src/os2/dllar.sh

   1 #!/bin/sh
   2 #
   3 # dllar - a tool to build both a .dll and an .a file
   4 # from a set of object (.o) files for EMX/OS2.
   5 #
   6 #  Written by Andrew Zabolotny, bit@freya.etu.ru
   7 #  Ported to Unix like shell by Stefan Neis, Stefan.Neis@t-online.de
   8 #
   9 #  This script will accept a set of files on the command line.
  10 #  All the public symbols from the .o files will be exported into
  11 #  a .DEF file, then linker will be run (through gcc) against them to
  12 #  build a shared library consisting of all given .o files. All libraries
  13 #  (.a) will be first decompressed into component .o files then act as
  14 #  described above. You can optionally give a description (-d "description")
  15 #  which will be put into .DLL. To see the list of accepted options (as well
  16 #  as command-line format) simply run this program without options. The .DLL
  17 #  is built to be imported by name (there is no guarantee that new versions
  18 #  of the library you build will have same ordinals for same symbols).
  19 #
  20 #  dllar is free software; you can redistribute it and/or modify
  21 #  it under the terms of the GNU General Public License as published by
  22 #  the Free Software Foundation; either version 2, or (at your option)
  23 #  any later version.
  24 #
  25 #  dllar is distributed in the hope that it will be useful,
  26 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  27 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28 #  GNU General Public License for more details.
  29 #
  30 #  You should have received a copy of the GNU General Public License
  31 #  along with dllar; see the file COPYING.  If not, write to the Free
  32 #  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  33 #  02111-1307, USA.
  34
  35 # To successfuly run this program you will need:
  36 #  - Current drive should have LFN support (HPFS, ext2, network, etc)
  37 #    (Sometimes dllar generates filenames which won't fit 8.3 scheme)
  38 #  - gcc
  39 #    (used to build the .dll)
  40 #  - emxexp
  41 #    (used to create .def file from .o files)
  42 #  - emximp
  43 #    (used to create .a file from .def file)
  44 #  - GNU text utilites (cat, sort, uniq)
  45 #    used to process emxexp output
  46 #  - GNU file utilities (mv, rm)
  47 #  - GNU sed
  48 #  - lxlite (optional, see flag below)
  49 #    (used for general .dll cleanup)
  50 #
  51
  52 flag_USE_LXLITE=1;
  53
  54 #
  55 # helper functions
  56 # basnam, variant of basename, which does _not_ remove the path, _iff_
  57 #                              second argument (suffix to remove) is given
  58 basnam(){
  59     case $# in
  60     1)
  61         echo $1 | sed 's/.*\///' | sed 's/.*\\//'
  62         ;;
  63     2)
  64         echo $1 | sed 's/'$2'$//'
  65         ;;
  66     *)
  67         echo "error in basnam $*"
  68         exit 8
  69         ;;
  70     esac
  71 }
  72
  73 # Cleanup temporary files and output
  74 CleanUp() {
  75     cd $curDir
  76     for i in $inputFiles ; do
  77         case $i in
  78         *!)
  79             rm -rf `basnam $i !`
  80             ;;
  81         *)
  82             ;;
  83         esac
  84     done
  85
  86     # Kill result in case of failure as there is just to many stupid make/nmake
  87     # things out there which doesn't do this.
  88     if [ $# -eq 0 ]; then
  89         rm -f $arcFile $arcFile2 $defFile $dllFile
  90     fi
  91 }
  92
  93 # Print usage and exit script with rc=1.
  94 PrintHelp() {
  95  echo 'Usage: dllar [-o[utput] output_file] [-i[mport] importlib_name]'
  96  echo '       [-d[escription] "dll descrption"] [-cc "CC"] [-f[lags] "CFLAGS"]'
  97  echo '       [-ord[inals]] -ex[clude] "symbol(s)"'
  98  echo '       [-libf[lags] "{INIT|TERM}{GLOBAL|INSTANCE}"] [-nocrt[dll]] [-nolxl[ite]]'
  99  echo '       [*.o] [*.a]'
 100  echo '*> "output_file" should have no extension.'
 101  echo '   If it has the .o, .a or .dll extension, it is automatically removed.'
 102  echo '   The import library name is derived from this and is set to "name".a,'
 103  echo '   unless overridden by -import'
 104  echo '*> "importlib_name" should have no extension.'
