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 13MK_PIE= no 14MAN= 15.if !defined(PIC) 16NO_PIC= 17INTERNALLIB= 18.endif 19# Should be NO_CPU_FLAGS, but bsd.cpu.mk is included too early in bsd.init.mk 20# via the early include of bsd.opts.mk. Moving Makefile.inc include earlier in 21# that file causes weirdness, so this is the next best thing. We need to do this 22# because the loader needs very specific flags to work right, and things like 23# CPUTYPE?=native prevent that, and introduce an endless game of whack-a-mole 24# to disable more and more features. Boot loader performance is never improved 25# enough to make that hassle worth chasing. 26_CPUCFLAGS= 27 28.if ${LDFLAGS:M-nostdlib} 29# Sanitizers won't work unless we link against libc (e.g. in userboot/test). 30MK_ASAN:= no 31MK_UBSAN:= no 32.endif 33 34.include <src.opts.mk> 35.include <bsd.linker.mk> 36 37WARNS?= 1 38 39BOOTSRC= ${SRCTOP}/stand 40EFISRC= ${BOOTSRC}/efi 41EFIINC= ${EFISRC}/include 42EFIINCMD= ${EFIINC}/${MACHINE} 43FDTSRC= ${BOOTSRC}/fdt 44FICLSRC= ${BOOTSRC}/ficl 45LDRSRC= ${BOOTSRC}/common 46LIBLUASRC= ${BOOTSRC}/liblua 47LIBOFWSRC= ${BOOTSRC}/libofw 48LUASRC= ${SRCTOP}/contrib/lua/src 49SASRC= ${BOOTSRC}/libsa 50SYSDIR= ${SRCTOP}/sys 51UBOOTSRC= ${BOOTSRC}/uboot 52ZFSSRC= ${SASRC}/zfs 53OZFS= ${SRCTOP}/sys/contrib/openzfs 54ZFSOSSRC= ${OZFS}/module/os/freebsd/ 55ZFSOSINC= ${OZFS}/include/os/freebsd 56LIBCSRC= ${SRCTOP}/lib/libc 57 58BOOTOBJ= ${OBJTOP}/stand 59 60# BINDIR is where we install 61BINDIR?= /boot 62 63# LUAPATH is where we search for and install lua scripts. 64LUAPATH?= /boot/lua 65FLUASRC?= ${SRCTOP}/libexec/flua 66 67LIBSA= ${BOOTOBJ}/libsa/libsa.a 68.if ${MACHINE} == "i386" 69LIBSA32= ${LIBSA} 70.else 71LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a 72.endif 73 74# Standard options: 75CFLAGS+= -nostdinc 76# Allow CFLAGS_EARLY.file/target so that code that needs specific stack 77# of include paths can set them up before our include paths. Normally 78# the only thing that should be there are -I directives, and as few of 79# those as possible. 80CFLAGS+= ${CFLAGS_EARLY} ${CFLAGS_EARLY.${.IMPSRC:T}} ${CFLAGS_EARLY.${.TARGET:T}} 81.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 82CFLAGS+= -I${BOOTOBJ}/libsa32 83.else 84CFLAGS+= -I${BOOTOBJ}/libsa 85.endif 86CFLAGS+= -I${SASRC} -D_STANDALONE 87CFLAGS+= -I${SYSDIR} 88# Spike the floating point interfaces 89CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface 90.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64" 91# Slim down the image. This saves about 15% in size with clang 6 on x86 92# Our most constrained /boot/loader env is BIOS booting on x86, where 93# our text + data + BTX have to fit into 640k below the ISA hole. 94# Experience has shown that problems arise between ~520k to ~530k. 95CFLAGS.clang+= -Oz 96CFLAGS.gcc+= -Os 97CFLAGS+= -ffunction-sections -fdata-sections 98.endif 99 100# GELI Support, with backward compat hooks (mostly) 101.if defined(LOADER_NO_GELI_SUPPORT) 102MK_LOADER_GELI=no 103.warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI" 104.endif 105.if defined(LOADER_GELI_SUPPORT) 106MK_LOADER_GELI=yes 107.warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI" 108.endif 109.if ${MK_LOADER_GELI} == "yes" 110CFLAGS+= -DLOADER_GELI_SUPPORT 111CFLAGS+= -I${SASRC}/geli 112.endif # MK_LOADER_GELI 113 114# These should be confined to loader.mk, but can't because uboot/lib 115# also uses it. It's part of loader, but isn't a loader so we can't 116# just include loader.mk 117.if ${LOADER_DISK_SUPPORT:Uyes} == "yes" 118CFLAGS+= -DLOADER_DISK_SUPPORT 119.endif 120 121# Machine specific flags for all builds here 122 123# Ensure PowerPC64 and PowerPC64LE boot loaders are compiled as 32 bit. 124# PowerPC64LE boot loaders are 32-bit little-endian. 