1 /* bfd back-end for HP PA-RISC SOM objects.
2 Copyright (C) 1990-2018 Free Software Foundation, Inc.
4 Contributed by the Center for Software Science at the
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "alloca-conf.h"
27 #include "libiberty.h"
30 #include "safe-ctype.h"
31 #include "som/reloc.h"
34 static bfd_reloc_status_type hppa_som_reloc
35 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
36 static bfd_boolean som_mkobject (bfd *);
37 static bfd_boolean som_is_space (asection *);
38 static bfd_boolean som_is_subspace (asection *);
39 static int compare_subspaces (const void *, const void *);
40 static unsigned long som_compute_checksum (struct som_external_header *);
41 static bfd_boolean som_build_and_write_symbol_table (bfd *);
42 static unsigned int som_slurp_symbol_table (bfd *);
44 /* Magic not defined in standard HP-UX header files until 8.0. */
46 #ifndef CPU_PA_RISC1_0
47 #define CPU_PA_RISC1_0 0x20B
48 #endif /* CPU_PA_RISC1_0 */
50 #ifndef CPU_PA_RISC1_1
51 #define CPU_PA_RISC1_1 0x210
52 #endif /* CPU_PA_RISC1_1 */
54 #ifndef CPU_PA_RISC2_0
55 #define CPU_PA_RISC2_0 0x214
56 #endif /* CPU_PA_RISC2_0 */
58 #ifndef _PA_RISC1_0_ID
59 #define _PA_RISC1_0_ID CPU_PA_RISC1_0
60 #endif /* _PA_RISC1_0_ID */
62 #ifndef _PA_RISC1_1_ID
63 #define _PA_RISC1_1_ID CPU_PA_RISC1_1
64 #endif /* _PA_RISC1_1_ID */
66 #ifndef _PA_RISC2_0_ID
67 #define _PA_RISC2_0_ID CPU_PA_RISC2_0
68 #endif /* _PA_RISC2_0_ID */
70 #ifndef _PA_RISC_MAXID
71 #define _PA_RISC_MAXID 0x2FF
72 #endif /* _PA_RISC_MAXID */
75 #define _PA_RISC_ID(__m_num) \
76 (((__m_num) == _PA_RISC1_0_ID) || \
77 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
78 #endif /* _PA_RISC_ID */
80 /* HIUX in it's infinite stupidity changed the names for several "well
81 known" constants. Work around such braindamage. Try the HPUX version
82 first, then the HIUX version, and finally provide a default. */
84 #define EXEC_AUX_ID HPUX_AUX_ID
87 #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
88 #define EXEC_AUX_ID HIUX_AUX_ID
95 /* Size (in chars) of the temporary buffers used during fixup and string
98 #define SOM_TMP_BUFSIZE 8192
100 /* Size of the hash table in archives. */
101 #define SOM_LST_HASH_SIZE 31
103 /* Max number of SOMs to be found in an archive. */
104 #define SOM_LST_MODULE_LIMIT 1024
106 /* Generic alignment macro. */
107 #define SOM_ALIGN(val, alignment) \
108 (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1))
110 /* SOM allows any one of the four previous relocations to be reused
111 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
112 relocations are always a single byte, using a R_PREV_FIXUP instead
113 of some multi-byte relocation makes object files smaller.
115 Note one side effect of using a R_PREV_FIXUP is the relocation that
116 is being repeated moves to the front of the queue. */
119 unsigned char *reloc;
123 /* This fully describes the symbol types which may be attached to
124 an EXPORT or IMPORT directive. Only SOM uses this formation
125 (ELF has no need for it). */
129 SYMBOL_TYPE_ABSOLUTE,
133 SYMBOL_TYPE_MILLICODE,
135 SYMBOL_TYPE_PRI_PROG,
136 SYMBOL_TYPE_SEC_PROG,
139 struct section_to_type
145 /* Assorted symbol information that needs to be derived from the BFD symbol
146 and/or the BFD backend private symbol data. */
147 struct som_misc_symbol_info
149 unsigned int symbol_type;
150 unsigned int symbol_scope;
151 unsigned int arg_reloc;
152 unsigned int symbol_info;
153 unsigned int symbol_value;
154 unsigned int priv_level;
155 unsigned int secondary_def;
156 unsigned int is_comdat;
157 unsigned int is_common;
158 unsigned int dup_common;
161 /* Map SOM section names to POSIX/BSD single-character symbol types.
163 This table includes all the standard subspaces as defined in the
164 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
165 some reason was left out, and sections specific to embedded stabs. */
167 static const struct section_to_type stt[] =
170 {"$SHLIB_INFO$", 't'},
171 {"$MILLICODE$", 't'},
174 {"$UNWIND_START$", 't'},
178 {"$SHLIB_DATA$", 'd'},
180 {"$SHORTDATA$", 'g'},
185 {"$GDB_STRINGS$", 'N'},
186 {"$GDB_SYMBOLS$", 'N'},
190 /* About the relocation formatting table...
192 There are 256 entries in the table, one for each possible
193 relocation opcode available in SOM. We index the table by
194 the relocation opcode. The names and operations are those
195 defined by a.out_800 (4).
197 Right now this table is only used to count and perform minimal
198 processing on relocation streams so that they can be internalized
199 into BFD and symbolically printed by utilities. To make actual use
200 of them would be much more difficult, BFD's concept of relocations
201 is far too simple to handle SOM relocations. The basic assumption
202 that a relocation can be completely processed independent of other
203 relocations before an object file is written is invalid for SOM.
205 The SOM relocations are meant to be processed as a stream, they
206 specify copying of data from the input section to the output section
207 while possibly modifying the data in some manner. They also can
208 specify that a variable number of zeros or uninitialized data be
209 inserted on in the output segment at the current offset. Some
210 relocations specify that some previous relocation be re-applied at
211 the current location in the input/output sections. And finally a number
212 of relocations have effects on other sections (R_ENTRY, R_EXIT,
213 R_UNWIND_AUX and a variety of others). There isn't even enough room
214 in the BFD relocation data structure to store enough information to
215 perform all the relocations.
217 Each entry in the table has three fields.
219 The first entry is an index into this "class" of relocations. This
220 index can then be used as a variable within the relocation itself.
222 The second field is a format string which actually controls processing
223 of the relocation. It uses a simple postfix machine to do calculations
224 based on variables/constants found in the string and the relocation
227 The third field specifys whether or not this relocation may use
228 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
229 stored in the instruction.
233 L = input space byte count
234 D = index into class of relocations
235 M = output space byte count
236 N = statement number (unused?)
238 R = parameter relocation bits
240 T = first 32 bits of stack unwind information
241 U = second 32 bits of stack unwind information
242 V = a literal constant (usually used in the next relocation)
243 P = a previous relocation
245 Lower case letters (starting with 'b') refer to following
246 bytes in the relocation stream. 'b' is the next 1 byte,
247 c is the next 2 bytes, d is the next 3 bytes, etc...
248 This is the variable part of the relocation entries that
249 makes our life a living hell.
251 numerical constants are also used in the format string. Note
252 the constants are represented in decimal.
254 '+', "*" and "=" represents the obvious postfix operators.
255 '<' represents a left shift.
259 Parameter Relocation Bits:
263 Previous Relocations: The index field represents which in the queue
264 of 4 previous fixups should be re-applied.
266 Literal Constants: These are generally used to represent addend
267 parts of relocations when these constants are not stored in the
268 fields of the instructions themselves. For example the instruction
269 addil foo-$global$-0x1234 would use an override for "0x1234" rather
270 than storing it into the addil itself. */
278 static const struct fixup_format som_fixup_formats[256] =
280 /* R_NO_RELOCATION. */
281 { 0, "LD1+4*=" }, /* 0x00 */
282 { 1, "LD1+4*=" }, /* 0x01 */
283 { 2, "LD1+4*=" }, /* 0x02 */
284 { 3, "LD1+4*=" }, /* 0x03 */
285 { 4, "LD1+4*=" }, /* 0x04 */
286 { 5, "LD1+4*=" }, /* 0x05 */
287 { 6, "LD1+4*=" }, /* 0x06 */
288 { 7, "LD1+4*=" }, /* 0x07 */
289 { 8, "LD1+4*=" }, /* 0x08 */
290 { 9, "LD1+4*=" }, /* 0x09 */
291 { 10, "LD1+4*=" }, /* 0x0a */
292 { 11, "LD1+4*=" }, /* 0x0b */
293 { 12, "LD1+4*=" }, /* 0x0c */
294 { 13, "LD1+4*=" }, /* 0x0d */
295 { 14, "LD1+4*=" }, /* 0x0e */
296 { 15, "LD1+4*=" }, /* 0x0f */
297 { 16, "LD1+4*=" }, /* 0x10 */
298 { 17, "LD1+4*=" }, /* 0x11 */
299 { 18, "LD1+4*=" }, /* 0x12 */
300 { 19, "LD1+4*=" }, /* 0x13 */
301 { 20, "LD1+4*=" }, /* 0x14 */
302 { 21, "LD1+4*=" }, /* 0x15 */
303 { 22, "LD1+4*=" }, /* 0x16 */
304 { 23, "LD1+4*=" }, /* 0x17 */
305 { 0, "LD8<b+1+4*=" }, /* 0x18 */
306 { 1, "LD8<b+1+4*=" }, /* 0x19 */
307 { 2, "LD8<b+1+4*=" }, /* 0x1a */
308 { 3, "LD8<b+1+4*=" }, /* 0x1b */
309 { 0, "LD16<c+1+4*=" }, /* 0x1c */
310 { 1, "LD16<c+1+4*=" }, /* 0x1d */
311 { 2, "LD16<c+1+4*=" }, /* 0x1e */
312 { 0, "Ld1+=" }, /* 0x1f */
314 { 0, "Lb1+4*=" }, /* 0x20 */
315 { 1, "Ld1+=" }, /* 0x21 */
317 { 0, "Lb1+4*=" }, /* 0x22 */
318 { 1, "Ld1+=" }, /* 0x23 */
320 { 0, "L4=" }, /* 0x24 */
321 /* R_DATA_ONE_SYMBOL. */
322 { 0, "L4=Sb=" }, /* 0x25 */
323 { 1, "L4=Sd=" }, /* 0x26 */
325 { 0, "L4=Sb=" }, /* 0x27 */
326 { 1, "L4=Sd=" }, /* 0x28 */
328 { 0, "L4=" }, /* 0x29 */
329 /* R_REPEATED_INIT. */
330 { 0, "L4=Mb1+4*=" }, /* 0x2a */
331 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
332 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
333 { 3, "Ld1+=Me1+=" }, /* 0x2d */
334 { 0, "" }, /* 0x2e */
335 { 0, "" }, /* 0x2f */
337 { 0, "L4=RD=Sb=" }, /* 0x30 */
338 { 1, "L4=RD=Sb=" }, /* 0x31 */
339 { 2, "L4=RD=Sb=" }, /* 0x32 */
340 { 3, "L4=RD=Sb=" }, /* 0x33 */
341 { 4, "L4=RD=Sb=" }, /* 0x34 */
342 { 5, "L4=RD=Sb=" }, /* 0x35 */
343 { 6, "L4=RD=Sb=" }, /* 0x36 */
344 { 7, "L4=RD=Sb=" }, /* 0x37 */
345 { 8, "L4=RD=Sb=" }, /* 0x38 */
346 { 9, "L4=RD=Sb=" }, /* 0x39 */
347 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
348 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
349 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
350 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
351 /* R_SHORT_PCREL_MODE. */
352 { 0, "" }, /* 0x3e */
353 /* R_LONG_PCREL_MODE. */
354 { 0, "" }, /* 0x3f */
356 { 0, "L4=RD=Sb=" }, /* 0x40 */
357 { 1, "L4=RD=Sb=" }, /* 0x41 */
358 { 2, "L4=RD=Sb=" }, /* 0x42 */
359 { 3, "L4=RD=Sb=" }, /* 0x43 */
360 { 4, "L4=RD=Sb=" }, /* 0x44 */
361 { 5, "L4=RD=Sb=" }, /* 0x45 */
362 { 6, "L4=RD=Sb=" }, /* 0x46 */
363 { 7, "L4=RD=Sb=" }, /* 0x47 */
364 { 8, "L4=RD=Sb=" }, /* 0x48 */
365 { 9, "L4=RD=Sb=" }, /* 0x49 */
366 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
367 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
368 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
369 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
371 { 0, "" }, /* 0x4e */
372 { 0, "" }, /* 0x4f */
374 { 0, "L4=SD=" }, /* 0x50 */
375 { 1, "L4=SD=" }, /* 0x51 */
376 { 2, "L4=SD=" }, /* 0x52 */
377 { 3, "L4=SD=" }, /* 0x53 */
378 { 4, "L4=SD=" }, /* 0x54 */
379 { 5, "L4=SD=" }, /* 0x55 */
380 { 6, "L4=SD=" }, /* 0x56 */
381 { 7, "L4=SD=" }, /* 0x57 */
382 { 8, "L4=SD=" }, /* 0x58 */
383 { 9, "L4=SD=" }, /* 0x59 */
384 { 10, "L4=SD=" }, /* 0x5a */
385 { 11, "L4=SD=" }, /* 0x5b */
386 { 12, "L4=SD=" }, /* 0x5c */
387 { 13, "L4=SD=" }, /* 0x5d */
388 { 14, "L4=SD=" }, /* 0x5e */
389 { 15, "L4=SD=" }, /* 0x5f */
390 { 16, "L4=SD=" }, /* 0x60 */
391 { 17, "L4=SD=" }, /* 0x61 */
392 { 18, "L4=SD=" }, /* 0x62 */
393 { 19, "L4=SD=" }, /* 0x63 */
394 { 20, "L4=SD=" }, /* 0x64 */
395 { 21, "L4=SD=" }, /* 0x65 */
396 { 22, "L4=SD=" }, /* 0x66 */
397 { 23, "L4=SD=" }, /* 0x67 */
398 { 24, "L4=SD=" }, /* 0x68 */
399 { 25, "L4=SD=" }, /* 0x69 */
400 { 26, "L4=SD=" }, /* 0x6a */
401 { 27, "L4=SD=" }, /* 0x6b */
402 { 28, "L4=SD=" }, /* 0x6c */
403 { 29, "L4=SD=" }, /* 0x6d */
404 { 30, "L4=SD=" }, /* 0x6e */
405 { 31, "L4=SD=" }, /* 0x6f */
406 { 32, "L4=Sb=" }, /* 0x70 */
407 { 33, "L4=Sd=" }, /* 0x71 */
409 { 0, "L4=Sd=" }, /* 0x72 */
411 { 0, "" }, /* 0x73 */
412 { 0, "" }, /* 0x74 */
413 { 0, "" }, /* 0x75 */
414 { 0, "" }, /* 0x76 */
415 { 0, "" }, /* 0x77 */
417 { 0, "L4=Sb=" }, /* 0x78 */
418 { 1, "L4=Sd=" }, /* 0x79 */
420 { 0, "" }, /* 0x7a */
421 { 0, "" }, /* 0x7b */
422 { 0, "" }, /* 0x7c */
423 { 0, "" }, /* 0x7d */
424 { 0, "" }, /* 0x7e */
425 { 0, "" }, /* 0x7f */
426 /* R_CODE_ONE_SYMBOL. */
427 { 0, "L4=SD=" }, /* 0x80 */
428 { 1, "L4=SD=" }, /* 0x81 */
429 { 2, "L4=SD=" }, /* 0x82 */
430 { 3, "L4=SD=" }, /* 0x83 */
431 { 4, "L4=SD=" }, /* 0x84 */
432 { 5, "L4=SD=" }, /* 0x85 */
433 { 6, "L4=SD=" }, /* 0x86 */
434 { 7, "L4=SD=" }, /* 0x87 */
435 { 8, "L4=SD=" }, /* 0x88 */
436 { 9, "L4=SD=" }, /* 0x89 */
437 { 10, "L4=SD=" }, /* 0x8q */
438 { 11, "L4=SD=" }, /* 0x8b */
439 { 12, "L4=SD=" }, /* 0x8c */
440 { 13, "L4=SD=" }, /* 0x8d */
441 { 14, "L4=SD=" }, /* 0x8e */
442 { 15, "L4=SD=" }, /* 0x8f */
443 { 16, "L4=SD=" }, /* 0x90 */
444 { 17, "L4=SD=" }, /* 0x91 */
445 { 18, "L4=SD=" }, /* 0x92 */
446 { 19, "L4=SD=" }, /* 0x93 */
447 { 20, "L4=SD=" }, /* 0x94 */
448 { 21, "L4=SD=" }, /* 0x95 */
449 { 22, "L4=SD=" }, /* 0x96 */
450 { 23, "L4=SD=" }, /* 0x97 */
451 { 24, "L4=SD=" }, /* 0x98 */
452 { 25, "L4=SD=" }, /* 0x99 */
453 { 26, "L4=SD=" }, /* 0x9a */
454 { 27, "L4=SD=" }, /* 0x9b */
455 { 28, "L4=SD=" }, /* 0x9c */
456 { 29, "L4=SD=" }, /* 0x9d */
457 { 30, "L4=SD=" }, /* 0x9e */
458 { 31, "L4=SD=" }, /* 0x9f */
459 { 32, "L4=Sb=" }, /* 0xa0 */
460 { 33, "L4=Sd=" }, /* 0xa1 */
462 { 0, "" }, /* 0xa2 */
463 { 0, "" }, /* 0xa3 */
464 { 0, "" }, /* 0xa4 */
465 { 0, "" }, /* 0xa5 */
466 { 0, "" }, /* 0xa6 */
467 { 0, "" }, /* 0xa7 */
468 { 0, "" }, /* 0xa8 */
469 { 0, "" }, /* 0xa9 */
470 { 0, "" }, /* 0xaa */
471 { 0, "" }, /* 0xab */
472 { 0, "" }, /* 0xac */
473 { 0, "" }, /* 0xad */
475 { 0, "L4=Sb=" }, /* 0xae */
476 { 1, "L4=Sd=" }, /* 0xaf */
478 { 0, "L4=Sb=" }, /* 0xb0 */
479 { 1, "L4=Sd=" }, /* 0xb1 */
481 { 0, "L4=" }, /* 0xb2 */
483 { 0, "Te=Ue=" }, /* 0xb3 */
484 { 1, "Uf=" }, /* 0xb4 */
486 { 0, "" }, /* 0xb5 */
488 { 0, "" }, /* 0xb6 */
490 { 0, "" }, /* 0xb7 */
492 { 0, "R0=" }, /* 0xb8 */
493 { 1, "Rb4*=" }, /* 0xb9 */
494 { 2, "Rd4*=" }, /* 0xba */
496 { 0, "" }, /* 0xbb */
498 { 0, "" }, /* 0xbc */
500 { 0, "Nb=" }, /* 0xbd */
501 { 1, "Nc=" }, /* 0xbe */
502 { 2, "Nd=" }, /* 0xbf */
504 { 0, "L4=" }, /* 0xc0 */
506 { 0, "L4=" }, /* 0xc1 */
508 { 0, "" }, /* 0xc2 */
510 { 0, "" }, /* 0xc3 */
512 { 0, "" }, /* 0xc4 */
514 { 0, "" }, /* 0xc5 */
516 { 0, "" }, /* 0xc6 */
518 { 0, "" }, /* 0xc7 */
520 { 0, "" }, /* 0xc8 */
521 /* R_DATA_OVERRIDE. */
522 { 0, "V0=" }, /* 0xc9 */
523 { 1, "Vb=" }, /* 0xca */
524 { 2, "Vc=" }, /* 0xcb */
525 { 3, "Vd=" }, /* 0xcc */
526 { 4, "Ve=" }, /* 0xcd */
528 { 0, "" }, /* 0xce */
530 { 0,"Sd=Ve=Ee=" }, /* 0xcf */
532 { 0, "Ob=" }, /* 0xd0 */
534 { 0, "Ob=Sd=" }, /* 0xd1 */
536 { 0, "Ob=Ve=" }, /* 0xd2 */
538 { 0, "P" }, /* 0xd3 */
539 { 1, "P" }, /* 0xd4 */
540 { 2, "P" }, /* 0xd5 */
541 { 3, "P" }, /* 0xd6 */
543 { 0, "" }, /* 0xd7 */
545 { 0, "" }, /* 0xd8 */
547 { 0, "" }, /* 0xd9 */
549 { 0, "Eb=Sd=Ve=" }, /* 0xda */
551 { 0, "Eb=Mb=" }, /* 0xdb */
552 /* R_LTP_OVERRIDE. */
553 { 0, "" }, /* 0xdc */
555 { 0, "Ob=Vf=" }, /* 0xdd */
557 { 0, "" }, /* 0xde */
558 { 0, "" }, /* 0xdf */
559 { 0, "" }, /* 0xe0 */
560 { 0, "" }, /* 0xe1 */
561 { 0, "" }, /* 0xe2 */
562 { 0, "" }, /* 0xe3 */
563 { 0, "" }, /* 0xe4 */
564 { 0, "" }, /* 0xe5 */
565 { 0, "" }, /* 0xe6 */
566 { 0, "" }, /* 0xe7 */
567 { 0, "" }, /* 0xe8 */
568 { 0, "" }, /* 0xe9 */
569 { 0, "" }, /* 0xea */
570 { 0, "" }, /* 0xeb */
571 { 0, "" }, /* 0xec */
572 { 0, "" }, /* 0xed */
573 { 0, "" }, /* 0xee */
574 { 0, "" }, /* 0xef */
575 { 0, "" }, /* 0xf0 */
576 { 0, "" }, /* 0xf1 */
577 { 0, "" }, /* 0xf2 */
578 { 0, "" }, /* 0xf3 */
579 { 0, "" }, /* 0xf4 */
580 { 0, "" }, /* 0xf5 */
581 { 0, "" }, /* 0xf6 */
582 { 0, "" }, /* 0xf7 */
583 { 0, "" }, /* 0xf8 */
584 { 0, "" }, /* 0xf9 */
585 { 0, "" }, /* 0xfa */
586 { 0, "" }, /* 0xfb */
587 { 0, "" }, /* 0xfc */
588 { 0, "" }, /* 0xfd */
589 { 0, "" }, /* 0xfe */
590 { 0, "" }, /* 0xff */
593 static const int comp1_opcodes[] =
615 static const int comp2_opcodes[] =
624 static const int comp3_opcodes[] =
631 /* These apparently are not in older versions of hpux reloc.h (hpux7). */
633 /* And these first appeared in hpux10. */
634 #ifndef R_SHORT_PCREL_MODE
635 #define NO_PCREL_MODES
636 #define R_SHORT_PCREL_MODE 0x3e
639 #define SOM_HOWTO(TYPE, NAME) \
640 HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
642 static reloc_howto_type som_hppa_howto_table[] =
644 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
645 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
646 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
647 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
648 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
649 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
650 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
651 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
652 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
653 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
654 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
655 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
656 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
657 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
658 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
659 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
660 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
661 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
662 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
663 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
664 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
665 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
666 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
667 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
668 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
669 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
670 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
671 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
672 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
673 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
674 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
675 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
676 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
677 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
678 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
679 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
680 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
681 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
682 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
683 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
684 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
685 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
686 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
687 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
688 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
689 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
690 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
691 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
692 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
693 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
694 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
695 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
696 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
697 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
698 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
699 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
700 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
701 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
702 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
703 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
704 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
705 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
706 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
707 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
708 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
709 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
710 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
711 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
712 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
713 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
714 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
715 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
716 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
717 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
718 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
719 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
720 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
721 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
722 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
723 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
724 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
725 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
726 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
727 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
728 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
729 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
730 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
731 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
732 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
733 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
734 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
735 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
736 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
737 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
738 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
739 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
740 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
741 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
742 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
743 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
744 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
745 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
746 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
747 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
748 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
749 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
750 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
751 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
752 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
753 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
754 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
755 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
756 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
757 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
758 SOM_HOWTO (R_DATA_GPREL, "R_DATA_GPREL"),
759 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
760 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
761 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
762 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
763 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
764 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
765 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
766 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
767 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
768 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
769 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
770 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
771 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
772 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
773 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
774 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
775 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
776 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
777 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
778 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
