Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
FBLOCK
PrologControl Block Contents
FBLOCK DSECT
Storage Layout
Cross Reference
FBLOCK Prolog
Name : FBLOCK Description: EXEC File Execution Control Block DSECT : FBLOCK Function : FBLOCK contains information used by EXEC2 or REXX/VM to run an exec. A pointer to the FBLOCK is provided in the PLIST when the appropriate interpreter is called to run the exec. FBLOCK is found in FBLOCK macro.
FBLOCK Control Block Content
FBLOCK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure FBLOCK EXEC File Execution Control Block 0000 0 Signed 4 * (0) 0000 0 Character 8 FBLNAME Filename 0008 8 Character 8 FBLTYPE Filetype 0010 16 Character 2 FBLMODE Filemode 00000012 FBLLFI *-FBLNAME Length of fileid 0012 18 Signed 2 FBLEXTL Extension block length (words) 0014 20 Address 4 FBLDLS Descriptor list start 0018 24 Signed 4 FBLDLE Descriptor list length (bytes) 001C 28 Character 8 FBLPREF Explicit initial prefix 0024 36 Character 8 FBLENAME Explicit environment name 002C 44 Address 4 FBLSEXIT System Exit vector address 0030 48 Signed 4 FBLEUSER System Exit User Word 00000034 FBLLENL *-FBLNAME Length of fblock (bytes) 00000007 FBLLEND (FBLLENL+7)/8 Length of fblock (dwords)
FBLOCK Storage Layout
*** FBLOCK - EXEC File Execution Control Block * * +-------------------------------------------------------+ * 0 | FBLNAME | * +-------------------------------------------------------+ * 8 | FBLTYPE | * +-------------+-------------+---------------------------+ * 10 | FBLMODE | FBLEXTL | FBLDLS | * +-------------+-------------+---------------------------+ * 18 | FBLDLE | FBLPREF- | * +---------------------------+---------------------------+ * 20 | -(01C) | FBLENAME- | * +---------------------------+---------------------------+ * 28 | -(024) | FBLSEXIT | * +---------------------------+---------------------------+ * 30 | FBLEUSER | 34 * +---------------------------+ * *** FBLOCK - EXEC File Execution Control Block
FBLOCK Cross Reference
Symbol Dspl Value -------------- ---- ----- FBLDLE 0018 FBLDLS 0014 FBLENAME 0024 FBLEUSER 0030 FBLEXTL 0012 FBLLEND 0030 00000007 FBLLENL 0030 00000034 FBLLFI 0010 00000012 FBLMODE 0010 FBLNAME 0000 FBLPREF 001C FBLSEXIT 002C FBLTYPE 0008
Last updated on 2 Apr 2001 at 15:46:56 EDT.
Copyright IBM Corporation, 1990, 2001