xref: /freebsd/stand/efi/include/amd64/pe.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*
2     PE32+ header file
3  */
4 #ifndef _PE_H
5 #define _PE_H
6 
7 #define IMAGE_DOS_SIGNATURE                 0x5A4D      // MZ
8 #define IMAGE_OS2_SIGNATURE                 0x454E      // NE
9 #define IMAGE_OS2_SIGNATURE_LE              0x454C      // LE
10 #define IMAGE_NT_SIGNATURE                  0x00004550  // PE00
11 #define IMAGE_EDOS_SIGNATURE                0x44454550  // PEED
12 
13 
14 typedef struct _IMAGE_DOS_HEADER {      // DOS .EXE header
15     UINT16   e_magic;                     // Magic number
16     UINT16   e_cblp;                      // Bytes on last page of file
17     UINT16   e_cp;                        // Pages in file
18     UINT16   e_crlc;                      // Relocations
19     UINT16   e_cparhdr;                   // Size of header in paragraphs
20     UINT16   e_minalloc;                  // Minimum extra paragraphs needed
21     UINT16   e_maxalloc;                  // Maximum extra paragraphs needed
22     UINT16   e_ss;                        // Initial (relative) SS value
23     UINT16   e_sp;                        // Initial SP value
24     UINT16   e_csum;                      // Checksum
25     UINT16   e_ip;                        // Initial IP value
26     UINT16   e_cs;                        // Initial (relative) CS value
27     UINT16   e_lfarlc;                    // File address of relocation table
28     UINT16   e_ovno;                      // Overlay number
29     UINT16   e_res[4];                    // Reserved words
30     UINT16   e_oemid;                     // OEM identifier (for e_oeminfo)
31     UINT16   e_oeminfo;                   // OEM information; e_oemid specific
32     UINT16   e_res2[10];                  // Reserved words
33     UINT32   e_lfanew;                    // File address of new exe header
34   } IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER;
35 
36 typedef struct _IMAGE_OS2_HEADER {      // OS/2 .EXE header
37     UINT16   ne_magic;                    // Magic number
38     UINT8    ne_ver;                      // Version number
39     UINT8    ne_rev;                      // Revision number
40     UINT16   ne_enttab;                   // Offset of Entry Table
41     UINT16   ne_cbenttab;                 // Number of bytes in Entry Table
42     UINT32   ne_crc;                      // Checksum of whole file
43     UINT16   ne_flags;                    // Flag UINT16
44     UINT16   ne_autodata;                 // Automatic data segment number
45     UINT16   ne_heap;                     // Initial heap allocation
46     UINT16   ne_stack;                    // Initial stack allocation
47     UINT32   ne_csip;                     // Initial CS:IP setting
48     UINT32   ne_sssp;                     // Initial SS:SP setting
49     UINT16   ne_cseg;                     // Count of file segments
50     UINT16   ne_cmod;                     // Entries in Module Reference Table
51     UINT16   ne_cbnrestab;                // Size of non-resident name table
52     UINT16   ne_segtab;                   // Offset of Segment Table
53     UINT16   ne_rsrctab;                  // Offset of Resource Table
54     UINT16   ne_restab;                   // Offset of resident name table
55     UINT16   ne_modtab;                   // Offset of Module Reference Table
56     UINT16   ne_imptab;                   // Offset of Imported Names Table
57     UINT32   ne_nrestab;                  // Offset of Non-resident Names Table
58     UINT16   ne_cmovent;                  // Count of movable entries
59     UINT16   ne_align;                    // Segment alignment shift count
60     UINT16   ne_cres;                     // Count of resource segments
61     UINT8    ne_exetyp;                   // Target Operating system
62     UINT8    ne_flagsothers;              // Other .EXE flags
63     UINT16   ne_pretthunks;               // offset to return thunks
64     UINT16   ne_psegrefbytes;             // offset to segment ref. bytes
65     UINT16   ne_swaparea;                 // Minimum code swap area size
66     UINT16   ne_expver;                   // Expected Windows version number
67   } IMAGE_OS2_HEADER, *PIMAGE_OS2_HEADER;
68 
69 //
70 // File header format.
71 //
72 
73 typedef struct _IMAGE_FILE_HEADER {
74     UINT16   Machine;
75     UINT16   NumberOfSections;
76     UINT32   TimeDateStamp;
77     UINT32   PointerToSymbolTable;
78     UINT32   NumberOfSymbols;
79     UINT16   SizeOfOptionalHeader;
80     UINT16   Characteristics;
81 } IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER;
82 
83 #define IMAGE_SIZEOF_FILE_HEADER             20
84 
85 #define IMAGE_FILE_RELOCS_STRIPPED           0x0001  // Relocation info stripped from file.
86 #define IMAGE_FILE_EXECUTABLE_IMAGE          0x0002  // File is executable  (i.e. no unresolved externel references).
87 #define IMAGE_FILE_LINE_NUMS_STRIPPED        0x0004  // Line nunbers stripped from file.
88 #define IMAGE_FILE_LOCAL_SYMS_STRIPPED       0x0008  // Local symbols stripped from file.
89 #define IMAGE_FILE_BYTES_REVERSED_LO         0x0080  // Bytes of machine word are reversed.
90 #define IMAGE_FILE_32BIT_MACHINE             0x0100  // 32 bit word machine.
91 #define IMAGE_FILE_DEBUG_STRIPPED            0x0200  // Debugging info stripped from file in .DBG file
92 #define IMAGE_FILE_SYSTEM                    0x1000  // System File.
93 #define IMAGE_FILE_DLL                       0x2000  // File is a DLL.
94 #define IMAGE_FILE_BYTES_REVERSED_HI         0x8000  // Bytes of machine word are reversed.
95 
96 #define IMAGE_FILE_MACHINE_UNKNOWN           0
97 #define IMAGE_FILE_MACHINE_I386              0x14c   // Intel 386.
98 #define IMAGE_FILE_MACHINE_R3000             0x162   // MIPS little-endian, 0540 big-endian
99 #define IMAGE_FILE_MACHINE_R4000             0x166   // MIPS little-endian
100 #define IMAGE_FILE_MACHINE_ALPHA             0x184   // Alpha_AXP
101 #define IMAGE_FILE_MACHINE_POWERPC           0x1F0   // IBM PowerPC Little-Endian
102 #define IMAGE_FILE_MACHINE_TAHOE             0x7cc   // Intel EM machine
103 //
104 // Directory format.
105 //
106 
107 typedef struct _IMAGE_DATA_DIRECTORY {
108     UINT32   VirtualAddress;
109     UINT32   Size;
110 } IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY;
111 
112 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES    16
113 
114 //
115 // Optional header format.
116 //
117 
118 typedef struct _IMAGE_OPTIONAL_HEADER {
119     //
120     // Standard fields.
121     //
122 
123     UINT16    Magic;
124     UINT8     MajorLinkerVersion;
125     UINT8     MinorLinkerVersion;
126     UINT32    SizeOfCode;
127     UINT32    SizeOfInitializedData;
128     UINT32    SizeOfUninitializedData;
129     UINT32    AddressOfEntryPoint;
130     UINT32    BaseOfCode;
131     UINT32    BaseOfData;
132 
133     //
134     // NT additional fields.
135     //
136 
137     UINT32   ImageBase;
138     UINT32   SectionAlignment;
139     UINT32   FileAlignment;
140     UINT16   MajorOperatingSystemVersion;
141     UINT16   MinorOperatingSystemVersion;
142     UINT16   MajorImageVersion;
143     UINT16   MinorImageVersion;
144     UINT16   MajorSubsystemVersion;
145     UINT16   MinorSubsystemVersion;
146     UINT32   Reserved1;
147     UINT32   SizeOfImage;
148     UINT32   SizeOfHeaders;
149     UINT32   CheckSum;
150     UINT16   Subsystem;
151     UINT16   DllCharacteristics;
152     UINT32   SizeOfStackReserve;
153     UINT32   SizeOfStackCommit;
154     UINT32   SizeOfHeapReserve;
155     UINT32   SizeOfHeapCommit;
156     UINT32   LoaderFlags;
157     UINT32   NumberOfRvaAndSizes;
158     IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
159 } IMAGE_OPTIONAL_HEADER, *PIMAGE_OPTIONAL_HEADER;
160 
161 typedef struct _IMAGE_ROM_OPTIONAL_HEADER {
162     UINT16  Magic;
163     UINT8   MajorLinkerVersion;
164     UINT8   MinorLinkerVersion;
165     UINT32  SizeOfCode;
166     UINT32  SizeOfInitializedData;
167     UINT32  SizeOfUninitializedData;
168     UINT32  AddressOfEntryPoint;
169     UINT32  BaseOfCode;
170     UINT32  BaseOfData;
171     UINT32  BaseOfBss;
172     UINT32  GprMask;
173     UINT32  CprMask[4];
174     UINT32  GpValue;
175 } IMAGE_ROM_OPTIONAL_HEADER, *PIMAGE_ROM_OPTIONAL_HEADER;
176 
177 #define IMAGE_SIZEOF_ROM_OPTIONAL_HEADER      56
178 #define IMAGE_SIZEOF_STD_OPTIONAL_HEADER      28
179 #define IMAGE_SIZEOF_NT_OPTIONAL_HEADER      224
180 
181 #define IMAGE_NT_OPTIONAL_HDR_MAGIC        0x10b
182 #define IMAGE_ROM_OPTIONAL_HDR_MAGIC       0x107
183 
184 typedef struct _IMAGE_NT_HEADERS {
185     UINT32 Signature;
186     IMAGE_FILE_HEADER FileHeader;
187     IMAGE_OPTIONAL_HEADER OptionalHeader;
188 } IMAGE_NT_HEADERS, *PIMAGE_NT_HEADERS;
189 
190 typedef struct _IMAGE_ROM_HEADERS {
191     IMAGE_FILE_HEADER FileHeader;
192     IMAGE_ROM_OPTIONAL_HEADER OptionalHeader;
193 } IMAGE_ROM_HEADERS, *PIMAGE_ROM_HEADERS;
194 
195 #define IMAGE_FIRST_SECTION( ntheader ) ((PIMAGE_SECTION_HEADER)        \
196     ((UINT32)ntheader +                                                  \
197      FIELD_OFFSET( IMAGE_NT_HEADERS, OptionalHeader ) +                 \
198      ((PIMAGE_NT_HEADERS)(ntheader))->FileHeader.SizeOfOptionalHeader   \
199     ))
200 
201 
202 // Subsystem Values
203 
204 #define IMAGE_SUBSYSTEM_UNKNOWN              0   // Unknown subsystem.
205 #define IMAGE_SUBSYSTEM_NATIVE               1   // Image doesn't require a subsystem.
206 #define IMAGE_SUBSYSTEM_WINDOWS_GUI          2   // Image runs in the Windows GUI subsystem.
207 #define IMAGE_SUBSYSTEM_WINDOWS_CUI          3   // Image runs in the Windows character subsystem.
208 #define IMAGE_SUBSYSTEM_OS2_CUI              5   // image runs in the OS/2 character subsystem.
209 #define IMAGE_SUBSYSTEM_POSIX_CUI            7   // image run  in the Posix character subsystem.
210 
211 
212 // Directory Entries
213 
214 #define IMAGE_DIRECTORY_ENTRY_EXPORT         0   // Export Directory
215 #define IMAGE_DIRECTORY_ENTRY_IMPORT         1   // Import Directory
216 #define IMAGE_DIRECTORY_ENTRY_RESOURCE       2   // Resource Directory
217 #define IMAGE_DIRECTORY_ENTRY_EXCEPTION      3   // Exception Directory
218 #define IMAGE_DIRECTORY_ENTRY_SECURITY       4   // Security Directory
219 #define IMAGE_DIRECTORY_ENTRY_BASERELOC      5   // Base Relocation Table
220 #define IMAGE_DIRECTORY_ENTRY_DEBUG          6   // Debug Directory
221 #define IMAGE_DIRECTORY_ENTRY_COPYRIGHT      7   // Description String
222 #define IMAGE_DIRECTORY_ENTRY_GLOBALPTR      8   // Machine Value (MIPS GP)
223 #define IMAGE_DIRECTORY_ENTRY_TLS            9   // TLS Directory
224 #define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG   10   // Load Configuration Directory
225 
226 //
227 // Section header format.
228 //
229 
230 #define IMAGE_SIZEOF_SHORT_NAME              8
231 
232 typedef struct _IMAGE_SECTION_HEADER {
233     UINT8   Name[IMAGE_SIZEOF_SHORT_NAME];
234     union {
235             UINT32   PhysicalAddress;
236             UINT32   VirtualSize;
237     } Misc;
238     UINT32   VirtualAddress;
239     UINT32   SizeOfRawData;
240     UINT32   PointerToRawData;
241     UINT32   PointerToRelocations;
242     UINT32   PointerToLinenumbers;
243     UINT16   NumberOfRelocations;
244     UINT16   NumberOfLinenumbers;
245     UINT32   Characteristics;
246 } IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER;
247 
248 #define IMAGE_SIZEOF_SECTION_HEADER          40
249 
250 #define IMAGE_SCN_TYPE_NO_PAD                0x00000008  // Reserved.
251 
252 #define IMAGE_SCN_CNT_CODE                   0x00000020  // Section contains code.
253 #define IMAGE_SCN_CNT_INITIALIZED_DATA       0x00000040  // Section contains initialized data.
254 #define IMAGE_SCN_CNT_UNINITIALIZED_DATA     0x00000080  // Section contains uninitialized data.
255 
256 #define IMAGE_SCN_LNK_OTHER                  0x00000100  // Reserved.
257 #define IMAGE_SCN_LNK_INFO                   0x00000200  // Section contains comments or some other type of information.
258 #define IMAGE_SCN_LNK_REMOVE                 0x00000800  // Section contents will not become part of image.
259 #define IMAGE_SCN_LNK_COMDAT                 0x00001000  // Section contents comdat.
260 
261 #define IMAGE_SCN_ALIGN_1BYTES               0x00100000  //
262 #define IMAGE_SCN_ALIGN_2BYTES               0x00200000  //
263 #define IMAGE_SCN_ALIGN_4BYTES               0x00300000  //
264 #define IMAGE_SCN_ALIGN_8BYTES               0x00400000  //
265 #define IMAGE_SCN_ALIGN_16BYTES              0x00500000  // Default alignment if no others are specified.
266 #define IMAGE_SCN_ALIGN_32BYTES              0x00600000  //
267 #define IMAGE_SCN_ALIGN_64BYTES              0x00700000  //
268 
269 #define IMAGE_SCN_MEM_DISCARDABLE            0x02000000  // Section can be discarded.
270 #define IMAGE_SCN_MEM_NOT_CACHED             0x04000000  // Section is not cachable.
271 #define IMAGE_SCN_MEM_NOT_PAGED              0x08000000  // Section is not pageable.
272 #define IMAGE_SCN_MEM_SHARED                 0x10000000  // Section is shareable.
273 #define IMAGE_SCN_MEM_EXECUTE                0x20000000  // Section is executable.
274 #define IMAGE_SCN_MEM_READ                   0x40000000  // Section is readable.
275 #define IMAGE_SCN_MEM_WRITE                  0x80000000  // Section is writeable.
276 
277 //
278 // Symbol format.
279 //
280 
281 
282 #define IMAGE_SIZEOF_SYMBOL                  18
283 
284 //
285 // Section values.
286 //
287 // Symbols have a section number of the section in which they are
288 // defined. Otherwise, section numbers have the following meanings:
289 //
290 
291 #define IMAGE_SYM_UNDEFINED           (UINT16)0           // Symbol is undefined or is common.
292 #define IMAGE_SYM_ABSOLUTE            (UINT16)-1          // Symbol is an absolute value.
293 #define IMAGE_SYM_DEBUG               (UINT16)-2          // Symbol is a special debug item.
294 
295 //
296 // Type (fundamental) values.
297 //
298 
299 #define IMAGE_SYM_TYPE_NULL                  0           // no type.
300 #define IMAGE_SYM_TYPE_VOID                  1           //
301 #define IMAGE_SYM_TYPE_CHAR                  2           // type character.
302 #define IMAGE_SYM_TYPE_SHORT                 3           // type short integer.
303 #define IMAGE_SYM_TYPE_INT                   4           //
304 #define IMAGE_SYM_TYPE_LONG                  5           //
305 #define IMAGE_SYM_TYPE_FLOAT                 6           //
306 #define IMAGE_SYM_TYPE_DOUBLE                7           //
307 #define IMAGE_SYM_TYPE_STRUCT                8           //
308 #define IMAGE_SYM_TYPE_UNION                 9           //
309 #define IMAGE_SYM_TYPE_ENUM                  10          // enumeration.
310 #define IMAGE_SYM_TYPE_MOE                   11          // member of enumeration.
311 #define IMAGE_SYM_TYPE_BYTE                  12          //
312 #define IMAGE_SYM_TYPE_WORD                  13          //
313 #define IMAGE_SYM_TYPE_UINT                  14          //
314 #define IMAGE_SYM_TYPE_DWORD                 15          //
315 
316 //
317 // Type (derived) values.
318 //
319 
320 #define IMAGE_SYM_DTYPE_NULL                 0           // no derived type.
321 #define IMAGE_SYM_DTYPE_POINTER              1           // pointer.
322 #define IMAGE_SYM_DTYPE_FUNCTION             2           // function.
323 #define IMAGE_SYM_DTYPE_ARRAY                3           // array.
324 
325 //
326 // Storage classes.
327 //
328 
329 #define IMAGE_SYM_CLASS_END_OF_FUNCTION      (BYTE )-1
330 #define IMAGE_SYM_CLASS_NULL                 0
331 #define IMAGE_SYM_CLASS_AUTOMATIC            1
332 #define IMAGE_SYM_CLASS_EXTERNAL             2
333 #define IMAGE_SYM_CLASS_STATIC               3
334 #define IMAGE_SYM_CLASS_REGISTER             4
335 #define IMAGE_SYM_CLASS_EXTERNAL_DEF         5
336 #define IMAGE_SYM_CLASS_LABEL                6
337 #define IMAGE_SYM_CLASS_UNDEFINED_LABEL      7
338 #define IMAGE_SYM_CLASS_MEMBER_OF_STRUCT     8
339 #define IMAGE_SYM_CLASS_ARGUMENT             9
340 #define IMAGE_SYM_CLASS_STRUCT_TAG           10
341 #define IMAGE_SYM_CLASS_MEMBER_OF_UNION      11
342 #define IMAGE_SYM_CLASS_UNION_TAG            12
343 #define IMAGE_SYM_CLASS_TYPE_DEFINITION      13
344 #define IMAGE_SYM_CLASS_UNDEFINED_STATIC     14
345 #define IMAGE_SYM_CLASS_ENUM_TAG             15
346 #define IMAGE_SYM_CLASS_MEMBER_OF_ENUM       16
347 #define IMAGE_SYM_CLASS_REGISTER_PARAM       17
348 #define IMAGE_SYM_CLASS_BIT_FIELD            18
349 #define IMAGE_SYM_CLASS_BLOCK                100
350 #define IMAGE_SYM_CLASS_FUNCTION             101
351 #define IMAGE_SYM_CLASS_END_OF_STRUCT        102
352 #define IMAGE_SYM_CLASS_FILE                 103
353 // new
354 #define IMAGE_SYM_CLASS_SECTION              104
355 #define IMAGE_SYM_CLASS_WEAK_EXTERNAL        105
356 
357 // type packing constants
358 
359 #define N_BTMASK                            017
360 #define N_TMASK                             060
361 #define N_TMASK1                            0300
362 #define N_TMASK2                            0360
363 #define N_BTSHFT                            4
364 #define N_TSHIFT                            2
365 
366 // MACROS
367 
368 //
369 // Communal selection types.
370 //
371 
372 #define IMAGE_COMDAT_SELECT_NODUPLICATES   1
373 #define IMAGE_COMDAT_SELECT_ANY            2
374 #define IMAGE_COMDAT_SELECT_SAME_SIZE      3
375 #define IMAGE_COMDAT_SELECT_EXACT_MATCH    4
376 #define IMAGE_COMDAT_SELECT_ASSOCIATIVE    5
377 
378 #define IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY 1
379 #define IMAGE_WEAK_EXTERN_SEARCH_LIBRARY   2
380 #define IMAGE_WEAK_EXTERN_SEARCH_ALIAS     3
381 
382 
383 //
384 // Relocation format.
385 //
386 
387 typedef struct _IMAGE_RELOCATION {
388     UINT32   VirtualAddress;
389     UINT32   SymbolTableIndex;
390     UINT16    Type;
391 } IMAGE_RELOCATION;
392 
393 #define IMAGE_SIZEOF_RELOCATION              10
394 
395 //
396 // I386 relocation types.
397 //
398 
399 #define IMAGE_REL_I386_ABSOLUTE              0           // Reference is absolute, no relocation is necessary
400 #define IMAGE_REL_I386_DIR16                 01          // Direct 16-bit reference to the symbols virtual address
401 #define IMAGE_REL_I386_REL16                 02          // PC-relative 16-bit reference to the symbols virtual address
402 #define IMAGE_REL_I386_DIR32                 06          // Direct 32-bit reference to the symbols virtual address
403 #define IMAGE_REL_I386_DIR32NB               07          // Direct 32-bit reference to the symbols virtual address, base not included
404 #define IMAGE_REL_I386_SEG12                 011         // Direct 16-bit reference to the segment-selector bits of a 32-bit virtual address
405 #define IMAGE_REL_I386_SECTION               012
406 #define IMAGE_REL_I386_SECREL                013
407 #define IMAGE_REL_I386_REL32                 024         // PC-relative 32-bit reference to the symbols virtual address
408 
409 //
410 // MIPS relocation types.
411 //
412 
413 #define IMAGE_REL_MIPS_ABSOLUTE              0           // Reference is absolute, no relocation is necessary
414 #define IMAGE_REL_MIPS_REFHALF               01
415 #define IMAGE_REL_MIPS_REFWORD               02
416 #define IMAGE_REL_MIPS_JMPADDR               03
417 #define IMAGE_REL_MIPS_REFHI                 04
418 #define IMAGE_REL_MIPS_REFLO                 05
419 #define IMAGE_REL_MIPS_GPREL                 06
420 #define IMAGE_REL_MIPS_LITERAL               07
421 #define IMAGE_REL_MIPS_SECTION               012
422 #define IMAGE_REL_MIPS_SECREL                013
423 #define IMAGE_REL_MIPS_REFWORDNB             042
424 #define IMAGE_REL_MIPS_PAIR                  045
425 
426 //
427 // Alpha Relocation types.
428 //
429 
430 #define IMAGE_REL_ALPHA_ABSOLUTE             0x0
431 #define IMAGE_REL_ALPHA_REFLONG              0x1
432 #define IMAGE_REL_ALPHA_REFQUAD              0x2
433 #define IMAGE_REL_ALPHA_GPREL32              0x3
434 #define IMAGE_REL_ALPHA_LITERAL              0x4
435 #define IMAGE_REL_ALPHA_LITUSE               0x5
436 #define IMAGE_REL_ALPHA_GPDISP               0x6
437 #define IMAGE_REL_ALPHA_BRADDR               0x7
438 #define IMAGE_REL_ALPHA_HINT                 0x8
439 #define IMAGE_REL_ALPHA_INLINE_REFLONG       0x9
440 #define IMAGE_REL_ALPHA_REFHI                0xA
441 #define IMAGE_REL_ALPHA_REFLO                0xB
442 #define IMAGE_REL_ALPHA_PAIR                 0xC
443 #define IMAGE_REL_ALPHA_MATCH                0xD
444 #define IMAGE_REL_ALPHA_SECTION              0xE
445 #define IMAGE_REL_ALPHA_SECREL               0xF
446 #define IMAGE_REL_ALPHA_REFLONGNB            0x10
447 
448 //
449 // IBM PowerPC relocation types.
450 //
451 
452 #define IMAGE_REL_PPC_ABSOLUTE 0x0000  // NOP
453 #define IMAGE_REL_PPC_ADDR64   0x0001  // 64-bit address
454 #define IMAGE_REL_PPC_ADDR32   0x0002  // 32-bit address
455 #define IMAGE_REL_PPC_ADDR24   0x0003  // 26-bit address, shifted left 2 (branch absolute)
456 #define IMAGE_REL_PPC_ADDR16   0x0004  // 16-bit address
457 #define IMAGE_REL_PPC_ADDR14   0x0005  // 16-bit address, shifted left 2 (load doubleword)
458 #define IMAGE_REL_PPC_REL24    0x0006  // 26-bit PC-relative offset, shifted left 2 (branch relative)
459 #define IMAGE_REL_PPC_REL14    0x0007  // 16-bit PC-relative offset, shifted left 2 (br cond relative)
460 #define IMAGE_REL_PPC_TOCREL16 0x0008  // 16-bit offset from TOC base
461 #define IMAGE_REL_PPC_TOCREL14 0x0009  // 16-bit offset from TOC base, shifted left 2 (load doubleword)
462 
463 #define IMAGE_REL_PPC_ADDR32NB 0x000A  // 32-bit addr w/o image base
464 #define IMAGE_REL_PPC_SECREL   0x000B  // va of containing section (as in an image sectionhdr)
465 #define IMAGE_REL_PPC_SECTION  0x000C  // sectionheader number
466 #define IMAGE_REL_PPC_IFGLUE   0x000D  // substitute TOC restore instruction iff symbol is glue code
467 #define IMAGE_REL_PPC_IMGLUE   0x000E  // symbol is glue code; virtual address is TOC restore instruction
468 
469 #define IMAGE_REL_PPC_TYPEMASK 0x00FF  // mask to isolate above values in IMAGE_RELOCATION.Type
470 
471 // Flag bits in IMAGE_RELOCATION.TYPE
472 
473 #define IMAGE_REL_PPC_NEG      0x0100  // subtract reloc value rather than adding it
474 #define IMAGE_REL_PPC_BRTAKEN  0x0200  // fix branch prediction bit to predict branch taken
475 #define IMAGE_REL_PPC_BRNTAKEN 0x0400  // fix branch prediction bit to predict branch not taken
476 #define IMAGE_REL_PPC_TOCDEFN  0x0800  // toc slot defined in file (or, data in toc)
477 
478 //
479 // Based relocation format.
480 //
481 
482 typedef struct _IMAGE_BASE_RELOCATION {
483     UINT32   VirtualAddress;
484     UINT32   SizeOfBlock;
485 //  UINT16    TypeOffset[1];
486 } IMAGE_BASE_RELOCATION, *PIMAGE_BASE_RELOCATION;
487 
488 #define IMAGE_SIZEOF_BASE_RELOCATION         8
489 
490 //
491 // Based relocation types.
492 //
493 
494 #define IMAGE_REL_BASED_ABSOLUTE              0
495 #define IMAGE_REL_BASED_HIGH                  1
496 #define IMAGE_REL_BASED_LOW                   2
497 #define IMAGE_REL_BASED_HIGHLOW               3
498 #define IMAGE_REL_BASED_HIGHADJ               4
499 #define IMAGE_REL_BASED_MIPS_JMPADDR          5
500 #define IMAGE_REL_BASED_DIR64                 10
501 
502 //
503 // Line number format.
504 //
505 
506 typedef struct _IMAGE_LINENUMBER {
507     union {
508         UINT32   SymbolTableIndex;               // Symbol table index of function name if Linenumber is 0.
509         UINT32   VirtualAddress;                 // Virtual address of line number.
510     } Type;
511     UINT16    Linenumber;                         // Line number.
512 } IMAGE_LINENUMBER;
513 
514 #define IMAGE_SIZEOF_LINENUMBER              6
515 
516 //
517 // Archive format.
518 //
519 
520 #define IMAGE_ARCHIVE_START_SIZE             8
521 #define IMAGE_ARCHIVE_START                  "!<arch>\n"
522 #define IMAGE_ARCHIVE_END                    "`\n"
523 #define IMAGE_ARCHIVE_PAD                    "\n"
524 #define IMAGE_ARCHIVE_LINKER_MEMBER          "/               "
525 #define IMAGE_ARCHIVE_LONGNAMES_MEMBER       "//              "
526 
527 typedef struct _IMAGE_ARCHIVE_MEMBER_HEADER {
528     UINT8     Name[16];                          // File member name - `/' terminated.
529     UINT8     Date[12];                          // File member date - decimal.
530     UINT8     UserID[6];                         // File member user id - decimal.
531     UINT8     GroupID[6];                        // File member group id - decimal.
532     UINT8     Mode[8];                           // File member mode - octal.
533     UINT8     Size[10];                          // File member size - decimal.
534     UINT8     EndHeader[2];                      // String to end header.
535 } IMAGE_ARCHIVE_MEMBER_HEADER, *PIMAGE_ARCHIVE_MEMBER_HEADER;
536 
537 #define IMAGE_SIZEOF_ARCHIVE_MEMBER_HDR      60
538 
539 //
540 // DLL support.
541 //
542 
543 //
544 // Export Format
545 //
546 
547 typedef struct _IMAGE_EXPORT_DIRECTORY {
548     UINT32   Characteristics;
549     UINT32   TimeDateStamp;
550     UINT16   MajorVersion;
551     UINT16   MinorVersion;
552     UINT32   Name;
553     UINT32   Base;
554     UINT32   NumberOfFunctions;
555     UINT32   NumberOfNames;
556     UINT32   *AddressOfFunctions;
557     UINT32   *AddressOfNames;
558     UINT32   *AddressOfNameOrdinals;
559 } IMAGE_EXPORT_DIRECTORY, *PIMAGE_EXPORT_DIRECTORY;
560 
561 //
562 // Import Format
563 //
564 
565 typedef struct _IMAGE_IMPORT_BY_NAME {
566     UINT16    Hint;
567     UINT8     Name[1];
568 } IMAGE_IMPORT_BY_NAME, *PIMAGE_IMPORT_BY_NAME;
569 
570 typedef struct _IMAGE_THUNK_DATA {
571     union {
572         UINT32 Function;
573         UINT32 Ordinal;
574         PIMAGE_IMPORT_BY_NAME AddressOfData;
575     } u1;
576 } IMAGE_THUNK_DATA, *PIMAGE_THUNK_DATA;
577 
578 #define IMAGE_ORDINAL_FLAG 0x80000000
579 #define IMAGE_SNAP_BY_ORDINAL(Ordinal) ((Ordinal & IMAGE_ORDINAL_FLAG) != 0)
580 #define IMAGE_ORDINAL(Ordinal) (Ordinal & 0xffff)
581 
582 typedef struct _IMAGE_IMPORT_DESCRIPTOR {
583     UINT32   Characteristics;
584     UINT32   TimeDateStamp;
585     UINT32   ForwarderChain;
586     UINT32   Name;
587     PIMAGE_THUNK_DATA FirstThunk;
588 } IMAGE_IMPORT_DESCRIPTOR, *PIMAGE_IMPORT_DESCRIPTOR;
589 
590 #endif
591