bsd.cpu.mk revision 176776 
1# $FreeBSD: head/share/mk/bsd.cpu.mk 176776 2008-03-03 20:40:20Z raj $
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} == "amd64"
12MACHINE_CPU = amd64 sse2 sse
13. elif ${MACHINE_ARCH} == "ia64"
14MACHINE_CPU = itanium
15. elif ${MACHINE_ARCH} == "powerpc"
16MACHINE_CPU = aim
17. elif ${MACHINE_ARCH} == "sparc64"
18. elif ${MACHINE_ARCH} == "arm"
19MACHINE_CPU = arm
20. endif
21.else
22
23# Handle aliases (not documented in make.conf to avoid user confusion
24# between e.g. i586 and pentium)
25
26. if ${MACHINE_ARCH} == "i386"
27.  if ${CPUTYPE} == "nocona"
28CPUTYPE = prescott
29.  elif ${CPUTYPE} == "core" || ${CPUTYPE} == "core2"
30CPUTYPE = prescott
31.  elif ${CPUTYPE} == "p4"
32CPUTYPE = pentium4
33.  elif ${CPUTYPE} == "p4m"
34CPUTYPE = pentium4m
35.  elif ${CPUTYPE} == "p3"
36CPUTYPE = pentium3
37.  elif ${CPUTYPE} == "p3m"
38CPUTYPE = pentium3m
39.  elif ${CPUTYPE} == "p-m"
40CPUTYPE = pentium-m
41.  elif ${CPUTYPE} == "p2"
42CPUTYPE = pentium2
43.  elif ${CPUTYPE} == "i686"
44CPUTYPE = pentiumpro
45.  elif ${CPUTYPE} == "i586/mmx"
46CPUTYPE = pentium-mmx
47.  elif ${CPUTYPE} == "i586"
48CPUTYPE = pentium
49.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
50     ${CPUTYPE} == "k8"
51CPUTYPE = athlon-mp
52.  elif ${CPUTYPE} == "k7"
53CPUTYPE = athlon
54.  endif
55. elif ${MACHINE_ARCH} == "amd64"
56.  if ${CPUTYPE} == "prescott" || ${CPUTYPE} == "core2"
57CPUTYPE = nocona
58.  endif
59. endif
60
61###############################################################################
62# Logic to set up correct gcc optimization flag.  This must be included
63# after /etc/make.conf so it can react to the local value of CPUTYPE
64# defined therein.  Consult:
65#	http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
66#	http://gcc.gnu.org/onlinedocs/gcc/IA-64-Options.html
67#	http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
68#	http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
69#	http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86-64-Options.html
70
71. if ${MACHINE_ARCH} == "i386"
72.  if ${CPUTYPE} == "crusoe"
73_CPUCFLAGS = -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
74.  elif ${CPUTYPE} == "k5"
75_CPUCFLAGS = -march=pentium
76.  else
77_CPUCFLAGS = -march=${CPUTYPE}
78.  endif # GCC on 'i386'
79.  if ${CPUTYPE} == "crusoe"
80_ICC_CPUCFLAGS = -tpp6 -xiM
81.  elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
82    ${CPUTYPE} == "athlon-4"
83_ICC_CPUCFLAGS = -tpp6 -xiMK
84.  elif ${CPUTYPE} == "athlon-tbird" || ${CPUTYPE} == "athlon"
85_ICC_CPUCFLAGS = -tpp6 -xiM
86.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2" || ${CPUTYPE} == "k6"
87_ICC_CPUCFLAGS = -tpp6 -xi
88.  elif ${CPUTYPE} == "k5"
89_ICC_CPUCFLAGS = -tpp5
90.  elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m"
91_ICC_CPUCFLAGS = -tpp7 -xiMKW
92.  elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m" || \
93     ${CPUTYPE} == "pentium-m"
94_ICC_CPUCFLAGS = -tpp6 -xiMK
95.  elif ${CPUTYPE} == "pentium2" || ${CPUTYPE} == "pentiumpro"
96_ICC_CPUCFLAGS = -tpp6 -xiM
97.  elif ${CPUTYPE} == "pentium-mmx"
98_ICC_CPUCFLAGS = -tpp5 -xM
99.  elif ${CPUTYPE} == "pentium"
100_ICC_CPUCFLAGS = -tpp5
101.  else
102_ICC_CPUCFLAGS =
103.  endif # ICC on 'i386'
104. elif ${MACHINE_ARCH} == "amd64"
105_CPUCFLAGS = -march=${CPUTYPE}
106. elif ${MACHINE_ARCH} == "arm"
107.  if ${CPUTYPE} == "xscale"
108#XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
109#_CPUCFLAGS = -mcpu=xscale
110_CPUCFLAGS = -march=armv5te -D__XSCALE__
111.  else
112_CPUCFLAGS = -mcpu=${CPUTYPE}
113.  endif
114. elif ${MACHINE_ARCH} == "powerpc"
115.  if ${CPUTYPE} == "e500"
116MACHINE_CPU = booke
117_CPUCFLAGS = -Wa,-me500 -msoft-float
118.  endif
119. endif
120
121# Set up the list of CPU features based on the CPU type.  This is an
122# unordered list to make it easy for client makefiles to test for the
123# presence of a CPU feature.
