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
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
29 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) || defined(HOST_HPPAMPEIX)
33 #include "safe-ctype.h"
35 #include <sys/param.h>
37 #include <machine/reg.h>
40 /* This is the code recommended in the autoconf documentation, almost
48 /* Indented so that pre-ansi C compilers will ignore it, rather than
49 choke on it. Some versions of AIX require this to be the first
53 # ifndef alloca /* predefined by HP cc +Olibcalls */
54 # if !defined (__STDC__) && !defined (__hpux)
55 extern char *alloca ();
57 extern void *alloca ();
58 # endif /* __STDC__, __hpux */
61 # endif /* HAVE_ALLOCA_H */
63 extern void *alloca (size_t);
66 static bfd_reloc_status_type hppa_som_reloc
67 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
68 static bfd_boolean som_mkobject (bfd *);
69 static bfd_boolean som_is_space (asection *);
70 static bfd_boolean som_is_subspace (asection *);
71 static int compare_subspaces (const void *, const void *);
72 static unsigned long som_compute_checksum (bfd *);
73 static bfd_boolean som_build_and_write_symbol_table (bfd *);
74 static unsigned int som_slurp_symbol_table (bfd *);
76 /* Magic not defined in standard HP-UX header files until 8.0. */
78 #ifndef CPU_PA_RISC1_0
79 #define CPU_PA_RISC1_0 0x20B
80 #endif /* CPU_PA_RISC1_0 */
82 #ifndef CPU_PA_RISC1_1
83 #define CPU_PA_RISC1_1 0x210
84 #endif /* CPU_PA_RISC1_1 */
86 #ifndef CPU_PA_RISC2_0
87 #define CPU_PA_RISC2_0 0x214
88 #endif /* CPU_PA_RISC2_0 */
90 #ifndef _PA_RISC1_0_ID
91 #define _PA_RISC1_0_ID CPU_PA_RISC1_0
92 #endif /* _PA_RISC1_0_ID */
94 #ifndef _PA_RISC1_1_ID
95 #define _PA_RISC1_1_ID CPU_PA_RISC1_1
96 #endif /* _PA_RISC1_1_ID */
98 #ifndef _PA_RISC2_0_ID
99 #define _PA_RISC2_0_ID CPU_PA_RISC2_0
100 #endif /* _PA_RISC2_0_ID */
102 #ifndef _PA_RISC_MAXID
103 #define _PA_RISC_MAXID 0x2FF
104 #endif /* _PA_RISC_MAXID */
107 #define _PA_RISC_ID(__m_num) \
108 (((__m_num) == _PA_RISC1_0_ID) || \
109 ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID))
110 #endif /* _PA_RISC_ID */
112 /* HIUX in it's infinite stupidity changed the names for several "well
113 known" constants. Work around such braindamage. Try the HPUX version
114 first, then the HIUX version, and finally provide a default. */
116 #define EXEC_AUX_ID HPUX_AUX_ID
119 #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID)
120 #define EXEC_AUX_ID HIUX_AUX_ID
124 #define EXEC_AUX_ID 0
127 /* Size (in chars) of the temporary buffers used during fixup and string
130 #define SOM_TMP_BUFSIZE 8192
132 /* Size of the hash table in archives. */
133 #define SOM_LST_HASH_SIZE 31
135 /* Max number of SOMs to be found in an archive. */
136 #define SOM_LST_MODULE_LIMIT 1024
138 /* Generic alignment macro. */
139 #define SOM_ALIGN(val, alignment) \
140 (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1))
142 /* SOM allows any one of the four previous relocations to be reused
143 with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP
144 relocations are always a single byte, using a R_PREV_FIXUP instead
145 of some multi-byte relocation makes object files smaller.
147 Note one side effect of using a R_PREV_FIXUP is the relocation that
148 is being repeated moves to the front of the queue. */
151 unsigned char *reloc;
155 /* This fully describes the symbol types which may be attached to
156 an EXPORT or IMPORT directive. Only SOM uses this formation
157 (ELF has no need for it). */
161 SYMBOL_TYPE_ABSOLUTE,
165 SYMBOL_TYPE_MILLICODE,
167 SYMBOL_TYPE_PRI_PROG,
168 SYMBOL_TYPE_SEC_PROG,
171 struct section_to_type
177 /* Assorted symbol information that needs to be derived from the BFD symbol
178 and/or the BFD backend private symbol data. */
179 struct som_misc_symbol_info
181 unsigned int symbol_type;
182 unsigned int symbol_scope;
183 unsigned int arg_reloc;
184 unsigned int symbol_info;
185 unsigned int symbol_value;
186 unsigned int priv_level;
187 unsigned int secondary_def;
188 unsigned int is_comdat;
189 unsigned int is_common;
190 unsigned int dup_common;
193 /* Map SOM section names to POSIX/BSD single-character symbol types.
195 This table includes all the standard subspaces as defined in the
196 current "PRO ABI for PA-RISC Systems", $UNWIND$ which for
197 some reason was left out, and sections specific to embedded stabs. */
199 static const struct section_to_type stt[] =
202 {"$SHLIB_INFO$", 't'},
203 {"$MILLICODE$", 't'},
206 {"$UNWIND_START$", 't'},
210 {"$SHLIB_DATA$", 'd'},
212 {"$SHORTDATA$", 'g'},
217 {"$GDB_STRINGS$", 'N'},
218 {"$GDB_SYMBOLS$", 'N'},
222 /* About the relocation formatting table...
224 There are 256 entries in the table, one for each possible
225 relocation opcode available in SOM. We index the table by
226 the relocation opcode. The names and operations are those
227 defined by a.out_800 (4).
229 Right now this table is only used to count and perform minimal
230 processing on relocation streams so that they can be internalized
231 into BFD and symbolically printed by utilities. To make actual use
232 of them would be much more difficult, BFD's concept of relocations
233 is far too simple to handle SOM relocations. The basic assumption
234 that a relocation can be completely processed independent of other
235 relocations before an object file is written is invalid for SOM.
237 The SOM relocations are meant to be processed as a stream, they
238 specify copying of data from the input section to the output section
239 while possibly modifying the data in some manner. They also can
240 specify that a variable number of zeros or uninitialized data be
241 inserted on in the output segment at the current offset. Some
242 relocations specify that some previous relocation be re-applied at
243 the current location in the input/output sections. And finally a number
244 of relocations have effects on other sections (R_ENTRY, R_EXIT,
245 R_UNWIND_AUX and a variety of others). There isn't even enough room
246 in the BFD relocation data structure to store enough information to
247 perform all the relocations.
249 Each entry in the table has three fields.
251 The first entry is an index into this "class" of relocations. This
252 index can then be used as a variable within the relocation itself.
254 The second field is a format string which actually controls processing
255 of the relocation. It uses a simple postfix machine to do calculations
256 based on variables/constants found in the string and the relocation
259 The third field specifys whether or not this relocation may use
260 a constant (V) from the previous R_DATA_OVERRIDE rather than a constant
261 stored in the instruction.
265 L = input space byte count
266 D = index into class of relocations
267 M = output space byte count
268 N = statement number (unused?)
270 R = parameter relocation bits
272 T = first 32 bits of stack unwind information
273 U = second 32 bits of stack unwind information
274 V = a literal constant (usually used in the next relocation)
275 P = a previous relocation
277 Lower case letters (starting with 'b') refer to following
278 bytes in the relocation stream. 'b' is the next 1 byte,
279 c is the next 2 bytes, d is the next 3 bytes, etc...
280 This is the variable part of the relocation entries that
281 makes our life a living hell.
283 numerical constants are also used in the format string. Note
284 the constants are represented in decimal.
286 '+', "*" and "=" represents the obvious postfix operators.
287 '<' represents a left shift.
291 Parameter Relocation Bits:
295 Previous Relocations: The index field represents which in the queue
296 of 4 previous fixups should be re-applied.
298 Literal Constants: These are generally used to represent addend
299 parts of relocations when these constants are not stored in the
300 fields of the instructions themselves. For example the instruction
301 addil foo-$global$-0x1234 would use an override for "0x1234" rather
302 than storing it into the addil itself. */
310 static const struct fixup_format som_fixup_formats[256] =
312 /* R_NO_RELOCATION. */
313 { 0, "LD1+4*=" }, /* 0x00 */
314 { 1, "LD1+4*=" }, /* 0x01 */
315 { 2, "LD1+4*=" }, /* 0x02 */
316 { 3, "LD1+4*=" }, /* 0x03 */
317 { 4, "LD1+4*=" }, /* 0x04 */
318 { 5, "LD1+4*=" }, /* 0x05 */
319 { 6, "LD1+4*=" }, /* 0x06 */
320 { 7, "LD1+4*=" }, /* 0x07 */
321 { 8, "LD1+4*=" }, /* 0x08 */
322 { 9, "LD1+4*=" }, /* 0x09 */
323 { 10, "LD1+4*=" }, /* 0x0a */
324 { 11, "LD1+4*=" }, /* 0x0b */
325 { 12, "LD1+4*=" }, /* 0x0c */
326 { 13, "LD1+4*=" }, /* 0x0d */
327 { 14, "LD1+4*=" }, /* 0x0e */
328 { 15, "LD1+4*=" }, /* 0x0f */
329 { 16, "LD1+4*=" }, /* 0x10 */
330 { 17, "LD1+4*=" }, /* 0x11 */
331 { 18, "LD1+4*=" }, /* 0x12 */
332 { 19, "LD1+4*=" }, /* 0x13 */
333 { 20, "LD1+4*=" }, /* 0x14 */
334 { 21, "LD1+4*=" }, /* 0x15 */
335 { 22, "LD1+4*=" }, /* 0x16 */
336 { 23, "LD1+4*=" }, /* 0x17 */
337 { 0, "LD8<b+1+4*=" }, /* 0x18 */
338 { 1, "LD8<b+1+4*=" }, /* 0x19 */
339 { 2, "LD8<b+1+4*=" }, /* 0x1a */
340 { 3, "LD8<b+1+4*=" }, /* 0x1b */
341 { 0, "LD16<c+1+4*=" }, /* 0x1c */
342 { 1, "LD16<c+1+4*=" }, /* 0x1d */
343 { 2, "LD16<c+1+4*=" }, /* 0x1e */
344 { 0, "Ld1+=" }, /* 0x1f */
346 { 0, "Lb1+4*=" }, /* 0x20 */
347 { 1, "Ld1+=" }, /* 0x21 */
349 { 0, "Lb1+4*=" }, /* 0x22 */
350 { 1, "Ld1+=" }, /* 0x23 */
352 { 0, "L4=" }, /* 0x24 */
353 /* R_DATA_ONE_SYMBOL. */
354 { 0, "L4=Sb=" }, /* 0x25 */
355 { 1, "L4=Sd=" }, /* 0x26 */
357 { 0, "L4=Sb=" }, /* 0x27 */
358 { 1, "L4=Sd=" }, /* 0x28 */
360 { 0, "L4=" }, /* 0x29 */
361 /* R_REPEATED_INIT. */
362 { 0, "L4=Mb1+4*=" }, /* 0x2a */
363 { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */
364 { 2, "Lb4*=Md1+4*=" }, /* 0x2c */
365 { 3, "Ld1+=Me1+=" }, /* 0x2d */
366 { 0, "" }, /* 0x2e */
367 { 0, "" }, /* 0x2f */
369 { 0, "L4=RD=Sb=" }, /* 0x30 */
370 { 1, "L4=RD=Sb=" }, /* 0x31 */
371 { 2, "L4=RD=Sb=" }, /* 0x32 */
372 { 3, "L4=RD=Sb=" }, /* 0x33 */
373 { 4, "L4=RD=Sb=" }, /* 0x34 */
374 { 5, "L4=RD=Sb=" }, /* 0x35 */
375 { 6, "L4=RD=Sb=" }, /* 0x36 */
376 { 7, "L4=RD=Sb=" }, /* 0x37 */
377 { 8, "L4=RD=Sb=" }, /* 0x38 */
378 { 9, "L4=RD=Sb=" }, /* 0x39 */
379 { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */
380 { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */
381 { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */
382 { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */
383 /* R_SHORT_PCREL_MODE. */
384 { 0, "" }, /* 0x3e */
385 /* R_LONG_PCREL_MODE. */
386 { 0, "" }, /* 0x3f */
388 { 0, "L4=RD=Sb=" }, /* 0x40 */
389 { 1, "L4=RD=Sb=" }, /* 0x41 */
390 { 2, "L4=RD=Sb=" }, /* 0x42 */
391 { 3, "L4=RD=Sb=" }, /* 0x43 */
392 { 4, "L4=RD=Sb=" }, /* 0x44 */
393 { 5, "L4=RD=Sb=" }, /* 0x45 */
394 { 6, "L4=RD=Sb=" }, /* 0x46 */
395 { 7, "L4=RD=Sb=" }, /* 0x47 */
396 { 8, "L4=RD=Sb=" }, /* 0x48 */
397 { 9, "L4=RD=Sb=" }, /* 0x49 */
398 { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */
399 { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */
400 { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */
401 { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */
403 { 0, "" }, /* 0x4e */
404 { 0, "" }, /* 0x4f */
406 { 0, "L4=SD=" }, /* 0x50 */
407 { 1, "L4=SD=" }, /* 0x51 */
408 { 2, "L4=SD=" }, /* 0x52 */
409 { 3, "L4=SD=" }, /* 0x53 */
410 { 4, "L4=SD=" }, /* 0x54 */
411 { 5, "L4=SD=" }, /* 0x55 */
412 { 6, "L4=SD=" }, /* 0x56 */
413 { 7, "L4=SD=" }, /* 0x57 */
414 { 8, "L4=SD=" }, /* 0x58 */
415 { 9, "L4=SD=" }, /* 0x59 */
416 { 10, "L4=SD=" }, /* 0x5a */
417 { 11, "L4=SD=" }, /* 0x5b */
418 { 12, "L4=SD=" }, /* 0x5c */
419 { 13, "L4=SD=" }, /* 0x5d */
420 { 14, "L4=SD=" }, /* 0x5e */
421 { 15, "L4=SD=" }, /* 0x5f */
422 { 16, "L4=SD=" }, /* 0x60 */
423 { 17, "L4=SD=" }, /* 0x61 */
424 { 18, "L4=SD=" }, /* 0x62 */
425 { 19, "L4=SD=" }, /* 0x63 */
426 { 20, "L4=SD=" }, /* 0x64 */
427 { 21, "L4=SD=" }, /* 0x65 */
428 { 22, "L4=SD=" }, /* 0x66 */
429 { 23, "L4=SD=" }, /* 0x67 */
430 { 24, "L4=SD=" }, /* 0x68 */
431 { 25, "L4=SD=" }, /* 0x69 */
432 { 26, "L4=SD=" }, /* 0x6a */
433 { 27, "L4=SD=" }, /* 0x6b */
434 { 28, "L4=SD=" }, /* 0x6c */
435 { 29, "L4=SD=" }, /* 0x6d */
436 { 30, "L4=SD=" }, /* 0x6e */
437 { 31, "L4=SD=" }, /* 0x6f */
438 { 32, "L4=Sb=" }, /* 0x70 */
439 { 33, "L4=Sd=" }, /* 0x71 */
441 { 0, "" }, /* 0x72 */
442 { 0, "" }, /* 0x73 */
443 { 0, "" }, /* 0x74 */
444 { 0, "" }, /* 0x75 */
445 { 0, "" }, /* 0x76 */
446 { 0, "" }, /* 0x77 */
448 { 0, "L4=Sb=" }, /* 0x78 */
449 { 1, "L4=Sd=" }, /* 0x79 */
451 { 0, "" }, /* 0x7a */
452 { 0, "" }, /* 0x7b */
453 { 0, "" }, /* 0x7c */
454 { 0, "" }, /* 0x7d */
455 { 0, "" }, /* 0x7e */
456 { 0, "" }, /* 0x7f */
457 /* R_CODE_ONE_SYMBOL. */
458 { 0, "L4=SD=" }, /* 0x80 */
459 { 1, "L4=SD=" }, /* 0x81 */
460 { 2, "L4=SD=" }, /* 0x82 */
461 { 3, "L4=SD=" }, /* 0x83 */
462 { 4, "L4=SD=" }, /* 0x84 */
463 { 5, "L4=SD=" }, /* 0x85 */
464 { 6, "L4=SD=" }, /* 0x86 */
465 { 7, "L4=SD=" }, /* 0x87 */
466 { 8, "L4=SD=" }, /* 0x88 */
467 { 9, "L4=SD=" }, /* 0x89 */
468 { 10, "L4=SD=" }, /* 0x8q */
469 { 11, "L4=SD=" }, /* 0x8b */
470 { 12, "L4=SD=" }, /* 0x8c */
471 { 13, "L4=SD=" }, /* 0x8d */
472 { 14, "L4=SD=" }, /* 0x8e */
473 { 15, "L4=SD=" }, /* 0x8f */
474 { 16, "L4=SD=" }, /* 0x90 */
475 { 17, "L4=SD=" }, /* 0x91 */
476 { 18, "L4=SD=" }, /* 0x92 */
477 { 19, "L4=SD=" }, /* 0x93 */
478 { 20, "L4=SD=" }, /* 0x94 */
479 { 21, "L4=SD=" }, /* 0x95 */
480 { 22, "L4=SD=" }, /* 0x96 */
481 { 23, "L4=SD=" }, /* 0x97 */
482 { 24, "L4=SD=" }, /* 0x98 */
483 { 25, "L4=SD=" }, /* 0x99 */
484 { 26, "L4=SD=" }, /* 0x9a */
485 { 27, "L4=SD=" }, /* 0x9b */
486 { 28, "L4=SD=" }, /* 0x9c */
487 { 29, "L4=SD=" }, /* 0x9d */
488 { 30, "L4=SD=" }, /* 0x9e */
489 { 31, "L4=SD=" }, /* 0x9f */
490 { 32, "L4=Sb=" }, /* 0xa0 */
491 { 33, "L4=Sd=" }, /* 0xa1 */
493 { 0, "" }, /* 0xa2 */
494 { 0, "" }, /* 0xa3 */
495 { 0, "" }, /* 0xa4 */
496 { 0, "" }, /* 0xa5 */
497 { 0, "" }, /* 0xa6 */
498 { 0, "" }, /* 0xa7 */
499 { 0, "" }, /* 0xa8 */
500 { 0, "" }, /* 0xa9 */
501 { 0, "" }, /* 0xaa */
502 { 0, "" }, /* 0xab */
503 { 0, "" }, /* 0xac */
504 { 0, "" }, /* 0xad */
506 { 0, "L4=Sb=" }, /* 0xae */
507 { 1, "L4=Sd=" }, /* 0xaf */
509 { 0, "L4=Sb=" }, /* 0xb0 */
510 { 1, "L4=Sd=" }, /* 0xb1 */
512 { 0, "L4=" }, /* 0xb2 */
514 { 0, "Te=Ue=" }, /* 0xb3 */
515 { 1, "Uf=" }, /* 0xb4 */
517 { 0, "" }, /* 0xb5 */
519 { 0, "" }, /* 0xb6 */
521 { 0, "" }, /* 0xb7 */
523 { 0, "R0=" }, /* 0xb8 */
524 { 1, "Rb4*=" }, /* 0xb9 */
525 { 2, "Rd4*=" }, /* 0xba */
527 { 0, "" }, /* 0xbb */
529 { 0, "" }, /* 0xbc */
531 { 0, "Nb=" }, /* 0xbd */
532 { 1, "Nc=" }, /* 0xbe */
533 { 2, "Nd=" }, /* 0xbf */
535 { 0, "L4=" }, /* 0xc0 */
537 { 0, "L4=" }, /* 0xc1 */
539 { 0, "" }, /* 0xc2 */
541 { 0, "" }, /* 0xc3 */
543 { 0, "" }, /* 0xc4 */
545 { 0, "" }, /* 0xc5 */
547 { 0, "" }, /* 0xc6 */
549 { 0, "" }, /* 0xc7 */
551 { 0, "" }, /* 0xc8 */
552 /* R_DATA_OVERRIDE. */
553 { 0, "V0=" }, /* 0xc9 */
554 { 1, "Vb=" }, /* 0xca */
555 { 2, "Vc=" }, /* 0xcb */
556 { 3, "Vd=" }, /* 0xcc */
557 { 4, "Ve=" }, /* 0xcd */
559 { 0, "" }, /* 0xce */
561 { 0,"Sd=Ve=Ee=" }, /* 0xcf */
563 { 0, "Ob=" }, /* 0xd0 */
565 { 0, "Ob=Sd=" }, /* 0xd1 */
567 { 0, "Ob=Ve=" }, /* 0xd2 */
569 { 0, "P" }, /* 0xd3 */
570 { 1, "P" }, /* 0xd4 */
571 { 2, "P" }, /* 0xd5 */
572 { 3, "P" }, /* 0xd6 */
574 { 0, "" }, /* 0xd7 */
576 { 0, "" }, /* 0xd8 */
578 { 0, "" }, /* 0xd9 */
580 { 0, "Eb=Sd=Ve=" }, /* 0xda */
582 { 0, "Eb=Mb=" }, /* 0xdb */
583 /* R_LTP_OVERRIDE. */
584 { 0, "" }, /* 0xdc */
586 { 0, "Ob=Vf=" }, /* 0xdd */
588 { 0, "" }, /* 0xde */
589 { 0, "" }, /* 0xdf */
590 { 0, "" }, /* 0xe0 */
591 { 0, "" }, /* 0xe1 */
592 { 0, "" }, /* 0xe2 */
593 { 0, "" }, /* 0xe3 */
594 { 0, "" }, /* 0xe4 */
595 { 0, "" }, /* 0xe5 */
596 { 0, "" }, /* 0xe6 */
597 { 0, "" }, /* 0xe7 */
598 { 0, "" }, /* 0xe8 */
599 { 0, "" }, /* 0xe9 */
600 { 0, "" }, /* 0xea */
601 { 0, "" }, /* 0xeb */
602 { 0, "" }, /* 0xec */
603 { 0, "" }, /* 0xed */
604 { 0, "" }, /* 0xee */
605 { 0, "" }, /* 0xef */
606 { 0, "" }, /* 0xf0 */
607 { 0, "" }, /* 0xf1 */
608 { 0, "" }, /* 0xf2 */
609 { 0, "" }, /* 0xf3 */
610 { 0, "" }, /* 0xf4 */
611 { 0, "" }, /* 0xf5 */
612 { 0, "" }, /* 0xf6 */
613 { 0, "" }, /* 0xf7 */
614 { 0, "" }, /* 0xf8 */
615 { 0, "" }, /* 0xf9 */
616 { 0, "" }, /* 0xfa */
617 { 0, "" }, /* 0xfb */
618 { 0, "" }, /* 0xfc */
619 { 0, "" }, /* 0xfd */
620 { 0, "" }, /* 0xfe */
621 { 0, "" }, /* 0xff */
624 static const int comp1_opcodes[] =
646 static const int comp2_opcodes[] =
655 static const int comp3_opcodes[] =
662 /* These apparently are not in older versions of hpux reloc.h (hpux7). */
664 #define R_DLT_REL 0x78
668 #define R_AUX_UNWIND 0xcf
672 #define R_SEC_STMT 0xd7
675 /* And these first appeared in hpux10. */
676 #ifndef R_SHORT_PCREL_MODE
677 #define NO_PCREL_MODES
678 #define R_SHORT_PCREL_MODE 0x3e
681 #ifndef R_LONG_PCREL_MODE
682 #define R_LONG_PCREL_MODE 0x3f
694 #define R_LINETAB 0xda
697 #ifndef R_LINETAB_ESC
698 #define R_LINETAB_ESC 0xdb
701 #ifndef R_LTP_OVERRIDE
702 #define R_LTP_OVERRIDE 0xdc
706 #define R_COMMENT 0xdd
709 #define SOM_HOWTO(TYPE, NAME) \
710 HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE)
712 static reloc_howto_type som_hppa_howto_table[] =
714 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
715 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
716 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
717 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
718 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
719 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
720 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
721 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
722 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
723 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
724 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
725 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
726 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
727 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
728 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
729 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
730 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
731 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
732 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
733 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
734 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
735 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
736 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
737 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
738 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
739 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
740 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
741 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
742 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
743 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
744 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
745 SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"),
746 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
747 SOM_HOWTO (R_ZEROES, "R_ZEROES"),
748 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
749 SOM_HOWTO (R_UNINIT, "R_UNINIT"),
750 SOM_HOWTO (R_RELOCATION, "R_RELOCATION"),
751 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
752 SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"),
753 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
754 SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"),
755 SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"),
756 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
757 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
758 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
759 SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"),
760 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
761 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
762 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
763 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
764 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
765 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
766 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
767 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
768 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
769 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
770 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
771 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
772 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
773 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
774 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
775 SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"),
776 SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"),
777 SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"),
778 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
779 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
780 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
781 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
782 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
783 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
784 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
785 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
786 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
787 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
788 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
789 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
790 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
791 SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"),
792 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
793 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
794 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
795 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
796 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
797 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
798 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
799 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
800 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
801 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
802 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
803 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
804 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
805 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
806 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
807 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
808 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
809 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
810 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
811 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
812 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
813 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
814 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
815 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
816 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
817 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
818 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
819 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
820 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
821 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
822 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
823 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
824 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
825 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
826 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
827 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
828 SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"),
829 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
830 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
831 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
832 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
833 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
834 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
835 SOM_HOWTO (R_DLT_REL, "R_DLT_REL"),
836 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
837 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
838 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
839 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
840 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
841 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
842 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
843 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
844 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
845 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
846 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
847 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
848 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
849 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
850 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
851 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
852 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
853 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
854 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
855 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
856 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
857 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
858 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
859 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
860 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
861 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
862 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
863 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
864 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
865 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
866 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
867 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
868 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
869 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
870 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
871 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
872 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
873 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
874 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
875 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
876 SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"),
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_MILLI_REL, "R_MILLI_REL"),
889 SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"),
890 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
891 SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"),
892 SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"),
893 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
894 SOM_HOWTO (R_ENTRY, "R_ENTRY"),
895 SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"),
896 SOM_HOWTO (R_EXIT, "R_EXIT"),
897 SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"),
898 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
899 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
900 SOM_HOWTO (R_END_TRY, "R_END_TRY"),
901 SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"),
902 SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"),
903 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
904 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
905 SOM_HOWTO (R_STATEMENT, "R_STATEMENT"),
906 SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"),
907 SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"),
908 SOM_HOWTO (R_FSEL, "R_FSEL"),
909 SOM_HOWTO (R_LSEL, "R_LSEL"),
910 SOM_HOWTO (R_RSEL, "R_RSEL"),
911 SOM_HOWTO (R_N_MODE, "R_N_MODE"),
912 SOM_HOWTO (R_S_MODE, "R_S_MODE"),
913 SOM_HOWTO (R_D_MODE, "R_D_MODE"),
914 SOM_HOWTO (R_R_MODE, "R_R_MODE"),
915 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
916 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
917 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
918 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
919 SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"),
920 SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"),
921 SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"),
922 SOM_HOWTO (R_COMP1, "R_COMP1"),
923 SOM_HOWTO (R_COMP2, "R_COMP2"),
924 SOM_HOWTO (R_COMP3, "R_COMP3"),
925 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
926 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
927 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
928 SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"),
929 SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"),
930 SOM_HOWTO (R_N0SEL, "R_N0SEL"),
931 SOM_HOWTO (R_N1SEL, "R_N1SEL"),
932 SOM_HOWTO (R_LINETAB, "R_LINETAB"),
933 SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"),
934 SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"),
935 SOM_HOWTO (R_COMMENT, "R_COMMENT"),
936 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
937 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
938 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
939 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
940 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
941 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
942 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
943 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
944 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
945 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
946 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
947 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
948 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
949 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
950 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
951 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
952 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
953 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
954 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
955 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
956 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
957 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
958 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
959 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
960 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
961 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
962 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
963 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
964 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
965 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
966 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
967 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
968 SOM_HOWTO (R_RESERVED, "R_RESERVED"),
969 SOM_HOWTO (R_RESERVED, "R_RESERVED")
972 /* Initialize the SOM relocation queue. By definition the queue holds
973 the last four multibyte fixups. */
976 som_initialize_reloc_queue (struct reloc_queue *queue)
978 queue[0].reloc = NULL;
980 queue[1].reloc = NULL;
982 queue[2].reloc = NULL;
984 queue[3].reloc = NULL;
988 /* Insert a new relocation into the relocation queue. */
991 som_reloc_queue_insert (unsigned char *p,
993 struct reloc_queue *queue)
995 queue[3].reloc = queue[2].reloc;
996 queue[3].size = queue[2].size;
997 queue[2].reloc = queue[1].reloc;
998 queue[2].size = queue[1].size;
999 queue[1].reloc = queue[0].reloc;
1000 queue[1].size = queue[0].size;
1002 queue[0].size = size;
1005 /* When an entry in the relocation queue is reused, the entry moves
1006 to the front of the queue. */
1009 som_reloc_queue_fix (struct reloc_queue *queue, unsigned int index)
1016 unsigned char *tmp1 = queue[0].reloc;
1017 unsigned int tmp2 = queue[0].size;
1019 queue[0].reloc = queue[1].reloc;
1020 queue[0].size = queue[1].size;
1021 queue[1].reloc = tmp1;
1022 queue[1].size = tmp2;
1028 unsigned char *tmp1 = queue[0].reloc;
1029 unsigned int tmp2 = queue[0].size;
1031 queue[0].reloc = queue[2].reloc;
1032 queue[0].size = queue[2].size;
1033 queue[2].reloc = queue[1].reloc;
1034 queue[2].size = queue[1].size;
1035 queue[1].reloc = tmp1;
1036 queue[1].size = tmp2;
1042 unsigned char *tmp1 = queue[0].reloc;
1043 unsigned int tmp2 = queue[0].size;
1045 queue[0].reloc = queue[3].reloc;
1046 queue[0].size = queue[3].size;
1047 queue[3].reloc = queue[2].reloc;
1048 queue[3].size = queue[2].size;
1049 queue[2].reloc = queue[1].reloc;
1050 queue[2].size = queue[1].size;
1051 queue[1].reloc = tmp1;
1052 queue[1].size = tmp2;
1058 /* Search for a particular relocation in the relocation queue. */
1061 som_reloc_queue_find (unsigned char *p,
1063 struct reloc_queue *queue)
1065 if (queue[0].reloc && !memcmp (p, queue[0].reloc, size)
1066 && size == queue[0].size)
1068 if (queue[1].reloc && !memcmp (p, queue[1].reloc, size)
1069 && size == queue[1].size)
1071 if (queue[2].reloc && !memcmp (p, queue[2].reloc, size)
1072 && size == queue[2].size)
1074 if (queue[3].reloc && !memcmp (p, queue[3].reloc, size)
1075 && size == queue[3].size)
1080 static unsigned char *
1081 try_prev_fixup (bfd *abfd ATTRIBUTE_UNUSED,
1082 unsigned int *subspace_reloc_sizep,
1085 struct reloc_queue *queue)
1087 int queue_index = som_reloc_queue_find (p, size, queue);
1089 if (queue_index != -1)
1091 /* Found this in a previous fixup. Undo the fixup we
1092 just built and use R_PREV_FIXUP instead. We saved
1093 a total of size - 1 bytes in the fixup stream. */
1094 bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p);
1096 *subspace_reloc_sizep += 1;
1097 som_reloc_queue_fix (queue, queue_index);
1101 som_reloc_queue_insert (p, size, queue);
1102 *subspace_reloc_sizep += size;
1108 /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP
1109 bytes without any relocation. Update the size of the subspace
1110 relocation stream via SUBSPACE_RELOC_SIZE_P; also return the
1111 current pointer into the relocation stream. */
1113 static unsigned char *
1114 som_reloc_skip (bfd *abfd,
1117 unsigned int *subspace_reloc_sizep,
1118 struct reloc_queue *queue)
1120 /* Use a 4 byte R_NO_RELOCATION entry with a maximal value
1121 then R_PREV_FIXUPs to get the difference down to a
1123 if (skip >= 0x1000000)
1126 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1127 bfd_put_8 (abfd, 0xff, p + 1);
1128 bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2);
1129 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1130 while (skip >= 0x1000000)
1133 bfd_put_8 (abfd, R_PREV_FIXUP, p);
1135 *subspace_reloc_sizep += 1;
1136 /* No need to adjust queue here since we are repeating the
1137 most recent fixup. */
1141 /* The difference must be less than 0x1000000. Use one
1142 more R_NO_RELOCATION entry to get to the right difference. */
1143 if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0)
1145 /* Difference can be handled in a simple single-byte
1146 R_NO_RELOCATION entry. */
1149 bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p);
1150 *subspace_reloc_sizep += 1;
1153 /* Handle it with a two byte R_NO_RELOCATION entry. */
1154 else if (skip <= 0x1000)
1156 bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p);
1157 bfd_put_8 (abfd, (skip >> 2) - 1, p + 1);
1158 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1160 /* Handle it with a three byte R_NO_RELOCATION entry. */
1163 bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p);
1164 bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1);
1165 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1168 /* Ugh. Punt and use a 4 byte entry. */
1171 bfd_put_8 (abfd, R_NO_RELOCATION + 31, p);
1172 bfd_put_8 (abfd, (skip - 1) >> 16, p + 1);
1173 bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2);
1174 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1179 /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend
1180 from a BFD relocation. Update the size of the subspace relocation
1181 stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer
1182 into the relocation stream. */
1184 static unsigned char *
1185 som_reloc_addend (bfd *abfd,
1188 unsigned int *subspace_reloc_sizep,
1189 struct reloc_queue *queue)
1191 if (addend + 0x80 < 0x100)
1193 bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p);
1194 bfd_put_8 (abfd, addend, p + 1);
1195 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1197 else if (addend + 0x8000 < 0x10000)
1199 bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p);
1200 bfd_put_16 (abfd, addend, p + 1);
1201 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1203 else if (addend + 0x800000 < 0x1000000)
1205 bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p);
1206 bfd_put_8 (abfd, addend >> 16, p + 1);
1207 bfd_put_16 (abfd, addend, p + 2);
1208 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue);
1212 bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p);
1213 bfd_put_32 (abfd, addend, p + 1);
1214 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1219 /* Handle a single function call relocation. */
1221 static unsigned char *
1222 som_reloc_call (bfd *abfd,
1224 unsigned int *subspace_reloc_sizep,
1227 struct reloc_queue *queue)
1229 int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend);
1230 int rtn_bits = arg_bits & 0x3;
1233 /* You'll never believe all this is necessary to handle relocations
1234 for function calls. Having to compute and pack the argument
1235 relocation bits is the real nightmare.
1237 If you're interested in how this works, just forget it. You really
1238 do not want to know about this braindamage. */
1240 /* First see if this can be done with a "simple" relocation. Simple
1241 relocations have a symbol number < 0x100 and have simple encodings
1242 of argument relocations. */
1244 if (sym_num < 0x100)
1256 case 1 << 8 | 1 << 6:
1257 case 1 << 8 | 1 << 6 | 1:
1260 case 1 << 8 | 1 << 6 | 1 << 4:
1261 case 1 << 8 | 1 << 6 | 1 << 4 | 1:
1264 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2:
1265 case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1:
1269 /* Not one of the easy encodings. This will have to be
1270 handled by the more complex code below. */
1276 /* Account for the return value too. */
1280 /* Emit a 2 byte relocation. Then see if it can be handled
1281 with a relocation which is already in the relocation queue. */
1282 bfd_put_8 (abfd, bfd_reloc->howto->type + type, p);
1283 bfd_put_8 (abfd, sym_num, p + 1);
1284 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue);
1289 /* If this could not be handled with a simple relocation, then do a hard
1290 one. Hard relocations occur if the symbol number was too high or if
1291 the encoding of argument relocation bits is too complex. */
1294 /* Don't ask about these magic sequences. I took them straight
1295 from gas-1.36 which took them from the a.out man page. */
1297 if ((arg_bits >> 6 & 0xf) == 0xe)
1300 type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40;
1301 if ((arg_bits >> 2 & 0xf) == 0xe)
1304 type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4;
1306 /* Output the first two bytes of the relocation. These describe
1307 the length of the relocation and encoding style. */
1308 bfd_put_8 (abfd, bfd_reloc->howto->type + 10
1309 + 2 * (sym_num >= 0x100) + (type >= 0x100),
1311 bfd_put_8 (abfd, type, p + 1);
1313 /* Now output the symbol index and see if this bizarre relocation
1314 just happened to be in the relocation queue. */
1315 if (sym_num < 0x100)
1317 bfd_put_8 (abfd, sym_num, p + 2);
1318 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue);
1322 bfd_put_8 (abfd, sym_num >> 16, p + 2);
1323 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
1324 p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue);
1330 /* Return the logarithm of X, base 2, considering X unsigned,
1331 if X is a power of 2. Otherwise, returns -1. */
1334 exact_log2 (unsigned int x)
1338 /* Test for 0 or a power of 2. */
1339 if (x == 0 || x != (x & -x))
1342 while ((x >>= 1) != 0)
1347 static bfd_reloc_status_type
1348 hppa_som_reloc (bfd *abfd ATTRIBUTE_UNUSED,
1349 arelent *reloc_entry,
1350 asymbol *symbol_in ATTRIBUTE_UNUSED,
1351 void *data ATTRIBUTE_UNUSED,
1352 asection *input_section,
1354 char **error_message ATTRIBUTE_UNUSED)
1357 reloc_entry->address += input_section->output_offset;
1359 return bfd_reloc_ok;
1362 /* Given a generic HPPA relocation type, the instruction format,
1363 and a field selector, return one or more appropriate SOM relocations. */
1366 hppa_som_gen_reloc_type (bfd *abfd,
1369 enum hppa_reloc_field_selector_type_alt field,
1373 int *final_type, **final_types;
1375 final_types = bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6);
1376 final_type = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1377 if (!final_types || !final_type)
1380 /* The field selector may require additional relocations to be
1381 generated. It's impossible to know at this moment if additional
1382 relocations will be needed, so we make them. The code to actually
1383 write the relocation/fixup stream is responsible for removing
1384 any redundant relocations. */
1391 final_types[0] = final_type;
1392 final_types[1] = NULL;
1393 final_types[2] = NULL;
1394 *final_type = base_type;
1400 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1401 if (!final_types[0])
1403 if (field == e_tsel)
1404 *final_types[0] = R_FSEL;
1405 else if (field == e_ltsel)
1406 *final_types[0] = R_LSEL;
1408 *final_types[0] = R_RSEL;
1409 final_types[1] = final_type;
1410 final_types[2] = NULL;
1411 *final_type = base_type;
1416 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1417 if (!final_types[0])
1419 *final_types[0] = R_S_MODE;
1420 final_types[1] = final_type;
1421 final_types[2] = NULL;
1422 *final_type = base_type;
1427 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1428 if (!final_types[0])
1430 *final_types[0] = R_N_MODE;
1431 final_types[1] = final_type;
1432 final_types[2] = NULL;
1433 *final_type = base_type;
1438 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1439 if (!final_types[0])
1441 *final_types[0] = R_D_MODE;
1442 final_types[1] = final_type;
1443 final_types[2] = NULL;
1444 *final_type = base_type;
1449 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1450 if (!final_types[0])
1452 *final_types[0] = R_R_MODE;
1453 final_types[1] = final_type;
1454 final_types[2] = NULL;
1455 *final_type = base_type;
1459 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1460 if (!final_types[0])
1462 *final_types[0] = R_N1SEL;
1463 final_types[1] = final_type;
1464 final_types[2] = NULL;
1465 *final_type = base_type;
1470 final_types[0] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1471 if (!final_types[0])
1473 *final_types[0] = R_N0SEL;
1474 final_types[1] = bfd_alloc (abfd, (bfd_size_type) sizeof (int));
1475 if (!final_types[1])
1477 if (field == e_nlsel)
1478 *final_types[1] = R_N_MODE;
1480 *final_types[1] = R_R_MODE;
1481 final_types[2] = final_type;
1482 final_types[3] = NULL;
1483 *final_type = base_type;
1486 /* FIXME: These two field selectors are not currently supported. */
1495 /* The difference of two symbols needs *very* special handling. */
1498 bfd_size_type amt = sizeof (int);
1500 final_types[0] = bfd_alloc (abfd, amt);
1501 final_types[1] = bfd_alloc (abfd, amt);
1502 final_types[2] = bfd_alloc (abfd, amt);
1503 final_types[3] = bfd_alloc (abfd, amt);
1504 if (!final_types[0] || !final_types[1] || !final_types[2])
1506 if (field == e_fsel)
1507 *final_types[0] = R_FSEL;
1508 else if (field == e_rsel)
1509 *final_types[0] = R_RSEL;
1510 else if (field == e_lsel)
1511 *final_types[0] = R_LSEL;
1512 *final_types[1] = R_COMP2;
1513 *final_types[2] = R_COMP2;
1514 *final_types[3] = R_COMP1;
1515 final_types[4] = final_type;
1517 *final_types[4] = R_DATA_EXPR;
1519 *final_types[4] = R_CODE_EXPR;
1520 final_types[5] = NULL;
1523 /* PLABELs get their own relocation type. */
1524 else if (field == e_psel
1526 || field == e_rpsel)
1528 /* A PLABEL relocation that has a size of 32 bits must
1529 be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */
1531 *final_type = R_DATA_PLABEL;
1533 *final_type = R_CODE_PLABEL;
1536 else if (field == e_tsel
1538 || field == e_rtsel)
1539 *final_type = R_DLT_REL;
1540 /* A relocation in the data space is always a full 32bits. */
1541 else if (format == 32)
1543 *final_type = R_DATA_ONE_SYMBOL;
1545 /* If there's no SOM symbol type associated with this BFD
1546 symbol, then set the symbol type to ST_DATA.
1548 Only do this if the type is going to default later when
1549 we write the object file.
1551 This is done so that the linker never encounters an
1552 R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol.
1554 This allows the compiler to generate exception handling
1557 Note that one day we may need to also emit BEGIN_BRTAB and
1558 END_BRTAB to prevent the linker from optimizing away insns
1559 in exception handling regions. */
1560 if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
1561 && (sym->flags & BSF_SECTION_SYM) == 0
1562 && (sym->flags & BSF_FUNCTION) == 0
1563 && ! bfd_is_com_section (sym->section))
1564 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
1569 /* More PLABEL special cases. */
1572 || field == e_rpsel)
1573 *final_type = R_DATA_PLABEL;
1576 case R_HPPA_COMPLEX:
1577 /* The difference of two symbols needs *very* special handling. */
1580 bfd_size_type amt = sizeof (int);
1582 final_types[0] = bfd_alloc (abfd, amt);
1583 final_types[1] = bfd_alloc (abfd, amt);
1584 final_types[2] = bfd_alloc (abfd, amt);
1585 final_types[3] = bfd_alloc (abfd, amt);
1586 if (!final_types[0] || !final_types[1] || !final_types[2])
1588 if (field == e_fsel)
1589 *final_types[0] = R_FSEL;
1590 else if (field == e_rsel)
1591 *final_types[0] = R_RSEL;
1592 else if (field == e_lsel)
1593 *final_types[0] = R_LSEL;
1594 *final_types[1] = R_COMP2;
1595 *final_types[2] = R_COMP2;
1596 *final_types[3] = R_COMP1;
1597 final_types[4] = final_type;
1599 *final_types[4] = R_DATA_EXPR;
1601 *final_types[4] = R_CODE_EXPR;
1602 final_types[5] = NULL;
1609 case R_HPPA_ABS_CALL:
1610 /* Right now we can default all these. */
1613 case R_HPPA_PCREL_CALL:
1615 #ifndef NO_PCREL_MODES
1616 /* If we have short and long pcrel modes, then generate the proper
1617 mode selector, then the pcrel relocation. Redundant selectors
1618 will be eliminated as the relocs are sized and emitted. */
1619 bfd_size_type amt = sizeof (int);
1621 final_types[0] = bfd_alloc (abfd, amt);
1622 if (!final_types[0])
1625 *final_types[0] = R_SHORT_PCREL_MODE;
1627 *final_types[0] = R_LONG_PCREL_MODE;
1628 final_types[1] = final_type;
1629 final_types[2] = NULL;
1630 *final_type = base_type;
1638 /* Return the address of the correct entry in the PA SOM relocation
1641 static reloc_howto_type *
1642 som_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1643 bfd_reloc_code_real_type code)
1645 if ((int) code < (int) R_NO_RELOCATION + 255)
1647 BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code);
1648 return &som_hppa_howto_table[(int) code];
1654 static reloc_howto_type *
1655 som_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1661 i < sizeof (som_hppa_howto_table) / sizeof (som_hppa_howto_table[0]);
1663 if (som_hppa_howto_table[i].name != NULL
1664 && strcasecmp (som_hppa_howto_table[i].name, r_name) == 0)
1665 return &som_hppa_howto_table[i];
1670 /* Perform some initialization for an object. Save results of this
1671 initialization in the BFD. */
1673 static const bfd_target *
1674 som_object_setup (bfd *abfd,
1675 struct header *file_hdrp,
1676 struct som_exec_auxhdr *aux_hdrp,
1677 unsigned long current_offset)
1681 /* som_mkobject will set bfd_error if som_mkobject fails. */
1682 if (! som_mkobject (abfd))
1685 /* Set BFD flags based on what information is available in the SOM. */
1686 abfd->flags = BFD_NO_FLAGS;
1687 if (file_hdrp->symbol_total)
1688 abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
1690 switch (file_hdrp->a_magic)
1693 abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P);
1696 abfd->flags |= (WP_TEXT | EXEC_P);
1699 abfd->flags |= (EXEC_P);
1702 abfd->flags |= HAS_RELOC;
1710 abfd->flags |= DYNAMIC;
1717 /* Save the auxiliary header. */
1718 obj_som_exec_hdr (abfd) = aux_hdrp;
1720 /* Allocate space to hold the saved exec header information. */
1721 obj_som_exec_data (abfd) = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data));
1722 if (obj_som_exec_data (abfd) == NULL)
1725 /* The braindamaged OSF1 linker switched exec_flags and exec_entry!
1727 We used to identify OSF1 binaries based on NEW_VERSION_ID, but
1728 apparently the latest HPUX linker is using NEW_VERSION_ID now.
1730 It's about time, OSF has used the new id since at least 1992;
1731 HPUX didn't start till nearly 1995!.
1733 The new approach examines the entry field for an executable. If
1734 it is not 4-byte aligned then it's not a proper code address and
1735 we guess it's really the executable flags. For a main program,
1736 we also consider zero to be indicative of a buggy linker, since
1737 that is not a valid entry point. The entry point for a shared
1738 library, however, can be zero so we do not consider that to be
1739 indicative of a buggy linker. */
1744 for (section = abfd->sections; section; section = section->next)
1748 if ((section->flags & SEC_CODE) == 0)
1750 entry = aux_hdrp->exec_entry + aux_hdrp->exec_tmem;
1751 if (entry >= section->vma
1752 && entry < section->vma + section->size)
1755 if ((aux_hdrp->exec_entry == 0 && !(abfd->flags & DYNAMIC))
1756 || (aux_hdrp->exec_entry & 0x3) != 0
1759 bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
1760 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;
1764 bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset;
1765 obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags;
1769 obj_som_exec_data (abfd)->version_id = file_hdrp->version_id;
1771 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10);
1772 bfd_get_symcount (abfd) = file_hdrp->symbol_total;
1774 /* Initialize the saved symbol table and string table to NULL.
1775 Save important offsets and sizes from the SOM header into
1777 obj_som_stringtab (abfd) = NULL;
1778 obj_som_symtab (abfd) = NULL;
1779 obj_som_sorted_syms (abfd) = NULL;
1780 obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size;
1781 obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset;
1782 obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location
1784 obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location
1786 obj_som_exec_data (abfd)->system_id = file_hdrp->system_id;
1791 /* Convert all of the space and subspace info into BFD sections. Each space
1792 contains a number of subspaces, which in turn describe the mapping between
1793 regions of the exec file, and the address space that the program runs in.
1794 BFD sections which correspond to spaces will overlap the sections for the
1795 associated subspaces. */
1798 setup_sections (bfd *abfd,
1799 struct header *file_hdr,
1800 unsigned long current_offset)
1802 char *space_strings;
1803 unsigned int space_index, i;
1804 unsigned int total_subspaces = 0;
1805 asection **subspace_sections = NULL;
1809 /* First, read in space names. */
1810 amt = file_hdr->space_strings_size;
1811 space_strings = bfd_malloc (amt);
1812 if (!space_strings && amt != 0)
1815 if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location,
1818 if (bfd_bread (space_strings, amt, abfd) != amt)
1821 /* Loop over all of the space dictionaries, building up sections. */
1822 for (space_index = 0; space_index < file_hdr->space_total; space_index++)
1824 struct space_dictionary_record space;
1825 struct som_subspace_dictionary_record subspace, save_subspace;
1826 unsigned int subspace_index;
1827 asection *space_asect;
1828 bfd_size_type space_size = 0;
1831 /* Read the space dictionary element. */
1833 (current_offset + file_hdr->space_location
1834 + space_index * sizeof space),
1838 if (bfd_bread (&space, amt, abfd) != amt)
1841 /* Setup the space name string. */
1842 space.name.n_name = space.name.n_strx + space_strings;
1844 /* Make a section out of it. */
1845 amt = strlen (space.name.n_name) + 1;
1846 newname = bfd_alloc (abfd, amt);
1849 strcpy (newname, space.name.n_name);
1851 space_asect = bfd_make_section_anyway (abfd, newname);
1855 if (space.is_loadable == 0)
1856 space_asect->flags |= SEC_DEBUGGING;
1858 /* Set up all the attributes for the space. */
1859 if (! bfd_som_set_section_attributes (space_asect, space.is_defined,
1860 space.is_private, space.sort_key,
1861 space.space_number))
1864 /* If the space has no subspaces, then we're done. */
1865 if (space.subspace_quantity == 0)
1868 /* Now, read in the first subspace for this space. */
1870 (current_offset + file_hdr->subspace_location
1871 + space.subspace_index * sizeof subspace),
1874 amt = sizeof subspace;
1875 if (bfd_bread (&subspace, amt, abfd) != amt)
1877 /* Seek back to the start of the subspaces for loop below. */
1879 (current_offset + file_hdr->subspace_location
1880 + space.subspace_index * sizeof subspace),
1884 /* Setup the start address and file loc from the first subspace
1886 space_asect->vma = subspace.subspace_start;
1887 space_asect->filepos = subspace.file_loc_init_value + current_offset;
1888 space_asect->alignment_power = exact_log2 (subspace.alignment);
1889 if (space_asect->alignment_power == (unsigned) -1)
1892 /* Initialize save_subspace so we can reliably determine if this
1893 loop placed any useful values into it. */
1894 memset (&save_subspace, 0, sizeof (save_subspace));
1896 /* Loop over the rest of the subspaces, building up more sections. */
1897 for (subspace_index = 0; subspace_index < space.subspace_quantity;
1900 asection *subspace_asect;
1902 /* Read in the next subspace. */
1903 amt = sizeof subspace;
1904 if (bfd_bread (&subspace, amt, abfd) != amt)
1907 /* Setup the subspace name string. */
1908 subspace.name.n_name = subspace.name.n_strx + space_strings;
1910 amt = strlen (subspace.name.n_name) + 1;
1911 newname = bfd_alloc (abfd, amt);
1914 strcpy (newname, subspace.name.n_name);
1916 /* Make a section out of this subspace. */
1917 subspace_asect = bfd_make_section_anyway (abfd, newname);
1918 if (!subspace_asect)
1921 /* Store private information about the section. */
1922 if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect,
1923 subspace.access_control_bits,
1928 subspace.dup_common))
1931 /* Keep an easy mapping between subspaces and sections.
1932 Note we do not necessarily read the subspaces in the
1933 same order in which they appear in the object file.
1935 So to make the target index come out correctly, we
1936 store the location of the subspace header in target
1937 index, then sort using the location of the subspace
1938 header as the key. Then we can assign correct
1939 subspace indices. */
1941 subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace);
1943 /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified
1944 by the access_control_bits in the subspace header. */
1945 switch (subspace.access_control_bits >> 4)
1947 /* Readonly data. */
1949 subspace_asect->flags |= SEC_DATA | SEC_READONLY;
1954 subspace_asect->flags |= SEC_DATA;
1957 /* Readonly code and the gateways.
1958 Gateways have other attributes which do not map
1959 into anything BFD knows about. */
1965 subspace_asect->flags |= SEC_CODE | SEC_READONLY;
1968 /* dynamic (writable) code. */
1970 subspace_asect->flags |= SEC_CODE;
1974 if (subspace.is_comdat || subspace.is_common || subspace.dup_common)
1975 subspace_asect->flags |= SEC_LINK_ONCE;
1977 if (subspace.subspace_length > 0)
1978 subspace_asect->flags |= SEC_HAS_CONTENTS;
1980 if (subspace.is_loadable)
1981 subspace_asect->flags |= SEC_ALLOC | SEC_LOAD;
1983 subspace_asect->flags |= SEC_DEBUGGING;
1985 if (subspace.code_only)
1986 subspace_asect->flags |= SEC_CODE;
1988 /* Both file_loc_init_value and initialization_length will
1989 be zero for a BSS like subspace. */
1990 if (subspace.file_loc_init_value == 0
1991 && subspace.initialization_length == 0)
1992 subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS);
1994 /* This subspace has relocations.
1995 The fixup_request_quantity is a byte count for the number of
1996 entries in the relocation stream; it is not the actual number
1997 of relocations in the subspace. */
1998 if (subspace.fixup_request_quantity != 0)
2000 subspace_asect->flags |= SEC_RELOC;
2001 subspace_asect->rel_filepos = subspace.fixup_request_index;
2002 som_section_data (subspace_asect)->reloc_size
2003 = subspace.fixup_request_quantity;
2004 /* We can not determine this yet. When we read in the
2005 relocation table the correct value will be filled in. */
2006 subspace_asect->reloc_count = (unsigned) -1;
2009 /* Update save_subspace if appropriate. */
2010 if (subspace.file_loc_init_value > save_subspace.file_loc_init_value)
2011 save_subspace = subspace;
2013 subspace_asect->vma = subspace.subspace_start;
2014 subspace_asect->size = subspace.subspace_length;
2015 subspace_asect->filepos = (subspace.file_loc_init_value
2017 subspace_asect->alignment_power = exact_log2 (subspace.alignment);
2018 if (subspace_asect->alignment_power == (unsigned) -1)
2021 /* Keep track of the accumulated sizes of the sections. */
2022 space_size += subspace.subspace_length;
2025 /* This can happen for a .o which defines symbols in otherwise
2027 if (!save_subspace.file_loc_init_value)
2028 space_asect->size = 0;
2031 if (file_hdr->a_magic != RELOC_MAGIC)
2033 /* Setup the size for the space section based upon the info
2034 in the last subspace of the space. */
2035 space_asect->size = (save_subspace.subspace_start
2037 + save_subspace.subspace_length);
2041 /* The subspace_start field is not initialised in relocatable
2042 only objects, so it cannot be used for length calculations.
2043 Instead we use the space_size value which we have been
2044 accumulating. This isn't an accurate estimate since it
2045 ignores alignment and ordering issues. */
2046 space_asect->size = space_size;
2050 /* Now that we've read in all the subspace records, we need to assign
2051 a target index to each subspace. */
2052 amt = total_subspaces;
2053 amt *= sizeof (asection *);
2054 subspace_sections = bfd_malloc (amt);
2055 if (subspace_sections == NULL)
2058 for (i = 0, section = abfd->sections; section; section = section->next)
2060 if (!som_is_subspace (section))
2063 subspace_sections[i] = section;
2066 qsort (subspace_sections, total_subspaces,
2067 sizeof (asection *), compare_subspaces);
2069 /* subspace_sections is now sorted in the order in which the subspaces
2070 appear in the object file. Assign an index to each one now. */
2071 for (i = 0; i < total_subspaces; i++)
2072 subspace_sections[i]->target_index = i;
2074 if (space_strings != NULL)
2075 free (space_strings);
2077 if (subspace_sections != NULL)
2078 free (subspace_sections);
2083 if (space_strings != NULL)
2084 free (space_strings);
2086 if (subspace_sections != NULL)
2087 free (subspace_sections);
2091 /* Read in a SOM object and make it into a BFD. */
2093 static const bfd_target *
2094 som_object_p (bfd *abfd)
2096 struct header file_hdr;
2097 struct som_exec_auxhdr *aux_hdr_ptr = NULL;
2098 unsigned long current_offset = 0;
2099 struct lst_header lst_header;
2100 struct som_entry som_entry;
2102 #define ENTRY_SIZE sizeof (struct som_entry)
2104 amt = FILE_HDR_SIZE;
2105 if (bfd_bread ((void *) &file_hdr, amt, abfd) != amt)
2107 if (bfd_get_error () != bfd_error_system_call)
2108 bfd_set_error (bfd_error_wrong_format);
2112 if (!_PA_RISC_ID (file_hdr.system_id))
2114 bfd_set_error (bfd_error_wrong_format);
2118 switch (file_hdr.a_magic)
2130 #ifdef SHARED_MAGIC_CNX
2131 case SHARED_MAGIC_CNX:
2137 /* Read the lst header and determine where the SOM directory begins. */
2139 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
2141 if (bfd_get_error () != bfd_error_system_call)
2142 bfd_set_error (bfd_error_wrong_format);
2147 if (bfd_bread ((void *) &lst_header, amt, abfd) != amt)
2149 if (bfd_get_error () != bfd_error_system_call)
2150 bfd_set_error (bfd_error_wrong_format);
2154 /* Position to and read the first directory entry. */
2156 if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0)
2158 if (bfd_get_error () != bfd_error_system_call)
2159 bfd_set_error (bfd_error_wrong_format);
2164 if (bfd_bread ((void *) &som_entry, amt, abfd) != amt)
2166 if (bfd_get_error () != bfd_error_system_call)
2167 bfd_set_error (bfd_error_wrong_format);
2171 /* Now position to the first SOM. */
2173 if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0)
2175 if (bfd_get_error () != bfd_error_system_call)
2176 bfd_set_error (bfd_error_wrong_format);
2180 current_offset = som_entry.location;
2182 /* And finally, re-read the som header. */
2183 amt = FILE_HDR_SIZE;
2184 if (bfd_bread ((void *) &file_hdr, amt, abfd) != amt)
2186 if (bfd_get_error () != bfd_error_system_call)
2187 bfd_set_error (bfd_error_wrong_format);
2195 bfd_set_error (bfd_error_wrong_format);
2199 if (file_hdr.version_id != VERSION_ID
2200 && file_hdr.version_id != NEW_VERSION_ID)
2202 bfd_set_error (bfd_error_wrong_format);
2206 /* If the aux_header_size field in the file header is zero, then this
2207 object is an incomplete executable (a .o file). Do not try to read
2208 a non-existant auxiliary header. */
2209 if (file_hdr.aux_header_size != 0)
2211 aux_hdr_ptr = bfd_zalloc (abfd,
2212 (bfd_size_type) sizeof (*aux_hdr_ptr));
2213 if (aux_hdr_ptr == NULL)
2216 if (bfd_bread ((void *) aux_hdr_ptr, amt, abfd) != amt)
2218 if (bfd_get_error () != bfd_error_system_call)
2219 bfd_set_error (bfd_error_wrong_format);
2224 if (!setup_sections (abfd, &file_hdr, current_offset))
2226 /* setup_sections does not bubble up a bfd error code. */
2227 bfd_set_error (bfd_error_bad_value);
2231 /* This appears to be a valid SOM object. Do some initialization. */
2232 return som_object_setup (abfd, &file_hdr, aux_hdr_ptr, current_offset);
2235 /* Create a SOM object. */
2238 som_mkobject (bfd *abfd)
2240 /* Allocate memory to hold backend information. */
2241 abfd->tdata.som_data = bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct));
2242 if (abfd->tdata.som_data == NULL)
2247 /* Initialize some information in the file header. This routine makes
2248 not attempt at doing the right thing for a full executable; it
2249 is only meant to handle relocatable objects. */
2252 som_prep_headers (bfd *abfd)
2254 struct header *file_hdr;
2256 bfd_size_type amt = sizeof (struct header);
2258 /* Make and attach a file header to the BFD. */
2259 file_hdr = bfd_zalloc (abfd, amt);
2260 if (file_hdr == NULL)
2262 obj_som_file_hdr (abfd) = file_hdr;
2264 if (abfd->flags & (EXEC_P | DYNAMIC))
2266 /* Make and attach an exec header to the BFD. */
2267 amt = sizeof (struct som_exec_auxhdr);
2268 obj_som_exec_hdr (abfd) = bfd_zalloc (abfd, amt);
2269 if (obj_som_exec_hdr (abfd) == NULL)
2272 if (abfd->flags & D_PAGED)
2273 file_hdr->a_magic = DEMAND_MAGIC;
2274 else if (abfd->flags & WP_TEXT)
2275 file_hdr->a_magic = SHARE_MAGIC;
2277 else if (abfd->flags & DYNAMIC)
2278 file_hdr->a_magic = SHL_MAGIC;
2281 file_hdr->a_magic = EXEC_MAGIC;
2284 file_hdr->a_magic = RELOC_MAGIC;
2286 /* These fields are optional, and embedding timestamps is not always
2287 a wise thing to do, it makes comparing objects during a multi-stage
2288 bootstrap difficult. */
2289 file_hdr->file_time.secs = 0;
2290 file_hdr->file_time.nanosecs = 0;
2292 file_hdr->entry_space = 0;
2293 file_hdr->entry_subspace = 0;
2294 file_hdr->entry_offset = 0;
2295 file_hdr->presumed_dp = 0;
2297 /* Now iterate over the sections translating information from
2298 BFD sections to SOM spaces/subspaces. */
2299 for (section = abfd->sections; section != NULL; section = section->next)
2301 /* Ignore anything which has not been marked as a space or
2303 if (!som_is_space (section) && !som_is_subspace (section))
2306 if (som_is_space (section))
2308 /* Allocate space for the space dictionary. */
2309 amt = sizeof (struct space_dictionary_record);
2310 som_section_data (section)->space_dict = bfd_zalloc (abfd, amt);
2311 if (som_section_data (section)->space_dict == NULL)
2313 /* Set space attributes. Note most attributes of SOM spaces
2314 are set based on the subspaces it contains. */
2315 som_section_data (section)->space_dict->loader_fix_index = -1;
2316 som_section_data (section)->space_dict->init_pointer_index = -1;
2318 /* Set more attributes that were stuffed away in private data. */
2319 som_section_data (section)->space_dict->sort_key =
2320 som_section_data (section)->copy_data->sort_key;
2321 som_section_data (section)->space_dict->is_defined =
2322 som_section_data (section)->copy_data->is_defined;
2323 som_section_data (section)->space_dict->is_private =
2324 som_section_data (section)->copy_data->is_private;
2325 som_section_data (section)->space_dict->space_number =
2326 som_section_data (section)->copy_data->space_number;
2330 /* Allocate space for the subspace dictionary. */
2331 amt = sizeof (struct som_subspace_dictionary_record);
2332 som_section_data (section)->subspace_dict = bfd_zalloc (abfd, amt);
2333 if (som_section_data (section)->subspace_dict == NULL)
2336 /* Set subspace attributes. Basic stuff is done here, additional
2337 attributes are filled in later as more information becomes
2339 if (section->flags & SEC_ALLOC)
2340 som_section_data (section)->subspace_dict->is_loadable = 1;
2342 if (section->flags & SEC_CODE)
2343 som_section_data (section)->subspace_dict->code_only = 1;
2345 som_section_data (section)->subspace_dict->subspace_start =
2347 som_section_data (section)->subspace_dict->subspace_length =
2349 som_section_data (section)->subspace_dict->initialization_length =
2351 som_section_data (section)->subspace_dict->alignment =
2352 1 << section->alignment_power;
2354 /* Set more attributes that were stuffed away in private data. */
2355 som_section_data (section)->subspace_dict->sort_key =
2356 som_section_data (section)->copy_data->sort_key;
2357 som_section_data (section)->subspace_dict->access_control_bits =
2358 som_section_data (section)->copy_data->access_control_bits;
2359 som_section_data (section)->subspace_dict->quadrant =
2360 som_section_data (section)->copy_data->quadrant;
2361 som_section_data (section)->subspace_dict->is_comdat =
2362 som_section_data (section)->copy_data->is_comdat;
2363 som_section_data (section)->subspace_dict->is_common =
2364 som_section_data (section)->copy_data->is_common;
2365 som_section_data (section)->subspace_dict->dup_common =
2366 som_section_data (section)->copy_data->dup_common;
2372 /* Return TRUE if the given section is a SOM space, FALSE otherwise. */
2375 som_is_space (asection *section)
2377 /* If no copy data is available, then it's neither a space nor a
2379 if (som_section_data (section)->copy_data == NULL)
2382 /* If the containing space isn't the same as the given section,
2383 then this isn't a space. */
2384 if (som_section_data (section)->copy_data->container != section
2385 && (som_section_data (section)->copy_data->container->output_section
2389 /* OK. Must be a space. */
2393 /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */
2396 som_is_subspace (asection *section)
2398 /* If no copy data is available, then it's neither a space nor a
2400 if (som_section_data (section)->copy_data == NULL)
2403 /* If the containing space is the same as the given section,
2404 then this isn't a subspace. */
2405 if (som_section_data (section)->copy_data->container == section
2406 || (som_section_data (section)->copy_data->container->output_section
2410 /* OK. Must be a subspace. */
2414 /* Return TRUE if the given space contains the given subspace. It
2415 is safe to assume space really is a space, and subspace really
2419 som_is_container (asection *space, asection *subspace)
2421 return (som_section_data (subspace)->copy_data->container == space)
2422 || (som_section_data (subspace)->copy_data->container->output_section
2426 /* Count and return the number of spaces attached to the given BFD. */
2428 static unsigned long
2429 som_count_spaces (bfd *abfd)
2434 for (section = abfd->sections; section != NULL; section = section->next)
2435 count += som_is_space (section);
2440 /* Count the number of subspaces attached to the given BFD. */
2442 static unsigned long
2443 som_count_subspaces (bfd *abfd)
2448 for (section = abfd->sections; section != NULL; section = section->next)
2449 count += som_is_subspace (section);
2454 /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2.
2456 We desire symbols to be ordered starting with the symbol with the
2457 highest relocation count down to the symbol with the lowest relocation
2458 count. Doing so compacts the relocation stream. */
2461 compare_syms (const void *arg1, const void *arg2)
2463 asymbol **sym1 = (asymbol **) arg1;
2464 asymbol **sym2 = (asymbol **) arg2;
2465 unsigned int count1, count2;
2467 /* Get relocation count for each symbol. Note that the count
2468 is stored in the udata pointer for section symbols! */
2469 if ((*sym1)->flags & BSF_SECTION_SYM)
2470 count1 = (*sym1)->udata.i;
2472 count1 = som_symbol_data (*sym1)->reloc_count;
2474 if ((*sym2)->flags & BSF_SECTION_SYM)
2475 count2 = (*sym2)->udata.i;
2477 count2 = som_symbol_data (*sym2)->reloc_count;
2479 /* Return the appropriate value. */
2480 if (count1 < count2)
2482 else if (count1 > count2)
2487 /* Return -1, 0, 1 indicating the relative ordering of subspace1
2491 compare_subspaces (const void *arg1, const void *arg2)
2493 asection **subspace1 = (asection **) arg1;
2494 asection **subspace2 = (asection **) arg2;
2496 if ((*subspace1)->target_index < (*subspace2)->target_index)
2498 else if ((*subspace2)->target_index < (*subspace1)->target_index)
2504 /* Perform various work in preparation for emitting the fixup stream. */
2507 som_prep_for_fixups (bfd *abfd, asymbol **syms, unsigned long num_syms)
2511 asymbol **sorted_syms;
2514 /* Most SOM relocations involving a symbol have a length which is
2515 dependent on the index of the symbol. So symbols which are
2516 used often in relocations should have a small index. */
2518 /* First initialize the counters for each symbol. */
2519 for (i = 0; i < num_syms; i++)
2521 /* Handle a section symbol; these have no pointers back to the
2522 SOM symbol info. So we just use the udata field to hold the
2523 relocation count. */
2524 if (som_symbol_data (syms[i]) == NULL
2525 || syms[i]->flags & BSF_SECTION_SYM)
2527 syms[i]->flags |= BSF_SECTION_SYM;
2528 syms[i]->udata.i = 0;
2531 som_symbol_data (syms[i])->reloc_count = 0;
2534 /* Now that the counters are initialized, make a weighted count
2535 of how often a given symbol is used in a relocation. */
2536 for (section = abfd->sections; section != NULL; section = section->next)
2540 /* Does this section have any relocations? */
2541 if ((int) section->reloc_count <= 0)
2544 /* Walk through each relocation for this section. */
2545 for (j = 1; j < (int) section->reloc_count; j++)
2547 arelent *reloc = section->orelocation[j];
2550 /* A relocation against a symbol in the *ABS* section really
2551 does not have a symbol. Likewise if the symbol isn't associated
2552 with any section. */
2553 if (reloc->sym_ptr_ptr == NULL
2554 || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section))
2557 /* Scaling to encourage symbols involved in R_DP_RELATIVE
2558 and R_CODE_ONE_SYMBOL relocations to come first. These
2559 two relocations have single byte versions if the symbol
2560 index is very small. */
2561 if (reloc->howto->type == R_DP_RELATIVE
2562 || reloc->howto->type == R_CODE_ONE_SYMBOL)
2567 /* Handle section symbols by storing the count in the udata
2568 field. It will not be used and the count is very important
2569 for these symbols. */
2570 if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2572 (*reloc->sym_ptr_ptr)->udata.i =
2573 (*reloc->sym_ptr_ptr)->udata.i + scale;
2577 /* A normal symbol. Increment the count. */
2578 som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale;
2582 /* Sort a copy of the symbol table, rather than the canonical
2583 output symbol table. */
2585 amt *= sizeof (asymbol *);
2586 sorted_syms = bfd_zalloc (abfd, amt);
2587 memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *));
2588 qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms);
2589 obj_som_sorted_syms (abfd) = sorted_syms;
2591 /* Compute the symbol indexes, they will be needed by the relocation
2593 for (i = 0; i < num_syms; i++)
2595 /* A section symbol. Again, there is no pointer to backend symbol
2596 information, so we reuse the udata field again. */
2597 if (sorted_syms[i]->flags & BSF_SECTION_SYM)
2598 sorted_syms[i]->udata.i = i;
2600 som_symbol_data (sorted_syms[i])->index = i;
2605 som_write_fixups (bfd *abfd,
2606 unsigned long current_offset,
2607 unsigned int *total_reloc_sizep)
2610 /* Chunk of memory that we can use as buffer space, then throw
2612 unsigned char tmp_space[SOM_TMP_BUFSIZE];
2614 unsigned int total_reloc_size = 0;
2615 unsigned int subspace_reloc_size = 0;
2616 unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total;
2617 asection *section = abfd->sections;
2620 memset (tmp_space, 0, SOM_TMP_BUFSIZE);
2623 /* All the fixups for a particular subspace are emitted in a single
2624 stream. All the subspaces for a particular space are emitted
2627 So, to get all the locations correct one must iterate through all the
2628 spaces, for each space iterate through its subspaces and output a
2630 for (i = 0; i < num_spaces; i++)
2632 asection *subsection;
2635 while (!som_is_space (section))
2636 section = section->next;
2638 /* Now iterate through each of its subspaces. */
2639 for (subsection = abfd->sections;
2641 subsection = subsection->next)
2644 unsigned int current_rounding_mode;
2645 #ifndef NO_PCREL_MODES
2646 unsigned int current_call_mode;
2649 /* Find a subspace of this space. */
2650 if (!som_is_subspace (subsection)
2651 || !som_is_container (section, subsection))
2654 /* If this subspace does not have real data, then we are
2655 finished with it. */
2656 if ((subsection->flags & SEC_HAS_CONTENTS) == 0)
2658 som_section_data (subsection)->subspace_dict->fixup_request_index
2663 /* This subspace has some relocations. Put the relocation stream
2664 index into the subspace record. */
2665 som_section_data (subsection)->subspace_dict->fixup_request_index
2668 /* To make life easier start over with a clean slate for
2669 each subspace. Seek to the start of the relocation stream
2670 for this subspace in preparation for writing out its fixup
2672 if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0)
2675 /* Buffer space has already been allocated. Just perform some
2676 initialization here. */
2678 subspace_reloc_size = 0;
2680 som_initialize_reloc_queue (reloc_queue);
2681 current_rounding_mode = R_N_MODE;
2682 #ifndef NO_PCREL_MODES
2683 current_call_mode = R_SHORT_PCREL_MODE;
2686 /* Translate each BFD relocation into one or more SOM
2688 for (j = 0; j < subsection->reloc_count; j++)
2690 arelent *bfd_reloc = subsection->orelocation[j];
2694 /* Get the symbol number. Remember it's stored in a
2695 special place for section symbols. */
2696 if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
2697 sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i;
2699 sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index;
2701 /* If there is not enough room for the next couple relocations,
2702 then dump the current buffer contents now. Also reinitialize
2703 the relocation queue.
2705 No single BFD relocation could ever translate into more
2706 than 100 bytes of SOM relocations (20bytes is probably the
2707 upper limit, but leave lots of space for growth). */
2708 if (p - tmp_space + 100 > SOM_TMP_BUFSIZE)
2710 amt = p - tmp_space;
2711 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
2715 som_initialize_reloc_queue (reloc_queue);
2718 /* Emit R_NO_RELOCATION fixups to map any bytes which were
2720 skip = bfd_reloc->address - reloc_offset;
2721 p = som_reloc_skip (abfd, skip, p,
2722 &subspace_reloc_size, reloc_queue);
2724 /* Update reloc_offset for the next iteration.
2726 Many relocations do not consume input bytes. They
2727 are markers, or set state necessary to perform some
2728 later relocation. */
2729 switch (bfd_reloc->howto->type)
2749 #ifndef NO_PCREL_MODES
2750 case R_SHORT_PCREL_MODE:
2751 case R_LONG_PCREL_MODE:
2753 reloc_offset = bfd_reloc->address;
2757 reloc_offset = bfd_reloc->address + 4;
2761 /* Now the actual relocation we care about. */
2762 switch (bfd_reloc->howto->type)
2766 p = som_reloc_call (abfd, p, &subspace_reloc_size,
2767 bfd_reloc, sym_num, reloc_queue);
2770 case R_CODE_ONE_SYMBOL:
2772 /* Account for any addend. */
2773 if (bfd_reloc->addend)
2774 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2775 &subspace_reloc_size, reloc_queue);
2779 bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p);
2780 subspace_reloc_size += 1;
2783 else if (sym_num < 0x100)
2785 bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p);
2786 bfd_put_8 (abfd, sym_num, p + 1);
2787 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2790 else if (sym_num < 0x10000000)
2792 bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p);
2793 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2794 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2795 p = try_prev_fixup (abfd, &subspace_reloc_size,
2802 case R_DATA_ONE_SYMBOL:
2806 /* Account for any addend using R_DATA_OVERRIDE. */
2807 if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL
2808 && bfd_reloc->addend)
2809 p = som_reloc_addend (abfd, bfd_reloc->addend, p,
2810 &subspace_reloc_size, reloc_queue);
2812 if (sym_num < 0x100)
2814 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2815 bfd_put_8 (abfd, sym_num, p + 1);
2816 p = try_prev_fixup (abfd, &subspace_reloc_size, p,
2819 else if (sym_num < 0x10000000)
2821 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2822 bfd_put_8 (abfd, sym_num >> 16, p + 1);
2823 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2);
2824 p = try_prev_fixup (abfd, &subspace_reloc_size,
2834 arelent *tmp_reloc = NULL;
2835 bfd_put_8 (abfd, R_ENTRY, p);
2837 /* R_ENTRY relocations have 64 bits of associated
2838 data. Unfortunately the addend field of a bfd
2839 relocation is only 32 bits. So, we split up
2840 the 64bit unwind information and store part in
2841 the R_ENTRY relocation, and the rest in the R_EXIT
2843 bfd_put_32 (abfd, bfd_reloc->addend, p + 1);
2845 /* Find the next R_EXIT relocation. */
2846 for (tmp = j; tmp < subsection->reloc_count; tmp++)
2848 tmp_reloc = subsection->orelocation[tmp];
2849 if (tmp_reloc->howto->type == R_EXIT)
2853 if (tmp == subsection->reloc_count)
2856 bfd_put_32 (abfd, tmp_reloc->addend, p + 5);
2857 p = try_prev_fixup (abfd, &subspace_reloc_size,
2866 /* If this relocation requests the current rounding
2867 mode, then it is redundant. */
2868 if (bfd_reloc->howto->type != current_rounding_mode)
2870 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2871 subspace_reloc_size += 1;
2873 current_rounding_mode = bfd_reloc->howto->type;
2877 #ifndef NO_PCREL_MODES
2878 case R_LONG_PCREL_MODE:
2879 case R_SHORT_PCREL_MODE:
2880 if (bfd_reloc->howto->type != current_call_mode)
2882 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2883 subspace_reloc_size += 1;
2885 current_call_mode = bfd_reloc->howto->type;
2900 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2901 subspace_reloc_size += 1;
2906 /* The end of an exception handling region. The reloc's
2907 addend contains the offset of the exception handling
2909 if (bfd_reloc->addend == 0)
2910 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2911 else if (bfd_reloc->addend < 1024)
2913 bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p);
2914 bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1);
2915 p = try_prev_fixup (abfd, &subspace_reloc_size,
2920 bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p);
2921 bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1);
2922 bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2);
2923 p = try_prev_fixup (abfd, &subspace_reloc_size,
2929 /* The only time we generate R_COMP1, R_COMP2 and
2930 R_CODE_EXPR relocs is for the difference of two
2931 symbols. Hence we can cheat here. */
2932 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2933 bfd_put_8 (abfd, 0x44, p + 1);
2934 p = try_prev_fixup (abfd, &subspace_reloc_size,
2939 /* The only time we generate R_COMP1, R_COMP2 and
2940 R_CODE_EXPR relocs is for the difference of two
2941 symbols. Hence we can cheat here. */
2942 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2943 bfd_put_8 (abfd, 0x80, p + 1);
2944 bfd_put_8 (abfd, sym_num >> 16, p + 2);
2945 bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3);
2946 p = try_prev_fixup (abfd, &subspace_reloc_size,
2952 /* The only time we generate R_COMP1, R_COMP2 and
2953 R_CODE_EXPR relocs is for the difference of two
2954 symbols. Hence we can cheat here. */
2955 bfd_put_8 (abfd, bfd_reloc->howto->type, p);
2956 subspace_reloc_size += 1;
2960 /* Put a "R_RESERVED" relocation in the stream if
2961 we hit something we do not understand. The linker
2962 will complain loudly if this ever happens. */
2964 bfd_put_8 (abfd, 0xff, p);
2965 subspace_reloc_size += 1;
2971 /* Last BFD relocation for a subspace has been processed.
2972 Map the rest of the subspace with R_NO_RELOCATION fixups. */
2973 p = som_reloc_skip (abfd, subsection->size - reloc_offset,
2974 p, &subspace_reloc_size, reloc_queue);
2976 /* Scribble out the relocations. */
2977 amt = p - tmp_space;
2978 if (bfd_bwrite ((void *) tmp_space, amt, abfd) != amt)
2982 total_reloc_size += subspace_reloc_size;
2983 som_section_data (subsection)->subspace_dict->fixup_request_quantity
2984 = subspace_reloc_size;
2986 section = section->next;
2988 *total_reloc_sizep = total_reloc_size;
2992 /* Write out the space/subspace string table. */
2995 som_write_space_strings (bfd *abfd,
2996 unsigned long current_offset,
2997 unsigned int *string_sizep)
2999 /* Chunk of memory that we can use as buffer space, then throw
3001 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3002 char *tmp_space = alloca (tmp_space_size);
3003 char *p = tmp_space;
3004 unsigned int strings_size = 0;
3008 /* Seek to the start of the space strings in preparation for writing
3010 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3013 /* Walk through all the spaces and subspaces (order is not important)
3014 building up and writing string table entries for their names. */
3015 for (section = abfd->sections; section != NULL; section = section->next)
3019 /* Only work with space/subspaces; avoid any other sections
3020 which might have been made (.text for example). */
3021 if (!som_is_space (section) && !som_is_subspace (section))
3024 /* Get the length of the space/subspace name. */
3025 length = strlen (section->name);
3027 /* If there is not enough room for the next entry, then dump the
3028 current buffer contents now and maybe allocate a larger
3029 buffer. Each entry will take 4 bytes to hold the string
3030 length + the string itself + null terminator. */
3031 if (p - tmp_space + 5 + length > tmp_space_size)
3033 /* Flush buffer before refilling or reallocating. */
3034 amt = p - tmp_space;
3035 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3038 /* Reallocate if now empty buffer still too small. */
3039 if (5 + length > tmp_space_size)
3041 /* Ensure a minimum growth factor to avoid O(n**2) space
3042 consumption for n strings. The optimal minimum
3043 factor seems to be 2, as no other value can guarantee
3044 wasting less than 50% space. (Note that we cannot
3045 deallocate space allocated by `alloca' without
3046 returning from this function.) The same technique is
3047 used a few more times below when a buffer is
3049 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3050 tmp_space = alloca (tmp_space_size);
3053 /* Reset to beginning of the (possibly new) buffer space. */
3057 /* First element in a string table entry is the length of the
3058 string. Alignment issues are already handled. */
3059 bfd_put_32 (abfd, (bfd_vma) length, p);
3063 /* Record the index in the space/subspace records. */
3064 if (som_is_space (section))
3065 som_section_data (section)->space_dict->name.n_strx = strings_size;
3067 som_section_data (section)->subspace_dict->name.n_strx = strings_size;
3069 /* Next comes the string itself + a null terminator. */
3070 strcpy (p, section->name);
3072 strings_size += length + 1;
3074 /* Always align up to the next word boundary. */
3075 while (strings_size % 4)
3077 bfd_put_8 (abfd, 0, p);
3083 /* Done with the space/subspace strings. Write out any information
3084 contained in a partial block. */
3085 amt = p - tmp_space;
3086 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3088 *string_sizep = strings_size;
3092 /* Write out the symbol string table. */
3095 som_write_symbol_strings (bfd *abfd,
3096 unsigned long current_offset,
3098 unsigned int num_syms,
3099 unsigned int *string_sizep,
3100 COMPUNIT *compilation_unit)
3104 /* Chunk of memory that we can use as buffer space, then throw
3106 size_t tmp_space_size = SOM_TMP_BUFSIZE;
3107 char *tmp_space = alloca (tmp_space_size);
3108 char *p = tmp_space;
3110 unsigned int strings_size = 0;
3114 /* This gets a bit gruesome because of the compilation unit. The
3115 strings within the compilation unit are part of the symbol
3116 strings, but don't have symbol_dictionary entries. So, manually
3117 write them and update the compilation unit header. On input, the
3118 compilation unit header contains local copies of the strings.
3120 if (compilation_unit)
3122 comp[0] = compilation_unit->name.n_name;
3123 comp[1] = compilation_unit->language_name.n_name;
3124 comp[2] = compilation_unit->product_id.n_name;
3125 comp[3] = compilation_unit->version_id.n_name;
3128 /* Seek to the start of the space strings in preparation for writing
3130 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3133 if (compilation_unit)
3135 for (i = 0; i < 4; i++)
3137 size_t length = strlen (comp[i]);
3139 /* If there is not enough room for the next entry, then dump
3140 the current buffer contents now and maybe allocate a
3142 if (p - tmp_space + 5 + length > tmp_space_size)
3144 /* Flush buffer before refilling or reallocating. */
3145 amt = p - tmp_space;
3146 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3149 /* Reallocate if now empty buffer still too small. */
3150 if (5 + length > tmp_space_size)
3152 /* See alloca above for discussion of new size. */
3153 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3154 tmp_space = alloca (tmp_space_size);
3157 /* Reset to beginning of the (possibly new) buffer
3162 /* First element in a string table entry is the length of
3163 the string. This must always be 4 byte aligned. This is
3164 also an appropriate time to fill in the string index
3165 field in the symbol table entry. */
3166 bfd_put_32 (abfd, (bfd_vma) length, p);
3170 /* Next comes the string itself + a null terminator. */
3171 strcpy (p, comp[i]);
3176 obj_som_compilation_unit (abfd)->name.n_strx = strings_size;
3179 obj_som_compilation_unit (abfd)->language_name.n_strx =
3183 obj_som_compilation_unit (abfd)->product_id.n_strx =
3187 obj_som_compilation_unit (abfd)->version_id.n_strx =
3193 strings_size += length + 1;
3195 /* Always align up to the next word boundary. */
3196 while (strings_size % 4)
3198 bfd_put_8 (abfd, 0, p);
3205 for (i = 0; i < num_syms; i++)
3207 size_t length = strlen (syms[i]->name);
3209 /* If there is not enough room for the next entry, then dump the
3210 current buffer contents now and maybe allocate a larger buffer. */
3211 if (p - tmp_space + 5 + length > tmp_space_size)
3213 /* Flush buffer before refilling or reallocating. */
3214 amt = p - tmp_space;
3215 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3218 /* Reallocate if now empty buffer still too small. */
3219 if (5 + length > tmp_space_size)
3221 /* See alloca above for discussion of new size. */
3222 tmp_space_size = MAX (2 * tmp_space_size, 5 + length);
3223 tmp_space = alloca (tmp_space_size);
3226 /* Reset to beginning of the (possibly new) buffer space. */
3230 /* First element in a string table entry is the length of the
3231 string. This must always be 4 byte aligned. This is also
3232 an appropriate time to fill in the string index field in the
3233 symbol table entry. */
3234 bfd_put_32 (abfd, (bfd_vma) length, p);
3238 /* Next comes the string itself + a null terminator. */
3239 strcpy (p, syms[i]->name);
3241 som_symbol_data (syms[i])->stringtab_offset = strings_size;
3243 strings_size += length + 1;
3245 /* Always align up to the next word boundary. */
3246 while (strings_size % 4)
3248 bfd_put_8 (abfd, 0, p);
3254 /* Scribble out any partial block. */
3255 amt = p - tmp_space;
3256 if (bfd_bwrite ((void *) &tmp_space[0], amt, abfd) != amt)
3259 *string_sizep = strings_size;
3263 /* Compute variable information to be placed in the SOM headers,
3264 space/subspace dictionaries, relocation streams, etc. Begin
3265 writing parts of the object file. */
3268 som_begin_writing (bfd *abfd)
3270 unsigned long current_offset = 0;
3271 unsigned int strings_size = 0;
3272 unsigned long num_spaces, num_subspaces, i;
3274 unsigned int total_subspaces = 0;
3275 struct som_exec_auxhdr *exec_header = NULL;
3277 /* The file header will always be first in an object file,
3278 everything else can be in random locations. To keep things
3279 "simple" BFD will lay out the object file in the manner suggested
3280 by the PRO ABI for PA-RISC Systems. */
3282 /* Before any output can really begin offsets for all the major
3283 portions of the object file must be computed. So, starting
3284 with the initial file header compute (and sometimes write)
3285 each portion of the object file. */
3287 /* Make room for the file header, it's contents are not complete
3288 yet, so it can not be written at this time. */
3289 current_offset += sizeof (struct header);
3291 /* Any auxiliary headers will follow the file header. Right now
3292 we support only the copyright and version headers. */
3293 obj_som_file_hdr (abfd)->aux_header_location = current_offset;
3294 obj_som_file_hdr (abfd)->aux_header_size = 0;
3295 if (abfd->flags & (EXEC_P | DYNAMIC))
3297 /* Parts of the exec header will be filled in later, so
3298 delay writing the header itself. Fill in the defaults,
3299 and write it later. */
3300 current_offset += sizeof (struct som_exec_auxhdr);
3301 obj_som_file_hdr (abfd)->aux_header_size
3302 += sizeof (struct som_exec_auxhdr);
3303 exec_header = obj_som_exec_hdr (abfd);
3304 exec_header->som_auxhdr.type = EXEC_AUX_ID;
3305 exec_header->som_auxhdr.length = 40;
3307 if (obj_som_version_hdr (abfd) != NULL)
3311 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3314 /* Write the aux_id structure and the string length. */
3315 len = sizeof (struct aux_id) + sizeof (unsigned int);
3316 obj_som_file_hdr (abfd)->aux_header_size += len;
3317 current_offset += len;
3318 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd), len, abfd) != len)
3321 /* Write the version string. */
3322 len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int);
3323 obj_som_file_hdr (abfd)->aux_header_size += len;
3324 current_offset += len;
3325 if (bfd_bwrite ((void *) obj_som_version_hdr (abfd)->user_string, len, abfd)
3330 if (obj_som_copyright_hdr (abfd) != NULL)
3334 if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0)
3337 /* Write the aux_id structure and the string length. */
3338 len = sizeof (struct aux_id) + sizeof (unsigned int);
3339 obj_som_file_hdr (abfd)->aux_header_size += len;
3340 current_offset += len;
3341 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd), len, abfd) != len)
3344 /* Write the copyright string. */
3345 len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int);
3346 obj_som_file_hdr (abfd)->aux_header_size += len;
3347 current_offset += len;
3348 if (bfd_bwrite ((void *) obj_som_copyright_hdr (abfd)->copyright, len, abfd)
3353 /* Next comes the initialization pointers; we have no initialization
3354 pointers, so current offset does not change. */
3355 obj_som_file_hdr (abfd)->init_array_location = current_offset;
3356 obj_som_file_hdr (abfd)->init_array_total = 0;
3358 /* Next are the space records. These are fixed length records.
3360 Count the number of spaces to determine how much room is needed
3361 in the object file for the space records.
3363 The names of the spaces are stored in a separate string table,
3364 and the index for each space into the string table is computed
3365 below. Therefore, it is not possible to write the space headers
3367 num_spaces = som_count_spaces (abfd);
3368 obj_som_file_hdr (abfd)->space_location = current_offset;
3369 obj_som_file_hdr (abfd)->space_total = num_spaces;
3370 current_offset += num_spaces * sizeof (struct space_dictionary_record);
3372 /* Next are the subspace records. These are fixed length records.
3374 Count the number of subspaes to determine how much room is needed
3375 in the object file for the subspace records.
3377 A variety if fields in the subspace record are still unknown at
3378 this time (index into string table, fixup stream location/size, etc). */
3379 num_subspaces = som_count_subspaces (abfd);
3380 obj_som_file_hdr (abfd)->subspace_location = current_offset;
3381 obj_som_file_hdr (abfd)->subspace_total = num_subspaces;
3383 += num_subspaces * sizeof (struct som_subspace_dictionary_record);
3385 /* Next is the string table for the space/subspace names. We will
3386 build and write the string table on the fly. At the same time
3387 we will fill in the space/subspace name index fields. */
3389 /* The string table needs to be aligned on a word boundary. */
3390 if (current_offset % 4)
3391 current_offset += (4 - (current_offset % 4));
3393 /* Mark the offset of the space/subspace string table in the
3395 obj_som_file_hdr (abfd)->space_strings_location = current_offset;
3397 /* Scribble out the space strings. */
3398 if (! som_write_space_strings (abfd, current_offset, &strings_size))
3401 /* Record total string table size in the header and update the
3403 obj_som_file_hdr (abfd)->space_strings_size = strings_size;
3404 current_offset += strings_size;
3406 /* Next is the compilation unit. */
3407 obj_som_file_hdr (abfd)->compiler_location = current_offset;
3408 obj_som_file_hdr (abfd)->compiler_total = 0;
3409 if (obj_som_compilation_unit (abfd))
3411 obj_som_file_hdr (abfd)->compiler_total = 1;
3412 current_offset += COMPUNITSZ;
3415 /* Now compute the file positions for the loadable subspaces, taking
3416 care to make sure everything stays properly aligned. */
3418 section = abfd->sections;
3419 for (i = 0; i < num_spaces; i++)
3421 asection *subsection;
3423 unsigned int subspace_offset = 0;
3426 while (!som_is_space (section))
3427 section = section->next;
3430 /* Now look for all its subspaces. */
3431 for (subsection = abfd->sections;
3433 subsection = subsection->next)
3436 if (!som_is_subspace (subsection)
3437 || !som_is_container (section, subsection)
3438 || (subsection->flags & SEC_ALLOC) == 0)
3441 /* If this is the first subspace in the space, and we are
3442 building an executable, then take care to make sure all
3443 the alignments are correct and update the exec header. */
3445 && (abfd->flags & (EXEC_P | DYNAMIC)))
3447 /* Demand paged executables have each space aligned to a
3448 page boundary. Sharable executables (write-protected
3449 text) have just the private (aka data & bss) space aligned
3450 to a page boundary. Ugh. Not true for HPUX.
3452 The HPUX kernel requires the text to always be page aligned
3453 within the file regardless of the executable's type. */
3454 if (abfd->flags & (D_PAGED | DYNAMIC)
3455 || (subsection->flags & SEC_CODE)
3456 || ((abfd->flags & WP_TEXT)
3457 && (subsection->flags & SEC_DATA)))
3458 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3460 /* Update the exec header. */
3461 if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0)
3463 exec_header->exec_tmem = section->vma;
3464 exec_header->exec_tfile = current_offset;
3466 if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0)
3468 exec_header->exec_dmem = section->vma;
3469 exec_header->exec_dfile = current_offset;
3472 /* Keep track of exactly where we are within a particular
3473 space. This is necessary as the braindamaged HPUX
3474 loader will create holes between subspaces *and*
3475 subspace alignments are *NOT* preserved. What a crock. */
3476 subspace_offset = subsection->vma;
3478 /* Only do this for the first subspace within each space. */
3481 else if (abfd->flags & (EXEC_P | DYNAMIC))
3483 /* The braindamaged HPUX loader may have created a hole
3484 between two subspaces. It is *not* sufficient to use
3485 the alignment specifications within the subspaces to
3486 account for these holes -- I've run into at least one
3487 case where the loader left one code subspace unaligned
3488 in a final executable.
3490 To combat this we keep a current offset within each space,
3491 and use the subspace vma fields to detect and preserve
3492 holes. What a crock!
3494 ps. This is not necessary for unloadable space/subspaces. */
3495 current_offset += subsection->vma - subspace_offset;
3496 if (subsection->flags & SEC_CODE)
3497 exec_header->exec_tsize += subsection->vma - subspace_offset;
3499 exec_header->exec_dsize += subsection->vma - subspace_offset;
3500 subspace_offset += subsection->vma - subspace_offset;
3503 subsection->target_index = total_subspaces++;
3504 /* This is real data to be loaded from the file. */
3505 if (subsection->flags & SEC_LOAD)
3507 /* Update the size of the code & data. */
3508 if (abfd->flags & (EXEC_P | DYNAMIC)
3509 && subsection->flags & SEC_CODE)
3510 exec_header->exec_tsize += subsection->size;
3511 else if (abfd->flags & (EXEC_P | DYNAMIC)
3512 && subsection->flags & SEC_DATA)
3513 exec_header->exec_dsize += subsection->size;
3514 som_section_data (subsection)->subspace_dict->file_loc_init_value
3516 subsection->filepos = current_offset;
3517 current_offset += subsection->size;
3518 subspace_offset += subsection->size;
3520 /* Looks like uninitialized data. */
3523 /* Update the size of the bss section. */
3524 if (abfd->flags & (EXEC_P | DYNAMIC))
3525 exec_header->exec_bsize += subsection->size;
3527 som_section_data (subsection)->subspace_dict->file_loc_init_value
3529 som_section_data (subsection)->subspace_dict->
3530 initialization_length = 0;
3533 /* Goto the next section. */
3534 section = section->next;
3537 /* Finally compute the file positions for unloadable subspaces.
3538 If building an executable, start the unloadable stuff on its
3541 if (abfd->flags & (EXEC_P | DYNAMIC))
3542 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3544 obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
3545 section = abfd->sections;
3546 for (i = 0; i < num_spaces; i++)
3548 asection *subsection;
3551 while (!som_is_space (section))
3552 section = section->next;
3554 if (abfd->flags & (EXEC_P | DYNAMIC))
3555 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3557 /* Now look for all its subspaces. */
3558 for (subsection = abfd->sections;
3560 subsection = subsection->next)
3563 if (!som_is_subspace (subsection)
3564 || !som_is_container (section, subsection)
3565 || (subsection->flags & SEC_ALLOC) != 0)
3568 subsection->target_index = total_subspaces++;
3569 /* This is real data to be loaded from the file. */
3570 if ((subsection->flags & SEC_LOAD) == 0)
3572 som_section_data (subsection)->subspace_dict->file_loc_init_value
3574 subsection->filepos = current_offset;
3575 current_offset += subsection->size;
3577 /* Looks like uninitialized data. */
3580 som_section_data (subsection)->subspace_dict->file_loc_init_value
3582 som_section_data (subsection)->subspace_dict->
3583 initialization_length = subsection->size;
3586 /* Goto the next section. */
3587 section = section->next;
3590 /* If building an executable, then make sure to seek to and write
3591 one byte at the end of the file to make sure any necessary
3592 zeros are filled in. Ugh. */
3593 if (abfd->flags & (EXEC_P | DYNAMIC))
3594 current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
3595 if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0)
3597 if (bfd_bwrite ((void *) "", (bfd_size_type) 1, abfd) != 1)
3600 obj_som_file_hdr (abfd)->unloadable_sp_size
3601 = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location;
3603 /* Loader fixups are not supported in any way shape or form. */
3604 obj_som_file_hdr (abfd)->loader_fixup_location = 0;
3605 obj_som_file_hdr (abfd)->loader_fixup_total = 0;
3607 /* Done. Store the total size of the SOM so far. */
3608 obj_som_file_hdr (abfd)->som_length = current_offset;
3613 /* Finally, scribble out the various headers to the disk. */
3616 som_finish_writing (bfd *abfd)
3618 int num_spaces = som_count_spaces (abfd);
3619 asymbol **syms = bfd_get_outsymbols (abfd);
3621 int subspace_index = 0;
3624 unsigned long current_offset;
3625 unsigned int strings_size, total_reloc_size;
3628 /* We must set up the version identifier here as objcopy/strip copy
3629 private BFD data too late for us to handle this in som_begin_writing. */
3630 if (obj_som_exec_data (abfd)
3631 && obj_som_exec_data (abfd)->version_id)
3632 obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id;
3634 obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID;
3636 /* Next is the symbol table. These are fixed length records.
3638 Count the number of symbols to determine how much room is needed
3639 in the object file for the symbol table.
3641 The names of the symbols are stored in a separate string table,
3642 and the index for each symbol name into the string table is computed
3643 below. Therefore, it is not possible to write the symbol table
3646 These used to be output before the subspace contents, but they
3647 were moved here to work around a stupid bug in the hpux linker
3648 (fixed in hpux10). */
3649 current_offset = obj_som_file_hdr (abfd)->som_length;
3651 /* Make sure we're on a word boundary. */
3652 if (current_offset % 4)
3653 current_offset += (4 - (current_offset % 4));
3655 num_syms = bfd_get_symcount (abfd);
3656 obj_som_file_hdr (abfd)->symbol_location = current_offset;
3657 obj_som_file_hdr (abfd)->symbol_total = num_syms;
3658 current_offset += num_syms * sizeof (struct symbol_dictionary_record);
3660 /* Next are the symbol strings.
3661 Align them to a word boundary. */
3662 if (current_offset % 4)
3663 current_offset += (4 - (current_offset % 4));
3664 obj_som_file_hdr (abfd)->symbol_strings_location = current_offset;
3666 /* Scribble out the symbol strings. */
3667 if (! som_write_symbol_strings (abfd, current_offset, syms,
3668 num_syms, &strings_size,
3669 obj_som_compilation_unit (abfd)))
3672 /* Record total string table size in header and update the
3674 obj_som_file_hdr (abfd)->symbol_strings_size = strings_size;
3675 current_offset += strings_size;
3677 /* Do prep work before handling fixups. */
3678 som_prep_for_fixups (abfd,
3679 bfd_get_outsymbols (abfd),
3680 bfd_get_symcount (abfd));
3682 /* At the end of the file is the fixup stream which starts on a
3684 if (current_offset % 4)
3685 current_offset += (4 - (current_offset % 4));
3686 obj_som_file_hdr (abfd)->fixup_request_location = current_offset;
3688 /* Write the fixups and update fields in subspace headers which
3689 relate to the fixup stream. */
3690 if (! som_write_fixups (abfd, current_offset, &total_reloc_size))
3693 /* Record the total size of the fixup stream in the file header. */
3694 obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size;
3696 /* Done. Store the total size of the SOM. */
3697 obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size;
3699 /* Now that the symbol table information is complete, build and
3700 write the symbol table. */
3701 if (! som_build_and_write_symbol_table (abfd))
3704 /* Subspaces are written first so that we can set up information
3705 about them in their containing spaces as the subspace is written. */
3707 /* Seek to the start of the subspace dictionary records. */
3708 location = obj_som_file_hdr (abfd)->subspace_location;
3709 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3712 section = abfd->sections;
3713 /* Now for each loadable space write out records for its subspaces. */
3714 for (i = 0; i < num_spaces; i++)
3716 asection *subsection;
3719 while (!som_is_space (section))
3720 section = section->next;
3722 /* Now look for all its subspaces. */
3723 for (subsection = abfd->sections;
3725 subsection = subsection->next)
3728 /* Skip any section which does not correspond to a space
3729 or subspace. Or does not have SEC_ALLOC set (and therefore
3730 has no real bits on the disk). */
3731 if (!som_is_subspace (subsection)
3732 || !som_is_container (section, subsection)
3733 || (subsection->flags & SEC_ALLOC) == 0)
3736 /* If this is the first subspace for this space, then save
3737 the index of the subspace in its containing space. Also
3738 set "is_loadable" in the containing space. */
3740 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3742 som_section_data (section)->space_dict->is_loadable = 1;
3743 som_section_data (section)->space_dict->subspace_index
3747 /* Increment the number of subspaces seen and the number of
3748 subspaces contained within the current space. */
3750 som_section_data (section)->space_dict->subspace_quantity++;
3752 /* Mark the index of the current space within the subspace's
3753 dictionary record. */
3754 som_section_data (subsection)->subspace_dict->space_index = i;
3756 /* Dump the current subspace header. */
3757 amt = sizeof (struct som_subspace_dictionary_record);
3758 if (bfd_bwrite ((void *) som_section_data (subsection)->subspace_dict,
3762 /* Goto the next section. */
3763 section = section->next;
3766 /* Now repeat the process for unloadable subspaces. */
3767 section = abfd->sections;
3768 /* Now for each space write out records for its subspaces. */
3769 for (i = 0; i < num_spaces; i++)
3771 asection *subsection;
3774 while (!som_is_space (section))
3775 section = section->next;
3777 /* Now look for all its subspaces. */
3778 for (subsection = abfd->sections;
3780 subsection = subsection->next)
3783 /* Skip any section which does not correspond to a space or
3784 subspace, or which SEC_ALLOC set (and therefore handled
3785 in the loadable spaces/subspaces code above). */
3787 if (!som_is_subspace (subsection)
3788 || !som_is_container (section, subsection)
3789 || (subsection->flags & SEC_ALLOC) != 0)
3792 /* If this is the first subspace for this space, then save
3793 the index of the subspace in its containing space. Clear
3796 if (som_section_data (section)->space_dict->subspace_quantity == 0)
3798 som_section_data (section)->space_dict->is_loadable = 0;
3799 som_section_data (section)->space_dict->subspace_index
3803 /* Increment the number of subspaces seen and the number of
3804 subspaces contained within the current space. */
3805 som_section_data (section)->space_dict->subspace_quantity++;
3808 /* Mark the index of the current space within the subspace's
3809 dictionary record. */
3810 som_section_data (subsection)->subspace_dict->space_index = i;
3812 /* Dump this subspace header. */
3813 amt = sizeof (struct som_subspace_dictionary_record);
3814 if (bfd_bwrite ((void *) som_section_data (subsection)->subspace_dict,
3818 /* Goto the next section. */
3819 section = section->next;
3822 /* All the subspace dictionary records are written, and all the
3823 fields are set up in the space dictionary records.
3825 Seek to the right location and start writing the space
3826 dictionary records. */
3827 location = obj_som_file_hdr (abfd)->space_location;
3828 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3831 section = abfd->sections;
3832 for (i = 0; i < num_spaces; i++)
3835 while (!som_is_space (section))
3836 section = section->next;
3838 /* Dump its header. */
3839 amt = sizeof (struct space_dictionary_record);
3840 if (bfd_bwrite ((void *) som_section_data (section)->space_dict,
3844 /* Goto the next section. */
3845 section = section->next;
3848 /* Write the compilation unit record if there is one. */
3849 if (obj_som_compilation_unit (abfd))
3851 location = obj_som_file_hdr (abfd)->compiler_location;
3852 if (bfd_seek (abfd, location, SEEK_SET) != 0)
3856 if (bfd_bwrite ((void *) obj_som_compilation_unit (abfd), amt, abfd) != amt)
3860 /* Setting of the system_id has to happen very late now that copying of
3861 BFD private data happens *after* section contents are set. */
3862 if (abfd->flags & (EXEC_P | DYNAMIC))
3863 obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id;
3864 else if (bfd_get_mach (abfd) == pa20)
3865 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0;
3866 else if (bfd_get_mach (abfd) == pa11)
3867 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1;
3869 obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0;
3871 /* Compute the checksum for the file header just before writing
3872 the header to disk. */
3873 obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd);
3875 /* Only thing left to do is write out the file header. It is always
3876 at location zero. Seek there and write it. */
3877 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
3879 amt = sizeof (struct header);
3880 if (bfd_bwrite ((void *) obj_som_file_hdr (abfd), amt, abfd) != amt)
3883 /* Now write the exec header. */
3884 if (abfd->flags & (EXEC_P | DYNAMIC))
3886 long tmp, som_length;
3887 struct som_exec_auxhdr *exec_header;
3889 exec_header = obj_som_exec_hdr (abfd);
3890 exec_header->exec_entry = bfd_get_start_address (abfd);
3891 exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags;
3893 /* Oh joys. Ram some of the BSS data into the DATA section
3894 to be compatible with how the hp linker makes objects
3895 (saves memory space). */
3896 tmp = exec_header->exec_dsize;
3897 tmp = SOM_ALIGN (tmp, PA_PAGESIZE);
3898 exec_header->exec_bsize -= (tmp - exec_header->exec_dsize);
3899 if (exec_header->exec_bsize < 0)
3900 exec_header->exec_bsize = 0;
3901 exec_header->exec_dsize = tmp;
3903 /* Now perform some sanity checks. The idea is to catch bogons now and
3904 inform the user, instead of silently generating a bogus file. */
3905 som_length = obj_som_file_hdr (abfd)->som_length;
3906 if (exec_header->exec_tfile + exec_header->exec_tsize > som_length
3907 || exec_header->exec_dfile + exec_header->exec_dsize > som_length)
3909 bfd_set_error (bfd_error_bad_value);
3913 if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location,
3918 if (bfd_bwrite ((void *) exec_header, amt, abfd) != amt)
3924 /* Compute and return the checksum for a SOM file header. */
3926 static unsigned long
3927 som_compute_checksum (bfd *abfd)
3929 unsigned long checksum, count, i;
3930 unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd);
3933 count = sizeof (struct header) / sizeof (unsigned long);
3934 for (i = 0; i < count; i++)
3935 checksum ^= *(buffer + i);
3941 som_bfd_derive_misc_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
3943 struct som_misc_symbol_info *info)
3946 memset (info, 0, sizeof (struct som_misc_symbol_info));
3948 /* The HP SOM linker requires detailed type information about
3949 all symbols (including undefined symbols!). Unfortunately,
3950 the type specified in an import/export statement does not
3951 always match what the linker wants. Severe braindamage. */
3953 /* Section symbols will not have a SOM symbol type assigned to
3954 them yet. Assign all section symbols type ST_DATA. */
3955 if (sym->flags & BSF_SECTION_SYM)
3956 info->symbol_type = ST_DATA;
3959 /* For BFD style common, the linker will choke unless we set the
3960 type and scope to ST_STORAGE and SS_UNSAT, respectively. */
3961 if (bfd_is_com_section (sym->section))
3963 info->symbol_type = ST_STORAGE;
3964 info->symbol_scope = SS_UNSAT;
3967 /* It is possible to have a symbol without an associated
3968 type. This happens if the user imported the symbol
3969 without a type and the symbol was never defined
3970 locally. If BSF_FUNCTION is set for this symbol, then
3971 assign it type ST_CODE (the HP linker requires undefined
3972 external functions to have type ST_CODE rather than ST_ENTRY). */
3973 else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
3974 || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
3975 && bfd_is_und_section (sym->section)
3976 && sym->flags & BSF_FUNCTION)
3977 info->symbol_type = ST_CODE;
3979 /* Handle function symbols which were defined in this file.
3980 They should have type ST_ENTRY. Also retrieve the argument
3981 relocation bits from the SOM backend information. */
3982 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY
3983 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE
3984 && (sym->flags & BSF_FUNCTION))
3985 || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN
3986 && (sym->flags & BSF_FUNCTION)))
3988 info->symbol_type = ST_ENTRY;
3989 info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc;
3990 info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level;
3993 /* For unknown symbols set the symbol's type based on the symbol's
3994 section (ST_DATA for DATA sections, ST_CODE for CODE sections). */
3995 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN)
3997 if (sym->section->flags & SEC_CODE)
3998 info->symbol_type = ST_CODE;
4000 info->symbol_type = ST_DATA;
4003 /* From now on it's a very simple mapping. */
4004 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE)
4005 info->symbol_type = ST_ABSOLUTE;
4006 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE)
4007 info->symbol_type = ST_CODE;
4008 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA)
4009 info->symbol_type = ST_DATA;
4010 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE)
4011 info->symbol_type = ST_MILLICODE;
4012 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL)
4013 info->symbol_type = ST_PLABEL;
4014 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG)
4015 info->symbol_type = ST_PRI_PROG;
4016 else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG)
4017 info->symbol_type = ST_SEC_PROG;
4020 /* Now handle the symbol's scope. Exported data which is not
4021 in the common section has scope SS_UNIVERSAL. Note scope
4022 of common symbols was handled earlier! */
4023 if (bfd_is_com_section (sym->section))
4025 else if (bfd_is_und_section (sym->section))
4026 info->symbol_scope = SS_UNSAT;
4027 else if (sym->flags & (BSF_EXPORT | BSF_WEAK))
4028 info->symbol_scope = SS_UNIVERSAL;
4029 /* Anything else which is not in the common section has scope
4032 info->symbol_scope = SS_LOCAL;
4034 /* Now set the symbol_info field. It has no real meaning
4035 for undefined or common symbols, but the HP linker will
4036 choke if it's not set to some "reasonable" value. We
4037 use zero as a reasonable value. */
4038 if (bfd_is_com_section (sym->section)
4039 || bfd_is_und_section (sym->section)
4040 || bfd_is_abs_section (sym->section))
4041 info->symbol_info = 0;
4042 /* For all other symbols, the symbol_info field contains the
4043 subspace index of the space this symbol is contained in. */
4045 info->symbol_info = sym->section->target_index;
4047 /* Set the symbol's value. */
4048 info->symbol_value = sym->value + sym->section->vma;
4050 /* The secondary_def field is for "weak" symbols. */
4051 if (sym->flags & BSF_WEAK)
4052 info->secondary_def = TRUE;
4054 info->secondary_def = FALSE;
4056 /* The is_comdat, is_common and dup_common fields provide various
4059 For data symbols, setting IS_COMMON provides Fortran style common
4060 (duplicate definitions and overlapped initialization). Setting both
4061 IS_COMMON and DUP_COMMON provides Cobol style common (duplicate
4062 definitions as long as they are all the same length). In a shared
4063 link data symbols retain their IS_COMMON and DUP_COMMON flags.
4064 An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON
4065 symbol except in that it loses its IS_COMDAT flag in a shared link.
4067 For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal
4068 DUP_COMMON code symbols are not exported from shared libraries.
4069 IS_COMDAT symbols are exported but they lose their IS_COMDAT flag.
4071 We take a simplified approach to setting the is_comdat, is_common
4072 and dup_common flags in symbols based on the flag settings of their
4073 subspace. This avoids having to add directives like `.comdat' but
4074 the linker behavior is probably undefined if there is more than one
4075 universal symbol (comdat key sysmbol) in a subspace.
4077 The behavior of these flags is not well documentmented, so there
4078 may be bugs and some surprising interactions with other flags. */
4079 if (som_section_data (sym->section)
4080 && som_section_data (sym->section)->subspace_dict
4081 && info->symbol_scope == SS_UNIVERSAL
4082 && (info->symbol_type == ST_ENTRY
4083 || info->symbol_type == ST_CODE
4084 || info->symbol_type == ST_DATA))
4087 = som_section_data (sym->section)->subspace_dict->is_comdat;
4089 = som_section_data (sym->section)->subspace_dict->is_common;
4091 = som_section_data (sym->section)->subspace_dict->dup_common;
4095 /* Build and write, in one big chunk, the entire symbol table for
4099 som_build_and_write_symbol_table (bfd *abfd)
4101 unsigned int num_syms = bfd_get_symcount (abfd);
4102 file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location;
4103 asymbol **bfd_syms = obj_som_sorted_syms (abfd);
4104 struct symbol_dictionary_record *som_symtab = NULL;
4106 bfd_size_type symtab_size;
4108 /* Compute total symbol table size and allocate a chunk of memory
4109 to hold the symbol table as we build it. */
4110 symtab_size = num_syms;
4111 symtab_size *= sizeof (struct symbol_dictionary_record);
4112 som_symtab = bfd_zmalloc (symtab_size);
4113 if (som_symtab == NULL && symtab_size != 0)
4116 /* Walk over each symbol. */
4117 for (i = 0; i < num_syms; i++)
4119 struct som_misc_symbol_info info;
4121 /* This is really an index into the symbol strings table.
4122 By the time we get here, the index has already been
4123 computed and stored into the name field in the BFD symbol. */
4124 som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset;
4126 /* Derive SOM information from the BFD symbol. */
4127 som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info);
4130 som_symtab[i].symbol_type = info.symbol_type;
4131 som_symtab[i].symbol_scope = info.symbol_scope;
4132 som_symtab[i].arg_reloc = info.arg_reloc;
4133 som_symtab[i].symbol_info = info.symbol_info;
4134 som_symtab[i].xleast = 3;
4135 som_symtab[i].symbol_value = info.symbol_value | info.priv_level;
4136 som_symtab[i].secondary_def = info.secondary_def;
4137 som_symtab[i].is_comdat = info.is_comdat;
4138 som_symtab[i].is_common = info.is_common;
4139 som_symtab[i].dup_common = info.dup_common;
4142 /* Everything is ready, seek to the right location and
4143 scribble out the symbol table. */
4144 if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0)
4147 if (bfd_bwrite ((void *) som_symtab, symtab_size, abfd) != symtab_size)
4150 if (som_symtab != NULL)
4154 if (som_symtab != NULL)
4159 /* Write an object in SOM format. */
4162 som_write_object_contents (bfd *abfd)
4164 if (! abfd->output_has_begun)
4166 /* Set up fixed parts of the file, space, and subspace headers.
4167 Notify the world that output has begun. */
4168 som_prep_headers (abfd);
4169 abfd->output_has_begun = TRUE;
4170 /* Start writing the object file. This include all the string
4171 tables, fixup streams, and other portions of the object file. */
4172 som_begin_writing (abfd);
4175 return som_finish_writing (abfd);
4178 /* Read and save the string table associated with the given BFD. */
4181 som_slurp_string_table (bfd *abfd)
4186 /* Use the saved version if its available. */
4187 if (obj_som_stringtab (abfd) != NULL)
4190 /* I don't think this can currently happen, and I'm not sure it should
4191 really be an error, but it's better than getting unpredictable results
4192 from the host's malloc when passed a size of zero. */
4193 if (obj_som_stringtab_size (abfd) == 0)
4195 bfd_set_error (bfd_error_no_symbols);
4199 /* Allocate and read in the string table. */
4200 amt = obj_som_stringtab_size (abfd);
4201 stringtab = bfd_zmalloc (amt);
4202 if (stringtab == NULL)
4205 if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0)
4208 if (bfd_bread (stringtab, amt, abfd) != amt)
4211 /* Save our results and return success. */
4212 obj_som_stringtab (abfd) = stringtab;
4216 /* Return the amount of data (in bytes) required to hold the symbol
4217 table for this object. */
4220 som_get_symtab_upper_bound (bfd *abfd)
4222 if (!som_slurp_symbol_table (abfd))
4225 return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *);
4228 /* Convert from a SOM subspace index to a BFD section. */
4231 bfd_section_from_som_symbol (bfd *abfd, struct symbol_dictionary_record *symbol)
4235 /* The meaning of the symbol_info field changes for functions
4236 within executables. So only use the quick symbol_info mapping for
4237 incomplete objects and non-function symbols in executables. */
4238 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
4239 || (symbol->symbol_type != ST_ENTRY
4240 && symbol->symbol_type != ST_PRI_PROG
4241 && symbol->symbol_type != ST_SEC_PROG
4242 && symbol->symbol_type != ST_MILLICODE))
4244 int index = symbol->symbol_info;
4246 for (section = abfd->sections; section != NULL; section = section->next)
4247 if (section->target_index == index && som_is_subspace (section))
4252 unsigned int value = symbol->symbol_value;
4254 /* For executables we will have to use the symbol's address and
4255 find out what section would contain that address. Yuk. */
4256 for (section = abfd->sections; section; section = section->next)
4257 if (value >= section->vma
4258 && value <= section->vma + section->size
4259 && som_is_subspace (section))
4263 /* Could be a symbol from an external library (such as an OMOS
4264 shared library). Don't abort. */
4265 return bfd_abs_section_ptr;
4268 /* Read and save the symbol table associated with the given BFD. */
4271 som_slurp_symbol_table (bfd *abfd)
4273 int symbol_count = bfd_get_symcount (abfd);
4274 int symsize = sizeof (struct symbol_dictionary_record);
4276 struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp;
4277 som_symbol_type *sym, *symbase;
4280 /* Return saved value if it exists. */
4281 if (obj_som_symtab (abfd) != NULL)
4282 goto successful_return;
4284 /* Special case. This is *not* an error. */
4285 if (symbol_count == 0)
4286 goto successful_return;
4288 if (!som_slurp_string_table (abfd))
4291 stringtab = obj_som_stringtab (abfd);
4294 amt *= sizeof (som_symbol_type);
4295 symbase = bfd_zmalloc (amt);
4296 if (symbase == NULL)
4299 /* Read in the external SOM representation. */
4302 buf = bfd_malloc (amt);
4303 if (buf == NULL && amt != 0)
4305 if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0)
4307 if (bfd_bread (buf, amt, abfd) != amt)
4310 /* Iterate over all the symbols and internalize them. */
4311 endbufp = buf + symbol_count;
4312 for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp)
4314 /* I don't think we care about these. */
4315 if (bufp->symbol_type == ST_SYM_EXT
4316 || bufp->symbol_type == ST_ARG_EXT)
4319 /* Set some private data we care about. */
4320 if (bufp->symbol_type == ST_NULL)
4321 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4322 else if (bufp->symbol_type == ST_ABSOLUTE)
4323 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE;
4324 else if (bufp->symbol_type == ST_DATA)
4325 som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA;
4326 else if (bufp->symbol_type == ST_CODE)
4327 som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE;
4328 else if (bufp->symbol_type == ST_PRI_PROG)
4329 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG;
4330 else if (bufp->symbol_type == ST_SEC_PROG)
4331 som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG;
4332 else if (bufp->symbol_type == ST_ENTRY)
4333 som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY;
4334 else if (bufp->symbol_type == ST_MILLICODE)
4335 som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE;
4336 else if (bufp->symbol_type == ST_PLABEL)
4337 som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL;
4339 som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN;
4340 som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc;
4342 /* Some reasonable defaults. */
4343 sym->symbol.the_bfd = abfd;
4344 sym->symbol.name = bufp->name.n_strx + stringtab;
4345 sym->symbol.value = bufp->symbol_value;
4346 sym->symbol.section = 0;
4347 sym->symbol.flags = 0;
4349 switch (bufp->symbol_type)
4353 sym->symbol.flags |= BSF_FUNCTION;
4354 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4355 sym->symbol.value & 0x3;
4356 sym->symbol.value &= ~0x3;
4363 som_symbol_data (sym)->tc_data.ap.hppa_priv_level =
4364 sym->symbol.value & 0x3;
4365 sym->symbol.value &= ~0x3;
4366 /* If the symbol's scope is SS_UNSAT, then these are
4367 undefined function symbols. */
4368 if (bufp->symbol_scope == SS_UNSAT)
4369 sym->symbol.flags |= BSF_FUNCTION;
4375 /* Handle scoping and section information. */
4376 switch (bufp->symbol_scope)
4378 /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols,
4379 so the section associated with this symbol can't be known. */
4381 if (bufp->symbol_type != ST_STORAGE)
4382 sym->symbol.section = bfd_und_section_ptr;
4384 sym->symbol.section = bfd_com_section_ptr;
4385 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4389 if (bufp->symbol_type != ST_STORAGE)
4390 sym->symbol.section = bfd_und_section_ptr;
4392 sym->symbol.section = bfd_com_section_ptr;
4396 sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL);
4397 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4398 sym->symbol.value -= sym->symbol.section->vma;
4402 sym->symbol.flags |= BSF_LOCAL;
4403 sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp);
4404 sym->symbol.value -= sym->symbol.section->vma;
4408 /* Check for a weak symbol. */
4409 if (bufp->secondary_def)
4410 sym->symbol.flags |= BSF_WEAK;
4412 /* Mark section symbols and symbols used by the debugger.
4413 Note $START$ is a magic code symbol, NOT a section symbol. */
4414 if (sym->symbol.name[0] == '$'
4415 && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$'
4416 && !strcmp (sym->symbol.name, sym->symbol.section->name))
4417 sym->symbol.flags |= BSF_SECTION_SYM;
4418 else if (CONST_STRNEQ (sym->symbol.name, "L$0\002"))
4420 sym->symbol.flags |= BSF_SECTION_SYM;
4421 sym->symbol.name = sym->symbol.section->name;
4423 else if (CONST_STRNEQ (sym->symbol.name, "L$0\001"))
4424 sym->symbol.flags |= BSF_DEBUGGING;
4426 /* Note increment at bottom of loop, since we skip some symbols
4427 we can not include it as part of the for statement. */
4431 /* We modify the symbol count to record the number of BFD symbols we
4433 bfd_get_symcount (abfd) = sym - symbase;
4435 /* Save our results and return success. */
4436 obj_som_symtab (abfd) = symbase;
4448 /* Canonicalize a SOM symbol table. Return the number of entries
4449 in the symbol table. */
4452 som_canonicalize_symtab (bfd *abfd, asymbol **location)
4455 som_symbol_type *symbase;
4457 if (!som_slurp_symbol_table (abfd))
4460 i = bfd_get_symcount (abfd);
4461 symbase = obj_som_symtab (abfd);
4463 for (; i > 0; i--, location++, symbase++)
4464 *location = &symbase->symbol;
4466 /* Final null pointer. */
4468 return (bfd_get_symcount (abfd));
4471 /* Make a SOM symbol. There is nothing special to do here. */
4474 som_make_empty_symbol (bfd *abfd)
4476 bfd_size_type amt = sizeof (som_symbol_type);
4477 som_symbol_type *new = bfd_zalloc (abfd, amt);
4481 new->symbol.the_bfd = abfd;
4483 return &new->symbol;
4486 /* Print symbol information. */
4489 som_print_symbol (bfd *abfd,
4492 bfd_print_symbol_type how)
4494 FILE *file = (FILE *) afile;
4498 case bfd_print_symbol_name:
4499 fprintf (file, "%s", symbol->name);
4501 case bfd_print_symbol_more:
4502 fprintf (file, "som ");
4503 fprintf_vma (file, symbol->value);
4504 fprintf (file, " %lx", (long) symbol->flags);
4506 case bfd_print_symbol_all:
4508 const char *section_name;
4510 section_name = symbol->section ? symbol->section->name : "(*none*)";
4511 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
4512 fprintf (file, " %s\t%s", section_name, symbol->name);
4519 som_bfd_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
4522 return name[0] == 'L' && name[1] == '$';
4525 /* Count or process variable-length SOM fixup records.
4527 To avoid code duplication we use this code both to compute the number
4528 of relocations requested by a stream, and to internalize the stream.
4530 When computing the number of relocations requested by a stream the
4531 variables rptr, section, and symbols have no meaning.
4533 Return the number of relocations requested by the fixup stream. When
4536 This needs at least two or three more passes to get it cleaned up. */
4539 som_set_reloc_info (unsigned char *fixup,
4541 arelent *internal_relocs,
4544 bfd_boolean just_count)
4546 unsigned int op, varname, deallocate_contents = 0;
4547 unsigned char *end_fixups = &fixup[end];
4548 const struct fixup_format *fp;
4550 unsigned char *save_fixup;
4551 int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
4553 arelent *rptr = internal_relocs;
4554 unsigned int offset = 0;
4556 #define var(c) variables[(c) - 'A']
4557 #define push(v) (*sp++ = (v))
4558 #define pop() (*--sp)
4559 #define emptystack() (sp == stack)
4561 som_initialize_reloc_queue (reloc_queue);
4562 memset (variables, 0, sizeof (variables));
4563 memset (stack, 0, sizeof (stack));
4566 saved_unwind_bits = 0;
4569 while (fixup < end_fixups)
4571 /* Save pointer to the start of this fixup. We'll use
4572 it later to determine if it is necessary to put this fixup
4576 /* Get the fixup code and its associated format. */
4578 fp = &som_fixup_formats[op];
4580 /* Handle a request for a previous fixup. */
4581 if (*fp->format == 'P')
4583 /* Get pointer to the beginning of the prev fixup, move
4584 the repeated fixup to the head of the queue. */
4585 fixup = reloc_queue[fp->D].reloc;
4586 som_reloc_queue_fix (reloc_queue, fp->D);
4589 /* Get the fixup code and its associated format. */
4591 fp = &som_fixup_formats[op];
4594 /* If this fixup will be passed to BFD, set some reasonable defaults. */
4596 && som_hppa_howto_table[op].type != R_NO_RELOCATION
4597 && som_hppa_howto_table[op].type != R_DATA_OVERRIDE)
4599 rptr->address = offset;
4600 rptr->howto = &som_hppa_howto_table[op];
4602 rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
4605 /* Set default input length to 0. Get the opcode class index
4609 var ('U') = saved_unwind_bits;
4611 /* Get the opcode format. */
4614 /* Process the format string. Parsing happens in two phases,
4615 parse RHS, then assign to LHS. Repeat until no more
4616 characters in the format string. */
4619 /* The variable this pass is going to compute a value for. */
4622 /* Start processing RHS. Continue until a NULL or '=' is found. */
4627 /* If this is a variable, push it on the stack. */
4631 /* If this is a lower case letter, then it represents
4632 additional data from the fixup stream to be pushed onto
4634 else if (ISLOWER (c))
4636 int bits = (c - 'a') * 8;
4637 for (v = 0; c > 'a'; --c)
4638 v = (v << 8) | *fixup++;
4640 v = sign_extend (v, bits);
4644 /* A decimal constant. Push it on the stack. */
4645 else if (ISDIGIT (c))
4648 while (ISDIGIT (*cp))
4649 v = (v * 10) + (*cp++ - '0');
4653 /* An operator. Pop two two values from the stack and
4654 use them as operands to the given operation. Push
4655 the result of the operation back on the stack. */
4677 while (*cp && *cp != '=');
4679 /* Move over the equal operator. */
4682 /* Pop the RHS off the stack. */
4685 /* Perform the assignment. */
4688 /* Handle side effects. and special 'O' stack cases. */
4691 /* Consume some bytes from the input space. */
4695 /* A symbol to use in the relocation. Make a note
4696 of this if we are not just counting. */
4699 rptr->sym_ptr_ptr = &symbols[c];
4701 /* Argument relocation bits for a function call. */
4705 unsigned int tmp = var ('R');
4708 if ((som_hppa_howto_table[op].type == R_PCREL_CALL
4709 && R_PCREL_CALL + 10 > op)
4710 || (som_hppa_howto_table[op].type == R_ABS_CALL
4711 && R_ABS_CALL + 10 > op))
4713 /* Simple encoding. */
4720 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2;
4722 rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4;
4724 rptr->addend |= 1 << 8 | 1 << 6;
4726 rptr->addend |= 1 << 8;
4730 unsigned int tmp1, tmp2;
4732 /* First part is easy -- low order two bits are
4733 directly copied, then shifted away. */
4734 rptr->addend = tmp & 0x3;
4737 /* Diving the result by 10 gives us the second
4738 part. If it is 9, then the first two words
4739 are a double precision paramater, else it is
4740 3 * the first arg bits + the 2nd arg bits. */
4744 rptr->addend += (0xe << 6);
4747 /* Get the two pieces. */
4750 /* Put them in the addend. */
4751 rptr->addend += (tmp2 << 8) + (tmp1 << 6);
4754 /* What's left is the third part. It's unpacked
4755 just like the second. */
4757 rptr->addend += (0xe << 2);
4762 rptr->addend += (tmp2 << 4) + (tmp << 2);
4765 rptr->addend = HPPA_R_ADDEND (rptr->addend, 0);
4768 /* Handle the linker expression stack. */
4773 subop = comp1_opcodes;
4776 subop = comp2_opcodes;
4779 subop = comp3_opcodes;
4784 while (*subop <= (unsigned char) c)
4788 /* The lower 32unwind bits must be persistent. */
4790 saved_unwind_bits = var ('U');
4798 /* If we used a previous fixup, clean up after it. */
4801 fixup = save_fixup + 1;
4805 else if (fixup > save_fixup + 1)
4806 som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue);
4808 /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION
4810 if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE
4811 && som_hppa_howto_table[op].type != R_NO_RELOCATION)
4813 /* Done with a single reloction. Loop back to the top. */
4816 if (som_hppa_howto_table[op].type == R_ENTRY)
4817 rptr->addend = var ('T');
4818 else if (som_hppa_howto_table[op].type == R_EXIT)
4819 rptr->addend = var ('U');
4820 else if (som_hppa_howto_table[op].type == R_PCREL_CALL
4821 || som_hppa_howto_table[op].type == R_ABS_CALL)
4823 else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL)
4825 /* Try what was specified in R_DATA_OVERRIDE first
4826 (if anything). Then the hard way using the
4827 section contents. */
4828 rptr->addend = var ('V');
4830 if (rptr->addend == 0 && !section->contents)
4832 /* Got to read the damn contents first. We don't
4833 bother saving the contents (yet). Add it one
4834 day if the need arises. */
4836 if (!bfd_malloc_and_get_section (section->owner, section,
4839 if (contents != NULL)
4841 return (unsigned) -1;
4843 section->contents = contents;
4844 deallocate_contents = 1;
4846 else if (rptr->addend == 0)
4847 rptr->addend = bfd_get_32 (section->owner,
4849 + offset - var ('L')));
4853 rptr->addend = var ('V');
4857 /* Now that we've handled a "full" relocation, reset
4859 memset (variables, 0, sizeof (variables));
4860 memset (stack, 0, sizeof (stack));
4863 if (deallocate_contents)
4864 free (section->contents);
4874 /* Read in the relocs (aka fixups in SOM terms) for a section.
4876 som_get_reloc_upper_bound calls this routine with JUST_COUNT
4877 set to TRUE to indicate it only needs a count of the number
4878 of actual relocations. */
4881 som_slurp_reloc_table (bfd *abfd,
4884 bfd_boolean just_count)
4886 unsigned char *external_relocs;
4887 unsigned int fixup_stream_size;
4888 arelent *internal_relocs;
4889 unsigned int num_relocs;
4892 fixup_stream_size = som_section_data (section)->reloc_size;
4893 /* If there were no relocations, then there is nothing to do. */
4894 if (section->reloc_count == 0)
4897 /* If reloc_count is -1, then the relocation stream has not been
4898 parsed. We must do so now to know how many relocations exist. */
4899 if (section->reloc_count == (unsigned) -1)
4901 amt = fixup_stream_size;
4902 external_relocs = bfd_malloc (amt);
4903 if (external_relocs == NULL)
4905 /* Read in the external forms. */
4907 obj_som_reloc_filepos (abfd) + section->rel_filepos,
4911 if (bfd_bread (external_relocs, amt, abfd) != amt)
4914 /* Let callers know how many relocations found.
4915 also save the relocation stream as we will
4917 section->reloc_count = som_set_reloc_info (external_relocs,
4919 NULL, NULL, NULL, TRUE);
4921 som_section_data (section)->reloc_stream = external_relocs;
4924 /* If the caller only wanted a count, then return now. */
4928 num_relocs = section->reloc_count;
4929 external_relocs = som_section_data (section)->reloc_stream;
4930 /* Return saved information about the relocations if it is available. */
4931 if (section->relocation != NULL)
4935 amt *= sizeof (arelent);
4936 internal_relocs = bfd_zalloc (abfd, (amt));
4937 if (internal_relocs == NULL)
4940 /* Process and internalize the relocations. */
4941 som_set_reloc_info (external_relocs, fixup_stream_size,
4942 internal_relocs, section, symbols, FALSE);
4944 /* We're done with the external relocations. Free them. */
4945 free (external_relocs);
4946 som_section_data (section)->reloc_stream = NULL;
4948 /* Save our results and return success. */
4949 section->relocation = internal_relocs;
4953 /* Return the number of bytes required to store the relocation
4954 information associated with the given section. */
4957 som_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
4959 /* If section has relocations, then read in the relocation stream
4960 and parse it to determine how many relocations exist. */
4961 if (asect->flags & SEC_RELOC)
4963 if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE))
4965 return (asect->reloc_count + 1) * sizeof (arelent *);
4968 /* There are no relocations. Return enough space to hold the
4969 NULL pointer which will be installed if som_canonicalize_reloc
4971 return sizeof (arelent *);
4974 /* Convert relocations from SOM (external) form into BFD internal
4975 form. Return the number of relocations. */
4978 som_canonicalize_reloc (bfd *abfd,
4986 if (! som_slurp_reloc_table (abfd, section, symbols, FALSE))
4989 count = section->reloc_count;
4990 tblptr = section->relocation;
4993 *relptr++ = tblptr++;
4996 return section->reloc_count;
4999 extern const bfd_target som_vec;
5001 /* A hook to set up object file dependent section information. */
5004 som_new_section_hook (bfd *abfd, asection *newsect)
5006 if (!newsect->used_by_bfd)
5008 bfd_size_type amt = sizeof (struct som_section_data_struct);
5010 newsect->used_by_bfd = bfd_zalloc (abfd, amt);
5011 if (!newsect->used_by_bfd)
5014 newsect->alignment_power = 3;
5016 /* We allow more than three sections internally. */
5017 return _bfd_generic_new_section_hook (abfd, newsect);
5020 /* Copy any private info we understand from the input symbol
5021 to the output symbol. */
5024 som_bfd_copy_private_symbol_data (bfd *ibfd,
5029 struct som_symbol *input_symbol = (struct som_symbol *) isymbol;
5030 struct som_symbol *output_symbol = (struct som_symbol *) osymbol;
5032 /* One day we may try to grok other private data. */
5033 if (ibfd->xvec->flavour != bfd_target_som_flavour
5034 || obfd->xvec->flavour != bfd_target_som_flavour)
5037 /* The only private information we need to copy is the argument relocation
5039 output_symbol->tc_data.ap.hppa_arg_reloc =
5040 input_symbol->tc_data.ap.hppa_arg_reloc;
5045 /* Copy any private info we understand from the input section
5046 to the output section. */
5049 som_bfd_copy_private_section_data (bfd *ibfd,
5056 /* One day we may try to grok other private data. */
5057 if (ibfd->xvec->flavour != bfd_target_som_flavour
5058 || obfd->xvec->flavour != bfd_target_som_flavour
5059 || (!som_is_space (isection) && !som_is_subspace (isection)))
5062 amt = sizeof (struct som_copyable_section_data_struct);
5063 som_section_data (osection)->copy_data = bfd_zalloc (obfd, amt);
5064 if (som_section_data (osection)->copy_data == NULL)
5067 memcpy (som_section_data (osection)->copy_data,
5068 som_section_data (isection)->copy_data,
5069 sizeof (struct som_copyable_section_data_struct));
5071 /* Reparent if necessary. */
5072 if (som_section_data (osection)->copy_data->container)
5073 som_section_data (osection)->copy_data->container =
5074 som_section_data (osection)->copy_data->container->output_section;
5079 /* Copy any private info we understand from the input bfd
5080 to the output bfd. */
5083 som_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
5085 /* One day we may try to grok other private data. */
5086 if (ibfd->xvec->flavour != bfd_target_som_flavour
5087 || obfd->xvec->flavour != bfd_target_som_flavour)
5090 /* Allocate some memory to hold the data we need. */
5091 obj_som_exec_data (obfd) = bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data));
5092 if (obj_som_exec_data (obfd) == NULL)
5095 /* Now copy the data. */
5096 memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd),
5097 sizeof (struct som_exec_data));
5102 /* Display the SOM header. */
5105 som_bfd_print_private_bfd_data (bfd *abfd, void *farg)
5107 struct som_exec_auxhdr *exec_header;
5108 struct aux_id* auxhdr;
5113 exec_header = obj_som_exec_hdr (abfd);
5116 fprintf (f, _("\nExec Auxiliary Header\n"));
5117 fprintf (f, " flags ");
5118 auxhdr = &exec_header->som_auxhdr;
5119 if (auxhdr->mandatory)
5120 fprintf (f, "mandatory ");
5122 fprintf (f, "copy ");
5124 fprintf (f, "append ");
5126 fprintf (f, "ignore ");
5128 fprintf (f, " type %#x\n", auxhdr->type);
5129 fprintf (f, " length %#x\n", auxhdr->length);
5131 /* Note that, depending on the HP-UX version, the following fields can be
5132 either ints, or longs. */
5134 fprintf (f, " text size %#lx\n", (long) exec_header->exec_tsize);
5135 fprintf (f, " text memory offset %#lx\n", (long) exec_header->exec_tmem);
5136 fprintf (f, " text file offset %#lx\n", (long) exec_header->exec_tfile);
5137 fprintf (f, " data size %#lx\n", (long) exec_header->exec_dsize);
5138 fprintf (f, " data memory offset %#lx\n", (long) exec_header->exec_dmem);
5139 fprintf (f, " data file offset %#lx\n", (long) exec_header->exec_dfile);
5140 fprintf (f, " bss size %#lx\n", (long) exec_header->exec_bsize);
5141 fprintf (f, " entry point %#lx\n", (long) exec_header->exec_entry);
5142 fprintf (f, " loader flags %#lx\n", (long) exec_header->exec_flags);
5143 fprintf (f, " bss initializer %#lx\n", (long) exec_header->exec_bfill);
5149 /* Set backend info for sections which can not be described
5150 in the BFD data structures. */
5153 bfd_som_set_section_attributes (asection *section,
5156 unsigned int sort_key,
5159 /* Allocate memory to hold the magic information. */
5160 if (som_section_data (section)->copy_data == NULL)
5162 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5164 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5165 if (som_section_data (section)->copy_data == NULL)
5168 som_section_data (section)->copy_data->sort_key = sort_key;
5169 som_section_data (section)->copy_data->is_defined = defined;
5170 som_section_data (section)->copy_data->is_private = private;
5171 som_section_data (section)->copy_data->container = section;
5172 som_section_data (section)->copy_data->space_number = spnum;
5176 /* Set backend info for subsections which can not be described
5177 in the BFD data structures. */
5180 bfd_som_set_subsection_attributes (asection *section,
5181 asection *container,
5183 unsigned int sort_key,
5189 /* Allocate memory to hold the magic information. */
5190 if (som_section_data (section)->copy_data == NULL)
5192 bfd_size_type amt = sizeof (struct som_copyable_section_data_struct);
5194 som_section_data (section)->copy_data = bfd_zalloc (section->owner, amt);
5195 if (som_section_data (section)->copy_data == NULL)
5198 som_section_data (section)->copy_data->sort_key = sort_key;
5199 som_section_data (section)->copy_data->access_control_bits = access;
5200 som_section_data (section)->copy_data->quadrant = quadrant;
5201 som_section_data (section)->copy_data->container = container;
5202 som_section_data (section)->copy_data->is_comdat = comdat;
5203 som_section_data (section)->copy_data->is_common = common;
5204 som_section_data (section)->copy_data->dup_common = dup_common;
5208 /* Set the full SOM symbol type. SOM needs far more symbol information
5209 than any other object file format I'm aware of. It is mandatory
5210 to be able to know if a symbol is an entry point, millicode, data,
5211 code, absolute, storage request, or procedure label. If you get
5212 the symbol type wrong your program will not link. */
5215 bfd_som_set_symbol_type (asymbol *symbol, unsigned int type)
5217 som_symbol_data (symbol)->som_type = type;
5220 /* Attach an auxiliary header to the BFD backend so that it may be
5221 written into the object file. */
5224 bfd_som_attach_aux_hdr (bfd *abfd, int type, char *string)
5228 if (type == VERSION_AUX_ID)
5230 size_t len = strlen (string);
5234 pad = (4 - (len % 4));
5235 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5236 obj_som_version_hdr (abfd) = bfd_zalloc (abfd, amt);
5237 if (!obj_som_version_hdr (abfd))
5239 obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID;
5240 obj_som_version_hdr (abfd)->header_id.length = len + pad;
5241 obj_som_version_hdr (abfd)->header_id.length += sizeof (int);
5242 obj_som_version_hdr (abfd)->string_length = len;
5243 strncpy (obj_som_version_hdr (abfd)->user_string, string, len);
5245 else if (type == COPYRIGHT_AUX_ID)
5247 int len = strlen (string);
5251 pad = (4 - (len % 4));
5252 amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad;
5253 obj_som_copyright_hdr (abfd) = bfd_zalloc (abfd, amt);
5254 if (!obj_som_copyright_hdr (abfd))
5256 obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID;
5257 obj_som_copyright_hdr (abfd)->header_id.length = len + pad;
5258 obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int);
5259 obj_som_copyright_hdr (abfd)->string_length = len;
5260 strcpy (obj_som_copyright_hdr (abfd)->copyright, string);
5265 /* Attach a compilation unit header to the BFD backend so that it may be
5266 written into the object file. */
5269 bfd_som_attach_compilation_unit (bfd *abfd,
5271 const char *language_name,
5272 const char *product_id,
5273 const char *version_id)
5275 COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ);
5283 n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \
5284 if (n->f.n_name == NULL) \
5286 strcpy (n->f.n_name, f); \
5290 STRDUP (language_name);
5291 STRDUP (product_id);
5292 STRDUP (version_id);
5296 obj_som_compilation_unit (abfd) = n;
5302 som_get_section_contents (bfd *abfd,
5306 bfd_size_type count)
5308 if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5310 if ((bfd_size_type) (offset+count) > section->size
5311 || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0
5312 || bfd_bread (location, count, abfd) != count)
5313 return FALSE; /* On error. */
5318 som_set_section_contents (bfd *abfd,
5320 const void *location,
5322 bfd_size_type count)
5324 if (! abfd->output_has_begun)
5326 /* Set up fixed parts of the file, space, and subspace headers.
5327 Notify the world that output has begun. */
5328 som_prep_headers (abfd);
5329 abfd->output_has_begun = TRUE;
5330 /* Start writing the object file. This include all the string
5331 tables, fixup streams, and other portions of the object file. */
5332 som_begin_writing (abfd);
5335 /* Only write subspaces which have "real" contents (eg. the contents
5336 are not generated at run time by the OS). */
5337 if (!som_is_subspace (section)
5338 || ((section->flags & SEC_HAS_CONTENTS) == 0))
5341 /* Seek to the proper offset within the object file and write the
5343 offset += som_section_data (section)->subspace_dict->file_loc_init_value;
5344 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
5347 if (bfd_bwrite (location, count, abfd) != count)
5353 som_set_arch_mach (bfd *abfd,
5354 enum bfd_architecture arch,
5355 unsigned long machine)
5357 /* Allow any architecture to be supported by the SOM backend. */
5358 return bfd_default_set_arch_mach (abfd, arch, machine);
5362 som_find_nearest_line (bfd *abfd,
5366 const char **filename_ptr,
5367 const char **functionname_ptr,
5368 unsigned int *line_ptr)
5375 if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset,
5376 & found, filename_ptr,
5377 functionname_ptr, line_ptr,
5378 & somdata (abfd).line_info))
5384 if (symbols == NULL)
5387 /* Fallback: find function name from symbols table. */
5391 for (p = symbols; *p != NULL; p++)
5393 som_symbol_type *q = (som_symbol_type *) *p;
5395 if (q->som_type == SYMBOL_TYPE_ENTRY
5396 && q->symbol.section == section
5397 && q->symbol.value >= low_func
5398 && q->symbol.value <= offset)
5400 func = (asymbol *) q;
5401 low_func = q->symbol.value;
5408 *filename_ptr = NULL;
5409 *functionname_ptr = bfd_asymbol_name (func);
5416 som_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED,
5417 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5419 (*_bfd_error_handler) (_("som_sizeof_headers unimplemented"));
5425 /* Return the single-character symbol type corresponding to
5426 SOM section S, or '?' for an unknown SOM section. */
5429 som_section_type (const char *s)
5431 const struct section_to_type *t;
5433 for (t = &stt[0]; t->section; t++)
5434 if (!strcmp (s, t->section))
5440 som_decode_symclass (asymbol *symbol)
5444 if (bfd_is_com_section (symbol->section))
5446 if (bfd_is_und_section (symbol->section))
5448 if (symbol->flags & BSF_WEAK)
5450 /* If weak, determine if it's specifically an object
5451 or non-object weak. */
5452 if (symbol->flags & BSF_OBJECT)
5460 if (bfd_is_ind_section (symbol->section))
5462 if (symbol->flags & BSF_WEAK)
5464 /* If weak, determine if it's specifically an object
5465 or non-object weak. */
5466 if (symbol->flags & BSF_OBJECT)
5471 if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL)))
5474 if (bfd_is_abs_section (symbol->section)
5475 || (som_symbol_data (symbol) != NULL
5476 && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE))
5478 else if (symbol->section)
5479 c = som_section_type (symbol->section->name);
5482 if (symbol->flags & BSF_GLOBAL)
5487 /* Return information about SOM symbol SYMBOL in RET. */
5490 som_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED,
5494 ret->type = som_decode_symclass (symbol);
5495 if (ret->type != 'U')
5496 ret->value = symbol->value + symbol->section->vma;
5499 ret->name = symbol->name;
5502 /* Count the number of symbols in the archive symbol table. Necessary
5503 so that we can allocate space for all the carsyms at once. */
5506 som_bfd_count_ar_symbols (bfd *abfd,
5507 struct lst_header *lst_header,
5511 unsigned int *hash_table = NULL;
5513 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5515 amt = lst_header->hash_size;
5516 amt *= sizeof (unsigned int);
5517 hash_table = bfd_malloc (amt);
5518 if (hash_table == NULL && lst_header->hash_size != 0)
5521 /* Don't forget to initialize the counter! */
5524 /* Read in the hash table. The has table is an array of 32bit file offsets
5525 which point to the hash chains. */
5526 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5529 /* Walk each chain counting the number of symbols found on that particular
5531 for (i = 0; i < lst_header->hash_size; i++)
5533 struct lst_symbol_record lst_symbol;
5535 /* An empty chain has zero as it's file offset. */
5536 if (hash_table[i] == 0)
5539 /* Seek to the first symbol in this hash chain. */
5540 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5543 /* Read in this symbol and update the counter. */
5544 amt = sizeof (lst_symbol);
5545 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5550 /* Now iterate through the rest of the symbols on this chain. */
5551 while (lst_symbol.next_entry)
5554 /* Seek to the next symbol. */
5555 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5559 /* Read the symbol in and update the counter. */
5560 amt = sizeof (lst_symbol);
5561 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5567 if (hash_table != NULL)
5572 if (hash_table != NULL)
5577 /* Fill in the canonical archive symbols (SYMS) from the archive described
5578 by ABFD and LST_HEADER. */
5581 som_bfd_fill_in_ar_symbols (bfd *abfd,
5582 struct lst_header *lst_header,
5585 unsigned int i, len;
5586 carsym *set = syms[0];
5587 unsigned int *hash_table = NULL;
5588 struct som_entry *som_dict = NULL;
5590 file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5592 amt = lst_header->hash_size;
5593 amt *= sizeof (unsigned int);
5594 hash_table = bfd_malloc (amt);
5595 if (hash_table == NULL && lst_header->hash_size != 0)
5598 /* Read in the hash table. The has table is an array of 32bit file offsets
5599 which point to the hash chains. */
5600 if (bfd_bread ((void *) hash_table, amt, abfd) != amt)
5603 /* Seek to and read in the SOM dictionary. We will need this to fill
5604 in the carsym's filepos field. */
5605 if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0)
5608 amt = lst_header->module_count;
5609 amt *= sizeof (struct som_entry);
5610 som_dict = bfd_malloc (amt);
5611 if (som_dict == NULL && lst_header->module_count != 0)
5614 if (bfd_bread ((void *) som_dict, amt, abfd) != amt)
5617 /* Walk each chain filling in the carsyms as we go along. */
5618 for (i = 0; i < lst_header->hash_size; i++)
5620 struct lst_symbol_record lst_symbol;
5622 /* An empty chain has zero as it's file offset. */
5623 if (hash_table[i] == 0)
5626 /* Seek to and read the first symbol on the chain. */
5627 if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0)
5630 amt = sizeof (lst_symbol);
5631 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5634 /* Get the name of the symbol, first get the length which is stored
5635 as a 32bit integer just before the symbol.
5637 One might ask why we don't just read in the entire string table
5638 and index into it. Well, according to the SOM ABI the string
5639 index can point *anywhere* in the archive to save space, so just
5640 using the string table would not be safe. */
5641 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5642 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5645 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5648 /* Allocate space for the name and null terminate it too. */
5649 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5652 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5657 /* Fill in the file offset. Note that the "location" field points
5658 to the SOM itself, not the ar_hdr in front of it. */
5659 set->file_offset = som_dict[lst_symbol.som_index].location
5660 - sizeof (struct ar_hdr);
5662 /* Go to the next symbol. */
5665 /* Iterate through the rest of the chain. */
5666 while (lst_symbol.next_entry)
5668 /* Seek to the next symbol and read it in. */
5669 if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET)
5673 amt = sizeof (lst_symbol);
5674 if (bfd_bread ((void *) &lst_symbol, amt, abfd) != amt)
5677 /* Seek to the name length & string and read them in. */
5678 if (bfd_seek (abfd, lst_filepos + lst_header->string_loc
5679 + lst_symbol.name.n_strx - 4, SEEK_SET) != 0)
5682 if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4)
5685 /* Allocate space for the name and null terminate it too. */
5686 set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1);
5690 if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len)
5694 /* Fill in the file offset. Note that the "location" field points
5695 to the SOM itself, not the ar_hdr in front of it. */
5696 set->file_offset = som_dict[lst_symbol.som_index].location
5697 - sizeof (struct ar_hdr);
5699 /* Go on to the next symbol. */
5703 /* If we haven't died by now, then we successfully read the entire
5704 archive symbol table. */
5705 if (hash_table != NULL)
5707 if (som_dict != NULL)
5712 if (hash_table != NULL)
5714 if (som_dict != NULL)
5719 /* Read in the LST from the archive. */
5722 som_slurp_armap (bfd *abfd)
5724 struct lst_header lst_header;
5725 struct ar_hdr ar_header;
5726 unsigned int parsed_size;
5727 struct artdata *ardata = bfd_ardata (abfd);
5729 bfd_size_type amt = 16;
5730 int i = bfd_bread ((void *) nextname, amt, abfd);
5732 /* Special cases. */
5738 if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0)
5741 /* For archives without .o files there is no symbol table. */
5742 if (! CONST_STRNEQ (nextname, "/ "))
5744 bfd_has_map (abfd) = FALSE;
5748 /* Read in and sanity check the archive header. */
5749 amt = sizeof (struct ar_hdr);
5750 if (bfd_bread ((void *) &ar_header, amt, abfd) != amt)
5753 if (strncmp (ar_header.ar_fmag, ARFMAG, 2))
5755 bfd_set_error (bfd_error_malformed_archive);
5759 /* How big is the archive symbol table entry? */
5761 parsed_size = strtol (ar_header.ar_size, NULL, 10);
5764 bfd_set_error (bfd_error_malformed_archive);
5768 /* Save off the file offset of the first real user data. */
5769 ardata->first_file_filepos = bfd_tell (abfd) + parsed_size;
5771 /* Read in the library symbol table. We'll make heavy use of this
5772 in just a minute. */
5773 amt = sizeof (struct lst_header);
5774 if (bfd_bread ((void *) &lst_header, amt, abfd) != amt)
5778 if (lst_header.a_magic != LIBMAGIC)
5780 bfd_set_error (bfd_error_malformed_archive);
5784 /* Count the number of symbols in the library symbol table. */
5785 if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count))
5788 /* Get back to the start of the library symbol table. */
5789 if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size
5790 + sizeof (struct lst_header)), SEEK_SET) != 0)
5793 /* Initialize the cache and allocate space for the library symbols. */
5795 amt = ardata->symdef_count;
5796 amt *= sizeof (carsym);
5797 ardata->symdefs = bfd_alloc (abfd, amt);
5798 if (!ardata->symdefs)
5801 /* Now fill in the canonical archive symbols. */
5802 if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs))
5805 /* Seek back to the "first" file in the archive. Note the "first"
5806 file may be the extended name table. */
5807 if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0)
5810 /* Notify the generic archive code that we have a symbol map. */
5811 bfd_has_map (abfd) = TRUE;
5815 /* Begin preparing to write a SOM library symbol table.
5817 As part of the prep work we need to determine the number of symbols
5818 and the size of the associated string section. */
5821 som_bfd_prep_for_ar_write (bfd *abfd,
5822 unsigned int *num_syms,
5823 unsigned int *stringsize)
5825 bfd *curr_bfd = abfd->archive_head;
5827 /* Some initialization. */
5831 /* Iterate over each BFD within this archive. */
5832 while (curr_bfd != NULL)
5834 unsigned int curr_count, i;
5835 som_symbol_type *sym;
5837 /* Don't bother for non-SOM objects. */
5838 if (curr_bfd->format != bfd_object
5839 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5841 curr_bfd = curr_bfd->archive_next;
5845 /* Make sure the symbol table has been read, then snag a pointer
5846 to it. It's a little slimey to grab the symbols via obj_som_symtab,
5847 but doing so avoids allocating lots of extra memory. */
5848 if (! som_slurp_symbol_table (curr_bfd))
5851 sym = obj_som_symtab (curr_bfd);
5852 curr_count = bfd_get_symcount (curr_bfd);
5854 /* Examine each symbol to determine if it belongs in the
5855 library symbol table. */
5856 for (i = 0; i < curr_count; i++, sym++)
5858 struct som_misc_symbol_info info;
5860 /* Derive SOM information from the BFD symbol. */
5861 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
5863 /* Should we include this symbol? */
5864 if (info.symbol_type == ST_NULL
5865 || info.symbol_type == ST_SYM_EXT
5866 || info.symbol_type == ST_ARG_EXT)
5869 /* Only global symbols and unsatisfied commons. */
5870 if (info.symbol_scope != SS_UNIVERSAL
5871 && info.symbol_type != ST_STORAGE)
5874 /* Do no include undefined symbols. */
5875 if (bfd_is_und_section (sym->symbol.section))
5878 /* Bump the various counters, being careful to honor
5879 alignment considerations in the string table. */
5881 *stringsize = *stringsize + strlen (sym->symbol.name) + 5;
5882 while (*stringsize % 4)
5886 curr_bfd = curr_bfd->archive_next;
5891 /* Hash a symbol name based on the hashing algorithm presented in the
5895 som_bfd_ar_symbol_hash (asymbol *symbol)
5897 unsigned int len = strlen (symbol->name);
5899 /* Names with length 1 are special. */
5901 return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0];
5903 return ((len & 0x7f) << 24) | (symbol->name[1] << 16)
5904 | (symbol->name[len - 2] << 8) | symbol->name[len - 1];
5907 /* Do the bulk of the work required to write the SOM library
5911 som_bfd_ar_write_symbol_stuff (bfd *abfd,
5913 unsigned int string_size,
5914 struct lst_header lst,
5917 file_ptr lst_filepos;
5918 char *strings = NULL, *p;
5919 struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym;
5921 unsigned int *hash_table = NULL;
5922 struct som_entry *som_dict = NULL;
5923 struct lst_symbol_record **last_hash_entry = NULL;
5924 unsigned int curr_som_offset, som_index = 0;
5927 amt = lst.hash_size;
5928 amt *= sizeof (unsigned int);
5929 hash_table = bfd_zmalloc (amt);
5930 if (hash_table == NULL && lst.hash_size != 0)
5933 amt = lst.module_count;
5934 amt *= sizeof (struct som_entry);
5935 som_dict = bfd_zmalloc (amt);
5936 if (som_dict == NULL && lst.module_count != 0)
5939 amt = lst.hash_size;
5940 amt *= sizeof (struct lst_symbol_record *);
5941 last_hash_entry = bfd_zmalloc (amt);
5942 if (last_hash_entry == NULL && lst.hash_size != 0)
5945 /* Lots of fields are file positions relative to the start
5946 of the lst record. So save its location. */
5947 lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header);
5949 /* Symbols have som_index fields, so we have to keep track of the
5950 index of each SOM in the archive.
5952 The SOM dictionary has (among other things) the absolute file
5953 position for the SOM which a particular dictionary entry
5954 describes. We have to compute that information as we iterate
5955 through the SOMs/symbols. */
5958 /* We add in the size of the archive header twice as the location
5959 in the SOM dictionary is the actual offset of the SOM, not the
5960 archive header before the SOM. */
5961 curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end;
5963 /* Make room for the archive header and the contents of the
5964 extended string table. Note that elength includes the size
5965 of the archive header for the extended name table! */
5967 curr_som_offset += elength;
5969 /* Make sure we're properly aligned. */
5970 curr_som_offset = (curr_som_offset + 0x1) & ~0x1;
5972 /* FIXME should be done with buffers just like everything else... */
5974 amt *= sizeof (struct lst_symbol_record);
5975 lst_syms = bfd_malloc (amt);
5976 if (lst_syms == NULL && nsyms != 0)
5978 strings = bfd_malloc ((bfd_size_type) string_size);
5979 if (strings == NULL && string_size != 0)
5983 curr_lst_sym = lst_syms;
5985 curr_bfd = abfd->archive_head;
5986 while (curr_bfd != NULL)
5988 unsigned int curr_count, i;
5989 som_symbol_type *sym;
5991 /* Don't bother for non-SOM objects. */
5992 if (curr_bfd->format != bfd_object
5993 || curr_bfd->xvec->flavour != bfd_target_som_flavour)
5995 curr_bfd = curr_bfd->archive_next;
5999 /* Make sure the symbol table has been read, then snag a pointer
6000 to it. It's a little slimey to grab the symbols via obj_som_symtab,
6001 but doing so avoids allocating lots of extra memory. */
6002 if (! som_slurp_symbol_table (curr_bfd))
6005 sym = obj_som_symtab (curr_bfd);
6006 curr_count = bfd_get_symcount (curr_bfd);
6008 for (i = 0; i < curr_count; i++, sym++)
6010 struct som_misc_symbol_info info;
6012 /* Derive SOM information from the BFD symbol. */
6013 som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info);
6015 /* Should we include this symbol? */
6016 if (info.symbol_type == ST_NULL
6017 || info.symbol_type == ST_SYM_EXT
6018 || info.symbol_type == ST_ARG_EXT)
6021 /* Only global symbols and unsatisfied commons. */
6022 if (info.symbol_scope != SS_UNIVERSAL
6023 && info.symbol_type != ST_STORAGE)
6026 /* Do no include undefined symbols. */
6027 if (bfd_is_und_section (sym->symbol.section))
6030 /* If this is the first symbol from this SOM, then update
6031 the SOM dictionary too. */
6032 if (som_dict[som_index].location == 0)
6034 som_dict[som_index].location = curr_som_offset;
6035 som_dict[som_index].length = arelt_size (curr_bfd);
6038 /* Fill in the lst symbol record. */
6039 curr_lst_sym->hidden = 0;
6040 curr_lst_sym->secondary_def = info.secondary_def;
6041 curr_lst_sym->symbol_type = info.symbol_type;
6042 curr_lst_sym->symbol_scope = info.symbol_scope;
6043 curr_lst_sym->check_level = 0;
6044 curr_lst_sym->must_qualify = 0;
6045 curr_lst_sym->initially_frozen = 0;
6046 curr_lst_sym->memory_resident = 0;
6047 curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section);
6048 curr_lst_sym->dup_common = info.dup_common;
6049 curr_lst_sym->xleast = 3;
6050 curr_lst_sym->arg_reloc = info.arg_reloc;
6051 curr_lst_sym->name.n_strx = p - strings + 4;
6052 curr_lst_sym->qualifier_name.n_strx = 0;
6053 curr_lst_sym->symbol_info = info.symbol_info;
6054 curr_lst_sym->symbol_value = info.symbol_value | info.priv_level;
6055 curr_lst_sym->symbol_descriptor = 0;
6056 curr_lst_sym->reserved = 0;
6057 curr_lst_sym->som_index = som_index;
6058 curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol);
6059 curr_lst_sym->next_entry = 0;
6061 /* Insert into the hash table. */
6062 if (hash_table[curr_lst_sym->symbol_key % lst.hash_size])
6064 struct lst_symbol_record *tmp;
6066 /* There is already something at the head of this hash chain,
6067 so tack this symbol onto the end of the chain. */
6068 tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size];
6070 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6072 + lst.module_count * sizeof (struct som_entry)
6073 + sizeof (struct lst_header);
6076 /* First entry in this hash chain. */
6077 hash_table[curr_lst_sym->symbol_key % lst.hash_size]
6078 = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record)
6080 + lst.module_count * sizeof (struct som_entry)
6081 + sizeof (struct lst_header);
6083 /* Keep track of the last symbol we added to this chain so we can
6084 easily update its next_entry pointer. */
6085 last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]
6088 /* Update the string table. */
6089 bfd_put_32 (abfd, strlen (sym->symbol.name), p);
6091 strcpy (p, sym->symbol.name);
6092 p += strlen (sym->symbol.name) + 1;
6095 bfd_put_8 (abfd, 0, p);
6099 /* Head to the next symbol. */
6103 /* Keep track of where each SOM will finally reside; then look
6105 curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr);
6107 /* A particular object in the archive may have an odd length; the
6108 linker requires objects begin on an even boundary. So round
6109 up the current offset as necessary. */
6110 curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1;
6111 curr_bfd = curr_bfd->archive_next;
6115 /* Now scribble out the hash table. */
6116 amt = lst.hash_size * 4;
6117 if (bfd_bwrite ((void *) hash_table, amt, abfd) != amt)
6120 /* Then the SOM dictionary. */
6121 amt = lst.module_count * sizeof (struct som_entry);
6122 if (bfd_bwrite ((void *) som_dict, amt, abfd) != amt)
6125 /* The library symbols. */
6126 amt = nsyms * sizeof (struct lst_symbol_record);
6127 if (bfd_bwrite ((void *) lst_syms, amt, abfd) != amt)
6130 /* And finally the strings. */
6132 if (bfd_bwrite ((void *) strings, amt, abfd) != amt)
6135 if (hash_table != NULL)
6137 if (som_dict != NULL)
6139 if (last_hash_entry != NULL)
6140 free (last_hash_entry);
6141 if (lst_syms != NULL)
6143 if (strings != NULL)
6148 if (hash_table != NULL)
6150 if (som_dict != NULL)
6152 if (last_hash_entry != NULL)
6153 free (last_hash_entry);
6154 if (lst_syms != NULL)
6156 if (strings != NULL)
6162 /* Write out the LST for the archive.
6164 You'll never believe this is really how armaps are handled in SOM... */
6167 som_write_armap (bfd *abfd,
6168 unsigned int elength,
6169 struct orl *map ATTRIBUTE_UNUSED,
6170 unsigned int orl_count ATTRIBUTE_UNUSED,
6171 int stridx ATTRIBUTE_UNUSED)
6174 struct stat statbuf;
6175 unsigned int i, lst_size, nsyms, stringsize;
6177 struct lst_header lst;
6181 /* We'll use this for the archive's date and mode later. */
6182 if (stat (abfd->filename, &statbuf) != 0)
6184 bfd_set_error (bfd_error_system_call);
6188 bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60;
6190 /* Account for the lst header first. */
6191 lst_size = sizeof (struct lst_header);
6193 /* Start building the LST header. */
6194 /* FIXME: Do we need to examine each element to determine the
6195 largest id number? */
6196 lst.system_id = CPU_PA_RISC1_0;
6197 lst.a_magic = LIBMAGIC;
6198 lst.version_id = VERSION_ID;
6199 lst.file_time.secs = 0;
6200 lst.file_time.nanosecs = 0;
6202 lst.hash_loc = lst_size;
6203 lst.hash_size = SOM_LST_HASH_SIZE;
6205 /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */
6206 lst_size += 4 * SOM_LST_HASH_SIZE;
6208 /* We need to count the number of SOMs in this archive. */
6209 curr_bfd = abfd->archive_head;
6210 lst.module_count = 0;
6211 while (curr_bfd != NULL)
6213 /* Only true SOM objects count. */
6214 if (curr_bfd->format == bfd_object
6215 && curr_bfd->xvec->flavour == bfd_target_som_flavour)
6217 curr_bfd = curr_bfd->archive_next;
6219 lst.module_limit = lst.module_count;
6220 lst.dir_loc = lst_size;
6221 lst_size += sizeof (struct som_entry) * lst.module_count;
6223 /* We don't support import/export tables, auxiliary headers,
6224 or free lists yet. Make the linker work a little harder
6225 to make our life easier. */
6228 lst.export_count = 0;
6233 /* Count how many symbols we will have on the hash chains and the
6234 size of the associated string table. */
6235 if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize))
6238 lst_size += sizeof (struct lst_symbol_record) * nsyms;
6240 /* For the string table. One day we might actually use this info
6241 to avoid small seeks/reads when reading archives. */
6242 lst.string_loc = lst_size;
6243 lst.string_size = stringsize;
6244 lst_size += stringsize;
6246 /* SOM ABI says this must be zero. */
6248 lst.file_end = lst_size;
6250 /* Compute the checksum. Must happen after the entire lst header
6254 for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++)
6255 lst.checksum ^= *p++;
6257 sprintf (hdr.ar_name, "/ ");
6258 sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp);
6259 sprintf (hdr.ar_uid, "%ld", (long) getuid ());
6260 sprintf (hdr.ar_gid, "%ld", (long) getgid ());
6261 sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode);
6262 sprintf (hdr.ar_size, "%-10d", (int) lst_size);
6263 hdr.ar_fmag[0] = '`';
6264 hdr.ar_fmag[1] = '\012';
6266 /* Turn any nulls into spaces. */
6267 for (i = 0; i < sizeof (struct ar_hdr); i++)
6268 if (((char *) (&hdr))[i] == '\0')
6269 (((char *) (&hdr))[i]) = ' ';
6271 /* Scribble out the ar header. */
6272 amt = sizeof (struct ar_hdr);
6273 if (bfd_bwrite ((void *) &hdr, amt, abfd) != amt)
6276 /* Now scribble out the lst header. */
6277 amt = sizeof (struct lst_header);
6278 if (bfd_bwrite ((void *) &lst, amt, abfd) != amt)
6281 /* Build and write the armap. */
6282 if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength))
6289 /* Free all information we have cached for this BFD. We can always
6290 read it again later if we need it. */
6293 som_bfd_free_cached_info (bfd *abfd)
6297 if (bfd_get_format (abfd) != bfd_object)
6300 #define FREE(x) if (x != NULL) { free (x); x = NULL; }
6301 /* Free the native string and symbol tables. */
6302 FREE (obj_som_symtab (abfd));
6303 FREE (obj_som_stringtab (abfd));
6304 for (o = abfd->sections; o != NULL; o = o->next)
6306 /* Free the native relocations. */
6307 o->reloc_count = (unsigned) -1;
6308 FREE (som_section_data (o)->reloc_stream);
6309 /* Free the generic relocations. */
6310 FREE (o->relocation);
6317 /* End of miscellaneous support functions. */
6319 /* Linker support functions. */
6322 som_bfd_link_split_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
6324 return som_is_subspace (sec) && sec->size > 240000;
6327 #define som_close_and_cleanup som_bfd_free_cached_info
6328 #define som_read_ar_hdr _bfd_generic_read_ar_hdr
6329 #define som_openr_next_archived_file bfd_generic_openr_next_archived_file
6330 #define som_get_elt_at_index _bfd_generic_get_elt_at_index
6331 #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt
6332 #define som_truncate_arname bfd_bsd_truncate_arname
6333 #define som_slurp_extended_name_table _bfd_slurp_extended_name_table
6334 #define som_construct_extended_name_table _bfd_archive_coff_construct_extended_name_table
6335 #define som_update_armap_timestamp bfd_true
6336 #define som_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
6337 #define som_get_lineno _bfd_nosymbols_get_lineno
6338 #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
6339 #define som_read_minisymbols _bfd_generic_read_minisymbols
6340 #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
6341 #define som_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
6342 #define som_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
6343 #define som_bfd_relax_section bfd_generic_relax_section
6344 #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
6345 #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
6346 #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols
6347 #define som_bfd_link_just_syms _bfd_generic_link_just_syms
6348 #define som_bfd_final_link _bfd_generic_final_link
6349 #define som_bfd_gc_sections bfd_generic_gc_sections
6350 #define som_bfd_merge_sections bfd_generic_merge_sections
6351 #define som_bfd_is_group_section bfd_generic_is_group_section
6352 #define som_bfd_discard_group bfd_generic_discard_group
6353 #define som_section_already_linked _bfd_generic_section_already_linked
6354 #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
6355 #define som_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
6356 #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
6357 #define som_find_inliner_info _bfd_nosymbols_find_inliner_info
6359 const bfd_target som_vec =
6362 bfd_target_som_flavour,
6363 BFD_ENDIAN_BIG, /* Target byte order. */
6364 BFD_ENDIAN_BIG, /* Target headers byte order. */
6365 (HAS_RELOC | EXEC_P | /* Object flags. */
6366 HAS_LINENO | HAS_DEBUG |
6367 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
6368 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE
6369 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
6371 /* Leading_symbol_char: is the first char of a user symbol
6372 predictable, and if so what is it. */
6374 '/', /* AR_pad_char. */
6375 14, /* AR_max_namelen. */
6376 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6377 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6378 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
6379 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
6380 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
6381 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Headers. */
6383 som_object_p, /* bfd_check_format. */
6384 bfd_generic_archive_p,
6390 _bfd_generic_mkarchive,
6395 som_write_object_contents,
6396 _bfd_write_archive_contents,
6401 BFD_JUMP_TABLE_GENERIC (som),
6402 BFD_JUMP_TABLE_COPY (som),
6403 BFD_JUMP_TABLE_CORE (_bfd_nocore),
6404 BFD_JUMP_TABLE_ARCHIVE (som),
6405 BFD_JUMP_TABLE_SYMBOLS (som),
6406 BFD_JUMP_TABLE_RELOCS (som),
6407 BFD_JUMP_TABLE_WRITE (som),
6408 BFD_JUMP_TABLE_LINK (som),
6409 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
6416 #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */