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1 # $FreeBSD$
2
3 .if !defined(__BOOT_DEFS_MK__)
4 __BOOT_DEFS_MK__=${MFILE}
5
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,
8 # espeically MK_CTF.
9
10 MK_CTF=         no
11 MK_SSP=         no
12 MK_PROFILE=     no
13 MAN=
14 .if !defined(PIC)
15 NO_PIC=
16 INTERNALLIB=
17 .endif
18
19 .include <src.opts.mk>
20
21 WARNS?=         1
22
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
33 SYSDIR=         ${SRCTOP}/sys
34 UBOOTSRC=       ${BOOTSRC}/uboot
35 ZFSSRC=         ${SASRC}/zfs
36 LIBCSRC=        ${SRCTOP}/lib/libc
37
38 BOOTOBJ=        ${OBJTOP}/stand
39
40 # BINDIR is where we install
41 BINDIR?=        /boot
42
43 # LUAPATH is where we search for and install lua scripts.
44 LUAPATH?=       /boot/lua
45
46 LIBSA=          ${BOOTOBJ}/libsa/libsa.a
47 .if ${MACHINE} == "i386"
48 LIBSA32=        ${LIBSA}
49 .else
50 LIBSA32=        ${BOOTOBJ}/libsa32/libsa32.a
51 .endif
52
53 # Standard options:
54 CFLAGS+=        -nostdinc
55 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
56 CFLAGS+=        -I${BOOTOBJ}/libsa32
57 .else
58 CFLAGS+=        -I${BOOTOBJ}/libsa
59 .endif
60 CFLAGS+=        -I${SASRC} -D_STANDALONE
61 CFLAGS+=        -I${SYSDIR}
62 # Spike the floating point interfaces
63 CFLAGS+=        -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
64 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
65 # Slim down the image. This saves about 15% in size with clang 6 on x86
66 # Our most constrained /boot/loader env is BIOS booting on x86, where
67 # our text + data + BTX have to fit into 640k below the ISA hole.
68 # Experience has shown that problems arise between ~520k to ~530k.
69 CFLAGS.clang+=  -Oz
70 CFLAGS.gcc+=    -Os
71 CFLAGS+=        -ffunction-sections -fdata-sections
72 .endif
73
74 # GELI Support, with backward compat hooks (mostly)
75 .if defined(LOADER_NO_GELI_SUPPORT)
76 MK_LOADER_GELI=no
77 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
78 .endif
79 .if defined(LOADER_GELI_SUPPORT)
80 MK_LOADER_GELI=yes
81 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
82 .endif
83 .if ${MK_LOADER_GELI} == "yes"
84 CFLAGS+=        -DLOADER_GELI_SUPPORT
85 CFLAGS+=        -I${SASRC}/geli
86 .endif # MK_LOADER_GELI
87
88 # These should be confined to loader.mk, but can't because uboot/lib
89 # also uses it. It's part of loader, but isn't a loader so we can't
90 # just include loader.mk
91 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
92 CFLAGS+= -DLOADER_DISK_SUPPORT
93 .endif
94
95 # Machine specific flags for all builds here
96
97 # All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
98 # or powerpc64.
99 .if ${MACHINE_ARCH} == "powerpc64"
100 CFLAGS+=        -m32 -mcpu=powerpc
101 .endif
102
103 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
104 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
105 # and activate it when DO32 is explicitly defined to be 1.
106 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
107 CFLAGS+=        -m32
108 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
109 LD_FLAGS+=      -m elf_i386_fbsd
110 AFLAGS+=        --32
111 .endif
112
113 SSP_CFLAGS=
114
115 # Add in the no float / no SIMD stuff and announce we're freestanding
116 # aarch64 and riscv don't have -msoft-float, but all others do. riscv
117 # currently has no /boot/loader, but may soon.
118 CFLAGS+=        -ffreestanding ${CFLAGS_NO_SIMD}
119 .if ${MACHINE_CPUARCH} == "aarch64"
120 CFLAGS+=        -mgeneral-regs-only -fPIC
121 .elif ${MACHINE_CPUARCH} == "riscv"
122 CFLAGS+=        -march=rv64imac -mabi=lp64
123 .else
124 CFLAGS+=        -msoft-float
125 .endif
126
127 # -msoft-float seems to be insufficient for powerpcspe
128 .if ${MACHINE_ARCH} == "powerpcspe"
129 CFLAGS+=        -mno-spe
130 .endif
131
132 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
133 CFLAGS+=        -march=i386
134 CFLAGS.gcc+=    -mpreferred-stack-boundary=2
135 .endif
136 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
137 CFLAGS+=        -fPIC -mno-red-zone
138 .endif
139
140 .if ${MACHINE_CPUARCH} == "arm"
141 # Do not generate movt/movw, because the relocation fixup for them does not
142 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
143 # Also, the fpu is not available in a standalone environment.
144 .if ${COMPILER_VERSION} < 30800
145 CFLAGS.clang+=  -mllvm -arm-use-movt=0
146 .else
147 CFLAGS.clang+=  -mno-movt
148 .endif
149 CFLAGS.clang+=  -mfpu=none
150 CFLAGS+=        -fPIC
151 .endif
152
153 # The boot loader build uses dd status=none, where possible, for reproducible
154 # build output (since performance varies from run to run). Trouble is that
155 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
156 # when this test succeeds rather than require dd to be a bootstrap tool.
157 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
158 DD=dd ${DD_NOSTATUS}
159
160 .if ${MACHINE_CPUARCH} == "mips"
161 CFLAGS+=        -G0 -fno-pic -mno-abicalls
162 .endif
163
164 .if ${MK_LOADER_FORCE_LE} != "no"
165 .if ${MACHINE_ARCH} == "powerpc64"
166 CFLAGS+=        -mlittle-endian
167 .endif
168 .endif
169
170 #
171 # Have a sensible default
172 #
173 .if ${MK_LOADER_LUA} == "yes"
174 LOADER_DEFAULT_INTERP?=lua
175 .elif ${MK_FORTH} == "yes"
176 LOADER_DEFAULT_INTERP?=4th
177 .else
178 LOADER_DEFAULT_INTERP?=simp
179 .endif
180 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
181
182 # Make sure we use the machine link we're about to create
183 CFLAGS+=-I.
184
185 all: ${PROG}
186
187 CLEANFILES+= teken_state.h
188 teken.c: teken_state.h
189
190 teken_state.h: ${SYSDIR}/teken/sequences
191         awk -f ${SYSDIR}/teken/gensequences \
192                 ${SYSDIR}/teken/sequences > teken_state.h
193
194 .if !defined(NO_OBJ)
195 _ILINKS=include/machine
196 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
197 _ILINKS+=include/${MACHINE_CPUARCH}
198 .endif
199 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
200 _ILINKS+=include/x86
201 .endif
202 CFLAGS+= -Iinclude
203 CLEANDIRS+= include
204
205 beforedepend: ${_ILINKS}
206 beforebuild: ${_ILINKS}
207
208 # Ensure that the links exist without depending on it when it exists which
209 # causes all the modules to be rebuilt when the directory pointed to changes.
210 .for _link in ${_ILINKS}
211 .if !exists(${.OBJDIR}/${_link})
212 ${OBJS}:       ${_link}
213 .endif # _link exists
214 .endfor
215
216 .NOPATH: ${_ILINKS}
217
218 ${_ILINKS}: .NOMETA
219         @case ${.TARGET:T} in \
220         machine) \
221                 if [ ${DO32:U0} -eq 0 ]; then \
222                         path=${SYSDIR}/${MACHINE}/include ; \
223                 else \
224                         path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
225                 fi ;; \
226         *) \
227                 path=${SYSDIR}/${.TARGET:T}/include ;; \
228         esac ; \
229         case ${.TARGET} in \
230         */*) mkdir -p ${.TARGET:H};; \
231         esac ; \
232         path=`(cd $$path && /bin/pwd)` ; \
233         ${ECHO} ${.TARGET} "->" $$path ; \
234         ln -fhs $$path ${.TARGET}
235 .endif # !NO_OBJ
236 .endif # __BOOT_DEFS_MK__