From: Michael Ellerman <mpe@ellerman•id.au>
To: "Michal Suchánek" <msuchanek@suse•de>
Cc: Paul Menzel <pmenzel@molgen•mpg.de>,
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Subject: Re: [GIT PULL] Please pull powerpc/linux.git powerpc-5.18-1 tag
Date: Thu, 31 Mar 2022 00:21:03 +1100 [thread overview]
Message-ID: <87k0cbfuf4.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <20220330112733.GG163591@kunlun.suse.cz>
Michal Suchánek <msuchanek@suse•de> writes:
> On Mon, Mar 28, 2022 at 08:07:13PM +1100, Michael Ellerman wrote:
>> Linus Torvalds <torvalds@linux-foundation•org> writes:
>> > On Fri, Mar 25, 2022 at 3:25 AM Michael Ellerman <mpe@ellerman•id.au> wrote:
>>
>> > That said:
>> >
>> >> There's a series of commits cleaning up function descriptor handling,
>> >
>> > For some reason I also thought that powerpc had actually moved away
>> > from function descriptors, so I'm clearly not keeping up with the
>> > times.
>>
>> No you're right, we have moved away from them, but not entirely.
>>
>> Functions descriptors are still used for 64-bit big endian, but they're
>> not used for 64-bit little endian, or 32-bit.
>
> There was a patch to use ABIv2 for ppc64 big endian. I suppose that
> would rid usof the gunction descriptors for good.
It would be nice.
The hesitation in the past was that the GNU toolchain developers don't
officially support BE+ELFv2, though it is in use so it does work.
> Maybe it's worth resurrecting?
Yeah maybe we should think about it again. If it builds with clang/lld
that would be a real plus.
cheers
next prev parent reply other threads:[~2022-03-30 13:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-25 10:25 [GIT PULL] Please pull powerpc/linux.git powerpc-5.18-1 tag Michael Ellerman
2022-03-25 16:49 ` Linus Torvalds
2022-03-28 9:07 ` Michael Ellerman
2022-03-30 11:27 ` Michal Suchánek
2022-03-30 13:21 ` Michael Ellerman [this message]
2022-03-30 13:44 ` Arnd Bergmann
2022-03-30 17:07 ` Segher Boessenkool
2022-03-25 17:18 ` pr-tracker-bot
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