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llvm-project/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp

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//===-- SymbolFileDWARFDebugMap.cpp ----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "SymbolFileDWARFDebugMap.h"
#include "DWARFDebugAranges.h"
#include "lldb/Core/RangeMap.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/Section.h"
//#define DEBUG_OSO_DMAP // DO NOT CHECKIN WITH THIS NOT COMMENTED OUT
#if defined(DEBUG_OSO_DMAP)
#include "lldb/Core/StreamFile.h"
#endif
#include "lldb/Core/Timer.h"
#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
#include "lldb/Symbol/CompileUnit.h"
#include "lldb/Symbol/LineTable.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Symbol/VariableList.h"
#include "LogChannelDWARF.h"
#include "SymbolFileDWARF.h"
using namespace lldb;
using namespace lldb_private;
// Subclass lldb_private::Module so we can intercept the "Module::GetObjectFile()"
// (so we can fixup the object file sections) and also for "Module::GetSymbolVendor()"
// (so we can fixup the symbol file id.
const SymbolFileDWARFDebugMap::FileRangeMap &
SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap(SymbolFileDWARFDebugMap *exe_symfile)
{
if (file_range_map_valid)
return file_range_map;
file_range_map_valid = true;
Module *oso_module = exe_symfile->GetModuleByCompUnitInfo (this);
if (!oso_module)
return file_range_map;
ObjectFile *oso_objfile = oso_module->GetObjectFile();
if (!oso_objfile)
return file_range_map;
Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP));
if (log)
{
ConstString object_name (oso_module->GetObjectName());
log->Printf("%p: SymbolFileDWARFDebugMap::CompileUnitInfo::GetFileRangeMap ('%s')",
this,
oso_module->GetSpecificationDescription().c_str());
}
std::vector<SymbolFileDWARFDebugMap::CompileUnitInfo *> cu_infos;
if (exe_symfile->GetCompUnitInfosForModule(oso_module, cu_infos))
{
for (auto comp_unit_info : cu_infos)
{
Symtab *exe_symtab = exe_symfile->GetObjectFile()->GetSymtab();
ModuleSP oso_module_sp (oso_objfile->GetModule());
Symtab *oso_symtab = oso_objfile->GetSymtab();
///const uint32_t fun_resolve_flags = SymbolContext::Module | eSymbolContextCompUnit | eSymbolContextFunction;
//SectionList *oso_sections = oso_objfile->Sections();
// Now we need to make sections that map from zero based object
// file addresses to where things eneded up in the main executable.
assert (comp_unit_info->first_symbol_index != UINT32_MAX);
// End index is one past the last valid symbol index
const uint32_t oso_end_idx = comp_unit_info->last_symbol_index + 1;
for (uint32_t idx = comp_unit_info->first_symbol_index + 2; // Skip the N_SO and N_OSO
idx < oso_end_idx;
++idx)
{
Symbol *exe_symbol = exe_symtab->SymbolAtIndex(idx);
if (exe_symbol)
{
if (exe_symbol->IsDebug() == false)
continue;
switch (exe_symbol->GetType())
{
default:
break;
case eSymbolTypeCode:
{
// For each N_FUN, or function that we run into in the debug map
// we make a new section that we add to the sections found in the
// .o file. This new section has the file address set to what the
// addresses are in the .o file, and the load address is adjusted
// to match where it ended up in the final executable! We do this
// before we parse any dwarf info so that when it goes get parsed
// all section/offset addresses that get registered will resolve
// correctly to the new addresses in the main executable.
// First we find the original symbol in the .o file's symbol table
Symbol *oso_fun_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled),
eSymbolTypeCode,
Symtab::eDebugNo,
Symtab::eVisibilityAny);
if (oso_fun_symbol)
{
// Add the inverse OSO file address to debug map entry mapping
exe_symfile->AddOSOFileRange (this,
exe_symbol->GetAddress().GetFileAddress(),
oso_fun_symbol->GetAddress().GetFileAddress(),
std::min<addr_t>(exe_symbol->GetByteSize(), oso_fun_symbol->GetByteSize()));
}
}
break;
case eSymbolTypeData:
{
// For each N_GSYM we remap the address for the global by making
// a new section that we add to the sections found in the .o file.
// This new section has the file address set to what the
// addresses are in the .o file, and the load address is adjusted
// to match where it ended up in the final executable! We do this
// before we parse any dwarf info so that when it goes get parsed
// all section/offset addresses that get registered will resolve
// correctly to the new addresses in the main executable. We
// initially set the section size to be 1 byte, but will need to
// fix up these addresses further after all globals have been
// parsed to span the gaps, or we can find the global variable
// sizes from the DWARF info as we are parsing.
// Next we find the non-stab entry that corresponds to the N_GSYM in the .o file
Symbol *oso_gsym_symbol = oso_symtab->FindFirstSymbolWithNameAndType (exe_symbol->GetMangled().GetName(Mangled::ePreferMangled),
eSymbolTypeData,
Symtab::eDebugNo,
Symtab::eVisibilityAny);
if (exe_symbol && oso_gsym_symbol &&
exe_symbol->ValueIsAddress() &&
oso_gsym_symbol->ValueIsAddress())
{
// Add the inverse OSO file address to debug map entry mapping
exe_symfile->AddOSOFileRange (this,
exe_symbol->GetAddress().GetFileAddress(),
oso_gsym_symbol->GetAddress().GetFileAddress(),
std::min<addr_t>(exe_symbol->GetByteSize(), oso_gsym_symbol->GetByteSize()));
}
}
break;
}
}
}
exe_symfile->FinalizeOSOFileRanges (this);
// We don't need the symbols anymore for the .o files
oso_objfile->ClearSymtab();
}
}
return file_range_map;
}
class DebugMapModule : public Module
{
public:
DebugMapModule (const ModuleSP &exe_module_sp,
uint32_t cu_idx,
const FileSpec& file_spec,
const ArchSpec& arch,
const ConstString *object_name,
off_t object_offset,
const TimeValue *object_mod_time_ptr) :
Module (file_spec, arch, object_name, object_offset, object_mod_time_ptr),
m_exe_module_wp (exe_module_sp),
m_cu_idx (cu_idx)
{
}
virtual
~DebugMapModule ()
{
}
virtual SymbolVendor*
GetSymbolVendor(bool can_create = true, lldb_private::Stream *feedback_strm = NULL)
{
// Scope for locker
if (m_symfile_ap.get() || can_create == false)
return m_symfile_ap.get();
ModuleSP exe_module_sp (m_exe_module_wp.lock());
if (exe_module_sp)
{
// Now get the object file outside of a locking scope
ObjectFile *oso_objfile = GetObjectFile ();
if (oso_objfile)
{
Mutex::Locker locker (m_mutex);
SymbolVendor* symbol_vendor = Module::GetSymbolVendor(can_create, feedback_strm);
if (symbol_vendor)
{
// Set a a pointer to this class to set our OSO DWARF file know
// that the DWARF is being used along with a debug map and that
// it will have the remapped sections that we do below.
