1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
# Copyright (C) 2006 Tobi Vollebregt
# Functions copied from the old build system.
import re, sys
########################################
### platform/cpu detection functions ###
########################################
def platform():
if sys.platform == 'linux2' or sys.platform == 'linux-i386':
print "Detected platform : linux"
detected_platform='linux'
elif sys.platform[:7] == 'freebsd':
print "Detected platform : freebsd (%s)" % sys.platform
print "WARNING: support is incomplete"
detected_platform='freebsd'
elif sys.platform == 'win32':
print "Detected platform : windows"
detected_platform='windows'
elif sys.platform == 'darwin':
print "Detected platform : darwin"
print "WARNING: support is incomplete"
detected_platform='darwin'
print "NOTE: xcode files are available in /trunk/rts/build/xcode"
else:
print "Platform not supported yet, please edit SConstruct file"
detected_platform='unknown'
return detected_platform
# Set gcc_3_4 to false for versions of gcc below 3.4.
def processor(gcc_3_4=True):
print "Detecting processor..."
try:
f = open('/proc/cpuinfo', 'r')
except IOError:
import platform
bits = platform.architecture()[0]
if bits == '32bit':
# default to i686 on 32 bit platforms without /proc/cpuinfo
print " couldn't detect; assuming Pentium Pro or better"
archflags=['-march=i686']
else:
print " couldn't detect"
archflags=[]
return archflags
str = f.readline()
family=""
model=-1
vendor=""
archflags=[]
while str:
if str.startswith("vendor_id"):
if str.find("GenuineTMx86") != -1:
# Transmeta
vendor="GenuineTMx86"
elif str.find("GenuineIntel") != -1:
# Intel
vendor="GenuineIntel"
elif str.find("AuthenticAMD") != -1:
# AMD
vendor="AuthenticAMD"
elif str.startswith("cpu"):
# first re does not do anything more than family = str.strip() in my case
family = re.sub('^[^0-9A-Za-z]*', '', str).strip()
# this is more useful, finds the first block of numbers
family_number = re.findall('[0-9]+', str)[0]
elif str.startswith("model") and str.find("name") == -1:
model = re.sub('^[^0-9]*', '', str).strip()
if vendor == "GenuineTMx86":
if str.startswith("model name"):
if str.find("Transmeta Efficeon") != -1:
# Automatically reorders/realigns when
# converting to VLIW, so no alignment
# saves space without sacrificing speed
print " found Transmeta Efficeon"
archflags=['-march=i686']
if gcc_3_4: archflags+=['-mtune=pentium3']
else: archflags+=['-mcpu=pentium3']
archflags+=['-msse2', '-mfpmath=sse', '-falign-functions=0', '-falign-jumps=0', '-falign-loops=0']
elif vendor == "GenuineIntel":
if str.startswith("model name"):
if str.find("Intel(R) Pentium(R) 4 CPU") != -1:
print " found Intel Pentium 4"
archflags=['-march=pentium4']
elif str.find("Coppermine") != -1:
print " found Intel Celeron (Coppermine)"
archflags=['-march=pentium3']
elif str.find("Pentium III") != -1:
print " found Intel Pentium III"
archflags=['-march=pentium3']
elif str.find("Pentium II") != -1:
print " found Intel Pentium II"
archflags=['-march=pentium2']
elif str.find("Intel(R) Celeron(R) CPU") != -1:
print " found Intel Celeron (Willamette)"
archflags=['-march=pentium4']
elif str.find("Celeron") != -1:
print " found Intel Celeron 1"
archflags=['-march=pentium2']
elif str.find("Intel(R) Pentium(R) M") != -1:
print " found Intel Pentium-M"
if gcc_3_4: archflags=['-march=pentium-m']
else:
print "WARNING: gcc versions below 3.4 don't support -march=pentium-m, using -march=pentium4 instead"
archflags=['-march=pentium4']
elif str.find("Intel(R) Xeon(TM) CPU") != -1:
print " found Intel Xeon w/EM64T"
archflags=['-march=nocona', '-mmmx', '-msse3']
elif vendor == "AuthenticAMD":
if str.startswith("model name"):
if str.find("Duron") != -1:
if model == 7:
print " found AMD Duron Morgan"
archflags=['-march=athlon-xp']
elif model == 3:
print " found AMD Mobile Duron"
archflags=['-march=athlon-tbird']
else:
print " found AMD Duron"
archflags=['-march=athlon-tbird']
elif str.find("Sempron") != -1:
print " found AMD Sempron 64"
if gcc_3_4: archflags=['-march=athlon64']
else:
print "WARNING: gcc versions below 3.4 don't support -march=athlon64, using -march=athlon-4 -msse2 -mfpmath=sse instead"
archflags=['-march=athlon', '-msse2', '-mfpmath=sse']
elif (str.find("Athlon") != -1) or (str.find("Turion") != -1):
if str.find("64") != -1:
print " found AMD64"
if gcc_3_4: archflags=['-march=athlon64']
else:
print "WARNING: gcc versions below 3.4 don't support -march=athlon64, using -march=athlon-4 -msse2 -mfpmath=sse instead"
archflags=['-march=athlon', '-msse2', '-mfpmath=sse']
# maybe this should use int(family_number) rather than family
# i have no way of checking
elif family == 6 and model == 8:
print " found AMD Athlon Thunderbird XP"
archflags=['-march=athlon-xp']
else:
print " found AMD Athlon"
archflags=['-march=athlon']
elif str.find("Opteron") != -1:
print " found AMD Opteron"
if gcc_3_4: archflags=['-march=opteron']
else:
print "WARNING: gcc versions below 3.4 don't support -march=opteron, using -march=athlon-4 -msse2 -mfpmath=sse instead"
archflags=['-march=athlon-4', '-msse2', '-mfpmath=sse']
else:
if str.find("Nehemiah") != -1:
print " found VIA Nehemiah"
archflags=['-march=c3-2']
elif str.find("Eden") != -1:
print " found VIA Eden C3"
archflags=['-march=c3']
elif str.find("Ezra") != -1:
print " found VIA Ezra"
archflags=['-march=c3']
str = f.readline()
if len(archflags) == 0:
if vendor == "":
if family != -1: # has to be checked...
if family_number in ('970'):
print " found PowerPC 970 (G5)"
archflags=['-mtune=G5', '-maltivec', '-mabi=altivec']
#i think these are all the same as far as gcc cares
elif family_number in ('7450','7455','7445','7447','7457'):
print " found PowerPC 7450 (G4 v2)"
archflags=['-mtune=7450', '-maltivec', '-mabi=altivec']
elif family_number in ('7400','7410'):
print " found PowerPC 7400 (G4)"
archflags=['-mtune=7400', '-maltivec', '-mabi=altivec']
elif family_number in ('750'):
print " found PowerPC 750 (G3)"
archflags=['-mtune=750']
elif family_number in ('740'):
print " found PowerPC 740 (G3)"
archflags=['-mtune=740']
elif family_number in ('604'):
print " found PowerPC 604"
archflags=['-mtune=604']
elif family_number in ('603'):
print " found PowerPC 603"
archflags=['-mtune=603']
f.close()
if len(archflags) == 0:
print "Couldn't detect your CPU, guessing i686 compatible.."
archflags=['-march=i686']
return archflags
|
