defs.mk revision 332131 
1# $FreeBSD: stable/11/stand/defs.mk 332131 2018-04-06 19:01:08Z kevans $
2
3.include <src.opts.mk>
4
5WARNS?=1
6
7.if !defined(__BOOT_DEFS_MK__)
8__BOOT_DEFS_MK__=${MFILE}
9
10MK_CTF=		no
11MK_SSP=		no
12MK_PROFILE=	no
13MAN=
14.if !defined(PIC)
15NO_PIC=
16INTERNALLIB=
17.endif
18
19BOOTSRC=	${SRCTOP}/stand
20EFISRC=		${BOOTSRC}/efi
21EFIINC=		${EFISRC}/include
22EFIINCMD=	${EFIINC}/${MACHINE}
23FDTSRC=		${BOOTSRC}/fdt
24FICLSRC=	${BOOTSRC}/ficl
25LDRSRC=		${BOOTSRC}/common
26SASRC=		${BOOTSRC}/libsa
27SYSDIR=		${SRCTOP}/sys
28UBOOTSRC=	${BOOTSRC}/uboot
29ZFSSRC=		${BOOTSRC}/zfs
30
31BOOTOBJ=	${OBJTOP}/stand
32
33# BINDIR is where we install
34BINDIR?=	/boot
35
36LIBSA=		${BOOTOBJ}/libsa/libsa.a
37.if ${MACHINE} == "i386"
38LIBSA32=	${LIBSA}
39.else
40LIBSA32=	${BOOTOBJ}/libsa32/libsa32.a
41.endif
42
43# Standard options:
44CFLAGS+=	-nostdinc
45.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
46CFLAGS+=	-I${BOOTOBJ}/libsa32
47.else
48CFLAGS+=	-I${BOOTOBJ}/libsa
49.endif
50CFLAGS+=	-I${SASRC} -D_STANDALONE
51CFLAGS+=	-I${SYSDIR}
52
53# GELI Support, with backward compat hooks (mostly)
54.if defined(HAVE_GELI)
55.if defined(LOADER_NO_GELI_SUPPORT)
56MK_LOADER_GELI=no
57.warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
58.endif
59.if defined(LOADER_GELI_SUPPORT)
60MK_LOADER_GELI=yes
61.warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
62.endif
63.if ${MK_LOADER_GELI} == "yes"
64CFLAGS+=	-DLOADER_GELI_SUPPORT
65CFLAGS+=	-I${BOOTSRC}/geli
66LIBGELIBOOT=	${BOOTOBJ}/geli/libgeliboot.a
67.endif # MK_LOADER_GELI
68.endif # HAVE_GELI
69
70# These should be confined to loader.mk, but can't because uboot/lib
71# also uses it. It's part of loader, but isn't a loader so we can't
72# just include loader.mk
73.if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
74CFLAGS+= -DLOADER_DISK_SUPPORT
75.endif
76
77# Machine specific flags for all builds here
78
79# All PowerPC builds are 32 bit. We have no 64-bit loaders on powerpc
80# or powerpc64.
81.if ${MACHINE_ARCH} == "powerpc64"
82CFLAGS+=	-m32 -mcpu=powerpc
83.endif
84
85# For amd64, there's a bit of mixed bag. Some of the tree (i386, lib*32) is
86# build 32-bit and some 64-bit (lib*, efi). Centralize all the 32-bit magic here
87# and activate it when DO32 is explicitly defined to be 1.
88.if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
89CFLAGS+=	-m32 -mcpu=i386
90# LD_FLAGS is passed directly to ${LD}, not via ${CC}:
91LD_FLAGS+=	-m elf_i386_fbsd
92AFLAGS+=	--32
93.endif
94
95SSP_CFLAGS=
96
97# Add in the no float / no SIMD stuff and announce we're freestanding
98# aarch64 and riscv don't have -msoft-float, but all others do. riscv
99# currently has no /boot/loader, but may soon.
100CFLAGS+=	-ffreestanding ${CFLAGS_NO_SIMD}
101.if ${MACHINE_CPUARCH} == "aarch64"
102CFLAGS+=	-mgeneral-regs-only -fPIC
103.elif ${MACHINE_CPUARCH} == "riscv"
104CFLAGS+=	-march=rv64imac -mabi=lp64
105.else
106CFLAGS+=	-msoft-float
107.endif
108
109.if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
110CFLAGS+=	-march=i386
111CFLAGS.gcc+=	-mpreferred-stack-boundary=2
112.endif
113.if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
114CFLAGS+=	-fPIC -mno-red-zone
115.endif
116
117.if ${MACHINE_CPUARCH} == "arm"
118# Do not generate movt/movw, because the relocation fixup for them does not
119# translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
120# Also, the fpu is not available in a standalone environment.
121.if ${COMPILER_VERSION} < 30800
122CFLAGS.clang+=	-mllvm -arm-use-movt=0
123.else
124CFLAGS.clang+=	-mno-movt
125.endif
126CFLAGS.clang+=  -mfpu=none
127CFLAGS+=	-fPIC
128.endif
129
130# The boot loader build uses dd status=none, where possible, for reproducible
131# build output (since performance varies from run to run). Trouble is that
132# option was recently (10.3) added to FreeBSD and is non-standard. Only use it
133# when this test succeeds rather than require dd to be a bootstrap tool.
134DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
135DD=dd ${DD_NOSTATUS}
136
137.if ${MACHINE_CPUARCH} == "mips"
138CFLAGS+=	-G0 -fno-pic -mno-abicalls
139.endif
140
141.if ${MK_LOADER_FORCE_LE} != "no"
142.if ${MACHINE_ARCH} == "powerpc64"
143CFLAGS+=	-mlittle-endian
144.endif
145.endif
146
147# Make sure we use the machine link we're about to create
148CFLAGS+=-I.
149
150all: ${PROG}
151
152.if !defined(NO_OBJ)
153_ILINKS=machine
154.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
155_ILINKS+=${MACHINE_CPUARCH}
156.endif
157.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
158_ILINKS+=x86
159.endif
160CLEANFILES+=${_ILINKS}
161
162beforedepend: ${_ILINKS}
163beforebuild: ${_ILINKS}
164
165# Ensure that the links exist without depending on it when it exists which
166# causes all the modules to be rebuilt when the directory pointed to changes.
167.for _link in ${_ILINKS}
168.if !exists(${.OBJDIR}/${_link})
169${OBJS}:       ${_link}
170.endif # _link exists
171.endfor
172
173.NOPATH: ${_ILINKS}
174
175${_ILINKS}:
176	@case ${.TARGET} in \
177	machine) \
178		if [ ${DO32:U0} -eq 0 ]; then \
179			path=${SYSDIR}/${MACHINE}/include ; \
180		else \
181			path=${SYSDIR}/${MACHINE:C/amd64/i386/}/include ; \
182		fi ;; \
183	*) \
184		path=${SYSDIR}/${.TARGET:T}/include ;; \
185	esac ; \
186	path=`(cd $$path && /bin/pwd)` ; \
187	${ECHO} ${.TARGET:T} "->" $$path ; \
188	ln -fhs $$path ${.TARGET:T}
189.endif # !NO_OBJ
190.endif # __BOOT_DEFS_MK__
191