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

#### EXHD

Prolog

Control Block Contents
EXHD DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### EXHD Prolog

     Name       : DMSEXHD
     Description: Map extra header record to format
                  external trace records.
     DSECT      : EXHD
     Function   : Map out the extra header that CMS needs to put
                  into the External Trace Buffer (see TRACE_BUFFER
                  DSECT in DMSBMR PLAS) for each record so that CMS
                  can format the trace records. The Layout of this
                  header preceeds the DSECT below.
     Notes      : Module Type - Macro
                  Macro Syntax - DMSEXHD
                  MNOTEs  issued - None
     Operation  : 1.  Expand the DSECT to map the response

#### EXHD Control Block Content

#### EXHD DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      EXHD           Map extra header record to format
    0000    0 Signed       2 EXHDHLEN       Length of this extra header
    0002    2 Bitstring    2 *              Reserved
    0004    4 Signed       4 EXHDADDR       Address of the user's trace data
    0008    8 Character    8 EXHDFMTR       Format routine name to format
                                            data
    0010   16 Character    8 EXHDTOD        Time of day data produced
              00000018       EXHDLEN        *-EXHD

#### EXHD Storage Layout

    *** EXHD - Map extra header record to format
    *
    *     +-------------+-------------+---------------------------+
    *   0 |  EXHDHLEN   |/////////////|         EXHDADDR          |
    *     +-------------+-------------+---------------------------+
    *   8 |                       EXHDFMTR                        |
    *     +-------------------------------------------------------+
    *  10 |                       EXHDTOD                         |
    *     +-------------------------------------------------------+
    *  18
    *
    *** EXHD - Map extra header record to format

#### EXHD Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    EXHDADDR       0004
    EXHDFMTR       0008
    EXHDHLEN       0000
    EXHDLEN        0010 00000018
    EXHDTOD        0010

This information is based on z/VM V6R1.0.
Last updated on 23 Oct 2009 at 11:02:52 EDT.
Copyright IBM Corporation, 1990, 2008