Renaming "MacOSX-Kernel" to "Darwin-Kernel". The file contents and project

commit will come shortly after this commit.

llvm-svn: 138282

1 files changed, 0 insertions, 1096 deletions

diff --git a/lldb/source/Plugins/DynamicLoader/MacOSX-Kernel/DynamicLoaderMacOSXKernel.cpp b/lldb/source/Plugins/DynamicLoader/MacOSX-Kernel/DynamicLoaderMacOSXKernel.cpp
deleted file mode 100644
index 142a6f17ae6..00000000000
--- a/lldb/source/Plugins/DynamicLoader/MacOSX-Kernel/DynamicLoaderMacOSXKernel.cpp
+++ /dev/null
@@ -1,1096 +0,0 @@
-//===-- DynamicLoaderMacOSXKernel.cpp -----------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "lldb/Breakpoint/StoppointCallbackContext.h"
-#include "lldb/Core/DataBuffer.h"
-#include "lldb/Core/DataBufferHeap.h"
-#include "lldb/Core/Debugger.h"
-#include "lldb/Core/Log.h"
-#include "lldb/Core/Module.h"
-#include "lldb/Core/PluginManager.h"
-#include "lldb/Core/State.h"
-#include "lldb/Symbol/ObjectFile.h"
-#include "lldb/Target/ObjCLanguageRuntime.h"
-#include "lldb/Target/RegisterContext.h"
-#include "lldb/Target/Target.h"
-#include "lldb/Target/Thread.h"
-#include "lldb/Target/ThreadPlanRunToAddress.h"
-#include "lldb/Target/StackFrame.h"
-
-#include "DynamicLoaderMacOSXKernel.h"
-
-//#define ENABLE_DEBUG_PRINTF // COMMENT THIS LINE OUT PRIOR TO CHECKIN
-#ifdef ENABLE_DEBUG_PRINTF
-#include <stdio.h>
-#define DEBUG_PRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)
-#else
-#define DEBUG_PRINTF(fmt, ...)
-#endif
-
-using namespace lldb;
-using namespace lldb_private;
-
-/// FIXME - The ObjC Runtime trampoline handler doesn't really belong here.
-/// I am putting it here so I can invoke it in the Trampoline code here, but
-/// it should be moved to the ObjC Runtime support when it is set up.
-
-
-//----------------------------------------------------------------------
-// Create an instance of this class. This function is filled into
-// the plugin info class that gets handed out by the plugin factory and
-// allows the lldb to instantiate an instance of this class.
-//----------------------------------------------------------------------
-DynamicLoader *
-DynamicLoaderMacOSXKernel::CreateInstance (Process* process, bool force)
-{
-    bool create = force;
-    if (!create)
-    {
-        Module* exe_module = process->GetTarget().GetExecutableModulePointer();
-        if (exe_module)
-        {
-            ObjectFile *object_file = exe_module->GetObjectFile();
-            if (object_file)
-            {
-                SectionList *section_list = object_file->GetSectionList();
-                if (section_list)
-                {
-                    static ConstString g_kld_section_name ("__KLD");
-                    if (section_list->FindSectionByName (g_kld_section_name))
-                    {
-                        create = true;
-                    }
-                }
-            }
-        }
-        
-        if (create)
-        {
-            const llvm::Triple &triple_ref = process->GetTarget().GetArchitecture().GetTriple();
-            create = triple_ref.getOS() == llvm::Triple::Darwin && triple_ref.getVendor() == llvm::Triple::Apple;
-        }
-    }
-    
-    if (create)
-        return new DynamicLoaderMacOSXKernel (process);
-    return NULL;
-}
-
-//----------------------------------------------------------------------
-// Constructor
-//----------------------------------------------------------------------
-DynamicLoaderMacOSXKernel::DynamicLoaderMacOSXKernel (Process* process) :
-    DynamicLoader(process),
-    m_kernel(),
-    m_kext_summary_header_ptr_addr (),
-    m_kext_summary_header_addr (),
-    m_kext_summary_header (),
-    m_break_id (LLDB_INVALID_BREAK_ID),
-    m_kext_summaries(),
-    m_mutex(Mutex::eMutexTypeRecursive)
-{
-}
-
-//----------------------------------------------------------------------
-// Destructor
-//----------------------------------------------------------------------
-DynamicLoaderMacOSXKernel::~DynamicLoaderMacOSXKernel()
-{
-    Clear(true);
-}
-
-void
-DynamicLoaderMacOSXKernel::UpdateIfNeeded()
-{
-    LoadKernelModuleIfNeeded();
-    SetNotificationBreakpointIfNeeded ();
-}
-//------------------------------------------------------------------
-/// Called after attaching a process.
-///
-/// Allow DynamicLoader plug-ins to execute some code after
-/// attaching to a process.
-//------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::DidAttach ()
-{
-    PrivateInitialize(m_process);
-    UpdateIfNeeded();
-}
-
-//------------------------------------------------------------------
-/// Called after attaching a process.
-///
-/// Allow DynamicLoader plug-ins to execute some code after
-/// attaching to a process.
-//------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::DidLaunch ()
-{
-    PrivateInitialize(m_process);
-    UpdateIfNeeded();
-}
-
-
-//----------------------------------------------------------------------
-// Clear out the state of this class.
