xref: /freebsd/stand/defs.mk (revision 1781ad707e1278d05f66038a44652a76a02f8567)
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
10MK_CTF=		no
11MK_SSP=		no
12MK_PROFILE=	no
13MAN=
14.if !defined(PIC)
15NO_PIC=
16INTERNALLIB=
17.endif
18
19.include <src.opts.mk>
20
21WARNS?=		1
22
23BOOTSRC=	${SRCTOP}/stand
24EFISRC=		${BOOTSRC}/efi
25EFIINC=		${EFISRC}/include
26EFIINCMD=	${EFIINC}/${MACHINE}
27FDTSRC=		${BOOTSRC}/fdt
28FICLSRC=	${BOOTSRC}/ficl
29LDRSRC=		${BOOTSRC}/common
30LIBLUASRC=	${BOOTSRC}/liblua
31LUASRC=		${SRCTOP}/contrib/lua/src
32SASRC=		${BOOTSRC}/libsa
33SYSDIR=		${SRCTOP}/sys
34UBOOTSRC=	${BOOTSRC}/uboot
35ZFSSRC=		${SASRC}/zfs
36LIBCSRC=	${SRCTOP}/lib/libc
37
38BOOTOBJ=	${OBJTOP}/stand
39
40# BINDIR is where we install
41BINDIR?=	/boot
42
43LIBSA=		${BOOTOBJ}/libsa/libsa.a
44.if ${MACHINE} == "i386"
45LIBSA32=	${LIBSA}
46.else
47LIBSA32=	${BOOTOBJ}/libsa32/libsa32.a
48.endif
49
50# Standard options:
51CFLAGS+=	-nostdinc
52.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
53CFLAGS+=	-I${BOOTOBJ}/libsa32
54.else
55CFLAGS+=	-I${BOOTOBJ}/libsa
56.endif
57CFLAGS+=	-I${SASRC} -D_STANDALONE
58CFLAGS+=	-I${SYSDIR}
59# Spike the floating point interfaces
60CFLAGS+=	-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.
66CFLAGS.clang+=	-Oz
67CFLAGS.gcc+=	-Os
68CFLAGS+=	-ffunction-sections -fdata-sections
69.endif
70
71# GELI Support, with backward compat hooks (mostly)
72.if defined(LOADER_NO_GELI_SUPPORT)
73MK_LOADER_GELI=no
74.warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
75.endif
76.if defined(LOADER_GELI_SUPPORT)
77MK_LOADER_GELI=yes
78.warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
79.endif
80.if ${MK_LOADER_GELI} == "yes"
81CFLAGS+=	-DLOADER_GELI_SUPPORT
82CFLAGS+=	-I${SASRC}/geli
83.endif # MK_LOADER_GELI
84
85# These should be confined to loader.mk, but can't because uboot/lib
86# also uses it. It's part of loader, but isn't a loader so we can't
87# just include loader.mk
88.if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
89CFLAGS+= -DLOADER_DISK_SUPPORT
90.endif
91
92# Machine specific flags for all builds here
93
94# All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
95# or powerpc64.
96.if ${MACHINE_ARCH} == "powerpc64"
97CFLAGS+=	-m32 -mcpu=powerpc
98.endif
99
100# For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
101# build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
102# and activate it when DO32 is explicitly defined to be 1.
103.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
104CFLAGS+=	-m32
105# LD_FLAGS is passed directly to ${LD}, not via ${CC}:
106LD_FLAGS+=	-m elf_i386_fbsd
107AFLAGS+=	--32
108.endif
109
110SSP_CFLAGS=
111
112# Add in the no float / no SIMD stuff and announce we're freestanding
113# aarch64 and riscv don't have -msoft-float, but all others do. riscv
114# currently has no /boot/loader, but may soon.
115CFLAGS+=	-ffreestanding ${CFLAGS_NO_SIMD}
116.if ${MACHINE_CPUARCH} == "aarch64"
117CFLAGS+=	-mgeneral-regs-only -fPIC
118.elif ${MACHINE_CPUARCH} == "riscv"
119CFLAGS+=	-march=rv64imac -mabi=lp64
120.else
121CFLAGS+=	-msoft-float
122.endif
123
124# -msoft-float seems to be insufficient for powerpcspe
125.if ${MACHINE_ARCH} == "powerpcspe"
126CFLAGS+=	-mno-spe
127.endif
128
129.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
130CFLAGS+=	-march=i386
131CFLAGS.gcc+=	-mpreferred-stack-boundary=2
132.endif
133.if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
134CFLAGS+=	-fPIC -mno-red-zone
135.endif
136
137.if ${MACHINE_CPUARCH} == "arm"
138# Do not generate movt/movw, because the relocation fixup for them does not
139# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
140# Also, the fpu is not available in a standalone environment.
141.if ${COMPILER_VERSION} < 30800
142CFLAGS.clang+=	-mllvm -arm-use-movt=0
143.else
144CFLAGS.clang+=	-mno-movt
145.endif
146CFLAGS.clang+=  -mfpu=none
147CFLAGS+=	-fPIC
148.endif
149
150# The boot loader build uses dd status=none, where possible, for reproducible
151# build output (since performance varies from run to run). Trouble is that
152# option was recently (10.3) added to FreeBSD and is non-standard. Only use it
153# when this test succeeds rather than require dd to be a bootstrap tool.
154DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
155DD=dd ${DD_NOSTATUS}
156
157.if ${MACHINE_CPUARCH} == "mips"
158CFLAGS+=	-G0 -fno-pic -mno-abicalls
159.endif
160
161.if ${MK_LOADER_FORCE_LE} != "no"
162.if ${MACHINE_ARCH} == "powerpc64"
163CFLAGS+=	-mlittle-endian
164.endif
165.endif
166
167#
168# Have a sensible default
169#
170.if ${MK_LOADER_LUA} == "yes"
171LOADER_DEFAULT_INTERP?=lua
172.elif ${MK_FORTH} == "yes"
173LOADER_DEFAULT_INTERP?=4th
174.else
175LOADER_DEFAULT_INTERP?=simp
176.endif
177LOADER_INTERP?=${LOADER_DEFAULT_INTERP}
178
179# Make sure we use the machine link we're about to create
180CFLAGS+=-I.
181
182all: ${PROG}
183
184CLEANFILES+= teken_state.h
185teken.c: teken_state.h
186
187teken_state.h: ${SYSDIR}/teken/sequences
188	awk -f ${SYSDIR}/teken/gensequences \
189		${SYSDIR}/teken/sequences > teken_state.h
190
191.if !defined(NO_OBJ)
192_ILINKS=machine
193.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
194_ILINKS+=${MACHINE_CPUARCH}
195.endif
196.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
197_ILINKS+=x86
198.endif
199CLEANFILES+=${_ILINKS}
200
201beforedepend: ${_ILINKS}
202beforebuild: ${_ILINKS}
203
204# Ensure that the links exist without depending on it when it exists which
205# causes all the modules to be rebuilt when the directory pointed to changes.
206.for _link in ${_ILINKS}
207.if !exists(${.OBJDIR}/${_link})
208${OBJS}:       ${_link}
209.endif # _link exists
210.endfor
211
212.NOPATH: ${_ILINKS}
213
214${_ILINKS}:
215	@case ${.TARGET} in \
216	machine) \
217		if [ ${DO32:U0} -eq 0 ]; then \
218			path=${SYSDIR}/${MACHINE}/include ; \
219		else \
220			path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
221		fi ;; \
222	*) \
223		path=${SYSDIR}/${.TARGET:T}/include ;; \
224	esac ; \
225	path=`(cd $$path && /bin/pwd)` ; \
226	${ECHO} ${.TARGET:T} "->" $$path ; \
227	ln -fhs $$path ${.TARGET:T}
228.endif # !NO_OBJ
229.endif # __BOOT_DEFS_MK__
230