1 /* bfd back-end for HP PA-RISC SOM objects.
2 Copyright (C) 1990-2014 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"
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);
2087 if (!space_strings && amt != 0)
2090 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
2093 if (bfd_bread (space_strings, amt, abfd) != amt)
2096 /* Loop over all of the space dictionaries, building up sections. */
2097 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
2099 struct som_space_dictionary_record space;
2100 struct som_external_space_dictionary_record ext_space;
2102 struct som_external_subspace_dictionary_record ext_subspace;
2103 struct som_subspace_dictionary_record subspace, save_subspace;
2104 unsigned int subspace_index;
2105 asection *space_asect;
2106 bfd_size_type space_size = 0;
2109 /* Read the space dictionary element. */
2111 (current_offset + file_hdr->space_location
2112 + space_index * sizeof (ext_space)),
2115 amt = sizeof ext_space;
2116 if (bfd_bread (&ext_space, amt, abfd) != amt)
2119 som_swap_space_dictionary_in (&ext_space, &space);
2121 /* Setup the space name string. */
2122 space_name = space.name + space_strings;
2124 /* Make a section out of it. */
2125 amt = strlen (space_name) + 1;
2126 newname = bfd_alloc (abfd, amt);
2129 strcpy (newname, space_name);
2131 space_asect = bfd_make_section_anyway (abfd, newname);
2135 if (space.is_loadable == 0)
2136 space_asect->flags |= SEC_DEBUGGING;
2138 /* Set up all the attributes for the space. */
2139 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
2140 space.is_private, space.sort_key,
2141 space.space_number))
2144 /* If the space has no subspaces, then we're done. */
2145 if (space.subspace_quantity == 0)
2148 /* Now, read in the first subspace for this space. */
2150 (current_offset + file_hdr->subspace_location
2151 + space.subspace_index * sizeof ext_subspace),
2154 amt = sizeof ext_subspace;
2155 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
2157 /* Seek back to the start of the subspaces for loop below. */
2159 (current_offset + file_hdr->subspace_location
2160 + space.subspace_index * sizeof ext_subspace),
2164 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2166 /* Setup the start address and file loc from the first subspace
2168 space_asect->vma = subspace.subspace_start;
2169 space_asect->filepos = subspace.file_loc_init_value + current_offset;
2170 space_asect->alignment_power = exact_log2 (subspace.alignment);
2171 if (space_asect->alignment_power == (unsigned) -1)
2174 /* Initialize save_subspace so we can reliably determine if this
2175 loop placed any useful values into it. */
2176 memset (&save_subspace, 0, sizeof (save_subspace));
2178 /* Loop over the rest of the subspaces, building up more sections. */
2179 for (subspace_index = 0; subspace_index < space.subspace_quantity;
2182 asection *subspace_asect;
2183 char *subspace_name;
2185 /* Read in the next subspace. */
2186 amt = sizeof ext_subspace;
2187 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
2190 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2192 /* Setup the subspace name string. */
2193 subspace_name = subspace.name + space_strings;
2195 amt = strlen (subspace_name) + 1;
2196 newname = bfd_alloc (abfd, amt);
2199 strcpy (newname, subspace_name);
2201 /* Make a section out of this subspace. */
2202 subspace_asect = bfd_make_section_anyway (abfd, newname);
2203 if (!subspace_asect)
2206 /* Store private information about the section. */
2207 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
2208 subspace.access_control_bits,
2213 subspace.dup_common))
2216 /* Keep an easy mapping between subspaces and sections.
2217 Note we do not necessarily read the subspaces in the
2218 same order in which they appear in the object file.
2220 So to make the target index come out correctly, we
2221 store the location of the subspace header in target
2222 index, then sort using the location of the subspace
2223 header as the key. Then we can assign correct
2224 subspace indices. */
2226 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2228 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2229 by the access_control_bits in the subspace header. */
2230 switch (subspace.access_control_bits >> 4)
2232 /* Readonly data. */
2234 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2239 subspace_asect->flags |= SEC_DATA;
2242 /* Readonly code and the gateways.
2243 Gateways have other attributes which do not map
2244 into anything BFD knows about. */
2250 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2253 /* dynamic (writable) code. */
2255 subspace_asect->flags |= SEC_CODE;
2259 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
2260 subspace_asect->flags |= SEC_LINK_ONCE;
2262 if (subspace.subspace_length > 0)
2263 subspace_asect->flags |= SEC_HAS_CONTENTS;
2265 if (subspace.is_loadable)
2266 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2268 subspace_asect->flags |= SEC_DEBUGGING;
2270 if (subspace.code_only)
2271 subspace_asect->flags |= SEC_CODE;
2273 /* Both file_loc_init_value and initialization_length will
2274 be zero for a BSS like subspace. */
2275 if (subspace.file_loc_init_value == 0
2276 && subspace.initialization_length == 0)
2277 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2279 /* This subspace has relocations.
2280 The fixup_request_quantity is a byte count for the number of
2281 entries in the relocation stream; it is not the actual number
2282 of relocations in the subspace. */
2283 if (subspace.fixup_request_quantity != 0)
2285 subspace_asect->flags |= SEC_RELOC;
2286 subspace_asect->rel_filepos = subspace.fixup_request_index;
2287 som_section_data (subspace_asect)->reloc_size
2288 = subspace.fixup_request_quantity;
2289 /* We can not determine this yet. When we read in the
2290 relocation table the correct value will be filled in. */
2291 subspace_asect->reloc_count = (unsigned) -1;
2294 /* Update save_subspace if appropriate. */
2295 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2296 save_subspace = subspace;
2298 subspace_asect->vma = subspace.subspace_start;
2299 subspace_asect->size = subspace.subspace_length;
2300 subspace_asect->filepos = (subspace.file_loc_init_value
2302 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
2303 if (subspace_asect->alignment_power == (unsigned) -1)
2306 /* Keep track of the accumulated sizes of the sections. */
2307 space_size += subspace.subspace_length;
2310 /* This can happen for a .o which defines symbols in otherwise
2312 if (!save_subspace.file_loc_init_value)
2313 space_asect->size = 0;
2316 if (file_hdr->a_magic != RELOC_MAGIC)
2318 /* Setup the size for the space section based upon the info
2319 in the last subspace of the space. */
2320 space_asect->size = (save_subspace.subspace_start
2322 + save_subspace.subspace_length);
2326 /* The subspace_start field is not initialised in relocatable
2327 only objects, so it cannot be used for length calculations.
2328 Instead we use the space_size value which we have been
2329 accumulating. This isn't an accurate estimate since it
2330 ignores alignment and ordering issues. */
2331 space_asect->size = space_size;
2335 /* Now that we've read in all the subspace records, we need to assign
2336 a target index to each subspace. */
2337 amt = total_subspaces;
2338 amt *= sizeof (asection *);
2339 subspace_sections = bfd_malloc (amt);
2340 if (subspace_sections == NULL)
2343 for (i = 0, section = abfd->sections; section; section = section->next)
2345 if (!som_is_subspace (section))
2348 subspace_sections[i] = section;
2351 qsort (subspace_sections, total_subspaces,
2352 sizeof (asection *), compare_subspaces);
2354 /* subspace_sections is now sorted in the order in which the subspaces
2355 appear in the object file. Assign an index to each one now. */
2356 for (i = 0; i < total_subspaces; i++)
2357 subspace_sections[i]->target_index = i;
2359 if (space_strings != NULL)
2360 free (space_strings);
2362 if (subspace_sections != NULL)
2363 free (subspace_sections);
2368 if (space_strings != NULL)
2369 free (space_strings);
2371 if (subspace_sections != NULL)
2372 free (subspace_sections);
2377 /* Read in a SOM object and make it into a BFD. */
2379 static const bfd_target *
2380 som_object_p (bfd *abfd)
2382 struct som_external_header ext_file_hdr;
2383 struct som_header file_hdr;
2384 struct som_exec_auxhdr *aux_hdr_ptr = NULL;
2385 unsigned long current_offset = 0;
2386 struct som_external_lst_header ext_lst_header;
2387 struct som_external_som_entry ext_som_entry;
2390 #define ENTRY_SIZE sizeof (struct som_external_som_entry)
2392 amt = sizeof (struct som_external_header);
2393 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
2395 if (bfd_get_error () != bfd_error_system_call)
2396 bfd_set_error (bfd_error_wrong_format);
2400 som_swap_header_in (&ext_file_hdr, &file_hdr);
2402 if (!_PA_RISC_ID (file_hdr.system_id))
2404 bfd_set_error (bfd_error_wrong_format);
2408 switch (file_hdr.a_magic)
2416 #ifdef SHARED_MAGIC_CNX
2417 case SHARED_MAGIC_CNX:
2422 /* Read the lst header and determine where the SOM directory begins. */
2424 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2426 if (bfd_get_error () != bfd_error_system_call)
2427 bfd_set_error (bfd_error_wrong_format);
2431 amt = sizeof (struct som_external_lst_header);
2432 if (bfd_bread (&ext_lst_header, amt, abfd) != amt)
2434 if (bfd_get_error () != bfd_error_system_call)
2435 bfd_set_error (bfd_error_wrong_format);
2439 /* Position to and read the first directory entry. */
2440 loc = bfd_getb32 (ext_lst_header.dir_loc);
2441 if (bfd_seek (abfd, loc, SEEK_SET) != 0)
2443 if (bfd_get_error () != bfd_error_system_call)
2444 bfd_set_error (bfd_error_wrong_format);
2449 if (bfd_bread (&ext_som_entry, amt, abfd) != amt)
2451 if (bfd_get_error () != bfd_error_system_call)
2452 bfd_set_error (bfd_error_wrong_format);
2456 /* Now position to the first SOM. */
2457 current_offset = bfd_getb32 (ext_som_entry.location);
2458 if (bfd_seek (abfd, current_offset, SEEK_SET) != 0)
2460 if (bfd_get_error () != bfd_error_system_call)
2461 bfd_set_error (bfd_error_wrong_format);
2465 /* And finally, re-read the som header. */
2466 amt = sizeof (struct som_external_header);
2467 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
2469 if (bfd_get_error () != bfd_error_system_call)
2470 bfd_set_error (bfd_error_wrong_format);
2474 som_swap_header_in (&ext_file_hdr, &file_hdr);
2479 bfd_set_error (bfd_error_wrong_format);
2483 if (file_hdr.version_id != OLD_VERSION_ID
2484 && file_hdr.version_id != NEW_VERSION_ID)
2486 bfd_set_error (bfd_error_wrong_format);
2490 /* If the aux_header_size field in the file header is zero, then this
2491 object is an incomplete executable (a .o file). Do not try to read
2492 a non-existant auxiliary header. */
2493 if (file_hdr.aux_header_size != 0)
2495 struct som_external_exec_auxhdr ext_exec_auxhdr;
2497 aux_hdr_ptr = bfd_zalloc (abfd,
2498 (bfd_size_type) sizeof (*aux_hdr_ptr));
2499 if (aux_hdr_ptr == NULL)
2501 amt = sizeof (struct som_external_exec_auxhdr);
2502 if (bfd_bread (&ext_exec_auxhdr, amt, abfd) != amt)
2504 if (bfd_get_error () != bfd_error_system_call)
2505 bfd_set_error (bfd_error_wrong_format);
2508 som_swap_exec_auxhdr_in (&ext_exec_auxhdr, aux_hdr_ptr);
2511 if (!setup_sections (abfd, &file_hdr, current_offset))
2513 /* setup_sections does not bubble up a bfd error code. */
2514 bfd_set_error (bfd_error_bad_value);
2518 /* This appears to be a valid SOM object. Do some initialization. */
2519 return som_object_setup (abfd, &file_hdr, aux_hdr_ptr, current_offset);
2522 /* Create a SOM object. */
2525 som_mkobject (bfd *abfd)
2527 /* Allocate memory to hold backend information. */
2528 abfd->tdata.som_data = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2529 if (abfd->tdata.som_data == NULL)
2534 /* Initialize some information in the file header. This routine makes
2535 not attempt at doing the right thing for a full executable; it
2536 is only meant to handle relocatable objects. */
2539 som_prep_headers (bfd *abfd)
2541 struct som_header *file_hdr;
2543 bfd_size_type amt = sizeof (struct som_header);
2545 /* Make and attach a file header to the BFD. */
2546 file_hdr = bfd_zalloc (abfd, amt);
2547 if (file_hdr == NULL)
2549 obj_som_file_hdr (abfd) = file_hdr;
2551 if (abfd->flags & (EXEC_P | DYNAMIC))
2553 /* Make and attach an exec header to the BFD. */
2554 amt = sizeof (struct som_exec_auxhdr);
2555 obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
2556 if (obj_som_exec_hdr (abfd) == NULL)
2559 if (abfd->flags & D_PAGED)
2560 file_hdr->a_magic = DEMAND_MAGIC;
2561 else if (abfd->flags & WP_TEXT)
2562 file_hdr->a_magic = SHARE_MAGIC;
2564 else if (abfd->flags & DYNAMIC)
2565 file_hdr->a_magic = SHL_MAGIC;
2568 file_hdr->a_magic = EXEC_MAGIC;
2571 file_hdr->a_magic = RELOC_MAGIC;
2573 /* These fields are optional, and embedding timestamps is not always
2574 a wise thing to do, it makes comparing objects during a multi-stage
2575 bootstrap difficult. */
2576 file_hdr->file_time.secs = 0;
2577 file_hdr->file_time.nanosecs = 0;
2579 file_hdr->entry_space = 0;
2580 file_hdr->entry_subspace = 0;
2581 file_hdr->entry_offset = 0;
2582 file_hdr->presumed_dp = 0;
2584 /* Now iterate over the sections translating information from
2585 BFD sections to SOM spaces/subspaces. */
2586 for (section = abfd->sections; section != NULL; section = section->next)
2588 /* Ignore anything which has not been marked as a space or
2590 if (!som_is_space (section) && !som_is_subspace (section))
2593 if (som_is_space (section))
2595 /* Allocate space for the space dictionary. */
2596 amt = sizeof (struct som_space_dictionary_record);
2597 som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
2598 if (som_section_data (section)->space_dict == NULL)
2600 /* Set space attributes. Note most attributes of SOM spaces
2601 are set based on the subspaces it contains. */
2602 som_section_data (section)->space_dict->loader_fix_index = -1;
2603 som_section_data (section)->space_dict->init_pointer_index = -1;
2605 /* Set more attributes that were stuffed away in private data. */
2606 som_section_data (section)->space_dict->sort_key =
2607 som_section_data (section)->copy_data->sort_key;
2608 som_section_data (section)->space_dict->is_defined =
2609 som_section_data (section)->copy_data->is_defined;
2610 som_section_data (section)->space_dict->is_private =
2611 som_section_data (section)->copy_data->is_private;
2612 som_section_data (section)->space_dict->space_number =
2613 som_section_data (section)->copy_data->space_number;
2617 /* Allocate space for the subspace dictionary. */
2618 amt = sizeof (struct som_subspace_dictionary_record);
2619 som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
2620 if (som_section_data (section)->subspace_dict == NULL)
2623 /* Set subspace attributes. Basic stuff is done here, additional
2624 attributes are filled in later as more information becomes
2626 if (section->flags & SEC_ALLOC)
2627 som_section_data (section)->subspace_dict->is_loadable = 1;
2629 if (section->flags & SEC_CODE)
2630 som_section_data (section)->subspace_dict->code_only = 1;
2632 som_section_data (section)->subspace_dict->subspace_start =
2634 som_section_data (section)->subspace_dict->subspace_length =
2636 som_section_data (section)->subspace_dict->initialization_length =
2638 som_section_data (section)->subspace_dict->alignment =
2639 1 << section->alignment_power;
2641 /* Set more attributes that were stuffed away in private data. */
2642 som_section_data (section)->subspace_dict->sort_key =
2643 som_section_data (section)->copy_data->sort_key;
2644 som_section_data (section)->subspace_dict->access_control_bits =
