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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/114692] New: [14 Regression] Symbol versioning
 problem in GCC 14 libstdc++.so.6
Date: Thu, 11 Apr 2024 11:20:21 +0000
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X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 14.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114692

            Bug ID: 114692
           Summary: [14 Regression] Symbol versioning problem in GCC 14
                    libstdc++.so.6
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
  Target Milestone: ---

I was just updating libstdc++ baseline_symbols.txt files from latest Fedora,
but seems we have a major issue.
While the CXXABI_1.3.15 symver is really new in GCC 14 and got one symbol,
I think GCC 13.1 shipped with GLIBCXX_3.4.31 as latest symver, but then we
applied
PR108969 fix for 13.2 and added one symbol to GLIBCXX_3.4.32 -
_ZSt21ios_base_library_initv.
But new symbols for GCC 14 should have been therefore added to GLIBCXX_3.4.=
33,
but they were actually added to GLIBCXX_3.4.32 which already shipped in GCC
13.2:
_ZNKSt12__basic_fileIcE13native_handleEv@@GLIBCXX_3.4.32
_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE11_S_allocateERS3_m@@G=
LIBCXX_3.4.32
_ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEE11_S_allocateERS3_m@@G=
LIBCXX_3.4.32
(or s/m@/j@/ or s/m@/y@/).=