[25] | 1 | #!/bin/sh |
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| 2 | # |
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| 3 | # ldAix ldCmd ldArg ldArg ... |
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| 4 | # |
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| 5 | # This shell script provides a wrapper for ld under AIX in order to |
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| 6 | # create the .exp file required for linking. Its arguments consist |
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| 7 | # of the name and arguments that would normally be provided to the |
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| 8 | # ld command. This script extracts the names of the object files |
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| 9 | # from the argument list, creates a .exp file describing all of the |
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| 10 | # symbols exported by those files, and then invokes "ldCmd" to |
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| 11 | # perform the real link. |
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| 12 | # |
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| 13 | # RCS: @(#) $Id: ldAix,v 1.4 2002/09/27 01:28:26 hobbs Exp $ |
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| 14 | |
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| 15 | # Extract from the arguments the names of all of the object files. |
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| 16 | |
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| 17 | args=$* |
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| 18 | ofiles="" |
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| 19 | for i do |
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| 20 | x=`echo $i | grep '[^.].o$'` |
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| 21 | if test "$x" != ""; then |
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| 22 | ofiles="$ofiles $i" |
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| 23 | fi |
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| 24 | done |
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| 25 | |
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| 26 | # Extract the name of the object file that we're linking. |
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| 27 | outputFile=`echo $args | sed -e 's/.*-o \([^ ]*\).*/\1/'` |
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| 28 | |
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| 29 | # Create the export file from all of the object files, using nm followed |
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| 30 | # by sed editing. Here are some tricky aspects of this: |
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| 31 | # |
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| 32 | # 1. Nm produces different output under AIX 4.1 than under AIX 3.2.5; |
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| 33 | # the following statements handle both versions. |
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| 34 | # 2. Use the -g switch to nm instead of -e under 4.1 (this shows just |
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| 35 | # externals, not statics; -g isn't available under 3.2.5, though). |
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| 36 | # 3. Use the -X32_64 switch to nm on AIX-4+ to handle 32 or 64bit compiles. |
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| 37 | # 4. Eliminate lines that end in ":": these are the names of object |
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| 38 | # files (relevant in 4.1 only). |
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| 39 | # 5. Eliminate entries with the "U" key letter; these are undefined |
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| 40 | # symbols (relevant in 4.1 only). |
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| 41 | # 6. Eliminate lines that contain the string "0|extern" preceded by space; |
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| 42 | # in 3.2.5, these are undefined symbols (address 0). |
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| 43 | # 7. Eliminate lines containing the "unamex" symbol. In 3.2.5, these |
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| 44 | # are also undefined symbols. |
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| 45 | # 8. If a line starts with ".", delete the leading ".", since this will |
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| 46 | # just cause confusion later. |
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| 47 | # 9. Eliminate everything after the first field in a line, so that we're |
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| 48 | # left with just the symbol name. |
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| 49 | |
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| 50 | nmopts="-g -C" |
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| 51 | osver=`uname -v` |
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| 52 | if test $osver -eq 3; then |
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| 53 | nmopts="-e" |
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| 54 | fi |
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| 55 | if test $osver -gt 3; then |
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| 56 | nmopts="$nmopts -X32_64" |
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| 57 | fi |
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| 58 | rm -f lib.exp |
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| 59 | echo "#! $outputFile" >lib.exp |
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| 60 | /usr/ccs/bin/nm $nmopts -h $ofiles | sed -e '/:$/d' -e '/ U /d' -e '/[ ]0|extern/d' -e '/unamex/d' -e 's/^\.//' -e 's/[ |].*//' | sort | uniq >>lib.exp |
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| 61 | |
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| 62 | # If we're linking a .a file, then link all the objects together into a |
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| 63 | # single file "shr.o" and then put that into the archive. Otherwise link |
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| 64 | # the object files directly into the .a file. |
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| 65 | |
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| 66 | outputFile=`echo $args | sed -e 's/.*-o \([^ ]*\).*/\1/'` |
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| 67 | noDotA=`echo $outputFile | sed -e '/\.a$/d'` |
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| 68 | echo "noDotA=\"$noDotA\"" |
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| 69 | if test "$noDotA" = "" ; then |
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| 70 | linkArgs=`echo $args | sed -e 's/-o .*\.a /-o shr.o /'` |
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| 71 | echo $linkArgs |
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| 72 | eval $linkArgs |
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| 73 | echo ar cr $outputFile shr.o |
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| 74 | ar cr $outputFile shr.o |
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| 75 | rm -f shr.o |
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| 76 | else |
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| 77 | eval $args |
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| 78 | fi |
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