src/init.c

   1 /*
   2  * Copyright (C) 2003, 2004, 2005, 2006, 2007
   3  * Robert Lougher <rob@lougher.org.uk>.
   4  *
   5  * This file is part of JamVM.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2,
  10  * or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <stdlib.h>
  25 #include <stdarg.h>
  26
  27 #include "jam.h"
  28
  29 static int VM_initing = TRUE;
  30 extern void initialisePlatform();
  31
  32 /* Setup default values for command line args */
  33
  34 void setDefaultInitArgs(InitArgs *args) {
  35     args->noasyncgc = FALSE;
  36
  37     args->verbosegc    = FALSE;
  38     args->verbosedll   = FALSE;
  39     args->verboseclass = FALSE;
  40
  41     args->compact_specified = FALSE;
  42
  43     args->classpath = NULL;
  44     args->bootpath  = NULL;
  45
  46     args->java_stack = DEFAULT_STACK;
  47     args->min_heap   = DEFAULT_MIN_HEAP;
  48     args->max_heap   = DEFAULT_MAX_HEAP;
  49
  50     args->props_count = 0;
  51
  52     args->vfprintf = vfprintf;
  53     args->abort    = abort;
  54     args->exit     = exit;
  55
  56 #ifdef INLINING
  57     args->replication = 10;
  58     args->codemem = args->max_heap / 4;
  59 #endif
  60 }
  61
  62 int VMInitialising() {
  63     return VM_initing;
  64 }
  65
  66 void initVM(InitArgs *args) {
  67     /* Perform platform dependent initialisation */
  68     initialisePlatform();
  69
  70     /* Initialise the VM modules -- ordering is important! */
  71     initialiseHooks(args);
  72     initialiseProperties(args);
  73     initialiseAlloc(args);
  74     initialiseClass(args);
  75     initialiseDll(args);
  76     initialiseUtf8();
  77     initialiseMonitor();
  78     initialiseInterpreter(args);
  79     initialiseMainThread(args);
  80     initialiseException();
  81     initialiseString();
  82     initialiseGC(args);
  83     initialiseJNI();
  84     initialiseNatives();
  85
  86     /* No need to check for exception - if one occurs, signalException aborts VM */
  87     findSystemClass("java/lang/NoClassDefFoundError");
  88     findSystemClass("java/lang/ClassFormatError");
  89     findSystemClass("java/lang/NoSuchFieldError");
  90     findSystemClass("java/lang/NoSuchMethodError");
  91
  92     VM_initing = FALSE;
  93 }
  94
  95 unsigned long parseMemValue(char *str) {
  96     char *end;
  97     unsigned long n = strtol(str, &end, 0);
  98
  99     switch(end[0]) {
 100         case '\0':
 101             break;
 102
 103         case 'M':
 104         case 'm':
 105             n *= MB;
 106             break;
 107
 108         case 'K':
 109         case 'k':
 110             n *= KB;
 111             break;
 112
 113         default:
 114              n = 0;
 115     }
 116
 117     return n;
 118 }