From: Michael Olbrich <m.olbrich@pengutronix.de>
To: ptxdist@pengutronix.de
Subject: Re: [ptxdist] Multiple "vendor" kernels based on the same upstream kernel version
Date: Thu, 8 Mar 2018 08:24:29 +0100 [thread overview]
Message-ID: <20180308072429.qaeoyyfjzyty3evm@pengutronix.de> (raw)
In-Reply-To: <CABDcavb9oovRFKjK6p-vTjxosr6ZSXgL99qjNc0=77nHiSK_5w@mail.gmail.com>
Hi,
On Wed, Mar 07, 2018 at 06:18:39PM +0100, Guillermo Rodriguez Garcia wrote:
> I want to keep to different "vendor" kernels in my ptxdist BSP, and both
> are based on the same upstream kernel version, say 4.1.
>
> How can I keep both of these kernels in the configs/<platform>/.. tree?
>
> I tried just given them different names , e.g.:
>
> configs/platform/kernelconfig-4.1-foo
> configs/platform/kernelconfig-4.1-bar
> configs/platform/patches/linux-4.1-foo/...
> configs/platform/patches/linux-4.1-bar/...
>
> And then select either 4.1-foo or 4.1-bar using ptxdist platformconfig.
>
> However this does not work, as ptxdist will then try to download an
> upstream kernel with version "4.1-foo" or "4.1-bar", which obviously fails.
>
> Any hints?
You could set the version in the platformconfig to 4.1 and use symlinks to
switch:
configs/platform/kernelconfig-4.1 -> kernelconfig-4.1-foo
configs/platform/patches/linux-4.1 -> linux-4.1-foo
You could use the kernel template to build both kernels at the same time.
You'll need to tweak the rules a bit:
KERNEL_FOO := linux-$(KERNEL_FOO_VERSION)-foo
KERNEL_FOO_DIR := $(BUILDDIR)/$(KERNEL_FOO)
KERNEL_FOO_URL := .../linux-$(KERNEL_FOO_VERSION).$(KERNEL_FOO_SUFFIX)
KERNEL_FOO_SOURCE := $(SRCDIR)/linux-$(KERNEL_FOO_VERSION).$(KERNEL_FOO_SUFFIX)
You won't be able to use the kernel-url macro, just use a normal URL.
Basically, KERNEL_FOO must contain the '-foo' because the patch dir is
derived from this. And KERNEL_FOO_URL and KERNEL_FOO_SOURCE must point to
the upstream tarball.
Regards,
Michael
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prev parent reply other threads:[~2018-03-08 7:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-07 17:18 Guillermo Rodriguez Garcia
2018-03-08 7:24 ` Michael Olbrich [this message]
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