new to linux RT

new to linux RT

[Michael Mueller]

Hi,

I am new to linux RT.  Not so new to rtos.  Have compiled/loaded/run
kernels from kernel.org with success in past.

I am trying to find a kernel and RT patch combination that are
compatible.  Not so much success.  Latest attempt is with
linux-2.6.31.12 where I am getting:

  LD      init/built-in.o
  LD      .tmp_vmlinux1
drivers/built-in.o(.init.text+0x3c5e): In function `con_init':
: undefined reference to `.L1446'
make: *** [.tmp_vmlinux1] Error 1

this is using the default .config

i've had this problem in other kernels as well

I was successful building 2.6.27.5 but there is not a rt patch for this release

Linux g115 2.6.27.45 #2 Tue Feb 16 11:56:21 EST 2010 i686 i686 i386 GNU/Linux

my gcc is:

Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.6/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-java-awt=gtk
--host=i386-redhat-linux
Thread model: posix
gcc version 3.4.6 20060404 (Red Hat 3.4.6-11)

any ideas, pointers, corrections, admonishments, chastisements,
thoughts, etc. would be appreciated

thanks
-- 
Mike Mueller
Xygnada Technology, Inc.
Raleigh, NC, USA
http://www.ss7box.com
ss7box@gmail.com
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Re: new to linux RT

[Remy Bohmer]

Hi,

2010/3/5 Michael Mueller <ss7box@gmail.com>:
> Hi,
>
> I am new to linux RT.  Not so new to rtos.  Have compiled/loaded/run
> kernels from kernel.org with success in past.
> I am trying to find a kernel and RT patch combination that are
> compatible.  Not so much success.  Latest attempt is with
> linux-2.6.31.12 where I am getting:
>
>  LD      init/built-in.o
>  LD      .tmp_vmlinux1
> drivers/built-in.o(.init.text+0x3c5e): In function `con_init':
> : undefined reference to `.L1446'
> make: *** [.tmp_vmlinux1] Error 1

> ... <snip>

> my gcc is:
> gcc version 3.4.6 20060404 (Red Hat 3.4.6-11)

First start by using a recent compiler.

> ... <snip>

> any ideas, pointers, corrections, admonishments, chastisements,
> thoughts, etc. would be appreciated

Then start reading this:
http://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO

You can find the latest RT-patches here:
http://www.eu.kernel.org/pub/linux/kernel/projects/rt/
The patches suit the same base kernel as listed in the name of the patch.

Kind regards,

Remy
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Re: new to linux RT

[Michael Mueller]

On Fri, Mar 5, 2010 at 3:39 PM, Remy Bohmer <linux@bohmer.net> wrote:

>> my gcc is:
>> gcc version 3.4.6 20060404 (Red Hat 3.4.6-11)
>
> First start by using a recent compiler.

 thanks, will do

> Then start reading this:
> http://rt.wiki.kernel.org/index.php/RT_PREEMPT_HOWTO

have not read thoroughly yet; thanks again
>
> You can find the latest RT-patches here:
> http://www.eu.kernel.org/pub/linux/kernel/projects/rt/
> The patches suit the same base kernel as listed in the name of the patch.

i'm here instead; looks same; again, thanks

http://www.kernel.org/pub/linux/kernel/projects/rt/
-- 
mike