IBM Z Hardware and Operating Systems Ideas Portal


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LE

Showing 104 of 3362

Allow z/OS C/C++ library to write zero-length data set records using record mode processing.

The z/OS C/C++ library will currently not allow the creation of zero-length records using record-mode processing using fwrite(). This applies to RECFM=V*, and RECFM=U. It is possible using text mode, but this does not allow for binary processing. ...
almost 6 years ago in z/OS / LE 3 Not under consideration

Allow HEAPZONES LE RTO to be set in CEEBXITA Assembler Exits

As documented in the z/OS Language Environment Programming Guide: You cannot set HEAPZONES at the system level, region level, or in the CEEBXITA assembler user exit interface. This RFE documents the need to allow HEAPZONES to be specified in CEEBX...
almost 6 years ago in z/OS / LE 1 Not under consideration

z/OS LE/C should support to freopen() for SYSIN dataset open

System:z/OS v.2.1Description:While the SYSIN DDwhen defined with DATA or * are JES subsystem managed, in XL C, SYSIN DDwill be treated as the C stream stdin, regardless of how it is sourced(subsystem or data set), and is treated special. The freop...
almost 6 years ago in z/OS / LE 2 Not under consideration

Unexpected CEELAA_STACKFLOOR64 address when storage initialization is used

During testing of IBM Fault Analyzer for z/OS, we encountered a problem with the CEELAA_STACKFLOOR64 field. Fault Analyzer uses this value to determine the valid address range of the stack storage when checking a possible DSA address. Basically, i...
about 6 years ago in z/OS / LE 1 Not under consideration

Code examples needed for the "fldata() ? Retrieve file information" topic in z/OS XL C/C++ Runtime Library Reference

A comment came in while user was viewing a XL C/C++ z/OS KC page saying "links retrieved in top Google search, website is clear, fast and responsive, but not enough code samples". Specifically, they were looking at https://www.ibm.com/support/know...
about 6 years ago in z/OS / LE 2 Not under consideration

Remove macro expansion branch instruction opcode dependencies from LE runtime routines

At least one LE runtime function (CEEVTOVF) uses branch instruction opcodes within macro expansions (at least EDCPRLG) to determine the language of the caller and bases actions on that language. Assembler macros IEABRC and IEABRCX interfere with t...
about 6 years ago in z/OS / LE 1 Not under consideration

Monitor the z/OS Language Environment Heap Usage

The usage/allocation of the LE Heap storage would affect the performance of the IBM CMOD product that is using it. In the reported case, when the LE Heap is not properly tuned, high CPU consumed by the CMOD address space is observed. Although the ...
about 6 years ago in z/OS / LE 0 Future consideration

CEE3USR equivalent function at the Process Level

LE provides the CEE3USR function to anchor storage at the Enclave level. We would like to use a CEE3USR equivalent function at the Process level. We currently use the LE routine CEEPCB_ZGETST to get Process-Level storage. We'd like to anchor it of...
about 6 years ago in z/OS / LE 0 Future consideration

Add IPv6 support to XTI API running in a language environment

We need to have IPv6 support for XTI C API running under a language environment. currently t_* calls support only IPv4.
over 6 years ago in z/OS / LE 1 Future consideration

Perform recovery for IO ABEND during read datasets through XL C/C++ read functions

If there are any members missed in a concatenation in JCL which start a C program may read data from the concatenated datasets, DFSMS would raise an S737-24 ABEND during read. LE should add recovery mechanism during reading and return errors to ap...
over 6 years ago in z/OS / LE 1 Not under consideration

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