3 # Set default CPU compile flags and baseline CPUTYPE for each arch. The
4 # compile flags must support the minimum CPU type for each architecture but
5 # may tune support for more advanced processors.
7 .if !defined(CPUTYPE) || empty(CPUTYPE)
9 . if ${MACHINE_CPUARCH} == "aarch64"
11 . elif ${MACHINE_CPUARCH} == "amd64"
12 MACHINE_CPU = amd64 sse2 sse mmx
13 . elif ${MACHINE_CPUARCH} == "arm"
15 . elif ${MACHINE_CPUARCH} == "i386"
17 . elif ${MACHINE_CPUARCH} == "powerpc"
19 . elif ${MACHINE_CPUARCH} == "riscv"
24 # Handle aliases (not documented in make.conf to avoid user confusion
25 # between e.g. i586 and pentium)
27 . if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
28 . if ${CPUTYPE} == "barcelona"
30 . elif ${CPUTYPE} == "skx"
31 CPUTYPE = skylake-avx512
32 . elif ${CPUTYPE} == "core-avx2"
34 . elif ${CPUTYPE} == "core-avx-i"
36 . elif ${CPUTYPE} == "corei7-avx"
38 . elif ${CPUTYPE} == "corei7"
40 . elif ${CPUTYPE} == "slm"
42 . elif ${CPUTYPE} == "atom"
44 . elif ${CPUTYPE} == "core"
47 . if ${MACHINE_CPUARCH} == "amd64"
48 . if ${CPUTYPE} == "prescott"
52 . if ${CPUTYPE} == "k7"
54 . elif ${CPUTYPE} == "p4"
56 . elif ${CPUTYPE} == "p4m"
58 . elif ${CPUTYPE} == "p3"
60 . elif ${CPUTYPE} == "p3m"
62 . elif ${CPUTYPE} == "p-m"
64 . elif ${CPUTYPE} == "p2"
66 . elif ${CPUTYPE} == "i686"
68 . elif ${CPUTYPE} == "i586/mmx"
70 . elif ${CPUTYPE} == "i586"
76 ###############################################################################
77 # Logic to set up correct gcc optimization flag. This must be included
78 # after /etc/make.conf so it can react to the local value of CPUTYPE
79 # defined therein. Consult:
80 # http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
81 # http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
82 # http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
83 # http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html
85 . if ${MACHINE_CPUARCH} == "i386"
86 . if ${CPUTYPE} == "crusoe"
87 _CPUCFLAGS = -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
88 . elif ${CPUTYPE} == "k5"
89 _CPUCFLAGS = -march=pentium
90 . elif ${CPUTYPE} == "c7"
91 _CPUCFLAGS = -march=c3-2
93 _CPUCFLAGS = -march=${CPUTYPE}
95 . elif ${MACHINE_CPUARCH} == "amd64"
96 _CPUCFLAGS = -march=${CPUTYPE}
97 . elif ${MACHINE_CPUARCH} == "arm"
98 . if ${CPUTYPE} == "xscale"
99 #XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
100 #_CPUCFLAGS = -mcpu=xscale
101 _CPUCFLAGS = -march=armv5te -D__XSCALE__
102 . elif ${CPUTYPE:M*soft*} != ""
103 _CPUCFLAGS = -mfloat-abi=softfp
104 . elif ${CPUTYPE} == "cortexa"
105 _CPUCFLAGS = -march=armv7 -mfpu=vfp
106 . elif ${CPUTYPE:Marmv[4567]*} != ""
107 # Handle all the armvX types that FreeBSD runs:
108 # armv4, armv4t, armv5, armv5te, armv6, armv6t2, armv7, armv7-a, armv7ve
109 # they require -march=. All the others require -mcpu=.
