Commit | Line | Data |
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252b5132 | 1 | /* bfd back-end for HP PA-RISC SOM objects. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
ad7b9a36 | 3 | 2000, 2001, 2002, 2003, 2004 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | Contributed by the Center for Software Science at the | |
8681fbcd | 7 | University of Utah. |
252b5132 RH |
8 | |
9 | This file is part of BFD, the Binary File Descriptor library. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
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. | |
20 | ||
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., 59 Temple Place - Suite 330, Boston, MA | |
24 | 02111-1307, USA. */ | |
25 | ||
6204760d | 26 | #include "alloca-conf.h" |
252b5132 RH |
27 | #include "bfd.h" |
28 | #include "sysdep.h" | |
29 | ||
30 | #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) || defined(HOST_HPPAMPEIX) | |
31 | ||
32 | #include "libbfd.h" | |
33 | #include "som.h" | |
3882b010 | 34 | #include "safe-ctype.h" |
252b5132 RH |
35 | |
36 | #include <sys/param.h> | |
37 | #include <signal.h> | |
38 | #include <machine/reg.h> | |
39 | #include <sys/file.h> | |
252b5132 | 40 | |
34f304a7 | 41 | /* Magic not defined in standard HP-UX header files until 8.0. */ |
252b5132 RH |
42 | |
43 | #ifndef CPU_PA_RISC1_0 | |
44 | #define CPU_PA_RISC1_0 0x20B | |
45 | #endif /* CPU_PA_RISC1_0 */ | |
46 | ||
47 | #ifndef CPU_PA_RISC1_1 | |
48 | #define CPU_PA_RISC1_1 0x210 | |
49 | #endif /* CPU_PA_RISC1_1 */ | |
50 | ||
51 | #ifndef CPU_PA_RISC2_0 | |
52 | #define CPU_PA_RISC2_0 0x214 | |
53 | #endif /* CPU_PA_RISC2_0 */ | |
54 | ||
55 | #ifndef _PA_RISC1_0_ID | |
56 | #define _PA_RISC1_0_ID CPU_PA_RISC1_0 | |
57 | #endif /* _PA_RISC1_0_ID */ | |
58 | ||
59 | #ifndef _PA_RISC1_1_ID | |
60 | #define _PA_RISC1_1_ID CPU_PA_RISC1_1 | |
61 | #endif /* _PA_RISC1_1_ID */ | |
62 | ||
63 | #ifndef _PA_RISC2_0_ID | |
64 | #define _PA_RISC2_0_ID CPU_PA_RISC2_0 | |
65 | #endif /* _PA_RISC2_0_ID */ | |
66 | ||
67 | #ifndef _PA_RISC_MAXID | |
68 | #define _PA_RISC_MAXID 0x2FF | |
69 | #endif /* _PA_RISC_MAXID */ | |
70 | ||
71 | #ifndef _PA_RISC_ID | |
72 | #define _PA_RISC_ID(__m_num) \ | |
73 | (((__m_num) == _PA_RISC1_0_ID) || \ | |
74 | ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID)) | |
75 | #endif /* _PA_RISC_ID */ | |
76 | ||
252b5132 RH |
77 | /* HIUX in it's infinite stupidity changed the names for several "well |
78 | known" constants. Work around such braindamage. Try the HPUX version | |
79 | first, then the HIUX version, and finally provide a default. */ | |
80 | #ifdef HPUX_AUX_ID | |
81 | #define EXEC_AUX_ID HPUX_AUX_ID | |
82 | #endif | |
83 | ||
84 | #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID) | |
85 | #define EXEC_AUX_ID HIUX_AUX_ID | |
86 | #endif | |
87 | ||
88 | #ifndef EXEC_AUX_ID | |
89 | #define EXEC_AUX_ID 0 | |
90 | #endif | |
91 | ||
92 | /* Size (in chars) of the temporary buffers used during fixup and string | |
93 | table writes. */ | |
6fa957a9 | 94 | |
252b5132 RH |
95 | #define SOM_TMP_BUFSIZE 8192 |
96 | ||
97 | /* Size of the hash table in archives. */ | |
98 | #define SOM_LST_HASH_SIZE 31 | |
99 | ||
100 | /* Max number of SOMs to be found in an archive. */ | |
101 | #define SOM_LST_MODULE_LIMIT 1024 | |
102 | ||
103 | /* Generic alignment macro. */ | |
104 | #define SOM_ALIGN(val, alignment) \ | |
dc810e39 | 105 | (((val) + (alignment) - 1) &~ ((unsigned long) (alignment) - 1)) |
252b5132 RH |
106 | |
107 | /* SOM allows any one of the four previous relocations to be reused | |
108 | with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP | |
109 | relocations are always a single byte, using a R_PREV_FIXUP instead | |
6fa957a9 | 110 | of some multi-byte relocation makes object files smaller. |
252b5132 RH |
111 | |
112 | Note one side effect of using a R_PREV_FIXUP is the relocation that | |
113 | is being repeated moves to the front of the queue. */ | |
7eae7d22 KH |
114 | struct reloc_queue { |
115 | unsigned char *reloc; | |
116 | unsigned int size; | |
117 | } reloc_queue[4]; | |
252b5132 RH |
118 | |
119 | /* This fully describes the symbol types which may be attached to | |
120 | an EXPORT or IMPORT directive. Only SOM uses this formation | |
121 | (ELF has no need for it). */ | |
7eae7d22 | 122 | typedef enum { |
252b5132 RH |
123 | SYMBOL_TYPE_UNKNOWN, |
124 | SYMBOL_TYPE_ABSOLUTE, | |
125 | SYMBOL_TYPE_CODE, | |
126 | SYMBOL_TYPE_DATA, | |
127 | SYMBOL_TYPE_ENTRY, | |
128 | SYMBOL_TYPE_MILLICODE, | |
129 | SYMBOL_TYPE_PLABEL, | |
130 | SYMBOL_TYPE_PRI_PROG, | |
131 | SYMBOL_TYPE_SEC_PROG, | |
132 | } pa_symbol_type; | |
133 | ||
7eae7d22 | 134 | struct section_to_type { |
252b5132 RH |
135 | char *section; |
136 | char type; | |
137 | }; | |
138 | ||
139 | /* Assorted symbol information that needs to be derived from the BFD symbol | |
140 | and/or the BFD backend private symbol data. */ | |
7eae7d22 | 141 | struct som_misc_symbol_info { |
252b5132 RH |
142 | unsigned int symbol_type; |
143 | unsigned int symbol_scope; | |
144 | unsigned int arg_reloc; | |
145 | unsigned int symbol_info; | |
146 | unsigned int symbol_value; | |
147 | unsigned int priv_level; | |
ba20314e | 148 | unsigned int secondary_def; |
351e2b5a DA |
149 | unsigned int is_comdat; |
150 | unsigned int is_common; | |
151 | unsigned int dup_common; | |
252b5132 RH |
152 | }; |
153 | ||
34f304a7 | 154 | /* Forward declarations. */ |
252b5132 | 155 | |
b34976b6 AM |
156 | static bfd_boolean som_mkobject |
157 | PARAMS ((bfd *)); | |
158 | static const bfd_target * som_object_setup | |
159 | PARAMS ((bfd *, struct header *, struct som_exec_auxhdr *, unsigned long)); | |
160 | static bfd_boolean setup_sections | |
161 | PARAMS ((bfd *, struct header *, unsigned long)); | |
162 | static const bfd_target * som_object_p | |
163 | PARAMS ((bfd *)); | |
164 | static bfd_boolean som_write_object_contents | |
165 | PARAMS ((bfd *)); | |
166 | static bfd_boolean som_slurp_string_table | |
167 | PARAMS ((bfd *)); | |
168 | static unsigned int som_slurp_symbol_table | |
169 | PARAMS ((bfd *)); | |
170 | static long som_get_symtab_upper_bound | |
171 | PARAMS ((bfd *)); | |
172 | static long som_canonicalize_reloc | |
173 | PARAMS ((bfd *, sec_ptr, arelent **, asymbol **)); | |
174 | static long som_get_reloc_upper_bound | |
175 | PARAMS ((bfd *, sec_ptr)); | |
176 | static unsigned int som_set_reloc_info | |
177 | PARAMS ((unsigned char *, unsigned int, arelent *, asection *, | |
178 | asymbol **, bfd_boolean)); | |
179 | static bfd_boolean som_slurp_reloc_table | |
180 | PARAMS ((bfd *, asection *, asymbol **, bfd_boolean)); | |
6cee3f79 | 181 | static long som_canonicalize_symtab |
b34976b6 AM |
182 | PARAMS ((bfd *, asymbol **)); |
183 | static asymbol * som_make_empty_symbol | |
184 | PARAMS ((bfd *)); | |
185 | static void som_print_symbol | |
186 | PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type)); | |
187 | static bfd_boolean som_new_section_hook | |
188 | PARAMS ((bfd *, asection *)); | |
189 | static bfd_boolean som_bfd_copy_private_symbol_data | |
190 | PARAMS ((bfd *, asymbol *, bfd *, asymbol *)); | |
191 | static bfd_boolean som_bfd_copy_private_section_data | |
192 | PARAMS ((bfd *, asection *, bfd *, asection *)); | |
193 | static bfd_boolean som_bfd_copy_private_bfd_data | |
194 | PARAMS ((bfd *, bfd *)); | |
80fccad2 BW |
195 | #define som_bfd_copy_private_header_data \ |
196 | _bfd_generic_bfd_copy_private_header_data | |
252b5132 RH |
197 | #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
198 | #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
b34976b6 AM |
199 | static bfd_boolean som_bfd_is_local_label_name |
200 | PARAMS ((bfd *, const char *)); | |
201 | static bfd_boolean som_set_section_contents | |
5198ba8b | 202 | PARAMS ((bfd *, sec_ptr, const PTR, file_ptr, bfd_size_type)); |
b34976b6 AM |
203 | static bfd_boolean som_get_section_contents |
204 | PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type)); | |
205 | static bfd_boolean som_set_arch_mach | |
206 | PARAMS ((bfd *, enum bfd_architecture, unsigned long)); | |
207 | static bfd_boolean som_find_nearest_line | |
208 | PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **, | |
209 | const char **, unsigned int *)); | |
210 | static void som_get_symbol_info | |
211 | PARAMS ((bfd *, asymbol *, symbol_info *)); | |
212 | static asection * bfd_section_from_som_symbol | |
213 | PARAMS ((bfd *, struct symbol_dictionary_record *)); | |
a99cf92b | 214 | static int exact_log2 |
b34976b6 AM |
215 | PARAMS ((unsigned int)); |
216 | static bfd_reloc_status_type hppa_som_reloc | |
217 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
218 | static void som_initialize_reloc_queue | |
219 | PARAMS ((struct reloc_queue *)); | |
220 | static void som_reloc_queue_insert | |
221 | PARAMS ((unsigned char *, unsigned int, struct reloc_queue *)); | |
222 | static void som_reloc_queue_fix | |
223 | PARAMS ((struct reloc_queue *, unsigned int)); | |
224 | static int som_reloc_queue_find | |
225 | PARAMS ((unsigned char *, unsigned int, struct reloc_queue *)); | |
226 | static unsigned char * try_prev_fixup | |
227 | PARAMS ((bfd *, int *, unsigned char *, unsigned int, struct reloc_queue *)); | |
b34976b6 AM |
228 | static unsigned char * som_reloc_skip |
229 | PARAMS ((bfd *, unsigned int, unsigned char *, unsigned int *, | |
230 | struct reloc_queue *)); | |
231 | static unsigned char * som_reloc_addend | |
232 | PARAMS ((bfd *, bfd_vma, unsigned char *, unsigned int *, | |
233 | struct reloc_queue *)); | |
234 | static unsigned char * som_reloc_call | |
235 | PARAMS ((bfd *, unsigned char *, unsigned int *, arelent *, int, | |
236 | struct reloc_queue *)); | |
237 | static unsigned long som_count_spaces | |
238 | PARAMS ((bfd *)); | |
239 | static unsigned long som_count_subspaces | |
240 | PARAMS ((bfd *)); | |
241 | static int compare_syms | |
242 | PARAMS ((const void *, const void *)); | |
243 | static int compare_subspaces | |
244 | PARAMS ((const void *, const void *)); | |
245 | static unsigned long som_compute_checksum | |
246 | PARAMS ((bfd *)); | |
247 | static bfd_boolean som_prep_headers | |
248 | PARAMS ((bfd *)); | |
249 | static int som_sizeof_headers | |
250 | PARAMS ((bfd *, bfd_boolean)); | |
251 | static bfd_boolean som_finish_writing | |
252 | PARAMS ((bfd *)); | |
253 | static bfd_boolean som_build_and_write_symbol_table | |
254 | PARAMS ((bfd *)); | |
255 | static void som_prep_for_fixups | |
256 | PARAMS ((bfd *, asymbol **, unsigned long)); | |
257 | static bfd_boolean som_write_fixups | |
258 | PARAMS ((bfd *, unsigned long, unsigned int *)); | |
259 | static bfd_boolean som_write_space_strings | |
260 | PARAMS ((bfd *, unsigned long, unsigned int *)); | |
261 | static bfd_boolean som_write_symbol_strings | |
262 | PARAMS ((bfd *, unsigned long, asymbol **, unsigned int, unsigned *, | |
263 | COMPUNIT *)); | |
264 | static bfd_boolean som_begin_writing | |
265 | PARAMS ((bfd *)); | |
252b5132 | 266 | static reloc_howto_type * som_bfd_reloc_type_lookup |
b34976b6 AM |
267 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
268 | static char som_section_type | |
269 | PARAMS ((const char *)); | |
270 | static int som_decode_symclass | |
271 | PARAMS ((asymbol *)); | |
272 | static bfd_boolean som_bfd_count_ar_symbols | |
273 | PARAMS ((bfd *, struct lst_header *, symindex *)); | |
b34976b6 | 274 | static bfd_boolean som_bfd_fill_in_ar_symbols |
34f304a7 | 275 | PARAMS ((bfd *, struct lst_header *, carsym **)); |
b34976b6 AM |
276 | static bfd_boolean som_slurp_armap |
277 | PARAMS ((bfd *)); | |
278 | static bfd_boolean som_write_armap | |
279 | PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); | |
280 | static void som_bfd_derive_misc_symbol_info | |
281 | PARAMS ((bfd *, asymbol *, struct som_misc_symbol_info *)); | |
282 | static bfd_boolean som_bfd_prep_for_ar_write | |
283 | PARAMS ((bfd *, unsigned int *, unsigned int *)); | |
284 | static unsigned int som_bfd_ar_symbol_hash | |
285 | PARAMS ((asymbol *)); | |
286 | static bfd_boolean som_bfd_ar_write_symbol_stuff | |
287 | PARAMS ((bfd *, unsigned int, unsigned int, struct lst_header, | |
288 | unsigned int)); | |
289 | static bfd_boolean som_is_space | |
290 | PARAMS ((asection *)); | |
291 | static bfd_boolean som_is_subspace | |
292 | PARAMS ((asection *)); | |
293 | static bfd_boolean som_is_container | |
294 | PARAMS ((asection *, asection *)); | |
295 | static bfd_boolean som_bfd_free_cached_info | |
296 | PARAMS ((bfd *)); | |
297 | static bfd_boolean som_bfd_link_split_section | |
298 | PARAMS ((bfd *, asection *)); | |
6fa957a9 | 299 | |
252b5132 RH |
300 | /* Map SOM section names to POSIX/BSD single-character symbol types. |
301 | ||
6fa957a9 KH |
302 | This table includes all the standard subspaces as defined in the |
303 | current "PRO ABI for PA-RISC Systems", $UNWIND$ which for | |
252b5132 RH |
304 | some reason was left out, and sections specific to embedded stabs. */ |
305 | ||
306 | static const struct section_to_type stt[] = { | |
307 | {"$TEXT$", 't'}, | |
308 | {"$SHLIB_INFO$", 't'}, | |
309 | {"$MILLICODE$", 't'}, | |
310 | {"$LIT$", 't'}, | |
311 | {"$CODE$", 't'}, | |
312 | {"$UNWIND_START$", 't'}, | |
313 | {"$UNWIND$", 't'}, | |
314 | {"$PRIVATE$", 'd'}, | |
315 | {"$PLT$", 'd'}, | |
316 | {"$SHLIB_DATA$", 'd'}, | |
317 | {"$DATA$", 'd'}, | |
318 | {"$SHORTDATA$", 'g'}, | |
319 | {"$DLT$", 'd'}, | |
320 | {"$GLOBAL$", 'g'}, | |
321 | {"$SHORTBSS$", 's'}, | |
322 | {"$BSS$", 'b'}, | |
323 | {"$GDB_STRINGS$", 'N'}, | |
324 | {"$GDB_SYMBOLS$", 'N'}, | |
325 | {0, 0} | |
326 | }; | |
327 | ||
328 | /* About the relocation formatting table... | |
329 | ||
330 | There are 256 entries in the table, one for each possible | |
331 | relocation opcode available in SOM. We index the table by | |
332 | the relocation opcode. The names and operations are those | |
333 | defined by a.out_800 (4). | |
334 | ||
335 | Right now this table is only used to count and perform minimal | |
336 | processing on relocation streams so that they can be internalized | |
6fa957a9 | 337 | into BFD and symbolically printed by utilities. To make actual use |
252b5132 RH |
338 | of them would be much more difficult, BFD's concept of relocations |
339 | is far too simple to handle SOM relocations. The basic assumption | |
340 | that a relocation can be completely processed independent of other | |
341 | relocations before an object file is written is invalid for SOM. | |
342 | ||
343 | The SOM relocations are meant to be processed as a stream, they | |
344 | specify copying of data from the input section to the output section | |
6fa957a9 | 345 | while possibly modifying the data in some manner. They also can |
252b5132 RH |
346 | specify that a variable number of zeros or uninitialized data be |
347 | inserted on in the output segment at the current offset. Some | |
348 | relocations specify that some previous relocation be re-applied at | |
349 | the current location in the input/output sections. And finally a number | |
350 | of relocations have effects on other sections (R_ENTRY, R_EXIT, | |
351 | R_UNWIND_AUX and a variety of others). There isn't even enough room | |
352 | in the BFD relocation data structure to store enough information to | |
353 | perform all the relocations. | |
354 | ||
6fa957a9 | 355 | Each entry in the table has three fields. |
252b5132 RH |
356 | |
357 | The first entry is an index into this "class" of relocations. This | |
358 | index can then be used as a variable within the relocation itself. | |
359 | ||
360 | The second field is a format string which actually controls processing | |
361 | of the relocation. It uses a simple postfix machine to do calculations | |
362 | based on variables/constants found in the string and the relocation | |
6fa957a9 | 363 | stream. |
252b5132 | 364 | |
6fa957a9 | 365 | The third field specifys whether or not this relocation may use |
252b5132 RH |
366 | a constant (V) from the previous R_DATA_OVERRIDE rather than a constant |
367 | stored in the instruction. | |
368 | ||
6fa957a9 KH |
369 | Variables: |
370 | ||
252b5132 RH |
371 | L = input space byte count |
372 | D = index into class of relocations | |
373 | M = output space byte count | |
374 | N = statement number (unused?) | |
375 | O = stack operation | |
376 | R = parameter relocation bits | |
377 | S = symbol index | |
378 | T = first 32 bits of stack unwind information | |
379 | U = second 32 bits of stack unwind information | |
380 | V = a literal constant (usually used in the next relocation) | |
381 | P = a previous relocation | |
6fa957a9 KH |
382 | |
383 | Lower case letters (starting with 'b') refer to following | |
252b5132 | 384 | bytes in the relocation stream. 'b' is the next 1 byte, |
6fa957a9 | 385 | c is the next 2 bytes, d is the next 3 bytes, etc... |
252b5132 RH |
386 | This is the variable part of the relocation entries that |
387 | makes our life a living hell. | |
388 | ||
389 | numerical constants are also used in the format string. Note | |
6fa957a9 | 390 | the constants are represented in decimal. |
252b5132 RH |
391 | |
392 | '+', "*" and "=" represents the obvious postfix operators. | |
6fa957a9 | 393 | '<' represents a left shift. |
252b5132 RH |
394 | |
395 | Stack Operations: | |
396 | ||
397 | Parameter Relocation Bits: | |
398 | ||
6fa957a9 KH |
399 | Unwind Entries: |
400 | ||
252b5132 RH |
401 | Previous Relocations: The index field represents which in the queue |
402 | of 4 previous fixups should be re-applied. | |
403 | ||
404 | Literal Constants: These are generally used to represent addend | |
405 | parts of relocations when these constants are not stored in the | |
406 | fields of the instructions themselves. For example the instruction | |
407 | addil foo-$global$-0x1234 would use an override for "0x1234" rather | |
408 | than storing it into the addil itself. */ | |
409 | ||
7eae7d22 | 410 | struct fixup_format { |
252b5132 | 411 | int D; |
7dca057b | 412 | const char *format; |
252b5132 RH |
413 | }; |
414 | ||
7eae7d22 | 415 | static const struct fixup_format som_fixup_formats[256] = { |
252b5132 | 416 | /* R_NO_RELOCATION */ |
dc810e39 AM |
417 | { 0, "LD1+4*=" }, /* 0x00 */ |
418 | { 1, "LD1+4*=" }, /* 0x01 */ | |
419 | { 2, "LD1+4*=" }, /* 0x02 */ | |
420 | { 3, "LD1+4*=" }, /* 0x03 */ | |
421 | { 4, "LD1+4*=" }, /* 0x04 */ | |
422 | { 5, "LD1+4*=" }, /* 0x05 */ | |
423 | { 6, "LD1+4*=" }, /* 0x06 */ | |
424 | { 7, "LD1+4*=" }, /* 0x07 */ | |
425 | { 8, "LD1+4*=" }, /* 0x08 */ | |
426 | { 9, "LD1+4*=" }, /* 0x09 */ | |
427 | { 10, "LD1+4*=" }, /* 0x0a */ | |
428 | { 11, "LD1+4*=" }, /* 0x0b */ | |
429 | { 12, "LD1+4*=" }, /* 0x0c */ | |
430 | { 13, "LD1+4*=" }, /* 0x0d */ | |
431 | { 14, "LD1+4*=" }, /* 0x0e */ | |
432 | { 15, "LD1+4*=" }, /* 0x0f */ | |
433 | { 16, "LD1+4*=" }, /* 0x10 */ | |
434 | { 17, "LD1+4*=" }, /* 0x11 */ | |
435 | { 18, "LD1+4*=" }, /* 0x12 */ | |
436 | { 19, "LD1+4*=" }, /* 0x13 */ | |
437 | { 20, "LD1+4*=" }, /* 0x14 */ | |
438 | { 21, "LD1+4*=" }, /* 0x15 */ | |
439 | { 22, "LD1+4*=" }, /* 0x16 */ | |
440 | { 23, "LD1+4*=" }, /* 0x17 */ | |
441 | { 0, "LD8<b+1+4*=" }, /* 0x18 */ | |
442 | { 1, "LD8<b+1+4*=" }, /* 0x19 */ | |
443 | { 2, "LD8<b+1+4*=" }, /* 0x1a */ | |
444 | { 3, "LD8<b+1+4*=" }, /* 0x1b */ | |
445 | { 0, "LD16<c+1+4*=" }, /* 0x1c */ | |
446 | { 1, "LD16<c+1+4*=" }, /* 0x1d */ | |
447 | { 2, "LD16<c+1+4*=" }, /* 0x1e */ | |
448 | { 0, "Ld1+=" }, /* 0x1f */ | |
252b5132 | 449 | /* R_ZEROES */ |
dc810e39 AM |
450 | { 0, "Lb1+4*=" }, /* 0x20 */ |
451 | { 1, "Ld1+=" }, /* 0x21 */ | |
252b5132 | 452 | /* R_UNINIT */ |
dc810e39 AM |
453 | { 0, "Lb1+4*=" }, /* 0x22 */ |
454 | { 1, "Ld1+=" }, /* 0x23 */ | |
252b5132 | 455 | /* R_RELOCATION */ |
dc810e39 | 456 | { 0, "L4=" }, /* 0x24 */ |
252b5132 | 457 | /* R_DATA_ONE_SYMBOL */ |
dc810e39 AM |
458 | { 0, "L4=Sb=" }, /* 0x25 */ |
459 | { 1, "L4=Sd=" }, /* 0x26 */ | |
252b5132 | 460 | /* R_DATA_PLEBEL */ |
dc810e39 AM |
461 | { 0, "L4=Sb=" }, /* 0x27 */ |
462 | { 1, "L4=Sd=" }, /* 0x28 */ | |
252b5132 | 463 | /* R_SPACE_REF */ |
dc810e39 | 464 | { 0, "L4=" }, /* 0x29 */ |
252b5132 | 465 | /* R_REPEATED_INIT */ |
dc810e39 AM |
466 | { 0, "L4=Mb1+4*=" }, /* 0x2a */ |
467 | { 1, "Lb4*=Mb1+L*=" }, /* 0x2b */ | |
468 | { 2, "Lb4*=Md1+4*=" }, /* 0x2c */ | |
469 | { 3, "Ld1+=Me1+=" }, /* 0x2d */ | |
470 | { 0, "" }, /* 0x2e */ | |
471 | { 0, "" }, /* 0x2f */ | |
252b5132 | 472 | /* R_PCREL_CALL */ |
dc810e39 AM |
473 | { 0, "L4=RD=Sb=" }, /* 0x30 */ |
474 | { 1, "L4=RD=Sb=" }, /* 0x31 */ | |
475 | { 2, "L4=RD=Sb=" }, /* 0x32 */ | |
476 | { 3, "L4=RD=Sb=" }, /* 0x33 */ | |
477 | { 4, "L4=RD=Sb=" }, /* 0x34 */ | |
478 | { 5, "L4=RD=Sb=" }, /* 0x35 */ | |
479 | { 6, "L4=RD=Sb=" }, /* 0x36 */ | |
480 | { 7, "L4=RD=Sb=" }, /* 0x37 */ | |
481 | { 8, "L4=RD=Sb=" }, /* 0x38 */ | |
482 | { 9, "L4=RD=Sb=" }, /* 0x39 */ | |
483 | { 0, "L4=RD8<b+=Sb=" }, /* 0x3a */ | |
484 | { 1, "L4=RD8<b+=Sb=" }, /* 0x3b */ | |
485 | { 0, "L4=RD8<b+=Sd=" }, /* 0x3c */ | |
486 | { 1, "L4=RD8<b+=Sd=" }, /* 0x3d */ | |
c1006781 | 487 | /* R_SHORT_PCREL_MODE */ |
dc810e39 | 488 | { 0, "" }, /* 0x3e */ |
c1006781 | 489 | /* R_LONG_PCREL_MODE */ |
dc810e39 | 490 | { 0, "" }, /* 0x3f */ |
252b5132 | 491 | /* R_ABS_CALL */ |
dc810e39 AM |
492 | { 0, "L4=RD=Sb=" }, /* 0x40 */ |
493 | { 1, "L4=RD=Sb=" }, /* 0x41 */ | |
494 | { 2, "L4=RD=Sb=" }, /* 0x42 */ | |
495 | { 3, "L4=RD=Sb=" }, /* 0x43 */ | |
496 | { 4, "L4=RD=Sb=" }, /* 0x44 */ | |
497 | { 5, "L4=RD=Sb=" }, /* 0x45 */ | |
498 | { 6, "L4=RD=Sb=" }, /* 0x46 */ | |
499 | { 7, "L4=RD=Sb=" }, /* 0x47 */ | |
500 | { 8, "L4=RD=Sb=" }, /* 0x48 */ | |
501 | { 9, "L4=RD=Sb=" }, /* 0x49 */ | |
502 | { 0, "L4=RD8<b+=Sb=" }, /* 0x4a */ | |
503 | { 1, "L4=RD8<b+=Sb=" }, /* 0x4b */ | |
504 | { 0, "L4=RD8<b+=Sd=" }, /* 0x4c */ | |
505 | { 1, "L4=RD8<b+=Sd=" }, /* 0x4d */ | |
252b5132 | 506 | /* R_RESERVED */ |
dc810e39 AM |
507 | { 0, "" }, /* 0x4e */ |
508 | { 0, "" }, /* 0x4f */ | |
252b5132 | 509 | /* R_DP_RELATIVE */ |
dc810e39 AM |
510 | { 0, "L4=SD=" }, /* 0x50 */ |
511 | { 1, "L4=SD=" }, /* 0x51 */ | |
512 | { 2, "L4=SD=" }, /* 0x52 */ | |
513 | { 3, "L4=SD=" }, /* 0x53 */ | |
514 | { 4, "L4=SD=" }, /* 0x54 */ | |
515 | { 5, "L4=SD=" }, /* 0x55 */ | |
516 | { 6, "L4=SD=" }, /* 0x56 */ | |
517 | { 7, "L4=SD=" }, /* 0x57 */ | |
518 | { 8, "L4=SD=" }, /* 0x58 */ | |
519 | { 9, "L4=SD=" }, /* 0x59 */ | |
520 | { 10, "L4=SD=" }, /* 0x5a */ | |
521 | { 11, "L4=SD=" }, /* 0x5b */ | |
522 | { 12, "L4=SD=" }, /* 0x5c */ | |
523 | { 13, "L4=SD=" }, /* 0x5d */ | |
524 | { 14, "L4=SD=" }, /* 0x5e */ | |
525 | { 15, "L4=SD=" }, /* 0x5f */ | |
526 | { 16, "L4=SD=" }, /* 0x60 */ | |
527 | { 17, "L4=SD=" }, /* 0x61 */ | |
528 | { 18, "L4=SD=" }, /* 0x62 */ | |
529 | { 19, "L4=SD=" }, /* 0x63 */ | |
530 | { 20, "L4=SD=" }, /* 0x64 */ | |
531 | { 21, "L4=SD=" }, /* 0x65 */ | |
532 | { 22, "L4=SD=" }, /* 0x66 */ | |
533 | { 23, "L4=SD=" }, /* 0x67 */ | |
534 | { 24, "L4=SD=" }, /* 0x68 */ | |
535 | { 25, "L4=SD=" }, /* 0x69 */ | |
536 | { 26, "L4=SD=" }, /* 0x6a */ | |
537 | { 27, "L4=SD=" }, /* 0x6b */ | |
538 | { 28, "L4=SD=" }, /* 0x6c */ | |
539 | { 29, "L4=SD=" }, /* 0x6d */ | |
540 | { 30, "L4=SD=" }, /* 0x6e */ | |
541 | { 31, "L4=SD=" }, /* 0x6f */ | |
542 | { 32, "L4=Sb=" }, /* 0x70 */ | |
543 | { 33, "L4=Sd=" }, /* 0x71 */ | |
252b5132 | 544 | /* R_RESERVED */ |
dc810e39 AM |
545 | { 0, "" }, /* 0x72 */ |
546 | { 0, "" }, /* 0x73 */ | |
547 | { 0, "" }, /* 0x74 */ | |
548 | { 0, "" }, /* 0x75 */ | |
549 | { 0, "" }, /* 0x76 */ | |
550 | { 0, "" }, /* 0x77 */ | |
252b5132 | 551 | /* R_DLT_REL */ |
dc810e39 AM |
552 | { 0, "L4=Sb=" }, /* 0x78 */ |
553 | { 1, "L4=Sd=" }, /* 0x79 */ | |
252b5132 | 554 | /* R_RESERVED */ |
dc810e39 AM |
555 | { 0, "" }, /* 0x7a */ |
556 | { 0, "" }, /* 0x7b */ | |
557 | { 0, "" }, /* 0x7c */ | |
558 | { 0, "" }, /* 0x7d */ | |
559 | { 0, "" }, /* 0x7e */ | |
560 | { 0, "" }, /* 0x7f */ | |
252b5132 | 561 | /* R_CODE_ONE_SYMBOL */ |
dc810e39 AM |
562 | { 0, "L4=SD=" }, /* 0x80 */ |
563 | { 1, "L4=SD=" }, /* 0x81 */ | |
564 | { 2, "L4=SD=" }, /* 0x82 */ | |
565 | { 3, "L4=SD=" }, /* 0x83 */ | |
566 | { 4, "L4=SD=" }, /* 0x84 */ | |
567 | { 5, "L4=SD=" }, /* 0x85 */ | |
568 | { 6, "L4=SD=" }, /* 0x86 */ | |
569 | { 7, "L4=SD=" }, /* 0x87 */ | |
570 | { 8, "L4=SD=" }, /* 0x88 */ | |
571 | { 9, "L4=SD=" }, /* 0x89 */ | |
572 | { 10, "L4=SD=" }, /* 0x8q */ | |
573 | { 11, "L4=SD=" }, /* 0x8b */ | |
574 | { 12, "L4=SD=" }, /* 0x8c */ | |
575 | { 13, "L4=SD=" }, /* 0x8d */ | |
576 | { 14, "L4=SD=" }, /* 0x8e */ | |
577 | { 15, "L4=SD=" }, /* 0x8f */ | |
578 | { 16, "L4=SD=" }, /* 0x90 */ | |
579 | { 17, "L4=SD=" }, /* 0x91 */ | |
580 | { 18, "L4=SD=" }, /* 0x92 */ | |
581 | { 19, "L4=SD=" }, /* 0x93 */ | |
582 | { 20, "L4=SD=" }, /* 0x94 */ | |
583 | { 21, "L4=SD=" }, /* 0x95 */ | |
584 | { 22, "L4=SD=" }, /* 0x96 */ | |
585 | { 23, "L4=SD=" }, /* 0x97 */ | |
586 | { 24, "L4=SD=" }, /* 0x98 */ | |
587 | { 25, "L4=SD=" }, /* 0x99 */ | |
588 | { 26, "L4=SD=" }, /* 0x9a */ | |
589 | { 27, "L4=SD=" }, /* 0x9b */ | |
590 | { 28, "L4=SD=" }, /* 0x9c */ | |
591 | { 29, "L4=SD=" }, /* 0x9d */ | |
592 | { 30, "L4=SD=" }, /* 0x9e */ | |
593 | { 31, "L4=SD=" }, /* 0x9f */ | |
594 | { 32, "L4=Sb=" }, /* 0xa0 */ | |
595 | { 33, "L4=Sd=" }, /* 0xa1 */ | |
252b5132 | 596 | /* R_RESERVED */ |
dc810e39 AM |
597 | { 0, "" }, /* 0xa2 */ |
598 | { 0, "" }, /* 0xa3 */ | |
599 | { 0, "" }, /* 0xa4 */ | |
600 | { 0, "" }, /* 0xa5 */ | |
601 | { 0, "" }, /* 0xa6 */ | |
602 | { 0, "" }, /* 0xa7 */ | |
603 | { 0, "" }, /* 0xa8 */ | |
604 | { 0, "" }, /* 0xa9 */ | |
605 | { 0, "" }, /* 0xaa */ | |
606 | { 0, "" }, /* 0xab */ | |
607 | { 0, "" }, /* 0xac */ | |
608 | { 0, "" }, /* 0xad */ | |
252b5132 | 609 | /* R_MILLI_REL */ |
dc810e39 AM |
610 | { 0, "L4=Sb=" }, /* 0xae */ |
611 | { 1, "L4=Sd=" }, /* 0xaf */ | |
252b5132 | 612 | /* R_CODE_PLABEL */ |
dc810e39 AM |
613 | { 0, "L4=Sb=" }, /* 0xb0 */ |
614 | { 1, "L4=Sd=" }, /* 0xb1 */ | |
252b5132 | 615 | /* R_BREAKPOINT */ |
dc810e39 | 616 | { 0, "L4=" }, /* 0xb2 */ |
252b5132 | 617 | /* R_ENTRY */ |
dc810e39 AM |
618 | { 0, "Te=Ue=" }, /* 0xb3 */ |
619 | { 1, "Uf=" }, /* 0xb4 */ | |
252b5132 | 620 | /* R_ALT_ENTRY */ |
dc810e39 | 621 | { 0, "" }, /* 0xb5 */ |
252b5132 | 622 | /* R_EXIT */ |
dc810e39 | 623 | { 0, "" }, /* 0xb6 */ |
252b5132 | 624 | /* R_BEGIN_TRY */ |
dc810e39 | 625 | { 0, "" }, /* 0xb7 */ |
252b5132 | 626 | /* R_END_TRY */ |
dc810e39 AM |
627 | { 0, "R0=" }, /* 0xb8 */ |
628 | { 1, "Rb4*=" }, /* 0xb9 */ | |
629 | { 2, "Rd4*=" }, /* 0xba */ | |
252b5132 | 630 | /* R_BEGIN_BRTAB */ |
dc810e39 | 631 | { 0, "" }, /* 0xbb */ |
252b5132 | 632 | /* R_END_BRTAB */ |
dc810e39 | 633 | { 0, "" }, /* 0xbc */ |
252b5132 | 634 | /* R_STATEMENT */ |
dc810e39 AM |
635 | { 0, "Nb=" }, /* 0xbd */ |
636 | { 1, "Nc=" }, /* 0xbe */ | |
637 | { 2, "Nd=" }, /* 0xbf */ | |
252b5132 | 638 | /* R_DATA_EXPR */ |
dc810e39 | 639 | { 0, "L4=" }, /* 0xc0 */ |
252b5132 | 640 | /* R_CODE_EXPR */ |
dc810e39 | 641 | { 0, "L4=" }, /* 0xc1 */ |
252b5132 | 642 | /* R_FSEL */ |
dc810e39 | 643 | { 0, "" }, /* 0xc2 */ |
252b5132 | 644 | /* R_LSEL */ |
dc810e39 | 645 | { 0, "" }, /* 0xc3 */ |
252b5132 | 646 | /* R_RSEL */ |
dc810e39 | 647 | { 0, "" }, /* 0xc4 */ |
252b5132 | 648 | /* R_N_MODE */ |
dc810e39 | 649 | { 0, "" }, /* 0xc5 */ |
252b5132 | 650 | /* R_S_MODE */ |
dc810e39 | 651 | { 0, "" }, /* 0xc6 */ |
252b5132 | 652 | /* R_D_MODE */ |
dc810e39 | 653 | { 0, "" }, /* 0xc7 */ |
252b5132 | 654 | /* R_R_MODE */ |
dc810e39 | 655 | { 0, "" }, /* 0xc8 */ |
252b5132 | 656 | /* R_DATA_OVERRIDE */ |
dc810e39 AM |
657 | { 0, "V0=" }, /* 0xc9 */ |
658 | { 1, "Vb=" }, /* 0xca */ | |
659 | { 2, "Vc=" }, /* 0xcb */ | |
660 | { 3, "Vd=" }, /* 0xcc */ | |
661 | { 4, "Ve=" }, /* 0xcd */ | |
252b5132 | 662 | /* R_TRANSLATED */ |
dc810e39 | 663 | { 0, "" }, /* 0xce */ |
832fc202 | 664 | /* R_AUX_UNWIND */ |
34f304a7 | 665 | { 0,"Sd=Ve=Ee=" }, /* 0xcf */ |
252b5132 | 666 | /* R_COMP1 */ |
dc810e39 | 667 | { 0, "Ob=" }, /* 0xd0 */ |
252b5132 | 668 | /* R_COMP2 */ |
dc810e39 | 669 | { 0, "Ob=Sd=" }, /* 0xd1 */ |
252b5132 | 670 | /* R_COMP3 */ |
dc810e39 | 671 | { 0, "Ob=Ve=" }, /* 0xd2 */ |
252b5132 | 672 | /* R_PREV_FIXUP */ |
dc810e39 AM |
673 | { 0, "P" }, /* 0xd3 */ |
674 | { 1, "P" }, /* 0xd4 */ | |
675 | { 2, "P" }, /* 0xd5 */ | |
676 | { 3, "P" }, /* 0xd6 */ | |
252b5132 | 677 | /* R_SEC_STMT */ |
dc810e39 | 678 | { 0, "" }, /* 0xd7 */ |
252b5132 | 679 | /* R_N0SEL */ |
dc810e39 | 680 | { 0, "" }, /* 0xd8 */ |
252b5132 | 681 | /* R_N1SEL */ |
dc810e39 | 682 | { 0, "" }, /* 0xd9 */ |
252b5132 | 683 | /* R_LINETAB */ |
dc810e39 | 684 | { 0, "Eb=Sd=Ve=" }, /* 0xda */ |
252b5132 | 685 | /* R_LINETAB_ESC */ |
dc810e39 | 686 | { 0, "Eb=Mb=" }, /* 0xdb */ |
252b5132 | 687 | /* R_LTP_OVERRIDE */ |
dc810e39 | 688 | { 0, "" }, /* 0xdc */ |
252b5132 | 689 | /* R_COMMENT */ |
34f304a7 | 690 | { 0, "Ob=Vf=" }, /* 0xdd */ |
252b5132 | 691 | /* R_RESERVED */ |
dc810e39 AM |
692 | { 0, "" }, /* 0xde */ |
693 | { 0, "" }, /* 0xdf */ | |
694 | { 0, "" }, /* 0xe0 */ | |
695 | { 0, "" }, /* 0xe1 */ | |
696 | { 0, "" }, /* 0xe2 */ | |
697 | { 0, "" }, /* 0xe3 */ | |
698 | { 0, "" }, /* 0xe4 */ | |
699 | { 0, "" }, /* 0xe5 */ | |
700 | { 0, "" }, /* 0xe6 */ | |
701 | { 0, "" }, /* 0xe7 */ | |
702 | { 0, "" }, /* 0xe8 */ | |
703 | { 0, "" }, /* 0xe9 */ | |
704 | { 0, "" }, /* 0xea */ | |
705 | { 0, "" }, /* 0xeb */ | |
706 | { 0, "" }, /* 0xec */ | |
707 | { 0, "" }, /* 0xed */ | |
708 | { 0, "" }, /* 0xee */ | |
709 | { 0, "" }, /* 0xef */ | |
710 | { 0, "" }, /* 0xf0 */ | |
711 | { 0, "" }, /* 0xf1 */ | |
712 | { 0, "" }, /* 0xf2 */ | |
713 | { 0, "" }, /* 0xf3 */ | |
714 | { 0, "" }, /* 0xf4 */ | |
715 | { 0, "" }, /* 0xf5 */ | |
716 | { 0, "" }, /* 0xf6 */ | |
717 | { 0, "" }, /* 0xf7 */ | |
718 | { 0, "" }, /* 0xf8 */ | |
719 | { 0, "" }, /* 0xf9 */ | |
720 | { 0, "" }, /* 0xfa */ | |
721 | { 0, "" }, /* 0xfb */ | |
722 | { 0, "" }, /* 0xfc */ | |
723 | { 0, "" }, /* 0xfd */ | |
724 | { 0, "" }, /* 0xfe */ | |
725 | { 0, "" }, /* 0xff */ | |
252b5132 RH |
726 | }; |
727 | ||
7eae7d22 | 728 | static const int comp1_opcodes[] = { |
252b5132 RH |
729 | 0x00, |
730 | 0x40, | |
731 | 0x41, | |
732 | 0x42, | |
733 | 0x43, | |
734 | 0x44, | |
735 | 0x45, | |
736 | 0x46, | |
737 | 0x47, | |
738 | 0x48, | |
739 | 0x49, | |
740 | 0x4a, | |
741 | 0x4b, | |
742 | 0x60, | |
743 | 0x80, | |
744 | 0xa0, | |
745 | 0xc0, | |
746 | -1 | |
747 | }; | |
748 | ||
7eae7d22 | 749 | static const int comp2_opcodes[] = { |
252b5132 RH |
750 | 0x00, |
751 | 0x80, | |
752 | 0x82, | |
753 | 0xc0, | |
754 | -1 | |
755 | }; | |
756 | ||
7eae7d22 | 757 | static const int comp3_opcodes[] = { |
252b5132 RH |
758 | 0x00, |
759 | 0x02, | |
760 | -1 | |
761 | }; | |
762 | ||
763 | /* These apparently are not in older versions of hpux reloc.h (hpux7). */ | |
764 | #ifndef R_DLT_REL | |
765 | #define R_DLT_REL 0x78 | |
766 | #endif | |
767 | ||
768 | #ifndef R_AUX_UNWIND | |
769 | #define R_AUX_UNWIND 0xcf | |
770 | #endif | |
771 | ||
772 | #ifndef R_SEC_STMT | |
773 | #define R_SEC_STMT 0xd7 | |
774 | #endif | |
775 | ||
776 | /* And these first appeared in hpux10. */ | |
777 | #ifndef R_SHORT_PCREL_MODE | |
2667095f | 778 | #define NO_PCREL_MODES |
252b5132 RH |
779 | #define R_SHORT_PCREL_MODE 0x3e |
780 | #endif | |
781 | ||
782 | #ifndef R_LONG_PCREL_MODE | |
783 | #define R_LONG_PCREL_MODE 0x3f | |
784 | #endif | |
785 | ||
786 | #ifndef R_N0SEL | |
787 | #define R_N0SEL 0xd8 | |
788 | #endif | |
789 | ||
790 | #ifndef R_N1SEL | |
791 | #define R_N1SEL 0xd9 | |
792 | #endif | |
793 | ||
794 | #ifndef R_LINETAB | |
795 | #define R_LINETAB 0xda | |
796 | #endif | |
797 | ||
798 | #ifndef R_LINETAB_ESC | |
799 | #define R_LINETAB_ESC 0xdb | |
800 | #endif | |
801 | ||
802 | #ifndef R_LTP_OVERRIDE | |
803 | #define R_LTP_OVERRIDE 0xdc | |
804 | #endif | |
805 | ||
806 | #ifndef R_COMMENT | |
807 | #define R_COMMENT 0xdd | |
808 | #endif | |
809 | ||
36e89602 | 810 | #define SOM_HOWTO(TYPE, NAME) \ |
b34976b6 | 811 | HOWTO(TYPE, 0, 0, 32, FALSE, 0, 0, hppa_som_reloc, NAME, FALSE, 0, 0, FALSE) |
36e89602 | 812 | |
7eae7d22 | 813 | static reloc_howto_type som_hppa_howto_table[] = { |
7dca057b JL |
814 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), |
815 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
816 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
817 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
818 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
819 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
820 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
821 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
822 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
823 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
824 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
825 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
826 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
827 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
828 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
829 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
