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, Duncan Gray Oct 2001 |
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11 | """ |
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12 | |
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13 | # FIXME (Ole): Although this script says it works with a range of compilers, |
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14 | # it has only really been used with gcc. |
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15 | |
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16 | import os, string, sys, types |
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17 | |
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18 | separation_line = '---------------------------------------' |
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19 | |
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20 | def compile(FNs=None, CC=None, LD = None, SFLAG = None, verbose = 1): |
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21 | """compile(FNs=None, CC=None, LD = None, SFLAG = None): |
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22 | |
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23 | Compile FN(s) using compiler CC (e.g. mpicc), |
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24 | Loader LD and shared flag SFLAG. |
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25 | If CC is absent use default compiler dependent on platform |
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26 | if LD is absent CC is used. |
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27 | if SFLAG is absent platform default is used |
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28 | FNs can be either one filename or a list of filenames |
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29 | In the latter case, the first will be used to name so file. |
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30 | """ |
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31 | |
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32 | # Input check |
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33 | # |
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34 | assert not FNs is None, 'No filename provided' |
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35 | |
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36 | if not type(FNs) == types.ListType: |
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37 | FNs = [FNs] |
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38 | |
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39 | |
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40 | libext = 'so' #Default extension (Unix) |
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41 | libs = '' |
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42 | version = sys.version[:3] |
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43 | |
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44 | # Determine platform and compiler |
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45 | # |
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46 | if sys.platform == 'sunos5': #Solaris |
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47 | if CC: |
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48 | compiler = CC |
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49 | else: |
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50 | compiler = 'gcc' |
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51 | if LD: |
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52 | loader = LD |
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53 | else: |
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54 | loader = compiler |
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55 | if SFLAG: |
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56 | sharedflag = SFLAG |
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57 | else: |
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58 | sharedflag = 'G' |
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59 | |
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60 | elif sys.platform == 'osf1V5': #Compaq AlphaServer |
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61 | if CC: |
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62 | compiler = CC |
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63 | else: |
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64 | compiler = 'cc' |
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65 | if LD: |
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66 | loader = LD |
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67 | else: |
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68 | loader = compiler |
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69 | if SFLAG: |
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70 | sharedflag = SFLAG |
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71 | else: |
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72 | sharedflag = 'shared' |
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73 | |
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74 | elif sys.platform == 'linux2': #Linux |
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75 | if CC: |
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76 | compiler = CC |
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77 | else: |
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78 | compiler = 'gcc' |
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79 | if LD: |
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80 | loader = LD |
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81 | else: |
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82 | loader = compiler |
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83 | if SFLAG: |
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84 | sharedflag = SFLAG |
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85 | else: |
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86 | sharedflag = 'shared' |
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87 | |
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88 | elif sys.platform == 'darwin': #Mac OS X: |
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89 | if CC: |
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90 | compiler = CC |
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91 | else: |
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92 | compiler = 'cc' |
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93 | if LD: |
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94 | loader = LD |
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95 | else: |
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96 | loader = compiler |
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97 | if SFLAG: |
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98 | sharedflag = SFLAG |
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99 | else: |
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100 | sharedflag = 'bundle -flat_namespace -undefined suppress' |
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101 | |
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102 | elif sys.platform == 'cygwin': #Cygwin (compilation same as linux) |
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103 | if CC: |
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104 | compiler = CC |
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105 | else: |
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106 | compiler = 'gcc' |
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107 | if LD: |
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108 | loader = LD |
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109 | else: |
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110 | loader = compiler |
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111 | if SFLAG: |
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112 | sharedflag = SFLAG |
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113 | else: |
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114 | sharedflag = 'shared' |
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115 | libext = 'dll' |
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116 | libs = '/lib/python%s/config/libpython%s.dll.a' %(version,version) |
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117 | |
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118 | elif sys.platform == 'win32': #Windows |
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119 | if CC: |
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120 | compiler = CC |
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121 | else: |
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122 | compiler = 'gcc.exe' #Some systems require this (a security measure?) |
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123 | if LD: |
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124 | loader = LD |
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125 | else: |
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126 | loader = compiler |
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127 | if SFLAG: |
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128 | sharedflag = SFLAG |
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129 | else: |
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130 | sharedflag = 'shared' |
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131 | |
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132 | libext = 'dll' |
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133 | |
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134 | v = version.replace('.','') |
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135 | dllfilename = 'python%s.dll' %(v) |
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136 | #libs = os.path.join(sys.exec_prefix,dllfilename) |
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137 | libs, is_found = set_python_dll_path() |
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138 | |
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139 | else: |
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140 | if verbose: print "Unrecognised platform %s - revert to default"\ |
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141 | %sys.platform |
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142 | |
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143 | if CC: |
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144 | compiler = CC |
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145 | else: |
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146 | compiler = 'cc' |
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147 | if LD: |
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148 | loader = LD |
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149 | else: |
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150 | loader = 'ld' |
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151 | if SFLAG: |
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152 | sharedflag = SFLAG |
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153 | else: |
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154 | sharedflag = 'G' |
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155 | |
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156 | |
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157 | # Verify that compiler can be executed |
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158 | print 'Compiler: %s, version ' %compiler, |
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159 | sys.stdout.flush() |
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160 | s = '%s -dumpversion' %(compiler) |
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161 | err = os.system(s) |
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162 | print |
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163 | |
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164 | if err != 0: |
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165 | msg = 'Unable to execute compiler: %s. ' %compiler |
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166 | msg += 'Make sure it is available on the system path.\n' |
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167 | msg += 'One way to check this is to run %s on ' %compiler |
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168 | msg += 'the commandline.' |
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169 | raise Exception, msg |
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170 | |
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171 | |
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172 | # Find location of include files |
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173 | # |
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174 | if sys.platform == 'win32': #Windows |
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175 | python_include = os.path.join(sys.exec_prefix, 'include') |
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176 | else: |
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177 | python_include = os.path.join(os.path.join(sys.exec_prefix, 'include'), |
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178 | 'python' + version) |
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179 | |
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180 | # Check existence of Python.h |
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181 | # |
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182 | headerfile = python_include + os.sep + 'Python.h' |
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183 | try: |
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184 | open(headerfile, 'r') |
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185 | except: |
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186 | raise """Did not find Python header file %s. |
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187 | Make sure files for Python C-extensions are installed. |
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188 | In debian linux, for example, you need to install a |
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189 | package called something like python2.3-dev""" %headerfile |
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190 | |
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191 | |
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192 | |
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193 | # Add Python path + utilities to includelist (see ticket:31) |
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194 | # Assume there is only one 'utilities' dir under path dirs |
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195 | |
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196 | utilities_include_dir = None |
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197 | for pathdir in sys.path: |
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198 | |
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199 | utilities_include_dir = pathdir + os.sep + 'utilities' |
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200 | #print pathdir |
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201 | #print utilities_include_dir |
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202 | try: |
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203 | os.stat(utilities_include_dir) |
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204 | except OSError: |
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205 | pass |
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206 | else: |
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207 | #print 'Found %s to be used as include dir' %utilities_include_dir |
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208 | break |
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209 | |
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210 | # This is hacky since it |
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211 | # assumes the location of the compile_all that determines buildroot |
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212 | try: |
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213 | utilities_include_dir = buildroot + os.sep + "source" + os.sep + "anuga" \ |
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214 | + os.sep + 'utilities' |
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215 | except: |
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216 | # This will make compile work locally |
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217 | utilities_include_dir = '.' |
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218 | utilities_include_dir = '../utilities' |
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219 | |
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220 | |
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221 | |
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222 | try: |
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223 | os.stat(utilities_include_dir) |
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224 | except OSError: |
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225 | utilities_include_dir = buildroot + os.sep + 'utilities' |
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226 | |
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227 | |
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228 | |
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229 | # Check filename(s) |
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230 | # |
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231 | object_files = '' |
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232 | for FN in FNs: |
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233 | root, ext = os.path.splitext(FN) |
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234 | if ext == '': |
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235 | FN = FN + '.c' |
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236 | elif ext.lower() != '.c': |
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237 | raise Exception, "Unrecognised extension: " + FN |
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238 | |
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239 | try: |
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240 | open(FN, 'r') |
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241 | except: |
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242 | raise Exception, "Could not open: " + FN |
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243 | |
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244 | if not object_files: root1 = root #Remember first filename |
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245 | object_files += root + '.o ' |
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246 | |
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247 | |
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248 | # Compile |
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249 | # |
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250 | if utilities_include_dir is None: |
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251 | s = '%s -c %s -I"%s" -o "%s.o" -Wall -O3'\ |
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252 | %(compiler, FN, python_include, root) |
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253 | else: |
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254 | if FN == "triangle.c" or FN == "mesh_engine_c_layer.c": |
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255 | s = '%s -c %s -I"%s" -I"%s" -o "%s.o" -O3 -DTRILIBRARY=1 -DNO_TIMER=1'\ |
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256 | %(compiler, FN, python_include, utilities_include_dir, root) |
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257 | else: |
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258 | s = '%s -c %s -I"%s" -I"%s" -o "%s.o" -Wall -O3'\ |
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259 | %(compiler, FN, python_include, utilities_include_dir, root) |
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260 | |
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261 | if os.name == 'posix' and os.uname()[4] == 'x86_64': |
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262 | #Extra flags for 64 bit architectures |
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263 | #Second clause will always fail on Win32 because uname is UNIX specific |
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264 | #but won't get past first clause |
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265 | |
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266 | #FIXME: Which one? |
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267 | #s += ' -fPIC' |
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268 | s += ' -fPIC -m64' |
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269 | |
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270 | |
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271 | if verbose: |
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272 | print s |
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273 | |
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274 | # Doesn't work on Windows anyway |
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275 | #else: |
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276 | # s = s + ' 2> /dev/null' #Suppress errors |
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277 | |
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278 | try: |
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279 | err = os.system(s) |
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280 | if err != 0: |
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281 | raise 'Attempting to compile %s failed - please try manually' %FN |
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282 | except: |
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283 | raise 'Could not compile %s - please try manually' %FN |
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284 | |
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285 | |
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286 | # Make shared library (*.so or *.dll) |
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287 | if libs is "": |
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288 | s = '%s -%s %s -o %s.%s -lm' %(loader, sharedflag, object_files, root1, libext) |
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289 | else: |
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290 | s = '%s -%s %s -o %s.%s "%s" -lm' %(loader, sharedflag, object_files, root1, libext, libs) |
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291 | |
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292 | if verbose: |
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293 | print s |
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294 | |
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295 | # Doesn't work on Windows anyway |
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296 | #else: |
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297 | # s = s + ' 2> /dev/null' #Suppress warnings |
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298 | |
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299 | try: |
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300 | err=os.system(s) |
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301 | if err != 0: |
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302 | raise 'Attempting to link %s failed - please try manually' %root1 |
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303 | except: |
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304 | raise 'Could not link %s - please try manually' %root1 |
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305 | |
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306 | |
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307 | def can_use_C_extension(filename): |
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308 | """Determine whether specified C-extension |
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309 | can and should be used. |
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310 | """ |
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311 | |
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312 | from anuga.config import use_extensions |
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313 | |
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314 | from os.path import splitext |
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315 | |
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316 | root, ext = splitext(filename) |
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317 | |
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318 | C=False |
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319 | if use_extensions: |
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320 | try: |
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321 | s = 'import %s' %root |
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322 | #print s |
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323 | exec(s) |
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324 | except: |
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325 | try: |
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326 | open(filename) |
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327 | except: |
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328 | msg = 'C extension %s cannot be opened' %filename |
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329 | print msg |
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330 | else: |
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331 | print '------- Trying to compile c-extension %s' %filename |
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332 | |
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333 | try: |
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334 | compile(filename) |
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335 | except: |
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336 | print 'WARNING: Could not compile C-extension %s'\ |
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337 | %filename |
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338 | else: |
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339 | try: |
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340 | exec('import %s' %root) |
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341 | except: |
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342 | msg = 'C extension %s seems to compile OK, ' |
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343 | msg += 'but it can still not be imported.' |
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344 | raise msg |
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345 | else: |
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346 | C=True |
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347 | else: |
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348 | C=True |
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349 | |
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350 | if not C: |
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351 | pass |
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352 | print 'NOTICE: C-extension %s not used' %filename |
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353 | |
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354 | return C |
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355 | |
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356 | |
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357 | def set_python_dll_path(): |
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358 | """ Find which of the two usual hiding places the python dll is located. |
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359 | |
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360 | If the file can't be found, return None. |
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361 | """ |
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362 | import sys |
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363 | from os import access, F_OK |
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364 | |
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365 | version = sys.version[:3] |
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366 | v = version.replace('.','') |
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367 | dllfilename = 'python%s.dll' %(v) |
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368 | libs = os.path.join(sys.exec_prefix,dllfilename) |
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369 | |
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370 | is_found = True |
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371 | if access(libs,F_OK) == 0 : |
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372 | # Hacky - fix if you want |
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373 | libs = os.path.join('c:'+os.sep+'WINNT'+os.sep+'system32',dllfilename) |
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374 | if access(libs,F_OK) == 0 : |
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375 | # could not find the dll |
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376 | libs = os.path.join(sys.exec_prefix,dllfilename) |
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377 | is_found = False |
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378 | return libs, is_found |
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379 | |
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380 | def check_python_dll(): |
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381 | libs, is_found = set_python_dll_path() |
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382 | if not is_found: |
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383 | print "%s not found.\nPlease install.\nIt is available on the web." \ |
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384 | %(libs) |
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385 | import sys; sys.exit() |
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386 | |
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387 | |
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388 | if __name__ == '__main__': |
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389 | from os.path import splitext |
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390 | |
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391 | if sys.platform == 'win32': |
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392 | check_python_dll() |
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393 | if len(sys.argv) > 1: |
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394 | files = sys.argv[1:] |
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395 | for filename in files: |
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396 | root, ext = splitext(filename) |
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397 | |
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398 | if ext <> '.c': |
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399 | print 'WARNING (compile.py): Skipping %s. I only compile C-files.' %filename |
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400 | |
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401 | else: |
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402 | #path = os.path.split(sys.argv[0])[0] or os.getcwd() |
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403 | path = '.' |
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404 | files = os.listdir(path) |
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405 | |
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406 | |
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407 | |
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408 | for filename in files: |
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409 | root, ext = splitext(filename) |
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410 | |
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411 | if ext == '.c': |
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412 | for x in ['.dll', '.so']: |
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413 | try: |
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414 | os.remove(root + x) |
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415 | except: |
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416 | pass |
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417 | |
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418 | print separation_line |
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419 | print 'Trying to compile c-extension %s in %s'\ |
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420 | %(filename, os.getcwd()) |
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421 | try: |
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422 | if filename == 'triang.c': |
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423 | compile(['triang.c','triangle.c']) |
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424 | elif filename == 'mesh_engine_c_layer.c': |
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425 | compile(['mesh_engine_c_layer.c','triangle.c']) |
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426 | else: |
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427 | compile(filename) |
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428 | except Exception, e: |
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429 | msg = 'Could not compile C extension %s\n' %filename |
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430 | msg += str(e) |
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431 | raise Exception, msg |
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432 | else: |
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433 | print 'C extension %s OK' %filename |
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434 | print |
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435 | |
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436 | |
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