From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 7A6D7385AC19; Fri,  1 Jul 2022 15:09:29 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7A6D7385AC19
From: "macro at orcam dot me.uk" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug cli/29315] New: Completion warning: could not convert ... from
 the host encoding (ANSI_X3.4-1968) to UTF-32
Date: Fri, 01 Jul 2022 15:09:28 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gdb
X-Bugzilla-Component: cli
X-Bugzilla-Version: HEAD
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: macro at orcam dot me.uk
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-29315-4717@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gdb-prs@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gdb-prs mailing list <gdb-prs.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/gdb-prs>,
 <mailto:gdb-prs-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/gdb-prs/>
List-Help: <mailto:gdb-prs-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/gdb-prs>,
 <mailto:gdb-prs-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Fri, 01 Jul 2022 15:09:29 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D29315

            Bug ID: 29315
           Summary: Completion warning: could not convert ... from the
                    host encoding (ANSI_X3.4-1968) to UTF-32
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: cli
          Assignee: unassigned at sourceware dot org
          Reporter: macro at orcam dot me.uk
  Target Milestone: ---

Following the breakage from PR cli/29314, when debugging `cc1' from GCC
12, which has a huge number of template class functions, e.g.:

hash_table<action_record_hasher, false, xcallocator>::expand()
hash_table<action_record_hasher, false,
xcallocator>::find_slot_with_hash(action_record* const&, unsigned int,
insert_option)
hash_table<action_record_hasher, false, xcallocator>::~hash_table()
hash_table<addr_hasher, false, xcallocator>::expand()
[1100+ entries follow]

in some cases if you try to continue completing an incorrect completion
produced, then a warning is issued as follows:

(gdb) break hash_tab le<<Tab>
(gdb) break hash_tab le<warning: could not convert 'hash_tab le<' from the =
host
encoding (ANSI_X3.4-1968) to UTF-32.
This normally should not happen, please file a bug report.

and GDB hangs for a couple of minutes before silently returning to the=20
prompt (i.e. it's not shown unless e.g. ^U is entered at this point).

This actually asks for a bug report, so here you go.

I can reproduce it with:

$ gdb /path/to/cc1

(having compiled `cc1' with debug info of course) on a native
RISC-V/Linux system, specifically the SiFive Freedom U SDK Linux
distribution provided with the HiFive Unmatched development system:

$ cat /etc/os-release
ID=3Dnodistro
NAME=3D"FreedomUSDK"
VERSION=3D"2021.03.01 (2021March)"
VERSION_ID=3D2021.03.01
PRETTY_NAME=3D"FreedomUSDK 2021.03.01 (2021March)"
$=20

I have no idea why a warning pops up from gdb/ada-lang.c for an
executable that contains no Ada code:

(gdb) show language
The current source language is "auto; currently c++".
(gdb)=20

I may be able to provide further details later.

--=20
You are receiving this mail because:
You are on the CC list for the bug.=