1 //===-- LibStdcpp.cpp ---------------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "lldb/lldb-python.h"
12 #include "lldb/DataFormatters/CXXFormatterFunctions.h"
14 #include "lldb/Core/DataBufferHeap.h"
15 #include "lldb/Core/Error.h"
16 #include "lldb/Core/Stream.h"
17 #include "lldb/Core/ValueObject.h"
18 #include "lldb/Core/ValueObjectConstResult.h"
19 #include "lldb/Host/Endian.h"
20 #include "lldb/Symbol/ClangASTContext.h"
21 #include "lldb/Target/ObjCLanguageRuntime.h"
22 #include "lldb/Target/Target.h"
25 using namespace lldb_private;
26 using namespace lldb_private::formatters;
28 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::LibstdcppVectorBoolSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
29 SyntheticChildrenFrontEnd(*valobj_sp.get()),
32 m_base_data_address(0),
37 m_options.SetCoerceToId(false);
38 m_options.SetUnwindOnError(true);
39 m_options.SetKeepInMemory(true);
40 m_options.SetUseDynamic(lldb::eDynamicCanRunTarget);
44 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::CalculateNumChildren ()
50 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetChildAtIndex (size_t idx)
53 return ValueObjectSP();
54 if (m_base_data_address == 0 || m_count == 0)
55 return ValueObjectSP();
56 size_t byte_idx = (idx >> 3); // divide by 8 to get byte index
57 size_t bit_index = (idx & 7); // efficient idx % 8 for bit index
58 lldb::addr_t byte_location = m_base_data_address + byte_idx;
59 ProcessSP process_sp(m_exe_ctx_ref.GetProcessSP());
61 return ValueObjectSP();
65 size_t bytes_read = process_sp->ReadMemory(byte_location, &byte, 1, err);
66 if (err.Fail() || bytes_read == 0)
67 return ValueObjectSP();
87 return ValueObjectSP();
89 bool bit_set = ((byte & mask) != 0);
90 Target& target(process_sp->GetTarget());
91 ValueObjectSP retval_sp;
93 target.EvaluateExpression("(bool)true", NULL, retval_sp);
95 target.EvaluateExpression("(bool)false", NULL, retval_sp);
96 StreamString name; name.Printf("[%zu]",idx);
98 retval_sp->SetName(ConstString(name.GetData()));
102 /*((std::vector<std::allocator<bool> >) vBool = {
103 (std::_Bvector_base<std::allocator<bool> >) std::_Bvector_base<std::allocator<bool> > = {
104 (std::_Bvector_base<std::allocator<bool> >::_Bvector_impl) _M_impl = {
105 (std::_Bit_iterator) _M_start = {
106 (std::_Bit_iterator_base) std::_Bit_iterator_base = {
107 (_Bit_type *) _M_p = 0x0016b160
108 (unsigned int) _M_offset = 0
111 (std::_Bit_iterator) _M_finish = {
112 (std::_Bit_iterator_base) std::_Bit_iterator_base = {
113 (_Bit_type *) _M_p = 0x0016b16c
114 (unsigned int) _M_offset = 16
117 (_Bit_type *) _M_end_of_storage = 0x0016b170
124 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::Update()
126 ValueObjectSP valobj_sp = m_backend.GetSP();
131 m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
133 ValueObjectSP m_impl_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_impl"), true));
137 ValueObjectSP m_start_sp(m_impl_sp->GetChildMemberWithName(ConstString("_M_start"), true));
138 ValueObjectSP m_finish_sp(m_impl_sp->GetChildMemberWithName(ConstString("_M_finish"), true));
140 ValueObjectSP start_p_sp, finish_p_sp, finish_offset_sp;
142 if (!m_start_sp || !m_finish_sp)
145 start_p_sp = m_start_sp->GetChildMemberWithName(ConstString("_M_p"), true);
146 finish_p_sp = m_finish_sp->GetChildMemberWithName(ConstString("_M_p"), true);
147 finish_offset_sp = m_finish_sp->GetChildMemberWithName(ConstString("_M_offset"), true);
149 if (!start_p_sp || !finish_offset_sp || !finish_p_sp)
152 m_base_data_address = start_p_sp->GetValueAsUnsigned(0);
153 if (!m_base_data_address)
156 lldb::addr_t end_data_address(finish_p_sp->GetValueAsUnsigned(0));
157 if (!end_data_address)
160 if (end_data_address < m_base_data_address)
163 m_count = finish_offset_sp->GetValueAsUnsigned(0) + (end_data_address-m_base_data_address)*8;
169 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::MightHaveChildren ()
175 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
177 if (!m_count || !m_base_data_address)
179 const char* item_name = name.GetCString();
180 uint32_t idx = ExtractIndexFromString(item_name);
181 if (idx < UINT32_MAX && idx >= CalculateNumChildren())
186 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::~LibstdcppVectorBoolSyntheticFrontEnd ()
189 SyntheticChildrenFrontEnd*
190 lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
194 return (new LibstdcppVectorBoolSyntheticFrontEnd(valobj_sp));
198 (std::_Rb_tree_iterator<std::pair<const int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) ibeg = {
199 (_Base_ptr) _M_node = 0x0000000100103910 {
200 (std::_Rb_tree_color) _M_color = _S_black
201 (std::_Rb_tree_node_base::_Base_ptr) _M_parent = 0x00000001001038c0
202 (std::_Rb_tree_node_base::_Base_ptr) _M_left = 0x0000000000000000
203 (std::_Rb_tree_node_base::_Base_ptr) _M_right = 0x0000000000000000
208 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
209 SyntheticChildrenFrontEnd(*valobj_sp.get()),
218 m_options.SetCoerceToId(false);
219 m_options.SetUnwindOnError(true);
220 m_options.SetKeepInMemory(true);
221 m_options.SetUseDynamic(lldb::eDynamicCanRunTarget);
225 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::Update()
227 ValueObjectSP valobj_sp = m_backend.GetSP();
231 TargetSP target_sp(valobj_sp->GetTargetSP());
236 bool is_64bit = (target_sp->GetArchitecture().GetAddressByteSize() == 8);
240 m_exe_ctx_ref = valobj_sp->GetExecutionContextRef();
242 ValueObjectSP _M_node_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_node"), true));
246 m_pair_address = _M_node_sp->GetValueAsUnsigned(0);
247 if (m_pair_address == 0)
250 m_pair_address += (is_64bit ? 32 : 16);
252 ClangASTType my_type(valobj_sp->GetClangType());
253 if (my_type.GetNumTemplateArguments() >= 1)
255 TemplateArgumentKind kind;
256 ClangASTType pair_type = my_type.GetTemplateArgument(0, kind);
257 if (kind != eTemplateArgumentKindType && kind != eTemplateArgumentKindTemplate && kind != eTemplateArgumentKindTemplateExpansion)
259 m_pair_type = pair_type;
268 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren ()
274 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx)
276 if (m_pair_address != 0 && m_pair_type)
279 m_pair_sp = ValueObject::CreateValueObjectFromAddress("pair", m_pair_address, m_exe_ctx_ref, m_pair_type);
281 return m_pair_sp->GetChildAtIndex(idx, true);
283 return lldb::ValueObjectSP();
287 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::MightHaveChildren ()
293 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name)
295 if (name == ConstString("first"))
297 if (name == ConstString("second"))
302 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::~LibstdcppMapIteratorSyntheticFrontEnd ()
305 SyntheticChildrenFrontEnd*
306 lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
310 return (new LibstdcppMapIteratorSyntheticFrontEnd(valobj_sp));
314 (lldb) fr var ibeg --ptr-depth 1
315 (__gnu_cxx::__normal_iterator<int *, std::vector<int, std::allocator<int> > >) ibeg = {
316 _M_current = 0x00000001001037a0 {
322 SyntheticChildrenFrontEnd*
323 lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
325 static ConstString g_item_name;
327 g_item_name.SetCString("_M_current");
330 return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name));