2645 som_section_data (section)->copy_data->access_control_bits;
2646 som_section_data (section)->subspace_dict->quadrant =
2647 som_section_data (section)->copy_data->quadrant;
2648 som_section_data (section)->subspace_dict->is_comdat =
2649 som_section_data (section)->copy_data->is_comdat;
2650 som_section_data (section)->subspace_dict->is_common =
2651 som_section_data (section)->copy_data->is_common;
2652 som_section_data (section)->subspace_dict->dup_common =
2653 som_section_data (section)->copy_data->dup_common;
2659 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2662 som_is_space (asection *section)
2664 /* If no copy data is available, then it's neither a space nor a
2666 if (som_section_data (section)->copy_data == NULL)
2669 /* If the containing space isn't the same as the given section,
2670 then this isn't a space. */
2671 if (som_section_data (section)->copy_data->container != section
2672 && (som_section_data (section)->copy_data->container->output_section
2676 /* OK. Must be a space. */
2680 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2683 som_is_subspace (asection *section)
2685 /* If no copy data is available, then it's neither a space nor a
2687 if (som_section_data (section)->copy_data == NULL)
2690 /* If the containing space is the same as the given section,
2691 then this isn't a subspace. */
2692 if (som_section_data (section)->copy_data->container == section
2693 || (som_section_data (section)->copy_data->container->output_section
2697 /* OK. Must be a subspace. */
2701 /* Return TRUE if the given space contains the given subspace. It
2702 is safe to assume space really is a space, and subspace really
2706 som_is_container (asection *space, asection *subspace)
2708 return (som_section_data (subspace)->copy_data->container == space)
2709 || (som_section_data (subspace)->copy_data->container->output_section
2713 /* Count and return the number of spaces attached to the given BFD. */
2715 static unsigned long
2716 som_count_spaces (bfd *abfd)
2721 for (section = abfd->sections; section != NULL; section = section->next)
2722 count += som_is_space (section);
2727 /* Count the number of subspaces attached to the given BFD. */
2729 static unsigned long
2730 som_count_subspaces (bfd *abfd)
2735 for (section = abfd->sections; section != NULL; section = section->next)
2736 count += som_is_subspace (section);
2741 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2743 We desire symbols to be ordered starting with the symbol with the
2744 highest relocation count down to the symbol with the lowest relocation
2745 count. Doing so compacts the relocation stream. */
2748 compare_syms (const void *arg1, const void *arg2)
2750 asymbol **sym1 = (asymbol **) arg1;
2751 asymbol **sym2 = (asymbol **) arg2;
2752 unsigned int count1, count2;
2754 /* Get relocation count for each symbol. Note that the count
2755 is stored in the udata pointer for section symbols! */
2756 if ((*sym1)->flags & BSF_SECTION_SYM)
2757 count1 = (*sym1)->udata.i;
2759 count1 = som_symbol_data (*sym1)->reloc_count;
2761 if ((*sym2)->flags & BSF_SECTION_SYM)
2762 count2 = (*sym2)->udata.i;
2764 count2 = som_symbol_data (*sym2)->reloc_count;
2766 /* Return the appropriate value. */
2767 if (count1 < count2)
2769 else if (count1 > count2)
2774 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2778 compare_subspaces (const void *arg1, const void *arg2)
2780 asection **subspace1 = (asection **) arg1;
2781 asection **subspace2 = (asection **) arg2;
2783 if ((*subspace1)->target_index < (*subspace2)->target_index)
2785 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2791 /* Perform various work in preparation for emitting the fixup stream. */
2794 som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
2798 asymbol **sorted_syms;
2801 /* Most SOM relocations involving a symbol have a length which is
2802 dependent on the index of the symbol. So symbols which are
2803 used often in relocations should have a small index. */
2805 /* First initialize the counters for each symbol. */
2806 for (i = 0; i < num_syms; i++)
2808 /* Handle a section symbol; these have no pointers back to the
2809 SOM symbol info. So we just use the udata field to hold the
2810 relocation count. */
2811 if (som_symbol_data (syms[i]) == NULL
2812 || syms[i]->flags & BSF_SECTION_SYM)
2814 syms[i]->flags |= BSF_SECTION_SYM;
2815 syms[i]->udata.i = 0;
2818 som_symbol_data (syms[i])->reloc_count = 0;
2821 /* Now that the counters are initialized, make a weighted count
2822 of how often a given symbol is used in a relocation. */
2823 for (section = abfd->sections; section != NULL; section = section->next)
2827 /* Does this section have any relocations? */
2828 if ((int) section->reloc_count <= 0)
2831 /* Walk through each relocation for this section. */
2832 for (j = 1; j < (int) section->reloc_count; j++)
2834 arelent *reloc = section->orelocation[j];
2837 /* A relocation against a symbol in the *ABS* section really
2838 does not have a symbol. Likewise if the symbol isn't associated
2839 with any section. */
2840 if (reloc->sym_ptr_ptr == NULL
2841 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2844 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2845 and R_CODE_ONE_SYMBOL relocations to come first. These
2846 two relocations have single byte versions if the symbol
2847 index is very small. */
2848 if (reloc->howto->type == R_DP_RELATIVE
2849 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2854 /* Handle section symbols by storing the count in the udata
2855 field. It will not be used and the count is very important
2856 for these symbols. */
2857 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2859 (*reloc->sym_ptr_ptr)->udata.i =
2860 (*reloc->sym_ptr_ptr)->udata.i + scale;
2864 /* A normal symbol. Increment the count. */
2865 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2869 /* Sort a copy of the symbol table, rather than the canonical
2870 output symbol table. */
2872 amt *= sizeof (asymbol *);
2873 sorted_syms = bfd_zalloc (abfd, amt);
2874 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2875 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2876 obj_som_sorted_syms (abfd) = sorted_syms;
2878 /* Compute the symbol indexes, they will be needed by the relocation
2880 for (i = 0; i < num_syms; i++)
2882 /* A section symbol. Again, there is no pointer to backend symbol
2883 information, so we reuse the udata field again. */
2884 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2885 sorted_syms[i]->udata.i = i;
2887 som_symbol_data (sorted_syms[i])->index = i;
2892 som_write_fixups (bfd *abfd,
2893 unsigned long current_offset,
2894 unsigned int *total_reloc_sizep)
2897 /* Chunk of memory that we can use as buffer space, then throw
2899 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2901 unsigned int total_reloc_size = 0;
2902 unsigned int subspace_reloc_size = 0;
2903 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2904 asection *section = abfd->sections;
2907 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2910 /* All the fixups for a particular subspace are emitted in a single
2911 stream. All the subspaces for a particular space are emitted
2914 So, to get all the locations correct one must iterate through all the
2915 spaces, for each space iterate through its subspaces and output a
2917 for (i = 0; i < num_spaces; i++)
2919 asection *subsection;
2922 while (!som_is_space (section))
2923 section = section->next;
2925 /* Now iterate through each of its subspaces. */
2926 for (subsection = abfd->sections;
2928 subsection = subsection->next)
2931 unsigned int current_rounding_mode;
2932 #ifndef NO_PCREL_MODES
2933 unsigned int current_call_mode;
2936 /* Find a subspace of this space. */
2937 if (!som_is_subspace (subsection)
2938 || !som_is_container (section, subsection))
2941 /* If this subspace does not have real data, then we are
2942 finished with it. */
2943 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2945 som_section_data (subsection)->subspace_dict->fixup_request_index
2950 /* This subspace has some relocations. Put the relocation stream
2951 index into the subspace record. */
2952 som_section_data (subsection)->subspace_dict->fixup_request_index
2955 /* To make life easier start over with a clean slate for
2956 each subspace. Seek to the start of the relocation stream
2957 for this subspace in preparation for writing out its fixup
2959 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2962 /* Buffer space has already been allocated. Just perform some
2963 initialization here. */
2965 subspace_reloc_size = 0;
2967 som_initialize_reloc_queue (reloc_queue);
2968 current_rounding_mode = R_N_MODE;
2969 #ifndef NO_PCREL_MODES
2970 current_call_mode = R_SHORT_PCREL_MODE;
2973 /* Translate each BFD relocation into one or more SOM
2975 for (j = 0; j < subsection->reloc_count; j++)
2977 arelent *bfd_reloc = subsection->orelocation[j];
2981 /* Get the symbol number. Remember it's stored in a
2982 special place for section symbols. */
2983 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2984 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2986 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2988 /* If there is not enough room for the next couple relocations,
2989 then dump the current buffer contents now. Also reinitialize
2990 the relocation queue.
2992 No single BFD relocation could ever translate into more
2993 than 100 bytes of SOM relocations (20bytes is probably the
2994 upper limit, but leave lots of space for growth). */
2995 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2997 amt = p - tmp_space;
2998 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
3002 som_initialize_reloc_queue (reloc_queue);
3005 /* Emit R_NO_RELOCATION fixups to map any bytes which were
3007 skip = bfd_reloc->address - reloc_offset;
3008 p = som_reloc_skip (abfd, skip, p,
3009 &subspace_reloc_size, reloc_queue);
3011 /* Update reloc_offset for the next iteration.
3013 Many relocations do not consume input bytes. They
3014 are markers, or set state necessary to perform some
3015 later relocation. */
3016 switch (bfd_reloc->howto->type)
3036 #ifndef NO_PCREL_MODES
3037 case R_SHORT_PCREL_MODE:
3038 case R_LONG_PCREL_MODE:
3040 reloc_offset = bfd_reloc->address;
3044 reloc_offset = bfd_reloc->address + 4;
3048 /* Now the actual relocation we care about. */
3049 switch (bfd_reloc->howto->type)
3053 p = som_reloc_call (abfd, p, &subspace_reloc_size,
3054 bfd_reloc, sym_num, reloc_queue);
3057 case R_CODE_ONE_SYMBOL:
3059 /* Account for any addend. */
3060 if (bfd_reloc->addend)
3061 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3062 &subspace_reloc_size, reloc_queue);
3066 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
3067 subspace_reloc_size += 1;
3070 else if (sym_num < 0x100)
3072 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
3073 bfd_put_8 (abfd, sym_num, p + 1);
3074 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3077 else if (sym_num < 0x10000000)
3079 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
3080 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3081 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3082 p = try_prev_fixup (abfd, &subspace_reloc_size,
3090 /* Account for any addend. */
3091 if (bfd_reloc->addend)
3092 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3093 &subspace_reloc_size, reloc_queue);
3095 if (sym_num < 0x10000000)
3097 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3098 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3099 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3100 p = try_prev_fixup (abfd, &subspace_reloc_size,
3107 case R_DATA_ONE_SYMBOL:
3111 /* Account for any addend using R_DATA_OVERRIDE. */
3112 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
3113 && bfd_reloc->addend)
3114 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3115 &subspace_reloc_size, reloc_queue);
3117 if (sym_num < 0x100)
3119 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3120 bfd_put_8 (abfd, sym_num, p + 1);
3121 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3124 else if (sym_num < 0x10000000)
3126 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3127 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3128 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3129 p = try_prev_fixup (abfd, &subspace_reloc_size,
3139 arelent *tmp_reloc = NULL;
3140 bfd_put_8 (abfd, R_ENTRY, p);
3142 /* R_ENTRY relocations have 64 bits of associated
3143 data. Unfortunately the addend field of a bfd
3144 relocation is only 32 bits. So, we split up
3145 the 64bit unwind information and store part in
3146 the R_ENTRY relocation, and the rest in the R_EXIT
3148 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
3150 /* Find the next R_EXIT relocation. */
3151 for (tmp = j; tmp < subsection->reloc_count; tmp++)
3153 tmp_reloc = subsection->orelocation[tmp];
3154 if (tmp_reloc->howto->type == R_EXIT)
3158 if (tmp == subsection->reloc_count)
3161 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
3162 p = try_prev_fixup (abfd, &subspace_reloc_size,
3171 /* If this relocation requests the current rounding
3172 mode, then it is redundant. */
3173 if (bfd_reloc->howto->type != current_rounding_mode)
3175 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3176 subspace_reloc_size += 1;
3178 current_rounding_mode = bfd_reloc->howto->type;
3182 #ifndef NO_PCREL_MODES
3183 case R_LONG_PCREL_MODE:
3184 case R_SHORT_PCREL_MODE:
3185 if (bfd_reloc->howto->type != current_call_mode)
3187 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3188 subspace_reloc_size += 1;
3190 current_call_mode = bfd_reloc->howto->type;
3205 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3206 subspace_reloc_size += 1;
3211 /* The end of an exception handling region. The reloc's
3212 addend contains the offset of the exception handling
3214 if (bfd_reloc->addend == 0)
3215 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3216 else if (bfd_reloc->addend < 1024)
3218 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3219 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3220 p = try_prev_fixup (abfd, &subspace_reloc_size,
3225 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3226 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3227 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3228 p = try_prev_fixup (abfd, &subspace_reloc_size,
3234 /* The only time we generate R_COMP1, R_COMP2 and
3235 R_CODE_EXPR relocs is for the difference of two
3236 symbols. Hence we can cheat here. */
3237 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3238 bfd_put_8 (abfd, 0x44, p + 1);
3239 p = try_prev_fixup (abfd, &subspace_reloc_size,
3244 /* The only time we generate R_COMP1, R_COMP2 and
3245 R_CODE_EXPR relocs is for the difference of two
3246 symbols. Hence we can cheat here. */
3247 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3248 bfd_put_8 (abfd, 0x80, p + 1);
3249 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3250 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3251 p = try_prev_fixup (abfd, &subspace_reloc_size,
3257 /* The only time we generate R_COMP1, R_COMP2 and
3258 R_CODE_EXPR relocs is for the difference of two
3259 symbols. Hence we can cheat here. */
3260 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3261 subspace_reloc_size += 1;
3265 /* Put a "R_RESERVED" relocation in the stream if
3266 we hit something we do not understand. The linker
3267 will complain loudly if this ever happens. */
3269 bfd_put_8 (abfd, 0xff, p);
3270 subspace_reloc_size += 1;
3276 /* Last BFD relocation for a subspace has been processed.
