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 19.include <src.opts.mk> 20 21WARNS?= 1 22 23BOOTSRC= ${SRCTOP}/stand 24EFISRC= ${BOOTSRC}/efi 25EFIINC= ${EFISRC}/include 26EFIINCMD= ${EFIINC}/${MACHINE} 27FDTSRC= ${BOOTSRC}/fdt 28FICLSRC= ${BOOTSRC}/ficl 29LDRSRC= ${BOOTSRC}/common 30LIBLUASRC= ${BOOTSRC}/liblua 31LUASRC= ${SRCTOP}/contrib/lua/src 32SASRC= ${BOOTSRC}/libsa 33SYSDIR= ${SRCTOP}/sys 34UBOOTSRC= ${BOOTSRC}/uboot 35ZFSSRC= ${SASRC}/zfs 36 37BOOTOBJ= ${OBJTOP}/stand 38 39# BINDIR is where we install 40BINDIR?= /boot 41 42LIBSA= ${BOOTOBJ}/libsa/libsa.a 43.if ${MACHINE} == "i386" 44LIBSA32= ${LIBSA} 45.else 46LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a 47.endif 48 49# Standard options: 50CFLAGS+= -nostdinc 51.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 52CFLAGS+= -I${BOOTOBJ}/libsa32 53.else 54CFLAGS+= -I${BOOTOBJ}/libsa 55.endif 56CFLAGS+= -I${SASRC} -D_STANDALONE 57CFLAGS+= -I${SYSDIR} 58# Spike the floating point interfaces 59CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface 60.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64" 61# Slim down the image. This saves about 15% in size with clang 6 on x86 62# Our most constrained /boot/loader env is BIOS booting on x86, where 63# our text + data + BTX have to fit into 640k below the ISA hole. 64# Experience has shown that problems arise between ~520k to ~530k. 65CFLAGS.clang+= -Oz 66CFLAGS.gcc+= -Os 67.endif 68 69# GELI Support, with backward compat hooks (mostly) 70.if defined(LOADER_NO_GELI_SUPPORT) 71MK_LOADER_GELI=no 72.warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI" 73.endif 74.if defined(LOADER_GELI_SUPPORT) 75MK_LOADER_GELI=yes 76.warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI" 77.endif 78.if ${MK_LOADER_GELI} == "yes" 79CFLAGS+= -DLOADER_GELI_SUPPORT 80CFLAGS+= -I${SASRC}/geli 81.endif # MK_LOADER_GELI 82 83# These should be confined to loader.mk, but can't because uboot/lib 84# also uses it. It's part of loader, but isn't a loader so we can't 85# just include loader.mk 86.if ${LOADER_DISK_SUPPORT:Uyes} == "yes" 87CFLAGS+= -DLOADER_DISK_SUPPORT 88.endif 89 90# Machine specific flags for all builds here 91 92# All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc 93# or powerpc64. 94.if ${MACHINE_ARCH} == "powerpc64" 95CFLAGS+= -m32 -mcpu=powerpc 96.endif 97 98# For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is 99# build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here 100# and activate it when DO32 is explicitly defined to be 1. 101.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 102CFLAGS+= -m32 103# LD_FLAGS is passed directly to ${LD}, not via ${CC}: 104LD_FLAGS+= -m elf_i386_fbsd 105AFLAGS+= --32 106.endif 107 108SSP_CFLAGS= 109 110# Add in the no float / no SIMD stuff and announce we're freestanding 111# aarch64 and riscv don't have -msoft-float, but all others do. riscv 112# currently has no /boot/loader, but may soon. 113CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD} 114.if ${MACHINE_CPUARCH} == "aarch64" 115CFLAGS+= -mgeneral-regs-only -fPIC 116.elif ${MACHINE_CPUARCH} == "riscv" 117CFLAGS+= -march=rv64imac -mabi=lp64 118.else 119CFLAGS+= -msoft-float 120.endif 121 122# -msoft-float seems to be insufficient for powerpcspe 123.if ${MACHINE_ARCH} == "powerpcspe" 124CFLAGS+= -mno-spe 125.endif 126 127.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1) 128CFLAGS+= -march=i386 129CFLAGS.gcc+= -mpreferred-stack-boundary=2 130.endif 131.if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0 132CFLAGS+= -fPIC -mno-red-zone 133.endif 134 135.if ${MACHINE_CPUARCH} == "arm" 136# Do not generate movt/movw, because the relocation fixup for them does not 137# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8). 138# Also, the fpu is not available in a standalone environment. 139.if ${COMPILER_VERSION} < 30800 140CFLAGS.clang+= -mllvm -arm-use-movt=0 141.else 142CFLAGS.clang+= -mno-movt 143.endif 144CFLAGS.clang+= -mfpu=none 145CFLAGS+= -fPIC 146.endif 147 148# The boot loader build uses dd status=none, where possible, for reproducible 149# build output (since performance varies from run to run). Trouble is that 150# option was recently (10.3) added to FreeBSD and is non-standard. Only use it 151# when this test succeeds rather than require dd to be a bootstrap tool. 152DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true 153DD=dd ${DD_NOSTATUS} 154 155.if ${MACHINE_CPUARCH} == "mips" 156CFLAGS+= -G0 -fno-pic -mno-abicalls 157.endif 158 159.if ${MK_LOADER_FORCE_LE} != "no" 160.if ${MACHINE_ARCH} == "powerpc64" 161CFLAGS+= -mlittle-endian 162.endif 163.endif 164 165# 166# Have a sensible default 167# 168.if ${MK_LOADER_LUA} == "yes" 169LOADER_DEFAULT_INTERP?=lua 170.elif ${MK_FORTH} == "yes" 171LOADER_DEFAULT_INTERP?=4th 172.else 173LOADER_DEFAULT_INTERP?=simp 174.endif 175LOADER_INTERP?=${LOADER_DEFAULT_INTERP} 176 177# Make sure we use the machine link we're about to create 178CFLAGS+=-I. 179 180all: ${PROG} 181 182.if !defined(NO_OBJ) 183_ILINKS=machine 184.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 185_ILINKS+=${MACHINE_CPUARCH} 186.endif 187.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 188_ILINKS+=x86 189.endif 190CLEANFILES+=${_ILINKS} 191 192beforedepend: ${_ILINKS} 193beforebuild: ${_ILINKS} 194 195# Ensure that the links exist without depending on it when it exists which 196# causes all the modules to be rebuilt when the directory pointed to changes. 197.for _link in ${_ILINKS} 198.if !exists(${.OBJDIR}/${_link}) 199${OBJS}: ${_link} 200.endif # _link exists 201.endfor 202 203.NOPATH: ${_ILINKS} 204 205${_ILINKS}: 206 @case ${.TARGET} in \ 207 machine) \ 208 if [ ${DO32:U0} -eq 0 ]; then \ 209 path=${SYSDIR}/${MACHINE}/include ; \ 210 else \ 211 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \ 212 fi ;; \ 213 *) \ 214 path=${SYSDIR}/${.TARGET:T}/include ;; \ 215 esac ; \ 216 path=`(cd $$path && /bin/pwd)` ; \ 217 ${ECHO} ${.TARGET:T} "->" $$path ; \ 218 ln -fhs $$path ${.TARGET:T} 219.endif # !NO_OBJ 220.endif # __BOOT_DEFS_MK__ 221