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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/lldb-types.h"
#include "lldb/Core/dwarf.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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