SymbolFileDWARF *oso_symfile = SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF(symbol_vendor->GetSymbolFile());
if (!oso_symfile)
return NULL;
ObjectFile *exe_objfile = exe_module_sp->GetObjectFile();
SymbolVendor *exe_sym_vendor = exe_module_sp->GetSymbolVendor();
if (exe_objfile && exe_sym_vendor)
{
if (oso_symfile->GetNumCompileUnits() == 1)
{
oso_symfile->SetDebugMapModule(exe_module_sp);
// Set the ID of the symbol file DWARF to the index of the OSO
// shifted left by 32 bits to provide a unique prefix for any
// UserID's that get created in the symbol file.
oso_symfile->SetID (((uint64_t)m_cu_idx + 1ull) << 32ull);
}
else
{
oso_symfile->SetID (UINT64_MAX);
}
}
return symbol_vendor;
}
}
}
return NULL;
}
protected:
ModuleWP m_exe_module_wp;
const uint32_t m_cu_idx;
};
void
SymbolFileDWARFDebugMap::Initialize()
{
PluginManager::RegisterPlugin (GetPluginNameStatic(),
GetPluginDescriptionStatic(),
CreateInstance);
}
void
SymbolFileDWARFDebugMap::Terminate()
{
PluginManager::UnregisterPlugin (CreateInstance);
}
lldb_private::ConstString
SymbolFileDWARFDebugMap::GetPluginNameStatic()
{
static ConstString g_name("dwarf-debugmap");
return g_name;
}
const char *
SymbolFileDWARFDebugMap::GetPluginDescriptionStatic()
{
return "DWARF and DWARF3 debug symbol file reader (debug map).";
}
SymbolFile*
SymbolFileDWARFDebugMap::CreateInstance (ObjectFile* obj_file)
{
return new SymbolFileDWARFDebugMap (obj_file);
}
SymbolFileDWARFDebugMap::SymbolFileDWARFDebugMap (ObjectFile* ofile) :
SymbolFile(ofile),
m_flags(),
m_compile_unit_infos(),
m_func_indexes(),
m_glob_indexes(),
m_supports_DW_AT_APPLE_objc_complete_type (eLazyBoolCalculate)
{
}
SymbolFileDWARFDebugMap::~SymbolFileDWARFDebugMap()
{
}
void
SymbolFileDWARFDebugMap::InitializeObject()
{
// Install our external AST source callbacks so we can complete Clang types.
llvm::OwningPtr<clang::ExternalASTSource> ast_source_ap (
new ClangExternalASTSourceCallbacks (SymbolFileDWARFDebugMap::CompleteTagDecl,
SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl,
NULL,
SymbolFileDWARFDebugMap::LayoutRecordType,
this));
GetClangASTContext().SetExternalSource (ast_source_ap);
}
void
SymbolFileDWARFDebugMap::InitOSO()
{
if (m_flags.test(kHaveInitializedOSOs))
return;
m_flags.set(kHaveInitializedOSOs);
// If the object file has been stripped, there is no sense in looking further
// as all of the debug symbols for the debug map will not be available
if (m_obj_file->IsStripped())
return;
// Also make sure the file type is some sort of executable. Core files, debug
// info files (dSYM), object files (.o files), and stub libraries all can
switch (m_obj_file->GetType())
{
case ObjectFile::eTypeInvalid:
case ObjectFile::eTypeCoreFile:
case ObjectFile::eTypeDebugInfo:
case ObjectFile::eTypeObjectFile:
case ObjectFile::eTypeStubLibrary:
case ObjectFile::eTypeUnknown:
return;
case ObjectFile::eTypeExecutable:
case ObjectFile::eTypeDynamicLinker:
case ObjectFile::eTypeSharedLibrary:
break;
}
// In order to get the abilities of this plug-in, we look at the list of
// N_OSO entries (object files) from the symbol table and make sure that
// these files exist and also contain valid DWARF. If we get any of that
// then we return the abilities of the first N_OSO's DWARF.
Symtab* symtab = m_obj_file->GetSymtab();
if (symtab)
{
Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP));
std::vector<uint32_t> oso_indexes;
// When a mach-o symbol is encoded, the n_type field is encoded in bits
// 23:16, and the n_desc field is encoded in bits 15:0.
