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/* Program to generate "main" a Java(TM) class containing a main method.
Copyright (C) 1998, 1999, 2000, 2001 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 "jcf.h"
#include "tree.h"
#include "java-tree.h"
static char * do_mangle_classname PARAMS ((const char *string));
struct obstack name_obstack;
struct obstack *mangle_obstack = &name_obstack;
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 *(*) PARAMS ((long))) OBSTACK_CHUNK_ALLOC,
(void (*) PARAMS ((void *))) OBSTACK_CHUNK_FREE);
}
static void usage (const char *) ATTRIBUTE_NORETURN;
static void
usage (const char *name)
{
fprintf (stderr, "Usage: %s [OPTIONS]... CLASSNAME [OUTFILE]\n", name);
exit (1);
}
int
main (int argc, const char **argv)
{
const char *classname;
FILE *stream;
const char *mangled_classname;
int i, last_arg;
if (argc < 2)
usage (argv[0]);
for (i = 1; i < argc; ++i)
{
if (! strncmp (argv[i], "-D", 2))
{
/* Handled later. */
}
else
break;
}
if (i < argc - 2 || i == argc)
usage (argv[0]);
last_arg = i;
classname = argv[i];
gcc_obstack_init (mangle_obstack);
mangled_classname = do_mangle_classname (classname);
if (i < argc - 1 && strcmp (argv[i + 1], "-") != 0)
{
const char *outfile = argv[i + 1];
stream = fopen (outfile, "w");
if (stream == NULL)
{
fprintf (stderr, "%s: Cannot open output file: %s\n",
argv[0], outfile);
exit (1);
}
}
else
stream = stdout;
/* At this point every element of ARGV from 1 to LAST_ARG is a `-D'
option. Process them appropriately. */
fprintf (stream, "extern const char **_Jv_Compiler_Properties;\n");
fprintf (stream, "static const char *props[] =\n{\n");
for (i = 1; i < last_arg; ++i)
{
const char *p;
fprintf (stream, " \"");
for (p = &argv[i][2]; *p; ++p)
{
if (! ISPRINT (*p))
fprintf (stream, "\\%o", *p);
else if (*p == '\\' || *p == '"')
fprintf (stream, "\\%c", *p);
else
putc (*p, stream);
}
fprintf (stream, "\",\n");
}
fprintf (stream, " 0\n};\n\n");
fprintf (stream, "extern int %s;\n", mangled_classname);
fprintf (stream, "int main (int argc, const char **argv)\n");
fprintf (stream, "{\n");
fprintf (stream, " _Jv_Compiler_Properties = props;\n");
fprintf (stream, " JvRunMain (&%s, argc, argv);\n", 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;
}
static char *
do_mangle_classname (string)
const char *string;
{
const char *ptr;
int count = 0;
obstack_grow (&name_obstack, "_ZN", 3);
for (ptr = string; *ptr; ptr++ )
{
if (ptr[0] == '.')
{
append_gpp_mangled_name (&ptr [-count], count);
count = 0;
}
else
count++;
}
append_gpp_mangled_name (&ptr [-count], count);
obstack_grow (mangle_obstack, "6class$E", 8);
obstack_1grow (mangle_obstack, '\0');
return obstack_finish (mangle_obstack);
}
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