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 = NULL;
1858 /* First, read in space names. */
1860 amt = file_hdr->space_strings_size;
1861 space_strings = bfd_malloc (amt);
1862 if (!space_strings && amt != 0)
1865 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
1868 if (bfd_bread (space_strings, amt, abfd) != amt)
1871 /* Loop over all of the space dictionaries, building up sections. */
1872 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
1874 struct space_dictionary_record space;
1875 struct subspace_dictionary_record subspace, save_subspace;
1877 asection *space_asect;
1880 /* Read the space dictionary element. */
1882 (current_offset + file_hdr->space_location
1883 + space_index * sizeof space),
1887 if (bfd_bread (&space, amt, abfd) != amt)
1890 /* Setup the space name string. */
1891 space.name.n_name = space.name.n_strx + space_strings;
1893 /* Make a section out of it. */
1894 amt = strlen (space.name.n_name) + 1;
1895 newname = bfd_alloc (abfd, amt);
1898 strcpy (newname, space.name.n_name);
1900 space_asect = bfd_make_section_anyway (abfd, newname);
1904 if (space.is_loadable == 0)
1905 space_asect->flags |= SEC_DEBUGGING;
1907 /* Set up all the attributes for the space. */
1908 if (bfd_som_set_section_attributes (space_asect, space.is_defined,
1909 space.is_private, space.sort_key,
1910 space.space_number) == false)
1913 /* If the space has no subspaces, then we're done. */
1914 if (space.subspace_quantity == 0)
1917 /* Now, read in the first subspace for this space. */
1919 (current_offset + file_hdr->subspace_location
1920 + space.subspace_index * sizeof subspace),
1923 amt = sizeof subspace;
1924 if (bfd_bread (&subspace, amt, abfd) != amt)
1926 /* Seek back to the start of the subspaces for loop below. */
1928 (current_offset + file_hdr->subspace_location
1929 + space.subspace_index * sizeof subspace),
1933 /* Setup the start address and file loc from the first subspace
1935 space_asect->vma = subspace.subspace_start;
1936 space_asect->filepos = subspace.file_loc_init_value + current_offset;
1937 space_asect->alignment_power = log2 (subspace.alignment);
1938 if (space_asect->alignment_power == (unsigned) -1)
1941 /* Initialize save_subspace so we can reliably determine if this
1942 loop placed any useful values into it. */
1943 memset (&save_subspace, 0, sizeof (struct subspace_dictionary_record));
1945 /* Loop over the rest of the subspaces, building up more sections. */
1946 for (subspace_index = 0; subspace_index < space.subspace_quantity;
1949 asection *subspace_asect;
1951 /* Read in the next subspace. */
1952 amt = sizeof subspace;
1953 if (bfd_bread (&subspace, amt, abfd) != amt)
1956 /* Setup the subspace name string. */
1957 subspace.name.n_name = subspace.name.n_strx + space_strings;
1959 amt = strlen (subspace.name.n_name) + 1;
1960 newname = bfd_alloc (abfd, amt);
1963 strcpy (newname, subspace.name.n_name);
1965 /* Make a section out of this subspace. */
1966 subspace_asect = bfd_make_section_anyway (abfd, newname);
1967 if (!subspace_asect)
1970 /* Store private information about the section. */
1971 if (bfd_som_set_subsection_attributes (subspace_asect, space_asect,
1972 subspace.access_control_bits,
1974 subspace.quadrant) == false)
1977 /* Keep an easy mapping between subspaces and sections.
1978 Note we do not necessarily read the subspaces in the
1979 same order in which they appear in the object file.
1981 So to make the target index come out correctly, we
1982 store the location of the subspace header in target
1983 index, then sort using the location of the subspace
1984 header as the key. Then we can assign correct
1985 subspace indices. */
1987 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
1989 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
1990 by the access_control_bits in the subspace header. */
1991 switch (subspace.access_control_bits >> 4)
1993 /* Readonly data. */
1995 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2000 subspace_asect->flags |= SEC_DATA;
2003 /* Readonly code and the gateways.
2004 Gateways have other attributes which do not map
2005 into anything BFD knows about. */
2011 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2014 /* dynamic (writable) code. */
2016 subspace_asect->flags |= SEC_CODE;
2020 if (subspace.dup_common || subspace.is_common)
2021 subspace_asect->flags |= SEC_IS_COMMON;
2022 else if (subspace.subspace_length > 0)
2023 subspace_asect->flags |= SEC_HAS_CONTENTS;
2025 if (subspace.is_loadable)
2026 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2028 subspace_asect->flags |= SEC_DEBUGGING;
2030 if (subspace.code_only)
2031 subspace_asect->flags |= SEC_CODE;
2033 /* Both file_loc_init_value and initialization_length will
2034 be zero for a BSS like subspace. */
2035 if (subspace.file_loc_init_value == 0
2036 && subspace.initialization_length == 0)
2037 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2039 /* This subspace has relocations.
2040 The fixup_request_quantity is a byte count for the number of
2041 entries in the relocation stream; it is not the actual number
2042 of relocations in the subspace. */
2043 if (subspace.fixup_request_quantity != 0)
2045 subspace_asect->flags |= SEC_RELOC;
2046 subspace_asect->rel_filepos = subspace.fixup_request_index;
2047 som_section_data (subspace_asect)->reloc_size
2048 = subspace.fixup_request_quantity;
2049 /* We can not determine this yet. When we read in the
2050 relocation table the correct value will be filled in. */
2051 subspace_asect->reloc_count = (unsigned) -1;
2054 /* Update save_subspace if appropriate. */
2055 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2056 save_subspace = subspace;
2058 subspace_asect->vma = subspace.subspace_start;
2059 subspace_asect->_cooked_size = subspace.subspace_length;
2060 subspace_asect->_raw_size = subspace.subspace_length;
2061 subspace_asect->filepos = (subspace.file_loc_init_value
2063 subspace_asect->alignment_power = log2 (subspace.alignment);
2064 if (subspace_asect->alignment_power == (unsigned) -1)
2068 /* This can happen for a .o which defines symbols in otherwise
2070 if (!save_subspace.file_loc_init_value)
2072 space_asect->_cooked_size = 0;
2073 space_asect->_raw_size = 0;
2077 /* Setup the sizes for the space section based upon the info in the
2078 last subspace of the space. */
2079 space_asect->_cooked_size = (save_subspace.subspace_start
2081 + save_subspace.subspace_length);
2082 space_asect->_raw_size = (save_subspace.file_loc_init_value
2083 - space_asect->filepos
2084 + save_subspace.initialization_length);
2087 /* Now that we've read in all the subspace records, we need to assign
2088 a target index to each subspace. */
2089 amt = total_subspaces;
2090 amt *= sizeof (asection *);
2091 subspace_sections = (asection **) bfd_malloc (amt);
2092 if (subspace_sections == NULL)
2095 for (i = 0, section = abfd->sections; section; section = section->next)
2097 if (!som_is_subspace (section))
2100 subspace_sections[i] = section;
2103 qsort (subspace_sections, total_subspaces,
2104 sizeof (asection *), compare_subspaces);
2106 /* subspace_sections is now sorted in the order in which the subspaces
2107 appear in the object file. Assign an index to each one now. */
2108 for (i = 0; i < total_subspaces; i++)
2109 subspace_sections[i]->target_index = i;
2111 if (space_strings != NULL)
2112 free (space_strings);
2114 if (subspace_sections != NULL)
2115 free (subspace_sections);
2120 if (space_strings != NULL)
2121 free (space_strings);
2123 if (subspace_sections != NULL)
2124 free (subspace_sections);
2128 /* Read in a SOM object and make it into a BFD. */
2130 static const bfd_target *
2134 struct header file_hdr;
2135 struct som_exec_auxhdr aux_hdr;
2136 unsigned long current_offset = 0;
2137 struct lst_header lst_header;
2138 struct som_entry som_entry;
2140 #define ENTRY_SIZE sizeof (struct som_entry)
2142 amt = FILE_HDR_SIZE;
2143 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2145 if (bfd_get_error () != bfd_error_system_call)
2146 bfd_set_error (bfd_error_wrong_format);
2150 if (!_PA_RISC_ID (file_hdr.system_id))
2152 bfd_set_error (bfd_error_wrong_format);
2156 switch (file_hdr.a_magic)
2168 #ifdef SHARED_MAGIC_CNX
2169 case SHARED_MAGIC_CNX:
2175 /* Read the lst header and determine where the SOM directory begins. */
2177 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2179 if (bfd_get_error () != bfd_error_system_call)
2180 bfd_set_error (bfd_error_wrong_format);
2185 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
2187 if (bfd_get_error () != bfd_error_system_call)
2188 bfd_set_error (bfd_error_wrong_format);
2192 /* Position to and read the first directory entry. */
2194 if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0)
2196 if (bfd_get_error () != bfd_error_system_call)
2197 bfd_set_error (bfd_error_wrong_format);
2202 if (bfd_bread ((PTR) &som_entry, amt, abfd) != amt)
2204 if (bfd_get_error () != bfd_error_system_call)
2205 bfd_set_error (bfd_error_wrong_format);
2209 /* Now position to the first SOM. */
2211 if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0)
2213 if (bfd_get_error () != bfd_error_system_call)
2214 bfd_set_error (bfd_error_wrong_format);
2218 current_offset = som_entry.location;
2220 /* And finally, re-read the som header. */
2221 amt = FILE_HDR_SIZE;
2222 if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt)
2224 if (bfd_get_error () != bfd_error_system_call)
2225 bfd_set_error (bfd_error_wrong_format);
2233 bfd_set_error (bfd_error_wrong_format);
2237 if (file_hdr.version_id != VERSION_ID
2238 && file_hdr.version_id != NEW_VERSION_ID)
2240 bfd_set_error (bfd_error_wrong_format);
2244 /* If the aux_header_size field in the file header is zero, then this
2245 object is an incomplete executable (a .o file). Do not try to read
2246 a non-existant auxiliary header. */
2247 memset (&aux_hdr, 0, sizeof (struct som_exec_auxhdr));
2248 if (file_hdr.aux_header_size != 0)
2251 if (bfd_bread ((PTR) &aux_hdr, amt, abfd) != amt)
2253 if (bfd_get_error () != bfd_error_system_call)
2254 bfd_set_error (bfd_error_wrong_format);
2259 if (!setup_sections (abfd, &file_hdr, current_offset))
2261 /* setup_sections does not bubble up a bfd error code. */
2262 bfd_set_error (bfd_error_bad_value);
2266 /* This appears to be a valid SOM object. Do some initialization. */
2267 return som_object_setup (abfd, &file_hdr, &aux_hdr, current_offset);
2270 /* Create a SOM object. */
2276 /* Allocate memory to hold backend information. */
2277 abfd->tdata.som_data = (struct som_data_struct *)
2278 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2279 if (abfd->tdata.som_data == NULL)
2284 /* Initialize some information in the file header. This routine makes
2285 not attempt at doing the right thing for a full executable; it
2286 is only meant to handle relocatable objects. */
2289 som_prep_headers (abfd)
2292 struct header *file_hdr;
2294 bfd_size_type amt = sizeof (struct header);
2296 /* Make and attach a file header to the BFD. */
2297 file_hdr = (struct header *) bfd_zalloc (abfd, amt);
2298 if (file_hdr == NULL)
2300 obj_som_file_hdr (abfd) = file_hdr;
2302 if (abfd->flags & (EXEC_P | DYNAMIC))
2305 /* Make and attach an exec header to the BFD. */
2306 amt = sizeof (struct som_exec_auxhdr);
2307 obj_som_exec_hdr (abfd) =
2308 (struct som_exec_auxhdr *) bfd_zalloc (abfd, amt);
2309 if (obj_som_exec_hdr (abfd) == NULL)
2312 if (abfd->flags & D_PAGED)
2313 file_hdr->a_magic = DEMAND_MAGIC;
2314 else if (abfd->flags & WP_TEXT)
2315 file_hdr->a_magic = SHARE_MAGIC;
2317 else if (abfd->flags & DYNAMIC)
2318 file_hdr->a_magic = SHL_MAGIC;
2321 file_hdr->a_magic = EXEC_MAGIC;
2324 file_hdr->a_magic = RELOC_MAGIC;
2326 /* These fields are optional, and embedding timestamps is not always
2327 a wise thing to do, it makes comparing objects during a multi-stage
2328 bootstrap difficult. */
2329 file_hdr->file_time.secs = 0;
2330 file_hdr->file_time.nanosecs = 0;
2332 file_hdr->entry_space = 0;
2333 file_hdr->entry_subspace = 0;
2334 file_hdr->entry_offset = 0;
2335 file_hdr->presumed_dp = 0;
2337 /* Now iterate over the sections translating information from
2338 BFD sections to SOM spaces/subspaces. */
2340 for (section = abfd->sections; section != NULL; section = section->next)
2342 /* Ignore anything which has not been marked as a space or
2344 if (!som_is_space (section) && !som_is_subspace (section))
2347 if (som_is_space (section))
2349 /* Allocate space for the space dictionary. */
2350 amt = sizeof (struct space_dictionary_record);
2351 som_section_data (section)->space_dict =
2352 (struct space_dictionary_record *) bfd_zalloc (abfd, amt);
2353 if (som_section_data (section)->space_dict == NULL)
2355 /* Set space attributes. Note most attributes of SOM spaces
2356 are set based on the subspaces it contains. */
2357 som_section_data (section)->space_dict->loader_fix_index = -1;
2358 som_section_data (section)->space_dict->init_pointer_index = -1;
2360 /* Set more attributes that were stuffed away in private data. */
2361 som_section_data (section)->space_dict->sort_key =
2362 som_section_data (section)->copy_data->sort_key;
2363 som_section_data (section)->space_dict->is_defined =
2364 som_section_data (section)->copy_data->is_defined;
2365 som_section_data (section)->space_dict->is_private =
2366 som_section_data (section)->copy_data->is_private;
2367 som_section_data (section)->space_dict->space_number =
2368 som_section_data (section)->copy_data->space_number;
2372 /* Allocate space for the subspace dictionary. */
2373 amt = sizeof (struct subspace_dictionary_record);
2374 som_section_data (section)->subspace_dict =
2375 (struct subspace_dictionary_record *) bfd_zalloc (abfd, amt);
2376 if (som_section_data (section)->subspace_dict == NULL)
2379 /* Set subspace attributes. Basic stuff is done here, additional
2380 attributes are filled in later as more information becomes
2382 if (section->flags & SEC_IS_COMMON)
2384 som_section_data (section)->subspace_dict->dup_common = 1;
2385 som_section_data (section)->subspace_dict->is_common = 1;
2388 if (section->flags & SEC_ALLOC)
2389 som_section_data (section)->subspace_dict->is_loadable = 1;
2391 if (section->flags & SEC_CODE)
2392 som_section_data (section)->subspace_dict->code_only = 1;
2394 som_section_data (section)->subspace_dict->subspace_start =
2396 som_section_data (section)->subspace_dict->subspace_length =
2397 bfd_section_size (abfd, section);
2398 som_section_data (section)->subspace_dict->initialization_length =
2399 bfd_section_size (abfd, section);
2400 som_section_data (section)->subspace_dict->alignment =
2401 1 << section->alignment_power;
2403 /* Set more attributes that were stuffed away in private data. */
2404 som_section_data (section)->subspace_dict->sort_key =
2405 som_section_data (section)->copy_data->sort_key;
2406 som_section_data (section)->subspace_dict->access_control_bits =
2407 som_section_data (section)->copy_data->access_control_bits;
2408 som_section_data (section)->subspace_dict->quadrant =
2409 som_section_data (section)->copy_data->quadrant;
2415 /* Return true if the given section is a SOM space, false otherwise. */
2418 som_is_space (section)
2421 /* If no copy data is available, then it's neither a space nor a
2423 if (som_section_data (section)->copy_data == NULL)
2426 /* If the containing space isn't the same as the given section,
2427 then this isn't a space. */
2428 if (som_section_data (section)->copy_data->container != section
2429 && (som_section_data (section)->copy_data->container->output_section
2433 /* OK. Must be a space. */
2437 /* Return true if the given section is a SOM subspace, false otherwise. */
2440 som_is_subspace (section)
2443 /* If no copy data is available, then it's neither a space nor a
2445 if (som_section_data (section)->copy_data == NULL)
2448 /* If the containing space is the same as the given section,
2449 then this isn't a subspace. */
2450 if (som_section_data (section)->copy_data->container == section
2451 || (som_section_data (section)->copy_data->container->output_section
2455 /* OK. Must be a subspace. */
2459 /* Return true if the given space containins the given subspace. It
2460 is safe to assume space really is a space, and subspace really
2464 som_is_container (space, subspace)
2465 asection *space, *subspace;
2467 return (som_section_data (subspace)->copy_data->container == space
2468 || (som_section_data (subspace)->copy_data->container->output_section
2472 /* Count and return the number of spaces attached to the given BFD. */
2474 static unsigned long
2475 som_count_spaces (abfd)
2481 for (section = abfd->sections; section != NULL; section = section->next)
2482 count += som_is_space (section);
2487 /* Count the number of subspaces attached to the given BFD. */
2489 static unsigned long
2490 som_count_subspaces (abfd)
2496 for (section = abfd->sections; section != NULL; section = section->next)
2497 count += som_is_subspace (section);
2502 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2504 We desire symbols to be ordered starting with the symbol with the
2505 highest relocation count down to the symbol with the lowest relocation
2506 count. Doing so compacts the relocation stream. */
2509 compare_syms (arg1, arg2)
2514 asymbol **sym1 = (asymbol **) arg1;
2515 asymbol **sym2 = (asymbol **) arg2;
2516 unsigned int count1, count2;
2518 /* Get relocation count for each symbol. Note that the count
2519 is stored in the udata pointer for section symbols! */
2520 if ((*sym1)->flags & BSF_SECTION_SYM)
2521 count1 = (*sym1)->udata.i;
2523 count1 = som_symbol_data (*sym1)->reloc_count;
2525 if ((*sym2)->flags & BSF_SECTION_SYM)
2526 count2 = (*sym2)->udata.i;
2528 count2 = som_symbol_data (*sym2)->reloc_count;
2530 /* Return the appropriate value. */
2531 if (count1 < count2)
2533 else if (count1 > count2)
2538 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2542 compare_subspaces (arg1, arg2)
2547 asection **subspace1 = (asection **) arg1;
2548 asection **subspace2 = (asection **) arg2;
2550 if ((*subspace1)->target_index < (*subspace2)->target_index)
2552 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2558 /* Perform various work in preparation for emitting the fixup stream. */
2561 som_prep_for_fixups (abfd, syms, num_syms)
2564 unsigned long num_syms;
2568 asymbol **sorted_syms;
2571 /* Most SOM relocations involving a symbol have a length which is
2572 dependent on the index of the symbol. So symbols which are
2573 used often in relocations should have a small index. */
2575 /* First initialize the counters for each symbol. */
2576 for (i = 0; i < num_syms; i++)
2578 /* Handle a section symbol; these have no pointers back to the
2579 SOM symbol info. So we just use the udata field to hold the
2580 relocation count. */
2581 if (som_symbol_data (syms[i]) == NULL
2582 || syms[i]->flags & BSF_SECTION_SYM)
2584 syms[i]->flags |= BSF_SECTION_SYM;
2585 syms[i]->udata.i = 0;
2588 som_symbol_data (syms[i])->reloc_count = 0;
2591 /* Now that the counters are initialized, make a weighted count
2592 of how often a given symbol is used in a relocation. */
2593 for (section = abfd->sections; section != NULL; section = section->next)
2597 /* Does this section have any relocations? */
2598 if ((int) section->reloc_count <= 0)
2601 /* Walk through each relocation for this section. */
2602 for (j = 1; j < (int) section->reloc_count; j++)
2604 arelent *reloc = section->orelocation[j];
2607 /* A relocation against a symbol in the *ABS* section really
2608 does not have a symbol. Likewise if the symbol isn't associated
2609 with any section. */
2610 if (reloc->sym_ptr_ptr == NULL
2611 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2614 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2615 and R_CODE_ONE_SYMBOL relocations to come first. These
2616 two relocations have single byte versions if the symbol
2617 index is very small. */
2618 if (reloc->howto->type == R_DP_RELATIVE
2619 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2624 /* Handle section symbols by storing the count in the udata
2625 field. It will not be used and the count is very important
2626 for these symbols. */
2627 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2629 (*reloc->sym_ptr_ptr)->udata.i =
2630 (*reloc->sym_ptr_ptr)->udata.i + scale;
2634 /* A normal symbol. Increment the count. */
2635 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2639 /* Sort a copy of the symbol table, rather than the canonical
2640 output symbol table. */
2642 amt *= sizeof (asymbol *);
2643 sorted_syms = (asymbol **) bfd_zalloc (abfd, amt);
2644 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2645 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2646 obj_som_sorted_syms (abfd) = sorted_syms;
2648 /* Compute the symbol indexes, they will be needed by the relocation
2650 for (i = 0; i < num_syms; i++)
2652 /* A section symbol. Again, there is no pointer to backend symbol
2653 information, so we reuse the udata field again. */
2654 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2655 sorted_syms[i]->udata.i = i;
2657 som_symbol_data (sorted_syms[i])->index = i;
2662 som_write_fixups (abfd, current_offset, total_reloc_sizep)
2664 unsigned long current_offset;
2665 unsigned int *total_reloc_sizep;
2668 /* Chunk of memory that we can use as buffer space, then throw
2670 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2672 unsigned int total_reloc_size = 0;
2673 unsigned int subspace_reloc_size = 0;
2674 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2675 asection *section = abfd->sections;
2678 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2681 /* All the fixups for a particular subspace are emitted in a single
2682 stream. All the subspaces for a particular space are emitted
2685 So, to get all the locations correct one must iterate through all the
2686 spaces, for each space iterate through its subspaces and output a
2688 for (i = 0; i < num_spaces; i++)
2690 asection *subsection;
2693 while (!som_is_space (section))
2694 section = section->next;
2696 /* Now iterate through each of its subspaces. */
2697 for (subsection = abfd->sections;
2699 subsection = subsection->next)
2702 unsigned int current_rounding_mode;
2703 #ifndef NO_PCREL_MODES
2704 int current_call_mode;
2707 /* Find a subspace of this space. */
2708 if (!som_is_subspace (subsection)
2709 || !som_is_container (section, subsection))
2712 /* If this subspace does not have real data, then we are
2714 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2716 som_section_data (subsection)->subspace_dict->fixup_request_index
2721 /* This subspace has some relocations. Put the relocation stream
2722 index into the subspace record. */
2723 som_section_data (subsection)->subspace_dict->fixup_request_index
2726 /* To make life easier start over with a clean slate for
2727 each subspace. Seek to the start of the relocation stream
2728 for this subspace in preparation for writing out its fixup
2730 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2733 /* Buffer space has already been allocated. Just perform some
2734 initialization here. */
2736 subspace_reloc_size = 0;
2738 som_initialize_reloc_queue (reloc_queue);
2739 current_rounding_mode = R_N_MODE;
2740 #ifndef NO_PCREL_MODES
2741 current_call_mode = R_SHORT_PCREL_MODE;
2744 /* Translate each BFD relocation into one or more SOM
2746 for (j = 0; j < subsection->reloc_count; j++)
2748 arelent *bfd_reloc = subsection->orelocation[j];
2752 /* Get the symbol number. Remember it's stored in a
2753 special place for section symbols. */
2754 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2755 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2757 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2759 /* If there is not enough room for the next couple relocations,
2760 then dump the current buffer contents now. Also reinitialize
2761 the relocation queue.
2763 No single BFD relocation could ever translate into more
2764 than 100 bytes of SOM relocations (20bytes is probably the
2765 upper limit, but leave lots of space for growth). */
2766 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2768 amt = p - tmp_space;
2769 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
2773 som_initialize_reloc_queue (reloc_queue);
2776 /* Emit R_NO_RELOCATION fixups to map any bytes which were
2778 skip = bfd_reloc->address - reloc_offset;
2779 p = som_reloc_skip (abfd, skip, p,
2780 &subspace_reloc_size, reloc_queue);
2782 /* Update reloc_offset for the next iteration.
2784 Many relocations do not consume input bytes. They
2785 are markers, or set state necessary to perform some
2786 later relocation. */
2787 switch (bfd_reloc->howto->type)
2807 #ifndef NO_PCREL_MODES
2808 case R_SHORT_PCREL_MODE:
2809 case R_LONG_PCREL_MODE:
2811 reloc_offset = bfd_reloc->address;
2815 reloc_offset = bfd_reloc->address + 4;
2819 /* Now the actual relocation we care about. */
2820 switch (bfd_reloc->howto->type)
2824 p = som_reloc_call (abfd, p, &subspace_reloc_size,
2825 bfd_reloc, sym_num, reloc_queue);
2828 case R_CODE_ONE_SYMBOL:
2830 /* Account for any addend. */
2831 if (bfd_reloc->addend)
2832 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2833 &subspace_reloc_size, reloc_queue);
2837 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
2838 subspace_reloc_size += 1;
2841 else if (sym_num < 0x100)
2843 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
2844 bfd_put_8 (abfd, sym_num, p + 1);
2845 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2848 else if (sym_num < 0x10000000)
2850 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
2851 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2852 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2853 p = try_prev_fixup (abfd, &subspace_reloc_size,
2860 case R_DATA_ONE_SYMBOL:
2864 /* Account for any addend using R_DATA_OVERRIDE. */
2865 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
2866 && bfd_reloc->addend)
2867 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2868 &subspace_reloc_size, reloc_queue);
2870 if (sym_num < 0x100)
2872 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2873 bfd_put_8 (abfd, sym_num, p + 1);
2874 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2877 else if (sym_num < 0x10000000)
2879 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2880 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2881 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2882 p = try_prev_fixup (abfd, &subspace_reloc_size,
2892 arelent *tmp_reloc = NULL;
2893 bfd_put_8 (abfd, R_ENTRY, p);
2895 /* R_ENTRY relocations have 64 bits of associated
2896 data. Unfortunately the addend field of a bfd
2897 relocation is only 32 bits. So, we split up
2898 the 64bit unwind information and store part in
2899 the R_ENTRY relocation, and the rest in the R_EXIT
2901 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
2903 /* Find the next R_EXIT relocation. */
2904 for (tmp = j; tmp < subsection->reloc_count; tmp++)
2906 tmp_reloc = subsection->orelocation[tmp];
2907 if (tmp_reloc->howto->type == R_EXIT)
2911 if (tmp == subsection->reloc_count)
2914 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
2915 p = try_prev_fixup (abfd, &subspace_reloc_size,
2924 /* If this relocation requests the current rounding
2925 mode, then it is redundant. */
2926 if (bfd_reloc->howto->type != current_rounding_mode)
2928 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2929 subspace_reloc_size += 1;
2931 current_rounding_mode = bfd_reloc->howto->type;
2935 #ifndef NO_PCREL_MODES
2936 case R_LONG_PCREL_MODE:
2937 case R_SHORT_PCREL_MODE:
2938 if (bfd_reloc->howto->type != current_call_mode)
2940 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2941 subspace_reloc_size += 1;
2943 current_call_mode = bfd_reloc->howto->type;
2958 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2959 subspace_reloc_size += 1;
2964 /* The end of an exception handling region. The reloc's
2965 addend contains the offset of the exception handling
2967 if (bfd_reloc->addend == 0)
2968 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2969 else if (bfd_reloc->addend < 1024)
2971 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2972 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
2973 p = try_prev_fixup (abfd, &subspace_reloc_size,
2978 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
2979 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
2980 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
2981 p = try_prev_fixup (abfd, &subspace_reloc_size,
2987 /* The only time we generate R_COMP1, R_COMP2 and
2988 R_CODE_EXPR relocs is for the difference of two
2989 symbols. Hence we can cheat here. */
2990 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2991 bfd_put_8 (abfd, 0x44, p + 1);
2992 p = try_prev_fixup (abfd, &subspace_reloc_size,
2997 /* The only time we generate R_COMP1, R_COMP2 and
2998 R_CODE_EXPR relocs is for the difference of two
2999 symbols. Hence we can cheat here. */
3000 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3001 bfd_put_8 (abfd, 0x80, p + 1);
3002 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3003 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3004 p = try_prev_fixup (abfd, &subspace_reloc_size,
3010 /* The only time we generate R_COMP1, R_COMP2 and
3011 R_CODE_EXPR relocs is for the difference of two
3012 symbols. Hence we can cheat here. */
3013 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3014 subspace_reloc_size += 1;
3018 /* Put a "R_RESERVED" relocation in the stream if
3019 we hit something we do not understand. The linker
3020 will complain loudly if this ever happens. */
3022 bfd_put_8 (abfd, 0xff, p);
3023 subspace_reloc_size += 1;
3029 /* Last BFD relocation for a subspace has been processed.