-//----------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::Clear (bool clear_process)
-{
-    Mutex::Locker locker(m_mutex);
-
-    if (m_process->IsAlive() && LLDB_BREAK_ID_IS_VALID(m_break_id))
-        m_process->ClearBreakpointSiteByID(m_break_id);
-
-    if (clear_process)
-        m_process = NULL;
-    m_kernel.Clear(false);
-    m_kext_summary_header_ptr_addr.Clear();
-    m_kext_summary_header_addr.Clear();
-    m_kext_summaries.clear();
-    m_break_id = LLDB_INVALID_BREAK_ID;
-}
-
-
-//----------------------------------------------------------------------
-// Load the kernel module and initialize the "m_kernel" member. Return
-// true _only_ if the kernel is loaded the first time through (subsequent
-// calls to this function should return false after the kernel has been
-// already loaded).
-//----------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::LoadKernelModuleIfNeeded()
-{
-    if (!m_kext_summary_header_ptr_addr.IsValid())
-    {
-        m_kernel.Clear(false);
-        m_kernel.module_sp = m_process->GetTarget().GetExecutableModule();
-        if (m_kernel.module_sp)
-        {
-            static ConstString mach_header_name ("_mh_execute_header");
-            static ConstString kext_summary_symbol ("gLoadedKextSummaries");
-            const Symbol *symbol = NULL;
-            symbol = m_kernel.module_sp->FindFirstSymbolWithNameAndType (kext_summary_symbol, eSymbolTypeData);
-            if (symbol)
-                m_kext_summary_header_ptr_addr = symbol->GetValue();
-
-            symbol = m_kernel.module_sp->FindFirstSymbolWithNameAndType (mach_header_name, eSymbolTypeAbsolute);
-            if (symbol)
-            {
-                // The "_mh_execute_header" symbol is absolute and not a section based 
-                // symbol that will have a valid address, so we need to resolve it...
-                m_process->GetTarget().GetImages().ResolveFileAddress (symbol->GetValue().GetFileAddress(), m_kernel.so_address);
-                DataExtractor data; // Load command data
-                if (ReadMachHeader (m_kernel, &data))
-                {
-                    if (m_kernel.header.filetype == llvm::MachO::HeaderFileTypeExecutable)
-                    {
-                        if (ParseLoadCommands (data, m_kernel))
-                            UpdateImageLoadAddress (m_kernel);
-                                                
-                        // Update all image infos
-                        ReadAllKextSummaries ();
-                    }
-                }
-                else
-                {
-                    m_kernel.Clear(false);
-                }
-            }
-        }
-    }
-}
-
-bool
-DynamicLoaderMacOSXKernel::FindTargetModule (OSKextLoadedKextSummary &image_info, bool can_create, bool *did_create_ptr)
-{
-    if (did_create_ptr)
-        *did_create_ptr = false;
-    
-    const bool image_info_uuid_is_valid = image_info.uuid.IsValid();
-
-    if (image_info.module_sp)
-    {
-        if (image_info_uuid_is_valid)
-        {
-            if (image_info.module_sp->GetUUID() == image_info.uuid)
-                return true;
-            else
-                image_info.module_sp.reset();
-        }
-        else
-            return true;
-    }
-
-    ModuleList &target_images = m_process->GetTarget().GetImages();
-    if (image_info_uuid_is_valid)
-        image_info.module_sp = target_images.FindModule(image_info.uuid);
-    
-    if (image_info.module_sp)
-        return true;
-    
-    ArchSpec arch (image_info.GetArchitecture ());
-    if (can_create)
-    {
-        if (image_info_uuid_is_valid)
-        {
-            image_info.module_sp = m_process->GetTarget().GetSharedModule (FileSpec(),
-                                                                           arch,
-                                                                           &image_info.uuid);
-            if (did_create_ptr)
-                *did_create_ptr = image_info.module_sp;
-        }
-    }
-    return image_info.module_sp;
-}
-
-bool
-DynamicLoaderMacOSXKernel::UpdateCommPageLoadAddress(Module *module)
-{
-    bool changed = false;
-    if (module)
-    {
-        ObjectFile *image_object_file = module->GetObjectFile();
-        if (image_object_file)
-        {
-            SectionList *section_list = image_object_file->GetSectionList ();
-            if (section_list)
-            {
-                uint32_t num_sections = section_list->GetSize();
-                for (uint32_t i=0; i<num_sections; ++i)
-                {
-                    Section* section = section_list->GetSectionAtIndex (i).get();
-                    if (section)
-                    {
-                        const addr_t new_section_load_addr = section->GetFileAddress ();
-                        const addr_t old_section_load_addr = m_process->GetTarget().GetSectionLoadList().GetSectionLoadAddress (section);
-                        if (old_section_load_addr == LLDB_INVALID_ADDRESS ||
-                            old_section_load_addr != new_section_load_addr)
-                        {
-                            if (m_process->GetTarget().GetSectionLoadList().SetSectionLoadAddress (section, section->GetFileAddress ()))
-                                changed = true;
-                        }
-                    }
-                }
-            }
-        }
-    }
-    return changed;
-}
-
-//----------------------------------------------------------------------
-// Update the load addresses for all segments in MODULE using the
-// updated INFO that is passed in.
