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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2010 by Thomas Martitz
*
* This program 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
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __LOAD_CODE_H__
#define __LOAD_CODE_H__
#include "config.h"
#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
#include "system.h"
extern void *lc_open(const char *filename, unsigned char *buf, size_t buf_size);
/* header is always at the beginning of the blob, and handle actually points
* to the start of the blob (the header is there) */
static inline void *lc_open_from_mem(void* addr, size_t blob_size)
{
(void)blob_size;
/* commit dcache and discard icache */
cpucache_invalidate();
return addr;
}
static inline void *lc_get_header(void *handle) { return handle; }
/* no need to do anything */
static inline void lc_close(void *handle) { (void)handle; }
#elif (CONFIG_PLATFORM & PLATFORM_HOSTED)
/* don't call these directly for loading code
* they're to be wrapped by platform specific functions */
#ifdef WIN32
/* windows' LoadLibrary can only handle ucs2, no utf-8 */
#define _lc_open_char wchar_t
#else
#define _lc_open_char char
#endif
extern void *_lc_open(const _lc_open_char *filename, unsigned char *buf, size_t buf_size);
extern void *_lc_get_header(void *handle);
extern void _lc_close(void *handle);
extern void *lc_open(const char *filename, unsigned char *buf, size_t buf_size);
extern void *lc_open_from_mem(void *addr, size_t blob_size);
extern void *lc_get_header(void *handle);
extern void lc_close(void *handle);
extern const char* lc_last_error(void);
#endif
/* this struct needs to be the first part of other headers
* (lc_open() casts the other header to this one to load to the correct
* address)
*/
struct lc_header {
unsigned long magic;
unsigned short target_id;
unsigned short api_version;
unsigned char *load_addr;
unsigned char *end_addr;
};
#endif /* __LOAD_CODE_H__ */
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