#!/bin/sh

#

# ===========================================================================

# FILE:         makexp_aix

# TYPE:         standalone executable

# SYSTEM:	AIX 3.2.5 and AIX 4

#

# DESCRIPTION:  This script creates an export list of ALL global symbols

#               from a list of object or archive files.

#

# USAGE:        makexp_aix <OutputFile> "<FirstLine>" <InputFile> ...

#

#               where:

#                      <OutputFile> is the target export list filename.

#                      <FirstLine> is the path/file string to be appended

#                         after the "#!" symbols in the first line of the

#                         export file. Passing "" means deferred resolution.

#                      <InputFile> is an object (.o) or an archive file (.a).

#

# HISTORY:

#		3-Apr-1998  -- remove C++ entries of the form Class::method

#		Vladimir Marangozov

#

#               1-Jul-1996  -- added header information

#               Vladimir Marangozov

#

#               28-Jun-1996 -- initial code

#               Vladimir Marangozov           (Vladimir.Marangozov@imag.fr)

# ==========================================================================

# Variables

expFileName=$1

toAppendStr=$2

shift; shift;

inputFiles=$*

automsg="Generated automatically by makexp_aix"

notemsg="NOTE: lists _all_ global symbols defined in the above file(s)."

curwdir=`pwd`

# Create the export file and setup the header info

echo "#!"$toAppendStr > $expFileName

echo "*" >> $expFileName

echo "* $automsg  (`date -u`)" >> $expFileName

echo "*" >> $expFileName

echo "* Base Directory: $curwdir" >> $expFileName

echo "* Input File(s) : $inputFiles" >> $expFileName

echo "*" >> $expFileName

echo "* $notemsg" >> $expFileName

echo "*" >> $expFileName

# Extract the symbol list using 'nm' which produces quite

# different output under AIX 4 than under AIX 3.2.5.

# The following handles both versions by using a common flagset.

# Here are some hidden tricks:

# 1. Use /usr/ccs/bin/nm. Relevant to AIX 3.2.5 which has

#    another version under /usr/ucb/bin/nm.

# 2. Use the -B flag to have a standard BSD representation

#    of the symbol list on both AIX 3.2.5 and AIX 4. The "-B"

#    flag is missing in the AIX 3.2.5 online usage help of 'nm'.

# 3. Use the -x flag to have a hex representation of the symbol

#    values. This fills the leading whitespaces on AIX 4,

#    thus simplifying the sed statement.

# 4. Eliminate all entries except those with either "B", "D"

#    or "T" key letters. We are interested only in the global

#    (extern) BSS, DATA and TEXT symbols. With the same statement

#    we eliminate object member lines relevant to AIX 4.

# 5. Eliminate entries containing a dot. We can have a dot only

#    as a symbol prefix, but such symbols are undefined externs.

# 6. Eliminate everything including the key letter, so that we're

#    left with just the symbol name.

# 7. Eliminate all entries containing two colons, like Class::method

#

# Use -X32_64 if it appears to be implemented in this version of 'nm'.

NM=/usr/ccs/bin/nm

xopt=-X32_64

$NM -e $xopt $1 >/dev/null 2>&1 || xopt=""

$NM -Bex $xopt $inputFiles					\

| sed -e '/ [^BDT] /d' -e '/\./d' -e 's/.* [BDT] //' -e '/::/d'	\

| sort | uniq >> $expFileName