81c22f6104
process IDs, and thread IDs, but was mainly needed for for the UserID's for Types so that DWARF with debug map can work flawlessly. With DWARF in .o files the type ID was the DIE offset in the DWARF for the .o file which is not unique across all .o files, so now the SymbolFileDWARFDebugMap class will make the .o file index part (the high 32 bits) of the unique type identifier so it can uniquely identify the types. llvm-svn: 142534
405 lines
10 KiB
C++
405 lines
10 KiB
C++
//===-- Symbol.cpp ----------------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lldb/Symbol/Symbol.h"
|
|
|
|
#include "lldb/Core/Module.h"
|
|
#include "lldb/Core/Section.h"
|
|
#include "lldb/Core/Stream.h"
|
|
#include "lldb/Target/Process.h"
|
|
#include "lldb/Target/Target.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
|
|
Symbol::Symbol() :
|
|
SymbolContextScope (),
|
|
m_uid (UINT32_MAX),
|
|
m_mangled (),
|
|
m_type (eSymbolTypeInvalid),
|
|
m_type_data (0),
|
|
m_type_data_resolved (false),
|
|
m_is_synthetic (false),
|
|
m_is_debug (false),
|
|
m_is_external (false),
|
|
m_size_is_sibling (false),
|
|
m_size_is_synthesized (false),
|
|
m_searched_for_function (false),
|
|
m_addr_range (),
|
|
m_flags ()
|
|
{
|
|
}
|
|
|
|
Symbol::Symbol
|
|
(
|
|
uint32_t symID,
|
|
const char *name,
|
|
bool name_is_mangled,
|
|
SymbolType type,
|
|
bool external,
|
|
bool is_debug,
|
|
bool is_trampoline,
|
|
bool is_artificial,
|
|
const Section* section,
|
|
addr_t offset,
|
|
uint32_t size,
|
|
uint32_t flags
|
|
) :
|
|
SymbolContextScope (),
|
|
m_uid (symID),
|
|
m_mangled (name, name_is_mangled),
|
|
m_type (type),
|
|
m_type_data (0),
|
|
m_type_data_resolved (false),
|
|
m_is_synthetic (is_artificial),
|
|
m_is_debug (is_debug),
|
|
m_is_external (external),
|
|
m_size_is_sibling (false),
|
|
m_size_is_synthesized (false),
|
|
m_searched_for_function (false),
|
|
m_addr_range (section, offset, size),
|
|
m_flags (flags)
|
|
{
|
|
}
|
|
|
|
Symbol::Symbol
|
|
(
|
|
uint32_t symID,
|
|
const char *name,
|
|
bool name_is_mangled,
|
|
SymbolType type,
|
|
bool external,
|
|
bool is_debug,
|
|
bool is_trampoline,
|
|
bool is_artificial,
|
|
const AddressRange &range,
|
|
uint32_t flags
|
|
) :
|
|
SymbolContextScope (),
|
|
m_uid (symID),
|
|
m_mangled (name, name_is_mangled),
|
|
m_type (type),
|
|
m_type_data (0),
|
|
m_type_data_resolved (false),
|
|
m_is_synthetic (is_artificial),
|
|
m_is_debug (is_debug),
|
|
m_is_external (external),
|
|
m_size_is_sibling (false),
|
|
m_size_is_synthesized (false),
|
|
m_searched_for_function (false),
|
|
m_addr_range (range),
|
|
m_flags (flags)
|
|
{
|
|
}
|
|
|
|
Symbol::Symbol(const Symbol& rhs):
|
|
SymbolContextScope (rhs),
|
|
m_uid (rhs.m_uid),
|
|
m_mangled (rhs.m_mangled),
|
|
m_type (rhs.m_type),
|
|
m_type_data (rhs.m_type_data),
|
|
m_type_data_resolved (rhs.m_type_data_resolved),
|
|
m_is_synthetic (rhs.m_is_synthetic),
|
|
m_is_debug (rhs.m_is_debug),
|
|
m_is_external (rhs.m_is_external),
|
|
m_size_is_sibling (rhs.m_size_is_sibling),
|
|
m_size_is_synthesized (false),
|
|
m_searched_for_function (false),
|
|
m_addr_range (rhs.m_addr_range),
|
|
m_flags (rhs.m_flags)
|
|
{
|
|
}
|
|
|
|
const Symbol&
|
|
Symbol::operator= (const Symbol& rhs)
|
|
{
|
|
if (this != &rhs)
|
|
{
|
|
SymbolContextScope::operator= (rhs);
|
|
m_uid = rhs.m_uid;
|
|
m_mangled = rhs.m_mangled;
|
|
m_type = rhs.m_type;
|
|
m_type_data = rhs.m_type_data;
|
|
m_type_data_resolved = rhs.m_type_data_resolved;
|
|
m_is_synthetic = rhs.m_is_synthetic;
|
|
m_is_debug = rhs.m_is_debug;
|
|
m_is_external = rhs.m_is_external;
|
|
m_size_is_sibling = rhs.m_size_is_sibling;
|
|
m_size_is_synthesized = rhs.m_size_is_sibling;
|
|
m_searched_for_function = rhs.m_searched_for_function;
|
|
m_addr_range = rhs.m_addr_range;
|
|
m_flags = rhs.m_flags;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
void
|
|
Symbol::Clear()
|
|
{
|
|
m_uid = UINT32_MAX;
|
|
m_mangled.Clear();
|
|
m_type = eSymbolTypeInvalid;
|
|
m_type_data = 0;
|
|
m_type_data_resolved = false;
|
|
m_is_synthetic = false;
|
|
m_is_debug = false;
|
|
m_is_external = false;
|
|
m_size_is_sibling = false;
|
|
m_size_is_synthesized = false;
|
|
m_searched_for_function = false;
|
|
m_addr_range.Clear();
|
|
m_flags = 0;
|
|
}
|
|
|
|
AddressRange *
|
|
Symbol::GetAddressRangePtr()
|
|
{
|
|
if (m_addr_range.GetBaseAddress().GetSection())
|
|
return &m_addr_range;
|
|
return NULL;
|
|
}
|
|
|
|
const AddressRange *
|
|
Symbol::GetAddressRangePtr() const
|
|
{
|
|
if (m_addr_range.GetBaseAddress().GetSection())
|
|
return &m_addr_range;
|
|
return NULL;
|
|
}
|
|
|
|
uint32_t
|
|
Symbol::GetSiblingIndex() const
|
|
{
|
|
return m_size_is_sibling ? m_addr_range.GetByteSize() : 0;
|
|
}
|
|
|
|
bool
|
|
Symbol::IsTrampoline () const
|
|
{
|
|
return m_type == eSymbolTypeTrampoline;
|
|
}
|
|
|
|
void
|
|
Symbol::GetDescription (Stream *s, lldb::DescriptionLevel level, Target *target) const
|
|
{
|
|
*s << "id = " << (const UserID&)*this << ", name = \"" << m_mangled.GetName() << '"';
|
|
|
|
const Section *section = m_addr_range.GetBaseAddress().GetSection();
|
|
if (section != NULL)
|
|
{
|
|
if (m_addr_range.GetBaseAddress().IsSectionOffset())
|
|
{
|
|
if (m_addr_range.GetByteSize() > 0)
|
|
{
|
|
s->PutCString (", range = ");
|
|
m_addr_range.Dump(s, target, Address::DumpStyleLoadAddress, Address::DumpStyleFileAddress);
|
|
}
|
|
else
|
|
{
|
|
s->PutCString (", address = ");
|
|
m_addr_range.GetBaseAddress().Dump(s, target, Address::DumpStyleLoadAddress, Address::DumpStyleFileAddress);
|
|
}
|
|
}
|
|
else
|
|
s->Printf (", value = 0x%16.16llx", m_addr_range.GetBaseAddress().GetOffset());
|
|
}
|
|
else
|
|
{
|
|
if (m_size_is_sibling)
|
|
s->Printf (", sibling = %5llu", m_addr_range.GetBaseAddress().GetOffset());
|
|
else
|
|
s->Printf (", value = 0x%16.16llx", m_addr_range.GetBaseAddress().GetOffset());
|
|
}
|
|
}
|
|
|
|
void
|
|
Symbol::Dump(Stream *s, Target *target, uint32_t index) const
|
|
{
|
|
// s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
|
|
// s->Indent();
|
|
// s->Printf("Symbol[%5u] %6u %c%c %-12s ",
|
|
s->Printf("[%5u] %6u %c%c%c %-12s ",
|
|
index,
|
|
GetID(),
|
|
m_is_debug ? 'D' : ' ',
|
|
m_is_synthetic ? 'S' : ' ',
|
|
m_is_external ? 'X' : ' ',
|
|
GetTypeAsString());
|
|
|
|
const Section *section = m_addr_range.GetBaseAddress().GetSection();
|
|
if (section != NULL)
|
|
{
|
|
if (!m_addr_range.GetBaseAddress().Dump(s, NULL, Address::DumpStyleFileAddress))
|
|
s->Printf("%*s", 18, "");
|
|
|
|
s->PutChar(' ');
|
|
|
|
if (!m_addr_range.GetBaseAddress().Dump(s, target, Address::DumpStyleLoadAddress))
|
|
s->Printf("%*s", 18, "");
|
|
|
|
const char *format = m_size_is_sibling ?
|
|
" Sibling -> [%5llu] 0x%8.8x %s\n":
|
|
" 0x%16.16llx 0x%8.8x %s\n";
|
|
s->Printf( format,
|
|
m_addr_range.GetByteSize(),
|
|
m_flags,
|
|
m_mangled.GetName().AsCString(""));
|
|
}
|
|
else
|
|
{
|
|
const char *format = m_size_is_sibling ?