779 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
780 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
781 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
782 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
783 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
784 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
785 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
786 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
787 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
788 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
789 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
790 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
791 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
792 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
793 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
794 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
795 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
796 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
797 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
798 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
799 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
800 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
801 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
802 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
803 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
804 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
805 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
806 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
807 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
808 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
809 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
810 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
811 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
812 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
813 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
814 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
815 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
816 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
817 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
818 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
819 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
820 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
821 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
822 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
823 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
824 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
825 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
826 SOM_HOWTO (R_EXIT, "R_EXIT"),
827 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
828 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
829 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
830 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
831 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
832 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
833 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
834 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
835 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
836 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
837 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
838 SOM_HOWTO (R_FSEL, "R_FSEL"),
839 SOM_HOWTO (R_LSEL, "R_LSEL"),
840 SOM_HOWTO (R_RSEL, "R_RSEL"),
841 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
842 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
843 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
844 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
845 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
846 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
847 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
848 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
849 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
850 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
851 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
852 SOM_HOWTO (R_COMP1, "R_COMP1"),
853 SOM_HOWTO (R_COMP2, "R_COMP2"),
854 SOM_HOWTO (R_COMP3, "R_COMP3"),
855 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
856 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
857 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
858 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
859 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
860 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
861 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
862 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
863 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
864 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
865 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
866 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
867 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
868 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
869 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
870 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
871 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
872 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
873 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
874 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
875 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
876 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
877 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
878 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
879 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
880 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
881 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
882 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
883 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
884 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
885 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
886 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
887 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
888 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
889 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
890 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
891 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
892 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
893 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
894 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
895 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
896 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
897 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
898 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
899 SOM_HOWTO (R_RESERVED, "R_RESERVED")
902 /* Initialize the SOM relocation queue. By definition the queue holds
903 the last four multibyte fixups. */
906 som_initialize_reloc_queue (struct reloc_queue *queue)
908 queue[0].reloc = NULL;
910 queue[1].reloc = NULL;
912 queue[2].reloc = NULL;
914 queue[3].reloc = NULL;
918 /* Insert a new relocation into the relocation queue. */
921 som_reloc_queue_insert (unsigned char *p,
923 struct reloc_queue *queue)
925 queue[3].reloc = queue[2].reloc;
926 queue[3].size = queue[2].size;
927 queue[2].reloc = queue[1].reloc;
928 queue[2].size = queue[1].size;
929 queue[1].reloc = queue[0].reloc;
930 queue[1].size = queue[0].size;
932 queue[0].size = size;
935 /* When an entry in the relocation queue is reused, the entry moves
936 to the front of the queue. */
939 som_reloc_queue_fix (struct reloc_queue *queue, unsigned int idx)
946 unsigned char *tmp1 = queue[0].reloc;
947 unsigned int tmp2 = queue[0].size;
949 queue[0].reloc = queue[1].reloc;
950 queue[0].size = queue[1].size;
951 queue[1].reloc = tmp1;
952 queue[1].size = tmp2;
958 unsigned char *tmp1 = queue[0].reloc;
959 unsigned int tmp2 = queue[0].size;
961 queue[0].reloc = queue[2].reloc;
962 queue[0].size = queue[2].size;
963 queue[2].reloc = queue[1].reloc;
964 queue[2].size = queue[1].size;
965 queue[1].reloc = tmp1;
966 queue[1].size = tmp2;
972 unsigned char *tmp1 = queue[0].reloc;
973 unsigned int tmp2 = queue[0].size;
975 queue[0].reloc = queue[3].reloc;
976 queue[0].size = queue[3].size;
977 queue[3].reloc = queue[2].reloc;
978 queue[3].size = queue[2].size;
979 queue[2].reloc = queue[1].reloc;
980 queue[2].size = queue[1].size;
981 queue[1].reloc = tmp1;
982 queue[1].size = tmp2;
988 /* Search for a particular relocation in the relocation queue. */
991 som_reloc_queue_find (unsigned char *p,
993 struct reloc_queue *queue)
995 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
996 && size == queue[0].size)
998 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
999 && size == queue[1].size)
1001 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1002 && size == queue[2].size)
1004 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1005 && size == queue[3].size)
1010 static unsigned char *
1011 try_prev_fixup (bfd *abfd ATTRIBUTE_UNUSED,
1012 unsigned int *subspace_reloc_sizep,
1015 struct reloc_queue *queue)
1017 int queue_index = som_reloc_queue_find (p, size, queue);
1019 if (queue_index != -1)
1021 /* Found this in a previous fixup. Undo the fixup we
1022 just built and use R_PREV_FIXUP instead. We saved
1023 a total of size - 1 bytes in the fixup stream. */
1024 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1026 *subspace_reloc_sizep += 1;
1027 som_reloc_queue_fix (queue, queue_index);
1031 som_reloc_queue_insert (p, size, queue);
1032 *subspace_reloc_sizep += size;
1038 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1039 bytes without any relocation. Update the size of the subspace
1040 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
1041 current pointer into the relocation stream. */
1043 static unsigned char *
1044 som_reloc_skip (bfd *abfd,
1047 unsigned int *subspace_reloc_sizep,
1048 struct reloc_queue *queue)
1050 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1051 then R_PREV_FIXUPs to get the difference down to a
1053 if (skip >= 0x1000000)
1056 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1057 bfd_put_8 (abfd, 0xff, p + 1);
1058 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
1059 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1060 while (skip >= 0x1000000)
1063 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1065 *subspace_reloc_sizep += 1;
1066 /* No need to adjust queue here since we are repeating the
1067 most recent fixup. */
1071 /* The difference must be less than 0x1000000. Use one
1072 more R_NO_RELOCATION entry to get to the right difference. */
1073 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1075 /* Difference can be handled in a simple single-byte
1076 R_NO_RELOCATION entry. */
1079 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1080 *subspace_reloc_sizep += 1;
1083 /* Handle it with a two byte R_NO_RELOCATION entry. */
1084 else if (skip <= 0x1000)
1086 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1087 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1088 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1090 /* Handle it with a three byte R_NO_RELOCATION entry. */
1093 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
1094 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
1095 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1098 /* Ugh. Punt and use a 4 byte entry. */
1101 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1102 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
1103 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
1104 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1109 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1110 from a BFD relocation. Update the size of the subspace relocation
1111 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1112 into the relocation stream. */
1114 static unsigned char *
1115 som_reloc_addend (bfd *abfd,
1118 unsigned int *subspace_reloc_sizep,
1119 struct reloc_queue *queue)
1121 if (addend + 0x80 < 0x100)
1123 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1124 bfd_put_8 (abfd, addend, p + 1);
1125 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1127 else if (addend + 0x8000 < 0x10000)
1129 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1130 bfd_put_16 (abfd, addend, p + 1);
1131 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1133 else if (addend + 0x800000 < 0x1000000)
1135 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1136 bfd_put_8 (abfd, addend >> 16, p + 1);
1137 bfd_put_16 (abfd, addend, p + 2);
1138 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1142 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1143 bfd_put_32 (abfd, addend, p + 1);
1144 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1149 /* Handle a single function call relocation. */
1151 static unsigned char *
1152 som_reloc_call (bfd *abfd,
1154 unsigned int *subspace_reloc_sizep,
1157 struct reloc_queue *queue)
1159 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1160 int rtn_bits = arg_bits & 0x3;
1163 /* You'll never believe all this is necessary to handle relocations
1164 for function calls. Having to compute and pack the argument
1165 relocation bits is the real nightmare.
1167 If you're interested in how this works, just forget it. You really
1168 do not want to know about this braindamage. */
1170 /* First see if this can be done with a "simple" relocation. Simple
1171 relocations have a symbol number < 0x100 and have simple encodings
1172 of argument relocations. */
1174 if (sym_num < 0x100)
1186 case 1 << 8 | 1 << 6:
1187 case 1 << 8 | 1 << 6 | 1:
1190 case 1 << 8 | 1 << 6 | 1 << 4:
1191 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1194 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1195 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1199 /* Not one of the easy encodings. This will have to be
1200 handled by the more complex code below. */
1206 /* Account for the return value too. */
1210 /* Emit a 2 byte relocation. Then see if it can be handled
1211 with a relocation which is already in the relocation queue. */
1212 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1213 bfd_put_8 (abfd, sym_num, p + 1);
1214 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1219 /* If this could not be handled with a simple relocation, then do a hard
1220 one. Hard relocations occur if the symbol number was too high or if
1221 the encoding of argument relocation bits is too complex. */
1224 /* Don't ask about these magic sequences. I took them straight
1225 from gas-1.36 which took them from the a.out man page. */
1227 if ((arg_bits >> 6 & 0xf) == 0xe)
1230 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1231 if ((arg_bits >> 2 & 0xf) == 0xe)
1234 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
1236 /* Output the first two bytes of the relocation. These describe
1237 the length of the relocation and encoding style. */
1238 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1239 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1241 bfd_put_8 (abfd, type, p + 1);
1243 /* Now output the symbol index and see if this bizarre relocation
1244 just happened to be in the relocation queue. */
1245 if (sym_num < 0x100)
1247 bfd_put_8 (abfd, sym_num, p + 2);
1248 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1252 bfd_put_8 (abfd, sym_num >> 16, p + 2);
1253 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
1254 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1260 /* Return the logarithm of X, base 2, considering X unsigned,
1261 if X is a power of 2. Otherwise, returns -1. */
1264 exact_log2 (unsigned int x)
1268 /* Test for 0 or a power of 2. */
1269 if (x == 0 || x != (x & -x))
1272 while ((x >>= 1) != 0)
1277 static bfd_reloc_status_type
1278 hppa_som_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1279 arelent *reloc_entry,
1280 asymbol *symbol_in ATTRIBUTE_UNUSED,
1281 void *data ATTRIBUTE_UNUSED,
1282 asection *input_section,
1284 char **error_message ATTRIBUTE_UNUSED)
1287 reloc_entry->address += input_section->output_offset;
1289 return bfd_reloc_ok;
1292 /* Given a generic HPPA relocation type, the instruction format,
1293 and a field selector, return one or more appropriate SOM relocations. */
1296 hppa_som_gen_reloc_type (bfd *abfd,
1299 enum hppa_reloc_field_selector_type_alt field,
1303 int *final_type, **final_types;
1305 final_types = bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1306 final_type = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1307 if (!final_types || !final_type)
1310 /* The field selector may require additional relocations to be
1311 generated. It's impossible to know at this moment if additional
1312 relocations will be needed, so we make them. The code to actually
1313 write the relocation/fixup stream is responsible for removing
1314 any redundant relocations. */
1321 final_types[0] = final_type;
1322 final_types[1] = NULL;
1323 final_types[2] = NULL;
1324 *final_type = base_type;
1330 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1331 if (!final_types[0])
1333 if (field == e_tsel)
1334 *final_types[0] = R_FSEL;
1335 else if (field == e_ltsel)
1336 *final_types[0] = R_LSEL;
1338 *final_types[0] = R_RSEL;
1339 final_types[1] = final_type;
1340 final_types[2] = NULL;
1341 *final_type = base_type;
1346 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1347 if (!final_types[0])
1349 *final_types[0] = R_S_MODE;
1350 final_types[1] = final_type;
1351 final_types[2] = NULL;
1352 *final_type = base_type;
1357 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1358 if (!final_types[0])
1360 *final_types[0] = R_N_MODE;
1361 final_types[1] = final_type;
1362 final_types[2] = NULL;
1363 *final_type = base_type;
1368 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1369 if (!final_types[0])
1371 *final_types[0] = R_D_MODE;
1372 final_types[1] = final_type;
1373 final_types[2] = NULL;
1374 *final_type = base_type;
1379 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1380 if (!final_types[0])
1382 *final_types[0] = R_R_MODE;
1383 final_types[1] = final_type;
1384 final_types[2] = NULL;
1385 *final_type = base_type;
1389 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1390 if (!final_types[0])
1392 *final_types[0] = R_N1SEL;
1393 final_types[1] = final_type;
1394 final_types[2] = NULL;
1395 *final_type = base_type;
1400 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1401 if (!final_types[0])
1403 *final_types[0] = R_N0SEL;
1404 final_types[1] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1405 if (!final_types[1])
1407 if (field == e_nlsel)
1408 *final_types[1] = R_N_MODE;
1410 *final_types[1] = R_R_MODE;
1411 final_types[2] = final_type;
1412 final_types[3] = NULL;
1413 *final_type = base_type;
1416 /* FIXME: These two field selectors are not currently supported. */
1425 /* The difference of two symbols needs *very* special handling. */
1428 bfd_size_type amt = sizeof (int);
1430 final_types[0] = bfd_alloc (abfd, amt);
1431 final_types[1] = bfd_alloc (abfd, amt);
1432 final_types[2] = bfd_alloc (abfd, amt);
1433 final_types[3] = bfd_alloc (abfd, amt);
1434 if (!final_types[0] || !final_types[1] || !final_types[2])
1436 if (field == e_fsel)
1437 *final_types[0] = R_FSEL;
1438 else if (field == e_rsel)
1439 *final_types[0] = R_RSEL;
1440 else if (field == e_lsel)
1441 *final_types[0] = R_LSEL;
1442 *final_types[1] = R_COMP2;
1443 *final_types[2] = R_COMP2;
1444 *final_types[3] = R_COMP1;
1445 final_types[4] = final_type;
1447 *final_types[4] = R_DATA_EXPR;
1449 *final_types[4] = R_CODE_EXPR;
1450 final_types[5] = NULL;
1453 /* PLABELs get their own relocation type. */
1454 else if (field == e_psel
1456 || field == e_rpsel)
1458 /* A PLABEL relocation that has a size of 32 bits must
1459 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1461 *final_type = R_DATA_PLABEL;
1463 *final_type = R_CODE_PLABEL;
1466 else if (field == e_tsel
1468 || field == e_rtsel)
1469 *final_type = R_DLT_REL;
1470 /* A relocation in the data space is always a full 32bits. */
1471 else if (format == 32)
1473 *final_type = R_DATA_ONE_SYMBOL;
1475 /* If there's no SOM symbol type associated with this BFD
1476 symbol, then set the symbol type to ST_DATA.
1478 Only do this if the type is going to default later when
1479 we write the object file.
1481 This is done so that the linker never encounters an
1482 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1484 This allows the compiler to generate exception handling
1487 Note that one day we may need to also emit BEGIN_BRTAB and
1488 END_BRTAB to prevent the linker from optimizing away insns
1489 in exception handling regions. */
1490 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1491 && (sym->flags & BSF_SECTION_SYM) == 0
1492 && (sym->flags & BSF_FUNCTION) == 0
1493 && ! bfd_is_com_section (sym->section))
1494 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1499 /* More PLABEL special cases. */
1502 || field == e_rpsel)
1503 *final_type = R_DATA_PLABEL;
1504 else if (field == e_fsel && format == 32)
1505 *final_type = R_DATA_GPREL;
1508 case R_HPPA_COMPLEX:
1509 /* The difference of two symbols needs *very* special handling. */
1512 bfd_size_type amt = sizeof (int);
1514 final_types[0] = bfd_alloc (abfd, amt);
1515 final_types[1] = bfd_alloc (abfd, amt);
1516 final_types[2] = bfd_alloc (abfd, amt);
1517 final_types[3] = bfd_alloc (abfd, amt);
1518 if (!final_types[0] || !final_types[1] || !final_types[2])
1520 if (field == e_fsel)
1521 *final_types[0] = R_FSEL;
1522 else if (field == e_rsel)
1523 *final_types[0] = R_RSEL;
1524 else if (field == e_lsel)
1525 *final_types[0] = R_LSEL;
1526 *final_types[1] = R_COMP2;
1527 *final_types[2] = R_COMP2;
1528 *final_types[3] = R_COMP1;
1529 final_types[4] = final_type;
1531 *final_types[4] = R_DATA_EXPR;
1533 *final_types[4] = R_CODE_EXPR;
1534 final_types[5] = NULL;
1541 case R_HPPA_ABS_CALL:
1542 /* Right now we can default all these. */
1545 case R_HPPA_PCREL_CALL:
1547 #ifndef NO_PCREL_MODES
1548 /* If we have short and long pcrel modes, then generate the proper
1549 mode selector, then the pcrel relocation. Redundant selectors
1550 will be eliminated as the relocs are sized and emitted. */
1551 bfd_size_type amt = sizeof (int);
1553 final_types[0] = bfd_alloc (abfd, amt);
1554 if (!final_types[0])
1557 *final_types[0] = R_SHORT_PCREL_MODE;
1559 *final_types[0] = R_LONG_PCREL_MODE;
1560 final_types[1] = final_type;
1561 final_types[2] = NULL;
1562 *final_type = base_type;
1570 /* Return the address of the correct entry in the PA SOM relocation
1573 static reloc_howto_type *
1574 som_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1575 bfd_reloc_code_real_type code)
1577 if ((int) code < (int) R_NO_RELOCATION + 255)
1579 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1580 return &som_hppa_howto_table[(int) code];
1586 static reloc_howto_type *
1587 som_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1593 i < sizeof (som_hppa_howto_table) / sizeof (som_hppa_howto_table[0]);
1595 if (som_hppa_howto_table[i].name != NULL
1596 && strcasecmp (som_hppa_howto_table[i].name, r_name) == 0)
1597 return &som_hppa_howto_table[i];
1603 som_swap_clock_in (struct som_external_clock *src,
1604 struct som_clock *dst)
1606 dst->secs = bfd_getb32 (src->secs);
1607 dst->nanosecs = bfd_getb32 (src->nanosecs);
1611 som_swap_clock_out (struct som_clock *src,
1612 struct som_external_clock *dst)
1614 bfd_putb32 (src->secs, dst->secs);
1615 bfd_putb32 (src->nanosecs, dst->nanosecs);
1619 som_swap_header_in (struct som_external_header *src,
1620 struct som_header *dst)
1622 dst->system_id = bfd_getb16 (src->system_id);
1623 dst->a_magic = bfd_getb16 (src->a_magic);
1624 dst->version_id = bfd_getb32 (src->version_id);
1625 som_swap_clock_in (&src->file_time, &dst->file_time);
1626 dst->entry_space = bfd_getb32 (src->entry_space);
1627 dst->entry_subspace = bfd_getb32 (src->entry_subspace);
1628 dst->entry_offset = bfd_getb32 (src->entry_offset);
1629 dst->aux_header_location = bfd_getb32 (src->aux_header_location);
1630 dst->aux_header_size = bfd_getb32 (src->aux_header_size);
1631 dst->som_length = bfd_getb32 (src->som_length);
1632 dst->presumed_dp = bfd_getb32 (src->presumed_dp);
1633 dst->space_location = bfd_getb32 (src->space_location);
1634 dst->space_total = bfd_getb32 (src->space_total);
1635 dst->subspace_location = bfd_getb32 (src->subspace_location);
1636 dst->subspace_total = bfd_getb32 (src->subspace_total);
1637 dst->loader_fixup_location = bfd_getb32 (src->loader_fixup_location);
1638 dst->loader_fixup_total = bfd_getb32 (src->loader_fixup_total);
1639 dst->space_strings_location = bfd_getb32 (src->space_strings_location);
1640 dst->space_strings_size = bfd_getb32 (src->space_strings_size);
1641 dst->init_array_location = bfd_getb32 (src->init_array_location);
1642 dst->init_array_total = bfd_getb32 (src->init_array_total);
1643 dst->compiler_location = bfd_getb32 (src->compiler_location);
1644 dst->compiler_total = bfd_getb32 (src->compiler_total);
1645 dst->symbol_location = bfd_getb32 (src->symbol_location);
1646 dst->symbol_total = bfd_getb32 (src->symbol_total);
1647 dst->fixup_request_location = bfd_getb32 (src->fixup_request_location);
1648 dst->fixup_request_total = bfd_getb32 (src->fixup_request_total);
1649 dst->symbol_strings_location = bfd_getb32 (src->symbol_strings_location);
1650 dst->symbol_strings_size = bfd_getb32 (src->symbol_strings_size);
1651 dst->unloadable_sp_location = bfd_getb32 (src->unloadable_sp_location);
1652 dst->unloadable_sp_size = bfd_getb32 (src->unloadable_sp_size);
1653 dst->checksum = bfd_getb32 (src->checksum);
1657 som_swap_header_out (struct som_header *src,
1658 struct som_external_header *dst)
1660 bfd_putb16 (src->system_id, dst->system_id);
1661 bfd_putb16 (src->a_magic, dst->a_magic);
1662 bfd_putb32 (src->version_id, dst->version_id);
1663 som_swap_clock_out (&src->file_time, &dst->file_time);
1664 bfd_putb32 (src->entry_space, dst->entry_space);
1665 bfd_putb32 (src->entry_subspace, dst->entry_subspace);
1666 bfd_putb32 (src->entry_offset, dst->entry_offset);
1667 bfd_putb32 (src->aux_header_location, dst->aux_header_location);
1668 bfd_putb32 (src->aux_header_size, dst->aux_header_size);
1669 bfd_putb32 (src->som_length, dst->som_length);
1670 bfd_putb32 (src->presumed_dp, dst->presumed_dp);
1671 bfd_putb32 (src->space_location, dst->space_location);
1672 bfd_putb32 (src->space_total, dst->space_total);
1673 bfd_putb32 (src->subspace_location, dst->subspace_location);
1674 bfd_putb32 (src->subspace_total, dst->subspace_total);
1675 bfd_putb32 (src->loader_fixup_location, dst->loader_fixup_location);
1676 bfd_putb32 (src->loader_fixup_total, dst->loader_fixup_total);
1677 bfd_putb32 (src->space_strings_location, dst->space_strings_location);
1678 bfd_putb32 (src->space_strings_size, dst->space_strings_size);
1679 bfd_putb32 (src->init_array_location, dst->init_array_location);
1680 bfd_putb32 (src->init_array_total, dst->init_array_total);
1681 bfd_putb32 (src->compiler_location, dst->compiler_location);
1682 bfd_putb32 (src->compiler_total, dst->compiler_total);
1683 bfd_putb32 (src->symbol_location, dst->symbol_location);
1684 bfd_putb32 (src->symbol_total, dst->symbol_total);
1685 bfd_putb32 (src->fixup_request_location, dst->fixup_request_location);
1686 bfd_putb32 (src->fixup_request_total, dst->fixup_request_total);
1687 bfd_putb32 (src->symbol_strings_location, dst->symbol_strings_location);
1688 bfd_putb32 (src->symbol_strings_size, dst->symbol_strings_size);
1689 bfd_putb32 (src->unloadable_sp_location, dst->unloadable_sp_location);
1690 bfd_putb32 (src->unloadable_sp_size, dst->unloadable_sp_size);
1691 bfd_putb32 (src->checksum, dst->checksum);
1695 som_swap_space_dictionary_in (struct som_external_space_dictionary_record *src,
1696 struct som_space_dictionary_record *dst)
1700 dst->name = bfd_getb32 (src->name);
1701 flags = bfd_getb32 (src->flags);
1702 dst->is_loadable = (flags & SOM_SPACE_IS_LOADABLE) != 0;
1703 dst->is_defined = (flags & SOM_SPACE_IS_DEFINED) != 0;
1704 dst->is_private = (flags & SOM_SPACE_IS_PRIVATE) != 0;
1705 dst->has_intermediate_code = (flags & SOM_SPACE_HAS_INTERMEDIATE_CODE) != 0;
1706 dst->is_tspecific = (flags & SOM_SPACE_IS_TSPECIFIC) != 0;
1708 dst->sort_key = (flags >> SOM_SPACE_SORT_KEY_SH) & SOM_SPACE_SORT_KEY_MASK;
1710 dst->space_number = bfd_getb32 (src->space_number);
1711 dst->subspace_index = bfd_getb32 (src->subspace_index);
1712 dst->subspace_quantity = bfd_getb32 (src->subspace_quantity);
1713 dst->loader_fix_index = bfd_getb32 (src->loader_fix_index);
1714 dst->loader_fix_quantity = bfd_getb32 (src->loader_fix_quantity);
1715 dst->init_pointer_index = bfd_getb32 (src->init_pointer_index);
1716 dst->init_pointer_quantity = bfd_getb32 (src->init_pointer_quantity);
1720 som_swap_space_dictionary_out (struct som_space_dictionary_record *src,
1721 struct som_external_space_dictionary_record *dst)
1725 bfd_putb32 (src->name, dst->name);
1728 if (src->is_loadable)
1729 flags |= SOM_SPACE_IS_LOADABLE;
1730 if (src->is_defined)
1731 flags |= SOM_SPACE_IS_DEFINED;
1732 if (src->is_private)
1733 flags |= SOM_SPACE_IS_PRIVATE;
1734 if (src->has_intermediate_code)
1735 flags |= SOM_SPACE_HAS_INTERMEDIATE_CODE;
1736 if (src->is_tspecific)
1737 flags |= SOM_SPACE_IS_TSPECIFIC;
1738 flags |= (src->sort_key & SOM_SPACE_SORT_KEY_MASK) << SOM_SPACE_SORT_KEY_SH;
1739 bfd_putb32 (flags, dst->flags);
1740 bfd_putb32 (src->space_number, dst->space_number);
1741 bfd_putb32 (src->subspace_index, dst->subspace_index);
1742 bfd_putb32 (src->subspace_quantity, dst->subspace_quantity);
1743 bfd_putb32 (src->loader_fix_index, dst->loader_fix_index);
1744 bfd_putb32 (src->loader_fix_quantity, dst->loader_fix_quantity);
1745 bfd_putb32 (src->init_pointer_index, dst->init_pointer_index);
1746 bfd_putb32 (src->init_pointer_quantity, dst->init_pointer_quantity);
1750 som_swap_subspace_dictionary_in
1751 (struct som_external_subspace_dictionary_record *src,
1752 struct som_subspace_dictionary_record *dst)
1755 dst->space_index = bfd_getb32 (src->space_index);
1756 flags = bfd_getb32 (src->flags);
1757 dst->access_control_bits = (flags >> SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH)
1758 & SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK;
1759 dst->memory_resident = (flags & SOM_SUBSPACE_MEMORY_RESIDENT) != 0;
1760 dst->dup_common = (flags & SOM_SUBSPACE_DUP_COMMON) != 0;
1761 dst->is_common = (flags & SOM_SUBSPACE_IS_COMMON) != 0;
1762 dst->is_loadable = (flags & SOM_SUBSPACE_IS_LOADABLE) != 0;
1763 dst->quadrant = (flags >> SOM_SUBSPACE_QUADRANT_SH)
1764 & SOM_SUBSPACE_QUADRANT_MASK;
1765 dst->initially_frozen = (flags & SOM_SUBSPACE_INITIALLY_FROZEN) != 0;
1766 dst->is_first = (flags & SOM_SUBSPACE_IS_FIRST) != 0;
1767 dst->code_only = (flags & SOM_SUBSPACE_CODE_ONLY) != 0;
1768 dst->sort_key = (flags >> SOM_SUBSPACE_SORT_KEY_SH)
1769 & SOM_SUBSPACE_SORT_KEY_MASK;
1770 dst->replicate_init = (flags & SOM_SUBSPACE_REPLICATE_INIT) != 0;
1771 dst->continuation = (flags & SOM_SUBSPACE_CONTINUATION) != 0;
1772 dst->is_tspecific = (flags & SOM_SUBSPACE_IS_TSPECIFIC) != 0;
1773 dst->is_comdat = (flags & SOM_SUBSPACE_IS_COMDAT) != 0;
1775 dst->file_loc_init_value = bfd_getb32 (src->file_loc_init_value);
1776 dst->initialization_length = bfd_getb32 (src->initialization_length);
1777 dst->subspace_start = bfd_getb32 (src->subspace_start);
1778 dst->subspace_length = bfd_getb32 (src->subspace_length);
1779 dst->alignment = bfd_getb32 (src->alignment);
1780 dst->name = bfd_getb32 (src->name);
1781 dst->fixup_request_index = bfd_getb32 (src->fixup_request_index);
1782 dst->fixup_request_quantity = bfd_getb32 (src->fixup_request_quantity);
1786 som_swap_subspace_dictionary_record_out
1787 (struct som_subspace_dictionary_record *src,
1788 struct som_external_subspace_dictionary_record *dst)
1792 bfd_putb32 (src->space_index, dst->space_index);
1793 flags = (src->access_control_bits & SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK)
1794 << SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH;
1795 if (src->memory_resident)
1796 flags |= SOM_SUBSPACE_MEMORY_RESIDENT;
1797 if (src->dup_common)
1798 flags |= SOM_SUBSPACE_DUP_COMMON;
1800 flags |= SOM_SUBSPACE_IS_COMMON;
1801 if (src->is_loadable)
1802 flags |= SOM_SUBSPACE_IS_LOADABLE;
1803 flags |= (src->quadrant & SOM_SUBSPACE_QUADRANT_MASK)
1804 << SOM_SUBSPACE_QUADRANT_SH;
1805 if (src->initially_frozen)
1806 flags |= SOM_SUBSPACE_INITIALLY_FROZEN;
1808 flags |= SOM_SUBSPACE_IS_FIRST;
1810 flags |= SOM_SUBSPACE_CODE_ONLY;
1811 flags |= (src->sort_key & SOM_SUBSPACE_SORT_KEY_MASK)
1812 << SOM_SUBSPACE_SORT_KEY_SH;
1813 if (src->replicate_init)
1814 flags |= SOM_SUBSPACE_REPLICATE_INIT;
1815 if (src->continuation)
1816 flags |= SOM_SUBSPACE_CONTINUATION;
1817 if (src->is_tspecific)
1818 flags |= SOM_SUBSPACE_IS_TSPECIFIC;
1820 flags |= SOM_SUBSPACE_IS_COMDAT;
1821 bfd_putb32 (flags, dst->flags);
1822 bfd_putb32 (src->file_loc_init_value, dst->file_loc_init_value);
1823 bfd_putb32 (src->initialization_length, dst->initialization_length);
1824 bfd_putb32 (src->subspace_start, dst->subspace_start);
1825 bfd_putb32 (src->subspace_length, dst->subspace_length);
1826 bfd_putb32 (src->alignment, dst->alignment);
1827 bfd_putb32 (src->name, dst->name);
1828 bfd_putb32 (src->fixup_request_index, dst->fixup_request_index);
1829 bfd_putb32 (src->fixup_request_quantity, dst->fixup_request_quantity);
1833 som_swap_aux_id_in (struct som_external_aux_id *src,
1834 struct som_aux_id *dst)
1836 unsigned int flags = bfd_getb32 (src->flags);
1838 dst->mandatory = (flags & SOM_AUX_ID_MANDATORY) != 0;
1839 dst->copy = (flags & SOM_AUX_ID_COPY) != 0;
1840 dst->append = (flags & SOM_AUX_ID_APPEND) != 0;
1841 dst->ignore = (flags & SOM_AUX_ID_IGNORE) != 0;
1842 dst->type = (flags >> SOM_AUX_ID_TYPE_SH) & SOM_AUX_ID_TYPE_MASK;
1843 dst->length = bfd_getb32 (src->length);
1847 som_swap_aux_id_out (struct som_aux_id *src,
1848 struct som_external_aux_id *dst)
1850 unsigned int flags = 0;
1853 flags |= SOM_AUX_ID_MANDATORY;
1855 flags |= SOM_AUX_ID_COPY;
1857 flags |= SOM_AUX_ID_APPEND;
1859 flags |= SOM_AUX_ID_IGNORE;
1860 flags |= (src->type & SOM_AUX_ID_TYPE_MASK) << SOM_AUX_ID_TYPE_SH;
1861 bfd_putb32 (flags, dst->flags);
1862 bfd_putb32 (src->length, dst->length);
1866 som_swap_string_auxhdr_out (struct som_string_auxhdr *src,
1867 struct som_external_string_auxhdr *dst)
1869 som_swap_aux_id_out (&src->header_id, &dst->header_id);
1870 bfd_putb32 (src->string_length, dst->string_length);
1874 som_swap_compilation_unit_out (struct som_compilation_unit *src,
1875 struct som_external_compilation_unit *dst)
1877 bfd_putb32 (src->name.strx, dst->name);
1878 bfd_putb32 (src->language_name.strx, dst->language_name);
1879 bfd_putb32 (src->product_id.strx, dst->product_id);
1880 bfd_putb32 (src->version_id.strx, dst->version_id);
1881 bfd_putb32 (src->flags, dst->flags);
1882 som_swap_clock_out (&src->compile_time, &dst->compile_time);
1883 som_swap_clock_out (&src->source_time, &dst->source_time);
1887 som_swap_exec_auxhdr_in (struct som_external_exec_auxhdr *src,
1888 struct som_exec_auxhdr *dst)
1890 som_swap_aux_id_in (&src->som_auxhdr, &dst->som_auxhdr);
1891 dst->exec_tsize = bfd_getb32 (src->exec_tsize);
1892 dst->exec_tmem = bfd_getb32 (src->exec_tmem);
1893 dst->exec_tfile = bfd_getb32 (src->exec_tfile);
1894 dst->exec_dsize = bfd_getb32 (src->exec_dsize);
1895 dst->exec_dmem = bfd_getb32 (src->exec_dmem);
1896 dst->exec_dfile = bfd_getb32 (src->exec_dfile);
1897 dst->exec_bsize = bfd_getb32 (src->exec_bsize);
1898 dst->exec_entry = bfd_getb32 (src->exec_entry);
1899 dst->exec_flags = bfd_getb32 (src->exec_flags);
1900 dst->exec_bfill = bfd_getb32 (src->exec_bfill);
1904 som_swap_exec_auxhdr_out (struct som_exec_auxhdr *src,
1905 struct som_external_exec_auxhdr *dst)
1907 som_swap_aux_id_out (&src->som_auxhdr, &dst->som_auxhdr);
1908 bfd_putb32 (src->exec_tsize, dst->exec_tsize);
1909 bfd_putb32 (src->exec_tmem, dst->exec_tmem);
1910 bfd_putb32 (src->exec_tfile, dst->exec_tfile);
1911 bfd_putb32 (src->exec_dsize, dst->exec_dsize);
1912 bfd_putb32 (src->exec_dmem, dst->exec_dmem);
1913 bfd_putb32 (src->exec_dfile, dst->exec_dfile);
1914 bfd_putb32 (src->exec_bsize, dst->exec_bsize);
1915 bfd_putb32 (src->exec_entry, dst->exec_entry);
1916 bfd_putb32 (src->exec_flags, dst->exec_flags);
1917 bfd_putb32 (src->exec_bfill, dst->exec_bfill);
1921 som_swap_lst_header_in (struct som_external_lst_header *src,
1922 struct som_lst_header *dst)
1924 dst->system_id = bfd_getb16 (src->system_id);
1925 dst->a_magic = bfd_getb16 (src->a_magic);
1926 dst->version_id = bfd_getb32 (src->version_id);
1927 som_swap_clock_in (&src->file_time, &dst->file_time);
1928 dst->hash_loc = bfd_getb32 (src->hash_loc);
1929 dst->hash_size = bfd_getb32 (src->hash_size);
1930 dst->module_count = bfd_getb32 (src->module_count);
1931 dst->module_limit = bfd_getb32 (src->module_limit);
1932 dst->dir_loc = bfd_getb32 (src->dir_loc);
1933 dst->export_loc = bfd_getb32 (src->export_loc);
1934 dst->export_count = bfd_getb32 (src->export_count);
1935 dst->import_loc = bfd_getb32 (src->import_loc);
1936 dst->aux_loc = bfd_getb32 (src->aux_loc);
1937 dst->aux_size = bfd_getb32 (src->aux_size);
1938 dst->string_loc = bfd_getb32 (src->string_loc);
1939 dst->string_size = bfd_getb32 (src->string_size);
1940 dst->free_list = bfd_getb32 (src->free_list);
1941 dst->file_end = bfd_getb32 (src->file_end);
1942 dst->checksum = bfd_getb32 (src->checksum);
1945 /* Perform some initialization for an object. Save results of this
1946 initialization in the BFD. */
1948 static const bfd_target *
1949 som_object_setup (bfd *abfd,
1950 struct som_header *file_hdrp,
1951 struct som_exec_auxhdr *aux_hdrp,
1952 unsigned long current_offset)
1956 /* som_mkobject will set bfd_error if som_mkobject fails. */
1957 if (! som_mkobject (abfd))
1960 /* Set BFD flags based on what information is available in the SOM. */
1961 abfd->flags = BFD_NO_FLAGS;
1962 if (file_hdrp->symbol_total)
1963 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1965 switch (file_hdrp->a_magic)
1968 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1971 abfd->flags |= (WP_TEXT | EXEC_P);
1974 abfd->flags |= (EXEC_P);
1977 abfd->flags |= HAS_RELOC;
1985 abfd->flags |= DYNAMIC;
1992 /* Save the auxiliary header. */
1993 obj_som_exec_hdr (abfd) = aux_hdrp;
1995 /* Allocate space to hold the saved exec header information. */
1996 obj_som_exec_data (abfd) = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
1997 if (obj_som_exec_data (abfd) == NULL)
2000 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
2002 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
2003 apparently the latest HPUX linker is using NEW_VERSION_ID now.
2005 It's about time, OSF has used the new id since at least 1992;
2006 HPUX didn't start till nearly 1995!.
2008 The new approach examines the entry field for an executable. If
2009 it is not 4-byte aligned then it's not a proper code address and
2010 we guess it's really the executable flags. For a main program,
2011 we also consider zero to be indicative of a buggy linker, since
2012 that is not a valid entry point. The entry point for a shared
2013 library, however, can be zero so we do not consider that to be
2014 indicative of a buggy linker. */
2019 for (section = abfd->sections; section; section = section->next)
2023 if ((section->flags & SEC_CODE) == 0)
2025 entry = aux_hdrp->exec_entry + aux_hdrp->exec_tmem;
2026 if (entry >= section->vma
2027 && entry < section->vma + section->size)
2030 if ((aux_hdrp->exec_entry == 0 && !(abfd->flags & DYNAMIC))
2031 || (aux_hdrp->exec_entry & 0x3) != 0
2034 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
2035 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
2039 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
2040 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
2044 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
2046 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
2047 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
2049 /* Initialize the saved symbol table and string table to NULL.
2050 Save important offsets and sizes from the SOM header into
2052 obj_som_stringtab (abfd) = NULL;
2053 obj_som_symtab (abfd) = NULL;
2054 obj_som_sorted_syms (abfd) = NULL;
2055 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
2056 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
2057 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
2059 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
2061 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
2066 /* Convert all of the space and subspace info into BFD sections. Each space
2067 contains a number of subspaces, which in turn describe the mapping between
2068 regions of the exec file, and the address space that the program runs in.
2069 BFD sections which correspond to spaces will overlap the sections for the
2070 associated subspaces. */
2073 setup_sections (bfd *abfd,
2074 struct som_header *file_hdr,
2075 unsigned long current_offset)
2077 char *space_strings;
2078 unsigned int space_index, i;
2079 unsigned int total_subspaces = 0;
2080 asection **subspace_sections = NULL;
2084 /* First, read in space names. */
2085 amt = file_hdr->space_strings_size;
2086 space_strings = bfd_malloc (amt + 1);
2087 if (space_strings == NULL && amt != 0)
2090 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
2093 if (bfd_bread (space_strings, amt, abfd) != amt)
2095 /* Make sure that the string table is NUL terminated. */
2096 space_strings[amt] = 0;
2098 /* Loop over all of the space dictionaries, building up sections. */
2099 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
2101 struct som_space_dictionary_record space;
2102 struct som_external_space_dictionary_record ext_space;
2104 struct som_external_subspace_dictionary_record ext_subspace;
2105 struct som_subspace_dictionary_record subspace, save_subspace;
2106 unsigned int subspace_index;
2107 asection *space_asect;
2108 bfd_size_type space_size = 0;
2111 /* Read the space dictionary element. */
2113 (current_offset + file_hdr->space_location
2114 + space_index * sizeof (ext_space)),
2117 amt = sizeof ext_space;
2118 if (bfd_bread (&ext_space, amt, abfd) != amt)
2121 som_swap_space_dictionary_in (&ext_space, &space);
2123 /* Setup the space name string. */
2124 if (space.name >= file_hdr->space_strings_size)
2127 space_name = space.name + space_strings;
2129 /* Make a section out of it. */
2130 amt = strlen (space_name) + 1;
2131 newname = bfd_alloc (abfd, amt);
2134 strcpy (newname, space_name);
2136 space_asect = bfd_make_section_anyway (abfd, newname);
2140 if (space.is_loadable == 0)
2141 space_asect->flags |= SEC_DEBUGGING;
2143 /* Set up all the attributes for the space. */
2144 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
2145 space.is_private, space.sort_key,
2146 space.space_number))
2149 /* If the space has no subspaces, then we're done. */
2150 if (space.subspace_quantity == 0)
2153 /* Now, read in the first subspace for this space. */
2155 (current_offset + file_hdr->subspace_location
2156 + space.subspace_index * sizeof ext_subspace),
2159 amt = sizeof ext_subspace;
2160 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
2162 /* Seek back to the start of the subspaces for loop below. */
2164 (current_offset + file_hdr->subspace_location
2165 + space.subspace_index * sizeof ext_subspace),
2169 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2171 /* Setup the start address and file loc from the first subspace
2173 space_asect->vma = subspace.subspace_start;
2174 space_asect->filepos = subspace.file_loc_init_value + current_offset;
2175 space_asect->alignment_power = exact_log2 (subspace.alignment);
2176 if (space_asect->alignment_power == (unsigned) -1)
2179 /* Initialize save_subspace so we can reliably determine if this
2180 loop placed any useful values into it. */
2181 memset (&save_subspace, 0, sizeof (save_subspace));
2183 /* Loop over the rest of the subspaces, building up more sections. */
2184 for (subspace_index = 0; subspace_index < space.subspace_quantity;
2187 asection *subspace_asect;
2188 char *subspace_name;
2190 /* Read in the next subspace. */
2191 amt = sizeof ext_subspace;
2192 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
2195 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2197 /* Setup the subspace name string. */
2198 subspace_name = subspace.name + space_strings;
2200 amt = strlen (subspace_name) + 1;
2201 newname = bfd_alloc (abfd, amt);
2204 strcpy (newname, subspace_name);
2206 /* Make a section out of this subspace. */
2207 subspace_asect = bfd_make_section_anyway (abfd, newname);
2208 if (!subspace_asect)
2211 /* Store private information about the section. */
2212 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
2213 subspace.access_control_bits,
2218 subspace.dup_common))
2221 /* Keep an easy mapping between subspaces and sections.
2222 Note we do not necessarily read the subspaces in the
2223 same order in which they appear in the object file.
2225 So to make the target index come out correctly, we
2226 store the location of the subspace header in target
2227 index, then sort using the location of the subspace
2228 header as the key. Then we can assign correct
2229 subspace indices. */
2231 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2233 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2234 by the access_control_bits in the subspace header. */
2235 switch (subspace.access_control_bits >> 4)
2237 /* Readonly data. */
2239 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2244 subspace_asect->flags |= SEC_DATA;
2247 /* Readonly code and the gateways.
2248 Gateways have other attributes which do not map
2249 into anything BFD knows about. */
2255 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2258 /* dynamic (writable) code. */
2260 subspace_asect->flags |= SEC_CODE;
2264 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
2265 subspace_asect->flags |= SEC_LINK_ONCE;
2267 if (subspace.subspace_length > 0)
2268 subspace_asect->flags |= SEC_HAS_CONTENTS;
2270 if (subspace.is_loadable)
2271 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2273 subspace_asect->flags |= SEC_DEBUGGING;
2275 if (subspace.code_only)
2276 subspace_asect->flags |= SEC_CODE;
2278 /* Both file_loc_init_value and initialization_length will
2279 be zero for a BSS like subspace. */
2280 if (subspace.file_loc_init_value == 0
2281 && subspace.initialization_length == 0)
2282 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2284 /* This subspace has relocations.
2285 The fixup_request_quantity is a byte count for the number of
2286 entries in the relocation stream; it is not the actual number
2287 of relocations in the subspace. */
2288 if (subspace.fixup_request_quantity != 0)
2290 subspace_asect->flags |= SEC_RELOC;
2291 subspace_asect->rel_filepos = subspace.fixup_request_index;
2292 som_section_data (subspace_asect)->reloc_size
2293 = subspace.fixup_request_quantity;
2294 /* We can not determine this yet. When we read in the
2295 relocation table the correct value will be filled in. */
2296 subspace_asect->reloc_count = (unsigned) -1;
2299 /* Update save_subspace if appropriate. */
2300 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2301 save_subspace = subspace;
2303 subspace_asect->vma = subspace.subspace_start;
2304 subspace_asect->size = subspace.subspace_length;
2305 subspace_asect->filepos = (subspace.file_loc_init_value
2307 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
2308 if (subspace_asect->alignment_power == (unsigned) -1)
2311 /* Keep track of the accumulated sizes of the sections. */
2312 space_size += subspace.subspace_length;
2315 /* This can happen for a .o which defines symbols in otherwise
2317 if (!save_subspace.file_loc_init_value)
2318 space_asect->size = 0;
2321 if (file_hdr->a_magic != RELOC_MAGIC)
2323 /* Setup the size for the space section based upon the info
2324 in the last subspace of the space. */
2325 space_asect->size = (save_subspace.subspace_start
2327 + save_subspace.subspace_length);
2331 /* The subspace_start field is not initialised in relocatable
2332 only objects, so it cannot be used for length calculations.
2333 Instead we use the space_size value which we have been
2334 accumulating. This isn't an accurate estimate since it
2335 ignores alignment and ordering issues. */
2336 space_asect->size = space_size;
2340 /* Now that we've read in all the subspace records, we need to assign
2341 a target index to each subspace. */
2342 amt = total_subspaces;
2343 amt *= sizeof (asection *);
2344 subspace_sections = bfd_malloc (amt);
2345 if (subspace_sections == NULL)
2348 for (i = 0, section = abfd->sections; section; section = section->next)
2350 if (!som_is_subspace (section))
2353 subspace_sections[i] = section;
2356 qsort (subspace_sections, total_subspaces,
2357 sizeof (asection *), compare_subspaces);
2359 /* subspace_sections is now sorted in the order in which the subspaces
2360 appear in the object file. Assign an index to each one now. */
2361 for (i = 0; i < total_subspaces; i++)
2362 subspace_sections[i]->target_index = i;
2364 if (space_strings != NULL)
2365 free (space_strings);
2367 if (subspace_sections != NULL)
2368 free (subspace_sections);
2373 if (space_strings != NULL)
2374 free (space_strings);
2376 if (subspace_sections != NULL)
2377 free (subspace_sections);
2382 /* Read in a SOM object and make it into a BFD. */
2384 static const bfd_target *
2385 som_object_p (bfd *abfd)
2387 struct som_external_header ext_file_hdr;
2388 struct som_header file_hdr;
2389 struct som_exec_auxhdr *aux_hdr_ptr = NULL;
2390 unsigned long current_offset = 0;
2391 struct som_external_lst_header ext_lst_header;
2392 struct som_external_som_entry ext_som_entry;
2395 #define ENTRY_SIZE sizeof (struct som_external_som_entry)
2397 amt = sizeof (struct som_external_header);
2398 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
2400 if (bfd_get_error () != bfd_error_system_call)
2401 bfd_set_error (bfd_error_wrong_format);
2405 som_swap_header_in (&ext_file_hdr, &file_hdr);
2407 if (!_PA_RISC_ID (file_hdr.system_id))
2409 bfd_set_error (bfd_error_wrong_format);
2413 switch (file_hdr.a_magic)
2421 #ifdef SHARED_MAGIC_CNX
2422 case SHARED_MAGIC_CNX:
2427 /* Read the lst header and determine where the SOM directory begins. */
2429 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2431 if (bfd_get_error () != bfd_error_system_call)
2432 bfd_set_error (bfd_error_wrong_format);
2436 amt = sizeof (struct som_external_lst_header);
2437 if (bfd_bread (&ext_lst_header, amt, abfd) != amt)
2439 if (bfd_get_error () != bfd_error_system_call)
2440 bfd_set_error (bfd_error_wrong_format);
2444 /* Position to and read the first directory entry. */
2445 loc = bfd_getb32 (ext_lst_header.dir_loc);
2446 if (bfd_seek (abfd, loc, SEEK_SET) != 0)
2448 if (bfd_get_error () != bfd_error_system_call)
2449 bfd_set_error (bfd_error_wrong_format);
2454 if (bfd_bread (&ext_som_entry, amt, abfd) != amt)
2456 if (bfd_get_error () != bfd_error_system_call)
2457 bfd_set_error (bfd_error_wrong_format);
2461 /* Now position to the first SOM. */
2462 current_offset = bfd_getb32 (ext_som_entry.location);
2463 if (bfd_seek (abfd, current_offset, SEEK_SET) != 0)
2465 if (bfd_get_error () != bfd_error_system_call)
2466 bfd_set_error (bfd_error_wrong_format);
2470 /* And finally, re-read the som header. */
2471 amt = sizeof (struct som_external_header);
2472 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
2474 if (bfd_get_error () != bfd_error_system_call)
2475 bfd_set_error (bfd_error_wrong_format);
2479 som_swap_header_in (&ext_file_hdr, &file_hdr);
2484 bfd_set_error (bfd_error_wrong_format);
2488 if (file_hdr.version_id != OLD_VERSION_ID
2489 && file_hdr.version_id != NEW_VERSION_ID)
2491 bfd_set_error (bfd_error_wrong_format);
2495 /* If the aux_header_size field in the file header is zero, then this
2496 object is an incomplete executable (a .o file). Do not try to read
2497 a non-existant auxiliary header. */
2498 if (file_hdr.aux_header_size != 0)
2500 struct som_external_exec_auxhdr ext_exec_auxhdr;
2502 aux_hdr_ptr = bfd_zalloc (abfd,
2503 (bfd_size_type) sizeof (*aux_hdr_ptr));
2504 if (aux_hdr_ptr == NULL)
2506 amt = sizeof (struct som_external_exec_auxhdr);
2507 if (bfd_bread (&ext_exec_auxhdr, amt, abfd) != amt)
2509 if (bfd_get_error () != bfd_error_system_call)
2510 bfd_set_error (bfd_error_wrong_format);
2513 som_swap_exec_auxhdr_in (&ext_exec_auxhdr, aux_hdr_ptr);
2516 if (!setup_sections (abfd, &file_hdr, current_offset))
2518 /* setup_sections does not bubble up a bfd error code. */
2519 bfd_set_error (bfd_error_bad_value);
2523 /* This appears to be a valid SOM object. Do some initialization. */
2524 return som_object_setup (abfd, &file_hdr, aux_hdr_ptr, current_offset);
2527 /* Create a SOM object. */
2530 som_mkobject (bfd *abfd)
2532 /* Allocate memory to hold backend information. */
2533 abfd->tdata.som_data = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2534 if (abfd->tdata.som_data == NULL)
2539 /* Initialize some information in the file header. This routine makes
2540 not attempt at doing the right thing for a full executable; it
2541 is only meant to handle relocatable objects. */
2544 som_prep_headers (bfd *abfd)
2546 struct som_header *file_hdr;
2548 bfd_size_type amt = sizeof (struct som_header);
2550 /* Make and attach a file header to the BFD. */
2551 file_hdr = bfd_zalloc (abfd, amt);
2552 if (file_hdr == NULL)
2554 obj_som_file_hdr (abfd) = file_hdr;
2556 if (abfd->flags & (EXEC_P | DYNAMIC))
2558 /* Make and attach an exec header to the BFD. */
2559 amt = sizeof (struct som_exec_auxhdr);
2560 obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
2561 if (obj_som_exec_hdr (abfd) == NULL)
2564 if (abfd->flags & D_PAGED)
2565 file_hdr->a_magic = DEMAND_MAGIC;
2566 else if (abfd->flags & WP_TEXT)
2567 file_hdr->a_magic = SHARE_MAGIC;
2569 else if (abfd->flags & DYNAMIC)
2570 file_hdr->a_magic = SHL_MAGIC;
2573 file_hdr->a_magic = EXEC_MAGIC;
2576 file_hdr->a_magic = RELOC_MAGIC;
2578 /* These fields are optional, and embedding timestamps is not always
2579 a wise thing to do, it makes comparing objects during a multi-stage
2580 bootstrap difficult. */
2581 file_hdr->file_time.secs = 0;
2582 file_hdr->file_time.nanosecs = 0;
2584 file_hdr->entry_space = 0;
2585 file_hdr->entry_subspace = 0;
2586 file_hdr->entry_offset = 0;
2587 file_hdr->presumed_dp = 0;
2589 /* Now iterate over the sections translating information from
2590 BFD sections to SOM spaces/subspaces. */
2591 for (section = abfd->sections; section != NULL; section = section->next)
2593 /* Ignore anything which has not been marked as a space or
2595 if (!som_is_space (section) && !som_is_subspace (section))
2598 if (som_is_space (section))
2600 /* Allocate space for the space dictionary. */
2601 amt = sizeof (struct som_space_dictionary_record);
2602 som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
2603 if (som_section_data (section)->space_dict == NULL)
2605 /* Set space attributes. Note most attributes of SOM spaces
2606 are set based on the subspaces it contains. */
2607 som_section_data (section)->space_dict->loader_fix_index = -1;
2608 som_section_data (section)->space_dict->init_pointer_index = -1;
2610 /* Set more attributes that were stuffed away in private data. */
2611 som_section_data (section)->space_dict->sort_key =
2612 som_section_data (section)->copy_data->sort_key;
2613 som_section_data (section)->space_dict->is_defined =
2614 som_section_data (section)->copy_data->is_defined;
2615 som_section_data (section)->space_dict->is_private =
2616 som_section_data (section)->copy_data->is_private;
2617 som_section_data (section)->space_dict->space_number =
2618 som_section_data (section)->copy_data->space_number;
2622 /* Allocate space for the subspace dictionary. */
2623 amt = sizeof (struct som_subspace_dictionary_record);
2624 som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
2625 if (som_section_data (section)->subspace_dict == NULL)
2628 /* Set subspace attributes. Basic stuff is done here, additional
2629 attributes are filled in later as more information becomes
2631 if (section->flags & SEC_ALLOC)
2632 som_section_data (section)->subspace_dict->is_loadable = 1;
2634 if (section->flags & SEC_CODE)
2635 som_section_data (section)->subspace_dict->code_only = 1;
2637 som_section_data (section)->subspace_dict->subspace_start =
2639 som_section_data (section)->subspace_dict->subspace_length =
2641 som_section_data (section)->subspace_dict->initialization_length =
2643 som_section_data (section)->subspace_dict->alignment =
2644 1 << section->alignment_power;
2646 /* Set more attributes that were stuffed away in private data. */
2647 som_section_data (section)->subspace_dict->sort_key =
2648 som_section_data (section)->copy_data->sort_key;
2649 som_section_data (section)->subspace_dict->access_control_bits =
2650 som_section_data (section)->copy_data->access_control_bits;
2651 som_section_data (section)->subspace_dict->quadrant =
2652 som_section_data (section)->copy_data->quadrant;
2653 som_section_data (section)->subspace_dict->is_comdat =
2654 som_section_data (section)->copy_data->is_comdat;
2655 som_section_data (section)->subspace_dict->is_common =
2656 som_section_data (section)->copy_data->is_common;
2657 som_section_data (section)->subspace_dict->dup_common =
2658 som_section_data (section)->copy_data->dup_common;
2664 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2667 som_is_space (asection *section)
2669 /* If no copy data is available, then it's neither a space nor a
2671 if (som_section_data (section)->copy_data == NULL)
2674 /* If the containing space isn't the same as the given section,
2675 then this isn't a space. */
2676 if (som_section_data (section)->copy_data->container != section
2677 && (som_section_data (section)->copy_data->container->output_section
2681 /* OK. Must be a space. */
2685 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2688 som_is_subspace (asection *section)
2690 /* If no copy data is available, then it's neither a space nor a
2692 if (som_section_data (section)->copy_data == NULL)
2695 /* If the containing space is the same as the given section,
2696 then this isn't a subspace. */
2697 if (som_section_data (section)->copy_data->container == section
2698 || (som_section_data (section)->copy_data->container->output_section
2702 /* OK. Must be a subspace. */
2706 /* Return TRUE if the given space contains the given subspace. It
2707 is safe to assume space really is a space, and subspace really
2711 som_is_container (asection *space, asection *subspace)
2713 return (som_section_data (subspace)->copy_data->container == space)
2714 || (som_section_data (subspace)->copy_data->container->output_section
2718 /* Count and return the number of spaces attached to the given BFD. */
2720 static unsigned long
2721 som_count_spaces (bfd *abfd)
2726 for (section = abfd->sections; section != NULL; section = section->next)
2727 count += som_is_space (section);
2732 /* Count the number of subspaces attached to the given BFD. */
2734 static unsigned long
2735 som_count_subspaces (bfd *abfd)
2740 for (section = abfd->sections; section != NULL; section = section->next)
2741 count += som_is_subspace (section);
2746 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2748 We desire symbols to be ordered starting with the symbol with the
2749 highest relocation count down to the symbol with the lowest relocation
2750 count. Doing so compacts the relocation stream. */
2753 compare_syms (const void *arg1, const void *arg2)
2755 asymbol **sym1 = (asymbol **) arg1;
2756 asymbol **sym2 = (asymbol **) arg2;
2757 unsigned int count1, count2;
2759 /* Get relocation count for each symbol. Note that the count
2760 is stored in the udata pointer for section symbols! */
2761 if ((*sym1)->flags & BSF_SECTION_SYM)
2762 count1 = (*sym1)->udata.i;
2764 count1 = som_symbol_data (*sym1)->reloc_count;
2766 if ((*sym2)->flags & BSF_SECTION_SYM)
2767 count2 = (*sym2)->udata.i;
2769 count2 = som_symbol_data (*sym2)->reloc_count;
2771 /* Return the appropriate value. */
2772 if (count1 < count2)
2774 else if (count1 > count2)
2779 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2783 compare_subspaces (const void *arg1, const void *arg2)
2785 asection **subspace1 = (asection **) arg1;
2786 asection **subspace2 = (asection **) arg2;
2788 if ((*subspace1)->target_index < (*subspace2)->target_index)
2790 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2796 /* Perform various work in preparation for emitting the fixup stream. */
2799 som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
2803 asymbol **sorted_syms;
2806 /* Most SOM relocations involving a symbol have a length which is
2807 dependent on the index of the symbol. So symbols which are
2808 used often in relocations should have a small index. */
2810 /* First initialize the counters for each symbol. */
2811 for (i = 0; i < num_syms; i++)
2813 /* Handle a section symbol; these have no pointers back to the
2814 SOM symbol info. So we just use the udata field to hold the
2815 relocation count. */
2816 if (som_symbol_data (syms[i]) == NULL
2817 || syms[i]->flags & BSF_SECTION_SYM)
2819 syms[i]->flags |= BSF_SECTION_SYM;
2820 syms[i]->udata.i = 0;
2823 som_symbol_data (syms[i])->reloc_count = 0;
2826 /* Now that the counters are initialized, make a weighted count
2827 of how often a given symbol is used in a relocation. */
2828 for (section = abfd->sections; section != NULL; section = section->next)
2832 /* Does this section have any relocations? */
2833 if ((int) section->reloc_count <= 0)
2836 /* Walk through each relocation for this section. */
2837 for (j = 1; j < (int) section->reloc_count; j++)
2839 arelent *reloc = section->orelocation[j];
2842 /* A relocation against a symbol in the *ABS* section really
2843 does not have a symbol. Likewise if the symbol isn't associated
2844 with any section. */
2845 if (reloc->sym_ptr_ptr == NULL
2846 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2849 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2850 and R_CODE_ONE_SYMBOL relocations to come first. These
2851 two relocations have single byte versions if the symbol
2852 index is very small. */
2853 if (reloc->howto->type == R_DP_RELATIVE
2854 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2859 /* Handle section symbols by storing the count in the udata
2860 field. It will not be used and the count is very important
2861 for these symbols. */
2862 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2864 (*reloc->sym_ptr_ptr)->udata.i =
2865 (*reloc->sym_ptr_ptr)->udata.i + scale;
2869 /* A normal symbol. Increment the count. */
2870 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2874 /* Sort a copy of the symbol table, rather than the canonical
2875 output symbol table. */
2877 amt *= sizeof (asymbol *);
2878 sorted_syms = bfd_zalloc (abfd, amt);
2879 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2880 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2881 obj_som_sorted_syms (abfd) = sorted_syms;
2883 /* Compute the symbol indexes, they will be needed by the relocation
2885 for (i = 0; i < num_syms; i++)
2887 /* A section symbol. Again, there is no pointer to backend symbol
2888 information, so we reuse the udata field again. */
2889 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2890 sorted_syms[i]->udata.i = i;
2892 som_symbol_data (sorted_syms[i])->index = i;
2897 som_write_fixups (bfd *abfd,
2898 unsigned long current_offset,
2899 unsigned int *total_reloc_sizep)
2902 /* Chunk of memory that we can use as buffer space, then throw
2904 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2906 unsigned int total_reloc_size = 0;
2907 unsigned int subspace_reloc_size = 0;
2908 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2909 asection *section = abfd->sections;
2912 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2915 /* All the fixups for a particular subspace are emitted in a single
2916 stream. All the subspaces for a particular space are emitted
2919 So, to get all the locations correct one must iterate through all the
2920 spaces, for each space iterate through its subspaces and output a
2922 for (i = 0; i < num_spaces; i++)
2924 asection *subsection;
2927 while (!som_is_space (section))
2928 section = section->next;
2930 /* Now iterate through each of its subspaces. */
2931 for (subsection = abfd->sections;
2933 subsection = subsection->next)
2936 unsigned int current_rounding_mode;
2937 #ifndef NO_PCREL_MODES
2938 unsigned int current_call_mode;
2941 /* Find a subspace of this space. */
2942 if (!som_is_subspace (subsection)
2943 || !som_is_container (section, subsection))
2946 /* If this subspace does not have real data, then we are
2947 finished with it. */
2948 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2950 som_section_data (subsection)->subspace_dict->fixup_request_index
2955 /* This subspace has some relocations. Put the relocation stream
2956 index into the subspace record. */
2957 som_section_data (subsection)->subspace_dict->fixup_request_index
2960 /* To make life easier start over with a clean slate for
2961 each subspace. Seek to the start of the relocation stream
2962 for this subspace in preparation for writing out its fixup
2964 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2967 /* Buffer space has already been allocated. Just perform some
2968 initialization here. */
2970 subspace_reloc_size = 0;
2972 som_initialize_reloc_queue (reloc_queue);
2973 current_rounding_mode = R_N_MODE;
2974 #ifndef NO_PCREL_MODES
2975 current_call_mode = R_SHORT_PCREL_MODE;
2978 /* Translate each BFD relocation into one or more SOM
2980 for (j = 0; j < subsection->reloc_count; j++)
2982 arelent *bfd_reloc = subsection->orelocation[j];
2986 /* Get the symbol number. Remember it's stored in a
2987 special place for section symbols. */
2988 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2989 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2991 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2993 /* If there is not enough room for the next couple relocations,
2994 then dump the current buffer contents now. Also reinitialize
2995 the relocation queue.
2997 No single BFD relocation could ever translate into more
2998 than 100 bytes of SOM relocations (20bytes is probably the
2999 upper limit, but leave lots of space for growth). */
3000 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
3002 amt = p - tmp_space;
3003 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
3007 som_initialize_reloc_queue (reloc_queue);
3010 /* Emit R_NO_RELOCATION fixups to map any bytes which were
3012 skip = bfd_reloc->address - reloc_offset;
3013 p = som_reloc_skip (abfd, skip, p,
3014 &subspace_reloc_size, reloc_queue);
3016 /* Update reloc_offset for the next iteration.
3018 Many relocations do not consume input bytes. They
3019 are markers, or set state necessary to perform some
3020 later relocation. */
3021 switch (bfd_reloc->howto->type)
3041 #ifndef NO_PCREL_MODES
3042 case R_SHORT_PCREL_MODE:
3043 case R_LONG_PCREL_MODE:
3045 reloc_offset = bfd_reloc->address;
3049 reloc_offset = bfd_reloc->address + 4;
3053 /* Now the actual relocation we care about. */
3054 switch (bfd_reloc->howto->type)
3058 p = som_reloc_call (abfd, p, &subspace_reloc_size,
3059 bfd_reloc, sym_num, reloc_queue);
3062 case R_CODE_ONE_SYMBOL:
3064 /* Account for any addend. */
3065 if (bfd_reloc->addend)
3066 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3067 &subspace_reloc_size, reloc_queue);
3071 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
3072 subspace_reloc_size += 1;
3075 else if (sym_num < 0x100)
3077 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
3078 bfd_put_8 (abfd, sym_num, p + 1);
3079 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3082 else if (sym_num < 0x10000000)
3084 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
3085 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3086 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3087 p = try_prev_fixup (abfd, &subspace_reloc_size,
3095 /* Account for any addend. */
3096 if (bfd_reloc->addend)
3097 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3098 &subspace_reloc_size, reloc_queue);
3100 if (sym_num < 0x10000000)
3102 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3103 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3104 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3105 p = try_prev_fixup (abfd, &subspace_reloc_size,
3112 case R_DATA_ONE_SYMBOL:
3116 /* Account for any addend using R_DATA_OVERRIDE. */
3117 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
3118 && bfd_reloc->addend)
3119 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3120 &subspace_reloc_size, reloc_queue);
3122 if (sym_num < 0x100)
3124 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3125 bfd_put_8 (abfd, sym_num, p + 1);
3126 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3129 else if (sym_num < 0x10000000)
3131 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3132 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3133 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3134 p = try_prev_fixup (abfd, &subspace_reloc_size,
3144 arelent *tmp_reloc = NULL;
3145 bfd_put_8 (abfd, R_ENTRY, p);
3147 /* R_ENTRY relocations have 64 bits of associated
3148 data. Unfortunately the addend field of a bfd
3149 relocation is only 32 bits. So, we split up
3150 the 64bit unwind information and store part in
3151 the R_ENTRY relocation, and the rest in the R_EXIT
3153 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
3155 /* Find the next R_EXIT relocation. */
3156 for (tmp = j; tmp < subsection->reloc_count; tmp++)
3158 tmp_reloc = subsection->orelocation[tmp];
3159 if (tmp_reloc->howto->type == R_EXIT)
3163 if (tmp == subsection->reloc_count)
3166 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
3167 p = try_prev_fixup (abfd, &subspace_reloc_size,
3176 /* If this relocation requests the current rounding
3177 mode, then it is redundant. */
3178 if (bfd_reloc->howto->type != current_rounding_mode)
3180 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3181 subspace_reloc_size += 1;
3183 current_rounding_mode = bfd_reloc->howto->type;
3187 #ifndef NO_PCREL_MODES
3188 case R_LONG_PCREL_MODE:
3189 case R_SHORT_PCREL_MODE:
3190 if (bfd_reloc->howto->type != current_call_mode)
3192 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3193 subspace_reloc_size += 1;
3195 current_call_mode = bfd_reloc->howto->type;
3210 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3211 subspace_reloc_size += 1;
3216 /* The end of an exception handling region. The reloc's
3217 addend contains the offset of the exception handling
3219 if (bfd_reloc->addend == 0)
3220 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3221 else if (bfd_reloc->addend < 1024)
3223 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3224 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3225 p = try_prev_fixup (abfd, &subspace_reloc_size,
3230 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3231 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3232 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3233 p = try_prev_fixup (abfd, &subspace_reloc_size,
3239 /* The only time we generate R_COMP1, R_COMP2 and
3240 R_CODE_EXPR relocs is for the difference of two
3241 symbols. Hence we can cheat here. */
3242 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3243 bfd_put_8 (abfd, 0x44, p + 1);
3244 p = try_prev_fixup (abfd, &subspace_reloc_size,
3249 /* The only time we generate R_COMP1, R_COMP2 and
3250 R_CODE_EXPR relocs is for the difference of two
3251 symbols. Hence we can cheat here. */
3252 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3253 bfd_put_8 (abfd, 0x80, p + 1);
3254 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3255 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3256 p = try_prev_fixup (abfd, &subspace_reloc_size,
3262 /* The only time we generate R_COMP1, R_COMP2 and
3263 R_CODE_EXPR relocs is for the difference of two
3264 symbols. Hence we can cheat here. */
3265 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3266 subspace_reloc_size += 1;
3270 /* Put a "R_RESERVED" relocation in the stream if
3271 we hit something we do not understand. The linker
3272 will complain loudly if this ever happens. */
3274 bfd_put_8 (abfd, 0xff, p);
3275 subspace_reloc_size += 1;
3281 /* Last BFD relocation for a subspace has been processed.
3282 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3283 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
3284 p, &subspace_reloc_size, reloc_queue);
3286 /* Scribble out the relocations. */
3287 amt = p - tmp_space;
3288 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
3292 total_reloc_size += subspace_reloc_size;
3293 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3294 = subspace_reloc_size;
3296 section = section->next;
3298 *total_reloc_sizep = total_reloc_size;
3302 /* Write out the space/subspace string table. */
3305 som_write_space_strings (bfd *abfd,
3306 unsigned long current_offset,
3307 unsigned int *string_sizep)
3309 /* Chunk of memory that we can use as buffer space, then throw
3311 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3312 char *tmp_space = xmalloc (tmp_space_size);
3313 char *p = tmp_space;
3314 unsigned int strings_size = 0;
3319 /* Seek to the start of the space strings in preparation for writing
3321 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3324 /* Walk through all the spaces and subspaces (order is not important)
3325 building up and writing string table entries for their names. */
3326 for (section = abfd->sections; section != NULL; section = section->next)
3330 /* Only work with space/subspaces; avoid any other sections
3331 which might have been made (.text for example). */
3332 if (!som_is_space (section) && !som_is_subspace (section))
3335 /* Get the length of the space/subspace name. */
3336 length = strlen (section->name);
3338 /* If there is not enough room for the next entry, then dump the
3339 current buffer contents now and maybe allocate a larger
3340 buffer. Each entry will take 4 bytes to hold the string
3341 length + the string itself + null terminator. */
3342 if (p - tmp_space + 5 + length > tmp_space_size)
3344 /* Flush buffer before refilling or reallocating. */
3345 amt = p - tmp_space;
3346 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3349 /* Reallocate if now empty buffer still too small. */
3350 if (5 + length > tmp_space_size)
3352 /* Ensure a minimum growth factor to avoid O(n**2) space
3353 consumption for n strings. The optimal minimum
3354 factor seems to be 2, as no other value can guarantee
3355 wasting less than 50% space. (Note that we cannot
3356 deallocate space allocated by `alloca' without
3357 returning from this function.) The same technique is
3358 used a few more times below when a buffer is
3360 if (2 * tmp_space_size < length + 5)
3361 tmp_space_size = length + 5;
3363 tmp_space_size = 2 * tmp_space_size;
3364 tmp_space = xrealloc (tmp_space, tmp_space_size);
3367 /* Reset to beginning of the (possibly new) buffer space. */
3371 /* First element in a string table entry is the length of the
3372 string. Alignment issues are already handled. */
3373 bfd_put_32 (abfd, (bfd_vma) length, p);
3377 /* Record the index in the space/subspace records. */
3378 if (som_is_space (section))
3379 som_section_data (section)->space_dict->name = strings_size;
3381 som_section_data (section)->subspace_dict->name = strings_size;
3383 /* Next comes the string itself + a null terminator. */
3384 strcpy (p, section->name);
3386 strings_size += length + 1;
3388 /* Always align up to the next word boundary. */
3389 while (strings_size % 4)
3391 bfd_put_8 (abfd, 0, p);
3397 /* Done with the space/subspace strings. Write out any information
3398 contained in a partial block. */
3399 amt = p - tmp_space;
3400 res = bfd_bwrite ((void *) &tmp_space[0], amt, abfd);
3404 *string_sizep = strings_size;
3408 /* Write out the symbol string table. */
3411 som_write_symbol_strings (bfd *abfd,
3412 unsigned long current_offset,
3414 unsigned int num_syms,
3415 unsigned int *string_sizep,
3416 struct som_compilation_unit *compilation_unit)
3419 /* Chunk of memory that we can use as buffer space, then throw
3421 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3422 char *tmp_space = xmalloc (tmp_space_size);
3423 char *p = tmp_space;
3424 unsigned int strings_size = 0;
3428 /* This gets a bit gruesome because of the compilation unit. The
3429 strings within the compilation unit are part of the symbol
3430 strings, but don't have symbol_dictionary entries. So, manually
3431 write them and update the compilation unit header. On input, the
3432 compilation unit header contains local copies of the strings.
3435 /* Seek to the start of the space strings in preparation for writing
3437 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3440 if (compilation_unit)
3442 for (i = 0; i < 4; i++)
3444 struct som_name_pt *name;
3450 name = &compilation_unit->name;
3453 name = &compilation_unit->language_name;
3456 name = &compilation_unit->product_id;
3459 name = &compilation_unit->version_id;
3465 length = strlen (name->name);
3467 /* If there is not enough room for the next entry, then dump
3468 the current buffer contents now and maybe allocate a
3470 if (p - tmp_space + 5 + length > tmp_space_size)
3472 /* Flush buffer before refilling or reallocating. */
3473 amt = p - tmp_space;
3474 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3477 /* Reallocate if now empty buffer still too small. */
3478 if (5 + length > tmp_space_size)
3480 /* See alloca above for discussion of new size. */
3481 if (2 * tmp_space_size < 5 + length)
3482 tmp_space_size = 5 + length;
3484 tmp_space_size = 2 * tmp_space_size;
3485 tmp_space = xrealloc (tmp_space, tmp_space_size);
3488 /* Reset to beginning of the (possibly new) buffer
3493 /* First element in a string table entry is the length of
3494 the string. This must always be 4 byte aligned. This is
3495 also an appropriate time to fill in the string index
3496 field in the symbol table entry. */
3497 bfd_put_32 (abfd, (bfd_vma) length, p);
3501 /* Next comes the string itself + a null terminator. */
3502 strcpy (p, name->name);
3504 name->strx = strings_size;
3507 strings_size += length + 1;
3509 /* Always align up to the next word boundary. */
3510 while (strings_size % 4)
3512 bfd_put_8 (abfd, 0, p);
3519 for (i = 0; i < num_syms; i++)
3521 size_t length = strlen (syms[i]->name);
3523 /* If there is not enough room for the next entry, then dump the
3524 current buffer contents now and maybe allocate a larger buffer. */
3525 if (p - tmp_space + 5 + length > tmp_space_size)
3527 /* Flush buffer before refilling or reallocating. */
3528 amt = p - tmp_space;
3529 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3532 /* Reallocate if now empty buffer still too small. */
3533 if (5 + length > tmp_space_size)
3535 /* See alloca above for discussion of new size. */
3536 if (2 * tmp_space_size < 5 + length)
3537 tmp_space_size = 5 + length;
3539 tmp_space_size = 2 * tmp_space_size;
3540 tmp_space = xrealloc (tmp_space, tmp_space_size);
3543 /* Reset to beginning of the (possibly new) buffer space. */
3547 /* First element in a string table entry is the length of the
3548 string. This must always be 4 byte aligned. This is also
3549 an appropriate time to fill in the string index field in the
3550 symbol table entry. */
3551 bfd_put_32 (abfd, (bfd_vma) length, p);
3555 /* Next comes the string itself + a null terminator. */
3556 strcpy (p, syms[i]->name);
3558 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3560 strings_size += length + 1;
3562 /* Always align up to the next word boundary. */
3563 while (strings_size % 4)
3565 bfd_put_8 (abfd, 0, p);
3571 /* Scribble out any partial block. */
3572 amt = p - tmp_space;
3573 res = bfd_bwrite ((void *) &tmp_space[0], amt, abfd);
3578 *string_sizep = strings_size;
3582 /* Compute variable information to be placed in the SOM headers,
3583 space/subspace dictionaries, relocation streams, etc. Begin
3584 writing parts of the object file. */
3587 som_begin_writing (bfd *abfd)
3589 unsigned long current_offset = 0;
3590 unsigned int strings_size = 0;
3591 unsigned long num_spaces, num_subspaces, i;
3593 unsigned int total_subspaces = 0;
3594 struct som_exec_auxhdr *exec_header = NULL;
3596 /* The file header will always be first in an object file,
3597 everything else can be in random locations. To keep things
3598 "simple" BFD will lay out the object file in the manner suggested
3599 by the PRO ABI for PA-RISC Systems. */
3601 /* Before any output can really begin offsets for all the major
3602 portions of the object file must be computed. So, starting
3603 with the initial file header compute (and sometimes write)
3604 each portion of the object file. */
3606 /* Make room for the file header, it's contents are not complete
3607 yet, so it can not be written at this time. */
3608 current_offset += sizeof (struct som_external_header);
3610 /* Any auxiliary headers will follow the file header. Right now
3611 we support only the copyright and version headers. */
3612 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3613 obj_som_file_hdr (abfd)->aux_header_size = 0;
3614 if (abfd->flags & (EXEC_P | DYNAMIC))
3616 /* Parts of the exec header will be filled in later, so
3617 delay writing the header itself. Fill in the defaults,
3618 and write it later. */
3619 current_offset += sizeof (struct som_external_exec_auxhdr);
3620 obj_som_file_hdr (abfd)->aux_header_size
3621 += sizeof (struct som_external_exec_auxhdr);
3622 exec_header = obj_som_exec_hdr (abfd);
3623 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3624 exec_header->som_auxhdr.length = 40;
3626 if (obj_som_version_hdr (abfd) != NULL)
3628 struct som_external_string_auxhdr ext_string_auxhdr;
3631 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3634 /* Write the aux_id structure and the string length. */
3635 len = sizeof (struct som_external_string_auxhdr);
3636 obj_som_file_hdr (abfd)->aux_header_size += len;
3637 current_offset += len;
3638 som_swap_string_auxhdr_out
3639 (obj_som_version_hdr (abfd), &ext_string_auxhdr);
3640 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
3643 /* Write the version string. */
3644 len = obj_som_version_hdr (abfd)->header_id.length - 4;
3645 obj_som_file_hdr (abfd)->aux_header_size += len;
3646 current_offset += len;
3647 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->string, len, abfd)
3652 if (obj_som_copyright_hdr (abfd) != NULL)
3654 struct som_external_string_auxhdr ext_string_auxhdr;
3657 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3660 /* Write the aux_id structure and the string length. */
3661 len = sizeof (struct som_external_string_auxhdr);
3662 obj_som_file_hdr (abfd)->aux_header_size += len;
3663 current_offset += len;
3664 som_swap_string_auxhdr_out
3665 (obj_som_copyright_hdr (abfd), &ext_string_auxhdr);
3666 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
3669 /* Write the copyright string. */
3670 len = obj_som_copyright_hdr (abfd)->header_id.length - 4;
3671 obj_som_file_hdr (abfd)->aux_header_size += len;
3672 current_offset += len;
3673 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->string, len, abfd)
3678 /* Next comes the initialization pointers; we have no initialization
3679 pointers, so current offset does not change. */
3680 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3681 obj_som_file_hdr (abfd)->init_array_total = 0;
3683 /* Next are the space records. These are fixed length records.
3685 Count the number of spaces to determine how much room is needed
3686 in the object file for the space records.
3688 The names of the spaces are stored in a separate string table,
3689 and the index for each space into the string table is computed
3690 below. Therefore, it is not possible to write the space headers
3692 num_spaces = som_count_spaces (abfd);
3693 obj_som_file_hdr (abfd)->space_location = current_offset;
3694 obj_som_file_hdr (abfd)->space_total = num_spaces;
3696 num_spaces * sizeof (struct som_external_space_dictionary_record);
3698 /* Next are the subspace records. These are fixed length records.
3700 Count the number of subspaes to determine how much room is needed
3701 in the object file for the subspace records.
3703 A variety if fields in the subspace record are still unknown at
3704 this time (index into string table, fixup stream location/size, etc). */
3705 num_subspaces = som_count_subspaces (abfd);
3706 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3707 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3709 += num_subspaces * sizeof (struct som_external_subspace_dictionary_record);
3711 /* Next is the string table for the space/subspace names. We will
3712 build and write the string table on the fly. At the same time
3713 we will fill in the space/subspace name index fields. */
3715 /* The string table needs to be aligned on a word boundary. */
3716 if (current_offset % 4)
3717 current_offset += (4 - (current_offset % 4));
3719 /* Mark the offset of the space/subspace string table in the
3721 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3723 /* Scribble out the space strings. */
3724 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3727 /* Record total string table size in the header and update the
3729 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3730 current_offset += strings_size;
3732 /* Next is the compilation unit. */
3733 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3734 obj_som_file_hdr (abfd)->compiler_total = 0;
3735 if (obj_som_compilation_unit (abfd))
3737 obj_som_file_hdr (abfd)->compiler_total = 1;
3738 current_offset += sizeof (struct som_external_compilation_unit);
3741 /* Now compute the file positions for the loadable subspaces, taking
3742 care to make sure everything stays properly aligned. */
3744 section = abfd->sections;
3745 for (i = 0; i < num_spaces; i++)
3747 asection *subsection;
3749 unsigned int subspace_offset = 0;
3752 while (!som_is_space (section))
3753 section = section->next;
3756 /* Now look for all its subspaces. */
3757 for (subsection = abfd->sections;
3759 subsection = subsection->next)
3762 if (!som_is_subspace (subsection)
3763 || !som_is_container (section, subsection)
3764 || (subsection->flags & SEC_ALLOC) == 0)
3767 /* If this is the first subspace in the space, and we are
3768 building an executable, then take care to make sure all
3769 the alignments are correct and update the exec header. */
3771 && (abfd->flags & (EXEC_P | DYNAMIC)))
3773 /* Demand paged executables have each space aligned to a
3774 page boundary. Sharable executables (write-protected
3775 text) have just the private (aka data & bss) space aligned
3776 to a page boundary. Ugh. Not true for HPUX.
3778 The HPUX kernel requires the text to always be page aligned
3779 within the file regardless of the executable's type. */
3780 if (abfd->flags & (D_PAGED | DYNAMIC)
3781 || (subsection->flags & SEC_CODE)
3782 || ((abfd->flags & WP_TEXT)
3783 && (subsection->flags & SEC_DATA)))
3784 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3786 /* Update the exec header. */
3787 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3789 exec_header->exec_tmem = section->vma;
3790 exec_header->exec_tfile = current_offset;
3792 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3794 exec_header->exec_dmem = section->vma;
3795 exec_header->exec_dfile = current_offset;
3798 /* Keep track of exactly where we are within a particular
3799 space. This is necessary as the braindamaged HPUX
3800 loader will create holes between subspaces *and*
3801 subspace alignments are *NOT* preserved. What a crock. */
3802 subspace_offset = subsection->vma;
3804 /* Only do this for the first subspace within each space. */
3807 else if (abfd->flags & (EXEC_P | DYNAMIC))
3809 /* The braindamaged HPUX loader may have created a hole
3810 between two subspaces. It is *not* sufficient to use
3811 the alignment specifications within the subspaces to
3812 account for these holes -- I've run into at least one
3813 case where the loader left one code subspace unaligned
3814 in a final executable.
3816 To combat this we keep a current offset within each space,
3817 and use the subspace vma fields to detect and preserve
3818 holes. What a crock!
3820 ps. This is not necessary for unloadable space/subspaces. */
3821 current_offset += subsection->vma - subspace_offset;
3822 if (subsection->flags & SEC_CODE)
3823 exec_header->exec_tsize += subsection->vma - subspace_offset;
3825 exec_header->exec_dsize += subsection->vma - subspace_offset;
3826 subspace_offset += subsection->vma - subspace_offset;
3829 subsection->target_index = total_subspaces++;
3830 /* This is real data to be loaded from the file. */
3831 if (subsection->flags & SEC_LOAD)
3833 /* Update the size of the code & data. */
3834 if (abfd->flags & (EXEC_P | DYNAMIC)
3835 && subsection->flags & SEC_CODE)
3836 exec_header->exec_tsize += subsection->size;
3837 else if (abfd->flags & (EXEC_P | DYNAMIC)
3838 && subsection->flags & SEC_DATA)
3839 exec_header->exec_dsize += subsection->size;
3840 som_section_data (subsection)->subspace_dict->file_loc_init_value
3842 subsection->filepos = current_offset;
3843 current_offset += subsection->size;
3844 subspace_offset += subsection->size;
3846 /* Looks like uninitialized data. */
3849 /* Update the size of the bss section. */
3850 if (abfd->flags & (EXEC_P | DYNAMIC))
3851 exec_header->exec_bsize += subsection->size;
3853 som_section_data (subsection)->subspace_dict->file_loc_init_value
3855 som_section_data (subsection)->subspace_dict->
3856 initialization_length = 0;
3859 /* Goto the next section. */
3860 section = section->next;
3863 /* Finally compute the file positions for unloadable subspaces.
3864 If building an executable, start the unloadable stuff on its
3867 if (abfd->flags & (EXEC_P | DYNAMIC))
3868 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3870 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3871 section = abfd->sections;
3872 for (i = 0; i < num_spaces; i++)
3874 asection *subsection;
3877 while (!som_is_space (section))
3878 section = section->next;
3880 if (abfd->flags & (EXEC_P | DYNAMIC))
3881 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3883 /* Now look for all its subspaces. */
3884 for (subsection = abfd->sections;
3886 subsection = subsection->next)
3889 if (!som_is_subspace (subsection)
3890 || !som_is_container (section, subsection)
3891 || (subsection->flags & SEC_ALLOC) != 0)
3894 subsection->target_index = total_subspaces++;
3895 /* This is real data to be loaded from the file. */
3896 if ((subsection->flags & SEC_LOAD) == 0)
3898 som_section_data (subsection)->subspace_dict->file_loc_init_value
3900 subsection->filepos = current_offset;
3901 current_offset += subsection->size;
3903 /* Looks like uninitialized data. */
3906 som_section_data (subsection)->subspace_dict->file_loc_init_value
3908 som_section_data (subsection)->subspace_dict->
3909 initialization_length = subsection->size;
3912 /* Goto the next section. */
3913 section = section->next;
3916 /* If building an executable, then make sure to seek to and write
3917 one byte at the end of the file to make sure any necessary
3918 zeros are filled in. Ugh. */
3919 if (abfd->flags & (EXEC_P | DYNAMIC))
3920 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3921 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3923 if (bfd_bwrite ((void *) "", (bfd_size_type) 1, abfd) != 1)
3926 obj_som_file_hdr (abfd)->unloadable_sp_size
3927 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3929 /* Loader fixups are not supported in any way shape or form. */
3930 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3931 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3933 /* Done. Store the total size of the SOM so far. */
3934 obj_som_file_hdr (abfd)->som_length = current_offset;
3939 /* Finally, scribble out the various headers to the disk. */
3942 som_finish_writing (bfd *abfd)
3944 int num_spaces = som_count_spaces (abfd);
3945 asymbol **syms = bfd_get_outsymbols (abfd);
3947 int subspace_index = 0;
3950 unsigned long current_offset;
3951 unsigned int strings_size, total_reloc_size;
3953 struct som_external_header ext_header;
3955 /* We must set up the version identifier here as objcopy/strip copy
3956 private BFD data too late for us to handle this in som_begin_writing. */
3957 if (obj_som_exec_data (abfd)
3958 && obj_som_exec_data (abfd)->version_id)
3959 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3961 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3963 /* Next is the symbol table. These are fixed length records.
3965 Count the number of symbols to determine how much room is needed
3966 in the object file for the symbol table.
3968 The names of the symbols are stored in a separate string table,
3969 and the index for each symbol name into the string table is computed
3970 below. Therefore, it is not possible to write the symbol table
3973 These used to be output before the subspace contents, but they
3974 were moved here to work around a stupid bug in the hpux linker
3975 (fixed in hpux10). */
3976 current_offset = obj_som_file_hdr (abfd)->som_length;
3978 /* Make sure we're on a word boundary. */
3979 if (current_offset % 4)
3980 current_offset += (4 - (current_offset % 4));
3982 num_syms = bfd_get_symcount (abfd);
3983 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3984 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3986 num_syms * sizeof (struct som_external_symbol_dictionary_record);
3988 /* Next are the symbol strings.
3989 Align them to a word boundary. */
3990 if (current_offset % 4)
3991 current_offset += (4 - (current_offset % 4));
3992 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3994 /* Scribble out the symbol strings. */
3995 if (! som_write_symbol_strings (abfd, current_offset, syms,
3996 num_syms, &strings_size,
3997 obj_som_compilation_unit (abfd)))
4000 /* Record total string table size in header and update the
4002 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
4003 current_offset += strings_size;
4005 /* Do prep work before handling fixups. */
4006 som_prep_for_fixups (abfd,
4007 bfd_get_outsymbols (abfd),
4008 bfd_get_symcount (abfd));
4010 /* At the end of the file is the fixup stream which starts on a
4012 if (current_offset % 4)
4013 current_offset += (4 - (current_offset % 4));
4014 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
4016 /* Write the fixups and update fields in subspace headers which
4017 relate to the fixup stream. */
4018 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
4021 /* Record the total size of the fixup stream in the file header. */
4022 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
4024 /* Done. Store the total size of the SOM. */
4025 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
4027 /* Now that the symbol table information is complete, build and
4028 write the symbol table. */
4029 if (! som_build_and_write_symbol_table (abfd))
4032 /* Subspaces are written first so that we can set up information
4033 about them in their containing spaces as the subspace is written. */
4035 /* Seek to the start of the subspace dictionary records. */
4036 location = obj_som_file_hdr (abfd)->subspace_location;
4037 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4040 section = abfd->sections;
4041 /* Now for each loadable space write out records for its subspaces. */
4042 for (i = 0; i < num_spaces; i++)
4044 asection *subsection;
4047 while (!som_is_space (section))
4048 section = section->next;
4050 /* Now look for all its subspaces. */
4051 for (subsection = abfd->sections;
4053 subsection = subsection->next)
4055 struct som_external_subspace_dictionary_record ext_subspace_dict;
4057 /* Skip any section which does not correspond to a space
4058 or subspace. Or does not have SEC_ALLOC set (and therefore
4059 has no real bits on the disk). */
4060 if (!som_is_subspace (subsection)
4061 || !som_is_container (section, subsection)
4062 || (subsection->flags & SEC_ALLOC) == 0)
4065 /* If this is the first subspace for this space, then save
4066 the index of the subspace in its containing space. Also
4067 set "is_loadable" in the containing space. */
4069 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4071 som_section_data (section)->space_dict->is_loadable = 1;
4072 som_section_data (section)->space_dict->subspace_index
4076 /* Increment the number of subspaces seen and the number of
4077 subspaces contained within the current space. */
4079 som_section_data (section)->space_dict->subspace_quantity++;
4081 /* Mark the index of the current space within the subspace's
4082 dictionary record. */
4083 som_section_data (subsection)->subspace_dict->space_index = i;
4085 /* Dump the current subspace header. */
4086 som_swap_subspace_dictionary_record_out
4087 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
4088 amt = sizeof (struct som_subspace_dictionary_record);
4089 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
4092 /* Goto the next section. */
4093 section = section->next;
4096 /* Now repeat the process for unloadable subspaces. */
4097 section = abfd->sections;
4098 /* Now for each space write out records for its subspaces. */
4099 for (i = 0; i < num_spaces; i++)
4101 asection *subsection;
4104 while (!som_is_space (section))
4105 section = section->next;
4107 /* Now look for all its subspaces. */
4108 for (subsection = abfd->sections;
4110 subsection = subsection->next)
4112 struct som_external_subspace_dictionary_record ext_subspace_dict;
4114 /* Skip any section which does not correspond to a space or
4115 subspace, or which SEC_ALLOC set (and therefore handled
4116 in the loadable spaces/subspaces code above). */
4118 if (!som_is_subspace (subsection)
4119 || !som_is_container (section, subsection)
4120 || (subsection->flags & SEC_ALLOC) != 0)
4123 /* If this is the first subspace for this space, then save
4124 the index of the subspace in its containing space. Clear
4127 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4129 som_section_data (section)->space_dict->is_loadable = 0;
4130 som_section_data (section)->space_dict->subspace_index
4134 /* Increment the number of subspaces seen and the number of
4135 subspaces contained within the current space. */
4136 som_section_data (section)->space_dict->subspace_quantity++;
4139 /* Mark the index of the current space within the subspace's
4140 dictionary record. */
4141 som_section_data (subsection)->subspace_dict->space_index = i;
4143 /* Dump this subspace header. */
4144 som_swap_subspace_dictionary_record_out
4145 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
4146 amt = sizeof (struct som_subspace_dictionary_record);
4147 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
4150 /* Goto the next section. */
4151 section = section->next;
4154 /* All the subspace dictionary records are written, and all the
4155 fields are set up in the space dictionary records.
4157 Seek to the right location and start writing the space
4158 dictionary records. */
4159 location = obj_som_file_hdr (abfd)->space_location;
4160 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4163 section = abfd->sections;
4164 for (i = 0; i < num_spaces; i++)
4166 struct som_external_space_dictionary_record ext_space_dict;
4169 while (!som_is_space (section))
4170 section = section->next;
4172 /* Dump its header. */
4173 som_swap_space_dictionary_out (som_section_data (section)->space_dict,
4175 amt = sizeof (struct som_external_space_dictionary_record);
4176 if (bfd_bwrite (&ext_space_dict, amt, abfd) != amt)
4179 /* Goto the next section. */
4180 section = section->next;
4183 /* Write the compilation unit record if there is one. */
4184 if (obj_som_compilation_unit (abfd))
4186 struct som_external_compilation_unit ext_comp_unit;
4188 location = obj_som_file_hdr (abfd)->compiler_location;
4189 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4192 som_swap_compilation_unit_out
4193 (obj_som_compilation_unit (abfd), &ext_comp_unit);
4195 amt = sizeof (struct som_external_compilation_unit);
4196 if (bfd_bwrite (&ext_comp_unit, amt, abfd) != amt)
4200 /* Setting of the system_id has to happen very late now that copying of
4201 BFD private data happens *after* section contents are set. */
4202 if (abfd->flags & (EXEC_P | DYNAMIC))
4203 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
4204 else if (bfd_get_mach (abfd) == pa20)
4205 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
4206 else if (bfd_get_mach (abfd) == pa11)
4207 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
4209 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
4211 /* Swap and compute the checksum for the file header just before writing
4212 the header to disk. */
4213 som_swap_header_out (obj_som_file_hdr (abfd), &ext_header);
4214 bfd_putb32 (som_compute_checksum (&ext_header), ext_header.checksum);
4216 /* Only thing left to do is write out the file header. It is always
4217 at location zero. Seek there and write it. */
4218 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4220 amt = sizeof (struct som_external_header);
4221 if (bfd_bwrite (&ext_header, amt, abfd) != amt)
4224 /* Now write the exec header. */
4225 if (abfd->flags & (EXEC_P | DYNAMIC))
4227 long tmp, som_length;
4228 struct som_exec_auxhdr *exec_header;
4229 struct som_external_exec_auxhdr ext_exec_header;
4231 exec_header = obj_som_exec_hdr (abfd);
4232 exec_header->exec_entry = bfd_get_start_address (abfd);
4233 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
4235 /* Oh joys. Ram some of the BSS data into the DATA section
4236 to be compatible with how the hp linker makes objects
4237 (saves memory space). */
4238 tmp = exec_header->exec_dsize;
4239 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
4240 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
4241 if (exec_header->exec_bsize < 0)
4242 exec_header->exec_bsize = 0;
4243 exec_header->exec_dsize = tmp;
4245 /* Now perform some sanity checks. The idea is to catch bogons now and
4246 inform the user, instead of silently generating a bogus file. */
4247 som_length = obj_som_file_hdr (abfd)->som_length;
4248 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
4249 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
4251 bfd_set_error (bfd_error_bad_value);
4255 som_swap_exec_auxhdr_out (exec_header, &ext_exec_header);
4257 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
4261 amt = sizeof (ext_exec_header);
4262 if (bfd_bwrite (&ext_exec_header, amt, abfd) != amt)
4268 /* Compute and return the checksum for a SOM file header. */
4270 static unsigned long
4271 som_compute_checksum (struct som_external_header *hdr)
4273 unsigned long checksum, count, i;
4274 unsigned long *buffer = (unsigned long *) hdr;
4277 count = sizeof (struct som_external_header) / 4;
4278 for (i = 0; i < count; i++)
4279 checksum ^= *(buffer + i);
4285 som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
4287 struct som_misc_symbol_info *info)
4290 memset (info, 0, sizeof (struct som_misc_symbol_info));
4292 /* The HP SOM linker requires detailed type information about
4293 all symbols (including undefined symbols!). Unfortunately,
4294 the type specified in an import/export statement does not
4295 always match what the linker wants. Severe braindamage. */
4297 /* Section symbols will not have a SOM symbol type assigned to
4298 them yet. Assign all section symbols type ST_DATA. */
4299 if (sym->flags & BSF_SECTION_SYM)
4300 info->symbol_type = ST_DATA;
4303 /* For BFD style common, the linker will choke unless we set the
4304 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
4305 if (bfd_is_com_section (sym->section))
4307 info->symbol_type = ST_STORAGE;
4308 info->symbol_scope = SS_UNSAT;
4311 /* It is possible to have a symbol without an associated
4312 type. This happens if the user imported the symbol
4313 without a type and the symbol was never defined
4314 locally. If BSF_FUNCTION is set for this symbol, then
4315 assign it type ST_CODE (the HP linker requires undefined
4316 external functions to have type ST_CODE rather than ST_ENTRY). */
4317 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4318 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4319 && bfd_is_und_section (sym->section)
4320 && sym->flags & BSF_FUNCTION)
4321 info->symbol_type = ST_CODE;
4323 /* Handle function symbols which were defined in this file.
4324 They should have type ST_ENTRY. Also retrieve the argument
4325 relocation bits from the SOM backend information. */
4326 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4327 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4328 && (sym->flags & BSF_FUNCTION))
4329 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4330 && (sym->flags & BSF_FUNCTION)))
4332 info->symbol_type = ST_ENTRY;
4333 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4334 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4337 /* For unknown symbols set the symbol's type based on the symbol's
4338 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4339 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4341 if (bfd_is_abs_section (sym->section))
4342 info->symbol_type = ST_ABSOLUTE;
4343 else if (sym->section->flags & SEC_CODE)
4344 info->symbol_type = ST_CODE;
4346 info->symbol_type = ST_DATA;
4349 /* From now on it's a very simple mapping. */
4350 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4351 info->symbol_type = ST_ABSOLUTE;
4352 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4353 info->symbol_type = ST_CODE;
4354 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4355 info->symbol_type = ST_DATA;
4356 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4357 info->symbol_type = ST_MILLICODE;
4358 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4359 info->symbol_type = ST_PLABEL;
4360 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4361 info->symbol_type = ST_PRI_PROG;
4362 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4363 info->symbol_type = ST_SEC_PROG;
4366 /* Now handle the symbol's scope. Exported data which is not
4367 in the common section has scope SS_UNIVERSAL. Note scope
4368 of common symbols was handled earlier! */
4369 if (bfd_is_com_section (sym->section))
4371 else if (bfd_is_und_section (sym->section))
4372 info->symbol_scope = SS_UNSAT;
4373 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
4374 info->symbol_scope = SS_UNIVERSAL;
4375 /* Anything else which is not in the common section has scope
4378 info->symbol_scope = SS_LOCAL;
4380 /* Now set the symbol_info field. It has no real meaning
4381 for undefined or common symbols, but the HP linker will
4382 choke if it's not set to some "reasonable" value. We
4383 use zero as a reasonable value. */
4384 if (bfd_is_com_section (sym->section)
4385 || bfd_is_und_section (sym->section)
4386 || bfd_is_abs_section (sym->section))
4387 info->symbol_info = 0;
4388 /* For all other symbols, the symbol_info field contains the
4389 subspace index of the space this symbol is contained in. */
4391 info->symbol_info = sym->section->target_index;
4393 /* Set the symbol's value. */
4394 info->symbol_value = sym->value + sym->section->vma;
4396 /* The secondary_def field is for "weak" symbols. */
4397 if (sym->flags & BSF_WEAK)
4398 info->secondary_def = TRUE;
4400 info->secondary_def = FALSE;
4402 /* The is_comdat, is_common and dup_common fields provide various
4405 For data symbols, setting IS_COMMON provides Fortran style common
4406 (duplicate definitions and overlapped initialization). Setting both
4407 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4408 definitions as long as they are all the same length). In a shared
4409 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4410 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4411 symbol except in that it loses its IS_COMDAT flag in a shared link.
4413 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4414 DUP_COMMON code symbols are not exported from shared libraries.
4415 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4417 We take a simplified approach to setting the is_comdat, is_common
4418 and dup_common flags in symbols based on the flag settings of their
4419 subspace. This avoids having to add directives like `.comdat' but
4420 the linker behavior is probably undefined if there is more than one
4421 universal symbol (comdat key sysmbol) in a subspace.
4423 The behavior of these flags is not well documentmented, so there
4424 may be bugs and some surprising interactions with other flags. */
4425 if (som_section_data (sym->section)
4426 && som_section_data (sym->section)->subspace_dict
4427 && info->symbol_scope == SS_UNIVERSAL
4428 && (info->symbol_type == ST_ENTRY
4429 || info->symbol_type == ST_CODE
4430 || info->symbol_type == ST_DATA))
4433 = som_section_data (sym->section)->subspace_dict->is_comdat;
4435 = som_section_data (sym->section)->subspace_dict->is_common;
4437 = som_section_data (sym->section)->subspace_dict->dup_common;
4441 /* Build and write, in one big chunk, the entire symbol table for
4445 som_build_and_write_symbol_table (bfd *abfd)
4447 unsigned int num_syms = bfd_get_symcount (abfd);
4448 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4449 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4450 struct som_external_symbol_dictionary_record *som_symtab = NULL;
4452 bfd_size_type symtab_size;
4454 /* Compute total symbol table size and allocate a chunk of memory
4455 to hold the symbol table as we build it. */
4456 symtab_size = num_syms;
4457 symtab_size *= sizeof (struct som_external_symbol_dictionary_record);
4458 som_symtab = bfd_zmalloc (symtab_size);
4459 if (som_symtab == NULL && symtab_size != 0)
4462 /* Walk over each symbol. */
4463 for (i = 0; i < num_syms; i++)
4465 struct som_misc_symbol_info info;
4468 /* This is really an index into the symbol strings table.
4469 By the time we get here, the index has already been
4470 computed and stored into the name field in the BFD symbol. */
4471 bfd_putb32 (som_symbol_data (bfd_syms[i])->stringtab_offset,
4472 som_symtab[i].name);
4474 /* Derive SOM information from the BFD symbol. */
4475 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4478 flags = (info.symbol_type << SOM_SYMBOL_TYPE_SH)
4479 | (info.symbol_scope << SOM_SYMBOL_SCOPE_SH)
4480 | (info.arg_reloc << SOM_SYMBOL_ARG_RELOC_SH)
4481 | (3 << SOM_SYMBOL_XLEAST_SH)
4482 | (info.secondary_def ? SOM_SYMBOL_SECONDARY_DEF : 0)
4483 | (info.is_common ? SOM_SYMBOL_IS_COMMON : 0)
4484 | (info.dup_common ? SOM_SYMBOL_DUP_COMMON : 0);
4485 bfd_putb32 (flags, som_symtab[i].flags);
4487 flags = (info.symbol_info << SOM_SYMBOL_SYMBOL_INFO_SH)
4488 | (info.is_comdat ? SOM_SYMBOL_IS_COMDAT : 0);
4489 bfd_putb32 (flags, som_symtab[i].info);
4490 bfd_putb32 (info.symbol_value | info.priv_level,
4491 som_symtab[i].symbol_value);
4494 /* Everything is ready, seek to the right location and
4495 scribble out the symbol table. */
4496 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4499 if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
4502 if (som_symtab != NULL)
4506 if (som_symtab != NULL)
4511 /* Write an object in SOM format. */
4514 som_write_object_contents (bfd *abfd)
4516 if (! abfd->output_has_begun)
4518 /* Set up fixed parts of the file, space, and subspace headers.
4519 Notify the world that output has begun. */
4520 som_prep_headers (abfd);
4521 abfd->output_has_begun = TRUE;
4522 /* Start writing the object file. This include all the string
4523 tables, fixup streams, and other portions of the object file. */
4524 som_begin_writing (abfd);
4527 return som_finish_writing (abfd);
4530 /* Read and save the string table associated with the given BFD. */
4533 som_slurp_string_table (bfd *abfd)
4538 /* Use the saved version if its available. */
4539 if (obj_som_stringtab (abfd) != NULL)
4542 /* I don't think this can currently happen, and I'm not sure it should
4543 really be an error, but it's better than getting unpredictable results
4544 from the host's malloc when passed a size of zero. */
4545 if (obj_som_stringtab_size (abfd) == 0)
4547 bfd_set_error (bfd_error_no_symbols);
4551 /* Allocate and read in the string table. */
4552 amt = obj_som_stringtab_size (abfd);
4553 stringtab = bfd_zmalloc (amt);
4554 if (stringtab == NULL)
4557 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4560 if (bfd_bread (stringtab, amt, abfd) != amt)
4563 /* Save our results and return success. */
4564 obj_som_stringtab (abfd) = stringtab;
4568 /* Return the amount of data (in bytes) required to hold the symbol
4569 table for this object. */
4572 som_get_symtab_upper_bound (bfd *abfd)
4574 if (!som_slurp_symbol_table (abfd))
4577 return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
4580 /* Convert from a SOM subspace index to a BFD section. */
4583 bfd_section_from_som_symbol
4584 (bfd *abfd, struct som_external_symbol_dictionary_record *symbol)
4587 unsigned int flags = bfd_getb32 (symbol->flags);
4588 unsigned int symbol_type = (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
4590 /* The meaning of the symbol_info field changes for functions
4591 within executables. So only use the quick symbol_info mapping for
4592 incomplete objects and non-function symbols in executables. */
4593 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4594 || (symbol_type != ST_ENTRY
4595 && symbol_type != ST_PRI_PROG
4596 && symbol_type != ST_SEC_PROG
4597 && symbol_type != ST_MILLICODE))
4599 int idx = (bfd_getb32 (symbol->info) >> SOM_SYMBOL_SYMBOL_INFO_SH)
4600 & SOM_SYMBOL_SYMBOL_INFO_MASK;
4602 for (section = abfd->sections; section != NULL; section = section->next)
4603 if (section->target_index == idx && som_is_subspace (section))
4608 unsigned int value = bfd_getb32 (symbol->symbol_value);
4610 /* For executables we will have to use the symbol's address and
4611 find out what section would contain that address. Yuk. */
4612 for (section = abfd->sections; section; section = section->next)
4613 if (value >= section->vma
4614 && value <= section->vma + section->size
4615 && som_is_subspace (section))
4619 /* Could be a symbol from an external library (such as an OMOS
4620 shared library). Don't abort. */
4621 return bfd_abs_section_ptr;
4624 /* Read and save the symbol table associated with the given BFD. */
4627 som_slurp_symbol_table (bfd *abfd)
4629 int symbol_count = bfd_get_symcount (abfd);
4630 int symsize = sizeof (struct som_external_symbol_dictionary_record);
4632 struct som_external_symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4633 som_symbol_type *sym, *symbase;
4636 /* Return saved value if it exists. */
4637 if (obj_som_symtab (abfd) != NULL)
4638 goto successful_return;
4640 /* Special case. This is *not* an error. */
4641 if (symbol_count == 0)
4642 goto successful_return;
4644 if (!som_slurp_string_table (abfd))
4647 stringtab = obj_som_stringtab (abfd);
4650 amt *= sizeof (som_symbol_type);
4651 symbase = bfd_zmalloc (amt);
4652 if (symbase == NULL)
4655 /* Read in the external SOM representation. */
4658 buf = bfd_malloc (amt);
4659 if (buf == NULL && amt != 0)
4661 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4663 if (bfd_bread (buf, amt, abfd) != amt)
4666 /* Iterate over all the symbols and internalize them. */
4667 endbufp = buf + symbol_count;
4668 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4670 unsigned int flags = bfd_getb32 (bufp->flags);
4671 unsigned int symbol_type =
4672 (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
4673 unsigned int symbol_scope =
4674 (flags >> SOM_SYMBOL_SCOPE_SH) & SOM_SYMBOL_SCOPE_MASK;
4676 /* I don't think we care about these. */
4677 if (symbol_type == ST_SYM_EXT || symbol_type == ST_ARG_EXT)
4680 /* Set some private data we care about. */
4681 if (symbol_type == ST_NULL)
4682 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4683 else if (symbol_type == ST_ABSOLUTE)
4684 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4685 else if (symbol_type == ST_DATA)
4686 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4687 else if (symbol_type == ST_CODE)
4688 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4689 else if (symbol_type == ST_PRI_PROG)
4690 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4691 else if (symbol_type == ST_SEC_PROG)
4692 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4693 else if (symbol_type == ST_ENTRY)
4694 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4695 else if (symbol_type == ST_MILLICODE)
4696 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4697 else if (symbol_type == ST_PLABEL)
4698 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4700 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4701 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc =
4702 (flags >> SOM_SYMBOL_ARG_RELOC_SH) & SOM_SYMBOL_ARG_RELOC_MASK;
4704 /* Some reasonable defaults. */
4705 sym->symbol.the_bfd = abfd;
4706 sym->symbol.name = bfd_getb32 (bufp->name) + stringtab;
4707 sym->symbol.value = bfd_getb32 (bufp->symbol_value);
4708 sym->symbol.section = 0;
4709 sym->symbol.flags = 0;
4711 switch (symbol_type)
4715 sym->symbol.flags |= BSF_FUNCTION;
4716 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4717 sym->symbol.value & 0x3;
4718 sym->symbol.value &= ~0x3;
4725 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4726 sym->symbol.value & 0x3;
4727 sym->symbol.value &= ~0x3;
4728 /* If the symbol's scope is SS_UNSAT, then these are
4729 undefined function symbols. */
4730 if (symbol_scope == SS_UNSAT)
4731 sym->symbol.flags |= BSF_FUNCTION;
4737 /* Handle scoping and section information. */
4738 switch (symbol_scope)
4740 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4741 so the section associated with this symbol can't be known. */
4743 if (symbol_type != ST_STORAGE)
4744 sym->symbol.section = bfd_und_section_ptr;
4746 sym->symbol.section = bfd_com_section_ptr;
4747 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4751 if (symbol_type != ST_STORAGE)
4752 sym->symbol.section = bfd_und_section_ptr;
4754 sym->symbol.section = bfd_com_section_ptr;
4758 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4759 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4760 sym->symbol.value -= sym->symbol.section->vma;
4764 sym->symbol.flags |= BSF_LOCAL;
4765 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4766 sym->symbol.value -= sym->symbol.section->vma;
4770 /* Check for a weak symbol. */
4771 if (flags & SOM_SYMBOL_SECONDARY_DEF)
4772 sym->symbol.flags |= BSF_WEAK;
4774 /* Mark section symbols and symbols used by the debugger.
4775 Note $START$ is a magic code symbol, NOT a section symbol. */
4776 if (sym->symbol.name[0] == '$'
4777 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4778 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4779 sym->symbol.flags |= BSF_SECTION_SYM;
4780 else if (CONST_STRNEQ (sym->symbol.name, "L$0\002"))
4782 sym->symbol.flags |= BSF_SECTION_SYM;
4783 sym->symbol.name = sym->symbol.section->name;
4785 else if (CONST_STRNEQ (sym->symbol.name, "L$0\001"))
4786 sym->symbol.flags |= BSF_DEBUGGING;
4788 /* Note increment at bottom of loop, since we skip some symbols
4789 we can not include it as part of the for statement. */
4793 /* We modify the symbol count to record the number of BFD symbols we
4795 bfd_get_symcount (abfd) = sym - symbase;
4797 /* Save our results and return success. */
4798 obj_som_symtab (abfd) = symbase;
4810 /* Canonicalize a SOM symbol table. Return the number of entries
4811 in the symbol table. */
4814 som_canonicalize_symtab (bfd *abfd, asymbol **location)
4817 som_symbol_type *symbase;
4819 if (!som_slurp_symbol_table (abfd))
4822 i = bfd_get_symcount (abfd);
4823 symbase = obj_som_symtab (abfd);
4825 for (; i > 0; i--, location++, symbase++)
4826 *location = &symbase->symbol;
4828 /* Final null pointer. */
4830 return (bfd_get_symcount (abfd));
4833 /* Make a SOM symbol. There is nothing special to do here. */
4836 som_make_empty_symbol (bfd *abfd)
4838 bfd_size_type amt = sizeof (som_symbol_type);
4839 som_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt);
4841 if (new_symbol_type == NULL)
4843 new_symbol_type->symbol.the_bfd = abfd;
4845 return &new_symbol_type->symbol;
4848 /* Print symbol information. */
4851 som_print_symbol (bfd *abfd,
4854 bfd_print_symbol_type how)
4856 FILE *file = (FILE *) afile;
4860 case bfd_print_symbol_name:
4861 fprintf (file, "%s", symbol->name);
4863 case bfd_print_symbol_more:
4864 fprintf (file, "som ");
4865 fprintf_vma (file, symbol->value);
4866 fprintf (file, " %lx", (long) symbol->flags);
4868 case bfd_print_symbol_all:
4870 const char *section_name;
4872 section_name = symbol->section ? symbol->section->name : "(*none*)";
4873 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
4874 fprintf (file, " %s\t%s", section_name, symbol->name);
4881 som_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
4884 return name[0] == 'L' && name[1] == '$';
4887 /* Count or process variable-length SOM fixup records.
4889 To avoid code duplication we use this code both to compute the number
4890 of relocations requested by a stream, and to internalize the stream.
4892 When computing the number of relocations requested by a stream the
4893 variables rptr, section, and symbols have no meaning.
4895 Return the number of relocations requested by the fixup stream. When
4898 This needs at least two or three more passes to get it cleaned up. */
4901 som_set_reloc_info (unsigned char *fixup,
4903 arelent *internal_relocs,
4906 bfd_boolean just_count)
4908 unsigned int op, varname, deallocate_contents = 0;
4909 unsigned char *end_fixups = &fixup[end];
4910 const struct fixup_format *fp;
4912 unsigned char *save_fixup;
4913 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4915 arelent *rptr = internal_relocs;
4916 unsigned int offset = 0;
4918 #define var(c) variables[(c) - 'A']
4919 #define push(v) (*sp++ = (v))
4920 #define pop() (*--sp)
4921 #define emptystack() (sp == stack)
4923 som_initialize_reloc_queue (reloc_queue);
4924 memset (variables, 0, sizeof (variables));
4925 memset (stack, 0, sizeof (stack));
4928 saved_unwind_bits = 0;
4931 while (fixup < end_fixups)
4933 /* Save pointer to the start of this fixup. We'll use
4934 it later to determine if it is necessary to put this fixup
4938 /* Get the fixup code and its associated format. */
4940 fp = &som_fixup_formats[op];
4942 /* Handle a request for a previous fixup. */
4943 if (*fp->format == 'P')
4945 /* Get pointer to the beginning of the prev fixup, move
4946 the repeated fixup to the head of the queue. */
4947 fixup = reloc_queue[fp->D].reloc;
4948 som_reloc_queue_fix (reloc_queue, fp->D);
4951 /* Get the fixup code and its associated format. */
4953 fp = &som_fixup_formats[op];
4956 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4958 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4959 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4961 rptr->address = offset;
4962 rptr->howto = &som_hppa_howto_table[op];
4964 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4967 /* Set default input length to 0. Get the opcode class index
4971 var ('U') = saved_unwind_bits;
4973 /* Get the opcode format. */
4976 /* Process the format string. Parsing happens in two phases,
4977 parse RHS, then assign to LHS. Repeat until no more
4978 characters in the format string. */
4981 /* The variable this pass is going to compute a value for. */
4984 /* Start processing RHS. Continue until a NULL or '=' is found. */
4989 /* If this is a variable, push it on the stack. */
4993 /* If this is a lower case letter, then it represents
4994 additional data from the fixup stream to be pushed onto
4996 else if (ISLOWER (c))
4998 int bits = (c - 'a') * 8;
4999 for (v = 0; c > 'a'; --c)
5000 v = (v << 8) | *fixup++;
5002 v = sign_extend (v, bits);
5006 /* A decimal constant. Push it on the stack. */
5007 else if (ISDIGIT (c))
5010 while (ISDIGIT (*cp))
5011 v = (v * 10) + (*cp++ - '0');
5015 /* An operator. Pop two values from the stack and
5016 use them as operands to the given operation. Push
5017 the result of the operation back on the stack. */
5039 while (*cp && *cp != '=');
5041 /* Move over the equal operator. */
5044 /* Pop the RHS off the stack. */
5047 /* Perform the assignment. */
5050 /* Handle side effects. and special 'O' stack cases. */
5053 /* Consume some bytes from the input space. */
5057 /* A symbol to use in the relocation. Make a note
5058 of this if we are not just counting. */
5061 rptr->sym_ptr_ptr = &symbols[c];
5063 /* Argument relocation bits for a function call. */
5067 unsigned int tmp = var ('R');
5070 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
5071 && R_PCREL_CALL + 10 > op)
5072 || (som_hppa_howto_table[op].type == R_ABS_CALL
5073 && R_ABS_CALL + 10 > op))
5075 /* Simple encoding. */
5082 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
5084 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
5086 rptr->addend |= 1 << 8 | 1 << 6;
5088 rptr->addend |= 1 << 8;
5092 unsigned int tmp1, tmp2;
5094 /* First part is easy -- low order two bits are
5095 directly copied, then shifted away. */
5096 rptr->addend = tmp & 0x3;
5099 /* Diving the result by 10 gives us the second
5100 part. If it is 9, then the first two words
5101 are a double precision paramater, else it is
5102 3 * the first arg bits + the 2nd arg bits. */
5106 rptr->addend += (0xe << 6);
5109 /* Get the two pieces. */
5112 /* Put them in the addend. */
5113 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
5116 /* What's left is the third part. It's unpacked
5117 just like the second. */
5119 rptr->addend += (0xe << 2);
5124 rptr->addend += (tmp2 << 4) + (tmp << 2);
5127 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
5130 /* Handle the linker expression stack. */
5135 subop = comp1_opcodes;
5138 subop = comp2_opcodes;
5141 subop = comp3_opcodes;
5146 while (*subop <= (unsigned char) c)
5150 /* The lower 32unwind bits must be persistent. */
5152 saved_unwind_bits = var ('U');
5160 /* If we used a previous fixup, clean up after it. */
5163 fixup = save_fixup + 1;
5167 else if (fixup > save_fixup + 1)
5168 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
5170 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
5172 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
5173 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
5175 /* Done with a single reloction. Loop back to the top. */
5178 if (som_hppa_howto_table[op].type == R_ENTRY)
5179 rptr->addend = var ('T');
5180 else if (som_hppa_howto_table[op].type == R_EXIT)
5181 rptr->addend = var ('U');
5182 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
5183 || som_hppa_howto_table[op].type == R_ABS_CALL)
5185 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
5187 /* Try what was specified in R_DATA_OVERRIDE first
5188 (if anything). Then the hard way using the
5189 section contents. */
5190 rptr->addend = var ('V');
5192 if (rptr->addend == 0 && !section->contents)
5194 /* Got to read the damn contents first. We don't
5195 bother saving the contents (yet). Add it one
5196 day if the need arises. */
5198 if (!bfd_malloc_and_get_section (section->owner, section,
5201 if (contents != NULL)
5203 return (unsigned) -1;
5205 section->contents = contents;
5206 deallocate_contents = 1;
5208 else if (rptr->addend == 0)
5209 rptr->addend = bfd_get_32 (section->owner,
5211 + offset - var ('L')));
5215 rptr->addend = var ('V');
5219 /* Now that we've handled a "full" relocation, reset
5221 memset (variables, 0, sizeof (variables));
5222 memset (stack, 0, sizeof (stack));
5225 if (deallocate_contents)
5226 free (section->contents);
5236 /* Read in the relocs (aka fixups in SOM terms) for a section.
5238 som_get_reloc_upper_bound calls this routine with JUST_COUNT
5239 set to TRUE to indicate it only needs a count of the number
5240 of actual relocations. */
5243 som_slurp_reloc_table (bfd *abfd,
5246 bfd_boolean just_count)
5248 unsigned char *external_relocs;
5249 unsigned int fixup_stream_size;
5250 arelent *internal_relocs;
5251 unsigned int num_relocs;
5254 fixup_stream_size = som_section_data (section)->reloc_size;
5255 /* If there were no relocations, then there is nothing to do. */
5256 if (section->reloc_count == 0)
5259 /* If reloc_count is -1, then the relocation stream has not been
5260 parsed. We must do so now to know how many relocations exist. */
5261 if (section->reloc_count == (unsigned) -1)
5263 amt = fixup_stream_size;
5264 external_relocs = bfd_malloc (amt);
5265 if (external_relocs == NULL)
5267 /* Read in the external forms. */
5269 obj_som_reloc_filepos (abfd) + section->rel_filepos,
5273 if (bfd_bread (external_relocs, amt, abfd) != amt)
5276 /* Let callers know how many relocations found.
5277 also save the relocation stream as we will
5279 section->reloc_count = som_set_reloc_info (external_relocs,
5281 NULL, NULL, NULL, TRUE);
5283 som_section_data (section)->reloc_stream = external_relocs;
5286 /* If the caller only wanted a count, then return now. */
5290 num_relocs = section->reloc_count;
5291 external_relocs = som_section_data (section)->reloc_stream;
5292 /* Return saved information about the relocations if it is available. */
5293 if (section->relocation != NULL)
5297 amt *= sizeof (arelent);
5298 internal_relocs = bfd_zalloc (abfd, (amt));
5299 if (internal_relocs == NULL)
5302 /* Process and internalize the relocations. */
5303 som_set_reloc_info (external_relocs, fixup_stream_size,
5304 internal_relocs, section, symbols, FALSE);
5306 /* We're done with the external relocations. Free them. */
5307 free (external_relocs);
5308 som_section_data (section)->reloc_stream = NULL;
5310 /* Save our results and return success. */
5311 section->relocation = internal_relocs;
5315 /* Return the number of bytes required to store the relocation
5316 information associated with the given section. */
5319 som_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
5321 /* If section has relocations, then read in the relocation stream
5322 and parse it to determine how many relocations exist. */
5323 if (asect->flags & SEC_RELOC)
5325 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
5327 return (asect->reloc_count + 1) * sizeof (arelent *);
5330 /* There are no relocations. Return enough space to hold the
5331 NULL pointer which will be installed if som_canonicalize_reloc
5333 return sizeof (arelent *);
5336 /* Convert relocations from SOM (external) form into BFD internal
5337 form. Return the number of relocations. */
5340 som_canonicalize_reloc (bfd *abfd,
5348 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
5351 count = section->reloc_count;
5352 tblptr = section->relocation;
5355 *relptr++ = tblptr++;
5358 return section->reloc_count;
5361 extern const bfd_target hppa_som_vec;
5363 /* A hook to set up object file dependent section information. */
5366 som_new_section_hook (bfd *abfd, asection *newsect)
5368 if (!newsect->used_by_bfd)
5370 bfd_size_type amt = sizeof (struct som_section_data_struct);
5372 newsect->used_by_bfd = bfd_zalloc (abfd, amt);
5373 if (!newsect->used_by_bfd)
5376 newsect->alignment_power = 3;
5378 /* We allow more than three sections internally. */
5379 return _bfd_generic_new_section_hook (abfd, newsect);
5382 /* Copy any private info we understand from the input symbol
5383 to the output symbol. */
5386 som_bfd_copy_private_symbol_data (bfd *ibfd,
5391 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5392 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5394 /* One day we may try to grok other private data. */
5395 if (ibfd->xvec->flavour != bfd_target_som_flavour
5396 || obfd->xvec->flavour != bfd_target_som_flavour)
5399 /* The only private information we need to copy is the argument relocation
5401 output_symbol->tc_data.ap.hppa_arg_reloc =
5402 input_symbol->tc_data.ap.hppa_arg_reloc;
5407 /* Copy any private info we understand from the input section
5408 to the output section. */
5411 som_bfd_copy_private_section_data (bfd *ibfd,
5418 /* One day we may try to grok other private data. */
5419 if (ibfd->xvec->flavour != bfd_target_som_flavour
5420 || obfd->xvec->flavour != bfd_target_som_flavour
5421 || (!som_is_space (isection) && !som_is_subspace (isection)))
5424 amt = sizeof (struct som_copyable_section_data_struct);
5425 som_section_data (osection)->copy_data = bfd_zalloc (obfd, amt);
5426 if (som_section_data (osection)->copy_data == NULL)
5429 memcpy (som_section_data (osection)->copy_data,
5430 som_section_data (isection)->copy_data,
5431 sizeof (struct som_copyable_section_data_struct));
5433 /* Reparent if necessary. */
5434 if (som_section_data (osection)->copy_data->container)
5435 som_section_data (osection)->copy_data->container =
5436 som_section_data (osection)->copy_data->container->output_section;
5441 /* Copy any private info we understand from the input bfd
5442 to the output bfd. */
5445 som_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
5447 /* One day we may try to grok other private data. */
5448 if (ibfd->xvec->flavour != bfd_target_som_flavour
5449 || obfd->xvec->flavour != bfd_target_som_flavour)
5452 /* Allocate some memory to hold the data we need. */
5453 obj_som_exec_data (obfd) = bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5454 if (obj_som_exec_data (obfd) == NULL)
5457 /* Now copy the data. */
5458 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5459 sizeof (struct som_exec_data));
5464 /* Display the SOM header. */
5467 som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
5469 struct som_exec_auxhdr *exec_header;
5470 struct som_aux_id* auxhdr;
5475 exec_header = obj_som_exec_hdr (abfd);
5478 fprintf (f, _("\nExec Auxiliary Header\n"));
5479 fprintf (f, " flags ");
5480 auxhdr = &exec_header->som_auxhdr;
5481 if (auxhdr->mandatory)
5482 fprintf (f, "mandatory ");
5484 fprintf (f, "copy ");
5486 fprintf (f, "append ");
5488 fprintf (f, "ignore ");
5490 fprintf (f, " type %#x\n", auxhdr->type);
5491 fprintf (f, " length %#x\n", auxhdr->length);
5493 /* Note that, depending on the HP-UX version, the following fields can be
5494 either ints, or longs. */
5496 fprintf (f, " text size %#lx\n", (long) exec_header->exec_tsize);
5497 fprintf (f, " text memory offset %#lx\n", (long) exec_header->exec_tmem);
5498 fprintf (f, " text file offset %#lx\n", (long) exec_header->exec_tfile);
5499 fprintf (f, " data size %#lx\n", (long) exec_header->exec_dsize);
5500 fprintf (f, " data memory offset %#lx\n", (long) exec_header->exec_dmem);
5501 fprintf (f, " data file offset %#lx\n", (long) exec_header->exec_dfile);
5502 fprintf (f, " bss size %#lx\n", (long) exec_header->exec_bsize);
5503 fprintf (f, " entry point %#lx\n", (long) exec_header->exec_entry);
5504 fprintf (f, " loader flags %#lx\n", (long) exec_header->exec_flags);
5505 fprintf (f, " bss initializer %#lx\n", (long) exec_header->exec_bfill);
5511 /* Set backend info for sections which can not be described
5512 in the BFD data structures. */
5515 bfd_som_set_section_attributes (asection *section,
5518 unsigned int sort_key,
5521 /* Allocate memory to hold the magic information. */
5522 if (som_section_data (section)->copy_data == NULL)
5524 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5526 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5527 if (som_section_data (section)->copy_data == NULL)
5530 som_section_data (section)->copy_data->sort_key = sort_key;
5531 som_section_data (section)->copy_data->is_defined = defined;
5532 som_section_data (section)->copy_data->is_private = private;
5533 som_section_data (section)->copy_data->container = section;
5534 som_section_data (section)->copy_data->space_number = spnum;
5538 /* Set backend info for subsections which can not be described
5539 in the BFD data structures. */
5542 bfd_som_set_subsection_attributes (asection *section,
5543 asection *container,
5545 unsigned int sort_key,
5551 /* Allocate memory to hold the magic information. */
5552 if (som_section_data (section)->copy_data == NULL)
5554 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5556 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5557 if (som_section_data (section)->copy_data == NULL)
5560 som_section_data (section)->copy_data->sort_key = sort_key;
5561 som_section_data (section)->copy_data->access_control_bits = access_ctr;
5562 som_section_data (section)->copy_data->quadrant = quadrant;
5563 som_section_data (section)->copy_data->container = container;
5564 som_section_data (section)->copy_data->is_comdat = comdat;
5565 som_section_data (section)->copy_data->is_common = common;
5566 som_section_data (section)->copy_data->dup_common = dup_common;
5570 /* Set the full SOM symbol type. SOM needs far more symbol information
5571 than any other object file format I'm aware of. It is mandatory
5572 to be able to know if a symbol is an entry point, millicode, data,
5573 code, absolute, storage request, or procedure label. If you get
5574 the symbol type wrong your program will not link. */
5577 bfd_som_set_symbol_type (asymbol *symbol, unsigned int type)
5579 som_symbol_data (symbol)->som_type = type;
5582 /* Attach an auxiliary header to the BFD backend so that it may be
5583 written into the object file. */
5586 bfd_som_attach_aux_hdr (bfd *abfd, int type, char *string)
5590 if (type == VERSION_AUX_ID)
5592 size_t len = strlen (string);
5596 pad = (4 - (len % 4));
5597 amt = sizeof (struct som_string_auxhdr) + len + pad;
5598 obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
5599 if (!obj_som_version_hdr (abfd))
5601 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5602 obj_som_version_hdr (abfd)->header_id.length = 4 + len + pad;
5603 obj_som_version_hdr (abfd)->string_length = len;
5604 memcpy (obj_som_version_hdr (abfd)->string, string, len);
5605 memset (obj_som_version_hdr (abfd)->string + len, 0, pad);
5607 else if (type == COPYRIGHT_AUX_ID)
5609 int len = strlen (string);
5613 pad = (4 - (len % 4));
5614 amt = sizeof (struct som_string_auxhdr) + len + pad;
5615 obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
5616 if (!obj_som_copyright_hdr (abfd))
5618 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5619 obj_som_copyright_hdr (abfd)->header_id.length = len + pad + 4;
5620 obj_som_copyright_hdr (abfd)->string_length = len;
5621 memcpy (obj_som_copyright_hdr (abfd)->string, string, len);
5622 memset (obj_som_copyright_hdr (abfd)->string + len, 0, pad);
5627 /* Attach a compilation unit header to the BFD backend so that it may be
5628 written into the object file. */
5631 bfd_som_attach_compilation_unit (bfd *abfd,
5633 const char *language_name,
5634 const char *product_id,
5635 const char *version_id)
5637 struct som_compilation_unit *n;
5639 n = (struct som_compilation_unit *) bfd_zalloc
5640 (abfd, (bfd_size_type) sizeof (*n));
5647 n->f.name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5648 if (n->f.name == NULL) \
5650 strcpy (n->f.name, f); \
5654 STRDUP (language_name);
5655 STRDUP (product_id);
5656 STRDUP (version_id);
5660 obj_som_compilation_unit (abfd) = n;
5666 som_get_section_contents (bfd *abfd,
5670 bfd_size_type count)
5672 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5674 if ((bfd_size_type) (offset+count) > section->size
5675 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5676 || bfd_bread (location, count, abfd) != count)
5677 return FALSE; /* On error. */
5682 som_set_section_contents (bfd *abfd,
5684 const void *location,
5686 bfd_size_type count)
5688 if (! abfd->output_has_begun)
5690 /* Set up fixed parts of the file, space, and subspace headers.
5691 Notify the world that output has begun. */
5692 som_prep_headers (abfd);
5693 abfd->output_has_begun = TRUE;
5694 /* Start writing the object file. This include all the string
5695 tables, fixup streams, and other portions of the object file. */
5696 som_begin_writing (abfd);
5699 /* Only write subspaces which have "real" contents (eg. the contents
5700 are not generated at run time by the OS). */
5701 if (!som_is_subspace (section)
5702 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5705 /* Seek to the proper offset within the object file and write the
5707 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5708 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5711 if (bfd_bwrite (location, count, abfd) != count)
5717 som_set_arch_mach (bfd *abfd,
5718 enum bfd_architecture arch,
5719 unsigned long machine)
5721 /* Allow any architecture to be supported by the SOM backend. */
5722 return bfd_default_set_arch_mach (abfd, arch, machine);
5726 som_find_nearest_line (bfd *abfd,
5730 const char **filename_ptr,
5731 const char **functionname_ptr,
5732 unsigned int *line_ptr,
5733 unsigned int *discriminator_ptr)
5740 if (discriminator_ptr)
5741 *discriminator_ptr = 0;
5743 if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
5744 & found, filename_ptr,
5745 functionname_ptr, line_ptr,
5746 & somdata (abfd).line_info))
5752 if (symbols == NULL)
5755 /* Fallback: find function name from symbols table. */
5759 for (p = symbols; *p != NULL; p++)
5761 som_symbol_type *q = (som_symbol_type *) *p;
5763 if (q->som_type == SYMBOL_TYPE_ENTRY
5764 && q->symbol.section == section
5765 && q->symbol.value >= low_func
5766 && q->symbol.value <= offset)
5768 func = (asymbol *) q;
5769 low_func = q->symbol.value;
5776 *filename_ptr = NULL;
5777 *functionname_ptr = bfd_asymbol_name (func);
5784 som_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
5785 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5787 _bfd_error_handler (_("som_sizeof_headers unimplemented"));
5792 /* Return the single-character symbol type corresponding to
5793 SOM section S, or '?' for an unknown SOM section. */
5796 som_section_type (const char *s)
5798 const struct section_to_type *t;
5800 for (t = &stt[0]; t->section; t++)
5801 if (!strcmp (s, t->section))
5807 som_decode_symclass (asymbol *symbol)
5811 if (bfd_is_com_section (symbol->section))
5813 if (bfd_is_und_section (symbol->section))
5815 if (symbol->flags & BSF_WEAK)
5817 /* If weak, determine if it's specifically an object
5818 or non-object weak. */
5819 if (symbol->flags & BSF_OBJECT)
5827 if (bfd_is_ind_section (symbol->section))
5829 if (symbol->flags & BSF_WEAK)
5831 /* If weak, determine if it's specifically an object
5832 or non-object weak. */
5833 if (symbol->flags & BSF_OBJECT)
5838 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5841 if (bfd_is_abs_section (symbol->section)
5842 || (som_symbol_data (symbol) != NULL
5843 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5845 else if (symbol->section)
5846 c = som_section_type (symbol->section->name);
5849 if (symbol->flags & BSF_GLOBAL)
5854 /* Return information about SOM symbol SYMBOL in RET. */
5857 som_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
5861 ret->type = som_decode_symclass (symbol);
5862 if (ret->type != 'U')
5863 ret->value = symbol->value + symbol->section->vma;
5866 ret->name = symbol->name;
5869 /* Count the number of symbols in the archive symbol table. Necessary
5870 so that we can allocate space for all the carsyms at once. */
5873 som_bfd_count_ar_symbols (bfd *abfd,
5874 struct som_lst_header *lst_header,
5878 unsigned char *hash_table;
5880 file_ptr lst_filepos;
5882 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5884 amt = lst_header->hash_size * 4;
5885 hash_table = bfd_malloc (amt);
5886 if (hash_table == NULL && amt != 0)
5889 /* Don't forget to initialize the counter! */
5892 /* Read in the hash table. The has table is an array of 32bit file offsets
5893 which point to the hash chains. */
5894 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5897 /* Walk each chain counting the number of symbols found on that particular
5899 for (i = 0; i < lst_header->hash_size; i++)
5901 struct som_external_lst_symbol_record ext_lst_symbol;
5902 unsigned int hash_val = bfd_getb32 (hash_table + 4 * i);
5904 /* An empty chain has zero as it's file offset. */
5908 /* Seek to the first symbol in this hash chain. */
5909 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
5912 /* Read in this symbol and update the counter. */
5913 amt = sizeof (ext_lst_symbol);
5914 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
5919 /* Now iterate through the rest of the symbols on this chain. */
5922 unsigned int next_entry = bfd_getb32 (ext_lst_symbol.next_entry);
5924 if (next_entry == 0)
5927 /* Seek to the next symbol. */
5928 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
5931 /* Read the symbol in and update the counter. */
5932 amt = sizeof (ext_lst_symbol);
5933 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
5939 if (hash_table != NULL)
5944 if (hash_table != NULL)
5949 /* Fill in the canonical archive symbols (SYMS) from the archive described
5950 by ABFD and LST_HEADER. */
5953 som_bfd_fill_in_ar_symbols (bfd *abfd,
5954 struct som_lst_header *lst_header,
5958 carsym *set = syms[0];
5959 unsigned char *hash_table;
5960 struct som_external_som_entry *som_dict = NULL;
5962 file_ptr lst_filepos;
5963 unsigned int string_loc;
5965 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5966 amt = lst_header->hash_size * 4;
5967 hash_table = bfd_malloc (amt);
5968 if (hash_table == NULL && amt != 0)
5971 /* Read in the hash table. The has table is an array of 32bit file offsets
5972 which point to the hash chains. */
5973 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5976 /* Seek to and read in the SOM dictionary. We will need this to fill
5977 in the carsym's filepos field. */
5978 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5981 amt = lst_header->module_count * sizeof (struct som_external_som_entry);
5982 som_dict = bfd_malloc (amt);
5983 if (som_dict == NULL && amt != 0)
5986 if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
5989 string_loc = lst_header->string_loc;
5991 /* Walk each chain filling in the carsyms as we go along. */
5992 for (i = 0; i < lst_header->hash_size; i++)
5994 struct som_external_lst_symbol_record lst_symbol;
5995 unsigned int hash_val;
5997 unsigned char ext_len[4];
5999 /* An empty chain has zero as it's file offset. */
6000 hash_val = bfd_getb32 (hash_table + 4 * i);
6004 /* Seek to and read the first symbol on the chain. */
6005 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
6008 amt = sizeof (lst_symbol);
6009 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
6012 /* Get the name of the symbol, first get the length which is stored
6013 as a 32bit integer just before the symbol.
6015 One might ask why we don't just read in the entire string table
6016 and index into it. Well, according to the SOM ABI the string
6017 index can point *anywhere* in the archive to save space, so just
6018 using the string table would not be safe. */
6019 if (bfd_seek (abfd, (lst_filepos + string_loc
6020 + bfd_getb32 (lst_symbol.name) - 4), SEEK_SET) != 0)
6023 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
6025 len = bfd_getb32 (ext_len);
6027 /* Allocate space for the name and null terminate it too. */
6028 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6031 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
6036 /* Fill in the file offset. Note that the "location" field points
6037 to the SOM itself, not the ar_hdr in front of it. */
6039 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6040 - sizeof (struct ar_hdr);
6042 /* Go to the next symbol. */
6045 /* Iterate through the rest of the chain. */
6048 unsigned int next_entry = bfd_getb32 (lst_symbol.next_entry);
6050 if (next_entry == 0)
6053 /* Seek to the next symbol and read it in. */
6054 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
6057 amt = sizeof (lst_symbol);
6058 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
6061 /* Seek to the name length & string and read them in. */
6062 if (bfd_seek (abfd, lst_filepos + string_loc
6063 + bfd_getb32 (lst_symbol.name) - 4, SEEK_SET) != 0)
6066 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
6068 len = bfd_getb32 (ext_len);
6070 /* Allocate space for the name and null terminate it too. */
6071 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6075 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
6079 /* Fill in the file offset. Note that the "location" field points
6080 to the SOM itself, not the ar_hdr in front of it. */
6082 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6083 - sizeof (struct ar_hdr);
6085 /* Go on to the next symbol. */
6089 /* If we haven't died by now, then we successfully read the entire
6090 archive symbol table. */
6091 if (hash_table != NULL)
6093 if (som_dict != NULL)
6098 if (hash_table != NULL)
6100 if (som_dict != NULL)
6105 /* Read in the LST from the archive. */
6108 som_slurp_armap (bfd *abfd)
6110 struct som_external_lst_header ext_lst_header;
6111 struct som_lst_header lst_header;
6112 struct ar_hdr ar_header;
6113 unsigned int parsed_size;
6114 struct artdata *ardata = bfd_ardata (abfd);
6116 bfd_size_type amt = 16;
6117 int i = bfd_bread ((void *) nextname, amt, abfd);
6119 /* Special cases. */
6125 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
6128 /* For archives without .o files there is no symbol table. */
6129 if (! CONST_STRNEQ (nextname, "/ "))
6131 bfd_has_map (abfd) = FALSE;
6135 /* Read in and sanity check the archive header. */
6136 amt = sizeof (struct ar_hdr);
6137 if (bfd_bread ((void *) &ar_header, amt, abfd) != amt)
6140 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
6142 bfd_set_error (bfd_error_malformed_archive);
6146 /* How big is the archive symbol table entry? */
6148 parsed_size = strtol (ar_header.ar_size, NULL, 10);
6151 bfd_set_error (bfd_error_malformed_archive);
6155 /* Save off the file offset of the first real user data. */
6156 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
6158 /* Read in the library symbol table. We'll make heavy use of this
6159 in just a minute. */
6160 amt = sizeof (struct som_external_lst_header);
6161 if (bfd_bread ((void *) &ext_lst_header, amt, abfd) != amt)
6164 som_swap_lst_header_in (&ext_lst_header, &lst_header);
6167 if (lst_header.a_magic != LIBMAGIC)
6169 bfd_set_error (bfd_error_malformed_archive);
6173 /* Count the number of symbols in the library symbol table. */
6174 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
6177 /* Get back to the start of the library symbol table. */
6178 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
6179 + sizeof (struct som_external_lst_header)),
6183 /* Initialize the cache and allocate space for the library symbols. */
6185 amt = ardata->symdef_count;
6186 amt *= sizeof (carsym);
6187 ardata->symdefs = bfd_alloc (abfd, amt);
6188 if (!ardata->symdefs)
6191 /* Now fill in the canonical archive symbols. */
6192 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
6195 /* Seek back to the "first" file in the archive. Note the "first"
6196 file may be the extended name table. */
6197 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
6200 /* Notify the generic archive code that we have a symbol map. */
6201 bfd_has_map (abfd) = TRUE;
6205 /* Begin preparing to write a SOM library symbol table.
6207 As part of the prep work we need to determine the number of symbols
6208 and the size of the associated string section. */
6211 som_bfd_prep_for_ar_write (bfd *abfd,
6212 unsigned int *num_syms,
6213 unsigned int *stringsize)
6215 bfd *curr_bfd = abfd->archive_head;
6217 /* Some initialization. */
6221 /* Iterate over each BFD within this archive. */
6222 while (curr_bfd != NULL)
6224 unsigned int curr_count, i;
6225 som_symbol_type *sym;
6227 /* Don't bother for non-SOM objects. */
6228 if (curr_bfd->format != bfd_object
6229 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6231 curr_bfd = curr_bfd->archive_next;
6235 /* Make sure the symbol table has been read, then snag a pointer
6236 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6237 but doing so avoids allocating lots of extra memory. */
6238 if (! som_slurp_symbol_table (curr_bfd))
6241 sym = obj_som_symtab (curr_bfd);
6242 curr_count = bfd_get_symcount (curr_bfd);
6244 /* Examine each symbol to determine if it belongs in the
6245 library symbol table. */
6246 for (i = 0; i < curr_count; i++, sym++)
6248 struct som_misc_symbol_info info;
6250 /* Derive SOM information from the BFD symbol. */
6251 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6253 /* Should we include this symbol? */
6254 if (info.symbol_type == ST_NULL
6255 || info.symbol_type == ST_SYM_EXT
6256 || info.symbol_type == ST_ARG_EXT)
6259 /* Only global symbols and unsatisfied commons. */
6260 if (info.symbol_scope != SS_UNIVERSAL
6261 && info.symbol_type != ST_STORAGE)
6264 /* Do no include undefined symbols. */
6265 if (bfd_is_und_section (sym->symbol.section))
6268 /* Bump the various counters, being careful to honor
6269 alignment considerations in the string table. */
6271 *stringsize += strlen (sym->symbol.name) + 5;
6272 while (*stringsize % 4)
6276 curr_bfd = curr_bfd->archive_next;
6281 /* Hash a symbol name based on the hashing algorithm presented in the
6285 som_bfd_ar_symbol_hash (asymbol *symbol)
6287 unsigned int len = strlen (symbol->name);
6289 /* Names with length 1 are special. */
6291 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
6293 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
6294 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
6297 /* Do the bulk of the work required to write the SOM library
6301 som_bfd_ar_write_symbol_stuff (bfd *abfd,
6303 unsigned int string_size,
6304 struct som_external_lst_header lst,
6307 char *strings = NULL, *p;
6308 struct som_external_lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
6310 unsigned char *hash_table = NULL;
6311 struct som_external_som_entry *som_dict = NULL;
6312 struct som_external_lst_symbol_record **last_hash_entry = NULL;
6313 unsigned int curr_som_offset, som_index = 0;
6315 unsigned int module_count;
6316 unsigned int hash_size;
6318 hash_size = bfd_getb32 (lst.hash_size);
6319 amt = hash_size * 4;
6320 hash_table = bfd_zmalloc (amt);
6321 if (hash_table == NULL && hash_size != 0)
6324 module_count = bfd_getb32 (lst.module_count);
6325 amt = module_count * sizeof (struct som_external_som_entry);
6326 som_dict = bfd_zmalloc (amt);
6327 if (som_dict == NULL && module_count != 0)
6330 amt = hash_size * sizeof (struct som_external_lst_symbol_record *);
6331 last_hash_entry = bfd_zmalloc (amt);
6332 if (last_hash_entry == NULL && hash_size != 0)
6335 /* Symbols have som_index fields, so we have to keep track of the
6336 index of each SOM in the archive.
6338 The SOM dictionary has (among other things) the absolute file
6339 position for the SOM which a particular dictionary entry
6340 describes. We have to compute that information as we iterate
6341 through the SOMs/symbols. */
6344 /* We add in the size of the archive header twice as the location
6345 in the SOM dictionary is the actual offset of the SOM, not the
6346 archive header before the SOM. */
6347 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + bfd_getb32 (lst.file_end);
6349 /* Make room for the archive header and the contents of the
6350 extended string table. Note that elength includes the size
6351 of the archive header for the extended name table! */
6353 curr_som_offset += elength;
6355 /* Make sure we're properly aligned. */
6356 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
6358 /* FIXME should be done with buffers just like everything else... */
6360 amt *= sizeof (struct som_external_lst_symbol_record);
6361 lst_syms = bfd_malloc (amt);
6362 if (lst_syms == NULL && nsyms != 0)
6364 strings = bfd_malloc ((bfd_size_type) string_size);
6365 if (strings == NULL && string_size != 0)
6369 curr_lst_sym = lst_syms;
6371 curr_bfd = abfd->archive_head;
6372 while (curr_bfd != NULL)
6374 unsigned int curr_count, i;
6375 som_symbol_type *sym;
6377 /* Don't bother for non-SOM objects. */
6378 if (curr_bfd->format != bfd_object
6379 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6381 curr_bfd = curr_bfd->archive_next;
6385 /* Make sure the symbol table has been read, then snag a pointer
6386 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6387 but doing so avoids allocating lots of extra memory. */
6388 if (! som_slurp_symbol_table (curr_bfd))
6391 sym = obj_som_symtab (curr_bfd);
6392 curr_count = bfd_get_symcount (curr_bfd);
6394 for (i = 0; i < curr_count; i++, sym++)
6396 struct som_misc_symbol_info info;
6397 struct som_external_lst_symbol_record *last;
6398 unsigned int symbol_pos;
6400 unsigned int symbol_key;
6403 /* Derive SOM information from the BFD symbol. */
6404 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6406 /* Should we include this symbol? */
6407 if (info.symbol_type == ST_NULL
6408 || info.symbol_type == ST_SYM_EXT
6409 || info.symbol_type == ST_ARG_EXT)
6412 /* Only global symbols and unsatisfied commons. */
6413 if (info.symbol_scope != SS_UNIVERSAL
6414 && info.symbol_type != ST_STORAGE)
6417 /* Do no include undefined symbols. */
6418 if (bfd_is_und_section (sym->symbol.section))
6421 /* If this is the first symbol from this SOM, then update
6422 the SOM dictionary too. */
6423 if (bfd_getb32 (som_dict[som_index].location) == 0)
6425 bfd_putb32 (curr_som_offset, som_dict[som_index].location);
6426 bfd_putb32 (arelt_size (curr_bfd), som_dict[som_index].length);
6429 symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6431 /* Fill in the lst symbol record. */
6433 if (info.secondary_def)
6434 flags |= LST_SYMBOL_SECONDARY_DEF;
6435 flags |= info.symbol_type << LST_SYMBOL_SYMBOL_TYPE_SH;
6436 flags |= info.symbol_scope << LST_SYMBOL_SYMBOL_SCOPE_SH;
6437 if (bfd_is_com_section (sym->symbol.section))
6438 flags |= LST_SYMBOL_IS_COMMON;
6439 if (info.dup_common)
6440 flags |= LST_SYMBOL_DUP_COMMON;
6441 flags |= 3 << LST_SYMBOL_XLEAST_SH;
6442 flags |= info.arg_reloc << LST_SYMBOL_ARG_RELOC_SH;
6443 bfd_putb32 (flags, curr_lst_sym->flags);
6444 bfd_putb32 (p - strings + 4, curr_lst_sym->name);
6445 bfd_putb32 (0, curr_lst_sym->qualifier_name);
6446 bfd_putb32 (info.symbol_info, curr_lst_sym->symbol_info);
6447 bfd_putb32 (info.symbol_value | info.priv_level,
6448 curr_lst_sym->symbol_value);
6449 bfd_putb32 (0, curr_lst_sym->symbol_descriptor);
6450 curr_lst_sym->reserved = 0;
6451 bfd_putb32 (som_index, curr_lst_sym->som_index);
6452 bfd_putb32 (symbol_key, curr_lst_sym->symbol_key);
6453 bfd_putb32 (0, curr_lst_sym->next_entry);
6455 /* Insert into the hash table. */
6457 (curr_lst_sym - lst_syms)
6458 * sizeof (struct som_external_lst_symbol_record)
6460 + module_count * sizeof (struct som_external_som_entry)
6461 + sizeof (struct som_external_lst_header);
6462 last = last_hash_entry[symbol_key % hash_size];
6465 /* There is already something at the head of this hash chain,
6466 so tack this symbol onto the end of the chain. */
6467 bfd_putb32 (symbol_pos, last->next_entry);
6470 /* First entry in this hash chain. */
6471 bfd_putb32 (symbol_pos, hash_table + 4 * (symbol_key % hash_size));
6473 /* Keep track of the last symbol we added to this chain so we can
6474 easily update its next_entry pointer. */
6475 last_hash_entry[symbol_key % hash_size] = curr_lst_sym;
6477 /* Update the string table. */
6478 slen = strlen (sym->symbol.name);
6479 bfd_put_32 (abfd, slen, p);
6481 slen++; /* Nul terminator. */
6482 memcpy (p, sym->symbol.name, slen);
6486 bfd_put_8 (abfd, 0, p);
6490 BFD_ASSERT (p <= strings + string_size);
6492 /* Head to the next symbol. */
6496 /* Keep track of where each SOM will finally reside; then look
6498 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6500 /* A particular object in the archive may have an odd length; the
6501 linker requires objects begin on an even boundary. So round
6502 up the current offset as necessary. */
6503 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6504 curr_bfd = curr_bfd->archive_next;
6508 /* Now scribble out the hash table. */
6509 amt = hash_size * 4;
6510 if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
6513 /* Then the SOM dictionary. */
6514 amt = module_count * sizeof (struct som_external_som_entry);
6515 if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
6518 /* The library symbols. */
6519 amt = nsyms * sizeof (struct som_external_lst_symbol_record);
6520 if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
6523 /* And finally the strings. */
6525 if (bfd_bwrite ((void *) strings, amt, abfd) != amt)
6528 if (hash_table != NULL)
6530 if (som_dict != NULL)
6532 if (last_hash_entry != NULL)
6533 free (last_hash_entry);
6534 if (lst_syms != NULL)
6536 if (strings != NULL)
6541 if (hash_table != NULL)
6543 if (som_dict != NULL)
6545 if (last_hash_entry != NULL)
6546 free (last_hash_entry);
6547 if (lst_syms != NULL)
6549 if (strings != NULL)
6555 /* Write out the LST for the archive.
6557 You'll never believe this is really how armaps are handled in SOM... */
6560 som_write_armap (bfd *abfd,
6561 unsigned int elength,
6562 struct orl *map ATTRIBUTE_UNUSED,
6563 unsigned int orl_count ATTRIBUTE_UNUSED,
6564 int stridx ATTRIBUTE_UNUSED)
6567 struct stat statbuf;
6568 unsigned int i, lst_size, nsyms, stringsize;
6570 struct som_external_lst_header lst;
6574 unsigned int module_count;
6576 /* We'll use this for the archive's date and mode later. */
6577 if (stat (abfd->filename, &statbuf) != 0)
6579 bfd_set_error (bfd_error_system_call);
6583 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6585 /* Account for the lst header first. */
6586 lst_size = sizeof (struct som_external_lst_header);
6588 /* Start building the LST header. */
6589 /* FIXME: Do we need to examine each element to determine the
6590 largest id number? */
6591 bfd_putb16 (CPU_PA_RISC1_0, &lst.system_id);
6592 bfd_putb16 (LIBMAGIC, &lst.a_magic);
6593 bfd_putb32 (VERSION_ID, &lst.version_id);
6594 bfd_putb32 (0, &lst.file_time.secs);
6595 bfd_putb32 (0, &lst.file_time.nanosecs);
6597 bfd_putb32 (lst_size, &lst.hash_loc);
6598 bfd_putb32 (SOM_LST_HASH_SIZE, &lst.hash_size);
6600 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6601 lst_size += 4 * SOM_LST_HASH_SIZE;
6603 /* We need to count the number of SOMs in this archive. */
6604 curr_bfd = abfd->archive_head;
6606 while (curr_bfd != NULL)
6608 /* Only true SOM objects count. */
6609 if (curr_bfd->format == bfd_object
6610 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6612 curr_bfd = curr_bfd->archive_next;
6614 bfd_putb32 (module_count, &lst.module_count);
6615 bfd_putb32 (module_count, &lst.module_limit);
6616 bfd_putb32 (lst_size, &lst.dir_loc);
6617 lst_size += sizeof (struct som_external_som_entry) * module_count;
6619 /* We don't support import/export tables, auxiliary headers,
6620 or free lists yet. Make the linker work a little harder
6621 to make our life easier. */
6623 bfd_putb32 (0, &lst.export_loc);
6624 bfd_putb32 (0, &lst.export_count);
6625 bfd_putb32 (0, &lst.import_loc);
6626 bfd_putb32 (0, &lst.aux_loc);
6627 bfd_putb32 (0, &lst.aux_size);
6629 /* Count how many symbols we will have on the hash chains and the
6630 size of the associated string table. */
6631 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6634 lst_size += sizeof (struct som_external_lst_symbol_record) * nsyms;
6636 /* For the string table. One day we might actually use this info
6637 to avoid small seeks/reads when reading archives. */
6638 bfd_putb32 (lst_size, &lst.string_loc);
6639 bfd_putb32 (stringsize, &lst.string_size);
6640 lst_size += stringsize;
6642 /* SOM ABI says this must be zero. */
6643 bfd_putb32 (0, &lst.free_list);
6644 bfd_putb32 (lst_size, &lst.file_end);
6646 /* Compute the checksum. Must happen after the entire lst header
6648 p = (unsigned char *) &lst;
6650 for (i = 0; i < sizeof (struct som_external_lst_header) - sizeof (int);
6652 csum ^= bfd_getb32 (&p[i]);
6653 bfd_putb32 (csum, &lst.checksum);
6655 sprintf (hdr.ar_name, "/ ");
6656 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%-12ld",
6657 bfd_ardata (abfd)->armap_timestamp);
6658 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld",
6660 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld",
6662 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-8o",
6663 (unsigned int)statbuf.st_mode);
6664 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10d",
6666 hdr.ar_fmag[0] = '`';
6667 hdr.ar_fmag[1] = '\012';
6669 /* Turn any nulls into spaces. */
6670 for (i = 0; i < sizeof (struct ar_hdr); i++)
6671 if (((char *) (&hdr))[i] == '\0')
6672 (((char *) (&hdr))[i]) = ' ';
6674 /* Scribble out the ar header. */
6675 amt = sizeof (struct ar_hdr);
6676 if (bfd_bwrite ((void *) &hdr, amt, abfd) != amt)
6679 /* Now scribble out the lst header. */
6680 amt = sizeof (struct som_external_lst_header);
6681 if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
6684 /* Build and write the armap. */
6685 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6692 /* Free all information we have cached for this BFD. We can always
6693 read it again later if we need it. */
6696 som_bfd_free_cached_info (bfd *abfd)
6700 if (bfd_get_format (abfd) != bfd_object)
6703 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6704 /* Free the native string and symbol tables. */
6705 FREE (obj_som_symtab (abfd));
6706 FREE (obj_som_stringtab (abfd));
6707 for (o = abfd->sections; o != NULL; o = o->next)
6709 /* Free the native relocations. */
6710 o->reloc_count = (unsigned) -1;
6711 FREE (som_section_data (o)->reloc_stream);
6712 /* Do not free the generic relocations as they are objalloc'ed. */
6719 /* End of miscellaneous support functions. */
6721 /* Linker support functions. */
6724 som_bfd_link_split_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
6726 return som_is_subspace (sec) && sec->size > 240000;
6729 #define som_find_line _bfd_nosymbols_find_line
6730 #define som_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string
6731 #define som_close_and_cleanup som_bfd_free_cached_info
6732 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6733 #define som_write_ar_hdr _bfd_generic_write_ar_hdr
6734 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6735 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6736 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6737 #define som_truncate_arname bfd_bsd_truncate_arname
6738 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6739 #define som_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
6740 #define som_update_armap_timestamp _bfd_bool_bfd_true
6741 #define som_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
6742 #define som_get_lineno _bfd_nosymbols_get_lineno
6743 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6744 #define som_read_minisymbols _bfd_generic_read_minisymbols
6745 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6746 #define som_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
6747 #define som_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
6748 #define som_bfd_relax_section bfd_generic_relax_section
6749 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6750 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6751 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6752 #define som_bfd_copy_link_hash_symbol_type \
6753 _bfd_generic_copy_link_hash_symbol_type
6754 #define som_bfd_final_link _bfd_generic_final_link
6755 #define som_bfd_gc_sections bfd_generic_gc_sections
6756 #define som_bfd_lookup_section_flags bfd_generic_lookup_section_flags
6757 #define som_bfd_merge_sections bfd_generic_merge_sections
6758 #define som_bfd_is_group_section bfd_generic_is_group_section
6759 #define som_bfd_discard_group bfd_generic_discard_group
6760 #define som_section_already_linked _bfd_generic_section_already_linked
6761 #define som_bfd_define_common_symbol bfd_generic_define_common_symbol
6762 #define som_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
6763 #define som_bfd_define_start_stop bfd_generic_define_start_stop
6764 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
6765 #define som_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
6766 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
6767 #define som_find_inliner_info _bfd_nosymbols_find_inliner_info
6768 #define som_bfd_link_check_relocs _bfd_generic_link_check_relocs
6769 #define som_set_reloc _bfd_generic_set_reloc
6771 const bfd_target hppa_som_vec =
6774 bfd_target_som_flavour,
6775 BFD_ENDIAN_BIG, /* Target byte order. */
6776 BFD_ENDIAN_BIG, /* Target headers byte order. */
6777 (HAS_RELOC | EXEC_P | /* Object flags. */
6778 HAS_LINENO | HAS_DEBUG |
6779 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6780 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
6781 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
6783 /* Leading_symbol_char: is the first char of a user symbol
6784 predictable, and if so what is it. */
6786 '/', /* AR_pad_char. */
6787 14, /* AR_max_namelen. */
6788 0, /* match priority. */
6789 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6790 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6791 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
6792 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6793 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6794 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
6796 som_object_p, /* bfd_check_format. */
6797 bfd_generic_archive_p,
6801 _bfd_bool_bfd_false_error,
6803 _bfd_generic_mkarchive,
6804 _bfd_bool_bfd_false_error
6807 _bfd_bool_bfd_false_error,
6808 som_write_object_contents,
6809 _bfd_write_archive_contents,
6810 _bfd_bool_bfd_false_error,
6814 BFD_JUMP_TABLE_GENERIC (som),
6815 BFD_JUMP_TABLE_COPY (som),
6816 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6817 BFD_JUMP_TABLE_ARCHIVE (som),
6818 BFD_JUMP_TABLE_SYMBOLS (som),
6819 BFD_JUMP_TABLE_RELOCS (som),
6820 BFD_JUMP_TABLE_WRITE (som),
6821 BFD_JUMP_TABLE_LINK (som),
6822 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),