coff revision 328875
1 2#------------------------------------------------------------------------------ 3# $File: coff,v 1.2 2017/03/17 21:35:28 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 160 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# TODO for other COFFs 30#>>0 uleshort 0xABCD COFF_TEMPLATE 31>>0 default x 32>>>0 uleshort x type 0x%04x 33>>0 uleshort x COFF 34# F_EXEC flag bit 35>>18 leshort ^0x0002 object file 36#!:mime application/x-coff 37#!:ext cof/o/obj/lib 38>>18 leshort &0x0002 executable 39#!:mime application/x-coffexec 40# F_RELFLG flag bit,static object 41>>18 leshort &0x0001 \b, no relocation info 42# F_LNNO flag bit 43>>18 leshort &0x0004 \b, no line number info 44# F_LSYMS flag bit 45>>18 leshort &0x0008 \b, stripped 46>>18 leshort ^0x0008 \b, not stripped 47# flags in other COFF versions 48#0x0010 F_FDPR_PROF 49#0x0020 F_FDPR_OPTI 50#0x0040 F_DSA 51# F_AR32WR flag bit 52#>>>18 leshort &0x0100 \b, 32 bit little endian 53#0x1000 F_DYNLOAD 54#0x2000 F_SHROBJ 55#0x4000 F_LOADONLY 56# f_nscns - number of sections 57>>2 uleshort <2 \b, %d section 58>>2 uleshort >1 \b, %d sections 59# f_timdat - file time & date stamp only for little endian 60#>>4 date x \b, %s 61# f_symptr - symbol table pointer, only for not stripped 62>>8 ulelong >0 \b, symbol offset=0x%x 63# f_nsyms - number of symbols, only for not stripped 64>>12 ulelong >0 \b, %d symbols 65# f_opthdr - optional header size 66>>16 uleshort >0 \b, optional header size %d 67# at offset 20 can be optional header, extra bytes FILHSZ-20 because 68# do not rely on sizeof(FILHDR) to give the correct size for header. 69# or first section header 70# additional variables for other COFF files 71# >20 beshort 0407 (impure) 72# >20 beshort 0410 (pure) 73# >20 beshort 0413 (demand paged) 74# >20 beshort 0421 (standalone) 75# >22 leshort >0 - version %d 76# >168 string .lowmem Apple toolbox 77 78