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>
20 .include <bsd.linker.mk>
24 BOOTSRC= ${SRCTOP}/stand
25 EFISRC= ${BOOTSRC}/efi
26 EFIINC= ${EFISRC}/include
27 EFIINCMD= ${EFIINC}/${MACHINE}
28 FDTSRC= ${BOOTSRC}/fdt
29 FICLSRC= ${BOOTSRC}/ficl
30 LDRSRC= ${BOOTSRC}/common
31 LIBLUASRC= ${BOOTSRC}/liblua
32 LIBOFWSRC= ${BOOTSRC}/libofw
33 LUASRC= ${SRCTOP}/contrib/lua/src
34 SASRC= ${BOOTSRC}/libsa
36 UBOOTSRC= ${BOOTSRC}/uboot
38 LIBCSRC= ${SRCTOP}/lib/libc
40 BOOTOBJ= ${OBJTOP}/stand
42 # BINDIR is where we install
45 # LUAPATH is where we search for and install lua scripts.
47 FLUASRC?= ${SRCTOP}/libexec/flua
49 LIBSA= ${BOOTOBJ}/libsa/libsa.a
50 .if ${MACHINE} == "i386"
53 LIBSA32= ${BOOTOBJ}/libsa32/libsa32.a
58 # Allow CFLAGS_EARLY.file/target so that code that needs specific stack
59 # of include paths can set them up before our include paths. Normally
60 # the only thing that should be there are -I directives, and as few of
62 CFLAGS+= ${CFLAGS_EARLY} ${CFLAGS_EARLY.${.IMPSRC:T}} ${CFLAGS_EARLY.${.TARGET:T}}
63 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
64 CFLAGS+= -I${BOOTOBJ}/libsa32
66 CFLAGS+= -I${BOOTOBJ}/libsa
68 CFLAGS+= -I${SASRC} -D_STANDALONE
70 # Spike the floating point interfaces
71 CFLAGS+= -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
72 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
73 # Slim down the image. This saves about 15% in size with clang 6 on x86
74 # Our most constrained /boot/loader env is BIOS booting on x86, where
75 # our text + data + BTX have to fit into 640k below the ISA hole.
76 # Experience has shown that problems arise between ~520k to ~530k.
79 CFLAGS+= -ffunction-sections -fdata-sections
82 # GELI Support, with backward compat hooks (mostly)
83 .if defined(LOADER_NO_GELI_SUPPORT)
85 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
87 .if defined(LOADER_GELI_SUPPORT)
89 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
91 .if ${MK_LOADER_GELI} == "yes"
92 CFLAGS+= -DLOADER_GELI_SUPPORT
93 CFLAGS+= -I${SASRC}/geli
94 .endif # MK_LOADER_GELI
96 # These should be confined to loader.mk, but can't because uboot/lib
97 # also uses it. It's part of loader, but isn't a loader so we can't
98 # just include loader.mk
99 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
100 CFLAGS+= -DLOADER_DISK_SUPPORT
103 # Machine specific flags for all builds here
105 # All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
107 .if ${MACHINE_ARCH} == "powerpc64"
108 CFLAGS+= -m32 -mcpu=powerpc
111 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
112 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
113 # and activate it when DO32 is explicitly defined to be 1.
114 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
116 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
117 LD_FLAGS+= -m elf_i386_fbsd
123 # Add in the no float / no SIMD stuff and announce we're freestanding
124 # aarch64 and riscv don't have -msoft-float, but all others do.
125 CFLAGS+= -ffreestanding ${CFLAGS_NO_SIMD}
126 .if ${MACHINE_CPUARCH} == "aarch64"
127 CFLAGS+= -mgeneral-regs-only -ffixed-x18 -fPIC
128 .elif ${MACHINE_CPUARCH} == "riscv"
129 CFLAGS+= -march=rv64imac -mabi=lp64 -fPIC
130 CFLAGS.clang+= -mcmodel=medium
131 CFLAGS.gcc+= -mcmodel=medany
133 CFLAGS+= -msoft-float
136 # -msoft-float seems to be insufficient for powerpcspe
137 .if ${MACHINE_ARCH} == "powerpcspe"
141 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
143 CFLAGS.gcc+= -mpreferred-stack-boundary=2
145 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
146 CFLAGS+= -fPIC -mno-red-zone
149 .if ${MACHINE_CPUARCH} == "arm"
150 # Do not generate movt/movw, because the relocation fixup for them does not
151 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
152 # Also, the fpu is not available in a standalone environment.
153 CFLAGS.clang+= -mno-movt
154 CFLAGS.clang+= -mfpu=none
158 # Some RISC-V linkers have support for relaxations, while some (lld) do not
159 # yet. If this is the case we inhibit the compiler from emitting relaxations.
160 .if ${LINKER_FEATURES:Mriscv-relaxations} == ""
164 # The boot loader build uses dd status=none, where possible, for reproducible
165 # build output (since performance varies from run to run). Trouble is that
166 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
167 # when this test succeeds rather than require dd to be a bootstrap tool.
168 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
171 .if ${MACHINE_CPUARCH} == "mips"
172 CFLAGS+= -G0 -fno-pic -mno-abicalls
175 .if ${MK_LOADER_FORCE_LE} != "no"
176 .if ${MACHINE_ARCH} == "powerpc64"
177 CFLAGS+= -mlittle-endian
182 # Have a sensible default
184 .if ${MK_LOADER_LUA} == "yes"
185 LOADER_DEFAULT_INTERP?=lua
186 .elif ${MK_FORTH} == "yes"
187 LOADER_DEFAULT_INTERP?=4th
189 LOADER_DEFAULT_INTERP?=simp
191 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
193 # Make sure we use the machine link we're about to create
198 CLEANFILES+= teken_state.h
199 teken.c: teken_state.h
201 teken_state.h: ${SYSDIR}/teken/sequences
202 awk -f ${SYSDIR}/teken/gensequences \
203 ${SYSDIR}/teken/sequences > teken_state.h
206 _ILINKS=include/machine
207 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
208 _ILINKS+=include/${MACHINE_CPUARCH}
210 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
216 beforedepend: ${_ILINKS}
217 beforebuild: ${_ILINKS}
219 # Ensure that the links exist without depending on it when it exists which
220 # causes all the modules to be rebuilt when the directory pointed to changes.
221 .for _link in ${_ILINKS}
222 .if !exists(${.OBJDIR}/${_link})
224 .endif # _link exists
230 @case ${.TARGET:T} in \
232 if [ ${DO32:U0} -eq 0 ]; then \
233 path=${SYSDIR}/${MACHINE}/include ; \
235 path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
238 path=${SYSDIR}/${.TARGET:T}/include ;; \
241 */*) mkdir -p ${.TARGET:H};; \
243 path=`(cd $$path && /bin/pwd)` ; \
244 ${ECHO} ${.TARGET} "->" $$path ; \
245 ln -fns $$path ${.TARGET}
247 .endif # __BOOT_DEFS_MK__