Re: [BPF] Maintenance status and breakpoint/register questions

[Qi Su via Gdb <gdb@sourceware.org>]

On 8/3/25 03:39, Sam James wrote:
> Qi Su via Gdb <gdb@sourceware.org> writes:
>
>> Hi Jose and gdb folks,
>>
>> Hope you're doing well. I've been digging into GDB's BPF target and wanted
>> to check a few things before I start cleaning up patches.
>>
>> 1. Maintenance status
>> The last commits touching `gdb/bpf` seem over a year old, and I haven’t
>> seen much recent activity. Is the port still actively maintained? Also, is
>> there any internal code at Oracle—docs, test cases, examples—that could be
>> upstreamed or shared?
> Ports in gdb don't tend to require particularly high levels of
> commits. I'm not saying there isn't stuff to be done, but I don't think
> the activity level is alarming (at least to me).
>
> The only BPF specific file in gdb is gdb/bpf-tdep.c and that's not so
> big by design. Is there something more specific you're concerned about?


I understand low frequency is fine for ports in gdb. bpf-gdb had very 
little discussion. There's only one bug report #28565 in sourceware 
bugzilla in 2021 and it shows bpf-gdb's simulator was not functional 
(step/run/continue crashes). It's the most basic functionality and had 
not been fixed for a long time and that's why I was asking.

> [...]
Qi