1 /* =================================================================
5 * Routines to read a library from a file system.
7 * =================================================================
8 * ####ECOSGPLCOPYRIGHTBEGIN####
9 * -------------------------------------------
10 * This file is part of eCos, the Embedded Configurable Operating
12 * Copyright (C) 2005 eCosCentric Ltd.
14 * eCos is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 or (at your option)
19 * eCos is distributed in the hope that it will be useful, but
20 * WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 * General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with eCos; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
28 * As a special exception, if other files instantiate templates or
29 * use macros or inline functions from this file, or you compile this
30 * file and link it with other works to produce a work based on this
31 * file, this file does not by itself cause the resulting work to be
32 * covered by the GNU General Public License. However the source code
33 * for this file must still be made available in accordance with
34 * section (3) of the GNU General Public License.
36 * This exception does not invalidate any other reasons why a work
37 * based on this file might be covered by the GNU General Public
40 * -------------------------------------------
41 * ####ECOSGPLCOPYRIGHTEND####
42 * =================================================================
43 * #####DESCRIPTIONBEGIN####
45 * Author(s): atonizzo@lycos.com
46 * Contributors: nickg@ecoscentric.com
51 * ####DESCRIPTIONEND####
53 * =================================================================
56 #include <cyg/infra/diag.h> // For diagnostic printing.
57 #include <pkgconf/io_fileio.h>
63 #include <pkgconf/objloader.h>
64 #include <cyg/objloader/elf.h>
65 #include <cyg/objloader/objelf.h>
66 #include <cyg/objloader/loader_fs.h>
69 cyg_ldr_fs_read( PELF_OBJECT p, size_t s, size_t n, void *mem )
71 return fread( mem, s, n, (FILE*)p->ptr );
75 cyg_ldr_fs_seek( PELF_OBJECT p, cyg_uint32 offs )
77 return fseek( (FILE*)p->ptr, offs, SEEK_SET );
81 cyg_ldr_fs_close( PELF_OBJECT p )
83 return fclose( (FILE*)p->ptr );
87 cyg_ldr_open_library_fs( cyg_uint8 *ptr )
92 fp = fopen( ptr, "rb" );
95 cyg_ldr_last_error = "FILE NOT FOUND";
99 // Create a file object to keep track of this library.
100 e_obj = (PELF_OBJECT)malloc( sizeof( ELF_OBJECT ) );
101 CYG_ASSERT( e_obj != 0, "Cannot malloc() e_obj" );
104 cyg_ldr_last_error = "ERROR IN MALLOC";
108 memset( e_obj, 0, sizeof( ELF_OBJECT ) );
109 e_obj->ptr = (CYG_ADDRWORD)fp;
110 e_obj->mode = CYG_LDR_MODE_FILESYSTEM;
112 // Handlers for the file system open.
113 e_obj->read = cyg_ldr_fs_read;
114 e_obj->seek = cyg_ldr_fs_seek;
115 e_obj->close = cyg_ldr_fs_close;
120 cyg_ldr_close_library_fs( PELF_OBJECT p )