1 /* Program to generate "main" a Java(TM) class containing a main method.
2 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC 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.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
22 Java and all Java-based marks are trademarks or registered trademarks
23 of Sun Microsystems, Inc. in the United States and other countries.
24 The Free Software Foundation is independent of Sun Microsystems, Inc. */
26 /* Written by Per Bothner <bothner@cygnus.com> */
30 #include "coretypes.h"
35 #include "java-tree.h"
38 static char * do_mangle_classname (const char *string);
40 struct obstack name_obstack;
41 struct obstack *mangle_obstack = &name_obstack;
43 static void usage (const char *) ATTRIBUTE_NORETURN;
46 usage (const char *name)
48 fprintf (stderr, _("Usage: %s [OPTIONS]... CLASSNAMEmain [OUTFILE]\n"),
54 main (int argc, char **argv)
58 const char *mangled_classname;
61 char *prog_name = argv[0];
63 /* Unlock the stdio streams. */
64 unlock_std_streams ();
68 if (argc > 1 && ! strcmp (argv[1], "-findirect-dispatch"))
78 for (i = 1; i < argc; ++i)
80 if (! strncmp (argv[i], "-D", 2))
88 if (i < argc - 2 || i == argc)
94 /* gcj always appends `main' to classname. We need to strip this here. */
95 p = strrchr (classname, 'm');
96 if (p == NULL || p == classname || strcmp (p, "main") != 0)
101 gcc_obstack_init (mangle_obstack);
102 mangled_classname = do_mangle_classname (classname);
104 if (i < argc - 1 && strcmp (argv[i + 1], "-") != 0)
106 const char *outfile = argv[i + 1];
107 stream = fopen (outfile, "w");
110 fprintf (stderr, _("%s: Cannot open output file: %s\n"),
118 /* At this point every element of ARGV from 1 to LAST_ARG is a `-D'
119 option. Process them appropriately. */
120 fprintf (stream, "extern const char **_Jv_Compiler_Properties;\n");
121 fprintf (stream, "static const char *props[] =\n{\n");
122 for (i = 1; i < last_arg; ++i)
125 fprintf (stream, " \"");
126 for (p = &argv[i][2]; *p; ++p)
129 fprintf (stream, "\\%o", *p);
130 else if (*p == '\\' || *p == '"')
131 fprintf (stream, "\\%c", *p);
135 fprintf (stream, "\",\n");
137 fprintf (stream, " 0\n};\n\n");
139 fprintf (stream, "int main (int argc, const char **argv)\n");
140 fprintf (stream, "{\n");
141 fprintf (stream, " _Jv_Compiler_Properties = props;\n");
143 fprintf (stream, " JvRunMainName (\"%s\", argc, argv);\n", classname);
146 fprintf (stream, " extern void *%s;\n", mangled_classname);
147 fprintf (stream, " JvRunMain (%s, argc, argv);\n", mangled_classname);
149 fprintf (stream, "}\n");
150 if (stream != stdout && fclose (stream) != 0)
152 fprintf (stderr, _("%s: Failed to close output file %s\n"),
161 do_mangle_classname (const char *string)
166 obstack_grow (&name_obstack, "_ZN", 3);
168 for (ptr = string; *ptr; ptr++ )
172 append_gpp_mangled_name (ptr - count, count);
178 append_gpp_mangled_name (&ptr [-count], count);
179 obstack_grow (mangle_obstack, "7class$$E", strlen ("7class$$E"));
180 obstack_1grow (mangle_obstack, '\0');
181 return obstack_finish (mangle_obstack);