1 /* bfd back-end for HP PA-RISC SOM objects.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005
4 Free Software Foundation, Inc.
6 Contributed by the Center for Software Science at the
9 This file is part of BFD, the Binary File Descriptor library.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
26 #include "alloca-conf.h"
30 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) || defined(HOST_HPPAMPEIX)
34 #include "safe-ctype.h"
36 #include <sys/param.h>
38 #include <machine/reg.h>
41 static bfd_reloc_status_type hppa_som_reloc
42 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
43 static bfd_boolean som_mkobject (bfd *);
44 static bfd_boolean som_is_space (asection *);
45 static bfd_boolean som_is_subspace (asection *);
46 static int compare_subspaces (const void *, const void *);
47 static unsigned long som_compute_checksum (bfd *);
48 static bfd_boolean som_build_and_write_symbol_table (bfd *);
49 static unsigned int som_slurp_symbol_table (bfd *);
51 /* Magic not defined in standard HP-UX header files until 8.0. */
53 #ifndef CPU_PA_RISC1_0
54 #define CPU_PA_RISC1_0 0x20B
55 #endif /* CPU_PA_RISC1_0 */
57 #ifndef CPU_PA_RISC1_1
58 #define CPU_PA_RISC1_1 0x210
59 #endif /* CPU_PA_RISC1_1 */
61 #ifndef CPU_PA_RISC2_0
62 #define CPU_PA_RISC2_0 0x214
63 #endif /* CPU_PA_RISC2_0 */
65 #ifndef _PA_RISC1_0_ID
66 #define _PA_RISC1_0_ID CPU_PA_RISC1_0
67 #endif /* _PA_RISC1_0_ID */
69 #ifndef _PA_RISC1_1_ID
70 #define _PA_RISC1_1_ID CPU_PA_RISC1_1
71 #endif /* _PA_RISC1_1_ID */
73 #ifndef _PA_RISC2_0_ID
74 #define _PA_RISC2_0_ID CPU_PA_RISC2_0
75 #endif /* _PA_RISC2_0_ID */
77 #ifndef _PA_RISC_MAXID
78 #define _PA_RISC_MAXID 0x2FF
79 #endif /* _PA_RISC_MAXID */
82 #define _PA_RISC_ID(__m_num) \
83 (((__m_num) == _PA_RISC1_0_ID) || \
84 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
85 #endif /* _PA_RISC_ID */
87 /* HIUX in it's infinite stupidity changed the names for several "well
88 known" constants. Work around such braindamage. Try the HPUX version
89 first, then the HIUX version, and finally provide a default. */
91 #define EXEC_AUX_ID HPUX_AUX_ID
94 #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
95 #define EXEC_AUX_ID HIUX_AUX_ID
102 /* Size (in chars) of the temporary buffers used during fixup and string
105 #define SOM_TMP_BUFSIZE 8192
107 /* Size of the hash table in archives. */
108 #define SOM_LST_HASH_SIZE 31
110 /* Max number of SOMs to be found in an archive. */
111 #define SOM_LST_MODULE_LIMIT 1024
113 /* Generic alignment macro. */
114 #define SOM_ALIGN(val, alignment) \
115 (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1))
117 /* SOM allows any one of the four previous relocations to be reused
118 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
119 relocations are always a single byte, using a R_PREV_FIXUP instead
120 of some multi-byte relocation makes object files smaller.
122 Note one side effect of using a R_PREV_FIXUP is the relocation that
123 is being repeated moves to the front of the queue. */
126 unsigned char *reloc;
130 /* This fully describes the symbol types which may be attached to
131 an EXPORT or IMPORT directive. Only SOM uses this formation
132 (ELF has no need for it). */
136 SYMBOL_TYPE_ABSOLUTE,
140 SYMBOL_TYPE_MILLICODE,
142 SYMBOL_TYPE_PRI_PROG,
143 SYMBOL_TYPE_SEC_PROG,
146 struct section_to_type
152 /* Assorted symbol information that needs to be derived from the BFD symbol
153 and/or the BFD backend private symbol data. */
154 struct som_misc_symbol_info
156 unsigned int symbol_type;
157 unsigned int symbol_scope;
158 unsigned int arg_reloc;
159 unsigned int symbol_info;
160 unsigned int symbol_value;
161 unsigned int priv_level;
162 unsigned int secondary_def;
163 unsigned int is_comdat;
164 unsigned int is_common;
165 unsigned int dup_common;
168 /* Map SOM section names to POSIX/BSD single-character symbol types.
170 This table includes all the standard subspaces as defined in the
171 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
172 some reason was left out, and sections specific to embedded stabs. */
174 static const struct section_to_type stt[] =
177 {"$SHLIB_INFO$", 't'},
178 {"$MILLICODE$", 't'},
181 {"$UNWIND_START$", 't'},
185 {"$SHLIB_DATA$", 'd'},
187 {"$SHORTDATA$", 'g'},
192 {"$GDB_STRINGS$", 'N'},
193 {"$GDB_SYMBOLS$", 'N'},
197 /* About the relocation formatting table...
199 There are 256 entries in the table, one for each possible
200 relocation opcode available in SOM. We index the table by
201 the relocation opcode. The names and operations are those
202 defined by a.out_800 (4).
204 Right now this table is only used to count and perform minimal
205 processing on relocation streams so that they can be internalized
206 into BFD and symbolically printed by utilities. To make actual use
207 of them would be much more difficult, BFD's concept of relocations
208 is far too simple to handle SOM relocations. The basic assumption
209 that a relocation can be completely processed independent of other
210 relocations before an object file is written is invalid for SOM.
212 The SOM relocations are meant to be processed as a stream, they
213 specify copying of data from the input section to the output section
214 while possibly modifying the data in some manner. They also can
215 specify that a variable number of zeros or uninitialized data be
216 inserted on in the output segment at the current offset. Some
217 relocations specify that some previous relocation be re-applied at
218 the current location in the input/output sections. And finally a number
219 of relocations have effects on other sections (R_ENTRY, R_EXIT,
220 R_UNWIND_AUX and a variety of others). There isn't even enough room
221 in the BFD relocation data structure to store enough information to
222 perform all the relocations.
224 Each entry in the table has three fields.
226 The first entry is an index into this "class" of relocations. This
227 index can then be used as a variable within the relocation itself.
229 The second field is a format string which actually controls processing
230 of the relocation. It uses a simple postfix machine to do calculations
231 based on variables/constants found in the string and the relocation
234 The third field specifys whether or not this relocation may use
235 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
236 stored in the instruction.
240 L = input space byte count
241 D = index into class of relocations
242 M = output space byte count
243 N = statement number (unused?)
245 R = parameter relocation bits
247 T = first 32 bits of stack unwind information
248 U = second 32 bits of stack unwind information
249 V = a literal constant (usually used in the next relocation)
250 P = a previous relocation
252 Lower case letters (starting with 'b') refer to following
253 bytes in the relocation stream. 'b' is the next 1 byte,
254 c is the next 2 bytes, d is the next 3 bytes, etc...
255 This is the variable part of the relocation entries that
256 makes our life a living hell.
258 numerical constants are also used in the format string. Note
259 the constants are represented in decimal.
261 '+', "*" and "=" represents the obvious postfix operators.
262 '<' represents a left shift.
266 Parameter Relocation Bits:
270 Previous Relocations: The index field represents which in the queue
271 of 4 previous fixups should be re-applied.
273 Literal Constants: These are generally used to represent addend
274 parts of relocations when these constants are not stored in the
275 fields of the instructions themselves. For example the instruction
276 addil foo-$global$-0x1234 would use an override for "0x1234" rather
277 than storing it into the addil itself. */
285 static const struct fixup_format som_fixup_formats[256] =
287 /* R_NO_RELOCATION. */
288 { 0, "LD1+4*=" }, /* 0x00 */
289 { 1, "LD1+4*=" }, /* 0x01 */
290 { 2, "LD1+4*=" }, /* 0x02 */
291 { 3, "LD1+4*=" }, /* 0x03 */
292 { 4, "LD1+4*=" }, /* 0x04 */
293 { 5, "LD1+4*=" }, /* 0x05 */
294 { 6, "LD1+4*=" }, /* 0x06 */
295 { 7, "LD1+4*=" }, /* 0x07 */
296 { 8, "LD1+4*=" }, /* 0x08 */
297 { 9, "LD1+4*=" }, /* 0x09 */
298 { 10, "LD1+4*=" }, /* 0x0a */
299 { 11, "LD1+4*=" }, /* 0x0b */
300 { 12, "LD1+4*=" }, /* 0x0c */
301 { 13, "LD1+4*=" }, /* 0x0d */
302 { 14, "LD1+4*=" }, /* 0x0e */
303 { 15, "LD1+4*=" }, /* 0x0f */
304 { 16, "LD1+4*=" }, /* 0x10 */
305 { 17, "LD1+4*=" }, /* 0x11 */
306 { 18, "LD1+4*=" }, /* 0x12 */
307 { 19, "LD1+4*=" }, /* 0x13 */
308 { 20, "LD1+4*=" }, /* 0x14 */
309 { 21, "LD1+4*=" }, /* 0x15 */
310 { 22, "LD1+4*=" }, /* 0x16 */
311 { 23, "LD1+4*=" }, /* 0x17 */
312 { 0, "LD8<b+1+4*=" }, /* 0x18 */
313 { 1, "LD8<b+1+4*=" }, /* 0x19 */
314 { 2, "LD8<b+1+4*=" }, /* 0x1a */
315 { 3, "LD8<b+1+4*=" }, /* 0x1b */
316 { 0, "LD16<c+1+4*=" }, /* 0x1c */
317 { 1, "LD16<c+1+4*=" }, /* 0x1d */
318 { 2, "LD16<c+1+4*=" }, /* 0x1e */
319 { 0, "Ld1+=" }, /* 0x1f */
321 { 0, "Lb1+4*=" }, /* 0x20 */
322 { 1, "Ld1+=" }, /* 0x21 */
324 { 0, "Lb1+4*=" }, /* 0x22 */
325 { 1, "Ld1+=" }, /* 0x23 */
327 { 0, "L4=" }, /* 0x24 */
328 /* R_DATA_ONE_SYMBOL. */
329 { 0, "L4=Sb=" }, /* 0x25 */
330 { 1, "L4=Sd=" }, /* 0x26 */
332 { 0, "L4=Sb=" }, /* 0x27 */
333 { 1, "L4=Sd=" }, /* 0x28 */
335 { 0, "L4=" }, /* 0x29 */
336 /* R_REPEATED_INIT. */
337 { 0, "L4=Mb1+4*=" }, /* 0x2a */
338 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
339 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
340 { 3, "Ld1+=Me1+=" }, /* 0x2d */
341 { 0, "" }, /* 0x2e */
342 { 0, "" }, /* 0x2f */
344 { 0, "L4=RD=Sb=" }, /* 0x30 */
345 { 1, "L4=RD=Sb=" }, /* 0x31 */
346 { 2, "L4=RD=Sb=" }, /* 0x32 */
347 { 3, "L4=RD=Sb=" }, /* 0x33 */
348 { 4, "L4=RD=Sb=" }, /* 0x34 */
349 { 5, "L4=RD=Sb=" }, /* 0x35 */
350 { 6, "L4=RD=Sb=" }, /* 0x36 */
351 { 7, "L4=RD=Sb=" }, /* 0x37 */
352 { 8, "L4=RD=Sb=" }, /* 0x38 */
353 { 9, "L4=RD=Sb=" }, /* 0x39 */
354 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
355 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
356 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
357 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
358 /* R_SHORT_PCREL_MODE. */
359 { 0, "" }, /* 0x3e */
360 /* R_LONG_PCREL_MODE. */
361 { 0, "" }, /* 0x3f */
363 { 0, "L4=RD=Sb=" }, /* 0x40 */
364 { 1, "L4=RD=Sb=" }, /* 0x41 */
365 { 2, "L4=RD=Sb=" }, /* 0x42 */
366 { 3, "L4=RD=Sb=" }, /* 0x43 */
367 { 4, "L4=RD=Sb=" }, /* 0x44 */
368 { 5, "L4=RD=Sb=" }, /* 0x45 */
369 { 6, "L4=RD=Sb=" }, /* 0x46 */
370 { 7, "L4=RD=Sb=" }, /* 0x47 */
371 { 8, "L4=RD=Sb=" }, /* 0x48 */
372 { 9, "L4=RD=Sb=" }, /* 0x49 */
373 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
374 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
375 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
376 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
378 { 0, "" }, /* 0x4e */
379 { 0, "" }, /* 0x4f */
381 { 0, "L4=SD=" }, /* 0x50 */
382 { 1, "L4=SD=" }, /* 0x51 */
383 { 2, "L4=SD=" }, /* 0x52 */
384 { 3, "L4=SD=" }, /* 0x53 */
385 { 4, "L4=SD=" }, /* 0x54 */
386 { 5, "L4=SD=" }, /* 0x55 */
387 { 6, "L4=SD=" }, /* 0x56 */
388 { 7, "L4=SD=" }, /* 0x57 */
389 { 8, "L4=SD=" }, /* 0x58 */
390 { 9, "L4=SD=" }, /* 0x59 */
391 { 10, "L4=SD=" }, /* 0x5a */
392 { 11, "L4=SD=" }, /* 0x5b */
393 { 12, "L4=SD=" }, /* 0x5c */
394 { 13, "L4=SD=" }, /* 0x5d */
395 { 14, "L4=SD=" }, /* 0x5e */
396 { 15, "L4=SD=" }, /* 0x5f */
397 { 16, "L4=SD=" }, /* 0x60 */
398 { 17, "L4=SD=" }, /* 0x61 */
399 { 18, "L4=SD=" }, /* 0x62 */
400 { 19, "L4=SD=" }, /* 0x63 */
401 { 20, "L4=SD=" }, /* 0x64 */
402 { 21, "L4=SD=" }, /* 0x65 */
403 { 22, "L4=SD=" }, /* 0x66 */
404 { 23, "L4=SD=" }, /* 0x67 */
405 { 24, "L4=SD=" }, /* 0x68 */
406 { 25, "L4=SD=" }, /* 0x69 */
407 { 26, "L4=SD=" }, /* 0x6a */
408 { 27, "L4=SD=" }, /* 0x6b */
409 { 28, "L4=SD=" }, /* 0x6c */
410 { 29, "L4=SD=" }, /* 0x6d */
411 { 30, "L4=SD=" }, /* 0x6e */
412 { 31, "L4=SD=" }, /* 0x6f */
413 { 32, "L4=Sb=" }, /* 0x70 */
414 { 33, "L4=Sd=" }, /* 0x71 */
416 { 0, "" }, /* 0x72 */
417 { 0, "" }, /* 0x73 */
418 { 0, "" }, /* 0x74 */
419 { 0, "" }, /* 0x75 */
420 { 0, "" }, /* 0x76 */
421 { 0, "" }, /* 0x77 */
423 { 0, "L4=Sb=" }, /* 0x78 */
424 { 1, "L4=Sd=" }, /* 0x79 */
426 { 0, "" }, /* 0x7a */
427 { 0, "" }, /* 0x7b */
428 { 0, "" }, /* 0x7c */
429 { 0, "" }, /* 0x7d */
430 { 0, "" }, /* 0x7e */
431 { 0, "" }, /* 0x7f */
432 /* R_CODE_ONE_SYMBOL. */
433 { 0, "L4=SD=" }, /* 0x80 */
434 { 1, "L4=SD=" }, /* 0x81 */
435 { 2, "L4=SD=" }, /* 0x82 */
436 { 3, "L4=SD=" }, /* 0x83 */
437 { 4, "L4=SD=" }, /* 0x84 */
438 { 5, "L4=SD=" }, /* 0x85 */
439 { 6, "L4=SD=" }, /* 0x86 */
440 { 7, "L4=SD=" }, /* 0x87 */
441 { 8, "L4=SD=" }, /* 0x88 */
442 { 9, "L4=SD=" }, /* 0x89 */
443 { 10, "L4=SD=" }, /* 0x8q */
444 { 11, "L4=SD=" }, /* 0x8b */
445 { 12, "L4=SD=" }, /* 0x8c */
446 { 13, "L4=SD=" }, /* 0x8d */
447 { 14, "L4=SD=" }, /* 0x8e */
448 { 15, "L4=SD=" }, /* 0x8f */
449 { 16, "L4=SD=" }, /* 0x90 */
450 { 17, "L4=SD=" }, /* 0x91 */
451 { 18, "L4=SD=" }, /* 0x92 */
452 { 19, "L4=SD=" }, /* 0x93 */
453 { 20, "L4=SD=" }, /* 0x94 */
454 { 21, "L4=SD=" }, /* 0x95 */
455 { 22, "L4=SD=" }, /* 0x96 */
456 { 23, "L4=SD=" }, /* 0x97 */
457 { 24, "L4=SD=" }, /* 0x98 */
458 { 25, "L4=SD=" }, /* 0x99 */
459 { 26, "L4=SD=" }, /* 0x9a */
460 { 27, "L4=SD=" }, /* 0x9b */
461 { 28, "L4=SD=" }, /* 0x9c */
462 { 29, "L4=SD=" }, /* 0x9d */
463 { 30, "L4=SD=" }, /* 0x9e */
464 { 31, "L4=SD=" }, /* 0x9f */
465 { 32, "L4=Sb=" }, /* 0xa0 */
466 { 33, "L4=Sd=" }, /* 0xa1 */
468 { 0, "" }, /* 0xa2 */
469 { 0, "" }, /* 0xa3 */
470 { 0, "" }, /* 0xa4 */
471 { 0, "" }, /* 0xa5 */
472 { 0, "" }, /* 0xa6 */
473 { 0, "" }, /* 0xa7 */
474 { 0, "" }, /* 0xa8 */
475 { 0, "" }, /* 0xa9 */
476 { 0, "" }, /* 0xaa */
477 { 0, "" }, /* 0xab */
478 { 0, "" }, /* 0xac */
479 { 0, "" }, /* 0xad */
481 { 0, "L4=Sb=" }, /* 0xae */
482 { 1, "L4=Sd=" }, /* 0xaf */
484 { 0, "L4=Sb=" }, /* 0xb0 */
485 { 1, "L4=Sd=" }, /* 0xb1 */
487 { 0, "L4=" }, /* 0xb2 */
489 { 0, "Te=Ue=" }, /* 0xb3 */
490 { 1, "Uf=" }, /* 0xb4 */
492 { 0, "" }, /* 0xb5 */
494 { 0, "" }, /* 0xb6 */
496 { 0, "" }, /* 0xb7 */
498 { 0, "R0=" }, /* 0xb8 */
499 { 1, "Rb4*=" }, /* 0xb9 */
500 { 2, "Rd4*=" }, /* 0xba */
502 { 0, "" }, /* 0xbb */
504 { 0, "" }, /* 0xbc */
506 { 0, "Nb=" }, /* 0xbd */
507 { 1, "Nc=" }, /* 0xbe */
508 { 2, "Nd=" }, /* 0xbf */
510 { 0, "L4=" }, /* 0xc0 */
512 { 0, "L4=" }, /* 0xc1 */
514 { 0, "" }, /* 0xc2 */
516 { 0, "" }, /* 0xc3 */
518 { 0, "" }, /* 0xc4 */
520 { 0, "" }, /* 0xc5 */
522 { 0, "" }, /* 0xc6 */
524 { 0, "" }, /* 0xc7 */
526 { 0, "" }, /* 0xc8 */
527 /* R_DATA_OVERRIDE. */
528 { 0, "V0=" }, /* 0xc9 */
529 { 1, "Vb=" }, /* 0xca */
530 { 2, "Vc=" }, /* 0xcb */
531 { 3, "Vd=" }, /* 0xcc */
532 { 4, "Ve=" }, /* 0xcd */
534 { 0, "" }, /* 0xce */
536 { 0,"Sd=Ve=Ee=" }, /* 0xcf */
538 { 0, "Ob=" }, /* 0xd0 */
540 { 0, "Ob=Sd=" }, /* 0xd1 */
542 { 0, "Ob=Ve=" }, /* 0xd2 */
544 { 0, "P" }, /* 0xd3 */
545 { 1, "P" }, /* 0xd4 */
546 { 2, "P" }, /* 0xd5 */
547 { 3, "P" }, /* 0xd6 */
549 { 0, "" }, /* 0xd7 */
551 { 0, "" }, /* 0xd8 */
553 { 0, "" }, /* 0xd9 */
555 { 0, "Eb=Sd=Ve=" }, /* 0xda */
557 { 0, "Eb=Mb=" }, /* 0xdb */
558 /* R_LTP_OVERRIDE. */
559 { 0, "" }, /* 0xdc */
561 { 0, "Ob=Vf=" }, /* 0xdd */
563 { 0, "" }, /* 0xde */
564 { 0, "" }, /* 0xdf */
565 { 0, "" }, /* 0xe0 */
566 { 0, "" }, /* 0xe1 */
567 { 0, "" }, /* 0xe2 */
568 { 0, "" }, /* 0xe3 */
569 { 0, "" }, /* 0xe4 */
570 { 0, "" }, /* 0xe5 */
571 { 0, "" }, /* 0xe6 */
572 { 0, "" }, /* 0xe7 */
573 { 0, "" }, /* 0xe8 */
574 { 0, "" }, /* 0xe9 */
575 { 0, "" }, /* 0xea */
576 { 0, "" }, /* 0xeb */
577 { 0, "" }, /* 0xec */
578 { 0, "" }, /* 0xed */
579 { 0, "" }, /* 0xee */
580 { 0, "" }, /* 0xef */
581 { 0, "" }, /* 0xf0 */
582 { 0, "" }, /* 0xf1 */
583 { 0, "" }, /* 0xf2 */
584 { 0, "" }, /* 0xf3 */
585 { 0, "" }, /* 0xf4 */
586 { 0, "" }, /* 0xf5 */
587 { 0, "" }, /* 0xf6 */
588 { 0, "" }, /* 0xf7 */
589 { 0, "" }, /* 0xf8 */
590 { 0, "" }, /* 0xf9 */
591 { 0, "" }, /* 0xfa */
592 { 0, "" }, /* 0xfb */
593 { 0, "" }, /* 0xfc */
594 { 0, "" }, /* 0xfd */
595 { 0, "" }, /* 0xfe */
596 { 0, "" }, /* 0xff */
599 static const int comp1_opcodes[] =
621 static const int comp2_opcodes[] =
630 static const int comp3_opcodes[] =
637 /* These apparently are not in older versions of hpux reloc.h (hpux7). */
639 #define R_DLT_REL 0x78
643 #define R_AUX_UNWIND 0xcf
647 #define R_SEC_STMT 0xd7
650 /* And these first appeared in hpux10. */
651 #ifndef R_SHORT_PCREL_MODE
652 #define NO_PCREL_MODES
653 #define R_SHORT_PCREL_MODE 0x3e
656 #ifndef R_LONG_PCREL_MODE
657 #define R_LONG_PCREL_MODE 0x3f
669 #define R_LINETAB 0xda
672 #ifndef R_LINETAB_ESC
673 #define R_LINETAB_ESC 0xdb
676 #ifndef R_LTP_OVERRIDE
677 #define R_LTP_OVERRIDE 0xdc
681 #define R_COMMENT 0xdd
684 #define SOM_HOWTO(TYPE, NAME) \
685 HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
687 static reloc_howto_type som_hppa_howto_table[] =
689 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
690 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
691 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
692 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
693 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
694 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
695 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
696 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
697 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
698 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
699 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
700 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
701 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
702 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
703 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
704 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
705 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
706 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
707 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
708 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
709 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
710 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
711 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
712 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
713 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
714 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
715 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
716 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
717 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
718 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
719 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
720 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
721 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
722 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
723 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
724 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
725 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
726 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
727 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
728 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
729 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
730 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
731 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
732 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
733 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
734 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
735 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
736 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
737 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
738 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
739 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
740 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
741 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
742 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
743 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
744 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
745 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
746 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
747 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
748 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
749 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
750 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
751 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
752 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
753 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
754 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
755 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
756 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
757 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
758 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
759 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
760 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
761 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
762 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
763 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
764 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
765 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
766 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
767 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
768 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
769 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
770 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
771 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
772 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
773 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
774 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
775 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
776 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
777 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
778 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
779 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
780 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
781 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
782 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
783 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
784 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
