C++ Log::GetMask方法代码示例

bool
ProcessFreeBSD::UpdateThreadList(ThreadList &old_thread_list, ThreadList &new_thread_list)
{
    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("ProcessFreeBSD::%s() (pid = %" PRIu64 ")", __FUNCTION__, GetID());

    bool has_updated = false;
    const lldb::pid_t pid = GetID();
    // Update the process thread list with this new thread.
    // FIXME: We should be using tid, not pid.
    assert(m_monitor);
    ThreadSP thread_sp (old_thread_list.FindThreadByID (pid, false));
    if (!thread_sp) {
        ProcessSP me = this->shared_from_this();
        thread_sp.reset(new POSIXThread(*me, pid));
        has_updated = true;
    }

    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("ProcessFreeBSD::%s() updated tid = %" PRIu64, __FUNCTION__, pid);

    new_thread_list.AddThread(thread_sp);

    return has_updated; // the list has been updated
}

void
ProcessPOSIXLog::DisableLog (const char **args, Stream *feedback_strm)
{
    Log *log (GetLog ());
    if (log)
    {
        uint32_t flag_bits = 0;
        
        flag_bits = log->GetMask().Get();
        for (; args[0]; args++)
        {
            const char *arg = args[0];
            uint32_t bits = GetFlagBits(arg);

            if (bits)
            {
                flag_bits &= ~bits;
            }
            else
            {
                feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
                ListLogCategories (feedback_strm);
            }
        }
        
        log->GetMask().Reset (flag_bits);
        if (flag_bits == 0)
            g_log_enabled = false;
    }
    
    return;
}

Log *
lldb_private::EnableLog (StreamSP &log_stream_sp, uint32_t log_options, Args &args, Stream *feedback_strm)
{
    // Try see if there already is a log - that way we can reuse its settings.
    // We could reuse the log in toto, but we don't know that the stream is the same.
    uint32_t flag_bits;
    Log* log = LogAccessor (true, NULL);
    if (log)
        flag_bits = log->GetMask().GetAllFlagBits();
    else
        flag_bits = 0;

    // Now make a new log with this stream.
    log = LogAccessor (false, &log_stream_sp);
    if (log)
    {
        bool got_unknown_category = false;
        const size_t argc = args.GetArgumentCount();
        for (size_t i=0; i<argc; ++i)
        {
            const char *arg = args.GetArgumentAtIndex(i);

            if      (strcasecmp(arg, "all")     == 0  ) flag_bits |= LIBLLDB_LOG_ALL;
            else if (strcasestr(arg, "break")   == arg) flag_bits |= LIBLLDB_LOG_BREAKPOINTS;
            else if (strcasecmp(arg, "default") == 0  ) flag_bits |= LIBLLDB_LOG_DEFAULT;
            else if (strcasestr(arg, "event")   == arg) flag_bits |= LIBLLDB_LOG_EVENTS;
            else if (strcasestr(arg, "expr")    == arg) flag_bits |= LIBLLDB_LOG_EXPRESSIONS;
            else if (strcasestr(arg, "object")  == arg) flag_bits |= LIBLLDB_LOG_OBJECT;
            else if (strcasecmp(arg, "process") == 0  ) flag_bits |= LIBLLDB_LOG_PROCESS;
            else if (strcasecmp(arg, "shlib")   == 0  ) flag_bits |= LIBLLDB_LOG_SHLIB;
            else if (strcasecmp(arg, "state")   == 0  ) flag_bits |= LIBLLDB_LOG_STATE;
            else if (strcasecmp(arg, "step")    == 0  ) flag_bits |= LIBLLDB_LOG_STEP;
            else if (strcasecmp(arg, "thread")  == 0  ) flag_bits |= LIBLLDB_LOG_THREAD;
            else if (strcasecmp(arg, "verbose") == 0  ) flag_bits |= LIBLLDB_LOG_VERBOSE;
            else if (strcasestr(arg, "watch")   == arg) flag_bits |= LIBLLDB_LOG_WATCHPOINTS;
            else if (strcasestr(arg, "temp")   == arg)  flag_bits |= LIBLLDB_LOG_TEMPORARY;
            else if (strcasestr(arg, "comm")   == arg)  flag_bits |= LIBLLDB_LOG_COMMUNICATION;
            else if (strcasestr(arg, "conn")   == arg)  flag_bits |= LIBLLDB_LOG_CONNECTION;
            else
            {
                feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
                if (got_unknown_category == false)
                {
                    got_unknown_category = true;
                    ListLogCategories (feedback_strm);
                    return log;
                }
            }
        }

        log->GetMask().SetAllFlagBits(flag_bits);
        log->GetOptions().SetAllFlagBits(log_options);
    }
    return log;
}

POSIXThread::POSIXThread(Process &process, lldb::tid_t tid)
    : Thread(process, tid),
      m_frame_ap (),
      m_breakpoint (),
      m_thread_name_valid (false),
      m_thread_name (),
      m_posix_thread(NULL)
{
    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("POSIXThread::%s (tid = %" PRIi64 ")", __FUNCTION__, tid);

    // Set the current watchpoints for this thread.
    Target &target = GetProcess()->GetTarget();
    const WatchpointList &wp_list = target.GetWatchpointList();
    size_t wp_size = wp_list.GetSize();

    for (uint32_t wp_idx = 0; wp_idx < wp_size; wp_idx++)
    {
        lldb::WatchpointSP wp = wp_list.GetByIndex(wp_idx);
        if (wp.get() && wp->IsEnabled())
        {
            // This watchpoint as been enabled; obviously this "new" thread
            // has been created since that watchpoint was enabled.  Since
            // the POSIXBreakpointProtocol has yet to be initialized, its
            // m_watchpoints_initialized member will be FALSE.  Attempting to
            // read the debug status register to determine if a watchpoint
            // has been hit would result in the zeroing of that register.
            // Since the active debug registers would have been cloned when
            // this thread was created, simply force the m_watchpoints_initized
            // member to TRUE and avoid resetting dr6 and dr7.
            GetPOSIXBreakpointProtocol()->ForceWatchpointsInitialized();
        }
    }
}

POSIXThread::POSIXThread(Process &process, lldb::tid_t tid)
    : Thread(process, tid),
      m_frame_ap (),
      m_breakpoint (),
      m_thread_name_valid (false),
      m_thread_name (),
      m_posix_thread(NULL)
{
    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("POSIXThread::%s (tid = %" PRIi64 ")", __FUNCTION__, tid);

    // Set the current watchpoints for this thread.
    Target &target = GetProcess()->GetTarget();
    const WatchpointList &wp_list = target.GetWatchpointList();
    size_t wp_size = wp_list.GetSize();

    for (uint32_t wp_idx = 0; wp_idx < wp_size; wp_idx++)
    {
        lldb::WatchpointSP wp = wp_list.GetByIndex(wp_idx);
        if (wp.get() && wp->IsEnabled())
        {
            assert(EnableHardwareWatchpoint(wp.get()));
        }
    }
}

bool
ThreadMacOSX::RestoreSuspendCount()
{
    Log *log = ProcessMacOSXLog::GetLogIfAllCategoriesSet(PD_LOG_THREAD);
    if (log && log->GetMask().IsSet(PD_LOG_VERBOSE))
        log->Printf ("ThreadMacOSX::%s ( )", __FUNCTION__);
    Error err;
    lldb::tid_t tid = GetID ();
    if (ThreadIDIsValid(tid) == false)
        return false;
    else if (m_suspend_count > m_basic_info.suspend_count)
    {
        while (m_suspend_count > m_basic_info.suspend_count)
        {
            err = ::thread_resume (tid);
            if (err.Success())
                --m_suspend_count;
            if (log || err.Fail())
                err.PutToLog(log, "::thread_resume (%4.4x)", tid);
        }
    }
    else if (m_suspend_count < m_basic_info.suspend_count)
    {
        while (m_suspend_count < m_basic_info.suspend_count)
        {
            err = ::thread_suspend (tid);
            if (err.Success())
                --m_suspend_count;
            if (log || err.Fail())
                err.PutToLog(log, "::thread_suspend (%4.4x)", tid);
        }
    }
    return  m_suspend_count == m_basic_info.suspend_count;
}

Log *
lldb_private::GetLogIfAnyCategoriesSet (uint32_t mask)
{
    Log *log = LogAccessor (true, NULL);
    if (log && mask && (mask & log->GetMask().GetAllFlagBits()))
        return log;
    return NULL;
}

void
ProcessPOSIX::RefreshStateAfterStop()
{
    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("ProcessPOSIX::%s(), message_queue size = %d", __FUNCTION__, (int)m_message_queue.size());

    Mutex::Locker lock(m_message_mutex);

    // This method used to only handle one message.  Changing it to loop allows
    // it to handle the case where we hit a breakpoint while handling a different
    // breakpoint.
    while (!m_message_queue.empty())
    {
        ProcessMessage &message = m_message_queue.front();

        // Resolve the thread this message corresponds to and pass it along.
        lldb::tid_t tid = message.GetTID();
        if (log)
            log->Printf ("ProcessPOSIX::%s(), message_queue size = %d, pid = %" PRIi64, __FUNCTION__, (int)m_message_queue.size(), tid);

        if (message.GetKind() == ProcessMessage::eNewThreadMessage)
        {
            if (log)
                log->Printf ("ProcessPOSIX::%s() adding thread, tid = %" PRIi64, __FUNCTION__, message.GetChildTID());
            lldb::tid_t child_tid = message.GetChildTID();
            ThreadSP thread_sp;
            thread_sp.reset(CreateNewPOSIXThread(*this, child_tid));

            Mutex::Locker lock(m_thread_list.GetMutex());

            m_thread_list.AddThread(thread_sp);
        }

        m_thread_list.RefreshStateAfterStop();

        POSIXThread *thread = static_cast<POSIXThread*>(
            GetThreadList().FindThreadByID(tid, false).get());
        if (thread)
            thread->Notify(message);

        if (message.GetKind() == ProcessMessage::eExitMessage)
        {
            // FIXME: We should tell the user about this, but the limbo message is probably better for that.
            if (log)
                log->Printf ("ProcessPOSIX::%s() removing thread, tid = %" PRIi64, __FUNCTION__, tid);

            Mutex::Locker lock(m_thread_list.GetMutex());

            ThreadSP thread_sp = m_thread_list.RemoveThreadByID(tid, false);
            thread_sp.reset();
            m_seen_initial_stop.erase(tid);
        }

        m_message_queue.pop();
    }
}

void
ProcessPOSIXLog::DisableLog (const char **args, Stream *feedback_strm)
{
    Log *log (GetLog ());
    if (log)
    {
        uint32_t flag_bits = 0;
        
        flag_bits = log->GetMask().Get();
        for (; args[0]; args++)
        {
            const char *arg = args[0];

            if      (::strcasecmp (arg, "all")        == 0 ) flag_bits &= ~POSIX_LOG_ALL;
            else if (::strcasecmp (arg, "async")      == 0 ) flag_bits &= ~POSIX_LOG_ASYNC;
            else if (::strncasecmp (arg, "break", 5)  == 0 ) flag_bits &= ~POSIX_LOG_BREAKPOINTS;
            else if (::strncasecmp (arg, "comm", 4)   == 0 ) flag_bits &= ~POSIX_LOG_COMM;
            else if (::strcasecmp (arg, "default")    == 0 ) flag_bits &= ~POSIX_LOG_DEFAULT;
            else if (::strcasecmp (arg, "packets")    == 0 ) flag_bits &= ~POSIX_LOG_PACKETS;
            else if (::strcasecmp (arg, "memory")     == 0 ) flag_bits &= ~POSIX_LOG_MEMORY;
            else if (::strcasecmp (arg, "data-short") == 0 ) flag_bits &= ~POSIX_LOG_MEMORY_DATA_SHORT;
            else if (::strcasecmp (arg, "data-long")  == 0 ) flag_bits &= ~POSIX_LOG_MEMORY_DATA_LONG;
            else if (::strcasecmp (arg, "process")    == 0 ) flag_bits &= ~POSIX_LOG_PROCESS;
            else if (::strcasecmp (arg, "ptrace")     == 0 ) flag_bits &= ~POSIX_LOG_PTRACE;
            else if (::strcasecmp (arg, "registers")  == 0 ) flag_bits &= ~POSIX_LOG_REGISTERS;
            else if (::strcasecmp (arg, "step")       == 0 ) flag_bits &= ~POSIX_LOG_STEP;
            else if (::strcasecmp (arg, "thread")     == 0 ) flag_bits &= ~POSIX_LOG_THREAD;
            else if (::strcasecmp (arg, "verbose")    == 0 ) flag_bits &= ~POSIX_LOG_VERBOSE;
            else if (::strncasecmp (arg, "watch", 5)  == 0 ) flag_bits &= ~POSIX_LOG_WATCHPOINTS;
            else
            {
                feedback_strm->Printf("error: unrecognized log category '%s'\n", arg);
                ListLogCategories (feedback_strm);
            }
        }
        
        log->GetMask().Reset (flag_bits);
        if (flag_bits == 0)
            g_log_enabled = false;
    }
    
    return;
}

bool
MachVMRegion::GetRegionForAddress(lldb::addr_t addr)
{
    // Restore any original protections and clear our vars
    Clear();
    m_addr = addr;
    m_start = addr;
    m_depth = 1024;
    mach_msg_type_number_t info_size = kRegionInfoSize;
    assert(sizeof(info_size) == 4);
    m_err = ::mach_vm_region_recurse (m_task, &m_start, &m_size, &m_depth, (vm_region_recurse_info_t)&m_data, &info_size);
    Log *log = ProcessMacOSXLog::GetLogIfAllCategoriesSet (PD_LOG_MEMORY_PROTECTIONS);
    if (log || m_err.Fail())
        m_err.PutToLog(log, "::mach_vm_region_recurse ( task = 0x%4.4x, address => 0x%8.8llx, size => %llu, nesting_depth => %d, info => %p, infoCnt => %d) addr = 0x%8.8llx ", m_task, (uint64_t)m_start, (uint64_t)m_size, m_depth, &m_data, info_size, (uint64_t)addr);
    if (m_err.Fail())
    {
        return false;
    }
    else
    {
        if (log && log->GetMask().IsSet(PD_LOG_VERBOSE))
        {
            log->Printf("info = { prot = %u, "
                        "max_prot = %u, "
                        "inheritance = 0x%8.8x, "
                        "offset = 0x%8.8llx, "
                        "user_tag = 0x%8.8x, "
                        "ref_count = %u, "
                        "shadow_depth = %u, "
                        "ext_pager = %u, "
                        "share_mode = %u, "
                        "is_submap = %d, "
                        "behavior = %d, "
                        "object_id = 0x%8.8x, "
                        "user_wired_count = 0x%4.4x }",
                        m_data.protection,
                        m_data.max_protection,
                        m_data.inheritance,
                        (uint64_t)m_data.offset,
                        m_data.user_tag,
                        m_data.ref_count,
                        m_data.shadow_depth,
                        m_data.external_pager,
                        m_data.share_mode,
                        m_data.is_submap,
                        m_data.behavior,
                        m_data.object_id,
                        m_data.user_wired_count);
        }
    }

    m_curr_protection = m_data.protection;

    return true;
}

Log *
LogChannelDWARF::GetLogIfAll (uint32_t mask)
{
    Log *log = GetLog();
    if (log)
    {
        if (log->GetMask().AllSet(mask))
            return log;
    }
    return NULL;
}

bool
ProcessPOSIX::UpdateThreadList(ThreadList &old_thread_list, ThreadList &new_thread_list)
{
    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_THREAD));
    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("ProcessPOSIX::%s() (pid = %" PRIi64 ")", __FUNCTION__, GetID());

    // Update the process thread list with this new thread.
    // FIXME: We should be using tid, not pid.
    assert(m_monitor);
    ThreadSP thread_sp (old_thread_list.FindThreadByID (GetID(), false));
    if (!thread_sp) {
        thread_sp.reset(CreateNewPOSIXThread(*this, GetID()));
    }

    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("ProcessPOSIX::%s() updated pid = %" PRIi64, __FUNCTION__, GetID());
    new_thread_list.AddThread(thread_sp);

    return new_thread_list.GetSize(false) > 0;
}

                          // by global constructors before other threads
                          // were done with it.
Log *
ProcessMacOSXLog::GetLogIfAllCategoriesSet (uint32_t mask)
{
    Log *log = g_log;
    if (log && mask)
    {
        uint32_t log_mask = log->GetMask().GetAllFlagBits();
        if ((log_mask & mask) != mask)
            return NULL;
    }
    return log;
}

void
LogChannelDWARF::LogIf (uint32_t mask, const char *format, ...)
{
    if (g_log_channel)
    {
        Log *log = g_log_channel->m_log_ap.get();
        if (log && log->GetMask().AnySet(mask))
        {
            va_list args;
            va_start (args, format);
            log->VAPrintf (format, args);
            va_end (args);
        }
    }
}

Error
ProcessFreeBSD::DoAttachToProcessWithID (lldb::pid_t pid,  const ProcessAttachInfo &attach_info)
{
    Error error;
    assert(m_monitor == NULL);

    Log *log (ProcessPOSIXLog::GetLogIfAllCategoriesSet (POSIX_LOG_PROCESS));
    if (log && log->GetMask().Test(POSIX_LOG_VERBOSE))
        log->Printf ("ProcessFreeBSD::%s(pid = %" PRIi64 ")", __FUNCTION__, GetID());

    m_monitor = new ProcessMonitor(this, pid, error);

    if (!error.Success())
        return error;

    PlatformSP platform_sp (m_target.GetPlatform ());
    assert (platform_sp.get());
    if (!platform_sp)
        return error;  // FIXME: Detatch?

    // Find out what we can about this process
    ProcessInstanceInfo process_info;
    platform_sp->GetProcessInfo (pid, process_info);

    // Resolve the executable module
    ModuleSP exe_module_sp;
    FileSpecList executable_search_paths (Target::GetDefaultExecutableSearchPaths());
    ModuleSpec exe_module_spec(process_info.GetExecutableFile(), m_target.GetArchitecture());
    error = platform_sp->ResolveExecutable(exe_module_spec,
                                           exe_module_sp,
                                           executable_search_paths.GetSize() ? &executable_search_paths : NULL);
    if (!error.Success())
        return error;

    // Fix the target architecture if necessary
    const ArchSpec &module_arch = exe_module_sp->GetArchitecture();
    if (module_arch.IsValid() && !m_target.GetArchitecture().IsExactMatch(module_arch))
        m_target.SetArchitecture(module_arch);

    // Initialize the target module list
    m_target.SetExecutableModule (exe_module_sp, true);

    SetSTDIOFileDescriptor(m_monitor->GetTerminalFD());

    SetID(pid);

    return error;
}