VERBEXIT LEDATA subcommand — format Language Environment data

There is one version of the LEDATA subcommand for AMODE 31/24 format, and another for AMODE 64 format. For the latest version of each IPCS LEDATA subcommand, see the following topics:
Specify the LEDATA verb name and optional parameters on the VERBEXIT subcommand to format diagnostic data for the Language Environment component of z/OS. LEDATA displays the following:
  • A summary of the Language Environment at the time of the dump
  • Runtime options
  • Storage management control blocks
  • Condition management control blocks
  • Message handler control blocks
  • C Runtime Library control blocks
  • Syntax 
      VERBEXIT LEDATA [ 'parameter [,parameter]...' ]

The parameters are:

     Report type parameters:

                [SUMMARY]
                [HEAP | STACK | SM]
                [HPT(value)]
                [CM]
                [MH]
                [CEEDUMP]
                [COMP(value)]
                [PTBL(value)]
                [ALL]

     Data selection parameters:

                [DETAIL | EXCEPTION]

     Control block selection parameters:

                [CAA(caa-address)]
                [DSA(dsa-address)]
                [TCB(tcb-address)]
                [ASID(address-space-ID)]
                [NTHREADS(value)]
  • Report Type Parameters
    Use these parameters to select the type of report. You can specify as many reports as you want. If you omit the parameters, the default is SUMMARY.
    SUMmary
    Specifies a summary of the Language Environment at the time of the dump. The following information is included:
    • TCB address
    • Address space identifier
    • Language Environment release
    • Active members
    • Formatted CAA, PCB, RCB, EDB, and PMCB
    • Runtime options in effect.
    HEAP | STACK | SM
    HEAP
    Specifies a report on Storage Management control blocks pertaining to HEAP storage.
    STACK
    Specifies a report on Storage Management control blocks pertaining to STACK storage.
    SM
    Specifies a report on Storage Management control blocks. This is the same as specifying both HEAP and STACK.
    HPT(value)
    Specifies the heappools trace (if available) be formatted. If the value is 0 or *, the trace for every heappools poolid is formatted. If the value is a single number (1-12), the trace for the specific heappools poolid is formatted. If the HPT keyword is specified with no value, the HPT value defaults to 0.
    CM
    Specifies a report on Condition Management control blocks.
    MH
    Specifies a report on Message Handler control blocks.
    CEEdump
    Specifies a CEEDUMP-like report. Currently this includes the traceback, the Language Environment trace, and thread synchronization control blocks at process, enclave, and thread levels.
    COMP(value)
    Specifies component control blocks to be formatted, where value is one of the following options:
    C
    Specifies a report on C/C++ Run-Time Control Blocks.
    CIO
    Specifies a report on C/C++ I/O Control Blocks.
    COBOL
    Specifies a report on COBOL-specific Control Blocks.
    PLI
    Specifies a report on PL/I-specific Control Blocks.
    ALL
    Request a report on all the control blocks. If the value specified in COMP is not valid, the COMP value defaults to ALL.
    Note: When LEDATA report type ALL is specified, the COMP value defaults to ALL.
    PTBL(value)
    Specifies the PreInit tables to be formatted, where value is one of the following options:
    CURRENT
    The PreInit table associated with the current or specified TCB is displayed.Note that when report type ALL is specified, the PTBL value defaults to CURRENT.
    address
    The PreInit table at the specified address is displayed.
    *
    All active and dormant PreInit tables within the current address space are displayed. This option is time consuming.
    ACTIVE
    The PreInit tables of all TCBs in the address space are displayed.
    ALL
    Specifies all above reports, in addition to a report on C Runtime Library.
  • Data Selection Parameters
    Use these parameters to limit the scope of the data in the report. If no data selection parameter is selected, the default is DETAIL.
    DETAIL
    Specifies the formatting of all control blocks for the selected components. Only significant fields in each control block are formatted.
    EXCEPTION
    Specifies validating all control blocks for the selected components. The output produced names only the control block and its address for the first control block in a chain that is not valid. Validation consists of control block header verification at the very least.
    Note: For the Summary, CEEDUMP, and C Runtime Library reports, only the DETAIL output is available.
  • Control Block Selection Parameters
    Use these parameters to select the CAA and DSA control blocks used as the starting points for formatting.
    CAA(caa-address)
    Specifies the address of the CAA. If not specified, the CAA address is obtained from the TCB.
    DSA(dsa-address)
    Specifies the address of the DSA. If not specified, the DSA address is assumed to be the general purpose register (GPR) 13 value for the TCB.
    TCB(tcb-address)
    Specifies the address of the TCB. If not specified, the TCB address of the current TCB from the CVT is used.
    ASID(address-space-ID)
    Specifies the hexadecimal address space ID. If not specified, the IPCS default address space ID is used. This parameter is not needed when the dump only has one address space.
    NTHREADS(value)
    Specifies the number of TCBs for which the traceback will be displayed. If NTHREADS is not specified, value will default to (1). If value is specified as asterisk (*), all TCBs will be displayed.
  • Example: For an example of the LEDATA output, see z/OS Language Environment Debugging Guide.
Parent topic: IPCS subcommands