830 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
831 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
832 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
833 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
834 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
835 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
836 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
837 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
838 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
839 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
840 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
841 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
842 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
843 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
844 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
845 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
846 | SOM_HOWTO (R_ZEROES, "R_ZEROES"), | |
847 | SOM_HOWTO (R_ZEROES, "R_ZEROES"), | |
848 | SOM_HOWTO (R_UNINIT, "R_UNINIT"), | |
849 | SOM_HOWTO (R_UNINIT, "R_UNINIT"), | |
850 | SOM_HOWTO (R_RELOCATION, "R_RELOCATION"), | |
851 | SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"), | |
852 | SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"), | |
853 | SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"), | |
854 | SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"), | |
855 | SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"), | |
856 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
857 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
858 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
859 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
860 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
861 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
862 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
863 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
864 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
865 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
866 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
867 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
868 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
869 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
870 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
871 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
872 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
873 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
874 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
875 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
876 | SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"), | |
877 | SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"), | |
878 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
879 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
880 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
881 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
882 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
883 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
884 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
885 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
886 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
887 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
888 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
889 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
890 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
891 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
892 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
893 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
894 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
895 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
896 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
897 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
898 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
899 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
900 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
901 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
902 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
903 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
904 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
905 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
906 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
907 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
908 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
909 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
910 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
911 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
912 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
913 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
914 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
915 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
916 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
917 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
918 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
919 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
920 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
921 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
922 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
923 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
924 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
925 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
926 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
927 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
928 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
929 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
930 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
931 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
932 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
933 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
934 | SOM_HOWTO (R_DLT_REL, "R_DLT_REL"), | |
935 | SOM_HOWTO (R_DLT_REL, "R_DLT_REL"), | |
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_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
943 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
944 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
945 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
946 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
947 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
948 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
949 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
950 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
951 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
952 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
953 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
954 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
955 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
956 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
957 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
958 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
959 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
960 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
961 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
962 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
963 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
964 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
965 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
966 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
967 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
968 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
969 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
970 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
971 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
972 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
973 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
974 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
975 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
976 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
977 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
978 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
979 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
980 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
981 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
982 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
983 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
984 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
985 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
986 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
987 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
988 | SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"), | |
989 | SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"), | |
990 | SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"), | |
991 | SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"), | |
992 | SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"), | |
993 | SOM_HOWTO (R_ENTRY, "R_ENTRY"), | |
994 | SOM_HOWTO (R_ENTRY, "R_ENTRY"), | |
995 | SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"), | |
996 | SOM_HOWTO (R_EXIT, "R_EXIT"), | |
997 | SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"), | |
998 | SOM_HOWTO (R_END_TRY, "R_END_TRY"), | |
999 | SOM_HOWTO (R_END_TRY, "R_END_TRY"), | |
1000 | SOM_HOWTO (R_END_TRY, "R_END_TRY"), | |
1001 | SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"), | |
1002 | SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"), | |
1003 | SOM_HOWTO (R_STATEMENT, "R_STATEMENT"), | |
1004 | SOM_HOWTO (R_STATEMENT, "R_STATEMENT"), | |
1005 | SOM_HOWTO (R_STATEMENT, "R_STATEMENT"), | |
1006 | SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"), | |
1007 | SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"), | |
1008 | SOM_HOWTO (R_FSEL, "R_FSEL"), | |
1009 | SOM_HOWTO (R_LSEL, "R_LSEL"), | |
1010 | SOM_HOWTO (R_RSEL, "R_RSEL"), | |
1011 | SOM_HOWTO (R_N_MODE, "R_N_MODE"), | |
1012 | SOM_HOWTO (R_S_MODE, "R_S_MODE"), | |
1013 | SOM_HOWTO (R_D_MODE, "R_D_MODE"), | |
1014 | SOM_HOWTO (R_R_MODE, "R_R_MODE"), | |
1015 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
1016 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
1017 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
1018 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
1019 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
1020 | SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"), | |
1021 | SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"), | |
1022 | SOM_HOWTO (R_COMP1, "R_COMP1"), | |
1023 | SOM_HOWTO (R_COMP2, "R_COMP2"), | |
1024 | SOM_HOWTO (R_COMP3, "R_COMP3"), | |
1025 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1026 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1027 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1028 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1029 | SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"), | |
1030 | SOM_HOWTO (R_N0SEL, "R_N0SEL"), | |
1031 | SOM_HOWTO (R_N1SEL, "R_N1SEL"), | |
1032 | SOM_HOWTO (R_LINETAB, "R_LINETAB"), | |
1033 | SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"), | |
1034 | SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"), | |
1035 | SOM_HOWTO (R_COMMENT, "R_COMMENT"), | |
1036 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1037 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1038 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1039 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1040 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1041 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1042 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1043 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1044 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1045 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1046 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1047 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1048 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1049 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1050 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1051 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1052 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1053 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1054 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1055 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1056 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1057 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1058 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1059 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1060 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1061 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1062 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1063 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1064 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1065 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1066 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1067 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1068 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
7eae7d22 KH |
1069 | SOM_HOWTO (R_RESERVED, "R_RESERVED") |
1070 | }; | |
6fa957a9 | 1071 | |
252b5132 RH |
1072 | /* Initialize the SOM relocation queue. By definition the queue holds |
1073 | the last four multibyte fixups. */ | |
6fa957a9 | 1074 | |
252b5132 RH |
1075 | static void |
1076 | som_initialize_reloc_queue (queue) | |
1077 | struct reloc_queue *queue; | |
1078 | { | |
1079 | queue[0].reloc = NULL; | |
1080 | queue[0].size = 0; | |
1081 | queue[1].reloc = NULL; | |
1082 | queue[1].size = 0; | |
1083 | queue[2].reloc = NULL; | |
1084 | queue[2].size = 0; | |
1085 | queue[3].reloc = NULL; | |
1086 | queue[3].size = 0; | |
1087 | } | |
1088 | ||
1089 | /* Insert a new relocation into the relocation queue. */ | |
1090 | ||
1091 | static void | |
1092 | som_reloc_queue_insert (p, size, queue) | |
1093 | unsigned char *p; | |
1094 | unsigned int size; | |
1095 | struct reloc_queue *queue; | |
1096 | { | |
1097 | queue[3].reloc = queue[2].reloc; | |
1098 | queue[3].size = queue[2].size; | |
1099 | queue[2].reloc = queue[1].reloc; | |
1100 | queue[2].size = queue[1].size; | |
1101 | queue[1].reloc = queue[0].reloc; | |
1102 | queue[1].size = queue[0].size; | |
1103 | queue[0].reloc = p; | |
1104 | queue[0].size = size; | |
1105 | } | |
1106 | ||
1107 | /* When an entry in the relocation queue is reused, the entry moves | |
1108 | to the front of the queue. */ | |
1109 | ||
1110 | static void | |
1111 | som_reloc_queue_fix (queue, index) | |
1112 | struct reloc_queue *queue; | |
1113 | unsigned int index; | |
1114 | { | |
1115 | if (index == 0) | |
1116 | return; | |
1117 | ||
1118 | if (index == 1) | |
1119 | { | |
1120 | unsigned char *tmp1 = queue[0].reloc; | |
1121 | unsigned int tmp2 = queue[0].size; | |
1122 | queue[0].reloc = queue[1].reloc; | |
1123 | queue[0].size = queue[1].size; | |
1124 | queue[1].reloc = tmp1; | |
1125 | queue[1].size = tmp2; | |
1126 | return; | |
1127 | } | |
1128 | ||
1129 | if (index == 2) | |
1130 | { | |
1131 | unsigned char *tmp1 = queue[0].reloc; | |
1132 | unsigned int tmp2 = queue[0].size; | |
1133 | queue[0].reloc = queue[2].reloc; | |
1134 | queue[0].size = queue[2].size; | |
1135 | queue[2].reloc = queue[1].reloc; | |
1136 | queue[2].size = queue[1].size; | |
1137 | queue[1].reloc = tmp1; | |
1138 | queue[1].size = tmp2; | |
1139 | return; | |
1140 | } | |
1141 | ||
1142 | if (index == 3) | |
1143 | { | |
1144 | unsigned char *tmp1 = queue[0].reloc; | |
1145 | unsigned int tmp2 = queue[0].size; | |
1146 | queue[0].reloc = queue[3].reloc; | |
1147 | queue[0].size = queue[3].size; | |
1148 | queue[3].reloc = queue[2].reloc; | |
1149 | queue[3].size = queue[2].size; | |
1150 | queue[2].reloc = queue[1].reloc; | |
1151 | queue[2].size = queue[1].size; | |
1152 | queue[1].reloc = tmp1; | |
1153 | queue[1].size = tmp2; | |
1154 | return; | |
1155 | } | |
6fa957a9 | 1156 | abort (); |
252b5132 RH |
1157 | } |
1158 | ||
1159 | /* Search for a particular relocation in the relocation queue. */ | |
1160 | ||
1161 | static int | |
1162 | som_reloc_queue_find (p, size, queue) | |
1163 | unsigned char *p; | |
1164 | unsigned int size; | |
1165 | struct reloc_queue *queue; | |
1166 | { | |
1167 | if (queue[0].reloc && !memcmp (p, queue[0].reloc, size) | |
1168 | && size == queue[0].size) | |
1169 | return 0; | |
1170 | if (queue[1].reloc && !memcmp (p, queue[1].reloc, size) | |
1171 | && size == queue[1].size) | |
1172 | return 1; | |
1173 | if (queue[2].reloc && !memcmp (p, queue[2].reloc, size) | |
1174 | && size == queue[2].size) | |
1175 | return 2; | |
1176 | if (queue[3].reloc && !memcmp (p, queue[3].reloc, size) | |
1177 | && size == queue[3].size) | |
1178 | return 3; | |
1179 | return -1; | |
1180 | } | |
1181 | ||
1182 | static unsigned char * | |
1183 | try_prev_fixup (abfd, subspace_reloc_sizep, p, size, queue) | |
7dca057b | 1184 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1185 | int *subspace_reloc_sizep; |
1186 | unsigned char *p; | |
1187 | unsigned int size; | |
1188 | struct reloc_queue *queue; | |
1189 | { | |
1190 | int queue_index = som_reloc_queue_find (p, size, queue); | |
1191 | ||
1192 | if (queue_index != -1) | |
1193 | { | |
1194 | /* Found this in a previous fixup. Undo the fixup we | |
6fa957a9 | 1195 | just built and use R_PREV_FIXUP instead. We saved |
252b5132 RH |
1196 | a total of size - 1 bytes in the fixup stream. */ |
1197 | bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p); | |
1198 | p += 1; | |
1199 | *subspace_reloc_sizep += 1; | |
1200 | som_reloc_queue_fix (queue, queue_index); | |
1201 | } | |
1202 | else | |
1203 | { | |
1204 | som_reloc_queue_insert (p, size, queue); | |
1205 | *subspace_reloc_sizep += size; | |
1206 | p += size; | |
1207 | } | |
1208 | return p; | |
1209 | } | |
1210 | ||
1211 | /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP | |
1212 | bytes without any relocation. Update the size of the subspace | |
6fa957a9 | 1213 | relocation stream via SUBSPACE_RELOC_SIZE_P; also return the |
252b5132 RH |
1214 | current pointer into the relocation stream. */ |
1215 | ||
1216 | static unsigned char * | |
1217 | som_reloc_skip (abfd, skip, p, subspace_reloc_sizep, queue) | |
1218 | bfd *abfd; | |
1219 | unsigned int skip; | |
1220 | unsigned char *p; | |
1221 | unsigned int *subspace_reloc_sizep; | |
1222 | struct reloc_queue *queue; | |
1223 | { | |
1224 | /* Use a 4 byte R_NO_RELOCATION entry with a maximal value | |
1225 | then R_PREV_FIXUPs to get the difference down to a | |
1226 | reasonable size. */ | |
1227 | if (skip >= 0x1000000) | |
1228 | { | |
1229 | skip -= 0x1000000; | |
1230 | bfd_put_8 (abfd, R_NO_RELOCATION + 31, p); | |
1231 | bfd_put_8 (abfd, 0xff, p + 1); | |
dc810e39 | 1232 | bfd_put_16 (abfd, (bfd_vma) 0xffff, p + 2); |
252b5132 RH |
1233 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue); |
1234 | while (skip >= 0x1000000) | |
1235 | { | |
1236 | skip -= 0x1000000; | |
1237 | bfd_put_8 (abfd, R_PREV_FIXUP, p); | |
1238 | p++; | |
1239 | *subspace_reloc_sizep += 1; | |
1240 | /* No need to adjust queue here since we are repeating the | |
1241 | most recent fixup. */ | |
1242 | } | |
1243 | } | |
6fa957a9 KH |
1244 | |
1245 | /* The difference must be less than 0x1000000. Use one | |
252b5132 RH |
1246 | more R_NO_RELOCATION entry to get to the right difference. */ |
1247 | if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0) | |
1248 | { | |
1249 | /* Difference can be handled in a simple single-byte | |
1250 | R_NO_RELOCATION entry. */ | |
1251 | if (skip <= 0x60) | |
1252 | { | |
1253 | bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p); | |
1254 | *subspace_reloc_sizep += 1; | |
1255 | p++; | |
1256 | } | |
1257 | /* Handle it with a two byte R_NO_RELOCATION entry. */ | |
1258 | else if (skip <= 0x1000) | |
1259 | { | |
1260 | bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p); | |
1261 | bfd_put_8 (abfd, (skip >> 2) - 1, p + 1); | |
1262 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue); | |
1263 | } | |
1264 | /* Handle it with a three byte R_NO_RELOCATION entry. */ | |
1265 | else | |
1266 | { | |
1267 | bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p); | |
dc810e39 | 1268 | bfd_put_16 (abfd, (bfd_vma) (skip >> 2) - 1, p + 1); |
252b5132 RH |
1269 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue); |
1270 | } | |
1271 | } | |
1272 | /* Ugh. Punt and use a 4 byte entry. */ | |
1273 | else if (skip > 0) | |
1274 | { | |
1275 | bfd_put_8 (abfd, R_NO_RELOCATION + 31, p); | |
1276 | bfd_put_8 (abfd, (skip - 1) >> 16, p + 1); | |
dc810e39 | 1277 | bfd_put_16 (abfd, (bfd_vma) skip - 1, p + 2); |
252b5132 RH |
1278 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue); |
1279 | } | |
1280 | return p; | |
1281 | } | |
1282 | ||
1283 | /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend | |
1284 | from a BFD relocation. Update the size of the subspace relocation | |
1285 | stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer | |
1286 | into the relocation stream. */ | |
1287 | ||
1288 | static unsigned char * | |
1289 | som_reloc_addend (abfd, addend, p, subspace_reloc_sizep, queue) | |
1290 | bfd *abfd; | |
dc810e39 | 1291 | bfd_vma addend; |
252b5132 RH |
1292 | unsigned char *p; |
1293 | unsigned int *subspace_reloc_sizep; | |
1294 | struct reloc_queue *queue; | |
1295 | { | |
dc810e39 | 1296 | if (addend + 0x80 < 0x100) |
252b5132 RH |
1297 | { |
1298 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p); | |
1299 | bfd_put_8 (abfd, addend, p + 1); | |
6fa957a9 | 1300 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue); |
252b5132 | 1301 | } |
dc810e39 | 1302 | else if (addend + 0x8000 < 0x10000) |
252b5132 RH |
1303 | { |
1304 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p); | |
1305 | bfd_put_16 (abfd, addend, p + 1); | |
1306 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue); | |
1307 | } | |
dc810e39 | 1308 | else if (addend + 0x800000 < 0x1000000) |
252b5132 RH |
1309 | { |
1310 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p); | |
1311 | bfd_put_8 (abfd, addend >> 16, p + 1); | |
1312 | bfd_put_16 (abfd, addend, p + 2); | |
1313 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue); | |
1314 | } | |
1315 | else | |
1316 | { | |
1317 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p); | |
1318 | bfd_put_32 (abfd, addend, p + 1); | |
1319 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue); | |
1320 | } | |
1321 | return p; | |
1322 | } | |
1323 | ||
1324 | /* Handle a single function call relocation. */ | |
1325 | ||
1326 | static unsigned char * | |
1327 | som_reloc_call (abfd, p, subspace_reloc_sizep, bfd_reloc, sym_num, queue) | |
1328 | bfd *abfd; | |
1329 | unsigned char *p; | |
1330 | unsigned int *subspace_reloc_sizep; | |
1331 | arelent *bfd_reloc; | |
1332 | int sym_num; | |
1333 | struct reloc_queue *queue; | |
1334 | { | |
1335 | int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend); | |
1336 | int rtn_bits = arg_bits & 0x3; | |
1337 | int type, done = 0; | |
6fa957a9 | 1338 | |
252b5132 RH |
1339 | /* You'll never believe all this is necessary to handle relocations |
1340 | for function calls. Having to compute and pack the argument | |
1341 | relocation bits is the real nightmare. | |
6fa957a9 | 1342 | |
252b5132 RH |
1343 | If you're interested in how this works, just forget it. You really |
1344 | do not want to know about this braindamage. */ | |
1345 | ||
1346 | /* First see if this can be done with a "simple" relocation. Simple | |
1347 | relocations have a symbol number < 0x100 and have simple encodings | |
1348 | of argument relocations. */ | |
1349 | ||
1350 | if (sym_num < 0x100) | |
1351 | { | |
1352 | switch (arg_bits) | |
1353 | { | |
1354 | case 0: | |
1355 | case 1: | |
1356 | type = 0; | |
1357 | break; | |
1358 | case 1 << 8: | |
1359 | case 1 << 8 | 1: | |
1360 | type = 1; | |
1361 | break; | |
1362 | case 1 << 8 | 1 << 6: | |
1363 | case 1 << 8 | 1 << 6 | 1: | |
1364 | type = 2; | |
1365 | break; | |
1366 | case 1 << 8 | 1 << 6 | 1 << 4: | |
1367 | case 1 << 8 | 1 << 6 | 1 << 4 | 1: | |
1368 | type = 3; | |
1369 | break; | |
1370 | case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2: | |
1371 | case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1: | |
1372 | type = 4; | |
1373 | break; | |
1374 | default: | |
1375 | /* Not one of the easy encodings. This will have to be | |
1376 | handled by the more complex code below. */ | |
1377 | type = -1; | |
1378 | break; | |
1379 | } | |
1380 | if (type != -1) | |
1381 | { | |
1382 | /* Account for the return value too. */ | |
1383 | if (rtn_bits) | |
1384 | type += 5; | |
1385 | ||
1386 | /* Emit a 2 byte relocation. Then see if it can be handled | |
1387 | with a relocation which is already in the relocation queue. */ | |
1388 | bfd_put_8 (abfd, bfd_reloc->howto->type + type, p); | |
1389 | bfd_put_8 (abfd, sym_num, p + 1); | |
1390 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue); | |
1391 | done = 1; | |
1392 | } | |
1393 | } | |
6fa957a9 | 1394 | |
252b5132 RH |
1395 | /* If this could not be handled with a simple relocation, then do a hard |
1396 | one. Hard relocations occur if the symbol number was too high or if | |
1397 | the encoding of argument relocation bits is too complex. */ | |
1398 | if (! done) | |
1399 | { | |
1400 | /* Don't ask about these magic sequences. I took them straight | |
1401 | from gas-1.36 which took them from the a.out man page. */ | |
1402 | type = rtn_bits; | |
1403 | if ((arg_bits >> 6 & 0xf) == 0xe) | |
1404 | type += 9 * 40; | |
1405 | else | |
1406 | type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40; | |
1407 | if ((arg_bits >> 2 & 0xf) == 0xe) | |
1408 | type += 9 * 4; | |
1409 | else | |
1410 | type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4; | |
6fa957a9 | 1411 | |
252b5132 RH |
1412 | /* Output the first two bytes of the relocation. These describe |
1413 | the length of the relocation and encoding style. */ | |
1414 | bfd_put_8 (abfd, bfd_reloc->howto->type + 10 | |
1415 | + 2 * (sym_num >= 0x100) + (type >= 0x100), | |
1416 | p); | |
1417 | bfd_put_8 (abfd, type, p + 1); | |
6fa957a9 | 1418 | |
252b5132 RH |
1419 | /* Now output the symbol index and see if this bizarre relocation |
1420 | just happened to be in the relocation queue. */ | |
1421 | if (sym_num < 0x100) | |
1422 | { | |
1423 | bfd_put_8 (abfd, sym_num, p + 2); | |
1424 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue); | |
1425 | } | |
1426 | else | |
1427 | { | |
1428 | bfd_put_8 (abfd, sym_num >> 16, p + 2); | |
dc810e39 | 1429 | bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3); |
252b5132 RH |
1430 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue); |
1431 | } | |
1432 | } | |
1433 | return p; | |
1434 | } | |
1435 | ||
a99cf92b DA |
1436 | /* Return the logarithm of X, base 2, considering X unsigned, |
1437 | if X is a power of 2. Otherwise, returns -1. */ | |
252b5132 RH |
1438 | |
1439 | static int | |
a99cf92b | 1440 | exact_log2 (x) |
252b5132 RH |
1441 | unsigned int x; |
1442 | { | |
1443 | int log = 0; | |
1444 | ||
1445 | /* Test for 0 or a power of 2. */ | |
1446 | if (x == 0 || x != (x & -x)) | |
1447 | return -1; | |
1448 | ||
1449 | while ((x >>= 1) != 0) | |
1450 | log++; | |
1451 | return log; | |
1452 | } | |
1453 | ||
1454 | static bfd_reloc_status_type | |
1455 | hppa_som_reloc (abfd, reloc_entry, symbol_in, data, | |
1456 | input_section, output_bfd, error_message) | |
7dca057b | 1457 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 1458 | arelent *reloc_entry; |
7dca057b JL |
1459 | asymbol *symbol_in ATTRIBUTE_UNUSED; |
1460 | PTR data ATTRIBUTE_UNUSED; | |
252b5132 RH |
1461 | asection *input_section; |
1462 | bfd *output_bfd; | |
7dca057b | 1463 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1464 | { |
1465 | if (output_bfd) | |
1466 | { | |
1467 | reloc_entry->address += input_section->output_offset; | |
1468 | return bfd_reloc_ok; | |
1469 | } | |
1470 | return bfd_reloc_ok; | |
1471 | } | |
1472 | ||
1473 | /* Given a generic HPPA relocation type, the instruction format, | |
1474 | and a field selector, return one or more appropriate SOM relocations. */ | |
1475 | ||
1476 | int ** | |
1477 | hppa_som_gen_reloc_type (abfd, base_type, format, field, sym_diff, sym) | |
1478 | bfd *abfd; | |
1479 | int base_type; | |
1480 | int format; | |
1481 | enum hppa_reloc_field_selector_type_alt field; | |
1482 | int sym_diff; | |
1483 | asymbol *sym; | |
1484 | { | |
1485 | int *final_type, **final_types; | |
1486 | ||
dc810e39 AM |
1487 | final_types = (int **) bfd_alloc (abfd, (bfd_size_type) sizeof (int *) * 6); |
1488 | final_type = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); | |
252b5132 RH |
1489 | if (!final_types || !final_type) |
1490 | return NULL; | |
1491 | ||
6fa957a9 | 1492 | /* The field selector may require additional relocations to be |
252b5132 RH |
1493 | generated. It's impossible to know at this moment if additional |
1494 | relocations will be needed, so we make them. The code to actually | |
1495 | write the relocation/fixup stream is responsible for removing | |
1496 | any redundant relocations. */ | |
1497 | switch (field) | |
1498 | { | |
7eae7d22 KH |
1499 | case e_fsel: |
1500 | case e_psel: | |
1501 | case e_lpsel: | |
1502 | case e_rpsel: | |
1503 | final_types[0] = final_type; | |
1504 | final_types[1] = NULL; | |
1505 | final_types[2] = NULL; | |
1506 | *final_type = base_type; | |
1507 | break; | |
252b5132 | 1508 | |
7eae7d22 KH |
1509 | case e_tsel: |
1510 | case e_ltsel: | |
1511 | case e_rtsel: | |
dc810e39 | 1512 | final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1513 | if (!final_types[0]) |
1514 | return NULL; | |
1515 | if (field == e_tsel) | |
1516 | *final_types[0] = R_FSEL; | |
1517 | else if (field == e_ltsel) | |
1518 | *final_types[0] = R_LSEL; | |
1519 | else | |
1520 | *final_types[0] = R_RSEL; | |
1521 | final_types[1] = final_type; | |
1522 | final_types[2] = NULL; | |
1523 | *final_type = base_type; | |
1524 | break; | |
252b5132 | 1525 | |
7eae7d22 KH |
1526 | case e_lssel: |
1527 | case e_rssel: | |
dc810e39 | 1528 | final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1529 | if (!final_types[0]) |
1530 | return NULL; | |
1531 | *final_types[0] = R_S_MODE; | |
1532 | final_types[1] = final_type; | |
1533 | final_types[2] = NULL; | |
1534 | *final_type = base_type; | |
1535 | break; | |
252b5132 | 1536 | |
7eae7d22 KH |
1537 | case e_lsel: |
1538 | case e_rsel: | |
dc810e39 | 1539 | final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1540 | if (!final_types[0]) |
1541 | return NULL; | |
1542 | *final_types[0] = R_N_MODE; | |
1543 | final_types[1] = final_type; | |
1544 | final_types[2] = NULL; | |
1545 | *final_type = base_type; | |
1546 | break; | |
252b5132 | 1547 | |
7eae7d22 KH |
1548 | case e_ldsel: |
1549 | case e_rdsel: | |
dc810e39 | 1550 | final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1551 | if (!final_types[0]) |
1552 | return NULL; | |
1553 | *final_types[0] = R_D_MODE; | |
1554 | final_types[1] = final_type; | |
1555 | final_types[2] = NULL; | |
1556 | *final_type = base_type; | |
1557 | break; | |
252b5132 | 1558 | |
7eae7d22 KH |
1559 | case e_lrsel: |
1560 | case e_rrsel: | |
dc810e39 | 1561 | final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1562 | if (!final_types[0]) |
1563 | return NULL; | |
1564 | *final_types[0] = R_R_MODE; | |
1565 | final_types[1] = final_type; | |
1566 | final_types[2] = NULL; | |
1567 | *final_type = base_type; | |
1568 | break; | |
252b5132 | 1569 | |
7eae7d22 | 1570 | case e_nsel: |
dc810e39 | 1571 | final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1572 | if (!final_types[0]) |
1573 | return NULL; | |
1574 | *final_types[0] = R_N1SEL; | |
1575 | final_types[1] = final_type; | |
1576 | final_types[2] = NULL; | |
1577 | *final_type = base_type; | |
1578 | break; | |
252b5132 | 1579 | |
7eae7d22 KH |
1580 | case e_nlsel: |
1581 | case e_nlrsel: | |
dc810e39 | 1582 | final_types[0] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1583 | if (!final_types[0]) |
1584 | return NULL; | |
1585 | *final_types[0] = R_N0SEL; | |
dc810e39 | 1586 | final_types[1] = (int *) bfd_alloc (abfd, (bfd_size_type) sizeof (int)); |
7eae7d22 KH |
1587 | if (!final_types[1]) |
1588 | return NULL; | |
1589 | if (field == e_nlsel) | |
1590 | *final_types[1] = R_N_MODE; | |
1591 | else | |
1592 | *final_types[1] = R_R_MODE; | |
1593 | final_types[2] = final_type; | |
1594 | final_types[3] = NULL; | |
1595 | *final_type = base_type; | |
1596 | break; | |
5198ba8b DA |
1597 | |
1598 | /* FIXME: These two field selectors are not currently supported. */ | |
1599 | case e_ltpsel: | |
1600 | case e_rtpsel: | |
1601 | abort (); | |
252b5132 | 1602 | } |
6fa957a9 | 1603 | |
252b5132 RH |
1604 | switch (base_type) |
1605 | { | |
1606 | case R_HPPA: | |
