Sample of objdump projet

Some c files are compiled 2 times, one for 32 bit functions an once again
for 64 bt functions.
There is one c file for 2 object file
I mean, like that :
gcc -DCLASS=32 -c -o obj/init32.o src/init.c
gcc -DCLASS=64 -c -o obj/init64.o src/init.c
gcc -o my_objdump obj/init32.o obj/init64.o