src/cacaoh/cacaoh.c

   1 /* src/cacaoh/cacaoh.c - main for header generation (cacaoh)
   2
   3    Copyright (C) 1996-2005, 2006, 2007, 2008
   4    CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
   5
   6    This file is part of CACAO.
   7
   8    This program is free software; you can redistribute it and/or
   9    modify it under the terms of the GNU General Public License as
  10    published by the Free Software Foundation; either version 2, or (at
  11    your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful, but
  14    WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16    General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21    02110-1301, USA.
  22
  23 */
  24
  25
  26 #include "config.h"
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31
  32 #include "vm/types.h"
  33
  34 #include "cacaoh/headers.h"
  35
  36 #include "mm/gc.hpp"
  37 #include "mm/memory.h"
  38
  39 #include "toolbox/hashtable.h"
  40 #include "toolbox/logging.h"
  41
  42 #include "vm/global.h"
  43 #include "vm/string.hpp"
  44 #include "vm/vm.hpp"
  45
  46 #include "vmcore/classcache.h"
  47 #include "vmcore/loader.h"
  48 #include "vmcore/options.h"
  49 #include "vmcore/statistics.h"
  50 #include "vmcore/suck.h"
  51
  52
  53 /* define cacaoh options ******************************************************/
  54
  55 enum {
  56         OPT_HELP,
  57         OPT_VERSION,
  58         OPT_VERBOSE,
  59         OPT_DIRECTORY,
  60         OPT_CLASSPATH,
  61         OPT_BOOTCLASSPATH,
  62
  63         DUMMY
  64 };
  65
  66
  67 opt_struct opts[] = {
  68         { "help",             false, OPT_HELP          },
  69         { "version",          false, OPT_VERSION       },
  70         { "verbose",          false, OPT_VERBOSE       },
  71         { "d",                true,  OPT_DIRECTORY     },
  72         { "classpath",        true,  OPT_CLASSPATH     },
  73         { "bootclasspath",    true,  OPT_BOOTCLASSPATH },
  74         { NULL,               false, 0                 }
  75 };
  76
  77
  78 /* usage ***********************************************************************
  79
  80    Obviously prints usage information of cacaoh.
  81
  82 *******************************************************************************/
  83
  84 void usage(void)
  85 {
  86         printf("Usage: cacaoh [options] <classes>\n"
  87                    "\n"
  88                    "Options:\n"
  89                    "    -help                 Print this message\n"
  90                    "    -classpath <path>     \n"
  91                    "    -bootclasspath <path> \n"
  92                    "    -d <dir>              Output directory\n"
  93                    "    -version              Print version information\n"
  94                    "    -verbose              Enable verbose output\n");
  95
  96         /* exit with error code */
  97
  98         exit(1);
  99 }
 100
 101
 102 /* version *********************************************************************
 103
 104    Prints cacaoh version information.
 105
 106 *******************************************************************************/
 107
 108 static void version(void)
 109 {
 110         printf("cacaoh version "VERSION"\n");
 111         printf("Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,\n");
 112         printf("C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,\n");
 113         printf("E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,\n");
 114         printf("J. Wenninger, Institut f. Computersprachen - TU Wien\n\n");
 115
 116         printf("This program is free software; you can redistribute it and/or\n");
 117         printf("modify it under the terms of the GNU General Public License as\n");
 118         printf("published by the Free Software Foundation; either version 2, or (at\n");
 119         printf("your option) any later version.\n\n");
 120
 121         printf("This program is distributed in the hope that it will be useful, but\n");
 122         printf("WITHOUT ANY WARRANTY; without even the implied warranty of\n");
 123         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n");
 124         printf("General Public License for more details.\n");
 125
 126         exit(0);
 127 }
 128
 129
 130 /* forward declarations *******************************************************/
 131
 132 static JavaVMInitArgs *cacaoh_options_prepare(int argc, char **argv);
 133
 134
 135 /* main ************************************************************************
