source: trunk/kLdr/kLdrModLX.h@ 2996

Last change on this file since 2996 was 2889, checked in by bird, 19 years ago

started on fixups.
  • Property svn:keywords set to Id
File size: 14.4 KB
Line 
1/* $Id $ */
2
3#ifndef __kLdrModLX_h__
4#define __kLdrModLX_h__
5
6
7#ifndef IMAGE_OS2_SIGNATURE_LX
8/** LX signature ("LX") */
9# define IMAGE_LX_SIGNATURE KLDRHLP_LE2H_U16('L' | ('X' << 8))
10#endif
11
12#pragma pack(1)
13
14/**
15 * Linear eXecutable header.
16 * This structure is exactly 196 bytes long.
17 */
18struct e32_exe
19{
20 uint8_t e32_magic[2];
21 uint8_t e32_border;
22 uint8_t e32_worder;
23 uint32_t e32_level;
24 uint16_t e32_cpu;
25 uint16_t e32_os;
26 uint32_t e32_ver;
27 uint32_t e32_mflags;
28 uint32_t e32_mpages;
29 uint32_t e32_startobj;
30 uint32_t e32_eip;
31 uint32_t e32_stackobj;
32 uint32_t e32_esp;
33 uint32_t e32_pagesize;
34 uint32_t e32_pageshift;
35 /** The size of the fixup section.
36 * The fixup section consists of the fixup page table, the fixup record table,
37 * the import module table, and the import procedure name table.
38 */
39 uint32_t e32_fixupsize;
40 uint32_t e32_fixupsum;
41 /** The size of the resident loader section.
42 * This includes the object table, the object page map table, the resource table, the resident name table,
43 * the entry table, the module format directives table, and the page checksum table (?). */
44 uint32_t e32_ldrsize;
45 /** The checksum of the loader section. 0 if not calculated. */
46 uint32_t e32_ldrsum;
47 /** The offset of the object table relative to this structure. */
48 uint32_t e32_objtab;
49 /** Count of objects. */
50 uint32_t e32_objcnt;
51 /** The offset of the object page map table relative to this structure. */
52 uint32_t e32_objmap;
53 /** The offset of the object iterated pages (whatever this is used for) relative to the start of the file. */
54 uint32_t e32_itermap;
55 /** The offset of the resource table relative to this structure. */
56 uint32_t e32_rsrctab;
57 /** The number of entries in the resource table. */
58 uint32_t e32_rsrccnt;
59 /** The offset of the resident name table relative to this structure. */
60 uint32_t e32_restab;
61 /** The offset of the entry (export) table relative to this structure. */
62 uint32_t e32_enttab;
63 /** The offset of the module format directives table relative to this structure. */
64 uint32_t e32_dirtab;
65 /** The number of entries in the module format directives table. */
66 uint32_t e32_dircnt;
67 /** The offset of the fixup page table relative to this structure. */
68 uint32_t e32_fpagetab;
69 /** The offset of the fixup record table relative to this structure. */
70 uint32_t e32_frectab;
71 /** The offset of the import module name table relative to this structure. */
72 uint32_t e32_impmod;
73 /** The number of entries in the import module name table. */
74 uint32_t e32_impmodcnt;
75 /** The offset of the import procedure name table relative to this structure. */
76 uint32_t e32_impproc;
77 /** The offset of the page checksum table relative to this structure. */
78 uint32_t e32_pagesum;
79 /** The offset of the data pages relative to the start of the file. */
80 uint32_t e32_datapage;
81 /** The number of preload pages (ignored). */
82 uint32_t e32_preload;
83 /** The offset of the non-resident name table relative to the start of the file. */
84 uint32_t e32_nrestab;
85 /** The size of the non-resident name table. */
86 uint32_t e32_cbnrestab;
87 uint32_t e32_nressum;
88 uint32_t e32_autodata;
89 uint32_t e32_debuginfo;
90 uint32_t e32_debuglen;
91 uint32_t e32_instpreload;
92 uint32_t e32_instdemand;
93 uint32_t e32_heapsize;
94 uint32_t e32_stacksize;
95 uint8_t e32_res3[20];
96};
97
98/** e32_magic[0] */
99#define E32MAGIC1 'L'
100/** e32_magic[1] */
101#define E32MAGIC2 'X'
102/** MAKEWORD(e32_magic[0], e32_magic[1]) */
103#define E32MAGIC 0x584c
104/** e32_border - little endian */
105#define E32LEBO 0
106/** e32_border - big endian */
107#define E32BEBO 1
108/** e32_worder - little endian */
109#define E32LEWO 0
110/** e32_worder - big endian */
111#define E32BEWO 1
112/** e32_level */
113#define E32LEVEL UINT32_C(0)
114/** e32_cpu - 80286 */
115#define E32CPU286 1
116/** e32_cpu - 80386 */
117#define E32CPU386 2
118/** e32_cpu - 80486 */
119#define E32CPU486 3
120/** e32_pagesize */
121#define OBJPAGELEN UINT32_C(0x1000)
122
123
124/** @name e32_mflags
125 * @{ */
126/** App Type: Fullscreen only. */
127#define E32NOPMW UINT32_C(0x00000100)
128/** App Type: PM API. */
129#define E32PMAPI UINT32_C(0x00000300)
130/** App Type: PM VIO compatible. */
131#define E32PMW UINT32_C(0x00000200)
132/** Application type mask. */
133#define E32APPMASK UINT32_C(0x00000300)
134/** Executable module. */
135#define E32MODEXE UINT32_C(0x00000000)
136/** Dynamic link library (DLL / library) module. */
137#define E32MODDLL UINT32_C(0x00008000)
138/** Protected memory DLL. */
139#define E32PROTDLL UINT32_C(0x00010000)
140/** Physical Device Driver. */
141#define E32MODPDEV UINT32_C(0x00020000)
142/** Virtual Device Driver. */
143#define E32MODVDEV UINT32_C(0x00028000)
144/** Device driver */
145#define E32DEVICE E32MODPDEV
146/** Dynamic link library (DLL / library) module. */
147#define E32NOTP E32MODDLL
148/** Protected memory DLL. */
149#define E32MODPROTDLL (E32MODDLL | E32PROTDLL)
150/** Module Type mask. */
151#define E32MODMASK UINT32_C(0x00038000)
152/** Not loadable (linker error). */
153#define E32NOLOAD UINT32_C(0x00002000)
154/** No internal fixups. */
155#define E32NOINTFIX UINT32_C(0x00000010)
156/** No external fixups (i.e. imports). */
157#define E32NOEXTFIX UINT32_C(0x00000020)
158/** System DLL, no internal fixups. */
159#define E32SYSDLL UINT32_C(0x00000008)
160/** Global (set) or per instance (cleared) library initialization. */
161#define E32LIBINIT UINT32_C(0x00000004)
162/** Global (set) or per instance (cleared) library termination. */
163#define E32LIBTERM UINT32_C(0x40000000)
164/** Indicates when set in an executable that the process isn't SMP safe. */
165#define E32NOTMPSAFE UINT32_C(0x00080000)
166/** @} */
167
168/** @name Relocations (aka Fixups).
169 * @{ */
170typedef union _offset
171{
172 uint16_t offset16;
173 uint32_t offset32;
174} offset;
175
176/** A relocation.
177 * @remark this structure isn't very usable since LX relocations comes in too many size variations.
178 */
179struct r32_rlc
180{
181 uint8_t nr_stype;
182 uint8_t nr_flags;
183 int16_t r32_soff;
184 uint16_t r32_objmod;
185
186 union targetid
187 {
188 offset intref;
189 union extfixup
190 {
191 offset proc;
192 uint32_t ord;
193 } extref;
194 struct addfixup
195 {
196 uint16_t entry;
197 offset addval;
198 } addfix;
199 } r32_target;
200 uint16_t r32_srccount;
201 uint16_t r32_chain;
202};
203
204/** @name Some attempt at size constanstants.
205 * @{
206 */
207#define RINTSIZE16 8
208#define RINTSIZE32 10
209#define RORDSIZE 8
210#define RNAMSIZE16 8
211#define RNAMSIZE32 10
212#define RADDSIZE16 10
213#define RADDSIZE32 12
214/** @} */
215
216/** @name nr_stype (source flags)
217 * @{ */
218#define NRSBYT 0x00
219#define NRSSEG 0x02
220#define NRSPTR 0x03
221#define NRSOFF 0x05
222#define NRPTR48 0x06
223#define NROFF32 0x07
224#define NRSOFF32 0x08
225#define NRSTYP 0x0f
226#define NRSRCMASK 0x0f
227#define NRALIAS 0x10
228#define NRCHAIN 0x20
229/** @} */
230
231/** @name nr_flags (target flags)
232 * @{ */
233#define NRRINT 0x00
234#define NRRORD 0x01
235#define NRRNAM 0x02
236#define NRRENT 0x03
237#define NRRTYP 0x03
238#define NRADD 0x04
239#define NRICHAIN 0x08
240#define NR32BITOFF 0x10
241#define NR32BITADD 0x20
242#define NR16OBJMOD 0x40
243#define NR8BITORD 0x80
244/** @} */
245
246/** @} */
247
248
249/** @name The Object Table (aka segment table)
250 * @{ */
251
252/** The Object Table Entry. */
253struct o32_obj
254{
255 /** The size of the object. */
256 uint32_t o32_size;
257 /** The base address of the object. */
258 uint32_t o32_base;
259 /** Object flags. */
260 uint32_t o32_flags;
261 /** Page map index. */
262 uint32_t o32_pagemap;
263 /** Page map size. (doesn't need to be o32_size >> page shift). */
264 uint32_t o32_mapsize;
265 /** Reserved */
266 uint32_t o32_reserved;
267};
268
269/** @name o32_flags
270 * @{ */
271/** Read access. */
272#define OBJREAD UINT32_C(0x00000001)
273/** Write access. */
274#define OBJWRITE UINT32_C(0x00000002)
275/** Execute access. */
276#define OBJEXEC UINT32_C(0x00000004)
277/** Resource object. */
278#define OBJRSRC UINT32_C(0x00000008)
279/** The object is discarable (i.e. don't swap, just load in pages from the executable).
280 * This overlaps a bit with object type. */
281#define OBJDISCARD UINT32_C(0x00000010)
282/** The object is shared. */
283#define OBJSHARED UINT32_C(0x00000020)
284/** The object has preload pages. */
285#define OBJPRELOAD UINT32_C(0x00000040)
286/** The object has invalid pages. */
287#define OBJINVALID UINT32_C(0x00000080)
288/** Non-permanent, link386 bug. */
289#define LNKNONPERM UINT32_C(0x00000600)
290/** Non-permanent, correct 'value'. */
291#define OBJNONPERM UINT32_C(0x00000000)
292/** Obj Type: The object is permanent and swappable. */
293#define OBJPERM UINT32_C(0x00000100)
294/** Obj Type: The object is permanent and resident (i.e. not swappable). */
295#define OBJRESIDENT UINT32_C(0x00000200)
296/** Obj Type: The object is resident and contigious. */
297#define OBJCONTIG UINT32_C(0x00000300)
298/** Obj Type: The object is permanent and long locable. */
299#define OBJDYNAMIC UINT32_C(0x00000400)
300/** Object type mask. */
301#define OBJTYPEMASK UINT32_C(0x00000700)
302/** x86: The object require an 16:16 alias. */
303#define OBJALIAS16 UINT32_C(0x00001000)
304/** x86: Big/Default selector setting, i.e. toggle 32-bit or 16-bit. */
305#define OBJBIGDEF UINT32_C(0x00002000)
306/** x86: conforming selector setting (weird stuff). */
307#define OBJCONFORM UINT32_C(0x00004000)
308/** x86: IOPL. */
309#define OBJIOPL UINT32_C(0x00008000)
310/** @} */
311
312/** A Object Page Map Entry. */
313struct o32_map
314{
315 /** The file offset of the page. */
316 uint32_t o32_pagedataoffset;
317 /** The number of bytes of raw page data. */
318 uint16_t o32_pagesize;
319 /** Per page flags describing how the page is encoded in the file. */
320 uint16_t o32_pageflags;
321};
322
323/** @name o32 o32_pageflags
324 * @{
325 */
326/** Raw page (uncompressed) in the file. */
327#define VALID UINT16_C(0x0000)
328/** RLE encoded page in file. */
329#define ITERDATA UINT16_C(0x0001)
330/** Invalid page, nothing in the file. */
331#define INVALID UINT16_C(0x0002)
332/** Zero page, nothing in file. */
333#define ZEROED UINT16_C(0x0003)
334/** range of pages (what is this?) */
335#define RANGE UINT16_C(0x0004)
336/** Compressed page in file. */
337#define ITERDATA2 UINT16_C(0x0005)
338/** @} */
339
340
341/** Iteration Record format (RLE compressed page). */
342struct LX_Iter
343{
344 /** Number of iterations. */
345 uint16_t LX_nIter;
346 /** The number of bytes that's being iterated. */
347 uint16_t LX_nBytes;
348 /** The bytes. */
349 uint8_t LX_Iterdata;
350};
351
352/** @} */
353
354
355/** A Resource Table Entry */
356struct rsrc32
357{
358 /** Resource Type. */
359 uint16_t type;
360 /** Resource ID. */
361 uint16_t name;
362 /** Resource size in bytes. */
363 uint32_t cb;
364 /** The index of the object containing the resource. */
365 uint16_t obj;
366 /** Offset of the resource that within the object. */
367 uint32_t offset;
368};
369
370
371/** @name The Entry Table (aka Export Table)
372 * @{ */
373
374/** Entry bundle.
375 * Header descripting up to 255 entries that follows immediatly after this structure. */
376struct b32_bundle
377{
378 /** The number of entries. */
379 uint8_t b32_cnt;
380 /** The type of bundle. */
381 uint8_t b32_type;
382 /** The index of the object containing these entry points. */
383 uint16_t b32_obj;
384};
385
386/** @name b32_type
387 * @{ */
388/** Empty bundle, filling up unused ranges of ordinals. */
389#define EMPTY 0x00
390/** 16-bit offset entry point. */
391#define ENTRY16 0x01
392/** 16-bit callgate entry point. */
393#define GATE16 0x02
394/** 32-bit offset entry point. */
395#define ENTRY32 0x03
396/** Forwarder entry point. */
397#define ENTRYFWD 0x04
398/** Typing information present indicator. */
399#define TYPEINFO 0x80
400/** @} */
401
402
403/** Entry point. */
404struct e32_entry
405{
406 /** Entry point flags */
407 uint8_t e32_flags; /* Entry point flags */
408 union entrykind
409 {
410 /** ENTRY16 or ENTRY32. */
411 offset e32_offset;
412 /** GATE16 */
413 struct callgate
414 {
415 /** Offset into segment. */
416 uint16_t offset;
417 /** The callgate selector */
418 uint16_t callgate;
419 } e32_callgate;
420 /** ENTRYFWD */
421 struct fwd
422 {
423 /** Module ordinal number (i.e. into the import module table). */
424 uint16_t modord;
425 /** Procedure name or ordinal number. */
426 uint32_t value;
427 } e32_fwd;
428 } e32_variant;
429};
430
431/** @name e32_flags
432 * @{ */
433/** Exported entry (set) or private entry (clear). */
434#define E32EXPORT 0x01
435/** Uses shared data. */
436#define E32SHARED 0x02
437/** Parameter word count mask. */
438#define E32PARAMS 0xf8
439/** ENTRYFWD: Imported by ordinal (set) or by name (clear). */
440#define FWD_ORDINAL 0x01
441/** @} */
442
443/** @name dunno
444 * @{ */
445#define FIXENT16 3
446#define FIXENT32 5
447#define GATEENT16 5
448#define FWDENT 7
449/** @} */
450
451#pragma pack()
452
453#endif
454
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