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1f7460716bcb2a0919124da96365e7deb4b4181e
clang-p2996/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
Greg Clayton 1f7460716b <rdar://problem/11757916> 
Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes:
- Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". 
- modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly
- Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was.
- modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile()

Cleaned up header includes a bit as well.

llvm-svn: 162860
2012-08-29 21:13:06 +00:00

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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 "lldb/Core/Module.h"
#include "lldb/Core/ModuleList.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/Section.h"
#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/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.
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) :
Module (file_spec, arch, object_name, object_offset),
m_exe_module_wp (exe_module_sp),
m_cu_idx (cu_idx)
{
}
virtual ObjectFile *
GetObjectFile ()
{
Mutex::Locker locker (m_mutex);
if (m_did_load_objfile == false)
{
ModuleSP exe_module_sp (m_exe_module_wp.lock());
if (exe_module_sp)
{
ObjectFile *exe_objfile = exe_module_sp->GetObjectFile();
ObjectFile *oso_objfile = Module::GetObjectFile();
SymbolVendor *exe_sym_vendor = exe_module_sp->GetSymbolVendor();
if (exe_objfile && oso_objfile && exe_sym_vendor)
{
SymbolFileDWARFDebugMap *exe_symfile = (SymbolFileDWARFDebugMap *)exe_sym_vendor->GetSymbolFile();
if (exe_symfile)
{
SymbolFileDWARFDebugMap::CompileUnitInfo *comp_unit_info = exe_symfile->GetCompUnitInfo (this);
if (comp_unit_info)
{
// 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.
//comp_unit_info->exe_sections_sp.reset(new SectionList);
Symtab *exe_symtab = exe_objfile->GetSymtab();
ModuleSP oso_module_sp (oso_objfile->GetModule());
Symtab *oso_symtab = oso_objfile->GetSymtab();
//#define DEBUG_OSO_DMAP // Do not check in with this defined...
#if defined(DEBUG_OSO_DMAP)
StreamFile s(stdout);
s << "OSO symtab:\n";
oso_symtab->Dump(&s, NULL);
s << "OSO sections before:\n";
oso_objfile->GetSectionList()->Dump(&s, NULL, true);
#endif
///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;
uint32_t sect_id = 0x10000;
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)
{
// If we found the symbol, then we
SectionSP exe_fun_section (exe_symbol->GetAddress().GetSection());
SectionSP oso_fun_section (oso_fun_symbol->GetAddress().GetSection());
if (oso_fun_section)
{
// Now we create a section that we will add as a child of the
// section in which the .o symbol (the N_FUN) exists.
// We use the exe_symbol size because the one in the .o file
// will just be a symbol with no size, and the exe_symbol
// size will reflect any size changes (ppc has been known to
// shrink function sizes when it gets rid of jump islands that
// aren't needed anymore).
SectionSP oso_fun_section_sp (new Section (oso_fun_symbol->GetAddress().GetSection(),
oso_module_sp, // Module (the .o file)
sect_id++, // Section ID starts at 0x10000 and increments so the section IDs don't overlap with the standard mach IDs
exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), // Name the section the same as the symbol for which is was generated!
eSectionTypeDebug,
oso_fun_symbol->GetAddress().GetOffset(), // File VM address offset in the current section
exe_symbol->GetByteSize(), // File size (we need the size from the executable)
0, 0, 0));
oso_fun_section_sp->SetLinkedLocation (exe_fun_section,
exe_symbol->GetAddress().GetFileAddress() - exe_fun_section->GetFileAddress());
oso_fun_section->GetChildren().AddSection(oso_fun_section_sp);
}
}
}
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(),
eSymbolTypeData,
Symtab::eDebugNo,
Symtab::eVisibilityAny);
if (exe_symbol && oso_gsym_symbol && exe_symbol->ValueIsAddress() && oso_gsym_symbol->ValueIsAddress())
{
// If we found the symbol, then we
SectionSP exe_gsym_section (exe_symbol->GetAddress().GetSection());
SectionSP oso_gsym_section (oso_gsym_symbol->GetAddress().GetSection());
if (oso_gsym_section)
{
SectionSP oso_gsym_section_sp (new Section (oso_gsym_symbol->GetAddress().GetSection(),
oso_module_sp, // Module (the .o file)
sect_id++, // Section ID starts at 0x10000 and increments so the section IDs don't overlap with the standard mach IDs
exe_symbol->GetMangled().GetName(Mangled::ePreferMangled), // Name the section the same as the symbol for which is was generated!
eSectionTypeDebug,
oso_gsym_symbol->GetAddress().GetOffset(), // File VM address offset in the current section
1, // We don't know the size of the global, just do the main address for now.
