.dg (Display Global Memory)

.dg [object]
 

The .dg command displays a list of the global memory objects in the global heap. The command displays information in much the same way as the HEAPWALK application.

object

Specifies the first object to be listed. The object parameter can be a handle, a selector, or a heap address.

The list has the following form:

address: size segment-type owner [handle flags chain]
 

address

Specifies physical and heap addresses.

size

Specifies the size of the object, in bytes.

segment-type

Specifies the type of object. The type can be any one of the following:

Type	Description
CODE	Segment contains application code.
DATA	Segment contains application data and possible stack and local heap data.
FREE	Segment belongs to pool of free memory objects ready for allocation by an application.
PRIV	Segment contains private data.
SENTINAL	Segment marks the beginning or end of the global heap.

owner

Specifies the module name of the application or library that allocated the memory object. The acronym PDB is used for memory objects that represent process descriptor blocks. These blocks contain execution information about applications.

handle

Specifies the handle of the global memory object. If the debugger displays no handle, the segment is fixed.

flags

Specifies either of the following:

Flag	Description
D	The segment is movable and discardable.
L	The segment is locked. If the segment is locked, the lock count appears to the right of the flag.

If the debugger displays a handle but no flag, the segment is movable but not discardable.

chain

Specifies the previous and next addresses in the list of least recently used (LRU) objects. Addresses are displayed only if the segment is movable and discardable (specified by the D flag).