3030 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3031 p = som_reloc_skip (abfd, bfd_section_size (abfd, subsection)
3033 p, &subspace_reloc_size, reloc_queue);
3035 /* Scribble out the relocations. */
3036 amt = p - tmp_space;
3037 if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt)
3041 total_reloc_size += subspace_reloc_size;
3042 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3043 = subspace_reloc_size;
3045 section = section->next;
3047 *total_reloc_sizep = total_reloc_size;
3051 /* Write out the space/subspace string table. */
3054 som_write_space_strings (abfd, current_offset, string_sizep)
3056 unsigned long current_offset;
3057 unsigned int *string_sizep;
3059 /* Chunk of memory that we can use as buffer space, then throw
3061 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3062 unsigned char *tmp_space = alloca (tmp_space_size);
3063 unsigned char *p = tmp_space;
3064 unsigned int strings_size = 0;
3068 /* Seek to the start of the space strings in preparation for writing
3070 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3073 /* Walk through all the spaces and subspaces (order is not important)
3074 building up and writing string table entries for their names. */
3075 for (section = abfd->sections; section != NULL; section = section->next)
3079 /* Only work with space/subspaces; avoid any other sections
3080 which might have been made (.text for example). */
3081 if (!som_is_space (section) && !som_is_subspace (section))
3084 /* Get the length of the space/subspace name. */
3085 length = strlen (section->name);
3087 /* If there is not enough room for the next entry, then dump the
3088 current buffer contents now and maybe allocate a larger
3089 buffer. Each entry will take 4 bytes to hold the string
3090 length + the string itself + null terminator. */
3091 if (p - tmp_space + 5 + length > tmp_space_size)
3093 /* Flush buffer before refilling or reallocating. */
3094 amt = p - tmp_space;
3095 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3098 /* Reallocate if now empty buffer still too small. */
3099 if (5 + length > tmp_space_size)
3101 /* Ensure a minimum growth factor to avoid O(n**2) space
3102 consumption for n strings. The optimal minimum
3103 factor seems to be 2, as no other value can guarantee
3104 wasting less than 50% space. (Note that we cannot
3105 deallocate space allocated by `alloca' without
3106 returning from this function.) The same technique is
3107 used a few more times below when a buffer is
3109 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3110 tmp_space = alloca (tmp_space_size);
3113 /* Reset to beginning of the (possibly new) buffer space. */
3117 /* First element in a string table entry is the length of the
3118 string. Alignment issues are already handled. */
3119 bfd_put_32 (abfd, (bfd_vma) length, p);
3123 /* Record the index in the space/subspace records. */
3124 if (som_is_space (section))
3125 som_section_data (section)->space_dict->name.n_strx = strings_size;
3127 som_section_data (section)->subspace_dict->name.n_strx = strings_size;
3129 /* Next comes the string itself + a null terminator. */
3130 strcpy (p, section->name);
3132 strings_size += length + 1;
3134 /* Always align up to the next word boundary. */
3135 while (strings_size % 4)
3137 bfd_put_8 (abfd, 0, p);
3143 /* Done with the space/subspace strings. Write out any information
3144 contained in a partial block. */
3145 amt = p - tmp_space;
3146 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3148 *string_sizep = strings_size;
3152 /* Write out the symbol string table. */
3155 som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep,
3158 unsigned long current_offset;
3160 unsigned int num_syms;
3161 unsigned int *string_sizep;
3162 COMPUNIT *compilation_unit;
3166 /* Chunk of memory that we can use as buffer space, then throw
3168 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3169 unsigned char *tmp_space = alloca (tmp_space_size);
3170 unsigned char *p = tmp_space;
3172 unsigned int strings_size = 0;
3173 unsigned char *comp[4];
3176 /* This gets a bit gruesome because of the compilation unit. The
3177 strings within the compilation unit are part of the symbol
3178 strings, but don't have symbol_dictionary entries. So, manually
3179 write them and update the compliation unit header. On input, the
3180 compilation unit header contains local copies of the strings.
3182 if (compilation_unit)
3184 comp[0] = compilation_unit->name.n_name;
3185 comp[1] = compilation_unit->language_name.n_name;
3186 comp[2] = compilation_unit->product_id.n_name;
3187 comp[3] = compilation_unit->version_id.n_name;
3190 /* Seek to the start of the space strings in preparation for writing
3192 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3195 if (compilation_unit)
3197 for (i = 0; i < 4; i++)
3199 size_t length = strlen (comp[i]);
3201 /* If there is not enough room for the next entry, then dump
3202 the current buffer contents now and maybe allocate a
3204 if (p - tmp_space + 5 + length > tmp_space_size)
3206 /* Flush buffer before refilling or reallocating. */
3207 amt = p - tmp_space;
3208 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3211 /* Reallocate if now empty buffer still too small. */
3212 if (5 + length > tmp_space_size)
3214 /* See alloca above for discussion of new size. */
3215 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3216 tmp_space = alloca (tmp_space_size);
3219 /* Reset to beginning of the (possibly new) buffer
3224 /* First element in a string table entry is the length of
3225 the string. This must always be 4 byte aligned. This is
3226 also an appropriate time to fill in the string index
3227 field in the symbol table entry. */
3228 bfd_put_32 (abfd, (bfd_vma) length, p);
3232 /* Next comes the string itself + a null terminator. */
3233 strcpy (p, comp[i]);
3238 obj_som_compilation_unit (abfd)->name.n_strx = strings_size;
3241 obj_som_compilation_unit (abfd)->language_name.n_strx =
3245 obj_som_compilation_unit (abfd)->product_id.n_strx =
3249 obj_som_compilation_unit (abfd)->version_id.n_strx =
3255 strings_size += length + 1;
3257 /* Always align up to the next word boundary. */
3258 while (strings_size % 4)
3260 bfd_put_8 (abfd, 0, p);
3267 for (i = 0; i < num_syms; i++)
3269 size_t length = strlen (syms[i]->name);
3271 /* If there is not enough room for the next entry, then dump the
3272 current buffer contents now and maybe allocate a larger buffer. */
3273 if (p - tmp_space + 5 + length > tmp_space_size)
3275 /* Flush buffer before refilling or reallocating. */
3276 amt = p - tmp_space;
3277 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3280 /* Reallocate if now empty buffer still too small. */
3281 if (5 + length > tmp_space_size)
3283 /* See alloca above for discussion of new size. */
3284 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3285 tmp_space = alloca (tmp_space_size);
3288 /* Reset to beginning of the (possibly new) buffer space. */
3292 /* First element in a string table entry is the length of the
3293 string. This must always be 4 byte aligned. This is also
3294 an appropriate time to fill in the string index field in the
3295 symbol table entry. */
3296 bfd_put_32 (abfd, (bfd_vma) length, p);
3300 /* Next comes the string itself + a null terminator. */
3301 strcpy (p, syms[i]->name);
3303 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3305 strings_size += length + 1;
3307 /* Always align up to the next word boundary. */
3308 while (strings_size % 4)
3310 bfd_put_8 (abfd, 0, p);
3316 /* Scribble out any partial block. */
3317 amt = p - tmp_space;
3318 if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt)
3321 *string_sizep = strings_size;
3325 /* Compute variable information to be placed in the SOM headers,
3326 space/subspace dictionaries, relocation streams, etc. Begin
3327 writing parts of the object file. */
3330 som_begin_writing (abfd)
3333 unsigned long current_offset = 0;
3334 int strings_size = 0;
3335 unsigned long num_spaces, num_subspaces, i;
3337 unsigned int total_subspaces = 0;
3338 struct som_exec_auxhdr *exec_header = NULL;
3340 /* The file header will always be first in an object file,
3341 everything else can be in random locations. To keep things
3342 "simple" BFD will lay out the object file in the manner suggested
3343 by the PRO ABI for PA-RISC Systems. */
3345 /* Before any output can really begin offsets for all the major
3346 portions of the object file must be computed. So, starting
3347 with the initial file header compute (and sometimes write)
3348 each portion of the object file. */
3350 /* Make room for the file header, it's contents are not complete
3351 yet, so it can not be written at this time. */
3352 current_offset += sizeof (struct header);
3354 /* Any auxiliary headers will follow the file header. Right now
3355 we support only the copyright and version headers. */
3356 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3357 obj_som_file_hdr (abfd)->aux_header_size = 0;
3358 if (abfd->flags & (EXEC_P | DYNAMIC))
3360 /* Parts of the exec header will be filled in later, so
3361 delay writing the header itself. Fill in the defaults,
3362 and write it later. */
3363 current_offset += sizeof (struct som_exec_auxhdr);
3364 obj_som_file_hdr (abfd)->aux_header_size
3365 += sizeof (struct som_exec_auxhdr);
3366 exec_header = obj_som_exec_hdr (abfd);
3367 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3368 exec_header->som_auxhdr.length = 40;
3370 if (obj_som_version_hdr (abfd) != NULL)
3374 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3377 /* Write the aux_id structure and the string length. */
3378 len = sizeof (struct aux_id) + sizeof (unsigned int);
3379 obj_som_file_hdr (abfd)->aux_header_size += len;
3380 current_offset += len;
3381 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd), len, abfd) != len)
3384 /* Write the version string. */
3385 len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
3386 obj_som_file_hdr (abfd)->aux_header_size += len;
3387 current_offset += len;
3388 if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd)->user_string, len, abfd)
3393 if (obj_som_copyright_hdr (abfd) != NULL)
3397 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3400 /* Write the aux_id structure and the string length. */
3401 len = sizeof (struct aux_id) + sizeof (unsigned int);
3402 obj_som_file_hdr (abfd)->aux_header_size += len;
3403 current_offset += len;
3404 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd), len, abfd) != len)
3407 /* Write the copyright string. */
3408 len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
3409 obj_som_file_hdr (abfd)->aux_header_size += len;
3410 current_offset += len;
3411 if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
3416 /* Next comes the initialization pointers; we have no initialization
3417 pointers, so current offset does not change. */
3418 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3419 obj_som_file_hdr (abfd)->init_array_total = 0;
3421 /* Next are the space records. These are fixed length records.
3423 Count the number of spaces to determine how much room is needed
3424 in the object file for the space records.
3426 The names of the spaces are stored in a separate string table,
3427 and the index for each space into the string table is computed
3428 below. Therefore, it is not possible to write the space headers
3430 num_spaces = som_count_spaces (abfd);
3431 obj_som_file_hdr (abfd)->space_location = current_offset;
3432 obj_som_file_hdr (abfd)->space_total = num_spaces;
3433 current_offset += num_spaces * sizeof (struct space_dictionary_record);
3435 /* Next are the subspace records. These are fixed length records.
3437 Count the number of subspaes to determine how much room is needed
3438 in the object file for the subspace records.
3440 A variety if fields in the subspace record are still unknown at
3441 this time (index into string table, fixup stream location/size, etc). */
3442 num_subspaces = som_count_subspaces (abfd);
3443 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3444 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3445 current_offset += num_subspaces * sizeof (struct subspace_dictionary_record);
3447 /* Next is the string table for the space/subspace names. We will
3448 build and write the string table on the fly. At the same time
3449 we will fill in the space/subspace name index fields. */
3451 /* The string table needs to be aligned on a word boundary. */
3452 if (current_offset % 4)
3453 current_offset += (4 - (current_offset % 4));
3455 /* Mark the offset of the space/subspace string table in the
3457 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3459 /* Scribble out the space strings. */
3460 if (som_write_space_strings (abfd, current_offset, &strings_size) == false)
3463 /* Record total string table size in the header and update the
3465 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3466 current_offset += strings_size;
3468 /* Next is the compilation unit. */
3469 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3470 obj_som_file_hdr (abfd)->compiler_total = 0;
3471 if (obj_som_compilation_unit (abfd))
3473 obj_som_file_hdr (abfd)->compiler_total = 1;
3474 current_offset += COMPUNITSZ;
3477 /* Now compute the file positions for the loadable subspaces, taking
3478 care to make sure everything stays properly aligned. */
3480 section = abfd->sections;
3481 for (i = 0; i < num_spaces; i++)
3483 asection *subsection;
3485 unsigned int subspace_offset = 0;
3488 while (!som_is_space (section))
3489 section = section->next;
3492 /* Now look for all its subspaces. */
3493 for (subsection = abfd->sections;
3495 subsection = subsection->next)
3498 if (!som_is_subspace (subsection)
3499 || !som_is_container (section, subsection)
3500 || (subsection->flags & SEC_ALLOC) == 0)
3503 /* If this is the first subspace in the space, and we are
3504 building an executable, then take care to make sure all
3505 the alignments are correct and update the exec header. */
3507 && (abfd->flags & (EXEC_P | DYNAMIC)))
3509 /* Demand paged executables have each space aligned to a
3510 page boundary. Sharable executables (write-protected
3511 text) have just the private (aka data & bss) space aligned
3512 to a page boundary. Ugh. Not true for HPUX.
3514 The HPUX kernel requires the text to always be page aligned
3515 within the file regardless of the executable's type. */
3516 if (abfd->flags & (D_PAGED | DYNAMIC)
3517 || (subsection->flags & SEC_CODE)
3518 || ((abfd->flags & WP_TEXT)
3519 && (subsection->flags & SEC_DATA)))
3520 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3522 /* Update the exec header. */
3523 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3525 exec_header->exec_tmem = section->vma;
3526 exec_header->exec_tfile = current_offset;
3528 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3530 exec_header->exec_dmem = section->vma;
3531 exec_header->exec_dfile = current_offset;
3534 /* Keep track of exactly where we are within a particular
3535 space. This is necessary as the braindamaged HPUX
3536 loader will create holes between subspaces *and*
3537 subspace alignments are *NOT* preserved. What a crock. */
3538 subspace_offset = subsection->vma;
3540 /* Only do this for the first subspace within each space. */
3543 else if (abfd->flags & (EXEC_P | DYNAMIC))
3545 /* The braindamaged HPUX loader may have created a hole
3546 between two subspaces. It is *not* sufficient to use
3547 the alignment specifications within the subspaces to
3548 account for these holes -- I've run into at least one
3549 case where the loader left one code subspace unaligned
3550 in a final executable.
3552 To combat this we keep a current offset within each space,
3553 and use the subspace vma fields to detect and preserve
3554 holes. What a crock!
3556 ps. This is not necessary for unloadable space/subspaces. */
3557 current_offset += subsection->vma - subspace_offset;
3558 if (subsection->flags & SEC_CODE)
3559 exec_header->exec_tsize += subsection->vma - subspace_offset;
3561 exec_header->exec_dsize += subsection->vma - subspace_offset;
3562 subspace_offset += subsection->vma - subspace_offset;
3565 subsection->target_index = total_subspaces++;
3566 /* This is real data to be loaded from the file. */
3567 if (subsection->flags & SEC_LOAD)
3569 /* Update the size of the code & data. */
3570 if (abfd->flags & (EXEC_P | DYNAMIC)
3571 && subsection->flags & SEC_CODE)
3572 exec_header->exec_tsize += subsection->_cooked_size;
3573 else if (abfd->flags & (EXEC_P | DYNAMIC)
3574 && subsection->flags & SEC_DATA)
3575 exec_header->exec_dsize += subsection->_cooked_size;
3576 som_section_data (subsection)->subspace_dict->file_loc_init_value
3578 subsection->filepos = current_offset;
3579 current_offset += bfd_section_size (abfd, subsection);
3580 subspace_offset += bfd_section_size (abfd, subsection);
3582 /* Looks like uninitialized data. */
3585 /* Update the size of the bss section. */
3586 if (abfd->flags & (EXEC_P | DYNAMIC))
3587 exec_header->exec_bsize += subsection->_cooked_size;
3589 som_section_data (subsection)->subspace_dict->file_loc_init_value
3591 som_section_data (subsection)->subspace_dict->
3592 initialization_length = 0;
3595 /* Goto the next section. */
3596 section = section->next;
3599 /* Finally compute the file positions for unloadable subspaces.
3600 If building an executable, start the unloadable stuff on its
3603 if (abfd->flags & (EXEC_P | DYNAMIC))
3604 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3606 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3607 section = abfd->sections;
3608 for (i = 0; i < num_spaces; i++)
3610 asection *subsection;
3613 while (!som_is_space (section))
3614 section = section->next;
3616 if (abfd->flags & (EXEC_P | DYNAMIC))
3617 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3619 /* Now look for all its subspaces. */
3620 for (subsection = abfd->sections;
3622 subsection = subsection->next)
3625 if (!som_is_subspace (subsection)
3626 || !som_is_container (section, subsection)
3627 || (subsection->flags & SEC_ALLOC) != 0)
3630 subsection->target_index = total_subspaces++;
3631 /* This is real data to be loaded from the file. */
3632 if ((subsection->flags & SEC_LOAD) == 0)
3634 som_section_data (subsection)->subspace_dict->file_loc_init_value
3636 subsection->filepos = current_offset;
3637 current_offset += bfd_section_size (abfd, subsection);
3639 /* Looks like uninitialized data. */
3642 som_section_data (subsection)->subspace_dict->file_loc_init_value
3644 som_section_data (subsection)->subspace_dict->
3645 initialization_length = bfd_section_size (abfd, subsection);
3648 /* Goto the next section. */
3649 section = section->next;
3652 /* If building an executable, then make sure to seek to and write
3653 one byte at the end of the file to make sure any necessary
3654 zeros are filled in. Ugh. */
3655 if (abfd->flags & (EXEC_P | DYNAMIC))
3656 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3657 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3659 if (bfd_bwrite ((PTR) "", (bfd_size_type) 1, abfd) != 1)
3662 obj_som_file_hdr (abfd)->unloadable_sp_size
3663 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3665 /* Loader fixups are not supported in any way shape or form. */
3666 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3667 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3669 /* Done. Store the total size of the SOM so far. */
3670 obj_som_file_hdr (abfd)->som_length = current_offset;
3675 /* Finally, scribble out the various headers to the disk. */
3678 som_finish_writing (abfd)
3681 int num_spaces = som_count_spaces (abfd);
3682 asymbol **syms = bfd_get_outsymbols (abfd);
3683 int i, num_syms, strings_size;
3684 int subspace_index = 0;
3687 unsigned long current_offset;
3688 unsigned int total_reloc_size;
3691 /* We must set up the version identifier here as objcopy/strip copy
3692 private BFD data too late for us to handle this in som_begin_writing. */
3693 if (obj_som_exec_data (abfd)
3694 && obj_som_exec_data (abfd)->version_id)
3695 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3697 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3699 /* Next is the symbol table. These are fixed length records.
3701 Count the number of symbols to determine how much room is needed
3702 in the object file for the symbol table.
3704 The names of the symbols are stored in a separate string table,
3705 and the index for each symbol name into the string table is computed
3706 below. Therefore, it is not possible to write the symbol table
3709 These used to be output before the subspace contents, but they
3710 were moved here to work around a stupid bug in the hpux linker
3711 (fixed in hpux10). */
3712 current_offset = obj_som_file_hdr (abfd)->som_length;
3714 /* Make sure we're on a word boundary. */
3715 if (current_offset % 4)
3716 current_offset += (4 - (current_offset % 4));
3718 num_syms = bfd_get_symcount (abfd);
3719 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3720 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3721 current_offset += num_syms * sizeof (struct symbol_dictionary_record);
3723 /* Next are the symbol strings.
3724 Align them to a word boundary. */
3725 if (current_offset % 4)
3726 current_offset += (4 - (current_offset % 4));
3727 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3729 /* Scribble out the symbol strings. */
3730 if (som_write_symbol_strings (abfd, current_offset, syms,
3731 num_syms, &strings_size,
3732 obj_som_compilation_unit (abfd))
3736 /* Record total string table size in header and update the
3738 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3739 current_offset += strings_size;
3741 /* Do prep work before handling fixups. */
3742 som_prep_for_fixups (abfd,
3743 bfd_get_outsymbols (abfd),
3744 bfd_get_symcount (abfd));
3746 /* At the end of the file is the fixup stream which starts on a
3748 if (current_offset % 4)
3749 current_offset += (4 - (current_offset % 4));
3750 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
3752 /* Write the fixups and update fields in subspace headers which
3753 relate to the fixup stream. */
3754 if (som_write_fixups (abfd, current_offset, &total_reloc_size) == false)
3757 /* Record the total size of the fixup stream in the file header. */
3758 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
3760 /* Done. Store the total size of the SOM. */
3761 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
3763 /* Now that the symbol table information is complete, build and
3764 write the symbol table. */
3765 if (som_build_and_write_symbol_table (abfd) == false)
3768 /* Subspaces are written first so that we can set up information
3769 about them in their containing spaces as the subspace is written. */
3771 /* Seek to the start of the subspace dictionary records. */
3772 location = obj_som_file_hdr (abfd)->subspace_location;
3773 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3776 section = abfd->sections;
3777 /* Now for each loadable space write out records for its subspaces. */
3778 for (i = 0; i < num_spaces; i++)
3780 asection *subsection;
3783 while (!som_is_space (section))
3784 section = section->next;
3786 /* Now look for all its subspaces. */
3787 for (subsection = abfd->sections;
3789 subsection = subsection->next)
3792 /* Skip any section which does not correspond to a space
3793 or subspace. Or does not have SEC_ALLOC set (and therefore
3794 has no real bits on the disk). */
3795 if (!som_is_subspace (subsection)
3796 || !som_is_container (section, subsection)
3797 || (subsection->flags & SEC_ALLOC) == 0)
3800 /* If this is the first subspace for this space, then save
3801 the index of the subspace in its containing space. Also
3802 set "is_loadable" in the containing space. */
3804 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3806 som_section_data (section)->space_dict->is_loadable = 1;
3807 som_section_data (section)->space_dict->subspace_index
3811 /* Increment the number of subspaces seen and the number of
3812 subspaces contained within the current space. */
3814 som_section_data (section)->space_dict->subspace_quantity++;
3816 /* Mark the index of the current space within the subspace's
3817 dictionary record. */
3818 som_section_data (subsection)->subspace_dict->space_index = i;
3820 /* Dump the current subspace header. */
3821 amt = sizeof (struct subspace_dictionary_record);
3822 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3826 /* Goto the next section. */
3827 section = section->next;
3830 /* Now repeat the process for unloadable subspaces. */
3831 section = abfd->sections;
3832 /* Now for each space write out records for its subspaces. */
3833 for (i = 0; i < num_spaces; i++)
3835 asection *subsection;
3838 while (!som_is_space (section))
3839 section = section->next;
3841 /* Now look for all its subspaces. */
3842 for (subsection = abfd->sections;
3844 subsection = subsection->next)
3847 /* Skip any section which does not correspond to a space or
3848 subspace, or which SEC_ALLOC set (and therefore handled
3849 in the loadable spaces/subspaces code above). */
3851 if (!som_is_subspace (subsection)
3852 || !som_is_container (section, subsection)
3853 || (subsection->flags & SEC_ALLOC) != 0)
3856 /* If this is the first subspace for this space, then save
3857 the index of the subspace in its containing space. Clear
3860 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3862 som_section_data (section)->space_dict->is_loadable = 0;
3863 som_section_data (section)->space_dict->subspace_index
3867 /* Increment the number of subspaces seen and the number of
3868 subspaces contained within the current space. */
3869 som_section_data (section)->space_dict->subspace_quantity++;
3872 /* Mark the index of the current space within the subspace's
3873 dictionary record. */
3874 som_section_data (subsection)->subspace_dict->space_index = i;
3876 /* Dump this subspace header. */
3877 amt = sizeof (struct subspace_dictionary_record);
3878 if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict,
3882 /* Goto the next section. */
3883 section = section->next;
3886 /* All the subspace dictiondary records are written, and all the
3887 fields are set up in the space dictionary records.
3889 Seek to the right location and start writing the space
3890 dictionary records. */
3891 location = obj_som_file_hdr (abfd)->space_location;
3892 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3895 section = abfd->sections;
3896 for (i = 0; i < num_spaces; i++)
3899 while (!som_is_space (section))
3900 section = section->next;
3902 /* Dump its header. */
3903 amt = sizeof (struct space_dictionary_record);
3904 if (bfd_bwrite ((PTR) som_section_data (section)->space_dict,
3908 /* Goto the next section. */
3909 section = section->next;
3912 /* Write the compilation unit record if there is one. */
3913 if (obj_som_compilation_unit (abfd))
3915 location = obj_som_file_hdr (abfd)->compiler_location;
3916 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3920 if (bfd_bwrite ((PTR) obj_som_compilation_unit (abfd), amt, abfd) != amt)
3924 /* Setting of the system_id has to happen very late now that copying of
3925 BFD private data happens *after* section contents are set. */
3926 if (abfd->flags & (EXEC_P | DYNAMIC))
3927 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
3928 else if (bfd_get_mach (abfd) == pa20)
3929 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
3930 else if (bfd_get_mach (abfd) == pa11)
3931 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
3933 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
3935 /* Compute the checksum for the file header just before writing
3936 the header to disk. */
3937 obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
3939 /* Only thing left to do is write out the file header. It is always
3940 at location zero. Seek there and write it. */
3941 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3943 amt = sizeof (struct header);
3944 if (bfd_bwrite ((PTR) obj_som_file_hdr (abfd), amt, abfd) != amt)
3947 /* Now write the exec header. */
3948 if (abfd->flags & (EXEC_P | DYNAMIC))
3950 long tmp, som_length;
3951 struct som_exec_auxhdr *exec_header;
3953 exec_header = obj_som_exec_hdr (abfd);
3954 exec_header->exec_entry = bfd_get_start_address (abfd);
3955 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
3957 /* Oh joys. Ram some of the BSS data into the DATA section
3958 to be compatable with how the hp linker makes objects
3959 (saves memory space). */
3960 tmp = exec_header->exec_dsize;
3961 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
3962 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
3963 if (exec_header->exec_bsize < 0)
3964 exec_header->exec_bsize = 0;
3965 exec_header->exec_dsize = tmp;
3967 /* Now perform some sanity checks. The idea is to catch bogons now and
3968 inform the user, instead of silently generating a bogus file. */
3969 som_length = obj_som_file_hdr (abfd)->som_length;
3970 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
3971 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
3973 bfd_set_error (bfd_error_bad_value);
3977 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
3982 if (bfd_bwrite ((PTR) exec_header, amt, abfd) != amt)
3988 /* Compute and return the checksum for a SOM file header. */
3990 static unsigned long
3991 som_compute_checksum (abfd)
3994 unsigned long checksum, count, i;
3995 unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
3998 count = sizeof (struct header) / sizeof (unsigned long);
3999 for (i = 0; i < count; i++)
4000 checksum ^= *(buffer + i);
4006 som_bfd_derive_misc_symbol_info (abfd, sym, info)
4007 bfd *abfd ATTRIBUTE_UNUSED;
4009 struct som_misc_symbol_info *info;
4012 memset (info, 0, sizeof (struct som_misc_symbol_info));
4014 /* The HP SOM linker requires detailed type information about
4015 all symbols (including undefined symbols!). Unfortunately,
4016 the type specified in an import/export statement does not
4017 always match what the linker wants. Severe braindamage. */
4019 /* Section symbols will not have a SOM symbol type assigned to
4020 them yet. Assign all section symbols type ST_DATA. */
4021 if (sym->flags & BSF_SECTION_SYM)
4022 info->symbol_type = ST_DATA;
4025 /* Common symbols must have scope SS_UNSAT and type
4026 ST_STORAGE or the linker will choke. */
4027 if (bfd_is_com_section (sym->section))
4029 info->symbol_scope = SS_UNSAT;
4030 info->symbol_type = ST_STORAGE;
4033 /* It is possible to have a symbol without an associated
4034 type. This happens if the user imported the symbol
4035 without a type and the symbol was never defined
4036 locally. If BSF_FUNCTION is set for this symbol, then
4037 assign it type ST_CODE (the HP linker requires undefined
4038 external functions to have type ST_CODE rather than ST_ENTRY). */
4039 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4040 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4041 && bfd_is_und_section (sym->section)
4042 && sym->flags & BSF_FUNCTION)
4043 info->symbol_type = ST_CODE;
4045 /* Handle function symbols which were defined in this file.
4046 They should have type ST_ENTRY. Also retrieve the argument
4047 relocation bits from the SOM backend information. */
4048 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4049 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4050 && (sym->flags & BSF_FUNCTION))
4051 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4052 && (sym->flags & BSF_FUNCTION)))
4054 info->symbol_type = ST_ENTRY;
4055 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4056 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4059 /* For unknown symbols set the symbol's type based on the symbol's
4060 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4061 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4063 if (sym->section->flags & SEC_CODE)
4064 info->symbol_type = ST_CODE;
4066 info->symbol_type = ST_DATA;
4069 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4070 info->symbol_type = ST_DATA;
4072 /* From now on it's a very simple mapping. */
4073 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4074 info->symbol_type = ST_ABSOLUTE;
4075 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4076 info->symbol_type = ST_CODE;
4077 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4078 info->symbol_type = ST_DATA;
4079 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4080 info->symbol_type = ST_MILLICODE;
4081 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4082 info->symbol_type = ST_PLABEL;
4083 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4084 info->symbol_type = ST_PRI_PROG;
4085 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4086 info->symbol_type = ST_SEC_PROG;
4089 /* Now handle the symbol's scope. Exported data which is not
4090 in the common section has scope SS_UNIVERSAL. Note scope
4091 of common symbols was handled earlier! */
4092 if (bfd_is_und_section (sym->section))
4093 info->symbol_scope = SS_UNSAT;
4094 else if (sym->flags & (BSF_EXPORT | BSF_WEAK)
4095 && ! bfd_is_com_section (sym->section))
4096 info->symbol_scope = SS_UNIVERSAL;
4097 /* Anything else which is not in the common section has scope
4099 else if (! bfd_is_com_section (sym->section))
4100 info->symbol_scope = SS_LOCAL;
4102 /* Now set the symbol_info field. It has no real meaning
4103 for undefined or common symbols, but the HP linker will
4104 choke if it's not set to some "reasonable" value. We
4105 use zero as a reasonable value. */
4106 if (bfd_is_com_section (sym->section)
4107 || bfd_is_und_section (sym->section)
4108 || bfd_is_abs_section (sym->section))
4109 info->symbol_info = 0;
4110 /* For all other symbols, the symbol_info field contains the
4111 subspace index of the space this symbol is contained in. */
4113 info->symbol_info = sym->section->target_index;
4115 /* Set the symbol's value. */
4116 info->symbol_value = sym->value + sym->section->vma;
4118 /* The secondary_def field is for weak symbols. */
4119 if (sym->flags & BSF_WEAK)
4120 info->secondary_def = true;
4122 info->secondary_def = false;
4126 /* Build and write, in one big chunk, the entire symbol table for
4130 som_build_and_write_symbol_table (abfd)
4133 unsigned int num_syms = bfd_get_symcount (abfd);
4134 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4135 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4136 struct symbol_dictionary_record *som_symtab = NULL;
4138 bfd_size_type symtab_size;
4140 /* Compute total symbol table size and allocate a chunk of memory
4141 to hold the symbol table as we build it. */
4142 symtab_size = num_syms;
4143 symtab_size *= sizeof (struct symbol_dictionary_record);
4144 som_symtab = (struct symbol_dictionary_record *) bfd_malloc (symtab_size);
4145 if (som_symtab == NULL && symtab_size != 0)
4147 memset (som_symtab, 0, (size_t) symtab_size);
4149 /* Walk over each symbol. */
4150 for (i = 0; i < num_syms; i++)
4152 struct som_misc_symbol_info info;
4154 /* This is really an index into the symbol strings table.
4155 By the time we get here, the index has already been
4156 computed and stored into the name field in the BFD symbol. */
4157 som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset;
4159 /* Derive SOM information from the BFD symbol. */
4160 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4163 som_symtab[i].symbol_type = info.symbol_type;
4164 som_symtab[i].symbol_scope = info.symbol_scope;
4165 som_symtab[i].arg_reloc = info.arg_reloc;
4166 som_symtab[i].symbol_info = info.symbol_info;
4167 som_symtab[i].xleast = 3;
4168 som_symtab[i].symbol_value = info.symbol_value | info.priv_level;
4169 som_symtab[i].secondary_def = info.secondary_def;
4172 /* Everything is ready, seek to the right location and
4173 scribble out the symbol table. */
4174 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4177 if (bfd_bwrite ((PTR) som_symtab, symtab_size, abfd) != symtab_size)
4180 if (som_symtab != NULL)
4184 if (som_symtab != NULL)
4189 /* Write an object in SOM format. */
4192 som_write_object_contents (abfd)
4195 if (abfd->output_has_begun == false)
4197 /* Set up fixed parts of the file, space, and subspace headers.
4198 Notify the world that output has begun. */
4199 som_prep_headers (abfd);
4200 abfd->output_has_begun = true;
4201 /* Start writing the object file. This include all the string
4202 tables, fixup streams, and other portions of the object file. */
4203 som_begin_writing (abfd);
4206 return (som_finish_writing (abfd));
4209 /* Read and save the string table associated with the given BFD. */
4212 som_slurp_string_table (abfd)
4218 /* Use the saved version if its available. */
4219 if (obj_som_stringtab (abfd) != NULL)
4222 /* I don't think this can currently happen, and I'm not sure it should
4223 really be an error, but it's better than getting unpredictable results
4224 from the host's malloc when passed a size of zero. */
4225 if (obj_som_stringtab_size (abfd) == 0)
4227 bfd_set_error (bfd_error_no_symbols);
4231 /* Allocate and read in the string table. */
4232 amt = obj_som_stringtab_size (abfd);
4233 stringtab = bfd_malloc (amt);
4234 if (stringtab == NULL)
4236 memset (stringtab, 0, obj_som_stringtab_size (abfd));
4238 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4241 if (bfd_bread (stringtab, amt, abfd) != amt)
4244 /* Save our results and return success. */
4245 obj_som_stringtab (abfd) = stringtab;
4249 /* Return the amount of data (in bytes) required to hold the symbol
4250 table for this object. */
4253 som_get_symtab_upper_bound (abfd)
4256 if (!som_slurp_symbol_table (abfd))
4259 return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *));
4262 /* Convert from a SOM subspace index to a BFD section. */
4265 bfd_section_from_som_symbol (abfd, symbol)
4267 struct symbol_dictionary_record *symbol;
4271 /* The meaning of the symbol_info field changes for functions
4272 within executables. So only use the quick symbol_info mapping for
4273 incomplete objects and non-function symbols in executables. */
4274 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4275 || (symbol->symbol_type != ST_ENTRY
4276 && symbol->symbol_type != ST_PRI_PROG
4277 && symbol->symbol_type != ST_SEC_PROG
4278 && symbol->symbol_type != ST_MILLICODE))
4280 unsigned int index = symbol->symbol_info;
4281 for (section = abfd->sections; section != NULL; section = section->next)
4282 if (section->target_index == index && som_is_subspace (section))
4285 /* Could be a symbol from an external library (such as an OMOS
4286 shared library). Don't abort. */
4287 return bfd_abs_section_ptr;
4292 unsigned int value = symbol->symbol_value;
4294 /* For executables we will have to use the symbol's address and
4295 find out what section would contain that address. Yuk. */
4296 for (section = abfd->sections; section; section = section->next)
4298 if (value >= section->vma
4299 && value <= section->vma + section->_cooked_size
4300 && som_is_subspace (section))
4304 /* Could be a symbol from an external library (such as an OMOS
4305 shared library). Don't abort. */
4306 return bfd_abs_section_ptr;
4311 /* Read and save the symbol table associated with the given BFD. */
4314 som_slurp_symbol_table (abfd)
4317 int symbol_count = bfd_get_symcount (abfd);
4318 int symsize = sizeof (struct symbol_dictionary_record);
4320 struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4321 som_symbol_type *sym, *symbase;
4324 /* Return saved value if it exists. */
4325 if (obj_som_symtab (abfd) != NULL)
4326 goto successful_return;
4328 /* Special case. This is *not* an error. */
4329 if (symbol_count == 0)
4330 goto successful_return;
4332 if (!som_slurp_string_table (abfd))
4335 stringtab = obj_som_stringtab (abfd);
4338 amt *= sizeof (som_symbol_type);
4339 symbase = (som_symbol_type *) bfd_malloc (amt);
4340 if (symbase == NULL)
4342 memset (symbase, 0, symbol_count * sizeof (som_symbol_type));
4344 /* Read in the external SOM representation. */
4347 buf = bfd_malloc (amt);
4348 if (buf == NULL && amt != 0)
4350 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4352 if (bfd_bread (buf, amt, abfd) != amt)
4355 /* Iterate over all the symbols and internalize them. */
4356 endbufp = buf + symbol_count;
4357 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4360 /* I don't think we care about these. */
4361 if (bufp->symbol_type == ST_SYM_EXT
4362 || bufp->symbol_type == ST_ARG_EXT)
4365 /* Set some private data we care about. */
4366 if (bufp->symbol_type == ST_NULL)
4367 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4368 else if (bufp->symbol_type == ST_ABSOLUTE)
4369 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4370 else if (bufp->symbol_type == ST_DATA)
4371 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4372 else if (bufp->symbol_type == ST_CODE)
4373 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4374 else if (bufp->symbol_type == ST_PRI_PROG)
4375 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4376 else if (bufp->symbol_type == ST_SEC_PROG)
4377 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4378 else if (bufp->symbol_type == ST_ENTRY)
4379 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4380 else if (bufp->symbol_type == ST_MILLICODE)
4381 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4382 else if (bufp->symbol_type == ST_PLABEL)
4383 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4385 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4386 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc;
4388 /* Some reasonable defaults. */
4389 sym->symbol.the_bfd = abfd;
4390 sym->symbol.name = bufp->name.n_strx + stringtab;
4391 sym->symbol.value = bufp->symbol_value;
4392 sym->symbol.section = 0;
4393 sym->symbol.flags = 0;
4395 switch (bufp->symbol_type)
4399 sym->symbol.flags |= BSF_FUNCTION;
4400 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4401 sym->symbol.value & 0x3;
4402 sym->symbol.value &= ~0x3;
4409 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4410 sym->symbol.value & 0x3;
4411 sym->symbol.value &= ~0x3;
4412 /* If the symbol's scope is SS_UNSAT, then these are
4413 undefined function symbols. */
4414 if (bufp->symbol_scope == SS_UNSAT)
4415 sym->symbol.flags |= BSF_FUNCTION;
4421 /* Handle scoping and section information. */
4422 switch (bufp->symbol_scope)
4424 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4425 so the section associated with this symbol can't be known. */
4427 if (bufp->symbol_type != ST_STORAGE)
4428 sym->symbol.section = bfd_und_section_ptr;
4430 sym->symbol.section = bfd_com_section_ptr;
4431 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4435 if (bufp->symbol_type != ST_STORAGE)
4436 sym->symbol.section = bfd_und_section_ptr;
4438 sym->symbol.section = bfd_com_section_ptr;
4442 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4443 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4444 sym->symbol.value -= sym->symbol.section->vma;
4448 /* SS_GLOBAL and SS_LOCAL are two names for the same thing.
4449 Sound dumb? It is. */
4453 sym->symbol.flags |= BSF_LOCAL;
4454 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4455 sym->symbol.value -= sym->symbol.section->vma;
4459 /* Check for a weak symbol. */
4460 if (bufp->secondary_def)
4461 sym->symbol.flags |= BSF_WEAK;
4463 /* Mark section symbols and symbols used by the debugger.
4464 Note $START$ is a magic code symbol, NOT a section symbol. */
4465 if (sym->symbol.name[0] == '$'
4466 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4467 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4468 sym->symbol.flags |= BSF_SECTION_SYM;
4469 else if (!strncmp (sym->symbol.name, "L$0\002", 4))
4471 sym->symbol.flags |= BSF_SECTION_SYM;
4472 sym->symbol.name = sym->symbol.section->name;
4474 else if (!strncmp (sym->symbol.name, "L$0\001", 4))
4475 sym->symbol.flags |= BSF_DEBUGGING;
4477 /* Note increment at bottom of loop, since we skip some symbols
4478 we can not include it as part of the for statement. */
4482 /* We modify the symbol count to record the number of BFD symbols we
4484 bfd_get_symcount (abfd) = sym - symbase;
4486 /* Save our results and return success. */
4487 obj_som_symtab (abfd) = symbase;
4499 /* Canonicalize a SOM symbol table. Return the number of entries
4500 in the symbol table. */
4503 som_get_symtab (abfd, location)
4508 som_symbol_type *symbase;
4510 if (!som_slurp_symbol_table (abfd))
4513 i = bfd_get_symcount (abfd);
4514 symbase = obj_som_symtab (abfd);
4516 for (; i > 0; i--, location++, symbase++)
4517 *location = &symbase->symbol;
4519 /* Final null pointer. */
4521 return (bfd_get_symcount (abfd));
4524 /* Make a SOM symbol. There is nothing special to do here. */
4527 som_make_empty_symbol (abfd)
4530 bfd_size_type amt = sizeof (som_symbol_type);
4531 som_symbol_type *new = (som_symbol_type *) bfd_zalloc (abfd, amt);
4534 new->symbol.the_bfd = abfd;
4536 return &new->symbol;
4539 /* Print symbol information. */
4542 som_print_symbol (abfd, afile, symbol, how)
4546 bfd_print_symbol_type how;
4548 FILE *file = (FILE *) afile;
4551 case bfd_print_symbol_name:
4552 fprintf (file, "%s", symbol->name);
4554 case bfd_print_symbol_more:
4555 fprintf (file, "som ");
4556 fprintf_vma (file, symbol->value);
4557 fprintf (file, " %lx", (long) symbol->flags);
4559 case bfd_print_symbol_all:
4561 const char *section_name;
4562 section_name = symbol->section ? symbol->section->name : "(*none*)";
4563 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
4564 fprintf (file, " %s\t%s", section_name, symbol->name);
4571 som_bfd_is_local_label_name (abfd, name)
4572 bfd *abfd ATTRIBUTE_UNUSED;
4575 return (name[0] == 'L' && name[1] == '$');
4578 /* Count or process variable-length SOM fixup records.
4580 To avoid code duplication we use this code both to compute the number
4581 of relocations requested by a stream, and to internalize the stream.
4583 When computing the number of relocations requested by a stream the
4584 variables rptr, section, and symbols have no meaning.
