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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/97787] [10/11 regression] 64bit mips lto: .symtab local
 symbol at index x (>= sh_info of y)
Date: Mon, 25 Jan 2021 10:49:48 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97787

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |lto
                 CC|                            |pinskia at gcc dot gnu.org

--- Comment #23 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #20)
> Indeed already the name, .LTHUNK5.lto_priv.0, hints at that this should b=
e a
> local symbol.  Not sure why we end up with a .reloc then.
>=20
>         ld      $25,%got_disp(.LTHUNK5.lto_priv.0)($28)
> .LEHB26 =3D .
>         .reloc  1f,R_MIPS_JALR,.LTHUNK5.lto_priv.0
> 1:      jalr    $25
>=20
> this seems to be in _ZN4Sass6Parser16parse_parametersEv

So 64bit MIPS n64 ABI with -mxgot does all function calls via loading an
address from the GOT, the .reloc there is to say to the linker to see if it=
 can
relax it to be a direct jump (with link) rather than the indirect jump.

Looking into the cp/method.c code, I see we are creating an alias called
.LTHUNK5 for a function which seems to be fine.  So either we are not outpu=
ting
the correct name or the way local aliases are not being handled correctly w=
hen
splitting up the LTO partitions; -flto-partition=3Dnone is a hint there.=