C++ LogSP::get方法代码示例

void
DWARFDebugAranges::Sort (bool minimize)
{    
    Timer scoped_timer(__PRETTY_FUNCTION__, "%s this = %p",
                       __PRETTY_FUNCTION__, this);

    LogSP log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_ARANGES));
    size_t orig_arange_size = 0;
    if (log)
    {
        orig_arange_size = m_aranges.GetSize();
        log->Printf ("DWARFDebugAranges::Sort(minimize = %u) with %zu entries", minimize, orig_arange_size);
    }

    m_aranges.Sort();
    m_aranges.CombineConsecutiveEntriesWithEqualData();

    if (log)
    {
        if (minimize)
        {
            const size_t new_arange_size = m_aranges.GetSize();
            const size_t delta = orig_arange_size - new_arange_size;
            log->Printf ("DWARFDebugAranges::Sort() %zu entries after minimizing (%zu entries combined for %zu bytes saved)", 
                         new_arange_size, delta, delta * sizeof(Range));
        }
        Dump (log.get());
    }
}

bool
DWARFDebugPubnames::Extract(const DataExtractor& data)
{
    Timer scoped_timer (__PRETTY_FUNCTION__,
                        "DWARFDebugPubnames::Extract (byte_size = %zu)",
                        data.GetByteSize());
    LogSP log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_PUBNAMES));
    if (log)
        log->Printf("DWARFDebugPubnames::Extract (byte_size = %zu)", data.GetByteSize());

    if (data.ValidOffset(0))
    {
        uint32_t offset = 0;

        DWARFDebugPubnamesSet set;
        while (data.ValidOffset(offset))
        {
            if (set.Extract(data, &offset))
            {
                m_sets.push_back(set);
                offset = set.GetOffsetOfNextEntry();
            }
            else
                break;
        }
        if (log)
            Dump (log.get());
        return true;
    }
    return false;
}

kern_return_t
RegisterContextMach_x86_64::ReadGPR (bool force)
{
    int set = GPRRegSet;
    if (force || !RegisterSetIsCached(set))
    {
        mach_msg_type_number_t count = GPRWordCount;
        SetError(GPRRegSet, Read, ::thread_get_state(GetThreadID(), set, (thread_state_t)&gpr, &count));
        LogSP log (ProcessMacOSXLog::GetLogIfAllCategoriesSet (PD_LOG_THREAD));
        if (log)
            LogGPR (log.get(), "RegisterContextMach_x86_64::ReadGPR(thread = 0x%4.4x)", GetThreadID());
    }
    return GetError(GPRRegSet, Read);
}

const DWARFDebugAranges &
DWARFCompileUnit::GetFunctionAranges ()
{
    if (m_func_aranges_ap.get() == NULL)
    {
        m_func_aranges_ap.reset (new DWARFDebugAranges());
        LogSP log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_ARANGES));

        if (log)
        {
            m_dwarf2Data->GetObjectFile()->GetModule()->LogMessage (log.get(), 
                                                                    "DWARFCompileUnit::GetFunctionAranges() for compile unit at .debug_info[0x%8.8x]",
                                                                    GetOffset());
        }
        const DWARFDebugInfoEntry* die = DIE();
        if (die)
            die->BuildFunctionAddressRangeTable (m_dwarf2Data, this, m_func_aranges_ap.get());
        const bool minimize = false;
        m_func_aranges_ap->Sort(minimize);
    }
    return *m_func_aranges_ap.get();
}

//----------------------------------------------------------------------
// ParseCompileUnitDIEsIfNeeded
//
// Parses a compile unit and indexes its DIEs if it hasn't already been
// done.
//----------------------------------------------------------------------
size_t
DWARFCompileUnit::ExtractDIEsIfNeeded (bool cu_die_only)
{
    const size_t initial_die_array_size = m_die_array.size();
    if ((cu_die_only && initial_die_array_size > 0) || initial_die_array_size > 1)
        return 0; // Already parsed

    Timer scoped_timer (__PRETTY_FUNCTION__,
                        "%8.8x: DWARFCompileUnit::ExtractDIEsIfNeeded( cu_die_only = %i )",
                        m_offset,
                        cu_die_only);

    // Set the offset to that of the first DIE and calculate the start of the
    // next compilation unit header.
    uint32_t offset = GetFirstDIEOffset();
    uint32_t next_cu_offset = GetNextCompileUnitOffset();

    DWARFDebugInfoEntry die;
        // Keep a flat array of the DIE for binary lookup by DIE offset
    if (!cu_die_only)
    {
        LogSP log (LogChannelDWARF::GetLogIfAny(DWARF_LOG_DEBUG_INFO | DWARF_LOG_LOOKUPS));
        if (log)
        {
            m_dwarf2Data->GetObjectFile()->GetModule()->LogMessageVerboseBacktrace (log.get(),
                                                                                    "DWARFCompileUnit::ExtractDIEsIfNeeded () for compile unit at .debug_info[0x%8.8x]",
                                                                                    GetOffset());
        }
    }

    uint32_t depth = 0;
    // We are in our compile unit, parse starting at the offset
    // we were told to parse
    const DataExtractor& debug_info_data = m_dwarf2Data->get_debug_info_data();
    std::vector<uint32_t> die_index_stack;
    die_index_stack.reserve(32);
    die_index_stack.push_back(0);
    bool prev_die_had_children = false;
    const uint8_t *fixed_form_sizes = DWARFFormValue::GetFixedFormSizesForAddressSize (GetAddressByteSize());
    while (offset < next_cu_offset &&
           die.FastExtract (debug_info_data, this, fixed_form_sizes, &offset))
    {
//        if (log)
//            log->Printf("0x%8.8x: %*.*s%s%s",
//                        die.GetOffset(),
//                        depth * 2, depth * 2, "",
//                        DW_TAG_value_to_name (die.Tag()),
//                        die.HasChildren() ? " *" : "");

        const bool null_die = die.IsNULL();
        if (depth == 0)
        {
            uint64_t base_addr = die.GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_low_pc, LLDB_INVALID_ADDRESS);
            if (base_addr == LLDB_INVALID_ADDRESS)
                base_addr = die.GetAttributeValueAsUnsigned(m_dwarf2Data, this, DW_AT_entry_pc, 0);
            SetBaseAddress (base_addr);
            if (initial_die_array_size == 0)
                AddDIE (die);
            if (cu_die_only)
                return 1;
        }
        else
        {
            if (null_die)
            {
                if (prev_die_had_children)
                {
                    // This will only happen if a DIE says is has children
                    // but all it contains is a NULL tag. Since we are removing
                    // the NULL DIEs from the list (saves up to 25% in C++ code),
                    // we need a way to let the DIE know that it actually doesn't
                    // have children.
                    if (!m_die_array.empty())
                        m_die_array.back().SetEmptyChildren(true);
                }
            }
            else
            {
                die.SetParentIndex(m_die_array.size() - die_index_stack[depth-1]);

                if (die_index_stack.back())
                    m_die_array[die_index_stack.back()].SetSiblingIndex(m_die_array.size()-die_index_stack.back());
                
                // Only push the DIE if it isn't a NULL DIE
                    m_die_array.push_back(die);
            }
        }

        if (null_die)
        {
            // NULL DIE.
            if (!die_index_stack.empty())
                die_index_stack.pop_back();

//.........这里部分代码省略.........