3277 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3278 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
3279 p, &subspace_reloc_size, reloc_queue);
3281 /* Scribble out the relocations. */
3282 amt = p - tmp_space;
3283 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
3287 total_reloc_size += subspace_reloc_size;
3288 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3289 = subspace_reloc_size;
3291 section = section->next;
3293 *total_reloc_sizep = total_reloc_size;
3297 /* Write out the space/subspace string table. */
3300 som_write_space_strings (bfd *abfd,
3301 unsigned long current_offset,
3302 unsigned int *string_sizep)
3304 /* Chunk of memory that we can use as buffer space, then throw
3306 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3307 char *tmp_space = alloca (tmp_space_size);
3308 char *p = tmp_space;
3309 unsigned int strings_size = 0;
3313 /* Seek to the start of the space strings in preparation for writing
3315 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3318 /* Walk through all the spaces and subspaces (order is not important)
3319 building up and writing string table entries for their names. */
3320 for (section = abfd->sections; section != NULL; section = section->next)
3324 /* Only work with space/subspaces; avoid any other sections
3325 which might have been made (.text for example). */
3326 if (!som_is_space (section) && !som_is_subspace (section))
3329 /* Get the length of the space/subspace name. */
3330 length = strlen (section->name);
3332 /* If there is not enough room for the next entry, then dump the
3333 current buffer contents now and maybe allocate a larger
3334 buffer. Each entry will take 4 bytes to hold the string
3335 length + the string itself + null terminator. */
3336 if (p - tmp_space + 5 + length > tmp_space_size)
3338 /* Flush buffer before refilling or reallocating. */
3339 amt = p - tmp_space;
3340 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3343 /* Reallocate if now empty buffer still too small. */
3344 if (5 + length > tmp_space_size)
3346 /* Ensure a minimum growth factor to avoid O(n**2) space
3347 consumption for n strings. The optimal minimum
3348 factor seems to be 2, as no other value can guarantee
3349 wasting less than 50% space. (Note that we cannot
3350 deallocate space allocated by `alloca' without
3351 returning from this function.) The same technique is
3352 used a few more times below when a buffer is
3354 if (2 * tmp_space_size < length + 5)
3355 tmp_space_size = length + 5;
3357 tmp_space_size = 2 * tmp_space_size;
3358 tmp_space = alloca (tmp_space_size);
3361 /* Reset to beginning of the (possibly new) buffer space. */
3365 /* First element in a string table entry is the length of the
3366 string. Alignment issues are already handled. */
3367 bfd_put_32 (abfd, (bfd_vma) length, p);
3371 /* Record the index in the space/subspace records. */
3372 if (som_is_space (section))
3373 som_section_data (section)->space_dict->name = strings_size;
3375 som_section_data (section)->subspace_dict->name = strings_size;
3377 /* Next comes the string itself + a null terminator. */
3378 strcpy (p, section->name);
3380 strings_size += length + 1;
3382 /* Always align up to the next word boundary. */
3383 while (strings_size % 4)
3385 bfd_put_8 (abfd, 0, p);
3391 /* Done with the space/subspace strings. Write out any information
3392 contained in a partial block. */
3393 amt = p - tmp_space;
3394 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3396 *string_sizep = strings_size;
3400 /* Write out the symbol string table. */
3403 som_write_symbol_strings (bfd *abfd,
3404 unsigned long current_offset,
3406 unsigned int num_syms,
3407 unsigned int *string_sizep,
3408 struct som_compilation_unit *compilation_unit)
3412 /* Chunk of memory that we can use as buffer space, then throw
3414 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3415 char *tmp_space = alloca (tmp_space_size);
3416 char *p = tmp_space;
3418 unsigned int strings_size = 0;
3421 /* This gets a bit gruesome because of the compilation unit. The
3422 strings within the compilation unit are part of the symbol
3423 strings, but don't have symbol_dictionary entries. So, manually
3424 write them and update the compilation unit header. On input, the
3425 compilation unit header contains local copies of the strings.
3428 /* Seek to the start of the space strings in preparation for writing
3430 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3433 if (compilation_unit)
3435 for (i = 0; i < 4; i++)
3437 struct som_name_pt *name;
3443 name = &compilation_unit->name;
3446 name = &compilation_unit->language_name;
3449 name = &compilation_unit->product_id;
3452 name = &compilation_unit->version_id;
3458 length = strlen (name->name);
3460 /* If there is not enough room for the next entry, then dump
3461 the current buffer contents now and maybe allocate a
3463 if (p - tmp_space + 5 + length > tmp_space_size)
3465 /* Flush buffer before refilling or reallocating. */
3466 amt = p - tmp_space;
3467 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3470 /* Reallocate if now empty buffer still too small. */
3471 if (5 + length > tmp_space_size)
3473 /* See alloca above for discussion of new size. */
3474 if (2 * tmp_space_size < 5 + length)
3475 tmp_space_size = 5 + length;
3477 tmp_space_size = 2 * tmp_space_size;
3478 tmp_space = alloca (tmp_space_size);
3481 /* Reset to beginning of the (possibly new) buffer
3486 /* First element in a string table entry is the length of
3487 the string. This must always be 4 byte aligned. This is
3488 also an appropriate time to fill in the string index
3489 field in the symbol table entry. */
3490 bfd_put_32 (abfd, (bfd_vma) length, p);
3494 /* Next comes the string itself + a null terminator. */
3495 strcpy (p, name->name);
3497 name->strx = strings_size;
3500 strings_size += length + 1;
3502 /* Always align up to the next word boundary. */
3503 while (strings_size % 4)
3505 bfd_put_8 (abfd, 0, p);
3512 for (i = 0; i < num_syms; i++)
3514 size_t length = strlen (syms[i]->name);
3516 /* If there is not enough room for the next entry, then dump the
3517 current buffer contents now and maybe allocate a larger buffer. */
3518 if (p - tmp_space + 5 + length > tmp_space_size)
3520 /* Flush buffer before refilling or reallocating. */
3521 amt = p - tmp_space;
3522 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3525 /* Reallocate if now empty buffer still too small. */
3526 if (5 + length > tmp_space_size)
3528 /* See alloca above for discussion of new size. */
3529 if (2 * tmp_space_size < 5 + length)
3530 tmp_space_size = 5 + length;
3532 tmp_space_size = 2 * tmp_space_size;
3533 tmp_space = alloca (tmp_space_size);
3536 /* Reset to beginning of the (possibly new) buffer space. */
3540 /* First element in a string table entry is the length of the
3541 string. This must always be 4 byte aligned. This is also
3542 an appropriate time to fill in the string index field in the
3543 symbol table entry. */
3544 bfd_put_32 (abfd, (bfd_vma) length, p);
3548 /* Next comes the string itself + a null terminator. */
3549 strcpy (p, syms[i]->name);
3551 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3553 strings_size += length + 1;
3555 /* Always align up to the next word boundary. */
3556 while (strings_size % 4)
3558 bfd_put_8 (abfd, 0, p);
3564 /* Scribble out any partial block. */
3565 amt = p - tmp_space;
3566 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3569 *string_sizep = strings_size;
3573 /* Compute variable information to be placed in the SOM headers,
3574 space/subspace dictionaries, relocation streams, etc. Begin
3575 writing parts of the object file. */
3578 som_begin_writing (bfd *abfd)
3580 unsigned long current_offset = 0;
3581 unsigned int strings_size = 0;
3582 unsigned long num_spaces, num_subspaces, i;
3584 unsigned int total_subspaces = 0;
3585 struct som_exec_auxhdr *exec_header = NULL;
3587 /* The file header will always be first in an object file,
3588 everything else can be in random locations. To keep things
3589 "simple" BFD will lay out the object file in the manner suggested
3590 by the PRO ABI for PA-RISC Systems. */
3592 /* Before any output can really begin offsets for all the major
3593 portions of the object file must be computed. So, starting
3594 with the initial file header compute (and sometimes write)
3595 each portion of the object file. */
3597 /* Make room for the file header, it's contents are not complete
3598 yet, so it can not be written at this time. */
3599 current_offset += sizeof (struct som_external_header);
3601 /* Any auxiliary headers will follow the file header. Right now
3602 we support only the copyright and version headers. */
3603 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3604 obj_som_file_hdr (abfd)->aux_header_size = 0;
3605 if (abfd->flags & (EXEC_P | DYNAMIC))
3607 /* Parts of the exec header will be filled in later, so
3608 delay writing the header itself. Fill in the defaults,
3609 and write it later. */
3610 current_offset += sizeof (struct som_external_exec_auxhdr);
3611 obj_som_file_hdr (abfd)->aux_header_size
3612 += sizeof (struct som_external_exec_auxhdr);
3613 exec_header = obj_som_exec_hdr (abfd);
3614 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3615 exec_header->som_auxhdr.length = 40;
3617 if (obj_som_version_hdr (abfd) != NULL)
3619 struct som_external_string_auxhdr ext_string_auxhdr;
3622 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3625 /* Write the aux_id structure and the string length. */
3626 len = sizeof (struct som_external_string_auxhdr);
3627 obj_som_file_hdr (abfd)->aux_header_size += len;
3628 current_offset += len;
3629 som_swap_string_auxhdr_out
3630 (obj_som_version_hdr (abfd), &ext_string_auxhdr);
3631 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
3634 /* Write the version string. */
3635 len = obj_som_version_hdr (abfd)->header_id.length - 4;
3636 obj_som_file_hdr (abfd)->aux_header_size += len;
3637 current_offset += len;
3638 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->string, len, abfd)
3643 if (obj_som_copyright_hdr (abfd) != NULL)
3645 struct som_external_string_auxhdr ext_string_auxhdr;
3648 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3651 /* Write the aux_id structure and the string length. */
3652 len = sizeof (struct som_external_string_auxhdr);
3653 obj_som_file_hdr (abfd)->aux_header_size += len;
3654 current_offset += len;
3655 som_swap_string_auxhdr_out
3656 (obj_som_copyright_hdr (abfd), &ext_string_auxhdr);
3657 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
3660 /* Write the copyright string. */
3661 len = obj_som_copyright_hdr (abfd)->header_id.length - 4;
3662 obj_som_file_hdr (abfd)->aux_header_size += len;
3663 current_offset += len;
3664 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->string, len, abfd)
3669 /* Next comes the initialization pointers; we have no initialization
3670 pointers, so current offset does not change. */
3671 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3672 obj_som_file_hdr (abfd)->init_array_total = 0;
3674 /* Next are the space records. These are fixed length records.
3676 Count the number of spaces to determine how much room is needed
3677 in the object file for the space records.
3679 The names of the spaces are stored in a separate string table,
3680 and the index for each space into the string table is computed
3681 below. Therefore, it is not possible to write the space headers
3683 num_spaces = som_count_spaces (abfd);
3684 obj_som_file_hdr (abfd)->space_location = current_offset;
3685 obj_som_file_hdr (abfd)->space_total = num_spaces;
3687 num_spaces * sizeof (struct som_external_space_dictionary_record);
3689 /* Next are the subspace records. These are fixed length records.
3691 Count the number of subspaes to determine how much room is needed
3692 in the object file for the subspace records.
3694 A variety if fields in the subspace record are still unknown at
3695 this time (index into string table, fixup stream location/size, etc). */
3696 num_subspaces = som_count_subspaces (abfd);
3697 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3698 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3700 += num_subspaces * sizeof (struct som_external_subspace_dictionary_record);
3702 /* Next is the string table for the space/subspace names. We will
3703 build and write the string table on the fly. At the same time
3704 we will fill in the space/subspace name index fields. */
3706 /* The string table needs to be aligned on a word boundary. */
3707 if (current_offset % 4)
3708 current_offset += (4 - (current_offset % 4));
3710 /* Mark the offset of the space/subspace string table in the
3712 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3714 /* Scribble out the space strings. */
3715 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3718 /* Record total string table size in the header and update the
3720 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3721 current_offset += strings_size;
3723 /* Next is the compilation unit. */
3724 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3725 obj_som_file_hdr (abfd)->compiler_total = 0;
3726 if (obj_som_compilation_unit (abfd))
3728 obj_som_file_hdr (abfd)->compiler_total = 1;
3729 current_offset += sizeof (struct som_external_compilation_unit);
3732 /* Now compute the file positions for the loadable subspaces, taking
3733 care to make sure everything stays properly aligned. */
3735 section = abfd->sections;
3736 for (i = 0; i < num_spaces; i++)
3738 asection *subsection;
3740 unsigned int subspace_offset = 0;
3743 while (!som_is_space (section))
3744 section = section->next;
3747 /* Now look for all its subspaces. */
3748 for (subsection = abfd->sections;
3750 subsection = subsection->next)
3753 if (!som_is_subspace (subsection)
3754 || !som_is_container (section, subsection)
3755 || (subsection->flags & SEC_ALLOC) == 0)
3758 /* If this is the first subspace in the space, and we are
3759 building an executable, then take care to make sure all
3760 the alignments are correct and update the exec header. */
3762 && (abfd->flags & (EXEC_P | DYNAMIC)))
3764 /* Demand paged executables have each space aligned to a
3765 page boundary. Sharable executables (write-protected
3766 text) have just the private (aka data & bss) space aligned
3767 to a page boundary. Ugh. Not true for HPUX.
3769 The HPUX kernel requires the text to always be page aligned
3770 within the file regardless of the executable's type. */
3771 if (abfd->flags & (D_PAGED | DYNAMIC)
3772 || (subsection->flags & SEC_CODE)
3773 || ((abfd->flags & WP_TEXT)
3774 && (subsection->flags & SEC_DATA)))
3775 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3777 /* Update the exec header. */
3778 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3780 exec_header->exec_tmem = section->vma;
3781 exec_header->exec_tfile = current_offset;
3783 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3785 exec_header->exec_dmem = section->vma;
3786 exec_header->exec_dfile = current_offset;
3789 /* Keep track of exactly where we are within a particular
3790 space. This is necessary as the braindamaged HPUX
3791 loader will create holes between subspaces *and*
3792 subspace alignments are *NOT* preserved. What a crock. */
3793 subspace_offset = subsection->vma;
3795 /* Only do this for the first subspace within each space. */
3798 else if (abfd->flags & (EXEC_P | DYNAMIC))
3800 /* The braindamaged HPUX loader may have created a hole
3801 between two subspaces. It is *not* sufficient to use
3802 the alignment specifications within the subspaces to
3803 account for these holes -- I've run into at least one
3804 case where the loader left one code subspace unaligned
3805 in a final executable.
3807 To combat this we keep a current offset within each space,
3808 and use the subspace vma fields to detect and preserve
3809 holes. What a crock!
3811 ps. This is not necessary for unloadable space/subspaces. */
3812 current_offset += subsection->vma - subspace_offset;
3813 if (subsection->flags & SEC_CODE)
3814 exec_header->exec_tsize += subsection->vma - subspace_offset;
3816 exec_header->exec_dsize += subsection->vma - subspace_offset;
3817 subspace_offset += subsection->vma - subspace_offset;
3820 subsection->target_index = total_subspaces++;
3821 /* This is real data to be loaded from the file. */
3822 if (subsection->flags & SEC_LOAD)
3824 /* Update the size of the code & data. */
3825 if (abfd->flags & (EXEC_P | DYNAMIC)
3826 && subsection->flags & SEC_CODE)
3827 exec_header->exec_tsize += subsection->size;
3828 else if (abfd->flags & (EXEC_P | DYNAMIC)
3829 && subsection->flags & SEC_DATA)
3830 exec_header->exec_dsize += subsection->size;
3831 som_section_data (subsection)->subspace_dict->file_loc_init_value
3833 subsection->filepos = current_offset;
3834 current_offset += subsection->size;
3835 subspace_offset += subsection->size;
3837 /* Looks like uninitialized data. */
3840 /* Update the size of the bss section. */
3841 if (abfd->flags & (EXEC_P | DYNAMIC))
3842 exec_header->exec_bsize += subsection->size;
3844 som_section_data (subsection)->subspace_dict->file_loc_init_value
3846 som_section_data (subsection)->subspace_dict->
3847 initialization_length = 0;
3850 /* Goto the next section. */
3851 section = section->next;
3854 /* Finally compute the file positions for unloadable subspaces.
