src/native/tools/gennativetable.c

   1 /* gennativetable.c - generate nativetable.h for native.c
   2
   3    Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
   4    R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
   5    C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
   6    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., 59 Temple Place - Suite 330, Boston, MA
  23    02111-1307, USA.
  24
  25    Contact: cacao@complang.tuwien.ac.at
  26
  27    Authors: Christian Thalinger
  28
  29    Changes:
  30
  31    $Id: gennativetable.c 1735 2004-12-07 14:33:27Z twisti $
  32
  33 */
  34
  35
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39
  40 #include "config.h"
  41 #include "types.h"
  42 #include "cacaoh/headers.h"
  43 #include "mm/boehm.h"
  44 #include "mm/memory.h"
  45
  46 #if defined(USE_THREADS)
  47 # if defined(NATIVE_THREADS)
  48 #  include "threads/native/threads.h"
  49 # else
  50 #  include "threads/green/threads.h"
  51 # endif
  52 #endif
  53
  54 #include "toolbox/chain.h"
  55 #include "vm/exceptions.h"
  56 #include "vm/global.h"
  57 #include "vm/loader.h"
  58 #include "vm/tables.h"
  59
  60
  61 int main(int argc, char **argv)
  62 {
  63         s4 i, j, k;
  64         char classpath[500] = "";
  65         char *cp;
  66         classinfo *c;
  67         methodinfo *m;
  68         methodinfo *m2;
  69         bool nativelyoverloaded;
  70         u4 heapmaxsize = 2 * 1024 * 1024;
  71         u4 heapstartsize = 100 * 1024;
  72         void *dummy;
  73
  74         /* XXX change me */
  75         char classname[1024];
  76
  77         if (argc < 2) {
  78                 printf("Usage: gennativetable class [class...]\n");
  79                 exit(1);
  80         }
  81
  82         cp = getenv("CLASSPATH");
  83         if (cp) {
  84                 strcpy(classpath + strlen(classpath), ":");
  85                 strcpy(classpath + strlen(classpath), cp);
  86         }
  87
  88         /* initialize the garbage collector */
  89         gc_init(heapmaxsize, heapstartsize);
  90
  91         tables_init();
  92
  93         suck_init(classpath);
  94
  95 #if defined(USE_THREADS)
  96 #if defined(NATIVE_THREADS)
  97         initThreadsEarly();
  98 #endif
  99         initLocks();
 100 #endif
 101
 102         loader_init((u1 *) &dummy);
 103
 104
 105         /*********************** Load JAVA classes  **************************/
 106
 107         nativeclass_chain = chain_new();
 108         nativemethod_chain = chain_new();
 109
 110         for (i = 1; i < argc; i++) {
 111                 cp = argv[i];
 112
 113                 /* convert classname */
 114                 for (j = strlen(cp) - 1; j >= 0; j--) {
 115                         switch (cp[j]) {
 116                         case '.': cp[j] = '/';
 117                                 break;
 118                         case '_': cp[j] = '$';
 119                         }
 120                 }
 121
 122                 c = class_new(utf_new_char(cp));
 123
 124                 /* exceptions are catched with new_exception call */
 125                 class_load(c);
 126                 class_link(c);
 127
 128                 chain_addlast(nativeclass_chain, c);
 129
 130                 /* find overloaded methods */
 131                 for (j = 0; j < c->methodscount; j++) {
 132                         m = &(c->methods[j]);
 133
 134                         if (!(m->flags & ACC_NATIVE))
 135                                 continue;
 136
 137                         if (!m->nativelyoverloaded) {
 138                                 nativelyoverloaded = false;
 139
 140                                 for (k = j + 1; k < c->methodscount; k++) {
 141                                         m2 = &(c->methods[k]);
 142
 143                                         if (!(m2->flags & ACC_NATIVE))
 144                                                 continue;
 145
 146                                         if (m->name == m2->name) {
 147                                                 m2->nativelyoverloaded = true;
 148                                                 nativelyoverloaded = true;
 149                                         }
 150                                 }
 151                                 m->nativelyoverloaded = nativelyoverloaded;
 152                         }
 153                 }
 154
 155                 for (j = 0; j < c->methodscount; j++) {
 156                         m = &(c->methods[j]);
 157
 158                         if (m->flags & ACC_NATIVE) {
 159                                 chain_addlast(nativemethod_chain, m);
 160                         }
 161                 }
 162         }
 163
 164         /* create table of native-methods */
 165
 166         file = stdout;
 167
 168         fprintf(file, "/* Table of native methods: nativetables.inc */\n");
 169         fprintf(file, "/* This file is machine generated, don't edit it! */\n\n");
 170
 171         fprintf(file, "#include \"config.h\"\n");
 172
 173         c = chain_first(nativeclass_chain);
 174         while (c) {
 175                 gen_header_filename(classname, c->name);
 176                 fprintf(file, "#include \"native/include/%s.h\"\n", classname);
 177                 c = chain_next(nativeclass_chain);
 178         }
 179         chain_free(nativeclass_chain);
 180
 181         fprintf(file, "\n\n#include \"native/native.h\"\n\n");
 182         fprintf(file, "#if defined(STATIC_CLASSPATH)\n\n");
 183         fprintf(file, "static nativeref nativetable[] = {\n");
 184
 185         m = chain_first(nativemethod_chain);
 186         while (m) {
 187                 printnativetableentry(m);
 188                 m = chain_next(nativemethod_chain);
 189         }
 190         chain_free(nativemethod_chain);
 191
 192         fprintf(file, "};\n");
 193         fprintf(file, "\n#else\n\n");
 194         fprintf(file, "/* Ensure that symbols for functions implemented within cacao are used and    */\n");
 195         fprintf(file, "/* exported to dlopen.                                                        */\n\n");
 196         fprintf(file, "static functionptr dummynativetable[] = {\n");
 197
 198         {
 199                 FILE *implData;
 200
 201                 implData = fopen("vm/implementednatives.data", "r");
 202
 203                 if (!implData) {
 204                         fclose(file);
 205                         throw_cacao_exception_exit(string_java_lang_InternalError,
 206                                                                            "Could not find file");
 207                 }
 208
 209                 while (!feof(implData)) {
 210                         char functionLine[1024];
 211                         functionLine[0] = '\0';
 212                         fgets(functionLine, 1024, implData);
 213
 214                         if (strlen(functionLine) < 2)
 215                                 continue;
 216
 217                         if (functionLine[strlen(functionLine) - 1] != '\n') {
 218                                 fclose(implData);
 219                                 fclose(file);
 220                                 exit(4);
 221                         }
 222
 223                         functionLine[strlen(functionLine) - 1] = ',';
 224                         fprintf(file,"\t(functionptr) %s\n", functionLine);
 225                 }
 226
 227                 fprintf(file, "\t(functionptr) 0\n");
 228                 fclose(implData);
 229         }
 230
 231         fprintf(file, "};\n");
 232         fprintf(file, "\n#endif\n");
 233         fclose(file);
 234
 235         /* release all resources */
 236
 237         loader_close();
 238         tables_close(literalstring_free);
 239
 240         /* everything is ok */
 241
 242         return 0;
 243 }
 244
 245
 246 /*
 247  * These are local overrides for various environment variables in Emacs.
 248  * Please do not remove this and leave it at the end of the file, where
 249  * Emacs will automagically detect them.
 250  * ---------------------------------------------------------------------
 251  * Local variables:
 252  * mode: c
 253  * indent-tabs-mode: t
 254  * c-basic-offset: 4
 255  * tab-width: 4
 256  * End:
 257  */
 258
 259