[meta-xilinx] gcc-cross-initial libgcc configure/compilation problems

[Nathan Rossi]

Hi Martin,

The error you see with attr has been fixed in the newest poky (make sure you do a pull). There was a bug in the attr release tarball that prevents the build from using a newer configure/config.sub.

Also regarding the unrecognized options warning, you can safely ignore them, the attr bug also causes these warnings (as the older ./configure does not support them).

However for master the microblaze toolchain is broken (well technically not the toolchain but the recipe), you may have noticed a message to meta-xilinx mailing list that went out earlier about patch failure. Still working on resolving it. However if you are after a functional build you should use dora for the time being.

Regards,
Nathan

________________________________
From: meta-xilinx-bounces at yoctoproject.org [meta-xilinx-bounces at yoctoproject.org] on behalf of Martin Townsend [martin.townsend at xsilon.com]
Sent: Friday, 29 November 2013 12:16 AM
To: Elvis Dowson
Cc: meta-xilinx at yoctoproject.org
Subject: Re: [meta-xilinx] gcc-cross-initial libgcc configure/compilation problems

Hi Elvis,

Thanks for the info, this is what I was starting to do so it was good to see I was on the right lines.  I have created myself a layer and added an ml605-microblazeel.conf file to setup my machine and I have got a lot further.   I've been tripped up by the attr package which gives me the following output:

| configure: WARNING: unrecognized options: --disable-silent-rules, --disable-dependency-tracking, --with-libtool-sysroot, --enable-nls
| checking build system type... x86_64-pc-linux-gnu
| checking host system type... Invalid configuration `microblazeel-poky-linux': machine `microblazeel-poky' not recognized
| configure: error: /bin/bash ./config.sub microblazeel-poky-linux failed


So it looks like I've got a bunch of unrecognized options which are Warnings but the error occurs as it doesn't understand microblazeel-poky-linux.  Looking through the work area I see that config.sub supports microblaze but not microblazeel.  So I hacked config.sub to add in microblazeel and it has built.  Is this the correct thing to do or should I be telling configure to use microblaze-poky-linux.

Best Regards,
Martin.

On 28/11/13 12:45, Elvis Dowson wrote:
Hi Martin,

On Nov 28, 2013, at 4:04 PM, Martin Townsend <martin.townsend at xsilon.com<mailto:martin.townsend at xsilon.com>> wrote:

I did try and received the following error
ERROR:  OE-core's config sanity checker detected a potential misconfiguration.
   Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
   Following is the list of potential problems / advisories:

   Please set a valid MACHINE in your local.conf or environment

So I tried microblaze as well as microblazeel for the MACHINE with no joy.

If you look at the meta-xilinx repository, it currently lists the following machines

http://git.yoctoproject.org/cgit/cgit.cgi/meta-xilinx/tree/conf/machine

kc705-trd-microblazeel.conf
qemumicroblaze.conf
qemuzynq.conf
zc702-zynq7.conf
zc706-zynq7.conf
zedboard-zynq7.conf

If you're using an ML605 board, try to create a new ml605-microblazeel.conf file with the following contents, but obtain the correct *.dts and xparameters.h file and .kconfig.cfg file from say the Petalinux distribution.

Filename: ml605-microblazeel.conf

#@TYPE: Machine
#@NAME: ml605-microblazeel
#@DESCRIPTION: Machine support for Xilinx ML605 Evaluation Board.
#

TARGET_CPU = "microblazeel"
MACHINE_FEATURES := ""

require conf/machine/include/tune-microblaze.inc
require conf/machine/include/machine-xilinx-default.inc
TUNE_FEATURES_tune-microblaze += "v8.50 little-endian barrel-shift pattern-compare reorder multiply-low"

SERIAL_CONSOLE = "115200 ttyS0"

# Note: Obtain the correct files for the ML605
#MACHINE_DEVICETREE := "ml605/ml605-microblazeel.dts"
#MACHINE_KCONFIG := "ml605/ml605-microblazeel.kconfig.cfg"     # try using the kernel defaults first
#MACHINE_XPARAMETERS := "ml605/ml605-microblazeel.xparameters.h"


Then set your machine to ml605-microblazeel, and you should be able to build a toolchain.

However, the kernel build process will fail if you dont have the correct dts and xparameters.h file, you might need to tweak the *.dts, .kconfig.cfg and xparameters.h file, till you get it right, to build the kernel and execute in on the board.

You should do it in two steps,
- build the toolchain using yocto
- build the kernel, using the xilinx linux kernel repository, and the kernel to boot properly. After that, you can include the dts, and xparameters.h files, and have yocto build the kernel.

Best regards,

Elvis Dowson








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