# 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