStringWithLength(expression_cstr, next_separator - expression_cstr);
|
|
ValueObjectSP child_valobj_sp = root->GetChildMemberWithName(child_name, true);
|
|
if (child_valobj_sp.get()) // store the new root and move on
|
|
{
|
|
root = child_valobj_sp;
|
|
*first_unparsed = next_separator;
|
|
*final_result = ValueObject::ePlain;
|
|
continue;
|
|
}
|
|
else if (options.m_no_synthetic_children == false) // let's try with synthetic children
|
|
{
|
|
child_valobj_sp = root->GetSyntheticValue(eUseSyntheticFilter)->GetChildMemberWithName(child_name, true);
|
|
}
|
|
|
|
// if we are here and options.m_no_synthetic_children is true, child_valobj_sp is going to be a NULL SP,
|
|
// so we hit the "else" branch, and return an error
|
|
if(child_valobj_sp.get()) // if it worked, move on
|
|
{
|
|
root = child_valobj_sp;
|
|
*first_unparsed = next_separator;
|
|
*final_result = ValueObject::ePlain;
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case '[':
|
|
{
|
|
if (!root_clang_type_info.Test(ClangASTContext::eTypeIsArray) && !root_clang_type_info.Test(ClangASTContext::eTypeIsPointer)) // if this is not a T[] nor a T*
|
|
{
|
|
if (!root_clang_type_info.Test(ClangASTContext::eTypeIsScalar)) // if this is not even a scalar...
|
|
{
|
|
if (options.m_no_synthetic_children) // ...only chance left is synthetic
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eRangeOperatorInvalid;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
else if (!options.m_allow_bitfields_syntax) // if this is a scalar, check that we can expand bitfields
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eRangeOperatorNotAllowed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
if (*(expression_cstr+1) == ']') // if this is an unbounded range it only works for arrays
|
|
{
|
|
if (!root_clang_type_info.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eEmptyRangeNotAllowed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else // even if something follows, we cannot expand unbounded ranges, just let the caller do it
|
|
{
|
|
*first_unparsed = expression_cstr+2;
|
|
*reason_to_stop = ValueObject::eArrayRangeOperatorMet;
|
|
*final_result = ValueObject::eUnboundedRange;
|
|
return root;
|
|
}
|
|
}
|
|
const char *separator_position = ::strchr(expression_cstr+1,'-');
|
|
const char *close_bracket_position = ::strchr(expression_cstr+1,']');
|
|
if (!close_bracket_position) // if there is no ], this is a syntax error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
if (!separator_position || separator_position > close_bracket_position) // if no separator, this is either [] or [N]
|
|
{
|
|
char *end = NULL;
|
|
unsigned long index = ::strtoul (expression_cstr+1, &end, 0);
|
|
if (!end || end != close_bracket_position) // if something weird is in our way return an error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
if (end - expression_cstr == 1) // if this is [], only return a valid value for arrays
|
|
{
|
|
if (root_clang_type_info.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
*first_unparsed = expression_cstr+2;
|
|
*reason_to_stop = ValueObject::eArrayRangeOperatorMet;
|
|
*final_result = ValueObject::eUnboundedRange;
|
|
return root;
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eEmptyRangeNotAllowed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
// from here on we do have a valid index
|
|
if (root_clang_type_info.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
ValueObjectSP child_valobj_sp = root->GetChildAtIndex(index, true);
|
|
if (!child_valobj_sp)
|
|
child_valobj_sp = root->GetSyntheticArrayMemberFromArray(index, true);
|
|
if (!child_valobj_sp)
|
|
if (root->HasSyntheticValue() && root->GetSyntheticValue(eUseSyntheticFilter)->GetNumChildren() > index)
|
|
child_valobj_sp = root->GetSyntheticValue(eUseSyntheticFilter)->GetChildAtIndex(index, true);
|
|
if (child_valobj_sp)
|
|
{
|
|
root = child_valobj_sp;
|
|
*first_unparsed = end+1; // skip ]
|
|
*final_result = ValueObject::ePlain;
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
else if (root_clang_type_info.Test(ClangASTContext::eTypeIsPointer))
|
|
{
|
|
if (*what_next == ValueObject::eDereference && // if this is a ptr-to-scalar, I am accessing it by index and I would have deref'ed anyway, then do it now and use this as a bitfield
|
|
pointee_clang_type_info.Test(ClangASTContext::eTypeIsScalar))
|
|
{
|
|
Error error;
|
|
root = root->Dereference(error);
|
|
if (error.Fail() || !root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eDereferencingFailed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else
|
|
{
|
|
*what_next = eNothing;
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ClangASTType::GetMinimumLanguage(root->GetClangAST(),
|
|
root->GetClangType()) == eLanguageTypeObjC
|
|
&&
|
|
