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x86: refine when to trigger optimizations
[deliverable/binutils-gdb.git] / bfd / som.c
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252b5132 1/* bfd back-end for HP PA-RISC SOM objects.
b3adc24a 2 Copyright (C) 1990-2020 Free Software Foundation, Inc.
252b5132
RH		 3
4 Contributed by the Center for Software Science at the
8681fbcd 5 University of Utah.
252b5132
RH		 6
7 This file is part of BFD, the Binary File Descriptor library.
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
cd123cb7 11 the Free Software Foundation; either version 3 of the License, or
252b5132
RH		 12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
3e110533 21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
53e09e0a 22 02110-1301, USA. */
252b5132 23
252b5132 24#include "sysdep.h"
df7b86aa 25#include "alloca-conf.h"
3db64b00 26#include "bfd.h"
e1fa0163 27#include "libiberty.h"
252b5132
RH		 28#include "libbfd.h"
29#include "som.h"
3882b010 30#include "safe-ctype.h"
e1f000f6
TG		 31#include "som/reloc.h"
32#include "aout/ar.h"
252b5132 33
6a808a40
MK		 34static bfd_reloc_status_type hppa_som_reloc
35 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
36static bfd_boolean som_mkobject (bfd *);
37static bfd_boolean som_is_space (asection *);
38static bfd_boolean som_is_subspace (asection *);
39static int compare_subspaces (const void *, const void *);
e1f000f6 40static unsigned long som_compute_checksum (struct som_external_header *);
6a808a40
MK		 41static bfd_boolean som_build_and_write_symbol_table (bfd *);
42static unsigned int som_slurp_symbol_table (bfd *);
43
34f304a7 44/* Magic not defined in standard HP-UX header files until 8.0. */
252b5132
RH		 45
46#ifndef CPU_PA_RISC1_0
47#define CPU_PA_RISC1_0 0x20B
48#endif /* CPU_PA_RISC1_0 */
49
50#ifndef CPU_PA_RISC1_1
51#define CPU_PA_RISC1_1 0x210
52#endif /* CPU_PA_RISC1_1 */
53
54#ifndef CPU_PA_RISC2_0
55#define CPU_PA_RISC2_0 0x214
56#endif /* CPU_PA_RISC2_0 */
57
58#ifndef _PA_RISC1_0_ID
59#define _PA_RISC1_0_ID CPU_PA_RISC1_0
60#endif /* _PA_RISC1_0_ID */
61
62#ifndef _PA_RISC1_1_ID
63#define _PA_RISC1_1_ID CPU_PA_RISC1_1
64#endif /* _PA_RISC1_1_ID */
65
66#ifndef _PA_RISC2_0_ID
67#define _PA_RISC2_0_ID CPU_PA_RISC2_0
68#endif /* _PA_RISC2_0_ID */
69
70#ifndef _PA_RISC_MAXID
71#define _PA_RISC_MAXID 0x2FF
72#endif /* _PA_RISC_MAXID */
73
74#ifndef _PA_RISC_ID
75#define _PA_RISC_ID(__m_num) \
76 (((__m_num) == _PA_RISC1_0_ID) || \
77 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
78#endif /* _PA_RISC_ID */
79
252b5132
RH		 80/* HIUX in it's infinite stupidity changed the names for several "well
81 known" constants. Work around such braindamage. Try the HPUX version
82 first, then the HIUX version, and finally provide a default. */
83#ifdef HPUX_AUX_ID
84#define EXEC_AUX_ID HPUX_AUX_ID
85#endif
86
87#if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
88#define EXEC_AUX_ID HIUX_AUX_ID
89#endif
90
91#ifndef EXEC_AUX_ID
92#define EXEC_AUX_ID 0
93#endif
94
95/* Size (in chars) of the temporary buffers used during fixup and string
96 table writes. */
6fa957a9 97
252b5132
RH		 98#define SOM_TMP_BUFSIZE 8192
99
100/* Size of the hash table in archives. */
101#define SOM_LST_HASH_SIZE 31
102
103/* Max number of SOMs to be found in an archive. */
104#define SOM_LST_MODULE_LIMIT 1024
105
106/* Generic alignment macro. */
107#define SOM_ALIGN(val, alignment) \
dc810e39 108 (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1))
252b5132
RH		 109
110/* SOM allows any one of the four previous relocations to be reused
111 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
112 relocations are always a single byte, using a R_PREV_FIXUP instead
6fa957a9 113 of some multi-byte relocation makes object files smaller.
252b5132
RH		 114
115 Note one side effect of using a R_PREV_FIXUP is the relocation that
116 is being repeated moves to the front of the queue. */
116c20d2
NC		 117struct reloc_queue
118{
7eae7d22
KH		 119 unsigned char *reloc;
120 unsigned int size;
121} reloc_queue[4];
252b5132
RH		 122
123/* This fully describes the symbol types which may be attached to
124 an EXPORT or IMPORT directive. Only SOM uses this formation
125 (ELF has no need for it). */
116c20d2
NC		 126typedef enum
127{
252b5132
RH		 128 SYMBOL_TYPE_UNKNOWN,
129 SYMBOL_TYPE_ABSOLUTE,
130 SYMBOL_TYPE_CODE,
131 SYMBOL_TYPE_DATA,
132 SYMBOL_TYPE_ENTRY,
133 SYMBOL_TYPE_MILLICODE,
134 SYMBOL_TYPE_PLABEL,
135 SYMBOL_TYPE_PRI_PROG,
136 SYMBOL_TYPE_SEC_PROG,
137} pa_symbol_type;
138
116c20d2
NC		 139struct section_to_type
140{
e1f000f6 141 const char *section;
252b5132
RH		 142 char type;
143};
144
145/* Assorted symbol information that needs to be derived from the BFD symbol
146 and/or the BFD backend private symbol data. */
116c20d2
NC		 147struct som_misc_symbol_info
148{
252b5132
RH		 149 unsigned int symbol_type;
150 unsigned int symbol_scope;
151 unsigned int arg_reloc;
152 unsigned int symbol_info;
153 unsigned int symbol_value;
154 unsigned int priv_level;
ba20314e 155 unsigned int secondary_def;
351e2b5a
DA		 156 unsigned int is_comdat;
157 unsigned int is_common;
158 unsigned int dup_common;
252b5132
RH		 159};
160
252b5132
RH		 161/* Map SOM section names to POSIX/BSD single-character symbol types.
162
6fa957a9
KH		 163 This table includes all the standard subspaces as defined in the
164 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
252b5132
RH		 165 some reason was left out, and sections specific to embedded stabs. */
166
116c20d2
NC		 167static const struct section_to_type stt[] =
168{
252b5132
RH		 169 {"$TEXT$", 't'},
170 {"$SHLIB_INFO$", 't'},
171 {"$MILLICODE$", 't'},
172 {"$LIT$", 't'},
173 {"$CODE$", 't'},
174 {"$UNWIND_START$", 't'},
175 {"$UNWIND$", 't'},
176 {"$PRIVATE$", 'd'},
177 {"$PLT$", 'd'},
178 {"$SHLIB_DATA$", 'd'},
179 {"$DATA$", 'd'},
180 {"$SHORTDATA$", 'g'},
181 {"$DLT$", 'd'},
182 {"$GLOBAL$", 'g'},
183 {"$SHORTBSS$", 's'},
184 {"$BSS$", 'b'},
185 {"$GDB_STRINGS$", 'N'},
186 {"$GDB_SYMBOLS$", 'N'},
187 {0, 0}
188};
189
190/* About the relocation formatting table...
191
192 There are 256 entries in the table, one for each possible
193 relocation opcode available in SOM. We index the table by
194 the relocation opcode. The names and operations are those
195 defined by a.out_800 (4).
196
197 Right now this table is only used to count and perform minimal
198 processing on relocation streams so that they can be internalized
6fa957a9 199 into BFD and symbolically printed by utilities. To make actual use
252b5132
RH		 200 of them would be much more difficult, BFD's concept of relocations
201 is far too simple to handle SOM relocations. The basic assumption
202 that a relocation can be completely processed independent of other
203 relocations before an object file is written is invalid for SOM.
204
205 The SOM relocations are meant to be processed as a stream, they
206 specify copying of data from the input section to the output section
6fa957a9 207 while possibly modifying the data in some manner. They also can
252b5132
RH		 208 specify that a variable number of zeros or uninitialized data be
209 inserted on in the output segment at the current offset. Some
210 relocations specify that some previous relocation be re-applied at
211 the current location in the input/output sections. And finally a number
212 of relocations have effects on other sections (R_ENTRY, R_EXIT,
213 R_UNWIND_AUX and a variety of others). There isn't even enough room
214 in the BFD relocation data structure to store enough information to
215 perform all the relocations.
216
6fa957a9 217 Each entry in the table has three fields.
252b5132
RH		 218
219 The first entry is an index into this "class" of relocations. This
220 index can then be used as a variable within the relocation itself.
221
222 The second field is a format string which actually controls processing
223 of the relocation. It uses a simple postfix machine to do calculations
224 based on variables/constants found in the string and the relocation
6fa957a9 225 stream.
252b5132 226
6fa957a9 227 The third field specifys whether or not this relocation may use
252b5132
RH		 228 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
229 stored in the instruction.
230
6fa957a9
KH		 231 Variables:
232
252b5132
RH		 233 L = input space byte count
234 D = index into class of relocations
235 M = output space byte count
236 N = statement number (unused?)
237 O = stack operation
238 R = parameter relocation bits
239 S = symbol index
240 T = first 32 bits of stack unwind information
241 U = second 32 bits of stack unwind information
242 V = a literal constant (usually used in the next relocation)
243 P = a previous relocation
6fa957a9
KH		 244
245 Lower case letters (starting with 'b') refer to following
252b5132 246 bytes in the relocation stream. 'b' is the next 1 byte,
6fa957a9 247 c is the next 2 bytes, d is the next 3 bytes, etc...
252b5132
RH		 248 This is the variable part of the relocation entries that
249 makes our life a living hell.
250
251 numerical constants are also used in the format string. Note
6fa957a9 252 the constants are represented in decimal.
252b5132
RH		 253
254 '+', "*" and "=" represents the obvious postfix operators.
6fa957a9 255 '<' represents a left shift.
252b5132
RH		 256
257 Stack Operations:
258
259 Parameter Relocation Bits:
260
6fa957a9
KH		 261 Unwind Entries:
262
252b5132
RH		 263 Previous Relocations: The index field represents which in the queue
264 of 4 previous fixups should be re-applied.
265
266 Literal Constants: These are generally used to represent addend
267 parts of relocations when these constants are not stored in the
268 fields of the instructions themselves. For example the instruction
269 addil foo-$global$-0x1234 would use an override for "0x1234" rather
270 than storing it into the addil itself. */
271
116c20d2
NC		 272struct fixup_format
273{
252b5132 274 int D;
7dca057b 275 const char *format;
252b5132
RH		 276};
277
116c20d2
NC		 278static const struct fixup_format som_fixup_formats[256] =
279{
280 /* R_NO_RELOCATION. */
dc810e39
AM		 281 { 0, "LD1+4*=" }, /* 0x00 */
282 { 1, "LD1+4*=" }, /* 0x01 */
283 { 2, "LD1+4*=" }, /* 0x02 */
284 { 3, "LD1+4*=" }, /* 0x03 */
285 { 4, "LD1+4*=" }, /* 0x04 */
286 { 5, "LD1+4*=" }, /* 0x05 */
287 { 6, "LD1+4*=" }, /* 0x06 */
288 { 7, "LD1+4*=" }, /* 0x07 */
289 { 8, "LD1+4*=" }, /* 0x08 */
290 { 9, "LD1+4*=" }, /* 0x09 */
291 { 10, "LD1+4*=" }, /* 0x0a */
292 { 11, "LD1+4*=" }, /* 0x0b */
293 { 12, "LD1+4*=" }, /* 0x0c */
294 { 13, "LD1+4*=" }, /* 0x0d */
295 { 14, "LD1+4*=" }, /* 0x0e */
296 { 15, "LD1+4*=" }, /* 0x0f */
297 { 16, "LD1+4*=" }, /* 0x10 */
298 { 17, "LD1+4*=" }, /* 0x11 */
299 { 18, "LD1+4*=" }, /* 0x12 */
300 { 19, "LD1+4*=" }, /* 0x13 */
301 { 20, "LD1+4*=" }, /* 0x14 */
302 { 21, "LD1+4*=" }, /* 0x15 */
303 { 22, "LD1+4*=" }, /* 0x16 */
304 { 23, "LD1+4*=" }, /* 0x17 */
305 { 0, "LD8<b+1+4*=" }, /* 0x18 */
306 { 1, "LD8<b+1+4*=" }, /* 0x19 */
307 { 2, "LD8<b+1+4*=" }, /* 0x1a */
308 { 3, "LD8<b+1+4*=" }, /* 0x1b */
309 { 0, "LD16<c+1+4*=" }, /* 0x1c */
310 { 1, "LD16<c+1+4*=" }, /* 0x1d */
311 { 2, "LD16<c+1+4*=" }, /* 0x1e */
312 { 0, "Ld1+=" }, /* 0x1f */
116c20d2 313 /* R_ZEROES. */
dc810e39
AM		 314 { 0, "Lb1+4*=" }, /* 0x20 */
315 { 1, "Ld1+=" }, /* 0x21 */
116c20d2 316 /* R_UNINIT. */
dc810e39
AM		 317 { 0, "Lb1+4*=" }, /* 0x22 */
318 { 1, "Ld1+=" }, /* 0x23 */
116c20d2 319 /* R_RELOCATION. */
dc810e39 320 { 0, "L4=" }, /* 0x24 */
116c20d2 321 /* R_DATA_ONE_SYMBOL. */
dc810e39
AM		 322 { 0, "L4=Sb=" }, /* 0x25 */
323 { 1, "L4=Sd=" }, /* 0x26 */
6bba1048 324 /* R_DATA_PLABEL. */
dc810e39
AM		 325 { 0, "L4=Sb=" }, /* 0x27 */
326 { 1, "L4=Sd=" }, /* 0x28 */
116c20d2 327 /* R_SPACE_REF. */
dc810e39 328 { 0, "L4=" }, /* 0x29 */
116c20d2 329 /* R_REPEATED_INIT. */
dc810e39
AM		 330 { 0, "L4=Mb1+4*=" }, /* 0x2a */
331 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
332 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
333 { 3, "Ld1+=Me1+=" }, /* 0x2d */
334 { 0, "" }, /* 0x2e */
335 { 0, "" }, /* 0x2f */
116c20d2 336 /* R_PCREL_CALL. */
dc810e39
AM		 337 { 0, "L4=RD=Sb=" }, /* 0x30 */
338 { 1, "L4=RD=Sb=" }, /* 0x31 */
339 { 2, "L4=RD=Sb=" }, /* 0x32 */
340 { 3, "L4=RD=Sb=" }, /* 0x33 */
341 { 4, "L4=RD=Sb=" }, /* 0x34 */
342 { 5, "L4=RD=Sb=" }, /* 0x35 */
343 { 6, "L4=RD=Sb=" }, /* 0x36 */
344 { 7, "L4=RD=Sb=" }, /* 0x37 */
345 { 8, "L4=RD=Sb=" }, /* 0x38 */
346 { 9, "L4=RD=Sb=" }, /* 0x39 */
347 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
348 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
349 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
350 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
116c20d2 351 /* R_SHORT_PCREL_MODE. */
dc810e39 352 { 0, "" }, /* 0x3e */
116c20d2 353 /* R_LONG_PCREL_MODE. */
dc810e39 354 { 0, "" }, /* 0x3f */
116c20d2 355 /* R_ABS_CALL. */
dc810e39
AM		 356 { 0, "L4=RD=Sb=" }, /* 0x40 */
357 { 1, "L4=RD=Sb=" }, /* 0x41 */
358 { 2, "L4=RD=Sb=" }, /* 0x42 */
359 { 3, "L4=RD=Sb=" }, /* 0x43 */
360 { 4, "L4=RD=Sb=" }, /* 0x44 */
361 { 5, "L4=RD=Sb=" }, /* 0x45 */
362 { 6, "L4=RD=Sb=" }, /* 0x46 */
363 { 7, "L4=RD=Sb=" }, /* 0x47 */
364 { 8, "L4=RD=Sb=" }, /* 0x48 */
365 { 9, "L4=RD=Sb=" }, /* 0x49 */
366 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
367 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
368 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
369 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
116c20d2 370 /* R_RESERVED. */
dc810e39
AM		 371 { 0, "" }, /* 0x4e */
372 { 0, "" }, /* 0x4f */
116c20d2 373 /* R_DP_RELATIVE. */
dc810e39
AM		 374 { 0, "L4=SD=" }, /* 0x50 */
375 { 1, "L4=SD=" }, /* 0x51 */
376 { 2, "L4=SD=" }, /* 0x52 */
377 { 3, "L4=SD=" }, /* 0x53 */
378 { 4, "L4=SD=" }, /* 0x54 */
379 { 5, "L4=SD=" }, /* 0x55 */
380 { 6, "L4=SD=" }, /* 0x56 */
381 { 7, "L4=SD=" }, /* 0x57 */
382 { 8, "L4=SD=" }, /* 0x58 */
383 { 9, "L4=SD=" }, /* 0x59 */
384 { 10, "L4=SD=" }, /* 0x5a */
385 { 11, "L4=SD=" }, /* 0x5b */
386 { 12, "L4=SD=" }, /* 0x5c */
387 { 13, "L4=SD=" }, /* 0x5d */
388 { 14, "L4=SD=" }, /* 0x5e */
389 { 15, "L4=SD=" }, /* 0x5f */
390 { 16, "L4=SD=" }, /* 0x60 */
391 { 17, "L4=SD=" }, /* 0x61 */
392 { 18, "L4=SD=" }, /* 0x62 */
393 { 19, "L4=SD=" }, /* 0x63 */
394 { 20, "L4=SD=" }, /* 0x64 */
395 { 21, "L4=SD=" }, /* 0x65 */
396 { 22, "L4=SD=" }, /* 0x66 */
397 { 23, "L4=SD=" }, /* 0x67 */
398 { 24, "L4=SD=" }, /* 0x68 */
399 { 25, "L4=SD=" }, /* 0x69 */
400 { 26, "L4=SD=" }, /* 0x6a */
401 { 27, "L4=SD=" }, /* 0x6b */
402 { 28, "L4=SD=" }, /* 0x6c */
403 { 29, "L4=SD=" }, /* 0x6d */
404 { 30, "L4=SD=" }, /* 0x6e */
405 { 31, "L4=SD=" }, /* 0x6f */
406 { 32, "L4=Sb=" }, /* 0x70 */
407 { 33, "L4=Sd=" }, /* 0x71 */
6bba1048
DA		 408 /* R_DATA_GPREL. */
409 { 0, "L4=Sd=" }, /* 0x72 */
116c20d2 410 /* R_RESERVED. */
dc810e39
AM		 411 { 0, "" }, /* 0x73 */
412 { 0, "" }, /* 0x74 */
413 { 0, "" }, /* 0x75 */
414 { 0, "" }, /* 0x76 */
415 { 0, "" }, /* 0x77 */
116c20d2 416 /* R_DLT_REL. */
dc810e39
AM		 417 { 0, "L4=Sb=" }, /* 0x78 */
418 { 1, "L4=Sd=" }, /* 0x79 */
116c20d2 419 /* R_RESERVED. */
dc810e39
AM		 420 { 0, "" }, /* 0x7a */
421 { 0, "" }, /* 0x7b */
422 { 0, "" }, /* 0x7c */
423 { 0, "" }, /* 0x7d */
424 { 0, "" }, /* 0x7e */
425 { 0, "" }, /* 0x7f */
116c20d2 426 /* R_CODE_ONE_SYMBOL. */
dc810e39
AM		 427 { 0, "L4=SD=" }, /* 0x80 */
428 { 1, "L4=SD=" }, /* 0x81 */
429 { 2, "L4=SD=" }, /* 0x82 */
430 { 3, "L4=SD=" }, /* 0x83 */
431 { 4, "L4=SD=" }, /* 0x84 */
432 { 5, "L4=SD=" }, /* 0x85 */
433 { 6, "L4=SD=" }, /* 0x86 */
434 { 7, "L4=SD=" }, /* 0x87 */
435 { 8, "L4=SD=" }, /* 0x88 */
436 { 9, "L4=SD=" }, /* 0x89 */
437 { 10, "L4=SD=" }, /* 0x8q */
438 { 11, "L4=SD=" }, /* 0x8b */
439 { 12, "L4=SD=" }, /* 0x8c */
440 { 13, "L4=SD=" }, /* 0x8d */
441 { 14, "L4=SD=" }, /* 0x8e */
442 { 15, "L4=SD=" }, /* 0x8f */
443 { 16, "L4=SD=" }, /* 0x90 */
444 { 17, "L4=SD=" }, /* 0x91 */
445 { 18, "L4=SD=" }, /* 0x92 */
446 { 19, "L4=SD=" }, /* 0x93 */
447 { 20, "L4=SD=" }, /* 0x94 */
448 { 21, "L4=SD=" }, /* 0x95 */
449 { 22, "L4=SD=" }, /* 0x96 */
450 { 23, "L4=SD=" }, /* 0x97 */
451 { 24, "L4=SD=" }, /* 0x98 */
452 { 25, "L4=SD=" }, /* 0x99 */
453 { 26, "L4=SD=" }, /* 0x9a */
454 { 27, "L4=SD=" }, /* 0x9b */
455 { 28, "L4=SD=" }, /* 0x9c */
456 { 29, "L4=SD=" }, /* 0x9d */
457 { 30, "L4=SD=" }, /* 0x9e */
458 { 31, "L4=SD=" }, /* 0x9f */
459 { 32, "L4=Sb=" }, /* 0xa0 */
460 { 33, "L4=Sd=" }, /* 0xa1 */
116c20d2 461 /* R_RESERVED. */
dc810e39
AM		 462 { 0, "" }, /* 0xa2 */
463 { 0, "" }, /* 0xa3 */
464 { 0, "" }, /* 0xa4 */
465 { 0, "" }, /* 0xa5 */
466 { 0, "" }, /* 0xa6 */
467 { 0, "" }, /* 0xa7 */
468 { 0, "" }, /* 0xa8 */
469 { 0, "" }, /* 0xa9 */
470 { 0, "" }, /* 0xaa */
471 { 0, "" }, /* 0xab */
472 { 0, "" }, /* 0xac */
473 { 0, "" }, /* 0xad */
116c20d2 474 /* R_MILLI_REL. */
dc810e39
AM		 475 { 0, "L4=Sb=" }, /* 0xae */
476 { 1, "L4=Sd=" }, /* 0xaf */
116c20d2 477 /* R_CODE_PLABEL. */
dc810e39
AM		 478 { 0, "L4=Sb=" }, /* 0xb0 */
479 { 1, "L4=Sd=" }, /* 0xb1 */
116c20d2 480 /* R_BREAKPOINT. */
dc810e39 481 { 0, "L4=" }, /* 0xb2 */
116c20d2 482 /* R_ENTRY. */
dc810e39
AM		 483 { 0, "Te=Ue=" }, /* 0xb3 */
484 { 1, "Uf=" }, /* 0xb4 */
116c20d2 485 /* R_ALT_ENTRY. */
dc810e39 486 { 0, "" }, /* 0xb5 */
116c20d2 487 /* R_EXIT. */
dc810e39 488 { 0, "" }, /* 0xb6 */
116c20d2 489 /* R_BEGIN_TRY. */
dc810e39 490 { 0, "" }, /* 0xb7 */
116c20d2 491 /* R_END_TRY. */
dc810e39
AM		 492 { 0, "R0=" }, /* 0xb8 */
493 { 1, "Rb4*=" }, /* 0xb9 */
494 { 2, "Rd4*=" }, /* 0xba */
116c20d2 495 /* R_BEGIN_BRTAB. */
dc810e39 496 { 0, "" }, /* 0xbb */
116c20d2 497 /* R_END_BRTAB. */
dc810e39 498 { 0, "" }, /* 0xbc */
116c20d2 499 /* R_STATEMENT. */
dc810e39
AM		 500 { 0, "Nb=" }, /* 0xbd */
501 { 1, "Nc=" }, /* 0xbe */
502 { 2, "Nd=" }, /* 0xbf */
116c20d2 503 /* R_DATA_EXPR. */
dc810e39 504 { 0, "L4=" }, /* 0xc0 */
116c20d2 505 /* R_CODE_EXPR. */
dc810e39 506 { 0, "L4=" }, /* 0xc1 */
116c20d2 507 /* R_FSEL. */
dc810e39 508 { 0, "" }, /* 0xc2 */
116c20d2 509 /* R_LSEL. */
dc810e39 510 { 0, "" }, /* 0xc3 */
116c20d2 511 /* R_RSEL. */
dc810e39 512 { 0, "" }, /* 0xc4 */
116c20d2 513 /* R_N_MODE. */
dc810e39 514 { 0, "" }, /* 0xc5 */
116c20d2 515 /* R_S_MODE. */
dc810e39 516 { 0, "" }, /* 0xc6 */
116c20d2 517 /* R_D_MODE. */
dc810e39 518 { 0, "" }, /* 0xc7 */
116c20d2 519 /* R_R_MODE. */
dc810e39 520 { 0, "" }, /* 0xc8 */
116c20d2 521 /* R_DATA_OVERRIDE. */
dc810e39
AM		 522 { 0, "V0=" }, /* 0xc9 */
523 { 1, "Vb=" }, /* 0xca */
524 { 2, "Vc=" }, /* 0xcb */
525 { 3, "Vd=" }, /* 0xcc */
526 { 4, "Ve=" }, /* 0xcd */
116c20d2 527 /* R_TRANSLATED. */
dc810e39 528 { 0, "" }, /* 0xce */
116c20d2 529 /* R_AUX_UNWIND. */
34f304a7 530 { 0,"Sd=Ve=Ee=" }, /* 0xcf */
116c20d2 531 /* R_COMP1. */
dc810e39 532 { 0, "Ob=" }, /* 0xd0 */
116c20d2 533 /* R_COMP2. */
dc810e39 534 { 0, "Ob=Sd=" }, /* 0xd1 */
116c20d2 535 /* R_COMP3. */
dc810e39 536 { 0, "Ob=Ve=" }, /* 0xd2 */
116c20d2 537 /* R_PREV_FIXUP. */
dc810e39
AM		 538 { 0, "P" }, /* 0xd3 */
539 { 1, "P" }, /* 0xd4 */
540 { 2, "P" }, /* 0xd5 */
541 { 3, "P" }, /* 0xd6 */
116c20d2 542 /* R_SEC_STMT. */
dc810e39 543 { 0, "" }, /* 0xd7 */
116c20d2 544 /* R_N0SEL. */
dc810e39 545 { 0, "" }, /* 0xd8 */
116c20d2 546 /* R_N1SEL. */
dc810e39 547 { 0, "" }, /* 0xd9 */
116c20d2 548 /* R_LINETAB. */
dc810e39 549 { 0, "Eb=Sd=Ve=" }, /* 0xda */
116c20d2 550 /* R_LINETAB_ESC. */
dc810e39 551 { 0, "Eb=Mb=" }, /* 0xdb */
116c20d2 552 /* R_LTP_OVERRIDE. */
dc810e39 553 { 0, "" }, /* 0xdc */
116c20d2 554 /* R_COMMENT. */
34f304a7 555 { 0, "Ob=Vf=" }, /* 0xdd */
116c20d2 556 /* R_RESERVED. */
dc810e39
AM		 557 { 0, "" }, /* 0xde */
558 { 0, "" }, /* 0xdf */
559 { 0, "" }, /* 0xe0 */
560 { 0, "" }, /* 0xe1 */
561 { 0, "" }, /* 0xe2 */
562 { 0, "" }, /* 0xe3 */
563 { 0, "" }, /* 0xe4 */
564 { 0, "" }, /* 0xe5 */
565 { 0, "" }, /* 0xe6 */
566 { 0, "" }, /* 0xe7 */
567 { 0, "" }, /* 0xe8 */
568 { 0, "" }, /* 0xe9 */
569 { 0, "" }, /* 0xea */
570 { 0, "" }, /* 0xeb */
571 { 0, "" }, /* 0xec */
572 { 0, "" }, /* 0xed */
573 { 0, "" }, /* 0xee */
574 { 0, "" }, /* 0xef */
575 { 0, "" }, /* 0xf0 */
576 { 0, "" }, /* 0xf1 */
577 { 0, "" }, /* 0xf2 */
578 { 0, "" }, /* 0xf3 */
579 { 0, "" }, /* 0xf4 */
580 { 0, "" }, /* 0xf5 */
581 { 0, "" }, /* 0xf6 */
582 { 0, "" }, /* 0xf7 */
583 { 0, "" }, /* 0xf8 */
584 { 0, "" }, /* 0xf9 */
585 { 0, "" }, /* 0xfa */
586 { 0, "" }, /* 0xfb */
587 { 0, "" }, /* 0xfc */
588 { 0, "" }, /* 0xfd */
589 { 0, "" }, /* 0xfe */
590 { 0, "" }, /* 0xff */
252b5132
RH		 591};
592
116c20d2
NC		 593static const int comp1_opcodes[] =
594{
252b5132
RH		 595 0x00,
596 0x40,
597 0x41,
598 0x42,
599 0x43,
600 0x44,
601 0x45,
602 0x46,
603 0x47,
604 0x48,
605 0x49,
606 0x4a,
607 0x4b,
608 0x60,
609 0x80,
610 0xa0,
611 0xc0,
612 -1
613};
614
116c20d2
NC		 615static const int comp2_opcodes[] =
616{
252b5132
RH		 617 0x00,
618 0x80,
619 0x82,
620 0xc0,
621 -1
622};
623
116c20d2
NC		 624static const int comp3_opcodes[] =
625{
252b5132
RH		 626 0x00,
627 0x02,
628 -1
629};
630
631/* These apparently are not in older versions of hpux reloc.h (hpux7). */
252b5132
RH		 632
633/* And these first appeared in hpux10. */
634#ifndef R_SHORT_PCREL_MODE
2667095f 635#define NO_PCREL_MODES
252b5132
RH		 636#define R_SHORT_PCREL_MODE 0x3e
637#endif
638
36e89602 639#define SOM_HOWTO(TYPE, NAME) \
b34976b6 640 HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
36e89602 641
116c20d2
NC		 642static reloc_howto_type som_hppa_howto_table[] =
643{
7dca057b
JL		 644 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
645 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
646 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
647 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
648 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
649 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
650 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
651 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
652 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
653 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
654 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
655 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
656 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
657 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
658 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
659 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
660 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
661 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
662 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
663 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
664 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
665 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
666 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
667 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
668 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
669 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
670 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
671 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
672 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
673 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
674 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
675 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
676 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
677 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
678 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
679 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
680 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
681 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
682 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
683 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
684 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
685 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
686 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
687 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
688 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
689 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
690 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
691 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
692 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
693 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
694 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
695 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
696 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
697 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
698 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
699 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
700 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
701 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
702 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
703 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
704 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
705 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
706 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
707 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
708 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
709 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
710 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
711 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
712 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
713 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
714 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
715 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
716 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
717 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
718 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
719 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
720 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
721 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
722 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
723 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
724 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
725 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
726 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
727 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
728 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
729 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
730 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
731 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
732 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
733 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
734 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
735 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
736 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
737 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
738 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
739 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
740 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
741 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
742 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
743 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
744 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
745 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
746 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
747 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
748 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
749 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
750 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
751 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
752 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
753 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
754 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
755 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
756 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
757 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
6bba1048 758 SOM_HOWTO (R_DATA_GPREL, "R_DATA_GPREL"),
7dca057b
JL		 759 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
760 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
761 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
762 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
763 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
764 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
765 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
766 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
767 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
768 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
769 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
770 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
771 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
772 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
773 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
774 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
775 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
776 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
777 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
778 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
779 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
780 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
781 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
782 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
783 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
784 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
785 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
786 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
787 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
788 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
789 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
790 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
791 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
792 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
793 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
794 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
795 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
796 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
797 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
798 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
799 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
800 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
801 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
802 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
803 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
804 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
805 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
806 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
807 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
808 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
809 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
810 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
811 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
812 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
813 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
814 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
815 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
816 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
817 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
818 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
819 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
820 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
821 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
822 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
823 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
824 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
825 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
826 SOM_HOWTO (R_EXIT, "R_EXIT"),
827 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
828 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
829 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
830 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
831 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
832 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
833 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
834 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
835 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
836 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
837 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
838 SOM_HOWTO (R_FSEL, "R_FSEL"),
839 SOM_HOWTO (R_LSEL, "R_LSEL"),
840 SOM_HOWTO (R_RSEL, "R_RSEL"),
841 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
842 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
843 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
844 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
845 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
846 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
847 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
848 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
849 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
850 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
851 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
852 SOM_HOWTO (R_COMP1, "R_COMP1"),
853 SOM_HOWTO (R_COMP2, "R_COMP2"),
854 SOM_HOWTO (R_COMP3, "R_COMP3"),
855 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
856 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
857 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
858 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
859 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
860 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
861 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
862 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
863 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
864 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
865 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
866 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
867 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
868 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
869 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
870 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
871 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
872 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
873 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
874 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
875 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
876 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
877 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
878 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
879 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
880 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
881 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
882 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
883 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
884 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
885 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
886 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
887 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
888 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
889 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
890 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
891 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
892 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
893 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
894 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
895 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
896 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
897 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
898 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
7eae7d22
KH		 899 SOM_HOWTO (R_RESERVED, "R_RESERVED")
900};
6fa957a9 901
252b5132
RH		 902/* Initialize the SOM relocation queue. By definition the queue holds
903 the last four multibyte fixups. */
6fa957a9 904
252b5132 905static void
116c20d2 906som_initialize_reloc_queue (struct reloc_queue *queue)
252b5132
RH		 907{
908 queue[0].reloc = NULL;
909 queue[0].size = 0;
910 queue[1].reloc = NULL;
911 queue[1].size = 0;
912 queue[2].reloc = NULL;
913 queue[2].size = 0;
914 queue[3].reloc = NULL;
915 queue[3].size = 0;
916}
917
918/* Insert a new relocation into the relocation queue. */
919
920static void
116c20d2
NC		 921som_reloc_queue_insert (unsigned char *p,
922 unsigned int size,
923 struct reloc_queue *queue)
252b5132
RH		 924{
925 queue[3].reloc = queue[2].reloc;
926 queue[3].size = queue[2].size;
927 queue[2].reloc = queue[1].reloc;
928 queue[2].size = queue[1].size;
929 queue[1].reloc = queue[0].reloc;
930 queue[1].size = queue[0].size;
931 queue[0].reloc = p;
932 queue[0].size = size;
933}
934
935/* When an entry in the relocation queue is reused, the entry moves
936 to the front of the queue. */
937
938static void
f664f618 939som_reloc_queue_fix (struct reloc_queue *queue, unsigned int idx)
252b5132 940{
f664f618 941 if (idx == 0)
252b5132
RH		 942 return;
943
f664f618 944 if (idx == 1)
252b5132
RH		 945 {
946 unsigned char *tmp1 = queue[0].reloc;
947 unsigned int tmp2 = queue[0].size;
116c20d2 948
252b5132
RH		 949 queue[0].reloc = queue[1].reloc;
950 queue[0].size = queue[1].size;
951 queue[1].reloc = tmp1;
952 queue[1].size = tmp2;
953 return;
954 }
955
f664f618 956 if (idx == 2)
252b5132
RH		 957 {
958 unsigned char *tmp1 = queue[0].reloc;
959 unsigned int tmp2 = queue[0].size;
116c20d2 960
252b5132
RH		 961 queue[0].reloc = queue[2].reloc;
962 queue[0].size = queue[2].size;
963 queue[2].reloc = queue[1].reloc;
964 queue[2].size = queue[1].size;
965 queue[1].reloc = tmp1;
966 queue[1].size = tmp2;
967 return;
968 }
969
f664f618 970 if (idx == 3)
252b5132
RH		 971 {
972 unsigned char *tmp1 = queue[0].reloc;
973 unsigned int tmp2 = queue[0].size;
116c20d2 974
252b5132
RH		 975 queue[0].reloc = queue[3].reloc;
976 queue[0].size = queue[3].size;
977 queue[3].reloc = queue[2].reloc;
978 queue[3].size = queue[2].size;
979 queue[2].reloc = queue[1].reloc;
980 queue[2].size = queue[1].size;
981 queue[1].reloc = tmp1;
982 queue[1].size = tmp2;
983 return;
984 }
6fa957a9 985 abort ();
252b5132
RH		 986}
987
988/* Search for a particular relocation in the relocation queue. */
989
990static int
116c20d2
NC		 991som_reloc_queue_find (unsigned char *p,
992 unsigned int size,
993 struct reloc_queue *queue)
252b5132
RH		 994{
995 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
996 && size == queue[0].size)
997 return 0;
998 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
999 && size == queue[1].size)
1000 return 1;
1001 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1002 && size == queue[2].size)
1003 return 2;
1004 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1005 && size == queue[3].size)
1006 return 3;
1007 return -1;
1008}
1009
1010static unsigned char *
116c20d2 1011try_prev_fixup (bfd *abfd ATTRIBUTE_UNUSED,
a96afa0f 1012 unsigned int *subspace_reloc_sizep,
116c20d2
NC		 1013 unsigned char *p,
1014 unsigned int size,
1015 struct reloc_queue *queue)
252b5132
RH		 1016{
1017 int queue_index = som_reloc_queue_find (p, size, queue);
1018
1019 if (queue_index != -1)
1020 {
1021 /* Found this in a previous fixup. Undo the fixup we
6fa957a9 1022 just built and use R_PREV_FIXUP instead. We saved
252b5132
RH		 1023 a total of size - 1 bytes in the fixup stream. */
1024 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1025 p += 1;
1026 *subspace_reloc_sizep += 1;
1027 som_reloc_queue_fix (queue, queue_index);
1028 }
1029 else
1030 {
1031 som_reloc_queue_insert (p, size, queue);
1032 *subspace_reloc_sizep += size;
1033 p += size;
1034 }
1035 return p;
1036}
1037
1038/* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1039 bytes without any relocation. Update the size of the subspace
6fa957a9 1040 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
252b5132
RH		 1041 current pointer into the relocation stream. */
1042
1043static unsigned char *
116c20d2
NC		 1044som_reloc_skip (bfd *abfd,
1045 unsigned int skip,
1046 unsigned char *p,
1047 unsigned int *subspace_reloc_sizep,
1048 struct reloc_queue *queue)
252b5132
RH		 1049{
1050 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1051 then R_PREV_FIXUPs to get the difference down to a
1052 reasonable size. */
1053 if (skip >= 0x1000000)
1054 {
1055 skip -= 0x1000000;
1056 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1057 bfd_put_8 (abfd, 0xff, p + 1);
dc810e39 1058 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
252b5132
RH		 1059 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1060 while (skip >= 0x1000000)
1061 {
1062 skip -= 0x1000000;
1063 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1064 p++;
1065 *subspace_reloc_sizep += 1;
1066 /* No need to adjust queue here since we are repeating the
1067 most recent fixup. */
1068 }
1069 }
6fa957a9
KH		 1070
1071 /* The difference must be less than 0x1000000. Use one
252b5132
RH		 1072 more R_NO_RELOCATION entry to get to the right difference. */
1073 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1074 {
1075 /* Difference can be handled in a simple single-byte
1076 R_NO_RELOCATION entry. */
1077 if (skip <= 0x60)
1078 {
1079 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1080 *subspace_reloc_sizep += 1;
1081 p++;
1082 }
1083 /* Handle it with a two byte R_NO_RELOCATION entry. */
1084 else if (skip <= 0x1000)
1085 {
1086 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1087 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1088 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1089 }
1090 /* Handle it with a three byte R_NO_RELOCATION entry. */
1091 else
1092 {
1093 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
dc810e39 1094 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
252b5132
RH		 1095 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1096 }
1097 }
1098 /* Ugh. Punt and use a 4 byte entry. */
1099 else if (skip > 0)
1100 {
1101 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1102 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
dc810e39 1103 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
252b5132
RH		 1104 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1105 }
1106 return p;
1107}
1108
1109/* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1110 from a BFD relocation. Update the size of the subspace relocation
1111 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1112 into the relocation stream. */
1113
1114static unsigned char *
116c20d2
NC		 1115som_reloc_addend (bfd *abfd,
1116 bfd_vma addend,
1117 unsigned char *p,
1118 unsigned int *subspace_reloc_sizep,
1119 struct reloc_queue *queue)
252b5132 1120{
dc810e39 1121 if (addend + 0x80 < 0x100)
252b5132
RH		 1122 {
1123 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1124 bfd_put_8 (abfd, addend, p + 1);
6fa957a9 1125 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
252b5132 1126 }
dc810e39 1127 else if (addend + 0x8000 < 0x10000)
252b5132
RH		 1128 {
1129 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1130 bfd_put_16 (abfd, addend, p + 1);
1131 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1132 }
dc810e39 1133 else if (addend + 0x800000 < 0x1000000)
252b5132
RH		 1134 {
1135 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1136 bfd_put_8 (abfd, addend >> 16, p + 1);
1137 bfd_put_16 (abfd, addend, p + 2);
1138 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1139 }
1140 else
1141 {
1142 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1143 bfd_put_32 (abfd, addend, p + 1);
1144 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1145 }
1146 return p;
1147}
1148
1149/* Handle a single function call relocation. */
1150
1151static unsigned char *
116c20d2
NC		 1152som_reloc_call (bfd *abfd,
1153 unsigned char *p,
1154 unsigned int *subspace_reloc_sizep,
1155 arelent *bfd_reloc,
1156 int sym_num,
1157 struct reloc_queue *queue)
252b5132
RH		 1158{
1159 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1160 int rtn_bits = arg_bits & 0x3;
1161 int type, done = 0;
6fa957a9 1162
252b5132
RH		 1163 /* You'll never believe all this is necessary to handle relocations
1164 for function calls. Having to compute and pack the argument
1165 relocation bits is the real nightmare.
