1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/* Program to generate "main" a Java(TM) class containing a main method.
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
2007 Free Software Foundation, Inc.
This file is part of GCC.
GCC 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 3, or (at your option)
any later version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>.
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 "coretypes.h"
#include "tm.h"
#include "obstack.h"
#include "jcf.h"
#include "tree.h"
#include "java-tree.h"
#include "intl.h"
static char * do_mangle_classname (const char *string);
struct obstack name_obstack;
struct obstack *mangle_obstack = &name_obstack;
static void usage (const char *) ATTRIBUTE_NORETURN;
static void
usage (const char *name)
{
fprintf (stderr, _("Usage: %s [OPTIONS]... CLASSNAMEmain [OUTFILE]\n"),
name);
exit (1);
}
int
main (int argc, char **argv)
{
char *classname, *p;
FILE *stream;
const char *mangled_classname;
int i, last_arg;
int indirect = 0;
char *prog_name = argv[0];
/* Unlock the stdio streams. */
unlock_std_streams ();
gcc_init_libintl ();
if (argc > 1 && ! strcmp (argv[1], "-findirect-dispatch"))
{
indirect = 1;
++argv;
--argc;
}
if (argc < 2)
usage (prog_name);
for (i = 1; i < argc; ++i)
{
if (! strncmp (argv[i], "-D", 2))
{
/* Handled later. */
}
else
break;
}
if (i < argc - 2 || i == argc)
usage (prog_name);
last_arg = i;
classname = argv[i];
/* gcj always appends `main' to classname. We need to strip this here. */
p = strrchr (classname, 'm');
if (p == NULL || p == classname || strcmp (p, "main") != 0)
usage (prog_name);
else
*p = '\0';
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"),
prog_name, 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, "int main (int argc, const char **argv)\n");
fprintf (stream, "{\n");
fprintf (stream, " _Jv_Compiler_Properties = props;\n");
if (indirect)
fprintf (stream, " JvRunMainName (\"%s\", argc, argv);\n", classname);
else
{
fprintf (stream, " extern char %s;\n", mangled_classname);
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"),
prog_name, argv[2]);
exit (1);
}
return 0;
}
static char *
do_mangle_classname (const char *string)
{
const char *ptr;
int count = 0;
obstack_grow (&name_obstack, "_ZN", 3);
for (ptr = string; *ptr; ptr++ )
{
if (*ptr == '.')
{
append_gpp_mangled_name (ptr - count, count);
count = 0;
}
else
count++;
}
append_gpp_mangled_name (&ptr [-count], count);
obstack_grow (mangle_obstack, "6class$E", strlen ("6class$E"));
obstack_1grow (mangle_obstack, '\0');
return obstack_finish (mangle_obstack);
}
|
