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><br><div class="gmail_quote">On Wed, Jun 16, 2010 at 6:31 PM, Till Straumann <span dir="ltr"><<a href="mailto:strauman@slac.stanford.edu" target="_blank">strauman@slac.stanford.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">
Can you post the offending code?<br>
<br>
T.<div><div></div><div><br>
<br>
On 06/16/2010 12:02 PM, João Rasta wrote:
</div></div><blockquote type="cite"><div><div></div><div>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<br>
<br>
<div class="gmail_quote">On Wed, Jun 16, 2010 at 4:56 PM, Joel
Sherrill <span dir="ltr"><<a href="mailto:joel.sherrill@oarcorp.com" target="_blank">joel.sherrill@oarcorp.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>On 06/16/2010 10:52 AM, João Rasta wrote:<br>
</div>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
<br>
<div>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..<br>
</div>
</blockquote>
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?
<div><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
I suspect of a compilation flag/option i may be missing on the library.
Do you have any idea?<br>
<br>
</blockquote>
</div>
As long as it is compiled the same as the rest of the app, it should be
ok.
<div><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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.<br>
<br>
</blockquote>
</div>
Right.<br>
<br>
Can you print from other tasks?<br>
<br>
--joel<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Best,<br>
JM
<div>
<div><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>
<br>
</div>
</div>
</blockquote>
<div>
<div><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>
</div>
</div>
</blockquote>
</div>
<br>
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