EPTRACE Manual

Glossary
EPTRACE Manual528811-002
Glossary-12
shared memory
Servers are designed to receive request messages from clients or requesters; perform
the desired operations, such as database inquiries or updates, security verifications,
numerical calculations, or data routing to other computer systems; and return reply
messages to the clients or requesters. A server process is a running instance of a
server program.
shared memory. An interprocess communication mechanism that allows two or more
processes to share a given region of memory.
Shared Millicode Library. An intrinsic library containing privileged or TNS-derived millicode
routines used by many native-compiled programs and by emulated TNS programs.
This library includes efficient string-move operations, TNS floating-point emulation, and
various privileged-only operations. These routines are mode independent. They
comply with native calling conventions but can be directly invoked from any mode
without changing execution modes.
site update tape (SUT). One or more tapes that contain each target system’s site-specific
subvolume and various products. Each product contains a softdoc and a complete set
of files. A SUT is delivered with every new HP NonStop™ system and can be ordered
whenever a new release version update (RVU) of the system software is available. A
full SUT contains the current RVU of the HP NonStop operating system and all product
software that has been ordered with it. A partial SUT contains a subset of products for
the current RVU.
static translation. A TNS translation step explicitly invoked from the command line before a
TNS object file is executed. The Accelerator and the TNS Object Code Accelerator
(OCA) are static translators.
subvolume. A group of related files stored on a disk. All the files have the same volume
and subvolume name, but each file has a unique file identifier.
super ID. On HP NonStop™ systems, a privileged user who can read, write, execute, and
purge all files on the system. The super ID is usually a member of a system-supervisor
group.
The super ID has the set of special permissions called appropriate privileges. In the
Guardian environment, the structured view of the super ID, which is (255, 255), is most
commonly used. In the Open System Services (OSS) environment, the scalar view of
the super ID, which is 65535, is most commonly used.
superuser. See super ID.
SUT. See site update tape (SUT).
symbolic reference. An occurrence in code or data of the value of a symbol. The symbolic
reference is bound (resolved and made usable) by assigning to it the value of a
definition of that symbol. The symbol value is normally the address of a function or
variable named by the symbol. In position-independent code (PIC) loadfiles, symbolic
references occur only in data.