/* $Id: lx.h 76585 2019-01-01 06:31:29Z vboxsync $ */ /** @file * LX structures, types and defines. */ /* * Copyright (c) 2006-2007 Knut St. Osmundsen * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef IPRT_INCLUDED_formats_lx_h #define IPRT_INCLUDED_formats_lx_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include #include RT_C_DECLS_BEGIN #ifndef IMAGE_OS2_SIGNATURE_LX /** LX signature ("LX") */ # define IMAGE_LX_SIGNATURE K_LE2H_U16('L' | ('X' << 8)) #endif /** * Linear eXecutable header. * This structure is exactly 196 bytes long. */ typedef struct e32_exe { uint8_t e32_magic[2]; uint8_t e32_border; uint8_t e32_worder; uint32_t e32_level; uint16_t e32_cpu; uint16_t e32_os; uint32_t e32_ver; uint32_t e32_mflags; uint32_t e32_mpages; uint32_t e32_startobj; uint32_t e32_eip; uint32_t e32_stackobj; uint32_t e32_esp; uint32_t e32_pagesize; uint32_t e32_pageshift; /** The size of the fixup section. * The fixup section consists of the fixup page table, the fixup record table, * the import module table, and the import procedure name table. */ uint32_t e32_fixupsize; uint32_t e32_fixupsum; /** The size of the resident loader section. * This includes the object table, the object page map table, the resource table, the resident name table, * the entry table, the module format directives table, and the page checksum table (?). */ uint32_t e32_ldrsize; /** The checksum of the loader section. 0 if not calculated. */ uint32_t e32_ldrsum; /** The offset of the object table relative to this structure. */ uint32_t e32_objtab; /** Count of objects. */ uint32_t e32_objcnt; /** The offset of the object page map table relative to this structure. */ uint32_t e32_objmap; /** The offset of the object iterated pages (whatever this is used for) relative to the start of the file. */ uint32_t e32_itermap; /** The offset of the resource table relative to this structure. */ uint32_t e32_rsrctab; /** The number of entries in the resource table. */ uint32_t e32_rsrccnt; /** The offset of the resident name table relative to this structure. */ uint32_t e32_restab; /** The offset of the entry (export) table relative to this structure. */ uint32_t e32_enttab; /** The offset of the module format directives table relative to this structure. */ uint32_t e32_dirtab; /** The number of entries in the module format directives table. */ uint32_t e32_dircnt; /** The offset of the fixup page table relative to this structure. */ uint32_t e32_fpagetab; /** The offset of the fixup record table relative to this structure. */ uint32_t e32_frectab; /** The offset of the import module name table relative to this structure. */ uint32_t e32_impmod; /** The number of entries in the import module name table. */ uint32_t e32_impmodcnt; /** The offset of the import procedure name table relative to this structure. */ uint32_t e32_impproc; /** The offset of the page checksum table relative to this structure. */ uint32_t e32_pagesum; /** The offset of the data pages relative to the start of the file. */ uint32_t e32_datapage; /** The number of preload pages (ignored). */ uint32_t e32_preload; /** The offset of the non-resident name table relative to the start of the file. */ uint32_t e32_nrestab; /** The size of the non-resident name table. */ uint32_t e32_cbnrestab; uint32_t e32_nressum; uint32_t e32_autodata; uint32_t e32_debuginfo; uint32_t e32_debuglen; uint32_t e32_instpreload; uint32_t e32_instdemand; uint32_t e32_heapsize; uint32_t e32_stacksize; uint8_t e32_res3[20]; } e32_exe; AssertCompileSize(struct e32_exe, 196); /** e32_magic[0] */ #define E32MAGIC1 'L' /** e32_magic[1] */ #define E32MAGIC2 'X' /** MAKEWORD(e32_magic[0], e32_magic[1]) */ #define E32MAGIC 0x584c /** e32_border - little endian */ #define E32LEBO 0 /** e32_border - big endian */ #define E32BEBO 1 /** e32_worder - little endian */ #define E32LEWO 0 /** e32_worder - big endian */ #define E32BEWO 1 /** e32_level */ #define E32LEVEL UINT32_C(0) /** e32_cpu - 80286 */ #define E32CPU286 1 /** e32_cpu - 80386 */ #define E32CPU386 2 /** e32_cpu - 80486 */ #define E32CPU486 3 /** e32_pagesize */ #define OBJPAGELEN UINT32_C(0x1000) /** @name e32_mflags * @{ */ /** App Type: Fullscreen only. */ #define E32NOPMW UINT32_C(0x00000100) /** App Type: PM API. */ #define E32PMAPI UINT32_C(0x00000300) /** App Type: PM VIO compatible. */ #define E32PMW UINT32_C(0x00000200) /** Application type mask. */ #define E32APPMASK UINT32_C(0x00000300) /** Executable module. */ #define E32MODEXE UINT32_C(0x00000000) /** Dynamic link library (DLL / library) module. */ #define E32MODDLL UINT32_C(0x00008000) /** Protected memory DLL. */ #define E32PROTDLL UINT32_C(0x00010000) /** Physical Device Driver. */ #define E32MODPDEV UINT32_C(0x00020000) /** Virtual Device Driver. */ #define E32MODVDEV UINT32_C(0x00028000) /** Device driver */ #define E32DEVICE E32MODPDEV /** Dynamic link library (DLL / library) module. */ #define E32NOTP E32MODDLL /** Protected memory DLL. */ #define E32MODPROTDLL (E32MODDLL | E32PROTDLL) /** Module Type mask. */ #define E32MODMASK UINT32_C(0x00038000) /** Not loadable (linker error). */ #define E32NOLOAD UINT32_C(0x00002000) /** No internal fixups. */ #define E32NOINTFIX UINT32_C(0x00000010) /** No external fixups (i.e. imports). */ #define E32NOEXTFIX UINT32_C(0x00000020) /** System DLL, no internal fixups. */ #define E32SYSDLL UINT32_C(0x00000008) /** Global (set) or per instance (cleared) library initialization. */ #define E32LIBINIT UINT32_C(0x00000004) /** Global (set) or per instance (cleared) library termination. */ #define E32LIBTERM UINT32_C(0x40000000) /** Indicates when set in an executable that the process isn't SMP safe. */ #define E32NOTMPSAFE UINT32_C(0x00080000) /** @} */ /** @name Relocations (aka Fixups). * @{ */ typedef union r32_offset { uint16_t offset16; uint32_t offset32; } r32_offset; AssertCompileSize(r32_offset, 4); /** A relocation. * @remark this structure isn't very usable since LX relocations comes in too many size variations. */ #pragma pack(1) typedef struct r32_rlc { uint8_t nr_stype; uint8_t nr_flags; int16_t r32_soff; uint16_t r32_objmod; union targetid { r32_offset intref; union extfixup { r32_offset proc; uint32_t ord; } extref; struct addfixup { uint16_t entry; r32_offset addval; } addfix; } r32_target; uint16_t r32_srccount; uint16_t r32_chain; } r32_rlc; #pragma pack() AssertCompileSize(r32_rlc, 16); /** @name Some attempt at size constanstants. * @{ */ #define RINTSIZE16 8 #define RINTSIZE32 10 #define RORDSIZE 8 #define RNAMSIZE16 8 #define RNAMSIZE32 10 #define RADDSIZE16 10 #define RADDSIZE32 12 /** @} */ /** @name nr_stype (source flags) * @{ */ #define NRSBYT 0x00 #define NRSSEG 0x02 #define NRSPTR 0x03 #define NRSOFF 0x05 #define NRPTR48 0x06 #define NROFF32 0x07 #define NRSOFF32 0x08 #define NRSTYP 0x0f #define NRSRCMASK 0x0f #define NRALIAS 0x10 #define NRCHAIN 0x20 /** @} */ /** @name nr_flags (target flags) * @{ */ #define NRRINT 0x00 #define NRRORD 0x01 #define NRRNAM 0x02 #define NRRENT 0x03 #define NRRTYP 0x03 #define NRADD 0x04 #define NRICHAIN 0x08 #define NR32BITOFF 0x10 #define NR32BITADD 0x20 #define NR16OBJMOD 0x40 #define NR8BITORD 0x80 /** @} */ /** @} */ /** @name The Object Table (aka segment table) * @{ */ /** The Object Table Entry. */ typedef struct o32_obj { /** The size of the object. */ uint32_t o32_size; /** The base address of the object. */ uint32_t o32_base; /** Object flags. */ uint32_t o32_flags; /** Page map index. */ uint32_t o32_pagemap; /** Page map size. (doesn't need to be o32_size >> page shift). */ uint32_t o32_mapsize; /** Reserved */ uint32_t o32_reserved; } o32_obj; AssertCompileSize(o32_obj, 24); /** @name o32_flags * @{ */ /** Read access. */ #define OBJREAD UINT32_C(0x00000001) /** Write access. */ #define OBJWRITE UINT32_C(0x00000002) /** Execute access. */ #define OBJEXEC UINT32_C(0x00000004) /** Resource object. */ #define OBJRSRC UINT32_C(0x00000008) /** The object is discarable (i.e. don't swap, just load in pages from the executable). * This overlaps a bit with object type. */ #define OBJDISCARD UINT32_C(0x00000010) /** The object is shared. */ #define OBJSHARED UINT32_C(0x00000020) /** The object has preload pages. */ #define OBJPRELOAD UINT32_C(0x00000040) /** The object has invalid pages. */ #define OBJINVALID UINT32_C(0x00000080) /** Non-permanent, link386 bug. */ #define LNKNONPERM UINT32_C(0x00000600) /** Non-permanent, correct 'value'. */ #define OBJNONPERM UINT32_C(0x00000000) /** Obj Type: The object is permanent and swappable. */ #define OBJPERM UINT32_C(0x00000100) /** Obj Type: The object is permanent and resident (i.e. not swappable). */ #define OBJRESIDENT UINT32_C(0x00000200) /** Obj Type: The object is resident and contigious. */ #define OBJCONTIG UINT32_C(0x00000300) /** Obj Type: The object is permanent and long locable. */ #define OBJDYNAMIC UINT32_C(0x00000400) /** Object type mask. */ #define OBJTYPEMASK UINT32_C(0x00000700) /** x86: The object require an 16:16 alias. */ #define OBJALIAS16 UINT32_C(0x00001000) /** x86: Big/Default selector setting, i.e. toggle 32-bit or 16-bit. */ #define OBJBIGDEF UINT32_C(0x00002000) /** x86: conforming selector setting (weird stuff). */ #define OBJCONFORM UINT32_C(0x00004000) /** x86: IOPL. */ #define OBJIOPL UINT32_C(0x00008000) /** @} */ /** A Object Page Map Entry. */ typedef struct o32_map { /** The file offset of the page. */ uint32_t o32_pagedataoffset; /** The number of bytes of raw page data. */ uint16_t o32_pagesize; /** Per page flags describing how the page is encoded in the file. */ uint16_t o32_pageflags; } o32_map; AssertCompileSize(o32_map, 8); /** @name o32 o32_pageflags * @{ */ /** Raw page (uncompressed) in the file. */ #define VALID UINT16_C(0x0000) /** RLE encoded page in file. */ #define ITERDATA UINT16_C(0x0001) /** Invalid page, nothing in the file. */ #define INVALID UINT16_C(0x0002) /** Zero page, nothing in file. */ #define ZEROED UINT16_C(0x0003) /** range of pages (what is this?) */ #define RANGE UINT16_C(0x0004) /** Compressed page in file. */ #define ITERDATA2 UINT16_C(0x0005) /** @} */ /** Iteration Record format (RLE compressed page). */ #pragma pack(1) typedef struct LX_Iter { /** Number of iterations. */ uint16_t LX_nIter; /** The number of bytes that's being iterated. */ uint16_t LX_nBytes; /** The bytes. */ uint8_t LX_Iterdata; } LX_Iter; #pragma pack() AssertCompileSize(LX_Iter, 5); /** @} */ /** A Resource Table Entry */ #pragma pack(1) typedef struct rsrc32 { /** Resource Type. */ uint16_t type; /** Resource ID. */ uint16_t name; /** Resource size in bytes. */ uint32_t cb; /** The index of the object containing the resource. */ uint16_t obj; /** Offset of the resource that within the object. */ uint32_t offset; } rsrc32; #pragma pack() AssertCompileSize(rsrc32, 14); /** @name The Entry Table (aka Export Table) * @{ */ /** Entry bundle. * Header descripting up to 255 entries that follows immediatly after this structure. */ typedef struct b32_bundle { /** The number of entries. */ uint8_t b32_cnt; /** The type of bundle. */ uint8_t b32_type; /** The index of the object containing these entry points. */ uint16_t b32_obj; } b32_bundle; AssertCompileSize(b32_bundle, 4); /** @name b32_type * @{ */ /** Empty bundle, filling up unused ranges of ordinals. */ #define EMPTY 0x00 /** 16-bit offset entry point. */ #define ENTRY16 0x01 /** 16-bit callgate entry point. */ #define GATE16 0x02 /** 32-bit offset entry point. */ #define ENTRY32 0x03 /** Forwarder entry point. */ #define ENTRYFWD 0x04 /** Typing information present indicator. */ #define TYPEINFO 0x80 /** @} */ /** Entry point. */ #pragma pack(1) typedef struct e32_entry { /** Entry point flags */ uint8_t e32_flags; /* Entry point flags */ union entrykind { /** ENTRY16 or ENTRY32. */ r32_offset e32_offset; /** GATE16 */ struct scallgate { /** Offset into segment. */ uint16_t offset; /** The callgate selector */ uint16_t callgate; } e32_callgate; /** ENTRYFWD */ struct fwd { /** Module ordinal number (i.e. into the import module table). */ uint16_t modord; /** Procedure name or ordinal number. */ uint32_t value; } e32_fwd; } e32_variant; } e32_entry; #pragma pack() /** @name e32_flags * @{ */ /** Exported entry (set) or private entry (clear). */ #define E32EXPORT 0x01 /** Uses shared data. */ #define E32SHARED 0x02 /** Parameter word count mask. */ #define E32PARAMS 0xf8 /** ENTRYFWD: Imported by ordinal (set) or by name (clear). */ #define FWD_ORDINAL 0x01 /** @} */ /** @name dunno * @{ */ #define FIXENT16 3 #define FIXENT32 5 #define GATEENT16 5 #define FWDENT 7 /** @} */ RT_C_DECLS_END #endif /* !IPRT_INCLUDED_formats_lx_h */