//
// To find all N_OSO entries that are part of the DWARF + debug map
// we find only object file symbols with the flags value as follows:
// bits 23:16 == 0x66 (N_OSO)
// bits 15: 0 == 0x0001 (specifies this is a debug map object file)
const uint32_t k_oso_symbol_flags_value = 0x660001u;
const uint32_t oso_index_count = symtab->AppendSymbolIndexesWithTypeAndFlagsValue(eSymbolTypeObjectFile, k_oso_symbol_flags_value, oso_indexes);
if (oso_index_count > 0)
{
symtab->AppendSymbolIndexesWithType (eSymbolTypeCode, Symtab::eDebugYes, Symtab::eVisibilityAny, m_func_indexes);
symtab->AppendSymbolIndexesWithType (eSymbolTypeData, Symtab::eDebugYes, Symtab::eVisibilityAny, m_glob_indexes);
symtab->SortSymbolIndexesByValue(m_func_indexes, true);
symtab->SortSymbolIndexesByValue(m_glob_indexes, true);
for (uint32_t sym_idx : m_func_indexes)
{
const Symbol *symbol = symtab->SymbolAtIndex(sym_idx);
lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress();
lldb::addr_t byte_size = symbol->GetByteSize();
DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS));
m_debug_map.Append(debug_map_entry);
}
for (uint32_t sym_idx : m_glob_indexes)
{
const Symbol *symbol = symtab->SymbolAtIndex(sym_idx);
lldb::addr_t file_addr = symbol->GetAddress().GetFileAddress();
lldb::addr_t byte_size = symbol->GetByteSize();
DebugMap::Entry debug_map_entry(file_addr, byte_size, OSOEntry(sym_idx, LLDB_INVALID_ADDRESS));
m_debug_map.Append(debug_map_entry);
}
m_debug_map.Sort();
m_compile_unit_infos.resize(oso_index_count);
for (uint32_t i=0; i<oso_index_count; ++i)
{
const uint32_t so_idx = oso_indexes[i] - 1;
const uint32_t oso_idx = oso_indexes[i];
const Symbol *so_symbol = symtab->SymbolAtIndex(so_idx);
const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_idx);
if (so_symbol &&
oso_symbol &&
so_symbol->GetType() == eSymbolTypeSourceFile &&
oso_symbol->GetType() == eSymbolTypeObjectFile)
{
m_compile_unit_infos[i].so_file.SetFile(so_symbol->GetName().AsCString(), false);
m_compile_unit_infos[i].oso_path = oso_symbol->GetName();
TimeValue oso_mod_time;
oso_mod_time.OffsetWithSeconds(oso_symbol->GetAddress().GetOffset());
m_compile_unit_infos[i].oso_mod_time = oso_mod_time;
uint32_t sibling_idx = so_symbol->GetSiblingIndex();
// The sibling index can't be less that or equal to the current index "i"
if (sibling_idx <= i)
{
m_obj_file->GetModule()->ReportError ("N_SO in symbol with UID %u has invalid sibling in debug map, please file a bug and attach the binary listed in this error", so_symbol->GetID());
}
else
{
const Symbol* last_symbol = symtab->SymbolAtIndex (sibling_idx - 1);
m_compile_unit_infos[i].first_symbol_index = so_idx;
m_compile_unit_infos[i].last_symbol_index = sibling_idx - 1;
m_compile_unit_infos[i].first_symbol_id = so_symbol->GetID();
m_compile_unit_infos[i].last_symbol_id = last_symbol->GetID();
if (log)
log->Printf("Initialized OSO 0x%8.8x: file=%s", i, oso_symbol->GetName().GetCString());
}
}
else
{
if (oso_symbol == NULL)
m_obj_file->GetModule()->ReportError ("N_OSO symbol[%u] can't be found, please file a bug and attach the binary listed in this error", oso_idx);
else if (so_symbol == NULL)
m_obj_file->GetModule()->ReportError ("N_SO not found for N_OSO symbol[%u], please file a bug and attach the binary listed in this error", oso_idx);
else if (so_symbol->GetType() != eSymbolTypeSourceFile)
m_obj_file->GetModule()->ReportError ("N_SO has incorrect symbol type (%u) for N_OSO symbol[%u], please file a bug and attach the binary listed in this error", so_symbol->GetType(), oso_idx);
else if (oso_symbol->GetType() != eSymbolTypeSourceFile)
m_obj_file->GetModule()->ReportError ("N_OSO has incorrect symbol type (%u) for N_OSO symbol[%u], please file a bug and attach the binary listed in this error", oso_symbol->GetType(), oso_idx);
}
}
}
}
}
Module *
SymbolFileDWARFDebugMap::GetModuleByOSOIndex (uint32_t oso_idx)
{
const uint32_t cu_count = GetNumCompileUnits();
if (oso_idx < cu_count)
return GetModuleByCompUnitInfo (&m_compile_unit_infos[oso_idx]);
return NULL;
}
Module *
SymbolFileDWARFDebugMap::GetModuleByCompUnitInfo (CompileUnitInfo *comp_unit_info)
{
if (!comp_unit_info->oso_sp)
{
auto pos = m_oso_map.find (comp_unit_info->oso_path);
if (pos != m_oso_map.end())
{
comp_unit_info->oso_sp = pos->second;
}
else
{
ObjectFile *obj_file = GetObjectFile();
comp_unit_info->oso_sp.reset (new OSOInfo());
m_oso_map[comp_unit_info->oso_path] = comp_unit_info->oso_sp;
const char *oso_path = comp_unit_info->oso_path.GetCString();
FileSpec oso_file (oso_path, false);
ConstString oso_object;
if (oso_file.Exists())
{
TimeValue oso_mod_time (oso_file.GetModificationTime());
if (oso_mod_time != comp_unit_info->oso_mod_time)
{
obj_file->GetModule()->ReportError ("debug map object file '%s' has changed (actual time is 0x%" PRIx64 ", debug map time is 0x%" PRIx64 ") since this executable was linked, file will be ignored",
oso_file.GetPath().c_str(),
oso_mod_time.GetAsSecondsSinceJan1_1970(),
comp_unit_info->oso_mod_time.GetAsSecondsSinceJan1_1970());
return NULL;
}
}
else
{
const bool must_exist = true;
if (!ObjectFile::SplitArchivePathWithObject (oso_path,
oso_file,
oso_object,
must_exist))
{
return NULL;
}
}
// Always create a new module for .o files. Why? Because we
// use the debug map, to add new sections to each .o file and
// even though a .o file might not have changed, the sections
// that get added to the .o file can change.
