xref: /freebsd/share/mk/bsd.cpu.mk (revision 6419bb52) 
1# $FreeBSD$
2
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.
6
7.if !defined(CPUTYPE) || empty(CPUTYPE)
8_CPUCFLAGS =
9. if ${MACHINE_CPUARCH} == "aarch64"
10MACHINE_CPU = arm64
11. elif ${MACHINE_CPUARCH} == "amd64"
12MACHINE_CPU = amd64 sse2 sse mmx
13. elif ${MACHINE_CPUARCH} == "arm"
14MACHINE_CPU = arm
15. elif ${MACHINE_CPUARCH} == "i386"
16MACHINE_CPU = i486
17. elif ${MACHINE_CPUARCH} == "mips"
18MACHINE_CPU = mips
19. elif ${MACHINE_CPUARCH} == "powerpc"
20MACHINE_CPU = aim
21. elif ${MACHINE_CPUARCH} == "riscv"
22MACHINE_CPU = riscv
23. endif
24.else
25
26# Handle aliases (not documented in make.conf to avoid user confusion
27# between e.g. i586 and pentium)
28
29. if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
30.  if ${CPUTYPE} == "barcelona"
31CPUTYPE = amdfam10
32.  elif ${CPUTYPE} == "skx"
33CPUTYPE = skylake-avx512
34.  elif ${CPUTYPE} == "core-avx2"
35CPUTYPE = haswell
36.  elif ${CPUTYPE} == "core-avx-i"
37CPUTYPE = ivybridge
38.  elif ${CPUTYPE} == "corei7-avx"
39CPUTYPE = sandybridge
40.  elif ${CPUTYPE} == "corei7"
41CPUTYPE = nehalem
42.  elif ${CPUTYPE} == "slm"
43CPUTYPE = silvermont
44.  elif ${CPUTYPE} == "atom"
45CPUTYPE = bonnell
46.  elif ${CPUTYPE} == "core"
47CPUTYPE = prescott
48.  endif
49.  if ${MACHINE_CPUARCH} == "amd64"
50.   if ${CPUTYPE} == "prescott"
51CPUTYPE = nocona
52.   endif
53.  else
54.   if ${CPUTYPE} == "k7"
55CPUTYPE = athlon
56.   elif ${CPUTYPE} == "p4"
57CPUTYPE = pentium4
58.   elif ${CPUTYPE} == "p4m"
59CPUTYPE = pentium4m
60.   elif ${CPUTYPE} == "p3"
61CPUTYPE = pentium3
62.   elif ${CPUTYPE} == "p3m"
63CPUTYPE = pentium3m
64.   elif ${CPUTYPE} == "p-m"
65CPUTYPE = pentium-m
66.   elif ${CPUTYPE} == "p2"
67CPUTYPE = pentium2
68.   elif ${CPUTYPE} == "i686"
69CPUTYPE = pentiumpro
70.   elif ${CPUTYPE} == "i586/mmx"
71CPUTYPE = pentium-mmx
72.   elif ${CPUTYPE} == "i586"
73CPUTYPE = pentium
74.   endif
75.  endif
76. endif
77
78###############################################################################
79# Logic to set up correct gcc optimization flag.  This must be included
80# after /etc/make.conf so it can react to the local value of CPUTYPE
81# defined therein.  Consult:
82#	http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
83#	http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
84#	http://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html
85#	http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
86#	http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html
87
88. if ${MACHINE_CPUARCH} == "i386"
89.  if ${CPUTYPE} == "crusoe"
90_CPUCFLAGS = -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
91.  elif ${CPUTYPE} == "k5"
92_CPUCFLAGS = -march=pentium
93.  elif ${CPUTYPE} == "c7"
94_CPUCFLAGS = -march=c3-2
95.  else
96_CPUCFLAGS = -march=${CPUTYPE}
97.  endif
98. elif ${MACHINE_CPUARCH} == "amd64"
99_CPUCFLAGS = -march=${CPUTYPE}
100. elif ${MACHINE_CPUARCH} == "arm"
101.  if ${CPUTYPE} == "xscale"
102#XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
103#_CPUCFLAGS = -mcpu=xscale
104_CPUCFLAGS = -march=armv5te -D__XSCALE__
105.  elif ${CPUTYPE:M*soft*} != ""
106_CPUCFLAGS = -mfloat-abi=softfp
107.  elif ${CPUTYPE} == "cortexa"
108_CPUCFLAGS = -march=armv7 -mfpu=vfp
109.  elif ${CPUTYPE:Marmv[4567]*} != ""
110# Handle all the armvX types that FreeBSD runs:
111#	armv4, armv4t, armv5, armv5te, armv6, armv6t2, armv7, armv7-a, armv7ve
112# they require -march=. All the others require -mcpu=.
113_CPUCFLAGS = -march=${CPUTYPE}
114.  else
115# Common values for FreeBSD
116# arm: (any arm v4 or v5 processor you are targeting)
117#	arm920t, arm926ej-s, marvell-pj4, fa526, fa626,
118#	fa606te, fa626te, fa726te
119# armv6: (any arm v7 or v8 processor you are targeting and the arm1176jzf-s)
120# 	arm1176jzf-s, generic-armv7-a, cortex-a5, cortex-a7, cortex-a8,
121#	cortex-a9, cortex-a12, cortex-a15, cortex-a17, cortex-a53, cortex-a57,
122#	cortex-a72, exynos-m1
123_CPUCFLAGS = -mcpu=${CPUTYPE}
124. endif
125. elif ${MACHINE_ARCH} == "powerpc"
126.  if ${CPUTYPE} == "e500"
127_CPUCFLAGS = -Wa,-me500 -msoft-float
128.  else
129_CPUCFLAGS = -mcpu=${CPUTYPE} -mno-powerpc64
130.  endif
131. elif ${MACHINE_ARCH} == "powerpc64"
132_CPUCFLAGS = -mcpu=${CPUTYPE}
133. elif ${MACHINE_CPUARCH} == "mips"
134# mips[1234], mips32, mips64, and all later releases need to have mips
135# preserved (releases later than r2 require external toolchain)
136.  if ${CPUTYPE:Mmips32*} != "" || ${CPUTYPE:Mmips64*} != "" || \
137	${CPUTYPE:Mmips[1234]} != ""
138_CPUCFLAGS = -march=${CPUTYPE}
139. else
140# Default -march to the CPUTYPE passed in, with mips stripped off so we
141# accept either mips4kc or 4kc, mostly for historical reasons
142# Typical values for cores:
143#	4kc, 24kc, 34kc, 74kc, 1004kc, octeon, octeon+, octeon2, octeon3,
144#	sb1, xlp, xlr
145_CPUCFLAGS = -march=${CPUTYPE:S/^mips//}
146. endif
147. elif ${MACHINE_CPUARCH} == "aarch64"
148_CPUCFLAGS = -mcpu=${CPUTYPE}
149. endif
150
151# Set up the list of CPU features based on the CPU type.  This is an
152# unordered list to make it easy for client makefiles to test for the
153# presence of a CPU feature.
154
155########## i386
156. if ${MACHINE_CPUARCH} == "i386"
157.  if ${CPUTYPE} == "znver2" || ${CPUTYPE} == "znver1"
158MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
159.  elif ${CPUTYPE} == "bdver4"
160MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
161.  elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2" || \
162    ${CPUTYPE} == "bdver1"
163MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
164.  elif ${CPUTYPE} == "btver2"
165MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
166.  elif ${CPUTYPE} == "btver1"
167MACHINE_CPU = ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
168.  elif ${CPUTYPE} == "amdfam10"
169MACHINE_CPU = athlon-xp athlon k7 3dnow sse4a sse3 sse2 sse mmx k6 k5 i586
170.  elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3"
171MACHINE_CPU = athlon-xp athlon k7 3dnow sse3 sse2 sse mmx k6 k5 i586
172.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
173    ${CPUTYPE} == "athlon-fx"
174MACHINE_CPU = athlon-xp athlon k7 3dnow sse2 sse mmx k6 k5 i586
175.  elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
176    ${CPUTYPE} == "athlon-4"
177MACHINE_CPU = athlon-xp athlon k7 3dnow sse mmx k6 k5 i586
178.  elif ${CPUTYPE} == "athlon" || ${CPUTYPE} == "athlon-tbird"
179MACHINE_CPU = athlon k7 3dnow mmx k6 k5 i586
180.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2" || ${CPUTYPE} == "geode"
181MACHINE_CPU = 3dnow mmx k6 k5 i586
182.  elif ${CPUTYPE} == "k6"
183MACHINE_CPU = mmx k6 k5 i586
184.  elif ${CPUTYPE} == "k5"
185MACHINE_CPU = k5 i586
186.  elif ${CPUTYPE} == "tigerlake" || ${CPUTYPE} == "cooperlake" || \
187    ${CPUTYPE} == "cascadelake" || ${CPUTYPE} == "icelake-server" || \
188    ${CPUTYPE} == "icelake-client" || ${CPUTYPE} == "cannonlake" || \
189    ${CPUTYPE} == "knm" || ${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl"
190MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
191.  elif ${CPUTYPE} == "skylake" || ${CPUTYPE} == "broadwell" || \
192    ${CPUTYPE} == "haswell"
193MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
194.  elif ${CPUTYPE} == "ivybridge" || ${CPUTYPE} == "sandybridge"
195MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
196.  elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
197    ${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
198    ${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont"
199MACHINE_CPU = sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
200.  elif ${CPUTYPE} == "penryn"
201MACHINE_CPU = sse41 ssse3 sse3 sse2 sse i686 mmx i586
202.  elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
203MACHINE_CPU = ssse3 sse3 sse2 sse i686 mmx i586
204.  elif ${CPUTYPE} == "yonah" || ${CPUTYPE} == "prescott"
205MACHINE_CPU = sse3 sse2 sse i686 mmx i586
206.  elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m" || \
207    ${CPUTYPE} == "pentium-m"
208MACHINE_CPU = sse2 sse i686 mmx i586
209.  elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m"
210MACHINE_CPU = sse i686 mmx i586
211.  elif ${CPUTYPE} == "pentium2"
212MACHINE_CPU = i686 mmx i586
213.  elif ${CPUTYPE} == "pentiumpro"
214MACHINE_CPU = i686 i586
215.  elif ${CPUTYPE} == "pentium-mmx"
216MACHINE_CPU = mmx i586
217.  elif ${CPUTYPE} == "pentium"
218MACHINE_CPU = i586
219.  elif ${CPUTYPE} == "c7"
220MACHINE_CPU = sse3 sse2 sse i686 mmx i586
221.  elif ${CPUTYPE} == "c3-2"
222MACHINE_CPU = sse i686 mmx i586
223.  elif ${CPUTYPE} == "c3"
224MACHINE_CPU = 3dnow mmx i586
225.  elif ${CPUTYPE} == "winchip2"
226MACHINE_CPU = 3dnow mmx
227.  elif ${CPUTYPE} == "winchip-c6"
228MACHINE_CPU = mmx
229.  endif
230MACHINE_CPU += i486
231########## amd64
232. elif ${MACHINE_CPUARCH} == "amd64"
233.  if ${CPUTYPE} == "znver2" || ${CPUTYPE} == "znver1"
234MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse4a sse3
235.  elif ${CPUTYPE} == "bdver4"
236MACHINE_CPU = xop avx2 avx sse42 sse41 ssse3 sse4a sse3
237.  elif ${CPUTYPE} == "bdver3" || ${CPUTYPE} == "bdver2" || \
238    ${CPUTYPE} == "bdver1"
239MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3
240.  elif ${CPUTYPE} == "btver2"
241MACHINE_CPU = avx sse42 sse41 ssse3 sse4a sse3
242.  elif ${CPUTYPE} == "btver1"
243MACHINE_CPU = ssse3 sse4a sse3
244.  elif ${CPUTYPE} == "amdfam10"
245MACHINE_CPU = k8 3dnow sse4a sse3
246.  elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3" || \
247    ${CPUTYPE} == "k8-sse3"
248MACHINE_CPU = k8 3dnow sse3
249.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
250    ${CPUTYPE} == "athlon-fx" || ${CPUTYPE} == "k8"
251MACHINE_CPU = k8 3dnow
252.  elif ${CPUTYPE} == "tigerlake" || ${CPUTYPE} == "cooperlake" || \
253    ${CPUTYPE} == "cascadelake" || ${CPUTYPE} == "icelake-server" || \
254    ${CPUTYPE} == "icelake-client" || ${CPUTYPE} == "cannonlake" || \
255    ${CPUTYPE} == "knm" || ${CPUTYPE} == "skylake-avx512" || ${CPUTYPE} == "knl"
256MACHINE_CPU = avx512 avx2 avx sse42 sse41 ssse3 sse3
257.  elif ${CPUTYPE} == "skylake" || ${CPUTYPE} == "broadwell" || \
258    ${CPUTYPE} == "haswell"
259MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3
260.  elif ${CPUTYPE} == "ivybridge" || ${CPUTYPE} == "sandybridge"
261MACHINE_CPU = avx sse42 sse41 ssse3 sse3
262.  elif ${CPUTYPE} == "tremont" || ${CPUTYPE} == "goldmont-plus" || \
263    ${CPUTYPE} == "goldmont" || ${CPUTYPE} == "westmere" || \
264    ${CPUTYPE} == "nehalem" || ${CPUTYPE} == "silvermont"
265MACHINE_CPU = sse42 sse41 ssse3 sse3
266.  elif ${CPUTYPE} == "penryn"
267MACHINE_CPU = sse41 ssse3 sse3
268.  elif ${CPUTYPE} == "core2" || ${CPUTYPE} == "bonnell"
269MACHINE_CPU = ssse3 sse3
270.  elif ${CPUTYPE} == "nocona"
271MACHINE_CPU = sse3
272.  endif
273MACHINE_CPU += amd64 sse2 sse mmx
274########## Mips
275. elif ${MACHINE_CPUARCH} == "mips"
276MACHINE_CPU = mips
277########## powerpc
278. elif ${MACHINE_ARCH} == "powerpc"
279.  if ${CPUTYPE} == "e500"
280MACHINE_CPU = booke softfp
281.  endif
282########## riscv
283. elif ${MACHINE_CPUARCH} == "riscv"
284MACHINE_CPU = riscv
285. endif
286.endif
287
288.if ${MACHINE_CPUARCH} == "mips"
289CFLAGS += -G0
290AFLAGS+= -${MIPS_ENDIAN} -mabi=${MIPS_ABI}
291CFLAGS+= -${MIPS_ENDIAN} -mabi=${MIPS_ABI}
292LDFLAGS+= -${MIPS_ENDIAN} -mabi=${MIPS_ABI}
293. if ${MACHINE_ARCH:Mmips*el*} != ""
294MIPS_ENDIAN=	EL
295. else
296MIPS_ENDIAN=	EB
297. endif
298. if ${MACHINE_ARCH:Mmips64*} != ""
299MIPS_ABI?=	64
300. elif ${MACHINE_ARCH:Mmipsn32*} != ""
301MIPS_ABI?=	n32
302. else
303MIPS_ABI?=	32
304. endif
305. if ${MACHINE_ARCH:Mmips*hf}
306CFLAGS += -mhard-float
307. else
308CFLAGS += -msoft-float
309. endif
310.endif
311
312########## arm
313.if ${MACHINE_CPUARCH} == "arm"
314MACHINE_CPU += arm
315. if ${MACHINE_ARCH:Marmv6*} != ""
316MACHINE_CPU += armv6
317. endif
318. if ${MACHINE_ARCH:Marmv7*} != ""
319MACHINE_CPU += armv7
320. endif
321# armv6 and armv7 are a hybrid. It can use the softfp ABI, but doesn't emulate
322# floating point in the general case, so don't define softfp for it at this
323# time. arm is pure softfp, so define it for them.
324. if ${MACHINE_ARCH:Marmv[67]*} == ""
325MACHINE_CPU += softfp
326. endif
327# Normally armv6 and armv7 are hard float ABI from FreeBSD 11 onwards. However
328# when CPUTYPE has 'soft' in it, we use the soft-float ABI to allow building of
329# soft-float ABI libraries. In this case, we have to add the -mfloat-abi=softfp
330# to force that.
331. if ${MACHINE_ARCH:Marmv[67]*} && defined(CPUTYPE) && ${CPUTYPE:M*soft*} != ""
332# Needs to be CFLAGS not _CPUCFLAGS because it's needed for the ABI
333# not a nice optimization. Please note: softfp ABI uses hardware floating
334# instructions, but passes arguments to function calls in integer regsiters.
335# -mfloat-abi=soft is full software floating point, but is not currently
336# supported. softfp support in FreeBSD may disappear in FreeBSD 13.0 since
337# it was a transition tool from FreeBSD 10 to 11 and is a bit of an odd duck.
338CFLAGS += -mfloat-abi=softfp
339. endif
340.endif
341
342.if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpcspe"
343LDFLAGS.bfd+= -Wl,--secure-plt
344.endif
345
346.if ${MACHINE_ARCH} == "powerpcspe"
347CFLAGS += -mcpu=8548 -mspe
348CFLAGS.gcc+= -mabi=spe -mfloat-gprs=double -Wa,-me500
349.endif
350
351.if ${MACHINE_CPUARCH} == "riscv"
352.if ${MACHINE_ARCH:Mriscv*sf}
353CFLAGS += -march=rv64imac -mabi=lp64
354.else
355CFLAGS += -march=rv64imafdc -mabi=lp64d
356.endif
357.endif
358
359# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
360
361.if !defined(NO_CPU_CFLAGS)
362CFLAGS += ${_CPUCFLAGS}
363.endif
364
365#
366# Prohibit the compiler from emitting SIMD instructions.
367# These flags are added to CFLAGS in areas where the extra context-switch
368# cost outweighs the advantages of SIMD instructions.
369#
370# gcc:
371# Setting -mno-mmx implies -mno-3dnow
372# Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3 and -mfpmath=387
373#
374# clang:
375# Setting -mno-mmx implies -mno-3dnow and -mno-3dnowa
376# Setting -mno-sse implies -mno-sse2, -mno-sse3, -mno-ssse3, -mno-sse41 and
377# -mno-sse42
378# (-mfpmath= is not supported)
379#
380.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
381CFLAGS_NO_SIMD.clang= -mno-avx -mno-avx2
382CFLAGS_NO_SIMD= -mno-mmx -mno-sse
383.endif
384CFLAGS_NO_SIMD += ${CFLAGS_NO_SIMD.${COMPILER_TYPE}}
385
386# Add in any architecture-specific CFLAGS.
387# These come from make.conf or the command line or the environment.
388CFLAGS += ${CFLAGS.${MACHINE_ARCH}}
389CXXFLAGS += ${CXXFLAGS.${MACHINE_ARCH}}
390
391