xref: /freebsd/share/mk/bsd.cpu.mk (revision d056fa046c6a91b90cd98165face0e42a33a5173) 
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_ARCH} == "i386"
10MACHINE_CPU = i486
11. elif ${MACHINE_ARCH} == "alpha"
12_CPUCFLAGS = -mcpu=ev4 -mtune=ev5
13MACHINE_CPU = ev4
14. elif ${MACHINE_ARCH} == "amd64"
15MACHINE_CPU = amd64 sse2 sse
16. elif ${MACHINE_ARCH} == "ia64"
17MACHINE_CPU = itanium
18. elif ${MACHINE_ARCH} == "sparc64"
19. elif ${MACHINE_ARCH} == "arm"
20MACHINE_CPU = arm
21. endif
22.else
23
24# Handle aliases (not documented in make.conf to avoid user confusion
25# between e.g. i586 and pentium)
26
27. if ${MACHINE_ARCH} == "i386"
28.  if ${CPUTYPE} == "nocona"
29CPUTYPE = prescott
30.  elif ${CPUTYPE} == "p4"
31CPUTYPE = pentium4
32.  elif ${CPUTYPE} == "p4m"
33CPUTYPE = pentium4m
34.  elif ${CPUTYPE} == "p3"
35CPUTYPE = pentium3
36.  elif ${CPUTYPE} == "p3m"
37CPUTYPE = pentium3m
38.  elif ${CPUTYPE} == "p-m"
39CPUTYPE = pentium-m
40.  elif ${CPUTYPE} == "p2"
41CPUTYPE = pentium2
42.  elif ${CPUTYPE} == "i686"
43CPUTYPE = pentiumpro
44.  elif ${CPUTYPE} == "i586/mmx"
45CPUTYPE = pentium-mmx
46.  elif ${CPUTYPE} == "i586"
47CPUTYPE = pentium
48.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
49     ${CPUTYPE} == "k8"
50CPUTYPE = athlon-mp
51.  elif ${CPUTYPE} == "k7"
52CPUTYPE = athlon
53.  endif
54. elif ${MACHINE_ARCH} == "amd64"
55.  if ${CPUTYPE} == "prescott"
56CPUTYPE = nocona
57.  endif
58. endif
59
60###############################################################################
61# Logic to set up correct gcc optimization flag.  This must be included
62# after /etc/make.conf so it can react to the local value of CPUTYPE
63# defined therein.  Consult:
64#	http://gcc.gnu.org/onlinedocs/gcc/DEC-Alpha-Options.html
65#	http://gcc.gnu.org/onlinedocs/gcc/IA-64-Options.html
66#	http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
67#	http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
68#	http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86-64-Options.html
69
70. if ${MACHINE_ARCH} == "i386"
71.  if ${CPUTYPE} == "crusoe"
72_CPUCFLAGS = -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
73.  elif ${CPUTYPE} == "k5"
74_CPUCFLAGS = -march=pentium
75.  else
76_CPUCFLAGS = -march=${CPUTYPE}
77.  endif # GCC on 'i386'
78.  if ${CPUTYPE} == "crusoe"
79_ICC_CPUCFLAGS = -tpp6 -xiM
80.  elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
81    ${CPUTYPE} == "athlon-4"
82_ICC_CPUCFLAGS = -tpp6 -xiMK
83.  elif ${CPUTYPE} == "athlon-tbird" || ${CPUTYPE} == "athlon"
84_ICC_CPUCFLAGS = -tpp6 -xiM
85.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2" || ${CPUTYPE} == "k6"
86_ICC_CPUCFLAGS = -tpp6 -xi
87.  elif ${CPUTYPE} == "k5"
88_ICC_CPUCFLAGS = -tpp5
89.  elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m"
90_ICC_CPUCFLAGS = -tpp7 -xiMKW
91.  elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m" || \
92     ${CPUTYPE} == "pentium-m"
93_ICC_CPUCFLAGS = -tpp6 -xiMK
94.  elif ${CPUTYPE} == "pentium2" || ${CPUTYPE} == "pentiumpro"
95_ICC_CPUCFLAGS = -tpp6 -xiM
96.  elif ${CPUTYPE} == "pentium-mmx"
97_ICC_CPUCFLAGS = -tpp5 -xM
98.  elif ${CPUTYPE} == "pentium"
99_ICC_CPUCFLAGS = -tpp5
100.  else
101_ICC_CPUCFLAGS =
102.  endif # ICC on 'i386'
103. elif ${MACHINE_ARCH} == "alpha"
104_CPUCFLAGS = -mcpu=${CPUTYPE}
105. elif ${MACHINE_ARCH} == "amd64"
106_CPUCFLAGS = -march=${CPUTYPE}
107. elif ${MACHINE_ARCH} == "arm"
108.  if ${CPUTYPE} == "xscale"
109#XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
110#_CPUCFLAGS = -mcpu=xscale
111_CPUCFLAGS = -march=armv5te -D__XSCALE__
112.  else
113_CPUCFLAGS = -mcpu=${CPUTYPE}
114.  endif
115. endif
116
117# Set up the list of CPU features based on the CPU type.  This is an
118# unordered list to make it easy for client makefiles to test for the
119# presence of a CPU feature.
120
121. if ${MACHINE_ARCH} == "i386"
122.  if ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64"
123MACHINE_CPU = athlon-xp athlon k7 3dnow sse2 sse mmx k6 k5 i586 i486 i386
124.  elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
125    ${CPUTYPE} == "athlon-4"
126MACHINE_CPU = athlon-xp athlon k7 3dnow sse mmx k6 k5 i586 i486 i386
127.  elif ${CPUTYPE} == "athlon" || ${CPUTYPE} == "athlon-tbird"
128MACHINE_CPU = athlon k7 3dnow mmx k6 k5 i586 i486 i386
129.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2"
130MACHINE_CPU = 3dnow mmx k6 k5 i586 i486 i386
131.  elif ${CPUTYPE} == "k6"
132MACHINE_CPU = mmx k6 k5 i586 i486 i386
133.  elif ${CPUTYPE} == "k5"
134MACHINE_CPU = k5 i586 i486 i386
135.  elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m" || ${CPUTYPE} == "pentium-m"
136MACHINE_CPU = sse2 sse i686 mmx i586 i486 i386
137.  elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m"
138MACHINE_CPU = sse i686 mmx i586 i486 i386
139.  elif ${CPUTYPE} == "pentium2"
140MACHINE_CPU = i686 mmx i586 i486 i386
141.  elif ${CPUTYPE} == "pentiumpro"
142MACHINE_CPU = i686 i586 i486 i386
143.  elif ${CPUTYPE} == "pentium-mmx"
144MACHINE_CPU = mmx i586 i486 i386
145.  elif ${CPUTYPE} == "pentium"
146MACHINE_CPU = i586 i486 i386
147.  elif ${CPUTYPE} == "i486"
148MACHINE_CPU = i486 i386
149.  elif ${CPUTYPE} == "i386"
150MACHINE_CPU = i386
151.  endif
152. elif ${MACHINE_ARCH} == "alpha"
153.  if ${CPUTYPE} == "ev67"
154MACHINE_CPU = ev67 ev6 ev56 pca56 ev5 ev45 ev4
155.  elif ${CPUTYPE} == "ev6"
156MACHINE_CPU = ev6 ev56 pca56 ev5 ev45 ev4
157.  elif ${CPUTYPE} == "pca56"
158MACHINE_CPU = pca56 ev56 ev5 ev45 ev4
159.  elif ${CPUTYPE} == "ev56"
160MACHINE_CPU = ev56 ev5 ev45 ev4
161.  elif ${CPUTYPE} == "ev5"
162MACHINE_CPU = ev5 ev45 ev4
163.  elif ${CPUTYPE} == "ev45"
164MACHINE_CPU = ev45 ev4
165.  elif ${CPUTYPE} == "ev4"
166MACHINE_CPU = ev4
167.  endif
168. elif ${MACHINE_ARCH} == "amd64"
169.  if ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || ${CPUTYPE} == "k8"
170MACHINE_CPU = k8 3dnow
171.  elif ${CPUTYPE} == "nocona"
172MACHINE_CPU = sse3
173.  endif
174MACHINE_CPU += amd64 sse2 sse mmx
175. elif ${MACHINE_ARCH} == "ia64"
176.  if ${CPUTYPE} == "itanium"
177MACHINE_CPU = itanium
178.  endif
179. endif
180.endif
181
182.if ${MACHINE_ARCH} == "alpha"
183_CPUCFLAGS += -mieee
184.endif
185
186# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
187
188.if !defined(NO_CPU_CFLAGS)
189. if ${CC} == "icc"
190CFLAGS += ${_ICC_CPUCFLAGS}
191. else
192CFLAGS += ${_CPUCFLAGS}
193. endif
194.endif
195