gennativetable.c

   1 /* gennativetable.c - generate nativetable.h for native.c
   2
   3    Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
   4    R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
   5    M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
   6    P. Tomsich, J. Wenninger
   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 1264 2004-07-01 14:21:05Z jowenn $
  32
  33 */
  34
  35
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include "config.h"
  40 #include "types.h"
  41 #include "global.h"
  42 #include "headers.h"
  43 #include "loader.h"
  44 #include "tables.h"
  45 #include "mm/boehm.h"
  46 #include "threads/thread.h"
  47 #include "toolbox/chain.h"
  48 #include "toolbox/memory.h"
  49
  50
  51 int main(int argc, char **argv)
  52 {
  53         s4 i, j, k;
  54         char classpath[500] = "";
  55         char *cp;
  56         classinfo *c;
  57         methodinfo *m;
  58         methodinfo *m2;
  59         bool nativelyoverloaded;
  60         u4 heapmaxsize = 2 * 1024 * 1024;
  61         u4 heapstartsize = 100 * 1024;
  62         void *dummy;
  63
  64         /* XXX change me */
  65         char classname[1024];
  66
  67         if (argc < 2) {
  68                 printf("Usage: gennativetable class [class...]\n");
  69                 exit(1);
  70         }
  71
  72         cp = getenv("CLASSPATH");
  73         if (cp) {
  74                 strcpy(classpath + strlen(classpath), ":");
  75                 strcpy(classpath + strlen(classpath), cp);
  76         }
  77
  78         /* initialize the garbage collector */
  79         gc_init(heapmaxsize, heapstartsize);
  80
  81         tables_init();
  82
  83         suck_init(classpath);
  84
  85
  86 #if defined(USE_THREADS) && defined(NATIVE_THREADS)
  87         initThreadsEarly();
  88 #endif
  89         loader_init((u1 *) &dummy);
  90
  91
  92         /*********************** Load JAVA classes  **************************/
  93
  94         nativeclass_chain = chain_new();
  95         nativemethod_chain = chain_new();
  96
  97         for (i = 1; i < argc; i++) {
  98                 cp = argv[i];
  99
 100                 /* convert classname */
 101                 for (j = strlen(cp) - 1; j >= 0; j--) {
 102                         switch (cp[j]) {
 103                         case '.': cp[j] = '/';
 104                                 break;
 105                         case '_': cp[j] = '$';
 106                         }
 107                 }
 108
 109                 c = class_new(utf_new_char(cp));
 110
 111                 /* exceptions are catched with new_exception call */
 112                 class_load(c);
 113                 class_link(c);
 114
 115                 chain_addlast(nativeclass_chain, c);
 116
 117                 /* find overloaded methods */
 118                 for (j = 0; j < c->methodscount; j++) {
 119                         m = &(c->methods[j]);
 120
 121                         if (!(m->flags & ACC_NATIVE))
 122                                 continue;
 123
 124                         if (!m->nativelyoverloaded) {
 125                                 nativelyoverloaded = false;
 126
 127                                 for (k = j + 1; k < c->methodscount; k++) {
 128                                         m2 = &(c->methods[k]);
 129
 130                                         if (!(m2->flags & ACC_NATIVE))
 131                                                 continue;
 132
 133                                         if (m->name == m2->name) {
 134                                                 m2->nativelyoverloaded = true;
 135                                                 nativelyoverloaded = true;
 136                                         }
 137                                 }
 138                                 m->nativelyoverloaded = nativelyoverloaded;
 139                         }
 140                 }
 141
 142                 for (j = 0; j < c->methodscount; j++) {
 143                         m = &(c->methods[j]);
 144
 145                         if (m->flags & ACC_NATIVE) {
 146                                 chain_addlast(nativemethod_chain, m);
 147                         }
 148                 }
 149         }
 150
 151         /* create table of native-methods */
 152
 153 /*      file = fopen("nativetable.h", "w"); */
 154         file = stdout;
 155
 156         if (!file)
 157                 panic("Can not open file 'nativetable' to store native-link-table");
 158
 159         fprintf(file, "/* Table of native methods: nativetables.hh */\n");
 160         fprintf(file, "/* This file is machine generated, don't edit it !*/\n\n");
 161
 162         c = chain_first(nativeclass_chain);
 163         while (c) {
 164                 gen_header_filename(classname, c->name);
 165                 fprintf(file, "#include \"nat/%s.h\"\n", classname);
 166                 c = chain_next(nativeclass_chain);
 167         }
 168         chain_free(nativeclass_chain);
 169
 170         fprintf(file, "\n\n#include \"native.h\"\n\n");
 171         fprintf(file, "static nativeref nativetable[] = {\n");
 172
 173         m = chain_first(nativemethod_chain);
 174         while (m) {
 175                 printnativetableentry(m);
 176                 m = chain_next(nativemethod_chain);
 177         }
 178         chain_free(nativemethod_chain);
 179
 180         fprintf(file, "};\n");
 181
 182         fclose(file);
 183
 184         /* release all resources */
 185
 186         loader_close();
 187         tables_close(literalstring_free);
 188
 189         /* everything is ok */
 190
 191         return 0;
 192 }
 193
 194
 195 /*
 196  * These are local overrides for various environment variables in Emacs.
 197  * Please do not remove this and leave it at the end of the file, where
 198  * Emacs will automagically detect them.
 199  * ---------------------------------------------------------------------
 200  * Local variables:
 201  * mode: c
 202  * indent-tabs-mode: t
 203  * c-basic-offset: 4
 204  * tab-width: 4
 205  * End:
 206  */
 207
 208