Dose clang support armv4

[Mori Hiroki]

Hi

Thanks for reply.

I'm sorry last log is missing geom_flashmap dts entry.

I use to cfi rootfs.


Now rootfs mount and execute init.

https://gist.github.com/yamori813/ae047a28a825aac255e436fd8ccaf785


init is broken at armv4. 

I checked init is not use arm4t instrauction(bx).

I seem crt problem on armv4.

BTW I post review geom_flashmap scan capability.
This is same as geom_map capability.

https://reviews.freebsd.org/D13648


This is ad hoc method. But It's useful for flash file system. 

Thanks

Hiroki Mori

----- Original Message -----
> From: Ian Lepore <ian at freebsd.org>
> To: Warner Losh <imp at bsdimp.com>; Mori Hiroki <yamori813 at yahoo.co.jp>
> Cc: "freebsd-arm at freebsd.org" <freebsd-arm at freebsd.org>
> Date: 2018/3/13, Tue 02:41
> Subject: Re: Dose clang support armv4
> 
> On Mon, 2018-03-12 at 10:43 -0600, Warner Losh wrote:
>>  Hi Mori-san,
>> 
>>  I've not tried my armv4 boards with clang 6 yet.
>> 
>>  However, you are hanging in mountroot. What's normally printed there?
>>  Ian
>>  just did some things to fix it for USB ad ZFS. Maybe that broke this
>>  use
>>  case accidentally.
>> 
>>  Warner
>> 
> 
> Unfortunately, my only armv4/5 system that's anywhere close to bootable
>  right now is a Dreamplug, and it also hangs at mountroot, but for a
> different reason: somehow its ethernet driver gets a continuous "RX
> error" interrupt storm (and my rootfs is on nfs).  I haven't had time
> to try putting together a rootfs on sdcard or sata to see if it boots
> all the way.
> 
> -- Ian
>