| //===-- LibStdcpp.cpp ---------------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/lldb-python.h" |
| |
| #include "lldb/DataFormatters/CXXFormatterFunctions.h" |
| |
| #include "lldb/Core/DataBufferHeap.h" |
| #include "lldb/Core/Error.h" |
| #include "lldb/Core/Stream.h" |
| #include "lldb/Core/ValueObject.h" |
| #include "lldb/Core/ValueObjectConstResult.h" |
| #include "lldb/Host/Endian.h" |
| #include "lldb/Symbol/ClangASTContext.h" |
| #include "lldb/Target/ObjCLanguageRuntime.h" |
| #include "lldb/Target/Target.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| using namespace lldb_private::formatters; |
| |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::LibstdcppVectorBoolSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd(*valobj_sp.get()), |
| m_exe_ctx_ref(), |
| m_count(0), |
| m_base_data_address(0), |
| m_options() |
| { |
| if (valobj_sp) |
| Update(); |
| m_options.SetCoerceToId(false) |
| .SetUnwindOnError(true) |
| .SetKeepInMemory(true) |
| .SetUseDynamic(lldb::eDynamicCanRunTarget); |
| } |
| |
| size_t |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::CalculateNumChildren () |
| { |
| return m_count; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| if (idx >= m_count) |
| return ValueObjectSP(); |
| if (m_base_data_address == 0 || m_count == 0) |
| return ValueObjectSP(); |
| size_t byte_idx = (idx >> 3); // divide by 8 to get byte index |
| size_t bit_index = (idx & 7); // efficient idx % 8 for bit index |
| lldb::addr_t byte_location = m_base_data_address + byte_idx; |
| ProcessSP process_sp(m_exe_ctx_ref.GetProcessSP()); |
| if (!process_sp) |
| return ValueObjectSP(); |
| uint8_t byte = 0; |
| uint8_t mask = 0; |
| Error err; |
| size_t bytes_read = process_sp->ReadMemory(byte_location, &byte, 1, err); |
| if (err.Fail() || bytes_read == 0) |
| return ValueObjectSP(); |
| switch (bit_index) |
| { |
| case 0: |
| mask = 1; break; |
| case 1: |
| mask = 2; break; |
| case 2: |
| mask = 4; break; |
| case 3: |
| mask = 8; break; |
| case 4: |
| mask = 16; break; |
| case 5: |
| mask = 32; break; |
| case 6: |
| mask = 64; break; |
| case 7: |
| mask = 128; break; |
| default: |
| return ValueObjectSP(); |
| } |
| bool bit_set = ((byte & mask) != 0); |
| Target& target(process_sp->GetTarget()); |
| ValueObjectSP retval_sp; |
| if (bit_set) |
| target.EvaluateExpression("(bool)true", NULL, retval_sp); |
| else |
| target.EvaluateExpression("(bool)false", NULL, retval_sp); |
| StreamString name; name.Printf("[%zu]",idx); |
| if (retval_sp) |
| retval_sp->SetName(ConstString(name.GetData())); |
| return retval_sp; |
| } |
| |
| /*((std::vector<std::allocator<bool> >) vBool = { |
| (std::_Bvector_base<std::allocator<bool> >) std::_Bvector_base<std::allocator<bool> > = { |
| (std::_Bvector_base<std::allocator<bool> >::_Bvector_impl) _M_impl = { |
| (std::_Bit_iterator) _M_start = { |
| (std::_Bit_iterator_base) std::_Bit_iterator_base = { |
| (_Bit_type *) _M_p = 0x0016b160 |
| (unsigned int) _M_offset = 0 |
| } |
| } |
| (std::_Bit_iterator) _M_finish = { |
| (std::_Bit_iterator_base) std::_Bit_iterator_base = { |
| (_Bit_type *) _M_p = 0x0016b16c |
| (unsigned int) _M_offset = 16 |
| } |
| } |
| (_Bit_type *) _M_end_of_storage = 0x0016b170 |
| } |
| } |
| } |
| */ |
| |
| bool |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::Update() |
| { |
| ValueObjectSP valobj_sp = m_backend.GetSP(); |
| if (!valobj_sp) |
| return false; |
| if (!valobj_sp) |
| return false; |
| m_exe_ctx_ref = valobj_sp->GetExecutionContextRef(); |
| |
| ValueObjectSP m_impl_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_impl"), true)); |
| if (!m_impl_sp) |
| return false; |
| |
| ValueObjectSP m_start_sp(m_impl_sp->GetChildMemberWithName(ConstString("_M_start"), true)); |
| ValueObjectSP m_finish_sp(m_impl_sp->GetChildMemberWithName(ConstString("_M_finish"), true)); |
| |
| ValueObjectSP start_p_sp, finish_p_sp, finish_offset_sp; |
| |
| if (!m_start_sp || !m_finish_sp) |
| return false; |
| |
| start_p_sp = m_start_sp->GetChildMemberWithName(ConstString("_M_p"), true); |
| finish_p_sp = m_finish_sp->GetChildMemberWithName(ConstString("_M_p"), true); |
| finish_offset_sp = m_finish_sp->GetChildMemberWithName(ConstString("_M_offset"), true); |
| |
| if (!start_p_sp || !finish_offset_sp || !finish_p_sp) |
| return false; |
| |
| m_base_data_address = start_p_sp->GetValueAsUnsigned(0); |
| if (!m_base_data_address) |
| return false; |
| |
| lldb::addr_t end_data_address(finish_p_sp->GetValueAsUnsigned(0)); |
| if (!end_data_address) |
| return false; |
| |
| if (end_data_address < m_base_data_address) |
| return false; |
| else |
