On 03/20/2012 02:48 PM, Glen Wernersbach wrote:
I don't think this is it directly.
This program was made on the same kernel prior to patching it with Xeno.
It should still run like any other linux program.
- what does "program not working" mean in your case? Any errno return we
could interpret? Any strace output?
- what if you disable CONFIG_XENO_OPT_SKIN_RTDM, leaving PERVASIVE on?
On 3/20/12 9:44 AM, "Philippe Gerum"<r...@xenomai.org> wrote:
On 03/20/2012 02:28 PM, Glen Wernersbach wrote:
Hi All,
I install Xenomai 2.6.0 on AT91SAM9G20 system and have found that when
CONFIG_XENO_OPT_PERVASIVE is enabled my standard non real time linux
serial write then read serial program does not work.
If I turn off CONFIG_XENO_OPT_PERVASIVE, my serial program does work.
Any ideas why?????
A possible explanation would be that your application links with the
Xenomai POSIX lib (libpthread_rt), albeit it should not.
With pervasive support disabled, any routing from the overloaded POSIX
I/O calls to the Xenomai kernel would then fail.
If so, you should not link against the Xenomai libs if you need no -rt
service, or prevent symbol wrapping only for the POSIX I/O calls by
prefixing them by __real_* if you want Xenomai-enabled POSIX services
except the I/O support.
See http://xenomai.org/index.php/Porting_POSIX_applications_to_Xenomai
Also, when you turn CONFIG_XENO_OPT_PERVASIVE you get this error:
CC kernel/xenomai/nucleus/synch.o
kernel/xenomai/nucleus/synch.c: In function 'xnsynch_release_thread':
kernel/xenomai/nucleus/synch.c:688:3: error: implicit declaration of
function 'xnthread_get_rescnt'
kernel/xenomai/nucleus/synch.c:689:4: error: implicit declaration of
function 'xnshadow_send_sig'
I had to go in and make the code for that option befor it always false.
http://git.xenomai.org/?p=xenomai-2.6.git;a=commit;h=41b4f9c0f4bdf06107a788b76
2b5cf662b1d4108
Glen
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