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,
18 # Should be NO_CPU_FLAGS, but bsd.cpu.mk is included too early in bsd.init.mk
19 # via the early include of bsd.opts.mk. Moving Makefile.inc include earlier in
20 # that file causes weirdness, so this is the next best thing. We need to do this
21 # because the loader needs very specific flags to work right, and things like
22 # CPUTYPE?=native prevent that, and introduce an endless game of whack-a-mole
23 # to disable more and more features. Boot loader performance is never improved
24 # enough to make that hassle worth chasing.
27 .if ${LDFLAGS:M-nostdlib}
28 # Sanitizers won't work unless we link against libc (e.g. in userboot/test).
33 .include <src.opts.mk>
34 .include <bsd.linker.mk>
38 BOOTSRC= ${SRCTOP}/stand
39 EFISRC= ${BOOTSRC}/efi
40 EFIINC= ${EFISRC}/include
41 EFIINCMD= ${EFIINC}/${MACHINE}
42 FDTSRC= ${BOOTSRC}/fdt
43 FICLSRC= ${BOOTSRC}/ficl
44 LDRSRC= ${BOOTSRC}/common
45 LIBLUASRC= ${BOOTSRC}/liblua
46 LIBOFWSRC= ${BOOTSRC}/libofw
47 LUASRC= ${SRCTOP}/contrib/lua/src
48 SASRC= ${BOOTSRC}/libsa
50 UBOOTSRC= ${BOOTSRC}/uboot
52 OZFS= ${SRCTOP}/sys/contrib/openzfs
53 ZFSOSSRC= ${OZFS}/module/os/freebsd/
54 ZFSOSINC= ${OZFS}/include/os/freebsd
55 LIBCSRC= ${SRCTOP}/lib/libc
57 BOOTOBJ= ${OBJTOP}/stand
59 # BINDIR is where we install
62 # LUAPATH is where we search for and install lua scripts.
64 FLUASRC?= ${SRCTOP}/libexec/flua
66 LIBSA= ${BOOTOBJ}/libsa/libsa.a
67 .if ${MACHINE} == "i386"
70 LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a
75 # Allow CFLAGS_EARLY.file/target so that code that needs specific stack
76 # of include paths can set them up before our include paths. Normally
77 # the only thing that should be there are -I directives, and as few of
79 CFLAGS+= ${CFLAGS_EARLY} ${CFLAGS_EARLY.${.IMPSRC:T}} ${CFLAGS_EARLY.${.TARGET:T}}
80 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
81 CFLAGS+= -I${BOOTOBJ}/libsa32
83 CFLAGS+= -I${BOOTOBJ}/libsa
85 CFLAGS+= -I${SASRC} -D_STANDALONE
87 # Spike the floating point interfaces
88 CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
89 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
90 # Slim down the image. This saves about 15% in size with clang 6 on x86
91 # Our most constrained /boot/loader env is BIOS booting on x86, where
92 # our text + data + BTX have to fit into 640k below the ISA hole.
93 # Experience has shown that problems arise between ~520k to ~530k.
96 CFLAGS+= -ffunction-sections -fdata-sections
99 # GELI Support, with backward compat hooks (mostly)
100 .if defined(LOADER_NO_GELI_SUPPORT)
102 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
104 .if defined(LOADER_GELI_SUPPORT)
106 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
108 .if ${MK_LOADER_GELI} == "yes"
109 CFLAGS+= -DLOADER_GELI_SUPPORT
110 CFLAGS+= -I${SASRC}/geli
111 .endif # MK_LOADER_GELI
113 # These should be confined to loader.mk, but can't because uboot/lib
114 # also uses it. It's part of loader, but isn't a loader so we can't
115 # just include loader.mk
116 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
117 CFLAGS+= -DLOADER_DISK_SUPPORT
120 # Machine specific flags for all builds here
122 # Ensure PowerPC64 and PowerPC64LE boot loaders are compiled as 32 bit
124 .if ${MACHINE_ARCH:Mpowerpc64*} != ""
125 CFLAGS+= -m32 -mcpu=powerpc -mbig-endian
128 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
129 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
130 # and activate it when DO32 is explicitly defined to be 1.
131 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
133 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
134 LD_FLAGS+= -m elf_i386_fbsd
140 # Add in the no float / no SIMD stuff and announce we're freestanding
141 # aarch64 and riscv don't have -msoft-float, but all others do.
142 CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD}
143 .if ${MACHINE_CPUARCH} == "aarch64"
144 CFLAGS+= -mgeneral-regs-only -ffixed-x18 -fPIC
145 .elif ${MACHINE_CPUARCH} == "riscv"
146 CFLAGS+= -march=rv64imac -mabi=lp64 -fPIC
147 CFLAGS.clang+= -mcmodel=medium
148 CFLAGS.gcc+= -mcmodel=medany
150 CFLAGS+= -msoft-float
153 # -msoft-float seems to be insufficient for powerpcspe
154 .if ${MACHINE_ARCH} == "powerpcspe"
158 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
160 CFLAGS.gcc+= -mpreferred-stack-boundary=2
162 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
163 CFLAGS+= -fPIC -mno-red-zone
166 .if ${MACHINE_CPUARCH} == "arm"
167 # Do not generate movt/movw, because the relocation fixup for them does not
168 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
169 # Also, the fpu is not available in a standalone environment.
170 CFLAGS.clang+= -mno-movt
171 CFLAGS.clang+= -mfpu=none
175 # Some RISC-V linkers have support for relaxations, while some (lld) do not
176 # yet. If this is the case we inhibit the compiler from emitting relaxations.
177 .if ${LINKER_FEATURES:Mriscv-relaxations} == ""
181 # The boot loader build uses dd status=none, where possible, for reproducible
182 # build output (since performance varies from run to run). Trouble is that
183 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
184 # when this test succeeds rather than require dd to be a bootstrap tool.
185 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
188 .if ${MACHINE_CPUARCH} == "mips"
189 CFLAGS+= -G0 -fno-pic -mno-abicalls
193 # Have a sensible default
195 .if ${MK_LOADER_LUA} == "yes"
196 LOADER_DEFAULT_INTERP?=lua
197 .elif ${MK_FORTH} == "yes"
198 LOADER_DEFAULT_INTERP?=4th
200 LOADER_DEFAULT_INTERP?=simp
202 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
204 # Make sure we use the machine link we're about to create
209 CLEANFILES+= teken_state.h
210 teken.c: teken_state.h
212 teken_state.h: ${SYSDIR}/teken/sequences
213 awk -f ${SYSDIR}/teken/gensequences \
214 ${SYSDIR}/teken/sequences > teken_state.h
217 _ILINKS=include/machine
218 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
219 _ILINKS+=include/${MACHINE_CPUARCH}
221 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
227 beforedepend: ${_ILINKS}
228 beforebuild: ${_ILINKS}
230 # Ensure that the links exist without depending on it when it exists which
231 # causes all the modules to be rebuilt when the directory pointed to changes.
232 .for _link in ${_ILINKS}
233 .if !exists(${.OBJDIR}/${_link})
235 .endif # _link exists
241 @case ${.TARGET:T} in \
243 if [ ${DO32:U0} -eq 0 ]; then \
244 path=${SYSDIR}/${MACHINE}/include ; \
246 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
249 path=${SYSDIR}/${.TARGET:T}/include ;; \
252 */*) mkdir -p ${.TARGET:H};; \
254 path=`(cd $$path && /bin/pwd)` ; \
255 ${ECHO} ${.TARGET} "->" $$path ; \
256 ln -fns $$path ${.TARGET}
258 .endif # __BOOT_DEFS_MK__