3855 If building an executable, start the unloadable stuff on its
3858 if (abfd->flags & (EXEC_P | DYNAMIC))
3859 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3861 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3862 section = abfd->sections;
3863 for (i = 0; i < num_spaces; i++)
3865 asection *subsection;
3868 while (!som_is_space (section))
3869 section = section->next;
3871 if (abfd->flags & (EXEC_P | DYNAMIC))
3872 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3874 /* Now look for all its subspaces. */
3875 for (subsection = abfd->sections;
3877 subsection = subsection->next)
3880 if (!som_is_subspace (subsection)
3881 || !som_is_container (section, subsection)
3882 || (subsection->flags & SEC_ALLOC) != 0)
3885 subsection->target_index = total_subspaces++;
3886 /* This is real data to be loaded from the file. */
3887 if ((subsection->flags & SEC_LOAD) == 0)
3889 som_section_data (subsection)->subspace_dict->file_loc_init_value
3891 subsection->filepos = current_offset;
3892 current_offset += subsection->size;
3894 /* Looks like uninitialized data. */
3897 som_section_data (subsection)->subspace_dict->file_loc_init_value
3899 som_section_data (subsection)->subspace_dict->
3900 initialization_length = subsection->size;
3903 /* Goto the next section. */
3904 section = section->next;
3907 /* If building an executable, then make sure to seek to and write
3908 one byte at the end of the file to make sure any necessary
3909 zeros are filled in. Ugh. */
3910 if (abfd->flags & (EXEC_P | DYNAMIC))
3911 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3912 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3914 if (bfd_bwrite ((void *) "", (bfd_size_type) 1, abfd) != 1)
3917 obj_som_file_hdr (abfd)->unloadable_sp_size
3918 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3920 /* Loader fixups are not supported in any way shape or form. */
3921 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3922 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3924 /* Done. Store the total size of the SOM so far. */
3925 obj_som_file_hdr (abfd)->som_length = current_offset;
3930 /* Finally, scribble out the various headers to the disk. */
3933 som_finish_writing (bfd *abfd)
3935 int num_spaces = som_count_spaces (abfd);
3936 asymbol **syms = bfd_get_outsymbols (abfd);
3938 int subspace_index = 0;
3941 unsigned long current_offset;
3942 unsigned int strings_size, total_reloc_size;
3944 struct som_external_header ext_header;
3946 /* We must set up the version identifier here as objcopy/strip copy
3947 private BFD data too late for us to handle this in som_begin_writing. */
3948 if (obj_som_exec_data (abfd)
3949 && obj_som_exec_data (abfd)->version_id)
3950 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3952 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3954 /* Next is the symbol table. These are fixed length records.
3956 Count the number of symbols to determine how much room is needed
3957 in the object file for the symbol table.
3959 The names of the symbols are stored in a separate string table,
3960 and the index for each symbol name into the string table is computed
3961 below. Therefore, it is not possible to write the symbol table
3964 These used to be output before the subspace contents, but they
3965 were moved here to work around a stupid bug in the hpux linker
3966 (fixed in hpux10). */
3967 current_offset = obj_som_file_hdr (abfd)->som_length;
3969 /* Make sure we're on a word boundary. */
3970 if (current_offset % 4)
3971 current_offset += (4 - (current_offset % 4));
3973 num_syms = bfd_get_symcount (abfd);
3974 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3975 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3977 num_syms * sizeof (struct som_external_symbol_dictionary_record);
3979 /* Next are the symbol strings.
3980 Align them to a word boundary. */
3981 if (current_offset % 4)
3982 current_offset += (4 - (current_offset % 4));
3983 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3985 /* Scribble out the symbol strings. */
3986 if (! som_write_symbol_strings (abfd, current_offset, syms,
3987 num_syms, &strings_size,
3988 obj_som_compilation_unit (abfd)))
3991 /* Record total string table size in header and update the
3993 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3994 current_offset += strings_size;
3996 /* Do prep work before handling fixups. */
3997 som_prep_for_fixups (abfd,
3998 bfd_get_outsymbols (abfd),
3999 bfd_get_symcount (abfd));
4001 /* At the end of the file is the fixup stream which starts on a
4003 if (current_offset % 4)
4004 current_offset += (4 - (current_offset % 4));
4005 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
4007 /* Write the fixups and update fields in subspace headers which
4008 relate to the fixup stream. */
4009 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
4012 /* Record the total size of the fixup stream in the file header. */
4013 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
4015 /* Done. Store the total size of the SOM. */
4016 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
4018 /* Now that the symbol table information is complete, build and
4019 write the symbol table. */
4020 if (! som_build_and_write_symbol_table (abfd))
4023 /* Subspaces are written first so that we can set up information
4024 about them in their containing spaces as the subspace is written. */
4026 /* Seek to the start of the subspace dictionary records. */
4027 location = obj_som_file_hdr (abfd)->subspace_location;
4028 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4031 section = abfd->sections;
4032 /* Now for each loadable space write out records for its subspaces. */
4033 for (i = 0; i < num_spaces; i++)
4035 asection *subsection;
4038 while (!som_is_space (section))
4039 section = section->next;
4041 /* Now look for all its subspaces. */
4042 for (subsection = abfd->sections;
4044 subsection = subsection->next)
4046 struct som_external_subspace_dictionary_record ext_subspace_dict;
4048 /* Skip any section which does not correspond to a space
4049 or subspace. Or does not have SEC_ALLOC set (and therefore
4050 has no real bits on the disk). */
4051 if (!som_is_subspace (subsection)
4052 || !som_is_container (section, subsection)
4053 || (subsection->flags & SEC_ALLOC) == 0)
4056 /* If this is the first subspace for this space, then save
4057 the index of the subspace in its containing space. Also
4058 set "is_loadable" in the containing space. */
4060 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4062 som_section_data (section)->space_dict->is_loadable = 1;
4063 som_section_data (section)->space_dict->subspace_index
4067 /* Increment the number of subspaces seen and the number of
4068 subspaces contained within the current space. */
4070 som_section_data (section)->space_dict->subspace_quantity++;
4072 /* Mark the index of the current space within the subspace's
4073 dictionary record. */
4074 som_section_data (subsection)->subspace_dict->space_index = i;
4076 /* Dump the current subspace header. */
4077 som_swap_subspace_dictionary_record_out
4078 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
4079 amt = sizeof (struct som_subspace_dictionary_record);
4080 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
4083 /* Goto the next section. */
4084 section = section->next;
4087 /* Now repeat the process for unloadable subspaces. */
4088 section = abfd->sections;
4089 /* Now for each space write out records for its subspaces. */
4090 for (i = 0; i < num_spaces; i++)
4092 asection *subsection;
4095 while (!som_is_space (section))
4096 section = section->next;
4098 /* Now look for all its subspaces. */
4099 for (subsection = abfd->sections;
4101 subsection = subsection->next)
4103 struct som_external_subspace_dictionary_record ext_subspace_dict;
4105 /* Skip any section which does not correspond to a space or
4106 subspace, or which SEC_ALLOC set (and therefore handled
4107 in the loadable spaces/subspaces code above). */
4109 if (!som_is_subspace (subsection)
4110 || !som_is_container (section, subsection)
4111 || (subsection->flags & SEC_ALLOC) != 0)
4114 /* If this is the first subspace for this space, then save
4115 the index of the subspace in its containing space. Clear
4118 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4120 som_section_data (section)->space_dict->is_loadable = 0;
4121 som_section_data (section)->space_dict->subspace_index
4125 /* Increment the number of subspaces seen and the number of
4126 subspaces contained within the current space. */
4127 som_section_data (section)->space_dict->subspace_quantity++;
4130 /* Mark the index of the current space within the subspace's
4131 dictionary record. */
4132 som_section_data (subsection)->subspace_dict->space_index = i;
4134 /* Dump this subspace header. */
4135 som_swap_subspace_dictionary_record_out
4136 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
4137 amt = sizeof (struct som_subspace_dictionary_record);
4138 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
4141 /* Goto the next section. */
4142 section = section->next;
4145 /* All the subspace dictionary records are written, and all the
4146 fields are set up in the space dictionary records.
4148 Seek to the right location and start writing the space
4149 dictionary records. */
4150 location = obj_som_file_hdr (abfd)->space_location;
4151 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4154 section = abfd->sections;
4155 for (i = 0; i < num_spaces; i++)
4157 struct som_external_space_dictionary_record ext_space_dict;
4160 while (!som_is_space (section))
4161 section = section->next;
4163 /* Dump its header. */
4164 som_swap_space_dictionary_out (som_section_data (section)->space_dict,
4166 amt = sizeof (struct som_external_space_dictionary_record);
4167 if (bfd_bwrite (&ext_space_dict, amt, abfd) != amt)
4170 /* Goto the next section. */
4171 section = section->next;
4174 /* Write the compilation unit record if there is one. */
4175 if (obj_som_compilation_unit (abfd))
4177 struct som_external_compilation_unit ext_comp_unit;
4179 location = obj_som_file_hdr (abfd)->compiler_location;
4180 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4183 som_swap_compilation_unit_out
4184 (obj_som_compilation_unit (abfd), &ext_comp_unit);
4186 amt = sizeof (struct som_external_compilation_unit);
4187 if (bfd_bwrite (&ext_comp_unit, amt, abfd) != amt)
4191 /* Setting of the system_id has to happen very late now that copying of
4192 BFD private data happens *after* section contents are set. */
4193 if (abfd->flags & (EXEC_P | DYNAMIC))
4194 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
4195 else if (bfd_get_mach (abfd) == pa20)
4196 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
4197 else if (bfd_get_mach (abfd) == pa11)
4198 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
4200 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
4202 /* Swap and compute the checksum for the file header just before writing
4203 the header to disk. */
4204 som_swap_header_out (obj_som_file_hdr (abfd), &ext_header);
4205 bfd_putb32 (som_compute_checksum (&ext_header), ext_header.checksum);
4207 /* Only thing left to do is write out the file header. It is always
4208 at location zero. Seek there and write it. */
4209 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4211 amt = sizeof (struct som_external_header);
4212 if (bfd_bwrite (&ext_header, amt, abfd) != amt)
4215 /* Now write the exec header. */
4216 if (abfd->flags & (EXEC_P | DYNAMIC))
4218 long tmp, som_length;
4219 struct som_exec_auxhdr *exec_header;
4220 struct som_external_exec_auxhdr ext_exec_header;
4222 exec_header = obj_som_exec_hdr (abfd);
4223 exec_header->exec_entry = bfd_get_start_address (abfd);
4224 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
4226 /* Oh joys. Ram some of the BSS data into the DATA section
4227 to be compatible with how the hp linker makes objects
4228 (saves memory space). */
4229 tmp = exec_header->exec_dsize;
4230 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
4231 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
4232 if (exec_header->exec_bsize < 0)
4233 exec_header->exec_bsize = 0;
4234 exec_header->exec_dsize = tmp;
4236 /* Now perform some sanity checks. The idea is to catch bogons now and
4237 inform the user, instead of silently generating a bogus file. */
4238 som_length = obj_som_file_hdr (abfd)->som_length;
4239 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
4240 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
4242 bfd_set_error (bfd_error_bad_value);
4246 som_swap_exec_auxhdr_out (exec_header, &ext_exec_header);
4248 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
4252 amt = sizeof (ext_exec_header);
4253 if (bfd_bwrite (&ext_exec_header, amt, abfd) != amt)
4259 /* Compute and return the checksum for a SOM file header. */
4261 static unsigned long
4262 som_compute_checksum (struct som_external_header *hdr)
4264 unsigned long checksum, count, i;
4265 unsigned long *buffer = (unsigned long *) hdr;
4268 count = sizeof (struct som_external_header) / 4;
4269 for (i = 0; i < count; i++)
4270 checksum ^= *(buffer + i);
4276 som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
4278 struct som_misc_symbol_info *info)
4281 memset (info, 0, sizeof (struct som_misc_symbol_info));
4283 /* The HP SOM linker requires detailed type information about
4284 all symbols (including undefined symbols!). Unfortunately,
4285 the type specified in an import/export statement does not
4286 always match what the linker wants. Severe braindamage. */
4288 /* Section symbols will not have a SOM symbol type assigned to
4289 them yet. Assign all section symbols type ST_DATA. */
4290 if (sym->flags & BSF_SECTION_SYM)
4291 info->symbol_type = ST_DATA;
4294 /* For BFD style common, the linker will choke unless we set the
4295 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
4296 if (bfd_is_com_section (sym->section))
4298 info->symbol_type = ST_STORAGE;
4299 info->symbol_scope = SS_UNSAT;
4302 /* It is possible to have a symbol without an associated
4303 type. This happens if the user imported the symbol
4304 without a type and the symbol was never defined
4305 locally. If BSF_FUNCTION is set for this symbol, then
4306 assign it type ST_CODE (the HP linker requires undefined
4307 external functions to have type ST_CODE rather than ST_ENTRY). */
4308 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4309 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4310 && bfd_is_und_section (sym->section)
4311 && sym->flags & BSF_FUNCTION)
4312 info->symbol_type = ST_CODE;
4314 /* Handle function symbols which were defined in this file.
4315 They should have type ST_ENTRY. Also retrieve the argument
4316 relocation bits from the SOM backend information. */
4317 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4318 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4319 && (sym->flags & BSF_FUNCTION))
4320 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4321 && (sym->flags & BSF_FUNCTION)))
4323 info->symbol_type = ST_ENTRY;
4324 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4325 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4328 /* For unknown symbols set the symbol's type based on the symbol's
4329 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4330 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4332 if (bfd_is_abs_section (sym->section))
4333 info->symbol_type = ST_ABSOLUTE;
4334 else if (sym->section->flags & SEC_CODE)
4335 info->symbol_type = ST_CODE;
4337 info->symbol_type = ST_DATA;
4340 /* From now on it's a very simple mapping. */
4341 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4342 info->symbol_type = ST_ABSOLUTE;
4343 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4344 info->symbol_type = ST_CODE;
4345 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4346 info->symbol_type = ST_DATA;
4347 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4348 info->symbol_type = ST_MILLICODE;
4349 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4350 info->symbol_type = ST_PLABEL;
4351 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4352 info->symbol_type = ST_PRI_PROG;
4353 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4354 info->symbol_type = ST_SEC_PROG;
4357 /* Now handle the symbol's scope. Exported data which is not
4358 in the common section has scope SS_UNIVERSAL. Note scope
4359 of common symbols was handled earlier! */
4360 if (bfd_is_com_section (sym->section))
4362 else if (bfd_is_und_section (sym->section))
4363 info->symbol_scope = SS_UNSAT;
4364 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
4365 info->symbol_scope = SS_UNIVERSAL;
4366 /* Anything else which is not in the common section has scope
4369 info->symbol_scope = SS_LOCAL;
4371 /* Now set the symbol_info field. It has no real meaning
4372 for undefined or common symbols, but the HP linker will
4373 choke if it's not set to some "reasonable" value. We
4374 use zero as a reasonable value. */
4375 if (bfd_is_com_section (sym->section)
4376 || bfd_is_und_section (sym->section)
4377 || bfd_is_abs_section (sym->section))
4378 info->symbol_info = 0;
4379 /* For all other symbols, the symbol_info field contains the
4380 subspace index of the space this symbol is contained in. */
4382 info->symbol_info = sym->section->target_index;
4384 /* Set the symbol's value. */
4385 info->symbol_value = sym->value + sym->section->vma;
4387 /* The secondary_def field is for "weak" symbols. */
4388 if (sym->flags & BSF_WEAK)
4389 info->secondary_def = TRUE;
4391 info->secondary_def = FALSE;
4393 /* The is_comdat, is_common and dup_common fields provide various
4396 For data symbols, setting IS_COMMON provides Fortran style common
4397 (duplicate definitions and overlapped initialization). Setting both
4398 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4399 definitions as long as they are all the same length). In a shared
4400 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4401 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4402 symbol except in that it loses its IS_COMDAT flag in a shared link.
