diff options
Diffstat (limited to 'lldb/source/DataFormatters/CXXFormatterFunctions.cpp')
| -rw-r--r-- | lldb/source/DataFormatters/CXXFormatterFunctions.cpp | 323 |
1 files changed, 37 insertions, 286 deletions
diff --git a/lldb/source/DataFormatters/CXXFormatterFunctions.cpp b/lldb/source/DataFormatters/CXXFormatterFunctions.cpp index 8ea06b08503..156fd7ed726 100644 --- a/lldb/source/DataFormatters/CXXFormatterFunctions.cpp +++ b/lldb/source/DataFormatters/CXXFormatterFunctions.cpp @@ -550,10 +550,11 @@ lldb_private::formatters::LibcxxStringSummaryProvider (ValueObject& valobj, Stre if (!location_sp) return false; Error error; - location_sp->ReadPointedString(stream, - error, - 0, // max length is decided by the settings - false); // do not honor array (terminates on first 0 byte even for a char[]) + if (location_sp->ReadPointedString(stream, + error, + 0, // max length is decided by the settings + false) == 0) // do not honor array (terminates on first 0 byte even for a char[]) + stream.Printf("\"\""); // if nothing was read, print an empty string return error.Success(); } @@ -1073,320 +1074,70 @@ lldb_private::formatters::ExtractIndexFromString (const char* item_name) return idx; } -lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::LibcxxVectorBoolSyntheticFrontEnd (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::LibcxxVectorBoolSyntheticFrontEnd::CalculateNumChildren () -{ - return m_count; -} - -lldb::ValueObjectSP -lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::GetChildAtIndex (size_t idx) +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::VectorIteratorSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp, + ConstString item_name) : +SyntheticChildrenFrontEnd(*valobj_sp.get()), +m_exe_ctx_ref(), +m_item_name(item_name), +m_item_sp() { - 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; + if (valobj_sp) + Update(); } -/*(std::__1::vector<std::__1::allocator<bool> >) vBool = { - __begin_ = 0x00000001001000e0 - __size_ = 56 - __cap_alloc_ = { - std::__1::__libcpp_compressed_pair_imp<unsigned long, std::__1::allocator<unsigned long> > = { - __first_ = 1 - } - } -}*/ - bool -lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::Update() +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::Update() { ValueObjectSP valobj_sp = m_backend.GetSP(); if (!valobj_sp) return false; - if (valobj_sp->IsDynamic()) - valobj_sp = valobj_sp->GetStaticValue(); + if (!valobj_sp) return false; - m_exe_ctx_ref = valobj_sp->GetExecutionContextRef(); - ValueObjectSP size_sp(valobj_sp->GetChildMemberWithName(ConstString("__size_"), true)); - if (!size_sp) - return false; - m_count = size_sp->GetValueAsUnsigned(0); - if (!m_count) - return true; - ValueObjectSP begin_sp(valobj_sp->GetChildMemberWithName(ConstString("__begin_"), true)); - if (!begin_sp) - { - m_count = 0; + + ValueObjectSP item_ptr(valobj_sp->GetChildMemberWithName(m_item_name,true)); + if (!item_ptr) return false; - } - m_base_data_address = begin_sp->GetValueAsUnsigned(0); - if (!m_base_data_address) - { - m_count = 0; + if (item_ptr->GetValueAsUnsigned(0) == 0) return false; - } - return true; -} - -bool -lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::MightHaveChildren () -{ - return true; -} - -size_t -lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEnd::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::LibcxxVectorBoolSyntheticFrontEnd::~LibcxxVectorBoolSyntheticFrontEnd () -{} - -SyntheticChildrenFrontEnd* -lldb_private::formatters::LibcxxVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) -{ - if (!valobj_sp) - return NULL; - return (new LibcxxVectorBoolSyntheticFrontEnd(valobj_sp)); -} - -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); + Error err; + m_exe_ctx_ref = valobj_sp->GetExecutionContextRef(); + m_item_sp = ValueObject::CreateValueObjectFromAddress("item", item_ptr->GetValueAsUnsigned(0), m_exe_ctx_ref, ClangASTType(item_ptr->GetClangAST(),ClangASTType::GetPointeeType(item_ptr->GetClangType()))); + if (err.Fail()) + m_item_sp.reset(); + return (m_item_sp.get() != NULL); } size_t -lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::CalculateNumChildren () +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::CalculateNumChildren () { - return m_count; + return 1; } lldb::ValueObjectSP -lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetChildAtIndex (size_t idx) +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::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->IsDynamic()) - valobj_sp = valobj_sp->GetStaticValue(); - 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; + if (idx == 0) + return m_item_sp; + return lldb::ValueObjectSP(); } bool -lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::MightHaveChildren () +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::MightHaveChildren () { return true; } size_t -lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::GetIndexOfChildWithName (const ConstString &name) +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::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; + if (name == ConstString("item")) + return 0; + return UINT32_MAX; } -lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEnd::~LibstdcppVectorBoolSyntheticFrontEnd () -{} - -SyntheticChildrenFrontEnd* -lldb_private::formatters::LibstdcppVectorBoolSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp) +lldb_private::formatters::VectorIteratorSyntheticFrontEnd::~VectorIteratorSyntheticFrontEnd () { - if (!valobj_sp) - return NULL; - return (new LibstdcppVectorBoolSyntheticFrontEnd(valobj_sp)); } template bool |