 105  echo '   If it has the .o, or .a extension, it is automatically removed.'
 106  echo '   This name is used as the import library name and may be longer and'
 107  echo '   more descriptive than the DLL name which has to follow the old '
 108  echo '   8.3 convention of FAT.'
 109  echo '*> "cc" is used to use another GCC executable.   (default: gcc.exe)'
 110  echo '*> "flags" should be any set of valid GCC flags. (default: -s -Zcrtdll)'
 111  echo '   These flags will be put at the start of GCC command line.'
 112  echo '*> -ord[inals] tells dllar to export entries by ordinals. Be careful.'
 113  echo '*> -ex[clude] defines symbols which will not be exported. You can define'
 114  echo '   multiple symbols, for example -ex "myfunc yourfunc _GLOBAL*".'
 115  echo '   If the last character of a symbol is "*", all symbols beginning'
 116  echo '   with the prefix before "*" will be exclude, (see _GLOBAL* above).'
 117  echo '*> -libf[lags] can be used to add INITGLOBAL/INITINSTANCE and/or'
 118  echo '   TERMGLOBAL/TERMINSTANCE flags to the dynamically-linked library.'
 119  echo '*> -nocrt[dll] switch will disable linking the library against emx''s'
 120  echo '   C runtime DLLs.'
 121  echo '*> -nolxl[ite] switch will disable running lxlite on the resulting DLL.'
 122  echo '*> All other switches (for example -L./ or -lmylib) will be passed'
 123  echo '   unchanged to GCC at the end of command line.'
 124  echo '*> If you create a DLL from a library and you do not specify -o,'
 125  echo '   the basename for DLL and import library will be set to library name,'
 126  echo '   the initial library will be renamed to 'name'_s.a (_s for static)'
 127  echo '   i.e. "dllar gcc.a" will create gcc.dll and gcc.a, and the initial'
 128  echo '   library will be renamed into gcc_s.a.'
 129  echo '--------'
 130  echo 'Example:'
 131  echo '   dllar -o gcc290.dll libgcc.a -d "GNU C runtime library" -ord'
 132  echo '    -ex "__main __ctordtor*" -libf "INITINSTANCE TERMINSTANCE"'
 133  CleanUp
 134  exit 1
 135 }
 136
 137 # Execute a command.
 138 # If exit code of the commnad <> 0 CleanUp() is called and we'll exit the script.
 139 # @Uses    Whatever CleanUp() uses.
 140 doCommand() {
 141     echo "$*"
 142     eval $*
 143     rcCmd=$?
 144
 145     if [ $rcCmd -ne 0 ]; then
 146         echo "command failed, exit code="$rcCmd
 147         CleanUp
 148         exit $rcCmd
 149     fi
 150 }
 151
 152 # main routine
 153 # setup globals
 154 cmdLine=$*
 155 outFile=""
 156 outimpFile=""
 157 inputFiles=""
 158 description=""
 159 CC=gcc.exe
 160 CFLAGS="-s -Zcrtdll"
 161 EXTRA_CFLAGS=""
 162 EXPORT_BY_ORDINALS=0
 163 exclude_symbols=""
 164 library_flags=""
 165 curDir=`pwd`
 166 curDirS=curDir
 167 case $curDirS in
 168 */)
 169   ;;
 170 *)
 171   curDirS=${curDirS}"/"
 172   ;;
 173 esac
 174 # Parse commandline
 175 libsToLink=0
 176 omfLinking=0
 177 while [ $1 ]; do
 178     case $1 in
 179     -ord*)
 180         EXPORT_BY_ORDINALS=1;
 181         ;;
 182     -o*)
 183         shift
 184         outFile=$1
 185         ;;
 186     -i*)
 187         shift
 188         outimpFile=$1
 189         ;;
 190     -d*)
 191         shift
 192         description=$1
 193         ;;
 194     -f*)
 195         shift
 196         CFLAGS=$1
 197         ;;
 198     -c*)
 199         shift
 200         CC=$1
 201         ;;
 202     -h*)
 203         PrintHelp
 204         ;;
 205     -ex*)
 206         shift
 207         exclude_symbols=${exclude_symbols}$1" "
 208         ;;
 209     -libf*)
 210         shift
 211         library_flags=${library_flags}$1" "
 212         ;;
 213     -nocrt*)
 214         CFLAGS="-s"
 215         ;;
 216     -nolxl*)
 217         flag_USE_LXLITE=0
 218         ;;
 219     -* | /*)
 220         case $1 in
 221         -L* | -l*)
 222             libsToLink=1
 223             ;;
 224         -Zomf)
 225             omfLinking=1
 226             ;;
 227         *)
 228             ;;
 229         esac
 230         EXTRA_CFLAGS=${EXTRA_CFLAGS}" "$1
 231         ;;
 232     *.dll)
 233         EXTRA_CFLAGS="${EXTRA_CFLAGS} `basnam $1 .dll`"
 234         if [ $omfLinking -eq 1 ]; then
 235             EXTRA_CFLAGS="${EXTRA_CFLAGS}.lib"
 236         else
 237             EXTRA_CFLAGS="${EXTRA_CFLAGS}.a"
 238         fi
 239         ;;
 240     *)
 241         found=0;
 242         if [ $libsToLink -ne 0 ]; then
 243             EXTRA_CFLAGS=${EXTRA_CFLAGS}" "$1
 244         else
 245             for file in $1 ; do
 246                 if [ -f $file ]; then
 247                     inputFiles="${inputFiles} $file"
 248                     found=1
 249                 fi
 250             done
 251             if [ $found -eq 0 ]; then
 252                 echo "ERROR: No file(s) found: "$1
 253                 exit 8
 254             fi
 255         fi
 256       ;;
 257     esac
 258     shift
 259 done # iterate cmdline words
 260
 261 #
 262 if [ -z "$inputFiles" ]; then
 263     echo "dllar: no input files"
 264     PrintHelp
 265 fi
 266
 267 # Now extract all .o files from .a files
 268 newInputFiles=""
 269 for file in $inputFiles ; do
 270     case $file in
 271     *.a | *.lib)
 272         case $file in
 273         *.a)
 274             suffix=".a"
 275             AR="ar"
 276             ;;
 277         *.lib)
 278             suffix=".lib"
 279             AR="emxomfar"
 280             EXTRA_CFLAGS="$EXTRA_CFLAGS -Zomf"
 281             ;;
 282         *)
 283             ;;
 284         esac
 285         dirname=`basnam $file $suffix`"_%"
 286         mkdir $dirname
 287         if [ $? -ne 0 ]; then
 288             echo "Failed to create subdirectory ./$dirname"
 289             CleanUp
 290             exit 8;
 291         fi
 292         # Append '!' to indicate archive
 293         newInputFiles="$newInputFiles ${dirname}!"
 294         doCommand "cd $dirname; $AR x ../$file"
 295         cd $curDir
 296         found=0;
 297         for subfile in $dirname/*.o* ; do
 298             if [ -f $subfile ]; then
 299                 found=1
 300                 if [ -s $subfile ]; then
 301                     # FIXME: This should be: is file size > 32 byte, _not_ > 0!
 302                     newInputFiles="$newInputFiles $subfile"
 303                 fi
 304             fi
 305         done
 306         if [ $found -eq 0 ]; then
 307             echo "WARNING: there are no files in archive \'$file\'"
 308         fi
 309         ;;
 310     *)
 311         newInputFiles="${newInputFiles} $file"
 312         ;;
 313     esac
 314 done
 315 inputFiles="$newInputFiles"
 316
 317 # Output filename(s).
 318 do_backup=0;
 319 if [ -z $outFile ]; then
 320     do_backup=1;
 321     set outFile $inputFiles; outFile=$2
 322 fi
 323
 324 # If it is an archive, remove the '!' and the '_%' suffixes
 325 case $outFile in
 326 *_%!)
 327     outFile=`basnam $outFile _%!`
 328     ;;
 329 *)
 330     ;;
 331 esac
 332 case $outFile in
 333 *.dll)
 334     outFile=`basnam $outFile .dll`
 335     ;;
 336 *.DLL)
 337     outFile=`basnam $outFile .DLL`
 338     ;;
 339 *.o)
 340     outFile=`basnam $outFile .o`
 341     ;;
 342 *.obj)
 343     outFile=`basnam $outFile .obj`
 344     ;;
 345 *.a)
 346     outFile=`basnam $outFile .a`
 347     ;;
 348 *.lib)
 349     outFile=`basnam $outFile .lib`
 350     ;;
 351 *)
 352     ;;
 353 esac
 354 case $outimpFile in
 355 *.a)
 356     outimpFile=`basnam $outimpFile .a`
 357     ;;
 358 *.lib)
 359     outimpFile=`basnam $outimpFile .lib`
 360     ;;
 361 *)
 362     ;;
 363 esac
 364 if [ -z $outimpFile ]; then
 365     outimpFile=$outFile
 366 fi
 367 defFile="${outFile}.def"
 368 arcFile="${outimpFile}.a"
 369 arcFile2="${outimpFile}.lib"
 370
 371 #create $dllFile as something matching 8.3 restrictions,
 372 dllFile="$outFile"
 373 case $dllFile in
 374 *wx_base_*)
 375     dllFile=`echo $dllFile | sed 's/base_\(...\)/b\1/'`
 376     ;;
 377 *wx_*_*)
 378     dllFile=`echo $dllFile | sed 's/_\(..\)[^_]*_\(..\)[^-]*-/\1\2/'`
 379     ;;
 380 *)
 381     ;;
 382 esac
 383 dllFile="`echo $dllFile | sed 's/\.//' | sed 's/_//' | sed 's/-//'`"
 384
 385
 386 if [ $do_backup -ne 0 ] ; then
 387     if [ -f $arcFile ] ; then
 388         doCommand "mv $arcFile ${outFile}_s.a"
 389     fi
 390     if [ -f $arcFile2 ] ; then
 391         doCommand "mv $arcFile2 ${outFile}_s.lib"
 392     fi
 393 fi
 394
 395 # Extract public symbols from all the object files.
 396 tmpdefFile=${defFile}_%
 397 rm -f $tmpdefFile
 398 for file in $inputFiles ; do
 399     case $file in
 400     *!)
 401         ;;
 402     *)
 403         doCommand "emxexp -u $file >> $tmpdefFile"
 404         ;;
 405     esac
 406 done
 407
 408 # Create the def file.
 409 rm -f $defFile
 410 echo "LIBRARY `basnam $dllFile` $library_flags" >> $defFile
 411 dllFile="$dllFile.dll"
 412 if [ -n $description ]; then
 413     echo "DESCRIPTION  \"${description}\"" >> $defFile
 414 fi
 415 echo "EXPORTS" >> $defFile
 416
 417 doCommand "cat $tmpdefFile | sort.exe | uniq.exe > ${tmpdefFile}%"
 418 grep -v "^ *;" < ${tmpdefFile}% | grep -v "^ *$" >$tmpdefFile
 419
 420 # Checks if the export is ok or not.
 421 for word in $exclude_symbols; do
 422     grep -v $word < $tmpdefFile >${tmpdefFile}%
 423     mv ${tmpdefFile}% $tmpdefFile
 424 done
 425
 426
 427 if [ $EXPORT_BY_ORDINALS -ne 0 ]; then
 428     sed "=" < $tmpdefFile | \
 429     sed '
 430       N
 431       : loop
 432       s/^\([0-9]\+\)\([^;]*\)\(;.*\)\?/\2 @\1 NONAME/
 433       t loop
 434     ' > ${tmpdefFile}%
 435     grep -v "^ *$" < ${tmpdefFile}% > $tmpdefFile
 436 else
 437     rm -f ${tmpdefFile}%
 438 fi
 439 cat $tmpdefFile >> $defFile
 440 rm -f $tmpdefFile
 441
 442 # Do linking, create implib, and apply lxlite.
 443 gccCmdl="";
 444 for file in $inputFiles ; do
 445     case $file in
 446     *!)
 447         ;;
 448     *)
 449         gccCmdl="$gccCmdl $file"
 450         ;;
 451     esac
 452 done
 453 doCommand "$CC $CFLAGS -Zdll -o $dllFile $defFile $gccCmdl $EXTRA_CFLAGS"
 454 touch "${outFile}.dll"
 455
 456 doCommand "emximp -o $arcFile $defFile"
 457 if [ $flag_USE_LXLITE -ne 0 ]; then
 458     add_flags="";
 459     if [ $EXPORT_BY_ORDINALS -ne 0 ]; then
 460         add_flags="-ynd"
 461     fi
 462     doCommand "lxlite -cs -t: -mrn -mln $add_flags $dllFile"
 463 fi
 464 doCommand "emxomf -s -l $arcFile"
 465
 466 # Successful exit.
 467 CleanUp 1
 468 exit 0