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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Have you tried ‘puts’ instead of printf?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I have seen a similar thing when printf was used, but without
any format specifiers.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Nick<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
rtems-users-bounces@rtems.org [mailto:rtems-users-bounces@rtems.org] <b>On
Behalf Of </b>João Rasta<br>
<b>Sent:</b> 16 June 2010 18:48<br>
<b>To:</b> Till Straumann<br>
<b>Cc:</b> rtems-users@rtems.com<br>
<b>Subject:</b> Re: rtems with matlab autocode problems<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Yes, here goes<br>
<br>
// dummy printf test code<br>
int upa(void)<br>
{<br>
int i = 0;<br>
<br>
for (i=0; i < 20; i++)<br>
printf("B\n");<br>
<br>
exit(0);<br>
<br>
}<br>
<br>
And the result is:<br>
<br>
<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
¬ÖUf<br>
<br>
Program exited normally. This same code works correctly if i put the function
in the main code instead of the library code. I still have no idea of what can
be causing this, any hints would be apreciated. Mabe a compiler flag is messing
up the library code? <br>
<br>
The matlab autocode makefile generates some flags i don't recognize such as the
DXXX:<br>
<br>
sparc-rtems-gcc -c -O3 -g3 -ffloat-store -fPIC -DUSE_RTMODEL -DMODEL=gnc
-DRT -DNUMST=1 -DTID01EQ=0 -DNCSTATES=0 -DUNIX -DMT=0 -DHAVESTDI<br>
O -I. -I../../rtwlt/matlab/simulink/include
-I../../rtwlt/matlab/extern/include -I../../rtwlt/matlab/rtw/c/src
-I../../rtwlt/matlab/rtw/c/<br>
src/ext_mode/common -I. -I.. -I../../rtwlt/matlab/rtw/c/libsrc
../../rtwlt/matlab/rtw/c/src/rt_sim.c<br>
<br>
<br>
These flags are not used in the "main" code, for instance<br>
<br>
sparc-rtems-gcc -DLOGGING=1 -DLOGNOTORIETY=10 -I"../src"
-I"../src/comms/packet_lib" -I"../src/shell"
-I"../src/comms" -I"../model/gnc_linu<br>
x" -I../rtwlt/matlab/simulink/include -I../rtwlt/matlab/extern/include
-I../rtwlt/matlab/rtw/c/src -I../rtwlt/matlab/rtw/c/src/ext_mode/comm<br>
on -I../rtwlt/matlab/rtw/c/libsrc -O2 -g -Wall -c
-fmessage-length=0 -DRT -MMD -MP -MF"src/common.d" -MT"src/common.d"
-o"src/common.o" ".<br>
./src/common.c"<br>
<br>
Has anyone seen the DXX flags?<br>
<br>
Best,<br>
JM<br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal>On Wed, Jun 16, 2010 at 6:31 PM, Till Straumann <<a
href="mailto:strauman@slac.stanford.edu" target="_blank">strauman@slac.stanford.edu</a>>
wrote:<o:p></o:p></p>
<div>
<p class=MsoNormal>Can you post the offending code?<br>
<br>
T.<o:p></o:p></p>
<div>
<div>
<p class=MsoNormal><br>
<br>
On 06/16/2010 12:02 PM, João Rasta wrote: <o:p></o:p></p>
</div>
</div>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'>Just an update:<br>
<br>
If i do fflush(stdout) inside the test function, the application crashes. Also,
no matter what i put in printf, it allways prints the same characters, but it
detects the \n correctly.. I don't see if this can be related to the compiler..<br>
<br>
<br>
Best,<br>
JM<o:p></o:p></p>
<div>
<p class=MsoNormal>On Wed, Jun 16, 2010 at 4:56 PM, Joel Sherrill <<a
href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a>>
wrote:<o:p></o:p></p>
<div>
<p class=MsoNormal>On 06/16/2010 10:52 AM, João Rasta wrote:<o:p></o:p></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-left:4.8pt;margin-right:0cm'>
<p class=MsoNormal style='margin-bottom:12.0pt'>Hi,<o:p></o:p></p>
<div>
<p class=MsoNormal>No, autocode requires the real-time workbench only, it is
quite straightforward to generate the code.<br>
<br>
I didn't fully understood your question. Anyway, i have tried to compile the
