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  1. MariaDB Server
  2. MDEV-36542

Remove compile options for faking initialization under clang

Details

    • Sprint 7 (07.04.2025), Sprint 8 (21.04.2025), Sprint 9 (05.05.2025)

    Description

      There are a number of compiler defines that fake initialization LINT_INIT and UNINIT_VAR for example.

      With modern static analysers and the current usage, these are very shallow path to determine the initialisation did happen.

      Its better to catch these uninitialised values.

      Faking over the initialisation of variables in debug mode is likely to have a release build without the correct initialization.

      The UNINIT_VAR(x) x= x construct was causing UBSAN issues like:

      sql/sql_view.cc:1299:8: runtime error: load of value 16, which is not a valid value for type 'bool'

      Attachments

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. MDBF-741 Remove the gcc UBSAN builder to use the clang based UBSAN

          • Major - Major loss of function.
          • In Testing
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-35589 UBSAN: runtime error: load of value 21/58, which is not a valid value for type 'bool' in extract_date_time

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. MDEV-35590 UBSAN: runtime error: load of value 43, which is not a valid value for type 'bool' on I_S SELECT

          • Major - Major loss of function.
          • Open

          Activity

            Transition Time In Source Status Execution Times
            Daniel Black made transition -
            Open In Progress
            		3m 41s 1
            Daniel Black made transition -
            In Review Stalled
            		4d 3h 21m 1
            Daniel Black made transition -
            Stalled In Progress
            		13d 21h 4m 1
            Daniel Black made transition -
            In Progress In Review
            		23h 44m 2

            People

              monty Michael Widenius
              danblack Daniel Black
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              Dates

                Created:
                Updated:

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