4586 Return the number of relocations requested by the fixup stream. When
4589 This needs at least two or three more passes to get it cleaned up. */
4592 som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
4593 unsigned char *fixup;
4595 arelent *internal_relocs;
4600 unsigned int op, varname, deallocate_contents = 0;
4601 unsigned char *end_fixups = &fixup[end];
4602 const struct fixup_format *fp;
4604 unsigned char *save_fixup;
4605 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4607 arelent *rptr = internal_relocs;
4608 unsigned int offset = 0;
4610 #define var(c) variables[(c) - 'A']
4611 #define push(v) (*sp++ = (v))
4612 #define pop() (*--sp)
4613 #define emptystack() (sp == stack)
4615 som_initialize_reloc_queue (reloc_queue);
4616 memset (variables, 0, sizeof (variables));
4617 memset (stack, 0, sizeof (stack));
4620 saved_unwind_bits = 0;
4623 while (fixup < end_fixups)
4626 /* Save pointer to the start of this fixup. We'll use
4627 it later to determine if it is necessary to put this fixup
4631 /* Get the fixup code and its associated format. */
4633 fp = &som_fixup_formats[op];
4635 /* Handle a request for a previous fixup. */
4636 if (*fp->format == 'P')
4638 /* Get pointer to the beginning of the prev fixup, move
4639 the repeated fixup to the head of the queue. */
4640 fixup = reloc_queue[fp->D].reloc;
4641 som_reloc_queue_fix (reloc_queue, fp->D);
4644 /* Get the fixup code and its associated format. */
4646 fp = &som_fixup_formats[op];
4649 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4651 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4652 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4654 rptr->address = offset;
4655 rptr->howto = &som_hppa_howto_table[op];
4657 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4660 /* Set default input length to 0. Get the opcode class index
4664 var ('U') = saved_unwind_bits;
4666 /* Get the opcode format. */
4669 /* Process the format string. Parsing happens in two phases,
4670 parse RHS, then assign to LHS. Repeat until no more
4671 characters in the format string. */
4674 /* The variable this pass is going to compute a value for. */
4677 /* Start processing RHS. Continue until a NULL or '=' is found. */
4682 /* If this is a variable, push it on the stack. */
4686 /* If this is a lower case letter, then it represents
4687 additional data from the fixup stream to be pushed onto
4689 else if (ISLOWER (c))
4691 int bits = (c - 'a') * 8;
4692 for (v = 0; c > 'a'; --c)
4693 v = (v << 8) | *fixup++;
4695 v = sign_extend (v, bits);
4699 /* A decimal constant. Push it on the stack. */
4700 else if (ISDIGIT (c))
4703 while (ISDIGIT (*cp))
4704 v = (v * 10) + (*cp++ - '0');
4708 /* An operator. Pop two two values from the stack and
4709 use them as operands to the given operation. Push
4710 the result of the operation back on the stack. */
4732 while (*cp && *cp != '=');
4734 /* Move over the equal operator. */
4737 /* Pop the RHS off the stack. */
4740 /* Perform the assignment. */
4743 /* Handle side effects. and special 'O' stack cases. */
4746 /* Consume some bytes from the input space. */
4750 /* A symbol to use in the relocation. Make a note
4751 of this if we are not just counting. */
4754 rptr->sym_ptr_ptr = &symbols[c];
4756 /* Argument relocation bits for a function call. */
4760 unsigned int tmp = var ('R');
4763 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
4764 && R_PCREL_CALL + 10 > op)
4765 || (som_hppa_howto_table[op].type == R_ABS_CALL
4766 && R_ABS_CALL + 10 > op))
4768 /* Simple encoding. */
4775 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
4777 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
4779 rptr->addend |= 1 << 8 | 1 << 6;
4781 rptr->addend |= 1 << 8;
4785 unsigned int tmp1, tmp2;
4787 /* First part is easy -- low order two bits are
4788 directly copied, then shifted away. */
4789 rptr->addend = tmp & 0x3;
4792 /* Diving the result by 10 gives us the second
4793 part. If it is 9, then the first two words
4794 are a double precision paramater, else it is
4795 3 * the first arg bits + the 2nd arg bits. */
4799 rptr->addend += (0xe << 6);
4802 /* Get the two pieces. */
4805 /* Put them in the addend. */
4806 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
4809 /* What's left is the third part. It's unpacked
4810 just like the second. */
4812 rptr->addend += (0xe << 2);
4817 rptr->addend += (tmp2 << 4) + (tmp << 2);
4820 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
4823 /* Handle the linker expression stack. */
4828 subop = comp1_opcodes;
4831 subop = comp2_opcodes;
4834 subop = comp3_opcodes;
4839 while (*subop <= (unsigned char) c)
4843 /* The lower 32unwind bits must be persistent. */
4845 saved_unwind_bits = var ('U');
4853 /* If we used a previous fixup, clean up after it. */
4856 fixup = save_fixup + 1;
4860 else if (fixup > save_fixup + 1)
4861 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
4863 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
4865 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
4866 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
4868 /* Done with a single reloction. Loop back to the top. */
4871 if (som_hppa_howto_table[op].type == R_ENTRY)
4872 rptr->addend = var ('T');
4873 else if (som_hppa_howto_table[op].type == R_EXIT)
4874 rptr->addend = var ('U');
4875 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
4876 || som_hppa_howto_table[op].type == R_ABS_CALL)
4878 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
4880 /* Try what was specified in R_DATA_OVERRIDE first
4881 (if anything). Then the hard way using the
4882 section contents. */
4883 rptr->addend = var ('V');
4885 if (rptr->addend == 0 && !section->contents)
4887 /* Got to read the damn contents first. We don't
4888 bother saving the contents (yet). Add it one
4889 day if the need arises. */
4890 section->contents = bfd_malloc (section->_raw_size);
4891 if (section->contents == NULL)
4892 return (unsigned) -1;
4894 deallocate_contents = 1;
4895 bfd_get_section_contents (section->owner,
4899 section->_raw_size);
4901 else if (rptr->addend == 0)
4902 rptr->addend = bfd_get_32 (section->owner,
4904 + offset - var ('L')));
4908 rptr->addend = var ('V');
4912 /* Now that we've handled a "full" relocation, reset
4914 memset (variables, 0, sizeof (variables));
4915 memset (stack, 0, sizeof (stack));
4918 if (deallocate_contents)
4919 free (section->contents);
4929 /* Read in the relocs (aka fixups in SOM terms) for a section.
4931 som_get_reloc_upper_bound calls this routine with JUST_COUNT
4932 set to true to indicate it only needs a count of the number
4933 of actual relocations. */
4936 som_slurp_reloc_table (abfd, section, symbols, just_count)
4942 char *external_relocs;
4943 unsigned int fixup_stream_size;
4944 arelent *internal_relocs;
4945 unsigned int num_relocs;
4948 fixup_stream_size = som_section_data (section)->reloc_size;
4949 /* If there were no relocations, then there is nothing to do. */
4950 if (section->reloc_count == 0)
4953 /* If reloc_count is -1, then the relocation stream has not been
4954 parsed. We must do so now to know how many relocations exist. */
4955 if (section->reloc_count == (unsigned) -1)
4957 amt = fixup_stream_size;
4958 external_relocs = (char *) bfd_malloc (amt);
4959 if (external_relocs == (char *) NULL)
4961 /* Read in the external forms. */
4963 obj_som_reloc_filepos (abfd) + section->rel_filepos,
4967 if (bfd_bread (external_relocs, amt, abfd) != amt)
4970 /* Let callers know how many relocations found.
4971 also save the relocation stream as we will
4973 section->reloc_count = som_set_reloc_info (external_relocs,
4975 NULL, NULL, NULL, true);
4977 som_section_data (section)->reloc_stream = external_relocs;
4980 /* If the caller only wanted a count, then return now. */
4984 num_relocs = section->reloc_count;
4985 external_relocs = som_section_data (section)->reloc_stream;
4986 /* Return saved information about the relocations if it is available. */
4987 if (section->relocation != (arelent *) NULL)
4991 amt *= sizeof (arelent);
4992 internal_relocs = (arelent *) bfd_zalloc (abfd, (amt));
4993 if (internal_relocs == (arelent *) NULL)
4996 /* Process and internalize the relocations. */
4997 som_set_reloc_info (external_relocs, fixup_stream_size,
4998 internal_relocs, section, symbols, false);
5000 /* We're done with the external relocations. Free them. */
5001 free (external_relocs);
5002 som_section_data (section)->reloc_stream = NULL;
5004 /* Save our results and return success. */
5005 section->relocation = internal_relocs;
5009 /* Return the number of bytes required to store the relocation
5010 information associated with the given section. */
5013 som_get_reloc_upper_bound (abfd, asect)
5017 /* If section has relocations, then read in the relocation stream
5018 and parse it to determine how many relocations exist. */
5019 if (asect->flags & SEC_RELOC)
5021 if (! som_slurp_reloc_table (abfd, asect, NULL, true))
5023 return (asect->reloc_count + 1) * sizeof (arelent *);
5025 /* There are no relocations. */
5029 /* Convert relocations from SOM (external) form into BFD internal
5030 form. Return the number of relocations. */
5033 som_canonicalize_reloc (abfd, section, relptr, symbols)
5042 if (som_slurp_reloc_table (abfd, section, symbols, false) == false)
5045 count = section->reloc_count;
5046 tblptr = section->relocation;
5049 *relptr++ = tblptr++;
5051 *relptr = (arelent *) NULL;
5052 return section->reloc_count;
5055 extern const bfd_target som_vec;
5057 /* A hook to set up object file dependent section information. */
5060 som_new_section_hook (abfd, newsect)
5064 bfd_size_type amt = sizeof (struct som_section_data_struct);
5065 newsect->used_by_bfd = (PTR) bfd_zalloc (abfd, amt);
5066 if (!newsect->used_by_bfd)
5068 newsect->alignment_power = 3;
5070 /* We allow more than three sections internally. */
5074 /* Copy any private info we understand from the input symbol
5075 to the output symbol. */
5078 som_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol)
5084 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5085 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5087 /* One day we may try to grok other private data. */
5088 if (ibfd->xvec->flavour != bfd_target_som_flavour
5089 || obfd->xvec->flavour != bfd_target_som_flavour)
5092 /* The only private information we need to copy is the argument relocation
5094 output_symbol->tc_data.ap.hppa_arg_reloc =
5095 input_symbol->tc_data.ap.hppa_arg_reloc;
5100 /* Copy any private info we understand from the input section
5101 to the output section. */
5104 som_bfd_copy_private_section_data (ibfd, isection, obfd, osection)
5112 /* One day we may try to grok other private data. */
5113 if (ibfd->xvec->flavour != bfd_target_som_flavour
5114 || obfd->xvec->flavour != bfd_target_som_flavour
5115 || (!som_is_space (isection) && !som_is_subspace (isection)))
5118 amt = sizeof (struct som_copyable_section_data_struct);
5119 som_section_data (osection)->copy_data =
5120 (struct som_copyable_section_data_struct *) bfd_zalloc (obfd, amt);
5121 if (som_section_data (osection)->copy_data == NULL)
5124 memcpy (som_section_data (osection)->copy_data,
5125 som_section_data (isection)->copy_data,
5126 sizeof (struct som_copyable_section_data_struct));
5128 /* Reparent if necessary. */
5129 if (som_section_data (osection)->copy_data->container)
5130 som_section_data (osection)->copy_data->container =
5131 som_section_data (osection)->copy_data->container->output_section;
5136 /* Copy any private info we understand from the input bfd
5137 to the output bfd. */
5140 som_bfd_copy_private_bfd_data (ibfd, obfd)
5143 /* One day we may try to grok other private data. */
5144 if (ibfd->xvec->flavour != bfd_target_som_flavour
5145 || obfd->xvec->flavour != bfd_target_som_flavour)
5148 /* Allocate some memory to hold the data we need. */
5149 obj_som_exec_data (obfd) = (struct som_exec_data *)
5150 bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5151 if (obj_som_exec_data (obfd) == NULL)
5154 /* Now copy the data. */
5155 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5156 sizeof (struct som_exec_data));
5161 /* Set backend info for sections which can not be described
5162 in the BFD data structures. */
5165 bfd_som_set_section_attributes (section, defined, private, sort_key, spnum)
5169 unsigned int sort_key;
5172 /* Allocate memory to hold the magic information. */
5173 if (som_section_data (section)->copy_data == NULL)
5175 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5176 som_section_data (section)->copy_data =
5177 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5179 if (som_section_data (section)->copy_data == NULL)
5182 som_section_data (section)->copy_data->sort_key = sort_key;
5183 som_section_data (section)->copy_data->is_defined = defined;
5184 som_section_data (section)->copy_data->is_private = private;
5185 som_section_data (section)->copy_data->container = section;
5186 som_section_data (section)->copy_data->space_number = spnum;
5190 /* Set backend info for subsections which can not be described
5191 in the BFD data structures. */
5194 bfd_som_set_subsection_attributes (section, container, access,
5197 asection *container;
5199 unsigned int sort_key;
5202 /* Allocate memory to hold the magic information. */
5203 if (som_section_data (section)->copy_data == NULL)
5205 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5206 som_section_data (section)->copy_data =
5207 (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner,
5209 if (som_section_data (section)->copy_data == NULL)
5212 som_section_data (section)->copy_data->sort_key = sort_key;
5213 som_section_data (section)->copy_data->access_control_bits = access;
5214 som_section_data (section)->copy_data->quadrant = quadrant;
5215 som_section_data (section)->copy_data->container = container;
5219 /* Set the full SOM symbol type. SOM needs far more symbol information
5220 than any other object file format I'm aware of. It is mandatory
5221 to be able to know if a symbol is an entry point, millicode, data,
5222 code, absolute, storage request, or procedure label. If you get
5223 the symbol type wrong your program will not link. */
5226 bfd_som_set_symbol_type (symbol, type)
5230 som_symbol_data (symbol)->som_type = type;
5233 /* Attach an auxiliary header to the BFD backend so that it may be
5234 written into the object file. */
5237 bfd_som_attach_aux_hdr (abfd, type, string)
5244 if (type == VERSION_AUX_ID)
5246 size_t len = strlen (string);
5250 pad = (4 - (len % 4));
5251 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5252 obj_som_version_hdr (abfd) =
5253 (struct user_string_aux_hdr *) bfd_zalloc (abfd, amt);
5254 if (!obj_som_version_hdr (abfd))
5256 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5257 obj_som_version_hdr (abfd)->header_id.length = len + pad;
5258 obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
5259 obj_som_version_hdr (abfd)->string_length = len;
5260 strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
5262 else if (type == COPYRIGHT_AUX_ID)
5264 int len = strlen (string);
5268 pad = (4 - (len % 4));
5269 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5270 obj_som_copyright_hdr (abfd) =
5271 (struct copyright_aux_hdr *) bfd_zalloc (abfd, amt);
5272 if (!obj_som_copyright_hdr (abfd))
5274 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5275 obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
5276 obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
5277 obj_som_copyright_hdr (abfd)->string_length = len;
5278 strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
5283 /* Attach an compilation unit header to the BFD backend so that it may be
5284 written into the object file. */
5287 bfd_som_attach_compilation_unit (abfd, name, language_name, product_id,
5291 const char *language_name;
5292 const char *product_id;
5293 const char *version_id;
5295 COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
5302 n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5303 if (n->f.n_name == NULL) \
5305 strcpy (n->f.n_name, f); \
5309 STRDUP (language_name);
5310 STRDUP (product_id);
5311 STRDUP (version_id);
5315 obj_som_compilation_unit (abfd) = n;
5321 som_get_section_contents (abfd, section, location, offset, count)
5326 bfd_size_type count;
5328 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5330 if ((bfd_size_type) (offset+count) > section->_raw_size
5331 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5332 || bfd_bread (location, count, abfd) != count)
5333 return (false); /* on error */
5338 som_set_section_contents (abfd, section, location, offset, count)
5343 bfd_size_type count;
5345 if (abfd->output_has_begun == false)
5347 /* Set up fixed parts of the file, space, and subspace headers.
5348 Notify the world that output has begun. */
5349 som_prep_headers (abfd);
5350 abfd->output_has_begun = true;
5351 /* Start writing the object file. This include all the string
5352 tables, fixup streams, and other portions of the object file. */
5353 som_begin_writing (abfd);
5356 /* Only write subspaces which have "real" contents (eg. the contents
5357 are not generated at run time by the OS). */
5358 if (!som_is_subspace (section)
5359 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5362 /* Seek to the proper offset within the object file and write the
5364 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5365 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5368 if (bfd_bwrite ((PTR) location, count, abfd) != count)
5374 som_set_arch_mach (abfd, arch, machine)
5376 enum bfd_architecture arch;
5377 unsigned long machine;
5379 /* Allow any architecture to be supported by the SOM backend. */
5380 return bfd_default_set_arch_mach (abfd, arch, machine);
5384 som_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
5385 functionname_ptr, line_ptr)
5386 bfd *abfd ATTRIBUTE_UNUSED;
5387 asection *section ATTRIBUTE_UNUSED;
5388 asymbol **symbols ATTRIBUTE_UNUSED;
5389 bfd_vma offset ATTRIBUTE_UNUSED;
5390 const char **filename_ptr ATTRIBUTE_UNUSED;
5391 const char **functionname_ptr ATTRIBUTE_UNUSED;
5392 unsigned int *line_ptr ATTRIBUTE_UNUSED;
5398 som_sizeof_headers (abfd, reloc)
5399 bfd *abfd ATTRIBUTE_UNUSED;
5400 boolean reloc ATTRIBUTE_UNUSED;
5402 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5408 /* Return the single-character symbol type corresponding to
5409 SOM section S, or '?' for an unknown SOM section. */
5412 som_section_type (s)
5415 const struct section_to_type *t;
5417 for (t = &stt[0]; t->section; t++)
5418 if (!strcmp (s, t->section))
5424 som_decode_symclass (symbol)
5429 if (bfd_is_com_section (symbol->section))
5431 if (bfd_is_und_section (symbol->section))
5433 if (bfd_is_ind_section (symbol->section))
5435 if (symbol->flags & BSF_WEAK)
5437 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5440 if (bfd_is_abs_section (symbol->section)
5441 || (som_symbol_data (symbol) != NULL
5442 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5444 else if (symbol->section)
5445 c = som_section_type (symbol->section->name);
5448 if (symbol->flags & BSF_GLOBAL)
5453 /* Return information about SOM symbol SYMBOL in RET. */
5456 som_get_symbol_info (ignore_abfd, symbol, ret)
5457 bfd *ignore_abfd ATTRIBUTE_UNUSED;
5461 ret->type = som_decode_symclass (symbol);
5462 if (ret->type != 'U')
5463 ret->value = symbol->value + symbol->section->vma;
5466 ret->name = symbol->name;
5469 /* Count the number of symbols in the archive symbol table. Necessary
5470 so that we can allocate space for all the carsyms at once. */
5473 som_bfd_count_ar_symbols (abfd, lst_header, count)
5475 struct lst_header *lst_header;
5479 unsigned int *hash_table = NULL;
5481 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5483 amt = lst_header->hash_size;
5484 amt *= sizeof (unsigned int);
5485 hash_table = (unsigned int *) bfd_malloc (amt);
5486 if (hash_table == NULL && lst_header->hash_size != 0)
5489 /* Don't forget to initialize the counter! */
5492 /* Read in the hash table. The has table is an array of 32bit file offsets
5493 which point to the hash chains. */
5494 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5497 /* Walk each chain counting the number of symbols found on that particular
5499 for (i = 0; i < lst_header->hash_size; i++)
5501 struct lst_symbol_record lst_symbol;
5503 /* An empty chain has zero as it's file offset. */
5504 if (hash_table[i] == 0)
5507 /* Seek to the first symbol in this hash chain. */
5508 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5511 /* Read in this symbol and update the counter. */
5512 amt = sizeof (lst_symbol);
5513 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5518 /* Now iterate through the rest of the symbols on this chain. */
5519 while (lst_symbol.next_entry)
5522 /* Seek to the next symbol. */
5523 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5527 /* Read the symbol in and update the counter. */
5528 amt = sizeof (lst_symbol);
5529 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5535 if (hash_table != NULL)
5540 if (hash_table != NULL)
5545 /* Fill in the canonical archive symbols (SYMS) from the archive described
5546 by ABFD and LST_HEADER. */
5549 som_bfd_fill_in_ar_symbols (abfd, lst_header, syms)
5551 struct lst_header *lst_header;
5554 unsigned int i, len;
5555 carsym *set = syms[0];
5556 unsigned int *hash_table = NULL;
5557 struct som_entry *som_dict = NULL;
5559 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5561 amt = lst_header->hash_size;
5562 amt *= sizeof (unsigned int);
5563 hash_table = (unsigned int *) bfd_malloc (amt);
5564 if (hash_table == NULL && lst_header->hash_size != 0)
5567 /* Read in the hash table. The has table is an array of 32bit file offsets
5568 which point to the hash chains. */
5569 if (bfd_bread ((PTR) hash_table, amt, abfd) != amt)
5572 /* Seek to and read in the SOM dictionary. We will need this to fill
5573 in the carsym's filepos field. */
5574 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5577 amt = lst_header->module_count;
5578 amt *= sizeof (struct som_entry);
5579 som_dict = (struct som_entry *) bfd_malloc (amt);
5580 if (som_dict == NULL && lst_header->module_count != 0)
5583 if (bfd_bread ((PTR) som_dict, amt, abfd) != amt)
5586 /* Walk each chain filling in the carsyms as we go along. */
5587 for (i = 0; i < lst_header->hash_size; i++)
5589 struct lst_symbol_record lst_symbol;
5591 /* An empty chain has zero as it's file offset. */
5592 if (hash_table[i] == 0)
5595 /* Seek to and read the first symbol on the chain. */
5596 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5599 amt = sizeof (lst_symbol);
5600 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5603 /* Get the name of the symbol, first get the length which is stored
5604 as a 32bit integer just before the symbol.
5606 One might ask why we don't just read in the entire string table
5607 and index into it. Well, according to the SOM ABI the string
5608 index can point *anywhere* in the archive to save space, so just
5609 using the string table would not be safe. */
5610 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5611 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5614 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5617 /* Allocate space for the name and null terminate it too. */
5618 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5621 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5626 /* Fill in the file offset. Note that the "location" field points
5627 to the SOM itself, not the ar_hdr in front of it. */
5628 set->file_offset = som_dict[lst_symbol.som_index].location
5629 - sizeof (struct ar_hdr);
5631 /* Go to the next symbol. */
5634 /* Iterate through the rest of the chain. */
5635 while (lst_symbol.next_entry)
5637 /* Seek to the next symbol and read it in. */
5638 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5642 amt = sizeof (lst_symbol);
5643 if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt)
5646 /* Seek to the name length & string and read them in. */
5647 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5648 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5651 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5654 /* Allocate space for the name and null terminate it too. */
5655 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5659 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5663 /* Fill in the file offset. Note that the "location" field points
5664 to the SOM itself, not the ar_hdr in front of it. */
5665 set->file_offset = som_dict[lst_symbol.som_index].location
5666 - sizeof (struct ar_hdr);
5668 /* Go on to the next symbol. */
5672 /* If we haven't died by now, then we successfully read the entire
5673 archive symbol table. */
5674 if (hash_table != NULL)
5676 if (som_dict != NULL)
5681 if (hash_table != NULL)
5683 if (som_dict != NULL)
5688 /* Read in the LST from the archive. */
5691 som_slurp_armap (abfd)
5694 struct lst_header lst_header;
5695 struct ar_hdr ar_header;
5696 unsigned int parsed_size;
5697 struct artdata *ardata = bfd_ardata (abfd);
5699 bfd_size_type amt = 16;
5700 int i = bfd_bread ((PTR) nextname, amt, abfd);
5702 /* Special cases. */
5708 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
5711 /* For archives without .o files there is no symbol table. */
5712 if (strncmp (nextname, "/ ", 16))
5714 bfd_has_map (abfd) = false;
5718 /* Read in and sanity check the archive header. */
5719 amt = sizeof (struct ar_hdr);
5720 if (bfd_bread ((PTR) &ar_header, amt, abfd) != amt)
5723 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
5725 bfd_set_error (bfd_error_malformed_archive);
5729 /* How big is the archive symbol table entry? */
5731 parsed_size = strtol (ar_header.ar_size, NULL, 10);
5734 bfd_set_error (bfd_error_malformed_archive);
5738 /* Save off the file offset of the first real user data. */
5739 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
5741 /* Read in the library symbol table. We'll make heavy use of this
5742 in just a minute. */
5743 amt = sizeof (struct lst_header);
5744 if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt)
5748 if (lst_header.a_magic != LIBMAGIC)
5750 bfd_set_error (bfd_error_malformed_archive);
5754 /* Count the number of symbols in the library symbol table. */
5755 if (som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count)
5759 /* Get back to the start of the library symbol table. */
5760 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
5761 + sizeof (struct lst_header)), SEEK_SET) != 0)
5764 /* Initializae the cache and allocate space for the library symbols. */
5766 amt = ardata->symdef_count;
5767 amt *= sizeof (carsym);
5768 ardata->symdefs = (carsym *) bfd_alloc (abfd, amt);
5769 if (!ardata->symdefs)
5772 /* Now fill in the canonical archive symbols. */
5773 if (som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs)
5777 /* Seek back to the "first" file in the archive. Note the "first"
5778 file may be the extended name table. */
5779 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
5782 /* Notify the generic archive code that we have a symbol map. */
5783 bfd_has_map (abfd) = true;
5787 /* Begin preparing to write a SOM library symbol table.
5789 As part of the prep work we need to determine the number of symbols
5790 and the size of the associated string section. */
5793 som_bfd_prep_for_ar_write (abfd, num_syms, stringsize)
5795 unsigned int *num_syms, *stringsize;
5797 bfd *curr_bfd = abfd->archive_head;
5799 /* Some initialization. */
5803 /* Iterate over each BFD within this archive. */
5804 while (curr_bfd != NULL)
5806 unsigned int curr_count, i;
5807 som_symbol_type *sym;
5809 /* Don't bother for non-SOM objects. */
5810 if (curr_bfd->format != bfd_object
5811 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5813 curr_bfd = curr_bfd->next;
5817 /* Make sure the symbol table has been read, then snag a pointer
5818 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5819 but doing so avoids allocating lots of extra memory. */
5820 if (som_slurp_symbol_table (curr_bfd) == false)
5823 sym = obj_som_symtab (curr_bfd);
5824 curr_count = bfd_get_symcount (curr_bfd);
5826 /* Examine each symbol to determine if it belongs in the
5827 library symbol table. */
5828 for (i = 0; i < curr_count; i++, sym++)
5830 struct som_misc_symbol_info info;
5832 /* Derive SOM information from the BFD symbol. */
5833 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5835 /* Should we include this symbol? */
5836 if (info.symbol_type == ST_NULL
5837 || info.symbol_type == ST_SYM_EXT
5838 || info.symbol_type == ST_ARG_EXT)
5841 /* Only global symbols and unsatisfied commons. */
5842 if (info.symbol_scope != SS_UNIVERSAL
5843 && info.symbol_type != ST_STORAGE)
5846 /* Do no include undefined symbols. */
5847 if (bfd_is_und_section (sym->symbol.section))
5850 /* Bump the various counters, being careful to honor
5851 alignment considerations in the string table. */
5853 *stringsize = *stringsize + strlen (sym->symbol.name) + 5;
5854 while (*stringsize % 4)
5858 curr_bfd = curr_bfd->next;
5863 /* Hash a symbol name based on the hashing algorithm presented in the
5867 som_bfd_ar_symbol_hash (symbol)
5870 unsigned int len = strlen (symbol->name);
5872 /* Names with length 1 are special. */
5874 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
5876 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
5877 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
5880 /* Do the bulk of the work required to write the SOM library
5884 som_bfd_ar_write_symbol_stuff (abfd, nsyms, string_size, lst, elength)
5886 unsigned int nsyms, string_size;
5887 struct lst_header lst;
5890 file_ptr lst_filepos;
5891 char *strings = NULL, *p;
5892 struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
5894 unsigned int *hash_table = NULL;
5895 struct som_entry *som_dict = NULL;
5896 struct lst_symbol_record **last_hash_entry = NULL;
5897 unsigned int curr_som_offset, som_index = 0;
5900 amt = lst.hash_size;
5901 amt *= sizeof (unsigned int);
5902 hash_table = (unsigned int *) bfd_malloc (amt);
5903 if (hash_table == NULL && lst.hash_size != 0)
5906 amt = lst.module_count;
5907 amt *= sizeof (struct som_entry);
5908 som_dict = (struct som_entry *) bfd_malloc (amt);
5909 if (som_dict == NULL && lst.module_count != 0)
5912 amt = lst.hash_size;
5913 amt *= sizeof (struct lst_symbol_record *);
5914 last_hash_entry = ((struct lst_symbol_record **) bfd_malloc (amt));
5915 if (last_hash_entry == NULL && lst.hash_size != 0)
5918 /* Lots of fields are file positions relative to the start
5919 of the lst record. So save its location. */
5920 lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5922 /* Some initialization. */
5923 memset (hash_table, 0, 4 * lst.hash_size);
5924 memset (som_dict, 0, lst.module_count * sizeof (struct som_entry));
5925 memset (last_hash_entry, 0,
5926 lst.hash_size * sizeof (struct lst_symbol_record *));
5928 /* Symbols have som_index fields, so we have to keep track of the
5929 index of each SOM in the archive.
