Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.

SYMPT

Prolog  

Control Block Contents  
   SYMPT DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


SYMPT Prolog

 NAME       : HCPSYMPT
 DESCRIPTION: Symbol LOCATE Pointer Block
 DSECT      : SYMPT
 FUNCTION   : The Symbol LOCATE Pointer Blocks are chained from the
              SYMLH.  Each SYMPT controls a set of SYMTB entries.
 LOCATED BY : SYMLHPT1 in SYMLH
              SYMPTFWD in SYMPT
 CREATED BY : HCPCFD
 DELETED BY : None
 REFERENCES : None
 SERIALIZED : Additions or changes to the SYMPT entries and to the
              SYMTB entries requires exclusive control of the
              SYMLHLCK lock.
              Searches of the SYMPT entries and of the SYMTB entries
              requires shared control of the SYMLHLCK lock.

 

SYMPT Control Block Content


SYMPT DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      SYMPT          Symbol LOCATE Pointer Block
0000    0 Address      4 SYMPTFWD       Real address of next SYMPT
0004    4 Address      4 SYMPTST        Virtual address of start of map
0008    8 Address      4 SYMPTND        Virtual address of end of map
000C   12 Signed       4 SYMPTLN        Length of each SYMTB in the map
0010   16 Signed       4 SYMPTEND (0)   The end

 

SYMPT Storage Layout

          
*** SYMPT - Symbol LOCATE Pointer Block
*
*     +---------------------------+---------------------------+
*   0 |         SYMPTFWD          |         SYMPTST           |
*     +---------------------------+---------------------------+
*   8 |         SYMPTND           |         SYMPTLN           |
*     +---------------------------+---------------------------+
*
*** SYMPT - Symbol LOCATE Pointer Block

 

SYMPT Cross Reference

Symbol         Dspl Value
-------------- ---- -----
SYMPTEND       0010
SYMPTFWD       0000
SYMPTLN        000C
SYMPTND        0008
SYMPTST        0004

This information is based on z/VM V4R2.0. Last updated on 17 Oct 2001 at 16:51:46 EDT.
Copyright IBM Corporation, 1990, 2001