comp_unit_info->oso_sp->module_sp.reset (new DebugMapModule (obj_file->GetModule(),
GetCompUnitInfoIndex(comp_unit_info),
oso_file,
m_obj_file->GetModule()->GetArchitecture(),
oso_object ? &oso_object : NULL,
0,
oso_object ? &comp_unit_info->oso_mod_time : NULL));
}
}
if (comp_unit_info->oso_sp)
return comp_unit_info->oso_sp->module_sp.get();
return NULL;
}
bool
SymbolFileDWARFDebugMap::GetFileSpecForSO (uint32_t oso_idx, FileSpec &file_spec)
{
if (oso_idx < m_compile_unit_infos.size())
{
if (m_compile_unit_infos[oso_idx].so_file)
{
file_spec = m_compile_unit_infos[oso_idx].so_file;
return true;
}
}
return false;
}
ObjectFile *
SymbolFileDWARFDebugMap::GetObjectFileByOSOIndex (uint32_t oso_idx)
{
Module *oso_module = GetModuleByOSOIndex (oso_idx);
if (oso_module)
return oso_module->GetObjectFile();
return NULL;
}
SymbolFileDWARF *
SymbolFileDWARFDebugMap::GetSymbolFile (const SymbolContext& sc)
{
CompileUnitInfo *comp_unit_info = GetCompUnitInfo (sc);
if (comp_unit_info)
return GetSymbolFileByCompUnitInfo (comp_unit_info);
return NULL;
}
ObjectFile *
SymbolFileDWARFDebugMap::GetObjectFileByCompUnitInfo (CompileUnitInfo *comp_unit_info)
{
Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info);
if (oso_module)
return oso_module->GetObjectFile();
return NULL;
}
uint32_t
SymbolFileDWARFDebugMap::GetCompUnitInfoIndex (const CompileUnitInfo *comp_unit_info)
{
if (!m_compile_unit_infos.empty())
{
const CompileUnitInfo *first_comp_unit_info = &m_compile_unit_infos.front();
const CompileUnitInfo *last_comp_unit_info = &m_compile_unit_infos.back();
if (first_comp_unit_info <= comp_unit_info && comp_unit_info <= last_comp_unit_info)
return comp_unit_info - first_comp_unit_info;
}
return UINT32_MAX;
}
SymbolFileDWARF *
SymbolFileDWARFDebugMap::GetSymbolFileByOSOIndex (uint32_t oso_idx)
{
if (oso_idx < m_compile_unit_infos.size())
return GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[oso_idx]);
return NULL;
}
SymbolFileDWARF *
SymbolFileDWARFDebugMap::GetSymbolFileAsSymbolFileDWARF (SymbolFile *sym_file)
{
if (sym_file && sym_file->GetPluginName() == SymbolFileDWARF::GetPluginNameStatic())
return (SymbolFileDWARF *)sym_file;
return NULL;
}
SymbolFileDWARF *
SymbolFileDWARFDebugMap::GetSymbolFileByCompUnitInfo (CompileUnitInfo *comp_unit_info)
{
Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info);
if (oso_module)
{
SymbolVendor *sym_vendor = oso_module->GetSymbolVendor();
if (sym_vendor)
return GetSymbolFileAsSymbolFileDWARF (sym_vendor->GetSymbolFile());
}
return NULL;
}
uint32_t
SymbolFileDWARFDebugMap::CalculateAbilities ()
{
// In order to get the abilities of this plug-in, we look at the list of
// N_OSO entries (object files) from the symbol table and make sure that
// these files exist and also contain valid DWARF. If we get any of that
// then we return the abilities of the first N_OSO's DWARF.
const uint32_t oso_index_count = GetNumCompileUnits();
if (oso_index_count > 0)
{
InitOSO();
if (!m_compile_unit_infos.empty())
{
return SymbolFile::CompileUnits |
SymbolFile::Functions |
SymbolFile::Blocks |
SymbolFile::GlobalVariables |
SymbolFile::LocalVariables |
SymbolFile::VariableTypes |
SymbolFile::LineTables ;
}
}
return 0;
}
uint32_t
SymbolFileDWARFDebugMap::GetNumCompileUnits()
{
InitOSO ();
return m_compile_unit_infos.size();
}
CompUnitSP
SymbolFileDWARFDebugMap::ParseCompileUnitAtIndex(uint32_t cu_idx)
{
CompUnitSP comp_unit_sp;
const uint32_t cu_count = GetNumCompileUnits();
if (cu_idx < cu_count)
{
Module *oso_module = GetModuleByCompUnitInfo (&m_compile_unit_infos[cu_idx]);
if (oso_module)
{
FileSpec so_file_spec;
if (GetFileSpecForSO (cu_idx, so_file_spec))
{
// User zero as the ID to match the compile unit at offset
// zero in each .o file since each .o file can only have
// one compile unit for now.
lldb::user_id_t cu_id = 0;
m_compile_unit_infos[cu_idx].compile_unit_sp.reset(new CompileUnit (m_obj_file->GetModule(),
NULL,
so_file_spec,
cu_id,
eLanguageTypeUnknown));
if (m_compile_unit_infos[cu_idx].compile_unit_sp)
{
// Let our symbol vendor know about this compile unit
m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex (cu_idx, m_compile_unit_infos[cu_idx].compile_unit_sp);
}
}
}
comp_unit_sp = m_compile_unit_infos[cu_idx].compile_unit_sp;
}
return comp_unit_sp;
}
SymbolFileDWARFDebugMap::CompileUnitInfo *
SymbolFileDWARFDebugMap::GetCompUnitInfo (const SymbolContext& sc)
{
const uint32_t cu_count = GetNumCompileUnits();
for (uint32_t i=0; i<cu_count; ++i)
{
if (sc.comp_unit == m_compile_unit_infos[i].compile_unit_sp.get())
return &m_compile_unit_infos[i];
}
return NULL;
}
size_t
SymbolFileDWARFDebugMap::GetCompUnitInfosForModule (const lldb_private::Module *module, std::vector<CompileUnitInfo *>& cu_infos)
{
const uint32_t cu_count = GetNumCompileUnits();
for (uint32_t i=0; i<cu_count; ++i)
{
if (module == GetModuleByCompUnitInfo (&m_compile_unit_infos[i]))
cu_infos.push_back (&m_compile_unit_infos[i]);
}
return cu_infos.size();
}
lldb::LanguageType
SymbolFileDWARFDebugMap::ParseCompileUnitLanguage (const SymbolContext& sc)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->ParseCompileUnitLanguage (sc);
return eLanguageTypeUnknown;
}
size_t
SymbolFileDWARFDebugMap::ParseCompileUnitFunctions (const SymbolContext& sc)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->ParseCompileUnitFunctions (sc);
return 0;
}
bool
SymbolFileDWARFDebugMap::ParseCompileUnitLineTable (const SymbolContext& sc)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->ParseCompileUnitLineTable (sc);
return false;
}
bool
SymbolFileDWARFDebugMap::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList &support_files)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->ParseCompileUnitSupportFiles (sc, support_files);
return false;
}
size_t
SymbolFileDWARFDebugMap::ParseFunctionBlocks (const SymbolContext& sc)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->ParseFunctionBlocks (sc);
return 0;
}
size_t
SymbolFileDWARFDebugMap::ParseTypes (const SymbolContext& sc)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->ParseTypes (sc);
return 0;
}
size_t
SymbolFileDWARFDebugMap::ParseVariablesForContext (const SymbolContext& sc)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->ParseVariablesForContext (sc);
return 0;
}
Type*
SymbolFileDWARFDebugMap::ResolveTypeUID(lldb::user_id_t type_uid)
{
const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid);
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
if (oso_dwarf)
return oso_dwarf->ResolveTypeUID (type_uid);
return NULL;
}
bool
SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (ClangASTType& clang_type)
{
// We have a struct/union/class/enum that needs to be fully resolved.
return false;
}
uint32_t
SymbolFileDWARFDebugMap::ResolveSymbolContext (const Address& exe_so_addr, uint32_t resolve_scope, SymbolContext& sc)
{
uint32_t resolved_flags = 0;
Symtab* symtab = m_obj_file->GetSymtab();
if (symtab)
{
const addr_t exe_file_addr = exe_so_addr.GetFileAddress();
const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains (exe_file_addr);
if (debug_map_entry)
{
sc.symbol = symtab->SymbolAtIndex(debug_map_entry->data.GetExeSymbolIndex());
if (sc.symbol != NULL)
{
resolved_flags |= eSymbolContextSymbol;
uint32_t oso_idx = 0;
CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithID (sc.symbol->GetID(), &oso_idx);
if (comp_unit_info)
{
comp_unit_info->GetFileRangeMap(this);
Module *oso_module = GetModuleByCompUnitInfo (comp_unit_info);
if (oso_module)
{
lldb::addr_t oso_file_addr = exe_file_addr - debug_map_entry->GetRangeBase() + debug_map_entry->data.GetOSOFileAddress();
Address oso_so_addr;
if (oso_module->ResolveFileAddress(oso_file_addr, oso_so_addr))
{
resolved_flags |= oso_module->GetSymbolVendor()->ResolveSymbolContext (oso_so_addr, resolve_scope, sc);
}
}
}
}
}
}
return resolved_flags;
}
uint32_t
SymbolFileDWARFDebugMap::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
{
const uint32_t initial = sc_list.GetSize();
const uint32_t cu_count = GetNumCompileUnits();
for (uint32_t i=0; i<cu_count; ++i)
{
// If we are checking for inlines, then we need to look through all
// compile units no matter if "file_spec" matches.
bool resolve = check_inlines;
if (!resolve)
{
FileSpec so_file_spec;
if (GetFileSpecForSO (i, so_file_spec))
{
// Match the full path if the incoming file_spec has a directory (not just a basename)
const bool full_match = (bool)file_spec.GetDirectory();
resolve = FileSpec::Equal (file_spec, so_file_spec, full_match);
}
}
if (resolve)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (i);
if (oso_dwarf)
oso_dwarf->ResolveSymbolContext(file_spec, line, check_inlines, resolve_scope, sc_list);
}
}
return sc_list.GetSize() - initial;
}
uint32_t
SymbolFileDWARFDebugMap::PrivateFindGlobalVariables
(
const ConstString &name,
const ClangNamespaceDecl *namespace_decl,
const std::vector<uint32_t> &indexes, // Indexes into the symbol table that match "name"
uint32_t max_matches,
VariableList& variables
)
{
const uint32_t original_size = variables.GetSize();
const size_t match_count = indexes.size();
for (size_t i=0; i<match_count; ++i)
{
uint32_t oso_idx;
CompileUnitInfo* comp_unit_info = GetCompileUnitInfoForSymbolWithIndex (indexes[i], &oso_idx);
if (comp_unit_info)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
if (oso_dwarf)
{
if (oso_dwarf->FindGlobalVariables(name, namespace_decl, true, max_matches, variables))
if (variables.GetSize() > max_matches)
break;
}
}
}
return variables.GetSize() - original_size;
}
uint32_t
SymbolFileDWARFDebugMap::FindGlobalVariables (const ConstString &name, const ClangNamespaceDecl *namespace_decl, bool append, uint32_t max_matches, VariableList& variables)
{
// If we aren't appending the results to this list, then clear the list
if (!append)
variables.Clear();
// Remember how many variables are in the list before we search in case
// we are appending the results to a variable list.
const uint32_t original_size = variables.GetSize();
uint32_t total_matches = 0;
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (name,
namespace_decl,
true,
max_matches,
variables);
if (oso_matches > 0)
{
total_matches += oso_matches;
// Are we getting all matches?
if (max_matches == UINT32_MAX)
continue; // Yep, continue getting everything
// If we have found enough matches, lets get out
if (max_matches >= total_matches)
break;
// Update the max matches for any subsequent calls to find globals
// in any other object files with DWARF
max_matches -= oso_matches;
}
}
// Return the number of variable that were appended to the list
return variables.GetSize() - original_size;
}
uint32_t
SymbolFileDWARFDebugMap::FindGlobalVariables (const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables)
{
// If we aren't appending the results to this list, then clear the list
if (!append)
variables.Clear();
// Remember how many variables are in the list before we search in case
// we are appending the results to a variable list.
const uint32_t original_size = variables.GetSize();
uint32_t total_matches = 0;
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
const uint32_t oso_matches = oso_dwarf->FindGlobalVariables (regex,
true,
max_matches,
variables);
if (oso_matches > 0)
{
total_matches += oso_matches;
// Are we getting all matches?