-//----------------------------------------------------------------------
-bool
-DynamicLoaderMacOSXKernel::UpdateImageLoadAddress (OSKextLoadedKextSummary& info)
-{
-    Module *module = info.module_sp.get();
-    bool changed = false;
-    if (module)
-    {
-        ObjectFile *image_object_file = module->GetObjectFile();
-        if (image_object_file)
-        {
-            SectionList *section_list = image_object_file->GetSectionList ();
-            if (section_list)
-            {
-                // We now know the slide amount, so go through all sections
-                // and update the load addresses with the correct values.
-                uint32_t num_segments = info.segments.size();
-                for (uint32_t i=0; i<num_segments; ++i)
-                {
-                    const addr_t new_section_load_addr = info.segments[i].vmaddr;
-                    if (section_list->FindSectionByName(info.segments[i].name))
-                    {
-                        SectionSP section_sp(section_list->FindSectionByName(info.segments[i].name));
-                        if (section_sp)
-                        {
-                            const addr_t old_section_load_addr = m_process->GetTarget().GetSectionLoadList().GetSectionLoadAddress (section_sp.get());
-                            if (old_section_load_addr == LLDB_INVALID_ADDRESS ||
-                                old_section_load_addr != new_section_load_addr)
-                            {
-                                if (m_process->GetTarget().GetSectionLoadList().SetSectionLoadAddress (section_sp.get(), new_section_load_addr))
-                                    changed = true;
-                            }
-                        }
-                        else
-                        {
-                            fprintf (stderr, 
-                                     "warning: unable to find and load segment named '%s' at 0x%llx in '%s/%s' in macosx dynamic loader plug-in.\n",
-                                     info.segments[i].name.AsCString("<invalid>"),
-                                     (uint64_t)new_section_load_addr,
-                                     image_object_file->GetFileSpec().GetDirectory().AsCString(),
-                                     image_object_file->GetFileSpec().GetFilename().AsCString());
-                        }
-                    }
-                    else
-                    {
-                        // The segment name is empty which means this is a .o file.
-                        // Object files in LLDB end up getting reorganized so that
-                        // the segment name that is in the section is promoted into
-                        // an actual segment, so we just need to go through all sections
-                        // and slide them by a single amount.
-                        
-                        uint32_t num_sections = section_list->GetSize();
-                        for (uint32_t i=0; i<num_sections; ++i)
-                        {
-                            Section* section = section_list->GetSectionAtIndex (i).get();
-                            if (section)
-                            {
-                                if (m_process->GetTarget().GetSectionLoadList().SetSectionLoadAddress (section, section->GetFileAddress() + new_section_load_addr))
-                                    changed = true;
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-    return changed;
-}
-
-//----------------------------------------------------------------------
-// Update the load addresses for all segments in MODULE using the
-// updated INFO that is passed in.
-//----------------------------------------------------------------------
-bool
-DynamicLoaderMacOSXKernel::UnloadImageLoadAddress (OSKextLoadedKextSummary& info)
-{
-    Module *module = info.module_sp.get();
-    bool changed = false;
-    if (module)
-    {
-        ObjectFile *image_object_file = module->GetObjectFile();
-        if (image_object_file)
-        {
-            SectionList *section_list = image_object_file->GetSectionList ();
-            if (section_list)
-            {
-                uint32_t num_segments = info.segments.size();
-                for (uint32_t i=0; i<num_segments; ++i)
-                {
-                    SectionSP section_sp(section_list->FindSectionByName(info.segments[i].name));
-                    if (section_sp)
-                    {
-                        const addr_t old_section_load_addr = info.segments[i].vmaddr;
-                        if (m_process->GetTarget().GetSectionLoadList().SetSectionUnloaded (section_sp.get(), old_section_load_addr))
-                            changed = true;
-                    }
-                    else
-                    {
-                        fprintf (stderr, 
-                                 "warning: unable to find and unload segment named '%s' in '%s/%s' in macosx dynamic loader plug-in.\n",
-                                 info.segments[i].name.AsCString("<invalid>"),
-                                 image_object_file->GetFileSpec().GetDirectory().AsCString(),
-                                 image_object_file->GetFileSpec().GetFilename().AsCString());
-                    }
-                }
-            }
-        }
-    }
-    return changed;
-}
-
-
-//----------------------------------------------------------------------
-// Static callback function that gets called when our DYLD notification
-// breakpoint gets hit. We update all of our image infos and then
-// let our super class DynamicLoader class decide if we should stop
-// or not (based on global preference).
-//----------------------------------------------------------------------
-bool
-DynamicLoaderMacOSXKernel::BreakpointHitCallback (void *baton, 
-                                                  StoppointCallbackContext *context, 
-                                                  user_id_t break_id, 
-                                                  user_id_t break_loc_id)
-{    
-    return static_cast<DynamicLoaderMacOSXKernel*>(baton)->BreakpointHit (context, break_id, break_loc_id);    
-}
-
-bool
-DynamicLoaderMacOSXKernel::BreakpointHit (StoppointCallbackContext *context, 
-                                          user_id_t break_id, 
-                                          user_id_t break_loc_id)
-{    
-    LogSP log(GetLogIfAnyCategoriesSet (LIBLLDB_LOG_DYNAMIC_LOADER));
-    if (log)
-        log->Printf ("DynamicLoaderMacOSXKernel::BreakpointHit (...)\n");
-
-    ReadAllKextSummaries ();
-    
-    if (log)
-        PutToLog(log.get());
-
-    return GetStopWhenImagesChange();
-}
-
-
-bool
-DynamicLoaderMacOSXKernel::ReadKextSummaryHeader ()
-{
-    Mutex::Locker locker(m_mutex);
-
-    // the all image infos is already valid for this process stop ID
-
-    m_kext_summaries.clear();
-    if (m_kext_summary_header_ptr_addr.IsValid())
-    {
-        const uint32_t addr_size = m_kernel.GetAddressByteSize ();
-        const ByteOrder byte_order = m_kernel.GetByteOrder();
-        Error error;
-        // Read enough bytes for a "OSKextLoadedKextSummaryHeader" structure
-        // which is currenty 4 uint32_t and a pointer.
-        uint8_t buf[24];
-        DataExtractor data (buf, sizeof(buf), byte_order, addr_size);
-        const size_t count = 4 * sizeof(uint32_t) + addr_size;
-        const bool prefer_file_cache = false;
-        if (m_process->GetTarget().ReadPointerFromMemory (m_kext_summary_header_ptr_addr, 
-                                                          prefer_file_cache,
-                                                          error,
-                                                          m_kext_summary_header_addr))
-        {
-            // We got a valid address for our kext summary header and make sure it isn't NULL
-            if (m_kext_summary_header_addr.IsValid() && 
-                m_kext_summary_header_addr.GetFileAddress() != 0)
-            {
-                const size_t bytes_read = m_process->GetTarget().ReadMemory (m_kext_summary_header_addr, prefer_file_cache, buf, count, error);
-                if (bytes_read == count)
-                {
-                    uint32_t offset = 0;
-                    m_kext_summary_header.version = data.GetU32(&offset);
-                    if (m_kext_summary_header.version >= 2)
-                    {
-                        m_kext_summary_header.entry_size = data.GetU32(&offset);
-                    }
-                    else
-                    {
-                        // Versions less than 2 didn't have an entry size, it was hard coded
-                        m_kext_summary_header.entry_size = KERNEL_MODULE_ENTRY_SIZE_VERSION_1;
-                    }
-                    m_kext_summary_header.entry_count = data.GetU32(&offset);
-                    return true;
-                }
-            }
-        }
-    }
-    m_kext_summary_header_addr.Clear();
-    return false;
-}
-
-
-bool
-DynamicLoaderMacOSXKernel::ParseKextSummaries (const Address &kext_summary_addr, 
-                                               uint32_t count)
-{
-    OSKextLoadedKextSummary::collection kext_summaries;
-    LogSP log(GetLogIfAnyCategoriesSet (LIBLLDB_LOG_DYNAMIC_LOADER));
-    if (log)
-        log->Printf ("Adding %d modules.\n");
-        
-    Mutex::Locker locker(m_mutex);
-
-    if (!ReadKextSummaries (kext_summary_addr, count, kext_summaries))
-        return false;
-
-    Stream *s = &m_process->GetTarget().GetDebugger().GetOutputStream();
-    for (uint32_t i = 0; i < count; i++)
-    {
-        if (s)
-        {
-            const uint8_t *u = (const uint8_t *)kext_summaries[i].uuid.GetBytes();
-            if (u)
-            {
-                s->Printf("Loading kext: %2.2X%2.2X%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X 0x%16.16llx \"%s\"...\n",
-                          u[ 0], u[ 1], u[ 2], u[ 3], u[ 4], u[ 5], u[ 6], u[ 7],
-                          u[ 8], u[ 9], u[10], u[11], u[12], u[13], u[14], u[15],
-                          kext_summaries[i].address, kext_summaries[i].name);
-            }   
-            else
-            {
-                s->Printf("0x%16.16llx \"%s\"...\n", kext_summaries[i].address, kext_summaries[i].name);
-            }
-        }
-        
-        DataExtractor data; // Load command data
-        if (ReadMachHeader (kext_summaries[i], &data))
-        {
-            ParseLoadCommands (data, kext_summaries[i]);
-        }
-        
-        if (s)
-        {
-            if (kext_summaries[i].module_sp)
-                s->Printf("  found kext: %s/%s\n", 
-                          kext_summaries[i].module_sp->GetFileSpec().GetDirectory().AsCString(),
-                          kext_summaries[i].module_sp->GetFileSpec().GetFilename().AsCString());
-        }
-            
-        if (log)
-            kext_summaries[i].PutToLog (log.get());
-    }
-    bool return_value = AddModulesUsingImageInfos (kext_summaries);
-    return return_value;
-}
-
-// Adds the modules in image_infos to m_kext_summaries.  
-// NB don't call this passing in m_kext_summaries.
-
-bool
-DynamicLoaderMacOSXKernel::AddModulesUsingImageInfos (OSKextLoadedKextSummary::collection &image_infos)
-{
-    // Now add these images to the main list.
-    ModuleList loaded_module_list;
-    
-    for (uint32_t idx = 0; idx < image_infos.size(); ++idx)
-    {
-        m_kext_summaries.push_back(image_infos[idx]);
-        
-        if (FindTargetModule (image_infos[idx], true, NULL))
-        {
-            // UpdateImageLoadAddress will return true if any segments
-            // change load address. We need to check this so we don't
-            // mention that all loaded shared libraries are newly loaded
-            // each time we hit out dyld breakpoint since dyld will list all
-            // shared libraries each time.
-            if (UpdateImageLoadAddress (image_infos[idx]))
-            {
-                loaded_module_list.AppendIfNeeded (image_infos[idx].module_sp);
-            }
-        }
-    }
-    
-    if (loaded_module_list.GetSize() > 0)
-    {
-        // FIXME: This should really be in the Runtime handlers class, which should get
-        // called by the target's ModulesDidLoad, but we're doing it all locally for now 
-        // to save time.
-        // Also, I'm assuming there can be only one libobjc dylib loaded...
-        
-        ObjCLanguageRuntime *objc_runtime = m_process->GetObjCLanguageRuntime();
-        if (objc_runtime != NULL && !objc_runtime->HasReadObjCLibrary())
-        {
-            size_t num_modules = loaded_module_list.GetSize();
-            for (int i = 0; i < num_modules; i++)
-            {
-                if (objc_runtime->IsModuleObjCLibrary (loaded_module_list.GetModuleAtIndex (i)))
-                {
-                    objc_runtime->ReadObjCLibrary (loaded_module_list.GetModuleAtIndex (i));
-                    break;
-                }
-            }
-        }
-//        if (log)
-//            loaded_module_list.LogUUIDAndPaths (log, "DynamicLoaderMacOSXKernel::ModulesDidLoad");
-        m_process->GetTarget().ModulesDidLoad (loaded_module_list);
-    }
-    return true;
-}
-
-
-uint32_t
-DynamicLoaderMacOSXKernel::ReadKextSummaries (const Address &kext_summary_addr,
-                                              uint32_t image_infos_count, 
-                                              OSKextLoadedKextSummary::collection &image_infos)
-{
-    const ByteOrder endian = m_kernel.GetByteOrder();
-    const uint32_t addr_size = m_kernel.GetAddressByteSize();
-
-    image_infos.resize(image_infos_count);
-    const size_t count = image_infos.size() * m_kext_summary_header.entry_size;
-    DataBufferHeap data(count, 0);
-    Error error;
-    
-    Stream *s = &m_process->GetTarget().GetDebugger().GetOutputStream();
-
-    if (s)
-        s->Printf ("Reading %u kext summaries...\n", image_infos_count);
-    const bool prefer_file_cache = false;
-    const size_t bytes_read = m_process->GetTarget().ReadMemory (kext_summary_addr, 
-                                                                 prefer_file_cache,
-                                                                 data.GetBytes(), 
-                                                                 data.GetByteSize(),
-                                                                 error);
-    if (bytes_read == count)
-    {
-        
-        DataExtractor extractor (data.GetBytes(), data.GetByteSize(), endian, addr_size);
-        uint32_t i=0;
-        for (uint32_t kext_summary_offset = 0;
-             i < image_infos.size() && extractor.ValidOffsetForDataOfSize(kext_summary_offset, m_kext_summary_header.entry_size); 
-             ++i, kext_summary_offset += m_kext_summary_header.entry_size)
-        {
-            uint32_t offset = kext_summary_offset;
-            const void *name_data = extractor.GetData(&offset, KERNEL_MODULE_MAX_NAME);
-            if (name_data == NULL)
-                break;
-            memcpy (image_infos[i].name, name_data, KERNEL_MODULE_MAX_NAME);
-            image_infos[i].uuid.SetBytes(extractor.GetData (&offset, 16));
-            image_infos[i].address          = extractor.GetU64(&offset);
-            if (!image_infos[i].so_address.SetLoadAddress (image_infos[i].address, &m_process->GetTarget()))
-                m_process->GetTarget().GetImages().ResolveFileAddress (image_infos[i].address, image_infos[i].so_address);
-            image_infos[i].size             = extractor.GetU64(&offset);
-            image_infos[i].version          = extractor.GetU64(&offset);
-            image_infos[i].load_tag         = extractor.GetU32(&offset);
-            image_infos[i].flags            = extractor.GetU32(&offset);
-            if ((offset - kext_summary_offset) < m_kext_summary_header.entry_size)
-            {
-                image_infos[i].reference_list = extractor.GetU64(&offset);
-            }
-            else
-            {
-                image_infos[i].reference_list = 0;
-            }
-        }
-        if (i < image_infos.size())
-            image_infos.resize(i);
-    }
-    else
-    {
-        image_infos.clear();
-    }
-    return image_infos.size();
-}
-
-bool
-DynamicLoaderMacOSXKernel::ReadAllKextSummaries ()
-{
-    LogSP log(GetLogIfAnyCategoriesSet (LIBLLDB_LOG_DYNAMIC_LOADER));
-    
-    Mutex::Locker locker(m_mutex);
-    
-    if (ReadKextSummaryHeader ())
-    {
-        if (m_kext_summary_header.entry_count > 0 && m_kext_summary_header_addr.IsValid())
-        {
-            Address summary_addr (m_kext_summary_header_addr);
-            summary_addr.Slide(m_kext_summary_header.GetSize());
-            if (!ParseKextSummaries (summary_addr, m_kext_summary_header.entry_count))
-            {
-                m_kext_summaries.clear();
-            }
-            return true;
-        }
-    }
-    return false;
-}
-
-//----------------------------------------------------------------------
-// Read a mach_header at ADDR into HEADER, and also fill in the load
-// command data into LOAD_COMMAND_DATA if it is non-NULL.
