On Mon, 28 Nov 2022 at 06:07, François Dumont via Libstdc++ <
libstdc++@gcc.gnu.org> wrote:

> This patch is fixing those tests:
>
> 20_util/to_chars/float128_c++23.cc
> std/format/formatter/requirements.cc
> std/format/functions/format.cc
> std/format/functions/format_to_n.cc
> std/format/functions/size.cc
> std/format/functions/vformat_to.cc
> std/format/string.cc
>
> Note that symbols used in <format> for __ibm128 and __iee128 are untested.
>
> I even wonder if the normal mode ones are because I cannot find the
> symbols used in gnu.ver.
>
>
>      libstdc++: [_GLIBCXX_INLINE_VERSION] Add to_chars/from_chars
> symbols export
>
>      libstdc++-v3/ChangeLog
>
>              * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars):
> Adapt __asm symbol
>              specifications.
>              * config/abi/pre/gnu-versioned-namespace.ver: Add
> to_chars/from_chars symbols
>              export.
>
> Ok to commit ?
>
>

Why are changes needed to the linker script?

Those functions should already match the general wildcard:

    # Names inside the 'extern' block are demangled names.
    extern "C++"
    {
      std::*;
      std::__8::*;
    };