if (max_matches == UINT32_MAX)
continue; // Yep, continue getting everything
// If we have found enough matches, lets get out
if (max_matches >= total_matches)
break;
// Update the max matches for any subsequent calls to find globals
// in any other object files with DWARF
max_matches -= oso_matches;
}
}
// Return the number of variable that were appended to the list
return variables.GetSize() - original_size;
}
int
SymbolFileDWARFDebugMap::SymbolContainsSymbolWithIndex (uint32_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info)
{
const uint32_t symbol_idx = *symbol_idx_ptr;
if (symbol_idx < comp_unit_info->first_symbol_index)
return -1;
if (symbol_idx <= comp_unit_info->last_symbol_index)
return 0;
return 1;
}
int
SymbolFileDWARFDebugMap::SymbolContainsSymbolWithID (user_id_t *symbol_idx_ptr, const CompileUnitInfo *comp_unit_info)
{
const user_id_t symbol_id = *symbol_idx_ptr;
if (symbol_id < comp_unit_info->first_symbol_id)
return -1;
if (symbol_id <= comp_unit_info->last_symbol_id)
return 0;
return 1;
}
SymbolFileDWARFDebugMap::CompileUnitInfo*
SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithIndex (uint32_t symbol_idx, uint32_t *oso_idx_ptr)
{
const uint32_t oso_index_count = m_compile_unit_infos.size();
CompileUnitInfo *comp_unit_info = NULL;
if (oso_index_count)
{
comp_unit_info = (CompileUnitInfo*)bsearch(&symbol_idx,
&m_compile_unit_infos[0],
m_compile_unit_infos.size(),
sizeof(CompileUnitInfo),
(ComparisonFunction)SymbolContainsSymbolWithIndex);
}
if (oso_idx_ptr)
{
if (comp_unit_info != NULL)
*oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0];
else
*oso_idx_ptr = UINT32_MAX;
}
return comp_unit_info;
}
SymbolFileDWARFDebugMap::CompileUnitInfo*
SymbolFileDWARFDebugMap::GetCompileUnitInfoForSymbolWithID (user_id_t symbol_id, uint32_t *oso_idx_ptr)
{
const uint32_t oso_index_count = m_compile_unit_infos.size();
CompileUnitInfo *comp_unit_info = NULL;
if (oso_index_count)
{
comp_unit_info = (CompileUnitInfo*)::bsearch (&symbol_id,
&m_compile_unit_infos[0],
m_compile_unit_infos.size(),
sizeof(CompileUnitInfo),
(ComparisonFunction)SymbolContainsSymbolWithID);
}
if (oso_idx_ptr)
{
if (comp_unit_info != NULL)
*oso_idx_ptr = comp_unit_info - &m_compile_unit_infos[0];
else
*oso_idx_ptr = UINT32_MAX;
}
return comp_unit_info;
}
static void
RemoveFunctionsWithModuleNotEqualTo (const ModuleSP &module_sp, SymbolContextList &sc_list, uint32_t start_idx)
{
// We found functions in .o files. Not all functions in the .o files
// will have made it into the final output file. The ones that did
// make it into the final output file will have a section whose module
// matches the module from the ObjectFile for this SymbolFile. When
// the modules don't match, then we have something that was in a
// .o file, but doesn't map to anything in the final executable.
uint32_t i=start_idx;
while (i < sc_list.GetSize())
{
SymbolContext sc;
sc_list.GetContextAtIndex(i, sc);
if (sc.function)
{
const SectionSP section_sp (sc.function->GetAddressRange().GetBaseAddress().GetSection());
if (section_sp->GetModule() != module_sp)
{
sc_list.RemoveContextAtIndex(i);
continue;
}
}
++i;
}
}
uint32_t
SymbolFileDWARFDebugMap::FindFunctions(const ConstString &name, const ClangNamespaceDecl *namespace_decl, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list)
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"SymbolFileDWARFDebugMap::FindFunctions (name = %s)",
name.GetCString());
uint32_t initial_size = 0;
if (append)
initial_size = sc_list.GetSize();
else
sc_list.Clear();
uint32_t oso_idx = 0;
SymbolFileDWARF *oso_dwarf;
while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL)
{
uint32_t sc_idx = sc_list.GetSize();
if (oso_dwarf->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, true, sc_list))
{
RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx);
}
}
return sc_list.GetSize() - initial_size;
}
uint32_t
SymbolFileDWARFDebugMap::FindFunctions (const RegularExpression& regex, bool include_inlines, bool append, SymbolContextList& sc_list)
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"SymbolFileDWARFDebugMap::FindFunctions (regex = '%s')",
regex.GetText());
uint32_t initial_size = 0;
if (append)
initial_size = sc_list.GetSize();
else
sc_list.Clear();
uint32_t oso_idx = 0;
SymbolFileDWARF *oso_dwarf;
while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL)
{
uint32_t sc_idx = sc_list.GetSize();
if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list))
{
RemoveFunctionsWithModuleNotEqualTo (m_obj_file->GetModule(), sc_list, sc_idx);
}
}
return sc_list.GetSize() - initial_size;
}
size_t
SymbolFileDWARFDebugMap::GetTypes (SymbolContextScope *sc_scope,
uint32_t type_mask,
TypeList &type_list)
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)",
type_mask);
uint32_t initial_size = type_list.GetSize();
SymbolFileDWARF *oso_dwarf = NULL;
if (sc_scope)
{
SymbolContext sc;
sc_scope->CalculateSymbolContext(&sc);
CompileUnitInfo *cu_info = GetCompUnitInfo (sc);
if (cu_info)
{
oso_dwarf = GetSymbolFileByCompUnitInfo (cu_info);
if (oso_dwarf)
oso_dwarf->GetTypes (sc_scope, type_mask, type_list);
}
}
else
{
uint32_t oso_idx = 0;
while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL)
{
oso_dwarf->GetTypes (sc_scope, type_mask, type_list);
}
}
return type_list.GetSize() - initial_size;
}
TypeSP
SymbolFileDWARFDebugMap::FindDefinitionTypeForDWARFDeclContext (const DWARFDeclContext &die_decl_ctx)
