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# Slim down the image. This saves about 15% in size with clang 6 on x86 57# Our most constrained /boot/loader env is BIOS booting on x86, where 58# our text + data + BTX have to fit into 640k below the ISA hole. 59# Experience has shown that problems arise between ~520k to ~530k. 60CFLAGS.clang+= -Oz 61CFLAGS.gcc+= -Os 62 63# GELI Support, with backward compat hooks (mostly) 64.if defined(LOADER_NO_GELI_SUPPORT) 65MK_LOADER_GELI=no 66.warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI" 67.endif 68.if defined(LOADER_GELI_SUPPORT) 69MK_LOADER_GELI=yes 70.warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI" 71.endif 72.if ${MK_LOADER_GELI} == "yes" 73CFLAGS+= -DLOADER_GELI_SUPPORT 74CFLAGS+= -I${SASRC}/geli 75.endif # MK_LOADER_GELI 76 77# These should be confined to loader.mk, but can't because uboot/lib 78# also uses it. It's part of loader, but isn't a loader so we can't 79# just include loader.mk 80.if ${LOADER_DISK_SUPPORT:Uyes} == "yes" 81CFLAGS+= -DLOADER_DISK_SUPPORT 82.endif 83 84# Machine specific flags for all builds here 85 86# All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc 87# or powerpc64. 88.if ${MACHINE_ARCH} == "powerpc64" 89CFLAGS+= -m32 -mcpu=powerpc 90.endif 91 92# For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is 93# build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here 94# and activate it when DO32 is explicitly defined to be 1. 95.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1 96CFLAGS+= -m32 97# LD_FLAGS is passed directly to ${LD}, not via ${CC}: 98LD_FLAGS+= -m elf_i386_fbsd 99AFLAGS+= --32 100.endif 101 102SSP_CFLAGS= 103 104# Add in the no float / no SIMD stuff and announce we're freestanding 105# aarch64 and riscv don't have -msoft-float, but all others do. riscv 106# currently has no /boot/loader, but may soon. 107CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD} 108.if ${MACHINE_CPUARCH} == "aarch64" 109CFLAGS+= -mgeneral-regs-only -fPIC 110.elif ${MACHINE_CPUARCH} == "riscv" 111CFLAGS+= -march=rv64ima -mabi=lp64 112.else 113CFLAGS+= -msoft-float 114.endif 115 116.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1) 117CFLAGS+= -march=i386 118CFLAGS.gcc+= -mpreferred-stack-boundary=2 119.endif 120.if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0 121CFLAGS+= -fPIC -mno-red-zone 122.endif 123 124.if ${MACHINE_CPUARCH} == "arm" 125# Do not generate movt/movw, because the relocation fixup for them does not 126# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8). 127# Also, the fpu is not available in a standalone environment. 128.if ${COMPILER_VERSION} < 30800 129CFLAGS.clang+= -mllvm -arm-use-movt=0 130.else 131CFLAGS.clang+= -mno-movt 132.endif 133CFLAGS.clang+= -mfpu=none 134CFLAGS+= -fPIC 135.endif 136 137# The boot loader build uses dd status=none, where possible, for reproducible 138# build output (since performance varies from run to run). Trouble is that 139# option was recently (10.3) added to FreeBSD and is non-standard. Only use it 140# when this test succeeds rather than require dd to be a bootstrap tool. 141DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true 142DD=dd ${DD_NOSTATUS} 143 144.if ${MACHINE_CPUARCH} == "mips" 145CFLAGS+= -G0 -fno-pic -mno-abicalls 146.endif 147 148.if ${MK_LOADER_FORCE_LE} != "no" 149.if ${MACHINE_ARCH} == "powerpc64" 150CFLAGS+= -mlittle-endian 151.endif 152.endif 153 154# 155# Have a sensible default 156# 157.if ${MK_LOADER_LUA} == "yes" 158LOADER_DEFAULT_INTERP?=lua 159.elif ${MK_FORTH} == "yes" 160LOADER_DEFAULT_INTERP?=4th 161.else 162LOADER_DEFAULT_INTERP?=simp 163.endif 164LOADER_INTERP?=${LOADER_DEFAULT_INTERP} 165 166# Make sure we use the machine link we're about to create 167CFLAGS+=-I. 168 169all: ${PROG} 170 171.if !defined(NO_OBJ) 172_ILINKS=machine 173.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64" 174_ILINKS+=${MACHINE_CPUARCH} 175.endif 176.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" 177_ILINKS+=x86 178.endif 179CLEANFILES+=${_ILINKS} 180 181beforedepend: ${_ILINKS} 182beforebuild: ${_ILINKS} 183 184# Ensure that the links exist without depending on it when it exists which 185# causes all the modules to be rebuilt when the directory pointed to changes. 186.for _link in ${_ILINKS} 187.if !exists(${.OBJDIR}/${_link}) 188${OBJS}: ${_link} 189.endif # _link exists 190.endfor 191 192.NOPATH: ${_ILINKS} 193 194${_ILINKS}: 195 @case ${.TARGET} in \ 196 machine) \ 197 if [ ${DO32:U0} -eq 0 ]; then \ 198 path=${SYSDIR}/${MACHINE}/include ; \ 199 else \ 200 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \ 201 fi ;; \ 202 *) \ 203 path=${SYSDIR}/${.TARGET:T}/include ;; \ 204 esac ; \ 205 path=`(cd $$path && /bin/pwd)` ; \ 206 ${ECHO} ${.TARGET:T} "->" $$path ; \ 207 ln -fhs $$path ${.TARGET:T} 208.endif # !NO_OBJ 209.endif # __BOOT_DEFS_MK__ 210