|
|
"0x%16.16llx Sibling -> [%5llu] 0x%8.8x %s\n":
|
|
"0x%16.16llx 0x%16.16llx 0x%8.8x %s\n";
|
|
s->Printf( format,
|
|
m_addr_range.GetBaseAddress().GetOffset(),
|
|
m_addr_range.GetByteSize(),
|
|
m_flags,
|
|
m_mangled.GetName().AsCString(""));
|
|
}
|
|
}
|
|
|
|
uint32_t
|
|
Symbol::GetPrologueByteSize ()
|
|
{
|
|
if (m_type == eSymbolTypeCode)
|
|
{
|
|
if (!m_type_data_resolved)
|
|
{
|
|
m_type_data_resolved = true;
|
|
Module *module = m_addr_range.GetBaseAddress().GetModule();
|
|
SymbolContext sc;
|
|
if (module && module->ResolveSymbolContextForAddress (m_addr_range.GetBaseAddress(),
|
|
eSymbolContextLineEntry,
|
|
sc))
|
|
{
|
|
m_type_data = sc.line_entry.range.GetByteSize();
|
|
}
|
|
else
|
|
{
|
|
// TODO: expose something in Process to figure out the
|
|
// size of a function prologue.
|
|
}
|
|
}
|
|
return m_type_data;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
Symbol::SetValue(addr_t value)
|
|
{
|
|
m_addr_range.GetBaseAddress().SetSection(NULL);
|
|
m_addr_range.GetBaseAddress().SetOffset(value);
|
|
}
|
|
|
|
|
|
bool
|
|
Symbol::Compare(const ConstString& name, SymbolType type) const
|
|
{
|
|
if (m_type == eSymbolTypeAny || m_type == type)
|
|
return m_mangled.GetMangledName() == name || m_mangled.GetDemangledName() == name;
|
|
return false;
|
|
}
|
|
|
|
#define ENUM_TO_CSTRING(x) case eSymbolType##x: return #x;
|
|
|
|
const char *
|
|
Symbol::GetTypeAsString() const
|
|
{
|
|
switch (m_type)
|
|
{
|
|
ENUM_TO_CSTRING(Invalid);
|
|
ENUM_TO_CSTRING(Absolute);
|
|
ENUM_TO_CSTRING(Extern);
|
|
ENUM_TO_CSTRING(Code);
|
|
ENUM_TO_CSTRING(Data);
|
|
ENUM_TO_CSTRING(Trampoline);
|
|
ENUM_TO_CSTRING(Runtime);
|
|
ENUM_TO_CSTRING(Exception);
|
|
ENUM_TO_CSTRING(SourceFile);
|
|
ENUM_TO_CSTRING(HeaderFile);
|
|
ENUM_TO_CSTRING(ObjectFile);
|
|
ENUM_TO_CSTRING(CommonBlock);
|
|
ENUM_TO_CSTRING(Block);
|
|
ENUM_TO_CSTRING(Local);
|
|
ENUM_TO_CSTRING(Param);
|
|
ENUM_TO_CSTRING(Variable);
|
|
ENUM_TO_CSTRING(VariableType);
|
|
ENUM_TO_CSTRING(LineEntry);
|
|
ENUM_TO_CSTRING(LineHeader);
|
|
ENUM_TO_CSTRING(ScopeBegin);
|
|
ENUM_TO_CSTRING(ScopeEnd);
|
|
ENUM_TO_CSTRING(Additional);
|
|
ENUM_TO_CSTRING(Compiler);
|
|
ENUM_TO_CSTRING(Instrumentation);
|
|
ENUM_TO_CSTRING(Undefined);
|
|
default:
|
|
break;
|
|
}
|
|
return "<unknown SymbolType>";
|
|
}
|
|
|
|
|
|
void
|
|
Symbol::CalculateSymbolContext (SymbolContext *sc)
|
|
{
|
|
// Symbols can reconstruct the symbol and the module in the symbol context
|
|
sc->symbol = this;
|
|
const AddressRange *range = GetAddressRangePtr();
|
|
if (range)
|
|
{
|
|
Module *module = range->GetBaseAddress().GetModule ();
|
|
if (module)
|
|
{
|
|
sc->module_sp = module;
|
|
return;
|
|
}
|
|
}
|
|
sc->module_sp.reset();
|
|
}
|
|
|
|
Module *
|
|
Symbol::CalculateSymbolContextModule ()
|
|
{
|
|
const AddressRange *range = GetAddressRangePtr();
|
|
if (range)
|
|
return range->GetBaseAddress().GetModule ();
|
|
return NULL;
|
|
}
|
|
|
|
Symbol *
|
|
Symbol::CalculateSymbolContextSymbol ()
|
|
{
|
|
return this;
|
|
}
|
|
|
|
|
|
void
|
|
Symbol::DumpSymbolContext (Stream *s)
|
|
{
|
|
bool dumped_module = false;
|
|
const AddressRange *range = GetAddressRangePtr();
|
|
if (range)
|
|
{
|
|
Module *module = range->GetBaseAddress().GetModule ();
|
|
if (module)
|
|
{
|
|
dumped_module = true;
|
|
module->DumpSymbolContext(s);
|
|
}
|
|
}
|
|
if (dumped_module)
|
|
s->PutCString(", ");
|
|
|
|
s->Printf("Symbol{0x%8.8x}", GetID());
|
|
}
|
|
|
|
|