785 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
786 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
787 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
788 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
789 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
790 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
791 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
792 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
793 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
794 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
795 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
796 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
797 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
798 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
799 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
800 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
801 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
802 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
803 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
804 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
805 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
806 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
807 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
808 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
809 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
810 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
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_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
818 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
819 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
820 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
821 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
822 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
823 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
824 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
825 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
826 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
827 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
828 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
829 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
830 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
831 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
832 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
833 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
834 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
835 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
836 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
837 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
838 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
839 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
840 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
841 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
842 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
843 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
844 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
845 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
846 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
847 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
848 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
849 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
850 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
851 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
852 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
853 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
854 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
855 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
856 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
857 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
858 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
859 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
860 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
861 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
862 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
863 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
864 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
865 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
866 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
867 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
868 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
869 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
870 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
871 SOM_HOWTO (R_EXIT, "R_EXIT"),
872 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
873 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
874 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
875 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
876 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
877 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
878 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
879 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
880 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
881 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
882 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
883 SOM_HOWTO (R_FSEL, "R_FSEL"),
884 SOM_HOWTO (R_LSEL, "R_LSEL"),
885 SOM_HOWTO (R_RSEL, "R_RSEL"),
886 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
887 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
888 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
889 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
890 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
891 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
892 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
893 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
894 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
895 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
896 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
897 SOM_HOWTO (R_COMP1, "R_COMP1"),
898 SOM_HOWTO (R_COMP2, "R_COMP2"),
899 SOM_HOWTO (R_COMP3, "R_COMP3"),
900 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
901 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
902 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
903 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
904 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
905 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
906 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
907 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
908 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
909 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
910 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
911 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
912 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
913 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
914 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
915 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
916 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
917 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
918 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
919 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
920 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
921 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
922 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
923 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
924 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
925 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
926 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
927 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
928 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
929 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
930 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
931 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
932 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
933 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
934 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
935 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
936 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
937 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
938 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
939 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
940 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
941 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
942 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
943 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
944 SOM_HOWTO (R_RESERVED, "R_RESERVED")
947 /* Initialize the SOM relocation queue. By definition the queue holds
948 the last four multibyte fixups. */
951 som_initialize_reloc_queue (struct reloc_queue *queue)
953 queue[0].reloc = NULL;
955 queue[1].reloc = NULL;
957 queue[2].reloc = NULL;
959 queue[3].reloc = NULL;
963 /* Insert a new relocation into the relocation queue. */
966 som_reloc_queue_insert (unsigned char *p,
968 struct reloc_queue *queue)
970 queue[3].reloc = queue[2].reloc;
971 queue[3].size = queue[2].size;
972 queue[2].reloc = queue[1].reloc;
973 queue[2].size = queue[1].size;
974 queue[1].reloc = queue[0].reloc;
975 queue[1].size = queue[0].size;
977 queue[0].size = size;
980 /* When an entry in the relocation queue is reused, the entry moves
981 to the front of the queue. */
984 som_reloc_queue_fix (struct reloc_queue *queue, unsigned int index)
991 unsigned char *tmp1 = queue[0].reloc;
992 unsigned int tmp2 = queue[0].size;
994 queue[0].reloc = queue[1].reloc;
995 queue[0].size = queue[1].size;
996 queue[1].reloc = tmp1;
997 queue[1].size = tmp2;
1003 unsigned char *tmp1 = queue[0].reloc;
1004 unsigned int tmp2 = queue[0].size;
1006 queue[0].reloc = queue[2].reloc;
1007 queue[0].size = queue[2].size;
1008 queue[2].reloc = queue[1].reloc;
1009 queue[2].size = queue[1].size;
1010 queue[1].reloc = tmp1;
1011 queue[1].size = tmp2;
1017 unsigned char *tmp1 = queue[0].reloc;
1018 unsigned int tmp2 = queue[0].size;
1020 queue[0].reloc = queue[3].reloc;
1021 queue[0].size = queue[3].size;
1022 queue[3].reloc = queue[2].reloc;
1023 queue[3].size = queue[2].size;
1024 queue[2].reloc = queue[1].reloc;
1025 queue[2].size = queue[1].size;
1026 queue[1].reloc = tmp1;
1027 queue[1].size = tmp2;
1033 /* Search for a particular relocation in the relocation queue. */
1036 som_reloc_queue_find (unsigned char *p,
1038 struct reloc_queue *queue)
1040 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
1041 && size == queue[0].size)
1043 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
1044 && size == queue[1].size)
1046 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1047 && size == queue[2].size)
1049 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1050 && size == queue[3].size)
1055 static unsigned char *
1056 try_prev_fixup (bfd *abfd ATTRIBUTE_UNUSED,
1057 unsigned int *subspace_reloc_sizep,
1060 struct reloc_queue *queue)
1062 int queue_index = som_reloc_queue_find (p, size, queue);
1064 if (queue_index != -1)
1066 /* Found this in a previous fixup. Undo the fixup we
1067 just built and use R_PREV_FIXUP instead. We saved
1068 a total of size - 1 bytes in the fixup stream. */
1069 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1071 *subspace_reloc_sizep += 1;
1072 som_reloc_queue_fix (queue, queue_index);
1076 som_reloc_queue_insert (p, size, queue);
1077 *subspace_reloc_sizep += size;
1083 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1084 bytes without any relocation. Update the size of the subspace
1085 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
1086 current pointer into the relocation stream. */
1088 static unsigned char *
1089 som_reloc_skip (bfd *abfd,
1092 unsigned int *subspace_reloc_sizep,
1093 struct reloc_queue *queue)
1095 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1096 then R_PREV_FIXUPs to get the difference down to a
1098 if (skip >= 0x1000000)
1101 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1102 bfd_put_8 (abfd, 0xff, p + 1);
1103 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
1104 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1105 while (skip >= 0x1000000)
1108 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1110 *subspace_reloc_sizep += 1;
1111 /* No need to adjust queue here since we are repeating the
1112 most recent fixup. */
1116 /* The difference must be less than 0x1000000. Use one
1117 more R_NO_RELOCATION entry to get to the right difference. */
1118 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1120 /* Difference can be handled in a simple single-byte
1121 R_NO_RELOCATION entry. */
1124 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1125 *subspace_reloc_sizep += 1;
1128 /* Handle it with a two byte R_NO_RELOCATION entry. */
1129 else if (skip <= 0x1000)
1131 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1132 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1133 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1135 /* Handle it with a three byte R_NO_RELOCATION entry. */
1138 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
1139 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
1140 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1143 /* Ugh. Punt and use a 4 byte entry. */
1146 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1147 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
1148 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
1149 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1154 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1155 from a BFD relocation. Update the size of the subspace relocation
1156 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1157 into the relocation stream. */
1159 static unsigned char *
1160 som_reloc_addend (bfd *abfd,
1163 unsigned int *subspace_reloc_sizep,
1164 struct reloc_queue *queue)
1166 if (addend + 0x80 < 0x100)
1168 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1169 bfd_put_8 (abfd, addend, p + 1);
1170 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1172 else if (addend + 0x8000 < 0x10000)
1174 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1175 bfd_put_16 (abfd, addend, p + 1);
1176 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1178 else if (addend + 0x800000 < 0x1000000)
1180 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1181 bfd_put_8 (abfd, addend >> 16, p + 1);
1182 bfd_put_16 (abfd, addend, p + 2);
1183 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1187 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1188 bfd_put_32 (abfd, addend, p + 1);
1189 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1194 /* Handle a single function call relocation. */
1196 static unsigned char *
1197 som_reloc_call (bfd *abfd,
1199 unsigned int *subspace_reloc_sizep,
1202 struct reloc_queue *queue)
1204 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1205 int rtn_bits = arg_bits & 0x3;
1208 /* You'll never believe all this is necessary to handle relocations
1209 for function calls. Having to compute and pack the argument
1210 relocation bits is the real nightmare.
1212 If you're interested in how this works, just forget it. You really
1213 do not want to know about this braindamage. */
1215 /* First see if this can be done with a "simple" relocation. Simple
1216 relocations have a symbol number < 0x100 and have simple encodings
1217 of argument relocations. */
1219 if (sym_num < 0x100)
1231 case 1 << 8 | 1 << 6:
1232 case 1 << 8 | 1 << 6 | 1:
1235 case 1 << 8 | 1 << 6 | 1 << 4:
1236 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1239 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1240 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1244 /* Not one of the easy encodings. This will have to be
1245 handled by the more complex code below. */
1251 /* Account for the return value too. */
1255 /* Emit a 2 byte relocation. Then see if it can be handled
1256 with a relocation which is already in the relocation queue. */
1257 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1258 bfd_put_8 (abfd, sym_num, p + 1);
1259 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1264 /* If this could not be handled with a simple relocation, then do a hard
1265 one. Hard relocations occur if the symbol number was too high or if
1266 the encoding of argument relocation bits is too complex. */
1269 /* Don't ask about these magic sequences. I took them straight
1270 from gas-1.36 which took them from the a.out man page. */
1272 if ((arg_bits >> 6 & 0xf) == 0xe)
1275 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1276 if ((arg_bits >> 2 & 0xf) == 0xe)
1279 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
1281 /* Output the first two bytes of the relocation. These describe
1282 the length of the relocation and encoding style. */
1283 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1284 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1286 bfd_put_8 (abfd, type, p + 1);
1288 /* Now output the symbol index and see if this bizarre relocation
1289 just happened to be in the relocation queue. */
1290 if (sym_num < 0x100)
1292 bfd_put_8 (abfd, sym_num, p + 2);
1293 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1297 bfd_put_8 (abfd, sym_num >> 16, p + 2);
1298 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
1299 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1305 /* Return the logarithm of X, base 2, considering X unsigned,
1306 if X is a power of 2. Otherwise, returns -1. */
1309 exact_log2 (unsigned int x)
1313 /* Test for 0 or a power of 2. */
1314 if (x == 0 || x != (x & -x))
1317 while ((x >>= 1) != 0)
1322 static bfd_reloc_status_type
1323 hppa_som_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1324 arelent *reloc_entry,
1325 asymbol *symbol_in ATTRIBUTE_UNUSED,
1326 void *data ATTRIBUTE_UNUSED,
1327 asection *input_section,
1329 char **error_message ATTRIBUTE_UNUSED)
1332 reloc_entry->address += input_section->output_offset;
1334 return bfd_reloc_ok;
1337 /* Given a generic HPPA relocation type, the instruction format,
1338 and a field selector, return one or more appropriate SOM relocations. */
1341 hppa_som_gen_reloc_type (bfd *abfd,
1344 enum hppa_reloc_field_selector_type_alt field,
1348 int *final_type, **final_types;
1350 final_types = bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1351 final_type = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1352 if (!final_types || !final_type)
1355 /* The field selector may require additional relocations to be
1356 generated. It's impossible to know at this moment if additional
1357 relocations will be needed, so we make them. The code to actually
1358 write the relocation/fixup stream is responsible for removing
1359 any redundant relocations. */
1366 final_types[0] = final_type;
1367 final_types[1] = NULL;
1368 final_types[2] = NULL;
1369 *final_type = base_type;
1375 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1376 if (!final_types[0])
1378 if (field == e_tsel)
1379 *final_types[0] = R_FSEL;
1380 else if (field == e_ltsel)
1381 *final_types[0] = R_LSEL;
1383 *final_types[0] = R_RSEL;
1384 final_types[1] = final_type;
1385 final_types[2] = NULL;
1386 *final_type = base_type;
1391 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1392 if (!final_types[0])
1394 *final_types[0] = R_S_MODE;
1395 final_types[1] = final_type;
1396 final_types[2] = NULL;
1397 *final_type = base_type;
1402 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1403 if (!final_types[0])
1405 *final_types[0] = R_N_MODE;
1406 final_types[1] = final_type;
1407 final_types[2] = NULL;
1408 *final_type = base_type;
1413 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1414 if (!final_types[0])
1416 *final_types[0] = R_D_MODE;
1417 final_types[1] = final_type;
1418 final_types[2] = NULL;
1419 *final_type = base_type;
1424 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1425 if (!final_types[0])
1427 *final_types[0] = R_R_MODE;
1428 final_types[1] = final_type;
1429 final_types[2] = NULL;
1430 *final_type = base_type;
1434 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1435 if (!final_types[0])
1437 *final_types[0] = R_N1SEL;
1438 final_types[1] = final_type;
1439 final_types[2] = NULL;
1440 *final_type = base_type;
1445 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1446 if (!final_types[0])
1448 *final_types[0] = R_N0SEL;
1449 final_types[1] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1450 if (!final_types[1])
1452 if (field == e_nlsel)
1453 *final_types[1] = R_N_MODE;
1455 *final_types[1] = R_R_MODE;
1456 final_types[2] = final_type;
1457 final_types[3] = NULL;
1458 *final_type = base_type;
1461 /* FIXME: These two field selectors are not currently supported. */
1470 /* The difference of two symbols needs *very* special handling. */
1473 bfd_size_type amt = sizeof (int);
1475 final_types[0] = bfd_alloc (abfd, amt);
1476 final_types[1] = bfd_alloc (abfd, amt);
1477 final_types[2] = bfd_alloc (abfd, amt);
1478 final_types[3] = bfd_alloc (abfd, amt);
1479 if (!final_types[0] || !final_types[1] || !final_types[2])
1481 if (field == e_fsel)
1482 *final_types[0] = R_FSEL;
1483 else if (field == e_rsel)
1484 *final_types[0] = R_RSEL;
1485 else if (field == e_lsel)
1486 *final_types[0] = R_LSEL;
1487 *final_types[1] = R_COMP2;
1488 *final_types[2] = R_COMP2;
1489 *final_types[3] = R_COMP1;
1490 final_types[4] = final_type;
1492 *final_types[4] = R_DATA_EXPR;
1494 *final_types[4] = R_CODE_EXPR;
1495 final_types[5] = NULL;
1498 /* PLABELs get their own relocation type. */
1499 else if (field == e_psel
1501 || field == e_rpsel)
1503 /* A PLABEL relocation that has a size of 32 bits must
1504 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1506 *final_type = R_DATA_PLABEL;
1508 *final_type = R_CODE_PLABEL;
1511 else if (field == e_tsel
1513 || field == e_rtsel)
1514 *final_type = R_DLT_REL;
1515 /* A relocation in the data space is always a full 32bits. */
1516 else if (format == 32)
1518 *final_type = R_DATA_ONE_SYMBOL;
1520 /* If there's no SOM symbol type associated with this BFD
1521 symbol, then set the symbol type to ST_DATA.
1523 Only do this if the type is going to default later when
1524 we write the object file.
1526 This is done so that the linker never encounters an
1527 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1529 This allows the compiler to generate exception handling
1532 Note that one day we may need to also emit BEGIN_BRTAB and
1533 END_BRTAB to prevent the linker from optimizing away insns
1534 in exception handling regions. */
1535 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1536 && (sym->flags & BSF_SECTION_SYM) == 0
1537 && (sym->flags & BSF_FUNCTION) == 0
1538 && ! bfd_is_com_section (sym->section))
1539 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1544 /* More PLABEL special cases. */
1547 || field == e_rpsel)
1548 *final_type = R_DATA_PLABEL;
1551 case R_HPPA_COMPLEX:
1552 /* The difference of two symbols needs *very* special handling. */
1555 bfd_size_type amt = sizeof (int);
1557 final_types[0] = bfd_alloc (abfd, amt);
1558 final_types[1] = bfd_alloc (abfd, amt);
1559 final_types[2] = bfd_alloc (abfd, amt);
1560 final_types[3] = bfd_alloc (abfd, amt);
1561 if (!final_types[0] || !final_types[1] || !final_types[2])
1563 if (field == e_fsel)
1564 *final_types[0] = R_FSEL;
1565 else if (field == e_rsel)
1566 *final_types[0] = R_RSEL;
1567 else if (field == e_lsel)
1568 *final_types[0] = R_LSEL;
1569 *final_types[1] = R_COMP2;
1570 *final_types[2] = R_COMP2;
1571 *final_types[3] = R_COMP1;
1572 final_types[4] = final_type;
1574 *final_types[4] = R_DATA_EXPR;
1576 *final_types[4] = R_CODE_EXPR;
1577 final_types[5] = NULL;
1584 case R_HPPA_ABS_CALL:
1585 /* Right now we can default all these. */
1588 case R_HPPA_PCREL_CALL:
1590 #ifndef NO_PCREL_MODES
1591 /* If we have short and long pcrel modes, then generate the proper
1592 mode selector, then the pcrel relocation. Redundant selectors
1593 will be eliminated as the relocs are sized and emitted. */
1594 bfd_size_type amt = sizeof (int);
1596 final_types[0] = bfd_alloc (abfd, amt);
1597 if (!final_types[0])
1600 *final_types[0] = R_SHORT_PCREL_MODE;
1602 *final_types[0] = R_LONG_PCREL_MODE;
1603 final_types[1] = final_type;
1604 final_types[2] = NULL;
1605 *final_type = base_type;
1613 /* Return the address of the correct entry in the PA SOM relocation
1616 static reloc_howto_type *
1617 som_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1618 bfd_reloc_code_real_type code)
1620 if ((int) code < (int) R_NO_RELOCATION + 255)
1622 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1623 return &som_hppa_howto_table[(int) code];
1629 /* Perform some initialization for an object. Save results of this
1630 initialization in the BFD. */
1632 static const bfd_target *
1633 som_object_setup (bfd *abfd,
1634 struct header *file_hdrp,
1635 struct som_exec_auxhdr *aux_hdrp,
1636 unsigned long current_offset)
1640 /* som_mkobject will set bfd_error if som_mkobject fails. */
1641 if (! som_mkobject (abfd))
1644 /* Set BFD flags based on what information is available in the SOM. */
1645 abfd->flags = BFD_NO_FLAGS;
1646 if (file_hdrp->symbol_total)
1647 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1649 switch (file_hdrp->a_magic)
1652 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1655 abfd->flags |= (WP_TEXT | EXEC_P);
1658 abfd->flags |= (EXEC_P);
1661 abfd->flags |= HAS_RELOC;
1669 abfd->flags |= DYNAMIC;
1676 /* Save the auxiliary header. */
1677 obj_som_exec_hdr (abfd) = aux_hdrp;
1679 /* Allocate space to hold the saved exec header information. */
1680 obj_som_exec_data (abfd) = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
1681 if (obj_som_exec_data (abfd) == NULL)
1684 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
1686 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
1687 apparently the latest HPUX linker is using NEW_VERSION_ID now.
1689 It's about time, OSF has used the new id since at least 1992;
1690 HPUX didn't start till nearly 1995!.
1692 The new approach examines the entry field for an executable. If
1693 it is not 4-byte aligned then it's not a proper code address and
1694 we guess it's really the executable flags. For a main program,
1695 we also consider zero to be indicative of a buggy linker, since
1696 that is not a valid entry point. The entry point for a shared
1697 library, however, can be zero so we do not consider that to be
1698 indicative of a buggy linker. */
1703 for (section = abfd->sections; section; section = section->next)
1707 if ((section->flags & SEC_CODE) == 0)
1709 entry = aux_hdrp->exec_entry + aux_hdrp->exec_tmem;
1710 if (entry >= section->vma
1711 && entry < section->vma + section->size)
1714 if ((aux_hdrp->exec_entry == 0 && !(abfd->flags & DYNAMIC))
1715 || (aux_hdrp->exec_entry & 0x3) != 0
1718 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
1719 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
1723 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
1724 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
1728 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
1730 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
1731 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
1733 /* Initialize the saved symbol table and string table to NULL.
1734 Save important offsets and sizes from the SOM header into
1736 obj_som_stringtab (abfd) = NULL;
1737 obj_som_symtab (abfd) = NULL;
1738 obj_som_sorted_syms (abfd) = NULL;
1739 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
1740 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
1741 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
1743 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
1745 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
1750 /* Convert all of the space and subspace info into BFD sections. Each space
1751 contains a number of subspaces, which in turn describe the mapping between
1752 regions of the exec file, and the address space that the program runs in.
1753 BFD sections which correspond to spaces will overlap the sections for the
1754 associated subspaces. */
1757 setup_sections (bfd *abfd,
1758 struct header *file_hdr,
1759 unsigned long current_offset)
1761 char *space_strings;
1762 unsigned int space_index, i;
1763 unsigned int total_subspaces = 0;
1764 asection **subspace_sections = NULL;
1768 /* First, read in space names. */
1769 amt = file_hdr->space_strings_size;
1770 space_strings = bfd_malloc (amt);
1771 if (!space_strings && amt != 0)
1774 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
1777 if (bfd_bread (space_strings, amt, abfd) != amt)
1780 /* Loop over all of the space dictionaries, building up sections. */
1781 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
1783 struct space_dictionary_record space;
1784 struct som_subspace_dictionary_record subspace, save_subspace;
1785 unsigned int subspace_index;
1786 asection *space_asect;
1787 bfd_size_type space_size = 0;
1790 /* Read the space dictionary element. */
1792 (current_offset + file_hdr->space_location
1793 + space_index * sizeof space),
1797 if (bfd_bread (&space, amt, abfd) != amt)
1800 /* Setup the space name string. */
1801 space.name.n_name = space.name.n_strx + space_strings;
1803 /* Make a section out of it. */
1804 amt = strlen (space.name.n_name) + 1;
1805 newname = bfd_alloc (abfd, amt);
1808 strcpy (newname, space.name.n_name);
1810 space_asect = bfd_make_section_anyway (abfd, newname);
1814 if (space.is_loadable == 0)
1815 space_asect->flags |= SEC_DEBUGGING;
1817 /* Set up all the attributes for the space. */
1818 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
1819 space.is_private, space.sort_key,
1820 space.space_number))
1823 /* If the space has no subspaces, then we're done. */
1824 if (space.subspace_quantity == 0)
1827 /* Now, read in the first subspace for this space. */
1829 (current_offset + file_hdr->subspace_location
1830 + space.subspace_index * sizeof subspace),
1833 amt = sizeof subspace;
1834 if (bfd_bread (&subspace, amt, abfd) != amt)
1836 /* Seek back to the start of the subspaces for loop below. */
1838 (current_offset + file_hdr->subspace_location
1839 + space.subspace_index * sizeof subspace),
1843 /* Setup the start address and file loc from the first subspace
1845 space_asect->vma = subspace.subspace_start;
1846 space_asect->filepos = subspace.file_loc_init_value + current_offset;
1847 space_asect->alignment_power = exact_log2 (subspace.alignment);
1848 if (space_asect->alignment_power == (unsigned) -1)
1851 /* Initialize save_subspace so we can reliably determine if this
1852 loop placed any useful values into it. */
1853 memset (&save_subspace, 0, sizeof (save_subspace));
1855 /* Loop over the rest of the subspaces, building up more sections. */
1856 for (subspace_index = 0; subspace_index < space.subspace_quantity;
1859 asection *subspace_asect;
1861 /* Read in the next subspace. */
1862 amt = sizeof subspace;
1863 if (bfd_bread (&subspace, amt, abfd) != amt)
1866 /* Setup the subspace name string. */
1867 subspace.name.n_name = subspace.name.n_strx + space_strings;
1869 amt = strlen (subspace.name.n_name) + 1;
1870 newname = bfd_alloc (abfd, amt);
1873 strcpy (newname, subspace.name.n_name);
1875 /* Make a section out of this subspace. */
1876 subspace_asect = bfd_make_section_anyway (abfd, newname);
1877 if (!subspace_asect)
1880 /* Store private information about the section. */
1881 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
1882 subspace.access_control_bits,
1887 subspace.dup_common))
1890 /* Keep an easy mapping between subspaces and sections.
1891 Note we do not necessarily read the subspaces in the
1892 same order in which they appear in the object file.
1894 So to make the target index come out correctly, we
1895 store the location of the subspace header in target
1896 index, then sort using the location of the subspace
1897 header as the key. Then we can assign correct
1898 subspace indices. */
1900 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
1902 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
1903 by the access_control_bits in the subspace header. */
1904 switch (subspace.access_control_bits >> 4)
1906 /* Readonly data. */
1908 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
1913 subspace_asect->flags |= SEC_DATA;
1916 /* Readonly code and the gateways.
1917 Gateways have other attributes which do not map
1918 into anything BFD knows about. */
1924 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
1927 /* dynamic (writable) code. */
1929 subspace_asect->flags |= SEC_CODE;
1933 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
1934 subspace_asect->flags |= SEC_LINK_ONCE;
1936 if (subspace.subspace_length > 0)
1937 subspace_asect->flags |= SEC_HAS_CONTENTS;
1939 if (subspace.is_loadable)
1940 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
1942 subspace_asect->flags |= SEC_DEBUGGING;
1944 if (subspace.code_only)
1945 subspace_asect->flags |= SEC_CODE;
1947 /* Both file_loc_init_value and initialization_length will
1948 be zero for a BSS like subspace. */
1949 if (subspace.file_loc_init_value == 0
1950 && subspace.initialization_length == 0)
1951 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
1953 /* This subspace has relocations.
1954 The fixup_request_quantity is a byte count for the number of
1955 entries in the relocation stream; it is not the actual number
1956 of relocations in the subspace. */
1957 if (subspace.fixup_request_quantity != 0)
1959 subspace_asect->flags |= SEC_RELOC;
1960 subspace_asect->rel_filepos = subspace.fixup_request_index;
1961 som_section_data (subspace_asect)->reloc_size
1962 = subspace.fixup_request_quantity;
1963 /* We can not determine this yet. When we read in the
1964 relocation table the correct value will be filled in. */
1965 subspace_asect->reloc_count = (unsigned) -1;
1968 /* Update save_subspace if appropriate. */
1969 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
1970 save_subspace = subspace;
1972 subspace_asect->vma = subspace.subspace_start;
1973 subspace_asect->size = subspace.subspace_length;
1974 subspace_asect->filepos = (subspace.file_loc_init_value
1976 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
1977 if (subspace_asect->alignment_power == (unsigned) -1)
1980 /* Keep track of the accumulated sizes of the sections. */
1981 space_size += subspace.subspace_length;
1984 /* This can happen for a .o which defines symbols in otherwise
1986 if (!save_subspace.file_loc_init_value)
1987 space_asect->size = 0;
1990 if (file_hdr->a_magic != RELOC_MAGIC)
1992 /* Setup the size for the space section based upon the info
1993 in the last subspace of the space. */
1994 space_asect->size = (save_subspace.subspace_start
1996 + save_subspace.subspace_length);
2000 /* The subspace_start field is not initialised in relocatable
2001 only objects, so it cannot be used for length calculations.
2002 Instead we use the space_size value which we have been
2003 accumulating. This isn't an accurate estimate since it
2004 ignores alignment and ordering issues. */
2005 space_asect->size = space_size;
2009 /* Now that we've read in all the subspace records, we need to assign
2010 a target index to each subspace. */
2011 amt = total_subspaces;
2012 amt *= sizeof (asection *);
2013 subspace_sections = bfd_malloc (amt);
2014 if (subspace_sections == NULL)
2017 for (i = 0, section = abfd->sections; section; section = section->next)
2019 if (!som_is_subspace (section))
2022 subspace_sections[i] = section;
2025 qsort (subspace_sections, total_subspaces,
2026 sizeof (asection *), compare_subspaces);
2028 /* subspace_sections is now sorted in the order in which the subspaces
2029 appear in the object file. Assign an index to each one now. */
2030 for (i = 0; i < total_subspaces; i++)
2031 subspace_sections[i]->target_index = i;
2033 if (space_strings != NULL)
2034 free (space_strings);
2036 if (subspace_sections != NULL)
2037 free (subspace_sections);
2042 if (space_strings != NULL)
2043 free (space_strings);
2045 if (subspace_sections != NULL)
2046 free (subspace_sections);
2050 /* Read in a SOM object and make it into a BFD. */
2052 static const bfd_target *
2053 som_object_p (bfd *abfd)
2055 struct header file_hdr;
2056 struct som_exec_auxhdr *aux_hdr_ptr = NULL;
2057 unsigned long current_offset = 0;
2058 struct lst_header lst_header;
2059 struct som_entry som_entry;
2061 #define ENTRY_SIZE sizeof (struct som_entry)
2063 amt = FILE_HDR_SIZE;
2064 if (bfd_bread ((void *) &file_hdr, amt, abfd) != amt)
2066 if (bfd_get_error () != bfd_error_system_call)
2067 bfd_set_error (bfd_error_wrong_format);
2071 if (!_PA_RISC_ID (file_hdr.system_id))
2073 bfd_set_error (bfd_error_wrong_format);
2077 switch (file_hdr.a_magic)
2089 #ifdef SHARED_MAGIC_CNX
2090 case SHARED_MAGIC_CNX:
2096 /* Read the lst header and determine where the SOM directory begins. */
2098 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2100 if (bfd_get_error () != bfd_error_system_call)
2101 bfd_set_error (bfd_error_wrong_format);
2106 if (bfd_bread ((void *) &lst_header, amt, abfd) != amt)
2108 if (bfd_get_error () != bfd_error_system_call)
2109 bfd_set_error (bfd_error_wrong_format);
2113 /* Position to and read the first directory entry. */
2115 if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0)
2117 if (bfd_get_error () != bfd_error_system_call)
2118 bfd_set_error (bfd_error_wrong_format);
2123 if (bfd_bread ((void *) &som_entry, amt, abfd) != amt)
2125 if (bfd_get_error () != bfd_error_system_call)
2126 bfd_set_error (bfd_error_wrong_format);
2130 /* Now position to the first SOM. */
2132 if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0)
2134 if (bfd_get_error () != bfd_error_system_call)
2135 bfd_set_error (bfd_error_wrong_format);
2139 current_offset = som_entry.location;
2141 /* And finally, re-read the som header. */
2142 amt = FILE_HDR_SIZE;
2143 if (bfd_bread ((void *) &file_hdr, amt, abfd) != amt)
2145 if (bfd_get_error () != bfd_error_system_call)
2146 bfd_set_error (bfd_error_wrong_format);
2154 bfd_set_error (bfd_error_wrong_format);
2158 if (file_hdr.version_id != VERSION_ID
2159 && file_hdr.version_id != NEW_VERSION_ID)
2161 bfd_set_error (bfd_error_wrong_format);
2165 /* If the aux_header_size field in the file header is zero, then this
2166 object is an incomplete executable (a .o file). Do not try to read
2167 a non-existant auxiliary header. */
2168 if (file_hdr.aux_header_size != 0)
2170 aux_hdr_ptr = bfd_zalloc (abfd,
2171 (bfd_size_type) sizeof (*aux_hdr_ptr));
2172 if (aux_hdr_ptr == NULL)
2175 if (bfd_bread ((void *) aux_hdr_ptr, amt, abfd) != amt)
2177 if (bfd_get_error () != bfd_error_system_call)
2178 bfd_set_error (bfd_error_wrong_format);
2183 if (!setup_sections (abfd, &file_hdr, current_offset))
2185 /* setup_sections does not bubble up a bfd error code. */
2186 bfd_set_error (bfd_error_bad_value);
2190 /* This appears to be a valid SOM object. Do some initialization. */
2191 return som_object_setup (abfd, &file_hdr, aux_hdr_ptr, current_offset);
2194 /* Create a SOM object. */
2197 som_mkobject (bfd *abfd)
2199 /* Allocate memory to hold backend information. */
2200 abfd->tdata.som_data = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2201 if (abfd->tdata.som_data == NULL)
2206 /* Initialize some information in the file header. This routine makes
2207 not attempt at doing the right thing for a full executable; it
2208 is only meant to handle relocatable objects. */
2211 som_prep_headers (bfd *abfd)
2213 struct header *file_hdr;
2215 bfd_size_type amt = sizeof (struct header);
2217 /* Make and attach a file header to the BFD. */
2218 file_hdr = bfd_zalloc (abfd, amt);
2219 if (file_hdr == NULL)
2221 obj_som_file_hdr (abfd) = file_hdr;
2223 if (abfd->flags & (EXEC_P | DYNAMIC))
2225 /* Make and attach an exec header to the BFD. */
2226 amt = sizeof (struct som_exec_auxhdr);
2227 obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
2228 if (obj_som_exec_hdr (abfd) == NULL)
2231 if (abfd->flags & D_PAGED)
2232 file_hdr->a_magic = DEMAND_MAGIC;
2233 else if (abfd->flags & WP_TEXT)
2234 file_hdr->a_magic = SHARE_MAGIC;
2236 else if (abfd->flags & DYNAMIC)
2237 file_hdr->a_magic = SHL_MAGIC;
2240 file_hdr->a_magic = EXEC_MAGIC;
2243 file_hdr->a_magic = RELOC_MAGIC;
2245 /* These fields are optional, and embedding timestamps is not always
2246 a wise thing to do, it makes comparing objects during a multi-stage
2247 bootstrap difficult. */
2248 file_hdr->file_time.secs = 0;
2249 file_hdr->file_time.nanosecs = 0;
2251 file_hdr->entry_space = 0;
2252 file_hdr->entry_subspace = 0;
2253 file_hdr->entry_offset = 0;
2254 file_hdr->presumed_dp = 0;
2256 /* Now iterate over the sections translating information from
2257 BFD sections to SOM spaces/subspaces. */
2258 for (section = abfd->sections; section != NULL; section = section->next)
2260 /* Ignore anything which has not been marked as a space or
2262 if (!som_is_space (section) && !som_is_subspace (section))
2265 if (som_is_space (section))
2267 /* Allocate space for the space dictionary. */
2268 amt = sizeof (struct space_dictionary_record);
2269 som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
2270 if (som_section_data (section)->space_dict == NULL)
2272 /* Set space attributes. Note most attributes of SOM spaces
2273 are set based on the subspaces it contains. */
2274 som_section_data (section)->space_dict->loader_fix_index = -1;
2275 som_section_data (section)->space_dict->init_pointer_index = -1;
2277 /* Set more attributes that were stuffed away in private data. */
2278 som_section_data (section)->space_dict->sort_key =
2279 som_section_data (section)->copy_data->sort_key;
2280 som_section_data (section)->space_dict->is_defined =
2281 som_section_data (section)->copy_data->is_defined;
2282 som_section_data (section)->space_dict->is_private =
2283 som_section_data (section)->copy_data->is_private;
2284 som_section_data (section)->space_dict->space_number =
2285 som_section_data (section)->copy_data->space_number;
2289 /* Allocate space for the subspace dictionary. */
2290 amt = sizeof (struct som_subspace_dictionary_record);
2291 som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
2292 if (som_section_data (section)->subspace_dict == NULL)
2295 /* Set subspace attributes. Basic stuff is done here, additional
2296 attributes are filled in later as more information becomes
2298 if (section->flags & SEC_ALLOC)
2299 som_section_data (section)->subspace_dict->is_loadable = 1;
2301 if (section->flags & SEC_CODE)
2302 som_section_data (section)->subspace_dict->code_only = 1;
2304 som_section_data (section)->subspace_dict->subspace_start =
2306 som_section_data (section)->subspace_dict->subspace_length =
2308 som_section_data (section)->subspace_dict->initialization_length =
2310 som_section_data (section)->subspace_dict->alignment =
2311 1 << section->alignment_power;
2313 /* Set more attributes that were stuffed away in private data. */
2314 som_section_data (section)->subspace_dict->sort_key =
2315 som_section_data (section)->copy_data->sort_key;
2316 som_section_data (section)->subspace_dict->access_control_bits =
2317 som_section_data (section)->copy_data->access_control_bits;
2318 som_section_data (section)->subspace_dict->quadrant =
2319 som_section_data (section)->copy_data->quadrant;
2320 som_section_data (section)->subspace_dict->is_comdat =
2321 som_section_data (section)->copy_data->is_comdat;
2322 som_section_data (section)->subspace_dict->is_common =
2323 som_section_data (section)->copy_data->is_common;
2324 som_section_data (section)->subspace_dict->dup_common =
2325 som_section_data (section)->copy_data->dup_common;
2331 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2334 som_is_space (asection *section)
2336 /* If no copy data is available, then it's neither a space nor a
2338 if (som_section_data (section)->copy_data == NULL)
2341 /* If the containing space isn't the same as the given section,
2342 then this isn't a space. */
2343 if (som_section_data (section)->copy_data->container != section
2344 && (som_section_data (section)->copy_data->container->output_section
2348 /* OK. Must be a space. */
2352 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2355 som_is_subspace (asection *section)
2357 /* If no copy data is available, then it's neither a space nor a
2359 if (som_section_data (section)->copy_data == NULL)
2362 /* If the containing space is the same as the given section,
2363 then this isn't a subspace. */
2364 if (som_section_data (section)->copy_data->container == section
2365 || (som_section_data (section)->copy_data->container->output_section
2369 /* OK. Must be a subspace. */
2373 /* Return TRUE if the given space contains the given subspace. It
2374 is safe to assume space really is a space, and subspace really
2378 som_is_container (asection *space, asection *subspace)
2380 return (som_section_data (subspace)->copy_data->container == space)
2381 || (som_section_data (subspace)->copy_data->container->output_section
2385 /* Count and return the number of spaces attached to the given BFD. */
2387 static unsigned long
2388 som_count_spaces (bfd *abfd)
2393 for (section = abfd->sections; section != NULL; section = section->next)
2394 count += som_is_space (section);
2399 /* Count the number of subspaces attached to the given BFD. */
2401 static unsigned long
2402 som_count_subspaces (bfd *abfd)
2407 for (section = abfd->sections; section != NULL; section = section->next)
2408 count += som_is_subspace (section);
2413 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2415 We desire symbols to be ordered starting with the symbol with the
2416 highest relocation count down to the symbol with the lowest relocation
2417 count. Doing so compacts the relocation stream. */
2420 compare_syms (const void *arg1, const void *arg2)
2422 asymbol **sym1 = (asymbol **) arg1;
2423 asymbol **sym2 = (asymbol **) arg2;
2424 unsigned int count1, count2;
2426 /* Get relocation count for each symbol. Note that the count
2427 is stored in the udata pointer for section symbols! */
2428 if ((*sym1)->flags & BSF_SECTION_SYM)
2429 count1 = (*sym1)->udata.i;
2431 count1 = som_symbol_data (*sym1)->reloc_count;
2433 if ((*sym2)->flags & BSF_SECTION_SYM)
2434 count2 = (*sym2)->udata.i;
2436 count2 = som_symbol_data (*sym2)->reloc_count;
2438 /* Return the appropriate value. */
2439 if (count1 < count2)
2441 else if (count1 > count2)
2446 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2450 compare_subspaces (const void *arg1, const void *arg2)
2452 asection **subspace1 = (asection **) arg1;
2453 asection **subspace2 = (asection **) arg2;
2455 if ((*subspace1)->target_index < (*subspace2)->target_index)
2457 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2463 /* Perform various work in preparation for emitting the fixup stream. */
2466 som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
2470 asymbol **sorted_syms;
2473 /* Most SOM relocations involving a symbol have a length which is
2474 dependent on the index of the symbol. So symbols which are
2475 used often in relocations should have a small index. */
2477 /* First initialize the counters for each symbol. */
2478 for (i = 0; i < num_syms; i++)
2480 /* Handle a section symbol; these have no pointers back to the
2481 SOM symbol info. So we just use the udata field to hold the
2482 relocation count. */
2483 if (som_symbol_data (syms[i]) == NULL
2484 || syms[i]->flags & BSF_SECTION_SYM)
2486 syms[i]->flags |= BSF_SECTION_SYM;
2487 syms[i]->udata.i = 0;
2490 som_symbol_data (syms[i])->reloc_count = 0;
2493 /* Now that the counters are initialized, make a weighted count
2494 of how often a given symbol is used in a relocation. */
2495 for (section = abfd->sections; section != NULL; section = section->next)
2499 /* Does this section have any relocations? */
2500 if ((int) section->reloc_count <= 0)
2503 /* Walk through each relocation for this section. */
2504 for (j = 1; j < (int) section->reloc_count; j++)
2506 arelent *reloc = section->orelocation[j];
2509 /* A relocation against a symbol in the *ABS* section really
2510 does not have a symbol. Likewise if the symbol isn't associated
2511 with any section. */
2512 if (reloc->sym_ptr_ptr == NULL
2513 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2516 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2517 and R_CODE_ONE_SYMBOL relocations to come first. These
2518 two relocations have single byte versions if the symbol
2519 index is very small. */
2520 if (reloc->howto->type == R_DP_RELATIVE
2521 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2526 /* Handle section symbols by storing the count in the udata
2527 field. It will not be used and the count is very important
2528 for these symbols. */
2529 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2531 (*reloc->sym_ptr_ptr)->udata.i =
2532 (*reloc->sym_ptr_ptr)->udata.i + scale;
2536 /* A normal symbol. Increment the count. */
2537 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2541 /* Sort a copy of the symbol table, rather than the canonical
2542 output symbol table. */
2544 amt *= sizeof (asymbol *);
2545 sorted_syms = bfd_zalloc (abfd, amt);
2546 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2547 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2548 obj_som_sorted_syms (abfd) = sorted_syms;
2550 /* Compute the symbol indexes, they will be needed by the relocation
2552 for (i = 0; i < num_syms; i++)
2554 /* A section symbol. Again, there is no pointer to backend symbol
2555 information, so we reuse the udata field again. */
2556 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2557 sorted_syms[i]->udata.i = i;
2559 som_symbol_data (sorted_syms[i])->index = i;
2564 som_write_fixups (bfd *abfd,
2565 unsigned long current_offset,
2566 unsigned int *total_reloc_sizep)
2569 /* Chunk of memory that we can use as buffer space, then throw
2571 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2573 unsigned int total_reloc_size = 0;
2574 unsigned int subspace_reloc_size = 0;
2575 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2576 asection *section = abfd->sections;
2579 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2582 /* All the fixups for a particular subspace are emitted in a single
2583 stream. All the subspaces for a particular space are emitted
2586 So, to get all the locations correct one must iterate through all the
2587 spaces, for each space iterate through its subspaces and output a
2589 for (i = 0; i < num_spaces; i++)
2591 asection *subsection;
2594 while (!som_is_space (section))
2595 section = section->next;
2597 /* Now iterate through each of its subspaces. */
2598 for (subsection = abfd->sections;
2600 subsection = subsection->next)
2603 unsigned int current_rounding_mode;
2604 #ifndef NO_PCREL_MODES
2605 unsigned int current_call_mode;
2608 /* Find a subspace of this space. */
2609 if (!som_is_subspace (subsection)
2610 || !som_is_container (section, subsection))
2613 /* If this subspace does not have real data, then we are
2614 finished with it. */
2615 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2617 som_section_data (subsection)->subspace_dict->fixup_request_index
2622 /* This subspace has some relocations. Put the relocation stream
2623 index into the subspace record. */
2624 som_section_data (subsection)->subspace_dict->fixup_request_index
2627 /* To make life easier start over with a clean slate for
2628 each subspace. Seek to the start of the relocation stream
2629 for this subspace in preparation for writing out its fixup
2631 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2634 /* Buffer space has already been allocated. Just perform some
2635 initialization here. */
2637 subspace_reloc_size = 0;
2639 som_initialize_reloc_queue (reloc_queue);
2640 current_rounding_mode = R_N_MODE;
2641 #ifndef NO_PCREL_MODES
2642 current_call_mode = R_SHORT_PCREL_MODE;
2645 /* Translate each BFD relocation into one or more SOM
2647 for (j = 0; j < subsection->reloc_count; j++)
2649 arelent *bfd_reloc = subsection->orelocation[j];
2653 /* Get the symbol number. Remember it's stored in a
2654 special place for section symbols. */
2655 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2656 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2658 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2660 /* If there is not enough room for the next couple relocations,
2661 then dump the current buffer contents now. Also reinitialize
2662 the relocation queue.
2664 No single BFD relocation could ever translate into more
2665 than 100 bytes of SOM relocations (20bytes is probably the
2666 upper limit, but leave lots of space for growth). */
2667 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2669 amt = p - tmp_space;
2670 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
2674 som_initialize_reloc_queue (reloc_queue);
2677 /* Emit R_NO_RELOCATION fixups to map any bytes which were
2679 skip = bfd_reloc->address - reloc_offset;
2680 p = som_reloc_skip (abfd, skip, p,
2681 &subspace_reloc_size, reloc_queue);
2683 /* Update reloc_offset for the next iteration.
2685 Many relocations do not consume input bytes. They
2686 are markers, or set state necessary to perform some
2687 later relocation. */
2688 switch (bfd_reloc->howto->type)
2708 #ifndef NO_PCREL_MODES
2709 case R_SHORT_PCREL_MODE:
2710 case R_LONG_PCREL_MODE:
2712 reloc_offset = bfd_reloc->address;
2716 reloc_offset = bfd_reloc->address + 4;
2720 /* Now the actual relocation we care about. */
2721 switch (bfd_reloc->howto->type)
2725 p = som_reloc_call (abfd, p, &subspace_reloc_size,
2726 bfd_reloc, sym_num, reloc_queue);
2729 case R_CODE_ONE_SYMBOL:
2731 /* Account for any addend. */
2732 if (bfd_reloc->addend)
2733 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2734 &subspace_reloc_size, reloc_queue);
2738 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
2739 subspace_reloc_size += 1;
2742 else if (sym_num < 0x100)
2744 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
2745 bfd_put_8 (abfd, sym_num, p + 1);
2746 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2749 else if (sym_num < 0x10000000)
2751 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
2752 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2753 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2754 p = try_prev_fixup (abfd, &subspace_reloc_size,
2761 case R_DATA_ONE_SYMBOL:
2765 /* Account for any addend using R_DATA_OVERRIDE. */
2766 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
2767 && bfd_reloc->addend)
2768 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2769 &subspace_reloc_size, reloc_queue);
2771 if (sym_num < 0x100)
2773 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2774 bfd_put_8 (abfd, sym_num, p + 1);
2775 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2778 else if (sym_num < 0x10000000)
2780 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2781 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2782 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2783 p = try_prev_fixup (abfd, &subspace_reloc_size,
2793 arelent *tmp_reloc = NULL;
2794 bfd_put_8 (abfd, R_ENTRY, p);
2796 /* R_ENTRY relocations have 64 bits of associated
2797 data. Unfortunately the addend field of a bfd
2798 relocation is only 32 bits. So, we split up
2799 the 64bit unwind information and store part in
2800 the R_ENTRY relocation, and the rest in the R_EXIT
2802 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
2804 /* Find the next R_EXIT relocation. */
2805 for (tmp = j; tmp < subsection->reloc_count; tmp++)
2807 tmp_reloc = subsection->orelocation[tmp];
2808 if (tmp_reloc->howto->type == R_EXIT)
2812 if (tmp == subsection->reloc_count)
2815 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
2816 p = try_prev_fixup (abfd, &subspace_reloc_size,
2825 /* If this relocation requests the current rounding
2826 mode, then it is redundant. */
2827 if (bfd_reloc->howto->type != current_rounding_mode)
2829 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2830 subspace_reloc_size += 1;
2832 current_rounding_mode = bfd_reloc->howto->type;
2836 #ifndef NO_PCREL_MODES
2837 case R_LONG_PCREL_MODE:
2838 case R_SHORT_PCREL_MODE:
2839 if (bfd_reloc->howto->type != current_call_mode)
2841 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2842 subspace_reloc_size += 1;
2844 current_call_mode = bfd_reloc->howto->type;
2859 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2860 subspace_reloc_size += 1;
2865 /* The end of an exception handling region. The reloc's
2866 addend contains the offset of the exception handling
2868 if (bfd_reloc->addend == 0)
2869 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2870 else if (bfd_reloc->addend < 1024)
2872 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2873 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
2874 p = try_prev_fixup (abfd, &subspace_reloc_size,
2879 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
2880 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
2881 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
2882 p = try_prev_fixup (abfd, &subspace_reloc_size,
2888 /* The only time we generate R_COMP1, R_COMP2 and
2889 R_CODE_EXPR relocs is for the difference of two
2890 symbols. Hence we can cheat here. */
2891 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2892 bfd_put_8 (abfd, 0x44, p + 1);
2893 p = try_prev_fixup (abfd, &subspace_reloc_size,
2898 /* The only time we generate R_COMP1, R_COMP2 and
2899 R_CODE_EXPR relocs is for the difference of two
2900 symbols. Hence we can cheat here. */
2901 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2902 bfd_put_8 (abfd, 0x80, p + 1);
2903 bfd_put_8 (abfd, sym_num >> 16, p + 2);
2904 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
2905 p = try_prev_fixup (abfd, &subspace_reloc_size,
2911 /* The only time we generate R_COMP1, R_COMP2 and
2912 R_CODE_EXPR relocs is for the difference of two
2913 symbols. Hence we can cheat here. */
2914 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2915 subspace_reloc_size += 1;
2919 /* Put a "R_RESERVED" relocation in the stream if
2920 we hit something we do not understand. The linker
2921 will complain loudly if this ever happens. */
2923 bfd_put_8 (abfd, 0xff, p);
2924 subspace_reloc_size += 1;
2930 /* Last BFD relocation for a subspace has been processed.
2931 Map the rest of the subspace with R_NO_RELOCATION fixups. */
2932 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
2933 p, &subspace_reloc_size, reloc_queue);
2935 /* Scribble out the relocations. */
2936 amt = p - tmp_space;
2937 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
2941 total_reloc_size += subspace_reloc_size;
2942 som_section_data (subsection)->subspace_dict->fixup_request_quantity
2943 = subspace_reloc_size;
2945 section = section->next;
2947 *total_reloc_sizep = total_reloc_size;
2951 /* Write out the space/subspace string table. */
2954 som_write_space_strings (bfd *abfd,
2955 unsigned long current_offset,
2956 unsigned int *string_sizep)
2958 /* Chunk of memory that we can use as buffer space, then throw
2960 size_t tmp_space_size = SOM_TMP_BUFSIZE;
2961 char *tmp_space = alloca (tmp_space_size);
2962 char *p = tmp_space;
2963 unsigned int strings_size = 0;
2967 /* Seek to the start of the space strings in preparation for writing
2969 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
2972 /* Walk through all the spaces and subspaces (order is not important)
2973 building up and writing string table entries for their names. */
2974 for (section = abfd->sections; section != NULL; section = section->next)
2978 /* Only work with space/subspaces; avoid any other sections
2979 which might have been made (.text for example). */
2980 if (!som_is_space (section) && !som_is_subspace (section))
2983 /* Get the length of the space/subspace name. */
2984 length = strlen (section->name);
2986 /* If there is not enough room for the next entry, then dump the
2987 current buffer contents now and maybe allocate a larger
2988 buffer. Each entry will take 4 bytes to hold the string
2989 length + the string itself + null terminator. */
2990 if (p - tmp_space + 5 + length > tmp_space_size)
2992 /* Flush buffer before refilling or reallocating. */
2993 amt = p - tmp_space;
2994 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
2997 /* Reallocate if now empty buffer still too small. */
2998 if (5 + length > tmp_space_size)
3000 /* Ensure a minimum growth factor to avoid O(n**2) space
3001 consumption for n strings. The optimal minimum
3002 factor seems to be 2, as no other value can guarantee
3003 wasting less than 50% space. (Note that we cannot
3004 deallocate space allocated by `alloca' without
3005 returning from this function.) The same technique is
3006 used a few more times below when a buffer is
3008 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3009 tmp_space = alloca (tmp_space_size);
3012 /* Reset to beginning of the (possibly new) buffer space. */
3016 /* First element in a string table entry is the length of the
3017 string. Alignment issues are already handled. */
3018 bfd_put_32 (abfd, (bfd_vma) length, p);
3022 /* Record the index in the space/subspace records. */
3023 if (som_is_space (section))
3024 som_section_data (section)->space_dict->name.n_strx = strings_size;
3026 som_section_data (section)->subspace_dict->name.n_strx = strings_size;
3028 /* Next comes the string itself + a null terminator. */
3029 strcpy (p, section->name);
3031 strings_size += length + 1;
3033 /* Always align up to the next word boundary. */
3034 while (strings_size % 4)
3036 bfd_put_8 (abfd, 0, p);
3042 /* Done with the space/subspace strings. Write out any information
3043 contained in a partial block. */
3044 amt = p - tmp_space;
3045 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3047 *string_sizep = strings_size;
3051 /* Write out the symbol string table. */
3054 som_write_symbol_strings (bfd *abfd,
3055 unsigned long current_offset,
3057 unsigned int num_syms,
3058 unsigned int *string_sizep,
3059 COMPUNIT *compilation_unit)
3063 /* Chunk of memory that we can use as buffer space, then throw
3065 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3066 char *tmp_space = alloca (tmp_space_size);
3067 char *p = tmp_space;
3069 unsigned int strings_size = 0;
3073 /* This gets a bit gruesome because of the compilation unit. The
3074 strings within the compilation unit are part of the symbol
3075 strings, but don't have symbol_dictionary entries. So, manually
3076 write them and update the compilation unit header. On input, the
3077 compilation unit header contains local copies of the strings.
