77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2010 by Thomas Martitz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __LOAD_CODE_H__
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#define __LOAD_CODE_H__
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#include "config.h"
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extern void *lc_open(const char *filename, unsigned char *buf, size_t buf_size);
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#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
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#include "system.h"
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/* header is always at the beginning of the blob, and handle actually points
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* to the start of the blob (the header is there) */
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static inline void *lc_open_from_mem(void* addr, size_t blob_size)
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{
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(void)blob_size;
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/* commit dcache and discard icache */
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commit_discard_idcache();
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return addr;
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}
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static inline void *lc_get_header(void *handle) { return handle; }
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/* no need to do anything */
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static inline void lc_close(void *handle) { (void)handle; }
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#elif (CONFIG_PLATFORM & PLATFORM_HOSTED)
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#ifdef APPLICATION
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/* App doesn't simulate code loading from a buffer */
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static inline void * lc_open_from_mem(void *addr, size_t blob_size)
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{
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return NULL;
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(void)addr; (void)blob_size;
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}
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#else
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extern void *lc_open_from_mem(void* addr, size_t blob_size);
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#endif
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extern void *lc_get_header(void *handle);
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extern void lc_close(void *handle);
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#endif
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/* this struct needs to be the first part of other headers
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* (lc_open() casts the other header to this one to load to the correct
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* address)
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*/
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struct lc_header {
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unsigned long magic;
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unsigned short target_id;
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unsigned short api_version;
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unsigned char *load_addr;
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unsigned char *end_addr;
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};
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#endif /* __LOAD_CODE_H__ */
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