125.if ${MACHINE_ARCH} == "powerpc64" 126CFLAGS+= -m32 -mcpu=powerpc -mbig-endian 127.elif ${MACHINE_ARCH} == "powerpc64le" 128CFLAGS+= -m32 -mcpu=powerpc -mlittle-endian 129.endif 130 131# For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is 132# build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here 133# and activate it when DO32 is explicitly defined to be 1. 134.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 135CFLAGS+= -m32 136# LD_FLAGS is passed directly to ${LD}, not via ${CC}: 137LD_FLAGS+= -m elf_i386_fbsd 138AFLAGS+= --32 139.endif 140 141# Add in the no float / no SIMD stuff and announce we're freestanding 142# aarch64 and riscv don't have -msoft-float, but all others do. 143CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD} 144.if ${MACHINE_CPUARCH} == "aarch64" 145CFLAGS+= -mgeneral-regs-only -ffixed-x18 -fPIC 146.elif ${MACHINE_CPUARCH} == "riscv" 147CFLAGS+= -march=rv64imac -mabi=lp64 -fPIC 148CFLAGS.clang+= -mcmodel=medium 149CFLAGS.gcc+= -mcmodel=medany 150.else 151CFLAGS+= -msoft-float 152.endif 153 154# -msoft-float seems to be insufficient for powerpcspe 155.if ${MACHINE_ARCH} == "powerpcspe" 156CFLAGS+= -mno-spe 157.endif 158 159.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1) 160CFLAGS+= -march=i386 161CFLAGS.gcc+= -mpreferred-stack-boundary=2 162.endif 163.if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0 164CFLAGS+= -fPIC -mno-red-zone 165.endif 166 167.if ${MACHINE_CPUARCH} == "arm" 168# Do not generate movt/movw, because the relocation fixup for them does not 169# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8). 170# Also, the fpu is not available in a standalone environment. 171CFLAGS.clang+= -mno-movt 172CFLAGS.clang+= -mfpu=none 173CFLAGS+= -fPIC 174.endif 175 176# Some RISC-V linkers have support for relaxations, while some (lld) do not 177# yet. If this is the case we inhibit the compiler from emitting relaxations. 178.if ${LINKER_FEATURES:Mriscv-relaxations} == "" 179CFLAGS+= -mno-relax 180.endif 181 182# The boot loader build uses dd status=none, where possible, for reproducible 183# build output (since performance varies from run to run). Trouble is that 184# option was recently (10.3) added to FreeBSD and is non-standard. Only use it 185# when this test succeeds rather than require dd to be a bootstrap tool. 186DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true 187DD=dd ${DD_NOSTATUS} 188 189# 190# Have a sensible default 191# 192.if ${MK_LOADER_LUA} == "yes" 193LOADER_DEFAULT_INTERP?=lua 194.elif ${MK_FORTH} == "yes" 195LOADER_DEFAULT_INTERP?=4th 196.else 197LOADER_DEFAULT_INTERP?=simp 198.endif 199LOADER_INTERP?=${LOADER_DEFAULT_INTERP} 200 201# Make sure we use the machine link we're about to create 202CFLAGS+=-I. 203 204all: ${PROG} 205 206CLEANFILES+= teken_state.h 207teken.c: teken_state.h 208 209teken_state.h: ${SYSDIR}/teken/sequences 210 awk -f ${SYSDIR}/teken/gensequences \ 211 ${SYSDIR}/teken/sequences > teken_state.h 212 213.if !defined(NO_OBJ) 214_ILINKS=include/machine 215.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 216_ILINKS+=include/${MACHINE_CPUARCH} 217.endif 218.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 219_ILINKS+=include/x86 220.endif 221CFLAGS+= -Iinclude 222CLEANDIRS+= include 223 224beforedepend: ${_ILINKS} 225beforebuild: ${_ILINKS} 226 227# Ensure that the links exist without depending on it when it exists which 228# causes all the modules to be rebuilt when the directory pointed to changes. 229.for _link in ${_ILINKS} 230.if !exists(${.OBJDIR}/${_link}) 231${OBJS}: ${_link} 232.endif # _link exists 233.endfor 234 235.NOPATH: ${_ILINKS} 236 237${_ILINKS}: .NOMETA 238 @case ${.TARGET:T} in \ 239 machine) \ 240 if [ ${DO32:U0} -eq 0 ]; then \ 241 path=${SYSDIR}/${MACHINE}/include ; \ 242 else \ 243 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \ 244 fi ;; \ 245 *) \ 246 path=${SYSDIR}/${.TARGET:T}/include ;; \ 247 esac ; \ 248 case ${.TARGET} in \ 249 */*) mkdir -p ${.TARGET:H};; \ 250 esac ; \ 251 path=`(cd $$path && /bin/pwd)` ; \ 252 ${ECHO} ${.TARGET} "->" $$path ; \ 253 ln -fns $$path ${.TARGET} 254.endif # !NO_OBJ 255.endif # __BOOT_DEFS_MK__ 256