110 _CPUCFLAGS = -march=${CPUTYPE}
112 # Common values for FreeBSD
113 # arm: (any arm v4 or v5 processor you are targeting)
114 # arm920t, arm926ej-s, marvell-pj4, fa526, fa626,
115 # fa606te, fa626te, fa726te
118 # armv7: generic-armv7-a, cortex-a5, cortex-a7, cortex-a8, cortex-a9,
119 # cortex-a12, cortex-a15, cortex-a17
120 # cortex-a53, cortex-a57, cortex-a72,
122 _CPUCFLAGS = -mcpu=${CPUTYPE}
124 . elif ${MACHINE_ARCH} == "powerpc"
125 . if ${CPUTYPE} == "e500"
126 _CPUCFLAGS = -Wa,-me500 -msoft-float
128 _CPUCFLAGS = -mcpu=${CPUTYPE} -mno-powerpc64
130 . elif ${MACHINE_ARCH:Mpowerpc64*} != ""
131 _CPUCFLAGS = -mcpu=${CPUTYPE}
132 . elif ${MACHINE_CPUARCH} == "aarch64"
133 . if ${CPUTYPE:Marmv*} != ""
134 # Use -march when the CPU type is an architecture value, e.g. armv8.1-a
135 _CPUCFLAGS = -march=${CPUTYPE}
137 # Otherwise assume we have a CPU type
138 _CPUCFLAGS = -mcpu=${CPUTYPE}
142 # Set up the list of CPU features based on the CPU type. This is an
143 # unordered list to make it easy for client makefiles to test for the
144 # presence of a CPU feature.
147 . if ${MACHINE_CPUARCH} == "i386"
148 . if ${CPUTYPE} == "znver3" || ${CPUTYPE} == "znver2" || \
149 ${CPUTYPE} == "znver1"
150 MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
151 . elif ${CPUTYPE} == "bdver4"
152 MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
153 . elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2" || \
154 ${CPUTYPE} == "bdver1"
155 MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
156 . elif ${CPUTYPE} == "btver2"
157 MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
158 . elif ${CPUTYPE} == "btver1"
159 MACHINE_CPU = ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
160 . elif ${CPUTYPE} == "amdfam10"
161 MACHINE_CPU = athlon-xp athlon k7 3dnow sse4a sse3 sse2 sse mmx k6 k5 i586
162 . elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3"
163 MACHINE_CPU = athlon-xp athlon k7 3dnow sse3 sse2 sse mmx k6 k5 i586
164 . elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
165 ${CPUTYPE} == "athlon-fx"
166 MACHINE_CPU = athlon-xp athlon k7 3dnow sse2 sse mmx k6 k5 i586
167 . elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
168 ${CPUTYPE} == "athlon-4"
169 MACHINE_CPU = athlon-xp athlon k7 3dnow sse mmx k6 k5 i586
170 . elif ${CPUTYPE} == "athlon" || ${CPUTYPE} == "athlon-tbird"
171 MACHINE_CPU = athlon k7 3dnow mmx k6 k5 i586
172 . elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2" || ${CPUTYPE} == "geode"
173 MACHINE_CPU = 3dnow mmx k6 k5 i586
174 . elif ${CPUTYPE} == "k6"
175 MACHINE_CPU = mmx k6 k5 i586
176 . elif ${CPUTYPE} == "k5"
177 MACHINE_CPU = k5 i586
178 . elif ${CPUTYPE} == "sapphirerapids" || ${CPUTYPE} == "tigerlake" || \
179 ${CPUTYPE} == "cooperlake" || ${CPUTYPE} == "cascadelake" || \
180 ${CPUTYPE} == "icelake-server" || ${CPUTYPE} == "icelake-client" || \
181 ${CPUTYPE} == "cannonlake" || ${CPUTYPE} == "knm" || \
182 ${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl" || \
183 ${CPUTYPE} == "x86-64-v4"
184 MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
185 . elif ${CPUTYPE} == "alderlake" || ${CPUTYPE} == "skylake" || \
186 ${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell" || \
187 ${CPUTYPE} == "x86-64-v3"
188 MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
189 . elif ${CPUTYPE} == "ivybridge" || ${CPUTYPE} == "sandybridge"
190 MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
191 . elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
192 ${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
193 ${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont" || \
194 ${CPUTYPE} == "x86-64-v2"
195 MACHINE_CPU = sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
196 . elif ${CPUTYPE} == "penryn"
