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