1 # Common defines for all of /sys/boot/i386/
6 LOADER_ADDRESS?= 0x200000
7 WORLD_CCOPTLEVEL= 1 # Force -O1, -O2 implodes
8 CFLAGS+= -ffreestanding -fno-omit-frame-pointer
9 CFLAGS+= -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -msoft-float
11 # override CPU type, so that gcc doesn't insert mmx/sse instructions
16 # if a gcc compiler is being used, identify GCC-only flags,
17 # otherwise check for clang and set value of ASSEMBLER_FLAGS if found
19 CFLAGS+= -mpreferred-stack-boundary=2
20 BOOT2_GCC_FLAGS= -fno-guess-branch-probability \
22 .elif ${CCVER:Mclang*}
23 ASSEMBLER_FLAGS+= -no-integrated-as
26 .if defined(REALLY_X86_64)
27 .include "../pc64/Makefile.inc"