1607 | /* The difference of two symbols needs *very* special handling. */ | |
1608 | if (sym_diff) | |
1609 | { | |
dc810e39 AM |
1610 | bfd_size_type amt = sizeof (int); |
1611 | final_types[0] = (int *) bfd_alloc (abfd, amt); | |
1612 | final_types[1] = (int *) bfd_alloc (abfd, amt); | |
1613 | final_types[2] = (int *) bfd_alloc (abfd, amt); | |
1614 | final_types[3] = (int *) bfd_alloc (abfd, amt); | |
252b5132 | 1615 | if (!final_types[0] || !final_types[1] || !final_types[2]) |
7eae7d22 | 1616 | return NULL; |
252b5132 RH |
1617 | if (field == e_fsel) |
1618 | *final_types[0] = R_FSEL; | |
1619 | else if (field == e_rsel) | |
1620 | *final_types[0] = R_RSEL; | |
1621 | else if (field == e_lsel) | |
1622 | *final_types[0] = R_LSEL; | |
1623 | *final_types[1] = R_COMP2; | |
1624 | *final_types[2] = R_COMP2; | |
1625 | *final_types[3] = R_COMP1; | |
1626 | final_types[4] = final_type; | |
1627 | if (format == 32) | |
1628 | *final_types[4] = R_DATA_EXPR; | |
1629 | else | |
1630 | *final_types[4] = R_CODE_EXPR; | |
1631 | final_types[5] = NULL; | |
1632 | break; | |
1633 | } | |
1634 | /* PLABELs get their own relocation type. */ | |
1635 | else if (field == e_psel | |
7eae7d22 KH |
1636 | || field == e_lpsel |
1637 | || field == e_rpsel) | |
252b5132 RH |
1638 | { |
1639 | /* A PLABEL relocation that has a size of 32 bits must | |
1640 | be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */ | |
1641 | if (format == 32) | |
1642 | *final_type = R_DATA_PLABEL; | |
1643 | else | |
1644 | *final_type = R_CODE_PLABEL; | |
1645 | } | |
1646 | /* PIC stuff. */ | |
1647 | else if (field == e_tsel | |
7eae7d22 KH |
1648 | || field == e_ltsel |
1649 | || field == e_rtsel) | |
252b5132 RH |
1650 | *final_type = R_DLT_REL; |
1651 | /* A relocation in the data space is always a full 32bits. */ | |
1652 | else if (format == 32) | |
1653 | { | |
1654 | *final_type = R_DATA_ONE_SYMBOL; | |
1655 | ||
1656 | /* If there's no SOM symbol type associated with this BFD | |
1657 | symbol, then set the symbol type to ST_DATA. | |
1658 | ||
1659 | Only do this if the type is going to default later when | |
1660 | we write the object file. | |
1661 | ||
1662 | This is done so that the linker never encounters an | |
1663 | R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol. | |
1664 | ||
1665 | This allows the compiler to generate exception handling | |
1666 | tables. | |
1667 | ||
1668 | Note that one day we may need to also emit BEGIN_BRTAB and | |
1669 | END_BRTAB to prevent the linker from optimizing away insns | |
1670 | in exception handling regions. */ | |
1671 | if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN | |
1672 | && (sym->flags & BSF_SECTION_SYM) == 0 | |
1673 | && (sym->flags & BSF_FUNCTION) == 0 | |
1674 | && ! bfd_is_com_section (sym->section)) | |
1675 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA; | |
1676 | } | |
1677 | break; | |
1678 | ||
252b5132 RH |
1679 | case R_HPPA_GOTOFF: |
1680 | /* More PLABEL special cases. */ | |
1681 | if (field == e_psel | |
1682 | || field == e_lpsel | |
1683 | || field == e_rpsel) | |
1684 | *final_type = R_DATA_PLABEL; | |
1685 | break; | |
1686 | ||
1687 | case R_HPPA_COMPLEX: | |
1688 | /* The difference of two symbols needs *very* special handling. */ | |
1689 | if (sym_diff) | |
1690 | { | |
dc810e39 AM |
1691 | bfd_size_type amt = sizeof (int); |
1692 | final_types[0] = (int *) bfd_alloc (abfd, amt); | |
1693 | final_types[1] = (int *) bfd_alloc (abfd, amt); | |
1694 | final_types[2] = (int *) bfd_alloc (abfd, amt); | |
1695 | final_types[3] = (int *) bfd_alloc (abfd, amt); | |
252b5132 | 1696 | if (!final_types[0] || !final_types[1] || !final_types[2]) |
7eae7d22 | 1697 | return NULL; |
252b5132 RH |
1698 | if (field == e_fsel) |
1699 | *final_types[0] = R_FSEL; | |
1700 | else if (field == e_rsel) | |
1701 | *final_types[0] = R_RSEL; | |
1702 | else if (field == e_lsel) | |
1703 | *final_types[0] = R_LSEL; | |
1704 | *final_types[1] = R_COMP2; | |
1705 | *final_types[2] = R_COMP2; | |
1706 | *final_types[3] = R_COMP1; | |
1707 | final_types[4] = final_type; | |
1708 | if (format == 32) | |
1709 | *final_types[4] = R_DATA_EXPR; | |
1710 | else | |
1711 | *final_types[4] = R_CODE_EXPR; | |
1712 | final_types[5] = NULL; | |
1713 | break; | |
1714 | } | |
1715 | else | |
1716 | break; | |
1717 | ||
1718 | case R_HPPA_NONE: | |
1719 | case R_HPPA_ABS_CALL: | |
252b5132 RH |
1720 | /* Right now we can default all these. */ |
1721 | break; | |
2667095f JL |
1722 | |
1723 | case R_HPPA_PCREL_CALL: | |
1724 | { | |
1725 | #ifndef NO_PCREL_MODES | |
1726 | /* If we have short and long pcrel modes, then generate the proper | |
1727 | mode selector, then the pcrel relocation. Redundant selectors | |
7dee875e | 1728 | will be eliminated as the relocs are sized and emitted. */ |
dc810e39 AM |
1729 | bfd_size_type amt = sizeof (int); |
1730 | final_types[0] = (int *) bfd_alloc (abfd, amt); | |
2667095f JL |
1731 | if (!final_types[0]) |
1732 | return NULL; | |
1733 | if (format == 17) | |
1734 | *final_types[0] = R_SHORT_PCREL_MODE; | |
1735 | else | |
1736 | *final_types[0] = R_LONG_PCREL_MODE; | |
1737 | final_types[1] = final_type; | |
1738 | final_types[2] = NULL; | |
1739 | *final_type = base_type; | |
1740 | #endif | |
1741 | break; | |
1742 | } | |
252b5132 RH |
1743 | } |
1744 | return final_types; | |
1745 | } | |
1746 | ||
1747 | /* Return the address of the correct entry in the PA SOM relocation | |
1748 | howto table. */ | |
1749 | ||
252b5132 RH |
1750 | static reloc_howto_type * |
1751 | som_bfd_reloc_type_lookup (abfd, code) | |
7dca057b | 1752 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1753 | bfd_reloc_code_real_type code; |
1754 | { | |
1755 | if ((int) code < (int) R_NO_RELOCATION + 255) | |
1756 | { | |
1757 | BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code); | |
1758 | return &som_hppa_howto_table[(int) code]; | |
1759 | } | |
1760 | ||
1761 | return (reloc_howto_type *) 0; | |
1762 | } | |
1763 | ||
1764 | /* Perform some initialization for an object. Save results of this | |
1765 | initialization in the BFD. */ | |
1766 | ||
1767 | static const bfd_target * | |
1768 | som_object_setup (abfd, file_hdrp, aux_hdrp, current_offset) | |
1769 | bfd *abfd; | |
1770 | struct header *file_hdrp; | |
1771 | struct som_exec_auxhdr *aux_hdrp; | |
1772 | unsigned long current_offset; | |
1773 | { | |
1774 | asection *section; | |
1775 | int found; | |
1776 | ||
1777 | /* som_mkobject will set bfd_error if som_mkobject fails. */ | |
82e51918 | 1778 | if (! som_mkobject (abfd)) |
252b5132 RH |
1779 | return 0; |
1780 | ||
1781 | /* Set BFD flags based on what information is available in the SOM. */ | |
1782 | abfd->flags = BFD_NO_FLAGS; | |
1783 | if (file_hdrp->symbol_total) | |
1784 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; | |
1785 | ||
1786 | switch (file_hdrp->a_magic) | |
1787 | { | |
1788 | case DEMAND_MAGIC: | |
1789 | abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P); | |
1790 | break; | |
1791 | case SHARE_MAGIC: | |
1792 | abfd->flags |= (WP_TEXT | EXEC_P); | |
1793 | break; | |
1794 | case EXEC_MAGIC: | |
1795 | abfd->flags |= (EXEC_P); | |
1796 | break; | |
1797 | case RELOC_MAGIC: | |
1798 | abfd->flags |= HAS_RELOC; | |
1799 | break; | |
1800 | #ifdef SHL_MAGIC | |
1801 | case SHL_MAGIC: | |
1802 | #endif | |
1803 | #ifdef DL_MAGIC | |
1804 | case DL_MAGIC: | |
1805 | #endif | |
1806 | abfd->flags |= DYNAMIC; | |
1807 | break; | |
1808 | ||
1809 | default: | |
1810 | break; | |
1811 | } | |
1812 | ||
1813 | /* Allocate space to hold the saved exec header information. */ | |
1814 | obj_som_exec_data (abfd) = (struct som_exec_data *) | |
dc810e39 | 1815 | bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_exec_data)); |
252b5132 RH |
1816 | if (obj_som_exec_data (abfd) == NULL) |
1817 | return NULL; | |
1818 | ||
1819 | /* The braindamaged OSF1 linker switched exec_flags and exec_entry! | |
1820 | ||
1821 | We used to identify OSF1 binaries based on NEW_VERSION_ID, but | |
1822 | apparently the latest HPUX linker is using NEW_VERSION_ID now. | |
1823 | ||
1824 | It's about time, OSF has used the new id since at least 1992; | |
1825 | HPUX didn't start till nearly 1995!. | |
6fa957a9 | 1826 | |
252b5132 RH |
1827 | The new approach examines the entry field. If it's zero or not 4 |
1828 | byte aligned then it's not a proper code address and we guess it's | |
1829 | really the executable flags. */ | |
1830 | found = 0; | |
1831 | for (section = abfd->sections; section; section = section->next) | |
1832 | { | |
5198ba8b DA |
1833 | bfd_vma entry; |
1834 | ||
252b5132 RH |
1835 | if ((section->flags & SEC_CODE) == 0) |
1836 | continue; | |
5198ba8b DA |
1837 | entry = aux_hdrp->exec_entry; |
1838 | if (entry >= section->vma | |
eea6121a | 1839 | && entry < section->vma + section->size) |
252b5132 RH |
1840 | found = 1; |
1841 | } | |
1842 | if (aux_hdrp->exec_entry == 0 | |
1843 | || (aux_hdrp->exec_entry & 0x3) != 0 | |
1844 | || ! found) | |
1845 | { | |
1846 | bfd_get_start_address (abfd) = aux_hdrp->exec_flags; | |
1847 | obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry; | |
1848 | } | |
1849 | else | |
1850 | { | |
1851 | bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset; | |
1852 | obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags; | |
1853 | } | |
1854 | ||
17617495 JL |
1855 | obj_som_exec_data (abfd)->version_id = file_hdrp->version_id; |
1856 | ||
252b5132 RH |
1857 | bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10); |
1858 | bfd_get_symcount (abfd) = file_hdrp->symbol_total; | |
1859 | ||
6fa957a9 | 1860 | /* Initialize the saved symbol table and string table to NULL. |
252b5132 RH |
1861 | Save important offsets and sizes from the SOM header into |
1862 | the BFD. */ | |
7eae7d22 | 1863 | obj_som_stringtab (abfd) = (char *) NULL; |
252b5132 RH |
1864 | obj_som_symtab (abfd) = (som_symbol_type *) NULL; |
1865 | obj_som_sorted_syms (abfd) = NULL; | |
1866 | obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size; | |
1867 | obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset; | |
1868 | obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location | |
1869 | + current_offset); | |
1870 | obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location | |
1871 | + current_offset); | |
1872 | obj_som_exec_data (abfd)->system_id = file_hdrp->system_id; | |
1873 | ||
1874 | return abfd->xvec; | |
1875 | } | |
1876 | ||
1877 | /* Convert all of the space and subspace info into BFD sections. Each space | |
1878 | contains a number of subspaces, which in turn describe the mapping between | |
1879 | regions of the exec file, and the address space that the program runs in. | |
1880 | BFD sections which correspond to spaces will overlap the sections for the | |
1881 | associated subspaces. */ | |
1882 | ||
b34976b6 | 1883 | static bfd_boolean |
252b5132 RH |
1884 | setup_sections (abfd, file_hdr, current_offset) |
1885 | bfd *abfd; | |
1886 | struct header *file_hdr; | |
1887 | unsigned long current_offset; | |
1888 | { | |
1889 | char *space_strings; | |
1890 | unsigned int space_index, i; | |
1891 | unsigned int total_subspaces = 0; | |
21da9f89 NC |
1892 | asection **subspace_sections = NULL; |
1893 | asection *section; | |
dc810e39 | 1894 | bfd_size_type amt; |
252b5132 | 1895 | |
7eae7d22 | 1896 | /* First, read in space names. */ |
252b5132 | 1897 | |
dc810e39 AM |
1898 | amt = file_hdr->space_strings_size; |
1899 | space_strings = bfd_malloc (amt); | |
1900 | if (!space_strings && amt != 0) | |
252b5132 RH |
1901 | goto error_return; |
1902 | ||
6fa957a9 | 1903 | if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location, |
dc810e39 | 1904 | SEEK_SET) != 0) |
252b5132 | 1905 | goto error_return; |
dc810e39 | 1906 | if (bfd_bread (space_strings, amt, abfd) != amt) |
252b5132 RH |
1907 | goto error_return; |
1908 | ||
7eae7d22 | 1909 | /* Loop over all of the space dictionaries, building up sections. */ |
252b5132 RH |
1910 | for (space_index = 0; space_index < file_hdr->space_total; space_index++) |
1911 | { | |
1912 | struct space_dictionary_record space; | |
351e2b5a | 1913 | struct som_subspace_dictionary_record subspace, save_subspace; |
5198ba8b | 1914 | unsigned int subspace_index; |
252b5132 | 1915 | asection *space_asect; |
404ed0cf | 1916 | bfd_size_type space_size = 0; |
252b5132 RH |
1917 | char *newname; |
1918 | ||
7eae7d22 | 1919 | /* Read the space dictionary element. */ |
252b5132 RH |
1920 | if (bfd_seek (abfd, |
1921 | (current_offset + file_hdr->space_location | |
1922 | + space_index * sizeof space), | |
dc810e39 | 1923 | SEEK_SET) != 0) |
252b5132 | 1924 | goto error_return; |
dc810e39 AM |
1925 | amt = sizeof space; |
1926 | if (bfd_bread (&space, amt, abfd) != amt) | |
252b5132 RH |
1927 | goto error_return; |
1928 | ||
7eae7d22 | 1929 | /* Setup the space name string. */ |
252b5132 RH |
1930 | space.name.n_name = space.name.n_strx + space_strings; |
1931 | ||
7eae7d22 | 1932 | /* Make a section out of it. */ |
dc810e39 AM |
1933 | amt = strlen (space.name.n_name) + 1; |
1934 | newname = bfd_alloc (abfd, amt); | |
252b5132 RH |
1935 | if (!newname) |
1936 | goto error_return; | |
1937 | strcpy (newname, space.name.n_name); | |
6fa957a9 | 1938 | |
252b5132 RH |
1939 | space_asect = bfd_make_section_anyway (abfd, newname); |
1940 | if (!space_asect) | |
1941 | goto error_return; | |
1942 | ||
7eae7d22 | 1943 | if (space.is_loadable == 0) |
252b5132 RH |
1944 | space_asect->flags |= SEC_DEBUGGING; |
1945 | ||
1946 | /* Set up all the attributes for the space. */ | |
82e51918 AM |
1947 | if (! bfd_som_set_section_attributes (space_asect, space.is_defined, |
1948 | space.is_private, space.sort_key, | |
1949 | space.space_number)) | |
252b5132 RH |
1950 | goto error_return; |
1951 | ||
1952 | /* If the space has no subspaces, then we're done. */ | |
1953 | if (space.subspace_quantity == 0) | |
1954 | continue; | |
1955 | ||
7eae7d22 | 1956 | /* Now, read in the first subspace for this space. */ |
252b5132 RH |
1957 | if (bfd_seek (abfd, |
1958 | (current_offset + file_hdr->subspace_location | |
1959 | + space.subspace_index * sizeof subspace), | |
dc810e39 | 1960 | SEEK_SET) != 0) |
252b5132 | 1961 | goto error_return; |
dc810e39 AM |
1962 | amt = sizeof subspace; |
1963 | if (bfd_bread (&subspace, amt, abfd) != amt) | |
252b5132 | 1964 | goto error_return; |
7eae7d22 | 1965 | /* Seek back to the start of the subspaces for loop below. */ |
252b5132 RH |
1966 | if (bfd_seek (abfd, |
1967 | (current_offset + file_hdr->subspace_location | |
1968 | + space.subspace_index * sizeof subspace), | |
dc810e39 | 1969 | SEEK_SET) != 0) |
252b5132 RH |
1970 | goto error_return; |
1971 | ||
7eae7d22 | 1972 | /* Setup the start address and file loc from the first subspace |
b34976b6 | 1973 | record. */ |
252b5132 RH |
1974 | space_asect->vma = subspace.subspace_start; |
1975 | space_asect->filepos = subspace.file_loc_init_value + current_offset; | |
a99cf92b | 1976 | space_asect->alignment_power = exact_log2 (subspace.alignment); |
dc810e39 | 1977 | if (space_asect->alignment_power == (unsigned) -1) |
252b5132 RH |
1978 | goto error_return; |
1979 | ||
1980 | /* Initialize save_subspace so we can reliably determine if this | |
1981 | loop placed any useful values into it. */ | |
351e2b5a | 1982 | memset (&save_subspace, 0, sizeof (save_subspace)); |
252b5132 | 1983 | |
7eae7d22 | 1984 | /* Loop over the rest of the subspaces, building up more sections. */ |
252b5132 RH |
1985 | for (subspace_index = 0; subspace_index < space.subspace_quantity; |
1986 | subspace_index++) | |
1987 | { | |
1988 | asection *subspace_asect; | |
1989 | ||
7eae7d22 | 1990 | /* Read in the next subspace. */ |
dc810e39 AM |
1991 | amt = sizeof subspace; |
1992 | if (bfd_bread (&subspace, amt, abfd) != amt) | |
252b5132 RH |
1993 | goto error_return; |
1994 | ||
7eae7d22 | 1995 | /* Setup the subspace name string. */ |
252b5132 RH |
1996 | subspace.name.n_name = subspace.name.n_strx + space_strings; |
1997 | ||
dc810e39 AM |
1998 | amt = strlen (subspace.name.n_name) + 1; |
1999 | newname = bfd_alloc (abfd, amt); | |
252b5132 RH |
2000 | if (!newname) |
2001 | goto error_return; | |
2002 | strcpy (newname, subspace.name.n_name); | |
2003 | ||
7eae7d22 | 2004 | /* Make a section out of this subspace. */ |
252b5132 RH |
2005 | subspace_asect = bfd_make_section_anyway (abfd, newname); |
2006 | if (!subspace_asect) | |
2007 | goto error_return; | |
2008 | ||
2009 | /* Store private information about the section. */ | |
82e51918 AM |
2010 | if (! bfd_som_set_subsection_attributes (subspace_asect, space_asect, |
2011 | subspace.access_control_bits, | |
2012 | subspace.sort_key, | |
351e2b5a DA |
2013 | subspace.quadrant, |
2014 | subspace.is_comdat, | |
2015 | subspace.is_common, | |
2016 | subspace.dup_common)) | |
252b5132 RH |
2017 | goto error_return; |
2018 | ||
6fa957a9 | 2019 | /* Keep an easy mapping between subspaces and sections. |
252b5132 RH |
2020 | Note we do not necessarily read the subspaces in the |
2021 | same order in which they appear in the object file. | |
2022 | ||
2023 | So to make the target index come out correctly, we | |
2024 | store the location of the subspace header in target | |
2025 | index, then sort using the location of the subspace | |
2026 | header as the key. Then we can assign correct | |
2027 | subspace indices. */ | |
2028 | total_subspaces++; | |
2029 | subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace); | |
2030 | ||
2031 | /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified | |
2032 | by the access_control_bits in the subspace header. */ | |
2033 | switch (subspace.access_control_bits >> 4) | |
2034 | { | |
6fa957a9 | 2035 | /* Readonly data. */ |
252b5132 RH |
2036 | case 0x0: |
2037 | subspace_asect->flags |= SEC_DATA | SEC_READONLY; | |
2038 | break; | |
2039 | ||
6fa957a9 | 2040 | /* Normal data. */ |
252b5132 RH |
2041 | case 0x1: |
2042 | subspace_asect->flags |= SEC_DATA; | |
2043 | break; | |
2044 | ||
2045 | /* Readonly code and the gateways. | |
2046 | Gateways have other attributes which do not map | |
2047 | into anything BFD knows about. */ | |
2048 | case 0x2: | |
2049 | case 0x4: | |
2050 | case 0x5: | |
2051 | case 0x6: | |
2052 | case 0x7: | |
2053 | subspace_asect->flags |= SEC_CODE | SEC_READONLY; | |
2054 | break; | |
2055 | ||
2056 | /* dynamic (writable) code. */ | |
2057 | case 0x3: | |
2058 | subspace_asect->flags |= SEC_CODE; | |
2059 | break; | |
2060 | } | |
6fa957a9 | 2061 | |
351e2b5a DA |
2062 | if (subspace.is_comdat || subspace.is_common || subspace.dup_common) |
2063 | subspace_asect->flags |= SEC_LINK_ONCE; | |
2064 | ||
2065 | if (subspace.subspace_length > 0) | |
252b5132 RH |
2066 | subspace_asect->flags |= SEC_HAS_CONTENTS; |
2067 | ||
2068 | if (subspace.is_loadable) | |
2069 | subspace_asect->flags |= SEC_ALLOC | SEC_LOAD; | |
2070 | else | |
2071 | subspace_asect->flags |= SEC_DEBUGGING; | |
2072 | ||
2073 | if (subspace.code_only) | |
2074 | subspace_asect->flags |= SEC_CODE; | |
2075 | ||
2076 | /* Both file_loc_init_value and initialization_length will | |
2077 | be zero for a BSS like subspace. */ | |
2078 | if (subspace.file_loc_init_value == 0 | |
2079 | && subspace.initialization_length == 0) | |
2080 | subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS); | |
2081 | ||
2082 | /* This subspace has relocations. | |
2083 | The fixup_request_quantity is a byte count for the number of | |
2084 | entries in the relocation stream; it is not the actual number | |
2085 | of relocations in the subspace. */ | |
2086 | if (subspace.fixup_request_quantity != 0) | |
2087 | { | |
2088 | subspace_asect->flags |= SEC_RELOC; | |
2089 | subspace_asect->rel_filepos = subspace.fixup_request_index; | |
2090 | som_section_data (subspace_asect)->reloc_size | |
2091 | = subspace.fixup_request_quantity; | |
6fa957a9 | 2092 | /* We can not determine this yet. When we read in the |
252b5132 | 2093 | relocation table the correct value will be filled in. */ |
dc810e39 | 2094 | subspace_asect->reloc_count = (unsigned) -1; |
252b5132 RH |
2095 | } |
2096 | ||
2097 | /* Update save_subspace if appropriate. */ | |
2098 | if (subspace.file_loc_init_value > save_subspace.file_loc_init_value) | |
2099 | save_subspace = subspace; | |
2100 | ||
2101 | subspace_asect->vma = subspace.subspace_start; | |
eea6121a | 2102 | subspace_asect->size = subspace.subspace_length; |
252b5132 RH |
2103 | subspace_asect->filepos = (subspace.file_loc_init_value |
2104 | + current_offset); | |
a99cf92b | 2105 | subspace_asect->alignment_power = exact_log2 (subspace.alignment); |
dc810e39 | 2106 | if (subspace_asect->alignment_power == (unsigned) -1) |
252b5132 | 2107 | goto error_return; |
404ed0cf DA |
2108 | |
2109 | /* Keep track of the accumulated sizes of the sections. */ | |
2110 | space_size += subspace.subspace_length; | |
252b5132 RH |
2111 | } |
2112 | ||
2113 | /* This can happen for a .o which defines symbols in otherwise | |
b34976b6 | 2114 | empty subspaces. */ |
252b5132 | 2115 | if (!save_subspace.file_loc_init_value) |
eea6121a | 2116 | space_asect->size = 0; |
252b5132 | 2117 | else |
404ed0cf DA |
2118 | { |
2119 | if (file_hdr->a_magic != RELOC_MAGIC) | |
2120 | { | |
2121 | /* Setup the size for the space section based upon the info | |
2122 | in the last subspace of the space. */ | |
2123 | space_asect->size = (save_subspace.subspace_start | |
2124 | - space_asect->vma | |
2125 | + save_subspace.subspace_length); | |
2126 | } | |
2127 | else | |
2128 | { | |
2129 | /* The subspace_start field is not initialised in relocatable | |
2130 | only objects, so it cannot be used for length calculations. | |
2131 | Instead we use the space_size value which we have been | |
2132 | accumulating. This isn't an accurate estimate since it | |
2133 | ignores alignment and ordering issues. */ | |
2134 | space_asect->size = space_size; | |
2135 | } | |
2136 | } | |
252b5132 RH |
2137 | } |
2138 | /* Now that we've read in all the subspace records, we need to assign | |
2139 | a target index to each subspace. */ | |
dc810e39 AM |
2140 | amt = total_subspaces; |
2141 | amt *= sizeof (asection *); | |
2142 | subspace_sections = (asection **) bfd_malloc (amt); | |
252b5132 RH |
2143 | if (subspace_sections == NULL) |
2144 | goto error_return; | |
2145 | ||
2146 | for (i = 0, section = abfd->sections; section; section = section->next) | |
2147 | { | |
2148 | if (!som_is_subspace (section)) | |
2149 | continue; | |
2150 | ||
2151 | subspace_sections[i] = section; | |
2152 | i++; | |
2153 | } | |
2154 | qsort (subspace_sections, total_subspaces, | |
2155 | sizeof (asection *), compare_subspaces); | |
6fa957a9 | 2156 | |
252b5132 RH |
2157 | /* subspace_sections is now sorted in the order in which the subspaces |
2158 | appear in the object file. Assign an index to each one now. */ | |
2159 | for (i = 0; i < total_subspaces; i++) | |
2160 | subspace_sections[i]->target_index = i; | |
2161 | ||
2162 | if (space_strings != NULL) | |
2163 | free (space_strings); | |
2164 | ||
2165 | if (subspace_sections != NULL) | |
2166 | free (subspace_sections); | |
2167 | ||
b34976b6 | 2168 | return TRUE; |
252b5132 RH |
2169 | |
2170 | error_return: | |
2171 | if (space_strings != NULL) | |
2172 | free (space_strings); | |
2173 | ||
2174 | if (subspace_sections != NULL) | |
2175 | free (subspace_sections); | |
b34976b6 | 2176 | return FALSE; |
252b5132 RH |
2177 | } |
2178 | ||
2179 | /* Read in a SOM object and make it into a BFD. */ | |
2180 | ||
2181 | static const bfd_target * | |
2182 | som_object_p (abfd) | |
2183 | bfd *abfd; | |
2184 | { | |
2185 | struct header file_hdr; | |
2186 | struct som_exec_auxhdr aux_hdr; | |
2187 | unsigned long current_offset = 0; | |
2188 | struct lst_header lst_header; | |
2189 | struct som_entry som_entry; | |
dc810e39 | 2190 | bfd_size_type amt; |
6fa957a9 | 2191 | #define ENTRY_SIZE sizeof (struct som_entry) |
252b5132 | 2192 | |
dc810e39 AM |
2193 | amt = FILE_HDR_SIZE; |
2194 | if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt) | |
252b5132 RH |
2195 | { |
2196 | if (bfd_get_error () != bfd_error_system_call) | |
2197 | bfd_set_error (bfd_error_wrong_format); | |
2198 | return 0; | |
2199 | } | |
2200 | ||
2201 | if (!_PA_RISC_ID (file_hdr.system_id)) | |
2202 | { | |
2203 | bfd_set_error (bfd_error_wrong_format); | |
2204 | return 0; | |
2205 | } | |
2206 | ||
2207 | switch (file_hdr.a_magic) | |
2208 | { | |
2209 | case RELOC_MAGIC: | |
2210 | case EXEC_MAGIC: | |
2211 | case SHARE_MAGIC: | |
2212 | case DEMAND_MAGIC: | |
2213 | #ifdef DL_MAGIC | |
2214 | case DL_MAGIC: | |
2215 | #endif | |
2216 | #ifdef SHL_MAGIC | |
2217 | case SHL_MAGIC: | |
2218 | #endif | |
2219 | #ifdef SHARED_MAGIC_CNX | |
2220 | case SHARED_MAGIC_CNX: | |
2221 | #endif | |
2222 | break; | |
2223 | ||
2224 | #ifdef EXECLIBMAGIC | |
2225 | case EXECLIBMAGIC: | |
7eae7d22 | 2226 | /* Read the lst header and determine where the SOM directory begins. */ |
252b5132 | 2227 | |
dc810e39 | 2228 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
7eae7d22 KH |
2229 | { |
2230 | if (bfd_get_error () != bfd_error_system_call) | |
252b5132 | 2231 | bfd_set_error (bfd_error_wrong_format); |
7eae7d22 KH |
2232 | return 0; |
2233 | } | |
252b5132 | 2234 | |
dc810e39 AM |
2235 | amt = SLSTHDR; |
2236 | if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt) | |
7eae7d22 KH |
2237 | { |
2238 | if (bfd_get_error () != bfd_error_system_call) | |
252b5132 | 2239 | bfd_set_error (bfd_error_wrong_format); |
7eae7d22 KH |
2240 | return 0; |
2241 | } | |
252b5132 | 2242 | |
7eae7d22 | 2243 | /* Position to and read the first directory entry. */ |
252b5132 | 2244 | |
dc810e39 | 2245 | if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) != 0) |
7eae7d22 KH |
2246 | { |
2247 | if (bfd_get_error () != bfd_error_system_call) | |
252b5132 | 2248 | bfd_set_error (bfd_error_wrong_format); |
7eae7d22 KH |
2249 | return 0; |
2250 | } | |
252b5132 | 2251 | |
dc810e39 AM |
2252 | amt = ENTRY_SIZE; |
2253 | if (bfd_bread ((PTR) &som_entry, amt, abfd) != amt) | |
7eae7d22 KH |
2254 | { |
2255 | if (bfd_get_error () != bfd_error_system_call) | |
252b5132 | 2256 | bfd_set_error (bfd_error_wrong_format); |
7eae7d22 KH |
2257 | return 0; |
2258 | } | |
252b5132 | 2259 | |
7eae7d22 | 2260 | /* Now position to the first SOM. */ |
252b5132 | 2261 | |
dc810e39 | 2262 | if (bfd_seek (abfd, som_entry.location, SEEK_SET) != 0) |
7eae7d22 KH |
2263 | { |
2264 | if (bfd_get_error () != bfd_error_system_call) | |
252b5132 | 2265 | bfd_set_error (bfd_error_wrong_format); |
7eae7d22 KH |
2266 | return 0; |
2267 | } | |
252b5132 RH |
2268 | |
2269 | current_offset = som_entry.location; | |
2270 | ||
7eae7d22 | 2271 | /* And finally, re-read the som header. */ |
dc810e39 AM |
2272 | amt = FILE_HDR_SIZE; |
2273 | if (bfd_bread ((PTR) &file_hdr, amt, abfd) != amt) | |
7eae7d22 KH |
2274 | { |
2275 | if (bfd_get_error () != bfd_error_system_call) | |
252b5132 | 2276 | bfd_set_error (bfd_error_wrong_format); |
7eae7d22 KH |
2277 | return 0; |
2278 | } | |
252b5132 RH |
2279 | |
2280 | break; | |
2281 | #endif | |
2282 | ||
2283 | default: | |
2284 | bfd_set_error (bfd_error_wrong_format); | |
2285 | return 0; | |
2286 | } | |
2287 | ||
2288 | if (file_hdr.version_id != VERSION_ID | |
2289 | && file_hdr.version_id != NEW_VERSION_ID) | |
2290 | { | |
2291 | bfd_set_error (bfd_error_wrong_format); | |
2292 | return 0; | |
2293 | } | |
2294 | ||
2295 | /* If the aux_header_size field in the file header is zero, then this | |
2296 | object is an incomplete executable (a .o file). Do not try to read | |
2297 | a non-existant auxiliary header. */ | |
2298 | memset (&aux_hdr, 0, sizeof (struct som_exec_auxhdr)); | |
2299 | if (file_hdr.aux_header_size != 0) | |
2300 | { | |
dc810e39 AM |
2301 | amt = AUX_HDR_SIZE; |
2302 | if (bfd_bread ((PTR) &aux_hdr, amt, abfd) != amt) | |
252b5132 RH |
2303 | { |
2304 | if (bfd_get_error () != bfd_error_system_call) | |
2305 | bfd_set_error (bfd_error_wrong_format); | |
2306 | return 0; | |
2307 | } | |
2308 | } | |
2309 | ||
2310 | if (!setup_sections (abfd, &file_hdr, current_offset)) | |
2311 | { | |
2312 | /* setup_sections does not bubble up a bfd error code. */ | |
2313 | bfd_set_error (bfd_error_bad_value); | |
2314 | return 0; | |
2315 | } | |
2316 | ||
2317 | /* This appears to be a valid SOM object. Do some initialization. */ | |
2318 | return som_object_setup (abfd, &file_hdr, &aux_hdr, current_offset); | |
2319 | } | |
2320 | ||
2321 | /* Create a SOM object. */ | |
2322 | ||
b34976b6 | 2323 | static bfd_boolean |
252b5132 RH |
2324 | som_mkobject (abfd) |
2325 | bfd *abfd; | |
2326 | { | |
2327 | /* Allocate memory to hold backend information. */ | |
2328 | abfd->tdata.som_data = (struct som_data_struct *) | |
dc810e39 | 2329 | bfd_zalloc (abfd, (bfd_size_type) sizeof (struct som_data_struct)); |
252b5132 | 2330 | if (abfd->tdata.som_data == NULL) |
b34976b6 AM |
2331 | return FALSE; |
2332 | return TRUE; | |
252b5132 RH |
2333 | } |
2334 | ||
2335 | /* Initialize some information in the file header. This routine makes | |
2336 | not attempt at doing the right thing for a full executable; it | |
2337 | is only meant to handle relocatable objects. */ | |
2338 | ||
b34976b6 | 2339 | static bfd_boolean |
252b5132 RH |
2340 | som_prep_headers (abfd) |
2341 | bfd *abfd; | |
2342 | { | |
2343 | struct header *file_hdr; | |
2344 | asection *section; | |
dc810e39 | 2345 | bfd_size_type amt = sizeof (struct header); |
252b5132 RH |
2346 | |
2347 | /* Make and attach a file header to the BFD. */ | |
dc810e39 | 2348 | file_hdr = (struct header *) bfd_zalloc (abfd, amt); |
252b5132 | 2349 | if (file_hdr == NULL) |
b34976b6 | 2350 | return FALSE; |
252b5132 RH |
2351 | obj_som_file_hdr (abfd) = file_hdr; |
2352 | ||
2353 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
2354 | { | |
252b5132 | 2355 | /* Make and attach an exec header to the BFD. */ |
dc810e39 AM |
2356 | amt = sizeof (struct som_exec_auxhdr); |
2357 | obj_som_exec_hdr (abfd) = | |
2358 | (struct som_exec_auxhdr *) bfd_zalloc (abfd, amt); | |
252b5132 | 2359 | if (obj_som_exec_hdr (abfd) == NULL) |
b34976b6 | 2360 | return FALSE; |
252b5132 RH |
2361 | |
2362 | if (abfd->flags & D_PAGED) | |
2363 | file_hdr->a_magic = DEMAND_MAGIC; | |
2364 | else if (abfd->flags & WP_TEXT) | |
2365 | file_hdr->a_magic = SHARE_MAGIC; | |
2366 | #ifdef SHL_MAGIC | |
2367 | else if (abfd->flags & DYNAMIC) | |
2368 | file_hdr->a_magic = SHL_MAGIC; | |
2369 | #endif | |
2370 | else | |
2371 | file_hdr->a_magic = EXEC_MAGIC; | |
2372 | } | |
2373 | else | |
2374 | file_hdr->a_magic = RELOC_MAGIC; | |
2375 | ||
252b5132 RH |
2376 | /* These fields are optional, and embedding timestamps is not always |
2377 | a wise thing to do, it makes comparing objects during a multi-stage | |
2378 | bootstrap difficult. */ | |
2379 | file_hdr->file_time.secs = 0; | |
6fa957a9 | 2380 | file_hdr->file_time.nanosecs = 0; |
252b5132 RH |
2381 | |
2382 | file_hdr->entry_space = 0; | |
2383 | file_hdr->entry_subspace = 0; | |
2384 | file_hdr->entry_offset = 0; | |
2385 | file_hdr->presumed_dp = 0; | |
2386 | ||
2387 | /* Now iterate over the sections translating information from | |
2388 | BFD sections to SOM spaces/subspaces. */ | |
2389 | ||
2390 | for (section = abfd->sections; section != NULL; section = section->next) | |
2391 | { | |
2392 | /* Ignore anything which has not been marked as a space or | |
2393 | subspace. */ | |
2394 | if (!som_is_space (section) && !som_is_subspace (section)) | |
2395 | continue; | |
6fa957a9 | 2396 | |
252b5132 RH |
2397 | if (som_is_space (section)) |
2398 | { | |
2399 | /* Allocate space for the space dictionary. */ | |
dc810e39 | 2400 | amt = sizeof (struct space_dictionary_record); |
7eae7d22 | 2401 | som_section_data (section)->space_dict = |
dc810e39 | 2402 | (struct space_dictionary_record *) bfd_zalloc (abfd, amt); |
252b5132 | 2403 | if (som_section_data (section)->space_dict == NULL) |
b34976b6 | 2404 | return FALSE; |
252b5132 RH |
2405 | /* Set space attributes. Note most attributes of SOM spaces |
2406 | are set based on the subspaces it contains. */ | |
2407 | som_section_data (section)->space_dict->loader_fix_index = -1; | |
2408 | som_section_data (section)->space_dict->init_pointer_index = -1; | |
2409 | ||
2410 | /* Set more attributes that were stuffed away in private data. */ | |
6fa957a9 | 2411 | som_section_data (section)->space_dict->sort_key = |
252b5132 | 2412 | som_section_data (section)->copy_data->sort_key; |
6fa957a9 | 2413 | som_section_data (section)->space_dict->is_defined = |
252b5132 | 2414 | som_section_data (section)->copy_data->is_defined; |
6fa957a9 | 2415 | som_section_data (section)->space_dict->is_private = |
252b5132 RH |
2416 | som_section_data (section)->copy_data->is_private; |
2417 | som_section_data (section)->space_dict->space_number = | |
2418 | som_section_data (section)->copy_data->space_number; | |
2419 | } | |
2420 | else | |
2421 | { | |
2422 | /* Allocate space for the subspace dictionary. */ | |
351e2b5a | 2423 | amt = sizeof (struct som_subspace_dictionary_record); |
dc810e39 | 2424 | som_section_data (section)->subspace_dict = |
