uint32_t
SectionList::AddUniqueSection (SectionSP& sect_sp)
{
uint32_t sect_idx = FindSectionIndex (sect_sp.get());
if (sect_idx == UINT32_MAX)
sect_idx = AddSection (sect_sp);
return sect_idx;
}
void UnwindTable::Initialize() {
if (m_initialized)
return;
std::lock_guard<std::mutex> guard(m_mutex);
if (m_initialized) // check again once we've acquired the lock
return;
m_initialized = true;
SectionList *sl = m_object_file.GetSectionList();
if (!sl)
return;
SectionSP sect = sl->FindSectionByType(eSectionTypeEHFrame, true);
if (sect.get()) {
m_eh_frame_up.reset(
new DWARFCallFrameInfo(m_object_file, sect, DWARFCallFrameInfo::EH));
}
sect = sl->FindSectionByType(eSectionTypeDWARFDebugFrame, true);
if (sect) {
m_debug_frame_up.reset(
new DWARFCallFrameInfo(m_object_file, sect, DWARFCallFrameInfo::DWARF));
}
sect = sl->FindSectionByType(eSectionTypeCompactUnwind, true);
if (sect) {
m_compact_unwind_up.reset(new CompactUnwindInfo(m_object_file, sect));
}
sect = sl->FindSectionByType(eSectionTypeARMexidx, true);
if (sect) {
SectionSP sect_extab = sl->FindSectionByType(eSectionTypeARMextab, true);
if (sect_extab.get()) {
m_arm_unwind_up.reset(new ArmUnwindInfo(m_object_file, sect, sect_extab));
}
}
}
void
UnwindTable::Initialize ()
{
if (m_initialized)
return;
SectionList* sl = m_object_file.GetSectionList ();
if (sl)
{
SectionSP sect = sl->FindSectionByType (eSectionTypeEHFrame, true);
if (sect.get())
{
m_eh_frame = new DWARFCallFrameInfo(m_object_file, sect, eRegisterKindGCC, true);
}
}
ArchSpec arch;
if (m_object_file.GetArchitecture (arch))
{
m_assembly_profiler = UnwindAssembly::FindPlugin (arch);
m_initialized = true;
}
}