On Fri, 2023-06-23 at 21:43 +0800, WANG Xuerui wrote: > -cflags-y += -G0 -pipe -msoft-float -msoft-float should not be removed. Our consensus (made when I was developing https://gcc.gnu.org/r13-6500) is -mabi=lp64s does *not* disable floating point instructions, but only disable FPRs for passing arguments and return values. So w/o -msoft-float (or -mfpu=none) GCC is allowed to generate FP instructions everywhere in kernel and it may cause kernel FPD exception in the future. -- Xi Ruoyao <xry111@xxxxxxxxxxx> School of Aerospace Science and Technology, Xidian University
