| //===-- DWARFAbbreviationDeclaration.cpp ------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "DWARFAbbreviationDeclaration.h" |
| |
| #include "lldb/Core/dwarf.h" |
| |
| #include "DWARFFormValue.h" |
| |
| using namespace lldb_private; |
| |
| DWARFAbbreviationDeclaration::DWARFAbbreviationDeclaration() : |
| m_code (InvalidCode), |
| m_tag (0), |
| m_has_children (0), |
| m_attributes() |
| { |
| } |
| |
| DWARFAbbreviationDeclaration::DWARFAbbreviationDeclaration(dw_tag_t tag, uint8_t has_children) : |
| m_code (InvalidCode), |
| m_tag (tag), |
| m_has_children (has_children), |
| m_attributes() |
| { |
| } |
| |
| bool |
| DWARFAbbreviationDeclaration::Extract(const DWARFDataExtractor& data, lldb::offset_t* offset_ptr) |
| { |
| return Extract(data, offset_ptr, data.GetULEB128(offset_ptr)); |
| } |
| |
| bool |
| DWARFAbbreviationDeclaration::Extract(const DWARFDataExtractor& data, lldb::offset_t *offset_ptr, dw_uleb128_t code) |
| { |
| m_code = code; |
| m_attributes.clear(); |
| if (m_code) |
| { |
| m_tag = data.GetULEB128(offset_ptr); |
| m_has_children = data.GetU8(offset_ptr); |
| |
| while (data.ValidOffset(*offset_ptr)) |
| { |
| dw_attr_t attr = data.GetULEB128(offset_ptr); |
| dw_form_t form = data.GetULEB128(offset_ptr); |
| |
| if (attr && form) |
| m_attributes.push_back(DWARFAttribute(attr, form)); |
| else |
| break; |
| } |
| |
| return m_tag != 0; |
| } |
| else |
| { |
| m_tag = 0; |
| m_has_children = 0; |
| } |
| |
| return false; |
| } |
| |
| |
| void |
| DWARFAbbreviationDeclaration::Dump(Stream *s) const |
| { |
| // *ostrm_ptr << std::setfill(' ') << std::dec << '[' << std::setw(3) << std::right << m_code << ']' << ' ' << std::setw(30) << std::left << DW_TAG_value_to_name(m_tag) << DW_CHILDREN_value_to_name(m_has_children) << std::endl; |
| // |
| // DWARFAttribute::const_iterator pos; |
| // |
| // for (pos = m_attributes.begin(); pos != m_attributes.end(); ++pos) |
| // *ostrm_ptr << " " << std::setw(29) << std::left << DW_AT_value_to_name(pos->attr()) << ' ' << DW_FORM_value_to_name(pos->form()) << std::endl; |
| // |
| // *ostrm_ptr << std::endl; |
| } |
| |
| |
| |
| bool |
| DWARFAbbreviationDeclaration::IsValid() |
| { |
| return m_code != 0 && m_tag != 0; |
| } |
| |
| |
| |
| uint32_t |
| DWARFAbbreviationDeclaration::FindAttributeIndex(dw_attr_t attr) const |
| { |
| uint32_t i; |
| const uint32_t kNumAttributes = m_attributes.size(); |
| for (i = 0; i < kNumAttributes; ++i) |
| { |
| if (m_attributes[i].get_attr() == attr) |
| return i; |
| } |
| return DW_INVALID_INDEX; |
| } |
| |
| |
| bool |
| DWARFAbbreviationDeclaration::operator == (const DWARFAbbreviationDeclaration& rhs) const |
| { |
| return Tag() == rhs.Tag() |
| && HasChildren() == rhs.HasChildren() |
| && Attributes() == rhs.Attributes(); |
| } |
| |