1# $FreeBSD$ 2 3.include <src.opts.mk> 4 5WARNS?=1 6 7.if !defined(__BOOT_DEFS_MK__) 8__BOOT_DEFS_MK__=${MFILE} 9 10MK_CTF= no 11MK_SSP= no 12MK_PROFILE= no 13MAN= 14.if !defined(PIC) 15NO_PIC= 16INTERNALLIB= 17.endif 18 19BOOTSRC= ${SRCTOP}/stand 20EFISRC= ${BOOTSRC}/efi 21EFIINC= ${EFISRC}/include 22EFIINCMD= ${EFIINC}/${MACHINE} 23FDTSRC= ${BOOTSRC}/fdt 24FICLSRC= ${BOOTSRC}/ficl 25LDRSRC= ${BOOTSRC}/common 26LIBLUASRC= ${BOOTSRC}/liblua 27LUASRC= ${SRCTOP}/contrib/lua/src 28SASRC= ${BOOTSRC}/libsa 29SYSDIR= ${SRCTOP}/sys 30UBOOTSRC= ${BOOTSRC}/uboot 31ZFSSRC= ${SASRC}/zfs 32 33BOOTOBJ= ${OBJTOP}/stand 34 35# BINDIR is where we install 36BINDIR?= /boot 37 38LIBSA= ${BOOTOBJ}/libsa/libsa.a 39.if ${MACHINE} == "i386" 40LIBSA32= ${LIBSA} 41.else 42LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a 43.endif 44 45# Standard options: 46CFLAGS+= -nostdinc 47.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 48CFLAGS+= -I${BOOTOBJ}/libsa32 49.else 50CFLAGS+= -I${BOOTOBJ}/libsa 51.endif 52CFLAGS+= -I${SASRC} -D_STANDALONE 53CFLAGS+= -I${SYSDIR} 54# Spike the floating point interfaces 55CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface 56.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64" 57# Slim down the image. This saves about 15% in size with clang 6 on x86 58# Our most constrained /boot/loader env is BIOS booting on x86, where 59# our text + data + BTX have to fit into 640k below the ISA hole. 60# Experience has shown that problems arise between ~520k to ~530k. 61CFLAGS.clang+= -Oz 62CFLAGS.gcc+= -Os 63.endif 64 65# GELI Support, with backward compat hooks (mostly) 66.if defined(LOADER_NO_GELI_SUPPORT) 67MK_LOADER_GELI=no 68.warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI" 69.endif 70.if defined(LOADER_GELI_SUPPORT) 71MK_LOADER_GELI=yes 72.warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI" 73.endif 74.if ${MK_LOADER_GELI} == "yes" 75CFLAGS+= -DLOADER_GELI_SUPPORT 76CFLAGS+= -I${SASRC}/geli 77.endif # MK_LOADER_GELI 78 79# These should be confined to loader.mk, but can't because uboot/lib 80# also uses it. It's part of loader, but isn't a loader so we can't 81# just include loader.mk 82.if ${LOADER_DISK_SUPPORT:Uyes} == "yes" 83CFLAGS+= -DLOADER_DISK_SUPPORT 84.endif 85 86# Machine specific flags for all builds here 87 88# All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc 89# or powerpc64. 90.if ${MACHINE_ARCH} == "powerpc64" 91CFLAGS+= -m32 -mcpu=powerpc 92.endif 93 94# For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is 95# build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here 96# and activate it when DO32 is explicitly defined to be 1. 97.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 98CFLAGS+= -m32 99# LD_FLAGS is passed directly to ${LD}, not via ${CC}: 100LD_FLAGS+= -m elf_i386_fbsd 101AFLAGS+= --32 102.endif 103 104SSP_CFLAGS= 105 106# Add in the no float / no SIMD stuff and announce we're freestanding 107# aarch64 and riscv don't have -msoft-float, but all others do. riscv 108# currently has no /boot/loader, but may soon. 109CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD} 110.if ${MACHINE_CPUARCH} == "aarch64" 111CFLAGS+= -mgeneral-regs-only -fPIC 112.elif ${MACHINE_CPUARCH} == "riscv" 113CFLAGS+= -march=rv64imac -mabi=lp64 114.else 115CFLAGS+= -msoft-float 116.endif 117 118# -msoft-float seems to be insufficient for powerpcspe 119.if ${MACHINE_ARCH} == "powerpcspe" 120CFLAGS+= -mno-spe 121.endif 122 123.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1) 124CFLAGS+= -march=i386 125CFLAGS.gcc+= -mpreferred-stack-boundary=2 126.endif 127.if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0 128CFLAGS+= -fPIC -mno-red-zone 129.endif 130 131.if ${MACHINE_CPUARCH} == "arm" 132# Do not generate movt/movw, because the relocation fixup for them does not 133# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8). 134# Also, the fpu is not available in a standalone environment. 135.if ${COMPILER_VERSION} < 30800 136CFLAGS.clang+= -mllvm -arm-use-movt=0 137.else 138CFLAGS.clang+= -mno-movt 139.endif 140CFLAGS.clang+= -mfpu=none 141CFLAGS+= -fPIC 142.endif 143 144# The boot loader build uses dd status=none, where possible, for reproducible 145# build output (since performance varies from run to run). Trouble is that 146# option was recently (10.3) added to FreeBSD and is non-standard. Only use it 147# when this test succeeds rather than require dd to be a bootstrap tool. 148DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true 149DD=dd ${DD_NOSTATUS} 150 151.if ${MACHINE_CPUARCH} == "mips" 152CFLAGS+= -G0 -fno-pic -mno-abicalls 153.endif 154 155.if ${MK_LOADER_FORCE_LE} != "no" 156.if ${MACHINE_ARCH} == "powerpc64" 157CFLAGS+= -mlittle-endian 158.endif 159.endif 160 161# 162# Have a sensible default 163# 164.if ${MK_LOADER_LUA} == "yes" 165LOADER_DEFAULT_INTERP?=lua 166.elif ${MK_FORTH} == "yes" 167LOADER_DEFAULT_INTERP?=4th 168.else 169LOADER_DEFAULT_INTERP?=simp 170.endif 171LOADER_INTERP?=${LOADER_DEFAULT_INTERP} 172 173# Make sure we use the machine link we're about to create 174CFLAGS+=-I. 175 176all: ${PROG} 177 178.if !defined(NO_OBJ) 179_ILINKS=machine 180.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 181_ILINKS+=${MACHINE_CPUARCH} 182.endif 183.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 184_ILINKS+=x86 185.endif 186CLEANFILES+=${_ILINKS} 187 188beforedepend: ${_ILINKS} 189beforebuild: ${_ILINKS} 190 191# Ensure that the links exist without depending on it when it exists which 192# causes all the modules to be rebuilt when the directory pointed to changes. 193.for _link in ${_ILINKS} 194.if !exists(${.OBJDIR}/${_link}) 195${OBJS}: ${_link} 196.endif # _link exists 197.endfor 198 199.NOPATH: ${_ILINKS} 200 201${_ILINKS}: 202 @case ${.TARGET} in \ 203 machine) \ 204 if [ ${DO32:U0} -eq 0 ]; then \ 205 path=${SYSDIR}/${MACHINE}/include ; \ 206 else \ 207 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \ 208 fi ;; \ 209 *) \ 210 path=${SYSDIR}/${.TARGET:T}/include ;; \ 211 esac ; \ 212 path=`(cd $$path && /bin/pwd)` ; \ 213 ${ECHO} ${.TARGET:T} "->" $$path ; \ 214 ln -fhs $$path ${.TARGET:T} 215.endif # !NO_OBJ 216.endif # __BOOT_DEFS_MK__ 217