{
TypeSP type_sp;
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
type_sp = oso_dwarf->FindDefinitionTypeForDWARFDeclContext (die_decl_ctx);
if (type_sp)
break;
}
return type_sp;
}
bool
SymbolFileDWARFDebugMap::Supports_DW_AT_APPLE_objc_complete_type (SymbolFileDWARF *skip_dwarf_oso)
{
if (m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolCalculate)
{
m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolNo;
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
if (skip_dwarf_oso != oso_dwarf && oso_dwarf->Supports_DW_AT_APPLE_objc_complete_type(NULL))
{
m_supports_DW_AT_APPLE_objc_complete_type = eLazyBoolYes;
break;
}
}
}
return m_supports_DW_AT_APPLE_objc_complete_type == eLazyBoolYes;
}
TypeSP
SymbolFileDWARFDebugMap::FindCompleteObjCDefinitionTypeForDIE (const DWARFDebugInfoEntry *die,
const ConstString &type_name,
bool must_be_implementation)
{
TypeSP type_sp;
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
type_sp = oso_dwarf->FindCompleteObjCDefinitionTypeForDIE (die, type_name, must_be_implementation);
if (type_sp)
break;
}
return type_sp;
}
uint32_t
SymbolFileDWARFDebugMap::FindTypes
(
const SymbolContext& sc,
const ConstString &name,
const ClangNamespaceDecl *namespace_decl,
bool append,
uint32_t max_matches,
TypeList& types
)
{
if (!append)
types.Clear();
const uint32_t initial_types_size = types.GetSize();
SymbolFileDWARF *oso_dwarf;
if (sc.comp_unit)
{
oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
return oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types);
}
else
{
uint32_t oso_idx = 0;
while ((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx++)) != NULL)
oso_dwarf->FindTypes (sc, name, namespace_decl, append, max_matches, types);
}
return types.GetSize() - initial_types_size;
}
//
//uint32_t
//SymbolFileDWARFDebugMap::FindTypes (const SymbolContext& sc, const RegularExpression& regex, bool append, uint32_t max_matches, Type::Encoding encoding, lldb::user_id_t udt_uid, TypeList& types)
//{
// SymbolFileDWARF *oso_dwarf = GetSymbolFile (sc);
// if (oso_dwarf)
// return oso_dwarf->FindTypes (sc, regex, append, max_matches, encoding, udt_uid, types);
// return 0;
//}
ClangNamespaceDecl
SymbolFileDWARFDebugMap::FindNamespace (const lldb_private::SymbolContext& sc,
const lldb_private::ConstString &name,
const ClangNamespaceDecl *parent_namespace_decl)
{
ClangNamespaceDecl matching_namespace;
SymbolFileDWARF *oso_dwarf;
if (sc.comp_unit)
{
oso_dwarf = GetSymbolFile (sc);
if (oso_dwarf)
matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl);
}
else
{
for (uint32_t oso_idx = 0;
((oso_dwarf = GetSymbolFileByOSOIndex (oso_idx)) != NULL);
++oso_idx)
{
matching_namespace = oso_dwarf->FindNamespace (sc, name, parent_namespace_decl);
if (matching_namespace)
break;
}
}
return matching_namespace;
}
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
lldb_private::ConstString
SymbolFileDWARFDebugMap::GetPluginName()
{
return GetPluginNameStatic();
}
uint32_t
SymbolFileDWARFDebugMap::GetPluginVersion()
{
return 1;
}
lldb::CompUnitSP
SymbolFileDWARFDebugMap::GetCompileUnit (SymbolFileDWARF *oso_dwarf)
{
if (oso_dwarf)
{
const uint32_t cu_count = GetNumCompileUnits();
for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx)
{
SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]);
if (oso_symfile == oso_dwarf)
{
if (!m_compile_unit_infos[cu_idx].compile_unit_sp)
m_compile_unit_infos[cu_idx].compile_unit_sp = ParseCompileUnitAtIndex (cu_idx);
return m_compile_unit_infos[cu_idx].compile_unit_sp;
}
}
}
assert(!"this shouldn't happen");
return lldb::CompUnitSP();
}
SymbolFileDWARFDebugMap::CompileUnitInfo *
SymbolFileDWARFDebugMap::GetCompileUnitInfo (SymbolFileDWARF *oso_dwarf)
{
if (oso_dwarf)
{
const uint32_t cu_count = GetNumCompileUnits();
for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx)
{
SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]);
if (oso_symfile == oso_dwarf)
{
return &m_compile_unit_infos[cu_idx];
}
}
}
return NULL;
}
void
SymbolFileDWARFDebugMap::SetCompileUnit (SymbolFileDWARF *oso_dwarf, const CompUnitSP &cu_sp)
{
if (oso_dwarf)
{
const uint32_t cu_count = GetNumCompileUnits();
for (uint32_t cu_idx=0; cu_idx<cu_count; ++cu_idx)
{
SymbolFileDWARF *oso_symfile = GetSymbolFileByCompUnitInfo (&m_compile_unit_infos[cu_idx]);
if (oso_symfile == oso_dwarf)
{
if (m_compile_unit_infos[cu_idx].compile_unit_sp)
{
assert (m_compile_unit_infos[cu_idx].compile_unit_sp.get() == cu_sp.get());
}
else
{
m_compile_unit_infos[cu_idx].compile_unit_sp = cu_sp;
m_obj_file->GetModule()->GetSymbolVendor()->SetCompileUnitAtIndex(cu_idx, cu_sp);
}
}
}
}
}
void
SymbolFileDWARFDebugMap::CompleteTagDecl (void *baton, clang::TagDecl *decl)
{
SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton;
ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
if (clang_type)
{
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
if (oso_dwarf->HasForwardDeclForClangType (clang_type))
{
oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
return;
}
}
}
}
void
SymbolFileDWARFDebugMap::CompleteObjCInterfaceDecl (void *baton, clang::ObjCInterfaceDecl *decl)
{
SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton;
ClangASTType clang_type = symbol_file_dwarf->GetClangASTContext().GetTypeForDecl (decl);
if (clang_type)
{
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
if (oso_dwarf->HasForwardDeclForClangType (clang_type))
{
