Preparation

  1. The z/OS® TSO/E REXX Stream I/O function package is shipped together with the IBM Library for REXX on IBM Z and installed with SMP/E. The executable load libraries are in the data set prefix.SEAGFUP.
  2. To activate the function package it is necessary to assemble and link-edit the TSO/E parameter modules IRXPARMS and IRXTSPRM.
    Customize the JCL job EAGSIOAS, which is in data set prefix.SEAGJENU. It contains predefined steps to automate the assembly of the TSO/E parameter modules. You must customize the PROC section as follows:
    • Specify the load library data set that has already been allocated. Replace the uid.REXX with the appropriate naming.
    • Ensure that SYS1.MACLIB and SYS1.CSSLIB are referenced in your SYSLIB concatenation. SYS1.CSSLIB must contain the modules IEANTRT, IEANTCR, and IEANTDL.

      SYS1.CSSLIB contains the stubs for z/OS Name/Token Services that the stream I/O functions require to share data with TSO/E REXX.

  3. The parameter modules IRXPARMS and IRXTSPRM provided with this function package are modified exclusively for the needs of the REXX Stream I/O function package. Do not modify them. They are used by the EAGSIOAS job.