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[deliverable/binutils-gdb.git] / bfd / som.c
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252b5132 1/* bfd back-end for HP PA-RISC SOM objects.
4b95cf5c 2 Copyright (C) 1990-2014 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"
252b5132 27
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,
1604 struct som_clock *dst)
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,
1612 struct som_external_clock *dst)
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,
1620 struct som_header *dst)
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,
1658 struct som_external_header *dst)
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,
1696 struct som_space_dictionary_record *dst)
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,
1721 struct som_external_space_dictionary_record *dst)
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,
1834 struct som_aux_id *dst)
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,
1848 struct som_external_aux_id *dst)
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,
1867 struct som_external_string_auxhdr *dst)
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,
1875 struct som_external_compilation_unit *dst)
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,
1888 struct som_exec_auxhdr *dst)
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,
1905 struct som_external_exec_auxhdr *dst)
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,
1922 struct som_lst_header *dst)
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 {
2034 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
2035 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
2036 }
2037 else
2038 {
2039 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
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
RH		 2046 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
2047 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
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
RH		 2076{
2077 char *space_strings;
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
AM		 2085 amt = file_hdr->space_strings_size;
2086 space_strings = bfd_malloc (amt);
2087 if (!space_strings && amt != 0)
252b5132
RH		 2088 goto error_return;
2089
6fa957a9 2090 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
dc810e39 2091 SEEK_SET) != 0)
252b5132 2092 goto error_return;
dc810e39 2093 if (bfd_bread (space_strings, amt, abfd) != amt)
252b5132
RH		 2094 goto error_return;
2095
7eae7d22 2096 /* Loop over all of the space dictionaries, building up sections. */
252b5132
RH		 2097 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
2098 {
e1f000f6
TG		 2099 struct som_space_dictionary_record space;
2100 struct som_external_space_dictionary_record ext_space;
2101 char *space_name;
2102 struct som_external_subspace_dictionary_record ext_subspace;
351e2b5a 2103 struct som_subspace_dictionary_record subspace, save_subspace;
5198ba8b 2104 unsigned int subspace_index;
252b5132 2105 asection *space_asect;
404ed0cf 2106 bfd_size_type space_size = 0;
252b5132
RH		 2107 char *newname;
2108
7eae7d22 2109 /* Read the space dictionary element. */
252b5132
RH		 2110 if (bfd_seek (abfd,
2111 (current_offset + file_hdr->space_location
e1f000f6 2112 + space_index * sizeof (ext_space)),
dc810e39 2113 SEEK_SET) != 0)
252b5132 2114 goto error_return;
e1f000f6
TG		 2115 amt = sizeof ext_space;
2116 if (bfd_bread (&ext_space, amt, abfd) != amt)
252b5132
RH		 2117 goto error_return;
2118
e1f000f6
TG		 2119 som_swap_space_dictionary_in (&ext_space, &space);
2120
7eae7d22 2121 /* Setup the space name string. */
e1f000f6 2122 space_name = space.name + space_strings;
252b5132 2123
7eae7d22 2124 /* Make a section out of it. */
e1f000f6 2125 amt = strlen (space_name) + 1;
dc810e39 2126 newname = bfd_alloc (abfd, amt);
252b5132
RH		 2127 if (!newname)
2128 goto error_return;
e1f000f6 2129 strcpy (newname, space_name);
6fa957a9 2130
252b5132
RH		 2131 space_asect = bfd_make_section_anyway (abfd, newname);
2132 if (!space_asect)
2133 goto error_return;
2134
7eae7d22 2135 if (space.is_loadable == 0)
252b5132
RH		 2136 space_asect->flags |= SEC_DEBUGGING;
2137
2138 /* Set up all the attributes for the space. */
82e51918
AM		 2139 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
2140 space.is_private, space.sort_key,
2141 space.space_number))
252b5132
RH		 2142 goto error_return;
2143
2144 /* If the space has no subspaces, then we're done. */
2145 if (space.subspace_quantity == 0)
2146 continue;
2147
7eae7d22 2148 /* Now, read in the first subspace for this space. */
252b5132
RH		 2149 if (bfd_seek (abfd,
2150 (current_offset + file_hdr->subspace_location
e1f000f6 2151 + space.subspace_index * sizeof ext_subspace),
dc810e39 2152 SEEK_SET) != 0)
252b5132 2153 goto error_return;
e1f000f6
TG		 2154 amt = sizeof ext_subspace;
2155 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
252b5132 2156 goto error_return;
7eae7d22 2157 /* Seek back to the start of the subspaces for loop below. */
252b5132
RH		 2158 if (bfd_seek (abfd,
2159 (current_offset + file_hdr->subspace_location
e1f000f6 2160 + space.subspace_index * sizeof ext_subspace),
dc810e39 2161 SEEK_SET) != 0)
252b5132
RH		 2162 goto error_return;
2163
e1f000f6
TG		 2164 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2165
7eae7d22 2166 /* Setup the start address and file loc from the first subspace
b34976b6 2167 record. */
252b5132
RH		 2168 space_asect->vma = subspace.subspace_start;
2169 space_asect->filepos = subspace.file_loc_init_value + current_offset;
a99cf92b 2170 space_asect->alignment_power = exact_log2 (subspace.alignment);
dc810e39 2171 if (space_asect->alignment_power == (unsigned) -1)
252b5132
RH		 2172 goto error_return;
2173
2174 /* Initialize save_subspace so we can reliably determine if this
2175 loop placed any useful values into it. */
351e2b5a 2176 memset (&save_subspace, 0, sizeof (save_subspace));
252b5132 2177
7eae7d22 2178 /* Loop over the rest of the subspaces, building up more sections. */
252b5132
RH		 2179 for (subspace_index = 0; subspace_index < space.subspace_quantity;
2180 subspace_index++)
2181 {
2182 asection *subspace_asect;
e1f000f6 2183 char *subspace_name;
252b5132 2184
7eae7d22 2185 /* Read in the next subspace. */
e1f000f6
TG		 2186 amt = sizeof ext_subspace;
2187 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
252b5132
RH		 2188 goto error_return;
2189
e1f000f6
TG		 2190 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2191
7eae7d22 2192 /* Setup the subspace name string. */
e1f000f6 2193 subspace_name = subspace.name + space_strings;
252b5132 2194
e1f000f6 2195 amt = strlen (subspace_name) + 1;
dc810e39 2196 newname = bfd_alloc (abfd, amt);
252b5132
RH		 2197 if (!newname)
2198 goto error_return;
e1f000f6 2199 strcpy (newname, subspace_name);
252b5132 2200
7eae7d22 2201 /* Make a section out of this subspace. */
252b5132
RH		 2202 subspace_asect = bfd_make_section_anyway (abfd, newname);
2203 if (!subspace_asect)
2204 goto error_return;
2205
2206 /* Store private information about the section. */
82e51918
AM		 2207 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
2208 subspace.access_control_bits,
2209 subspace.sort_key,
351e2b5a
DA		 2210 subspace.quadrant,
2211 subspace.is_comdat,
2212 subspace.is_common,
2213 subspace.dup_common))
252b5132
RH		 2214 goto error_return;
2215
6fa957a9 2216 /* Keep an easy mapping between subspaces and sections.
252b5132
RH		 2217 Note we do not necessarily read the subspaces in the
2218 same order in which they appear in the object file.
2219
2220 So to make the target index come out correctly, we
2221 store the location of the subspace header in target
2222 index, then sort using the location of the subspace
2223 header as the key. Then we can assign correct
2224 subspace indices. */
2225 total_subspaces++;
2226 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2227
2228 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2229 by the access_control_bits in the subspace header. */
2230 switch (subspace.access_control_bits >> 4)
2231 {
6fa957a9 2232 /* Readonly data. */
252b5132
RH		 2233 case 0x0:
2234 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2235 break;
2236
6fa957a9 2237 /* Normal data. */
252b5132
RH		 2238 case 0x1:
2239 subspace_asect->flags |= SEC_DATA;
2240 break;
2241
2242 /* Readonly code and the gateways.
2243 Gateways have other attributes which do not map
2244 into anything BFD knows about. */
2245 case 0x2:
2246 case 0x4:
2247 case 0x5:
2248 case 0x6:
2249 case 0x7:
2250 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2251 break;
2252
2253 /* dynamic (writable) code. */
2254 case 0x3:
2255 subspace_asect->flags |= SEC_CODE;
2256 break;
2257 }
6fa957a9 2258
351e2b5a
DA		 2259 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
2260 subspace_asect->flags |= SEC_LINK_ONCE;
2261
2262 if (subspace.subspace_length > 0)
252b5132
RH		 2263 subspace_asect->flags |= SEC_HAS_CONTENTS;
2264
2265 if (subspace.is_loadable)
2266 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2267 else
2268 subspace_asect->flags |= SEC_DEBUGGING;
2269
2270 if (subspace.code_only)
2271 subspace_asect->flags |= SEC_CODE;
2272
2273 /* Both file_loc_init_value and initialization_length will
2274 be zero for a BSS like subspace. */
2275 if (subspace.file_loc_init_value == 0
2276 && subspace.initialization_length == 0)
2277 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2278
2279 /* This subspace has relocations.
2280 The fixup_request_quantity is a byte count for the number of
2281 entries in the relocation stream; it is not the actual number
2282 of relocations in the subspace. */
2283 if (subspace.fixup_request_quantity != 0)
2284 {
2285 subspace_asect->flags |= SEC_RELOC;
2286 subspace_asect->rel_filepos = subspace.fixup_request_index;
2287 som_section_data (subspace_asect)->reloc_size
2288 = subspace.fixup_request_quantity;
6fa957a9 2289 /* We can not determine this yet. When we read in the
252b5132 2290 relocation table the correct value will be filled in. */
dc810e39 2291 subspace_asect->reloc_count = (unsigned) -1;
252b5132
RH		 2292 }
2293
2294 /* Update save_subspace if appropriate. */
2295 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2296 save_subspace = subspace;
2297
2298 subspace_asect->vma = subspace.subspace_start;
eea6121a 2299 subspace_asect->size = subspace.subspace_length;
252b5132
RH		 2300 subspace_asect->filepos = (subspace.file_loc_init_value
2301 + current_offset);
a99cf92b 2302 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
dc810e39 2303 if (subspace_asect->alignment_power == (unsigned) -1)
252b5132 2304 goto error_return;
404ed0cf
DA		 2305
2306 /* Keep track of the accumulated sizes of the sections. */
2307 space_size += subspace.subspace_length;
252b5132
RH		 2308 }
2309
2310 /* This can happen for a .o which defines symbols in otherwise
b34976b6 2311 empty subspaces. */
252b5132 2312 if (!save_subspace.file_loc_init_value)
eea6121a 2313 space_asect->size = 0;
252b5132 2314 else
404ed0cf
DA		 2315 {
2316 if (file_hdr->a_magic != RELOC_MAGIC)
2317 {
2318 /* Setup the size for the space section based upon the info
2319 in the last subspace of the space. */
2320 space_asect->size = (save_subspace.subspace_start
2321 - space_asect->vma
2322 + save_subspace.subspace_length);
2323 }
2324 else
2325 {
2326 /* The subspace_start field is not initialised in relocatable
2327 only objects, so it cannot be used for length calculations.
2328 Instead we use the space_size value which we have been
2329 accumulating. This isn't an accurate estimate since it
2330 ignores alignment and ordering issues. */
2331 space_asect->size = space_size;
2332 }
2333 }
252b5132
RH		 2334 }
2335 /* Now that we've read in all the subspace records, we need to assign
2336 a target index to each subspace. */
dc810e39
AM		 2337 amt = total_subspaces;
2338 amt *= sizeof (asection *);
116c20d2 2339 subspace_sections = bfd_malloc (amt);
252b5132
RH		 2340 if (subspace_sections == NULL)
2341 goto error_return;
2342
2343 for (i = 0, section = abfd->sections; section; section = section->next)
2344 {
2345 if (!som_is_subspace (section))
2346 continue;
2347
2348 subspace_sections[i] = section;
2349 i++;
2350 }
2351 qsort (subspace_sections, total_subspaces,
2352 sizeof (asection *), compare_subspaces);
6fa957a9 2353
252b5132
RH		 2354 /* subspace_sections is now sorted in the order in which the subspaces
2355 appear in the object file. Assign an index to each one now. */
2356 for (i = 0; i < total_subspaces; i++)
2357 subspace_sections[i]->target_index = i;
2358
2359 if (space_strings != NULL)
2360 free (space_strings);
2361
2362 if (subspace_sections != NULL)
2363 free (subspace_sections);
2364
b34976b6 2365 return TRUE;
252b5132
RH		 2366
2367 error_return:
2368 if (space_strings != NULL)
2369 free (space_strings);
2370
2371 if (subspace_sections != NULL)
2372 free (subspace_sections);
b34976b6 2373 return FALSE;
252b5132
RH		 2374}
2375
e1f000f6 2376
252b5132
RH		 2377/* Read in a SOM object and make it into a BFD. */
2378
2379static const bfd_target *
116c20d2 2380som_object_p (bfd *abfd)
252b5132 2381{
e1f000f6
TG		 2382 struct som_external_header ext_file_hdr;
2383 struct som_header file_hdr;
e6dc21b6 2384 struct som_exec_auxhdr *aux_hdr_ptr = NULL;
252b5132 2385 unsigned long current_offset = 0;
e1f000f6
TG		 2386 struct som_external_lst_header ext_lst_header;
2387 struct som_external_som_entry ext_som_entry;
dc810e39 2388 bfd_size_type amt;
e1f000f6
TG		 2389 unsigned int loc;
2390#define ENTRY_SIZE sizeof (struct som_external_som_entry)
252b5132 2391
e1f000f6
TG		 2392 amt = sizeof (struct som_external_header);
2393 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
252b5132
RH		 2394 {
2395 if (bfd_get_error () != bfd_error_system_call)
2396 bfd_set_error (bfd_error_wrong_format);
116c20d2 2397 return NULL;
252b5132
RH		 2398 }
2399
e1f000f6
TG		 2400 som_swap_header_in (&ext_file_hdr, &file_hdr);
2401
252b5132
RH		 2402 if (!_PA_RISC_ID (file_hdr.system_id))
2403 {
2404 bfd_set_error (bfd_error_wrong_format);
116c20d2 2405 return NULL;
252b5132
RH		 2406 }
2407
2408 switch (file_hdr.a_magic)
2409 {
2410 case RELOC_MAGIC:
2411 case EXEC_MAGIC:
2412 case SHARE_MAGIC:
2413 case DEMAND_MAGIC:
252b5132 2414 case DL_MAGIC:
252b5132 2415 case SHL_MAGIC:
252b5132
RH		 2416#ifdef SHARED_MAGIC_CNX
2417 case SHARED_MAGIC_CNX:
2418#endif
2419 break;
2420
252b5132 2421 case EXECLIBMAGIC:
7eae7d22 2422 /* Read the lst header and determine where the SOM directory begins. */
252b5132 2423
dc810e39 2424 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
7eae7d22
KH		 2425 {
2426 if (bfd_get_error () != bfd_error_system_call)
252b5132 2427 bfd_set_error (bfd_error_wrong_format);
116c20d2 2428 return NULL;
7eae7d22 2429 }
252b5132 2430
e1f000f6
TG		 2431 amt = sizeof (struct som_external_lst_header);
2432 if (bfd_bread (&ext_lst_header, amt, abfd) != amt)
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
7eae7d22 2439 /* Position to and read the first directory entry. */
e1f000f6
TG		 2440 loc = bfd_getb32 (ext_lst_header.dir_loc);
2441 if (bfd_seek (abfd, loc, SEEK_SET) != 0)
7eae7d22
KH		 2442 {
2443 if (bfd_get_error () != bfd_error_system_call)
252b5132 2444 bfd_set_error (bfd_error_wrong_format);
116c20d2 2445 return NULL;
7eae7d22 2446 }
252b5132 2447
dc810e39 2448 amt = ENTRY_SIZE;
e1f000f6 2449 if (bfd_bread (&ext_som_entry, amt, abfd) != amt)
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
7eae7d22 2456 /* Now position to the first SOM. */
e1f000f6
TG		 2457 current_offset = bfd_getb32 (ext_som_entry.location);
2458 if (bfd_seek (abfd, current_offset, SEEK_SET) != 0)
7eae7d22
KH		 2459 {
2460 if (bfd_get_error () != bfd_error_system_call)
252b5132 2461 bfd_set_error (bfd_error_wrong_format);
116c20d2 2462 return NULL;
7eae7d22 2463 }
252b5132 2464
7eae7d22 2465 /* And finally, re-read the som header. */
e1f000f6
TG		 2466 amt = sizeof (struct som_external_header);
2467 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
7eae7d22
KH		 2468 {
2469 if (bfd_get_error () != bfd_error_system_call)
252b5132 2470 bfd_set_error (bfd_error_wrong_format);
116c20d2 2471 return NULL;
7eae7d22 2472 }
252b5132 2473
e1f000f6
TG		 2474 som_swap_header_in (&ext_file_hdr, &file_hdr);
2475
252b5132 2476 break;
252b5132
RH		 2477
2478 default:
2479 bfd_set_error (bfd_error_wrong_format);
116c20d2 2480 return NULL;
252b5132
RH		 2481 }
2482
e1f000f6 2483 if (file_hdr.version_id != OLD_VERSION_ID
252b5132
RH		 2484 && file_hdr.version_id != NEW_VERSION_ID)
2485 {
2486 bfd_set_error (bfd_error_wrong_format);
116c20d2 2487 return NULL;
252b5132
RH		 2488 }
2489
2490 /* If the aux_header_size field in the file header is zero, then this
2491 object is an incomplete executable (a .o file). Do not try to read
2492 a non-existant auxiliary header. */
252b5132
RH		 2493 if (file_hdr.aux_header_size != 0)
2494 {
e1f000f6
TG		 2495 struct som_external_exec_auxhdr ext_exec_auxhdr;
2496
68ffbac6 2497 aux_hdr_ptr = bfd_zalloc (abfd,
e6dc21b6
MM		 2498 (bfd_size_type) sizeof (*aux_hdr_ptr));
2499 if (aux_hdr_ptr == NULL)
2500 return NULL;
e1f000f6
TG		 2501 amt = sizeof (struct som_external_exec_auxhdr);
2502 if (bfd_bread (&ext_exec_auxhdr, amt, abfd) != amt)
252b5132
RH		 2503 {
2504 if (bfd_get_error () != bfd_error_system_call)
2505 bfd_set_error (bfd_error_wrong_format);
116c20d2 2506 return NULL;
252b5132 2507 }
e1f000f6 2508 som_swap_exec_auxhdr_in (&ext_exec_auxhdr, aux_hdr_ptr);
252b5132
RH		 2509 }
2510
2511 if (!setup_sections (abfd, &file_hdr, current_offset))
2512 {
2513 /* setup_sections does not bubble up a bfd error code. */
2514 bfd_set_error (bfd_error_bad_value);
116c20d2 2515 return NULL;
252b5132
RH		 2516 }
2517
2518 /* This appears to be a valid SOM object. Do some initialization. */
e6dc21b6 2519 return som_object_setup (abfd, &file_hdr, aux_hdr_ptr, current_offset);
252b5132
RH		 2520}
2521
2522/* Create a SOM object. */
2523
b34976b6 2524static bfd_boolean
116c20d2 2525som_mkobject (bfd *abfd)
252b5132
RH		 2526{
2527 /* Allocate memory to hold backend information. */
116c20d2 2528 abfd->tdata.som_data = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
252b5132 2529 if (abfd->tdata.som_data == NULL)
b34976b6
AM		 2530 return FALSE;
2531 return TRUE;
252b5132
RH		 2532}
2533
2534/* Initialize some information in the file header. This routine makes
2535 not attempt at doing the right thing for a full executable; it
2536 is only meant to handle relocatable objects. */
2537
b34976b6 2538static bfd_boolean
116c20d2 2539som_prep_headers (bfd *abfd)
252b5132 2540{
e1f000f6 2541 struct som_header *file_hdr;
252b5132 2542 asection *section;
e1f000f6 2543 bfd_size_type amt = sizeof (struct som_header);
252b5132
RH		 2544
2545 /* Make and attach a file header to the BFD. */
116c20d2 2546 file_hdr = bfd_zalloc (abfd, amt);
252b5132 2547 if (file_hdr == NULL)
b34976b6 2548 return FALSE;
252b5132
RH		 2549 obj_som_file_hdr (abfd) = file_hdr;
2550
2551 if (abfd->flags & (EXEC_P | DYNAMIC))
2552 {
252b5132 2553 /* Make and attach an exec header to the BFD. */
dc810e39 2554 amt = sizeof (struct som_exec_auxhdr);
116c20d2 2555 obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
252b5132 2556 if (obj_som_exec_hdr (abfd) == NULL)
b34976b6 2557 return FALSE;
252b5132
RH		 2558
2559 if (abfd->flags & D_PAGED)
2560 file_hdr->a_magic = DEMAND_MAGIC;
2561 else if (abfd->flags & WP_TEXT)
2562 file_hdr->a_magic = SHARE_MAGIC;
2563#ifdef SHL_MAGIC
2564 else if (abfd->flags & DYNAMIC)
2565 file_hdr->a_magic = SHL_MAGIC;
2566#endif
2567 else
2568 file_hdr->a_magic = EXEC_MAGIC;
2569 }
2570 else
2571 file_hdr->a_magic = RELOC_MAGIC;
2572
252b5132
RH		 2573 /* These fields are optional, and embedding timestamps is not always
2574 a wise thing to do, it makes comparing objects during a multi-stage
2575 bootstrap difficult. */
2576 file_hdr->file_time.secs = 0;
6fa957a9 2577 file_hdr->file_time.nanosecs = 0;
252b5132
RH		 2578
2579 file_hdr->entry_space = 0;
2580 file_hdr->entry_subspace = 0;
2581 file_hdr->entry_offset = 0;
2582 file_hdr->presumed_dp = 0;
2583
2584 /* Now iterate over the sections translating information from
2585 BFD sections to SOM spaces/subspaces. */
252b5132
RH		 2586 for (section = abfd->sections; section != NULL; section = section->next)
2587 {
2588 /* Ignore anything which has not been marked as a space or
2589 subspace. */
2590 if (!som_is_space (section) && !som_is_subspace (section))
2591 continue;
6fa957a9 2592
252b5132
RH		 2593 if (som_is_space (section))
2594 {
2595 /* Allocate space for the space dictionary. */
e1f000f6 2596 amt = sizeof (struct som_space_dictionary_record);
116c20d2 2597 som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
252b5132 2598 if (som_section_data (section)->space_dict == NULL)
b34976b6 2599 return FALSE;
252b5132
RH		 2600 /* Set space attributes. Note most attributes of SOM spaces
2601 are set based on the subspaces it contains. */
2602 som_section_data (section)->space_dict->loader_fix_index = -1;
2603 som_section_data (section)->space_dict->init_pointer_index = -1;
2604
2605 /* Set more attributes that were stuffed away in private data. */
6fa957a9 2606 som_section_data (section)->space_dict->sort_key =
252b5132 2607 som_section_data (section)->copy_data->sort_key;
6fa957a9 2608 som_section_data (section)->space_dict->is_defined =
252b5132 2609 som_section_data (section)->copy_data->is_defined;
6fa957a9 2610 som_section_data (section)->space_dict->is_private =
252b5132
RH		 2611 som_section_data (section)->copy_data->is_private;
2612 som_section_data (section)->space_dict->space_number =
2613 som_section_data (section)->copy_data->space_number;
2614 }
2615 else
2616 {
2617 /* Allocate space for the subspace dictionary. */
351e2b5a 2618 amt = sizeof (struct som_subspace_dictionary_record);
116c20d2 2619 som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
252b5132 2620 if (som_section_data (section)->subspace_dict == NULL)
b34976b6 2621 return FALSE;
252b5132
RH		 2622
2623 /* Set subspace attributes. Basic stuff is done here, additional
2624 attributes are filled in later as more information becomes
2625 available. */
252b5132
RH		 2626 if (section->flags & SEC_ALLOC)
2627 som_section_data (section)->subspace_dict->is_loadable = 1;
2628
2629 if (section->flags & SEC_CODE)
2630 som_section_data (section)->subspace_dict->code_only = 1;
2631
6fa957a9 2632 som_section_data (section)->subspace_dict->subspace_start =
252b5132
RH		 2633 section->vma;
2634 som_section_data (section)->subspace_dict->subspace_length =
eea6121a 2635 section->size;
252b5132 2636 som_section_data (section)->subspace_dict->initialization_length =
eea6121a 2637 section->size;
6fa957a9 2638 som_section_data (section)->subspace_dict->alignment =
252b5132
RH		 2639 1 << section->alignment_power;
2640
2641 /* Set more attributes that were stuffed away in private data. */
2642 som_section_data (section)->subspace_dict->sort_key =
2643 som_section_data (section)->copy_data->sort_key;
2644 som_section_data (section)->subspace_dict->access_control_bits =
2645 som_section_data (section)->copy_data->access_control_bits;
2646 som_section_data (section)->subspace_dict->quadrant =
2647 som_section_data (section)->copy_data->quadrant;
351e2b5a
DA		 2648 som_section_data (section)->subspace_dict->is_comdat =
2649 som_section_data (section)->copy_data->is_comdat;
2650 som_section_data (section)->subspace_dict->is_common =
2651 som_section_data (section)->copy_data->is_common;
2652 som_section_data (section)->subspace_dict->dup_common =
2653 som_section_data (section)->copy_data->dup_common;
252b5132
RH		 2654 }
2655 }
b34976b6 2656 return TRUE;
252b5132
RH		 2657}
2658
b34976b6 2659/* Return TRUE if the given section is a SOM space, FALSE otherwise. */
252b5132 2660
b34976b6 2661static bfd_boolean
116c20d2 2662som_is_space (asection *section)
252b5132
RH		 2663{
2664 /* If no copy data is available, then it's neither a space nor a
2665 subspace. */
2666 if (som_section_data (section)->copy_data == NULL)
b34976b6 2667 return FALSE;
252b5132
RH		 2668
2669 /* If the containing space isn't the same as the given section,
2670 then this isn't a space. */
2671 if (som_section_data (section)->copy_data->container != section
2672 && (som_section_data (section)->copy_data->container->output_section
2673 != section))
b34976b6 2674 return FALSE;
252b5132
RH		 2675
2676 /* OK. Must be a space. */
b34976b6 2677 return TRUE;
252b5132
RH		 2678}
2679
b34976b6 2680/* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
252b5132 2681
b34976b6 2682static bfd_boolean
116c20d2 2683som_is_subspace (asection *section)
252b5132
RH		 2684{
2685 /* If no copy data is available, then it's neither a space nor a
2686 subspace. */
2687 if (som_section_data (section)->copy_data == NULL)
b34976b6 2688 return FALSE;
252b5132
RH		 2689
2690 /* If the containing space is the same as the given section,
2691 then this isn't a subspace. */
2692 if (som_section_data (section)->copy_data->container == section
2693 || (som_section_data (section)->copy_data->container->output_section
2694 == section))
b34976b6 2695 return FALSE;
252b5132
RH		 2696
2697 /* OK. Must be a subspace. */
b34976b6 2698 return TRUE;
252b5132
RH		 2699}
2700
7dee875e 2701/* Return TRUE if the given space contains the given subspace. It
252b5132
RH		 2702 is safe to assume space really is a space, and subspace really
2703 is a subspace. */
2704
b34976b6 2705static bfd_boolean
116c20d2 2706som_is_container (asection *space, asection *subspace)
252b5132 2707{
116c20d2
NC		 2708 return (som_section_data (subspace)->copy_data->container == space)
2709 || (som_section_data (subspace)->copy_data->container->output_section
2710 == space);
252b5132
RH		 2711}
2712
2713/* Count and return the number of spaces attached to the given BFD. */
2714
2715static unsigned long
116c20d2 2716som_count_spaces (bfd *abfd)
252b5132
RH		 2717{
2718 int count = 0;
2719 asection *section;
2720
2721 for (section = abfd->sections; section != NULL; section = section->next)
7eae7d22 2722 count += som_is_space (section);
252b5132
RH		 2723
2724 return count;
2725}
2726
2727/* Count the number of subspaces attached to the given BFD. */
2728
2729static unsigned long
116c20d2 2730som_count_subspaces (bfd *abfd)
252b5132
RH		 2731{
2732 int count = 0;
2733 asection *section;
2734
2735 for (section = abfd->sections; section != NULL; section = section->next)
2736 count += som_is_subspace (section);
2737
2738 return count;
2739}
2740
2741/* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2742
2743 We desire symbols to be ordered starting with the symbol with the
2744 highest relocation count down to the symbol with the lowest relocation
2745 count. Doing so compacts the relocation stream. */
2746
2747static int
6a808a40 2748compare_syms (const void *arg1, const void *arg2)
252b5132
RH		 2749{
2750 asymbol **sym1 = (asymbol **) arg1;
2751 asymbol **sym2 = (asymbol **) arg2;
2752 unsigned int count1, count2;
6fa957a9 2753
252b5132
RH		 2754 /* Get relocation count for each symbol. Note that the count
2755 is stored in the udata pointer for section symbols! */
2756 if ((*sym1)->flags & BSF_SECTION_SYM)
2757 count1 = (*sym1)->udata.i;
2758 else
2759 count1 = som_symbol_data (*sym1)->reloc_count;
2760
2761 if ((*sym2)->flags & BSF_SECTION_SYM)
2762 count2 = (*sym2)->udata.i;
2763 else
2764 count2 = som_symbol_data (*sym2)->reloc_count;
2765
2766 /* Return the appropriate value. */
2767 if (count1 < count2)
2768 return 1;
2769 else if (count1 > count2)
2770 return -1;
2771 return 0;
2772}
2773
2774/* Return -1, 0, 1 indicating the relative ordering of subspace1
2775 and subspace. */
2776
2777static int
6a808a40 2778compare_subspaces (const void *arg1, const void *arg2)
252b5132
RH		 2779{
2780 asection **subspace1 = (asection **) arg1;
2781 asection **subspace2 = (asection **) arg2;
6fa957a9 2782
252b5132
RH		 2783 if ((*subspace1)->target_index < (*subspace2)->target_index)
2784 return -1;
2785 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2786 return 1;
2787 else
2788 return 0;
2789}
2790
2791/* Perform various work in preparation for emitting the fixup stream. */
2792
2793static void
116c20d2 2794som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
252b5132 2795{
dc810e39 2796 unsigned long i;
252b5132
RH		 2797 asection *section;
2798 asymbol **sorted_syms;
dc810e39 2799 bfd_size_type amt;
252b5132
RH		 2800
2801 /* Most SOM relocations involving a symbol have a length which is
2802 dependent on the index of the symbol. So symbols which are
2803 used often in relocations should have a small index. */
2804
2805 /* First initialize the counters for each symbol. */
2806 for (i = 0; i < num_syms; i++)
2807 {
2808 /* Handle a section symbol; these have no pointers back to the
2809 SOM symbol info. So we just use the udata field to hold the
2810 relocation count. */
2811 if (som_symbol_data (syms[i]) == NULL
2812 || syms[i]->flags & BSF_SECTION_SYM)
2813 {
2814 syms[i]->flags |= BSF_SECTION_SYM;
2815 syms[i]->udata.i = 0;
2816 }
2817 else
2818 som_symbol_data (syms[i])->reloc_count = 0;
2819 }
2820
2821 /* Now that the counters are initialized, make a weighted count
2822 of how often a given symbol is used in a relocation. */
2823 for (section = abfd->sections; section != NULL; section = section->next)
2824 {
dc810e39 2825 int j;
252b5132
RH		 2826
2827 /* Does this section have any relocations? */
dc810e39 2828 if ((int) section->reloc_count <= 0)
252b5132
RH		 2829 continue;
2830
2831 /* Walk through each relocation for this section. */
dc810e39 2832 for (j = 1; j < (int) section->reloc_count; j++)
252b5132 2833 {
dc810e39 2834 arelent *reloc = section->orelocation[j];
252b5132
RH		 2835 int scale;
2836
2837 /* A relocation against a symbol in the *ABS* section really
2838 does not have a symbol. Likewise if the symbol isn't associated
2839 with any section. */
2840 if (reloc->sym_ptr_ptr == NULL
2841 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2842 continue;
2843
6fa957a9 2844 /* Scaling to encourage symbols involved in R_DP_RELATIVE
252b5132
RH		 2845 and R_CODE_ONE_SYMBOL relocations to come first. These
2846 two relocations have single byte versions if the symbol
2847 index is very small. */
2848 if (reloc->howto->type == R_DP_RELATIVE
2849 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2850 scale = 2;
2851 else
2852 scale = 1;
2853
2854 /* Handle section symbols by storing the count in the udata
2855 field. It will not be used and the count is very important
2856 for these symbols. */
2857 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2858 {
2859 (*reloc->sym_ptr_ptr)->udata.i =
2860 (*reloc->sym_ptr_ptr)->udata.i + scale;
2861 continue;
2862 }
2863
2864 /* A normal symbol. Increment the count. */
2865 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2866 }
2867 }
2868
2869 /* Sort a copy of the symbol table, rather than the canonical
2870 output symbol table. */
dc810e39
AM		 2871 amt = num_syms;
2872 amt *= sizeof (asymbol *);
116c20d2 2873 sorted_syms = bfd_zalloc (abfd, amt);
252b5132
RH		 2874 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2875 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2876 obj_som_sorted_syms (abfd) = sorted_syms;
2877
2878 /* Compute the symbol indexes, they will be needed by the relocation
2879 code. */
2880 for (i = 0; i < num_syms; i++)
2881 {
2882 /* A section symbol. Again, there is no pointer to backend symbol
2883 information, so we reuse the udata field again. */
2884 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2885 sorted_syms[i]->udata.i = i;
2886 else
7eae7d22 2887 som_symbol_data (sorted_syms[i])->index = i;
252b5132
RH		 2888 }
2889}
2890
b34976b6 2891static bfd_boolean
116c20d2
NC		 2892som_write_fixups (bfd *abfd,
2893 unsigned long current_offset,
2894 unsigned int *total_reloc_sizep)
252b5132
RH		 2895{
2896 unsigned int i, j;
2897 /* Chunk of memory that we can use as buffer space, then throw
2898 away. */
2899 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2900 unsigned char *p;
2901 unsigned int total_reloc_size = 0;
2902 unsigned int subspace_reloc_size = 0;
2903 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2904 asection *section = abfd->sections;
dc810e39 2905 bfd_size_type amt;
252b5132
RH		 2906
2907 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2908 p = tmp_space;
2909
2910 /* All the fixups for a particular subspace are emitted in a single
2911 stream. All the subspaces for a particular space are emitted
2912 as a single stream.
2913
2914 So, to get all the locations correct one must iterate through all the
2915 spaces, for each space iterate through its subspaces and output a
2916 fixups stream. */
2917 for (i = 0; i < num_spaces; i++)
2918 {
2919 asection *subsection;
2920
2921 /* Find a space. */
2922 while (!som_is_space (section))
2923 section = section->next;
2924
2925 /* Now iterate through each of its subspaces. */
2926 for (subsection = abfd->sections;
2927 subsection != NULL;
2928 subsection = subsection->next)
2929 {
dc810e39
AM		 2930 int reloc_offset;
2931 unsigned int current_rounding_mode;
2667095f 2932#ifndef NO_PCREL_MODES
5198ba8b 2933 unsigned int current_call_mode;
2667095f 2934#endif
252b5132
RH		 2935
2936 /* Find a subspace of this space. */
2937 if (!som_is_subspace (subsection)
2938 || !som_is_container (section, subsection))
2939 continue;
2940
2941 /* If this subspace does not have real data, then we are
7dee875e 2942 finished with it. */
252b5132
RH		 2943 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2944 {
2945 som_section_data (subsection)->subspace_dict->fixup_request_index
2946 = -1;
2947 continue;
2948 }
2949
2950 /* This subspace has some relocations. Put the relocation stream
2951 index into the subspace record. */
2952 som_section_data (subsection)->subspace_dict->fixup_request_index
2953 = total_reloc_size;
2954
6fa957a9 2955 /* To make life easier start over with a clean slate for
252b5132
RH		 2956 each subspace. Seek to the start of the relocation stream
2957 for this subspace in preparation for writing out its fixup
2958 stream. */
dc810e39 2959 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
b34976b6 2960 return FALSE;
252b5132
RH		 2961
2962 /* Buffer space has already been allocated. Just perform some
2963 initialization here. */
2964 p = tmp_space;
2965 subspace_reloc_size = 0;
2966 reloc_offset = 0;
2967 som_initialize_reloc_queue (reloc_queue);
2968 current_rounding_mode = R_N_MODE;
2667095f
JL		 2969#ifndef NO_PCREL_MODES
2970 current_call_mode = R_SHORT_PCREL_MODE;
2971#endif
252b5132 2972
6fa957a9 2973 /* Translate each BFD relocation into one or more SOM
252b5132
RH		 2974 relocations. */
2975 for (j = 0; j < subsection->reloc_count; j++)
2976 {
2977 arelent *bfd_reloc = subsection->orelocation[j];
2978 unsigned int skip;
2979 int sym_num;
2980
6fa957a9 2981 /* Get the symbol number. Remember it's stored in a
252b5132
RH		 2982 special place for section symbols. */
2983 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2984 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2985 else
2986 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
6fa957a9 2987
252b5132
RH		 2988 /* If there is not enough room for the next couple relocations,
2989 then dump the current buffer contents now. Also reinitialize
6fa957a9 2990 the relocation queue.
252b5132
RH		 2991
2992 No single BFD relocation could ever translate into more
2993 than 100 bytes of SOM relocations (20bytes is probably the
2994 upper limit, but leave lots of space for growth). */
2995 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2996 {
dc810e39 2997 amt = p - tmp_space;
116c20d2 2998 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
b34976b6 2999 return FALSE;
252b5132
RH		 3000
3001 p = tmp_space;
3002 som_initialize_reloc_queue (reloc_queue);
3003 }
3004
3005 /* Emit R_NO_RELOCATION fixups to map any bytes which were
3006 skipped. */
3007 skip = bfd_reloc->address - reloc_offset;
3008 p = som_reloc_skip (abfd, skip, p,
3009 &subspace_reloc_size, reloc_queue);
3010
3011 /* Update reloc_offset for the next iteration.
3012
3013 Many relocations do not consume input bytes. They
3014 are markers, or set state necessary to perform some
3015 later relocation. */
3016 switch (bfd_reloc->howto->type)
3017 {
3018 case R_ENTRY:
3019 case R_ALT_ENTRY:
3020 case R_EXIT:
3021 case R_N_MODE:
3022 case R_S_MODE:
3023 case R_D_MODE:
3024 case R_R_MODE:
3025 case R_FSEL:
3026 case R_LSEL:
3027 case R_RSEL:
3028 case R_COMP1:
3029 case R_COMP2:
3030 case R_BEGIN_BRTAB:
3031 case R_END_BRTAB:
3032 case R_BEGIN_TRY:
3033 case R_END_TRY:
3034 case R_N0SEL:
3035 case R_N1SEL:
2667095f
JL		 3036#ifndef NO_PCREL_MODES
3037 case R_SHORT_PCREL_MODE:
3038 case R_LONG_PCREL_MODE:
3039#endif
252b5132
RH		 3040 reloc_offset = bfd_reloc->address;
3041 break;
3042
3043 default:
3044 reloc_offset = bfd_reloc->address + 4;
3045 break;
3046 }
3047
3048 /* Now the actual relocation we care about. */
3049 switch (bfd_reloc->howto->type)
3050 {
3051 case R_PCREL_CALL:
3052 case R_ABS_CALL:
3053 p = som_reloc_call (abfd, p, &subspace_reloc_size,
3054 bfd_reloc, sym_num, reloc_queue);
3055 break;
3056
3057 case R_CODE_ONE_SYMBOL:
3058 case R_DP_RELATIVE:
3059 /* Account for any addend. */
3060 if (bfd_reloc->addend)
6fa957a9 3061 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
252b5132
RH		 3062 &subspace_reloc_size, reloc_queue);
3063
3064 if (sym_num < 0x20)
3065 {
3066 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
3067 subspace_reloc_size += 1;
3068 p += 1;
3069 }
3070 else if (sym_num < 0x100)
3071 {
3072 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
3073 bfd_put_8 (abfd, sym_num, p + 1);
3074 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3075 2, reloc_queue);
3076 }
3077 else if (sym_num < 0x10000000)
3078 {
3079 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
3080 bfd_put_8 (abfd, sym_num >> 16, p + 1);
dc810e39 3081 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
252b5132
RH		 3082 p = try_prev_fixup (abfd, &subspace_reloc_size,
3083 p, 4, reloc_queue);
3084 }
3085 else
3086 abort ();
3087 break;
3088
6bba1048
DA		 3089 case R_DATA_GPREL:
3090 /* Account for any addend. */
3091 if (bfd_reloc->addend)
3092 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3093 &subspace_reloc_size, reloc_queue);
3094
3095 if (sym_num < 0x10000000)
3096 {
3097 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3098 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3099 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3100 p = try_prev_fixup (abfd, &subspace_reloc_size,
3101 p, 4, reloc_queue);
3102 }
3103 else
3104 abort ();
3105 break;
3106
252b5132
RH		 3107 case R_DATA_ONE_SYMBOL:
3108 case R_DATA_PLABEL:
3109 case R_CODE_PLABEL:
3110 case R_DLT_REL:
3111 /* Account for any addend using R_DATA_OVERRIDE. */
3112 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
3113 && bfd_reloc->addend)
6fa957a9 3114 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
252b5132
RH		 3115 &subspace_reloc_size, reloc_queue);
3116
3117 if (sym_num < 0x100)
3118 {
3119 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3120 bfd_put_8 (abfd, sym_num, p + 1);
3121 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3122 2, reloc_queue);
3123 }
3124 else if (sym_num < 0x10000000)
3125 {
3126 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3127 bfd_put_8 (abfd, sym_num >> 16, p + 1);
dc810e39 3128 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
252b5132
RH		 3129 p = try_prev_fixup (abfd, &subspace_reloc_size,
3130 p, 4, reloc_queue);
3131 }
3132 else
3133 abort ();
3134 break;
3135
3136 case R_ENTRY:
3137 {
dc810e39 3138 unsigned int tmp;
252b5132
RH		 3139 arelent *tmp_reloc = NULL;
3140 bfd_put_8 (abfd, R_ENTRY, p);
3141
3142 /* R_ENTRY relocations have 64 bits of associated
3143 data. Unfortunately the addend field of a bfd
3144 relocation is only 32 bits. So, we split up
3145 the 64bit unwind information and store part in
3146 the R_ENTRY relocation, and the rest in the R_EXIT
3147 relocation. */
3148 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
6fa957a9 3149
252b5132
RH		 3150 /* Find the next R_EXIT relocation. */
3151 for (tmp = j; tmp < subsection->reloc_count; tmp++)
3152 {
7eae7d22 3153 tmp_reloc = subsection->orelocation[tmp];
252b5132
RH		 3154 if (tmp_reloc->howto->type == R_EXIT)
3155 break;
3156 }
3157
3158 if (tmp == subsection->reloc_count)
3159 abort ();
3160
3161 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
3162 p = try_prev_fixup (abfd, &subspace_reloc_size,
3163 p, 9, reloc_queue);
3164 break;
3165 }
6fa957a9 3166
252b5132
RH		 3167 case R_N_MODE:
3168 case R_S_MODE:
3169 case R_D_MODE:
3170 case R_R_MODE:
3171 /* If this relocation requests the current rounding
3172 mode, then it is redundant. */
3173 if (bfd_reloc->howto->type != current_rounding_mode)
3174 {
3175 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3176 subspace_reloc_size += 1;
3177 p += 1;
3178 current_rounding_mode = bfd_reloc->howto->type;
3179 }
3180 break;
3181
2667095f
JL		 3182#ifndef NO_PCREL_MODES
3183 case R_LONG_PCREL_MODE:
3184 case R_SHORT_PCREL_MODE:
3185 if (bfd_reloc->howto->type != current_call_mode)
3186 {
3187 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3188 subspace_reloc_size += 1;
3189 p += 1;
3190 current_call_mode = bfd_reloc->howto->type;
3191 }
3192 break;
3193#endif
3194
252b5132
RH		 3195 case R_EXIT:
3196 case R_ALT_ENTRY:
3197 case R_FSEL:
3198 case R_LSEL:
3199 case R_RSEL:
3200 case R_BEGIN_BRTAB:
3201 case R_END_BRTAB:
3202 case R_BEGIN_TRY:
3203 case R_N0SEL:
3204 case R_N1SEL:
3205 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3206 subspace_reloc_size += 1;
3207 p += 1;
3208 break;
3209
3210 case R_END_TRY:
08da05b0 3211 /* The end of an exception handling region. The reloc's
252b5132
RH		 3212 addend contains the offset of the exception handling
3213 code. */
3214 if (bfd_reloc->addend == 0)
3215 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3216 else if (bfd_reloc->addend < 1024)
3217 {
3218 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3219 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3220 p = try_prev_fixup (abfd, &subspace_reloc_size,
3221 p, 2, reloc_queue);
3222 }
3223 else
3224 {
3225 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3226 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3227 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3228 p = try_prev_fixup (abfd, &subspace_reloc_size,
3229 p, 4, reloc_queue);
3230 }
3231 break;
6fa957a9 3232
252b5132 3233 case R_COMP1:
6fa957a9 3234 /* The only time we generate R_COMP1, R_COMP2 and
252b5132
RH		 3235 R_CODE_EXPR relocs is for the difference of two
3236 symbols. Hence we can cheat here. */
3237 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3238 bfd_put_8 (abfd, 0x44, p + 1);
3239 p = try_prev_fixup (abfd, &subspace_reloc_size,
3240 p, 2, reloc_queue);
3241 break;
3242
3243 case R_COMP2:
6fa957a9 3244 /* The only time we generate R_COMP1, R_COMP2 and
252b5132
RH		 3245 R_CODE_EXPR relocs is for the difference of two
3246 symbols. Hence we can cheat here. */
3247 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3248 bfd_put_8 (abfd, 0x80, p + 1);
3249 bfd_put_8 (abfd, sym_num >> 16, p + 2);
dc810e39 3250 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
252b5132
RH		 3251 p = try_prev_fixup (abfd, &subspace_reloc_size,
3252 p, 5, reloc_queue);
3253 break;
3254
3255 case R_CODE_EXPR:
3256 case R_DATA_EXPR:
6fa957a9 3257 /* The only time we generate R_COMP1, R_COMP2 and
252b5132
RH		 3258 R_CODE_EXPR relocs is for the difference of two
3259 symbols. Hence we can cheat here. */
3260 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3261 subspace_reloc_size += 1;
3262 p += 1;
3263 break;
3264
3265 /* Put a "R_RESERVED" relocation in the stream if
3266 we hit something we do not understand. The linker
3267 will complain loudly if this ever happens. */
3268 default:
3269 bfd_put_8 (abfd, 0xff, p);
3270 subspace_reloc_size += 1;
3271 p += 1;
3272 break;
3273 }
3274 }
3275
3276 /* Last BFD relocation for a subspace has been processed.
