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/* Functions related to building resource files.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
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 2, 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 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. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
#include "rtl.h"
#include "flags.h"
#include "java-tree.h"
#include "jcf.h"
#include "obstack.h"
#include "toplev.h"
#include "output.h"
#include "parse.h"
#include "function.h"
#include "ggc.h"
#include "stdio.h"
#include "target.h"
/* DOS brain-damage */
#ifndef O_BINARY
#define O_BINARY 0 /* MS-DOS brain-damage */
#endif
/* A list of all the resources files. */
static GTY(()) tree resources = NULL;
/* Function used to register resources. */
static GTY(()) rtx registerResource_libfunc;
/* Count of all the resources compiled in this invocation. */
static int Jr_count = 0;
void
compile_resource_data (char *name, const char *buffer, int length)
{
tree rtype, field = NULL_TREE, data_type, rinit, data, decl;
char buf[60];
data_type = build_prim_array_type (unsigned_byte_type_node,
strlen (name) + length);
rtype = make_node (RECORD_TYPE);
PUSH_FIELD (rtype, field, "name_length", unsigned_int_type_node);
PUSH_FIELD (rtype, field, "resource_length", unsigned_int_type_node);
PUSH_FIELD (rtype, field, "data", data_type);
FINISH_RECORD (rtype);
START_RECORD_CONSTRUCTOR (rinit, rtype);
PUSH_FIELD_VALUE (rinit, "name_length",
build_int_2 (strlen (name), 0));
PUSH_FIELD_VALUE (rinit, "resource_length",
build_int_2 (length, 0));
data = build_string (strlen(name) + length, buffer);
TREE_TYPE (data) = data_type;
PUSH_FIELD_VALUE (rinit, "data", data);
FINISH_RECORD_CONSTRUCTOR (rinit);
TREE_CONSTANT (rinit) = 1;
/* Generate a unique-enough identifier. */
sprintf (buf, "_Jr%d", ++Jr_count);
decl = build_decl (VAR_DECL, get_identifier (buf), rtype);
TREE_STATIC (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
DECL_IGNORED_P (decl) = 1;
TREE_READONLY (decl) = 1;
TREE_THIS_VOLATILE (decl) = 0;
DECL_INITIAL (decl) = rinit;
layout_decl (decl, 0);
pushdecl (decl);
rest_of_decl_compilation (decl, (char*) 0, global_bindings_p (), 0);
make_decl_rtl (decl, (char*) 0);
assemble_variable (decl, 1, 0, 0);
resources = tree_cons (NULL_TREE, decl, resources);
}
void
write_resource_constructor (void)
{
tree init_name, init_type, init_decl;
tree iter;
/* Only do work if required. */
if (resources == NULL_TREE)
return;
init_name = get_file_function_name ('I');
init_type = build_function_type (void_type_node, end_params_node);
init_decl = build_decl (FUNCTION_DECL, init_name, init_type);
SET_DECL_ASSEMBLER_NAME (init_decl, init_name);
TREE_STATIC (init_decl) = 1;
current_function_decl = init_decl;
DECL_RESULT (init_decl) = build_decl (RESULT_DECL,
NULL_TREE, void_type_node);
/* It can be a static function as long as collect2 does not have
to scan the object file to find its ctor/dtor routine. */
TREE_PUBLIC (init_decl) = ! targetm.have_ctors_dtors;
pushlevel (0);
make_decl_rtl (init_decl, NULL);
init_function_start (init_decl, input_filename, 0);
expand_function_start (init_decl, 0);
/* Write out entries in the same order in which they were defined. */
for (iter = nreverse (resources); iter != NULL_TREE;
iter = TREE_CHAIN (iter))
{
const char *name = IDENTIFIER_POINTER (DECL_NAME (TREE_VALUE (iter)));
emit_library_call (registerResource_libfunc, 0, VOIDmode, 1,
gen_rtx (SYMBOL_REF, Pmode, name),
Pmode);
}
expand_function_end (input_filename, 0, 0);
poplevel (1, 0, 1);
{
/* Force generation, even with -O3 or deeper. Gross hack.
FIXME. */
int saved_flag = flag_inline_functions;
flag_inline_functions = 0;
rest_of_compilation (init_decl);
flag_inline_functions = saved_flag;
}
current_function_decl = NULL_TREE;
(* targetm.asm_out.constructor) (XEXP (DECL_RTL (init_decl), 0),
DEFAULT_INIT_PRIORITY);
}
/* Generate a byte array representing the contents of FILENAME. The
array is assigned a unique local symbol. The array represents a
compiled Java resource, which is accessed by the runtime using
NAME. */
void
compile_resource_file (char *name, const char *filename)
{
struct stat stat_buf;
int fd;
char *buffer;
fd = open (filename, O_RDONLY | O_BINARY);
if (fd < 0)
{
perror ("Failed to read resource file");
return;
}
if (fstat (fd, &stat_buf) != 0
|| ! S_ISREG (stat_buf.st_mode))
{
perror ("Could not figure length of resource file");
return;
}
buffer = xmalloc (strlen (name) + stat_buf.st_size);
strcpy (buffer, name);
read (fd, buffer + strlen (name), stat_buf.st_size);
close (fd);
compile_resource_data (name, buffer, stat_buf.st_size);
write_resource_constructor ();
}
void
init_resource_processing (void)
{
registerResource_libfunc =
gen_rtx_SYMBOL_REF (Pmode, "_Jv_RegisterResource");
}
#include "gt-java-resource.h"
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