From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 1D90F3840C22; Mon, 25 Jan 2021 11:22:39 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1D90F3840C22
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
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 11:22:39 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: lto
X-Bugzilla-Version: 10.2.0
X-Bugzilla-Keywords: lto
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 10.3
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-97787-4-U6ArGiIC5J@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-97787-4@http.gcc.gnu.org/bugzilla/>
References: <bug-97787-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Mon, 25 Jan 2021 11:22:39 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97787

--- Comment #25 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, so it's read as

*.LTHUNK5.lto_priv.0/2880 (*.LTHUNK5) @0xfff1163840
  Type: function definition analyzed alias
  Visibility: in_other_partition used_from_other_partition
prevailing_def_ironly external public visibility_specified visibility:hidden
artificial
  References:
_ZN4Sass10Parameters20adjust_after_pushingENS_10SharedImplINS_9ParameterEEE=
/2879
(alias)
  Referring:
  Read from file: libsass.so.1.0.0.ltrans16.o
  Unit id: 3
  Function flags:
  Called by:
_ZThn64_N4Sass10Parameters20adjust_after_pushingENS_10SharedImplINS_9Parame=
terEEE/349153
(can throw external)
_ZThn64_N4Sass10Parameters20adjust_after_pushingENS_10SharedImplINS_9Parame=
terEEE/2881
(can throw external)
  Calls:

and thus indeed "external" (in_other_partition).  Defined in ltrans1.s as

        .globl  .LTHUNK5.lto_priv.0
        .hidden .LTHUNK5.lto_priv.0
        .LTHUNK5.lto_priv.0 =3D
_ZN4Sass10Parameters20adjust_after_pushingENS_10SharedImplINS_9ParameterEEE

which I think means that possibly the process of bringing a symbol local
needs to mangle the assembler name before using it more thoroughly or the
mips target in particular needs to introduce the extern symbol to the
assembler to not confuse it with a local label.  I think the latter is
more likely - Honza should know if other targets (like AIX ...) are
affected similarly and what we have to do here.

Honza?=