Should demos/toggle/lmm_toggle/toggle.c compile w/ -mcog option?

mindrobots

If any of the examples would, I thought the lmm_toggle version might. when I try, I get errors.

rick@linux-server:~/demos/toggle/lmm_toggle$ propeller-elf-gcc -o toggle-cog.elf -mcog toggle.c
/usr/local/propeller/lib/gcc/propeller-elf/4.6.1/../../../../propeller-elf/bin/ld: cannot find crt_cog.o: No such file or directory
/usr/local/propeller/lib/gcc/propeller-elf/4.6.1/../../../../propeller-elf/bin/ld: cannot find crtend_cog.o: No such file or directory
collect2: ld returned 1 exit status
rick@linux-server:~/demos/toggle/lmm_toggle$

does something need to be done in the c source to set up or indicate the cog memory model is going to be the target?

There's a crt0_cog.s in the libraries but no crt_cog.s - I'm not sure where to go from here.

If lmm_toggle won't go into a COG model, I'd like to come up with a toggle program that would.

Help!

Thanks!

ersmith

The intention was that you could compile programs using just propeller-elf-gcc -mcog, but there are some bugs in the alpha release that prevent that (the library makefile, and also the driver program). It's possible to work around these bugs by using an explicit linker script -- see for example the fibo/cog demo. We should have these bugs fixed soon.

Thanks,
Eric

mindrobots wrote: »

If any of the examples would, I thought the lmm_toggle version might. when I try, I get errors.

rick@linux-server:~/demos/toggle/lmm_toggle$ propeller-elf-gcc -o toggle-cog.elf -mcog toggle.c
/usr/local/propeller/lib/gcc/propeller-elf/4.6.1/../../../../propeller-elf/bin/ld: cannot find crt_cog.o: No such file or directory
/usr/local/propeller/lib/gcc/propeller-elf/4.6.1/../../../../propeller-elf/bin/ld: cannot find crtend_cog.o: No such file or directory
collect2: ld returned 1 exit status
rick@linux-server:~/demos/toggle/lmm_toggle$

does something need to be done in the c source to set up or indicate the cog memory model is going to be the target?

There's a crt0_cog.s in the libraries but no crt_cog.s - I'm not sure where to go from here.

If lmm_toggle won't go into a COG model, I'd like to come up with a toggle program that would.

Help!

Thanks!

mindrobots

Thanks, Eric!

That'll work!