Re: [PATCH] profiling: fix sampling step on 64-bit big-endian systems

[Avi Weiss]

FYI Bradley I left it running overnight and got these to compile successfully:
s390x
sparc64
powerpc64-be
x86_64
arm64
i386
powerpc64-le
mips
riscv64
loongarch
armhf
armel
alpha
arc
microblaze
xtensa
csky
um
nios2

These I couldn't get the toolchain settings right so they never started:
parisc64
m68k
sh
hexagon

On Wed, 21 Oct 2026 at 03:46, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Tue, 20 Oct 2026 17:50:24 +0100 Bradley Morgan <brads@xxxxxxxxxxxxxx> wrote:
>
> > On 20 October 2026 17:47:22 BST, Avi Weiss <thnkslprpt@xxxxxxxxx> wrote:
> > >I'm happy to try it anyway - just so I know how for future patches.
> > >I'll see how many I can run through before my laptop gives up ;-)
> >
> > sometimes the crux is for these kinds of patches something in some cryptic
> > arch gets messed up in vmlinux stage, odd right?
> >
> > This *makes sense* for me, off the top of my head and thinking hard id say
> > this *shouldn't* do anything bad to a cryptic architecture, but I've been
> > shocked in the past.
>
> OK, read_profile() makes me question my career choices.
>
> It starts out with totally inappropriate type choices then bandaids
> over that by typecasting just about every damn thing in there.  None of
> it is commented, natch.
>
> I'll grab Avi's fix for this merge window.  I persuaded the
> coin-operated coding machine to generate a couple of patches to fix a
> pre-existing thing and to clean up that code.  I'll send them
> separately so Sashiko takes a look.  Please review.