All of lore.kernel.org
 help / color / mirror / Atom feed
From: Herman Theron <htheron@hmo.ac.za>
To: buildroot@busybox.net
Subject: [Buildroot] Prelim RTAI integration help needed
Date: Tue, 7 Sep 2010 08:44:45 +0200 (SAST)	[thread overview]
Message-ID: <47479143.2416.1283841885076.JavaMail.root@her-mx1> (raw)
In-Reply-To: <541305813.2396.1283840257891.JavaMail.root@her-mx1>

Hi Everybody

I'm currently trying to integrate RTAI into buildroot (which is the last hurdle to use buildroot for our embedded data logging systems). I've got a basic setup compiling and would like to share it with the Buildroot community. I've attached rtai.mk which allows me to compile and install RTAI. This is still in infancy, and I would like to get help from the buildroot community. (Please note that this is the minimum requirements for my project, so a lot of stuff is disabled).

There is some issues to get RTAI compiling under buildroot:

#1 You need to first build a linux kernel with an appropriate RTAI kernel patch. Then you can select RTAI and run make again.

#2 When compiling any of the kernel modules, make complains of "unknown option: --sysroot" and exits with an error. I've found that by deleting all the "--sysroot=...." text in the corresponding makefiles, that I was then able to get the compiler going. In the makefile I have made use of the POST_CONFIGURE_HOOK to delete occurrences of "--sysroot" from the GNUmakefile that is giving an error. Question: is this the best way to do it? Any suggestions?

#3 When installing to the staging area, RTAI expects $(STAGING_DIR)/usr/include/asm to be a symlink to $(STAGING_DIR)/usr/include/asm-i386 (for x86 architecture). Currently, $(STAGING_DIR)/usr/include is directory with .h files, and $(STAGING_DIR)/usr/include/asm-i386 is non-existent. I had to create $(STAGING_DIR)/usr/include/asm-i386 by hand, move the files from the "asm" directory to it, delete the "asm", create a softlink from "asm" to "asm-i386". Question, what will be the best way to handle this? In rtai.mk, a patch for RTAI? 

I would appreciate any help on this.

Thanks!

Herman Theron
-------------- next part --------------
A non-text attachment was scrubbed...
Name: rtai.mk
Type: application/octet-stream
Size: 2241 bytes
Desc: not available
URL: <http://lists.busybox.net/pipermail/buildroot/attachments/20100907/72b545d7/attachment.obj>

       reply	other threads:[~2010-09-07  6:44 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <541305813.2396.1283840257891.JavaMail.root@her-mx1>
2010-09-07  6:44 ` Herman Theron [this message]
2010-09-07  7:37   ` [Buildroot] Prelim RTAI integration help needed Thomas Petazzoni
2010-09-07  7:54     ` Herman Theron
2010-09-07  8:29       ` Thomas Petazzoni
2010-09-07  9:08         ` Herman Theron

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=47479143.2416.1283841885076.JavaMail.root@her-mx1 \
    --to=htheron@hmo.ac.za \
    --cc=buildroot@busybox.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.