| m_count = finish_offset_sp->GetValueAsUnsigned(0) + (end_data_address-m_base_data_address)*8; |
| |
| return true; |
| } |
| |
| bool |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| size_t |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) |
| { |
| if (!m_count || !m_base_data_address) |
| return UINT32_MAX; |
| const char* item_name = name.GetCString(); |
| uint32_t idx = ExtractIndexFromString(item_name); |
| if (idx < UINT32_MAX && idx >= CalculateNumChildren()) |
| return UINT32_MAX; |
| return idx; |
| } |
| |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::~LibstdcppVectorBoolSyntheticFrontEnd () |
| {} |
| |
| SyntheticChildrenFrontEnd* |
| lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) |
| { |
| if (!valobj_sp) |
| return NULL; |
| return (new LibstdcppVectorBoolSyntheticFrontEnd(valobj_sp)); |
| } |
| |
| /* |
| (std::_Rb_tree_iterator<std::pair<const int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >) ibeg = { |
| (_Base_ptr) _M_node = 0x0000000100103910 { |
| (std::_Rb_tree_color) _M_color = _S_black |
| (std::_Rb_tree_node_base::_Base_ptr) _M_parent = 0x00000001001038c0 |
| (std::_Rb_tree_node_base::_Base_ptr) _M_left = 0x0000000000000000 |
| (std::_Rb_tree_node_base::_Base_ptr) _M_right = 0x0000000000000000 |
| } |
| } |
| */ |
| |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::LibstdcppMapIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) : |
| SyntheticChildrenFrontEnd(*valobj_sp.get()), |
| m_exe_ctx_ref(), |
| m_pair_address(0), |
| m_pair_type(), |
| m_options(), |
| m_pair_sp() |
| { |
| if (valobj_sp) |
| Update(); |
| m_options.SetCoerceToId(false) |
| .SetUnwindOnError(true) |
| .SetKeepInMemory(true) |
| .SetUseDynamic(lldb::eDynamicCanRunTarget); |
| } |
| |
| bool |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::Update() |
| { |
| ValueObjectSP valobj_sp = m_backend.GetSP(); |
| if (!valobj_sp) |
| return false; |
| |
| TargetSP target_sp(valobj_sp->GetTargetSP()); |
| |
| if (!target_sp) |
| return false; |
| |
| bool is_64bit = (target_sp->GetArchitecture().GetAddressByteSize() == 8); |
| |
| if (!valobj_sp) |
| return false; |
| m_exe_ctx_ref = valobj_sp->GetExecutionContextRef(); |
| |
| ValueObjectSP _M_node_sp(valobj_sp->GetChildMemberWithName(ConstString("_M_node"), true)); |
| if (!_M_node_sp) |
| return false; |
| |
| m_pair_address = _M_node_sp->GetValueAsUnsigned(0); |
| if (m_pair_address == 0) |
| return false; |
| |
| m_pair_address += (is_64bit ? 32 : 16); |
| |
| ClangASTType my_type(valobj_sp->GetClangType()); |
| if (my_type.GetNumTemplateArguments() >= 1) |
| { |
| TemplateArgumentKind kind; |
| ClangASTType pair_type = my_type.GetTemplateArgument(0, kind); |
| if (kind != eTemplateArgumentKindType && kind != eTemplateArgumentKindTemplate && kind != eTemplateArgumentKindTemplateExpansion) |
| return false; |
| m_pair_type = pair_type; |
| } |
| else |
| return false; |
| |
| return true; |
| } |
| |
| size_t |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::CalculateNumChildren () |
| { |
| return 2; |
| } |
| |
| lldb::ValueObjectSP |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::GetChildAtIndex (size_t idx) |
| { |
| if (m_pair_address != 0 && m_pair_type) |
| { |
| if (!m_pair_sp) |
| m_pair_sp = ValueObject::CreateValueObjectFromAddress("pair", m_pair_address, m_exe_ctx_ref, m_pair_type); |
| if (m_pair_sp) |
| return m_pair_sp->GetChildAtIndex(idx, true); |
| } |
| return lldb::ValueObjectSP(); |
| } |
| |
| bool |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::MightHaveChildren () |
| { |
| return true; |
| } |
| |
| size_t |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) |
| { |
| if (name == ConstString("first")) |
| return 0; |
| if (name == ConstString("second")) |
| return 1; |
| return UINT32_MAX; |
| } |
| |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEnd::~LibstdcppMapIteratorSyntheticFrontEnd () |
| {} |
| |
| SyntheticChildrenFrontEnd* |
| lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) |
| { |
| if (!valobj_sp) |
| return NULL; |
| return (new LibstdcppMapIteratorSyntheticFrontEnd(valobj_sp)); |
| } |
| |
| /* |
| (lldb) fr var ibeg --ptr-depth 1 |
| (__gnu_cxx::__normal_iterator<int *, std::vector<int, std::allocator<int> > >) ibeg = { |
| _M_current = 0x00000001001037a0 { |
| *_M_current = 1 |
| } |
| } |
| */ |
| |
| SyntheticChildrenFrontEnd* |
| lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) |
| { |
| static ConstString g_item_name; |
| if (!g_item_name) |
| g_item_name.SetCString("_M_current"); |
| if (!valobj_sp) |
| return NULL; |
| return (new VectorIteratorSyntheticFrontEnd(valobj_sp,g_item_name)); |
| } |