OSDev.org

ngx wrote:

rizxt wrote:try switching --target x86_64-elf and --arch x86_64-elf to --target=x86_64-elf and -march=x86_64

Yes thanks, that also compiles well, but what exactly is the difference between -march and -arch for the linker - because linker said it would ignore -arch, but does not say same thing when I use -march?

But I probably figured out the problem with the address printing, I checked if the address is correct and not garbage not by looking at printf output, but instead by using the if comparison and it showed that the variable stores the right address. The problem is then with my printf implementation, I would be very grateful if you helped me to figure out the problem with printf(I think it is somehow related to 64-Bit mode switch because it worked in 32-Bit mode)

My printf implementation is starting on line 149 in https://pastebin.com/5LhRHSUA

ngx wrote:

rizxt wrote:try switching --target x86_64-elf and --arch x86_64-elf to --target=x86_64-elf and -march=x86_64

Yes thanks, that also compiles well, but what exactly is the difference between -march and -arch for the linker - because linker said it would ignore -arch, but does not say same thing when I use -march?

But I probably figured out the problem with the address printing, I checked if the address is correct and not garbage not by looking at printf output, but instead by using the if comparison and it showed that the variable stores the right address. The problem is then with my printf implementation, I would be very grateful if you helped me to figure out the problem with printf(I think it is somehow related to 64-Bit mode switch because it worked in 32-Bit mode)

My printf implementation is starting on line 149 in https://pastebin.com/5LhRHSUA