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MFC r329345: Eliminate bsd.stand.mk and -fPIC 32-bit intel builds
[FreeBSD/FreeBSD.git] / stand / defs.mk
1 # $FreeBSD$
2
3 .include <src.opts.mk>
4
5 WARNS?=1
6
7 .if !defined(__BOOT_DEFS_MK__)
8 __BOOT_DEFS_MK__=${MFILE}
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 BOOTSRC=        ${SRCTOP}/stand
20 EFISRC=         ${BOOTSRC}/efi
21 EFIINC=         ${EFISRC}/include
22 EFIINCMD=       ${EFIINC}/${MACHINE}
23 FDTSRC=         ${BOOTSRC}/fdt
24 FICLSRC=        ${BOOTSRC}/ficl
25 LDRSRC=         ${BOOTSRC}/common
26 SASRC=          ${BOOTSRC}/libsa
27 SYSDIR=         ${SRCTOP}/sys
28 UBOOTSRC=       ${BOOTSRC}/uboot
29 ZFSSRC=         ${BOOTSRC}/zfs
30
31 BOOTOBJ=        ${OBJTOP}/stand
32
33 # BINDIR is where we install
34 BINDIR?=        /boot
35
36 LIBSA=          ${BOOTOBJ}/libsa/libsa.a
37 .if ${MACHINE} == "i386"
38 LIBSA32=        ${LIBSA}
39 .else
40 LIBSA32=        ${BOOTOBJ}/libsa32/libsa32.a
41 .endif
42
43 # Standard options:
44 CFLAGS+=        -nostdinc
45 .if ${MACHINE_ARCH} == "amd64" && ${DO32:U0} == 1
46 CFLAGS+=        -I${BOOTOBJ}/libsa32
47 .else
48 CFLAGS+=        -I${BOOTOBJ}/libsa
49 .endif
50 CFLAGS+=        -I${SASRC} -D_STANDALONE
51 CFLAGS+=        -I${SYSDIR}
52
53 # GELI Support, with backward compat hooks (mostly)
54 .if defined(HAVE_GELI)
55 .if defined(LOADER_NO_GELI_SUPPORT)
56 MK_LOADER_GELI=no
57 .warning "Please move from LOADER_NO_GELI_SUPPORT to WITHOUT_LOADER_GELI"
58 .endif
59 .if defined(LOADER_GELI_SUPPORT)
60 MK_LOADER_GELI=yes
61 .warning "Please move from LOADER_GELI_SUPPORT to WITH_LOADER_GELI"
62 .endif
63 .if ${MK_LOADER_GELI} == "yes"
64 CFLAGS+=        -DLOADER_GELI_SUPPORT
65 CFLAGS+=        -I${BOOTSRC}/geli
66 LIBGELIBOOT=    ${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"
74 CFLAGS+= -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"
82 CFLAGS+=        -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
89 CFLAGS+=        -m32 -mcpu=i386
90 # LD_FLAGS is passed directly to ${LD}, not via ${CC}:
91 LD_FLAGS+=      -m elf_i386_fbsd
92 AFLAGS+=        --32
93 .endif
94
95 SSP_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.
100 CFLAGS+=        -ffreestanding ${CFLAGS_NO_SIMD}
101 .if ${MACHINE_CPUARCH} == "aarch64"
102 CFLAGS+=        -mgeneral-regs-only -fPIC
103 .elif ${MACHINE_CPUARCH} == "riscv"
104 CFLAGS+=        -march=rv64imac -mabi=lp64
105 .else
106 CFLAGS+=        -msoft-float
107 .endif
108
109 .if ${MACHINE_CPUARCH} == "i386" || (${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 1)
110 CFLAGS+=        -march=i386
111 CFLAGS.gcc+=    -mpreferred-stack-boundary=2
112 .endif
113 .if ${MACHINE_CPUARCH} == "amd64" && ${DO32:U0} == 0
114 CFLAGS+=        -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
122 CFLAGS.clang+=  -mllvm -arm-use-movt=0
123 .else
124 CFLAGS.clang+=  -mno-movt
125 .endif
126 CFLAGS.clang+=  -mfpu=none
127 CFLAGS+=        -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.
134 DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
135 DD=dd ${DD_NOSTATUS}
136
137 .if ${MACHINE_CPUARCH} == "mips"
138 CFLAGS+=        -G0 -fno-pic -mno-abicalls
139 .endif
140
141 .if ${MK_LOADER_FORCE_LE} != "no"
142 .if ${MACHINE_ARCH} == "powerpc64"
143 CFLAGS+=        -mlittle-endian
144 .endif
145 .endif
146
147 # Make sure we use the machine link we're about to create
148 CFLAGS+=-I.
149
150 all: ${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" || ${MACHINE_CPUARCH} == "amd64"
158 _ILINKS+=x86
159 .endif
160 CLEANFILES+=${_ILINKS}
161
162 beforedepend: ${_ILINKS}
163 beforebuild: ${_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__