1 /* Functions related to building resource files.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, 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. */
28 #include "coretypes.h"
33 #include "java-tree.h"
44 #include "tree-iterator.h"
46 /* DOS brain-damage */
48 #define O_BINARY 0 /* MS-DOS brain-damage */
51 /* A list of all the resources files. */
52 static GTY(()) tree resources = NULL;
54 /* Count of all the resources compiled in this invocation. */
55 static int Jr_count = 0;
58 compile_resource_data (const char *name, const char *buffer, int length)
60 tree rtype, field = NULL_TREE, data_type, rinit, data, decl;
63 data_type = build_prim_array_type (unsigned_byte_type_node,
64 strlen (name) + length);
65 rtype = make_node (RECORD_TYPE);
66 PUSH_FIELD (rtype, field, "name_length", unsigned_int_type_node);
67 PUSH_FIELD (rtype, field, "resource_length", unsigned_int_type_node);
68 PUSH_FIELD (rtype, field, "data", data_type);
69 FINISH_RECORD (rtype);
70 START_RECORD_CONSTRUCTOR (rinit, rtype);
71 PUSH_FIELD_VALUE (rinit, "name_length",
72 build_int_cst (NULL_TREE, strlen (name)));
73 PUSH_FIELD_VALUE (rinit, "resource_length",
74 build_int_cst (NULL_TREE, length));
75 data = build_string (strlen(name) + length, buffer);
76 TREE_TYPE (data) = data_type;
77 PUSH_FIELD_VALUE (rinit, "data", data);
78 FINISH_RECORD_CONSTRUCTOR (rinit);
79 TREE_CONSTANT (rinit) = 1;
80 TREE_INVARIANT (rinit) = 1;
82 /* Generate a unique-enough identifier. */
83 sprintf (buf, "_Jr%d", ++Jr_count);
85 decl = build_decl (VAR_DECL, get_identifier (buf), rtype);
86 TREE_STATIC (decl) = 1;
87 DECL_ARTIFICIAL (decl) = 1;
88 DECL_IGNORED_P (decl) = 1;
89 TREE_READONLY (decl) = 1;
90 TREE_THIS_VOLATILE (decl) = 0;
91 DECL_INITIAL (decl) = rinit;
92 layout_decl (decl, 0);
94 rest_of_decl_compilation (decl, global_bindings_p (), 0);
96 assemble_variable (decl, 1, 0, 0);
98 resources = tree_cons (NULL_TREE, decl, resources);
102 write_resource_constructor (tree *list_p)
104 tree iter, t, register_resource_fn;
106 if (resources == NULL)
109 t = build_function_type_list (void_type_node, ptr_type_node, NULL);
110 t = build_decl (FUNCTION_DECL, get_identifier ("_Jv_RegisterResource"), t);
112 DECL_EXTERNAL (t) = 1;
113 register_resource_fn = t;
115 /* Write out entries in the same order in which they were defined. */
116 for (iter = nreverse (resources); iter ; iter = TREE_CHAIN (iter))
118 t = build_fold_addr_expr (TREE_VALUE (iter));
119 t = tree_cons (NULL, t, NULL);
120 t = build_function_call_expr (register_resource_fn, t);
121 append_to_statement_list (t, list_p);
125 /* Generate a byte array representing the contents of FILENAME. The
126 array is assigned a unique local symbol. The array represents a
127 compiled Java resource, which is accessed by the runtime using
130 compile_resource_file (const char *name, const char *filename)
132 struct stat stat_buf;
136 fd = open (filename, O_RDONLY | O_BINARY);
139 perror ("Failed to read resource file");
142 if (fstat (fd, &stat_buf) != 0
143 || ! S_ISREG (stat_buf.st_mode))
145 perror ("Could not figure length of resource file");
148 buffer = xmalloc (strlen (name) + stat_buf.st_size);
149 strcpy (buffer, name);
150 read (fd, buffer + strlen (name), stat_buf.st_size);
153 compile_resource_data (name, buffer, stat_buf.st_size);
156 #include "gt-java-resource.h"