| #!/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 |