bsd.cpu.mk revision 126657 
1# $FreeBSD: head/share/mk/bsd.cpu.mk 126657 2004-03-05 15:59:33Z bde $
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. if ${MACHINE_ARCH} == "i386"
9_CPUCFLAGS =
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"
17_CPUCFLAGS =
18MACHINE_CPU = itanium
19. elif ${MACHINE_ARCH} == "sparc64"
20_CPUCFLAGS =
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} == "pentiumpro"
29CPUTYPE = i686
30.  elif ${CPUTYPE} == "pentium"
31CPUTYPE = i586
32.  elif ${CPUTYPE} == "k7"
33CPUTYPE = athlon
34.  endif
35. endif
36
37# Logic to set up correct gcc optimization flag.  This must be included
38# after /etc/make.conf so it can react to the local value of CPUTYPE
39# defined therein.  Consult:
40#	http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86-64-Options.html
41#	http://gcc.gnu.org/onlinedocs/gcc/DEC-Alpha-Options.html
42#	http://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html
43#	http://gcc.gnu.org/onlinedocs/gcc/RS-6000-and-PowerPC-Options.html
44
45. if ${MACHINE_ARCH} == "i386"
46.  if ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
47    ${CPUTYPE} == "athlon-4" || ${CPUTYPE} == "athlon-tbird" || \
48    ${CPUTYPE} == "athlon"
49_CPUCFLAGS = -march=${CPUTYPE}
50.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2" || ${CPUTYPE} == "k6"
51_CPUCFLAGS = -march=${CPUTYPE}
52.  elif ${CPUTYPE} == "k5"
53_CPUCFLAGS = -march=pentium
54.  elif ${CPUTYPE} == "p4"
55_CPUCFLAGS = -march=pentium4
56.  elif ${CPUTYPE} == "p3"
57_CPUCFLAGS = -march=pentium3
58.  elif ${CPUTYPE} == "p2"
59_CPUCFLAGS = -march=pentium2
60.  elif ${CPUTYPE} == "i686"
61_CPUCFLAGS = -march=pentiumpro
62.  elif ${CPUTYPE} == "i586/mmx"
63_CPUCFLAGS = -march=pentium-mmx
64.  elif ${CPUTYPE} == "i586"
65_CPUCFLAGS = -march=pentium
66.  elif ${CPUTYPE} == "i486"
67_CPUCFLAGS = -march=i486
68.  endif
69. elif ${MACHINE_ARCH} == "alpha"
70.  if ${CPUTYPE} == "ev67"
71_CPUCFLAGS = -mcpu=ev67
72.  elif ${CPUTYPE} == "ev6"
73_CPUCFLAGS = -mcpu=ev6
74.  elif ${CPUTYPE} == "pca56"
75_CPUCFLAGS = -mcpu=pca56
76.  elif ${CPUTYPE} == "ev56"
77_CPUCFLAGS = -mcpu=ev56
78.  elif ${CPUTYPE} == "ev5"
79_CPUCFLAGS = -mcpu=ev5
80.  elif ${CPUTYPE} == "ev45"
81_CPUCFLAGS = -mcpu=ev45
82.  elif ${CPUTYPE} == "ev4"
83_CPUCFLAGS = -mcpu=ev4
84.  endif
85. endif
86
87# Set up the list of CPU features based on the CPU type.  This is an
88# unordered list to make it easy for client makefiles to test for the
89# presence of a CPU feature.
90
91. if ${MACHINE_ARCH} == "i386"
92.  if ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
93    ${CPUTYPE} == "athlon-4"
94MACHINE_CPU = athlon-xp k7 3dnow sse mmx k6 k5 i586 i486 i386
95.  elif ${CPUTYPE} == "athlon" || ${CPUTYPE} == "athlon-tbird"
96MACHINE_CPU = athlon k7 3dnow mmx k6 k5 i586 i486 i386
97.  elif ${CPUTYPE} == "k6-3" || ${CPUTYPE} == "k6-2"
98MACHINE_CPU = 3dnow mmx k6 k5 i586 i486 i386
99.  elif ${CPUTYPE} == "k6"
100MACHINE_CPU = mmx k6 k5 i586 i486 i386
101.  elif ${CPUTYPE} == "k5"
102MACHINE_CPU = k5 i586 i486 i386
103.  elif ${CPUTYPE} == "p4"
104MACHINE_CPU = sse2 sse i686 mmx i586 i486 i386
105.  elif ${CPUTYPE} == "p3"
106MACHINE_CPU = sse i686 mmx i586 i486 i386
107.  elif ${CPUTYPE} == "p2"
108MACHINE_CPU = i686 mmx i586 i486 i386
109.  elif ${CPUTYPE} == "i686"
110MACHINE_CPU = i686 i586 i486 i386
111.  elif ${CPUTYPE} == "i586/mmx"
112MACHINE_CPU = mmx i586 i486 i386
113.  elif ${CPUTYPE} == "i586"
114MACHINE_CPU = i586 i486 i386
115.  elif ${CPUTYPE} == "i486"
116MACHINE_CPU = i486 i386
117.  elif ${CPUTYPE} == "i386"
118MACHINE_CPU = i386
119.  endif
120. elif ${MACHINE_ARCH} == "alpha"
121.  if ${CPUTYPE} == "ev6"
122MACHINE_CPU = ev6 ev56 pca56 ev5 ev45 ev4
123.  elif ${CPUTYPE} == "pca56"
124MACHINE_CPU = pca56 ev56 ev5 ev45 ev4
125.  elif ${CPUTYPE} == "ev56"
126MACHINE_CPU = ev56 ev5 ev45 ev4
127.  elif ${CPUTYPE} == "ev5"
128MACHINE_CPU = ev5 ev45 ev4
129.  elif ${CPUTYPE} == "ev45"
130MACHINE_CPU = ev45 ev4
131.  elif ${CPUTYPE} == "ev4"
132MACHINE_CPU = ev4
133.  endif
134. elif ${MACHINE_ARCH} == "amd64"
135MACHINE_CPU = amd64 sse2 sse
136. elif ${MACHINE_ARCH} == "ia64"
137.  if ${CPUTYPE} == "itanium"
138MACHINE_CPU = itanium
139.  endif
140. endif
141.endif
142
143.if ${MACHINE_ARCH} == "alpha"
144_CPUCFLAGS += -mieee
145.endif
146
147# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk
148
149.if !defined(NO_CPU_CFLAGS)
150CFLAGS += ${_CPUCFLAGS}
151.endif
152