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Diffstat (limited to 'include/iprt/formats/lx.h')
| -rw-r--r-- | include/iprt/formats/lx.h | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/include/iprt/formats/lx.h b/include/iprt/formats/lx.h new file mode 100644 index 00000000..95c8b479 --- /dev/null +++ b/include/iprt/formats/lx.h @@ -0,0 +1,506 @@ +/* $Id: lx.h $ */ +/** @file + * LX structures, types and defines. + */ + +/* + * Copyright (c) 2006-2007 Knut St. Osmundsen <bird-kStuff-spamix@anduin.net> + * + * 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 <iprt/types.h> +#include <iprt/assertcompile.h> + +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 */ + |