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[/] [openrisc/] [trunk/] [gnu-stable/] [binutils-2.20.1/] [include/] [aout/] [aout64.h] - Blame information for rev 818

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1 205 julius
/* `a.out' object-file definitions, including extensions to 64-bit fields
2
 
3
   Copyright 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
4
 
5
   This program is free software; you can redistribute it and/or modify
6
   it under the terms of the GNU General Public License as published by
7
   the Free Software Foundation; either version 2 of the License, or
8
   (at your option) any later version.
9
 
10
   This program is distributed in the hope that it will be useful,
11
   but WITHOUT ANY WARRANTY; without even the implied warranty of
12
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
   GNU General Public License for more details.
14
 
15
   You should have received a copy of the GNU General Public License
16
   along with this program; if not, write to the Free Software
17
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
18
 
19
#ifndef __A_OUT_64_H__
20
#define __A_OUT_64_H__
21
 
22
#ifndef BYTES_IN_WORD
23
#define BYTES_IN_WORD 4
24
#endif
25
 
26
/* This is the layout on disk of the 32-bit or 64-bit exec header.  */
27
 
28
#ifndef external_exec
29
struct external_exec
30
{
31
  bfd_byte e_info[4];               /* Magic number and stuff.  */
32
  bfd_byte e_text[BYTES_IN_WORD];   /* Length of text section in bytes.  */
33
  bfd_byte e_data[BYTES_IN_WORD];   /* Length of data section in bytes.  */
34
  bfd_byte e_bss[BYTES_IN_WORD];    /* Length of bss area in bytes.  */
35
  bfd_byte e_syms[BYTES_IN_WORD];   /* Length of symbol table in bytes.  */
36
  bfd_byte e_entry[BYTES_IN_WORD];  /* Start address.  */
37
  bfd_byte e_trsize[BYTES_IN_WORD]; /* Length of text relocation info.  */
38
  bfd_byte e_drsize[BYTES_IN_WORD]; /* Length of data relocation info.  */
39
};
40
 
41
#define EXEC_BYTES_SIZE (4 + BYTES_IN_WORD * 7)
42
 
43
/* Magic numbers for a.out files.  */
44
 
45
#if ARCH_SIZE==64
46
#define OMAGIC 0x1001           /* Code indicating object file.  */
47
#define ZMAGIC 0x1002           /* Code indicating demand-paged executable.  */
48
#define NMAGIC 0x1003           /* Code indicating pure executable.  */
49
 
50
/* There is no 64-bit QMAGIC as far as I know.  */
51
 
52
#define N_BADMAG(x)       (N_MAGIC(x) != OMAGIC         \
53
                        && N_MAGIC(x) != NMAGIC         \
54
                        && N_MAGIC(x) != ZMAGIC)
55
#else
56
#define OMAGIC 0407             /* Object file or impure executable.  */
57
#define NMAGIC 0410             /* Code indicating pure executable.  */
58
#define ZMAGIC 0413             /* Code indicating demand-paged executable.  */
59
#define BMAGIC 0415             /* Used by a b.out object.  */
60
 
61
/* This indicates a demand-paged executable with the header in the text.
62
   It is used by 386BSD (and variants) and Linux, at least.  */
63
#ifndef QMAGIC
64
#define QMAGIC 0314
65
#endif
66
# ifndef N_BADMAG
67
#  define N_BADMAG(x)     (N_MAGIC(x) != OMAGIC         \
68
                        && N_MAGIC(x) != NMAGIC         \
69
                        && N_MAGIC(x) != ZMAGIC \
70
                        && N_MAGIC(x) != QMAGIC)
71
# endif /* N_BADMAG */
72
#endif
73
 
74
#endif
75
 
76
#ifdef QMAGIC
77
#define N_IS_QMAGIC(x) (N_MAGIC (x) == QMAGIC)
78
#else
79
#define N_IS_QMAGIC(x) (0)
80
#endif
81
 
82
/* The difference between TARGET_PAGE_SIZE and N_SEGSIZE is that TARGET_PAGE_SIZE is
83
   the finest granularity at which you can page something, thus it
84
   controls the padding (if any) before the text segment of a ZMAGIC
85
   file.  N_SEGSIZE is the resolution at which things can be marked as
86
   read-only versus read/write, so it controls the padding between the
87
   text segment and the data segment (in memory; on disk the padding
88
   between them is TARGET_PAGE_SIZE).  TARGET_PAGE_SIZE and N_SEGSIZE are the same
89
   for most machines, but different for sun3.  */
90
 
91
/* By default, segment size is constant.  But some machines override this
92
   to be a function of the a.out header (e.g. machine type).  */
93
 
94
#ifndef N_SEGSIZE
95
#define N_SEGSIZE(x)    SEGMENT_SIZE
96
#endif
97
 
98
/* Virtual memory address of the text section.
99
   This is getting very complicated.  A good reason to discard a.out format
100
   for something that specifies these fields explicitly.  But til then...
101
 
102
   * OMAGIC and NMAGIC files:
103
       (object files: text for "relocatable addr 0" right after the header)
104
       start at 0, offset is EXEC_BYTES_SIZE, size as stated.
105
   * The text address, offset, and size of ZMAGIC files depend
106
     on the entry point of the file:
107
     * entry point below TEXT_START_ADDR:
108
       (hack for SunOS shared libraries)
109
       start at 0, offset is 0, size as stated.
110
     * If N_HEADER_IN_TEXT(x) is true (which defaults to being the
111
       case when the entry point is EXEC_BYTES_SIZE or further into a page):
112
       no padding is needed; text can start after exec header.  Sun
113
       considers the text segment of such files to include the exec header;
114
       for BFD's purposes, we don't, which makes more work for us.
115
       start at TEXT_START_ADDR + EXEC_BYTES_SIZE, offset is EXEC_BYTES_SIZE,
116
       size as stated minus EXEC_BYTES_SIZE.
117
     * If N_HEADER_IN_TEXT(x) is false (which defaults to being the case when
118
       the entry point is less than EXEC_BYTES_SIZE into a page (e.g. page
119
       aligned)): (padding is needed so that text can start at a page boundary)
120
       start at TEXT_START_ADDR, offset TARGET_PAGE_SIZE, size as stated.
121
 
122
    Specific configurations may want to hardwire N_HEADER_IN_TEXT,
123
    for efficiency or to allow people to play games with the entry point.
124
    In that case, you would #define N_HEADER_IN_TEXT(x) as 1 for sunos,
125
    and as 0 for most other hosts (Sony News, Vax Ultrix, etc).
126
    (Do this in the appropriate bfd target file.)
127
    (The default is a heuristic that will break if people try changing
128
    the entry point, perhaps with the ld -e flag.)
129
 
130
    * QMAGIC is always like a ZMAGIC for which N_HEADER_IN_TEXT is true,
131
    and for which the starting address is TARGET_PAGE_SIZE (or should this be
132
    SEGMENT_SIZE?) (TEXT_START_ADDR only applies to ZMAGIC, not to QMAGIC).  */
133
 
134
/* This macro is only relevant for ZMAGIC files; QMAGIC always has the header
135
   in the text.  */
136
#ifndef N_HEADER_IN_TEXT
137
#define N_HEADER_IN_TEXT(x) \
138
  (((x).a_entry & (TARGET_PAGE_SIZE-1)) >= EXEC_BYTES_SIZE)
139
#endif
140
 
141
/* Sun shared libraries, not linux.  This macro is only relevant for ZMAGIC
142
   files.  */
143
#ifndef N_SHARED_LIB
144
#if defined (TEXT_START_ADDR) && TEXT_START_ADDR == 0
145
#define N_SHARED_LIB(x) (0)
146
#else
147
#define N_SHARED_LIB(x) ((x).a_entry < TEXT_START_ADDR)
148
#endif
149
#endif
150
 
151
/* Returning 0 not TEXT_START_ADDR for OMAGIC and NMAGIC is based on
152
   the assumption that we are dealing with a .o file, not an
153
   executable.  This is necessary for OMAGIC (but means we don't work
154
   right on the output from ld -N); more questionable for NMAGIC.  */
155
 
156
#ifndef N_TXTADDR
157
#define N_TXTADDR(x) \
158
    (/* The address of a QMAGIC file is always one page in,             \
159
        with the header in the text.  */                                \
160
     N_IS_QMAGIC (x)                                                    \
161
     ? (bfd_vma) TARGET_PAGE_SIZE + EXEC_BYTES_SIZE                     \
162
     : (N_MAGIC (x) != ZMAGIC                                           \
163
        ? (bfd_vma) 0    /* Object file or NMAGIC.  */                   \
164
        : (N_SHARED_LIB (x)                                             \
165
           ? (bfd_vma) 0                                         \
166
           : (N_HEADER_IN_TEXT (x)                                      \
167
              ? (bfd_vma) TEXT_START_ADDR + EXEC_BYTES_SIZE             \
168
              : (bfd_vma) TEXT_START_ADDR))))
169
#endif
170
 
171
/* If N_HEADER_IN_TEXT is not true for ZMAGIC, there is some padding
172
   to make the text segment start at a certain boundary.  For most
173
   systems, this boundary is TARGET_PAGE_SIZE.  But for Linux, in the
174
   time-honored tradition of crazy ZMAGIC hacks, it is 1024 which is
175
   not what TARGET_PAGE_SIZE needs to be for QMAGIC.  */
176
 
177
#ifndef ZMAGIC_DISK_BLOCK_SIZE
178
#define ZMAGIC_DISK_BLOCK_SIZE TARGET_PAGE_SIZE
179
#endif
180
 
181
#define N_DISK_BLOCK_SIZE(x) \
182
  (N_MAGIC(x) == ZMAGIC ? ZMAGIC_DISK_BLOCK_SIZE : TARGET_PAGE_SIZE)
183
 
184
/* Offset in an a.out of the start of the text section. */
185
#ifndef N_TXTOFF
186
#define N_TXTOFF(x)                                                     \
187
    (/* For {O,N,Q}MAGIC, no padding.  */                               \
188
     N_MAGIC (x) != ZMAGIC                                              \
189
     ? EXEC_BYTES_SIZE                                                  \
190
     : (N_SHARED_LIB (x)                                                \
191
        ? 0                                                              \
192
        : (N_HEADER_IN_TEXT (x)                                         \
193
           ? EXEC_BYTES_SIZE            /* No padding.  */              \
194
           : ZMAGIC_DISK_BLOCK_SIZE     /* A page of padding.  */)))
195
#endif
196
/* Size of the text section.  It's always as stated, except that we
197
   offset it to `undo' the adjustment to N_TXTADDR and N_TXTOFF
198
   for ZMAGIC files that nominally include the exec header
199
   as part of the first page of text.  (BFD doesn't consider the
200
   exec header to be part of the text segment.)  */
201
#ifndef N_TXTSIZE
202
#define N_TXTSIZE(x) \
203
  (/* For QMAGIC, we don't consider the header part of the text section.  */\
204
   N_IS_QMAGIC (x)                                                      \
205
   ? (x).a_text - EXEC_BYTES_SIZE                                       \
206
   : ((N_MAGIC (x) != ZMAGIC || N_SHARED_LIB (x))                       \
207
      ? (x).a_text                                                      \
208
      : (N_HEADER_IN_TEXT (x)                                           \
209
         ? (x).a_text - EXEC_BYTES_SIZE /* No padding.  */              \
210
         : (x).a_text                   /* A page of padding.  */ )))
211
#endif
212
/* The address of the data segment in virtual memory.
213
   It is the text segment address, plus text segment size, rounded
214
   up to a N_SEGSIZE boundary for pure or pageable files.  */
215
#ifndef N_DATADDR
216
#define N_DATADDR(x) \
217
  (N_MAGIC (x) == OMAGIC                                                \
218
   ? (N_TXTADDR (x) + N_TXTSIZE (x))                                    \
219
   : (N_SEGSIZE (x) + ((N_TXTADDR (x) + N_TXTSIZE (x) - 1)              \
220
                       & ~ (bfd_vma) (N_SEGSIZE (x) - 1))))
221
#endif
222
/* The address of the BSS segment -- immediately after the data segment.  */
223
 
224
#define N_BSSADDR(x)    (N_DATADDR (x) + (x).a_data)
225
 
226
/* Offsets of the various portions of the file after the text segment.  */
227
 
228
/* For {Q,Z}MAGIC, there is padding to make the data segment start on
229
   a page boundary.  Most of the time the a_text field (and thus
230
   N_TXTSIZE) already contains this padding.  It is possible that for
231
   BSDI and/or 386BSD it sometimes doesn't contain the padding, and
232
   perhaps we should be adding it here.  But this seems kind of
233
   questionable and probably should be BSDI/386BSD-specific if we do
234
   do it.
235
 
236
   For NMAGIC (at least for hp300 BSD, probably others), there is
237
   padding in memory only, not on disk, so we must *not* ever pad here
238
   for NMAGIC.  */
239
 
240
#ifndef N_DATOFF
241
#define N_DATOFF(x)     (N_TXTOFF (x) + N_TXTSIZE (x))
242
#endif
243
#ifndef N_TRELOFF
244
#define N_TRELOFF(x)    (N_DATOFF (x) + (x).a_data)
245
#endif
246
#ifndef N_DRELOFF
247
#define N_DRELOFF(x)    (N_TRELOFF (x) + (x).a_trsize)
248
#endif
249
#ifndef N_SYMOFF
250
#define N_SYMOFF(x)     (N_DRELOFF (x) + (x).a_drsize)
251
#endif
252
#ifndef N_STROFF
253
#define N_STROFF(x)     (N_SYMOFF (x) + (x).a_syms)
254
#endif
255
 
256
/* Symbols */
257
#ifndef external_nlist
258
struct external_nlist
259
{
260
  bfd_byte e_strx[BYTES_IN_WORD];       /* Index into string table of name.  */
261
  bfd_byte e_type[1];                   /* Type of symbol.  */
262
  bfd_byte e_other[1];                  /* Misc info (usually empty).  */
263
  bfd_byte e_desc[2];                   /* Description field.  */
264
  bfd_byte e_value[BYTES_IN_WORD];      /* Value of symbol.  */
265
};
266
#define EXTERNAL_NLIST_SIZE (BYTES_IN_WORD+4+BYTES_IN_WORD)
267
#endif
268
 
269
struct internal_nlist
270
{
271
  unsigned long n_strx;                 /* Index into string table of name.  */
272
  unsigned char n_type;                 /* Type of symbol.  */
273
  unsigned char n_other;                /* Misc info (usually empty).  */
274
  unsigned short n_desc;                /* Description field.  */
275
  bfd_vma n_value;                      /* Value of symbol.  */
276
};
277
 
278
/* The n_type field is the symbol type, containing:  */
279
 
280
#define N_UNDF  0        /* Undefined symbol.  */
281
#define N_ABS   2       /* Absolute symbol -- defined at particular addr.  */
282
#define N_TEXT  4       /* Text sym -- defined at offset in text seg.  */
283
#define N_DATA  6       /* Data sym -- defined at offset in data seg.  */
284
#define N_BSS   8       /* BSS  sym -- defined at offset in zero'd seg.  */
285
#define N_COMM  0x12    /* Common symbol (visible after shared lib dynlink).  */
286
#define N_FN    0x1f    /* File name of .o file.  */
287
#define N_FN_SEQ 0x0C   /* N_FN from Sequent compilers (sigh).  */
288
/* Note: N_EXT can only be usefully OR-ed with N_UNDF, N_ABS, N_TEXT,
289
   N_DATA, or N_BSS.  When the low-order bit of other types is set,
290
   (e.g. N_WARNING versus N_FN), they are two different types.  */
291
#define N_EXT   1       /* External symbol (as opposed to local-to-this-file).  */
292
#define N_TYPE  0x1e
293
#define N_STAB  0xe0    /* If any of these bits are on, it's a debug symbol.  */
294
 
295
#define N_INDR 0x0a
296
 
297
/* The following symbols refer to set elements.
298
   All the N_SET[ATDB] symbols with the same name form one set.
299
   Space is allocated for the set in the text section, and each set
300
   elements value is stored into one word of the space.
301
   The first word of the space is the length of the set (number of elements).
302
 
303
   The address of the set is made into an N_SETV symbol
304
   whose name is the same as the name of the set.
305
   This symbol acts like a N_DATA global symbol
306
   in that it can satisfy undefined external references.  */
307
 
308
/* These appear as input to LD, in a .o file.  */
309
#define N_SETA  0x14            /* Absolute set element symbol.  */
310
#define N_SETT  0x16            /* Text set element symbol.  */
311
#define N_SETD  0x18            /* Data set element symbol.  */
312
#define N_SETB  0x1A            /* Bss set element symbol.  */
313
 
314
/* This is output from LD.  */
315
#define N_SETV  0x1C            /* Pointer to set vector in data area.  */
316
 
317
/* Warning symbol. The text gives a warning message, the next symbol
318
   in the table will be undefined. When the symbol is referenced, the
319
   message is printed.  */
320
 
321
#define N_WARNING 0x1e
322
 
323
/* Weak symbols.  These are a GNU extension to the a.out format.  The
324
   semantics are those of ELF weak symbols.  Weak symbols are always
325
   externally visible.  The N_WEAK? values are squeezed into the
326
   available slots.  The value of a N_WEAKU symbol is 0.  The values
327
   of the other types are the definitions.  */
328
#define N_WEAKU 0x0d            /* Weak undefined symbol.  */
329
#define N_WEAKA 0x0e            /* Weak absolute symbol.  */
330
#define N_WEAKT 0x0f            /* Weak text symbol.  */
331
#define N_WEAKD 0x10            /* Weak data symbol.  */
332
#define N_WEAKB 0x11            /* Weak bss symbol.  */
333
 
334
/* Relocations
335
 
336
  There are two types of relocation flavours for a.out systems,
337
  standard and extended. The standard form is used on systems where the
338
  instruction has room for all the bits of an offset to the operand, whilst
339
  the extended form is used when an address operand has to be split over n
340
  instructions. Eg, on the 68k, each move instruction can reference
341
  the target with a displacement of 16 or 32 bits. On the sparc, move
342
  instructions use an offset of 14 bits, so the offset is stored in
343
  the reloc field, and the data in the section is ignored.  */
344
 
345
/* This structure describes a single relocation to be performed.
346
   The text-relocation section of the file is a vector of these structures,
347
   all of which apply to the text section.
348
   Likewise, the data-relocation section applies to the data section.  */
349
 
350
struct reloc_std_external
351
{
352
  bfd_byte r_address[BYTES_IN_WORD];    /* Offset of of data to relocate.  */
353
  bfd_byte r_index[3];                  /* Symbol table index of symbol.  */
354
  bfd_byte r_type[1];                   /* Relocation type.  */
355
};
356
 
357
#define RELOC_STD_BITS_PCREL_BIG        ((unsigned int) 0x80)
358
#define RELOC_STD_BITS_PCREL_LITTLE     ((unsigned int) 0x01)
359
 
360
#define RELOC_STD_BITS_LENGTH_BIG       ((unsigned int) 0x60)
361
#define RELOC_STD_BITS_LENGTH_SH_BIG    5
362
#define RELOC_STD_BITS_LENGTH_LITTLE    ((unsigned int) 0x06)
363
#define RELOC_STD_BITS_LENGTH_SH_LITTLE 1
364
 
365
#define RELOC_STD_BITS_EXTERN_BIG       ((unsigned int) 0x10)
366
#define RELOC_STD_BITS_EXTERN_LITTLE    ((unsigned int) 0x08)
367
 
368
#define RELOC_STD_BITS_BASEREL_BIG      ((unsigned int) 0x08)
369
#define RELOC_STD_BITS_BASEREL_LITTLE   ((unsigned int) 0x10)
370
 
371
#define RELOC_STD_BITS_JMPTABLE_BIG     ((unsigned int) 0x04)
372
#define RELOC_STD_BITS_JMPTABLE_LITTLE  ((unsigned int) 0x20)
373
 
374
#define RELOC_STD_BITS_RELATIVE_BIG     ((unsigned int) 0x02)
375
#define RELOC_STD_BITS_RELATIVE_LITTLE  ((unsigned int) 0x40)
376
 
377
#define RELOC_STD_SIZE  (BYTES_IN_WORD + 3 + 1)         /* Bytes per relocation entry.  */
378
 
379
struct reloc_std_internal
380
{
381
  bfd_vma r_address;            /* Address (within segment) to be relocated.  */
382
  /* The meaning of r_symbolnum depends on r_extern.  */
383
  unsigned int r_symbolnum:24;
384
  /* Nonzero means value is a pc-relative offset
385
     and it should be relocated for changes in its own address
386
     as well as for changes in the symbol or section specified.  */
387
  unsigned int r_pcrel:1;
388
  /* Length (as exponent of 2) of the field to be relocated.
389
     Thus, a value of 2 indicates 1<<2 bytes.  */
390
  unsigned int r_length:2;
391
  /* 1 => relocate with value of symbol.
392
     r_symbolnum is the index of the symbol
393
     in files the symbol table.
394
 
395
     r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS
396
     (the N_EXT bit may be set also, but signifies nothing).  */
397
  unsigned int r_extern:1;
398
  /* The next three bits are for SunOS shared libraries, and seem to
399
     be undocumented.  */
400
  unsigned int r_baserel:1;     /* Linkage table relative.  */
401
  unsigned int r_jmptable:1;    /* pc-relative to jump table.  */
402
  unsigned int r_relative:1;    /* "relative relocation".  */
403
  /* unused */
404
  unsigned int r_pad:1;         /* Padding -- set to zero.  */
405
};
406
 
407
 
408
/* EXTENDED RELOCS.   */
409
 
410
struct reloc_ext_external
411
{
412
  bfd_byte r_address[BYTES_IN_WORD];    /* Offset of of data to relocate.  */
413
  bfd_byte r_index[3];                  /* Symbol table index of symbol.  */
414
  bfd_byte r_type[1];                   /* Relocation type.  */
415
  bfd_byte r_addend[BYTES_IN_WORD];     /* Datum addend.  */
416
};
417
 
418
#ifndef RELOC_EXT_BITS_EXTERN_BIG
419
#define RELOC_EXT_BITS_EXTERN_BIG       ((unsigned int) 0x80)
420
#endif
421
 
422
#ifndef RELOC_EXT_BITS_EXTERN_LITTLE
423
#define RELOC_EXT_BITS_EXTERN_LITTLE    ((unsigned int) 0x01)
424
#endif
425
 
426
#ifndef RELOC_EXT_BITS_TYPE_BIG
427
#define RELOC_EXT_BITS_TYPE_BIG         ((unsigned int) 0x1F)
428
#endif
429
 
430
#ifndef RELOC_EXT_BITS_TYPE_SH_BIG
431
#define RELOC_EXT_BITS_TYPE_SH_BIG      0
432
#endif
433
 
434
#ifndef RELOC_EXT_BITS_TYPE_LITTLE
435
#define RELOC_EXT_BITS_TYPE_LITTLE      ((unsigned int) 0xF8)
436
#endif
437
 
438
#ifndef RELOC_EXT_BITS_TYPE_SH_LITTLE
439
#define RELOC_EXT_BITS_TYPE_SH_LITTLE   3
440
#endif
441
 
442
/* Bytes per relocation entry.  */
443
#define RELOC_EXT_SIZE  (BYTES_IN_WORD + 3 + 1 + BYTES_IN_WORD)
444
 
445
enum reloc_type
446
{
447
  /* Simple relocations.  */
448
  RELOC_8,                      /* data[0:7] = addend + sv              */
449
  RELOC_16,                     /* data[0:15] = addend + sv             */
450
  RELOC_32,                     /* data[0:31] = addend + sv             */
451
  /* PC-rel displacement.  */
452
  RELOC_DISP8,                  /* data[0:7] = addend - pc + sv         */
453
  RELOC_DISP16,                 /* data[0:15] = addend - pc + sv        */
454
  RELOC_DISP32,                 /* data[0:31] = addend - pc + sv        */
455
  /* Special.  */
456
  RELOC_WDISP30,                /* data[0:29] = (addend + sv - pc)>>2   */
457
  RELOC_WDISP22,                /* data[0:21] = (addend + sv - pc)>>2   */
458
  RELOC_HI22,                   /* data[0:21] = (addend + sv)>>10       */
459
  RELOC_22,                     /* data[0:21] = (addend + sv)           */
460
  RELOC_13,                     /* data[0:12] = (addend + sv)           */
461
  RELOC_LO10,                   /* data[0:9] = (addend + sv)            */
462
  RELOC_SFA_BASE,
463
  RELOC_SFA_OFF13,
464
  /* P.I.C. (base-relative).  */
465
  RELOC_BASE10,                 /* Not sure - maybe we can do this the */
466
  RELOC_BASE13,                 /* right way now */
467
  RELOC_BASE22,
468
  /* For some sort of pc-rel P.I.C. (?)  */
469
  RELOC_PC10,
470
  RELOC_PC22,
471
  /* P.I.C. jump table.  */
472
  RELOC_JMP_TBL,
473
  /* Reputedly for shared libraries somehow.  */
474
  RELOC_SEGOFF16,
475
  RELOC_GLOB_DAT,
476
  RELOC_JMP_SLOT,
477
  RELOC_RELATIVE,
478
 
479
  RELOC_11,
480
  RELOC_WDISP2_14,
481
  RELOC_WDISP19,
482
  RELOC_HHI22,                  /* data[0:21] = (addend + sv) >> 42     */
483
  RELOC_HLO10,                  /* data[0:9] = (addend + sv) >> 32      */
484
 
485
  /* 29K relocation types.  */
486
  RELOC_JUMPTARG,
487
  RELOC_CONST,
488
  RELOC_CONSTH,
489
 
490
  /* All the new ones I can think of, for sparc v9.  */
491
  RELOC_64,                     /* data[0:63] = addend + sv             */
492
  RELOC_DISP64,                 /* data[0:63] = addend - pc + sv        */
493
  RELOC_WDISP21,                /* data[0:20] = (addend + sv - pc)>>2   */
494
  RELOC_DISP21,                 /* data[0:20] = addend - pc + sv        */
495
  RELOC_DISP14,                 /* data[0:13] = addend - pc + sv        */
496
  /* Q .
497
     What are the other ones,
498
     Since this is a clean slate, can we throw away the ones we dont
499
     understand ? Should we sort the values ? What about using a
500
     microcode format like the 68k ?  */
501
  NO_RELOC
502
  };
503
 
504
 
505
struct reloc_internal
506
{
507
  bfd_vma r_address;            /* Offset of of data to relocate.  */
508
  long  r_index;                /* Symbol table index of symbol.  */
509
  enum reloc_type r_type;       /* Relocation type.  */
510
  bfd_vma r_addend;             /* Datum addend.  */
511
};
512
 
513
/* Q.
514
   Should the length of the string table be 4 bytes or 8 bytes ?
515
 
516
   Q.
517
   What about archive indexes ?  */
518
 
519
#endif                          /* __A_OUT_64_H__ */

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