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 .include <src.opts.mk>
23 BOOTSRC= ${SRCTOP}/stand
24 EFISRC= ${BOOTSRC}/efi
25 EFIINC= ${EFISRC}/include
26 EFIINCMD= ${EFIINC}/${MACHINE}
27 FDTSRC= ${BOOTSRC}/fdt
28 FICLSRC= ${BOOTSRC}/ficl
29 LDRSRC= ${BOOTSRC}/common
30 LIBLUASRC= ${BOOTSRC}/liblua
31 LUASRC= ${SRCTOP}/contrib/lua/src
32 SASRC= ${BOOTSRC}/libsa
34 UBOOTSRC= ${BOOTSRC}/uboot
36 LIBCSRC= ${SRCTOP}/lib/libc
38 BOOTOBJ= ${OBJTOP}/stand
40 # BINDIR is where we install
43 LIBSA= ${BOOTOBJ}/libsa/libsa.a
44 .if ${MACHINE} == "i386"
47 LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a
52 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
53 CFLAGS+= -I${BOOTOBJ}/libsa32
55 CFLAGS+= -I${BOOTOBJ}/libsa
57 CFLAGS+= -I${SASRC} -D_STANDALONE
59 # Spike the floating point interfaces
60 CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
61 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
62 # Slim down the image. This saves about 15% in size with clang 6 on x86
63 # Our most constrained /boot/loader env is BIOS booting on x86, where
64 # our text + data + BTX have to fit into 640k below the ISA hole.
65 # Experience has shown that problems arise between ~520k to ~530k.
70 # GELI Support, with backward compat hooks (mostly)
71 .if defined(LOADER_NO_GELI_SUPPORT)
73 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
75 .if defined(LOADER_GELI_SUPPORT)
77 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
79 .if ${MK_LOADER_GELI} == "yes"
80 CFLAGS+= -DLOADER_GELI_SUPPORT
81 CFLAGS+= -I${SASRC}/geli
82 .endif # MK_LOADER_GELI
84 # These should be confined to loader.mk, but can't because uboot/lib
85 # also uses it. It's part of loader, but isn't a loader so we can't
86 # just include loader.mk
87 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
88 CFLAGS+= -DLOADER_DISK_SUPPORT
91 # Machine specific flags for all builds here
93 # All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
95 .if ${MACHINE_ARCH} == "powerpc64"
96 CFLAGS+= -m32 -mcpu=powerpc
99 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
100 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
101 # and activate it when DO32 is explicitly defined to be 1.
102 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
104 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
105 LD_FLAGS+= -m elf_i386_fbsd
111 # Add in the no float / no SIMD stuff and announce we're freestanding
112 # aarch64 and riscv don't have -msoft-float, but all others do. riscv
113 # currently has no /boot/loader, but may soon.
114 CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD}
115 .if ${MACHINE_CPUARCH} == "aarch64"
116 CFLAGS+= -mgeneral-regs-only -fPIC
117 .elif ${MACHINE_CPUARCH} == "riscv"
118 CFLAGS+= -march=rv64imac -mabi=lp64
120 CFLAGS+= -msoft-float
123 # -msoft-float seems to be insufficient for powerpcspe
124 .if ${MACHINE_ARCH} == "powerpcspe"
128 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
130 CFLAGS.gcc+= -mpreferred-stack-boundary=2
132 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
133 CFLAGS+= -fPIC -mno-red-zone
136 .if ${MACHINE_CPUARCH} == "arm"
137 # Do not generate movt/movw, because the relocation fixup for them does not
138 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
139 # Also, the fpu is not available in a standalone environment.
140 .if ${COMPILER_VERSION} < 30800
141 CFLAGS.clang+= -mllvm -arm-use-movt=0
143 CFLAGS.clang+= -mno-movt
145 CFLAGS.clang+= -mfpu=none
149 # The boot loader build uses dd status=none, where possible, for reproducible
150 # build output (since performance varies from run to run). Trouble is that
151 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
152 # when this test succeeds rather than require dd to be a bootstrap tool.
153 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
156 .if ${MACHINE_CPUARCH} == "mips"
157 CFLAGS+= -G0 -fno-pic -mno-abicalls
160 .if ${MK_LOADER_FORCE_LE} != "no"
161 .if ${MACHINE_ARCH} == "powerpc64"
162 CFLAGS+= -mlittle-endian
167 # Have a sensible default
169 .if ${MK_LOADER_LUA} == "yes"
170 LOADER_DEFAULT_INTERP?=lua
171 .elif ${MK_FORTH} == "yes"
172 LOADER_DEFAULT_INTERP?=4th
174 LOADER_DEFAULT_INTERP?=simp
176 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
178 # Make sure we use the machine link we're about to create
185 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
186 _ILINKS+=${MACHINE_CPUARCH}
188 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
191 CLEANFILES+=${_ILINKS}
193 beforedepend: ${_ILINKS}
194 beforebuild: ${_ILINKS}
196 # Ensure that the links exist without depending on it when it exists which
197 # causes all the modules to be rebuilt when the directory pointed to changes.
198 .for _link in ${_ILINKS}
199 .if !exists(${.OBJDIR}/${_link})
201 .endif # _link exists
207 @case ${.TARGET} in \
209 if [ ${DO32:U0} -eq 0 ]; then \
210 path=${SYSDIR}/${MACHINE}/include ; \
212 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
215 path=${SYSDIR}/${.TARGET:T}/include ;; \
217 path=`(cd $$path && /bin/pwd)` ; \
218 ${ECHO} ${.TARGET:T} "->" $$path ; \
219 ln -fhs $$path ${.TARGET:T}
221 .endif # __BOOT_DEFS_MK__