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Status Future consideration
Workspace z/TPF Product Family
Categories z/TPF
Created by Guest
Created on Jun 7, 2023

RELATED IDEAS

(TPFUG/Visa) Utility required to identify code loaded to TPF that was built with a given compiler version or earlier

As part of compiler migration work we have to identify code loaded to TPF that was built with a version of the compiler that is no longer guaranteed to be compatible with a new compiler online execution environment. E.g. the GCC 7 execution environment will support code compiled with GCC 7 or GCC 4.6 but no guarantees are made for code built GCC 4.1 (or earlier, had there been an earlier compiler version supported on zTPF). If customers do not rebuild and load their entire code base as part of their compiler migration strategies, it is entirely possible that they have GCC 4.1 code still loaded. This code needs to be identified so it can be rebuilt and reloaded with the current compiler version before the new compiler execution environment is installed.


Currently, there is no easy way to identify code loaded to TPF that was built with a specific compiler version, or earlier. We have to rely on scans of listings for specific strings, or running readelf commands on SOs. Neither method accounts for the possibility that customer listing/SO locations on linux include code that is no longer actually loaded to TPF.

Ideally the new tooling would run on TPF to gather its information, so that we only gather information about code actually loaded to TPF.

Idea priority Medium

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