Re: [Xenomai-help] Cross-link.c ---RTSER_RTIOC_WAIT_EVENT

[Wolfgang Grandegger <wg@domain.hid>]

On 04/12/2012 10:51 AM, Minh GIANG wrote:
> Hello sir,
> 
> Here is the message after doing your command:
> 
> giang@domain.hid$
> make XENO=/usr/xenomai/bin
> --xeno-cflags is deprecated, use --skin=name --cflags instead
> --xeno-ldflags is deprecated, use --skin=name --ldflags instead
> gcc -I/usr/xenomai/include -D_GNU_SOURCE -D_REENTRANT -Wall
> -Werror-implicit-function-declaration -pipe -D__XENO__   -L/usr/xenomai/lib
> -lxenomai -lpthread -lrt  -lnative -lrtdm -Xlinker -rpath -Xlinker

That's how the program should be comiled and linked.

> /usr/xenomai/lib  cross-link.c   -o cross-link
> cross-link.c: In function ‘write_task_proc’:
> cross-link.c:167: warning: format ‘%d’ expects type ‘int’, but argument 2
> has type ‘ssize_t’
> cross-link.c:167: warning: format ‘%d’ expects type ‘int’, but argument 3
> has type ‘ssize_t’
> cross-link.c: In function ‘read_task_proc’:
> cross-link.c:227: warning: format ‘%d’ expects type ‘int’, but argument 2
> has type ‘ssize_t’
> cross-link.c:227: warning: format ‘%d’ expects type ‘int’, but argument 3
> has type ‘ssize_t’
> giang@domain.hid$
> ./cross-link
> Xenomai: binding failed: Operation not permitted.
> giang@domain.hid$ su
> Mot de passe :
> root@domain.hids/serial#
> ./cross-link
> main : write-file opened
> main : write-config written
> main : read-file opened
> main : read-config written
> main : write-task created
> main : read-task created
> main : starting write-task
> main : starting read-task
>  Nr |   write->irq    |    irq->read    |   write->read   |
> -----------------------------------------------------------
>   0 |          104495 |          617720 |          722215
>   1 |          104649 |          617061 |          721710
>   2 |          104360 |          617820 |          722180
>   3 |          104906 |          617050 |          721956
>   4 |          105794 |          617188 |          722982
>   5 |          103504 |          618103 |          721607
>   6 |          104643 |          617084 |          721727
>   7 |          106633 |          617767 |          724400
> 
> oh, it seems to work perfectly, i don't know why it works in this case when
> i lauched it in the terminal linux, i copied exactly the program in Eclipse
> C++ and it doesn't work. Ah the only thing i have changed (otherwise my
> program don't compile in Eclipse), is
> 
> static const struct rtser_config read_config = {
> 0xFFFF,
> 115200,
> RTSER_DEF_PARITY,
> RTSER_DEF_BITS,
> RTSER_DEF_STOPB,
> RTSER_DEF_HAND,
> RTSER_DEF_FIFO_DEPTH,
> RTSER_DEF_TIMEOUT,
> RTSER_DEF_TIMEOUT,
> 1000000000, /* 1 s */
> RTSER_RX_TIMESTAMP_HISTORY,
> RTSER_EVENT_RXPEND,
> };
> 
> static const struct rtser_config write_config = {
> RTSER_SET_BAUD | RTSER_SET_TIMESTAMP_HISTORY,
> 115200,
> RTSER_DEF_TIMESTAMP_HISTORY,
> /* the rest implicitely remains default */
> };
> 
> maybe, i don't compile with good parameters in Eclipse?

Yes, that's your problem. And exactly to avoid such problems, Xenomai
provides the script "xeno-config" to retrieve proper compiler and linker
options.

> my version Xenomai 2.6.0

I also recommend to update to a more recent version.

Wolfgang.