sl@0: #!/bin/sh
sl@0: #
sl@0: # ldAix ldCmd ldArg ldArg ...
sl@0: #
sl@0: # This shell script provides a wrapper for ld under AIX in order to
sl@0: # create the .exp file required for linking.  Its arguments consist
sl@0: # of the name and arguments that would normally be provided to the
sl@0: # ld command.  This script extracts the names of the object files
sl@0: # from the argument list, creates a .exp file describing all of the
sl@0: # symbols exported by those files, and then invokes "ldCmd" to
sl@0: # perform the real link.
sl@0: #
sl@0: # RCS: @(#) $Id: ldAix,v 1.4 2002/09/27 01:28:26 hobbs Exp $
sl@0: 
sl@0: # Extract from the arguments the names of all of the object files.
sl@0: 
sl@0: args=$*
sl@0: ofiles=""
sl@0: for i do
sl@0:     x=`echo $i | grep '[^.].o$'`
sl@0:     if test "$x" != ""; then
sl@0: 	ofiles="$ofiles $i"
sl@0:     fi
sl@0: done
sl@0: 
sl@0: # Extract the name of the object file that we're linking.
sl@0: outputFile=`echo $args | sed -e 's/.*-o \([^ ]*\).*/\1/'`
sl@0: 
sl@0: # Create the export file from all of the object files, using nm followed
sl@0: # by sed editing.  Here are some tricky aspects of this:
sl@0: #
sl@0: # 1. Nm produces different output under AIX 4.1 than under AIX 3.2.5;
sl@0: #    the following statements handle both versions.
sl@0: # 2. Use the -g switch to nm instead of -e under 4.1 (this shows just
sl@0: #    externals, not statics;  -g isn't available under 3.2.5, though).
sl@0: # 3. Use the -X32_64 switch to nm on AIX-4+ to handle 32 or 64bit compiles.
sl@0: # 4. Eliminate lines that end in ":": these are the names of object
sl@0: #    files (relevant in 4.1 only).
sl@0: # 5. Eliminate entries with the "U" key letter;  these are undefined
sl@0: #    symbols (relevant in 4.1 only).
sl@0: # 6. Eliminate lines that contain the string "0|extern" preceded by space;
sl@0: #    in 3.2.5, these are undefined symbols (address 0).
sl@0: # 7. Eliminate lines containing the "unamex" symbol.  In 3.2.5, these
sl@0: #    are also undefined symbols.
sl@0: # 8. If a line starts with ".", delete the leading ".", since this will
sl@0: #    just cause confusion later.
sl@0: # 9. Eliminate everything after the first field in a line, so that we're
sl@0: #    left with just the symbol name.
sl@0: 
sl@0: nmopts="-g -C"
sl@0: osver=`uname -v`
sl@0: if test $osver -eq 3; then
sl@0:   nmopts="-e"
sl@0: fi
sl@0: if test $osver -gt 3; then
sl@0:   nmopts="$nmopts -X32_64"
sl@0: fi
sl@0: rm -f lib.exp
sl@0: echo "#! $outputFile" >lib.exp
sl@0: /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
sl@0: 
sl@0: # If we're linking a .a file, then link all the objects together into a 
sl@0: # single file "shr.o" and then put that into the archive.  Otherwise link 
sl@0: # the object files directly into the .a file.
sl@0: 
sl@0: outputFile=`echo $args | sed -e 's/.*-o \([^ ]*\).*/\1/'`
sl@0: noDotA=`echo $outputFile | sed -e '/\.a$/d'`
sl@0: echo "noDotA=\"$noDotA\""
sl@0: if test "$noDotA" = "" ; then
sl@0:     linkArgs=`echo $args | sed -e 's/-o .*\.a /-o shr.o /'`
sl@0:     echo $linkArgs
sl@0:     eval $linkArgs
sl@0:     echo ar cr $outputFile shr.o
sl@0:     ar cr $outputFile shr.o
sl@0:     rm -f shr.o
sl@0: else
sl@0:     eval $args
sl@0: fi