ldAix
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上传日期:2015-12-11
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- #!/bin/sh
- #
- # ldAix ldCmd ldArg ldArg ...
- #
- # This shell script provides a wrapper for ld under AIX in order to
- # create the .exp file required for linking. Its arguments consist
- # of the name and arguments that would normally be provided to the
- # ld command. This script extracts the names of the object files
- # from the argument list, creates a .exp file describing all of the
- # symbols exported by those files, and then invokes "ldCmd" to
- # perform the real link.
- #
- # RCS: @(#) $Id: ldAix,v 1.4 2002/09/27 01:28:26 hobbs Exp $
- # Extract from the arguments the names of all of the object files.
- args=$*
- ofiles=""
- for i do
- x=`echo $i | grep '[^.].o$'`
- if test "$x" != ""; then
- ofiles="$ofiles $i"
- fi
- done
- # Extract the name of the object file that we're linking.
- outputFile=`echo $args | sed -e 's/.*-o ([^ ]*).*/1/'`
- # Create the export file from all of the object files, using nm followed
- # by sed editing. Here are some tricky aspects of this:
- #
- # 1. Nm produces different output under AIX 4.1 than under AIX 3.2.5;
- # the following statements handle both versions.
- # 2. Use the -g switch to nm instead of -e under 4.1 (this shows just
- # externals, not statics; -g isn't available under 3.2.5, though).
- # 3. Use the -X32_64 switch to nm on AIX-4+ to handle 32 or 64bit compiles.
- # 4. Eliminate lines that end in ":": these are the names of object
- # files (relevant in 4.1 only).
- # 5. Eliminate entries with the "U" key letter; these are undefined
- # symbols (relevant in 4.1 only).
- # 6. Eliminate lines that contain the string "0|extern" preceded by space;
- # in 3.2.5, these are undefined symbols (address 0).
- # 7. Eliminate lines containing the "unamex" symbol. In 3.2.5, these
- # are also undefined symbols.
- # 8. If a line starts with ".", delete the leading ".", since this will
- # just cause confusion later.
- # 9. Eliminate everything after the first field in a line, so that we're
- # left with just the symbol name.
- nmopts="-g -C"
- osver=`uname -v`
- if test $osver -eq 3; then
- nmopts="-e"
- fi
- if test $osver -gt 3; then
- nmopts="$nmopts -X32_64"
- fi
- rm -f lib.exp
- echo "#! $outputFile" >lib.exp
- /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
- # If we're linking a .a file, then link all the objects together into a
- # single file "shr.o" and then put that into the archive. Otherwise link
- # the object files directly into the .a file.
- outputFile=`echo $args | sed -e 's/.*-o ([^ ]*).*/1/'`
- noDotA=`echo $outputFile | sed -e '/.a$/d'`
- echo "noDotA="$noDotA""
- if test "$noDotA" = "" ; then
- linkArgs=`echo $args | sed -e 's/-o .*.a /-o shr.o /'`
- echo $linkArgs
- eval $linkArgs
- echo ar cr $outputFile shr.o
- ar cr $outputFile shr.o
- rm -f shr.o
- else
- eval $args
- fi