6fa957a9 1166
252b5132
RH		 1167 If you're interested in how this works, just forget it. You really
1168 do not want to know about this braindamage. */
1169
1170 /* First see if this can be done with a "simple" relocation. Simple
1171 relocations have a symbol number < 0x100 and have simple encodings
1172 of argument relocations. */
1173
1174 if (sym_num < 0x100)
1175 {
1176 switch (arg_bits)
1177 {
1178 case 0:
1179 case 1:
1180 type = 0;
1181 break;
1182 case 1 << 8:
1183 case 1 << 8 | 1:
1184 type = 1;
1185 break;
1186 case 1 << 8 | 1 << 6:
1187 case 1 << 8 | 1 << 6 | 1:
1188 type = 2;
1189 break;
1190 case 1 << 8 | 1 << 6 | 1 << 4:
1191 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1192 type = 3;
1193 break;
1194 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1195 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1196 type = 4;
1197 break;
1198 default:
1199 /* Not one of the easy encodings. This will have to be
1200 handled by the more complex code below. */
1201 type = -1;
1202 break;
1203 }
1204 if (type != -1)
1205 {
1206 /* Account for the return value too. */
1207 if (rtn_bits)
1208 type += 5;
1209
1210 /* Emit a 2 byte relocation. Then see if it can be handled
1211 with a relocation which is already in the relocation queue. */
1212 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1213 bfd_put_8 (abfd, sym_num, p + 1);
1214 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1215 done = 1;
1216 }
1217 }
6fa957a9 1218
252b5132
RH		 1219 /* If this could not be handled with a simple relocation, then do a hard
1220 one. Hard relocations occur if the symbol number was too high or if
1221 the encoding of argument relocation bits is too complex. */
1222 if (! done)
1223 {
1224 /* Don't ask about these magic sequences. I took them straight
1225 from gas-1.36 which took them from the a.out man page. */
1226 type = rtn_bits;
1227 if ((arg_bits >> 6 & 0xf) == 0xe)
1228 type += 9 * 40;
1229 else
1230 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1231 if ((arg_bits >> 2 & 0xf) == 0xe)
1232 type += 9 * 4;
1233 else
1234 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
6fa957a9 1235
252b5132
RH		 1236 /* Output the first two bytes of the relocation. These describe
1237 the length of the relocation and encoding style. */
1238 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1239 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1240 p);
1241 bfd_put_8 (abfd, type, p + 1);
6fa957a9 1242
252b5132
RH		 1243 /* Now output the symbol index and see if this bizarre relocation
1244 just happened to be in the relocation queue. */
1245 if (sym_num < 0x100)
1246 {
1247 bfd_put_8 (abfd, sym_num, p + 2);
1248 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1249 }
1250 else
1251 {
1252 bfd_put_8 (abfd, sym_num >> 16, p + 2);
dc810e39 1253 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
252b5132
RH		 1254 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1255 }
1256 }
1257 return p;
1258}
1259
a99cf92b
DA		 1260/* Return the logarithm of X, base 2, considering X unsigned,
1261 if X is a power of 2. Otherwise, returns -1. */
252b5132
RH		 1262
1263static int
116c20d2 1264exact_log2 (unsigned int x)
252b5132
RH		 1265{
1266 int log = 0;
1267
1268 /* Test for 0 or a power of 2. */
1269 if (x == 0 || x != (x & -x))
1270 return -1;
1271
1272 while ((x >>= 1) != 0)
1273 log++;
1274 return log;
1275}
1276
1277static bfd_reloc_status_type
116c20d2
NC		 1278hppa_som_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1279 arelent *reloc_entry,
1280 asymbol *symbol_in ATTRIBUTE_UNUSED,
6a808a40 1281 void *data ATTRIBUTE_UNUSED,
116c20d2
NC		 1282 asection *input_section,
1283 bfd *output_bfd,
1284 char **error_message ATTRIBUTE_UNUSED)
252b5132
RH		 1285{
1286 if (output_bfd)
116c20d2
NC		 1287 reloc_entry->address += input_section->output_offset;
1288
252b5132
RH		 1289 return bfd_reloc_ok;
1290}
1291
1292/* Given a generic HPPA relocation type, the instruction format,
1293 and a field selector, return one or more appropriate SOM relocations. */
1294
1295int **
116c20d2
NC		 1296hppa_som_gen_reloc_type (bfd *abfd,
1297 int base_type,
1298 int format,
1299 enum hppa_reloc_field_selector_type_alt field,
1300 int sym_diff,
1301 asymbol *sym)
252b5132
RH		 1302{
1303 int *final_type, **final_types;
1304
116c20d2
NC		 1305 final_types = bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1306 final_type = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
252b5132
RH		 1307 if (!final_types || !final_type)
1308 return NULL;
1309
6fa957a9 1310 /* The field selector may require additional relocations to be
252b5132
RH		 1311 generated. It's impossible to know at this moment if additional
1312 relocations will be needed, so we make them. The code to actually
1313 write the relocation/fixup stream is responsible for removing
1314 any redundant relocations. */
1315 switch (field)
1316 {
7eae7d22
KH		 1317 case e_fsel:
1318 case e_psel:
1319 case e_lpsel:
1320 case e_rpsel:
1321 final_types[0] = final_type;
1322 final_types[1] = NULL;
1323 final_types[2] = NULL;
1324 *final_type = base_type;
1325 break;
252b5132 1326
7eae7d22
KH		 1327 case e_tsel:
1328 case e_ltsel:
1329 case e_rtsel:
116c20d2 1330 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1331 if (!final_types[0])
1332 return NULL;
1333 if (field == e_tsel)
1334 *final_types[0] = R_FSEL;
1335 else if (field == e_ltsel)
1336 *final_types[0] = R_LSEL;
1337 else
1338 *final_types[0] = R_RSEL;
1339 final_types[1] = final_type;
1340 final_types[2] = NULL;
1341 *final_type = base_type;
1342 break;
252b5132 1343
7eae7d22
KH		 1344 case e_lssel:
1345 case e_rssel:
116c20d2 1346 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1347 if (!final_types[0])
1348 return NULL;
1349 *final_types[0] = R_S_MODE;
1350 final_types[1] = final_type;
1351 final_types[2] = NULL;
1352 *final_type = base_type;
1353 break;
252b5132 1354
7eae7d22
KH		 1355 case e_lsel:
1356 case e_rsel:
116c20d2 1357 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1358 if (!final_types[0])
1359 return NULL;
1360 *final_types[0] = R_N_MODE;
1361 final_types[1] = final_type;
1362 final_types[2] = NULL;
1363 *final_type = base_type;
1364 break;
252b5132 1365
7eae7d22
KH		 1366 case e_ldsel:
1367 case e_rdsel:
116c20d2 1368 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1369 if (!final_types[0])
1370 return NULL;
1371 *final_types[0] = R_D_MODE;
1372 final_types[1] = final_type;
1373 final_types[2] = NULL;
1374 *final_type = base_type;
1375 break;
252b5132 1376
7eae7d22
KH		 1377 case e_lrsel:
1378 case e_rrsel:
116c20d2 1379 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1380 if (!final_types[0])
1381 return NULL;
1382 *final_types[0] = R_R_MODE;
1383 final_types[1] = final_type;
1384 final_types[2] = NULL;
1385 *final_type = base_type;
1386 break;
252b5132 1387
7eae7d22 1388 case e_nsel:
116c20d2 1389 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1390 if (!final_types[0])
1391 return NULL;
1392 *final_types[0] = R_N1SEL;
1393 final_types[1] = final_type;
1394 final_types[2] = NULL;
1395 *final_type = base_type;
1396 break;
252b5132 1397
7eae7d22
KH		 1398 case e_nlsel:
1399 case e_nlrsel:
116c20d2 1400 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1401 if (!final_types[0])
1402 return NULL;
1403 *final_types[0] = R_N0SEL;
116c20d2 1404 final_types[1] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
7eae7d22
KH		 1405 if (!final_types[1])
1406 return NULL;
1407 if (field == e_nlsel)
1408 *final_types[1] = R_N_MODE;
1409 else
1410 *final_types[1] = R_R_MODE;
1411 final_types[2] = final_type;
1412 final_types[3] = NULL;
1413 *final_type = base_type;
1414 break;
5198ba8b
DA		 1415
1416 /* FIXME: These two field selectors are not currently supported. */
1417 case e_ltpsel:
1418 case e_rtpsel:
1419 abort ();
252b5132 1420 }
6fa957a9 1421
252b5132
RH		 1422 switch (base_type)
1423 {
1424 case R_HPPA:
1425 /* The difference of two symbols needs *very* special handling. */
1426 if (sym_diff)
1427 {
dc810e39 1428 bfd_size_type amt = sizeof (int);
116c20d2
NC		 1429
1430 final_types[0] = bfd_alloc (abfd, amt);
1431 final_types[1] = bfd_alloc (abfd, amt);
1432 final_types[2] = bfd_alloc (abfd, amt);
1433 final_types[3] = bfd_alloc (abfd, amt);
252b5132 1434 if (!final_types[0] || !final_types[1] || !final_types[2])
7eae7d22 1435 return NULL;
252b5132
RH		 1436 if (field == e_fsel)
1437 *final_types[0] = R_FSEL;
1438 else if (field == e_rsel)
1439 *final_types[0] = R_RSEL;
1440 else if (field == e_lsel)
1441 *final_types[0] = R_LSEL;
1442 *final_types[1] = R_COMP2;
1443 *final_types[2] = R_COMP2;
1444 *final_types[3] = R_COMP1;
1445 final_types[4] = final_type;
1446 if (format == 32)
1447 *final_types[4] = R_DATA_EXPR;
1448 else
1449 *final_types[4] = R_CODE_EXPR;
1450 final_types[5] = NULL;
1451 break;
1452 }
1453 /* PLABELs get their own relocation type. */
1454 else if (field == e_psel
7eae7d22
KH		 1455 || field == e_lpsel
1456 || field == e_rpsel)
252b5132
RH		 1457 {
1458 /* A PLABEL relocation that has a size of 32 bits must
1459 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1460 if (format == 32)
1461 *final_type = R_DATA_PLABEL;
1462 else
1463 *final_type = R_CODE_PLABEL;
1464 }
1465 /* PIC stuff. */
1466 else if (field == e_tsel
7eae7d22
KH		 1467 || field == e_ltsel
1468 || field == e_rtsel)
252b5132
RH		 1469 *final_type = R_DLT_REL;
1470 /* A relocation in the data space is always a full 32bits. */
1471 else if (format == 32)
1472 {
1473 *final_type = R_DATA_ONE_SYMBOL;
1474
1475 /* If there's no SOM symbol type associated with this BFD
1476 symbol, then set the symbol type to ST_DATA.
1477
1478 Only do this if the type is going to default later when
1479 we write the object file.
1480
1481 This is done so that the linker never encounters an
1482 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1483
1484 This allows the compiler to generate exception handling
1485 tables.
1486
1487 Note that one day we may need to also emit BEGIN_BRTAB and
1488 END_BRTAB to prevent the linker from optimizing away insns
1489 in exception handling regions. */
1490 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1491 && (sym->flags & BSF_SECTION_SYM) == 0
1492 && (sym->flags & BSF_FUNCTION) == 0
1493 && ! bfd_is_com_section (sym->section))
1494 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1495 }
1496 break;
1497
252b5132
RH		 1498 case R_HPPA_GOTOFF:
1499 /* More PLABEL special cases. */
1500 if (field == e_psel
1501 || field == e_lpsel
1502 || field == e_rpsel)
1503 *final_type = R_DATA_PLABEL;
6bba1048
DA		 1504 else if (field == e_fsel && format == 32)
1505 *final_type = R_DATA_GPREL;
252b5132
RH		 1506 break;
1507
1508 case R_HPPA_COMPLEX:
1509 /* The difference of two symbols needs *very* special handling. */
1510 if (sym_diff)
1511 {
dc810e39 1512 bfd_size_type amt = sizeof (int);
116c20d2
NC		 1513
1514 final_types[0] = bfd_alloc (abfd, amt);
1515 final_types[1] = bfd_alloc (abfd, amt);
1516 final_types[2] = bfd_alloc (abfd, amt);
1517 final_types[3] = bfd_alloc (abfd, amt);
252b5132 1518 if (!final_types[0] || !final_types[1] || !final_types[2])
7eae7d22 1519 return NULL;
252b5132
RH		 1520 if (field == e_fsel)
1521 *final_types[0] = R_FSEL;
1522 else if (field == e_rsel)
1523 *final_types[0] = R_RSEL;
1524 else if (field == e_lsel)
1525 *final_types[0] = R_LSEL;
1526 *final_types[1] = R_COMP2;
1527 *final_types[2] = R_COMP2;
1528 *final_types[3] = R_COMP1;
1529 final_types[4] = final_type;
1530 if (format == 32)
1531 *final_types[4] = R_DATA_EXPR;
1532 else
1533 *final_types[4] = R_CODE_EXPR;
1534 final_types[5] = NULL;
1535 break;
1536 }
1537 else
1538 break;
1539
1540 case R_HPPA_NONE:
1541 case R_HPPA_ABS_CALL:
252b5132
RH		 1542 /* Right now we can default all these. */
1543 break;
2667095f
JL		 1544
1545 case R_HPPA_PCREL_CALL:
1546 {
1547#ifndef NO_PCREL_MODES
1548 /* If we have short and long pcrel modes, then generate the proper
1549 mode selector, then the pcrel relocation. Redundant selectors
7dee875e 1550 will be eliminated as the relocs are sized and emitted. */
dc810e39 1551 bfd_size_type amt = sizeof (int);
116c20d2
NC		 1552
1553 final_types[0] = bfd_alloc (abfd, amt);
2667095f
JL		 1554 if (!final_types[0])
1555 return NULL;
1556 if (format == 17)
1557 *final_types[0] = R_SHORT_PCREL_MODE;
1558 else
1559 *final_types[0] = R_LONG_PCREL_MODE;
1560 final_types[1] = final_type;
1561 final_types[2] = NULL;
1562 *final_type = base_type;
1563#endif
1564 break;
1565 }
252b5132
RH		 1566 }
1567 return final_types;
1568}
1569
1570/* Return the address of the correct entry in the PA SOM relocation
1571 howto table. */
1572
252b5132 1573static reloc_howto_type *
116c20d2
NC		 1574som_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1575 bfd_reloc_code_real_type code)
252b5132
RH		 1576{
1577 if ((int) code < (int) R_NO_RELOCATION + 255)
1578 {
1579 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1580 return &som_hppa_howto_table[(int) code];
1581 }
1582
116c20d2 1583 return NULL;
252b5132
RH		 1584}
1585
157090f7
AM		 1586static reloc_howto_type *
1587som_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1588 const char *r_name)
1589{
1590 unsigned int i;
1591
1592 for (i = 0;
1593 i < sizeof (som_hppa_howto_table) / sizeof (som_hppa_howto_table[0]);
1594 i++)
1595 if (som_hppa_howto_table[i].name != NULL
1596 && strcasecmp (som_hppa_howto_table[i].name, r_name) == 0)
1597 return &som_hppa_howto_table[i];
1598
1599 return NULL;
1600}
1601
e1f000f6
TG		 1602static void
1603som_swap_clock_in (struct som_external_clock *src,
07d6d2b8 1604 struct som_clock *dst)
e1f000f6
TG		 1605{
1606 dst->secs = bfd_getb32 (src->secs);
1607 dst->nanosecs = bfd_getb32 (src->nanosecs);
1608}
1609
1610static void
1611som_swap_clock_out (struct som_clock *src,
07d6d2b8 1612 struct som_external_clock *dst)
e1f000f6
TG		 1613{
1614 bfd_putb32 (src->secs, dst->secs);
1615 bfd_putb32 (src->nanosecs, dst->nanosecs);
1616}
1617
1618static void
1619som_swap_header_in (struct som_external_header *src,
07d6d2b8 1620 struct som_header *dst)
e1f000f6
TG		 1621{
1622 dst->system_id = bfd_getb16 (src->system_id);
1623 dst->a_magic = bfd_getb16 (src->a_magic);
1624 dst->version_id = bfd_getb32 (src->version_id);
1625 som_swap_clock_in (&src->file_time, &dst->file_time);
1626 dst->entry_space = bfd_getb32 (src->entry_space);
1627 dst->entry_subspace = bfd_getb32 (src->entry_subspace);
1628 dst->entry_offset = bfd_getb32 (src->entry_offset);
1629 dst->aux_header_location = bfd_getb32 (src->aux_header_location);
1630 dst->aux_header_size = bfd_getb32 (src->aux_header_size);
1631 dst->som_length = bfd_getb32 (src->som_length);
1632 dst->presumed_dp = bfd_getb32 (src->presumed_dp);
1633 dst->space_location = bfd_getb32 (src->space_location);
1634 dst->space_total = bfd_getb32 (src->space_total);
1635 dst->subspace_location = bfd_getb32 (src->subspace_location);
1636 dst->subspace_total = bfd_getb32 (src->subspace_total);
1637 dst->loader_fixup_location = bfd_getb32 (src->loader_fixup_location);
1638 dst->loader_fixup_total = bfd_getb32 (src->loader_fixup_total);
1639 dst->space_strings_location = bfd_getb32 (src->space_strings_location);
1640 dst->space_strings_size = bfd_getb32 (src->space_strings_size);
1641 dst->init_array_location = bfd_getb32 (src->init_array_location);
1642 dst->init_array_total = bfd_getb32 (src->init_array_total);
1643 dst->compiler_location = bfd_getb32 (src->compiler_location);
1644 dst->compiler_total = bfd_getb32 (src->compiler_total);
1645 dst->symbol_location = bfd_getb32 (src->symbol_location);
1646 dst->symbol_total = bfd_getb32 (src->symbol_total);
1647 dst->fixup_request_location = bfd_getb32 (src->fixup_request_location);
1648 dst->fixup_request_total = bfd_getb32 (src->fixup_request_total);
1649 dst->symbol_strings_location = bfd_getb32 (src->symbol_strings_location);
1650 dst->symbol_strings_size = bfd_getb32 (src->symbol_strings_size);
1651 dst->unloadable_sp_location = bfd_getb32 (src->unloadable_sp_location);
1652 dst->unloadable_sp_size = bfd_getb32 (src->unloadable_sp_size);
1653 dst->checksum = bfd_getb32 (src->checksum);
1654}
1655
1656static void
1657som_swap_header_out (struct som_header *src,
07d6d2b8 1658 struct som_external_header *dst)
e1f000f6
TG		 1659{
1660 bfd_putb16 (src->system_id, dst->system_id);
1661 bfd_putb16 (src->a_magic, dst->a_magic);
1662 bfd_putb32 (src->version_id, dst->version_id);
1663 som_swap_clock_out (&src->file_time, &dst->file_time);
1664 bfd_putb32 (src->entry_space, dst->entry_space);
1665 bfd_putb32 (src->entry_subspace, dst->entry_subspace);
1666 bfd_putb32 (src->entry_offset, dst->entry_offset);
1667 bfd_putb32 (src->aux_header_location, dst->aux_header_location);
1668 bfd_putb32 (src->aux_header_size, dst->aux_header_size);
1669 bfd_putb32 (src->som_length, dst->som_length);
1670 bfd_putb32 (src->presumed_dp, dst->presumed_dp);
1671 bfd_putb32 (src->space_location, dst->space_location);
1672 bfd_putb32 (src->space_total, dst->space_total);
1673 bfd_putb32 (src->subspace_location, dst->subspace_location);
1674 bfd_putb32 (src->subspace_total, dst->subspace_total);
1675 bfd_putb32 (src->loader_fixup_location, dst->loader_fixup_location);
1676 bfd_putb32 (src->loader_fixup_total, dst->loader_fixup_total);
1677 bfd_putb32 (src->space_strings_location, dst->space_strings_location);
1678 bfd_putb32 (src->space_strings_size, dst->space_strings_size);
1679 bfd_putb32 (src->init_array_location, dst->init_array_location);
1680 bfd_putb32 (src->init_array_total, dst->init_array_total);
1681 bfd_putb32 (src->compiler_location, dst->compiler_location);
1682 bfd_putb32 (src->compiler_total, dst->compiler_total);
1683 bfd_putb32 (src->symbol_location, dst->symbol_location);
1684 bfd_putb32 (src->symbol_total, dst->symbol_total);
1685 bfd_putb32 (src->fixup_request_location, dst->fixup_request_location);
1686 bfd_putb32 (src->fixup_request_total, dst->fixup_request_total);
1687 bfd_putb32 (src->symbol_strings_location, dst->symbol_strings_location);
1688 bfd_putb32 (src->symbol_strings_size, dst->symbol_strings_size);
1689 bfd_putb32 (src->unloadable_sp_location, dst->unloadable_sp_location);
1690 bfd_putb32 (src->unloadable_sp_size, dst->unloadable_sp_size);
1691 bfd_putb32 (src->checksum, dst->checksum);
1692}
1693
1694static void
1695som_swap_space_dictionary_in (struct som_external_space_dictionary_record *src,
07d6d2b8 1696 struct som_space_dictionary_record *dst)
e1f000f6
TG		 1697{
1698 unsigned int flags;
1699
1700 dst->name = bfd_getb32 (src->name);
1701 flags = bfd_getb32 (src->flags);
1702 dst->is_loadable = (flags & SOM_SPACE_IS_LOADABLE) != 0;
1703 dst->is_defined = (flags & SOM_SPACE_IS_DEFINED) != 0;
1704 dst->is_private = (flags & SOM_SPACE_IS_PRIVATE) != 0;
1705 dst->has_intermediate_code = (flags & SOM_SPACE_HAS_INTERMEDIATE_CODE) != 0;
1706 dst->is_tspecific = (flags & SOM_SPACE_IS_TSPECIFIC) != 0;
1707 dst->reserved = 0;
1708 dst->sort_key = (flags >> SOM_SPACE_SORT_KEY_SH) & SOM_SPACE_SORT_KEY_MASK;
1709 dst->reserved2 = 0;
1710 dst->space_number = bfd_getb32 (src->space_number);
1711 dst->subspace_index = bfd_getb32 (src->subspace_index);
1712 dst->subspace_quantity = bfd_getb32 (src->subspace_quantity);
1713 dst->loader_fix_index = bfd_getb32 (src->loader_fix_index);
1714 dst->loader_fix_quantity = bfd_getb32 (src->loader_fix_quantity);
1715 dst->init_pointer_index = bfd_getb32 (src->init_pointer_index);
1716 dst->init_pointer_quantity = bfd_getb32 (src->init_pointer_quantity);
1717}
1718
1719static void
1720som_swap_space_dictionary_out (struct som_space_dictionary_record *src,
07d6d2b8 1721 struct som_external_space_dictionary_record *dst)
e1f000f6
TG		 1722{
1723 unsigned int flags;
1724
1725 bfd_putb32 (src->name, dst->name);
1726
1727 flags = 0;
1728 if (src->is_loadable)
1729 flags |= SOM_SPACE_IS_LOADABLE;
1730 if (src->is_defined)
1731 flags |= SOM_SPACE_IS_DEFINED;
1732 if (src->is_private)
1733 flags |= SOM_SPACE_IS_PRIVATE;
1734 if (src->has_intermediate_code)
1735 flags |= SOM_SPACE_HAS_INTERMEDIATE_CODE;
1736 if (src->is_tspecific)
1737 flags |= SOM_SPACE_IS_TSPECIFIC;
1738 flags |= (src->sort_key & SOM_SPACE_SORT_KEY_MASK) << SOM_SPACE_SORT_KEY_SH;
1739 bfd_putb32 (flags, dst->flags);
1740 bfd_putb32 (src->space_number, dst->space_number);
1741 bfd_putb32 (src->subspace_index, dst->subspace_index);
1742 bfd_putb32 (src->subspace_quantity, dst->subspace_quantity);
1743 bfd_putb32 (src->loader_fix_index, dst->loader_fix_index);
1744 bfd_putb32 (src->loader_fix_quantity, dst->loader_fix_quantity);
1745 bfd_putb32 (src->init_pointer_index, dst->init_pointer_index);
1746 bfd_putb32 (src->init_pointer_quantity, dst->init_pointer_quantity);
1747}
1748
1749static void
1750som_swap_subspace_dictionary_in
1751 (struct som_external_subspace_dictionary_record *src,
1752 struct som_subspace_dictionary_record *dst)
1753{
1754 unsigned int flags;
1755 dst->space_index = bfd_getb32 (src->space_index);
1756 flags = bfd_getb32 (src->flags);
1757 dst->access_control_bits = (flags >> SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH)
1758 & SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK;
1759 dst->memory_resident = (flags & SOM_SUBSPACE_MEMORY_RESIDENT) != 0;
1760 dst->dup_common = (flags & SOM_SUBSPACE_DUP_COMMON) != 0;
1761 dst->is_common = (flags & SOM_SUBSPACE_IS_COMMON) != 0;
1762 dst->is_loadable = (flags & SOM_SUBSPACE_IS_LOADABLE) != 0;
1763 dst->quadrant = (flags >> SOM_SUBSPACE_QUADRANT_SH)
1764 & SOM_SUBSPACE_QUADRANT_MASK;
1765 dst->initially_frozen = (flags & SOM_SUBSPACE_INITIALLY_FROZEN) != 0;
1766 dst->is_first = (flags & SOM_SUBSPACE_IS_FIRST) != 0;
1767 dst->code_only = (flags & SOM_SUBSPACE_CODE_ONLY) != 0;
1768 dst->sort_key = (flags >> SOM_SUBSPACE_SORT_KEY_SH)
1769 & SOM_SUBSPACE_SORT_KEY_MASK;
1770 dst->replicate_init = (flags & SOM_SUBSPACE_REPLICATE_INIT) != 0;
1771 dst->continuation = (flags & SOM_SUBSPACE_CONTINUATION) != 0;
1772 dst->is_tspecific = (flags & SOM_SUBSPACE_IS_TSPECIFIC) != 0;
1773 dst->is_comdat = (flags & SOM_SUBSPACE_IS_COMDAT) != 0;
1774 dst->reserved = 0;
1775 dst->file_loc_init_value = bfd_getb32 (src->file_loc_init_value);
1776 dst->initialization_length = bfd_getb32 (src->initialization_length);
1777 dst->subspace_start = bfd_getb32 (src->subspace_start);
1778 dst->subspace_length = bfd_getb32 (src->subspace_length);
1779 dst->alignment = bfd_getb32 (src->alignment);
1780 dst->name = bfd_getb32 (src->name);
1781 dst->fixup_request_index = bfd_getb32 (src->fixup_request_index);
1782 dst->fixup_request_quantity = bfd_getb32 (src->fixup_request_quantity);
1783}
1784
1785static void
1786som_swap_subspace_dictionary_record_out
1787 (struct som_subspace_dictionary_record *src,
1788 struct som_external_subspace_dictionary_record *dst)
1789{
1790 unsigned int flags;
1791
1792 bfd_putb32 (src->space_index, dst->space_index);
1793 flags = (src->access_control_bits & SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK)
1794 << SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH;
1795 if (src->memory_resident)
1796 flags |= SOM_SUBSPACE_MEMORY_RESIDENT;
1797 if (src->dup_common)
1798 flags |= SOM_SUBSPACE_DUP_COMMON;
1799 if (src->is_common)
1800 flags |= SOM_SUBSPACE_IS_COMMON;
1801 if (src->is_loadable)
1802 flags |= SOM_SUBSPACE_IS_LOADABLE;
1803 flags |= (src->quadrant & SOM_SUBSPACE_QUADRANT_MASK)
1804 << SOM_SUBSPACE_QUADRANT_SH;
1805 if (src->initially_frozen)
1806 flags |= SOM_SUBSPACE_INITIALLY_FROZEN;
1807 if (src->is_first)
1808 flags |= SOM_SUBSPACE_IS_FIRST;
1809 if (src->code_only)
1810 flags |= SOM_SUBSPACE_CODE_ONLY;
1811 flags |= (src->sort_key & SOM_SUBSPACE_SORT_KEY_MASK)
1812 << SOM_SUBSPACE_SORT_KEY_SH;
1813 if (src->replicate_init)
1814 flags |= SOM_SUBSPACE_REPLICATE_INIT;
1815 if (src->continuation)
1816 flags |= SOM_SUBSPACE_CONTINUATION;
1817 if (src->is_tspecific)
1818 flags |= SOM_SUBSPACE_IS_TSPECIFIC;
1819 if (src->is_comdat)
1820 flags |= SOM_SUBSPACE_IS_COMDAT;
1821 bfd_putb32 (flags, dst->flags);
1822 bfd_putb32 (src->file_loc_init_value, dst->file_loc_init_value);
1823 bfd_putb32 (src->initialization_length, dst->initialization_length);
1824 bfd_putb32 (src->subspace_start, dst->subspace_start);
1825 bfd_putb32 (src->subspace_length, dst->subspace_length);
1826 bfd_putb32 (src->alignment, dst->alignment);
1827 bfd_putb32 (src->name, dst->name);
1828 bfd_putb32 (src->fixup_request_index, dst->fixup_request_index);
1829 bfd_putb32 (src->fixup_request_quantity, dst->fixup_request_quantity);
1830}
1831
1832static void
1833som_swap_aux_id_in (struct som_external_aux_id *src,
07d6d2b8 1834 struct som_aux_id *dst)
e1f000f6
TG		 1835{
1836 unsigned int flags = bfd_getb32 (src->flags);
1837
1838 dst->mandatory = (flags & SOM_AUX_ID_MANDATORY) != 0;
1839 dst->copy = (flags & SOM_AUX_ID_COPY) != 0;
1840 dst->append = (flags & SOM_AUX_ID_APPEND) != 0;
1841 dst->ignore = (flags & SOM_AUX_ID_IGNORE) != 0;
1842 dst->type = (flags >> SOM_AUX_ID_TYPE_SH) & SOM_AUX_ID_TYPE_MASK;
1843 dst->length = bfd_getb32 (src->length);
1844}
1845
1846static void
1847som_swap_aux_id_out (struct som_aux_id *src,
07d6d2b8 1848 struct som_external_aux_id *dst)
e1f000f6
TG		 1849{
1850 unsigned int flags = 0;
1851
1852 if (src->mandatory)
1853 flags |= SOM_AUX_ID_MANDATORY;
1854 if (src->copy)
1855 flags |= SOM_AUX_ID_COPY;
1856 if (src->append)
1857 flags |= SOM_AUX_ID_APPEND;
1858 if (src->ignore)
1859 flags |= SOM_AUX_ID_IGNORE;
1860 flags |= (src->type & SOM_AUX_ID_TYPE_MASK) << SOM_AUX_ID_TYPE_SH;
1861 bfd_putb32 (flags, dst->flags);
1862 bfd_putb32 (src->length, dst->length);
1863}
1864
1865static void
1866som_swap_string_auxhdr_out (struct som_string_auxhdr *src,
07d6d2b8 1867 struct som_external_string_auxhdr *dst)
e1f000f6
TG		 1868{
1869 som_swap_aux_id_out (&src->header_id, &dst->header_id);
1870 bfd_putb32 (src->string_length, dst->string_length);
1871}
1872
1873static void
1874som_swap_compilation_unit_out (struct som_compilation_unit *src,
07d6d2b8 1875 struct som_external_compilation_unit *dst)
e1f000f6
TG		 1876{
1877 bfd_putb32 (src->name.strx, dst->name);
1878 bfd_putb32 (src->language_name.strx, dst->language_name);
1879 bfd_putb32 (src->product_id.strx, dst->product_id);
1880 bfd_putb32 (src->version_id.strx, dst->version_id);
1881 bfd_putb32 (src->flags, dst->flags);
1882 som_swap_clock_out (&src->compile_time, &dst->compile_time);
1883 som_swap_clock_out (&src->source_time, &dst->source_time);
1884}
1885
1886static void
1887som_swap_exec_auxhdr_in (struct som_external_exec_auxhdr *src,
07d6d2b8 1888 struct som_exec_auxhdr *dst)
e1f000f6
TG		 1889{
1890 som_swap_aux_id_in (&src->som_auxhdr, &dst->som_auxhdr);
1891 dst->exec_tsize = bfd_getb32 (src->exec_tsize);
1892 dst->exec_tmem = bfd_getb32 (src->exec_tmem);
1893 dst->exec_tfile = bfd_getb32 (src->exec_tfile);
1894 dst->exec_dsize = bfd_getb32 (src->exec_dsize);
1895 dst->exec_dmem = bfd_getb32 (src->exec_dmem);
1896 dst->exec_dfile = bfd_getb32 (src->exec_dfile);
1897 dst->exec_bsize = bfd_getb32 (src->exec_bsize);
1898 dst->exec_entry = bfd_getb32 (src->exec_entry);
1899 dst->exec_flags = bfd_getb32 (src->exec_flags);
1900 dst->exec_bfill = bfd_getb32 (src->exec_bfill);
1901}
1902
1903static void
1904som_swap_exec_auxhdr_out (struct som_exec_auxhdr *src,
07d6d2b8 1905 struct som_external_exec_auxhdr *dst)
e1f000f6
TG		 1906{
1907 som_swap_aux_id_out (&src->som_auxhdr, &dst->som_auxhdr);
1908 bfd_putb32 (src->exec_tsize, dst->exec_tsize);
1909 bfd_putb32 (src->exec_tmem, dst->exec_tmem);
1910 bfd_putb32 (src->exec_tfile, dst->exec_tfile);
1911 bfd_putb32 (src->exec_dsize, dst->exec_dsize);
1912 bfd_putb32 (src->exec_dmem, dst->exec_dmem);
1913 bfd_putb32 (src->exec_dfile, dst->exec_dfile);
1914 bfd_putb32 (src->exec_bsize, dst->exec_bsize);
1915 bfd_putb32 (src->exec_entry, dst->exec_entry);
1916 bfd_putb32 (src->exec_flags, dst->exec_flags);
1917 bfd_putb32 (src->exec_bfill, dst->exec_bfill);
1918}
1919
1920static void
1921som_swap_lst_header_in (struct som_external_lst_header *src,
07d6d2b8 1922 struct som_lst_header *dst)
e1f000f6
TG		 1923{
1924 dst->system_id = bfd_getb16 (src->system_id);
1925 dst->a_magic = bfd_getb16 (src->a_magic);
1926 dst->version_id = bfd_getb32 (src->version_id);
1927 som_swap_clock_in (&src->file_time, &dst->file_time);
1928 dst->hash_loc = bfd_getb32 (src->hash_loc);
1929 dst->hash_size = bfd_getb32 (src->hash_size);
1930 dst->module_count = bfd_getb32 (src->module_count);
1931 dst->module_limit = bfd_getb32 (src->module_limit);
1932 dst->dir_loc = bfd_getb32 (src->dir_loc);
1933 dst->export_loc = bfd_getb32 (src->export_loc);
1934 dst->export_count = bfd_getb32 (src->export_count);
1935 dst->import_loc = bfd_getb32 (src->import_loc);
1936 dst->aux_loc = bfd_getb32 (src->aux_loc);
1937 dst->aux_size = bfd_getb32 (src->aux_size);
1938 dst->string_loc = bfd_getb32 (src->string_loc);
1939 dst->string_size = bfd_getb32 (src->string_size);
1940 dst->free_list = bfd_getb32 (src->free_list);
1941 dst->file_end = bfd_getb32 (src->file_end);
1942 dst->checksum = bfd_getb32 (src->checksum);
1943}
1944
252b5132
RH		 1945/* Perform some initialization for an object. Save results of this
1946 initialization in the BFD. */
1947
1948static const bfd_target *
116c20d2 1949som_object_setup (bfd *abfd,
e1f000f6 1950 struct som_header *file_hdrp,
116c20d2
NC		 1951 struct som_exec_auxhdr *aux_hdrp,
1952 unsigned long current_offset)
252b5132
RH		 1953{
1954 asection *section;
252b5132
RH		 1955
1956 /* som_mkobject will set bfd_error if som_mkobject fails. */
82e51918 1957 if (! som_mkobject (abfd))
116c20d2 1958 return NULL;
252b5132
RH		 1959
1960 /* Set BFD flags based on what information is available in the SOM. */
1961 abfd->flags = BFD_NO_FLAGS;
1962 if (file_hdrp->symbol_total)
1963 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1964
1965 switch (file_hdrp->a_magic)
1966 {
1967 case DEMAND_MAGIC:
1968 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1969 break;
1970 case SHARE_MAGIC:
1971 abfd->flags |= (WP_TEXT | EXEC_P);
1972 break;
1973 case EXEC_MAGIC:
1974 abfd->flags |= (EXEC_P);
1975 break;
1976 case RELOC_MAGIC:
1977 abfd->flags |= HAS_RELOC;
1978 break;
1979#ifdef SHL_MAGIC
1980 case SHL_MAGIC:
1981#endif
1982#ifdef DL_MAGIC
1983 case DL_MAGIC:
1984#endif
1985 abfd->flags |= DYNAMIC;
1986 break;
1987
1988 default:
1989 break;
1990 }
1991
e6dc21b6
MM		 1992 /* Save the auxiliary header. */
1993 obj_som_exec_hdr (abfd) = aux_hdrp;
1994
252b5132 1995 /* Allocate space to hold the saved exec header information. */
116c20d2 1996 obj_som_exec_data (abfd) = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
252b5132
RH		 1997 if (obj_som_exec_data (abfd) == NULL)
1998 return NULL;
1999
2000 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
2001
2002 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
2003 apparently the latest HPUX linker is using NEW_VERSION_ID now.
2004
2005 It's about time, OSF has used the new id since at least 1992;
2006 HPUX didn't start till nearly 1995!.
6fa957a9 2007
e6dc21b6
MM		 2008 The new approach examines the entry field for an executable. If
2009 it is not 4-byte aligned then it's not a proper code address and
2010 we guess it's really the executable flags. For a main program,
2011 we also consider zero to be indicative of a buggy linker, since
2012 that is not a valid entry point. The entry point for a shared
2013 library, however, can be zero so we do not consider that to be
2014 indicative of a buggy linker. */
2015 if (aux_hdrp)
252b5132 2016 {
e6dc21b6 2017 int found = 0;
5198ba8b 2018
e6dc21b6
MM		 2019 for (section = abfd->sections; section; section = section->next)
2020 {
2021 bfd_vma entry;
2022
2023 if ((section->flags & SEC_CODE) == 0)
2024 continue;
2025 entry = aux_hdrp->exec_entry + aux_hdrp->exec_tmem;
2026 if (entry >= section->vma
2027 && entry < section->vma + section->size)
2028 found = 1;
2029 }
2030 if ((aux_hdrp->exec_entry == 0 && !(abfd->flags & DYNAMIC))
2031 || (aux_hdrp->exec_entry & 0x3) != 0
2032 || ! found)
2033 {
ed48ec2e 2034 abfd->start_address = aux_hdrp->exec_flags;
e6dc21b6
MM		 2035 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
2036 }
2037 else
2038 {
ed48ec2e 2039 abfd->start_address = aux_hdrp->exec_entry + current_offset;
e6dc21b6
MM		 2040 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
2041 }
252b5132
RH		 2042 }
2043
17617495
JL		 2044 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
2045
252b5132 2046 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
ed48ec2e 2047 abfd->symcount = file_hdrp->symbol_total;
252b5132 2048
6fa957a9 2049 /* Initialize the saved symbol table and string table to NULL.
252b5132
RH		 2050 Save important offsets and sizes from the SOM header into
2051 the BFD. */
116c20d2
NC		 2052 obj_som_stringtab (abfd) = NULL;
2053 obj_som_symtab (abfd) = NULL;
252b5132
RH		 2054 obj_som_sorted_syms (abfd) = NULL;
2055 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
2056 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
2057 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
2058 + current_offset);
2059 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
2060 + current_offset);
2061 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
2062
2063 return abfd->xvec;
2064}
2065
2066/* Convert all of the space and subspace info into BFD sections. Each space
2067 contains a number of subspaces, which in turn describe the mapping between
2068 regions of the exec file, and the address space that the program runs in.
2069 BFD sections which correspond to spaces will overlap the sections for the
2070 associated subspaces. */
2071
b34976b6 2072static bfd_boolean
116c20d2 2073setup_sections (bfd *abfd,
e1f000f6 2074 struct som_header *file_hdr,
116c20d2 2075 unsigned long current_offset)
252b5132 2076{
e5af2160 2077 char *space_strings = NULL;
252b5132
RH		 2078 unsigned int space_index, i;
2079 unsigned int total_subspaces = 0;
21da9f89
NC		 2080 asection **subspace_sections = NULL;
2081 asection *section;
dc810e39 2082 bfd_size_type amt;
252b5132 2083
7eae7d22 2084 /* First, read in space names. */
dc810e39 2085 amt = file_hdr->space_strings_size;
e5af2160
AM		 2086 if (amt == (bfd_size_type) -1)
2087 {
2088 bfd_set_error (bfd_error_no_memory);
2089 goto error_return;
2090 }
d19237d9
NC		 2091 space_strings = bfd_malloc (amt + 1);
2092 if (space_strings == NULL && amt != 0)
252b5132
RH		 2093 goto error_return;
2094
6fa957a9 2095 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
dc810e39 2096 SEEK_SET) != 0)
252b5132 2097 goto error_return;
dc810e39 2098 if (bfd_bread (space_strings, amt, abfd) != amt)
252b5132 2099 goto error_return;
d19237d9
NC		 2100 /* Make sure that the string table is NUL terminated. */
2101 space_strings[amt] = 0;
252b5132 2102
7eae7d22 2103 /* Loop over all of the space dictionaries, building up sections. */
252b5132
RH		 2104 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
2105 {
e1f000f6
TG		 2106 struct som_space_dictionary_record space;
2107 struct som_external_space_dictionary_record ext_space;
2108 char *space_name;
2109 struct som_external_subspace_dictionary_record ext_subspace;
351e2b5a 2110 struct som_subspace_dictionary_record subspace, save_subspace;
5198ba8b 2111 unsigned int subspace_index;
252b5132 2112 asection *space_asect;
404ed0cf 2113 bfd_size_type space_size = 0;
252b5132
RH		 2114 char *newname;
2115
7eae7d22 2116 /* Read the space dictionary element. */
252b5132
RH		 2117 if (bfd_seek (abfd,
2118 (current_offset + file_hdr->space_location
e1f000f6 2119 + space_index * sizeof (ext_space)),
dc810e39 2120 SEEK_SET) != 0)
252b5132 2121 goto error_return;
e1f000f6
TG		 2122 amt = sizeof ext_space;
2123 if (bfd_bread (&ext_space, amt, abfd) != amt)
252b5132
RH		 2124 goto error_return;
2125
e1f000f6
TG		 2126 som_swap_space_dictionary_in (&ext_space, &space);
2127
7eae7d22 2128 /* Setup the space name string. */
d19237d9
NC		 2129 if (space.name >= file_hdr->space_strings_size)
2130 goto error_return;
2131
e1f000f6 2132 space_name = space.name + space_strings;
252b5132 2133
7eae7d22 2134 /* Make a section out of it. */
e1f000f6 2135 amt = strlen (space_name) + 1;
dc810e39 2136 newname = bfd_alloc (abfd, amt);
252b5132
RH		 2137 if (!newname)
2138 goto error_return;
e1f000f6 2139 strcpy (newname, space_name);
6fa957a9 2140
252b5132
RH		 2141 space_asect = bfd_make_section_anyway (abfd, newname);
2142 if (!space_asect)
2143 goto error_return;
2144
7eae7d22 2145 if (space.is_loadable == 0)
252b5132
RH		 2146 space_asect->flags |= SEC_DEBUGGING;
2147
2148 /* Set up all the attributes for the space. */
82e51918
AM		 2149 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
2150 space.is_private, space.sort_key,
2151 space.space_number))
252b5132
RH		 2152 goto error_return;
2153
2154 /* If the space has no subspaces, then we're done. */
2155 if (space.subspace_quantity == 0)
2156 continue;
2157
7eae7d22 2158 /* Now, read in the first subspace for this space. */
252b5132
RH		 2159 if (bfd_seek (abfd,
2160 (current_offset + file_hdr->subspace_location
e1f000f6 2161 + space.subspace_index * sizeof ext_subspace),
dc810e39 2162 SEEK_SET) != 0)
252b5132 2163 goto error_return;
e1f000f6
TG		 2164 amt = sizeof ext_subspace;
2165 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
252b5132 2166 goto error_return;
7eae7d22 2167 /* Seek back to the start of the subspaces for loop below. */
252b5132
RH		 2168 if (bfd_seek (abfd,
2169 (current_offset + file_hdr->subspace_location
e1f000f6 2170 + space.subspace_index * sizeof ext_subspace),
dc810e39 2171 SEEK_SET) != 0)
252b5132
RH		 2172 goto error_return;
2173
e1f000f6
TG		 2174 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2175
7eae7d22 2176 /* Setup the start address and file loc from the first subspace
b34976b6 2177 record. */
252b5132
RH		 2178 space_asect->vma = subspace.subspace_start;
2179 space_asect->filepos = subspace.file_loc_init_value + current_offset;
a99cf92b 2180 space_asect->alignment_power = exact_log2 (subspace.alignment);
dc810e39 2181 if (space_asect->alignment_power == (unsigned) -1)
252b5132
RH		 2182 goto error_return;
2183
2184 /* Initialize save_subspace so we can reliably determine if this
2185 loop placed any useful values into it. */
351e2b5a 2186 memset (&save_subspace, 0, sizeof (save_subspace));
252b5132 2187
7eae7d22 2188 /* Loop over the rest of the subspaces, building up more sections. */
252b5132
RH		 2189 for (subspace_index = 0; subspace_index < space.subspace_quantity;
2190 subspace_index++)
2191 {
2192 asection *subspace_asect;
07d6d2b8 2193 char *subspace_name;
252b5132 2194
7eae7d22 2195 /* Read in the next subspace. */
e1f000f6
TG		 2196 amt = sizeof ext_subspace;
2197 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
252b5132
RH		 2198 goto error_return;
2199
07d6d2b8 2200 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
e1f000f6 2201
7eae7d22 2202 /* Setup the subspace name string. */
e1f000f6 2203 subspace_name = subspace.name + space_strings;
252b5132 2204
e1f000f6 2205 amt = strlen (subspace_name) + 1;
dc810e39 2206 newname = bfd_alloc (abfd, amt);
252b5132
RH		 2207 if (!newname)
2208 goto error_return;
e1f000f6 2209 strcpy (newname, subspace_name);
252b5132 2210
7eae7d22 2211 /* Make a section out of this subspace. */
252b5132
RH		 2212 subspace_asect = bfd_make_section_anyway (abfd, newname);
2213 if (!subspace_asect)
2214 goto error_return;
2215
2216 /* Store private information about the section. */
82e51918
AM		 2217 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
2218 subspace.access_control_bits,
2219 subspace.sort_key,
351e2b5a
DA		 2220 subspace.quadrant,
2221 subspace.is_comdat,
2222 subspace.is_common,
2223 subspace.dup_common))
252b5132
RH		 2224 goto error_return;
2225
6fa957a9 2226 /* Keep an easy mapping between subspaces and sections.
252b5132
RH		 2227 Note we do not necessarily read the subspaces in the
2228 same order in which they appear in the object file.
2229
2230 So to make the target index come out correctly, we
2231 store the location of the subspace header in target
2232 index, then sort using the location of the subspace
2233 header as the key. Then we can assign correct
2234 subspace indices. */
2235 total_subspaces++;
2236 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2237
2238 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2239 by the access_control_bits in the subspace header. */
2240 switch (subspace.access_control_bits >> 4)
2241 {
6fa957a9 2242 /* Readonly data. */
252b5132
RH		 2243 case 0x0:
2244 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2245 break;
2246
6fa957a9 2247 /* Normal data. */
252b5132
RH		 2248 case 0x1:
2249 subspace_asect->flags |= SEC_DATA;
2250 break;
2251
2252 /* Readonly code and the gateways.
2253 Gateways have other attributes which do not map
2254 into anything BFD knows about. */
2255 case 0x2:
2256 case 0x4:
2257 case 0x5:
2258 case 0x6:
2259 case 0x7:
2260 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2261 break;
2262
2263 /* dynamic (writable) code. */
2264 case 0x3:
2265 subspace_asect->flags |= SEC_CODE;
2266 break;
2267 }
6fa957a9 2268
351e2b5a
DA		 2269 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
2270 subspace_asect->flags |= SEC_LINK_ONCE;
2271
2272 if (subspace.subspace_length > 0)
252b5132
RH		 2273 subspace_asect->flags |= SEC_HAS_CONTENTS;
2274
2275 if (subspace.is_loadable)
2276 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2277 else
2278 subspace_asect->flags |= SEC_DEBUGGING;
2279
2280 if (subspace.code_only)
2281 subspace_asect->flags |= SEC_CODE;
2282
2283 /* Both file_loc_init_value and initialization_length will
2284 be zero for a BSS like subspace. */
2285 if (subspace.file_loc_init_value == 0
2286 && subspace.initialization_length == 0)
2287 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2288
2289 /* This subspace has relocations.
2290 The fixup_request_quantity is a byte count for the number of
2291 entries in the relocation stream; it is not the actual number
2292 of relocations in the subspace. */
2293 if (subspace.fixup_request_quantity != 0)
2294 {
2295 subspace_asect->flags |= SEC_RELOC;
2296 subspace_asect->rel_filepos = subspace.fixup_request_index;
2297 som_section_data (subspace_asect)->reloc_size
2298 = subspace.fixup_request_quantity;
6fa957a9 2299 /* We can not determine this yet. When we read in the
252b5132 2300 relocation table the correct value will be filled in. */
dc810e39 2301 subspace_asect->reloc_count = (unsigned) -1;
252b5132
RH		 2302 }
2303
2304 /* Update save_subspace if appropriate. */
2305 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2306 save_subspace = subspace;
2307
2308 subspace_asect->vma = subspace.subspace_start;
eea6121a 2309 subspace_asect->size = subspace.subspace_length;
252b5132
RH		 2310 subspace_asect->filepos = (subspace.file_loc_init_value
2311 + current_offset);
a99cf92b 2312 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
dc810e39 2313 if (subspace_asect->alignment_power == (unsigned) -1)
252b5132 2314 goto error_return;
404ed0cf
DA		 2315
2316 /* Keep track of the accumulated sizes of the sections. */
2317 space_size += subspace.subspace_length;
252b5132
RH		 2318 }
2319
2320 /* This can happen for a .o which defines symbols in otherwise
b34976b6 2321 empty subspaces. */
252b5132 2322 if (!save_subspace.file_loc_init_value)
eea6121a 2323 space_asect->size = 0;
252b5132 2324 else
404ed0cf
DA		 2325 {
2326 if (file_hdr->a_magic != RELOC_MAGIC)
2327 {
2328 /* Setup the size for the space section based upon the info
2329 in the last subspace of the space. */
2330 space_asect->size = (save_subspace.subspace_start
2331 - space_asect->vma
2332 + save_subspace.subspace_length);
2333 }
2334 else
2335 {
2336 /* The subspace_start field is not initialised in relocatable
07d6d2b8 2337 only objects, so it cannot be used for length calculations.
404ed0cf
DA		 2338 Instead we use the space_size value which we have been
2339 accumulating. This isn't an accurate estimate since it
2340 ignores alignment and ordering issues. */
2341 space_asect->size = space_size;
2342 }
2343 }
252b5132
RH		 2344 }
2345 /* Now that we've read in all the subspace records, we need to assign
2346 a target index to each subspace. */
e5af2160 2347 subspace_sections = bfd_malloc2 (total_subspaces, sizeof (asection *));
252b5132
RH		 2348 if (subspace_sections == NULL)
2349 goto error_return;
2350
2351 for (i = 0, section = abfd->sections; section; section = section->next)
2352 {
2353 if (!som_is_subspace (section))
2354 continue;
2355
2356 subspace_sections[i] = section;
2357 i++;
2358 }
2359 qsort (subspace_sections, total_subspaces,
2360 sizeof (asection *), compare_subspaces);
6fa957a9 2361
252b5132
RH		 2362 /* subspace_sections is now sorted in the order in which the subspaces
2363 appear in the object file. Assign an index to each one now. */
2364 for (i = 0; i < total_subspaces; i++)
2365 subspace_sections[i]->target_index = i;
2366
2367 if (space_strings != NULL)
2368 free (space_strings);
2369
2370 if (subspace_sections != NULL)
2371 free (subspace_sections);
2372
b34976b6 2373 return TRUE;
252b5132
RH		 2374
2375 error_return:
2376 if (space_strings != NULL)
2377 free (space_strings);
2378
2379 if (subspace_sections != NULL)
2380 free (subspace_sections);
b34976b6 2381 return FALSE;
252b5132
RH		 2382}
2383
e1f000f6 2384
252b5132
RH		 2385/* Read in a SOM object and make it into a BFD. */
2386
2387static const bfd_target *
116c20d2 2388som_object_p (bfd *abfd)
252b5132 2389{
e1f000f6
TG		 2390 struct som_external_header ext_file_hdr;
2391 struct som_header file_hdr;
e6dc21b6 2392 struct som_exec_auxhdr *aux_hdr_ptr = NULL;
252b5132 2393 unsigned long current_offset = 0;
e1f000f6
TG		 2394 struct som_external_lst_header ext_lst_header;
2395 struct som_external_som_entry ext_som_entry;
dc810e39 2396 bfd_size_type amt;
e1f000f6
TG		 2397 unsigned int loc;
2398#define ENTRY_SIZE sizeof (struct som_external_som_entry)
252b5132 2399
e1f000f6
TG		 2400 amt = sizeof (struct som_external_header);
2401 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
252b5132
RH		 2402 {
2403 if (bfd_get_error () != bfd_error_system_call)
2404 bfd_set_error (bfd_error_wrong_format);
116c20d2 2405 return NULL;
252b5132
RH		 2406 }
2407
e1f000f6
TG		 2408 som_swap_header_in (&ext_file_hdr, &file_hdr);
2409
252b5132
RH		 2410 if (!_PA_RISC_ID (file_hdr.system_id))
2411 {
2412 bfd_set_error (bfd_error_wrong_format);
116c20d2 2413 return NULL;
252b5132
RH		 2414 }
2415
2416 switch (file_hdr.a_magic)
2417 {
2418 case RELOC_MAGIC:
2419 case EXEC_MAGIC:
2420 case SHARE_MAGIC:
2421 case DEMAND_MAGIC:
252b5132 2422 case DL_MAGIC:
252b5132 2423 case SHL_MAGIC:
252b5132
RH		 2424#ifdef SHARED_MAGIC_CNX
2425 case SHARED_MAGIC_CNX:
2426#endif
2427 break;
2428
252b5132 2429 case EXECLIBMAGIC:
7eae7d22 2430 /* Read the lst header and determine where the SOM directory begins. */
252b5132 2431
dc810e39 2432 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
7eae7d22
KH		 2433 {
2434 if (bfd_get_error () != bfd_error_system_call)
252b5132 2435 bfd_set_error (bfd_error_wrong_format);
116c20d2 2436 return NULL;
7eae7d22 2437 }
252b5132 2438
e1f000f6
TG		 2439 amt = sizeof (struct som_external_lst_header);
2440 if (bfd_bread (&ext_lst_header, amt, abfd) != amt)
7eae7d22
KH		 2441 {
2442 if (bfd_get_error () != bfd_error_system_call)
252b5132 2443 bfd_set_error (bfd_error_wrong_format);
116c20d2 2444 return NULL;
7eae7d22 2445 }
252b5132 2446
7eae7d22 2447 /* Position to and read the first directory entry. */
e1f000f6
TG		 2448 loc = bfd_getb32 (ext_lst_header.dir_loc);
2449 if (bfd_seek (abfd, loc, SEEK_SET) != 0)
7eae7d22
KH		 2450 {
2451 if (bfd_get_error () != bfd_error_system_call)
252b5132 2452 bfd_set_error (bfd_error_wrong_format);
116c20d2 2453 return NULL;
7eae7d22 2454 }
252b5132 2455
dc810e39 2456 amt = ENTRY_SIZE;
e1f000f6 2457 if (bfd_bread (&ext_som_entry, amt, abfd) != amt)
7eae7d22
KH		 2458 {
2459 if (bfd_get_error () != bfd_error_system_call)
252b5132 2460 bfd_set_error (bfd_error_wrong_format);
116c20d2 2461 return NULL;
7eae7d22 2462 }
252b5132 2463
7eae7d22 2464 /* Now position to the first SOM. */
e1f000f6
TG		 2465 current_offset = bfd_getb32 (ext_som_entry.location);
2466 if (bfd_seek (abfd, current_offset, SEEK_SET) != 0)
7eae7d22
KH		 2467 {
2468 if (bfd_get_error () != bfd_error_system_call)
252b5132 2469 bfd_set_error (bfd_error_wrong_format);
116c20d2 2470 return NULL;
7eae7d22 2471 }
252b5132 2472
7eae7d22 2473 /* And finally, re-read the som header. */
e1f000f6
TG		 2474 amt = sizeof (struct som_external_header);
2475 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
7eae7d22
KH		 2476 {
2477 if (bfd_get_error () != bfd_error_system_call)
252b5132 2478 bfd_set_error (bfd_error_wrong_format);
116c20d2 2479 return NULL;
7eae7d22 2480 }
252b5132 2481
e1f000f6
TG		 2482 som_swap_header_in (&ext_file_hdr, &file_hdr);
2483
252b5132 2484 break;
252b5132
RH		 2485
2486 default:
2487 bfd_set_error (bfd_error_wrong_format);
116c20d2 2488 return NULL;
252b5132
RH		 2489 }
2490
e1f000f6 2491 if (file_hdr.version_id != OLD_VERSION_ID
252b5132
RH		 2492 && file_hdr.version_id != NEW_VERSION_ID)
2493 {
2494 bfd_set_error (bfd_error_wrong_format);
116c20d2 2495 return NULL;
252b5132
RH		 2496 }
2497
2498 /* If the aux_header_size field in the file header is zero, then this
2499 object is an incomplete executable (a .o file). Do not try to read
2500 a non-existant auxiliary header. */
252b5132
RH		 2501 if (file_hdr.aux_header_size != 0)
2502 {
e1f000f6
TG		 2503 struct som_external_exec_auxhdr ext_exec_auxhdr;
2504
68ffbac6 2505 aux_hdr_ptr = bfd_zalloc (abfd,
e6dc21b6
MM		 2506 (bfd_size_type) sizeof (*aux_hdr_ptr));
2507 if (aux_hdr_ptr == NULL)
2508 return NULL;
e1f000f6
TG		 2509 amt = sizeof (struct som_external_exec_auxhdr);
2510 if (bfd_bread (&ext_exec_auxhdr, amt, abfd) != amt)
252b5132
RH		 2511 {
2512 if (bfd_get_error () != bfd_error_system_call)
2513 bfd_set_error (bfd_error_wrong_format);
116c20d2 2514 return NULL;
252b5132 2515 }
e1f000f6 2516 som_swap_exec_auxhdr_in (&ext_exec_auxhdr, aux_hdr_ptr);
252b5132
RH		 2517 }
2518
2519 if (!setup_sections (abfd, &file_hdr, current_offset))
2520 {
2521 /* setup_sections does not bubble up a bfd error code. */
2522 bfd_set_error (bfd_error_bad_value);
116c20d2 2523 return NULL;
252b5132
RH		 2524 }
2525
2526 /* This appears to be a valid SOM object. Do some initialization. */
e6dc21b6 2527 return som_object_setup (abfd, &file_hdr, aux_hdr_ptr, current_offset);
252b5132
RH		 2528}
2529
2530/* Create a SOM object. */
2531
b34976b6 2532static bfd_boolean
116c20d2 2533som_mkobject (bfd *abfd)
252b5132
RH		 2534{
2535 /* Allocate memory to hold backend information. */
116c20d2 2536 abfd->tdata.som_data = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
252b5132 2537 if (abfd->tdata.som_data == NULL)
b34976b6
AM		 2538 return FALSE;
2539 return TRUE;
252b5132
RH		 2540}
2541
2542/* Initialize some information in the file header. This routine makes
2543 not attempt at doing the right thing for a full executable; it
2544 is only meant to handle relocatable objects. */
2545
b34976b6 2546static bfd_boolean
116c20d2 2547som_prep_headers (bfd *abfd)
252b5132 2548{
e1f000f6 2549 struct som_header *file_hdr;
252b5132 2550 asection *section;
e1f000f6 2551 bfd_size_type amt = sizeof (struct som_header);
252b5132
RH		 2552
2553 /* Make and attach a file header to the BFD. */
116c20d2 2554 file_hdr = bfd_zalloc (abfd, amt);
252b5132 2555 if (file_hdr == NULL)
b34976b6 2556 return FALSE;
252b5132
RH		 2557 obj_som_file_hdr (abfd) = file_hdr;
2558
2559 if (abfd->flags & (EXEC_P | DYNAMIC))
2560 {
252b5132 2561 /* Make and attach an exec header to the BFD. */
dc810e39 2562 amt = sizeof (struct som_exec_auxhdr);
116c20d2 2563 obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
252b5132 2564 if (obj_som_exec_hdr (abfd) == NULL)
b34976b6 2565 return FALSE;
252b5132
RH		 2566
2567 if (abfd->flags & D_PAGED)
2568 file_hdr->a_magic = DEMAND_MAGIC;
2569 else if (abfd->flags & WP_TEXT)
2570 file_hdr->a_magic = SHARE_MAGIC;
2571#ifdef SHL_MAGIC
2572 else if (abfd->flags & DYNAMIC)
2573 file_hdr->a_magic = SHL_MAGIC;
2574#endif
2575 else
2576 file_hdr->a_magic = EXEC_MAGIC;
2577 }
2578 else
2579 file_hdr->a_magic = RELOC_MAGIC;
2580
252b5132
RH		 2581 /* These fields are optional, and embedding timestamps is not always
2582 a wise thing to do, it makes comparing objects during a multi-stage
2583 bootstrap difficult. */
2584 file_hdr->file_time.secs = 0;
6fa957a9 2585 file_hdr->file_time.nanosecs = 0;
252b5132
RH		 2586
2587 file_hdr->entry_space = 0;
2588 file_hdr->entry_subspace = 0;
2589 file_hdr->entry_offset = 0;
2590 file_hdr->presumed_dp = 0;
2591
2592 /* Now iterate over the sections translating information from
2593 BFD sections to SOM spaces/subspaces. */
252b5132
RH		 2594 for (section = abfd->sections; section != NULL; section = section->next)
2595 {
2596 /* Ignore anything which has not been marked as a space or
2597 subspace. */
2598 if (!som_is_space (section) && !som_is_subspace (section))
2599 continue;
6fa957a9 2600
252b5132
RH		 2601 if (som_is_space (section))
2602 {
2603 /* Allocate space for the space dictionary. */
e1f000f6 2604 amt = sizeof (struct som_space_dictionary_record);
116c20d2 2605 som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
252b5132 2606 if (som_section_data (section)->space_dict == NULL)
b34976b6 2607 return FALSE;
252b5132
RH		 2608 /* Set space attributes. Note most attributes of SOM spaces
2609 are set based on the subspaces it contains. */
2610 som_section_data (section)->space_dict->loader_fix_index = -1;
2611 som_section_data (section)->space_dict->init_pointer_index = -1;
2612
2613 /* Set more attributes that were stuffed away in private data. */
6fa957a9 2614 som_section_data (section)->space_dict->sort_key =
252b5132 2615 som_section_data (section)->copy_data->sort_key;
6fa957a9 2616 som_section_data (section)->space_dict->is_defined =
252b5132 2617 som_section_data (section)->copy_data->is_defined;
6fa957a9 2618 som_section_data (section)->space_dict->is_private =
252b5132
RH		 2619 som_section_data (section)->copy_data->is_private;
2620 som_section_data (section)->space_dict->space_number =
2621 som_section_data (section)->copy_data->space_number;
2622 }
2623 else
2624 {
2625 /* Allocate space for the subspace dictionary. */
351e2b5a 2626 amt = sizeof (struct som_subspace_dictionary_record);
116c20d2 2627 som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
252b5132 2628 if (som_section_data (section)->subspace_dict == NULL)
b34976b6 2629 return FALSE;
252b5132
RH		 2630
2631 /* Set subspace attributes. Basic stuff is done here, additional
2632 attributes are filled in later as more information becomes
2633 available. */
252b5132
RH		 2634 if (section->flags & SEC_ALLOC)
2635 som_section_data (section)->subspace_dict->is_loadable = 1;
2636
2637 if (section->flags & SEC_CODE)
2638 som_section_data (section)->subspace_dict->code_only = 1;
2639
6fa957a9 2640 som_section_data (section)->subspace_dict->subspace_start =
252b5132
RH		 2641 section->vma;
2642 som_section_data (section)->subspace_dict->subspace_length =
eea6121a 2643 section->size;
252b5132 2644 som_section_data (section)->subspace_dict->initialization_length =
eea6121a 2645 section->size;
6fa957a9 2646 som_section_data (section)->subspace_dict->alignment =
252b5132
RH		 2647 1 << section->alignment_power;
2648
2649 /* Set more attributes that were stuffed away in private data. */
2650 som_section_data (section)->subspace_dict->sort_key =
2651 som_section_data (section)->copy_data->sort_key;
2652 som_section_data (section)->subspace_dict->access_control_bits =
2653 som_section_data (section)->copy_data->access_control_bits;
2654 som_section_data (section)->subspace_dict->quadrant =
2655 som_section_data (section)->copy_data->quadrant;
351e2b5a
DA		 2656 som_section_data (section)->subspace_dict->is_comdat =
2657 som_section_data (section)->copy_data->is_comdat;
2658 som_section_data (section)->subspace_dict->is_common =
2659 som_section_data (section)->copy_data->is_common;
2660 som_section_data (section)->subspace_dict->dup_common =
2661 som_section_data (section)->copy_data->dup_common;
252b5132
RH		 2662 }
2663 }
b34976b6 2664 return TRUE;
252b5132
RH		 2665}
2666
b34976b6 2667/* Return TRUE if the given section is a SOM space, FALSE otherwise. */
252b5132 2668
b34976b6 2669static bfd_boolean
116c20d2 2670som_is_space (asection *section)
252b5132
RH		 2671{
2672 /* If no copy data is available, then it's neither a space nor a
2673 subspace. */
2674 if (som_section_data (section)->copy_data == NULL)
b34976b6 2675 return FALSE;
252b5132
RH		 2676
2677 /* If the containing space isn't the same as the given section,
2678 then this isn't a space. */
2679 if (som_section_data (section)->copy_data->container != section
2680 && (som_section_data (section)->copy_data->container->output_section
2681 != section))
b34976b6 2682 return FALSE;
252b5132
RH		 2683
2684 /* OK. Must be a space. */
b34976b6 2685 return TRUE;
252b5132
RH		 2686}
2687
b34976b6 2688/* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
252b5132 2689
b34976b6 2690static bfd_boolean
116c20d2 2691som_is_subspace (asection *section)
252b5132
RH		 2692{
2693 /* If no copy data is available, then it's neither a space nor a
2694 subspace. */
2695 if (som_section_data (section)->copy_data == NULL)
b34976b6 2696 return FALSE;
252b5132
RH		 2697
2698 /* If the containing space is the same as the given section,
2699 then this isn't a subspace. */
2700 if (som_section_data (section)->copy_data->container == section
2701 || (som_section_data (section)->copy_data->container->output_section
2702 == section))
b34976b6 2703 return FALSE;
252b5132
RH		 2704
2705 /* OK. Must be a subspace. */
b34976b6 2706 return TRUE;
252b5132
RH		 2707}
2708
7dee875e 2709/* Return TRUE if the given space contains the given subspace. It
252b5132
RH		 2710 is safe to assume space really is a space, and subspace really
2711 is a subspace. */
2712
b34976b6 2713static bfd_boolean
116c20d2 2714som_is_container (asection *space, asection *subspace)
252b5132 2715{
116c20d2
NC		 2716 return (som_section_data (subspace)->copy_data->container == space)
2717 || (som_section_data (subspace)->copy_data->container->output_section
2718 == space);
252b5132
RH		 2719}
2720
2721/* Count and return the number of spaces attached to the given BFD. */
2722
2723static unsigned long
116c20d2 2724som_count_spaces (bfd *abfd)
252b5132
RH		 2725{
2726 int count = 0;
2727 asection *section;
2728
2729 for (section = abfd->sections; section != NULL; section = section->next)
7eae7d22 2730 count += som_is_space (section);
252b5132
RH		 2731
2732 return count;
2733}
2734
2735/* Count the number of subspaces attached to the given BFD. */
2736
2737static unsigned long
116c20d2 2738som_count_subspaces (bfd *abfd)
252b5132
RH		 2739{
2740 int count = 0;
2741 asection *section;
2742
2743 for (section = abfd->sections; section != NULL; section = section->next)
2744 count += som_is_subspace (section);
2745
2746 return count;
2747}
2748
2749/* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2750
2751 We desire symbols to be ordered starting with the symbol with the
2752 highest relocation count down to the symbol with the lowest relocation
2753 count. Doing so compacts the relocation stream. */
2754
2755static int
6a808a40 2756compare_syms (const void *arg1, const void *arg2)
252b5132
RH		 2757{
2758 asymbol **sym1 = (asymbol **) arg1;
2759 asymbol **sym2 = (asymbol **) arg2;
2760 unsigned int count1, count2;
6fa957a9 2761
252b5132
RH		 2762 /* Get relocation count for each symbol. Note that the count
2763 is stored in the udata pointer for section symbols! */
2764 if ((*sym1)->flags & BSF_SECTION_SYM)
2765 count1 = (*sym1)->udata.i;
2766 else
2767 count1 = som_symbol_data (*sym1)->reloc_count;
2768
2769 if ((*sym2)->flags & BSF_SECTION_SYM)
2770 count2 = (*sym2)->udata.i;
2771 else
2772 count2 = som_symbol_data (*sym2)->reloc_count;
2773
2774 /* Return the appropriate value. */
2775 if (count1 < count2)
2776 return 1;
2777 else if (count1 > count2)
2778 return -1;
2779 return 0;
2780}
2781
2782/* Return -1, 0, 1 indicating the relative ordering of subspace1
2783 and subspace. */
2784
2785static int
6a808a40 2786compare_subspaces (const void *arg1, const void *arg2)
252b5132
RH		 2787{
2788 asection **subspace1 = (asection **) arg1;
2789 asection **subspace2 = (asection **) arg2;
6fa957a9 2790
252b5132
RH		 2791 if ((*subspace1)->target_index < (*subspace2)->target_index)
2792 return -1;
2793 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2794 return 1;
2795 else
2796 return 0;
2797}
2798
2799/* Perform various work in preparation for emitting the fixup stream. */
2800
2801static void
116c20d2 2802som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
252b5132 2803{
dc810e39 2804 unsigned long i;
252b5132
RH		 2805 asection *section;
2806 asymbol **sorted_syms;
2807
2808 /* Most SOM relocations involving a symbol have a length which is
2809 dependent on the index of the symbol. So symbols which are
2810 used often in relocations should have a small index. */
2811
2812 /* First initialize the counters for each symbol. */
2813 for (i = 0; i < num_syms; i++)
2814 {
2815 /* Handle a section symbol; these have no pointers back to the
2816 SOM symbol info. So we just use the udata field to hold the
2817 relocation count. */
2818 if (som_symbol_data (syms[i]) == NULL
2819 || syms[i]->flags & BSF_SECTION_SYM)
2820 {
2821 syms[i]->flags |= BSF_SECTION_SYM;
2822 syms[i]->udata.i = 0;
2823 }
2824 else
2825 som_symbol_data (syms[i])->reloc_count = 0;
2826 }
2827
2828 /* Now that the counters are initialized, make a weighted count
2829 of how often a given symbol is used in a relocation. */
2830 for (section = abfd->sections; section != NULL; section = section->next)
2831 {
dc810e39 2832 int j;
252b5132
RH		 2833
2834 /* Does this section have any relocations? */
dc810e39 2835 if ((int) section->reloc_count <= 0)
252b5132
RH		 2836 continue;
2837
2838 /* Walk through each relocation for this section. */
dc810e39 2839 for (j = 1; j < (int) section->reloc_count; j++)
252b5132 2840 {
dc810e39 2841 arelent *reloc = section->orelocation[j];
252b5132
RH		 2842 int scale;
2843
2844 /* A relocation against a symbol in the *ABS* section really
2845 does not have a symbol. Likewise if the symbol isn't associated
2846 with any section. */
2847 if (reloc->sym_ptr_ptr == NULL
2848 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2849 continue;
2850
6fa957a9 2851 /* Scaling to encourage symbols involved in R_DP_RELATIVE
252b5132
RH		 2852 and R_CODE_ONE_SYMBOL relocations to come first. These
2853 two relocations have single byte versions if the symbol
2854 index is very small. */
2855 if (reloc->howto->type == R_DP_RELATIVE
2856 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2857 scale = 2;
2858 else
2859 scale = 1;
2860
2861 /* Handle section symbols by storing the count in the udata
2862 field. It will not be used and the count is very important
2863 for these symbols. */
2864 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2865 {
2866 (*reloc->sym_ptr_ptr)->udata.i =
2867 (*reloc->sym_ptr_ptr)->udata.i + scale;
2868 continue;
2869 }
2870
2871 /* A normal symbol. Increment the count. */
2872 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2873 }
2874 }
2875
2876 /* Sort a copy of the symbol table, rather than the canonical
2877 output symbol table. */
e5af2160 2878 sorted_syms = bfd_zalloc2 (abfd, num_syms, sizeof (asymbol *));
252b5132
RH		 2879 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2880 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2881 obj_som_sorted_syms (abfd) = sorted_syms;
2882
2883 /* Compute the symbol indexes, they will be needed by the relocation
2884 code. */
2885 for (i = 0; i < num_syms; i++)
2886 {
2887 /* A section symbol. Again, there is no pointer to backend symbol
2888 information, so we reuse the udata field again. */
2889 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2890 sorted_syms[i]->udata.i = i;
2891 else
7eae7d22 2892 som_symbol_data (sorted_syms[i])->index = i;
252b5132
RH		 2893 }
2894}
2895
b34976b6 2896static bfd_boolean
116c20d2
NC		 2897som_write_fixups (bfd *abfd,
2898 unsigned long current_offset,
2899 unsigned int *total_reloc_sizep)
252b5132
RH		 2900{
2901 unsigned int i, j;
2902 /* Chunk of memory that we can use as buffer space, then throw
2903 away. */
2904 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2905 unsigned char *p;
2906 unsigned int total_reloc_size = 0;
2907 unsigned int subspace_reloc_size = 0;
2908 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2909 asection *section = abfd->sections;
dc810e39 2910 bfd_size_type amt;
252b5132
RH		 2911
2912 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2913 p = tmp_space;
2914
2915 /* All the fixups for a particular subspace are emitted in a single
2916 stream. All the subspaces for a particular space are emitted
2917 as a single stream.
2918
2919 So, to get all the locations correct one must iterate through all the
2920 spaces, for each space iterate through its subspaces and output a
2921 fixups stream. */
2922 for (i = 0; i < num_spaces; i++)
2923 {
2924 asection *subsection;
2925
2926 /* Find a space. */
2927 while (!som_is_space (section))
2928 section = section->next;
2929
2930 /* Now iterate through each of its subspaces. */
2931 for (subsection = abfd->sections;
2932 subsection != NULL;
2933 subsection = subsection->next)
2934 {
dc810e39
AM		 2935 int reloc_offset;
2936 unsigned int current_rounding_mode;
2667095f 2937#ifndef NO_PCREL_MODES
5198ba8b 2938 unsigned int current_call_mode;
2667095f 2939#endif
252b5132
RH		 2940
2941 /* Find a subspace of this space. */
2942 if (!som_is_subspace (subsection)
2943 || !som_is_container (section, subsection))
2944 continue;
2945
2946 /* If this subspace does not have real data, then we are
7dee875e 2947 finished with it. */
252b5132
RH		 2948 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2949 {
2950 som_section_data (subsection)->subspace_dict->fixup_request_index
2951 = -1;
2952 continue;
2953 }
2954
2955 /* This subspace has some relocations. Put the relocation stream
2956 index into the subspace record. */
2957 som_section_data (subsection)->subspace_dict->fixup_request_index
2958 = total_reloc_size;
2959
6fa957a9 2960 /* To make life easier start over with a clean slate for
252b5132
RH		 2961 each subspace. Seek to the start of the relocation stream
2962 for this subspace in preparation for writing out its fixup
2963 stream. */
dc810e39 2964 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
b34976b6 2965 return FALSE;
252b5132
RH		 2966
2967 /* Buffer space has already been allocated. Just perform some
2968 initialization here. */
2969 p = tmp_space;
2970 subspace_reloc_size = 0;
2971 reloc_offset = 0;
2972 som_initialize_reloc_queue (reloc_queue);
2973 current_rounding_mode = R_N_MODE;
2667095f
JL		 2974#ifndef NO_PCREL_MODES
2975 current_call_mode = R_SHORT_PCREL_MODE;
2976#endif
252b5132 2977
6fa957a9 2978 /* Translate each BFD relocation into one or more SOM
252b5132
RH		 2979 relocations. */
2980 for (j = 0; j < subsection->reloc_count; j++)
2981 {
2982 arelent *bfd_reloc = subsection->orelocation[j];
2983 unsigned int skip;
2984 int sym_num;
2985
6fa957a9 2986 /* Get the symbol number. Remember it's stored in a
252b5132
RH		 2987 special place for section symbols. */
2988 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2989 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2990 else
2991 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
6fa957a9 2992
252b5132
RH		 2993 /* If there is not enough room for the next couple relocations,
2994 then dump the current buffer contents now. Also reinitialize
6fa957a9 2995 the relocation queue.
252b5132
RH		 2996
2997 No single BFD relocation could ever translate into more
2998 than 100 bytes of SOM relocations (20bytes is probably the
2999 upper limit, but leave lots of space for growth). */
3000 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
3001 {
dc810e39 3002 amt = p - tmp_space;
116c20d2 3003 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
b34976b6 3004 return FALSE;
252b5132
RH		 3005
3006 p = tmp_space;
3007 som_initialize_reloc_queue (reloc_queue);
3008 }
3009
3010 /* Emit R_NO_RELOCATION fixups to map any bytes which were
3011 skipped. */
3012 skip = bfd_reloc->address - reloc_offset;
3013 p = som_reloc_skip (abfd, skip, p,
3014 &subspace_reloc_size, reloc_queue);
3015
3016 /* Update reloc_offset for the next iteration.
3017
3018 Many relocations do not consume input bytes. They
3019 are markers, or set state necessary to perform some
3020 later relocation. */
3021 switch (bfd_reloc->howto->type)
3022 {
3023 case R_ENTRY:
3024 case R_ALT_ENTRY:
3025 case R_EXIT:
3026 case R_N_MODE:
3027 case R_S_MODE:
3028 case R_D_MODE:
3029 case R_R_MODE:
3030 case R_FSEL:
3031 case R_LSEL:
3032 case R_RSEL:
3033 case R_COMP1:
3034 case R_COMP2:
3035 case R_BEGIN_BRTAB:
3036 case R_END_BRTAB:
3037 case R_BEGIN_TRY:
3038 case R_END_TRY:
3039 case R_N0SEL:
3040 case R_N1SEL:
2667095f
JL		 3041#ifndef NO_PCREL_MODES
3042 case R_SHORT_PCREL_MODE:
3043 case R_LONG_PCREL_MODE:
3044#endif
252b5132
RH		 3045 reloc_offset = bfd_reloc->address;
3046 break;
3047
3048 default:
3049 reloc_offset = bfd_reloc->address + 4;
3050 break;
3051 }
3052
3053 /* Now the actual relocation we care about. */
3054 switch (bfd_reloc->howto->type)
3055 {
3056 case R_PCREL_CALL:
3057 case R_ABS_CALL:
3058 p = som_reloc_call (abfd, p, &subspace_reloc_size,
3059 bfd_reloc, sym_num, reloc_queue);
3060 break;
3061
3062 case R_CODE_ONE_SYMBOL:
3063 case R_DP_RELATIVE:
3064 /* Account for any addend. */
3065 if (bfd_reloc->addend)
6fa957a9 3066 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
252b5132
RH		 3067 &subspace_reloc_size, reloc_queue);
3068
3069 if (sym_num < 0x20)
3070 {
3071 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
3072 subspace_reloc_size += 1;
3073 p += 1;
3074 }
3075 else if (sym_num < 0x100)
3076 {
3077 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
3078 bfd_put_8 (abfd, sym_num, p + 1);
3079 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3080 2, reloc_queue);
3081 }
3082 else if (sym_num < 0x10000000)
3083 {
3084 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
3085 bfd_put_8 (abfd, sym_num >> 16, p + 1);
dc810e39 3086 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
252b5132
RH		 3087 p = try_prev_fixup (abfd, &subspace_reloc_size,
3088 p, 4, reloc_queue);
3089 }
3090 else
3091 abort ();
3092 break;
3093
6bba1048
DA		 3094 case R_DATA_GPREL:
3095 /* Account for any addend. */
3096 if (bfd_reloc->addend)
3097 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3098 &subspace_reloc_size, reloc_queue);
3099
3100 if (sym_num < 0x10000000)
3101 {
3102 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3103 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3104 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3105 p = try_prev_fixup (abfd, &subspace_reloc_size,
3106 p, 4, reloc_queue);
3107 }
3108 else
3109 abort ();
3110 break;
3111
252b5132
RH		 3112 case R_DATA_ONE_SYMBOL:
3113 case R_DATA_PLABEL:
3114 case R_CODE_PLABEL:
3115 case R_DLT_REL:
3116 /* Account for any addend using R_DATA_OVERRIDE. */
3117 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
3118 && bfd_reloc->addend)
6fa957a9 3119 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
252b5132
RH		 3120 &subspace_reloc_size, reloc_queue);
3121
3122 if (sym_num < 0x100)
3123 {
3124 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3125 bfd_put_8 (abfd, sym_num, p + 1);
3126 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3127 2, reloc_queue);
3128 }
3129 else if (sym_num < 0x10000000)
3130 {
3131 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3132 bfd_put_8 (abfd, sym_num >> 16, p + 1);
dc810e39 3133 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
252b5132
RH		 3134 p = try_prev_fixup (abfd, &subspace_reloc_size,
3135 p, 4, reloc_queue);
3136 }
3137 else
3138 abort ();
3139 break;
3140
3141 case R_ENTRY:
3142 {
dc810e39 3143 unsigned int tmp;
252b5132
RH		 3144 arelent *tmp_reloc = NULL;
3145 bfd_put_8 (abfd, R_ENTRY, p);
3146
3147 /* R_ENTRY relocations have 64 bits of associated
3148 data. Unfortunately the addend field of a bfd
3149 relocation is only 32 bits. So, we split up
3150 the 64bit unwind information and store part in
3151 the R_ENTRY relocation, and the rest in the R_EXIT
3152 relocation. */
3153 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
6fa957a9 3154
252b5132
RH		 3155 /* Find the next R_EXIT relocation. */
3156 for (tmp = j; tmp < subsection->reloc_count; tmp++)
3157 {
7eae7d22 3158 tmp_reloc = subsection->orelocation[tmp];
252b5132
RH		 3159 if (tmp_reloc->howto->type == R_EXIT)
3160 break;
3161 }
3162
3163 if (tmp == subsection->reloc_count)
3164 abort ();
3165
3166 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
3167 p = try_prev_fixup (abfd, &subspace_reloc_size,
3168 p, 9, reloc_queue);
3169 break;
3170 }
6fa957a9 3171
252b5132
RH		 3172 case R_N_MODE:
3173 case R_S_MODE:
3174 case R_D_MODE:
3175 case R_R_MODE:
3176 /* If this relocation requests the current rounding
3177 mode, then it is redundant. */
3178 if (bfd_reloc->howto->type != current_rounding_mode)
3179 {
3180 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3181 subspace_reloc_size += 1;
3182 p += 1;
3183 current_rounding_mode = bfd_reloc->howto->type;
3184 }
3185 break;
3186
2667095f
JL		 3187#ifndef NO_PCREL_MODES
3188 case R_LONG_PCREL_MODE:
3189 case R_SHORT_PCREL_MODE:
3190 if (bfd_reloc->howto->type != current_call_mode)
3191 {
3192 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3193 subspace_reloc_size += 1;
3194 p += 1;
3195 current_call_mode = bfd_reloc->howto->type;
3196 }
3197 break;
3198#endif
3199
252b5132
RH		 3200 case R_EXIT:
3201 case R_ALT_ENTRY:
3202 case R_FSEL:
3203 case R_LSEL:
3204 case R_RSEL:
3205 case R_BEGIN_BRTAB:
3206 case R_END_BRTAB:
3207 case R_BEGIN_TRY:
3208 case R_N0SEL:
3209 case R_N1SEL:
3210 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3211 subspace_reloc_size += 1;
3212 p += 1;
3213 break;
3214
3215 case R_END_TRY:
08da05b0 3216 /* The end of an exception handling region. The reloc's
252b5132
RH		 3217 addend contains the offset of the exception handling
3218 code. */
3219 if (bfd_reloc->addend == 0)
3220 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3221 else if (bfd_reloc->addend < 1024)
3222 {
3223 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3224 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3225 p = try_prev_fixup (abfd, &subspace_reloc_size,
3226 p, 2, reloc_queue);
3227 }
3228 else
3229 {
3230 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3231 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3232 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3233 p = try_prev_fixup (abfd, &subspace_reloc_size,
3234 p, 4, reloc_queue);
3235 }
3236 break;
6fa957a9 3237
252b5132 3238 case R_COMP1:
6fa957a9 3239 /* The only time we generate R_COMP1, R_COMP2 and
252b5132
RH		 3240 R_CODE_EXPR relocs is for the difference of two
3241 symbols. Hence we can cheat here. */
3242 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3243 bfd_put_8 (abfd, 0x44, p + 1);
3244 p = try_prev_fixup (abfd, &subspace_reloc_size,
3245 p, 2, reloc_queue);
3246 break;
3247
3248 case R_COMP2:
6fa957a9 3249 /* The only time we generate R_COMP1, R_COMP2 and
252b5132
RH		 3250 R_CODE_EXPR relocs is for the difference of two
3251 symbols. Hence we can cheat here. */
3252 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3253 bfd_put_8 (abfd, 0x80, p + 1);
3254 bfd_put_8 (abfd, sym_num >> 16, p + 2);
dc810e39 3255 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
252b5132
RH		 3256 p = try_prev_fixup (abfd, &subspace_reloc_size,
3257 p, 5, reloc_queue);
3258 break;
3259
3260 case R_CODE_EXPR:
3261 case R_DATA_EXPR:
6fa957a9 3262 /* The only time we generate R_COMP1, R_COMP2 and
252b5132
RH		 3263 R_CODE_EXPR relocs is for the difference of two
3264 symbols. Hence we can cheat here. */
3265 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3266 subspace_reloc_size += 1;
3267 p += 1;
3268 break;
3269
3270 /* Put a "R_RESERVED" relocation in the stream if
3271 we hit something we do not understand. The linker
3272 will complain loudly if this ever happens. */
3273 default:
3274 bfd_put_8 (abfd, 0xff, p);
3275 subspace_reloc_size += 1;
3276 p += 1;
3277 break;
3278 }
3279 }
3280
3281 /* Last BFD relocation for a subspace has been processed.
3282 Map the rest of the subspace with R_NO_RELOCATION fixups. */
eea6121a 3283 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
252b5132
RH		 3284 p, &subspace_reloc_size, reloc_queue);
3285
3286 /* Scribble out the relocations. */
dc810e39 3287 amt = p - tmp_space;
116c20d2 3288 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
b34976b6 3289 return FALSE;
252b5132
RH		 3290 p = tmp_space;
3291
3292 total_reloc_size += subspace_reloc_size;
3293 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3294 = subspace_reloc_size;
3295 }
3296 section = section->next;
3297 }
3298 *total_reloc_sizep = total_reloc_size;
b34976b6 3299 return TRUE;
252b5132
RH		 3300}
3301
3302/* Write out the space/subspace string table. */
3303
b34976b6 3304static bfd_boolean
116c20d2
NC		 3305som_write_space_strings (bfd *abfd,
3306 unsigned long current_offset,
3307 unsigned int *string_sizep)
252b5132
RH		 3308{
3309 /* Chunk of memory that we can use as buffer space, then throw
3310 away. */
8681fbcd 3311 size_t tmp_space_size = SOM_TMP_BUFSIZE;
ec9bd0a2 3312 char *tmp_space = bfd_malloc (tmp_space_size);
a96afa0f 3313 char *p = tmp_space;
252b5132
RH		 3314 unsigned int strings_size = 0;
3315 asection *section;
dc810e39 3316 bfd_size_type amt;
e1fa0163 3317 bfd_size_type res;
252b5132 3318
ec9bd0a2
AM		 3319 if (tmp_space == NULL)
3320 return FALSE;
3321
252b5132
RH		 3322 /* Seek to the start of the space strings in preparation for writing
3323 them out. */
dc810e39 3324 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3325 return FALSE;
252b5132
RH		 3326
3327 /* Walk through all the spaces and subspaces (order is not important)
3328 building up and writing string table entries for their names. */
3329 for (section = abfd->sections; section != NULL; section = section->next)
3330 {
8681fbcd 3331 size_t length;
252b5132
RH		 3332
3333 /* Only work with space/subspaces; avoid any other sections
3334 which might have been made (.text for example). */
3335 if (!som_is_space (section) && !som_is_subspace (section))
3336 continue;
3337
3338 /* Get the length of the space/subspace name. */
3339 length = strlen (section->name);
3340
3341 /* If there is not enough room for the next entry, then dump the
b34976b6
AM		 3342 current buffer contents now and maybe allocate a larger
3343 buffer. Each entry will take 4 bytes to hold the string
3344 length + the string itself + null terminator. */
8681fbcd 3345 if (p - tmp_space + 5 + length > tmp_space_size)
252b5132 3346 {
8681fbcd 3347 /* Flush buffer before refilling or reallocating. */
dc810e39 3348 amt = p - tmp_space;
116c20d2 3349 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3350 return FALSE;
8681fbcd
JL		 3351
3352 /* Reallocate if now empty buffer still too small. */
3353 if (5 + length > tmp_space_size)
3354 {
3355 /* Ensure a minimum growth factor to avoid O(n**2) space
b34976b6
AM		 3356 consumption for n strings. The optimal minimum
3357 factor seems to be 2, as no other value can guarantee
3358 wasting less than 50% space. (Note that we cannot
3359 deallocate space allocated by `alloca' without
3360 returning from this function.) The same technique is
3361 used a few more times below when a buffer is
3362 reallocated. */
07d6d2b8
AM		 3363 if (2 * tmp_space_size < length + 5)
3364 tmp_space_size = length + 5;
3365 else
3366 tmp_space_size = 2 * tmp_space_size;
e1fa0163 3367 tmp_space = xrealloc (tmp_space, tmp_space_size);
8681fbcd
JL		 3368 }
3369
3370 /* Reset to beginning of the (possibly new) buffer space. */
252b5132
RH		 3371 p = tmp_space;
3372 }
3373
3374 /* First element in a string table entry is the length of the
3375 string. Alignment issues are already handled. */
dc810e39 3376 bfd_put_32 (abfd, (bfd_vma) length, p);
252b5132
RH		 3377 p += 4;
3378 strings_size += 4;
3379
3380 /* Record the index in the space/subspace records. */
3381 if (som_is_space (section))
e1f000f6 3382 som_section_data (section)->space_dict->name = strings_size;
252b5132 3383 else
e1f000f6 3384 som_section_data (section)->subspace_dict->name = strings_size;
252b5132
RH		 3385
3386 /* Next comes the string itself + a null terminator. */
3387 strcpy (p, section->name);
3388 p += length + 1;
3389 strings_size += length + 1;
3390
3391 /* Always align up to the next word boundary. */
3392 while (strings_size % 4)
3393 {
3394 bfd_put_8 (abfd, 0, p);
3395 p++;
3396 strings_size++;
3397 }
3398 }
3399
3400 /* Done with the space/subspace strings. Write out any information
3401 contained in a partial block. */
dc810e39 3402 amt = p - tmp_space;
e1fa0163
NC		 3403 res = bfd_bwrite ((void *) &tmp_space[0], amt, abfd);
3404 free (tmp_space);
3405 if (res != amt)
b34976b6 3406 return FALSE;
252b5132 3407 *string_sizep = strings_size;
b34976b6 3408 return TRUE;
252b5132
RH		 3409}
3410
3411/* Write out the symbol string table. */
3412
b34976b6 3413static bfd_boolean
116c20d2
NC		 3414som_write_symbol_strings (bfd *abfd,
3415 unsigned long current_offset,
3416 asymbol **syms,
3417 unsigned int num_syms,
3418 unsigned int *string_sizep,
e1f000f6 3419 struct som_compilation_unit *compilation_unit)
252b5132
RH		 3420{
3421 unsigned int i;
252b5132
RH		 3422 /* Chunk of memory that we can use as buffer space, then throw
3423 away. */
8681fbcd 3424 size_t tmp_space_size = SOM_TMP_BUFSIZE;
ec9bd0a2 3425 char *tmp_space = bfd_malloc (tmp_space_size);
a96afa0f 3426 char *p = tmp_space;
252b5132 3427 unsigned int strings_size = 0;
dc810e39 3428 bfd_size_type amt;
e1fa0163 3429 bfd_size_type res;
252b5132 3430
ec9bd0a2
AM		 3431 if (tmp_space == NULL)
3432 return FALSE;
3433
252b5132
RH		 3434 /* This gets a bit gruesome because of the compilation unit. The
3435 strings within the compilation unit are part of the symbol
3436 strings, but don't have symbol_dictionary entries. So, manually
7dee875e 3437 write them and update the compilation unit header. On input, the
252b5132
RH		 3438 compilation unit header contains local copies of the strings.
3439 Move them aside. */
252b5132 3440
252b5132
RH		 3441 /* Seek to the start of the space strings in preparation for writing
3442 them out. */
21d17a58 3443 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3444 return FALSE;
252b5132
RH		 3445
3446 if (compilation_unit)
3447 {
3448 for (i = 0; i < 4; i++)
3449 {
07d6d2b8
AM		 3450 struct som_name_pt *name;
3451 size_t length;
e1f000f6
TG		 3452
3453 switch (i)
3454 {
3455 case 0:
3456 name = &compilation_unit->name;
3457 break;
3458 case 1:
3459 name = &compilation_unit->language_name;
3460 break;
3461 case 2:
3462 name = &compilation_unit->product_id;
3463 break;
3464 case 3:
3465 name = &compilation_unit->version_id;
3466 break;
07d6d2b8
AM		 3467 default:
3468 abort ();
e1f000f6
TG		 3469 }
3470
3471 length = strlen (name->name);
252b5132
RH		 3472
3473 /* If there is not enough room for the next entry, then dump
8681fbcd
JL		 3474 the current buffer contents now and maybe allocate a
3475 larger buffer. */
3476 if (p - tmp_space + 5 + length > tmp_space_size)
252b5132 3477 {
6fa957a9 3478 /* Flush buffer before refilling or reallocating. */
dc810e39 3479 amt = p - tmp_space;
116c20d2 3480 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3481 return FALSE;
8681fbcd
JL		 3482
3483 /* Reallocate if now empty buffer still too small. */
3484 if (5 + length > tmp_space_size)
3485 {
3486 /* See alloca above for discussion of new size. */
07d6d2b8
AM		 3487 if (2 * tmp_space_size < 5 + length)
3488 tmp_space_size = 5 + length;
3489 else
3490 tmp_space_size = 2 * tmp_space_size;
e1fa0163 3491 tmp_space = xrealloc (tmp_space, tmp_space_size);
8681fbcd
JL		 3492 }
3493
3494 /* Reset to beginning of the (possibly new) buffer
b34976b6 3495 space. */
252b5132
RH		 3496 p = tmp_space;
3497 }
3498
3499 /* First element in a string table entry is the length of
3500 the string. This must always be 4 byte aligned. This is
3501 also an appropriate time to fill in the string index
3502 field in the symbol table entry. */
dc810e39 3503 bfd_put_32 (abfd, (bfd_vma) length, p);
252b5132
RH		 3504 strings_size += 4;
3505 p += 4;
3506
3507 /* Next comes the string itself + a null terminator. */
e1f000f6 3508 strcpy (p, name->name);
252b5132 3509
07d6d2b8 3510 name->strx = strings_size;
252b5132
RH		 3511
3512 p += length + 1;
3513 strings_size += length + 1;
3514
3515 /* Always align up to the next word boundary. */
3516 while (strings_size % 4)
3517 {
3518 bfd_put_8 (abfd, 0, p);
3519 strings_size++;
3520 p++;
3521 }
3522 }
3523 }
3524
3525 for (i = 0; i < num_syms; i++)
3526 {
8681fbcd 3527 size_t length = strlen (syms[i]->name);
252b5132
RH		 3528
3529 /* If there is not enough room for the next entry, then dump the
8681fbcd
JL		 3530 current buffer contents now and maybe allocate a larger buffer. */
3531 if (p - tmp_space + 5 + length > tmp_space_size)
252b5132 3532 {
6fa957a9 3533 /* Flush buffer before refilling or reallocating. */
dc810e39 3534 amt = p - tmp_space;
116c20d2 3535 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3536 return FALSE;
8681fbcd
JL		 3537
3538 /* Reallocate if now empty buffer still too small. */
3539 if (5 + length > tmp_space_size)
3540 {
3541 /* See alloca above for discussion of new size. */
07d6d2b8
AM		 3542 if (2 * tmp_space_size < 5 + length)
3543 tmp_space_size = 5 + length;
3544 else
3545 tmp_space_size = 2 * tmp_space_size;
e1fa0163 3546 tmp_space = xrealloc (tmp_space, tmp_space_size);
8681fbcd
JL		 3547 }
3548
3549 /* Reset to beginning of the (possibly new) buffer space. */
252b5132
RH		 3550 p = tmp_space;
3551 }
3552
3553 /* First element in a string table entry is the length of the
3554 string. This must always be 4 byte aligned. This is also
3555 an appropriate time to fill in the string index field in the
3556 symbol table entry. */
dc810e39 3557 bfd_put_32 (abfd, (bfd_vma) length, p);
252b5132
RH		 3558 strings_size += 4;
3559 p += 4;
3560
3561 /* Next comes the string itself + a null terminator. */
3562 strcpy (p, syms[i]->name);
3563
7eae7d22 3564 som_symbol_data (syms[i])->stringtab_offset = strings_size;
252b5132
RH		 3565 p += length + 1;
3566 strings_size += length + 1;
3567
3568 /* Always align up to the next word boundary. */
3569 while (strings_size % 4)
7eae7d22 3570 {
252b5132
RH		 3571 bfd_put_8 (abfd, 0, p);
3572 strings_size++;
3573 p++;
7eae7d22 3574 }
252b5132
RH		 3575 }
3576
3577 /* Scribble out any partial block. */
dc810e39 3578 amt = p - tmp_space;
e1fa0163
NC		 3579 res = bfd_bwrite ((void *) &tmp_space[0], amt, abfd);
3580 free (tmp_space);
3581 if (res != amt)
b34976b6 3582 return FALSE;
252b5132
RH		 3583
3584 *string_sizep = strings_size;
b34976b6 3585 return TRUE;
252b5132
RH		 3586}
3587
6fa957a9 3588/* Compute variable information to be placed in the SOM headers,
252b5132
RH		 3589 space/subspace dictionaries, relocation streams, etc. Begin
3590 writing parts of the object file. */
3591
b34976b6 3592static bfd_boolean
116c20d2 3593som_begin_writing (bfd *abfd)
252b5132
RH		 3594{
3595 unsigned long current_offset = 0;
a96afa0f 3596 unsigned int strings_size = 0;
252b5132
RH		 3597 unsigned long num_spaces, num_subspaces, i;
3598 asection *section;
3599 unsigned int total_subspaces = 0;
3600 struct som_exec_auxhdr *exec_header = NULL;
3601
6fa957a9 3602 /* The file header will always be first in an object file,
252b5132
RH		 3603 everything else can be in random locations. To keep things
3604 "simple" BFD will lay out the object file in the manner suggested
3605 by the PRO ABI for PA-RISC Systems. */
3606
3607 /* Before any output can really begin offsets for all the major
3608 portions of the object file must be computed. So, starting
3609 with the initial file header compute (and sometimes write)
3610 each portion of the object file. */
3611
3612 /* Make room for the file header, it's contents are not complete
3613 yet, so it can not be written at this time. */
e1f000f6 3614 current_offset += sizeof (struct som_external_header);
252b5132
RH		 3615
3616 /* Any auxiliary headers will follow the file header. Right now
3617 we support only the copyright and version headers. */
3618 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3619 obj_som_file_hdr (abfd)->aux_header_size = 0;
3620 if (abfd->flags & (EXEC_P | DYNAMIC))
3621 {
3622 /* Parts of the exec header will be filled in later, so
3623 delay writing the header itself. Fill in the defaults,
3624 and write it later. */
e1f000f6 3625 current_offset += sizeof (struct som_external_exec_auxhdr);
252b5132 3626 obj_som_file_hdr (abfd)->aux_header_size
e1f000f6 3627 += sizeof (struct som_external_exec_auxhdr);
252b5132
RH		 3628 exec_header = obj_som_exec_hdr (abfd);
3629 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3630 exec_header->som_auxhdr.length = 40;
3631 }
3632 if (obj_som_version_hdr (abfd) != NULL)
3633 {
e1f000f6 3634 struct som_external_string_auxhdr ext_string_auxhdr;
dc810e39 3635 bfd_size_type len;
252b5132 3636
dc810e39 3637 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3638 return FALSE;
252b5132
RH		 3639
3640 /* Write the aux_id structure and the string length. */
e1f000f6 3641 len = sizeof (struct som_external_string_auxhdr);
252b5132
RH		 3642 obj_som_file_hdr (abfd)->aux_header_size += len;
3643 current_offset += len;
e1f000f6 3644 som_swap_string_auxhdr_out
07d6d2b8 3645 (obj_som_version_hdr (abfd), &ext_string_auxhdr);
e1f000f6 3646 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
b34976b6 3647 return FALSE;
252b5132
RH		 3648
3649 /* Write the version string. */
e1f000f6 3650 len = obj_som_version_hdr (abfd)->header_id.length - 4;
252b5132
RH		 3651 obj_som_file_hdr (abfd)->aux_header_size += len;
3652 current_offset += len;
e1f000f6 3653 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->string, len, abfd)
dc810e39 3654 != len)
b34976b6 3655 return FALSE;
252b5132
RH		 3656 }
3657
3658 if (obj_som_copyright_hdr (abfd) != NULL)
3659 {
e1f000f6 3660 struct som_external_string_auxhdr ext_string_auxhdr;
dc810e39 3661 bfd_size_type len;
252b5132 3662
dc810e39 3663 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3664 return FALSE;
252b5132
RH		 3665
3666 /* Write the aux_id structure and the string length. */
e1f000f6 3667 len = sizeof (struct som_external_string_auxhdr);
252b5132
RH		 3668 obj_som_file_hdr (abfd)->aux_header_size += len;
3669 current_offset += len;
e1f000f6 3670 som_swap_string_auxhdr_out
07d6d2b8 3671 (obj_som_copyright_hdr (abfd), &ext_string_auxhdr);
e1f000f6 3672 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
b34976b6 3673 return FALSE;
252b5132
RH		 3674
3675 /* Write the copyright string. */
e1f000f6 3676 len = obj_som_copyright_hdr (abfd)->header_id.length - 4;
252b5132
RH		 3677 obj_som_file_hdr (abfd)->aux_header_size += len;
3678 current_offset += len;
e1f000f6 3679 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->string, len, abfd)
dc810e39 3680 != len)
b34976b6 3681 return FALSE;
252b5132
RH		 3682 }
3683
3684 /* Next comes the initialization pointers; we have no initialization
3685 pointers, so current offset does not change. */
3686 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3687 obj_som_file_hdr (abfd)->init_array_total = 0;
3688
3689 /* Next are the space records. These are fixed length records.
3690
3691 Count the number of spaces to determine how much room is needed
3692 in the object file for the space records.
3693
3694 The names of the spaces are stored in a separate string table,
3695 and the index for each space into the string table is computed
3696 below. Therefore, it is not possible to write the space headers
3697 at this time. */
3698 num_spaces = som_count_spaces (abfd);
3699 obj_som_file_hdr (abfd)->space_location = current_offset;
3700 obj_som_file_hdr (abfd)->space_total = num_spaces;
e1f000f6
TG		 3701 current_offset +=
3702 num_spaces * sizeof (struct som_external_space_dictionary_record);
252b5132
RH		 3703
3704 /* Next are the subspace records. These are fixed length records.
3705
3706 Count the number of subspaes to determine how much room is needed
3707 in the object file for the subspace records.
3708
3709 A variety if fields in the subspace record are still unknown at
3710 this time (index into string table, fixup stream location/size, etc). */
3711 num_subspaces = som_count_subspaces (abfd);
3712 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3713 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
351e2b5a 3714 current_offset
e1f000f6 3715 += num_subspaces * sizeof (struct som_external_subspace_dictionary_record);
252b5132
RH		 3716
3717 /* Next is the string table for the space/subspace names. We will
3718 build and write the string table on the fly. At the same time
3719 we will fill in the space/subspace name index fields. */
3720
3721 /* The string table needs to be aligned on a word boundary. */
3722 if (current_offset % 4)
3723 current_offset += (4 - (current_offset % 4));
3724
6fa957a9 3725 /* Mark the offset of the space/subspace string table in the
252b5132
RH		 3726 file header. */
3727 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3728
3729 /* Scribble out the space strings. */
82e51918 3730 if (! som_write_space_strings (abfd, current_offset, &strings_size))
b34976b6 3731 return FALSE;
252b5132
RH		 3732
3733 /* Record total string table size in the header and update the
3734 current offset. */
3735 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3736 current_offset += strings_size;
3737
6fa957a9 3738 /* Next is the compilation unit. */
252b5132
RH		 3739 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3740 obj_som_file_hdr (abfd)->compiler_total = 0;
6fa957a9 3741 if (obj_som_compilation_unit (abfd))
252b5132
RH		 3742 {
3743 obj_som_file_hdr (abfd)->compiler_total = 1;
e1f000f6 3744 current_offset += sizeof (struct som_external_compilation_unit);
252b5132
RH		 3745 }
3746
3747 /* Now compute the file positions for the loadable subspaces, taking
3748 care to make sure everything stays properly aligned. */
3749
3750 section = abfd->sections;
3751 for (i = 0; i < num_spaces; i++)
3752 {
3753 asection *subsection;
3754 int first_subspace;
3755 unsigned int subspace_offset = 0;
3756
3757 /* Find a space. */
3758 while (!som_is_space (section))
3759 section = section->next;
3760
3761 first_subspace = 1;
3762 /* Now look for all its subspaces. */
3763 for (subsection = abfd->sections;
3764 subsection != NULL;
3765 subsection = subsection->next)
3766 {
3767
3768 if (!som_is_subspace (subsection)
3769 || !som_is_container (section, subsection)
3770 || (subsection->flags & SEC_ALLOC) == 0)
3771 continue;
3772
3773 /* If this is the first subspace in the space, and we are
3774 building an executable, then take care to make sure all
3775 the alignments are correct and update the exec header. */
3776 if (first_subspace
3777 && (abfd->flags & (EXEC_P | DYNAMIC)))
3778 {
3779 /* Demand paged executables have each space aligned to a
3780 page boundary. Sharable executables (write-protected
3781 text) have just the private (aka data & bss) space aligned
3782 to a page boundary. Ugh. Not true for HPUX.
3783
3784 The HPUX kernel requires the text to always be page aligned
3785 within the file regardless of the executable's type. */
3786 if (abfd->flags & (D_PAGED | DYNAMIC)
3787 || (subsection->flags & SEC_CODE)
3788 || ((abfd->flags & WP_TEXT)
3789 && (subsection->flags & SEC_DATA)))
3790 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3791
3792 /* Update the exec header. */
3793 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3794 {
3795 exec_header->exec_tmem = section->vma;
3796 exec_header->exec_tfile = current_offset;
3797 }
3798 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3799 {
3800 exec_header->exec_dmem = section->vma;
3801 exec_header->exec_dfile = current_offset;
3802 }
3803
3804 /* Keep track of exactly where we are within a particular
3805 space. This is necessary as the braindamaged HPUX
6fa957a9 3806 loader will create holes between subspaces *and*
252b5132
RH		 3807 subspace alignments are *NOT* preserved. What a crock. */
3808 subspace_offset = subsection->vma;
3809
3810 /* Only do this for the first subspace within each space. */
3811 first_subspace = 0;
3812 }
3813 else if (abfd->flags & (EXEC_P | DYNAMIC))
3814 {
3815 /* The braindamaged HPUX loader may have created a hole
3816 between two subspaces. It is *not* sufficient to use
3817 the alignment specifications within the subspaces to
3818 account for these holes -- I've run into at least one
3819 case where the loader left one code subspace unaligned
3820 in a final executable.
3821
3822 To combat this we keep a current offset within each space,
3823 and use the subspace vma fields to detect and preserve
3824 holes. What a crock!
3825
3826 ps. This is not necessary for unloadable space/subspaces. */
3827 current_offset += subsection->vma - subspace_offset;
3828 if (subsection->flags & SEC_CODE)
3829 exec_header->exec_tsize += subsection->vma - subspace_offset;
3830 else
3831 exec_header->exec_dsize += subsection->vma - subspace_offset;
3832 subspace_offset += subsection->vma - subspace_offset;
3833 }
3834
252b5132
RH		 3835 subsection->target_index = total_subspaces++;
3836 /* This is real data to be loaded from the file. */
3837 if (subsection->flags & SEC_LOAD)
3838 {
3839 /* Update the size of the code & data. */
3840 if (abfd->flags & (EXEC_P | DYNAMIC)
3841 && subsection->flags & SEC_CODE)
eea6121a 3842 exec_header->exec_tsize += subsection->size;
252b5132
RH		 3843 else if (abfd->flags & (EXEC_P | DYNAMIC)
3844 && subsection->flags & SEC_DATA)
eea6121a 3845 exec_header->exec_dsize += subsection->size;
252b5132
RH		 3846 som_section_data (subsection)->subspace_dict->file_loc_init_value
3847 = current_offset;
3848 subsection->filepos = current_offset;
eea6121a
AM		 3849 current_offset += subsection->size;
3850 subspace_offset += subsection->size;
252b5132
RH		 3851 }
3852 /* Looks like uninitialized data. */
3853 else
3854 {
3855 /* Update the size of the bss section. */
3856 if (abfd->flags & (EXEC_P | DYNAMIC))
eea6121a 3857 exec_header->exec_bsize += subsection->size;
252b5132
RH		 3858
3859 som_section_data (subsection)->subspace_dict->file_loc_init_value
3860 = 0;
3861 som_section_data (subsection)->subspace_dict->
3862 initialization_length = 0;
3863 }
3864 }
3865 /* Goto the next section. */
6fa957a9 3866 section = section->next;
252b5132
RH		 3867 }
3868
3869 /* Finally compute the file positions for unloadable subspaces.
3870 If building an executable, start the unloadable stuff on its
3871 own page. */
3872
3873 if (abfd->flags & (EXEC_P | DYNAMIC))
3874 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3875
3876 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3877 section = abfd->sections;
3878 for (i = 0; i < num_spaces; i++)
3879 {
3880 asection *subsection;
3881
3882 /* Find a space. */
3883 while (!som_is_space (section))
3884 section = section->next;
3885
3886 if (abfd->flags & (EXEC_P | DYNAMIC))
3887 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3888
3889 /* Now look for all its subspaces. */
3890 for (subsection = abfd->sections;
3891 subsection != NULL;
3892 subsection = subsection->next)
3893 {
6fa957a9 3894
252b5132
RH		 3895 if (!som_is_subspace (subsection)
3896 || !som_is_container (section, subsection)
3897 || (subsection->flags & SEC_ALLOC) != 0)
3898 continue;
3899
3900 subsection->target_index = total_subspaces++;
3901 /* This is real data to be loaded from the file. */
3902 if ((subsection->flags & SEC_LOAD) == 0)
3903 {
3904 som_section_data (subsection)->subspace_dict->file_loc_init_value
3905 = current_offset;
3906 subsection->filepos = current_offset;
eea6121a 3907 current_offset += subsection->size;
252b5132
RH		 3908 }
3909 /* Looks like uninitialized data. */
3910 else
3911 {
3912 som_section_data (subsection)->subspace_dict->file_loc_init_value
3913 = 0;
3914 som_section_data (subsection)->subspace_dict->
eea6121a 3915 initialization_length = subsection->size;
252b5132
RH		 3916 }
3917 }
3918 /* Goto the next section. */
6fa957a9 3919 section = section->next;
252b5132
RH		 3920 }
3921
3922 /* If building an executable, then make sure to seek to and write
3923 one byte at the end of the file to make sure any necessary
3924 zeros are filled in. Ugh. */
3925 if (abfd->flags & (EXEC_P | DYNAMIC))
3926 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
dc810e39 3927 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
b34976b6 3928 return FALSE;
116c20d2 3929 if (bfd_bwrite ((void *) "", (bfd_size_type) 1, abfd) != 1)
b34976b6 3930 return FALSE;
252b5132
RH		 3931
3932 obj_som_file_hdr (abfd)->unloadable_sp_size
3933 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3934
3935 /* Loader fixups are not supported in any way shape or form. */
3936 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3937 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3938
3939 /* Done. Store the total size of the SOM so far. */
3940 obj_som_file_hdr (abfd)->som_length = current_offset;
3941
b34976b6 3942 return TRUE;
252b5132
RH		 3943}
3944
3945/* Finally, scribble out the various headers to the disk. */
3946
b34976b6 3947static bfd_boolean
116c20d2 3948som_finish_writing (bfd *abfd)
252b5132
RH		 3949{
3950 int num_spaces = som_count_spaces (abfd);
3951 asymbol **syms = bfd_get_outsymbols (abfd);
a96afa0f 3952 int i, num_syms;
252b5132
RH		 3953 int subspace_index = 0;
3954 file_ptr location;
3955 asection *section;
3956 unsigned long current_offset;
a96afa0f 3957 unsigned int strings_size, total_reloc_size;
dc810e39 3958 bfd_size_type amt;
e1f000f6 3959 struct som_external_header ext_header;
252b5132 3960
17617495
JL		 3961 /* We must set up the version identifier here as objcopy/strip copy
3962 private BFD data too late for us to handle this in som_begin_writing. */
3963 if (obj_som_exec_data (abfd)
3964 && obj_som_exec_data (abfd)->version_id)
3965 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3966 else
3967 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3968
252b5132
RH		 3969 /* Next is the symbol table. These are fixed length records.
3970
3971 Count the number of symbols to determine how much room is needed
3972 in the object file for the symbol table.
3973
3974 The names of the symbols are stored in a separate string table,
3975 and the index for each symbol name into the string table is computed
3976 below. Therefore, it is not possible to write the symbol table
6fa957a9 3977 at this time.
252b5132
RH		 3978
3979 These used to be output before the subspace contents, but they
3980 were moved here to work around a stupid bug in the hpux linker
3981 (fixed in hpux10). */
3982 current_offset = obj_som_file_hdr (abfd)->som_length;
3983
3984 /* Make sure we're on a word boundary. */
3985 if (current_offset % 4)
6fa957a9 3986 current_offset += (4 - (current_offset % 4));
252b5132
RH		 3987
3988 num_syms = bfd_get_symcount (abfd);
3989 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3990 obj_som_file_hdr (abfd)->symbol_total = num_syms;
e1f000f6
TG		 3991 current_offset +=
3992 num_syms * sizeof (struct som_external_symbol_dictionary_record);
252b5132
RH		 3993
3994 /* Next are the symbol strings.
3995 Align them to a word boundary. */
3996 if (current_offset % 4)
3997 current_offset += (4 - (current_offset % 4));
3998 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3999
4000 /* Scribble out the symbol strings. */
82e51918
AM		 4001 if (! som_write_symbol_strings (abfd, current_offset, syms,
4002 num_syms, &strings_size,
4003 obj_som_compilation_unit (abfd)))
b34976b6 4004 return FALSE;
252b5132
RH		 4005
4006 /* Record total string table size in header and update the
4007 current offset. */
4008 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
4009 current_offset += strings_size;
4010
4011 /* Do prep work before handling fixups. */
4012 som_prep_for_fixups (abfd,
4013 bfd_get_outsymbols (abfd),
4014 bfd_get_symcount (abfd));
4015
4016 /* At the end of the file is the fixup stream which starts on a
4017 word boundary. */
4018 if (current_offset % 4)
6fa957a9 4019 current_offset += (4 - (current_offset % 4));
252b5132
RH		 4020 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
4021
4022 /* Write the fixups and update fields in subspace headers which
4023 relate to the fixup stream. */
82e51918 4024 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
b34976b6 4025 return FALSE;
252b5132
RH		 4026
4027 /* Record the total size of the fixup stream in the file header. */
4028 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
4029
4030 /* Done. Store the total size of the SOM. */
4031 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
6fa957a9 4032
252b5132
RH		 4033 /* Now that the symbol table information is complete, build and
4034 write the symbol table. */
82e51918 4035 if (! som_build_and_write_symbol_table (abfd))
b34976b6 4036 return FALSE;
252b5132
RH		 4037
4038 /* Subspaces are written first so that we can set up information
4039 about them in their containing spaces as the subspace is written. */
4040
4041 /* Seek to the start of the subspace dictionary records. */
4042 location = obj_som_file_hdr (abfd)->subspace_location;
dc810e39 4043 if (bfd_seek (abfd, location, SEEK_SET) != 0)
b34976b6 4044 return FALSE;
252b5132
RH		 4045
4046 section = abfd->sections;
4047 /* Now for each loadable space write out records for its subspaces. */
4048 for (i = 0; i < num_spaces; i++)
4049 {
4050 asection *subsection;
4051
4052 /* Find a space. */
4053 while (!som_is_space (section))
4054 section = section->next;
4055
4056 /* Now look for all its subspaces. */
4057 for (subsection = abfd->sections;
4058 subsection != NULL;
4059 subsection = subsection->next)
4060 {
07d6d2b8 4061 struct som_external_subspace_dictionary_record ext_subspace_dict;
6fa957a9 4062
252b5132
RH		 4063 /* Skip any section which does not correspond to a space
4064 or subspace. Or does not have SEC_ALLOC set (and therefore
4065 has no real bits on the disk). */
4066 if (!som_is_subspace (subsection)
4067 || !som_is_container (section, subsection)
4068 || (subsection->flags & SEC_ALLOC) == 0)
4069 continue;
4070
4071 /* If this is the first subspace for this space, then save
4072 the index of the subspace in its containing space. Also
4073 set "is_loadable" in the containing space. */
4074
4075 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4076 {
4077 som_section_data (section)->space_dict->is_loadable = 1;
4078 som_section_data (section)->space_dict->subspace_index
4079 = subspace_index;
4080 }
4081
4082 /* Increment the number of subspaces seen and the number of
4083 subspaces contained within the current space. */
4084 subspace_index++;
4085 som_section_data (section)->space_dict->subspace_quantity++;
4086
4087 /* Mark the index of the current space within the subspace's
4088 dictionary record. */
4089 som_section_data (subsection)->subspace_dict->space_index = i;
6fa957a9 4090
252b5132 4091 /* Dump the current subspace header. */
07d6d2b8
AM		 4092 som_swap_subspace_dictionary_record_out
4093 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
351e2b5a 4094 amt = sizeof (struct som_subspace_dictionary_record);
e1f000f6 4095 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
b34976b6 4096 return FALSE;
252b5132
RH		 4097 }
4098 /* Goto the next section. */
6fa957a9 4099 section = section->next;
252b5132
RH		 4100 }
4101
4102 /* Now repeat the process for unloadable subspaces. */
4103 section = abfd->sections;
4104 /* Now for each space write out records for its subspaces. */
4105 for (i = 0; i < num_spaces; i++)
4106 {
4107 asection *subsection;
4108
4109 /* Find a space. */
4110 while (!som_is_space (section))
4111 section = section->next;
4112
4113 /* Now look for all its subspaces. */
4114 for (subsection = abfd->sections;
4115 subsection != NULL;
4116 subsection = subsection->next)
4117 {
07d6d2b8 4118 struct som_external_subspace_dictionary_record ext_subspace_dict;
6fa957a9 4119
252b5132
RH		 4120 /* Skip any section which does not correspond to a space or
4121 subspace, or which SEC_ALLOC set (and therefore handled
4122 in the loadable spaces/subspaces code above). */
4123
4124 if (!som_is_subspace (subsection)
4125 || !som_is_container (section, subsection)
4126 || (subsection->flags & SEC_ALLOC) != 0)
4127 continue;
4128
4129 /* If this is the first subspace for this space, then save
4130 the index of the subspace in its containing space. Clear
4131 "is_loadable". */
4132
4133 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4134 {
4135 som_section_data (section)->space_dict->is_loadable = 0;
4136 som_section_data (section)->space_dict->subspace_index
4137 = subspace_index;
4138 }
4139
4140 /* Increment the number of subspaces seen and the number of
4141 subspaces contained within the current space. */
4142 som_section_data (section)->space_dict->subspace_quantity++;
6fa957a9 4143 subspace_index++;
252b5132
RH		 4144
4145 /* Mark the index of the current space within the subspace's
4146 dictionary record. */
4147 som_section_data (subsection)->subspace_dict->space_index = i;
6fa957a9 4148
252b5132 4149 /* Dump this subspace header. */
07d6d2b8
AM		 4150 som_swap_subspace_dictionary_record_out
4151 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
351e2b5a 4152 amt = sizeof (struct som_subspace_dictionary_record);
e1f000f6 4153 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
b34976b6 4154 return FALSE;
252b5132
RH		 4155 }
4156 /* Goto the next section. */
6fa957a9 4157 section = section->next;
252b5132
RH		 4158 }
4159
7dee875e 4160 /* All the subspace dictionary records are written, and all the
252b5132
RH		 4161 fields are set up in the space dictionary records.
4162
4163 Seek to the right location and start writing the space
4164 dictionary records. */
4165 location = obj_som_file_hdr (abfd)->space_location;
dc810e39 4166 if (bfd_seek (abfd, location, SEEK_SET) != 0)
b34976b6 4167 return FALSE;
252b5132
RH		 4168
4169 section = abfd->sections;
4170 for (i = 0; i < num_spaces; i++)
4171 {
e1f000f6
TG		 4172 struct som_external_space_dictionary_record ext_space_dict;
4173
252b5132
RH		 4174 /* Find a space. */
4175 while (!som_is_space (section))
4176 section = section->next;
4177
7eae7d22 4178 /* Dump its header. */
e1f000f6 4179 som_swap_space_dictionary_out (som_section_data (section)->space_dict,
07d6d2b8 4180 &ext_space_dict);
e1f000f6
TG		 4181 amt = sizeof (struct som_external_space_dictionary_record);
4182 if (bfd_bwrite (&ext_space_dict, amt, abfd) != amt)
b34976b6 4183 return FALSE;
252b5132
RH		 4184
4185 /* Goto the next section. */
4186 section = section->next;
4187 }
4188
4189 /* Write the compilation unit record if there is one. */
4190 if (obj_som_compilation_unit (abfd))
4191 {
e1f000f6
TG		 4192 struct som_external_compilation_unit ext_comp_unit;
4193
252b5132 4194 location = obj_som_file_hdr (abfd)->compiler_location;
dc810e39 4195 if (bfd_seek (abfd, location, SEEK_SET) != 0)
b34976b6 4196 return FALSE;
252b5132 4197
e1f000f6 4198 som_swap_compilation_unit_out
07d6d2b8 4199 (obj_som_compilation_unit (abfd), &ext_comp_unit);
e1f000f6
TG		 4200
4201 amt = sizeof (struct som_external_compilation_unit);
4202 if (bfd_bwrite (&ext_comp_unit, amt, abfd) != amt)
b34976b6 4203 return FALSE;
252b5132
RH		 4204 }
4205
4206 /* Setting of the system_id has to happen very late now that copying of
4207 BFD private data happens *after* section contents are set. */
4208 if (abfd->flags & (EXEC_P | DYNAMIC))
7eae7d22 4209 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
252b5132 4210 else if (bfd_get_mach (abfd) == pa20)
7eae7d22 4211 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
252b5132 4212 else if (bfd_get_mach (abfd) == pa11)
7eae7d22 4213 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
252b5132 4214 else
7eae7d22 4215 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
252b5132 4216
e1f000f6 4217 /* Swap and compute the checksum for the file header just before writing
252b5132 4218 the header to disk. */
e1f000f6
TG		 4219 som_swap_header_out (obj_som_file_hdr (abfd), &ext_header);
4220 bfd_putb32 (som_compute_checksum (&ext_header), ext_header.checksum);
252b5132
RH		 4221
4222 /* Only thing left to do is write out the file header. It is always
4223 at location zero. Seek there and write it. */
dc810e39 4224 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
b34976b6 4225 return FALSE;
e1f000f6
TG		 4226 amt = sizeof (struct som_external_header);
4227 if (bfd_bwrite (&ext_header, amt, abfd) != amt)
b34976b6 4228 return FALSE;
252b5132
RH		 4229
4230 /* Now write the exec header. */
4231 if (abfd->flags & (EXEC_P | DYNAMIC))
4232 {
4233 long tmp, som_length;
4234 struct som_exec_auxhdr *exec_header;
e1f000f6 4235 struct som_external_exec_auxhdr ext_exec_header;
252b5132
RH		 4236
4237 exec_header = obj_som_exec_hdr (abfd);
4238 exec_header->exec_entry = bfd_get_start_address (abfd);
4239 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
4240
4241 /* Oh joys. Ram some of the BSS data into the DATA section
7dee875e 4242 to be compatible with how the hp linker makes objects
252b5132
RH		 4243 (saves memory space). */
4244 tmp = exec_header->exec_dsize;
4245 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
4246 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
4247 if (exec_header->exec_bsize < 0)
4248 exec_header->exec_bsize = 0;
4249 exec_header->exec_dsize = tmp;
4250
4251 /* Now perform some sanity checks. The idea is to catch bogons now and
4252 inform the user, instead of silently generating a bogus file. */
4253 som_length = obj_som_file_hdr (abfd)->som_length;
4254 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
4255 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
4256 {
4257 bfd_set_error (bfd_error_bad_value);
b34976b6 4258 return FALSE;
252b5132
RH		 4259 }
4260
e1f000f6
TG		 4261 som_swap_exec_auxhdr_out (exec_header, &ext_exec_header);
4262
252b5132 4263 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
dc810e39 4264 SEEK_SET) != 0)
b34976b6 4265 return FALSE;
252b5132 4266
e1f000f6
TG		 4267 amt = sizeof (ext_exec_header);
4268 if (bfd_bwrite (&ext_exec_header, amt, abfd) != amt)
b34976b6 4269 return FALSE;
252b5132 4270 }
b34976b6 4271 return TRUE;
252b5132
RH		 4272}
4273
4274/* Compute and return the checksum for a SOM file header. */
4275
4276static unsigned long
e1f000f6 4277som_compute_checksum (struct som_external_header *hdr)
252b5132
RH		 4278{
4279 unsigned long checksum, count, i;
e1f000f6 4280 unsigned long *buffer = (unsigned long *) hdr;
252b5132
RH		 4281
4282 checksum = 0;
e1f000f6 4283 count = sizeof (struct som_external_header) / 4;
252b5132
RH		 4284 for (i = 0; i < count; i++)
4285 checksum ^= *(buffer + i);
4286
4287 return checksum;
4288}
4289
4290static void
116c20d2
NC		 4291som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
4292 asymbol *sym,
4293 struct som_misc_symbol_info *info)
252b5132
RH		 4294{
4295 /* Initialize. */
4296 memset (info, 0, sizeof (struct som_misc_symbol_info));
4297
4298 /* The HP SOM linker requires detailed type information about
4299 all symbols (including undefined symbols!). Unfortunately,
4300 the type specified in an import/export statement does not
4301 always match what the linker wants. Severe braindamage. */
6fa957a9 4302
252b5132
RH		 4303 /* Section symbols will not have a SOM symbol type assigned to
4304 them yet. Assign all section symbols type ST_DATA. */
4305 if (sym->flags & BSF_SECTION_SYM)
4306 info->symbol_type = ST_DATA;
4307 else
4308 {
351e2b5a
DA		 4309 /* For BFD style common, the linker will choke unless we set the
4310 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
252b5132
RH		 4311 if (bfd_is_com_section (sym->section))
4312 {
252b5132 4313 info->symbol_type = ST_STORAGE;
351e2b5a 4314 info->symbol_scope = SS_UNSAT;
252b5132
RH		 4315 }
4316
4317 /* It is possible to have a symbol without an associated
4318 type. This happens if the user imported the symbol
4319 without a type and the symbol was never defined
4320 locally. If BSF_FUNCTION is set for this symbol, then
4321 assign it type ST_CODE (the HP linker requires undefined
4322 external functions to have type ST_CODE rather than ST_ENTRY). */
4323 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4324 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4325 && bfd_is_und_section (sym->section)
4326 && sym->flags & BSF_FUNCTION)
4327 info->symbol_type = ST_CODE;
4328
4329 /* Handle function symbols which were defined in this file.
