forked from OSchip/llvm-project
330 lines
14 KiB
C++
330 lines
14 KiB
C++
//===-- DWARFDebugInfoEntry.h -----------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_DWARFDebugInfoEntry_h_
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#define liblldb_DWARFDebugInfoEntry_h_
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#include "SymbolFileDWARF.h"
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#include "llvm/ADT/SmallVector.h"
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#include "DWARFAbbreviationDeclaration.h"
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#include "DWARFDebugRanges.h"
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#include <vector>
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#include <map>
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#include <set>
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typedef std::map<const DWARFDebugInfoEntry*, dw_addr_t> DIEToAddressMap;
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typedef DIEToAddressMap::iterator DIEToAddressMapIter;
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typedef DIEToAddressMap::const_iterator DIEToAddressMapConstIter;
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typedef std::map<dw_addr_t, const DWARFDebugInfoEntry*> AddressToDIEMap;
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typedef AddressToDIEMap::iterator AddressToDIEMapIter;
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typedef AddressToDIEMap::const_iterator AddressToDIEMapConstIter;
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typedef std::map<dw_offset_t, dw_offset_t> DIEToDIEMap;
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typedef DIEToDIEMap::iterator DIEToDIEMapIter;
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typedef DIEToDIEMap::const_iterator DIEToDIEMapConstIter;
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typedef std::map<uint32_t, const DWARFDebugInfoEntry*> UInt32ToDIEMap;
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typedef UInt32ToDIEMap::iterator UInt32ToDIEMapIter;
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typedef UInt32ToDIEMap::const_iterator UInt32ToDIEMapConstIter;
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typedef std::multimap<uint32_t, const DWARFDebugInfoEntry*> UInt32ToDIEMMap;
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typedef UInt32ToDIEMMap::iterator UInt32ToDIEMMapIter;
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typedef UInt32ToDIEMMap::const_iterator UInt32ToDIEMMapConstIter;
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class DWARFDebugInfoEntry
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{
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public:
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typedef std::vector<DWARFDebugInfoEntry> collection;
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typedef collection::iterator iterator;
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typedef collection::const_iterator const_iterator;
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typedef std::vector<dw_offset_t> offset_collection;
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typedef offset_collection::iterator offset_collection_iterator;
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typedef offset_collection::const_iterator offset_collection_const_iterator;
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class Attributes
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{
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public:
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Attributes();
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~Attributes();
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void Append(const DWARFCompileUnit *cu, dw_offset_t attr_die_offset, dw_attr_t attr, dw_form_t form);
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const DWARFCompileUnit * CompileUnitAtIndex(uint32_t i) const { return m_infos[i].cu; }
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dw_offset_t DIEOffsetAtIndex(uint32_t i) const { return m_infos[i].die_offset; }
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dw_attr_t AttributeAtIndex(uint32_t i) const { return m_infos[i].attr; }
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dw_attr_t FormAtIndex(uint32_t i) const { return m_infos[i].form; }
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bool ExtractFormValueAtIndex (SymbolFileDWARF* dwarf2Data, uint32_t i, DWARFFormValue &form_value) const;
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uint64_t FormValueAsUnsignedAtIndex (SymbolFileDWARF* dwarf2Data, uint32_t i, uint64_t fail_value) const;
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uint32_t FindAttributeIndex(dw_attr_t attr) const;
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bool ContainsAttribute(dw_attr_t attr) const;
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bool RemoveAttribute(dw_attr_t attr);
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void Clear() { m_infos.clear(); }
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uint32_t Size() const { return m_infos.size(); }
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protected:
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struct Info
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{
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const DWARFCompileUnit *cu; // Keep the compile unit with each attribute in case we have DW_FORM_ref_addr values
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dw_offset_t die_offset;
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dw_attr_t attr;
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dw_form_t form;
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};
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typedef llvm::SmallVector<Info, 32> collection;
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collection m_infos;
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};
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struct CompareState
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{
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CompareState() :
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die_offset_pairs()
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{
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assert(sizeof(dw_offset_t)*2 == sizeof(uint64_t));
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}
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bool AddTypePair(dw_offset_t a, dw_offset_t b)
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{
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uint64_t a_b_offsets = (uint64_t)a << 32 | (uint64_t)b;
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// Return true if this type was inserted, false otherwise
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return die_offset_pairs.insert(a_b_offsets).second;
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}
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std::set< uint64_t > die_offset_pairs;
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};
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DWARFDebugInfoEntry():
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m_offset (DW_INVALID_OFFSET),
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m_parent_idx (0),
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m_sibling_idx (0),
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m_abbrevDecl (NULL)
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{
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}
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void BuildAddressRangeTable(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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DWARFDebugAranges* debug_aranges) const;
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void BuildFunctionAddressRangeTable(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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DWARFDebugAranges* debug_aranges) const;
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bool FastExtract(
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const lldb_private::DataExtractor& debug_info_data,
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const DWARFCompileUnit* cu,
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const uint8_t *fixed_form_sizes,
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dw_offset_t* offset_ptr);
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bool Extract(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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dw_offset_t* offset_ptr);
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bool LookupAddress(
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const dw_addr_t address,
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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DWARFDebugInfoEntry** function_die,
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DWARFDebugInfoEntry** block_die);
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size_t GetAttributes(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const uint8_t *fixed_form_sizes,
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DWARFDebugInfoEntry::Attributes& attrs,
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uint32_t curr_depth = 0) const; // "curr_depth" for internal use only, don't set this yourself!!!
