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Hey everyone,
As you may or may not know, I've been assigned the task of trying to bring up a semi-new arch for the rasp pi. I think this is a bit too much for me to handle as I am not a programmer and when things go wrong besides package build failures, I get stuck
pretty easily. So my status is, I've been using a mixture of rpmbuild && mock on an armv7hl machine to compile around 750+ core packages and I've been using rpmrc && macro files which contain the following compiler flags:
... -march=armv6 -mfloat-abi=hard -mfpu=vfp ...
With my initial set of packages, I tried to install them on a armv5 rasp pi using this command:
rpm --force --ignorearch --nodeps --root /root/f17arm6hl/ -i ./repo/*
The first sign that something must have gone wrong was all the "%post" scriplet warnings that were being displayed during the rootdir install. Once rpm finished, I tried to chroot into that directory to see if it would run. The result is the following:
[root@raspi ~]# chroot /root/ f17arm6hl/
Illegal instruction [root@raspi ~]# As you can see, this is where the problem suddenly goes way above my head. I don't know much about how to debug what's really going on here but it seems like I may have compiled a possible library or binary with a v7hl instruction? Not sure how to check
for that though... Could it be that chroot'ing into a v6hl directory from a v5 rasp pi is preventing some sort of initial machine code symbol lookup to fail? If there's anyone who has any recommendations on how I could debug or backtrack this on a lower-level
maybe I'd be really interested in hearing any suggestions you have. Maybe my whole approach in trying to load or bootstrap these initial packages is wrong, I'm not sure.
I did try to perform an objectdump of a sample v6hl binary (/bin/rpm) to see if there were any instruction/op code complaints and there did exist some lines which contained the following ( http://pastebin.com/WmK9tQJt ) :
[root@raspi ~]# objdump
-d /root/f17v6hl/bin/rpm
...
98c4: 00000afc strdeq r0, [r0], -ip
98c8: 000007b4 ; <UNDEFINED> instruction: 0x000007b4
98cc: 00000bdc ldrdeq r0, [r0], -ip
...
So I'm stuck and need some advice. If you need any other files posted or commands run to help try and debug this let me know!
Thanks for your time,
Jon Chiappetta
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