1 /* bfd back-end for HP PA-RISC SOM objects.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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;
151 /* Forward declarations */
153 static boolean som_mkobject PARAMS ((bfd *));
154 static const bfd_target * som_object_setup PARAMS ((bfd *,
156 struct som_exec_auxhdr *,
158 static boolean setup_sections PARAMS ((bfd *, struct header *, unsigned long));
159 static const bfd_target * som_object_p PARAMS ((bfd *));
160 static boolean som_write_object_contents PARAMS ((bfd *));
161 static boolean som_slurp_string_table PARAMS ((bfd *));
162 static unsigned int som_slurp_symbol_table PARAMS ((bfd *));
163 static long som_get_symtab_upper_bound PARAMS ((bfd *));
164 static long som_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
165 arelent **, asymbol **));
166 static long som_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
167 static unsigned int som_set_reloc_info PARAMS ((unsigned char *, unsigned int,
168 arelent *, asection *,
169 asymbol **, boolean));
170 static boolean som_slurp_reloc_table PARAMS ((bfd *, asection *,
171 asymbol **, boolean));
172 static long som_get_symtab PARAMS ((bfd *, asymbol **));
173 static asymbol * som_make_empty_symbol PARAMS ((bfd *));
174 static void som_print_symbol PARAMS ((bfd *, PTR,
175 asymbol *, bfd_print_symbol_type));
176 static boolean som_new_section_hook PARAMS ((bfd *, asection *));
177 static boolean som_bfd_copy_private_symbol_data PARAMS ((bfd *, asymbol *,
179 static boolean som_bfd_copy_private_section_data PARAMS ((bfd *, asection *,
181 static boolean som_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *));
182 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
183 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
184 static boolean som_bfd_is_local_label_name PARAMS ((bfd *, const char *));
185 static boolean som_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
186 file_ptr, bfd_size_type));
187 static boolean som_get_section_contents PARAMS ((bfd *, sec_ptr, PTR,
188 file_ptr, bfd_size_type));
189 static boolean som_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
191 static boolean som_find_nearest_line PARAMS ((bfd *, asection *,
196 static void som_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
197 static asection * bfd_section_from_som_symbol PARAMS ((bfd *,
198 struct symbol_dictionary_record *));
199 static int log2 PARAMS ((unsigned int));
200 static bfd_reloc_status_type hppa_som_reloc PARAMS ((bfd *, arelent *,
204 static void som_initialize_reloc_queue PARAMS ((struct reloc_queue *));
205 static void som_reloc_queue_insert PARAMS ((unsigned char *, unsigned int,
206 struct reloc_queue *));
207 static void som_reloc_queue_fix PARAMS ((struct reloc_queue *, unsigned int));
208 static int som_reloc_queue_find PARAMS ((unsigned char *, unsigned int,
209 struct reloc_queue *));
210 static unsigned char * try_prev_fixup PARAMS ((bfd *, int *, unsigned char *,
212 struct reloc_queue *));
214 static unsigned char * som_reloc_skip PARAMS ((bfd *, unsigned int,
215 unsigned char *, unsigned int *,
216 struct reloc_queue *));
217 static unsigned char * som_reloc_addend PARAMS ((bfd *, bfd_vma,
220 struct reloc_queue *));
221 static unsigned char * som_reloc_call PARAMS ((bfd *, unsigned char *,
224 struct reloc_queue *));
225 static unsigned long som_count_spaces PARAMS ((bfd *));
226 static unsigned long som_count_subspaces PARAMS ((bfd *));
227 static int compare_syms PARAMS ((const void *, const void *));
228 static int compare_subspaces PARAMS ((const void *, const void *));
229 static unsigned long som_compute_checksum PARAMS ((bfd *));
230 static boolean som_prep_headers PARAMS ((bfd *));
231 static int som_sizeof_headers PARAMS ((bfd *, boolean));
232 static boolean som_finish_writing PARAMS ((bfd *));
233 static boolean som_build_and_write_symbol_table PARAMS ((bfd *));
234 static void som_prep_for_fixups PARAMS ((bfd *, asymbol **, unsigned long));
235 static boolean som_write_fixups PARAMS ((bfd *, unsigned long, unsigned int *));
236 static boolean som_write_space_strings PARAMS ((bfd *, unsigned long,
238 static boolean som_write_symbol_strings PARAMS ((bfd *, unsigned long,
239 asymbol **, unsigned int,
242 static boolean som_begin_writing PARAMS ((bfd *));
243 static reloc_howto_type * som_bfd_reloc_type_lookup
244 PARAMS ((bfd *, bfd_reloc_code_real_type));
245 static char som_section_type PARAMS ((const char *));
246 static int som_decode_symclass PARAMS ((asymbol *));
247 static boolean som_bfd_count_ar_symbols PARAMS ((bfd *, struct lst_header *,
250 static boolean som_bfd_fill_in_ar_symbols PARAMS ((bfd *, struct lst_header *,
252 static boolean som_slurp_armap PARAMS ((bfd *));
253 static boolean som_write_armap PARAMS ((bfd *, unsigned int, struct orl *,
255 static void som_bfd_derive_misc_symbol_info PARAMS ((bfd *, asymbol *,
256 struct som_misc_symbol_info *));
257 static boolean som_bfd_prep_for_ar_write PARAMS ((bfd *, unsigned int *,
259 static unsigned int som_bfd_ar_symbol_hash PARAMS ((asymbol *));
260 static boolean som_bfd_ar_write_symbol_stuff PARAMS ((bfd *, unsigned int,
264 static boolean som_is_space PARAMS ((asection *));
265 static boolean som_is_subspace PARAMS ((asection *));
266 static boolean som_is_container PARAMS ((asection *, asection *));
267 static boolean som_bfd_free_cached_info PARAMS ((bfd *));
268 static boolean som_bfd_link_split_section PARAMS ((bfd *, asection *));
270 /* Map SOM section names to POSIX/BSD single-character symbol types.
272 This table includes all the standard subspaces as defined in the
273 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
274 some reason was left out, and sections specific to embedded stabs. */
276 static const struct section_to_type stt[] = {
278 {"$SHLIB_INFO$", 't'},
279 {"$MILLICODE$", 't'},
282 {"$UNWIND_START$", 't'},
286 {"$SHLIB_DATA$", 'd'},
288 {"$SHORTDATA$", 'g'},
293 {"$GDB_STRINGS$", 'N'},
294 {"$GDB_SYMBOLS$", 'N'},
298 /* About the relocation formatting table...
300 There are 256 entries in the table, one for each possible
301 relocation opcode available in SOM. We index the table by
302 the relocation opcode. The names and operations are those
303 defined by a.out_800 (4).
305 Right now this table is only used to count and perform minimal
306 processing on relocation streams so that they can be internalized
307 into BFD and symbolically printed by utilities. To make actual use
308 of them would be much more difficult, BFD's concept of relocations
309 is far too simple to handle SOM relocations. The basic assumption
310 that a relocation can be completely processed independent of other
311 relocations before an object file is written is invalid for SOM.
313 The SOM relocations are meant to be processed as a stream, they
314 specify copying of data from the input section to the output section
315 while possibly modifying the data in some manner. They also can
316 specify that a variable number of zeros or uninitialized data be
317 inserted on in the output segment at the current offset. Some
318 relocations specify that some previous relocation be re-applied at
319 the current location in the input/output sections. And finally a number
320 of relocations have effects on other sections (R_ENTRY, R_EXIT,
321 R_UNWIND_AUX and a variety of others). There isn't even enough room
322 in the BFD relocation data structure to store enough information to
323 perform all the relocations.
325 Each entry in the table has three fields.
327 The first entry is an index into this "class" of relocations. This
328 index can then be used as a variable within the relocation itself.
330 The second field is a format string which actually controls processing
331 of the relocation. It uses a simple postfix machine to do calculations
332 based on variables/constants found in the string and the relocation
335 The third field specifys whether or not this relocation may use
336 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
337 stored in the instruction.
341 L = input space byte count
342 D = index into class of relocations
343 M = output space byte count
344 N = statement number (unused?)
346 R = parameter relocation bits
348 T = first 32 bits of stack unwind information
349 U = second 32 bits of stack unwind information
350 V = a literal constant (usually used in the next relocation)
351 P = a previous relocation
353 Lower case letters (starting with 'b') refer to following
354 bytes in the relocation stream. 'b' is the next 1 byte,
355 c is the next 2 bytes, d is the next 3 bytes, etc...
356 This is the variable part of the relocation entries that
357 makes our life a living hell.
359 numerical constants are also used in the format string. Note
360 the constants are represented in decimal.
362 '+', "*" and "=" represents the obvious postfix operators.
363 '<' represents a left shift.
367 Parameter Relocation Bits:
371 Previous Relocations: The index field represents which in the queue
372 of 4 previous fixups should be re-applied.
374 Literal Constants: These are generally used to represent addend
375 parts of relocations when these constants are not stored in the
376 fields of the instructions themselves. For example the instruction
377 addil foo-$global$-0x1234 would use an override for "0x1234" rather
378 than storing it into the addil itself. */
380 struct fixup_format {
385 static const struct fixup_format som_fixup_formats[256] = {
386 /* R_NO_RELOCATION */
387 { 0, "LD1+4*=" }, /* 0x00 */
388 { 1, "LD1+4*=" }, /* 0x01 */
389 { 2, "LD1+4*=" }, /* 0x02 */
390 { 3, "LD1+4*=" }, /* 0x03 */
391 { 4, "LD1+4*=" }, /* 0x04 */
392 { 5, "LD1+4*=" }, /* 0x05 */
393 { 6, "LD1+4*=" }, /* 0x06 */
394 { 7, "LD1+4*=" }, /* 0x07 */
395 { 8, "LD1+4*=" }, /* 0x08 */
396 { 9, "LD1+4*=" }, /* 0x09 */
397 { 10, "LD1+4*=" }, /* 0x0a */
398 { 11, "LD1+4*=" }, /* 0x0b */
399 { 12, "LD1+4*=" }, /* 0x0c */
400 { 13, "LD1+4*=" }, /* 0x0d */
401 { 14, "LD1+4*=" }, /* 0x0e */
402 { 15, "LD1+4*=" }, /* 0x0f */
403 { 16, "LD1+4*=" }, /* 0x10 */
404 { 17, "LD1+4*=" }, /* 0x11 */
405 { 18, "LD1+4*=" }, /* 0x12 */
406 { 19, "LD1+4*=" }, /* 0x13 */
407 { 20, "LD1+4*=" }, /* 0x14 */
408 { 21, "LD1+4*=" }, /* 0x15 */
409 { 22, "LD1+4*=" }, /* 0x16 */
410 { 23, "LD1+4*=" }, /* 0x17 */
411 { 0, "LD8<b+1+4*=" }, /* 0x18 */
412 { 1, "LD8<b+1+4*=" }, /* 0x19 */
413 { 2, "LD8<b+1+4*=" }, /* 0x1a */
414 { 3, "LD8<b+1+4*=" }, /* 0x1b */
415 { 0, "LD16<c+1+4*=" }, /* 0x1c */
416 { 1, "LD16<c+1+4*=" }, /* 0x1d */
417 { 2, "LD16<c+1+4*=" }, /* 0x1e */
418 { 0, "Ld1+=" }, /* 0x1f */
420 { 0, "Lb1+4*=" }, /* 0x20 */
421 { 1, "Ld1+=" }, /* 0x21 */
423 { 0, "Lb1+4*=" }, /* 0x22 */
424 { 1, "Ld1+=" }, /* 0x23 */
426 { 0, "L4=" }, /* 0x24 */
427 /* R_DATA_ONE_SYMBOL */
428 { 0, "L4=Sb=" }, /* 0x25 */
429 { 1, "L4=Sd=" }, /* 0x26 */
431 { 0, "L4=Sb=" }, /* 0x27 */
432 { 1, "L4=Sd=" }, /* 0x28 */
434 { 0, "L4=" }, /* 0x29 */
435 /* R_REPEATED_INIT */
436 { 0, "L4=Mb1+4*=" }, /* 0x2a */
437 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
438 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
439 { 3, "Ld1+=Me1+=" }, /* 0x2d */
440 { 0, "" }, /* 0x2e */
441 { 0, "" }, /* 0x2f */
443 { 0, "L4=RD=Sb=" }, /* 0x30 */
444 { 1, "L4=RD=Sb=" }, /* 0x31 */
445 { 2, "L4=RD=Sb=" }, /* 0x32 */
446 { 3, "L4=RD=Sb=" }, /* 0x33 */
447 { 4, "L4=RD=Sb=" }, /* 0x34 */
448 { 5, "L4=RD=Sb=" }, /* 0x35 */
449 { 6, "L4=RD=Sb=" }, /* 0x36 */
450 { 7, "L4=RD=Sb=" }, /* 0x37 */
451 { 8, "L4=RD=Sb=" }, /* 0x38 */
452 { 9, "L4=RD=Sb=" }, /* 0x39 */
453 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
454 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
455 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
456 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
457 /* R_SHORT_PCREL_MODE */
458 { 0, "" }, /* 0x3e */
459 /* R_LONG_PCREL_MODE */
460 { 0, "" }, /* 0x3f */
462 { 0, "L4=RD=Sb=" }, /* 0x40 */
463 { 1, "L4=RD=Sb=" }, /* 0x41 */
464 { 2, "L4=RD=Sb=" }, /* 0x42 */
465 { 3, "L4=RD=Sb=" }, /* 0x43 */
466 { 4, "L4=RD=Sb=" }, /* 0x44 */
467 { 5, "L4=RD=Sb=" }, /* 0x45 */
468 { 6, "L4=RD=Sb=" }, /* 0x46 */
469 { 7, "L4=RD=Sb=" }, /* 0x47 */
470 { 8, "L4=RD=Sb=" }, /* 0x48 */
471 { 9, "L4=RD=Sb=" }, /* 0x49 */
472 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
473 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
474 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
475 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
477 { 0, "" }, /* 0x4e */
478 { 0, "" }, /* 0x4f */
480 { 0, "L4=SD=" }, /* 0x50 */
481 { 1, "L4=SD=" }, /* 0x51 */
482 { 2, "L4=SD=" }, /* 0x52 */
483 { 3, "L4=SD=" }, /* 0x53 */
484 { 4, "L4=SD=" }, /* 0x54 */
485 { 5, "L4=SD=" }, /* 0x55 */
486 { 6, "L4=SD=" }, /* 0x56 */
487 { 7, "L4=SD=" }, /* 0x57 */
488 { 8, "L4=SD=" }, /* 0x58 */
489 { 9, "L4=SD=" }, /* 0x59 */
490 { 10, "L4=SD=" }, /* 0x5a */
491 { 11, "L4=SD=" }, /* 0x5b */
492 { 12, "L4=SD=" }, /* 0x5c */
493 { 13, "L4=SD=" }, /* 0x5d */
494 { 14, "L4=SD=" }, /* 0x5e */
495 { 15, "L4=SD=" }, /* 0x5f */
496 { 16, "L4=SD=" }, /* 0x60 */
497 { 17, "L4=SD=" }, /* 0x61 */
498 { 18, "L4=SD=" }, /* 0x62 */
499 { 19, "L4=SD=" }, /* 0x63 */
500 { 20, "L4=SD=" }, /* 0x64 */
501 { 21, "L4=SD=" }, /* 0x65 */
502 { 22, "L4=SD=" }, /* 0x66 */
503 { 23, "L4=SD=" }, /* 0x67 */
504 { 24, "L4=SD=" }, /* 0x68 */
505 { 25, "L4=SD=" }, /* 0x69 */
506 { 26, "L4=SD=" }, /* 0x6a */
507 { 27, "L4=SD=" }, /* 0x6b */
508 { 28, "L4=SD=" }, /* 0x6c */
509 { 29, "L4=SD=" }, /* 0x6d */
510 { 30, "L4=SD=" }, /* 0x6e */
511 { 31, "L4=SD=" }, /* 0x6f */
512 { 32, "L4=Sb=" }, /* 0x70 */
513 { 33, "L4=Sd=" }, /* 0x71 */
515 { 0, "" }, /* 0x72 */
516 { 0, "" }, /* 0x73 */
517 { 0, "" }, /* 0x74 */
518 { 0, "" }, /* 0x75 */
519 { 0, "" }, /* 0x76 */
520 { 0, "" }, /* 0x77 */
522 { 0, "L4=Sb=" }, /* 0x78 */
523 { 1, "L4=Sd=" }, /* 0x79 */
525 { 0, "" }, /* 0x7a */
526 { 0, "" }, /* 0x7b */
527 { 0, "" }, /* 0x7c */
528 { 0, "" }, /* 0x7d */
529 { 0, "" }, /* 0x7e */
530 { 0, "" }, /* 0x7f */
531 /* R_CODE_ONE_SYMBOL */
532 { 0, "L4=SD=" }, /* 0x80 */
533 { 1, "L4=SD=" }, /* 0x81 */
534 { 2, "L4=SD=" }, /* 0x82 */
535 { 3, "L4=SD=" }, /* 0x83 */
536 { 4, "L4=SD=" }, /* 0x84 */
537 { 5, "L4=SD=" }, /* 0x85 */
538 { 6, "L4=SD=" }, /* 0x86 */
539 { 7, "L4=SD=" }, /* 0x87 */
540 { 8, "L4=SD=" }, /* 0x88 */
541 { 9, "L4=SD=" }, /* 0x89 */
542 { 10, "L4=SD=" }, /* 0x8q */
543 { 11, "L4=SD=" }, /* 0x8b */
544 { 12, "L4=SD=" }, /* 0x8c */
545 { 13, "L4=SD=" }, /* 0x8d */
546 { 14, "L4=SD=" }, /* 0x8e */
547 { 15, "L4=SD=" }, /* 0x8f */
548 { 16, "L4=SD=" }, /* 0x90 */
549 { 17, "L4=SD=" }, /* 0x91 */
550 { 18, "L4=SD=" }, /* 0x92 */
551 { 19, "L4=SD=" }, /* 0x93 */
552 { 20, "L4=SD=" }, /* 0x94 */
553 { 21, "L4=SD=" }, /* 0x95 */
554 { 22, "L4=SD=" }, /* 0x96 */
555 { 23, "L4=SD=" }, /* 0x97 */
556 { 24, "L4=SD=" }, /* 0x98 */
557 { 25, "L4=SD=" }, /* 0x99 */
558 { 26, "L4=SD=" }, /* 0x9a */
559 { 27, "L4=SD=" }, /* 0x9b */
560 { 28, "L4=SD=" }, /* 0x9c */
561 { 29, "L4=SD=" }, /* 0x9d */
562 { 30, "L4=SD=" }, /* 0x9e */
563 { 31, "L4=SD=" }, /* 0x9f */
564 { 32, "L4=Sb=" }, /* 0xa0 */
565 { 33, "L4=Sd=" }, /* 0xa1 */
567 { 0, "" }, /* 0xa2 */
568 { 0, "" }, /* 0xa3 */
569 { 0, "" }, /* 0xa4 */
570 { 0, "" }, /* 0xa5 */
571 { 0, "" }, /* 0xa6 */
572 { 0, "" }, /* 0xa7 */
573 { 0, "" }, /* 0xa8 */
574 { 0, "" }, /* 0xa9 */
575 { 0, "" }, /* 0xaa */
576 { 0, "" }, /* 0xab */
577 { 0, "" }, /* 0xac */
578 { 0, "" }, /* 0xad */
580 { 0, "L4=Sb=" }, /* 0xae */
581 { 1, "L4=Sd=" }, /* 0xaf */
583 { 0, "L4=Sb=" }, /* 0xb0 */
584 { 1, "L4=Sd=" }, /* 0xb1 */
586 { 0, "L4=" }, /* 0xb2 */
588 { 0, "Te=Ue=" }, /* 0xb3 */
589 { 1, "Uf=" }, /* 0xb4 */
591 { 0, "" }, /* 0xb5 */
593 { 0, "" }, /* 0xb6 */
595 { 0, "" }, /* 0xb7 */
597 { 0, "R0=" }, /* 0xb8 */
598 { 1, "Rb4*=" }, /* 0xb9 */
599 { 2, "Rd4*=" }, /* 0xba */
601 { 0, "" }, /* 0xbb */
603 { 0, "" }, /* 0xbc */
605 { 0, "Nb=" }, /* 0xbd */
606 { 1, "Nc=" }, /* 0xbe */
607 { 2, "Nd=" }, /* 0xbf */
609 { 0, "L4=" }, /* 0xc0 */
611 { 0, "L4=" }, /* 0xc1 */
613 { 0, "" }, /* 0xc2 */
615 { 0, "" }, /* 0xc3 */
617 { 0, "" }, /* 0xc4 */
619 { 0, "" }, /* 0xc5 */
621 { 0, "" }, /* 0xc6 */
623 { 0, "" }, /* 0xc7 */
625 { 0, "" }, /* 0xc8 */
626 /* R_DATA_OVERRIDE */
627 { 0, "V0=" }, /* 0xc9 */
628 { 1, "Vb=" }, /* 0xca */
629 { 2, "Vc=" }, /* 0xcb */
630 { 3, "Vd=" }, /* 0xcc */
631 { 4, "Ve=" }, /* 0xcd */
633 { 0, "" }, /* 0xce */
635 { 0,"Sd=Vf=Ef=" }, /* 0xcf */
637 { 0, "Ob=" }, /* 0xd0 */
639 { 0, "Ob=Sd=" }, /* 0xd1 */
641 { 0, "Ob=Ve=" }, /* 0xd2 */
643 { 0, "P" }, /* 0xd3 */
644 { 1, "P" }, /* 0xd4 */
645 { 2, "P" }, /* 0xd5 */
646 { 3, "P" }, /* 0xd6 */
648 { 0, "" }, /* 0xd7 */
650 { 0, "" }, /* 0xd8 */
652 { 0, "" }, /* 0xd9 */
654 { 0, "Eb=Sd=Ve=" }, /* 0xda */
656 { 0, "Eb=Mb=" }, /* 0xdb */
658 { 0, "" }, /* 0xdc */
660 { 0, "Ob=Ve=" }, /* 0xdd */
662 { 0, "" }, /* 0xde */
663 { 0, "" }, /* 0xdf */
664 { 0, "" }, /* 0xe0 */
665 { 0, "" }, /* 0xe1 */
666 { 0, "" }, /* 0xe2 */
667 { 0, "" }, /* 0xe3 */
668 { 0, "" }, /* 0xe4 */
669 { 0, "" }, /* 0xe5 */
670 { 0, "" }, /* 0xe6 */
671 { 0, "" }, /* 0xe7 */
672 { 0, "" }, /* 0xe8 */
673 { 0, "" }, /* 0xe9 */
674 { 0, "" }, /* 0xea */
675 { 0, "" }, /* 0xeb */
676 { 0, "" }, /* 0xec */
677 { 0, "" }, /* 0xed */
678 { 0, "" }, /* 0xee */
679 { 0, "" }, /* 0xef */
680 { 0, "" }, /* 0xf0 */
681 { 0, "" }, /* 0xf1 */
682 { 0, "" }, /* 0xf2 */
683 { 0, "" }, /* 0xf3 */
684 { 0, "" }, /* 0xf4 */
685 { 0, "" }, /* 0xf5 */
686 { 0, "" }, /* 0xf6 */
687 { 0, "" }, /* 0xf7 */
688 { 0, "" }, /* 0xf8 */
689 { 0, "" }, /* 0xf9 */
690 { 0, "" }, /* 0xfa */
691 { 0, "" }, /* 0xfb */
692 { 0, "" }, /* 0xfc */
693 { 0, "" }, /* 0xfd */
694 { 0, "" }, /* 0xfe */
695 { 0, "" }, /* 0xff */
698 static const int comp1_opcodes[] = {
719 static const int comp2_opcodes[] = {
727 static const int comp3_opcodes[] = {
733 /* These apparently are not in older versions of hpux reloc.h (hpux7). */
735 #define R_DLT_REL 0x78
739 #define R_AUX_UNWIND 0xcf
743 #define R_SEC_STMT 0xd7
746 /* And these first appeared in hpux10. */
747 #ifndef R_SHORT_PCREL_MODE
748 #define NO_PCREL_MODES
749 #define R_SHORT_PCREL_MODE 0x3e
752 #ifndef R_LONG_PCREL_MODE
753 #define R_LONG_PCREL_MODE 0x3f
765 #define R_LINETAB 0xda
768 #ifndef R_LINETAB_ESC
769 #define R_LINETAB_ESC 0xdb
772 #ifndef R_LTP_OVERRIDE
773 #define R_LTP_OVERRIDE 0xdc
777 #define R_COMMENT 0xdd
780 #define SOM_HOWTO(TYPE, NAME) \
781 HOWTO(TYPE, 0, 0, 32, false, 0, 0, hppa_som_reloc, NAME, false, 0, 0, false)
783 static reloc_howto_type som_hppa_howto_table[] = {
784 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
785 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
786 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
787 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
788 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
789 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
790 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
791 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
792 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
793 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
794 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
795 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
796 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
797 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
798 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
799 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
800 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
801 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
802 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
803 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
804 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
805 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
806 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
807 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
808 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
809 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
810 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
811 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
812 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
813 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
814 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
815 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
816 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
817 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
818 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
819 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
820 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
821 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
822 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
823 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
824 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
825 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
826 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
827 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
828 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
829 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
830 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
831 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
832 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
833 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
834 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
835 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
836 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
837 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
838 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
839 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
840 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
841 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
842 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
843 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
844 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
845 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
846 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
847 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
848 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
849 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
850 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
851 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
852 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
853 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
854 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
855 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
856 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
857 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
858 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
859 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
860 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
861 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
862 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
863 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
864 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
865 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
866 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
867 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
868 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
869 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
870 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
871 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
872 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
873 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
874 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
875 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
876 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
877 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
878 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
879 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
880 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
881 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
882 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
883 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
884 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
885 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
886 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
887 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
888 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
889 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
890 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
891 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
892 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
893 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
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_RESERVED, "R_RESERVED"),
900 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
901 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
902 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
903 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
904 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
905 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
906 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
907 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
908 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
909 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
910 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
911 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
912 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
913 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
914 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
915 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
916 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
917 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
918 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
919 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
920 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
921 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
922 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
923 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
924 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
925 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
926 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
927 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
928 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
929 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
930 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
931 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
932 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
933 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
934 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
935 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
936 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
937 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
938 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
939 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
940 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
941 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
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_RESERVED, "R_RESERVED"),
948 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
949 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
950 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
951 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
952 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
953 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
954 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
955 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
956 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
957 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
958 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
959 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
960 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
961 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
962 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
963 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
964 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
965 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
966 SOM_HOWTO (R_EXIT, "R_EXIT"),
967 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
968 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
969 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
970 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
971 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
972 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
973 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
974 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
975 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
976 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
977 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
978 SOM_HOWTO (R_FSEL, "R_FSEL"),
979 SOM_HOWTO (R_LSEL, "R_LSEL"),
980 SOM_HOWTO (R_RSEL, "R_RSEL"),
981 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
982 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
983 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
984 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
985 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
986 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
987 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
988 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
989 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
990 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
991 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
992 SOM_HOWTO (R_COMP1, "R_COMP1"),
993 SOM_HOWTO (R_COMP2, "R_COMP2"),
994 SOM_HOWTO (R_COMP3, "R_COMP3"),
995 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
996 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
997 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
998 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
999 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
1000 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
1001 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
1002 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
1003 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
1004 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
1005 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
1006 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1007 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1008 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1009 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1010 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1011 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1012 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1013 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1014 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1015 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1016 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1017 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1018 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1019 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1020 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1021 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1022 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1023 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1024 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1025 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1026 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1027 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1028 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1029 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1030 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1031 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1032 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1033 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1034 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
1035 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
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")
1042 /* Initialize the SOM relocation queue. By definition the queue holds
1043 the last four multibyte fixups. */
1046 som_initialize_reloc_queue (queue)
1047 struct reloc_queue *queue;
1049 queue[0].reloc = NULL;
1051 queue[1].reloc = NULL;
1053 queue[2].reloc = NULL;
1055 queue[3].reloc = NULL;
1059 /* Insert a new relocation into the relocation queue. */
1062 som_reloc_queue_insert (p, size, queue)
1065 struct reloc_queue *queue;
1067 queue[3].reloc = queue[2].reloc;
1068 queue[3].size = queue[2].size;
1069 queue[2].reloc = queue[1].reloc;
1070 queue[2].size = queue[1].size;
1071 queue[1].reloc = queue[0].reloc;
1072 queue[1].size = queue[0].size;
1074 queue[0].size = size;
1077 /* When an entry in the relocation queue is reused, the entry moves
1078 to the front of the queue. */
1081 som_reloc_queue_fix (queue, index)
1082 struct reloc_queue *queue;
1090 unsigned char *tmp1 = queue[0].reloc;
1091 unsigned int tmp2 = queue[0].size;
1092 queue[0].reloc = queue[1].reloc;
1093 queue[0].size = queue[1].size;
1094 queue[1].reloc = tmp1;
1095 queue[1].size = tmp2;
1101 unsigned char *tmp1 = queue[0].reloc;
1102 unsigned int tmp2 = queue[0].size;
1103 queue[0].reloc = queue[2].reloc;
1104 queue[0].size = queue[2].size;
1105 queue[2].reloc = queue[1].reloc;
1106 queue[2].size = queue[1].size;
1107 queue[1].reloc = tmp1;
1108 queue[1].size = tmp2;
1114 unsigned char *tmp1 = queue[0].reloc;
1115 unsigned int tmp2 = queue[0].size;
1116 queue[0].reloc = queue[3].reloc;
1117 queue[0].size = queue[3].size;
1118 queue[3].reloc = queue[2].reloc;
1119 queue[3].size = queue[2].size;
1120 queue[2].reloc = queue[1].reloc;
1121 queue[2].size = queue[1].size;
1122 queue[1].reloc = tmp1;
1123 queue[1].size = tmp2;
1129 /* Search for a particular relocation in the relocation queue. */
1132 som_reloc_queue_find (p, size, queue)
1135 struct reloc_queue *queue;
1137 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
1138 && size == queue[0].size)
1140 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
1141 && size == queue[1].size)
1143 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1144 && size == queue[2].size)
1146 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1147 && size == queue[3].size)
1152 static unsigned char *
1153 try_prev_fixup (abfd, subspace_reloc_sizep, p, size, queue)
1154 bfd *abfd ATTRIBUTE_UNUSED;
1155 int *subspace_reloc_sizep;
1158 struct reloc_queue *queue;
1160 int queue_index = som_reloc_queue_find (p, size, queue);
1162 if (queue_index != -1)
1164 /* Found this in a previous fixup. Undo the fixup we
1165 just built and use R_PREV_FIXUP instead. We saved
1166 a total of size - 1 bytes in the fixup stream. */
1167 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1169 *subspace_reloc_sizep += 1;
1170 som_reloc_queue_fix (queue, queue_index);
1174 som_reloc_queue_insert (p, size, queue);
1175 *subspace_reloc_sizep += size;
1181 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1182 bytes without any relocation. Update the size of the subspace
1183 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
1184 current pointer into the relocation stream. */
1186 static unsigned char *
1187 som_reloc_skip (abfd, skip, p, subspace_reloc_sizep, queue)
1191 unsigned int *subspace_reloc_sizep;
1192 struct reloc_queue *queue;
1194 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1195 then R_PREV_FIXUPs to get the difference down to a
1197 if (skip >= 0x1000000)
1200 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1201 bfd_put_8 (abfd, 0xff, p + 1);
1202 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
1203 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1204 while (skip >= 0x1000000)
1207 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1209 *subspace_reloc_sizep += 1;
1210 /* No need to adjust queue here since we are repeating the
1211 most recent fixup. */
1215 /* The difference must be less than 0x1000000. Use one
1216 more R_NO_RELOCATION entry to get to the right difference. */
1217 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1219 /* Difference can be handled in a simple single-byte
1220 R_NO_RELOCATION entry. */
1223 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1224 *subspace_reloc_sizep += 1;
1227 /* Handle it with a two byte R_NO_RELOCATION entry. */
1228 else if (skip <= 0x1000)
1230 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1231 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1232 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1234 /* Handle it with a three byte R_NO_RELOCATION entry. */
1237 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
1238 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
1239 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1242 /* Ugh. Punt and use a 4 byte entry. */
1245 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1246 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
1247 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
1248 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1253 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1254 from a BFD relocation. Update the size of the subspace relocation
1255 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1256 into the relocation stream. */
1258 static unsigned char *
1259 som_reloc_addend (abfd, addend, p, subspace_reloc_sizep, queue)
1263 unsigned int *subspace_reloc_sizep;
1264 struct reloc_queue *queue;
1266 if (addend + 0x80 < 0x100)
1268 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1269 bfd_put_8 (abfd, addend, p + 1);
1270 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1272 else if (addend + 0x8000 < 0x10000)
1274 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1275 bfd_put_16 (abfd, addend, p + 1);
1276 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1278 else if (addend + 0x800000 < 0x1000000)
1280 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1281 bfd_put_8 (abfd, addend >> 16, p + 1);
1282 bfd_put_16 (abfd, addend, p + 2);
1283 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1287 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1288 bfd_put_32 (abfd, addend, p + 1);
1289 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1294 /* Handle a single function call relocation. */
1296 static unsigned char *
1297 som_reloc_call (abfd, p, subspace_reloc_sizep, bfd_reloc, sym_num, queue)
1300 unsigned int *subspace_reloc_sizep;
1303 struct reloc_queue *queue;
1305 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1306 int rtn_bits = arg_bits & 0x3;
1309 /* You'll never believe all this is necessary to handle relocations
1310 for function calls. Having to compute and pack the argument
1311 relocation bits is the real nightmare.
1313 If you're interested in how this works, just forget it. You really
1314 do not want to know about this braindamage. */
1316 /* First see if this can be done with a "simple" relocation. Simple
1317 relocations have a symbol number < 0x100 and have simple encodings
1318 of argument relocations. */
1320 if (sym_num < 0x100)
1332 case 1 << 8 | 1 << 6:
1333 case 1 << 8 | 1 << 6 | 1:
1336 case 1 << 8 | 1 << 6 | 1 << 4:
1337 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1340 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1341 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1345 /* Not one of the easy encodings. This will have to be
1346 handled by the more complex code below. */
1352 /* Account for the return value too. */
1356 /* Emit a 2 byte relocation. Then see if it can be handled
1357 with a relocation which is already in the relocation queue. */
1358 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1359 bfd_put_8 (abfd, sym_num, p + 1);
1360 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1365 /* If this could not be handled with a simple relocation, then do a hard
1366 one. Hard relocations occur if the symbol number was too high or if
1367 the encoding of argument relocation bits is too complex. */
1370 /* Don't ask about these magic sequences. I took them straight
1371 from gas-1.36 which took them from the a.out man page. */
1373 if ((arg_bits >> 6 & 0xf) == 0xe)
1376 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1377 if ((arg_bits >> 2 & 0xf) == 0xe)
1380 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
1382 /* Output the first two bytes of the relocation. These describe
1383 the length of the relocation and encoding style. */
1384 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1385 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1387 bfd_put_8 (abfd, type, p + 1);
1389 /* Now output the symbol index and see if this bizarre relocation
1390 just happened to be in the relocation queue. */
1391 if (sym_num < 0x100)
1393 bfd_put_8 (abfd, sym_num, p + 2);
1394 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1398 bfd_put_8 (abfd, sym_num >> 16, p + 2);
1399 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
1400 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1406 /* Return the logarithm of X, base 2, considering X unsigned.
1407 Abort -1 if X is not a power or two or is zero. */
1415 /* Test for 0 or a power of 2. */
1416 if (x == 0 || x != (x & -x))
1419 while ((x >>= 1) != 0)
1424 static bfd_reloc_status_type
1425 hppa_som_reloc (abfd, reloc_entry, symbol_in, data,
1426 input_section, output_bfd, error_message)
1427 bfd *abfd ATTRIBUTE_UNUSED;
1428 arelent *reloc_entry;
1429 asymbol *symbol_in ATTRIBUTE_UNUSED;
1430 PTR data ATTRIBUTE_UNUSED;
1431 asection *input_section;
1433 char **error_message ATTRIBUTE_UNUSED;
1437 reloc_entry->address += input_section->output_offset;
1438 return bfd_reloc_ok;
1440 return bfd_reloc_ok;
1443 /* Given a generic HPPA relocation type, the instruction format,
1444 and a field selector, return one or more appropriate SOM relocations. */
1447 hppa_som_gen_reloc_type (abfd, base_type, format, field, sym_diff, sym)
1451 enum hppa_reloc_field_selector_type_alt field;
1455 int *final_type, **final_types;
1457 final_types = (int **) bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1458 final_type = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1459 if (!final_types || !final_type)
1462 /* The field selector may require additional relocations to be
1463 generated. It's impossible to know at this moment if additional
1464 relocations will be needed, so we make them. The code to actually
1465 write the relocation/fixup stream is responsible for removing
1466 any redundant relocations. */
1473 final_types[0] = final_type;
1474 final_types[1] = NULL;
1475 final_types[2] = NULL;
1476 *final_type = base_type;
1482 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1483 if (!final_types[0])
1485 if (field == e_tsel)
1486 *final_types[0] = R_FSEL;
1487 else if (field == e_ltsel)
1488 *final_types[0] = R_LSEL;
1490 *final_types[0] = R_RSEL;
1491 final_types[1] = final_type;
1492 final_types[2] = NULL;
1493 *final_type = base_type;
1498 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1499 if (!final_types[0])
1501 *final_types[0] = R_S_MODE;
1502 final_types[1] = final_type;
1503 final_types[2] = NULL;
1504 *final_type = base_type;
1509 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1510 if (!final_types[0])
1512 *final_types[0] = R_N_MODE;
1513 final_types[1] = final_type;
1514 final_types[2] = NULL;
1515 *final_type = base_type;
1520 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1521 if (!final_types[0])
1523 *final_types[0] = R_D_MODE;
1524 final_types[1] = final_type;
1525 final_types[2] = NULL;
1526 *final_type = base_type;
1531 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1532 if (!final_types[0])
1534 *final_types[0] = R_R_MODE;
1535 final_types[1] = final_type;
1536 final_types[2] = NULL;
1537 *final_type = base_type;
1541 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1542 if (!final_types[0])
1544 *final_types[0] = R_N1SEL;
1545 final_types[1] = final_type;
1546 final_types[2] = NULL;
1547 *final_type = base_type;
1552 final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1553 if (!final_types[0])
1555 *final_types[0] = R_N0SEL;
1556 final_types[1] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1557 if (!final_types[1])
1559 if (field == e_nlsel)
1560 *final_types[1] = R_N_MODE;
1562 *final_types[1] = R_R_MODE;
1563 final_types[2] = final_type;
1564 final_types[3] = NULL;
1565 *final_type = base_type;
1572 /* The difference of two symbols needs *very* special handling. */
1575 bfd_size_type amt = sizeof (int);
1576 final_types[0] = (int *) bfd_alloc (abfd, amt);
1577 final_types[1] = (int *) bfd_alloc (abfd, amt);
1578 final_types[2] = (int *) bfd_alloc (abfd, amt);
1579 final_types[3] = (int *) bfd_alloc (abfd, amt);
1580 if (!final_types[0] || !final_types[1] || !final_types[2])
1582 if (field == e_fsel)
1583 *final_types[0] = R_FSEL;
1584 else if (field == e_rsel)
1585 *final_types[0] = R_RSEL;
1586 else if (field == e_lsel)
1587 *final_types[0] = R_LSEL;
1588 *final_types[1] = R_COMP2;
1589 *final_types[2] = R_COMP2;
1590 *final_types[3] = R_COMP1;
1591 final_types[4] = final_type;
1593 *final_types[4] = R_DATA_EXPR;
1595 *final_types[4] = R_CODE_EXPR;
1596 final_types[5] = NULL;
1599 /* PLABELs get their own relocation type. */
1600 else if (field == e_psel
1602 || field == e_rpsel)
1604 /* A PLABEL relocation that has a size of 32 bits must
1605 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1607 *final_type = R_DATA_PLABEL;
1609 *final_type = R_CODE_PLABEL;
1612 else if (field == e_tsel
1614 || field == e_rtsel)
1615 *final_type = R_DLT_REL;
1616 /* A relocation in the data space is always a full 32bits. */
1617 else if (format == 32)
1619 *final_type = R_DATA_ONE_SYMBOL;
1621 /* If there's no SOM symbol type associated with this BFD
1622 symbol, then set the symbol type to ST_DATA.
1624 Only do this if the type is going to default later when
1625 we write the object file.
1627 This is done so that the linker never encounters an
1628 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1630 This allows the compiler to generate exception handling
1633 Note that one day we may need to also emit BEGIN_BRTAB and
1634 END_BRTAB to prevent the linker from optimizing away insns
1635 in exception handling regions. */
1636 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1637 && (sym->flags & BSF_SECTION_SYM) == 0
1638 && (sym->flags & BSF_FUNCTION) == 0
1639 && ! bfd_is_com_section (sym->section))
1640 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1645 /* More PLABEL special cases. */
1648 || field == e_rpsel)
1649 *final_type = R_DATA_PLABEL;
1652 case R_HPPA_COMPLEX:
1653 /* The difference of two symbols needs *very* special handling. */
1656 bfd_size_type amt = sizeof (int);
1657 final_types[0] = (int *) bfd_alloc (abfd, amt);
1658 final_types[1] = (int *) bfd_alloc (abfd, amt);
1659 final_types[2] = (int *) bfd_alloc (abfd, amt);
1660 final_types[3] = (int *) bfd_alloc (abfd, amt);
1661 if (!final_types[0] || !final_types[1] || !final_types[2])
1663 if (field == e_fsel)
1664 *final_types[0] = R_FSEL;
1665 else if (field == e_rsel)
1666 *final_types[0] = R_RSEL;
1667 else if (field == e_lsel)
1668 *final_types[0] = R_LSEL;
1669 *final_types[1] = R_COMP2;
1670 *final_types[2] = R_COMP2;
1671 *final_types[3] = R_COMP1;
1672 final_types[4] = final_type;
1674 *final_types[4] = R_DATA_EXPR;
1676 *final_types[4] = R_CODE_EXPR;
1677 final_types[5] = NULL;
1684 case R_HPPA_ABS_CALL:
1685 /* Right now we can default all these. */
1688 case R_HPPA_PCREL_CALL:
1690 #ifndef NO_PCREL_MODES
1691 /* If we have short and long pcrel modes, then generate the proper
1692 mode selector, then the pcrel relocation. Redundant selectors
1693 will be eliminted as the relocs are sized and emitted. */
1694 bfd_size_type amt = sizeof (int);
1695 final_types[0] = (int *) bfd_alloc (abfd, amt);
1696 if (!final_types[0])
1699 *final_types[0] = R_SHORT_PCREL_MODE;
1701 *final_types[0] = R_LONG_PCREL_MODE;
1702 final_types[1] = final_type;
1703 final_types[2] = NULL;
1704 *final_type = base_type;
1712 /* Return the address of the correct entry in the PA SOM relocation
1715 static reloc_howto_type *
1716 som_bfd_reloc_type_lookup (abfd, code)
1717 bfd *abfd ATTRIBUTE_UNUSED;
1718 bfd_reloc_code_real_type code;
1720 if ((int) code < (int) R_NO_RELOCATION + 255)
1722 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1723 return &som_hppa_howto_table[(int) code];
1726 return (reloc_howto_type *) 0;
1729 /* Perform some initialization for an object. Save results of this
1730 initialization in the BFD. */
1732 static const bfd_target *
1733 som_object_setup (abfd, file_hdrp, aux_hdrp, current_offset)
1735 struct header *file_hdrp;
1736 struct som_exec_auxhdr *aux_hdrp;
1737 unsigned long current_offset;
1742 /* som_mkobject will set bfd_error if som_mkobject fails. */
1743 if (som_mkobject (abfd) != true)
1746 /* Set BFD flags based on what information is available in the SOM. */
1747 abfd->flags = BFD_NO_FLAGS;
1748 if (file_hdrp->symbol_total)
1749 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1751 switch (file_hdrp->a_magic)
1754 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1757 abfd->flags |= (WP_TEXT | EXEC_P);
1760 abfd->flags |= (EXEC_P);
1763 abfd->flags |= HAS_RELOC;
1771 abfd->flags |= DYNAMIC;
1778 /* Allocate space to hold the saved exec header information. */
1779 obj_som_exec_data (abfd) = (struct som_exec_data *)
1780 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
1781 if (obj_som_exec_data (abfd) == NULL)
1784 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
1786 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
1787 apparently the latest HPUX linker is using NEW_VERSION_ID now.
1789 It's about time, OSF has used the new id since at least 1992;
1790 HPUX didn't start till nearly 1995!.
1792 The new approach examines the entry field. If it's zero or not 4
1793 byte aligned then it's not a proper code address and we guess it's
1794 really the executable flags. */
1796 for (section = abfd->sections; section; section = section->next)
1798 if ((section->flags & SEC_CODE) == 0)
1800 if (aux_hdrp->exec_entry >= section->vma
1801 && aux_hdrp->exec_entry < section->vma + section->_cooked_size)
1804 if (aux_hdrp->exec_entry == 0
1805 || (aux_hdrp->exec_entry & 0x3) != 0
1808 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
1809 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
1813 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
1814 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
1817 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
1819 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
1820 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
1822 /* Initialize the saved symbol table and string table to NULL.
1823 Save important offsets and sizes from the SOM header into
1825 obj_som_stringtab (abfd) = (char *) NULL;
1826 obj_som_symtab (abfd) = (som_symbol_type *) NULL;
1827 obj_som_sorted_syms (abfd) = NULL;
1828 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
1829 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
1830 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
1832 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
1834 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
1839 /* Convert all of the space and subspace info into BFD sections. Each space
1840 contains a number of subspaces, which in turn describe the mapping between
1841 regions of the exec file, and the address space that the program runs in.
1842 BFD sections which correspond to spaces will overlap the sections for the
1843 associated subspaces. */
1846 setup_sections (abfd, file_hdr, current_offset)
1848 struct header *file_hdr;
1849 unsigned long current_offset;
1851 char *space_strings;
1852 unsigned int space_index, i;
1853 unsigned int total_subspaces = 0;
1854 asection **subspace_sections, *section;
1857 /* First, read in space names. */
1859 amt = file_hdr->space_strings_size;
1860 space_strings = bfd_malloc (amt);
1861 if (!space_strings && amt != 0)
1864 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
1867 if (bfd_bread (space_strings, amt, abfd) != amt)
1870 /* Loop over all of the space dictionaries, building up sections. */
1871 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
1873 struct space_dictionary_record space;
1874 struct subspace_dictionary_record subspace, save_subspace;
1876 asection *space_asect;
1879 /* Read the space dictionary element. */
1881 (current_offset + file_hdr->space_location
1882 + space_index * sizeof space),
1886 if (bfd_bread (&space, amt, abfd) != amt)
1889 /* Setup the space name string. */
1890 space.name.n_name = space.name.n_strx + space_strings;
1892 /* Make a section out of it. */
1893 amt = strlen (space.name.n_name) + 1;
1894 newname = bfd_alloc (abfd, amt);
1897 strcpy (newname, space.name.n_name);
1899 space_asect = bfd_make_section_anyway (abfd, newname);
1903 if (space.is_loadable == 0)
1904 space_asect->flags |= SEC_DEBUGGING;
1906 /* Set up all the attributes for the space. */
1907 if (bfd_som_set_section_attributes (space_asect, space.is_defined,
1908 space.is_private, space.sort_key,
1909 space.space_number) == false)
1912 /* If the space has no subspaces, then we're done. */
1913 if (space.subspace_quantity == 0)
1916 /* Now, read in the first subspace for this space. */
1918 (current_offset + file_hdr->subspace_location
1919 + space.subspace_index * sizeof subspace),
1922 amt = sizeof subspace;
1923 if (bfd_bread (&subspace, amt, abfd) != amt)
1925 /* Seek back to the start of the subspaces for loop below. */
1927 (current_offset + file_hdr->subspace_location
1928 + space.subspace_index * sizeof subspace),
1932 /* Setup the start address and file loc from the first subspace
1934 space_asect->vma = subspace.subspace_start;
1935 space_asect->filepos = subspace.file_loc_init_value + current_offset;
1936 space_asect->alignment_power = log2 (subspace.alignment);
1937 if (space_asect->alignment_power == (unsigned) -1)
1940 /* Initialize save_subspace so we can reliably determine if this
1941 loop placed any useful values into it. */
1942 memset (&save_subspace, 0, sizeof (struct subspace_dictionary_record));
1944 /* Loop over the rest of the subspaces, building up more sections. */
1945 for (subspace_index = 0; subspace_index < space.subspace_quantity;
1948 asection *subspace_asect;
1950 /* Read in the next subspace. */
1951 amt = sizeof subspace;
1952 if (bfd_bread (&subspace, amt, abfd) != amt)
1955 /* Setup the subspace name string. */
1956 subspace.name.n_name = subspace.name.n_strx + space_strings;
1958 amt = strlen (subspace.name.n_name) + 1;
1959 newname = bfd_alloc (abfd, amt);
1962 strcpy (newname, subspace.name.n_name);
1964 /* Make a section out of this subspace. */
1965 subspace_asect = bfd_make_section_anyway (abfd, newname);
1966 if (!subspace_asect)
1969 /* Store private information about the section. */
1970 if (bfd_som_set_subsection_attributes (subspace_asect, space_asect,
1971 subspace.access_control_bits,
1973 subspace.quadrant) == false)
1976 /* Keep an easy mapping between subspaces and sections.
1977 Note we do not necessarily read the subspaces in the
1978 same order in which they appear in the object file.
1980 So to make the target index come out correctly, we
1981 store the location of the subspace header in target
1982 index, then sort using the location of the subspace
1983 header as the key. Then we can assign correct
1984 subspace indices. */
1986 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
1988 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
1989 by the access_control_bits in the subspace header. */
1990 switch (subspace.access_control_bits >> 4)
1992 /* Readonly data. */
1994 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
1999 subspace_asect->flags |= SEC_DATA;
2002 /* Readonly code and the gateways.
2003 Gateways have other attributes which do not map
2004 into anything BFD knows about. */
2010 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2013 /* dynamic (writable) code. */
2015 subspace_asect->flags |= SEC_CODE;
2019 if (subspace.dup_common || subspace.is_common)
2020 subspace_asect->flags |= SEC_IS_COMMON;
2021 else if (subspace.subspace_length > 0)
2022 subspace_asect->flags |= SEC_HAS_CONTENTS;
2024 if (subspace.is_loadable)
2025 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2027 subspace_asect->flags |= SEC_DEBUGGING;
2029 if (subspace.code_only)
2030 subspace_asect->flags |= SEC_CODE;
2032 /* Both file_loc_init_value and initialization_length will
2033 be zero for a BSS like subspace. */
2034 if (subspace.file_loc_init_value == 0
2035 && subspace.initialization_length == 0)
2036 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2038 /* This subspace has relocations.
2039 The fixup_request_quantity is a byte count for the number of
2040 entries in the relocation stream; it is not the actual number
2041 of relocations in the subspace. */
2042 if (subspace.fixup_request_quantity != 0)
2044 subspace_asect->flags |= SEC_RELOC;
2045 subspace_asect->rel_filepos = subspace.fixup_request_index;
2046 som_section_data (subspace_asect)->reloc_size
2047 = subspace.fixup_request_quantity;
2048 /* We can not determine this yet. When we read in the
2049 relocation table the correct value will be filled in. */
2050 subspace_asect->reloc_count = (unsigned) -1;
2053 /* Update save_subspace if appropriate. */
2054 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2055 save_subspace = subspace;
2057 subspace_asect->vma = subspace.subspace_start;
2058 subspace_asect->_cooked_size = subspace.subspace_length;
2059 subspace_asect->_raw_size = subspace.subspace_length;
2060 subspace_asect->filepos = (subspace.file_loc_init_value
2062 subspace_asect->alignment_power = log2 (subspace.alignment);
2063 if (subspace_asect->alignment_power == (unsigned) -1)
2067 /* This can happen for a .o which defines symbols in otherwise
2069 if (!save_subspace.file_loc_init_value)
2071 space_asect->_cooked_size = 0;
2072 space_asect->_raw_size = 0;
2076 /* Setup the sizes for the space section based upon the info in the
2077 last subspace of the space. */
2078 space_asect->_cooked_size = (save_subspace.subspace_start
2080 + save_subspace.subspace_length);
2081 space_asect->_raw_size = (save_subspace.file_loc_init_value
2082 - space_asect->filepos
2083 + save_subspace.initialization_length);
2086 /* Now that we've read in all the subspace records, we need to assign
2087 a target index to each subspace. */
2088 amt = total_subspaces;
2089 amt *= sizeof (asection *);
2090 subspace_sections = (asection **) bfd_malloc (amt);
2091 if (subspace_sections == NULL)
2094 for (i = 0, section = abfd->sections; section; section = section->next)
2096 if (!som_is_subspace (section))
2099 subspace_sections[i] = section;
2102 qsort (subspace_sections, total_subspaces,
2103 sizeof (asection *), compare_subspaces);
2105 /* subspace_sections is now sorted in the order in which the subspaces
2106 appear in the object file. Assign an index to each one now. */
2107 for (i = 0; i < total_subspaces; i++)
2108 subspace_sections[i]->target_index = i;
2110 if (space_strings != NULL)
2111 free (space_strings);
2113 if (subspace_sections != NULL)
2114 free (subspace_sections);
2119 if (space_strings != NULL)
2120 free (space_strings);
2122 if (subspace_sections != NULL)
2123 free (subspace_sections);
2127 /* Read in a SOM object and make it into a BFD. */
2129 static const bfd_target *
2133 struct header file_hdr;
2134 struct som_exec_auxhdr aux_hdr;
2135 unsigned long current_offset = 0;
2136 struct lst_header lst_header;
2137 struct som_entry som_entry;
2139 #define ENTRY_SIZE sizeof (struct som_entry)
2141 amt = FILE_HDR_SIZE;
2142 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2144 if (bfd_get_error () != bfd_error_system_call)
2145 bfd_set_error (bfd_error_wrong_format);
2149 if (!_PA_RISC_ID (file_hdr.system_id))
2151 bfd_set_error (bfd_error_wrong_format);
2155 switch (file_hdr.a_magic)
2167 #ifdef SHARED_MAGIC_CNX
2168 case SHARED_MAGIC_CNX:
2174 /* Read the lst header and determine where the SOM directory begins. */
2176 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2178 if (bfd_get_error () != bfd_error_system_call)
2179 bfd_set_error (bfd_error_wrong_format);
2184 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
2186 if (bfd_get_error () != bfd_error_system_call)
2187 bfd_set_error (bfd_error_wrong_format);
2191 /* Position to and read the first directory entry. */
2193 if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0)
2195 if (bfd_get_error () != bfd_error_system_call)
2196 bfd_set_error (bfd_error_wrong_format);
2201 if (bfd_bread ((PTR) &som_entry, amt, abfd) != amt)
2203 if (bfd_get_error () != bfd_error_system_call)
2204 bfd_set_error (bfd_error_wrong_format);
2208 /* Now position to the first SOM. */
2210 if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0)
2212 if (bfd_get_error () != bfd_error_system_call)
2213 bfd_set_error (bfd_error_wrong_format);
2217 current_offset = som_entry.location;
2219 /* And finally, re-read the som header. */
2220 amt = FILE_HDR_SIZE;
2221 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2223 if (bfd_get_error () != bfd_error_system_call)
2224 bfd_set_error (bfd_error_wrong_format);
2232 bfd_set_error (bfd_error_wrong_format);
2236 if (file_hdr.version_id != VERSION_ID
2237 && file_hdr.version_id != NEW_VERSION_ID)
2239 bfd_set_error (bfd_error_wrong_format);
2243 /* If the aux_header_size field in the file header is zero, then this
2244 object is an incomplete executable (a .o file). Do not try to read
2245 a non-existant auxiliary header. */
2246 memset (&aux_hdr, 0, sizeof (struct som_exec_auxhdr));
2247 if (file_hdr.aux_header_size != 0)
2250 if (bfd_bread ((PTR) &aux_hdr, amt, abfd) != amt)
2252 if (bfd_get_error () != bfd_error_system_call)
2253 bfd_set_error (bfd_error_wrong_format);
2258 if (!setup_sections (abfd, &file_hdr, current_offset))
2260 /* setup_sections does not bubble up a bfd error code. */
2261 bfd_set_error (bfd_error_bad_value);
2265 /* This appears to be a valid SOM object. Do some initialization. */
2266 return som_object_setup (abfd, &file_hdr, &aux_hdr, current_offset);
2269 /* Create a SOM object. */
2275 /* Allocate memory to hold backend information. */
2276 abfd->tdata.som_data = (struct som_data_struct *)
2277 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2278 if (abfd->tdata.som_data == NULL)
2283 /* Initialize some information in the file header. This routine makes
2284 not attempt at doing the right thing for a full executable; it
2285 is only meant to handle relocatable objects. */
2288 som_prep_headers (abfd)
2291 struct header *file_hdr;
2293 bfd_size_type amt = sizeof (struct header);
2295 /* Make and attach a file header to the BFD. */
2296 file_hdr = (struct header *) bfd_zalloc (abfd, amt);
2297 if (file_hdr == NULL)
2299 obj_som_file_hdr (abfd) = file_hdr;
2301 if (abfd->flags & (EXEC_P | DYNAMIC))
2304 /* Make and attach an exec header to the BFD. */
2305 amt = sizeof (struct som_exec_auxhdr);
2306 obj_som_exec_hdr (abfd) =
2307 (struct som_exec_auxhdr *) bfd_zalloc (abfd, amt);
2308 if (obj_som_exec_hdr (abfd) == NULL)
2311 if (abfd->flags & D_PAGED)
2312 file_hdr->a_magic = DEMAND_MAGIC;
2313 else if (abfd->flags & WP_TEXT)
2314 file_hdr->a_magic = SHARE_MAGIC;
2316 else if (abfd->flags & DYNAMIC)
2317 file_hdr->a_magic = SHL_MAGIC;
2320 file_hdr->a_magic = EXEC_MAGIC;
2323 file_hdr->a_magic = RELOC_MAGIC;
2325 /* These fields are optional, and embedding timestamps is not always
2326 a wise thing to do, it makes comparing objects during a multi-stage
2327 bootstrap difficult. */
2328 file_hdr->file_time.secs = 0;
2329 file_hdr->file_time.nanosecs = 0;
2331 file_hdr->entry_space = 0;
2332 file_hdr->entry_subspace = 0;
2333 file_hdr->entry_offset = 0;
2334 file_hdr->presumed_dp = 0;
2336 /* Now iterate over the sections translating information from
2337 BFD sections to SOM spaces/subspaces. */
2339 for (section = abfd->sections; section != NULL; section = section->next)
2341 /* Ignore anything which has not been marked as a space or
2343 if (!som_is_space (section) && !som_is_subspace (section))
2346 if (som_is_space (section))
2348 /* Allocate space for the space dictionary. */
2349 amt = sizeof (struct space_dictionary_record);
2350 som_section_data (section)->space_dict =
2351 (struct space_dictionary_record *) bfd_zalloc (abfd, amt);
2352 if (som_section_data (section)->space_dict == NULL)
2354 /* Set space attributes. Note most attributes of SOM spaces
2355 are set based on the subspaces it contains. */
2356 som_section_data (section)->space_dict->loader_fix_index = -1;
2357 som_section_data (section)->space_dict->init_pointer_index = -1;
2359 /* Set more attributes that were stuffed away in private data. */
2360 som_section_data (section)->space_dict->sort_key =
2361 som_section_data (section)->copy_data->sort_key;
2362 som_section_data (section)->space_dict->is_defined =
2363 som_section_data (section)->copy_data->is_defined;
2364 som_section_data (section)->space_dict->is_private =
2365 som_section_data (section)->copy_data->is_private;
2366 som_section_data (section)->space_dict->space_number =
2367 som_section_data (section)->copy_data->space_number;
2371 /* Allocate space for the subspace dictionary. */
2372 amt = sizeof (struct subspace_dictionary_record);
2373 som_section_data (section)->subspace_dict =
2374 (struct subspace_dictionary_record *) bfd_zalloc (abfd, amt);
2375 if (som_section_data (section)->subspace_dict == NULL)
2378 /* Set subspace attributes. Basic stuff is done here, additional
2379 attributes are filled in later as more information becomes
2381 if (section->flags & SEC_IS_COMMON)
2383 som_section_data (section)->subspace_dict->dup_common = 1;
2384 som_section_data (section)->subspace_dict->is_common = 1;
2387 if (section->flags & SEC_ALLOC)
