[PATCH v2 1/1] objdump, as: Add callx support for BPF CPU v1

[Jose E. Marchesi]

> On Wed, Feb 14, 2024 at 5:58 AM Jose E. Marchesi
> <jose.marchesi@oracle.com> wrote:
>>
>>
>> > First, as I said yesterday in my direct message to you, thank you for
>> > making binutils such a pleasant place to contribute to FOSS. You have
>> > no idea what that means to contributors like me!
>> >
>> > Second, thank you for this helpful critique. I really appreciated
>> > reading your feedback and will reply inline below (including with an
>> > offer for a patch unrelated to callx that may clean up some of the
>> > non-constant uses throughout the bpf-specific code).
>> >
>> > Third, there is good news: The heavy lifting of this patch is largely
>> > "overcome by events" -- clang/llvm developers are changing their
>> > encoding of the callx instruction to more closely match what gcc does.
>> > In fact, v3 of this patch will look much more like v1 than v2.
>>
>> Hi Will.
>>
>> It seems to me that all we need binutils-wise is to enable the callx
>> instruction with BPF >= v1.  No other changes are necessary as far as I
>> can see, other than adjusting the testsuite accordingly.
>
> It should be making its way across the Internet to you now!

Thanks :)

> The only thing ... it will probably cause a build error until a
> corresponding patch in the simulator lands that takes into
> consideration the new enum value.
>
> I am happy to handle that however you like!

No problem.  I will tackle the simulator patch in the GDB list and apply
both at almost the same time so the buildbots do not get (too) upset.

> Sorry for the delay!
> Will
>
>
>>
>> Thanks!