/* 
 *	HT Editor
 *	peffstruc.h
 *
 *	Copyright (C) 1999-2002 Stefan Weyergraf
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License version 2 as
 *	published by the Free Software Foundation.
 *
 *	This program 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 this program; if not, write to the Free Software
 *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*	mostly assembled from TIS ELF 1.1g and BFD-ELF 	*/

#ifndef __PEFFSTRUC_H__
#define __PEFFSTRUC_H__

#include "io/types.h"

enum PEF_ARCH {
	PEFARCH_PowerPC,
	PEFARCH_M68K
};

struct PEF_CONTAINER_HEADER {
	byte	tag1[4];
	byte	tag2[4];
	byte	architecture[4];
	uint32	formatVersion;	// normally 1
	uint32	dateTimeStamp;	// number of seconds measured from January 1, 1904
	uint32	oldDefVersion;
	uint32	oldImpVersion;
	uint32	currentVersion;
	uint16	sectionCount;
	uint16	instSectionCount;
	uint32	reservedA;
} PACKED;

struct PEF_SECTION_HEADER {
	sint32	nameOffset;	// 0xffffffff for no name
	uint32	defaultAddress;
	uint32	totalSize;
	uint32	unpackedSize;
	uint32	packedSize;
	uint32	containerOffset;
	byte	sectionKind;
	byte	shareKind;
	byte	alignment;
	byte	reservedA;
} PACKED;

// sectionKind
#define PEF_SK_Code		0	// R-x
#define PEF_SK_UnpackedData	1	// RW-
#define PEF_SK_PatternInitData	2	// RW-
#define PEF_SK_ConstData	3	// R--
#define PEF_SK_Loader		4
#define PEF_SK_Debug		5
#define PEF_SK_ExecutableData	6	// RWX
#define PEF_SK_Exception	7
#define PEF_SK_Traceback	8

// shareKind
#define PEF_SHK_ProcessShare	1
#define PEF_SHK_GlobalShare	4
#define PEF_SHK_ProtectedShare	5

struct PEF_LOADER_INFO_HEADER {
	sint32	mainSection;          
	uint32	mainOffset;           
	sint32	initSection;          
	uint32	initOffset;           
	sint32	termSection;          
	uint32	termOffset;           
	uint32	importedLibraryCount;
	uint32	totalImportedSymbolCount;
	uint32	relocSectionCount;
	uint32	relocInstrOffset;
	uint32	loaderStringsOffset;
	uint32	exportHashOffset;
	uint32	exportHashTablePower;
	uint32	exportedSymbolCount;
} PACKED;

struct PEFAddress {
	uint32 a32;
} PACKED;

struct PEF_ImportedLibrary {
	uint32	nameOffset;
	uint32	oldImpVersion;
	uint32	currentVersion;
	uint32	importedSymbolCount;
	uint32	firstImportedSymbol;
	uint8	options;
	uint8	reservedA;
	uint16	reservedB;
} PACKED;

#define PEF_CODE_SYMBOL		0	// code address
#define PEF_DATA_SYMBOL		1	// data address
#define PEF_TVECT_SYMBOL	2	// standard procedure pointer
#define PEF_TOC_SYMBOL		3	// direct data area (table of contents) symbol
#define PEF_GLUE_SYMBOL		4	// linker-inserted glue symbol

struct PEF_LoaderRelocationHeader {
	uint16	sectionIndex;
	uint16	reservedA;
	uint32	relocCount;
	uint32	firstRelocOffset;
} PACKED;

//#define	PEF_

extern byte PEF_SECTION_HEADER_struct[];
extern byte PEF_CONTAINER_HEADER_struct[];
extern byte PEF_LOADER_INFO_HEADER_struct[];
extern byte PEF_ImportedLibrary_struct[];

#endif /* __PEFFSTRUC_H__ */