src/native/tools/gennativetable.c

   1 /* src/native/tools/gennativetable.c - generate nativetable.h for native.c
   2
   3    Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    Contact: cacao@cacaojvm.org
  26
  27    Authors: Christian Thalinger
  28
  29    Changes:
  30
  31    $Id: gennativetable.c 4357 2006-01-22 23:33:38Z twisti $
  32
  33 */
  34
  35
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39
  40 #include "config.h"
  41 #include "vm/types.h"
  42
  43 #include "cacaoh/headers.h"
  44 #include "mm/boehm.h"
  45 #include "mm/memory.h"
  46
  47 #if defined(USE_THREADS)
  48 # if defined(NATIVE_THREADS)
  49 #  include "threads/native/threads.h"
  50 # else
  51 #  include "threads/green/threads.h"
  52 # endif
  53 #endif
  54
  55 #include "toolbox/chain.h"
  56 #include "vm/classcache.h"
  57 #include "vm/exceptions.h"
  58 #include "vm/global.h"
  59 #include "vm/loader.h"
  60 #include "vm/tables.h"
  61
  62
  63 int main(int argc, char **argv)
  64 {
  65         char *bootclasspath;
  66         char *cp;
  67
  68         classcache_name_entry *nmen;
  69         classcache_class_entry *clsen;
  70         classinfo *c;
  71         s4 i;
  72         s4 j;
  73         u4 slot;
  74         methodinfo *m;
  75         methodinfo *m2;
  76         bool nativelyoverloaded;
  77
  78         u4 heapmaxsize = 4 * 1024 * 1024;
  79         u4 heapstartsize = 100 * 1024;
  80         void *dummy;
  81
  82         /* set the bootclasspath */
  83
  84         cp = getenv("BOOTCLASSPATH");
  85         if (cp) {
  86                 bootclasspath = MNEW(char, strlen(cp) + 1);
  87                 strcpy(bootclasspath, cp);
  88         }
  89
  90         /* initialize the garbage collector */
  91         gc_init(heapmaxsize, heapstartsize);
  92
  93         tables_init();
  94
  95         suck_init(bootclasspath);
  96
  97 #if defined(USE_THREADS)
  98 #if defined(NATIVE_THREADS)
  99         initThreadsEarly();
 100 #endif
 101         initLocks();
 102 #endif
 103
 104         /* initialize some cacao subsystems */
 105
 106         utf8_init();
 107         loader_init((u1 *) &dummy);
 108
 109
 110         /*********************** Load JAVA classes  **************************/
 111
 112         nativemethod_chain = chain_new();
 113         ident_chain = chain_new();
 114
 115         /* load all classes from bootclasspath */
 116
 117         loader_load_all_classes();
 118
 119         /* link all classes */
 120
 121         for (slot = 0; slot < classcache_hash.size; slot++) {
 122                 nmen = (classcache_name_entry *) classcache_hash.ptr[slot];
 123
 124                 for (; nmen; nmen = nmen->hashlink) {
 125                         /* iterate over all class entries */
 126
 127                         for (clsen = nmen->classes; clsen; clsen = clsen->next) {
 128                                 c = clsen->classobj;
 129
 130                                 if (!c)
 131                                         continue;
 132
 133                                 /* exceptions are catched with new_exception call */
 134
 135                                 if (!c->linked)
 136                                         (void) link_class(c);
 137
 138                                 /* find overloaded methods */
 139
 140                                 for (i = 0; i < c->methodscount; i++) {
 141                                         m = &(c->methods[i]);
 142
 143                                         if (!(m->flags & ACC_NATIVE))
 144                                                 continue;
 145
 146                                         if (!m->nativelyoverloaded) {
 147                                                 nativelyoverloaded = false;
 148
 149                                                 for (j = i + 1; j < c->methodscount; j++) {
 150                                                         m2 = &(c->methods[j]);
 151
 152                                                         if (!(m2->flags & ACC_NATIVE))
 153                                                                 continue;
 154
 155                                                         if (m->name == m2->name) {
 156                                                                 m2->nativelyoverloaded = true;
 157                                                                 nativelyoverloaded = true;
 158                                                         }
 159                                                 }
 160
 161                                                 m->nativelyoverloaded = nativelyoverloaded;
 162                                         }
 163                                 }
 164
 165                                 for (j = 0; j < c->methodscount; j++) {
 166                                         m = &(c->methods[j]);
 167
 168                                         if (m->flags & ACC_NATIVE) {
 169                                                 chain_addlast(nativemethod_chain, m);
 170                                         }
 171                                 }
 172                         }
 173                 }
 174         }
 175
 176         /* create table of native-methods */
 177
 178         file = stdout;
 179
 180         fprintf(file, "/* This file is machine generated, don't edit it! */\n\n");
 181
 182         m = chain_first(nativemethod_chain);
 183
 184         while (m) {
 185                 printmethod(m);
 186                 m = chain_next(nativemethod_chain);
 187         }
 188
 189         fprintf(file, "static nativeref nativetable[] = {\n");
 190
 191         m = chain_first(nativemethod_chain);
 192
 193         while (m) {
 194         fprintf(file, "   { \"");
 195
 196                 print_classname(m->class);
 197                 fprintf(file, "\",\n     \"");
 198                 utf_fprint(file, m->name);
 199                 fprintf(file, "\",\n     \"");
 200                 utf_fprint(file, m->descriptor);
 201                 fprintf(file, "\",\n     ");
 202
 203                 if (m->flags & ACC_STATIC)
 204                         fprintf(file, "true");
 205                 else
 206                         fprintf(file, "false");
 207
 208                 fprintf(file, ",\n     ");
 209                 fprintf(file, "(functionptr) Java_");
 210                 printID(m->class->name);
 211                 fprintf(file, "_");
 212                 printID(m->name);
 213
 214                 if (m->nativelyoverloaded)
 215                         printOverloadPart(m->descriptor);
 216
 217                 fprintf(file,"\n   },\n");
 218
 219                 m = chain_next(nativemethod_chain);
 220         }
 221
 222         chain_free(nativemethod_chain);
 223         chain_free(ident_chain);
 224
 225         fprintf(file, "};\n");
 226
 227         fclose(file);
 228
 229         /* release all resources */
 230
 231         loader_close();
 232
 233         /* everything is ok */
 234
 235         return 0;
 236 }
 237
 238
 239 /*
 240  * These are local overrides for various environment variables in Emacs.
 241  * Please do not remove this and leave it at the end of the file, where
 242  * Emacs will automagically detect them.
 243  * ---------------------------------------------------------------------
 244  * Local variables:
 245  * mode: c
 246  * indent-tabs-mode: t
 247  * c-basic-offset: 4
 248  * tab-width: 4
 249  * End:
 250  */