ClangASTContext::IsPointerType(ClangASTType::GetPointeeType(root->GetClangType())) == false
|
|
&&
|
|
root->HasSyntheticValue()
|
|
&&
|
|
options.m_no_synthetic_children == false)
|
|
{
|
|
root = root->GetSyntheticValue(eUseSyntheticFilter)->GetChildAtIndex(index, true);
|
|
}
|
|
else
|
|
root = root->GetSyntheticArrayMemberFromPointer(index, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = end+1; // skip ]
|
|
*final_result = ValueObject::ePlain;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
else if (ClangASTContext::IsScalarType(root_clang_type))
|
|
{
|
|
root = root->GetSyntheticBitFieldChild(index, index, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else // we do not know how to expand members of bitfields, so we just return and let the caller do any further processing
|
|
{
|
|
*first_unparsed = end+1; // skip ]
|
|
*reason_to_stop = ValueObject::eBitfieldRangeOperatorMet;
|
|
*final_result = ValueObject::eBitfield;
|
|
return root;
|
|
}
|
|
}
|
|
else if (root->HasSyntheticValue() && options.m_no_synthetic_children == false)
|
|
{
|
|
root = root->GetSyntheticValue(eUseSyntheticFilter)->GetChildAtIndex(index, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = end+1; // skip ]
|
|
*final_result = ValueObject::ePlain;
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
else // we have a low and a high index
|
|
{
|
|
char *end = NULL;
|
|
unsigned long index_lower = ::strtoul (expression_cstr+1, &end, 0);
|
|
if (!end || end != separator_position) // if something weird is in our way return an error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
unsigned long index_higher = ::strtoul (separator_position+1, &end, 0);
|
|
if (!end || end != close_bracket_position) // if something weird is in our way return an error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
if (index_lower > index_higher) // swap indices if required
|
|
{
|
|
unsigned long temp = index_lower;
|
|
index_lower = index_higher;
|
|
index_higher = temp;
|
|
}
|
|
if (root_clang_type_info.Test(ClangASTContext::eTypeIsScalar)) // expansion only works for scalars
|
|
{
|
|
root = root->GetSyntheticBitFieldChild(index_lower, index_higher, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = end+1; // skip ]
|
|
*reason_to_stop = ValueObject::eBitfieldRangeOperatorMet;
|
|
*final_result = ValueObject::eBitfield;
|
|
return root;
|
|
}
|
|
}
|
|
else if (root_clang_type_info.Test(ClangASTContext::eTypeIsPointer) && // if this is a ptr-to-scalar, I am accessing it by index and I would have deref'ed anyway, then do it now and use this as a bitfield
|
|
*what_next == ValueObject::eDereference &&
|
|
pointee_clang_type_info.Test(ClangASTContext::eTypeIsScalar))
|
|
{
|
|
Error error;
|
|
root = root->Dereference(error);
|
|
if (error.Fail() || !root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eDereferencingFailed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
}
|
|
else
|
|
{
|
|
*what_next = ValueObject::eNothing;
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eArrayRangeOperatorMet;
|
|
*final_result = ValueObject::eBoundedRange;
|
|
return root;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default: // some non-separator is in the way
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return ValueObjectSP();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
ValueObject::ExpandArraySliceExpression(const char* expression_cstr,
|
|
const char** first_unparsed,
|
|
ValueObjectSP root,
|
|
ValueObjectListSP& list,
|
|
ExpressionPathScanEndReason* reason_to_stop,
|
|
ExpressionPathEndResultType* final_result,
|
|
const GetValueForExpressionPathOptions& options,
|
|
ExpressionPathAftermath* what_next)
|
|
{
|
|
if (!root.get())
|
|
return 0;
|
|
|
|
*first_unparsed = expression_cstr;
|
|
|
|
while (true)
|
|
{
|
|
|
|
const char* expression_cstr = *first_unparsed; // hide the top level expression_cstr
|
|
|
|
clang_type_t root_clang_type = root->GetClangType();
|
|
clang_type_t pointee_clang_type;
|
|
Flags root_clang_type_info,pointee_clang_type_info;
|
|
|
|
root_clang_type_info = Flags(ClangASTContext::GetTypeInfo(root_clang_type, GetClangAST(), &pointee_clang_type));
|
|
if (pointee_clang_type)
|
|
pointee_clang_type_info = Flags(ClangASTContext::GetTypeInfo(pointee_clang_type, GetClangAST(), NULL));
|
|
|
|
if (!expression_cstr || *expression_cstr == '\0')
|
|
{
|
|
*reason_to_stop = ValueObject::eEndOfString;
|
|
list->Append(root);
|
|
return 1;
|
|
}
|
|
|
|
switch (*expression_cstr)
|
|
{
|
|
case '[':
|
|
{
|
|
if (!root_clang_type_info.Test(ClangASTContext::eTypeIsArray) && !root_clang_type_info.Test(ClangASTContext::eTypeIsPointer)) // if this is not a T[] nor a T*
|
|
{
|
|
if (!root_clang_type_info.Test(ClangASTContext::eTypeIsScalar)) // if this is not even a scalar, this syntax is just plain wrong!
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eRangeOperatorInvalid;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else if (!options.m_allow_bitfields_syntax) // if this is a scalar, check that we can expand bitfields
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eRangeOperatorNotAllowed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
}
|
|
if (*(expression_cstr+1) == ']') // if this is an unbounded range it only works for arrays
|
|
{
|
|
if (!root_clang_type_info.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eEmptyRangeNotAllowed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else // expand this into list
|
|
{
|
|
int max_index = root->GetNumChildren() - 1;
|
|
for (int index = 0; index < max_index; index++)
|
|
{
|
|
ValueObjectSP child =
|
|
root->GetChildAtIndex(index, true);
|
|
list->Append(child);
|
|
}
|
|
*first_unparsed = expression_cstr+2;
|
|
*reason_to_stop = ValueObject::eRangeOperatorExpanded;
|
|
*final_result = ValueObject::eValueObjectList;
|
|
return max_index; // tell me number of items I added to the VOList
|
|
}
|
|
}
|
|
const char *separator_position = ::strchr(expression_cstr+1,'-');
|
|
const char *close_bracket_position = ::strchr(expression_cstr+1,']');
|
|
if (!close_bracket_position) // if there is no ], this is a syntax error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
if (!separator_position || separator_position > close_bracket_position) // if no separator, this is either [] or [N]
|
|
{
|
|
char *end = NULL;
|
|
unsigned long index = ::strtoul (expression_cstr+1, &end, 0);
|
|
if (!end || end != close_bracket_position) // if something weird is in our way return an error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
if (end - expression_cstr == 1) // if this is [], only return a valid value for arrays
|
|
{
|
|
if (root_clang_type_info.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
int max_index = root->GetNumChildren() - 1;
|
|
for (int index = 0; index < max_index; index++)
|
|
{
|
|
ValueObjectSP child =
|
|
root->GetChildAtIndex(index, true);
|
|
list->Append(child);
|
|
}
|
|
*first_unparsed = expression_cstr+2;
|
|
*reason_to_stop = ValueObject::eRangeOperatorExpanded;
|
|
*final_result = ValueObject::eValueObjectList;
|
|
return max_index; // tell me number of items I added to the VOList
|
|
}
|
|
else
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eEmptyRangeNotAllowed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
}
|
|
// from here on we do have a valid index
|
|
if (root_clang_type_info.Test(ClangASTContext::eTypeIsArray))
|
|
{
|
|
root = root->GetChildAtIndex(index, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
list->Append(root);
|
|
*first_unparsed = end+1; // skip ]
|
|
*reason_to_stop = ValueObject::eRangeOperatorExpanded;
|
|
*final_result = ValueObject::eValueObjectList;
|
|
return 1;
|
|
}
|
|
}
|
|
else if (root_clang_type_info.Test(ClangASTContext::eTypeIsPointer))
|
|
{
|
|
if (*what_next == ValueObject::eDereference && // if this is a ptr-to-scalar, I am accessing it by index and I would have deref'ed anyway, then do it now and use this as a bitfield
|
|
pointee_clang_type_info.Test(ClangASTContext::eTypeIsScalar))
|
|
{
|
|
Error error;
|
|
root = root->Dereference(error);
|
|
if (error.Fail() || !root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eDereferencingFailed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
*what_next = eNothing;
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
root = root->GetSyntheticArrayMemberFromPointer(index, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
list->Append(root);
|
|
*first_unparsed = end+1; // skip ]
|
|
*reason_to_stop = ValueObject::eRangeOperatorExpanded;
|
|
*final_result = ValueObject::eValueObjectList;
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
else /*if (ClangASTContext::IsScalarType(root_clang_type))*/
|
|
{
|
|
root = root->GetSyntheticBitFieldChild(index, index, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else // we do not know how to expand members of bitfields, so we just return and let the caller do any further processing
|
|
{
|
|
list->Append(root);
|
|
*first_unparsed = end+1; // skip ]
|
|
*reason_to_stop = ValueObject::eRangeOperatorExpanded;
|
|
*final_result = ValueObject::eValueObjectList;
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
else // we have a low and a high index
|
|
{
|
|
char *end = NULL;
|
|
unsigned long index_lower = ::strtoul (expression_cstr+1, &end, 0);
|
|
if (!end || end != separator_position) // if something weird is in our way return an error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
unsigned long index_higher = ::strtoul (separator_position+1, &end, 0);
|
|
if (!end || end != close_bracket_position) // if something weird is in our way return an error
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
if (index_lower > index_higher) // swap indices if required
|
|
{
|
|
unsigned long temp = index_lower;
|
|
index_lower = index_higher;
|
|
index_higher = temp;
|
|
}
|
|
if (root_clang_type_info.Test(ClangASTContext::eTypeIsScalar)) // expansion only works for scalars
|
|
{
|
|
root = root->GetSyntheticBitFieldChild(index_lower, index_higher, true);
|
|
if (!root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eNoSuchChild;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
list->Append(root);
|
|
*first_unparsed = end+1; // skip ]
|
|
*reason_to_stop = ValueObject::eRangeOperatorExpanded;
|
|
*final_result = ValueObject::eValueObjectList;
|
|
return 1;
|
|
}
|
|
}
|
|
else if (root_clang_type_info.Test(ClangASTContext::eTypeIsPointer) && // if this is a ptr-to-scalar, I am accessing it by index and I would have deref'ed anyway, then do it now and use this as a bitfield
|
|
*what_next == ValueObject::eDereference &&
|
|
pointee_clang_type_info.Test(ClangASTContext::eTypeIsScalar))
|
|
{
|
|
Error error;
|
|
root = root->Dereference(error);
|
|
if (error.Fail() || !root.get())
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eDereferencingFailed;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
}
|
|
else
|
|
{
|
|
*what_next = ValueObject::eNothing;
|
|
continue;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (unsigned long index = index_lower;
|
|
index <= index_higher; index++)
|
|
{
|
|
ValueObjectSP child =
|
|
root->GetChildAtIndex(index, true);
|
|
list->Append(child);
|
|
}
|
|
*first_unparsed = end+1;
|
|
*reason_to_stop = ValueObject::eRangeOperatorExpanded;
|
|
*final_result = ValueObject::eValueObjectList;
|
|
return index_higher-index_lower+1; // tell me number of items I added to the VOList
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default: // some non-[ separator, or something entirely wrong, is in the way
|
|
{
|
|
*first_unparsed = expression_cstr;
|
|
*reason_to_stop = ValueObject::eUnexpectedSymbol;
|
|
*final_result = ValueObject::eInvalid;
|
|
return 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
DumpValueObject_Impl (Stream &s,
|
|
ValueObject *valobj,
|
|
const ValueObject::DumpValueObjectOptions& options,
|
|
uint32_t ptr_depth,
|
|
uint32_t curr_depth)
|
|
{
|
|
if (valobj)
|
|
{
|
|
bool update_success = valobj->UpdateValueIfNeeded (options.m_use_dynamic, true);
|
|
|
|
const char *root_valobj_name =
|
|
options.m_root_valobj_name.empty() ?
|
|
valobj->GetName().AsCString() :
|
|
options.m_root_valobj_name.c_str();
|
|
|
|
if (update_success && options.m_use_dynamic != eNoDynamicValues)
|
|
{
|
|
ValueObject *dynamic_value = valobj->GetDynamicValue(options.m_use_dynamic).get();
|
|
if (dynamic_value)
|
|
valobj = dynamic_value;
|
|
}
|
|
|
|
clang_type_t clang_type = valobj->GetClangType();
|
|
|
|
const Flags type_flags (ClangASTContext::GetTypeInfo (clang_type, NULL, NULL));
|
|
const char *err_cstr = NULL;
|
|
const bool has_children = type_flags.Test (ClangASTContext::eTypeHasChildren);
|
|
const bool has_value = type_flags.Test (ClangASTContext::eTypeHasValue);
|
|
|
|
const bool print_valobj = options.m_flat_output == false || has_value;
|
|
|
|
if (print_valobj)
|
|
{
|
|
if (options.m_show_location)
|
|
{
|
|
s.Printf("%s: ", valobj->GetLocationAsCString());
|
|
}
|
|
|
|
s.Indent();
|
|
|
|
// Always show the type for the top level items.
|
|
if (options.m_show_types || (curr_depth == 0 && !options.m_flat_output))
|
|
{
|
|
const char* typeName = valobj->GetTypeName().AsCString("<invalid type>");
|
|
s.Printf("(%s", typeName);
|
|
// only show dynamic types if the user really wants to see types
|
|
if (options.m_show_types && options.m_use_dynamic != eNoDynamicValues &&
|
|
(/*strstr(typeName, "id") == typeName ||*/
|
|
ClangASTType::GetMinimumLanguage(valobj->GetClangAST(), valobj->GetClangType()) == eLanguageTypeObjC))
|
|
{
|
|
ExecutionContext exe_ctx (valobj->GetExecutionContextRef());
|
|
Process *process = exe_ctx.GetProcessPtr();
|
|
if (process == NULL)
|
|
s.Printf(", dynamic type: unknown) ");
|
|
else
|
|
{
|
|
ObjCLanguageRuntime *runtime = process->GetObjCLanguageRuntime();
|
|
if (runtime == NULL)
|
|
s.Printf(", dynamic type: unknown) ");
|
|
else
|
|
{
|
|
ObjCLanguageRuntime::ObjCISA isa = runtime->GetISA(*valobj);
|
|
if (!runtime->IsValidISA(isa))
|
|
s.Printf(", dynamic type: unknown) ");
|
|
else
|
|
s.Printf(", dynamic type: %s) ",
|
|
runtime->GetActualTypeName(isa).GetCString());
|
|
}
|
|
}
|
|
}
|
|
else
|
|
s.Printf(") ");
|
|
}
|
|
|
|
|
|
if (options.m_flat_output)
|
|
{
|
|
// If we are showing types, also qualify the C++ base classes
|
|
const bool qualify_cxx_base_classes = options.m_show_types;
|
|
valobj->GetExpressionPath(s, qualify_cxx_base_classes);
|
|
s.PutCString(" =");
|
|
}
|
|
else
|
|
{
|
|
const char *name_cstr = root_valobj_name ? root_valobj_name : valobj->GetName().AsCString("");
|
|
s.Printf ("%s =", name_cstr);
|
|
}
|
|
|
|
if (!options.m_scope_already_checked && !valobj->IsInScope())
|
|
{
|
|
err_cstr = "out of scope";
|
|
}
|
|
}
|
|
|
|
std::string summary_str;
|
|
std::string value_str;
|
|
const char *val_cstr = NULL;
|
|
const char *sum_cstr = NULL;
|
|
TypeSummaryImpl* entry = options.m_summary_sp ? options.m_summary_sp.get() : valobj->GetSummaryFormat().get();
|
|
|
|
if (options.m_omit_summary_depth > 0)
|
|
entry = NULL;
|
|
|
|
if (err_cstr == NULL)
|
|
{
|
|
if (options.m_format != eFormatDefault && options.m_format != valobj->GetFormat())
|
|
{
|
|
valobj->GetValueAsCString(options.m_format,
|
|
value_str);
|
|
}
|
|
else
|
|
{
|
|
val_cstr = valobj->GetValueAsCString();
|
|
if (val_cstr)
|
|
value_str = val_cstr;
|
|
}
|
|
err_cstr = valobj->GetError().AsCString();
|
|
}
|
|
|
|
if (err_cstr)
|
|
{
|
|
s.Printf (" <%s>\n", err_cstr);
|
|
}
|
|
else
|
|
{
|
|
const bool is_ref = type_flags.Test (ClangASTContext::eTypeIsReference);
|
|
if (print_valobj)
|
|
{
|
|
if (options.m_omit_summary_depth == 0)
|
|
{
|
|
if (options.m_summary_sp)
|
|
{
|
|
valobj->GetSummaryAsCString(entry, summary_str);
|
|
sum_cstr = summary_str.c_str();
|
|
}
|
|
else
|
|
sum_cstr = valobj->GetSummaryAsCString();
|
|
}
|
|
|
|
// Make sure we have a value and make sure the summary didn't
|
|
// specify that the value should not be printed
|
|
if (!value_str.empty() && (entry == NULL || entry->DoesPrintValue() || sum_cstr == NULL))
|
|
s.Printf(" %s", value_str.c_str());
|
|
|
|
if (sum_cstr)
|
|
s.Printf(" %s", sum_cstr);
|
|
|
|
if (options.m_use_objc)
|
|
{
|
|
const char *object_desc = valobj->GetObjectDescription();
|
|
if (object_desc)
|
|
s.Printf(" %s\n", object_desc);
|
|
else
|
|
s.Printf (" [no Objective-C description available]\n");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (curr_depth < options.m_max_depth)
|
|
{
|
|
// We will show children for all concrete types. We won't show
|
|
// pointer contents unless a pointer depth has been specified.
|
|
// We won't reference contents unless the reference is the
|
|
// root object (depth of zero).
|
|
bool print_children = true;
|
|
|
|
// Use a new temporary pointer depth in case we override the
|
|
// current pointer depth below...
|
|
uint32_t curr_ptr_depth = ptr_depth;
|
|
|
|
const bool is_ptr = type_flags.Test (ClangASTContext::eTypeIsPointer);
|
|
if (is_ptr || is_ref)
|
|
{
|
|
// We have a pointer or reference whose value is an address.
|
|
// Make sure that address is not NULL
|
|
AddressType ptr_address_type;
|
|
if (valobj->GetPointerValue (&ptr_address_type) == 0)
|
|
print_children = false;
|
|
|
|
else if (is_ref && curr_depth == 0)
|
|
{
|
|
// If this is the root object (depth is zero) that we are showing
|
|
// and it is a reference, and no pointer depth has been supplied
|
|
// print out what it references. Don't do this at deeper depths
|
|
// otherwise we can end up with infinite recursion...
|
|
curr_ptr_depth = 1;
|
|
}
|
|
|
|
if (curr_ptr_depth == 0)
|
|
print_children = false;
|
|
}
|
|
|
|
if (print_children && (!entry || entry->DoesPrintChildren() || !sum_cstr))
|
|
{
|
|
ValueObjectSP synth_valobj = valobj->GetSyntheticValue (options.m_use_synthetic ?
|
|
eUseSyntheticFilter :
|
|
eNoSyntheticFilter);
|
|
uint32_t num_children = synth_valobj->GetNumChildren();
|
|
bool print_dotdotdot = false;
|
|
if (num_children)
|
|
{
|
|
if (options.m_flat_output)
|
|
{
|
|
if (print_valobj)
|
|
s.EOL();
|
|
}
|
|
else
|
|
{
|
|
if (print_valobj)
|
|
s.PutCString(is_ref ? ": {\n" : " {\n");
|
|
s.IndentMore();
|
|
}
|
|
|
|
uint32_t max_num_children = valobj->GetTargetSP()->GetMaximumNumberOfChildrenToDisplay();
|
|
|
|
if (num_children > max_num_children && !options.m_ignore_cap)
|
|
{
|
|
num_children = max_num_children;
|
|
print_dotdotdot = true;
|
|
}
|
|
|
|
ValueObject::DumpValueObjectOptions child_options(options);
|
|
child_options.SetFormat().SetSummary().SetRootValueObjectName();
|
|
child_options.SetScopeChecked(true)
|
|
.SetOmitSummaryDepth(child_options.m_omit_summary_depth > 1 ? child_options.m_omit_summary_depth - 1 : 0);
|
|
for (uint32_t idx=0; idx<num_children; ++idx)
|
|
{
|
|
ValueObjectSP child_sp(synth_valobj->GetChildAtIndex(idx, true));
|
|
if (child_sp.get())
|
|
{
|
|
DumpValueObject_Impl (s,
|
|
child_sp.get(),
|
|
child_options,
|
|
(is_ptr || is_ref) ? curr_ptr_depth - 1 : curr_ptr_depth,
|
|
curr_depth + 1);
|
|
}
|
|
}
|
|
|
|
if (!options.m_flat_output)
|
|
{
|
|
if (print_dotdotdot)
|
|
{
|
|
ExecutionContext exe_ctx (valobj->GetExecutionContextRef());
|
|
Target *target = exe_ctx.GetTargetPtr();
|
|
if (target)
|
|
target->GetDebugger().GetCommandInterpreter().ChildrenTruncated();
|
|
s.Indent("...\n");
|
|
}
|
|
s.IndentLess();
|
|
s.Indent("}\n");
|
|
}
|
|
}
|
|
else if (has_children)
|
|
{
|
|
// Aggregate, no children...
|
|
if (print_valobj)
|
|
s.PutCString(" {}\n");
|
|
}
|
|
else
|
|
{
|
|
if (print_valobj)
|
|
s.EOL();
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
s.EOL();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (has_children && print_valobj)
|
|
{
|
|
s.PutCString("{...}\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
ValueObject::DumpValueObject (Stream &s,
|
|
ValueObject *valobj)
|
|
{
|
|
|
|
if (!valobj)
|
|
return;
|
|
|
|
DumpValueObject_Impl(s,
|
|
valobj,
|
|
DumpValueObjectOptions::DefaultOptions(),
|
|
0,
|
|
0);
|
|
}
|
|
|
|
void
|
|
ValueObject::DumpValueObject (Stream &s,
|
|
ValueObject *valobj,
|
|
const DumpValueObjectOptions& options)
|
|
{
|
|
DumpValueObject_Impl(s,
|
|
valobj,
|
|
options,
|
|
options.m_max_ptr_depth, // max pointer depth allowed, we will go down from here
|
|
0 // current object depth is 0 since we are just starting
|
|
);
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::CreateConstantValue (const ConstString &name)
|
|
{
|
|
ValueObjectSP valobj_sp;
|
|
|
|
if (UpdateValueIfNeeded(false) && m_error.Success())
|
|
{
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
clang::ASTContext *ast = GetClangAST ();
|
|
|
|
DataExtractor data;
|
|
data.SetByteOrder (m_data.GetByteOrder());
|
|
data.SetAddressByteSize(m_data.GetAddressByteSize());
|
|
|
|
m_error = m_value.GetValueAsData (&exe_ctx, ast, data, 0, GetModule().get());
|
|
|
|
valobj_sp = ValueObjectConstResult::Create (exe_ctx.GetBestExecutionContextScope(),
|
|
ast,
|
|
GetClangType(),
|
|
name,
|
|
data,
|
|
GetAddressOf());
|
|
}
|
|
|
|
if (!valobj_sp)
|
|
{
|
|
valobj_sp = ValueObjectConstResult::Create (NULL, m_error);
|
|
}
|
|
return valobj_sp;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::Dereference (Error &error)
|
|
{
|
|
if (m_deref_valobj)
|
|
return m_deref_valobj->GetSP();
|
|
|
|
const bool is_pointer_type = IsPointerType();
|
|
if (is_pointer_type)
|
|
{
|
|
bool omit_empty_base_classes = true;
|
|
bool ignore_array_bounds = false;
|
|
|
|
std::string child_name_str;
|
|
uint32_t child_byte_size = 0;
|
|
int32_t child_byte_offset = 0;
|
|
uint32_t child_bitfield_bit_size = 0;
|
|
uint32_t child_bitfield_bit_offset = 0;
|
|
bool child_is_base_class = false;
|
|
bool child_is_deref_of_parent = false;
|
|
const bool transparent_pointers = false;
|
|
clang::ASTContext *clang_ast = GetClangAST();
|
|
clang_type_t clang_type = GetClangType();
|
|
clang_type_t child_clang_type;
|
|
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
|
|
child_clang_type = ClangASTContext::GetChildClangTypeAtIndex (&exe_ctx,
|
|
clang_ast,
|
|
GetName().GetCString(),
|
|
clang_type,
|
|
0,
|
|
transparent_pointers,
|
|
omit_empty_base_classes,
|
|
ignore_array_bounds,
|
|
child_name_str,
|
|
child_byte_size,
|
|
child_byte_offset,
|
|
child_bitfield_bit_size,
|
|
child_bitfield_bit_offset,
|
|
child_is_base_class,
|
|
child_is_deref_of_parent);
|
|
if (child_clang_type && child_byte_size)
|
|
{
|
|
ConstString child_name;
|
|
if (!child_name_str.empty())
|
|
child_name.SetCString (child_name_str.c_str());
|
|
|
|
m_deref_valobj = new ValueObjectChild (*this,
|
|
clang_ast,
|
|
child_clang_type,
|
|
child_name,
|
|
child_byte_size,
|
|
child_byte_offset,
|
|
child_bitfield_bit_size,
|
|
child_bitfield_bit_offset,
|
|
child_is_base_class,
|
|
child_is_deref_of_parent,
|
|
eAddressTypeInvalid);
|
|
}
|
|
}
|
|
|
|
if (m_deref_valobj)
|
|
{
|
|
error.Clear();
|
|
return m_deref_valobj->GetSP();
|
|
}
|
|
else
|
|
{
|
|
StreamString strm;
|
|
GetExpressionPath(strm, true);
|
|
|
|
if (is_pointer_type)
|
|
error.SetErrorStringWithFormat("dereference failed: (%s) %s", GetTypeName().AsCString("<invalid type>"), strm.GetString().c_str());
|
|
else
|
|
error.SetErrorStringWithFormat("not a pointer type: (%s) %s", GetTypeName().AsCString("<invalid type>"), strm.GetString().c_str());
|
|
return ValueObjectSP();
|
|
}
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::AddressOf (Error &error)
|
|
{
|
|
if (m_addr_of_valobj_sp)
|
|
return m_addr_of_valobj_sp;
|
|
|
|
AddressType address_type = eAddressTypeInvalid;
|
|
const bool scalar_is_load_address = false;
|
|
addr_t addr = GetAddressOf (scalar_is_load_address, &address_type);
|
|
error.Clear();
|
|
if (addr != LLDB_INVALID_ADDRESS)
|
|
{
|
|
switch (address_type)
|
|
{
|
|
default:
|
|
case eAddressTypeInvalid:
|
|
{
|
|
StreamString expr_path_strm;
|
|
GetExpressionPath(expr_path_strm, true);
|
|
error.SetErrorStringWithFormat("'%s' is not in memory", expr_path_strm.GetString().c_str());
|
|
}
|
|
break;
|
|
|
|
case eAddressTypeFile:
|
|
case eAddressTypeLoad:
|
|
case eAddressTypeHost:
|
|
{
|
|
clang::ASTContext *ast = GetClangAST();
|
|
clang_type_t clang_type = GetClangType();
|
|
if (ast && clang_type)
|
|
{
|
|
std::string name (1, '&');
|
|
name.append (m_name.AsCString(""));
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
m_addr_of_valobj_sp = ValueObjectConstResult::Create (exe_ctx.GetBestExecutionContextScope(),
|
|
ast,
|
|
ClangASTContext::CreatePointerType (ast, clang_type),
|
|
ConstString (name.c_str()),
|
|
addr,
|
|
eAddressTypeInvalid,
|
|
m_data.GetAddressByteSize());
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return m_addr_of_valobj_sp;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::Cast (const ClangASTType &clang_ast_type)
|
|
{
|
|
return ValueObjectCast::Create (*this, GetName(), clang_ast_type);
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::CastPointerType (const char *name, ClangASTType &clang_ast_type)
|
|
{
|
|
ValueObjectSP valobj_sp;
|
|
AddressType address_type;
|
|
addr_t ptr_value = GetPointerValue (&address_type);
|
|
|
|
if (ptr_value != LLDB_INVALID_ADDRESS)
|
|
{
|
|
Address ptr_addr (ptr_value);
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
valobj_sp = ValueObjectMemory::Create (exe_ctx.GetBestExecutionContextScope(),
|
|
name,
|
|
ptr_addr,
|
|
clang_ast_type);
|
|
}
|
|
return valobj_sp;
|
|
}
|
|
|
|
ValueObjectSP
|
|
ValueObject::CastPointerType (const char *name, TypeSP &type_sp)
|
|
{
|
|
ValueObjectSP valobj_sp;
|
|
AddressType address_type;
|
|
addr_t ptr_value = GetPointerValue (&address_type);
|
|
|
|
if (ptr_value != LLDB_INVALID_ADDRESS)
|
|
{
|
|
Address ptr_addr (ptr_value);
|
|
ExecutionContext exe_ctx (GetExecutionContextRef());
|
|
valobj_sp = ValueObjectMemory::Create (exe_ctx.GetBestExecutionContextScope(),
|
|
name,
|
|
ptr_addr,
|
|
type_sp);
|
|
}
|
|
return valobj_sp;
|
|
}
|
|
|
|
ValueObject::EvaluationPoint::EvaluationPoint () :
|
|
m_mod_id(),
|
|
m_exe_ctx_ref(),
|
|
m_needs_update (true),
|
|
m_first_update (true)
|
|
{
|
|
}
|
|
|
|
ValueObject::EvaluationPoint::EvaluationPoint (ExecutionContextScope *exe_scope, bool use_selected):
|
|
m_mod_id(),
|
|
m_exe_ctx_ref(),
|
|
m_needs_update (true),
|
|
m_first_update (true)
|
|
{
|
|
ExecutionContext exe_ctx(exe_scope);
|
|
TargetSP target_sp (exe_ctx.GetTargetSP());
|
|
if (target_sp)
|
|
{
|
|
m_exe_ctx_ref.SetTargetSP (target_sp);
|
|
ProcessSP process_sp (exe_ctx.GetProcessSP());
|
|
if (!process_sp)
|
|
process_sp = target_sp->GetProcessSP();
|
|
|
|
if (process_sp)
|
|
{
|
|
m_mod_id = process_sp->GetModID();
|
|
m_exe_ctx_ref.SetProcessSP (process_sp);
|
|
|
|
ThreadSP thread_sp (exe_ctx.GetThreadSP());
|
|
|
|
if (!thread_sp)
|
|
{
|
|
if (use_selected)
|
|
thread_sp = process_sp->GetThreadList().GetSelectedThread();
|
|
}
|
|
|
|
if (thread_sp)
|
|
{
|
|
m_exe_ctx_ref.SetThreadSP(thread_sp);
|
|
|
|
StackFrameSP frame_sp (exe_ctx.GetFrameSP());
|
|
if (!frame_sp)
|
|
{
|
|
if (use_selected)
|
|
frame_sp = thread_sp->GetSelectedFrame();
|
|
}
|
|
if (frame_sp)
|
|
m_exe_ctx_ref.SetFrameSP(frame_sp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ValueObject::EvaluationPoint::EvaluationPoint (const ValueObject::EvaluationPoint &rhs) :
|
|
m_mod_id(),
|
|
m_exe_ctx_ref(rhs.m_exe_ctx_ref),
|
|
m_needs_update (true),
|
|
m_first_update (true)
|
|
{
|
|
}
|
|
|
|
ValueObject::EvaluationPoint::~EvaluationPoint ()
|
|
{
|
|
}
|
|
|
|
// This function checks the EvaluationPoint against the current process state. If the current
|
|
// state matches the evaluation point, or the evaluation point is already invalid, then we return
|
|
// false, meaning "no change". If the current state is different, we update our state, and return
|
|
// true meaning "yes, change". If we did see a change, we also set m_needs_update to true, so
|
|
// future calls to NeedsUpdate will return true.
|
|
// exe_scope will be set to the current execution context scope.
|
|
|
|
bool
|
|
ValueObject::EvaluationPoint::SyncWithProcessState()
|
|
{
|
|
|
|
// Start with the target, if it is NULL, then we're obviously not going to get any further:
|
|
ExecutionContext exe_ctx(m_exe_ctx_ref.Lock());
|
|
|
|
if (exe_ctx.GetTargetPtr() == NULL)
|
|
return false;
|
|
|
|
// If we don't have a process nothing can change.
|
|
Process *process = exe_ctx.GetProcessPtr();
|
|
if (process == NULL)
|
|
return false;
|
|
|
|
// If our stop id is the current stop ID, nothing has changed:
|
|
ProcessModID current_mod_id = process->GetModID();
|
|
|
|
// If the current stop id is 0, either we haven't run yet, or the process state has been cleared.
|
|
// In either case, we aren't going to be able to sync with the process state.
|
|
if (current_mod_id.GetStopID() == 0)
|
|
return false;
|
|
|
|
bool changed;
|
|
|
|
if (m_mod_id.IsValid())
|
|
{
|
|
if (m_mod_id == current_mod_id)
|
|
{
|
|
// Everything is already up to date in this object, no need to
|
|
// update the execution context scope.
|
|
changed = false;
|
|
}
|
|
else
|
|
{
|
|
m_mod_id = current_mod_id;
|
|
m_needs_update = true;
|
|
changed = true;
|
|
}
|
|
}
|
|
|
|
// Now re-look up the thread and frame in case the underlying objects have gone away & been recreated.
|
|
// That way we'll be sure to return a valid exe_scope.
|
|
// If we used to have a thread or a frame but can't find it anymore, then mark ourselves as invalid.
|
|
|
|
if (m_exe_ctx_ref.HasThreadRef())
|
|
{
|
|
ThreadSP thread_sp (m_exe_ctx_ref.GetThreadSP());
|
|
if (thread_sp)
|
|
{
|
|
if (m_exe_ctx_ref.HasFrameRef())
|
|
{
|
|
StackFrameSP frame_sp (m_exe_ctx_ref.GetFrameSP());
|
|
if (!frame_sp)
|
|
{
|
|
// We used to have a frame, but now it is gone
|
|
SetInvalid();
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// We used to have a thread, but now it is gone
|
|
SetInvalid();
|
|
}
|
|
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
void
|
|
ValueObject::EvaluationPoint::SetUpdated ()
|
|
{
|
|
ProcessSP process_sp(m_exe_ctx_ref.GetProcessSP());
|
|
if (process_sp)
|
|
m_mod_id = process_sp->GetModID();
|
|
m_first_update = false;
|
|
m_needs_update = false;
|
|
}
|
|
|
|
|
|
//bool
|
|
//ValueObject::EvaluationPoint::SetContext (ExecutionContextScope *exe_scope)
|
|
//{
|
|
// if (!IsValid())
|
|
// return false;
|
|
//
|
|
// bool needs_update = false;
|
|
//
|
|
// // The target has to be non-null, and the
|
|
// Target *target = exe_scope->CalculateTarget();
|
|
// if (target != NULL)
|
|
// {
|
|
// Target *old_target = m_target_sp.get();
|
|
// assert (target == old_target);
|
|
// Process *process = exe_scope->CalculateProcess();
|
|
// if (process != NULL)
|
|
// {
|
|
// // FOR NOW - assume you can't update variable objects across process boundaries.
|
|
// Process *old_process = m_process_sp.get();
|
|
// assert (process == old_process);
|
|
// ProcessModID current_mod_id = process->GetModID();
|
|
// if (m_mod_id != current_mod_id)
|
|
// {
|
|
// needs_update = true;
|
|
// m_mod_id = current_mod_id;
|
|
// }
|
|
// // See if we're switching the thread or stack context. If no thread is given, this is
|
|
// // being evaluated in a global context.
|
|
// Thread *thread = exe_scope->CalculateThread();
|
|
// if (thread != NULL)
|
|
// {
|
|
// user_id_t new_thread_index = thread->GetIndexID();
|
|
// if (new_thread_index != m_thread_id)
|
|
// {
|
|
// needs_update = true;
|
|
// m_thread_id = new_thread_index;
|
|
// m_stack_id.Clear();
|
|
// }
|
|
//
|
|
// StackFrame *new_frame = exe_scope->CalculateStackFrame();
|
|
// if (new_frame != NULL)
|
|
// {
|
|
// if (new_frame->GetStackID() != m_stack_id)
|
|
// {
|
|
// needs_update = true;
|
|
// m_stack_id = new_frame->GetStackID();
|
|
// }
|
|
// }
|
|
// else
|
|
// {
|
|
// m_stack_id.Clear();
|
|
// needs_update = true;
|
|
// }
|
|
// }
|
|
// else
|
|
// {
|
|
// // If this had been given a thread, and now there is none, we should update.
|
|
// // Otherwise we don't have to do anything.
|
|
// if (m_thread_id != LLDB_INVALID_UID)
|
|
// {
|
|
// m_thread_id = LLDB_INVALID_UID;
|
|
// m_stack_id.Clear();
|
|
// needs_update = true;
|
|
// }
|
|
// }
|
|
// }
|
|
// else
|
|
// {
|
|
// // If there is no process, then we don't need to update anything.
|
|
// // But if we're switching from having a process to not, we should try to update.
|
|
// if (m_process_sp.get() != NULL)
|
|
// {
|
|
// needs_update = true;
|
|
// m_process_sp.reset();
|
|
// m_thread_id = LLDB_INVALID_UID;
|
|
// m_stack_id.Clear();
|
|
// }
|
|
// }
|
|
// }
|
|
// else
|
|
// {
|
|
// // If there's no target, nothing can change so we don't need to update anything.
|
|
// // But if we're switching from having a target to not, we should try to update.
|
|
// if (m_target_sp.get() != NULL)
|
|
// {
|
|
// needs_update = true;
|
|
// m_target_sp.reset();
|
|
// m_process_sp.reset();
|
|
// m_thread_id = LLDB_INVALID_UID;
|
|
// m_stack_id.Clear();
|
|
// }
|
|
// }
|
|
// if (!m_needs_update)
|
|
// m_needs_update = needs_update;
|
|
//
|
|
// return needs_update;
|
|
//}
|
|
|
|
void
|
|
ValueObject::ClearUserVisibleData()
|
|
{
|
|
m_location_str.clear();
|
|
m_value_str.clear();
|
|
m_summary_str.clear();
|
|
m_object_desc_str.clear();
|
|
m_synthetic_value = NULL;
|
|
m_is_getting_summary = false;
|
|
}
|
|
|
|
SymbolContextScope *
|
|
ValueObject::GetSymbolContextScope()
|
|
{
|
|
if (m_parent)
|
|
{
|
|
if (!m_parent->IsPointerOrReferenceType())
|
|
return m_parent->GetSymbolContextScope();
|
|
}
|
|
return NULL;
|
|
}
|