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/* Copyright (C) 1999 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
/* Author: Kresten Krab Thorup <krab@gnu.org> */
#include <config.h>
#include <jvm.h>
#include <gcj/cni.h>
#include <java-props.h>
#include <stdio.h>
#include <string.h>
#include <java/lang/System.h>
#include <java/util/Properties.h>
static void
help ()
{
printf ("Usage: gij [OPTION] ... CLASS [ARGS] ...\n\n");
printf ("Interpret Java bytecodes\n\n");
printf (" -DVAR=VAL define property VAR with value VAL\n");
printf (" --help print this help, then exit\n");
printf (" --ms=NUMBER set initial heap size\n");
printf (" --mx=NUMBER set maximum heap size\n");
printf (" --version print version number, then exit\n");
printf ("\nSee http://sourceware.cygnus.com/java/ for information on reporting bugs\n");
exit (0);
}
static void
version ()
{
printf ("gij (GNU libgcj) version %s\n\n", VERSION);
printf ("Copyright (C) 1999 Free Software Foundation.\n");
printf ("This is free software; see the source for copying conditions. There is NO\n");
printf ("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n");
exit (0);
}
int
main (int argc, const char **argv)
{
/* We rearrange ARGV so that all the -D options appear near the
beginning. */
int last_D_option = 0;
int i;
for (i = 1; i < argc; ++i)
{
const char *arg = argv[i];
/* A non-option stops processing. */
if (arg[0] != '-')
break;
/* A "--" stops processing. */
if (! strcmp (arg, "--"))
{
++i;
break;
}
if (! strncmp (arg, "-D", 2))
{
argv[last_D_option++] = arg + 2;
continue;
}
/* Allow both single or double hyphen for all remaining
options. */
if (arg[1] == '-')
++arg;
if (! strcmp (arg, "-help"))
help ();
else if (! strcmp (arg, "-version"))
version ();
/* FIXME: use getopt and avoid the ugliness here.
We at least need to handle the argument in a better way. */
else if (! strncmp (arg, "-ms=", 4))
_Jv_SetInitialHeapSize (arg + 4);
else if (! strcmp (arg, "-ms"))
{
if (i >= argc - 1)
{
no_arg:
fprintf (stderr, "gij: option requires an argument -- `%s'\n",
argv[i]);
fprintf (stderr, "Try `gij --help' for more information.\n");
exit (1);
}
_Jv_SetInitialHeapSize (argv[++i]);
}
else if (! strncmp (arg, "-mx=", 4))
_Jv_SetMaximumHeapSize (arg + 4);
else if (! strcmp (arg, "-mx"))
{
if (i >= argc - 1)
goto no_arg;
_Jv_SetMaximumHeapSize (argv[++i]);
}
else
{
fprintf (stderr, "gij: unrecognized option -- `%s'\n", argv[i]);
fprintf (stderr, "Try `gij --help' for more information.\n");
exit (1);
}
}
argv[last_D_option] = NULL;
_Jv_Compiler_Properties = argv;
if (argc - i < 1)
{
fprintf (stderr, "Usage: gij [OPTION] ... CLASS [ARGS] ...\n");
fprintf (stderr, "Try `gij --help' for more information.\n");
exit (1);
}
_Jv_RunMain (argv[i], argc - i, argv + i);
}
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