I'm trying to link two object files from Makefile, but the linker keeps throwing errors at me. I can't seem to find this errors whe I search the web, so I hope anyone here can help.
In my Makefile, I successfully compile two .cpp-files to object files
DEVICE = atmega328p
#DEVICE = avr5
AVR-G++ = avr-gcc -Wall -Os -mmcu=$(DEVICE)
default: compile
compile:
$(AVR-G++) -c blink.cpp -o blink.o
$(AVR-G++) -c main.cpp -o main.o
link:
$(AVR-G++) -o main.elf blink.o main.o
When I try to link, these errors show up:
[0][jole@LeitheMain ~/mnt/projects/avr]
$ make link
avr-gcc -Wall -Os -mmcu=atmega328p -o main.elf blink.o main.o
/usr/bin/avr-ld: cannot find crtatmega328p.o: No such file or directory
/usr/bin/avr-ld: cannot find -lm: No such file or directory
/usr/bin/avr-ld: cannot find -lc: No such file or directory
/usr/bin/avr-ld: cannot find -latmega328p: No such file or directory
collect2: error: ld returned 1 exit status
make: *** [Makefile:15: link] Error 1
I've done a few hours searching the web, and reading avr-gcc documentation, but I still don't know why I get these erros. Is there anyone here who can help?
I've tried installing my avr-gcc toolchain again, I've read avr-gcc documentation, there is very little on -lm/-lc.
For the crtatmega328p.o, I've copied the file into the current working directory. This gets rid of that particular error, but the others remain.
I've also installed glibc, as suggested below here.
Best regards /Jon
