src/class.h

   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 /* Macros for reading data values from class files - values
  23    are in big endian format, and non-aligned.  See arch.h
  24    for READ_DBL - this is platform dependent */
  25
  26 #define READ_U1(v,p,l)  v = *(p)++
  27 #define READ_U2(v,p,l)  v = ((p)[0]<<8)|(p)[1]; (p)+=2
  28 #define READ_U4(v,p,l)  v = ((p)[0]<<24)|((p)[1]<<16)|((p)[2]<<8)|(p)[3]; (p)+=4
  29 #define READ_U8(v,p,l)  v = ((u8)(p)[0]<<56)|((u8)(p)[1]<<48)|((u8)(p)[2]<<40) \
  30                             |((u8)(p)[3]<<32)|((u8)(p)[4]<<24)|((u8)(p)[5]<<16) \
  31                             |((u8)(p)[6]<<8)|(u8)(p)[7]; (p)+=8
  32
  33 #define READ_INDEX(v,p,l)               READ_U2(v,p,l)
  34 #define READ_TYPE_INDEX(v,cp,t,p,l)     READ_U2(v,p,l)
  35
  36 /* The default value of the boot classpath is based on the JamVM
  37    and Classpath install directories.  If zip support is enabled
  38    the classes will be contained in ZIP files, else they will be
  39    separate class files in a directory structure */
  40
  41 #ifdef USE_ZIP
  42 #define JAMVM_CLASSES INSTALL_DIR"/share/jamvm/classes.zip"
  43 #define CLASSPATH_CLASSES CLASSPATH_INSTALL_DIR"/share/classpath/glibj.zip"
  44 #else
  45 #define JAMVM_CLASSES INSTALL_DIR"/share/jamvm/classes"
  46 #define CLASSPATH_CLASSES CLASSPATH_INSTALL_DIR"/share/classpath"
  47 #endif
  48
  49 #define DFLT_BCP JAMVM_CLASSES":"CLASSPATH_CLASSES