xref: /freebsd-13-stable/share/mk/bsd.cpu.mk (revision b449894978b56651bc8d2a19b03c4af67e4ec59c) 
1
2# Set default CPU compile flags and baseline CPUTYPE for each arch.  The
3# compile flags must support the minimum CPU type for each architecture but
4# may tune support for more advanced processors.
5
6.if !defined(CPUTYPE) || empty(CPUTYPE)
7_CPUCFLAGS =
8. if ${MACHINE_CPUARCH} == "aarch64"
9MACHINE_CPU = arm64
10. elif ${MACHINE_CPUARCH} == "amd64"
11MACHINE_CPU = amd64 sse2 sse mmx
12. elif ${MACHINE_CPUARCH} == "arm"
13MACHINE_CPU = arm
14. elif ${MACHINE_CPUARCH} == "i386"
15MACHINE_CPU = i486
16. elif ${MACHINE_CPUARCH} == "mips"
17MACHINE_CPU = mips
18. elif ${MACHINE_CPUARCH} == "powerpc"
19MACHINE_CPU = aim
20. elif ${MACHINE_CPUARCH} == "riscv"
21MACHINE_CPU = riscv
22. endif
23.else
24
25# Handle aliases (not documented in make.conf to avoid user confusion
26# between e.g. i586 and pentium)
27
28. if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
29.  if ${CPUTYPE} == "barcelona"
30CPUTYPE = amdfam10
31.  elif ${CPUTYPE} == "skx"
32CPUTYPE = skylake-avx512
33.  elif ${CPUTYPE} == "core-avx2"
34CPUTYPE = haswell
35.  elif ${CPUTYPE} == "core-avx-i"
36CPUTYPE = ivybridge
37.  elif ${CPUTYPE} == "corei7-avx"
38CPUTYPE = sandybridge
39.  elif ${CPUTYPE} == "corei7"
40CPUTYPE = nehalem
41.  elif ${CPUTYPE} == "slm"
42CPUTYPE = silvermont
43.  elif ${CPUTYPE} == "atom"
44CPUTYPE = bonnell
45.  elif ${CPUTYPE} == "core"
46CPUTYPE = prescott
47.  endif
48.  if ${MACHINE_CPUARCH} == "amd64"
49.   if ${CPUTYPE} == "prescott"
50CPUTYPE = nocona
51.   endif
52.  else
53.   if ${CPUTYPE} == "k7"
54CPUTYPE = athlon
55.   elif ${CPUTYPE} == "p4"
56CPUTYPE = pentium4
57.   elif ${CPUTYPE} == "p4m"
58CPUTYPE = pentium4m
59.   elif ${CPUTYPE} == "p3"
60CPUTYPE = pentium3
61.   elif ${CPUTYPE} == "p3m"
62CPUTYPE = pentium3m
63.   elif ${CPUTYPE} == "p-m"
64CPUTYPE = pentium-m
65.   elif ${CPUTYPE} == "p2"
66CPUTYPE = pentium2
67.   elif ${CPUTYPE} == "i686"
68CPUTYPE = pentiumpro
69.   elif ${CPUTYPE} == "i586/mmx"
70CPUTYPE = pentium-mmx
71.   elif ${CPUTYPE} == "i586"
72CPUTYPE = pentium
73.   endif
74.  endif
75. endif
76
77###############################################################################
78# Logic to set up correct gcc optimization flag.  This must be included
79# after /etc/make.conf so it can react to the local value of CPUTYPE
80# defined therein.  Consult:
81#	http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
82#	http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
83#	http://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html
84#	http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
85#	http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html
86
87. if ${MACHINE_CPUARCH} == "i386"
88.  if ${CPUTYPE} == "crusoe"
89_CPUCFLAGS = -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
90.  elif ${CPUTYPE} == "k5"
91_CPUCFLAGS = -march=pentium
92.  elif ${CPUTYPE} == "c7"
93_CPUCFLAGS = -march=c3-2
94.  else
95_CPUCFLAGS = -march=${CPUTYPE}
96.  endif
97. elif ${MACHINE_CPUARCH} == "amd64"
98_CPUCFLAGS = -march=${CPUTYPE}
99. elif ${MACHINE_CPUARCH} == "arm"
100.  if ${CPUTYPE} == "xscale"
101#XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
102#_CPUCFLAGS = -mcpu=xscale
103_CPUCFLAGS = -march=armv5te -D__XSCALE__
104.  elif ${CPUTYPE:M*soft*} != ""
105_CPUCFLAGS = -mfloat-abi=softfp
106.  elif ${CPUTYPE} == "cortexa"
107_CPUCFLAGS = -march=armv7 -mfpu=vfp
108.  elif ${CPUTYPE:Marmv[4567]*} != ""
109# Handle all the armvX types that FreeBSD runs:
110#	armv4, armv4t, armv5, armv5te, armv6, armv6t2, armv7, armv7-a, armv7ve
111# they require -march=. All the others require -mcpu=.
112_CPUCFLAGS = -march=${CPUTYPE}
113.  else
114# Common values for FreeBSD
115# arm: (any arm v4 or v5 processor you are targeting)
116#	arm920t, arm926ej-s, marvell-pj4, fa526, fa626,
117#	fa606te, fa626te, fa726te
118# armv6: (any arm v7 or v8 processor you are targeting and the arm1176jzf-s)
119# 	arm1176jzf-s, generic-armv7-a, cortex-a5, cortex-a7, cortex-a8,
120#	cortex-a9, cortex-a12, cortex-a15, cortex-a17, cortex-a53, cortex-a57,
121#	cortex-a72, exynos-m1
122_CPUCFLAGS = -mcpu=${CPUTYPE}
123. endif
124. elif ${MACHINE_ARCH} == "powerpc"
125.  if ${CPUTYPE} == "e500"
126_CPUCFLAGS = -Wa,-me500 -msoft-float
127.  else
128_CPUCFLAGS = -mcpu=${CPUTYPE} -mno-powerpc64
129.  endif
130. elif ${MACHINE_ARCH:Mpowerpc64*} != ""
131_CPUCFLAGS = -mcpu=${CPUTYPE}
132. elif ${MACHINE_CPUARCH} == "mips"
133# mips[1234], mips32, mips64, and all later releases need to have mips
134# preserved (releases later than r2 require external toolchain)
135.  if ${CPUTYPE:Mmips32*} != "" || ${CPUTYPE:Mmips64*} != "" || \
136	${CPUTYPE:Mmips[1234]} != ""
137_CPUCFLAGS = -march=${CPUTYPE}
138. else
139# Default -march to the CPUTYPE passed in, with mips stripped off so we
140# accept either mips4kc or 4kc, mostly for historical reasons
141# Typical values for cores:
142#	4kc, 24kc, 34kc, 74kc, 1004kc, octeon, octeon+, octeon2, octeon3,
143#	sb1, xlp, xlr
144_CPUCFLAGS = -march=${CPUTYPE:S/^mips//}
145. endif
146. elif ${MACHINE_CPUARCH} == "aarch64"
147.  if ${CPUTYPE:Marmv*} != ""
148# Use -march when the CPU type is an architecture value, e.g. armv8.1-a
149_CPUCFLAGS = -march=${CPUTYPE}
150.  else
151# Otherwise assume we have a CPU type
152_CPUCFLAGS = -mcpu=${CPUTYPE}
153.  endif
154. endif
155
156# Set up the list of CPU features based on the CPU type.  This is an
157# unordered list to make it easy for client makefiles to test for the
158# presence of a CPU feature.
159
160########## i386
161. if ${MACHINE_CPUARCH} == "i386"
162.  if ${CPUTYPE} == "znver4"
163MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
164.  elif ${CPUTYPE} == "znver3" || ${CPUTYPE} == "znver2" || \
165    ${CPUTYPE} == "znver1"
166MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
167.  elif ${CPUTYPE} == "bdver4"
168MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
169.  elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2"
170MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
171.  elif ${CPUTYPE} == "bdver1"
172MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
173.  elif ${CPUTYPE} == "btver2"
174MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586 f16c
175.  elif ${CPUTYPE} == "btver1"
176MACHINE_CPU = ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
177.  elif ${CPUTYPE} == "amdfam10"
178MACHINE_CPU = athlon-xp athlon k7 3dnow sse4a sse3 sse2 sse mmx k6 k5 i586
179.  elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3"
180MACHINE_CPU = athlon-xp athlon k7 3dnow sse3 sse2 sse mmx k6 k5 i586
181.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
182    ${CPUTYPE} == "athlon-fx"
183MACHINE_CPU = athlon-xp athlon k7 3dnow sse2 sse mmx k6 k5 i586
184.  elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
185    ${CPUTYPE} == "athlon-4"
186MACHINE_CPU = athlon-xp athlon k7 3dnow sse mmx k6 k5 i586
187.  elif ${CPUTYPE} == "athlon" || ${CPUTYPE} == "athlon-tbird"
188MACHINE_CPU = athlon k7 3dnow mmx k6 k5 i586
189.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2" || ${CPUTYPE} == "geode"
190MACHINE_CPU = 3dnow mmx k6 k5 i586
191.  elif ${CPUTYPE} == "k6"
192MACHINE_CPU = mmx k6 k5 i586
193.  elif ${CPUTYPE} == "k5"
194MACHINE_CPU = k5 i586
195.  elif ${CPUTYPE} == "sapphirerapids" || ${CPUTYPE} == "tigerlake" || \
196    ${CPUTYPE} == "cooperlake" || ${CPUTYPE} == "cascadelake" || \
197    ${CPUTYPE} == "icelake-server" || ${CPUTYPE} == "icelake-client" || \
198    ${CPUTYPE} == "cannonlake" || ${CPUTYPE} == "knm" || \
199    ${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl" || \
200    ${CPUTYPE} == "x86-64-v4"
201MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586 f16c
202.  elif ${CPUTYPE} == "alderlake" || ${CPUTYPE} == "skylake" || \
203    ${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell" || \
204    ${CPUTYPE} == "x86-64-v3"
205MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586 f16c
206.  elif ${CPUTYPE} == "ivybridge"
207MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586 f16c
208.  elif ${CPUTYPE} == "sandybridge"
209MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
210.  elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
211    ${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
212    ${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont" || \
213    ${CPUTYPE} == "x86-64-v2"
214MACHINE_CPU = sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
215.  elif ${CPUTYPE} == "penryn"
216MACHINE_CPU = sse41 ssse3 sse3 sse2 sse i686 mmx i586
217.  elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
218MACHINE_CPU = ssse3 sse3 sse2 sse i686 mmx i586
219.  elif ${CPUTYPE} == "yonah" || ${CPUTYPE} == "prescott"
220MACHINE_CPU = sse3 sse2 sse i686 mmx i586
221.  elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m" || \
222    ${CPUTYPE} == "pentium-m" || ${CPUTYPE} == "x86-64"
223MACHINE_CPU = sse2 sse i686 mmx i586
224.  elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m"
225MACHINE_CPU = sse i686 mmx i586
226.  elif ${CPUTYPE} == "pentium2"
227MACHINE_CPU = i686 mmx i586
228.  elif ${CPUTYPE} == "pentiumpro"
229MACHINE_CPU = i686 i586
230.  elif ${CPUTYPE} == "pentium-mmx"
231MACHINE_CPU = mmx i586
232.  elif ${CPUTYPE} == "pentium"
233MACHINE_CPU = i586
234.  elif ${CPUTYPE} == "c7"
235MACHINE_CPU = sse3 sse2 sse i686 mmx i586
236.  elif ${CPUTYPE} == "c3-2"
237MACHINE_CPU = sse i686 mmx i586
238.  elif ${CPUTYPE} == "c3"
239MACHINE_CPU = 3dnow mmx i586
240.  elif ${CPUTYPE} == "winchip2"
241MACHINE_CPU = 3dnow mmx
242.  elif ${CPUTYPE} == "winchip-c6"
243MACHINE_CPU = mmx
244.  endif
245MACHINE_CPU += i486
246########## amd64
247. elif ${MACHINE_CPUARCH} == "amd64"
248.  if ${CPUTYPE} == "znver4"
249MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse4a sse3 f16c
250.  elif ${CPUTYPE} == "znver3" || ${CPUTYPE} == "znver2" || \
251    ${CPUTYPE} == "znver1"
252MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3 f16c
253.  elif ${CPUTYPE} == "bdver4"
254MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 f16c
255.  elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2"
256MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 f16c
257.  elif ${CPUTYPE} == "bdver1"
258MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3
259.  elif ${CPUTYPE} == "btver2"
260MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3 f16c
261.  elif ${CPUTYPE} == "btver1"
262MACHINE_CPU = ssse3 sse4a sse3
263.  elif ${CPUTYPE} == "amdfam10"
264MACHINE_CPU = k8 3dnow sse4a sse3
265.  elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3" || \
266    ${CPUTYPE} == "k8-sse3"
267MACHINE_CPU = k8 3dnow sse3
268.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
269    ${CPUTYPE} == "athlon-fx" || ${CPUTYPE} == "k8"
270MACHINE_CPU = k8 3dnow
271.  elif ${CPUTYPE} == "sapphirerapids" || ${CPUTYPE} == "tigerlake" || \
272    ${CPUTYPE} == "cooperlake" || ${CPUTYPE} == "cascadelake" || \
273    ${CPUTYPE} == "icelake-server" || ${CPUTYPE} == "icelake-client" || \
274    ${CPUTYPE} == "cannonlake" || ${CPUTYPE} == "knm" || \
275    ${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl" || \
276    ${CPUTYPE} == "x86-64-v4"
277MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3 f16c
278.  elif ${CPUTYPE} == "alderlake" || ${CPUTYPE} == "skylake" || \
279    ${CPUTYPE} == "broadwell" || ${CPUTYPE} == "haswell" || \
280    ${CPUTYPE} == "x86-64-v3"
281MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 f16c
282.  elif ${CPUTYPE} == "ivybridge"
283MACHINE_CPU = avx sse42 sse41 ssse3 sse3 f16c
284.  elif ${CPUTYPE} == "sandybridge"
285MACHINE_CPU = avx sse42 sse41 ssse3 sse3
286.  elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
287    ${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
288    ${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont" || \
289    ${CPUTYPE} == "x86-64-v2"
290MACHINE_CPU = sse42 sse41 ssse3 sse3
291.  elif ${CPUTYPE} == "penryn"
292MACHINE_CPU = sse41 ssse3 sse3
293.  elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
294MACHINE_CPU = ssse3 sse3
295.  elif ${CPUTYPE} == "nocona"
296MACHINE_CPU = sse3
297.  endif
298MACHINE_CPU += amd64 sse2 sse mmx
299########## Mips
300. elif ${MACHINE_CPUARCH} == "mips"
301MACHINE_CPU = mips
302########## powerpc
303. elif ${MACHINE_ARCH} == "powerpc"
304.  if ${CPUTYPE} == "e500"
305MACHINE_CPU = booke softfp
306.  elif ${CPUTYPE} == "g4"
307MACHINE_CPU = altivec
308.  endif
309. elif ${MACHINE_ARCH} == "powerpc64"
310.  if ${CPUTYPE} == "e5500"
311MACHINE_CPU = booke
312.  elif ${CPUTYPE} == power7
313MACHINE_CPU = altivec vsx
314.  elif ${CPUTYPE} == power8
315MACHINE_CPU = altivec vsx vsx2
316.  elif ${CPUTYPE} == power9
317MACHINE_CPU = altivec vsx vsx2 vsx3
318.  else
319MACHINE_CPU = altivec
320.  endif
321. elif ${MACHINE_ARCH} == "powerpc64le"
322MACHINE_CPU = altivec vsx vsx2
323.  if ${CPUTYPE} == power9
324MACHINE_CPU += vsx3
325.  endif
326########## riscv
327. elif ${MACHINE_CPUARCH} == "riscv"
328MACHINE_CPU = riscv
329. endif
330.endif
331
332.if ${MACHINE_CPUARCH} == "mips"
333CFLAGS += -G0
334AFLAGS+= -${MIPS_ENDIAN} -mabi=${MIPS_ABI}
335CFLAGS+= -${MIPS_ENDIAN} -mabi=${MIPS_ABI}
336LDFLAGS+= -${MIPS_ENDIAN} -mabi=${MIPS_ABI}
337. if ${MACHINE_ARCH:Mmips*el*} != ""
338MIPS_ENDIAN=	EL
339. else
340MIPS_ENDIAN=	EB
341. endif
342. if ${MACHINE_ARCH:Mmips64*} != ""
343MIPS_ABI?=	64
344. elif ${MACHINE_ARCH:Mmipsn32*} != ""
345MIPS_ABI?=	n32
346. else
347MIPS_ABI?=	32
348. endif
349. if ${MACHINE_ARCH:Mmips*hf}
350CFLAGS += -mhard-float
351. else
352CFLAGS += -msoft-float
353. endif
354.endif
355
356########## arm
357.if ${MACHINE_CPUARCH} == "arm"
358MACHINE_CPU += arm
359. if ${MACHINE_ARCH:Marmv6*} != ""
360MACHINE_CPU += armv6
361. endif
362. if ${MACHINE_ARCH:Marmv7*} != ""
363MACHINE_CPU += armv7
364. endif
365# armv6 and armv7 are a hybrid. It can use the softfp ABI, but doesn't emulate
366# floating point in the general case, so don't define softfp for it at this
367# time. arm is pure softfp, so define it for them.
368. if ${MACHINE_ARCH:Marmv[67]*} == ""
369MACHINE_CPU += softfp
370. endif
371# Normally armv6 and armv7 are hard float ABI from FreeBSD 11 onwards. However
372# when CPUTYPE has 'soft' in it, we use the soft-float ABI to allow building of
373# soft-float ABI libraries. In this case, we have to add the -mfloat-abi=softfp
374# to force that.
375. if ${MACHINE_ARCH:Marmv[67]*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
376# Needs to be CFLAGS not _CPUCFLAGS because it's needed for the ABI
377# not a nice optimization. Please note: softfp ABI uses hardware floating
378# instructions, but passes arguments to function calls in integer regsiters.
379# -mfloat-abi=soft is full software floating point, but is not currently
380# supported. softfp support in FreeBSD may disappear in FreeBSD 13.0 since
381# it was a transition tool from FreeBSD 10 to 11 and is a bit of an odd duck.
382CFLAGS += -mfloat-abi=softfp
383. endif
384.endif
385
386.if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpcspe"
387LDFLAGS.bfd+= -Wl,--secure-plt
388.endif
389
390.if ${MACHINE_ARCH} == "powerpcspe"
391CFLAGS += -mcpu=8548 -mspe
392CFLAGS.gcc+= -mabi=spe -mfloat-gprs=double -Wa,-me500
393.endif
394
395.if ${MACHINE_CPUARCH} == "riscv"
396.if ${MACHINE_ARCH:Mriscv*sf}
397CFLAGS += -march=rv64imac -mabi=lp64
398.else
399CFLAGS += -march=rv64imafdc -mabi=lp64d
400.endif
401.endif
402
403# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
404
405.if !defined(NO_CPU_CFLAGS)
406CFLAGS += ${_CPUCFLAGS}
407.endif
408
409#
410# Prohibit the compiler from emitting SIMD instructions.
411# These flags are added to CFLAGS in areas where the extra context-switch
412# cost outweighs the advantages of SIMD instructions.
413#
414# gcc:
415# Setting -mno-mmx implies -mno-3dnow
416# Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3 and -mfpmath=387
417#
418# clang:
419# Setting -mno-mmx implies -mno-3dnow and -mno-3dnowa
420# Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3, -mno-sse41 and
421# -mno-sse42
422# (-mfpmath= is not supported)
423#
424.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
425CFLAGS_NO_SIMD.clang= -mno-avx -mno-avx2
426CFLAGS_NO_SIMD= -mno-mmx -mno-sse
427.endif
428CFLAGS_NO_SIMD += ${CFLAGS_NO_SIMD.${COMPILER_TYPE}}
429
430# Add in any architecture-specific CFLAGS.
431# These come from make.conf or the command line or the environment.
432CFLAGS += ${CFLAGS.${MACHINE_ARCH}}
433CXXFLAGS += ${CXXFLAGS.${MACHINE_ARCH}}
434
435