0, 0, 0));
oso_gsym_section_sp->SetLinkedLocation (exe_gsym_section,
exe_symbol->GetAddress().GetFileAddress() - exe_gsym_section->GetFileAddress());
oso_gsym_section->GetChildren().AddSection(oso_gsym_section_sp);
}
}
}
break;
}
}
}
oso_objfile->GetSectionList()->Finalize(); // Now that we're done adding sections, finalize to build fast-lookup caches
#if defined(DEBUG_OSO_DMAP)
s << "OSO sections after:\n";
oso_objfile->GetSectionList()->Dump(&s, NULL, true);
#endif
}
}
}
}
}
return m_objfile_sp.get();
}
virtual SymbolVendor*
GetSymbolVendor(bool can_create = true)
{
// 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);
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 = (SymbolFileDWARF *)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);
}
const char *
SymbolFileDWARFDebugMap::GetPluginNameStatic()
{
return "dwarf-debugmap";
}
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);
// 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)
{
LogSP log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_MAP));
std::vector<uint32_t> oso_indexes;
#if defined(DEBUG_OSO_DMAP)
// StreamFile s(stdout);
// symtab->Dump(&s, NULL, eSortOrderNone);
#endif
// 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);
m_compile_unit_infos.resize(oso_index_count);
// s.Printf("%s N_OSO symbols:\n", __PRETTY_FUNCTION__);
// symtab->Dump(&s, oso_indexes);
for (uint32_t i=0; i<oso_index_count; ++i)
{
const Symbol *so_symbol = symtab->SymbolAtIndex(oso_indexes[i] - 1);
const Symbol *oso_symbol = symtab->SymbolAtIndex(oso_indexes[i]);
assert (so_symbol);
assert (oso_symbol);
assert (so_symbol->GetType() == eSymbolTypeSourceFile);
assert (oso_symbol->GetType() == eSymbolTypeObjectFile);
m_compile_unit_infos[i].so_file.SetFile(so_symbol->GetName().AsCString(), true);
m_compile_unit_infos[i].oso_file.SetFile(oso_symbol->GetName().AsCString(), true);
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 = symtab->GetIndexForSymbol(so_symbol);
m_compile_unit_infos[i].last_symbol_index = symtab->GetIndexForSymbol(last_symbol);
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());
}
}
}
}
}
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_module_sp.get() == NULL && comp_unit_info->symbol_file_supported)
{
if (!comp_unit_info->oso_file.Exists())
{
char path[PATH_MAX*2];
comp_unit_info->oso_file.GetPath(path, sizeof(path));
if (ObjectFile::SplitArchivePathWithObject (path,
comp_unit_info->oso_file,
comp_unit_info->oso_object))
{
comp_unit_info->oso_file.GetPath(path, sizeof(path));
//printf ("resolved archive '%s' and object '%s'\n", path, comp_unit_info->oso_object.GetCString());
}
else
{
comp_unit_info->symbol_file_supported = false;
return false;
}
}
// 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_module_sp.reset (new DebugMapModule (GetObjectFile()->GetModule(),
GetCompUnitInfoIndex(comp_unit_info),
comp_unit_info->oso_file,
m_obj_file->GetModule()->GetArchitecture(),
comp_unit_info->oso_object ? &comp_unit_info->oso_object : NULL,
0));
}
return comp_unit_info->oso_module_sp.get();
}
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::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 (SymbolFileDWARF *)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)
{
const uint32_t dwarf_abilities = SymbolFile::CompileUnits |
SymbolFile::Functions |
SymbolFile::Blocks |
SymbolFile::GlobalVariables |
SymbolFile::LocalVariables |
SymbolFile::VariableTypes |
SymbolFile::LineTables;
InitOSO();
if (!m_compile_unit_infos.empty())
return dwarf_abilities;
// for (uint32_t oso_idx=0; oso_idx<oso_index_count; ++oso_idx)
// {
// SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
// if (oso_dwarf)
// {
// uint32_t oso_abilities = oso_dwarf->GetAbilities();
// if ((oso_abilities & dwarf_abilities) == dwarf_abilities)
// return oso_abilities;
// }
// }
}
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)
{
if (m_compile_unit_infos[cu_idx].oso_compile_unit_sp.get() == NULL &&
m_compile_unit_infos[cu_idx].symbol_file_supported)
{
FileSpec so_file_spec;
if (GetFileSpecForSO (cu_idx, so_file_spec))
{
Module *oso_module = GetModuleByOSOIndex (cu_idx);
if (oso_module)
{
// 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].oso_compile_unit_sp.reset (new CompileUnit (oso_module->shared_from_this(),
NULL,
so_file_spec,
cu_id,
eLanguageTypeUnknown));
}
if (!m_compile_unit_infos[cu_idx].oso_compile_unit_sp)
{
m_compile_unit_infos[cu_idx].oso_compile_unit_sp.reset(new CompileUnit (m_obj_file->GetModule(),
NULL,
so_file_spec,
cu_idx,
eLanguageTypeUnknown));
}
if (m_compile_unit_infos[cu_idx].oso_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].oso_compile_unit_sp);
}
}
}
comp_unit_sp = m_compile_unit_infos[cu_idx].oso_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].oso_compile_unit_sp.get())
return &m_compile_unit_infos[i];
}
return NULL;
}
SymbolFileDWARFDebugMap::CompileUnitInfo *
SymbolFileDWARFDebugMap::GetCompUnitInfo (const lldb_private::Module *module)
{
const uint32_t cu_count = GetNumCompileUnits();
for (uint32_t i=0; i<cu_count; ++i)
{
if (module == m_compile_unit_infos[i].oso_module_sp.get())
return &m_compile_unit_infos[i];
}
return NULL;
}
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)
oso_dwarf->ResolveTypeUID (type_uid);
return NULL;
}
lldb::clang_type_t
SymbolFileDWARFDebugMap::ResolveClangOpaqueTypeDefinition (lldb::clang_type_t clang_type)
{
// We have a struct/union/class/enum that needs to be fully resolved.
return NULL;
}
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();
sc.symbol = symtab->FindSymbolContainingFileAddress (exe_file_addr, &m_func_indexes[0], m_func_indexes.size());
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)
{
SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex (oso_idx);
ObjectFile *oso_objfile = GetObjectFileByOSOIndex (oso_idx);
if (oso_dwarf && oso_objfile)
{
SectionList *oso_section_list = oso_objfile->GetSectionList();
SectionSP oso_symbol_section_sp (oso_section_list->FindSectionContainingLinkedFileAddress (exe_file_addr, UINT32_MAX));
if (oso_symbol_section_sp)
{
const addr_t linked_file_addr = oso_symbol_section_sp->GetLinkedFileAddress();
Address oso_so_addr (oso_symbol_section_sp, exe_file_addr - linked_file_addr);
if (oso_so_addr.IsSectionOffset())
resolved_flags |= oso_dwarf->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 = 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;
}
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
//------------------------------------------------------------------
const char *
SymbolFileDWARFDebugMap::GetPluginName()
{
return "SymbolFileDWARFDebugMap";
}
const char *
SymbolFileDWARFDebugMap::GetShortPluginName()
{
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].oso_compile_unit_sp)
m_compile_unit_infos[cu_idx].oso_compile_unit_sp = ParseCompileUnitAtIndex (cu_idx);
return m_compile_unit_infos[cu_idx].oso_compile_unit_sp;
}
}
}
assert(!"this shouldn't happen");
return lldb::CompUnitSP();
}
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].oso_compile_unit_sp)
{
assert (m_compile_unit_infos[cu_idx].oso_compile_unit_sp.get() == cu_sp.get());
}
else
{
m_compile_unit_infos[cu_idx].oso_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;
clang_type_t 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;
clang_type_t 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;
}
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