4330 They should have type ST_ENTRY. Also retrieve the argument
4331 relocation bits from the SOM backend information. */
4332 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4333 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4334 && (sym->flags & BSF_FUNCTION))
4335 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4336 && (sym->flags & BSF_FUNCTION)))
4337 {
4338 info->symbol_type = ST_ENTRY;
4339 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4340 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4341 }
4342
4343 /* For unknown symbols set the symbol's type based on the symbol's
4344 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4345 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4346 {
f501de17
DA		 4347 if (bfd_is_abs_section (sym->section))
4348 info->symbol_type = ST_ABSOLUTE;
4349 else if (sym->section->flags & SEC_CODE)
252b5132
RH		 4350 info->symbol_type = ST_CODE;
4351 else
4352 info->symbol_type = ST_DATA;
4353 }
6fa957a9 4354
252b5132
RH		 4355 /* From now on it's a very simple mapping. */
4356 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4357 info->symbol_type = ST_ABSOLUTE;
4358 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4359 info->symbol_type = ST_CODE;
4360 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4361 info->symbol_type = ST_DATA;
4362 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4363 info->symbol_type = ST_MILLICODE;
4364 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4365 info->symbol_type = ST_PLABEL;
4366 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4367 info->symbol_type = ST_PRI_PROG;
4368 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4369 info->symbol_type = ST_SEC_PROG;
4370 }
6fa957a9 4371
252b5132
RH		 4372 /* Now handle the symbol's scope. Exported data which is not
4373 in the common section has scope SS_UNIVERSAL. Note scope
4374 of common symbols was handled earlier! */
351e2b5a
DA		 4375 if (bfd_is_com_section (sym->section))
4376 ;
4377 else if (bfd_is_und_section (sym->section))
252b5132 4378 info->symbol_scope = SS_UNSAT;
351e2b5a 4379 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
252b5132
RH		 4380 info->symbol_scope = SS_UNIVERSAL;
4381 /* Anything else which is not in the common section has scope
4382 SS_LOCAL. */
351e2b5a 4383 else
252b5132
RH		 4384 info->symbol_scope = SS_LOCAL;
4385
4386 /* Now set the symbol_info field. It has no real meaning
4387 for undefined or common symbols, but the HP linker will
4388 choke if it's not set to some "reasonable" value. We
4389 use zero as a reasonable value. */
4390 if (bfd_is_com_section (sym->section)
4391 || bfd_is_und_section (sym->section)
4392 || bfd_is_abs_section (sym->section))
4393 info->symbol_info = 0;
6fa957a9 4394 /* For all other symbols, the symbol_info field contains the
252b5132
RH		 4395 subspace index of the space this symbol is contained in. */
4396 else
4397 info->symbol_info = sym->section->target_index;
4398
4399 /* Set the symbol's value. */
4400 info->symbol_value = sym->value + sym->section->vma;
ba20314e 4401
351e2b5a 4402 /* The secondary_def field is for "weak" symbols. */
ba20314e 4403 if (sym->flags & BSF_WEAK)
b34976b6 4404 info->secondary_def = TRUE;
ba20314e 4405 else
b34976b6 4406 info->secondary_def = FALSE;
ba20314e 4407
351e2b5a
DA		 4408 /* The is_comdat, is_common and dup_common fields provide various
4409 flavors of common.
4410
4411 For data symbols, setting IS_COMMON provides Fortran style common
4412 (duplicate definitions and overlapped initialization). Setting both
4413 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4414 definitions as long as they are all the same length). In a shared
4415 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4416 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4417 symbol except in that it loses its IS_COMDAT flag in a shared link.
4418
4419 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4420 DUP_COMMON code symbols are not exported from shared libraries.
4421 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4422
4423 We take a simplified approach to setting the is_comdat, is_common
4424 and dup_common flags in symbols based on the flag settings of their
4425 subspace. This avoids having to add directives like `.comdat' but
4426 the linker behavior is probably undefined if there is more than one
4427 universal symbol (comdat key sysmbol) in a subspace.
4428
4429 The behavior of these flags is not well documentmented, so there
4430 may be bugs and some surprising interactions with other flags. */
4431 if (som_section_data (sym->section)
4432 && som_section_data (sym->section)->subspace_dict
4433 && info->symbol_scope == SS_UNIVERSAL
4434 && (info->symbol_type == ST_ENTRY
4435 || info->symbol_type == ST_CODE
4436 || info->symbol_type == ST_DATA))
4437 {
4438 info->is_comdat
4439 = som_section_data (sym->section)->subspace_dict->is_comdat;
4440 info->is_common
4441 = som_section_data (sym->section)->subspace_dict->is_common;
4442 info->dup_common
4443 = som_section_data (sym->section)->subspace_dict->dup_common;
4444 }
252b5132
RH		 4445}
4446
4447/* Build and write, in one big chunk, the entire symbol table for
4448 this BFD. */
4449
b34976b6 4450static bfd_boolean
116c20d2 4451som_build_and_write_symbol_table (bfd *abfd)
252b5132
RH		 4452{
4453 unsigned int num_syms = bfd_get_symcount (abfd);
4454 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4455 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
e1f000f6 4456 struct som_external_symbol_dictionary_record *som_symtab = NULL;
dc810e39
AM		 4457 unsigned int i;
4458 bfd_size_type symtab_size;
252b5132
RH		 4459
4460 /* Compute total symbol table size and allocate a chunk of memory
4461 to hold the symbol table as we build it. */
e5af2160
AM		 4462 som_symtab
4463 = bfd_zmalloc2 (num_syms,
4464 sizeof (struct som_external_symbol_dictionary_record));
4465 if (som_symtab == NULL && num_syms != 0)
252b5132 4466 goto error_return;
252b5132
RH		 4467
4468 /* Walk over each symbol. */
4469 for (i = 0; i < num_syms; i++)
4470 {
4471 struct som_misc_symbol_info info;
e1f000f6 4472 unsigned int flags;
252b5132 4473
6fa957a9
KH		 4474 /* This is really an index into the symbol strings table.
4475 By the time we get here, the index has already been
252b5132 4476 computed and stored into the name field in the BFD symbol. */
e1f000f6 4477 bfd_putb32 (som_symbol_data (bfd_syms[i])->stringtab_offset,
07d6d2b8 4478 som_symtab[i].name);
252b5132
RH		 4479
4480 /* Derive SOM information from the BFD symbol. */
4481 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4482
4483 /* Now use it. */
e1f000f6 4484 flags = (info.symbol_type << SOM_SYMBOL_TYPE_SH)
07d6d2b8
AM		 4485 | (info.symbol_scope << SOM_SYMBOL_SCOPE_SH)
4486 | (info.arg_reloc << SOM_SYMBOL_ARG_RELOC_SH)
4487 | (3 << SOM_SYMBOL_XLEAST_SH)
4488 | (info.secondary_def ? SOM_SYMBOL_SECONDARY_DEF : 0)
4489 | (info.is_common ? SOM_SYMBOL_IS_COMMON : 0)
4490 | (info.dup_common ? SOM_SYMBOL_DUP_COMMON : 0);
e1f000f6
TG		 4491 bfd_putb32 (flags, som_symtab[i].flags);
4492
4493 flags = (info.symbol_info << SOM_SYMBOL_SYMBOL_INFO_SH)
07d6d2b8 4494 | (info.is_comdat ? SOM_SYMBOL_IS_COMDAT : 0);
e1f000f6
TG		 4495 bfd_putb32 (flags, som_symtab[i].info);
4496 bfd_putb32 (info.symbol_value | info.priv_level,
07d6d2b8 4497 som_symtab[i].symbol_value);
252b5132
RH		 4498 }
4499
4500 /* Everything is ready, seek to the right location and
4501 scribble out the symbol table. */
4502 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
b34976b6 4503 return FALSE;
252b5132 4504
e5af2160
AM		 4505 symtab_size = num_syms;
4506 symtab_size *= sizeof (struct som_external_symbol_dictionary_record);
116c20d2 4507 if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
252b5132
RH		 4508 goto error_return;
4509
4510 if (som_symtab != NULL)
4511 free (som_symtab);
b34976b6 4512 return TRUE;
252b5132
RH		 4513 error_return:
4514 if (som_symtab != NULL)
4515 free (som_symtab);
b34976b6 4516 return FALSE;
252b5132
RH		 4517}
4518
6fa957a9 4519/* Write an object in SOM format. */
252b5132 4520
b34976b6 4521static bfd_boolean
116c20d2 4522som_write_object_contents (bfd *abfd)
252b5132 4523{
82e51918 4524 if (! abfd->output_has_begun)
252b5132
RH		 4525 {
4526 /* Set up fixed parts of the file, space, and subspace headers.
4527 Notify the world that output has begun. */
4528 som_prep_headers (abfd);
b34976b6 4529 abfd->output_has_begun = TRUE;
252b5132
RH		 4530 /* Start writing the object file. This include all the string
4531 tables, fixup streams, and other portions of the object file. */
4532 som_begin_writing (abfd);
4533 }
4534
116c20d2 4535 return som_finish_writing (abfd);
252b5132 4536}
252b5132
RH		 4537\f
4538/* Read and save the string table associated with the given BFD. */
4539
b34976b6 4540static bfd_boolean
116c20d2 4541som_slurp_string_table (bfd *abfd)
252b5132
RH		 4542{
4543 char *stringtab;
dc810e39 4544 bfd_size_type amt;
252b5132
RH		 4545
4546 /* Use the saved version if its available. */
4547 if (obj_som_stringtab (abfd) != NULL)
b34976b6 4548 return TRUE;
252b5132
RH		 4549
4550 /* I don't think this can currently happen, and I'm not sure it should
4551 really be an error, but it's better than getting unpredictable results
4552 from the host's malloc when passed a size of zero. */
4553 if (obj_som_stringtab_size (abfd) == 0)
4554 {
4555 bfd_set_error (bfd_error_no_symbols);
b34976b6 4556 return FALSE;
252b5132
RH		 4557 }
4558
4559 /* Allocate and read in the string table. */
dc810e39 4560 amt = obj_som_stringtab_size (abfd);
9bab7074 4561 stringtab = bfd_zmalloc (amt);
252b5132 4562 if (stringtab == NULL)
b34976b6 4563 return FALSE;
252b5132 4564
dc810e39 4565 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
b34976b6 4566 return FALSE;
6fa957a9 4567
dc810e39 4568 if (bfd_bread (stringtab, amt, abfd) != amt)
b34976b6 4569 return FALSE;
252b5132 4570
6fa957a9 4571 /* Save our results and return success. */
252b5132 4572 obj_som_stringtab (abfd) = stringtab;
b34976b6 4573 return TRUE;
252b5132
RH		 4574}
4575
4576/* Return the amount of data (in bytes) required to hold the symbol
4577 table for this object. */
4578
4579static long
116c20d2 4580som_get_symtab_upper_bound (bfd *abfd)
252b5132
RH		 4581{
4582 if (!som_slurp_symbol_table (abfd))
4583 return -1;
4584
116c20d2 4585 return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
252b5132
RH		 4586}
4587
4588/* Convert from a SOM subspace index to a BFD section. */
4589
36192a8d 4590asection *
e1f000f6
TG		 4591bfd_section_from_som_symbol
4592 (bfd *abfd, struct som_external_symbol_dictionary_record *symbol)
252b5132
RH		 4593{
4594 asection *section;
e1f000f6
TG		 4595 unsigned int flags = bfd_getb32 (symbol->flags);
4596 unsigned int symbol_type = (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
252b5132
RH		 4597
4598 /* The meaning of the symbol_info field changes for functions
4599 within executables. So only use the quick symbol_info mapping for
4600 incomplete objects and non-function symbols in executables. */
4601 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
e1f000f6
TG		 4602 || (symbol_type != ST_ENTRY
4603 && symbol_type != ST_PRI_PROG
4604 && symbol_type != ST_SEC_PROG
4605 && symbol_type != ST_MILLICODE))
252b5132 4606 {
e1f000f6 4607 int idx = (bfd_getb32 (symbol->info) >> SOM_SYMBOL_SYMBOL_INFO_SH)
07d6d2b8 4608 & SOM_SYMBOL_SYMBOL_INFO_MASK;
116c20d2 4609
252b5132 4610 for (section = abfd->sections; section != NULL; section = section->next)
f664f618 4611 if (section->target_index == idx && som_is_subspace (section))
252b5132 4612 return section;
252b5132
RH		 4613 }
4614 else
4615 {
e1f000f6 4616 unsigned int value = bfd_getb32 (symbol->symbol_value);
252b5132
RH		 4617
4618 /* For executables we will have to use the symbol's address and
4619 find out what section would contain that address. Yuk. */
4620 for (section = abfd->sections; section; section = section->next)
116c20d2
NC		 4621 if (value >= section->vma
4622 && value <= section->vma + section->size
4623 && som_is_subspace (section))
4624 return section;
252b5132 4625 }
116c20d2
NC		 4626
4627 /* Could be a symbol from an external library (such as an OMOS
4628 shared library). Don't abort. */
4629 return bfd_abs_section_ptr;
252b5132
RH		 4630}
4631
4632/* Read and save the symbol table associated with the given BFD. */
4633
4634static unsigned int
116c20d2 4635som_slurp_symbol_table (bfd *abfd)
252b5132
RH		 4636{
4637 int symbol_count = bfd_get_symcount (abfd);
e1f000f6 4638 int symsize = sizeof (struct som_external_symbol_dictionary_record);
252b5132 4639 char *stringtab;
e1f000f6 4640 struct som_external_symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
252b5132 4641 som_symbol_type *sym, *symbase;
dc810e39 4642 bfd_size_type amt;
252b5132
RH		 4643
4644 /* Return saved value if it exists. */
4645 if (obj_som_symtab (abfd) != NULL)
4646 goto successful_return;
4647
4648 /* Special case. This is *not* an error. */
4649 if (symbol_count == 0)
4650 goto successful_return;
4651
4652 if (!som_slurp_string_table (abfd))
4653 goto error_return;
4654
4655 stringtab = obj_som_stringtab (abfd);
4656
e5af2160 4657 symbase = bfd_zmalloc2 (symbol_count, sizeof (som_symbol_type));
252b5132
RH		 4658 if (symbase == NULL)
4659 goto error_return;
252b5132
RH		 4660
4661 /* Read in the external SOM representation. */
e5af2160
AM		 4662 buf = bfd_malloc2 (symbol_count, symsize);
4663 if (buf == NULL)
252b5132 4664 goto error_return;
dc810e39 4665 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
252b5132 4666 goto error_return;
e5af2160
AM		 4667 amt = symbol_count;
4668 amt *= symsize;
dc810e39 4669 if (bfd_bread (buf, amt, abfd) != amt)
252b5132
RH		 4670 goto error_return;
4671
4672 /* Iterate over all the symbols and internalize them. */
4673 endbufp = buf + symbol_count;
4674 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4675 {
e1f000f6
TG		 4676 unsigned int flags = bfd_getb32 (bufp->flags);
4677 unsigned int symbol_type =
07d6d2b8 4678 (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
e1f000f6 4679 unsigned int symbol_scope =
07d6d2b8 4680 (flags >> SOM_SYMBOL_SCOPE_SH) & SOM_SYMBOL_SCOPE_MASK;
e1f000f6 4681
252b5132 4682 /* I don't think we care about these. */
e1f000f6 4683 if (symbol_type == ST_SYM_EXT || symbol_type == ST_ARG_EXT)
252b5132
RH		 4684 continue;
4685
4686 /* Set some private data we care about. */
e1f000f6 4687 if (symbol_type == ST_NULL)
252b5132 4688 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
e1f000f6 4689 else if (symbol_type == ST_ABSOLUTE)
252b5132 4690 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
e1f000f6 4691 else if (symbol_type == ST_DATA)
252b5132 4692 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
e1f000f6 4693 else if (symbol_type == ST_CODE)
252b5132 4694 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
e1f000f6 4695 else if (symbol_type == ST_PRI_PROG)
252b5132 4696 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
e1f000f6 4697 else if (symbol_type == ST_SEC_PROG)
252b5132 4698 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
e1f000f6 4699 else if (symbol_type == ST_ENTRY)
252b5132 4700 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
e1f000f6 4701 else if (symbol_type == ST_MILLICODE)
252b5132 4702 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
e1f000f6 4703 else if (symbol_type == ST_PLABEL)
252b5132
RH		 4704 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4705 else
4706 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
e1f000f6 4707 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc =
07d6d2b8 4708 (flags >> SOM_SYMBOL_ARG_RELOC_SH) & SOM_SYMBOL_ARG_RELOC_MASK;
252b5132
RH		 4709
4710 /* Some reasonable defaults. */
4711 sym->symbol.the_bfd = abfd;
e1f000f6
TG		 4712 sym->symbol.name = bfd_getb32 (bufp->name) + stringtab;
4713 sym->symbol.value = bfd_getb32 (bufp->symbol_value);
252b5132
RH		 4714 sym->symbol.section = 0;
4715 sym->symbol.flags = 0;
4716
e1f000f6 4717 switch (symbol_type)
252b5132
RH		 4718 {
4719 case ST_ENTRY:
4720 case ST_MILLICODE:
4721 sym->symbol.flags |= BSF_FUNCTION;
4722 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4723 sym->symbol.value & 0x3;
4724 sym->symbol.value &= ~0x3;
4725 break;
4726
4727 case ST_STUB:
4728 case ST_CODE:
4729 case ST_PRI_PROG:
4730 case ST_SEC_PROG:
4731 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4732 sym->symbol.value & 0x3;
4733 sym->symbol.value &= ~0x3;
7da1b175 4734 /* If the symbol's scope is SS_UNSAT, then these are
252b5132 4735 undefined function symbols. */
e1f000f6 4736 if (symbol_scope == SS_UNSAT)
252b5132 4737 sym->symbol.flags |= BSF_FUNCTION;
252b5132
RH		 4738
4739 default:
4740 break;
4741 }
4742
4743 /* Handle scoping and section information. */
e1f000f6 4744 switch (symbol_scope)
252b5132
RH		 4745 {
4746 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4747 so the section associated with this symbol can't be known. */
4748 case SS_EXTERNAL:
e1f000f6 4749 if (symbol_type != ST_STORAGE)
252b5132
RH		 4750 sym->symbol.section = bfd_und_section_ptr;
4751 else
4752 sym->symbol.section = bfd_com_section_ptr;
4753 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4754 break;
4755
4756 case SS_UNSAT:
e1f000f6 4757 if (symbol_type != ST_STORAGE)
252b5132
RH		 4758 sym->symbol.section = bfd_und_section_ptr;
4759 else
4760 sym->symbol.section = bfd_com_section_ptr;
4761 break;
4762
4763 case SS_UNIVERSAL:
4764 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4765 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4766 sym->symbol.value -= sym->symbol.section->vma;
4767 break;
4768
252b5132
RH		 4769 case SS_LOCAL:
4770 sym->symbol.flags |= BSF_LOCAL;
4771 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4772 sym->symbol.value -= sym->symbol.section->vma;
4773 break;
4774 }
4775
ba20314e 4776 /* Check for a weak symbol. */
e1f000f6 4777 if (flags & SOM_SYMBOL_SECONDARY_DEF)
7eae7d22 4778 sym->symbol.flags |= BSF_WEAK;
ba20314e 4779
252b5132
RH		 4780 /* Mark section symbols and symbols used by the debugger.
4781 Note $START$ is a magic code symbol, NOT a section symbol. */
4782 if (sym->symbol.name[0] == '$'
4783 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4784 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4785 sym->symbol.flags |= BSF_SECTION_SYM;
0112cd26 4786 else if (CONST_STRNEQ (sym->symbol.name, "L$0\002"))
252b5132
RH		 4787 {
4788 sym->symbol.flags |= BSF_SECTION_SYM;
4789 sym->symbol.name = sym->symbol.section->name;
4790 }
0112cd26 4791 else if (CONST_STRNEQ (sym->symbol.name, "L$0\001"))
252b5132
RH		 4792 sym->symbol.flags |= BSF_DEBUGGING;
4793
4794 /* Note increment at bottom of loop, since we skip some symbols
b34976b6 4795 we can not include it as part of the for statement. */
252b5132
RH		 4796 sym++;
4797 }
4798
4799 /* We modify the symbol count to record the number of BFD symbols we
4800 created. */
ed48ec2e 4801 abfd->symcount = sym - symbase;
252b5132
RH		 4802
4803 /* Save our results and return success. */
4804 obj_som_symtab (abfd) = symbase;
4805 successful_return:
4806 if (buf != NULL)
4807 free (buf);
b34976b6 4808 return (TRUE);
252b5132
RH		 4809
4810 error_return:
4811 if (buf != NULL)
4812 free (buf);
b34976b6 4813 return FALSE;
252b5132
RH		 4814}
4815
4816/* Canonicalize a SOM symbol table. Return the number of entries
4817 in the symbol table. */
4818
4819static long
116c20d2 4820som_canonicalize_symtab (bfd *abfd, asymbol **location)
252b5132
RH		 4821{
4822 int i;
4823 som_symbol_type *symbase;
4824
4825 if (!som_slurp_symbol_table (abfd))
4826 return -1;
4827
4828 i = bfd_get_symcount (abfd);
4829 symbase = obj_som_symtab (abfd);
4830
4831 for (; i > 0; i--, location++, symbase++)
4832 *location = &symbase->symbol;
4833
4834 /* Final null pointer. */
4835 *location = 0;
4836 return (bfd_get_symcount (abfd));
4837}
4838
4839/* Make a SOM symbol. There is nothing special to do here. */
4840
4841static asymbol *
116c20d2 4842som_make_empty_symbol (bfd *abfd)
252b5132 4843{
dc810e39 4844 bfd_size_type amt = sizeof (som_symbol_type);
d3ce72d0 4845 som_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt);
116c20d2 4846
d3ce72d0 4847 if (new_symbol_type == NULL)
116c20d2 4848 return NULL;
d3ce72d0 4849 new_symbol_type->symbol.the_bfd = abfd;
252b5132 4850
d3ce72d0 4851 return &new_symbol_type->symbol;
252b5132
RH		 4852}
4853
4854/* Print symbol information. */
4855
4856static void
116c20d2 4857som_print_symbol (bfd *abfd,
6a808a40 4858 void *afile,
116c20d2
NC		 4859 asymbol *symbol,
4860 bfd_print_symbol_type how)
252b5132
RH		 4861{
4862 FILE *file = (FILE *) afile;
116c20d2 4863
252b5132
RH		 4864 switch (how)
4865 {
4866 case bfd_print_symbol_name:
4867 fprintf (file, "%s", symbol->name);
4868 break;
4869 case bfd_print_symbol_more:
4870 fprintf (file, "som ");
4871 fprintf_vma (file, symbol->value);
4872 fprintf (file, " %lx", (long) symbol->flags);
4873 break;
4874 case bfd_print_symbol_all:
4875 {
dc810e39 4876 const char *section_name;
116c20d2 4877
252b5132 4878 section_name = symbol->section ? symbol->section->name : "(*none*)";
116c20d2 4879 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
252b5132
RH		 4880 fprintf (file, " %s\t%s", section_name, symbol->name);
4881 break;
4882 }
4883 }
4884}
4885
b34976b6 4886static bfd_boolean
116c20d2
NC		 4887som_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
4888 const char *name)
252b5132 4889{
116c20d2 4890 return name[0] == 'L' && name[1] == '$';
252b5132
RH		 4891}
4892
4893/* Count or process variable-length SOM fixup records.
4894
4895 To avoid code duplication we use this code both to compute the number
4896 of relocations requested by a stream, and to internalize the stream.
4897
4898 When computing the number of relocations requested by a stream the
4899 variables rptr, section, and symbols have no meaning.
4900
4901 Return the number of relocations requested by the fixup stream. When
6fa957a9 4902 not just counting
252b5132
RH		 4903
4904 This needs at least two or three more passes to get it cleaned up. */
4905
4906static unsigned int
116c20d2
NC		 4907som_set_reloc_info (unsigned char *fixup,
4908 unsigned int end,
4909 arelent *internal_relocs,
4910 asection *section,
4911 asymbol **symbols,
4912 bfd_boolean just_count)
252b5132
RH		 4913{
4914 unsigned int op, varname, deallocate_contents = 0;
4915 unsigned char *end_fixups = &fixup[end];
4916 const struct fixup_format *fp;
7dca057b 4917 const char *cp;
252b5132
RH		 4918 unsigned char *save_fixup;
4919 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4920 const int *subop;
7eae7d22 4921 arelent *rptr = internal_relocs;
252b5132
RH		 4922 unsigned int offset = 0;
4923
4924#define var(c) variables[(c) - 'A']
4925#define push(v) (*sp++ = (v))
4926#define pop() (*--sp)
4927#define emptystack() (sp == stack)
4928
4929 som_initialize_reloc_queue (reloc_queue);
4930 memset (variables, 0, sizeof (variables));
4931 memset (stack, 0, sizeof (stack));
4932 count = 0;
4933 prev_fixup = 0;
4934 saved_unwind_bits = 0;
4935 sp = stack;
4936
4937 while (fixup < end_fixups)
4938 {
252b5132
RH		 4939 /* Save pointer to the start of this fixup. We'll use
4940 it later to determine if it is necessary to put this fixup
4941 on the queue. */
4942 save_fixup = fixup;
4943
4944 /* Get the fixup code and its associated format. */
4945 op = *fixup++;
4946 fp = &som_fixup_formats[op];
4947
4948 /* Handle a request for a previous fixup. */
4949 if (*fp->format == 'P')
4950 {
4951 /* Get pointer to the beginning of the prev fixup, move
4952 the repeated fixup to the head of the queue. */
4953 fixup = reloc_queue[fp->D].reloc;
4954 som_reloc_queue_fix (reloc_queue, fp->D);
4955 prev_fixup = 1;
4956
4957 /* Get the fixup code and its associated format. */
4958 op = *fixup++;
4959 fp = &som_fixup_formats[op];
4960 }
4961
4962 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4963 if (! just_count
4964 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4965 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4966 {
4967 rptr->address = offset;
4968 rptr->howto = &som_hppa_howto_table[op];
4969 rptr->addend = 0;
4970 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4971 }
4972
4973 /* Set default input length to 0. Get the opcode class index
4974 into D. */
4975 var ('L') = 0;
4976 var ('D') = fp->D;
4977 var ('U') = saved_unwind_bits;
4978
4979 /* Get the opcode format. */
4980 cp = fp->format;
4981
4982 /* Process the format string. Parsing happens in two phases,
6fa957a9 4983 parse RHS, then assign to LHS. Repeat until no more
252b5132
RH		 4984 characters in the format string. */
4985 while (*cp)
4986 {
4987 /* The variable this pass is going to compute a value for. */
4988 varname = *cp++;
4989
4990 /* Start processing RHS. Continue until a NULL or '=' is found. */
4991 do
4992 {
4993 c = *cp++;
4994
4995 /* If this is a variable, push it on the stack. */
3882b010 4996 if (ISUPPER (c))
252b5132
RH		 4997 push (var (c));
4998
4999 /* If this is a lower case letter, then it represents
5000 additional data from the fixup stream to be pushed onto
5001 the stack. */
3882b010 5002 else if (ISLOWER (c))
252b5132
RH		 5003 {
5004 int bits = (c - 'a') * 8;
5005 for (v = 0; c > 'a'; --c)
5006 v = (v << 8) | *fixup++;
5007 if (varname == 'V')
5008 v = sign_extend (v, bits);
5009 push (v);
5010 }
5011
5012 /* A decimal constant. Push it on the stack. */
3882b010 5013 else if (ISDIGIT (c))
252b5132
RH		 5014 {
5015 v = c - '0';
3882b010 5016 while (ISDIGIT (*cp))
252b5132
RH		 5017 v = (v * 10) + (*cp++ - '0');
5018 push (v);
5019 }
5020 else
de194d85 5021 /* An operator. Pop two values from the stack and
252b5132
RH		 5022 use them as operands to the given operation. Push
5023 the result of the operation back on the stack. */
5024 switch (c)
5025 {
5026 case '+':
5027 v = pop ();
5028 v += pop ();
5029 push (v);
5030 break;
5031 case '*':
5032 v = pop ();
5033 v *= pop ();
5034 push (v);
5035 break;
5036 case '<':
5037 v = pop ();
5038 v = pop () << v;
5039 push (v);
5040 break;
5041 default:
5042 abort ();
5043 }
5044 }
5045 while (*cp && *cp != '=');
5046
5047 /* Move over the equal operator. */
5048 cp++;
5049
5050 /* Pop the RHS off the stack. */
5051 c = pop ();
5052
5053 /* Perform the assignment. */
5054 var (varname) = c;
5055
5056 /* Handle side effects. and special 'O' stack cases. */
5057 switch (varname)
5058 {
5059 /* Consume some bytes from the input space. */
5060 case 'L':
5061 offset += c;
5062 break;
5063 /* A symbol to use in the relocation. Make a note
5064 of this if we are not just counting. */
5065 case 'S':
5066 if (! just_count)
5067 rptr->sym_ptr_ptr = &symbols[c];
5068 break;
5069 /* Argument relocation bits for a function call. */
5070 case 'R':
5071 if (! just_count)
5072 {
5073 unsigned int tmp = var ('R');
5074 rptr->addend = 0;
5075
5076 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
5077 && R_PCREL_CALL + 10 > op)
5078 || (som_hppa_howto_table[op].type == R_ABS_CALL
5079 && R_ABS_CALL + 10 > op))
5080 {
5081 /* Simple encoding. */
5082 if (tmp > 4)
5083 {
5084 tmp -= 5;
5085 rptr->addend |= 1;
5086 }
5087 if (tmp == 4)
5088 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
5089 else if (tmp == 3)
5090 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
5091 else if (tmp == 2)
5092 rptr->addend |= 1 << 8 | 1 << 6;
5093 else if (tmp == 1)
5094 rptr->addend |= 1 << 8;
5095 }
5096 else
5097 {
5098 unsigned int tmp1, tmp2;
5099
5100 /* First part is easy -- low order two bits are
5101 directly copied, then shifted away. */
5102 rptr->addend = tmp & 0x3;
5103 tmp >>= 2;
5104
5105 /* Diving the result by 10 gives us the second
5106 part. If it is 9, then the first two words
5107 are a double precision paramater, else it is
5108 3 * the first arg bits + the 2nd arg bits. */
5109 tmp1 = tmp / 10;
5110 tmp -= tmp1 * 10;
5111 if (tmp1 == 9)
5112 rptr->addend += (0xe << 6);
5113 else
5114 {
5115 /* Get the two pieces. */
5116 tmp2 = tmp1 / 3;
5117 tmp1 -= tmp2 * 3;
5118 /* Put them in the addend. */
5119 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
5120 }
5121
5122 /* What's left is the third part. It's unpacked
5123 just like the second. */
5124 if (tmp == 9)
5125 rptr->addend += (0xe << 2);
5126 else
5127 {
5128 tmp2 = tmp / 3;
5129 tmp -= tmp2 * 3;
5130 rptr->addend += (tmp2 << 4) + (tmp << 2);
5131 }
5132 }
5133 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
5134 }
5135 break;
5136 /* Handle the linker expression stack. */
5137 case 'O':
5138 switch (op)
5139 {
5140 case R_COMP1:
5141 subop = comp1_opcodes;
5142 break;
5143 case R_COMP2:
5144 subop = comp2_opcodes;
5145 break;
5146 case R_COMP3:
5147 subop = comp3_opcodes;
5148 break;
5149 default:
5150 abort ();
5151 }
5152 while (*subop <= (unsigned char) c)
5153 ++subop;
5154 --subop;
5155 break;
5156 /* The lower 32unwind bits must be persistent. */
5157 case 'U':
5158 saved_unwind_bits = var ('U');
5159 break;
5160
5161 default:
5162 break;
5163 }
5164 }
5165
5166 /* If we used a previous fixup, clean up after it. */
5167 if (prev_fixup)
5168 {
5169 fixup = save_fixup + 1;
5170 prev_fixup = 0;
5171 }
5172 /* Queue it. */
5173 else if (fixup > save_fixup + 1)
5174 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
5175
6fa957a9 5176 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
252b5132
RH		 5177 fixups to BFD. */
5178 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
5179 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
5180 {
5181 /* Done with a single reloction. Loop back to the top. */
5182 if (! just_count)
5183 {
5184 if (som_hppa_howto_table[op].type == R_ENTRY)
5185 rptr->addend = var ('T');
5186 else if (som_hppa_howto_table[op].type == R_EXIT)
5187 rptr->addend = var ('U');
5188 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
5189 || som_hppa_howto_table[op].type == R_ABS_CALL)
5190 ;
5191 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
5192 {
252b5132
RH		 5193 /* Try what was specified in R_DATA_OVERRIDE first
5194 (if anything). Then the hard way using the
5195 section contents. */
5196 rptr->addend = var ('V');
5197
5198 if (rptr->addend == 0 && !section->contents)
5199 {
5200 /* Got to read the damn contents first. We don't
b34976b6 5201 bother saving the contents (yet). Add it one
252b5132 5202 day if the need arises. */
22bfad37 5203 bfd_byte *contents;
eea6121a
AM		 5204 if (!bfd_malloc_and_get_section (section->owner, section,
5205 &contents))
5206 {
5207 if (contents != NULL)
5208 free (contents);
5209 return (unsigned) -1;
5210 }
5211 section->contents = contents;
252b5132 5212 deallocate_contents = 1;
252b5132
RH		 5213 }
5214 else if (rptr->addend == 0)
5215 rptr->addend = bfd_get_32 (section->owner,
5216 (section->contents
5217 + offset - var ('L')));
6fa957a9 5218
252b5132
RH		 5219 }
5220 else
5221 rptr->addend = var ('V');
5222 rptr++;
5223 }
5224 count++;
5225 /* Now that we've handled a "full" relocation, reset
5226 some state. */
5227 memset (variables, 0, sizeof (variables));
5228 memset (stack, 0, sizeof (stack));
5229 }
5230 }
5231 if (deallocate_contents)
5232 free (section->contents);
5233
5234 return count;
5235
5236#undef var
5237#undef push
5238#undef pop
5239#undef emptystack
5240}
5241
6fa957a9 5242/* Read in the relocs (aka fixups in SOM terms) for a section.
252b5132 5243
6fa957a9 5244 som_get_reloc_upper_bound calls this routine with JUST_COUNT
b34976b6 5245 set to TRUE to indicate it only needs a count of the number
252b5132
RH		 5246 of actual relocations. */
5247
b34976b6 5248static bfd_boolean
116c20d2
NC		 5249som_slurp_reloc_table (bfd *abfd,
5250 asection *section,
5251 asymbol **symbols,
5252 bfd_boolean just_count)
252b5132 5253{
a96afa0f 5254 unsigned char *external_relocs;
252b5132
RH		 5255 unsigned int fixup_stream_size;
5256 arelent *internal_relocs;
5257 unsigned int num_relocs;
dc810e39 5258 bfd_size_type amt;
252b5132
RH		 5259
5260 fixup_stream_size = som_section_data (section)->reloc_size;
5261 /* If there were no relocations, then there is nothing to do. */
5262 if (section->reloc_count == 0)
b34976b6 5263 return TRUE;
252b5132 5264
6fa957a9 5265 /* If reloc_count is -1, then the relocation stream has not been
252b5132 5266 parsed. We must do so now to know how many relocations exist. */
dc810e39 5267 if (section->reloc_count == (unsigned) -1)
252b5132 5268 {
dc810e39 5269 amt = fixup_stream_size;
116c20d2
NC		 5270 external_relocs = bfd_malloc (amt);
5271 if (external_relocs == NULL)
b34976b6 5272 return FALSE;
6fa957a9 5273 /* Read in the external forms. */
252b5132
RH		 5274 if (bfd_seek (abfd,
5275 obj_som_reloc_filepos (abfd) + section->rel_filepos,
5276 SEEK_SET)
5277 != 0)
b34976b6 5278 return FALSE;
dc810e39 5279 if (bfd_bread (external_relocs, amt, abfd) != amt)
b34976b6 5280 return FALSE;
252b5132
RH		 5281
5282 /* Let callers know how many relocations found.
5283 also save the relocation stream as we will
5284 need it again. */
5285 section->reloc_count = som_set_reloc_info (external_relocs,
5286 fixup_stream_size,
b34976b6 5287 NULL, NULL, NULL, TRUE);
252b5132
RH		 5288
5289 som_section_data (section)->reloc_stream = external_relocs;
5290 }
5291
5292 /* If the caller only wanted a count, then return now. */
5293 if (just_count)
b34976b6 5294 return TRUE;
252b5132
RH		 5295
5296 num_relocs = section->reloc_count;
5297 external_relocs = som_section_data (section)->reloc_stream;
5298 /* Return saved information about the relocations if it is available. */
116c20d2 5299 if (section->relocation != NULL)
b34976b6 5300 return TRUE;
252b5132 5301
e5af2160 5302 internal_relocs = bfd_zalloc2 (abfd, num_relocs, sizeof (arelent));
116c20d2 5303 if (internal_relocs == NULL)
b34976b6 5304 return FALSE;
252b5132
RH		 5305
5306 /* Process and internalize the relocations. */
5307 som_set_reloc_info (external_relocs, fixup_stream_size,
b34976b6 5308 internal_relocs, section, symbols, FALSE);
252b5132
RH		 5309
5310 /* We're done with the external relocations. Free them. */
5311 free (external_relocs);
5312 som_section_data (section)->reloc_stream = NULL;
5313
5314 /* Save our results and return success. */
5315 section->relocation = internal_relocs;
b34976b6 5316 return TRUE;
252b5132
RH		 5317}
5318
5319/* Return the number of bytes required to store the relocation
6fa957a9 5320 information associated with the given section. */
252b5132
RH		 5321
5322static long
116c20d2 5323som_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
252b5132
RH		 5324{
5325 /* If section has relocations, then read in the relocation stream
5326 and parse it to determine how many relocations exist. */
5327 if (asect->flags & SEC_RELOC)
5328 {
b34976b6 5329 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
252b5132
RH		 5330 return -1;
5331 return (asect->reloc_count + 1) * sizeof (arelent *);
5332 }
06dcabb0
NC		 5333
5334 /* There are no relocations. Return enough space to hold the
5335 NULL pointer which will be installed if som_canonicalize_reloc
5336 is called. */
5337 return sizeof (arelent *);
252b5132
RH		 5338}
5339
5340/* Convert relocations from SOM (external) form into BFD internal
5341 form. Return the number of relocations. */
5342
5343static long
116c20d2
NC		 5344som_canonicalize_reloc (bfd *abfd,
5345 sec_ptr section,
5346 arelent **relptr,
5347 asymbol **symbols)
252b5132
RH		 5348{
5349 arelent *tblptr;
5350 int count;
5351
b34976b6 5352 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
252b5132
RH		 5353 return -1;
5354
5355 count = section->reloc_count;
5356 tblptr = section->relocation;
5357
5358 while (count--)
5359 *relptr++ = tblptr++;
5360
116c20d2 5361 *relptr = NULL;
252b5132
RH		 5362 return section->reloc_count;
5363}
5364
6d00b590 5365extern const bfd_target hppa_som_vec;
252b5132
RH		 5366
5367/* A hook to set up object file dependent section information. */
5368
b34976b6 5369static bfd_boolean
116c20d2 5370som_new_section_hook (bfd *abfd, asection *newsect)
252b5132 5371{
252b5132 5372 if (!newsect->used_by_bfd)
f592407e
AM		 5373 {
5374 bfd_size_type amt = sizeof (struct som_section_data_struct);
5375
5376 newsect->used_by_bfd = bfd_zalloc (abfd, amt);
5377 if (!newsect->used_by_bfd)
5378 return FALSE;
5379 }
252b5132
RH		 5380 newsect->alignment_power = 3;
5381
7eae7d22 5382 /* We allow more than three sections internally. */
f592407e 5383 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 5384}
5385
5386/* Copy any private info we understand from the input symbol
5387 to the output symbol. */
5388
b34976b6 5389static bfd_boolean
116c20d2
NC		 5390som_bfd_copy_private_symbol_data (bfd *ibfd,
5391 asymbol *isymbol,
5392 bfd *obfd,
5393 asymbol *osymbol)
252b5132
RH		 5394{
5395 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5396 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5397
5398 /* One day we may try to grok other private data. */
5399 if (ibfd->xvec->flavour != bfd_target_som_flavour
5400 || obfd->xvec->flavour != bfd_target_som_flavour)
b34976b6 5401 return FALSE;
252b5132
RH		 5402
5403 /* The only private information we need to copy is the argument relocation
5404 bits. */
5405 output_symbol->tc_data.ap.hppa_arg_reloc =
5406 input_symbol->tc_data.ap.hppa_arg_reloc;
5407
b34976b6 5408 return TRUE;
252b5132
RH		 5409}
5410
5411/* Copy any private info we understand from the input section
5412 to the output section. */
7eae7d22 5413
b34976b6 5414static bfd_boolean
116c20d2
NC		 5415som_bfd_copy_private_section_data (bfd *ibfd,
5416 asection *isection,
5417 bfd *obfd,
5418 asection *osection)
252b5132 5419{
dc810e39
AM		 5420 bfd_size_type amt;
5421
252b5132
RH		 5422 /* One day we may try to grok other private data. */
5423 if (ibfd->xvec->flavour != bfd_target_som_flavour
5424 || obfd->xvec->flavour != bfd_target_som_flavour
5425 || (!som_is_space (isection) && !som_is_subspace (isection)))
b34976b6 5426 return TRUE;
252b5132 5427
dc810e39 5428 amt = sizeof (struct som_copyable_section_data_struct);
116c20d2 5429 som_section_data (osection)->copy_data = bfd_zalloc (obfd, amt);
252b5132 5430 if (som_section_data (osection)->copy_data == NULL)
b34976b6 5431 return FALSE;
252b5132
RH		 5432
5433 memcpy (som_section_data (osection)->copy_data,
5434 som_section_data (isection)->copy_data,
5435 sizeof (struct som_copyable_section_data_struct));
5436
5437 /* Reparent if necessary. */
5438 if (som_section_data (osection)->copy_data->container)
5439 som_section_data (osection)->copy_data->container =
5440 som_section_data (osection)->copy_data->container->output_section;
5441
b34976b6 5442 return TRUE;
252b5132
RH		 5443}
5444
5445/* Copy any private info we understand from the input bfd
5446 to the output bfd. */
5447
b34976b6 5448static bfd_boolean
116c20d2 5449som_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH		 5450{
5451 /* One day we may try to grok other private data. */
5452 if (ibfd->xvec->flavour != bfd_target_som_flavour
5453 || obfd->xvec->flavour != bfd_target_som_flavour)
b34976b6 5454 return TRUE;
252b5132
RH		 5455
5456 /* Allocate some memory to hold the data we need. */
116c20d2 5457 obj_som_exec_data (obfd) = bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
252b5132 5458 if (obj_som_exec_data (obfd) == NULL)
b34976b6 5459 return FALSE;
252b5132
RH		 5460
5461 /* Now copy the data. */
5462 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5463 sizeof (struct som_exec_data));
5464
b34976b6 5465 return TRUE;
252b5132
RH		 5466}
5467
e6dc21b6
MM		 5468/* Display the SOM header. */
5469
5470static bfd_boolean
5471som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
5472{
5473 struct som_exec_auxhdr *exec_header;
e1f000f6 5474 struct som_aux_id* auxhdr;
e6dc21b6
MM		 5475 FILE *f;
5476
5477 f = (FILE *) farg;
5478
5479 exec_header = obj_som_exec_hdr (abfd);
5480 if (exec_header)
5481 {
5482 fprintf (f, _("\nExec Auxiliary Header\n"));
5483 fprintf (f, " flags ");
5484 auxhdr = &exec_header->som_auxhdr;
5485 if (auxhdr->mandatory)
5486 fprintf (f, "mandatory ");
5487 if (auxhdr->copy)
5488 fprintf (f, "copy ");
5489 if (auxhdr->append)
5490 fprintf (f, "append ");
5491 if (auxhdr->ignore)
5492 fprintf (f, "ignore ");
5493 fprintf (f, "\n");
5494 fprintf (f, " type %#x\n", auxhdr->type);
5495 fprintf (f, " length %#x\n", auxhdr->length);
0858d3ec
JG		 5496
5497 /* Note that, depending on the HP-UX version, the following fields can be
07d6d2b8 5498 either ints, or longs. */
0858d3ec
JG		 5499
5500 fprintf (f, " text size %#lx\n", (long) exec_header->exec_tsize);
5501 fprintf (f, " text memory offset %#lx\n", (long) exec_header->exec_tmem);
5502 fprintf (f, " text file offset %#lx\n", (long) exec_header->exec_tfile);
5503 fprintf (f, " data size %#lx\n", (long) exec_header->exec_dsize);
5504 fprintf (f, " data memory offset %#lx\n", (long) exec_header->exec_dmem);
5505 fprintf (f, " data file offset %#lx\n", (long) exec_header->exec_dfile);
5506 fprintf (f, " bss size %#lx\n", (long) exec_header->exec_bsize);
5507 fprintf (f, " entry point %#lx\n", (long) exec_header->exec_entry);
5508 fprintf (f, " loader flags %#lx\n", (long) exec_header->exec_flags);
5509 fprintf (f, " bss initializer %#lx\n", (long) exec_header->exec_bfill);
e6dc21b6
MM		 5510 }
5511
5512 return TRUE;
5513}
5514
252b5132
RH		 5515/* Set backend info for sections which can not be described
5516 in the BFD data structures. */
5517
b34976b6 5518bfd_boolean
116c20d2
NC		 5519bfd_som_set_section_attributes (asection *section,
5520 int defined,
5521 int private,
5522 unsigned int sort_key,
5523 int spnum)
252b5132
RH		 5524{
5525 /* Allocate memory to hold the magic information. */
5526 if (som_section_data (section)->copy_data == NULL)
5527 {
dc810e39 5528 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
116c20d2
NC		 5529
5530 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
252b5132 5531 if (som_section_data (section)->copy_data == NULL)
b34976b6 5532 return FALSE;
252b5132
RH		 5533 }
5534 som_section_data (section)->copy_data->sort_key = sort_key;
5535 som_section_data (section)->copy_data->is_defined = defined;
5536 som_section_data (section)->copy_data->is_private = private;
5537 som_section_data (section)->copy_data->container = section;
5538 som_section_data (section)->copy_data->space_number = spnum;
b34976b6 5539 return TRUE;
252b5132
RH		 5540}
5541
6fa957a9 5542/* Set backend info for subsections which can not be described
252b5132
RH		 5543 in the BFD data structures. */
5544
b34976b6 5545bfd_boolean
116c20d2
NC		 5546bfd_som_set_subsection_attributes (asection *section,
5547 asection *container,
f664f618 5548 int access_ctr,
116c20d2
NC		 5549 unsigned int sort_key,
5550 int quadrant,
5551 int comdat,
5552 int common,
5553 int dup_common)
252b5132
RH		 5554{
5555 /* Allocate memory to hold the magic information. */
5556 if (som_section_data (section)->copy_data == NULL)
5557 {
dc810e39 5558 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
116c20d2
NC		 5559
5560 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
252b5132 5561 if (som_section_data (section)->copy_data == NULL)
b34976b6 5562 return FALSE;
252b5132
RH		 5563 }
5564 som_section_data (section)->copy_data->sort_key = sort_key;
f664f618 5565 som_section_data (section)->copy_data->access_control_bits = access_ctr;
252b5132
RH		 5566 som_section_data (section)->copy_data->quadrant = quadrant;
5567 som_section_data (section)->copy_data->container = container;
351e2b5a
DA		 5568 som_section_data (section)->copy_data->is_comdat = comdat;
5569 som_section_data (section)->copy_data->is_common = common;
5570 som_section_data (section)->copy_data->dup_common = dup_common;
b34976b6 5571 return TRUE;
252b5132
RH		 5572}
5573
5574/* Set the full SOM symbol type. SOM needs far more symbol information
5575 than any other object file format I'm aware of. It is mandatory
5576 to be able to know if a symbol is an entry point, millicode, data,
5577 code, absolute, storage request, or procedure label. If you get
5578 the symbol type wrong your program will not link. */
5579
5580void
116c20d2 5581bfd_som_set_symbol_type (asymbol *symbol, unsigned int type)
252b5132
RH		 5582{
5583 som_symbol_data (symbol)->som_type = type;
5584}
5585
5586/* Attach an auxiliary header to the BFD backend so that it may be
5587 written into the object file. */
7eae7d22 5588
b34976b6 5589bfd_boolean
116c20d2 5590bfd_som_attach_aux_hdr (bfd *abfd, int type, char *string)
252b5132 5591{
dc810e39
AM		 5592 bfd_size_type amt;
5593
252b5132
RH		 5594 if (type == VERSION_AUX_ID)
5595 {
dc810e39 5596 size_t len = strlen (string);
252b5132
RH		 5597 int pad = 0;
5598
5599 if (len % 4)
5600 pad = (4 - (len % 4));
e1f000f6 5601 amt = sizeof (struct som_string_auxhdr) + len + pad;
116c20d2 5602 obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
252b5132 5603 if (!obj_som_version_hdr (abfd))
b34976b6 5604 return FALSE;
252b5132 5605 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
e1f000f6 5606 obj_som_version_hdr (abfd)->header_id.length = 4 + len + pad;
252b5132 5607 obj_som_version_hdr (abfd)->string_length = len;
e1f000f6
TG		 5608 memcpy (obj_som_version_hdr (abfd)->string, string, len);
5609 memset (obj_som_version_hdr (abfd)->string + len, 0, pad);
252b5132
RH		 5610 }
5611 else if (type == COPYRIGHT_AUX_ID)
5612 {
e5af2160 5613 size_t len = strlen (string);
252b5132
RH		 5614 int pad = 0;
5615
5616 if (len % 4)
5617 pad = (4 - (len % 4));
e1f000f6 5618 amt = sizeof (struct som_string_auxhdr) + len + pad;
116c20d2 5619 obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
252b5132 5620 if (!obj_som_copyright_hdr (abfd))
b34976b6 5621 return FALSE;
252b5132 5622 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
e1f000f6 5623 obj_som_copyright_hdr (abfd)->header_id.length = len + pad + 4;
252b5132 5624 obj_som_copyright_hdr (abfd)->string_length = len;
e1f000f6
TG		 5625 memcpy (obj_som_copyright_hdr (abfd)->string, string, len);
5626 memset (obj_som_copyright_hdr (abfd)->string + len, 0, pad);
252b5132 5627 }
b34976b6 5628 return TRUE;
252b5132
RH		 5629}
5630
19852a2a 5631/* Attach a compilation unit header to the BFD backend so that it may be
252b5132
RH		 5632 written into the object file. */
5633
b34976b6 5634bfd_boolean
116c20d2
NC		 5635bfd_som_attach_compilation_unit (bfd *abfd,
5636 const char *name,
5637 const char *language_name,
5638 const char *product_id,
5639 const char *version_id)
252b5132 5640{
e1f000f6 5641 struct som_compilation_unit *n;
116c20d2 5642
e1f000f6
TG		 5643 n = (struct som_compilation_unit *) bfd_zalloc
5644 (abfd, (bfd_size_type) sizeof (*n));
252b5132 5645 if (n == NULL)
b34976b6 5646 return FALSE;
252b5132
RH		 5647
5648#define STRDUP(f) \
5649 if (f != NULL) \
5650 { \
e1f000f6
TG		 5651 n->f.name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5652 if (n->f.name == NULL) \
b34976b6 5653 return FALSE; \
e1f000f6 5654 strcpy (n->f.name, f); \
252b5132
RH		 5655 }
5656
5657 STRDUP (name);
5658 STRDUP (language_name);
5659 STRDUP (product_id);
5660 STRDUP (version_id);
5661
5662#undef STRDUP
5663
5664 obj_som_compilation_unit (abfd) = n;
5665
b34976b6 5666 return TRUE;
252b5132
RH		 5667}
5668
b34976b6 5669static bfd_boolean
116c20d2
NC		 5670som_get_section_contents (bfd *abfd,
5671 sec_ptr section,
6a808a40 5672 void *location,
116c20d2
NC		 5673 file_ptr offset,
5674 bfd_size_type count)
252b5132
RH		 5675{
5676 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
b34976b6 5677 return TRUE;
eea6121a 5678 if ((bfd_size_type) (offset+count) > section->size
dc810e39
AM		 5679 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5680 || bfd_bread (location, count, abfd) != count)
34f304a7 5681 return FALSE; /* On error. */
b34976b6 5682 return TRUE;
252b5132
RH		 5683}
5684
b34976b6 5685static bfd_boolean
116c20d2
NC		 5686som_set_section_contents (bfd *abfd,
5687 sec_ptr section,
6a808a40 5688 const void *location,
116c20d2
NC		 5689 file_ptr offset,
5690 bfd_size_type count)
252b5132 5691{
82e51918 5692 if (! abfd->output_has_begun)
252b5132
RH		 5693 {
5694 /* Set up fixed parts of the file, space, and subspace headers.
5695 Notify the world that output has begun. */
5696 som_prep_headers (abfd);
b34976b6 5697 abfd->output_has_begun = TRUE;
252b5132
RH		 5698 /* Start writing the object file. This include all the string
5699 tables, fixup streams, and other portions of the object file. */
5700 som_begin_writing (abfd);
5701 }
5702
5703 /* Only write subspaces which have "real" contents (eg. the contents
5704 are not generated at run time by the OS). */
5705 if (!som_is_subspace (section)
5706 || ((section->flags & SEC_HAS_CONTENTS) == 0))
b34976b6 5707 return TRUE;
252b5132
RH		 5708
5709 /* Seek to the proper offset within the object file and write the
5710 data. */
6fa957a9 5711 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
dc810e39 5712 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
b34976b6 5713 return FALSE;
252b5132 5714
5198ba8b 5715 if (bfd_bwrite (location, count, abfd) != count)
b34976b6
AM		 5716 return FALSE;
5717 return TRUE;
252b5132
RH		 5718}
5719
b34976b6 5720static bfd_boolean
116c20d2
NC		 5721som_set_arch_mach (bfd *abfd,
5722 enum bfd_architecture arch,
5723 unsigned long machine)
252b5132 5724{
7eae7d22 5725 /* Allow any architecture to be supported by the SOM backend. */
252b5132
RH		 5726 return bfd_default_set_arch_mach (abfd, arch, machine);
5727}
5728
b34976b6 5729static bfd_boolean
6119d252 5730som_find_nearest_line (bfd *abfd,
6119d252 5731 asymbol **symbols,
fb167eb2 5732 asection *section,
6119d252
NC		 5733 bfd_vma offset,
5734 const char **filename_ptr,
5735 const char **functionname_ptr,
fb167eb2
AM		 5736 unsigned int *line_ptr,
5737 unsigned int *discriminator_ptr)
252b5132 5738{
6119d252
NC		 5739 bfd_boolean found;
5740 asymbol *func;
5741 bfd_vma low_func;
5742 asymbol **p;
5743
fb167eb2
AM		 5744 if (discriminator_ptr)
5745 *discriminator_ptr = 0;
5746
6119d252 5747 if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
07d6d2b8
AM		 5748 & found, filename_ptr,
5749 functionname_ptr, line_ptr,
5750 & somdata (abfd).line_info))
6119d252
NC		 5751 return FALSE;
5752
5753 if (found)
5754 return TRUE;
5755
5756 if (symbols == NULL)
5757 return FALSE;
5758
5759 /* Fallback: find function name from symbols table. */
5760 func = NULL;
5761 low_func = 0;
5762
5763 for (p = symbols; *p != NULL; p++)
68ffbac6 5764 {
6119d252 5765 som_symbol_type *q = (som_symbol_type *) *p;
68ffbac6 5766
6119d252
NC		 5767 if (q->som_type == SYMBOL_TYPE_ENTRY
5768 && q->symbol.section == section
5769 && q->symbol.value >= low_func
5770 && q->symbol.value <= offset)
5771 {
5772 func = (asymbol *) q;
5773 low_func = q->symbol.value;
5774 }
5775 }
5776
5777 if (func == NULL)
5778 return FALSE;
5779
5780 *filename_ptr = NULL;
5781 *functionname_ptr = bfd_asymbol_name (func);
5782 *line_ptr = 0;
5783
5784 return TRUE;
252b5132
RH		 5785}
5786
5787static int
116c20d2 5788som_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
a6b96beb 5789 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132 5790{
4eca0228 5791 _bfd_error_handler (_("som_sizeof_headers unimplemented"));
252b5132 5792 abort ();
b34976b6 5793 return 0;
252b5132
RH		 5794}
5795
5796/* Return the single-character symbol type corresponding to
5797 SOM section S, or '?' for an unknown SOM section. */
5798
5799static char
116c20d2 5800som_section_type (const char *s)
252b5132
RH		 5801{
5802 const struct section_to_type *t;
5803
5804 for (t = &stt[0]; t->section; t++)
5805 if (!strcmp (s, t->section))
5806 return t->type;
5807 return '?';
5808}
5809
5810static int
116c20d2 5811som_decode_symclass (asymbol *symbol)
252b5132
RH		 5812{
5813 char c;
5814
5815 if (bfd_is_com_section (symbol->section))
5816 return 'C';
5817 if (bfd_is_und_section (symbol->section))
f29ba312
DA		 5818 {
5819 if (symbol->flags & BSF_WEAK)
5820 {
5821 /* If weak, determine if it's specifically an object
5822 or non-object weak. */
5823 if (symbol->flags & BSF_OBJECT)
5824 return 'v';
5825 else
5826 return 'w';
5827 }
5828 else
5829 return 'U';
5830 }
252b5132
RH		 5831 if (bfd_is_ind_section (symbol->section))
5832 return 'I';
10febd84 5833 if (symbol->flags & BSF_WEAK)
f29ba312
DA		 5834 {
5835 /* If weak, determine if it's specifically an object
5836 or non-object weak. */
5837 if (symbol->flags & BSF_OBJECT)
5838 return 'V';
5839 else
5840 return 'W';
5841 }
7eae7d22 5842 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
252b5132
RH		 5843 return '?';
5844
5845 if (bfd_is_abs_section (symbol->section)
5846 || (som_symbol_data (symbol) != NULL
5847 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5848 c = 'a';
5849 else if (symbol->section)
5850 c = som_section_type (symbol->section->name);
5851 else
5852 return '?';
5853 if (symbol->flags & BSF_GLOBAL)
3882b010 5854 c = TOUPPER (c);
252b5132
RH		 5855 return c;
5856}
5857
5858/* Return information about SOM symbol SYMBOL in RET. */
5859
5860static void
116c20d2
NC		 5861som_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
5862 asymbol *symbol,
5863 symbol_info *ret)
252b5132
RH		 5864{
5865 ret->type = som_decode_symclass (symbol);
5866 if (ret->type != 'U')
7eae7d22 5867 ret->value = symbol->value + symbol->section->vma;
252b5132
RH		 5868 else
5869 ret->value = 0;
5870 ret->name = symbol->name;
5871}
5872
5873/* Count the number of symbols in the archive symbol table. Necessary
5874 so that we can allocate space for all the carsyms at once. */
5875
b34976b6 5876static bfd_boolean
116c20d2 5877som_bfd_count_ar_symbols (bfd *abfd,
e1f000f6 5878 struct som_lst_header *lst_header,
116c20d2 5879 symindex *count)
252b5132
RH		 5880{
5881 unsigned int i;
e1f000f6 5882 unsigned char *hash_table;
dc810e39 5883 bfd_size_type amt;
e1f000f6 5884 file_ptr lst_filepos;
252b5132 5885
e1f000f6
TG		 5886 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5887
e5af2160
AM		 5888 hash_table = bfd_malloc2 (lst_header->hash_size, 4);
5889 if (hash_table == NULL && lst_header->hash_size != 0)
252b5132
RH		 5890 goto error_return;
5891
5892 /* Don't forget to initialize the counter! */
5893 *count = 0;
5894
5895 /* Read in the hash table. The has table is an array of 32bit file offsets
5896 which point to the hash chains. */
e5af2160 5897 amt = (bfd_size_type) lst_header->hash_size * 4;
116c20d2 5898 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
252b5132
RH		 5899 goto error_return;
5900
5901 /* Walk each chain counting the number of symbols found on that particular
5902 chain. */
5903 for (i = 0; i < lst_header->hash_size; i++)
5904 {
e1f000f6
TG		 5905 struct som_external_lst_symbol_record ext_lst_symbol;
5906 unsigned int hash_val = bfd_getb32 (hash_table + 4 * i);
252b5132
RH		 5907
5908 /* An empty chain has zero as it's file offset. */
e1f000f6 5909 if (hash_val == 0)
252b5132
RH		 5910 continue;
5911
5912 /* Seek to the first symbol in this hash chain. */
e1f000f6 5913 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
252b5132
RH		 5914 goto error_return;
5915
5916 /* Read in this symbol and update the counter. */
e1f000f6
TG		 5917 amt = sizeof (ext_lst_symbol);
5918 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
252b5132
RH		 5919 goto error_return;
5920
5921 (*count)++;
5922
5923 /* Now iterate through the rest of the symbols on this chain. */
e1f000f6 5924 while (1)
252b5132 5925 {
07d6d2b8 5926 unsigned int next_entry = bfd_getb32 (ext_lst_symbol.next_entry);
e1f000f6 5927
07d6d2b8
AM		 5928 if (next_entry == 0)
5929 break;
252b5132
RH		 5930
5931 /* Seek to the next symbol. */
e1f000f6 5932 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
252b5132
RH		 5933 goto error_return;
5934
5935 /* Read the symbol in and update the counter. */
e1f000f6
TG		 5936 amt = sizeof (ext_lst_symbol);
5937 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
252b5132
RH		 5938 goto error_return;
5939
5940 (*count)++;
5941 }
5942 }
5943 if (hash_table != NULL)
5944 free (hash_table);
b34976b6 5945 return TRUE;
252b5132
RH		 5946
5947 error_return:
5948 if (hash_table != NULL)
5949 free (hash_table);
b34976b6 5950 return FALSE;
252b5132
RH		 5951}
5952
5953/* Fill in the canonical archive symbols (SYMS) from the archive described
5954 by ABFD and LST_HEADER. */
5955
b34976b6 5956static bfd_boolean
116c20d2 5957som_bfd_fill_in_ar_symbols (bfd *abfd,
e1f000f6 5958 struct som_lst_header *lst_header,
116c20d2 5959 carsym **syms)
252b5132 5960{
e1f000f6 5961 unsigned int i;
252b5132 5962 carsym *set = syms[0];
e1f000f6
TG		 5963 unsigned char *hash_table;
5964 struct som_external_som_entry *som_dict = NULL;
dc810e39 5965 bfd_size_type amt;
e1f000f6
TG		 5966 file_ptr lst_filepos;
5967 unsigned int string_loc;
252b5132 5968
e1f000f6 5969 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
e5af2160
AM		 5970 hash_table = bfd_malloc2 (lst_header->hash_size, 4);
5971 if (hash_table == NULL && lst_header->hash_size != 0)
252b5132
RH		 5972 goto error_return;
5973
252b5132
RH		 5974 /* Read in the hash table. The has table is an array of 32bit file offsets
5975 which point to the hash chains. */
e5af2160 5976 amt = (bfd_size_type) lst_header->hash_size * 4;
116c20d2 5977 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
252b5132
RH		 5978 goto error_return;
5979
5980 /* Seek to and read in the SOM dictionary. We will need this to fill
5981 in the carsym's filepos field. */
dc810e39
AM		 5982 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5983 goto error_return;
5984
e5af2160
AM		 5985 som_dict = bfd_malloc2 (lst_header->module_count,
5986 sizeof (struct som_external_som_entry));
5987 if (som_dict == NULL && lst_header->module_count != 0)
252b5132
RH		 5988 goto error_return;
5989
e5af2160
AM		 5990 amt = lst_header->module_count;
5991 amt *= sizeof (struct som_external_som_entry);
116c20d2 5992 if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
252b5132
RH		 5993 goto error_return;
5994
e1f000f6
TG		 5995 string_loc = lst_header->string_loc;
5996
252b5132
RH		 5997 /* Walk each chain filling in the carsyms as we go along. */
5998 for (i = 0; i < lst_header->hash_size; i++)
5999 {
e1f000f6
TG		 6000 struct som_external_lst_symbol_record lst_symbol;
6001 unsigned int hash_val;
e5af2160 6002 size_t len;
e1f000f6 6003 unsigned char ext_len[4];
1d38e9d1 6004 char *name;
85d86817 6005 unsigned int ndx;
252b5132
RH		 6006
6007 /* An empty chain has zero as it's file offset. */
e1f000f6
TG		 6008 hash_val = bfd_getb32 (hash_table + 4 * i);
6009 if (hash_val == 0)
252b5132
RH		 6010 continue;
6011
6012 /* Seek to and read the first symbol on the chain. */
e1f000f6 6013 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
252b5132
RH		 6014 goto error_return;
6015
dc810e39 6016 amt = sizeof (lst_symbol);
116c20d2 6017 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
252b5132
RH		 6018 goto error_return;
6019
6020 /* Get the name of the symbol, first get the length which is stored
6021 as a 32bit integer just before the symbol.
6022
6023 One might ask why we don't just read in the entire string table
6024 and index into it. Well, according to the SOM ABI the string
6025 index can point *anywhere* in the archive to save space, so just
6026 using the string table would not be safe. */
e1f000f6 6027 if (bfd_seek (abfd, (lst_filepos + string_loc
07d6d2b8 6028 + bfd_getb32 (lst_symbol.name) - 4), SEEK_SET) != 0)
252b5132
RH		 6029 goto error_return;
6030
e1f000f6 6031 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
252b5132 6032 goto error_return;
e1f000f6 6033 len = bfd_getb32 (ext_len);
252b5132
RH		 6034
6035 /* Allocate space for the name and null terminate it too. */
e5af2160
AM		 6036 if (len == (size_t) -1)
6037 {
6038 bfd_set_error (bfd_error_no_memory);
6039 goto error_return;
6040 }
1d38e9d1
AM		 6041 name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6042 if (!name)
252b5132 6043 goto error_return;
1d38e9d1 6044 if (bfd_bread (name, (bfd_size_type) len, abfd) != len)
252b5132
RH		 6045 goto error_return;
6046
1d38e9d1
AM		 6047 name[len] = 0;
6048 set->name = name;
252b5132
RH		 6049
6050 /* Fill in the file offset. Note that the "location" field points
6051 to the SOM itself, not the ar_hdr in front of it. */
85d86817
AM		 6052 ndx = bfd_getb32 (lst_symbol.som_index);
6053 if (ndx >= lst_header->module_count)
6054 {
6055 bfd_set_error (bfd_error_bad_value);
6056 goto error_return;
6057 }
6058 set->file_offset
6059 = bfd_getb32 (som_dict[ndx].location) - sizeof (struct ar_hdr);
252b5132
RH		 6060
6061 /* Go to the next symbol. */
6062 set++;
6063
6064 /* Iterate through the rest of the chain. */
e1f000f6 6065 while (1)
252b5132 6066 {
07d6d2b8 6067 unsigned int next_entry = bfd_getb32 (lst_symbol.next_entry);
e1f000f6 6068
07d6d2b8
AM		 6069 if (next_entry == 0)
6070 break;
e1f000f6 6071
252b5132 6072 /* Seek to the next symbol and read it in. */
e1f000f6 6073 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
252b5132
RH		 6074 goto error_return;
6075
dc810e39 6076 amt = sizeof (lst_symbol);
116c20d2 6077 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
252b5132
RH		 6078 goto error_return;
6079
6080 /* Seek to the name length & string and read them in. */
e1f000f6 6081 if (bfd_seek (abfd, lst_filepos + string_loc
07d6d2b8 6082 + bfd_getb32 (lst_symbol.name) - 4, SEEK_SET) != 0)
252b5132
RH		 6083 goto error_return;
6084
e1f000f6 6085 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
252b5132 6086 goto error_return;
07d6d2b8 6087 len = bfd_getb32 (ext_len);
252b5132
RH		 6088
6089 /* Allocate space for the name and null terminate it too. */
e5af2160
AM		 6090 if (len == (size_t) -1)
6091 {
6092 bfd_set_error (bfd_error_no_memory);
6093 goto error_return;
6094 }
1d38e9d1
AM		 6095 name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6096 if (!name)
252b5132
RH		 6097 goto error_return;
6098
1d38e9d1 6099 if (bfd_bread (name, (bfd_size_type) len, abfd) != len)
252b5132 6100 goto error_return;
1d38e9d1
AM		 6101 name[len] = 0;
6102 set->name = name;
252b5132
RH		 6103
6104 /* Fill in the file offset. Note that the "location" field points
6105 to the SOM itself, not the ar_hdr in front of it. */
85d86817
AM		 6106 ndx = bfd_getb32 (lst_symbol.som_index);
6107 if (ndx >= lst_header->module_count)
6108 {
6109 bfd_set_error (bfd_error_bad_value);
6110 goto error_return;
6111 }
6112 set->file_offset
6113 = bfd_getb32 (som_dict[ndx].location) - sizeof (struct ar_hdr);
252b5132
RH		 6114
6115 /* Go on to the next symbol. */
6116 set++;
6117 }
6118 }
6fa957a9 6119 /* If we haven't died by now, then we successfully read the entire
252b5132
RH		 6120 archive symbol table. */
6121 if (hash_table != NULL)
6122 free (hash_table);
6123 if (som_dict != NULL)
6124 free (som_dict);
b34976b6 6125 return TRUE;
252b5132
RH		 6126
6127 error_return:
6128 if (hash_table != NULL)
6129 free (hash_table);
6130 if (som_dict != NULL)
6131 free (som_dict);
b34976b6 6132 return FALSE;
252b5132
RH		 6133}
6134
6135/* Read in the LST from the archive. */
7eae7d22 6136
b34976b6 6137static bfd_boolean
116c20d2 6138som_slurp_armap (bfd *abfd)
252b5132 6139{
e1f000f6
TG		 6140 struct som_external_lst_header ext_lst_header;
6141 struct som_lst_header lst_header;
252b5132
RH		 6142 struct ar_hdr ar_header;
6143 unsigned int parsed_size;
6144 struct artdata *ardata = bfd_ardata (abfd);
6145 char nextname[17];
dc810e39 6146 bfd_size_type amt = 16;
116c20d2 6147 int i = bfd_bread ((void *) nextname, amt, abfd);
252b5132
RH		 6148
6149 /* Special cases. */
6150 if (i == 0)
b34976b6 6151 return TRUE;
252b5132 6152 if (i != 16)
b34976b6 6153 return FALSE;
252b5132 6154
dc810e39 6155 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
b34976b6 6156 return FALSE;
252b5132
RH		 6157
6158 /* For archives without .o files there is no symbol table. */
0112cd26 6159 if (! CONST_STRNEQ (nextname, "/ "))
252b5132 6160 {
ed48ec2e 6161 abfd->has_armap = FALSE;
b34976b6 6162 return TRUE;
252b5132
RH		 6163 }
6164
6165 /* Read in and sanity check the archive header. */
dc810e39 6166 amt = sizeof (struct ar_hdr);
116c20d2 6167 if (bfd_bread ((void *) &ar_header, amt, abfd) != amt)
b34976b6 6168 return FALSE;
252b5132
RH		 6169
6170 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
6171 {
6172 bfd_set_error (bfd_error_malformed_archive);
b34976b6 6173 return FALSE;
252b5132
RH		 6174 }
6175
6176 /* How big is the archive symbol table entry? */
6177 errno = 0;
6178 parsed_size = strtol (ar_header.ar_size, NULL, 10);
6179 if (errno != 0)
6180 {
6181 bfd_set_error (bfd_error_malformed_archive);
b34976b6 6182 return FALSE;
252b5132
RH		 6183 }
6184
6185 /* Save off the file offset of the first real user data. */
6186 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
6187
6188 /* Read in the library symbol table. We'll make heavy use of this
6189 in just a minute. */
e1f000f6
TG		 6190 amt = sizeof (struct som_external_lst_header);
6191 if (bfd_bread ((void *) &ext_lst_header, amt, abfd) != amt)
b34976b6 6192 return FALSE;
252b5132 6193
e1f000f6
TG		 6194 som_swap_lst_header_in (&ext_lst_header, &lst_header);
6195
252b5132
RH		 6196 /* Sanity check. */
6197 if (lst_header.a_magic != LIBMAGIC)
6198 {
6199 bfd_set_error (bfd_error_malformed_archive);
b34976b6 6200 return FALSE;
252b5132
RH		 6201 }
6202
6203 /* Count the number of symbols in the library symbol table. */
82e51918 6204 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
b34976b6 6205 return FALSE;
252b5132
RH		 6206
6207 /* Get back to the start of the library symbol table. */
dc810e39 6208 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
e1f000f6 6209 + sizeof (struct som_external_lst_header)),
07d6d2b8 6210 SEEK_SET) != 0)
b34976b6 6211 return FALSE;
252b5132 6212
7dee875e 6213 /* Initialize the cache and allocate space for the library symbols. */
252b5132 6214 ardata->cache = 0;
e5af2160 6215 ardata->symdefs = bfd_alloc2 (abfd, ardata->symdef_count, sizeof (carsym));
252b5132 6216 if (!ardata->symdefs)
b34976b6 6217 return FALSE;
252b5132
RH		 6218
6219 /* Now fill in the canonical archive symbols. */
82e51918 6220 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
b34976b6 6221 return FALSE;
252b5132
RH		 6222
6223 /* Seek back to the "first" file in the archive. Note the "first"
6224 file may be the extended name table. */
dc810e39 6225 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
b34976b6 6226 return FALSE;
252b5132
RH		 6227
6228 /* Notify the generic archive code that we have a symbol map. */
ed48ec2e 6229 abfd->has_armap = TRUE;
b34976b6 6230 return TRUE;
252b5132
RH		 6231}
6232
6233/* Begin preparing to write a SOM library symbol table.
6234
6235 As part of the prep work we need to determine the number of symbols
6236 and the size of the associated string section. */
6237
b34976b6 6238static bfd_boolean
116c20d2
NC		 6239som_bfd_prep_for_ar_write (bfd *abfd,
6240 unsigned int *num_syms,
6241 unsigned int *stringsize)
252b5132
RH		 6242{
6243 bfd *curr_bfd = abfd->archive_head;
6244
6245 /* Some initialization. */
6246 *num_syms = 0;
6247 *stringsize = 0;
6248
6249 /* Iterate over each BFD within this archive. */
6250 while (curr_bfd != NULL)
6251 {
6252 unsigned int curr_count, i;
6253 som_symbol_type *sym;
6254
6255 /* Don't bother for non-SOM objects. */
6256 if (curr_bfd->format != bfd_object
6257 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6258 {
cc481421 6259 curr_bfd = curr_bfd->archive_next;
252b5132
RH		 6260 continue;
6261 }
6262
6263 /* Make sure the symbol table has been read, then snag a pointer
6264 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6265 but doing so avoids allocating lots of extra memory. */
82e51918 6266 if (! som_slurp_symbol_table (curr_bfd))
b34976b6 6267 return FALSE;
252b5132
RH		 6268
6269 sym = obj_som_symtab (curr_bfd);
6270 curr_count = bfd_get_symcount (curr_bfd);
6271
6272 /* Examine each symbol to determine if it belongs in the
6273 library symbol table. */
6274 for (i = 0; i < curr_count; i++, sym++)
6275 {
6276 struct som_misc_symbol_info info;
6277
6278 /* Derive SOM information from the BFD symbol. */
6279 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6280
6281 /* Should we include this symbol? */
6282 if (info.symbol_type == ST_NULL
6283 || info.symbol_type == ST_SYM_EXT
6284 || info.symbol_type == ST_ARG_EXT)
6285 continue;
6286
6287 /* Only global symbols and unsatisfied commons. */
6288 if (info.symbol_scope != SS_UNIVERSAL
6289 && info.symbol_type != ST_STORAGE)
6290 continue;
6291
6292 /* Do no include undefined symbols. */
6293 if (bfd_is_und_section (sym->symbol.section))
6294 continue;
6295
6296 /* Bump the various counters, being careful to honor
6297 alignment considerations in the string table. */
6298 (*num_syms)++;
e1f000f6 6299 *stringsize += strlen (sym->symbol.name) + 5;
252b5132
RH		 6300 while (*stringsize % 4)
6301 (*stringsize)++;
6302 }
6303
cc481421 6304 curr_bfd = curr_bfd->archive_next;
252b5132 6305 }
b34976b6 6306 return TRUE;
252b5132
RH		 6307}
6308
6309/* Hash a symbol name based on the hashing algorithm presented in the
6310 SOM ABI. */
7eae7d22 6311
252b5132 6312static unsigned int
116c20d2 6313som_bfd_ar_symbol_hash (asymbol *symbol)
252b5132
RH		 6314{
6315 unsigned int len = strlen (symbol->name);
6316
6317 /* Names with length 1 are special. */
6318 if (len == 1)
6319 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
6320
6321 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
7eae7d22 6322 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
252b5132
RH		 6323}
6324
6325/* Do the bulk of the work required to write the SOM library
6326 symbol table. */
6fa957a9 6327
b34976b6 6328static bfd_boolean
116c20d2
NC		 6329som_bfd_ar_write_symbol_stuff (bfd *abfd,
6330 unsigned int nsyms,
6331 unsigned int string_size,
e1f000f6 6332 struct som_external_lst_header lst,
116c20d2 6333 unsigned elength)
252b5132 6334{
252b5132 6335 char *strings = NULL, *p;
e1f000f6 6336 struct som_external_lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
252b5132 6337 bfd *curr_bfd;
e1f000f6
TG		 6338 unsigned char *hash_table = NULL;
6339 struct som_external_som_entry *som_dict = NULL;
6340 struct som_external_lst_symbol_record **last_hash_entry = NULL;
252b5132 6341 unsigned int curr_som_offset, som_index = 0;
dc810e39 6342 bfd_size_type amt;
e1f000f6
TG		 6343 unsigned int module_count;
6344 unsigned int hash_size;
252b5132 6345
e1f000f6 6346 hash_size = bfd_getb32 (lst.hash_size);
e5af2160 6347 hash_table = bfd_zmalloc2 (hash_size, 4);
e1f000f6 6348 if (hash_table == NULL && hash_size != 0)
252b5132 6349 goto error_return;
dc810e39 6350
e1f000f6 6351 module_count = bfd_getb32 (lst.module_count);
e5af2160 6352 som_dict = bfd_zmalloc2 (module_count, sizeof (struct som_external_som_entry));
e1f000f6 6353 if (som_dict == NULL && module_count != 0)
252b5132
RH		 6354 goto error_return;
6355
e5af2160
AM		 6356 last_hash_entry
6357 = bfd_zmalloc2 (hash_size, sizeof (struct som_external_lst_symbol_record *));
e1f000f6 6358 if (last_hash_entry == NULL && hash_size != 0)
252b5132
RH		 6359 goto error_return;
6360
252b5132
RH		 6361 /* Symbols have som_index fields, so we have to keep track of the
6362 index of each SOM in the archive.
6363
6364 The SOM dictionary has (among other things) the absolute file
6365 position for the SOM which a particular dictionary entry
6366 describes. We have to compute that information as we iterate
6367 through the SOMs/symbols. */
6368 som_index = 0;
6369
6370 /* We add in the size of the archive header twice as the location
6371 in the SOM dictionary is the actual offset of the SOM, not the
6372 archive header before the SOM. */
e1f000f6 6373 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + bfd_getb32 (lst.file_end);
252b5132
RH		 6374
6375 /* Make room for the archive header and the contents of the
6376 extended string table. Note that elength includes the size
6377 of the archive header for the extended name table! */
6378 if (elength)
6379 curr_som_offset += elength;
6380
6381 /* Make sure we're properly aligned. */
6382 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
6383
6fa957a9 6384 /* FIXME should be done with buffers just like everything else... */
e5af2160 6385 lst_syms = bfd_malloc2 (nsyms, sizeof (struct som_external_lst_symbol_record));
252b5132
RH		 6386 if (lst_syms == NULL && nsyms != 0)
6387 goto error_return;
dc810e39 6388 strings = bfd_malloc ((bfd_size_type) string_size);
252b5132
RH		 6389 if (strings == NULL && string_size != 0)
6390 goto error_return;
6391
6392 p = strings;
6393 curr_lst_sym = lst_syms;
6394
6395 curr_bfd = abfd->archive_head;
6396 while (curr_bfd != NULL)
6397 {
6398 unsigned int curr_count, i;
6399 som_symbol_type *sym;
6400
6401 /* Don't bother for non-SOM objects. */
6402 if (curr_bfd->format != bfd_object
6403 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6404 {
cc481421 6405 curr_bfd = curr_bfd->archive_next;
252b5132
RH		 6406 continue;
6407 }
6408
6409 /* Make sure the symbol table has been read, then snag a pointer
6410 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6411 but doing so avoids allocating lots of extra memory. */
82e51918 6412 if (! som_slurp_symbol_table (curr_bfd))
252b5132
RH		 6413 goto error_return;
6414
6415 sym = obj_som_symtab (curr_bfd);
6416 curr_count = bfd_get_symcount (curr_bfd);
6417
6418 for (i = 0; i < curr_count; i++, sym++)
6419 {
6420 struct som_misc_symbol_info info;
07d6d2b8
AM		 6421 struct som_external_lst_symbol_record *last;
6422 unsigned int symbol_pos;
6423 unsigned int slen;
6424 unsigned int symbol_key;
6425 unsigned int flags;
252b5132
RH		 6426
6427 /* Derive SOM information from the BFD symbol. */
6428 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6429
6430 /* Should we include this symbol? */
6431 if (info.symbol_type == ST_NULL
6432 || info.symbol_type == ST_SYM_EXT
6433 || info.symbol_type == ST_ARG_EXT)
6434 continue;
6435
6436 /* Only global symbols and unsatisfied commons. */
6437 if (info.symbol_scope != SS_UNIVERSAL
6438 && info.symbol_type != ST_STORAGE)
6439 continue;
6440
6441 /* Do no include undefined symbols. */
6442 if (bfd_is_und_section (sym->symbol.section))
6443 continue;
6444
6445 /* If this is the first symbol from this SOM, then update
6446 the SOM dictionary too. */
e1f000f6 6447 if (bfd_getb32 (som_dict[som_index].location) == 0)
252b5132 6448 {
e1f000f6
TG		 6449 bfd_putb32 (curr_som_offset, som_dict[som_index].location);
6450 bfd_putb32 (arelt_size (curr_bfd), som_dict[som_index].length);
252b5132
RH		 6451 }
6452
07d6d2b8 6453 symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
e1f000f6 6454
252b5132 6455 /* Fill in the lst symbol record. */
07d6d2b8
AM		 6456 flags = 0;
6457 if (info.secondary_def)
6458 flags |= LST_SYMBOL_SECONDARY_DEF;
6459 flags |= info.symbol_type << LST_SYMBOL_SYMBOL_TYPE_SH;
6460 flags |= info.symbol_scope << LST_SYMBOL_SYMBOL_SCOPE_SH;
6461 if (bfd_is_com_section (sym->symbol.section))
6462 flags |= LST_SYMBOL_IS_COMMON;
6463 if (info.dup_common)
6464 flags |= LST_SYMBOL_DUP_COMMON;
6465 flags |= 3 << LST_SYMBOL_XLEAST_SH;
6466 flags |= info.arg_reloc << LST_SYMBOL_ARG_RELOC_SH;
6467 bfd_putb32 (flags, curr_lst_sym->flags);
6468 bfd_putb32 (p - strings + 4, curr_lst_sym->name);
6469 bfd_putb32 (0, curr_lst_sym->qualifier_name);
6470 bfd_putb32 (info.symbol_info, curr_lst_sym->symbol_info);
6471 bfd_putb32 (info.symbol_value | info.priv_level,
6472 curr_lst_sym->symbol_value);
6473 bfd_putb32 (0, curr_lst_sym->symbol_descriptor);
6474 curr_lst_sym->reserved = 0;
6475 bfd_putb32 (som_index, curr_lst_sym->som_index);
6476 bfd_putb32 (symbol_key, curr_lst_sym->symbol_key);
6477 bfd_putb32 (0, curr_lst_sym->next_entry);
252b5132
RH		 6478
6479 /* Insert into the hash table. */
07d6d2b8
AM		 6480 symbol_pos =
6481 (curr_lst_sym - lst_syms)
6482 * sizeof (struct som_external_lst_symbol_record)
6483 + hash_size * 4
6484 + module_count * sizeof (struct som_external_som_entry)
6485 + sizeof (struct som_external_lst_header);
6486 last = last_hash_entry[symbol_key % hash_size];
e1f000f6 6487 if (last != NULL)
252b5132 6488 {
252b5132
RH		 6489 /* There is already something at the head of this hash chain,
6490 so tack this symbol onto the end of the chain. */
e1f000f6 6491 bfd_putb32 (symbol_pos, last->next_entry);
252b5132
RH		 6492 }
6493 else
116c20d2 6494 /* First entry in this hash chain. */
07d6d2b8 6495 bfd_putb32 (symbol_pos, hash_table + 4 * (symbol_key % hash_size));
252b5132
RH		 6496
6497 /* Keep track of the last symbol we added to this chain so we can
6498 easily update its next_entry pointer. */
07d6d2b8 6499 last_hash_entry[symbol_key % hash_size] = curr_lst_sym;
252b5132 6500
252b5132 6501 /* Update the string table. */
07d6d2b8 6502 slen = strlen (sym->symbol.name);
e1f000f6 6503 bfd_put_32 (abfd, slen, p);
252b5132 6504 p += 4;
07d6d2b8 6505 slen++; /* Nul terminator. */
e1f000f6
TG		 6506 memcpy (p, sym->symbol.name, slen);
6507 p += slen;
6508 while (slen % 4)
252b5132
RH		 6509 {
6510 bfd_put_8 (abfd, 0, p);
6511 p++;
07d6d2b8 6512 slen++;
252b5132 6513 }
07d6d2b8 6514 BFD_ASSERT (p <= strings + string_size);
252b5132
RH		 6515
6516 /* Head to the next symbol. */
6517 curr_lst_sym++;
6518 }
6519
6520 /* Keep track of where each SOM will finally reside; then look
6521 at the next BFD. */
6522 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6fa957a9 6523
252b5132
RH		 6524 /* A particular object in the archive may have an odd length; the
6525 linker requires objects begin on an even boundary. So round
6526 up the current offset as necessary. */
dc810e39 6527 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
cc481421 6528 curr_bfd = curr_bfd->archive_next;
252b5132
RH		 6529 som_index++;
6530 }
6531
6532 /* Now scribble out the hash table. */
e5af2160 6533 amt = (bfd_size_type) hash_size * 4;
116c20d2 6534 if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
252b5132
RH		 6535 goto error_return;
6536
6537 /* Then the SOM dictionary. */
e5af2160 6538 amt = (bfd_size_type) module_count * sizeof (struct som_external_som_entry);
116c20d2 6539 if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
252b5132
RH		 6540 goto error_return;
6541
6542 /* The library symbols. */
e5af2160 6543 amt = (bfd_size_type) nsyms * sizeof (struct som_external_lst_symbol_record);
116c20d2 6544 if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
252b5132
RH		 6545 goto error_return;
6546
6547 /* And finally the strings. */
dc810e39 6548 amt = string_size;
116c20d2 6549 if (bfd_bwrite ((void *) strings, amt, abfd) != amt)
252b5132
RH		 6550 goto error_return;
6551
6552 if (hash_table != NULL)
6553 free (hash_table);
6554 if (som_dict != NULL)
6555 free (som_dict);
6556 if (last_hash_entry != NULL)
6557 free (last_hash_entry);
6558 if (lst_syms != NULL)
6559 free (lst_syms);
6560 if (strings != NULL)
6561 free (strings);
b34976b6 6562 return TRUE;
252b5132
RH		 6563
6564 error_return:
6565 if (hash_table != NULL)
6566 free (hash_table);
6567 if (som_dict != NULL)
6568 free (som_dict);
6569 if (last_hash_entry != NULL)
6570 free (last_hash_entry);
6571 if (lst_syms != NULL)
6572 free (lst_syms);
6573 if (strings != NULL)
6574 free (strings);
6575
b34976b6 6576 return FALSE;
252b5132
RH		 6577}
6578
6579/* Write out the LST for the archive.
6580
6581 You'll never believe this is really how armaps are handled in SOM... */
6582
b34976b6 6583static bfd_boolean
116c20d2
NC		 6584som_write_armap (bfd *abfd,
6585 unsigned int elength,
6586 struct orl *map ATTRIBUTE_UNUSED,
6587 unsigned int orl_count ATTRIBUTE_UNUSED,
6588 int stridx ATTRIBUTE_UNUSED)
252b5132
RH		 6589{
6590 bfd *curr_bfd;
6591 struct stat statbuf;
6592 unsigned int i, lst_size, nsyms, stringsize;
6593 struct ar_hdr hdr;
e1f000f6
TG		 6594 struct som_external_lst_header lst;
6595 unsigned char *p;
dc810e39 6596 bfd_size_type amt;
e1f000f6
TG		 6597 unsigned int csum;
6598 unsigned int module_count;
6fa957a9 6599
252b5132
RH		 6600 /* We'll use this for the archive's date and mode later. */
6601 if (stat (abfd->filename, &statbuf) != 0)
6602 {
6603 bfd_set_error (bfd_error_system_call);
b34976b6 6604 return FALSE;
252b5132
RH		 6605 }
6606 /* Fudge factor. */
6607 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6608
6609 /* Account for the lst header first. */
e1f000f6 6610 lst_size = sizeof (struct som_external_lst_header);
252b5132
RH		 6611
6612 /* Start building the LST header. */
6613 /* FIXME: Do we need to examine each element to determine the
6614 largest id number? */
e1f000f6
TG		 6615 bfd_putb16 (CPU_PA_RISC1_0, &lst.system_id);
6616 bfd_putb16 (LIBMAGIC, &lst.a_magic);
6617 bfd_putb32 (VERSION_ID, &lst.version_id);
6618 bfd_putb32 (0, &lst.file_time.secs);
6619 bfd_putb32 (0, &lst.file_time.nanosecs);
252b5132 6620
e1f000f6
TG		 6621 bfd_putb32 (lst_size, &lst.hash_loc);
6622 bfd_putb32 (SOM_LST_HASH_SIZE, &lst.hash_size);
252b5132
RH		 6623
6624 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6625 lst_size += 4 * SOM_LST_HASH_SIZE;
6626
6627 /* We need to count the number of SOMs in this archive. */
6628 curr_bfd = abfd->archive_head;
e1f000f6 6629 module_count = 0;
252b5132
RH		 6630 while (curr_bfd != NULL)
6631 {
6632 /* Only true SOM objects count. */
6633 if (curr_bfd->format == bfd_object
6634 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
e1f000f6 6635 module_count++;
cc481421 6636 curr_bfd = curr_bfd->archive_next;
252b5132 6637 }
e1f000f6
TG		 6638 bfd_putb32 (module_count, &lst.module_count);
6639 bfd_putb32 (module_count, &lst.module_limit);
6640 bfd_putb32 (lst_size, &lst.dir_loc);
6641 lst_size += sizeof (struct som_external_som_entry) * module_count;
252b5132
RH		 6642
6643 /* We don't support import/export tables, auxiliary headers,
6644 or free lists yet. Make the linker work a little harder
6645 to make our life easier. */
6646
e1f000f6
TG		 6647 bfd_putb32 (0, &lst.export_loc);
6648 bfd_putb32 (0, &lst.export_count);
6649 bfd_putb32 (0, &lst.import_loc);
6650 bfd_putb32 (0, &lst.aux_loc);
6651 bfd_putb32 (0, &lst.aux_size);
252b5132
RH		 6652
6653 /* Count how many symbols we will have on the hash chains and the
6654 size of the associated string table. */
82e51918 6655 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
b34976b6 6656 return FALSE;
252b5132 6657
e1f000f6 6658 lst_size += sizeof (struct som_external_lst_symbol_record) * nsyms;
252b5132
RH		 6659
6660 /* For the string table. One day we might actually use this info
6661 to avoid small seeks/reads when reading archives. */
e1f000f6
TG		 6662 bfd_putb32 (lst_size, &lst.string_loc);
6663 bfd_putb32 (stringsize, &lst.string_size);
252b5132
RH		 6664 lst_size += stringsize;
6665
6666 /* SOM ABI says this must be zero. */
e1f000f6
TG		 6667 bfd_putb32 (0, &lst.free_list);
6668 bfd_putb32 (lst_size, &lst.file_end);
252b5132
RH		 6669
6670 /* Compute the checksum. Must happen after the entire lst header
6671 has filled in. */
e1f000f6
TG		 6672 p = (unsigned char *) &lst;
6673 csum = 0;
6674 for (i = 0; i < sizeof (struct som_external_lst_header) - sizeof (int);
6675 i += 4)
6676 csum ^= bfd_getb32 (&p[i]);
6677 bfd_putb32 (csum, &lst.checksum);
6678
6679 sprintf (hdr.ar_name, "/ ");
6680 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%-12ld",
07d6d2b8 6681 bfd_ardata (abfd)->armap_timestamp);
e1f000f6 6682 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld",
07d6d2b8 6683 statbuf.st_uid);
e1f000f6 6684 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld",
07d6d2b8 6685 statbuf.st_gid);
e1f000f6 6686 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-8o",
07d6d2b8 6687 (unsigned int)statbuf.st_mode);
e1f000f6 6688 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10d",
07d6d2b8 6689 (int) lst_size);
252b5132
RH		 6690 hdr.ar_fmag[0] = '`';
6691 hdr.ar_fmag[1] = '\012';
6692
6693 /* Turn any nulls into spaces. */
6694 for (i = 0; i < sizeof (struct ar_hdr); i++)
6695 if (((char *) (&hdr))[i] == '\0')
6696 (((char *) (&hdr))[i]) = ' ';
6697
6698 /* Scribble out the ar header. */
dc810e39 6699 amt = sizeof (struct ar_hdr);
116c20d2 6700 if (bfd_bwrite ((void *) &hdr, amt, abfd) != amt)
b34976b6 6701 return FALSE;
252b5132
RH		 6702
6703 /* Now scribble out the lst header. */
e1f000f6 6704 amt = sizeof (struct som_external_lst_header);
116c20d2 6705 if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
b34976b6 6706 return FALSE;
252b5132
RH		 6707
6708 /* Build and write the armap. */
dc810e39 6709 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
b34976b6 6710 return FALSE;
6fa957a9 6711
252b5132 6712 /* Done. */
b34976b6 6713 return TRUE;
252b5132
RH		 6714}
6715
6716/* Free all information we have cached for this BFD. We can always
6717 read it again later if we need it. */
6718
b34976b6 6719static bfd_boolean
116c20d2 6720som_bfd_free_cached_info (bfd *abfd)
252b5132 6721{
4decd602
AM		 6722 if (bfd_get_format (abfd) == bfd_object)
6723 {
6724 asection *o;
252b5132
RH		 6725
6726#define FREE(x) if (x != NULL) { free (x); x = NULL; }
4decd602
AM		 6727 /* Free the native string and symbol tables. */
6728 FREE (obj_som_symtab (abfd));
6729 FREE (obj_som_stringtab (abfd));
6730 for (o = abfd->sections; o != NULL; o = o->next)
6731 {
6732 /* Free the native relocations. */
6733 o->reloc_count = (unsigned) -1;
6734 FREE (som_section_data (o)->reloc_stream);
6735 /* Do not free the generic relocations as they are objalloc'ed. */
6736 }
252b5132 6737#undef FREE
4decd602 6738 }
252b5132 6739
4decd602 6740 return _bfd_generic_close_and_cleanup (abfd);
252b5132
RH		 6741}
6742
6fa957a9 6743/* End of miscellaneous support functions. */
252b5132
RH		 6744
6745/* Linker support functions. */
7eae7d22 6746
b34976b6 6747static bfd_boolean
116c20d2 6748som_bfd_link_split_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
252b5132 6749{
116c20d2 6750 return som_is_subspace (sec) && sec->size > 240000;
252b5132
RH		 6751}
6752
07d6d2b8 6753#define som_find_line _bfd_nosymbols_find_line
60bb06bc 6754#define som_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string
07d6d2b8
AM		 6755#define som_close_and_cleanup som_bfd_free_cached_info
6756#define som_read_ar_hdr _bfd_generic_read_ar_hdr
6757#define som_write_ar_hdr _bfd_generic_write_ar_hdr
6758#define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6759#define som_get_elt_at_index _bfd_generic_get_elt_at_index
6760#define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6761#define som_truncate_arname bfd_bsd_truncate_arname
6762#define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6763#define som_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
d00dd7dc
AM		 6764#define som_update_armap_timestamp _bfd_bool_bfd_true
6765#define som_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
07d6d2b8
AM		 6766#define som_get_lineno _bfd_nosymbols_get_lineno
6767#define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6768#define som_read_minisymbols _bfd_generic_read_minisymbols
6769#define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6770#define som_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
6771#define som_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
6772#define som_bfd_relax_section bfd_generic_relax_section
6773#define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6774#define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6775#define som_bfd_link_just_syms _bfd_generic_link_just_syms
1338dd10
PB		 6776#define som_bfd_copy_link_hash_symbol_type \
6777 _bfd_generic_copy_link_hash_symbol_type
07d6d2b8
AM		 6778#define som_bfd_final_link _bfd_generic_final_link
6779#define som_bfd_gc_sections bfd_generic_gc_sections
6780#define som_bfd_lookup_section_flags bfd_generic_lookup_section_flags
6781#define som_bfd_merge_sections bfd_generic_merge_sections
6782#define som_bfd_is_group_section bfd_generic_is_group_section
cb7f4b29 6783#define som_bfd_group_name bfd_generic_group_name
07d6d2b8
AM		 6784#define som_bfd_discard_group bfd_generic_discard_group
6785#define som_section_already_linked _bfd_generic_section_already_linked
6786#define som_bfd_define_common_symbol bfd_generic_define_common_symbol
34a87bb0 6787#define som_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
07d6d2b8 6788#define som_bfd_define_start_stop bfd_generic_define_start_stop
6a808a40
MK		 6789#define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
6790#define som_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
6791#define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
580a09db 6792#define som_find_inliner_info _bfd_nosymbols_find_inliner_info
07d6d2b8 6793#define som_bfd_link_check_relocs _bfd_generic_link_check_relocs
23186865 6794#define som_set_reloc _bfd_generic_set_reloc
116c20d2 6795
6d00b590 6796const bfd_target hppa_som_vec =
116c20d2
NC		 6797{
6798 "som", /* Name. */
252b5132 6799 bfd_target_som_flavour,
116c20d2
NC		 6800 BFD_ENDIAN_BIG, /* Target byte order. */
6801 BFD_ENDIAN_BIG, /* Target headers byte order. */
6802 (HAS_RELOC | EXEC_P | /* Object flags. */
252b5132
RH		 6803 HAS_LINENO | HAS_DEBUG |
6804 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
351e2b5a 6805 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
116c20d2 6806 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
252b5132 6807
116c20d2
NC		 6808 /* Leading_symbol_char: is the first char of a user symbol
6809 predictable, and if so what is it. */
252b5132 6810 0,
116c20d2
NC		 6811 '/', /* AR_pad_char. */
6812 14, /* AR_max_namelen. */
0aabe54e 6813 0, /* match priority. */
252b5132
RH		 6814 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6815 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 6816 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
252b5132
RH		 6817 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6818 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 6819 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
252b5132 6820 {_bfd_dummy_target,
116c20d2 6821 som_object_p, /* bfd_check_format. */
252b5132
RH		 6822 bfd_generic_archive_p,
6823 _bfd_dummy_target
6824 },
6825 {
d00dd7dc 6826 _bfd_bool_bfd_false_error,
252b5132
RH		 6827 som_mkobject,
6828 _bfd_generic_mkarchive,
d00dd7dc 6829 _bfd_bool_bfd_false_error
252b5132
RH		 6830 },
6831 {
d00dd7dc 6832 _bfd_bool_bfd_false_error,
252b5132
RH		 6833 som_write_object_contents,
6834 _bfd_write_archive_contents,
d00dd7dc 6835 _bfd_bool_bfd_false_error,
252b5132
RH		 6836 },
6837#undef som
6838
6839 BFD_JUMP_TABLE_GENERIC (som),
6840 BFD_JUMP_TABLE_COPY (som),
6841 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6842 BFD_JUMP_TABLE_ARCHIVE (som),
6843 BFD_JUMP_TABLE_SYMBOLS (som),
6844 BFD_JUMP_TABLE_RELOCS (som),
6845 BFD_JUMP_TABLE_WRITE (som),
6846 BFD_JUMP_TABLE_LINK (som),
6847 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6848
c3c89269 6849 NULL,
6fa957a9 6850
116c20d2 6851 NULL
252b5132
RH		 6852};
6853
GDB Binutils - Deliverables
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