SYMPT | Back to Index page

| Prolog Control Block Contents SYMPT DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

SYMPT Prolog | Top of page

     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.
     RELOCATION CONSIDERATIONS : None

SYMPT Control Block Content | Top of page

     SYMPT DSECT
    Top of page

    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 | Top of page

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

SYMPT Cross Reference | Top of page

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

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:31:01 EDT.
Copyright IBM Corporation, 1990, 2020