z/OS Version 2 Release 3 Language Environment Programming Reference IBM SA38-0683-30 Note Before using this information and the product it supports, read the information in “Notices” on page 433. This edition applies to Version 2 Release 3 of z/OS (5650-ZOS) and to all subsequent releases and modifications until otherwise indicated in new editions. Last updated: 2019-04-24 © Copyright International Business Machines Corporation 1991, 2018. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents List of Figures....................................................................................................... ix List of Tables........................................................................................................ xi About this document...........................................................................................xiii Using your documentation........................................................................................................................ xiii How to read syntax diagrams....................................................................................................................xiv z/OS information........................................................................................................................................xvi How to send your comments to IBM.................................................................... xvii If you have a technical problem............................................................................................................... xvii Summary of changes......................................................................................... xviii Summary of changes for Language Environment for z/OS Version 2 Release 3 (V2R3)....................... xviii Summary of changes for Language Environment for z/OS Version 2 Release 2 (V2R2) as updated December, 2015................................................................................................................................. xviii Summary of changes for Language Environment for z/OS Version 2 Release 2 (V2R2)......................... xix z/OS Version 2 Release 1 summary of changes....................................................................................... xix What Language Environment supports................................................................. xx Part 1. Language Environment runtime options.......................................................1 Chapter 1. Summary of Language Environment runtime options ..............................................................3 Quick reference table for AMODE 31 runtime options.......................................................................... 3 Quick reference table for AMODE 64 runtime options.......................................................................... 6 How to specify runtime options............................................................................................................. 7 Propagating runtime options with spawn and exec ..............................................................................7 Chapter 2. Using the Language Environment runtime options...................................................................9 ABPERC...................................................................................................................................................9 ABTERMENC.........................................................................................................................................10 AIXBLD (COBOL only)...........................................................................................................................11 ALL31....................................................................................................................................................11 ANYHEAP..............................................................................................................................................13 ARGPARSE | NOARGPARSE .................................................................................................................14 AUTOTASK | NOAUTOTASK (Fortran only)........................................................................................... 15 BELOWHEAP.........................................................................................................................................15 CBLOPTS (COBOL only)........................................................................................................................ 16 CBLPSHPOP (COBOL only)...................................................................................................................17 CBLQDA (COBOL only)..........................................................................................................................17 CEEDUMP..............................................................................................................................................18 CHECK (COBOL only)............................................................................................................................20 COUNTRY..............................................................................................................................................20 DEBUG (COBOL only)........................................................................................................................... 22 DEPTHCONDLMT..................................................................................................................................22 DYNDUMP............................................................................................................................................. 23 ENV ...................................................................................................................................................... 26 ENVAR...................................................................................................................................................27 iii ERRCOUNT........................................................................................................................................... 28 ERRUNIT (Fortran only)........................................................................................................................29 EXECOPS | NOEXECOPS ......................................................................................................................29 FILEHIST (Fortran only)....................................................................................................................... 30 FILETAG (C/C++ only)...........................................................................................................................30 FLOW (COBOL only)..............................................................................................................................32 HEAP..................................................................................................................................................... 32 HEAP64 (AMODE 64 only)....................................................................................................................34 HEAPCHK..............................................................................................................................................36 HEAPPOOLS (C/C++ and Enterprise PL/I only)................................................................................... 38 HEAPPOOLS64 (C/C++ and AMODE 64 only)......................................................................................40 HEAPZONES..........................................................................................................................................41 INFOMSGFILTER.................................................................................................................................. 43 INQPCOPN (FORTRAN only)................................................................................................................ 43 INTERRUPT...........................................................................................................................................44 IOHEAP64 (AMODE 64 only)................................................................................................................44 LIBHEAP64 (AMODE 64 only)..............................................................................................................46 LIBSTACK..............................................................................................................................................47 MSGFILE............................................................................................................................................... 48 MSGQ.................................................................................................................................................... 51 NATLANG.............................................................................................................................................. 51 OCSTATUS (Fortran only)..................................................................................................................... 52 PAGEFRAMESIZE................................................................................................................................. 53 PAGEFRAMESIZE64............................................................................................................................