1# $FreeBSD$ 2 3.if !defined(__BOOT_DEFS_MK__) 4__BOOT_DEFS_MK__=${MFILE} 5 6# We need to define all the MK_ options before including src.opts.mk 7# because it includes bsd.own.mk which needs the right MK_ values, 8# espeically MK_CTF. 9 10MK_CTF= no 11MK_SSP= no 12MK_PROFILE= no 13MAN= 14.if !defined(PIC) 15NO_PIC= 16INTERNALLIB= 17.endif 18# Should be NO_CPU_FLAGS, but bsd.cpu.mk is included too early in bsd.init.mk 19# via the early include of bsd.opts.mk. Moving Makefile.inc include earlier in 20# that file causes weirdness, so this is the next best thing. We need to do this 21# because the loader needs very specific flags to work right, and things like 22# CPUTYPE?=native prevent that, and introduce an endless game of whack-a-mole 23# to disable more and more features. Boot loader performance is never improved 24# enough to make that hassle worth chasing. 25_CPUCFLAGS= 26 27.include <src.opts.mk> 28.include <bsd.linker.mk> 29 30WARNS?= 1 31 32BOOTSRC= ${SRCTOP}/stand 33EFISRC= ${BOOTSRC}/efi 34EFIINC= ${EFISRC}/include 35EFIINCMD= ${EFIINC}/${MACHINE} 36FDTSRC= ${BOOTSRC}/fdt 37FICLSRC= ${BOOTSRC}/ficl 38LDRSRC= ${BOOTSRC}/common 39LIBLUASRC= ${BOOTSRC}/liblua 40LIBOFWSRC= ${BOOTSRC}/libofw 41LUASRC= ${SRCTOP}/contrib/lua/src 42SASRC= ${BOOTSRC}/libsa 43SYSDIR= ${SRCTOP}/sys 44UBOOTSRC= ${BOOTSRC}/uboot 45ZFSSRC= ${SASRC}/zfs 46OZFS= ${SRCTOP}/sys/contrib/openzfs 47ZFSOSSRC= ${OZFS}/module/os/freebsd/ 48ZFSOSINC= ${OZFS}/include/os/freebsd 49LIBCSRC= ${SRCTOP}/lib/libc 50 51BOOTOBJ= ${OBJTOP}/stand 52 53# BINDIR is where we install 54BINDIR?= /boot 55 56# LUAPATH is where we search for and install lua scripts. 57LUAPATH?= /boot/lua 58FLUASRC?= ${SRCTOP}/libexec/flua 59 60LIBSA= ${BOOTOBJ}/libsa/libsa.a 61.if ${MACHINE} == "i386" 62LIBSA32= ${LIBSA} 63.else 64LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a 65.endif 66 67# Standard options: 68CFLAGS+= -nostdinc 69# Allow CFLAGS_EARLY.file/target so that code that needs specific stack 70# of include paths can set them up before our include paths. Normally 71# the only thing that should be there are -I directives, and as few of 72# those as possible. 73CFLAGS+= ${CFLAGS_EARLY} ${CFLAGS_EARLY.${.IMPSRC:T}} ${CFLAGS_EARLY.${.TARGET:T}} 74.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 75CFLAGS+= -I${BOOTOBJ}/libsa32 76.else 77CFLAGS+= -I${BOOTOBJ}/libsa 78.endif 79CFLAGS+= -I${SASRC} -D_STANDALONE 80CFLAGS+= -I${SYSDIR} 81# Spike the floating point interfaces 82CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface 83.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64" 84# Slim down the image. This saves about 15% in size with clang 6 on x86 85# Our most constrained /boot/loader env is BIOS booting on x86, where 86# our text + data + BTX have to fit into 640k below the ISA hole. 87# Experience has shown that problems arise between ~520k to ~530k. 88CFLAGS.clang+= -Oz 89CFLAGS.gcc+= -Os 90CFLAGS+= -ffunction-sections -fdata-sections 91.endif 92 93# GELI Support, with backward compat hooks (mostly) 94.if defined(LOADER_NO_GELI_SUPPORT) 95MK_LOADER_GELI=no 96.warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI" 97.endif 98.if defined(LOADER_GELI_SUPPORT) 99MK_LOADER_GELI=yes 100.warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI" 101.endif 102.if ${MK_LOADER_GELI} == "yes" 103CFLAGS+= -DLOADER_GELI_SUPPORT 104CFLAGS+= -I${SASRC}/geli 105.endif # MK_LOADER_GELI 106 107# These should be confined to loader.mk, but can't because uboot/lib 108# also uses it. It's part of loader, but isn't a loader so we can't 109# just include loader.mk 110.if ${LOADER_DISK_SUPPORT:Uyes} == "yes" 111CFLAGS+= -DLOADER_DISK_SUPPORT 112.endif 113 114# Machine specific flags for all builds here 115 116# Ensure PowerPC64 and PowerPC64LE boot loaders are compiled as 32 bit 117# and in big endian. 118.if ${MACHINE_ARCH:Mpowerpc64*} != "" 119CFLAGS+= -m32 -mcpu=powerpc -mbig-endian 120.endif 121 122# For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is 123# build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here 124# and activate it when DO32 is explicitly defined to be 1. 125.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 126CFLAGS+= -m32 127# LD_FLAGS is passed directly to ${LD}, not via ${CC}: 128LD_FLAGS+= -m elf_i386_fbsd 129AFLAGS+= --32 130.endif 131 132SSP_CFLAGS= 133 134# Add in the no float / no SIMD stuff and announce we're freestanding 135# aarch64 and riscv don't have -msoft-float, but all others do. 136CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD} 137.if ${MACHINE_CPUARCH} == "aarch64" 138CFLAGS+= -mgeneral-regs-only -ffixed-x18 -fPIC 139.elif ${MACHINE_CPUARCH} == "riscv" 140CFLAGS+= -march=rv64imac -mabi=lp64 -fPIC 141CFLAGS.clang+= -mcmodel=medium 142CFLAGS.gcc+= -mcmodel=medany 143.else 144CFLAGS+= -msoft-float 145.endif 146 147# -msoft-float seems to be insufficient for powerpcspe 148.if ${MACHINE_ARCH} == "powerpcspe" 149CFLAGS+= -mno-spe 150.endif 151 152.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1) 153CFLAGS+= -march=i386 154CFLAGS.gcc+= -mpreferred-stack-boundary=2 155.endif 156.if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0 157CFLAGS+= -fPIC -mno-red-zone 158.endif 159 160.if ${MACHINE_CPUARCH} == "arm" 161# Do not generate movt/movw, because the relocation fixup for them does not 162# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8). 163# Also, the fpu is not available in a standalone environment. 164CFLAGS.clang+= -mno-movt 165CFLAGS.clang+= -mfpu=none 166CFLAGS+= -fPIC 167.endif 168 169# Some RISC-V linkers have support for relaxations, while some (lld) do not 170# yet. If this is the case we inhibit the compiler from emitting relaxations. 171.if ${LINKER_FEATURES:Mriscv-relaxations} == "" 172CFLAGS+= -mno-relax 173.endif 174 175# The boot loader build uses dd status=none, where possible, for reproducible 176# build output (since performance varies from run to run). Trouble is that 177# option was recently (10.3) added to FreeBSD and is non-standard. Only use it 178# when this test succeeds rather than require dd to be a bootstrap tool. 179DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true 180DD=dd ${DD_NOSTATUS} 181 182.if ${MACHINE_CPUARCH} == "mips" 183CFLAGS+= -G0 -fno-pic -mno-abicalls 184.endif 185 186# 187# Have a sensible default 188# 189.if ${MK_LOADER_LUA} == "yes" 190LOADER_DEFAULT_INTERP?=lua 191.elif ${MK_FORTH} == "yes" 192LOADER_DEFAULT_INTERP?=4th 193.else 194LOADER_DEFAULT_INTERP?=simp 195.endif 196LOADER_INTERP?=${LOADER_DEFAULT_INTERP} 197 198# Make sure we use the machine link we're about to create 199CFLAGS+=-I. 200 201all: ${PROG} 202 203CLEANFILES+= teken_state.h 204teken.c: teken_state.h 205 206teken_state.h: ${SYSDIR}/teken/sequences 207 awk -f ${SYSDIR}/teken/gensequences \ 208 ${SYSDIR}/teken/sequences > teken_state.h 209 210.if !defined(NO_OBJ) 211_ILINKS=include/machine 212.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 213_ILINKS+=include/${MACHINE_CPUARCH} 214.endif 215.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 216_ILINKS+=include/x86 217.endif 218CFLAGS+= -Iinclude 219CLEANDIRS+= include 220 221beforedepend: ${_ILINKS} 222beforebuild: ${_ILINKS} 223 224# Ensure that the links exist without depending on it when it exists which 225# causes all the modules to be rebuilt when the directory pointed to changes. 226.for _link in ${_ILINKS} 227.if !exists(${.OBJDIR}/${_link}) 228${OBJS}: ${_link} 229.endif # _link exists 230.endfor 231 232.NOPATH: ${_ILINKS} 233 234${_ILINKS}: .NOMETA 235 @case ${.TARGET:T} in \ 236 machine) \ 237 if [ ${DO32:U0} -eq 0 ]; then \ 238 path=${SYSDIR}/${MACHINE}/include ; \ 239 else \ 240 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \ 241 fi ;; \ 242 *) \ 243 path=${SYSDIR}/${.TARGET:T}/include ;; \ 244 esac ; \ 245 case ${.TARGET} in \ 246 */*) mkdir -p ${.TARGET:H};; \ 247 esac ; \ 248 path=`(cd $$path && /bin/pwd)` ; \ 249 ${ECHO} ${.TARGET} "->" $$path ; \ 250 ln -fns $$path ${.TARGET} 251.endif # !NO_OBJ 252.endif # __BOOT_DEFS_MK__ 253