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 .include <src.opts.mk>
31 BOOTSRC= ${SRCTOP}/stand
32 EFISRC= ${BOOTSRC}/efi
33 EFIINC= ${EFISRC}/include
34 EFIINCMD= ${EFIINC}/${MACHINE}
35 FDTSRC= ${BOOTSRC}/fdt
36 FICLSRC= ${BOOTSRC}/ficl
37 LDRSRC= ${BOOTSRC}/common
38 LIBLUASRC= ${BOOTSRC}/liblua
39 LIBOFWSRC= ${BOOTSRC}/libofw
40 LUASRC= ${SRCTOP}/contrib/lua/src
41 SASRC= ${BOOTSRC}/libsa
43 UBOOTSRC= ${BOOTSRC}/uboot
45 LIBCSRC= ${SRCTOP}/lib/libc
47 BOOTOBJ= ${OBJTOP}/stand
49 # BINDIR is where we install
52 # LUAPATH is where we search for and install lua scripts.
54 FLUASRC?= ${SRCTOP}/libexec/flua
56 LIBSA= ${BOOTOBJ}/libsa/libsa.a
57 .if ${MACHINE} == "i386"
60 LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a
65 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
66 CFLAGS+= -I${BOOTOBJ}/libsa32
68 CFLAGS+= -I${BOOTOBJ}/libsa
70 CFLAGS+= -I${SASRC} -D_STANDALONE
72 # Spike the floating point interfaces
73 CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
74 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
75 # Slim down the image. This saves about 15% in size with clang 6 on x86
76 # Our most constrained /boot/loader env is BIOS booting on x86, where
77 # our text + data + BTX have to fit into 640k below the ISA hole.
78 # Experience has shown that problems arise between ~520k to ~530k.
81 CFLAGS+= -ffunction-sections -fdata-sections
84 # GELI Support, with backward compat hooks (mostly)
85 .if defined(LOADER_NO_GELI_SUPPORT)
87 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
89 .if defined(LOADER_GELI_SUPPORT)
91 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
93 .if ${MK_LOADER_GELI} == "yes"
94 CFLAGS+= -DLOADER_GELI_SUPPORT
95 CFLAGS+= -I${SASRC}/geli
96 .endif # MK_LOADER_GELI
98 # These should be confined to loader.mk, but can't because uboot/lib
99 # also uses it. It's part of loader, but isn't a loader so we can't
100 # just include loader.mk
101 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
102 CFLAGS+= -DLOADER_DISK_SUPPORT
105 # Machine specific flags for all builds here
107 # All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
109 .if ${MACHINE_ARCH} == "powerpc64"
110 CFLAGS+= -m32 -mcpu=powerpc
113 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
114 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
115 # and activate it when DO32 is explicitly defined to be 1.
116 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
118 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
119 LD_FLAGS+= -m elf_i386_fbsd
125 # Add in the no float / no SIMD stuff and announce we're freestanding
126 # aarch64 and riscv don't have -msoft-float, but all others do. riscv
127 # currently has no /boot/loader, but may soon.
128 CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD}
129 .if ${MACHINE_CPUARCH} == "aarch64"
130 CFLAGS+= -mgeneral-regs-only -fPIC
131 .elif ${MACHINE_CPUARCH} == "riscv"
132 CFLAGS+= -march=rv64imac -mabi=lp64
134 CFLAGS+= -msoft-float
137 # -msoft-float seems to be insufficient for powerpcspe
138 .if ${MACHINE_ARCH} == "powerpcspe"
142 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
144 CFLAGS.gcc+= -mpreferred-stack-boundary=2
146 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
147 CFLAGS+= -fPIC -mno-red-zone
150 .if ${MACHINE_CPUARCH} == "arm"
151 # Do not generate movt/movw, because the relocation fixup for them does not
152 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
153 # Also, the fpu is not available in a standalone environment.
154 .if ${COMPILER_VERSION} < 30800
155 CFLAGS.clang+= -mllvm -arm-use-movt=0
157 CFLAGS.clang+= -mno-movt
159 CFLAGS.clang+= -mfpu=none
163 # The boot loader build uses dd status=none, where possible, for reproducible
164 # build output (since performance varies from run to run). Trouble is that
165 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
166 # when this test succeeds rather than require dd to be a bootstrap tool.
167 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
170 .if ${MACHINE_CPUARCH} == "mips"
171 CFLAGS+= -G0 -fno-pic -mno-abicalls
174 .if ${MK_LOADER_FORCE_LE} != "no"
175 .if ${MACHINE_ARCH} == "powerpc64"
176 CFLAGS+= -mlittle-endian
181 # Have a sensible default
183 .if ${MK_LOADER_LUA} == "yes"
184 LOADER_DEFAULT_INTERP?=lua
185 .elif ${MK_FORTH} == "yes"
186 LOADER_DEFAULT_INTERP?=4th
188 LOADER_DEFAULT_INTERP?=simp
190 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
192 # Make sure we use the machine link we're about to create
198 _ILINKS=include/machine
199 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
200 _ILINKS+=include/${MACHINE_CPUARCH}
202 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
208 beforedepend: ${_ILINKS}
209 beforebuild: ${_ILINKS}
211 # Ensure that the links exist without depending on it when it exists which
212 # causes all the modules to be rebuilt when the directory pointed to changes.
213 .for _link in ${_ILINKS}
214 .if !exists(${.OBJDIR}/${_link})
216 .endif # _link exists
222 @case ${.TARGET:T} in \
224 if [ ${DO32:U0} -eq 0 ]; then \
225 path=${SYSDIR}/${MACHINE}/include ; \
227 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
230 path=${SYSDIR}/${.TARGET:T}/include ;; \
233 */*) mkdir -p ${.TARGET:H};; \
235 path=`(cd $$path && /bin/pwd)` ; \
236 ${ECHO} ${.TARGET} "->" $$path ; \
237 ln -fhs $$path ${.TARGET}
239 .endif # __BOOT_DEFS_MK__