1 /* Functions related to building resource files.
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
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"
45 /* DOS brain-damage */
47 #define O_BINARY 0 /* MS-DOS brain-damage */
50 /* A list of all the resources files. */
51 static GTY(()) tree resources = NULL;
53 /* Function used to register resources. */
54 static GTY(()) rtx registerResource_libfunc;
56 /* Count of all the resources compiled in this invocation. */
57 static int Jr_count = 0;
60 compile_resource_data (const char *name, const char *buffer, int length)
62 tree rtype, field = NULL_TREE, data_type, rinit, data, decl;
65 data_type = build_prim_array_type (unsigned_byte_type_node,
66 strlen (name) + length);
67 rtype = make_node (RECORD_TYPE);
68 PUSH_FIELD (rtype, field, "name_length", unsigned_int_type_node);
69 PUSH_FIELD (rtype, field, "resource_length", unsigned_int_type_node);
70 PUSH_FIELD (rtype, field, "data", data_type);
71 FINISH_RECORD (rtype);
72 START_RECORD_CONSTRUCTOR (rinit, rtype);
73 PUSH_FIELD_VALUE (rinit, "name_length",
74 build_int_2 (strlen (name), 0));
75 PUSH_FIELD_VALUE (rinit, "resource_length",
76 build_int_2 (length, 0));
77 data = build_string (strlen(name) + length, buffer);
78 TREE_TYPE (data) = data_type;
79 PUSH_FIELD_VALUE (rinit, "data", data);
80 FINISH_RECORD_CONSTRUCTOR (rinit);
81 TREE_CONSTANT (rinit) = 1;
82 TREE_INVARIANT (rinit) = 1;
84 /* Generate a unique-enough identifier. */
85 sprintf (buf, "_Jr%d", ++Jr_count);
87 decl = build_decl (VAR_DECL, get_identifier (buf), rtype);
88 TREE_STATIC (decl) = 1;
89 DECL_ARTIFICIAL (decl) = 1;
90 DECL_IGNORED_P (decl) = 1;
91 TREE_READONLY (decl) = 1;
92 TREE_THIS_VOLATILE (decl) = 0;
93 DECL_INITIAL (decl) = rinit;
94 layout_decl (decl, 0);
96 rest_of_decl_compilation (decl, (char*) 0, global_bindings_p (), 0);
97 make_decl_rtl (decl, (char*) 0);
98 assemble_variable (decl, 1, 0, 0);
100 resources = tree_cons (NULL_TREE, decl, resources);
104 write_resource_constructor (void)
106 tree init_name, init_type, init_decl;
108 location_t saved_loc = input_location;
109 char *resource_ctor_name;
111 /* Only do work if required. */
112 if (resources == NULL_TREE)
115 resource_ctor_name = concat (IDENTIFIER_POINTER (get_file_function_name ('I')),
117 init_name = get_identifier (resource_ctor_name);
118 free (resource_ctor_name);
119 init_type = build_function_type (void_type_node, end_params_node);
121 init_decl = build_decl (FUNCTION_DECL, init_name, init_type);
122 DECL_SOURCE_LINE (init_decl) = 0;
123 SET_DECL_ASSEMBLER_NAME (init_decl, init_name);
124 TREE_STATIC (init_decl) = 1;
125 current_function_decl = init_decl;
126 DECL_RESULT (init_decl) = build_decl (RESULT_DECL,
127 NULL_TREE, void_type_node);
129 /* It can be a static function as long as collect2 does not have
130 to scan the object file to find its ctor/dtor routine. */
131 TREE_PUBLIC (init_decl) = ! targetm.have_ctors_dtors;
133 /* Suppress spurious warnings. */
134 TREE_USED (init_decl) = 1;
137 make_decl_rtl (init_decl, NULL);
138 init_function_start (init_decl);
139 expand_function_start (init_decl, 0);
141 /* Write out entries in the same order in which they were defined. */
142 for (iter = nreverse (resources); iter != NULL_TREE;
143 iter = TREE_CHAIN (iter))
145 emit_library_call (registerResource_libfunc, 0, VOIDmode, 1,
146 expand_expr (build_address_of (TREE_VALUE (iter)),
151 input_location = DECL_SOURCE_LOCATION (init_decl);
152 expand_function_end ();
155 /* Force generation, even with -O3 or deeper. Gross hack.
157 int saved_flag = flag_inline_functions;
158 flag_inline_functions = 0;
159 rest_of_compilation (init_decl);
160 flag_inline_functions = saved_flag;
162 current_function_decl = NULL_TREE;
163 if (targetm.have_ctors_dtors)
164 targetm.asm_out.constructor (XEXP (DECL_RTL (init_decl), 0),
165 DEFAULT_INIT_PRIORITY);
166 input_location = saved_loc;
169 /* Generate a byte array representing the contents of FILENAME. The
170 array is assigned a unique local symbol. The array represents a
171 compiled Java resource, which is accessed by the runtime using
174 compile_resource_file (const char *name, const char *filename)
176 struct stat stat_buf;
180 fd = open (filename, O_RDONLY | O_BINARY);
183 perror ("Failed to read resource file");
186 if (fstat (fd, &stat_buf) != 0
187 || ! S_ISREG (stat_buf.st_mode))
189 perror ("Could not figure length of resource file");
192 buffer = xmalloc (strlen (name) + stat_buf.st_size);
193 strcpy (buffer, name);
194 read (fd, buffer + strlen (name), stat_buf.st_size);
197 compile_resource_data (name, buffer, stat_buf.st_size);
198 write_resource_constructor ();
202 init_resource_processing (void)
204 registerResource_libfunc =
205 gen_rtx_SYMBOL_REF (Pmode, "_Jv_RegisterResource");
208 #include "gt-java-resource.h"