 136
 137    Main program.
 138
 139 *******************************************************************************/
 140
 141 int main(int argc, char **argv)
 142 {
 143         JavaVMInitArgs *vm_args;
 144         s4 i, j;
 145         s4 opt;
 146         classinfo *c;
 147         char *opt_directory;
 148
 149         /********** internal (only used by main) *****************************/
 150
 151         char *bootclasspath;
 152         char *classpath;
 153         char *cp;
 154         s4    cplen;
 155
 156         if (argc < 2)
 157                 usage();
 158
 159         /* set the bootclasspath */
 160
 161         cp = getenv("BOOTCLASSPATH");
 162
 163         if (cp) {
 164                 bootclasspath = MNEW(char, strlen(cp) + strlen("0"));
 165                 strcpy(bootclasspath, cp);
 166         }
 167         else {
 168                 cplen =
 169 #if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
 170                         strlen(CACAO_VM_ZIP) +
 171                         strlen(":") +
 172 #endif
 173                         strlen(JAVA_RUNTIME_LIBRARY_CLASSES) +
 174                         strlen("0");
 175
 176                 bootclasspath = MNEW(char, cplen);
 177 #if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
 178                 strcat(bootclasspath, CACAO_VM_ZIP);
 179                 strcat(bootclasspath, ":");
 180 #endif
 181                 strcat(bootclasspath, JAVA_RUNTIME_LIBRARY_CLASSES);
 182         }
 183
 184
 185         /* set the classpath */
 186
 187         cp = getenv("CLASSPATH");
 188
 189         if (cp != NULL) {
 190                 classpath = MNEW(char, strlen(cp) + strlen("0"));
 191                 strcat(classpath, cp);
 192         }
 193         else {
 194                 classpath = MNEW(char, strlen(".") + strlen("0"));
 195                 strcpy(classpath, ".");
 196         }
 197
 198
 199         /* initialize options with default values */
 200
 201         opt_verbose = false;
 202         opt_directory = NULL;
 203
 204
 205         /* parse the options ******************************************************/
 206
 207         vm_args = cacaoh_options_prepare(argc, argv);
 208
 209         while ((opt = options_get(opts, vm_args)) != OPT_DONE) {
 210                 switch (opt) {
 211                 case OPT_IGNORE:
 212                         break;
 213
 214                 case OPT_HELP:
 215                         usage();
 216                         break;
 217
 218                 case OPT_CLASSPATH:
 219                         /* forget old classpath and set the argument as new classpath */
 220                         MFREE(classpath, char, strlen(classpath));
 221
 222                         classpath = MNEW(char, strlen(opt_arg) + strlen("0"));
 223                         strcpy(classpath, opt_arg);
 224                         break;
 225
 226                 case OPT_BOOTCLASSPATH:
 227                         /* Forget default bootclasspath and set the argument as
 228                            new boot classpath. */
 229                         MFREE(bootclasspath, char, strlen(bootclasspath));
 230
 231                         bootclasspath = MNEW(char, strlen(opt_arg) + strlen("0"));
 232                         strcpy(bootclasspath, opt_arg);
 233                         break;
 234
 235                 case OPT_DIRECTORY:
 236                         opt_directory = MNEW(char, strlen(opt_arg) + strlen("0"));
 237                         strcpy(opt_directory, opt_arg);
 238                         break;
 239
 240                 case OPT_VERSION:
 241                         version();
 242                         break;
 243
 244                 case OPT_VERBOSE:
 245                         opt_verbose = true;
 246                         loadverbose = true;
 247                         break;
 248
 249                 default:
 250                         usage();
 251                 }
 252         }
 253
 254         /**************************** Program start **************************/
 255
 256         if (opt_verbose) {
 257                 log_init(NULL);
 258                 log_println("Java - header-generator started");
 259         }
 260
 261         utf8_init();
 262
 263         /* initialize the classcache hashtable stuff: lock, hashtable
 264            (must be done _after_ threads_preinit) */
 265
 266         if (!classcache_init())
 267                 vm_abort("classcache_init failed\n");
 268
 269         /* initialize the loader with bootclasspath (must be done _after_
 270            thread_preinit) */
 271
 272         if (!suck_init())
 273                 vm_abort("suck_init failed\n");
 274
 275         suck_add(bootclasspath);
 276
 277         /* Also add the normal classpath, so the bootstrap class loader
 278            can find the files. */
 279
 280         suck_add(classpath);
 281
 282         /* AFTER: classcache_init */
 283
 284         loader_preinit();
 285         loader_init();
 286
 287
 288         /* load Java classes ******************************************************/
 289
 290         for (i = opt_index; i < vm_args->nOptions; i++) {
 291                 cp = vm_args->options[i].optionString;
 292
 293                 /* convert classname */
 294
 295                 for (j = strlen(cp) - 1; j >= 0; j--) {
 296                         switch (cp[j]) {
 297                         case '.':
 298                                 cp[j] = '/';
 299                                 break;
 300                         case '_':
 301                                 cp[j] = '$';
 302                                 break;
 303                         }
 304                 }
 305
 306                 /* exceptions are catched with new_exception call */
 307
 308                 if (!(c = load_class_bootstrap(utf_new_char(cp))))
 309                         vm_abort("java.lang.NoClassDefFoundError: %s\n", cp);
 310
 311                 if (!link_class(c))
 312                         vm_abort("java.lang.LinkageError: %s\n", cp);
 313
 314                 headerfile_generate(c, opt_directory);
 315         }
 316
 317         /************************ Release all resources **********************/
 318
 319         loader_close();
 320
 321         if (opt_verbose) {
 322                 log_println("Java - header-generator stopped");
 323 #if defined(ENABLE_STATISTICS)
 324                 statistics_print_memory_usage();
 325 #endif
 326         }
 327
 328         return 0;
 329 }
 330
 331
 332 /* cacaoh_options_prepare ******************************************************
 333
 334    Prepare the JavaVMInitArgs.
 335
 336 *******************************************************************************/
 337
 338 static JavaVMInitArgs *cacaoh_options_prepare(int argc, char **argv)
 339 {
 340         JavaVMInitArgs *vm_args;
 341         s4              i;
 342
 343         vm_args = NEW(JavaVMInitArgs);
 344
 345         vm_args->nOptions = argc - 1;
 346         vm_args->options  = MNEW(JavaVMOption, argc);
 347
 348         for (i = 1; i < argc; i++)
 349                 vm_args->options[i - 1].optionString = argv[i];
 350
 351         return vm_args;
 352 }
 353
 354
 355 /*
 356  * These are local overrides for various environment variables in Emacs.
 357  * Please do not remove this and leave it at the end of the file, where
 358  * Emacs will automagically detect them.
 359  * ---------------------------------------------------------------------
 360  * Local variables:
 361  * mode: c
 362  * indent-tabs-mode: t
 363  * c-basic-offset: 4
 364  * tab-width: 4
 365  * End:
 366  */