application with gcc and runs fine on linux so it should run on rtems with the
apropriate modifications. However, when i printf("test\n") within the
library finction, it returns strange characters, which doesn't happen in the
function that calls the library function..<o:p></o:p></p>
</div>
</blockquote>
<p class=MsoNormal>Is it including stdio.h? I have seen some targets
where if you don't the variable<br>
arguments stuff gets confused.<br>
<br>
Is the generated code warning free? <o:p></o:p></p>
<div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-left:4.8pt;margin-right:0cm'>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
I suspect of a compilation flag/option i may be missing on the library. Do you
have any idea?<o:p></o:p></p>
</blockquote>
</div>
<p class=MsoNormal>As long as it is compiled the same as the rest of the app,
it should be ok. <o:p></o:p></p>
<div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;
margin-left:4.8pt;margin-right:0cm'>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Also, i don't need any rtems
primitives/configurations on the library functions right? I'm assuimng It is
enough to have the rtems configuration on the "main" file.<o:p></o:p></p>
</blockquote>
</div>
<p class=MsoNormal>Right.<br>
<br>
Can you print from other tasks?<br>
<br>
--joel<o:p></o:p></p>
<p class=MsoNormal><br>
Best,<br>
JM <o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<br>
<br>
<br>
On Wed, Jun 16, 2010 at 4:42 PM, Joel Sherrill <<a
href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a>
<mailto:<a href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a>>>
wrote:<br>
<br>
On 06/16/2010 10:38 AM, João Rasta wrote:<br>
<br>
Hi,<br>
<br>
I'm having trouble running an rtems application that
uses code<br>
generated from matlab using autocode. It all goes
well until a<br>
function of this library is called: printfs return
awkward<br>
characters and then the application crashes.<br>
<br>
I have seen references to this before. Is this hard to do?
Are<br>
there instructions?<br>
Standard glue code, etc.<br>
<br>
1) Is there any obvious reason to why printfs of the
autocode<br>
generated functions are not working properly? They
are<br>
compiled with sparc-rtems-gcc, as the main code.<br>
<br>
2) Are there any special flags needed to be passed
to the<br>
compiler in order to link other libraries? Or some
rtems<br>
configuration..<br>
<br>
Is there any chance it is printing floating point numbers from a<br>
non-FP task?<br>
<br>
<br>
Best,<br>
JM<br>
<br>
<br>
<br>
-- Joel Sherrill, Ph.D.
Director of Research& Development<br>
<a href="mailto:joel.sherrill@OARcorp.com" target="_blank">joel.sherrill@OARcorp.com</a>
On-Line Applications Research<br>
Ask me about RTEMS: a free RTOS Huntsville AL 35805<br>
Support Available
(256) 722-9985<br>
<br>
<br>
<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<br>
-- <br>
Joel Sherrill, Ph.D. Director of
Research& Development<br>
<a href="mailto:joel.sherrill@OARcorp.com" target="_blank">joel.sherrill@OARcorp.com</a>
On-Line Applications Research<br>
Ask me about RTEMS: a free RTOS Huntsville AL 35805<br>
Support Available (256)
722-9985<br>
<br>
<o:p></o:p></p>
</div>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</div>
<pre><o:p> </o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>rtems-users mailing list<o:p></o:p></pre>
<div><pre><a href="mailto:rtems-users@rtems.org" target="_blank">rtems-users@rtems.org</a><o:p></o:p></pre><pre><a
href="http://www.rtems.org/mailman/listinfo/rtems-users" target="_blank">http://www.rtems.org/mailman/listinfo/rtems-users</a><o:p></o:p></pre><pre> <o:p></o:p></pre></div>
</blockquote>
<p class=MsoNormal><o:p> </o:p></p>
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