linker issue, undefined reference

RE: linker issue, undefined reference

ChrisRu — Tue, 17 Nov 2020 00:34:38 GMT

Hi Simon,

I found the solution meanwhile. If I move the functions out the the main.c they can't be static any more.
Change the definitions to a non-static function make the trick!
Same with global static variables which I will move to there modules now.

Regards

Chris

RE: linker issue, undefined reference

ChrisRu — Tue, 17 Nov 2020 00:02:34 GMT

Hi Simon,

I used the SEGGER native method to add new files,
1st) add a Folder 'Implementation'
2nd) add new files to the folder bsphandler.c usbhandler.c
3rd) move static functions from main.c to bsphander.c & usbhandler.c add the definitions to header files
bsphandler.h & usbhandler.h and use #include directive in main to make them
available for the Compile process.

Both objects are in the projects output directory. (xxxhandler.o)

My missing link is, where to add so that the linker will use them in the SEGGER Embedded environment.
They got compiled but the linker does not inherit them.

-Chris

RE: linker issue, undefined reference

Simonr — Mon, 16 Nov 2020 13:33:24 GMT

Hi Chris

Where do you define the cdc_acm_user_ev_handler() function in your application. Seeing as you moved it from main.c to a dedicated file, you likely have to include the file defining cdc_acm_user_ev_handler() to this dedicated file. I assume the following errors you're seeing are consequential errors.

Best regards,

Simon