3277 Map the rest of the subspace with R_NO_RELOCATION fixups. */
eea6121a 3278 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
252b5132
RH		 3279 p, &subspace_reloc_size, reloc_queue);
3280
3281 /* Scribble out the relocations. */
dc810e39 3282 amt = p - tmp_space;
116c20d2 3283 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
b34976b6 3284 return FALSE;
252b5132
RH		 3285 p = tmp_space;
3286
3287 total_reloc_size += subspace_reloc_size;
3288 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3289 = subspace_reloc_size;
3290 }
3291 section = section->next;
3292 }
3293 *total_reloc_sizep = total_reloc_size;
b34976b6 3294 return TRUE;
252b5132
RH		 3295}
3296
3297/* Write out the space/subspace string table. */
3298
b34976b6 3299static bfd_boolean
116c20d2
NC		 3300som_write_space_strings (bfd *abfd,
3301 unsigned long current_offset,
3302 unsigned int *string_sizep)
252b5132
RH		 3303{
3304 /* Chunk of memory that we can use as buffer space, then throw
3305 away. */
8681fbcd 3306 size_t tmp_space_size = SOM_TMP_BUFSIZE;
a96afa0f
DA		 3307 char *tmp_space = alloca (tmp_space_size);
3308 char *p = tmp_space;
252b5132
RH		 3309 unsigned int strings_size = 0;
3310 asection *section;
dc810e39 3311 bfd_size_type amt;
252b5132 3312
252b5132
RH		 3313 /* Seek to the start of the space strings in preparation for writing
3314 them out. */
dc810e39 3315 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3316 return FALSE;
252b5132
RH		 3317
3318 /* Walk through all the spaces and subspaces (order is not important)
3319 building up and writing string table entries for their names. */
3320 for (section = abfd->sections; section != NULL; section = section->next)
3321 {
8681fbcd 3322 size_t length;
252b5132
RH		 3323
3324 /* Only work with space/subspaces; avoid any other sections
3325 which might have been made (.text for example). */
3326 if (!som_is_space (section) && !som_is_subspace (section))
3327 continue;
3328
3329 /* Get the length of the space/subspace name. */
3330 length = strlen (section->name);
3331
3332 /* If there is not enough room for the next entry, then dump the
b34976b6
AM		 3333 current buffer contents now and maybe allocate a larger
3334 buffer. Each entry will take 4 bytes to hold the string
3335 length + the string itself + null terminator. */
8681fbcd 3336 if (p - tmp_space + 5 + length > tmp_space_size)
252b5132 3337 {
8681fbcd 3338 /* Flush buffer before refilling or reallocating. */
dc810e39 3339 amt = p - tmp_space;
116c20d2 3340 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3341 return FALSE;
8681fbcd
JL		 3342
3343 /* Reallocate if now empty buffer still too small. */
3344 if (5 + length > tmp_space_size)
3345 {
3346 /* Ensure a minimum growth factor to avoid O(n**2) space
b34976b6
AM		 3347 consumption for n strings. The optimal minimum
3348 factor seems to be 2, as no other value can guarantee
3349 wasting less than 50% space. (Note that we cannot
3350 deallocate space allocated by `alloca' without
3351 returning from this function.) The same technique is
3352 used a few more times below when a buffer is
3353 reallocated. */
e1f000f6
TG		 3354 if (2 * tmp_space_size < length + 5)
3355 tmp_space_size = length + 5;
3356 else
3357 tmp_space_size = 2 * tmp_space_size;
8681fbcd
JL		 3358 tmp_space = alloca (tmp_space_size);
3359 }
3360
3361 /* Reset to beginning of the (possibly new) buffer space. */
252b5132
RH		 3362 p = tmp_space;
3363 }
3364
3365 /* First element in a string table entry is the length of the
3366 string. Alignment issues are already handled. */
dc810e39 3367 bfd_put_32 (abfd, (bfd_vma) length, p);
252b5132
RH		 3368 p += 4;
3369 strings_size += 4;
3370
3371 /* Record the index in the space/subspace records. */
3372 if (som_is_space (section))
e1f000f6 3373 som_section_data (section)->space_dict->name = strings_size;
252b5132 3374 else
e1f000f6 3375 som_section_data (section)->subspace_dict->name = strings_size;
252b5132
RH		 3376
3377 /* Next comes the string itself + a null terminator. */
3378 strcpy (p, section->name);
3379 p += length + 1;
3380 strings_size += length + 1;
3381
3382 /* Always align up to the next word boundary. */
3383 while (strings_size % 4)
3384 {
3385 bfd_put_8 (abfd, 0, p);
3386 p++;
3387 strings_size++;
3388 }
3389 }
3390
3391 /* Done with the space/subspace strings. Write out any information
3392 contained in a partial block. */
dc810e39 3393 amt = p - tmp_space;
116c20d2 3394 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3395 return FALSE;
252b5132 3396 *string_sizep = strings_size;
b34976b6 3397 return TRUE;
252b5132
RH		 3398}
3399
3400/* Write out the symbol string table. */
3401
b34976b6 3402static bfd_boolean
116c20d2
NC		 3403som_write_symbol_strings (bfd *abfd,
3404 unsigned long current_offset,
3405 asymbol **syms,
3406 unsigned int num_syms,
3407 unsigned int *string_sizep,
e1f000f6 3408 struct som_compilation_unit *compilation_unit)
252b5132
RH		 3409{
3410 unsigned int i;
6fa957a9 3411
252b5132
RH		 3412 /* Chunk of memory that we can use as buffer space, then throw
3413 away. */
8681fbcd 3414 size_t tmp_space_size = SOM_TMP_BUFSIZE;
a96afa0f
DA		 3415 char *tmp_space = alloca (tmp_space_size);
3416 char *p = tmp_space;
8681fbcd 3417
252b5132 3418 unsigned int strings_size = 0;
dc810e39 3419 bfd_size_type amt;
252b5132
RH		 3420
3421 /* This gets a bit gruesome because of the compilation unit. The
3422 strings within the compilation unit are part of the symbol
3423 strings, but don't have symbol_dictionary entries. So, manually
7dee875e 3424 write them and update the compilation unit header. On input, the
252b5132
RH		 3425 compilation unit header contains local copies of the strings.
3426 Move them aside. */
252b5132 3427
252b5132
RH		 3428 /* Seek to the start of the space strings in preparation for writing
3429 them out. */
21d17a58 3430 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3431 return FALSE;
252b5132
RH		 3432
3433 if (compilation_unit)
3434 {
3435 for (i = 0; i < 4; i++)
3436 {
e1f000f6
TG		 3437 struct som_name_pt *name;
3438 size_t length;
3439
3440 switch (i)
3441 {
3442 case 0:
3443 name = &compilation_unit->name;
3444 break;
3445 case 1:
3446 name = &compilation_unit->language_name;
3447 break;
3448 case 2:
3449 name = &compilation_unit->product_id;
3450 break;
3451 case 3:
3452 name = &compilation_unit->version_id;
3453 break;
3454 default:
3455 abort ();
3456 }
3457
3458 length = strlen (name->name);
252b5132
RH		 3459
3460 /* If there is not enough room for the next entry, then dump
8681fbcd
JL		 3461 the current buffer contents now and maybe allocate a
3462 larger buffer. */
3463 if (p - tmp_space + 5 + length > tmp_space_size)
252b5132 3464 {
6fa957a9 3465 /* Flush buffer before refilling or reallocating. */
dc810e39 3466 amt = p - tmp_space;
116c20d2 3467 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3468 return FALSE;
8681fbcd
JL		 3469
3470 /* Reallocate if now empty buffer still too small. */
3471 if (5 + length > tmp_space_size)
3472 {
3473 /* See alloca above for discussion of new size. */
e1f000f6
TG		 3474 if (2 * tmp_space_size < 5 + length)
3475 tmp_space_size = 5 + length;
3476 else
3477 tmp_space_size = 2 * tmp_space_size;
8681fbcd
JL		 3478 tmp_space = alloca (tmp_space_size);
3479 }
3480
3481 /* Reset to beginning of the (possibly new) buffer
b34976b6 3482 space. */
252b5132
RH		 3483 p = tmp_space;
3484 }
3485
3486 /* First element in a string table entry is the length of
3487 the string. This must always be 4 byte aligned. This is
3488 also an appropriate time to fill in the string index
3489 field in the symbol table entry. */
dc810e39 3490 bfd_put_32 (abfd, (bfd_vma) length, p);
252b5132
RH		 3491 strings_size += 4;
3492 p += 4;
3493
3494 /* Next comes the string itself + a null terminator. */
e1f000f6 3495 strcpy (p, name->name);
252b5132 3496
e1f000f6 3497 name->strx = strings_size;
252b5132
RH		 3498
3499 p += length + 1;
3500 strings_size += length + 1;
3501
3502 /* Always align up to the next word boundary. */
3503 while (strings_size % 4)
3504 {
3505 bfd_put_8 (abfd, 0, p);
3506 strings_size++;
3507 p++;
3508 }
3509 }
3510 }
3511
3512 for (i = 0; i < num_syms; i++)
3513 {
8681fbcd 3514 size_t length = strlen (syms[i]->name);
252b5132
RH		 3515
3516 /* If there is not enough room for the next entry, then dump the
8681fbcd
JL		 3517 current buffer contents now and maybe allocate a larger buffer. */
3518 if (p - tmp_space + 5 + length > tmp_space_size)
252b5132 3519 {
6fa957a9 3520 /* Flush buffer before refilling or reallocating. */
dc810e39 3521 amt = p - tmp_space;
116c20d2 3522 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3523 return FALSE;
8681fbcd
JL		 3524
3525 /* Reallocate if now empty buffer still too small. */
3526 if (5 + length > tmp_space_size)
3527 {
3528 /* See alloca above for discussion of new size. */
e1f000f6
TG		 3529 if (2 * tmp_space_size < 5 + length)
3530 tmp_space_size = 5 + length;
3531 else
3532 tmp_space_size = 2 * tmp_space_size;
8681fbcd
JL		 3533 tmp_space = alloca (tmp_space_size);
3534 }
3535
3536 /* Reset to beginning of the (possibly new) buffer space. */
252b5132
RH		 3537 p = tmp_space;
3538 }
3539
3540 /* First element in a string table entry is the length of the
3541 string. This must always be 4 byte aligned. This is also
3542 an appropriate time to fill in the string index field in the
3543 symbol table entry. */
dc810e39 3544 bfd_put_32 (abfd, (bfd_vma) length, p);
252b5132
RH		 3545 strings_size += 4;
3546 p += 4;
3547
3548 /* Next comes the string itself + a null terminator. */
3549 strcpy (p, syms[i]->name);
3550
7eae7d22 3551 som_symbol_data (syms[i])->stringtab_offset = strings_size;
252b5132
RH		 3552 p += length + 1;
3553 strings_size += length + 1;
3554
3555 /* Always align up to the next word boundary. */
3556 while (strings_size % 4)
7eae7d22 3557 {
252b5132
RH		 3558 bfd_put_8 (abfd, 0, p);
3559 strings_size++;
3560 p++;
7eae7d22 3561 }
252b5132
RH		 3562 }
3563
3564 /* Scribble out any partial block. */
dc810e39 3565 amt = p - tmp_space;
116c20d2 3566 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
b34976b6 3567 return FALSE;
252b5132
RH		 3568
3569 *string_sizep = strings_size;
b34976b6 3570 return TRUE;
252b5132
RH		 3571}
3572
6fa957a9 3573/* Compute variable information to be placed in the SOM headers,
252b5132
RH		 3574 space/subspace dictionaries, relocation streams, etc. Begin
3575 writing parts of the object file. */
3576
b34976b6 3577static bfd_boolean
116c20d2 3578som_begin_writing (bfd *abfd)
252b5132
RH		 3579{
3580 unsigned long current_offset = 0;
a96afa0f 3581 unsigned int strings_size = 0;
252b5132
RH		 3582 unsigned long num_spaces, num_subspaces, i;
3583 asection *section;
3584 unsigned int total_subspaces = 0;
3585 struct som_exec_auxhdr *exec_header = NULL;
3586
6fa957a9 3587 /* The file header will always be first in an object file,
252b5132
RH		 3588 everything else can be in random locations. To keep things
3589 "simple" BFD will lay out the object file in the manner suggested
3590 by the PRO ABI for PA-RISC Systems. */
3591
3592 /* Before any output can really begin offsets for all the major
3593 portions of the object file must be computed. So, starting
3594 with the initial file header compute (and sometimes write)
3595 each portion of the object file. */
3596
3597 /* Make room for the file header, it's contents are not complete
3598 yet, so it can not be written at this time. */
e1f000f6 3599 current_offset += sizeof (struct som_external_header);
252b5132
RH		 3600
3601 /* Any auxiliary headers will follow the file header. Right now
3602 we support only the copyright and version headers. */
3603 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3604 obj_som_file_hdr (abfd)->aux_header_size = 0;
3605 if (abfd->flags & (EXEC_P | DYNAMIC))
3606 {
3607 /* Parts of the exec header will be filled in later, so
3608 delay writing the header itself. Fill in the defaults,
3609 and write it later. */
e1f000f6 3610 current_offset += sizeof (struct som_external_exec_auxhdr);
252b5132 3611 obj_som_file_hdr (abfd)->aux_header_size
e1f000f6 3612 += sizeof (struct som_external_exec_auxhdr);
252b5132
RH		 3613 exec_header = obj_som_exec_hdr (abfd);
3614 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3615 exec_header->som_auxhdr.length = 40;
3616 }
3617 if (obj_som_version_hdr (abfd) != NULL)
3618 {
e1f000f6 3619 struct som_external_string_auxhdr ext_string_auxhdr;
dc810e39 3620 bfd_size_type len;
252b5132 3621
dc810e39 3622 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3623 return FALSE;
252b5132
RH		 3624
3625 /* Write the aux_id structure and the string length. */
e1f000f6 3626 len = sizeof (struct som_external_string_auxhdr);
252b5132
RH		 3627 obj_som_file_hdr (abfd)->aux_header_size += len;
3628 current_offset += len;
e1f000f6
TG		 3629 som_swap_string_auxhdr_out
3630 (obj_som_version_hdr (abfd), &ext_string_auxhdr);
3631 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
b34976b6 3632 return FALSE;
252b5132
RH		 3633
3634 /* Write the version string. */
e1f000f6 3635 len = obj_som_version_hdr (abfd)->header_id.length - 4;
252b5132
RH		 3636 obj_som_file_hdr (abfd)->aux_header_size += len;
3637 current_offset += len;
e1f000f6 3638 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->string, len, abfd)
dc810e39 3639 != len)
b34976b6 3640 return FALSE;
252b5132
RH		 3641 }
3642
3643 if (obj_som_copyright_hdr (abfd) != NULL)
3644 {
e1f000f6 3645 struct som_external_string_auxhdr ext_string_auxhdr;
dc810e39 3646 bfd_size_type len;
252b5132 3647
dc810e39 3648 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
b34976b6 3649 return FALSE;
252b5132
RH		 3650
3651 /* Write the aux_id structure and the string length. */
e1f000f6 3652 len = sizeof (struct som_external_string_auxhdr);
252b5132
RH		 3653 obj_som_file_hdr (abfd)->aux_header_size += len;
3654 current_offset += len;
e1f000f6
TG		 3655 som_swap_string_auxhdr_out
3656 (obj_som_copyright_hdr (abfd), &ext_string_auxhdr);
3657 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
b34976b6 3658 return FALSE;
252b5132
RH		 3659
3660 /* Write the copyright string. */
e1f000f6 3661 len = obj_som_copyright_hdr (abfd)->header_id.length - 4;
252b5132
RH		 3662 obj_som_file_hdr (abfd)->aux_header_size += len;
3663 current_offset += len;
e1f000f6 3664 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->string, len, abfd)
dc810e39 3665 != len)
b34976b6 3666 return FALSE;
252b5132
RH		 3667 }
3668
3669 /* Next comes the initialization pointers; we have no initialization
3670 pointers, so current offset does not change. */
3671 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3672 obj_som_file_hdr (abfd)->init_array_total = 0;
3673
3674 /* Next are the space records. These are fixed length records.
3675
3676 Count the number of spaces to determine how much room is needed
3677 in the object file for the space records.
3678
3679 The names of the spaces are stored in a separate string table,
3680 and the index for each space into the string table is computed
3681 below. Therefore, it is not possible to write the space headers
3682 at this time. */
3683 num_spaces = som_count_spaces (abfd);
3684 obj_som_file_hdr (abfd)->space_location = current_offset;
3685 obj_som_file_hdr (abfd)->space_total = num_spaces;
e1f000f6
TG		 3686 current_offset +=
3687 num_spaces * sizeof (struct som_external_space_dictionary_record);
252b5132
RH		 3688
3689 /* Next are the subspace records. These are fixed length records.
3690
3691 Count the number of subspaes to determine how much room is needed
3692 in the object file for the subspace records.
3693
3694 A variety if fields in the subspace record are still unknown at
3695 this time (index into string table, fixup stream location/size, etc). */
3696 num_subspaces = som_count_subspaces (abfd);
3697 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3698 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
351e2b5a 3699 current_offset
e1f000f6 3700 += num_subspaces * sizeof (struct som_external_subspace_dictionary_record);
252b5132
RH		 3701
3702 /* Next is the string table for the space/subspace names. We will
3703 build and write the string table on the fly. At the same time
3704 we will fill in the space/subspace name index fields. */
3705
3706 /* The string table needs to be aligned on a word boundary. */
3707 if (current_offset % 4)
3708 current_offset += (4 - (current_offset % 4));
3709
6fa957a9 3710 /* Mark the offset of the space/subspace string table in the
252b5132
RH		 3711 file header. */
3712 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3713
3714 /* Scribble out the space strings. */
82e51918 3715 if (! som_write_space_strings (abfd, current_offset, &strings_size))
b34976b6 3716 return FALSE;
252b5132
RH		 3717
3718 /* Record total string table size in the header and update the
3719 current offset. */
3720 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3721 current_offset += strings_size;
3722
6fa957a9 3723 /* Next is the compilation unit. */
252b5132
RH		 3724 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3725 obj_som_file_hdr (abfd)->compiler_total = 0;
6fa957a9 3726 if (obj_som_compilation_unit (abfd))
252b5132
RH		 3727 {
3728 obj_som_file_hdr (abfd)->compiler_total = 1;
e1f000f6 3729 current_offset += sizeof (struct som_external_compilation_unit);
252b5132
RH		 3730 }
3731
3732 /* Now compute the file positions for the loadable subspaces, taking
3733 care to make sure everything stays properly aligned. */
3734
3735 section = abfd->sections;
3736 for (i = 0; i < num_spaces; i++)
3737 {
3738 asection *subsection;
3739 int first_subspace;
3740 unsigned int subspace_offset = 0;
3741
3742 /* Find a space. */
3743 while (!som_is_space (section))
3744 section = section->next;
3745
3746 first_subspace = 1;
3747 /* Now look for all its subspaces. */
3748 for (subsection = abfd->sections;
3749 subsection != NULL;
3750 subsection = subsection->next)
3751 {
3752
3753 if (!som_is_subspace (subsection)
3754 || !som_is_container (section, subsection)
3755 || (subsection->flags & SEC_ALLOC) == 0)
3756 continue;
3757
3758 /* If this is the first subspace in the space, and we are
3759 building an executable, then take care to make sure all
3760 the alignments are correct and update the exec header. */
3761 if (first_subspace
3762 && (abfd->flags & (EXEC_P | DYNAMIC)))
3763 {
3764 /* Demand paged executables have each space aligned to a
3765 page boundary. Sharable executables (write-protected
3766 text) have just the private (aka data & bss) space aligned
3767 to a page boundary. Ugh. Not true for HPUX.
3768
3769 The HPUX kernel requires the text to always be page aligned
3770 within the file regardless of the executable's type. */
3771 if (abfd->flags & (D_PAGED | DYNAMIC)
3772 || (subsection->flags & SEC_CODE)
3773 || ((abfd->flags & WP_TEXT)
3774 && (subsection->flags & SEC_DATA)))
3775 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3776
3777 /* Update the exec header. */
3778 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3779 {
3780 exec_header->exec_tmem = section->vma;
3781 exec_header->exec_tfile = current_offset;
3782 }
3783 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3784 {
3785 exec_header->exec_dmem = section->vma;
3786 exec_header->exec_dfile = current_offset;
3787 }
3788
3789 /* Keep track of exactly where we are within a particular
3790 space. This is necessary as the braindamaged HPUX
6fa957a9 3791 loader will create holes between subspaces *and*
252b5132
RH		 3792 subspace alignments are *NOT* preserved. What a crock. */
3793 subspace_offset = subsection->vma;
3794
3795 /* Only do this for the first subspace within each space. */
3796 first_subspace = 0;
3797 }
3798 else if (abfd->flags & (EXEC_P | DYNAMIC))
3799 {
3800 /* The braindamaged HPUX loader may have created a hole
3801 between two subspaces. It is *not* sufficient to use
3802 the alignment specifications within the subspaces to
3803 account for these holes -- I've run into at least one
3804 case where the loader left one code subspace unaligned
3805 in a final executable.
3806
3807 To combat this we keep a current offset within each space,
3808 and use the subspace vma fields to detect and preserve
3809 holes. What a crock!
3810
3811 ps. This is not necessary for unloadable space/subspaces. */
3812 current_offset += subsection->vma - subspace_offset;
3813 if (subsection->flags & SEC_CODE)
3814 exec_header->exec_tsize += subsection->vma - subspace_offset;
3815 else
3816 exec_header->exec_dsize += subsection->vma - subspace_offset;
3817 subspace_offset += subsection->vma - subspace_offset;
3818 }
3819
252b5132
RH		 3820 subsection->target_index = total_subspaces++;
3821 /* This is real data to be loaded from the file. */
3822 if (subsection->flags & SEC_LOAD)
3823 {
3824 /* Update the size of the code & data. */
3825 if (abfd->flags & (EXEC_P | DYNAMIC)
3826 && subsection->flags & SEC_CODE)
eea6121a 3827 exec_header->exec_tsize += subsection->size;
252b5132
RH		 3828 else if (abfd->flags & (EXEC_P | DYNAMIC)
3829 && subsection->flags & SEC_DATA)
eea6121a 3830 exec_header->exec_dsize += subsection->size;
252b5132
RH		 3831 som_section_data (subsection)->subspace_dict->file_loc_init_value
3832 = current_offset;
3833 subsection->filepos = current_offset;
eea6121a
AM		 3834 current_offset += subsection->size;
3835 subspace_offset += subsection->size;
252b5132
RH		 3836 }
3837 /* Looks like uninitialized data. */
3838 else
3839 {
3840 /* Update the size of the bss section. */
3841 if (abfd->flags & (EXEC_P | DYNAMIC))
eea6121a 3842 exec_header->exec_bsize += subsection->size;
252b5132
RH		 3843
3844 som_section_data (subsection)->subspace_dict->file_loc_init_value
3845 = 0;
3846 som_section_data (subsection)->subspace_dict->
3847 initialization_length = 0;
3848 }
3849 }
3850 /* Goto the next section. */
6fa957a9 3851 section = section->next;
252b5132
RH		 3852 }
3853
3854 /* Finally compute the file positions for unloadable subspaces.
3855 If building an executable, start the unloadable stuff on its
3856 own page. */
3857
3858 if (abfd->flags & (EXEC_P | DYNAMIC))
3859 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3860
3861 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3862 section = abfd->sections;
3863 for (i = 0; i < num_spaces; i++)
3864 {
3865 asection *subsection;
3866
3867 /* Find a space. */
3868 while (!som_is_space (section))
3869 section = section->next;
3870
3871 if (abfd->flags & (EXEC_P | DYNAMIC))
3872 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3873
3874 /* Now look for all its subspaces. */
3875 for (subsection = abfd->sections;
3876 subsection != NULL;
3877 subsection = subsection->next)
3878 {
6fa957a9 3879
252b5132
RH		 3880 if (!som_is_subspace (subsection)
3881 || !som_is_container (section, subsection)
3882 || (subsection->flags & SEC_ALLOC) != 0)
3883 continue;
3884
3885 subsection->target_index = total_subspaces++;
3886 /* This is real data to be loaded from the file. */
3887 if ((subsection->flags & SEC_LOAD) == 0)
3888 {
3889 som_section_data (subsection)->subspace_dict->file_loc_init_value
3890 = current_offset;
3891 subsection->filepos = current_offset;
eea6121a 3892 current_offset += subsection->size;
252b5132
RH		 3893 }
3894 /* Looks like uninitialized data. */
3895 else
3896 {
3897 som_section_data (subsection)->subspace_dict->file_loc_init_value
3898 = 0;
3899 som_section_data (subsection)->subspace_dict->
eea6121a 3900 initialization_length = subsection->size;
252b5132
RH		 3901 }
3902 }
3903 /* Goto the next section. */
6fa957a9 3904 section = section->next;
252b5132
RH		 3905 }
3906
3907 /* If building an executable, then make sure to seek to and write
3908 one byte at the end of the file to make sure any necessary
3909 zeros are filled in. Ugh. */
3910 if (abfd->flags & (EXEC_P | DYNAMIC))
3911 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
dc810e39 3912 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
b34976b6 3913 return FALSE;
116c20d2 3914 if (bfd_bwrite ((void *) "", (bfd_size_type) 1, abfd) != 1)
b34976b6 3915 return FALSE;
252b5132
RH		 3916
3917 obj_som_file_hdr (abfd)->unloadable_sp_size
3918 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3919
3920 /* Loader fixups are not supported in any way shape or form. */
3921 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3922 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3923
3924 /* Done. Store the total size of the SOM so far. */
3925 obj_som_file_hdr (abfd)->som_length = current_offset;
3926
b34976b6 3927 return TRUE;
252b5132
RH		 3928}
3929
3930/* Finally, scribble out the various headers to the disk. */
3931
b34976b6 3932static bfd_boolean
116c20d2 3933som_finish_writing (bfd *abfd)
252b5132
RH		 3934{
3935 int num_spaces = som_count_spaces (abfd);
3936 asymbol **syms = bfd_get_outsymbols (abfd);
a96afa0f 3937 int i, num_syms;
252b5132
RH		 3938 int subspace_index = 0;
3939 file_ptr location;
3940 asection *section;
3941 unsigned long current_offset;
a96afa0f 3942 unsigned int strings_size, total_reloc_size;
dc810e39 3943 bfd_size_type amt;
e1f000f6 3944 struct som_external_header ext_header;
252b5132 3945
17617495
JL		 3946 /* We must set up the version identifier here as objcopy/strip copy
3947 private BFD data too late for us to handle this in som_begin_writing. */
3948 if (obj_som_exec_data (abfd)
3949 && obj_som_exec_data (abfd)->version_id)
3950 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3951 else
3952 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3953
252b5132
RH		 3954 /* Next is the symbol table. These are fixed length records.
3955
3956 Count the number of symbols to determine how much room is needed
3957 in the object file for the symbol table.
3958
3959 The names of the symbols are stored in a separate string table,
3960 and the index for each symbol name into the string table is computed
3961 below. Therefore, it is not possible to write the symbol table
6fa957a9 3962 at this time.
252b5132
RH		 3963
3964 These used to be output before the subspace contents, but they
3965 were moved here to work around a stupid bug in the hpux linker
3966 (fixed in hpux10). */
3967 current_offset = obj_som_file_hdr (abfd)->som_length;
3968
3969 /* Make sure we're on a word boundary. */
3970 if (current_offset % 4)
6fa957a9 3971 current_offset += (4 - (current_offset % 4));
252b5132
RH		 3972
3973 num_syms = bfd_get_symcount (abfd);
3974 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3975 obj_som_file_hdr (abfd)->symbol_total = num_syms;
e1f000f6
TG		 3976 current_offset +=
3977 num_syms * sizeof (struct som_external_symbol_dictionary_record);
252b5132
RH		 3978
3979 /* Next are the symbol strings.
3980 Align them to a word boundary. */
3981 if (current_offset % 4)
3982 current_offset += (4 - (current_offset % 4));
3983 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3984
3985 /* Scribble out the symbol strings. */
82e51918
AM		 3986 if (! som_write_symbol_strings (abfd, current_offset, syms,
3987 num_syms, &strings_size,
3988 obj_som_compilation_unit (abfd)))
b34976b6 3989 return FALSE;
252b5132
RH		 3990
3991 /* Record total string table size in header and update the
3992 current offset. */
3993 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3994 current_offset += strings_size;
3995
3996 /* Do prep work before handling fixups. */
3997 som_prep_for_fixups (abfd,
3998 bfd_get_outsymbols (abfd),
3999 bfd_get_symcount (abfd));
4000
4001 /* At the end of the file is the fixup stream which starts on a
4002 word boundary. */
4003 if (current_offset % 4)
6fa957a9 4004 current_offset += (4 - (current_offset % 4));
252b5132
RH		 4005 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
4006
4007 /* Write the fixups and update fields in subspace headers which
4008 relate to the fixup stream. */
82e51918 4009 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
b34976b6 4010 return FALSE;
252b5132
RH		 4011
4012 /* Record the total size of the fixup stream in the file header. */
4013 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
4014
4015 /* Done. Store the total size of the SOM. */
4016 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
6fa957a9 4017
252b5132
RH		 4018 /* Now that the symbol table information is complete, build and
4019 write the symbol table. */
82e51918 4020 if (! som_build_and_write_symbol_table (abfd))
b34976b6 4021 return FALSE;
252b5132
RH		 4022
4023 /* Subspaces are written first so that we can set up information
4024 about them in their containing spaces as the subspace is written. */
4025
4026 /* Seek to the start of the subspace dictionary records. */
4027 location = obj_som_file_hdr (abfd)->subspace_location;
dc810e39 4028 if (bfd_seek (abfd, location, SEEK_SET) != 0)
b34976b6 4029 return FALSE;
252b5132
RH		 4030
4031 section = abfd->sections;
4032 /* Now for each loadable space write out records for its subspaces. */
4033 for (i = 0; i < num_spaces; i++)
4034 {
4035 asection *subsection;
4036
4037 /* Find a space. */
4038 while (!som_is_space (section))
4039 section = section->next;
4040
4041 /* Now look for all its subspaces. */
4042 for (subsection = abfd->sections;
4043 subsection != NULL;
4044 subsection = subsection->next)
4045 {
e1f000f6 4046 struct som_external_subspace_dictionary_record ext_subspace_dict;
6fa957a9 4047
252b5132
RH		 4048 /* Skip any section which does not correspond to a space
4049 or subspace. Or does not have SEC_ALLOC set (and therefore
4050 has no real bits on the disk). */
4051 if (!som_is_subspace (subsection)
4052 || !som_is_container (section, subsection)
4053 || (subsection->flags & SEC_ALLOC) == 0)
4054 continue;
4055
4056 /* If this is the first subspace for this space, then save
4057 the index of the subspace in its containing space. Also
4058 set "is_loadable" in the containing space. */
4059
4060 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4061 {
4062 som_section_data (section)->space_dict->is_loadable = 1;
4063 som_section_data (section)->space_dict->subspace_index
4064 = subspace_index;
4065 }
4066
4067 /* Increment the number of subspaces seen and the number of
4068 subspaces contained within the current space. */
4069 subspace_index++;
4070 som_section_data (section)->space_dict->subspace_quantity++;
4071
4072 /* Mark the index of the current space within the subspace's
4073 dictionary record. */
4074 som_section_data (subsection)->subspace_dict->space_index = i;
6fa957a9 4075
252b5132 4076 /* Dump the current subspace header. */
e1f000f6
TG		 4077 som_swap_subspace_dictionary_record_out
4078 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
351e2b5a 4079 amt = sizeof (struct som_subspace_dictionary_record);
e1f000f6 4080 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
b34976b6 4081 return FALSE;
252b5132
RH		 4082 }
4083 /* Goto the next section. */
6fa957a9 4084 section = section->next;
252b5132
RH		 4085 }
4086
4087 /* Now repeat the process for unloadable subspaces. */
4088 section = abfd->sections;
4089 /* Now for each space write out records for its subspaces. */
4090 for (i = 0; i < num_spaces; i++)
4091 {
4092 asection *subsection;
4093
4094 /* Find a space. */
4095 while (!som_is_space (section))
4096 section = section->next;
4097
4098 /* Now look for all its subspaces. */
4099 for (subsection = abfd->sections;
4100 subsection != NULL;
4101 subsection = subsection->next)
4102 {
e1f000f6 4103 struct som_external_subspace_dictionary_record ext_subspace_dict;
6fa957a9 4104
252b5132
RH		 4105 /* Skip any section which does not correspond to a space or
4106 subspace, or which SEC_ALLOC set (and therefore handled
4107 in the loadable spaces/subspaces code above). */
4108
4109 if (!som_is_subspace (subsection)
4110 || !som_is_container (section, subsection)
4111 || (subsection->flags & SEC_ALLOC) != 0)
4112 continue;
4113
4114 /* If this is the first subspace for this space, then save
4115 the index of the subspace in its containing space. Clear
4116 "is_loadable". */
4117
4118 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4119 {
4120 som_section_data (section)->space_dict->is_loadable = 0;
4121 som_section_data (section)->space_dict->subspace_index
4122 = subspace_index;
4123 }
4124
4125 /* Increment the number of subspaces seen and the number of
4126 subspaces contained within the current space. */
4127 som_section_data (section)->space_dict->subspace_quantity++;
6fa957a9 4128 subspace_index++;
252b5132
RH		 4129
4130 /* Mark the index of the current space within the subspace's
4131 dictionary record. */
4132 som_section_data (subsection)->subspace_dict->space_index = i;
6fa957a9 4133
252b5132 4134 /* Dump this subspace header. */
e1f000f6
TG		 4135 som_swap_subspace_dictionary_record_out
4136 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
351e2b5a 4137 amt = sizeof (struct som_subspace_dictionary_record);
e1f000f6 4138 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
b34976b6 4139 return FALSE;
252b5132
RH		 4140 }
4141 /* Goto the next section. */
6fa957a9 4142 section = section->next;
252b5132
RH		 4143 }
4144
7dee875e 4145 /* All the subspace dictionary records are written, and all the
252b5132
RH		 4146 fields are set up in the space dictionary records.
4147
4148 Seek to the right location and start writing the space
4149 dictionary records. */
4150 location = obj_som_file_hdr (abfd)->space_location;
dc810e39 4151 if (bfd_seek (abfd, location, SEEK_SET) != 0)
b34976b6 4152 return FALSE;
252b5132
RH		 4153
4154 section = abfd->sections;
4155 for (i = 0; i < num_spaces; i++)
4156 {
e1f000f6
TG		 4157 struct som_external_space_dictionary_record ext_space_dict;
4158
252b5132
RH		 4159 /* Find a space. */
4160 while (!som_is_space (section))
4161 section = section->next;
4162
7eae7d22 4163 /* Dump its header. */
e1f000f6
TG		 4164 som_swap_space_dictionary_out (som_section_data (section)->space_dict,
4165 &ext_space_dict);
4166 amt = sizeof (struct som_external_space_dictionary_record);
4167 if (bfd_bwrite (&ext_space_dict, amt, abfd) != amt)
b34976b6 4168 return FALSE;
252b5132
RH		 4169
4170 /* Goto the next section. */
4171 section = section->next;
4172 }
4173
4174 /* Write the compilation unit record if there is one. */
4175 if (obj_som_compilation_unit (abfd))
4176 {
e1f000f6
TG		 4177 struct som_external_compilation_unit ext_comp_unit;
4178
252b5132 4179 location = obj_som_file_hdr (abfd)->compiler_location;
dc810e39 4180 if (bfd_seek (abfd, location, SEEK_SET) != 0)
b34976b6 4181 return FALSE;
252b5132 4182
e1f000f6
TG		 4183 som_swap_compilation_unit_out
4184 (obj_som_compilation_unit (abfd), &ext_comp_unit);
4185
4186 amt = sizeof (struct som_external_compilation_unit);
4187 if (bfd_bwrite (&ext_comp_unit, amt, abfd) != amt)
b34976b6 4188 return FALSE;
252b5132
RH		 4189 }
4190
4191 /* Setting of the system_id has to happen very late now that copying of
4192 BFD private data happens *after* section contents are set. */
4193 if (abfd->flags & (EXEC_P | DYNAMIC))
7eae7d22 4194 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
252b5132 4195 else if (bfd_get_mach (abfd) == pa20)
7eae7d22 4196 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
252b5132 4197 else if (bfd_get_mach (abfd) == pa11)
7eae7d22 4198 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
252b5132 4199 else
7eae7d22 4200 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
252b5132 4201
e1f000f6 4202 /* Swap and compute the checksum for the file header just before writing
252b5132 4203 the header to disk. */
e1f000f6
TG		 4204 som_swap_header_out (obj_som_file_hdr (abfd), &ext_header);
4205 bfd_putb32 (som_compute_checksum (&ext_header), ext_header.checksum);
252b5132
RH		 4206
4207 /* Only thing left to do is write out the file header. It is always
4208 at location zero. Seek there and write it. */
dc810e39 4209 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
b34976b6 4210 return FALSE;
e1f000f6
TG		 4211 amt = sizeof (struct som_external_header);
4212 if (bfd_bwrite (&ext_header, amt, abfd) != amt)
b34976b6 4213 return FALSE;
252b5132
RH		 4214
4215 /* Now write the exec header. */
4216 if (abfd->flags & (EXEC_P | DYNAMIC))
4217 {
4218 long tmp, som_length;
4219 struct som_exec_auxhdr *exec_header;
e1f000f6 4220 struct som_external_exec_auxhdr ext_exec_header;
252b5132
RH		 4221
4222 exec_header = obj_som_exec_hdr (abfd);
4223 exec_header->exec_entry = bfd_get_start_address (abfd);
4224 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
4225
4226 /* Oh joys. Ram some of the BSS data into the DATA section
7dee875e 4227 to be compatible with how the hp linker makes objects
252b5132
RH		 4228 (saves memory space). */
4229 tmp = exec_header->exec_dsize;
4230 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
4231 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
4232 if (exec_header->exec_bsize < 0)
4233 exec_header->exec_bsize = 0;
4234 exec_header->exec_dsize = tmp;
4235
4236 /* Now perform some sanity checks. The idea is to catch bogons now and
4237 inform the user, instead of silently generating a bogus file. */
4238 som_length = obj_som_file_hdr (abfd)->som_length;
4239 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
4240 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
4241 {
4242 bfd_set_error (bfd_error_bad_value);
b34976b6 4243 return FALSE;
252b5132
RH		 4244 }
4245
e1f000f6
TG		 4246 som_swap_exec_auxhdr_out (exec_header, &ext_exec_header);
4247
252b5132 4248 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
dc810e39 4249 SEEK_SET) != 0)
b34976b6 4250 return FALSE;
252b5132 4251
e1f000f6
TG		 4252 amt = sizeof (ext_exec_header);
4253 if (bfd_bwrite (&ext_exec_header, amt, abfd) != amt)
b34976b6 4254 return FALSE;
252b5132 4255 }
b34976b6 4256 return TRUE;
252b5132
RH		 4257}
4258
4259/* Compute and return the checksum for a SOM file header. */
4260
4261static unsigned long
e1f000f6 4262som_compute_checksum (struct som_external_header *hdr)
252b5132
RH		 4263{
4264 unsigned long checksum, count, i;
e1f000f6 4265 unsigned long *buffer = (unsigned long *) hdr;
252b5132
RH		 4266
4267 checksum = 0;
e1f000f6 4268 count = sizeof (struct som_external_header) / 4;
252b5132
RH		 4269 for (i = 0; i < count; i++)
4270 checksum ^= *(buffer + i);
4271
4272 return checksum;
4273}
4274
4275static void
116c20d2
NC		 4276som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
4277 asymbol *sym,
4278 struct som_misc_symbol_info *info)
252b5132
RH		 4279{
4280 /* Initialize. */
4281 memset (info, 0, sizeof (struct som_misc_symbol_info));
4282
4283 /* The HP SOM linker requires detailed type information about
4284 all symbols (including undefined symbols!). Unfortunately,
4285 the type specified in an import/export statement does not
4286 always match what the linker wants. Severe braindamage. */
6fa957a9 4287
252b5132
RH		 4288 /* Section symbols will not have a SOM symbol type assigned to
4289 them yet. Assign all section symbols type ST_DATA. */
4290 if (sym->flags & BSF_SECTION_SYM)
4291 info->symbol_type = ST_DATA;
4292 else
4293 {
351e2b5a
DA		 4294 /* For BFD style common, the linker will choke unless we set the
4295 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
252b5132
RH		 4296 if (bfd_is_com_section (sym->section))
4297 {
252b5132 4298 info->symbol_type = ST_STORAGE;
351e2b5a 4299 info->symbol_scope = SS_UNSAT;
252b5132
RH		 4300 }
4301
4302 /* It is possible to have a symbol without an associated
4303 type. This happens if the user imported the symbol
4304 without a type and the symbol was never defined
4305 locally. If BSF_FUNCTION is set for this symbol, then
4306 assign it type ST_CODE (the HP linker requires undefined
4307 external functions to have type ST_CODE rather than ST_ENTRY). */
4308 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4309 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4310 && bfd_is_und_section (sym->section)
4311 && sym->flags & BSF_FUNCTION)
4312 info->symbol_type = ST_CODE;
4313
4314 /* Handle function symbols which were defined in this file.
4315 They should have type ST_ENTRY. Also retrieve the argument
4316 relocation bits from the SOM backend information. */
4317 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4318 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4319 && (sym->flags & BSF_FUNCTION))
4320 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4321 && (sym->flags & BSF_FUNCTION)))
4322 {
4323 info->symbol_type = ST_ENTRY;
4324 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4325 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4326 }
4327
4328 /* For unknown symbols set the symbol's type based on the symbol's
4329 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4330 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4331 {
f501de17
DA		 4332 if (bfd_is_abs_section (sym->section))
4333 info->symbol_type = ST_ABSOLUTE;
4334 else if (sym->section->flags & SEC_CODE)
252b5132
RH		 4335 info->symbol_type = ST_CODE;
4336 else
4337 info->symbol_type = ST_DATA;
4338 }
6fa957a9 4339
252b5132
RH		 4340 /* From now on it's a very simple mapping. */
4341 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4342 info->symbol_type = ST_ABSOLUTE;
4343 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4344 info->symbol_type = ST_CODE;
4345 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4346 info->symbol_type = ST_DATA;
4347 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4348 info->symbol_type = ST_MILLICODE;
4349 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4350 info->symbol_type = ST_PLABEL;
4351 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4352 info->symbol_type = ST_PRI_PROG;
4353 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4354 info->symbol_type = ST_SEC_PROG;
4355 }
6fa957a9 4356
252b5132
RH		 4357 /* Now handle the symbol's scope. Exported data which is not
4358 in the common section has scope SS_UNIVERSAL. Note scope
4359 of common symbols was handled earlier! */
351e2b5a
DA		 4360 if (bfd_is_com_section (sym->section))
4361 ;
4362 else if (bfd_is_und_section (sym->section))
252b5132 4363 info->symbol_scope = SS_UNSAT;
351e2b5a 4364 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
252b5132
RH		 4365 info->symbol_scope = SS_UNIVERSAL;
4366 /* Anything else which is not in the common section has scope
4367 SS_LOCAL. */
351e2b5a 4368 else
252b5132
RH		 4369 info->symbol_scope = SS_LOCAL;
4370
4371 /* Now set the symbol_info field. It has no real meaning
4372 for undefined or common symbols, but the HP linker will
4373 choke if it's not set to some "reasonable" value. We
4374 use zero as a reasonable value. */
4375 if (bfd_is_com_section (sym->section)
4376 || bfd_is_und_section (sym->section)
4377 || bfd_is_abs_section (sym->section))
4378 info->symbol_info = 0;
6fa957a9 4379 /* For all other symbols, the symbol_info field contains the
252b5132
RH		 4380 subspace index of the space this symbol is contained in. */
4381 else
4382 info->symbol_info = sym->section->target_index;
4383
4384 /* Set the symbol's value. */
4385 info->symbol_value = sym->value + sym->section->vma;
ba20314e 4386
351e2b5a 4387 /* The secondary_def field is for "weak" symbols. */
ba20314e 4388 if (sym->flags & BSF_WEAK)
b34976b6 4389 info->secondary_def = TRUE;
ba20314e 4390 else
b34976b6 4391 info->secondary_def = FALSE;
ba20314e 4392
351e2b5a
DA		 4393 /* The is_comdat, is_common and dup_common fields provide various
4394 flavors of common.
4395
4396 For data symbols, setting IS_COMMON provides Fortran style common
4397 (duplicate definitions and overlapped initialization). Setting both
4398 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4399 definitions as long as they are all the same length). In a shared
4400 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4401 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4402 symbol except in that it loses its IS_COMDAT flag in a shared link.
4403
4404 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4405 DUP_COMMON code symbols are not exported from shared libraries.
4406 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4407
4408 We take a simplified approach to setting the is_comdat, is_common
4409 and dup_common flags in symbols based on the flag settings of their
4410 subspace. This avoids having to add directives like `.comdat' but
4411 the linker behavior is probably undefined if there is more than one
4412 universal symbol (comdat key sysmbol) in a subspace.
4413
4414 The behavior of these flags is not well documentmented, so there
4415 may be bugs and some surprising interactions with other flags. */
4416 if (som_section_data (sym->section)
4417 && som_section_data (sym->section)->subspace_dict
4418 && info->symbol_scope == SS_UNIVERSAL
4419 && (info->symbol_type == ST_ENTRY
4420 || info->symbol_type == ST_CODE
4421 || info->symbol_type == ST_DATA))
4422 {
4423 info->is_comdat
4424 = som_section_data (sym->section)->subspace_dict->is_comdat;
4425 info->is_common
4426 = som_section_data (sym->section)->subspace_dict->is_common;
4427 info->dup_common
4428 = som_section_data (sym->section)->subspace_dict->dup_common;
4429 }
252b5132
RH		 4430}
4431
4432/* Build and write, in one big chunk, the entire symbol table for
4433 this BFD. */
4434
b34976b6 4435static bfd_boolean
116c20d2 4436som_build_and_write_symbol_table (bfd *abfd)
252b5132
RH		 4437{
4438 unsigned int num_syms = bfd_get_symcount (abfd);
4439 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4440 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
e1f000f6 4441 struct som_external_symbol_dictionary_record *som_symtab = NULL;
dc810e39
AM		 4442 unsigned int i;
4443 bfd_size_type symtab_size;
252b5132
RH		 4444
4445 /* Compute total symbol table size and allocate a chunk of memory
4446 to hold the symbol table as we build it. */
dc810e39 4447 symtab_size = num_syms;
e1f000f6 4448 symtab_size *= sizeof (struct som_external_symbol_dictionary_record);
116c20d2 4449 som_symtab = bfd_zmalloc (symtab_size);
252b5132
RH		 4450 if (som_symtab == NULL && symtab_size != 0)
4451 goto error_return;
252b5132
RH		 4452
4453 /* Walk over each symbol. */
4454 for (i = 0; i < num_syms; i++)
4455 {
4456 struct som_misc_symbol_info info;
e1f000f6 4457 unsigned int flags;
252b5132 4458
6fa957a9
KH		 4459 /* This is really an index into the symbol strings table.
4460 By the time we get here, the index has already been
252b5132 4461 computed and stored into the name field in the BFD symbol. */
e1f000f6
TG		 4462 bfd_putb32 (som_symbol_data (bfd_syms[i])->stringtab_offset,
4463 som_symtab[i].name);
252b5132
RH		 4464
4465 /* Derive SOM information from the BFD symbol. */
4466 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4467
4468 /* Now use it. */
e1f000f6
TG		 4469 flags = (info.symbol_type << SOM_SYMBOL_TYPE_SH)
4470 | (info.symbol_scope << SOM_SYMBOL_SCOPE_SH)
4471 | (info.arg_reloc << SOM_SYMBOL_ARG_RELOC_SH)
4472 | (3 << SOM_SYMBOL_XLEAST_SH)
4473 | (info.secondary_def ? SOM_SYMBOL_SECONDARY_DEF : 0)
4474 | (info.is_common ? SOM_SYMBOL_IS_COMMON : 0)
4475 | (info.dup_common ? SOM_SYMBOL_DUP_COMMON : 0);
4476 bfd_putb32 (flags, som_symtab[i].flags);
4477
4478 flags = (info.symbol_info << SOM_SYMBOL_SYMBOL_INFO_SH)
4479 | (info.is_comdat ? SOM_SYMBOL_IS_COMDAT : 0);
4480 bfd_putb32 (flags, som_symtab[i].info);
4481 bfd_putb32 (info.symbol_value | info.priv_level,
4482 som_symtab[i].symbol_value);
252b5132
RH		 4483 }
4484
4485 /* Everything is ready, seek to the right location and
4486 scribble out the symbol table. */
4487 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
b34976b6 4488 return FALSE;
252b5132 4489
116c20d2 4490 if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
252b5132
RH		 4491 goto error_return;
4492
4493 if (som_symtab != NULL)
4494 free (som_symtab);
b34976b6 4495 return TRUE;
252b5132
RH		 4496 error_return:
4497 if (som_symtab != NULL)
4498 free (som_symtab);
b34976b6 4499 return FALSE;
252b5132
RH		 4500}
4501
6fa957a9 4502/* Write an object in SOM format. */
252b5132 4503
b34976b6 4504static bfd_boolean
116c20d2 4505som_write_object_contents (bfd *abfd)
252b5132 4506{
82e51918 4507 if (! abfd->output_has_begun)
252b5132
RH		 4508 {
4509 /* Set up fixed parts of the file, space, and subspace headers.
4510 Notify the world that output has begun. */
4511 som_prep_headers (abfd);
b34976b6 4512 abfd->output_has_begun = TRUE;
252b5132
RH		 4513 /* Start writing the object file. This include all the string
4514 tables, fixup streams, and other portions of the object file. */
4515 som_begin_writing (abfd);
4516 }
4517
116c20d2 4518 return som_finish_writing (abfd);
252b5132 4519}
252b5132
RH		 4520\f
4521/* Read and save the string table associated with the given BFD. */
4522
b34976b6 4523static bfd_boolean
116c20d2 4524som_slurp_string_table (bfd *abfd)
252b5132
RH		 4525{
4526 char *stringtab;
dc810e39 4527 bfd_size_type amt;
252b5132
RH		 4528
4529 /* Use the saved version if its available. */
4530 if (obj_som_stringtab (abfd) != NULL)
b34976b6 4531 return TRUE;
252b5132
RH		 4532
4533 /* I don't think this can currently happen, and I'm not sure it should
4534 really be an error, but it's better than getting unpredictable results
4535 from the host's malloc when passed a size of zero. */
4536 if (obj_som_stringtab_size (abfd) == 0)
4537 {
4538 bfd_set_error (bfd_error_no_symbols);
b34976b6 4539 return FALSE;
252b5132
RH		 4540 }
4541
4542 /* Allocate and read in the string table. */
dc810e39 4543 amt = obj_som_stringtab_size (abfd);
9bab7074 4544 stringtab = bfd_zmalloc (amt);
252b5132 4545 if (stringtab == NULL)
b34976b6 4546 return FALSE;
252b5132 4547
dc810e39 4548 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
b34976b6 4549 return FALSE;
6fa957a9 4550
dc810e39 4551 if (bfd_bread (stringtab, amt, abfd) != amt)
b34976b6 4552 return FALSE;
252b5132 4553
6fa957a9 4554 /* Save our results and return success. */
252b5132 4555 obj_som_stringtab (abfd) = stringtab;
b34976b6 4556 return TRUE;
252b5132
RH		 4557}
4558
4559/* Return the amount of data (in bytes) required to hold the symbol
4560 table for this object. */
4561
4562static long
116c20d2 4563som_get_symtab_upper_bound (bfd *abfd)
252b5132
RH		 4564{
4565 if (!som_slurp_symbol_table (abfd))
4566 return -1;
4567
116c20d2 4568 return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
252b5132
RH		 4569}
4570
4571/* Convert from a SOM subspace index to a BFD section. */
4572
36192a8d 4573asection *
e1f000f6
TG		 4574bfd_section_from_som_symbol
4575 (bfd *abfd, struct som_external_symbol_dictionary_record *symbol)
252b5132
RH		 4576{
4577 asection *section;
e1f000f6
TG		 4578 unsigned int flags = bfd_getb32 (symbol->flags);
4579 unsigned int symbol_type = (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
252b5132
RH		 4580
4581 /* The meaning of the symbol_info field changes for functions
4582 within executables. So only use the quick symbol_info mapping for
4583 incomplete objects and non-function symbols in executables. */
4584 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
e1f000f6
TG		 4585 || (symbol_type != ST_ENTRY
4586 && symbol_type != ST_PRI_PROG
4587 && symbol_type != ST_SEC_PROG
4588 && symbol_type != ST_MILLICODE))
252b5132 4589 {
e1f000f6
TG		 4590 int idx = (bfd_getb32 (symbol->info) >> SOM_SYMBOL_SYMBOL_INFO_SH)
4591 & SOM_SYMBOL_SYMBOL_INFO_MASK;
116c20d2 4592
252b5132 4593 for (section = abfd->sections; section != NULL; section = section->next)
f664f618 4594 if (section->target_index == idx && som_is_subspace (section))
252b5132 4595 return section;
252b5132
RH		 4596 }
4597 else
4598 {
e1f000f6 4599 unsigned int value = bfd_getb32 (symbol->symbol_value);
252b5132
RH		 4600
4601 /* For executables we will have to use the symbol's address and
4602 find out what section would contain that address. Yuk. */
4603 for (section = abfd->sections; section; section = section->next)
116c20d2
NC		 4604 if (value >= section->vma
4605 && value <= section->vma + section->size
4606 && som_is_subspace (section))
4607 return section;
252b5132 4608 }
116c20d2
NC		 4609
4610 /* Could be a symbol from an external library (such as an OMOS
4611 shared library). Don't abort. */
4612 return bfd_abs_section_ptr;
252b5132
RH		 4613}
4614
4615/* Read and save the symbol table associated with the given BFD. */
4616
4617static unsigned int
116c20d2 4618som_slurp_symbol_table (bfd *abfd)
252b5132
RH		 4619{
4620 int symbol_count = bfd_get_symcount (abfd);
e1f000f6 4621 int symsize = sizeof (struct som_external_symbol_dictionary_record);
252b5132 4622 char *stringtab;
e1f000f6 4623 struct som_external_symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
252b5132 4624 som_symbol_type *sym, *symbase;
dc810e39 4625 bfd_size_type amt;
252b5132
RH		 4626
4627 /* Return saved value if it exists. */
4628 if (obj_som_symtab (abfd) != NULL)
4629 goto successful_return;
4630
4631 /* Special case. This is *not* an error. */
4632 if (symbol_count == 0)
4633 goto successful_return;
4634
4635 if (!som_slurp_string_table (abfd))
4636 goto error_return;
4637
4638 stringtab = obj_som_stringtab (abfd);
4639
dc810e39
AM		 4640 amt = symbol_count;
4641 amt *= sizeof (som_symbol_type);
116c20d2 4642 symbase = bfd_zmalloc (amt);
252b5132
RH		 4643 if (symbase == NULL)
4644 goto error_return;
252b5132
RH		 4645
4646 /* Read in the external SOM representation. */
dc810e39
AM		 4647 amt = symbol_count;
4648 amt *= symsize;
4649 buf = bfd_malloc (amt);
4650 if (buf == NULL && amt != 0)
252b5132 4651 goto error_return;
dc810e39 4652 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
252b5132 4653 goto error_return;
dc810e39 4654 if (bfd_bread (buf, amt, abfd) != amt)
252b5132
RH		 4655 goto error_return;
4656
4657 /* Iterate over all the symbols and internalize them. */
4658 endbufp = buf + symbol_count;
4659 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4660 {
e1f000f6
TG		 4661 unsigned int flags = bfd_getb32 (bufp->flags);
4662 unsigned int symbol_type =
4663 (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
4664 unsigned int symbol_scope =
4665 (flags >> SOM_SYMBOL_SCOPE_SH) & SOM_SYMBOL_SCOPE_MASK;
4666
252b5132 4667 /* I don't think we care about these. */
e1f000f6 4668 if (symbol_type == ST_SYM_EXT || symbol_type == ST_ARG_EXT)
252b5132
RH		 4669 continue;
4670
4671 /* Set some private data we care about. */
e1f000f6 4672 if (symbol_type == ST_NULL)
252b5132 4673 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
e1f000f6 4674 else if (symbol_type == ST_ABSOLUTE)
252b5132 4675 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
e1f000f6 4676 else if (symbol_type == ST_DATA)
252b5132 4677 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
e1f000f6 4678 else if (symbol_type == ST_CODE)
252b5132 4679 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
e1f000f6 4680 else if (symbol_type == ST_PRI_PROG)
252b5132 4681 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
e1f000f6 4682 else if (symbol_type == ST_SEC_PROG)
252b5132 4683 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
e1f000f6 4684 else if (symbol_type == ST_ENTRY)
252b5132 4685 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
e1f000f6 4686 else if (symbol_type == ST_MILLICODE)
252b5132 4687 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
e1f000f6 4688 else if (symbol_type == ST_PLABEL)
252b5132
RH		 4689 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4690 else
4691 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
e1f000f6
TG		 4692 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc =
4693 (flags >> SOM_SYMBOL_ARG_RELOC_SH) & SOM_SYMBOL_ARG_RELOC_MASK;
252b5132
RH		 4694
4695 /* Some reasonable defaults. */
4696 sym->symbol.the_bfd = abfd;
e1f000f6
TG		 4697 sym->symbol.name = bfd_getb32 (bufp->name) + stringtab;
4698 sym->symbol.value = bfd_getb32 (bufp->symbol_value);
252b5132
RH		 4699 sym->symbol.section = 0;
4700 sym->symbol.flags = 0;
4701
e1f000f6 4702 switch (symbol_type)
252b5132
RH		 4703 {
4704 case ST_ENTRY:
4705 case ST_MILLICODE:
4706 sym->symbol.flags |= BSF_FUNCTION;
4707 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4708 sym->symbol.value & 0x3;
4709 sym->symbol.value &= ~0x3;
4710 break;
4711
4712 case ST_STUB:
4713 case ST_CODE:
4714 case ST_PRI_PROG:
4715 case ST_SEC_PROG:
4716 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4717 sym->symbol.value & 0x3;
4718 sym->symbol.value &= ~0x3;
7da1b175 4719 /* If the symbol's scope is SS_UNSAT, then these are
252b5132 4720 undefined function symbols. */
e1f000f6 4721 if (symbol_scope == SS_UNSAT)
252b5132 4722 sym->symbol.flags |= BSF_FUNCTION;
252b5132
RH		 4723
4724 default:
4725 break;
4726 }
4727
4728 /* Handle scoping and section information. */
e1f000f6 4729 switch (symbol_scope)
252b5132
RH		 4730 {
4731 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4732 so the section associated with this symbol can't be known. */
4733 case SS_EXTERNAL:
e1f000f6 4734 if (symbol_type != ST_STORAGE)
252b5132
RH		 4735 sym->symbol.section = bfd_und_section_ptr;
4736 else
4737 sym->symbol.section = bfd_com_section_ptr;
4738 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4739 break;
4740
4741 case SS_UNSAT:
e1f000f6 4742 if (symbol_type != ST_STORAGE)
252b5132
RH		 4743 sym->symbol.section = bfd_und_section_ptr;
4744 else
4745 sym->symbol.section = bfd_com_section_ptr;
4746 break;
4747
4748 case SS_UNIVERSAL:
4749 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4750 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4751 sym->symbol.value -= sym->symbol.section->vma;
4752 break;
4753
252b5132
RH		 4754 case SS_LOCAL:
4755 sym->symbol.flags |= BSF_LOCAL;
4756 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4757 sym->symbol.value -= sym->symbol.section->vma;
4758 break;
4759 }
4760
ba20314e 4761 /* Check for a weak symbol. */
e1f000f6 4762 if (flags & SOM_SYMBOL_SECONDARY_DEF)
7eae7d22 4763 sym->symbol.flags |= BSF_WEAK;
ba20314e 4764
252b5132
RH		 4765 /* Mark section symbols and symbols used by the debugger.
4766 Note $START$ is a magic code symbol, NOT a section symbol. */
4767 if (sym->symbol.name[0] == '$'
4768 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4769 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4770 sym->symbol.flags |= BSF_SECTION_SYM;
0112cd26 4771 else if (CONST_STRNEQ (sym->symbol.name, "L$0\002"))
252b5132
RH		 4772 {
4773 sym->symbol.flags |= BSF_SECTION_SYM;
4774 sym->symbol.name = sym->symbol.section->name;
4775 }
0112cd26 4776 else if (CONST_STRNEQ (sym->symbol.name, "L$0\001"))
252b5132
RH		 4777 sym->symbol.flags |= BSF_DEBUGGING;
4778
4779 /* Note increment at bottom of loop, since we skip some symbols
b34976b6 4780 we can not include it as part of the for statement. */
252b5132
RH		 4781 sym++;
4782 }
4783
4784 /* We modify the symbol count to record the number of BFD symbols we
4785 created. */
4786 bfd_get_symcount (abfd) = sym - symbase;
4787
4788 /* Save our results and return success. */
4789 obj_som_symtab (abfd) = symbase;
4790 successful_return:
4791 if (buf != NULL)
4792 free (buf);
b34976b6 4793 return (TRUE);
252b5132
RH		 4794
4795 error_return:
4796 if (buf != NULL)
4797 free (buf);
b34976b6 4798 return FALSE;
252b5132
RH		 4799}
4800
4801/* Canonicalize a SOM symbol table. Return the number of entries
4802 in the symbol table. */
4803
4804static long
116c20d2 4805som_canonicalize_symtab (bfd *abfd, asymbol **location)
252b5132
RH		 4806{
4807 int i;
4808 som_symbol_type *symbase;
4809
4810 if (!som_slurp_symbol_table (abfd))
4811 return -1;
4812
4813 i = bfd_get_symcount (abfd);
4814 symbase = obj_som_symtab (abfd);
4815
4816 for (; i > 0; i--, location++, symbase++)
4817 *location = &symbase->symbol;
4818
4819 /* Final null pointer. */
4820 *location = 0;
4821 return (bfd_get_symcount (abfd));
4822}
4823
4824/* Make a SOM symbol. There is nothing special to do here. */
4825
4826static asymbol *
116c20d2 4827som_make_empty_symbol (bfd *abfd)
252b5132 4828{
dc810e39 4829 bfd_size_type amt = sizeof (som_symbol_type);
d3ce72d0 4830 som_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt);
116c20d2 4831
d3ce72d0 4832 if (new_symbol_type == NULL)
116c20d2 4833 return NULL;
d3ce72d0 4834 new_symbol_type->symbol.the_bfd = abfd;
252b5132 4835
d3ce72d0 4836 return &new_symbol_type->symbol;
252b5132
RH		 4837}
4838
4839/* Print symbol information. */
4840
4841static void
116c20d2 4842som_print_symbol (bfd *abfd,
6a808a40 4843 void *afile,
116c20d2
NC		 4844 asymbol *symbol,
4845 bfd_print_symbol_type how)
252b5132
RH		 4846{
4847 FILE *file = (FILE *) afile;
116c20d2 4848
252b5132
RH		 4849 switch (how)
4850 {
4851 case bfd_print_symbol_name:
4852 fprintf (file, "%s", symbol->name);
4853 break;
4854 case bfd_print_symbol_more:
4855 fprintf (file, "som ");
4856 fprintf_vma (file, symbol->value);
4857 fprintf (file, " %lx", (long) symbol->flags);
4858 break;
4859 case bfd_print_symbol_all:
4860 {
dc810e39 4861 const char *section_name;
116c20d2 4862
252b5132 4863 section_name = symbol->section ? symbol->section->name : "(*none*)";
116c20d2 4864 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
252b5132
RH		 4865 fprintf (file, " %s\t%s", section_name, symbol->name);
4866 break;
4867 }
4868 }
4869}
4870
b34976b6 4871static bfd_boolean
116c20d2
NC		 4872som_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
4873 const char *name)
252b5132 4874{
116c20d2 4875 return name[0] == 'L' && name[1] == '$';
252b5132
RH		 4876}
4877
4878/* Count or process variable-length SOM fixup records.
4879
4880 To avoid code duplication we use this code both to compute the number
4881 of relocations requested by a stream, and to internalize the stream.
4882
4883 When computing the number of relocations requested by a stream the
4884 variables rptr, section, and symbols have no meaning.
4885
4886 Return the number of relocations requested by the fixup stream. When
6fa957a9 4887 not just counting
252b5132
RH		 4888
4889 This needs at least two or three more passes to get it cleaned up. */
4890
4891static unsigned int
116c20d2
NC		 4892som_set_reloc_info (unsigned char *fixup,
4893 unsigned int end,
4894 arelent *internal_relocs,
4895 asection *section,
4896 asymbol **symbols,
4897 bfd_boolean just_count)
252b5132
RH		 4898{
4899 unsigned int op, varname, deallocate_contents = 0;
4900 unsigned char *end_fixups = &fixup[end];
4901 const struct fixup_format *fp;
7dca057b 4902 const char *cp;
252b5132
RH		 4903 unsigned char *save_fixup;
4904 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4905 const int *subop;
7eae7d22 4906 arelent *rptr = internal_relocs;
252b5132
RH		 4907 unsigned int offset = 0;
4908
4909#define var(c) variables[(c) - 'A']
4910#define push(v) (*sp++ = (v))
4911#define pop() (*--sp)
4912#define emptystack() (sp == stack)
4913
4914 som_initialize_reloc_queue (reloc_queue);
4915 memset (variables, 0, sizeof (variables));
4916 memset (stack, 0, sizeof (stack));
4917 count = 0;
4918 prev_fixup = 0;
4919 saved_unwind_bits = 0;
4920 sp = stack;
4921
4922 while (fixup < end_fixups)
4923 {
252b5132
RH		 4924 /* Save pointer to the start of this fixup. We'll use
4925 it later to determine if it is necessary to put this fixup
4926 on the queue. */
4927 save_fixup = fixup;
4928
4929 /* Get the fixup code and its associated format. */
4930 op = *fixup++;
4931 fp = &som_fixup_formats[op];
4932
4933 /* Handle a request for a previous fixup. */
4934 if (*fp->format == 'P')
4935 {
4936 /* Get pointer to the beginning of the prev fixup, move
4937 the repeated fixup to the head of the queue. */
4938 fixup = reloc_queue[fp->D].reloc;
4939 som_reloc_queue_fix (reloc_queue, fp->D);
4940 prev_fixup = 1;
4941
4942 /* Get the fixup code and its associated format. */
4943 op = *fixup++;
4944 fp = &som_fixup_formats[op];
4945 }
4946
4947 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4948 if (! just_count
4949 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4950 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4951 {
4952 rptr->address = offset;
4953 rptr->howto = &som_hppa_howto_table[op];
4954 rptr->addend = 0;
4955 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4956 }
4957
4958 /* Set default input length to 0. Get the opcode class index
4959 into D. */
4960 var ('L') = 0;
4961 var ('D') = fp->D;
4962 var ('U') = saved_unwind_bits;
4963
4964 /* Get the opcode format. */
4965 cp = fp->format;
4966
4967 /* Process the format string. Parsing happens in two phases,
6fa957a9 4968 parse RHS, then assign to LHS. Repeat until no more
252b5132
RH		 4969 characters in the format string. */
4970 while (*cp)
4971 {
4972 /* The variable this pass is going to compute a value for. */
4973 varname = *cp++;
4974
4975 /* Start processing RHS. Continue until a NULL or '=' is found. */
4976 do
4977 {
4978 c = *cp++;
4979
4980 /* If this is a variable, push it on the stack. */
3882b010 4981 if (ISUPPER (c))
252b5132
RH		 4982 push (var (c));
4983
4984 /* If this is a lower case letter, then it represents
4985 additional data from the fixup stream to be pushed onto
4986 the stack. */
3882b010 4987 else if (ISLOWER (c))
252b5132
RH		 4988 {
4989 int bits = (c - 'a') * 8;
4990 for (v = 0; c > 'a'; --c)
4991 v = (v << 8) | *fixup++;
4992 if (varname == 'V')
4993 v = sign_extend (v, bits);
4994 push (v);
4995 }
4996
4997 /* A decimal constant. Push it on the stack. */
3882b010 4998 else if (ISDIGIT (c))
252b5132
RH		 4999 {
5000 v = c - '0';
3882b010 5001 while (ISDIGIT (*cp))
252b5132
RH		 5002 v = (v * 10) + (*cp++ - '0');
5003 push (v);
5004 }
5005 else
252b5132
RH		 5006 /* An operator. Pop two two values from the stack and
5007 use them as operands to the given operation. Push
5008 the result of the operation back on the stack. */
5009 switch (c)
5010 {
5011 case '+':
5012 v = pop ();
5013 v += pop ();
5014 push (v);
5015 break;
5016 case '*':
5017 v = pop ();
5018 v *= pop ();
5019 push (v);
5020 break;
5021 case '<':
5022 v = pop ();
5023 v = pop () << v;
5024 push (v);
5025 break;
5026 default:
5027 abort ();
5028 }
5029 }
5030 while (*cp && *cp != '=');
5031
5032 /* Move over the equal operator. */
5033 cp++;
5034
5035 /* Pop the RHS off the stack. */
5036 c = pop ();
5037
5038 /* Perform the assignment. */
5039 var (varname) = c;
5040
5041 /* Handle side effects. and special 'O' stack cases. */
5042 switch (varname)
5043 {
5044 /* Consume some bytes from the input space. */
5045 case 'L':
5046 offset += c;
5047 break;
5048 /* A symbol to use in the relocation. Make a note
5049 of this if we are not just counting. */
5050 case 'S':
5051 if (! just_count)
5052 rptr->sym_ptr_ptr = &symbols[c];
5053 break;
5054 /* Argument relocation bits for a function call. */
5055 case 'R':
5056 if (! just_count)
5057 {
5058 unsigned int tmp = var ('R');
5059 rptr->addend = 0;
5060
5061 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
5062 && R_PCREL_CALL + 10 > op)
5063 || (som_hppa_howto_table[op].type == R_ABS_CALL
5064 && R_ABS_CALL + 10 > op))
5065 {
5066 /* Simple encoding. */
5067 if (tmp > 4)
5068 {
5069 tmp -= 5;
5070 rptr->addend |= 1;
5071 }
5072 if (tmp == 4)
5073 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
5074 else if (tmp == 3)
5075 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
5076 else if (tmp == 2)
5077 rptr->addend |= 1 << 8 | 1 << 6;
5078 else if (tmp == 1)
5079 rptr->addend |= 1 << 8;
5080 }
5081 else
5082 {
5083 unsigned int tmp1, tmp2;
5084
5085 /* First part is easy -- low order two bits are
5086 directly copied, then shifted away. */
5087 rptr->addend = tmp & 0x3;
5088 tmp >>= 2;
5089
5090 /* Diving the result by 10 gives us the second
5091 part. If it is 9, then the first two words
5092 are a double precision paramater, else it is
5093 3 * the first arg bits + the 2nd arg bits. */
5094 tmp1 = tmp / 10;
5095 tmp -= tmp1 * 10;
5096 if (tmp1 == 9)
5097 rptr->addend += (0xe << 6);
5098 else
5099 {
5100 /* Get the two pieces. */
5101 tmp2 = tmp1 / 3;
5102 tmp1 -= tmp2 * 3;
5103 /* Put them in the addend. */
5104 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
5105 }
5106
5107 /* What's left is the third part. It's unpacked
5108 just like the second. */
5109 if (tmp == 9)
5110 rptr->addend += (0xe << 2);
5111 else
5112 {
5113 tmp2 = tmp / 3;
5114 tmp -= tmp2 * 3;
5115 rptr->addend += (tmp2 << 4) + (tmp << 2);
5116 }
5117 }
5118 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
5119 }
5120 break;
5121 /* Handle the linker expression stack. */
5122 case 'O':
5123 switch (op)
5124 {
5125 case R_COMP1:
5126 subop = comp1_opcodes;
5127 break;
5128 case R_COMP2:
5129 subop = comp2_opcodes;
5130 break;
5131 case R_COMP3:
5132 subop = comp3_opcodes;
5133 break;
5134 default:
5135 abort ();
5136 }
5137 while (*subop <= (unsigned char) c)
5138 ++subop;
5139 --subop;
5140 break;
5141 /* The lower 32unwind bits must be persistent. */
5142 case 'U':
5143 saved_unwind_bits = var ('U');
5144 break;
5145
5146 default:
5147 break;
5148 }
5149 }
5150
5151 /* If we used a previous fixup, clean up after it. */
5152 if (prev_fixup)
5153 {
5154 fixup = save_fixup + 1;
5155 prev_fixup = 0;
5156 }
5157 /* Queue it. */
5158 else if (fixup > save_fixup + 1)
5159 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
5160
6fa957a9 5161 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
252b5132
RH		 5162 fixups to BFD. */
5163 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
5164 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
5165 {
5166 /* Done with a single reloction. Loop back to the top. */
5167 if (! just_count)
5168 {
5169 if (som_hppa_howto_table[op].type == R_ENTRY)
5170 rptr->addend = var ('T');
5171 else if (som_hppa_howto_table[op].type == R_EXIT)
5172 rptr->addend = var ('U');
5173 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
5174 || som_hppa_howto_table[op].type == R_ABS_CALL)
5175 ;
5176 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
5177 {
252b5132
RH		 5178 /* Try what was specified in R_DATA_OVERRIDE first
5179 (if anything). Then the hard way using the
5180 section contents. */
5181 rptr->addend = var ('V');
5182
5183 if (rptr->addend == 0 && !section->contents)
5184 {
5185 /* Got to read the damn contents first. We don't
b34976b6 5186 bother saving the contents (yet). Add it one
252b5132 5187 day if the need arises. */
22bfad37 5188 bfd_byte *contents;
eea6121a
AM		 5189 if (!bfd_malloc_and_get_section (section->owner, section,
5190 &contents))
5191 {
5192 if (contents != NULL)
5193 free (contents);
5194 return (unsigned) -1;
5195 }
5196 section->contents = contents;
252b5132 5197 deallocate_contents = 1;
252b5132
RH		 5198 }
5199 else if (rptr->addend == 0)
5200 rptr->addend = bfd_get_32 (section->owner,
5201 (section->contents
5202 + offset - var ('L')));
6fa957a9 5203
252b5132
RH		 5204 }
5205 else
5206 rptr->addend = var ('V');
5207 rptr++;
5208 }
5209 count++;
5210 /* Now that we've handled a "full" relocation, reset
5211 some state. */
5212 memset (variables, 0, sizeof (variables));
5213 memset (stack, 0, sizeof (stack));
5214 }
5215 }
5216 if (deallocate_contents)
5217 free (section->contents);
5218
5219 return count;
5220
5221#undef var
5222#undef push
5223#undef pop
5224#undef emptystack
5225}
5226
6fa957a9 5227/* Read in the relocs (aka fixups in SOM terms) for a section.
252b5132 5228
6fa957a9 5229 som_get_reloc_upper_bound calls this routine with JUST_COUNT
b34976b6 5230 set to TRUE to indicate it only needs a count of the number
252b5132
RH		 5231 of actual relocations. */
5232
b34976b6 5233static bfd_boolean
116c20d2
NC		 5234som_slurp_reloc_table (bfd *abfd,
5235 asection *section,
5236 asymbol **symbols,
5237 bfd_boolean just_count)
252b5132 5238{
a96afa0f 5239 unsigned char *external_relocs;
252b5132
RH		 5240 unsigned int fixup_stream_size;
5241 arelent *internal_relocs;
5242 unsigned int num_relocs;
dc810e39 5243 bfd_size_type amt;
252b5132
RH		 5244
5245 fixup_stream_size = som_section_data (section)->reloc_size;
5246 /* If there were no relocations, then there is nothing to do. */
5247 if (section->reloc_count == 0)
b34976b6 5248 return TRUE;
252b5132 5249
6fa957a9 5250 /* If reloc_count is -1, then the relocation stream has not been
252b5132 5251 parsed. We must do so now to know how many relocations exist. */
dc810e39 5252 if (section->reloc_count == (unsigned) -1)
252b5132 5253 {
dc810e39 5254 amt = fixup_stream_size;
116c20d2
NC		 5255 external_relocs = bfd_malloc (amt);
5256 if (external_relocs == NULL)
b34976b6 5257 return FALSE;
6fa957a9 5258 /* Read in the external forms. */
252b5132
RH		 5259 if (bfd_seek (abfd,
5260 obj_som_reloc_filepos (abfd) + section->rel_filepos,
5261 SEEK_SET)
5262 != 0)
b34976b6 5263 return FALSE;
dc810e39 5264 if (bfd_bread (external_relocs, amt, abfd) != amt)
b34976b6 5265 return FALSE;
252b5132
RH		 5266
5267 /* Let callers know how many relocations found.
5268 also save the relocation stream as we will
5269 need it again. */
5270 section->reloc_count = som_set_reloc_info (external_relocs,
5271 fixup_stream_size,
b34976b6 5272 NULL, NULL, NULL, TRUE);
252b5132
RH		 5273
5274 som_section_data (section)->reloc_stream = external_relocs;
5275 }
5276
5277 /* If the caller only wanted a count, then return now. */
5278 if (just_count)
b34976b6 5279 return TRUE;
252b5132
RH		 5280
5281 num_relocs = section->reloc_count;
5282 external_relocs = som_section_data (section)->reloc_stream;
5283 /* Return saved information about the relocations if it is available. */
116c20d2 5284 if (section->relocation != NULL)
b34976b6 5285 return TRUE;
252b5132 5286
dc810e39
AM		 5287 amt = num_relocs;
5288 amt *= sizeof (arelent);
116c20d2
NC		 5289 internal_relocs = bfd_zalloc (abfd, (amt));
5290 if (internal_relocs == NULL)
b34976b6 5291 return FALSE;
252b5132
RH		 5292
5293 /* Process and internalize the relocations. */
5294 som_set_reloc_info (external_relocs, fixup_stream_size,
b34976b6 5295 internal_relocs, section, symbols, FALSE);
252b5132
RH		 5296
5297 /* We're done with the external relocations. Free them. */
5298 free (external_relocs);
5299 som_section_data (section)->reloc_stream = NULL;
5300
5301 /* Save our results and return success. */
5302 section->relocation = internal_relocs;
b34976b6 5303 return TRUE;
252b5132
RH		 5304}
5305
5306/* Return the number of bytes required to store the relocation
6fa957a9 5307 information associated with the given section. */
252b5132
RH		 5308
5309static long
116c20d2 5310som_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
252b5132
RH		 5311{
5312 /* If section has relocations, then read in the relocation stream
5313 and parse it to determine how many relocations exist. */
5314 if (asect->flags & SEC_RELOC)
5315 {
b34976b6 5316 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
252b5132
RH		 5317 return -1;
5318 return (asect->reloc_count + 1) * sizeof (arelent *);
5319 }
06dcabb0
NC		 5320
5321 /* There are no relocations. Return enough space to hold the
5322 NULL pointer which will be installed if som_canonicalize_reloc
5323 is called. */
5324 return sizeof (arelent *);
252b5132
RH		 5325}
5326
5327/* Convert relocations from SOM (external) form into BFD internal
5328 form. Return the number of relocations. */
5329
5330static long
116c20d2
NC		 5331som_canonicalize_reloc (bfd *abfd,
5332 sec_ptr section,
5333 arelent **relptr,
5334 asymbol **symbols)
252b5132
RH		 5335{
5336 arelent *tblptr;
5337 int count;
5338
b34976b6 5339 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
252b5132
RH		 5340 return -1;
5341
5342 count = section->reloc_count;
5343 tblptr = section->relocation;
5344
5345 while (count--)
5346 *relptr++ = tblptr++;
5347
116c20d2 5348 *relptr = NULL;
252b5132
RH		 5349 return section->reloc_count;
5350}
5351
6d00b590 5352extern const bfd_target hppa_som_vec;
252b5132
RH		 5353
5354/* A hook to set up object file dependent section information. */
5355
b34976b6 5356static bfd_boolean
116c20d2 5357som_new_section_hook (bfd *abfd, asection *newsect)
252b5132 5358{
252b5132 5359 if (!newsect->used_by_bfd)
f592407e
AM		 5360 {
5361 bfd_size_type amt = sizeof (struct som_section_data_struct);
5362
5363 newsect->used_by_bfd = bfd_zalloc (abfd, amt);
5364 if (!newsect->used_by_bfd)
5365 return FALSE;
5366 }
252b5132
RH		 5367 newsect->alignment_power = 3;
5368
7eae7d22 5369 /* We allow more than three sections internally. */
f592407e 5370 return _bfd_generic_new_section_hook (abfd, newsect);
252b5132
RH		 5371}
5372
5373/* Copy any private info we understand from the input symbol
5374 to the output symbol. */
5375
b34976b6 5376static bfd_boolean
116c20d2
NC		 5377som_bfd_copy_private_symbol_data (bfd *ibfd,
5378 asymbol *isymbol,
5379 bfd *obfd,
5380 asymbol *osymbol)
252b5132
RH		 5381{
5382 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5383 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5384
5385 /* One day we may try to grok other private data. */
5386 if (ibfd->xvec->flavour != bfd_target_som_flavour
5387 || obfd->xvec->flavour != bfd_target_som_flavour)
b34976b6 5388 return FALSE;
252b5132
RH		 5389
5390 /* The only private information we need to copy is the argument relocation
5391 bits. */
5392 output_symbol->tc_data.ap.hppa_arg_reloc =
5393 input_symbol->tc_data.ap.hppa_arg_reloc;
5394
b34976b6 5395 return TRUE;
252b5132
RH		 5396}
5397
5398/* Copy any private info we understand from the input section
5399 to the output section. */
7eae7d22 5400
b34976b6 5401static bfd_boolean
116c20d2
NC		 5402som_bfd_copy_private_section_data (bfd *ibfd,
5403 asection *isection,
5404 bfd *obfd,
5405 asection *osection)
252b5132 5406{
dc810e39
AM		 5407 bfd_size_type amt;
5408
252b5132
RH		 5409 /* One day we may try to grok other private data. */
5410 if (ibfd->xvec->flavour != bfd_target_som_flavour
5411 || obfd->xvec->flavour != bfd_target_som_flavour
5412 || (!som_is_space (isection) && !som_is_subspace (isection)))
b34976b6 5413 return TRUE;
252b5132 5414
dc810e39 5415 amt = sizeof (struct som_copyable_section_data_struct);
116c20d2 5416 som_section_data (osection)->copy_data = bfd_zalloc (obfd, amt);
252b5132 5417 if (som_section_data (osection)->copy_data == NULL)
b34976b6 5418 return FALSE;
252b5132
RH		 5419
5420 memcpy (som_section_data (osection)->copy_data,
5421 som_section_data (isection)->copy_data,
5422 sizeof (struct som_copyable_section_data_struct));
5423
5424 /* Reparent if necessary. */
5425 if (som_section_data (osection)->copy_data->container)
5426 som_section_data (osection)->copy_data->container =
5427 som_section_data (osection)->copy_data->container->output_section;
5428
b34976b6 5429 return TRUE;
252b5132
RH		 5430}
5431
5432/* Copy any private info we understand from the input bfd
5433 to the output bfd. */
5434
b34976b6 5435static bfd_boolean
116c20d2 5436som_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH		 5437{
5438 /* One day we may try to grok other private data. */
5439 if (ibfd->xvec->flavour != bfd_target_som_flavour
5440 || obfd->xvec->flavour != bfd_target_som_flavour)
b34976b6 5441 return TRUE;
252b5132
RH		 5442
5443 /* Allocate some memory to hold the data we need. */
116c20d2 5444 obj_som_exec_data (obfd) = bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
252b5132 5445 if (obj_som_exec_data (obfd) == NULL)
b34976b6 5446 return FALSE;
252b5132
RH		 5447
5448 /* Now copy the data. */
5449 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5450 sizeof (struct som_exec_data));
5451
b34976b6 5452 return TRUE;
252b5132
RH		 5453}
5454
e6dc21b6
MM		 5455/* Display the SOM header. */
5456
5457static bfd_boolean
5458som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
5459{
5460 struct som_exec_auxhdr *exec_header;
e1f000f6 5461 struct som_aux_id* auxhdr;
e6dc21b6
MM		 5462 FILE *f;
5463
5464 f = (FILE *) farg;
5465
5466 exec_header = obj_som_exec_hdr (abfd);
5467 if (exec_header)
5468 {
5469 fprintf (f, _("\nExec Auxiliary Header\n"));
5470 fprintf (f, " flags ");
5471 auxhdr = &exec_header->som_auxhdr;
5472 if (auxhdr->mandatory)
5473 fprintf (f, "mandatory ");
5474 if (auxhdr->copy)
5475 fprintf (f, "copy ");
5476 if (auxhdr->append)
5477 fprintf (f, "append ");
5478 if (auxhdr->ignore)
5479 fprintf (f, "ignore ");
5480 fprintf (f, "\n");
5481 fprintf (f, " type %#x\n", auxhdr->type);
5482 fprintf (f, " length %#x\n", auxhdr->length);
0858d3ec
JG		 5483
5484 /* Note that, depending on the HP-UX version, the following fields can be
5485 either ints, or longs. */
5486
5487 fprintf (f, " text size %#lx\n", (long) exec_header->exec_tsize);
5488 fprintf (f, " text memory offset %#lx\n", (long) exec_header->exec_tmem);
5489 fprintf (f, " text file offset %#lx\n", (long) exec_header->exec_tfile);
5490 fprintf (f, " data size %#lx\n", (long) exec_header->exec_dsize);
5491 fprintf (f, " data memory offset %#lx\n", (long) exec_header->exec_dmem);
5492 fprintf (f, " data file offset %#lx\n", (long) exec_header->exec_dfile);
5493 fprintf (f, " bss size %#lx\n", (long) exec_header->exec_bsize);
5494 fprintf (f, " entry point %#lx\n", (long) exec_header->exec_entry);
5495 fprintf (f, " loader flags %#lx\n", (long) exec_header->exec_flags);
5496 fprintf (f, " bss initializer %#lx\n", (long) exec_header->exec_bfill);
e6dc21b6
MM		 5497 }
5498
5499 return TRUE;
5500}
5501
252b5132
RH		 5502/* Set backend info for sections which can not be described
5503 in the BFD data structures. */
5504
b34976b6 5505bfd_boolean
116c20d2
NC		 5506bfd_som_set_section_attributes (asection *section,
5507 int defined,
5508 int private,
5509 unsigned int sort_key,
5510 int spnum)
252b5132
RH		 5511{
5512 /* Allocate memory to hold the magic information. */
5513 if (som_section_data (section)->copy_data == NULL)
5514 {
dc810e39 5515 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
116c20d2
NC		 5516
5517 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
252b5132 5518 if (som_section_data (section)->copy_data == NULL)
b34976b6 5519 return FALSE;
252b5132
RH		 5520 }
5521 som_section_data (section)->copy_data->sort_key = sort_key;
5522 som_section_data (section)->copy_data->is_defined = defined;
5523 som_section_data (section)->copy_data->is_private = private;
5524 som_section_data (section)->copy_data->container = section;
5525 som_section_data (section)->copy_data->space_number = spnum;
b34976b6 5526 return TRUE;
252b5132
RH		 5527}
5528
6fa957a9 5529/* Set backend info for subsections which can not be described
252b5132
RH		 5530 in the BFD data structures. */
5531
b34976b6 5532bfd_boolean
116c20d2
NC		 5533bfd_som_set_subsection_attributes (asection *section,
5534 asection *container,
f664f618 5535 int access_ctr,
116c20d2
NC		 5536 unsigned int sort_key,
5537 int quadrant,
5538 int comdat,
5539 int common,
5540 int dup_common)
252b5132
RH		 5541{
5542 /* Allocate memory to hold the magic information. */
5543 if (som_section_data (section)->copy_data == NULL)
5544 {
dc810e39 5545 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
116c20d2
NC		 5546
5547 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
252b5132 5548 if (som_section_data (section)->copy_data == NULL)
b34976b6 5549 return FALSE;
252b5132
RH		 5550 }
5551 som_section_data (section)->copy_data->sort_key = sort_key;
f664f618 5552 som_section_data (section)->copy_data->access_control_bits = access_ctr;
252b5132
RH		 5553 som_section_data (section)->copy_data->quadrant = quadrant;
5554 som_section_data (section)->copy_data->container = container;
351e2b5a
DA		 5555 som_section_data (section)->copy_data->is_comdat = comdat;
5556 som_section_data (section)->copy_data->is_common = common;
5557 som_section_data (section)->copy_data->dup_common = dup_common;
b34976b6 5558 return TRUE;
252b5132
RH		 5559}
5560
5561/* Set the full SOM symbol type. SOM needs far more symbol information
5562 than any other object file format I'm aware of. It is mandatory
5563 to be able to know if a symbol is an entry point, millicode, data,
5564 code, absolute, storage request, or procedure label. If you get
5565 the symbol type wrong your program will not link. */
5566
5567void
116c20d2 5568bfd_som_set_symbol_type (asymbol *symbol, unsigned int type)
252b5132
RH		 5569{
5570 som_symbol_data (symbol)->som_type = type;
5571}
5572
5573/* Attach an auxiliary header to the BFD backend so that it may be
5574 written into the object file. */
7eae7d22 5575
b34976b6 5576bfd_boolean
116c20d2 5577bfd_som_attach_aux_hdr (bfd *abfd, int type, char *string)
252b5132 5578{
dc810e39
AM		 5579 bfd_size_type amt;
5580
252b5132
RH		 5581 if (type == VERSION_AUX_ID)
5582 {
dc810e39 5583 size_t len = strlen (string);
252b5132
RH		 5584 int pad = 0;
5585
5586 if (len % 4)
5587 pad = (4 - (len % 4));
e1f000f6 5588 amt = sizeof (struct som_string_auxhdr) + len + pad;
116c20d2 5589 obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
252b5132 5590 if (!obj_som_version_hdr (abfd))
b34976b6 5591 return FALSE;
252b5132 5592 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
e1f000f6 5593 obj_som_version_hdr (abfd)->header_id.length = 4 + len + pad;
252b5132 5594 obj_som_version_hdr (abfd)->string_length = len;
e1f000f6
TG		 5595 memcpy (obj_som_version_hdr (abfd)->string, string, len);
5596 memset (obj_som_version_hdr (abfd)->string + len, 0, pad);
252b5132
RH		 5597 }
5598 else if (type == COPYRIGHT_AUX_ID)
5599 {
5600 int len = strlen (string);
5601 int pad = 0;
5602
5603 if (len % 4)
5604 pad = (4 - (len % 4));
e1f000f6 5605 amt = sizeof (struct som_string_auxhdr) + len + pad;
116c20d2 5606 obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
252b5132 5607 if (!obj_som_copyright_hdr (abfd))
b34976b6 5608 return FALSE;
252b5132 5609 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
e1f000f6 5610 obj_som_copyright_hdr (abfd)->header_id.length = len + pad + 4;
252b5132 5611 obj_som_copyright_hdr (abfd)->string_length = len;
e1f000f6
TG		 5612 memcpy (obj_som_copyright_hdr (abfd)->string, string, len);
5613 memset (obj_som_copyright_hdr (abfd)->string + len, 0, pad);
252b5132 5614 }
b34976b6 5615 return TRUE;
252b5132
RH		 5616}
5617
19852a2a 5618/* Attach a compilation unit header to the BFD backend so that it may be
252b5132
RH		 5619 written into the object file. */
5620
b34976b6 5621bfd_boolean
116c20d2
NC		 5622bfd_som_attach_compilation_unit (bfd *abfd,
5623 const char *name,
5624 const char *language_name,
5625 const char *product_id,
5626 const char *version_id)
252b5132 5627{
e1f000f6 5628 struct som_compilation_unit *n;
116c20d2 5629
e1f000f6
TG		 5630 n = (struct som_compilation_unit *) bfd_zalloc
5631 (abfd, (bfd_size_type) sizeof (*n));
252b5132 5632 if (n == NULL)
b34976b6 5633 return FALSE;
252b5132
RH		 5634
5635#define STRDUP(f) \
5636 if (f != NULL) \
5637 { \
e1f000f6
TG		 5638 n->f.name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5639 if (n->f.name == NULL) \
b34976b6 5640 return FALSE; \
e1f000f6 5641 strcpy (n->f.name, f); \
252b5132
RH		 5642 }
5643
5644 STRDUP (name);
5645 STRDUP (language_name);
5646 STRDUP (product_id);
5647 STRDUP (version_id);
5648
5649#undef STRDUP
5650
5651 obj_som_compilation_unit (abfd) = n;
5652
b34976b6 5653 return TRUE;
252b5132
RH		 5654}
5655
b34976b6 5656static bfd_boolean
116c20d2
NC		 5657som_get_section_contents (bfd *abfd,
5658 sec_ptr section,
6a808a40 5659 void *location,
116c20d2
NC		 5660 file_ptr offset,
5661 bfd_size_type count)
252b5132
RH		 5662{
5663 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
b34976b6 5664 return TRUE;
eea6121a 5665 if ((bfd_size_type) (offset+count) > section->size
dc810e39
AM		 5666 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5667 || bfd_bread (location, count, abfd) != count)
34f304a7 5668 return FALSE; /* On error. */
b34976b6 5669 return TRUE;
252b5132
RH		 5670}
5671
b34976b6 5672static bfd_boolean
116c20d2
NC		 5673som_set_section_contents (bfd *abfd,
5674 sec_ptr section,
6a808a40 5675 const void *location,
116c20d2
NC		 5676 file_ptr offset,
5677 bfd_size_type count)
252b5132 5678{
82e51918 5679 if (! abfd->output_has_begun)
252b5132
RH		 5680 {
5681 /* Set up fixed parts of the file, space, and subspace headers.
5682 Notify the world that output has begun. */
5683 som_prep_headers (abfd);
b34976b6 5684 abfd->output_has_begun = TRUE;
252b5132
RH		 5685 /* Start writing the object file. This include all the string
5686 tables, fixup streams, and other portions of the object file. */
5687 som_begin_writing (abfd);
5688 }
5689
5690 /* Only write subspaces which have "real" contents (eg. the contents
5691 are not generated at run time by the OS). */
5692 if (!som_is_subspace (section)
5693 || ((section->flags & SEC_HAS_CONTENTS) == 0))
b34976b6 5694 return TRUE;
252b5132
RH		 5695
5696 /* Seek to the proper offset within the object file and write the
5697 data. */
6fa957a9 5698 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
dc810e39 5699 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
b34976b6 5700 return FALSE;
252b5132 5701
5198ba8b 5702 if (bfd_bwrite (location, count, abfd) != count)
b34976b6
AM		 5703 return FALSE;
5704 return TRUE;
252b5132
RH		 5705}
5706
b34976b6 5707static bfd_boolean
116c20d2
NC		 5708som_set_arch_mach (bfd *abfd,
5709 enum bfd_architecture arch,
5710 unsigned long machine)
252b5132 5711{
7eae7d22 5712 /* Allow any architecture to be supported by the SOM backend. */
252b5132
RH		 5713 return bfd_default_set_arch_mach (abfd, arch, machine);
5714}
5715
b34976b6 5716static bfd_boolean
6119d252
NC		 5717som_find_nearest_line (bfd *abfd,
5718 asection *section,
5719 asymbol **symbols,
5720 bfd_vma offset,
5721 const char **filename_ptr,
5722 const char **functionname_ptr,
5723 unsigned int *line_ptr)
252b5132 5724{
6119d252
NC		 5725 bfd_boolean found;
5726 asymbol *func;
5727 bfd_vma low_func;
5728 asymbol **p;
5729
5730 if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
5731 & found, filename_ptr,
5732 functionname_ptr, line_ptr,
5733 & somdata (abfd).line_info))
5734 return FALSE;
5735
5736 if (found)
5737 return TRUE;
5738
5739 if (symbols == NULL)
5740 return FALSE;
5741
5742 /* Fallback: find function name from symbols table. */
5743 func = NULL;
5744 low_func = 0;
5745
5746 for (p = symbols; *p != NULL; p++)
68ffbac6 5747 {
6119d252 5748 som_symbol_type *q = (som_symbol_type *) *p;
68ffbac6 5749
6119d252
NC		 5750 if (q->som_type == SYMBOL_TYPE_ENTRY
5751 && q->symbol.section == section
5752 && q->symbol.value >= low_func
5753 && q->symbol.value <= offset)
5754 {
5755 func = (asymbol *) q;
5756 low_func = q->symbol.value;
5757 }
5758 }
5759
5760 if (func == NULL)
5761 return FALSE;
5762
5763 *filename_ptr = NULL;
5764 *functionname_ptr = bfd_asymbol_name (func);
5765 *line_ptr = 0;
5766
5767 return TRUE;
252b5132
RH		 5768}
5769
5770static int
116c20d2 5771som_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
a6b96beb 5772 struct bfd_link_info *info ATTRIBUTE_UNUSED)
252b5132
RH		 5773{
5774 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
252b5132 5775 abort ();
b34976b6 5776 return 0;
252b5132
RH		 5777}
5778
5779/* Return the single-character symbol type corresponding to
5780 SOM section S, or '?' for an unknown SOM section. */
5781
5782static char
116c20d2 5783som_section_type (const char *s)
252b5132
RH		 5784{
5785 const struct section_to_type *t;
5786
5787 for (t = &stt[0]; t->section; t++)
5788 if (!strcmp (s, t->section))
5789 return t->type;
5790 return '?';
5791}
5792
5793static int
116c20d2 5794som_decode_symclass (asymbol *symbol)
252b5132
RH		 5795{
5796 char c;
5797
5798 if (bfd_is_com_section (symbol->section))
5799 return 'C';
5800 if (bfd_is_und_section (symbol->section))
f29ba312
DA		 5801 {
5802 if (symbol->flags & BSF_WEAK)
5803 {
5804 /* If weak, determine if it's specifically an object
5805 or non-object weak. */
5806 if (symbol->flags & BSF_OBJECT)
5807 return 'v';
5808 else
5809 return 'w';
5810 }
5811 else
5812 return 'U';
5813 }
252b5132
RH		 5814 if (bfd_is_ind_section (symbol->section))
5815 return 'I';
10febd84 5816 if (symbol->flags & BSF_WEAK)
f29ba312
DA		 5817 {
5818 /* If weak, determine if it's specifically an object
5819 or non-object weak. */
5820 if (symbol->flags & BSF_OBJECT)
5821 return 'V';
5822 else
5823 return 'W';
5824 }
7eae7d22 5825 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
252b5132
RH		 5826 return '?';
5827
5828 if (bfd_is_abs_section (symbol->section)
5829 || (som_symbol_data (symbol) != NULL
5830 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5831 c = 'a';
5832 else if (symbol->section)
5833 c = som_section_type (symbol->section->name);
5834 else
5835 return '?';
5836 if (symbol->flags & BSF_GLOBAL)
3882b010 5837 c = TOUPPER (c);
252b5132
RH		 5838 return c;
5839}
5840
5841/* Return information about SOM symbol SYMBOL in RET. */
5842
5843static void
116c20d2
NC		 5844som_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
5845 asymbol *symbol,
5846 symbol_info *ret)
252b5132
RH		 5847{
5848 ret->type = som_decode_symclass (symbol);
5849 if (ret->type != 'U')
7eae7d22 5850 ret->value = symbol->value + symbol->section->vma;
252b5132
RH		 5851 else
5852 ret->value = 0;
5853 ret->name = symbol->name;
5854}
5855
5856/* Count the number of symbols in the archive symbol table. Necessary
5857 so that we can allocate space for all the carsyms at once. */
5858
b34976b6 5859static bfd_boolean
116c20d2 5860som_bfd_count_ar_symbols (bfd *abfd,
e1f000f6 5861 struct som_lst_header *lst_header,
116c20d2 5862 symindex *count)
252b5132
RH		 5863{
5864 unsigned int i;
e1f000f6 5865 unsigned char *hash_table;
dc810e39 5866 bfd_size_type amt;
e1f000f6 5867 file_ptr lst_filepos;
252b5132 5868
e1f000f6
TG		 5869 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5870
5871 amt = lst_header->hash_size * 4;
116c20d2 5872 hash_table = bfd_malloc (amt);
e1f000f6 5873 if (hash_table == NULL && amt != 0)
252b5132
RH		 5874 goto error_return;
5875
5876 /* Don't forget to initialize the counter! */
5877 *count = 0;
5878
5879 /* Read in the hash table. The has table is an array of 32bit file offsets
5880 which point to the hash chains. */
116c20d2 5881 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
252b5132
RH		 5882 goto error_return;
5883
5884 /* Walk each chain counting the number of symbols found on that particular
5885 chain. */
5886 for (i = 0; i < lst_header->hash_size; i++)
5887 {
e1f000f6
TG		 5888 struct som_external_lst_symbol_record ext_lst_symbol;
5889 unsigned int hash_val = bfd_getb32 (hash_table + 4 * i);
252b5132
RH		 5890
5891 /* An empty chain has zero as it's file offset. */
e1f000f6 5892 if (hash_val == 0)
252b5132
RH		 5893 continue;
5894
5895 /* Seek to the first symbol in this hash chain. */
e1f000f6 5896 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
252b5132
RH		 5897 goto error_return;
5898
5899 /* Read in this symbol and update the counter. */
e1f000f6
TG		 5900 amt = sizeof (ext_lst_symbol);
5901 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
252b5132
RH		 5902 goto error_return;
5903
5904 (*count)++;
5905
5906 /* Now iterate through the rest of the symbols on this chain. */
e1f000f6 5907 while (1)
252b5132 5908 {
e1f000f6
TG		 5909 unsigned int next_entry = bfd_getb32 (ext_lst_symbol.next_entry);
5910
5911 if (next_entry == 0)
5912 break;
252b5132
RH		 5913
5914 /* Seek to the next symbol. */
e1f000f6 5915 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
252b5132
RH		 5916 goto error_return;
5917
5918 /* Read the symbol in and update the counter. */
e1f000f6
TG		 5919 amt = sizeof (ext_lst_symbol);
5920 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
252b5132
RH		 5921 goto error_return;
5922
5923 (*count)++;
5924 }
5925 }
5926 if (hash_table != NULL)
5927 free (hash_table);
b34976b6 5928 return TRUE;
252b5132
RH		 5929
5930 error_return:
5931 if (hash_table != NULL)
5932 free (hash_table);
b34976b6 5933 return FALSE;
252b5132
RH		 5934}
5935
5936/* Fill in the canonical archive symbols (SYMS) from the archive described
5937 by ABFD and LST_HEADER. */
5938
b34976b6 5939static bfd_boolean
116c20d2 5940som_bfd_fill_in_ar_symbols (bfd *abfd,
e1f000f6 5941 struct som_lst_header *lst_header,
116c20d2 5942 carsym **syms)
252b5132 5943{
e1f000f6 5944 unsigned int i;
252b5132 5945 carsym *set = syms[0];
e1f000f6
TG		 5946 unsigned char *hash_table;
5947 struct som_external_som_entry *som_dict = NULL;
dc810e39 5948 bfd_size_type amt;
e1f000f6
TG		 5949 file_ptr lst_filepos;
5950 unsigned int string_loc;
252b5132 5951
e1f000f6
TG		 5952 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5953 amt = lst_header->hash_size * 4;
116c20d2 5954 hash_table = bfd_malloc (amt);
e1f000f6 5955 if (hash_table == NULL && amt != 0)
252b5132
RH		 5956 goto error_return;
5957
252b5132
RH		 5958 /* Read in the hash table. The has table is an array of 32bit file offsets
5959 which point to the hash chains. */
116c20d2 5960 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
252b5132
RH		 5961 goto error_return;
5962
5963 /* Seek to and read in the SOM dictionary. We will need this to fill
5964 in the carsym's filepos field. */
dc810e39
AM		 5965 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5966 goto error_return;
5967
e1f000f6 5968 amt = lst_header->module_count * sizeof (struct som_external_som_entry);
116c20d2 5969 som_dict = bfd_malloc (amt);
e1f000f6 5970 if (som_dict == NULL && amt != 0)
252b5132
RH		 5971 goto error_return;
5972
116c20d2 5973 if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
252b5132
RH		 5974 goto error_return;
5975
e1f000f6
TG		 5976 string_loc = lst_header->string_loc;
5977
252b5132
RH		 5978 /* Walk each chain filling in the carsyms as we go along. */
5979 for (i = 0; i < lst_header->hash_size; i++)
5980 {
e1f000f6
TG		 5981 struct som_external_lst_symbol_record lst_symbol;
5982 unsigned int hash_val;
5983 unsigned int len;
5984 unsigned char ext_len[4];
252b5132
RH		 5985
5986 /* An empty chain has zero as it's file offset. */
e1f000f6
TG		 5987 hash_val = bfd_getb32 (hash_table + 4 * i);
5988 if (hash_val == 0)
252b5132
RH		 5989 continue;
5990
5991 /* Seek to and read the first symbol on the chain. */
e1f000f6 5992 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
252b5132
RH		 5993 goto error_return;
5994
dc810e39 5995 amt = sizeof (lst_symbol);
116c20d2 5996 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
252b5132
RH		 5997 goto error_return;
5998
5999 /* Get the name of the symbol, first get the length which is stored
6000 as a 32bit integer just before the symbol.
6001
6002 One might ask why we don't just read in the entire string table
6003 and index into it. Well, according to the SOM ABI the string
6004 index can point *anywhere* in the archive to save space, so just
6005 using the string table would not be safe. */
e1f000f6
TG		 6006 if (bfd_seek (abfd, (lst_filepos + string_loc
6007 + bfd_getb32 (lst_symbol.name) - 4), SEEK_SET) != 0)
252b5132
RH		 6008 goto error_return;
6009
e1f000f6 6010 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
252b5132 6011 goto error_return;
e1f000f6 6012 len = bfd_getb32 (ext_len);
252b5132
RH		 6013
6014 /* Allocate space for the name and null terminate it too. */
dc810e39 6015 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
252b5132
RH		 6016 if (!set->name)
6017 goto error_return;
dc810e39 6018 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
252b5132
RH		 6019 goto error_return;
6020
6021 set->name[len] = 0;
6022
6023 /* Fill in the file offset. Note that the "location" field points
6024 to the SOM itself, not the ar_hdr in front of it. */
e1f000f6
TG		 6025 set->file_offset =
6026 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6027 - sizeof (struct ar_hdr);
252b5132
RH		 6028
6029 /* Go to the next symbol. */
6030 set++;
6031
6032 /* Iterate through the rest of the chain. */
e1f000f6 6033 while (1)
252b5132 6034 {
e1f000f6
TG		 6035 unsigned int next_entry = bfd_getb32 (lst_symbol.next_entry);
6036
6037 if (next_entry == 0)
6038 break;
6039
252b5132 6040 /* Seek to the next symbol and read it in. */
e1f000f6 6041 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
252b5132
RH		 6042 goto error_return;
6043
dc810e39 6044 amt = sizeof (lst_symbol);
116c20d2 6045 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
252b5132
RH		 6046 goto error_return;
6047
6048 /* Seek to the name length & string and read them in. */
e1f000f6
TG		 6049 if (bfd_seek (abfd, lst_filepos + string_loc
6050 + bfd_getb32 (lst_symbol.name) - 4, SEEK_SET) != 0)
252b5132
RH		 6051 goto error_return;
6052
e1f000f6 6053 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
252b5132 6054 goto error_return;
e1f000f6 6055 len = bfd_getb32 (ext_len);
252b5132
RH		 6056
6057 /* Allocate space for the name and null terminate it too. */
dc810e39 6058 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
252b5132
RH		 6059 if (!set->name)
6060 goto error_return;
6061
dc810e39 6062 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
252b5132
RH		 6063 goto error_return;
6064 set->name[len] = 0;
6065
6066 /* Fill in the file offset. Note that the "location" field points
6067 to the SOM itself, not the ar_hdr in front of it. */
e1f000f6
TG		 6068 set->file_offset =
6069 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6070 - sizeof (struct ar_hdr);
252b5132
RH		 6071
6072 /* Go on to the next symbol. */
6073 set++;
6074 }
6075 }
6fa957a9 6076 /* If we haven't died by now, then we successfully read the entire
252b5132
RH		 6077 archive symbol table. */
6078 if (hash_table != NULL)
6079 free (hash_table);
6080 if (som_dict != NULL)
6081 free (som_dict);
b34976b6 6082 return TRUE;
252b5132
RH		 6083
6084 error_return:
6085 if (hash_table != NULL)
6086 free (hash_table);
6087 if (som_dict != NULL)
6088 free (som_dict);
b34976b6 6089 return FALSE;
252b5132
RH		 6090}
6091
6092/* Read in the LST from the archive. */
7eae7d22 6093
b34976b6 6094static bfd_boolean
116c20d2 6095som_slurp_armap (bfd *abfd)
252b5132 6096{
e1f000f6
TG		 6097 struct som_external_lst_header ext_lst_header;
6098 struct som_lst_header lst_header;
252b5132
RH		 6099 struct ar_hdr ar_header;
6100 unsigned int parsed_size;
6101 struct artdata *ardata = bfd_ardata (abfd);
6102 char nextname[17];
dc810e39 6103 bfd_size_type amt = 16;
116c20d2 6104 int i = bfd_bread ((void *) nextname, amt, abfd);
252b5132
RH		 6105
6106 /* Special cases. */
6107 if (i == 0)
b34976b6 6108 return TRUE;
252b5132 6109 if (i != 16)
b34976b6 6110 return FALSE;
252b5132 6111
dc810e39 6112 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
b34976b6 6113 return FALSE;
252b5132
RH		 6114
6115 /* For archives without .o files there is no symbol table. */
0112cd26 6116 if (! CONST_STRNEQ (nextname, "/ "))
252b5132 6117 {
b34976b6
AM		 6118 bfd_has_map (abfd) = FALSE;
6119 return TRUE;
252b5132
RH		 6120 }
6121
6122 /* Read in and sanity check the archive header. */
dc810e39 6123 amt = sizeof (struct ar_hdr);
116c20d2 6124 if (bfd_bread ((void *) &ar_header, amt, abfd) != amt)
b34976b6 6125 return FALSE;
252b5132
RH		 6126
6127 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
6128 {
6129 bfd_set_error (bfd_error_malformed_archive);
b34976b6 6130 return FALSE;
252b5132
RH		 6131 }
6132
6133 /* How big is the archive symbol table entry? */
6134 errno = 0;
6135 parsed_size = strtol (ar_header.ar_size, NULL, 10);
6136 if (errno != 0)
6137 {
6138 bfd_set_error (bfd_error_malformed_archive);
b34976b6 6139 return FALSE;
252b5132
RH		 6140 }
6141
6142 /* Save off the file offset of the first real user data. */
6143 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
6144
6145 /* Read in the library symbol table. We'll make heavy use of this
6146 in just a minute. */
e1f000f6
TG		 6147 amt = sizeof (struct som_external_lst_header);
6148 if (bfd_bread ((void *) &ext_lst_header, amt, abfd) != amt)
b34976b6 6149 return FALSE;
252b5132 6150
e1f000f6
TG		 6151 som_swap_lst_header_in (&ext_lst_header, &lst_header);
6152
252b5132
RH		 6153 /* Sanity check. */
6154 if (lst_header.a_magic != LIBMAGIC)
6155 {
6156 bfd_set_error (bfd_error_malformed_archive);
b34976b6 6157 return FALSE;
252b5132
RH		 6158 }
6159
6160 /* Count the number of symbols in the library symbol table. */
82e51918 6161 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
b34976b6 6162 return FALSE;
252b5132
RH		 6163
6164 /* Get back to the start of the library symbol table. */
dc810e39 6165 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
e1f000f6
TG		 6166 + sizeof (struct som_external_lst_header)),
6167 SEEK_SET) != 0)
b34976b6 6168 return FALSE;
252b5132 6169
7dee875e 6170 /* Initialize the cache and allocate space for the library symbols. */
252b5132 6171 ardata->cache = 0;
dc810e39
AM		 6172 amt = ardata->symdef_count;
6173 amt *= sizeof (carsym);
116c20d2 6174 ardata->symdefs = bfd_alloc (abfd, amt);
252b5132 6175 if (!ardata->symdefs)
b34976b6 6176 return FALSE;
252b5132
RH		 6177
6178 /* Now fill in the canonical archive symbols. */
82e51918 6179 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
b34976b6 6180 return FALSE;
252b5132
RH		 6181
6182 /* Seek back to the "first" file in the archive. Note the "first"
6183 file may be the extended name table. */
dc810e39 6184 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
b34976b6 6185 return FALSE;
252b5132
RH		 6186
6187 /* Notify the generic archive code that we have a symbol map. */
b34976b6
AM		 6188 bfd_has_map (abfd) = TRUE;
6189 return TRUE;
252b5132
RH		 6190}
6191
6192/* Begin preparing to write a SOM library symbol table.
6193
6194 As part of the prep work we need to determine the number of symbols
6195 and the size of the associated string section. */
6196
b34976b6 6197static bfd_boolean
116c20d2
NC		 6198som_bfd_prep_for_ar_write (bfd *abfd,
6199 unsigned int *num_syms,
6200 unsigned int *stringsize)
252b5132
RH		 6201{
6202 bfd *curr_bfd = abfd->archive_head;
6203
6204 /* Some initialization. */
6205 *num_syms = 0;
6206 *stringsize = 0;
6207
6208 /* Iterate over each BFD within this archive. */
6209 while (curr_bfd != NULL)
6210 {
6211 unsigned int curr_count, i;
6212 som_symbol_type *sym;
6213
6214 /* Don't bother for non-SOM objects. */
6215 if (curr_bfd->format != bfd_object
6216 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6217 {
cc481421 6218 curr_bfd = curr_bfd->archive_next;
252b5132
RH		 6219 continue;
6220 }
6221
6222 /* Make sure the symbol table has been read, then snag a pointer
6223 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6224 but doing so avoids allocating lots of extra memory. */
82e51918 6225 if (! som_slurp_symbol_table (curr_bfd))
b34976b6 6226 return FALSE;
252b5132
RH		 6227
6228 sym = obj_som_symtab (curr_bfd);
6229 curr_count = bfd_get_symcount (curr_bfd);
6230
6231 /* Examine each symbol to determine if it belongs in the
6232 library symbol table. */
6233 for (i = 0; i < curr_count; i++, sym++)
6234 {
6235 struct som_misc_symbol_info info;
6236
6237 /* Derive SOM information from the BFD symbol. */
6238 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6239
6240 /* Should we include this symbol? */
6241 if (info.symbol_type == ST_NULL
6242 || info.symbol_type == ST_SYM_EXT
6243 || info.symbol_type == ST_ARG_EXT)
6244 continue;
6245
6246 /* Only global symbols and unsatisfied commons. */
6247 if (info.symbol_scope != SS_UNIVERSAL
6248 && info.symbol_type != ST_STORAGE)
6249 continue;
6250
6251 /* Do no include undefined symbols. */
6252 if (bfd_is_und_section (sym->symbol.section))
6253 continue;
6254
6255 /* Bump the various counters, being careful to honor
6256 alignment considerations in the string table. */
6257 (*num_syms)++;
e1f000f6 6258 *stringsize += strlen (sym->symbol.name) + 5;
252b5132
RH		 6259 while (*stringsize % 4)
6260 (*stringsize)++;
6261 }
6262
cc481421 6263 curr_bfd = curr_bfd->archive_next;
252b5132 6264 }
b34976b6 6265 return TRUE;
252b5132
RH		 6266}
6267
6268/* Hash a symbol name based on the hashing algorithm presented in the
6269 SOM ABI. */
7eae7d22 6270
252b5132 6271static unsigned int
116c20d2 6272som_bfd_ar_symbol_hash (asymbol *symbol)
252b5132
RH		 6273{
6274 unsigned int len = strlen (symbol->name);
6275
6276 /* Names with length 1 are special. */
6277 if (len == 1)
6278 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
6279
6280 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
7eae7d22 6281 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
252b5132
RH		 6282}
6283
6284/* Do the bulk of the work required to write the SOM library
6285 symbol table. */
6fa957a9 6286
b34976b6 6287static bfd_boolean
116c20d2
NC		 6288som_bfd_ar_write_symbol_stuff (bfd *abfd,
6289 unsigned int nsyms,
6290 unsigned int string_size,
e1f000f6 6291 struct som_external_lst_header lst,
116c20d2 6292 unsigned elength)
252b5132 6293{
252b5132 6294 char *strings = NULL, *p;
e1f000f6 6295 struct som_external_lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
252b5132 6296 bfd *curr_bfd;
e1f000f6
TG		 6297 unsigned char *hash_table = NULL;
6298 struct som_external_som_entry *som_dict = NULL;
6299 struct som_external_lst_symbol_record **last_hash_entry = NULL;
252b5132 6300 unsigned int curr_som_offset, som_index = 0;
dc810e39 6301 bfd_size_type amt;
e1f000f6
TG		 6302 unsigned int module_count;
6303 unsigned int hash_size;
252b5132 6304
e1f000f6
TG		 6305 hash_size = bfd_getb32 (lst.hash_size);
6306 amt = hash_size * 4;
116c20d2 6307 hash_table = bfd_zmalloc (amt);
e1f000f6 6308 if (hash_table == NULL && hash_size != 0)
252b5132 6309 goto error_return;
dc810e39 6310
e1f000f6
TG		 6311 module_count = bfd_getb32 (lst.module_count);
6312 amt = module_count * sizeof (struct som_external_som_entry);
116c20d2 6313 som_dict = bfd_zmalloc (amt);
e1f000f6 6314 if (som_dict == NULL && module_count != 0)
252b5132
RH		 6315 goto error_return;
6316
e1f000f6 6317 amt = hash_size * sizeof (struct som_external_lst_symbol_record *);
116c20d2 6318 last_hash_entry = bfd_zmalloc (amt);
e1f000f6 6319 if (last_hash_entry == NULL && hash_size != 0)
252b5132
RH		 6320 goto error_return;
6321
252b5132
RH		 6322 /* Symbols have som_index fields, so we have to keep track of the
6323 index of each SOM in the archive.
6324
6325 The SOM dictionary has (among other things) the absolute file
6326 position for the SOM which a particular dictionary entry
6327 describes. We have to compute that information as we iterate
6328 through the SOMs/symbols. */
6329 som_index = 0;
6330
6331 /* We add in the size of the archive header twice as the location
6332 in the SOM dictionary is the actual offset of the SOM, not the
6333 archive header before the SOM. */
e1f000f6 6334 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + bfd_getb32 (lst.file_end);
252b5132
RH		 6335
6336 /* Make room for the archive header and the contents of the
6337 extended string table. Note that elength includes the size
6338 of the archive header for the extended name table! */
6339 if (elength)
6340 curr_som_offset += elength;
6341
6342 /* Make sure we're properly aligned. */
6343 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
6344
6fa957a9 6345 /* FIXME should be done with buffers just like everything else... */
dc810e39 6346 amt = nsyms;
e1f000f6 6347 amt *= sizeof (struct som_external_lst_symbol_record);
dc810e39 6348 lst_syms = bfd_malloc (amt);
252b5132
RH		 6349 if (lst_syms == NULL && nsyms != 0)
6350 goto error_return;
dc810e39 6351 strings = bfd_malloc ((bfd_size_type) string_size);
252b5132
RH		 6352 if (strings == NULL && string_size != 0)
6353 goto error_return;
6354
6355 p = strings;
6356 curr_lst_sym = lst_syms;
6357
6358 curr_bfd = abfd->archive_head;
6359 while (curr_bfd != NULL)
6360 {
6361 unsigned int curr_count, i;
6362 som_symbol_type *sym;
6363
6364 /* Don't bother for non-SOM objects. */
6365 if (curr_bfd->format != bfd_object
6366 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6367 {
cc481421 6368 curr_bfd = curr_bfd->archive_next;
252b5132
RH		 6369 continue;
6370 }
6371
6372 /* Make sure the symbol table has been read, then snag a pointer
6373 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6374 but doing so avoids allocating lots of extra memory. */
82e51918 6375 if (! som_slurp_symbol_table (curr_bfd))
252b5132
RH		 6376 goto error_return;
6377
6378 sym = obj_som_symtab (curr_bfd);
6379 curr_count = bfd_get_symcount (curr_bfd);
6380
6381 for (i = 0; i < curr_count; i++, sym++)
6382 {
6383 struct som_misc_symbol_info info;
e1f000f6
TG		 6384 struct som_external_lst_symbol_record *last;
6385 unsigned int symbol_pos;
6386 unsigned int slen;
6387 unsigned int symbol_key;
6388 unsigned int flags;
252b5132
RH		 6389
6390 /* Derive SOM information from the BFD symbol. */
6391 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6392
6393 /* Should we include this symbol? */
6394 if (info.symbol_type == ST_NULL
6395 || info.symbol_type == ST_SYM_EXT
6396 || info.symbol_type == ST_ARG_EXT)
6397 continue;
6398
6399 /* Only global symbols and unsatisfied commons. */
6400 if (info.symbol_scope != SS_UNIVERSAL
6401 && info.symbol_type != ST_STORAGE)
6402 continue;
6403
6404 /* Do no include undefined symbols. */
6405 if (bfd_is_und_section (sym->symbol.section))
6406 continue;
6407
6408 /* If this is the first symbol from this SOM, then update
6409 the SOM dictionary too. */
e1f000f6 6410 if (bfd_getb32 (som_dict[som_index].location) == 0)
252b5132 6411 {
e1f000f6
TG		 6412 bfd_putb32 (curr_som_offset, som_dict[som_index].location);
6413 bfd_putb32 (arelt_size (curr_bfd), som_dict[som_index].length);
252b5132
RH		 6414 }
6415
e1f000f6
TG		 6416 symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6417
252b5132 6418 /* Fill in the lst symbol record. */
e1f000f6
TG		 6419 flags = 0;
6420 if (info.secondary_def)
6421 flags |= LST_SYMBOL_SECONDARY_DEF;
6422 flags |= info.symbol_type << LST_SYMBOL_SYMBOL_TYPE_SH;
6423 flags |= info.symbol_scope << LST_SYMBOL_SYMBOL_SCOPE_SH;
6424 if (bfd_is_com_section (sym->symbol.section))
6425 flags |= LST_SYMBOL_IS_COMMON;
6426 if (info.dup_common)
6427 flags |= LST_SYMBOL_DUP_COMMON;
6428 flags |= 3 << LST_SYMBOL_XLEAST_SH;
6429 flags |= info.arg_reloc << LST_SYMBOL_ARG_RELOC_SH;
6430 bfd_putb32 (flags, curr_lst_sym->flags);
6431 bfd_putb32 (p - strings + 4, curr_lst_sym->name);
6432 bfd_putb32 (0, curr_lst_sym->qualifier_name);
6433 bfd_putb32 (info.symbol_info, curr_lst_sym->symbol_info);
6434 bfd_putb32 (info.symbol_value | info.priv_level,
6435 curr_lst_sym->symbol_value);
6436 bfd_putb32 (0, curr_lst_sym->symbol_descriptor);
6437 curr_lst_sym->reserved = 0;
6438 bfd_putb32 (som_index, curr_lst_sym->som_index);
6439 bfd_putb32 (symbol_key, curr_lst_sym->symbol_key);
6440 bfd_putb32 (0, curr_lst_sym->next_entry);
252b5132
RH		 6441
6442 /* Insert into the hash table. */
e1f000f6
TG		 6443 symbol_pos =
6444 (curr_lst_sym - lst_syms)
6445 * sizeof (struct som_external_lst_symbol_record)
6446 + hash_size * 4
6447 + module_count * sizeof (struct som_external_som_entry)
6448 + sizeof (struct som_external_lst_header);
6449 last = last_hash_entry[symbol_key % hash_size];
6450 if (last != NULL)
252b5132 6451 {
252b5132
RH		 6452 /* There is already something at the head of this hash chain,
6453 so tack this symbol onto the end of the chain. */
e1f000f6 6454 bfd_putb32 (symbol_pos, last->next_entry);
252b5132
RH		 6455 }
6456 else
116c20d2 6457 /* First entry in this hash chain. */
e1f000f6 6458 bfd_putb32 (symbol_pos, hash_table + 4 * (symbol_key % hash_size));
252b5132
RH		 6459
6460 /* Keep track of the last symbol we added to this chain so we can
6461 easily update its next_entry pointer. */
e1f000f6 6462 last_hash_entry[symbol_key % hash_size] = curr_lst_sym;
252b5132 6463
252b5132 6464 /* Update the string table. */
e1f000f6
TG		 6465 slen = strlen (sym->symbol.name);
6466 bfd_put_32 (abfd, slen, p);
252b5132 6467 p += 4;
e1f000f6
TG		 6468 slen++; /* Nul terminator. */
6469 memcpy (p, sym->symbol.name, slen);
6470 p += slen;
6471 while (slen % 4)
252b5132
RH		 6472 {
6473 bfd_put_8 (abfd, 0, p);
6474 p++;
e1f000f6 6475 slen++;
252b5132 6476 }
e1f000f6 6477 BFD_ASSERT (p <= strings + string_size);
252b5132
RH		 6478
6479 /* Head to the next symbol. */
6480 curr_lst_sym++;
6481 }
6482
6483 /* Keep track of where each SOM will finally reside; then look
6484 at the next BFD. */
6485 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6fa957a9 6486
252b5132
RH		 6487 /* A particular object in the archive may have an odd length; the
6488 linker requires objects begin on an even boundary. So round
6489 up the current offset as necessary. */
dc810e39 6490 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
cc481421 6491 curr_bfd = curr_bfd->archive_next;
252b5132
RH		 6492 som_index++;
6493 }
6494
6495 /* Now scribble out the hash table. */
e1f000f6 6496 amt = hash_size * 4;
116c20d2 6497 if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
252b5132
RH		 6498 goto error_return;
6499
6500 /* Then the SOM dictionary. */
e1f000f6 6501 amt = module_count * sizeof (struct som_external_som_entry);
116c20d2 6502 if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
252b5132
RH		 6503 goto error_return;
6504
6505 /* The library symbols. */
e1f000f6 6506 amt = nsyms * sizeof (struct som_external_lst_symbol_record);
116c20d2 6507 if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
252b5132
RH		 6508 goto error_return;
6509
6510 /* And finally the strings. */
dc810e39 6511 amt = string_size;
116c20d2 6512 if (bfd_bwrite ((void *) strings, amt, abfd) != amt)
252b5132
RH		 6513 goto error_return;
6514
6515 if (hash_table != NULL)
6516 free (hash_table);
6517 if (som_dict != NULL)
6518 free (som_dict);
6519 if (last_hash_entry != NULL)
6520 free (last_hash_entry);
6521 if (lst_syms != NULL)
6522 free (lst_syms);
6523 if (strings != NULL)
6524 free (strings);
b34976b6 6525 return TRUE;
252b5132
RH		 6526
6527 error_return:
6528 if (hash_table != NULL)
6529 free (hash_table);
6530 if (som_dict != NULL)
6531 free (som_dict);
6532 if (last_hash_entry != NULL)
6533 free (last_hash_entry);
6534 if (lst_syms != NULL)
6535 free (lst_syms);
6536 if (strings != NULL)
6537 free (strings);
6538
b34976b6 6539 return FALSE;
252b5132
RH		 6540}
6541
6542/* Write out the LST for the archive.
6543
6544 You'll never believe this is really how armaps are handled in SOM... */
6545
b34976b6 6546static bfd_boolean
116c20d2
NC		 6547som_write_armap (bfd *abfd,
6548 unsigned int elength,
6549 struct orl *map ATTRIBUTE_UNUSED,
6550 unsigned int orl_count ATTRIBUTE_UNUSED,
6551 int stridx ATTRIBUTE_UNUSED)
252b5132
RH		 6552{
6553 bfd *curr_bfd;
6554 struct stat statbuf;
6555 unsigned int i, lst_size, nsyms, stringsize;
6556 struct ar_hdr hdr;
e1f000f6
TG		 6557 struct som_external_lst_header lst;
6558 unsigned char *p;
dc810e39 6559 bfd_size_type amt;
e1f000f6
TG		 6560 unsigned int csum;
6561 unsigned int module_count;
6fa957a9 6562
252b5132
RH		 6563 /* We'll use this for the archive's date and mode later. */
6564 if (stat (abfd->filename, &statbuf) != 0)
6565 {
6566 bfd_set_error (bfd_error_system_call);
b34976b6 6567 return FALSE;
252b5132
RH		 6568 }
6569 /* Fudge factor. */
6570 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6571
6572 /* Account for the lst header first. */
e1f000f6 6573 lst_size = sizeof (struct som_external_lst_header);
252b5132
RH		 6574
6575 /* Start building the LST header. */
6576 /* FIXME: Do we need to examine each element to determine the
6577 largest id number? */
e1f000f6
TG		 6578 bfd_putb16 (CPU_PA_RISC1_0, &lst.system_id);
6579 bfd_putb16 (LIBMAGIC, &lst.a_magic);
6580 bfd_putb32 (VERSION_ID, &lst.version_id);
6581 bfd_putb32 (0, &lst.file_time.secs);
6582 bfd_putb32 (0, &lst.file_time.nanosecs);
252b5132 6583
e1f000f6
TG		 6584 bfd_putb32 (lst_size, &lst.hash_loc);
6585 bfd_putb32 (SOM_LST_HASH_SIZE, &lst.hash_size);
252b5132
RH		 6586
6587 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6588 lst_size += 4 * SOM_LST_HASH_SIZE;
6589
6590 /* We need to count the number of SOMs in this archive. */
6591 curr_bfd = abfd->archive_head;
e1f000f6 6592 module_count = 0;
252b5132
RH		 6593 while (curr_bfd != NULL)
6594 {
6595 /* Only true SOM objects count. */
6596 if (curr_bfd->format == bfd_object
6597 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
e1f000f6 6598 module_count++;
cc481421 6599 curr_bfd = curr_bfd->archive_next;
252b5132 6600 }
e1f000f6
TG		 6601 bfd_putb32 (module_count, &lst.module_count);
6602 bfd_putb32 (module_count, &lst.module_limit);
6603 bfd_putb32 (lst_size, &lst.dir_loc);
6604 lst_size += sizeof (struct som_external_som_entry) * module_count;
252b5132
RH		 6605
6606 /* We don't support import/export tables, auxiliary headers,
6607 or free lists yet. Make the linker work a little harder
6608 to make our life easier. */
6609
e1f000f6
TG		 6610 bfd_putb32 (0, &lst.export_loc);
6611 bfd_putb32 (0, &lst.export_count);
6612 bfd_putb32 (0, &lst.import_loc);
6613 bfd_putb32 (0, &lst.aux_loc);
6614 bfd_putb32 (0, &lst.aux_size);
252b5132
RH		 6615
6616 /* Count how many symbols we will have on the hash chains and the
6617 size of the associated string table. */
82e51918 6618 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
b34976b6 6619 return FALSE;
252b5132 6620
e1f000f6 6621 lst_size += sizeof (struct som_external_lst_symbol_record) * nsyms;
252b5132
RH		 6622
6623 /* For the string table. One day we might actually use this info
6624 to avoid small seeks/reads when reading archives. */
e1f000f6
TG		 6625 bfd_putb32 (lst_size, &lst.string_loc);
6626 bfd_putb32 (stringsize, &lst.string_size);
252b5132
RH		 6627 lst_size += stringsize;
6628
6629 /* SOM ABI says this must be zero. */
e1f000f6
TG		 6630 bfd_putb32 (0, &lst.free_list);
6631 bfd_putb32 (lst_size, &lst.file_end);
252b5132
RH		 6632
6633 /* Compute the checksum. Must happen after the entire lst header
6634 has filled in. */
e1f000f6
TG		 6635 p = (unsigned char *) &lst;
6636 csum = 0;
6637 for (i = 0; i < sizeof (struct som_external_lst_header) - sizeof (int);
6638 i += 4)
6639 csum ^= bfd_getb32 (&p[i]);
6640 bfd_putb32 (csum, &lst.checksum);
6641
6642 sprintf (hdr.ar_name, "/ ");
6643 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%-12ld",
6644 bfd_ardata (abfd)->armap_timestamp);
6645 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld",
6646 statbuf.st_uid);
6647 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld",
6648 statbuf.st_gid);
6649 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-8o",
6650 (unsigned int)statbuf.st_mode);
6651 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10d",
6652 (int) lst_size);
252b5132
RH		 6653 hdr.ar_fmag[0] = '`';
6654 hdr.ar_fmag[1] = '\012';
6655
6656 /* Turn any nulls into spaces. */
6657 for (i = 0; i < sizeof (struct ar_hdr); i++)
6658 if (((char *) (&hdr))[i] == '\0')
6659 (((char *) (&hdr))[i]) = ' ';
6660
6661 /* Scribble out the ar header. */
dc810e39 6662 amt = sizeof (struct ar_hdr);
116c20d2 6663 if (bfd_bwrite ((void *) &hdr, amt, abfd) != amt)
b34976b6 6664 return FALSE;
252b5132
RH		 6665
6666 /* Now scribble out the lst header. */
e1f000f6 6667 amt = sizeof (struct som_external_lst_header);
116c20d2 6668 if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
b34976b6 6669 return FALSE;
252b5132
RH		 6670
6671 /* Build and write the armap. */
dc810e39 6672 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
b34976b6 6673 return FALSE;
6fa957a9 6674
252b5132 6675 /* Done. */
b34976b6 6676 return TRUE;
252b5132
RH		 6677}
6678
6679/* Free all information we have cached for this BFD. We can always
6680 read it again later if we need it. */
6681
b34976b6 6682static bfd_boolean
116c20d2 6683som_bfd_free_cached_info (bfd *abfd)
252b5132
RH		 6684{
6685 asection *o;
6686
6687 if (bfd_get_format (abfd) != bfd_object)
b34976b6 6688 return TRUE;
252b5132
RH		 6689
6690#define FREE(x) if (x != NULL) { free (x); x = NULL; }
6691 /* Free the native string and symbol tables. */
6692 FREE (obj_som_symtab (abfd));
6693 FREE (obj_som_stringtab (abfd));
116c20d2 6694 for (o = abfd->sections; o != NULL; o = o->next)
252b5132
RH		 6695 {
6696 /* Free the native relocations. */
dc810e39 6697 o->reloc_count = (unsigned) -1;
252b5132 6698 FREE (som_section_data (o)->reloc_stream);
7da73d69 6699 /* Do not free the generic relocations as they are objalloc'ed. */
252b5132
RH		 6700 }
6701#undef FREE
6702
b34976b6 6703 return TRUE;
252b5132
RH		 6704}
6705
6fa957a9 6706/* End of miscellaneous support functions. */
252b5132
RH		 6707
6708/* Linker support functions. */
7eae7d22 6709
b34976b6 6710static bfd_boolean
116c20d2 6711som_bfd_link_split_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
252b5132 6712{
116c20d2 6713 return som_is_subspace (sec) && sec->size > 240000;
252b5132
RH		 6714}
6715
116c20d2
NC		 6716#define som_close_and_cleanup som_bfd_free_cached_info
6717#define som_read_ar_hdr _bfd_generic_read_ar_hdr
9848eadf 6718#define som_write_ar_hdr _bfd_generic_write_ar_hdr
116c20d2
NC		 6719#define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6720#define som_get_elt_at_index _bfd_generic_get_elt_at_index
6721#define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6722#define som_truncate_arname bfd_bsd_truncate_arname
6723#define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6724#define som_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
6725#define som_update_armap_timestamp bfd_true
6726#define som_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
6727#define som_get_lineno _bfd_nosymbols_get_lineno
6728#define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6729#define som_read_minisymbols _bfd_generic_read_minisymbols
6730#define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6731#define som_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
6732#define som_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
6733#define som_bfd_relax_section bfd_generic_relax_section
6734#define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6735#define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6736#define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6737#define som_bfd_link_just_syms _bfd_generic_link_just_syms
1338dd10
PB		 6738#define som_bfd_copy_link_hash_symbol_type \
6739 _bfd_generic_copy_link_hash_symbol_type
116c20d2
NC		 6740#define som_bfd_final_link _bfd_generic_final_link
6741#define som_bfd_gc_sections bfd_generic_gc_sections
ae17ab41 6742#define som_bfd_lookup_section_flags bfd_generic_lookup_section_flags
116c20d2
NC		 6743#define som_bfd_merge_sections bfd_generic_merge_sections
6744#define som_bfd_is_group_section bfd_generic_is_group_section
6745#define som_bfd_discard_group bfd_generic_discard_group
6746#define som_section_already_linked _bfd_generic_section_already_linked
3023e3f6 6747#define som_bfd_define_common_symbol bfd_generic_define_common_symbol
6a808a40
MK		 6748#define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
6749#define som_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
6750#define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
580a09db 6751#define som_find_inliner_info _bfd_nosymbols_find_inliner_info
116c20d2 6752
6d00b590 6753const bfd_target hppa_som_vec =
116c20d2
NC		 6754{
6755 "som", /* Name. */
252b5132 6756 bfd_target_som_flavour,
116c20d2
NC		 6757 BFD_ENDIAN_BIG, /* Target byte order. */
6758 BFD_ENDIAN_BIG, /* Target headers byte order. */
6759 (HAS_RELOC | EXEC_P | /* Object flags. */
252b5132
RH		 6760 HAS_LINENO | HAS_DEBUG |
6761 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
351e2b5a 6762 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
116c20d2 6763 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
252b5132 6764
116c20d2
NC		 6765 /* Leading_symbol_char: is the first char of a user symbol
6766 predictable, and if so what is it. */
252b5132 6767 0,
116c20d2
NC		 6768 '/', /* AR_pad_char. */
6769 14, /* AR_max_namelen. */
0aabe54e 6770 0, /* match priority. */
252b5132
RH		 6771 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6772 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 6773 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
252b5132
RH		 6774 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6775 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
116c20d2 6776 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
252b5132 6777 {_bfd_dummy_target,
116c20d2 6778 som_object_p, /* bfd_check_format. */
252b5132
RH		 6779 bfd_generic_archive_p,
6780 _bfd_dummy_target
6781 },
6782 {
6783 bfd_false,
6784 som_mkobject,
6785 _bfd_generic_mkarchive,
6786 bfd_false
6787 },
6788 {
6789 bfd_false,
6790 som_write_object_contents,
6791 _bfd_write_archive_contents,
6792 bfd_false,
6793 },
6794#undef som
6795
6796 BFD_JUMP_TABLE_GENERIC (som),
6797 BFD_JUMP_TABLE_COPY (som),
6798 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6799 BFD_JUMP_TABLE_ARCHIVE (som),
6800 BFD_JUMP_TABLE_SYMBOLS (som),
6801 BFD_JUMP_TABLE_RELOCS (som),
6802 BFD_JUMP_TABLE_WRITE (som),
6803 BFD_JUMP_TABLE_LINK (som),
6804 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6805
c3c89269 6806 NULL,
6fa957a9 6807
116c20d2 6808 NULL
252b5132
RH		 6809};
6810
GDB Binutils - Deliverables
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