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Diffstat (limited to 'magic/Magdir/coff')
| -rw-r--r-- | magic/Magdir/coff | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/magic/Magdir/coff b/magic/Magdir/coff new file mode 100644 index 0000000..b4addec --- /dev/null +++ b/magic/Magdir/coff @@ -0,0 +1,77 @@ + +#------------------------------------------------------------------------------ +# $File: coff,v 1.2 2017/03/17 21:35:28 christos Exp $ +# coff: file(1) magic for Common Object Files not specific to known cpu types or manufactures +# +# COFF +# +# by Joerg Jenderek at Oct 2015 +# https://en.wikipedia.org/wiki/COFF +# https://de.wikipedia.org/wiki/Common_Object_File_Format +# http://www.delorie.com/djgpp/doc/coff/filhdr.html + +# display name+variables+flags of Common Object Files Format (32bit) +# Maybe used also in adi,att3b,clipper,hitachi-sh,hp,ibm6000,intel, +# mips,motorola,msdos,osf1,sharc,varied.out,vax +0 name display-coff +# test for unused flag bits (0x8000,0x0800,0x0400,0x0200,x0080) in f_flags +>18 uleshort&0x8E80 0 +>>0 clear x +# f_magic - magic number +# DJGPP, 80386 COFF executable, MS Windows COFF Intel 80386 object file (./intel) +>>0 uleshort 0x014C Intel 80386 +# Hitachi SH big-endian COFF (./hitachi-sh) +>>0 uleshort 0x0500 Hitachi SH big-endian +# Hitachi SH little-endian COFF (./hitachi-sh) +>>0 uleshort 0x0550 Hitachi SH little-endian +# executable (RISC System/6000 V3.1) or obj module (./ibm6000) +#>>0 uleshort 0x01DF +# TODO for other COFFs +#>>0 uleshort 0xABCD COFF_TEMPLATE +>>0 default x +>>>0 uleshort x type 0x%04x +>>0 uleshort x COFF +# F_EXEC flag bit +>>18 leshort ^0x0002 object file +#!:mime application/x-coff +#!:ext cof/o/obj/lib +>>18 leshort &0x0002 executable +#!:mime application/x-coffexec +# F_RELFLG flag bit,static object +>>18 leshort &0x0001 \b, no relocation info +# F_LNNO flag bit +>>18 leshort &0x0004 \b, no line number info +# F_LSYMS flag bit +>>18 leshort &0x0008 \b, stripped +>>18 leshort ^0x0008 \b, not stripped +# flags in other COFF versions +#0x0010 F_FDPR_PROF +#0x0020 F_FDPR_OPTI +#0x0040 F_DSA +# F_AR32WR flag bit +#>>>18 leshort &0x0100 \b, 32 bit little endian +#0x1000 F_DYNLOAD +#0x2000 F_SHROBJ +#0x4000 F_LOADONLY +# f_nscns - number of sections +>>2 uleshort <2 \b, %d section +>>2 uleshort >1 \b, %d sections +# f_timdat - file time & date stamp only for little endian +#>>4 date x \b, %s +# f_symptr - symbol table pointer, only for not stripped +>>8 ulelong >0 \b, symbol offset=0x%x +# f_nsyms - number of symbols, only for not stripped +>>12 ulelong >0 \b, %d symbols +# f_opthdr - optional header size +>>16 uleshort >0 \b, optional header size %d +# at offset 20 can be optional header, extra bytes FILHSZ-20 because +# do not rely on sizeof(FILHDR) to give the correct size for header. +# or first section header +# additional variables for other COFF files +# >20 beshort 0407 (impure) +# >20 beshort 0410 (pure) +# >20 beshort 0413 (demand paged) +# >20 beshort 0421 (standalone) +# >22 leshort >0 - version %d +# >168 string .lowmem Apple toolbox + |