[Bug remote/30618] New: warning: while parsing threads: not well-formed (invalid token) - in non-stop + remote mode

["jonah at kichwacoders dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=30618

            Bug ID: 30618
           Summary: warning: while parsing threads: not well-formed
                    (invalid token) - in non-stop + remote mode
           Product: gdb
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: remote
          Assignee: unassigned at sourceware dot org
          Reporter: jonah at kichwacoders dot com
  Target Milestone: ---

Create an empty main method in a file containing unicode characters and compile
it with gcc, start gdbserver and connect to it with gdb in non-stop mode and
the connection sequence fails (full log below):

(gdb) set non-stop on
(gdb) target remote :3333
Remote debugging using :3333
warning: while parsing threads: not well-formed (invalid token)
The target is not running (try extended-remote?)


With remote debugging on this is the output (run in MI mode because the
characters are escaped better):

&"  [remote] Sending packet: $QNonStop:1#8d\n"
&"  [remote] Packet received: OK\n"
&"  [remote] Sending packet: $qXfer:threads:read::0,1000#92\n"
&"  [remote] Packet received: l<threads>\\n<thread id=\"p10883.10883\"
core=\"8\" name=\"issue-275-\\346\\265\\213\\350\\257\"/>\\n</threads>\\n\n"
&"warning: while parsing threads: not well-formed (invalid token)\n"
&"  [remote] Sending packet: $qTStatus#49\n"
&"  [remote] Packet received:
T0;tnotrun:0;tframes:0;tcreated:0;tfree:500000;tsize:500000;circular:0;disconn:0;starttime:0;stoptime:0;username:;notes::\n"
&"  [remote] packet_ok: Packet qTStatus (trace-status) is supported\n"
&"  [remote] Sending packet: $qTfV#81\n"
&"  [remote] Packet received: 1:0:1:74726163655f74696d657374616d70\n"
&"  [remote] Sending packet: $qTsV#8e\n"
&"  [remote] Packet received: l\n"
=tsv-created,name="trace_timestamp",initial="0"
&"  [remote] Sending packet: $?#3f\n"
&"  [remote] Packet received:
T0506:0000000000000000;07:90daffffff7f0000;10:b032fef7ff7f0000;thread:p10883.10883;core:8;\n"
&"  [remote] Sending packet: $vStopped#55\n"
&"  [remote] Packet received: OK\n"
&"[remote] start_remote_1: exit\n"


Here is the source and versions I am using:

$ cat src/integration-tests/test-programs/issue-275-测试.c 
int main(int argc, char *argv[])
{
    return 0;
}
$ gcc -o src/integration-tests/test-programs/issue-275-测试 -g
src/integration-tests/test-programs/issue-275-测试.c
$ gcc --version
gcc (Ubuntu 11.3.0-1ubuntu1~22.04.1) 11.3.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ gdb --version
GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1
Copyright (C) 2022 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

In case the encoding in bugzilla corrupt it, the 测试 is "test"
(https://translate.google.ca/?sl=auto&tl=en&text=%E6%B5%8B%E8%AF%95&op=translate)
and is encoded in UTF-8 as \xe6\xb5\x8b\xe8\xaf\x95 or \346\265\213\350\257\225

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