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/*! \file lx.h
\brief brickOS executable file support
\author Markus L. Noga <markus@noga.de>
*/
/*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is legOS code, released October 2, 1999.
*
* The Initial Developer of the Original Code is Markus L. Noga.
* Portions created by Markus L. Noga are Copyright (C) 1999
* Markus L. Noga. All Rights Reserved.
*
* Contributor(s): everyone discussing LNP at LUGNET
*/
#ifndef __lx_h__
#define __lx_h__
#define HEADER_FIELDS 8 //!< number of header fields stored on disk
typedef struct {
unsigned short version; //!< version number
unsigned short base; //!< current text segment base address
unsigned short text_size; //!< size of read-only segment
unsigned short data_size; //!< size of initialized data segment
unsigned short bss_size; //!< size of uninitialized data segment
unsigned short stack_size; //!< stack size
unsigned short offset; //!< start offset from text
unsigned short num_relocs; //!< number of relocations.
unsigned char *text; //!< program text (not stored on disk)
unsigned short *reloc; //!< relocations (not stored on disk)
} lx_t; //!< the brickOS executable type
//! write a brickOS exectutable to a file
int lx_write(const lx_t *lx,const unsigned char *filename);
//! read a brickOS executable from a file
int lx_read(lx_t *lx,const unsigned char *filename);
//! relocate a brickOS executable to a new base address (may be called repeatedly).
void lx_relocate(lx_t *lx,unsigned short base);
#endif // __lx_h__
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