void
MemoryView::_HandleContextMenu(BPoint point)
{
int32 offset = _GetOffsetAt(point);
if (offset < fSelectionStart || offset > fSelectionEnd)
return;
BPopUpMenu* menu = new(std::nothrow) BPopUpMenu("Options");
if (menu == NULL)
return;
ObjectDeleter<BPopUpMenu> menuDeleter(menu);
ObjectDeleter<BMenuItem> itemDeleter;
ObjectDeleter<BMessage> messageDeleter;
BMessage* message = NULL;
BMenuItem* item = NULL;
if (fSelectionEnd - fSelectionStart == fTargetAddressSize / 2) {
BMessage* message = new(std::nothrow) BMessage(MSG_INSPECT_ADDRESS);
if (message == NULL)
return;
target_addr_t address;
if (fTargetAddressSize == 8)
address = *((uint32*)(fTargetBlock->Data() + fSelectionStart));
else
address = *((uint64*)(fTargetBlock->Data() + fSelectionStart));
if (fCurrentEndianMode == EndianModeBigEndian)
address = B_HOST_TO_BENDIAN_INT64(address);
else
address = B_HOST_TO_LENDIAN_INT64(address);
messageDeleter.SetTo(message);
message->AddUInt64("address", address);
BMenuItem* item = new(std::nothrow) BMenuItem("Inspect", message);
if (item == NULL)
return;
messageDeleter.Detach();
itemDeleter.SetTo(item);
if (!menu->AddItem(item))
return;
item->SetTarget(Looper());
itemDeleter.Detach();
}
message = new(std::nothrow) BMessage(B_COPY);
if (message == NULL)
return;
messageDeleter.SetTo(message);
item = new(std::nothrow) BMenuItem("Copy", message);
if (item == NULL)
return;
messageDeleter.Detach();
itemDeleter.SetTo(item);
if (!menu->AddItem(item))
return;
item->SetTarget(this);
itemDeleter.Detach();
menuDeleter.Detach();
BPoint screenWhere(point);
ConvertToScreen(&screenWhere);
BRect mouseRect(screenWhere, screenWhere);
mouseRect.InsetBy(-4.0, -4.0);
menu->Go(screenWhere, true, false, mouseRect, true);
}
/*static*/ status_t
Inode::Create(Transaction& transaction, Inode* parent, const char* name,
int32 mode, int openMode, uint8 type, bool* _created, ino_t* _id,
Inode** _inode, fs_vnode_ops* vnodeOps, uint32 publishFlags)
{
TRACE("Inode::Create()\n");
Volume* volume = transaction.GetVolume();
DirectoryIterator* entries = NULL;
ObjectDeleter<DirectoryIterator> entriesDeleter;
if (parent != NULL) {
parent->WriteLockInTransaction(transaction);
TRACE("Inode::Create(): Looking up entry destination\n");
HTree htree(volume, parent);
status_t status = htree.Lookup(name, &entries);
if (status == B_ENTRY_NOT_FOUND) {
panic("We need to add the first node.\n");
return B_ERROR;
}
if (status != B_OK)
return status;
entriesDeleter.SetTo(entries);
TRACE("Inode::Create(): Looking up to see if file already exists\n");
ino_t entryID;
status = entries->FindEntry(name, &entryID);
if (status == B_OK) {
// File already exists
TRACE("Inode::Create(): File already exists\n");
if (S_ISDIR(mode) || S_ISLNK(mode) || (openMode & O_EXCL) != 0)
return B_FILE_EXISTS;
Vnode vnode(volume, entryID);
Inode* inode;
status = vnode.Get(&inode);
if (status != B_OK) {
TRACE("Inode::Create() Failed to get the inode from the "
"vnode\n");
return B_ENTRY_NOT_FOUND;
}
if (inode->IsDirectory() && (openMode & O_RWMASK) != O_RDONLY)
return B_IS_A_DIRECTORY;
if ((openMode & O_DIRECTORY) != 0 && !inode->IsDirectory())
return B_NOT_A_DIRECTORY;
if (inode->CheckPermissions(open_mode_to_access(openMode)
| ((openMode & O_TRUNC) != 0 ? W_OK : 0)) != B_OK)
return B_NOT_ALLOWED;
if ((openMode & O_TRUNC) != 0) {
// Truncate requested
TRACE("Inode::Create(): Truncating file\n");
inode->WriteLockInTransaction(transaction);
status = inode->Resize(transaction, 0);
if (status != B_OK)
return status;
}
if (_created != NULL)
*_created = false;
if (_id != NULL)
*_id = inode->ID();
if (_inode != NULL)
*_inode = inode;
if (_id != NULL || _inode != NULL)
vnode.Keep();
TRACE("Inode::Create(): Done opening file\n");
return B_OK;
/*} else if ((mode & S_ATTR_DIR) == 0) {
TRACE("Inode::Create(): (mode & S_ATTR_DIR) == 0\n");
return B_BAD_VALUE;*/
} else if ((openMode & O_DIRECTORY) != 0) {
TRACE("Inode::Create(): (openMode & O_DIRECTORY) != 0\n");
return B_ENTRY_NOT_FOUND;
}
// Return to initial position
TRACE("Inode::Create(): Restarting iterator\n");
