1# $FreeBSD$ 2 3.include "defs.mk" 4 5.if !defined(__BOOT_MAKEFILE_INC__) 6__BOOT_MAKEFILE_INC__=${MFILE} 7 8CFLAGS+=-I${SASRC} 9 10SSP_CFLAGS= 11 12# Add in the no float / no SIMD stuff and announce we're freestanding 13CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD} 14.if ${MACHINE_CPUARCH} == "aarch64" 15CFLAGS+= -mgeneral-regs-only 16.else 17CFLAGS+= -msoft-float 18.endif 19 20.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1) 21CFLAGS+= -march=i386 22CFLAGS.gcc+= -mpreferred-stack-boundary=2 23.endif 24 25 26.if ${MACHINE_CPUARCH} == "arm" 27# Do not generate movt/movw, because the relocation fixup for them does not 28# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8). 29# Also, the fpu is not available in a standalone environment. 30.if ${COMPILER_VERSION} < 30800 31CFLAGS.clang+= -mllvm -arm-use-movt=0 32.else 33CFLAGS.clang+= -mno-movt 34.endif 35CFLAGS.clang+= -mfpu=none 36.endif 37 38# The boot loader build uses dd status=none, where possible, for reproducible 39# build output (since performance varies from run to run). Trouble is that 40# option was recently (10.3) added to FreeBSD and is non-standard. Only use it 41# when this test succeeds rather than require dd to be a bootstrap tool. 42DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true 43DD=dd ${DD_NOSTATUS} 44 45.if ${MK_LOADER_FORCE_LE} != "no" 46.if ${MACHINE_ARCH} == "powerpc64" 47CFLAGS+= -mlittle-endian 48.endif 49.endif 50 51.endif 52