I am trying to compile arduino code under codeblocks with avr-gnu compiler. I was getting this error:
avr-ld.exe unrecognized emulation mode: mcu=atmega328p.
Supported emulations:avr2 avr1 avr25 avr3 avr31 avr35 avr4 avr5 avr51 avr6 avrxmega1 avrxmega2 avrxmega3 avrxmega4 avrxmega5 avrxmega6 avrxmega7 avrtiny
I found this page: https://gcc.gnu.org/onlinedocs/gcc/AVR-Options.html which suggests that it should be linked under avr5 sim mode, so I added -mmcu=avr5 to linker options. Now I am getting:
avr-ld.exe unrecognized emulation mode: mcu=avr5
Supported emulations:avr2 avr1 avr25 avr3 avr31 avr35 avr4 avr5 avr51 avr6 avrxmega1 avrxmega2 avrxmega3 avrxmega4 avrxmega5 avrxmega6 avrxmega7 avrtiny
How is avr5 unrecognized if it is supported?o0 I tried few different toolchains from few different years but it seems that linker cant interpret this emulation mode correctly. Newer toolchains had support for 328p but still somehow dont work. I also tried creating CodeBlocks project dedicated for Arduino but the difference is that it passes -mmcu=atmega328p itself and still doesnt work on this or newer toolchains. Update: There is something that I am totally missing here. I changed linker to a standard x86 32 ld.exe from Mingw and passed -mmcu=i386pe and I am getting the similar error:
ld.exe unrecognized emulation mode: mcu=i386pe
Supported emulations:i386pe
So this only leads to my lack of understanding of mechanisms how the linker emulation mode is selected/configured.