[PATCH v2] MIPS: Don't move __gnu_lto_slim to .scommon

[YunQiang Su]

YunQiang Su <wzssyqa@gmail.com> 于2023年7月5日周三 09:42写道：
>
> YunQiang Su <yunqiang.su@cipunited.com> 于2023年7月3日周一 18:51写道：
> >
> > The LTO plugin doesn't expect __gnu_lto_slim is marked as
> > COMMOM or moved .scommon section.
> >
>
> @Maciej W. Rozycki This is a tiny patch, and I think that it should be
> in 2.41 release.
> Any idea?
>

ping

> > Let's skip __gnu_lto_slim when detect symbols to be moved to
> > .scommon.
> >
> > This patch can fix testcase:
> >         PR ld/15323 (3)
> >         PR ld/15323 (4)
> > for MIPS.
> > ---
> >  bfd/elfxx-mips.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
> > index 71f2dc9d779..63742de009c 100644
> > --- a/bfd/elfxx-mips.c
> > +++ b/bfd/elfxx-mips.c
> > @@ -7861,6 +7861,10 @@ _bfd_mips_elf_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
> >    switch (sym->st_shndx)
> >      {
> >      case SHN_COMMON:
> > +      /* __gnu_lto_slim shouldn't mark as COMMON and move to .scommon:
> > +       lto plugin doesn't expect so.  */
> > +      if (strcmp (*namep, "__gnu_lto_slim") == 0)
> > +       break;
> >        /* Common symbols less than the GP size are automatically
> >          treated as SHN_MIPS_SCOMMON symbols.  */
> >        if (sym->st_size > elf_gp_size (abfd)
> > --
> > 2.30.2
> >
>
>
> --
> YunQiang Su



-- 
YunQiang Su