Hi Florian, I build "device driver code" in userspace code, but using the same headers from kernel source code. In the driver code, we include "linux/pci.h" header, and through include chain arch_static_branch() got pulling through inline functions. Regards, Hon -----Original Message----- From: Florian Weimer <fweimer@xxxxxxxxxx> Sent: Monday, September 13, 2021 12:43 PM To: HON LUU <hon@xxxxxxxxxxxxxxxx> Cc: Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx>; gcc-help@xxxxxxxxxxx Subject: Re: gcc question * HON LUU: > Yes, understood the point. I would have to "not using -fPIC" if I > could not found any way out. Anyway if I willing to change the asm > function to change the constraint to something different from "i" > (immediate), I wonder if the question is still proper. Are you building userspace code or kernel code? Why do you end up compiling arch_static_branch? Thanks, Florian
