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//===-- DWARFDIE.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_DWARFDIE_h_
#define SymbolFileDWARF_DWARFDIE_h_
#include "lldb/Core/dwarf.h"
#include "lldb/lldb-types.h"
struct DIERef;
class DWARFASTParser;
class DWARFAttributes;
class DWARFCompileUnit;
class DWARFDebugInfoEntry;
class DWARFDeclContext;
class DWARFDIECollection;
class SymbolFileDWARF;
class DWARFDIE {
public:
DWARFDIE() : m_cu(nullptr), m_die(nullptr) {}
DWARFDIE(DWARFCompileUnit *cu, DWARFDebugInfoEntry *die)
: m_cu(cu), m_die(die) {}
DWARFDIE(const DWARFCompileUnit *cu, DWARFDebugInfoEntry *die)
: m_cu(const_cast<DWARFCompileUnit *>(cu)), m_die(die) {}
DWARFDIE(DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
: m_cu(cu), m_die(const_cast<DWARFDebugInfoEntry *>(die)) {}
DWARFDIE(const DWARFCompileUnit *cu, const DWARFDebugInfoEntry *die)
: m_cu(const_cast<DWARFCompileUnit *>(cu)),
m_die(const_cast<DWARFDebugInfoEntry *>(die)) {}
//----------------------------------------------------------------------
// Tests
//----------------------------------------------------------------------
explicit operator bool() const { return IsValid(); }
bool IsValid() const { return m_cu && m_die; }
bool IsStructOrClass() const;
bool HasChildren() const;
bool Supports_DW_AT_APPLE_objc_complete_type() const;
//----------------------------------------------------------------------
// Accessors
//----------------------------------------------------------------------
SymbolFileDWARF *GetDWARF() const;
DWARFCompileUnit *GetCU() const { return m_cu; }
DWARFDebugInfoEntry *GetDIE() const { return m_die; }
DIERef GetDIERef() const;
lldb_private::TypeSystem *GetTypeSystem() const;
DWARFASTParser *GetDWARFParser() const;
void Set(DWARFCompileUnit *cu, DWARFDebugInfoEntry *die) {
if (cu && die) {
m_cu = cu;
m_die = die;
} else {
Clear();
}
}
void Clear() {
m_cu = nullptr;
m_die = nullptr;
}
lldb::ModuleSP GetContainingDWOModule() const;
DWARFDIE
GetContainingDWOModuleDIE() const;
//----------------------------------------------------------------------
// Accessing information about a DIE
//----------------------------------------------------------------------
dw_tag_t Tag() const;
const char *GetTagAsCString() const;
dw_offset_t GetOffset() const;
dw_offset_t GetCompileUnitRelativeOffset() const;
//----------------------------------------------------------------------
// Get the LLDB user ID for this DIE. This is often just the DIE offset,
// but it might have a SymbolFileDWARF::GetID() in the high 32 bits if
// we are doing Darwin DWARF in .o file, or DWARF stand alone debug
// info.
//----------------------------------------------------------------------
lldb::user_id_t GetID() const;
const char *GetName() const;
const char *GetMangledName() const;
const char *GetPubname() const;
const char *GetQualifiedName(std::string &storage) const;
lldb::LanguageType GetLanguage() const;
lldb::ModuleSP GetModule() const;
lldb_private::CompileUnit *GetLLDBCompileUnit() const;
lldb_private::Type *ResolveType() const;
//----------------------------------------------------------------------
// Resolve a type by UID using this DIE's DWARF file
//----------------------------------------------------------------------
lldb_private::Type *ResolveTypeUID(const DIERef &die_ref) const;
//----------------------------------------------------------------------
// Functions for obtaining DIE relations and references
//----------------------------------------------------------------------
DWARFDIE
GetParent() const;
DWARFDIE
GetFirstChild() const;
DWARFDIE
GetSibling() const;
DWARFDIE
GetReferencedDIE(const dw_attr_t attr) const;
//----------------------------------------------------------------------
// Get a another DIE from the same DWARF file as this DIE. This will
// check the current DIE's compile unit first to see if "die_offset" is
// in the same compile unit, and fall back to checking the DWARF file.
//----------------------------------------------------------------------
DWARFDIE
GetDIE(dw_offset_t die_offset) const;
DWARFDIE
LookupDeepestBlock(lldb::addr_t file_addr) const;
DWARFDIE
GetParentDeclContextDIE() const;
//----------------------------------------------------------------------
// DeclContext related functions
//----------------------------------------------------------------------
void GetDeclContextDIEs(DWARFDIECollection &decl_context_dies) const;
void GetDWARFDeclContext(DWARFDeclContext &dwarf_decl_ctx) const;
void GetDWOContext(std::vector<lldb_private::CompilerContext> &context) const;
//----------------------------------------------------------------------
// Getting attribute values from the DIE.
//
// GetAttributeValueAsXXX() functions should only be used if you are
// looking for one or two attributes on a DIE. If you are trying to
// parse all attributes, use GetAttributes (...) instead
//----------------------------------------------------------------------
const char *GetAttributeValueAsString(const dw_attr_t attr,
const char *fail_value) const;
uint64_t GetAttributeValueAsUnsigned(const dw_attr_t attr,
uint64_t fail_value) const;
int64_t GetAttributeValueAsSigned(const dw_attr_t attr,
int64_t fail_value) const;
uint64_t GetAttributeValueAsReference(const dw_attr_t attr,
uint64_t fail_value) const;
DWARFDIE
GetAttributeValueAsReferenceDIE(const dw_attr_t attr) const;
uint64_t GetAttributeValueAsAddress(const dw_attr_t attr,
uint64_t fail_value) const;
size_t GetAttributes(DWARFAttributes &attributes, uint32_t depth = 0) const;
bool GetDIENamesAndRanges(const char *&name, const char *&mangled,
DWARFRangeList &ranges, int &decl_file,
int &decl_line, int &decl_column, int &call_file,
int &call_line, int &call_column,
lldb_private::DWARFExpression *frame_base) const;
//----------------------------------------------------------------------
// Pretty printing
//----------------------------------------------------------------------
void Dump(lldb_private::Stream *s, const uint32_t recurse_depth) const;
lldb_private::CompilerDecl GetDecl() const;
lldb_private::CompilerDeclContext GetDeclContext() const;
lldb_private::CompilerDeclContext GetContainingDeclContext() const;
protected:
DWARFCompileUnit *m_cu;
DWARFDebugInfoEntry *m_die;
};
bool operator==(const DWARFDIE &lhs, const DWARFDIE &rhs);
bool operator!=(const DWARFDIE &lhs, const DWARFDIE &rhs);
#endif // SymbolFileDWARF_DWARFDIE_h_
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