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 1916 2005-02-10 10:04:29Z 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), cp);
  85         }
  86
  87         /* initialize the garbage collector */
  88         gc_init(heapmaxsize, heapstartsize);
  89
  90         tables_init();
  91
  92         suck_init(classpath);
  93
  94 #if defined(USE_THREADS)
  95 #if defined(NATIVE_THREADS)
  96         initThreadsEarly();
  97 #endif
  98         initLocks();
  99 #endif
 100
 101         /* initialize some cacao subsystems */
 102
 103         utf8_init();
 104         class_init_foo();
 105         loader_init((u1 *) &dummy);
 106
 107
 108         /*********************** Load JAVA classes  **************************/
 109
 110         nativeclass_chain = chain_new();
 111         nativemethod_chain = chain_new();
 112
 113         for (i = 1; i < argc; i++) {
 114                 cp = argv[i];
 115
 116                 /* convert classname */
 117                 for (j = strlen(cp) - 1; j >= 0; j--) {
 118                         switch (cp[j]) {
 119                         case '.': cp[j] = '/';
 120                                 break;
 121                         case '_': cp[j] = '$';
 122                         }
 123                 }
 124
 125                 c = class_new(utf_new_char(cp));
 126
 127                 /* exceptions are catched with new_exception call */
 128                 class_load(c);
 129                 class_link(c);
 130
 131                 chain_addlast(nativeclass_chain, c);
 132
 133                 /* find overloaded methods */
 134                 for (j = 0; j < c->methodscount; j++) {
 135                         m = &(c->methods[j]);
 136
 137                         if (!(m->flags & ACC_NATIVE))
 138                                 continue;
 139
 140                         if (!m->nativelyoverloaded) {
 141                                 nativelyoverloaded = false;
 142
 143                                 for (k = j + 1; k < c->methodscount; k++) {
 144                                         m2 = &(c->methods[k]);
 145
 146                                         if (!(m2->flags & ACC_NATIVE))
 147                                                 continue;
 148
 149                                         if (m->name == m2->name) {
 150                                                 m2->nativelyoverloaded = true;
 151                                                 nativelyoverloaded = true;
 152                                         }
 153                                 }
 154                                 m->nativelyoverloaded = nativelyoverloaded;
 155                         }
 156                 }
 157
 158                 for (j = 0; j < c->methodscount; j++) {
 159                         m = &(c->methods[j]);
 160
 161                         if (m->flags & ACC_NATIVE) {
 162                                 chain_addlast(nativemethod_chain, m);
 163                         }
 164                 }
 165         }
 166
 167         /* create table of native-methods */
 168
 169         file = stdout;
 170
 171         fprintf(file, "/* Table of native methods: nativetables.inc */\n");
 172         fprintf(file, "/* This file is machine generated, don't edit it! */\n\n");
 173
 174         fprintf(file, "#include \"config.h\"\n");
 175
 176         c = chain_first(nativeclass_chain);
 177         while (c) {
 178                 gen_header_filename(classname, c->name);
 179                 fprintf(file, "#include \"native/include/%s.h\"\n", classname);
 180                 c = chain_next(nativeclass_chain);
 181         }
 182         chain_free(nativeclass_chain);
 183
 184         fprintf(file, "\n\n#include \"native/native.h\"\n\n");
 185         fprintf(file, "#if defined(STATIC_CLASSPATH)\n\n");
 186         fprintf(file, "static nativeref nativetable[] = {\n");
 187
 188         m = chain_first(nativemethod_chain);
 189         while (m) {
 190                 printnativetableentry(m);
 191                 m = chain_next(nativemethod_chain);
 192         }
 193         chain_free(nativemethod_chain);
 194
 195         fprintf(file, "};\n");
 196         fprintf(file, "\n#else\n\n");
 197         fprintf(file, "/* Ensure that symbols for functions implemented within cacao are used and    */\n");
 198         fprintf(file, "/* exported to dlopen.                                                        */\n\n");
 199         fprintf(file, "static functionptr dummynativetable[] = {\n");
 200
 201         {
 202                 FILE *implData;
 203
 204                 implData = fopen("vm/implementednatives.data", "r");
 205
 206                 if (!implData) {
 207                         fclose(file);
 208                         throw_cacao_exception_exit(string_java_lang_InternalError,
 209                                                                            "Could not find file");
 210                 }
 211
 212                 while (!feof(implData)) {
 213                         char functionLine[1024];
 214                         functionLine[0] = '\0';
 215                         fgets(functionLine, 1024, implData);
 216
 217                         if (strlen(functionLine) < 2)
 218                                 continue;
 219
 220                         if (functionLine[strlen(functionLine) - 1] != '\n') {
 221                                 fclose(implData);
 222                                 fclose(file);
 223                                 exit(4);
 224                         }
 225
 226                         functionLine[strlen(functionLine) - 1] = ',';
 227                         fprintf(file,"\t(functionptr) %s\n", functionLine);
 228                 }
 229
 230                 fprintf(file, "\t(functionptr) 0\n");
 231                 fclose(implData);
 232         }
 233
 234         fprintf(file, "};\n");
 235         fprintf(file, "\n#endif\n");
 236         fclose(file);
 237
 238         /* release all resources */
 239
 240         loader_close();
 241         tables_close();
 242
 243         /* everything is ok */
 244
 245         return 0;
 246 }
 247
 248
 249 /*
 250  * These are local overrides for various environment variables in Emacs.
 251  * Please do not remove this and leave it at the end of the file, where
 252  * Emacs will automagically detect them.
 253  * ---------------------------------------------------------------------
 254  * Local variables:
 255  * mode: c
 256  * indent-tabs-mode: t
 257  * c-basic-offset: 4
 258  * tab-width: 4
 259  * End:
 260  */