351e2b5a | 2425 | (struct som_subspace_dictionary_record *) bfd_zalloc (abfd, amt); |
252b5132 | 2426 | if (som_section_data (section)->subspace_dict == NULL) |
b34976b6 | 2427 | return FALSE; |
252b5132 RH |
2428 | |
2429 | /* Set subspace attributes. Basic stuff is done here, additional | |
2430 | attributes are filled in later as more information becomes | |
2431 | available. */ | |
252b5132 RH |
2432 | if (section->flags & SEC_ALLOC) |
2433 | som_section_data (section)->subspace_dict->is_loadable = 1; | |
2434 | ||
2435 | if (section->flags & SEC_CODE) | |
2436 | som_section_data (section)->subspace_dict->code_only = 1; | |
2437 | ||
6fa957a9 | 2438 | som_section_data (section)->subspace_dict->subspace_start = |
252b5132 RH |
2439 | section->vma; |
2440 | som_section_data (section)->subspace_dict->subspace_length = | |
eea6121a | 2441 | section->size; |
252b5132 | 2442 | som_section_data (section)->subspace_dict->initialization_length = |
eea6121a | 2443 | section->size; |
6fa957a9 | 2444 | som_section_data (section)->subspace_dict->alignment = |
252b5132 RH |
2445 | 1 << section->alignment_power; |
2446 | ||
2447 | /* Set more attributes that were stuffed away in private data. */ | |
2448 | som_section_data (section)->subspace_dict->sort_key = | |
2449 | som_section_data (section)->copy_data->sort_key; | |
2450 | som_section_data (section)->subspace_dict->access_control_bits = | |
2451 | som_section_data (section)->copy_data->access_control_bits; | |
2452 | som_section_data (section)->subspace_dict->quadrant = | |
2453 | som_section_data (section)->copy_data->quadrant; | |
351e2b5a DA |
2454 | som_section_data (section)->subspace_dict->is_comdat = |
2455 | som_section_data (section)->copy_data->is_comdat; | |
2456 | som_section_data (section)->subspace_dict->is_common = | |
2457 | som_section_data (section)->copy_data->is_common; | |
2458 | som_section_data (section)->subspace_dict->dup_common = | |
2459 | som_section_data (section)->copy_data->dup_common; | |
252b5132 RH |
2460 | } |
2461 | } | |
b34976b6 | 2462 | return TRUE; |
252b5132 RH |
2463 | } |
2464 | ||
b34976b6 | 2465 | /* Return TRUE if the given section is a SOM space, FALSE otherwise. */ |
252b5132 | 2466 | |
b34976b6 | 2467 | static bfd_boolean |
252b5132 RH |
2468 | som_is_space (section) |
2469 | asection *section; | |
2470 | { | |
2471 | /* If no copy data is available, then it's neither a space nor a | |
2472 | subspace. */ | |
2473 | if (som_section_data (section)->copy_data == NULL) | |
b34976b6 | 2474 | return FALSE; |
252b5132 RH |
2475 | |
2476 | /* If the containing space isn't the same as the given section, | |
2477 | then this isn't a space. */ | |
2478 | if (som_section_data (section)->copy_data->container != section | |
2479 | && (som_section_data (section)->copy_data->container->output_section | |
2480 | != section)) | |
b34976b6 | 2481 | return FALSE; |
252b5132 RH |
2482 | |
2483 | /* OK. Must be a space. */ | |
b34976b6 | 2484 | return TRUE; |
252b5132 RH |
2485 | } |
2486 | ||
b34976b6 | 2487 | /* Return TRUE if the given section is a SOM subspace, FALSE otherwise. */ |
252b5132 | 2488 | |
b34976b6 | 2489 | static bfd_boolean |
252b5132 RH |
2490 | som_is_subspace (section) |
2491 | asection *section; | |
2492 | { | |
2493 | /* If no copy data is available, then it's neither a space nor a | |
2494 | subspace. */ | |
2495 | if (som_section_data (section)->copy_data == NULL) | |
b34976b6 | 2496 | return FALSE; |
252b5132 RH |
2497 | |
2498 | /* If the containing space is the same as the given section, | |
2499 | then this isn't a subspace. */ | |
2500 | if (som_section_data (section)->copy_data->container == section | |
2501 | || (som_section_data (section)->copy_data->container->output_section | |
2502 | == section)) | |
b34976b6 | 2503 | return FALSE; |
252b5132 RH |
2504 | |
2505 | /* OK. Must be a subspace. */ | |
b34976b6 | 2506 | return TRUE; |
252b5132 RH |
2507 | } |
2508 | ||
7dee875e | 2509 | /* Return TRUE if the given space contains the given subspace. It |
252b5132 RH |
2510 | is safe to assume space really is a space, and subspace really |
2511 | is a subspace. */ | |
2512 | ||
b34976b6 | 2513 | static bfd_boolean |
252b5132 RH |
2514 | som_is_container (space, subspace) |
2515 | asection *space, *subspace; | |
2516 | { | |
2517 | return (som_section_data (subspace)->copy_data->container == space | |
2518 | || (som_section_data (subspace)->copy_data->container->output_section | |
2519 | == space)); | |
2520 | } | |
2521 | ||
2522 | /* Count and return the number of spaces attached to the given BFD. */ | |
2523 | ||
2524 | static unsigned long | |
2525 | som_count_spaces (abfd) | |
2526 | bfd *abfd; | |
2527 | { | |
2528 | int count = 0; | |
2529 | asection *section; | |
2530 | ||
2531 | for (section = abfd->sections; section != NULL; section = section->next) | |
7eae7d22 | 2532 | count += som_is_space (section); |
252b5132 RH |
2533 | |
2534 | return count; | |
2535 | } | |
2536 | ||
2537 | /* Count the number of subspaces attached to the given BFD. */ | |
2538 | ||
2539 | static unsigned long | |
2540 | som_count_subspaces (abfd) | |
2541 | bfd *abfd; | |
2542 | { | |
2543 | int count = 0; | |
2544 | asection *section; | |
2545 | ||
2546 | for (section = abfd->sections; section != NULL; section = section->next) | |
2547 | count += som_is_subspace (section); | |
2548 | ||
2549 | return count; | |
2550 | } | |
2551 | ||
2552 | /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2. | |
2553 | ||
2554 | We desire symbols to be ordered starting with the symbol with the | |
2555 | highest relocation count down to the symbol with the lowest relocation | |
2556 | count. Doing so compacts the relocation stream. */ | |
2557 | ||
2558 | static int | |
2559 | compare_syms (arg1, arg2) | |
2560 | const PTR arg1; | |
2561 | const PTR arg2; | |
2562 | ||
2563 | { | |
2564 | asymbol **sym1 = (asymbol **) arg1; | |
2565 | asymbol **sym2 = (asymbol **) arg2; | |
2566 | unsigned int count1, count2; | |
6fa957a9 | 2567 | |
252b5132 RH |
2568 | /* Get relocation count for each symbol. Note that the count |
2569 | is stored in the udata pointer for section symbols! */ | |
2570 | if ((*sym1)->flags & BSF_SECTION_SYM) | |
2571 | count1 = (*sym1)->udata.i; | |
2572 | else | |
2573 | count1 = som_symbol_data (*sym1)->reloc_count; | |
2574 | ||
2575 | if ((*sym2)->flags & BSF_SECTION_SYM) | |
2576 | count2 = (*sym2)->udata.i; | |
2577 | else | |
2578 | count2 = som_symbol_data (*sym2)->reloc_count; | |
2579 | ||
2580 | /* Return the appropriate value. */ | |
2581 | if (count1 < count2) | |
2582 | return 1; | |
2583 | else if (count1 > count2) | |
2584 | return -1; | |
2585 | return 0; | |
2586 | } | |
2587 | ||
2588 | /* Return -1, 0, 1 indicating the relative ordering of subspace1 | |
2589 | and subspace. */ | |
2590 | ||
2591 | static int | |
2592 | compare_subspaces (arg1, arg2) | |
2593 | const PTR arg1; | |
2594 | const PTR arg2; | |
2595 | ||
2596 | { | |
2597 | asection **subspace1 = (asection **) arg1; | |
2598 | asection **subspace2 = (asection **) arg2; | |
6fa957a9 | 2599 | |
252b5132 RH |
2600 | if ((*subspace1)->target_index < (*subspace2)->target_index) |
2601 | return -1; | |
2602 | else if ((*subspace2)->target_index < (*subspace1)->target_index) | |
2603 | return 1; | |
2604 | else | |
2605 | return 0; | |
2606 | } | |
2607 | ||
2608 | /* Perform various work in preparation for emitting the fixup stream. */ | |
2609 | ||
2610 | static void | |
2611 | som_prep_for_fixups (abfd, syms, num_syms) | |
2612 | bfd *abfd; | |
2613 | asymbol **syms; | |
2614 | unsigned long num_syms; | |
2615 | { | |
dc810e39 | 2616 | unsigned long i; |
252b5132 RH |
2617 | asection *section; |
2618 | asymbol **sorted_syms; | |
dc810e39 | 2619 | bfd_size_type amt; |
252b5132 RH |
2620 | |
2621 | /* Most SOM relocations involving a symbol have a length which is | |
2622 | dependent on the index of the symbol. So symbols which are | |
2623 | used often in relocations should have a small index. */ | |
2624 | ||
2625 | /* First initialize the counters for each symbol. */ | |
2626 | for (i = 0; i < num_syms; i++) | |
2627 | { | |
2628 | /* Handle a section symbol; these have no pointers back to the | |
2629 | SOM symbol info. So we just use the udata field to hold the | |
2630 | relocation count. */ | |
2631 | if (som_symbol_data (syms[i]) == NULL | |
2632 | || syms[i]->flags & BSF_SECTION_SYM) | |
2633 | { | |
2634 | syms[i]->flags |= BSF_SECTION_SYM; | |
2635 | syms[i]->udata.i = 0; | |
2636 | } | |
2637 | else | |
2638 | som_symbol_data (syms[i])->reloc_count = 0; | |
2639 | } | |
2640 | ||
2641 | /* Now that the counters are initialized, make a weighted count | |
2642 | of how often a given symbol is used in a relocation. */ | |
2643 | for (section = abfd->sections; section != NULL; section = section->next) | |
2644 | { | |
dc810e39 | 2645 | int j; |
252b5132 RH |
2646 | |
2647 | /* Does this section have any relocations? */ | |
dc810e39 | 2648 | if ((int) section->reloc_count <= 0) |
252b5132 RH |
2649 | continue; |
2650 | ||
2651 | /* Walk through each relocation for this section. */ | |
dc810e39 | 2652 | for (j = 1; j < (int) section->reloc_count; j++) |
252b5132 | 2653 | { |
dc810e39 | 2654 | arelent *reloc = section->orelocation[j]; |
252b5132 RH |
2655 | int scale; |
2656 | ||
2657 | /* A relocation against a symbol in the *ABS* section really | |
2658 | does not have a symbol. Likewise if the symbol isn't associated | |
2659 | with any section. */ | |
2660 | if (reloc->sym_ptr_ptr == NULL | |
2661 | || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section)) | |
2662 | continue; | |
2663 | ||
6fa957a9 | 2664 | /* Scaling to encourage symbols involved in R_DP_RELATIVE |
252b5132 RH |
2665 | and R_CODE_ONE_SYMBOL relocations to come first. These |
2666 | two relocations have single byte versions if the symbol | |
2667 | index is very small. */ | |
2668 | if (reloc->howto->type == R_DP_RELATIVE | |
2669 | || reloc->howto->type == R_CODE_ONE_SYMBOL) | |
2670 | scale = 2; | |
2671 | else | |
2672 | scale = 1; | |
2673 | ||
2674 | /* Handle section symbols by storing the count in the udata | |
2675 | field. It will not be used and the count is very important | |
2676 | for these symbols. */ | |
2677 | if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM) | |
2678 | { | |
2679 | (*reloc->sym_ptr_ptr)->udata.i = | |
2680 | (*reloc->sym_ptr_ptr)->udata.i + scale; | |
2681 | continue; | |
2682 | } | |
2683 | ||
2684 | /* A normal symbol. Increment the count. */ | |
2685 | som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale; | |
2686 | } | |
2687 | } | |
2688 | ||
2689 | /* Sort a copy of the symbol table, rather than the canonical | |
2690 | output symbol table. */ | |
dc810e39 AM |
2691 | amt = num_syms; |
2692 | amt *= sizeof (asymbol *); | |
2693 | sorted_syms = (asymbol **) bfd_zalloc (abfd, amt); | |
252b5132 RH |
2694 | memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *)); |
2695 | qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms); | |
2696 | obj_som_sorted_syms (abfd) = sorted_syms; | |
2697 | ||
2698 | /* Compute the symbol indexes, they will be needed by the relocation | |
2699 | code. */ | |
2700 | for (i = 0; i < num_syms; i++) | |
2701 | { | |
2702 | /* A section symbol. Again, there is no pointer to backend symbol | |
2703 | information, so we reuse the udata field again. */ | |
2704 | if (sorted_syms[i]->flags & BSF_SECTION_SYM) | |
2705 | sorted_syms[i]->udata.i = i; | |
2706 | else | |
7eae7d22 | 2707 | som_symbol_data (sorted_syms[i])->index = i; |
252b5132 RH |
2708 | } |
2709 | } | |
2710 | ||
b34976b6 | 2711 | static bfd_boolean |
252b5132 RH |
2712 | som_write_fixups (abfd, current_offset, total_reloc_sizep) |
2713 | bfd *abfd; | |
2714 | unsigned long current_offset; | |
2715 | unsigned int *total_reloc_sizep; | |
2716 | { | |
2717 | unsigned int i, j; | |
2718 | /* Chunk of memory that we can use as buffer space, then throw | |
2719 | away. */ | |
2720 | unsigned char tmp_space[SOM_TMP_BUFSIZE]; | |
2721 | unsigned char *p; | |
2722 | unsigned int total_reloc_size = 0; | |
2723 | unsigned int subspace_reloc_size = 0; | |
2724 | unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total; | |
2725 | asection *section = abfd->sections; | |
dc810e39 | 2726 | bfd_size_type amt; |
252b5132 RH |
2727 | |
2728 | memset (tmp_space, 0, SOM_TMP_BUFSIZE); | |
2729 | p = tmp_space; | |
2730 | ||
2731 | /* All the fixups for a particular subspace are emitted in a single | |
2732 | stream. All the subspaces for a particular space are emitted | |
2733 | as a single stream. | |
2734 | ||
2735 | So, to get all the locations correct one must iterate through all the | |
2736 | spaces, for each space iterate through its subspaces and output a | |
2737 | fixups stream. */ | |
2738 | for (i = 0; i < num_spaces; i++) | |
2739 | { | |
2740 | asection *subsection; | |
2741 | ||
2742 | /* Find a space. */ | |
2743 | while (!som_is_space (section)) | |
2744 | section = section->next; | |
2745 | ||
2746 | /* Now iterate through each of its subspaces. */ | |
2747 | for (subsection = abfd->sections; | |
2748 | subsection != NULL; | |
2749 | subsection = subsection->next) | |
2750 | { | |
dc810e39 AM |
2751 | int reloc_offset; |
2752 | unsigned int current_rounding_mode; | |
2667095f | 2753 | #ifndef NO_PCREL_MODES |
5198ba8b | 2754 | unsigned int current_call_mode; |
2667095f | 2755 | #endif |
252b5132 RH |
2756 | |
2757 | /* Find a subspace of this space. */ | |
2758 | if (!som_is_subspace (subsection) | |
2759 | || !som_is_container (section, subsection)) | |
2760 | continue; | |
2761 | ||
2762 | /* If this subspace does not have real data, then we are | |
7dee875e | 2763 | finished with it. */ |
252b5132 RH |
2764 | if ((subsection->flags & SEC_HAS_CONTENTS) == 0) |
2765 | { | |
2766 | som_section_data (subsection)->subspace_dict->fixup_request_index | |
2767 | = -1; | |
2768 | continue; | |
2769 | } | |
2770 | ||
2771 | /* This subspace has some relocations. Put the relocation stream | |
2772 | index into the subspace record. */ | |
2773 | som_section_data (subsection)->subspace_dict->fixup_request_index | |
2774 | = total_reloc_size; | |
2775 | ||
6fa957a9 | 2776 | /* To make life easier start over with a clean slate for |
252b5132 RH |
2777 | each subspace. Seek to the start of the relocation stream |
2778 | for this subspace in preparation for writing out its fixup | |
2779 | stream. */ | |
dc810e39 | 2780 | if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) != 0) |
b34976b6 | 2781 | return FALSE; |
252b5132 RH |
2782 | |
2783 | /* Buffer space has already been allocated. Just perform some | |
2784 | initialization here. */ | |
2785 | p = tmp_space; | |
2786 | subspace_reloc_size = 0; | |
2787 | reloc_offset = 0; | |
2788 | som_initialize_reloc_queue (reloc_queue); | |
2789 | current_rounding_mode = R_N_MODE; | |
2667095f JL |
2790 | #ifndef NO_PCREL_MODES |
2791 | current_call_mode = R_SHORT_PCREL_MODE; | |
2792 | #endif | |
252b5132 | 2793 | |
6fa957a9 | 2794 | /* Translate each BFD relocation into one or more SOM |
252b5132 RH |
2795 | relocations. */ |
2796 | for (j = 0; j < subsection->reloc_count; j++) | |
2797 | { | |
2798 | arelent *bfd_reloc = subsection->orelocation[j]; | |
2799 | unsigned int skip; | |
2800 | int sym_num; | |
2801 | ||
6fa957a9 | 2802 | /* Get the symbol number. Remember it's stored in a |
252b5132 RH |
2803 | special place for section symbols. */ |
2804 | if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM) | |
2805 | sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i; | |
2806 | else | |
2807 | sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index; | |
6fa957a9 | 2808 | |
252b5132 RH |
2809 | /* If there is not enough room for the next couple relocations, |
2810 | then dump the current buffer contents now. Also reinitialize | |
6fa957a9 | 2811 | the relocation queue. |
252b5132 RH |
2812 | |
2813 | No single BFD relocation could ever translate into more | |
2814 | than 100 bytes of SOM relocations (20bytes is probably the | |
2815 | upper limit, but leave lots of space for growth). */ | |
2816 | if (p - tmp_space + 100 > SOM_TMP_BUFSIZE) | |
2817 | { | |
dc810e39 AM |
2818 | amt = p - tmp_space; |
2819 | if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt) | |
b34976b6 | 2820 | return FALSE; |
252b5132 RH |
2821 | |
2822 | p = tmp_space; | |
2823 | som_initialize_reloc_queue (reloc_queue); | |
2824 | } | |
2825 | ||
2826 | /* Emit R_NO_RELOCATION fixups to map any bytes which were | |
2827 | skipped. */ | |
2828 | skip = bfd_reloc->address - reloc_offset; | |
2829 | p = som_reloc_skip (abfd, skip, p, | |
2830 | &subspace_reloc_size, reloc_queue); | |
2831 | ||
2832 | /* Update reloc_offset for the next iteration. | |
2833 | ||
2834 | Many relocations do not consume input bytes. They | |
2835 | are markers, or set state necessary to perform some | |
2836 | later relocation. */ | |
2837 | switch (bfd_reloc->howto->type) | |
2838 | { | |
2839 | case R_ENTRY: | |
2840 | case R_ALT_ENTRY: | |
2841 | case R_EXIT: | |
2842 | case R_N_MODE: | |
2843 | case R_S_MODE: | |
2844 | case R_D_MODE: | |
2845 | case R_R_MODE: | |
2846 | case R_FSEL: | |
2847 | case R_LSEL: | |
2848 | case R_RSEL: | |
2849 | case R_COMP1: | |
2850 | case R_COMP2: | |
2851 | case R_BEGIN_BRTAB: | |
2852 | case R_END_BRTAB: | |
2853 | case R_BEGIN_TRY: | |
2854 | case R_END_TRY: | |
2855 | case R_N0SEL: | |
2856 | case R_N1SEL: | |
2667095f JL |
2857 | #ifndef NO_PCREL_MODES |
2858 | case R_SHORT_PCREL_MODE: | |
2859 | case R_LONG_PCREL_MODE: | |
2860 | #endif | |
252b5132 RH |
2861 | reloc_offset = bfd_reloc->address; |
2862 | break; | |
2863 | ||
2864 | default: | |
2865 | reloc_offset = bfd_reloc->address + 4; | |
2866 | break; | |
2867 | } | |
2868 | ||
2869 | /* Now the actual relocation we care about. */ | |
2870 | switch (bfd_reloc->howto->type) | |
2871 | { | |
2872 | case R_PCREL_CALL: | |
2873 | case R_ABS_CALL: | |
2874 | p = som_reloc_call (abfd, p, &subspace_reloc_size, | |
2875 | bfd_reloc, sym_num, reloc_queue); | |
2876 | break; | |
2877 | ||
2878 | case R_CODE_ONE_SYMBOL: | |
2879 | case R_DP_RELATIVE: | |
2880 | /* Account for any addend. */ | |
2881 | if (bfd_reloc->addend) | |
6fa957a9 | 2882 | p = som_reloc_addend (abfd, bfd_reloc->addend, p, |
252b5132 RH |
2883 | &subspace_reloc_size, reloc_queue); |
2884 | ||
2885 | if (sym_num < 0x20) | |
2886 | { | |
2887 | bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p); | |
2888 | subspace_reloc_size += 1; | |
2889 | p += 1; | |
2890 | } | |
2891 | else if (sym_num < 0x100) | |
2892 | { | |
2893 | bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p); | |
2894 | bfd_put_8 (abfd, sym_num, p + 1); | |
2895 | p = try_prev_fixup (abfd, &subspace_reloc_size, p, | |
2896 | 2, reloc_queue); | |
2897 | } | |
2898 | else if (sym_num < 0x10000000) | |
2899 | { | |
2900 | bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p); | |
2901 | bfd_put_8 (abfd, sym_num >> 16, p + 1); | |
dc810e39 | 2902 | bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2); |
252b5132 RH |
2903 | p = try_prev_fixup (abfd, &subspace_reloc_size, |
2904 | p, 4, reloc_queue); | |
2905 | } | |
2906 | else | |
2907 | abort (); | |
2908 | break; | |
2909 | ||
2910 | case R_DATA_ONE_SYMBOL: | |
2911 | case R_DATA_PLABEL: | |
2912 | case R_CODE_PLABEL: | |
2913 | case R_DLT_REL: | |
2914 | /* Account for any addend using R_DATA_OVERRIDE. */ | |
2915 | if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL | |
2916 | && bfd_reloc->addend) | |
6fa957a9 | 2917 | p = som_reloc_addend (abfd, bfd_reloc->addend, p, |
252b5132 RH |
2918 | &subspace_reloc_size, reloc_queue); |
2919 | ||
2920 | if (sym_num < 0x100) | |
2921 | { | |
2922 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2923 | bfd_put_8 (abfd, sym_num, p + 1); | |
2924 | p = try_prev_fixup (abfd, &subspace_reloc_size, p, | |
2925 | 2, reloc_queue); | |
2926 | } | |
2927 | else if (sym_num < 0x10000000) | |
2928 | { | |
2929 | bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p); | |
2930 | bfd_put_8 (abfd, sym_num >> 16, p + 1); | |
dc810e39 | 2931 | bfd_put_16 (abfd, (bfd_vma) sym_num, p + 2); |
252b5132 RH |
2932 | p = try_prev_fixup (abfd, &subspace_reloc_size, |
2933 | p, 4, reloc_queue); | |
2934 | } | |
2935 | else | |
2936 | abort (); | |
2937 | break; | |
2938 | ||
2939 | case R_ENTRY: | |
2940 | { | |
dc810e39 | 2941 | unsigned int tmp; |
252b5132 RH |
2942 | arelent *tmp_reloc = NULL; |
2943 | bfd_put_8 (abfd, R_ENTRY, p); | |
2944 | ||
2945 | /* R_ENTRY relocations have 64 bits of associated | |
2946 | data. Unfortunately the addend field of a bfd | |
2947 | relocation is only 32 bits. So, we split up | |
2948 | the 64bit unwind information and store part in | |
2949 | the R_ENTRY relocation, and the rest in the R_EXIT | |
2950 | relocation. */ | |
2951 | bfd_put_32 (abfd, bfd_reloc->addend, p + 1); | |
6fa957a9 | 2952 | |
252b5132 RH |
2953 | /* Find the next R_EXIT relocation. */ |
2954 | for (tmp = j; tmp < subsection->reloc_count; tmp++) | |
2955 | { | |
7eae7d22 | 2956 | tmp_reloc = subsection->orelocation[tmp]; |
252b5132 RH |
2957 | if (tmp_reloc->howto->type == R_EXIT) |
2958 | break; | |
2959 | } | |
2960 | ||
2961 | if (tmp == subsection->reloc_count) | |
2962 | abort (); | |
2963 | ||
2964 | bfd_put_32 (abfd, tmp_reloc->addend, p + 5); | |
2965 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
2966 | p, 9, reloc_queue); | |
2967 | break; | |
2968 | } | |
6fa957a9 | 2969 | |
252b5132 RH |
2970 | case R_N_MODE: |
2971 | case R_S_MODE: | |
2972 | case R_D_MODE: | |
2973 | case R_R_MODE: | |
2974 | /* If this relocation requests the current rounding | |
2975 | mode, then it is redundant. */ | |
2976 | if (bfd_reloc->howto->type != current_rounding_mode) | |
2977 | { | |
2978 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2979 | subspace_reloc_size += 1; | |
2980 | p += 1; | |
2981 | current_rounding_mode = bfd_reloc->howto->type; | |
2982 | } | |
2983 | break; | |
2984 | ||
2667095f JL |
2985 | #ifndef NO_PCREL_MODES |
2986 | case R_LONG_PCREL_MODE: | |
2987 | case R_SHORT_PCREL_MODE: | |
2988 | if (bfd_reloc->howto->type != current_call_mode) | |
2989 | { | |
2990 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2991 | subspace_reloc_size += 1; | |
2992 | p += 1; | |
2993 | current_call_mode = bfd_reloc->howto->type; | |
2994 | } | |
2995 | break; | |
2996 | #endif | |
2997 | ||
252b5132 RH |
2998 | case R_EXIT: |
2999 | case R_ALT_ENTRY: | |
3000 | case R_FSEL: | |
3001 | case R_LSEL: | |
3002 | case R_RSEL: | |
3003 | case R_BEGIN_BRTAB: | |
3004 | case R_END_BRTAB: | |
3005 | case R_BEGIN_TRY: | |
3006 | case R_N0SEL: | |
3007 | case R_N1SEL: | |
3008 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
3009 | subspace_reloc_size += 1; | |
3010 | p += 1; | |
3011 | break; | |
3012 | ||
3013 | case R_END_TRY: | |
08da05b0 | 3014 | /* The end of an exception handling region. The reloc's |
252b5132 RH |
3015 | addend contains the offset of the exception handling |
3016 | code. */ | |
3017 | if (bfd_reloc->addend == 0) | |
3018 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
3019 | else if (bfd_reloc->addend < 1024) | |
3020 | { | |
3021 | bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p); | |
3022 | bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1); | |
3023 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
3024 | p, 2, reloc_queue); | |
3025 | } | |
3026 | else | |
3027 | { | |
3028 | bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p); | |
3029 | bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1); | |
3030 | bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2); | |
3031 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
3032 | p, 4, reloc_queue); | |
3033 | } | |
3034 | break; | |
6fa957a9 | 3035 | |
252b5132 | 3036 | case R_COMP1: |
6fa957a9 | 3037 | /* The only time we generate R_COMP1, R_COMP2 and |
252b5132 RH |
3038 | R_CODE_EXPR relocs is for the difference of two |
3039 | symbols. Hence we can cheat here. */ | |
3040 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
3041 | bfd_put_8 (abfd, 0x44, p + 1); | |
3042 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
3043 | p, 2, reloc_queue); | |
3044 | break; | |
3045 | ||
3046 | case R_COMP2: | |
6fa957a9 | 3047 | /* The only time we generate R_COMP1, R_COMP2 and |
252b5132 RH |
3048 | R_CODE_EXPR relocs is for the difference of two |
3049 | symbols. Hence we can cheat here. */ | |
3050 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
3051 | bfd_put_8 (abfd, 0x80, p + 1); | |
3052 | bfd_put_8 (abfd, sym_num >> 16, p + 2); | |
dc810e39 | 3053 | bfd_put_16 (abfd, (bfd_vma) sym_num, p + 3); |
252b5132 RH |
3054 | p = try_prev_fixup (abfd, &subspace_reloc_size, |
3055 | p, 5, reloc_queue); | |
3056 | break; | |
3057 | ||
3058 | case R_CODE_EXPR: | |
3059 | case R_DATA_EXPR: | |
6fa957a9 | 3060 | /* The only time we generate R_COMP1, R_COMP2 and |
252b5132 RH |
3061 | R_CODE_EXPR relocs is for the difference of two |
3062 | symbols. Hence we can cheat here. */ | |
3063 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
3064 | subspace_reloc_size += 1; | |
3065 | p += 1; | |
3066 | break; | |
3067 | ||
3068 | /* Put a "R_RESERVED" relocation in the stream if | |
3069 | we hit something we do not understand. The linker | |
3070 | will complain loudly if this ever happens. */ | |
3071 | default: | |
3072 | bfd_put_8 (abfd, 0xff, p); | |
3073 | subspace_reloc_size += 1; | |
3074 | p += 1; | |
3075 | break; | |
3076 | } | |
3077 | } | |
3078 | ||
3079 | /* Last BFD relocation for a subspace has been processed. | |
3080 | Map the rest of the subspace with R_NO_RELOCATION fixups. */ | |
eea6121a | 3081 | p = som_reloc_skip (abfd, subsection->size - reloc_offset, |
252b5132 RH |
3082 | p, &subspace_reloc_size, reloc_queue); |
3083 | ||
3084 | /* Scribble out the relocations. */ | |
dc810e39 AM |
3085 | amt = p - tmp_space; |
3086 | if (bfd_bwrite ((PTR) tmp_space, amt, abfd) != amt) | |
b34976b6 | 3087 | return FALSE; |
252b5132 RH |
3088 | p = tmp_space; |
3089 | ||
3090 | total_reloc_size += subspace_reloc_size; | |
3091 | som_section_data (subsection)->subspace_dict->fixup_request_quantity | |
3092 | = subspace_reloc_size; | |
3093 | } | |
3094 | section = section->next; | |
3095 | } | |
3096 | *total_reloc_sizep = total_reloc_size; | |
b34976b6 | 3097 | return TRUE; |
252b5132 RH |
3098 | } |
3099 | ||
3100 | /* Write out the space/subspace string table. */ | |
3101 | ||
b34976b6 | 3102 | static bfd_boolean |
252b5132 RH |
3103 | som_write_space_strings (abfd, current_offset, string_sizep) |
3104 | bfd *abfd; | |
3105 | unsigned long current_offset; | |
3106 | unsigned int *string_sizep; | |
3107 | { | |
3108 | /* Chunk of memory that we can use as buffer space, then throw | |
3109 | away. */ | |
8681fbcd JL |
3110 | size_t tmp_space_size = SOM_TMP_BUFSIZE; |
3111 | unsigned char *tmp_space = alloca (tmp_space_size); | |
3112 | unsigned char *p = tmp_space; | |
252b5132 RH |
3113 | unsigned int strings_size = 0; |
3114 | asection *section; | |
dc810e39 | 3115 | bfd_size_type amt; |
252b5132 | 3116 | |
252b5132 RH |
3117 | /* Seek to the start of the space strings in preparation for writing |
3118 | them out. */ | |
dc810e39 | 3119 | if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0) |
b34976b6 | 3120 | return FALSE; |
252b5132 RH |
3121 | |
3122 | /* Walk through all the spaces and subspaces (order is not important) | |
3123 | building up and writing string table entries for their names. */ | |
3124 | for (section = abfd->sections; section != NULL; section = section->next) | |
3125 | { | |
8681fbcd | 3126 | size_t length; |
252b5132 RH |
3127 | |
3128 | /* Only work with space/subspaces; avoid any other sections | |
3129 | which might have been made (.text for example). */ | |
3130 | if (!som_is_space (section) && !som_is_subspace (section)) | |
3131 | continue; | |
3132 | ||
3133 | /* Get the length of the space/subspace name. */ | |
3134 | length = strlen (section->name); | |
3135 | ||
3136 | /* If there is not enough room for the next entry, then dump the | |
b34976b6 AM |
3137 | current buffer contents now and maybe allocate a larger |
3138 | buffer. Each entry will take 4 bytes to hold the string | |
3139 | length + the string itself + null terminator. */ | |
8681fbcd | 3140 | if (p - tmp_space + 5 + length > tmp_space_size) |
252b5132 | 3141 | { |
8681fbcd | 3142 | /* Flush buffer before refilling or reallocating. */ |
dc810e39 AM |
3143 | amt = p - tmp_space; |
3144 | if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt) | |
b34976b6 | 3145 | return FALSE; |
8681fbcd JL |
3146 | |
3147 | /* Reallocate if now empty buffer still too small. */ | |
3148 | if (5 + length > tmp_space_size) | |
3149 | { | |
3150 | /* Ensure a minimum growth factor to avoid O(n**2) space | |
b34976b6 AM |
3151 | consumption for n strings. The optimal minimum |
3152 | factor seems to be 2, as no other value can guarantee | |
3153 | wasting less than 50% space. (Note that we cannot | |
3154 | deallocate space allocated by `alloca' without | |
3155 | returning from this function.) The same technique is | |
3156 | used a few more times below when a buffer is | |
3157 | reallocated. */ | |
8681fbcd JL |
3158 | tmp_space_size = MAX (2 * tmp_space_size, 5 + length); |
3159 | tmp_space = alloca (tmp_space_size); | |
3160 | } | |
3161 | ||
3162 | /* Reset to beginning of the (possibly new) buffer space. */ | |
252b5132 RH |
3163 | p = tmp_space; |
3164 | } | |
3165 | ||
3166 | /* First element in a string table entry is the length of the | |
3167 | string. Alignment issues are already handled. */ | |
dc810e39 | 3168 | bfd_put_32 (abfd, (bfd_vma) length, p); |
252b5132 RH |
3169 | p += 4; |
3170 | strings_size += 4; | |
3171 | ||
3172 | /* Record the index in the space/subspace records. */ | |
3173 | if (som_is_space (section)) | |
3174 | som_section_data (section)->space_dict->name.n_strx = strings_size; | |
3175 | else | |
3176 | som_section_data (section)->subspace_dict->name.n_strx = strings_size; | |
3177 | ||
3178 | /* Next comes the string itself + a null terminator. */ | |
3179 | strcpy (p, section->name); | |
3180 | p += length + 1; | |
3181 | strings_size += length + 1; | |
3182 | ||
3183 | /* Always align up to the next word boundary. */ | |
3184 | while (strings_size % 4) | |
3185 | { | |
3186 | bfd_put_8 (abfd, 0, p); | |
3187 | p++; | |
3188 | strings_size++; | |
3189 | } | |
3190 | } | |
3191 | ||
3192 | /* Done with the space/subspace strings. Write out any information | |
3193 | contained in a partial block. */ | |
dc810e39 AM |
3194 | amt = p - tmp_space; |
3195 | if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt) | |
b34976b6 | 3196 | return FALSE; |
252b5132 | 3197 | *string_sizep = strings_size; |
b34976b6 | 3198 | return TRUE; |
252b5132 RH |
3199 | } |
3200 | ||
3201 | /* Write out the symbol string table. */ | |
3202 | ||
b34976b6 | 3203 | static bfd_boolean |
252b5132 RH |
3204 | som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep, |
3205 | compilation_unit) | |
3206 | bfd *abfd; | |
982cfd78 | 3207 | unsigned long current_offset; |
252b5132 RH |
3208 | asymbol **syms; |
3209 | unsigned int num_syms; | |
3210 | unsigned int *string_sizep; | |
3211 | COMPUNIT *compilation_unit; | |
3212 | { | |
3213 | unsigned int i; | |
6fa957a9 | 3214 | |
252b5132 RH |
3215 | /* Chunk of memory that we can use as buffer space, then throw |
3216 | away. */ | |
8681fbcd JL |
3217 | size_t tmp_space_size = SOM_TMP_BUFSIZE; |
3218 | unsigned char *tmp_space = alloca (tmp_space_size); | |
3219 | unsigned char *p = tmp_space; | |
3220 | ||
252b5132 RH |
3221 | unsigned int strings_size = 0; |
3222 | unsigned char *comp[4]; | |
dc810e39 | 3223 | bfd_size_type amt; |
252b5132 RH |
3224 | |
3225 | /* This gets a bit gruesome because of the compilation unit. The | |
3226 | strings within the compilation unit are part of the symbol | |
3227 | strings, but don't have symbol_dictionary entries. So, manually | |
7dee875e | 3228 | write them and update the compilation unit header. On input, the |
252b5132 RH |
3229 | compilation unit header contains local copies of the strings. |
3230 | Move them aside. */ | |
3231 | if (compilation_unit) | |
3232 | { | |
3233 | comp[0] = compilation_unit->name.n_name; | |
3234 | comp[1] = compilation_unit->language_name.n_name; | |
3235 | comp[2] = compilation_unit->product_id.n_name; | |
3236 | comp[3] = compilation_unit->version_id.n_name; | |
3237 | } | |
3238 | ||
252b5132 RH |
3239 | /* Seek to the start of the space strings in preparation for writing |
3240 | them out. */ | |
21d17a58 | 3241 | if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0) |
b34976b6 | 3242 | return FALSE; |
252b5132 RH |
3243 | |
3244 | if (compilation_unit) | |
3245 | { | |
3246 | for (i = 0; i < 4; i++) | |
3247 | { | |
8681fbcd | 3248 | size_t length = strlen (comp[i]); |
252b5132 RH |
3249 | |
3250 | /* If there is not enough room for the next entry, then dump | |
8681fbcd JL |
3251 | the current buffer contents now and maybe allocate a |
3252 | larger buffer. */ | |
3253 | if (p - tmp_space + 5 + length > tmp_space_size) | |
252b5132 | 3254 | { |
6fa957a9 | 3255 | /* Flush buffer before refilling or reallocating. */ |
dc810e39 AM |
3256 | amt = p - tmp_space; |
3257 | if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt) | |
b34976b6 | 3258 | return FALSE; |
8681fbcd JL |
3259 | |
3260 | /* Reallocate if now empty buffer still too small. */ | |
3261 | if (5 + length > tmp_space_size) | |
3262 | { | |
3263 | /* See alloca above for discussion of new size. */ | |
3264 | tmp_space_size = MAX (2 * tmp_space_size, 5 + length); | |
3265 | tmp_space = alloca (tmp_space_size); | |
3266 | } | |
3267 | ||
3268 | /* Reset to beginning of the (possibly new) buffer | |
b34976b6 | 3269 | space. */ |
252b5132 RH |
3270 | p = tmp_space; |
3271 | } | |
3272 | ||
3273 | /* First element in a string table entry is the length of | |
3274 | the string. This must always be 4 byte aligned. This is | |
3275 | also an appropriate time to fill in the string index | |
3276 | field in the symbol table entry. */ | |
dc810e39 | 3277 | bfd_put_32 (abfd, (bfd_vma) length, p); |
252b5132 RH |
3278 | strings_size += 4; |
3279 | p += 4; | |
3280 | ||
3281 | /* Next comes the string itself + a null terminator. */ | |
3282 | strcpy (p, comp[i]); | |
3283 | ||
3284 | switch (i) | |
3285 | { | |
6fa957a9 | 3286 | case 0: |
252b5132 RH |
3287 | obj_som_compilation_unit (abfd)->name.n_strx = strings_size; |
3288 | break; | |
3289 | case 1: | |
6fa957a9 | 3290 | obj_som_compilation_unit (abfd)->language_name.n_strx = |
252b5132 RH |
3291 | strings_size; |
3292 | break; | |
3293 | case 2: | |
6fa957a9 | 3294 | obj_som_compilation_unit (abfd)->product_id.n_strx = |
252b5132 RH |
3295 | strings_size; |
3296 | break; | |
3297 | case 3: | |
6fa957a9 | 3298 | obj_som_compilation_unit (abfd)->version_id.n_strx = |
252b5132 RH |
3299 | strings_size; |
3300 | break; | |
3301 | } | |
3302 | ||
3303 | p += length + 1; | |
3304 | strings_size += length + 1; | |
3305 | ||
3306 | /* Always align up to the next word boundary. */ | |
3307 | while (strings_size % 4) | |
3308 | { | |
3309 | bfd_put_8 (abfd, 0, p); | |
3310 | strings_size++; | |
3311 | p++; | |
3312 | } | |
3313 | } | |
3314 | } | |
3315 | ||
3316 | for (i = 0; i < num_syms; i++) | |
3317 | { | |
8681fbcd | 3318 | size_t length = strlen (syms[i]->name); |
252b5132 RH |
3319 | |
3320 | /* If there is not enough room for the next entry, then dump the | |
8681fbcd JL |
3321 | current buffer contents now and maybe allocate a larger buffer. */ |
3322 | if (p - tmp_space + 5 + length > tmp_space_size) | |
252b5132 | 3323 | { |
6fa957a9 | 3324 | /* Flush buffer before refilling or reallocating. */ |
dc810e39 AM |
3325 | amt = p - tmp_space; |
3326 | if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt) | |
b34976b6 | 3327 | return FALSE; |
8681fbcd JL |
3328 | |
3329 | /* Reallocate if now empty buffer still too small. */ | |
3330 | if (5 + length > tmp_space_size) | |
3331 | { | |
3332 | /* See alloca above for discussion of new size. */ | |
3333 | tmp_space_size = MAX (2 * tmp_space_size, 5 + length); | |
3334 | tmp_space = alloca (tmp_space_size); | |
3335 | } | |
3336 | ||
3337 | /* Reset to beginning of the (possibly new) buffer space. */ | |
252b5132 RH |
3338 | p = tmp_space; |
3339 | } | |
3340 | ||
3341 | /* First element in a string table entry is the length of the | |
3342 | string. This must always be 4 byte aligned. This is also | |
3343 | an appropriate time to fill in the string index field in the | |
3344 | symbol table entry. */ | |
dc810e39 | 3345 | bfd_put_32 (abfd, (bfd_vma) length, p); |
252b5132 RH |
3346 | strings_size += 4; |
3347 | p += 4; | |
3348 | ||
3349 | /* Next comes the string itself + a null terminator. */ | |
3350 | strcpy (p, syms[i]->name); | |
3351 | ||
7eae7d22 | 3352 | som_symbol_data (syms[i])->stringtab_offset = strings_size; |
252b5132 RH |
3353 | p += length + 1; |
3354 | strings_size += length + 1; | |
3355 | ||
3356 | /* Always align up to the next word boundary. */ | |
3357 | while (strings_size % 4) | |
7eae7d22 | 3358 | { |
252b5132 RH |
3359 | bfd_put_8 (abfd, 0, p); |
3360 | strings_size++; | |
3361 | p++; | |
7eae7d22 | 3362 | } |
252b5132 RH |
3363 | } |
3364 | ||
3365 | /* Scribble out any partial block. */ | |
dc810e39 AM |
3366 | amt = p - tmp_space; |
3367 | if (bfd_bwrite ((PTR) &tmp_space[0], amt, abfd) != amt) | |
b34976b6 | 3368 | return FALSE; |
252b5132 RH |
3369 | |
3370 | *string_sizep = strings_size; | |
b34976b6 | 3371 | return TRUE; |
252b5132 RH |
3372 | } |
3373 | ||
6fa957a9 | 3374 | /* Compute variable information to be placed in the SOM headers, |
252b5132 RH |
3375 | space/subspace dictionaries, relocation streams, etc. Begin |
3376 | writing parts of the object file. */ | |
3377 | ||
b34976b6 | 3378 | static bfd_boolean |
252b5132 RH |
3379 | som_begin_writing (abfd) |
3380 | bfd *abfd; | |
3381 | { | |
3382 | unsigned long current_offset = 0; | |
3383 | int strings_size = 0; | |
252b5132 RH |
3384 | unsigned long num_spaces, num_subspaces, i; |
3385 | asection *section; | |
3386 | unsigned int total_subspaces = 0; | |
3387 | struct som_exec_auxhdr *exec_header = NULL; | |
3388 | ||
6fa957a9 | 3389 | /* The file header will always be first in an object file, |
252b5132 RH |
3390 | everything else can be in random locations. To keep things |
3391 | "simple" BFD will lay out the object file in the manner suggested | |
3392 | by the PRO ABI for PA-RISC Systems. */ | |
3393 | ||
3394 | /* Before any output can really begin offsets for all the major | |
3395 | portions of the object file must be computed. So, starting | |
3396 | with the initial file header compute (and sometimes write) | |
3397 | each portion of the object file. */ | |
3398 | ||
3399 | /* Make room for the file header, it's contents are not complete | |
3400 | yet, so it can not be written at this time. */ | |
6fa957a9 | 3401 | current_offset += sizeof (struct header); |
252b5132 RH |
3402 | |
3403 | /* Any auxiliary headers will follow the file header. Right now | |
3404 | we support only the copyright and version headers. */ | |
3405 | obj_som_file_hdr (abfd)->aux_header_location = current_offset; | |
3406 | obj_som_file_hdr (abfd)->aux_header_size = 0; | |
3407 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3408 | { | |
3409 | /* Parts of the exec header will be filled in later, so | |
3410 | delay writing the header itself. Fill in the defaults, | |
3411 | and write it later. */ | |
3412 | current_offset += sizeof (struct som_exec_auxhdr); | |
3413 | obj_som_file_hdr (abfd)->aux_header_size | |
3414 | += sizeof (struct som_exec_auxhdr); | |
3415 | exec_header = obj_som_exec_hdr (abfd); | |
3416 | exec_header->som_auxhdr.type = EXEC_AUX_ID; | |
3417 | exec_header->som_auxhdr.length = 40; | |
3418 | } | |
3419 | if (obj_som_version_hdr (abfd) != NULL) | |
3420 | { | |
dc810e39 | 3421 | bfd_size_type len; |
252b5132 | 3422 | |
dc810e39 | 3423 | if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0) |
b34976b6 | 3424 | return FALSE; |
252b5132 RH |
3425 | |
3426 | /* Write the aux_id structure and the string length. */ | |
3427 | len = sizeof (struct aux_id) + sizeof (unsigned int); | |
3428 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3429 | current_offset += len; | |
dc810e39 | 3430 | if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd), len, abfd) != len) |
b34976b6 | 3431 | return FALSE; |
252b5132 RH |
3432 | |
3433 | /* Write the version string. */ | |
3434 | len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int); | |
3435 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3436 | current_offset += len; | |
dc810e39 AM |
3437 | if (bfd_bwrite ((PTR) obj_som_version_hdr (abfd)->user_string, len, abfd) |
3438 | != len) | |
b34976b6 | 3439 | return FALSE; |
252b5132 RH |
3440 | } |
3441 | ||
3442 | if (obj_som_copyright_hdr (abfd) != NULL) | |
3443 | { | |
dc810e39 | 3444 | bfd_size_type len; |
252b5132 | 3445 | |
dc810e39 | 3446 | if (bfd_seek (abfd, (file_ptr) current_offset, SEEK_SET) != 0) |
b34976b6 | 3447 | return FALSE; |
252b5132 RH |
3448 | |
3449 | /* Write the aux_id structure and the string length. */ | |
3450 | len = sizeof (struct aux_id) + sizeof (unsigned int); | |
3451 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3452 | current_offset += len; | |
dc810e39 | 3453 | if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd), len, abfd) != len) |
b34976b6 | 3454 | return FALSE; |
252b5132 RH |
3455 | |
3456 | /* Write the copyright string. */ | |
3457 | len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int); | |
3458 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3459 | current_offset += len; | |
dc810e39 AM |
3460 | if (bfd_bwrite ((PTR) obj_som_copyright_hdr (abfd)->copyright, len, abfd) |
3461 | != len) | |
b34976b6 | 3462 | return FALSE; |
252b5132 RH |
3463 | } |
3464 | ||
3465 | /* Next comes the initialization pointers; we have no initialization | |
3466 | pointers, so current offset does not change. */ | |
3467 | obj_som_file_hdr (abfd)->init_array_location = current_offset; | |
3468 | obj_som_file_hdr (abfd)->init_array_total = 0; | |
3469 | ||
3470 | /* Next are the space records. These are fixed length records. | |
3471 | ||
3472 | Count the number of spaces to determine how much room is needed | |
3473 | in the object file for the space records. | |
3474 | ||
3475 | The names of the spaces are stored in a separate string table, | |
3476 | and the index for each space into the string table is computed | |
3477 | below. Therefore, it is not possible to write the space headers | |
3478 | at this time. */ | |
3479 | num_spaces = som_count_spaces (abfd); | |
3480 | obj_som_file_hdr (abfd)->space_location = current_offset; | |
3481 | obj_som_file_hdr (abfd)->space_total = num_spaces; | |
3482 | current_offset += num_spaces * sizeof (struct space_dictionary_record); | |
3483 | ||
3484 | /* Next are the subspace records. These are fixed length records. | |
3485 | ||
3486 | Count the number of subspaes to determine how much room is needed | |
3487 | in the object file for the subspace records. | |
3488 | ||
3489 | A variety if fields in the subspace record are still unknown at | |
3490 | this time (index into string table, fixup stream location/size, etc). */ | |
3491 | num_subspaces = som_count_subspaces (abfd); | |
3492 | obj_som_file_hdr (abfd)->subspace_location = current_offset; | |
3493 | obj_som_file_hdr (abfd)->subspace_total = num_subspaces; | |
351e2b5a DA |
3494 | current_offset |
3495 | += num_subspaces * sizeof (struct som_subspace_dictionary_record); | |
252b5132 RH |
3496 | |
3497 | /* Next is the string table for the space/subspace names. We will | |
3498 | build and write the string table on the fly. At the same time | |
3499 | we will fill in the space/subspace name index fields. */ | |
3500 | ||
3501 | /* The string table needs to be aligned on a word boundary. */ | |
3502 | if (current_offset % 4) | |
3503 | current_offset += (4 - (current_offset % 4)); | |
3504 | ||
6fa957a9 | 3505 | /* Mark the offset of the space/subspace string table in the |
252b5132 RH |
3506 | file header. */ |
3507 | obj_som_file_hdr (abfd)->space_strings_location = current_offset; | |
3508 | ||
3509 | /* Scribble out the space strings. */ | |
82e51918 | 3510 | if (! som_write_space_strings (abfd, current_offset, &strings_size)) |
b34976b6 | 3511 | return FALSE; |
252b5132 RH |
3512 | |
3513 | /* Record total string table size in the header and update the | |
3514 | current offset. */ | |
3515 | obj_som_file_hdr (abfd)->space_strings_size = strings_size; | |
3516 | current_offset += strings_size; | |
3517 | ||
6fa957a9 | 3518 | /* Next is the compilation unit. */ |
252b5132 RH |
3519 | obj_som_file_hdr (abfd)->compiler_location = current_offset; |
3520 | obj_som_file_hdr (abfd)->compiler_total = 0; | |
6fa957a9 | 3521 | if (obj_som_compilation_unit (abfd)) |
252b5132 RH |
3522 | { |
3523 | obj_som_file_hdr (abfd)->compiler_total = 1; | |
6fa957a9 | 3524 | current_offset += COMPUNITSZ; |
252b5132 RH |
3525 | } |
3526 | ||
3527 | /* Now compute the file positions for the loadable subspaces, taking | |
3528 | care to make sure everything stays properly aligned. */ | |
3529 | ||
3530 | section = abfd->sections; | |
3531 | for (i = 0; i < num_spaces; i++) | |
3532 | { | |
3533 | asection *subsection; | |
3534 | int first_subspace; | |
3535 | unsigned int subspace_offset = 0; | |
3536 | ||
3537 | /* Find a space. */ | |
3538 | while (!som_is_space (section)) | |
3539 | section = section->next; | |
3540 | ||
3541 | first_subspace = 1; | |
3542 | /* Now look for all its subspaces. */ | |
3543 | for (subsection = abfd->sections; | |
3544 | subsection != NULL; | |
3545 | subsection = subsection->next) | |
3546 | { | |
3547 | ||
3548 | if (!som_is_subspace (subsection) | |
3549 | || !som_is_container (section, subsection) | |
3550 | || (subsection->flags & SEC_ALLOC) == 0) | |
3551 | continue; | |
3552 | ||
3553 | /* If this is the first subspace in the space, and we are | |
3554 | building an executable, then take care to make sure all | |
3555 | the alignments are correct and update the exec header. */ | |
3556 | if (first_subspace | |
3557 | && (abfd->flags & (EXEC_P | DYNAMIC))) | |
3558 | { | |
3559 | /* Demand paged executables have each space aligned to a | |
3560 | page boundary. Sharable executables (write-protected | |
3561 | text) have just the private (aka data & bss) space aligned | |
3562 | to a page boundary. Ugh. Not true for HPUX. | |
3563 | ||
3564 | The HPUX kernel requires the text to always be page aligned | |
3565 | within the file regardless of the executable's type. */ | |
3566 | if (abfd->flags & (D_PAGED | DYNAMIC) | |
3567 | || (subsection->flags & SEC_CODE) | |
3568 | || ((abfd->flags & WP_TEXT) | |
3569 | && (subsection->flags & SEC_DATA))) | |
3570 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
3571 | ||
3572 | /* Update the exec header. */ | |
3573 | if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0) | |
3574 | { | |
3575 | exec_header->exec_tmem = section->vma; | |
3576 | exec_header->exec_tfile = current_offset; | |
3577 | } | |
3578 | if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0) | |
3579 | { | |
3580 | exec_header->exec_dmem = section->vma; | |
3581 | exec_header->exec_dfile = current_offset; | |
3582 | } | |
3583 | ||
3584 | /* Keep track of exactly where we are within a particular | |
3585 | space. This is necessary as the braindamaged HPUX | |
6fa957a9 | 3586 | loader will create holes between subspaces *and* |
252b5132 RH |
3587 | subspace alignments are *NOT* preserved. What a crock. */ |
3588 | subspace_offset = subsection->vma; | |
3589 | ||
3590 | /* Only do this for the first subspace within each space. */ | |
3591 | first_subspace = 0; | |
3592 | } | |
3593 | else if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3594 | { | |
3595 | /* The braindamaged HPUX loader may have created a hole | |
3596 | between two subspaces. It is *not* sufficient to use | |
3597 | the alignment specifications within the subspaces to | |
3598 | account for these holes -- I've run into at least one | |
3599 | case where the loader left one code subspace unaligned | |
3600 | in a final executable. | |
3601 | ||
3602 | To combat this we keep a current offset within each space, | |
3603 | and use the subspace vma fields to detect and preserve | |
3604 | holes. What a crock! | |
3605 | ||
3606 | ps. This is not necessary for unloadable space/subspaces. */ | |
3607 | current_offset += subsection->vma - subspace_offset; | |
3608 | if (subsection->flags & SEC_CODE) | |
3609 | exec_header->exec_tsize += subsection->vma - subspace_offset; | |
3610 | else | |
3611 | exec_header->exec_dsize += subsection->vma - subspace_offset; | |
3612 | subspace_offset += subsection->vma - subspace_offset; | |
3613 | } | |
3614 | ||
252b5132 RH |
3615 | subsection->target_index = total_subspaces++; |
3616 | /* This is real data to be loaded from the file. */ | |
3617 | if (subsection->flags & SEC_LOAD) | |
3618 | { | |
3619 | /* Update the size of the code & data. */ | |
3620 | if (abfd->flags & (EXEC_P | DYNAMIC) | |
3621 | && subsection->flags & SEC_CODE) | |
eea6121a | 3622 | exec_header->exec_tsize += subsection->size; |
252b5132 RH |
3623 | else if (abfd->flags & (EXEC_P | DYNAMIC) |
3624 | && subsection->flags & SEC_DATA) | |
eea6121a | 3625 | exec_header->exec_dsize += subsection->size; |
252b5132 RH |
3626 | som_section_data (subsection)->subspace_dict->file_loc_init_value |
3627 | = current_offset; | |
3628 | subsection->filepos = current_offset; | |
eea6121a AM |
3629 | current_offset += subsection->size; |
3630 | subspace_offset += subsection->size; | |
252b5132 RH |
3631 | } |
3632 | /* Looks like uninitialized data. */ | |
3633 | else | |
3634 | { | |
3635 | /* Update the size of the bss section. */ | |
3636 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
eea6121a | 3637 | exec_header->exec_bsize += subsection->size; |
252b5132 RH |
3638 | |
3639 | som_section_data (subsection)->subspace_dict->file_loc_init_value | |
3640 | = 0; | |
3641 | som_section_data (subsection)->subspace_dict-> | |
3642 | initialization_length = 0; | |
3643 | } | |
3644 | } | |
3645 | /* Goto the next section. */ | |
6fa957a9 | 3646 | section = section->next; |
252b5132 RH |
3647 | } |
3648 | ||
3649 | /* Finally compute the file positions for unloadable subspaces. | |
3650 | If building an executable, start the unloadable stuff on its | |
3651 | own page. */ | |
3652 | ||
3653 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3654 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
3655 | ||
3656 | obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset; | |
3657 | section = abfd->sections; | |
3658 | for (i = 0; i < num_spaces; i++) | |
3659 | { | |
3660 | asection *subsection; | |
3661 | ||
3662 | /* Find a space. */ | |
3663 | while (!som_is_space (section)) | |
3664 | section = section->next; | |
3665 | ||
3666 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3667 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
3668 | ||
3669 | /* Now look for all its subspaces. */ | |
3670 | for (subsection = abfd->sections; | |
3671 | subsection != NULL; | |
3672 | subsection = subsection->next) | |
3673 | { | |
6fa957a9 | 3674 | |
252b5132 RH |
3675 | if (!som_is_subspace (subsection) |
3676 | || !som_is_container (section, subsection) | |
3677 | || (subsection->flags & SEC_ALLOC) != 0) | |
3678 | continue; | |
3679 | ||
3680 | subsection->target_index = total_subspaces++; | |
3681 | /* This is real data to be loaded from the file. */ | |
3682 | if ((subsection->flags & SEC_LOAD) == 0) | |
3683 | { | |
3684 | som_section_data (subsection)->subspace_dict->file_loc_init_value | |
3685 | = current_offset; | |
3686 | subsection->filepos = current_offset; | |
eea6121a | 3687 | current_offset += subsection->size; |
252b5132 RH |
3688 | } |
3689 | /* Looks like uninitialized data. */ | |
3690 | else | |
3691 | { | |
3692 | som_section_data (subsection)->subspace_dict->file_loc_init_value | |
3693 | = 0; | |
3694 | som_section_data (subsection)->subspace_dict-> | |
eea6121a | 3695 | initialization_length = subsection->size; |
252b5132 RH |
3696 | } |
3697 | } | |
3698 | /* Goto the next section. */ | |
6fa957a9 | 3699 | section = section->next; |
252b5132 RH |
3700 | } |
3701 | ||
3702 | /* If building an executable, then make sure to seek to and write | |
3703 | one byte at the end of the file to make sure any necessary | |
3704 | zeros are filled in. Ugh. */ | |
3705 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3706 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
dc810e39 | 3707 | if (bfd_seek (abfd, (file_ptr) current_offset - 1, SEEK_SET) != 0) |
b34976b6 | 3708 | return FALSE; |
dc810e39 | 3709 | if (bfd_bwrite ((PTR) "", (bfd_size_type) 1, abfd) != 1) |
b34976b6 | 3710 | return FALSE; |
252b5132 RH |
3711 | |
3712 | obj_som_file_hdr (abfd)->unloadable_sp_size | |
3713 | = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location; | |
3714 | ||
3715 | /* Loader fixups are not supported in any way shape or form. */ | |
3716 | obj_som_file_hdr (abfd)->loader_fixup_location = 0; | |
3717 | obj_som_file_hdr (abfd)->loader_fixup_total = 0; | |
3718 | ||
3719 | /* Done. Store the total size of the SOM so far. */ | |
3720 | obj_som_file_hdr (abfd)->som_length = current_offset; | |
3721 | ||
b34976b6 | 3722 | return TRUE; |
252b5132 RH |
3723 | } |
3724 | ||
3725 | /* Finally, scribble out the various headers to the disk. */ | |
3726 | ||
b34976b6 | 3727 | static bfd_boolean |
252b5132 RH |
3728 | som_finish_writing (abfd) |
3729 | bfd *abfd; | |
3730 | { | |
3731 | int num_spaces = som_count_spaces (abfd); | |
3732 | asymbol **syms = bfd_get_outsymbols (abfd); | |
3733 | int i, num_syms, strings_size; | |
3734 | int subspace_index = 0; | |
3735 | file_ptr location; | |
3736 | asection *section; | |
3737 | unsigned long current_offset; | |
3738 | unsigned int total_reloc_size; | |
dc810e39 | 3739 | bfd_size_type amt; |
252b5132 | 3740 | |
17617495 JL |
3741 | /* We must set up the version identifier here as objcopy/strip copy |
3742 | private BFD data too late for us to handle this in som_begin_writing. */ | |
3743 | if (obj_som_exec_data (abfd) | |
3744 | && obj_som_exec_data (abfd)->version_id) | |
3745 | obj_som_file_hdr (abfd)->version_id = obj_som_exec_data (abfd)->version_id; | |
3746 | else | |
3747 | obj_som_file_hdr (abfd)->version_id = NEW_VERSION_ID; | |
3748 | ||
252b5132 RH |
3749 | /* Next is the symbol table. These are fixed length records. |
3750 | ||
3751 | Count the number of symbols to determine how much room is needed | |
3752 | in the object file for the symbol table. | |
3753 | ||
3754 | The names of the symbols are stored in a separate string table, | |
3755 | and the index for each symbol name into the string table is computed | |
3756 | below. Therefore, it is not possible to write the symbol table | |
6fa957a9 | 3757 | at this time. |
252b5132 RH |
3758 | |
3759 | These used to be output before the subspace contents, but they | |
3760 | were moved here to work around a stupid bug in the hpux linker | |
3761 | (fixed in hpux10). */ | |
3762 | current_offset = obj_som_file_hdr (abfd)->som_length; | |
3763 | ||
3764 | /* Make sure we're on a word boundary. */ | |
3765 | if (current_offset % 4) | |
6fa957a9 | 3766 | current_offset += (4 - (current_offset % 4)); |
252b5132 RH |
3767 | |
3768 | num_syms = bfd_get_symcount (abfd); | |
3769 | obj_som_file_hdr (abfd)->symbol_location = current_offset; | |
3770 | obj_som_file_hdr (abfd)->symbol_total = num_syms; | |
3771 | current_offset += num_syms * sizeof (struct symbol_dictionary_record); | |
3772 | ||
3773 | /* Next are the symbol strings. | |
3774 | Align them to a word boundary. */ | |
3775 | if (current_offset % 4) | |
3776 | current_offset += (4 - (current_offset % 4)); | |
3777 | obj_som_file_hdr (abfd)->symbol_strings_location = current_offset; | |
3778 | ||
3779 | /* Scribble out the symbol strings. */ | |
82e51918 AM |
3780 | if (! som_write_symbol_strings (abfd, current_offset, syms, |
3781 | num_syms, &strings_size, | |
3782 | obj_som_compilation_unit (abfd))) | |
b34976b6 | 3783 | return FALSE; |
252b5132 RH |
3784 | |
3785 | /* Record total string table size in header and update the | |
3786 | current offset. */ | |
3787 | obj_som_file_hdr (abfd)->symbol_strings_size = strings_size; | |
3788 | current_offset += strings_size; | |
3789 | ||
3790 | /* Do prep work before handling fixups. */ | |
3791 | som_prep_for_fixups (abfd, | |
3792 | bfd_get_outsymbols (abfd), | |
3793 | bfd_get_symcount (abfd)); | |
3794 | ||
3795 | /* At the end of the file is the fixup stream which starts on a | |
3796 | word boundary. */ | |
3797 | if (current_offset % 4) | |
6fa957a9 | 3798 | current_offset += (4 - (current_offset % 4)); |
252b5132 RH |
3799 | obj_som_file_hdr (abfd)->fixup_request_location = current_offset; |
3800 | ||
3801 | /* Write the fixups and update fields in subspace headers which | |
3802 | relate to the fixup stream. */ | |
82e51918 | 3803 | if (! som_write_fixups (abfd, current_offset, &total_reloc_size)) |
b34976b6 | 3804 | return FALSE; |
252b5132 RH |
3805 | |
3806 | /* Record the total size of the fixup stream in the file header. */ | |
3807 | obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size; | |
3808 | ||
3809 | /* Done. Store the total size of the SOM. */ | |
3810 | obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size; | |
6fa957a9 | 3811 | |
252b5132 RH |
3812 | /* Now that the symbol table information is complete, build and |
3813 | write the symbol table. */ | |
82e51918 | 3814 | if (! som_build_and_write_symbol_table (abfd)) |
b34976b6 | 3815 | return FALSE; |
252b5132 RH |
3816 | |
3817 | /* Subspaces are written first so that we can set up information | |
3818 | about them in their containing spaces as the subspace is written. */ | |
3819 | ||
3820 | /* Seek to the start of the subspace dictionary records. */ | |
3821 | location = obj_som_file_hdr (abfd)->subspace_location; | |
dc810e39 | 3822 | if (bfd_seek (abfd, location, SEEK_SET) != 0) |
b34976b6 | 3823 | return FALSE; |
252b5132 RH |
3824 | |
3825 | section = abfd->sections; | |
3826 | /* Now for each loadable space write out records for its subspaces. */ | |
3827 | for (i = 0; i < num_spaces; i++) | |
3828 | { | |
3829 | asection *subsection; | |
3830 | ||
3831 | /* Find a space. */ | |
3832 | while (!som_is_space (section)) | |
3833 | section = section->next; | |
3834 | ||
3835 | /* Now look for all its subspaces. */ | |
3836 | for (subsection = abfd->sections; | |
3837 | subsection != NULL; | |
3838 | subsection = subsection->next) | |
3839 | { | |
6fa957a9 | 3840 | |
252b5132 RH |
3841 | /* Skip any section which does not correspond to a space |
3842 | or subspace. Or does not have SEC_ALLOC set (and therefore | |
3843 | has no real bits on the disk). */ | |
3844 | if (!som_is_subspace (subsection) | |
3845 | || !som_is_container (section, subsection) | |
3846 | || (subsection->flags & SEC_ALLOC) == 0) | |
3847 | continue; | |
3848 | ||
3849 | /* If this is the first subspace for this space, then save | |
3850 | the index of the subspace in its containing space. Also | |
3851 | set "is_loadable" in the containing space. */ | |
3852 | ||
3853 | if (som_section_data (section)->space_dict->subspace_quantity == 0) | |
3854 | { | |
3855 | som_section_data (section)->space_dict->is_loadable = 1; | |
3856 | som_section_data (section)->space_dict->subspace_index | |
3857 | = subspace_index; | |
3858 | } | |
3859 | ||
3860 | /* Increment the number of subspaces seen and the number of | |
3861 | subspaces contained within the current space. */ | |
3862 | subspace_index++; | |
3863 | som_section_data (section)->space_dict->subspace_quantity++; | |
3864 | ||
3865 | /* Mark the index of the current space within the subspace's | |
3866 | dictionary record. */ | |
3867 | som_section_data (subsection)->subspace_dict->space_index = i; | |
6fa957a9 | 3868 | |
252b5132 | 3869 | /* Dump the current subspace header. */ |
351e2b5a | 3870 | amt = sizeof (struct som_subspace_dictionary_record); |
dc810e39 AM |
3871 | if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict, |
3872 | amt, abfd) != amt) | |
b34976b6 | 3873 | return FALSE; |
252b5132 RH |
3874 | } |
3875 | /* Goto the next section. */ | |
6fa957a9 | 3876 | section = section->next; |
252b5132 RH |
3877 | } |
3878 | ||
3879 | /* Now repeat the process for unloadable subspaces. */ | |
3880 | section = abfd->sections; | |
3881 | /* Now for each space write out records for its subspaces. */ | |
3882 | for (i = 0; i < num_spaces; i++) | |
3883 | { | |
3884 | asection *subsection; | |
3885 | ||
3886 | /* Find a space. */ | |
3887 | while (!som_is_space (section)) | |
3888 | section = section->next; | |
3889 | ||
3890 | /* Now look for all its subspaces. */ | |
3891 | for (subsection = abfd->sections; | |
3892 | subsection != NULL; | |
3893 | subsection = subsection->next) | |
3894 | { | |
6fa957a9 | 3895 | |
252b5132 RH |
3896 | /* Skip any section which does not correspond to a space or |
3897 | subspace, or which SEC_ALLOC set (and therefore handled | |
3898 | in the loadable spaces/subspaces code above). */ | |
3899 | ||
3900 | if (!som_is_subspace (subsection) | |
3901 | || !som_is_container (section, subsection) | |
3902 | || (subsection->flags & SEC_ALLOC) != 0) | |
3903 | continue; | |
3904 | ||
3905 | /* If this is the first subspace for this space, then save | |
3906 | the index of the subspace in its containing space. Clear | |
3907 | "is_loadable". */ | |
3908 | ||
3909 | if (som_section_data (section)->space_dict->subspace_quantity == 0) | |
3910 | { | |
3911 | som_section_data (section)->space_dict->is_loadable = 0; | |
3912 | som_section_data (section)->space_dict->subspace_index | |
3913 | = subspace_index; | |
3914 | } | |
3915 | ||
3916 | /* Increment the number of subspaces seen and the number of | |
3917 | subspaces contained within the current space. */ | |
3918 | som_section_data (section)->space_dict->subspace_quantity++; | |
6fa957a9 | 3919 | subspace_index++; |
252b5132 RH |
3920 | |
3921 | /* Mark the index of the current space within the subspace's | |
3922 | dictionary record. */ | |
3923 | som_section_data (subsection)->subspace_dict->space_index = i; | |
6fa957a9 | 3924 | |
252b5132 | 3925 | /* Dump this subspace header. */ |
351e2b5a | 3926 | amt = sizeof (struct som_subspace_dictionary_record); |
dc810e39 AM |
3927 | if (bfd_bwrite ((PTR) som_section_data (subsection)->subspace_dict, |
3928 | amt, abfd) != amt) | |
b34976b6 | 3929 | return FALSE; |
252b5132 RH |
3930 | } |
3931 | /* Goto the next section. */ | |
6fa957a9 | 3932 | section = section->next; |
252b5132 RH |
3933 | } |
3934 | ||
7dee875e | 3935 | /* All the subspace dictionary records are written, and all the |
252b5132 RH |
3936 | fields are set up in the space dictionary records. |
3937 | ||
3938 | Seek to the right location and start writing the space | |
3939 | dictionary records. */ | |
3940 | location = obj_som_file_hdr (abfd)->space_location; | |
dc810e39 | 3941 | if (bfd_seek (abfd, location, SEEK_SET) != 0) |
b34976b6 | 3942 | return FALSE; |
252b5132 RH |
3943 | |
3944 | section = abfd->sections; | |
3945 | for (i = 0; i < num_spaces; i++) | |
3946 | { | |
252b5132 RH |
3947 | /* Find a space. */ |
3948 | while (!som_is_space (section)) | |
3949 | section = section->next; | |
3950 | ||
7eae7d22 | 3951 | /* Dump its header. */ |
dc810e39 AM |
3952 | amt = sizeof (struct space_dictionary_record); |
3953 | if (bfd_bwrite ((PTR) som_section_data (section)->space_dict, | |
3954 | amt, abfd) != amt) | |
b34976b6 | 3955 | return FALSE; |
252b5132 RH |
3956 | |
3957 | /* Goto the next section. */ | |
3958 | section = section->next; | |
3959 | } | |
3960 | ||
3961 | /* Write the compilation unit record if there is one. */ | |
3962 | if (obj_som_compilation_unit (abfd)) | |
3963 | { | |
3964 | location = obj_som_file_hdr (abfd)->compiler_location; | |
dc810e39 | 3965 | if (bfd_seek (abfd, location, SEEK_SET) != 0) |
b34976b6 | 3966 | return FALSE; |
252b5132 | 3967 | |
dc810e39 AM |
3968 | amt = COMPUNITSZ; |
3969 | if (bfd_bwrite ((PTR) obj_som_compilation_unit (abfd), amt, abfd) != amt) | |
b34976b6 | 3970 | return FALSE; |
252b5132 RH |
3971 | } |
3972 | ||
3973 | /* Setting of the system_id has to happen very late now that copying of | |
3974 | BFD private data happens *after* section contents are set. */ | |
3975 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
7eae7d22 | 3976 | obj_som_file_hdr (abfd)->system_id = obj_som_exec_data (abfd)->system_id; |
252b5132 | 3977 | else if (bfd_get_mach (abfd) == pa20) |
7eae7d22 | 3978 | obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC2_0; |
252b5132 | 3979 | else if (bfd_get_mach (abfd) == pa11) |
7eae7d22 | 3980 | obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_1; |
252b5132 | 3981 | else |
7eae7d22 | 3982 | obj_som_file_hdr (abfd)->system_id = CPU_PA_RISC1_0; |
252b5132 RH |
3983 | |
3984 | /* Compute the checksum for the file header just before writing | |
3985 | the header to disk. */ | |
3986 | obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd); | |
3987 | ||
3988 | /* Only thing left to do is write out the file header. It is always | |
3989 | at location zero. Seek there and write it. */ | |
dc810e39 | 3990 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
b34976b6 | 3991 | return FALSE; |
dc810e39 AM |
3992 | amt = sizeof (struct header); |
3993 | if (bfd_bwrite ((PTR) obj_som_file_hdr (abfd), amt, abfd) != amt) | |
b34976b6 | 3994 | return FALSE; |
252b5132 RH |
3995 | |
3996 | /* Now write the exec header. */ | |
3997 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3998 | { | |
3999 | long tmp, som_length; | |
4000 | struct som_exec_auxhdr *exec_header; | |
4001 | ||
4002 | exec_header = obj_som_exec_hdr (abfd); | |
4003 | exec_header->exec_entry = bfd_get_start_address (abfd); | |
4004 | exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags; | |
4005 | ||
4006 | /* Oh joys. Ram some of the BSS data into the DATA section | |
7dee875e | 4007 | to be compatible with how the hp linker makes objects |
252b5132 RH |
4008 | (saves memory space). */ |
4009 | tmp = exec_header->exec_dsize; | |
4010 | tmp = SOM_ALIGN (tmp, PA_PAGESIZE); | |
4011 | exec_header->exec_bsize -= (tmp - exec_header->exec_dsize); | |
4012 | if (exec_header->exec_bsize < 0) | |
4013 | exec_header->exec_bsize = 0; | |
4014 | exec_header->exec_dsize = tmp; | |
4015 | ||
4016 | /* Now perform some sanity checks. The idea is to catch bogons now and | |
4017 | inform the user, instead of silently generating a bogus file. */ | |
4018 | som_length = obj_som_file_hdr (abfd)->som_length; | |
4019 | if (exec_header->exec_tfile + exec_header->exec_tsize > som_length | |
4020 | || exec_header->exec_dfile + exec_header->exec_dsize > som_length) | |
4021 | { | |
4022 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4023 | return FALSE; |
252b5132 RH |
4024 | } |
4025 | ||
4026 | if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location, | |
dc810e39 | 4027 | SEEK_SET) != 0) |
b34976b6 | 4028 | return FALSE; |
252b5132 | 4029 | |
dc810e39 AM |
4030 | amt = AUX_HDR_SIZE; |
4031 | if (bfd_bwrite ((PTR) exec_header, amt, abfd) != amt) | |
b34976b6 | 4032 | return FALSE; |
252b5132 | 4033 | } |
b34976b6 | 4034 | return TRUE; |
252b5132 RH |
4035 | } |
4036 | ||
4037 | /* Compute and return the checksum for a SOM file header. */ | |
4038 | ||
4039 | static unsigned long | |
4040 | som_compute_checksum (abfd) | |
4041 | bfd *abfd; | |
4042 | { | |
4043 | unsigned long checksum, count, i; | |
4044 | unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd); | |
4045 | ||
4046 | checksum = 0; | |
4047 | count = sizeof (struct header) / sizeof (unsigned long); | |
4048 | for (i = 0; i < count; i++) | |
4049 | checksum ^= *(buffer + i); | |
4050 | ||
4051 | return checksum; | |
4052 | } | |
4053 | ||
4054 | static void | |
4055 | som_bfd_derive_misc_symbol_info (abfd, sym, info) | |
7dca057b | 4056 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
4057 | asymbol *sym; |
4058 | struct som_misc_symbol_info *info; | |
4059 | { | |
4060 | /* Initialize. */ | |
4061 | memset (info, 0, sizeof (struct som_misc_symbol_info)); | |
4062 | ||
4063 | /* The HP SOM linker requires detailed type information about | |
4064 | all symbols (including undefined symbols!). Unfortunately, | |
4065 | the type specified in an import/export statement does not | |
4066 | always match what the linker wants. Severe braindamage. */ | |
6fa957a9 | 4067 | |
252b5132 RH |
4068 | /* Section symbols will not have a SOM symbol type assigned to |
4069 | them yet. Assign all section symbols type ST_DATA. */ | |
4070 | if (sym->flags & BSF_SECTION_SYM) | |
4071 | info->symbol_type = ST_DATA; | |
4072 | else | |
4073 | { | |
351e2b5a DA |
4074 | /* For BFD style common, the linker will choke unless we set the |
4075 | type and scope to ST_STORAGE and SS_UNSAT, respectively. */ | |
252b5132 RH |
4076 | if (bfd_is_com_section (sym->section)) |
4077 | { | |
252b5132 | 4078 | info->symbol_type = ST_STORAGE; |
351e2b5a | 4079 | info->symbol_scope = SS_UNSAT; |
252b5132 RH |
4080 | } |
4081 | ||
4082 | /* It is possible to have a symbol without an associated | |
4083 | type. This happens if the user imported the symbol | |
4084 | without a type and the symbol was never defined | |
4085 | locally. If BSF_FUNCTION is set for this symbol, then | |
4086 | assign it type ST_CODE (the HP linker requires undefined | |
4087 | external functions to have type ST_CODE rather than ST_ENTRY). */ | |
4088 | else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN | |
4089 | || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE) | |
4090 | && bfd_is_und_section (sym->section) | |
4091 | && sym->flags & BSF_FUNCTION) | |
4092 | info->symbol_type = ST_CODE; | |
4093 | ||
4094 | /* Handle function symbols which were defined in this file. | |
4095 | They should have type ST_ENTRY. Also retrieve the argument | |
4096 | relocation bits from the SOM backend information. */ | |
4097 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY | |
4098 | || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE | |
4099 | && (sym->flags & BSF_FUNCTION)) | |
4100 | || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN | |
4101 | && (sym->flags & BSF_FUNCTION))) | |
4102 | { | |
4103 | info->symbol_type = ST_ENTRY; | |
4104 | info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc; | |
4105 | info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level; | |
4106 | } | |
4107 | ||
4108 | /* For unknown symbols set the symbol's type based on the symbol's | |
4109 | section (ST_DATA for DATA sections, ST_CODE for CODE sections). */ | |
4110 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN) | |
4111 | { | |
4112 | if (sym->section->flags & SEC_CODE) | |
4113 | info->symbol_type = ST_CODE; | |
4114 | else | |
4115 | info->symbol_type = ST_DATA; | |
4116 | } | |
6fa957a9 | 4117 | |
252b5132 RH |
4118 | /* From now on it's a very simple mapping. */ |
4119 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE) | |
4120 | info->symbol_type = ST_ABSOLUTE; | |
4121 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE) | |
4122 | info->symbol_type = ST_CODE; | |
4123 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA) | |
4124 | info->symbol_type = ST_DATA; | |
4125 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE) | |
4126 | info->symbol_type = ST_MILLICODE; | |
4127 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL) | |
4128 | info->symbol_type = ST_PLABEL; | |
4129 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG) | |
4130 | info->symbol_type = ST_PRI_PROG; | |
4131 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG) | |
4132 | info->symbol_type = ST_SEC_PROG; | |
4133 | } | |
6fa957a9 | 4134 | |
252b5132 RH |
4135 | /* Now handle the symbol's scope. Exported data which is not |
4136 | in the common section has scope SS_UNIVERSAL. Note scope | |
4137 | of common symbols was handled earlier! */ | |
351e2b5a DA |
4138 | if (bfd_is_com_section (sym->section)) |
4139 | ; | |
4140 | else if (bfd_is_und_section (sym->section)) | |
252b5132 | 4141 | info->symbol_scope = SS_UNSAT; |
351e2b5a | 4142 | else if (sym->flags & (BSF_EXPORT | BSF_WEAK)) |
252b5132 RH |
4143 | info->symbol_scope = SS_UNIVERSAL; |
4144 | /* Anything else which is not in the common section has scope | |
4145 | SS_LOCAL. */ | |
351e2b5a | 4146 | else |
252b5132 RH |
4147 | info->symbol_scope = SS_LOCAL; |
4148 | ||
4149 | /* Now set the symbol_info field. It has no real meaning | |
4150 | for undefined or common symbols, but the HP linker will | |
4151 | choke if it's not set to some "reasonable" value. We | |
4152 | use zero as a reasonable value. */ | |
4153 | if (bfd_is_com_section (sym->section) | |
4154 | || bfd_is_und_section (sym->section) | |
4155 | || bfd_is_abs_section (sym->section)) | |
4156 | info->symbol_info = 0; | |
6fa957a9 | 4157 | /* For all other symbols, the symbol_info field contains the |
252b5132 RH |
4158 | subspace index of the space this symbol is contained in. */ |
4159 | else | |
4160 | info->symbol_info = sym->section->target_index; | |
4161 | ||
4162 | /* Set the symbol's value. */ | |
4163 | info->symbol_value = sym->value + sym->section->vma; | |
ba20314e | 4164 | |
351e2b5a | 4165 | /* The secondary_def field is for "weak" symbols. */ |
ba20314e | 4166 | if (sym->flags & BSF_WEAK) |
b34976b6 | 4167 | info->secondary_def = TRUE; |
ba20314e | 4168 | else |
b34976b6 | 4169 | info->secondary_def = FALSE; |
ba20314e | 4170 | |
351e2b5a DA |
4171 | /* The is_comdat, is_common and dup_common fields provide various |
4172 | flavors of common. | |
4173 | ||
4174 | For data symbols, setting IS_COMMON provides Fortran style common | |
4175 | (duplicate definitions and overlapped initialization). Setting both | |
4176 | IS_COMMON and DUP_COMMON provides Cobol style common (duplicate | |
4177 | definitions as long as they are all the same length). In a shared | |
4178 | link data symbols retain their IS_COMMON and DUP_COMMON flags. | |
4179 | An IS_COMDAT data symbol is similar to a IS_COMMON | DUP_COMMON | |
4180 | symbol except in that it loses its IS_COMDAT flag in a shared link. | |
4181 | ||
4182 | For code symbols, IS_COMDAT and DUP_COMMON have effect. Universal | |
4183 | DUP_COMMON code symbols are not exported from shared libraries. | |
4184 | IS_COMDAT symbols are exported but they lose their IS_COMDAT flag. | |
4185 | ||
4186 | We take a simplified approach to setting the is_comdat, is_common | |
4187 | and dup_common flags in symbols based on the flag settings of their | |
4188 | subspace. This avoids having to add directives like `.comdat' but | |
4189 | the linker behavior is probably undefined if there is more than one | |
4190 | universal symbol (comdat key sysmbol) in a subspace. | |
4191 | ||
4192 | The behavior of these flags is not well documentmented, so there | |
4193 | may be bugs and some surprising interactions with other flags. */ | |
4194 | if (som_section_data (sym->section) | |
4195 | && som_section_data (sym->section)->subspace_dict | |
4196 | && info->symbol_scope == SS_UNIVERSAL | |
4197 | && (info->symbol_type == ST_ENTRY | |
4198 | || info->symbol_type == ST_CODE | |
4199 | || info->symbol_type == ST_DATA)) | |
4200 | { | |
4201 | info->is_comdat | |
4202 | = som_section_data (sym->section)->subspace_dict->is_comdat; | |
4203 | info->is_common | |
4204 | = som_section_data (sym->section)->subspace_dict->is_common; | |
4205 | info->dup_common | |
4206 | = som_section_data (sym->section)->subspace_dict->dup_common; | |
4207 | } | |
252b5132 RH |
4208 | } |
4209 | ||
4210 | /* Build and write, in one big chunk, the entire symbol table for | |
4211 | this BFD. */ | |
4212 | ||
b34976b6 | 4213 | static bfd_boolean |
252b5132 RH |
4214 | som_build_and_write_symbol_table (abfd) |
4215 | bfd *abfd; | |
4216 | { | |
4217 | unsigned int num_syms = bfd_get_symcount (abfd); | |
4218 | file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location; | |
4219 | asymbol **bfd_syms = obj_som_sorted_syms (abfd); | |
4220 | struct symbol_dictionary_record *som_symtab = NULL; | |
dc810e39 AM |
4221 | unsigned int i; |
4222 | bfd_size_type symtab_size; | |
252b5132 RH |
4223 | |
4224 | /* Compute total symbol table size and allocate a chunk of memory | |
4225 | to hold the symbol table as we build it. */ | |
dc810e39 AM |
4226 | symtab_size = num_syms; |
4227 | symtab_size *= sizeof (struct symbol_dictionary_record); | |
9bab7074 | 4228 | som_symtab = (struct symbol_dictionary_record *) bfd_zmalloc (symtab_size); |
252b5132 RH |
4229 | if (som_symtab == NULL && symtab_size != 0) |
4230 | goto error_return; | |
252b5132 RH |
4231 | |
4232 | /* Walk over each symbol. */ | |
4233 | for (i = 0; i < num_syms; i++) | |
4234 | { | |
4235 | struct som_misc_symbol_info info; | |
4236 | ||
6fa957a9 KH |
4237 | /* This is really an index into the symbol strings table. |
4238 | By the time we get here, the index has already been | |
252b5132 RH |
4239 | computed and stored into the name field in the BFD symbol. */ |
4240 | som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset; | |
4241 | ||
4242 | /* Derive SOM information from the BFD symbol. */ | |
4243 | som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info); | |
4244 | ||
4245 | /* Now use it. */ | |
4246 | som_symtab[i].symbol_type = info.symbol_type; | |
4247 | som_symtab[i].symbol_scope = info.symbol_scope; | |
4248 | som_symtab[i].arg_reloc = info.arg_reloc; | |
4249 | som_symtab[i].symbol_info = info.symbol_info; | |
4250 | som_symtab[i].xleast = 3; | |
4251 | som_symtab[i].symbol_value = info.symbol_value | info.priv_level; | |
ba20314e | 4252 | som_symtab[i].secondary_def = info.secondary_def; |
351e2b5a DA |
4253 | som_symtab[i].is_comdat = info.is_comdat; |
4254 | som_symtab[i].is_common = info.is_common; | |
4255 | som_symtab[i].dup_common = info.dup_common; | |
252b5132 RH |
4256 | } |
4257 | ||
4258 | /* Everything is ready, seek to the right location and | |
4259 | scribble out the symbol table. */ | |
4260 | if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0) | |
b34976b6 | 4261 | return FALSE; |
252b5132 | 4262 | |
dc810e39 | 4263 | if (bfd_bwrite ((PTR) som_symtab, symtab_size, abfd) != symtab_size) |
252b5132 RH |
4264 | goto error_return; |
4265 | ||
4266 | if (som_symtab != NULL) | |
4267 | free (som_symtab); | |
b34976b6 | 4268 | return TRUE; |
252b5132 RH |
4269 | error_return: |
4270 | if (som_symtab != NULL) | |
4271 | free (som_symtab); | |
b34976b6 | 4272 | return FALSE; |
252b5132 RH |
4273 | } |
4274 | ||
6fa957a9 | 4275 | /* Write an object in SOM format. */ |
252b5132 | 4276 | |
b34976b6 | 4277 | static bfd_boolean |
252b5132 RH |
4278 | som_write_object_contents (abfd) |
4279 | bfd *abfd; | |
4280 | { | |
82e51918 | 4281 | if (! abfd->output_has_begun) |
252b5132 RH |
4282 | { |
4283 | /* Set up fixed parts of the file, space, and subspace headers. | |
4284 | Notify the world that output has begun. */ | |
4285 | som_prep_headers (abfd); | |
b34976b6 | 4286 | abfd->output_has_begun = TRUE; |
252b5132 RH |
4287 | /* Start writing the object file. This include all the string |
4288 | tables, fixup streams, and other portions of the object file. */ | |
4289 | som_begin_writing (abfd); | |
4290 | } | |
4291 | ||
4292 | return (som_finish_writing (abfd)); | |
4293 | } | |
252b5132 RH |
4294 | \f |
4295 | /* Read and save the string table associated with the given BFD. */ | |
4296 | ||
b34976b6 | 4297 | static bfd_boolean |
252b5132 RH |
4298 | som_slurp_string_table (abfd) |
4299 | bfd *abfd; | |
4300 | { | |
4301 | char *stringtab; | |
dc810e39 | 4302 | bfd_size_type amt; |
252b5132 RH |
4303 | |
4304 | /* Use the saved version if its available. */ | |
4305 | if (obj_som_stringtab (abfd) != NULL) | |
b34976b6 | 4306 | return TRUE; |
252b5132 RH |
4307 | |
4308 | /* I don't think this can currently happen, and I'm not sure it should | |
4309 | really be an error, but it's better than getting unpredictable results | |
4310 | from the host's malloc when passed a size of zero. */ | |
4311 | if (obj_som_stringtab_size (abfd) == 0) | |
4312 | { | |
4313 | bfd_set_error (bfd_error_no_symbols); | |
b34976b6 | 4314 | return FALSE; |
252b5132 RH |
4315 | } |
4316 | ||
4317 | /* Allocate and read in the string table. */ | |
dc810e39 | 4318 | amt = obj_som_stringtab_size (abfd); |
9bab7074 | 4319 | stringtab = bfd_zmalloc (amt); |
252b5132 | 4320 | if (stringtab == NULL) |
b34976b6 | 4321 | return FALSE; |
252b5132 | 4322 | |
dc810e39 | 4323 | if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) != 0) |
b34976b6 | 4324 | return FALSE; |
6fa957a9 | 4325 | |
dc810e39 | 4326 | if (bfd_bread (stringtab, amt, abfd) != amt) |
b34976b6 | 4327 | return FALSE; |
252b5132 | 4328 | |
6fa957a9 | 4329 | /* Save our results and return success. */ |
252b5132 | 4330 | obj_som_stringtab (abfd) = stringtab; |
b34976b6 | 4331 | return TRUE; |
252b5132 RH |
4332 | } |
4333 | ||
4334 | /* Return the amount of data (in bytes) required to hold the symbol | |
4335 | table for this object. */ | |
4336 | ||
4337 | static long | |
4338 | som_get_symtab_upper_bound (abfd) | |
4339 | bfd *abfd; | |
4340 | { | |
4341 | if (!som_slurp_symbol_table (abfd)) | |
4342 | return -1; | |
4343 | ||
4344 | return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *)); | |
4345 | } | |
4346 | ||
4347 | /* Convert from a SOM subspace index to a BFD section. */ | |
4348 | ||
4349 | static asection * | |
4350 | bfd_section_from_som_symbol (abfd, symbol) | |
4351 | bfd *abfd; | |
4352 | struct symbol_dictionary_record *symbol; | |
4353 | { | |
4354 | asection *section; | |
4355 | ||
4356 | /* The meaning of the symbol_info field changes for functions | |
4357 | within executables. So only use the quick symbol_info mapping for | |
4358 | incomplete objects and non-function symbols in executables. */ | |
4359 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
4360 | || (symbol->symbol_type != ST_ENTRY | |
4361 | && symbol->symbol_type != ST_PRI_PROG | |
4362 | && symbol->symbol_type != ST_SEC_PROG | |
4363 | && symbol->symbol_type != ST_MILLICODE)) | |
4364 | { | |
5198ba8b | 4365 | int index = symbol->symbol_info; |
252b5132 RH |
4366 | for (section = abfd->sections; section != NULL; section = section->next) |
4367 | if (section->target_index == index && som_is_subspace (section)) | |
4368 | return section; | |
4369 | ||
4370 | /* Could be a symbol from an external library (such as an OMOS | |
4371 | shared library). Don't abort. */ | |
4372 | return bfd_abs_section_ptr; | |
4373 | ||
4374 | } | |
4375 | else | |
4376 | { | |
4377 | unsigned int value = symbol->symbol_value; | |
4378 | ||
4379 | /* For executables we will have to use the symbol's address and | |
4380 | find out what section would contain that address. Yuk. */ | |
4381 | for (section = abfd->sections; section; section = section->next) | |
4382 | { | |
4383 | if (value >= section->vma | |
eea6121a | 4384 | && value <= section->vma + section->size |
252b5132 RH |
4385 | && som_is_subspace (section)) |
4386 | return section; | |
4387 | } | |
4388 | ||
4389 | /* Could be a symbol from an external library (such as an OMOS | |
4390 | shared library). Don't abort. */ | |
4391 | return bfd_abs_section_ptr; | |
4392 | ||
4393 | } | |
4394 | } | |
4395 | ||
4396 | /* Read and save the symbol table associated with the given BFD. */ | |
4397 | ||
4398 | static unsigned int | |
4399 | som_slurp_symbol_table (abfd) | |
4400 | bfd *abfd; | |
4401 | { | |
4402 | int symbol_count = bfd_get_symcount (abfd); | |
4403 | int symsize = sizeof (struct symbol_dictionary_record); | |
4404 | char *stringtab; | |
4405 | struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp; | |
4406 | som_symbol_type *sym, *symbase; | |
dc810e39 | 4407 | bfd_size_type amt; |
252b5132 RH |
4408 | |
4409 | /* Return saved value if it exists. */ | |
4410 | if (obj_som_symtab (abfd) != NULL) | |
4411 | goto successful_return; | |
4412 | ||
4413 | /* Special case. This is *not* an error. */ | |
4414 | if (symbol_count == 0) | |
4415 | goto successful_return; | |
4416 | ||
4417 | if (!som_slurp_string_table (abfd)) | |
4418 | goto error_return; | |
4419 | ||
4420 | stringtab = obj_som_stringtab (abfd); | |
4421 | ||
dc810e39 AM |
4422 | amt = symbol_count; |
4423 | amt *= sizeof (som_symbol_type); | |
9bab7074 | 4424 | symbase = (som_symbol_type *) bfd_zmalloc (amt); |
252b5132 RH |
4425 | if (symbase == NULL) |
4426 | goto error_return; | |
252b5132 RH |
4427 | |
4428 | /* Read in the external SOM representation. */ | |
dc810e39 AM |
4429 | amt = symbol_count; |
4430 | amt *= symsize; | |
4431 | buf = bfd_malloc (amt); | |
4432 | if (buf == NULL && amt != 0) | |
252b5132 | 4433 | goto error_return; |
dc810e39 | 4434 | if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) != 0) |
252b5132 | 4435 | goto error_return; |
dc810e39 | 4436 | if (bfd_bread (buf, amt, abfd) != amt) |
252b5132 RH |
4437 | goto error_return; |
4438 | ||
4439 | /* Iterate over all the symbols and internalize them. */ | |
4440 | endbufp = buf + symbol_count; | |
4441 | for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp) | |
4442 | { | |
4443 | ||
4444 | /* I don't think we care about these. */ | |
4445 | if (bufp->symbol_type == ST_SYM_EXT | |
4446 | || bufp->symbol_type == ST_ARG_EXT) | |
4447 | continue; | |
4448 | ||
4449 | /* Set some private data we care about. */ | |
4450 | if (bufp->symbol_type == ST_NULL) | |
4451 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN; | |
4452 | else if (bufp->symbol_type == ST_ABSOLUTE) | |
4453 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE; | |
4454 | else if (bufp->symbol_type == ST_DATA) | |
4455 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA; | |
4456 | else if (bufp->symbol_type == ST_CODE) | |
4457 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE; | |
4458 | else if (bufp->symbol_type == ST_PRI_PROG) | |
4459 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG; | |
4460 | else if (bufp->symbol_type == ST_SEC_PROG) | |
4461 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG; | |
4462 | else if (bufp->symbol_type == ST_ENTRY) | |
4463 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY; | |
4464 | else if (bufp->symbol_type == ST_MILLICODE) | |
4465 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE; | |
4466 | else if (bufp->symbol_type == ST_PLABEL) | |
4467 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL; | |
4468 | else | |
4469 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN; | |
4470 | som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc; | |
4471 | ||
4472 | /* Some reasonable defaults. */ | |
4473 | sym->symbol.the_bfd = abfd; | |
4474 | sym->symbol.name = bufp->name.n_strx + stringtab; | |
4475 | sym->symbol.value = bufp->symbol_value; | |
4476 | sym->symbol.section = 0; | |
4477 | sym->symbol.flags = 0; | |
4478 | ||
4479 | switch (bufp->symbol_type) | |
4480 | { | |
4481 | case ST_ENTRY: | |
4482 | case ST_MILLICODE: | |
4483 | sym->symbol.flags |= BSF_FUNCTION; | |
4484 | som_symbol_data (sym)->tc_data.ap.hppa_priv_level = | |
4485 | sym->symbol.value & 0x3; | |
4486 | sym->symbol.value &= ~0x3; | |
4487 | break; | |
4488 | ||
4489 | case ST_STUB: | |
4490 | case ST_CODE: | |
4491 | case ST_PRI_PROG: | |
4492 | case ST_SEC_PROG: | |
4493 | som_symbol_data (sym)->tc_data.ap.hppa_priv_level = | |
4494 | sym->symbol.value & 0x3; | |
4495 | sym->symbol.value &= ~0x3; | |
7da1b175 | 4496 | /* If the symbol's scope is SS_UNSAT, then these are |
252b5132 RH |
4497 | undefined function symbols. */ |
4498 | if (bufp->symbol_scope == SS_UNSAT) | |
4499 | sym->symbol.flags |= BSF_FUNCTION; | |
252b5132 RH |
4500 | |
4501 | default: | |
4502 | break; | |
4503 | } | |
4504 | ||
4505 | /* Handle scoping and section information. */ | |
4506 | switch (bufp->symbol_scope) | |
4507 | { | |
4508 | /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols, | |
4509 | so the section associated with this symbol can't be known. */ | |
4510 | case SS_EXTERNAL: | |
4511 | if (bufp->symbol_type != ST_STORAGE) | |
4512 | sym->symbol.section = bfd_und_section_ptr; | |
4513 | else | |
4514 | sym->symbol.section = bfd_com_section_ptr; | |
4515 | sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL); | |
4516 | break; | |
4517 | ||
4518 | case SS_UNSAT: | |
4519 | if (bufp->symbol_type != ST_STORAGE) | |
4520 | sym->symbol.section = bfd_und_section_ptr; | |
4521 | else | |
4522 | sym->symbol.section = bfd_com_section_ptr; | |
4523 | break; | |
4524 | ||
4525 | case SS_UNIVERSAL: | |
4526 | sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL); | |
4527 | sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp); | |
4528 | sym->symbol.value -= sym->symbol.section->vma; | |
4529 | break; | |
4530 | ||
4531 | #if 0 | |
4532 | /* SS_GLOBAL and SS_LOCAL are two names for the same thing. | |
4533 | Sound dumb? It is. */ | |
4534 | case SS_GLOBAL: | |
4535 | #endif | |
4536 | case SS_LOCAL: | |
4537 | sym->symbol.flags |= BSF_LOCAL; | |
4538 | sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp); | |
4539 | sym->symbol.value -= sym->symbol.section->vma; | |
4540 | break; | |
4541 | } | |
4542 | ||
ba20314e CM |
4543 | /* Check for a weak symbol. */ |
4544 | if (bufp->secondary_def) | |
7eae7d22 | 4545 | sym->symbol.flags |= BSF_WEAK; |
ba20314e | 4546 | |
252b5132 RH |
4547 | /* Mark section symbols and symbols used by the debugger. |
4548 | Note $START$ is a magic code symbol, NOT a section symbol. */ | |
4549 | if (sym->symbol.name[0] == '$' | |
4550 | && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$' | |
4551 | && !strcmp (sym->symbol.name, sym->symbol.section->name)) | |
4552 | sym->symbol.flags |= BSF_SECTION_SYM; | |
4553 | else if (!strncmp (sym->symbol.name, "L$0\002", 4)) | |
4554 | { | |
4555 | sym->symbol.flags |= BSF_SECTION_SYM; | |
4556 | sym->symbol.name = sym->symbol.section->name; | |
4557 | } | |
4558 | else if (!strncmp (sym->symbol.name, "L$0\001", 4)) | |
4559 | sym->symbol.flags |= BSF_DEBUGGING; | |
4560 | ||
4561 | /* Note increment at bottom of loop, since we skip some symbols | |
b34976b6 | 4562 | we can not include it as part of the for statement. */ |
252b5132 RH |
4563 | sym++; |
4564 | } | |
4565 | ||
4566 | /* We modify the symbol count to record the number of BFD symbols we | |
4567 | created. */ | |
4568 | bfd_get_symcount (abfd) = sym - symbase; | |
4569 | ||
4570 | /* Save our results and return success. */ | |
4571 | obj_som_symtab (abfd) = symbase; | |
4572 | successful_return: | |
4573 | if (buf != NULL) | |
4574 | free (buf); | |
b34976b6 | 4575 | return (TRUE); |
252b5132 RH |
4576 | |
4577 | error_return: | |
4578 | if (buf != NULL) | |
4579 | free (buf); | |
b34976b6 | 4580 | return FALSE; |
252b5132 RH |
4581 | } |
4582 | ||
4583 | /* Canonicalize a SOM symbol table. Return the number of entries | |
4584 | in the symbol table. */ | |
4585 | ||
4586 | static long | |
6cee3f79 | 4587 | som_canonicalize_symtab (abfd, location) |
252b5132 RH |
4588 | bfd *abfd; |
4589 | asymbol **location; | |
4590 | { | |
4591 | int i; | |
4592 | som_symbol_type *symbase; | |
4593 | ||
4594 | if (!som_slurp_symbol_table (abfd)) | |
4595 | return -1; | |
4596 | ||
4597 | i = bfd_get_symcount (abfd); | |
4598 | symbase = obj_som_symtab (abfd); | |
4599 | ||
4600 | for (; i > 0; i--, location++, symbase++) | |
4601 | *location = &symbase->symbol; | |
4602 | ||
4603 | /* Final null pointer. */ | |
4604 | *location = 0; | |
4605 | return (bfd_get_symcount (abfd)); | |
4606 | } | |
4607 | ||
4608 | /* Make a SOM symbol. There is nothing special to do here. */ | |
4609 | ||
4610 | static asymbol * | |
4611 | som_make_empty_symbol (abfd) | |
4612 | bfd *abfd; | |
4613 | { | |
dc810e39 AM |
4614 | bfd_size_type amt = sizeof (som_symbol_type); |
4615 | som_symbol_type *new = (som_symbol_type *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
4616 | if (new == NULL) |
4617 | return 0; | |
4618 | new->symbol.the_bfd = abfd; | |
4619 | ||
4620 | return &new->symbol; | |
4621 | } | |
4622 | ||
4623 | /* Print symbol information. */ | |
4624 | ||
4625 | static void | |
60b89a18 L |
4626 | som_print_symbol (abfd, afile, symbol, how) |
4627 | bfd *abfd; | |
252b5132 RH |
4628 | PTR afile; |
4629 | asymbol *symbol; | |
4630 | bfd_print_symbol_type how; | |
4631 | { | |
4632 | FILE *file = (FILE *) afile; | |
4633 | switch (how) | |
4634 | { | |
4635 | case bfd_print_symbol_name: | |
4636 | fprintf (file, "%s", symbol->name); | |
4637 | break; | |
4638 | case bfd_print_symbol_more: | |
4639 | fprintf (file, "som "); | |
4640 | fprintf_vma (file, symbol->value); | |
4641 | fprintf (file, " %lx", (long) symbol->flags); | |
4642 | break; | |
4643 | case bfd_print_symbol_all: | |
4644 | { | |
dc810e39 | 4645 | const char *section_name; |
252b5132 | 4646 | section_name = symbol->section ? symbol->section->name : "(*none*)"; |
60b89a18 | 4647 | bfd_print_symbol_vandf (abfd, (PTR) file, symbol); |
252b5132 RH |
4648 | fprintf (file, " %s\t%s", section_name, symbol->name); |
4649 | break; | |
4650 | } | |
4651 | } | |
4652 | } | |
4653 | ||
b34976b6 | 4654 | static bfd_boolean |
252b5132 | 4655 | som_bfd_is_local_label_name (abfd, name) |
7dca057b | 4656 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
4657 | const char *name; |
4658 | { | |
4659 | return (name[0] == 'L' && name[1] == '$'); | |
4660 | } | |
4661 | ||
4662 | /* Count or process variable-length SOM fixup records. | |
4663 | ||
4664 | To avoid code duplication we use this code both to compute the number | |
4665 | of relocations requested by a stream, and to internalize the stream. | |
4666 | ||
4667 | When computing the number of relocations requested by a stream the | |
4668 | variables rptr, section, and symbols have no meaning. | |
4669 | ||
4670 | Return the number of relocations requested by the fixup stream. When | |
6fa957a9 | 4671 | not just counting |
252b5132 RH |
4672 | |
4673 | This needs at least two or three more passes to get it cleaned up. */ | |
4674 | ||
4675 | static unsigned int | |
4676 | som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count) | |
4677 | unsigned char *fixup; | |
4678 | unsigned int end; | |
4679 | arelent *internal_relocs; | |
4680 | asection *section; | |
4681 | asymbol **symbols; | |
b34976b6 | 4682 | bfd_boolean just_count; |
252b5132 RH |
4683 | { |
4684 | unsigned int op, varname, deallocate_contents = 0; | |
4685 | unsigned char *end_fixups = &fixup[end]; | |
4686 | const struct fixup_format *fp; | |
7dca057b | 4687 | const char *cp; |
252b5132 RH |
4688 | unsigned char *save_fixup; |
4689 | int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits; | |
4690 | const int *subop; | |
7eae7d22 | 4691 | arelent *rptr = internal_relocs; |
252b5132 RH |
4692 | unsigned int offset = 0; |
4693 | ||
4694 | #define var(c) variables[(c) - 'A'] | |
4695 | #define push(v) (*sp++ = (v)) | |
4696 | #define pop() (*--sp) | |
4697 | #define emptystack() (sp == stack) | |
4698 | ||
4699 | som_initialize_reloc_queue (reloc_queue); | |
4700 | memset (variables, 0, sizeof (variables)); | |
4701 | memset (stack, 0, sizeof (stack)); | |
4702 | count = 0; | |
4703 | prev_fixup = 0; | |
4704 | saved_unwind_bits = 0; | |
4705 | sp = stack; | |
4706 | ||
4707 | while (fixup < end_fixups) | |
4708 | { | |
4709 | ||
4710 | /* Save pointer to the start of this fixup. We'll use | |
4711 | it later to determine if it is necessary to put this fixup | |
4712 | on the queue. */ | |
4713 | save_fixup = fixup; | |
4714 | ||
4715 | /* Get the fixup code and its associated format. */ | |
4716 | op = *fixup++; | |
4717 | fp = &som_fixup_formats[op]; | |
4718 | ||
4719 | /* Handle a request for a previous fixup. */ | |
4720 | if (*fp->format == 'P') | |
4721 | { | |
4722 | /* Get pointer to the beginning of the prev fixup, move | |
4723 | the repeated fixup to the head of the queue. */ | |
4724 | fixup = reloc_queue[fp->D].reloc; | |
4725 | som_reloc_queue_fix (reloc_queue, fp->D); | |
4726 | prev_fixup = 1; | |
4727 | ||
4728 | /* Get the fixup code and its associated format. */ | |
4729 | op = *fixup++; | |
4730 | fp = &som_fixup_formats[op]; | |
4731 | } | |
4732 | ||
4733 | /* If this fixup will be passed to BFD, set some reasonable defaults. */ | |
4734 | if (! just_count | |
4735 | && som_hppa_howto_table[op].type != R_NO_RELOCATION | |
4736 | && som_hppa_howto_table[op].type != R_DATA_OVERRIDE) | |
4737 | { | |
4738 | rptr->address = offset; | |
4739 | rptr->howto = &som_hppa_howto_table[op]; | |
4740 | rptr->addend = 0; | |
4741 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4742 | } | |
4743 | ||
4744 | /* Set default input length to 0. Get the opcode class index | |
4745 | into D. */ | |
4746 | var ('L') = 0; | |
4747 | var ('D') = fp->D; | |
4748 | var ('U') = saved_unwind_bits; | |
4749 | ||
4750 | /* Get the opcode format. */ | |
4751 | cp = fp->format; | |
4752 | ||
4753 | /* Process the format string. Parsing happens in two phases, | |
6fa957a9 | 4754 | parse RHS, then assign to LHS. Repeat until no more |
252b5132 RH |
4755 | characters in the format string. */ |
4756 | while (*cp) | |
4757 | { | |
4758 | /* The variable this pass is going to compute a value for. */ | |
4759 | varname = *cp++; | |
4760 | ||
4761 | /* Start processing RHS. Continue until a NULL or '=' is found. */ | |
4762 | do | |
4763 | { | |
4764 | c = *cp++; | |
4765 | ||
4766 | /* If this is a variable, push it on the stack. */ | |
3882b010 | 4767 | if (ISUPPER (c)) |
252b5132 RH |
4768 | push (var (c)); |
4769 | ||
4770 | /* If this is a lower case letter, then it represents | |
4771 | additional data from the fixup stream to be pushed onto | |
4772 | the stack. */ | |
3882b010 | 4773 | else if (ISLOWER (c)) |
252b5132 RH |
4774 | { |
4775 | int bits = (c - 'a') * 8; | |
4776 | for (v = 0; c > 'a'; --c) | |
4777 | v = (v << 8) | *fixup++; | |
4778 | if (varname == 'V') | |
4779 | v = sign_extend (v, bits); | |
4780 | push (v); | |
4781 | } | |
4782 | ||
4783 | /* A decimal constant. Push it on the stack. */ | |
3882b010 | 4784 | else if (ISDIGIT (c)) |
252b5132 RH |
4785 | { |
4786 | v = c - '0'; | |
3882b010 | 4787 | while (ISDIGIT (*cp)) |
252b5132 RH |
4788 | v = (v * 10) + (*cp++ - '0'); |
4789 | push (v); | |
4790 | } | |
4791 | else | |
252b5132 RH |
4792 | /* An operator. Pop two two values from the stack and |
4793 | use them as operands to the given operation. Push | |
4794 | the result of the operation back on the stack. */ | |
4795 | switch (c) | |
4796 | { | |
4797 | case '+': | |
4798 | v = pop (); | |
4799 | v += pop (); | |
4800 | push (v); | |
4801 | break; | |
4802 | case '*': | |
4803 | v = pop (); | |
4804 | v *= pop (); | |
4805 | push (v); | |
4806 | break; | |
4807 | case '<': | |
4808 | v = pop (); | |
4809 | v = pop () << v; | |
4810 | push (v); | |
4811 | break; | |
4812 | default: | |
4813 | abort (); | |
4814 | } | |
4815 | } | |
4816 | while (*cp && *cp != '='); | |
4817 | ||
4818 | /* Move over the equal operator. */ | |
4819 | cp++; | |
4820 | ||
4821 | /* Pop the RHS off the stack. */ | |
4822 | c = pop (); | |
4823 | ||
4824 | /* Perform the assignment. */ | |
4825 | var (varname) = c; | |
4826 | ||
4827 | /* Handle side effects. and special 'O' stack cases. */ | |
4828 | switch (varname) | |
4829 | { | |
4830 | /* Consume some bytes from the input space. */ | |
4831 | case 'L': | |
4832 | offset += c; | |
4833 | break; | |
4834 | /* A symbol to use in the relocation. Make a note | |
4835 | of this if we are not just counting. */ | |
4836 | case 'S': | |
4837 | if (! just_count) | |
4838 | rptr->sym_ptr_ptr = &symbols[c]; | |
4839 | break; | |
4840 | /* Argument relocation bits for a function call. */ | |
4841 | case 'R': | |
4842 | if (! just_count) | |
4843 | { | |
4844 | unsigned int tmp = var ('R'); | |
4845 | rptr->addend = 0; | |
4846 | ||
4847 | if ((som_hppa_howto_table[op].type == R_PCREL_CALL | |
4848 | && R_PCREL_CALL + 10 > op) | |
4849 | || (som_hppa_howto_table[op].type == R_ABS_CALL | |
4850 | && R_ABS_CALL + 10 > op)) | |
4851 | { | |
4852 | /* Simple encoding. */ | |
4853 | if (tmp > 4) | |
4854 | { | |
4855 | tmp -= 5; | |
4856 | rptr->addend |= 1; | |
4857 | } | |
4858 | if (tmp == 4) | |
4859 | rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2; | |
4860 | else if (tmp == 3) | |
4861 | rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4; | |
4862 | else if (tmp == 2) | |
4863 | rptr->addend |= 1 << 8 | 1 << 6; | |
4864 | else if (tmp == 1) | |
4865 | rptr->addend |= 1 << 8; | |
4866 | } | |
4867 | else | |
4868 | { | |
4869 | unsigned int tmp1, tmp2; | |
4870 | ||
4871 | /* First part is easy -- low order two bits are | |
4872 | directly copied, then shifted away. */ | |
4873 | rptr->addend = tmp & 0x3; | |
4874 | tmp >>= 2; | |
4875 | ||
4876 | /* Diving the result by 10 gives us the second | |
4877 | part. If it is 9, then the first two words | |
4878 | are a double precision paramater, else it is | |
4879 | 3 * the first arg bits + the 2nd arg bits. */ | |
4880 | tmp1 = tmp / 10; | |
4881 | tmp -= tmp1 * 10; | |
4882 | if (tmp1 == 9) | |
4883 | rptr->addend += (0xe << 6); | |
4884 | else | |
4885 | { | |
4886 | /* Get the two pieces. */ | |
4887 | tmp2 = tmp1 / 3; | |
4888 | tmp1 -= tmp2 * 3; | |
4889 | /* Put them in the addend. */ | |
4890 | rptr->addend += (tmp2 << 8) + (tmp1 << 6); | |
4891 | } | |
4892 | ||
4893 | /* What's left is the third part. It's unpacked | |
4894 | just like the second. */ | |
4895 | if (tmp == 9) | |
4896 | rptr->addend += (0xe << 2); | |
4897 | else | |
4898 | { | |
4899 | tmp2 = tmp / 3; | |
4900 | tmp -= tmp2 * 3; | |
4901 | rptr->addend += (tmp2 << 4) + (tmp << 2); | |
4902 | } | |
4903 | } | |
4904 | rptr->addend = HPPA_R_ADDEND (rptr->addend, 0); | |
4905 | } | |
4906 | break; | |
4907 | /* Handle the linker expression stack. */ | |
4908 | case 'O': | |
4909 | switch (op) | |
4910 | { | |
4911 | case R_COMP1: | |
4912 | subop = comp1_opcodes; | |
4913 | break; | |
4914 | case R_COMP2: | |
4915 | subop = comp2_opcodes; | |
4916 | break; | |
4917 | case R_COMP3: | |
4918 | subop = comp3_opcodes; | |
4919 | break; | |
4920 | default: | |
4921 | abort (); | |
4922 | } | |
4923 | while (*subop <= (unsigned char) c) | |
4924 | ++subop; | |
4925 | --subop; | |
4926 | break; | |
4927 | /* The lower 32unwind bits must be persistent. */ | |
4928 | case 'U': | |
4929 | saved_unwind_bits = var ('U'); | |
4930 | break; | |
4931 | ||
4932 | default: | |
4933 | break; | |
4934 | } | |
4935 | } | |
4936 | ||
4937 | /* If we used a previous fixup, clean up after it. */ | |
4938 | if (prev_fixup) | |
4939 | { | |
4940 | fixup = save_fixup + 1; | |
4941 | prev_fixup = 0; | |
4942 | } | |
4943 | /* Queue it. */ | |
4944 | else if (fixup > save_fixup + 1) | |
4945 | som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue); | |
4946 | ||
6fa957a9 | 4947 | /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION |
252b5132 RH |
4948 | fixups to BFD. */ |
4949 | if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE | |
4950 | && som_hppa_howto_table[op].type != R_NO_RELOCATION) | |
4951 | { | |
4952 | /* Done with a single reloction. Loop back to the top. */ | |
4953 | if (! just_count) | |
4954 | { | |
4955 | if (som_hppa_howto_table[op].type == R_ENTRY) | |
4956 | rptr->addend = var ('T'); | |
4957 | else if (som_hppa_howto_table[op].type == R_EXIT) | |
4958 | rptr->addend = var ('U'); | |
4959 | else if (som_hppa_howto_table[op].type == R_PCREL_CALL | |
4960 | || som_hppa_howto_table[op].type == R_ABS_CALL) | |
4961 | ; | |
4962 | else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL) | |
4963 | { | |
252b5132 RH |
4964 | /* Try what was specified in R_DATA_OVERRIDE first |
4965 | (if anything). Then the hard way using the | |
4966 | section contents. */ | |
4967 | rptr->addend = var ('V'); | |
4968 | ||
4969 | if (rptr->addend == 0 && !section->contents) | |
4970 | { | |
4971 | /* Got to read the damn contents first. We don't | |
b34976b6 | 4972 | bother saving the contents (yet). Add it one |
252b5132 | 4973 | day if the need arises. */ |
22bfad37 | 4974 | bfd_byte *contents; |
eea6121a AM |
4975 | if (!bfd_malloc_and_get_section (section->owner, section, |
4976 | &contents)) | |
4977 | { | |
4978 | if (contents != NULL) | |
4979 | free (contents); | |
4980 | return (unsigned) -1; | |
4981 | } | |
4982 | section->contents = contents; | |
252b5132 | 4983 | deallocate_contents = 1; |
252b5132 RH |
4984 | } |
4985 | else if (rptr->addend == 0) | |
4986 | rptr->addend = bfd_get_32 (section->owner, | |
4987 | (section->contents | |
4988 | + offset - var ('L'))); | |
6fa957a9 | 4989 | |
252b5132 RH |
4990 | } |
4991 | else | |
4992 | rptr->addend = var ('V'); | |
4993 | rptr++; | |
4994 | } | |
4995 | count++; | |
4996 | /* Now that we've handled a "full" relocation, reset | |
4997 | some state. */ | |
4998 | memset (variables, 0, sizeof (variables)); | |
4999 | memset (stack, 0, sizeof (stack)); | |
5000 | } | |
5001 | } | |
5002 | if (deallocate_contents) | |
5003 | free (section->contents); | |
5004 | ||
5005 | return count; | |
5006 | ||
5007 | #undef var | |
5008 | #undef push | |
5009 | #undef pop | |
5010 | #undef emptystack | |
5011 | } | |
5012 | ||
6fa957a9 | 5013 | /* Read in the relocs (aka fixups in SOM terms) for a section. |
252b5132 | 5014 | |
6fa957a9 | 5015 | som_get_reloc_upper_bound calls this routine with JUST_COUNT |
b34976b6 | 5016 | set to TRUE to indicate it only needs a count of the number |
252b5132 RH |
5017 | of actual relocations. */ |
5018 | ||
b34976b6 | 5019 | static bfd_boolean |
252b5132 RH |
5020 | som_slurp_reloc_table (abfd, section, symbols, just_count) |
5021 | bfd *abfd; | |
5022 | asection *section; | |
5023 | asymbol **symbols; | |
b34976b6 | 5024 | bfd_boolean just_count; |
252b5132 RH |
5025 | { |
5026 | char *external_relocs; | |
5027 | unsigned int fixup_stream_size; | |
5028 | arelent *internal_relocs; | |
5029 | unsigned int num_relocs; | |
dc810e39 | 5030 | bfd_size_type amt; |
252b5132 RH |
5031 | |
5032 | fixup_stream_size = som_section_data (section)->reloc_size; | |
5033 | /* If there were no relocations, then there is nothing to do. */ | |
5034 | if (section->reloc_count == 0) | |
b34976b6 | 5035 | return TRUE; |
252b5132 | 5036 | |
6fa957a9 | 5037 | /* If reloc_count is -1, then the relocation stream has not been |
252b5132 | 5038 | parsed. We must do so now to know how many relocations exist. */ |
dc810e39 | 5039 | if (section->reloc_count == (unsigned) -1) |
252b5132 | 5040 | { |
dc810e39 AM |
5041 | amt = fixup_stream_size; |
5042 | external_relocs = (char *) bfd_malloc (amt); | |
252b5132 | 5043 | if (external_relocs == (char *) NULL) |
b34976b6 | 5044 | return FALSE; |
6fa957a9 | 5045 | /* Read in the external forms. */ |
252b5132 RH |
5046 | if (bfd_seek (abfd, |
5047 | obj_som_reloc_filepos (abfd) + section->rel_filepos, | |
5048 | SEEK_SET) | |
5049 | != 0) | |
b34976b6 | 5050 | return FALSE; |
dc810e39 | 5051 | if (bfd_bread (external_relocs, amt, abfd) != amt) |
b34976b6 | 5052 | return FALSE; |
252b5132 RH |
5053 | |
5054 | /* Let callers know how many relocations found. | |
5055 | also save the relocation stream as we will | |
5056 | need it again. */ | |
5057 | section->reloc_count = som_set_reloc_info (external_relocs, | |
5058 | fixup_stream_size, | |
b34976b6 | 5059 | NULL, NULL, NULL, TRUE); |
252b5132 RH |
5060 | |
5061 | som_section_data (section)->reloc_stream = external_relocs; | |
5062 | } | |
5063 | ||
5064 | /* If the caller only wanted a count, then return now. */ | |
5065 | if (just_count) | |
b34976b6 | 5066 | return TRUE; |
252b5132 RH |
5067 | |
5068 | num_relocs = section->reloc_count; | |
5069 | external_relocs = som_section_data (section)->reloc_stream; | |
5070 | /* Return saved information about the relocations if it is available. */ | |
5071 | if (section->relocation != (arelent *) NULL) | |
b34976b6 | 5072 | return TRUE; |
252b5132 | 5073 | |
dc810e39 AM |
5074 | amt = num_relocs; |
5075 | amt *= sizeof (arelent); | |
5076 | internal_relocs = (arelent *) bfd_zalloc (abfd, (amt)); | |
252b5132 | 5077 | if (internal_relocs == (arelent *) NULL) |
b34976b6 | 5078 | return FALSE; |
252b5132 RH |
5079 | |
5080 | /* Process and internalize the relocations. */ | |
5081 | som_set_reloc_info (external_relocs, fixup_stream_size, | |
b34976b6 | 5082 | internal_relocs, section, symbols, FALSE); |
252b5132 RH |
5083 | |
5084 | /* We're done with the external relocations. Free them. */ | |
5085 | free (external_relocs); | |
5086 | som_section_data (section)->reloc_stream = NULL; | |
5087 | ||
5088 | /* Save our results and return success. */ | |
5089 | section->relocation = internal_relocs; | |
b34976b6 | 5090 | return TRUE; |
252b5132 RH |
5091 | } |
5092 | ||
5093 | /* Return the number of bytes required to store the relocation | |
6fa957a9 | 5094 | information associated with the given section. */ |
252b5132 RH |
5095 | |
5096 | static long | |
5097 | som_get_reloc_upper_bound (abfd, asect) | |
5098 | bfd *abfd; | |
5099 | sec_ptr asect; | |
5100 | { | |
5101 | /* If section has relocations, then read in the relocation stream | |
5102 | and parse it to determine how many relocations exist. */ | |
5103 | if (asect->flags & SEC_RELOC) | |
5104 | { | |
b34976b6 | 5105 | if (! som_slurp_reloc_table (abfd, asect, NULL, TRUE)) |
252b5132 RH |
5106 | return -1; |
5107 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
5108 | } | |
5109 | /* There are no relocations. */ | |
5110 | return 0; | |
5111 | } | |
5112 | ||
5113 | /* Convert relocations from SOM (external) form into BFD internal | |
5114 | form. Return the number of relocations. */ | |
5115 | ||
5116 | static long | |
5117 | som_canonicalize_reloc (abfd, section, relptr, symbols) | |
5118 | bfd *abfd; | |
5119 | sec_ptr section; | |
5120 | arelent **relptr; | |
5121 | asymbol **symbols; | |
5122 | { | |
5123 | arelent *tblptr; | |
5124 | int count; | |
5125 | ||
b34976b6 | 5126 | if (! som_slurp_reloc_table (abfd, section, symbols, FALSE)) |
252b5132 RH |
5127 | return -1; |
5128 | ||
5129 | count = section->reloc_count; | |
5130 | tblptr = section->relocation; | |
5131 | ||
5132 | while (count--) | |
5133 | *relptr++ = tblptr++; | |
5134 | ||
5135 | *relptr = (arelent *) NULL; | |
5136 | return section->reloc_count; | |
5137 | } | |
5138 | ||
5139 | extern const bfd_target som_vec; | |
5140 | ||
5141 | /* A hook to set up object file dependent section information. */ | |
5142 | ||
b34976b6 | 5143 | static bfd_boolean |
252b5132 RH |
5144 | som_new_section_hook (abfd, newsect) |
5145 | bfd *abfd; | |
5146 | asection *newsect; | |
5147 | { | |
dc810e39 AM |
5148 | bfd_size_type amt = sizeof (struct som_section_data_struct); |
5149 | newsect->used_by_bfd = (PTR) bfd_zalloc (abfd, amt); | |
252b5132 | 5150 | if (!newsect->used_by_bfd) |
b34976b6 | 5151 | return FALSE; |
252b5132 RH |
5152 | newsect->alignment_power = 3; |
5153 | ||
7eae7d22 | 5154 | /* We allow more than three sections internally. */ |
b34976b6 | 5155 | return TRUE; |
252b5132 RH |
5156 | } |
5157 | ||
5158 | /* Copy any private info we understand from the input symbol | |
5159 | to the output symbol. */ | |
5160 | ||
b34976b6 | 5161 | static bfd_boolean |
252b5132 RH |
5162 | som_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol) |
5163 | bfd *ibfd; | |
5164 | asymbol *isymbol; | |
5165 | bfd *obfd; | |
5166 | asymbol *osymbol; | |
5167 | { | |
5168 | struct som_symbol *input_symbol = (struct som_symbol *) isymbol; | |
5169 | struct som_symbol *output_symbol = (struct som_symbol *) osymbol; | |
5170 | ||
5171 | /* One day we may try to grok other private data. */ | |
5172 | if (ibfd->xvec->flavour != bfd_target_som_flavour | |
5173 | || obfd->xvec->flavour != bfd_target_som_flavour) | |
b34976b6 | 5174 | return FALSE; |
252b5132 RH |
5175 | |
5176 | /* The only private information we need to copy is the argument relocation | |
5177 | bits. */ | |
5178 | output_symbol->tc_data.ap.hppa_arg_reloc = | |
5179 | input_symbol->tc_data.ap.hppa_arg_reloc; | |
5180 | ||
b34976b6 | 5181 | return TRUE; |
252b5132 RH |
5182 | } |
5183 | ||
5184 | /* Copy any private info we understand from the input section | |
5185 | to the output section. */ | |
7eae7d22 | 5186 | |
b34976b6 | 5187 | static bfd_boolean |
252b5132 RH |
5188 | som_bfd_copy_private_section_data (ibfd, isection, obfd, osection) |
5189 | bfd *ibfd; | |
5190 | asection *isection; | |
5191 | bfd *obfd; | |
5192 | asection *osection; | |
5193 | { | |
dc810e39 AM |
5194 | bfd_size_type amt; |
5195 | ||
252b5132 RH |
5196 | /* One day we may try to grok other private data. */ |
5197 | if (ibfd->xvec->flavour != bfd_target_som_flavour | |
5198 | || obfd->xvec->flavour != bfd_target_som_flavour | |
5199 | || (!som_is_space (isection) && !som_is_subspace (isection))) | |
b34976b6 | 5200 | return TRUE; |
252b5132 | 5201 | |
dc810e39 | 5202 | amt = sizeof (struct som_copyable_section_data_struct); |
7eae7d22 | 5203 | som_section_data (osection)->copy_data = |
dc810e39 | 5204 | (struct som_copyable_section_data_struct *) bfd_zalloc (obfd, amt); |
252b5132 | 5205 | if (som_section_data (osection)->copy_data == NULL) |
b34976b6 | 5206 | return FALSE; |
252b5132 RH |
5207 | |
5208 | memcpy (som_section_data (osection)->copy_data, | |
5209 | som_section_data (isection)->copy_data, | |
5210 | sizeof (struct som_copyable_section_data_struct)); | |
5211 | ||
5212 | /* Reparent if necessary. */ | |
5213 | if (som_section_data (osection)->copy_data->container) | |
5214 | som_section_data (osection)->copy_data->container = | |
5215 | som_section_data (osection)->copy_data->container->output_section; | |
5216 | ||
b34976b6 | 5217 | return TRUE; |
252b5132 RH |
5218 | } |
5219 | ||
5220 | /* Copy any private info we understand from the input bfd | |
5221 | to the output bfd. */ | |
5222 | ||
b34976b6 | 5223 | static bfd_boolean |
252b5132 RH |
5224 | som_bfd_copy_private_bfd_data (ibfd, obfd) |
5225 | bfd *ibfd, *obfd; | |
5226 | { | |
5227 | /* One day we may try to grok other private data. */ | |
5228 | if (ibfd->xvec->flavour != bfd_target_som_flavour | |
5229 | || obfd->xvec->flavour != bfd_target_som_flavour) | |
b34976b6 | 5230 | return TRUE; |
252b5132 RH |
5231 | |
5232 | /* Allocate some memory to hold the data we need. */ | |
5233 | obj_som_exec_data (obfd) = (struct som_exec_data *) | |
dc810e39 | 5234 | bfd_zalloc (obfd, (bfd_size_type) sizeof (struct som_exec_data)); |
252b5132 | 5235 | if (obj_som_exec_data (obfd) == NULL) |
b34976b6 | 5236 | return FALSE; |
252b5132 RH |
5237 | |
5238 | /* Now copy the data. */ | |
5239 | memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd), | |
5240 | sizeof (struct som_exec_data)); | |
5241 | ||
b34976b6 | 5242 | return TRUE; |
252b5132 RH |
5243 | } |
5244 | ||
5245 | /* Set backend info for sections which can not be described | |
5246 | in the BFD data structures. */ | |
5247 | ||
b34976b6 | 5248 | bfd_boolean |
252b5132 RH |
5249 | bfd_som_set_section_attributes (section, defined, private, sort_key, spnum) |
5250 | asection *section; | |
5251 | int defined; | |
5252 | int private; | |
5253 | unsigned int sort_key; | |
5254 | int spnum; | |
5255 | { | |
5256 | /* Allocate memory to hold the magic information. */ | |
5257 | if (som_section_data (section)->copy_data == NULL) | |
5258 | { | |
dc810e39 | 5259 | bfd_size_type amt = sizeof (struct som_copyable_section_data_struct); |
7eae7d22 | 5260 | som_section_data (section)->copy_data = |
dc810e39 AM |
5261 | (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner, |
5262 | amt); | |
252b5132 | 5263 | if (som_section_data (section)->copy_data == NULL) |
b34976b6 | 5264 | return FALSE; |
252b5132 RH |
5265 | } |
5266 | som_section_data (section)->copy_data->sort_key = sort_key; | |
5267 | som_section_data (section)->copy_data->is_defined = defined; | |
5268 | som_section_data (section)->copy_data->is_private = private; | |
5269 | som_section_data (section)->copy_data->container = section; | |
5270 | som_section_data (section)->copy_data->space_number = spnum; | |
b34976b6 | 5271 | return TRUE; |
252b5132 RH |
5272 | } |
5273 | ||
6fa957a9 | 5274 | /* Set backend info for subsections which can not be described |
252b5132 RH |
5275 | in the BFD data structures. */ |
5276 | ||
b34976b6 | 5277 | bfd_boolean |
252b5132 | 5278 | bfd_som_set_subsection_attributes (section, container, access, |
351e2b5a DA |
5279 | sort_key, quadrant, comdat, |
5280 | common, dup_common) | |
252b5132 RH |
5281 | asection *section; |
5282 | asection *container; | |
5283 | int access; | |
5284 | unsigned int sort_key; | |
351e2b5a | 5285 | int quadrant, comdat, common, dup_common; |
252b5132 RH |
5286 | { |
5287 | /* Allocate memory to hold the magic information. */ | |
5288 | if (som_section_data (section)->copy_data == NULL) | |
5289 | { | |
dc810e39 | 5290 | bfd_size_type amt = sizeof (struct som_copyable_section_data_struct); |
7eae7d22 | 5291 | som_section_data (section)->copy_data = |
dc810e39 AM |
5292 | (struct som_copyable_section_data_struct *) bfd_zalloc (section->owner, |
5293 | amt); | |
252b5132 | 5294 | if (som_section_data (section)->copy_data == NULL) |
b34976b6 | 5295 | return FALSE; |
252b5132 RH |
5296 | } |
5297 | som_section_data (section)->copy_data->sort_key = sort_key; | |
5298 | som_section_data (section)->copy_data->access_control_bits = access; | |
5299 | som_section_data (section)->copy_data->quadrant = quadrant; | |
5300 | som_section_data (section)->copy_data->container = container; | |
351e2b5a DA |
5301 | som_section_data (section)->copy_data->is_comdat = comdat; |
5302 | som_section_data (section)->copy_data->is_common = common; | |
5303 | som_section_data (section)->copy_data->dup_common = dup_common; | |
b34976b6 | 5304 | return TRUE; |
252b5132 RH |
5305 | } |
5306 | ||
5307 | /* Set the full SOM symbol type. SOM needs far more symbol information | |
5308 | than any other object file format I'm aware of. It is mandatory | |
5309 | to be able to know if a symbol is an entry point, millicode, data, | |
5310 | code, absolute, storage request, or procedure label. If you get | |
5311 | the symbol type wrong your program will not link. */ | |
5312 | ||
5313 | void | |
5314 | bfd_som_set_symbol_type (symbol, type) | |
5315 | asymbol *symbol; | |
5316 | unsigned int type; | |
5317 | { | |
5318 | som_symbol_data (symbol)->som_type = type; | |
5319 | } | |
5320 | ||
5321 | /* Attach an auxiliary header to the BFD backend so that it may be | |
5322 | written into the object file. */ | |
7eae7d22 | 5323 | |
b34976b6 | 5324 | bfd_boolean |
252b5132 RH |
5325 | bfd_som_attach_aux_hdr (abfd, type, string) |
5326 | bfd *abfd; | |
5327 | int type; | |
5328 | char *string; | |
5329 | { | |
dc810e39 AM |
5330 | bfd_size_type amt; |
5331 | ||
252b5132 RH |
5332 | if (type == VERSION_AUX_ID) |
5333 | { | |
dc810e39 | 5334 | size_t len = strlen (string); |
252b5132 RH |
5335 | int pad = 0; |
5336 | ||
5337 | if (len % 4) | |
5338 | pad = (4 - (len % 4)); | |
dc810e39 AM |
5339 | amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad; |
5340 | obj_som_version_hdr (abfd) = | |
5341 | (struct user_string_aux_hdr *) bfd_zalloc (abfd, amt); | |
252b5132 | 5342 | if (!obj_som_version_hdr (abfd)) |
b34976b6 | 5343 | return FALSE; |
252b5132 RH |
5344 | obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID; |
5345 | obj_som_version_hdr (abfd)->header_id.length = len + pad; | |
5346 | obj_som_version_hdr (abfd)->header_id.length += sizeof (int); | |
5347 | obj_som_version_hdr (abfd)->string_length = len; | |
5348 | strncpy (obj_som_version_hdr (abfd)->user_string, string, len); | |
5349 | } | |
5350 | else if (type == COPYRIGHT_AUX_ID) | |
5351 | { | |
5352 | int len = strlen (string); | |
5353 | int pad = 0; | |
5354 | ||
5355 | if (len % 4) | |
5356 | pad = (4 - (len % 4)); | |
dc810e39 AM |
5357 | amt = sizeof (struct aux_id) + sizeof (unsigned int) + len + pad; |
5358 | obj_som_copyright_hdr (abfd) = | |
5359 | (struct copyright_aux_hdr *) bfd_zalloc (abfd, amt); | |
252b5132 | 5360 | if (!obj_som_copyright_hdr (abfd)) |
b34976b6 | 5361 | return FALSE; |
252b5132 RH |
5362 | obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID; |
5363 | obj_som_copyright_hdr (abfd)->header_id.length = len + pad; | |
5364 | obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int); | |
5365 | obj_som_copyright_hdr (abfd)->string_length = len; | |
5366 | strcpy (obj_som_copyright_hdr (abfd)->copyright, string); | |
5367 | } | |
b34976b6 | 5368 | return TRUE; |
252b5132 RH |
5369 | } |
5370 | ||
19852a2a | 5371 | /* Attach a compilation unit header to the BFD backend so that it may be |
252b5132 RH |
5372 | written into the object file. */ |
5373 | ||
b34976b6 | 5374 | bfd_boolean |
252b5132 | 5375 | bfd_som_attach_compilation_unit (abfd, name, language_name, product_id, |
7eae7d22 | 5376 | version_id) |
252b5132 RH |
5377 | bfd *abfd; |
5378 | const char *name; | |
5379 | const char *language_name; | |
5380 | const char *product_id; | |
5381 | const char *version_id; | |
5382 | { | |
dc810e39 | 5383 | COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, (bfd_size_type) COMPUNITSZ); |
252b5132 | 5384 | if (n == NULL) |
b34976b6 | 5385 | return FALSE; |
252b5132 RH |
5386 | |
5387 | #define STRDUP(f) \ | |
5388 | if (f != NULL) \ | |
5389 | { \ | |
dc810e39 | 5390 | n->f.n_name = bfd_alloc (abfd, (bfd_size_type) strlen (f) + 1); \ |
252b5132 | 5391 | if (n->f.n_name == NULL) \ |
b34976b6 | 5392 | return FALSE; \ |
252b5132 RH |
5393 | strcpy (n->f.n_name, f); \ |
5394 | } | |
5395 | ||
5396 | STRDUP (name); | |
5397 | STRDUP (language_name); | |
5398 | STRDUP (product_id); | |
5399 | STRDUP (version_id); | |
5400 | ||
5401 | #undef STRDUP | |
5402 | ||
5403 | obj_som_compilation_unit (abfd) = n; | |
5404 | ||
b34976b6 | 5405 | return TRUE; |
252b5132 RH |
5406 | } |
5407 | ||
b34976b6 | 5408 | static bfd_boolean |
252b5132 RH |
5409 | som_get_section_contents (abfd, section, location, offset, count) |
5410 | bfd *abfd; | |
5411 | sec_ptr section; | |
5412 | PTR location; | |
5413 | file_ptr offset; | |
5414 | bfd_size_type count; | |
5415 | { | |
5416 | if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0)) | |
b34976b6 | 5417 | return TRUE; |
eea6121a | 5418 | if ((bfd_size_type) (offset+count) > section->size |
dc810e39 AM |
5419 | || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0 |
5420 | || bfd_bread (location, count, abfd) != count) | |
34f304a7 | 5421 | return FALSE; /* On error. */ |
b34976b6 | 5422 | return TRUE; |
252b5132 RH |
5423 | } |
5424 | ||
b34976b6 | 5425 | static bfd_boolean |
252b5132 RH |
5426 | som_set_section_contents (abfd, section, location, offset, count) |
5427 | bfd *abfd; | |
5428 | sec_ptr section; | |
5198ba8b | 5429 | const PTR location; |
252b5132 RH |
5430 | file_ptr offset; |
5431 | bfd_size_type count; | |
5432 | { | |
82e51918 | 5433 | if (! abfd->output_has_begun) |
252b5132 RH |
5434 | { |
5435 | /* Set up fixed parts of the file, space, and subspace headers. | |
5436 | Notify the world that output has begun. */ | |
5437 | som_prep_headers (abfd); | |
b34976b6 | 5438 | abfd->output_has_begun = TRUE; |
252b5132 RH |
5439 | /* Start writing the object file. This include all the string |
5440 | tables, fixup streams, and other portions of the object file. */ | |
5441 | som_begin_writing (abfd); | |
5442 | } | |
5443 | ||
5444 | /* Only write subspaces which have "real" contents (eg. the contents | |
5445 | are not generated at run time by the OS). */ | |
5446 | if (!som_is_subspace (section) | |
5447 | || ((section->flags & SEC_HAS_CONTENTS) == 0)) | |
b34976b6 | 5448 | return TRUE; |
252b5132 RH |
5449 | |
5450 | /* Seek to the proper offset within the object file and write the | |
5451 | data. */ | |
6fa957a9 | 5452 | offset += som_section_data (section)->subspace_dict->file_loc_init_value; |
dc810e39 | 5453 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) |
b34976b6 | 5454 | return FALSE; |
252b5132 | 5455 | |
5198ba8b | 5456 | if (bfd_bwrite (location, count, abfd) != count) |
b34976b6 AM |
5457 | return FALSE; |
5458 | return TRUE; | |
252b5132 RH |
5459 | } |
5460 | ||
b34976b6 | 5461 | static bfd_boolean |
252b5132 RH |
5462 | som_set_arch_mach (abfd, arch, machine) |
5463 | bfd *abfd; | |
5464 | enum bfd_architecture arch; | |
5465 | unsigned long machine; | |
5466 | { | |
7eae7d22 | 5467 | /* Allow any architecture to be supported by the SOM backend. */ |
252b5132 RH |
5468 | return bfd_default_set_arch_mach (abfd, arch, machine); |
5469 | } | |
5470 | ||
b34976b6 | 5471 | static bfd_boolean |
252b5132 | 5472 | som_find_nearest_line (abfd, section, symbols, offset, filename_ptr, |
7eae7d22 | 5473 | functionname_ptr, line_ptr) |
7dca057b JL |
5474 | bfd *abfd ATTRIBUTE_UNUSED; |
5475 | asection *section ATTRIBUTE_UNUSED; | |
5476 | asymbol **symbols ATTRIBUTE_UNUSED; | |
5477 | bfd_vma offset ATTRIBUTE_UNUSED; | |
dc810e39 AM |
5478 | const char **filename_ptr ATTRIBUTE_UNUSED; |
5479 | const char **functionname_ptr ATTRIBUTE_UNUSED; | |
7dca057b | 5480 | unsigned int *line_ptr ATTRIBUTE_UNUSED; |
252b5132 | 5481 | { |
b34976b6 | 5482 | return FALSE; |
252b5132 RH |
5483 | } |
5484 | ||
5485 | static int | |
5486 | som_sizeof_headers (abfd, reloc) | |
7dca057b | 5487 | bfd *abfd ATTRIBUTE_UNUSED; |
b34976b6 | 5488 | bfd_boolean reloc ATTRIBUTE_UNUSED; |
252b5132 RH |
5489 | { |
5490 | (*_bfd_error_handler) (_("som_sizeof_headers unimplemented")); | |
5491 | fflush (stderr); | |
5492 | abort (); | |
b34976b6 | 5493 | return 0; |
252b5132 RH |
5494 | } |
5495 | ||
5496 | /* Return the single-character symbol type corresponding to | |
5497 | SOM section S, or '?' for an unknown SOM section. */ | |
5498 | ||
5499 | static char | |
5500 | som_section_type (s) | |
5501 | const char *s; | |
5502 | { | |
5503 | const struct section_to_type *t; | |
5504 | ||
5505 | for (t = &stt[0]; t->section; t++) | |
5506 | if (!strcmp (s, t->section)) | |
5507 | return t->type; | |
5508 | return '?'; | |
5509 | } | |
5510 | ||
5511 | static int | |
5512 | som_decode_symclass (symbol) | |
5513 | asymbol *symbol; | |
5514 | { | |
5515 | char c; | |
5516 | ||
5517 | if (bfd_is_com_section (symbol->section)) | |
5518 | return 'C'; | |
5519 | if (bfd_is_und_section (symbol->section)) | |
5520 | return 'U'; | |
5521 | if (bfd_is_ind_section (symbol->section)) | |
5522 | return 'I'; | |
10febd84 CM |
5523 | if (symbol->flags & BSF_WEAK) |
5524 | return 'W'; | |
7eae7d22 | 5525 | if (!(symbol->flags & (BSF_GLOBAL | BSF_LOCAL))) |
252b5132 RH |
5526 | return '?'; |
5527 | ||
5528 | if (bfd_is_abs_section (symbol->section) | |
5529 | || (som_symbol_data (symbol) != NULL | |
5530 | && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE)) | |
5531 | c = 'a'; | |
5532 | else if (symbol->section) | |
5533 | c = som_section_type (symbol->section->name); | |
5534 | else | |
5535 | return '?'; | |
5536 | if (symbol->flags & BSF_GLOBAL) | |
3882b010 | 5537 | c = TOUPPER (c); |
252b5132 RH |
5538 | return c; |
5539 | } | |
5540 | ||
5541 | /* Return information about SOM symbol SYMBOL in RET. */ | |
5542 | ||
5543 | static void | |
5544 | som_get_symbol_info (ignore_abfd, symbol, ret) | |
7dca057b | 5545 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
5546 | asymbol *symbol; |
5547 | symbol_info *ret; | |
5548 | { | |
5549 | ret->type = som_decode_symclass (symbol); | |
5550 | if (ret->type != 'U') | |
7eae7d22 | 5551 | ret->value = symbol->value + symbol->section->vma; |
252b5132 RH |
5552 | else |
5553 | ret->value = 0; | |
5554 | ret->name = symbol->name; | |
5555 | } | |
5556 | ||
5557 | /* Count the number of symbols in the archive symbol table. Necessary | |
5558 | so that we can allocate space for all the carsyms at once. */ | |
5559 | ||
b34976b6 | 5560 | static bfd_boolean |
252b5132 RH |
5561 | som_bfd_count_ar_symbols (abfd, lst_header, count) |
5562 | bfd *abfd; | |
5563 | struct lst_header *lst_header; | |
5564 | symindex *count; | |
5565 | { | |
5566 | unsigned int i; | |
5567 | unsigned int *hash_table = NULL; | |
dc810e39 | 5568 | bfd_size_type amt; |
252b5132 RH |
5569 | file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header); |
5570 | ||
dc810e39 AM |
5571 | amt = lst_header->hash_size; |
5572 | amt *= sizeof (unsigned int); | |
5573 | hash_table = (unsigned int *) bfd_malloc (amt); | |
252b5132 RH |
5574 | if (hash_table == NULL && lst_header->hash_size != 0) |
5575 | goto error_return; | |
5576 | ||
5577 | /* Don't forget to initialize the counter! */ | |
5578 | *count = 0; | |
5579 | ||
5580 | /* Read in the hash table. The has table is an array of 32bit file offsets | |
5581 | which point to the hash chains. */ | |
dc810e39 | 5582 | if (bfd_bread ((PTR) hash_table, amt, abfd) != amt) |
252b5132 RH |
5583 | goto error_return; |
5584 | ||
5585 | /* Walk each chain counting the number of symbols found on that particular | |
5586 | chain. */ | |
5587 | for (i = 0; i < lst_header->hash_size; i++) | |
5588 | { | |
5589 | struct lst_symbol_record lst_symbol; | |
5590 | ||
5591 | /* An empty chain has zero as it's file offset. */ | |
5592 | if (hash_table[i] == 0) | |
5593 | continue; | |
5594 | ||
5595 | /* Seek to the first symbol in this hash chain. */ | |
dc810e39 | 5596 | if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0) |
252b5132 RH |
5597 | goto error_return; |
5598 | ||
5599 | /* Read in this symbol and update the counter. */ | |
dc810e39 AM |
5600 | amt = sizeof (lst_symbol); |
5601 | if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt) | |
252b5132 RH |
5602 | goto error_return; |
5603 | ||
5604 | (*count)++; | |
5605 | ||
5606 | /* Now iterate through the rest of the symbols on this chain. */ | |
5607 | while (lst_symbol.next_entry) | |
5608 | { | |
5609 | ||
5610 | /* Seek to the next symbol. */ | |
5611 | if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET) | |
dc810e39 | 5612 | != 0) |
252b5132 RH |
5613 | goto error_return; |
5614 | ||
5615 | /* Read the symbol in and update the counter. */ | |
dc810e39 AM |
5616 | amt = sizeof (lst_symbol); |
5617 | if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt) | |
252b5132 RH |
5618 | goto error_return; |
5619 | ||
5620 | (*count)++; | |
5621 | } | |
5622 | } | |
5623 | if (hash_table != NULL) | |
5624 | free (hash_table); | |
b34976b6 | 5625 | return TRUE; |
252b5132 RH |
5626 | |
5627 | error_return: | |
5628 | if (hash_table != NULL) | |
5629 | free (hash_table); | |
b34976b6 | 5630 | return FALSE; |
252b5132 RH |
5631 | } |
5632 | ||
5633 | /* Fill in the canonical archive symbols (SYMS) from the archive described | |
5634 | by ABFD and LST_HEADER. */ | |
5635 | ||
b34976b6 | 5636 | static bfd_boolean |
252b5132 RH |
5637 | som_bfd_fill_in_ar_symbols (abfd, lst_header, syms) |
5638 | bfd *abfd; | |
5639 | struct lst_header *lst_header; | |
5640 | carsym **syms; | |
5641 | { | |
5642 | unsigned int i, len; | |
5643 | carsym *set = syms[0]; | |
5644 | unsigned int *hash_table = NULL; | |
5645 | struct som_entry *som_dict = NULL; | |
dc810e39 | 5646 | bfd_size_type amt; |
252b5132 RH |
5647 | file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header); |
5648 | ||
dc810e39 AM |
5649 | amt = lst_header->hash_size; |
5650 | amt *= sizeof (unsigned int); | |
5651 | hash_table = (unsigned int *) bfd_malloc (amt); | |
252b5132 RH |
5652 | if (hash_table == NULL && lst_header->hash_size != 0) |
5653 | goto error_return; | |
5654 | ||
252b5132 RH |
5655 | /* Read in the hash table. The has table is an array of 32bit file offsets |
5656 | which point to the hash chains. */ | |
dc810e39 | 5657 | if (bfd_bread ((PTR) hash_table, amt, abfd) != amt) |
252b5132 RH |
5658 | goto error_return; |
5659 | ||
5660 | /* Seek to and read in the SOM dictionary. We will need this to fill | |
5661 | in the carsym's filepos field. */ | |
dc810e39 AM |
5662 | if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) != 0) |
5663 | goto error_return; | |
5664 | ||
5665 | amt = lst_header->module_count; | |
5666 | amt *= sizeof (struct som_entry); | |
5667 | som_dict = (struct som_entry *) bfd_malloc (amt); | |
5668 | if (som_dict == NULL && lst_header->module_count != 0) | |
252b5132 RH |
5669 | goto error_return; |
5670 | ||
dc810e39 | 5671 | if (bfd_bread ((PTR) som_dict, amt, abfd) != amt) |
252b5132 RH |
5672 | goto error_return; |
5673 | ||
5674 | /* Walk each chain filling in the carsyms as we go along. */ | |
5675 | for (i = 0; i < lst_header->hash_size; i++) | |
5676 | { | |
5677 | struct lst_symbol_record lst_symbol; | |
5678 | ||
5679 | /* An empty chain has zero as it's file offset. */ | |
5680 | if (hash_table[i] == 0) | |
5681 | continue; | |
5682 | ||
5683 | /* Seek to and read the first symbol on the chain. */ | |
dc810e39 | 5684 | if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) != 0) |
252b5132 RH |
5685 | goto error_return; |
5686 | ||
dc810e39 AM |
5687 | amt = sizeof (lst_symbol); |
5688 | if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt) | |
252b5132 RH |
5689 | goto error_return; |
5690 | ||
5691 | /* Get the name of the symbol, first get the length which is stored | |
5692 | as a 32bit integer just before the symbol. | |
5693 | ||
5694 | One might ask why we don't just read in the entire string table | |
5695 | and index into it. Well, according to the SOM ABI the string | |
5696 | index can point *anywhere* in the archive to save space, so just | |
5697 | using the string table would not be safe. */ | |
5698 | if (bfd_seek (abfd, lst_filepos + lst_header->string_loc | |
dc810e39 | 5699 | + lst_symbol.name.n_strx - 4, SEEK_SET) != 0) |
252b5132 RH |
5700 | goto error_return; |
5701 | ||
dc810e39 | 5702 | if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4) |
252b5132 RH |
5703 | goto error_return; |
5704 | ||
5705 | /* Allocate space for the name and null terminate it too. */ | |
dc810e39 | 5706 | set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1); |
252b5132 RH |
5707 | if (!set->name) |
5708 | goto error_return; | |
dc810e39 | 5709 | if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len) |
252b5132 RH |
5710 | goto error_return; |
5711 | ||
5712 | set->name[len] = 0; | |
5713 | ||
5714 | /* Fill in the file offset. Note that the "location" field points | |
5715 | to the SOM itself, not the ar_hdr in front of it. */ | |
5716 | set->file_offset = som_dict[lst_symbol.som_index].location | |
5717 | - sizeof (struct ar_hdr); | |
5718 | ||
5719 | /* Go to the next symbol. */ | |
5720 | set++; | |
5721 | ||
5722 | /* Iterate through the rest of the chain. */ | |
5723 | while (lst_symbol.next_entry) | |
5724 | { | |
5725 | /* Seek to the next symbol and read it in. */ | |
dc810e39 AM |
5726 | if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET) |
5727 | != 0) | |
252b5132 RH |
5728 | goto error_return; |
5729 | ||
dc810e39 AM |
5730 | amt = sizeof (lst_symbol); |
5731 | if (bfd_bread ((PTR) &lst_symbol, amt, abfd) != amt) | |
252b5132 RH |
5732 | goto error_return; |
5733 | ||
5734 | /* Seek to the name length & string and read them in. */ | |
6fa957a9 | 5735 | if (bfd_seek (abfd, lst_filepos + lst_header->string_loc |
dc810e39 | 5736 | + lst_symbol.name.n_strx - 4, SEEK_SET) != 0) |
252b5132 RH |
5737 | goto error_return; |
5738 | ||
dc810e39 | 5739 | if (bfd_bread (&len, (bfd_size_type) 4, abfd) != 4) |
252b5132 RH |
5740 | goto error_return; |
5741 | ||
5742 | /* Allocate space for the name and null terminate it too. */ | |
dc810e39 | 5743 | set->name = bfd_zalloc (abfd, (bfd_size_type) len + 1); |
252b5132 RH |
5744 | if (!set->name) |
5745 | goto error_return; | |
5746 | ||
dc810e39 | 5747 | if (bfd_bread (set->name, (bfd_size_type) len, abfd) != len) |
252b5132 RH |
5748 | goto error_return; |
5749 | set->name[len] = 0; | |
5750 | ||
5751 | /* Fill in the file offset. Note that the "location" field points | |
5752 | to the SOM itself, not the ar_hdr in front of it. */ | |
5753 | set->file_offset = som_dict[lst_symbol.som_index].location | |
5754 | - sizeof (struct ar_hdr); | |
5755 | ||
5756 | /* Go on to the next symbol. */ | |
5757 | set++; | |
5758 | } | |
5759 | } | |
6fa957a9 | 5760 | /* If we haven't died by now, then we successfully read the entire |
252b5132 RH |
5761 | archive symbol table. */ |
5762 | if (hash_table != NULL) | |
5763 | free (hash_table); | |
5764 | if (som_dict != NULL) | |
5765 | free (som_dict); | |
b34976b6 | 5766 | return TRUE; |
252b5132 RH |
5767 | |
5768 | error_return: | |
5769 | if (hash_table != NULL) | |
5770 | free (hash_table); | |
5771 | if (som_dict != NULL) | |
5772 | free (som_dict); | |
b34976b6 | 5773 | return FALSE; |
252b5132 RH |
5774 | } |
5775 | ||
5776 | /* Read in the LST from the archive. */ | |
7eae7d22 | 5777 | |
b34976b6 | 5778 | static bfd_boolean |
252b5132 RH |
5779 | som_slurp_armap (abfd) |
5780 | bfd *abfd; | |
5781 | { | |
5782 | struct lst_header lst_header; | |
5783 | struct ar_hdr ar_header; | |
5784 | unsigned int parsed_size; | |
5785 | struct artdata *ardata = bfd_ardata (abfd); | |
5786 | char nextname[17]; | |
dc810e39 AM |
5787 | bfd_size_type amt = 16; |
5788 | int i = bfd_bread ((PTR) nextname, amt, abfd); | |
252b5132 RH |
5789 | |
5790 | /* Special cases. */ | |
5791 | if (i == 0) | |
b34976b6 | 5792 | return TRUE; |
252b5132 | 5793 | if (i != 16) |
b34976b6 | 5794 | return FALSE; |
252b5132 | 5795 | |
dc810e39 | 5796 | if (bfd_seek (abfd, (file_ptr) -16, SEEK_CUR) != 0) |
b34976b6 | 5797 | return FALSE; |
252b5132 RH |
5798 | |
5799 | /* For archives without .o files there is no symbol table. */ | |
5800 | if (strncmp (nextname, "/ ", 16)) | |
5801 | { | |
b34976b6 AM |
5802 | bfd_has_map (abfd) = FALSE; |
5803 | return TRUE; | |
252b5132 RH |
5804 | } |
5805 | ||
5806 | /* Read in and sanity check the archive header. */ | |
dc810e39 AM |
5807 | amt = sizeof (struct ar_hdr); |
5808 | if (bfd_bread ((PTR) &ar_header, amt, abfd) != amt) | |
b34976b6 | 5809 | return FALSE; |
252b5132 RH |
5810 | |
5811 | if (strncmp (ar_header.ar_fmag, ARFMAG, 2)) | |
5812 | { | |
5813 | bfd_set_error (bfd_error_malformed_archive); | |
b34976b6 | 5814 | return FALSE; |
252b5132 RH |
5815 | } |
5816 | ||
5817 | /* How big is the archive symbol table entry? */ | |
5818 | errno = 0; | |
5819 | parsed_size = strtol (ar_header.ar_size, NULL, 10); | |
5820 | if (errno != 0) | |
5821 | { | |
5822 | bfd_set_error (bfd_error_malformed_archive); | |
b34976b6 | 5823 | return FALSE; |
252b5132 RH |
5824 | } |
5825 | ||
5826 | /* Save off the file offset of the first real user data. */ | |
5827 | ardata->first_file_filepos = bfd_tell (abfd) + parsed_size; | |
5828 | ||
5829 | /* Read in the library symbol table. We'll make heavy use of this | |
5830 | in just a minute. */ | |
dc810e39 AM |
5831 | amt = sizeof (struct lst_header); |
5832 | if (bfd_bread ((PTR) &lst_header, amt, abfd) != amt) | |
b34976b6 | 5833 | return FALSE; |
252b5132 RH |
5834 | |
5835 | /* Sanity check. */ | |
5836 | if (lst_header.a_magic != LIBMAGIC) | |
5837 | { | |
5838 | bfd_set_error (bfd_error_malformed_archive); | |
b34976b6 | 5839 | return FALSE; |
252b5132 RH |
5840 | } |
5841 | ||
5842 | /* Count the number of symbols in the library symbol table. */ | |
82e51918 | 5843 | if (! som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count)) |
b34976b6 | 5844 | return FALSE; |
252b5132 RH |
5845 | |
5846 | /* Get back to the start of the library symbol table. */ | |
dc810e39 AM |
5847 | if (bfd_seek (abfd, (ardata->first_file_filepos - parsed_size |
5848 | + sizeof (struct lst_header)), SEEK_SET) != 0) | |
b34976b6 | 5849 | return FALSE; |
252b5132 | 5850 | |
7dee875e | 5851 | /* Initialize the cache and allocate space for the library symbols. */ |
252b5132 | 5852 | ardata->cache = 0; |
dc810e39 AM |
5853 | amt = ardata->symdef_count; |
5854 | amt *= sizeof (carsym); | |
5855 | ardata->symdefs = (carsym *) bfd_alloc (abfd, amt); | |
252b5132 | 5856 | if (!ardata->symdefs) |
b34976b6 | 5857 | return FALSE; |
252b5132 RH |
5858 | |
5859 | /* Now fill in the canonical archive symbols. */ | |
82e51918 | 5860 | if (! som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs)) |
b34976b6 | 5861 | return FALSE; |
252b5132 RH |
5862 | |
5863 | /* Seek back to the "first" file in the archive. Note the "first" | |
5864 | file may be the extended name table. */ | |
dc810e39 | 5865 | if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) != 0) |
b34976b6 | 5866 | return FALSE; |
252b5132 RH |
5867 | |
5868 | /* Notify the generic archive code that we have a symbol map. */ | |
b34976b6 AM |
5869 | bfd_has_map (abfd) = TRUE; |
5870 | return TRUE; | |
252b5132 RH |
5871 | } |
5872 | ||
5873 | /* Begin preparing to write a SOM library symbol table. | |
5874 | ||
5875 | As part of the prep work we need to determine the number of symbols | |
5876 | and the size of the associated string section. */ | |
5877 | ||
b34976b6 | 5878 | static bfd_boolean |
252b5132 RH |
5879 | som_bfd_prep_for_ar_write (abfd, num_syms, stringsize) |
5880 | bfd *abfd; | |
5881 | unsigned int *num_syms, *stringsize; | |
5882 | { | |
5883 | bfd *curr_bfd = abfd->archive_head; | |
5884 | ||
5885 | /* Some initialization. */ | |
5886 | *num_syms = 0; | |
5887 | *stringsize = 0; | |
5888 | ||
5889 | /* Iterate over each BFD within this archive. */ | |
5890 | while (curr_bfd != NULL) | |
5891 | { | |
5892 | unsigned int curr_count, i; | |
5893 | som_symbol_type *sym; | |
5894 | ||
5895 | /* Don't bother for non-SOM objects. */ | |
5896 | if (curr_bfd->format != bfd_object | |
5897 | || curr_bfd->xvec->flavour != bfd_target_som_flavour) | |
5898 | { | |
5899 | curr_bfd = curr_bfd->next; | |
5900 | continue; | |
5901 | } | |
5902 | ||
5903 | /* Make sure the symbol table has been read, then snag a pointer | |
5904 | to it. It's a little slimey to grab the symbols via obj_som_symtab, | |
5905 | but doing so avoids allocating lots of extra memory. */ | |
82e51918 | 5906 | if (! som_slurp_symbol_table (curr_bfd)) |
b34976b6 | 5907 | return FALSE; |
252b5132 RH |
5908 | |
5909 | sym = obj_som_symtab (curr_bfd); | |
5910 | curr_count = bfd_get_symcount (curr_bfd); | |
5911 | ||
5912 | /* Examine each symbol to determine if it belongs in the | |
5913 | library symbol table. */ | |
5914 | for (i = 0; i < curr_count; i++, sym++) | |
5915 | { | |
5916 | struct som_misc_symbol_info info; | |
5917 | ||
5918 | /* Derive SOM information from the BFD symbol. */ | |
5919 | som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info); | |
5920 | ||
5921 | /* Should we include this symbol? */ | |
5922 | if (info.symbol_type == ST_NULL | |
5923 | || info.symbol_type == ST_SYM_EXT | |
5924 | || info.symbol_type == ST_ARG_EXT) | |
5925 | continue; | |
5926 | ||
5927 | /* Only global symbols and unsatisfied commons. */ | |
5928 | if (info.symbol_scope != SS_UNIVERSAL | |
5929 | && info.symbol_type != ST_STORAGE) | |
5930 | continue; | |
5931 | ||
5932 | /* Do no include undefined symbols. */ | |
5933 | if (bfd_is_und_section (sym->symbol.section)) | |
5934 | continue; | |
5935 | ||
5936 | /* Bump the various counters, being careful to honor | |
5937 | alignment considerations in the string table. */ | |
5938 | (*num_syms)++; | |
5939 | *stringsize = *stringsize + strlen (sym->symbol.name) + 5; | |
5940 | while (*stringsize % 4) | |
5941 | (*stringsize)++; | |
5942 | } | |
5943 | ||
5944 | curr_bfd = curr_bfd->next; | |
5945 | } | |
b34976b6 | 5946 | return TRUE; |
252b5132 RH |
5947 | } |
5948 | ||
5949 | /* Hash a symbol name based on the hashing algorithm presented in the | |
5950 | SOM ABI. */ | |
7eae7d22 | 5951 | |
252b5132 RH |
5952 | static unsigned int |
5953 | som_bfd_ar_symbol_hash (symbol) | |
5954 | asymbol *symbol; | |
5955 | { | |
5956 | unsigned int len = strlen (symbol->name); | |
5957 | ||
5958 | /* Names with length 1 are special. */ | |
5959 | if (len == 1) | |
5960 | return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0]; | |
5961 | ||
5962 | return ((len & 0x7f) << 24) | (symbol->name[1] << 16) | |
7eae7d22 | 5963 | | (symbol->name[len - 2] << 8) | symbol->name[len - 1]; |
252b5132 RH |
5964 | } |
5965 | ||
5966 | /* Do the bulk of the work required to write the SOM library | |
5967 | symbol table. */ | |
6fa957a9 | 5968 | |
b34976b6 | 5969 | static bfd_boolean |
252b5132 RH |
5970 | som_bfd_ar_write_symbol_stuff (abfd, nsyms, string_size, lst, elength) |
5971 | bfd *abfd; | |
5972 | unsigned int nsyms, string_size; | |
5973 | struct lst_header lst; | |
5974 | unsigned elength; | |
5975 | { | |
5976 | file_ptr lst_filepos; | |
5977 | char *strings = NULL, *p; | |
5978 | struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym; | |
5979 | bfd *curr_bfd; | |
5980 | unsigned int *hash_table = NULL; | |
5981 | struct som_entry *som_dict = NULL; | |
5982 | struct lst_symbol_record **last_hash_entry = NULL; | |
5983 | unsigned int curr_som_offset, som_index = 0; | |
dc810e39 | 5984 | bfd_size_type amt; |
252b5132 | 5985 | |
dc810e39 AM |
5986 | amt = lst.hash_size; |
5987 | amt *= sizeof (unsigned int); | |
9bab7074 | 5988 | hash_table = (unsigned int *) bfd_zmalloc (amt); |
252b5132 RH |
5989 | if (hash_table == NULL && lst.hash_size != 0) |
5990 | goto error_return; | |
dc810e39 AM |
5991 | |
5992 | amt = lst.module_count; | |
5993 | amt *= sizeof (struct som_entry); | |
9bab7074 | 5994 | som_dict = (struct som_entry *) bfd_zmalloc (amt); |
252b5132 RH |
5995 | if (som_dict == NULL && lst.module_count != 0) |
5996 | goto error_return; | |
5997 | ||
dc810e39 AM |
5998 | amt = lst.hash_size; |
5999 | amt *= sizeof (struct lst_symbol_record *); | |
9bab7074 | 6000 | last_hash_entry = ((struct lst_symbol_record **) bfd_zmalloc (amt)); |
252b5132 RH |
6001 | if (last_hash_entry == NULL && lst.hash_size != 0) |
6002 | goto error_return; | |
6003 | ||
6004 | /* Lots of fields are file positions relative to the start | |
6005 | of the lst record. So save its location. */ | |
6006 | lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header); | |
6007 | ||
252b5132 RH |
6008 | /* Symbols have som_index fields, so we have to keep track of the |
6009 | index of each SOM in the archive. | |
6010 | ||
6011 | The SOM dictionary has (among other things) the absolute file | |
6012 | position for the SOM which a particular dictionary entry | |
6013 | describes. We have to compute that information as we iterate | |
6014 | through the SOMs/symbols. */ | |
6015 | som_index = 0; | |
6016 | ||
6017 | /* We add in the size of the archive header twice as the location | |
6018 | in the SOM dictionary is the actual offset of the SOM, not the | |
6019 | archive header before the SOM. */ | |
6020 | curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end; | |
6021 | ||
6022 | /* Make room for the archive header and the contents of the | |
6023 | extended string table. Note that elength includes the size | |
6024 | of the archive header for the extended name table! */ | |
6025 | if (elength) | |
6026 | curr_som_offset += elength; | |
6027 | ||
6028 | /* Make sure we're properly aligned. */ | |
6029 | curr_som_offset = (curr_som_offset + 0x1) & ~0x1; | |
6030 | ||
6fa957a9 | 6031 | /* FIXME should be done with buffers just like everything else... */ |
dc810e39 AM |
6032 | amt = nsyms; |
6033 | amt *= sizeof (struct lst_symbol_record); | |
6034 | lst_syms = bfd_malloc (amt); | |
252b5132 RH |
6035 | if (lst_syms == NULL && nsyms != 0) |
6036 | goto error_return; | |
dc810e39 | 6037 | strings = bfd_malloc ((bfd_size_type) string_size); |
252b5132 RH |
6038 | if (strings == NULL && string_size != 0) |
6039 | goto error_return; | |
6040 | ||
6041 | p = strings; | |
6042 | curr_lst_sym = lst_syms; | |
6043 | ||
6044 | curr_bfd = abfd->archive_head; | |
6045 | while (curr_bfd != NULL) | |
6046 | { | |
6047 | unsigned int curr_count, i; | |
6048 | som_symbol_type *sym; | |
6049 | ||
6050 | /* Don't bother for non-SOM objects. */ | |
6051 | if (curr_bfd->format != bfd_object | |
6052 | || curr_bfd->xvec->flavour != bfd_target_som_flavour) | |
6053 | { | |
6054 | curr_bfd = curr_bfd->next; | |
6055 | continue; | |
6056 | } | |
6057 | ||
6058 | /* Make sure the symbol table has been read, then snag a pointer | |
6059 | to it. It's a little slimey to grab the symbols via obj_som_symtab, | |
6060 | but doing so avoids allocating lots of extra memory. */ | |
82e51918 | 6061 | if (! som_slurp_symbol_table (curr_bfd)) |
252b5132 RH |
6062 | goto error_return; |
6063 | ||
6064 | sym = obj_som_symtab (curr_bfd); | |
6065 | curr_count = bfd_get_symcount (curr_bfd); | |
6066 | ||
6067 | for (i = 0; i < curr_count; i++, sym++) | |
6068 | { | |
6069 | struct som_misc_symbol_info info; | |
6070 | ||
6071 | /* Derive SOM information from the BFD symbol. */ | |
6072 | som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info); | |
6073 | ||
6074 | /* Should we include this symbol? */ | |
6075 | if (info.symbol_type == ST_NULL | |
6076 | || info.symbol_type == ST_SYM_EXT | |
6077 | || info.symbol_type == ST_ARG_EXT) | |
6078 | continue; | |
6079 | ||
6080 | /* Only global symbols and unsatisfied commons. */ | |
6081 | if (info.symbol_scope != SS_UNIVERSAL | |
6082 | && info.symbol_type != ST_STORAGE) | |
6083 | continue; | |
6084 | ||
6085 | /* Do no include undefined symbols. */ | |
6086 | if (bfd_is_und_section (sym->symbol.section)) | |
6087 | continue; | |
6088 | ||
6089 | /* If this is the first symbol from this SOM, then update | |
6090 | the SOM dictionary too. */ | |
6091 | if (som_dict[som_index].location == 0) | |
6092 | { | |
6093 | som_dict[som_index].location = curr_som_offset; | |
6094 | som_dict[som_index].length = arelt_size (curr_bfd); | |
6095 | } | |
6096 | ||
6097 | /* Fill in the lst symbol record. */ | |
6098 | curr_lst_sym->hidden = 0; | |
ba20314e | 6099 | curr_lst_sym->secondary_def = info.secondary_def; |
252b5132 RH |
6100 | curr_lst_sym->symbol_type = info.symbol_type; |
6101 | curr_lst_sym->symbol_scope = info.symbol_scope; | |
6102 | curr_lst_sym->check_level = 0; | |
6103 | curr_lst_sym->must_qualify = 0; | |
6104 | curr_lst_sym->initially_frozen = 0; | |
6105 | curr_lst_sym->memory_resident = 0; | |
6106 | curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section); | |
351e2b5a | 6107 | curr_lst_sym->dup_common = info.dup_common; |
252b5132 RH |
6108 | curr_lst_sym->xleast = 3; |
6109 | curr_lst_sym->arg_reloc = info.arg_reloc; | |
6110 | curr_lst_sym->name.n_strx = p - strings + 4; | |
6111 | curr_lst_sym->qualifier_name.n_strx = 0; | |
6112 | curr_lst_sym->symbol_info = info.symbol_info; | |
6113 | curr_lst_sym->symbol_value = info.symbol_value | info.priv_level; | |
6114 | curr_lst_sym->symbol_descriptor = 0; | |
6115 | curr_lst_sym->reserved = 0; | |
6116 | curr_lst_sym->som_index = som_index; | |
6117 | curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol); | |
6118 | curr_lst_sym->next_entry = 0; | |
6119 | ||
6120 | /* Insert into the hash table. */ | |
6121 | if (hash_table[curr_lst_sym->symbol_key % lst.hash_size]) | |
6122 | { | |
6123 | struct lst_symbol_record *tmp; | |
6124 | ||
6125 | /* There is already something at the head of this hash chain, | |
6126 | so tack this symbol onto the end of the chain. */ | |
6127 | tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]; | |
6128 | tmp->next_entry | |
6129 | = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record) | |
6fa957a9 | 6130 | + lst.hash_size * 4 |
252b5132 RH |
6131 | + lst.module_count * sizeof (struct som_entry) |
6132 | + sizeof (struct lst_header); | |
6133 | } | |
6134 | else | |
6135 | { | |
6136 | /* First entry in this hash chain. */ | |
6137 | hash_table[curr_lst_sym->symbol_key % lst.hash_size] | |
6138 | = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record) | |
6fa957a9 | 6139 | + lst.hash_size * 4 |
252b5132 RH |
6140 | + lst.module_count * sizeof (struct som_entry) |
6141 | + sizeof (struct lst_header); | |
6142 | } | |
6143 | ||
6144 | /* Keep track of the last symbol we added to this chain so we can | |
6145 | easily update its next_entry pointer. */ | |
6146 | last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size] | |
6147 | = curr_lst_sym; | |
6148 | ||
252b5132 RH |
6149 | /* Update the string table. */ |
6150 | bfd_put_32 (abfd, strlen (sym->symbol.name), p); | |
6151 | p += 4; | |
6152 | strcpy (p, sym->symbol.name); | |
6153 | p += strlen (sym->symbol.name) + 1; | |
7eae7d22 | 6154 | while ((int) p % 4) |
252b5132 RH |
6155 | { |
6156 | bfd_put_8 (abfd, 0, p); | |
6157 | p++; | |
6158 | } | |
6159 | ||
6160 | /* Head to the next symbol. */ | |
6161 | curr_lst_sym++; | |
6162 | } | |
6163 | ||
6164 | /* Keep track of where each SOM will finally reside; then look | |
6165 | at the next BFD. */ | |
6166 | curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr); | |
6fa957a9 | 6167 | |
252b5132 RH |
6168 | /* A particular object in the archive may have an odd length; the |
6169 | linker requires objects begin on an even boundary. So round | |
6170 | up the current offset as necessary. */ | |
dc810e39 | 6171 | curr_som_offset = (curr_som_offset + 0x1) &~ (unsigned) 1; |
252b5132 RH |
6172 | curr_bfd = curr_bfd->next; |
6173 | som_index++; | |
6174 | } | |
6175 | ||
6176 | /* Now scribble out the hash table. */ | |
dc810e39 AM |
6177 | amt = lst.hash_size * 4; |
6178 | if (bfd_bwrite ((PTR) hash_table, amt, abfd) != amt) | |
252b5132 RH |
6179 | goto error_return; |
6180 | ||
6181 | /* Then the SOM dictionary. */ | |
dc810e39 AM |
6182 | amt = lst.module_count * sizeof (struct som_entry); |
6183 | if (bfd_bwrite ((PTR) som_dict, amt, abfd) != amt) | |
252b5132 RH |
6184 | goto error_return; |
6185 | ||
6186 | /* The library symbols. */ | |
dc810e39 AM |
6187 | amt = nsyms * sizeof (struct lst_symbol_record); |
6188 | if (bfd_bwrite ((PTR) lst_syms, amt, abfd) != amt) | |
252b5132 RH |
6189 | goto error_return; |
6190 | ||
6191 | /* And finally the strings. */ | |
dc810e39 AM |
6192 | amt = string_size; |
6193 | if (bfd_bwrite ((PTR) strings, amt, abfd) != amt) | |
252b5132 RH |
6194 | goto error_return; |
6195 | ||
6196 | if (hash_table != NULL) | |
6197 | free (hash_table); | |
6198 | if (som_dict != NULL) | |
6199 | free (som_dict); | |
6200 | if (last_hash_entry != NULL) | |
6201 | free (last_hash_entry); | |
6202 | if (lst_syms != NULL) | |
6203 | free (lst_syms); | |
6204 | if (strings != NULL) | |
6205 | free (strings); | |
b34976b6 | 6206 | return TRUE; |
252b5132 RH |
6207 | |
6208 | error_return: | |
6209 | if (hash_table != NULL) | |
6210 | free (hash_table); | |
6211 | if (som_dict != NULL) | |
6212 | free (som_dict); | |
6213 | if (last_hash_entry != NULL) | |
6214 | free (last_hash_entry); | |
6215 | if (lst_syms != NULL) | |
6216 | free (lst_syms); | |
6217 | if (strings != NULL) | |
6218 | free (strings); | |
6219 | ||
b34976b6 | 6220 | return FALSE; |
252b5132 RH |
6221 | } |
6222 | ||
6223 | /* Write out the LST for the archive. | |
6224 | ||
6225 | You'll never believe this is really how armaps are handled in SOM... */ | |
6226 | ||
b34976b6 | 6227 | static bfd_boolean |
252b5132 RH |
6228 | som_write_armap (abfd, elength, map, orl_count, stridx) |
6229 | bfd *abfd; | |
6230 | unsigned int elength; | |
7dca057b JL |
6231 | struct orl *map ATTRIBUTE_UNUSED; |
6232 | unsigned int orl_count ATTRIBUTE_UNUSED; | |
6233 | int stridx ATTRIBUTE_UNUSED; | |
252b5132 RH |
6234 | { |
6235 | bfd *curr_bfd; | |
6236 | struct stat statbuf; | |
6237 | unsigned int i, lst_size, nsyms, stringsize; | |
6238 | struct ar_hdr hdr; | |
6239 | struct lst_header lst; | |
6240 | int *p; | |
dc810e39 | 6241 | bfd_size_type amt; |
6fa957a9 | 6242 | |
252b5132 RH |
6243 | /* We'll use this for the archive's date and mode later. */ |
6244 | if (stat (abfd->filename, &statbuf) != 0) | |
6245 | { | |
6246 | bfd_set_error (bfd_error_system_call); | |
b34976b6 | 6247 | return FALSE; |
252b5132 RH |
6248 | } |
6249 | /* Fudge factor. */ | |
6250 | bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60; | |
6251 | ||
6252 | /* Account for the lst header first. */ | |
6253 | lst_size = sizeof (struct lst_header); | |
6254 | ||
6255 | /* Start building the LST header. */ | |
6256 | /* FIXME: Do we need to examine each element to determine the | |
6257 | largest id number? */ | |
6258 | lst.system_id = CPU_PA_RISC1_0; | |
6259 | lst.a_magic = LIBMAGIC; | |
6260 | lst.version_id = VERSION_ID; | |
6261 | lst.file_time.secs = 0; | |
6262 | lst.file_time.nanosecs = 0; | |
6263 | ||
6264 | lst.hash_loc = lst_size; | |
6265 | lst.hash_size = SOM_LST_HASH_SIZE; | |
6266 | ||
6267 | /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */ | |
6268 | lst_size += 4 * SOM_LST_HASH_SIZE; | |
6269 | ||
6270 | /* We need to count the number of SOMs in this archive. */ | |
6271 | curr_bfd = abfd->archive_head; | |
6272 | lst.module_count = 0; | |
6273 | while (curr_bfd != NULL) | |
6274 | { | |
6275 | /* Only true SOM objects count. */ | |
6276 | if (curr_bfd->format == bfd_object | |
6277 | && curr_bfd->xvec->flavour == bfd_target_som_flavour) | |
6278 | lst.module_count++; | |
6279 | curr_bfd = curr_bfd->next; | |
6280 | } | |
6281 | lst.module_limit = lst.module_count; | |
6282 | lst.dir_loc = lst_size; | |
6283 | lst_size += sizeof (struct som_entry) * lst.module_count; | |
6284 | ||
6285 | /* We don't support import/export tables, auxiliary headers, | |
6286 | or free lists yet. Make the linker work a little harder | |
6287 | to make our life easier. */ | |
6288 | ||
6289 | lst.export_loc = 0; | |
6290 | lst.export_count = 0; | |
6291 | lst.import_loc = 0; | |
6292 | lst.aux_loc = 0; | |
6293 | lst.aux_size = 0; | |
6294 | ||
6295 | /* Count how many symbols we will have on the hash chains and the | |
6296 | size of the associated string table. */ | |
82e51918 | 6297 | if (! som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize)) |
b34976b6 | 6298 | return FALSE; |
252b5132 RH |
6299 | |
6300 | lst_size += sizeof (struct lst_symbol_record) * nsyms; | |
6301 | ||
6302 | /* For the string table. One day we might actually use this info | |
6303 | to avoid small seeks/reads when reading archives. */ | |
6304 | lst.string_loc = lst_size; | |
6305 | lst.string_size = stringsize; | |
6306 | lst_size += stringsize; | |
6307 | ||
6308 | /* SOM ABI says this must be zero. */ | |
6309 | lst.free_list = 0; | |
6310 | lst.file_end = lst_size; | |
6311 | ||
6312 | /* Compute the checksum. Must happen after the entire lst header | |
6313 | has filled in. */ | |
7eae7d22 | 6314 | p = (int *) &lst; |
252b5132 | 6315 | lst.checksum = 0; |
7eae7d22 | 6316 | for (i = 0; i < sizeof (struct lst_header) / sizeof (int) - 1; i++) |
252b5132 RH |
6317 | lst.checksum ^= *p++; |
6318 | ||
6319 | sprintf (hdr.ar_name, "/ "); | |
6320 | sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp); | |
6321 | sprintf (hdr.ar_uid, "%ld", (long) getuid ()); | |
6322 | sprintf (hdr.ar_gid, "%ld", (long) getgid ()); | |
6323 | sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode); | |
6324 | sprintf (hdr.ar_size, "%-10d", (int) lst_size); | |
6325 | hdr.ar_fmag[0] = '`'; | |
6326 | hdr.ar_fmag[1] = '\012'; | |
6327 | ||
6328 | /* Turn any nulls into spaces. */ | |
6329 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
6330 | if (((char *) (&hdr))[i] == '\0') | |
6331 | (((char *) (&hdr))[i]) = ' '; | |
6332 | ||
6333 | /* Scribble out the ar header. */ | |
dc810e39 AM |
6334 | amt = sizeof (struct ar_hdr); |
6335 | if (bfd_bwrite ((PTR) &hdr, amt, abfd) != amt) | |
b34976b6 | 6336 | return FALSE; |
252b5132 RH |
6337 | |
6338 | /* Now scribble out the lst header. */ | |
dc810e39 AM |
6339 | amt = sizeof (struct lst_header); |
6340 | if (bfd_bwrite ((PTR) &lst, amt, abfd) != amt) | |
b34976b6 | 6341 | return FALSE; |
252b5132 RH |
6342 | |
6343 | /* Build and write the armap. */ | |
dc810e39 | 6344 | if (!som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength)) |
b34976b6 | 6345 | return FALSE; |
6fa957a9 | 6346 | |
252b5132 | 6347 | /* Done. */ |
b34976b6 | 6348 | return TRUE; |
252b5132 RH |
6349 | } |
6350 | ||
6351 | /* Free all information we have cached for this BFD. We can always | |
6352 | read it again later if we need it. */ | |
6353 | ||
b34976b6 | 6354 | static bfd_boolean |
252b5132 RH |
6355 | som_bfd_free_cached_info (abfd) |
6356 | bfd *abfd; | |
6357 | { | |
6358 | asection *o; | |
6359 | ||
6360 | if (bfd_get_format (abfd) != bfd_object) | |
b34976b6 | 6361 | return TRUE; |
252b5132 RH |
6362 | |
6363 | #define FREE(x) if (x != NULL) { free (x); x = NULL; } | |
6364 | /* Free the native string and symbol tables. */ | |
6365 | FREE (obj_som_symtab (abfd)); | |
6366 | FREE (obj_som_stringtab (abfd)); | |
6367 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
6368 | { | |
6369 | /* Free the native relocations. */ | |
dc810e39 | 6370 | o->reloc_count = (unsigned) -1; |
252b5132 RH |
6371 | FREE (som_section_data (o)->reloc_stream); |
6372 | /* Free the generic relocations. */ | |
6373 | FREE (o->relocation); | |
6374 | } | |
6375 | #undef FREE | |
6376 | ||
b34976b6 | 6377 | return TRUE; |
252b5132 RH |
6378 | } |
6379 | ||
6fa957a9 | 6380 | /* End of miscellaneous support functions. */ |
252b5132 RH |
6381 | |
6382 | /* Linker support functions. */ | |
7eae7d22 | 6383 | |
b34976b6 | 6384 | static bfd_boolean |
252b5132 | 6385 | som_bfd_link_split_section (abfd, sec) |
7dca057b | 6386 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
6387 | asection *sec; |
6388 | { | |
eea6121a | 6389 | return (som_is_subspace (sec) && sec->size > 240000); |
252b5132 RH |
6390 | } |
6391 | ||
6392 | #define som_close_and_cleanup som_bfd_free_cached_info | |
6393 | ||
6394 | #define som_read_ar_hdr _bfd_generic_read_ar_hdr | |
6395 | #define som_openr_next_archived_file bfd_generic_openr_next_archived_file | |
6396 | #define som_get_elt_at_index _bfd_generic_get_elt_at_index | |
6397 | #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
6398 | #define som_truncate_arname bfd_bsd_truncate_arname | |
6399 | #define som_slurp_extended_name_table _bfd_slurp_extended_name_table | |
6400 | #define som_construct_extended_name_table \ | |
6401 | _bfd_archive_coff_construct_extended_name_table | |
6402 | #define som_update_armap_timestamp bfd_true | |
6403 | #define som_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data | |
6404 | ||
b34976b6 | 6405 | #define som_get_lineno _bfd_nosymbols_get_lineno |
252b5132 RH |
6406 | #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
6407 | #define som_read_minisymbols _bfd_generic_read_minisymbols | |
6408 | #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
6409 | #define som_get_section_contents_in_window \ | |
6410 | _bfd_generic_get_section_contents_in_window | |
6411 | ||
6412 | #define som_bfd_get_relocated_section_contents \ | |
6413 | bfd_generic_get_relocated_section_contents | |
6414 | #define som_bfd_relax_section bfd_generic_relax_section | |
6415 | #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
e2d34d7d | 6416 | #define som_bfd_link_hash_table_free _bfd_generic_link_hash_table_free |
252b5132 | 6417 | #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols |
2d653fc7 | 6418 | #define som_bfd_link_just_syms _bfd_generic_link_just_syms |
252b5132 RH |
6419 | #define som_bfd_final_link _bfd_generic_final_link |
6420 | ||
6421 | #define som_bfd_gc_sections bfd_generic_gc_sections | |
8550eb6e | 6422 | #define som_bfd_merge_sections bfd_generic_merge_sections |
ad7b9a36 | 6423 | #define som_bfd_is_group_section bfd_generic_is_group_section |
e61463e1 | 6424 | #define som_bfd_discard_group bfd_generic_discard_group |
082b7297 L |
6425 | #define som_section_already_linked \ |
6426 | _bfd_generic_section_already_linked | |
252b5132 | 6427 | |
7eae7d22 | 6428 | const bfd_target som_vec = { |
252b5132 RH |
6429 | "som", /* name */ |
6430 | bfd_target_som_flavour, | |
6431 | BFD_ENDIAN_BIG, /* target byte order */ | |
6432 | BFD_ENDIAN_BIG, /* target headers byte order */ | |
6433 | (HAS_RELOC | EXEC_P | /* object flags */ | |
6434 | HAS_LINENO | HAS_DEBUG | | |
6435 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC), | |
351e2b5a | 6436 | (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | SEC_LINK_ONCE |
252b5132 RH |
6437 | | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
6438 | ||
6439 | /* leading_symbol_char: is the first char of a user symbol | |
34f304a7 | 6440 | predictable, and if so what is it. */ |
252b5132 RH |
6441 | 0, |
6442 | '/', /* ar_pad_char */ | |
6443 | 14, /* ar_max_namelen */ | |
6444 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
6445 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
6446 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
6447 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
6448 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
6449 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
6450 | {_bfd_dummy_target, | |
6451 | som_object_p, /* bfd_check_format */ | |
6452 | bfd_generic_archive_p, | |
6453 | _bfd_dummy_target | |
6454 | }, | |
6455 | { | |
6456 | bfd_false, | |
6457 | som_mkobject, | |
6458 | _bfd_generic_mkarchive, | |
6459 | bfd_false | |
6460 | }, | |
6461 | { | |
6462 | bfd_false, | |
6463 | som_write_object_contents, | |
6464 | _bfd_write_archive_contents, | |
6465 | bfd_false, | |
6466 | }, | |
6467 | #undef som | |
6468 | ||
6469 | BFD_JUMP_TABLE_GENERIC (som), | |
6470 | BFD_JUMP_TABLE_COPY (som), | |
6471 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
6472 | BFD_JUMP_TABLE_ARCHIVE (som), | |
6473 | BFD_JUMP_TABLE_SYMBOLS (som), | |
6474 | BFD_JUMP_TABLE_RELOCS (som), | |
6475 | BFD_JUMP_TABLE_WRITE (som), | |
6476 | BFD_JUMP_TABLE_LINK (som), | |
6477 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
6478 | ||
c3c89269 | 6479 | NULL, |
6fa957a9 | 6480 | |
252b5132 RH |
6481 | (PTR) 0 |
6482 | }; | |
6483 | ||
6484 | #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */ |