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Member "file-5.35/magic/Magdir/coff" (19 Aug 2018, 2932 Bytes) of package /linux/misc/file-5.35.tar.gz:


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    1 
    2 #------------------------------------------------------------------------------
    3 # $File: coff,v 1.3 2018/08/01 10:34:03 christos Exp $
    4 # coff: file(1) magic for Common Object Files not specific to known cpu types or manufactures
    5 #
    6 # COFF
    7 #
    8 # by Joerg Jenderek at Oct 2015
    9 # https://en.wikipedia.org/wiki/COFF
   10 # https://de.wikipedia.org/wiki/Common_Object_File_Format
   11 # http://www.delorie.com/djgpp/doc/coff/filhdr.html
   12 
   13 # display name+variables+flags of Common Object Files Format (32bit)
   14 # Maybe used also in adi,att3b,clipper,hitachi-sh,hp,ibm6000,intel,
   15 # mips,motorola,msdos,osf1,sharc,varied.out,vax
   16 0	name				display-coff
   17 # test for unused flag bits (0x8000,0x0800,0x0400,0x0200,x0080) in f_flags
   18 >18	uleshort&0x8E80	0
   19 >>0	clear		x
   20 # f_magic - magic number
   21 # DJGPP, 80386 COFF executable, MS Windows COFF Intel 80386 object file (./intel)
   22 >>0	uleshort	0x014C		Intel 80386
   23 # Hitachi SH big-endian COFF (./hitachi-sh)
   24 >>0	uleshort	0x0500		Hitachi SH big-endian
   25 # Hitachi SH little-endian COFF (./hitachi-sh)
   26 >>0	uleshort	0x0550		Hitachi SH little-endian
   27 # executable (RISC System/6000 V3.1) or obj module (./ibm6000)
   28 #>>0	uleshort	0x01DF
   29 # MS Windows COFF Intel Itanium, AMD64
   30 # https://msdn.microsoft.com/en-us/library/windows/desktop/ms680313(v=vs.85).aspx
   31 >>0	uleshort	0x0200		Intel ia64
   32 >>0	uleshort	0x8664		Intel amd64
   33 # TODO for other COFFs
   34 #>>0	uleshort	0xABCD		COFF_TEMPLATE
   35 >>0	default		x
   36 >>>0	uleshort	x		type 0x%04x
   37 >>0	uleshort	x		COFF
   38 # F_EXEC flag bit
   39 >>18	leshort		^0x0002		object file
   40 #!:mime	application/x-coff
   41 #!:ext cof/o/obj/lib
   42 >>18	leshort		&0x0002		executable
   43 #!:mime	application/x-coffexec
   44 # F_RELFLG flag bit,static object
   45 >>18	leshort		&0x0001		\b, no relocation info
   46 # F_LNNO flag bit
   47 >>18	leshort		&0x0004		\b, no line number info
   48 # F_LSYMS flag bit
   49 >>18	leshort		&0x0008		\b, stripped
   50 >>18	leshort		^0x0008		\b, not stripped
   51 # flags in other COFF versions
   52 #0x0010    F_FDPR_PROF
   53 #0x0020    F_FDPR_OPTI
   54 #0x0040    F_DSA
   55 # F_AR32WR flag bit
   56 #>>>18	leshort		&0x0100		\b, 32 bit little endian
   57 #0x1000    F_DYNLOAD
   58 #0x2000    F_SHROBJ
   59 #0x4000    F_LOADONLY
   60 # f_nscns - number of sections
   61 >>2	uleshort	<2		\b, %d section
   62 >>2	uleshort	>1		\b, %d sections
   63 # f_timdat - file time & date stamp only for little endian
   64 #>>4	date		x		\b, %s
   65 # f_symptr - symbol table pointer, only for not stripped
   66 >>8	ulelong		>0		\b, symbol offset=0x%x
   67 # f_nsyms - number of symbols, only for not stripped
   68 >>12	ulelong		>0		\b, %d symbols
   69 # f_opthdr - optional header size
   70 >>16	uleshort	>0		\b, optional header size %d
   71 # at offset 20 can be optional header, extra bytes FILHSZ-20 because
   72 # do not rely on sizeof(FILHDR) to give the correct size for header.
   73 # or first section header
   74 # additional variables for other COFF files
   75 # >20	beshort		0407		(impure)
   76 # >20	beshort		0410		(pure)
   77 # >20	beshort		0413		(demand paged)
   78 # >20	beshort		0421		(standalone)
   79 # >22	leshort		>0		- version %d
   80 # >168	string		.lowmem		Apple toolbox
   81