2388 som_section_data (section)->subspace_dict->is_loadable = 1;
2390 if (section->flags & SEC_CODE)
2391 som_section_data (section)->subspace_dict->code_only = 1;
2393 som_section_data (section)->subspace_dict->subspace_start =
2395 som_section_data (section)->subspace_dict->subspace_length =
2396 bfd_section_size (abfd, section);
2397 som_section_data (section)->subspace_dict->initialization_length =
2398 bfd_section_size (abfd, section);
2399 som_section_data (section)->subspace_dict->alignment =
2400 1 << section->alignment_power;
2402 /* Set more attributes that were stuffed away in private data. */
2403 som_section_data (section)->subspace_dict->sort_key =
2404 som_section_data (section)->copy_data->sort_key;
2405 som_section_data (section)->subspace_dict->access_control_bits =
2406 som_section_data (section)->copy_data->access_control_bits;
2407 som_section_data (section)->subspace_dict->quadrant =
2408 som_section_data (section)->copy_data->quadrant;
2414 /* Return true if the given section is a SOM space, false otherwise. */
2417 som_is_space (section)
2420 /* If no copy data is available, then it's neither a space nor a
2422 if (som_section_data (section)->copy_data == NULL)
2425 /* If the containing space isn't the same as the given section,
2426 then this isn't a space. */
2427 if (som_section_data (section)->copy_data->container != section
2428 && (som_section_data (section)->copy_data->container->output_section
2432 /* OK. Must be a space. */
2436 /* Return true if the given section is a SOM subspace, false otherwise. */
2439 som_is_subspace (section)
2442 /* If no copy data is available, then it's neither a space nor a
2444 if (som_section_data (section)->copy_data == NULL)
2447 /* If the containing space is the same as the given section,
2448 then this isn't a subspace. */
2449 if (som_section_data (section)->copy_data->container == section
2450 || (som_section_data (section)->copy_data->container->output_section
2454 /* OK. Must be a subspace. */
2458 /* Return true if the given space containins the given subspace. It
2459 is safe to assume space really is a space, and subspace really
2463 som_is_container (space, subspace)
2464 asection *space, *subspace;
2466 return (som_section_data (subspace)->copy_data->container == space
2467 || (som_section_data (subspace)->copy_data->container->output_section
2471 /* Count and return the number of spaces attached to the given BFD. */
2473 static unsigned long
2474 som_count_spaces (abfd)
2480 for (section = abfd->sections; section != NULL; section = section->next)
2481 count += som_is_space (section);
2486 /* Count the number of subspaces attached to the given BFD. */
2488 static unsigned long
2489 som_count_subspaces (abfd)
2495 for (section = abfd->sections; section != NULL; section = section->next)
2496 count += som_is_subspace (section);
2501 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2503 We desire symbols to be ordered starting with the symbol with the
2504 highest relocation count down to the symbol with the lowest relocation
2505 count. Doing so compacts the relocation stream. */
2508 compare_syms (arg1, arg2)
2513 asymbol **sym1 = (asymbol **) arg1;
2514 asymbol **sym2 = (asymbol **) arg2;
2515 unsigned int count1, count2;
2517 /* Get relocation count for each symbol. Note that the count
2518 is stored in the udata pointer for section symbols! */
2519 if ((*sym1)->flags & BSF_SECTION_SYM)
2520 count1 = (*sym1)->udata.i;
2522 count1 = som_symbol_data (*sym1)->reloc_count;
2524 if ((*sym2)->flags & BSF_SECTION_SYM)
2525 count2 = (*sym2)->udata.i;
2527 count2 = som_symbol_data (*sym2)->reloc_count;
2529 /* Return the appropriate value. */
2530 if (count1 < count2)
2532 else if (count1 > count2)
2537 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2541 compare_subspaces (arg1, arg2)
2546 asection **subspace1 = (asection **) arg1;
2547 asection **subspace2 = (asection **) arg2;
2549 if ((*subspace1)->target_index < (*subspace2)->target_index)
2551 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2557 /* Perform various work in preparation for emitting the fixup stream. */
2560 som_prep_for_fixups (abfd, syms, num_syms)
2563 unsigned long num_syms;
2567 asymbol **sorted_syms;
2570 /* Most SOM relocations involving a symbol have a length which is
2571 dependent on the index of the symbol. So symbols which are
2572 used often in relocations should have a small index. */
2574 /* First initialize the counters for each symbol. */
2575 for (i = 0; i < num_syms; i++)
2577 /* Handle a section symbol; these have no pointers back to the
2578 SOM symbol info. So we just use the udata field to hold the
2579 relocation count. */
2580 if (som_symbol_data (syms[i]) == NULL
2581 || syms[i]->flags & BSF_SECTION_SYM)
2583 syms[i]->flags |= BSF_SECTION_SYM;
2584 syms[i]->udata.i = 0;
2587 som_symbol_data (syms[i])->reloc_count = 0;
2590 /* Now that the counters are initialized, make a weighted count
2591 of how often a given symbol is used in a relocation. */
2592 for (section = abfd->sections; section != NULL; section = section->next)
2596 /* Does this section have any relocations? */
2597 if ((int) section->reloc_count <= 0)
2600 /* Walk through each relocation for this section. */
2601 for (j = 1; j < (int) section->reloc_count; j++)
2603 arelent *reloc = section->orelocation[j];
2606 /* A relocation against a symbol in the *ABS* section really
2607 does not have a symbol. Likewise if the symbol isn't associated
2608 with any section. */
2609 if (reloc->sym_ptr_ptr == NULL
2610 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2613 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2614 and R_CODE_ONE_SYMBOL relocations to come first. These
2615 two relocations have single byte versions if the symbol
2616 index is very small. */
2617 if (reloc->howto->type == R_DP_RELATIVE
2618 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2623 /* Handle section symbols by storing the count in the udata
2624 field. It will not be used and the count is very important
2625 for these symbols. */
2626 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2628 (*reloc->sym_ptr_ptr)->udata.i =
2629 (*reloc->sym_ptr_ptr)->udata.i + scale;
2633 /* A normal symbol. Increment the count. */
2634 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2638 /* Sort a copy of the symbol table, rather than the canonical
2639 output symbol table. */
2641 amt *= sizeof (asymbol *);
2642 sorted_syms = (asymbol **) bfd_zalloc (abfd, amt);
2643 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2644 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2645 obj_som_sorted_syms (abfd) = sorted_syms;
2647 /* Compute the symbol indexes, they will be needed by the relocation
2649 for (i = 0; i < num_syms; i++)
2651 /* A section symbol. Again, there is no pointer to backend symbol
2652 information, so we reuse the udata field again. */
2653 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2654 sorted_syms[i]->udata.i = i;
2656 som_symbol_data (sorted_syms[i])->index = i;
2661 som_write_fixups (abfd, current_offset, total_reloc_sizep)
2663 unsigned long current_offset;
2664 unsigned int *total_reloc_sizep;
2667 /* Chunk of memory that we can use as buffer space, then throw
2669 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2671 unsigned int total_reloc_size = 0;
2672 unsigned int subspace_reloc_size = 0;
2673 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2674 asection *section = abfd->sections;
2677 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2680 /* All the fixups for a particular subspace are emitted in a single
2681 stream. All the subspaces for a particular space are emitted
2684 So, to get all the locations correct one must iterate through all the
2685 spaces, for each space iterate through its subspaces and output a
2687 for (i = 0; i < num_spaces; i++)
2689 asection *subsection;
2692 while (!som_is_space (section))
2693 section = section->next;
2695 /* Now iterate through each of its subspaces. */
2696 for (subsection = abfd->sections;
2698 subsection = subsection->next)
2701 unsigned int current_rounding_mode;
2702 #ifndef NO_PCREL_MODES
2703 int current_call_mode;
2706 /* Find a subspace of this space. */
2707 if (!som_is_subspace (subsection)
2708 || !som_is_container (section, subsection))
2711 /* If this subspace does not have real data, then we are
2713 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2715 som_section_data (subsection)->subspace_dict->fixup_request_index
2720 /* This subspace has some relocations. Put the relocation stream
2721 index into the subspace record. */
2722 som_section_data (subsection)->subspace_dict->fixup_request_index
2725 /* To make life easier start over with a clean slate for
2726 each subspace. Seek to the start of the relocation stream
2727 for this subspace in preparation for writing out its fixup
2729 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2732 /* Buffer space has already been allocated. Just perform some
2733 initialization here. */
2735 subspace_reloc_size = 0;
2737 som_initialize_reloc_queue (reloc_queue);
2738 current_rounding_mode = R_N_MODE;
2739 #ifndef NO_PCREL_MODES
2740 current_call_mode = R_SHORT_PCREL_MODE;
2743 /* Translate each BFD relocation into one or more SOM
2745 for (j = 0; j < subsection->reloc_count; j++)
2747 arelent *bfd_reloc = subsection->orelocation[j];
2751 /* Get the symbol number. Remember it's stored in a
2752 special place for section symbols. */
2753 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2754 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2756 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2758 /* If there is not enough room for the next couple relocations,
2759 then dump the current buffer contents now. Also reinitialize
2760 the relocation queue.
2762 No single BFD relocation could ever translate into more
2763 than 100 bytes of SOM relocations (20bytes is probably the
2764 upper limit, but leave lots of space for growth). */
2765 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2767 amt = p - tmp_space;
2768 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
2772 som_initialize_reloc_queue (reloc_queue);
2775 /* Emit R_NO_RELOCATION fixups to map any bytes which were
2777 skip = bfd_reloc->address - reloc_offset;
2778 p = som_reloc_skip (abfd, skip, p,
2779 &subspace_reloc_size, reloc_queue);
2781 /* Update reloc_offset for the next iteration.
2783 Many relocations do not consume input bytes. They
2784 are markers, or set state necessary to perform some
2785 later relocation. */
2786 switch (bfd_reloc->howto->type)
2806 #ifndef NO_PCREL_MODES
2807 case R_SHORT_PCREL_MODE:
2808 case R_LONG_PCREL_MODE:
2810 reloc_offset = bfd_reloc->address;
2814 reloc_offset = bfd_reloc->address + 4;
2818 /* Now the actual relocation we care about. */
2819 switch (bfd_reloc->howto->type)
2823 p = som_reloc_call (abfd, p, &subspace_reloc_size,
2824 bfd_reloc, sym_num, reloc_queue);
2827 case R_CODE_ONE_SYMBOL:
2829 /* Account for any addend. */
2830 if (bfd_reloc->addend)
2831 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2832 &subspace_reloc_size, reloc_queue);
2836 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
2837 subspace_reloc_size += 1;
2840 else if (sym_num < 0x100)
2842 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
2843 bfd_put_8 (abfd, sym_num, p + 1);
2844 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2847 else if (sym_num < 0x10000000)
2849 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
2850 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2851 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2852 p = try_prev_fixup (abfd, &subspace_reloc_size,
2859 case R_DATA_ONE_SYMBOL:
2863 /* Account for any addend using R_DATA_OVERRIDE. */
2864 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
2865 && bfd_reloc->addend)
2866 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2867 &subspace_reloc_size, reloc_queue);
2869 if (sym_num < 0x100)
2871 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2872 bfd_put_8 (abfd, sym_num, p + 1);
2873 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2876 else if (sym_num < 0x10000000)
2878 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2879 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2880 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2881 p = try_prev_fixup (abfd, &subspace_reloc_size,
2891 arelent *tmp_reloc = NULL;
2892 bfd_put_8 (abfd, R_ENTRY, p);
2894 /* R_ENTRY relocations have 64 bits of associated
2895 data. Unfortunately the addend field of a bfd
2896 relocation is only 32 bits. So, we split up
2897 the 64bit unwind information and store part in
2898 the R_ENTRY relocation, and the rest in the R_EXIT
2900 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
2902 /* Find the next R_EXIT relocation. */
2903 for (tmp = j; tmp < subsection->reloc_count; tmp++)
2905 tmp_reloc = subsection->orelocation[tmp];
2906 if (tmp_reloc->howto->type == R_EXIT)
2910 if (tmp == subsection->reloc_count)
2913 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
2914 p = try_prev_fixup (abfd, &subspace_reloc_size,
2923 /* If this relocation requests the current rounding
2924 mode, then it is redundant. */
2925 if (bfd_reloc->howto->type != current_rounding_mode)
2927 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2928 subspace_reloc_size += 1;
2930 current_rounding_mode = bfd_reloc->howto->type;
2934 #ifndef NO_PCREL_MODES
2935 case R_LONG_PCREL_MODE:
2936 case R_SHORT_PCREL_MODE:
2937 if (bfd_reloc->howto->type != current_call_mode)
2939 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2940 subspace_reloc_size += 1;
2942 current_call_mode = bfd_reloc->howto->type;
2957 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2958 subspace_reloc_size += 1;
2963 /* The end of an exception handling region. The reloc's
2964 addend contains the offset of the exception handling
2966 if (bfd_reloc->addend == 0)
2967 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2968 else if (bfd_reloc->addend < 1024)
2970 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2971 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
2972 p = try_prev_fixup (abfd, &subspace_reloc_size,
2977 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
2978 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
2979 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
2980 p = try_prev_fixup (abfd, &subspace_reloc_size,
2986 /* The only time we generate R_COMP1, R_COMP2 and
2987 R_CODE_EXPR relocs is for the difference of two
2988 symbols. Hence we can cheat here. */
2989 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2990 bfd_put_8 (abfd, 0x44, p + 1);
2991 p = try_prev_fixup (abfd, &subspace_reloc_size,
2996 /* The only time we generate R_COMP1, R_COMP2 and
2997 R_CODE_EXPR relocs is for the difference of two
2998 symbols. Hence we can cheat here. */
2999 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3000 bfd_put_8 (abfd, 0x80, p + 1);
3001 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3002 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3003 p = try_prev_fixup (abfd, &subspace_reloc_size,
3009 /* The only time we generate R_COMP1, R_COMP2 and
3010 R_CODE_EXPR relocs is for the difference of two
3011 symbols. Hence we can cheat here. */
3012 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3013 subspace_reloc_size += 1;
3017 /* Put a "R_RESERVED" relocation in the stream if
3018 we hit something we do not understand. The linker
3019 will complain loudly if this ever happens. */
3021 bfd_put_8 (abfd, 0xff, p);
3022 subspace_reloc_size += 1;
3028 /* Last BFD relocation for a subspace has been processed.
3029 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3030 p = som_reloc_skip (abfd, bfd_section_size (abfd, subsection)
3032 p, &subspace_reloc_size, reloc_queue);
3034 /* Scribble out the relocations. */
3035 amt = p - tmp_space;
3036 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
3040 total_reloc_size += subspace_reloc_size;
3041 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3042 = subspace_reloc_size;
3044 section = section->next;
3046 *total_reloc_sizep = total_reloc_size;
3050 /* Write out the space/subspace string table. */
3053 som_write_space_strings (abfd, current_offset, string_sizep)
3055 unsigned long current_offset;
3056 unsigned int *string_sizep;
3058 /* Chunk of memory that we can use as buffer space, then throw
3060 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3061 unsigned char *tmp_space = alloca (tmp_space_size);
3062 unsigned char *p = tmp_space;
3063 unsigned int strings_size = 0;
3067 /* Seek to the start of the space strings in preparation for writing
3069 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3072 /* Walk through all the spaces and subspaces (order is not important)
3073 building up and writing string table entries for their names. */
3074 for (section = abfd->sections; section != NULL; section = section->next)
3078 /* Only work with space/subspaces; avoid any other sections
3079 which might have been made (.text for example). */
3080 if (!som_is_space (section) && !som_is_subspace (section))
3083 /* Get the length of the space/subspace name. */
3084 length = strlen (section->name);
3086 /* If there is not enough room for the next entry, then dump the
3087 current buffer contents now and maybe allocate a larger
3088 buffer. Each entry will take 4 bytes to hold the string
3089 length + the string itself + null terminator. */
3090 if (p - tmp_space + 5 + length > tmp_space_size)
3092 /* Flush buffer before refilling or reallocating. */
3093 amt = p - tmp_space;
3094 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3097 /* Reallocate if now empty buffer still too small. */
3098 if (5 + length > tmp_space_size)
3100 /* Ensure a minimum growth factor to avoid O(n**2) space
3101 consumption for n strings. The optimal minimum
3102 factor seems to be 2, as no other value can guarantee
3103 wasting less then 50% space. (Note that we cannot
3104 deallocate space allocated by `alloca' without
3105 returning from this function.) The same technique is
3106 used a few more times below when a buffer is
3108 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3109 tmp_space = alloca (tmp_space_size);
3112 /* Reset to beginning of the (possibly new) buffer space. */
3116 /* First element in a string table entry is the length of the
3117 string. Alignment issues are already handled. */
3118 bfd_put_32 (abfd, (bfd_vma) length, p);
3122 /* Record the index in the space/subspace records. */
3123 if (som_is_space (section))
3124 som_section_data (section)->space_dict->name.n_strx = strings_size;
3126 som_section_data (section)->subspace_dict->name.n_strx = strings_size;
3128 /* Next comes the string itself + a null terminator. */
3129 strcpy (p, section->name);
3131 strings_size += length + 1;
3133 /* Always align up to the next word boundary. */
3134 while (strings_size % 4)
3136 bfd_put_8 (abfd, 0, p);
3142 /* Done with the space/subspace strings. Write out any information
3143 contained in a partial block. */
3144 amt = p - tmp_space;
3145 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3147 *string_sizep = strings_size;
3151 /* Write out the symbol string table. */
3154 som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep,
3157 unsigned long current_offset;
3159 unsigned int num_syms;
3160 unsigned int *string_sizep;
3161 COMPUNIT *compilation_unit;
3165 /* Chunk of memory that we can use as buffer space, then throw
3167 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3168 unsigned char *tmp_space = alloca (tmp_space_size);
3169 unsigned char *p = tmp_space;
3171 unsigned int strings_size = 0;
3172 unsigned char *comp[4];
3175 /* This gets a bit gruesome because of the compilation unit. The
3176 strings within the compilation unit are part of the symbol
3177 strings, but don't have symbol_dictionary entries. So, manually
3178 write them and update the compliation unit header. On input, the
3179 compilation unit header contains local copies of the strings.
3181 if (compilation_unit)
3183 comp[0] = compilation_unit->name.n_name;
3184 comp[1] = compilation_unit->language_name.n_name;
3185 comp[2] = compilation_unit->product_id.n_name;
3186 comp[3] = compilation_unit->version_id.n_name;
3189 /* Seek to the start of the space strings in preparation for writing
3191 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3194 if (compilation_unit)
3196 for (i = 0; i < 4; i++)
3198 size_t length = strlen (comp[i]);
3200 /* If there is not enough room for the next entry, then dump
3201 the current buffer contents now and maybe allocate a
3203 if (p - tmp_space + 5 + length > tmp_space_size)
3205 /* Flush buffer before refilling or reallocating. */
3206 amt = p - tmp_space;
3207 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3210 /* Reallocate if now empty buffer still too small. */
3211 if (5 + length > tmp_space_size)
3213 /* See alloca above for discussion of new size. */
3214 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3215 tmp_space = alloca (tmp_space_size);
3218 /* Reset to beginning of the (possibly new) buffer
3223 /* First element in a string table entry is the length of
3224 the string. This must always be 4 byte aligned. This is
3225 also an appropriate time to fill in the string index
3226 field in the symbol table entry. */
3227 bfd_put_32 (abfd, (bfd_vma) length, p);
3231 /* Next comes the string itself + a null terminator. */
3232 strcpy (p, comp[i]);
3237 obj_som_compilation_unit (abfd)->name.n_strx = strings_size;
3240 obj_som_compilation_unit (abfd)->language_name.n_strx =
3244 obj_som_compilation_unit (abfd)->product_id.n_strx =
3248 obj_som_compilation_unit (abfd)->version_id.n_strx =
3254 strings_size += length + 1;
3256 /* Always align up to the next word boundary. */
3257 while (strings_size % 4)
3259 bfd_put_8 (abfd, 0, p);
3266 for (i = 0; i < num_syms; i++)
3268 size_t length = strlen (syms[i]->name);
3270 /* If there is not enough room for the next entry, then dump the
3271 current buffer contents now and maybe allocate a larger buffer. */
3272 if (p - tmp_space + 5 + length > tmp_space_size)
3274 /* Flush buffer before refilling or reallocating. */
3275 amt = p - tmp_space;
3276 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3279 /* Reallocate if now empty buffer still too small. */
3280 if (5 + length > tmp_space_size)
3282 /* See alloca above for discussion of new size. */
3283 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3284 tmp_space = alloca (tmp_space_size);
3287 /* Reset to beginning of the (possibly new) buffer space. */
3291 /* First element in a string table entry is the length of the
3292 string. This must always be 4 byte aligned. This is also
3293 an appropriate time to fill in the string index field in the
3294 symbol table entry. */
3295 bfd_put_32 (abfd, (bfd_vma) length, p);
3299 /* Next comes the string itself + a null terminator. */
3300 strcpy (p, syms[i]->name);
3302 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3304 strings_size += length + 1;
3306 /* Always align up to the next word boundary. */
3307 while (strings_size % 4)
3309 bfd_put_8 (abfd, 0, p);
3315 /* Scribble out any partial block. */
3316 amt = p - tmp_space;
3317 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3320 *string_sizep = strings_size;
3324 /* Compute variable information to be placed in the SOM headers,
3325 space/subspace dictionaries, relocation streams, etc. Begin
3326 writing parts of the object file. */
3329 som_begin_writing (abfd)
3332 unsigned long current_offset = 0;
3333 int strings_size = 0;
3334 unsigned long num_spaces, num_subspaces, i;
3336 unsigned int total_subspaces = 0;
3337 struct som_exec_auxhdr *exec_header = NULL;
3339 /* The file header will always be first in an object file,
3340 everything else can be in random locations. To keep things
3341 "simple" BFD will lay out the object file in the manner suggested
3342 by the PRO ABI for PA-RISC Systems. */
3344 /* Before any output can really begin offsets for all the major
3345 portions of the object file must be computed. So, starting
3346 with the initial file header compute (and sometimes write)
3347 each portion of the object file. */
3349 /* Make room for the file header, it's contents are not complete
3350 yet, so it can not be written at this time. */
3351 current_offset += sizeof (struct header);
3353 /* Any auxiliary headers will follow the file header. Right now
3354 we support only the copyright and version headers. */
3355 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3356 obj_som_file_hdr (abfd)->aux_header_size = 0;
3357 if (abfd->flags & (EXEC_P | DYNAMIC))
3359 /* Parts of the exec header will be filled in later, so
3360 delay writing the header itself. Fill in the defaults,
3361 and write it later. */
3362 current_offset += sizeof (struct som_exec_auxhdr);
3363 obj_som_file_hdr (abfd)->aux_header_size
3364 += sizeof (struct som_exec_auxhdr);
3365 exec_header = obj_som_exec_hdr (abfd);
3366 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3367 exec_header->som_auxhdr.length = 40;
3369 if (obj_som_version_hdr (abfd) != NULL)
3373 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3376 /* Write the aux_id structure and the string length. */
3377 len = sizeof (struct aux_id) + sizeof (unsigned int);
3378 obj_som_file_hdr (abfd)->aux_header_size += len;
3379 current_offset += len;
3380 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd), len, abfd) != len)
3383 /* Write the version string. */
3384 len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
3385 obj_som_file_hdr (abfd)->aux_header_size += len;
3386 current_offset += len;
3387 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd)->user_string, len, abfd)
3392 if (obj_som_copyright_hdr (abfd) != NULL)
3396 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3399 /* Write the aux_id structure and the string length. */
3400 len = sizeof (struct aux_id) + sizeof (unsigned int);
3401 obj_som_file_hdr (abfd)->aux_header_size += len;
3402 current_offset += len;
3403 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd), len, abfd) != len)
3406 /* Write the copyright string. */
3407 len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
3408 obj_som_file_hdr (abfd)->aux_header_size += len;
3409 current_offset += len;
3410 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
3415 /* Next comes the initialization pointers; we have no initialization
3416 pointers, so current offset does not change. */
3417 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3418 obj_som_file_hdr (abfd)->init_array_total = 0;
3420 /* Next are the space records. These are fixed length records.
3422 Count the number of spaces to determine how much room is needed
3423 in the object file for the space records.
3425 The names of the spaces are stored in a separate string table,
3426 and the index for each space into the string table is computed
3427 below. Therefore, it is not possible to write the space headers
3429 num_spaces = som_count_spaces (abfd);
3430 obj_som_file_hdr (abfd)->space_location = current_offset;
3431 obj_som_file_hdr (abfd)->space_total = num_spaces;
3432 current_offset += num_spaces * sizeof (struct space_dictionary_record);
3434 /* Next are the subspace records. These are fixed length records.
3436 Count the number of subspaes to determine how much room is needed
3437 in the object file for the subspace records.
3439 A variety if fields in the subspace record are still unknown at
3440 this time (index into string table, fixup stream location/size, etc). */
3441 num_subspaces = som_count_subspaces (abfd);
3442 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3443 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3444 current_offset += num_subspaces * sizeof (struct subspace_dictionary_record);
3446 /* Next is the string table for the space/subspace names. We will
3447 build and write the string table on the fly. At the same time
3448 we will fill in the space/subspace name index fields. */
3450 /* The string table needs to be aligned on a word boundary. */
3451 if (current_offset % 4)
3452 current_offset += (4 - (current_offset % 4));
3454 /* Mark the offset of the space/subspace string table in the
3456 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3458 /* Scribble out the space strings. */
3459 if (som_write_space_strings (abfd, current_offset, &strings_size) == false)
3462 /* Record total string table size in the header and update the
3464 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3465 current_offset += strings_size;
3467 /* Next is the compilation unit. */
3468 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3469 obj_som_file_hdr (abfd)->compiler_total = 0;
3470 if (obj_som_compilation_unit (abfd))
3472 obj_som_file_hdr (abfd)->compiler_total = 1;
3473 current_offset += COMPUNITSZ;
3476 /* Now compute the file positions for the loadable subspaces, taking
3477 care to make sure everything stays properly aligned. */
3479 section = abfd->sections;
3480 for (i = 0; i < num_spaces; i++)
3482 asection *subsection;
3484 unsigned int subspace_offset = 0;
3487 while (!som_is_space (section))
3488 section = section->next;
3491 /* Now look for all its subspaces. */
3492 for (subsection = abfd->sections;
3494 subsection = subsection->next)
3497 if (!som_is_subspace (subsection)
3498 || !som_is_container (section, subsection)
3499 || (subsection->flags & SEC_ALLOC) == 0)
3502 /* If this is the first subspace in the space, and we are
3503 building an executable, then take care to make sure all
3504 the alignments are correct and update the exec header. */
3506 && (abfd->flags & (EXEC_P | DYNAMIC)))
3508 /* Demand paged executables have each space aligned to a
3509 page boundary. Sharable executables (write-protected
3510 text) have just the private (aka data & bss) space aligned
3511 to a page boundary. Ugh. Not true for HPUX.
3513 The HPUX kernel requires the text to always be page aligned
3514 within the file regardless of the executable's type. */
3515 if (abfd->flags & (D_PAGED | DYNAMIC)
3516 || (subsection->flags & SEC_CODE)
3517 || ((abfd->flags & WP_TEXT)
3518 && (subsection->flags & SEC_DATA)))
3519 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3521 /* Update the exec header. */
3522 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3524 exec_header->exec_tmem = section->vma;
3525 exec_header->exec_tfile = current_offset;
3527 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3529 exec_header->exec_dmem = section->vma;
3530 exec_header->exec_dfile = current_offset;
3533 /* Keep track of exactly where we are within a particular
3534 space. This is necessary as the braindamaged HPUX
3535 loader will create holes between subspaces *and*
3536 subspace alignments are *NOT* preserved. What a crock. */
3537 subspace_offset = subsection->vma;
3539 /* Only do this for the first subspace within each space. */
3542 else if (abfd->flags & (EXEC_P | DYNAMIC))
3544 /* The braindamaged HPUX loader may have created a hole
3545 between two subspaces. It is *not* sufficient to use
3546 the alignment specifications within the subspaces to
3547 account for these holes -- I've run into at least one
3548 case where the loader left one code subspace unaligned
3549 in a final executable.
3551 To combat this we keep a current offset within each space,
3552 and use the subspace vma fields to detect and preserve
3553 holes. What a crock!
3555 ps. This is not necessary for unloadable space/subspaces. */
3556 current_offset += subsection->vma - subspace_offset;
3557 if (subsection->flags & SEC_CODE)
3558 exec_header->exec_tsize += subsection->vma - subspace_offset;
3560 exec_header->exec_dsize += subsection->vma - subspace_offset;
3561 subspace_offset += subsection->vma - subspace_offset;
3564 subsection->target_index = total_subspaces++;
3565 /* This is real data to be loaded from the file. */
3566 if (subsection->flags & SEC_LOAD)
3568 /* Update the size of the code & data. */
3569 if (abfd->flags & (EXEC_P | DYNAMIC)
3570 && subsection->flags & SEC_CODE)
3571 exec_header->exec_tsize += subsection->_cooked_size;
3572 else if (abfd->flags & (EXEC_P | DYNAMIC)
3573 && subsection->flags & SEC_DATA)
3574 exec_header->exec_dsize += subsection->_cooked_size;
3575 som_section_data (subsection)->subspace_dict->file_loc_init_value
3577 subsection->filepos = current_offset;
3578 current_offset += bfd_section_size (abfd, subsection);
3579 subspace_offset += bfd_section_size (abfd, subsection);
3581 /* Looks like uninitialized data. */
3584 /* Update the size of the bss section. */
3585 if (abfd->flags & (EXEC_P | DYNAMIC))
3586 exec_header->exec_bsize += subsection->_cooked_size;
3588 som_section_data (subsection)->subspace_dict->file_loc_init_value
3590 som_section_data (subsection)->subspace_dict->
3591 initialization_length = 0;
3594 /* Goto the next section. */
3595 section = section->next;
3598 /* Finally compute the file positions for unloadable subspaces.
3599 If building an executable, start the unloadable stuff on its
3602 if (abfd->flags & (EXEC_P | DYNAMIC))
3603 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3605 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3606 section = abfd->sections;
3607 for (i = 0; i < num_spaces; i++)
3609 asection *subsection;
3612 while (!som_is_space (section))
3613 section = section->next;
3615 if (abfd->flags & (EXEC_P | DYNAMIC))
3616 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3618 /* Now look for all its subspaces. */
3619 for (subsection = abfd->sections;
3621 subsection = subsection->next)
3624 if (!som_is_subspace (subsection)
3625 || !som_is_container (section, subsection)
3626 || (subsection->flags & SEC_ALLOC) != 0)
3629 subsection->target_index = total_subspaces++;
3630 /* This is real data to be loaded from the file. */
3631 if ((subsection->flags & SEC_LOAD) == 0)
3633 som_section_data (subsection)->subspace_dict->file_loc_init_value
3635 subsection->filepos = current_offset;
3636 current_offset += bfd_section_size (abfd, subsection);
3638 /* Looks like uninitialized data. */
3641 som_section_data (subsection)->subspace_dict->file_loc_init_value
3643 som_section_data (subsection)->subspace_dict->
3644 initialization_length = bfd_section_size (abfd, subsection);
3647 /* Goto the next section. */
3648 section = section->next;
3651 /* If building an executable, then make sure to seek to and write
3652 one byte at the end of the file to make sure any necessary
3653 zeros are filled in. Ugh. */
3654 if (abfd->flags & (EXEC_P | DYNAMIC))
3655 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3656 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3658 if (bfd_bwrite ((PTR) "", (bfd_size_type) 1, abfd) != 1)
3661 obj_som_file_hdr (abfd)->unloadable_sp_size
3662 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3664 /* Loader fixups are not supported in any way shape or form. */
3665 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3666 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3668 /* Done. Store the total size of the SOM so far. */
3669 obj_som_file_hdr (abfd)->som_length = current_offset;
3674 /* Finally, scribble out the various headers to the disk. */
3677 som_finish_writing (abfd)
3680 int num_spaces = som_count_spaces (abfd);
3681 asymbol **syms = bfd_get_outsymbols (abfd);
3682 int i, num_syms, strings_size;
3683 int subspace_index = 0;
3686 unsigned long current_offset;
3687 unsigned int total_reloc_size;
3690 /* We must set up the version identifier here as objcopy/strip copy
3691 private BFD data too late for us to handle this in som_begin_writing. */
3692 if (obj_som_exec_data (abfd)
3693 && obj_som_exec_data (abfd)->version_id)
3694 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3696 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3698 /* Next is the symbol table. These are fixed length records.
3700 Count the number of symbols to determine how much room is needed
3701 in the object file for the symbol table.
3703 The names of the symbols are stored in a separate string table,
3704 and the index for each symbol name into the string table is computed
3705 below. Therefore, it is not possible to write the symbol table
3708 These used to be output before the subspace contents, but they
3709 were moved here to work around a stupid bug in the hpux linker
3710 (fixed in hpux10). */
3711 current_offset = obj_som_file_hdr (abfd)->som_length;
3713 /* Make sure we're on a word boundary. */
3714 if (current_offset % 4)
3715 current_offset += (4 - (current_offset % 4));
3717 num_syms = bfd_get_symcount (abfd);
3718 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3719 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3720 current_offset += num_syms * sizeof (struct symbol_dictionary_record);
3722 /* Next are the symbol strings.
3723 Align them to a word boundary. */
3724 if (current_offset % 4)
3725 current_offset += (4 - (current_offset % 4));
3726 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3728 /* Scribble out the symbol strings. */
3729 if (som_write_symbol_strings (abfd, current_offset, syms,
3730 num_syms, &strings_size,
3731 obj_som_compilation_unit (abfd))
3735 /* Record total string table size in header and update the
3737 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3738 current_offset += strings_size;
3740 /* Do prep work before handling fixups. */
3741 som_prep_for_fixups (abfd,
3742 bfd_get_outsymbols (abfd),
3743 bfd_get_symcount (abfd));
3745 /* At the end of the file is the fixup stream which starts on a
3747 if (current_offset % 4)
3748 current_offset += (4 - (current_offset % 4));
3749 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
3751 /* Write the fixups and update fields in subspace headers which
3752 relate to the fixup stream. */
3753 if (som_write_fixups (abfd, current_offset, &total_reloc_size) == false)
3756 /* Record the total size of the fixup stream in the file header. */
3757 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
3759 /* Done. Store the total size of the SOM. */
3760 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
3762 /* Now that the symbol table information is complete, build and
3763 write the symbol table. */
3764 if (som_build_and_write_symbol_table (abfd) == false)
3767 /* Subspaces are written first so that we can set up information
3768 about them in their containing spaces as the subspace is written. */
3770 /* Seek to the start of the subspace dictionary records. */
3771 location = obj_som_file_hdr (abfd)->subspace_location;
3772 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3775 section = abfd->sections;
3776 /* Now for each loadable space write out records for its subspaces. */
3777 for (i = 0; i < num_spaces; i++)
3779 asection *subsection;
3782 while (!som_is_space (section))
3783 section = section->next;
3785 /* Now look for all its subspaces. */
3786 for (subsection = abfd->sections;
3788 subsection = subsection->next)
3791 /* Skip any section which does not correspond to a space
3792 or subspace. Or does not have SEC_ALLOC set (and therefore
3793 has no real bits on the disk). */
3794 if (!som_is_subspace (subsection)
3795 || !som_is_container (section, subsection)
3796 || (subsection->flags & SEC_ALLOC) == 0)
3799 /* If this is the first subspace for this space, then save
3800 the index of the subspace in its containing space. Also
3801 set "is_loadable" in the containing space. */
3803 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3805 som_section_data (section)->space_dict->is_loadable = 1;
3806 som_section_data (section)->space_dict->subspace_index
3810 /* Increment the number of subspaces seen and the number of
3811 subspaces contained within the current space. */
3813 som_section_data (section)->space_dict->subspace_quantity++;
3815 /* Mark the index of the current space within the subspace's
3816 dictionary record. */
3817 som_section_data (subsection)->subspace_dict->space_index = i;
3819 /* Dump the current subspace header. */
3820 amt = sizeof (struct subspace_dictionary_record);
3821 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3825 /* Goto the next section. */
3826 section = section->next;
3829 /* Now repeat the process for unloadable subspaces. */
3830 section = abfd->sections;
3831 /* Now for each space write out records for its subspaces. */
3832 for (i = 0; i < num_spaces; i++)
3834 asection *subsection;
3837 while (!som_is_space (section))
3838 section = section->next;
3840 /* Now look for all its subspaces. */
3841 for (subsection = abfd->sections;
3843 subsection = subsection->next)
3846 /* Skip any section which does not correspond to a space or
3847 subspace, or which SEC_ALLOC set (and therefore handled
3848 in the loadable spaces/subspaces code above). */
3850 if (!som_is_subspace (subsection)
3851 || !som_is_container (section, subsection)
3852 || (subsection->flags & SEC_ALLOC) != 0)
3855 /* If this is the first subspace for this space, then save
3856 the index of the subspace in its containing space. Clear
3859 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3861 som_section_data (section)->space_dict->is_loadable = 0;
3862 som_section_data (section)->space_dict->subspace_index
3866 /* Increment the number of subspaces seen and the number of
3867 subspaces contained within the current space. */
3868 som_section_data (section)->space_dict->subspace_quantity++;
3871 /* Mark the index of the current space within the subspace's
3872 dictionary record. */
3873 som_section_data (subsection)->subspace_dict->space_index = i;
3875 /* Dump this subspace header. */
3876 amt = sizeof (struct subspace_dictionary_record);
3877 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3881 /* Goto the next section. */
3882 section = section->next;
3885 /* All the subspace dictiondary records are written, and all the
3886 fields are set up in the space dictionary records.
3888 Seek to the right location and start writing the space
3889 dictionary records. */
3890 location = obj_som_file_hdr (abfd)->space_location;
3891 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3894 section = abfd->sections;
3895 for (i = 0; i < num_spaces; i++)
3898 while (!som_is_space (section))
3899 section = section->next;
3901 /* Dump its header. */
3902 amt = sizeof (struct space_dictionary_record);
3903 if (bfd_bwrite ((PTR) som_section_data (section)->space_dict,
3907 /* Goto the next section. */
3908 section = section->next;
3911 /* Write the compilation unit record if there is one. */
3912 if (obj_som_compilation_unit (abfd))
3914 location = obj_som_file_hdr (abfd)->compiler_location;
3915 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3919 if (bfd_bwrite ((PTR) obj_som_compilation_unit (abfd), amt, abfd) != amt)
3923 /* Setting of the system_id has to happen very late now that copying of
3924 BFD private data happens *after* section contents are set. */
3925 if (abfd->flags & (EXEC_P | DYNAMIC))
3926 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
3927 else if (bfd_get_mach (abfd) == pa20)
3928 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
3929 else if (bfd_get_mach (abfd) == pa11)
3930 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
3932 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
3934 /* Compute the checksum for the file header just before writing
3935 the header to disk. */
3936 obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
3938 /* Only thing left to do is write out the file header. It is always
3939 at location zero. Seek there and write it. */
3940 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3942 amt = sizeof (struct header);
3943 if (bfd_bwrite ((PTR) obj_som_file_hdr (abfd), amt, abfd) != amt)
3946 /* Now write the exec header. */
3947 if (abfd->flags & (EXEC_P | DYNAMIC))
3949 long tmp, som_length;
3950 struct som_exec_auxhdr *exec_header;
3952 exec_header = obj_som_exec_hdr (abfd);
3953 exec_header->exec_entry = bfd_get_start_address (abfd);
3954 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
3956 /* Oh joys. Ram some of the BSS data into the DATA section
3957 to be compatable with how the hp linker makes objects
3958 (saves memory space). */
3959 tmp = exec_header->exec_dsize;
3960 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
3961 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
3962 if (exec_header->exec_bsize < 0)
3963 exec_header->exec_bsize = 0;
3964 exec_header->exec_dsize = tmp;
3966 /* Now perform some sanity checks. The idea is to catch bogons now and
3967 inform the user, instead of silently generating a bogus file. */
3968 som_length = obj_som_file_hdr (abfd)->som_length;
3969 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
3970 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
3972 bfd_set_error (bfd_error_bad_value);
3976 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
3981 if (bfd_bwrite ((PTR) exec_header, amt, abfd) != amt)
3987 /* Compute and return the checksum for a SOM file header. */
3989 static unsigned long
3990 som_compute_checksum (abfd)
3993 unsigned long checksum, count, i;
3994 unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
3997 count = sizeof (struct header) / sizeof (unsigned long);
3998 for (i = 0; i < count; i++)
3999 checksum ^= *(buffer + i);
4005 som_bfd_derive_misc_symbol_info (abfd, sym, info)
4006 bfd *abfd ATTRIBUTE_UNUSED;
4008 struct som_misc_symbol_info *info;
4011 memset (info, 0, sizeof (struct som_misc_symbol_info));
4013 /* The HP SOM linker requires detailed type information about
4014 all symbols (including undefined symbols!). Unfortunately,
4015 the type specified in an import/export statement does not
4016 always match what the linker wants. Severe braindamage. */
4018 /* Section symbols will not have a SOM symbol type assigned to
4019 them yet. Assign all section symbols type ST_DATA. */
4020 if (sym->flags & BSF_SECTION_SYM)
4021 info->symbol_type = ST_DATA;
4024 /* Common symbols must have scope SS_UNSAT and type
4025 ST_STORAGE or the linker will choke. */
4026 if (bfd_is_com_section (sym->section))
4028 info->symbol_scope = SS_UNSAT;
4029 info->symbol_type = ST_STORAGE;
4032 /* It is possible to have a symbol without an associated
4033 type. This happens if the user imported the symbol
4034 without a type and the symbol was never defined
4035 locally. If BSF_FUNCTION is set for this symbol, then
4036 assign it type ST_CODE (the HP linker requires undefined
4037 external functions to have type ST_CODE rather than ST_ENTRY). */
4038 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4039 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4040 && bfd_is_und_section (sym->section)
4041 && sym->flags & BSF_FUNCTION)
4042 info->symbol_type = ST_CODE;
4044 /* Handle function symbols which were defined in this file.
4045 They should have type ST_ENTRY. Also retrieve the argument
4046 relocation bits from the SOM backend information. */
4047 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4048 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4049 && (sym->flags & BSF_FUNCTION))
4050 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4051 && (sym->flags & BSF_FUNCTION)))
4053 info->symbol_type = ST_ENTRY;
4054 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4055 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4058 /* For unknown symbols set the symbol's type based on the symbol's
4059 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4060 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4062 if (sym->section->flags & SEC_CODE)
4063 info->symbol_type = ST_CODE;
4065 info->symbol_type = ST_DATA;
4068 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4069 info->symbol_type = ST_DATA;
4071 /* From now on it's a very simple mapping. */
4072 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4073 info->symbol_type = ST_ABSOLUTE;
4074 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4075 info->symbol_type = ST_CODE;
4076 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4077 info->symbol_type = ST_DATA;
4078 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4079 info->symbol_type = ST_MILLICODE;
4080 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4081 info->symbol_type = ST_PLABEL;
4082 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4083 info->symbol_type = ST_PRI_PROG;
4084 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4085 info->symbol_type = ST_SEC_PROG;
4088 /* Now handle the symbol's scope. Exported data which is not
4089 in the common section has scope SS_UNIVERSAL. Note scope
4090 of common symbols was handled earlier! */
4091 if (bfd_is_und_section (sym->section))
4092 info->symbol_scope = SS_UNSAT;
4093 else if (sym->flags & (BSF_EXPORT | BSF_WEAK)
4094 && ! bfd_is_com_section (sym->section))
4095 info->symbol_scope = SS_UNIVERSAL;
4096 /* Anything else which is not in the common section has scope
4098 else if (! bfd_is_com_section (sym->section))
4099 info->symbol_scope = SS_LOCAL;
4101 /* Now set the symbol_info field. It has no real meaning
4102 for undefined or common symbols, but the HP linker will
4103 choke if it's not set to some "reasonable" value. We
4104 use zero as a reasonable value. */
4105 if (bfd_is_com_section (sym->section)
4106 || bfd_is_und_section (sym->section)
4107 || bfd_is_abs_section (sym->section))
4108 info->symbol_info = 0;
4109 /* For all other symbols, the symbol_info field contains the
4110 subspace index of the space this symbol is contained in. */
4112 info->symbol_info = sym->section->target_index;
4114 /* Set the symbol's value. */
4115 info->symbol_value = sym->value + sym->section->vma;
4117 /* The secondary_def field is for weak symbols. */
4118 if (sym->flags & BSF_WEAK)
4119 info->secondary_def = true;
4121 info->secondary_def = false;
4125 /* Build and write, in one big chunk, the entire symbol table for
4129 som_build_and_write_symbol_table (abfd)
4132 unsigned int num_syms = bfd_get_symcount (abfd);
4133 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4134 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4135 struct symbol_dictionary_record *som_symtab = NULL;
4137 bfd_size_type symtab_size;
4139 /* Compute total symbol table size and allocate a chunk of memory
4140 to hold the symbol table as we build it. */
4141 symtab_size = num_syms;
4142 symtab_size *= sizeof (struct symbol_dictionary_record);
4143 som_symtab = (struct symbol_dictionary_record *) bfd_malloc (symtab_size);
4144 if (som_symtab == NULL && symtab_size != 0)
4146 memset (som_symtab, 0, (size_t) symtab_size);
4148 /* Walk over each symbol. */
4149 for (i = 0; i < num_syms; i++)
4151 struct som_misc_symbol_info info;
4153 /* This is really an index into the symbol strings table.
4154 By the time we get here, the index has already been
4155 computed and stored into the name field in the BFD symbol. */
4156 som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset;
4158 /* Derive SOM information from the BFD symbol. */
4159 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4162 som_symtab[i].symbol_type = info.symbol_type;
4163 som_symtab[i].symbol_scope = info.symbol_scope;
4164 som_symtab[i].arg_reloc = info.arg_reloc;
4165 som_symtab[i].symbol_info = info.symbol_info;
4166 som_symtab[i].xleast = 3;
4167 som_symtab[i].symbol_value = info.symbol_value | info.priv_level;
4168 som_symtab[i].secondary_def = info.secondary_def;
4171 /* Everything is ready, seek to the right location and
4172 scribble out the symbol table. */
4173 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4176 if (bfd_bwrite ((PTR) som_symtab, symtab_size, abfd) != symtab_size)
4179 if (som_symtab != NULL)
4183 if (som_symtab != NULL)
4188 /* Write an object in SOM format. */
4191 som_write_object_contents (abfd)
4194 if (abfd->output_has_begun == false)
4196 /* Set up fixed parts of the file, space, and subspace headers.
4197 Notify the world that output has begun. */
4198 som_prep_headers (abfd);
4199 abfd->output_has_begun = true;
4200 /* Start writing the object file. This include all the string
4201 tables, fixup streams, and other portions of the object file. */
4202 som_begin_writing (abfd);
4205 return (som_finish_writing (abfd));
4208 /* Read and save the string table associated with the given BFD. */
4211 som_slurp_string_table (abfd)
4217 /* Use the saved version if its available. */
4218 if (obj_som_stringtab (abfd) != NULL)
4221 /* I don't think this can currently happen, and I'm not sure it should
4222 really be an error, but it's better than getting unpredictable results
4223 from the host's malloc when passed a size of zero. */
4224 if (obj_som_stringtab_size (abfd) == 0)
4226 bfd_set_error (bfd_error_no_symbols);
4230 /* Allocate and read in the string table. */
4231 amt = obj_som_stringtab_size (abfd);
4232 stringtab = bfd_malloc (amt);
4233 if (stringtab == NULL)
4235 memset (stringtab, 0, obj_som_stringtab_size (abfd));
4237 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4240 if (bfd_bread (stringtab, amt, abfd) != amt)
4243 /* Save our results and return success. */
4244 obj_som_stringtab (abfd) = stringtab;
4248 /* Return the amount of data (in bytes) required to hold the symbol
4249 table for this object. */
4252 som_get_symtab_upper_bound (abfd)
4255 if (!som_slurp_symbol_table (abfd))
4258 return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *));
4261 /* Convert from a SOM subspace index to a BFD section. */
4264 bfd_section_from_som_symbol (abfd, symbol)
4266 struct symbol_dictionary_record *symbol;
4270 /* The meaning of the symbol_info field changes for functions
4271 within executables. So only use the quick symbol_info mapping for
4272 incomplete objects and non-function symbols in executables. */
4273 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4274 || (symbol->symbol_type != ST_ENTRY
4275 && symbol->symbol_type != ST_PRI_PROG
4276 && symbol->symbol_type != ST_SEC_PROG
4277 && symbol->symbol_type != ST_MILLICODE))
4279 unsigned int index = symbol->symbol_info;
4280 for (section = abfd->sections; section != NULL; section = section->next)
4281 if (section->target_index == index && som_is_subspace (section))
4284 /* Could be a symbol from an external library (such as an OMOS
4285 shared library). Don't abort. */
4286 return bfd_abs_section_ptr;
4291 unsigned int value = symbol->symbol_value;
4293 /* For executables we will have to use the symbol's address and
4294 find out what section would contain that address. Yuk. */
4295 for (section = abfd->sections; section; section = section->next)
4297 if (value >= section->vma
4298 && value <= section->vma + section->_cooked_size
4299 && som_is_subspace (section))
4303 /* Could be a symbol from an external library (such as an OMOS
4304 shared library). Don't abort. */
4305 return bfd_abs_section_ptr;
4310 /* Read and save the symbol table associated with the given BFD. */
4313 som_slurp_symbol_table (abfd)
4316 int symbol_count = bfd_get_symcount (abfd);
4317 int symsize = sizeof (struct symbol_dictionary_record);
4319 struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4320 som_symbol_type *sym, *symbase;
4323 /* Return saved value if it exists. */
4324 if (obj_som_symtab (abfd) != NULL)
4325 goto successful_return;
4327 /* Special case. This is *not* an error. */
4328 if (symbol_count == 0)
4329 goto successful_return;
4331 if (!som_slurp_string_table (abfd))
4334 stringtab = obj_som_stringtab (abfd);
4337 amt *= sizeof (som_symbol_type);
4338 symbase = (som_symbol_type *) bfd_malloc (amt);
4339 if (symbase == NULL)
4341 memset (symbase, 0, symbol_count * sizeof (som_symbol_type));
4343 /* Read in the external SOM representation. */
4346 buf = bfd_malloc (amt);
4347 if (buf == NULL && amt != 0)
4349 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4351 if (bfd_bread (buf, amt, abfd) != amt)
4354 /* Iterate over all the symbols and internalize them. */
4355 endbufp = buf + symbol_count;
4356 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4359 /* I don't think we care about these. */
4360 if (bufp->symbol_type == ST_SYM_EXT
4361 || bufp->symbol_type == ST_ARG_EXT)
4364 /* Set some private data we care about. */
4365 if (bufp->symbol_type == ST_NULL)
4366 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4367 else if (bufp->symbol_type == ST_ABSOLUTE)
4368 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4369 else if (bufp->symbol_type == ST_DATA)
4370 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4371 else if (bufp->symbol_type == ST_CODE)
4372 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4373 else if (bufp->symbol_type == ST_PRI_PROG)
4374 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4375 else if (bufp->symbol_type == ST_SEC_PROG)
4376 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4377 else if (bufp->symbol_type == ST_ENTRY)
4378 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4379 else if (bufp->symbol_type == ST_MILLICODE)
4380 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4381 else if (bufp->symbol_type == ST_PLABEL)
4382 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4384 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4385 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc;
4387 /* Some reasonable defaults. */
4388 sym->symbol.the_bfd = abfd;
4389 sym->symbol.name = bufp->name.n_strx + stringtab;
4390 sym->symbol.value = bufp->symbol_value;
4391 sym->symbol.section = 0;
4392 sym->symbol.flags = 0;
4394 switch (bufp->symbol_type)
4398 sym->symbol.flags |= BSF_FUNCTION;
4399 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4400 sym->symbol.value & 0x3;
4401 sym->symbol.value &= ~0x3;
4408 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4409 sym->symbol.value & 0x3;
4410 sym->symbol.value &= ~0x3;
4411 /* If the symbol's scope is SS_UNSAT, then these are
4412 undefined function symbols. */
4413 if (bufp->symbol_scope == SS_UNSAT)
4414 sym->symbol.flags |= BSF_FUNCTION;
4420 /* Handle scoping and section information. */
4421 switch (bufp->symbol_scope)
4423 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4424 so the section associated with this symbol can't be known. */
4426 if (bufp->symbol_type != ST_STORAGE)
4427 sym->symbol.section = bfd_und_section_ptr;
4429 sym->symbol.section = bfd_com_section_ptr;
4430 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4434 if (bufp->symbol_type != ST_STORAGE)
4435 sym->symbol.section = bfd_und_section_ptr;
4437 sym->symbol.section = bfd_com_section_ptr;
4441 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4442 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4443 sym->symbol.value -= sym->symbol.section->vma;
4447 /* SS_GLOBAL and SS_LOCAL are two names for the same thing.
4448 Sound dumb? It is. */
4452 sym->symbol.flags |= BSF_LOCAL;
4453 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4454 sym->symbol.value -= sym->symbol.section->vma;
4458 /* Check for a weak symbol. */
4459 if (bufp->secondary_def)
4460 sym->symbol.flags |= BSF_WEAK;
4462 /* Mark section symbols and symbols used by the debugger.
4463 Note $START$ is a magic code symbol, NOT a section symbol. */
4464 if (sym->symbol.name[0] == '$'
4465 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4466 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4467 sym->symbol.flags |= BSF_SECTION_SYM;
4468 else if (!strncmp (sym->symbol.name, "L$0\002", 4))
4470 sym->symbol.flags |= BSF_SECTION_SYM;
4471 sym->symbol.name = sym->symbol.section->name;
4473 else if (!strncmp (sym->symbol.name, "L$0\001", 4))
4474 sym->symbol.flags |= BSF_DEBUGGING;
4476 /* Note increment at bottom of loop, since we skip some symbols
4477 we can not include it as part of the for statement. */
4481 /* We modify the symbol count to record the number of BFD symbols we
4483 bfd_get_symcount (abfd) = sym - symbase;
4485 /* Save our results and return success. */
4486 obj_som_symtab (abfd) = symbase;
4498 /* Canonicalize a SOM symbol table. Return the number of entries
4499 in the symbol table. */
4502 som_get_symtab (abfd, location)
4507 som_symbol_type *symbase;
4509 if (!som_slurp_symbol_table (abfd))
4512 i = bfd_get_symcount (abfd);
4513 symbase = obj_som_symtab (abfd);
4515 for (; i > 0; i--, location++, symbase++)
4516 *location = &symbase->symbol;
4518 /* Final null pointer. */
4520 return (bfd_get_symcount (abfd));
4523 /* Make a SOM symbol. There is nothing special to do here. */
4526 som_make_empty_symbol (abfd)
4529 bfd_size_type amt = sizeof (som_symbol_type);
4530 som_symbol_type *new = (som_symbol_type *) bfd_zalloc (abfd, amt);
4533 new->symbol.the_bfd = abfd;
4535 return &new->symbol;
4538 /* Print symbol information. */
4541 som_print_symbol (abfd, afile, symbol, how)
4545 bfd_print_symbol_type how;
4547 FILE *file = (FILE *) afile;
4550 case bfd_print_symbol_name:
4551 fprintf (file, "%s", symbol->name);
4553 case bfd_print_symbol_more:
4554 fprintf (file, "som ");
4555 fprintf_vma (file, symbol->value);
4556 fprintf (file, " %lx", (long) symbol->flags);
4558 case bfd_print_symbol_all:
4560 const char *section_name;
4561 section_name = symbol->section ? symbol->section->name : "(*none*)";
4562 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
4563 fprintf (file, " %s\t%s", section_name, symbol->name);
4570 som_bfd_is_local_label_name (abfd, name)
4571 bfd *abfd ATTRIBUTE_UNUSED;
4574 return (name[0] == 'L' && name[1] == '$');
4577 /* Count or process variable-length SOM fixup records.
4579 To avoid code duplication we use this code both to compute the number
4580 of relocations requested by a stream, and to internalize the stream.
4582 When computing the number of relocations requested by a stream the
4583 variables rptr, section, and symbols have no meaning.
4585 Return the number of relocations requested by the fixup stream. When
4588 This needs at least two or three more passes to get it cleaned up. */
4591 som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
4592 unsigned char *fixup;
4594 arelent *internal_relocs;
4599 unsigned int op, varname, deallocate_contents = 0;
4600 unsigned char *end_fixups = &fixup[end];
4601 const struct fixup_format *fp;
4603 unsigned char *save_fixup;
4604 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4606 arelent *rptr = internal_relocs;
4607 unsigned int offset = 0;
4609 #define var(c) variables[(c) - 'A']
4610 #define push(v) (*sp++ = (v))
4611 #define pop() (*--sp)
4612 #define emptystack() (sp == stack)
4614 som_initialize_reloc_queue (reloc_queue);
4615 memset (variables, 0, sizeof (variables));
4616 memset (stack, 0, sizeof (stack));
4619 saved_unwind_bits = 0;
4622 while (fixup < end_fixups)
4625 /* Save pointer to the start of this fixup. We'll use
4626 it later to determine if it is necessary to put this fixup
4630 /* Get the fixup code and its associated format. */
4632 fp = &som_fixup_formats[op];
4634 /* Handle a request for a previous fixup. */
4635 if (*fp->format == 'P')
4637 /* Get pointer to the beginning of the prev fixup, move
4638 the repeated fixup to the head of the queue. */
4639 fixup = reloc_queue[fp->D].reloc;
4640 som_reloc_queue_fix (reloc_queue, fp->D);
4643 /* Get the fixup code and its associated format. */
4645 fp = &som_fixup_formats[op];
4648 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4650 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4651 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4653 rptr->address = offset;
4654 rptr->howto = &som_hppa_howto_table[op];
4656 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4659 /* Set default input length to 0. Get the opcode class index
4663 var ('U') = saved_unwind_bits;
4665 /* Get the opcode format. */
4668 /* Process the format string. Parsing happens in two phases,
4669 parse RHS, then assign to LHS. Repeat until no more
4670 characters in the format string. */
4673 /* The variable this pass is going to compute a value for. */
4676 /* Start processing RHS. Continue until a NULL or '=' is found. */
4681 /* If this is a variable, push it on the stack. */
4685 /* If this is a lower case letter, then it represents
4686 additional data from the fixup stream to be pushed onto
4688 else if (ISLOWER (c))
4690 int bits = (c - 'a') * 8;
4691 for (v = 0; c > 'a'; --c)
4692 v = (v << 8) | *fixup++;
4694 v = sign_extend (v, bits);
4698 /* A decimal constant. Push it on the stack. */
4699 else if (ISDIGIT (c))
4702 while (ISDIGIT (*cp))
4703 v = (v * 10) + (*cp++ - '0');
4707 /* An operator. Pop two two values from the stack and
4708 use them as operands to the given operation. Push
4709 the result of the operation back on the stack. */
4731 while (*cp && *cp != '=');
4733 /* Move over the equal operator. */
4736 /* Pop the RHS off the stack. */
4739 /* Perform the assignment. */
4742 /* Handle side effects. and special 'O' stack cases. */
4745 /* Consume some bytes from the input space. */
4749 /* A symbol to use in the relocation. Make a note
4750 of this if we are not just counting. */
4753 rptr->sym_ptr_ptr = &symbols[c];
4755 /* Argument relocation bits for a function call. */
4759 unsigned int tmp = var ('R');
4762 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
4763 && R_PCREL_CALL + 10 > op)
4764 || (som_hppa_howto_table[op].type == R_ABS_CALL
4765 && R_ABS_CALL + 10 > op))
4767 /* Simple encoding. */
4774 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
4776 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
4778 rptr->addend |= 1 << 8 | 1 << 6;
4780 rptr->addend |= 1 << 8;
4784 unsigned int tmp1, tmp2;
4786 /* First part is easy -- low order two bits are
4787 directly copied, then shifted away. */
4788 rptr->addend = tmp & 0x3;
4791 /* Diving the result by 10 gives us the second
4792 part. If it is 9, then the first two words
4793 are a double precision paramater, else it is
4794 3 * the first arg bits + the 2nd arg bits. */
4798 rptr->addend += (0xe << 6);
4801 /* Get the two pieces. */
4804 /* Put them in the addend. */
4805 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
4808 /* What's left is the third part. It's unpacked
4809 just like the second. */
4811 rptr->addend += (0xe << 2);
4816 rptr->addend += (tmp2 << 4) + (tmp << 2);
4819 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
4822 /* Handle the linker expression stack. */
4827 subop = comp1_opcodes;
4830 subop = comp2_opcodes;
4833 subop = comp3_opcodes;
4838 while (*subop <= (unsigned char) c)
4842 /* The lower 32unwind bits must be persistent. */
4844 saved_unwind_bits = var ('U');
4852 /* If we used a previous fixup, clean up after it. */
4855 fixup = save_fixup + 1;
4859 else if (fixup > save_fixup + 1)
4860 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
4862 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
4864 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
4865 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
4867 /* Done with a single reloction. Loop back to the top. */
4870 if (som_hppa_howto_table[op].type == R_ENTRY)
4871 rptr->addend = var ('T');
4872 else if (som_hppa_howto_table[op].type == R_EXIT)
4873 rptr->addend = var ('U');
4874 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
4875 || som_hppa_howto_table[op].type == R_ABS_CALL)
4877 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
4879 /* Try what was specified in R_DATA_OVERRIDE first
4880 (if anything). Then the hard way using the
4881 section contents. */
4882 rptr->addend = var ('V');
4884 if (rptr->addend == 0 && !section->contents)
4886 /* Got to read the damn contents first. We don't
4887 bother saving the contents (yet). Add it one
4888 day if the need arises. */
4889 section->contents = bfd_malloc (section->_raw_size);
4890 if (section->contents == NULL)
4891 return (unsigned) -1;
4893 deallocate_contents = 1;
4894 bfd_get_section_contents (section->owner,
4898 section->_raw_size);
4900 else if (rptr->addend == 0)
4901 rptr->addend = bfd_get_32 (section->owner,
4903 + offset - var ('L')));
4907 rptr->addend = var ('V');
4911 /* Now that we've handled a "full" relocation, reset
4913 memset (variables, 0, sizeof (variables));
4914 memset (stack, 0, sizeof (stack));
4917 if (deallocate_contents)
4918 free (section->contents);
4928 /* Read in the relocs (aka fixups in SOM terms) for a section.
4930 som_get_reloc_upper_bound calls this routine with JUST_COUNT
4931 set to true to indicate it only needs a count of the number
4932 of actual relocations. */
4935 som_slurp_reloc_table (abfd, section, symbols, just_count)
4941 char *external_relocs;
4942 unsigned int fixup_stream_size;
4943 arelent *internal_relocs;
4944 unsigned int num_relocs;
4947 fixup_stream_size = som_section_data (section)->reloc_size;
4948 /* If there were no relocations, then there is nothing to do. */
4949 if (section->reloc_count == 0)
4952 /* If reloc_count is -1, then the relocation stream has not been
4953 parsed. We must do so now to know how many relocations exist. */
4954 if (section->reloc_count == (unsigned) -1)
4956 amt = fixup_stream_size;
4957 external_relocs = (char *) bfd_malloc (amt);
4958 if (external_relocs == (char *) NULL)
4960 /* Read in the external forms. */
4962 obj_som_reloc_filepos (abfd) + section->rel_filepos,
4966 if (bfd_bread (external_relocs, amt, abfd) != amt)
4969 /* Let callers know how many relocations found.
4970 also save the relocation stream as we will
4972 section->reloc_count = som_set_reloc_info (external_relocs,
4974 NULL, NULL, NULL, true);
4976 som_section_data (section)->reloc_stream = external_relocs;
4979 /* If the caller only wanted a count, then return now. */
4983 num_relocs = section->reloc_count;
4984 external_relocs = som_section_data (section)->reloc_stream;
4985 /* Return saved information about the relocations if it is available. */
4986 if (section->relocation != (arelent *) NULL)
4990 amt *= sizeof (arelent);
4991 internal_relocs = (arelent *) bfd_zalloc (abfd, (amt));
4992 if (internal_relocs == (arelent *) NULL)
4995 /* Process and internalize the relocations. */
4996 som_set_reloc_info (external_relocs, fixup_stream_size,
4997 internal_relocs, section, symbols, false);
4999 /* We're done with the external relocations. Free them. */
5000 free (external_relocs);
5001 som_section_data (section)->reloc_stream = NULL;
5003 /* Save our results and return success. */
5004 section->relocation = internal_relocs;
5008 /* Return the number of bytes required to store the relocation
5009 information associated with the given section. */
5012 som_get_reloc_upper_bound (abfd, asect)
5016 /* If section has relocations, then read in the relocation stream
5017 and parse it to determine how many relocations exist. */
5018 if (asect->flags & SEC_RELOC)
5020 if (! som_slurp_reloc_table (abfd, asect, NULL, true))
5022 return (asect->reloc_count + 1) * sizeof (arelent *);
5024 /* There are no relocations. */
5028 /* Convert relocations from SOM (external) form into BFD internal
5029 form. Return the number of relocations. */
5032 som_canonicalize_reloc (abfd, section, relptr, symbols)
5041 if (som_slurp_reloc_table (abfd, section, symbols, false) == false)
5044 count = section->reloc_count;
5045 tblptr = section->relocation;
5048 *relptr++ = tblptr++;
5050 *relptr = (arelent *) NULL;
5051 return section->reloc_count;
5054 extern const bfd_target som_vec;
5056 /* A hook to set up object file dependent section information. */
5059 som_new_section_hook (abfd, newsect)
5063 bfd_size_type amt = sizeof (struct som_section_data_struct);
5064 newsect->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
5065 if (!newsect->used_by_bfd)
5067 newsect->alignment_power = 3;
5069 /* We allow more than three sections internally. */
5073 /* Copy any private info we understand from the input symbol
5074 to the output symbol. */
5077 som_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol)
5083 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5084 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5086 /* One day we may try to grok other private data. */
5087 if (ibfd->xvec->flavour != bfd_target_som_flavour
5088 || obfd->xvec->flavour != bfd_target_som_flavour)
5091 /* The only private information we need to copy is the argument relocation
5093 output_symbol->tc_data.ap.hppa_arg_reloc =
5094 input_symbol->tc_data.ap.hppa_arg_reloc;
5099 /* Copy any private info we understand from the input section
5100 to the output section. */
5103 som_bfd_copy_private_section_data (ibfd, isection, obfd, osection)
5111 /* One day we may try to grok other private data. */
5112 if (ibfd->xvec->flavour != bfd_target_som_flavour
5113 || obfd->xvec->flavour != bfd_target_som_flavour
5114 || (!som_is_space (isection) && !som_is_subspace (isection)))
5117 amt = sizeof (struct som_copyable_section_data_struct);
5118 som_section_data (osection)->copy_data =
5119 (struct som_copyable_section_data_struct *) bfd_zalloc (obfd, amt);
5120 if (som_section_data (osection)->copy_data == NULL)
5123 memcpy (som_section_data (osection)->copy_data,
5124 som_section_data (isection)->copy_data,
5125 sizeof (struct som_copyable_section_data_struct));
5127 /* Reparent if necessary. */
5128 if (som_section_data (osection)->copy_data->container)
5129 som_section_data (osection)->copy_data->container =
5130 som_section_data (osection)->copy_data->container->output_section;
5135 /* Copy any private info we understand from the input bfd
5136 to the output bfd. */
5139 som_bfd_copy_private_bfd_data (ibfd, obfd)
5142 /* One day we may try to grok other private data. */
5143 if (ibfd->xvec->flavour != bfd_target_som_flavour
5144 || obfd->xvec->flavour != bfd_target_som_flavour)
5147 /* Allocate some memory to hold the data we need. */
5148 obj_som_exec_data (obfd) = (struct som_exec_data *)
5149 bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5150 if (obj_som_exec_data (obfd) == NULL)
5153 /* Now copy the data. */
5154 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5155 sizeof (struct som_exec_data));
5160 /* Set backend info for sections which can not be described
5161 in the BFD data structures. */
5164 bfd_som_set_section_attributes (section, defined, private, sort_key, spnum)
5168 unsigned int sort_key;
5171 /* Allocate memory to hold the magic information. */
5172 if (som_section_data (section)->copy_data == NULL)
5174 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5175 som_section_data (section)->copy_data =
5176 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5178 if (som_section_data (section)->copy_data == NULL)
5181 som_section_data (section)->copy_data->sort_key = sort_key;
5182 som_section_data (section)->copy_data->is_defined = defined;
5183 som_section_data (section)->copy_data->is_private = private;
5184 som_section_data (section)->copy_data->container = section;
5185 som_section_data (section)->copy_data->space_number = spnum;
5189 /* Set backend info for subsections which can not be described
5190 in the BFD data structures. */
5193 bfd_som_set_subsection_attributes (section, container, access,
5196 asection *container;
5198 unsigned int sort_key;
5201 /* Allocate memory to hold the magic information. */
5202 if (som_section_data (section)->copy_data == NULL)
5204 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5205 som_section_data (section)->copy_data =
5206 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5208 if (som_section_data (section)->copy_data == NULL)
5211 som_section_data (section)->copy_data->sort_key = sort_key;
5212 som_section_data (section)->copy_data->access_control_bits = access;
5213 som_section_data (section)->copy_data->quadrant = quadrant;
5214 som_section_data (section)->copy_data->container = container;
5218 /* Set the full SOM symbol type. SOM needs far more symbol information
5219 than any other object file format I'm aware of. It is mandatory
5220 to be able to know if a symbol is an entry point, millicode, data,
5221 code, absolute, storage request, or procedure label. If you get
5222 the symbol type wrong your program will not link. */
5225 bfd_som_set_symbol_type (symbol, type)
5229 som_symbol_data (symbol)->som_type = type;
5232 /* Attach an auxiliary header to the BFD backend so that it may be
5233 written into the object file. */
5236 bfd_som_attach_aux_hdr (abfd, type, string)
5243 if (type == VERSION_AUX_ID)
5245 size_t len = strlen (string);
5249 pad = (4 - (len % 4));
5250 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5251 obj_som_version_hdr (abfd) =
5252 (struct user_string_aux_hdr *) bfd_zalloc (abfd, amt);
5253 if (!obj_som_version_hdr (abfd))
5255 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5256 obj_som_version_hdr (abfd)->header_id.length = len + pad;
5257 obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
5258 obj_som_version_hdr (abfd)->string_length = len;
5259 strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
5261 else if (type == COPYRIGHT_AUX_ID)
5263 int len = strlen (string);
5267 pad = (4 - (len % 4));
5268 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5269 obj_som_copyright_hdr (abfd) =
5270 (struct copyright_aux_hdr *) bfd_zalloc (abfd, amt);
5271 if (!obj_som_copyright_hdr (abfd))
5273 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5274 obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
5275 obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
5276 obj_som_copyright_hdr (abfd)->string_length = len;
5277 strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
5282 /* Attach an compilation unit header to the BFD backend so that it may be
5283 written into the object file. */
5286 bfd_som_attach_compilation_unit (abfd, name, language_name, product_id,
5290 const char *language_name;
5291 const char *product_id;
5292 const char *version_id;
5294 COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
5301 n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5302 if (n->f.n_name == NULL) \
5304 strcpy (n->f.n_name, f); \
5308 STRDUP (language_name);
5309 STRDUP (product_id);
5310 STRDUP (version_id);
5314 obj_som_compilation_unit (abfd) = n;
5320 som_get_section_contents (abfd, section, location, offset, count)
5325 bfd_size_type count;
5327 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5329 if ((bfd_size_type) (offset+count) > section->_raw_size
5330 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5331 || bfd_bread (location, count, abfd) != count)
5332 return (false); /* on error */
5337 som_set_section_contents (abfd, section, location, offset, count)
5342 bfd_size_type count;
5344 if (abfd->output_has_begun == false)
5346 /* Set up fixed parts of the file, space, and subspace headers.
5347 Notify the world that output has begun. */
5348 som_prep_headers (abfd);
5349 abfd->output_has_begun = true;
5350 /* Start writing the object file. This include all the string
5351 tables, fixup streams, and other portions of the object file. */
5352 som_begin_writing (abfd);
5355 /* Only write subspaces which have "real" contents (eg. the contents
5356 are not generated at run time by the OS). */
5357 if (!som_is_subspace (section)
5358 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5361 /* Seek to the proper offset within the object file and write the
5363 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5364 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5367 if (bfd_bwrite ((PTR) location, count, abfd) != count)
5373 som_set_arch_mach (abfd, arch, machine)
5375 enum bfd_architecture arch;
5376 unsigned long machine;
5378 /* Allow any architecture to be supported by the SOM backend. */
5379 return bfd_default_set_arch_mach (abfd, arch, machine);
5383 som_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
5384 functionname_ptr, line_ptr)
5385 bfd *abfd ATTRIBUTE_UNUSED;
5386 asection *section ATTRIBUTE_UNUSED;
5387 asymbol **symbols ATTRIBUTE_UNUSED;
5388 bfd_vma offset ATTRIBUTE_UNUSED;
5389 const char **filename_ptr ATTRIBUTE_UNUSED;
5390 const char **functionname_ptr ATTRIBUTE_UNUSED;
5391 unsigned int *line_ptr ATTRIBUTE_UNUSED;
5397 som_sizeof_headers (abfd, reloc)
5398 bfd *abfd ATTRIBUTE_UNUSED;
5399 boolean reloc ATTRIBUTE_UNUSED;
5401 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5407 /* Return the single-character symbol type corresponding to
5408 SOM section S, or '?' for an unknown SOM section. */
5411 som_section_type (s)
5414 const struct section_to_type *t;
5416 for (t = &stt[0]; t->section; t++)
5417 if (!strcmp (s, t->section))
5423 som_decode_symclass (symbol)
5428 if (bfd_is_com_section (symbol->section))
5430 if (bfd_is_und_section (symbol->section))
5432 if (bfd_is_ind_section (symbol->section))
5434 if (symbol->flags & BSF_WEAK)
5436 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5439 if (bfd_is_abs_section (symbol->section)
5440 || (som_symbol_data (symbol) != NULL
5441 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5443 else if (symbol->section)
5444 c = som_section_type (symbol->section->name);
5447 if (symbol->flags & BSF_GLOBAL)
5452 /* Return information about SOM symbol SYMBOL in RET. */
5455 som_get_symbol_info (ignore_abfd, symbol, ret)
5456 bfd *ignore_abfd ATTRIBUTE_UNUSED;
5460 ret->type = som_decode_symclass (symbol);
5461 if (ret->type != 'U')
5462 ret->value = symbol->value + symbol->section->vma;
5465 ret->name = symbol->name;
5468 /* Count the number of symbols in the archive symbol table. Necessary
5469 so that we can allocate space for all the carsyms at once. */
5472 som_bfd_count_ar_symbols (abfd, lst_header, count)
5474 struct lst_header *lst_header;
5478 unsigned int *hash_table = NULL;
5480 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5482 amt = lst_header->hash_size;
5483 amt *= sizeof (unsigned int);
5484 hash_table = (unsigned int *) bfd_malloc (amt);
5485 if (hash_table == NULL && lst_header->hash_size != 0)
5488 /* Don't forget to initialize the counter! */
5491 /* Read in the hash table. The has table is an array of 32bit file offsets
5492 which point to the hash chains. */
5493 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5496 /* Walk each chain counting the number of symbols found on that particular
5498 for (i = 0; i < lst_header->hash_size; i++)
5500 struct lst_symbol_record lst_symbol;
5502 /* An empty chain has zero as it's file offset. */
5503 if (hash_table[i] == 0)
5506 /* Seek to the first symbol in this hash chain. */
5507 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5510 /* Read in this symbol and update the counter. */
5511 amt = sizeof (lst_symbol);
5512 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5517 /* Now iterate through the rest of the symbols on this chain. */
5518 while (lst_symbol.next_entry)
5521 /* Seek to the next symbol. */
5522 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5526 /* Read the symbol in and update the counter. */
5527 amt = sizeof (lst_symbol);
5528 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5534 if (hash_table != NULL)
5539 if (hash_table != NULL)
5544 /* Fill in the canonical archive symbols (SYMS) from the archive described
5545 by ABFD and LST_HEADER. */
5548 som_bfd_fill_in_ar_symbols (abfd, lst_header, syms)
5550 struct lst_header *lst_header;
5553 unsigned int i, len;
5554 carsym *set = syms[0];
5555 unsigned int *hash_table = NULL;
5556 struct som_entry *som_dict = NULL;
5558 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5560 amt = lst_header->hash_size;
5561 amt *= sizeof (unsigned int);
5562 hash_table = (unsigned int *) bfd_malloc (amt);
5563 if (hash_table == NULL && lst_header->hash_size != 0)
5566 /* Read in the hash table. The has table is an array of 32bit file offsets
5567 which point to the hash chains. */
5568 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5571 /* Seek to and read in the SOM dictionary. We will need this to fill
5572 in the carsym's filepos field. */
5573 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5576 amt = lst_header->module_count;
5577 amt *= sizeof (struct som_entry);
5578 som_dict = (struct som_entry *) bfd_malloc (amt);
5579 if (som_dict == NULL && lst_header->module_count != 0)
5582 if (bfd_bread ((PTR) som_dict, amt, abfd) != amt)
5585 /* Walk each chain filling in the carsyms as we go along. */
5586 for (i = 0; i < lst_header->hash_size; i++)
5588 struct lst_symbol_record lst_symbol;
5590 /* An empty chain has zero as it's file offset. */
5591 if (hash_table[i] == 0)
5594 /* Seek to and read the first symbol on the chain. */
5595 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5598 amt = sizeof (lst_symbol);
5599 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5602 /* Get the name of the symbol, first get the length which is stored
5603 as a 32bit integer just before the symbol.
5605 One might ask why we don't just read in the entire string table
5606 and index into it. Well, according to the SOM ABI the string
5607 index can point *anywhere* in the archive to save space, so just
5608 using the string table would not be safe. */
5609 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5610 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5613 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5616 /* Allocate space for the name and null terminate it too. */
5617 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5620 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5625 /* Fill in the file offset. Note that the "location" field points
5626 to the SOM itself, not the ar_hdr in front of it. */
5627 set->file_offset = som_dict[lst_symbol.som_index].location
5628 - sizeof (struct ar_hdr);
5630 /* Go to the next symbol. */
5633 /* Iterate through the rest of the chain. */
5634 while (lst_symbol.next_entry)
5636 /* Seek to the next symbol and read it in. */
5637 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5641 amt = sizeof (lst_symbol);
5642 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5645 /* Seek to the name length & string and read them in. */
5646 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5647 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5650 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5653 /* Allocate space for the name and null terminate it too. */
5654 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5658 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5662 /* Fill in the file offset. Note that the "location" field points
5663 to the SOM itself, not the ar_hdr in front of it. */
5664 set->file_offset = som_dict[lst_symbol.som_index].location
5665 - sizeof (struct ar_hdr);
5667 /* Go on to the next symbol. */
5671 /* If we haven't died by now, then we successfully read the entire
5672 archive symbol table. */
5673 if (hash_table != NULL)
5675 if (som_dict != NULL)
5680 if (hash_table != NULL)
5682 if (som_dict != NULL)
5687 /* Read in the LST from the archive. */
5690 som_slurp_armap (abfd)
5693 struct lst_header lst_header;
5694 struct ar_hdr ar_header;
5695 unsigned int parsed_size;
5696 struct artdata *ardata = bfd_ardata (abfd);
5698 bfd_size_type amt = 16;
5699 int i = bfd_bread ((PTR) nextname, amt, abfd);
5701 /* Special cases. */
5707 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
5710 /* For archives without .o files there is no symbol table. */
5711 if (strncmp (nextname, "/ ", 16))
5713 bfd_has_map (abfd) = false;
5717 /* Read in and sanity check the archive header. */
5718 amt = sizeof (struct ar_hdr);
5719 if (bfd_bread ((PTR) &ar_header, amt, abfd) != amt)
5722 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
5724 bfd_set_error (bfd_error_malformed_archive);
5728 /* How big is the archive symbol table entry? */
5730 parsed_size = strtol (ar_header.ar_size, NULL, 10);
5733 bfd_set_error (bfd_error_malformed_archive);
5737 /* Save off the file offset of the first real user data. */
5738 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
5740 /* Read in the library symbol table. We'll make heavy use of this
5741 in just a minute. */
5742 amt = sizeof (struct lst_header);
5743 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
5747 if (lst_header.a_magic != LIBMAGIC)
5749 bfd_set_error (bfd_error_malformed_archive);
5753 /* Count the number of symbols in the library symbol table. */
5754 if (som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count)
5758 /* Get back to the start of the library symbol table. */
5759 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
5760 + sizeof (struct lst_header)), SEEK_SET) != 0)
5763 /* Initializae the cache and allocate space for the library symbols. */
5765 amt = ardata->symdef_count;
5766 amt *= sizeof (carsym);
5767 ardata->symdefs = (carsym *) bfd_alloc (abfd, amt);
5768 if (!ardata->symdefs)
5771 /* Now fill in the canonical archive symbols. */
5772 if (som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs)
5776 /* Seek back to the "first" file in the archive. Note the "first"
5777 file may be the extended name table. */
5778 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
5781 /* Notify the generic archive code that we have a symbol map. */
5782 bfd_has_map (abfd) = true;
5786 /* Begin preparing to write a SOM library symbol table.
5788 As part of the prep work we need to determine the number of symbols
5789 and the size of the associated string section. */
5792 som_bfd_prep_for_ar_write (abfd, num_syms, stringsize)
5794 unsigned int *num_syms, *stringsize;
5796 bfd *curr_bfd = abfd->archive_head;
5798 /* Some initialization. */
5802 /* Iterate over each BFD within this archive. */
5803 while (curr_bfd != NULL)
5805 unsigned int curr_count, i;
5806 som_symbol_type *sym;
5808 /* Don't bother for non-SOM objects. */
5809 if (curr_bfd->format != bfd_object
5810 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5812 curr_bfd = curr_bfd->next;
5816 /* Make sure the symbol table has been read, then snag a pointer
5817 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5818 but doing so avoids allocating lots of extra memory. */
5819 if (som_slurp_symbol_table (curr_bfd) == false)
5822 sym = obj_som_symtab (curr_bfd);
5823 curr_count = bfd_get_symcount (curr_bfd);
5825 /* Examine each symbol to determine if it belongs in the
5826 library symbol table. */
5827 for (i = 0; i < curr_count; i++, sym++)
5829 struct som_misc_symbol_info info;
5831 /* Derive SOM information from the BFD symbol. */
5832 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5834 /* Should we include this symbol? */
5835 if (info.symbol_type == ST_NULL
5836 || info.symbol_type == ST_SYM_EXT
5837 || info.symbol_type == ST_ARG_EXT)
5840 /* Only global symbols and unsatisfied commons. */
5841 if (info.symbol_scope != SS_UNIVERSAL
5842 && info.symbol_type != ST_STORAGE)
5845 /* Do no include undefined symbols. */
5846 if (bfd_is_und_section (sym->symbol.section))
5849 /* Bump the various counters, being careful to honor
5850 alignment considerations in the string table. */
5852 *stringsize = *stringsize + strlen (sym->symbol.name) + 5;
5853 while (*stringsize % 4)
5857 curr_bfd = curr_bfd->next;
5862 /* Hash a symbol name based on the hashing algorithm presented in the
5866 som_bfd_ar_symbol_hash (symbol)
5869 unsigned int len = strlen (symbol->name);
5871 /* Names with length 1 are special. */
5873 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
5875 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
5876 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
5879 /* Do the bulk of the work required to write the SOM library
5883 som_bfd_ar_write_symbol_stuff (abfd, nsyms, string_size, lst, elength)
5885 unsigned int nsyms, string_size;
5886 struct lst_header lst;
5889 file_ptr lst_filepos;
5890 char *strings = NULL, *p;
5891 struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
5893 unsigned int *hash_table = NULL;
5894 struct som_entry *som_dict = NULL;
5895 struct lst_symbol_record **last_hash_entry = NULL;
5896 unsigned int curr_som_offset, som_index = 0;
5899 amt = lst.hash_size;
5900 amt *= sizeof (unsigned int);
5901 hash_table = (unsigned int *) bfd_malloc (amt);
5902 if (hash_table == NULL && lst.hash_size != 0)
5905 amt = lst.module_count;
5906 amt *= sizeof (struct som_entry);
5907 som_dict = (struct som_entry *) bfd_malloc (amt);
5908 if (som_dict == NULL && lst.module_count != 0)
5911 amt = lst.hash_size;
5912 amt *= sizeof (struct lst_symbol_record *);
5913 last_hash_entry = ((struct lst_symbol_record **) bfd_malloc (amt));
5914 if (last_hash_entry == NULL && lst.hash_size != 0)
5917 /* Lots of fields are file positions relative to the start
5918 of the lst record. So save its location. */
5919 lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5921 /* Some initialization. */
5922 memset (hash_table, 0, 4 * lst.hash_size);
5923 memset (som_dict, 0, lst.module_count * sizeof (struct som_entry));
5924 memset (last_hash_entry, 0,
5925 lst.hash_size * sizeof (struct lst_symbol_record *));
5927 /* Symbols have som_index fields, so we have to keep track of the
5928 index of each SOM in the archive.
5930 The SOM dictionary has (among other things) the absolute file
5931 position for the SOM which a particular dictionary entry
5932 describes. We have to compute that information as we iterate
5933 through the SOMs/symbols. */
5936 /* We add in the size of the archive header twice as the location
5937 in the SOM dictionary is the actual offset of the SOM, not the
5938 archive header before the SOM. */
5939 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end;
5941 /* Make room for the archive header and the contents of the
5942 extended string table. Note that elength includes the size
5943 of the archive header for the extended name table! */
5945 curr_som_offset += elength;
5947 /* Make sure we're properly aligned. */
5948 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
5950 /* FIXME should be done with buffers just like everything else... */
5952 amt *= sizeof (struct lst_symbol_record);
5953 lst_syms = bfd_malloc (amt);
5954 if (lst_syms == NULL && nsyms != 0)
5956 strings = bfd_malloc ((bfd_size_type) string_size);
5957 if (strings == NULL && string_size != 0)
5961 curr_lst_sym = lst_syms;
5963 curr_bfd = abfd->archive_head;
5964 while (curr_bfd != NULL)
5966 unsigned int curr_count, i;
5967 som_symbol_type *sym;
5969 /* Don't bother for non-SOM objects. */
5970 if (curr_bfd->format != bfd_object
5971 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5973 curr_bfd = curr_bfd->next;
5977 /* Make sure the symbol table has been read, then snag a pointer
5978 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5979 but doing so avoids allocating lots of extra memory. */
5980 if (som_slurp_symbol_table (curr_bfd) == false)
5983 sym = obj_som_symtab (curr_bfd);
5984 curr_count = bfd_get_symcount (curr_bfd);
5986 for (i = 0; i < curr_count; i++, sym++)
5988 struct som_misc_symbol_info info;
5990 /* Derive SOM information from the BFD symbol. */
5991 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5993 /* Should we include this symbol? */
5994 if (info.symbol_type == ST_NULL
5995 || info.symbol_type == ST_SYM_EXT
5996 || info.symbol_type == ST_ARG_EXT)
5999 /* Only global symbols and unsatisfied commons. */
6000 if (info.symbol_scope != SS_UNIVERSAL
6001 && info.symbol_type != ST_STORAGE)
6004 /* Do no include undefined symbols. */
6005 if (bfd_is_und_section (sym->symbol.section))
6008 /* If this is the first symbol from this SOM, then update
6009 the SOM dictionary too. */
6010 if (som_dict[som_index].location == 0)
6012 som_dict[som_index].location = curr_som_offset;
6013 som_dict[som_index].length = arelt_size (curr_bfd);
6016 /* Fill in the lst symbol record. */
6017 curr_lst_sym->hidden = 0;
6018 curr_lst_sym->secondary_def = info.secondary_def;
6019 curr_lst_sym->symbol_type = info.symbol_type;
6020 curr_lst_sym->symbol_scope = info.symbol_scope;
6021 curr_lst_sym->check_level = 0;
6022 curr_lst_sym->must_qualify = 0;
6023 curr_lst_sym->initially_frozen = 0;
6024 curr_lst_sym->memory_resident = 0;
6025 curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section);
6026 curr_lst_sym->dup_common = 0;
6027 curr_lst_sym->xleast = 3;
6028 curr_lst_sym->arg_reloc = info.arg_reloc;
6029 curr_lst_sym->name.n_strx = p - strings + 4;
6030 curr_lst_sym->qualifier_name.n_strx = 0;
6031 curr_lst_sym->symbol_info = info.symbol_info;
6032 curr_lst_sym->symbol_value = info.symbol_value | info.priv_level;
6033 curr_lst_sym->symbol_descriptor = 0;
6034 curr_lst_sym->reserved = 0;
6035 curr_lst_sym->som_index = som_index;
6036 curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6037 curr_lst_sym->next_entry = 0;
6039 /* Insert into the hash table. */
6040 if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
6042 struct lst_symbol_record *tmp;
6044 /* There is already something at the head of this hash chain,
6045 so tack this symbol onto the end of the chain. */
6046 tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size];
6048 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6050 + lst.module_count * sizeof (struct som_entry)
6051 + sizeof (struct lst_header);
6055 /* First entry in this hash chain. */
6056 hash_table[curr_lst_sym->symbol_key % lst.hash_size]
6057 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6059 + lst.module_count * sizeof (struct som_entry)
6060 + sizeof (struct lst_header);
6063 /* Keep track of the last symbol we added to this chain so we can
6064 easily update its next_entry pointer. */
6065 last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]
6068 /* Update the string table. */
6069 bfd_put_32 (abfd, strlen (sym->symbol.name), p);
6071 strcpy (p, sym->symbol.name);
6072 p += strlen (sym->symbol.name) + 1;
6075 bfd_put_8 (abfd, 0, p);
6079 /* Head to the next symbol. */
6083 /* Keep track of where each SOM will finally reside; then look
6085 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6087 /* A particular object in the archive may have an odd length; the
6088 linker requires objects begin on an even boundary. So round
6089 up the current offset as necessary. */
6090 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6091 curr_bfd = curr_bfd->next;
6095 /* Now scribble out the hash table. */
6096 amt = lst.hash_size * 4;
6097 if (bfd_bwrite ((PTR) hash_table, amt, abfd) != amt)
6100 /* Then the SOM dictionary. */
6101 amt = lst.module_count * sizeof (struct som_entry);
6102 if (bfd_bwrite ((PTR) som_dict, amt, abfd) != amt)
6105 /* The library symbols. */
6106 amt = nsyms * sizeof (struct lst_symbol_record);
6107 if (bfd_bwrite ((PTR) lst_syms, amt, abfd) != amt)
6110 /* And finally the strings. */
6112 if (bfd_bwrite ((PTR) strings, amt, abfd) != amt)
6115 if (hash_table != NULL)
6117 if (som_dict != NULL)
6119 if (last_hash_entry != NULL)
6120 free (last_hash_entry);
6121 if (lst_syms != NULL)
6123 if (strings != NULL)
6128 if (hash_table != NULL)
6130 if (som_dict != NULL)
6132 if (last_hash_entry != NULL)
6133 free (last_hash_entry);
6134 if (lst_syms != NULL)
6136 if (strings != NULL)
6142 /* Write out the LST for the archive.
6144 You'll never believe this is really how armaps are handled in SOM... */
6147 som_write_armap (abfd, elength, map, orl_count, stridx)
6149 unsigned int elength;
6150 struct orl *map ATTRIBUTE_UNUSED;
6151 unsigned int orl_count ATTRIBUTE_UNUSED;
6152 int stridx ATTRIBUTE_UNUSED;
6155 struct stat statbuf;
6156 unsigned int i, lst_size, nsyms, stringsize;
6158 struct lst_header lst;
6162 /* We'll use this for the archive's date and mode later. */
6163 if (stat (abfd->filename, &statbuf) != 0)
6165 bfd_set_error (bfd_error_system_call);
6169 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6171 /* Account for the lst header first. */
6172 lst_size = sizeof (struct lst_header);
6174 /* Start building the LST header. */
6175 /* FIXME: Do we need to examine each element to determine the
6176 largest id number? */
6177 lst.system_id = CPU_PA_RISC1_0;
6178 lst.a_magic = LIBMAGIC;
6179 lst.version_id = VERSION_ID;
6180 lst.file_time.secs = 0;
6181 lst.file_time.nanosecs = 0;
6183 lst.hash_loc = lst_size;
6184 lst.hash_size = SOM_LST_HASH_SIZE;
6186 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6187 lst_size += 4 * SOM_LST_HASH_SIZE;
6189 /* We need to count the number of SOMs in this archive. */
6190 curr_bfd = abfd->archive_head;
6191 lst.module_count = 0;
6192 while (curr_bfd != NULL)
6194 /* Only true SOM objects count. */
6195 if (curr_bfd->format == bfd_object
6196 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6198 curr_bfd = curr_bfd->next;
6200 lst.module_limit = lst.module_count;
6201 lst.dir_loc = lst_size;
6202 lst_size += sizeof (struct som_entry) * lst.module_count;
6204 /* We don't support import/export tables, auxiliary headers,
6205 or free lists yet. Make the linker work a little harder
6206 to make our life easier. */
6209 lst.export_count = 0;
6214 /* Count how many symbols we will have on the hash chains and the
6215 size of the associated string table. */
6216 if (som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize) == false)
6219 lst_size += sizeof (struct lst_symbol_record) * nsyms;
6221 /* For the string table. One day we might actually use this info
6222 to avoid small seeks/reads when reading archives. */
6223 lst.string_loc = lst_size;
6224 lst.string_size = stringsize;
6225 lst_size += stringsize;
6227 /* SOM ABI says this must be zero. */
6229 lst.file_end = lst_size;
6231 /* Compute the checksum. Must happen after the entire lst header
6235 for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
6236 lst.checksum ^= *p++;
6238 sprintf (hdr.ar_name, "/ ");
6239 sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
6240 sprintf (hdr.ar_uid, "%ld", (long) getuid ());
6241 sprintf (hdr.ar_gid, "%ld", (long) getgid ());
6242 sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode);
6243 sprintf (hdr.ar_size, "%-10d", (int) lst_size);
6244 hdr.ar_fmag[0] = '`';
6245 hdr.ar_fmag[1] = '\012';
6247 /* Turn any nulls into spaces. */
6248 for (i = 0; i < sizeof (struct ar_hdr); i++)
6249 if (((char *) (&hdr))[i] == '\0')
6250 (((char *) (&hdr))[i]) = ' ';
6252 /* Scribble out the ar header. */
6253 amt = sizeof (struct ar_hdr);
6254 if (bfd_bwrite ((PTR) &hdr, amt, abfd) != amt)
6257 /* Now scribble out the lst header. */
6258 amt = sizeof (struct lst_header);
6259 if (bfd_bwrite ((PTR) &lst, amt, abfd) != amt)
6262 /* Build and write the armap. */
6263 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6270 /* Free all information we have cached for this BFD. We can always
6271 read it again later if we need it. */
6274 som_bfd_free_cached_info (abfd)
6279 if (bfd_get_format (abfd) != bfd_object)
6282 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6283 /* Free the native string and symbol tables. */
6284 FREE (obj_som_symtab (abfd));
6285 FREE (obj_som_stringtab (abfd));
6286 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
6288 /* Free the native relocations. */
6289 o->reloc_count = (unsigned) -1;
6290 FREE (som_section_data (o)->reloc_stream);
6291 /* Free the generic relocations. */
6292 FREE (o->relocation);
6299 /* End of miscellaneous support functions. */
6301 /* Linker support functions. */
6304 som_bfd_link_split_section (abfd, sec)
6305 bfd *abfd ATTRIBUTE_UNUSED;
6308 return (som_is_subspace (sec) && sec->_raw_size > 240000);
6311 #define som_close_and_cleanup som_bfd_free_cached_info
6313 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6314 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6315 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6316 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6317 #define som_truncate_arname bfd_bsd_truncate_arname
6318 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6319 #define som_construct_extended_name_table \
6320 _bfd_archive_coff_construct_extended_name_table
6321 #define som_update_armap_timestamp bfd_true
6322 #define som_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
6324 #define som_get_lineno _bfd_nosymbols_get_lineno
6325 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6326 #define som_read_minisymbols _bfd_generic_read_minisymbols
6327 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6328 #define som_get_section_contents_in_window \
6329 _bfd_generic_get_section_contents_in_window
6331 #define som_bfd_get_relocated_section_contents \
6332 bfd_generic_get_relocated_section_contents
6333 #define som_bfd_relax_section bfd_generic_relax_section
6334 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6335 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6336 #define som_bfd_final_link _bfd_generic_final_link
6338 #define som_bfd_gc_sections bfd_generic_gc_sections
6339 #define som_bfd_merge_sections bfd_generic_merge_sections
6341 const bfd_target som_vec = {
6343 bfd_target_som_flavour,
6344 BFD_ENDIAN_BIG, /* target byte order */
6345 BFD_ENDIAN_BIG, /* target headers byte order */
6346 (HAS_RELOC | EXEC_P | /* object flags */
6347 HAS_LINENO | HAS_DEBUG |
6348 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6349 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
6350 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
6352 /* leading_symbol_char: is the first char of a user symbol
6353 predictable, and if so what is it */
6355 '/', /* ar_pad_char */
6356 14, /* ar_max_namelen */
6357 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6358 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6359 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
6360 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6361 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6362 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
6364 som_object_p, /* bfd_check_format */
6365 bfd_generic_archive_p,
6371 _bfd_generic_mkarchive,
6376 som_write_object_contents,
6377 _bfd_write_archive_contents,
6382 BFD_JUMP_TABLE_GENERIC (som),
6383 BFD_JUMP_TABLE_COPY (som),
6384 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6385 BFD_JUMP_TABLE_ARCHIVE (som),
6386 BFD_JUMP_TABLE_SYMBOLS (som),
6387 BFD_JUMP_TABLE_RELOCS (som),
6388 BFD_JUMP_TABLE_WRITE (som),
6389 BFD_JUMP_TABLE_LINK (som),
6390 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6397 #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */