1 | """compile.py - compile Python C-extension |
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2 | |
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3 | Commandline usage: |
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4 | python compile.py <filename> |
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5 | |
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6 | Usage from within Python: |
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7 | import compile |
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8 | compile.compile(<filename>,..) |
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9 | |
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10 | Ole Nielsen, Oct 2001 |
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11 | """ |
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12 | |
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13 | import numpy |
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14 | def compile(FNs=None, CC=None, LD = None, SFLAG = None, verbose = 1): |
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15 | """compile(FNs=None, CC=None, LD = None, SFLAG = None): |
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16 | |
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17 | Compile FN(s) using compiler CC (e.g. mpicc), |
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18 | Loader LD and shared flag SFLAG. |
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19 | If CC is absent use default compiler dependent on platform |
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20 | if LD is absent CC is used. |
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21 | if SFLAG is absent platform default is used |
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22 | FNs can be either one filename or a list of filenames |
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23 | In the latter case, the first will be used to name so file. |
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24 | """ |
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25 | import os, string, sys, types |
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26 | |
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27 | # Input check |
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28 | # |
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29 | assert not FNs is None, "No filename provided" |
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30 | |
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31 | if not type(FNs) == types.ListType: |
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32 | FNs = [FNs] |
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33 | |
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34 | # Determine platform and compiler |
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35 | # |
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36 | if sys.platform == 'sunos5': #Solaris |
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37 | if CC: |
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38 | compiler = CC |
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39 | else: |
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40 | compiler = 'gcc' |
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41 | if LD: |
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42 | loader = LD |
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43 | else: |
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44 | loader = compiler |
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45 | if SFLAG: |
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46 | sharedflag = SFLAG |
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47 | else: |
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48 | sharedflag = 'G' |
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49 | |
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50 | elif sys.platform == 'osf1V5': #Compaq AlphaServer |
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51 | if CC: |
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52 | compiler = CC |
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53 | else: |
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54 | compiler = 'cc' |
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55 | if LD: |
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56 | loader = LD |
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57 | else: |
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58 | loader = compiler |
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59 | if SFLAG: |
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60 | sharedflag = SFLAG |
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61 | else: |
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62 | sharedflag = 'shared' |
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63 | |
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64 | elif sys.platform == 'linux2': #Linux |
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65 | if CC: |
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66 | compiler = CC |
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67 | else: |
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68 | compiler = 'gcc' |
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69 | if LD: |
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70 | loader = LD |
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71 | else: |
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72 | loader = compiler |
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73 | if SFLAG: |
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74 | sharedflag = SFLAG |
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75 | else: |
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76 | sharedflag = 'shared' |
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77 | |
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78 | elif sys.platform == 'darwin': #Mac OS X: |
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79 | if CC: |
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80 | compiler = CC |
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81 | else: |
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82 | compiler = 'cc' |
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83 | if LD: |
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84 | loader = LD |
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85 | else: |
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86 | loader = compiler |
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87 | if SFLAG: |
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88 | sharedflag = SFLAG |
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89 | else: |
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90 | sharedflag = 'bundle -flat_namespace -undefined suppress' |
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91 | |
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92 | else: |
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93 | if verbose: print "Unrecognised platform %s - revert to default"\ |
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94 | %sys.platform |
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95 | |
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96 | if CC: |
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97 | compiler = CC |
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98 | else: |
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99 | compiler = 'cc' |
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100 | if LD: |
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101 | loader = LD |
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102 | else: |
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103 | loader = 'ld' |
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104 | if SFLAG: |
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105 | sharedflag = SFLAG |
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106 | else: |
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107 | sharedflag = 'G' |
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108 | |
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109 | |
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110 | # Find location of include files |
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111 | # |
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112 | python_include = os.path.join(os.path.join(sys.exec_prefix, 'include'), |
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113 | 'python'+sys.version[:3]) |
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114 | |
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115 | |
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116 | # Check existence of Python.h |
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117 | # |
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118 | headerfile = python_include + '/Python.h' |
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119 | try: |
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120 | open(headerfile, 'r') |
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121 | except: |
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122 | raise """Did not find Python header file %s. |
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123 | Make sure files for Python C-extensions are installed. |
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124 | In debian linux, for example, you need to install a |
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125 | package called something like python2.1-dev""" %headerfile |
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126 | |
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127 | |
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128 | # Get numpy include |
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129 | numpy_include = numpy.get_include() |
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130 | |
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131 | |
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132 | # Check filename(s) |
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133 | # |
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134 | object_files = '' |
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135 | for FN in FNs: |
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136 | root, ext = os.path.splitext(FN) |
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137 | if ext == '': |
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138 | FN = FN + '.c' |
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139 | elif ext.lower() != '.c': |
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140 | raise Exception, "Unrecognised extension: " + FN |
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141 | |
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142 | try: |
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143 | open(FN,'r') |
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144 | except: |
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145 | raise Exception, "Could not open: " + FN |
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146 | |
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147 | if not object_files: root1 = root #Remember first filename |
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148 | object_files += root + '.o ' |
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149 | |
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150 | |
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151 | # Compile |
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152 | # |
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153 | s = "%s -c %s -I%s -I%s -o %s.o -Wall" %(compiler, FN, |
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154 | python_include, numpy_include, |
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155 | root) |
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156 | if os.name == 'posix' and os.uname()[4] == 'x86_64': |
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157 | #Extra flags for 64 bit architectures |
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158 | s += ' -fPIC -m64' #gcc |
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159 | #s += ' -fPIC -tp amd64' #pgcc |
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160 | |
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161 | if verbose: |
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162 | print s |
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163 | else: |
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164 | s = s + ' 2> /dev/null' #Suppress errors |
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165 | |
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166 | try: |
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167 | os.system(s) |
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168 | except: |
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169 | raise 'Could not compile %s - please try manually' %FN |
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170 | |
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171 | |
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172 | # Make shared library (*.so) |
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173 | s = "%s -%s %s -o %s.so" %(loader, sharedflag, object_files, root1) |
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174 | |
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175 | if os.name == 'posix' and os.uname()[4] == 'x86_64': |
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176 | pass |
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177 | #Extra flags for 64 bit architectures using Portland compilers |
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178 | s += ' -mcmodel=medium' |
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179 | |
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180 | if verbose: |
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181 | print s |
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182 | else: |
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183 | s = s + ' 2> /dev/null' #Suppress warnings |
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184 | |
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185 | try: |
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186 | err=os.system(s) |
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187 | except: |
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188 | raise 'Could not link %s - please try manually' %root1 |
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189 | |
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190 | |
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191 | |
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192 | |
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193 | if __name__ == '__main__': |
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194 | |
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195 | import sys |
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196 | |
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197 | # Get file to compile |
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198 | # |
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199 | if len(sys.argv) < 2: |
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200 | print "Usage:" |
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201 | print " python compile.py <filename>" |
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202 | sys.exit() |
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203 | |
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204 | compile(sys.argv[1], verbose=1) |
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205 | |
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