[Bug ld/31409] ld arm: global/weak non-hidden symbols referenced by R_ARM_FUNCDESC are unnecessarily exported

[i at maskray dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=31409

--- Comment #1 from Fangrui Song <i at maskray dot me> ---
bfd/elf32-arm.c:16521

  if (eh->fdpic_cnts.funcdesc_cnt > 0)
    {
      if (htab->root.dynamic_sections_created && h->dynindx == -1
          && !h->forced_local)
        if (! bfd_elf_link_record_dynamic_symbol (info, h))
          return false;

is too conservative. bfd_elf_link_record_dynamic_symbol records some symbols
that do not need to be exported.

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