1#!/bin/sh 2# 3# =========================================================================== 4# FILE: makexp_aix 5# TYPE: standalone executable 6# SYSTEM: AIX 3.2.5 and AIX 4 7# 8# DESCRIPTION: This script creates an export list of ALL global symbols 9# from a list of object or archive files. 10# 11# USAGE: makexp_aix <OutputFile> "<FirstLine>" <InputFile> ... 12# 13# where: 14# <OutputFile> is the target export list filename. 15# <FirstLine> is the path/file string to be appended 16# after the "#!" symbols in the first line of the 17# export file. Passing "" means deferred resolution. 18# <InputFile> is an object (.o) or an archive file (.a). 19# 20# HISTORY: 21# 3-Apr-1998 -- remove C++ entries of the form Class::method 22# Vladimir Marangozov 23# 24# 1-Jul-1996 -- added header information 25# Vladimir Marangozov 26# 27# 28-Jun-1996 -- initial code 28# Vladimir Marangozov (Vladimir.Marangozov@imag.fr) 29# ========================================================================== 30 31# Variables 32expFileName=$1 33toAppendStr=$2 34shift; shift; 35inputFiles=$* 36automsg="Generated automatically by makexp_aix" 37notemsg="NOTE: lists _all_ global symbols defined in the above file(s)." 38curwdir=`pwd` 39 40# Create the export file and setup the header info 41echo "#!"$toAppendStr > $expFileName 42echo "*" >> $expFileName 43echo "* $automsg (`date -u`)" >> $expFileName 44echo "*" >> $expFileName 45echo "* Base Directory: $curwdir" >> $expFileName 46echo "* Input File(s) : $inputFiles" >> $expFileName 47echo "*" >> $expFileName 48echo "* $notemsg" >> $expFileName 49echo "*" >> $expFileName 50 51# Extract the symbol list using 'nm' which produces quite 52# different output under AIX 4 than under AIX 3.2.5. 53# The following handles both versions by using a common flagset. 54# Here are some hidden tricks: 55# 1. Use /usr/ccs/bin/nm. Relevant to AIX 3.2.5 which has 56# another version under /usr/ucb/bin/nm. 57# 2. Use the -B flag to have a standard BSD representation 58# of the symbol list on both AIX 3.2.5 and AIX 4. The "-B" 59# flag is missing in the AIX 3.2.5 online usage help of 'nm'. 60# 3. Use the -x flag to have a hex representation of the symbol 61# values. This fills the leading whitespaces on AIX 4, 62# thus simplifying the sed statement. 63# 4. Eliminate all entries except those with either "B", "D" 64# or "T" key letters. We are interested only in the global 65# (extern) BSS, DATA and TEXT symbols. With the same statement 66# we eliminate object member lines relevant to AIX 4. 67# 5. Eliminate entries containing a dot. We can have a dot only 68# as a symbol prefix, but such symbols are undefined externs. 69# 6. Eliminate everything including the key letter, so that we're 70# left with just the symbol name. 71# 7. Eliminate all entries containing two colons, like Class::method 72# 73 74# Use -X32_64 if it appears to be implemented in this version of 'nm'. 75NM=/usr/ccs/bin/nm 76xopt=-X32_64 77$NM -e $xopt $1 >/dev/null 2>&1 || xopt="" 78 79$NM -Bex $xopt $inputFiles \ 80| sed -e '/ [^BDT] /d' -e '/\./d' -e 's/.* [BDT] //' -e '/::/d' \ 81| sort | uniq >> $expFileName 82