4404 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4405 DUP_COMMON code symbols are not exported from shared libraries.
4406 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4408 We take a simplified approach to setting the is_comdat, is_common
4409 and dup_common flags in symbols based on the flag settings of their
4410 subspace. This avoids having to add directives like `.comdat' but
4411 the linker behavior is probably undefined if there is more than one
4412 universal symbol (comdat key sysmbol) in a subspace.
4414 The behavior of these flags is not well documentmented, so there
4415 may be bugs and some surprising interactions with other flags. */
4416 if (som_section_data (sym->section)
4417 && som_section_data (sym->section)->subspace_dict
4418 && info->symbol_scope == SS_UNIVERSAL
4419 && (info->symbol_type == ST_ENTRY
4420 || info->symbol_type == ST_CODE
4421 || info->symbol_type == ST_DATA))
4424 = som_section_data (sym->section)->subspace_dict->is_comdat;
4426 = som_section_data (sym->section)->subspace_dict->is_common;
4428 = som_section_data (sym->section)->subspace_dict->dup_common;
4432 /* Build and write, in one big chunk, the entire symbol table for
4436 som_build_and_write_symbol_table (bfd *abfd)
4438 unsigned int num_syms = bfd_get_symcount (abfd);
4439 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4440 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4441 struct som_external_symbol_dictionary_record *som_symtab = NULL;
4443 bfd_size_type symtab_size;
4445 /* Compute total symbol table size and allocate a chunk of memory
4446 to hold the symbol table as we build it. */
4447 symtab_size = num_syms;
4448 symtab_size *= sizeof (struct som_external_symbol_dictionary_record);
4449 som_symtab = bfd_zmalloc (symtab_size);
4450 if (som_symtab == NULL && symtab_size != 0)
4453 /* Walk over each symbol. */
4454 for (i = 0; i < num_syms; i++)
4456 struct som_misc_symbol_info info;
4459 /* This is really an index into the symbol strings table.
4460 By the time we get here, the index has already been
4461 computed and stored into the name field in the BFD symbol. */
4462 bfd_putb32 (som_symbol_data (bfd_syms[i])->stringtab_offset,
4463 som_symtab[i].name);
4465 /* Derive SOM information from the BFD symbol. */
4466 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4469 flags = (info.symbol_type << SOM_SYMBOL_TYPE_SH)
4470 | (info.symbol_scope << SOM_SYMBOL_SCOPE_SH)
4471 | (info.arg_reloc << SOM_SYMBOL_ARG_RELOC_SH)
4472 | (3 << SOM_SYMBOL_XLEAST_SH)
4473 | (info.secondary_def ? SOM_SYMBOL_SECONDARY_DEF : 0)
4474 | (info.is_common ? SOM_SYMBOL_IS_COMMON : 0)
4475 | (info.dup_common ? SOM_SYMBOL_DUP_COMMON : 0);
4476 bfd_putb32 (flags, som_symtab[i].flags);
4478 flags = (info.symbol_info << SOM_SYMBOL_SYMBOL_INFO_SH)
4479 | (info.is_comdat ? SOM_SYMBOL_IS_COMDAT : 0);
4480 bfd_putb32 (flags, som_symtab[i].info);
4481 bfd_putb32 (info.symbol_value | info.priv_level,
4482 som_symtab[i].symbol_value);
4485 /* Everything is ready, seek to the right location and
4486 scribble out the symbol table. */
4487 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4490 if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
4493 if (som_symtab != NULL)
4497 if (som_symtab != NULL)
4502 /* Write an object in SOM format. */
4505 som_write_object_contents (bfd *abfd)
4507 if (! abfd->output_has_begun)
4509 /* Set up fixed parts of the file, space, and subspace headers.
4510 Notify the world that output has begun. */
4511 som_prep_headers (abfd);
4512 abfd->output_has_begun = TRUE;
4513 /* Start writing the object file. This include all the string
4514 tables, fixup streams, and other portions of the object file. */
4515 som_begin_writing (abfd);
4518 return som_finish_writing (abfd);
4521 /* Read and save the string table associated with the given BFD. */
4524 som_slurp_string_table (bfd *abfd)
4529 /* Use the saved version if its available. */
4530 if (obj_som_stringtab (abfd) != NULL)
4533 /* I don't think this can currently happen, and I'm not sure it should
4534 really be an error, but it's better than getting unpredictable results
4535 from the host's malloc when passed a size of zero. */
4536 if (obj_som_stringtab_size (abfd) == 0)
4538 bfd_set_error (bfd_error_no_symbols);
4542 /* Allocate and read in the string table. */
4543 amt = obj_som_stringtab_size (abfd);
4544 stringtab = bfd_zmalloc (amt);
4545 if (stringtab == NULL)
4548 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4551 if (bfd_bread (stringtab, amt, abfd) != amt)
4554 /* Save our results and return success. */
4555 obj_som_stringtab (abfd) = stringtab;
4559 /* Return the amount of data (in bytes) required to hold the symbol
4560 table for this object. */
4563 som_get_symtab_upper_bound (bfd *abfd)
4565 if (!som_slurp_symbol_table (abfd))
4568 return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
4571 /* Convert from a SOM subspace index to a BFD section. */
4574 bfd_section_from_som_symbol
4575 (bfd *abfd, struct som_external_symbol_dictionary_record *symbol)
4578 unsigned int flags = bfd_getb32 (symbol->flags);
4579 unsigned int symbol_type = (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
4581 /* The meaning of the symbol_info field changes for functions
4582 within executables. So only use the quick symbol_info mapping for
4583 incomplete objects and non-function symbols in executables. */
4584 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4585 || (symbol_type != ST_ENTRY
4586 && symbol_type != ST_PRI_PROG
4587 && symbol_type != ST_SEC_PROG
4588 && symbol_type != ST_MILLICODE))
4590 int idx = (bfd_getb32 (symbol->info) >> SOM_SYMBOL_SYMBOL_INFO_SH)
4591 & SOM_SYMBOL_SYMBOL_INFO_MASK;
4593 for (section = abfd->sections; section != NULL; section = section->next)
4594 if (section->target_index == idx && som_is_subspace (section))
4599 unsigned int value = bfd_getb32 (symbol->symbol_value);
4601 /* For executables we will have to use the symbol's address and
4602 find out what section would contain that address. Yuk. */
4603 for (section = abfd->sections; section; section = section->next)
4604 if (value >= section->vma
4605 && value <= section->vma + section->size
4606 && som_is_subspace (section))
4610 /* Could be a symbol from an external library (such as an OMOS
4611 shared library). Don't abort. */
4612 return bfd_abs_section_ptr;
4615 /* Read and save the symbol table associated with the given BFD. */
4618 som_slurp_symbol_table (bfd *abfd)
4620 int symbol_count = bfd_get_symcount (abfd);
4621 int symsize = sizeof (struct som_external_symbol_dictionary_record);
4623 struct som_external_symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4624 som_symbol_type *sym, *symbase;
4627 /* Return saved value if it exists. */
4628 if (obj_som_symtab (abfd) != NULL)
4629 goto successful_return;
4631 /* Special case. This is *not* an error. */
4632 if (symbol_count == 0)
4633 goto successful_return;
4635 if (!som_slurp_string_table (abfd))
4638 stringtab = obj_som_stringtab (abfd);
4641 amt *= sizeof (som_symbol_type);
4642 symbase = bfd_zmalloc (amt);
4643 if (symbase == NULL)
4646 /* Read in the external SOM representation. */
4649 buf = bfd_malloc (amt);
4650 if (buf == NULL && amt != 0)
4652 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4654 if (bfd_bread (buf, amt, abfd) != amt)
4657 /* Iterate over all the symbols and internalize them. */
4658 endbufp = buf + symbol_count;
4659 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4661 unsigned int flags = bfd_getb32 (bufp->flags);
4662 unsigned int symbol_type =
4663 (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
4664 unsigned int symbol_scope =
4665 (flags >> SOM_SYMBOL_SCOPE_SH) & SOM_SYMBOL_SCOPE_MASK;
4667 /* I don't think we care about these. */
4668 if (symbol_type == ST_SYM_EXT || symbol_type == ST_ARG_EXT)
4671 /* Set some private data we care about. */
4672 if (symbol_type == ST_NULL)
4673 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4674 else if (symbol_type == ST_ABSOLUTE)
4675 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4676 else if (symbol_type == ST_DATA)
4677 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4678 else if (symbol_type == ST_CODE)
4679 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4680 else if (symbol_type == ST_PRI_PROG)
4681 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4682 else if (symbol_type == ST_SEC_PROG)
4683 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4684 else if (symbol_type == ST_ENTRY)
4685 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4686 else if (symbol_type == ST_MILLICODE)
4687 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4688 else if (symbol_type == ST_PLABEL)
4689 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4691 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4692 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc =
4693 (flags >> SOM_SYMBOL_ARG_RELOC_SH) & SOM_SYMBOL_ARG_RELOC_MASK;
4695 /* Some reasonable defaults. */
4696 sym->symbol.the_bfd = abfd;
4697 sym->symbol.name = bfd_getb32 (bufp->name) + stringtab;
4698 sym->symbol.value = bfd_getb32 (bufp->symbol_value);
4699 sym->symbol.section = 0;
4700 sym->symbol.flags = 0;
4702 switch (symbol_type)
4706 sym->symbol.flags |= BSF_FUNCTION;
4707 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4708 sym->symbol.value & 0x3;
4709 sym->symbol.value &= ~0x3;
4716 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4717 sym->symbol.value & 0x3;
4718 sym->symbol.value &= ~0x3;
4719 /* If the symbol's scope is SS_UNSAT, then these are
4720 undefined function symbols. */
4721 if (symbol_scope == SS_UNSAT)
4722 sym->symbol.flags |= BSF_FUNCTION;
4728 /* Handle scoping and section information. */
4729 switch (symbol_scope)
4731 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4732 so the section associated with this symbol can't be known. */
4734 if (symbol_type != ST_STORAGE)
4735 sym->symbol.section = bfd_und_section_ptr;
4737 sym->symbol.section = bfd_com_section_ptr;
4738 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4742 if (symbol_type != ST_STORAGE)
4743 sym->symbol.section = bfd_und_section_ptr;
4745 sym->symbol.section = bfd_com_section_ptr;
4749 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4750 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4751 sym->symbol.value -= sym->symbol.section->vma;
4755 sym->symbol.flags |= BSF_LOCAL;
4756 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4757 sym->symbol.value -= sym->symbol.section->vma;
4761 /* Check for a weak symbol. */
4762 if (flags & SOM_SYMBOL_SECONDARY_DEF)
4763 sym->symbol.flags |= BSF_WEAK;
4765 /* Mark section symbols and symbols used by the debugger.
4766 Note $START$ is a magic code symbol, NOT a section symbol. */
4767 if (sym->symbol.name[0] == '$'
4768 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4769 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4770 sym->symbol.flags |= BSF_SECTION_SYM;
4771 else if (CONST_STRNEQ (sym->symbol.name, "L$0\002"))
4773 sym->symbol.flags |= BSF_SECTION_SYM;
4774 sym->symbol.name = sym->symbol.section->name;
4776 else if (CONST_STRNEQ (sym->symbol.name, "L$0\001"))
4777 sym->symbol.flags |= BSF_DEBUGGING;
4779 /* Note increment at bottom of loop, since we skip some symbols
4780 we can not include it as part of the for statement. */
4784 /* We modify the symbol count to record the number of BFD symbols we
4786 bfd_get_symcount (abfd) = sym - symbase;
4788 /* Save our results and return success. */
4789 obj_som_symtab (abfd) = symbase;
4801 /* Canonicalize a SOM symbol table. Return the number of entries
4802 in the symbol table. */
4805 som_canonicalize_symtab (bfd *abfd, asymbol **location)
4808 som_symbol_type *symbase;
4810 if (!som_slurp_symbol_table (abfd))
4813 i = bfd_get_symcount (abfd);
4814 symbase = obj_som_symtab (abfd);
4816 for (; i > 0; i--, location++, symbase++)
4817 *location = &symbase->symbol;
4819 /* Final null pointer. */
4821 return (bfd_get_symcount (abfd));
4824 /* Make a SOM symbol. There is nothing special to do here. */
4827 som_make_empty_symbol (bfd *abfd)
4829 bfd_size_type amt = sizeof (som_symbol_type);
4830 som_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt);
4832 if (new_symbol_type == NULL)
4834 new_symbol_type->symbol.the_bfd = abfd;
4836 return &new_symbol_type->symbol;
4839 /* Print symbol information. */
4842 som_print_symbol (bfd *abfd,
4845 bfd_print_symbol_type how)
4847 FILE *file = (FILE *) afile;
4851 case bfd_print_symbol_name:
4852 fprintf (file, "%s", symbol->name);
4854 case bfd_print_symbol_more:
4855 fprintf (file, "som ");
4856 fprintf_vma (file, symbol->value);
4857 fprintf (file, " %lx", (long) symbol->flags);
4859 case bfd_print_symbol_all:
4861 const char *section_name;
4863 section_name = symbol->section ? symbol->section->name : "(*none*)";
4864 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
4865 fprintf (file, " %s\t%s", section_name, symbol->name);
4872 som_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
4875 return name[0] == 'L' && name[1] == '$';
4878 /* Count or process variable-length SOM fixup records.
4880 To avoid code duplication we use this code both to compute the number
4881 of relocations requested by a stream, and to internalize the stream.
4883 When computing the number of relocations requested by a stream the
4884 variables rptr, section, and symbols have no meaning.
4886 Return the number of relocations requested by the fixup stream. When
4889 This needs at least two or three more passes to get it cleaned up. */
4892 som_set_reloc_info (unsigned char *fixup,
4894 arelent *internal_relocs,
4897 bfd_boolean just_count)
4899 unsigned int op, varname, deallocate_contents = 0;
4900 unsigned char *end_fixups = &fixup[end];
4901 const struct fixup_format *fp;
4903 unsigned char *save_fixup;
4904 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4906 arelent *rptr = internal_relocs;
4907 unsigned int offset = 0;
4909 #define var(c) variables[(c) - 'A']
4910 #define push(v) (*sp++ = (v))
4911 #define pop() (*--sp)
4912 #define emptystack() (sp == stack)
4914 som_initialize_reloc_queue (reloc_queue);
4915 memset (variables, 0, sizeof (variables));
4916 memset (stack, 0, sizeof (stack));
4919 saved_unwind_bits = 0;
4922 while (fixup < end_fixups)
4924 /* Save pointer to the start of this fixup. We'll use
4925 it later to determine if it is necessary to put this fixup
4929 /* Get the fixup code and its associated format. */
4931 fp = &som_fixup_formats[op];
4933 /* Handle a request for a previous fixup. */
4934 if (*fp->format == 'P')
4936 /* Get pointer to the beginning of the prev fixup, move
4937 the repeated fixup to the head of the queue. */
4938 fixup = reloc_queue[fp->D].reloc;
4939 som_reloc_queue_fix (reloc_queue, fp->D);
4942 /* Get the fixup code and its associated format. */
4944 fp = &som_fixup_formats[op];
4947 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4949 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4950 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4952 rptr->address = offset;
4953 rptr->howto = &som_hppa_howto_table[op];
4955 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4958 /* Set default input length to 0. Get the opcode class index
4962 var ('U') = saved_unwind_bits;
4964 /* Get the opcode format. */
4967 /* Process the format string. Parsing happens in two phases,
4968 parse RHS, then assign to LHS. Repeat until no more
4969 characters in the format string. */
4972 /* The variable this pass is going to compute a value for. */
4975 /* Start processing RHS. Continue until a NULL or '=' is found. */
4980 /* If this is a variable, push it on the stack. */
4984 /* If this is a lower case letter, then it represents
4985 additional data from the fixup stream to be pushed onto
4987 else if (ISLOWER (c))
4989 int bits = (c - 'a') * 8;
4990 for (v = 0; c > 'a'; --c)
4991 v = (v << 8) | *fixup++;
4993 v = sign_extend (v, bits);
4997 /* A decimal constant. Push it on the stack. */
4998 else if (ISDIGIT (c))
5001 while (ISDIGIT (*cp))
5002 v = (v * 10) + (*cp++ - '0');
5006 /* An operator. Pop two two values from the stack and
5007 use them as operands to the given operation. Push
5008 the result of the operation back on the stack. */
5030 while (*cp && *cp != '=');
5032 /* Move over the equal operator. */
5035 /* Pop the RHS off the stack. */
5038 /* Perform the assignment. */
5041 /* Handle side effects. and special 'O' stack cases. */
5044 /* Consume some bytes from the input space. */
5048 /* A symbol to use in the relocation. Make a note
5049 of this if we are not just counting. */
5052 rptr->sym_ptr_ptr = &symbols[c];
5054 /* Argument relocation bits for a function call. */
5058 unsigned int tmp = var ('R');
5061 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
5062 && R_PCREL_CALL + 10 > op)
5063 || (som_hppa_howto_table[op].type == R_ABS_CALL
5064 && R_ABS_CALL + 10 > op))
5066 /* Simple encoding. */
5073 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
5075 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
5077 rptr->addend |= 1 << 8 | 1 << 6;
5079 rptr->addend |= 1 << 8;
5083 unsigned int tmp1, tmp2;
5085 /* First part is easy -- low order two bits are
5086 directly copied, then shifted away. */
5087 rptr->addend = tmp & 0x3;
5090 /* Diving the result by 10 gives us the second
5091 part. If it is 9, then the first two words
5092 are a double precision paramater, else it is
5093 3 * the first arg bits + the 2nd arg bits. */
5097 rptr->addend += (0xe << 6);
5100 /* Get the two pieces. */
5103 /* Put them in the addend. */
5104 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
5107 /* What's left is the third part. It's unpacked
5108 just like the second. */
5110 rptr->addend += (0xe << 2);
5115 rptr->addend += (tmp2 << 4) + (tmp << 2);
5118 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
5121 /* Handle the linker expression stack. */
5126 subop = comp1_opcodes;
5129 subop = comp2_opcodes;
5132 subop = comp3_opcodes;
5137 while (*subop <= (unsigned char) c)
5141 /* The lower 32unwind bits must be persistent. */
5143 saved_unwind_bits = var ('U');
5151 /* If we used a previous fixup, clean up after it. */
5154 fixup = save_fixup + 1;
5158 else if (fixup > save_fixup + 1)
5159 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
5161 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
5163 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
5164 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
5166 /* Done with a single reloction. Loop back to the top. */
5169 if (som_hppa_howto_table[op].type == R_ENTRY)
5170 rptr->addend = var ('T');
5171 else if (som_hppa_howto_table[op].type == R_EXIT)
5172 rptr->addend = var ('U');
5173 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
5174 || som_hppa_howto_table[op].type == R_ABS_CALL)
5176 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
5178 /* Try what was specified in R_DATA_OVERRIDE first
5179 (if anything). Then the hard way using the
5180 section contents. */
5181 rptr->addend = var ('V');
5183 if (rptr->addend == 0 && !section->contents)
5185 /* Got to read the damn contents first. We don't
5186 bother saving the contents (yet). Add it one
5187 day if the need arises. */
5189 if (!bfd_malloc_and_get_section (section->owner, section,
5192 if (contents != NULL)
5194 return (unsigned) -1;
5196 section->contents = contents;
5197 deallocate_contents = 1;
5199 else if (rptr->addend == 0)
5200 rptr->addend = bfd_get_32 (section->owner,
5202 + offset - var ('L')));
5206 rptr->addend = var ('V');
5210 /* Now that we've handled a "full" relocation, reset
5212 memset (variables, 0, sizeof (variables));
5213 memset (stack, 0, sizeof (stack));
5216 if (deallocate_contents)
5217 free (section->contents);
5227 /* Read in the relocs (aka fixups in SOM terms) for a section.
5229 som_get_reloc_upper_bound calls this routine with JUST_COUNT
5230 set to TRUE to indicate it only needs a count of the number
5231 of actual relocations. */
5234 som_slurp_reloc_table (bfd *abfd,
5237 bfd_boolean just_count)
5239 unsigned char *external_relocs;
5240 unsigned int fixup_stream_size;
5241 arelent *internal_relocs;
5242 unsigned int num_relocs;
5245 fixup_stream_size = som_section_data (section)->reloc_size;
5246 /* If there were no relocations, then there is nothing to do. */
5247 if (section->reloc_count == 0)
5250 /* If reloc_count is -1, then the relocation stream has not been
5251 parsed. We must do so now to know how many relocations exist. */
5252 if (section->reloc_count == (unsigned) -1)
5254 amt = fixup_stream_size;
5255 external_relocs = bfd_malloc (amt);
5256 if (external_relocs == NULL)
5258 /* Read in the external forms. */
5260 obj_som_reloc_filepos (abfd) + section->rel_filepos,
5264 if (bfd_bread (external_relocs, amt, abfd) != amt)
5267 /* Let callers know how many relocations found.
5268 also save the relocation stream as we will
5270 section->reloc_count = som_set_reloc_info (external_relocs,
5272 NULL, NULL, NULL, TRUE);
5274 som_section_data (section)->reloc_stream = external_relocs;
5277 /* If the caller only wanted a count, then return now. */
5281 num_relocs = section->reloc_count;
5282 external_relocs = som_section_data (section)->reloc_stream;
5283 /* Return saved information about the relocations if it is available. */
5284 if (section->relocation != NULL)
5288 amt *= sizeof (arelent);
5289 internal_relocs = bfd_zalloc (abfd, (amt));
5290 if (internal_relocs == NULL)
5293 /* Process and internalize the relocations. */
5294 som_set_reloc_info (external_relocs, fixup_stream_size,
5295 internal_relocs, section, symbols, FALSE);
5297 /* We're done with the external relocations. Free them. */
5298 free (external_relocs);
5299 som_section_data (section)->reloc_stream = NULL;
5301 /* Save our results and return success. */
5302 section->relocation = internal_relocs;
5306 /* Return the number of bytes required to store the relocation
5307 information associated with the given section. */
5310 som_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
5312 /* If section has relocations, then read in the relocation stream
5313 and parse it to determine how many relocations exist. */
5314 if (asect->flags & SEC_RELOC)
5316 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
5318 return (asect->reloc_count + 1) * sizeof (arelent *);
5321 /* There are no relocations. Return enough space to hold the
5322 NULL pointer which will be installed if som_canonicalize_reloc
5324 return sizeof (arelent *);
5327 /* Convert relocations from SOM (external) form into BFD internal
5328 form. Return the number of relocations. */
5331 som_canonicalize_reloc (bfd *abfd,
5339 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
5342 count = section->reloc_count;
5343 tblptr = section->relocation;
5346 *relptr++ = tblptr++;
5349 return section->reloc_count;
5352 extern const bfd_target hppa_som_vec;
5354 /* A hook to set up object file dependent section information. */
5357 som_new_section_hook (bfd *abfd, asection *newsect)
5359 if (!newsect->used_by_bfd)
5361 bfd_size_type amt = sizeof (struct som_section_data_struct);
5363 newsect->used_by_bfd = bfd_zalloc (abfd, amt);
5364 if (!newsect->used_by_bfd)
5367 newsect->alignment_power = 3;
5369 /* We allow more than three sections internally. */
5370 return _bfd_generic_new_section_hook (abfd, newsect);
5373 /* Copy any private info we understand from the input symbol
5374 to the output symbol. */
5377 som_bfd_copy_private_symbol_data (bfd *ibfd,
5382 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5383 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5385 /* One day we may try to grok other private data. */
5386 if (ibfd->xvec->flavour != bfd_target_som_flavour
5387 || obfd->xvec->flavour != bfd_target_som_flavour)
5390 /* The only private information we need to copy is the argument relocation
5392 output_symbol->tc_data.ap.hppa_arg_reloc =
5393 input_symbol->tc_data.ap.hppa_arg_reloc;
5398 /* Copy any private info we understand from the input section
5399 to the output section. */
5402 som_bfd_copy_private_section_data (bfd *ibfd,
5409 /* One day we may try to grok other private data. */
5410 if (ibfd->xvec->flavour != bfd_target_som_flavour
5411 || obfd->xvec->flavour != bfd_target_som_flavour
5412 || (!som_is_space (isection) && !som_is_subspace (isection)))
5415 amt = sizeof (struct som_copyable_section_data_struct);
5416 som_section_data (osection)->copy_data = bfd_zalloc (obfd, amt);
5417 if (som_section_data (osection)->copy_data == NULL)
5420 memcpy (som_section_data (osection)->copy_data,
5421 som_section_data (isection)->copy_data,
5422 sizeof (struct som_copyable_section_data_struct));
5424 /* Reparent if necessary. */
5425 if (som_section_data (osection)->copy_data->container)
5426 som_section_data (osection)->copy_data->container =
5427 som_section_data (osection)->copy_data->container->output_section;
5432 /* Copy any private info we understand from the input bfd
5433 to the output bfd. */
5436 som_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
5438 /* One day we may try to grok other private data. */
5439 if (ibfd->xvec->flavour != bfd_target_som_flavour
5440 || obfd->xvec->flavour != bfd_target_som_flavour)
5443 /* Allocate some memory to hold the data we need. */
5444 obj_som_exec_data (obfd) = bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5445 if (obj_som_exec_data (obfd) == NULL)
5448 /* Now copy the data. */
5449 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5450 sizeof (struct som_exec_data));
5455 /* Display the SOM header. */
5458 som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
5460 struct som_exec_auxhdr *exec_header;
5461 struct som_aux_id* auxhdr;
5466 exec_header = obj_som_exec_hdr (abfd);
5469 fprintf (f, _("\nExec Auxiliary Header\n"));
5470 fprintf (f, " flags ");
5471 auxhdr = &exec_header->som_auxhdr;
5472 if (auxhdr->mandatory)
5473 fprintf (f, "mandatory ");
5475 fprintf (f, "copy ");
5477 fprintf (f, "append ");
5479 fprintf (f, "ignore ");
5481 fprintf (f, " type %#x\n", auxhdr->type);
5482 fprintf (f, " length %#x\n", auxhdr->length);
5484 /* Note that, depending on the HP-UX version, the following fields can be
5485 either ints, or longs. */
5487 fprintf (f, " text size %#lx\n", (long) exec_header->exec_tsize);
5488 fprintf (f, " text memory offset %#lx\n", (long) exec_header->exec_tmem);
5489 fprintf (f, " text file offset %#lx\n", (long) exec_header->exec_tfile);
5490 fprintf (f, " data size %#lx\n", (long) exec_header->exec_dsize);
5491 fprintf (f, " data memory offset %#lx\n", (long) exec_header->exec_dmem);
5492 fprintf (f, " data file offset %#lx\n", (long) exec_header->exec_dfile);
5493 fprintf (f, " bss size %#lx\n", (long) exec_header->exec_bsize);
5494 fprintf (f, " entry point %#lx\n", (long) exec_header->exec_entry);
5495 fprintf (f, " loader flags %#lx\n", (long) exec_header->exec_flags);
5496 fprintf (f, " bss initializer %#lx\n", (long) exec_header->exec_bfill);
5502 /* Set backend info for sections which can not be described
5503 in the BFD data structures. */
5506 bfd_som_set_section_attributes (asection *section,
5509 unsigned int sort_key,
5512 /* Allocate memory to hold the magic information. */
5513 if (som_section_data (section)->copy_data == NULL)
5515 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5517 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5518 if (som_section_data (section)->copy_data == NULL)
5521 som_section_data (section)->copy_data->sort_key = sort_key;
5522 som_section_data (section)->copy_data->is_defined = defined;
5523 som_section_data (section)->copy_data->is_private = private;
5524 som_section_data (section)->copy_data->container = section;
5525 som_section_data (section)->copy_data->space_number = spnum;
5529 /* Set backend info for subsections which can not be described
5530 in the BFD data structures. */
5533 bfd_som_set_subsection_attributes (asection *section,
5534 asection *container,
5536 unsigned int sort_key,
5542 /* Allocate memory to hold the magic information. */
5543 if (som_section_data (section)->copy_data == NULL)
5545 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5547 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5548 if (som_section_data (section)->copy_data == NULL)
5551 som_section_data (section)->copy_data->sort_key = sort_key;
5552 som_section_data (section)->copy_data->access_control_bits = access_ctr;
5553 som_section_data (section)->copy_data->quadrant = quadrant;
5554 som_section_data (section)->copy_data->container = container;
5555 som_section_data (section)->copy_data->is_comdat = comdat;
5556 som_section_data (section)->copy_data->is_common = common;
5557 som_section_data (section)->copy_data->dup_common = dup_common;
5561 /* Set the full SOM symbol type. SOM needs far more symbol information
5562 than any other object file format I'm aware of. It is mandatory
5563 to be able to know if a symbol is an entry point, millicode, data,
5564 code, absolute, storage request, or procedure label. If you get
5565 the symbol type wrong your program will not link. */
5568 bfd_som_set_symbol_type (asymbol *symbol, unsigned int type)
5570 som_symbol_data (symbol)->som_type = type;
5573 /* Attach an auxiliary header to the BFD backend so that it may be
5574 written into the object file. */
5577 bfd_som_attach_aux_hdr (bfd *abfd, int type, char *string)
5581 if (type == VERSION_AUX_ID)
5583 size_t len = strlen (string);
5587 pad = (4 - (len % 4));
5588 amt = sizeof (struct som_string_auxhdr) + len + pad;
5589 obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
5590 if (!obj_som_version_hdr (abfd))
5592 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5593 obj_som_version_hdr (abfd)->header_id.length = 4 + len + pad;
5594 obj_som_version_hdr (abfd)->string_length = len;
5595 memcpy (obj_som_version_hdr (abfd)->string, string, len);
5596 memset (obj_som_version_hdr (abfd)->string + len, 0, pad);
5598 else if (type == COPYRIGHT_AUX_ID)
5600 int len = strlen (string);
5604 pad = (4 - (len % 4));
5605 amt = sizeof (struct som_string_auxhdr) + len + pad;
5606 obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
5607 if (!obj_som_copyright_hdr (abfd))
5609 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5610 obj_som_copyright_hdr (abfd)->header_id.length = len + pad + 4;
5611 obj_som_copyright_hdr (abfd)->string_length = len;
5612 memcpy (obj_som_copyright_hdr (abfd)->string, string, len);
5613 memset (obj_som_copyright_hdr (abfd)->string + len, 0, pad);
5618 /* Attach a compilation unit header to the BFD backend so that it may be
5619 written into the object file. */
5622 bfd_som_attach_compilation_unit (bfd *abfd,
5624 const char *language_name,
5625 const char *product_id,
5626 const char *version_id)
5628 struct som_compilation_unit *n;
5630 n = (struct som_compilation_unit *) bfd_zalloc
5631 (abfd, (bfd_size_type) sizeof (*n));
5638 n->f.name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5639 if (n->f.name == NULL) \
5641 strcpy (n->f.name, f); \
5645 STRDUP (language_name);
5646 STRDUP (product_id);
5647 STRDUP (version_id);
5651 obj_som_compilation_unit (abfd) = n;
5657 som_get_section_contents (bfd *abfd,
5661 bfd_size_type count)
5663 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5665 if ((bfd_size_type) (offset+count) > section->size
5666 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5667 || bfd_bread (location, count, abfd) != count)
5668 return FALSE; /* On error. */
5673 som_set_section_contents (bfd *abfd,
5675 const void *location,
5677 bfd_size_type count)
5679 if (! abfd->output_has_begun)
5681 /* Set up fixed parts of the file, space, and subspace headers.
