DSPLIB wont build: unresolved symbol _DSBLINKDATA_

Markus Grunwald

Expert 2060 points

Building the DSPLIB example from this page fails for me:

I followed the instructions from http://processors.wiki.ti.com/index.php?oldid=36494#DSPLink . All went very smoothly and the examples run fine. Then I wanted to run the DSPLIB example from here:

http://processors.wiki.ti.com/index.php?title=Example_DSPLIB/DSPLink_Application_on_OMAP-L1x

The sources compiled, but the linker failed:

make -f dsp_makefile
Building DSP/BIOS file...
Compiling Debug...
<Linking>

undefined         first referenced
symbol               in file
---------         ----------------
_DSPLINKDATA_init /home/gru/OMAPL137_arm_1_00_00_11/dsplink-1_61_03-prebuilt/packages/dsplink/dsp/export/BIN/DspBios/OMAPL1XX/OMAPL1XXGEM_0/DEBUG/dsplink.lib<dsplink.obj>

error: unresolved symbols remain
error: errors encountered during linking; "Debug/dsplib_server.out" not built

>> Compilation failure

I've found this hint: http://processors.wiki.ti.com/index.php/Building_DSPLink#Enabling_XDC-based_integration

So I restarted building DSPLINK, this time with the XDC-based integration. Unfortunately, it didn't change anything...

Thanks for any help,

Markus

over 15 years ago

0 Brad Griffis over 15 years ago

TI__Guru*** 125430 points

http://processors.wiki.ti.com/index.php/Codec_Engine_FAQ#Why_is_my_linker_failing_to_find_the__DSPLINKDATA_init_symbol.3F

0 Brad Griffis over 15 years ago in reply to Brad Griffis

TI__Guru*** 125430 points

Sorry, I see that page points to the one you already tried!

0 Brad Griffis over 15 years ago in reply to Brad Griffis

TI__Guru*** 125430 points

Did you (re-)build dsplink at any point? I see a couple options:

When building dsplink make sure that you do NOT enable the CHNL component (which is what causes that library to be needed). FYI, this is mentioned briefly here.
Add -ldsplinkdata.lib to the LIBS variable in dsp_makefile.

0 Brad Griffis over 15 years ago in reply to Brad Griffis

TI__Guru*** 125430 points

By the way, I should mention there's actually a better solution available now for calling dsplib functions from the ARM. It's called C6Accel. I think C6Accel is a more complete solution and you can probably get better support from the team that did it. Since it was very recently released they are eager to find any usability issues, etc. and to help customers get it working!

0 Joe Coombs over 15 years ago in reply to Brad Griffis

TI__Expert 8890 points

I think that Brad's second suggestion is on point. Since that example application was written, the DSPLINK package has changed and now uses an additional library file. Find the following line in the file dsp_makefile:

LIBS := -ldsplink.lib -ldsplinkpool.lib -ldsplinkmpcs.lib -ldsplinkmplist.lib -ldsplinkmsg.lib -ldsplinknotify.lib -ldsplinkringio.lib -ldsplib674x.lib

At the end, add one more library:

-ldsplinkdata.lib

That should fix the problem. Sorry for the inconvenience; we're planning to address this issue in a future release of the DSPLIB.

0 Markus Grunwald over 15 years ago in reply to Brad Griffis

Expert 2060 points

Hello,

Thanks for the tip. But the dsplib example is just what I need while learning to cope with the C6747. For now, this is only some "training" on an OMAPL137 evalboard, but we will move on to our own system without OMAP and without ARM. So the C6Accel wouldn't help me.

But your hint with -ldsplinkdata.lib was just what I needed, thanks :)

Markus

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DSPLIB wont build: unresolved symbol _DSBLINKDATA_