A fix is available
APAR status
Closed as program error.
Error description
The compiler must assume that the sender and receiver could overlap when moving data from another section into the linkage section, as the move could overwrite part of the sender. To avoid generating incorrect code, the compiler's internal state indicates that the sender may be written to when moving data to a linkage section receiver. The INITCHECK option looks at this internal state to determine which data items need to be checked (senders whose initialization state is uncertain) for each statement. As the internal state was indicating that the MOVE statement wrote to the sender, the sender was considered initialized, and so the compiler did not issue the message flagging the sender as uninitialized.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users of Enterprise COBOL V6.3 compiling * * programs with INITCHECK that move data from * * the LOCAL-STORAGE or WORKING-STORAGE * * sections to the LINKAGE SECTION with the * * sender being uninitialized. * **************************************************************** * PROBLEM DESCRIPTION: The compiler does not issue message * * MSGIGYCB7311-W for the sender. * **************************************************************** * RECOMMENDATION: Apply the provided PTF. * **************************************************************** The compiler must assume that the sender and receiver could overlap when moving data from another section into the linkage section, as the move could overwrite part of the sender. To avoid generating incorrect code, the compiler's internal state indicates that the sender may be written to when moving data to a linkage section receiver. The INITCHECK option looks at this internal state to determine which data items need to be checked (senders whose initialization state is uncertain) for each statement. As the internal state was indicating that the MOVE statement wrote to the sender, the sender was considered initialized, and so the compiler did not issue the message flagging the sender as uninitialized.
Problem conclusion
For MOVEs to the linkage section, the compiler now updates its internal state after checking for uninitialized senders rather than before, causing the compiler to now issue message MSGIGYCB7311-W for uninitialized senders whose data is MOVEd to a linkage section receiver.
Temporary fix
Comments
APAR Information
APAR number
PH23530
Reported component name
ENT COBOL FOR Z
Reported component ID
5655EC600
Reported release
630
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-03-20
Closed date
2020-03-26
Last modified date
2020-04-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
IGY8RWRD IGY8RWTU IGYCASMB IGYCCBE IGYCCCRT IGYCCICS IGYCCSRV IGYCDGEN IGYCDIAG IGYCDMAP IGYCEN$0 IGYCEN$1 IGYCEN$2 IGYCEN$3 IGYCEN$4 IGYCEN$5 IGYCEN$8 IGYCEN$D IGYCEN$R IGYCFGEN IGYCFREE IGYCINIT IGYCJA$0 IGYCJA$1 IGYCJA$2 IGYCJA$3 IGYCJA$4 IGYCJA$5 IGYCJA$8 IGYCJA$D IGYCJA$R IGYCLIBR IGYCLSTR IGYCLVL0 IGYCLVL1 IGYCLVL2 IGYCLVL3 IGYCLVL8 IGYCMALL IGYCOB2E IGYCOSCN IGYCPGEN IGYCRCTL IGYCRDPR IGYCRDSC IGYCREAL IGYCRWT IGYCSCAN IGYCSIMD IGYCUE$0 IGYCUE$1 IGYCUE$2 IGYCUE$3 IGYCUE$4 IGYCUE$5 IGYCUE$8 IGYCUE$D IGYCUE$R IGYCXREF IGYDRV IGYEQCWI IGYMSGE IGYMSGK IGYMSGT IGYQCBE IGYQSPLT IGYZQEN6 IGYZQENU IGYZQJP6 IGYZQJPN
Fix information
Fixed component name
ENT COBOL FOR Z
Fixed component ID
5655EC600
Applicable component levels
R630 PSY UI68641
UP20/04/01 P F003
R631 PSY UI68642
UP20/04/01 P F003
R632 PSY UI68643
UP20/04/01 P F003
R63H PSY UI68644
UP20/04/01 P F003
Fix is available
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Document Information
Modified date:
12 December 2023