124
125. if ${MACHINE_ARCH} == "i386"
126.  if ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64"
127MACHINE_CPU = athlon-xp athlon k7 3dnow sse2 sse mmx k6 k5 i586 i486 i386
128.  elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
129    ${CPUTYPE} == "athlon-4"
130MACHINE_CPU = athlon-xp athlon k7 3dnow sse mmx k6 k5 i586 i486 i386
131.  elif ${CPUTYPE} == "athlon" || ${CPUTYPE} == "athlon-tbird"
132MACHINE_CPU = athlon k7 3dnow mmx k6 k5 i586 i486 i386
133.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2"
134MACHINE_CPU = 3dnow mmx k6 k5 i586 i486 i386
135.  elif ${CPUTYPE} == "k6"
136MACHINE_CPU = mmx k6 k5 i586 i486 i386
137.  elif ${CPUTYPE} == "k5"
138MACHINE_CPU = k5 i586 i486 i386
139.  elif ${CPUTYPE} == "c3"
140MACHINE_CPU = 3dnow mmx i586 i486 i386
141.  elif ${CPUTYPE} == "c3-2"
142MACHINE_CPU = sse mmx i586 i486 i386
143.  elif ${CPUTYPE} == "c7"
144MACHINE_CPU = sse3 sse2 sse i686 mmx i586 i486 i386
145.  elif ${CPUTYPE} == "prescott"
146MACHINE_CPU = sse3 sse2 sse i686 mmx i586 i486 i386
147.  elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m" || ${CPUTYPE} == "pentium-m"
148MACHINE_CPU = sse2 sse i686 mmx i586 i486 i386
149.  elif ${CPUTYPE} == "pentium3" || ${CPUTYPE} == "pentium3m"
150MACHINE_CPU = sse i686 mmx i586 i486 i386
151.  elif ${CPUTYPE} == "pentium2"
152MACHINE_CPU = i686 mmx i586 i486 i386
153.  elif ${CPUTYPE} == "pentiumpro"
154MACHINE_CPU = i686 i586 i486 i386
155.  elif ${CPUTYPE} == "pentium-mmx"
156MACHINE_CPU = mmx i586 i486 i386
157.  elif ${CPUTYPE} == "pentium"
158MACHINE_CPU = i586 i486 i386
159.  elif ${CPUTYPE} == "i486"
160MACHINE_CPU = i486 i386
161.  elif ${CPUTYPE} == "i386"
162MACHINE_CPU = i386
163.  endif
164. elif ${MACHINE_ARCH} == "amd64"
165.  if ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || ${CPUTYPE} == "k8"
166MACHINE_CPU = k8 3dnow
167.  elif ${CPUTYPE} == "nocona"
168MACHINE_CPU = sse3
169.  endif
170MACHINE_CPU += amd64 sse2 sse mmx
171. elif ${MACHINE_ARCH} == "ia64"
172.  if ${CPUTYPE} == "itanium"
173MACHINE_CPU = itanium
174.  endif
175. endif
176.endif
177
178.if ${MACHINE_ARCH} == "arm" && defined(TARGET_BIG_ENDIAN)
179CFLAGS += -mbig-endian
180LDFLAGS += -mbig-endian
181LD += -EB
182.endif
183
184# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
185
186.if !defined(NO_CPU_CFLAGS)
187. if ${CC} == "icc"
188CFLAGS += ${_ICC_CPUCFLAGS}
189. else
190CFLAGS += ${_CPUCFLAGS}
191. endif
192.endif
193