z/OS Build Process

Development process

Version Control

Compiling

Linking

SMP/E (System Modification Program/Extended) (like RPM)

Packaging utility for z/OS.

A package contains ELEMENTS of many different types.

The SRC_MODULE contains compilable code and is assembled/compiled into a MODULE.

Multiple MODULES are linked into a LOAD_MODULE.

SYSMOD is a package that SMP/E uses to install elements onto the system. It consists of:

• • Modification Control Statements (MCS)

    • Commands start with '++'

    • Tell SMP/E:

      • What's to be updated or replaced

      • It's relation to other product software and SYSMOD's

      • other instructions to SMP/E

  • Modification text:

    • Elements to be applied by the SYSMOD

SYSMOD types:

• • FUNCTION: The base set of elements

    • BASE: Self contained set of elements

    • DEPENDENT: Provides additional elements to a BASE function

• PTF (Program Temporary Fix): Prevent or fix problems with an element, or introduce new element s.

• APAR (Authorized Program Analysis Reports): Fix problems with an element.

• USERMOD (USER MODifications): Customize an element.

Modification Identifiers:

• • Function modification identifiers (FMIDs): Identify the function SYSMOD that introduced the element into the system.

  • Replacement modification identifiers (RMIDs): Identify the last SYSMOD (usually a PTF) to replace the element.

  • Update modification identifiers (UMIDs): Identify the SYSMODs that have updated an element since it was last replaced.

Managing SYSMOD elements, load modules and metadata:

• Distribution Libraries: Backup of SYSMOD elements.

• Target Libraries: Executable load modules.

• Consolidated Software Inventory: Metadata about objects in Distribution and Target Libraries and their relationships

  • Distribution Zone

  • Target Zone

  • Global Zone: Contains

    • • Entries needed to identify and describe each target and distribution zone to SMP/E

      • Information about SMP/E processing options

      • Status information for all SYSMODs SMP/E has begun to process

      • Exception data (normally HOLDDATA) for SYSMODs requiring special handling or that are in error

SMP/E Commands:

• • RECEIVE: Add new SYSMODS to library

  • APPLY: Apply a SYSMOD to the system

  • RESTORE: Roll back an applied SYSMOD

  • ACCEPT: Commit SYSMOD to library, RESTORE no longer possible.