Mercurial > cpython-lru_cache-weakref

annotate Modules/ld_so_aix @ 4566:6403c94de50d legacy-trunk

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Added safeguard against failure in __del__.
author Guido van Rossum <guido@python.org>
date Wed, 27 Nov 1996 19:39:58 +0000
parents 4f6c56292d34
children b2e018fb2ba9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/bin/sh
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2 #
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3 # ========================================================================
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4 # FILE: ld_so_aix
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5 # TYPE: executable, uses makexp_aix
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6 # SYSTEM: AIX
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7 #
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8 # DESCRIPTION: Creates a shareable .o from a set of pre-compiled
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9 # (unshared) .o files
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10 #
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11 # USAGE: ld_so_aix [CC] [arguments]
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12 #
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13 # ARGUMENTS: Same as for "ld". The following arguments are processed
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14 # or supplied by this script (those marked with an asterisk
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15 # can be overriden from command line):
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16 #
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17 # Argument Default value
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18 # (*) -o [OutputFileName] -o shr.o
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19 # (*) -e [EntryPointLabel] -e init[OutputBaseName]
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20 # (*) -bE:[ExportFile] -bE:[OutputBaseName].exp
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21 # (*) -bI:[ImportFile] -bI:./python.exp
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22 # -bM:[ModuleType] -bM:SRE
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23 # -T[Number] -T512
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24 # -H[Number] -H512
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25 # -lm
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26 #
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27 # The compiler specific ("-lc" or "-lc_r", "-lpthreads",...)
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28 # arguments will be automatically passed to "ld" according
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29 # to the CC command provided as a first argument to this
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30 # script. Usually, the same CC command was used to produce
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31 # the pre-compiled .o file(s).
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32 #
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33 # NOTES: 1. Since "ld_so_aix" was originally written for building
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34 # shared modules for the Python interpreter, the -e and
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35 # -bI default values match Python's conventions. In
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36 # Python, the entry point for a shared module is based
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37 # on the module's name (e.g., the "mathmodule" will
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38 # expect an entry point of "initmath").
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39 # 2. The script accepts multiple .o or .a input files and
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40 # creates a single (shared) output file. The export list
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41 # that is created is based on the output file's basename
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42 # with the suffix ".exp".
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43 # 3. The resulting shared object file is left in the
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44 # current directory.
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45 # 4. Uncommenting the "echo" lines gives detailed output
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46 # about the commands executed in the script.
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47 #
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48 #
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49 # HISTORY: Oct-1996 -- Support added for multiple .o files --
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50 # -- and optional arguments processing. --
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51 # Chris Myers (myers@tc.cornell.edu), Keith Kwok
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52 # (kkwok@tc.cornell.edu) and Vladimir Marangozov
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53 #
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54 # Aug-6-1996 -- Take care of the compiler specific --
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55 # -- args by leaving CC to invoke "ld". --
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56 # Vladimir Marangozov
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57 #
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58 # Jul-1-1996 -- Make sure to use /usr/ccs/bin/ld --
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59 # -- Use makexp_aix for the export list. --
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60 # Vladimir Marangozov (Vladimir.Marangozov@imag.fr)
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61 #
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62 # Manus Hand (mhand@csn.net) -- Initial code -- 6/24/96
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63 # ========================================================================
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64 #
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65
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66 usage="Usage: ld_so_aix [CC command] [ld arguments]"
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67 if test ! -n "$*"; then
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68 echo $usage; exit 2
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69 fi
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70
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71 # Check for existence of compiler.
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72 CC=$1; shift
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73 whichcc=`which $CC`
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74
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75 if test ! -x "$whichcc"; then
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76 echo "ld_so_aix: Compiler '$CC' not found; exiting."
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77 exit 2
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78 fi
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79
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80 if test ! -n "$*"; then
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81 echo $usage; exit 2
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82 fi
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83
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84 # Default import file for Python
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85 # Can be overriden by providing a -bI: argument.
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86 impfile="./python.exp"
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87
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88 # Parse arguments
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89 while test -n "$1"
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90 do
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91 case "$1" in
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92 -e | -Wl,-e)
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93 if test -z "$2"; then
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94 echo "ld_so_aix: The -e flag needs a parameter; exiting."; exit 2
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95 else
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96 shift; entry=$1
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97 fi
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98 ;;
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99 -e* | -Wl,-e*)
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100 entry=`echo $1 | sed -e "s/-Wl,//" -e "s/-e//"`
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101 ;;
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102 -o)
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103 if test -z "$2"; then
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104 echo "ld_so_aix: The -o flag needs a parameter; exiting."; exit 2
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105 else
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106 shift; objfile=$1
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107 fi
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108 ;;
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109 -o*)
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110 objfile=`echo $1 | sed "s/-o//"`
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111 ;;
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112 -bI:* | -Wl,-bI:*)
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113 impfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bI://"`
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114 ;;
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115 -bE:* | -Wl,-bE:*)
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116 expfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bE://"`
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117 ;;
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118 *.o | *.a)
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119 objs="$objs $1"
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120 args="$args $1"
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121 ;;
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122 -bM:* | -Wl,-bM:* | -H* | -Wl,-H* | -T* | -Wl,-T* | -lm)
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123 ;;
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124 *)
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125 args="$args $1"
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126 ;;
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127 esac
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128 shift
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129 done
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130
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131
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132 if test -z "$objs"; then
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133 echo "ld_so_aix: No input files; exiting."
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134 exit 2
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135 elif test ! -r "$impfile"; then
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136 echo "ld_so_aix: Import file '$impfile' not found or not readable; exiting."
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137 exit 2
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138 fi
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139
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140 # If -o wasn't specified, assume "-o shr.o"
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141 if test -z "$objfile"; then
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142 objfile=shr.o
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143 fi
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144
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145 filename=`basename $objfile | sed "s/\.[^.]*$//"`
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146
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147 # If -bE: wasn't specified, assume "-bE:$filename.exp"
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148 if test -z "$expfile"; then
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149 expfile="$filename.exp"
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150 fi
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151
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152 # Default entry symbol for Python modules = init[modulename]
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153 # Can be overriden by providing a -e argument.
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154 if test -z "$entry"; then
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155 entry=init`echo $filename | sed "s/module.*//"`
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156 fi
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157
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158 #echo "ld_so_aix: Debug info section
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159 #echo " -> output file : $objfile"
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160 #echo " -> import file : $impfile"
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161 #echo " -> export file : $expfile"
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162 #echo " -> entry point : $entry"
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163 #echo " -> object files: $objs"
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164 #echo " -> CC arguments: $args"
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165
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166 CCOPT="-Wl,-e$entry -Wl,-bE:$expfile -Wl,-bI:$impfile"
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167 CCOPT="$CCOPT -Wl,-bM:SRE -Wl,-T512 -Wl,-H512 -lm -o $objfile"
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168 CCARGS="$args"
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169
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170 # Export list generation.
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171 #echo makexp_aix $expfile "$objfile" $objs
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172 makexp_aix $expfile "$objfile" $objs
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173
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174 # Perform the link.
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175 #echo $CC $CCOPT $CCARGS
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176 $CC $CCOPT $CCARGS
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177
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178 # Delete the module's export list file.
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179 # Comment this line if you need it.
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180 rm -f $expfile