sys/boot/pc32/Makefile.inc

   1 # Common defines for all of /sys/boot/i386/
   2
   3 .if !target(__pc32__)
   4 __pc32__:
   5
   6 LOADER_ADDRESS?= 0x200000
   7 # Force -O, -O2 implodes
   8 #
   9 CFLAGS+=        -O
  10 CFLAGS+=        -ffreestanding
  11 CFLAGS+=        -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -msoft-float
  12
  13 # override CPU type, so that gcc doesn't insert mmx/sse instructions
  14 FORCE_CPUTYPE=  i386
  15
  16 WARNS?= 2
  17
  18 # if a gcc compiler is being used, identify GCC-only flags,
  19 # otherwise check for clang and set value of ASSEMBLER_FLAGS if found
  20 .if ${CCVER:Mgcc*}
  21 CFLAGS+=                -mpreferred-stack-boundary=2
  22 BOOT2_GCC_FLAGS=        -fno-guess-branch-probability \
  23                         -fno-unit-at-a-time
  24 .elif ${CCVER:Mclang*}
  25 ASSEMBLER_FLAGS+=       -no-integrated-as
  26 .endif
  27
  28 .if defined(REALLY_X86_64)
  29 .include "../pc64/Makefile.inc"
  30 .endif
  31 .endif