Re: armel/marvell kernel size
Dear Rogério,
Good to hear from you again!
On Thu, Mar 22, 2018 at 12:12 PM, Rogério Brito <rbrito@ime.usp.br> wrote:
> Hi, all (and sorry for jumping in a bit late).
>
> On 2018-02-17 10:48, Salvatore Bonaccorso wrote:
>> On Tue, Jan 23, 2018 at 06:30:23PM +0000, Ben Hutchings wrote:
>>> There's an upstream change in cfg80211 that enables direct-loading of
>>> wireless rules, which requires public key crypto in the kernel. There
>>> doesn't appear to be any option to disable that mode, even though we
>>> don't need it because crda still works. Maybe you could disable
>>> wireless networking completely?
>>>
>>> Some options that could possibly be changed from y to m:
>>>
>>> - I2C, I2C_CHARDEV, I2C_MV64XXX. initramfs-tools should include I2C
>>> drivers to the initramfs if needed, but I'm not certain.
>>>
>>> - MTD, MTD_CMDLINE_PARTS, etc. But I'm pretty sure this will break
>>> some systems unless initramfs-tools is updated to include and load the
>>> cmdlinepart module.
>>>
>>> - RTC_DRV_MV (and disable RTC_HCTOSYS). There's a udev rule that
>>> should load the system clock from the first RTC if its driver is a
>>> module.
>>>
>>> - SPI_ORION. initramfs-tools should include this in the initramfs if
>>> needed, but I'm not certain.
>>>
>>> Some options that could possibly be disabled:
>>>
>>> - AUDIT. This is quite a niche feature.
>>>
>>> Also try comparing the complete configs over time and looking for
>>> symbols newly set to y.
>>
>> Did you had a chance to look at Ben's suggestions or ideas?
>
> If nobody is working on getting a new kernel working on armel, I would
> like to (at least, unsuccessfully) try to get it to compile.
>
> At worst, I believe, I can gain some knowledge and compare what I get from
> this armel kernel with a Kurobox HD (powerpc-based; see some notes at [0])...
>
> [0]: http://cynic.cc/blog/posts/simple-annotations-on-compiling-a-linux-kernel-for-an-embedded-platform/
>
> For this task, I have some questions:
I have a wiki entry to help you:
- https://wiki.debian.org/HowToCrossBuildAnOfficialDebianKernelPackage
However, Kurobox HD is not armel, so you need to use Kurobox Pro, if
you still have it.
Cheers,
--
Roger Shimizu, GMT +9 Tokyo
PGP/GPG: 4096R/6C6ACD6417B3ACB1
Reply to: