]> CyberLeo.Net >> Repos - FreeBSD/FreeBSD.git/blob - stand/defs.mk
Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
[FreeBSD/FreeBSD.git] / stand / defs.mk
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 .include <bsd.linker.mk>
21
22 WARNS?=         1
23
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
35 SYSDIR=         ${SRCTOP}/sys
36 UBOOTSRC=       ${BOOTSRC}/uboot
37 ZFSSRC=         ${SASRC}/zfs
38 LIBCSRC=        ${SRCTOP}/lib/libc
39
40 BOOTOBJ=        ${OBJTOP}/stand
41
42 # BINDIR is where we install
43 BINDIR?=        /boot
44
45 # LUAPATH is where we search for and install lua scripts.
46 LUAPATH?=       /boot/lua
47 FLUASRC?=       ${SRCTOP}/libexec/flua
48
49 LIBSA=          ${BOOTOBJ}/libsa/libsa.a
50 .if ${MACHINE} == "i386"
51 LIBSA32=        ${LIBSA}
52 .else
53 LIBSA32=        ${BOOTOBJ}/libsa32/libsa32.a
54 .endif
55
56 # Standard options:
57 CFLAGS+=        -nostdinc
58 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
59 CFLAGS+=        -I${BOOTOBJ}/libsa32
60 .else
61 CFLAGS+=        -I${BOOTOBJ}/libsa
62 .endif
63 CFLAGS+=        -I${SASRC} -D_STANDALONE
64 CFLAGS+=        -I${SYSDIR}
65 # Spike the floating point interfaces
66 CFLAGS+=        -Ddouble=jagged-little-pill -Dfloat=floaty-mcfloatface
67 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "amd64"
68 # Slim down the image. This saves about 15% in size with clang 6 on x86
69 # Our most constrained /boot/loader env is BIOS booting on x86, where
70 # our text + data + BTX have to fit into 640k below the ISA hole.
71 # Experience has shown that problems arise between ~520k to ~530k.
72 CFLAGS.clang+=  -Oz
73 CFLAGS.gcc+=    -Os
74 CFLAGS+=        -ffunction-sections -fdata-sections
75 .endif
76
77 # GELI Support, with backward compat hooks (mostly)
78 .if defined(LOADER_NO_GELI_SUPPORT)
79 MK_LOADER_GELI=no
80 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
81 .endif
82 .if defined(LOADER_GELI_SUPPORT)
83 MK_LOADER_GELI=yes
84 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
85 .endif
86 .if ${MK_LOADER_GELI} == "yes"
87 CFLAGS+=        -DLOADER_GELI_SUPPORT
88 CFLAGS+=        -I${SASRC}/geli
89 .endif # MK_LOADER_GELI
90
91 # These should be confined to loader.mk, but can't because uboot/lib
92 # also uses it. It's part of loader, but isn't a loader so we can't
93 # just include loader.mk
94 .if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
95 CFLAGS+= -DLOADER_DISK_SUPPORT
96 .endif
97
98 # Machine specific flags for all builds here
99
100 # All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
101 # or powerpc64.
102 .if ${MACHINE_ARCH} == "powerpc64"
103 CFLAGS+=        -m32 -mcpu=powerpc
104 .endif
105
106 # For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
107 # build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
108 # and activate it when DO32 is explicitly defined to be 1.
109 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
110 CFLAGS+=        -m32
111 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
112 LD_FLAGS+=      -m elf_i386_fbsd
113 AFLAGS+=        --32
114 .endif
115
116 SSP_CFLAGS=
117
118 # Add in the no float / no SIMD stuff and announce we're freestanding
119 # aarch64 and riscv don't have -msoft-float, but all others do.
120 CFLAGS+=        -ffreestanding ${CFLAGS_NO_SIMD}
121 .if ${MACHINE_CPUARCH} == "aarch64"
122 CFLAGS+=        -mgeneral-regs-only -ffixed-x18 -fPIC
123 .elif ${MACHINE_CPUARCH} == "riscv"
124 CFLAGS+=        -march=rv64imac -mabi=lp64 -fPIC
125 CFLAGS.clang+=  -mcmodel=medium
126 CFLAGS.gcc+=    -mcmodel=medany
127 .else
128 CFLAGS+=        -msoft-float
129 .endif
130
131 # -msoft-float seems to be insufficient for powerpcspe
132 .if ${MACHINE_ARCH} == "powerpcspe"
133 CFLAGS+=        -mno-spe
134 .endif
135
136 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
137 CFLAGS+=        -march=i386
138 CFLAGS.gcc+=    -mpreferred-stack-boundary=2
139 .endif
140 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
141 CFLAGS+=        -fPIC -mno-red-zone
142 .endif
143
144 .if ${MACHINE_CPUARCH} == "arm"
145 # Do not generate movt/movw, because the relocation fixup for them does not
146 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
147 # Also, the fpu is not available in a standalone environment.
148 CFLAGS.clang+=  -mno-movt
149 CFLAGS.clang+=  -mfpu=none
150 CFLAGS+=        -fPIC
151 .endif
152
153 # Some RISC-V linkers have support for relaxations, while some (lld) do not
154 # yet. If this is the case we inhibit the compiler from emitting relaxations.
155 .if ${LINKER_FEATURES:Mriscv-relaxations} == ""
156 CFLAGS+=        -mno-relax
157 .endif
158
159 # The boot loader build uses dd status=none, where possible, for reproducible
160 # build output (since performance varies from run to run). Trouble is that
161 # option was recently (10.3) added to FreeBSD and is non-standard. Only use it
162 # when this test succeeds rather than require dd to be a bootstrap tool.
163 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
164 DD=dd ${DD_NOSTATUS}
165
166 .if ${MACHINE_CPUARCH} == "mips"
167 CFLAGS+=        -G0 -fno-pic -mno-abicalls
168 .endif
169
170 .if ${MK_LOADER_FORCE_LE} != "no"
171 .if ${MACHINE_ARCH} == "powerpc64"
172 CFLAGS+=        -mlittle-endian
173 .endif
174 .endif
175
176 #
177 # Have a sensible default
178 #
179 .if ${MK_LOADER_LUA} == "yes"
180 LOADER_DEFAULT_INTERP?=lua
181 .elif ${MK_FORTH} == "yes"
182 LOADER_DEFAULT_INTERP?=4th
183 .else
184 LOADER_DEFAULT_INTERP?=simp
185 .endif
186 LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
187
188 # Make sure we use the machine link we're about to create
189 CFLAGS+=-I.
190
191 all: ${PROG}
192
193 CLEANFILES+= teken_state.h
194 teken.c: teken_state.h
195
196 teken_state.h: ${SYSDIR}/teken/sequences
197         awk -f ${SYSDIR}/teken/gensequences \
198                 ${SYSDIR}/teken/sequences > teken_state.h
199
200 .if !defined(NO_OBJ)
201 _ILINKS=include/machine
202 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
203 _ILINKS+=include/${MACHINE_CPUARCH}
204 .endif
205 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
206 _ILINKS+=include/x86
207 .endif
208 CFLAGS+= -Iinclude
209 CLEANDIRS+= include
210
211 beforedepend: ${_ILINKS}
212 beforebuild: ${_ILINKS}
213
214 # Ensure that the links exist without depending on it when it exists which
215 # causes all the modules to be rebuilt when the directory pointed to changes.
216 .for _link in ${_ILINKS}
217 .if !exists(${.OBJDIR}/${_link})
218 ${OBJS}:       ${_link}
219 .endif # _link exists
220 .endfor
221
222 .NOPATH: ${_ILINKS}
223
224 ${_ILINKS}: .NOMETA
225         @case ${.TARGET:T} in \
226         machine) \
227                 if [ ${DO32:U0} -eq 0 ]; then \
228                         path=${SYSDIR}/${MACHINE}/include ; \
229                 else \
230                         path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
231                 fi ;; \
232         *) \
233                 path=${SYSDIR}/${.TARGET:T}/include ;; \
234         esac ; \
235         case ${.TARGET} in \
236         */*) mkdir -p ${.TARGET:H};; \
237         esac ; \
238         path=`(cd $$path && /bin/pwd)` ; \
239         ${ECHO} ${.TARGET} "->" $$path ; \
240         ln -fhs $$path ${.TARGET}
241 .endif # !NO_OBJ
242 .endif # __BOOT_DEFS_MK__