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 (at] imag.fr) 29 # ========================================================================== 30 31 # Variables 32 expFileName=$1 33 toAppendStr=$2 34 shift; shift; 35 inputFiles=$* 36 automsg="Generated automatically by makexp_aix" 37 notemsg="NOTE: lists _all_ global symbols defined in the above file(s)." 38 curwdir=`pwd` 39 40 # Create the export file and setup the header info 41 echo "#!"$toAppendStr > $expFileName 42 echo "*" >> $expFileName 43 echo "* $automsg (`date -u`)" >> $expFileName 44 echo "*" >> $expFileName 45 echo "* Base Directory: $curwdir" >> $expFileName 46 echo "* Input File(s) : $inputFiles" >> $expFileName 47 echo "*" >> $expFileName 48 echo "* $notemsg" >> $expFileName 49 echo "*" >> $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'. 75 NM=/usr/ccs/bin/nm 76 xopt=-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
