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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
SYMLH
Cross Reference (Contains links to field and bit definitions)
SYMLH Prolog
NAME : HCPSYMLH
DESCRIPTION: Symbol LOCATE Header Block
STATUS : VM/ESA Version 2, Release 1.0
DSECT : SYMLH
FUNCTION : The Symbol LOCATE Header Block locates and controls the
SYMPT blocks and their SYMTB entries, which are used
by the LOCATE command, and other locate facilities in
CP, to locate and identify CP external labels.
LOCATED BY : SYSLOCAT in SYSCM.
CREATED BY : HCPCFDIN during system initialization.
DELETED BY : None
REFERENCES : None
SERIALIZED : Additions or changes to the SYMPT entries and to the
SYMTB entries require exclusive control of the
SYMLHLCK lock.
Searches of the SYMPT entries and of the SYMTB entries
require shared control of the SYMLHLCK lock.
SYMLH Control Block Content
SYMLH DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SYMLH Symbol LOCATE Header Block 0000 0 Dbl-Word 8 SYMLHLCK (3) Lock word. 0018 24 Address 4 SYMLHPT1 Address of first SYMPT 001C 28 Character 1 SYMLHEND (0) The end
SYMLH Storage Layout
*** SYMLH - Symbol LOCATE Header Block * * +-------------------------------------------------------+ * 0 | | * = SYMLHLCK = * | | * +---------------------------+---------------------------+ * 18 | SYMLHPT1 | | * +---------------------------+ | * 20 | | * = SYMLHEND = * | | * +-------------------------------------------------------+ * *** SYMLH - Symbol LOCATE Header Block
SYMLH Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----SYMLHEND 001C
SYMLHLCK 0000
SYMLHPT1 0018
Last updated on 3 Aug 1999 at 12:37:18 EDT.
Copyright IBM Corporation, 1990, 1999