5931 The SOM dictionary has (among other things) the absolute file
5932 position for the SOM which a particular dictionary entry
5933 describes. We have to compute that information as we iterate
5934 through the SOMs/symbols. */
5937 /* We add in the size of the archive header twice as the location
5938 in the SOM dictionary is the actual offset of the SOM, not the
5939 archive header before the SOM. */
5940 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end;
5942 /* Make room for the archive header and the contents of the
5943 extended string table. Note that elength includes the size
5944 of the archive header for the extended name table! */
5946 curr_som_offset += elength;
5948 /* Make sure we're properly aligned. */
5949 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
5951 /* FIXME should be done with buffers just like everything else... */
5953 amt *= sizeof (struct lst_symbol_record);
5954 lst_syms = bfd_malloc (amt);
5955 if (lst_syms == NULL && nsyms != 0)
5957 strings = bfd_malloc ((bfd_size_type) string_size);
5958 if (strings == NULL && string_size != 0)
5962 curr_lst_sym = lst_syms;
5964 curr_bfd = abfd->archive_head;
5965 while (curr_bfd != NULL)
5967 unsigned int curr_count, i;
5968 som_symbol_type *sym;
5970 /* Don't bother for non-SOM objects. */
5971 if (curr_bfd->format != bfd_object
5972 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5974 curr_bfd = curr_bfd->next;
5978 /* Make sure the symbol table has been read, then snag a pointer
5979 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5980 but doing so avoids allocating lots of extra memory. */
5981 if (som_slurp_symbol_table (curr_bfd) == false)
5984 sym = obj_som_symtab (curr_bfd);
5985 curr_count = bfd_get_symcount (curr_bfd);
5987 for (i = 0; i < curr_count; i++, sym++)
5989 struct som_misc_symbol_info info;
5991 /* Derive SOM information from the BFD symbol. */
5992 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5994 /* Should we include this symbol? */
5995 if (info.symbol_type == ST_NULL
5996 || info.symbol_type == ST_SYM_EXT
5997 || info.symbol_type == ST_ARG_EXT)
6000 /* Only global symbols and unsatisfied commons. */
6001 if (info.symbol_scope != SS_UNIVERSAL
6002 && info.symbol_type != ST_STORAGE)
6005 /* Do no include undefined symbols. */
6006 if (bfd_is_und_section (sym->symbol.section))
6009 /* If this is the first symbol from this SOM, then update
6010 the SOM dictionary too. */
6011 if (som_dict[som_index].location == 0)
6013 som_dict[som_index].location = curr_som_offset;
6014 som_dict[som_index].length = arelt_size (curr_bfd);
6017 /* Fill in the lst symbol record. */
6018 curr_lst_sym->hidden = 0;
6019 curr_lst_sym->secondary_def = info.secondary_def;
6020 curr_lst_sym->symbol_type = info.symbol_type;
6021 curr_lst_sym->symbol_scope = info.symbol_scope;
6022 curr_lst_sym->check_level = 0;
6023 curr_lst_sym->must_qualify = 0;
6024 curr_lst_sym->initially_frozen = 0;
6025 curr_lst_sym->memory_resident = 0;
6026 curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section);
6027 curr_lst_sym->dup_common = 0;
6028 curr_lst_sym->xleast = 3;
6029 curr_lst_sym->arg_reloc = info.arg_reloc;
6030 curr_lst_sym->name.n_strx = p - strings + 4;
6031 curr_lst_sym->qualifier_name.n_strx = 0;
6032 curr_lst_sym->symbol_info = info.symbol_info;
6033 curr_lst_sym->symbol_value = info.symbol_value | info.priv_level;
6034 curr_lst_sym->symbol_descriptor = 0;
6035 curr_lst_sym->reserved = 0;
6036 curr_lst_sym->som_index = som_index;
6037 curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6038 curr_lst_sym->next_entry = 0;
6040 /* Insert into the hash table. */
6041 if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
6043 struct lst_symbol_record *tmp;
6045 /* There is already something at the head of this hash chain,
6046 so tack this symbol onto the end of the chain. */
6047 tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size];
6049 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6051 + lst.module_count * sizeof (struct som_entry)
6052 + sizeof (struct lst_header);
6056 /* First entry in this hash chain. */
6057 hash_table[curr_lst_sym->symbol_key % lst.hash_size]
6058 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6060 + lst.module_count * sizeof (struct som_entry)
6061 + sizeof (struct lst_header);
6064 /* Keep track of the last symbol we added to this chain so we can
6065 easily update its next_entry pointer. */
6066 last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]
6069 /* Update the string table. */
6070 bfd_put_32 (abfd, strlen (sym->symbol.name), p);
6072 strcpy (p, sym->symbol.name);
6073 p += strlen (sym->symbol.name) + 1;
6076 bfd_put_8 (abfd, 0, p);
6080 /* Head to the next symbol. */
6084 /* Keep track of where each SOM will finally reside; then look
6086 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6088 /* A particular object in the archive may have an odd length; the
6089 linker requires objects begin on an even boundary. So round
6090 up the current offset as necessary. */
6091 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6092 curr_bfd = curr_bfd->next;
6096 /* Now scribble out the hash table. */
6097 amt = lst.hash_size * 4;
6098 if (bfd_bwrite ((PTR) hash_table, amt, abfd) != amt)
6101 /* Then the SOM dictionary. */
6102 amt = lst.module_count * sizeof (struct som_entry);
6103 if (bfd_bwrite ((PTR) som_dict, amt, abfd) != amt)
6106 /* The library symbols. */
6107 amt = nsyms * sizeof (struct lst_symbol_record);
6108 if (bfd_bwrite ((PTR) lst_syms, amt, abfd) != amt)
6111 /* And finally the strings. */
6113 if (bfd_bwrite ((PTR) strings, amt, abfd) != amt)
6116 if (hash_table != NULL)
6118 if (som_dict != NULL)
6120 if (last_hash_entry != NULL)
6121 free (last_hash_entry);
6122 if (lst_syms != NULL)
6124 if (strings != NULL)
6129 if (hash_table != NULL)
6131 if (som_dict != NULL)
6133 if (last_hash_entry != NULL)
6134 free (last_hash_entry);
6135 if (lst_syms != NULL)
6137 if (strings != NULL)
6143 /* Write out the LST for the archive.
6145 You'll never believe this is really how armaps are handled in SOM... */
6148 som_write_armap (abfd, elength, map, orl_count, stridx)
6150 unsigned int elength;
6151 struct orl *map ATTRIBUTE_UNUSED;
6152 unsigned int orl_count ATTRIBUTE_UNUSED;
6153 int stridx ATTRIBUTE_UNUSED;
6156 struct stat statbuf;
6157 unsigned int i, lst_size, nsyms, stringsize;
6159 struct lst_header lst;
6163 /* We'll use this for the archive's date and mode later. */
6164 if (stat (abfd->filename, &statbuf) != 0)
6166 bfd_set_error (bfd_error_system_call);
6170 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6172 /* Account for the lst header first. */
6173 lst_size = sizeof (struct lst_header);
6175 /* Start building the LST header. */
6176 /* FIXME: Do we need to examine each element to determine the
6177 largest id number? */
6178 lst.system_id = CPU_PA_RISC1_0;
6179 lst.a_magic = LIBMAGIC;
6180 lst.version_id = VERSION_ID;
6181 lst.file_time.secs = 0;
6182 lst.file_time.nanosecs = 0;
6184 lst.hash_loc = lst_size;
6185 lst.hash_size = SOM_LST_HASH_SIZE;
6187 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6188 lst_size += 4 * SOM_LST_HASH_SIZE;
6190 /* We need to count the number of SOMs in this archive. */
6191 curr_bfd = abfd->archive_head;
6192 lst.module_count = 0;
6193 while (curr_bfd != NULL)
6195 /* Only true SOM objects count. */
6196 if (curr_bfd->format == bfd_object
6197 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6199 curr_bfd = curr_bfd->next;
6201 lst.module_limit = lst.module_count;
6202 lst.dir_loc = lst_size;
6203 lst_size += sizeof (struct som_entry) * lst.module_count;
6205 /* We don't support import/export tables, auxiliary headers,
6206 or free lists yet. Make the linker work a little harder
6207 to make our life easier. */
6210 lst.export_count = 0;
6215 /* Count how many symbols we will have on the hash chains and the
6216 size of the associated string table. */
6217 if (som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize) == false)
6220 lst_size += sizeof (struct lst_symbol_record) * nsyms;
6222 /* For the string table. One day we might actually use this info
6223 to avoid small seeks/reads when reading archives. */
6224 lst.string_loc = lst_size;
6225 lst.string_size = stringsize;
6226 lst_size += stringsize;
6228 /* SOM ABI says this must be zero. */
6230 lst.file_end = lst_size;
6232 /* Compute the checksum. Must happen after the entire lst header
6236 for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
6237 lst.checksum ^= *p++;
6239 sprintf (hdr.ar_name, "/ ");
6240 sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
6241 sprintf (hdr.ar_uid, "%ld", (long) getuid ());
6242 sprintf (hdr.ar_gid, "%ld", (long) getgid ());
6243 sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode);
6244 sprintf (hdr.ar_size, "%-10d", (int) lst_size);
6245 hdr.ar_fmag[0] = '`';
6246 hdr.ar_fmag[1] = '\012';
6248 /* Turn any nulls into spaces. */
6249 for (i = 0; i < sizeof (struct ar_hdr); i++)
6250 if (((char *) (&hdr))[i] == '\0')
6251 (((char *) (&hdr))[i]) = ' ';
6253 /* Scribble out the ar header. */
6254 amt = sizeof (struct ar_hdr);
6255 if (bfd_bwrite ((PTR) &hdr, amt, abfd) != amt)
6258 /* Now scribble out the lst header. */
6259 amt = sizeof (struct lst_header);
6260 if (bfd_bwrite ((PTR) &lst, amt, abfd) != amt)
6263 /* Build and write the armap. */
6264 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6271 /* Free all information we have cached for this BFD. We can always
6272 read it again later if we need it. */
6275 som_bfd_free_cached_info (abfd)
6280 if (bfd_get_format (abfd) != bfd_object)
6283 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6284 /* Free the native string and symbol tables. */
6285 FREE (obj_som_symtab (abfd));
6286 FREE (obj_som_stringtab (abfd));
6287 for (o = abfd->sections; o != (asection *) NULL; o = o->next)
6289 /* Free the native relocations. */
6290 o->reloc_count = (unsigned) -1;
6291 FREE (som_section_data (o)->reloc_stream);
6292 /* Free the generic relocations. */
6293 FREE (o->relocation);
6300 /* End of miscellaneous support functions. */
6302 /* Linker support functions. */
6305 som_bfd_link_split_section (abfd, sec)
6306 bfd *abfd ATTRIBUTE_UNUSED;
6309 return (som_is_subspace (sec) && sec->_raw_size > 240000);
6312 #define som_close_and_cleanup som_bfd_free_cached_info
6314 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6315 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6316 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6317 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6318 #define som_truncate_arname bfd_bsd_truncate_arname
6319 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6320 #define som_construct_extended_name_table \
6321 _bfd_archive_coff_construct_extended_name_table
6322 #define som_update_armap_timestamp bfd_true
6323 #define som_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
6325 #define som_get_lineno _bfd_nosymbols_get_lineno
6326 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6327 #define som_read_minisymbols _bfd_generic_read_minisymbols
6328 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6329 #define som_get_section_contents_in_window \
6330 _bfd_generic_get_section_contents_in_window
6332 #define som_bfd_get_relocated_section_contents \
6333 bfd_generic_get_relocated_section_contents
6334 #define som_bfd_relax_section bfd_generic_relax_section
6335 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6336 #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6337 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6338 #define som_bfd_final_link _bfd_generic_final_link
6340 #define som_bfd_gc_sections bfd_generic_gc_sections
6341 #define som_bfd_merge_sections bfd_generic_merge_sections
6343 const bfd_target som_vec = {
6345 bfd_target_som_flavour,
6346 BFD_ENDIAN_BIG, /* target byte order */
6347 BFD_ENDIAN_BIG, /* target headers byte order */
6348 (HAS_RELOC | EXEC_P | /* object flags */
6349 HAS_LINENO | HAS_DEBUG |
6350 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6351 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
6352 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
6354 /* leading_symbol_char: is the first char of a user symbol
6355 predictable, and if so what is it */
6357 '/', /* ar_pad_char */
6358 14, /* ar_max_namelen */
6359 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6360 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6361 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
6362 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6363 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6364 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
6366 som_object_p, /* bfd_check_format */
6367 bfd_generic_archive_p,
6373 _bfd_generic_mkarchive,
6378 som_write_object_contents,
6379 _bfd_write_archive_contents,
6384 BFD_JUMP_TABLE_GENERIC (som),
6385 BFD_JUMP_TABLE_COPY (som),
6386 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6387 BFD_JUMP_TABLE_ARCHIVE (som),
6388 BFD_JUMP_TABLE_SYMBOLS (som),
6389 BFD_JUMP_TABLE_RELOCS (som),
6390 BFD_JUMP_TABLE_WRITE (som),
6391 BFD_JUMP_TABLE_LINK (som),
6392 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6399 #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */