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, 2006, 2007, 2008, 2009, 2010, 2011
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 3 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"
32 #include "safe-ctype.h"
33 #include "som/reloc.h"
36 static bfd_reloc_status_type hppa_som_reloc
37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
38 static bfd_boolean som_mkobject (bfd *);
39 static bfd_boolean som_is_space (asection *);
40 static bfd_boolean som_is_subspace (asection *);
41 static int compare_subspaces (const void *, const void *);
42 static unsigned long som_compute_checksum (struct som_external_header *);
43 static bfd_boolean som_build_and_write_symbol_table (bfd *);
44 static unsigned int som_slurp_symbol_table (bfd *);
46 /* Magic not defined in standard HP-UX header files until 8.0. */
48 #ifndef CPU_PA_RISC1_0
49 #define CPU_PA_RISC1_0 0x20B
50 #endif /* CPU_PA_RISC1_0 */
52 #ifndef CPU_PA_RISC1_1
53 #define CPU_PA_RISC1_1 0x210
54 #endif /* CPU_PA_RISC1_1 */
56 #ifndef CPU_PA_RISC2_0
57 #define CPU_PA_RISC2_0 0x214
58 #endif /* CPU_PA_RISC2_0 */
60 #ifndef _PA_RISC1_0_ID
61 #define _PA_RISC1_0_ID CPU_PA_RISC1_0
62 #endif /* _PA_RISC1_0_ID */
64 #ifndef _PA_RISC1_1_ID
65 #define _PA_RISC1_1_ID CPU_PA_RISC1_1
66 #endif /* _PA_RISC1_1_ID */
68 #ifndef _PA_RISC2_0_ID
69 #define _PA_RISC2_0_ID CPU_PA_RISC2_0
70 #endif /* _PA_RISC2_0_ID */
72 #ifndef _PA_RISC_MAXID
73 #define _PA_RISC_MAXID 0x2FF
74 #endif /* _PA_RISC_MAXID */
77 #define _PA_RISC_ID(__m_num) \
78 (((__m_num) == _PA_RISC1_0_ID) || \
79 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
80 #endif /* _PA_RISC_ID */
82 /* HIUX in it's infinite stupidity changed the names for several "well
83 known" constants. Work around such braindamage. Try the HPUX version
84 first, then the HIUX version, and finally provide a default. */
86 #define EXEC_AUX_ID HPUX_AUX_ID
89 #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
90 #define EXEC_AUX_ID HIUX_AUX_ID
97 /* Size (in chars) of the temporary buffers used during fixup and string
100 #define SOM_TMP_BUFSIZE 8192
102 /* Size of the hash table in archives. */
103 #define SOM_LST_HASH_SIZE 31
105 /* Max number of SOMs to be found in an archive. */
106 #define SOM_LST_MODULE_LIMIT 1024
108 /* Generic alignment macro. */
109 #define SOM_ALIGN(val, alignment) \
110 (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1))
112 /* SOM allows any one of the four previous relocations to be reused
113 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
114 relocations are always a single byte, using a R_PREV_FIXUP instead
115 of some multi-byte relocation makes object files smaller.
117 Note one side effect of using a R_PREV_FIXUP is the relocation that
118 is being repeated moves to the front of the queue. */
121 unsigned char *reloc;
125 /* This fully describes the symbol types which may be attached to
126 an EXPORT or IMPORT directive. Only SOM uses this formation
127 (ELF has no need for it). */
131 SYMBOL_TYPE_ABSOLUTE,
135 SYMBOL_TYPE_MILLICODE,
137 SYMBOL_TYPE_PRI_PROG,
138 SYMBOL_TYPE_SEC_PROG,
141 struct section_to_type
147 /* Assorted symbol information that needs to be derived from the BFD symbol
148 and/or the BFD backend private symbol data. */
149 struct som_misc_symbol_info
151 unsigned int symbol_type;
152 unsigned int symbol_scope;
153 unsigned int arg_reloc;
154 unsigned int symbol_info;
155 unsigned int symbol_value;
156 unsigned int priv_level;
157 unsigned int secondary_def;
158 unsigned int is_comdat;
159 unsigned int is_common;
160 unsigned int dup_common;
163 /* Map SOM section names to POSIX/BSD single-character symbol types.
165 This table includes all the standard subspaces as defined in the
166 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
167 some reason was left out, and sections specific to embedded stabs. */
169 static const struct section_to_type stt[] =
172 {"$SHLIB_INFO$", 't'},
173 {"$MILLICODE$", 't'},
176 {"$UNWIND_START$", 't'},
180 {"$SHLIB_DATA$", 'd'},
182 {"$SHORTDATA$", 'g'},
187 {"$GDB_STRINGS$", 'N'},
188 {"$GDB_SYMBOLS$", 'N'},
192 /* About the relocation formatting table...
194 There are 256 entries in the table, one for each possible
195 relocation opcode available in SOM. We index the table by
196 the relocation opcode. The names and operations are those
197 defined by a.out_800 (4).
199 Right now this table is only used to count and perform minimal
200 processing on relocation streams so that they can be internalized
201 into BFD and symbolically printed by utilities. To make actual use
202 of them would be much more difficult, BFD's concept of relocations
203 is far too simple to handle SOM relocations. The basic assumption
204 that a relocation can be completely processed independent of other
205 relocations before an object file is written is invalid for SOM.
207 The SOM relocations are meant to be processed as a stream, they
208 specify copying of data from the input section to the output section
209 while possibly modifying the data in some manner. They also can
210 specify that a variable number of zeros or uninitialized data be
211 inserted on in the output segment at the current offset. Some
212 relocations specify that some previous relocation be re-applied at
213 the current location in the input/output sections. And finally a number
214 of relocations have effects on other sections (R_ENTRY, R_EXIT,
215 R_UNWIND_AUX and a variety of others). There isn't even enough room
216 in the BFD relocation data structure to store enough information to
217 perform all the relocations.
219 Each entry in the table has three fields.
221 The first entry is an index into this "class" of relocations. This
222 index can then be used as a variable within the relocation itself.
224 The second field is a format string which actually controls processing
225 of the relocation. It uses a simple postfix machine to do calculations
226 based on variables/constants found in the string and the relocation
229 The third field specifys whether or not this relocation may use
230 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
231 stored in the instruction.
235 L = input space byte count
236 D = index into class of relocations
237 M = output space byte count
238 N = statement number (unused?)
240 R = parameter relocation bits
242 T = first 32 bits of stack unwind information
243 U = second 32 bits of stack unwind information
244 V = a literal constant (usually used in the next relocation)
245 P = a previous relocation
247 Lower case letters (starting with 'b') refer to following
248 bytes in the relocation stream. 'b' is the next 1 byte,
249 c is the next 2 bytes, d is the next 3 bytes, etc...
250 This is the variable part of the relocation entries that
251 makes our life a living hell.
253 numerical constants are also used in the format string. Note
254 the constants are represented in decimal.
256 '+', "*" and "=" represents the obvious postfix operators.
257 '<' represents a left shift.
261 Parameter Relocation Bits:
265 Previous Relocations: The index field represents which in the queue
266 of 4 previous fixups should be re-applied.
268 Literal Constants: These are generally used to represent addend
269 parts of relocations when these constants are not stored in the
270 fields of the instructions themselves. For example the instruction
271 addil foo-$global$-0x1234 would use an override for "0x1234" rather
272 than storing it into the addil itself. */
280 static const struct fixup_format som_fixup_formats[256] =
282 /* R_NO_RELOCATION. */
283 { 0, "LD1+4*=" }, /* 0x00 */
284 { 1, "LD1+4*=" }, /* 0x01 */
285 { 2, "LD1+4*=" }, /* 0x02 */
286 { 3, "LD1+4*=" }, /* 0x03 */
287 { 4, "LD1+4*=" }, /* 0x04 */
288 { 5, "LD1+4*=" }, /* 0x05 */
289 { 6, "LD1+4*=" }, /* 0x06 */
290 { 7, "LD1+4*=" }, /* 0x07 */
291 { 8, "LD1+4*=" }, /* 0x08 */
292 { 9, "LD1+4*=" }, /* 0x09 */
293 { 10, "LD1+4*=" }, /* 0x0a */
294 { 11, "LD1+4*=" }, /* 0x0b */
295 { 12, "LD1+4*=" }, /* 0x0c */
296 { 13, "LD1+4*=" }, /* 0x0d */
297 { 14, "LD1+4*=" }, /* 0x0e */
298 { 15, "LD1+4*=" }, /* 0x0f */
299 { 16, "LD1+4*=" }, /* 0x10 */
300 { 17, "LD1+4*=" }, /* 0x11 */
301 { 18, "LD1+4*=" }, /* 0x12 */
302 { 19, "LD1+4*=" }, /* 0x13 */
303 { 20, "LD1+4*=" }, /* 0x14 */
304 { 21, "LD1+4*=" }, /* 0x15 */
305 { 22, "LD1+4*=" }, /* 0x16 */
306 { 23, "LD1+4*=" }, /* 0x17 */
307 { 0, "LD8<b+1+4*=" }, /* 0x18 */
308 { 1, "LD8<b+1+4*=" }, /* 0x19 */
309 { 2, "LD8<b+1+4*=" }, /* 0x1a */
310 { 3, "LD8<b+1+4*=" }, /* 0x1b */
311 { 0, "LD16<c+1+4*=" }, /* 0x1c */
312 { 1, "LD16<c+1+4*=" }, /* 0x1d */
313 { 2, "LD16<c+1+4*=" }, /* 0x1e */
314 { 0, "Ld1+=" }, /* 0x1f */
316 { 0, "Lb1+4*=" }, /* 0x20 */
317 { 1, "Ld1+=" }, /* 0x21 */
319 { 0, "Lb1+4*=" }, /* 0x22 */
320 { 1, "Ld1+=" }, /* 0x23 */
322 { 0, "L4=" }, /* 0x24 */
323 /* R_DATA_ONE_SYMBOL. */
324 { 0, "L4=Sb=" }, /* 0x25 */
325 { 1, "L4=Sd=" }, /* 0x26 */
327 { 0, "L4=Sb=" }, /* 0x27 */
328 { 1, "L4=Sd=" }, /* 0x28 */
330 { 0, "L4=" }, /* 0x29 */
331 /* R_REPEATED_INIT. */
332 { 0, "L4=Mb1+4*=" }, /* 0x2a */
333 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
334 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
335 { 3, "Ld1+=Me1+=" }, /* 0x2d */
336 { 0, "" }, /* 0x2e */
337 { 0, "" }, /* 0x2f */
339 { 0, "L4=RD=Sb=" }, /* 0x30 */
340 { 1, "L4=RD=Sb=" }, /* 0x31 */
341 { 2, "L4=RD=Sb=" }, /* 0x32 */
342 { 3, "L4=RD=Sb=" }, /* 0x33 */
343 { 4, "L4=RD=Sb=" }, /* 0x34 */
344 { 5, "L4=RD=Sb=" }, /* 0x35 */
345 { 6, "L4=RD=Sb=" }, /* 0x36 */
346 { 7, "L4=RD=Sb=" }, /* 0x37 */
347 { 8, "L4=RD=Sb=" }, /* 0x38 */
348 { 9, "L4=RD=Sb=" }, /* 0x39 */
349 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
350 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
351 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
352 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
353 /* R_SHORT_PCREL_MODE. */
354 { 0, "" }, /* 0x3e */
355 /* R_LONG_PCREL_MODE. */
356 { 0, "" }, /* 0x3f */
358 { 0, "L4=RD=Sb=" }, /* 0x40 */
359 { 1, "L4=RD=Sb=" }, /* 0x41 */
360 { 2, "L4=RD=Sb=" }, /* 0x42 */
361 { 3, "L4=RD=Sb=" }, /* 0x43 */
362 { 4, "L4=RD=Sb=" }, /* 0x44 */
363 { 5, "L4=RD=Sb=" }, /* 0x45 */
364 { 6, "L4=RD=Sb=" }, /* 0x46 */
365 { 7, "L4=RD=Sb=" }, /* 0x47 */
366 { 8, "L4=RD=Sb=" }, /* 0x48 */
367 { 9, "L4=RD=Sb=" }, /* 0x49 */
368 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
369 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
370 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
371 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
373 { 0, "" }, /* 0x4e */
374 { 0, "" }, /* 0x4f */
376 { 0, "L4=SD=" }, /* 0x50 */
377 { 1, "L4=SD=" }, /* 0x51 */
378 { 2, "L4=SD=" }, /* 0x52 */
379 { 3, "L4=SD=" }, /* 0x53 */
380 { 4, "L4=SD=" }, /* 0x54 */
381 { 5, "L4=SD=" }, /* 0x55 */
382 { 6, "L4=SD=" }, /* 0x56 */
383 { 7, "L4=SD=" }, /* 0x57 */
384 { 8, "L4=SD=" }, /* 0x58 */
385 { 9, "L4=SD=" }, /* 0x59 */
386 { 10, "L4=SD=" }, /* 0x5a */
387 { 11, "L4=SD=" }, /* 0x5b */
388 { 12, "L4=SD=" }, /* 0x5c */
389 { 13, "L4=SD=" }, /* 0x5d */
390 { 14, "L4=SD=" }, /* 0x5e */
391 { 15, "L4=SD=" }, /* 0x5f */
392 { 16, "L4=SD=" }, /* 0x60 */
393 { 17, "L4=SD=" }, /* 0x61 */
394 { 18, "L4=SD=" }, /* 0x62 */
395 { 19, "L4=SD=" }, /* 0x63 */
396 { 20, "L4=SD=" }, /* 0x64 */
397 { 21, "L4=SD=" }, /* 0x65 */
398 { 22, "L4=SD=" }, /* 0x66 */
399 { 23, "L4=SD=" }, /* 0x67 */
400 { 24, "L4=SD=" }, /* 0x68 */
401 { 25, "L4=SD=" }, /* 0x69 */
402 { 26, "L4=SD=" }, /* 0x6a */
403 { 27, "L4=SD=" }, /* 0x6b */
404 { 28, "L4=SD=" }, /* 0x6c */
405 { 29, "L4=SD=" }, /* 0x6d */
406 { 30, "L4=SD=" }, /* 0x6e */
407 { 31, "L4=SD=" }, /* 0x6f */
408 { 32, "L4=Sb=" }, /* 0x70 */
409 { 33, "L4=Sd=" }, /* 0x71 */
411 { 0, "L4=Sd=" }, /* 0x72 */
413 { 0, "" }, /* 0x73 */
414 { 0, "" }, /* 0x74 */
415 { 0, "" }, /* 0x75 */
416 { 0, "" }, /* 0x76 */
417 { 0, "" }, /* 0x77 */
419 { 0, "L4=Sb=" }, /* 0x78 */
420 { 1, "L4=Sd=" }, /* 0x79 */
422 { 0, "" }, /* 0x7a */
423 { 0, "" }, /* 0x7b */
424 { 0, "" }, /* 0x7c */
425 { 0, "" }, /* 0x7d */
426 { 0, "" }, /* 0x7e */
427 { 0, "" }, /* 0x7f */
428 /* R_CODE_ONE_SYMBOL. */
429 { 0, "L4=SD=" }, /* 0x80 */
430 { 1, "L4=SD=" }, /* 0x81 */
431 { 2, "L4=SD=" }, /* 0x82 */
432 { 3, "L4=SD=" }, /* 0x83 */
433 { 4, "L4=SD=" }, /* 0x84 */
434 { 5, "L4=SD=" }, /* 0x85 */
435 { 6, "L4=SD=" }, /* 0x86 */
436 { 7, "L4=SD=" }, /* 0x87 */
437 { 8, "L4=SD=" }, /* 0x88 */
438 { 9, "L4=SD=" }, /* 0x89 */
439 { 10, "L4=SD=" }, /* 0x8q */
440 { 11, "L4=SD=" }, /* 0x8b */
441 { 12, "L4=SD=" }, /* 0x8c */
442 { 13, "L4=SD=" }, /* 0x8d */
443 { 14, "L4=SD=" }, /* 0x8e */
444 { 15, "L4=SD=" }, /* 0x8f */
445 { 16, "L4=SD=" }, /* 0x90 */
446 { 17, "L4=SD=" }, /* 0x91 */
447 { 18, "L4=SD=" }, /* 0x92 */
448 { 19, "L4=SD=" }, /* 0x93 */
449 { 20, "L4=SD=" }, /* 0x94 */
450 { 21, "L4=SD=" }, /* 0x95 */
451 { 22, "L4=SD=" }, /* 0x96 */
452 { 23, "L4=SD=" }, /* 0x97 */
453 { 24, "L4=SD=" }, /* 0x98 */
454 { 25, "L4=SD=" }, /* 0x99 */
455 { 26, "L4=SD=" }, /* 0x9a */
456 { 27, "L4=SD=" }, /* 0x9b */
457 { 28, "L4=SD=" }, /* 0x9c */
458 { 29, "L4=SD=" }, /* 0x9d */
459 { 30, "L4=SD=" }, /* 0x9e */
460 { 31, "L4=SD=" }, /* 0x9f */
461 { 32, "L4=Sb=" }, /* 0xa0 */
462 { 33, "L4=Sd=" }, /* 0xa1 */
464 { 0, "" }, /* 0xa2 */
465 { 0, "" }, /* 0xa3 */
466 { 0, "" }, /* 0xa4 */
467 { 0, "" }, /* 0xa5 */
468 { 0, "" }, /* 0xa6 */
469 { 0, "" }, /* 0xa7 */
470 { 0, "" }, /* 0xa8 */
471 { 0, "" }, /* 0xa9 */
472 { 0, "" }, /* 0xaa */
473 { 0, "" }, /* 0xab */
474 { 0, "" }, /* 0xac */
475 { 0, "" }, /* 0xad */
477 { 0, "L4=Sb=" }, /* 0xae */
478 { 1, "L4=Sd=" }, /* 0xaf */
480 { 0, "L4=Sb=" }, /* 0xb0 */
481 { 1, "L4=Sd=" }, /* 0xb1 */
483 { 0, "L4=" }, /* 0xb2 */
485 { 0, "Te=Ue=" }, /* 0xb3 */
486 { 1, "Uf=" }, /* 0xb4 */
488 { 0, "" }, /* 0xb5 */
490 { 0, "" }, /* 0xb6 */
492 { 0, "" }, /* 0xb7 */
494 { 0, "R0=" }, /* 0xb8 */
495 { 1, "Rb4*=" }, /* 0xb9 */
496 { 2, "Rd4*=" }, /* 0xba */
498 { 0, "" }, /* 0xbb */
500 { 0, "" }, /* 0xbc */
502 { 0, "Nb=" }, /* 0xbd */
503 { 1, "Nc=" }, /* 0xbe */
504 { 2, "Nd=" }, /* 0xbf */
506 { 0, "L4=" }, /* 0xc0 */
508 { 0, "L4=" }, /* 0xc1 */
510 { 0, "" }, /* 0xc2 */
512 { 0, "" }, /* 0xc3 */
514 { 0, "" }, /* 0xc4 */
516 { 0, "" }, /* 0xc5 */
518 { 0, "" }, /* 0xc6 */
520 { 0, "" }, /* 0xc7 */
522 { 0, "" }, /* 0xc8 */
523 /* R_DATA_OVERRIDE. */
524 { 0, "V0=" }, /* 0xc9 */
525 { 1, "Vb=" }, /* 0xca */
526 { 2, "Vc=" }, /* 0xcb */
527 { 3, "Vd=" }, /* 0xcc */
528 { 4, "Ve=" }, /* 0xcd */
530 { 0, "" }, /* 0xce */
532 { 0,"Sd=Ve=Ee=" }, /* 0xcf */
534 { 0, "Ob=" }, /* 0xd0 */
536 { 0, "Ob=Sd=" }, /* 0xd1 */
538 { 0, "Ob=Ve=" }, /* 0xd2 */
540 { 0, "P" }, /* 0xd3 */
541 { 1, "P" }, /* 0xd4 */
542 { 2, "P" }, /* 0xd5 */
543 { 3, "P" }, /* 0xd6 */
545 { 0, "" }, /* 0xd7 */
547 { 0, "" }, /* 0xd8 */
549 { 0, "" }, /* 0xd9 */
551 { 0, "Eb=Sd=Ve=" }, /* 0xda */
553 { 0, "Eb=Mb=" }, /* 0xdb */
554 /* R_LTP_OVERRIDE. */
555 { 0, "" }, /* 0xdc */
557 { 0, "Ob=Vf=" }, /* 0xdd */
559 { 0, "" }, /* 0xde */
560 { 0, "" }, /* 0xdf */
561 { 0, "" }, /* 0xe0 */
562 { 0, "" }, /* 0xe1 */
563 { 0, "" }, /* 0xe2 */
564 { 0, "" }, /* 0xe3 */
565 { 0, "" }, /* 0xe4 */
566 { 0, "" }, /* 0xe5 */
567 { 0, "" }, /* 0xe6 */
568 { 0, "" }, /* 0xe7 */
569 { 0, "" }, /* 0xe8 */
570 { 0, "" }, /* 0xe9 */
571 { 0, "" }, /* 0xea */
572 { 0, "" }, /* 0xeb */
573 { 0, "" }, /* 0xec */
574 { 0, "" }, /* 0xed */
575 { 0, "" }, /* 0xee */
576 { 0, "" }, /* 0xef */
577 { 0, "" }, /* 0xf0 */
578 { 0, "" }, /* 0xf1 */
579 { 0, "" }, /* 0xf2 */
580 { 0, "" }, /* 0xf3 */
581 { 0, "" }, /* 0xf4 */
582 { 0, "" }, /* 0xf5 */
583 { 0, "" }, /* 0xf6 */
584 { 0, "" }, /* 0xf7 */
585 { 0, "" }, /* 0xf8 */
586 { 0, "" }, /* 0xf9 */
587 { 0, "" }, /* 0xfa */
588 { 0, "" }, /* 0xfb */
589 { 0, "" }, /* 0xfc */
590 { 0, "" }, /* 0xfd */
591 { 0, "" }, /* 0xfe */
592 { 0, "" }, /* 0xff */
595 static const int comp1_opcodes[] =
617 static const int comp2_opcodes[] =
626 static const int comp3_opcodes[] =
633 /* These apparently are not in older versions of hpux reloc.h (hpux7). */
635 /* And these first appeared in hpux10. */
636 #ifndef R_SHORT_PCREL_MODE
637 #define NO_PCREL_MODES
638 #define R_SHORT_PCREL_MODE 0x3e
641 #define SOM_HOWTO(TYPE, NAME) \
642 HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
644 static reloc_howto_type som_hppa_howto_table[] =
646 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
647 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
648 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
649 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
650 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
651 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
652 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
653 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
654 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
655 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
656 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
657 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
658 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
659 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
660 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
661 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
662 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
663 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
664 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
665 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
666 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
667 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
668 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
669 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
670 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
671 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
672 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
673 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
674 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
675 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
676 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
677 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
678 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
679 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
680 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
681 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
682 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
683 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
684 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
685 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
686 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
687 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
688 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
689 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
690 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
691 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
692 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
693 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
694 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
695 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
696 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
697 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
698 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
699 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
700 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
701 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
702 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
703 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
704 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
705 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
706 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
707 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
708 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
709 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
710 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
711 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
712 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
713 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
714 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
715 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
716 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
717 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
718 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
719 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
720 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
721 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
722 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
723 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
724 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
725 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
726 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
727 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
728 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
729 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
730 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
731 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
732 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
733 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
734 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
735 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
736 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
737 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
738 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
739 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
740 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
741 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
742 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
743 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
744 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
745 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
746 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
747 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
748 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
749 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
750 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
751 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
752 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
753 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
754 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
755 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
756 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
757 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
758 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
759 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
760 SOM_HOWTO (R_DATA_GPREL, "R_DATA_GPREL"),
761 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
762 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
763 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
764 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
765 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
766 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
767 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
768 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
769 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
770 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
771 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
772 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
773 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
774 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
775 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
776 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
777 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
778 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
779 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
780 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
781 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
782 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
783 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
784 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
785 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
786 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
787 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
788 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
789 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
790 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
791 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
792 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
793 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
794 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
795 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
796 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
797 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
798 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
799 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
800 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
801 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
802 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
803 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
804 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
805 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
806 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
807 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
808 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
809 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
810 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
811 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
812 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
813 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
814 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
815 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
816 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
817 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
818 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
819 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
820 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
821 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
822 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
823 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
824 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
825 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
826 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
827 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
828 SOM_HOWTO (R_EXIT, "R_EXIT"),
829 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
830 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
831 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
832 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
833 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
834 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
835 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
836 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
837 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
838 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
839 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
840 SOM_HOWTO (R_FSEL, "R_FSEL"),
841 SOM_HOWTO (R_LSEL, "R_LSEL"),
842 SOM_HOWTO (R_RSEL, "R_RSEL"),
843 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
844 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
845 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
846 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
847 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
848 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
849 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
850 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
851 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
852 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
853 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
854 SOM_HOWTO (R_COMP1, "R_COMP1"),
855 SOM_HOWTO (R_COMP2, "R_COMP2"),
856 SOM_HOWTO (R_COMP3, "R_COMP3"),
857 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
858 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
859 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
860 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
861 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
862 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
863 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
864 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
865 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
866 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
867 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
868 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
869 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
870 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
871 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
872 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
873 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
874 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
875 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
876 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
877 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
878 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
879 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
880 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
881 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
882 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
883 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
884 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
885 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
886 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
887 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
888 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
889 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
890 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
891 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
892 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
893 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
894 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
895 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
896 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
897 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
898 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
899 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
900 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
901 SOM_HOWTO (R_RESERVED, "R_RESERVED")
904 /* Initialize the SOM relocation queue. By definition the queue holds
905 the last four multibyte fixups. */
908 som_initialize_reloc_queue (struct reloc_queue *queue)
910 queue[0].reloc = NULL;
912 queue[1].reloc = NULL;
914 queue[2].reloc = NULL;
916 queue[3].reloc = NULL;
920 /* Insert a new relocation into the relocation queue. */
923 som_reloc_queue_insert (unsigned char *p,
925 struct reloc_queue *queue)
927 queue[3].reloc = queue[2].reloc;
928 queue[3].size = queue[2].size;
929 queue[2].reloc = queue[1].reloc;
930 queue[2].size = queue[1].size;
931 queue[1].reloc = queue[0].reloc;
932 queue[1].size = queue[0].size;
934 queue[0].size = size;
937 /* When an entry in the relocation queue is reused, the entry moves
938 to the front of the queue. */
941 som_reloc_queue_fix (struct reloc_queue *queue, unsigned int idx)
948 unsigned char *tmp1 = queue[0].reloc;
949 unsigned int tmp2 = queue[0].size;
951 queue[0].reloc = queue[1].reloc;
952 queue[0].size = queue[1].size;
953 queue[1].reloc = tmp1;
954 queue[1].size = tmp2;
960 unsigned char *tmp1 = queue[0].reloc;
961 unsigned int tmp2 = queue[0].size;
963 queue[0].reloc = queue[2].reloc;
964 queue[0].size = queue[2].size;
965 queue[2].reloc = queue[1].reloc;
966 queue[2].size = queue[1].size;
967 queue[1].reloc = tmp1;
968 queue[1].size = tmp2;
974 unsigned char *tmp1 = queue[0].reloc;
975 unsigned int tmp2 = queue[0].size;
977 queue[0].reloc = queue[3].reloc;
978 queue[0].size = queue[3].size;
979 queue[3].reloc = queue[2].reloc;
980 queue[3].size = queue[2].size;
981 queue[2].reloc = queue[1].reloc;
982 queue[2].size = queue[1].size;
983 queue[1].reloc = tmp1;
984 queue[1].size = tmp2;
990 /* Search for a particular relocation in the relocation queue. */
993 som_reloc_queue_find (unsigned char *p,
995 struct reloc_queue *queue)
997 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
998 && size == queue[0].size)
1000 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
1001 && size == queue[1].size)
1003 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1004 && size == queue[2].size)
1006 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1007 && size == queue[3].size)
1012 static unsigned char *
1013 try_prev_fixup (bfd *abfd ATTRIBUTE_UNUSED,
1014 unsigned int *subspace_reloc_sizep,
1017 struct reloc_queue *queue)
1019 int queue_index = som_reloc_queue_find (p, size, queue);
1021 if (queue_index != -1)
1023 /* Found this in a previous fixup. Undo the fixup we
1024 just built and use R_PREV_FIXUP instead. We saved
1025 a total of size - 1 bytes in the fixup stream. */
1026 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1028 *subspace_reloc_sizep += 1;
1029 som_reloc_queue_fix (queue, queue_index);
1033 som_reloc_queue_insert (p, size, queue);
1034 *subspace_reloc_sizep += size;
1040 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1041 bytes without any relocation. Update the size of the subspace
1042 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
1043 current pointer into the relocation stream. */
1045 static unsigned char *
1046 som_reloc_skip (bfd *abfd,
1049 unsigned int *subspace_reloc_sizep,
1050 struct reloc_queue *queue)
1052 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1053 then R_PREV_FIXUPs to get the difference down to a
1055 if (skip >= 0x1000000)
1058 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1059 bfd_put_8 (abfd, 0xff, p + 1);
1060 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
1061 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1062 while (skip >= 0x1000000)
1065 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1067 *subspace_reloc_sizep += 1;
1068 /* No need to adjust queue here since we are repeating the
1069 most recent fixup. */
1073 /* The difference must be less than 0x1000000. Use one
1074 more R_NO_RELOCATION entry to get to the right difference. */
1075 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1077 /* Difference can be handled in a simple single-byte
1078 R_NO_RELOCATION entry. */
1081 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1082 *subspace_reloc_sizep += 1;
1085 /* Handle it with a two byte R_NO_RELOCATION entry. */
1086 else if (skip <= 0x1000)
1088 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1089 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1090 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1092 /* Handle it with a three byte R_NO_RELOCATION entry. */
1095 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
1096 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
1097 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1100 /* Ugh. Punt and use a 4 byte entry. */
1103 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1104 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
1105 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
1106 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1111 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1112 from a BFD relocation. Update the size of the subspace relocation
1113 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1114 into the relocation stream. */
1116 static unsigned char *
1117 som_reloc_addend (bfd *abfd,
1120 unsigned int *subspace_reloc_sizep,
1121 struct reloc_queue *queue)
1123 if (addend + 0x80 < 0x100)
1125 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1126 bfd_put_8 (abfd, addend, p + 1);
1127 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1129 else if (addend + 0x8000 < 0x10000)
1131 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1132 bfd_put_16 (abfd, addend, p + 1);
1133 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1135 else if (addend + 0x800000 < 0x1000000)
1137 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1138 bfd_put_8 (abfd, addend >> 16, p + 1);
1139 bfd_put_16 (abfd, addend, p + 2);
1140 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1144 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1145 bfd_put_32 (abfd, addend, p + 1);
1146 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1151 /* Handle a single function call relocation. */
1153 static unsigned char *
1154 som_reloc_call (bfd *abfd,
1156 unsigned int *subspace_reloc_sizep,
1159 struct reloc_queue *queue)
1161 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1162 int rtn_bits = arg_bits & 0x3;
1165 /* You'll never believe all this is necessary to handle relocations
1166 for function calls. Having to compute and pack the argument
1167 relocation bits is the real nightmare.
1169 If you're interested in how this works, just forget it. You really
1170 do not want to know about this braindamage. */
1172 /* First see if this can be done with a "simple" relocation. Simple
1173 relocations have a symbol number < 0x100 and have simple encodings
1174 of argument relocations. */
1176 if (sym_num < 0x100)
1188 case 1 << 8 | 1 << 6:
1189 case 1 << 8 | 1 << 6 | 1:
1192 case 1 << 8 | 1 << 6 | 1 << 4:
1193 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1196 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1197 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1201 /* Not one of the easy encodings. This will have to be
1202 handled by the more complex code below. */
1208 /* Account for the return value too. */
1212 /* Emit a 2 byte relocation. Then see if it can be handled
1213 with a relocation which is already in the relocation queue. */
1214 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1215 bfd_put_8 (abfd, sym_num, p + 1);
1216 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1221 /* If this could not be handled with a simple relocation, then do a hard
1222 one. Hard relocations occur if the symbol number was too high or if
1223 the encoding of argument relocation bits is too complex. */
1226 /* Don't ask about these magic sequences. I took them straight
1227 from gas-1.36 which took them from the a.out man page. */
1229 if ((arg_bits >> 6 & 0xf) == 0xe)
1232 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1233 if ((arg_bits >> 2 & 0xf) == 0xe)
1236 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
1238 /* Output the first two bytes of the relocation. These describe
1239 the length of the relocation and encoding style. */
1240 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1241 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1243 bfd_put_8 (abfd, type, p + 1);
1245 /* Now output the symbol index and see if this bizarre relocation
1246 just happened to be in the relocation queue. */
1247 if (sym_num < 0x100)
1249 bfd_put_8 (abfd, sym_num, p + 2);
1250 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1254 bfd_put_8 (abfd, sym_num >> 16, p + 2);
1255 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
1256 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1262 /* Return the logarithm of X, base 2, considering X unsigned,
1263 if X is a power of 2. Otherwise, returns -1. */
1266 exact_log2 (unsigned int x)
1270 /* Test for 0 or a power of 2. */
1271 if (x == 0 || x != (x & -x))
1274 while ((x >>= 1) != 0)
1279 static bfd_reloc_status_type
1280 hppa_som_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1281 arelent *reloc_entry,
1282 asymbol *symbol_in ATTRIBUTE_UNUSED,
1283 void *data ATTRIBUTE_UNUSED,
1284 asection *input_section,
1286 char **error_message ATTRIBUTE_UNUSED)
1289 reloc_entry->address += input_section->output_offset;
1291 return bfd_reloc_ok;
1294 /* Given a generic HPPA relocation type, the instruction format,
1295 and a field selector, return one or more appropriate SOM relocations. */
1298 hppa_som_gen_reloc_type (bfd *abfd,
1301 enum hppa_reloc_field_selector_type_alt field,
1305 int *final_type, **final_types;
1307 final_types = bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1308 final_type = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1309 if (!final_types || !final_type)
1312 /* The field selector may require additional relocations to be
1313 generated. It's impossible to know at this moment if additional
1314 relocations will be needed, so we make them. The code to actually
1315 write the relocation/fixup stream is responsible for removing
1316 any redundant relocations. */
1323 final_types[0] = final_type;
1324 final_types[1] = NULL;
1325 final_types[2] = NULL;
1326 *final_type = base_type;
1332 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1333 if (!final_types[0])
1335 if (field == e_tsel)
1336 *final_types[0] = R_FSEL;
1337 else if (field == e_ltsel)
1338 *final_types[0] = R_LSEL;
1340 *final_types[0] = R_RSEL;
1341 final_types[1] = final_type;
1342 final_types[2] = NULL;
1343 *final_type = base_type;
1348 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1349 if (!final_types[0])
1351 *final_types[0] = R_S_MODE;
1352 final_types[1] = final_type;
1353 final_types[2] = NULL;
1354 *final_type = base_type;
1359 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1360 if (!final_types[0])
1362 *final_types[0] = R_N_MODE;
1363 final_types[1] = final_type;
1364 final_types[2] = NULL;
1365 *final_type = base_type;
1370 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1371 if (!final_types[0])
1373 *final_types[0] = R_D_MODE;
1374 final_types[1] = final_type;
1375 final_types[2] = NULL;
1376 *final_type = base_type;
1381 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1382 if (!final_types[0])
1384 *final_types[0] = R_R_MODE;
1385 final_types[1] = final_type;
1386 final_types[2] = NULL;
1387 *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_N1SEL;
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_N0SEL;
1406 final_types[1] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1407 if (!final_types[1])
1409 if (field == e_nlsel)
1410 *final_types[1] = R_N_MODE;
1412 *final_types[1] = R_R_MODE;
1413 final_types[2] = final_type;
1414 final_types[3] = NULL;
1415 *final_type = base_type;
1418 /* FIXME: These two field selectors are not currently supported. */
1427 /* The difference of two symbols needs *very* special handling. */
1430 bfd_size_type amt = sizeof (int);
1432 final_types[0] = bfd_alloc (abfd, amt);
1433 final_types[1] = bfd_alloc (abfd, amt);
1434 final_types[2] = bfd_alloc (abfd, amt);
1435 final_types[3] = bfd_alloc (abfd, amt);
1436 if (!final_types[0] || !final_types[1] || !final_types[2])
1438 if (field == e_fsel)
1439 *final_types[0] = R_FSEL;
1440 else if (field == e_rsel)
1441 *final_types[0] = R_RSEL;
1442 else if (field == e_lsel)
1443 *final_types[0] = R_LSEL;
1444 *final_types[1] = R_COMP2;
1445 *final_types[2] = R_COMP2;
1446 *final_types[3] = R_COMP1;
1447 final_types[4] = final_type;
1449 *final_types[4] = R_DATA_EXPR;
1451 *final_types[4] = R_CODE_EXPR;
1452 final_types[5] = NULL;
1455 /* PLABELs get their own relocation type. */
1456 else if (field == e_psel
1458 || field == e_rpsel)
1460 /* A PLABEL relocation that has a size of 32 bits must
1461 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1463 *final_type = R_DATA_PLABEL;
1465 *final_type = R_CODE_PLABEL;
1468 else if (field == e_tsel
1470 || field == e_rtsel)
1471 *final_type = R_DLT_REL;
1472 /* A relocation in the data space is always a full 32bits. */
1473 else if (format == 32)
1475 *final_type = R_DATA_ONE_SYMBOL;
1477 /* If there's no SOM symbol type associated with this BFD
1478 symbol, then set the symbol type to ST_DATA.
1480 Only do this if the type is going to default later when
1481 we write the object file.
1483 This is done so that the linker never encounters an
1484 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1486 This allows the compiler to generate exception handling
1489 Note that one day we may need to also emit BEGIN_BRTAB and
1490 END_BRTAB to prevent the linker from optimizing away insns
1491 in exception handling regions. */
1492 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1493 && (sym->flags & BSF_SECTION_SYM) == 0
1494 && (sym->flags & BSF_FUNCTION) == 0
1495 && ! bfd_is_com_section (sym->section))
1496 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1501 /* More PLABEL special cases. */
1504 || field == e_rpsel)
1505 *final_type = R_DATA_PLABEL;
1506 else if (field == e_fsel && format == 32)
1507 *final_type = R_DATA_GPREL;
1510 case R_HPPA_COMPLEX:
1511 /* The difference of two symbols needs *very* special handling. */
1514 bfd_size_type amt = sizeof (int);
1516 final_types[0] = bfd_alloc (abfd, amt);
1517 final_types[1] = bfd_alloc (abfd, amt);
1518 final_types[2] = bfd_alloc (abfd, amt);
1519 final_types[3] = bfd_alloc (abfd, amt);
1520 if (!final_types[0] || !final_types[1] || !final_types[2])
1522 if (field == e_fsel)
1523 *final_types[0] = R_FSEL;
1524 else if (field == e_rsel)
1525 *final_types[0] = R_RSEL;
1526 else if (field == e_lsel)
1527 *final_types[0] = R_LSEL;
1528 *final_types[1] = R_COMP2;
1529 *final_types[2] = R_COMP2;
1530 *final_types[3] = R_COMP1;
1531 final_types[4] = final_type;
1533 *final_types[4] = R_DATA_EXPR;
1535 *final_types[4] = R_CODE_EXPR;
1536 final_types[5] = NULL;
1543 case R_HPPA_ABS_CALL:
1544 /* Right now we can default all these. */
1547 case R_HPPA_PCREL_CALL:
1549 #ifndef NO_PCREL_MODES
1550 /* If we have short and long pcrel modes, then generate the proper
1551 mode selector, then the pcrel relocation. Redundant selectors
1552 will be eliminated as the relocs are sized and emitted. */
1553 bfd_size_type amt = sizeof (int);
1555 final_types[0] = bfd_alloc (abfd, amt);
1556 if (!final_types[0])
1559 *final_types[0] = R_SHORT_PCREL_MODE;
1561 *final_types[0] = R_LONG_PCREL_MODE;
1562 final_types[1] = final_type;
1563 final_types[2] = NULL;
1564 *final_type = base_type;
1572 /* Return the address of the correct entry in the PA SOM relocation
1575 static reloc_howto_type *
1576 som_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1577 bfd_reloc_code_real_type code)
1579 if ((int) code < (int) R_NO_RELOCATION + 255)
1581 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1582 return &som_hppa_howto_table[(int) code];
1588 static reloc_howto_type *
1589 som_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1595 i < sizeof (som_hppa_howto_table) / sizeof (som_hppa_howto_table[0]);
1597 if (som_hppa_howto_table[i].name != NULL
1598 && strcasecmp (som_hppa_howto_table[i].name, r_name) == 0)
1599 return &som_hppa_howto_table[i];
1605 som_swap_clock_in (struct som_external_clock *src,
1606 struct som_clock *dst)
1608 dst->secs = bfd_getb32 (src->secs);
1609 dst->nanosecs = bfd_getb32 (src->nanosecs);
1613 som_swap_clock_out (struct som_clock *src,
1614 struct som_external_clock *dst)
1616 bfd_putb32 (src->secs, dst->secs);
1617 bfd_putb32 (src->nanosecs, dst->nanosecs);
1621 som_swap_header_in (struct som_external_header *src,
1622 struct som_header *dst)
1624 dst->system_id = bfd_getb16 (src->system_id);
1625 dst->a_magic = bfd_getb16 (src->a_magic);
1626 dst->version_id = bfd_getb32 (src->version_id);
1627 som_swap_clock_in (&src->file_time, &dst->file_time);
1628 dst->entry_space = bfd_getb32 (src->entry_space);
1629 dst->entry_subspace = bfd_getb32 (src->entry_subspace);
1630 dst->entry_offset = bfd_getb32 (src->entry_offset);
1631 dst->aux_header_location = bfd_getb32 (src->aux_header_location);
1632 dst->aux_header_size = bfd_getb32 (src->aux_header_size);
1633 dst->som_length = bfd_getb32 (src->som_length);
1634 dst->presumed_dp = bfd_getb32 (src->presumed_dp);
1635 dst->space_location = bfd_getb32 (src->space_location);
1636 dst->space_total = bfd_getb32 (src->space_total);
1637 dst->subspace_location = bfd_getb32 (src->subspace_location);
1638 dst->subspace_total = bfd_getb32 (src->subspace_total);
1639 dst->loader_fixup_location = bfd_getb32 (src->loader_fixup_location);
1640 dst->loader_fixup_total = bfd_getb32 (src->loader_fixup_total);
1641 dst->space_strings_location = bfd_getb32 (src->space_strings_location);
1642 dst->space_strings_size = bfd_getb32 (src->space_strings_size);
1643 dst->init_array_location = bfd_getb32 (src->init_array_location);
1644 dst->init_array_total = bfd_getb32 (src->init_array_total);
1645 dst->compiler_location = bfd_getb32 (src->compiler_location);
1646 dst->compiler_total = bfd_getb32 (src->compiler_total);
1647 dst->symbol_location = bfd_getb32 (src->symbol_location);
1648 dst->symbol_total = bfd_getb32 (src->symbol_total);
1649 dst->fixup_request_location = bfd_getb32 (src->fixup_request_location);
1650 dst->fixup_request_total = bfd_getb32 (src->fixup_request_total);
1651 dst->symbol_strings_location = bfd_getb32 (src->symbol_strings_location);
1652 dst->symbol_strings_size = bfd_getb32 (src->symbol_strings_size);
1653 dst->unloadable_sp_location = bfd_getb32 (src->unloadable_sp_location);
1654 dst->unloadable_sp_size = bfd_getb32 (src->unloadable_sp_size);
1655 dst->checksum = bfd_getb32 (src->checksum);
1659 som_swap_header_out (struct som_header *src,
1660 struct som_external_header *dst)
1662 bfd_putb16 (src->system_id, dst->system_id);
1663 bfd_putb16 (src->a_magic, dst->a_magic);
1664 bfd_putb32 (src->version_id, dst->version_id);
1665 som_swap_clock_out (&src->file_time, &dst->file_time);
1666 bfd_putb32 (src->entry_space, dst->entry_space);
1667 bfd_putb32 (src->entry_subspace, dst->entry_subspace);
1668 bfd_putb32 (src->entry_offset, dst->entry_offset);
1669 bfd_putb32 (src->aux_header_location, dst->aux_header_location);
1670 bfd_putb32 (src->aux_header_size, dst->aux_header_size);
1671 bfd_putb32 (src->som_length, dst->som_length);
1672 bfd_putb32 (src->presumed_dp, dst->presumed_dp);
1673 bfd_putb32 (src->space_location, dst->space_location);
1674 bfd_putb32 (src->space_total, dst->space_total);
1675 bfd_putb32 (src->subspace_location, dst->subspace_location);
1676 bfd_putb32 (src->subspace_total, dst->subspace_total);
1677 bfd_putb32 (src->loader_fixup_location, dst->loader_fixup_location);
1678 bfd_putb32 (src->loader_fixup_total, dst->loader_fixup_total);
1679 bfd_putb32 (src->space_strings_location, dst->space_strings_location);
1680 bfd_putb32 (src->space_strings_size, dst->space_strings_size);
1681 bfd_putb32 (src->init_array_location, dst->init_array_location);
1682 bfd_putb32 (src->init_array_total, dst->init_array_total);
1683 bfd_putb32 (src->compiler_location, dst->compiler_location);
1684 bfd_putb32 (src->compiler_total, dst->compiler_total);
1685 bfd_putb32 (src->symbol_location, dst->symbol_location);
1686 bfd_putb32 (src->symbol_total, dst->symbol_total);
1687 bfd_putb32 (src->fixup_request_location, dst->fixup_request_location);
1688 bfd_putb32 (src->fixup_request_total, dst->fixup_request_total);
1689 bfd_putb32 (src->symbol_strings_location, dst->symbol_strings_location);
1690 bfd_putb32 (src->symbol_strings_size, dst->symbol_strings_size);
1691 bfd_putb32 (src->unloadable_sp_location, dst->unloadable_sp_location);
1692 bfd_putb32 (src->unloadable_sp_size, dst->unloadable_sp_size);
1693 bfd_putb32 (src->checksum, dst->checksum);
1697 som_swap_space_dictionary_in (struct som_external_space_dictionary_record *src,
1698 struct som_space_dictionary_record *dst)
1702 dst->name = bfd_getb32 (src->name);
1703 flags = bfd_getb32 (src->flags);
1704 dst->is_loadable = (flags & SOM_SPACE_IS_LOADABLE) != 0;
1705 dst->is_defined = (flags & SOM_SPACE_IS_DEFINED) != 0;
1706 dst->is_private = (flags & SOM_SPACE_IS_PRIVATE) != 0;
1707 dst->has_intermediate_code = (flags & SOM_SPACE_HAS_INTERMEDIATE_CODE) != 0;
1708 dst->is_tspecific = (flags & SOM_SPACE_IS_TSPECIFIC) != 0;
1710 dst->sort_key = (flags >> SOM_SPACE_SORT_KEY_SH) & SOM_SPACE_SORT_KEY_MASK;
1712 dst->space_number = bfd_getb32 (src->space_number);
1713 dst->subspace_index = bfd_getb32 (src->subspace_index);
1714 dst->subspace_quantity = bfd_getb32 (src->subspace_quantity);
1715 dst->loader_fix_index = bfd_getb32 (src->loader_fix_index);
1716 dst->loader_fix_quantity = bfd_getb32 (src->loader_fix_quantity);
1717 dst->init_pointer_index = bfd_getb32 (src->init_pointer_index);
1718 dst->init_pointer_quantity = bfd_getb32 (src->init_pointer_quantity);
1722 som_swap_space_dictionary_out (struct som_space_dictionary_record *src,
1723 struct som_external_space_dictionary_record *dst)
1727 bfd_putb32 (src->name, dst->name);
1730 if (src->is_loadable)
1731 flags |= SOM_SPACE_IS_LOADABLE;
1732 if (src->is_defined)
1733 flags |= SOM_SPACE_IS_DEFINED;
1734 if (src->is_private)
1735 flags |= SOM_SPACE_IS_PRIVATE;
1736 if (src->has_intermediate_code)
1737 flags |= SOM_SPACE_HAS_INTERMEDIATE_CODE;
1738 if (src->is_tspecific)
1739 flags |= SOM_SPACE_IS_TSPECIFIC;
1740 flags |= (src->sort_key & SOM_SPACE_SORT_KEY_MASK) << SOM_SPACE_SORT_KEY_SH;
1741 bfd_putb32 (flags, dst->flags);
1742 bfd_putb32 (src->space_number, dst->space_number);
1743 bfd_putb32 (src->subspace_index, dst->subspace_index);
1744 bfd_putb32 (src->subspace_quantity, dst->subspace_quantity);
1745 bfd_putb32 (src->loader_fix_index, dst->loader_fix_index);
1746 bfd_putb32 (src->loader_fix_quantity, dst->loader_fix_quantity);
1747 bfd_putb32 (src->init_pointer_index, dst->init_pointer_index);
1748 bfd_putb32 (src->init_pointer_quantity, dst->init_pointer_quantity);
1752 som_swap_subspace_dictionary_in
1753 (struct som_external_subspace_dictionary_record *src,
1754 struct som_subspace_dictionary_record *dst)
1757 dst->space_index = bfd_getb32 (src->space_index);
1758 flags = bfd_getb32 (src->flags);
1759 dst->access_control_bits = (flags >> SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH)
1760 & SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK;
1761 dst->memory_resident = (flags & SOM_SUBSPACE_MEMORY_RESIDENT) != 0;
1762 dst->dup_common = (flags & SOM_SUBSPACE_DUP_COMMON) != 0;
1763 dst->is_common = (flags & SOM_SUBSPACE_IS_COMMON) != 0;
1764 dst->is_loadable = (flags & SOM_SUBSPACE_IS_LOADABLE) != 0;
1765 dst->quadrant = (flags >> SOM_SUBSPACE_QUADRANT_SH)
1766 & SOM_SUBSPACE_QUADRANT_MASK;
1767 dst->initially_frozen = (flags & SOM_SUBSPACE_INITIALLY_FROZEN) != 0;
1768 dst->is_first = (flags & SOM_SUBSPACE_IS_FIRST) != 0;
1769 dst->code_only = (flags & SOM_SUBSPACE_CODE_ONLY) != 0;
1770 dst->sort_key = (flags >> SOM_SUBSPACE_SORT_KEY_SH)
1771 & SOM_SUBSPACE_SORT_KEY_MASK;
1772 dst->replicate_init = (flags & SOM_SUBSPACE_REPLICATE_INIT) != 0;
1773 dst->continuation = (flags & SOM_SUBSPACE_CONTINUATION) != 0;
1774 dst->is_tspecific = (flags & SOM_SUBSPACE_IS_TSPECIFIC) != 0;
1775 dst->is_comdat = (flags & SOM_SUBSPACE_IS_COMDAT) != 0;
1777 dst->file_loc_init_value = bfd_getb32 (src->file_loc_init_value);
1778 dst->initialization_length = bfd_getb32 (src->initialization_length);
1779 dst->subspace_start = bfd_getb32 (src->subspace_start);
1780 dst->subspace_length = bfd_getb32 (src->subspace_length);
1781 dst->alignment = bfd_getb32 (src->alignment);
1782 dst->name = bfd_getb32 (src->name);
1783 dst->fixup_request_index = bfd_getb32 (src->fixup_request_index);
1784 dst->fixup_request_quantity = bfd_getb32 (src->fixup_request_quantity);
1788 som_swap_subspace_dictionary_record_out
1789 (struct som_subspace_dictionary_record *src,
1790 struct som_external_subspace_dictionary_record *dst)
1794 bfd_putb32 (src->space_index, dst->space_index);
1795 flags = (src->access_control_bits & SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK)
1796 << SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH;
1797 if (src->memory_resident)
1798 flags |= SOM_SUBSPACE_MEMORY_RESIDENT;
1799 if (src->dup_common)
1800 flags |= SOM_SUBSPACE_DUP_COMMON;
1802 flags |= SOM_SUBSPACE_IS_COMMON;
1803 if (src->is_loadable)
1804 flags |= SOM_SUBSPACE_IS_LOADABLE;
1805 flags |= (src->quadrant & SOM_SUBSPACE_QUADRANT_MASK)
1806 << SOM_SUBSPACE_QUADRANT_SH;
1807 if (src->initially_frozen)
1808 flags |= SOM_SUBSPACE_INITIALLY_FROZEN;
1810 flags |= SOM_SUBSPACE_IS_FIRST;
1812 flags |= SOM_SUBSPACE_CODE_ONLY;
1813 flags |= (src->sort_key & SOM_SUBSPACE_SORT_KEY_MASK)
1814 << SOM_SUBSPACE_SORT_KEY_SH;
1815 if (src->replicate_init)
1816 flags |= SOM_SUBSPACE_REPLICATE_INIT;
1817 if (src->continuation)
1818 flags |= SOM_SUBSPACE_CONTINUATION;
1819 if (src->is_tspecific)
1820 flags |= SOM_SUBSPACE_IS_TSPECIFIC;
1822 flags |= SOM_SUBSPACE_IS_COMDAT;
1823 bfd_putb32 (flags, dst->flags);
1824 bfd_putb32 (src->file_loc_init_value, dst->file_loc_init_value);
1825 bfd_putb32 (src->initialization_length, dst->initialization_length);
1826 bfd_putb32 (src->subspace_start, dst->subspace_start);
1827 bfd_putb32 (src->subspace_length, dst->subspace_length);
1828 bfd_putb32 (src->alignment, dst->alignment);
1829 bfd_putb32 (src->name, dst->name);
1830 bfd_putb32 (src->fixup_request_index, dst->fixup_request_index);
1831 bfd_putb32 (src->fixup_request_quantity, dst->fixup_request_quantity);
1835 som_swap_aux_id_in (struct som_external_aux_id *src,
1836 struct som_aux_id *dst)
1838 unsigned int flags = bfd_getb32 (src->flags);
1840 dst->mandatory = (flags & SOM_AUX_ID_MANDATORY) != 0;
1841 dst->copy = (flags & SOM_AUX_ID_COPY) != 0;
1842 dst->append = (flags & SOM_AUX_ID_APPEND) != 0;
1843 dst->ignore = (flags & SOM_AUX_ID_IGNORE) != 0;
1844 dst->type = (flags >> SOM_AUX_ID_TYPE_SH) & SOM_AUX_ID_TYPE_MASK;
1845 dst->length = bfd_getb32 (src->length);
1849 som_swap_aux_id_out (struct som_aux_id *src,
1850 struct som_external_aux_id *dst)
1852 unsigned int flags = 0;
1855 flags |= SOM_AUX_ID_MANDATORY;
1857 flags |= SOM_AUX_ID_COPY;
1859 flags |= SOM_AUX_ID_APPEND;
1861 flags |= SOM_AUX_ID_IGNORE;
1862 flags |= (src->type & SOM_AUX_ID_TYPE_MASK) << SOM_AUX_ID_TYPE_SH;
1863 bfd_putb32 (flags, dst->flags);
1864 bfd_putb32 (src->length, dst->length);
1868 som_swap_string_auxhdr_out (struct som_string_auxhdr *src,
1869 struct som_external_string_auxhdr *dst)
1871 som_swap_aux_id_out (&src->header_id, &dst->header_id);
1872 bfd_putb32 (src->string_length, dst->string_length);
1876 som_swap_compilation_unit_out (struct som_compilation_unit *src,
1877 struct som_external_compilation_unit *dst)
1879 bfd_putb32 (src->name.strx, dst->name);
1880 bfd_putb32 (src->language_name.strx, dst->language_name);
1881 bfd_putb32 (src->product_id.strx, dst->product_id);
1882 bfd_putb32 (src->version_id.strx, dst->version_id);
1883 bfd_putb32 (src->flags, dst->flags);
1884 som_swap_clock_out (&src->compile_time, &dst->compile_time);
1885 som_swap_clock_out (&src->source_time, &dst->source_time);
1889 som_swap_exec_auxhdr_in (struct som_external_exec_auxhdr *src,
1890 struct som_exec_auxhdr *dst)
1892 som_swap_aux_id_in (&src->som_auxhdr, &dst->som_auxhdr);
1893 dst->exec_tsize = bfd_getb32 (src->exec_tsize);
1894 dst->exec_tmem = bfd_getb32 (src->exec_tmem);
1895 dst->exec_tfile = bfd_getb32 (src->exec_tfile);
1896 dst->exec_dsize = bfd_getb32 (src->exec_dsize);
1897 dst->exec_dmem = bfd_getb32 (src->exec_dmem);
1898 dst->exec_dfile = bfd_getb32 (src->exec_dfile);
1899 dst->exec_bsize = bfd_getb32 (src->exec_bsize);
1900 dst->exec_entry = bfd_getb32 (src->exec_entry);
1901 dst->exec_flags = bfd_getb32 (src->exec_flags);
1902 dst->exec_bfill = bfd_getb32 (src->exec_bfill);
1906 som_swap_exec_auxhdr_out (struct som_exec_auxhdr *src,
1907 struct som_external_exec_auxhdr *dst)
1909 som_swap_aux_id_out (&src->som_auxhdr, &dst->som_auxhdr);
1910 bfd_putb32 (src->exec_tsize, dst->exec_tsize);
1911 bfd_putb32 (src->exec_tmem, dst->exec_tmem);
1912 bfd_putb32 (src->exec_tfile, dst->exec_tfile);
1913 bfd_putb32 (src->exec_dsize, dst->exec_dsize);
1914 bfd_putb32 (src->exec_dmem, dst->exec_dmem);
1915 bfd_putb32 (src->exec_dfile, dst->exec_dfile);
1916 bfd_putb32 (src->exec_bsize, dst->exec_bsize);
1917 bfd_putb32 (src->exec_entry, dst->exec_entry);
1918 bfd_putb32 (src->exec_flags, dst->exec_flags);
1919 bfd_putb32 (src->exec_bfill, dst->exec_bfill);
1923 som_swap_lst_header_in (struct som_external_lst_header *src,
1924 struct som_lst_header *dst)
1926 dst->system_id = bfd_getb16 (src->system_id);
1927 dst->a_magic = bfd_getb16 (src->a_magic);
1928 dst->version_id = bfd_getb32 (src->version_id);
1929 som_swap_clock_in (&src->file_time, &dst->file_time);
1930 dst->hash_loc = bfd_getb32 (src->hash_loc);
1931 dst->hash_size = bfd_getb32 (src->hash_size);
1932 dst->module_count = bfd_getb32 (src->module_count);
1933 dst->module_limit = bfd_getb32 (src->module_limit);
1934 dst->dir_loc = bfd_getb32 (src->dir_loc);
1935 dst->export_loc = bfd_getb32 (src->export_loc);
1936 dst->export_count = bfd_getb32 (src->export_count);
1937 dst->import_loc = bfd_getb32 (src->import_loc);
1938 dst->aux_loc = bfd_getb32 (src->aux_loc);
1939 dst->aux_size = bfd_getb32 (src->aux_size);
1940 dst->string_loc = bfd_getb32 (src->string_loc);
1941 dst->string_size = bfd_getb32 (src->string_size);
1942 dst->free_list = bfd_getb32 (src->free_list);
1943 dst->file_end = bfd_getb32 (src->file_end);
1944 dst->checksum = bfd_getb32 (src->checksum);
1947 /* Perform some initialization for an object. Save results of this
1948 initialization in the BFD. */
1950 static const bfd_target *
1951 som_object_setup (bfd *abfd,
1952 struct som_header *file_hdrp,
1953 struct som_exec_auxhdr *aux_hdrp,
1954 unsigned long current_offset)
1958 /* som_mkobject will set bfd_error if som_mkobject fails. */
1959 if (! som_mkobject (abfd))
1962 /* Set BFD flags based on what information is available in the SOM. */
1963 abfd->flags = BFD_NO_FLAGS;
1964 if (file_hdrp->symbol_total)
1965 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1967 switch (file_hdrp->a_magic)
1970 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1973 abfd->flags |= (WP_TEXT | EXEC_P);
1976 abfd->flags |= (EXEC_P);
1979 abfd->flags |= HAS_RELOC;
1987 abfd->flags |= DYNAMIC;
1994 /* Save the auxiliary header. */
1995 obj_som_exec_hdr (abfd) = aux_hdrp;
1997 /* Allocate space to hold the saved exec header information. */
1998 obj_som_exec_data (abfd) = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
1999 if (obj_som_exec_data (abfd) == NULL)
2002 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
2004 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
2005 apparently the latest HPUX linker is using NEW_VERSION_ID now.
2007 It's about time, OSF has used the new id since at least 1992;
2008 HPUX didn't start till nearly 1995!.
2010 The new approach examines the entry field for an executable. If
2011 it is not 4-byte aligned then it's not a proper code address and
2012 we guess it's really the executable flags. For a main program,
2013 we also consider zero to be indicative of a buggy linker, since
2014 that is not a valid entry point. The entry point for a shared
2015 library, however, can be zero so we do not consider that to be
2016 indicative of a buggy linker. */
2021 for (section = abfd->sections; section; section = section->next)
2025 if ((section->flags & SEC_CODE) == 0)
2027 entry = aux_hdrp->exec_entry + aux_hdrp->exec_tmem;
2028 if (entry >= section->vma
2029 && entry < section->vma + section->size)
2032 if ((aux_hdrp->exec_entry == 0 && !(abfd->flags & DYNAMIC))
2033 || (aux_hdrp->exec_entry & 0x3) != 0
2036 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
2037 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
2041 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
2042 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
2046 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
2048 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
2049 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
2051 /* Initialize the saved symbol table and string table to NULL.
2052 Save important offsets and sizes from the SOM header into
2054 obj_som_stringtab (abfd) = NULL;
2055 obj_som_symtab (abfd) = NULL;
2056 obj_som_sorted_syms (abfd) = NULL;
2057 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
2058 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
2059 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
2061 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
2063 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
2068 /* Convert all of the space and subspace info into BFD sections. Each space
2069 contains a number of subspaces, which in turn describe the mapping between
2070 regions of the exec file, and the address space that the program runs in.
2071 BFD sections which correspond to spaces will overlap the sections for the
2072 associated subspaces. */
2075 setup_sections (bfd *abfd,
2076 struct som_header *file_hdr,
2077 unsigned long current_offset)
2079 char *space_strings;
2080 unsigned int space_index, i;
2081 unsigned int total_subspaces = 0;
2082 asection **subspace_sections = NULL;
2086 /* First, read in space names. */
2087 amt = file_hdr->space_strings_size;
2088 space_strings = bfd_malloc (amt);
2089 if (!space_strings && amt != 0)
2092 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
2095 if (bfd_bread (space_strings, amt, abfd) != amt)
2098 /* Loop over all of the space dictionaries, building up sections. */
2099 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
2101 struct som_space_dictionary_record space;
2102 struct som_external_space_dictionary_record ext_space;
2104 struct som_external_subspace_dictionary_record ext_subspace;
2105 struct som_subspace_dictionary_record subspace, save_subspace;
2106 unsigned int subspace_index;
2107 asection *space_asect;
2108 bfd_size_type space_size = 0;
2111 /* Read the space dictionary element. */
2113 (current_offset + file_hdr->space_location
2114 + space_index * sizeof (ext_space)),
2117 amt = sizeof ext_space;
2118 if (bfd_bread (&ext_space, amt, abfd) != amt)
2121 som_swap_space_dictionary_in (&ext_space, &space);
2123 /* Setup the space name string. */
2124 space_name = space.name + space_strings;
2126 /* Make a section out of it. */
2127 amt = strlen (space_name) + 1;
2128 newname = bfd_alloc (abfd, amt);
2131 strcpy (newname, space_name);
2133 space_asect = bfd_make_section_anyway (abfd, newname);
2137 if (space.is_loadable == 0)
2138 space_asect->flags |= SEC_DEBUGGING;
2140 /* Set up all the attributes for the space. */
2141 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
2142 space.is_private, space.sort_key,
2143 space.space_number))
2146 /* If the space has no subspaces, then we're done. */
2147 if (space.subspace_quantity == 0)
2150 /* Now, read in the first subspace for this space. */
2152 (current_offset + file_hdr->subspace_location
2153 + space.subspace_index * sizeof ext_subspace),
2156 amt = sizeof ext_subspace;
2157 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
2159 /* Seek back to the start of the subspaces for loop below. */
2161 (current_offset + file_hdr->subspace_location
2162 + space.subspace_index * sizeof ext_subspace),
2166 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2168 /* Setup the start address and file loc from the first subspace
2170 space_asect->vma = subspace.subspace_start;
2171 space_asect->filepos = subspace.file_loc_init_value + current_offset;
2172 space_asect->alignment_power = exact_log2 (subspace.alignment);
2173 if (space_asect->alignment_power == (unsigned) -1)
2176 /* Initialize save_subspace so we can reliably determine if this
2177 loop placed any useful values into it. */
2178 memset (&save_subspace, 0, sizeof (save_subspace));
2180 /* Loop over the rest of the subspaces, building up more sections. */
2181 for (subspace_index = 0; subspace_index < space.subspace_quantity;
2184 asection *subspace_asect;
2185 char *subspace_name;
2187 /* Read in the next subspace. */
2188 amt = sizeof ext_subspace;
2189 if (bfd_bread (&ext_subspace, amt, abfd) != amt)
2192 som_swap_subspace_dictionary_in (&ext_subspace, &subspace);
2194 /* Setup the subspace name string. */
2195 subspace_name = subspace.name + space_strings;
2197 amt = strlen (subspace_name) + 1;
2198 newname = bfd_alloc (abfd, amt);
2201 strcpy (newname, subspace_name);
2203 /* Make a section out of this subspace. */
2204 subspace_asect = bfd_make_section_anyway (abfd, newname);
2205 if (!subspace_asect)
2208 /* Store private information about the section. */
2209 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
2210 subspace.access_control_bits,
2215 subspace.dup_common))
2218 /* Keep an easy mapping between subspaces and sections.
2219 Note we do not necessarily read the subspaces in the
2220 same order in which they appear in the object file.
2222 So to make the target index come out correctly, we
2223 store the location of the subspace header in target
2224 index, then sort using the location of the subspace
2225 header as the key. Then we can assign correct
2226 subspace indices. */
2228 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
2230 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
2231 by the access_control_bits in the subspace header. */
2232 switch (subspace.access_control_bits >> 4)
2234 /* Readonly data. */
2236 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
2241 subspace_asect->flags |= SEC_DATA;
2244 /* Readonly code and the gateways.
2245 Gateways have other attributes which do not map
2246 into anything BFD knows about. */
2252 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
2255 /* dynamic (writable) code. */
2257 subspace_asect->flags |= SEC_CODE;
2261 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
2262 subspace_asect->flags |= SEC_LINK_ONCE;
2264 if (subspace.subspace_length > 0)
2265 subspace_asect->flags |= SEC_HAS_CONTENTS;
2267 if (subspace.is_loadable)
2268 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
2270 subspace_asect->flags |= SEC_DEBUGGING;
2272 if (subspace.code_only)
2273 subspace_asect->flags |= SEC_CODE;
2275 /* Both file_loc_init_value and initialization_length will
2276 be zero for a BSS like subspace. */
2277 if (subspace.file_loc_init_value == 0
2278 && subspace.initialization_length == 0)
2279 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
2281 /* This subspace has relocations.
2282 The fixup_request_quantity is a byte count for the number of
2283 entries in the relocation stream; it is not the actual number
2284 of relocations in the subspace. */
2285 if (subspace.fixup_request_quantity != 0)
2287 subspace_asect->flags |= SEC_RELOC;
2288 subspace_asect->rel_filepos = subspace.fixup_request_index;
2289 som_section_data (subspace_asect)->reloc_size
2290 = subspace.fixup_request_quantity;
2291 /* We can not determine this yet. When we read in the
2292 relocation table the correct value will be filled in. */
2293 subspace_asect->reloc_count = (unsigned) -1;
2296 /* Update save_subspace if appropriate. */
2297 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2298 save_subspace = subspace;
2300 subspace_asect->vma = subspace.subspace_start;
2301 subspace_asect->size = subspace.subspace_length;
2302 subspace_asect->filepos = (subspace.file_loc_init_value
2304 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
2305 if (subspace_asect->alignment_power == (unsigned) -1)
2308 /* Keep track of the accumulated sizes of the sections. */
2309 space_size += subspace.subspace_length;
2312 /* This can happen for a .o which defines symbols in otherwise
2314 if (!save_subspace.file_loc_init_value)
2315 space_asect->size = 0;
2318 if (file_hdr->a_magic != RELOC_MAGIC)
2320 /* Setup the size for the space section based upon the info
2321 in the last subspace of the space. */
2322 space_asect->size = (save_subspace.subspace_start
2324 + save_subspace.subspace_length);
2328 /* The subspace_start field is not initialised in relocatable
2329 only objects, so it cannot be used for length calculations.
2330 Instead we use the space_size value which we have been
2331 accumulating. This isn't an accurate estimate since it
2332 ignores alignment and ordering issues. */
2333 space_asect->size = space_size;
2337 /* Now that we've read in all the subspace records, we need to assign
2338 a target index to each subspace. */
2339 amt = total_subspaces;
2340 amt *= sizeof (asection *);
2341 subspace_sections = bfd_malloc (amt);
2342 if (subspace_sections == NULL)
2345 for (i = 0, section = abfd->sections; section; section = section->next)
2347 if (!som_is_subspace (section))
2350 subspace_sections[i] = section;
2353 qsort (subspace_sections, total_subspaces,
2354 sizeof (asection *), compare_subspaces);
2356 /* subspace_sections is now sorted in the order in which the subspaces
2357 appear in the object file. Assign an index to each one now. */
2358 for (i = 0; i < total_subspaces; i++)
2359 subspace_sections[i]->target_index = i;
2361 if (space_strings != NULL)
2362 free (space_strings);
2364 if (subspace_sections != NULL)
2365 free (subspace_sections);
2370 if (space_strings != NULL)
2371 free (space_strings);
2373 if (subspace_sections != NULL)
2374 free (subspace_sections);
2379 /* Read in a SOM object and make it into a BFD. */
2381 static const bfd_target *
2382 som_object_p (bfd *abfd)
2384 struct som_external_header ext_file_hdr;
2385 struct som_header file_hdr;
2386 struct som_exec_auxhdr *aux_hdr_ptr = NULL;
2387 unsigned long current_offset = 0;
2388 struct som_external_lst_header ext_lst_header;
2389 struct som_external_som_entry ext_som_entry;
2392 #define ENTRY_SIZE sizeof (struct som_external_som_entry)
2394 amt = sizeof (struct som_external_header);
2395 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
2397 if (bfd_get_error () != bfd_error_system_call)
2398 bfd_set_error (bfd_error_wrong_format);
2402 som_swap_header_in (&ext_file_hdr, &file_hdr);
2404 if (!_PA_RISC_ID (file_hdr.system_id))
2406 bfd_set_error (bfd_error_wrong_format);
2410 switch (file_hdr.a_magic)
2418 #ifdef SHARED_MAGIC_CNX
2419 case SHARED_MAGIC_CNX:
2424 /* Read the lst header and determine where the SOM directory begins. */
2426 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2428 if (bfd_get_error () != bfd_error_system_call)
2429 bfd_set_error (bfd_error_wrong_format);
2433 amt = sizeof (struct som_external_lst_header);
2434 if (bfd_bread (&ext_lst_header, amt, abfd) != amt)
2436 if (bfd_get_error () != bfd_error_system_call)
2437 bfd_set_error (bfd_error_wrong_format);
2441 /* Position to and read the first directory entry. */
2442 loc = bfd_getb32 (ext_lst_header.dir_loc);
2443 if (bfd_seek (abfd, loc, SEEK_SET) != 0)
2445 if (bfd_get_error () != bfd_error_system_call)
2446 bfd_set_error (bfd_error_wrong_format);
2451 if (bfd_bread (&ext_som_entry, amt, abfd) != amt)
2453 if (bfd_get_error () != bfd_error_system_call)
2454 bfd_set_error (bfd_error_wrong_format);
2458 /* Now position to the first SOM. */
2459 current_offset = bfd_getb32 (ext_som_entry.location);
2460 if (bfd_seek (abfd, current_offset, SEEK_SET) != 0)
2462 if (bfd_get_error () != bfd_error_system_call)
2463 bfd_set_error (bfd_error_wrong_format);
2467 /* And finally, re-read the som header. */
2468 amt = sizeof (struct som_external_header);
2469 if (bfd_bread (&ext_file_hdr, amt, abfd) != amt)
2471 if (bfd_get_error () != bfd_error_system_call)
2472 bfd_set_error (bfd_error_wrong_format);
2476 som_swap_header_in (&ext_file_hdr, &file_hdr);
2481 bfd_set_error (bfd_error_wrong_format);
2485 if (file_hdr.version_id != OLD_VERSION_ID
2486 && file_hdr.version_id != NEW_VERSION_ID)
2488 bfd_set_error (bfd_error_wrong_format);
2492 /* If the aux_header_size field in the file header is zero, then this
2493 object is an incomplete executable (a .o file). Do not try to read
2494 a non-existant auxiliary header. */
2495 if (file_hdr.aux_header_size != 0)
2497 struct som_external_exec_auxhdr ext_exec_auxhdr;
2499 aux_hdr_ptr = bfd_zalloc (abfd,
2500 (bfd_size_type) sizeof (*aux_hdr_ptr));
2501 if (aux_hdr_ptr == NULL)
2503 amt = sizeof (struct som_external_exec_auxhdr);
2504 if (bfd_bread (&ext_exec_auxhdr, amt, abfd) != amt)
2506 if (bfd_get_error () != bfd_error_system_call)
2507 bfd_set_error (bfd_error_wrong_format);
2510 som_swap_exec_auxhdr_in (&ext_exec_auxhdr, aux_hdr_ptr);
2513 if (!setup_sections (abfd, &file_hdr, current_offset))
2515 /* setup_sections does not bubble up a bfd error code. */
2516 bfd_set_error (bfd_error_bad_value);
2520 /* This appears to be a valid SOM object. Do some initialization. */
2521 return som_object_setup (abfd, &file_hdr, aux_hdr_ptr, current_offset);
2524 /* Create a SOM object. */
2527 som_mkobject (bfd *abfd)
2529 /* Allocate memory to hold backend information. */
2530 abfd->tdata.som_data = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2531 if (abfd->tdata.som_data == NULL)
2536 /* Initialize some information in the file header. This routine makes
2537 not attempt at doing the right thing for a full executable; it
2538 is only meant to handle relocatable objects. */
2541 som_prep_headers (bfd *abfd)
2543 struct som_header *file_hdr;
2545 bfd_size_type amt = sizeof (struct som_header);
2547 /* Make and attach a file header to the BFD. */
2548 file_hdr = bfd_zalloc (abfd, amt);
2549 if (file_hdr == NULL)
2551 obj_som_file_hdr (abfd) = file_hdr;
2553 if (abfd->flags & (EXEC_P | DYNAMIC))
2555 /* Make and attach an exec header to the BFD. */
2556 amt = sizeof (struct som_exec_auxhdr);
2557 obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
2558 if (obj_som_exec_hdr (abfd) == NULL)
2561 if (abfd->flags & D_PAGED)
2562 file_hdr->a_magic = DEMAND_MAGIC;
2563 else if (abfd->flags & WP_TEXT)
2564 file_hdr->a_magic = SHARE_MAGIC;
2566 else if (abfd->flags & DYNAMIC)
2567 file_hdr->a_magic = SHL_MAGIC;
2570 file_hdr->a_magic = EXEC_MAGIC;
2573 file_hdr->a_magic = RELOC_MAGIC;
2575 /* These fields are optional, and embedding timestamps is not always
2576 a wise thing to do, it makes comparing objects during a multi-stage
2577 bootstrap difficult. */
2578 file_hdr->file_time.secs = 0;
2579 file_hdr->file_time.nanosecs = 0;
2581 file_hdr->entry_space = 0;
2582 file_hdr->entry_subspace = 0;
2583 file_hdr->entry_offset = 0;
2584 file_hdr->presumed_dp = 0;
2586 /* Now iterate over the sections translating information from
2587 BFD sections to SOM spaces/subspaces. */
2588 for (section = abfd->sections; section != NULL; section = section->next)
2590 /* Ignore anything which has not been marked as a space or
2592 if (!som_is_space (section) && !som_is_subspace (section))
2595 if (som_is_space (section))
2597 /* Allocate space for the space dictionary. */
2598 amt = sizeof (struct som_space_dictionary_record);
2599 som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
2600 if (som_section_data (section)->space_dict == NULL)
2602 /* Set space attributes. Note most attributes of SOM spaces
2603 are set based on the subspaces it contains. */
2604 som_section_data (section)->space_dict->loader_fix_index = -1;
2605 som_section_data (section)->space_dict->init_pointer_index = -1;
2607 /* Set more attributes that were stuffed away in private data. */
2608 som_section_data (section)->space_dict->sort_key =
2609 som_section_data (section)->copy_data->sort_key;
2610 som_section_data (section)->space_dict->is_defined =
2611 som_section_data (section)->copy_data->is_defined;
2612 som_section_data (section)->space_dict->is_private =
2613 som_section_data (section)->copy_data->is_private;
2614 som_section_data (section)->space_dict->space_number =
2615 som_section_data (section)->copy_data->space_number;
2619 /* Allocate space for the subspace dictionary. */
2620 amt = sizeof (struct som_subspace_dictionary_record);
2621 som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
2622 if (som_section_data (section)->subspace_dict == NULL)
2625 /* Set subspace attributes. Basic stuff is done here, additional
2626 attributes are filled in later as more information becomes
2628 if (section->flags & SEC_ALLOC)
2629 som_section_data (section)->subspace_dict->is_loadable = 1;
2631 if (section->flags & SEC_CODE)
2632 som_section_data (section)->subspace_dict->code_only = 1;
2634 som_section_data (section)->subspace_dict->subspace_start =
2636 som_section_data (section)->subspace_dict->subspace_length =
2638 som_section_data (section)->subspace_dict->initialization_length =
2640 som_section_data (section)->subspace_dict->alignment =
2641 1 << section->alignment_power;
2643 /* Set more attributes that were stuffed away in private data. */
2644 som_section_data (section)->subspace_dict->sort_key =
2645 som_section_data (section)->copy_data->sort_key;
2646 som_section_data (section)->subspace_dict->access_control_bits =
2647 som_section_data (section)->copy_data->access_control_bits;
2648 som_section_data (section)->subspace_dict->quadrant =
2649 som_section_data (section)->copy_data->quadrant;
2650 som_section_data (section)->subspace_dict->is_comdat =
2651 som_section_data (section)->copy_data->is_comdat;
2652 som_section_data (section)->subspace_dict->is_common =
2653 som_section_data (section)->copy_data->is_common;
2654 som_section_data (section)->subspace_dict->dup_common =
2655 som_section_data (section)->copy_data->dup_common;
2661 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2664 som_is_space (asection *section)
2666 /* If no copy data is available, then it's neither a space nor a
2668 if (som_section_data (section)->copy_data == NULL)
2671 /* If the containing space isn't the same as the given section,
2672 then this isn't a space. */
2673 if (som_section_data (section)->copy_data->container != section
2674 && (som_section_data (section)->copy_data->container->output_section
2678 /* OK. Must be a space. */
2682 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2685 som_is_subspace (asection *section)
2687 /* If no copy data is available, then it's neither a space nor a
2689 if (som_section_data (section)->copy_data == NULL)
2692 /* If the containing space is the same as the given section,
2693 then this isn't a subspace. */
2694 if (som_section_data (section)->copy_data->container == section
2695 || (som_section_data (section)->copy_data->container->output_section
2699 /* OK. Must be a subspace. */
2703 /* Return TRUE if the given space contains the given subspace. It
2704 is safe to assume space really is a space, and subspace really
2708 som_is_container (asection *space, asection *subspace)
2710 return (som_section_data (subspace)->copy_data->container == space)
2711 || (som_section_data (subspace)->copy_data->container->output_section
2715 /* Count and return the number of spaces attached to the given BFD. */
2717 static unsigned long
2718 som_count_spaces (bfd *abfd)
2723 for (section = abfd->sections; section != NULL; section = section->next)
2724 count += som_is_space (section);
2729 /* Count the number of subspaces attached to the given BFD. */
2731 static unsigned long
2732 som_count_subspaces (bfd *abfd)
2737 for (section = abfd->sections; section != NULL; section = section->next)
2738 count += som_is_subspace (section);
2743 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2745 We desire symbols to be ordered starting with the symbol with the
2746 highest relocation count down to the symbol with the lowest relocation
2747 count. Doing so compacts the relocation stream. */
2750 compare_syms (const void *arg1, const void *arg2)
2752 asymbol **sym1 = (asymbol **) arg1;
2753 asymbol **sym2 = (asymbol **) arg2;
2754 unsigned int count1, count2;
2756 /* Get relocation count for each symbol. Note that the count
2757 is stored in the udata pointer for section symbols! */
2758 if ((*sym1)->flags & BSF_SECTION_SYM)
2759 count1 = (*sym1)->udata.i;
2761 count1 = som_symbol_data (*sym1)->reloc_count;
2763 if ((*sym2)->flags & BSF_SECTION_SYM)
2764 count2 = (*sym2)->udata.i;
2766 count2 = som_symbol_data (*sym2)->reloc_count;
2768 /* Return the appropriate value. */
2769 if (count1 < count2)
2771 else if (count1 > count2)
2776 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2780 compare_subspaces (const void *arg1, const void *arg2)
2782 asection **subspace1 = (asection **) arg1;
2783 asection **subspace2 = (asection **) arg2;
2785 if ((*subspace1)->target_index < (*subspace2)->target_index)
2787 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2793 /* Perform various work in preparation for emitting the fixup stream. */
2796 som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
2800 asymbol **sorted_syms;
2803 /* Most SOM relocations involving a symbol have a length which is
2804 dependent on the index of the symbol. So symbols which are
2805 used often in relocations should have a small index. */
2807 /* First initialize the counters for each symbol. */
2808 for (i = 0; i < num_syms; i++)
2810 /* Handle a section symbol; these have no pointers back to the
2811 SOM symbol info. So we just use the udata field to hold the
2812 relocation count. */
2813 if (som_symbol_data (syms[i]) == NULL
2814 || syms[i]->flags & BSF_SECTION_SYM)
2816 syms[i]->flags |= BSF_SECTION_SYM;
2817 syms[i]->udata.i = 0;
2820 som_symbol_data (syms[i])->reloc_count = 0;
2823 /* Now that the counters are initialized, make a weighted count
2824 of how often a given symbol is used in a relocation. */
2825 for (section = abfd->sections; section != NULL; section = section->next)
2829 /* Does this section have any relocations? */
2830 if ((int) section->reloc_count <= 0)
2833 /* Walk through each relocation for this section. */
2834 for (j = 1; j < (int) section->reloc_count; j++)
2836 arelent *reloc = section->orelocation[j];
2839 /* A relocation against a symbol in the *ABS* section really
2840 does not have a symbol. Likewise if the symbol isn't associated
2841 with any section. */
2842 if (reloc->sym_ptr_ptr == NULL
2843 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2846 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2847 and R_CODE_ONE_SYMBOL relocations to come first. These
2848 two relocations have single byte versions if the symbol
2849 index is very small. */
2850 if (reloc->howto->type == R_DP_RELATIVE
2851 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2856 /* Handle section symbols by storing the count in the udata
2857 field. It will not be used and the count is very important
2858 for these symbols. */
2859 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2861 (*reloc->sym_ptr_ptr)->udata.i =
2862 (*reloc->sym_ptr_ptr)->udata.i + scale;
2866 /* A normal symbol. Increment the count. */
2867 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2871 /* Sort a copy of the symbol table, rather than the canonical
2872 output symbol table. */
2874 amt *= sizeof (asymbol *);
2875 sorted_syms = bfd_zalloc (abfd, amt);
2876 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2877 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2878 obj_som_sorted_syms (abfd) = sorted_syms;
2880 /* Compute the symbol indexes, they will be needed by the relocation
2882 for (i = 0; i < num_syms; i++)
2884 /* A section symbol. Again, there is no pointer to backend symbol
2885 information, so we reuse the udata field again. */
2886 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2887 sorted_syms[i]->udata.i = i;
2889 som_symbol_data (sorted_syms[i])->index = i;
2894 som_write_fixups (bfd *abfd,
2895 unsigned long current_offset,
2896 unsigned int *total_reloc_sizep)
2899 /* Chunk of memory that we can use as buffer space, then throw
2901 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2903 unsigned int total_reloc_size = 0;
2904 unsigned int subspace_reloc_size = 0;
2905 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2906 asection *section = abfd->sections;
2909 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2912 /* All the fixups for a particular subspace are emitted in a single
2913 stream. All the subspaces for a particular space are emitted
2916 So, to get all the locations correct one must iterate through all the
2917 spaces, for each space iterate through its subspaces and output a
2919 for (i = 0; i < num_spaces; i++)
2921 asection *subsection;
2924 while (!som_is_space (section))
2925 section = section->next;
2927 /* Now iterate through each of its subspaces. */
2928 for (subsection = abfd->sections;
2930 subsection = subsection->next)
2933 unsigned int current_rounding_mode;
2934 #ifndef NO_PCREL_MODES
2935 unsigned int current_call_mode;
2938 /* Find a subspace of this space. */
2939 if (!som_is_subspace (subsection)
2940 || !som_is_container (section, subsection))
2943 /* If this subspace does not have real data, then we are
2944 finished with it. */
2945 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2947 som_section_data (subsection)->subspace_dict->fixup_request_index
2952 /* This subspace has some relocations. Put the relocation stream
2953 index into the subspace record. */
2954 som_section_data (subsection)->subspace_dict->fixup_request_index
2957 /* To make life easier start over with a clean slate for
2958 each subspace. Seek to the start of the relocation stream
2959 for this subspace in preparation for writing out its fixup
2961 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2964 /* Buffer space has already been allocated. Just perform some
2965 initialization here. */
2967 subspace_reloc_size = 0;
2969 som_initialize_reloc_queue (reloc_queue);
2970 current_rounding_mode = R_N_MODE;
2971 #ifndef NO_PCREL_MODES
2972 current_call_mode = R_SHORT_PCREL_MODE;
2975 /* Translate each BFD relocation into one or more SOM
2977 for (j = 0; j < subsection->reloc_count; j++)
2979 arelent *bfd_reloc = subsection->orelocation[j];
2983 /* Get the symbol number. Remember it's stored in a
2984 special place for section symbols. */
2985 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2986 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2988 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2990 /* If there is not enough room for the next couple relocations,
2991 then dump the current buffer contents now. Also reinitialize
2992 the relocation queue.
2994 No single BFD relocation could ever translate into more
2995 than 100 bytes of SOM relocations (20bytes is probably the
2996 upper limit, but leave lots of space for growth). */
2997 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2999 amt = p - tmp_space;
3000 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
3004 som_initialize_reloc_queue (reloc_queue);
3007 /* Emit R_NO_RELOCATION fixups to map any bytes which were
3009 skip = bfd_reloc->address - reloc_offset;
3010 p = som_reloc_skip (abfd, skip, p,
3011 &subspace_reloc_size, reloc_queue);
3013 /* Update reloc_offset for the next iteration.
3015 Many relocations do not consume input bytes. They
3016 are markers, or set state necessary to perform some
3017 later relocation. */
3018 switch (bfd_reloc->howto->type)
3038 #ifndef NO_PCREL_MODES
3039 case R_SHORT_PCREL_MODE:
3040 case R_LONG_PCREL_MODE:
3042 reloc_offset = bfd_reloc->address;
3046 reloc_offset = bfd_reloc->address + 4;
3050 /* Now the actual relocation we care about. */
3051 switch (bfd_reloc->howto->type)
3055 p = som_reloc_call (abfd, p, &subspace_reloc_size,
3056 bfd_reloc, sym_num, reloc_queue);
3059 case R_CODE_ONE_SYMBOL:
3061 /* Account for any addend. */
3062 if (bfd_reloc->addend)
3063 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3064 &subspace_reloc_size, reloc_queue);
3068 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
3069 subspace_reloc_size += 1;
3072 else if (sym_num < 0x100)
3074 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
3075 bfd_put_8 (abfd, sym_num, p + 1);
3076 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3079 else if (sym_num < 0x10000000)
3081 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
3082 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3083 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3084 p = try_prev_fixup (abfd, &subspace_reloc_size,
3092 /* Account for any addend. */
3093 if (bfd_reloc->addend)
3094 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3095 &subspace_reloc_size, reloc_queue);
3097 if (sym_num < 0x10000000)
3099 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3100 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3101 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3102 p = try_prev_fixup (abfd, &subspace_reloc_size,
3109 case R_DATA_ONE_SYMBOL:
3113 /* Account for any addend using R_DATA_OVERRIDE. */
3114 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
3115 && bfd_reloc->addend)
3116 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
3117 &subspace_reloc_size, reloc_queue);
3119 if (sym_num < 0x100)
3121 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3122 bfd_put_8 (abfd, sym_num, p + 1);
3123 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
3126 else if (sym_num < 0x10000000)
3128 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3129 bfd_put_8 (abfd, sym_num >> 16, p + 1);
3130 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
3131 p = try_prev_fixup (abfd, &subspace_reloc_size,
3141 arelent *tmp_reloc = NULL;
3142 bfd_put_8 (abfd, R_ENTRY, p);
3144 /* R_ENTRY relocations have 64 bits of associated
3145 data. Unfortunately the addend field of a bfd
3146 relocation is only 32 bits. So, we split up
3147 the 64bit unwind information and store part in
3148 the R_ENTRY relocation, and the rest in the R_EXIT
3150 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
3152 /* Find the next R_EXIT relocation. */
3153 for (tmp = j; tmp < subsection->reloc_count; tmp++)
3155 tmp_reloc = subsection->orelocation[tmp];
3156 if (tmp_reloc->howto->type == R_EXIT)
3160 if (tmp == subsection->reloc_count)
3163 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
3164 p = try_prev_fixup (abfd, &subspace_reloc_size,
3173 /* If this relocation requests the current rounding
3174 mode, then it is redundant. */
3175 if (bfd_reloc->howto->type != current_rounding_mode)
3177 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3178 subspace_reloc_size += 1;
3180 current_rounding_mode = bfd_reloc->howto->type;
3184 #ifndef NO_PCREL_MODES
3185 case R_LONG_PCREL_MODE:
3186 case R_SHORT_PCREL_MODE:
3187 if (bfd_reloc->howto->type != current_call_mode)
3189 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3190 subspace_reloc_size += 1;
3192 current_call_mode = bfd_reloc->howto->type;
3207 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3208 subspace_reloc_size += 1;
3213 /* The end of an exception handling region. The reloc's
3214 addend contains the offset of the exception handling
3216 if (bfd_reloc->addend == 0)
3217 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3218 else if (bfd_reloc->addend < 1024)
3220 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
3221 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
3222 p = try_prev_fixup (abfd, &subspace_reloc_size,
3227 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
3228 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
3229 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
3230 p = try_prev_fixup (abfd, &subspace_reloc_size,
3236 /* The only time we generate R_COMP1, R_COMP2 and
3237 R_CODE_EXPR relocs is for the difference of two
3238 symbols. Hence we can cheat here. */
3239 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3240 bfd_put_8 (abfd, 0x44, p + 1);
3241 p = try_prev_fixup (abfd, &subspace_reloc_size,
3246 /* The only time we generate R_COMP1, R_COMP2 and
3247 R_CODE_EXPR relocs is for the difference of two
3248 symbols. Hence we can cheat here. */
3249 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3250 bfd_put_8 (abfd, 0x80, p + 1);
3251 bfd_put_8 (abfd, sym_num >> 16, p + 2);
3252 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
3253 p = try_prev_fixup (abfd, &subspace_reloc_size,
3259 /* The only time we generate R_COMP1, R_COMP2 and
3260 R_CODE_EXPR relocs is for the difference of two
3261 symbols. Hence we can cheat here. */
3262 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
3263 subspace_reloc_size += 1;
3267 /* Put a "R_RESERVED" relocation in the stream if
3268 we hit something we do not understand. The linker
3269 will complain loudly if this ever happens. */
3271 bfd_put_8 (abfd, 0xff, p);
3272 subspace_reloc_size += 1;
3278 /* Last BFD relocation for a subspace has been processed.
3279 Map the rest of the subspace with R_NO_RELOCATION fixups. */
3280 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
3281 p, &subspace_reloc_size, reloc_queue);
3283 /* Scribble out the relocations. */
3284 amt = p - tmp_space;
3285 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
3289 total_reloc_size += subspace_reloc_size;
3290 som_section_data (subsection)->subspace_dict->fixup_request_quantity
3291 = subspace_reloc_size;
3293 section = section->next;
3295 *total_reloc_sizep = total_reloc_size;
3299 /* Write out the space/subspace string table. */
3302 som_write_space_strings (bfd *abfd,
3303 unsigned long current_offset,
3304 unsigned int *string_sizep)
3306 /* Chunk of memory that we can use as buffer space, then throw
3308 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3309 char *tmp_space = alloca (tmp_space_size);
3310 char *p = tmp_space;
3311 unsigned int strings_size = 0;
3315 /* Seek to the start of the space strings in preparation for writing
3317 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3320 /* Walk through all the spaces and subspaces (order is not important)
3321 building up and writing string table entries for their names. */
3322 for (section = abfd->sections; section != NULL; section = section->next)
3326 /* Only work with space/subspaces; avoid any other sections
3327 which might have been made (.text for example). */
3328 if (!som_is_space (section) && !som_is_subspace (section))
3331 /* Get the length of the space/subspace name. */
3332 length = strlen (section->name);
3334 /* If there is not enough room for the next entry, then dump the
3335 current buffer contents now and maybe allocate a larger
3336 buffer. Each entry will take 4 bytes to hold the string
3337 length + the string itself + null terminator. */
3338 if (p - tmp_space + 5 + length > tmp_space_size)
3340 /* Flush buffer before refilling or reallocating. */
3341 amt = p - tmp_space;
3342 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3345 /* Reallocate if now empty buffer still too small. */
3346 if (5 + length > tmp_space_size)
3348 /* Ensure a minimum growth factor to avoid O(n**2) space
3349 consumption for n strings. The optimal minimum
3350 factor seems to be 2, as no other value can guarantee
3351 wasting less than 50% space. (Note that we cannot
3352 deallocate space allocated by `alloca' without
3353 returning from this function.) The same technique is
3354 used a few more times below when a buffer is
3356 if (2 * tmp_space_size < length + 5)
3357 tmp_space_size = length + 5;
3359 tmp_space_size = 2 * tmp_space_size;
3360 tmp_space = alloca (tmp_space_size);
3363 /* Reset to beginning of the (possibly new) buffer space. */
3367 /* First element in a string table entry is the length of the
3368 string. Alignment issues are already handled. */
3369 bfd_put_32 (abfd, (bfd_vma) length, p);
3373 /* Record the index in the space/subspace records. */
3374 if (som_is_space (section))
3375 som_section_data (section)->space_dict->name = strings_size;
3377 som_section_data (section)->subspace_dict->name = strings_size;
3379 /* Next comes the string itself + a null terminator. */
3380 strcpy (p, section->name);
3382 strings_size += length + 1;
3384 /* Always align up to the next word boundary. */
3385 while (strings_size % 4)
3387 bfd_put_8 (abfd, 0, p);
3393 /* Done with the space/subspace strings. Write out any information
3394 contained in a partial block. */
3395 amt = p - tmp_space;
3396 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3398 *string_sizep = strings_size;
3402 /* Write out the symbol string table. */
3405 som_write_symbol_strings (bfd *abfd,
3406 unsigned long current_offset,
3408 unsigned int num_syms,
3409 unsigned int *string_sizep,
3410 struct som_compilation_unit *compilation_unit)
3414 /* Chunk of memory that we can use as buffer space, then throw
3416 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3417 char *tmp_space = alloca (tmp_space_size);
3418 char *p = tmp_space;
3420 unsigned int strings_size = 0;
3423 /* This gets a bit gruesome because of the compilation unit. The
3424 strings within the compilation unit are part of the symbol
3425 strings, but don't have symbol_dictionary entries. So, manually
3426 write them and update the compilation unit header. On input, the
3427 compilation unit header contains local copies of the strings.
3430 /* Seek to the start of the space strings in preparation for writing
3432 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3435 if (compilation_unit)
3437 for (i = 0; i < 4; i++)
3439 struct som_name_pt *name;
3445 name = &compilation_unit->name;
3448 name = &compilation_unit->language_name;
3451 name = &compilation_unit->product_id;
3454 name = &compilation_unit->version_id;
3460 length = strlen (name->name);
3462 /* If there is not enough room for the next entry, then dump
3463 the current buffer contents now and maybe allocate a
3465 if (p - tmp_space + 5 + length > tmp_space_size)
3467 /* Flush buffer before refilling or reallocating. */
3468 amt = p - tmp_space;
3469 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3472 /* Reallocate if now empty buffer still too small. */
3473 if (5 + length > tmp_space_size)
3475 /* See alloca above for discussion of new size. */
3476 if (2 * tmp_space_size < 5 + length)
3477 tmp_space_size = 5 + length;
3479 tmp_space_size = 2 * tmp_space_size;
3480 tmp_space = alloca (tmp_space_size);
3483 /* Reset to beginning of the (possibly new) buffer
3488 /* First element in a string table entry is the length of
3489 the string. This must always be 4 byte aligned. This is
3490 also an appropriate time to fill in the string index
3491 field in the symbol table entry. */
3492 bfd_put_32 (abfd, (bfd_vma) length, p);
3496 /* Next comes the string itself + a null terminator. */
3497 strcpy (p, name->name);
3499 name->strx = strings_size;
3502 strings_size += length + 1;
3504 /* Always align up to the next word boundary. */
3505 while (strings_size % 4)
3507 bfd_put_8 (abfd, 0, p);
3514 for (i = 0; i < num_syms; i++)
3516 size_t length = strlen (syms[i]->name);
3518 /* If there is not enough room for the next entry, then dump the
3519 current buffer contents now and maybe allocate a larger buffer. */
3520 if (p - tmp_space + 5 + length > tmp_space_size)
3522 /* Flush buffer before refilling or reallocating. */
3523 amt = p - tmp_space;
3524 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3527 /* Reallocate if now empty buffer still too small. */
3528 if (5 + length > tmp_space_size)
3530 /* See alloca above for discussion of new size. */
3531 if (2 * tmp_space_size < 5 + length)
3532 tmp_space_size = 5 + length;
3534 tmp_space_size = 2 * tmp_space_size;
3535 tmp_space = alloca (tmp_space_size);
3538 /* Reset to beginning of the (possibly new) buffer space. */
3542 /* First element in a string table entry is the length of the
3543 string. This must always be 4 byte aligned. This is also
3544 an appropriate time to fill in the string index field in the
3545 symbol table entry. */
3546 bfd_put_32 (abfd, (bfd_vma) length, p);
3550 /* Next comes the string itself + a null terminator. */
3551 strcpy (p, syms[i]->name);
3553 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3555 strings_size += length + 1;
3557 /* Always align up to the next word boundary. */
3558 while (strings_size % 4)
3560 bfd_put_8 (abfd, 0, p);
3566 /* Scribble out any partial block. */
3567 amt = p - tmp_space;
3568 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3571 *string_sizep = strings_size;
3575 /* Compute variable information to be placed in the SOM headers,
3576 space/subspace dictionaries, relocation streams, etc. Begin
3577 writing parts of the object file. */
3580 som_begin_writing (bfd *abfd)
3582 unsigned long current_offset = 0;
3583 unsigned int strings_size = 0;
3584 unsigned long num_spaces, num_subspaces, i;
3586 unsigned int total_subspaces = 0;
3587 struct som_exec_auxhdr *exec_header = NULL;
3589 /* The file header will always be first in an object file,
3590 everything else can be in random locations. To keep things
3591 "simple" BFD will lay out the object file in the manner suggested
3592 by the PRO ABI for PA-RISC Systems. */
3594 /* Before any output can really begin offsets for all the major
3595 portions of the object file must be computed. So, starting
3596 with the initial file header compute (and sometimes write)
3597 each portion of the object file. */
3599 /* Make room for the file header, it's contents are not complete
3600 yet, so it can not be written at this time. */
3601 current_offset += sizeof (struct som_external_header);
3603 /* Any auxiliary headers will follow the file header. Right now
3604 we support only the copyright and version headers. */
3605 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3606 obj_som_file_hdr (abfd)->aux_header_size = 0;
3607 if (abfd->flags & (EXEC_P | DYNAMIC))
3609 /* Parts of the exec header will be filled in later, so
3610 delay writing the header itself. Fill in the defaults,
3611 and write it later. */
3612 current_offset += sizeof (struct som_external_exec_auxhdr);
3613 obj_som_file_hdr (abfd)->aux_header_size
3614 += sizeof (struct som_external_exec_auxhdr);
3615 exec_header = obj_som_exec_hdr (abfd);
3616 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3617 exec_header->som_auxhdr.length = 40;
3619 if (obj_som_version_hdr (abfd) != NULL)
3621 struct som_external_string_auxhdr ext_string_auxhdr;
3624 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3627 /* Write the aux_id structure and the string length. */
3628 len = sizeof (struct som_external_string_auxhdr);
3629 obj_som_file_hdr (abfd)->aux_header_size += len;
3630 current_offset += len;
3631 som_swap_string_auxhdr_out
3632 (obj_som_version_hdr (abfd), &ext_string_auxhdr);
3633 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
3636 /* Write the version string. */
3637 len = obj_som_version_hdr (abfd)->header_id.length - 4;
3638 obj_som_file_hdr (abfd)->aux_header_size += len;
3639 current_offset += len;
3640 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->string, len, abfd)
3645 if (obj_som_copyright_hdr (abfd) != NULL)
3647 struct som_external_string_auxhdr ext_string_auxhdr;
3650 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3653 /* Write the aux_id structure and the string length. */
3654 len = sizeof (struct som_external_string_auxhdr);
3655 obj_som_file_hdr (abfd)->aux_header_size += len;
3656 current_offset += len;
3657 som_swap_string_auxhdr_out
3658 (obj_som_copyright_hdr (abfd), &ext_string_auxhdr);
3659 if (bfd_bwrite (&ext_string_auxhdr, len, abfd) != len)
3662 /* Write the copyright string. */
3663 len = obj_som_copyright_hdr (abfd)->header_id.length - 4;
3664 obj_som_file_hdr (abfd)->aux_header_size += len;
3665 current_offset += len;
3666 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->string, len, abfd)
3671 /* Next comes the initialization pointers; we have no initialization
3672 pointers, so current offset does not change. */
3673 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3674 obj_som_file_hdr (abfd)->init_array_total = 0;
3676 /* Next are the space records. These are fixed length records.
3678 Count the number of spaces to determine how much room is needed
3679 in the object file for the space records.
3681 The names of the spaces are stored in a separate string table,
3682 and the index for each space into the string table is computed
3683 below. Therefore, it is not possible to write the space headers
3685 num_spaces = som_count_spaces (abfd);
3686 obj_som_file_hdr (abfd)->space_location = current_offset;
3687 obj_som_file_hdr (abfd)->space_total = num_spaces;
3689 num_spaces * sizeof (struct som_external_space_dictionary_record);
3691 /* Next are the subspace records. These are fixed length records.
3693 Count the number of subspaes to determine how much room is needed
3694 in the object file for the subspace records.
3696 A variety if fields in the subspace record are still unknown at
3697 this time (index into string table, fixup stream location/size, etc). */
3698 num_subspaces = som_count_subspaces (abfd);
3699 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3700 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3702 += num_subspaces * sizeof (struct som_external_subspace_dictionary_record);
3704 /* Next is the string table for the space/subspace names. We will
3705 build and write the string table on the fly. At the same time
3706 we will fill in the space/subspace name index fields. */
3708 /* The string table needs to be aligned on a word boundary. */
3709 if (current_offset % 4)
3710 current_offset += (4 - (current_offset % 4));
3712 /* Mark the offset of the space/subspace string table in the
3714 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3716 /* Scribble out the space strings. */
3717 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3720 /* Record total string table size in the header and update the
3722 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3723 current_offset += strings_size;
3725 /* Next is the compilation unit. */
3726 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3727 obj_som_file_hdr (abfd)->compiler_total = 0;
3728 if (obj_som_compilation_unit (abfd))
3730 obj_som_file_hdr (abfd)->compiler_total = 1;
3731 current_offset += sizeof (struct som_external_compilation_unit);
3734 /* Now compute the file positions for the loadable subspaces, taking
3735 care to make sure everything stays properly aligned. */
3737 section = abfd->sections;
3738 for (i = 0; i < num_spaces; i++)
3740 asection *subsection;
3742 unsigned int subspace_offset = 0;
3745 while (!som_is_space (section))
3746 section = section->next;
3749 /* Now look for all its subspaces. */
3750 for (subsection = abfd->sections;
3752 subsection = subsection->next)
3755 if (!som_is_subspace (subsection)
3756 || !som_is_container (section, subsection)
3757 || (subsection->flags & SEC_ALLOC) == 0)
3760 /* If this is the first subspace in the space, and we are
3761 building an executable, then take care to make sure all
3762 the alignments are correct and update the exec header. */
3764 && (abfd->flags & (EXEC_P | DYNAMIC)))
3766 /* Demand paged executables have each space aligned to a
3767 page boundary. Sharable executables (write-protected
3768 text) have just the private (aka data & bss) space aligned
3769 to a page boundary. Ugh. Not true for HPUX.
3771 The HPUX kernel requires the text to always be page aligned
3772 within the file regardless of the executable's type. */
3773 if (abfd->flags & (D_PAGED | DYNAMIC)
3774 || (subsection->flags & SEC_CODE)
3775 || ((abfd->flags & WP_TEXT)
3776 && (subsection->flags & SEC_DATA)))
3777 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3779 /* Update the exec header. */
3780 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3782 exec_header->exec_tmem = section->vma;
3783 exec_header->exec_tfile = current_offset;
3785 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3787 exec_header->exec_dmem = section->vma;
3788 exec_header->exec_dfile = current_offset;
3791 /* Keep track of exactly where we are within a particular
3792 space. This is necessary as the braindamaged HPUX
3793 loader will create holes between subspaces *and*
3794 subspace alignments are *NOT* preserved. What a crock. */
3795 subspace_offset = subsection->vma;
3797 /* Only do this for the first subspace within each space. */
3800 else if (abfd->flags & (EXEC_P | DYNAMIC))
3802 /* The braindamaged HPUX loader may have created a hole
3803 between two subspaces. It is *not* sufficient to use
3804 the alignment specifications within the subspaces to
3805 account for these holes -- I've run into at least one
3806 case where the loader left one code subspace unaligned
3807 in a final executable.
3809 To combat this we keep a current offset within each space,
3810 and use the subspace vma fields to detect and preserve
3811 holes. What a crock!
3813 ps. This is not necessary for unloadable space/subspaces. */
3814 current_offset += subsection->vma - subspace_offset;
3815 if (subsection->flags & SEC_CODE)
3816 exec_header->exec_tsize += subsection->vma - subspace_offset;
3818 exec_header->exec_dsize += subsection->vma - subspace_offset;
3819 subspace_offset += subsection->vma - subspace_offset;
3822 subsection->target_index = total_subspaces++;
3823 /* This is real data to be loaded from the file. */
3824 if (subsection->flags & SEC_LOAD)
3826 /* Update the size of the code & data. */
3827 if (abfd->flags & (EXEC_P | DYNAMIC)
3828 && subsection->flags & SEC_CODE)
3829 exec_header->exec_tsize += subsection->size;
3830 else if (abfd->flags & (EXEC_P | DYNAMIC)
3831 && subsection->flags & SEC_DATA)
3832 exec_header->exec_dsize += subsection->size;
3833 som_section_data (subsection)->subspace_dict->file_loc_init_value
3835 subsection->filepos = current_offset;
3836 current_offset += subsection->size;
3837 subspace_offset += subsection->size;
3839 /* Looks like uninitialized data. */
3842 /* Update the size of the bss section. */
3843 if (abfd->flags & (EXEC_P | DYNAMIC))
3844 exec_header->exec_bsize += subsection->size;
3846 som_section_data (subsection)->subspace_dict->file_loc_init_value
3848 som_section_data (subsection)->subspace_dict->
3849 initialization_length = 0;
3852 /* Goto the next section. */
3853 section = section->next;
3856 /* Finally compute the file positions for unloadable subspaces.
3857 If building an executable, start the unloadable stuff on its
3860 if (abfd->flags & (EXEC_P | DYNAMIC))
3861 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3863 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3864 section = abfd->sections;
3865 for (i = 0; i < num_spaces; i++)
3867 asection *subsection;
3870 while (!som_is_space (section))
3871 section = section->next;
3873 if (abfd->flags & (EXEC_P | DYNAMIC))
3874 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3876 /* Now look for all its subspaces. */
3877 for (subsection = abfd->sections;
3879 subsection = subsection->next)
3882 if (!som_is_subspace (subsection)
3883 || !som_is_container (section, subsection)
3884 || (subsection->flags & SEC_ALLOC) != 0)
3887 subsection->target_index = total_subspaces++;
3888 /* This is real data to be loaded from the file. */
3889 if ((subsection->flags & SEC_LOAD) == 0)
3891 som_section_data (subsection)->subspace_dict->file_loc_init_value
3893 subsection->filepos = current_offset;
3894 current_offset += subsection->size;
3896 /* Looks like uninitialized data. */
3899 som_section_data (subsection)->subspace_dict->file_loc_init_value
3901 som_section_data (subsection)->subspace_dict->
3902 initialization_length = subsection->size;
3905 /* Goto the next section. */
3906 section = section->next;
3909 /* If building an executable, then make sure to seek to and write
3910 one byte at the end of the file to make sure any necessary
3911 zeros are filled in. Ugh. */
3912 if (abfd->flags & (EXEC_P | DYNAMIC))
3913 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3914 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3916 if (bfd_bwrite ((void *) "", (bfd_size_type) 1, abfd) != 1)
3919 obj_som_file_hdr (abfd)->unloadable_sp_size
3920 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3922 /* Loader fixups are not supported in any way shape or form. */
3923 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3924 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3926 /* Done. Store the total size of the SOM so far. */
3927 obj_som_file_hdr (abfd)->som_length = current_offset;
3932 /* Finally, scribble out the various headers to the disk. */
3935 som_finish_writing (bfd *abfd)
3937 int num_spaces = som_count_spaces (abfd);
3938 asymbol **syms = bfd_get_outsymbols (abfd);
3940 int subspace_index = 0;
3943 unsigned long current_offset;
3944 unsigned int strings_size, total_reloc_size;
3946 struct som_external_header ext_header;
3948 /* We must set up the version identifier here as objcopy/strip copy
3949 private BFD data too late for us to handle this in som_begin_writing. */
3950 if (obj_som_exec_data (abfd)
3951 && obj_som_exec_data (abfd)->version_id)
3952 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3954 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3956 /* Next is the symbol table. These are fixed length records.
3958 Count the number of symbols to determine how much room is needed
3959 in the object file for the symbol table.
3961 The names of the symbols are stored in a separate string table,
3962 and the index for each symbol name into the string table is computed
3963 below. Therefore, it is not possible to write the symbol table
3966 These used to be output before the subspace contents, but they
3967 were moved here to work around a stupid bug in the hpux linker
3968 (fixed in hpux10). */
3969 current_offset = obj_som_file_hdr (abfd)->som_length;
3971 /* Make sure we're on a word boundary. */
3972 if (current_offset % 4)
3973 current_offset += (4 - (current_offset % 4));
3975 num_syms = bfd_get_symcount (abfd);
3976 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3977 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3979 num_syms * sizeof (struct som_external_symbol_dictionary_record);
3981 /* Next are the symbol strings.
3982 Align them to a word boundary. */
3983 if (current_offset % 4)
3984 current_offset += (4 - (current_offset % 4));
3985 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3987 /* Scribble out the symbol strings. */
3988 if (! som_write_symbol_strings (abfd, current_offset, syms,
3989 num_syms, &strings_size,
3990 obj_som_compilation_unit (abfd)))
3993 /* Record total string table size in header and update the
3995 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3996 current_offset += strings_size;
3998 /* Do prep work before handling fixups. */
3999 som_prep_for_fixups (abfd,
4000 bfd_get_outsymbols (abfd),
4001 bfd_get_symcount (abfd));
4003 /* At the end of the file is the fixup stream which starts on a
4005 if (current_offset % 4)
4006 current_offset += (4 - (current_offset % 4));
4007 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
4009 /* Write the fixups and update fields in subspace headers which
4010 relate to the fixup stream. */
4011 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
4014 /* Record the total size of the fixup stream in the file header. */
4015 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
4017 /* Done. Store the total size of the SOM. */
4018 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
4020 /* Now that the symbol table information is complete, build and
4021 write the symbol table. */
4022 if (! som_build_and_write_symbol_table (abfd))
4025 /* Subspaces are written first so that we can set up information
4026 about them in their containing spaces as the subspace is written. */
4028 /* Seek to the start of the subspace dictionary records. */
4029 location = obj_som_file_hdr (abfd)->subspace_location;
4030 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4033 section = abfd->sections;
4034 /* Now for each loadable space write out records for its subspaces. */
4035 for (i = 0; i < num_spaces; i++)
4037 asection *subsection;
4040 while (!som_is_space (section))
4041 section = section->next;
4043 /* Now look for all its subspaces. */
4044 for (subsection = abfd->sections;
4046 subsection = subsection->next)
4048 struct som_external_subspace_dictionary_record ext_subspace_dict;
4050 /* Skip any section which does not correspond to a space
4051 or subspace. Or does not have SEC_ALLOC set (and therefore
4052 has no real bits on the disk). */
4053 if (!som_is_subspace (subsection)
4054 || !som_is_container (section, subsection)
4055 || (subsection->flags & SEC_ALLOC) == 0)
4058 /* If this is the first subspace for this space, then save
4059 the index of the subspace in its containing space. Also
4060 set "is_loadable" in the containing space. */
4062 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4064 som_section_data (section)->space_dict->is_loadable = 1;
4065 som_section_data (section)->space_dict->subspace_index
4069 /* Increment the number of subspaces seen and the number of
4070 subspaces contained within the current space. */
4072 som_section_data (section)->space_dict->subspace_quantity++;
4074 /* Mark the index of the current space within the subspace's
4075 dictionary record. */
4076 som_section_data (subsection)->subspace_dict->space_index = i;
4078 /* Dump the current subspace header. */
4079 som_swap_subspace_dictionary_record_out
4080 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
4081 amt = sizeof (struct som_subspace_dictionary_record);
4082 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
4085 /* Goto the next section. */
4086 section = section->next;
4089 /* Now repeat the process for unloadable subspaces. */
4090 section = abfd->sections;
4091 /* Now for each space write out records for its subspaces. */
4092 for (i = 0; i < num_spaces; i++)
4094 asection *subsection;
4097 while (!som_is_space (section))
4098 section = section->next;
4100 /* Now look for all its subspaces. */
4101 for (subsection = abfd->sections;
4103 subsection = subsection->next)
4105 struct som_external_subspace_dictionary_record ext_subspace_dict;
4107 /* Skip any section which does not correspond to a space or
4108 subspace, or which SEC_ALLOC set (and therefore handled
4109 in the loadable spaces/subspaces code above). */
4111 if (!som_is_subspace (subsection)
4112 || !som_is_container (section, subsection)
4113 || (subsection->flags & SEC_ALLOC) != 0)
4116 /* If this is the first subspace for this space, then save
4117 the index of the subspace in its containing space. Clear
4120 if (som_section_data (section)->space_dict->subspace_quantity == 0)
4122 som_section_data (section)->space_dict->is_loadable = 0;
4123 som_section_data (section)->space_dict->subspace_index
4127 /* Increment the number of subspaces seen and the number of
4128 subspaces contained within the current space. */
4129 som_section_data (section)->space_dict->subspace_quantity++;
4132 /* Mark the index of the current space within the subspace's
4133 dictionary record. */
4134 som_section_data (subsection)->subspace_dict->space_index = i;
4136 /* Dump this subspace header. */
4137 som_swap_subspace_dictionary_record_out
4138 (som_section_data (subsection)->subspace_dict, &ext_subspace_dict);
4139 amt = sizeof (struct som_subspace_dictionary_record);
4140 if (bfd_bwrite (&ext_subspace_dict, amt, abfd) != amt)
4143 /* Goto the next section. */
4144 section = section->next;
4147 /* All the subspace dictionary records are written, and all the
4148 fields are set up in the space dictionary records.
4150 Seek to the right location and start writing the space
4151 dictionary records. */
4152 location = obj_som_file_hdr (abfd)->space_location;
4153 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4156 section = abfd->sections;
4157 for (i = 0; i < num_spaces; i++)
4159 struct som_external_space_dictionary_record ext_space_dict;
4162 while (!som_is_space (section))
4163 section = section->next;
4165 /* Dump its header. */
4166 som_swap_space_dictionary_out (som_section_data (section)->space_dict,
4168 amt = sizeof (struct som_external_space_dictionary_record);
4169 if (bfd_bwrite (&ext_space_dict, amt, abfd) != amt)
4172 /* Goto the next section. */
4173 section = section->next;
4176 /* Write the compilation unit record if there is one. */
4177 if (obj_som_compilation_unit (abfd))
4179 struct som_external_compilation_unit ext_comp_unit;
4181 location = obj_som_file_hdr (abfd)->compiler_location;
4182 if (bfd_seek (abfd, location, SEEK_SET) != 0)
4185 som_swap_compilation_unit_out
4186 (obj_som_compilation_unit (abfd), &ext_comp_unit);
4188 amt = sizeof (struct som_external_compilation_unit);
4189 if (bfd_bwrite (&ext_comp_unit, amt, abfd) != amt)
4193 /* Setting of the system_id has to happen very late now that copying of
4194 BFD private data happens *after* section contents are set. */
4195 if (abfd->flags & (EXEC_P | DYNAMIC))
4196 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
4197 else if (bfd_get_mach (abfd) == pa20)
4198 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
4199 else if (bfd_get_mach (abfd) == pa11)
4200 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
4202 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
4204 /* Swap and compute the checksum for the file header just before writing
4205 the header to disk. */
4206 som_swap_header_out (obj_som_file_hdr (abfd), &ext_header);
4207 bfd_putb32 (som_compute_checksum (&ext_header), ext_header.checksum);
4209 /* Only thing left to do is write out the file header. It is always
4210 at location zero. Seek there and write it. */
4211 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
4213 amt = sizeof (struct som_external_header);
4214 if (bfd_bwrite (&ext_header, amt, abfd) != amt)
4217 /* Now write the exec header. */
4218 if (abfd->flags & (EXEC_P | DYNAMIC))
4220 long tmp, som_length;
4221 struct som_exec_auxhdr *exec_header;
4222 struct som_external_exec_auxhdr ext_exec_header;
4224 exec_header = obj_som_exec_hdr (abfd);
4225 exec_header->exec_entry = bfd_get_start_address (abfd);
4226 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
4228 /* Oh joys. Ram some of the BSS data into the DATA section
4229 to be compatible with how the hp linker makes objects
4230 (saves memory space). */
4231 tmp = exec_header->exec_dsize;
4232 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
4233 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
4234 if (exec_header->exec_bsize < 0)
4235 exec_header->exec_bsize = 0;
4236 exec_header->exec_dsize = tmp;
4238 /* Now perform some sanity checks. The idea is to catch bogons now and
4239 inform the user, instead of silently generating a bogus file. */
4240 som_length = obj_som_file_hdr (abfd)->som_length;
4241 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
4242 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
4244 bfd_set_error (bfd_error_bad_value);
4248 som_swap_exec_auxhdr_out (exec_header, &ext_exec_header);
4250 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
4254 amt = sizeof (ext_exec_header);
4255 if (bfd_bwrite (&ext_exec_header, amt, abfd) != amt)
4261 /* Compute and return the checksum for a SOM file header. */
4263 static unsigned long
4264 som_compute_checksum (struct som_external_header *hdr)
4266 unsigned long checksum, count, i;
4267 unsigned long *buffer = (unsigned long *) hdr;
4270 count = sizeof (struct som_external_header) / 4;
4271 for (i = 0; i < count; i++)
4272 checksum ^= *(buffer + i);
4278 som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
4280 struct som_misc_symbol_info *info)
4283 memset (info, 0, sizeof (struct som_misc_symbol_info));
4285 /* The HP SOM linker requires detailed type information about
4286 all symbols (including undefined symbols!). Unfortunately,
4287 the type specified in an import/export statement does not
4288 always match what the linker wants. Severe braindamage. */
4290 /* Section symbols will not have a SOM symbol type assigned to
4291 them yet. Assign all section symbols type ST_DATA. */
4292 if (sym->flags & BSF_SECTION_SYM)
4293 info->symbol_type = ST_DATA;
4296 /* For BFD style common, the linker will choke unless we set the
4297 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
4298 if (bfd_is_com_section (sym->section))
4300 info->symbol_type = ST_STORAGE;
4301 info->symbol_scope = SS_UNSAT;
4304 /* It is possible to have a symbol without an associated
4305 type. This happens if the user imported the symbol
4306 without a type and the symbol was never defined
4307 locally. If BSF_FUNCTION is set for this symbol, then
4308 assign it type ST_CODE (the HP linker requires undefined
4309 external functions to have type ST_CODE rather than ST_ENTRY). */
4310 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4311 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4312 && bfd_is_und_section (sym->section)
4313 && sym->flags & BSF_FUNCTION)
4314 info->symbol_type = ST_CODE;
4316 /* Handle function symbols which were defined in this file.
4317 They should have type ST_ENTRY. Also retrieve the argument
4318 relocation bits from the SOM backend information. */
4319 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
4320 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
4321 && (sym->flags & BSF_FUNCTION))
4322 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
4323 && (sym->flags & BSF_FUNCTION)))
4325 info->symbol_type = ST_ENTRY;
4326 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
4327 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
4330 /* For unknown symbols set the symbol's type based on the symbol's
4331 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
4332 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
4334 if (bfd_is_abs_section (sym->section))
4335 info->symbol_type = ST_ABSOLUTE;
4336 else if (sym->section->flags & SEC_CODE)
4337 info->symbol_type = ST_CODE;
4339 info->symbol_type = ST_DATA;
4342 /* From now on it's a very simple mapping. */
4343 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4344 info->symbol_type = ST_ABSOLUTE;
4345 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4346 info->symbol_type = ST_CODE;
4347 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4348 info->symbol_type = ST_DATA;
4349 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4350 info->symbol_type = ST_MILLICODE;
4351 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4352 info->symbol_type = ST_PLABEL;
4353 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4354 info->symbol_type = ST_PRI_PROG;
4355 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4356 info->symbol_type = ST_SEC_PROG;
4359 /* Now handle the symbol's scope. Exported data which is not
4360 in the common section has scope SS_UNIVERSAL. Note scope
4361 of common symbols was handled earlier! */
4362 if (bfd_is_com_section (sym->section))
4364 else if (bfd_is_und_section (sym->section))
4365 info->symbol_scope = SS_UNSAT;
4366 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
4367 info->symbol_scope = SS_UNIVERSAL;
4368 /* Anything else which is not in the common section has scope
4371 info->symbol_scope = SS_LOCAL;
4373 /* Now set the symbol_info field. It has no real meaning
4374 for undefined or common symbols, but the HP linker will
4375 choke if it's not set to some "reasonable" value. We
4376 use zero as a reasonable value. */
4377 if (bfd_is_com_section (sym->section)
4378 || bfd_is_und_section (sym->section)
4379 || bfd_is_abs_section (sym->section))
4380 info->symbol_info = 0;
4381 /* For all other symbols, the symbol_info field contains the
4382 subspace index of the space this symbol is contained in. */
4384 info->symbol_info = sym->section->target_index;
4386 /* Set the symbol's value. */
4387 info->symbol_value = sym->value + sym->section->vma;
4389 /* The secondary_def field is for "weak" symbols. */
4390 if (sym->flags & BSF_WEAK)
4391 info->secondary_def = TRUE;
4393 info->secondary_def = FALSE;
4395 /* The is_comdat, is_common and dup_common fields provide various
4398 For data symbols, setting IS_COMMON provides Fortran style common
4399 (duplicate definitions and overlapped initialization). Setting both
4400 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4401 definitions as long as they are all the same length). In a shared
4402 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4403 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4404 symbol except in that it loses its IS_COMDAT flag in a shared link.
4406 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4407 DUP_COMMON code symbols are not exported from shared libraries.
4408 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4410 We take a simplified approach to setting the is_comdat, is_common
4411 and dup_common flags in symbols based on the flag settings of their
4412 subspace. This avoids having to add directives like `.comdat' but
4413 the linker behavior is probably undefined if there is more than one
4414 universal symbol (comdat key sysmbol) in a subspace.
4416 The behavior of these flags is not well documentmented, so there
4417 may be bugs and some surprising interactions with other flags. */
4418 if (som_section_data (sym->section)
4419 && som_section_data (sym->section)->subspace_dict
4420 && info->symbol_scope == SS_UNIVERSAL
4421 && (info->symbol_type == ST_ENTRY
4422 || info->symbol_type == ST_CODE
4423 || info->symbol_type == ST_DATA))
4426 = som_section_data (sym->section)->subspace_dict->is_comdat;
4428 = som_section_data (sym->section)->subspace_dict->is_common;
4430 = som_section_data (sym->section)->subspace_dict->dup_common;
4434 /* Build and write, in one big chunk, the entire symbol table for
4438 som_build_and_write_symbol_table (bfd *abfd)
4440 unsigned int num_syms = bfd_get_symcount (abfd);
4441 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4442 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4443 struct som_external_symbol_dictionary_record *som_symtab = NULL;
4445 bfd_size_type symtab_size;
4447 /* Compute total symbol table size and allocate a chunk of memory
4448 to hold the symbol table as we build it. */
4449 symtab_size = num_syms;
4450 symtab_size *= sizeof (struct som_external_symbol_dictionary_record);
4451 som_symtab = bfd_zmalloc (symtab_size);
4452 if (som_symtab == NULL && symtab_size != 0)
4455 /* Walk over each symbol. */
4456 for (i = 0; i < num_syms; i++)
4458 struct som_misc_symbol_info info;
4461 /* This is really an index into the symbol strings table.
4462 By the time we get here, the index has already been
4463 computed and stored into the name field in the BFD symbol. */
4464 bfd_putb32 (som_symbol_data (bfd_syms[i])->stringtab_offset,
4465 som_symtab[i].name);
4467 /* Derive SOM information from the BFD symbol. */
4468 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4471 flags = (info.symbol_type << SOM_SYMBOL_TYPE_SH)
4472 | (info.symbol_scope << SOM_SYMBOL_SCOPE_SH)
4473 | (info.arg_reloc << SOM_SYMBOL_ARG_RELOC_SH)
4474 | (3 << SOM_SYMBOL_XLEAST_SH)
4475 | (info.secondary_def ? SOM_SYMBOL_SECONDARY_DEF : 0)
4476 | (info.is_common ? SOM_SYMBOL_IS_COMMON : 0)
4477 | (info.dup_common ? SOM_SYMBOL_DUP_COMMON : 0);
4478 bfd_putb32 (flags, som_symtab[i].flags);
4480 flags = (info.symbol_info << SOM_SYMBOL_SYMBOL_INFO_SH)
4481 | (info.is_comdat ? SOM_SYMBOL_IS_COMDAT : 0);
4482 bfd_putb32 (flags, som_symtab[i].info);
4483 bfd_putb32 (info.symbol_value | info.priv_level,
4484 som_symtab[i].symbol_value);
4487 /* Everything is ready, seek to the right location and
4488 scribble out the symbol table. */
4489 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4492 if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
4495 if (som_symtab != NULL)
4499 if (som_symtab != NULL)
4504 /* Write an object in SOM format. */
4507 som_write_object_contents (bfd *abfd)
4509 if (! abfd->output_has_begun)
4511 /* Set up fixed parts of the file, space, and subspace headers.
4512 Notify the world that output has begun. */
4513 som_prep_headers (abfd);
4514 abfd->output_has_begun = TRUE;
4515 /* Start writing the object file. This include all the string
4516 tables, fixup streams, and other portions of the object file. */
4517 som_begin_writing (abfd);
4520 return som_finish_writing (abfd);
4523 /* Read and save the string table associated with the given BFD. */
4526 som_slurp_string_table (bfd *abfd)
4531 /* Use the saved version if its available. */
4532 if (obj_som_stringtab (abfd) != NULL)
4535 /* I don't think this can currently happen, and I'm not sure it should
4536 really be an error, but it's better than getting unpredictable results
4537 from the host's malloc when passed a size of zero. */
4538 if (obj_som_stringtab_size (abfd) == 0)
4540 bfd_set_error (bfd_error_no_symbols);
4544 /* Allocate and read in the string table. */
4545 amt = obj_som_stringtab_size (abfd);
4546 stringtab = bfd_zmalloc (amt);
4547 if (stringtab == NULL)
4550 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4553 if (bfd_bread (stringtab, amt, abfd) != amt)
4556 /* Save our results and return success. */
4557 obj_som_stringtab (abfd) = stringtab;
4561 /* Return the amount of data (in bytes) required to hold the symbol
4562 table for this object. */
4565 som_get_symtab_upper_bound (bfd *abfd)
4567 if (!som_slurp_symbol_table (abfd))
4570 return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
4573 /* Convert from a SOM subspace index to a BFD section. */
4576 bfd_section_from_som_symbol
4577 (bfd *abfd, struct som_external_symbol_dictionary_record *symbol)
4580 unsigned int flags = bfd_getb32 (symbol->flags);
4581 unsigned int symbol_type = (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
4583 /* The meaning of the symbol_info field changes for functions
4584 within executables. So only use the quick symbol_info mapping for
4585 incomplete objects and non-function symbols in executables. */
4586 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4587 || (symbol_type != ST_ENTRY
4588 && symbol_type != ST_PRI_PROG
4589 && symbol_type != ST_SEC_PROG
4590 && symbol_type != ST_MILLICODE))
4592 int idx = (bfd_getb32 (symbol->info) >> SOM_SYMBOL_SYMBOL_INFO_SH)
4593 & SOM_SYMBOL_SYMBOL_INFO_MASK;
4595 for (section = abfd->sections; section != NULL; section = section->next)
4596 if (section->target_index == idx && som_is_subspace (section))
4601 unsigned int value = bfd_getb32 (symbol->symbol_value);
4603 /* For executables we will have to use the symbol's address and
4604 find out what section would contain that address. Yuk. */
4605 for (section = abfd->sections; section; section = section->next)
4606 if (value >= section->vma
4607 && value <= section->vma + section->size
4608 && som_is_subspace (section))
4612 /* Could be a symbol from an external library (such as an OMOS
4613 shared library). Don't abort. */
4614 return bfd_abs_section_ptr;
4617 /* Read and save the symbol table associated with the given BFD. */
4620 som_slurp_symbol_table (bfd *abfd)
4622 int symbol_count = bfd_get_symcount (abfd);
4623 int symsize = sizeof (struct som_external_symbol_dictionary_record);
4625 struct som_external_symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4626 som_symbol_type *sym, *symbase;
4629 /* Return saved value if it exists. */
4630 if (obj_som_symtab (abfd) != NULL)
4631 goto successful_return;
4633 /* Special case. This is *not* an error. */
4634 if (symbol_count == 0)
4635 goto successful_return;
4637 if (!som_slurp_string_table (abfd))
4640 stringtab = obj_som_stringtab (abfd);
4643 amt *= sizeof (som_symbol_type);
4644 symbase = bfd_zmalloc (amt);
4645 if (symbase == NULL)
4648 /* Read in the external SOM representation. */
4651 buf = bfd_malloc (amt);
4652 if (buf == NULL && amt != 0)
4654 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4656 if (bfd_bread (buf, amt, abfd) != amt)
4659 /* Iterate over all the symbols and internalize them. */
4660 endbufp = buf + symbol_count;
4661 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4663 unsigned int flags = bfd_getb32 (bufp->flags);
4664 unsigned int symbol_type =
4665 (flags >> SOM_SYMBOL_TYPE_SH) & SOM_SYMBOL_TYPE_MASK;
4666 unsigned int symbol_scope =
4667 (flags >> SOM_SYMBOL_SCOPE_SH) & SOM_SYMBOL_SCOPE_MASK;
4669 /* I don't think we care about these. */
4670 if (symbol_type == ST_SYM_EXT || symbol_type == ST_ARG_EXT)
4673 /* Set some private data we care about. */
4674 if (symbol_type == ST_NULL)
4675 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4676 else if (symbol_type == ST_ABSOLUTE)
4677 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4678 else if (symbol_type == ST_DATA)
4679 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4680 else if (symbol_type == ST_CODE)
4681 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4682 else if (symbol_type == ST_PRI_PROG)
4683 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4684 else if (symbol_type == ST_SEC_PROG)
4685 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4686 else if (symbol_type == ST_ENTRY)
4687 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4688 else if (symbol_type == ST_MILLICODE)
4689 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4690 else if (symbol_type == ST_PLABEL)
4691 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4693 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4694 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc =
4695 (flags >> SOM_SYMBOL_ARG_RELOC_SH) & SOM_SYMBOL_ARG_RELOC_MASK;
4697 /* Some reasonable defaults. */
4698 sym->symbol.the_bfd = abfd;
4699 sym->symbol.name = bfd_getb32 (bufp->name) + stringtab;
4700 sym->symbol.value = bfd_getb32 (bufp->symbol_value);
4701 sym->symbol.section = 0;
4702 sym->symbol.flags = 0;
4704 switch (symbol_type)
4708 sym->symbol.flags |= BSF_FUNCTION;
4709 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4710 sym->symbol.value & 0x3;
4711 sym->symbol.value &= ~0x3;
4718 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4719 sym->symbol.value & 0x3;
4720 sym->symbol.value &= ~0x3;
4721 /* If the symbol's scope is SS_UNSAT, then these are
4722 undefined function symbols. */
4723 if (symbol_scope == SS_UNSAT)
4724 sym->symbol.flags |= BSF_FUNCTION;
4730 /* Handle scoping and section information. */
4731 switch (symbol_scope)
4733 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4734 so the section associated with this symbol can't be known. */
4736 if (symbol_type != ST_STORAGE)
4737 sym->symbol.section = bfd_und_section_ptr;
4739 sym->symbol.section = bfd_com_section_ptr;
4740 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4744 if (symbol_type != ST_STORAGE)
4745 sym->symbol.section = bfd_und_section_ptr;
4747 sym->symbol.section = bfd_com_section_ptr;
4751 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4752 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4753 sym->symbol.value -= sym->symbol.section->vma;
4757 sym->symbol.flags |= BSF_LOCAL;
4758 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4759 sym->symbol.value -= sym->symbol.section->vma;
4763 /* Check for a weak symbol. */
4764 if (flags & SOM_SYMBOL_SECONDARY_DEF)
4765 sym->symbol.flags |= BSF_WEAK;
4767 /* Mark section symbols and symbols used by the debugger.
4768 Note $START$ is a magic code symbol, NOT a section symbol. */
4769 if (sym->symbol.name[0] == '$'
4770 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4771 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4772 sym->symbol.flags |= BSF_SECTION_SYM;
4773 else if (CONST_STRNEQ (sym->symbol.name, "L$0\002"))
4775 sym->symbol.flags |= BSF_SECTION_SYM;
4776 sym->symbol.name = sym->symbol.section->name;
4778 else if (CONST_STRNEQ (sym->symbol.name, "L$0\001"))
4779 sym->symbol.flags |= BSF_DEBUGGING;
4781 /* Note increment at bottom of loop, since we skip some symbols
4782 we can not include it as part of the for statement. */
4786 /* We modify the symbol count to record the number of BFD symbols we
4788 bfd_get_symcount (abfd) = sym - symbase;
4790 /* Save our results and return success. */
4791 obj_som_symtab (abfd) = symbase;
4803 /* Canonicalize a SOM symbol table. Return the number of entries
4804 in the symbol table. */
4807 som_canonicalize_symtab (bfd *abfd, asymbol **location)
4810 som_symbol_type *symbase;
4812 if (!som_slurp_symbol_table (abfd))
4815 i = bfd_get_symcount (abfd);
4816 symbase = obj_som_symtab (abfd);
4818 for (; i > 0; i--, location++, symbase++)
4819 *location = &symbase->symbol;
4821 /* Final null pointer. */
4823 return (bfd_get_symcount (abfd));
4826 /* Make a SOM symbol. There is nothing special to do here. */
4829 som_make_empty_symbol (bfd *abfd)
4831 bfd_size_type amt = sizeof (som_symbol_type);
4832 som_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt);
4834 if (new_symbol_type == NULL)
4836 new_symbol_type->symbol.the_bfd = abfd;
4838 return &new_symbol_type->symbol;
4841 /* Print symbol information. */
4844 som_print_symbol (bfd *abfd,
4847 bfd_print_symbol_type how)
4849 FILE *file = (FILE *) afile;
4853 case bfd_print_symbol_name:
4854 fprintf (file, "%s", symbol->name);
4856 case bfd_print_symbol_more:
4857 fprintf (file, "som ");
4858 fprintf_vma (file, symbol->value);
4859 fprintf (file, " %lx", (long) symbol->flags);
4861 case bfd_print_symbol_all:
4863 const char *section_name;
4865 section_name = symbol->section ? symbol->section->name : "(*none*)";
4866 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
4867 fprintf (file, " %s\t%s", section_name, symbol->name);
4874 som_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
4877 return name[0] == 'L' && name[1] == '$';
4880 /* Count or process variable-length SOM fixup records.
4882 To avoid code duplication we use this code both to compute the number
4883 of relocations requested by a stream, and to internalize the stream.
4885 When computing the number of relocations requested by a stream the
4886 variables rptr, section, and symbols have no meaning.
4888 Return the number of relocations requested by the fixup stream. When
4891 This needs at least two or three more passes to get it cleaned up. */
4894 som_set_reloc_info (unsigned char *fixup,
4896 arelent *internal_relocs,
4899 bfd_boolean just_count)
4901 unsigned int op, varname, deallocate_contents = 0;
4902 unsigned char *end_fixups = &fixup[end];
4903 const struct fixup_format *fp;
4905 unsigned char *save_fixup;
4906 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4908 arelent *rptr = internal_relocs;
4909 unsigned int offset = 0;
4911 #define var(c) variables[(c) - 'A']
4912 #define push(v) (*sp++ = (v))
4913 #define pop() (*--sp)
4914 #define emptystack() (sp == stack)
4916 som_initialize_reloc_queue (reloc_queue);
4917 memset (variables, 0, sizeof (variables));
4918 memset (stack, 0, sizeof (stack));
4921 saved_unwind_bits = 0;
4924 while (fixup < end_fixups)
4926 /* Save pointer to the start of this fixup. We'll use
4927 it later to determine if it is necessary to put this fixup
4931 /* Get the fixup code and its associated format. */
4933 fp = &som_fixup_formats[op];
4935 /* Handle a request for a previous fixup. */
4936 if (*fp->format == 'P')
4938 /* Get pointer to the beginning of the prev fixup, move
4939 the repeated fixup to the head of the queue. */
4940 fixup = reloc_queue[fp->D].reloc;
4941 som_reloc_queue_fix (reloc_queue, fp->D);
4944 /* Get the fixup code and its associated format. */
4946 fp = &som_fixup_formats[op];
4949 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4951 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4952 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4954 rptr->address = offset;
4955 rptr->howto = &som_hppa_howto_table[op];
4957 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4960 /* Set default input length to 0. Get the opcode class index
4964 var ('U') = saved_unwind_bits;
4966 /* Get the opcode format. */
4969 /* Process the format string. Parsing happens in two phases,
4970 parse RHS, then assign to LHS. Repeat until no more
4971 characters in the format string. */
4974 /* The variable this pass is going to compute a value for. */
4977 /* Start processing RHS. Continue until a NULL or '=' is found. */
4982 /* If this is a variable, push it on the stack. */
4986 /* If this is a lower case letter, then it represents
4987 additional data from the fixup stream to be pushed onto
4989 else if (ISLOWER (c))
4991 int bits = (c - 'a') * 8;
4992 for (v = 0; c > 'a'; --c)
4993 v = (v << 8) | *fixup++;
4995 v = sign_extend (v, bits);
4999 /* A decimal constant. Push it on the stack. */
5000 else if (ISDIGIT (c))
5003 while (ISDIGIT (*cp))
5004 v = (v * 10) + (*cp++ - '0');
5008 /* An operator. Pop two two values from the stack and
5009 use them as operands to the given operation. Push
5010 the result of the operation back on the stack. */
5032 while (*cp && *cp != '=');
5034 /* Move over the equal operator. */
5037 /* Pop the RHS off the stack. */
5040 /* Perform the assignment. */
5043 /* Handle side effects. and special 'O' stack cases. */
5046 /* Consume some bytes from the input space. */
5050 /* A symbol to use in the relocation. Make a note
5051 of this if we are not just counting. */
5054 rptr->sym_ptr_ptr = &symbols[c];
5056 /* Argument relocation bits for a function call. */
5060 unsigned int tmp = var ('R');
5063 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
5064 && R_PCREL_CALL + 10 > op)
5065 || (som_hppa_howto_table[op].type == R_ABS_CALL
5066 && R_ABS_CALL + 10 > op))
5068 /* Simple encoding. */
5075 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
5077 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
5079 rptr->addend |= 1 << 8 | 1 << 6;
5081 rptr->addend |= 1 << 8;
5085 unsigned int tmp1, tmp2;
5087 /* First part is easy -- low order two bits are
5088 directly copied, then shifted away. */
5089 rptr->addend = tmp & 0x3;
5092 /* Diving the result by 10 gives us the second
5093 part. If it is 9, then the first two words
5094 are a double precision paramater, else it is
5095 3 * the first arg bits + the 2nd arg bits. */
5099 rptr->addend += (0xe << 6);
5102 /* Get the two pieces. */
5105 /* Put them in the addend. */
5106 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
5109 /* What's left is the third part. It's unpacked
5110 just like the second. */
5112 rptr->addend += (0xe << 2);
5117 rptr->addend += (tmp2 << 4) + (tmp << 2);
5120 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
5123 /* Handle the linker expression stack. */
5128 subop = comp1_opcodes;
5131 subop = comp2_opcodes;
5134 subop = comp3_opcodes;
5139 while (*subop <= (unsigned char) c)
5143 /* The lower 32unwind bits must be persistent. */
5145 saved_unwind_bits = var ('U');
5153 /* If we used a previous fixup, clean up after it. */
5156 fixup = save_fixup + 1;
5160 else if (fixup > save_fixup + 1)
5161 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
5163 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
5165 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
5166 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
5168 /* Done with a single reloction. Loop back to the top. */
5171 if (som_hppa_howto_table[op].type == R_ENTRY)
5172 rptr->addend = var ('T');
5173 else if (som_hppa_howto_table[op].type == R_EXIT)
5174 rptr->addend = var ('U');
5175 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
5176 || som_hppa_howto_table[op].type == R_ABS_CALL)
5178 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
5180 /* Try what was specified in R_DATA_OVERRIDE first
5181 (if anything). Then the hard way using the
5182 section contents. */
5183 rptr->addend = var ('V');
5185 if (rptr->addend == 0 && !section->contents)
5187 /* Got to read the damn contents first. We don't
5188 bother saving the contents (yet). Add it one
5189 day if the need arises. */
5191 if (!bfd_malloc_and_get_section (section->owner, section,
5194 if (contents != NULL)
5196 return (unsigned) -1;
5198 section->contents = contents;
5199 deallocate_contents = 1;
5201 else if (rptr->addend == 0)
5202 rptr->addend = bfd_get_32 (section->owner,
5204 + offset - var ('L')));
5208 rptr->addend = var ('V');
5212 /* Now that we've handled a "full" relocation, reset
5214 memset (variables, 0, sizeof (variables));
5215 memset (stack, 0, sizeof (stack));
5218 if (deallocate_contents)
5219 free (section->contents);
5229 /* Read in the relocs (aka fixups in SOM terms) for a section.
5231 som_get_reloc_upper_bound calls this routine with JUST_COUNT
5232 set to TRUE to indicate it only needs a count of the number
5233 of actual relocations. */
5236 som_slurp_reloc_table (bfd *abfd,
5239 bfd_boolean just_count)
5241 unsigned char *external_relocs;
5242 unsigned int fixup_stream_size;
5243 arelent *internal_relocs;
5244 unsigned int num_relocs;
5247 fixup_stream_size = som_section_data (section)->reloc_size;
5248 /* If there were no relocations, then there is nothing to do. */
5249 if (section->reloc_count == 0)
5252 /* If reloc_count is -1, then the relocation stream has not been
5253 parsed. We must do so now to know how many relocations exist. */
5254 if (section->reloc_count == (unsigned) -1)
5256 amt = fixup_stream_size;
5257 external_relocs = bfd_malloc (amt);
5258 if (external_relocs == NULL)
5260 /* Read in the external forms. */
5262 obj_som_reloc_filepos (abfd) + section->rel_filepos,
5266 if (bfd_bread (external_relocs, amt, abfd) != amt)
5269 /* Let callers know how many relocations found.
5270 also save the relocation stream as we will
5272 section->reloc_count = som_set_reloc_info (external_relocs,
5274 NULL, NULL, NULL, TRUE);
5276 som_section_data (section)->reloc_stream = external_relocs;
5279 /* If the caller only wanted a count, then return now. */
5283 num_relocs = section->reloc_count;
5284 external_relocs = som_section_data (section)->reloc_stream;
5285 /* Return saved information about the relocations if it is available. */
5286 if (section->relocation != NULL)
5290 amt *= sizeof (arelent);
5291 internal_relocs = bfd_zalloc (abfd, (amt));
5292 if (internal_relocs == NULL)
5295 /* Process and internalize the relocations. */
5296 som_set_reloc_info (external_relocs, fixup_stream_size,
5297 internal_relocs, section, symbols, FALSE);
5299 /* We're done with the external relocations. Free them. */
5300 free (external_relocs);
5301 som_section_data (section)->reloc_stream = NULL;
5303 /* Save our results and return success. */
5304 section->relocation = internal_relocs;
5308 /* Return the number of bytes required to store the relocation
5309 information associated with the given section. */
5312 som_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
5314 /* If section has relocations, then read in the relocation stream
5315 and parse it to determine how many relocations exist. */
5316 if (asect->flags & SEC_RELOC)
5318 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
5320 return (asect->reloc_count + 1) * sizeof (arelent *);
5323 /* There are no relocations. Return enough space to hold the
5324 NULL pointer which will be installed if som_canonicalize_reloc
5326 return sizeof (arelent *);
5329 /* Convert relocations from SOM (external) form into BFD internal
5330 form. Return the number of relocations. */
5333 som_canonicalize_reloc (bfd *abfd,
5341 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
5344 count = section->reloc_count;
5345 tblptr = section->relocation;
5348 *relptr++ = tblptr++;
5351 return section->reloc_count;
5354 extern const bfd_target som_vec;
5356 /* A hook to set up object file dependent section information. */
5359 som_new_section_hook (bfd *abfd, asection *newsect)
5361 if (!newsect->used_by_bfd)
5363 bfd_size_type amt = sizeof (struct som_section_data_struct);
5365 newsect->used_by_bfd = bfd_zalloc (abfd, amt);
5366 if (!newsect->used_by_bfd)
5369 newsect->alignment_power = 3;
5371 /* We allow more than three sections internally. */
5372 return _bfd_generic_new_section_hook (abfd, newsect);
5375 /* Copy any private info we understand from the input symbol
5376 to the output symbol. */
5379 som_bfd_copy_private_symbol_data (bfd *ibfd,
5384 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5385 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5387 /* One day we may try to grok other private data. */
5388 if (ibfd->xvec->flavour != bfd_target_som_flavour
5389 || obfd->xvec->flavour != bfd_target_som_flavour)
5392 /* The only private information we need to copy is the argument relocation
5394 output_symbol->tc_data.ap.hppa_arg_reloc =
5395 input_symbol->tc_data.ap.hppa_arg_reloc;
5400 /* Copy any private info we understand from the input section
5401 to the output section. */
5404 som_bfd_copy_private_section_data (bfd *ibfd,
5411 /* One day we may try to grok other private data. */
5412 if (ibfd->xvec->flavour != bfd_target_som_flavour
5413 || obfd->xvec->flavour != bfd_target_som_flavour
5414 || (!som_is_space (isection) && !som_is_subspace (isection)))
5417 amt = sizeof (struct som_copyable_section_data_struct);
5418 som_section_data (osection)->copy_data = bfd_zalloc (obfd, amt);
5419 if (som_section_data (osection)->copy_data == NULL)
5422 memcpy (som_section_data (osection)->copy_data,
5423 som_section_data (isection)->copy_data,
5424 sizeof (struct som_copyable_section_data_struct));
5426 /* Reparent if necessary. */
5427 if (som_section_data (osection)->copy_data->container)
5428 som_section_data (osection)->copy_data->container =
5429 som_section_data (osection)->copy_data->container->output_section;
5434 /* Copy any private info we understand from the input bfd
5435 to the output bfd. */
5438 som_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
5440 /* One day we may try to grok other private data. */
5441 if (ibfd->xvec->flavour != bfd_target_som_flavour
5442 || obfd->xvec->flavour != bfd_target_som_flavour)
5445 /* Allocate some memory to hold the data we need. */
5446 obj_som_exec_data (obfd) = bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5447 if (obj_som_exec_data (obfd) == NULL)
5450 /* Now copy the data. */
5451 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5452 sizeof (struct som_exec_data));
5457 /* Display the SOM header. */
5460 som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
5462 struct som_exec_auxhdr *exec_header;
5463 struct som_aux_id* auxhdr;
5468 exec_header = obj_som_exec_hdr (abfd);
5471 fprintf (f, _("\nExec Auxiliary Header\n"));
5472 fprintf (f, " flags ");
5473 auxhdr = &exec_header->som_auxhdr;
5474 if (auxhdr->mandatory)
5475 fprintf (f, "mandatory ");
5477 fprintf (f, "copy ");
5479 fprintf (f, "append ");
5481 fprintf (f, "ignore ");
5483 fprintf (f, " type %#x\n", auxhdr->type);
5484 fprintf (f, " length %#x\n", auxhdr->length);
5486 /* Note that, depending on the HP-UX version, the following fields can be
5487 either ints, or longs. */
5489 fprintf (f, " text size %#lx\n", (long) exec_header->exec_tsize);
5490 fprintf (f, " text memory offset %#lx\n", (long) exec_header->exec_tmem);
5491 fprintf (f, " text file offset %#lx\n", (long) exec_header->exec_tfile);
5492 fprintf (f, " data size %#lx\n", (long) exec_header->exec_dsize);
5493 fprintf (f, " data memory offset %#lx\n", (long) exec_header->exec_dmem);
5494 fprintf (f, " data file offset %#lx\n", (long) exec_header->exec_dfile);
5495 fprintf (f, " bss size %#lx\n", (long) exec_header->exec_bsize);
5496 fprintf (f, " entry point %#lx\n", (long) exec_header->exec_entry);
5497 fprintf (f, " loader flags %#lx\n", (long) exec_header->exec_flags);
5498 fprintf (f, " bss initializer %#lx\n", (long) exec_header->exec_bfill);
5504 /* Set backend info for sections which can not be described
5505 in the BFD data structures. */
5508 bfd_som_set_section_attributes (asection *section,
5511 unsigned int sort_key,
5514 /* Allocate memory to hold the magic information. */
5515 if (som_section_data (section)->copy_data == NULL)
5517 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5519 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5520 if (som_section_data (section)->copy_data == NULL)
5523 som_section_data (section)->copy_data->sort_key = sort_key;
5524 som_section_data (section)->copy_data->is_defined = defined;
5525 som_section_data (section)->copy_data->is_private = private;
5526 som_section_data (section)->copy_data->container = section;
5527 som_section_data (section)->copy_data->space_number = spnum;
5531 /* Set backend info for subsections which can not be described
5532 in the BFD data structures. */
5535 bfd_som_set_subsection_attributes (asection *section,
5536 asection *container,
5538 unsigned int sort_key,
5544 /* Allocate memory to hold the magic information. */
5545 if (som_section_data (section)->copy_data == NULL)
5547 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5549 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5550 if (som_section_data (section)->copy_data == NULL)
5553 som_section_data (section)->copy_data->sort_key = sort_key;
5554 som_section_data (section)->copy_data->access_control_bits = access_ctr;
5555 som_section_data (section)->copy_data->quadrant = quadrant;
5556 som_section_data (section)->copy_data->container = container;
5557 som_section_data (section)->copy_data->is_comdat = comdat;
5558 som_section_data (section)->copy_data->is_common = common;
5559 som_section_data (section)->copy_data->dup_common = dup_common;
5563 /* Set the full SOM symbol type. SOM needs far more symbol information
5564 than any other object file format I'm aware of. It is mandatory
5565 to be able to know if a symbol is an entry point, millicode, data,
5566 code, absolute, storage request, or procedure label. If you get
5567 the symbol type wrong your program will not link. */
5570 bfd_som_set_symbol_type (asymbol *symbol, unsigned int type)
5572 som_symbol_data (symbol)->som_type = type;
5575 /* Attach an auxiliary header to the BFD backend so that it may be
5576 written into the object file. */
5579 bfd_som_attach_aux_hdr (bfd *abfd, int type, char *string)
5583 if (type == VERSION_AUX_ID)
5585 size_t len = strlen (string);
5589 pad = (4 - (len % 4));
5590 amt = sizeof (struct som_string_auxhdr) + len + pad;
5591 obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
5592 if (!obj_som_version_hdr (abfd))
5594 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5595 obj_som_version_hdr (abfd)->header_id.length = 4 + len + pad;
5596 obj_som_version_hdr (abfd)->string_length = len;
5597 memcpy (obj_som_version_hdr (abfd)->string, string, len);
5598 memset (obj_som_version_hdr (abfd)->string + len, 0, pad);
5600 else if (type == COPYRIGHT_AUX_ID)
5602 int len = strlen (string);
5606 pad = (4 - (len % 4));
5607 amt = sizeof (struct som_string_auxhdr) + len + pad;
5608 obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
5609 if (!obj_som_copyright_hdr (abfd))
5611 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5612 obj_som_copyright_hdr (abfd)->header_id.length = len + pad + 4;
5613 obj_som_copyright_hdr (abfd)->string_length = len;
5614 memcpy (obj_som_copyright_hdr (abfd)->string, string, len);
5615 memset (obj_som_copyright_hdr (abfd)->string + len, 0, pad);
5620 /* Attach a compilation unit header to the BFD backend so that it may be
5621 written into the object file. */
5624 bfd_som_attach_compilation_unit (bfd *abfd,
5626 const char *language_name,
5627 const char *product_id,
5628 const char *version_id)
5630 struct som_compilation_unit *n;
5632 n = (struct som_compilation_unit *) bfd_zalloc
5633 (abfd, (bfd_size_type) sizeof (*n));
5640 n->f.name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5641 if (n->f.name == NULL) \
5643 strcpy (n->f.name, f); \
5647 STRDUP (language_name);
5648 STRDUP (product_id);
5649 STRDUP (version_id);
5653 obj_som_compilation_unit (abfd) = n;
5659 som_get_section_contents (bfd *abfd,
5663 bfd_size_type count)
5665 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5667 if ((bfd_size_type) (offset+count) > section->size
5668 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5669 || bfd_bread (location, count, abfd) != count)
5670 return FALSE; /* On error. */
5675 som_set_section_contents (bfd *abfd,
5677 const void *location,
5679 bfd_size_type count)
5681 if (! abfd->output_has_begun)
5683 /* Set up fixed parts of the file, space, and subspace headers.
5684 Notify the world that output has begun. */
5685 som_prep_headers (abfd);
5686 abfd->output_has_begun = TRUE;
5687 /* Start writing the object file. This include all the string
5688 tables, fixup streams, and other portions of the object file. */
5689 som_begin_writing (abfd);
5692 /* Only write subspaces which have "real" contents (eg. the contents
5693 are not generated at run time by the OS). */
5694 if (!som_is_subspace (section)
5695 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5698 /* Seek to the proper offset within the object file and write the
5700 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5701 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5704 if (bfd_bwrite (location, count, abfd) != count)
5710 som_set_arch_mach (bfd *abfd,
5711 enum bfd_architecture arch,
5712 unsigned long machine)
5714 /* Allow any architecture to be supported by the SOM backend. */
5715 return bfd_default_set_arch_mach (abfd, arch, machine);
5719 som_find_nearest_line (bfd *abfd,
5723 const char **filename_ptr,
5724 const char **functionname_ptr,
5725 unsigned int *line_ptr)
5732 if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
5733 & found, filename_ptr,
5734 functionname_ptr, line_ptr,
5735 & somdata (abfd).line_info))
5741 if (symbols == NULL)
5744 /* Fallback: find function name from symbols table. */
5748 for (p = symbols; *p != NULL; p++)
5750 som_symbol_type *q = (som_symbol_type *) *p;
5752 if (q->som_type == SYMBOL_TYPE_ENTRY
5753 && q->symbol.section == section
5754 && q->symbol.value >= low_func
5755 && q->symbol.value <= offset)
5757 func = (asymbol *) q;
5758 low_func = q->symbol.value;
5765 *filename_ptr = NULL;
5766 *functionname_ptr = bfd_asymbol_name (func);
5773 som_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
5774 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5776 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5781 /* Return the single-character symbol type corresponding to
5782 SOM section S, or '?' for an unknown SOM section. */
5785 som_section_type (const char *s)
5787 const struct section_to_type *t;
5789 for (t = &stt[0]; t->section; t++)
5790 if (!strcmp (s, t->section))
5796 som_decode_symclass (asymbol *symbol)
5800 if (bfd_is_com_section (symbol->section))
5802 if (bfd_is_und_section (symbol->section))
5804 if (symbol->flags & BSF_WEAK)
5806 /* If weak, determine if it's specifically an object
5807 or non-object weak. */
5808 if (symbol->flags & BSF_OBJECT)
5816 if (bfd_is_ind_section (symbol->section))
5818 if (symbol->flags & BSF_WEAK)
5820 /* If weak, determine if it's specifically an object
5821 or non-object weak. */
5822 if (symbol->flags & BSF_OBJECT)
5827 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5830 if (bfd_is_abs_section (symbol->section)
5831 || (som_symbol_data (symbol) != NULL
5832 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5834 else if (symbol->section)
5835 c = som_section_type (symbol->section->name);
5838 if (symbol->flags & BSF_GLOBAL)
5843 /* Return information about SOM symbol SYMBOL in RET. */
5846 som_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
5850 ret->type = som_decode_symclass (symbol);
5851 if (ret->type != 'U')
5852 ret->value = symbol->value + symbol->section->vma;
5855 ret->name = symbol->name;
5858 /* Count the number of symbols in the archive symbol table. Necessary
5859 so that we can allocate space for all the carsyms at once. */
5862 som_bfd_count_ar_symbols (bfd *abfd,
5863 struct som_lst_header *lst_header,
5867 unsigned char *hash_table;
5869 file_ptr lst_filepos;
5871 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5873 amt = lst_header->hash_size * 4;
5874 hash_table = bfd_malloc (amt);
5875 if (hash_table == NULL && amt != 0)
5878 /* Don't forget to initialize the counter! */
5881 /* Read in the hash table. The has table is an array of 32bit file offsets
5882 which point to the hash chains. */
5883 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5886 /* Walk each chain counting the number of symbols found on that particular
5888 for (i = 0; i < lst_header->hash_size; i++)
5890 struct som_external_lst_symbol_record ext_lst_symbol;
5891 unsigned int hash_val = bfd_getb32 (hash_table + 4 * i);
5893 /* An empty chain has zero as it's file offset. */
5897 /* Seek to the first symbol in this hash chain. */
5898 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
5901 /* Read in this symbol and update the counter. */
5902 amt = sizeof (ext_lst_symbol);
5903 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
5908 /* Now iterate through the rest of the symbols on this chain. */
5911 unsigned int next_entry = bfd_getb32 (ext_lst_symbol.next_entry);
5913 if (next_entry == 0)
5916 /* Seek to the next symbol. */
5917 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
5920 /* Read the symbol in and update the counter. */
5921 amt = sizeof (ext_lst_symbol);
5922 if (bfd_bread ((void *) &ext_lst_symbol, amt, abfd) != amt)
5928 if (hash_table != NULL)
5933 if (hash_table != NULL)
5938 /* Fill in the canonical archive symbols (SYMS) from the archive described
5939 by ABFD and LST_HEADER. */
5942 som_bfd_fill_in_ar_symbols (bfd *abfd,
5943 struct som_lst_header *lst_header,
5947 carsym *set = syms[0];
5948 unsigned char *hash_table;
5949 struct som_external_som_entry *som_dict = NULL;
5951 file_ptr lst_filepos;
5952 unsigned int string_loc;
5954 lst_filepos = bfd_tell (abfd) - sizeof (struct som_external_lst_header);
5955 amt = lst_header->hash_size * 4;
5956 hash_table = bfd_malloc (amt);
5957 if (hash_table == NULL && amt != 0)
5960 /* Read in the hash table. The has table is an array of 32bit file offsets
5961 which point to the hash chains. */
5962 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5965 /* Seek to and read in the SOM dictionary. We will need this to fill
5966 in the carsym's filepos field. */
5967 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5970 amt = lst_header->module_count * sizeof (struct som_external_som_entry);
5971 som_dict = bfd_malloc (amt);
5972 if (som_dict == NULL && amt != 0)
5975 if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
5978 string_loc = lst_header->string_loc;
5980 /* Walk each chain filling in the carsyms as we go along. */
5981 for (i = 0; i < lst_header->hash_size; i++)
5983 struct som_external_lst_symbol_record lst_symbol;
5984 unsigned int hash_val;
5986 unsigned char ext_len[4];
5988 /* An empty chain has zero as it's file offset. */
5989 hash_val = bfd_getb32 (hash_table + 4 * i);
5993 /* Seek to and read the first symbol on the chain. */
5994 if (bfd_seek (abfd, lst_filepos + hash_val, SEEK_SET) != 0)
5997 amt = sizeof (lst_symbol);
5998 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
6001 /* Get the name of the symbol, first get the length which is stored
6002 as a 32bit integer just before the symbol.
6004 One might ask why we don't just read in the entire string table
6005 and index into it. Well, according to the SOM ABI the string
6006 index can point *anywhere* in the archive to save space, so just
6007 using the string table would not be safe. */
6008 if (bfd_seek (abfd, (lst_filepos + string_loc
6009 + bfd_getb32 (lst_symbol.name) - 4), SEEK_SET) != 0)
6012 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
6014 len = bfd_getb32 (ext_len);
6016 /* Allocate space for the name and null terminate it too. */
6017 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6020 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
6025 /* Fill in the file offset. Note that the "location" field points
6026 to the SOM itself, not the ar_hdr in front of it. */
6028 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6029 - sizeof (struct ar_hdr);
6031 /* Go to the next symbol. */
6034 /* Iterate through the rest of the chain. */
6037 unsigned int next_entry = bfd_getb32 (lst_symbol.next_entry);
6039 if (next_entry == 0)
6042 /* Seek to the next symbol and read it in. */
6043 if (bfd_seek (abfd, lst_filepos + next_entry, SEEK_SET) != 0)
6046 amt = sizeof (lst_symbol);
6047 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
6050 /* Seek to the name length & string and read them in. */
6051 if (bfd_seek (abfd, lst_filepos + string_loc
6052 + bfd_getb32 (lst_symbol.name) - 4, SEEK_SET) != 0)
6055 if (bfd_bread (&ext_len, (bfd_size_type) 4, abfd) != 4)
6057 len = bfd_getb32 (ext_len);
6059 /* Allocate space for the name and null terminate it too. */
6060 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
6064 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
6068 /* Fill in the file offset. Note that the "location" field points
6069 to the SOM itself, not the ar_hdr in front of it. */
6071 bfd_getb32 (som_dict[bfd_getb32 (lst_symbol.som_index)].location)
6072 - sizeof (struct ar_hdr);
6074 /* Go on to the next symbol. */
6078 /* If we haven't died by now, then we successfully read the entire
6079 archive symbol table. */
6080 if (hash_table != NULL)
6082 if (som_dict != NULL)
6087 if (hash_table != NULL)
6089 if (som_dict != NULL)
6094 /* Read in the LST from the archive. */
6097 som_slurp_armap (bfd *abfd)
6099 struct som_external_lst_header ext_lst_header;
6100 struct som_lst_header lst_header;
6101 struct ar_hdr ar_header;
6102 unsigned int parsed_size;
6103 struct artdata *ardata = bfd_ardata (abfd);
6105 bfd_size_type amt = 16;
6106 int i = bfd_bread ((void *) nextname, amt, abfd);
6108 /* Special cases. */
6114 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
6117 /* For archives without .o files there is no symbol table. */
6118 if (! CONST_STRNEQ (nextname, "/ "))
6120 bfd_has_map (abfd) = FALSE;
6124 /* Read in and sanity check the archive header. */
6125 amt = sizeof (struct ar_hdr);
6126 if (bfd_bread ((void *) &ar_header, amt, abfd) != amt)
6129 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
6131 bfd_set_error (bfd_error_malformed_archive);
6135 /* How big is the archive symbol table entry? */
6137 parsed_size = strtol (ar_header.ar_size, NULL, 10);
6140 bfd_set_error (bfd_error_malformed_archive);
6144 /* Save off the file offset of the first real user data. */
6145 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
6147 /* Read in the library symbol table. We'll make heavy use of this
6148 in just a minute. */
6149 amt = sizeof (struct som_external_lst_header);
6150 if (bfd_bread ((void *) &ext_lst_header, amt, abfd) != amt)
6153 som_swap_lst_header_in (&ext_lst_header, &lst_header);
6156 if (lst_header.a_magic != LIBMAGIC)
6158 bfd_set_error (bfd_error_malformed_archive);
6162 /* Count the number of symbols in the library symbol table. */
6163 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
6166 /* Get back to the start of the library symbol table. */
6167 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
6168 + sizeof (struct som_external_lst_header)),
6172 /* Initialize the cache and allocate space for the library symbols. */
6174 amt = ardata->symdef_count;
6175 amt *= sizeof (carsym);
6176 ardata->symdefs = bfd_alloc (abfd, amt);
6177 if (!ardata->symdefs)
6180 /* Now fill in the canonical archive symbols. */
6181 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
6184 /* Seek back to the "first" file in the archive. Note the "first"
6185 file may be the extended name table. */
6186 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
6189 /* Notify the generic archive code that we have a symbol map. */
6190 bfd_has_map (abfd) = TRUE;
6194 /* Begin preparing to write a SOM library symbol table.
6196 As part of the prep work we need to determine the number of symbols
6197 and the size of the associated string section. */
6200 som_bfd_prep_for_ar_write (bfd *abfd,
6201 unsigned int *num_syms,
6202 unsigned int *stringsize)
6204 bfd *curr_bfd = abfd->archive_head;
6206 /* Some initialization. */
6210 /* Iterate over each BFD within this archive. */
6211 while (curr_bfd != NULL)
6213 unsigned int curr_count, i;
6214 som_symbol_type *sym;
6216 /* Don't bother for non-SOM objects. */
6217 if (curr_bfd->format != bfd_object
6218 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6220 curr_bfd = curr_bfd->archive_next;
6224 /* Make sure the symbol table has been read, then snag a pointer
6225 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6226 but doing so avoids allocating lots of extra memory. */
6227 if (! som_slurp_symbol_table (curr_bfd))
6230 sym = obj_som_symtab (curr_bfd);
6231 curr_count = bfd_get_symcount (curr_bfd);
6233 /* Examine each symbol to determine if it belongs in the
6234 library symbol table. */
6235 for (i = 0; i < curr_count; i++, sym++)
6237 struct som_misc_symbol_info info;
6239 /* Derive SOM information from the BFD symbol. */
6240 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6242 /* Should we include this symbol? */
6243 if (info.symbol_type == ST_NULL
6244 || info.symbol_type == ST_SYM_EXT
6245 || info.symbol_type == ST_ARG_EXT)
6248 /* Only global symbols and unsatisfied commons. */
6249 if (info.symbol_scope != SS_UNIVERSAL
6250 && info.symbol_type != ST_STORAGE)
6253 /* Do no include undefined symbols. */
6254 if (bfd_is_und_section (sym->symbol.section))
6257 /* Bump the various counters, being careful to honor
6258 alignment considerations in the string table. */
6260 *stringsize += strlen (sym->symbol.name) + 5;
6261 while (*stringsize % 4)
6265 curr_bfd = curr_bfd->archive_next;
6270 /* Hash a symbol name based on the hashing algorithm presented in the
6274 som_bfd_ar_symbol_hash (asymbol *symbol)
6276 unsigned int len = strlen (symbol->name);
6278 /* Names with length 1 are special. */
6280 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
6282 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
6283 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
6286 /* Do the bulk of the work required to write the SOM library
6290 som_bfd_ar_write_symbol_stuff (bfd *abfd,
6292 unsigned int string_size,
6293 struct som_external_lst_header lst,
6296 char *strings = NULL, *p;
6297 struct som_external_lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
6299 unsigned char *hash_table = NULL;
6300 struct som_external_som_entry *som_dict = NULL;
6301 struct som_external_lst_symbol_record **last_hash_entry = NULL;
6302 unsigned int curr_som_offset, som_index = 0;
6304 unsigned int module_count;
6305 unsigned int hash_size;
6307 hash_size = bfd_getb32 (lst.hash_size);
6308 amt = hash_size * 4;
6309 hash_table = bfd_zmalloc (amt);
6310 if (hash_table == NULL && hash_size != 0)
6313 module_count = bfd_getb32 (lst.module_count);
6314 amt = module_count * sizeof (struct som_external_som_entry);
6315 som_dict = bfd_zmalloc (amt);
6316 if (som_dict == NULL && module_count != 0)
6319 amt = hash_size * sizeof (struct som_external_lst_symbol_record *);
6320 last_hash_entry = bfd_zmalloc (amt);
6321 if (last_hash_entry == NULL && hash_size != 0)
6324 /* Symbols have som_index fields, so we have to keep track of the
6325 index of each SOM in the archive.
6327 The SOM dictionary has (among other things) the absolute file
6328 position for the SOM which a particular dictionary entry
6329 describes. We have to compute that information as we iterate
6330 through the SOMs/symbols. */
6333 /* We add in the size of the archive header twice as the location
6334 in the SOM dictionary is the actual offset of the SOM, not the
6335 archive header before the SOM. */
6336 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + bfd_getb32 (lst.file_end);
6338 /* Make room for the archive header and the contents of the
6339 extended string table. Note that elength includes the size
6340 of the archive header for the extended name table! */
6342 curr_som_offset += elength;
6344 /* Make sure we're properly aligned. */
6345 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
6347 /* FIXME should be done with buffers just like everything else... */
6349 amt *= sizeof (struct som_external_lst_symbol_record);
6350 lst_syms = bfd_malloc (amt);
6351 if (lst_syms == NULL && nsyms != 0)
6353 strings = bfd_malloc ((bfd_size_type) string_size);
6354 if (strings == NULL && string_size != 0)
6358 curr_lst_sym = lst_syms;
6360 curr_bfd = abfd->archive_head;
6361 while (curr_bfd != NULL)
6363 unsigned int curr_count, i;
6364 som_symbol_type *sym;
6366 /* Don't bother for non-SOM objects. */
6367 if (curr_bfd->format != bfd_object
6368 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
6370 curr_bfd = curr_bfd->archive_next;
6374 /* Make sure the symbol table has been read, then snag a pointer
6375 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6376 but doing so avoids allocating lots of extra memory. */
6377 if (! som_slurp_symbol_table (curr_bfd))
6380 sym = obj_som_symtab (curr_bfd);
6381 curr_count = bfd_get_symcount (curr_bfd);
6383 for (i = 0; i < curr_count; i++, sym++)
6385 struct som_misc_symbol_info info;
6386 struct som_external_lst_symbol_record *last;
6387 unsigned int symbol_pos;
6389 unsigned int symbol_key;
6392 /* Derive SOM information from the BFD symbol. */
6393 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6395 /* Should we include this symbol? */
6396 if (info.symbol_type == ST_NULL
6397 || info.symbol_type == ST_SYM_EXT
6398 || info.symbol_type == ST_ARG_EXT)
6401 /* Only global symbols and unsatisfied commons. */
6402 if (info.symbol_scope != SS_UNIVERSAL
6403 && info.symbol_type != ST_STORAGE)
6406 /* Do no include undefined symbols. */
6407 if (bfd_is_und_section (sym->symbol.section))
6410 /* If this is the first symbol from this SOM, then update
6411 the SOM dictionary too. */
6412 if (bfd_getb32 (som_dict[som_index].location) == 0)
6414 bfd_putb32 (curr_som_offset, som_dict[som_index].location);
6415 bfd_putb32 (arelt_size (curr_bfd), som_dict[som_index].length);
6418 symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6420 /* Fill in the lst symbol record. */
6422 if (info.secondary_def)
6423 flags |= LST_SYMBOL_SECONDARY_DEF;
6424 flags |= info.symbol_type << LST_SYMBOL_SYMBOL_TYPE_SH;
6425 flags |= info.symbol_scope << LST_SYMBOL_SYMBOL_SCOPE_SH;
6426 if (bfd_is_com_section (sym->symbol.section))
6427 flags |= LST_SYMBOL_IS_COMMON;
6428 if (info.dup_common)
6429 flags |= LST_SYMBOL_DUP_COMMON;
6430 flags |= 3 << LST_SYMBOL_XLEAST_SH;
6431 flags |= info.arg_reloc << LST_SYMBOL_ARG_RELOC_SH;
6432 bfd_putb32 (flags, curr_lst_sym->flags);
6433 bfd_putb32 (p - strings + 4, curr_lst_sym->name);
6434 bfd_putb32 (0, curr_lst_sym->qualifier_name);
6435 bfd_putb32 (info.symbol_info, curr_lst_sym->symbol_info);
6436 bfd_putb32 (info.symbol_value | info.priv_level,
6437 curr_lst_sym->symbol_value);
6438 bfd_putb32 (0, curr_lst_sym->symbol_descriptor);
6439 curr_lst_sym->reserved = 0;
6440 bfd_putb32 (som_index, curr_lst_sym->som_index);
6441 bfd_putb32 (symbol_key, curr_lst_sym->symbol_key);
6442 bfd_putb32 (0, curr_lst_sym->next_entry);
6444 /* Insert into the hash table. */
6446 (curr_lst_sym - lst_syms)
6447 * sizeof (struct som_external_lst_symbol_record)
6449 + module_count * sizeof (struct som_external_som_entry)
6450 + sizeof (struct som_external_lst_header);
6451 last = last_hash_entry[symbol_key % hash_size];
6454 /* There is already something at the head of this hash chain,
6455 so tack this symbol onto the end of the chain. */
6456 bfd_putb32 (symbol_pos, last->next_entry);
6459 /* First entry in this hash chain. */
6460 bfd_putb32 (symbol_pos, hash_table + 4 * (symbol_key % hash_size));
6462 /* Keep track of the last symbol we added to this chain so we can
6463 easily update its next_entry pointer. */
6464 last_hash_entry[symbol_key % hash_size] = curr_lst_sym;
6466 /* Update the string table. */
6467 slen = strlen (sym->symbol.name);
6468 bfd_put_32 (abfd, slen, p);
6470 slen++; /* Nul terminator. */
6471 memcpy (p, sym->symbol.name, slen);
6475 bfd_put_8 (abfd, 0, p);
6479 BFD_ASSERT (p <= strings + string_size);
6481 /* Head to the next symbol. */
6485 /* Keep track of where each SOM will finally reside; then look
6487 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6489 /* A particular object in the archive may have an odd length; the
6490 linker requires objects begin on an even boundary. So round
6491 up the current offset as necessary. */
6492 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6493 curr_bfd = curr_bfd->archive_next;
6497 /* Now scribble out the hash table. */
6498 amt = hash_size * 4;
6499 if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
6502 /* Then the SOM dictionary. */
6503 amt = module_count * sizeof (struct som_external_som_entry);
6504 if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
6507 /* The library symbols. */
6508 amt = nsyms * sizeof (struct som_external_lst_symbol_record);
6509 if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
6512 /* And finally the strings. */
6514 if (bfd_bwrite ((void *) strings, amt, abfd) != amt)
6517 if (hash_table != NULL)
6519 if (som_dict != NULL)
6521 if (last_hash_entry != NULL)
6522 free (last_hash_entry);
6523 if (lst_syms != NULL)
6525 if (strings != NULL)
6530 if (hash_table != NULL)
6532 if (som_dict != NULL)
6534 if (last_hash_entry != NULL)
6535 free (last_hash_entry);
6536 if (lst_syms != NULL)
6538 if (strings != NULL)
6544 /* Write out the LST for the archive.
6546 You'll never believe this is really how armaps are handled in SOM... */
6549 som_write_armap (bfd *abfd,
6550 unsigned int elength,
6551 struct orl *map ATTRIBUTE_UNUSED,
6552 unsigned int orl_count ATTRIBUTE_UNUSED,
6553 int stridx ATTRIBUTE_UNUSED)
6556 struct stat statbuf;
6557 unsigned int i, lst_size, nsyms, stringsize;
6559 struct som_external_lst_header lst;
6563 unsigned int module_count;
6565 /* We'll use this for the archive's date and mode later. */
6566 if (stat (abfd->filename, &statbuf) != 0)
6568 bfd_set_error (bfd_error_system_call);
6572 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6574 /* Account for the lst header first. */
6575 lst_size = sizeof (struct som_external_lst_header);
6577 /* Start building the LST header. */
6578 /* FIXME: Do we need to examine each element to determine the
6579 largest id number? */
6580 bfd_putb16 (CPU_PA_RISC1_0, &lst.system_id);
6581 bfd_putb16 (LIBMAGIC, &lst.a_magic);
6582 bfd_putb32 (VERSION_ID, &lst.version_id);
6583 bfd_putb32 (0, &lst.file_time.secs);
6584 bfd_putb32 (0, &lst.file_time.nanosecs);
6586 bfd_putb32 (lst_size, &lst.hash_loc);
6587 bfd_putb32 (SOM_LST_HASH_SIZE, &lst.hash_size);
6589 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6590 lst_size += 4 * SOM_LST_HASH_SIZE;
6592 /* We need to count the number of SOMs in this archive. */
6593 curr_bfd = abfd->archive_head;
6595 while (curr_bfd != NULL)
6597 /* Only true SOM objects count. */
6598 if (curr_bfd->format == bfd_object
6599 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6601 curr_bfd = curr_bfd->archive_next;
6603 bfd_putb32 (module_count, &lst.module_count);
6604 bfd_putb32 (module_count, &lst.module_limit);
6605 bfd_putb32 (lst_size, &lst.dir_loc);
6606 lst_size += sizeof (struct som_external_som_entry) * module_count;
6608 /* We don't support import/export tables, auxiliary headers,
6609 or free lists yet. Make the linker work a little harder
6610 to make our life easier. */
6612 bfd_putb32 (0, &lst.export_loc);
6613 bfd_putb32 (0, &lst.export_count);
6614 bfd_putb32 (0, &lst.import_loc);
6615 bfd_putb32 (0, &lst.aux_loc);
6616 bfd_putb32 (0, &lst.aux_size);
6618 /* Count how many symbols we will have on the hash chains and the
6619 size of the associated string table. */
6620 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6623 lst_size += sizeof (struct som_external_lst_symbol_record) * nsyms;
6625 /* For the string table. One day we might actually use this info
6626 to avoid small seeks/reads when reading archives. */
6627 bfd_putb32 (lst_size, &lst.string_loc);
6628 bfd_putb32 (stringsize, &lst.string_size);
6629 lst_size += stringsize;
6631 /* SOM ABI says this must be zero. */
6632 bfd_putb32 (0, &lst.free_list);
6633 bfd_putb32 (lst_size, &lst.file_end);
6635 /* Compute the checksum. Must happen after the entire lst header
6637 p = (unsigned char *) &lst;
6639 for (i = 0; i < sizeof (struct som_external_lst_header) - sizeof (int);
6641 csum ^= bfd_getb32 (&p[i]);
6642 bfd_putb32 (csum, &lst.checksum);
6644 sprintf (hdr.ar_name, "/ ");
6645 _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%-12ld",
6646 bfd_ardata (abfd)->armap_timestamp);
6647 _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld",
6649 _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld",
6651 _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-8o",
6652 (unsigned int)statbuf.st_mode);
6653 _bfd_ar_spacepad (hdr.ar_size, sizeof (hdr.ar_size), "%-10d",
6655 hdr.ar_fmag[0] = '`';
6656 hdr.ar_fmag[1] = '\012';
6658 /* Turn any nulls into spaces. */
6659 for (i = 0; i < sizeof (struct ar_hdr); i++)
6660 if (((char *) (&hdr))[i] == '\0')
6661 (((char *) (&hdr))[i]) = ' ';
6663 /* Scribble out the ar header. */
6664 amt = sizeof (struct ar_hdr);
6665 if (bfd_bwrite ((void *) &hdr, amt, abfd) != amt)
6668 /* Now scribble out the lst header. */
6669 amt = sizeof (struct som_external_lst_header);
6670 if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
6673 /* Build and write the armap. */
6674 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6681 /* Free all information we have cached for this BFD. We can always
6682 read it again later if we need it. */
6685 som_bfd_free_cached_info (bfd *abfd)
6689 if (bfd_get_format (abfd) != bfd_object)
6692 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6693 /* Free the native string and symbol tables. */
6694 FREE (obj_som_symtab (abfd));
6695 FREE (obj_som_stringtab (abfd));
6696 for (o = abfd->sections; o != NULL; o = o->next)
6698 /* Free the native relocations. */
6699 o->reloc_count = (unsigned) -1;
6700 FREE (som_section_data (o)->reloc_stream);
6701 /* Do not free the generic relocations as they are objalloc'ed. */
6708 /* End of miscellaneous support functions. */
6710 /* Linker support functions. */
6713 som_bfd_link_split_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
6715 return som_is_subspace (sec) && sec->size > 240000;
6718 #define som_close_and_cleanup som_bfd_free_cached_info
6719 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6720 #define som_write_ar_hdr _bfd_generic_write_ar_hdr
6721 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6722 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6723 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6724 #define som_truncate_arname bfd_bsd_truncate_arname
6725 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6726 #define som_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
6727 #define som_update_armap_timestamp bfd_true
6728 #define som_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
6729 #define som_get_lineno _bfd_nosymbols_get_lineno
6730 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6731 #define som_read_minisymbols _bfd_generic_read_minisymbols
6732 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6733 #define som_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
6734 #define som_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
6735 #define som_bfd_relax_section bfd_generic_relax_section
6736 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6737 #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6738 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6739 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6740 #define som_bfd_copy_link_hash_symbol_type \
6741 _bfd_generic_copy_link_hash_symbol_type
6742 #define som_bfd_final_link _bfd_generic_final_link
6743 #define som_bfd_gc_sections bfd_generic_gc_sections
6744 #define som_bfd_merge_sections bfd_generic_merge_sections
6745 #define som_bfd_is_group_section bfd_generic_is_group_section
6746 #define som_bfd_discard_group bfd_generic_discard_group
6747 #define som_section_already_linked _bfd_generic_section_already_linked
6748 #define som_bfd_define_common_symbol bfd_generic_define_common_symbol
6749 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
6750 #define som_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
6751 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
6752 #define som_find_inliner_info _bfd_nosymbols_find_inliner_info
6754 const bfd_target som_vec =
6757 bfd_target_som_flavour,
6758 BFD_ENDIAN_BIG, /* Target byte order. */
6759 BFD_ENDIAN_BIG, /* Target headers byte order. */
6760 (HAS_RELOC | EXEC_P | /* Object flags. */
6761 HAS_LINENO | HAS_DEBUG |
6762 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6763 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
6764 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
6766 /* Leading_symbol_char: is the first char of a user symbol
6767 predictable, and if so what is it. */
6769 '/', /* AR_pad_char. */
6770 14, /* AR_max_namelen. */
6771 0, /* match priority. */
6772 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6773 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6774 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
6775 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6776 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6777 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
6779 som_object_p, /* bfd_check_format. */
6780 bfd_generic_archive_p,
6786 _bfd_generic_mkarchive,
6791 som_write_object_contents,
6792 _bfd_write_archive_contents,
6797 BFD_JUMP_TABLE_GENERIC (som),
6798 BFD_JUMP_TABLE_COPY (som),
6799 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6800 BFD_JUMP_TABLE_ARCHIVE (som),
6801 BFD_JUMP_TABLE_SYMBOLS (som),
6802 BFD_JUMP_TABLE_RELOCS (som),
6803 BFD_JUMP_TABLE_WRITE (som),
6804 BFD_JUMP_TABLE_LINK (som),
6805 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),