-//
-// Returns true if we succeed, false if we fail for any reason.
-//----------------------------------------------------------------------
-bool
-DynamicLoaderMacOSXKernel::ReadMachHeader (OSKextLoadedKextSummary& kext_summary, DataExtractor *load_command_data)
-{
-    DataBufferHeap header_bytes(sizeof(llvm::MachO::mach_header), 0);
-    Error error;
-    const bool prefer_file_cache = false;
-    size_t bytes_read = m_process->GetTarget().ReadMemory (kext_summary.so_address,
-                                                           prefer_file_cache,
-                                                           header_bytes.GetBytes(), 
-                                                           header_bytes.GetByteSize(), 
-                                                           error);
-    if (bytes_read == sizeof(llvm::MachO::mach_header))
-    {
-        uint32_t offset = 0;
-        ::memset (&kext_summary.header, 0, sizeof(kext_summary.header));
-
-        // Get the magic byte unswapped so we can figure out what we are dealing with
-        DataExtractor data(header_bytes.GetBytes(), header_bytes.GetByteSize(), endian::InlHostByteOrder(), 4);
-        kext_summary.header.magic = data.GetU32(&offset);
-        Address load_cmd_addr = kext_summary.so_address;
-        data.SetByteOrder(DynamicLoaderMacOSXKernel::GetByteOrderFromMagic(kext_summary.header.magic));
-        switch (kext_summary.header.magic)
-        {
-        case llvm::MachO::HeaderMagic32:
-        case llvm::MachO::HeaderMagic32Swapped:
-            data.SetAddressByteSize(4);
-            load_cmd_addr.Slide (sizeof(llvm::MachO::mach_header));
-            break;
-
-        case llvm::MachO::HeaderMagic64:
-        case llvm::MachO::HeaderMagic64Swapped:
-            data.SetAddressByteSize(8);
-            load_cmd_addr.Slide (sizeof(llvm::MachO::mach_header_64));
-            break;
-
-        default:
-            return false;
-        }
-
-        // Read the rest of dyld's mach header
-        if (data.GetU32(&offset, &kext_summary.header.cputype, (sizeof(llvm::MachO::mach_header)/sizeof(uint32_t)) - 1))
-        {
-            if (load_command_data == NULL)
-                return true; // We were able to read the mach_header and weren't asked to read the load command bytes
-
-            DataBufferSP load_cmd_data_sp(new DataBufferHeap(kext_summary.header.sizeofcmds, 0));
-
-            size_t load_cmd_bytes_read = m_process->GetTarget().ReadMemory (load_cmd_addr, 
-                                                                            prefer_file_cache,
-                                                                            load_cmd_data_sp->GetBytes(), 
-                                                                            load_cmd_data_sp->GetByteSize(),
-                                                                            error);
-            
-            if (load_cmd_bytes_read == kext_summary.header.sizeofcmds)
-            {
-                // Set the load command data and also set the correct endian
-                // swap settings and the correct address size
-                load_command_data->SetData(load_cmd_data_sp, 0, kext_summary.header.sizeofcmds);
-                load_command_data->SetByteOrder(data.GetByteOrder());
-                load_command_data->SetAddressByteSize(data.GetAddressByteSize());
-                return true; // We successfully read the mach_header and the load command data
-            }
-
-            return false; // We weren't able to read the load command data
-        }
-    }
-    return false; // We failed the read the mach_header
-}
-
-
-//----------------------------------------------------------------------
-// Parse the load commands for an image
-//----------------------------------------------------------------------
-uint32_t
-DynamicLoaderMacOSXKernel::ParseLoadCommands (const DataExtractor& data, OSKextLoadedKextSummary& image_info)
-{
-    uint32_t offset = 0;
-    uint32_t cmd_idx;
-    Segment segment;
-    image_info.Clear (true);
-
-    for (cmd_idx = 0; cmd_idx < image_info.header.ncmds; cmd_idx++)
-    {
-        // Clear out any load command specific data from image_info since
-        // we are about to read it.
-
-        if (data.ValidOffsetForDataOfSize (offset, sizeof(llvm::MachO::load_command)))
-        {
-            llvm::MachO::load_command load_cmd;
-            uint32_t load_cmd_offset = offset;
-            load_cmd.cmd = data.GetU32 (&offset);
-            load_cmd.cmdsize = data.GetU32 (&offset);
-            switch (load_cmd.cmd)
-            {
-            case llvm::MachO::LoadCommandSegment32:
-                {
-                    segment.name.SetTrimmedCStringWithLength ((const char *)data.GetData(&offset, 16), 16);
-                    // We are putting 4 uint32_t values 4 uint64_t values so
-                    // we have to use multiple 32 bit gets below.
-                    segment.vmaddr = data.GetU32 (&offset);
-                    segment.vmsize = data.GetU32 (&offset);
-                    segment.fileoff = data.GetU32 (&offset);
-                    segment.filesize = data.GetU32 (&offset);
-                    // Extract maxprot, initprot, nsects and flags all at once
-                    data.GetU32(&offset, &segment.maxprot, 4);
-                    image_info.segments.push_back (segment);
-                }
-                break;
-
-            case llvm::MachO::LoadCommandSegment64:
-                {
-                    segment.name.SetTrimmedCStringWithLength ((const char *)data.GetData(&offset, 16), 16);
-                    // Extract vmaddr, vmsize, fileoff, and filesize all at once
-                    data.GetU64(&offset, &segment.vmaddr, 4);
-                    // Extract maxprot, initprot, nsects and flags all at once
-                    data.GetU32(&offset, &segment.maxprot, 4);
-                    image_info.segments.push_back (segment);
-                }
-                break;
-
-            case llvm::MachO::LoadCommandUUID:
-                image_info.uuid.SetBytes(data.GetData (&offset, 16));
-                break;
-
-            default:
-                break;
-            }
-            // Set offset to be the beginning of the next load command.
-            offset = load_cmd_offset + load_cmd.cmdsize;
-        }
-    }
-#if 0
-    // No slide in the kernel...
-    
-    // All sections listed in the dyld image info structure will all
-    // either be fixed up already, or they will all be off by a single
-    // slide amount that is determined by finding the first segment
-    // that is at file offset zero which also has bytes (a file size
-    // that is greater than zero) in the object file.
-    
-    // Determine the slide amount (if any)
-    const size_t num_sections = image_info.segments.size();
-    for (size_t i = 0; i < num_sections; ++i)
-    {
-        // Iterate through the object file sections to find the
-        // first section that starts of file offset zero and that
-        // has bytes in the file...
-        if (image_info.segments[i].fileoff == 0 && image_info.segments[i].filesize > 0)
-        {
-            image_info.slide = image_info.address - image_info.segments[i].vmaddr;
-            // We have found the slide amount, so we can exit
-            // this for loop.
-            break;
-        }
-    }
-#endif
-    if (image_info.uuid.IsValid())
-    {
-        bool did_create = false;
-        if (FindTargetModule(image_info, true, &did_create))
-        {
-            if (did_create)
-                image_info.module_create_stop_id = m_process->GetStopID();
-        }
-    }
-    return cmd_idx;
-}
-
-//----------------------------------------------------------------------
-// Dump a Segment to the file handle provided.
-//----------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::Segment::PutToLog (Log *log, addr_t slide) const
-{
-    if (log)
-    {
-        if (slide == 0)
-            log->Printf ("\t\t%16s [0x%16.16llx - 0x%16.16llx)", 
-                         name.AsCString(""), 
-                         vmaddr + slide, 
-                         vmaddr + slide + vmsize);
-        else
-            log->Printf ("\t\t%16s [0x%16.16llx - 0x%16.16llx) slide = 0x%llx", 
-                         name.AsCString(""), 
-                         vmaddr + slide, 
-                         vmaddr + slide + vmsize, 
-                         slide);
-    }
-}
-
-const DynamicLoaderMacOSXKernel::Segment *
-DynamicLoaderMacOSXKernel::OSKextLoadedKextSummary::FindSegment (const ConstString &name) const
-{
-    const size_t num_segments = segments.size();
-    for (size_t i=0; i<num_segments; ++i)
-    {
-        if (segments[i].name == name)
-            return &segments[i];
-    }
-    return NULL;
-}
-
-
-//----------------------------------------------------------------------
-// Dump an image info structure to the file handle provided.
-//----------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::OSKextLoadedKextSummary::PutToLog (Log *log) const
-{
-    if (log == NULL)
-        return;
-    const uint8_t *u = (uint8_t *)uuid.GetBytes();
-
-    if (address == LLDB_INVALID_ADDRESS)
-    {
-        if (u)
-        {
-            log->Printf("\tuuid=%2.2X%2.2X%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X name=\"%s\" (UNLOADED)",
-                        u[ 0], u[ 1], u[ 2], u[ 3],
-                        u[ 4], u[ 5], u[ 6], u[ 7],
-                        u[ 8], u[ 9], u[10], u[11],
-                        u[12], u[13], u[14], u[15],
-                        name);
-        }
-        else
-            log->Printf("\tname=\"%s\" (UNLOADED)", name);
-    }
-    else
-    {
-        if (u)
-        {
-            log->Printf("\taddr=0x%16.16llx size=0x%16.16llx version=0x%16.16llx load-tag=0x%8.8x flags=0x%8.8x ref-list=0x%16.16llx uuid=%2.2X%2.2X%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X name=\"%s\"",
-                        address, size, version, load_tag, flags, reference_list,
-                        u[ 0], u[ 1], u[ 2], u[ 3], u[ 4], u[ 5], u[ 6], u[ 7],
-                        u[ 8], u[ 9], u[10], u[11], u[12], u[13], u[14], u[15],
-                        name);
-        }
-        else
-        {
-            log->Printf("\t[0x%16.16llx - 0x%16.16llx) version=0x%16.16llx load-tag=0x%8.8x flags=0x%8.8x ref-list=0x%16.16llx name=\"%s\"",
-                        address, address+size, version, load_tag, flags, reference_list,
-                        name);
-        }
-        for (uint32_t i=0; i<segments.size(); ++i)
-            segments[i].PutToLog(log, 0);
-    }
-}
-
-//----------------------------------------------------------------------
-// Dump the _dyld_all_image_infos members and all current image infos
-// that we have parsed to the file handle provided.
-//----------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::PutToLog(Log *log) const
-{
-    if (log == NULL)
-        return;
-
-    Mutex::Locker locker(m_mutex);
-    log->Printf("gLoadedKextSummaries = 0x%16.16llx { version=%u, entry_size=%u, entry_count=%u }",
-                m_kext_summary_header_addr.GetFileAddress(),
-                m_kext_summary_header.version,
-                m_kext_summary_header.entry_size,
-                m_kext_summary_header.entry_count);
-
-    size_t i;
-    const size_t count = m_kext_summaries.size();
-    if (count > 0)
-    {
-        log->PutCString("Loaded:");
-        for (i = 0; i<count; i++)
-            m_kext_summaries[i].PutToLog(log);
-    }
-}
-
-void
-DynamicLoaderMacOSXKernel::PrivateInitialize(Process *process)
-{
-    DEBUG_PRINTF("DynamicLoaderMacOSXKernel::%s() process state = %s\n", __FUNCTION__, StateAsCString(m_process->GetState()));
-    Clear(true);
-    m_process = process;
-    m_process->GetTarget().GetSectionLoadList().Clear();
-}
-
-void
-DynamicLoaderMacOSXKernel::SetNotificationBreakpointIfNeeded ()
-{
-    if (m_break_id == LLDB_INVALID_BREAK_ID)
-    {
-        DEBUG_PRINTF("DynamicLoaderMacOSXKernel::%s() process state = %s\n", __FUNCTION__, StateAsCString(m_process->GetState()));
-
-        
-        const bool internal_bp = false;
-        const LazyBool skip_prologue = eLazyBoolNo;
-        Breakpoint *bp = m_process->GetTarget().CreateBreakpoint (&m_kernel.module_sp->GetFileSpec(),
-                                                                  "OSKextLoadedKextSummariesUpdated",
-                                                                  eFunctionNameTypeFull,
-                                                                  internal_bp,
-                                                                  skip_prologue).get();
-
-        bp->SetCallback (DynamicLoaderMacOSXKernel::BreakpointHitCallback, this, true);
-        m_break_id = bp->GetID();
-    }
-}
-
-//----------------------------------------------------------------------
-// Member function that gets called when the process state changes.
-//----------------------------------------------------------------------
-void
-DynamicLoaderMacOSXKernel::PrivateProcessStateChanged (Process *process, StateType state)
-{
-    DEBUG_PRINTF("DynamicLoaderMacOSXKernel::%s(%s)\n", __FUNCTION__, StateAsCString(state));
-    switch (state)
-    {
-    case eStateConnected:
-    case eStateAttaching:
-    case eStateLaunching:
-    case eStateInvalid:
-    case eStateUnloaded:
-    case eStateExited:
-    case eStateDetached:
-        Clear(false);
-        break;
-
-    case eStateStopped:
-        UpdateIfNeeded();
-        break;
-
-    case eStateRunning:
-    case eStateStepping:
-    case eStateCrashed:
-    case eStateSuspended:
-        break;
-
-    default:
-        break;
-    }
-}
-
-ThreadPlanSP
-DynamicLoaderMacOSXKernel::GetStepThroughTrampolinePlan (Thread &thread, bool stop_others)
-{
-    ThreadPlanSP thread_plan_sp;
-    LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
-    if (log)
-        log->Printf ("Could not find symbol for step through.");
-    return thread_plan_sp;
-}
-
-Error
-DynamicLoaderMacOSXKernel::CanLoadImage ()
-{
-    Error error;
-    error.SetErrorString("always unsafe to load or unload shared libraries in the darwin kernel");
-    return error;
-}
-
-void
-DynamicLoaderMacOSXKernel::Initialize()
-{
-    PluginManager::RegisterPlugin (GetPluginNameStatic(),
-                                   GetPluginDescriptionStatic(),
-                                   CreateInstance);
-}
-
-void
-DynamicLoaderMacOSXKernel::Terminate()
-{
-    PluginManager::UnregisterPlugin (CreateInstance);
-}
-
-
-const char *
-DynamicLoaderMacOSXKernel::GetPluginNameStatic()
-{
-    return "dynamic-loader.macosx-kernel";
-}
-
-const char *
-DynamicLoaderMacOSXKernel::GetPluginDescriptionStatic()
-{
-    return "Dynamic loader plug-in that watches for shared library loads/unloads in the MacOSX kernel.";
-}
-
-
-//------------------------------------------------------------------
-// PluginInterface protocol
-//------------------------------------------------------------------
-const char *
-DynamicLoaderMacOSXKernel::GetPluginName()
-{
-    return "DynamicLoaderMacOSXKernel";
-}
-
-const char *
-DynamicLoaderMacOSXKernel::GetShortPluginName()
-{
-    return GetPluginNameStatic();
-}
-
-uint32_t
-DynamicLoaderMacOSXKernel::GetPluginVersion()
-{
-    return 1;
-}
-