diff options
Diffstat (limited to 'include/lldb/Utility/ProcessStructReader.h')
| -rw-r--r-- | include/lldb/Utility/ProcessStructReader.h | 152 |
1 files changed, 73 insertions, 79 deletions
diff --git a/include/lldb/Utility/ProcessStructReader.h b/include/lldb/Utility/ProcessStructReader.h index bbb497cd51cb..eb5126329bc0 100644 --- a/include/lldb/Utility/ProcessStructReader.h +++ b/include/lldb/Utility/ProcessStructReader.h @@ -1,4 +1,5 @@ -//===---------------------ProcessStructReader.h ------------------*- C++ -*-===// +//===---------------------ProcessStructReader.h ------------------*- C++ +//-*-===// // // The LLVM Compiler Infrastructure // @@ -24,86 +25,79 @@ #include <string> namespace lldb_private { - class ProcessStructReader - { - protected: - struct FieldImpl - { - CompilerType type; - size_t offset; - size_t size; - }; - - std::map<ConstString, FieldImpl> m_fields; - DataExtractor m_data; - lldb::ByteOrder m_byte_order; - size_t m_addr_byte_size; - - public: - ProcessStructReader (Process *process, lldb::addr_t base_addr, CompilerType struct_type) - { - if (!process) - return; - if (base_addr == 0 || base_addr == LLDB_INVALID_ADDRESS) - return; - m_byte_order = process->GetByteOrder(); - m_addr_byte_size = process->GetAddressByteSize(); +class ProcessStructReader { +protected: + struct FieldImpl { + CompilerType type; + size_t offset; + size_t size; + }; - for (size_t idx = 0; idx < struct_type.GetNumFields(); idx++) - { - std::string name; - uint64_t bit_offset; - uint32_t bitfield_bit_size; - bool is_bitfield; - CompilerType field_type = struct_type.GetFieldAtIndex(idx,name,&bit_offset,&bitfield_bit_size,&is_bitfield); - // no support for bitfields in here (yet) - if (is_bitfield) - return; - auto size = field_type.GetByteSize(nullptr); - // no support for things larger than a uint64_t (yet) - if (size > 8) - return; - ConstString const_name = ConstString(name.c_str()); - size_t byte_index = static_cast<size_t>(bit_offset / 8); - m_fields[const_name] = FieldImpl{field_type, byte_index, static_cast<size_t>(size)}; - } - size_t total_size = struct_type.GetByteSize(nullptr); - lldb::DataBufferSP buffer_sp(new DataBufferHeap(total_size,0)); - Error error; - process->ReadMemoryFromInferior(base_addr, - buffer_sp->GetBytes(), - total_size, - error); - if (error.Fail()) - return; - m_data = DataExtractor(buffer_sp,m_byte_order,m_addr_byte_size); - } - - template<typename RetType> - RetType - GetField (ConstString name, RetType fail_value = RetType()) - { - auto iter = m_fields.find(name), end = m_fields.end(); - if (iter == end) - return fail_value; - auto size = iter->second.size; - if (sizeof(RetType) < size) - return fail_value; - lldb::offset_t offset = iter->second.offset; - if (offset + size > m_data.GetByteSize()) - return fail_value; - return (RetType)(m_data.GetMaxU64(&offset, size)); - } + std::map<ConstString, FieldImpl> m_fields; + DataExtractor m_data; + lldb::ByteOrder m_byte_order; + size_t m_addr_byte_size; - size_t - GetOffsetOf(ConstString name, size_t fail_value = SIZE_MAX) - { - auto iter = m_fields.find(name), end = m_fields.end(); - if (iter == end) - return fail_value; - return iter->second.offset; - } - }; +public: + ProcessStructReader(Process *process, lldb::addr_t base_addr, + CompilerType struct_type) { + if (!process) + return; + if (base_addr == 0 || base_addr == LLDB_INVALID_ADDRESS) + return; + m_byte_order = process->GetByteOrder(); + m_addr_byte_size = process->GetAddressByteSize(); + + for (size_t idx = 0; idx < struct_type.GetNumFields(); idx++) { + std::string name; + uint64_t bit_offset; + uint32_t bitfield_bit_size; + bool is_bitfield; + CompilerType field_type = struct_type.GetFieldAtIndex( + idx, name, &bit_offset, &bitfield_bit_size, &is_bitfield); + // no support for bitfields in here (yet) + if (is_bitfield) + return; + auto size = field_type.GetByteSize(nullptr); + // no support for things larger than a uint64_t (yet) + if (size > 8) + return; + ConstString const_name = ConstString(name.c_str()); + size_t byte_index = static_cast<size_t>(bit_offset / 8); + m_fields[const_name] = + FieldImpl{field_type, byte_index, static_cast<size_t>(size)}; + } + size_t total_size = struct_type.GetByteSize(nullptr); + lldb::DataBufferSP buffer_sp(new DataBufferHeap(total_size, 0)); + Error error; + process->ReadMemoryFromInferior(base_addr, buffer_sp->GetBytes(), + total_size, error); + if (error.Fail()) + return; + m_data = DataExtractor(buffer_sp, m_byte_order, m_addr_byte_size); + } + + template <typename RetType> + RetType GetField(ConstString name, RetType fail_value = RetType()) { + auto iter = m_fields.find(name), end = m_fields.end(); + if (iter == end) + return fail_value; + auto size = iter->second.size; + if (sizeof(RetType) < size) + return fail_value; + lldb::offset_t offset = iter->second.offset; + if (offset + size > m_data.GetByteSize()) + return fail_value; + return (RetType)(m_data.GetMaxU64(&offset, size)); + } + + size_t GetOffsetOf(ConstString name, size_t fail_value = SIZE_MAX) { + auto iter = m_fields.find(name), end = m_fields.end(); + if (iter == end) + return fail_value; + return iter->second.offset; + } +}; } #endif // utility_ProcessStructReader_h_ |