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 .include <src.opts.mk>
32 BOOTSRC= ${SRCTOP}/stand
33 EFISRC= ${BOOTSRC}/efi
34 EFIINC= ${EFISRC}/include
35 EFIINCMD= ${EFIINC}/${MACHINE}
36 FDTSRC= ${BOOTSRC}/fdt
37 FICLSRC= ${BOOTSRC}/ficl
38 LDRSRC= ${BOOTSRC}/common
39 LIBLUASRC= ${BOOTSRC}/liblua
40 LIBOFWSRC= ${BOOTSRC}/libofw
41 LUASRC= ${SRCTOP}/contrib/lua/src
42 SASRC= ${BOOTSRC}/libsa
44 UBOOTSRC= ${BOOTSRC}/uboot
46 LIBCSRC= ${SRCTOP}/lib/libc
48 BOOTOBJ= ${OBJTOP}/stand
50 # BINDIR is where we install
53 # LUAPATH is where we search for and install lua scripts.
55 FLUASRC?= ${SRCTOP}/libexec/flua
57 LIBSA= ${BOOTOBJ}/libsa/libsa.a
58 .if ${MACHINE} == "i386"
61 LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a
66 # Allow CFLAGS_EARLY.file/target so that code that needs specific stack
67 # of include paths can set them up before our include paths. Normally
68 # the only thing that should be there are -I directives, and as few of
70 CFLAGS+= ${CFLAGS_EARLY} ${CFLAGS_EARLY.${.IMPSRC:T}} ${CFLAGS_EARLY.${.TARGET:T}}
71 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
72 CFLAGS+= -I${BOOTOBJ}/libsa32
74 CFLAGS+= -I${BOOTOBJ}/libsa
76 CFLAGS+= -I${SASRC} -D_STANDALONE
78 # Spike the floating point interfaces
79 CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
80 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
81 # Slim down the image. This saves about 15% in size with clang 6 on x86
82 # Our most constrained /boot/loader env is BIOS booting on x86, where
83 # our text + data + BTX have to fit into 640k below the ISA hole.
84 # Experience has shown that problems arise between ~520k to ~530k.
87 CFLAGS+= -ffunction-sections -fdata-sections
90 # GELI Support, with backward compat hooks (mostly)
91 .if defined(LOADER_NO_GELI_SUPPORT)
93 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
95 .if defined(LOADER_GELI_SUPPORT)
97 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
99 .if ${MK_LOADER_GELI} == "yes"
100 CFLAGS+= -DLOADER_GELI_SUPPORT
101 CFLAGS+= -I${SASRC}/geli
102 .endif # MK_LOADER_GELI
104 # These should be confined to loader.mk, but can't because uboot/lib
105 # also uses it. It's part of loader, but isn't a loader so we can't
106 # just include loader.mk
107 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
108 CFLAGS+= -DLOADER_DISK_SUPPORT
111 # Machine specific flags for all builds here
113 # All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
115 .if ${MACHINE_ARCH} == "powerpc64"
116 CFLAGS+= -m32 -mcpu=powerpc
119 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
120 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
121 # and activate it when DO32 is explicitly defined to be 1.
122 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
124 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
125 LD_FLAGS+= -m elf_i386_fbsd
129 # Add in the no float / no SIMD stuff and announce we're freestanding
130 # aarch64 and riscv don't have -msoft-float, but all others do. riscv
131 # currently has no /boot/loader, but may soon.
132 CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD}
133 .if ${MACHINE_CPUARCH} == "aarch64"
134 CFLAGS+= -mgeneral-regs-only -ffixed-x18 -fPIC
135 .elif ${MACHINE_CPUARCH} == "riscv"
136 CFLAGS+= -march=rv64imac -mabi=lp64
138 CFLAGS+= -msoft-float
141 # -msoft-float seems to be insufficient for powerpcspe
142 .if ${MACHINE_ARCH} == "powerpcspe"
146 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
148 CFLAGS.gcc+= -mpreferred-stack-boundary=2
150 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
151 CFLAGS+= -fPIC -mno-red-zone
154 .if ${MACHINE_CPUARCH} == "arm"
155 # Do not generate movt/movw, because the relocation fixup for them does not
156 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
157 # Also, the fpu is not available in a standalone environment.
158 .if ${COMPILER_VERSION} < 30800
159 CFLAGS.clang+= -mllvm -arm-use-movt=0
161 CFLAGS.clang+= -mno-movt
163 CFLAGS.clang+= -mfpu=none
167 # The boot loader build uses dd status=none, where possible, for reproducible
168 # build output (since performance varies from run to run). Trouble is that
169 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
170 # when this test succeeds rather than require dd to be a bootstrap tool.
171 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
174 .if ${MACHINE_CPUARCH} == "mips"
175 CFLAGS+= -G0 -fno-pic -mno-abicalls
178 .if ${MK_LOADER_FORCE_LE} != "no"
179 .if ${MACHINE_ARCH} == "powerpc64"
180 CFLAGS+= -mlittle-endian
185 # Have a sensible default
187 .if ${MK_LOADER_LUA} == "yes"
188 LOADER_DEFAULT_INTERP?=lua
189 .elif ${MK_FORTH} == "yes"
190 LOADER_DEFAULT_INTERP?=4th
192 LOADER_DEFAULT_INTERP?=simp
194 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
196 # Make sure we use the machine link we're about to create
202 _ILINKS=include/machine
203 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
204 _ILINKS+=include/${MACHINE_CPUARCH}
206 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
212 beforedepend: ${_ILINKS}
213 beforebuild: ${_ILINKS}
215 # Ensure that the links exist without depending on it when it exists which
216 # causes all the modules to be rebuilt when the directory pointed to changes.
217 .for _link in ${_ILINKS}
218 .if !exists(${.OBJDIR}/${_link})
220 .endif # _link exists
226 @case ${.TARGET:T} in \
228 if [ ${DO32:U0} -eq 0 ]; then \
229 path=${SYSDIR}/${MACHINE}/include ; \
231 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
234 path=${SYSDIR}/${.TARGET:T}/include ;; \
237 */*) mkdir -p ${.TARGET:H};; \
239 path=`(cd $$path && /bin/pwd)` ; \
240 ${ECHO} ${.TARGET} "->" $$path ; \
241 ln -fns $$path ${.TARGET}
243 .endif # __BOOT_DEFS_MK__