197 MACHINE_CPU = sse41 ssse3 sse3 sse2 sse i686 mmx i586
198 . elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
199 MACHINE_CPU = ssse3 sse3 sse2 sse i686 mmx i586
200 . elif ${CPUTYPE} == "yonah" || ${CPUTYPE} == "prescott"
201 MACHINE_CPU = sse3 sse2 sse i686 mmx i586
202 . elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m" || \
203 ${CPUTYPE} == "pentium-m" || ${CPUTYPE} == "x86-64"
204 MACHINE_CPU = sse2 sse i686 mmx i586
205 . elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m"
206 MACHINE_CPU = sse i686 mmx i586
207 . elif ${CPUTYPE} == "pentium2"
208 MACHINE_CPU = i686 mmx i586
209 . elif ${CPUTYPE} == "pentiumpro"
210 MACHINE_CPU = i686 i586
211 . elif ${CPUTYPE} == "pentium-mmx"
212 MACHINE_CPU = mmx i586
213 . elif ${CPUTYPE} == "pentium"
215 . elif ${CPUTYPE} == "c7"
216 MACHINE_CPU = sse3 sse2 sse i686 mmx i586
217 . elif ${CPUTYPE} == "c3-2"
218 MACHINE_CPU = sse i686 mmx i586
219 . elif ${CPUTYPE} == "c3"
220 MACHINE_CPU = 3dnow mmx i586
221 . elif ${CPUTYPE} == "winchip2"
222 MACHINE_CPU = 3dnow mmx
223 . elif ${CPUTYPE} == "winchip-c6"
228 . elif ${MACHINE_CPUARCH} == "amd64"
229 . if ${CPUTYPE} == "znver3" || ${CPUTYPE} == "znver2" || \
230 ${CPUTYPE} == "znver1"
231 MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3
232 . elif ${CPUTYPE} == "bdver4"
233 MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3
234 . elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2" || \
235 ${CPUTYPE} == "bdver1"
236 MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3
237 . elif ${CPUTYPE} == "btver2"
238 MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3
239 . elif ${CPUTYPE} == "btver1"
240 MACHINE_CPU = ssse3 sse4a sse3
241 . elif ${CPUTYPE} == "amdfam10"
242 MACHINE_CPU = k8 3dnow sse4a sse3
243 . elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3" || \
244 ${CPUTYPE} == "k8-sse3"
245 MACHINE_CPU = k8 3dnow sse3
246 . elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
247 ${CPUTYPE} == "athlon-fx" || ${CPUTYPE} == "k8"
248 MACHINE_CPU = k8 3dnow
249 . elif ${CPUTYPE} == "sapphirerapids" || ${CPUTYPE} == "tigerlake" || \
250 ${CPUTYPE} == "cooperlake" || ${CPUTYPE} == "cascadelake" || \
251 ${CPUTYPE} == "icelake-server" || ${CPUTYPE} == "icelake-client" || \
252 ${CPUTYPE} == "cannonlake" || ${CPUTYPE} == "knm" || \
253 ${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl" || \
254 ${CPUTYPE} == "x86-64-v4"
255 MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3
256 . elif ${CPUTYPE} == "alderlake" || ${CPUTYPE} == "skylake" || \
257 ${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell" || \
258 ${CPUTYPE} == "x86-64-v3"
259 MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3
260 . elif ${CPUTYPE} == "ivybridge" || ${CPUTYPE} == "sandybridge"
261 MACHINE_CPU = avx sse42 sse41 ssse3 sse3
262 . elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
263 ${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
264 ${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont" || \
265 ${CPUTYPE} == "x86-64-v2"
266 MACHINE_CPU = sse42 sse41 ssse3 sse3
267 . elif ${CPUTYPE} == "penryn"
268 MACHINE_CPU = sse41 ssse3 sse3
269 . elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
270 MACHINE_CPU = ssse3 sse3
271 . elif ${CPUTYPE} == "nocona"
274 MACHINE_CPU += amd64 sse2 sse mmx
276 . elif ${MACHINE_ARCH} == "powerpc"
277 . if ${CPUTYPE} == "e500"
278 MACHINE_CPU = booke softfp
281 . elif ${MACHINE_CPUARCH} == "riscv"
287 .if ${MACHINE_CPUARCH} == "arm"
289 . if ${MACHINE_ARCH:Marmv6*} != ""
292 . if ${MACHINE_ARCH:Marmv7*} != ""
295 # armv6 and armv7 are a hybrid. It can use the softfp ABI, but doesn't emulate
296 # floating point in the general case, so don't define softfp for it at this
297 # time. arm is pure softfp, so define it for them.
298 . if ${MACHINE_ARCH:Marmv[67]*} == ""
299 MACHINE_CPU += softfp
301 # Normally armv6 and armv7 are hard float ABI from FreeBSD 11 onwards. However
302 # when CPUTYPE has 'soft' in it, we use the soft-float ABI to allow building of
303 # soft-float ABI libraries. In this case, we have to add the -mfloat-abi=softfp
305 . if ${MACHINE_ARCH:Marmv[67]*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
306 # Needs to be CFLAGS not _CPUCFLAGS because it's needed for the ABI
307 # not a nice optimization. Please note: softfp ABI uses hardware floating
308 # instructions, but passes arguments to function calls in integer regsiters.
309 # -mfloat-abi=soft is full software floating point, but is not currently
310 # supported. softfp support in FreeBSD may disappear in FreeBSD 13.0 since
311 # it was a transition tool from FreeBSD 10 to 11 and is a bit of an odd duck.
312 CFLAGS += -mfloat-abi=softfp
316 .if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpcspe"
317 LDFLAGS.bfd+= -Wl,--secure-plt
320 .if ${MACHINE_ARCH} == "powerpcspe"
321 CFLAGS += -mcpu=8548 -mspe
322 CFLAGS.gcc+= -mabi=spe -mfloat-gprs=double -Wa,-me500
325 .if ${MACHINE_CPUARCH} == "riscv"
326 .if ${MACHINE_ARCH:Mriscv*sf}
327 CFLAGS += -march=rv64imac -mabi=lp64
329 CFLAGS += -march=rv64imafdc -mabi=lp64d
333 # NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
335 .if !defined(NO_CPU_CFLAGS)
336 CFLAGS += ${_CPUCFLAGS}
340 # Prohibit the compiler from emitting SIMD instructions.
341 # These flags are added to CFLAGS in areas where the extra context-switch
342 # cost outweighs the advantages of SIMD instructions.
345 # Setting -mno-mmx implies -mno-3dnow
346 # Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3 and -mfpmath=387
349 # Setting -mno-mmx implies -mno-3dnow and -mno-3dnowa
350 # Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3, -mno-sse41 and
352 # (-mfpmath= is not supported)
354 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
355 CFLAGS_NO_SIMD.clang= -mno-avx -mno-avx2
356 CFLAGS_NO_SIMD= -mno-mmx -mno-sse
358 CFLAGS_NO_SIMD += ${CFLAGS_NO_SIMD.${COMPILER_TYPE}}
360 # Add in any architecture-specific CFLAGS.
361 # These come from make.conf or the command line or the environment.
362 CFLAGS += ${CFLAGS.${MACHINE_ARCH}}
363 CXXFLAGS += ${CXXFLAGS.${MACHINE_ARCH}}
366 # MACHINE_ABI is a list of properties about the ABI used for MACHINE_ARCH.
367 # The following properties are indicated with one of the follow values:
369 # Byte order: big-endian, little-endian
370 # Floating point ABI: soft-float, hard-float
371 # Size of long (size_t, etc): long32, long64
372 # Pointer type: ptr32, ptr64
373 # Size of time_t: time32, time64
375 .if (${MACHINE} == "arm" && (defined(CPUTYPE) && ${CPUTYPE:M*soft*})) || \
376 (${MACHINE_ARCH} == "powerpc" && (defined(CPUTYPE) && ${CPUTYPE} == "e500")) || \
377 ${MACHINE_ARCH:Mriscv*sf*}
378 MACHINE_ABI+= soft-float
380 MACHINE_ABI+= hard-float
382 # Currently all 64-bit architectures include 64 in their name (see arch(7)).
383 .if ${MACHINE_ARCH:M*64*}
388 .if ${MACHINE_ABI:Mlong64}
393 .if ${MACHINE_ARCH} == "i386"
398 .if ${MACHINE_ARCH:Mpowerpc*} && !${MACHINE_ARCH:M*le}
399 MACHINE_ABI+= big-endian
401 MACHINE_ABI+= little-endian