TRSBK | Back to Index page

| Prolog Control Block Contents TRSBK 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.

TRSBK Prolog | Top of page

     NAME       : HCPTRSBK
     DESCRIPTION: TRACE SET BLOCK
     DSECT      : TRSBK
     FUNCTION   : HCPTRSBK CONTAINS ALL DESCRIPTIVE INFORMATION ABOUT A
                  PARTICULAR TRACE SET CURRENTLY DEFINED BY THE TRACE
                  COMMAND.
     LOCATED BY : TRSCYCLE  CHAINED
                  TRXTRSET  FIELD IN HCPTRXBK
     CREATED BY : HCPTRINT, HCPTRIGO
     DELETED BY : HCPTRICL, HCPTRIX
     RELOCATION CONSIDERATIONS : None

TRSBK Control Block Content | Top of page

     TRSBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      TRSBK          TRACE SET BLOCK
    0000    0 Address      4 TRSCYCLE       CYCLIC POINTER (NEXT TRACE SET IN
                                            CHAIN)
    0004    4 Address      4 TRSANCHR       ANCHOR FOR TRACE TRAPS IN TRACE
                                            SET
    0008    8 Character    8 TRSNAME        NAME OF THIS TRACE SET (MUST BE
                                            UNIQUE)
    0010   16 Signed       2 TRSAUTO        TRAP COUNT FOR AUTO-NAME PURPOSES
    0012   18 Signed       2 *              RESERVED FOR FUTURE IBM USE
    0014   20 Address      4 TRSRETRN       ADDR OF NEXT PREVIOUS SET FOR
                                            RETURN
    0018   24 Bitstring    1 TRSFLAGS       SET-SPECIFIC FLAGS
              1... ....      TRSPERES       X'80' TRSPERES TXSUSPEND (PER
                                            event suppression) active X'7F'
                                            reserved for future use
    0019   25 Bitstring    1 *              reserved for future use
              00000004       TRSSIZE        (*-TRSBK+7)/8 NUMBER OF
                                            DOUBLEWORDS

TRSBK Storage Layout | Top of page

    *** TRSBK - TRACE SET BLOCK
    *
    *     +---------------------------+---------------------------+
    *   0 |         TRSCYCLE          |         TRSANCHR          |
    *     +---------------------------+---------------------------+
    *   8 |                       TRSNAME                         |
    *     +-------------+-------------+---------------------------+
    *  10 |  TRSAUTO    |/////////////|         TRSRETRN          |
    *     +------+------+-------------+---------------------------+
    *  18 |:FLAGS|//////|/////////////| 1C
    *     +------+------+-------------+
    *
    *** TRSBK - TRACE SET BLOCK

TRSBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    TRSANCHR       0004
    TRSAUTO        0010
    TRSCYCLE       0000
    TRSFLAGS       0018
    TRSNAME        0008
    TRSPERES       0018 80
    TRSRETRN       0014
    TRSSIZE        0019 00000004

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:31:22 EDT.
Copyright IBM Corporation, 1990, 2020