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;
1918 /* Read the space dictionary element. */
1920 (current_offset + file_hdr->space_location
1921 + space_index * sizeof space),
1925 if (bfd_bread (&space, amt, abfd) != amt)
1928 /* Setup the space name string. */
1929 space.name.n_name = space.name.n_strx + space_strings;
1931 /* Make a section out of it. */
1932 amt = strlen (space.name.n_name) + 1;
1933 newname = bfd_alloc (abfd, amt);
1936 strcpy (newname, space.name.n_name);
1938 space_asect = bfd_make_section_anyway (abfd, newname);
1942 if (space.is_loadable == 0)
1943 space_asect->flags |= SEC_DEBUGGING;
1945 /* Set up all the attributes for the space. */
1946 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
1947 space.is_private, space.sort_key,
1948 space.space_number))
1951 /* If the space has no subspaces, then we're done. */
1952 if (space.subspace_quantity == 0)
1955 /* Now, read in the first subspace for this space. */
1957 (current_offset + file_hdr->subspace_location
1958 + space.subspace_index * sizeof subspace),
1961 amt = sizeof subspace;
1962 if (bfd_bread (&subspace, amt, abfd) != amt)
1964 /* Seek back to the start of the subspaces for loop below. */
1966 (current_offset + file_hdr->subspace_location
1967 + space.subspace_index * sizeof subspace),
1971 /* Setup the start address and file loc from the first subspace
1973 space_asect->vma = subspace.subspace_start;
1974 space_asect->filepos = subspace.file_loc_init_value + current_offset;
1975 space_asect->alignment_power = exact_log2 (subspace.alignment);
1976 if (space_asect->alignment_power == (unsigned) -1)
1979 /* Initialize save_subspace so we can reliably determine if this
1980 loop placed any useful values into it. */
1981 memset (&save_subspace, 0, sizeof (save_subspace));
1983 /* Loop over the rest of the subspaces, building up more sections. */
1984 for (subspace_index = 0; subspace_index < space.subspace_quantity;
1987 asection *subspace_asect;
1989 /* Read in the next subspace. */
1990 amt = sizeof subspace;
1991 if (bfd_bread (&subspace, amt, abfd) != amt)
1994 /* Setup the subspace name string. */
1995 subspace.name.n_name = subspace.name.n_strx + space_strings;
1997 amt = strlen (subspace.name.n_name) + 1;
1998 newname = bfd_alloc (abfd, amt);
2001 strcpy (newname, subspace.name.n_name);
2003 /* Make a section out of this subspace. */
2004 subspace_asect = bfd_make_section_anyway (abfd, newname);
2005 if (!subspace_asect)
2008 /* Store private information about the section. */
2009 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
2010 subspace.access_control_bits,
2015 subspace.dup_common))
2018 /* Keep an easy mapping between subspaces and sections.
2019 Note we do not necessarily read the subspaces in the
2020 same order in which they appear in the object file.
2022 So to make the target index come out correctly, we
2023 store the location of the subspace header in target
2024 index, then sort using the location of the subspace
2025 header as the key. Then we can assign correct
2026 subspace indices. */
2028 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2030 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2031 by the access_control_bits in the subspace header. */
2032 switch (subspace.access_control_bits >> 4)
2034 /* Readonly data. */
2036 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2041 subspace_asect->flags |= SEC_DATA;
2044 /* Readonly code and the gateways.
2045 Gateways have other attributes which do not map
2046 into anything BFD knows about. */
2052 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2055 /* dynamic (writable) code. */
2057 subspace_asect->flags |= SEC_CODE;
2061 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
2062 subspace_asect->flags |= SEC_LINK_ONCE;
2064 if (subspace.subspace_length > 0)
2065 subspace_asect->flags |= SEC_HAS_CONTENTS;
2067 if (subspace.is_loadable)
2068 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2070 subspace_asect->flags |= SEC_DEBUGGING;
2072 if (subspace.code_only)
2073 subspace_asect->flags |= SEC_CODE;
2075 /* Both file_loc_init_value and initialization_length will
2076 be zero for a BSS like subspace. */
2077 if (subspace.file_loc_init_value == 0
2078 && subspace.initialization_length == 0)
2079 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2081 /* This subspace has relocations.
2082 The fixup_request_quantity is a byte count for the number of
2083 entries in the relocation stream; it is not the actual number
2084 of relocations in the subspace. */
2085 if (subspace.fixup_request_quantity != 0)
2087 subspace_asect->flags |= SEC_RELOC;
2088 subspace_asect->rel_filepos = subspace.fixup_request_index;
2089 som_section_data (subspace_asect)->reloc_size
2090 = subspace.fixup_request_quantity;
2091 /* We can not determine this yet. When we read in the
2092 relocation table the correct value will be filled in. */
2093 subspace_asect->reloc_count = (unsigned) -1;
2096 /* Update save_subspace if appropriate. */
2097 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2098 save_subspace = subspace;
2100 subspace_asect->vma = subspace.subspace_start;
2101 subspace_asect->size = subspace.subspace_length;
2102 subspace_asect->filepos = (subspace.file_loc_init_value
2104 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
2105 if (subspace_asect->alignment_power == (unsigned) -1)
2109 /* This can happen for a .o which defines symbols in otherwise
2111 if (!save_subspace.file_loc_init_value)
2112 space_asect->size = 0;
2114 /* Setup the size for the space section based upon the info in the
2115 last subspace of the space. */
2116 space_asect->size = (save_subspace.subspace_start
2118 + save_subspace.subspace_length);
2120 /* Now that we've read in all the subspace records, we need to assign
2121 a target index to each subspace. */
2122 amt = total_subspaces;
2123 amt *= sizeof (asection *);
2124 subspace_sections = (asection **) bfd_malloc (amt);
2125 if (subspace_sections == NULL)
2128 for (i = 0, section = abfd->sections; section; section = section->next)
2130 if (!som_is_subspace (section))
2133 subspace_sections[i] = section;
2136 qsort (subspace_sections, total_subspaces,
2137 sizeof (asection *), compare_subspaces);
2139 /* subspace_sections is now sorted in the order in which the subspaces
2140 appear in the object file. Assign an index to each one now. */
2141 for (i = 0; i < total_subspaces; i++)
2142 subspace_sections[i]->target_index = i;
2144 if (space_strings != NULL)
2145 free (space_strings);
2147 if (subspace_sections != NULL)
2148 free (subspace_sections);
2153 if (space_strings != NULL)
2154 free (space_strings);
2156 if (subspace_sections != NULL)
2157 free (subspace_sections);
2161 /* Read in a SOM object and make it into a BFD. */
2163 static const bfd_target *
2167 struct header file_hdr;
2168 struct som_exec_auxhdr aux_hdr;
2169 unsigned long current_offset = 0;
2170 struct lst_header lst_header;
2171 struct som_entry som_entry;
2173 #define ENTRY_SIZE sizeof (struct som_entry)
2175 amt = FILE_HDR_SIZE;
2176 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2178 if (bfd_get_error () != bfd_error_system_call)
2179 bfd_set_error (bfd_error_wrong_format);
2183 if (!_PA_RISC_ID (file_hdr.system_id))
2185 bfd_set_error (bfd_error_wrong_format);
2189 switch (file_hdr.a_magic)
2201 #ifdef SHARED_MAGIC_CNX
2202 case SHARED_MAGIC_CNX:
2208 /* Read the lst header and determine where the SOM directory begins. */
2210 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2212 if (bfd_get_error () != bfd_error_system_call)
2213 bfd_set_error (bfd_error_wrong_format);
2218 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
2220 if (bfd_get_error () != bfd_error_system_call)
2221 bfd_set_error (bfd_error_wrong_format);
2225 /* Position to and read the first directory entry. */
2227 if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0)
2229 if (bfd_get_error () != bfd_error_system_call)
2230 bfd_set_error (bfd_error_wrong_format);
2235 if (bfd_bread ((PTR) &som_entry, amt, abfd) != amt)
2237 if (bfd_get_error () != bfd_error_system_call)
2238 bfd_set_error (bfd_error_wrong_format);
2242 /* Now position to the first SOM. */
2244 if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0)
2246 if (bfd_get_error () != bfd_error_system_call)
2247 bfd_set_error (bfd_error_wrong_format);
2251 current_offset = som_entry.location;
2253 /* And finally, re-read the som header. */
2254 amt = FILE_HDR_SIZE;
2255 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2257 if (bfd_get_error () != bfd_error_system_call)
2258 bfd_set_error (bfd_error_wrong_format);
2266 bfd_set_error (bfd_error_wrong_format);
2270 if (file_hdr.version_id != VERSION_ID
2271 && file_hdr.version_id != NEW_VERSION_ID)
2273 bfd_set_error (bfd_error_wrong_format);
2277 /* If the aux_header_size field in the file header is zero, then this
2278 object is an incomplete executable (a .o file). Do not try to read
2279 a non-existant auxiliary header. */
2280 memset (&aux_hdr, 0, sizeof (struct som_exec_auxhdr));
2281 if (file_hdr.aux_header_size != 0)
2284 if (bfd_bread ((PTR) &aux_hdr, amt, abfd) != amt)
2286 if (bfd_get_error () != bfd_error_system_call)
2287 bfd_set_error (bfd_error_wrong_format);
2292 if (!setup_sections (abfd, &file_hdr, current_offset))
2294 /* setup_sections does not bubble up a bfd error code. */
2295 bfd_set_error (bfd_error_bad_value);
2299 /* This appears to be a valid SOM object. Do some initialization. */
2300 return som_object_setup (abfd, &file_hdr, &aux_hdr, current_offset);
2303 /* Create a SOM object. */
2309 /* Allocate memory to hold backend information. */
2310 abfd->tdata.som_data = (struct som_data_struct *)
2311 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2312 if (abfd->tdata.som_data == NULL)
2317 /* Initialize some information in the file header. This routine makes
2318 not attempt at doing the right thing for a full executable; it
2319 is only meant to handle relocatable objects. */
2322 som_prep_headers (abfd)
2325 struct header *file_hdr;
2327 bfd_size_type amt = sizeof (struct header);
2329 /* Make and attach a file header to the BFD. */
2330 file_hdr = (struct header *) bfd_zalloc (abfd, amt);
2331 if (file_hdr == NULL)
2333 obj_som_file_hdr (abfd) = file_hdr;
2335 if (abfd->flags & (EXEC_P | DYNAMIC))
2337 /* Make and attach an exec header to the BFD. */
2338 amt = sizeof (struct som_exec_auxhdr);
2339 obj_som_exec_hdr (abfd) =
2340 (struct som_exec_auxhdr *) bfd_zalloc (abfd, amt);
2341 if (obj_som_exec_hdr (abfd) == NULL)
2344 if (abfd->flags & D_PAGED)
2345 file_hdr->a_magic = DEMAND_MAGIC;
2346 else if (abfd->flags & WP_TEXT)
2347 file_hdr->a_magic = SHARE_MAGIC;
2349 else if (abfd->flags & DYNAMIC)
2350 file_hdr->a_magic = SHL_MAGIC;
2353 file_hdr->a_magic = EXEC_MAGIC;
2356 file_hdr->a_magic = RELOC_MAGIC;
2358 /* These fields are optional, and embedding timestamps is not always
2359 a wise thing to do, it makes comparing objects during a multi-stage
2360 bootstrap difficult. */
2361 file_hdr->file_time.secs = 0;
2362 file_hdr->file_time.nanosecs = 0;
2364 file_hdr->entry_space = 0;
2365 file_hdr->entry_subspace = 0;
2366 file_hdr->entry_offset = 0;
2367 file_hdr->presumed_dp = 0;
2369 /* Now iterate over the sections translating information from
2370 BFD sections to SOM spaces/subspaces. */
2372 for (section = abfd->sections; section != NULL; section = section->next)
2374 /* Ignore anything which has not been marked as a space or
2376 if (!som_is_space (section) && !som_is_subspace (section))
2379 if (som_is_space (section))
2381 /* Allocate space for the space dictionary. */
2382 amt = sizeof (struct space_dictionary_record);
2383 som_section_data (section)->space_dict =
2384 (struct space_dictionary_record *) bfd_zalloc (abfd, amt);
2385 if (som_section_data (section)->space_dict == NULL)
2387 /* Set space attributes. Note most attributes of SOM spaces
2388 are set based on the subspaces it contains. */
2389 som_section_data (section)->space_dict->loader_fix_index = -1;
2390 som_section_data (section)->space_dict->init_pointer_index = -1;
2392 /* Set more attributes that were stuffed away in private data. */
2393 som_section_data (section)->space_dict->sort_key =
2394 som_section_data (section)->copy_data->sort_key;
2395 som_section_data (section)->space_dict->is_defined =
2396 som_section_data (section)->copy_data->is_defined;
2397 som_section_data (section)->space_dict->is_private =
2398 som_section_data (section)->copy_data->is_private;
2399 som_section_data (section)->space_dict->space_number =
2400 som_section_data (section)->copy_data->space_number;
2404 /* Allocate space for the subspace dictionary. */
2405 amt = sizeof (struct som_subspace_dictionary_record);
2406 som_section_data (section)->subspace_dict =
2407 (struct som_subspace_dictionary_record *) bfd_zalloc (abfd, amt);
2408 if (som_section_data (section)->subspace_dict == NULL)
2411 /* Set subspace attributes. Basic stuff is done here, additional
2412 attributes are filled in later as more information becomes
2414 if (section->flags & SEC_ALLOC)
2415 som_section_data (section)->subspace_dict->is_loadable = 1;
2417 if (section->flags & SEC_CODE)
2418 som_section_data (section)->subspace_dict->code_only = 1;
2420 som_section_data (section)->subspace_dict->subspace_start =
2422 som_section_data (section)->subspace_dict->subspace_length =
2424 som_section_data (section)->subspace_dict->initialization_length =
2426 som_section_data (section)->subspace_dict->alignment =
2427 1 << section->alignment_power;
2429 /* Set more attributes that were stuffed away in private data. */
2430 som_section_data (section)->subspace_dict->sort_key =
2431 som_section_data (section)->copy_data->sort_key;
2432 som_section_data (section)->subspace_dict->access_control_bits =
2433 som_section_data (section)->copy_data->access_control_bits;
2434 som_section_data (section)->subspace_dict->quadrant =
2435 som_section_data (section)->copy_data->quadrant;
2436 som_section_data (section)->subspace_dict->is_comdat =
2437 som_section_data (section)->copy_data->is_comdat;
2438 som_section_data (section)->subspace_dict->is_common =
2439 som_section_data (section)->copy_data->is_common;
2440 som_section_data (section)->subspace_dict->dup_common =
2441 som_section_data (section)->copy_data->dup_common;
2447 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2450 som_is_space (section)
2453 /* If no copy data is available, then it's neither a space nor a
2455 if (som_section_data (section)->copy_data == NULL)
2458 /* If the containing space isn't the same as the given section,
2459 then this isn't a space. */
2460 if (som_section_data (section)->copy_data->container != section
2461 && (som_section_data (section)->copy_data->container->output_section
2465 /* OK. Must be a space. */
2469 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2472 som_is_subspace (section)
2475 /* If no copy data is available, then it's neither a space nor a
2477 if (som_section_data (section)->copy_data == NULL)
2480 /* If the containing space is the same as the given section,
2481 then this isn't a subspace. */
2482 if (som_section_data (section)->copy_data->container == section
2483 || (som_section_data (section)->copy_data->container->output_section
2487 /* OK. Must be a subspace. */
2491 /* Return TRUE if the given space contains the given subspace. It
2492 is safe to assume space really is a space, and subspace really
2496 som_is_container (space, subspace)
2497 asection *space, *subspace;
2499 return (som_section_data (subspace)->copy_data->container == space
2500 || (som_section_data (subspace)->copy_data->container->output_section
2504 /* Count and return the number of spaces attached to the given BFD. */
2506 static unsigned long
2507 som_count_spaces (abfd)
2513 for (section = abfd->sections; section != NULL; section = section->next)
2514 count += som_is_space (section);
2519 /* Count the number of subspaces attached to the given BFD. */
2521 static unsigned long
2522 som_count_subspaces (abfd)
2528 for (section = abfd->sections; section != NULL; section = section->next)
2529 count += som_is_subspace (section);
2534 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2536 We desire symbols to be ordered starting with the symbol with the
2537 highest relocation count down to the symbol with the lowest relocation
2538 count. Doing so compacts the relocation stream. */
2541 compare_syms (arg1, arg2)
2546 asymbol **sym1 = (asymbol **) arg1;
2547 asymbol **sym2 = (asymbol **) arg2;
2548 unsigned int count1, count2;
2550 /* Get relocation count for each symbol. Note that the count
2551 is stored in the udata pointer for section symbols! */
2552 if ((*sym1)->flags & BSF_SECTION_SYM)
2553 count1 = (*sym1)->udata.i;
2555 count1 = som_symbol_data (*sym1)->reloc_count;
2557 if ((*sym2)->flags & BSF_SECTION_SYM)
2558 count2 = (*sym2)->udata.i;
2560 count2 = som_symbol_data (*sym2)->reloc_count;
2562 /* Return the appropriate value. */
2563 if (count1 < count2)
2565 else if (count1 > count2)
2570 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2574 compare_subspaces (arg1, arg2)
2579 asection **subspace1 = (asection **) arg1;
2580 asection **subspace2 = (asection **) arg2;
2582 if ((*subspace1)->target_index < (*subspace2)->target_index)
2584 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2590 /* Perform various work in preparation for emitting the fixup stream. */
2593 som_prep_for_fixups (abfd, syms, num_syms)
2596 unsigned long num_syms;
2600 asymbol **sorted_syms;
2603 /* Most SOM relocations involving a symbol have a length which is
2604 dependent on the index of the symbol. So symbols which are
2605 used often in relocations should have a small index. */
2607 /* First initialize the counters for each symbol. */
2608 for (i = 0; i < num_syms; i++)
2610 /* Handle a section symbol; these have no pointers back to the
2611 SOM symbol info. So we just use the udata field to hold the
2612 relocation count. */
2613 if (som_symbol_data (syms[i]) == NULL
2614 || syms[i]->flags & BSF_SECTION_SYM)
2616 syms[i]->flags |= BSF_SECTION_SYM;
2617 syms[i]->udata.i = 0;
2620 som_symbol_data (syms[i])->reloc_count = 0;
2623 /* Now that the counters are initialized, make a weighted count
2624 of how often a given symbol is used in a relocation. */
2625 for (section = abfd->sections; section != NULL; section = section->next)
2629 /* Does this section have any relocations? */
2630 if ((int) section->reloc_count <= 0)
2633 /* Walk through each relocation for this section. */
2634 for (j = 1; j < (int) section->reloc_count; j++)
2636 arelent *reloc = section->orelocation[j];
2639 /* A relocation against a symbol in the *ABS* section really
2640 does not have a symbol. Likewise if the symbol isn't associated
2641 with any section. */
2642 if (reloc->sym_ptr_ptr == NULL
2643 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2646 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2647 and R_CODE_ONE_SYMBOL relocations to come first. These
2648 two relocations have single byte versions if the symbol
2649 index is very small. */
2650 if (reloc->howto->type == R_DP_RELATIVE
2651 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2656 /* Handle section symbols by storing the count in the udata
2657 field. It will not be used and the count is very important
2658 for these symbols. */
2659 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2661 (*reloc->sym_ptr_ptr)->udata.i =
2662 (*reloc->sym_ptr_ptr)->udata.i + scale;
2666 /* A normal symbol. Increment the count. */
2667 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2671 /* Sort a copy of the symbol table, rather than the canonical
2672 output symbol table. */
2674 amt *= sizeof (asymbol *);
2675 sorted_syms = (asymbol **) bfd_zalloc (abfd, amt);
2676 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2677 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2678 obj_som_sorted_syms (abfd) = sorted_syms;
2680 /* Compute the symbol indexes, they will be needed by the relocation
2682 for (i = 0; i < num_syms; i++)
2684 /* A section symbol. Again, there is no pointer to backend symbol
2685 information, so we reuse the udata field again. */
2686 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2687 sorted_syms[i]->udata.i = i;
2689 som_symbol_data (sorted_syms[i])->index = i;
2694 som_write_fixups (abfd, current_offset, total_reloc_sizep)
2696 unsigned long current_offset;
2697 unsigned int *total_reloc_sizep;
2700 /* Chunk of memory that we can use as buffer space, then throw
2702 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2704 unsigned int total_reloc_size = 0;
2705 unsigned int subspace_reloc_size = 0;
2706 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2707 asection *section = abfd->sections;
2710 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2713 /* All the fixups for a particular subspace are emitted in a single
2714 stream. All the subspaces for a particular space are emitted
2717 So, to get all the locations correct one must iterate through all the
2718 spaces, for each space iterate through its subspaces and output a
2720 for (i = 0; i < num_spaces; i++)
2722 asection *subsection;
2725 while (!som_is_space (section))
2726 section = section->next;
2728 /* Now iterate through each of its subspaces. */
2729 for (subsection = abfd->sections;
2731 subsection = subsection->next)
2734 unsigned int current_rounding_mode;
2735 #ifndef NO_PCREL_MODES
2736 unsigned int current_call_mode;
2739 /* Find a subspace of this space. */
2740 if (!som_is_subspace (subsection)
2741 || !som_is_container (section, subsection))
2744 /* If this subspace does not have real data, then we are
2745 finished with it. */
2746 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2748 som_section_data (subsection)->subspace_dict->fixup_request_index
2753 /* This subspace has some relocations. Put the relocation stream
2754 index into the subspace record. */
2755 som_section_data (subsection)->subspace_dict->fixup_request_index
2758 /* To make life easier start over with a clean slate for
2759 each subspace. Seek to the start of the relocation stream
2760 for this subspace in preparation for writing out its fixup
2762 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2765 /* Buffer space has already been allocated. Just perform some
2766 initialization here. */
2768 subspace_reloc_size = 0;
2770 som_initialize_reloc_queue (reloc_queue);
2771 current_rounding_mode = R_N_MODE;
2772 #ifndef NO_PCREL_MODES
2773 current_call_mode = R_SHORT_PCREL_MODE;
2776 /* Translate each BFD relocation into one or more SOM
2778 for (j = 0; j < subsection->reloc_count; j++)
2780 arelent *bfd_reloc = subsection->orelocation[j];
2784 /* Get the symbol number. Remember it's stored in a
2785 special place for section symbols. */
2786 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2787 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2789 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2791 /* If there is not enough room for the next couple relocations,
2792 then dump the current buffer contents now. Also reinitialize
2793 the relocation queue.
2795 No single BFD relocation could ever translate into more
2796 than 100 bytes of SOM relocations (20bytes is probably the
2797 upper limit, but leave lots of space for growth). */
2798 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2800 amt = p - tmp_space;
2801 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
2805 som_initialize_reloc_queue (reloc_queue);
2808 /* Emit R_NO_RELOCATION fixups to map any bytes which were
2810 skip = bfd_reloc->address - reloc_offset;
2811 p = som_reloc_skip (abfd, skip, p,
2812 &subspace_reloc_size, reloc_queue);
2814 /* Update reloc_offset for the next iteration.
2816 Many relocations do not consume input bytes. They
2817 are markers, or set state necessary to perform some
2818 later relocation. */
2819 switch (bfd_reloc->howto->type)
2839 #ifndef NO_PCREL_MODES
2840 case R_SHORT_PCREL_MODE:
2841 case R_LONG_PCREL_MODE:
2843 reloc_offset = bfd_reloc->address;
2847 reloc_offset = bfd_reloc->address + 4;
2851 /* Now the actual relocation we care about. */
2852 switch (bfd_reloc->howto->type)
2856 p = som_reloc_call (abfd, p, &subspace_reloc_size,
2857 bfd_reloc, sym_num, reloc_queue);
2860 case R_CODE_ONE_SYMBOL:
2862 /* Account for any addend. */
2863 if (bfd_reloc->addend)
2864 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2865 &subspace_reloc_size, reloc_queue);
2869 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
2870 subspace_reloc_size += 1;
2873 else if (sym_num < 0x100)
2875 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
2876 bfd_put_8 (abfd, sym_num, p + 1);
2877 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2880 else if (sym_num < 0x10000000)
2882 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
2883 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2884 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2885 p = try_prev_fixup (abfd, &subspace_reloc_size,
2892 case R_DATA_ONE_SYMBOL:
2896 /* Account for any addend using R_DATA_OVERRIDE. */
2897 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
2898 && bfd_reloc->addend)
2899 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2900 &subspace_reloc_size, reloc_queue);
2902 if (sym_num < 0x100)
2904 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2905 bfd_put_8 (abfd, sym_num, p + 1);
2906 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2909 else if (sym_num < 0x10000000)
2911 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2912 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2913 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2914 p = try_prev_fixup (abfd, &subspace_reloc_size,
2924 arelent *tmp_reloc = NULL;
2925 bfd_put_8 (abfd, R_ENTRY, p);
2927 /* R_ENTRY relocations have 64 bits of associated
2928 data. Unfortunately the addend field of a bfd
2929 relocation is only 32 bits. So, we split up
2930 the 64bit unwind information and store part in
2931 the R_ENTRY relocation, and the rest in the R_EXIT
2933 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
2935 /* Find the next R_EXIT relocation. */
2936 for (tmp = j; tmp < subsection->reloc_count; tmp++)
2938 tmp_reloc = subsection->orelocation[tmp];
2939 if (tmp_reloc->howto->type == R_EXIT)
2943 if (tmp == subsection->reloc_count)
2946 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
2947 p = try_prev_fixup (abfd, &subspace_reloc_size,
2956 /* If this relocation requests the current rounding
2957 mode, then it is redundant. */
2958 if (bfd_reloc->howto->type != current_rounding_mode)
2960 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2961 subspace_reloc_size += 1;
2963 current_rounding_mode = bfd_reloc->howto->type;
2967 #ifndef NO_PCREL_MODES
2968 case R_LONG_PCREL_MODE:
2969 case R_SHORT_PCREL_MODE:
2970 if (bfd_reloc->howto->type != current_call_mode)
2972 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2973 subspace_reloc_size += 1;
2975 current_call_mode = bfd_reloc->howto->type;
2990 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2991 subspace_reloc_size += 1;
2996 /* The end of an exception handling region. The reloc's
2997 addend contains the offset of the exception handling
2999 if (bfd_reloc->addend == 0)
3000 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3001 else if (bfd_reloc->addend < 1024)
3003 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3004 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3005 p = try_prev_fixup (abfd, &subspace_reloc_size,
3010 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3011 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3012 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3013 p = try_prev_fixup (abfd, &subspace_reloc_size,
3019 /* The only time we generate R_COMP1, R_COMP2 and
3020 R_CODE_EXPR relocs is for the difference of two
3021 symbols. Hence we can cheat here. */
3022 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3023 bfd_put_8 (abfd, 0x44, p + 1);
3024 p = try_prev_fixup (abfd, &subspace_reloc_size,
3029 /* The only time we generate R_COMP1, R_COMP2 and
3030 R_CODE_EXPR relocs is for the difference of two
3031 symbols. Hence we can cheat here. */
3032 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3033 bfd_put_8 (abfd, 0x80, p + 1);
3034 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3035 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3036 p = try_prev_fixup (abfd, &subspace_reloc_size,
3042 /* The only time we generate R_COMP1, R_COMP2 and
3043 R_CODE_EXPR relocs is for the difference of two
3044 symbols. Hence we can cheat here. */
3045 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3046 subspace_reloc_size += 1;
3050 /* Put a "R_RESERVED" relocation in the stream if
3051 we hit something we do not understand. The linker
3052 will complain loudly if this ever happens. */
3054 bfd_put_8 (abfd, 0xff, p);
3055 subspace_reloc_size += 1;
3061 /* Last BFD relocation for a subspace has been processed.
3062 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3063 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
3064 p, &subspace_reloc_size, reloc_queue);
3066 /* Scribble out the relocations. */
3067 amt = p - tmp_space;
3068 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
3072 total_reloc_size += subspace_reloc_size;
3073 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3074 = subspace_reloc_size;
3076 section = section->next;
3078 *total_reloc_sizep = total_reloc_size;
3082 /* Write out the space/subspace string table. */
3085 som_write_space_strings (abfd, current_offset, string_sizep)
3087 unsigned long current_offset;
3088 unsigned int *string_sizep;
3090 /* Chunk of memory that we can use as buffer space, then throw
3092 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3093 unsigned char *tmp_space = alloca (tmp_space_size);
3094 unsigned char *p = tmp_space;
3095 unsigned int strings_size = 0;
3099 /* Seek to the start of the space strings in preparation for writing
3101 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3104 /* Walk through all the spaces and subspaces (order is not important)
3105 building up and writing string table entries for their names. */
3106 for (section = abfd->sections; section != NULL; section = section->next)
3110 /* Only work with space/subspaces; avoid any other sections
3111 which might have been made (.text for example). */
3112 if (!som_is_space (section) && !som_is_subspace (section))
3115 /* Get the length of the space/subspace name. */
3116 length = strlen (section->name);
3118 /* If there is not enough room for the next entry, then dump the
3119 current buffer contents now and maybe allocate a larger
3120 buffer. Each entry will take 4 bytes to hold the string
3121 length + the string itself + null terminator. */
3122 if (p - tmp_space + 5 + length > tmp_space_size)
3124 /* Flush buffer before refilling or reallocating. */
3125 amt = p - tmp_space;
3126 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3129 /* Reallocate if now empty buffer still too small. */
3130 if (5 + length > tmp_space_size)
3132 /* Ensure a minimum growth factor to avoid O(n**2) space
3133 consumption for n strings. The optimal minimum
3134 factor seems to be 2, as no other value can guarantee
3135 wasting less than 50% space. (Note that we cannot
3136 deallocate space allocated by `alloca' without
3137 returning from this function.) The same technique is
3138 used a few more times below when a buffer is
3140 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3141 tmp_space = alloca (tmp_space_size);
3144 /* Reset to beginning of the (possibly new) buffer space. */
3148 /* First element in a string table entry is the length of the
3149 string. Alignment issues are already handled. */
3150 bfd_put_32 (abfd, (bfd_vma) length, p);
3154 /* Record the index in the space/subspace records. */
3155 if (som_is_space (section))
3156 som_section_data (section)->space_dict->name.n_strx = strings_size;
3158 som_section_data (section)->subspace_dict->name.n_strx = strings_size;
3160 /* Next comes the string itself + a null terminator. */
3161 strcpy (p, section->name);
3163 strings_size += length + 1;
3165 /* Always align up to the next word boundary. */
3166 while (strings_size % 4)
3168 bfd_put_8 (abfd, 0, p);
3174 /* Done with the space/subspace strings. Write out any information
3175 contained in a partial block. */
3176 amt = p - tmp_space;
3177 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3179 *string_sizep = strings_size;
3183 /* Write out the symbol string table. */
3186 som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep,
3189 unsigned long current_offset;
3191 unsigned int num_syms;
3192 unsigned int *string_sizep;
3193 COMPUNIT *compilation_unit;
3197 /* Chunk of memory that we can use as buffer space, then throw
3199 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3200 unsigned char *tmp_space = alloca (tmp_space_size);
3201 unsigned char *p = tmp_space;
3203 unsigned int strings_size = 0;
3204 unsigned char *comp[4];
3207 /* This gets a bit gruesome because of the compilation unit. The
3208 strings within the compilation unit are part of the symbol
3209 strings, but don't have symbol_dictionary entries. So, manually
3210 write them and update the compilation unit header. On input, the
3211 compilation unit header contains local copies of the strings.
3213 if (compilation_unit)
3215 comp[0] = compilation_unit->name.n_name;
3216 comp[1] = compilation_unit->language_name.n_name;
3217 comp[2] = compilation_unit->product_id.n_name;
3218 comp[3] = compilation_unit->version_id.n_name;
3221 /* Seek to the start of the space strings in preparation for writing
3223 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3226 if (compilation_unit)
3228 for (i = 0; i < 4; i++)
3230 size_t length = strlen (comp[i]);
3232 /* If there is not enough room for the next entry, then dump
3233 the current buffer contents now and maybe allocate a
3235 if (p - tmp_space + 5 + length > tmp_space_size)
3237 /* Flush buffer before refilling or reallocating. */
3238 amt = p - tmp_space;
3239 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3242 /* Reallocate if now empty buffer still too small. */
3243 if (5 + length > tmp_space_size)
3245 /* See alloca above for discussion of new size. */
3246 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3247 tmp_space = alloca (tmp_space_size);
3250 /* Reset to beginning of the (possibly new) buffer
3255 /* First element in a string table entry is the length of
3256 the string. This must always be 4 byte aligned. This is
3257 also an appropriate time to fill in the string index
3258 field in the symbol table entry. */
3259 bfd_put_32 (abfd, (bfd_vma) length, p);
3263 /* Next comes the string itself + a null terminator. */
3264 strcpy (p, comp[i]);
3269 obj_som_compilation_unit (abfd)->name.n_strx = strings_size;
3272 obj_som_compilation_unit (abfd)->language_name.n_strx =
3276 obj_som_compilation_unit (abfd)->product_id.n_strx =
3280 obj_som_compilation_unit (abfd)->version_id.n_strx =
3286 strings_size += length + 1;
3288 /* Always align up to the next word boundary. */
3289 while (strings_size % 4)
3291 bfd_put_8 (abfd, 0, p);
3298 for (i = 0; i < num_syms; i++)
3300 size_t length = strlen (syms[i]->name);
3302 /* If there is not enough room for the next entry, then dump the
3303 current buffer contents now and maybe allocate a larger buffer. */
3304 if (p - tmp_space + 5 + length > tmp_space_size)
3306 /* Flush buffer before refilling or reallocating. */
3307 amt = p - tmp_space;
3308 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3311 /* Reallocate if now empty buffer still too small. */
3312 if (5 + length > tmp_space_size)
3314 /* See alloca above for discussion of new size. */
3315 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3316 tmp_space = alloca (tmp_space_size);
3319 /* Reset to beginning of the (possibly new) buffer space. */
3323 /* First element in a string table entry is the length of the
3324 string. This must always be 4 byte aligned. This is also
3325 an appropriate time to fill in the string index field in the
3326 symbol table entry. */
3327 bfd_put_32 (abfd, (bfd_vma) length, p);
3331 /* Next comes the string itself + a null terminator. */
3332 strcpy (p, syms[i]->name);
3334 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3336 strings_size += length + 1;
3338 /* Always align up to the next word boundary. */
3339 while (strings_size % 4)
3341 bfd_put_8 (abfd, 0, p);
3347 /* Scribble out any partial block. */
3348 amt = p - tmp_space;
3349 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3352 *string_sizep = strings_size;
3356 /* Compute variable information to be placed in the SOM headers,
3357 space/subspace dictionaries, relocation streams, etc. Begin
3358 writing parts of the object file. */
3361 som_begin_writing (abfd)
3364 unsigned long current_offset = 0;
3365 int strings_size = 0;
3366 unsigned long num_spaces, num_subspaces, i;
3368 unsigned int total_subspaces = 0;
3369 struct som_exec_auxhdr *exec_header = NULL;
3371 /* The file header will always be first in an object file,
3372 everything else can be in random locations. To keep things
3373 "simple" BFD will lay out the object file in the manner suggested
3374 by the PRO ABI for PA-RISC Systems. */
3376 /* Before any output can really begin offsets for all the major
3377 portions of the object file must be computed. So, starting
3378 with the initial file header compute (and sometimes write)
3379 each portion of the object file. */
3381 /* Make room for the file header, it's contents are not complete
3382 yet, so it can not be written at this time. */
3383 current_offset += sizeof (struct header);
3385 /* Any auxiliary headers will follow the file header. Right now
3386 we support only the copyright and version headers. */
3387 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3388 obj_som_file_hdr (abfd)->aux_header_size = 0;
3389 if (abfd->flags & (EXEC_P | DYNAMIC))
3391 /* Parts of the exec header will be filled in later, so
3392 delay writing the header itself. Fill in the defaults,
3393 and write it later. */
3394 current_offset += sizeof (struct som_exec_auxhdr);
3395 obj_som_file_hdr (abfd)->aux_header_size
3396 += sizeof (struct som_exec_auxhdr);
3397 exec_header = obj_som_exec_hdr (abfd);
3398 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3399 exec_header->som_auxhdr.length = 40;
3401 if (obj_som_version_hdr (abfd) != NULL)
3405 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3408 /* Write the aux_id structure and the string length. */
3409 len = sizeof (struct aux_id) + sizeof (unsigned int);
3410 obj_som_file_hdr (abfd)->aux_header_size += len;
3411 current_offset += len;
3412 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd), len, abfd) != len)
3415 /* Write the version string. */
3416 len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
3417 obj_som_file_hdr (abfd)->aux_header_size += len;
3418 current_offset += len;
3419 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd)->user_string, len, abfd)
3424 if (obj_som_copyright_hdr (abfd) != NULL)
3428 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3431 /* Write the aux_id structure and the string length. */
3432 len = sizeof (struct aux_id) + sizeof (unsigned int);
3433 obj_som_file_hdr (abfd)->aux_header_size += len;
3434 current_offset += len;
3435 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd), len, abfd) != len)
3438 /* Write the copyright string. */
3439 len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
3440 obj_som_file_hdr (abfd)->aux_header_size += len;
3441 current_offset += len;
3442 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
3447 /* Next comes the initialization pointers; we have no initialization
3448 pointers, so current offset does not change. */
3449 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3450 obj_som_file_hdr (abfd)->init_array_total = 0;
3452 /* Next are the space records. These are fixed length records.
3454 Count the number of spaces to determine how much room is needed
3455 in the object file for the space records.
3457 The names of the spaces are stored in a separate string table,
3458 and the index for each space into the string table is computed
3459 below. Therefore, it is not possible to write the space headers
3461 num_spaces = som_count_spaces (abfd);
3462 obj_som_file_hdr (abfd)->space_location = current_offset;
3463 obj_som_file_hdr (abfd)->space_total = num_spaces;
3464 current_offset += num_spaces * sizeof (struct space_dictionary_record);
3466 /* Next are the subspace records. These are fixed length records.
3468 Count the number of subspaes to determine how much room is needed
3469 in the object file for the subspace records.
3471 A variety if fields in the subspace record are still unknown at
3472 this time (index into string table, fixup stream location/size, etc). */
3473 num_subspaces = som_count_subspaces (abfd);
3474 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3475 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3477 += num_subspaces * sizeof (struct som_subspace_dictionary_record);
3479 /* Next is the string table for the space/subspace names. We will
3480 build and write the string table on the fly. At the same time
3481 we will fill in the space/subspace name index fields. */
3483 /* The string table needs to be aligned on a word boundary. */
3484 if (current_offset % 4)
3485 current_offset += (4 - (current_offset % 4));
3487 /* Mark the offset of the space/subspace string table in the
3489 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3491 /* Scribble out the space strings. */
3492 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3495 /* Record total string table size in the header and update the
3497 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3498 current_offset += strings_size;
3500 /* Next is the compilation unit. */
3501 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3502 obj_som_file_hdr (abfd)->compiler_total = 0;
3503 if (obj_som_compilation_unit (abfd))
3505 obj_som_file_hdr (abfd)->compiler_total = 1;
3506 current_offset += COMPUNITSZ;
3509 /* Now compute the file positions for the loadable subspaces, taking
3510 care to make sure everything stays properly aligned. */
3512 section = abfd->sections;
3513 for (i = 0; i < num_spaces; i++)
3515 asection *subsection;
3517 unsigned int subspace_offset = 0;
3520 while (!som_is_space (section))
3521 section = section->next;
3524 /* Now look for all its subspaces. */
3525 for (subsection = abfd->sections;
3527 subsection = subsection->next)
3530 if (!som_is_subspace (subsection)
3531 || !som_is_container (section, subsection)
3532 || (subsection->flags & SEC_ALLOC) == 0)
3535 /* If this is the first subspace in the space, and we are
3536 building an executable, then take care to make sure all
3537 the alignments are correct and update the exec header. */
3539 && (abfd->flags & (EXEC_P | DYNAMIC)))
3541 /* Demand paged executables have each space aligned to a
3542 page boundary. Sharable executables (write-protected
3543 text) have just the private (aka data & bss) space aligned
3544 to a page boundary. Ugh. Not true for HPUX.
3546 The HPUX kernel requires the text to always be page aligned
3547 within the file regardless of the executable's type. */
3548 if (abfd->flags & (D_PAGED | DYNAMIC)
3549 || (subsection->flags & SEC_CODE)
3550 || ((abfd->flags & WP_TEXT)
3551 && (subsection->flags & SEC_DATA)))
3552 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3554 /* Update the exec header. */
3555 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3557 exec_header->exec_tmem = section->vma;
3558 exec_header->exec_tfile = current_offset;
3560 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3562 exec_header->exec_dmem = section->vma;
3563 exec_header->exec_dfile = current_offset;
3566 /* Keep track of exactly where we are within a particular
3567 space. This is necessary as the braindamaged HPUX
3568 loader will create holes between subspaces *and*
3569 subspace alignments are *NOT* preserved. What a crock. */
3570 subspace_offset = subsection->vma;
3572 /* Only do this for the first subspace within each space. */
3575 else if (abfd->flags & (EXEC_P | DYNAMIC))
3577 /* The braindamaged HPUX loader may have created a hole
3578 between two subspaces. It is *not* sufficient to use
3579 the alignment specifications within the subspaces to
3580 account for these holes -- I've run into at least one
3581 case where the loader left one code subspace unaligned
3582 in a final executable.
3584 To combat this we keep a current offset within each space,
3585 and use the subspace vma fields to detect and preserve
3586 holes. What a crock!
3588 ps. This is not necessary for unloadable space/subspaces. */
3589 current_offset += subsection->vma - subspace_offset;
3590 if (subsection->flags & SEC_CODE)
3591 exec_header->exec_tsize += subsection->vma - subspace_offset;
3593 exec_header->exec_dsize += subsection->vma - subspace_offset;
3594 subspace_offset += subsection->vma - subspace_offset;
3597 subsection->target_index = total_subspaces++;
3598 /* This is real data to be loaded from the file. */
3599 if (subsection->flags & SEC_LOAD)
3601 /* Update the size of the code & data. */
3602 if (abfd->flags & (EXEC_P | DYNAMIC)
3603 && subsection->flags & SEC_CODE)
3604 exec_header->exec_tsize += subsection->size;
3605 else if (abfd->flags & (EXEC_P | DYNAMIC)
3606 && subsection->flags & SEC_DATA)
3607 exec_header->exec_dsize += subsection->size;
3608 som_section_data (subsection)->subspace_dict->file_loc_init_value
3610 subsection->filepos = current_offset;
3611 current_offset += subsection->size;
3612 subspace_offset += subsection->size;
3614 /* Looks like uninitialized data. */
3617 /* Update the size of the bss section. */
3618 if (abfd->flags & (EXEC_P | DYNAMIC))
3619 exec_header->exec_bsize += subsection->size;
3621 som_section_data (subsection)->subspace_dict->file_loc_init_value
3623 som_section_data (subsection)->subspace_dict->
3624 initialization_length = 0;
3627 /* Goto the next section. */
3628 section = section->next;
3631 /* Finally compute the file positions for unloadable subspaces.
3632 If building an executable, start the unloadable stuff on its
3635 if (abfd->flags & (EXEC_P | DYNAMIC))
3636 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3638 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3639 section = abfd->sections;
3640 for (i = 0; i < num_spaces; i++)
3642 asection *subsection;
3645 while (!som_is_space (section))
3646 section = section->next;
3648 if (abfd->flags & (EXEC_P | DYNAMIC))
3649 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3651 /* Now look for all its subspaces. */
3652 for (subsection = abfd->sections;
3654 subsection = subsection->next)
3657 if (!som_is_subspace (subsection)
3658 || !som_is_container (section, subsection)
3659 || (subsection->flags & SEC_ALLOC) != 0)
3662 subsection->target_index = total_subspaces++;
3663 /* This is real data to be loaded from the file. */
3664 if ((subsection->flags & SEC_LOAD) == 0)
3666 som_section_data (subsection)->subspace_dict->file_loc_init_value
3668 subsection->filepos = current_offset;
3669 current_offset += subsection->size;
3671 /* Looks like uninitialized data. */
3674 som_section_data (subsection)->subspace_dict->file_loc_init_value
3676 som_section_data (subsection)->subspace_dict->
3677 initialization_length = subsection->size;
3680 /* Goto the next section. */
3681 section = section->next;
3684 /* If building an executable, then make sure to seek to and write
3685 one byte at the end of the file to make sure any necessary
3686 zeros are filled in. Ugh. */
3687 if (abfd->flags & (EXEC_P | DYNAMIC))
3688 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3689 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3691 if (bfd_bwrite ((PTR) "", (bfd_size_type) 1, abfd) != 1)
3694 obj_som_file_hdr (abfd)->unloadable_sp_size
3695 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3697 /* Loader fixups are not supported in any way shape or form. */
3698 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3699 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3701 /* Done. Store the total size of the SOM so far. */
3702 obj_som_file_hdr (abfd)->som_length = current_offset;
3707 /* Finally, scribble out the various headers to the disk. */
3710 som_finish_writing (abfd)
3713 int num_spaces = som_count_spaces (abfd);
3714 asymbol **syms = bfd_get_outsymbols (abfd);
3715 int i, num_syms, strings_size;
3716 int subspace_index = 0;
3719 unsigned long current_offset;
3720 unsigned int total_reloc_size;
3723 /* We must set up the version identifier here as objcopy/strip copy
3724 private BFD data too late for us to handle this in som_begin_writing. */
3725 if (obj_som_exec_data (abfd)
3726 && obj_som_exec_data (abfd)->version_id)
3727 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3729 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3731 /* Next is the symbol table. These are fixed length records.
3733 Count the number of symbols to determine how much room is needed
3734 in the object file for the symbol table.
3736 The names of the symbols are stored in a separate string table,
3737 and the index for each symbol name into the string table is computed
3738 below. Therefore, it is not possible to write the symbol table
3741 These used to be output before the subspace contents, but they
3742 were moved here to work around a stupid bug in the hpux linker
3743 (fixed in hpux10). */
3744 current_offset = obj_som_file_hdr (abfd)->som_length;
3746 /* Make sure we're on a word boundary. */
3747 if (current_offset % 4)
3748 current_offset += (4 - (current_offset % 4));
3750 num_syms = bfd_get_symcount (abfd);
3751 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3752 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3753 current_offset += num_syms * sizeof (struct symbol_dictionary_record);
3755 /* Next are the symbol strings.
3756 Align them to a word boundary. */
3757 if (current_offset % 4)
3758 current_offset += (4 - (current_offset % 4));
3759 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3761 /* Scribble out the symbol strings. */
3762 if (! som_write_symbol_strings (abfd, current_offset, syms,
3763 num_syms, &strings_size,
3764 obj_som_compilation_unit (abfd)))
3767 /* Record total string table size in header and update the
3769 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3770 current_offset += strings_size;
3772 /* Do prep work before handling fixups. */
3773 som_prep_for_fixups (abfd,
3774 bfd_get_outsymbols (abfd),
3775 bfd_get_symcount (abfd));
3777 /* At the end of the file is the fixup stream which starts on a
3779 if (current_offset % 4)
3780 current_offset += (4 - (current_offset % 4));
3781 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
3783 /* Write the fixups and update fields in subspace headers which
3784 relate to the fixup stream. */
3785 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
3788 /* Record the total size of the fixup stream in the file header. */
3789 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
3791 /* Done. Store the total size of the SOM. */
3792 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
3794 /* Now that the symbol table information is complete, build and
3795 write the symbol table. */
3796 if (! som_build_and_write_symbol_table (abfd))
3799 /* Subspaces are written first so that we can set up information
3800 about them in their containing spaces as the subspace is written. */
3802 /* Seek to the start of the subspace dictionary records. */
3803 location = obj_som_file_hdr (abfd)->subspace_location;
3804 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3807 section = abfd->sections;
3808 /* Now for each loadable space write out records for its subspaces. */
3809 for (i = 0; i < num_spaces; i++)
3811 asection *subsection;
3814 while (!som_is_space (section))
3815 section = section->next;
3817 /* Now look for all its subspaces. */
3818 for (subsection = abfd->sections;
3820 subsection = subsection->next)
3823 /* Skip any section which does not correspond to a space
3824 or subspace. Or does not have SEC_ALLOC set (and therefore
3825 has no real bits on the disk). */
3826 if (!som_is_subspace (subsection)
3827 || !som_is_container (section, subsection)
3828 || (subsection->flags & SEC_ALLOC) == 0)
3831 /* If this is the first subspace for this space, then save
3832 the index of the subspace in its containing space. Also
3833 set "is_loadable" in the containing space. */
3835 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3837 som_section_data (section)->space_dict->is_loadable = 1;
3838 som_section_data (section)->space_dict->subspace_index
3842 /* Increment the number of subspaces seen and the number of
3843 subspaces contained within the current space. */
3845 som_section_data (section)->space_dict->subspace_quantity++;
3847 /* Mark the index of the current space within the subspace's
3848 dictionary record. */
3849 som_section_data (subsection)->subspace_dict->space_index = i;
3851 /* Dump the current subspace header. */
3852 amt = sizeof (struct som_subspace_dictionary_record);
3853 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3857 /* Goto the next section. */
3858 section = section->next;
3861 /* Now repeat the process for unloadable subspaces. */
3862 section = abfd->sections;
3863 /* Now for each space write out records for its subspaces. */
3864 for (i = 0; i < num_spaces; i++)
3866 asection *subsection;
3869 while (!som_is_space (section))
3870 section = section->next;
3872 /* Now look for all its subspaces. */
3873 for (subsection = abfd->sections;
3875 subsection = subsection->next)
3878 /* Skip any section which does not correspond to a space or
3879 subspace, or which SEC_ALLOC set (and therefore handled
3880 in the loadable spaces/subspaces code above). */
3882 if (!som_is_subspace (subsection)
3883 || !som_is_container (section, subsection)
3884 || (subsection->flags & SEC_ALLOC) != 0)
3887 /* If this is the first subspace for this space, then save
3888 the index of the subspace in its containing space. Clear
3891 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3893 som_section_data (section)->space_dict->is_loadable = 0;
3894 som_section_data (section)->space_dict->subspace_index
3898 /* Increment the number of subspaces seen and the number of
3899 subspaces contained within the current space. */
3900 som_section_data (section)->space_dict->subspace_quantity++;
3903 /* Mark the index of the current space within the subspace's
3904 dictionary record. */
3905 som_section_data (subsection)->subspace_dict->space_index = i;
3907 /* Dump this subspace header. */
3908 amt = sizeof (struct som_subspace_dictionary_record);
3909 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3913 /* Goto the next section. */
3914 section = section->next;
3917 /* All the subspace dictionary records are written, and all the
3918 fields are set up in the space dictionary records.
3920 Seek to the right location and start writing the space
3921 dictionary records. */
3922 location = obj_som_file_hdr (abfd)->space_location;
3923 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3926 section = abfd->sections;
3927 for (i = 0; i < num_spaces; i++)
3930 while (!som_is_space (section))
3931 section = section->next;
3933 /* Dump its header. */
3934 amt = sizeof (struct space_dictionary_record);
3935 if (bfd_bwrite ((PTR) som_section_data (section)->space_dict,
3939 /* Goto the next section. */
3940 section = section->next;
3943 /* Write the compilation unit record if there is one. */
3944 if (obj_som_compilation_unit (abfd))
3946 location = obj_som_file_hdr (abfd)->compiler_location;
3947 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3951 if (bfd_bwrite ((PTR) obj_som_compilation_unit (abfd), amt, abfd) != amt)
3955 /* Setting of the system_id has to happen very late now that copying of
3956 BFD private data happens *after* section contents are set. */
3957 if (abfd->flags & (EXEC_P | DYNAMIC))
3958 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
3959 else if (bfd_get_mach (abfd) == pa20)
3960 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
3961 else if (bfd_get_mach (abfd) == pa11)
3962 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
3964 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
3966 /* Compute the checksum for the file header just before writing
3967 the header to disk. */
3968 obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
3970 /* Only thing left to do is write out the file header. It is always
3971 at location zero. Seek there and write it. */
3972 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3974 amt = sizeof (struct header);
3975 if (bfd_bwrite ((PTR) obj_som_file_hdr (abfd), amt, abfd) != amt)
3978 /* Now write the exec header. */
3979 if (abfd->flags & (EXEC_P | DYNAMIC))
3981 long tmp, som_length;
3982 struct som_exec_auxhdr *exec_header;
3984 exec_header = obj_som_exec_hdr (abfd);
3985 exec_header->exec_entry = bfd_get_start_address (abfd);
3986 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
3988 /* Oh joys. Ram some of the BSS data into the DATA section
3989 to be compatible with how the hp linker makes objects
3990 (saves memory space). */
3991 tmp = exec_header->exec_dsize;
3992 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
3993 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
3994 if (exec_header->exec_bsize < 0)
3995 exec_header->exec_bsize = 0;
3996 exec_header->exec_dsize = tmp;
3998 /* Now perform some sanity checks. The idea is to catch bogons now and
3999 inform the user, instead of silently generating a bogus file. */
4000 som_length = obj_som_file_hdr (abfd)->som_length;
4001 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
4002 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
4004 bfd_set_error (bfd_error_bad_value);
4008 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
4013 if (bfd_bwrite ((PTR) exec_header, amt, abfd) != amt)
4019 /* Compute and return the checksum for a SOM file header. */
4021 static unsigned long
4022 som_compute_checksum (abfd)
4025 unsigned long checksum, count, i;
4026 unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
4029 count = sizeof (struct header) / sizeof (unsigned long);
4030 for (i = 0; i < count; i++)
4031 checksum ^= *(buffer + i);
4037 som_bfd_derive_misc_symbol_info (abfd, sym, info)
4038 bfd *abfd ATTRIBUTE_UNUSED;
4040 struct som_misc_symbol_info *info;
4043 memset (info, 0, sizeof (struct som_misc_symbol_info));
4045 /* The HP SOM linker requires detailed type information about
4046 all symbols (including undefined symbols!). Unfortunately,
4047 the type specified in an import/export statement does not
4048 always match what the linker wants. Severe braindamage. */
4050 /* Section symbols will not have a SOM symbol type assigned to
4051 them yet. Assign all section symbols type ST_DATA. */
4052 if (sym->flags & BSF_SECTION_SYM)
4053 info->symbol_type = ST_DATA;
4056 /* For BFD style common, the linker will choke unless we set the
4057 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
4058 if (bfd_is_com_section (sym->section))
4060 info->symbol_type = ST_STORAGE;
4061 info->symbol_scope = SS_UNSAT;
4064 /* It is possible to have a symbol without an associated
4065 type. This happens if the user imported the symbol
4066 without a type and the symbol was never defined
4067 locally. If BSF_FUNCTION is set for this symbol, then
4068 assign it type ST_CODE (the HP linker requires undefined
4069 external functions to have type ST_CODE rather than ST_ENTRY). */
4070 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4071 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4072 && bfd_is_und_section (sym->section)
4073 && sym->flags & BSF_FUNCTION)
4074 info->symbol_type = ST_CODE;
4076 /* Handle function symbols which were defined in this file.
4077 They should have type ST_ENTRY. Also retrieve the argument
4078 relocation bits from the SOM backend information. */
4079 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4080 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4081 && (sym->flags & BSF_FUNCTION))
4082 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4083 && (sym->flags & BSF_FUNCTION)))
4085 info->symbol_type = ST_ENTRY;
4086 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4087 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4090 /* For unknown symbols set the symbol's type based on the symbol's
4091 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4092 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4094 if (sym->section->flags & SEC_CODE)
4095 info->symbol_type = ST_CODE;
4097 info->symbol_type = ST_DATA;
4100 /* From now on it's a very simple mapping. */
4101 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4102 info->symbol_type = ST_ABSOLUTE;
4103 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4104 info->symbol_type = ST_CODE;
4105 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4106 info->symbol_type = ST_DATA;
4107 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4108 info->symbol_type = ST_MILLICODE;
4109 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4110 info->symbol_type = ST_PLABEL;
4111 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4112 info->symbol_type = ST_PRI_PROG;
4113 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4114 info->symbol_type = ST_SEC_PROG;
4117 /* Now handle the symbol's scope. Exported data which is not
4118 in the common section has scope SS_UNIVERSAL. Note scope
4119 of common symbols was handled earlier! */
4120 if (bfd_is_com_section (sym->section))
4122 else if (bfd_is_und_section (sym->section))
4123 info->symbol_scope = SS_UNSAT;
4124 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
4125 info->symbol_scope = SS_UNIVERSAL;
4126 /* Anything else which is not in the common section has scope
4129 info->symbol_scope = SS_LOCAL;
4131 /* Now set the symbol_info field. It has no real meaning
4132 for undefined or common symbols, but the HP linker will
4133 choke if it's not set to some "reasonable" value. We
4134 use zero as a reasonable value. */
4135 if (bfd_is_com_section (sym->section)
4136 || bfd_is_und_section (sym->section)
4137 || bfd_is_abs_section (sym->section))
4138 info->symbol_info = 0;
4139 /* For all other symbols, the symbol_info field contains the
4140 subspace index of the space this symbol is contained in. */
4142 info->symbol_info = sym->section->target_index;
4144 /* Set the symbol's value. */
4145 info->symbol_value = sym->value + sym->section->vma;
4147 /* The secondary_def field is for "weak" symbols. */
4148 if (sym->flags & BSF_WEAK)
4149 info->secondary_def = TRUE;
4151 info->secondary_def = FALSE;
4153 /* The is_comdat, is_common and dup_common fields provide various
4156 For data symbols, setting IS_COMMON provides Fortran style common
4157 (duplicate definitions and overlapped initialization). Setting both
4158 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4159 definitions as long as they are all the same length). In a shared
4160 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4161 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4162 symbol except in that it loses its IS_COMDAT flag in a shared link.
4164 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4165 DUP_COMMON code symbols are not exported from shared libraries.
4166 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4168 We take a simplified approach to setting the is_comdat, is_common
4169 and dup_common flags in symbols based on the flag settings of their
4170 subspace. This avoids having to add directives like `.comdat' but
4171 the linker behavior is probably undefined if there is more than one
4172 universal symbol (comdat key sysmbol) in a subspace.
4174 The behavior of these flags is not well documentmented, so there
4175 may be bugs and some surprising interactions with other flags. */
4176 if (som_section_data (sym->section)
4177 && som_section_data (sym->section)->subspace_dict
4178 && info->symbol_scope == SS_UNIVERSAL
4179 && (info->symbol_type == ST_ENTRY
4180 || info->symbol_type == ST_CODE
4181 || info->symbol_type == ST_DATA))
4184 = som_section_data (sym->section)->subspace_dict->is_comdat;
4186 = som_section_data (sym->section)->subspace_dict->is_common;
4188 = som_section_data (sym->section)->subspace_dict->dup_common;
4192 /* Build and write, in one big chunk, the entire symbol table for
4196 som_build_and_write_symbol_table (abfd)
4199 unsigned int num_syms = bfd_get_symcount (abfd);
4200 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4201 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4202 struct symbol_dictionary_record *som_symtab = NULL;
4204 bfd_size_type symtab_size;
4206 /* Compute total symbol table size and allocate a chunk of memory
4207 to hold the symbol table as we build it. */
4208 symtab_size = num_syms;
4209 symtab_size *= sizeof (struct symbol_dictionary_record);
4210 som_symtab = (struct symbol_dictionary_record *) bfd_zmalloc (symtab_size);
4211 if (som_symtab == NULL && symtab_size != 0)
4214 /* Walk over each symbol. */
4215 for (i = 0; i < num_syms; i++)
4217 struct som_misc_symbol_info info;
4219 /* This is really an index into the symbol strings table.
4220 By the time we get here, the index has already been
4221 computed and stored into the name field in the BFD symbol. */
4222 som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset;
4224 /* Derive SOM information from the BFD symbol. */
4225 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4228 som_symtab[i].symbol_type = info.symbol_type;
4229 som_symtab[i].symbol_scope = info.symbol_scope;
4230 som_symtab[i].arg_reloc = info.arg_reloc;
4231 som_symtab[i].symbol_info = info.symbol_info;
4232 som_symtab[i].xleast = 3;
4233 som_symtab[i].symbol_value = info.symbol_value | info.priv_level;
4234 som_symtab[i].secondary_def = info.secondary_def;
4235 som_symtab[i].is_comdat = info.is_comdat;
4236 som_symtab[i].is_common = info.is_common;
4237 som_symtab[i].dup_common = info.dup_common;
4240 /* Everything is ready, seek to the right location and
4241 scribble out the symbol table. */
4242 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4245 if (bfd_bwrite ((PTR) som_symtab, symtab_size, abfd) != symtab_size)
4248 if (som_symtab != NULL)
4252 if (som_symtab != NULL)
4257 /* Write an object in SOM format. */
4260 som_write_object_contents (abfd)
4263 if (! abfd->output_has_begun)
4265 /* Set up fixed parts of the file, space, and subspace headers.
4266 Notify the world that output has begun. */
4267 som_prep_headers (abfd);
4268 abfd->output_has_begun = TRUE;
4269 /* Start writing the object file. This include all the string
4270 tables, fixup streams, and other portions of the object file. */
4271 som_begin_writing (abfd);
4274 return (som_finish_writing (abfd));
4277 /* Read and save the string table associated with the given BFD. */
4280 som_slurp_string_table (abfd)
4286 /* Use the saved version if its available. */
4287 if (obj_som_stringtab (abfd) != NULL)
4290 /* I don't think this can currently happen, and I'm not sure it should
4291 really be an error, but it's better than getting unpredictable results
4292 from the host's malloc when passed a size of zero. */
4293 if (obj_som_stringtab_size (abfd) == 0)
4295 bfd_set_error (bfd_error_no_symbols);
4299 /* Allocate and read in the string table. */
4300 amt = obj_som_stringtab_size (abfd);
4301 stringtab = bfd_zmalloc (amt);
4302 if (stringtab == NULL)
4305 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4308 if (bfd_bread (stringtab, amt, abfd) != amt)
4311 /* Save our results and return success. */
4312 obj_som_stringtab (abfd) = stringtab;
4316 /* Return the amount of data (in bytes) required to hold the symbol
4317 table for this object. */
4320 som_get_symtab_upper_bound (abfd)
4323 if (!som_slurp_symbol_table (abfd))
4326 return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *));
4329 /* Convert from a SOM subspace index to a BFD section. */
4332 bfd_section_from_som_symbol (abfd, symbol)
4334 struct symbol_dictionary_record *symbol;
4338 /* The meaning of the symbol_info field changes for functions
4339 within executables. So only use the quick symbol_info mapping for
4340 incomplete objects and non-function symbols in executables. */
4341 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4342 || (symbol->symbol_type != ST_ENTRY
4343 && symbol->symbol_type != ST_PRI_PROG
4344 && symbol->symbol_type != ST_SEC_PROG
4345 && symbol->symbol_type != ST_MILLICODE))
4347 int index = symbol->symbol_info;
4348 for (section = abfd->sections; section != NULL; section = section->next)
4349 if (section->target_index == index && som_is_subspace (section))
4352 /* Could be a symbol from an external library (such as an OMOS
4353 shared library). Don't abort. */
4354 return bfd_abs_section_ptr;
4359 unsigned int value = symbol->symbol_value;
4361 /* For executables we will have to use the symbol's address and
4362 find out what section would contain that address. Yuk. */
4363 for (section = abfd->sections; section; section = section->next)
4365 if (value >= section->vma
4366 && value <= section->vma + section->size
4367 && som_is_subspace (section))
4371 /* Could be a symbol from an external library (such as an OMOS
4372 shared library). Don't abort. */
4373 return bfd_abs_section_ptr;
4378 /* Read and save the symbol table associated with the given BFD. */
4381 som_slurp_symbol_table (abfd)
4384 int symbol_count = bfd_get_symcount (abfd);
4385 int symsize = sizeof (struct symbol_dictionary_record);
4387 struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4388 som_symbol_type *sym, *symbase;
4391 /* Return saved value if it exists. */
4392 if (obj_som_symtab (abfd) != NULL)
4393 goto successful_return;
4395 /* Special case. This is *not* an error. */
4396 if (symbol_count == 0)
4397 goto successful_return;
4399 if (!som_slurp_string_table (abfd))
4402 stringtab = obj_som_stringtab (abfd);
4405 amt *= sizeof (som_symbol_type);
4406 symbase = (som_symbol_type *) bfd_zmalloc (amt);
4407 if (symbase == NULL)
4410 /* Read in the external SOM representation. */
4413 buf = bfd_malloc (amt);
4414 if (buf == NULL && amt != 0)
4416 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4418 if (bfd_bread (buf, amt, abfd) != amt)
4421 /* Iterate over all the symbols and internalize them. */
4422 endbufp = buf + symbol_count;
4423 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4426 /* I don't think we care about these. */
4427 if (bufp->symbol_type == ST_SYM_EXT
4428 || bufp->symbol_type == ST_ARG_EXT)
4431 /* Set some private data we care about. */
4432 if (bufp->symbol_type == ST_NULL)
4433 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4434 else if (bufp->symbol_type == ST_ABSOLUTE)
4435 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4436 else if (bufp->symbol_type == ST_DATA)
4437 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4438 else if (bufp->symbol_type == ST_CODE)
4439 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4440 else if (bufp->symbol_type == ST_PRI_PROG)
4441 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4442 else if (bufp->symbol_type == ST_SEC_PROG)
4443 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4444 else if (bufp->symbol_type == ST_ENTRY)
4445 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4446 else if (bufp->symbol_type == ST_MILLICODE)
4447 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4448 else if (bufp->symbol_type == ST_PLABEL)
4449 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4451 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4452 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc;
4454 /* Some reasonable defaults. */
4455 sym->symbol.the_bfd = abfd;
4456 sym->symbol.name = bufp->name.n_strx + stringtab;
4457 sym->symbol.value = bufp->symbol_value;
4458 sym->symbol.section = 0;
4459 sym->symbol.flags = 0;
4461 switch (bufp->symbol_type)
4465 sym->symbol.flags |= BSF_FUNCTION;
4466 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4467 sym->symbol.value & 0x3;
4468 sym->symbol.value &= ~0x3;
4475 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4476 sym->symbol.value & 0x3;
4477 sym->symbol.value &= ~0x3;
4478 /* If the symbol's scope is SS_UNSAT, then these are
4479 undefined function symbols. */
4480 if (bufp->symbol_scope == SS_UNSAT)
4481 sym->symbol.flags |= BSF_FUNCTION;
4487 /* Handle scoping and section information. */
4488 switch (bufp->symbol_scope)
4490 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4491 so the section associated with this symbol can't be known. */
4493 if (bufp->symbol_type != ST_STORAGE)
4494 sym->symbol.section = bfd_und_section_ptr;
4496 sym->symbol.section = bfd_com_section_ptr;
4497 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4501 if (bufp->symbol_type != ST_STORAGE)
4502 sym->symbol.section = bfd_und_section_ptr;
4504 sym->symbol.section = bfd_com_section_ptr;
4508 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4509 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4510 sym->symbol.value -= sym->symbol.section->vma;
4514 /* SS_GLOBAL and SS_LOCAL are two names for the same thing.
4515 Sound dumb? It is. */
4519 sym->symbol.flags |= BSF_LOCAL;
4520 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4521 sym->symbol.value -= sym->symbol.section->vma;
4525 /* Check for a weak symbol. */
4526 if (bufp->secondary_def)
4527 sym->symbol.flags |= BSF_WEAK;
4529 /* Mark section symbols and symbols used by the debugger.
4530 Note $START$ is a magic code symbol, NOT a section symbol. */
4531 if (sym->symbol.name[0] == '$'
4532 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4533 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4534 sym->symbol.flags |= BSF_SECTION_SYM;
4535 else if (!strncmp (sym->symbol.name, "L$0\002", 4))
4537 sym->symbol.flags |= BSF_SECTION_SYM;
4538 sym->symbol.name = sym->symbol.section->name;
4540 else if (!strncmp (sym->symbol.name, "L$0\001", 4))
4541 sym->symbol.flags |= BSF_DEBUGGING;
4543 /* Note increment at bottom of loop, since we skip some symbols
4544 we can not include it as part of the for statement. */
4548 /* We modify the symbol count to record the number of BFD symbols we
4550 bfd_get_symcount (abfd) = sym - symbase;
4552 /* Save our results and return success. */
4553 obj_som_symtab (abfd) = symbase;
4565 /* Canonicalize a SOM symbol table. Return the number of entries
4566 in the symbol table. */
4569 som_canonicalize_symtab (abfd, location)
4574 som_symbol_type *symbase;
4576 if (!som_slurp_symbol_table (abfd))
4579 i = bfd_get_symcount (abfd);
4580 symbase = obj_som_symtab (abfd);
4582 for (; i > 0; i--, location++, symbase++)
4583 *location = &symbase->symbol;
4585 /* Final null pointer. */
4587 return (bfd_get_symcount (abfd));
4590 /* Make a SOM symbol. There is nothing special to do here. */
4593 som_make_empty_symbol (abfd)
4596 bfd_size_type amt = sizeof (som_symbol_type);
4597 som_symbol_type *new = (som_symbol_type *) bfd_zalloc (abfd, amt);
4600 new->symbol.the_bfd = abfd;
4602 return &new->symbol;
4605 /* Print symbol information. */
4608 som_print_symbol (abfd, afile, symbol, how)
4612 bfd_print_symbol_type how;
4614 FILE *file = (FILE *) afile;
4617 case bfd_print_symbol_name:
4618 fprintf (file, "%s", symbol->name);
4620 case bfd_print_symbol_more:
4621 fprintf (file, "som ");
4622 fprintf_vma (file, symbol->value);
4623 fprintf (file, " %lx", (long) symbol->flags);
4625 case bfd_print_symbol_all:
4627 const char *section_name;
4628 section_name = symbol->section ? symbol->section->name : "(*none*)";
4629 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
4630 fprintf (file, " %s\t%s", section_name, symbol->name);
4637 som_bfd_is_local_label_name (abfd, name)
4638 bfd *abfd ATTRIBUTE_UNUSED;
4641 return (name[0] == 'L' && name[1] == '$');
4644 /* Count or process variable-length SOM fixup records.
4646 To avoid code duplication we use this code both to compute the number
4647 of relocations requested by a stream, and to internalize the stream.
4649 When computing the number of relocations requested by a stream the
4650 variables rptr, section, and symbols have no meaning.
4652 Return the number of relocations requested by the fixup stream. When
4655 This needs at least two or three more passes to get it cleaned up. */
4658 som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
4659 unsigned char *fixup;
4661 arelent *internal_relocs;
4664 bfd_boolean just_count;
4666 unsigned int op, varname, deallocate_contents = 0;
4667 unsigned char *end_fixups = &fixup[end];
4668 const struct fixup_format *fp;
4670 unsigned char *save_fixup;
4671 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4673 arelent *rptr = internal_relocs;
4674 unsigned int offset = 0;
4676 #define var(c) variables[(c) - 'A']
4677 #define push(v) (*sp++ = (v))
4678 #define pop() (*--sp)
4679 #define emptystack() (sp == stack)
4681 som_initialize_reloc_queue (reloc_queue);
4682 memset (variables, 0, sizeof (variables));
4683 memset (stack, 0, sizeof (stack));
4686 saved_unwind_bits = 0;
4689 while (fixup < end_fixups)
4692 /* Save pointer to the start of this fixup. We'll use
4693 it later to determine if it is necessary to put this fixup
4697 /* Get the fixup code and its associated format. */
4699 fp = &som_fixup_formats[op];
4701 /* Handle a request for a previous fixup. */
4702 if (*fp->format == 'P')
4704 /* Get pointer to the beginning of the prev fixup, move
4705 the repeated fixup to the head of the queue. */
4706 fixup = reloc_queue[fp->D].reloc;
4707 som_reloc_queue_fix (reloc_queue, fp->D);
4710 /* Get the fixup code and its associated format. */
4712 fp = &som_fixup_formats[op];
4715 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4717 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4718 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4720 rptr->address = offset;
4721 rptr->howto = &som_hppa_howto_table[op];
4723 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4726 /* Set default input length to 0. Get the opcode class index
4730 var ('U') = saved_unwind_bits;
4732 /* Get the opcode format. */
4735 /* Process the format string. Parsing happens in two phases,
4736 parse RHS, then assign to LHS. Repeat until no more
4737 characters in the format string. */
4740 /* The variable this pass is going to compute a value for. */
4743 /* Start processing RHS. Continue until a NULL or '=' is found. */
4748 /* If this is a variable, push it on the stack. */
4752 /* If this is a lower case letter, then it represents
4753 additional data from the fixup stream to be pushed onto
4755 else if (ISLOWER (c))
4757 int bits = (c - 'a') * 8;
4758 for (v = 0; c > 'a'; --c)
4759 v = (v << 8) | *fixup++;
4761 v = sign_extend (v, bits);
4765 /* A decimal constant. Push it on the stack. */
4766 else if (ISDIGIT (c))
4769 while (ISDIGIT (*cp))
4770 v = (v * 10) + (*cp++ - '0');
4774 /* An operator. Pop two two values from the stack and
4775 use them as operands to the given operation. Push
4776 the result of the operation back on the stack. */
4798 while (*cp && *cp != '=');
4800 /* Move over the equal operator. */
4803 /* Pop the RHS off the stack. */
4806 /* Perform the assignment. */
4809 /* Handle side effects. and special 'O' stack cases. */
4812 /* Consume some bytes from the input space. */
4816 /* A symbol to use in the relocation. Make a note
4817 of this if we are not just counting. */
4820 rptr->sym_ptr_ptr = &symbols[c];
4822 /* Argument relocation bits for a function call. */
4826 unsigned int tmp = var ('R');
4829 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
4830 && R_PCREL_CALL + 10 > op)
4831 || (som_hppa_howto_table[op].type == R_ABS_CALL
4832 && R_ABS_CALL + 10 > op))
4834 /* Simple encoding. */
4841 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
4843 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
4845 rptr->addend |= 1 << 8 | 1 << 6;
4847 rptr->addend |= 1 << 8;
4851 unsigned int tmp1, tmp2;
4853 /* First part is easy -- low order two bits are
4854 directly copied, then shifted away. */
4855 rptr->addend = tmp & 0x3;
4858 /* Diving the result by 10 gives us the second
4859 part. If it is 9, then the first two words
4860 are a double precision paramater, else it is
4861 3 * the first arg bits + the 2nd arg bits. */
4865 rptr->addend += (0xe << 6);
4868 /* Get the two pieces. */
4871 /* Put them in the addend. */
4872 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
4875 /* What's left is the third part. It's unpacked
4876 just like the second. */
4878 rptr->addend += (0xe << 2);
4883 rptr->addend += (tmp2 << 4) + (tmp << 2);
4886 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
4889 /* Handle the linker expression stack. */
4894 subop = comp1_opcodes;
4897 subop = comp2_opcodes;
4900 subop = comp3_opcodes;
4905 while (*subop <= (unsigned char) c)
4909 /* The lower 32unwind bits must be persistent. */
4911 saved_unwind_bits = var ('U');
4919 /* If we used a previous fixup, clean up after it. */
4922 fixup = save_fixup + 1;
4926 else if (fixup > save_fixup + 1)
4927 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
4929 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
4931 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
4932 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
4934 /* Done with a single reloction. Loop back to the top. */
4937 if (som_hppa_howto_table[op].type == R_ENTRY)
4938 rptr->addend = var ('T');
4939 else if (som_hppa_howto_table[op].type == R_EXIT)
4940 rptr->addend = var ('U');
4941 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
4942 || som_hppa_howto_table[op].type == R_ABS_CALL)
4944 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
4946 /* Try what was specified in R_DATA_OVERRIDE first
4947 (if anything). Then the hard way using the
4948 section contents. */
4949 rptr->addend = var ('V');
4951 if (rptr->addend == 0 && !section->contents)
4953 /* Got to read the damn contents first. We don't
4954 bother saving the contents (yet). Add it one
4955 day if the need arises. */
4957 if (!bfd_malloc_and_get_section (section->owner, section,
4960 if (contents != NULL)
4962 return (unsigned) -1;
4964 section->contents = contents;
4965 deallocate_contents = 1;
4967 else if (rptr->addend == 0)
4968 rptr->addend = bfd_get_32 (section->owner,
4970 + offset - var ('L')));
4974 rptr->addend = var ('V');
4978 /* Now that we've handled a "full" relocation, reset
4980 memset (variables, 0, sizeof (variables));
4981 memset (stack, 0, sizeof (stack));
4984 if (deallocate_contents)
4985 free (section->contents);
4995 /* Read in the relocs (aka fixups in SOM terms) for a section.
4997 som_get_reloc_upper_bound calls this routine with JUST_COUNT
4998 set to TRUE to indicate it only needs a count of the number
4999 of actual relocations. */
5002 som_slurp_reloc_table (abfd, section, symbols, just_count)
5006 bfd_boolean just_count;
5008 char *external_relocs;
5009 unsigned int fixup_stream_size;
5010 arelent *internal_relocs;
5011 unsigned int num_relocs;
5014 fixup_stream_size = som_section_data (section)->reloc_size;
5015 /* If there were no relocations, then there is nothing to do. */
5016 if (section->reloc_count == 0)
5019 /* If reloc_count is -1, then the relocation stream has not been
5020 parsed. We must do so now to know how many relocations exist. */
5021 if (section->reloc_count == (unsigned) -1)
5023 amt = fixup_stream_size;
5024 external_relocs = (char *) bfd_malloc (amt);
5025 if (external_relocs == (char *) NULL)
5027 /* Read in the external forms. */
5029 obj_som_reloc_filepos (abfd) + section->rel_filepos,
5033 if (bfd_bread (external_relocs, amt, abfd) != amt)
5036 /* Let callers know how many relocations found.
5037 also save the relocation stream as we will
5039 section->reloc_count = som_set_reloc_info (external_relocs,
5041 NULL, NULL, NULL, TRUE);
5043 som_section_data (section)->reloc_stream = external_relocs;
5046 /* If the caller only wanted a count, then return now. */
5050 num_relocs = section->reloc_count;
5051 external_relocs = som_section_data (section)->reloc_stream;
5052 /* Return saved information about the relocations if it is available. */
5053 if (section->relocation != (arelent *) NULL)
5057 amt *= sizeof (arelent);
5058 internal_relocs = (arelent *) bfd_zalloc (abfd, (amt));
5059 if (internal_relocs == (arelent *) NULL)
5062 /* Process and internalize the relocations. */
5063 som_set_reloc_info (external_relocs, fixup_stream_size,
5064 internal_relocs, section, symbols, FALSE);
5066 /* We're done with the external relocations. Free them. */
5067 free (external_relocs);
5068 som_section_data (section)->reloc_stream = NULL;
5070 /* Save our results and return success. */
5071 section->relocation = internal_relocs;
5075 /* Return the number of bytes required to store the relocation
5076 information associated with the given section. */
5079 som_get_reloc_upper_bound (abfd, asect)
5083 /* If section has relocations, then read in the relocation stream
5084 and parse it to determine how many relocations exist. */
5085 if (asect->flags & SEC_RELOC)
5087 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
5089 return (asect->reloc_count + 1) * sizeof (arelent *);
5091 /* There are no relocations. */
5095 /* Convert relocations from SOM (external) form into BFD internal
5096 form. Return the number of relocations. */
5099 som_canonicalize_reloc (abfd, section, relptr, symbols)
5108 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
5111 count = section->reloc_count;
5112 tblptr = section->relocation;
5115 *relptr++ = tblptr++;
5117 *relptr = (arelent *) NULL;
5118 return section->reloc_count;
5121 extern const bfd_target som_vec;
5123 /* A hook to set up object file dependent section information. */
5126 som_new_section_hook (abfd, newsect)
5130 bfd_size_type amt = sizeof (struct som_section_data_struct);
5131 newsect->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
5132 if (!newsect->used_by_bfd)
5134 newsect->alignment_power = 3;
5136 /* We allow more than three sections internally. */
5140 /* Copy any private info we understand from the input symbol
5141 to the output symbol. */
5144 som_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol)
5150 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5151 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5153 /* One day we may try to grok other private data. */
5154 if (ibfd->xvec->flavour != bfd_target_som_flavour
5155 || obfd->xvec->flavour != bfd_target_som_flavour)
5158 /* The only private information we need to copy is the argument relocation
5160 output_symbol->tc_data.ap.hppa_arg_reloc =
5161 input_symbol->tc_data.ap.hppa_arg_reloc;
5166 /* Copy any private info we understand from the input section
5167 to the output section. */
5170 som_bfd_copy_private_section_data (ibfd, isection, obfd, osection)
5178 /* One day we may try to grok other private data. */
5179 if (ibfd->xvec->flavour != bfd_target_som_flavour
5180 || obfd->xvec->flavour != bfd_target_som_flavour
5181 || (!som_is_space (isection) && !som_is_subspace (isection)))
5184 amt = sizeof (struct som_copyable_section_data_struct);
5185 som_section_data (osection)->copy_data =
5186 (struct som_copyable_section_data_struct *) bfd_zalloc (obfd, amt);
5187 if (som_section_data (osection)->copy_data == NULL)
5190 memcpy (som_section_data (osection)->copy_data,
5191 som_section_data (isection)->copy_data,
5192 sizeof (struct som_copyable_section_data_struct));
5194 /* Reparent if necessary. */
5195 if (som_section_data (osection)->copy_data->container)
5196 som_section_data (osection)->copy_data->container =
5197 som_section_data (osection)->copy_data->container->output_section;
5202 /* Copy any private info we understand from the input bfd
5203 to the output bfd. */
5206 som_bfd_copy_private_bfd_data (ibfd, obfd)
5209 /* One day we may try to grok other private data. */
5210 if (ibfd->xvec->flavour != bfd_target_som_flavour
5211 || obfd->xvec->flavour != bfd_target_som_flavour)
5214 /* Allocate some memory to hold the data we need. */
5215 obj_som_exec_data (obfd) = (struct som_exec_data *)
5216 bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5217 if (obj_som_exec_data (obfd) == NULL)
5220 /* Now copy the data. */
5221 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5222 sizeof (struct som_exec_data));
5227 /* Set backend info for sections which can not be described
5228 in the BFD data structures. */
5231 bfd_som_set_section_attributes (section, defined, private, sort_key, spnum)
5235 unsigned int sort_key;
5238 /* Allocate memory to hold the magic information. */
5239 if (som_section_data (section)->copy_data == NULL)
5241 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5242 som_section_data (section)->copy_data =
5243 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5245 if (som_section_data (section)->copy_data == NULL)
5248 som_section_data (section)->copy_data->sort_key = sort_key;
5249 som_section_data (section)->copy_data->is_defined = defined;
5250 som_section_data (section)->copy_data->is_private = private;
5251 som_section_data (section)->copy_data->container = section;
5252 som_section_data (section)->copy_data->space_number = spnum;
5256 /* Set backend info for subsections which can not be described
5257 in the BFD data structures. */
5260 bfd_som_set_subsection_attributes (section, container, access,
5261 sort_key, quadrant, comdat,
5264 asection *container;
5266 unsigned int sort_key;
5267 int quadrant, comdat, common, dup_common;
5269 /* Allocate memory to hold the magic information. */
5270 if (som_section_data (section)->copy_data == NULL)
5272 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5273 som_section_data (section)->copy_data =
5274 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5276 if (som_section_data (section)->copy_data == NULL)
5279 som_section_data (section)->copy_data->sort_key = sort_key;
5280 som_section_data (section)->copy_data->access_control_bits = access;
5281 som_section_data (section)->copy_data->quadrant = quadrant;
5282 som_section_data (section)->copy_data->container = container;
5283 som_section_data (section)->copy_data->is_comdat = comdat;
5284 som_section_data (section)->copy_data->is_common = common;
5285 som_section_data (section)->copy_data->dup_common = dup_common;
5289 /* Set the full SOM symbol type. SOM needs far more symbol information
5290 than any other object file format I'm aware of. It is mandatory
5291 to be able to know if a symbol is an entry point, millicode, data,
5292 code, absolute, storage request, or procedure label. If you get
5293 the symbol type wrong your program will not link. */
5296 bfd_som_set_symbol_type (symbol, type)
5300 som_symbol_data (symbol)->som_type = type;
5303 /* Attach an auxiliary header to the BFD backend so that it may be
5304 written into the object file. */
5307 bfd_som_attach_aux_hdr (abfd, type, string)
5314 if (type == VERSION_AUX_ID)
5316 size_t len = strlen (string);
5320 pad = (4 - (len % 4));
5321 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5322 obj_som_version_hdr (abfd) =
5323 (struct user_string_aux_hdr *) bfd_zalloc (abfd, amt);
5324 if (!obj_som_version_hdr (abfd))
5326 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5327 obj_som_version_hdr (abfd)->header_id.length = len + pad;
5328 obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
5329 obj_som_version_hdr (abfd)->string_length = len;
5330 strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
5332 else if (type == COPYRIGHT_AUX_ID)
5334 int len = strlen (string);
5338 pad = (4 - (len % 4));
5339 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5340 obj_som_copyright_hdr (abfd) =
5341 (struct copyright_aux_hdr *) bfd_zalloc (abfd, amt);
5342 if (!obj_som_copyright_hdr (abfd))
5344 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5345 obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
5346 obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
5347 obj_som_copyright_hdr (abfd)->string_length = len;
5348 strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
5353 /* Attach a compilation unit header to the BFD backend so that it may be
5354 written into the object file. */
5357 bfd_som_attach_compilation_unit (abfd, name, language_name, product_id,
5361 const char *language_name;
5362 const char *product_id;
5363 const char *version_id;
5365 COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
5372 n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5373 if (n->f.n_name == NULL) \
5375 strcpy (n->f.n_name, f); \
5379 STRDUP (language_name);
5380 STRDUP (product_id);
5381 STRDUP (version_id);
5385 obj_som_compilation_unit (abfd) = n;
5391 som_get_section_contents (abfd, section, location, offset, count)
5396 bfd_size_type count;
5398 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5400 if ((bfd_size_type) (offset+count) > section->size
5401 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5402 || bfd_bread (location, count, abfd) != count)
5403 return FALSE; /* On error. */
5408 som_set_section_contents (abfd, section, location, offset, count)
5413 bfd_size_type count;
5415 if (! abfd->output_has_begun)
5417 /* Set up fixed parts of the file, space, and subspace headers.
5418 Notify the world that output has begun. */
5419 som_prep_headers (abfd);
5420 abfd->output_has_begun = TRUE;
5421 /* Start writing the object file. This include all the string
5422 tables, fixup streams, and other portions of the object file. */
5423 som_begin_writing (abfd);
5426 /* Only write subspaces which have "real" contents (eg. the contents
5427 are not generated at run time by the OS). */
5428 if (!som_is_subspace (section)
5429 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5432 /* Seek to the proper offset within the object file and write the
5434 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5435 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5438 if (bfd_bwrite (location, count, abfd) != count)
5444 som_set_arch_mach (abfd, arch, machine)
5446 enum bfd_architecture arch;
5447 unsigned long machine;
5449 /* Allow any architecture to be supported by the SOM backend. */
5450 return bfd_default_set_arch_mach (abfd, arch, machine);
5454 som_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
5455 functionname_ptr, line_ptr)
5456 bfd *abfd ATTRIBUTE_UNUSED;
5457 asection *section ATTRIBUTE_UNUSED;
5458 asymbol **symbols ATTRIBUTE_UNUSED;
5459 bfd_vma offset ATTRIBUTE_UNUSED;
5460 const char **filename_ptr ATTRIBUTE_UNUSED;
5461 const char **functionname_ptr ATTRIBUTE_UNUSED;
5462 unsigned int *line_ptr ATTRIBUTE_UNUSED;
5468 som_sizeof_headers (abfd, reloc)
5469 bfd *abfd ATTRIBUTE_UNUSED;
5470 bfd_boolean reloc ATTRIBUTE_UNUSED;
5472 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5478 /* Return the single-character symbol type corresponding to
5479 SOM section S, or '?' for an unknown SOM section. */
5482 som_section_type (s)
5485 const struct section_to_type *t;
5487 for (t = &stt[0]; t->section; t++)
5488 if (!strcmp (s, t->section))
5494 som_decode_symclass (symbol)
5499 if (bfd_is_com_section (symbol->section))
5501 if (bfd_is_und_section (symbol->section))
5503 if (bfd_is_ind_section (symbol->section))
5505 if (symbol->flags & BSF_WEAK)
5507 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5510 if (bfd_is_abs_section (symbol->section)
5511 || (som_symbol_data (symbol) != NULL
5512 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5514 else if (symbol->section)
5515 c = som_section_type (symbol->section->name);
5518 if (symbol->flags & BSF_GLOBAL)
5523 /* Return information about SOM symbol SYMBOL in RET. */
5526 som_get_symbol_info (ignore_abfd, symbol, ret)
5527 bfd *ignore_abfd ATTRIBUTE_UNUSED;
5531 ret->type = som_decode_symclass (symbol);
5532 if (ret->type != 'U')
5533 ret->value = symbol->value + symbol->section->vma;
5536 ret->name = symbol->name;
5539 /* Count the number of symbols in the archive symbol table. Necessary
5540 so that we can allocate space for all the carsyms at once. */
5543 som_bfd_count_ar_symbols (abfd, lst_header, count)
5545 struct lst_header *lst_header;
5549 unsigned int *hash_table = NULL;
5551 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5553 amt = lst_header->hash_size;
5554 amt *= sizeof (unsigned int);
5555 hash_table = (unsigned int *) bfd_malloc (amt);
5556 if (hash_table == NULL && lst_header->hash_size != 0)
5559 /* Don't forget to initialize the counter! */
5562 /* Read in the hash table. The has table is an array of 32bit file offsets
5563 which point to the hash chains. */
5564 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5567 /* Walk each chain counting the number of symbols found on that particular
5569 for (i = 0; i < lst_header->hash_size; i++)
5571 struct lst_symbol_record lst_symbol;
5573 /* An empty chain has zero as it's file offset. */
5574 if (hash_table[i] == 0)
5577 /* Seek to the first symbol in this hash chain. */
5578 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5581 /* Read in this symbol and update the counter. */
5582 amt = sizeof (lst_symbol);
5583 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5588 /* Now iterate through the rest of the symbols on this chain. */
5589 while (lst_symbol.next_entry)
5592 /* Seek to the next symbol. */
5593 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5597 /* Read the symbol in and update the counter. */
5598 amt = sizeof (lst_symbol);
5599 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5605 if (hash_table != NULL)
5610 if (hash_table != NULL)
5615 /* Fill in the canonical archive symbols (SYMS) from the archive described
5616 by ABFD and LST_HEADER. */
5619 som_bfd_fill_in_ar_symbols (abfd, lst_header, syms)
5621 struct lst_header *lst_header;
5624 unsigned int i, len;
5625 carsym *set = syms[0];
5626 unsigned int *hash_table = NULL;
5627 struct som_entry *som_dict = NULL;
5629 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5631 amt = lst_header->hash_size;
5632 amt *= sizeof (unsigned int);
5633 hash_table = (unsigned int *) bfd_malloc (amt);
5634 if (hash_table == NULL && lst_header->hash_size != 0)
5637 /* Read in the hash table. The has table is an array of 32bit file offsets
5638 which point to the hash chains. */
5639 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5642 /* Seek to and read in the SOM dictionary. We will need this to fill
5643 in the carsym's filepos field. */
5644 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5647 amt = lst_header->module_count;
5648 amt *= sizeof (struct som_entry);
5649 som_dict = (struct som_entry *) bfd_malloc (amt);
5650 if (som_dict == NULL && lst_header->module_count != 0)
5653 if (bfd_bread ((PTR) som_dict, amt, abfd) != amt)
5656 /* Walk each chain filling in the carsyms as we go along. */
5657 for (i = 0; i < lst_header->hash_size; i++)
5659 struct lst_symbol_record lst_symbol;
5661 /* An empty chain has zero as it's file offset. */
5662 if (hash_table[i] == 0)
5665 /* Seek to and read the first symbol on the chain. */
5666 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5669 amt = sizeof (lst_symbol);
5670 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5673 /* Get the name of the symbol, first get the length which is stored
5674 as a 32bit integer just before the symbol.
5676 One might ask why we don't just read in the entire string table
5677 and index into it. Well, according to the SOM ABI the string
5678 index can point *anywhere* in the archive to save space, so just
5679 using the string table would not be safe. */
5680 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5681 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5684 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5687 /* Allocate space for the name and null terminate it too. */
5688 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5691 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5696 /* Fill in the file offset. Note that the "location" field points
5697 to the SOM itself, not the ar_hdr in front of it. */
5698 set->file_offset = som_dict[lst_symbol.som_index].location
5699 - sizeof (struct ar_hdr);
5701 /* Go to the next symbol. */
5704 /* Iterate through the rest of the chain. */
5705 while (lst_symbol.next_entry)
5707 /* Seek to the next symbol and read it in. */
5708 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5712 amt = sizeof (lst_symbol);
5713 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5716 /* Seek to the name length & string and read them in. */
5717 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5718 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5721 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5724 /* Allocate space for the name and null terminate it too. */
5725 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5729 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5733 /* Fill in the file offset. Note that the "location" field points
5734 to the SOM itself, not the ar_hdr in front of it. */
5735 set->file_offset = som_dict[lst_symbol.som_index].location
5736 - sizeof (struct ar_hdr);
5738 /* Go on to the next symbol. */
5742 /* If we haven't died by now, then we successfully read the entire
5743 archive symbol table. */
5744 if (hash_table != NULL)
5746 if (som_dict != NULL)
5751 if (hash_table != NULL)
5753 if (som_dict != NULL)
5758 /* Read in the LST from the archive. */
5761 som_slurp_armap (abfd)
5764 struct lst_header lst_header;
5765 struct ar_hdr ar_header;
5766 unsigned int parsed_size;
5767 struct artdata *ardata = bfd_ardata (abfd);
5769 bfd_size_type amt = 16;
5770 int i = bfd_bread ((PTR) nextname, amt, abfd);
5772 /* Special cases. */
5778 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
5781 /* For archives without .o files there is no symbol table. */
5782 if (strncmp (nextname, "/ ", 16))
5784 bfd_has_map (abfd) = FALSE;
5788 /* Read in and sanity check the archive header. */
5789 amt = sizeof (struct ar_hdr);
5790 if (bfd_bread ((PTR) &ar_header, amt, abfd) != amt)
5793 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
5795 bfd_set_error (bfd_error_malformed_archive);
5799 /* How big is the archive symbol table entry? */
5801 parsed_size = strtol (ar_header.ar_size, NULL, 10);
5804 bfd_set_error (bfd_error_malformed_archive);
5808 /* Save off the file offset of the first real user data. */
5809 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
5811 /* Read in the library symbol table. We'll make heavy use of this
5812 in just a minute. */
5813 amt = sizeof (struct lst_header);
5814 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
5818 if (lst_header.a_magic != LIBMAGIC)
5820 bfd_set_error (bfd_error_malformed_archive);
5824 /* Count the number of symbols in the library symbol table. */
5825 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
5828 /* Get back to the start of the library symbol table. */
5829 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
5830 + sizeof (struct lst_header)), SEEK_SET) != 0)
5833 /* Initialize the cache and allocate space for the library symbols. */
5835 amt = ardata->symdef_count;
5836 amt *= sizeof (carsym);
5837 ardata->symdefs = (carsym *) bfd_alloc (abfd, amt);
5838 if (!ardata->symdefs)
5841 /* Now fill in the canonical archive symbols. */
5842 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
5845 /* Seek back to the "first" file in the archive. Note the "first"
5846 file may be the extended name table. */
5847 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
5850 /* Notify the generic archive code that we have a symbol map. */
5851 bfd_has_map (abfd) = TRUE;
5855 /* Begin preparing to write a SOM library symbol table.
5857 As part of the prep work we need to determine the number of symbols
5858 and the size of the associated string section. */
5861 som_bfd_prep_for_ar_write (abfd, num_syms, stringsize)
5863 unsigned int *num_syms, *stringsize;
5865 bfd *curr_bfd = abfd->archive_head;
5867 /* Some initialization. */
5871 /* Iterate over each BFD within this archive. */
5872 while (curr_bfd != NULL)
5874 unsigned int curr_count, i;
5875 som_symbol_type *sym;
5877 /* Don't bother for non-SOM objects. */
5878 if (curr_bfd->format != bfd_object
5879 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5881 curr_bfd = curr_bfd->next;
5885 /* Make sure the symbol table has been read, then snag a pointer
5886 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5887 but doing so avoids allocating lots of extra memory. */
5888 if (! som_slurp_symbol_table (curr_bfd))
5891 sym = obj_som_symtab (curr_bfd);
5892 curr_count = bfd_get_symcount (curr_bfd);
5894 /* Examine each symbol to determine if it belongs in the
5895 library symbol table. */
5896 for (i = 0; i < curr_count; i++, sym++)
5898 struct som_misc_symbol_info info;
5900 /* Derive SOM information from the BFD symbol. */
5901 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5903 /* Should we include this symbol? */
5904 if (info.symbol_type == ST_NULL
5905 || info.symbol_type == ST_SYM_EXT
5906 || info.symbol_type == ST_ARG_EXT)
5909 /* Only global symbols and unsatisfied commons. */
5910 if (info.symbol_scope != SS_UNIVERSAL
5911 && info.symbol_type != ST_STORAGE)
5914 /* Do no include undefined symbols. */
5915 if (bfd_is_und_section (sym->symbol.section))
5918 /* Bump the various counters, being careful to honor
5919 alignment considerations in the string table. */
5921 *stringsize = *stringsize + strlen (sym->symbol.name) + 5;
5922 while (*stringsize % 4)
5926 curr_bfd = curr_bfd->next;
5931 /* Hash a symbol name based on the hashing algorithm presented in the
5935 som_bfd_ar_symbol_hash (symbol)
5938 unsigned int len = strlen (symbol->name);
5940 /* Names with length 1 are special. */
5942 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
5944 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
5945 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
5948 /* Do the bulk of the work required to write the SOM library
5952 som_bfd_ar_write_symbol_stuff (abfd, nsyms, string_size, lst, elength)
5954 unsigned int nsyms, string_size;
5955 struct lst_header lst;
5958 file_ptr lst_filepos;
5959 char *strings = NULL, *p;
5960 struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
5962 unsigned int *hash_table = NULL;
5963 struct som_entry *som_dict = NULL;
5964 struct lst_symbol_record **last_hash_entry = NULL;
5965 unsigned int curr_som_offset, som_index = 0;
5968 amt = lst.hash_size;
5969 amt *= sizeof (unsigned int);
5970 hash_table = (unsigned int *) bfd_zmalloc (amt);
5971 if (hash_table == NULL && lst.hash_size != 0)
5974 amt = lst.module_count;
5975 amt *= sizeof (struct som_entry);
5976 som_dict = (struct som_entry *) bfd_zmalloc (amt);
5977 if (som_dict == NULL && lst.module_count != 0)
5980 amt = lst.hash_size;
5981 amt *= sizeof (struct lst_symbol_record *);
5982 last_hash_entry = ((struct lst_symbol_record **) bfd_zmalloc (amt));
5983 if (last_hash_entry == NULL && lst.hash_size != 0)
5986 /* Lots of fields are file positions relative to the start
5987 of the lst record. So save its location. */
5988 lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5990 /* Symbols have som_index fields, so we have to keep track of the
5991 index of each SOM in the archive.
5993 The SOM dictionary has (among other things) the absolute file
5994 position for the SOM which a particular dictionary entry
5995 describes. We have to compute that information as we iterate
5996 through the SOMs/symbols. */
5999 /* We add in the size of the archive header twice as the location
6000 in the SOM dictionary is the actual offset of the SOM, not the
6001 archive header before the SOM. */
6002 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end;
6004 /* Make room for the archive header and the contents of the
6005 extended string table. Note that elength includes the size
6006 of the archive header for the extended name table! */
6008 curr_som_offset += elength;
6010 /* Make sure we're properly aligned. */
6011 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
6013 /* FIXME should be done with buffers just like everything else... */
6015 amt *= sizeof (struct lst_symbol_record);
6016 lst_syms = bfd_malloc (amt);
6017 if (lst_syms == NULL && nsyms != 0)
6019 strings = bfd_malloc ((bfd_size_type) string_size);
6020 if (strings == NULL && string_size != 0)
6024 curr_lst_sym = lst_syms;
6026 curr_bfd = abfd->archive_head;
6027 while (curr_bfd != NULL)
6029 unsigned int curr_count, i;
6030 som_symbol_type *sym;
6032 /* Don't bother for non-SOM objects. */
6033 if (curr_bfd->format != bfd_object
6034 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6036 curr_bfd = curr_bfd->next;
6040 /* Make sure the symbol table has been read, then snag a pointer
6041 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6042 but doing so avoids allocating lots of extra memory. */
6043 if (! som_slurp_symbol_table (curr_bfd))
6046 sym = obj_som_symtab (curr_bfd);
6047 curr_count = bfd_get_symcount (curr_bfd);
6049 for (i = 0; i < curr_count; i++, sym++)
6051 struct som_misc_symbol_info info;
6053 /* Derive SOM information from the BFD symbol. */
6054 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6056 /* Should we include this symbol? */
6057 if (info.symbol_type == ST_NULL
6058 || info.symbol_type == ST_SYM_EXT
6059 || info.symbol_type == ST_ARG_EXT)
6062 /* Only global symbols and unsatisfied commons. */
6063 if (info.symbol_scope != SS_UNIVERSAL
6064 && info.symbol_type != ST_STORAGE)
6067 /* Do no include undefined symbols. */
6068 if (bfd_is_und_section (sym->symbol.section))
6071 /* If this is the first symbol from this SOM, then update
6072 the SOM dictionary too. */
6073 if (som_dict[som_index].location == 0)
6075 som_dict[som_index].location = curr_som_offset;
6076 som_dict[som_index].length = arelt_size (curr_bfd);
6079 /* Fill in the lst symbol record. */
6080 curr_lst_sym->hidden = 0;
6081 curr_lst_sym->secondary_def = info.secondary_def;
6082 curr_lst_sym->symbol_type = info.symbol_type;
6083 curr_lst_sym->symbol_scope = info.symbol_scope;
6084 curr_lst_sym->check_level = 0;
6085 curr_lst_sym->must_qualify = 0;
6086 curr_lst_sym->initially_frozen = 0;
6087 curr_lst_sym->memory_resident = 0;
6088 curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section);
6089 curr_lst_sym->dup_common = info.dup_common;
6090 curr_lst_sym->xleast = 3;
6091 curr_lst_sym->arg_reloc = info.arg_reloc;
6092 curr_lst_sym->name.n_strx = p - strings + 4;
6093 curr_lst_sym->qualifier_name.n_strx = 0;
6094 curr_lst_sym->symbol_info = info.symbol_info;
6095 curr_lst_sym->symbol_value = info.symbol_value | info.priv_level;
6096 curr_lst_sym->symbol_descriptor = 0;
6097 curr_lst_sym->reserved = 0;
6098 curr_lst_sym->som_index = som_index;
6099 curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6100 curr_lst_sym->next_entry = 0;
6102 /* Insert into the hash table. */
6103 if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
6105 struct lst_symbol_record *tmp;
6107 /* There is already something at the head of this hash chain,
6108 so tack this symbol onto the end of the chain. */
6109 tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size];
6111 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6113 + lst.module_count * sizeof (struct som_entry)
6114 + sizeof (struct lst_header);
6118 /* First entry in this hash chain. */
6119 hash_table[curr_lst_sym->symbol_key % lst.hash_size]
6120 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6122 + lst.module_count * sizeof (struct som_entry)
6123 + sizeof (struct lst_header);
6126 /* Keep track of the last symbol we added to this chain so we can
6127 easily update its next_entry pointer. */
6128 last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]
6131 /* Update the string table. */
6132 bfd_put_32 (abfd, strlen (sym->symbol.name), p);
6134 strcpy (p, sym->symbol.name);
6135 p += strlen (sym->symbol.name) + 1;
6138 bfd_put_8 (abfd, 0, p);
6142 /* Head to the next symbol. */
6146 /* Keep track of where each SOM will finally reside; then look
6148 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6150 /* A particular object in the archive may have an odd length; the
6151 linker requires objects begin on an even boundary. So round
6152 up the current offset as necessary. */
6153 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6154 curr_bfd = curr_bfd->next;
6158 /* Now scribble out the hash table. */
6159 amt = lst.hash_size * 4;
6160 if (bfd_bwrite ((PTR) hash_table, amt, abfd) != amt)
6163 /* Then the SOM dictionary. */
6164 amt = lst.module_count * sizeof (struct som_entry);
6165 if (bfd_bwrite ((PTR) som_dict, amt, abfd) != amt)
6168 /* The library symbols. */
6169 amt = nsyms * sizeof (struct lst_symbol_record);
6170 if (bfd_bwrite ((PTR) lst_syms, amt, abfd) != amt)
6173 /* And finally the strings. */
6175 if (bfd_bwrite ((PTR) strings, amt, abfd) != amt)
6178 if (hash_table != NULL)
6180 if (som_dict != NULL)
6182 if (last_hash_entry != NULL)
6183 free (last_hash_entry);
6184 if (lst_syms != NULL)
6186 if (strings != NULL)
6191 if (hash_table != NULL)
6193 if (som_dict != NULL)
6195 if (last_hash_entry != NULL)
6196 free (last_hash_entry);
6197 if (lst_syms != NULL)
6199 if (strings != NULL)
6205 /* Write out the LST for the archive.
6207 You'll never believe this is really how armaps are handled in SOM... */
6210 som_write_armap (abfd, elength, map, orl_count, stridx)
6212 unsigned int elength;
6213 struct orl *map ATTRIBUTE_UNUSED;
6214 unsigned int orl_count ATTRIBUTE_UNUSED;
6215 int stridx ATTRIBUTE_UNUSED;
6218 struct stat statbuf;
6219 unsigned int i, lst_size, nsyms, stringsize;
6221 struct lst_header lst;
6225 /* We'll use this for the archive's date and mode later. */
6226 if (stat (abfd->filename, &statbuf) != 0)
6228 bfd_set_error (bfd_error_system_call);
6232 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6234 /* Account for the lst header first. */
6235 lst_size = sizeof (struct lst_header);
6237 /* Start building the LST header. */
6238 /* FIXME: Do we need to examine each element to determine the
6239 largest id number? */
6240 lst.system_id = CPU_PA_RISC1_0;
6241 lst.a_magic = LIBMAGIC;
6242 lst.version_id = VERSION_ID;
6243 lst.file_time.secs = 0;
6244 lst.file_time.nanosecs = 0;
6246 lst.hash_loc = lst_size;
6247 lst.hash_size = SOM_LST_HASH_SIZE;
6249 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6250 lst_size += 4 * SOM_LST_HASH_SIZE;
6252 /* We need to count the number of SOMs in this archive. */
6253 curr_bfd = abfd->archive_head;
6254 lst.module_count = 0;
6255 while (curr_bfd != NULL)
6257 /* Only true SOM objects count. */
6258 if (curr_bfd->format == bfd_object
6259 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6261 curr_bfd = curr_bfd->next;
6263 lst.module_limit = lst.module_count;
6264 lst.dir_loc = lst_size;
6265 lst_size += sizeof (struct som_entry) * lst.module_count;
6267 /* We don't support import/export tables, auxiliary headers,
6268 or free lists yet. Make the linker work a little harder
6269 to make our life easier. */
6272 lst.export_count = 0;
6277 /* Count how many symbols we will have on the hash chains and the
6278 size of the associated string table. */
6279 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6282 lst_size += sizeof (struct lst_symbol_record) * nsyms;
6284 /* For the string table. One day we might actually use this info
6285 to avoid small seeks/reads when reading archives. */
6286 lst.string_loc = lst_size;
6287 lst.string_size = stringsize;
6288 lst_size += stringsize;
6290 /* SOM ABI says this must be zero. */
6292 lst.file_end = lst_size;
6294 /* Compute the checksum. Must happen after the entire lst header
6298 for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
6299 lst.checksum ^= *p++;
6301 sprintf (hdr.ar_name, "/ ");
6302 sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
6303 sprintf (hdr.ar_uid, "%ld", (long) getuid ());
6304 sprintf (hdr.ar_gid, "%ld", (long) getgid ());
6305 sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode);
6306 sprintf (hdr.ar_size, "%-10d", (int) lst_size);
6307 hdr.ar_fmag[0] = '`';
6308 hdr.ar_fmag[1] = '\012';
6310 /* Turn any nulls into spaces. */
6311 for (i = 0; i < sizeof (struct ar_hdr); i++)
6312 if (((char *) (&hdr))[i] == '\0')
6313 (((char *) (&hdr))[i]) = ' ';
6315 /* Scribble out the ar header. */
6316 amt = sizeof (struct ar_hdr);
6317 if (bfd_bwrite ((PTR) &hdr, amt, abfd) != amt)
6320 /* Now scribble out the lst header. */
6321 amt = sizeof (struct lst_header);
6322 if (bfd_bwrite ((PTR) &lst, amt, abfd) != amt)
6325 /* Build and write the armap. */
6326 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6333 /* Free all information we have cached for this BFD. We can always
6334 read it again later if we need it. */
6337 som_bfd_free_cached_info (abfd)
6342 if (bfd_get_format (abfd) != bfd_object)
6345 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6346 /* Free the native string and symbol tables. */
6347 FREE (obj_som_symtab (abfd));
6348 FREE (obj_som_stringtab (abfd));
6349 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
6351 /* Free the native relocations. */
6352 o->reloc_count = (unsigned) -1;
6353 FREE (som_section_data (o)->reloc_stream);
6354 /* Free the generic relocations. */
6355 FREE (o->relocation);
6362 /* End of miscellaneous support functions. */
6364 /* Linker support functions. */
6367 som_bfd_link_split_section (abfd, sec)
6368 bfd *abfd ATTRIBUTE_UNUSED;
6371 return (som_is_subspace (sec) && sec->size > 240000);
6374 #define som_close_and_cleanup som_bfd_free_cached_info
6376 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6377 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6378 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6379 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6380 #define som_truncate_arname bfd_bsd_truncate_arname
6381 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6382 #define som_construct_extended_name_table \
6383 _bfd_archive_coff_construct_extended_name_table
6384 #define som_update_armap_timestamp bfd_true
6385 #define som_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
6387 #define som_get_lineno _bfd_nosymbols_get_lineno
6388 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6389 #define som_read_minisymbols _bfd_generic_read_minisymbols
6390 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6391 #define som_get_section_contents_in_window \
6392 _bfd_generic_get_section_contents_in_window
6394 #define som_bfd_get_relocated_section_contents \
6395 bfd_generic_get_relocated_section_contents
6396 #define som_bfd_relax_section bfd_generic_relax_section
6397 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6398 #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6399 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6400 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6401 #define som_bfd_final_link _bfd_generic_final_link
6403 #define som_bfd_gc_sections bfd_generic_gc_sections
6404 #define som_bfd_merge_sections bfd_generic_merge_sections
6405 #define som_bfd_is_group_section bfd_generic_is_group_section
6406 #define som_bfd_discard_group bfd_generic_discard_group
6408 const bfd_target som_vec = {
6410 bfd_target_som_flavour,
6411 BFD_ENDIAN_BIG, /* target byte order */
6412 BFD_ENDIAN_BIG, /* target headers byte order */
6413 (HAS_RELOC | EXEC_P | /* object flags */
6414 HAS_LINENO | HAS_DEBUG |
6415 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6416 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
6417 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
6419 /* leading_symbol_char: is the first char of a user symbol
6420 predictable, and if so what is it. */
6422 '/', /* ar_pad_char */
6423 14, /* ar_max_namelen */
6424 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6425 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6426 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
6427 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6428 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6429 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
6431 som_object_p, /* bfd_check_format */
6432 bfd_generic_archive_p,
6438 _bfd_generic_mkarchive,
6443 som_write_object_contents,
6444 _bfd_write_archive_contents,
6449 BFD_JUMP_TABLE_GENERIC (som),
6450 BFD_JUMP_TABLE_COPY (som),
6451 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6452 BFD_JUMP_TABLE_ARCHIVE (som),
6453 BFD_JUMP_TABLE_SYMBOLS (som),
6454 BFD_JUMP_TABLE_RELOCS (som),
6455 BFD_JUMP_TABLE_WRITE (som),
6456 BFD_JUMP_TABLE_LINK (som),
6457 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6464 #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */