aboutsummaryrefslogtreecommitdiff
path: root/include/coff/internal.h
blob: d5ea9510334c4e95b2796d53cce1f0cb2804d2ed (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
/* Internal format of COFF object file data structures, for GNU BFD.
   This file is part of BFD, the Binary File Descriptor library.  */

#ifndef GNU_COFF_INTERNAL_H
#define GNU_COFF_INTERNAL_H 1

/* First, make "signed char" work, even on old compilers. */
#ifndef signed
#ifndef __STDC__
#define	signed			/**/
#endif
#endif

/********************** FILE HEADER **********************/

/* extra stuff in a PE header. */

struct internal_extra_pe_filehdr
{
  /* DOS header data follows for PE stuff */
  unsigned short e_magic;	/* Magic number, 0x5a4d */
  unsigned short e_cblp;	/* Bytes on last page of file, 0x90 */
  unsigned short e_cp;		/* Pages in file, 0x3 */
  unsigned short e_crlc;	/* Relocations, 0x0 */
  unsigned short e_cparhdr;	/* Size of header in paragraphs, 0x4 */
  unsigned short e_minalloc;	/* Minimum extra paragraphs needed, 0x0 */
  unsigned short e_maxalloc;	/* Maximum extra paragraphs needed, 0xFFFF */
  unsigned short e_ss;		/* Initial (relative) SS value, 0x0 */
  unsigned short e_sp;		/* Initial SP value, 0xb8 */
  unsigned short e_csum;	/* Checksum, 0x0 */
  unsigned short e_ip;		/* Initial IP value, 0x0 */
  unsigned short e_cs;		/* Initial (relative) CS value, 0x0 */
  unsigned short e_lfarlc;	/* File address of relocation table, 0x40 */
  unsigned short e_ovno;	/* Overlay number, 0x0 */
  unsigned short e_res[4];	/* Reserved words, all 0x0 */
  unsigned short e_oemid;	/* OEM identifier (for e_oeminfo), 0x0 */
  unsigned short e_oeminfo;	/* OEM information; e_oemid specific, 0x0 */
  unsigned short e_res2[10];	/* Reserved words, all 0x0 */
  bfd_vma  e_lfanew;		/* File address of new exe header, 0x80 */
  unsigned long dos_message[16]; /* text which always follows dos header */
  bfd_vma  nt_signature;   	/* required NT signature, 0x4550 */ 
};

struct internal_filehdr
{
  struct internal_extra_pe_filehdr pe;

  /* standard coff  internal info */
  unsigned short f_magic;	/* magic number			*/
  unsigned short f_nscns;	/* number of sections		*/
  long f_timdat;		/* time & date stamp		*/
  bfd_vma f_symptr;		/* file pointer to symtab	*/
  long f_nsyms;			/* number of symtab entries	*/
  unsigned short f_opthdr;	/* sizeof(optional hdr)		*/
  unsigned short f_flags;	/* flags			*/
  unsigned short f_target_id;	/* (TIc80 specific)		*/
};


/* Bits for f_flags:
 *	F_RELFLG	relocation info stripped from file
 *	F_EXEC		file is executable (no unresolved external references)
 *	F_LNNO		line numbers stripped from file
 *	F_LSYMS		local symbols stripped from file
 *	F_AR16WR	file is 16-bit little-endian
 *	F_AR32WR	file is 32-bit little-endian
 *	F_AR32W		file is 32-bit big-endian
 *	F_DYNLOAD	rs/6000 aix: dynamically loadable w/imports & exports
 *	F_SHROBJ	rs/6000 aix: file is a shared object
 *      F_DLL           PE format DLL
 */

#define	F_RELFLG	(0x0001)
#define	F_EXEC		(0x0002)
#define	F_LNNO		(0x0004)
#define	F_LSYMS		(0x0008)
#define	F_AR16WR	(0x0080)
#define	F_AR32WR	(0x0100)
#define	F_AR32W     	(0x0200)
#define	F_DYNLOAD	(0x1000)
#define	F_SHROBJ	(0x2000)
#define F_DLL           (0x2000)

/* extra structure which is used in the optional header */
typedef struct _IMAGE_DATA_DIRECTORY 
{
  bfd_vma VirtualAddress;
  long    Size;
}  IMAGE_DATA_DIRECTORY;
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES  16

/* default image base for NT */
#define NT_EXE_IMAGE_BASE 0x400000
#define NT_DLL_IMAGE_BASE 0x10000000

/* Extra stuff in a PE aouthdr */

#define PE_DEF_SECTION_ALIGNMENT 0x1000
#define PE_DEF_FILE_ALIGNMENT 0x200

struct internal_extra_pe_aouthdr 
{
  /* PE stuff  */
  bfd_vma ImageBase;		/* address of specific location in memory that
				   file is located, NT default 0x10000 */

  bfd_vma SectionAlignment;	/* section alignment default 0x1000 */
  bfd_vma FileAlignment;	/* file alignment default 0x200 */
  short   MajorOperatingSystemVersion; /* minimum version of the operating */
  short   MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/
  short   MajorImageVersion;	/* user defineable field to store version of */
  short   MinorImageVersion;	/* exe or dll being created, default to 0 */ 
  short   MajorSubsystemVersion; /* minimum subsystem version required to */
  short   MinorSubsystemVersion; /* run exe; default to 3.1 */
  long    Reserved1;		/* seems to be 0 */
  long    SizeOfImage;		/* size of memory to allocate for prog */
  long    SizeOfHeaders;	/* size of PE header and section table */
  long    CheckSum;		/* set to 0 */
  short   Subsystem;	

  /* type of subsystem exe uses for user interface,
     possible values:
     1 - NATIVE   Doesn't require a subsystem
     2 - WINDOWS_GUI runs in Windows GUI subsystem
     3 - WINDOWS_CUI runs in Windows char sub. (console app)
     5 - OS2_CUI runs in OS/2 character subsystem
     7 - POSIX_CUI runs in Posix character subsystem */
  short   DllCharacteristics;	/* flags for DLL init, use 0 */
  bfd_vma SizeOfStackReserve;	/* amount of memory to reserve  */
  bfd_vma SizeOfStackCommit;	/* amount of memory initially committed for 
				   initial thread's stack, default is 0x1000 */
  bfd_vma SizeOfHeapReserve;	/* amount of virtual memory to reserve and */
  bfd_vma SizeOfHeapCommit;	/* commit, don't know what to defaut it to */
  long    LoaderFlags;		/* can probably set to 0 */
  long    NumberOfRvaAndSizes;	/* number of entries in next entry, 16 */
  IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
};

/********************** AOUT "OPTIONAL HEADER" **********************/
struct internal_aouthdr
{
  short magic;			/* type of file				*/
  short vstamp;			/* version stamp			*/
  bfd_vma tsize;		/* text size in bytes, padded to FW bdry*/
  bfd_vma dsize;		/* initialized data "  "		*/
  bfd_vma bsize;		/* uninitialized data "   "		*/
  bfd_vma entry;		/* entry pt.				*/
  bfd_vma text_start;		/* base of text used for this file */
  bfd_vma data_start;		/* base of data used for this file */

  /* i960 stuff */
  unsigned long tagentries;	/* number of tag entries to follow */

  /* RS/6000 stuff */
  unsigned long o_toc;		/* address of TOC			*/
  short o_snentry;		/* section number for entry point */
  short o_sntext;		/* section number for text	*/
  short o_sndata;		/* section number for data	*/
  short o_sntoc;		/* section number for toc	*/
  short o_snloader;		/* section number for loader section */
  short o_snbss;		/* section number for bss	*/
  short o_algntext;		/* max alignment for text	*/
  short o_algndata;		/* max alignment for data	*/
  short o_modtype;		/* Module type field, 1R,RE,RO	*/
  short o_cputype;		/* Encoded CPU type		*/
  unsigned long o_maxstack;	/* max stack size allowed.	*/
  unsigned long o_maxdata;	/* max data size allowed.	*/

  /* ECOFF stuff */
  bfd_vma bss_start;		/* Base of bss section.		*/
  bfd_vma gp_value;		/* GP register value.		*/
  unsigned long gprmask;	/* General registers used.	*/
  unsigned long cprmask[4];	/* Coprocessor registers used.	*/
  unsigned long fprmask;	/* Floating pointer registers used.  */

  /* Apollo stuff */
  long o_inlib;			/* inlib data */
  long o_sri;			/* Static Resource Information */
  long vid[2];			/* Version id */


  struct internal_extra_pe_aouthdr pe;

};

/********************** STORAGE CLASSES **********************/

/* This used to be defined as -1, but now n_sclass is unsigned.  */
#define C_EFCN		0xff	/* physical end of function	*/
#define C_NULL		0
#define C_AUTO		1	/* automatic variable		*/
#define C_EXT		2	/* external symbol		*/
#define C_STAT		3	/* static			*/
#define C_REG		4	/* register variable		*/
#define C_EXTDEF	5	/* external definition		*/
#define C_LABEL		6	/* label			*/
#define C_ULABEL	7	/* undefined label		*/
#define C_MOS		8	/* member of structure		*/
#define C_ARG		9	/* function argument		*/
#define C_STRTAG	10	/* structure tag		*/
#define C_MOU		11	/* member of union		*/
#define C_UNTAG		12	/* union tag			*/
#define C_TPDEF		13	/* type definition		*/
#define C_USTATIC	14	/* undefined static		*/
#define C_ENTAG		15	/* enumeration tag		*/
#define C_MOE		16	/* member of enumeration	*/
#define C_REGPARM	17	/* register parameter		*/
#define C_FIELD		18	/* bit field			*/
#define C_AUTOARG	19	/* auto argument		*/
#define C_LASTENT	20	/* dummy entry (end of block)	*/
#define C_BLOCK		100	/* ".bb" or ".eb"		*/
#define C_FCN		101	/* ".bf" or ".ef"		*/
#define C_EOS		102	/* end of structure		*/
#define C_FILE		103	/* file name			*/
#define C_LINE		104	/* line # reformatted as symbol table entry */
#define C_ALIAS	 	105	/* duplicate tag		*/
#define C_HIDDEN	106	/* ext symbol in dmert public lib */

#define C_WEAKEXT	127	/* weak symbol -- GNU extension */

/* New storage classes for TIc80 */
#define C_UEXT		19	/* Tentative external definition */
#define C_STATLAB	20	/* Static load time label */
#define C_EXTLAB	21	/* External load time label */
#define C_SYSTEM	23	/* System Wide variable */

/* New storage classes for WINDOWS_NT   */
#define C_SECTION       104     /* section name */
#define C_NT_WEAK	105	/* weak external */

 /* New storage classes for 80960 */

/* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
#define C_LEAFPROC	108	/* Leaf procedure, "call" via BAL */

#define C_SCALL		107	/* Procedure reachable via system call */
#define C_LEAFEXT       108	/* External leaf */
#define C_LEAFSTAT      113	/* Static leaf */
#define C_OPTVAR	109	/* Optimized variable		*/
#define C_DEFINE	110	/* Preprocessor #define		*/
#define C_PRAGMA	111	/* Advice to compiler or linker	*/
#define C_SEGMENT	112	/* 80960 segment name		*/

  /* Storage classes for m88k */
#define C_SHADOW        107     /* shadow symbol                */
#define C_VERSION       108     /* coff version symbol          */

 /* New storage classes for RS/6000 */
#define C_HIDEXT        107	/* Un-named external symbol */
#define C_BINCL         108	/* Marks beginning of include file */
#define C_EINCL         109	/* Marks ending of include file */

 /* storage classes for stab symbols for RS/6000 */
#define C_GSYM          (0x80)
#define C_LSYM          (0x81)
#define C_PSYM          (0x82)
#define C_RSYM          (0x83)
#define C_RPSYM         (0x84)
#define C_STSYM         (0x85)
#define C_TCSYM         (0x86)
#define C_BCOMM         (0x87)
#define C_ECOML         (0x88)
#define C_ECOMM         (0x89)
#define C_DECL          (0x8c)
#define C_ENTRY         (0x8d)
#define C_FUN           (0x8e)
#define C_BSTAT         (0x8f)
#define C_ESTAT         (0x90)

/* Storage classes for Thumb symbols */
#define C_THUMBEXT      (128 + C_EXT)		/* 130 */
#define C_THUMBSTAT     (128 + C_STAT)		/* 131 */
#define C_THUMBLABEL    (128 + C_LABEL)		/* 134 */
#define C_THUMBEXTFUNC  (C_THUMBEXT  + 20)	/* 150 */
#define C_THUMBSTATFUNC (C_THUMBSTAT + 20)	/* 151 */

/********************** SECTION HEADER **********************/

#define SCNNMLEN (8)

struct internal_scnhdr
{
  char s_name[SCNNMLEN];	/* section name			*/

  /* Physical address, aliased s_nlib.
     In the pei format, this field is the virtual section size
     (the size of the section after being loaded int memory),
     NOT the physical address.  */
  bfd_vma s_paddr;

  bfd_vma s_vaddr;		/* virtual address		*/
  bfd_vma s_size;		/* section size			*/
  bfd_vma s_scnptr;		/* file ptr to raw data for section */
  bfd_vma s_relptr;		/* file ptr to relocation	*/
  bfd_vma s_lnnoptr;		/* file ptr to line numbers	*/
  unsigned long s_nreloc;	/* number of relocation entries	*/
  unsigned long s_nlnno;	/* number of line number entries*/
  long s_flags;			/* flags			*/
  long s_align;			/* used on I960			*/
};

/*
 * s_flags "type"
 */
#define STYP_REG	 (0x0000)	/* "regular": allocated, relocated, loaded */
#define STYP_DSECT	 (0x0001)	/* "dummy":  relocated only*/
#define STYP_NOLOAD	 (0x0002)	/* "noload": allocated, relocated, not loaded */
#define STYP_GROUP	 (0x0004)	/* "grouped": formed of input sections */
#define STYP_PAD	 (0x0008)	/* "padding": not allocated, not relocated, loaded */
#define STYP_COPY	 (0x0010)	/* "copy": for decision function used by field update;  not allocated, not relocated,
									     loaded; reloc & lineno entries processed normally */
#define STYP_TEXT	 (0x0020)	/* section contains text only */
#define S_SHRSEG	 (0x0020)	/* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
									     will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
									     update all process invocations. */
#define STYP_DATA	 (0x0040)	/* section contains data only */
#define STYP_BSS	 (0x0080)	/* section contains bss only */
#define S_NEWFCN	 (0x0100)	/* In a minimal file or an update file, a new function (as compared with a replaced function) */
#define STYP_INFO	 (0x0200)	/* comment: not allocated not relocated, not loaded */
#define STYP_OVER	 (0x0400)	/* overlay: relocated not allocated or loaded */
#define STYP_LIB	 (0x0800)	/* for .lib: same as INFO */
#define STYP_MERGE	 (0x2000)	/* merge section -- combines with text, data or bss sections only */
#define STYP_REVERSE_PAD (0x4000)	/* section will be padded with no-op instructions wherever padding is necessary and there is a
					
									     word of contiguous bytes
									     beginning on a word boundary. */

#define STYP_LIT	0x8020	/* Literal data (like STYP_TEXT) */



/********************** LINE NUMBERS **********************/

/* 1 line number entry for every "breakpointable" source line in a section.
 * Line numbers are grouped on a per function basis; first entry in a function
 * grouping will have l_lnno = 0 and in place of physical address will be the
 * symbol table index of the function name.
 */

struct internal_lineno
{
  union
  {
    long l_symndx;		/* function name symbol index, iff l_lnno == 0*/
    long l_paddr;		/* (physical) address of line number	*/
  }     l_addr;
  unsigned long l_lnno;		/* line number		*/
};

/********************** SYMBOLS **********************/

#define SYMNMLEN	8	/* # characters in a symbol name	*/
#define FILNMLEN	14	/* # characters in a file name		*/
#define DIMNUM		4	/* # array dimensions in auxiliary entry */

struct internal_syment
{
  union
  {
    char _n_name[SYMNMLEN];	/* old COFF version	*/
    struct
    {
      long _n_zeroes;		/* new == 0		*/
      long _n_offset;		/* offset into string table */
    }      _n_n;
    char *_n_nptr[2];		/* allows for overlaying	*/
  }     _n;
  long n_value;			/* value of symbol		*/
  short n_scnum;		/* section number		*/
  unsigned short n_flags;	/* copy of flags from filhdr	*/
  unsigned short n_type;	/* type and derived type	*/
  unsigned char n_sclass;	/* storage class		*/
  unsigned char n_numaux;	/* number of aux. entries	*/
};

#define n_name		_n._n_name
#define n_zeroes	_n._n_n._n_zeroes
#define n_offset	_n._n_n._n_offset


/* Relocatable symbols have number of the section in which they are defined,
   or one of the following: */

#define N_UNDEF	((short)0)	/* undefined symbol */
#define N_ABS	((short)-1)	/* value of symbol is absolute */
#define N_DEBUG	((short)-2)	/* debugging symbol -- value is meaningless */
#define N_TV	((short)-3)	/* indicates symbol needs preload transfer vector */
#define P_TV	((short)-4)	/* indicates symbol needs postload transfer vector*/

/*
 * Type of a symbol, in low N bits of the word
 */
#define T_NULL		0
#define T_VOID		1	/* function argument (only used by compiler) */
#define T_CHAR		2	/* character		*/
#define T_SHORT		3	/* short integer	*/
#define T_INT		4	/* integer		*/
#define T_LONG		5	/* long integer		*/
#define T_FLOAT		6	/* floating point	*/
#define T_DOUBLE	7	/* double word		*/
#define T_STRUCT	8	/* structure 		*/
#define T_UNION		9	/* union 		*/
#define T_ENUM		10	/* enumeration 		*/
#define T_MOE		11	/* member of enumeration*/
#define T_UCHAR		12	/* unsigned character	*/
#define T_USHORT	13	/* unsigned short	*/
#define T_UINT		14	/* unsigned integer	*/
#define T_ULONG		15	/* unsigned long	*/
#define T_LNGDBL	16	/* long double		*/

/*
 * derived types, in n_type
*/
#define DT_NON		(0)	/* no derived type */
#define DT_PTR		(1)	/* pointer */
#define DT_FCN		(2)	/* function */
#define DT_ARY		(3)	/* array */

#define BTYPE(x)	((x) & N_BTMASK)

#define ISPTR(x) \
  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
#define ISFCN(x) \
  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
#define ISARY(x) \
  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
#define ISTAG(x) \
  ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
#define DECREF(x) \
  ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))

union internal_auxent
{
  struct
  {

    union
    {
      long l;			/* str, un, or enum tag indx */
      struct coff_ptr_struct *p;
    }     x_tagndx;

    union
    {
      struct
      {
	unsigned short x_lnno;	/* declaration line number */
	unsigned short x_size;	/* str/union/array size */
      }      x_lnsz;
      long x_fsize;		/* size of function */
    }     x_misc;

    union
    {
      struct
      {				/* if ISFCN, tag, or .bb */
	long x_lnnoptr;		/* ptr to fcn line # */
	union
	{			/* entry ndx past block end */
	  long l;
	  struct coff_ptr_struct *p;
	}     x_endndx;
      }      x_fcn;

      struct
      {				/* if ISARY, up to 4 dimen. */
	unsigned short x_dimen[DIMNUM];
      }      x_ary;
    }     x_fcnary;

    unsigned short x_tvndx;	/* tv index */
  }      x_sym;

  union
  {
    char x_fname[FILNMLEN];
    struct
    {
      long x_zeroes;
      long x_offset;
    }      x_n;
  }     x_file;

  struct
  {
    long x_scnlen;		/* section length */
    unsigned short x_nreloc;	/* # relocation entries */
    unsigned short x_nlinno;	/* # line numbers */
    unsigned long x_checksum;	/* section COMDAT checksum for PE */
    unsigned short x_associated; /* COMDAT associated section index for PE */
    unsigned char x_comdat;	/* COMDAT selection number for PE */
  }      x_scn;

  struct
  {
    long x_tvfill;		/* tv fill value */
    unsigned short x_tvlen;	/* length of .tv */
    unsigned short x_tvran[2];	/* tv range */
  }      x_tv;			/* info about .tv section (in auxent of symbol .tv)) */

  /******************************************
   * RS/6000-specific auxent - last auxent for every external symbol
   ******************************************/
  struct
  {
    union
      {				/* csect length or enclosing csect */
	long l;
	struct coff_ptr_struct *p;
      } x_scnlen;
    long x_parmhash;		/* parm type hash index */
    unsigned short x_snhash;	/* sect num with parm hash */
    unsigned char x_smtyp;	/* symbol align and type */
    /* 0-4 - Log 2 of alignment */
    /* 5-7 - symbol type */
    unsigned char x_smclas;	/* storage mapping class */
    long x_stab;		/* dbx stab info index */
    unsigned short x_snstab;	/* sect num with dbx stab */
  }      x_csect;		/* csect definition information */

/* x_smtyp values:  */

#define	SMTYP_ALIGN(x)	((x) >> 3)	/* log2 of alignment */
#define	SMTYP_SMTYP(x)	((x) & 0x7)	/* symbol type */
/* Symbol type values:  */
#define	XTY_ER	0		/* External reference */
#define	XTY_SD	1		/* Csect definition */
#define	XTY_LD	2		/* Label definition */
#define XTY_CM	3		/* .BSS */
#define	XTY_EM	4		/* Error message */
#define	XTY_US	5		/* "Reserved for internal use" */

/* x_smclas values:  */

#define	XMC_PR	0		/* Read-only program code */
#define	XMC_RO	1		/* Read-only constant */
#define	XMC_DB	2		/* Read-only debug dictionary table */
#define	XMC_TC	3		/* Read-write general TOC entry */
#define	XMC_UA	4		/* Read-write unclassified */
#define	XMC_RW	5		/* Read-write data */
#define	XMC_GL	6		/* Read-only global linkage */
#define	XMC_XO	7		/* Read-only extended operation */
#define	XMC_SV	8		/* Read-only supervisor call */
#define	XMC_BS	9		/* Read-write BSS */
#define	XMC_DS	10		/* Read-write descriptor csect */
#define	XMC_UC	11		/* Read-write unnamed Fortran common */
#define	XMC_TI	12		/* Read-only traceback index csect */
#define	XMC_TB	13		/* Read-only traceback table csect */
/* 		14	??? */
#define	XMC_TC0	15		/* Read-write TOC anchor */
#define XMC_TD	16		/* Read-write data in TOC */

  /******************************************
   *  I960-specific *2nd* aux. entry formats
   ******************************************/
  struct
  {
    /* This is a very old typo that keeps getting propagated. */
#define x_stdindx x_stindx
    long x_stindx;		/* sys. table entry */
  }      x_sc;			/* system call entry */

  struct
  {
    unsigned long x_balntry;	/* BAL entry point */
  }      x_bal;			/* BAL-callable function */

  struct
  {
    unsigned long x_timestamp;	/* time stamp */
    char x_idstring[20];	/* producer identity string */
  }      x_ident;		/* Producer ident info */

};

/********************** RELOCATION DIRECTIVES **********************/

struct internal_reloc
{
  bfd_vma r_vaddr;		/* Virtual address of reference */
  long r_symndx;		/* Index into symbol table	*/
  unsigned short r_type;	/* Relocation type		*/
  unsigned char r_size;		/* Used by RS/6000 and ECOFF	*/
  unsigned char r_extern;	/* Used by ECOFF		*/
  unsigned long r_offset;	/* Used by Alpha ECOFF, SPARC, others */
};

#define R_RELBYTE	017
#define R_RELWORD	020
#define R_PCRBYTE	022
#define R_PCRWORD	023
#define R_PCRLONG	024

#define	R_DIR16		01
#define R_DIR32		06
#define	R_PCLONG	020
#define R_RELBYTE	017
#define R_RELWORD	020
#define R_IMAGEBASE     07


#define R_PCR16L 128
#define R_PCR26L 129
#define R_VRT16  130
#define R_HVRT16 131
#define R_LVRT16 132
#define R_VRT32  133
#define R_RELLONG	(0x11)	/* Direct 32-bit relocation */
#define R_IPRSHORT	(0x18)
#define R_IPRLONG	(0x1a)
#define R_GETSEG	(0x1d)
#define R_GETPA		(0x1e)
#define R_TAGWORD	(0x1f)
#define R_JUMPTARG	0x20	/* strange 29k 00xx00xx reloc */


/* This reloc identifies mov.b instructions with a 16bit absolute
   address.  The linker tries to turn insns with this reloc into
   an absolute 8-bit address.  */
#define R_MOV16B1    	0x41

/* This reloc identifies mov.b instructions which had a 16bit
   absolute address which have been shortened into a 8-bit
   absolute address.  */
#define R_MOV16B2 	0x42

/* This reloc identifies jmp insns with a 16bit target address;
   the linker tries to turn these insns into bra insns with
   an 8bit pc-relative target.  */
#define R_JMP1     	0x43

/* This reloc identifies a bra with an 8-bit pc-relative
   target that was formerlly a jmp insn with a 16bit target.  */
#define R_JMP2 		0x44

/* ??? */
#define R_RELLONG_NEG  	0x45

/* This reloc identifies jmp insns with a 24bit target address;
   the linker tries to turn these insns into bra insns with
   an 8bit pc-relative target.  */
#define R_JMPL1     	0x46

/* This reloc identifies a bra with an 8-bit pc-relative
   target that was formerlly a jmp insn with a 24bit target.  */
#define R_JMPL2		0x47

/* This reloc identifies mov.b instructions with a 24bit absolute
   address.  The linker tries to turn insns with this reloc into
   an absolute 8-bit address.  */

#define R_MOV24B1    	0x48

/* This reloc identifies mov.b instructions which had a 24bit
   absolute address which have been shortened into a 8-bit
   absolute address.  */
#define R_MOV24B2 	0x49

/* An h8300 memory indirect jump/call.  Forces the address of the jump/call
   target into the function vector (in page zero), and the address of the
   vector entry to be placed in the jump/call instruction.  */
#define R_MEM_INDIRECT	0x4a

/* This reloc identifies a 16bit pc-relative branch target which was
   shortened into an 8bit pc-relative branch target.  */
#define R_PCRWORD_B	0x4b

/* This reloc identifies mov.[wl] instructions with a 32/24 bit
   absolute address; the linker may turn this into a mov.[wl]
   insn with a 16bit absolute address.  */
#define R_MOVL1    	0x4c

/* This reloc identifies mov.[wl] insns which formerlly had
   a 32/24bit absolute address and how have a 16bit absolute address.  */
#define R_MOVL2 	0x4d

/* This reloc identifies a bCC:8 which will have it's condition
   inverted and its target redirected to the target of the branch
   in the following insn.  */
#define R_BCC_INV	0x4e

/* This reloc identifies a jmp instruction that has been deleted.  */
#define R_JMP_DEL	0x4f

/* Z8k modes */
#define R_IMM16   0x01		/* 16 bit abs */
#define R_JR	  0x02		/* jr  8 bit disp */
#define R_IMM4L   0x23		/* low nibble */
#define R_IMM8    0x22		/* 8 bit abs */
#define R_IMM32   R_RELLONG	/* 32 bit abs */
#define R_CALL    R_DA		/* Absolute address which could be a callr */
#define R_JP	  R_DA		/* Absolute address which could be a jp */
#define R_REL16   0x04		/* 16 bit PC rel */
#define R_CALLR	  0x05		/* callr 12 bit disp */
#define R_SEG     0x10		/* set if in segmented mode */
#define R_IMM4H   0x24		/* high nibble */
#define R_DISP7   0x25          /* djnz displacement */

/* H8500 modes */

#define R_H8500_IMM8  	1		/*  8 bit immediate 	*/
#define R_H8500_IMM16 	2		/* 16 bit immediate	*/
#define R_H8500_PCREL8 	3		/*  8 bit pcrel 	*/
#define R_H8500_PCREL16 4		/* 16 bit pcrel 	*/
#define R_H8500_HIGH8  	5		/* high 8 bits of 24 bit address */
#define R_H8500_LOW16 	7		/* low 16 bits of 24 bit immediate */
#define R_H8500_IMM24	6		/* 24 bit immediate */
#define R_H8500_IMM32   8               /* 32 bit immediate */
#define R_H8500_HIGH16  9		/* high 16 bits of 32 bit immediate */

/* W65 modes */

#define R_W65_ABS8	1  /* addr & 0xff 		*/
#define R_W65_ABS16	2  /* addr & 0xffff 		*/
#define R_W65_ABS24	3  /* addr & 0xffffff 		*/

#define R_W65_ABS8S8    4  /* (addr >> 8) & 0xff 	*/
#define R_W65_ABS8S16   5  /* (addr >> 16) & 0xff 	*/

#define R_W65_ABS16S8   6  /* (addr >> 8) & 0ffff 	*/
#define R_W65_ABS16S16  7  /* (addr >> 16) & 0ffff 	*/

#define R_W65_PCR8	8
#define R_W65_PCR16	9

#define R_W65_DP       10  /* direct page 8 bits only   */

#endif /* GNU_COFF_INTERNAL_H */