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//===-- DWARFCompileUnit.h --------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef SymbolFileDWARF_DWARFCompileUnit_h_
#define SymbolFileDWARF_DWARFCompileUnit_h_
#include "DWARFDIE.h"
#include "DWARFDebugInfoEntry.h"
#include "lldb/lldb-enumerations.h"
class NameToDIE;
class SymbolFileDWARF;
class SymbolFileDWARFDwo;
class DWARFCompileUnit {
public:
enum Producer {
eProducerInvalid = 0,
eProducerClang,
eProducerGCC,
eProducerLLVMGCC,
eProcucerOther
};
DWARFCompileUnit(SymbolFileDWARF *dwarf2Data);
~DWARFCompileUnit();
bool Extract(const lldb_private::DWARFDataExtractor &debug_info,
lldb::offset_t *offset_ptr);
size_t ExtractDIEsIfNeeded(bool cu_die_only);
DWARFDIE LookupAddress(const dw_addr_t address);
size_t AppendDIEsWithTag(const dw_tag_t tag,
DWARFDIECollection &matching_dies,
uint32_t depth = UINT32_MAX) const;
void Clear();
bool Verify(lldb_private::Stream *s) const;
void Dump(lldb_private::Stream *s) const;
dw_offset_t GetOffset() const { return m_offset; }
lldb::user_id_t GetID() const;
uint32_t Size() const {
return m_is_dwarf64 ? 23
: 11; /* Size in bytes of the compile unit header */
}
bool ContainsDIEOffset(dw_offset_t die_offset) const {
return die_offset >= GetFirstDIEOffset() &&
die_offset < GetNextCompileUnitOffset();
}
dw_offset_t GetFirstDIEOffset() const { return m_offset + Size(); }
dw_offset_t GetNextCompileUnitOffset() const {
return m_offset + m_length + (m_is_dwarf64 ? 12 : 4);
}
size_t GetDebugInfoSize() const {
return m_length + (m_is_dwarf64 ? 12 : 4) - Size(); /* Size in bytes of the
.debug_info data
associated with this
compile unit. */
}
uint32_t GetLength() const { return m_length; }
uint16_t GetVersion() const { return m_version; }
const DWARFAbbreviationDeclarationSet *GetAbbreviations() const {
return m_abbrevs;
}
dw_offset_t GetAbbrevOffset() const;
uint8_t GetAddressByteSize() const { return m_addr_size; }
dw_addr_t GetBaseAddress() const { return m_base_addr; }
dw_addr_t GetAddrBase() const { return m_addr_base; }
dw_addr_t GetRangesBase() const { return m_ranges_base; }
void SetAddrBase(dw_addr_t addr_base, dw_addr_t ranges_base, dw_offset_t base_obj_offset);
void ClearDIEs(bool keep_compile_unit_die);
void BuildAddressRangeTable(SymbolFileDWARF *dwarf2Data,
DWARFDebugAranges *debug_aranges);
lldb::ByteOrder GetByteOrder() const;
lldb_private::TypeSystem *GetTypeSystem();
DWARFFormValue::FixedFormSizes GetFixedFormSizes();
void SetBaseAddress(dw_addr_t base_addr) { m_base_addr = base_addr; }
DWARFDIE
GetCompileUnitDIEOnly() { return DWARFDIE(this, GetCompileUnitDIEPtrOnly()); }
DWARFDIE
DIE() { return DWARFDIE(this, DIEPtr()); }
void AddDIE(DWARFDebugInfoEntry &die) {
// The average bytes per DIE entry has been seen to be
// around 14-20 so lets pre-reserve half of that since
// we are now stripping the NULL tags.
// Only reserve the memory if we are adding children of
// the main compile unit DIE. The compile unit DIE is always
// the first entry, so if our size is 1, then we are adding
// the first compile unit child DIE and should reserve
// the memory.
if (m_die_array.empty())
m_die_array.reserve(GetDebugInfoSize() / 24);
m_die_array.push_back(die);
}
void AddCompileUnitDIE(DWARFDebugInfoEntry &die);
bool HasDIEsParsed() const { return m_die_array.size() > 1; }
DWARFDIE
GetDIE(dw_offset_t die_offset);
static uint8_t GetAddressByteSize(const DWARFCompileUnit *cu);
static bool IsDWARF64(const DWARFCompileUnit *cu);
static uint8_t GetDefaultAddressSize();
static void SetDefaultAddressSize(uint8_t addr_size);
void *GetUserData() const { return m_user_data; }
void SetUserData(void *d);
bool Supports_DW_AT_APPLE_objc_complete_type();
bool DW_AT_decl_file_attributes_are_invalid();
bool Supports_unnamed_objc_bitfields();
void Index(NameToDIE &func_basenames, NameToDIE &func_fullnames,
NameToDIE &func_methods, NameToDIE &func_selectors,
NameToDIE &objc_class_selectors, NameToDIE &globals,
NameToDIE &types, NameToDIE &namespaces);
const DWARFDebugAranges &GetFunctionAranges();
SymbolFileDWARF *GetSymbolFileDWARF() const { return m_dwarf2Data; }
Producer GetProducer();
uint32_t GetProducerVersionMajor();
uint32_t GetProducerVersionMinor();
uint32_t GetProducerVersionUpdate();
static lldb::LanguageType LanguageTypeFromDWARF(uint64_t val);
lldb::LanguageType GetLanguageType();
bool IsDWARF64() const;
bool GetIsOptimized();
SymbolFileDWARFDwo *GetDwoSymbolFile() const {
return m_dwo_symbol_file.get();
}
dw_offset_t GetBaseObjOffset() const { return m_base_obj_offset; }
protected:
SymbolFileDWARF *m_dwarf2Data;
std::unique_ptr<SymbolFileDWARFDwo> m_dwo_symbol_file;
const DWARFAbbreviationDeclarationSet *m_abbrevs;
void *m_user_data;
DWARFDebugInfoEntry::collection
m_die_array; // The compile unit debug information entry item
std::unique_ptr<DWARFDebugAranges> m_func_aranges_ap; // A table similar to
// the .debug_aranges
// table, but this one
// points to the exact
// DW_TAG_subprogram
// DIEs
dw_addr_t m_base_addr;
dw_offset_t m_offset;
dw_offset_t m_length;
uint16_t m_version;
uint8_t m_addr_size;
Producer m_producer;
uint32_t m_producer_version_major;
uint32_t m_producer_version_minor;
uint32_t m_producer_version_update;
lldb::LanguageType m_language_type;
bool m_is_dwarf64;
lldb_private::LazyBool m_is_optimized;
dw_addr_t m_addr_base; // Value of DW_AT_addr_base
dw_addr_t m_ranges_base; // Value of DW_AT_ranges_base
dw_offset_t m_base_obj_offset; // If this is a dwo compile unit this is the
// offset of the base compile unit in the main
// object file
void ParseProducerInfo();
static void
IndexPrivate(DWARFCompileUnit *dwarf_cu, const lldb::LanguageType cu_language,
const DWARFFormValue::FixedFormSizes &fixed_form_sizes,
const dw_offset_t cu_offset, NameToDIE &func_basenames,
NameToDIE &func_fullnames, NameToDIE &func_methods,
NameToDIE &func_selectors, NameToDIE &objc_class_selectors,
NameToDIE &globals, NameToDIE &types, NameToDIE &namespaces);
private:
const DWARFDebugInfoEntry *GetCompileUnitDIEPtrOnly() {
ExtractDIEsIfNeeded(true);
if (m_die_array.empty())
return NULL;
return &m_die_array[0];
}
const DWARFDebugInfoEntry *DIEPtr() {
ExtractDIEsIfNeeded(false);
if (m_die_array.empty())
return NULL;
return &m_die_array[0];
}
DISALLOW_COPY_AND_ASSIGN(DWARFCompileUnit);
};
#endif // SymbolFileDWARF_DWARFCompileUnit_h_
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