3 .if !defined(__BOOT_DEFS_MK__)
4 __BOOT_DEFS_MK__=${MFILE}
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,
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.
28 .if ${LDFLAGS:M-nostdlib}
29 # Sanitizers won't work unless we link against libc (e.g. in userboot/test).
34 .include <src.opts.mk>
35 .include <bsd.linker.mk>
39 BOOTSRC= ${SRCTOP}/stand
40 EFISRC= ${BOOTSRC}/efi
41 EFIINC= ${EFISRC}/include
42 EFIINCMD= ${EFIINC}/${MACHINE}
43 FDTSRC= ${BOOTSRC}/fdt
44 FICLSRC= ${BOOTSRC}/ficl
45 LDRSRC= ${BOOTSRC}/common
46 LIBLUASRC= ${BOOTSRC}/liblua
47 LIBOFWSRC= ${BOOTSRC}/libofw
48 LUASRC= ${SRCTOP}/contrib/lua/src
49 SASRC= ${BOOTSRC}/libsa
51 UBOOTSRC= ${BOOTSRC}/uboot
53 OZFS= ${SRCTOP}/sys/contrib/openzfs
54 ZFSOSSRC= ${OZFS}/module/os/freebsd/
55 ZFSOSINC= ${OZFS}/include/os/freebsd
56 LIBCSRC= ${SRCTOP}/lib/libc
58 BOOTOBJ= ${OBJTOP}/stand
60 # BINDIR is where we install
63 # LUAPATH is where we search for and install lua scripts.
65 FLUASRC?= ${SRCTOP}/libexec/flua
67 LIBSA= ${BOOTOBJ}/libsa/libsa.a
68 .if ${MACHINE} == "i386"
71 LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a
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
80 CFLAGS+= ${CFLAGS_EARLY} ${CFLAGS_EARLY.${.IMPSRC:T}} ${CFLAGS_EARLY.${.TARGET:T}}
81 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
82 CFLAGS+= -I${BOOTOBJ}/libsa32
84 CFLAGS+= -I${BOOTOBJ}/libsa
86 CFLAGS+= -I${SASRC} -D_STANDALONE
88 # Spike the floating point interfaces
89 CFLAGS+= -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.
97 CFLAGS+= -ffunction-sections -fdata-sections
100 # GELI Support, with backward compat hooks (mostly)
101 .if defined(LOADER_NO_GELI_SUPPORT)
103 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
105 .if defined(LOADER_GELI_SUPPORT)
107 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
109 .if ${MK_LOADER_GELI} == "yes"
110 CFLAGS+= -DLOADER_GELI_SUPPORT
111 CFLAGS+= -I${SASRC}/geli
112 .endif # MK_LOADER_GELI
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"
118 CFLAGS+= -DLOADER_DISK_SUPPORT
121 # Machine specific flags for all builds here
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"
126 CFLAGS+= -m32 -mcpu=powerpc -mbig-endian
127 .elif ${MACHINE_ARCH} == "powerpc64le"
128 CFLAGS+= -m32 -mcpu=powerpc -mlittle-endian
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
136 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
137 LD_FLAGS+= -m elf_i386_fbsd
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.
143 CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD}
144 .if ${MACHINE_CPUARCH} == "aarch64"
145 CFLAGS+= -mgeneral-regs-only -ffixed-x18 -fPIC
146 .elif ${MACHINE_CPUARCH} == "riscv"
147 CFLAGS+= -march=rv64imac -mabi=lp64 -fPIC
148 CFLAGS.clang+= -mcmodel=medium
149 CFLAGS.gcc+= -mcmodel=medany
151 CFLAGS+= -msoft-float
154 # -msoft-float seems to be insufficient for powerpcspe
155 .if ${MACHINE_ARCH} == "powerpcspe"
159 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
161 CFLAGS.gcc+= -mpreferred-stack-boundary=2
163 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
164 CFLAGS+= -fPIC -mno-red-zone
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.
171 CFLAGS.clang+= -mno-movt
172 CFLAGS.clang+= -mfpu=none
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} == ""
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.
186 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
190 # Have a sensible default
192 .if ${MK_LOADER_LUA} == "yes"
193 LOADER_DEFAULT_INTERP?=lua
194 .elif ${MK_FORTH} == "yes"
195 LOADER_DEFAULT_INTERP?=4th
197 LOADER_DEFAULT_INTERP?=simp
199 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
201 # Make sure we use the machine link we're about to create
206 CLEANFILES+= teken_state.h
207 teken.c: teken_state.h
209 teken_state.h: ${SYSDIR}/teken/sequences
210 awk -f ${SYSDIR}/teken/gensequences \
211 ${SYSDIR}/teken/sequences > teken_state.h
214 _ILINKS=include/machine
215 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
216 _ILINKS+=include/${MACHINE_CPUARCH}
218 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
224 beforedepend: ${_ILINKS}
225 beforebuild: ${_ILINKS}
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})
232 .endif # _link exists
238 @case ${.TARGET:T} in \
240 if [ ${DO32:U0} -eq 0 ]; then \
241 path=${SYSDIR}/${MACHINE}/include ; \
243 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
246 path=${SYSDIR}/${.TARGET:T}/include ;; \
249 */*) mkdir -p ${.TARGET:H};; \
251 path=`(cd $$path && /bin/pwd)` ; \
252 ${ECHO} ${.TARGET} "->" $$path ; \
253 ln -fns $$path ${.TARGET}
255 .endif # __BOOT_DEFS_MK__