73 lines
2.6 KiB
Plaintext
73 lines
2.6 KiB
Plaintext
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#!/bin/sh
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#
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# ldAix ldCmd ldArg ldArg ...
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#
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# This shell script provides a wrapper for ld under AIX in order to
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# create the .exp file required for linking. Its arguments consist
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# of the name and arguments that would normally be provided to the
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# ld command. This script extracts the names of the object files
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# from the argument list, creates a .exp file describing all of the
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# symbols exported by those files, and then invokes "ldCmd" to
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# perform the real link.
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#
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# SCCS: @(#) ldAix 1.7 96/03/27 09:45:03
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# Extract from the arguments the names of all of the object files.
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args=$*
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ofiles=""
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for i do
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x=`echo $i | grep '[^.].o$'`
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if test "$x" != ""; then
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ofiles="$ofiles $i"
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fi
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done
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# Create the export file from all of the object files, using nm followed
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# by sed editing. Here are some tricky aspects of this:
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#
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# 1. Nm produces different output under AIX 4.1 than under AIX 3.2.5;
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# the following statements handle both versions.
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# 2. Use the -g switch to nm instead of -e under 4.1 (this shows just
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# externals, not statics; -g isn't available under 3.2.5, though).
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# 3. Eliminate lines that end in ":": these are the names of object
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# files (relevant in 4.1 only).
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# 4. Eliminate entries with the "U" key letter; these are undefined
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# symbols (relevant in 4.1 only).
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# 5. Eliminate lines that contain the string "0|extern" preceded by space;
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# in 3.2.5, these are undefined symbols (address 0).
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# 6. Eliminate lines containing the "unamex" symbol. In 3.2.5, these
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# are also undefined symbols.
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# 7. If a line starts with ".", delete the leading ".", since this will
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# just cause confusion later.
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# 8. Eliminate everything after the first field in a line, so that we're
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# left with just the symbol name.
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nmopts="-g"
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osver=`uname -v`
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if test $osver -eq 3; then
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nmopts="-e"
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fi
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rm -f lib.exp
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echo "#! " >lib.exp
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/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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# Extract the name of the object file that we're linking. If it's a .a
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# file, then link all the objects together into a single file "shr.o"
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# and then put that into the archive. Otherwise link the object files
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# directly into the .a file.
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outputFile=`echo $args | sed -e 's/.*-o \([^ ]*\).*/\1/'`
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noDotA=`echo $outputFile | sed -e '/\.a$/d'`
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echo "noDotA=\"$noDotA\""
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if test "$noDotA" = "" ; then
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linkArgs=`echo $args | sed -e 's/-o .*\.a /-o shr.o /'`
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echo $linkArgs
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eval $linkArgs
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echo ar cr $outputFile shr.o
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ar cr $outputFile shr.o
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rm -f shr.o
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else
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eval $args
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fi
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