Re: [PATCH] powerpc/ftrace: fix syscall tracing on PPC64_ELF_ABI_V1

[Michal Suchánek]

Hello,

On Wed, Dec 07, 2022 at 10:18:13AM -0500, Mathieu Desnoyers wrote:
> On 2022-12-06 21:09, Michael Ellerman wrote:
> > Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> writes:
> > > On 2022-12-05 17:50, Michael Ellerman wrote:

> > 
> > Relatedly we have a patch in next to optionally use ABIv2 for 64-bit big
> > endian builds.
> 
> Interesting. Does it require a matching user-space ? (built with PPC64 ABIv2

No, the kernel and userspace ABI is separate.

> ?) Does it handle legacy PPC32 executables ?

Theoretically it should. No idea if anybody has tested it.

Thanks

Michal