Re: [PATCH v4 02/12] ELF: Add ELF program property parsing support

From: Catalin Marinas
Date: Tue Jan 14 2020 - 11:34:11 EST


On Wed, Dec 11, 2019 at 03:41:56PM +0000, Mark Brown wrote:
> From: Dave Martin <Dave.Martin@xxxxxxx>
>
> ELF program properties will be needed for detecting whether to
> enable optional architecture or ABI features for a new ELF process.
>
> For now, there are no generic properties that we care about, so do
> nothing unless CONFIG_ARCH_USE_GNU_PROPERTY=y.
>
> Otherwise, the presence of properties using the PT_PROGRAM_PROPERTY
> phdrs entry (if any), and notify each property to the arch code.
>
> For now, the added code is not used.
>
> Signed-off-by: Dave Martin <Dave.Martin@xxxxxxx>
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>

As with the previous patch, this should also go to linux-fsdevel.

The logic looks fine to me but I'm not sure the choice of returning -EIO
is suitable in most cases. I think apart from kernel_read() returning an
error, there rest look like malformed ELF notes, so rather -ENOEXEC.

--
Catalin