entries->Restart();
}
status_t status;
if (parent != NULL) {
status = parent->CheckPermissions(W_OK);
if (status != B_OK)
return status;
}
TRACE("Inode::Create(): Allocating inode\n");
ino_t id;
status = volume->AllocateInode(transaction, parent, mode, id);
if (status != B_OK) {
ERROR("Inode::Create(): AllocateInode() failed\n");
return status;
}
if (entries != NULL) {
size_t nameLength = strlen(name);
status = entries->AddEntry(transaction, name, nameLength, id, type);
if (status != B_OK) {
ERROR("Inode::Create(): AddEntry() failed\n");
return status;
}
}
TRACE("Inode::Create(): Creating inode\n");
Inode* inode = new(std::nothrow) Inode(volume);
if (inode == NULL)
return B_NO_MEMORY;
TRACE("Inode::Create(): Getting node structure\n");
ext2_inode& node = inode->Node();
TRACE("Inode::Create(): Initializing inode data\n");
memset(&node, 0, sizeof(ext2_inode));
node.SetMode(mode);
node.SetUserID(geteuid());
node.SetGroupID(parent != NULL ? parent->Node().GroupID() : getegid());
node.SetNumLinks(inode->IsDirectory() ? 2 : 1);
TRACE("Inode::Create(): Updating time\n");
struct timespec timespec;
_BigtimeToTimespec(real_time_clock_usecs(), ×pec);
inode->SetAccessTime(×pec);
inode->SetCreationTime(×pec);
inode->SetModificationTime(×pec);
node.SetFlags(parent->Flags() & EXT2_INODE_INHERITED);
if (volume->HasExtentsFeature()
&& (inode->IsDirectory() || inode->IsFile())) {
node.SetFlag(EXT2_INODE_EXTENTS);
ExtentStream stream(volume, &node.extent_stream, 0);
stream.Init();
ASSERT(stream.Check());
}
if (sizeof(ext2_inode) < volume->InodeSize())
node.SetExtraInodeSize(sizeof(ext2_inode) - EXT2_INODE_NORMAL_SIZE);
TRACE("Inode::Create(): Updating ID\n");
inode->fID = id;
if (inode->IsDirectory()) {
TRACE("Inode::Create(): Initializing directory\n");
status = inode->InitDirectory(transaction, parent);
if (status != B_OK) {
ERROR("Inode::Create(): InitDirectory() failed\n");
delete inode;
return status;
}
}
// TODO: Maybe it can be better
/*if (volume->HasExtendedAttributes()) {
TRACE("Inode::Create(): Initializing extended attributes\n");
uint32 blockGroup = 0;
uint32 pos = 0;
uint32 allocated;
status = volume->AllocateBlocks(transaction, 1, 1, blockGroup, pos,
allocated);
if (status != B_OK)
return status;
// Clear the new block
uint32 blockNum = volume->FirstDataBlock() + pos +
volume->BlocksPerGroup() * blockGroup;
CachedBlock cached(volume);
cached.SetToWritable(transaction, blockNum, true);
node.SetExtendedAttributesBlock(blockNum);
}*/
TRACE("Inode::Create(): Saving inode\n");
status = inode->WriteBack(transaction);
if (status != B_OK) {
delete inode;
return status;
}
TRACE("Inode::Create(): Creating vnode\n");
Vnode vnode;
status = vnode.Publish(transaction, inode, vnodeOps, publishFlags);
if (status != B_OK)
return status;
if (!inode->IsSymLink()) {
// Vnode::Publish doesn't publish symlinks
if (!inode->IsDirectory()) {
status = inode->EnableFileCache();
if (status != B_OK)
return status;
}
inode->WriteLockInTransaction(transaction);
}
if (_created)
*_created = true;
if (_id != NULL)
*_id = id;
if (_inode != NULL)
*_inode = inode;
if (_id != NULL || _inode != NULL)
vnode.Keep();
TRACE("Inode::Create(): Deleting entries iterator\n");
DirectoryIterator* iterator = entriesDeleter.Detach();
TRACE("Inode::Create(): Entries iterator: %p\n", entries);
delete iterator;
TRACE("Inode::Create(): Done\n");
return B_OK;
}
status_t
Architecture::CreateStackTrace(Team* team,
ImageDebugInfoProvider* imageInfoProvider, CpuState* cpuState,
StackTrace*& _stackTrace, int32 maxStackDepth, bool useExistingTrace)
{
BReference<CpuState> cpuStateReference(cpuState);
StackTrace* stackTrace = NULL;
ObjectDeleter<StackTrace> stackTraceDeleter;
StackFrame* frame = NULL;
if (useExistingTrace)
stackTrace = _stackTrace;
else {
// create the object
stackTrace = new(std::nothrow) StackTrace;
if (stackTrace == NULL)
return B_NO_MEMORY;
stackTraceDeleter.SetTo(stackTrace);
}
// if we're passed an already existing partial stack trace,
// attempt to continue building it from where it left off.
if (stackTrace->CountFrames() > 0) {
frame = stackTrace->FrameAt(stackTrace->CountFrames() - 1);
cpuState = frame->GetCpuState();
}
while (cpuState != NULL) {
// get the instruction pointer
target_addr_t instructionPointer = cpuState->InstructionPointer();
if (instructionPointer == 0)
break;
// get the image for the instruction pointer
AutoLocker<Team> teamLocker(team);
Image* image = team->ImageByAddress(instructionPointer);
BReference<Image> imageReference(image);
teamLocker.Unlock();
// get the image debug info
ImageDebugInfo* imageDebugInfo = NULL;
if (image != NULL)
imageInfoProvider->GetImageDebugInfo(image, imageDebugInfo);
BReference<ImageDebugInfo> imageDebugInfoReference(imageDebugInfo,
true);
// get the function
teamLocker.Lock();
FunctionInstance* function = NULL;
FunctionDebugInfo* functionDebugInfo = NULL;
if (imageDebugInfo != NULL) {
function = imageDebugInfo->FunctionAtAddress(instructionPointer);
if (function != NULL)
functionDebugInfo = function->GetFunctionDebugInfo();
}
BReference<FunctionInstance> functionReference(function);
teamLocker.Unlock();
// If the CPU state's instruction pointer is actually the return address
// of the next frame, we let the architecture fix that.
if (frame != NULL
&& frame->ReturnAddress() == cpuState->InstructionPointer()) {
UpdateStackFrameCpuState(frame, image,
functionDebugInfo, cpuState);
}
// create the frame using the debug info
StackFrame* previousFrame = NULL;
CpuState* previousCpuState = NULL;
if (function != NULL) {
status_t error = functionDebugInfo->GetSpecificImageDebugInfo()
->CreateFrame(image, function, cpuState, previousFrame,
previousCpuState);
if (error != B_OK && error != B_UNSUPPORTED)
break;
}
// If we have no frame yet, let the architecture create it.
if (previousFrame == NULL) {
status_t error = CreateStackFrame(image, functionDebugInfo,
cpuState, frame == NULL, previousFrame, previousCpuState);
if (error != B_OK)
break;
}
cpuStateReference.SetTo(previousCpuState, true);
previousFrame->SetImage(image);
previousFrame->SetFunction(function);
if (!stackTrace->AddFrame(previousFrame)) {
delete previousFrame;
return B_NO_MEMORY;
}
frame = previousFrame;
cpuState = previousCpuState;
if (--maxStackDepth == 0)
break;
}
stackTraceDeleter.Detach();
_stackTrace = stackTrace;
return B_OK;
}
status_t
MessagingService::_AllocateCommand(int32 commandWhat, int32 size,
MessagingArea *&area, void *&data, bool &wasEmpty)
{
if (!fFirstArea)
return B_NO_INIT;
if (!MessagingArea::CheckCommandSize(size))
return B_BAD_VALUE;
// delete the discarded areas (save one)
ObjectDeleter<MessagingArea> discardedAreaDeleter;
MessagingArea *discardedArea = NULL;
while (fFirstArea != fLastArea) {
area = fFirstArea;
area->Lock();
if (!area->IsEmpty()) {
area->Unlock();
break;
}
PRINT(("MessagingService::_AllocateCommand(): Discarding area: %p\n",
area));
fFirstArea = area->NextArea();
area->SetNextArea(NULL);
discardedArea = area;
discardedAreaDeleter.SetTo(area);
}
// allocate space for the command in the last area
area = fLastArea;
area->Lock();
data = area->AllocateCommand(commandWhat, size, wasEmpty);
if (!data) {
// not enough space in the last area: create a new area or reuse a
// discarded one
if (discardedArea) {
area = discardedAreaDeleter.Detach();
area->InitHeader();
PRINT(("MessagingService::_AllocateCommand(): Not enough space "
"left in current area. Recycling discarded one: %p\n", area));
} else {
area = MessagingArea::Create(fLockSem, fCounterSem);
PRINT(("MessagingService::_AllocateCommand(): Not enough space "
"left in current area. Allocated new one: %p\n", area));
}
if (!area) {
fLastArea->Unlock();
return B_NO_MEMORY;
}
// add the new area
fLastArea->SetNextArea(area);
fLastArea->Unlock();
fLastArea = area;
// allocate space for the command
data = area->AllocateCommand(commandWhat, size, wasEmpty);
if (!data) {
// that should never happen
area->Unlock();
return B_NO_MEMORY;
}
}
return B_OK;
}