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dw_offset_t GetAttributeValue(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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DWARFFormValue& formValue,
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dw_offset_t* end_attr_offset_ptr = NULL) const;
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const char* GetAttributeValueAsString(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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const char* fail_value) const;
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uint64_t GetAttributeValueAsUnsigned(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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uint64_t fail_value) const;
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uint64_t GetAttributeValueAsReference(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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uint64_t fail_value) const;
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int64_t GetAttributeValueAsSigned(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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int64_t fail_value) const;
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dw_offset_t GetAttributeValueAsLocation(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_attr_t attr,
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lldb_private::DataExtractor& data,
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uint32_t &block_size) const;
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const char* GetName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu) const;
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const char* GetMangledName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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bool substitute_name_allowed = true) const;
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const char* GetPubname(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu) const;
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static bool GetName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_offset_t die_offset,
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lldb_private::Stream *s);
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static bool AppendTypeName(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const dw_offset_t die_offset,
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lldb_private::Stream *s);
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// static int Compare(
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// SymbolFileDWARF* dwarf2Data,
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// dw_offset_t a_die_offset,
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// dw_offset_t b_die_offset,
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// CompareState &compare_state,
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// bool compare_siblings,
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// bool compare_children);
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//
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// static int Compare(
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// SymbolFileDWARF* dwarf2Data,
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// DWARFCompileUnit* a_cu, const DWARFDebugInfoEntry* a_die,
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// DWARFCompileUnit* b_cu, const DWARFDebugInfoEntry* b_die,
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// CompareState &compare_state,
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// bool compare_siblings,
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// bool compare_children);
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static bool OffsetLessThan (
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const DWARFDebugInfoEntry& a,
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const DWARFDebugInfoEntry& b);
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bool AppendDependentDIES(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const bool add_children,
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DWARFDIECollection& die_offsets) const;
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void Dump(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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lldb_private::Stream *s,
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uint32_t recurse_depth) const;
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void DumpAncestry(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const DWARFDebugInfoEntry* oldest,
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lldb_private::Stream *s,
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uint32_t recurse_depth) const;
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static void DumpAttribute(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const lldb_private::DataExtractor& debug_info_data,
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uint32_t* offset_ptr,
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lldb_private::Stream *s,
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dw_attr_t attr,
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dw_form_t form);
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bool GetDIENamesAndRanges(
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SymbolFileDWARF* dwarf2Data,
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const DWARFCompileUnit* cu,
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const char * &name,
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const char * &mangled,
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DWARFDebugRanges::RangeList& rangeList,
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int& decl_file,
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int& decl_line,
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int& decl_column,
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int& call_file,
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int& call_line,
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int& call_column,
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lldb_private::DWARFExpression *frame_base = NULL) const;
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dw_tag_t Tag() const { return m_abbrevDecl ? m_abbrevDecl->Tag() : 0; }
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bool IsNULL() const { return m_abbrevDecl == NULL; }
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dw_offset_t GetOffset() const { return m_offset; }
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void SetOffset(dw_offset_t offset) { m_offset = offset; }
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uint32_t NumAttributes() const { return m_abbrevDecl ? m_abbrevDecl->NumAttributes() : 0; }
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bool HasChildren() const { return m_abbrevDecl != NULL && m_abbrevDecl->HasChildren(); }
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// We know we are kept in a vector of contiguous entries, so we know
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// our parent will be some index behind "this".
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DWARFDebugInfoEntry* GetParent() { return m_parent_idx > 0 ? this - m_parent_idx : NULL; }
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const DWARFDebugInfoEntry* GetParent() const { return m_parent_idx > 0 ? this - m_parent_idx : NULL; }
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// We know we are kept in a vector of contiguous entries, so we know
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// our sibling will be some index after "this".
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DWARFDebugInfoEntry* GetSibling() { return m_sibling_idx > 0 ? this + m_sibling_idx : NULL; }
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const DWARFDebugInfoEntry* GetSibling() const { return m_sibling_idx > 0 ? this + m_sibling_idx : NULL; }
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// We know we are kept in a vector of contiguous entries, so we know
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// we don't need to store our child pointer, if we have a child it will
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// be the next entry in the list...
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DWARFDebugInfoEntry* GetFirstChild() { return HasChildren() ? this + 1 : NULL; }
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const DWARFDebugInfoEntry* GetFirstChild() const { return HasChildren() ? this + 1 : NULL; }
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void
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SetParent (DWARFDebugInfoEntry* parent)
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{
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if (parent)
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{
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// We know we are kept in a vector of contiguous entries, so we know
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// our parent will be some index behind "this".
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m_parent_idx = this - parent;
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}
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else
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m_parent_idx = 0;
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}
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void
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SetSibling (DWARFDebugInfoEntry* sibling)
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{
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if (sibling)
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{
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// We know we are kept in a vector of contiguous entries, so we know
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// our sibling will be some index after "this".
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m_sibling_idx = sibling - this;
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sibling->SetParent(GetParent());
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}
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else
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m_sibling_idx = 0;
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}
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const DWARFAbbreviationDeclaration* GetAbbreviationDeclarationPtr() const { return m_abbrevDecl; }
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protected:
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dw_offset_t m_offset; // Offset within the .debug_info of the start of this entry
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uint32_t m_parent_idx; // How many to subtract from "this" to get the parent. If zero this die has no parent
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uint32_t m_sibling_idx; // How many to add to "this" to get the sibling.
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const DWARFAbbreviationDeclaration* m_abbrevDecl;
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};
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#endif // liblldb_DWARFDebugInfoEntry_h_
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