3079 if (compilation_unit)
3081 comp[0] = compilation_unit->name.n_name;
3082 comp[1] = compilation_unit->language_name.n_name;
3083 comp[2] = compilation_unit->product_id.n_name;
3084 comp[3] = compilation_unit->version_id.n_name;
3087 /* Seek to the start of the space strings in preparation for writing
3089 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3092 if (compilation_unit)
3094 for (i = 0; i < 4; i++)
3096 size_t length = strlen (comp[i]);
3098 /* If there is not enough room for the next entry, then dump
3099 the current buffer contents now and maybe allocate a
3101 if (p - tmp_space + 5 + length > tmp_space_size)
3103 /* Flush buffer before refilling or reallocating. */
3104 amt = p - tmp_space;
3105 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3108 /* Reallocate if now empty buffer still too small. */
3109 if (5 + length > tmp_space_size)
3111 /* See alloca above for discussion of new size. */
3112 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3113 tmp_space = alloca (tmp_space_size);
3116 /* Reset to beginning of the (possibly new) buffer
3121 /* First element in a string table entry is the length of
3122 the string. This must always be 4 byte aligned. This is
3123 also an appropriate time to fill in the string index
3124 field in the symbol table entry. */
3125 bfd_put_32 (abfd, (bfd_vma) length, p);
3129 /* Next comes the string itself + a null terminator. */
3130 strcpy (p, comp[i]);
3135 obj_som_compilation_unit (abfd)->name.n_strx = strings_size;
3138 obj_som_compilation_unit (abfd)->language_name.n_strx =
3142 obj_som_compilation_unit (abfd)->product_id.n_strx =
3146 obj_som_compilation_unit (abfd)->version_id.n_strx =
3152 strings_size += length + 1;
3154 /* Always align up to the next word boundary. */
3155 while (strings_size % 4)
3157 bfd_put_8 (abfd, 0, p);
3164 for (i = 0; i < num_syms; i++)
3166 size_t length = strlen (syms[i]->name);
3168 /* If there is not enough room for the next entry, then dump the
3169 current buffer contents now and maybe allocate a larger buffer. */
3170 if (p - tmp_space + 5 + length > tmp_space_size)
3172 /* Flush buffer before refilling or reallocating. */
3173 amt = p - tmp_space;
3174 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3177 /* Reallocate if now empty buffer still too small. */
3178 if (5 + length > tmp_space_size)
3180 /* See alloca above for discussion of new size. */
3181 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3182 tmp_space = alloca (tmp_space_size);
3185 /* Reset to beginning of the (possibly new) buffer space. */
3189 /* First element in a string table entry is the length of the
3190 string. This must always be 4 byte aligned. This is also
3191 an appropriate time to fill in the string index field in the
3192 symbol table entry. */
3193 bfd_put_32 (abfd, (bfd_vma) length, p);
3197 /* Next comes the string itself + a null terminator. */
3198 strcpy (p, syms[i]->name);
3200 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3202 strings_size += length + 1;
3204 /* Always align up to the next word boundary. */
3205 while (strings_size % 4)
3207 bfd_put_8 (abfd, 0, p);
3213 /* Scribble out any partial block. */
3214 amt = p - tmp_space;
3215 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3218 *string_sizep = strings_size;
3222 /* Compute variable information to be placed in the SOM headers,
3223 space/subspace dictionaries, relocation streams, etc. Begin
3224 writing parts of the object file. */
3227 som_begin_writing (bfd *abfd)
3229 unsigned long current_offset = 0;
3230 unsigned int strings_size = 0;
3231 unsigned long num_spaces, num_subspaces, i;
3233 unsigned int total_subspaces = 0;
3234 struct som_exec_auxhdr *exec_header = NULL;
3236 /* The file header will always be first in an object file,
3237 everything else can be in random locations. To keep things
3238 "simple" BFD will lay out the object file in the manner suggested
3239 by the PRO ABI for PA-RISC Systems. */
3241 /* Before any output can really begin offsets for all the major
3242 portions of the object file must be computed. So, starting
3243 with the initial file header compute (and sometimes write)
3244 each portion of the object file. */
3246 /* Make room for the file header, it's contents are not complete
3247 yet, so it can not be written at this time. */
3248 current_offset += sizeof (struct header);
3250 /* Any auxiliary headers will follow the file header. Right now
3251 we support only the copyright and version headers. */
3252 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3253 obj_som_file_hdr (abfd)->aux_header_size = 0;
3254 if (abfd->flags & (EXEC_P | DYNAMIC))
3256 /* Parts of the exec header will be filled in later, so
3257 delay writing the header itself. Fill in the defaults,
3258 and write it later. */
3259 current_offset += sizeof (struct som_exec_auxhdr);
3260 obj_som_file_hdr (abfd)->aux_header_size
3261 += sizeof (struct som_exec_auxhdr);
3262 exec_header = obj_som_exec_hdr (abfd);
3263 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3264 exec_header->som_auxhdr.length = 40;
3266 if (obj_som_version_hdr (abfd) != NULL)
3270 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3273 /* Write the aux_id structure and the string length. */
3274 len = sizeof (struct aux_id) + sizeof (unsigned int);
3275 obj_som_file_hdr (abfd)->aux_header_size += len;
3276 current_offset += len;
3277 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd), len, abfd) != len)
3280 /* Write the version string. */
3281 len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
3282 obj_som_file_hdr (abfd)->aux_header_size += len;
3283 current_offset += len;
3284 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->user_string, len, abfd)
3289 if (obj_som_copyright_hdr (abfd) != NULL)
3293 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3296 /* Write the aux_id structure and the string length. */
3297 len = sizeof (struct aux_id) + sizeof (unsigned int);
3298 obj_som_file_hdr (abfd)->aux_header_size += len;
3299 current_offset += len;
3300 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd), len, abfd) != len)
3303 /* Write the copyright string. */
3304 len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
3305 obj_som_file_hdr (abfd)->aux_header_size += len;
3306 current_offset += len;
3307 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
3312 /* Next comes the initialization pointers; we have no initialization
3313 pointers, so current offset does not change. */
3314 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3315 obj_som_file_hdr (abfd)->init_array_total = 0;
3317 /* Next are the space records. These are fixed length records.
3319 Count the number of spaces to determine how much room is needed
3320 in the object file for the space records.
3322 The names of the spaces are stored in a separate string table,
3323 and the index for each space into the string table is computed
3324 below. Therefore, it is not possible to write the space headers
3326 num_spaces = som_count_spaces (abfd);
3327 obj_som_file_hdr (abfd)->space_location = current_offset;
3328 obj_som_file_hdr (abfd)->space_total = num_spaces;
3329 current_offset += num_spaces * sizeof (struct space_dictionary_record);
3331 /* Next are the subspace records. These are fixed length records.
3333 Count the number of subspaes to determine how much room is needed
3334 in the object file for the subspace records.
3336 A variety if fields in the subspace record are still unknown at
3337 this time (index into string table, fixup stream location/size, etc). */
3338 num_subspaces = som_count_subspaces (abfd);
3339 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3340 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3342 += num_subspaces * sizeof (struct som_subspace_dictionary_record);
3344 /* Next is the string table for the space/subspace names. We will
3345 build and write the string table on the fly. At the same time
3346 we will fill in the space/subspace name index fields. */
3348 /* The string table needs to be aligned on a word boundary. */
3349 if (current_offset % 4)
3350 current_offset += (4 - (current_offset % 4));
3352 /* Mark the offset of the space/subspace string table in the
3354 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3356 /* Scribble out the space strings. */
3357 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3360 /* Record total string table size in the header and update the
3362 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3363 current_offset += strings_size;
3365 /* Next is the compilation unit. */
3366 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3367 obj_som_file_hdr (abfd)->compiler_total = 0;
3368 if (obj_som_compilation_unit (abfd))
3370 obj_som_file_hdr (abfd)->compiler_total = 1;
3371 current_offset += COMPUNITSZ;
3374 /* Now compute the file positions for the loadable subspaces, taking
3375 care to make sure everything stays properly aligned. */
3377 section = abfd->sections;
3378 for (i = 0; i < num_spaces; i++)
3380 asection *subsection;
3382 unsigned int subspace_offset = 0;
3385 while (!som_is_space (section))
3386 section = section->next;
3389 /* Now look for all its subspaces. */
3390 for (subsection = abfd->sections;
3392 subsection = subsection->next)
3395 if (!som_is_subspace (subsection)
3396 || !som_is_container (section, subsection)
3397 || (subsection->flags & SEC_ALLOC) == 0)
3400 /* If this is the first subspace in the space, and we are
3401 building an executable, then take care to make sure all
3402 the alignments are correct and update the exec header. */
3404 && (abfd->flags & (EXEC_P | DYNAMIC)))
3406 /* Demand paged executables have each space aligned to a
3407 page boundary. Sharable executables (write-protected
3408 text) have just the private (aka data & bss) space aligned
3409 to a page boundary. Ugh. Not true for HPUX.
3411 The HPUX kernel requires the text to always be page aligned
3412 within the file regardless of the executable's type. */
3413 if (abfd->flags & (D_PAGED | DYNAMIC)
3414 || (subsection->flags & SEC_CODE)
3415 || ((abfd->flags & WP_TEXT)
3416 && (subsection->flags & SEC_DATA)))
3417 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3419 /* Update the exec header. */
3420 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3422 exec_header->exec_tmem = section->vma;
3423 exec_header->exec_tfile = current_offset;
3425 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3427 exec_header->exec_dmem = section->vma;
3428 exec_header->exec_dfile = current_offset;
3431 /* Keep track of exactly where we are within a particular
3432 space. This is necessary as the braindamaged HPUX
3433 loader will create holes between subspaces *and*
3434 subspace alignments are *NOT* preserved. What a crock. */
3435 subspace_offset = subsection->vma;
3437 /* Only do this for the first subspace within each space. */
3440 else if (abfd->flags & (EXEC_P | DYNAMIC))
3442 /* The braindamaged HPUX loader may have created a hole
3443 between two subspaces. It is *not* sufficient to use
3444 the alignment specifications within the subspaces to
3445 account for these holes -- I've run into at least one
3446 case where the loader left one code subspace unaligned
3447 in a final executable.
3449 To combat this we keep a current offset within each space,
3450 and use the subspace vma fields to detect and preserve
3451 holes. What a crock!
3453 ps. This is not necessary for unloadable space/subspaces. */
3454 current_offset += subsection->vma - subspace_offset;
3455 if (subsection->flags & SEC_CODE)
3456 exec_header->exec_tsize += subsection->vma - subspace_offset;
3458 exec_header->exec_dsize += subsection->vma - subspace_offset;
3459 subspace_offset += subsection->vma - subspace_offset;
3462 subsection->target_index = total_subspaces++;
3463 /* This is real data to be loaded from the file. */
3464 if (subsection->flags & SEC_LOAD)
3466 /* Update the size of the code & data. */
3467 if (abfd->flags & (EXEC_P | DYNAMIC)
3468 && subsection->flags & SEC_CODE)
3469 exec_header->exec_tsize += subsection->size;
3470 else if (abfd->flags & (EXEC_P | DYNAMIC)
3471 && subsection->flags & SEC_DATA)
3472 exec_header->exec_dsize += subsection->size;
3473 som_section_data (subsection)->subspace_dict->file_loc_init_value
3475 subsection->filepos = current_offset;
3476 current_offset += subsection->size;
3477 subspace_offset += subsection->size;
3479 /* Looks like uninitialized data. */
3482 /* Update the size of the bss section. */
3483 if (abfd->flags & (EXEC_P | DYNAMIC))
3484 exec_header->exec_bsize += subsection->size;
3486 som_section_data (subsection)->subspace_dict->file_loc_init_value
3488 som_section_data (subsection)->subspace_dict->
3489 initialization_length = 0;
3492 /* Goto the next section. */
3493 section = section->next;
3496 /* Finally compute the file positions for unloadable subspaces.
3497 If building an executable, start the unloadable stuff on its
3500 if (abfd->flags & (EXEC_P | DYNAMIC))
3501 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3503 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3504 section = abfd->sections;
3505 for (i = 0; i < num_spaces; i++)
3507 asection *subsection;
3510 while (!som_is_space (section))
3511 section = section->next;
3513 if (abfd->flags & (EXEC_P | DYNAMIC))
3514 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3516 /* Now look for all its subspaces. */
3517 for (subsection = abfd->sections;
3519 subsection = subsection->next)
3522 if (!som_is_subspace (subsection)
3523 || !som_is_container (section, subsection)
3524 || (subsection->flags & SEC_ALLOC) != 0)
3527 subsection->target_index = total_subspaces++;
3528 /* This is real data to be loaded from the file. */
3529 if ((subsection->flags & SEC_LOAD) == 0)
3531 som_section_data (subsection)->subspace_dict->file_loc_init_value
3533 subsection->filepos = current_offset;
3534 current_offset += subsection->size;
3536 /* Looks like uninitialized data. */
3539 som_section_data (subsection)->subspace_dict->file_loc_init_value
3541 som_section_data (subsection)->subspace_dict->
3542 initialization_length = subsection->size;
3545 /* Goto the next section. */
3546 section = section->next;
3549 /* If building an executable, then make sure to seek to and write
3550 one byte at the end of the file to make sure any necessary
3551 zeros are filled in. Ugh. */
3552 if (abfd->flags & (EXEC_P | DYNAMIC))
3553 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3554 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3556 if (bfd_bwrite ((void *) "", (bfd_size_type) 1, abfd) != 1)
3559 obj_som_file_hdr (abfd)->unloadable_sp_size
3560 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3562 /* Loader fixups are not supported in any way shape or form. */
3563 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3564 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3566 /* Done. Store the total size of the SOM so far. */
3567 obj_som_file_hdr (abfd)->som_length = current_offset;
3572 /* Finally, scribble out the various headers to the disk. */
3575 som_finish_writing (bfd *abfd)
3577 int num_spaces = som_count_spaces (abfd);
3578 asymbol **syms = bfd_get_outsymbols (abfd);
3580 int subspace_index = 0;
3583 unsigned long current_offset;
3584 unsigned int strings_size, total_reloc_size;
3587 /* We must set up the version identifier here as objcopy/strip copy
3588 private BFD data too late for us to handle this in som_begin_writing. */
3589 if (obj_som_exec_data (abfd)
3590 && obj_som_exec_data (abfd)->version_id)
3591 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3593 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3595 /* Next is the symbol table. These are fixed length records.
3597 Count the number of symbols to determine how much room is needed
3598 in the object file for the symbol table.
3600 The names of the symbols are stored in a separate string table,
3601 and the index for each symbol name into the string table is computed
3602 below. Therefore, it is not possible to write the symbol table
3605 These used to be output before the subspace contents, but they
3606 were moved here to work around a stupid bug in the hpux linker
3607 (fixed in hpux10). */
3608 current_offset = obj_som_file_hdr (abfd)->som_length;
3610 /* Make sure we're on a word boundary. */
3611 if (current_offset % 4)
3612 current_offset += (4 - (current_offset % 4));
3614 num_syms = bfd_get_symcount (abfd);
3615 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3616 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3617 current_offset += num_syms * sizeof (struct symbol_dictionary_record);
3619 /* Next are the symbol strings.
3620 Align them to a word boundary. */
3621 if (current_offset % 4)
3622 current_offset += (4 - (current_offset % 4));
3623 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3625 /* Scribble out the symbol strings. */
3626 if (! som_write_symbol_strings (abfd, current_offset, syms,
3627 num_syms, &strings_size,
3628 obj_som_compilation_unit (abfd)))
3631 /* Record total string table size in header and update the
3633 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3634 current_offset += strings_size;
3636 /* Do prep work before handling fixups. */
3637 som_prep_for_fixups (abfd,
3638 bfd_get_outsymbols (abfd),
3639 bfd_get_symcount (abfd));
3641 /* At the end of the file is the fixup stream which starts on a
3643 if (current_offset % 4)
3644 current_offset += (4 - (current_offset % 4));
3645 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
3647 /* Write the fixups and update fields in subspace headers which
3648 relate to the fixup stream. */
3649 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
3652 /* Record the total size of the fixup stream in the file header. */
3653 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
3655 /* Done. Store the total size of the SOM. */
3656 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
3658 /* Now that the symbol table information is complete, build and
3659 write the symbol table. */
3660 if (! som_build_and_write_symbol_table (abfd))
3663 /* Subspaces are written first so that we can set up information
3664 about them in their containing spaces as the subspace is written. */
3666 /* Seek to the start of the subspace dictionary records. */
3667 location = obj_som_file_hdr (abfd)->subspace_location;
3668 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3671 section = abfd->sections;
3672 /* Now for each loadable space write out records for its subspaces. */
3673 for (i = 0; i < num_spaces; i++)
3675 asection *subsection;
3678 while (!som_is_space (section))
3679 section = section->next;
3681 /* Now look for all its subspaces. */
3682 for (subsection = abfd->sections;
3684 subsection = subsection->next)
3687 /* Skip any section which does not correspond to a space
3688 or subspace. Or does not have SEC_ALLOC set (and therefore
3689 has no real bits on the disk). */
3690 if (!som_is_subspace (subsection)
3691 || !som_is_container (section, subsection)
3692 || (subsection->flags & SEC_ALLOC) == 0)
3695 /* If this is the first subspace for this space, then save
3696 the index of the subspace in its containing space. Also
3697 set "is_loadable" in the containing space. */
3699 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3701 som_section_data (section)->space_dict->is_loadable = 1;
3702 som_section_data (section)->space_dict->subspace_index
3706 /* Increment the number of subspaces seen and the number of
3707 subspaces contained within the current space. */
3709 som_section_data (section)->space_dict->subspace_quantity++;
3711 /* Mark the index of the current space within the subspace's
3712 dictionary record. */
3713 som_section_data (subsection)->subspace_dict->space_index = i;
3715 /* Dump the current subspace header. */
3716 amt = sizeof (struct som_subspace_dictionary_record);
3717 if (bfd_bwrite ((void *) som_section_data (subsection)->subspace_dict,
3721 /* Goto the next section. */
3722 section = section->next;
3725 /* Now repeat the process for unloadable subspaces. */
3726 section = abfd->sections;
3727 /* Now for each space write out records for its subspaces. */
3728 for (i = 0; i < num_spaces; i++)
3730 asection *subsection;
3733 while (!som_is_space (section))
3734 section = section->next;
3736 /* Now look for all its subspaces. */
3737 for (subsection = abfd->sections;
3739 subsection = subsection->next)
3742 /* Skip any section which does not correspond to a space or
3743 subspace, or which SEC_ALLOC set (and therefore handled
3744 in the loadable spaces/subspaces code above). */
3746 if (!som_is_subspace (subsection)
3747 || !som_is_container (section, subsection)
3748 || (subsection->flags & SEC_ALLOC) != 0)
3751 /* If this is the first subspace for this space, then save
3752 the index of the subspace in its containing space. Clear
3755 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3757 som_section_data (section)->space_dict->is_loadable = 0;
3758 som_section_data (section)->space_dict->subspace_index
3762 /* Increment the number of subspaces seen and the number of
3763 subspaces contained within the current space. */
3764 som_section_data (section)->space_dict->subspace_quantity++;
3767 /* Mark the index of the current space within the subspace's
3768 dictionary record. */
3769 som_section_data (subsection)->subspace_dict->space_index = i;
3771 /* Dump this subspace header. */
3772 amt = sizeof (struct som_subspace_dictionary_record);
3773 if (bfd_bwrite ((void *) som_section_data (subsection)->subspace_dict,
3777 /* Goto the next section. */
3778 section = section->next;
3781 /* All the subspace dictionary records are written, and all the
3782 fields are set up in the space dictionary records.
3784 Seek to the right location and start writing the space
3785 dictionary records. */
3786 location = obj_som_file_hdr (abfd)->space_location;
3787 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3790 section = abfd->sections;
3791 for (i = 0; i < num_spaces; i++)
3794 while (!som_is_space (section))
3795 section = section->next;
3797 /* Dump its header. */
3798 amt = sizeof (struct space_dictionary_record);
3799 if (bfd_bwrite ((void *) som_section_data (section)->space_dict,
3803 /* Goto the next section. */
3804 section = section->next;
3807 /* Write the compilation unit record if there is one. */
3808 if (obj_som_compilation_unit (abfd))
3810 location = obj_som_file_hdr (abfd)->compiler_location;
3811 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3815 if (bfd_bwrite ((void *) obj_som_compilation_unit (abfd), amt, abfd) != amt)
3819 /* Setting of the system_id has to happen very late now that copying of
3820 BFD private data happens *after* section contents are set. */
3821 if (abfd->flags & (EXEC_P | DYNAMIC))
3822 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
3823 else if (bfd_get_mach (abfd) == pa20)
3824 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
3825 else if (bfd_get_mach (abfd) == pa11)
3826 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
3828 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
3830 /* Compute the checksum for the file header just before writing
3831 the header to disk. */
3832 obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
3834 /* Only thing left to do is write out the file header. It is always
3835 at location zero. Seek there and write it. */
3836 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3838 amt = sizeof (struct header);
3839 if (bfd_bwrite ((void *) obj_som_file_hdr (abfd), amt, abfd) != amt)
3842 /* Now write the exec header. */
3843 if (abfd->flags & (EXEC_P | DYNAMIC))
3845 long tmp, som_length;
3846 struct som_exec_auxhdr *exec_header;
3848 exec_header = obj_som_exec_hdr (abfd);
3849 exec_header->exec_entry = bfd_get_start_address (abfd);
3850 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
3852 /* Oh joys. Ram some of the BSS data into the DATA section
3853 to be compatible with how the hp linker makes objects
3854 (saves memory space). */
3855 tmp = exec_header->exec_dsize;
3856 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
3857 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
3858 if (exec_header->exec_bsize < 0)
3859 exec_header->exec_bsize = 0;
3860 exec_header->exec_dsize = tmp;
3862 /* Now perform some sanity checks. The idea is to catch bogons now and
3863 inform the user, instead of silently generating a bogus file. */
3864 som_length = obj_som_file_hdr (abfd)->som_length;
3865 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
3866 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
3868 bfd_set_error (bfd_error_bad_value);
3872 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
3877 if (bfd_bwrite ((void *) exec_header, amt, abfd) != amt)
3883 /* Compute and return the checksum for a SOM file header. */
3885 static unsigned long
3886 som_compute_checksum (bfd *abfd)
3888 unsigned long checksum, count, i;
3889 unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
3892 count = sizeof (struct header) / sizeof (unsigned long);
3893 for (i = 0; i < count; i++)
3894 checksum ^= *(buffer + i);
3900 som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
3902 struct som_misc_symbol_info *info)
3905 memset (info, 0, sizeof (struct som_misc_symbol_info));
3907 /* The HP SOM linker requires detailed type information about
3908 all symbols (including undefined symbols!). Unfortunately,
3909 the type specified in an import/export statement does not
3910 always match what the linker wants. Severe braindamage. */
3912 /* Section symbols will not have a SOM symbol type assigned to
3913 them yet. Assign all section symbols type ST_DATA. */
3914 if (sym->flags & BSF_SECTION_SYM)
3915 info->symbol_type = ST_DATA;
3918 /* For BFD style common, the linker will choke unless we set the
3919 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
3920 if (bfd_is_com_section (sym->section))
3922 info->symbol_type = ST_STORAGE;
3923 info->symbol_scope = SS_UNSAT;
3926 /* It is possible to have a symbol without an associated
3927 type. This happens if the user imported the symbol
3928 without a type and the symbol was never defined
3929 locally. If BSF_FUNCTION is set for this symbol, then
3930 assign it type ST_CODE (the HP linker requires undefined
3931 external functions to have type ST_CODE rather than ST_ENTRY). */
3932 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
3933 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
3934 && bfd_is_und_section (sym->section)
3935 && sym->flags & BSF_FUNCTION)
3936 info->symbol_type = ST_CODE;
3938 /* Handle function symbols which were defined in this file.
3939 They should have type ST_ENTRY. Also retrieve the argument
3940 relocation bits from the SOM backend information. */
3941 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
3942 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
3943 && (sym->flags & BSF_FUNCTION))
3944 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
3945 && (sym->flags & BSF_FUNCTION)))
3947 info->symbol_type = ST_ENTRY;
3948 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
3949 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
3952 /* For unknown symbols set the symbol's type based on the symbol's
3953 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
3954 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
3956 if (sym->section->flags & SEC_CODE)
3957 info->symbol_type = ST_CODE;
3959 info->symbol_type = ST_DATA;
3962 /* From now on it's a very simple mapping. */
3963 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
3964 info->symbol_type = ST_ABSOLUTE;
3965 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
3966 info->symbol_type = ST_CODE;
3967 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
3968 info->symbol_type = ST_DATA;
3969 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
3970 info->symbol_type = ST_MILLICODE;
3971 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
3972 info->symbol_type = ST_PLABEL;
3973 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
3974 info->symbol_type = ST_PRI_PROG;
3975 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
3976 info->symbol_type = ST_SEC_PROG;
3979 /* Now handle the symbol's scope. Exported data which is not
3980 in the common section has scope SS_UNIVERSAL. Note scope
3981 of common symbols was handled earlier! */
3982 if (bfd_is_com_section (sym->section))
3984 else if (bfd_is_und_section (sym->section))
3985 info->symbol_scope = SS_UNSAT;
3986 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
3987 info->symbol_scope = SS_UNIVERSAL;
3988 /* Anything else which is not in the common section has scope
3991 info->symbol_scope = SS_LOCAL;
3993 /* Now set the symbol_info field. It has no real meaning
3994 for undefined or common symbols, but the HP linker will
3995 choke if it's not set to some "reasonable" value. We
3996 use zero as a reasonable value. */
3997 if (bfd_is_com_section (sym->section)
3998 || bfd_is_und_section (sym->section)
3999 || bfd_is_abs_section (sym->section))
4000 info->symbol_info = 0;
4001 /* For all other symbols, the symbol_info field contains the
4002 subspace index of the space this symbol is contained in. */
4004 info->symbol_info = sym->section->target_index;
4006 /* Set the symbol's value. */
4007 info->symbol_value = sym->value + sym->section->vma;
4009 /* The secondary_def field is for "weak" symbols. */
4010 if (sym->flags & BSF_WEAK)
4011 info->secondary_def = TRUE;
4013 info->secondary_def = FALSE;
4015 /* The is_comdat, is_common and dup_common fields provide various
4018 For data symbols, setting IS_COMMON provides Fortran style common
4019 (duplicate definitions and overlapped initialization). Setting both
4020 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4021 definitions as long as they are all the same length). In a shared
4022 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4023 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4024 symbol except in that it loses its IS_COMDAT flag in a shared link.
4026 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4027 DUP_COMMON code symbols are not exported from shared libraries.
4028 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4030 We take a simplified approach to setting the is_comdat, is_common
4031 and dup_common flags in symbols based on the flag settings of their
4032 subspace. This avoids having to add directives like `.comdat' but
4033 the linker behavior is probably undefined if there is more than one
4034 universal symbol (comdat key sysmbol) in a subspace.
4036 The behavior of these flags is not well documentmented, so there
4037 may be bugs and some surprising interactions with other flags. */
4038 if (som_section_data (sym->section)
4039 && som_section_data (sym->section)->subspace_dict
4040 && info->symbol_scope == SS_UNIVERSAL
4041 && (info->symbol_type == ST_ENTRY
4042 || info->symbol_type == ST_CODE
4043 || info->symbol_type == ST_DATA))
4046 = som_section_data (sym->section)->subspace_dict->is_comdat;
4048 = som_section_data (sym->section)->subspace_dict->is_common;
4050 = som_section_data (sym->section)->subspace_dict->dup_common;
4054 /* Build and write, in one big chunk, the entire symbol table for
4058 som_build_and_write_symbol_table (bfd *abfd)
4060 unsigned int num_syms = bfd_get_symcount (abfd);
4061 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4062 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4063 struct symbol_dictionary_record *som_symtab = NULL;
4065 bfd_size_type symtab_size;
4067 /* Compute total symbol table size and allocate a chunk of memory
4068 to hold the symbol table as we build it. */
4069 symtab_size = num_syms;
4070 symtab_size *= sizeof (struct symbol_dictionary_record);
4071 som_symtab = bfd_zmalloc (symtab_size);
4072 if (som_symtab == NULL && symtab_size != 0)
4075 /* Walk over each symbol. */
4076 for (i = 0; i < num_syms; i++)
4078 struct som_misc_symbol_info info;
4080 /* This is really an index into the symbol strings table.
4081 By the time we get here, the index has already been
4082 computed and stored into the name field in the BFD symbol. */
4083 som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset;
4085 /* Derive SOM information from the BFD symbol. */
4086 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4089 som_symtab[i].symbol_type = info.symbol_type;
4090 som_symtab[i].symbol_scope = info.symbol_scope;
4091 som_symtab[i].arg_reloc = info.arg_reloc;
4092 som_symtab[i].symbol_info = info.symbol_info;
4093 som_symtab[i].xleast = 3;
4094 som_symtab[i].symbol_value = info.symbol_value | info.priv_level;
4095 som_symtab[i].secondary_def = info.secondary_def;
4096 som_symtab[i].is_comdat = info.is_comdat;
4097 som_symtab[i].is_common = info.is_common;
4098 som_symtab[i].dup_common = info.dup_common;
4101 /* Everything is ready, seek to the right location and
4102 scribble out the symbol table. */
4103 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4106 if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
4109 if (som_symtab != NULL)
4113 if (som_symtab != NULL)
4118 /* Write an object in SOM format. */
4121 som_write_object_contents (bfd *abfd)
4123 if (! abfd->output_has_begun)
4125 /* Set up fixed parts of the file, space, and subspace headers.
4126 Notify the world that output has begun. */
4127 som_prep_headers (abfd);
4128 abfd->output_has_begun = TRUE;
4129 /* Start writing the object file. This include all the string
4130 tables, fixup streams, and other portions of the object file. */
4131 som_begin_writing (abfd);
4134 return som_finish_writing (abfd);
4137 /* Read and save the string table associated with the given BFD. */
4140 som_slurp_string_table (bfd *abfd)
4145 /* Use the saved version if its available. */
4146 if (obj_som_stringtab (abfd) != NULL)
4149 /* I don't think this can currently happen, and I'm not sure it should
4150 really be an error, but it's better than getting unpredictable results
4151 from the host's malloc when passed a size of zero. */
4152 if (obj_som_stringtab_size (abfd) == 0)
4154 bfd_set_error (bfd_error_no_symbols);
4158 /* Allocate and read in the string table. */
4159 amt = obj_som_stringtab_size (abfd);
4160 stringtab = bfd_zmalloc (amt);
4161 if (stringtab == NULL)
4164 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4167 if (bfd_bread (stringtab, amt, abfd) != amt)
4170 /* Save our results and return success. */
4171 obj_som_stringtab (abfd) = stringtab;
4175 /* Return the amount of data (in bytes) required to hold the symbol
4176 table for this object. */
4179 som_get_symtab_upper_bound (bfd *abfd)
4181 if (!som_slurp_symbol_table (abfd))
4184 return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
4187 /* Convert from a SOM subspace index to a BFD section. */
4190 bfd_section_from_som_symbol (bfd *abfd, struct symbol_dictionary_record *symbol)
4194 /* The meaning of the symbol_info field changes for functions
4195 within executables. So only use the quick symbol_info mapping for
4196 incomplete objects and non-function symbols in executables. */
4197 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4198 || (symbol->symbol_type != ST_ENTRY
4199 && symbol->symbol_type != ST_PRI_PROG
4200 && symbol->symbol_type != ST_SEC_PROG
4201 && symbol->symbol_type != ST_MILLICODE))
4203 int index = symbol->symbol_info;
4205 for (section = abfd->sections; section != NULL; section = section->next)
4206 if (section->target_index == index && som_is_subspace (section))
4211 unsigned int value = symbol->symbol_value;
4213 /* For executables we will have to use the symbol's address and
4214 find out what section would contain that address. Yuk. */
4215 for (section = abfd->sections; section; section = section->next)
4216 if (value >= section->vma
4217 && value <= section->vma + section->size
4218 && som_is_subspace (section))
4222 /* Could be a symbol from an external library (such as an OMOS
4223 shared library). Don't abort. */
4224 return bfd_abs_section_ptr;
4227 /* Read and save the symbol table associated with the given BFD. */
4230 som_slurp_symbol_table (bfd *abfd)
4232 int symbol_count = bfd_get_symcount (abfd);
4233 int symsize = sizeof (struct symbol_dictionary_record);
4235 struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4236 som_symbol_type *sym, *symbase;
4239 /* Return saved value if it exists. */
4240 if (obj_som_symtab (abfd) != NULL)
4241 goto successful_return;
4243 /* Special case. This is *not* an error. */
4244 if (symbol_count == 0)
4245 goto successful_return;
4247 if (!som_slurp_string_table (abfd))
4250 stringtab = obj_som_stringtab (abfd);
4253 amt *= sizeof (som_symbol_type);
4254 symbase = bfd_zmalloc (amt);
4255 if (symbase == NULL)
4258 /* Read in the external SOM representation. */
4261 buf = bfd_malloc (amt);
4262 if (buf == NULL && amt != 0)
4264 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4266 if (bfd_bread (buf, amt, abfd) != amt)
4269 /* Iterate over all the symbols and internalize them. */
4270 endbufp = buf + symbol_count;
4271 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4273 /* I don't think we care about these. */
4274 if (bufp->symbol_type == ST_SYM_EXT
4275 || bufp->symbol_type == ST_ARG_EXT)
4278 /* Set some private data we care about. */
4279 if (bufp->symbol_type == ST_NULL)
4280 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4281 else if (bufp->symbol_type == ST_ABSOLUTE)
4282 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4283 else if (bufp->symbol_type == ST_DATA)
4284 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4285 else if (bufp->symbol_type == ST_CODE)
4286 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4287 else if (bufp->symbol_type == ST_PRI_PROG)
4288 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4289 else if (bufp->symbol_type == ST_SEC_PROG)
4290 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4291 else if (bufp->symbol_type == ST_ENTRY)
4292 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4293 else if (bufp->symbol_type == ST_MILLICODE)
4294 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4295 else if (bufp->symbol_type == ST_PLABEL)
4296 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4298 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4299 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc;
4301 /* Some reasonable defaults. */
4302 sym->symbol.the_bfd = abfd;
4303 sym->symbol.name = bufp->name.n_strx + stringtab;
4304 sym->symbol.value = bufp->symbol_value;
4305 sym->symbol.section = 0;
4306 sym->symbol.flags = 0;
4308 switch (bufp->symbol_type)
4312 sym->symbol.flags |= BSF_FUNCTION;
4313 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4314 sym->symbol.value & 0x3;
4315 sym->symbol.value &= ~0x3;
4322 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4323 sym->symbol.value & 0x3;
4324 sym->symbol.value &= ~0x3;
4325 /* If the symbol's scope is SS_UNSAT, then these are
4326 undefined function symbols. */
4327 if (bufp->symbol_scope == SS_UNSAT)
4328 sym->symbol.flags |= BSF_FUNCTION;
4334 /* Handle scoping and section information. */
4335 switch (bufp->symbol_scope)
4337 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4338 so the section associated with this symbol can't be known. */
4340 if (bufp->symbol_type != ST_STORAGE)
4341 sym->symbol.section = bfd_und_section_ptr;
4343 sym->symbol.section = bfd_com_section_ptr;
4344 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4348 if (bufp->symbol_type != ST_STORAGE)
4349 sym->symbol.section = bfd_und_section_ptr;
4351 sym->symbol.section = bfd_com_section_ptr;
4355 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4356 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4357 sym->symbol.value -= sym->symbol.section->vma;
4361 sym->symbol.flags |= BSF_LOCAL;
4362 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4363 sym->symbol.value -= sym->symbol.section->vma;
4367 /* Check for a weak symbol. */
4368 if (bufp->secondary_def)
4369 sym->symbol.flags |= BSF_WEAK;
4371 /* Mark section symbols and symbols used by the debugger.
4372 Note $START$ is a magic code symbol, NOT a section symbol. */
4373 if (sym->symbol.name[0] == '$'
4374 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4375 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4376 sym->symbol.flags |= BSF_SECTION_SYM;
4377 else if (!strncmp (sym->symbol.name, "L$0\002", 4))
4379 sym->symbol.flags |= BSF_SECTION_SYM;
4380 sym->symbol.name = sym->symbol.section->name;
4382 else if (!strncmp (sym->symbol.name, "L$0\001", 4))
4383 sym->symbol.flags |= BSF_DEBUGGING;
4385 /* Note increment at bottom of loop, since we skip some symbols
4386 we can not include it as part of the for statement. */
4390 /* We modify the symbol count to record the number of BFD symbols we
4392 bfd_get_symcount (abfd) = sym - symbase;
4394 /* Save our results and return success. */
4395 obj_som_symtab (abfd) = symbase;
4407 /* Canonicalize a SOM symbol table. Return the number of entries
4408 in the symbol table. */
4411 som_canonicalize_symtab (bfd *abfd, asymbol **location)
4414 som_symbol_type *symbase;
4416 if (!som_slurp_symbol_table (abfd))
4419 i = bfd_get_symcount (abfd);
4420 symbase = obj_som_symtab (abfd);
4422 for (; i > 0; i--, location++, symbase++)
4423 *location = &symbase->symbol;
4425 /* Final null pointer. */
4427 return (bfd_get_symcount (abfd));
4430 /* Make a SOM symbol. There is nothing special to do here. */
4433 som_make_empty_symbol (bfd *abfd)
4435 bfd_size_type amt = sizeof (som_symbol_type);
4436 som_symbol_type *new = bfd_zalloc (abfd, amt);
4440 new->symbol.the_bfd = abfd;
4442 return &new->symbol;
4445 /* Print symbol information. */
4448 som_print_symbol (bfd *abfd,
4451 bfd_print_symbol_type how)
4453 FILE *file = (FILE *) afile;
4457 case bfd_print_symbol_name:
4458 fprintf (file, "%s", symbol->name);
4460 case bfd_print_symbol_more:
4461 fprintf (file, "som ");
4462 fprintf_vma (file, symbol->value);
4463 fprintf (file, " %lx", (long) symbol->flags);
4465 case bfd_print_symbol_all:
4467 const char *section_name;
4469 section_name = symbol->section ? symbol->section->name : "(*none*)";
4470 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
4471 fprintf (file, " %s\t%s", section_name, symbol->name);
4478 som_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
4481 return name[0] == 'L' && name[1] == '$';
4484 /* Count or process variable-length SOM fixup records.
4486 To avoid code duplication we use this code both to compute the number
4487 of relocations requested by a stream, and to internalize the stream.
4489 When computing the number of relocations requested by a stream the
4490 variables rptr, section, and symbols have no meaning.
