#!/bin/sh##   ========================================================================#   FILE:           ld_so_aix#   TYPE:           executable, uses makexp_aix#   SYSTEM:         AIX##   DESCRIPTION:    Creates a shareable .o from a set of pre-compiled #                   (unshared) .o files##   USAGE:          ld_so_aix [CC] [arguments]##   ARGUMENTS:      Same as for "ld". The following arguments are processed#                   or supplied by this script (those marked with an asterisk#                   can be overriden from command line):##                       Argument                     Default value#                   (*) -o [OutputFileName]          -o shr.o#                   (*) -e [EntryPointLabel]         -e init[OutputBaseName]#                   (*) -bE:[ExportFile]             -bE:[OutputBaseName].exp#                   (*) -bI:[ImportFile]             -bI:./python.exp#                       -bM:[ModuleType]             -bM:SRE#                       -bhalt:[Number]              -bhalt:4#                       -T[Number]                   -T512#                       -H[Number]                   -H512#                       -lm##                   The compiler specific ("-lc" or "-lc_r", "-lpthreads",...)#                   arguments will be automatically passed to "ld" according#                   to the CC command provided as a first argument to this#                   script. Usually, the same CC command was used to produce#                   the pre-compiled .o file(s).##   NOTES:          1.  Since "ld_so_aix" was originally written for building#                       shared modules for the Python interpreter, the -e and#                       -bI default values match Python's conventions. In#                       Python, the entry point for a shared module is based#                       on the module's name (e.g., the "mathmodule" will#                       expect an  entry point of "initmath").#                   2.  The script accepts multiple .o or .a input files and#                       creates a single (shared) output file. The export list#                       that is created is based on the output file's basename#                       with the suffix ".exp".#                   3.  The resulting shared object file is left in the#                       current directory.#                   4.  Uncommenting the "echo" lines gives detailed output#                       about the commands executed in the script.##                       #   HISTORY:        Oct-1996    -- Support added for multiple .o files --#                               -- and optional arguments processing.  --#                   Chris Myers (myers@tc.cornell.edu), Keith Kwok#                   (kkwok@tc.cornell.edu) and Vladimir Marangozov##                   Aug-6-1996  -- Take care of the compiler specific  --#                               -- args by leaving CC to invoke "ld".  --#                   Vladimir Marangozov##                   Jul-1-1996  -- Make sure to use /usr/ccs/bin/ld    --#                               -- Use makexp_aix for the export list. --#                   Vladimir Marangozov     (Vladimir.Marangozov@imag.fr)##                   Manus Hand (mhand@csn.net) -- Initial code -- 6/24/96#   ========================================================================# usage="Usage: ld_so_aix [CC command] [ld arguments]"if test ! -n "$*"; then  echo $usage; exit 2fi makexp=`dirname $0`/makexp_aix # Check for existence of compiler.CC=$1; shiftwhichcc=`which $CC` if test ! -x "$whichcc"; then  echo "ld_so_aix: Compiler '$CC' not found; exiting."  exit 2fi if test ! -n "$*"; then  echo $usage; exit 2fi # Default import file for Python# Can be overriden by providing a -bI: argument.impfile="./python.exp" # Parse argumentswhile test -n "$1"do  case "$1" in    -e | -Wl,-e)        if test -z "$2"; then	  echo "ld_so_aix: The -e flag needs a parameter; exiting."; exit 2	else	  shift; entry=$1	fi	;;    -e* | -Wl,-e*)	entry=`echo $1 | sed -e "s/-Wl,//" -e "s/-e//"`	;;    -o)	if test -z "$2"; then	  echo "ld_so_aix: The -o flag needs a parameter; exiting."; exit 2	else	  shift; objfile=$1	fi	;;    -o*)	objfile=`echo $1 | sed "s/-o//"`	;;    -bI:* | -Wl,-bI:*)	impfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bI://"`	;;    -bE:* | -Wl,-bE:*)	expfile=`echo $1 | sed -e "s/-Wl,//" -e "s/-bE://"`	;;    *.o | *.a)	objs="$objs $1"	args="$args $1"	;;    -bM:* | -Wl,-bM:* | -H* | -Wl,-H* | -T* | -Wl,-T* | -lm)	;;    *)        args="$args $1"	;;  esac  shiftdone  if test -z "$objs"; then  echo "ld_so_aix: No input files; exiting."  exit 2elif test ! -r "$impfile"; then  echo "ld_so_aix: Import file '$impfile' not found or not readable; exiting."  exit 2fi # If -o wasn't specified, assume "-o shr.o"if test -z "$objfile"; then  objfile=shr.ofi filename=`basename $objfile | sed "s/\.[^.]*$//"` # If -bE: wasn't specified, assume "-bE:$filename.exp"if test -z "$expfile"; then  expfile="$filename.exp"fi # Default entry symbol for Python modules = init[modulename]# Can be overriden by providing a -e argument.if test -z "$entry"; then  entry=init`echo $filename | sed "s/module.*//"`fi #echo "ld_so_aix: Debug info section"#echo "  -> output file : $objfile"#echo "  -> import file : $impfile"#echo "  -> export file : $expfile"#echo "  -> entry point : $entry"#echo "  -> object files: $objs"#echo "  -> CC arguments: $args" CCOPT="-Wl,-e$entry -Wl,-bE:$expfile -Wl,-bI:$impfile -Wl,-bhalt:4"CCOPT="$CCOPT -Wl,-bM:SRE -Wl,-T512 -Wl,-H512 -lm -o $objfile"# Note: to use dynamic libraries like libtcl8.4.so and libtk8.4.so # you may need to replace the second CCOPT line above with the following:# CCOPT="$CCOPT -Wl,-bM:SRE -Wl,-T512 -Wl,-H512 -brtl -bnortllib -lm -o $objfile" CCARGS="$args" # Export list generation.#echo $makexp $expfile "$objfile" $objs$makexp $expfile "$objfile" $objs # Perform the link.#echo $CC $CCOPT $CCARGS$CC $CCOPT $CCARGS # Delete the module's export list file.# Comment this line if you need it.rm -f $expfile