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/* Program to generate "main" a Java(TM) class containing a main method.
Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Java and all Java-based marks are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries.
The Free Software Foundation is independent of Sun Microsystems, Inc. */
/* Written by Per Bothner <bothner@cygnus.com> */
#include "config.h"
#include "system.h"
#include "obstack.h"
#include "gansidecl.h"
#include "jcf.h"
#include "tree.h"
#include "java-tree.h"
const char main_method_prefix[] = "main__";
const char main_method_suffix[] = "Pt6JArray1ZPQ34java4lang6String";
const char class_mangling_prefix[] = "_CL_";
struct obstack name_obstack;
extern void error PVPROTO ((const char *, ...))
ATTRIBUTE_PRINTF_1;
void
error VPROTO((const char *msgid, ...))
{
#ifndef ANSI_PROTOTYPES
const char *msgid;
#endif
va_list ap;
VA_START (ap, msgid);
#ifndef ANSI_PROTOTYPES
msgid = va_arg (ap, const char *);
#endif
vfprintf (stderr, msgid, ap);
va_end (ap);
}
void
gcc_obstack_init (obstack)
struct obstack *obstack;
{
/* Let particular systems override the size of a chunk. */
#ifndef OBSTACK_CHUNK_SIZE
#define OBSTACK_CHUNK_SIZE 0
#endif
/* Let them override the alloc and free routines too. */
#ifndef OBSTACK_CHUNK_ALLOC
#define OBSTACK_CHUNK_ALLOC xmalloc
#endif
#ifndef OBSTACK_CHUNK_FREE
#define OBSTACK_CHUNK_FREE free
#endif
_obstack_begin (obstack, OBSTACK_CHUNK_SIZE, 0,
(void *(*) ()) OBSTACK_CHUNK_ALLOC,
(void (*) ()) OBSTACK_CHUNK_FREE);
}
int
main (int argc, const char **argv)
{
const char *classname;
FILE *stream;
char *mangled_classname;
if (argc < 2 || argc > 3)
{
fprintf (stderr, "Usage: %s CLASSNAME [OUTFILE]\n", argv[0]);
exit(-1);
}
classname = argv[1];
gcc_obstack_init (&name_obstack);
append_gpp_mangled_classtype (&name_obstack, classname);
mangled_classname = obstack_finish (&name_obstack);
if (argc > 2 && strcmp (argv[2], "-") != 0)
{
const char *outfile = argv[2];
stream = fopen (outfile, "w");
if (stream == NULL)
{
fprintf (stderr, "%s: Cannot open output file: %s\n",
argv[0], outfile);
exit (-1);
}
}
else
stream = stdout;
fprintf (stream, "extern struct Class %s%s;\n",
class_mangling_prefix, mangled_classname);
fprintf (stream, "int main (int argc, const char **argv)\n");
fprintf (stream, "{\n");
fprintf (stream, " JvRunMain (&%s%s, argc, argv);\n",
class_mangling_prefix, mangled_classname);
fprintf (stream, "}\n");
if (stream != stdout && fclose (stream) != 0)
{
fprintf (stderr, "%s: Failed to close output file %s\n",
argv[0], argv[2]);
exit (-1);
}
return 0;
}
PTR
xmalloc (size)
size_t size;
{
register PTR val = (PTR) malloc (size);
if (val == 0)
{
fprintf(stderr, "jvgenmain: virtual memory exhausted");
exit(FATAL_EXIT_CODE);
}
return val;
}
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