oso_dwarf->ResolveClangOpaqueTypeDefinition (clang_type);
return;
}
}
}
}
bool
SymbolFileDWARFDebugMap::LayoutRecordType (void *baton,
const clang::RecordDecl *record_decl,
uint64_t &size,
uint64_t &alignment,
llvm::DenseMap <const clang::FieldDecl *, uint64_t> &field_offsets,
llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &base_offsets,
llvm::DenseMap <const clang::CXXRecordDecl *, clang::CharUnits> &vbase_offsets)
{
SymbolFileDWARFDebugMap *symbol_file_dwarf = (SymbolFileDWARFDebugMap *)baton;
SymbolFileDWARF *oso_dwarf;
for (uint32_t oso_idx = 0; ((oso_dwarf = symbol_file_dwarf->GetSymbolFileByOSOIndex (oso_idx)) != NULL); ++oso_idx)
{
if (oso_dwarf->LayoutRecordType (record_decl, size, alignment, field_offsets, base_offsets, vbase_offsets))
return true;
}
return false;
}
clang::DeclContext*
SymbolFileDWARFDebugMap::GetClangDeclContextContainingTypeUID (lldb::user_id_t type_uid)
{
const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid);
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
if (oso_dwarf)
return oso_dwarf->GetClangDeclContextContainingTypeUID (type_uid);
return NULL;
}
clang::DeclContext*
SymbolFileDWARFDebugMap::GetClangDeclContextForTypeUID (const lldb_private::SymbolContext &sc, lldb::user_id_t type_uid)
{
const uint64_t oso_idx = GetOSOIndexFromUserID (type_uid);
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
if (oso_dwarf)
return oso_dwarf->GetClangDeclContextForTypeUID (sc, type_uid);
return NULL;
}
bool
SymbolFileDWARFDebugMap::AddOSOFileRange (CompileUnitInfo *cu_info,
lldb::addr_t exe_file_addr,
lldb::addr_t oso_file_addr,
lldb::addr_t oso_byte_size)
{
const uint32_t debug_map_idx = m_debug_map.FindEntryIndexThatContains(exe_file_addr);
if (debug_map_idx != UINT32_MAX)
{
DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(exe_file_addr);
debug_map_entry->data.SetOSOFileAddress(oso_file_addr);
cu_info->file_range_map.Append(FileRangeMap::Entry(oso_file_addr, oso_byte_size, exe_file_addr));
return true;
}
return false;
}
void
SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (CompileUnitInfo *cu_info)
{
cu_info->file_range_map.Sort();
#if defined(DEBUG_OSO_DMAP)
const FileRangeMap &oso_file_range_map = cu_info->GetFileRangeMap(this);
const size_t n = oso_file_range_map.GetSize();
printf ("SymbolFileDWARFDebugMap::FinalizeOSOFileRanges (cu_info = %p) %s\n",
cu_info,
cu_info->oso_sp->module_sp->GetFileSpec().GetPath().c_str());
for (size_t i=0; i<n; ++i)
{
const FileRangeMap::Entry &entry = oso_file_range_map.GetEntryRef(i);
printf ("oso [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ") ==> exe [0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n",
entry.GetRangeBase(), entry.GetRangeEnd(),
entry.data, entry.data + entry.GetByteSize());
}
#endif
}
lldb::addr_t
SymbolFileDWARFDebugMap::LinkOSOFileAddress (SymbolFileDWARF *oso_symfile, lldb::addr_t oso_file_addr)
{
CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_symfile);
if (cu_info)
{
const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr);
if (oso_range_entry)
{
const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data);
if (debug_map_entry)
{
const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase();
const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset;
return exe_file_addr;
}
}
}
return LLDB_INVALID_ADDRESS;
}
bool
SymbolFileDWARFDebugMap::LinkOSOAddress (Address &addr)
{
// Make sure this address hasn't been fixed already
Module *exe_module = GetObjectFile()->GetModule().get();
Module *addr_module = addr.GetModule().get();
if (addr_module == exe_module)
return true; // Address is already in terms of the main executable module
CompileUnitInfo *cu_info = GetCompileUnitInfo (GetSymbolFileAsSymbolFileDWARF(addr_module->GetSymbolVendor()->GetSymbolFile()));
if (cu_info)
{
const lldb::addr_t oso_file_addr = addr.GetFileAddress();
const FileRangeMap::Entry *oso_range_entry = cu_info->GetFileRangeMap(this).FindEntryThatContains(oso_file_addr);
if (oso_range_entry)
{
const DebugMap::Entry *debug_map_entry = m_debug_map.FindEntryThatContains(oso_range_entry->data);
if (debug_map_entry)
{
const lldb::addr_t offset = oso_file_addr - oso_range_entry->GetRangeBase();
const lldb::addr_t exe_file_addr = debug_map_entry->GetRangeBase() + offset;
return exe_module->ResolveFileAddress(exe_file_addr, addr);
}
}
}
return true;
}
LineTable *
SymbolFileDWARFDebugMap::LinkOSOLineTable (SymbolFileDWARF *oso_dwarf, LineTable *line_table)
{
CompileUnitInfo *cu_info = GetCompileUnitInfo (oso_dwarf);
if (cu_info)
return line_table->LinkLineTable(cu_info->GetFileRangeMap(this));
return NULL;
}
size_t
SymbolFileDWARFDebugMap::AddOSOARanges (SymbolFileDWARF* dwarf2Data, DWARFDebugAranges* debug_aranges)
{
size_t num_line_entries_added = 0;
if (debug_aranges && dwarf2Data)
{
CompileUnitInfo *compile_unit_info = GetCompileUnitInfo(dwarf2Data);
if (compile_unit_info)
{
const FileRangeMap &file_range_map = compile_unit_info->GetFileRangeMap(this);
for (size_t idx = 0;
idx < file_range_map.GetSize();
idx++)
{
const FileRangeMap::Entry* entry = file_range_map.GetEntryAtIndex(idx);
if (entry)
{
printf ("[0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ")\n", entry->GetRangeBase(), entry->GetRangeEnd());
debug_aranges->AppendRange(dwarf2Data->GetID(), entry->GetRangeBase(), entry->GetRangeEnd());
num_line_entries_added++;
}
}
}
}
return num_line_entries_added;
}
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