/* Software License Agreement
 * 
 *     Copyright(C) 1994-2021 David Lindauer, (LADSoft)
 * 
 *     This file is part of the Orange C Compiler package.
 * 
 *     The Orange C Compiler package 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 3 of the License, or
 *     (at your option) any later version.
 * 
 *     The Orange C Compiler package 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 Orange C.  If not, see <http://www.gnu.org/licenses/>.
 * 
 *     contact information:
 *         email: TouchStone222@runbox.com <David Lindauer>
 * 
 */

#ifndef CoffHeader_h
#define CoffHeader_h

#define IMAGE_FILE_MACHINE_UNKNOWN 0
#define IMAGE_FILE_MACHINE_I386 0x14c

#define IMAGE_FILE_EXECUTABLE_IMAGE 2
#define IMAGE_FILE_32BIT_MACHINE 0x100
#define IMAGE_FILE_DLL 0x2000
#pragma pack(1)
struct CoffHeader
{
    short Machine;
    short NumberOfSections;
    int TimeDateStamp;
    int PointerToSymbolTable;
    int NumberOfSymbols;
    short SizeOfOptionalHeader;
    short Characteristics;
};

#define IMAGE_SCN_TYPE_NO_PAD               0x00000008
#define IMAGE_SCN_CNT_CODE	                0x00000020
#define IMAGE_SCN_CNT_INITIALIZED_DATA	    0x00000040
#define IMAGE_SCN_CNT_UNINITIALIZED_DATA	0x00000080
#define IMAGE_SCN_LNK_OTHER	                0x00000100
#define IMAGE_SCN_LNK_INFO	                0x00000200
#define IMAGE_SCN_LNK_REMOVE	            0x00000800
#define IMAGE_SCN_LNK_COMDAT	            0x00001000
#define IMAGE_SCN_GPREL	                    0x00008000
#define IMAGE_SCN_MEM_PURGEABLE	            0x00020000
#define IMAGE_SCN_MEM_16BIT	                0x00020000
#define IMAGE_SCN_MEM_LOCKED	            0x00040000
#define IMAGE_SCN_MEM_PRELOAD	            0x00080000
#define IMAGE_SCN_ALIGN_1BYTES	            0x00100000
#define IMAGE_SCN_ALIGN_2BYTES	            0x00200000
#define IMAGE_SCN_ALIGN_4BYTES	            0x00300000
#define IMAGE_SCN_ALIGN_8BYTES	            0x00400000
#define IMAGE_SCN_ALIGN_16BYTES	            0x00500000
#define IMAGE_SCN_ALIGN_32BYTES	            0x00600000
#define IMAGE_SCN_ALIGN_64BYTES	            0x00700000
#define IMAGE_SCN_ALIGN_128BYTES	        0x00800000
#define IMAGE_SCN_ALIGN_256BYTES	        0x00900000
#define IMAGE_SCN_ALIGN_512BYTES	        0x00A00000
#define IMAGE_SCN_ALIGN_1024BYTES	        0x00B00000
#define IMAGE_SCN_ALIGN_2048BYTES	        0x00C00000
#define IMAGE_SCN_ALIGN_4096BYTES	        0x00D00000
#define IMAGE_SCN_ALIGN_8192BYTES	        0x00E00000
#define IMAGE_SCN_ALIGN(x)                  (1 << (((x) >> 20)-1))
#define IMAGE_SCN_LNK_NRELOC_OVFL	        0x01000000
#define IMAGE_SCN_MEM_DISCARDABLE	        0x02000000
#define IMAGE_SCN_MEM_NOT_CACHED	        0x04000000
#define IMAGE_SCN_MEM_NOT_PAGED	            0x08000000
#define IMAGE_SCN_MEM_SHARED	            0x10000000
#define IMAGE_SCN_MEM_EXECUTE	            0x20000000
#define IMAGE_SCN_MEM_READ	                0x40000000
#define IMAGE_SCN_MEM_WRITE	                0x80000000

struct CoffSection
{
    char Name[8];
    int VirtualSize;
    int VirtualAddress;
    int SizeOfRawData;
    int PointerToRawData;
    int PointerToRelocations;
    int PointerToLinenumbers;
    short NumberOfRelocations;
    short NumberOfLinenumbers;
    int Characteristics;
} ;
#define IMAGE_COMDAT_SELECT_NODUPLICATES	1	
#define IMAGE_COMDAT_SELECT_ANY	            2
#define IMAGE_COMDAT_SELECT_SAME_SIZE	    3	
#define IMAGE_COMDAT_SELECT_EXACT_MATCH	    4	
#define IMAGE_COMDAT_SELECT_ASSOCIATIVE	    5
#define IMAGE_COMDAT_SELECT_LARGEST	        6	
struct CoffSectionAux
{
    int Length;
    short NumberOfRelocations;
    short NumberOfLinenumbers;
    int CheckSum;
    short Number;
    char Selection;
    char unused[3];
};

#define IMAGE_REL_I386_ABSOLUTE	0x0000	
#define IMAGE_REL_I386_DIR32	0x0006	
#define IMAGE_REL_I386_DIR32NB	0x0007	
#define IMAGE_REL_I386_SECTION	0x000A	
#define IMAGE_REL_I386_SECREL	0x000B	
#define IMAGE_REL_I386_TOKEN	0x000C	
#define IMAGE_REL_I386_SECREL7	0x000D	
#define IMAGE_REL_I386_REL32	0x0014	

struct CoffReloc
{
    int VirtualAddress;
    int SymbolTableIndex;
    short Type;
};

#define IMAGE_SYM_UNDEFINED	        0
#define IMAGE_SYM_ABSOLUTE	        -1
#define IMAGE_SYM_DEBUG	            -2

#define IMAGE_SYM_CLASS_EXTERNAL	2
#define IMAGE_SYM_CLASS_STATIC	    3
#define IMAGE_SYM_CLASS_LABEL       6
#define IMAGE_SYM_CLASS_FUNCTION	101
#define IMAGE_SYM_CLASS_FILE	    103
#define IMAGE_SYM_CLASS_SECTION     104

struct CoffSymbol
{
    char Name[8];
    int Value;
    short SectionNumber;
    short Type;
    char StorageClass;
    char NumberOfAuxSymbols;
};

#define COFF_LIB_SIGNATURE "!<arch>\n"
#define COFF_LIB_END_OF_HEADER "`\n"

struct CoffLinkerMemberHeader
{
    char Name[16];
    char Seconds[12];
    char User[6];
    char Group[6];
    char Mode[8];
    char Size[10];
    char EndOfHeader[2];
};
struct CoffLinkerSectionOneHeader
{
    unsigned  NumberOfSymbols;
    unsigned  OffsetArray[1];
};
#define IMPORT_ORDINAL	        0
#define IMPORT_NAME	            1
#define IMPORT_NAME_NOPREFIX	2
#define IMPORT_NAME_UNDECORATE	3

struct CoffImportHeader
{
    unsigned short Sig1;
    unsigned short Sig2;
    unsigned short Version;
    unsigned short MachineType;
    unsigned Date;
    unsigned Size;
    unsigned short OrdinalOrHint;
    unsigned short ImportType : 2;
    unsigned short ImportNameType : 3;
    unsigned short :11;
};
#pragma pack()
#endif