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Diffstat (limited to 'gcc/java/resource.c')
| -rw-r--r-- | gcc/java/resource.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/gcc/java/resource.c b/gcc/java/resource.c new file mode 100644 index 0000000..3362cc8 --- /dev/null +++ b/gcc/java/resource.c @@ -0,0 +1,199 @@ +/* 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 (name, buffer, length) + 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 () +{ + 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)) + { + 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 (name, filename) + 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 () +{ + registerResource_libfunc = + gen_rtx_SYMBOL_REF (Pmode, "_Jv_RegisterResource"); +} + +#include "gt-java-resource.h" |