4492 Return the number of relocations requested by the fixup stream. When
4495 This needs at least two or three more passes to get it cleaned up. */
4498 som_set_reloc_info (unsigned char *fixup,
4500 arelent *internal_relocs,
4503 bfd_boolean just_count)
4505 unsigned int op, varname, deallocate_contents = 0;
4506 unsigned char *end_fixups = &fixup[end];
4507 const struct fixup_format *fp;
4509 unsigned char *save_fixup;
4510 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4512 arelent *rptr = internal_relocs;
4513 unsigned int offset = 0;
4515 #define var(c) variables[(c) - 'A']
4516 #define push(v) (*sp++ = (v))
4517 #define pop() (*--sp)
4518 #define emptystack() (sp == stack)
4520 som_initialize_reloc_queue (reloc_queue);
4521 memset (variables, 0, sizeof (variables));
4522 memset (stack, 0, sizeof (stack));
4525 saved_unwind_bits = 0;
4528 while (fixup < end_fixups)
4530 /* Save pointer to the start of this fixup. We'll use
4531 it later to determine if it is necessary to put this fixup
4535 /* Get the fixup code and its associated format. */
4537 fp = &som_fixup_formats[op];
4539 /* Handle a request for a previous fixup. */
4540 if (*fp->format == 'P')
4542 /* Get pointer to the beginning of the prev fixup, move
4543 the repeated fixup to the head of the queue. */
4544 fixup = reloc_queue[fp->D].reloc;
4545 som_reloc_queue_fix (reloc_queue, fp->D);
4548 /* Get the fixup code and its associated format. */
4550 fp = &som_fixup_formats[op];
4553 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4555 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4556 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4558 rptr->address = offset;
4559 rptr->howto = &som_hppa_howto_table[op];
4561 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4564 /* Set default input length to 0. Get the opcode class index
4568 var ('U') = saved_unwind_bits;
4570 /* Get the opcode format. */
4573 /* Process the format string. Parsing happens in two phases,
4574 parse RHS, then assign to LHS. Repeat until no more
4575 characters in the format string. */
4578 /* The variable this pass is going to compute a value for. */
4581 /* Start processing RHS. Continue until a NULL or '=' is found. */
4586 /* If this is a variable, push it on the stack. */
4590 /* If this is a lower case letter, then it represents
4591 additional data from the fixup stream to be pushed onto
4593 else if (ISLOWER (c))
4595 int bits = (c - 'a') * 8;
4596 for (v = 0; c > 'a'; --c)
4597 v = (v << 8) | *fixup++;
4599 v = sign_extend (v, bits);
4603 /* A decimal constant. Push it on the stack. */
4604 else if (ISDIGIT (c))
4607 while (ISDIGIT (*cp))
4608 v = (v * 10) + (*cp++ - '0');
4612 /* An operator. Pop two two values from the stack and
4613 use them as operands to the given operation. Push
4614 the result of the operation back on the stack. */
4636 while (*cp && *cp != '=');
4638 /* Move over the equal operator. */
4641 /* Pop the RHS off the stack. */
4644 /* Perform the assignment. */
4647 /* Handle side effects. and special 'O' stack cases. */
4650 /* Consume some bytes from the input space. */
4654 /* A symbol to use in the relocation. Make a note
4655 of this if we are not just counting. */
4658 rptr->sym_ptr_ptr = &symbols[c];
4660 /* Argument relocation bits for a function call. */
4664 unsigned int tmp = var ('R');
4667 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
4668 && R_PCREL_CALL + 10 > op)
4669 || (som_hppa_howto_table[op].type == R_ABS_CALL
4670 && R_ABS_CALL + 10 > op))
4672 /* Simple encoding. */
4679 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
4681 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
4683 rptr->addend |= 1 << 8 | 1 << 6;
4685 rptr->addend |= 1 << 8;
4689 unsigned int tmp1, tmp2;
4691 /* First part is easy -- low order two bits are
4692 directly copied, then shifted away. */
4693 rptr->addend = tmp & 0x3;
4696 /* Diving the result by 10 gives us the second
4697 part. If it is 9, then the first two words
4698 are a double precision paramater, else it is
4699 3 * the first arg bits + the 2nd arg bits. */
4703 rptr->addend += (0xe << 6);
4706 /* Get the two pieces. */
4709 /* Put them in the addend. */
4710 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
4713 /* What's left is the third part. It's unpacked
4714 just like the second. */
4716 rptr->addend += (0xe << 2);
4721 rptr->addend += (tmp2 << 4) + (tmp << 2);
4724 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
4727 /* Handle the linker expression stack. */
4732 subop = comp1_opcodes;
4735 subop = comp2_opcodes;
4738 subop = comp3_opcodes;
4743 while (*subop <= (unsigned char) c)
4747 /* The lower 32unwind bits must be persistent. */
4749 saved_unwind_bits = var ('U');
4757 /* If we used a previous fixup, clean up after it. */
4760 fixup = save_fixup + 1;
4764 else if (fixup > save_fixup + 1)
4765 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
4767 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
4769 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
4770 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
4772 /* Done with a single reloction. Loop back to the top. */
4775 if (som_hppa_howto_table[op].type == R_ENTRY)
4776 rptr->addend = var ('T');
4777 else if (som_hppa_howto_table[op].type == R_EXIT)
4778 rptr->addend = var ('U');
4779 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
4780 || som_hppa_howto_table[op].type == R_ABS_CALL)
4782 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
4784 /* Try what was specified in R_DATA_OVERRIDE first
4785 (if anything). Then the hard way using the
4786 section contents. */
4787 rptr->addend = var ('V');
4789 if (rptr->addend == 0 && !section->contents)
4791 /* Got to read the damn contents first. We don't
4792 bother saving the contents (yet). Add it one
4793 day if the need arises. */
4795 if (!bfd_malloc_and_get_section (section->owner, section,
4798 if (contents != NULL)
4800 return (unsigned) -1;
4802 section->contents = contents;
4803 deallocate_contents = 1;
4805 else if (rptr->addend == 0)
4806 rptr->addend = bfd_get_32 (section->owner,
4808 + offset - var ('L')));
4812 rptr->addend = var ('V');
4816 /* Now that we've handled a "full" relocation, reset
4818 memset (variables, 0, sizeof (variables));
4819 memset (stack, 0, sizeof (stack));
4822 if (deallocate_contents)
4823 free (section->contents);
4833 /* Read in the relocs (aka fixups in SOM terms) for a section.
4835 som_get_reloc_upper_bound calls this routine with JUST_COUNT
4836 set to TRUE to indicate it only needs a count of the number
4837 of actual relocations. */
4840 som_slurp_reloc_table (bfd *abfd,
4843 bfd_boolean just_count)
4845 unsigned char *external_relocs;
4846 unsigned int fixup_stream_size;
4847 arelent *internal_relocs;
4848 unsigned int num_relocs;
4851 fixup_stream_size = som_section_data (section)->reloc_size;
4852 /* If there were no relocations, then there is nothing to do. */
4853 if (section->reloc_count == 0)
4856 /* If reloc_count is -1, then the relocation stream has not been
4857 parsed. We must do so now to know how many relocations exist. */
4858 if (section->reloc_count == (unsigned) -1)
4860 amt = fixup_stream_size;
4861 external_relocs = bfd_malloc (amt);
4862 if (external_relocs == NULL)
4864 /* Read in the external forms. */
4866 obj_som_reloc_filepos (abfd) + section->rel_filepos,
4870 if (bfd_bread (external_relocs, amt, abfd) != amt)
4873 /* Let callers know how many relocations found.
4874 also save the relocation stream as we will
4876 section->reloc_count = som_set_reloc_info (external_relocs,
4878 NULL, NULL, NULL, TRUE);
4880 som_section_data (section)->reloc_stream = external_relocs;
4883 /* If the caller only wanted a count, then return now. */
4887 num_relocs = section->reloc_count;
4888 external_relocs = som_section_data (section)->reloc_stream;
4889 /* Return saved information about the relocations if it is available. */
4890 if (section->relocation != NULL)
4894 amt *= sizeof (arelent);
4895 internal_relocs = bfd_zalloc (abfd, (amt));
4896 if (internal_relocs == NULL)
4899 /* Process and internalize the relocations. */
4900 som_set_reloc_info (external_relocs, fixup_stream_size,
4901 internal_relocs, section, symbols, FALSE);
4903 /* We're done with the external relocations. Free them. */
4904 free (external_relocs);
4905 som_section_data (section)->reloc_stream = NULL;
4907 /* Save our results and return success. */
4908 section->relocation = internal_relocs;
4912 /* Return the number of bytes required to store the relocation
4913 information associated with the given section. */
4916 som_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
4918 /* If section has relocations, then read in the relocation stream
4919 and parse it to determine how many relocations exist. */
4920 if (asect->flags & SEC_RELOC)
4922 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
4924 return (asect->reloc_count + 1) * sizeof (arelent *);
4926 /* There are no relocations. */
4930 /* Convert relocations from SOM (external) form into BFD internal
4931 form. Return the number of relocations. */
4934 som_canonicalize_reloc (bfd *abfd,
4942 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
4945 count = section->reloc_count;
4946 tblptr = section->relocation;
4949 *relptr++ = tblptr++;
4952 return section->reloc_count;
4955 extern const bfd_target som_vec;
4957 /* A hook to set up object file dependent section information. */
4960 som_new_section_hook (bfd *abfd, asection *newsect)
4962 bfd_size_type amt = sizeof (struct som_section_data_struct);
4964 newsect->used_by_bfd = bfd_zalloc (abfd, amt);
4965 if (!newsect->used_by_bfd)
4967 newsect->alignment_power = 3;
4969 /* We allow more than three sections internally. */
4973 /* Copy any private info we understand from the input symbol
4974 to the output symbol. */
4977 som_bfd_copy_private_symbol_data (bfd *ibfd,
4982 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
4983 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
4985 /* One day we may try to grok other private data. */
4986 if (ibfd->xvec->flavour != bfd_target_som_flavour
4987 || obfd->xvec->flavour != bfd_target_som_flavour)
4990 /* The only private information we need to copy is the argument relocation
4992 output_symbol->tc_data.ap.hppa_arg_reloc =
4993 input_symbol->tc_data.ap.hppa_arg_reloc;
4998 /* Copy any private info we understand from the input section
4999 to the output section. */
5002 som_bfd_copy_private_section_data (bfd *ibfd,
5009 /* One day we may try to grok other private data. */
5010 if (ibfd->xvec->flavour != bfd_target_som_flavour
5011 || obfd->xvec->flavour != bfd_target_som_flavour
5012 || (!som_is_space (isection) && !som_is_subspace (isection)))
5015 amt = sizeof (struct som_copyable_section_data_struct);
5016 som_section_data (osection)->copy_data = bfd_zalloc (obfd, amt);
5017 if (som_section_data (osection)->copy_data == NULL)
5020 memcpy (som_section_data (osection)->copy_data,
5021 som_section_data (isection)->copy_data,
5022 sizeof (struct som_copyable_section_data_struct));
5024 /* Reparent if necessary. */
5025 if (som_section_data (osection)->copy_data->container)
5026 som_section_data (osection)->copy_data->container =
5027 som_section_data (osection)->copy_data->container->output_section;
5032 /* Copy any private info we understand from the input bfd
5033 to the output bfd. */
5036 som_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
5038 /* One day we may try to grok other private data. */
5039 if (ibfd->xvec->flavour != bfd_target_som_flavour
5040 || obfd->xvec->flavour != bfd_target_som_flavour)
5043 /* Allocate some memory to hold the data we need. */
5044 obj_som_exec_data (obfd) = bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5045 if (obj_som_exec_data (obfd) == NULL)
5048 /* Now copy the data. */
5049 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5050 sizeof (struct som_exec_data));
5055 /* Display the SOM header. */
5058 som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
5060 struct som_exec_auxhdr *exec_header;
5061 struct aux_id* auxhdr;
5066 exec_header = obj_som_exec_hdr (abfd);
5069 fprintf (f, _("\nExec Auxiliary Header\n"));
5070 fprintf (f, " flags ");
5071 auxhdr = &exec_header->som_auxhdr;
5072 if (auxhdr->mandatory)
5073 fprintf (f, "mandatory ");
5075 fprintf (f, "copy ");
5077 fprintf (f, "append ");
5079 fprintf (f, "ignore ");
5081 fprintf (f, " type %#x\n", auxhdr->type);
5082 fprintf (f, " length %#x\n", auxhdr->length);
5084 /* Note that, depending on the HP-UX version, the following fields can be
5085 either ints, or longs. */
5087 fprintf (f, " text size %#lx\n", (long) exec_header->exec_tsize);
5088 fprintf (f, " text memory offset %#lx\n", (long) exec_header->exec_tmem);
5089 fprintf (f, " text file offset %#lx\n", (long) exec_header->exec_tfile);
5090 fprintf (f, " data size %#lx\n", (long) exec_header->exec_dsize);
5091 fprintf (f, " data memory offset %#lx\n", (long) exec_header->exec_dmem);
5092 fprintf (f, " data file offset %#lx\n", (long) exec_header->exec_dfile);
5093 fprintf (f, " bss size %#lx\n", (long) exec_header->exec_bsize);
5094 fprintf (f, " entry point %#lx\n", (long) exec_header->exec_entry);
5095 fprintf (f, " loader flags %#lx\n", (long) exec_header->exec_flags);
5096 fprintf (f, " bss initializer %#lx\n", (long) exec_header->exec_bfill);
5102 /* Set backend info for sections which can not be described
5103 in the BFD data structures. */
5106 bfd_som_set_section_attributes (asection *section,
5109 unsigned int sort_key,
5112 /* Allocate memory to hold the magic information. */
5113 if (som_section_data (section)->copy_data == NULL)
5115 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5117 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5118 if (som_section_data (section)->copy_data == NULL)
5121 som_section_data (section)->copy_data->sort_key = sort_key;
5122 som_section_data (section)->copy_data->is_defined = defined;
5123 som_section_data (section)->copy_data->is_private = private;
5124 som_section_data (section)->copy_data->container = section;
5125 som_section_data (section)->copy_data->space_number = spnum;
5129 /* Set backend info for subsections which can not be described
5130 in the BFD data structures. */
5133 bfd_som_set_subsection_attributes (asection *section,
5134 asection *container,
5136 unsigned int sort_key,
5142 /* Allocate memory to hold the magic information. */
5143 if (som_section_data (section)->copy_data == NULL)
5145 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5147 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5148 if (som_section_data (section)->copy_data == NULL)
5151 som_section_data (section)->copy_data->sort_key = sort_key;
5152 som_section_data (section)->copy_data->access_control_bits = access;
5153 som_section_data (section)->copy_data->quadrant = quadrant;
5154 som_section_data (section)->copy_data->container = container;
5155 som_section_data (section)->copy_data->is_comdat = comdat;
5156 som_section_data (section)->copy_data->is_common = common;
5157 som_section_data (section)->copy_data->dup_common = dup_common;
5161 /* Set the full SOM symbol type. SOM needs far more symbol information
5162 than any other object file format I'm aware of. It is mandatory
5163 to be able to know if a symbol is an entry point, millicode, data,
5164 code, absolute, storage request, or procedure label. If you get
5165 the symbol type wrong your program will not link. */
5168 bfd_som_set_symbol_type (asymbol *symbol, unsigned int type)
5170 som_symbol_data (symbol)->som_type = type;
5173 /* Attach an auxiliary header to the BFD backend so that it may be
5174 written into the object file. */
5177 bfd_som_attach_aux_hdr (bfd *abfd, int type, char *string)
5181 if (type == VERSION_AUX_ID)
5183 size_t len = strlen (string);
5187 pad = (4 - (len % 4));
5188 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5189 obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
5190 if (!obj_som_version_hdr (abfd))
5192 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5193 obj_som_version_hdr (abfd)->header_id.length = len + pad;
5194 obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
5195 obj_som_version_hdr (abfd)->string_length = len;
5196 strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
5198 else if (type == COPYRIGHT_AUX_ID)
5200 int len = strlen (string);
5204 pad = (4 - (len % 4));
5205 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5206 obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
5207 if (!obj_som_copyright_hdr (abfd))
5209 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5210 obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
5211 obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
5212 obj_som_copyright_hdr (abfd)->string_length = len;
5213 strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
5218 /* Attach a compilation unit header to the BFD backend so that it may be
5219 written into the object file. */
5222 bfd_som_attach_compilation_unit (bfd *abfd,
5224 const char *language_name,
5225 const char *product_id,
5226 const char *version_id)
5228 COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
5236 n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5237 if (n->f.n_name == NULL) \
5239 strcpy (n->f.n_name, f); \
5243 STRDUP (language_name);
5244 STRDUP (product_id);
5245 STRDUP (version_id);
5249 obj_som_compilation_unit (abfd) = n;
5255 som_get_section_contents (bfd *abfd,
5259 bfd_size_type count)
5261 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5263 if ((bfd_size_type) (offset+count) > section->size
5264 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5265 || bfd_bread (location, count, abfd) != count)
5266 return FALSE; /* On error. */
5271 som_set_section_contents (bfd *abfd,
5273 const void *location,
5275 bfd_size_type count)
5277 if (! abfd->output_has_begun)
5279 /* Set up fixed parts of the file, space, and subspace headers.
5280 Notify the world that output has begun. */
5281 som_prep_headers (abfd);
5282 abfd->output_has_begun = TRUE;
5283 /* Start writing the object file. This include all the string
5284 tables, fixup streams, and other portions of the object file. */
5285 som_begin_writing (abfd);
5288 /* Only write subspaces which have "real" contents (eg. the contents
5289 are not generated at run time by the OS). */
5290 if (!som_is_subspace (section)
5291 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5294 /* Seek to the proper offset within the object file and write the
5296 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5297 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5300 if (bfd_bwrite (location, count, abfd) != count)
5306 som_set_arch_mach (bfd *abfd,
5307 enum bfd_architecture arch,
5308 unsigned long machine)
5310 /* Allow any architecture to be supported by the SOM backend. */
5311 return bfd_default_set_arch_mach (abfd, arch, machine);
5315 som_find_nearest_line (bfd *abfd ATTRIBUTE_UNUSED,
5316 asection *section ATTRIBUTE_UNUSED,
5317 asymbol **symbols ATTRIBUTE_UNUSED,
5318 bfd_vma offset ATTRIBUTE_UNUSED,
5319 const char **filename_ptr ATTRIBUTE_UNUSED,
5320 const char **functionname_ptr ATTRIBUTE_UNUSED,
5321 unsigned int *line_ptr ATTRIBUTE_UNUSED)
5327 som_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
5328 bfd_boolean reloc ATTRIBUTE_UNUSED)
5330 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5336 /* Return the single-character symbol type corresponding to
5337 SOM section S, or '?' for an unknown SOM section. */
5340 som_section_type (const char *s)
5342 const struct section_to_type *t;
5344 for (t = &stt[0]; t->section; t++)
5345 if (!strcmp (s, t->section))
5351 som_decode_symclass (asymbol *symbol)
5355 if (bfd_is_com_section (symbol->section))
5357 if (bfd_is_und_section (symbol->section))
5359 if (bfd_is_ind_section (symbol->section))
5361 if (symbol->flags & BSF_WEAK)
5363 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5366 if (bfd_is_abs_section (symbol->section)
5367 || (som_symbol_data (symbol) != NULL
5368 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5370 else if (symbol->section)
5371 c = som_section_type (symbol->section->name);
5374 if (symbol->flags & BSF_GLOBAL)
5379 /* Return information about SOM symbol SYMBOL in RET. */
5382 som_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
5386 ret->type = som_decode_symclass (symbol);
5387 if (ret->type != 'U')
5388 ret->value = symbol->value + symbol->section->vma;
5391 ret->name = symbol->name;
5394 /* Count the number of symbols in the archive symbol table. Necessary
5395 so that we can allocate space for all the carsyms at once. */
5398 som_bfd_count_ar_symbols (bfd *abfd,
5399 struct lst_header *lst_header,
5403 unsigned int *hash_table = NULL;
5405 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5407 amt = lst_header->hash_size;
5408 amt *= sizeof (unsigned int);
5409 hash_table = bfd_malloc (amt);
5410 if (hash_table == NULL && lst_header->hash_size != 0)
5413 /* Don't forget to initialize the counter! */
5416 /* Read in the hash table. The has table is an array of 32bit file offsets
5417 which point to the hash chains. */
5418 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5421 /* Walk each chain counting the number of symbols found on that particular
5423 for (i = 0; i < lst_header->hash_size; i++)
5425 struct lst_symbol_record lst_symbol;
5427 /* An empty chain has zero as it's file offset. */
5428 if (hash_table[i] == 0)
5431 /* Seek to the first symbol in this hash chain. */
5432 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5435 /* Read in this symbol and update the counter. */
5436 amt = sizeof (lst_symbol);
5437 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5442 /* Now iterate through the rest of the symbols on this chain. */
5443 while (lst_symbol.next_entry)
5446 /* Seek to the next symbol. */
5447 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5451 /* Read the symbol in and update the counter. */
5452 amt = sizeof (lst_symbol);
5453 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5459 if (hash_table != NULL)
5464 if (hash_table != NULL)
5469 /* Fill in the canonical archive symbols (SYMS) from the archive described
5470 by ABFD and LST_HEADER. */
5473 som_bfd_fill_in_ar_symbols (bfd *abfd,
5474 struct lst_header *lst_header,
5477 unsigned int i, len;
5478 carsym *set = syms[0];
5479 unsigned int *hash_table = NULL;
5480 struct som_entry *som_dict = NULL;
5482 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5484 amt = lst_header->hash_size;
5485 amt *= sizeof (unsigned int);
5486 hash_table = bfd_malloc (amt);
5487 if (hash_table == NULL && lst_header->hash_size != 0)
5490 /* Read in the hash table. The has table is an array of 32bit file offsets
5491 which point to the hash chains. */
5492 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5495 /* Seek to and read in the SOM dictionary. We will need this to fill
5496 in the carsym's filepos field. */
5497 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5500 amt = lst_header->module_count;
5501 amt *= sizeof (struct som_entry);
5502 som_dict = bfd_malloc (amt);
5503 if (som_dict == NULL && lst_header->module_count != 0)
5506 if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
5509 /* Walk each chain filling in the carsyms as we go along. */
5510 for (i = 0; i < lst_header->hash_size; i++)
5512 struct lst_symbol_record lst_symbol;
5514 /* An empty chain has zero as it's file offset. */
5515 if (hash_table[i] == 0)
5518 /* Seek to and read the first symbol on the chain. */
5519 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5522 amt = sizeof (lst_symbol);
5523 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5526 /* Get the name of the symbol, first get the length which is stored
5527 as a 32bit integer just before the symbol.
5529 One might ask why we don't just read in the entire string table
5530 and index into it. Well, according to the SOM ABI the string
5531 index can point *anywhere* in the archive to save space, so just
5532 using the string table would not be safe. */
5533 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5534 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5537 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5540 /* Allocate space for the name and null terminate it too. */
5541 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5544 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5549 /* Fill in the file offset. Note that the "location" field points
5550 to the SOM itself, not the ar_hdr in front of it. */
5551 set->file_offset = som_dict[lst_symbol.som_index].location
5552 - sizeof (struct ar_hdr);
5554 /* Go to the next symbol. */
5557 /* Iterate through the rest of the chain. */
5558 while (lst_symbol.next_entry)
5560 /* Seek to the next symbol and read it in. */
5561 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5565 amt = sizeof (lst_symbol);
5566 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5569 /* Seek to the name length & string and read them in. */
5570 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5571 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5574 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5577 /* Allocate space for the name and null terminate it too. */
5578 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5582 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5586 /* Fill in the file offset. Note that the "location" field points
5587 to the SOM itself, not the ar_hdr in front of it. */
5588 set->file_offset = som_dict[lst_symbol.som_index].location
5589 - sizeof (struct ar_hdr);
5591 /* Go on to the next symbol. */
5595 /* If we haven't died by now, then we successfully read the entire
5596 archive symbol table. */
5597 if (hash_table != NULL)
5599 if (som_dict != NULL)
5604 if (hash_table != NULL)
5606 if (som_dict != NULL)
5611 /* Read in the LST from the archive. */
5614 som_slurp_armap (bfd *abfd)
5616 struct lst_header lst_header;
5617 struct ar_hdr ar_header;
5618 unsigned int parsed_size;
5619 struct artdata *ardata = bfd_ardata (abfd);
5621 bfd_size_type amt = 16;
5622 int i = bfd_bread ((void *) nextname, amt, abfd);
5624 /* Special cases. */
5630 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
5633 /* For archives without .o files there is no symbol table. */
5634 if (strncmp (nextname, "/ ", 16))
5636 bfd_has_map (abfd) = FALSE;
5640 /* Read in and sanity check the archive header. */
5641 amt = sizeof (struct ar_hdr);
5642 if (bfd_bread ((void *) &ar_header, amt, abfd) != amt)
5645 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
5647 bfd_set_error (bfd_error_malformed_archive);
5651 /* How big is the archive symbol table entry? */
5653 parsed_size = strtol (ar_header.ar_size, NULL, 10);
5656 bfd_set_error (bfd_error_malformed_archive);
5660 /* Save off the file offset of the first real user data. */
5661 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
5663 /* Read in the library symbol table. We'll make heavy use of this
5664 in just a minute. */
5665 amt = sizeof (struct lst_header);
5666 if (bfd_bread ((void *) &lst_header, amt, abfd) != amt)
5670 if (lst_header.a_magic != LIBMAGIC)
5672 bfd_set_error (bfd_error_malformed_archive);
5676 /* Count the number of symbols in the library symbol table. */
5677 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
5680 /* Get back to the start of the library symbol table. */
5681 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
5682 + sizeof (struct lst_header)), SEEK_SET) != 0)
5685 /* Initialize the cache and allocate space for the library symbols. */
5687 amt = ardata->symdef_count;
5688 amt *= sizeof (carsym);
5689 ardata->symdefs = bfd_alloc (abfd, amt);
5690 if (!ardata->symdefs)
5693 /* Now fill in the canonical archive symbols. */
5694 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
5697 /* Seek back to the "first" file in the archive. Note the "first"
5698 file may be the extended name table. */
5699 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
5702 /* Notify the generic archive code that we have a symbol map. */
5703 bfd_has_map (abfd) = TRUE;
5707 /* Begin preparing to write a SOM library symbol table.
5709 As part of the prep work we need to determine the number of symbols
5710 and the size of the associated string section. */
5713 som_bfd_prep_for_ar_write (bfd *abfd,
5714 unsigned int *num_syms,
5715 unsigned int *stringsize)
5717 bfd *curr_bfd = abfd->archive_head;
5719 /* Some initialization. */
5723 /* Iterate over each BFD within this archive. */
5724 while (curr_bfd != NULL)
5726 unsigned int curr_count, i;
5727 som_symbol_type *sym;
5729 /* Don't bother for non-SOM objects. */
5730 if (curr_bfd->format != bfd_object
5731 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5733 curr_bfd = curr_bfd->next;
5737 /* Make sure the symbol table has been read, then snag a pointer
5738 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5739 but doing so avoids allocating lots of extra memory. */
5740 if (! som_slurp_symbol_table (curr_bfd))
5743 sym = obj_som_symtab (curr_bfd);
5744 curr_count = bfd_get_symcount (curr_bfd);
5746 /* Examine each symbol to determine if it belongs in the
5747 library symbol table. */
5748 for (i = 0; i < curr_count; i++, sym++)
5750 struct som_misc_symbol_info info;
5752 /* Derive SOM information from the BFD symbol. */
5753 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5755 /* Should we include this symbol? */
5756 if (info.symbol_type == ST_NULL
5757 || info.symbol_type == ST_SYM_EXT
5758 || info.symbol_type == ST_ARG_EXT)
5761 /* Only global symbols and unsatisfied commons. */
5762 if (info.symbol_scope != SS_UNIVERSAL
5763 && info.symbol_type != ST_STORAGE)
5766 /* Do no include undefined symbols. */
5767 if (bfd_is_und_section (sym->symbol.section))
5770 /* Bump the various counters, being careful to honor
5771 alignment considerations in the string table. */
5773 *stringsize = *stringsize + strlen (sym->symbol.name) + 5;
5774 while (*stringsize % 4)
5778 curr_bfd = curr_bfd->next;
5783 /* Hash a symbol name based on the hashing algorithm presented in the
5787 som_bfd_ar_symbol_hash (asymbol *symbol)
5789 unsigned int len = strlen (symbol->name);
5791 /* Names with length 1 are special. */
5793 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
5795 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
5796 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
5799 /* Do the bulk of the work required to write the SOM library
5803 som_bfd_ar_write_symbol_stuff (bfd *abfd,
5805 unsigned int string_size,
5806 struct lst_header lst,
5809 file_ptr lst_filepos;
5810 char *strings = NULL, *p;
5811 struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
5813 unsigned int *hash_table = NULL;
5814 struct som_entry *som_dict = NULL;
5815 struct lst_symbol_record **last_hash_entry = NULL;
5816 unsigned int curr_som_offset, som_index = 0;
5819 amt = lst.hash_size;
5820 amt *= sizeof (unsigned int);
5821 hash_table = bfd_zmalloc (amt);
5822 if (hash_table == NULL && lst.hash_size != 0)
5825 amt = lst.module_count;
5826 amt *= sizeof (struct som_entry);
5827 som_dict = bfd_zmalloc (amt);
5828 if (som_dict == NULL && lst.module_count != 0)
5831 amt = lst.hash_size;
5832 amt *= sizeof (struct lst_symbol_record *);
5833 last_hash_entry = bfd_zmalloc (amt);
5834 if (last_hash_entry == NULL && lst.hash_size != 0)
5837 /* Lots of fields are file positions relative to the start
5838 of the lst record. So save its location. */
5839 lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5841 /* Symbols have som_index fields, so we have to keep track of the
5842 index of each SOM in the archive.
5844 The SOM dictionary has (among other things) the absolute file
5845 position for the SOM which a particular dictionary entry
5846 describes. We have to compute that information as we iterate
5847 through the SOMs/symbols. */
5850 /* We add in the size of the archive header twice as the location
5851 in the SOM dictionary is the actual offset of the SOM, not the
5852 archive header before the SOM. */
5853 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end;
5855 /* Make room for the archive header and the contents of the
5856 extended string table. Note that elength includes the size
5857 of the archive header for the extended name table! */
5859 curr_som_offset += elength;
5861 /* Make sure we're properly aligned. */
5862 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
5864 /* FIXME should be done with buffers just like everything else... */
5866 amt *= sizeof (struct lst_symbol_record);
5867 lst_syms = bfd_malloc (amt);
5868 if (lst_syms == NULL && nsyms != 0)
5870 strings = bfd_malloc ((bfd_size_type) string_size);
5871 if (strings == NULL && string_size != 0)
5875 curr_lst_sym = lst_syms;
5877 curr_bfd = abfd->archive_head;
5878 while (curr_bfd != NULL)
5880 unsigned int curr_count, i;
5881 som_symbol_type *sym;
5883 /* Don't bother for non-SOM objects. */
5884 if (curr_bfd->format != bfd_object
5885 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5887 curr_bfd = curr_bfd->next;
5891 /* Make sure the symbol table has been read, then snag a pointer
5892 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5893 but doing so avoids allocating lots of extra memory. */
5894 if (! som_slurp_symbol_table (curr_bfd))
5897 sym = obj_som_symtab (curr_bfd);
5898 curr_count = bfd_get_symcount (curr_bfd);
5900 for (i = 0; i < curr_count; i++, sym++)
5902 struct som_misc_symbol_info info;
5904 /* Derive SOM information from the BFD symbol. */
5905 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5907 /* Should we include this symbol? */
5908 if (info.symbol_type == ST_NULL
5909 || info.symbol_type == ST_SYM_EXT
5910 || info.symbol_type == ST_ARG_EXT)
5913 /* Only global symbols and unsatisfied commons. */
5914 if (info.symbol_scope != SS_UNIVERSAL
5915 && info.symbol_type != ST_STORAGE)
5918 /* Do no include undefined symbols. */
5919 if (bfd_is_und_section (sym->symbol.section))
5922 /* If this is the first symbol from this SOM, then update
5923 the SOM dictionary too. */
5924 if (som_dict[som_index].location == 0)
5926 som_dict[som_index].location = curr_som_offset;
5927 som_dict[som_index].length = arelt_size (curr_bfd);
5930 /* Fill in the lst symbol record. */
5931 curr_lst_sym->hidden = 0;
5932 curr_lst_sym->secondary_def = info.secondary_def;
5933 curr_lst_sym->symbol_type = info.symbol_type;
5934 curr_lst_sym->symbol_scope = info.symbol_scope;
5935 curr_lst_sym->check_level = 0;
5936 curr_lst_sym->must_qualify = 0;
5937 curr_lst_sym->initially_frozen = 0;
5938 curr_lst_sym->memory_resident = 0;
5939 curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section);
5940 curr_lst_sym->dup_common = info.dup_common;
5941 curr_lst_sym->xleast = 3;
5942 curr_lst_sym->arg_reloc = info.arg_reloc;
5943 curr_lst_sym->name.n_strx = p - strings + 4;
5944 curr_lst_sym->qualifier_name.n_strx = 0;
5945 curr_lst_sym->symbol_info = info.symbol_info;
5946 curr_lst_sym->symbol_value = info.symbol_value | info.priv_level;
5947 curr_lst_sym->symbol_descriptor = 0;
5948 curr_lst_sym->reserved = 0;
5949 curr_lst_sym->som_index = som_index;
5950 curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
5951 curr_lst_sym->next_entry = 0;
5953 /* Insert into the hash table. */
5954 if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
5956 struct lst_symbol_record *tmp;
5958 /* There is already something at the head of this hash chain,
5959 so tack this symbol onto the end of the chain. */
5960 tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size];
5962 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
5964 + lst.module_count * sizeof (struct som_entry)
5965 + sizeof (struct lst_header);
5968 /* First entry in this hash chain. */
5969 hash_table[curr_lst_sym->symbol_key % lst.hash_size]
5970 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
5972 + lst.module_count * sizeof (struct som_entry)
5973 + sizeof (struct lst_header);
5975 /* Keep track of the last symbol we added to this chain so we can
5976 easily update its next_entry pointer. */
5977 last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]
5980 /* Update the string table. */
5981 bfd_put_32 (abfd, strlen (sym->symbol.name), p);
5983 strcpy (p, sym->symbol.name);
5984 p += strlen (sym->symbol.name) + 1;
5987 bfd_put_8 (abfd, 0, p);
5991 /* Head to the next symbol. */
5995 /* Keep track of where each SOM will finally reside; then look
5997 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
5999 /* A particular object in the archive may have an odd length; the
6000 linker requires objects begin on an even boundary. So round
6001 up the current offset as necessary. */
6002 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6003 curr_bfd = curr_bfd->next;
6007 /* Now scribble out the hash table. */
6008 amt = lst.hash_size * 4;
6009 if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
6012 /* Then the SOM dictionary. */
6013 amt = lst.module_count * sizeof (struct som_entry);
6014 if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
6017 /* The library symbols. */
6018 amt = nsyms * sizeof (struct lst_symbol_record);
6019 if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
6022 /* And finally the strings. */
6024 if (bfd_bwrite ((void *) strings, amt, abfd) != amt)
6027 if (hash_table != NULL)
6029 if (som_dict != NULL)
6031 if (last_hash_entry != NULL)
6032 free (last_hash_entry);
6033 if (lst_syms != NULL)
6035 if (strings != NULL)
6040 if (hash_table != NULL)
6042 if (som_dict != NULL)
6044 if (last_hash_entry != NULL)
6045 free (last_hash_entry);
6046 if (lst_syms != NULL)
6048 if (strings != NULL)
6054 /* Write out the LST for the archive.
6056 You'll never believe this is really how armaps are handled in SOM... */
6059 som_write_armap (bfd *abfd,
6060 unsigned int elength,
6061 struct orl *map ATTRIBUTE_UNUSED,
6062 unsigned int orl_count ATTRIBUTE_UNUSED,
6063 int stridx ATTRIBUTE_UNUSED)
6066 struct stat statbuf;
6067 unsigned int i, lst_size, nsyms, stringsize;
6069 struct lst_header lst;
6073 /* We'll use this for the archive's date and mode later. */
6074 if (stat (abfd->filename, &statbuf) != 0)
6076 bfd_set_error (bfd_error_system_call);
6080 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6082 /* Account for the lst header first. */
6083 lst_size = sizeof (struct lst_header);
6085 /* Start building the LST header. */
6086 /* FIXME: Do we need to examine each element to determine the
6087 largest id number? */
6088 lst.system_id = CPU_PA_RISC1_0;
6089 lst.a_magic = LIBMAGIC;
6090 lst.version_id = VERSION_ID;
6091 lst.file_time.secs = 0;
6092 lst.file_time.nanosecs = 0;
6094 lst.hash_loc = lst_size;
6095 lst.hash_size = SOM_LST_HASH_SIZE;
6097 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6098 lst_size += 4 * SOM_LST_HASH_SIZE;
6100 /* We need to count the number of SOMs in this archive. */
6101 curr_bfd = abfd->archive_head;
6102 lst.module_count = 0;
6103 while (curr_bfd != NULL)
6105 /* Only true SOM objects count. */
6106 if (curr_bfd->format == bfd_object
6107 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6109 curr_bfd = curr_bfd->next;
6111 lst.module_limit = lst.module_count;
6112 lst.dir_loc = lst_size;
6113 lst_size += sizeof (struct som_entry) * lst.module_count;
6115 /* We don't support import/export tables, auxiliary headers,
6116 or free lists yet. Make the linker work a little harder
6117 to make our life easier. */
6120 lst.export_count = 0;
6125 /* Count how many symbols we will have on the hash chains and the
6126 size of the associated string table. */
6127 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6130 lst_size += sizeof (struct lst_symbol_record) * nsyms;
6132 /* For the string table. One day we might actually use this info
6133 to avoid small seeks/reads when reading archives. */
6134 lst.string_loc = lst_size;
6135 lst.string_size = stringsize;
6136 lst_size += stringsize;
6138 /* SOM ABI says this must be zero. */
6140 lst.file_end = lst_size;
6142 /* Compute the checksum. Must happen after the entire lst header
6146 for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
6147 lst.checksum ^= *p++;
6149 sprintf (hdr.ar_name, "/ ");
6150 sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
6151 sprintf (hdr.ar_uid, "%ld", (long) getuid ());
6152 sprintf (hdr.ar_gid, "%ld", (long) getgid ());
6153 sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode);
6154 sprintf (hdr.ar_size, "%-10d", (int) lst_size);
6155 hdr.ar_fmag[0] = '`';
6156 hdr.ar_fmag[1] = '\012';
6158 /* Turn any nulls into spaces. */
6159 for (i = 0; i < sizeof (struct ar_hdr); i++)
6160 if (((char *) (&hdr))[i] == '\0')
6161 (((char *) (&hdr))[i]) = ' ';
6163 /* Scribble out the ar header. */
6164 amt = sizeof (struct ar_hdr);
6165 if (bfd_bwrite ((void *) &hdr, amt, abfd) != amt)
6168 /* Now scribble out the lst header. */
6169 amt = sizeof (struct lst_header);
6170 if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
6173 /* Build and write the armap. */
6174 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6181 /* Free all information we have cached for this BFD. We can always
6182 read it again later if we need it. */
6185 som_bfd_free_cached_info (bfd *abfd)
6189 if (bfd_get_format (abfd) != bfd_object)
6192 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6193 /* Free the native string and symbol tables. */
6194 FREE (obj_som_symtab (abfd));
6195 FREE (obj_som_stringtab (abfd));
6196 for (o = abfd->sections; o != NULL; o = o->next)
6198 /* Free the native relocations. */
6199 o->reloc_count = (unsigned) -1;
6200 FREE (som_section_data (o)->reloc_stream);
6201 /* Free the generic relocations. */
6202 FREE (o->relocation);
6209 /* End of miscellaneous support functions. */
6211 /* Linker support functions. */
6214 som_bfd_link_split_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
6216 return som_is_subspace (sec) && sec->size > 240000;
6219 #define som_close_and_cleanup som_bfd_free_cached_info
6220 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6221 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6222 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6223 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6224 #define som_truncate_arname bfd_bsd_truncate_arname
6225 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6226 #define som_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
6227 #define som_update_armap_timestamp bfd_true
6228 #define som_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
6229 #define som_get_lineno _bfd_nosymbols_get_lineno
6230 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6231 #define som_read_minisymbols _bfd_generic_read_minisymbols
6232 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6233 #define som_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
6234 #define som_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
6235 #define som_bfd_relax_section bfd_generic_relax_section
6236 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6237 #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6238 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6239 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6240 #define som_bfd_final_link _bfd_generic_final_link
6241 #define som_bfd_gc_sections bfd_generic_gc_sections
6242 #define som_bfd_merge_sections bfd_generic_merge_sections
6243 #define som_bfd_is_group_section bfd_generic_is_group_section
6244 #define som_bfd_discard_group bfd_generic_discard_group
6245 #define som_section_already_linked _bfd_generic_section_already_linked
6246 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
6247 #define som_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
6248 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
6249 #define som_find_inliner_info _bfd_nosymbols_find_inliner_info
6251 const bfd_target som_vec =
6254 bfd_target_som_flavour,
6255 BFD_ENDIAN_BIG, /* Target byte order. */
6256 BFD_ENDIAN_BIG, /* Target headers byte order. */
6257 (HAS_RELOC | EXEC_P | /* Object flags. */
6258 HAS_LINENO | HAS_DEBUG |
6259 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6260 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
6261 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
6263 /* Leading_symbol_char: is the first char of a user symbol
6264 predictable, and if so what is it. */
6266 '/', /* AR_pad_char. */
6267 14, /* AR_max_namelen. */
6268 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6269 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6270 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
6271 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6272 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6273 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
6275 som_object_p, /* bfd_check_format. */
6276 bfd_generic_archive_p,
6282 _bfd_generic_mkarchive,
6287 som_write_object_contents,
6288 _bfd_write_archive_contents,
6293 BFD_JUMP_TABLE_GENERIC (som),
6294 BFD_JUMP_TABLE_COPY (som),
6295 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6296 BFD_JUMP_TABLE_ARCHIVE (som),
6297 BFD_JUMP_TABLE_SYMBOLS (som),
6298 BFD_JUMP_TABLE_RELOCS (som),
6299 BFD_JUMP_TABLE_WRITE (som),
6300 BFD_JUMP_TABLE_LINK (som),
6301 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6308 #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */