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 # LUAPATH is where we search for and install lua scripts.
45 FLUASRC?= ${SRCTOP}/libexec/flua
47 LIBSA= ${BOOTOBJ}/libsa/libsa.a
48 .if ${MACHINE} == "i386"
51 LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a
56 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
57 CFLAGS+= -I${BOOTOBJ}/libsa32
59 CFLAGS+= -I${BOOTOBJ}/libsa
61 CFLAGS+= -I${SASRC} -D_STANDALONE
63 # Spike the floating point interfaces
64 CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
65 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
66 # Slim down the image. This saves about 15% in size with clang 6 on x86
67 # Our most constrained /boot/loader env is BIOS booting on x86, where
68 # our text + data + BTX have to fit into 640k below the ISA hole.
69 # Experience has shown that problems arise between ~520k to ~530k.
72 CFLAGS+= -ffunction-sections -fdata-sections
75 # GELI Support, with backward compat hooks (mostly)
76 .if defined(LOADER_NO_GELI_SUPPORT)
78 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
80 .if defined(LOADER_GELI_SUPPORT)
82 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
84 .if ${MK_LOADER_GELI} == "yes"
85 CFLAGS+= -DLOADER_GELI_SUPPORT
86 CFLAGS+= -I${SASRC}/geli
87 .endif # MK_LOADER_GELI
89 # These should be confined to loader.mk, but can't because uboot/lib
90 # also uses it. It's part of loader, but isn't a loader so we can't
91 # just include loader.mk
92 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
93 CFLAGS+= -DLOADER_DISK_SUPPORT
96 # Machine specific flags for all builds here
98 # All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
100 .if ${MACHINE_ARCH} == "powerpc64"
101 CFLAGS+= -m32 -mcpu=powerpc
104 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
105 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
106 # and activate it when DO32 is explicitly defined to be 1.
107 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
109 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
110 LD_FLAGS+= -m elf_i386_fbsd
116 # Add in the no float / no SIMD stuff and announce we're freestanding
117 # aarch64 and riscv don't have -msoft-float, but all others do. riscv
118 # currently has no /boot/loader, but may soon.
119 CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD}
120 .if ${MACHINE_CPUARCH} == "aarch64"
121 CFLAGS+= -mgeneral-regs-only -fPIC
122 .elif ${MACHINE_CPUARCH} == "riscv"
123 CFLAGS+= -march=rv64imac -mabi=lp64
125 CFLAGS+= -msoft-float
128 # -msoft-float seems to be insufficient for powerpcspe
129 .if ${MACHINE_ARCH} == "powerpcspe"
133 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
135 CFLAGS.gcc+= -mpreferred-stack-boundary=2
137 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
138 CFLAGS+= -fPIC -mno-red-zone
141 .if ${MACHINE_CPUARCH} == "arm"
142 # Do not generate movt/movw, because the relocation fixup for them does not
143 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
144 # Also, the fpu is not available in a standalone environment.
145 .if ${COMPILER_VERSION} < 30800
146 CFLAGS.clang+= -mllvm -arm-use-movt=0
148 CFLAGS.clang+= -mno-movt
150 CFLAGS.clang+= -mfpu=none
154 # The boot loader build uses dd status=none, where possible, for reproducible
155 # build output (since performance varies from run to run). Trouble is that
156 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
157 # when this test succeeds rather than require dd to be a bootstrap tool.
158 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
161 .if ${MACHINE_CPUARCH} == "mips"
162 CFLAGS+= -G0 -fno-pic -mno-abicalls
165 .if ${MK_LOADER_FORCE_LE} != "no"
166 .if ${MACHINE_ARCH} == "powerpc64"
167 CFLAGS+= -mlittle-endian
172 # Have a sensible default
174 .if ${MK_LOADER_LUA} == "yes"
175 LOADER_DEFAULT_INTERP?=lua
176 .elif ${MK_FORTH} == "yes"
177 LOADER_DEFAULT_INTERP?=4th
179 LOADER_DEFAULT_INTERP?=simp
181 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
183 # Make sure we use the machine link we're about to create
189 _ILINKS=include/machine
190 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
191 _ILINKS+=include/${MACHINE_CPUARCH}
193 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
199 beforedepend: ${_ILINKS}
200 beforebuild: ${_ILINKS}
202 # Ensure that the links exist without depending on it when it exists which
203 # causes all the modules to be rebuilt when the directory pointed to changes.
204 .for _link in ${_ILINKS}
205 .if !exists(${.OBJDIR}/${_link})
207 .endif # _link exists
213 @case ${.TARGET:T} in \
215 if [ ${DO32:U0} -eq 0 ]; then \
216 path=${SYSDIR}/${MACHINE}/include ; \
218 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
221 path=${SYSDIR}/${.TARGET:T}/include ;; \
224 */*) mkdir -p ${.TARGET:H};; \
226 path=`(cd $$path && /bin/pwd)` ; \
227 ${ECHO} ${.TARGET} "->" $$path ; \
228 ln -fhs $$path ${.TARGET}
230 .endif # __BOOT_DEFS_MK__