1 /* bfd back-end for HP PA-RISC SOM objects.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004
4 Free Software Foundation, Inc.
6 Contributed by the Center for Software Science at the
9 This file is part of BFD, the Binary File Descriptor library.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 #include "alloca-conf.h"
30 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) || defined(HOST_HPPAMPEIX)
34 #include "safe-ctype.h"
36 #include <sys/param.h>
38 #include <machine/reg.h>
41 /* Magic not defined in standard HP-UX header files until 8.0. */
43 #ifndef CPU_PA_RISC1_0
44 #define CPU_PA_RISC1_0 0x20B
45 #endif /* CPU_PA_RISC1_0 */
47 #ifndef CPU_PA_RISC1_1
48 #define CPU_PA_RISC1_1 0x210
49 #endif /* CPU_PA_RISC1_1 */
51 #ifndef CPU_PA_RISC2_0
52 #define CPU_PA_RISC2_0 0x214
53 #endif /* CPU_PA_RISC2_0 */
55 #ifndef _PA_RISC1_0_ID
56 #define _PA_RISC1_0_ID CPU_PA_RISC1_0
57 #endif /* _PA_RISC1_0_ID */
59 #ifndef _PA_RISC1_1_ID
60 #define _PA_RISC1_1_ID CPU_PA_RISC1_1
61 #endif /* _PA_RISC1_1_ID */
63 #ifndef _PA_RISC2_0_ID
64 #define _PA_RISC2_0_ID CPU_PA_RISC2_0
65 #endif /* _PA_RISC2_0_ID */
67 #ifndef _PA_RISC_MAXID
68 #define _PA_RISC_MAXID 0x2FF
69 #endif /* _PA_RISC_MAXID */
72 #define _PA_RISC_ID(__m_num) \
73 (((__m_num) == _PA_RISC1_0_ID) || \
74 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
75 #endif /* _PA_RISC_ID */
77 /* HIUX in it's infinite stupidity changed the names for several "well
78 known" constants. Work around such braindamage. Try the HPUX version
79 first, then the HIUX version, and finally provide a default. */
81 #define EXEC_AUX_ID HPUX_AUX_ID
84 #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
85 #define EXEC_AUX_ID HIUX_AUX_ID
92 /* Size (in chars) of the temporary buffers used during fixup and string
95 #define SOM_TMP_BUFSIZE 8192
97 /* Size of the hash table in archives. */
98 #define SOM_LST_HASH_SIZE 31
100 /* Max number of SOMs to be found in an archive. */
101 #define SOM_LST_MODULE_LIMIT 1024
103 /* Generic alignment macro. */
104 #define SOM_ALIGN(val, alignment) \
105 (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1))
107 /* SOM allows any one of the four previous relocations to be reused
108 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
109 relocations are always a single byte, using a R_PREV_FIXUP instead
110 of some multi-byte relocation makes object files smaller.
112 Note one side effect of using a R_PREV_FIXUP is the relocation that
113 is being repeated moves to the front of the queue. */
115 unsigned char *reloc;
119 /* This fully describes the symbol types which may be attached to
120 an EXPORT or IMPORT directive. Only SOM uses this formation
121 (ELF has no need for it). */
124 SYMBOL_TYPE_ABSOLUTE,
128 SYMBOL_TYPE_MILLICODE,
130 SYMBOL_TYPE_PRI_PROG,
131 SYMBOL_TYPE_SEC_PROG,
134 struct section_to_type {
139 /* Assorted symbol information that needs to be derived from the BFD symbol
140 and/or the BFD backend private symbol data. */
141 struct som_misc_symbol_info {
142 unsigned int symbol_type;
143 unsigned int symbol_scope;
144 unsigned int arg_reloc;
145 unsigned int symbol_info;
146 unsigned int symbol_value;
147 unsigned int priv_level;
148 unsigned int secondary_def;
149 unsigned int is_comdat;
150 unsigned int is_common;
151 unsigned int dup_common;
154 /* Forward declarations. */
156 static bfd_boolean som_mkobject
158 static const bfd_target * som_object_setup
159 PARAMS ((bfd *, struct header *, struct som_exec_auxhdr *, unsigned long));
160 static bfd_boolean setup_sections
161 PARAMS ((bfd *, struct header *, unsigned long));
162 static const bfd_target * som_object_p
164 static bfd_boolean som_write_object_contents
166 static bfd_boolean som_slurp_string_table
168 static unsigned int som_slurp_symbol_table
170 static long som_get_symtab_upper_bound
172 static long som_canonicalize_reloc
173 PARAMS ((bfd *, sec_ptr, arelent **, asymbol **));
174 static long som_get_reloc_upper_bound
175 PARAMS ((bfd *, sec_ptr));
176 static unsigned int som_set_reloc_info
177 PARAMS ((unsigned char *, unsigned int, arelent *, asection *,
178 asymbol **, bfd_boolean));
179 static bfd_boolean som_slurp_reloc_table
180 PARAMS ((bfd *, asection *, asymbol **, bfd_boolean));
181 static long som_canonicalize_symtab
182 PARAMS ((bfd *, asymbol **));
183 static asymbol * som_make_empty_symbol
185 static void som_print_symbol
186 PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
187 static bfd_boolean som_new_section_hook
188 PARAMS ((bfd *, asection *));
189 static bfd_boolean som_bfd_copy_private_symbol_data
190 PARAMS ((bfd *, asymbol *, bfd *, asymbol *));
191 static bfd_boolean som_bfd_copy_private_section_data
192 PARAMS ((bfd *, asection *, bfd *, asection *));
193 static bfd_boolean som_bfd_copy_private_bfd_data
194 PARAMS ((bfd *, bfd *));
195 #define som_bfd_copy_private_header_data \
196 _bfd_generic_bfd_copy_private_header_data
197 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
198 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
199 static bfd_boolean som_bfd_is_local_label_name
200 PARAMS ((bfd *, const char *));
201 static bfd_boolean som_set_section_contents
202 PARAMS ((bfd *, sec_ptr, const PTR, file_ptr, bfd_size_type));
203 static bfd_boolean som_get_section_contents
204 PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
205 static bfd_boolean som_set_arch_mach
206 PARAMS ((bfd *, enum bfd_architecture, unsigned long));
207 static bfd_boolean som_find_nearest_line
208 PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
209 const char **, unsigned int *));
210 static void som_get_symbol_info
211 PARAMS ((bfd *, asymbol *, symbol_info *));
212 static asection * bfd_section_from_som_symbol
213 PARAMS ((bfd *, struct symbol_dictionary_record *));
214 static int exact_log2
215 PARAMS ((unsigned int));
216 static bfd_reloc_status_type hppa_som_reloc
217 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
218 static void som_initialize_reloc_queue
219 PARAMS ((struct reloc_queue *));
220 static void som_reloc_queue_insert
221 PARAMS ((unsigned char *, unsigned int, struct reloc_queue *));
222 static void som_reloc_queue_fix
223 PARAMS ((struct reloc_queue *, unsigned int));
224 static int som_reloc_queue_find
225 PARAMS ((unsigned char *, unsigned int, struct reloc_queue *));
226 static unsigned char * try_prev_fixup
227 PARAMS ((bfd *, int *, unsigned char *, unsigned int, struct reloc_queue *));
228 static unsigned char * som_reloc_skip
229 PARAMS ((bfd *, unsigned int, unsigned char *, unsigned int *,
230 struct reloc_queue *));
231 static unsigned char * som_reloc_addend
232 PARAMS ((bfd *, bfd_vma, unsigned char *, unsigned int *,
233 struct reloc_queue *));
234 static unsigned char * som_reloc_call
235 PARAMS ((bfd *, unsigned char *, unsigned int *, arelent *, int,
236 struct reloc_queue *));
237 static unsigned long som_count_spaces
239 static unsigned long som_count_subspaces
241 static int compare_syms
242 PARAMS ((const void *, const void *));
243 static int compare_subspaces
244 PARAMS ((const void *, const void *));
245 static unsigned long som_compute_checksum
247 static bfd_boolean som_prep_headers
249 static int som_sizeof_headers
250 PARAMS ((bfd *, bfd_boolean));
251 static bfd_boolean som_finish_writing
253 static bfd_boolean som_build_and_write_symbol_table
255 static void som_prep_for_fixups
256 PARAMS ((bfd *, asymbol **, unsigned long));
257 static bfd_boolean som_write_fixups
258 PARAMS ((bfd *, unsigned long, unsigned int *));
259 static bfd_boolean som_write_space_strings
260 PARAMS ((bfd *, unsigned long, unsigned int *));
261 static bfd_boolean som_write_symbol_strings
262 PARAMS ((bfd *, unsigned long, asymbol **, unsigned int, unsigned *,
264 static bfd_boolean som_begin_writing
266 static reloc_howto_type * som_bfd_reloc_type_lookup
267 PARAMS ((bfd *, bfd_reloc_code_real_type));
268 static char som_section_type
269 PARAMS ((const char *));
270 static int som_decode_symclass
271 PARAMS ((asymbol *));
272 static bfd_boolean som_bfd_count_ar_symbols
273 PARAMS ((bfd *, struct lst_header *, symindex *));
274 static bfd_boolean som_bfd_fill_in_ar_symbols
275 PARAMS ((bfd *, struct lst_header *, carsym **));
276 static bfd_boolean som_slurp_armap
278 static bfd_boolean som_write_armap
279 PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
280 static void som_bfd_derive_misc_symbol_info
281 PARAMS ((bfd *, asymbol *, struct som_misc_symbol_info *));
282 static bfd_boolean som_bfd_prep_for_ar_write
283 PARAMS ((bfd *, unsigned int *, unsigned int *));
284 static unsigned int som_bfd_ar_symbol_hash
285 PARAMS ((asymbol *));
286 static bfd_boolean som_bfd_ar_write_symbol_stuff
287 PARAMS ((bfd *, unsigned int, unsigned int, struct lst_header,
289 static bfd_boolean som_is_space
290 PARAMS ((asection *));
291 static bfd_boolean som_is_subspace
292 PARAMS ((asection *));
293 static bfd_boolean som_is_container
294 PARAMS ((asection *, asection *));
295 static bfd_boolean som_bfd_free_cached_info
297 static bfd_boolean som_bfd_link_split_section
298 PARAMS ((bfd *, asection *));
300 /* Map SOM section names to POSIX/BSD single-character symbol types.
302 This table includes all the standard subspaces as defined in the
303 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
304 some reason was left out, and sections specific to embedded stabs. */
306 static const struct section_to_type stt[] = {
308 {"$SHLIB_INFO$", 't'},
309 {"$MILLICODE$", 't'},
312 {"$UNWIND_START$", 't'},
316 {"$SHLIB_DATA$", 'd'},
318 {"$SHORTDATA$", 'g'},
323 {"$GDB_STRINGS$", 'N'},
324 {"$GDB_SYMBOLS$", 'N'},
328 /* About the relocation formatting table...
330 There are 256 entries in the table, one for each possible
331 relocation opcode available in SOM. We index the table by
332 the relocation opcode. The names and operations are those
333 defined by a.out_800 (4).
335 Right now this table is only used to count and perform minimal
336 processing on relocation streams so that they can be internalized
337 into BFD and symbolically printed by utilities. To make actual use
338 of them would be much more difficult, BFD's concept of relocations
339 is far too simple to handle SOM relocations. The basic assumption
340 that a relocation can be completely processed independent of other
341 relocations before an object file is written is invalid for SOM.
343 The SOM relocations are meant to be processed as a stream, they
344 specify copying of data from the input section to the output section
345 while possibly modifying the data in some manner. They also can
346 specify that a variable number of zeros or uninitialized data be
347 inserted on in the output segment at the current offset. Some
348 relocations specify that some previous relocation be re-applied at
349 the current location in the input/output sections. And finally a number
350 of relocations have effects on other sections (R_ENTRY, R_EXIT,
351 R_UNWIND_AUX and a variety of others). There isn't even enough room
352 in the BFD relocation data structure to store enough information to
353 perform all the relocations.
355 Each entry in the table has three fields.
357 The first entry is an index into this "class" of relocations. This
358 index can then be used as a variable within the relocation itself.
360 The second field is a format string which actually controls processing
361 of the relocation. It uses a simple postfix machine to do calculations
362 based on variables/constants found in the string and the relocation
365 The third field specifys whether or not this relocation may use
366 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
367 stored in the instruction.
371 L = input space byte count
372 D = index into class of relocations
373 M = output space byte count
374 N = statement number (unused?)
376 R = parameter relocation bits
378 T = first 32 bits of stack unwind information
379 U = second 32 bits of stack unwind information
380 V = a literal constant (usually used in the next relocation)
381 P = a previous relocation
383 Lower case letters (starting with 'b') refer to following
384 bytes in the relocation stream. 'b' is the next 1 byte,
385 c is the next 2 bytes, d is the next 3 bytes, etc...
386 This is the variable part of the relocation entries that
387 makes our life a living hell.
389 numerical constants are also used in the format string. Note
390 the constants are represented in decimal.
392 '+', "*" and "=" represents the obvious postfix operators.
393 '<' represents a left shift.
397 Parameter Relocation Bits:
401 Previous Relocations: The index field represents which in the queue
402 of 4 previous fixups should be re-applied.
404 Literal Constants: These are generally used to represent addend
405 parts of relocations when these constants are not stored in the
406 fields of the instructions themselves. For example the instruction
407 addil foo-$global$-0x1234 would use an override for "0x1234" rather
408 than storing it into the addil itself. */
410 struct fixup_format {
415 static const struct fixup_format som_fixup_formats[256] = {
416 /* R_NO_RELOCATION */
417 { 0, "LD1+4*=" }, /* 0x00 */
418 { 1, "LD1+4*=" }, /* 0x01 */
419 { 2, "LD1+4*=" }, /* 0x02 */
420 { 3, "LD1+4*=" }, /* 0x03 */
421 { 4, "LD1+4*=" }, /* 0x04 */
422 { 5, "LD1+4*=" }, /* 0x05 */
423 { 6, "LD1+4*=" }, /* 0x06 */
424 { 7, "LD1+4*=" }, /* 0x07 */
425 { 8, "LD1+4*=" }, /* 0x08 */
426 { 9, "LD1+4*=" }, /* 0x09 */
427 { 10, "LD1+4*=" }, /* 0x0a */
428 { 11, "LD1+4*=" }, /* 0x0b */
429 { 12, "LD1+4*=" }, /* 0x0c */
430 { 13, "LD1+4*=" }, /* 0x0d */
431 { 14, "LD1+4*=" }, /* 0x0e */
432 { 15, "LD1+4*=" }, /* 0x0f */
433 { 16, "LD1+4*=" }, /* 0x10 */
434 { 17, "LD1+4*=" }, /* 0x11 */
435 { 18, "LD1+4*=" }, /* 0x12 */
436 { 19, "LD1+4*=" }, /* 0x13 */
437 { 20, "LD1+4*=" }, /* 0x14 */
438 { 21, "LD1+4*=" }, /* 0x15 */
439 { 22, "LD1+4*=" }, /* 0x16 */
440 { 23, "LD1+4*=" }, /* 0x17 */
441 { 0, "LD8<b+1+4*=" }, /* 0x18 */
442 { 1, "LD8<b+1+4*=" }, /* 0x19 */
443 { 2, "LD8<b+1+4*=" }, /* 0x1a */
444 { 3, "LD8<b+1+4*=" }, /* 0x1b */
445 { 0, "LD16<c+1+4*=" }, /* 0x1c */
446 { 1, "LD16<c+1+4*=" }, /* 0x1d */
447 { 2, "LD16<c+1+4*=" }, /* 0x1e */
448 { 0, "Ld1+=" }, /* 0x1f */
450 { 0, "Lb1+4*=" }, /* 0x20 */
451 { 1, "Ld1+=" }, /* 0x21 */
453 { 0, "Lb1+4*=" }, /* 0x22 */
454 { 1, "Ld1+=" }, /* 0x23 */
456 { 0, "L4=" }, /* 0x24 */
457 /* R_DATA_ONE_SYMBOL */
458 { 0, "L4=Sb=" }, /* 0x25 */
459 { 1, "L4=Sd=" }, /* 0x26 */
461 { 0, "L4=Sb=" }, /* 0x27 */
462 { 1, "L4=Sd=" }, /* 0x28 */
464 { 0, "L4=" }, /* 0x29 */
465 /* R_REPEATED_INIT */
466 { 0, "L4=Mb1+4*=" }, /* 0x2a */
467 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
468 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
469 { 3, "Ld1+=Me1+=" }, /* 0x2d */
470 { 0, "" }, /* 0x2e */
471 { 0, "" }, /* 0x2f */
473 { 0, "L4=RD=Sb=" }, /* 0x30 */
474 { 1, "L4=RD=Sb=" }, /* 0x31 */
475 { 2, "L4=RD=Sb=" }, /* 0x32 */
476 { 3, "L4=RD=Sb=" }, /* 0x33 */
477 { 4, "L4=RD=Sb=" }, /* 0x34 */
478 { 5, "L4=RD=Sb=" }, /* 0x35 */
479 { 6, "L4=RD=Sb=" }, /* 0x36 */
480 { 7, "L4=RD=Sb=" }, /* 0x37 */
481 { 8, "L4=RD=Sb=" }, /* 0x38 */
482 { 9, "L4=RD=Sb=" }, /* 0x39 */
483 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
484 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
485 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
486 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
487 /* R_SHORT_PCREL_MODE */
488 { 0, "" }, /* 0x3e */
489 /* R_LONG_PCREL_MODE */
490 { 0, "" }, /* 0x3f */
492 { 0, "L4=RD=Sb=" }, /* 0x40 */
493 { 1, "L4=RD=Sb=" }, /* 0x41 */
494 { 2, "L4=RD=Sb=" }, /* 0x42 */
495 { 3, "L4=RD=Sb=" }, /* 0x43 */
496 { 4, "L4=RD=Sb=" }, /* 0x44 */
497 { 5, "L4=RD=Sb=" }, /* 0x45 */
498 { 6, "L4=RD=Sb=" }, /* 0x46 */
499 { 7, "L4=RD=Sb=" }, /* 0x47 */
500 { 8, "L4=RD=Sb=" }, /* 0x48 */
501 { 9, "L4=RD=Sb=" }, /* 0x49 */
502 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
503 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
504 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
505 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
507 { 0, "" }, /* 0x4e */
508 { 0, "" }, /* 0x4f */
510 { 0, "L4=SD=" }, /* 0x50 */
511 { 1, "L4=SD=" }, /* 0x51 */
512 { 2, "L4=SD=" }, /* 0x52 */
513 { 3, "L4=SD=" }, /* 0x53 */
514 { 4, "L4=SD=" }, /* 0x54 */
515 { 5, "L4=SD=" }, /* 0x55 */
516 { 6, "L4=SD=" }, /* 0x56 */
517 { 7, "L4=SD=" }, /* 0x57 */
518 { 8, "L4=SD=" }, /* 0x58 */
519 { 9, "L4=SD=" }, /* 0x59 */
520 { 10, "L4=SD=" }, /* 0x5a */
521 { 11, "L4=SD=" }, /* 0x5b */
522 { 12, "L4=SD=" }, /* 0x5c */
523 { 13, "L4=SD=" }, /* 0x5d */
524 { 14, "L4=SD=" }, /* 0x5e */
525 { 15, "L4=SD=" }, /* 0x5f */
526 { 16, "L4=SD=" }, /* 0x60 */
527 { 17, "L4=SD=" }, /* 0x61 */
528 { 18, "L4=SD=" }, /* 0x62 */
529 { 19, "L4=SD=" }, /* 0x63 */
530 { 20, "L4=SD=" }, /* 0x64 */
531 { 21, "L4=SD=" }, /* 0x65 */
532 { 22, "L4=SD=" }, /* 0x66 */
533 { 23, "L4=SD=" }, /* 0x67 */
534 { 24, "L4=SD=" }, /* 0x68 */
535 { 25, "L4=SD=" }, /* 0x69 */
536 { 26, "L4=SD=" }, /* 0x6a */
537 { 27, "L4=SD=" }, /* 0x6b */
538 { 28, "L4=SD=" }, /* 0x6c */
539 { 29, "L4=SD=" }, /* 0x6d */
540 { 30, "L4=SD=" }, /* 0x6e */
541 { 31, "L4=SD=" }, /* 0x6f */
542 { 32, "L4=Sb=" }, /* 0x70 */
543 { 33, "L4=Sd=" }, /* 0x71 */
545 { 0, "" }, /* 0x72 */
546 { 0, "" }, /* 0x73 */
547 { 0, "" }, /* 0x74 */
548 { 0, "" }, /* 0x75 */
549 { 0, "" }, /* 0x76 */
550 { 0, "" }, /* 0x77 */
552 { 0, "L4=Sb=" }, /* 0x78 */
553 { 1, "L4=Sd=" }, /* 0x79 */
555 { 0, "" }, /* 0x7a */
556 { 0, "" }, /* 0x7b */
557 { 0, "" }, /* 0x7c */
558 { 0, "" }, /* 0x7d */
559 { 0, "" }, /* 0x7e */
560 { 0, "" }, /* 0x7f */
561 /* R_CODE_ONE_SYMBOL */
562 { 0, "L4=SD=" }, /* 0x80 */
563 { 1, "L4=SD=" }, /* 0x81 */
564 { 2, "L4=SD=" }, /* 0x82 */
565 { 3, "L4=SD=" }, /* 0x83 */
566 { 4, "L4=SD=" }, /* 0x84 */
567 { 5, "L4=SD=" }, /* 0x85 */
568 { 6, "L4=SD=" }, /* 0x86 */
569 { 7, "L4=SD=" }, /* 0x87 */
570 { 8, "L4=SD=" }, /* 0x88 */
571 { 9, "L4=SD=" }, /* 0x89 */
572 { 10, "L4=SD=" }, /* 0x8q */
573 { 11, "L4=SD=" }, /* 0x8b */
574 { 12, "L4=SD=" }, /* 0x8c */
575 { 13, "L4=SD=" }, /* 0x8d */
576 { 14, "L4=SD=" }, /* 0x8e */
577 { 15, "L4=SD=" }, /* 0x8f */
578 { 16, "L4=SD=" }, /* 0x90 */
579 { 17, "L4=SD=" }, /* 0x91 */
580 { 18, "L4=SD=" }, /* 0x92 */
581 { 19, "L4=SD=" }, /* 0x93 */
582 { 20, "L4=SD=" }, /* 0x94 */
583 { 21, "L4=SD=" }, /* 0x95 */
584 { 22, "L4=SD=" }, /* 0x96 */
585 { 23, "L4=SD=" }, /* 0x97 */
586 { 24, "L4=SD=" }, /* 0x98 */
587 { 25, "L4=SD=" }, /* 0x99 */
588 { 26, "L4=SD=" }, /* 0x9a */
589 { 27, "L4=SD=" }, /* 0x9b */
590 { 28, "L4=SD=" }, /* 0x9c */
591 { 29, "L4=SD=" }, /* 0x9d */
592 { 30, "L4=SD=" }, /* 0x9e */
593 { 31, "L4=SD=" }, /* 0x9f */
594 { 32, "L4=Sb=" }, /* 0xa0 */
595 { 33, "L4=Sd=" }, /* 0xa1 */
597 { 0, "" }, /* 0xa2 */
598 { 0, "" }, /* 0xa3 */
599 { 0, "" }, /* 0xa4 */
600 { 0, "" }, /* 0xa5 */
601 { 0, "" }, /* 0xa6 */
602 { 0, "" }, /* 0xa7 */
603 { 0, "" }, /* 0xa8 */
604 { 0, "" }, /* 0xa9 */
605 { 0, "" }, /* 0xaa */
606 { 0, "" }, /* 0xab */
607 { 0, "" }, /* 0xac */
608 { 0, "" }, /* 0xad */
610 { 0, "L4=Sb=" }, /* 0xae */
611 { 1, "L4=Sd=" }, /* 0xaf */
613 { 0, "L4=Sb=" }, /* 0xb0 */
614 { 1, "L4=Sd=" }, /* 0xb1 */
616 { 0, "L4=" }, /* 0xb2 */
618 { 0, "Te=Ue=" }, /* 0xb3 */
619 { 1, "Uf=" }, /* 0xb4 */
621 { 0, "" }, /* 0xb5 */
623 { 0, "" }, /* 0xb6 */
625 { 0, "" }, /* 0xb7 */
627 { 0, "R0=" }, /* 0xb8 */
628 { 1, "Rb4*=" }, /* 0xb9 */
629 { 2, "Rd4*=" }, /* 0xba */
631 { 0, "" }, /* 0xbb */
633 { 0, "" }, /* 0xbc */
635 { 0, "Nb=" }, /* 0xbd */
636 { 1, "Nc=" }, /* 0xbe */
637 { 2, "Nd=" }, /* 0xbf */
639 { 0, "L4=" }, /* 0xc0 */
641 { 0, "L4=" }, /* 0xc1 */
643 { 0, "" }, /* 0xc2 */
645 { 0, "" }, /* 0xc3 */
647 { 0, "" }, /* 0xc4 */
649 { 0, "" }, /* 0xc5 */
651 { 0, "" }, /* 0xc6 */
653 { 0, "" }, /* 0xc7 */
655 { 0, "" }, /* 0xc8 */
656 /* R_DATA_OVERRIDE */
657 { 0, "V0=" }, /* 0xc9 */
658 { 1, "Vb=" }, /* 0xca */
659 { 2, "Vc=" }, /* 0xcb */
660 { 3, "Vd=" }, /* 0xcc */
661 { 4, "Ve=" }, /* 0xcd */
663 { 0, "" }, /* 0xce */
665 { 0,"Sd=Ve=Ee=" }, /* 0xcf */
667 { 0, "Ob=" }, /* 0xd0 */
669 { 0, "Ob=Sd=" }, /* 0xd1 */
671 { 0, "Ob=Ve=" }, /* 0xd2 */
673 { 0, "P" }, /* 0xd3 */
674 { 1, "P" }, /* 0xd4 */
675 { 2, "P" }, /* 0xd5 */
676 { 3, "P" }, /* 0xd6 */
678 { 0, "" }, /* 0xd7 */
680 { 0, "" }, /* 0xd8 */
682 { 0, "" }, /* 0xd9 */
684 { 0, "Eb=Sd=Ve=" }, /* 0xda */
686 { 0, "Eb=Mb=" }, /* 0xdb */
688 { 0, "" }, /* 0xdc */
690 { 0, "Ob=Vf=" }, /* 0xdd */
692 { 0, "" }, /* 0xde */
693 { 0, "" }, /* 0xdf */
694 { 0, "" }, /* 0xe0 */
695 { 0, "" }, /* 0xe1 */
696 { 0, "" }, /* 0xe2 */
697 { 0, "" }, /* 0xe3 */
698 { 0, "" }, /* 0xe4 */
699 { 0, "" }, /* 0xe5 */
700 { 0, "" }, /* 0xe6 */
701 { 0, "" }, /* 0xe7 */
702 { 0, "" }, /* 0xe8 */
703 { 0, "" }, /* 0xe9 */
704 { 0, "" }, /* 0xea */
705 { 0, "" }, /* 0xeb */
706 { 0, "" }, /* 0xec */
707 { 0, "" }, /* 0xed */
708 { 0, "" }, /* 0xee */
709 { 0, "" }, /* 0xef */
710 { 0, "" }, /* 0xf0 */
711 { 0, "" }, /* 0xf1 */
712 { 0, "" }, /* 0xf2 */
713 { 0, "" }, /* 0xf3 */
714 { 0, "" }, /* 0xf4 */
715 { 0, "" }, /* 0xf5 */
716 { 0, "" }, /* 0xf6 */
717 { 0, "" }, /* 0xf7 */
718 { 0, "" }, /* 0xf8 */
719 { 0, "" }, /* 0xf9 */
720 { 0, "" }, /* 0xfa */
721 { 0, "" }, /* 0xfb */
722 { 0, "" }, /* 0xfc */
723 { 0, "" }, /* 0xfd */
724 { 0, "" }, /* 0xfe */
725 { 0, "" }, /* 0xff */
728 static const int comp1_opcodes[] = {
749 static const int comp2_opcodes[] = {
757 static const int comp3_opcodes[] = {
763 /* These apparently are not in older versions of hpux reloc.h (hpux7). */
765 #define R_DLT_REL 0x78
769 #define R_AUX_UNWIND 0xcf
773 #define R_SEC_STMT 0xd7
776 /* And these first appeared in hpux10. */
777 #ifndef R_SHORT_PCREL_MODE
778 #define NO_PCREL_MODES
779 #define R_SHORT_PCREL_MODE 0x3e
782 #ifndef R_LONG_PCREL_MODE
783 #define R_LONG_PCREL_MODE 0x3f
795 #define R_LINETAB 0xda
798 #ifndef R_LINETAB_ESC
799 #define R_LINETAB_ESC 0xdb
802 #ifndef R_LTP_OVERRIDE
803 #define R_LTP_OVERRIDE 0xdc
807 #define R_COMMENT 0xdd
810 #define SOM_HOWTO(TYPE, NAME) \
811 HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
813 static reloc_howto_type som_hppa_howto_table[] = {
814 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
815 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
816 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
817 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
818 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
819 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
820 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
821 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
822 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
823 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
824 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
825 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
826 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
827 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
828 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
829 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
830 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
831 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
832 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
833 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
834 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
835 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
836 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
837 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
838 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
839 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
840 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
841 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
842 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
843 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
844 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
845 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
846 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
847 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
848 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
849 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
850 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
851 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
852 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
853 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
854 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
855 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
856 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
857 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
858 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
859 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
860 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
861 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
862 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
863 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
864 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
865 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
866 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
867 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
868 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
869 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
870 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
871 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
872 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
873 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
874 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
875 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
876 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
877 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
878 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
879 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
880 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
881 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
882 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
883 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
884 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
885 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
886 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
887 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
888 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
889 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
890 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
891 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
892 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
893 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
894 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
895 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
896 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
897 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
898 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
899 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
900 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
901 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
902 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
903 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
904 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
905 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
906 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
907 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
908 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
909 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
910 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
911 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
912 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
913 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
914 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
915 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
916 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
917 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
918 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
919 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
920 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
921 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
922 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
923 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
924 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
925 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
926 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
927 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
928 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
929 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
930 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
931 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
932 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
933 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
934 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
935 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
936 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
937 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
938 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
939 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
940 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
941 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
942 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
943 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
944 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
945 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
946 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
947 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
948 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
949 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
950 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
951 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
952 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
953 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
954 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
955 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
956 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
957 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
958 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
959 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
960 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
961 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
962 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
963 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
964 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
965 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
966 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
967 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
968 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
969 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
970 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
971 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
972 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
973 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
974 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
975 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
976 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
977 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
978 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
979 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
980 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
981 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
982 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
983 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
984 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
985 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
986 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
987 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
988 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
989 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
990 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
991 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
992 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
993 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
994 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
995 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
996 SOM_HOWTO (R_EXIT, "R_EXIT"),
997 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
998 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
999 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
1000 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
1001 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
1002 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
1003 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
1004 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
1005 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
1006 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
1007 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
1008 SOM_HOWTO (R_FSEL, "R_FSEL"),
1009 SOM_HOWTO (R_LSEL, "R_LSEL"),
1010 SOM_HOWTO (R_RSEL, "R_RSEL"),
1011 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
1012 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
1013 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
1014 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
1015 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1016 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1017 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1018 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1019 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
1020 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
1021 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
1022 SOM_HOWTO (R_COMP1, "R_COMP1"),
1023 SOM_HOWTO (R_COMP2, "R_COMP2"),
1024 SOM_HOWTO (R_COMP3, "R_COMP3"),
1025 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1026 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1027 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1028 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
1029 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
1030 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
1031 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
1032 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
1033 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
1034 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
1035 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
1036 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1037 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1038 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1039 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1040 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1041 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1042 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1043 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1044 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1045 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1046 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1047 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1048 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1049 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1050 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1051 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1052 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1053 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1054 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1055 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1056 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1057 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1058 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1059 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1060 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1061 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1062 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1063 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1064 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1065 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1066 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1067 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1068 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1069 SOM_HOWTO (R_RESERVED, "R_RESERVED")
1072 /* Initialize the SOM relocation queue. By definition the queue holds
1073 the last four multibyte fixups. */
1076 som_initialize_reloc_queue (queue)
1077 struct reloc_queue *queue;
1079 queue[0].reloc = NULL;
1081 queue[1].reloc = NULL;
1083 queue[2].reloc = NULL;
1085 queue[3].reloc = NULL;
1089 /* Insert a new relocation into the relocation queue. */
1092 som_reloc_queue_insert (p, size, queue)
1095 struct reloc_queue *queue;
1097 queue[3].reloc = queue[2].reloc;
1098 queue[3].size = queue[2].size;
1099 queue[2].reloc = queue[1].reloc;
1100 queue[2].size = queue[1].size;
1101 queue[1].reloc = queue[0].reloc;
1102 queue[1].size = queue[0].size;
1104 queue[0].size = size;
1107 /* When an entry in the relocation queue is reused, the entry moves
1108 to the front of the queue. */
1111 som_reloc_queue_fix (queue, index)
1112 struct reloc_queue *queue;
1120 unsigned char *tmp1 = queue[0].reloc;
1121 unsigned int tmp2 = queue[0].size;
1122 queue[0].reloc = queue[1].reloc;
1123 queue[0].size = queue[1].size;
1124 queue[1].reloc = tmp1;
1125 queue[1].size = tmp2;
1131 unsigned char *tmp1 = queue[0].reloc;
1132 unsigned int tmp2 = queue[0].size;
1133 queue[0].reloc = queue[2].reloc;
1134 queue[0].size = queue[2].size;
1135 queue[2].reloc = queue[1].reloc;
1136 queue[2].size = queue[1].size;
1137 queue[1].reloc = tmp1;
1138 queue[1].size = tmp2;
1144 unsigned char *tmp1 = queue[0].reloc;
1145 unsigned int tmp2 = queue[0].size;
1146 queue[0].reloc = queue[3].reloc;
1147 queue[0].size = queue[3].size;
1148 queue[3].reloc = queue[2].reloc;
1149 queue[3].size = queue[2].size;
1150 queue[2].reloc = queue[1].reloc;
1151 queue[2].size = queue[1].size;
1152 queue[1].reloc = tmp1;
1153 queue[1].size = tmp2;
1159 /* Search for a particular relocation in the relocation queue. */
1162 som_reloc_queue_find (p, size, queue)
1165 struct reloc_queue *queue;
1167 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
1168 && size == queue[0].size)
1170 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
1171 && size == queue[1].size)
1173 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1174 && size == queue[2].size)
1176 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1177 && size == queue[3].size)
1182 static unsigned char *
1183 try_prev_fixup (abfd, subspace_reloc_sizep, p, size, queue)
1184 bfd *abfd ATTRIBUTE_UNUSED;
1185 int *subspace_reloc_sizep;
1188 struct reloc_queue *queue;
1190 int queue_index = som_reloc_queue_find (p, size, queue);
1192 if (queue_index != -1)
1194 /* Found this in a previous fixup. Undo the fixup we
1195 just built and use R_PREV_FIXUP instead. We saved
1196 a total of size - 1 bytes in the fixup stream. */
1197 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1199 *subspace_reloc_sizep += 1;
1200 som_reloc_queue_fix (queue, queue_index);
1204 som_reloc_queue_insert (p, size, queue);
1205 *subspace_reloc_sizep += size;
1211 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1212 bytes without any relocation. Update the size of the subspace
1213 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
1214 current pointer into the relocation stream. */
1216 static unsigned char *
1217 som_reloc_skip (abfd, skip, p, subspace_reloc_sizep, queue)
1221 unsigned int *subspace_reloc_sizep;
1222 struct reloc_queue *queue;
1224 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1225 then R_PREV_FIXUPs to get the difference down to a
1227 if (skip >= 0x1000000)
1230 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1231 bfd_put_8 (abfd, 0xff, p + 1);
1232 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
1233 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1234 while (skip >= 0x1000000)
1237 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1239 *subspace_reloc_sizep += 1;
1240 /* No need to adjust queue here since we are repeating the
1241 most recent fixup. */
1245 /* The difference must be less than 0x1000000. Use one
1246 more R_NO_RELOCATION entry to get to the right difference. */
1247 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1249 /* Difference can be handled in a simple single-byte
1250 R_NO_RELOCATION entry. */
1253 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1254 *subspace_reloc_sizep += 1;
1257 /* Handle it with a two byte R_NO_RELOCATION entry. */
1258 else if (skip <= 0x1000)
1260 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1261 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1262 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1264 /* Handle it with a three byte R_NO_RELOCATION entry. */
1267 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
1268 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
1269 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1272 /* Ugh. Punt and use a 4 byte entry. */
1275 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1276 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
1277 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
1278 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1283 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1284 from a BFD relocation. Update the size of the subspace relocation
1285 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1286 into the relocation stream. */
1288 static unsigned char *
1289 som_reloc_addend (abfd, addend, p, subspace_reloc_sizep, queue)
1293 unsigned int *subspace_reloc_sizep;
1294 struct reloc_queue *queue;
1296 if (addend + 0x80 < 0x100)
1298 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1299 bfd_put_8 (abfd, addend, p + 1);
1300 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1302 else if (addend + 0x8000 < 0x10000)
1304 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1305 bfd_put_16 (abfd, addend, p + 1);
1306 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1308 else if (addend + 0x800000 < 0x1000000)
1310 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1311 bfd_put_8 (abfd, addend >> 16, p + 1);
1312 bfd_put_16 (abfd, addend, p + 2);
1313 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1317 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1318 bfd_put_32 (abfd, addend, p + 1);
1319 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1324 /* Handle a single function call relocation. */
1326 static unsigned char *
1327 som_reloc_call (abfd, p, subspace_reloc_sizep, bfd_reloc, sym_num, queue)
1330 unsigned int *subspace_reloc_sizep;
1333 struct reloc_queue *queue;
1335 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1336 int rtn_bits = arg_bits & 0x3;
1339 /* You'll never believe all this is necessary to handle relocations
1340 for function calls. Having to compute and pack the argument
1341 relocation bits is the real nightmare.
1343 If you're interested in how this works, just forget it. You really
1344 do not want to know about this braindamage. */
1346 /* First see if this can be done with a "simple" relocation. Simple
1347 relocations have a symbol number < 0x100 and have simple encodings
1348 of argument relocations. */
1350 if (sym_num < 0x100)
1362 case 1 << 8 | 1 << 6:
1363 case 1 << 8 | 1 << 6 | 1:
1366 case 1 << 8 | 1 << 6 | 1 << 4:
1367 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1370 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1371 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1375 /* Not one of the easy encodings. This will have to be
1376 handled by the more complex code below. */
1382 /* Account for the return value too. */
1386 /* Emit a 2 byte relocation. Then see if it can be handled
1387 with a relocation which is already in the relocation queue. */
1388 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1389 bfd_put_8 (abfd, sym_num, p + 1);
1390 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1395 /* If this could not be handled with a simple relocation, then do a hard
1396 one. Hard relocations occur if the symbol number was too high or if
1397 the encoding of argument relocation bits is too complex. */
1400 /* Don't ask about these magic sequences. I took them straight
1401 from gas-1.36 which took them from the a.out man page. */
1403 if ((arg_bits >> 6 & 0xf) == 0xe)
1406 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1407 if ((arg_bits >> 2 & 0xf) == 0xe)
1410 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
1412 /* Output the first two bytes of the relocation. These describe
1413 the length of the relocation and encoding style. */
1414 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1415 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1417 bfd_put_8 (abfd, type, p + 1);
1419 /* Now output the symbol index and see if this bizarre relocation
1420 just happened to be in the relocation queue. */
1421 if (sym_num < 0x100)
1423 bfd_put_8 (abfd, sym_num, p + 2);
1424 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1428 bfd_put_8 (abfd, sym_num >> 16, p + 2);
1429 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
1430 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1436 /* Return the logarithm of X, base 2, considering X unsigned,
1437 if X is a power of 2. Otherwise, returns -1. */
1445 /* Test for 0 or a power of 2. */
1446 if (x == 0 || x != (x & -x))
1449 while ((x >>= 1) != 0)
1454 static bfd_reloc_status_type
1455 hppa_som_reloc (abfd, reloc_entry, symbol_in, data,
1456 input_section, output_bfd, error_message)
1457 bfd *abfd ATTRIBUTE_UNUSED;
1458 arelent *reloc_entry;
1459 asymbol *symbol_in ATTRIBUTE_UNUSED;
1460 PTR data ATTRIBUTE_UNUSED;
1461 asection *input_section;
1463 char **error_message ATTRIBUTE_UNUSED;
1467 reloc_entry->address += input_section->output_offset;
1468 return bfd_reloc_ok;
1470 return bfd_reloc_ok;
1473 /* Given a generic HPPA relocation type, the instruction format,
1474 and a field selector, return one or more appropriate SOM relocations. */
1477 hppa_som_gen_reloc_type (abfd, base_type, format, field, sym_diff, sym)
1481 enum hppa_reloc_field_selector_type_alt field;
1485 int *final_type, **final_types;
1487 final_types = (int **) bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1488 final_type = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1489 if (!final_types || !final_type)
1492 /* The field selector may require additional relocations to be
1493 generated. It's impossible to know at this moment if additional
1494 relocations will be needed, so we make them. The code to actually
1495 write the relocation/fixup stream is responsible for removing
1496 any redundant relocations. */
1503 final_types[0] = final_type;
1504 final_types[1] = NULL;
1505 final_types[2] = NULL;
1506 *final_type = base_type;
1512 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1513 if (!final_types[0])
1515 if (field == e_tsel)
1516 *final_types[0] = R_FSEL;
1517 else if (field == e_ltsel)
1518 *final_types[0] = R_LSEL;
1520 *final_types[0] = R_RSEL;
1521 final_types[1] = final_type;
1522 final_types[2] = NULL;
1523 *final_type = base_type;
1528 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1529 if (!final_types[0])
1531 *final_types[0] = R_S_MODE;
1532 final_types[1] = final_type;
1533 final_types[2] = NULL;
1534 *final_type = base_type;
1539 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1540 if (!final_types[0])
1542 *final_types[0] = R_N_MODE;
1543 final_types[1] = final_type;
1544 final_types[2] = NULL;
1545 *final_type = base_type;
1550 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1551 if (!final_types[0])
1553 *final_types[0] = R_D_MODE;
1554 final_types[1] = final_type;
1555 final_types[2] = NULL;
1556 *final_type = base_type;
1561 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1562 if (!final_types[0])
1564 *final_types[0] = R_R_MODE;
1565 final_types[1] = final_type;
1566 final_types[2] = NULL;
1567 *final_type = base_type;
1571 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1572 if (!final_types[0])
1574 *final_types[0] = R_N1SEL;
1575 final_types[1] = final_type;
1576 final_types[2] = NULL;
1577 *final_type = base_type;
1582 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1583 if (!final_types[0])
1585 *final_types[0] = R_N0SEL;
1586 final_types[1] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1587 if (!final_types[1])
1589 if (field == e_nlsel)
1590 *final_types[1] = R_N_MODE;
1592 *final_types[1] = R_R_MODE;
1593 final_types[2] = final_type;
1594 final_types[3] = NULL;
1595 *final_type = base_type;
1598 /* FIXME: These two field selectors are not currently supported. */
1607 /* The difference of two symbols needs *very* special handling. */
1610 bfd_size_type amt = sizeof (int);
1611 final_types[0] = (int *) bfd_alloc (abfd, amt);
1612 final_types[1] = (int *) bfd_alloc (abfd, amt);
1613 final_types[2] = (int *) bfd_alloc (abfd, amt);
1614 final_types[3] = (int *) bfd_alloc (abfd, amt);
1615 if (!final_types[0] || !final_types[1] || !final_types[2])
1617 if (field == e_fsel)
1618 *final_types[0] = R_FSEL;
1619 else if (field == e_rsel)
1620 *final_types[0] = R_RSEL;
1621 else if (field == e_lsel)
1622 *final_types[0] = R_LSEL;
1623 *final_types[1] = R_COMP2;
1624 *final_types[2] = R_COMP2;
1625 *final_types[3] = R_COMP1;
1626 final_types[4] = final_type;
1628 *final_types[4] = R_DATA_EXPR;
1630 *final_types[4] = R_CODE_EXPR;
1631 final_types[5] = NULL;
1634 /* PLABELs get their own relocation type. */
1635 else if (field == e_psel
1637 || field == e_rpsel)
1639 /* A PLABEL relocation that has a size of 32 bits must
1640 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1642 *final_type = R_DATA_PLABEL;
1644 *final_type = R_CODE_PLABEL;
1647 else if (field == e_tsel
1649 || field == e_rtsel)
1650 *final_type = R_DLT_REL;
1651 /* A relocation in the data space is always a full 32bits. */
1652 else if (format == 32)
1654 *final_type = R_DATA_ONE_SYMBOL;
1656 /* If there's no SOM symbol type associated with this BFD
1657 symbol, then set the symbol type to ST_DATA.
1659 Only do this if the type is going to default later when
1660 we write the object file.
1662 This is done so that the linker never encounters an
1663 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1665 This allows the compiler to generate exception handling
1668 Note that one day we may need to also emit BEGIN_BRTAB and
1669 END_BRTAB to prevent the linker from optimizing away insns
1670 in exception handling regions. */
1671 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1672 && (sym->flags & BSF_SECTION_SYM) == 0
1673 && (sym->flags & BSF_FUNCTION) == 0
1674 && ! bfd_is_com_section (sym->section))
1675 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1680 /* More PLABEL special cases. */
1683 || field == e_rpsel)
1684 *final_type = R_DATA_PLABEL;
1687 case R_HPPA_COMPLEX:
1688 /* The difference of two symbols needs *very* special handling. */
1691 bfd_size_type amt = sizeof (int);
1692 final_types[0] = (int *) bfd_alloc (abfd, amt);
1693 final_types[1] = (int *) bfd_alloc (abfd, amt);
1694 final_types[2] = (int *) bfd_alloc (abfd, amt);
1695 final_types[3] = (int *) bfd_alloc (abfd, amt);
1696 if (!final_types[0] || !final_types[1] || !final_types[2])
1698 if (field == e_fsel)
1699 *final_types[0] = R_FSEL;
1700 else if (field == e_rsel)
1701 *final_types[0] = R_RSEL;
1702 else if (field == e_lsel)
1703 *final_types[0] = R_LSEL;
1704 *final_types[1] = R_COMP2;
1705 *final_types[2] = R_COMP2;
1706 *final_types[3] = R_COMP1;
1707 final_types[4] = final_type;
1709 *final_types[4] = R_DATA_EXPR;
1711 *final_types[4] = R_CODE_EXPR;
1712 final_types[5] = NULL;
1719 case R_HPPA_ABS_CALL:
1720 /* Right now we can default all these. */
1723 case R_HPPA_PCREL_CALL:
1725 #ifndef NO_PCREL_MODES
1726 /* If we have short and long pcrel modes, then generate the proper
1727 mode selector, then the pcrel relocation. Redundant selectors
1728 will be eliminated as the relocs are sized and emitted. */
1729 bfd_size_type amt = sizeof (int);
1730 final_types[0] = (int *) bfd_alloc (abfd, amt);
1731 if (!final_types[0])
1734 *final_types[0] = R_SHORT_PCREL_MODE;
1736 *final_types[0] = R_LONG_PCREL_MODE;
1737 final_types[1] = final_type;
1738 final_types[2] = NULL;
1739 *final_type = base_type;
1747 /* Return the address of the correct entry in the PA SOM relocation
1750 static reloc_howto_type *
1751 som_bfd_reloc_type_lookup (abfd, code)
1752 bfd *abfd ATTRIBUTE_UNUSED;
1753 bfd_reloc_code_real_type code;
1755 if ((int) code < (int) R_NO_RELOCATION + 255)
1757 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1758 return &som_hppa_howto_table[(int) code];
1761 return (reloc_howto_type *) 0;
1764 /* Perform some initialization for an object. Save results of this
1765 initialization in the BFD. */
1767 static const bfd_target *
1768 som_object_setup (abfd, file_hdrp, aux_hdrp, current_offset)
1770 struct header *file_hdrp;
1771 struct som_exec_auxhdr *aux_hdrp;
1772 unsigned long current_offset;
1777 /* som_mkobject will set bfd_error if som_mkobject fails. */
1778 if (! som_mkobject (abfd))
1781 /* Set BFD flags based on what information is available in the SOM. */
1782 abfd->flags = BFD_NO_FLAGS;
1783 if (file_hdrp->symbol_total)
1784 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1786 switch (file_hdrp->a_magic)
1789 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1792 abfd->flags |= (WP_TEXT | EXEC_P);
1795 abfd->flags |= (EXEC_P);
1798 abfd->flags |= HAS_RELOC;
1806 abfd->flags |= DYNAMIC;
1813 /* Allocate space to hold the saved exec header information. */
1814 obj_som_exec_data (abfd) = (struct som_exec_data *)
1815 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
1816 if (obj_som_exec_data (abfd) == NULL)
1819 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
1821 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
1822 apparently the latest HPUX linker is using NEW_VERSION_ID now.
1824 It's about time, OSF has used the new id since at least 1992;
1825 HPUX didn't start till nearly 1995!.
1827 The new approach examines the entry field. If it's zero or not 4
1828 byte aligned then it's not a proper code address and we guess it's
1829 really the executable flags. */
1831 for (section = abfd->sections; section; section = section->next)
1835 if ((section->flags & SEC_CODE) == 0)
1837 entry = aux_hdrp->exec_entry;
1838 if (entry >= section->vma
1839 && entry < section->vma + section->size)
1842 if (aux_hdrp->exec_entry == 0
1843 || (aux_hdrp->exec_entry & 0x3) != 0
1846 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
1847 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
1851 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
1852 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
1855 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
1857 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
1858 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
1860 /* Initialize the saved symbol table and string table to NULL.
1861 Save important offsets and sizes from the SOM header into
1863 obj_som_stringtab (abfd) = (char *) NULL;
1864 obj_som_symtab (abfd) = (som_symbol_type *) NULL;
1865 obj_som_sorted_syms (abfd) = NULL;
1866 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
1867 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
1868 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
1870 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
1872 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
1877 /* Convert all of the space and subspace info into BFD sections. Each space
1878 contains a number of subspaces, which in turn describe the mapping between
1879 regions of the exec file, and the address space that the program runs in.
1880 BFD sections which correspond to spaces will overlap the sections for the
1881 associated subspaces. */
1884 setup_sections (abfd, file_hdr, current_offset)
1886 struct header *file_hdr;
1887 unsigned long current_offset;
1889 char *space_strings;
1890 unsigned int space_index, i;
1891 unsigned int total_subspaces = 0;
1892 asection **subspace_sections = NULL;
1896 /* First, read in space names. */
1898 amt = file_hdr->space_strings_size;
1899 space_strings = bfd_malloc (amt);
1900 if (!space_strings && amt != 0)
1903 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
1906 if (bfd_bread (space_strings, amt, abfd) != amt)
1909 /* Loop over all of the space dictionaries, building up sections. */
1910 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
1912 struct space_dictionary_record space;
1913 struct som_subspace_dictionary_record subspace, save_subspace;
1914 unsigned int subspace_index;
1915 asection *space_asect;
1916 bfd_size_type space_size = 0;
1919 /* Read the space dictionary element. */
1921 (current_offset + file_hdr->space_location
1922 + space_index * sizeof space),
1926 if (bfd_bread (&space, amt, abfd) != amt)
1929 /* Setup the space name string. */
1930 space.name.n_name = space.name.n_strx + space_strings;
1932 /* Make a section out of it. */
1933 amt = strlen (space.name.n_name) + 1;
1934 newname = bfd_alloc (abfd, amt);
1937 strcpy (newname, space.name.n_name);
1939 space_asect = bfd_make_section_anyway (abfd, newname);
1943 if (space.is_loadable == 0)
1944 space_asect->flags |= SEC_DEBUGGING;
1946 /* Set up all the attributes for the space. */
1947 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
1948 space.is_private, space.sort_key,
1949 space.space_number))
1952 /* If the space has no subspaces, then we're done. */
1953 if (space.subspace_quantity == 0)
1956 /* Now, read in the first subspace for this space. */
1958 (current_offset + file_hdr->subspace_location
1959 + space.subspace_index * sizeof subspace),
1962 amt = sizeof subspace;
1963 if (bfd_bread (&subspace, amt, abfd) != amt)
1965 /* Seek back to the start of the subspaces for loop below. */
1967 (current_offset + file_hdr->subspace_location
1968 + space.subspace_index * sizeof subspace),
1972 /* Setup the start address and file loc from the first subspace
1974 space_asect->vma = subspace.subspace_start;
1975 space_asect->filepos = subspace.file_loc_init_value + current_offset;
1976 space_asect->alignment_power = exact_log2 (subspace.alignment);
1977 if (space_asect->alignment_power == (unsigned) -1)
1980 /* Initialize save_subspace so we can reliably determine if this
1981 loop placed any useful values into it. */
1982 memset (&save_subspace, 0, sizeof (save_subspace));
1984 /* Loop over the rest of the subspaces, building up more sections. */
1985 for (subspace_index = 0; subspace_index < space.subspace_quantity;
1988 asection *subspace_asect;
1990 /* Read in the next subspace. */
1991 amt = sizeof subspace;
1992 if (bfd_bread (&subspace, amt, abfd) != amt)
1995 /* Setup the subspace name string. */
1996 subspace.name.n_name = subspace.name.n_strx + space_strings;
1998 amt = strlen (subspace.name.n_name) + 1;
1999 newname = bfd_alloc (abfd, amt);
2002 strcpy (newname, subspace.name.n_name);
2004 /* Make a section out of this subspace. */
2005 subspace_asect = bfd_make_section_anyway (abfd, newname);
2006 if (!subspace_asect)
2009 /* Store private information about the section. */
2010 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
2011 subspace.access_control_bits,
2016 subspace.dup_common))
2019 /* Keep an easy mapping between subspaces and sections.
2020 Note we do not necessarily read the subspaces in the
2021 same order in which they appear in the object file.
2023 So to make the target index come out correctly, we
2024 store the location of the subspace header in target
2025 index, then sort using the location of the subspace
2026 header as the key. Then we can assign correct
2027 subspace indices. */
2029 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2031 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2032 by the access_control_bits in the subspace header. */
2033 switch (subspace.access_control_bits >> 4)
2035 /* Readonly data. */
2037 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2042 subspace_asect->flags |= SEC_DATA;
2045 /* Readonly code and the gateways.
2046 Gateways have other attributes which do not map
2047 into anything BFD knows about. */
2053 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2056 /* dynamic (writable) code. */
2058 subspace_asect->flags |= SEC_CODE;
2062 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
2063 subspace_asect->flags |= SEC_LINK_ONCE;
2065 if (subspace.subspace_length > 0)
2066 subspace_asect->flags |= SEC_HAS_CONTENTS;
2068 if (subspace.is_loadable)
2069 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2071 subspace_asect->flags |= SEC_DEBUGGING;
2073 if (subspace.code_only)
2074 subspace_asect->flags |= SEC_CODE;
2076 /* Both file_loc_init_value and initialization_length will
2077 be zero for a BSS like subspace. */
2078 if (subspace.file_loc_init_value == 0
2079 && subspace.initialization_length == 0)
2080 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2082 /* This subspace has relocations.
2083 The fixup_request_quantity is a byte count for the number of
2084 entries in the relocation stream; it is not the actual number
2085 of relocations in the subspace. */
2086 if (subspace.fixup_request_quantity != 0)
2088 subspace_asect->flags |= SEC_RELOC;
2089 subspace_asect->rel_filepos = subspace.fixup_request_index;
2090 som_section_data (subspace_asect)->reloc_size
2091 = subspace.fixup_request_quantity;
2092 /* We can not determine this yet. When we read in the
2093 relocation table the correct value will be filled in. */
2094 subspace_asect->reloc_count = (unsigned) -1;
2097 /* Update save_subspace if appropriate. */
2098 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2099 save_subspace = subspace;
2101 subspace_asect->vma = subspace.subspace_start;
2102 subspace_asect->size = subspace.subspace_length;
2103 subspace_asect->filepos = (subspace.file_loc_init_value
2105 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
2106 if (subspace_asect->alignment_power == (unsigned) -1)
2109 /* Keep track of the accumulated sizes of the sections. */
2110 space_size += subspace.subspace_length;
2113 /* This can happen for a .o which defines symbols in otherwise
2115 if (!save_subspace.file_loc_init_value)
2116 space_asect->size = 0;
2119 if (file_hdr->a_magic != RELOC_MAGIC)
2121 /* Setup the size for the space section based upon the info
2122 in the last subspace of the space. */
2123 space_asect->size = (save_subspace.subspace_start
2125 + save_subspace.subspace_length);
2129 /* The subspace_start field is not initialised in relocatable
2130 only objects, so it cannot be used for length calculations.
2131 Instead we use the space_size value which we have been
2132 accumulating. This isn't an accurate estimate since it
2133 ignores alignment and ordering issues. */
2134 space_asect->size = space_size;
2138 /* Now that we've read in all the subspace records, we need to assign
2139 a target index to each subspace. */
2140 amt = total_subspaces;
2141 amt *= sizeof (asection *);
2142 subspace_sections = (asection **) bfd_malloc (amt);
2143 if (subspace_sections == NULL)
2146 for (i = 0, section = abfd->sections; section; section = section->next)
2148 if (!som_is_subspace (section))
2151 subspace_sections[i] = section;
2154 qsort (subspace_sections, total_subspaces,
2155 sizeof (asection *), compare_subspaces);
2157 /* subspace_sections is now sorted in the order in which the subspaces
2158 appear in the object file. Assign an index to each one now. */
2159 for (i = 0; i < total_subspaces; i++)
2160 subspace_sections[i]->target_index = i;
2162 if (space_strings != NULL)
2163 free (space_strings);
2165 if (subspace_sections != NULL)
2166 free (subspace_sections);
2171 if (space_strings != NULL)
2172 free (space_strings);
2174 if (subspace_sections != NULL)
2175 free (subspace_sections);
2179 /* Read in a SOM object and make it into a BFD. */
2181 static const bfd_target *
2185 struct header file_hdr;
2186 struct som_exec_auxhdr aux_hdr;
2187 unsigned long current_offset = 0;
2188 struct lst_header lst_header;
2189 struct som_entry som_entry;
2191 #define ENTRY_SIZE sizeof (struct som_entry)
2193 amt = FILE_HDR_SIZE;
2194 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2196 if (bfd_get_error () != bfd_error_system_call)
2197 bfd_set_error (bfd_error_wrong_format);
2201 if (!_PA_RISC_ID (file_hdr.system_id))
2203 bfd_set_error (bfd_error_wrong_format);
2207 switch (file_hdr.a_magic)
2219 #ifdef SHARED_MAGIC_CNX
2220 case SHARED_MAGIC_CNX:
2226 /* Read the lst header and determine where the SOM directory begins. */
2228 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2230 if (bfd_get_error () != bfd_error_system_call)
2231 bfd_set_error (bfd_error_wrong_format);
2236 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
2238 if (bfd_get_error () != bfd_error_system_call)
2239 bfd_set_error (bfd_error_wrong_format);
2243 /* Position to and read the first directory entry. */
2245 if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0)
2247 if (bfd_get_error () != bfd_error_system_call)
2248 bfd_set_error (bfd_error_wrong_format);
2253 if (bfd_bread ((PTR) &som_entry, amt, abfd) != amt)
2255 if (bfd_get_error () != bfd_error_system_call)
2256 bfd_set_error (bfd_error_wrong_format);
2260 /* Now position to the first SOM. */
2262 if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0)
2264 if (bfd_get_error () != bfd_error_system_call)
2265 bfd_set_error (bfd_error_wrong_format);
2269 current_offset = som_entry.location;
2271 /* And finally, re-read the som header. */
2272 amt = FILE_HDR_SIZE;
2273 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2275 if (bfd_get_error () != bfd_error_system_call)
2276 bfd_set_error (bfd_error_wrong_format);
2284 bfd_set_error (bfd_error_wrong_format);
2288 if (file_hdr.version_id != VERSION_ID
2289 && file_hdr.version_id != NEW_VERSION_ID)
2291 bfd_set_error (bfd_error_wrong_format);
2295 /* If the aux_header_size field in the file header is zero, then this
2296 object is an incomplete executable (a .o file). Do not try to read
2297 a non-existant auxiliary header. */
2298 memset (&aux_hdr, 0, sizeof (struct som_exec_auxhdr));
2299 if (file_hdr.aux_header_size != 0)
2302 if (bfd_bread ((PTR) &aux_hdr, amt, abfd) != amt)
2304 if (bfd_get_error () != bfd_error_system_call)
2305 bfd_set_error (bfd_error_wrong_format);
2310 if (!setup_sections (abfd, &file_hdr, current_offset))
2312 /* setup_sections does not bubble up a bfd error code. */
2313 bfd_set_error (bfd_error_bad_value);
2317 /* This appears to be a valid SOM object. Do some initialization. */
2318 return som_object_setup (abfd, &file_hdr, &aux_hdr, current_offset);
2321 /* Create a SOM object. */
2327 /* Allocate memory to hold backend information. */
2328 abfd->tdata.som_data = (struct som_data_struct *)
2329 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2330 if (abfd->tdata.som_data == NULL)
2335 /* Initialize some information in the file header. This routine makes
2336 not attempt at doing the right thing for a full executable; it
2337 is only meant to handle relocatable objects. */
2340 som_prep_headers (abfd)
2343 struct header *file_hdr;
2345 bfd_size_type amt = sizeof (struct header);
2347 /* Make and attach a file header to the BFD. */
2348 file_hdr = (struct header *) bfd_zalloc (abfd, amt);
2349 if (file_hdr == NULL)
2351 obj_som_file_hdr (abfd) = file_hdr;
2353 if (abfd->flags & (EXEC_P | DYNAMIC))
2355 /* Make and attach an exec header to the BFD. */
2356 amt = sizeof (struct som_exec_auxhdr);
2357 obj_som_exec_hdr (abfd) =
2358 (struct som_exec_auxhdr *) bfd_zalloc (abfd, amt);
2359 if (obj_som_exec_hdr (abfd) == NULL)
2362 if (abfd->flags & D_PAGED)
2363 file_hdr->a_magic = DEMAND_MAGIC;
2364 else if (abfd->flags & WP_TEXT)
2365 file_hdr->a_magic = SHARE_MAGIC;
2367 else if (abfd->flags & DYNAMIC)
2368 file_hdr->a_magic = SHL_MAGIC;
2371 file_hdr->a_magic = EXEC_MAGIC;
2374 file_hdr->a_magic = RELOC_MAGIC;
2376 /* These fields are optional, and embedding timestamps is not always
2377 a wise thing to do, it makes comparing objects during a multi-stage
2378 bootstrap difficult. */
2379 file_hdr->file_time.secs = 0;
2380 file_hdr->file_time.nanosecs = 0;
2382 file_hdr->entry_space = 0;
2383 file_hdr->entry_subspace = 0;
2384 file_hdr->entry_offset = 0;
2385 file_hdr->presumed_dp = 0;
2387 /* Now iterate over the sections translating information from
2388 BFD sections to SOM spaces/subspaces. */
2390 for (section = abfd->sections; section != NULL; section = section->next)
2392 /* Ignore anything which has not been marked as a space or
2394 if (!som_is_space (section) && !som_is_subspace (section))
2397 if (som_is_space (section))
2399 /* Allocate space for the space dictionary. */
2400 amt = sizeof (struct space_dictionary_record);
2401 som_section_data (section)->space_dict =
2402 (struct space_dictionary_record *) bfd_zalloc (abfd, amt);
2403 if (som_section_data (section)->space_dict == NULL)
2405 /* Set space attributes. Note most attributes of SOM spaces
2406 are set based on the subspaces it contains. */
2407 som_section_data (section)->space_dict->loader_fix_index = -1;
2408 som_section_data (section)->space_dict->init_pointer_index = -1;
2410 /* Set more attributes that were stuffed away in private data. */
2411 som_section_data (section)->space_dict->sort_key =
2412 som_section_data (section)->copy_data->sort_key;
2413 som_section_data (section)->space_dict->is_defined =
2414 som_section_data (section)->copy_data->is_defined;
2415 som_section_data (section)->space_dict->is_private =
2416 som_section_data (section)->copy_data->is_private;
2417 som_section_data (section)->space_dict->space_number =
2418 som_section_data (section)->copy_data->space_number;
2422 /* Allocate space for the subspace dictionary. */
2423 amt = sizeof (struct som_subspace_dictionary_record);
2424 som_section_data (section)->subspace_dict =
2425 (struct som_subspace_dictionary_record *) bfd_zalloc (abfd, amt);
2426 if (som_section_data (section)->subspace_dict == NULL)
2429 /* Set subspace attributes. Basic stuff is done here, additional
2430 attributes are filled in later as more information becomes
2432 if (section->flags & SEC_ALLOC)
2433 som_section_data (section)->subspace_dict->is_loadable = 1;
2435 if (section->flags & SEC_CODE)
2436 som_section_data (section)->subspace_dict->code_only = 1;
2438 som_section_data (section)->subspace_dict->subspace_start =
2440 som_section_data (section)->subspace_dict->subspace_length =
2442 som_section_data (section)->subspace_dict->initialization_length =
2444 som_section_data (section)->subspace_dict->alignment =
2445 1 << section->alignment_power;
2447 /* Set more attributes that were stuffed away in private data. */
2448 som_section_data (section)->subspace_dict->sort_key =
2449 som_section_data (section)->copy_data->sort_key;
2450 som_section_data (section)->subspace_dict->access_control_bits =
2451 som_section_data (section)->copy_data->access_control_bits;
2452 som_section_data (section)->subspace_dict->quadrant =
2453 som_section_data (section)->copy_data->quadrant;
2454 som_section_data (section)->subspace_dict->is_comdat =
2455 som_section_data (section)->copy_data->is_comdat;
2456 som_section_data (section)->subspace_dict->is_common =
2457 som_section_data (section)->copy_data->is_common;
2458 som_section_data (section)->subspace_dict->dup_common =
2459 som_section_data (section)->copy_data->dup_common;
2465 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2468 som_is_space (section)
2471 /* If no copy data is available, then it's neither a space nor a
2473 if (som_section_data (section)->copy_data == NULL)
2476 /* If the containing space isn't the same as the given section,
2477 then this isn't a space. */
2478 if (som_section_data (section)->copy_data->container != section
2479 && (som_section_data (section)->copy_data->container->output_section
2483 /* OK. Must be a space. */
2487 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2490 som_is_subspace (section)
2493 /* If no copy data is available, then it's neither a space nor a
2495 if (som_section_data (section)->copy_data == NULL)
2498 /* If the containing space is the same as the given section,
2499 then this isn't a subspace. */
2500 if (som_section_data (section)->copy_data->container == section
2501 || (som_section_data (section)->copy_data->container->output_section
2505 /* OK. Must be a subspace. */
2509 /* Return TRUE if the given space contains the given subspace. It
2510 is safe to assume space really is a space, and subspace really
2514 som_is_container (space, subspace)
2515 asection *space, *subspace;
2517 return (som_section_data (subspace)->copy_data->container == space
2518 || (som_section_data (subspace)->copy_data->container->output_section
2522 /* Count and return the number of spaces attached to the given BFD. */
2524 static unsigned long
2525 som_count_spaces (abfd)
2531 for (section = abfd->sections; section != NULL; section = section->next)
2532 count += som_is_space (section);
2537 /* Count the number of subspaces attached to the given BFD. */
2539 static unsigned long
2540 som_count_subspaces (abfd)
2546 for (section = abfd->sections; section != NULL; section = section->next)
2547 count += som_is_subspace (section);
2552 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2554 We desire symbols to be ordered starting with the symbol with the
2555 highest relocation count down to the symbol with the lowest relocation
2556 count. Doing so compacts the relocation stream. */
2559 compare_syms (arg1, arg2)
2564 asymbol **sym1 = (asymbol **) arg1;
2565 asymbol **sym2 = (asymbol **) arg2;
2566 unsigned int count1, count2;
2568 /* Get relocation count for each symbol. Note that the count
2569 is stored in the udata pointer for section symbols! */
2570 if ((*sym1)->flags & BSF_SECTION_SYM)
2571 count1 = (*sym1)->udata.i;
2573 count1 = som_symbol_data (*sym1)->reloc_count;
2575 if ((*sym2)->flags & BSF_SECTION_SYM)
2576 count2 = (*sym2)->udata.i;
2578 count2 = som_symbol_data (*sym2)->reloc_count;
2580 /* Return the appropriate value. */
2581 if (count1 < count2)
2583 else if (count1 > count2)
2588 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2592 compare_subspaces (arg1, arg2)
2597 asection **subspace1 = (asection **) arg1;
2598 asection **subspace2 = (asection **) arg2;
2600 if ((*subspace1)->target_index < (*subspace2)->target_index)
2602 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2608 /* Perform various work in preparation for emitting the fixup stream. */
2611 som_prep_for_fixups (abfd, syms, num_syms)
2614 unsigned long num_syms;
2618 asymbol **sorted_syms;
2621 /* Most SOM relocations involving a symbol have a length which is
2622 dependent on the index of the symbol. So symbols which are
2623 used often in relocations should have a small index. */
2625 /* First initialize the counters for each symbol. */
2626 for (i = 0; i < num_syms; i++)
2628 /* Handle a section symbol; these have no pointers back to the
2629 SOM symbol info. So we just use the udata field to hold the
2630 relocation count. */
2631 if (som_symbol_data (syms[i]) == NULL
2632 || syms[i]->flags & BSF_SECTION_SYM)
2634 syms[i]->flags |= BSF_SECTION_SYM;
2635 syms[i]->udata.i = 0;
2638 som_symbol_data (syms[i])->reloc_count = 0;
2641 /* Now that the counters are initialized, make a weighted count
2642 of how often a given symbol is used in a relocation. */
2643 for (section = abfd->sections; section != NULL; section = section->next)
2647 /* Does this section have any relocations? */
2648 if ((int) section->reloc_count <= 0)
2651 /* Walk through each relocation for this section. */
2652 for (j = 1; j < (int) section->reloc_count; j++)
2654 arelent *reloc = section->orelocation[j];
2657 /* A relocation against a symbol in the *ABS* section really
2658 does not have a symbol. Likewise if the symbol isn't associated
2659 with any section. */
2660 if (reloc->sym_ptr_ptr == NULL
2661 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2664 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2665 and R_CODE_ONE_SYMBOL relocations to come first. These
2666 two relocations have single byte versions if the symbol
2667 index is very small. */
2668 if (reloc->howto->type == R_DP_RELATIVE
2669 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2674 /* Handle section symbols by storing the count in the udata
2675 field. It will not be used and the count is very important
2676 for these symbols. */
2677 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2679 (*reloc->sym_ptr_ptr)->udata.i =
2680 (*reloc->sym_ptr_ptr)->udata.i + scale;
2684 /* A normal symbol. Increment the count. */
2685 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2689 /* Sort a copy of the symbol table, rather than the canonical
2690 output symbol table. */
2692 amt *= sizeof (asymbol *);
2693 sorted_syms = (asymbol **) bfd_zalloc (abfd, amt);
2694 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2695 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2696 obj_som_sorted_syms (abfd) = sorted_syms;
2698 /* Compute the symbol indexes, they will be needed by the relocation
2700 for (i = 0; i < num_syms; i++)
2702 /* A section symbol. Again, there is no pointer to backend symbol
2703 information, so we reuse the udata field again. */
2704 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2705 sorted_syms[i]->udata.i = i;
2707 som_symbol_data (sorted_syms[i])->index = i;
2712 som_write_fixups (abfd, current_offset, total_reloc_sizep)
2714 unsigned long current_offset;
2715 unsigned int *total_reloc_sizep;
2718 /* Chunk of memory that we can use as buffer space, then throw
2720 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2722 unsigned int total_reloc_size = 0;
2723 unsigned int subspace_reloc_size = 0;
2724 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2725 asection *section = abfd->sections;
2728 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2731 /* All the fixups for a particular subspace are emitted in a single
2732 stream. All the subspaces for a particular space are emitted
2735 So, to get all the locations correct one must iterate through all the
2736 spaces, for each space iterate through its subspaces and output a
2738 for (i = 0; i < num_spaces; i++)
2740 asection *subsection;
2743 while (!som_is_space (section))
2744 section = section->next;
2746 /* Now iterate through each of its subspaces. */
2747 for (subsection = abfd->sections;
2749 subsection = subsection->next)
2752 unsigned int current_rounding_mode;
2753 #ifndef NO_PCREL_MODES
2754 unsigned int current_call_mode;
2757 /* Find a subspace of this space. */
2758 if (!som_is_subspace (subsection)
2759 || !som_is_container (section, subsection))
2762 /* If this subspace does not have real data, then we are
2763 finished with it. */
2764 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2766 som_section_data (subsection)->subspace_dict->fixup_request_index
2771 /* This subspace has some relocations. Put the relocation stream
2772 index into the subspace record. */
2773 som_section_data (subsection)->subspace_dict->fixup_request_index
2776 /* To make life easier start over with a clean slate for
2777 each subspace. Seek to the start of the relocation stream
2778 for this subspace in preparation for writing out its fixup
2780 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2783 /* Buffer space has already been allocated. Just perform some
2784 initialization here. */
2786 subspace_reloc_size = 0;
2788 som_initialize_reloc_queue (reloc_queue);
2789 current_rounding_mode = R_N_MODE;
2790 #ifndef NO_PCREL_MODES
2791 current_call_mode = R_SHORT_PCREL_MODE;
2794 /* Translate each BFD relocation into one or more SOM
2796 for (j = 0; j < subsection->reloc_count; j++)
2798 arelent *bfd_reloc = subsection->orelocation[j];
2802 /* Get the symbol number. Remember it's stored in a
2803 special place for section symbols. */
2804 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2805 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2807 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2809 /* If there is not enough room for the next couple relocations,
2810 then dump the current buffer contents now. Also reinitialize
2811 the relocation queue.
2813 No single BFD relocation could ever translate into more
2814 than 100 bytes of SOM relocations (20bytes is probably the
2815 upper limit, but leave lots of space for growth). */
2816 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2818 amt = p - tmp_space;
2819 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
2823 som_initialize_reloc_queue (reloc_queue);
2826 /* Emit R_NO_RELOCATION fixups to map any bytes which were
2828 skip = bfd_reloc->address - reloc_offset;
2829 p = som_reloc_skip (abfd, skip, p,
2830 &subspace_reloc_size, reloc_queue);
2832 /* Update reloc_offset for the next iteration.
2834 Many relocations do not consume input bytes. They
2835 are markers, or set state necessary to perform some
2836 later relocation. */
2837 switch (bfd_reloc->howto->type)
2857 #ifndef NO_PCREL_MODES
2858 case R_SHORT_PCREL_MODE:
2859 case R_LONG_PCREL_MODE:
2861 reloc_offset = bfd_reloc->address;
2865 reloc_offset = bfd_reloc->address + 4;
2869 /* Now the actual relocation we care about. */
2870 switch (bfd_reloc->howto->type)
2874 p = som_reloc_call (abfd, p, &subspace_reloc_size,
2875 bfd_reloc, sym_num, reloc_queue);
2878 case R_CODE_ONE_SYMBOL:
2880 /* Account for any addend. */
2881 if (bfd_reloc->addend)
2882 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2883 &subspace_reloc_size, reloc_queue);
2887 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
2888 subspace_reloc_size += 1;
2891 else if (sym_num < 0x100)
2893 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
2894 bfd_put_8 (abfd, sym_num, p + 1);
2895 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2898 else if (sym_num < 0x10000000)
2900 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
2901 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2902 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2903 p = try_prev_fixup (abfd, &subspace_reloc_size,
2910 case R_DATA_ONE_SYMBOL:
2914 /* Account for any addend using R_DATA_OVERRIDE. */
2915 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
2916 && bfd_reloc->addend)
2917 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2918 &subspace_reloc_size, reloc_queue);
2920 if (sym_num < 0x100)
2922 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2923 bfd_put_8 (abfd, sym_num, p + 1);
2924 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2927 else if (sym_num < 0x10000000)
2929 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2930 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2931 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2932 p = try_prev_fixup (abfd, &subspace_reloc_size,
2942 arelent *tmp_reloc = NULL;
2943 bfd_put_8 (abfd, R_ENTRY, p);
2945 /* R_ENTRY relocations have 64 bits of associated
2946 data. Unfortunately the addend field of a bfd
2947 relocation is only 32 bits. So, we split up
2948 the 64bit unwind information and store part in
2949 the R_ENTRY relocation, and the rest in the R_EXIT
2951 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
2953 /* Find the next R_EXIT relocation. */
2954 for (tmp = j; tmp < subsection->reloc_count; tmp++)
2956 tmp_reloc = subsection->orelocation[tmp];
2957 if (tmp_reloc->howto->type == R_EXIT)
2961 if (tmp == subsection->reloc_count)
2964 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
2965 p = try_prev_fixup (abfd, &subspace_reloc_size,
2974 /* If this relocation requests the current rounding
2975 mode, then it is redundant. */
2976 if (bfd_reloc->howto->type != current_rounding_mode)
2978 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2979 subspace_reloc_size += 1;
2981 current_rounding_mode = bfd_reloc->howto->type;
2985 #ifndef NO_PCREL_MODES
2986 case R_LONG_PCREL_MODE:
2987 case R_SHORT_PCREL_MODE:
2988 if (bfd_reloc->howto->type != current_call_mode)
2990 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2991 subspace_reloc_size += 1;
2993 current_call_mode = bfd_reloc->howto->type;
3008 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3009 subspace_reloc_size += 1;
3014 /* The end of an exception handling region. The reloc's
3015 addend contains the offset of the exception handling
3017 if (bfd_reloc->addend == 0)
3018 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3019 else if (bfd_reloc->addend < 1024)
3021 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3022 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3023 p = try_prev_fixup (abfd, &subspace_reloc_size,
3028 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3029 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3030 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3031 p = try_prev_fixup (abfd, &subspace_reloc_size,
3037 /* The only time we generate R_COMP1, R_COMP2 and
3038 R_CODE_EXPR relocs is for the difference of two
3039 symbols. Hence we can cheat here. */
3040 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3041 bfd_put_8 (abfd, 0x44, p + 1);
3042 p = try_prev_fixup (abfd, &subspace_reloc_size,
3047 /* The only time we generate R_COMP1, R_COMP2 and
3048 R_CODE_EXPR relocs is for the difference of two
3049 symbols. Hence we can cheat here. */
3050 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3051 bfd_put_8 (abfd, 0x80, p + 1);
3052 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3053 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3054 p = try_prev_fixup (abfd, &subspace_reloc_size,
3060 /* The only time we generate R_COMP1, R_COMP2 and
3061 R_CODE_EXPR relocs is for the difference of two
3062 symbols. Hence we can cheat here. */
3063 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3064 subspace_reloc_size += 1;
3068 /* Put a "R_RESERVED" relocation in the stream if
3069 we hit something we do not understand. The linker
3070 will complain loudly if this ever happens. */
3072 bfd_put_8 (abfd, 0xff, p);
3073 subspace_reloc_size += 1;
3079 /* Last BFD relocation for a subspace has been processed.
3080 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3081 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
3082 p, &subspace_reloc_size, reloc_queue);
3084 /* Scribble out the relocations. */
3085 amt = p - tmp_space;
3086 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
3090 total_reloc_size += subspace_reloc_size;
3091 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3092 = subspace_reloc_size;
3094 section = section->next;
3096 *total_reloc_sizep = total_reloc_size;
3100 /* Write out the space/subspace string table. */
3103 som_write_space_strings (abfd, current_offset, string_sizep)
3105 unsigned long current_offset;
3106 unsigned int *string_sizep;
3108 /* Chunk of memory that we can use as buffer space, then throw
3110 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3111 unsigned char *tmp_space = alloca (tmp_space_size);
3112 unsigned char *p = tmp_space;
3113 unsigned int strings_size = 0;
3117 /* Seek to the start of the space strings in preparation for writing
3119 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3122 /* Walk through all the spaces and subspaces (order is not important)
3123 building up and writing string table entries for their names. */
3124 for (section = abfd->sections; section != NULL; section = section->next)
3128 /* Only work with space/subspaces; avoid any other sections
3129 which might have been made (.text for example). */
3130 if (!som_is_space (section) && !som_is_subspace (section))
3133 /* Get the length of the space/subspace name. */
3134 length = strlen (section->name);
3136 /* If there is not enough room for the next entry, then dump the
3137 current buffer contents now and maybe allocate a larger
3138 buffer. Each entry will take 4 bytes to hold the string
3139 length + the string itself + null terminator. */
3140 if (p - tmp_space + 5 + length > tmp_space_size)
3142 /* Flush buffer before refilling or reallocating. */
3143 amt = p - tmp_space;
3144 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3147 /* Reallocate if now empty buffer still too small. */
3148 if (5 + length > tmp_space_size)
3150 /* Ensure a minimum growth factor to avoid O(n**2) space
3151 consumption for n strings. The optimal minimum
3152 factor seems to be 2, as no other value can guarantee
3153 wasting less than 50% space. (Note that we cannot
3154 deallocate space allocated by `alloca' without
3155 returning from this function.) The same technique is
3156 used a few more times below when a buffer is
3158 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3159 tmp_space = alloca (tmp_space_size);
3162 /* Reset to beginning of the (possibly new) buffer space. */
3166 /* First element in a string table entry is the length of the
3167 string. Alignment issues are already handled. */
3168 bfd_put_32 (abfd, (bfd_vma) length, p);
3172 /* Record the index in the space/subspace records. */
3173 if (som_is_space (section))
3174 som_section_data (section)->space_dict->name.n_strx = strings_size;
3176 som_section_data (section)->subspace_dict->name.n_strx = strings_size;
3178 /* Next comes the string itself + a null terminator. */
3179 strcpy (p, section->name);
3181 strings_size += length + 1;
3183 /* Always align up to the next word boundary. */
3184 while (strings_size % 4)
3186 bfd_put_8 (abfd, 0, p);
3192 /* Done with the space/subspace strings. Write out any information
3193 contained in a partial block. */
3194 amt = p - tmp_space;
3195 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3197 *string_sizep = strings_size;
3201 /* Write out the symbol string table. */
3204 som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep,
3207 unsigned long current_offset;
3209 unsigned int num_syms;
3210 unsigned int *string_sizep;
3211 COMPUNIT *compilation_unit;
3215 /* Chunk of memory that we can use as buffer space, then throw
3217 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3218 unsigned char *tmp_space = alloca (tmp_space_size);
3219 unsigned char *p = tmp_space;
3221 unsigned int strings_size = 0;
3222 unsigned char *comp[4];
3225 /* This gets a bit gruesome because of the compilation unit. The
3226 strings within the compilation unit are part of the symbol
3227 strings, but don't have symbol_dictionary entries. So, manually
3228 write them and update the compilation unit header. On input, the
3229 compilation unit header contains local copies of the strings.
3231 if (compilation_unit)
3233 comp[0] = compilation_unit->name.n_name;
3234 comp[1] = compilation_unit->language_name.n_name;
3235 comp[2] = compilation_unit->product_id.n_name;
3236 comp[3] = compilation_unit->version_id.n_name;
3239 /* Seek to the start of the space strings in preparation for writing
3241 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3244 if (compilation_unit)
3246 for (i = 0; i < 4; i++)
3248 size_t length = strlen (comp[i]);
3250 /* If there is not enough room for the next entry, then dump
3251 the current buffer contents now and maybe allocate a
3253 if (p - tmp_space + 5 + length > tmp_space_size)
3255 /* Flush buffer before refilling or reallocating. */
3256 amt = p - tmp_space;
3257 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3260 /* Reallocate if now empty buffer still too small. */
3261 if (5 + length > tmp_space_size)
3263 /* See alloca above for discussion of new size. */
3264 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3265 tmp_space = alloca (tmp_space_size);
3268 /* Reset to beginning of the (possibly new) buffer
3273 /* First element in a string table entry is the length of
3274 the string. This must always be 4 byte aligned. This is
3275 also an appropriate time to fill in the string index
3276 field in the symbol table entry. */
3277 bfd_put_32 (abfd, (bfd_vma) length, p);
3281 /* Next comes the string itself + a null terminator. */
3282 strcpy (p, comp[i]);
3287 obj_som_compilation_unit (abfd)->name.n_strx = strings_size;
3290 obj_som_compilation_unit (abfd)->language_name.n_strx =
3294 obj_som_compilation_unit (abfd)->product_id.n_strx =
3298 obj_som_compilation_unit (abfd)->version_id.n_strx =
3304 strings_size += length + 1;
3306 /* Always align up to the next word boundary. */
3307 while (strings_size % 4)
3309 bfd_put_8 (abfd, 0, p);
3316 for (i = 0; i < num_syms; i++)
3318 size_t length = strlen (syms[i]->name);
3320 /* If there is not enough room for the next entry, then dump the
3321 current buffer contents now and maybe allocate a larger buffer. */
3322 if (p - tmp_space + 5 + length > tmp_space_size)
3324 /* Flush buffer before refilling or reallocating. */
3325 amt = p - tmp_space;
3326 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3329 /* Reallocate if now empty buffer still too small. */
3330 if (5 + length > tmp_space_size)
3332 /* See alloca above for discussion of new size. */
3333 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3334 tmp_space = alloca (tmp_space_size);
3337 /* Reset to beginning of the (possibly new) buffer space. */
3341 /* First element in a string table entry is the length of the
3342 string. This must always be 4 byte aligned. This is also
3343 an appropriate time to fill in the string index field in the
3344 symbol table entry. */
3345 bfd_put_32 (abfd, (bfd_vma) length, p);
3349 /* Next comes the string itself + a null terminator. */
3350 strcpy (p, syms[i]->name);
3352 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3354 strings_size += length + 1;
3356 /* Always align up to the next word boundary. */
3357 while (strings_size % 4)
3359 bfd_put_8 (abfd, 0, p);
3365 /* Scribble out any partial block. */
3366 amt = p - tmp_space;
3367 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3370 *string_sizep = strings_size;
3374 /* Compute variable information to be placed in the SOM headers,
3375 space/subspace dictionaries, relocation streams, etc. Begin
3376 writing parts of the object file. */
3379 som_begin_writing (abfd)
3382 unsigned long current_offset = 0;
3383 int strings_size = 0;
3384 unsigned long num_spaces, num_subspaces, i;
3386 unsigned int total_subspaces = 0;
3387 struct som_exec_auxhdr *exec_header = NULL;
3389 /* The file header will always be first in an object file,
3390 everything else can be in random locations. To keep things
3391 "simple" BFD will lay out the object file in the manner suggested
3392 by the PRO ABI for PA-RISC Systems. */
3394 /* Before any output can really begin offsets for all the major
3395 portions of the object file must be computed. So, starting
3396 with the initial file header compute (and sometimes write)
3397 each portion of the object file. */
3399 /* Make room for the file header, it's contents are not complete
3400 yet, so it can not be written at this time. */
3401 current_offset += sizeof (struct header);
3403 /* Any auxiliary headers will follow the file header. Right now
3404 we support only the copyright and version headers. */
3405 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3406 obj_som_file_hdr (abfd)->aux_header_size = 0;
3407 if (abfd->flags & (EXEC_P | DYNAMIC))
3409 /* Parts of the exec header will be filled in later, so
3410 delay writing the header itself. Fill in the defaults,
3411 and write it later. */
3412 current_offset += sizeof (struct som_exec_auxhdr);
3413 obj_som_file_hdr (abfd)->aux_header_size
3414 += sizeof (struct som_exec_auxhdr);
3415 exec_header = obj_som_exec_hdr (abfd);
3416 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3417 exec_header->som_auxhdr.length = 40;
3419 if (obj_som_version_hdr (abfd) != NULL)
3423 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3426 /* Write the aux_id structure and the string length. */
3427 len = sizeof (struct aux_id) + sizeof (unsigned int);
3428 obj_som_file_hdr (abfd)->aux_header_size += len;
3429 current_offset += len;
3430 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd), len, abfd) != len)
3433 /* Write the version string. */
3434 len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
3435 obj_som_file_hdr (abfd)->aux_header_size += len;
3436 current_offset += len;
3437 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd)->user_string, len, abfd)
3442 if (obj_som_copyright_hdr (abfd) != NULL)
3446 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3449 /* Write the aux_id structure and the string length. */
3450 len = sizeof (struct aux_id) + sizeof (unsigned int);
3451 obj_som_file_hdr (abfd)->aux_header_size += len;
3452 current_offset += len;
3453 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd), len, abfd) != len)
3456 /* Write the copyright string. */
3457 len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
3458 obj_som_file_hdr (abfd)->aux_header_size += len;
3459 current_offset += len;
3460 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
3465 /* Next comes the initialization pointers; we have no initialization
3466 pointers, so current offset does not change. */
3467 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3468 obj_som_file_hdr (abfd)->init_array_total = 0;
3470 /* Next are the space records. These are fixed length records.
3472 Count the number of spaces to determine how much room is needed
3473 in the object file for the space records.
3475 The names of the spaces are stored in a separate string table,
3476 and the index for each space into the string table is computed
3477 below. Therefore, it is not possible to write the space headers
3479 num_spaces = som_count_spaces (abfd);
3480 obj_som_file_hdr (abfd)->space_location = current_offset;
3481 obj_som_file_hdr (abfd)->space_total = num_spaces;
3482 current_offset += num_spaces * sizeof (struct space_dictionary_record);
3484 /* Next are the subspace records. These are fixed length records.
3486 Count the number of subspaes to determine how much room is needed
3487 in the object file for the subspace records.
3489 A variety if fields in the subspace record are still unknown at
3490 this time (index into string table, fixup stream location/size, etc). */
3491 num_subspaces = som_count_subspaces (abfd);
3492 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3493 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3495 += num_subspaces * sizeof (struct som_subspace_dictionary_record);
3497 /* Next is the string table for the space/subspace names. We will
3498 build and write the string table on the fly. At the same time
3499 we will fill in the space/subspace name index fields. */
3501 /* The string table needs to be aligned on a word boundary. */
3502 if (current_offset % 4)
3503 current_offset += (4 - (current_offset % 4));
3505 /* Mark the offset of the space/subspace string table in the
3507 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3509 /* Scribble out the space strings. */
3510 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3513 /* Record total string table size in the header and update the
3515 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3516 current_offset += strings_size;
3518 /* Next is the compilation unit. */
3519 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3520 obj_som_file_hdr (abfd)->compiler_total = 0;
3521 if (obj_som_compilation_unit (abfd))
3523 obj_som_file_hdr (abfd)->compiler_total = 1;
3524 current_offset += COMPUNITSZ;
3527 /* Now compute the file positions for the loadable subspaces, taking
3528 care to make sure everything stays properly aligned. */
3530 section = abfd->sections;
3531 for (i = 0; i < num_spaces; i++)
3533 asection *subsection;
3535 unsigned int subspace_offset = 0;
3538 while (!som_is_space (section))
3539 section = section->next;
3542 /* Now look for all its subspaces. */
3543 for (subsection = abfd->sections;
3545 subsection = subsection->next)
3548 if (!som_is_subspace (subsection)
3549 || !som_is_container (section, subsection)
3550 || (subsection->flags & SEC_ALLOC) == 0)
3553 /* If this is the first subspace in the space, and we are
3554 building an executable, then take care to make sure all
3555 the alignments are correct and update the exec header. */
3557 && (abfd->flags & (EXEC_P | DYNAMIC)))
3559 /* Demand paged executables have each space aligned to a
3560 page boundary. Sharable executables (write-protected
3561 text) have just the private (aka data & bss) space aligned
3562 to a page boundary. Ugh. Not true for HPUX.
3564 The HPUX kernel requires the text to always be page aligned
3565 within the file regardless of the executable's type. */
3566 if (abfd->flags & (D_PAGED | DYNAMIC)
3567 || (subsection->flags & SEC_CODE)
3568 || ((abfd->flags & WP_TEXT)
3569 && (subsection->flags & SEC_DATA)))
3570 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3572 /* Update the exec header. */
3573 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3575 exec_header->exec_tmem = section->vma;
3576 exec_header->exec_tfile = current_offset;
3578 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3580 exec_header->exec_dmem = section->vma;
3581 exec_header->exec_dfile = current_offset;
3584 /* Keep track of exactly where we are within a particular
3585 space. This is necessary as the braindamaged HPUX
3586 loader will create holes between subspaces *and*
3587 subspace alignments are *NOT* preserved. What a crock. */
3588 subspace_offset = subsection->vma;
3590 /* Only do this for the first subspace within each space. */
3593 else if (abfd->flags & (EXEC_P | DYNAMIC))
3595 /* The braindamaged HPUX loader may have created a hole
3596 between two subspaces. It is *not* sufficient to use
3597 the alignment specifications within the subspaces to
3598 account for these holes -- I've run into at least one
3599 case where the loader left one code subspace unaligned
3600 in a final executable.
3602 To combat this we keep a current offset within each space,
3603 and use the subspace vma fields to detect and preserve
3604 holes. What a crock!
3606 ps. This is not necessary for unloadable space/subspaces. */
3607 current_offset += subsection->vma - subspace_offset;
3608 if (subsection->flags & SEC_CODE)
3609 exec_header->exec_tsize += subsection->vma - subspace_offset;
3611 exec_header->exec_dsize += subsection->vma - subspace_offset;
3612 subspace_offset += subsection->vma - subspace_offset;
3615 subsection->target_index = total_subspaces++;
3616 /* This is real data to be loaded from the file. */
3617 if (subsection->flags & SEC_LOAD)
3619 /* Update the size of the code & data. */
3620 if (abfd->flags & (EXEC_P | DYNAMIC)
3621 && subsection->flags & SEC_CODE)
3622 exec_header->exec_tsize += subsection->size;
3623 else if (abfd->flags & (EXEC_P | DYNAMIC)
3624 && subsection->flags & SEC_DATA)
3625 exec_header->exec_dsize += subsection->size;
3626 som_section_data (subsection)->subspace_dict->file_loc_init_value
3628 subsection->filepos = current_offset;
3629 current_offset += subsection->size;
3630 subspace_offset += subsection->size;
3632 /* Looks like uninitialized data. */
3635 /* Update the size of the bss section. */
3636 if (abfd->flags & (EXEC_P | DYNAMIC))
3637 exec_header->exec_bsize += subsection->size;
3639 som_section_data (subsection)->subspace_dict->file_loc_init_value
3641 som_section_data (subsection)->subspace_dict->
3642 initialization_length = 0;
3645 /* Goto the next section. */
3646 section = section->next;
3649 /* Finally compute the file positions for unloadable subspaces.
3650 If building an executable, start the unloadable stuff on its
3653 if (abfd->flags & (EXEC_P | DYNAMIC))
3654 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3656 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3657 section = abfd->sections;
3658 for (i = 0; i < num_spaces; i++)
3660 asection *subsection;
3663 while (!som_is_space (section))
3664 section = section->next;
3666 if (abfd->flags & (EXEC_P | DYNAMIC))
3667 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3669 /* Now look for all its subspaces. */
3670 for (subsection = abfd->sections;
3672 subsection = subsection->next)
3675 if (!som_is_subspace (subsection)
3676 || !som_is_container (section, subsection)
3677 || (subsection->flags & SEC_ALLOC) != 0)
3680 subsection->target_index = total_subspaces++;
3681 /* This is real data to be loaded from the file. */
3682 if ((subsection->flags & SEC_LOAD) == 0)
3684 som_section_data (subsection)->subspace_dict->file_loc_init_value
3686 subsection->filepos = current_offset;
3687 current_offset += subsection->size;
3689 /* Looks like uninitialized data. */
3692 som_section_data (subsection)->subspace_dict->file_loc_init_value
3694 som_section_data (subsection)->subspace_dict->
3695 initialization_length = subsection->size;
3698 /* Goto the next section. */
3699 section = section->next;
3702 /* If building an executable, then make sure to seek to and write
3703 one byte at the end of the file to make sure any necessary
3704 zeros are filled in. Ugh. */
3705 if (abfd->flags & (EXEC_P | DYNAMIC))
3706 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3707 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3709 if (bfd_bwrite ((PTR) "", (bfd_size_type) 1, abfd) != 1)
3712 obj_som_file_hdr (abfd)->unloadable_sp_size
3713 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3715 /* Loader fixups are not supported in any way shape or form. */
3716 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3717 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3719 /* Done. Store the total size of the SOM so far. */
3720 obj_som_file_hdr (abfd)->som_length = current_offset;
3725 /* Finally, scribble out the various headers to the disk. */
3728 som_finish_writing (abfd)
3731 int num_spaces = som_count_spaces (abfd);
3732 asymbol **syms = bfd_get_outsymbols (abfd);
3733 int i, num_syms, strings_size;
3734 int subspace_index = 0;
3737 unsigned long current_offset;
3738 unsigned int total_reloc_size;
3741 /* We must set up the version identifier here as objcopy/strip copy
3742 private BFD data too late for us to handle this in som_begin_writing. */
3743 if (obj_som_exec_data (abfd)
3744 && obj_som_exec_data (abfd)->version_id)
3745 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3747 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3749 /* Next is the symbol table. These are fixed length records.
3751 Count the number of symbols to determine how much room is needed
3752 in the object file for the symbol table.
3754 The names of the symbols are stored in a separate string table,
3755 and the index for each symbol name into the string table is computed
3756 below. Therefore, it is not possible to write the symbol table
3759 These used to be output before the subspace contents, but they
3760 were moved here to work around a stupid bug in the hpux linker
3761 (fixed in hpux10). */
3762 current_offset = obj_som_file_hdr (abfd)->som_length;
3764 /* Make sure we're on a word boundary. */
3765 if (current_offset % 4)
3766 current_offset += (4 - (current_offset % 4));
3768 num_syms = bfd_get_symcount (abfd);
3769 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3770 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3771 current_offset += num_syms * sizeof (struct symbol_dictionary_record);
3773 /* Next are the symbol strings.
3774 Align them to a word boundary. */
3775 if (current_offset % 4)
3776 current_offset += (4 - (current_offset % 4));
3777 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3779 /* Scribble out the symbol strings. */
3780 if (! som_write_symbol_strings (abfd, current_offset, syms,
3781 num_syms, &strings_size,
3782 obj_som_compilation_unit (abfd)))
3785 /* Record total string table size in header and update the
3787 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3788 current_offset += strings_size;
3790 /* Do prep work before handling fixups. */
3791 som_prep_for_fixups (abfd,
3792 bfd_get_outsymbols (abfd),
3793 bfd_get_symcount (abfd));
3795 /* At the end of the file is the fixup stream which starts on a
3797 if (current_offset % 4)
3798 current_offset += (4 - (current_offset % 4));
3799 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
3801 /* Write the fixups and update fields in subspace headers which
3802 relate to the fixup stream. */
3803 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
3806 /* Record the total size of the fixup stream in the file header. */
3807 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
3809 /* Done. Store the total size of the SOM. */
3810 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
3812 /* Now that the symbol table information is complete, build and
3813 write the symbol table. */
3814 if (! som_build_and_write_symbol_table (abfd))
3817 /* Subspaces are written first so that we can set up information
3818 about them in their containing spaces as the subspace is written. */
3820 /* Seek to the start of the subspace dictionary records. */
3821 location = obj_som_file_hdr (abfd)->subspace_location;
3822 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3825 section = abfd->sections;
3826 /* Now for each loadable space write out records for its subspaces. */
3827 for (i = 0; i < num_spaces; i++)
3829 asection *subsection;
3832 while (!som_is_space (section))
3833 section = section->next;
3835 /* Now look for all its subspaces. */
3836 for (subsection = abfd->sections;
3838 subsection = subsection->next)
3841 /* Skip any section which does not correspond to a space
3842 or subspace. Or does not have SEC_ALLOC set (and therefore
3843 has no real bits on the disk). */
3844 if (!som_is_subspace (subsection)
3845 || !som_is_container (section, subsection)
3846 || (subsection->flags & SEC_ALLOC) == 0)
3849 /* If this is the first subspace for this space, then save
3850 the index of the subspace in its containing space. Also
3851 set "is_loadable" in the containing space. */
3853 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3855 som_section_data (section)->space_dict->is_loadable = 1;
3856 som_section_data (section)->space_dict->subspace_index
3860 /* Increment the number of subspaces seen and the number of
3861 subspaces contained within the current space. */
3863 som_section_data (section)->space_dict->subspace_quantity++;
3865 /* Mark the index of the current space within the subspace's
3866 dictionary record. */
3867 som_section_data (subsection)->subspace_dict->space_index = i;
3869 /* Dump the current subspace header. */
3870 amt = sizeof (struct som_subspace_dictionary_record);
3871 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3875 /* Goto the next section. */
3876 section = section->next;
3879 /* Now repeat the process for unloadable subspaces. */
3880 section = abfd->sections;
3881 /* Now for each space write out records for its subspaces. */
3882 for (i = 0; i < num_spaces; i++)
3884 asection *subsection;
3887 while (!som_is_space (section))
3888 section = section->next;
3890 /* Now look for all its subspaces. */
3891 for (subsection = abfd->sections;
3893 subsection = subsection->next)
3896 /* Skip any section which does not correspond to a space or
3897 subspace, or which SEC_ALLOC set (and therefore handled
3898 in the loadable spaces/subspaces code above). */
3900 if (!som_is_subspace (subsection)
3901 || !som_is_container (section, subsection)
3902 || (subsection->flags & SEC_ALLOC) != 0)
3905 /* If this is the first subspace for this space, then save
3906 the index of the subspace in its containing space. Clear
3909 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3911 som_section_data (section)->space_dict->is_loadable = 0;
3912 som_section_data (section)->space_dict->subspace_index
3916 /* Increment the number of subspaces seen and the number of
3917 subspaces contained within the current space. */
3918 som_section_data (section)->space_dict->subspace_quantity++;
3921 /* Mark the index of the current space within the subspace's
3922 dictionary record. */
3923 som_section_data (subsection)->subspace_dict->space_index = i;
3925 /* Dump this subspace header. */
3926 amt = sizeof (struct som_subspace_dictionary_record);
3927 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3931 /* Goto the next section. */
3932 section = section->next;
3935 /* All the subspace dictionary records are written, and all the
3936 fields are set up in the space dictionary records.
3938 Seek to the right location and start writing the space
3939 dictionary records. */
3940 location = obj_som_file_hdr (abfd)->space_location;
3941 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3944 section = abfd->sections;
3945 for (i = 0; i < num_spaces; i++)
3948 while (!som_is_space (section))
3949 section = section->next;
3951 /* Dump its header. */
3952 amt = sizeof (struct space_dictionary_record);
3953 if (bfd_bwrite ((PTR) som_section_data (section)->space_dict,
3957 /* Goto the next section. */
3958 section = section->next;
3961 /* Write the compilation unit record if there is one. */
3962 if (obj_som_compilation_unit (abfd))
3964 location = obj_som_file_hdr (abfd)->compiler_location;
3965 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3969 if (bfd_bwrite ((PTR) obj_som_compilation_unit (abfd), amt, abfd) != amt)
3973 /* Setting of the system_id has to happen very late now that copying of
3974 BFD private data happens *after* section contents are set. */
3975 if (abfd->flags & (EXEC_P | DYNAMIC))
3976 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
3977 else if (bfd_get_mach (abfd) == pa20)
3978 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
3979 else if (bfd_get_mach (abfd) == pa11)
3980 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
3982 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
3984 /* Compute the checksum for the file header just before writing
3985 the header to disk. */
3986 obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
3988 /* Only thing left to do is write out the file header. It is always
3989 at location zero. Seek there and write it. */
3990 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3992 amt = sizeof (struct header);
3993 if (bfd_bwrite ((PTR) obj_som_file_hdr (abfd), amt, abfd) != amt)
3996 /* Now write the exec header. */
3997 if (abfd->flags & (EXEC_P | DYNAMIC))
3999 long tmp, som_length;
4000 struct som_exec_auxhdr *exec_header;
4002 exec_header = obj_som_exec_hdr (abfd);
4003 exec_header->exec_entry = bfd_get_start_address (abfd);
4004 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
4006 /* Oh joys. Ram some of the BSS data into the DATA section
4007 to be compatible with how the hp linker makes objects
4008 (saves memory space). */
4009 tmp = exec_header->exec_dsize;
4010 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
4011 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
4012 if (exec_header->exec_bsize < 0)
4013 exec_header->exec_bsize = 0;
4014 exec_header->exec_dsize = tmp;
4016 /* Now perform some sanity checks. The idea is to catch bogons now and
4017 inform the user, instead of silently generating a bogus file. */
4018 som_length = obj_som_file_hdr (abfd)->som_length;
4019 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
4020 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
4022 bfd_set_error (bfd_error_bad_value);
4026 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
4031 if (bfd_bwrite ((PTR) exec_header, amt, abfd) != amt)
4037 /* Compute and return the checksum for a SOM file header. */
4039 static unsigned long
4040 som_compute_checksum (abfd)
4043 unsigned long checksum, count, i;
4044 unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
4047 count = sizeof (struct header) / sizeof (unsigned long);
4048 for (i = 0; i < count; i++)
4049 checksum ^= *(buffer + i);
4055 som_bfd_derive_misc_symbol_info (abfd, sym, info)
4056 bfd *abfd ATTRIBUTE_UNUSED;
4058 struct som_misc_symbol_info *info;
4061 memset (info, 0, sizeof (struct som_misc_symbol_info));
4063 /* The HP SOM linker requires detailed type information about
4064 all symbols (including undefined symbols!). Unfortunately,
4065 the type specified in an import/export statement does not
4066 always match what the linker wants. Severe braindamage. */
4068 /* Section symbols will not have a SOM symbol type assigned to
4069 them yet. Assign all section symbols type ST_DATA. */
4070 if (sym->flags & BSF_SECTION_SYM)
4071 info->symbol_type = ST_DATA;
4074 /* For BFD style common, the linker will choke unless we set the
4075 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
4076 if (bfd_is_com_section (sym->section))
4078 info->symbol_type = ST_STORAGE;
4079 info->symbol_scope = SS_UNSAT;
4082 /* It is possible to have a symbol without an associated
4083 type. This happens if the user imported the symbol
4084 without a type and the symbol was never defined
4085 locally. If BSF_FUNCTION is set for this symbol, then
4086 assign it type ST_CODE (the HP linker requires undefined
4087 external functions to have type ST_CODE rather than ST_ENTRY). */
4088 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4089 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4090 && bfd_is_und_section (sym->section)
4091 && sym->flags & BSF_FUNCTION)
4092 info->symbol_type = ST_CODE;
4094 /* Handle function symbols which were defined in this file.
4095 They should have type ST_ENTRY. Also retrieve the argument
4096 relocation bits from the SOM backend information. */
4097 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4098 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4099 && (sym->flags & BSF_FUNCTION))
4100 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4101 && (sym->flags & BSF_FUNCTION)))
4103 info->symbol_type = ST_ENTRY;
4104 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4105 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4108 /* For unknown symbols set the symbol's type based on the symbol's
4109 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4110 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4112 if (sym->section->flags & SEC_CODE)
4113 info->symbol_type = ST_CODE;
4115 info->symbol_type = ST_DATA;
4118 /* From now on it's a very simple mapping. */
4119 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4120 info->symbol_type = ST_ABSOLUTE;
4121 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4122 info->symbol_type = ST_CODE;
4123 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4124 info->symbol_type = ST_DATA;
4125 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4126 info->symbol_type = ST_MILLICODE;
4127 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4128 info->symbol_type = ST_PLABEL;
4129 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4130 info->symbol_type = ST_PRI_PROG;
4131 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4132 info->symbol_type = ST_SEC_PROG;
4135 /* Now handle the symbol's scope. Exported data which is not
4136 in the common section has scope SS_UNIVERSAL. Note scope
4137 of common symbols was handled earlier! */
4138 if (bfd_is_com_section (sym->section))
4140 else if (bfd_is_und_section (sym->section))
4141 info->symbol_scope = SS_UNSAT;
4142 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
4143 info->symbol_scope = SS_UNIVERSAL;
4144 /* Anything else which is not in the common section has scope
4147 info->symbol_scope = SS_LOCAL;
4149 /* Now set the symbol_info field. It has no real meaning
4150 for undefined or common symbols, but the HP linker will
4151 choke if it's not set to some "reasonable" value. We
4152 use zero as a reasonable value. */
4153 if (bfd_is_com_section (sym->section)
4154 || bfd_is_und_section (sym->section)
4155 || bfd_is_abs_section (sym->section))
4156 info->symbol_info = 0;
4157 /* For all other symbols, the symbol_info field contains the
4158 subspace index of the space this symbol is contained in. */
4160 info->symbol_info = sym->section->target_index;
4162 /* Set the symbol's value. */
4163 info->symbol_value = sym->value + sym->section->vma;
4165 /* The secondary_def field is for "weak" symbols. */
4166 if (sym->flags & BSF_WEAK)
4167 info->secondary_def = TRUE;
4169 info->secondary_def = FALSE;
4171 /* The is_comdat, is_common and dup_common fields provide various
4174 For data symbols, setting IS_COMMON provides Fortran style common
4175 (duplicate definitions and overlapped initialization). Setting both
4176 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4177 definitions as long as they are all the same length). In a shared
4178 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4179 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4180 symbol except in that it loses its IS_COMDAT flag in a shared link.
4182 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4183 DUP_COMMON code symbols are not exported from shared libraries.
4184 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4186 We take a simplified approach to setting the is_comdat, is_common
4187 and dup_common flags in symbols based on the flag settings of their
4188 subspace. This avoids having to add directives like `.comdat' but
4189 the linker behavior is probably undefined if there is more than one
4190 universal symbol (comdat key sysmbol) in a subspace.
4192 The behavior of these flags is not well documentmented, so there
4193 may be bugs and some surprising interactions with other flags. */
4194 if (som_section_data (sym->section)
4195 && som_section_data (sym->section)->subspace_dict
4196 && info->symbol_scope == SS_UNIVERSAL
4197 && (info->symbol_type == ST_ENTRY
4198 || info->symbol_type == ST_CODE
4199 || info->symbol_type == ST_DATA))
4202 = som_section_data (sym->section)->subspace_dict->is_comdat;
4204 = som_section_data (sym->section)->subspace_dict->is_common;
4206 = som_section_data (sym->section)->subspace_dict->dup_common;
4210 /* Build and write, in one big chunk, the entire symbol table for
4214 som_build_and_write_symbol_table (abfd)
4217 unsigned int num_syms = bfd_get_symcount (abfd);
4218 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4219 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4220 struct symbol_dictionary_record *som_symtab = NULL;
4222 bfd_size_type symtab_size;
4224 /* Compute total symbol table size and allocate a chunk of memory
4225 to hold the symbol table as we build it. */
4226 symtab_size = num_syms;
4227 symtab_size *= sizeof (struct symbol_dictionary_record);
4228 som_symtab = (struct symbol_dictionary_record *) bfd_zmalloc (symtab_size);
4229 if (som_symtab == NULL && symtab_size != 0)
4232 /* Walk over each symbol. */
4233 for (i = 0; i < num_syms; i++)
4235 struct som_misc_symbol_info info;
4237 /* This is really an index into the symbol strings table.
4238 By the time we get here, the index has already been
4239 computed and stored into the name field in the BFD symbol. */
4240 som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset;
4242 /* Derive SOM information from the BFD symbol. */
4243 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4246 som_symtab[i].symbol_type = info.symbol_type;
4247 som_symtab[i].symbol_scope = info.symbol_scope;
4248 som_symtab[i].arg_reloc = info.arg_reloc;
4249 som_symtab[i].symbol_info = info.symbol_info;
4250 som_symtab[i].xleast = 3;
4251 som_symtab[i].symbol_value = info.symbol_value | info.priv_level;
4252 som_symtab[i].secondary_def = info.secondary_def;
4253 som_symtab[i].is_comdat = info.is_comdat;
4254 som_symtab[i].is_common = info.is_common;
4255 som_symtab[i].dup_common = info.dup_common;
4258 /* Everything is ready, seek to the right location and
4259 scribble out the symbol table. */
4260 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4263 if (bfd_bwrite ((PTR) som_symtab, symtab_size, abfd) != symtab_size)
4266 if (som_symtab != NULL)
4270 if (som_symtab != NULL)
4275 /* Write an object in SOM format. */
4278 som_write_object_contents (abfd)
4281 if (! abfd->output_has_begun)
4283 /* Set up fixed parts of the file, space, and subspace headers.
4284 Notify the world that output has begun. */
4285 som_prep_headers (abfd);
4286 abfd->output_has_begun = TRUE;
4287 /* Start writing the object file. This include all the string
4288 tables, fixup streams, and other portions of the object file. */
4289 som_begin_writing (abfd);
4292 return (som_finish_writing (abfd));
4295 /* Read and save the string table associated with the given BFD. */
4298 som_slurp_string_table (abfd)
4304 /* Use the saved version if its available. */
4305 if (obj_som_stringtab (abfd) != NULL)
4308 /* I don't think this can currently happen, and I'm not sure it should
4309 really be an error, but it's better than getting unpredictable results
4310 from the host's malloc when passed a size of zero. */
4311 if (obj_som_stringtab_size (abfd) == 0)
4313 bfd_set_error (bfd_error_no_symbols);
4317 /* Allocate and read in the string table. */
4318 amt = obj_som_stringtab_size (abfd);
4319 stringtab = bfd_zmalloc (amt);
4320 if (stringtab == NULL)
4323 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4326 if (bfd_bread (stringtab, amt, abfd) != amt)
4329 /* Save our results and return success. */
4330 obj_som_stringtab (abfd) = stringtab;
4334 /* Return the amount of data (in bytes) required to hold the symbol
4335 table for this object. */
4338 som_get_symtab_upper_bound (abfd)
4341 if (!som_slurp_symbol_table (abfd))
4344 return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *));
4347 /* Convert from a SOM subspace index to a BFD section. */
4350 bfd_section_from_som_symbol (abfd, symbol)
4352 struct symbol_dictionary_record *symbol;
4356 /* The meaning of the symbol_info field changes for functions
4357 within executables. So only use the quick symbol_info mapping for
4358 incomplete objects and non-function symbols in executables. */
4359 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4360 || (symbol->symbol_type != ST_ENTRY
4361 && symbol->symbol_type != ST_PRI_PROG
4362 && symbol->symbol_type != ST_SEC_PROG
4363 && symbol->symbol_type != ST_MILLICODE))
4365 int index = symbol->symbol_info;
4366 for (section = abfd->sections; section != NULL; section = section->next)
4367 if (section->target_index == index && som_is_subspace (section))
4370 /* Could be a symbol from an external library (such as an OMOS
4371 shared library). Don't abort. */
4372 return bfd_abs_section_ptr;
4377 unsigned int value = symbol->symbol_value;
4379 /* For executables we will have to use the symbol's address and
4380 find out what section would contain that address. Yuk. */
4381 for (section = abfd->sections; section; section = section->next)
4383 if (value >= section->vma
4384 && value <= section->vma + section->size
4385 && som_is_subspace (section))
4389 /* Could be a symbol from an external library (such as an OMOS
4390 shared library). Don't abort. */
4391 return bfd_abs_section_ptr;
4396 /* Read and save the symbol table associated with the given BFD. */
4399 som_slurp_symbol_table (abfd)
4402 int symbol_count = bfd_get_symcount (abfd);
4403 int symsize = sizeof (struct symbol_dictionary_record);
4405 struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4406 som_symbol_type *sym, *symbase;
4409 /* Return saved value if it exists. */
4410 if (obj_som_symtab (abfd) != NULL)
4411 goto successful_return;
4413 /* Special case. This is *not* an error. */
4414 if (symbol_count == 0)
4415 goto successful_return;
4417 if (!som_slurp_string_table (abfd))
4420 stringtab = obj_som_stringtab (abfd);
4423 amt *= sizeof (som_symbol_type);
4424 symbase = (som_symbol_type *) bfd_zmalloc (amt);
4425 if (symbase == NULL)
4428 /* Read in the external SOM representation. */
4431 buf = bfd_malloc (amt);
4432 if (buf == NULL && amt != 0)
4434 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4436 if (bfd_bread (buf, amt, abfd) != amt)
4439 /* Iterate over all the symbols and internalize them. */
4440 endbufp = buf + symbol_count;
4441 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4444 /* I don't think we care about these. */
4445 if (bufp->symbol_type == ST_SYM_EXT
4446 || bufp->symbol_type == ST_ARG_EXT)
4449 /* Set some private data we care about. */
4450 if (bufp->symbol_type == ST_NULL)
4451 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4452 else if (bufp->symbol_type == ST_ABSOLUTE)
4453 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4454 else if (bufp->symbol_type == ST_DATA)
4455 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4456 else if (bufp->symbol_type == ST_CODE)
4457 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4458 else if (bufp->symbol_type == ST_PRI_PROG)
4459 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4460 else if (bufp->symbol_type == ST_SEC_PROG)
4461 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4462 else if (bufp->symbol_type == ST_ENTRY)
4463 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4464 else if (bufp->symbol_type == ST_MILLICODE)
4465 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4466 else if (bufp->symbol_type == ST_PLABEL)
4467 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4469 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4470 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc;
4472 /* Some reasonable defaults. */
4473 sym->symbol.the_bfd = abfd;
4474 sym->symbol.name = bufp->name.n_strx + stringtab;
4475 sym->symbol.value = bufp->symbol_value;
4476 sym->symbol.section = 0;
4477 sym->symbol.flags = 0;
4479 switch (bufp->symbol_type)
4483 sym->symbol.flags |= BSF_FUNCTION;
4484 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4485 sym->symbol.value & 0x3;
4486 sym->symbol.value &= ~0x3;
4493 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4494 sym->symbol.value & 0x3;
4495 sym->symbol.value &= ~0x3;
4496 /* If the symbol's scope is SS_UNSAT, then these are
4497 undefined function symbols. */
4498 if (bufp->symbol_scope == SS_UNSAT)
4499 sym->symbol.flags |= BSF_FUNCTION;
4505 /* Handle scoping and section information. */
4506 switch (bufp->symbol_scope)
4508 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4509 so the section associated with this symbol can't be known. */
4511 if (bufp->symbol_type != ST_STORAGE)
4512 sym->symbol.section = bfd_und_section_ptr;
4514 sym->symbol.section = bfd_com_section_ptr;
4515 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4519 if (bufp->symbol_type != ST_STORAGE)
4520 sym->symbol.section = bfd_und_section_ptr;
4522 sym->symbol.section = bfd_com_section_ptr;
4526 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4527 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4528 sym->symbol.value -= sym->symbol.section->vma;
4532 /* SS_GLOBAL and SS_LOCAL are two names for the same thing.
4533 Sound dumb? It is. */
4537 sym->symbol.flags |= BSF_LOCAL;
4538 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4539 sym->symbol.value -= sym->symbol.section->vma;
4543 /* Check for a weak symbol. */
4544 if (bufp->secondary_def)
4545 sym->symbol.flags |= BSF_WEAK;
4547 /* Mark section symbols and symbols used by the debugger.
4548 Note $START$ is a magic code symbol, NOT a section symbol. */
4549 if (sym->symbol.name[0] == '$'
4550 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4551 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4552 sym->symbol.flags |= BSF_SECTION_SYM;
4553 else if (!strncmp (sym->symbol.name, "L$0\002", 4))
4555 sym->symbol.flags |= BSF_SECTION_SYM;
4556 sym->symbol.name = sym->symbol.section->name;
4558 else if (!strncmp (sym->symbol.name, "L$0\001", 4))
4559 sym->symbol.flags |= BSF_DEBUGGING;
4561 /* Note increment at bottom of loop, since we skip some symbols
4562 we can not include it as part of the for statement. */
4566 /* We modify the symbol count to record the number of BFD symbols we
4568 bfd_get_symcount (abfd) = sym - symbase;
4570 /* Save our results and return success. */
4571 obj_som_symtab (abfd) = symbase;
4583 /* Canonicalize a SOM symbol table. Return the number of entries
4584 in the symbol table. */
4587 som_canonicalize_symtab (abfd, location)
4592 som_symbol_type *symbase;
4594 if (!som_slurp_symbol_table (abfd))
4597 i = bfd_get_symcount (abfd);
4598 symbase = obj_som_symtab (abfd);
4600 for (; i > 0; i--, location++, symbase++)
4601 *location = &symbase->symbol;
4603 /* Final null pointer. */
4605 return (bfd_get_symcount (abfd));
4608 /* Make a SOM symbol. There is nothing special to do here. */
4611 som_make_empty_symbol (abfd)
4614 bfd_size_type amt = sizeof (som_symbol_type);
4615 som_symbol_type *new = (som_symbol_type *) bfd_zalloc (abfd, amt);
4618 new->symbol.the_bfd = abfd;
4620 return &new->symbol;
4623 /* Print symbol information. */
4626 som_print_symbol (abfd, afile, symbol, how)
4630 bfd_print_symbol_type how;
4632 FILE *file = (FILE *) afile;
4635 case bfd_print_symbol_name:
4636 fprintf (file, "%s", symbol->name);
4638 case bfd_print_symbol_more:
4639 fprintf (file, "som ");
4640 fprintf_vma (file, symbol->value);
4641 fprintf (file, " %lx", (long) symbol->flags);
4643 case bfd_print_symbol_all:
4645 const char *section_name;
4646 section_name = symbol->section ? symbol->section->name : "(*none*)";
4647 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
4648 fprintf (file, " %s\t%s", section_name, symbol->name);
4655 som_bfd_is_local_label_name (abfd, name)
4656 bfd *abfd ATTRIBUTE_UNUSED;
4659 return (name[0] == 'L' && name[1] == '$');
4662 /* Count or process variable-length SOM fixup records.
4664 To avoid code duplication we use this code both to compute the number
4665 of relocations requested by a stream, and to internalize the stream.
4667 When computing the number of relocations requested by a stream the
4668 variables rptr, section, and symbols have no meaning.
4670 Return the number of relocations requested by the fixup stream. When
4673 This needs at least two or three more passes to get it cleaned up. */
4676 som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
4677 unsigned char *fixup;
4679 arelent *internal_relocs;
4682 bfd_boolean just_count;
4684 unsigned int op, varname, deallocate_contents = 0;
4685 unsigned char *end_fixups = &fixup[end];
4686 const struct fixup_format *fp;
4688 unsigned char *save_fixup;
4689 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4691 arelent *rptr = internal_relocs;
4692 unsigned int offset = 0;
4694 #define var(c) variables[(c) - 'A']
4695 #define push(v) (*sp++ = (v))
4696 #define pop() (*--sp)
4697 #define emptystack() (sp == stack)
4699 som_initialize_reloc_queue (reloc_queue);
4700 memset (variables, 0, sizeof (variables));
4701 memset (stack, 0, sizeof (stack));
4704 saved_unwind_bits = 0;
4707 while (fixup < end_fixups)
4710 /* Save pointer to the start of this fixup. We'll use
4711 it later to determine if it is necessary to put this fixup
4715 /* Get the fixup code and its associated format. */
4717 fp = &som_fixup_formats[op];
4719 /* Handle a request for a previous fixup. */
4720 if (*fp->format == 'P')
4722 /* Get pointer to the beginning of the prev fixup, move
4723 the repeated fixup to the head of the queue. */
4724 fixup = reloc_queue[fp->D].reloc;
4725 som_reloc_queue_fix (reloc_queue, fp->D);
4728 /* Get the fixup code and its associated format. */
4730 fp = &som_fixup_formats[op];
4733 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4735 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4736 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4738 rptr->address = offset;
4739 rptr->howto = &som_hppa_howto_table[op];
4741 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4744 /* Set default input length to 0. Get the opcode class index
4748 var ('U') = saved_unwind_bits;
4750 /* Get the opcode format. */
4753 /* Process the format string. Parsing happens in two phases,
4754 parse RHS, then assign to LHS. Repeat until no more
4755 characters in the format string. */
4758 /* The variable this pass is going to compute a value for. */
4761 /* Start processing RHS. Continue until a NULL or '=' is found. */
4766 /* If this is a variable, push it on the stack. */
4770 /* If this is a lower case letter, then it represents
4771 additional data from the fixup stream to be pushed onto
4773 else if (ISLOWER (c))
4775 int bits = (c - 'a') * 8;
4776 for (v = 0; c > 'a'; --c)
4777 v = (v << 8) | *fixup++;
4779 v = sign_extend (v, bits);
4783 /* A decimal constant. Push it on the stack. */
4784 else if (ISDIGIT (c))
4787 while (ISDIGIT (*cp))
4788 v = (v * 10) + (*cp++ - '0');
4792 /* An operator. Pop two two values from the stack and
4793 use them as operands to the given operation. Push
4794 the result of the operation back on the stack. */
4816 while (*cp && *cp != '=');
4818 /* Move over the equal operator. */
4821 /* Pop the RHS off the stack. */
4824 /* Perform the assignment. */
4827 /* Handle side effects. and special 'O' stack cases. */
4830 /* Consume some bytes from the input space. */
4834 /* A symbol to use in the relocation. Make a note
4835 of this if we are not just counting. */
4838 rptr->sym_ptr_ptr = &symbols[c];
4840 /* Argument relocation bits for a function call. */
4844 unsigned int tmp = var ('R');
4847 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
4848 && R_PCREL_CALL + 10 > op)
4849 || (som_hppa_howto_table[op].type == R_ABS_CALL
4850 && R_ABS_CALL + 10 > op))
4852 /* Simple encoding. */
4859 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
4861 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
4863 rptr->addend |= 1 << 8 | 1 << 6;
4865 rptr->addend |= 1 << 8;
4869 unsigned int tmp1, tmp2;
4871 /* First part is easy -- low order two bits are
4872 directly copied, then shifted away. */
4873 rptr->addend = tmp & 0x3;
4876 /* Diving the result by 10 gives us the second
4877 part. If it is 9, then the first two words
4878 are a double precision paramater, else it is
4879 3 * the first arg bits + the 2nd arg bits. */
4883 rptr->addend += (0xe << 6);
4886 /* Get the two pieces. */
4889 /* Put them in the addend. */
4890 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
4893 /* What's left is the third part. It's unpacked
4894 just like the second. */
4896 rptr->addend += (0xe << 2);
4901 rptr->addend += (tmp2 << 4) + (tmp << 2);
4904 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
4907 /* Handle the linker expression stack. */
4912 subop = comp1_opcodes;
4915 subop = comp2_opcodes;
4918 subop = comp3_opcodes;
4923 while (*subop <= (unsigned char) c)
4927 /* The lower 32unwind bits must be persistent. */
4929 saved_unwind_bits = var ('U');
4937 /* If we used a previous fixup, clean up after it. */
4940 fixup = save_fixup + 1;
4944 else if (fixup > save_fixup + 1)
4945 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
4947 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
4949 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
4950 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
4952 /* Done with a single reloction. Loop back to the top. */
4955 if (som_hppa_howto_table[op].type == R_ENTRY)
4956 rptr->addend = var ('T');
4957 else if (som_hppa_howto_table[op].type == R_EXIT)
4958 rptr->addend = var ('U');
4959 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
4960 || som_hppa_howto_table[op].type == R_ABS_CALL)
4962 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
4964 /* Try what was specified in R_DATA_OVERRIDE first
4965 (if anything). Then the hard way using the
4966 section contents. */
4967 rptr->addend = var ('V');
4969 if (rptr->addend == 0 && !section->contents)
4971 /* Got to read the damn contents first. We don't
4972 bother saving the contents (yet). Add it one
4973 day if the need arises. */
4975 if (!bfd_malloc_and_get_section (section->owner, section,
4978 if (contents != NULL)
4980 return (unsigned) -1;
4982 section->contents = contents;
4983 deallocate_contents = 1;
4985 else if (rptr->addend == 0)
4986 rptr->addend = bfd_get_32 (section->owner,
4988 + offset - var ('L')));
4992 rptr->addend = var ('V');
4996 /* Now that we've handled a "full" relocation, reset
4998 memset (variables, 0, sizeof (variables));
4999 memset (stack, 0, sizeof (stack));
5002 if (deallocate_contents)
5003 free (section->contents);
5013 /* Read in the relocs (aka fixups in SOM terms) for a section.
5015 som_get_reloc_upper_bound calls this routine with JUST_COUNT
5016 set to TRUE to indicate it only needs a count of the number
5017 of actual relocations. */
5020 som_slurp_reloc_table (abfd, section, symbols, just_count)
5024 bfd_boolean just_count;
5026 char *external_relocs;
5027 unsigned int fixup_stream_size;
5028 arelent *internal_relocs;
5029 unsigned int num_relocs;
5032 fixup_stream_size = som_section_data (section)->reloc_size;
5033 /* If there were no relocations, then there is nothing to do. */
5034 if (section->reloc_count == 0)
5037 /* If reloc_count is -1, then the relocation stream has not been
5038 parsed. We must do so now to know how many relocations exist. */
5039 if (section->reloc_count == (unsigned) -1)
5041 amt = fixup_stream_size;
5042 external_relocs = (char *) bfd_malloc (amt);
5043 if (external_relocs == (char *) NULL)
5045 /* Read in the external forms. */
5047 obj_som_reloc_filepos (abfd) + section->rel_filepos,
5051 if (bfd_bread (external_relocs, amt, abfd) != amt)
5054 /* Let callers know how many relocations found.
5055 also save the relocation stream as we will
5057 section->reloc_count = som_set_reloc_info (external_relocs,
5059 NULL, NULL, NULL, TRUE);
5061 som_section_data (section)->reloc_stream = external_relocs;
5064 /* If the caller only wanted a count, then return now. */
5068 num_relocs = section->reloc_count;
5069 external_relocs = som_section_data (section)->reloc_stream;
5070 /* Return saved information about the relocations if it is available. */
5071 if (section->relocation != (arelent *) NULL)
5075 amt *= sizeof (arelent);
5076 internal_relocs = (arelent *) bfd_zalloc (abfd, (amt));
5077 if (internal_relocs == (arelent *) NULL)
5080 /* Process and internalize the relocations. */
5081 som_set_reloc_info (external_relocs, fixup_stream_size,
5082 internal_relocs, section, symbols, FALSE);
5084 /* We're done with the external relocations. Free them. */
5085 free (external_relocs);
5086 som_section_data (section)->reloc_stream = NULL;
5088 /* Save our results and return success. */
5089 section->relocation = internal_relocs;
5093 /* Return the number of bytes required to store the relocation
5094 information associated with the given section. */
5097 som_get_reloc_upper_bound (abfd, asect)
5101 /* If section has relocations, then read in the relocation stream
5102 and parse it to determine how many relocations exist. */
5103 if (asect->flags & SEC_RELOC)
5105 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
5107 return (asect->reloc_count + 1) * sizeof (arelent *);
5109 /* There are no relocations. */
5113 /* Convert relocations from SOM (external) form into BFD internal
5114 form. Return the number of relocations. */
5117 som_canonicalize_reloc (abfd, section, relptr, symbols)
5126 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
5129 count = section->reloc_count;
5130 tblptr = section->relocation;
5133 *relptr++ = tblptr++;
5135 *relptr = (arelent *) NULL;
5136 return section->reloc_count;
5139 extern const bfd_target som_vec;
5141 /* A hook to set up object file dependent section information. */
5144 som_new_section_hook (abfd, newsect)
5148 bfd_size_type amt = sizeof (struct som_section_data_struct);
5149 newsect->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
5150 if (!newsect->used_by_bfd)
5152 newsect->alignment_power = 3;
5154 /* We allow more than three sections internally. */
5158 /* Copy any private info we understand from the input symbol
5159 to the output symbol. */
5162 som_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol)
5168 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5169 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5171 /* One day we may try to grok other private data. */
5172 if (ibfd->xvec->flavour != bfd_target_som_flavour
5173 || obfd->xvec->flavour != bfd_target_som_flavour)
5176 /* The only private information we need to copy is the argument relocation
5178 output_symbol->tc_data.ap.hppa_arg_reloc =
5179 input_symbol->tc_data.ap.hppa_arg_reloc;
5184 /* Copy any private info we understand from the input section
5185 to the output section. */
5188 som_bfd_copy_private_section_data (ibfd, isection, obfd, osection)
5196 /* One day we may try to grok other private data. */
5197 if (ibfd->xvec->flavour != bfd_target_som_flavour
5198 || obfd->xvec->flavour != bfd_target_som_flavour
5199 || (!som_is_space (isection) && !som_is_subspace (isection)))
5202 amt = sizeof (struct som_copyable_section_data_struct);
5203 som_section_data (osection)->copy_data =
5204 (struct som_copyable_section_data_struct *) bfd_zalloc (obfd, amt);
5205 if (som_section_data (osection)->copy_data == NULL)
5208 memcpy (som_section_data (osection)->copy_data,
5209 som_section_data (isection)->copy_data,
5210 sizeof (struct som_copyable_section_data_struct));
5212 /* Reparent if necessary. */
5213 if (som_section_data (osection)->copy_data->container)
5214 som_section_data (osection)->copy_data->container =
5215 som_section_data (osection)->copy_data->container->output_section;
5220 /* Copy any private info we understand from the input bfd
5221 to the output bfd. */
5224 som_bfd_copy_private_bfd_data (ibfd, obfd)
5227 /* One day we may try to grok other private data. */
5228 if (ibfd->xvec->flavour != bfd_target_som_flavour
5229 || obfd->xvec->flavour != bfd_target_som_flavour)
5232 /* Allocate some memory to hold the data we need. */
5233 obj_som_exec_data (obfd) = (struct som_exec_data *)
5234 bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5235 if (obj_som_exec_data (obfd) == NULL)
5238 /* Now copy the data. */
5239 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5240 sizeof (struct som_exec_data));
5245 /* Set backend info for sections which can not be described
5246 in the BFD data structures. */
5249 bfd_som_set_section_attributes (section, defined, private, sort_key, spnum)
5253 unsigned int sort_key;
5256 /* Allocate memory to hold the magic information. */
5257 if (som_section_data (section)->copy_data == NULL)
5259 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5260 som_section_data (section)->copy_data =
5261 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5263 if (som_section_data (section)->copy_data == NULL)
5266 som_section_data (section)->copy_data->sort_key = sort_key;
5267 som_section_data (section)->copy_data->is_defined = defined;
5268 som_section_data (section)->copy_data->is_private = private;
5269 som_section_data (section)->copy_data->container = section;
5270 som_section_data (section)->copy_data->space_number = spnum;
5274 /* Set backend info for subsections which can not be described
5275 in the BFD data structures. */
5278 bfd_som_set_subsection_attributes (section, container, access,
5279 sort_key, quadrant, comdat,
5282 asection *container;
5284 unsigned int sort_key;
5285 int quadrant, comdat, common, dup_common;
5287 /* Allocate memory to hold the magic information. */
5288 if (som_section_data (section)->copy_data == NULL)
5290 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5291 som_section_data (section)->copy_data =
5292 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5294 if (som_section_data (section)->copy_data == NULL)
5297 som_section_data (section)->copy_data->sort_key = sort_key;
5298 som_section_data (section)->copy_data->access_control_bits = access;
5299 som_section_data (section)->copy_data->quadrant = quadrant;
5300 som_section_data (section)->copy_data->container = container;
5301 som_section_data (section)->copy_data->is_comdat = comdat;
5302 som_section_data (section)->copy_data->is_common = common;
5303 som_section_data (section)->copy_data->dup_common = dup_common;
5307 /* Set the full SOM symbol type. SOM needs far more symbol information
5308 than any other object file format I'm aware of. It is mandatory
5309 to be able to know if a symbol is an entry point, millicode, data,
5310 code, absolute, storage request, or procedure label. If you get
5311 the symbol type wrong your program will not link. */
5314 bfd_som_set_symbol_type (symbol, type)
5318 som_symbol_data (symbol)->som_type = type;
5321 /* Attach an auxiliary header to the BFD backend so that it may be
5322 written into the object file. */
5325 bfd_som_attach_aux_hdr (abfd, type, string)
5332 if (type == VERSION_AUX_ID)
5334 size_t len = strlen (string);
5338 pad = (4 - (len % 4));
5339 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5340 obj_som_version_hdr (abfd) =
5341 (struct user_string_aux_hdr *) bfd_zalloc (abfd, amt);
5342 if (!obj_som_version_hdr (abfd))
5344 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5345 obj_som_version_hdr (abfd)->header_id.length = len + pad;
5346 obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
5347 obj_som_version_hdr (abfd)->string_length = len;
5348 strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
5350 else if (type == COPYRIGHT_AUX_ID)
5352 int len = strlen (string);
5356 pad = (4 - (len % 4));
5357 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5358 obj_som_copyright_hdr (abfd) =
5359 (struct copyright_aux_hdr *) bfd_zalloc (abfd, amt);
5360 if (!obj_som_copyright_hdr (abfd))
5362 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5363 obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
5364 obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
5365 obj_som_copyright_hdr (abfd)->string_length = len;
5366 strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
5371 /* Attach a compilation unit header to the BFD backend so that it may be
5372 written into the object file. */
5375 bfd_som_attach_compilation_unit (abfd, name, language_name, product_id,
5379 const char *language_name;
5380 const char *product_id;
5381 const char *version_id;
5383 COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
5390 n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5391 if (n->f.n_name == NULL) \
5393 strcpy (n->f.n_name, f); \
5397 STRDUP (language_name);
5398 STRDUP (product_id);
5399 STRDUP (version_id);
5403 obj_som_compilation_unit (abfd) = n;
5409 som_get_section_contents (abfd, section, location, offset, count)
5414 bfd_size_type count;
5416 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5418 if ((bfd_size_type) (offset+count) > section->size
5419 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5420 || bfd_bread (location, count, abfd) != count)
5421 return FALSE; /* On error. */
5426 som_set_section_contents (abfd, section, location, offset, count)
5431 bfd_size_type count;
5433 if (! abfd->output_has_begun)
5435 /* Set up fixed parts of the file, space, and subspace headers.
5436 Notify the world that output has begun. */
5437 som_prep_headers (abfd);
5438 abfd->output_has_begun = TRUE;
5439 /* Start writing the object file. This include all the string
5440 tables, fixup streams, and other portions of the object file. */
5441 som_begin_writing (abfd);
5444 /* Only write subspaces which have "real" contents (eg. the contents
5445 are not generated at run time by the OS). */
5446 if (!som_is_subspace (section)
5447 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5450 /* Seek to the proper offset within the object file and write the
5452 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5453 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5456 if (bfd_bwrite (location, count, abfd) != count)
5462 som_set_arch_mach (abfd, arch, machine)
5464 enum bfd_architecture arch;
5465 unsigned long machine;
5467 /* Allow any architecture to be supported by the SOM backend. */
5468 return bfd_default_set_arch_mach (abfd, arch, machine);
5472 som_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
5473 functionname_ptr, line_ptr)
5474 bfd *abfd ATTRIBUTE_UNUSED;
5475 asection *section ATTRIBUTE_UNUSED;
5476 asymbol **symbols ATTRIBUTE_UNUSED;
5477 bfd_vma offset ATTRIBUTE_UNUSED;
5478 const char **filename_ptr ATTRIBUTE_UNUSED;
5479 const char **functionname_ptr ATTRIBUTE_UNUSED;
5480 unsigned int *line_ptr ATTRIBUTE_UNUSED;
5486 som_sizeof_headers (abfd, reloc)
5487 bfd *abfd ATTRIBUTE_UNUSED;
5488 bfd_boolean reloc ATTRIBUTE_UNUSED;
5490 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5496 /* Return the single-character symbol type corresponding to
5497 SOM section S, or '?' for an unknown SOM section. */
5500 som_section_type (s)
5503 const struct section_to_type *t;
5505 for (t = &stt[0]; t->section; t++)
5506 if (!strcmp (s, t->section))
5512 som_decode_symclass (symbol)
5517 if (bfd_is_com_section (symbol->section))
5519 if (bfd_is_und_section (symbol->section))
5521 if (bfd_is_ind_section (symbol->section))
5523 if (symbol->flags & BSF_WEAK)
5525 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5528 if (bfd_is_abs_section (symbol->section)
5529 || (som_symbol_data (symbol) != NULL
5530 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5532 else if (symbol->section)
5533 c = som_section_type (symbol->section->name);
5536 if (symbol->flags & BSF_GLOBAL)
5541 /* Return information about SOM symbol SYMBOL in RET. */
5544 som_get_symbol_info (ignore_abfd, symbol, ret)
5545 bfd *ignore_abfd ATTRIBUTE_UNUSED;
5549 ret->type = som_decode_symclass (symbol);
5550 if (ret->type != 'U')
5551 ret->value = symbol->value + symbol->section->vma;
5554 ret->name = symbol->name;
5557 /* Count the number of symbols in the archive symbol table. Necessary
5558 so that we can allocate space for all the carsyms at once. */
5561 som_bfd_count_ar_symbols (abfd, lst_header, count)
5563 struct lst_header *lst_header;
5567 unsigned int *hash_table = NULL;
5569 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5571 amt = lst_header->hash_size;
5572 amt *= sizeof (unsigned int);
5573 hash_table = (unsigned int *) bfd_malloc (amt);
5574 if (hash_table == NULL && lst_header->hash_size != 0)
5577 /* Don't forget to initialize the counter! */
5580 /* Read in the hash table. The has table is an array of 32bit file offsets
5581 which point to the hash chains. */
5582 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5585 /* Walk each chain counting the number of symbols found on that particular
5587 for (i = 0; i < lst_header->hash_size; i++)
5589 struct lst_symbol_record lst_symbol;
5591 /* An empty chain has zero as it's file offset. */
5592 if (hash_table[i] == 0)
5595 /* Seek to the first symbol in this hash chain. */
5596 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5599 /* Read in this symbol and update the counter. */
5600 amt = sizeof (lst_symbol);
5601 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5606 /* Now iterate through the rest of the symbols on this chain. */
5607 while (lst_symbol.next_entry)
5610 /* Seek to the next symbol. */
5611 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5615 /* Read the symbol in and update the counter. */
5616 amt = sizeof (lst_symbol);
5617 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5623 if (hash_table != NULL)
5628 if (hash_table != NULL)
5633 /* Fill in the canonical archive symbols (SYMS) from the archive described
5634 by ABFD and LST_HEADER. */
5637 som_bfd_fill_in_ar_symbols (abfd, lst_header, syms)
5639 struct lst_header *lst_header;
5642 unsigned int i, len;
5643 carsym *set = syms[0];
5644 unsigned int *hash_table = NULL;
5645 struct som_entry *som_dict = NULL;
5647 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5649 amt = lst_header->hash_size;
5650 amt *= sizeof (unsigned int);
5651 hash_table = (unsigned int *) bfd_malloc (amt);
5652 if (hash_table == NULL && lst_header->hash_size != 0)
5655 /* Read in the hash table. The has table is an array of 32bit file offsets
5656 which point to the hash chains. */
5657 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5660 /* Seek to and read in the SOM dictionary. We will need this to fill
5661 in the carsym's filepos field. */
5662 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5665 amt = lst_header->module_count;
5666 amt *= sizeof (struct som_entry);
5667 som_dict = (struct som_entry *) bfd_malloc (amt);
5668 if (som_dict == NULL && lst_header->module_count != 0)
5671 if (bfd_bread ((PTR) som_dict, amt, abfd) != amt)
5674 /* Walk each chain filling in the carsyms as we go along. */
5675 for (i = 0; i < lst_header->hash_size; i++)
5677 struct lst_symbol_record lst_symbol;
5679 /* An empty chain has zero as it's file offset. */
5680 if (hash_table[i] == 0)
5683 /* Seek to and read the first symbol on the chain. */
5684 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5687 amt = sizeof (lst_symbol);
5688 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5691 /* Get the name of the symbol, first get the length which is stored
5692 as a 32bit integer just before the symbol.
5694 One might ask why we don't just read in the entire string table
5695 and index into it. Well, according to the SOM ABI the string
5696 index can point *anywhere* in the archive to save space, so just
5697 using the string table would not be safe. */
5698 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5699 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5702 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5705 /* Allocate space for the name and null terminate it too. */
5706 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5709 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5714 /* Fill in the file offset. Note that the "location" field points
5715 to the SOM itself, not the ar_hdr in front of it. */
5716 set->file_offset = som_dict[lst_symbol.som_index].location
5717 - sizeof (struct ar_hdr);
5719 /* Go to the next symbol. */
5722 /* Iterate through the rest of the chain. */
5723 while (lst_symbol.next_entry)
5725 /* Seek to the next symbol and read it in. */
5726 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5730 amt = sizeof (lst_symbol);
5731 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5734 /* Seek to the name length & string and read them in. */
5735 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5736 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5739 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5742 /* Allocate space for the name and null terminate it too. */
5743 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5747 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5751 /* Fill in the file offset. Note that the "location" field points
5752 to the SOM itself, not the ar_hdr in front of it. */
5753 set->file_offset = som_dict[lst_symbol.som_index].location
5754 - sizeof (struct ar_hdr);
5756 /* Go on to the next symbol. */
5760 /* If we haven't died by now, then we successfully read the entire
5761 archive symbol table. */
5762 if (hash_table != NULL)
5764 if (som_dict != NULL)
5769 if (hash_table != NULL)
5771 if (som_dict != NULL)
5776 /* Read in the LST from the archive. */
5779 som_slurp_armap (abfd)
5782 struct lst_header lst_header;
5783 struct ar_hdr ar_header;
5784 unsigned int parsed_size;
5785 struct artdata *ardata = bfd_ardata (abfd);
5787 bfd_size_type amt = 16;
5788 int i = bfd_bread ((PTR) nextname, amt, abfd);
5790 /* Special cases. */
5796 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
5799 /* For archives without .o files there is no symbol table. */
5800 if (strncmp (nextname, "/ ", 16))
5802 bfd_has_map (abfd) = FALSE;
5806 /* Read in and sanity check the archive header. */
5807 amt = sizeof (struct ar_hdr);
5808 if (bfd_bread ((PTR) &ar_header, amt, abfd) != amt)
5811 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
5813 bfd_set_error (bfd_error_malformed_archive);
5817 /* How big is the archive symbol table entry? */
5819 parsed_size = strtol (ar_header.ar_size, NULL, 10);
5822 bfd_set_error (bfd_error_malformed_archive);
5826 /* Save off the file offset of the first real user data. */
5827 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
5829 /* Read in the library symbol table. We'll make heavy use of this
5830 in just a minute. */
5831 amt = sizeof (struct lst_header);
5832 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
5836 if (lst_header.a_magic != LIBMAGIC)
5838 bfd_set_error (bfd_error_malformed_archive);
5842 /* Count the number of symbols in the library symbol table. */
5843 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
5846 /* Get back to the start of the library symbol table. */
5847 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
5848 + sizeof (struct lst_header)), SEEK_SET) != 0)
5851 /* Initialize the cache and allocate space for the library symbols. */
5853 amt = ardata->symdef_count;
5854 amt *= sizeof (carsym);
5855 ardata->symdefs = (carsym *) bfd_alloc (abfd, amt);
5856 if (!ardata->symdefs)
5859 /* Now fill in the canonical archive symbols. */
5860 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
5863 /* Seek back to the "first" file in the archive. Note the "first"
5864 file may be the extended name table. */
5865 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
5868 /* Notify the generic archive code that we have a symbol map. */
5869 bfd_has_map (abfd) = TRUE;
5873 /* Begin preparing to write a SOM library symbol table.
5875 As part of the prep work we need to determine the number of symbols
5876 and the size of the associated string section. */
5879 som_bfd_prep_for_ar_write (abfd, num_syms, stringsize)
5881 unsigned int *num_syms, *stringsize;
5883 bfd *curr_bfd = abfd->archive_head;
5885 /* Some initialization. */
5889 /* Iterate over each BFD within this archive. */
5890 while (curr_bfd != NULL)
5892 unsigned int curr_count, i;
5893 som_symbol_type *sym;
5895 /* Don't bother for non-SOM objects. */
5896 if (curr_bfd->format != bfd_object
5897 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5899 curr_bfd = curr_bfd->next;
5903 /* Make sure the symbol table has been read, then snag a pointer
5904 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5905 but doing so avoids allocating lots of extra memory. */
5906 if (! som_slurp_symbol_table (curr_bfd))
5909 sym = obj_som_symtab (curr_bfd);
5910 curr_count = bfd_get_symcount (curr_bfd);
5912 /* Examine each symbol to determine if it belongs in the
5913 library symbol table. */
5914 for (i = 0; i < curr_count; i++, sym++)
5916 struct som_misc_symbol_info info;
5918 /* Derive SOM information from the BFD symbol. */
5919 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5921 /* Should we include this symbol? */
5922 if (info.symbol_type == ST_NULL
5923 || info.symbol_type == ST_SYM_EXT
5924 || info.symbol_type == ST_ARG_EXT)
5927 /* Only global symbols and unsatisfied commons. */
5928 if (info.symbol_scope != SS_UNIVERSAL
5929 && info.symbol_type != ST_STORAGE)
5932 /* Do no include undefined symbols. */
5933 if (bfd_is_und_section (sym->symbol.section))
5936 /* Bump the various counters, being careful to honor
5937 alignment considerations in the string table. */
5939 *stringsize = *stringsize + strlen (sym->symbol.name) + 5;
5940 while (*stringsize % 4)
5944 curr_bfd = curr_bfd->next;
5949 /* Hash a symbol name based on the hashing algorithm presented in the
5953 som_bfd_ar_symbol_hash (symbol)
5956 unsigned int len = strlen (symbol->name);
5958 /* Names with length 1 are special. */
5960 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
5962 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
5963 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
5966 /* Do the bulk of the work required to write the SOM library
5970 som_bfd_ar_write_symbol_stuff (abfd, nsyms, string_size, lst, elength)
5972 unsigned int nsyms, string_size;
5973 struct lst_header lst;
5976 file_ptr lst_filepos;
5977 char *strings = NULL, *p;
5978 struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
5980 unsigned int *hash_table = NULL;
5981 struct som_entry *som_dict = NULL;
5982 struct lst_symbol_record **last_hash_entry = NULL;
5983 unsigned int curr_som_offset, som_index = 0;
5986 amt = lst.hash_size;
5987 amt *= sizeof (unsigned int);
5988 hash_table = (unsigned int *) bfd_zmalloc (amt);
5989 if (hash_table == NULL && lst.hash_size != 0)
5992 amt = lst.module_count;
5993 amt *= sizeof (struct som_entry);
5994 som_dict = (struct som_entry *) bfd_zmalloc (amt);
5995 if (som_dict == NULL && lst.module_count != 0)
5998 amt = lst.hash_size;
5999 amt *= sizeof (struct lst_symbol_record *);
6000 last_hash_entry = ((struct lst_symbol_record **) bfd_zmalloc (amt));
6001 if (last_hash_entry == NULL && lst.hash_size != 0)
6004 /* Lots of fields are file positions relative to the start
6005 of the lst record. So save its location. */
6006 lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
6008 /* Symbols have som_index fields, so we have to keep track of the
6009 index of each SOM in the archive.
6011 The SOM dictionary has (among other things) the absolute file
6012 position for the SOM which a particular dictionary entry
6013 describes. We have to compute that information as we iterate
6014 through the SOMs/symbols. */
6017 /* We add in the size of the archive header twice as the location
6018 in the SOM dictionary is the actual offset of the SOM, not the
6019 archive header before the SOM. */
6020 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end;
6022 /* Make room for the archive header and the contents of the
6023 extended string table. Note that elength includes the size
6024 of the archive header for the extended name table! */
6026 curr_som_offset += elength;
6028 /* Make sure we're properly aligned. */
6029 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
6031 /* FIXME should be done with buffers just like everything else... */
6033 amt *= sizeof (struct lst_symbol_record);
6034 lst_syms = bfd_malloc (amt);
6035 if (lst_syms == NULL && nsyms != 0)
6037 strings = bfd_malloc ((bfd_size_type) string_size);
6038 if (strings == NULL && string_size != 0)
6042 curr_lst_sym = lst_syms;
6044 curr_bfd = abfd->archive_head;
6045 while (curr_bfd != NULL)
6047 unsigned int curr_count, i;
6048 som_symbol_type *sym;
6050 /* Don't bother for non-SOM objects. */
6051 if (curr_bfd->format != bfd_object
6052 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6054 curr_bfd = curr_bfd->next;
6058 /* Make sure the symbol table has been read, then snag a pointer
6059 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6060 but doing so avoids allocating lots of extra memory. */
6061 if (! som_slurp_symbol_table (curr_bfd))
6064 sym = obj_som_symtab (curr_bfd);
6065 curr_count = bfd_get_symcount (curr_bfd);
6067 for (i = 0; i < curr_count; i++, sym++)
6069 struct som_misc_symbol_info info;
6071 /* Derive SOM information from the BFD symbol. */
6072 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6074 /* Should we include this symbol? */
6075 if (info.symbol_type == ST_NULL
6076 || info.symbol_type == ST_SYM_EXT
6077 || info.symbol_type == ST_ARG_EXT)
6080 /* Only global symbols and unsatisfied commons. */
6081 if (info.symbol_scope != SS_UNIVERSAL
6082 && info.symbol_type != ST_STORAGE)
6085 /* Do no include undefined symbols. */
6086 if (bfd_is_und_section (sym->symbol.section))
6089 /* If this is the first symbol from this SOM, then update
6090 the SOM dictionary too. */
6091 if (som_dict[som_index].location == 0)
6093 som_dict[som_index].location = curr_som_offset;
6094 som_dict[som_index].length = arelt_size (curr_bfd);
6097 /* Fill in the lst symbol record. */
6098 curr_lst_sym->hidden = 0;
6099 curr_lst_sym->secondary_def = info.secondary_def;
6100 curr_lst_sym->symbol_type = info.symbol_type;
6101 curr_lst_sym->symbol_scope = info.symbol_scope;
6102 curr_lst_sym->check_level = 0;
6103 curr_lst_sym->must_qualify = 0;
6104 curr_lst_sym->initially_frozen = 0;
6105 curr_lst_sym->memory_resident = 0;
6106 curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section);
6107 curr_lst_sym->dup_common = info.dup_common;
6108 curr_lst_sym->xleast = 3;
6109 curr_lst_sym->arg_reloc = info.arg_reloc;
6110 curr_lst_sym->name.n_strx = p - strings + 4;
6111 curr_lst_sym->qualifier_name.n_strx = 0;
6112 curr_lst_sym->symbol_info = info.symbol_info;
6113 curr_lst_sym->symbol_value = info.symbol_value | info.priv_level;
6114 curr_lst_sym->symbol_descriptor = 0;
6115 curr_lst_sym->reserved = 0;
6116 curr_lst_sym->som_index = som_index;
6117 curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6118 curr_lst_sym->next_entry = 0;
6120 /* Insert into the hash table. */
6121 if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
6123 struct lst_symbol_record *tmp;
6125 /* There is already something at the head of this hash chain,
6126 so tack this symbol onto the end of the chain. */
6127 tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size];
6129 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6131 + lst.module_count * sizeof (struct som_entry)
6132 + sizeof (struct lst_header);
6136 /* First entry in this hash chain. */
6137 hash_table[curr_lst_sym->symbol_key % lst.hash_size]
6138 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6140 + lst.module_count * sizeof (struct som_entry)
6141 + sizeof (struct lst_header);
6144 /* Keep track of the last symbol we added to this chain so we can
6145 easily update its next_entry pointer. */
6146 last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]
6149 /* Update the string table. */
6150 bfd_put_32 (abfd, strlen (sym->symbol.name), p);
6152 strcpy (p, sym->symbol.name);
6153 p += strlen (sym->symbol.name) + 1;
6156 bfd_put_8 (abfd, 0, p);
6160 /* Head to the next symbol. */
6164 /* Keep track of where each SOM will finally reside; then look
6166 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6168 /* A particular object in the archive may have an odd length; the
6169 linker requires objects begin on an even boundary. So round
6170 up the current offset as necessary. */
6171 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6172 curr_bfd = curr_bfd->next;
6176 /* Now scribble out the hash table. */
6177 amt = lst.hash_size * 4;
6178 if (bfd_bwrite ((PTR) hash_table, amt, abfd) != amt)
6181 /* Then the SOM dictionary. */
6182 amt = lst.module_count * sizeof (struct som_entry);
6183 if (bfd_bwrite ((PTR) som_dict, amt, abfd) != amt)
6186 /* The library symbols. */
6187 amt = nsyms * sizeof (struct lst_symbol_record);
6188 if (bfd_bwrite ((PTR) lst_syms, amt, abfd) != amt)
6191 /* And finally the strings. */
6193 if (bfd_bwrite ((PTR) strings, amt, abfd) != amt)
6196 if (hash_table != NULL)
6198 if (som_dict != NULL)
6200 if (last_hash_entry != NULL)
6201 free (last_hash_entry);
6202 if (lst_syms != NULL)
6204 if (strings != NULL)
6209 if (hash_table != NULL)
6211 if (som_dict != NULL)
6213 if (last_hash_entry != NULL)
6214 free (last_hash_entry);
6215 if (lst_syms != NULL)
6217 if (strings != NULL)
6223 /* Write out the LST for the archive.
6225 You'll never believe this is really how armaps are handled in SOM... */
6228 som_write_armap (abfd, elength, map, orl_count, stridx)
6230 unsigned int elength;
6231 struct orl *map ATTRIBUTE_UNUSED;
6232 unsigned int orl_count ATTRIBUTE_UNUSED;
6233 int stridx ATTRIBUTE_UNUSED;
6236 struct stat statbuf;
6237 unsigned int i, lst_size, nsyms, stringsize;
6239 struct lst_header lst;
6243 /* We'll use this for the archive's date and mode later. */
6244 if (stat (abfd->filename, &statbuf) != 0)
6246 bfd_set_error (bfd_error_system_call);
6250 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6252 /* Account for the lst header first. */
6253 lst_size = sizeof (struct lst_header);
6255 /* Start building the LST header. */
6256 /* FIXME: Do we need to examine each element to determine the
6257 largest id number? */
6258 lst.system_id = CPU_PA_RISC1_0;
6259 lst.a_magic = LIBMAGIC;
6260 lst.version_id = VERSION_ID;
6261 lst.file_time.secs = 0;
6262 lst.file_time.nanosecs = 0;
6264 lst.hash_loc = lst_size;
6265 lst.hash_size = SOM_LST_HASH_SIZE;
6267 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6268 lst_size += 4 * SOM_LST_HASH_SIZE;
6270 /* We need to count the number of SOMs in this archive. */
6271 curr_bfd = abfd->archive_head;
6272 lst.module_count = 0;
6273 while (curr_bfd != NULL)
6275 /* Only true SOM objects count. */
6276 if (curr_bfd->format == bfd_object
6277 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6279 curr_bfd = curr_bfd->next;
6281 lst.module_limit = lst.module_count;
6282 lst.dir_loc = lst_size;
6283 lst_size += sizeof (struct som_entry) * lst.module_count;
6285 /* We don't support import/export tables, auxiliary headers,
6286 or free lists yet. Make the linker work a little harder
6287 to make our life easier. */
6290 lst.export_count = 0;
6295 /* Count how many symbols we will have on the hash chains and the
6296 size of the associated string table. */
6297 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6300 lst_size += sizeof (struct lst_symbol_record) * nsyms;
6302 /* For the string table. One day we might actually use this info
6303 to avoid small seeks/reads when reading archives. */
6304 lst.string_loc = lst_size;
6305 lst.string_size = stringsize;
6306 lst_size += stringsize;
6308 /* SOM ABI says this must be zero. */
6310 lst.file_end = lst_size;
6312 /* Compute the checksum. Must happen after the entire lst header
6316 for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
6317 lst.checksum ^= *p++;
6319 sprintf (hdr.ar_name, "/ ");
6320 sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
6321 sprintf (hdr.ar_uid, "%ld", (long) getuid ());
6322 sprintf (hdr.ar_gid, "%ld", (long) getgid ());
6323 sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode);
6324 sprintf (hdr.ar_size, "%-10d", (int) lst_size);
6325 hdr.ar_fmag[0] = '`';
6326 hdr.ar_fmag[1] = '\012';
6328 /* Turn any nulls into spaces. */
6329 for (i = 0; i < sizeof (struct ar_hdr); i++)
6330 if (((char *) (&hdr))[i] == '\0')
6331 (((char *) (&hdr))[i]) = ' ';
6333 /* Scribble out the ar header. */
6334 amt = sizeof (struct ar_hdr);
6335 if (bfd_bwrite ((PTR) &hdr, amt, abfd) != amt)
6338 /* Now scribble out the lst header. */
6339 amt = sizeof (struct lst_header);
6340 if (bfd_bwrite ((PTR) &lst, amt, abfd) != amt)
6343 /* Build and write the armap. */
6344 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6351 /* Free all information we have cached for this BFD. We can always
6352 read it again later if we need it. */
6355 som_bfd_free_cached_info (abfd)
6360 if (bfd_get_format (abfd) != bfd_object)
6363 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6364 /* Free the native string and symbol tables. */
6365 FREE (obj_som_symtab (abfd));
6366 FREE (obj_som_stringtab (abfd));
6367 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
6369 /* Free the native relocations. */
6370 o->reloc_count = (unsigned) -1;
6371 FREE (som_section_data (o)->reloc_stream);
6372 /* Free the generic relocations. */
6373 FREE (o->relocation);
6380 /* End of miscellaneous support functions. */
6382 /* Linker support functions. */
6385 som_bfd_link_split_section (abfd, sec)
6386 bfd *abfd ATTRIBUTE_UNUSED;
6389 return (som_is_subspace (sec) && sec->size > 240000);
6392 #define som_close_and_cleanup som_bfd_free_cached_info
6394 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6395 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6396 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6397 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6398 #define som_truncate_arname bfd_bsd_truncate_arname
6399 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6400 #define som_construct_extended_name_table \
6401 _bfd_archive_coff_construct_extended_name_table
6402 #define som_update_armap_timestamp bfd_true
6403 #define som_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
6405 #define som_get_lineno _bfd_nosymbols_get_lineno
6406 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6407 #define som_read_minisymbols _bfd_generic_read_minisymbols
6408 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6409 #define som_get_section_contents_in_window \
6410 _bfd_generic_get_section_contents_in_window
6412 #define som_bfd_get_relocated_section_contents \
6413 bfd_generic_get_relocated_section_contents
6414 #define som_bfd_relax_section bfd_generic_relax_section
6415 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6416 #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6417 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6418 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6419 #define som_bfd_final_link _bfd_generic_final_link
6421 #define som_bfd_gc_sections bfd_generic_gc_sections
6422 #define som_bfd_merge_sections bfd_generic_merge_sections
6423 #define som_bfd_is_group_section bfd_generic_is_group_section
6424 #define som_bfd_discard_group bfd_generic_discard_group
6425 #define som_section_already_linked \
6426 _bfd_generic_section_already_linked
6428 const bfd_target som_vec = {
6430 bfd_target_som_flavour,
6431 BFD_ENDIAN_BIG, /* target byte order */
6432 BFD_ENDIAN_BIG, /* target headers byte order */
6433 (HAS_RELOC | EXEC_P | /* object flags */
6434 HAS_LINENO | HAS_DEBUG |
6435 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6436 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
6437 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
6439 /* leading_symbol_char: is the first char of a user symbol
6440 predictable, and if so what is it. */
6442 '/', /* ar_pad_char */
6443 14, /* ar_max_namelen */
6444 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6445 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6446 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
6447 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6448 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6449 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
6451 som_object_p, /* bfd_check_format */
6452 bfd_generic_archive_p,
6458 _bfd_generic_mkarchive,
6463 som_write_object_contents,
6464 _bfd_write_archive_contents,
6469 BFD_JUMP_TABLE_GENERIC (som),
6470 BFD_JUMP_TABLE_COPY (som),
6471 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6472 BFD_JUMP_TABLE_ARCHIVE (som),
6473 BFD_JUMP_TABLE_SYMBOLS (som),
6474 BFD_JUMP_TABLE_RELOCS (som),
6475 BFD_JUMP_TABLE_WRITE (som),
6476 BFD_JUMP_TABLE_LINK (som),
6477 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6484 #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */