| 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 | # As of python2.5, .pyd is the extension for python extension |
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| 133 | # modules. |
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| 134 | if sys.version_info[0:2] >= (2, 5): |
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| 135 | libext = 'pyd' |
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| 136 | else: |
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| 137 | libext = 'dll' |
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| 138 | |
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| 139 | libs, is_found = set_python_dll_path() |
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| 140 | |
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| 141 | else: |
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| 142 | if verbose: print "Unrecognised platform %s - revert to default"\ |
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| 143 | %sys.platform |
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| 144 | |
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| 145 | if CC: |
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| 146 | compiler = CC |
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| 147 | else: |
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| 148 | compiler = 'cc' |
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| 149 | if LD: |
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| 150 | loader = LD |
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| 151 | else: |
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| 152 | loader = 'ld' |
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| 153 | if SFLAG: |
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| 154 | sharedflag = SFLAG |
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| 155 | else: |
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| 156 | sharedflag = 'G' |
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| 157 | |
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| 158 | |
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| 159 | # Verify that compiler can be executed |
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| 160 | print 'Compiler: %s, version ' %compiler, |
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| 161 | sys.stdout.flush() |
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| 162 | s = '%s -dumpversion' %(compiler) |
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| 163 | err = os.system(s) |
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| 164 | print |
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| 165 | |
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| 166 | if err != 0: |
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| 167 | msg = 'Unable to execute compiler: %s. ' %compiler |
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| 168 | msg += 'Make sure it is available on the system path.\n' |
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| 169 | msg += 'One way to check this is to run %s on ' %compiler |
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| 170 | msg += 'the commandline.' |
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| 171 | raise Exception, msg |
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| 172 | |
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| 173 | |
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| 174 | # Find location of include files |
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| 175 | # |
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| 176 | if sys.platform == 'win32': #Windows |
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| 177 | python_include = os.path.join(sys.exec_prefix, 'include') |
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| 178 | else: |
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| 179 | python_include = os.path.join(os.path.join(sys.exec_prefix, 'include'), |
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| 180 | 'python' + version) |
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| 181 | |
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| 182 | # Check existence of Python.h |
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| 183 | # |
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| 184 | headerfile = python_include + os.sep + 'Python.h' |
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| 185 | try: |
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| 186 | open(headerfile, 'r') |
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| 187 | except: |
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| 188 | raise """Did not find Python header file %s. |
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| 189 | Make sure files for Python C-extensions are installed. |
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| 190 | In debian linux, for example, you need to install a |
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| 191 | package called something like python2.3-dev""" %headerfile |
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| 192 | |
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| 193 | |
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| 194 | |
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| 195 | # Add Python path + utilities to includelist (see ticket:31) |
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| 196 | # Assume there is only one 'utilities' dir under path dirs |
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| 197 | |
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| 198 | utilities_include_dir = None |
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| 199 | for pathdir in sys.path: |
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| 200 | |
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| 201 | utilities_include_dir = pathdir + os.sep + 'utilities' |
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| 202 | #print pathdir |
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| 203 | #print utilities_include_dir |
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| 204 | try: |
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| 205 | os.stat(utilities_include_dir) |
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| 206 | except OSError: |
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| 207 | pass |
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| 208 | else: |
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| 209 | #print 'Found %s to be used as include dir' %utilities_include_dir |
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| 210 | break |
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| 211 | |
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| 212 | # This is hacky since it |
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| 213 | # assumes the location of the compile_all that determines buildroot |
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| 214 | try: |
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| 215 | utilities_include_dir = buildroot + os.sep + "source" + os.sep + "anuga" \ |
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| 216 | + os.sep + 'utilities' |
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| 217 | except: |
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| 218 | # This will make compile work locally |
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| 219 | utilities_include_dir = '.' |
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| 220 | utilities_include_dir = '../utilities' |
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| 221 | |
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| 222 | |
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| 223 | |
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| 224 | try: |
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| 225 | os.stat(utilities_include_dir) |
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| 226 | except OSError: |
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| 227 | utilities_include_dir = buildroot + os.sep + 'utilities' |
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| 228 | |
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| 229 | |
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| 230 | |
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| 231 | # Check filename(s) |
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| 232 | # |
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| 233 | object_files = '' |
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| 234 | for FN in FNs: |
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| 235 | root, ext = os.path.splitext(FN) |
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| 236 | if ext == '': |
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| 237 | FN = FN + '.c' |
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| 238 | elif ext.lower() != '.c': |
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| 239 | raise Exception, "Unrecognised extension: " + FN |
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| 240 | |
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| 241 | try: |
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| 242 | open(FN, 'r') |
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| 243 | except: |
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| 244 | raise Exception, "Could not open: " + FN |
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| 245 | |
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| 246 | if not object_files: root1 = root #Remember first filename |
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| 247 | object_files += root + '.o ' |
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| 248 | |
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| 249 | |
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| 250 | # Compile |
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| 251 | # |
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| 252 | if utilities_include_dir is None: |
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| 253 | s = '%s -c %s -I"%s" -o "%s.o" -Wall -O3'\ |
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| 254 | %(compiler, FN, python_include, root) |
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| 255 | else: |
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| 256 | if FN == "triangle.c" or FN == "mesh_engine_c_layer.c": |
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| 257 | s = '%s -c %s -I"%s" -I"%s" -o "%s.o" -O3 -DTRILIBRARY=1 -DNO_TIMER=1'\ |
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| 258 | %(compiler, FN, python_include, utilities_include_dir, root) |
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| 259 | elif FN == "polygon_ext.c": |
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| 260 | # gcc 4.3.x screws up in this file if '-O3' is used |
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| 261 | s = '%s -c %s -I"%s" -I"%s" -o "%s.o" -Wall'\ |
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| 262 | %(compiler, FN, python_include, utilities_include_dir, root) |
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| 263 | else: |
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| 264 | s = '%s -c %s -I"%s" -I"%s" -o "%s.o" -Wall -O3'\ |
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| 265 | %(compiler, FN, python_include, utilities_include_dir, root) |
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| 266 | |
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| 267 | if os.name == 'posix' and os.uname()[4] in ['x86_64', 'ia64']: |
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| 268 | # Extra flags for 64 bit architectures. |
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| 269 | # AMD Opteron will give x86_64 |
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| 270 | # Itanium will give ia64 |
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| 271 | # |
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| 272 | # Second clause will always fail on Win32 because uname is UNIX specific |
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| 273 | # but won't get past first clause |
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| 274 | |
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| 275 | s += ' -fPIC' # Use position independent code for 64 bit archs |
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| 276 | #s += ' -m64' # Used to be necessary for AMD Opteron |
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| 277 | |
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| 278 | |
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| 279 | if verbose: |
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| 280 | print s |
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| 281 | |
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| 282 | # Doesn't work on Windows anyway |
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| 283 | #else: |
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| 284 | # s = s + ' 2> /dev/null' #Suppress errors |
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| 285 | |
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| 286 | try: |
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| 287 | err = os.system(s) |
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| 288 | if err != 0: |
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| 289 | raise 'Attempting to compile %s failed - please try manually' %FN |
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| 290 | except: |
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| 291 | raise 'Could not compile %s - please try manually' %FN |
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| 292 | |
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| 293 | |
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| 294 | # Make shared library (*.so or *.dll) |
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| 295 | if libs is "": |
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| 296 | s = '%s -%s %s -o %s.%s -lm' %(loader, sharedflag, object_files, root1, libext) |
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| 297 | else: |
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| 298 | s = '%s -%s %s -o %s.%s "%s" -lm' %(loader, sharedflag, object_files, root1, libext, libs) |
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| 299 | |
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| 300 | if verbose: |
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| 301 | print s |
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| 302 | |
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| 303 | # Doesn't work on Windows anyway |
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| 304 | #else: |
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| 305 | # s = s + ' 2> /dev/null' #Suppress warnings |
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| 306 | |
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| 307 | try: |
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| 308 | err=os.system(s) |
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| 309 | if err != 0: |
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| 310 | raise 'Attempting to link %s failed - please try manually' %root1 |
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| 311 | except: |
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| 312 | raise 'Could not link %s - please try manually' %root1 |
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| 313 | |
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| 314 | |
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| 315 | def can_use_C_extension(filename): |
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| 316 | """Determine whether specified C-extension |
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| 317 | can and should be used. |
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| 318 | """ |
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| 319 | |
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| 320 | from anuga.config import use_extensions |
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| 321 | |
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| 322 | from os.path import splitext |
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| 323 | |
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| 324 | root, ext = splitext(filename) |
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| 325 | |
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| 326 | C=False |
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| 327 | if use_extensions: |
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| 328 | try: |
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| 329 | s = 'import %s' %root |
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| 330 | #print s |
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| 331 | exec(s) |
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| 332 | except: |
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| 333 | try: |
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| 334 | open(filename) |
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| 335 | except: |
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| 336 | msg = 'C extension %s cannot be opened' %filename |
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| 337 | print msg |
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| 338 | else: |
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| 339 | print '------- Trying to compile c-extension %s' %filename |
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| 340 | |
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| 341 | try: |
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| 342 | compile(filename) |
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| 343 | except: |
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| 344 | print 'WARNING: Could not compile C-extension %s'\ |
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| 345 | %filename |
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| 346 | else: |
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| 347 | try: |
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| 348 | exec('import %s' %root) |
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| 349 | except: |
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| 350 | msg = 'C extension %s seems to compile OK, ' |
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| 351 | msg += 'but it can still not be imported.' |
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| 352 | raise msg |
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| 353 | else: |
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| 354 | C=True |
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| 355 | else: |
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| 356 | C=True |
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| 357 | |
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| 358 | if not C: |
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| 359 | pass |
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| 360 | print 'NOTICE: C-extension %s not used' %filename |
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| 361 | |
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| 362 | return C |
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| 363 | |
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| 364 | |
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| 365 | def set_python_dll_path(): |
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| 366 | """ On windows, find which of the two usual hiding places the python |
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| 367 | dll is located. |
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| 368 | |
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| 369 | If the file can't be found, return None. |
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| 370 | """ |
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| 371 | import sys |
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| 372 | from os import access, F_OK |
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| 373 | |
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| 374 | version = sys.version[:3] |
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| 375 | v = version.replace('.','') |
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| 376 | dllfilename = 'python%s.dll' %(v) |
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| 377 | libs = os.path.join(sys.exec_prefix,dllfilename) |
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| 378 | |
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| 379 | is_found = True |
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| 380 | if access(libs,F_OK) == 0 : |
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| 381 | # Sometimes python dll is hidden in %WINDIR%/system32 |
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| 382 | libs = os.path.join(os.environ.get('WINDIR', 'C:\WINNT'), 'system32', |
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| 383 | dllfilename) |
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| 384 | if access(libs,F_OK) == 0 : |
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| 385 | # could not find the dll |
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| 386 | libs = os.path.join(sys.exec_prefix,dllfilename) |
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| 387 | is_found = False |
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| 388 | return libs, is_found |
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| 389 | |
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| 390 | def check_python_dll(): |
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| 391 | libs, is_found = set_python_dll_path() |
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| 392 | if not is_found: |
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| 393 | print "%s not found.\nPlease install.\nIt is available on the web." \ |
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| 394 | %(libs) |
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| 395 | import sys; sys.exit() |
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| 396 | |
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| 397 | |
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| 398 | if __name__ == '__main__': |
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| 399 | from os.path import splitext |
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| 400 | |
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| 401 | if sys.platform == 'win32': |
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| 402 | check_python_dll() |
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| 403 | if len(sys.argv) > 1: |
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| 404 | files = sys.argv[1:] |
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| 405 | for filename in files: |
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| 406 | root, ext = splitext(filename) |
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| 407 | |
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| 408 | if ext <> '.c': |
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| 409 | print 'WARNING (compile.py): Skipping %s. I only compile C-files.' %filename |
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| 410 | |
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| 411 | else: |
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| 412 | #path = os.path.split(sys.argv[0])[0] or os.getcwd() |
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| 413 | path = '.' |
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| 414 | files = os.listdir(path) |
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| 415 | |
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| 416 | |
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| 417 | |
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| 418 | for filename in files: |
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| 419 | root, ext = splitext(filename) |
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| 420 | |
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| 421 | if ext == '.c': |
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| 422 | for x in ['.dll', '.so']: |
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| 423 | try: |
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| 424 | os.remove(root + x) |
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| 425 | except: |
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| 426 | pass |
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| 427 | |
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| 428 | print separation_line |
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| 429 | print 'Trying to compile c-extension %s in %s'\ |
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| 430 | %(filename, os.getcwd()) |
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| 431 | try: |
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| 432 | if filename == 'triang.c': |
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| 433 | compile(['triang.c','triangle.c']) |
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| 434 | elif filename == 'mesh_engine_c_layer.c': |
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| 435 | compile(['mesh_engine_c_layer.c','triangle.c']) |
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| 436 | else: |
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| 437 | compile(filename) |
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| 438 | except Exception, e: |
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| 439 | msg = 'Could not compile C extension %s\n' %filename |
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| 440 | msg += str(e) |
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| 441 | raise Exception, msg |
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| 442 | else: |
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| 443 | print 'C extension %s OK' %filename |
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| 444 | print |
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| 445 | |
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| 446 | |
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