5682 Notify the world that output has begun. */
5683 som_prep_headers (abfd);
5684 abfd->output_has_begun = TRUE;
5685 /* Start writing the object file. This include all the string
5686 tables, fixup streams, and other portions of the object file. */
5687 som_begin_writing (abfd);
5690 /* Only write subspaces which have "real" contents (eg. the contents
5691 are not generated at run time by the OS). */
5692 if (!som_is_subspace (section)
5693 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5696 /* Seek to the proper offset within the object file and write the
5698 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5699 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5702 if (bfd_bwrite (location, count, abfd) != count)
5708 som_set_arch_mach (bfd *abfd,
5709 enum bfd_architecture arch,
5710 unsigned long machine)
5712 /* Allow any architecture to be supported by the SOM backend. */
5713 return bfd_default_set_arch_mach (abfd, arch, machine);
5717 som_find_nearest_line (bfd *abfd,
5721 const char **filename_ptr,
5722 const char **functionname_ptr,
5723 unsigned int *line_ptr)
5730 if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
5731 & found, filename_ptr,
5732 functionname_ptr, line_ptr,
5733 & somdata (abfd).line_info))
5739 if (symbols == NULL)
5742 /* Fallback: find function name from symbols table. */
5746 for (p = symbols; *p != NULL; p++)
5748 som_symbol_type *q = (som_symbol_type *) *p;
5750 if (q->som_type == SYMBOL_TYPE_ENTRY
5751 && q->symbol.section == section
5752 && q->symbol.value >= low_func
5753 && q->symbol.value <= offset)
5755 func = (asymbol *) q;
5756 low_func = q->symbol.value;
5763 *filename_ptr = NULL;
5764 *functionname_ptr = bfd_asymbol_name (func);
5771 som_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
5772 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5774 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5779 /* Return the single-character symbol type corresponding to
5780 SOM section S, or '?' for an unknown SOM section. */
5783 som_section_type (const char *s)
5785 const struct section_to_type *t;
5787 for (t = &stt[0]; t->section; t++)
5788 if (!strcmp (s, t->section))
5794 som_decode_symclass (asymbol *symbol)
5798 if (bfd_is_com_section (symbol->section))
5800 if (bfd_is_und_section (symbol->section))
5802 if (symbol->flags & BSF_WEAK)
5804 /* If weak, determine if it's specifically an object
5805 or non-object weak. */
5806 if (symbol->flags & BSF_OBJECT)
5814 if (bfd_is_ind_section (symbol->section))
5816 if (symbol->flags & BSF_WEAK)
5818 /* If weak, determine if it's specifically an object
5819 or non-object weak. */
5820 if (symbol->flags & BSF_OBJECT)
5825 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5828 if (bfd_is_abs_section (symbol->section)
5829 || (som_symbol_data (symbol) != NULL
5830 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5832 else if (symbol->section)
5833 c = som_section_type (symbol->section->name);
5836 if (symbol->flags & BSF_GLOBAL)
5841 /* Return information about SOM symbol SYMBOL in RET. */
5844 som_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
5848 ret->type = som_decode_symclass (symbol);
5849 if (ret->type != 'U')
5850 ret->value = symbol->value + symbol->section->vma;
5853 ret->name = symbol->name;
5856 /* Count the number of symbols in the archive symbol table. Necessary
5857 so that we can allocate space for all the carsyms at once. */
5860 som_bfd_count_ar_symbols (bfd *abfd,
5861 struct som_lst_header *lst_header,
5865 unsigned char *hash_table;
5867 file_ptr lst_filepos;
5869 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5871 amt = lst_header->hash_size * 4;
5872 hash_table = bfd_malloc (amt);
5873 if (hash_table == NULL && amt != 0)
5876 /* Don't forget to initialize the counter! */
5879 /* Read in the hash table. The has table is an array of 32bit file offsets
5880 which point to the hash chains. */
5881 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5884 /* Walk each chain counting the number of symbols found on that particular
5886 for (i = 0; i < lst_header->hash_size; i++)
5888 struct som_external_lst_symbol_record ext_lst_symbol;
5889 unsigned int hash_val = bfd_getb32 (hash_table + 4 * i);
5891 /* An empty chain has zero as it's file offset. */
5895 /* Seek to the first symbol in this hash chain. */
5896 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
5899 /* Read in this symbol and update the counter. */
5900 amt = sizeof (ext_lst_symbol);
5901 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
5906 /* Now iterate through the rest of the symbols on this chain. */
5909 unsigned int next_entry = bfd_getb32 (ext_lst_symbol.next_entry);
5911 if (next_entry == 0)
5914 /* Seek to the next symbol. */
5915 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
5918 /* Read the symbol in and update the counter. */
5919 amt = sizeof (ext_lst_symbol);
5920 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
5926 if (hash_table != NULL)
5931 if (hash_table != NULL)
5936 /* Fill in the canonical archive symbols (SYMS) from the archive described
5937 by ABFD and LST_HEADER. */
5940 som_bfd_fill_in_ar_symbols (bfd *abfd,
5941 struct som_lst_header *lst_header,
5945 carsym *set = syms[0];
5946 unsigned char *hash_table;
5947 struct som_external_som_entry *som_dict = NULL;
5949 file_ptr lst_filepos;
5950 unsigned int string_loc;
5952 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5953 amt = lst_header->hash_size * 4;
5954 hash_table = bfd_malloc (amt);
5955 if (hash_table == NULL && amt != 0)
5958 /* Read in the hash table. The has table is an array of 32bit file offsets
5959 which point to the hash chains. */
5960 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5963 /* Seek to and read in the SOM dictionary. We will need this to fill
5964 in the carsym's filepos field. */
5965 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5968 amt = lst_header->module_count * sizeof (struct som_external_som_entry);
5969 som_dict = bfd_malloc (amt);
5970 if (som_dict == NULL && amt != 0)
5973 if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
5976 string_loc = lst_header->string_loc;
5978 /* Walk each chain filling in the carsyms as we go along. */
5979 for (i = 0; i < lst_header->hash_size; i++)
5981 struct som_external_lst_symbol_record lst_symbol;
5982 unsigned int hash_val;
5984 unsigned char ext_len[4];
5986 /* An empty chain has zero as it's file offset. */
5987 hash_val = bfd_getb32 (hash_table + 4 * i);
5991 /* Seek to and read the first symbol on the chain. */
5992 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
5995 amt = sizeof (lst_symbol);
5996 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5999 /* Get the name of the symbol, first get the length which is stored
6000 as a 32bit integer just before the symbol.
6002 One might ask why we don't just read in the entire string table
6003 and index into it. Well, according to the SOM ABI the string
6004 index can point *anywhere* in the archive to save space, so just
6005 using the string table would not be safe. */
6006 if (bfd_seek (abfd, (lst_filepos + string_loc
6007 + bfd_getb32 (lst_symbol.name) - 4), SEEK_SET) != 0)
6010 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
6012 len = bfd_getb32 (ext_len);
6014 /* Allocate space for the name and null terminate it too. */
6015 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6018 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
6023 /* Fill in the file offset. Note that the "location" field points
6024 to the SOM itself, not the ar_hdr in front of it. */
6026 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6027 - sizeof (struct ar_hdr);
6029 /* Go to the next symbol. */
6032 /* Iterate through the rest of the chain. */
6035 unsigned int next_entry = bfd_getb32 (lst_symbol.next_entry);
6037 if (next_entry == 0)
6040 /* Seek to the next symbol and read it in. */
6041 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
6044 amt = sizeof (lst_symbol);
6045 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
6048 /* Seek to the name length & string and read them in. */
6049 if (bfd_seek (abfd, lst_filepos + string_loc
6050 + bfd_getb32 (lst_symbol.name) - 4, SEEK_SET) != 0)
6053 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
6055 len = bfd_getb32 (ext_len);
6057 /* Allocate space for the name and null terminate it too. */
6058 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6062 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
6066 /* Fill in the file offset. Note that the "location" field points
6067 to the SOM itself, not the ar_hdr in front of it. */
6069 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6070 - sizeof (struct ar_hdr);
6072 /* Go on to the next symbol. */
6076 /* If we haven't died by now, then we successfully read the entire
6077 archive symbol table. */
6078 if (hash_table != NULL)
6080 if (som_dict != NULL)
6085 if (hash_table != NULL)
6087 if (som_dict != NULL)
6092 /* Read in the LST from the archive. */
6095 som_slurp_armap (bfd *abfd)
6097 struct som_external_lst_header ext_lst_header;
6098 struct som_lst_header lst_header;
6099 struct ar_hdr ar_header;
6100 unsigned int parsed_size;
6101 struct artdata *ardata = bfd_ardata (abfd);
6103 bfd_size_type amt = 16;
6104 int i = bfd_bread ((void *) nextname, amt, abfd);
6106 /* Special cases. */
6112 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
6115 /* For archives without .o files there is no symbol table. */
6116 if (! CONST_STRNEQ (nextname, "/ "))
6118 bfd_has_map (abfd) = FALSE;
6122 /* Read in and sanity check the archive header. */
6123 amt = sizeof (struct ar_hdr);
6124 if (bfd_bread ((void *) &ar_header, amt, abfd) != amt)
6127 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
6129 bfd_set_error (bfd_error_malformed_archive);
6133 /* How big is the archive symbol table entry? */
6135 parsed_size = strtol (ar_header.ar_size, NULL, 10);
6138 bfd_set_error (bfd_error_malformed_archive);
6142 /* Save off the file offset of the first real user data. */
6143 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
6145 /* Read in the library symbol table. We'll make heavy use of this
6146 in just a minute. */
6147 amt = sizeof (struct som_external_lst_header);
6148 if (bfd_bread ((void *) &ext_lst_header, amt, abfd) != amt)
6151 som_swap_lst_header_in (&ext_lst_header, &lst_header);
6154 if (lst_header.a_magic != LIBMAGIC)
6156 bfd_set_error (bfd_error_malformed_archive);
6160 /* Count the number of symbols in the library symbol table. */
6161 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
6164 /* Get back to the start of the library symbol table. */
6165 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
6166 + sizeof (struct som_external_lst_header)),
6170 /* Initialize the cache and allocate space for the library symbols. */
6172 amt = ardata->symdef_count;
6173 amt *= sizeof (carsym);
6174 ardata->symdefs = bfd_alloc (abfd, amt);
6175 if (!ardata->symdefs)
6178 /* Now fill in the canonical archive symbols. */
6179 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
6182 /* Seek back to the "first" file in the archive. Note the "first"
6183 file may be the extended name table. */
6184 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
6187 /* Notify the generic archive code that we have a symbol map. */
6188 bfd_has_map (abfd) = TRUE;
6192 /* Begin preparing to write a SOM library symbol table.
6194 As part of the prep work we need to determine the number of symbols
6195 and the size of the associated string section. */
6198 som_bfd_prep_for_ar_write (bfd *abfd,
6199 unsigned int *num_syms,
6200 unsigned int *stringsize)
6202 bfd *curr_bfd = abfd->archive_head;
6204 /* Some initialization. */
6208 /* Iterate over each BFD within this archive. */
6209 while (curr_bfd != NULL)
6211 unsigned int curr_count, i;
6212 som_symbol_type *sym;
6214 /* Don't bother for non-SOM objects. */
6215 if (curr_bfd->format != bfd_object
6216 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6218 curr_bfd = curr_bfd->archive_next;
6222 /* Make sure the symbol table has been read, then snag a pointer
6223 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6224 but doing so avoids allocating lots of extra memory. */
6225 if (! som_slurp_symbol_table (curr_bfd))
6228 sym = obj_som_symtab (curr_bfd);
6229 curr_count = bfd_get_symcount (curr_bfd);
6231 /* Examine each symbol to determine if it belongs in the
6232 library symbol table. */
6233 for (i = 0; i < curr_count; i++, sym++)
6235 struct som_misc_symbol_info info;
6237 /* Derive SOM information from the BFD symbol. */
6238 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6240 /* Should we include this symbol? */
6241 if (info.symbol_type == ST_NULL
6242 || info.symbol_type == ST_SYM_EXT
6243 || info.symbol_type == ST_ARG_EXT)
6246 /* Only global symbols and unsatisfied commons. */
6247 if (info.symbol_scope != SS_UNIVERSAL
6248 && info.symbol_type != ST_STORAGE)
6251 /* Do no include undefined symbols. */
6252 if (bfd_is_und_section (sym->symbol.section))
6255 /* Bump the various counters, being careful to honor
6256 alignment considerations in the string table. */
6258 *stringsize += strlen (sym->symbol.name) + 5;
6259 while (*stringsize % 4)
6263 curr_bfd = curr_bfd->archive_next;
6268 /* Hash a symbol name based on the hashing algorithm presented in the
6272 som_bfd_ar_symbol_hash (asymbol *symbol)
6274 unsigned int len = strlen (symbol->name);
6276 /* Names with length 1 are special. */
6278 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
6280 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
6281 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
6284 /* Do the bulk of the work required to write the SOM library
6288 som_bfd_ar_write_symbol_stuff (bfd *abfd,
6290 unsigned int string_size,
6291 struct som_external_lst_header lst,
6294 char *strings = NULL, *p;
6295 struct som_external_lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
6297 unsigned char *hash_table = NULL;
6298 struct som_external_som_entry *som_dict = NULL;
6299 struct som_external_lst_symbol_record **last_hash_entry = NULL;
6300 unsigned int curr_som_offset, som_index = 0;
6302 unsigned int module_count;
6303 unsigned int hash_size;
6305 hash_size = bfd_getb32 (lst.hash_size);
6306 amt = hash_size * 4;
6307 hash_table = bfd_zmalloc (amt);
6308 if (hash_table == NULL && hash_size != 0)
6311 module_count = bfd_getb32 (lst.module_count);
6312 amt = module_count * sizeof (struct som_external_som_entry);
6313 som_dict = bfd_zmalloc (amt);
6314 if (som_dict == NULL && module_count != 0)
6317 amt = hash_size * sizeof (struct som_external_lst_symbol_record *);
6318 last_hash_entry = bfd_zmalloc (amt);
6319 if (last_hash_entry == NULL && hash_size != 0)
6322 /* Symbols have som_index fields, so we have to keep track of the
6323 index of each SOM in the archive.
6325 The SOM dictionary has (among other things) the absolute file
6326 position for the SOM which a particular dictionary entry
6327 describes. We have to compute that information as we iterate
6328 through the SOMs/symbols. */
6331 /* We add in the size of the archive header twice as the location
6332 in the SOM dictionary is the actual offset of the SOM, not the
6333 archive header before the SOM. */
6334 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + bfd_getb32 (lst.file_end);
6336 /* Make room for the archive header and the contents of the
6337 extended string table. Note that elength includes the size
6338 of the archive header for the extended name table! */
6340 curr_som_offset += elength;
6342 /* Make sure we're properly aligned. */
6343 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
6345 /* FIXME should be done with buffers just like everything else... */
6347 amt *= sizeof (struct som_external_lst_symbol_record);
6348 lst_syms = bfd_malloc (amt);
6349 if (lst_syms == NULL && nsyms != 0)
6351 strings = bfd_malloc ((bfd_size_type) string_size);
6352 if (strings == NULL && string_size != 0)
6356 curr_lst_sym = lst_syms;
6358 curr_bfd = abfd->archive_head;
6359 while (curr_bfd != NULL)
6361 unsigned int curr_count, i;
6362 som_symbol_type *sym;
6364 /* Don't bother for non-SOM objects. */
6365 if (curr_bfd->format != bfd_object
6366 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6368 curr_bfd = curr_bfd->archive_next;
6372 /* Make sure the symbol table has been read, then snag a pointer
6373 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6374 but doing so avoids allocating lots of extra memory. */
6375 if (! som_slurp_symbol_table (curr_bfd))
6378 sym = obj_som_symtab (curr_bfd);
6379 curr_count = bfd_get_symcount (curr_bfd);
6381 for (i = 0; i < curr_count; i++, sym++)
6383 struct som_misc_symbol_info info;
6384 struct som_external_lst_symbol_record *last;
6385 unsigned int symbol_pos;
6387 unsigned int symbol_key;
6390 /* Derive SOM information from the BFD symbol. */
6391 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6393 /* Should we include this symbol? */
6394 if (info.symbol_type == ST_NULL
6395 || info.symbol_type == ST_SYM_EXT
6396 || info.symbol_type == ST_ARG_EXT)
6399 /* Only global symbols and unsatisfied commons. */
6400 if (info.symbol_scope != SS_UNIVERSAL
6401 && info.symbol_type != ST_STORAGE)
6404 /* Do no include undefined symbols. */
6405 if (bfd_is_und_section (sym->symbol.section))
6408 /* If this is the first symbol from this SOM, then update
6409 the SOM dictionary too. */
6410 if (bfd_getb32 (som_dict[som_index].location) == 0)
6412 bfd_putb32 (curr_som_offset, som_dict[som_index].location);
6413 bfd_putb32 (arelt_size (curr_bfd), som_dict[som_index].length);
6416 symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6418 /* Fill in the lst symbol record. */
6420 if (info.secondary_def)
6421 flags |= LST_SYMBOL_SECONDARY_DEF;
6422 flags |= info.symbol_type << LST_SYMBOL_SYMBOL_TYPE_SH;
6423 flags |= info.symbol_scope << LST_SYMBOL_SYMBOL_SCOPE_SH;
6424 if (bfd_is_com_section (sym->symbol.section))
6425 flags |= LST_SYMBOL_IS_COMMON;
6426 if (info.dup_common)
6427 flags |= LST_SYMBOL_DUP_COMMON;
6428 flags |= 3 << LST_SYMBOL_XLEAST_SH;
6429 flags |= info.arg_reloc << LST_SYMBOL_ARG_RELOC_SH;
6430 bfd_putb32 (flags, curr_lst_sym->flags);
6431 bfd_putb32 (p - strings + 4, curr_lst_sym->name);
6432 bfd_putb32 (0, curr_lst_sym->qualifier_name);
6433 bfd_putb32 (info.symbol_info, curr_lst_sym->symbol_info);
6434 bfd_putb32 (info.symbol_value | info.priv_level,
6435 curr_lst_sym->symbol_value);
6436 bfd_putb32 (0, curr_lst_sym->symbol_descriptor);
6437 curr_lst_sym->reserved = 0;
6438 bfd_putb32 (som_index, curr_lst_sym->som_index);
6439 bfd_putb32 (symbol_key, curr_lst_sym->symbol_key);
6440 bfd_putb32 (0, curr_lst_sym->next_entry);
6442 /* Insert into the hash table. */
6444 (curr_lst_sym - lst_syms)
6445 * sizeof (struct som_external_lst_symbol_record)
6447 + module_count * sizeof (struct som_external_som_entry)
6448 + sizeof (struct som_external_lst_header);
6449 last = last_hash_entry[symbol_key % hash_size];
6452 /* There is already something at the head of this hash chain,
6453 so tack this symbol onto the end of the chain. */
6454 bfd_putb32 (symbol_pos, last->next_entry);
6457 /* First entry in this hash chain. */
6458 bfd_putb32 (symbol_pos, hash_table + 4 * (symbol_key % hash_size));
6460 /* Keep track of the last symbol we added to this chain so we can
6461 easily update its next_entry pointer. */
6462 last_hash_entry[symbol_key % hash_size] = curr_lst_sym;
6464 /* Update the string table. */
6465 slen = strlen (sym->symbol.name);
6466 bfd_put_32 (abfd, slen, p);
6468 slen++; /* Nul terminator. */
6469 memcpy (p, sym->symbol.name, slen);
6473 bfd_put_8 (abfd, 0, p);
6477 BFD_ASSERT (p <= strings + string_size);
6479 /* Head to the next symbol. */
6483 /* Keep track of where each SOM will finally reside; then look
6485 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6487 /* A particular object in the archive may have an odd length; the
6488 linker requires objects begin on an even boundary. So round
6489 up the current offset as necessary. */
6490 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6491 curr_bfd = curr_bfd->archive_next;
6495 /* Now scribble out the hash table. */
6496 amt = hash_size * 4;
6497 if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
6500 /* Then the SOM dictionary. */
6501 amt = module_count * sizeof (struct som_external_som_entry);
6502 if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
6505 /* The library symbols. */
6506 amt = nsyms * sizeof (struct som_external_lst_symbol_record);
6507 if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
6510 /* And finally the strings. */
6512 if (bfd_bwrite ((void *) strings, amt, abfd) != amt)
6515 if (hash_table != NULL)
6517 if (som_dict != NULL)
6519 if (last_hash_entry != NULL)
6520 free (last_hash_entry);
6521 if (lst_syms != NULL)
6523 if (strings != NULL)
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)
6542 /* Write out the LST for the archive.
6544 You'll never believe this is really how armaps are handled in SOM... */
6547 som_write_armap (bfd *abfd,
6548 unsigned int elength,
6549 struct orl *map ATTRIBUTE_UNUSED,
6550 unsigned int orl_count ATTRIBUTE_UNUSED,
6551 int stridx ATTRIBUTE_UNUSED)
6554 struct stat statbuf;
6555 unsigned int i, lst_size, nsyms, stringsize;
6557 struct som_external_lst_header lst;
6561 unsigned int module_count;
6563 /* We'll use this for the archive's date and mode later. */
6564 if (stat (abfd->filename, &statbuf) != 0)
6566 bfd_set_error (bfd_error_system_call);
6570 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6572 /* Account for the lst header first. */
6573 lst_size = sizeof (struct som_external_lst_header);
6575 /* Start building the LST header. */
6576 /* FIXME: Do we need to examine each element to determine the
6577 largest id number? */
6578 bfd_putb16 (CPU_PA_RISC1_0, &lst.system_id);
6579 bfd_putb16 (LIBMAGIC, &lst.a_magic);
6580 bfd_putb32 (VERSION_ID, &lst.version_id);
6581 bfd_putb32 (0, &lst.file_time.secs);
6582 bfd_putb32 (0, &lst.file_time.nanosecs);
6584 bfd_putb32 (lst_size, &lst.hash_loc);
6585 bfd_putb32 (SOM_LST_HASH_SIZE, &lst.hash_size);
6587 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6588 lst_size += 4 * SOM_LST_HASH_SIZE;
6590 /* We need to count the number of SOMs in this archive. */
6591 curr_bfd = abfd->archive_head;
6593 while (curr_bfd != NULL)
6595 /* Only true SOM objects count. */
6596 if (curr_bfd->format == bfd_object
6597 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6599 curr_bfd = curr_bfd->archive_next;
6601 bfd_putb32 (module_count, &lst.module_count);
6602 bfd_putb32 (module_count, &lst.module_limit);
6603 bfd_putb32 (lst_size, &lst.dir_loc);
6604 lst_size += sizeof (struct som_external_som_entry) * module_count;
6606 /* We don't support import/export tables, auxiliary headers,
6607 or free lists yet. Make the linker work a little harder
6608 to make our life easier. */
6610 bfd_putb32 (0, &lst.export_loc);
6611 bfd_putb32 (0, &lst.export_count);
6612 bfd_putb32 (0, &lst.import_loc);
6613 bfd_putb32 (0, &lst.aux_loc);
6614 bfd_putb32 (0, &lst.aux_size);
6616 /* Count how many symbols we will have on the hash chains and the
6617 size of the associated string table. */
6618 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6621 lst_size += sizeof (struct som_external_lst_symbol_record) * nsyms;
6623 /* For the string table. One day we might actually use this info
6624 to avoid small seeks/reads when reading archives. */
6625 bfd_putb32 (lst_size, &lst.string_loc);
6626 bfd_putb32 (stringsize, &lst.string_size);
6627 lst_size += stringsize;
6629 /* SOM ABI says this must be zero. */
6630 bfd_putb32 (0, &lst.free_list);
6631 bfd_putb32 (lst_size, &lst.file_end);
6633 /* Compute the checksum. Must happen after the entire lst header
6635 p = (unsigned char *) &lst;
6637 for (i = 0; i < sizeof (struct som_external_lst_header) - sizeof (int);
6639 csum ^= bfd_getb32 (&p[i]);
6640 bfd_putb32 (csum, &lst.checksum);
6642 sprintf (hdr.ar_name, "/ ");
6643 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%-12ld",
6644 bfd_ardata (abfd)->armap_timestamp);
6645 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld",
6647 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld",
6649 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-8o",
6650 (unsigned int)statbuf.st_mode);
6651 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10d",
6653 hdr.ar_fmag[0] = '`';
6654 hdr.ar_fmag[1] = '\012';
6656 /* Turn any nulls into spaces. */
6657 for (i = 0; i < sizeof (struct ar_hdr); i++)
6658 if (((char *) (&hdr))[i] == '\0')
6659 (((char *) (&hdr))[i]) = ' ';
6661 /* Scribble out the ar header. */
6662 amt = sizeof (struct ar_hdr);
6663 if (bfd_bwrite ((void *) &hdr, amt, abfd) != amt)
6666 /* Now scribble out the lst header. */
6667 amt = sizeof (struct som_external_lst_header);
6668 if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
6671 /* Build and write the armap. */
6672 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6679 /* Free all information we have cached for this BFD. We can always
6680 read it again later if we need it. */
6683 som_bfd_free_cached_info (bfd *abfd)
6687 if (bfd_get_format (abfd) != bfd_object)
6690 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6691 /* Free the native string and symbol tables. */
6692 FREE (obj_som_symtab (abfd));
6693 FREE (obj_som_stringtab (abfd));
6694 for (o = abfd->sections; o != NULL; o = o->next)
6696 /* Free the native relocations. */
6697 o->reloc_count = (unsigned) -1;
6698 FREE (som_section_data (o)->reloc_stream);
6699 /* Do not free the generic relocations as they are objalloc'ed. */
6706 /* End of miscellaneous support functions. */
6708 /* Linker support functions. */
6711 som_bfd_link_split_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
6713 return som_is_subspace (sec) && sec->size > 240000;
6716 #define som_find_line _bfd_nosymbols_find_line
6717 #define som_close_and_cleanup som_bfd_free_cached_info
6718 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6719 #define som_write_ar_hdr _bfd_generic_write_ar_hdr
6720 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6721 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6722 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6723 #define som_truncate_arname bfd_bsd_truncate_arname
6724 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6725 #define som_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
6726 #define som_update_armap_timestamp bfd_true
6727 #define som_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
6728 #define som_get_lineno _bfd_nosymbols_get_lineno
6729 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6730 #define som_read_minisymbols _bfd_generic_read_minisymbols
6731 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6732 #define som_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
6733 #define som_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
6734 #define som_bfd_relax_section bfd_generic_relax_section
6735 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6736 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6737 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6738 #define som_bfd_copy_link_hash_symbol_type \
6739 _bfd_generic_copy_link_hash_symbol_type
6740 #define som_bfd_final_link _bfd_generic_final_link
6741 #define som_bfd_gc_sections bfd_generic_gc_sections
6742 #define som_bfd_lookup_section_flags bfd_generic_lookup_section_flags
6743 #define som_bfd_merge_sections bfd_generic_merge_sections
6744 #define som_bfd_is_group_section bfd_generic_is_group_section
6745 #define som_bfd_discard_group bfd_generic_discard_group
6746 #define som_section_already_linked _bfd_generic_section_already_linked
6747 #define som_bfd_define_common_symbol bfd_generic_define_common_symbol
6748 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
6749 #define som_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
6750 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
6751 #define som_find_inliner_info _bfd_nosymbols_find_inliner_info
6753 const bfd_target hppa_som_vec =
6756 bfd_target_som_flavour,
6757 BFD_ENDIAN_BIG, /* Target byte order. */
6758 BFD_ENDIAN_BIG, /* Target headers byte order. */
6759 (HAS_RELOC | EXEC_P | /* Object flags. */
6760 HAS_LINENO | HAS_DEBUG |
6761 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6762 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
6763 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
6765 /* Leading_symbol_char: is the first char of a user symbol
6766 predictable, and if so what is it. */
6768 '/', /* AR_pad_char. */
6769 14, /* AR_max_namelen. */
6770 0, /* match priority. */
6771 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6772 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6773 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
6774 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6775 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6776 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
6778 som_object_p, /* bfd_check_format. */
6779 bfd_generic_archive_p,
6785 _bfd_generic_mkarchive,
6790 som_write_object_contents,
6791 _bfd_write_archive_contents,
6796 BFD_JUMP_TABLE_GENERIC (som),
6797 BFD_JUMP_TABLE_COPY (som),
6798 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6799 BFD_JUMP_TABLE_ARCHIVE (som),
6800 BFD_JUMP_TABLE_SYMBOLS (som),
6801 BFD_JUMP_TABLE_RELOCS (som),
6802 BFD_JUMP_TABLE_WRITE (som),
6803 BFD_JUMP_TABLE_LINK (som),
6804 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),