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252b5132 | 1 | /* bfd back-end for HP PA-RISC SOM objects. |
8681fbcd | 2 | Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 1998, 2000 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | ||
5 | Contributed by the Center for Software Science at the | |
8681fbcd | 6 | University of Utah. |
252b5132 RH |
7 | |
8 | This file is part of BFD, the Binary File Descriptor library. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
23 | 02111-1307, USA. */ | |
24 | ||
6204760d | 25 | #include "alloca-conf.h" |
252b5132 RH |
26 | #include "bfd.h" |
27 | #include "sysdep.h" | |
28 | ||
29 | #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) || defined(HOST_HPPAMPEIX) | |
30 | ||
31 | #include "libbfd.h" | |
32 | #include "som.h" | |
33 | ||
34 | #include <sys/param.h> | |
35 | #include <signal.h> | |
36 | #include <machine/reg.h> | |
37 | #include <sys/file.h> | |
38 | #include <ctype.h> | |
39 | ||
40 | /* Magic not defined in standard HP-UX header files until 8.0 */ | |
41 | ||
42 | #ifndef CPU_PA_RISC1_0 | |
43 | #define CPU_PA_RISC1_0 0x20B | |
44 | #endif /* CPU_PA_RISC1_0 */ | |
45 | ||
46 | #ifndef CPU_PA_RISC1_1 | |
47 | #define CPU_PA_RISC1_1 0x210 | |
48 | #endif /* CPU_PA_RISC1_1 */ | |
49 | ||
50 | #ifndef CPU_PA_RISC2_0 | |
51 | #define CPU_PA_RISC2_0 0x214 | |
52 | #endif /* CPU_PA_RISC2_0 */ | |
53 | ||
54 | #ifndef _PA_RISC1_0_ID | |
55 | #define _PA_RISC1_0_ID CPU_PA_RISC1_0 | |
56 | #endif /* _PA_RISC1_0_ID */ | |
57 | ||
58 | #ifndef _PA_RISC1_1_ID | |
59 | #define _PA_RISC1_1_ID CPU_PA_RISC1_1 | |
60 | #endif /* _PA_RISC1_1_ID */ | |
61 | ||
62 | #ifndef _PA_RISC2_0_ID | |
63 | #define _PA_RISC2_0_ID CPU_PA_RISC2_0 | |
64 | #endif /* _PA_RISC2_0_ID */ | |
65 | ||
66 | #ifndef _PA_RISC_MAXID | |
67 | #define _PA_RISC_MAXID 0x2FF | |
68 | #endif /* _PA_RISC_MAXID */ | |
69 | ||
70 | #ifndef _PA_RISC_ID | |
71 | #define _PA_RISC_ID(__m_num) \ | |
72 | (((__m_num) == _PA_RISC1_0_ID) || \ | |
73 | ((__m_num) >= _PA_RISC1_1_ID && (__m_num) <= _PA_RISC_MAXID)) | |
74 | #endif /* _PA_RISC_ID */ | |
75 | ||
252b5132 RH |
76 | /* HIUX in it's infinite stupidity changed the names for several "well |
77 | known" constants. Work around such braindamage. Try the HPUX version | |
78 | first, then the HIUX version, and finally provide a default. */ | |
79 | #ifdef HPUX_AUX_ID | |
80 | #define EXEC_AUX_ID HPUX_AUX_ID | |
81 | #endif | |
82 | ||
83 | #if !defined (EXEC_AUX_ID) && defined (HIUX_AUX_ID) | |
84 | #define EXEC_AUX_ID HIUX_AUX_ID | |
85 | #endif | |
86 | ||
87 | #ifndef EXEC_AUX_ID | |
88 | #define EXEC_AUX_ID 0 | |
89 | #endif | |
90 | ||
91 | /* Size (in chars) of the temporary buffers used during fixup and string | |
92 | table writes. */ | |
6fa957a9 | 93 | |
252b5132 RH |
94 | #define SOM_TMP_BUFSIZE 8192 |
95 | ||
96 | /* Size of the hash table in archives. */ | |
97 | #define SOM_LST_HASH_SIZE 31 | |
98 | ||
99 | /* Max number of SOMs to be found in an archive. */ | |
100 | #define SOM_LST_MODULE_LIMIT 1024 | |
101 | ||
102 | /* Generic alignment macro. */ | |
103 | #define SOM_ALIGN(val, alignment) \ | |
104 | (((val) + (alignment) - 1) & ~((alignment) - 1)) | |
105 | ||
106 | /* SOM allows any one of the four previous relocations to be reused | |
107 | with a "R_PREV_FIXUP" relocation entry. Since R_PREV_FIXUP | |
108 | relocations are always a single byte, using a R_PREV_FIXUP instead | |
6fa957a9 | 109 | of some multi-byte relocation makes object files smaller. |
252b5132 RH |
110 | |
111 | Note one side effect of using a R_PREV_FIXUP is the relocation that | |
112 | is being repeated moves to the front of the queue. */ | |
113 | struct reloc_queue | |
114 | { | |
115 | unsigned char *reloc; | |
116 | unsigned int size; | |
117 | } reloc_queue[4]; | |
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). */ | |
122 | typedef enum | |
123 | { | |
124 | SYMBOL_TYPE_UNKNOWN, | |
125 | SYMBOL_TYPE_ABSOLUTE, | |
126 | SYMBOL_TYPE_CODE, | |
127 | SYMBOL_TYPE_DATA, | |
128 | SYMBOL_TYPE_ENTRY, | |
129 | SYMBOL_TYPE_MILLICODE, | |
130 | SYMBOL_TYPE_PLABEL, | |
131 | SYMBOL_TYPE_PRI_PROG, | |
132 | SYMBOL_TYPE_SEC_PROG, | |
133 | } pa_symbol_type; | |
134 | ||
135 | struct section_to_type | |
136 | { | |
137 | char *section; | |
138 | char type; | |
139 | }; | |
140 | ||
141 | /* Assorted symbol information that needs to be derived from the BFD symbol | |
142 | and/or the BFD backend private symbol data. */ | |
143 | struct som_misc_symbol_info | |
144 | { | |
145 | unsigned int symbol_type; | |
146 | unsigned int symbol_scope; | |
147 | unsigned int arg_reloc; | |
148 | unsigned int symbol_info; | |
149 | unsigned int symbol_value; | |
150 | unsigned int priv_level; | |
ba20314e | 151 | unsigned int secondary_def; |
252b5132 RH |
152 | }; |
153 | ||
154 | /* Forward declarations */ | |
155 | ||
156 | static boolean som_mkobject PARAMS ((bfd *)); | |
157 | static const bfd_target * som_object_setup PARAMS ((bfd *, | |
158 | struct header *, | |
159 | struct som_exec_auxhdr *, | |
160 | unsigned long)); | |
161 | static boolean setup_sections PARAMS ((bfd *, struct header *, unsigned long)); | |
162 | static const bfd_target * som_object_p PARAMS ((bfd *)); | |
163 | static boolean som_write_object_contents PARAMS ((bfd *)); | |
164 | static boolean som_slurp_string_table PARAMS ((bfd *)); | |
165 | static unsigned int som_slurp_symbol_table PARAMS ((bfd *)); | |
166 | static long som_get_symtab_upper_bound PARAMS ((bfd *)); | |
167 | static long som_canonicalize_reloc PARAMS ((bfd *, sec_ptr, | |
168 | arelent **, asymbol **)); | |
169 | static long som_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr)); | |
170 | static unsigned int som_set_reloc_info PARAMS ((unsigned char *, unsigned int, | |
171 | arelent *, asection *, | |
172 | asymbol **, boolean)); | |
173 | static boolean som_slurp_reloc_table PARAMS ((bfd *, asection *, | |
174 | asymbol **, boolean)); | |
175 | static long som_get_symtab PARAMS ((bfd *, asymbol **)); | |
176 | static asymbol * som_make_empty_symbol PARAMS ((bfd *)); | |
177 | static void som_print_symbol PARAMS ((bfd *, PTR, | |
178 | asymbol *, bfd_print_symbol_type)); | |
179 | static boolean som_new_section_hook PARAMS ((bfd *, asection *)); | |
180 | static boolean som_bfd_copy_private_symbol_data PARAMS ((bfd *, asymbol *, | |
181 | bfd *, asymbol *)); | |
182 | static boolean som_bfd_copy_private_section_data PARAMS ((bfd *, asection *, | |
183 | bfd *, asection *)); | |
184 | static boolean som_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *)); | |
185 | #define som_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
186 | #define som_bfd_set_private_flags _bfd_generic_bfd_set_private_flags | |
187 | static boolean som_bfd_is_local_label_name PARAMS ((bfd *, const char *)); | |
188 | static boolean som_set_section_contents PARAMS ((bfd *, sec_ptr, PTR, | |
189 | file_ptr, bfd_size_type)); | |
190 | static boolean som_get_section_contents PARAMS ((bfd *, sec_ptr, PTR, | |
191 | file_ptr, bfd_size_type)); | |
192 | static boolean som_set_arch_mach PARAMS ((bfd *, enum bfd_architecture, | |
193 | unsigned long)); | |
194 | static boolean som_find_nearest_line PARAMS ((bfd *, asection *, | |
195 | asymbol **, bfd_vma, | |
196 | CONST char **, | |
197 | CONST char **, | |
198 | unsigned int *)); | |
199 | static void som_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *)); | |
6fa957a9 | 200 | static asection * bfd_section_from_som_symbol PARAMS ((bfd *, |
252b5132 RH |
201 | struct symbol_dictionary_record *)); |
202 | static int log2 PARAMS ((unsigned int)); | |
203 | static bfd_reloc_status_type hppa_som_reloc PARAMS ((bfd *, arelent *, | |
204 | asymbol *, PTR, | |
205 | asection *, bfd *, | |
206 | char **)); | |
207 | static void som_initialize_reloc_queue PARAMS ((struct reloc_queue *)); | |
208 | static void som_reloc_queue_insert PARAMS ((unsigned char *, unsigned int, | |
209 | struct reloc_queue *)); | |
210 | static void som_reloc_queue_fix PARAMS ((struct reloc_queue *, unsigned int)); | |
211 | static int som_reloc_queue_find PARAMS ((unsigned char *, unsigned int, | |
212 | struct reloc_queue *)); | |
213 | static unsigned char * try_prev_fixup PARAMS ((bfd *, int *, unsigned char *, | |
214 | unsigned int, | |
215 | struct reloc_queue *)); | |
216 | ||
217 | static unsigned char * som_reloc_skip PARAMS ((bfd *, unsigned int, | |
218 | unsigned char *, unsigned int *, | |
219 | struct reloc_queue *)); | |
220 | static unsigned char * som_reloc_addend PARAMS ((bfd *, int, unsigned char *, | |
221 | unsigned int *, | |
222 | struct reloc_queue *)); | |
223 | static unsigned char * som_reloc_call PARAMS ((bfd *, unsigned char *, | |
224 | unsigned int *, | |
225 | arelent *, int, | |
226 | struct reloc_queue *)); | |
227 | static unsigned long som_count_spaces PARAMS ((bfd *)); | |
228 | static unsigned long som_count_subspaces PARAMS ((bfd *)); | |
229 | static int compare_syms PARAMS ((const void *, const void *)); | |
230 | static int compare_subspaces PARAMS ((const void *, const void *)); | |
231 | static unsigned long som_compute_checksum PARAMS ((bfd *)); | |
232 | static boolean som_prep_headers PARAMS ((bfd *)); | |
233 | static int som_sizeof_headers PARAMS ((bfd *, boolean)); | |
234 | static boolean som_finish_writing PARAMS ((bfd *)); | |
235 | static boolean som_build_and_write_symbol_table PARAMS ((bfd *)); | |
236 | static void som_prep_for_fixups PARAMS ((bfd *, asymbol **, unsigned long)); | |
237 | static boolean som_write_fixups PARAMS ((bfd *, unsigned long, unsigned int *)); | |
238 | static boolean som_write_space_strings PARAMS ((bfd *, unsigned long, | |
239 | unsigned int *)); | |
240 | static boolean som_write_symbol_strings PARAMS ((bfd *, unsigned long, | |
241 | asymbol **, unsigned int, | |
242 | unsigned *, | |
243 | COMPUNIT *)); | |
244 | static boolean som_begin_writing PARAMS ((bfd *)); | |
245 | static reloc_howto_type * som_bfd_reloc_type_lookup | |
246 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
247 | static char som_section_type PARAMS ((const char *)); | |
248 | static int som_decode_symclass PARAMS ((asymbol *)); | |
249 | static boolean som_bfd_count_ar_symbols PARAMS ((bfd *, struct lst_header *, | |
250 | symindex *)); | |
251 | ||
252 | static boolean som_bfd_fill_in_ar_symbols PARAMS ((bfd *, struct lst_header *, | |
253 | carsym **syms)); | |
254 | static boolean som_slurp_armap PARAMS ((bfd *)); | |
255 | static boolean som_write_armap PARAMS ((bfd *, unsigned int, struct orl *, | |
256 | unsigned int, int)); | |
257 | static void som_bfd_derive_misc_symbol_info PARAMS ((bfd *, asymbol *, | |
258 | struct som_misc_symbol_info *)); | |
259 | static boolean som_bfd_prep_for_ar_write PARAMS ((bfd *, unsigned int *, | |
260 | unsigned int *)); | |
261 | static unsigned int som_bfd_ar_symbol_hash PARAMS ((asymbol *)); | |
262 | static boolean som_bfd_ar_write_symbol_stuff PARAMS ((bfd *, unsigned int, | |
263 | unsigned int, | |
264 | struct lst_header, | |
265 | unsigned int)); | |
266 | static boolean som_is_space PARAMS ((asection *)); | |
267 | static boolean som_is_subspace PARAMS ((asection *)); | |
268 | static boolean som_is_container PARAMS ((asection *, asection *)); | |
269 | static boolean som_bfd_free_cached_info PARAMS ((bfd *)); | |
270 | static boolean som_bfd_link_split_section PARAMS ((bfd *, asection *)); | |
6fa957a9 | 271 | |
252b5132 RH |
272 | /* Map SOM section names to POSIX/BSD single-character symbol types. |
273 | ||
6fa957a9 KH |
274 | This table includes all the standard subspaces as defined in the |
275 | current "PRO ABI for PA-RISC Systems", $UNWIND$ which for | |
252b5132 RH |
276 | some reason was left out, and sections specific to embedded stabs. */ |
277 | ||
278 | static const struct section_to_type stt[] = { | |
279 | {"$TEXT$", 't'}, | |
280 | {"$SHLIB_INFO$", 't'}, | |
281 | {"$MILLICODE$", 't'}, | |
282 | {"$LIT$", 't'}, | |
283 | {"$CODE$", 't'}, | |
284 | {"$UNWIND_START$", 't'}, | |
285 | {"$UNWIND$", 't'}, | |
286 | {"$PRIVATE$", 'd'}, | |
287 | {"$PLT$", 'd'}, | |
288 | {"$SHLIB_DATA$", 'd'}, | |
289 | {"$DATA$", 'd'}, | |
290 | {"$SHORTDATA$", 'g'}, | |
291 | {"$DLT$", 'd'}, | |
292 | {"$GLOBAL$", 'g'}, | |
293 | {"$SHORTBSS$", 's'}, | |
294 | {"$BSS$", 'b'}, | |
295 | {"$GDB_STRINGS$", 'N'}, | |
296 | {"$GDB_SYMBOLS$", 'N'}, | |
297 | {0, 0} | |
298 | }; | |
299 | ||
300 | /* About the relocation formatting table... | |
301 | ||
302 | There are 256 entries in the table, one for each possible | |
303 | relocation opcode available in SOM. We index the table by | |
304 | the relocation opcode. The names and operations are those | |
305 | defined by a.out_800 (4). | |
306 | ||
307 | Right now this table is only used to count and perform minimal | |
308 | processing on relocation streams so that they can be internalized | |
6fa957a9 | 309 | into BFD and symbolically printed by utilities. To make actual use |
252b5132 RH |
310 | of them would be much more difficult, BFD's concept of relocations |
311 | is far too simple to handle SOM relocations. The basic assumption | |
312 | that a relocation can be completely processed independent of other | |
313 | relocations before an object file is written is invalid for SOM. | |
314 | ||
315 | The SOM relocations are meant to be processed as a stream, they | |
316 | specify copying of data from the input section to the output section | |
6fa957a9 | 317 | while possibly modifying the data in some manner. They also can |
252b5132 RH |
318 | specify that a variable number of zeros or uninitialized data be |
319 | inserted on in the output segment at the current offset. Some | |
320 | relocations specify that some previous relocation be re-applied at | |
321 | the current location in the input/output sections. And finally a number | |
322 | of relocations have effects on other sections (R_ENTRY, R_EXIT, | |
323 | R_UNWIND_AUX and a variety of others). There isn't even enough room | |
324 | in the BFD relocation data structure to store enough information to | |
325 | perform all the relocations. | |
326 | ||
6fa957a9 | 327 | Each entry in the table has three fields. |
252b5132 RH |
328 | |
329 | The first entry is an index into this "class" of relocations. This | |
330 | index can then be used as a variable within the relocation itself. | |
331 | ||
332 | The second field is a format string which actually controls processing | |
333 | of the relocation. It uses a simple postfix machine to do calculations | |
334 | based on variables/constants found in the string and the relocation | |
6fa957a9 | 335 | stream. |
252b5132 | 336 | |
6fa957a9 | 337 | The third field specifys whether or not this relocation may use |
252b5132 RH |
338 | a constant (V) from the previous R_DATA_OVERRIDE rather than a constant |
339 | stored in the instruction. | |
340 | ||
6fa957a9 KH |
341 | Variables: |
342 | ||
252b5132 RH |
343 | L = input space byte count |
344 | D = index into class of relocations | |
345 | M = output space byte count | |
346 | N = statement number (unused?) | |
347 | O = stack operation | |
348 | R = parameter relocation bits | |
349 | S = symbol index | |
350 | T = first 32 bits of stack unwind information | |
351 | U = second 32 bits of stack unwind information | |
352 | V = a literal constant (usually used in the next relocation) | |
353 | P = a previous relocation | |
6fa957a9 KH |
354 | |
355 | Lower case letters (starting with 'b') refer to following | |
252b5132 | 356 | bytes in the relocation stream. 'b' is the next 1 byte, |
6fa957a9 | 357 | c is the next 2 bytes, d is the next 3 bytes, etc... |
252b5132 RH |
358 | This is the variable part of the relocation entries that |
359 | makes our life a living hell. | |
360 | ||
361 | numerical constants are also used in the format string. Note | |
6fa957a9 | 362 | the constants are represented in decimal. |
252b5132 RH |
363 | |
364 | '+', "*" and "=" represents the obvious postfix operators. | |
6fa957a9 | 365 | '<' represents a left shift. |
252b5132 RH |
366 | |
367 | Stack Operations: | |
368 | ||
369 | Parameter Relocation Bits: | |
370 | ||
6fa957a9 KH |
371 | Unwind Entries: |
372 | ||
252b5132 RH |
373 | Previous Relocations: The index field represents which in the queue |
374 | of 4 previous fixups should be re-applied. | |
375 | ||
376 | Literal Constants: These are generally used to represent addend | |
377 | parts of relocations when these constants are not stored in the | |
378 | fields of the instructions themselves. For example the instruction | |
379 | addil foo-$global$-0x1234 would use an override for "0x1234" rather | |
380 | than storing it into the addil itself. */ | |
381 | ||
382 | struct fixup_format | |
383 | { | |
384 | int D; | |
7dca057b | 385 | const char *format; |
252b5132 RH |
386 | }; |
387 | ||
388 | static const struct fixup_format som_fixup_formats[256] = | |
389 | { | |
390 | /* R_NO_RELOCATION */ | |
391 | 0, "LD1+4*=", /* 0x00 */ | |
392 | 1, "LD1+4*=", /* 0x01 */ | |
393 | 2, "LD1+4*=", /* 0x02 */ | |
394 | 3, "LD1+4*=", /* 0x03 */ | |
395 | 4, "LD1+4*=", /* 0x04 */ | |
396 | 5, "LD1+4*=", /* 0x05 */ | |
397 | 6, "LD1+4*=", /* 0x06 */ | |
398 | 7, "LD1+4*=", /* 0x07 */ | |
399 | 8, "LD1+4*=", /* 0x08 */ | |
400 | 9, "LD1+4*=", /* 0x09 */ | |
401 | 10, "LD1+4*=", /* 0x0a */ | |
402 | 11, "LD1+4*=", /* 0x0b */ | |
403 | 12, "LD1+4*=", /* 0x0c */ | |
404 | 13, "LD1+4*=", /* 0x0d */ | |
405 | 14, "LD1+4*=", /* 0x0e */ | |
406 | 15, "LD1+4*=", /* 0x0f */ | |
407 | 16, "LD1+4*=", /* 0x10 */ | |
408 | 17, "LD1+4*=", /* 0x11 */ | |
409 | 18, "LD1+4*=", /* 0x12 */ | |
410 | 19, "LD1+4*=", /* 0x13 */ | |
411 | 20, "LD1+4*=", /* 0x14 */ | |
412 | 21, "LD1+4*=", /* 0x15 */ | |
413 | 22, "LD1+4*=", /* 0x16 */ | |
414 | 23, "LD1+4*=", /* 0x17 */ | |
415 | 0, "LD8<b+1+4*=", /* 0x18 */ | |
416 | 1, "LD8<b+1+4*=", /* 0x19 */ | |
417 | 2, "LD8<b+1+4*=", /* 0x1a */ | |
418 | 3, "LD8<b+1+4*=", /* 0x1b */ | |
419 | 0, "LD16<c+1+4*=", /* 0x1c */ | |
420 | 1, "LD16<c+1+4*=", /* 0x1d */ | |
421 | 2, "LD16<c+1+4*=", /* 0x1e */ | |
422 | 0, "Ld1+=", /* 0x1f */ | |
423 | /* R_ZEROES */ | |
424 | 0, "Lb1+4*=", /* 0x20 */ | |
425 | 1, "Ld1+=", /* 0x21 */ | |
426 | /* R_UNINIT */ | |
427 | 0, "Lb1+4*=", /* 0x22 */ | |
428 | 1, "Ld1+=", /* 0x23 */ | |
429 | /* R_RELOCATION */ | |
430 | 0, "L4=", /* 0x24 */ | |
431 | /* R_DATA_ONE_SYMBOL */ | |
432 | 0, "L4=Sb=", /* 0x25 */ | |
433 | 1, "L4=Sd=", /* 0x26 */ | |
434 | /* R_DATA_PLEBEL */ | |
435 | 0, "L4=Sb=", /* 0x27 */ | |
436 | 1, "L4=Sd=", /* 0x28 */ | |
437 | /* R_SPACE_REF */ | |
438 | 0, "L4=", /* 0x29 */ | |
439 | /* R_REPEATED_INIT */ | |
440 | 0, "L4=Mb1+4*=", /* 0x2a */ | |
441 | 1, "Lb4*=Mb1+L*=", /* 0x2b */ | |
442 | 2, "Lb4*=Md1+4*=", /* 0x2c */ | |
443 | 3, "Ld1+=Me1+=", /* 0x2d */ | |
252b5132 | 444 | 0, "", /* 0x2e */ |
252b5132 RH |
445 | 0, "", /* 0x2f */ |
446 | /* R_PCREL_CALL */ | |
447 | 0, "L4=RD=Sb=", /* 0x30 */ | |
448 | 1, "L4=RD=Sb=", /* 0x31 */ | |
449 | 2, "L4=RD=Sb=", /* 0x32 */ | |
450 | 3, "L4=RD=Sb=", /* 0x33 */ | |
451 | 4, "L4=RD=Sb=", /* 0x34 */ | |
452 | 5, "L4=RD=Sb=", /* 0x35 */ | |
453 | 6, "L4=RD=Sb=", /* 0x36 */ | |
454 | 7, "L4=RD=Sb=", /* 0x37 */ | |
455 | 8, "L4=RD=Sb=", /* 0x38 */ | |
456 | 9, "L4=RD=Sb=", /* 0x39 */ | |
457 | 0, "L4=RD8<b+=Sb=",/* 0x3a */ | |
458 | 1, "L4=RD8<b+=Sb=",/* 0x3b */ | |
459 | 0, "L4=RD8<b+=Sd=",/* 0x3c */ | |
460 | 1, "L4=RD8<b+=Sd=",/* 0x3d */ | |
c1006781 | 461 | /* R_SHORT_PCREL_MODE */ |
252b5132 | 462 | 0, "", /* 0x3e */ |
c1006781 | 463 | /* R_LONG_PCREL_MODE */ |
252b5132 RH |
464 | 0, "", /* 0x3f */ |
465 | /* R_ABS_CALL */ | |
466 | 0, "L4=RD=Sb=", /* 0x40 */ | |
467 | 1, "L4=RD=Sb=", /* 0x41 */ | |
468 | 2, "L4=RD=Sb=", /* 0x42 */ | |
469 | 3, "L4=RD=Sb=", /* 0x43 */ | |
470 | 4, "L4=RD=Sb=", /* 0x44 */ | |
471 | 5, "L4=RD=Sb=", /* 0x45 */ | |
472 | 6, "L4=RD=Sb=", /* 0x46 */ | |
473 | 7, "L4=RD=Sb=", /* 0x47 */ | |
474 | 8, "L4=RD=Sb=", /* 0x48 */ | |
475 | 9, "L4=RD=Sb=", /* 0x49 */ | |
476 | 0, "L4=RD8<b+=Sb=",/* 0x4a */ | |
477 | 1, "L4=RD8<b+=Sb=",/* 0x4b */ | |
478 | 0, "L4=RD8<b+=Sd=",/* 0x4c */ | |
479 | 1, "L4=RD8<b+=Sd=",/* 0x4d */ | |
480 | /* R_RESERVED */ | |
481 | 0, "", /* 0x4e */ | |
482 | 0, "", /* 0x4f */ | |
483 | /* R_DP_RELATIVE */ | |
484 | 0, "L4=SD=", /* 0x50 */ | |
485 | 1, "L4=SD=", /* 0x51 */ | |
486 | 2, "L4=SD=", /* 0x52 */ | |
487 | 3, "L4=SD=", /* 0x53 */ | |
488 | 4, "L4=SD=", /* 0x54 */ | |
489 | 5, "L4=SD=", /* 0x55 */ | |
490 | 6, "L4=SD=", /* 0x56 */ | |
491 | 7, "L4=SD=", /* 0x57 */ | |
492 | 8, "L4=SD=", /* 0x58 */ | |
493 | 9, "L4=SD=", /* 0x59 */ | |
494 | 10, "L4=SD=", /* 0x5a */ | |
495 | 11, "L4=SD=", /* 0x5b */ | |
496 | 12, "L4=SD=", /* 0x5c */ | |
497 | 13, "L4=SD=", /* 0x5d */ | |
498 | 14, "L4=SD=", /* 0x5e */ | |
499 | 15, "L4=SD=", /* 0x5f */ | |
500 | 16, "L4=SD=", /* 0x60 */ | |
501 | 17, "L4=SD=", /* 0x61 */ | |
502 | 18, "L4=SD=", /* 0x62 */ | |
503 | 19, "L4=SD=", /* 0x63 */ | |
504 | 20, "L4=SD=", /* 0x64 */ | |
505 | 21, "L4=SD=", /* 0x65 */ | |
506 | 22, "L4=SD=", /* 0x66 */ | |
507 | 23, "L4=SD=", /* 0x67 */ | |
508 | 24, "L4=SD=", /* 0x68 */ | |
509 | 25, "L4=SD=", /* 0x69 */ | |
510 | 26, "L4=SD=", /* 0x6a */ | |
511 | 27, "L4=SD=", /* 0x6b */ | |
512 | 28, "L4=SD=", /* 0x6c */ | |
513 | 29, "L4=SD=", /* 0x6d */ | |
514 | 30, "L4=SD=", /* 0x6e */ | |
515 | 31, "L4=SD=", /* 0x6f */ | |
516 | 32, "L4=Sb=", /* 0x70 */ | |
517 | 33, "L4=Sd=", /* 0x71 */ | |
518 | /* R_RESERVED */ | |
519 | 0, "", /* 0x72 */ | |
520 | 0, "", /* 0x73 */ | |
521 | 0, "", /* 0x74 */ | |
522 | 0, "", /* 0x75 */ | |
523 | 0, "", /* 0x76 */ | |
524 | 0, "", /* 0x77 */ | |
525 | /* R_DLT_REL */ | |
526 | 0, "L4=Sb=", /* 0x78 */ | |
527 | 1, "L4=Sd=", /* 0x79 */ | |
528 | /* R_RESERVED */ | |
529 | 0, "", /* 0x7a */ | |
530 | 0, "", /* 0x7b */ | |
531 | 0, "", /* 0x7c */ | |
532 | 0, "", /* 0x7d */ | |
533 | 0, "", /* 0x7e */ | |
534 | 0, "", /* 0x7f */ | |
535 | /* R_CODE_ONE_SYMBOL */ | |
536 | 0, "L4=SD=", /* 0x80 */ | |
537 | 1, "L4=SD=", /* 0x81 */ | |
538 | 2, "L4=SD=", /* 0x82 */ | |
539 | 3, "L4=SD=", /* 0x83 */ | |
540 | 4, "L4=SD=", /* 0x84 */ | |
541 | 5, "L4=SD=", /* 0x85 */ | |
542 | 6, "L4=SD=", /* 0x86 */ | |
543 | 7, "L4=SD=", /* 0x87 */ | |
544 | 8, "L4=SD=", /* 0x88 */ | |
545 | 9, "L4=SD=", /* 0x89 */ | |
546 | 10, "L4=SD=", /* 0x8q */ | |
547 | 11, "L4=SD=", /* 0x8b */ | |
548 | 12, "L4=SD=", /* 0x8c */ | |
549 | 13, "L4=SD=", /* 0x8d */ | |
550 | 14, "L4=SD=", /* 0x8e */ | |
551 | 15, "L4=SD=", /* 0x8f */ | |
552 | 16, "L4=SD=", /* 0x90 */ | |
553 | 17, "L4=SD=", /* 0x91 */ | |
554 | 18, "L4=SD=", /* 0x92 */ | |
555 | 19, "L4=SD=", /* 0x93 */ | |
556 | 20, "L4=SD=", /* 0x94 */ | |
557 | 21, "L4=SD=", /* 0x95 */ | |
558 | 22, "L4=SD=", /* 0x96 */ | |
559 | 23, "L4=SD=", /* 0x97 */ | |
560 | 24, "L4=SD=", /* 0x98 */ | |
561 | 25, "L4=SD=", /* 0x99 */ | |
562 | 26, "L4=SD=", /* 0x9a */ | |
563 | 27, "L4=SD=", /* 0x9b */ | |
564 | 28, "L4=SD=", /* 0x9c */ | |
565 | 29, "L4=SD=", /* 0x9d */ | |
566 | 30, "L4=SD=", /* 0x9e */ | |
567 | 31, "L4=SD=", /* 0x9f */ | |
568 | 32, "L4=Sb=", /* 0xa0 */ | |
569 | 33, "L4=Sd=", /* 0xa1 */ | |
570 | /* R_RESERVED */ | |
571 | 0, "", /* 0xa2 */ | |
572 | 0, "", /* 0xa3 */ | |
573 | 0, "", /* 0xa4 */ | |
574 | 0, "", /* 0xa5 */ | |
575 | 0, "", /* 0xa6 */ | |
576 | 0, "", /* 0xa7 */ | |
577 | 0, "", /* 0xa8 */ | |
578 | 0, "", /* 0xa9 */ | |
579 | 0, "", /* 0xaa */ | |
580 | 0, "", /* 0xab */ | |
581 | 0, "", /* 0xac */ | |
582 | 0, "", /* 0xad */ | |
583 | /* R_MILLI_REL */ | |
584 | 0, "L4=Sb=", /* 0xae */ | |
585 | 1, "L4=Sd=", /* 0xaf */ | |
586 | /* R_CODE_PLABEL */ | |
587 | 0, "L4=Sb=", /* 0xb0 */ | |
588 | 1, "L4=Sd=", /* 0xb1 */ | |
589 | /* R_BREAKPOINT */ | |
590 | 0, "L4=", /* 0xb2 */ | |
591 | /* R_ENTRY */ | |
592 | 0, "Te=Ue=", /* 0xb3 */ | |
593 | 1, "Uf=", /* 0xb4 */ | |
594 | /* R_ALT_ENTRY */ | |
595 | 0, "", /* 0xb5 */ | |
596 | /* R_EXIT */ | |
597 | 0, "", /* 0xb6 */ | |
598 | /* R_BEGIN_TRY */ | |
599 | 0, "", /* 0xb7 */ | |
600 | /* R_END_TRY */ | |
601 | 0, "R0=", /* 0xb8 */ | |
602 | 1, "Rb4*=", /* 0xb9 */ | |
603 | 2, "Rd4*=", /* 0xba */ | |
604 | /* R_BEGIN_BRTAB */ | |
605 | 0, "", /* 0xbb */ | |
606 | /* R_END_BRTAB */ | |
607 | 0, "", /* 0xbc */ | |
608 | /* R_STATEMENT */ | |
609 | 0, "Nb=", /* 0xbd */ | |
610 | 1, "Nc=", /* 0xbe */ | |
611 | 2, "Nd=", /* 0xbf */ | |
612 | /* R_DATA_EXPR */ | |
613 | 0, "L4=", /* 0xc0 */ | |
614 | /* R_CODE_EXPR */ | |
615 | 0, "L4=", /* 0xc1 */ | |
616 | /* R_FSEL */ | |
617 | 0, "", /* 0xc2 */ | |
618 | /* R_LSEL */ | |
619 | 0, "", /* 0xc3 */ | |
620 | /* R_RSEL */ | |
621 | 0, "", /* 0xc4 */ | |
622 | /* R_N_MODE */ | |
623 | 0, "", /* 0xc5 */ | |
624 | /* R_S_MODE */ | |
625 | 0, "", /* 0xc6 */ | |
626 | /* R_D_MODE */ | |
627 | 0, "", /* 0xc7 */ | |
628 | /* R_R_MODE */ | |
629 | 0, "", /* 0xc8 */ | |
630 | /* R_DATA_OVERRIDE */ | |
631 | 0, "V0=", /* 0xc9 */ | |
632 | 1, "Vb=", /* 0xca */ | |
633 | 2, "Vc=", /* 0xcb */ | |
634 | 3, "Vd=", /* 0xcc */ | |
635 | 4, "Ve=", /* 0xcd */ | |
636 | /* R_TRANSLATED */ | |
637 | 0, "", /* 0xce */ | |
832fc202 JL |
638 | /* R_AUX_UNWIND */ |
639 | 0, "Sd=Vf=Ef=", /* 0xcf */ | |
252b5132 RH |
640 | /* R_COMP1 */ |
641 | 0, "Ob=", /* 0xd0 */ | |
642 | /* R_COMP2 */ | |
643 | 0, "Ob=Sd=", /* 0xd1 */ | |
644 | /* R_COMP3 */ | |
645 | 0, "Ob=Ve=", /* 0xd2 */ | |
646 | /* R_PREV_FIXUP */ | |
647 | 0, "P", /* 0xd3 */ | |
648 | 1, "P", /* 0xd4 */ | |
649 | 2, "P", /* 0xd5 */ | |
650 | 3, "P", /* 0xd6 */ | |
651 | /* R_SEC_STMT */ | |
652 | 0, "", /* 0xd7 */ | |
653 | /* R_N0SEL */ | |
654 | 0, "", /* 0xd8 */ | |
655 | /* R_N1SEL */ | |
656 | 0, "", /* 0xd9 */ | |
657 | /* R_LINETAB */ | |
832fc202 | 658 | 0, "Eb=Sd=Ve=", /* 0xda */ |
252b5132 | 659 | /* R_LINETAB_ESC */ |
832fc202 | 660 | 0, "Eb=Mb=", /* 0xdb */ |
252b5132 RH |
661 | /* R_LTP_OVERRIDE */ |
662 | 0, "", /* 0xdc */ | |
663 | /* R_COMMENT */ | |
832fc202 | 664 | 0, "Ob=Ve=", /* 0xdd */ |
252b5132 RH |
665 | /* R_RESERVED */ |
666 | 0, "", /* 0xde */ | |
667 | 0, "", /* 0xdf */ | |
668 | 0, "", /* 0xe0 */ | |
669 | 0, "", /* 0xe1 */ | |
670 | 0, "", /* 0xe2 */ | |
671 | 0, "", /* 0xe3 */ | |
672 | 0, "", /* 0xe4 */ | |
673 | 0, "", /* 0xe5 */ | |
674 | 0, "", /* 0xe6 */ | |
675 | 0, "", /* 0xe7 */ | |
676 | 0, "", /* 0xe8 */ | |
677 | 0, "", /* 0xe9 */ | |
678 | 0, "", /* 0xea */ | |
679 | 0, "", /* 0xeb */ | |
680 | 0, "", /* 0xec */ | |
681 | 0, "", /* 0xed */ | |
682 | 0, "", /* 0xee */ | |
683 | 0, "", /* 0xef */ | |
684 | 0, "", /* 0xf0 */ | |
685 | 0, "", /* 0xf1 */ | |
686 | 0, "", /* 0xf2 */ | |
687 | 0, "", /* 0xf3 */ | |
688 | 0, "", /* 0xf4 */ | |
689 | 0, "", /* 0xf5 */ | |
690 | 0, "", /* 0xf6 */ | |
691 | 0, "", /* 0xf7 */ | |
692 | 0, "", /* 0xf8 */ | |
693 | 0, "", /* 0xf9 */ | |
694 | 0, "", /* 0xfa */ | |
695 | 0, "", /* 0xfb */ | |
696 | 0, "", /* 0xfc */ | |
697 | 0, "", /* 0xfd */ | |
698 | 0, "", /* 0xfe */ | |
699 | 0, "", /* 0xff */ | |
700 | }; | |
701 | ||
702 | static const int comp1_opcodes[] = | |
703 | { | |
704 | 0x00, | |
705 | 0x40, | |
706 | 0x41, | |
707 | 0x42, | |
708 | 0x43, | |
709 | 0x44, | |
710 | 0x45, | |
711 | 0x46, | |
712 | 0x47, | |
713 | 0x48, | |
714 | 0x49, | |
715 | 0x4a, | |
716 | 0x4b, | |
717 | 0x60, | |
718 | 0x80, | |
719 | 0xa0, | |
720 | 0xc0, | |
721 | -1 | |
722 | }; | |
723 | ||
724 | static const int comp2_opcodes[] = | |
725 | { | |
726 | 0x00, | |
727 | 0x80, | |
728 | 0x82, | |
729 | 0xc0, | |
730 | -1 | |
731 | }; | |
732 | ||
733 | static const int comp3_opcodes[] = | |
734 | { | |
735 | 0x00, | |
736 | 0x02, | |
737 | -1 | |
738 | }; | |
739 | ||
740 | /* These apparently are not in older versions of hpux reloc.h (hpux7). */ | |
741 | #ifndef R_DLT_REL | |
742 | #define R_DLT_REL 0x78 | |
743 | #endif | |
744 | ||
745 | #ifndef R_AUX_UNWIND | |
746 | #define R_AUX_UNWIND 0xcf | |
747 | #endif | |
748 | ||
749 | #ifndef R_SEC_STMT | |
750 | #define R_SEC_STMT 0xd7 | |
751 | #endif | |
752 | ||
753 | /* And these first appeared in hpux10. */ | |
754 | #ifndef R_SHORT_PCREL_MODE | |
2667095f | 755 | #define NO_PCREL_MODES |
252b5132 RH |
756 | #define R_SHORT_PCREL_MODE 0x3e |
757 | #endif | |
758 | ||
759 | #ifndef R_LONG_PCREL_MODE | |
760 | #define R_LONG_PCREL_MODE 0x3f | |
761 | #endif | |
762 | ||
763 | #ifndef R_N0SEL | |
764 | #define R_N0SEL 0xd8 | |
765 | #endif | |
766 | ||
767 | #ifndef R_N1SEL | |
768 | #define R_N1SEL 0xd9 | |
769 | #endif | |
770 | ||
771 | #ifndef R_LINETAB | |
772 | #define R_LINETAB 0xda | |
773 | #endif | |
774 | ||
775 | #ifndef R_LINETAB_ESC | |
776 | #define R_LINETAB_ESC 0xdb | |
777 | #endif | |
778 | ||
779 | #ifndef R_LTP_OVERRIDE | |
780 | #define R_LTP_OVERRIDE 0xdc | |
781 | #endif | |
782 | ||
783 | #ifndef R_COMMENT | |
784 | #define R_COMMENT 0xdd | |
785 | #endif | |
786 | ||
36e89602 JL |
787 | #define SOM_HOWTO(TYPE, NAME) \ |
788 | HOWTO(TYPE, 0, 0, 32, false, 0, 0, hppa_som_reloc, NAME, false, 0, 0, false) | |
789 | ||
252b5132 RH |
790 | static reloc_howto_type som_hppa_howto_table[] = |
791 | { | |
7dca057b JL |
792 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), |
793 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
794 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
795 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
796 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
797 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
798 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
799 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
800 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
801 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
802 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
803 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
804 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
805 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
806 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
807 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
808 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
809 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
810 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
811 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
812 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
813 | SOM_HOWTO (R_NO_RELOCATION, "R_NO_RELOCATION"), | |
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_ZEROES, "R_ZEROES"), | |
825 | SOM_HOWTO (R_ZEROES, "R_ZEROES"), | |
826 | SOM_HOWTO (R_UNINIT, "R_UNINIT"), | |
827 | SOM_HOWTO (R_UNINIT, "R_UNINIT"), | |
828 | SOM_HOWTO (R_RELOCATION, "R_RELOCATION"), | |
829 | SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"), | |
830 | SOM_HOWTO (R_DATA_ONE_SYMBOL, "R_DATA_ONE_SYMBOL"), | |
831 | SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"), | |
832 | SOM_HOWTO (R_DATA_PLABEL, "R_DATA_PLABEL"), | |
833 | SOM_HOWTO (R_SPACE_REF, "R_SPACE_REF"), | |
834 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
835 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
836 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
837 | SOM_HOWTO (R_REPEATED_INIT, "REPEATED_INIT"), | |
838 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
839 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
840 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
841 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
842 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
843 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
844 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
845 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
846 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
847 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
848 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
849 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
850 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
851 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
852 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
853 | SOM_HOWTO (R_PCREL_CALL, "R_PCREL_CALL"), | |
854 | SOM_HOWTO (R_SHORT_PCREL_MODE, "R_SHORT_PCREL_MODE"), | |
855 | SOM_HOWTO (R_LONG_PCREL_MODE, "R_LONG_PCREL_MODE"), | |
856 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
857 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
858 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
859 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
860 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
861 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
862 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
863 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
864 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
865 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
866 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
867 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
868 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
869 | SOM_HOWTO (R_ABS_CALL, "R_ABS_CALL"), | |
870 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
871 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
872 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
873 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
874 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
875 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
876 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
877 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
878 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
879 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
880 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
881 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
882 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
883 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
884 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
885 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
886 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
887 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
888 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
889 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
890 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
891 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
892 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
893 | SOM_HOWTO (R_DP_RELATIVE, "R_DP_RELATIVE"), | |
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_RESERVED, "R_RESERVED"), | |
908 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
909 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
910 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
911 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
912 | SOM_HOWTO (R_DLT_REL, "R_DLT_REL"), | |
913 | SOM_HOWTO (R_DLT_REL, "R_DLT_REL"), | |
914 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
915 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
916 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
917 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
918 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
919 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
920 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
921 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
922 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
923 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
924 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
925 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
926 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
927 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
928 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
929 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
930 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
931 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
932 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
933 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
934 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
935 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
936 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
937 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
938 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
939 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
940 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
941 | SOM_HOWTO (R_CODE_ONE_SYMBOL, "R_CODE_ONE_SYMBOL"), | |
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_RESERVED, "R_RESERVED"), | |
956 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
957 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
958 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
959 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
960 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
961 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
962 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
963 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
964 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
965 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
966 | SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"), | |
967 | SOM_HOWTO (R_MILLI_REL, "R_MILLI_REL"), | |
968 | SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"), | |
969 | SOM_HOWTO (R_CODE_PLABEL, "R_CODE_PLABEL"), | |
970 | SOM_HOWTO (R_BREAKPOINT, "R_BREAKPOINT"), | |
971 | SOM_HOWTO (R_ENTRY, "R_ENTRY"), | |
972 | SOM_HOWTO (R_ENTRY, "R_ENTRY"), | |
973 | SOM_HOWTO (R_ALT_ENTRY, "R_ALT_ENTRY"), | |
974 | SOM_HOWTO (R_EXIT, "R_EXIT"), | |
975 | SOM_HOWTO (R_BEGIN_TRY, "R_BEGIN_TRY"), | |
976 | SOM_HOWTO (R_END_TRY, "R_END_TRY"), | |
977 | SOM_HOWTO (R_END_TRY, "R_END_TRY"), | |
978 | SOM_HOWTO (R_END_TRY, "R_END_TRY"), | |
979 | SOM_HOWTO (R_BEGIN_BRTAB, "R_BEGIN_BRTAB"), | |
980 | SOM_HOWTO (R_END_BRTAB, "R_END_BRTAB"), | |
981 | SOM_HOWTO (R_STATEMENT, "R_STATEMENT"), | |
982 | SOM_HOWTO (R_STATEMENT, "R_STATEMENT"), | |
983 | SOM_HOWTO (R_STATEMENT, "R_STATEMENT"), | |
984 | SOM_HOWTO (R_DATA_EXPR, "R_DATA_EXPR"), | |
985 | SOM_HOWTO (R_CODE_EXPR, "R_CODE_EXPR"), | |
986 | SOM_HOWTO (R_FSEL, "R_FSEL"), | |
987 | SOM_HOWTO (R_LSEL, "R_LSEL"), | |
988 | SOM_HOWTO (R_RSEL, "R_RSEL"), | |
989 | SOM_HOWTO (R_N_MODE, "R_N_MODE"), | |
990 | SOM_HOWTO (R_S_MODE, "R_S_MODE"), | |
991 | SOM_HOWTO (R_D_MODE, "R_D_MODE"), | |
992 | SOM_HOWTO (R_R_MODE, "R_R_MODE"), | |
993 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
994 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
995 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
996 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
997 | SOM_HOWTO (R_DATA_OVERRIDE, "R_DATA_OVERRIDE"), | |
998 | SOM_HOWTO (R_TRANSLATED, "R_TRANSLATED"), | |
999 | SOM_HOWTO (R_AUX_UNWIND, "R_AUX_UNWIND"), | |
1000 | SOM_HOWTO (R_COMP1, "R_COMP1"), | |
1001 | SOM_HOWTO (R_COMP2, "R_COMP2"), | |
1002 | SOM_HOWTO (R_COMP3, "R_COMP3"), | |
1003 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1004 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1005 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1006 | SOM_HOWTO (R_PREV_FIXUP, "R_PREV_FIXUP"), | |
1007 | SOM_HOWTO (R_SEC_STMT, "R_SEC_STMT"), | |
1008 | SOM_HOWTO (R_N0SEL, "R_N0SEL"), | |
1009 | SOM_HOWTO (R_N1SEL, "R_N1SEL"), | |
1010 | SOM_HOWTO (R_LINETAB, "R_LINETAB"), | |
1011 | SOM_HOWTO (R_LINETAB_ESC, "R_LINETAB_ESC"), | |
1012 | SOM_HOWTO (R_LTP_OVERRIDE, "R_LTP_OVERRIDE"), | |
1013 | SOM_HOWTO (R_COMMENT, "R_COMMENT"), | |
1014 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1015 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1016 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1017 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1018 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1019 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1020 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1021 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1022 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1023 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1024 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1025 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1026 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1027 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1028 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1029 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1030 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1031 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1032 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1033 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1034 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
1035 | SOM_HOWTO (R_RESERVED, "R_RESERVED"), | |
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")}; | |
6fa957a9 | 1048 | |
252b5132 RH |
1049 | /* Initialize the SOM relocation queue. By definition the queue holds |
1050 | the last four multibyte fixups. */ | |
6fa957a9 | 1051 | |
252b5132 RH |
1052 | static void |
1053 | som_initialize_reloc_queue (queue) | |
1054 | struct reloc_queue *queue; | |
1055 | { | |
1056 | queue[0].reloc = NULL; | |
1057 | queue[0].size = 0; | |
1058 | queue[1].reloc = NULL; | |
1059 | queue[1].size = 0; | |
1060 | queue[2].reloc = NULL; | |
1061 | queue[2].size = 0; | |
1062 | queue[3].reloc = NULL; | |
1063 | queue[3].size = 0; | |
1064 | } | |
1065 | ||
1066 | /* Insert a new relocation into the relocation queue. */ | |
1067 | ||
1068 | static void | |
1069 | som_reloc_queue_insert (p, size, queue) | |
1070 | unsigned char *p; | |
1071 | unsigned int size; | |
1072 | struct reloc_queue *queue; | |
1073 | { | |
1074 | queue[3].reloc = queue[2].reloc; | |
1075 | queue[3].size = queue[2].size; | |
1076 | queue[2].reloc = queue[1].reloc; | |
1077 | queue[2].size = queue[1].size; | |
1078 | queue[1].reloc = queue[0].reloc; | |
1079 | queue[1].size = queue[0].size; | |
1080 | queue[0].reloc = p; | |
1081 | queue[0].size = size; | |
1082 | } | |
1083 | ||
1084 | /* When an entry in the relocation queue is reused, the entry moves | |
1085 | to the front of the queue. */ | |
1086 | ||
1087 | static void | |
1088 | som_reloc_queue_fix (queue, index) | |
1089 | struct reloc_queue *queue; | |
1090 | unsigned int index; | |
1091 | { | |
1092 | if (index == 0) | |
1093 | return; | |
1094 | ||
1095 | if (index == 1) | |
1096 | { | |
1097 | unsigned char *tmp1 = queue[0].reloc; | |
1098 | unsigned int tmp2 = queue[0].size; | |
1099 | queue[0].reloc = queue[1].reloc; | |
1100 | queue[0].size = queue[1].size; | |
1101 | queue[1].reloc = tmp1; | |
1102 | queue[1].size = tmp2; | |
1103 | return; | |
1104 | } | |
1105 | ||
1106 | if (index == 2) | |
1107 | { | |
1108 | unsigned char *tmp1 = queue[0].reloc; | |
1109 | unsigned int tmp2 = queue[0].size; | |
1110 | queue[0].reloc = queue[2].reloc; | |
1111 | queue[0].size = queue[2].size; | |
1112 | queue[2].reloc = queue[1].reloc; | |
1113 | queue[2].size = queue[1].size; | |
1114 | queue[1].reloc = tmp1; | |
1115 | queue[1].size = tmp2; | |
1116 | return; | |
1117 | } | |
1118 | ||
1119 | if (index == 3) | |
1120 | { | |
1121 | unsigned char *tmp1 = queue[0].reloc; | |
1122 | unsigned int tmp2 = queue[0].size; | |
1123 | queue[0].reloc = queue[3].reloc; | |
1124 | queue[0].size = queue[3].size; | |
1125 | queue[3].reloc = queue[2].reloc; | |
1126 | queue[3].size = queue[2].size; | |
1127 | queue[2].reloc = queue[1].reloc; | |
1128 | queue[2].size = queue[1].size; | |
1129 | queue[1].reloc = tmp1; | |
1130 | queue[1].size = tmp2; | |
1131 | return; | |
1132 | } | |
6fa957a9 | 1133 | abort (); |
252b5132 RH |
1134 | } |
1135 | ||
1136 | /* Search for a particular relocation in the relocation queue. */ | |
1137 | ||
1138 | static int | |
1139 | som_reloc_queue_find (p, size, queue) | |
1140 | unsigned char *p; | |
1141 | unsigned int size; | |
1142 | struct reloc_queue *queue; | |
1143 | { | |
1144 | if (queue[0].reloc && !memcmp (p, queue[0].reloc, size) | |
1145 | && size == queue[0].size) | |
1146 | return 0; | |
1147 | if (queue[1].reloc && !memcmp (p, queue[1].reloc, size) | |
1148 | && size == queue[1].size) | |
1149 | return 1; | |
1150 | if (queue[2].reloc && !memcmp (p, queue[2].reloc, size) | |
1151 | && size == queue[2].size) | |
1152 | return 2; | |
1153 | if (queue[3].reloc && !memcmp (p, queue[3].reloc, size) | |
1154 | && size == queue[3].size) | |
1155 | return 3; | |
1156 | return -1; | |
1157 | } | |
1158 | ||
1159 | static unsigned char * | |
1160 | try_prev_fixup (abfd, subspace_reloc_sizep, p, size, queue) | |
7dca057b | 1161 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1162 | int *subspace_reloc_sizep; |
1163 | unsigned char *p; | |
1164 | unsigned int size; | |
1165 | struct reloc_queue *queue; | |
1166 | { | |
1167 | int queue_index = som_reloc_queue_find (p, size, queue); | |
1168 | ||
1169 | if (queue_index != -1) | |
1170 | { | |
1171 | /* Found this in a previous fixup. Undo the fixup we | |
6fa957a9 | 1172 | just built and use R_PREV_FIXUP instead. We saved |
252b5132 RH |
1173 | a total of size - 1 bytes in the fixup stream. */ |
1174 | bfd_put_8 (abfd, R_PREV_FIXUP + queue_index, p); | |
1175 | p += 1; | |
1176 | *subspace_reloc_sizep += 1; | |
1177 | som_reloc_queue_fix (queue, queue_index); | |
1178 | } | |
1179 | else | |
1180 | { | |
1181 | som_reloc_queue_insert (p, size, queue); | |
1182 | *subspace_reloc_sizep += size; | |
1183 | p += size; | |
1184 | } | |
1185 | return p; | |
1186 | } | |
1187 | ||
1188 | /* Emit the proper R_NO_RELOCATION fixups to map the next SKIP | |
1189 | bytes without any relocation. Update the size of the subspace | |
6fa957a9 | 1190 | relocation stream via SUBSPACE_RELOC_SIZE_P; also return the |
252b5132 RH |
1191 | current pointer into the relocation stream. */ |
1192 | ||
1193 | static unsigned char * | |
1194 | som_reloc_skip (abfd, skip, p, subspace_reloc_sizep, queue) | |
1195 | bfd *abfd; | |
1196 | unsigned int skip; | |
1197 | unsigned char *p; | |
1198 | unsigned int *subspace_reloc_sizep; | |
1199 | struct reloc_queue *queue; | |
1200 | { | |
1201 | /* Use a 4 byte R_NO_RELOCATION entry with a maximal value | |
1202 | then R_PREV_FIXUPs to get the difference down to a | |
1203 | reasonable size. */ | |
1204 | if (skip >= 0x1000000) | |
1205 | { | |
1206 | skip -= 0x1000000; | |
1207 | bfd_put_8 (abfd, R_NO_RELOCATION + 31, p); | |
1208 | bfd_put_8 (abfd, 0xff, p + 1); | |
1209 | bfd_put_16 (abfd, 0xffff, p + 2); | |
1210 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue); | |
1211 | while (skip >= 0x1000000) | |
1212 | { | |
1213 | skip -= 0x1000000; | |
1214 | bfd_put_8 (abfd, R_PREV_FIXUP, p); | |
1215 | p++; | |
1216 | *subspace_reloc_sizep += 1; | |
1217 | /* No need to adjust queue here since we are repeating the | |
1218 | most recent fixup. */ | |
1219 | } | |
1220 | } | |
6fa957a9 KH |
1221 | |
1222 | /* The difference must be less than 0x1000000. Use one | |
252b5132 RH |
1223 | more R_NO_RELOCATION entry to get to the right difference. */ |
1224 | if ((skip & 3) == 0 && skip <= 0xc0000 && skip > 0) | |
1225 | { | |
1226 | /* Difference can be handled in a simple single-byte | |
1227 | R_NO_RELOCATION entry. */ | |
1228 | if (skip <= 0x60) | |
1229 | { | |
1230 | bfd_put_8 (abfd, R_NO_RELOCATION + (skip >> 2) - 1, p); | |
1231 | *subspace_reloc_sizep += 1; | |
1232 | p++; | |
1233 | } | |
1234 | /* Handle it with a two byte R_NO_RELOCATION entry. */ | |
1235 | else if (skip <= 0x1000) | |
1236 | { | |
1237 | bfd_put_8 (abfd, R_NO_RELOCATION + 24 + (((skip >> 2) - 1) >> 8), p); | |
1238 | bfd_put_8 (abfd, (skip >> 2) - 1, p + 1); | |
1239 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue); | |
1240 | } | |
1241 | /* Handle it with a three byte R_NO_RELOCATION entry. */ | |
1242 | else | |
1243 | { | |
1244 | bfd_put_8 (abfd, R_NO_RELOCATION + 28 + (((skip >> 2) - 1) >> 16), p); | |
1245 | bfd_put_16 (abfd, (skip >> 2) - 1, p + 1); | |
1246 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue); | |
1247 | } | |
1248 | } | |
1249 | /* Ugh. Punt and use a 4 byte entry. */ | |
1250 | else if (skip > 0) | |
1251 | { | |
1252 | bfd_put_8 (abfd, R_NO_RELOCATION + 31, p); | |
1253 | bfd_put_8 (abfd, (skip - 1) >> 16, p + 1); | |
1254 | bfd_put_16 (abfd, skip - 1, p + 2); | |
1255 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue); | |
1256 | } | |
1257 | return p; | |
1258 | } | |
1259 | ||
1260 | /* Emit the proper R_DATA_OVERRIDE fixups to handle a nonzero addend | |
1261 | from a BFD relocation. Update the size of the subspace relocation | |
1262 | stream via SUBSPACE_RELOC_SIZE_P; also return the current pointer | |
1263 | into the relocation stream. */ | |
1264 | ||
1265 | static unsigned char * | |
1266 | som_reloc_addend (abfd, addend, p, subspace_reloc_sizep, queue) | |
1267 | bfd *abfd; | |
1268 | int addend; | |
1269 | unsigned char *p; | |
1270 | unsigned int *subspace_reloc_sizep; | |
1271 | struct reloc_queue *queue; | |
1272 | { | |
6fa957a9 | 1273 | if ((unsigned) (addend) + 0x80 < 0x100) |
252b5132 RH |
1274 | { |
1275 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 1, p); | |
1276 | bfd_put_8 (abfd, addend, p + 1); | |
6fa957a9 | 1277 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue); |
252b5132 RH |
1278 | } |
1279 | else if ((unsigned) (addend) + 0x8000 < 0x10000) | |
1280 | { | |
1281 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 2, p); | |
1282 | bfd_put_16 (abfd, addend, p + 1); | |
1283 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue); | |
1284 | } | |
1285 | else if ((unsigned) (addend) + 0x800000 < 0x1000000) | |
1286 | { | |
1287 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 3, p); | |
1288 | bfd_put_8 (abfd, addend >> 16, p + 1); | |
1289 | bfd_put_16 (abfd, addend, p + 2); | |
1290 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 4, queue); | |
1291 | } | |
1292 | else | |
1293 | { | |
1294 | bfd_put_8 (abfd, R_DATA_OVERRIDE + 4, p); | |
1295 | bfd_put_32 (abfd, addend, p + 1); | |
1296 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue); | |
1297 | } | |
1298 | return p; | |
1299 | } | |
1300 | ||
1301 | /* Handle a single function call relocation. */ | |
1302 | ||
1303 | static unsigned char * | |
1304 | som_reloc_call (abfd, p, subspace_reloc_sizep, bfd_reloc, sym_num, queue) | |
1305 | bfd *abfd; | |
1306 | unsigned char *p; | |
1307 | unsigned int *subspace_reloc_sizep; | |
1308 | arelent *bfd_reloc; | |
1309 | int sym_num; | |
1310 | struct reloc_queue *queue; | |
1311 | { | |
1312 | int arg_bits = HPPA_R_ARG_RELOC (bfd_reloc->addend); | |
1313 | int rtn_bits = arg_bits & 0x3; | |
1314 | int type, done = 0; | |
6fa957a9 | 1315 | |
252b5132 RH |
1316 | /* You'll never believe all this is necessary to handle relocations |
1317 | for function calls. Having to compute and pack the argument | |
1318 | relocation bits is the real nightmare. | |
6fa957a9 | 1319 | |
252b5132 RH |
1320 | If you're interested in how this works, just forget it. You really |
1321 | do not want to know about this braindamage. */ | |
1322 | ||
1323 | /* First see if this can be done with a "simple" relocation. Simple | |
1324 | relocations have a symbol number < 0x100 and have simple encodings | |
1325 | of argument relocations. */ | |
1326 | ||
1327 | if (sym_num < 0x100) | |
1328 | { | |
1329 | switch (arg_bits) | |
1330 | { | |
1331 | case 0: | |
1332 | case 1: | |
1333 | type = 0; | |
1334 | break; | |
1335 | case 1 << 8: | |
1336 | case 1 << 8 | 1: | |
1337 | type = 1; | |
1338 | break; | |
1339 | case 1 << 8 | 1 << 6: | |
1340 | case 1 << 8 | 1 << 6 | 1: | |
1341 | type = 2; | |
1342 | break; | |
1343 | case 1 << 8 | 1 << 6 | 1 << 4: | |
1344 | case 1 << 8 | 1 << 6 | 1 << 4 | 1: | |
1345 | type = 3; | |
1346 | break; | |
1347 | case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2: | |
1348 | case 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2 | 1: | |
1349 | type = 4; | |
1350 | break; | |
1351 | default: | |
1352 | /* Not one of the easy encodings. This will have to be | |
1353 | handled by the more complex code below. */ | |
1354 | type = -1; | |
1355 | break; | |
1356 | } | |
1357 | if (type != -1) | |
1358 | { | |
1359 | /* Account for the return value too. */ | |
1360 | if (rtn_bits) | |
1361 | type += 5; | |
1362 | ||
1363 | /* Emit a 2 byte relocation. Then see if it can be handled | |
1364 | with a relocation which is already in the relocation queue. */ | |
1365 | bfd_put_8 (abfd, bfd_reloc->howto->type + type, p); | |
1366 | bfd_put_8 (abfd, sym_num, p + 1); | |
1367 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 2, queue); | |
1368 | done = 1; | |
1369 | } | |
1370 | } | |
6fa957a9 | 1371 | |
252b5132 RH |
1372 | /* If this could not be handled with a simple relocation, then do a hard |
1373 | one. Hard relocations occur if the symbol number was too high or if | |
1374 | the encoding of argument relocation bits is too complex. */ | |
1375 | if (! done) | |
1376 | { | |
1377 | /* Don't ask about these magic sequences. I took them straight | |
1378 | from gas-1.36 which took them from the a.out man page. */ | |
1379 | type = rtn_bits; | |
1380 | if ((arg_bits >> 6 & 0xf) == 0xe) | |
1381 | type += 9 * 40; | |
1382 | else | |
1383 | type += (3 * (arg_bits >> 8 & 3) + (arg_bits >> 6 & 3)) * 40; | |
1384 | if ((arg_bits >> 2 & 0xf) == 0xe) | |
1385 | type += 9 * 4; | |
1386 | else | |
1387 | type += (3 * (arg_bits >> 4 & 3) + (arg_bits >> 2 & 3)) * 4; | |
6fa957a9 | 1388 | |
252b5132 RH |
1389 | /* Output the first two bytes of the relocation. These describe |
1390 | the length of the relocation and encoding style. */ | |
1391 | bfd_put_8 (abfd, bfd_reloc->howto->type + 10 | |
1392 | + 2 * (sym_num >= 0x100) + (type >= 0x100), | |
1393 | p); | |
1394 | bfd_put_8 (abfd, type, p + 1); | |
6fa957a9 | 1395 | |
252b5132 RH |
1396 | /* Now output the symbol index and see if this bizarre relocation |
1397 | just happened to be in the relocation queue. */ | |
1398 | if (sym_num < 0x100) | |
1399 | { | |
1400 | bfd_put_8 (abfd, sym_num, p + 2); | |
1401 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 3, queue); | |
1402 | } | |
1403 | else | |
1404 | { | |
1405 | bfd_put_8 (abfd, sym_num >> 16, p + 2); | |
1406 | bfd_put_16 (abfd, sym_num, p + 3); | |
1407 | p = try_prev_fixup (abfd, subspace_reloc_sizep, p, 5, queue); | |
1408 | } | |
1409 | } | |
1410 | return p; | |
1411 | } | |
1412 | ||
6fa957a9 | 1413 | /* Return the logarithm of X, base 2, considering X unsigned. |
252b5132 RH |
1414 | Abort -1 if X is not a power or two or is zero. */ |
1415 | ||
1416 | static int | |
1417 | log2 (x) | |
1418 | unsigned int x; | |
1419 | { | |
1420 | int log = 0; | |
1421 | ||
1422 | /* Test for 0 or a power of 2. */ | |
1423 | if (x == 0 || x != (x & -x)) | |
1424 | return -1; | |
1425 | ||
1426 | while ((x >>= 1) != 0) | |
1427 | log++; | |
1428 | return log; | |
1429 | } | |
1430 | ||
1431 | static bfd_reloc_status_type | |
1432 | hppa_som_reloc (abfd, reloc_entry, symbol_in, data, | |
1433 | input_section, output_bfd, error_message) | |
7dca057b | 1434 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 1435 | arelent *reloc_entry; |
7dca057b JL |
1436 | asymbol *symbol_in ATTRIBUTE_UNUSED; |
1437 | PTR data ATTRIBUTE_UNUSED; | |
252b5132 RH |
1438 | asection *input_section; |
1439 | bfd *output_bfd; | |
7dca057b | 1440 | char **error_message ATTRIBUTE_UNUSED; |
252b5132 RH |
1441 | { |
1442 | if (output_bfd) | |
1443 | { | |
1444 | reloc_entry->address += input_section->output_offset; | |
1445 | return bfd_reloc_ok; | |
1446 | } | |
1447 | return bfd_reloc_ok; | |
1448 | } | |
1449 | ||
1450 | /* Given a generic HPPA relocation type, the instruction format, | |
1451 | and a field selector, return one or more appropriate SOM relocations. */ | |
1452 | ||
1453 | int ** | |
1454 | hppa_som_gen_reloc_type (abfd, base_type, format, field, sym_diff, sym) | |
1455 | bfd *abfd; | |
1456 | int base_type; | |
1457 | int format; | |
1458 | enum hppa_reloc_field_selector_type_alt field; | |
1459 | int sym_diff; | |
1460 | asymbol *sym; | |
1461 | { | |
1462 | int *final_type, **final_types; | |
1463 | ||
1464 | final_types = (int **) bfd_alloc (abfd, sizeof (int *) * 6); | |
1465 | final_type = (int *) bfd_alloc (abfd, sizeof (int)); | |
1466 | if (!final_types || !final_type) | |
1467 | return NULL; | |
1468 | ||
6fa957a9 | 1469 | /* The field selector may require additional relocations to be |
252b5132 RH |
1470 | generated. It's impossible to know at this moment if additional |
1471 | relocations will be needed, so we make them. The code to actually | |
1472 | write the relocation/fixup stream is responsible for removing | |
1473 | any redundant relocations. */ | |
1474 | switch (field) | |
1475 | { | |
1476 | case e_fsel: | |
1477 | case e_psel: | |
1478 | case e_lpsel: | |
1479 | case e_rpsel: | |
1480 | final_types[0] = final_type; | |
1481 | final_types[1] = NULL; | |
1482 | final_types[2] = NULL; | |
1483 | *final_type = base_type; | |
1484 | break; | |
1485 | ||
1486 | case e_tsel: | |
1487 | case e_ltsel: | |
1488 | case e_rtsel: | |
1489 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1490 | if (!final_types[0]) | |
1491 | return NULL; | |
1492 | if (field == e_tsel) | |
1493 | *final_types[0] = R_FSEL; | |
1494 | else if (field == e_ltsel) | |
1495 | *final_types[0] = R_LSEL; | |
1496 | else | |
1497 | *final_types[0] = R_RSEL; | |
1498 | final_types[1] = final_type; | |
1499 | final_types[2] = NULL; | |
1500 | *final_type = base_type; | |
1501 | break; | |
1502 | ||
1503 | case e_lssel: | |
1504 | case e_rssel: | |
1505 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1506 | if (!final_types[0]) | |
1507 | return NULL; | |
1508 | *final_types[0] = R_S_MODE; | |
1509 | final_types[1] = final_type; | |
1510 | final_types[2] = NULL; | |
1511 | *final_type = base_type; | |
1512 | break; | |
1513 | ||
1514 | case e_lsel: | |
1515 | case e_rsel: | |
1516 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1517 | if (!final_types[0]) | |
1518 | return NULL; | |
1519 | *final_types[0] = R_N_MODE; | |
1520 | final_types[1] = final_type; | |
1521 | final_types[2] = NULL; | |
1522 | *final_type = base_type; | |
1523 | break; | |
1524 | ||
1525 | case e_ldsel: | |
1526 | case e_rdsel: | |
1527 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1528 | if (!final_types[0]) | |
1529 | return NULL; | |
1530 | *final_types[0] = R_D_MODE; | |
1531 | final_types[1] = final_type; | |
1532 | final_types[2] = NULL; | |
1533 | *final_type = base_type; | |
1534 | break; | |
1535 | ||
1536 | case e_lrsel: | |
1537 | case e_rrsel: | |
1538 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1539 | if (!final_types[0]) | |
1540 | return NULL; | |
1541 | *final_types[0] = R_R_MODE; | |
1542 | final_types[1] = final_type; | |
1543 | final_types[2] = NULL; | |
1544 | *final_type = base_type; | |
1545 | break; | |
1546 | ||
1547 | case e_nsel: | |
1548 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1549 | if (!final_types[0]) | |
1550 | return NULL; | |
1551 | *final_types[0] = R_N1SEL; | |
1552 | final_types[1] = final_type; | |
1553 | final_types[2] = NULL; | |
1554 | *final_type = base_type; | |
1555 | break; | |
1556 | ||
1557 | case e_nlsel: | |
1558 | case e_nlrsel: | |
1559 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1560 | if (!final_types[0]) | |
1561 | return NULL; | |
1562 | *final_types[0] = R_N0SEL; | |
1563 | final_types[1] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1564 | if (!final_types[1]) | |
1565 | return NULL; | |
1566 | if (field == e_nlsel) | |
1567 | *final_types[1] = R_N_MODE; | |
1568 | else | |
1569 | *final_types[1] = R_R_MODE; | |
1570 | final_types[2] = final_type; | |
1571 | final_types[3] = NULL; | |
1572 | *final_type = base_type; | |
1573 | break; | |
1574 | } | |
6fa957a9 | 1575 | |
252b5132 RH |
1576 | switch (base_type) |
1577 | { | |
1578 | case R_HPPA: | |
1579 | /* The difference of two symbols needs *very* special handling. */ | |
1580 | if (sym_diff) | |
1581 | { | |
1582 | final_types[0] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1583 | final_types[1] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1584 | final_types[2] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1585 | final_types[3] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1586 | if (!final_types[0] || !final_types[1] || !final_types[2]) | |
1587 | return NULL; | |
1588 | if (field == e_fsel) | |
1589 | *final_types[0] = R_FSEL; | |
1590 | else if (field == e_rsel) | |
1591 | *final_types[0] = R_RSEL; | |
1592 | else if (field == e_lsel) | |
1593 | *final_types[0] = R_LSEL; | |
1594 | *final_types[1] = R_COMP2; | |
1595 | *final_types[2] = R_COMP2; | |
1596 | *final_types[3] = R_COMP1; | |
1597 | final_types[4] = final_type; | |
1598 | if (format == 32) | |
1599 | *final_types[4] = R_DATA_EXPR; | |
1600 | else | |
1601 | *final_types[4] = R_CODE_EXPR; | |
1602 | final_types[5] = NULL; | |
1603 | break; | |
1604 | } | |
1605 | /* PLABELs get their own relocation type. */ | |
1606 | else if (field == e_psel | |
1607 | || field == e_lpsel | |
1608 | || field == e_rpsel) | |
1609 | { | |
1610 | /* A PLABEL relocation that has a size of 32 bits must | |
1611 | be a R_DATA_PLABEL. All others are R_CODE_PLABELs. */ | |
1612 | if (format == 32) | |
1613 | *final_type = R_DATA_PLABEL; | |
1614 | else | |
1615 | *final_type = R_CODE_PLABEL; | |
1616 | } | |
1617 | /* PIC stuff. */ | |
1618 | else if (field == e_tsel | |
1619 | || field == e_ltsel | |
1620 | || field == e_rtsel) | |
1621 | *final_type = R_DLT_REL; | |
1622 | /* A relocation in the data space is always a full 32bits. */ | |
1623 | else if (format == 32) | |
1624 | { | |
1625 | *final_type = R_DATA_ONE_SYMBOL; | |
1626 | ||
1627 | /* If there's no SOM symbol type associated with this BFD | |
1628 | symbol, then set the symbol type to ST_DATA. | |
1629 | ||
1630 | Only do this if the type is going to default later when | |
1631 | we write the object file. | |
1632 | ||
1633 | This is done so that the linker never encounters an | |
1634 | R_DATA_ONE_SYMBOL reloc involving an ST_CODE symbol. | |
1635 | ||
1636 | This allows the compiler to generate exception handling | |
1637 | tables. | |
1638 | ||
1639 | Note that one day we may need to also emit BEGIN_BRTAB and | |
1640 | END_BRTAB to prevent the linker from optimizing away insns | |
1641 | in exception handling regions. */ | |
1642 | if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN | |
1643 | && (sym->flags & BSF_SECTION_SYM) == 0 | |
1644 | && (sym->flags & BSF_FUNCTION) == 0 | |
1645 | && ! bfd_is_com_section (sym->section)) | |
1646 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA; | |
1647 | } | |
1648 | break; | |
1649 | ||
252b5132 RH |
1650 | case R_HPPA_GOTOFF: |
1651 | /* More PLABEL special cases. */ | |
1652 | if (field == e_psel | |
1653 | || field == e_lpsel | |
1654 | || field == e_rpsel) | |
1655 | *final_type = R_DATA_PLABEL; | |
1656 | break; | |
1657 | ||
1658 | case R_HPPA_COMPLEX: | |
1659 | /* The difference of two symbols needs *very* special handling. */ | |
1660 | if (sym_diff) | |
1661 | { | |
1662 | final_types[0] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1663 | final_types[1] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1664 | final_types[2] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1665 | final_types[3] = (int *)bfd_alloc (abfd, sizeof (int)); | |
1666 | if (!final_types[0] || !final_types[1] || !final_types[2]) | |
1667 | return NULL; | |
1668 | if (field == e_fsel) | |
1669 | *final_types[0] = R_FSEL; | |
1670 | else if (field == e_rsel) | |
1671 | *final_types[0] = R_RSEL; | |
1672 | else if (field == e_lsel) | |
1673 | *final_types[0] = R_LSEL; | |
1674 | *final_types[1] = R_COMP2; | |
1675 | *final_types[2] = R_COMP2; | |
1676 | *final_types[3] = R_COMP1; | |
1677 | final_types[4] = final_type; | |
1678 | if (format == 32) | |
1679 | *final_types[4] = R_DATA_EXPR; | |
1680 | else | |
1681 | *final_types[4] = R_CODE_EXPR; | |
1682 | final_types[5] = NULL; | |
1683 | break; | |
1684 | } | |
1685 | else | |
1686 | break; | |
1687 | ||
1688 | case R_HPPA_NONE: | |
1689 | case R_HPPA_ABS_CALL: | |
252b5132 RH |
1690 | /* Right now we can default all these. */ |
1691 | break; | |
2667095f JL |
1692 | |
1693 | case R_HPPA_PCREL_CALL: | |
1694 | { | |
1695 | #ifndef NO_PCREL_MODES | |
1696 | /* If we have short and long pcrel modes, then generate the proper | |
1697 | mode selector, then the pcrel relocation. Redundant selectors | |
1698 | will be eliminted as the relocs are sized and emitted. */ | |
1699 | final_types[0] = (int *) bfd_alloc (abfd, sizeof (int)); | |
1700 | if (!final_types[0]) | |
1701 | return NULL; | |
1702 | if (format == 17) | |
1703 | *final_types[0] = R_SHORT_PCREL_MODE; | |
1704 | else | |
1705 | *final_types[0] = R_LONG_PCREL_MODE; | |
1706 | final_types[1] = final_type; | |
1707 | final_types[2] = NULL; | |
1708 | *final_type = base_type; | |
1709 | #endif | |
1710 | break; | |
1711 | } | |
252b5132 RH |
1712 | } |
1713 | return final_types; | |
1714 | } | |
1715 | ||
1716 | /* Return the address of the correct entry in the PA SOM relocation | |
1717 | howto table. */ | |
1718 | ||
1719 | /*ARGSUSED*/ | |
1720 | static reloc_howto_type * | |
1721 | som_bfd_reloc_type_lookup (abfd, code) | |
7dca057b | 1722 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1723 | bfd_reloc_code_real_type code; |
1724 | { | |
1725 | if ((int) code < (int) R_NO_RELOCATION + 255) | |
1726 | { | |
1727 | BFD_ASSERT ((int) som_hppa_howto_table[(int) code].type == (int) code); | |
1728 | return &som_hppa_howto_table[(int) code]; | |
1729 | } | |
1730 | ||
1731 | return (reloc_howto_type *) 0; | |
1732 | } | |
1733 | ||
1734 | /* Perform some initialization for an object. Save results of this | |
1735 | initialization in the BFD. */ | |
1736 | ||
1737 | static const bfd_target * | |
1738 | som_object_setup (abfd, file_hdrp, aux_hdrp, current_offset) | |
1739 | bfd *abfd; | |
1740 | struct header *file_hdrp; | |
1741 | struct som_exec_auxhdr *aux_hdrp; | |
1742 | unsigned long current_offset; | |
1743 | { | |
1744 | asection *section; | |
1745 | int found; | |
1746 | ||
1747 | /* som_mkobject will set bfd_error if som_mkobject fails. */ | |
1748 | if (som_mkobject (abfd) != true) | |
1749 | return 0; | |
1750 | ||
1751 | /* Set BFD flags based on what information is available in the SOM. */ | |
1752 | abfd->flags = BFD_NO_FLAGS; | |
1753 | if (file_hdrp->symbol_total) | |
1754 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; | |
1755 | ||
1756 | switch (file_hdrp->a_magic) | |
1757 | { | |
1758 | case DEMAND_MAGIC: | |
1759 | abfd->flags |= (D_PAGED | WP_TEXT | EXEC_P); | |
1760 | break; | |
1761 | case SHARE_MAGIC: | |
1762 | abfd->flags |= (WP_TEXT | EXEC_P); | |
1763 | break; | |
1764 | case EXEC_MAGIC: | |
1765 | abfd->flags |= (EXEC_P); | |
1766 | break; | |
1767 | case RELOC_MAGIC: | |
1768 | abfd->flags |= HAS_RELOC; | |
1769 | break; | |
1770 | #ifdef SHL_MAGIC | |
1771 | case SHL_MAGIC: | |
1772 | #endif | |
1773 | #ifdef DL_MAGIC | |
1774 | case DL_MAGIC: | |
1775 | #endif | |
1776 | abfd->flags |= DYNAMIC; | |
1777 | break; | |
1778 | ||
1779 | default: | |
1780 | break; | |
1781 | } | |
1782 | ||
1783 | /* Allocate space to hold the saved exec header information. */ | |
1784 | obj_som_exec_data (abfd) = (struct som_exec_data *) | |
1785 | bfd_zalloc (abfd, sizeof (struct som_exec_data )); | |
1786 | if (obj_som_exec_data (abfd) == NULL) | |
1787 | return NULL; | |
1788 | ||
1789 | /* The braindamaged OSF1 linker switched exec_flags and exec_entry! | |
1790 | ||
1791 | We used to identify OSF1 binaries based on NEW_VERSION_ID, but | |
1792 | apparently the latest HPUX linker is using NEW_VERSION_ID now. | |
1793 | ||
1794 | It's about time, OSF has used the new id since at least 1992; | |
1795 | HPUX didn't start till nearly 1995!. | |
6fa957a9 | 1796 | |
252b5132 RH |
1797 | The new approach examines the entry field. If it's zero or not 4 |
1798 | byte aligned then it's not a proper code address and we guess it's | |
1799 | really the executable flags. */ | |
1800 | found = 0; | |
1801 | for (section = abfd->sections; section; section = section->next) | |
1802 | { | |
1803 | if ((section->flags & SEC_CODE) == 0) | |
1804 | continue; | |
1805 | if (aux_hdrp->exec_entry >= section->vma | |
1806 | && aux_hdrp->exec_entry < section->vma + section->_cooked_size) | |
1807 | found = 1; | |
1808 | } | |
1809 | if (aux_hdrp->exec_entry == 0 | |
1810 | || (aux_hdrp->exec_entry & 0x3) != 0 | |
1811 | || ! found) | |
1812 | { | |
1813 | bfd_get_start_address (abfd) = aux_hdrp->exec_flags; | |
1814 | obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry; | |
1815 | } | |
1816 | else | |
1817 | { | |
1818 | bfd_get_start_address (abfd) = aux_hdrp->exec_entry + current_offset; | |
1819 | obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_flags; | |
1820 | } | |
1821 | ||
1822 | bfd_default_set_arch_mach (abfd, bfd_arch_hppa, pa10); | |
1823 | bfd_get_symcount (abfd) = file_hdrp->symbol_total; | |
1824 | ||
6fa957a9 | 1825 | /* Initialize the saved symbol table and string table to NULL. |
252b5132 RH |
1826 | Save important offsets and sizes from the SOM header into |
1827 | the BFD. */ | |
1828 | obj_som_stringtab (abfd) = (char *) NULL; | |
1829 | obj_som_symtab (abfd) = (som_symbol_type *) NULL; | |
1830 | obj_som_sorted_syms (abfd) = NULL; | |
1831 | obj_som_stringtab_size (abfd) = file_hdrp->symbol_strings_size; | |
1832 | obj_som_sym_filepos (abfd) = file_hdrp->symbol_location + current_offset; | |
1833 | obj_som_str_filepos (abfd) = (file_hdrp->symbol_strings_location | |
1834 | + current_offset); | |
1835 | obj_som_reloc_filepos (abfd) = (file_hdrp->fixup_request_location | |
1836 | + current_offset); | |
1837 | obj_som_exec_data (abfd)->system_id = file_hdrp->system_id; | |
1838 | ||
1839 | return abfd->xvec; | |
1840 | } | |
1841 | ||
1842 | /* Convert all of the space and subspace info into BFD sections. Each space | |
1843 | contains a number of subspaces, which in turn describe the mapping between | |
1844 | regions of the exec file, and the address space that the program runs in. | |
1845 | BFD sections which correspond to spaces will overlap the sections for the | |
1846 | associated subspaces. */ | |
1847 | ||
1848 | static boolean | |
1849 | setup_sections (abfd, file_hdr, current_offset) | |
1850 | bfd *abfd; | |
1851 | struct header *file_hdr; | |
1852 | unsigned long current_offset; | |
1853 | { | |
1854 | char *space_strings; | |
1855 | unsigned int space_index, i; | |
1856 | unsigned int total_subspaces = 0; | |
1857 | asection **subspace_sections, *section; | |
1858 | ||
1859 | /* First, read in space names */ | |
1860 | ||
1861 | space_strings = bfd_malloc (file_hdr->space_strings_size); | |
1862 | if (!space_strings && file_hdr->space_strings_size != 0) | |
1863 | goto error_return; | |
1864 | ||
6fa957a9 | 1865 | if (bfd_seek (abfd, current_offset + file_hdr->space_strings_location, |
252b5132 RH |
1866 | SEEK_SET) < 0) |
1867 | goto error_return; | |
1868 | if (bfd_read (space_strings, 1, file_hdr->space_strings_size, abfd) | |
1869 | != file_hdr->space_strings_size) | |
1870 | goto error_return; | |
1871 | ||
1872 | /* Loop over all of the space dictionaries, building up sections */ | |
1873 | for (space_index = 0; space_index < file_hdr->space_total; space_index++) | |
1874 | { | |
1875 | struct space_dictionary_record space; | |
1876 | struct subspace_dictionary_record subspace, save_subspace; | |
1877 | int subspace_index; | |
1878 | asection *space_asect; | |
1879 | char *newname; | |
1880 | ||
1881 | /* Read the space dictionary element */ | |
1882 | if (bfd_seek (abfd, | |
1883 | (current_offset + file_hdr->space_location | |
1884 | + space_index * sizeof space), | |
1885 | SEEK_SET) < 0) | |
1886 | goto error_return; | |
1887 | if (bfd_read (&space, 1, sizeof space, abfd) != sizeof space) | |
1888 | goto error_return; | |
1889 | ||
1890 | /* Setup the space name string */ | |
1891 | space.name.n_name = space.name.n_strx + space_strings; | |
1892 | ||
1893 | /* Make a section out of it */ | |
1894 | newname = bfd_alloc (abfd, strlen (space.name.n_name) + 1); | |
1895 | if (!newname) | |
1896 | goto error_return; | |
1897 | strcpy (newname, space.name.n_name); | |
6fa957a9 | 1898 | |
252b5132 RH |
1899 | space_asect = bfd_make_section_anyway (abfd, newname); |
1900 | if (!space_asect) | |
1901 | goto error_return; | |
1902 | ||
1903 | if (space.is_loadable == 0) | |
1904 | space_asect->flags |= SEC_DEBUGGING; | |
1905 | ||
1906 | /* Set up all the attributes for the space. */ | |
1907 | if (bfd_som_set_section_attributes (space_asect, space.is_defined, | |
1908 | space.is_private, space.sort_key, | |
1909 | space.space_number) == false) | |
1910 | goto error_return; | |
1911 | ||
1912 | /* If the space has no subspaces, then we're done. */ | |
1913 | if (space.subspace_quantity == 0) | |
1914 | continue; | |
1915 | ||
1916 | /* Now, read in the first subspace for this space */ | |
1917 | if (bfd_seek (abfd, | |
1918 | (current_offset + file_hdr->subspace_location | |
1919 | + space.subspace_index * sizeof subspace), | |
1920 | SEEK_SET) < 0) | |
1921 | goto error_return; | |
1922 | if (bfd_read (&subspace, 1, sizeof subspace, abfd) != sizeof subspace) | |
1923 | goto error_return; | |
1924 | /* Seek back to the start of the subspaces for loop below */ | |
1925 | if (bfd_seek (abfd, | |
1926 | (current_offset + file_hdr->subspace_location | |
1927 | + space.subspace_index * sizeof subspace), | |
1928 | SEEK_SET) < 0) | |
1929 | goto error_return; | |
1930 | ||
1931 | /* Setup the start address and file loc from the first subspace record */ | |
1932 | space_asect->vma = subspace.subspace_start; | |
1933 | space_asect->filepos = subspace.file_loc_init_value + current_offset; | |
1934 | space_asect->alignment_power = log2 (subspace.alignment); | |
1935 | if (space_asect->alignment_power == -1) | |
1936 | goto error_return; | |
1937 | ||
1938 | /* Initialize save_subspace so we can reliably determine if this | |
1939 | loop placed any useful values into it. */ | |
1940 | memset (&save_subspace, 0, sizeof (struct subspace_dictionary_record)); | |
1941 | ||
1942 | /* Loop over the rest of the subspaces, building up more sections */ | |
1943 | for (subspace_index = 0; subspace_index < space.subspace_quantity; | |
1944 | subspace_index++) | |
1945 | { | |
1946 | asection *subspace_asect; | |
1947 | ||
1948 | /* Read in the next subspace */ | |
1949 | if (bfd_read (&subspace, 1, sizeof subspace, abfd) | |
1950 | != sizeof subspace) | |
1951 | goto error_return; | |
1952 | ||
1953 | /* Setup the subspace name string */ | |
1954 | subspace.name.n_name = subspace.name.n_strx + space_strings; | |
1955 | ||
1956 | newname = bfd_alloc (abfd, strlen (subspace.name.n_name) + 1); | |
1957 | if (!newname) | |
1958 | goto error_return; | |
1959 | strcpy (newname, subspace.name.n_name); | |
1960 | ||
1961 | /* Make a section out of this subspace */ | |
1962 | subspace_asect = bfd_make_section_anyway (abfd, newname); | |
1963 | if (!subspace_asect) | |
1964 | goto error_return; | |
1965 | ||
1966 | /* Store private information about the section. */ | |
1967 | if (bfd_som_set_subsection_attributes (subspace_asect, space_asect, | |
1968 | subspace.access_control_bits, | |
1969 | subspace.sort_key, | |
1970 | subspace.quadrant) == false) | |
1971 | goto error_return; | |
1972 | ||
6fa957a9 | 1973 | /* Keep an easy mapping between subspaces and sections. |
252b5132 RH |
1974 | Note we do not necessarily read the subspaces in the |
1975 | same order in which they appear in the object file. | |
1976 | ||
1977 | So to make the target index come out correctly, we | |
1978 | store the location of the subspace header in target | |
1979 | index, then sort using the location of the subspace | |
1980 | header as the key. Then we can assign correct | |
1981 | subspace indices. */ | |
1982 | total_subspaces++; | |
1983 | subspace_asect->target_index = bfd_tell (abfd) - sizeof (subspace); | |
1984 | ||
1985 | /* Set SEC_READONLY and SEC_CODE/SEC_DATA as specified | |
1986 | by the access_control_bits in the subspace header. */ | |
1987 | switch (subspace.access_control_bits >> 4) | |
1988 | { | |
6fa957a9 | 1989 | /* Readonly data. */ |
252b5132 RH |
1990 | case 0x0: |
1991 | subspace_asect->flags |= SEC_DATA | SEC_READONLY; | |
1992 | break; | |
1993 | ||
6fa957a9 | 1994 | /* Normal data. */ |
252b5132 RH |
1995 | case 0x1: |
1996 | subspace_asect->flags |= SEC_DATA; | |
1997 | break; | |
1998 | ||
1999 | /* Readonly code and the gateways. | |
2000 | Gateways have other attributes which do not map | |
2001 | into anything BFD knows about. */ | |
2002 | case 0x2: | |
2003 | case 0x4: | |
2004 | case 0x5: | |
2005 | case 0x6: | |
2006 | case 0x7: | |
2007 | subspace_asect->flags |= SEC_CODE | SEC_READONLY; | |
2008 | break; | |
2009 | ||
2010 | /* dynamic (writable) code. */ | |
2011 | case 0x3: | |
2012 | subspace_asect->flags |= SEC_CODE; | |
2013 | break; | |
2014 | } | |
6fa957a9 KH |
2015 | |
2016 | if (subspace.dup_common || subspace.is_common) | |
252b5132 RH |
2017 | subspace_asect->flags |= SEC_IS_COMMON; |
2018 | else if (subspace.subspace_length > 0) | |
2019 | subspace_asect->flags |= SEC_HAS_CONTENTS; | |
2020 | ||
2021 | if (subspace.is_loadable) | |
2022 | subspace_asect->flags |= SEC_ALLOC | SEC_LOAD; | |
2023 | else | |
2024 | subspace_asect->flags |= SEC_DEBUGGING; | |
2025 | ||
2026 | if (subspace.code_only) | |
2027 | subspace_asect->flags |= SEC_CODE; | |
2028 | ||
2029 | /* Both file_loc_init_value and initialization_length will | |
2030 | be zero for a BSS like subspace. */ | |
2031 | if (subspace.file_loc_init_value == 0 | |
2032 | && subspace.initialization_length == 0) | |
2033 | subspace_asect->flags &= ~(SEC_DATA | SEC_LOAD | SEC_HAS_CONTENTS); | |
2034 | ||
2035 | /* This subspace has relocations. | |
2036 | The fixup_request_quantity is a byte count for the number of | |
2037 | entries in the relocation stream; it is not the actual number | |
2038 | of relocations in the subspace. */ | |
2039 | if (subspace.fixup_request_quantity != 0) | |
2040 | { | |
2041 | subspace_asect->flags |= SEC_RELOC; | |
2042 | subspace_asect->rel_filepos = subspace.fixup_request_index; | |
2043 | som_section_data (subspace_asect)->reloc_size | |
2044 | = subspace.fixup_request_quantity; | |
6fa957a9 | 2045 | /* We can not determine this yet. When we read in the |
252b5132 RH |
2046 | relocation table the correct value will be filled in. */ |
2047 | subspace_asect->reloc_count = -1; | |
2048 | } | |
2049 | ||
2050 | /* Update save_subspace if appropriate. */ | |
2051 | if (subspace.file_loc_init_value > save_subspace.file_loc_init_value) | |
2052 | save_subspace = subspace; | |
2053 | ||
2054 | subspace_asect->vma = subspace.subspace_start; | |
2055 | subspace_asect->_cooked_size = subspace.subspace_length; | |
2056 | subspace_asect->_raw_size = subspace.subspace_length; | |
2057 | subspace_asect->filepos = (subspace.file_loc_init_value | |
2058 | + current_offset); | |
2059 | subspace_asect->alignment_power = log2 (subspace.alignment); | |
2060 | if (subspace_asect->alignment_power == -1) | |
2061 | goto error_return; | |
2062 | } | |
2063 | ||
2064 | /* This can happen for a .o which defines symbols in otherwise | |
2065 | empty subspaces. */ | |
2066 | if (!save_subspace.file_loc_init_value) | |
2067 | { | |
2068 | space_asect->_cooked_size = 0; | |
2069 | space_asect->_raw_size = 0; | |
2070 | } | |
2071 | else | |
2072 | { | |
2073 | /* Setup the sizes for the space section based upon the info in the | |
2074 | last subspace of the space. */ | |
2075 | space_asect->_cooked_size = (save_subspace.subspace_start | |
2076 | - space_asect->vma | |
2077 | + save_subspace.subspace_length); | |
2078 | space_asect->_raw_size = (save_subspace.file_loc_init_value | |
2079 | - space_asect->filepos | |
2080 | + save_subspace.initialization_length); | |
2081 | } | |
2082 | } | |
2083 | /* Now that we've read in all the subspace records, we need to assign | |
2084 | a target index to each subspace. */ | |
2085 | subspace_sections = (asection **) bfd_malloc (total_subspaces | |
2086 | * sizeof (asection *)); | |
2087 | if (subspace_sections == NULL) | |
2088 | goto error_return; | |
2089 | ||
2090 | for (i = 0, section = abfd->sections; section; section = section->next) | |
2091 | { | |
2092 | if (!som_is_subspace (section)) | |
2093 | continue; | |
2094 | ||
2095 | subspace_sections[i] = section; | |
2096 | i++; | |
2097 | } | |
2098 | qsort (subspace_sections, total_subspaces, | |
2099 | sizeof (asection *), compare_subspaces); | |
6fa957a9 | 2100 | |
252b5132 RH |
2101 | /* subspace_sections is now sorted in the order in which the subspaces |
2102 | appear in the object file. Assign an index to each one now. */ | |
2103 | for (i = 0; i < total_subspaces; i++) | |
2104 | subspace_sections[i]->target_index = i; | |
2105 | ||
2106 | if (space_strings != NULL) | |
2107 | free (space_strings); | |
2108 | ||
2109 | if (subspace_sections != NULL) | |
2110 | free (subspace_sections); | |
2111 | ||
2112 | return true; | |
2113 | ||
2114 | error_return: | |
2115 | if (space_strings != NULL) | |
2116 | free (space_strings); | |
2117 | ||
2118 | if (subspace_sections != NULL) | |
2119 | free (subspace_sections); | |
2120 | return false; | |
2121 | } | |
2122 | ||
2123 | /* Read in a SOM object and make it into a BFD. */ | |
2124 | ||
2125 | static const bfd_target * | |
2126 | som_object_p (abfd) | |
2127 | bfd *abfd; | |
2128 | { | |
2129 | struct header file_hdr; | |
2130 | struct som_exec_auxhdr aux_hdr; | |
2131 | unsigned long current_offset = 0; | |
2132 | struct lst_header lst_header; | |
2133 | struct som_entry som_entry; | |
6fa957a9 | 2134 | #define ENTRY_SIZE sizeof (struct som_entry) |
252b5132 RH |
2135 | |
2136 | if (bfd_read ((PTR) & file_hdr, 1, FILE_HDR_SIZE, abfd) != FILE_HDR_SIZE) | |
2137 | { | |
2138 | if (bfd_get_error () != bfd_error_system_call) | |
2139 | bfd_set_error (bfd_error_wrong_format); | |
2140 | return 0; | |
2141 | } | |
2142 | ||
2143 | if (!_PA_RISC_ID (file_hdr.system_id)) | |
2144 | { | |
2145 | bfd_set_error (bfd_error_wrong_format); | |
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | switch (file_hdr.a_magic) | |
2150 | { | |
2151 | case RELOC_MAGIC: | |
2152 | case EXEC_MAGIC: | |
2153 | case SHARE_MAGIC: | |
2154 | case DEMAND_MAGIC: | |
2155 | #ifdef DL_MAGIC | |
2156 | case DL_MAGIC: | |
2157 | #endif | |
2158 | #ifdef SHL_MAGIC | |
2159 | case SHL_MAGIC: | |
2160 | #endif | |
2161 | #ifdef SHARED_MAGIC_CNX | |
2162 | case SHARED_MAGIC_CNX: | |
2163 | #endif | |
2164 | break; | |
2165 | ||
2166 | #ifdef EXECLIBMAGIC | |
2167 | case EXECLIBMAGIC: | |
2168 | /* Read the lst header and determine where the SOM directory begins */ | |
2169 | ||
2170 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) < 0) | |
2171 | { | |
2172 | if (bfd_get_error () != bfd_error_system_call) | |
2173 | bfd_set_error (bfd_error_wrong_format); | |
2174 | return 0; | |
2175 | } | |
2176 | ||
2177 | if (bfd_read ((PTR) & lst_header, 1, SLSTHDR, abfd) != SLSTHDR) | |
2178 | { | |
2179 | if (bfd_get_error () != bfd_error_system_call) | |
2180 | bfd_set_error (bfd_error_wrong_format); | |
2181 | return 0; | |
2182 | } | |
2183 | ||
2184 | /* Position to and read the first directory entry */ | |
2185 | ||
2186 | if (bfd_seek (abfd, lst_header.dir_loc, SEEK_SET) < 0) | |
2187 | { | |
2188 | if (bfd_get_error () != bfd_error_system_call) | |
2189 | bfd_set_error (bfd_error_wrong_format); | |
2190 | return 0; | |
2191 | } | |
2192 | ||
2193 | if (bfd_read ((PTR) & som_entry, 1, ENTRY_SIZE, abfd) != ENTRY_SIZE) | |
2194 | { | |
2195 | if (bfd_get_error () != bfd_error_system_call) | |
2196 | bfd_set_error (bfd_error_wrong_format); | |
2197 | return 0; | |
2198 | } | |
2199 | ||
2200 | /* Now position to the first SOM */ | |
2201 | ||
2202 | if (bfd_seek (abfd, som_entry.location, SEEK_SET) < 0) | |
2203 | { | |
2204 | if (bfd_get_error () != bfd_error_system_call) | |
2205 | bfd_set_error (bfd_error_wrong_format); | |
2206 | return 0; | |
2207 | } | |
2208 | ||
2209 | current_offset = som_entry.location; | |
2210 | ||
2211 | /* And finally, re-read the som header */ | |
2212 | ||
2213 | if (bfd_read ((PTR) & file_hdr, 1, FILE_HDR_SIZE, abfd) != FILE_HDR_SIZE) | |
2214 | { | |
2215 | if (bfd_get_error () != bfd_error_system_call) | |
2216 | bfd_set_error (bfd_error_wrong_format); | |
2217 | return 0; | |
2218 | } | |
2219 | ||
2220 | break; | |
2221 | #endif | |
2222 | ||
2223 | default: | |
2224 | bfd_set_error (bfd_error_wrong_format); | |
2225 | return 0; | |
2226 | } | |
2227 | ||
2228 | if (file_hdr.version_id != VERSION_ID | |
2229 | && file_hdr.version_id != NEW_VERSION_ID) | |
2230 | { | |
2231 | bfd_set_error (bfd_error_wrong_format); | |
2232 | return 0; | |
2233 | } | |
2234 | ||
2235 | /* If the aux_header_size field in the file header is zero, then this | |
2236 | object is an incomplete executable (a .o file). Do not try to read | |
2237 | a non-existant auxiliary header. */ | |
2238 | memset (&aux_hdr, 0, sizeof (struct som_exec_auxhdr)); | |
2239 | if (file_hdr.aux_header_size != 0) | |
2240 | { | |
2241 | if (bfd_read ((PTR) & aux_hdr, 1, AUX_HDR_SIZE, abfd) != AUX_HDR_SIZE) | |
2242 | { | |
2243 | if (bfd_get_error () != bfd_error_system_call) | |
2244 | bfd_set_error (bfd_error_wrong_format); | |
2245 | return 0; | |
2246 | } | |
2247 | } | |
2248 | ||
2249 | if (!setup_sections (abfd, &file_hdr, current_offset)) | |
2250 | { | |
2251 | /* setup_sections does not bubble up a bfd error code. */ | |
2252 | bfd_set_error (bfd_error_bad_value); | |
2253 | return 0; | |
2254 | } | |
2255 | ||
2256 | /* This appears to be a valid SOM object. Do some initialization. */ | |
2257 | return som_object_setup (abfd, &file_hdr, &aux_hdr, current_offset); | |
2258 | } | |
2259 | ||
2260 | /* Create a SOM object. */ | |
2261 | ||
2262 | static boolean | |
2263 | som_mkobject (abfd) | |
2264 | bfd *abfd; | |
2265 | { | |
2266 | /* Allocate memory to hold backend information. */ | |
2267 | abfd->tdata.som_data = (struct som_data_struct *) | |
2268 | bfd_zalloc (abfd, sizeof (struct som_data_struct)); | |
2269 | if (abfd->tdata.som_data == NULL) | |
2270 | return false; | |
2271 | return true; | |
2272 | } | |
2273 | ||
2274 | /* Initialize some information in the file header. This routine makes | |
2275 | not attempt at doing the right thing for a full executable; it | |
2276 | is only meant to handle relocatable objects. */ | |
2277 | ||
2278 | static boolean | |
2279 | som_prep_headers (abfd) | |
2280 | bfd *abfd; | |
2281 | { | |
2282 | struct header *file_hdr; | |
2283 | asection *section; | |
2284 | ||
2285 | /* Make and attach a file header to the BFD. */ | |
2286 | file_hdr = (struct header *) bfd_zalloc (abfd, sizeof (struct header)); | |
2287 | if (file_hdr == NULL) | |
2288 | return false; | |
2289 | obj_som_file_hdr (abfd) = file_hdr; | |
2290 | ||
2291 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
2292 | { | |
2293 | ||
2294 | /* Make and attach an exec header to the BFD. */ | |
2295 | obj_som_exec_hdr (abfd) = (struct som_exec_auxhdr *) | |
2296 | bfd_zalloc (abfd, sizeof (struct som_exec_auxhdr)); | |
2297 | if (obj_som_exec_hdr (abfd) == NULL) | |
2298 | return false; | |
2299 | ||
2300 | if (abfd->flags & D_PAGED) | |
2301 | file_hdr->a_magic = DEMAND_MAGIC; | |
2302 | else if (abfd->flags & WP_TEXT) | |
2303 | file_hdr->a_magic = SHARE_MAGIC; | |
2304 | #ifdef SHL_MAGIC | |
2305 | else if (abfd->flags & DYNAMIC) | |
2306 | file_hdr->a_magic = SHL_MAGIC; | |
2307 | #endif | |
2308 | else | |
2309 | file_hdr->a_magic = EXEC_MAGIC; | |
2310 | } | |
2311 | else | |
2312 | file_hdr->a_magic = RELOC_MAGIC; | |
2313 | ||
2314 | /* Only new format SOM is supported. */ | |
2315 | file_hdr->version_id = NEW_VERSION_ID; | |
2316 | ||
2317 | /* These fields are optional, and embedding timestamps is not always | |
2318 | a wise thing to do, it makes comparing objects during a multi-stage | |
2319 | bootstrap difficult. */ | |
2320 | file_hdr->file_time.secs = 0; | |
6fa957a9 | 2321 | file_hdr->file_time.nanosecs = 0; |
252b5132 RH |
2322 | |
2323 | file_hdr->entry_space = 0; | |
2324 | file_hdr->entry_subspace = 0; | |
2325 | file_hdr->entry_offset = 0; | |
2326 | file_hdr->presumed_dp = 0; | |
2327 | ||
2328 | /* Now iterate over the sections translating information from | |
2329 | BFD sections to SOM spaces/subspaces. */ | |
2330 | ||
2331 | for (section = abfd->sections; section != NULL; section = section->next) | |
2332 | { | |
2333 | /* Ignore anything which has not been marked as a space or | |
2334 | subspace. */ | |
2335 | if (!som_is_space (section) && !som_is_subspace (section)) | |
2336 | continue; | |
6fa957a9 | 2337 | |
252b5132 RH |
2338 | if (som_is_space (section)) |
2339 | { | |
2340 | /* Allocate space for the space dictionary. */ | |
2341 | som_section_data (section)->space_dict | |
2342 | = (struct space_dictionary_record *) | |
2343 | bfd_zalloc (abfd, sizeof (struct space_dictionary_record)); | |
2344 | if (som_section_data (section)->space_dict == NULL) | |
2345 | return false; | |
2346 | /* Set space attributes. Note most attributes of SOM spaces | |
2347 | are set based on the subspaces it contains. */ | |
2348 | som_section_data (section)->space_dict->loader_fix_index = -1; | |
2349 | som_section_data (section)->space_dict->init_pointer_index = -1; | |
2350 | ||
2351 | /* Set more attributes that were stuffed away in private data. */ | |
6fa957a9 | 2352 | som_section_data (section)->space_dict->sort_key = |
252b5132 | 2353 | som_section_data (section)->copy_data->sort_key; |
6fa957a9 | 2354 | som_section_data (section)->space_dict->is_defined = |
252b5132 | 2355 | som_section_data (section)->copy_data->is_defined; |
6fa957a9 | 2356 | som_section_data (section)->space_dict->is_private = |
252b5132 RH |
2357 | som_section_data (section)->copy_data->is_private; |
2358 | som_section_data (section)->space_dict->space_number = | |
2359 | som_section_data (section)->copy_data->space_number; | |
2360 | } | |
2361 | else | |
2362 | { | |
2363 | /* Allocate space for the subspace dictionary. */ | |
2364 | som_section_data (section)->subspace_dict | |
2365 | = (struct subspace_dictionary_record *) | |
2366 | bfd_zalloc (abfd, sizeof (struct subspace_dictionary_record)); | |
2367 | if (som_section_data (section)->subspace_dict == NULL) | |
2368 | return false; | |
2369 | ||
2370 | /* Set subspace attributes. Basic stuff is done here, additional | |
2371 | attributes are filled in later as more information becomes | |
2372 | available. */ | |
2373 | if (section->flags & SEC_IS_COMMON) | |
2374 | { | |
2375 | som_section_data (section)->subspace_dict->dup_common = 1; | |
2376 | som_section_data (section)->subspace_dict->is_common = 1; | |
2377 | } | |
2378 | ||
2379 | if (section->flags & SEC_ALLOC) | |
2380 | som_section_data (section)->subspace_dict->is_loadable = 1; | |
2381 | ||
2382 | if (section->flags & SEC_CODE) | |
2383 | som_section_data (section)->subspace_dict->code_only = 1; | |
2384 | ||
6fa957a9 | 2385 | som_section_data (section)->subspace_dict->subspace_start = |
252b5132 RH |
2386 | section->vma; |
2387 | som_section_data (section)->subspace_dict->subspace_length = | |
2388 | bfd_section_size (abfd, section); | |
2389 | som_section_data (section)->subspace_dict->initialization_length = | |
2390 | bfd_section_size (abfd, section); | |
6fa957a9 | 2391 | som_section_data (section)->subspace_dict->alignment = |
252b5132 RH |
2392 | 1 << section->alignment_power; |
2393 | ||
2394 | /* Set more attributes that were stuffed away in private data. */ | |
2395 | som_section_data (section)->subspace_dict->sort_key = | |
2396 | som_section_data (section)->copy_data->sort_key; | |
2397 | som_section_data (section)->subspace_dict->access_control_bits = | |
2398 | som_section_data (section)->copy_data->access_control_bits; | |
2399 | som_section_data (section)->subspace_dict->quadrant = | |
2400 | som_section_data (section)->copy_data->quadrant; | |
2401 | } | |
2402 | } | |
2403 | return true; | |
2404 | } | |
2405 | ||
2406 | /* Return true if the given section is a SOM space, false otherwise. */ | |
2407 | ||
2408 | static boolean | |
2409 | som_is_space (section) | |
2410 | asection *section; | |
2411 | { | |
2412 | /* If no copy data is available, then it's neither a space nor a | |
2413 | subspace. */ | |
2414 | if (som_section_data (section)->copy_data == NULL) | |
2415 | return false; | |
2416 | ||
2417 | /* If the containing space isn't the same as the given section, | |
2418 | then this isn't a space. */ | |
2419 | if (som_section_data (section)->copy_data->container != section | |
2420 | && (som_section_data (section)->copy_data->container->output_section | |
2421 | != section)) | |
2422 | return false; | |
2423 | ||
2424 | /* OK. Must be a space. */ | |
2425 | return true; | |
2426 | } | |
2427 | ||
2428 | /* Return true if the given section is a SOM subspace, false otherwise. */ | |
2429 | ||
2430 | static boolean | |
2431 | som_is_subspace (section) | |
2432 | asection *section; | |
2433 | { | |
2434 | /* If no copy data is available, then it's neither a space nor a | |
2435 | subspace. */ | |
2436 | if (som_section_data (section)->copy_data == NULL) | |
2437 | return false; | |
2438 | ||
2439 | /* If the containing space is the same as the given section, | |
2440 | then this isn't a subspace. */ | |
2441 | if (som_section_data (section)->copy_data->container == section | |
2442 | || (som_section_data (section)->copy_data->container->output_section | |
2443 | == section)) | |
2444 | return false; | |
2445 | ||
2446 | /* OK. Must be a subspace. */ | |
2447 | return true; | |
2448 | } | |
2449 | ||
2450 | /* Return true if the given space containins the given subspace. It | |
2451 | is safe to assume space really is a space, and subspace really | |
2452 | is a subspace. */ | |
2453 | ||
2454 | static boolean | |
2455 | som_is_container (space, subspace) | |
2456 | asection *space, *subspace; | |
2457 | { | |
2458 | return (som_section_data (subspace)->copy_data->container == space | |
2459 | || (som_section_data (subspace)->copy_data->container->output_section | |
2460 | == space)); | |
2461 | } | |
2462 | ||
2463 | /* Count and return the number of spaces attached to the given BFD. */ | |
2464 | ||
2465 | static unsigned long | |
2466 | som_count_spaces (abfd) | |
2467 | bfd *abfd; | |
2468 | { | |
2469 | int count = 0; | |
2470 | asection *section; | |
2471 | ||
2472 | for (section = abfd->sections; section != NULL; section = section->next) | |
2473 | count += som_is_space (section); | |
2474 | ||
2475 | return count; | |
2476 | } | |
2477 | ||
2478 | /* Count the number of subspaces attached to the given BFD. */ | |
2479 | ||
2480 | static unsigned long | |
2481 | som_count_subspaces (abfd) | |
2482 | bfd *abfd; | |
2483 | { | |
2484 | int count = 0; | |
2485 | asection *section; | |
2486 | ||
2487 | for (section = abfd->sections; section != NULL; section = section->next) | |
2488 | count += som_is_subspace (section); | |
2489 | ||
2490 | return count; | |
2491 | } | |
2492 | ||
2493 | /* Return -1, 0, 1 indicating the relative ordering of sym1 and sym2. | |
2494 | ||
2495 | We desire symbols to be ordered starting with the symbol with the | |
2496 | highest relocation count down to the symbol with the lowest relocation | |
2497 | count. Doing so compacts the relocation stream. */ | |
2498 | ||
2499 | static int | |
2500 | compare_syms (arg1, arg2) | |
2501 | const PTR arg1; | |
2502 | const PTR arg2; | |
2503 | ||
2504 | { | |
2505 | asymbol **sym1 = (asymbol **) arg1; | |
2506 | asymbol **sym2 = (asymbol **) arg2; | |
2507 | unsigned int count1, count2; | |
6fa957a9 | 2508 | |
252b5132 RH |
2509 | /* Get relocation count for each symbol. Note that the count |
2510 | is stored in the udata pointer for section symbols! */ | |
2511 | if ((*sym1)->flags & BSF_SECTION_SYM) | |
2512 | count1 = (*sym1)->udata.i; | |
2513 | else | |
2514 | count1 = som_symbol_data (*sym1)->reloc_count; | |
2515 | ||
2516 | if ((*sym2)->flags & BSF_SECTION_SYM) | |
2517 | count2 = (*sym2)->udata.i; | |
2518 | else | |
2519 | count2 = som_symbol_data (*sym2)->reloc_count; | |
2520 | ||
2521 | /* Return the appropriate value. */ | |
2522 | if (count1 < count2) | |
2523 | return 1; | |
2524 | else if (count1 > count2) | |
2525 | return -1; | |
2526 | return 0; | |
2527 | } | |
2528 | ||
2529 | /* Return -1, 0, 1 indicating the relative ordering of subspace1 | |
2530 | and subspace. */ | |
2531 | ||
2532 | static int | |
2533 | compare_subspaces (arg1, arg2) | |
2534 | const PTR arg1; | |
2535 | const PTR arg2; | |
2536 | ||
2537 | { | |
2538 | asection **subspace1 = (asection **) arg1; | |
2539 | asection **subspace2 = (asection **) arg2; | |
6fa957a9 | 2540 | |
252b5132 RH |
2541 | if ((*subspace1)->target_index < (*subspace2)->target_index) |
2542 | return -1; | |
2543 | else if ((*subspace2)->target_index < (*subspace1)->target_index) | |
2544 | return 1; | |
2545 | else | |
2546 | return 0; | |
2547 | } | |
2548 | ||
2549 | /* Perform various work in preparation for emitting the fixup stream. */ | |
2550 | ||
2551 | static void | |
2552 | som_prep_for_fixups (abfd, syms, num_syms) | |
2553 | bfd *abfd; | |
2554 | asymbol **syms; | |
2555 | unsigned long num_syms; | |
2556 | { | |
2557 | int i; | |
2558 | asection *section; | |
2559 | asymbol **sorted_syms; | |
2560 | ||
2561 | /* Most SOM relocations involving a symbol have a length which is | |
2562 | dependent on the index of the symbol. So symbols which are | |
2563 | used often in relocations should have a small index. */ | |
2564 | ||
2565 | /* First initialize the counters for each symbol. */ | |
2566 | for (i = 0; i < num_syms; i++) | |
2567 | { | |
2568 | /* Handle a section symbol; these have no pointers back to the | |
2569 | SOM symbol info. So we just use the udata field to hold the | |
2570 | relocation count. */ | |
2571 | if (som_symbol_data (syms[i]) == NULL | |
2572 | || syms[i]->flags & BSF_SECTION_SYM) | |
2573 | { | |
2574 | syms[i]->flags |= BSF_SECTION_SYM; | |
2575 | syms[i]->udata.i = 0; | |
2576 | } | |
2577 | else | |
2578 | som_symbol_data (syms[i])->reloc_count = 0; | |
2579 | } | |
2580 | ||
2581 | /* Now that the counters are initialized, make a weighted count | |
2582 | of how often a given symbol is used in a relocation. */ | |
2583 | for (section = abfd->sections; section != NULL; section = section->next) | |
2584 | { | |
2585 | int i; | |
2586 | ||
2587 | /* Does this section have any relocations? */ | |
2588 | if (section->reloc_count <= 0) | |
2589 | continue; | |
2590 | ||
2591 | /* Walk through each relocation for this section. */ | |
2592 | for (i = 1; i < section->reloc_count; i++) | |
2593 | { | |
2594 | arelent *reloc = section->orelocation[i]; | |
2595 | int scale; | |
2596 | ||
2597 | /* A relocation against a symbol in the *ABS* section really | |
2598 | does not have a symbol. Likewise if the symbol isn't associated | |
2599 | with any section. */ | |
2600 | if (reloc->sym_ptr_ptr == NULL | |
2601 | || bfd_is_abs_section ((*reloc->sym_ptr_ptr)->section)) | |
2602 | continue; | |
2603 | ||
6fa957a9 | 2604 | /* Scaling to encourage symbols involved in R_DP_RELATIVE |
252b5132 RH |
2605 | and R_CODE_ONE_SYMBOL relocations to come first. These |
2606 | two relocations have single byte versions if the symbol | |
2607 | index is very small. */ | |
2608 | if (reloc->howto->type == R_DP_RELATIVE | |
2609 | || reloc->howto->type == R_CODE_ONE_SYMBOL) | |
2610 | scale = 2; | |
2611 | else | |
2612 | scale = 1; | |
2613 | ||
2614 | /* Handle section symbols by storing the count in the udata | |
2615 | field. It will not be used and the count is very important | |
2616 | for these symbols. */ | |
2617 | if ((*reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM) | |
2618 | { | |
2619 | (*reloc->sym_ptr_ptr)->udata.i = | |
2620 | (*reloc->sym_ptr_ptr)->udata.i + scale; | |
2621 | continue; | |
2622 | } | |
2623 | ||
2624 | /* A normal symbol. Increment the count. */ | |
2625 | som_symbol_data (*reloc->sym_ptr_ptr)->reloc_count += scale; | |
2626 | } | |
2627 | } | |
2628 | ||
2629 | /* Sort a copy of the symbol table, rather than the canonical | |
2630 | output symbol table. */ | |
2631 | sorted_syms = (asymbol **) bfd_zalloc (abfd, num_syms * sizeof (asymbol *)); | |
2632 | memcpy (sorted_syms, syms, num_syms * sizeof (asymbol *)); | |
2633 | qsort (sorted_syms, num_syms, sizeof (asymbol *), compare_syms); | |
2634 | obj_som_sorted_syms (abfd) = sorted_syms; | |
2635 | ||
2636 | /* Compute the symbol indexes, they will be needed by the relocation | |
2637 | code. */ | |
2638 | for (i = 0; i < num_syms; i++) | |
2639 | { | |
2640 | /* A section symbol. Again, there is no pointer to backend symbol | |
2641 | information, so we reuse the udata field again. */ | |
2642 | if (sorted_syms[i]->flags & BSF_SECTION_SYM) | |
2643 | sorted_syms[i]->udata.i = i; | |
2644 | else | |
2645 | som_symbol_data (sorted_syms[i])->index = i; | |
2646 | } | |
2647 | } | |
2648 | ||
2649 | static boolean | |
2650 | som_write_fixups (abfd, current_offset, total_reloc_sizep) | |
2651 | bfd *abfd; | |
2652 | unsigned long current_offset; | |
2653 | unsigned int *total_reloc_sizep; | |
2654 | { | |
2655 | unsigned int i, j; | |
2656 | /* Chunk of memory that we can use as buffer space, then throw | |
2657 | away. */ | |
2658 | unsigned char tmp_space[SOM_TMP_BUFSIZE]; | |
2659 | unsigned char *p; | |
2660 | unsigned int total_reloc_size = 0; | |
2661 | unsigned int subspace_reloc_size = 0; | |
2662 | unsigned int num_spaces = obj_som_file_hdr (abfd)->space_total; | |
2663 | asection *section = abfd->sections; | |
2664 | ||
2665 | memset (tmp_space, 0, SOM_TMP_BUFSIZE); | |
2666 | p = tmp_space; | |
2667 | ||
2668 | /* All the fixups for a particular subspace are emitted in a single | |
2669 | stream. All the subspaces for a particular space are emitted | |
2670 | as a single stream. | |
2671 | ||
2672 | So, to get all the locations correct one must iterate through all the | |
2673 | spaces, for each space iterate through its subspaces and output a | |
2674 | fixups stream. */ | |
2675 | for (i = 0; i < num_spaces; i++) | |
2676 | { | |
2677 | asection *subsection; | |
2678 | ||
2679 | /* Find a space. */ | |
2680 | while (!som_is_space (section)) | |
2681 | section = section->next; | |
2682 | ||
2683 | /* Now iterate through each of its subspaces. */ | |
2684 | for (subsection = abfd->sections; | |
2685 | subsection != NULL; | |
2686 | subsection = subsection->next) | |
2687 | { | |
2688 | int reloc_offset, current_rounding_mode; | |
2667095f JL |
2689 | #ifndef NO_PCREL_MODES |
2690 | int current_call_mode; | |
2691 | #endif | |
252b5132 RH |
2692 | |
2693 | /* Find a subspace of this space. */ | |
2694 | if (!som_is_subspace (subsection) | |
2695 | || !som_is_container (section, subsection)) | |
2696 | continue; | |
2697 | ||
2698 | /* If this subspace does not have real data, then we are | |
2699 | finised with it. */ | |
2700 | if ((subsection->flags & SEC_HAS_CONTENTS) == 0) | |
2701 | { | |
2702 | som_section_data (subsection)->subspace_dict->fixup_request_index | |
2703 | = -1; | |
2704 | continue; | |
2705 | } | |
2706 | ||
2707 | /* This subspace has some relocations. Put the relocation stream | |
2708 | index into the subspace record. */ | |
2709 | som_section_data (subsection)->subspace_dict->fixup_request_index | |
2710 | = total_reloc_size; | |
2711 | ||
6fa957a9 | 2712 | /* To make life easier start over with a clean slate for |
252b5132 RH |
2713 | each subspace. Seek to the start of the relocation stream |
2714 | for this subspace in preparation for writing out its fixup | |
2715 | stream. */ | |
2716 | if (bfd_seek (abfd, current_offset + total_reloc_size, SEEK_SET) < 0) | |
2717 | return false; | |
2718 | ||
2719 | /* Buffer space has already been allocated. Just perform some | |
2720 | initialization here. */ | |
2721 | p = tmp_space; | |
2722 | subspace_reloc_size = 0; | |
2723 | reloc_offset = 0; | |
2724 | som_initialize_reloc_queue (reloc_queue); | |
2725 | current_rounding_mode = R_N_MODE; | |
2667095f JL |
2726 | #ifndef NO_PCREL_MODES |
2727 | current_call_mode = R_SHORT_PCREL_MODE; | |
2728 | #endif | |
252b5132 | 2729 | |
6fa957a9 | 2730 | /* Translate each BFD relocation into one or more SOM |
252b5132 RH |
2731 | relocations. */ |
2732 | for (j = 0; j < subsection->reloc_count; j++) | |
2733 | { | |
2734 | arelent *bfd_reloc = subsection->orelocation[j]; | |
2735 | unsigned int skip; | |
2736 | int sym_num; | |
2737 | ||
6fa957a9 | 2738 | /* Get the symbol number. Remember it's stored in a |
252b5132 RH |
2739 | special place for section symbols. */ |
2740 | if ((*bfd_reloc->sym_ptr_ptr)->flags & BSF_SECTION_SYM) | |
2741 | sym_num = (*bfd_reloc->sym_ptr_ptr)->udata.i; | |
2742 | else | |
2743 | sym_num = som_symbol_data (*bfd_reloc->sym_ptr_ptr)->index; | |
6fa957a9 | 2744 | |
252b5132 RH |
2745 | /* If there is not enough room for the next couple relocations, |
2746 | then dump the current buffer contents now. Also reinitialize | |
6fa957a9 | 2747 | the relocation queue. |
252b5132 RH |
2748 | |
2749 | No single BFD relocation could ever translate into more | |
2750 | than 100 bytes of SOM relocations (20bytes is probably the | |
2751 | upper limit, but leave lots of space for growth). */ | |
2752 | if (p - tmp_space + 100 > SOM_TMP_BUFSIZE) | |
2753 | { | |
2754 | if (bfd_write ((PTR) tmp_space, p - tmp_space, 1, abfd) | |
2755 | != p - tmp_space) | |
2756 | return false; | |
2757 | ||
2758 | p = tmp_space; | |
2759 | som_initialize_reloc_queue (reloc_queue); | |
2760 | } | |
2761 | ||
2762 | /* Emit R_NO_RELOCATION fixups to map any bytes which were | |
2763 | skipped. */ | |
2764 | skip = bfd_reloc->address - reloc_offset; | |
2765 | p = som_reloc_skip (abfd, skip, p, | |
2766 | &subspace_reloc_size, reloc_queue); | |
2767 | ||
2768 | /* Update reloc_offset for the next iteration. | |
2769 | ||
2770 | Many relocations do not consume input bytes. They | |
2771 | are markers, or set state necessary to perform some | |
2772 | later relocation. */ | |
2773 | switch (bfd_reloc->howto->type) | |
2774 | { | |
2775 | case R_ENTRY: | |
2776 | case R_ALT_ENTRY: | |
2777 | case R_EXIT: | |
2778 | case R_N_MODE: | |
2779 | case R_S_MODE: | |
2780 | case R_D_MODE: | |
2781 | case R_R_MODE: | |
2782 | case R_FSEL: | |
2783 | case R_LSEL: | |
2784 | case R_RSEL: | |
2785 | case R_COMP1: | |
2786 | case R_COMP2: | |
2787 | case R_BEGIN_BRTAB: | |
2788 | case R_END_BRTAB: | |
2789 | case R_BEGIN_TRY: | |
2790 | case R_END_TRY: | |
2791 | case R_N0SEL: | |
2792 | case R_N1SEL: | |
2667095f JL |
2793 | #ifndef NO_PCREL_MODES |
2794 | case R_SHORT_PCREL_MODE: | |
2795 | case R_LONG_PCREL_MODE: | |
2796 | #endif | |
252b5132 RH |
2797 | reloc_offset = bfd_reloc->address; |
2798 | break; | |
2799 | ||
2800 | default: | |
2801 | reloc_offset = bfd_reloc->address + 4; | |
2802 | break; | |
2803 | } | |
2804 | ||
2805 | /* Now the actual relocation we care about. */ | |
2806 | switch (bfd_reloc->howto->type) | |
2807 | { | |
2808 | case R_PCREL_CALL: | |
2809 | case R_ABS_CALL: | |
2810 | p = som_reloc_call (abfd, p, &subspace_reloc_size, | |
2811 | bfd_reloc, sym_num, reloc_queue); | |
2812 | break; | |
2813 | ||
2814 | case R_CODE_ONE_SYMBOL: | |
2815 | case R_DP_RELATIVE: | |
2816 | /* Account for any addend. */ | |
2817 | if (bfd_reloc->addend) | |
6fa957a9 | 2818 | p = som_reloc_addend (abfd, bfd_reloc->addend, p, |
252b5132 RH |
2819 | &subspace_reloc_size, reloc_queue); |
2820 | ||
2821 | if (sym_num < 0x20) | |
2822 | { | |
2823 | bfd_put_8 (abfd, bfd_reloc->howto->type + sym_num, p); | |
2824 | subspace_reloc_size += 1; | |
2825 | p += 1; | |
2826 | } | |
2827 | else if (sym_num < 0x100) | |
2828 | { | |
2829 | bfd_put_8 (abfd, bfd_reloc->howto->type + 32, p); | |
2830 | bfd_put_8 (abfd, sym_num, p + 1); | |
2831 | p = try_prev_fixup (abfd, &subspace_reloc_size, p, | |
2832 | 2, reloc_queue); | |
2833 | } | |
2834 | else if (sym_num < 0x10000000) | |
2835 | { | |
2836 | bfd_put_8 (abfd, bfd_reloc->howto->type + 33, p); | |
2837 | bfd_put_8 (abfd, sym_num >> 16, p + 1); | |
6fa957a9 | 2838 | bfd_put_16 (abfd, sym_num, p + 2); |
252b5132 RH |
2839 | p = try_prev_fixup (abfd, &subspace_reloc_size, |
2840 | p, 4, reloc_queue); | |
2841 | } | |
2842 | else | |
2843 | abort (); | |
2844 | break; | |
2845 | ||
2846 | case R_DATA_ONE_SYMBOL: | |
2847 | case R_DATA_PLABEL: | |
2848 | case R_CODE_PLABEL: | |
2849 | case R_DLT_REL: | |
2850 | /* Account for any addend using R_DATA_OVERRIDE. */ | |
2851 | if (bfd_reloc->howto->type != R_DATA_ONE_SYMBOL | |
2852 | && bfd_reloc->addend) | |
6fa957a9 | 2853 | p = som_reloc_addend (abfd, bfd_reloc->addend, p, |
252b5132 RH |
2854 | &subspace_reloc_size, reloc_queue); |
2855 | ||
2856 | if (sym_num < 0x100) | |
2857 | { | |
2858 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2859 | bfd_put_8 (abfd, sym_num, p + 1); | |
2860 | p = try_prev_fixup (abfd, &subspace_reloc_size, p, | |
2861 | 2, reloc_queue); | |
2862 | } | |
2863 | else if (sym_num < 0x10000000) | |
2864 | { | |
2865 | bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p); | |
2866 | bfd_put_8 (abfd, sym_num >> 16, p + 1); | |
6fa957a9 | 2867 | bfd_put_16 (abfd, sym_num, p + 2); |
252b5132 RH |
2868 | p = try_prev_fixup (abfd, &subspace_reloc_size, |
2869 | p, 4, reloc_queue); | |
2870 | } | |
2871 | else | |
2872 | abort (); | |
2873 | break; | |
2874 | ||
2875 | case R_ENTRY: | |
2876 | { | |
2877 | int tmp; | |
2878 | arelent *tmp_reloc = NULL; | |
2879 | bfd_put_8 (abfd, R_ENTRY, p); | |
2880 | ||
2881 | /* R_ENTRY relocations have 64 bits of associated | |
2882 | data. Unfortunately the addend field of a bfd | |
2883 | relocation is only 32 bits. So, we split up | |
2884 | the 64bit unwind information and store part in | |
2885 | the R_ENTRY relocation, and the rest in the R_EXIT | |
2886 | relocation. */ | |
2887 | bfd_put_32 (abfd, bfd_reloc->addend, p + 1); | |
6fa957a9 | 2888 | |
252b5132 RH |
2889 | /* Find the next R_EXIT relocation. */ |
2890 | for (tmp = j; tmp < subsection->reloc_count; tmp++) | |
2891 | { | |
2892 | tmp_reloc = subsection->orelocation[tmp]; | |
2893 | if (tmp_reloc->howto->type == R_EXIT) | |
2894 | break; | |
2895 | } | |
2896 | ||
2897 | if (tmp == subsection->reloc_count) | |
2898 | abort (); | |
2899 | ||
2900 | bfd_put_32 (abfd, tmp_reloc->addend, p + 5); | |
2901 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
2902 | p, 9, reloc_queue); | |
2903 | break; | |
2904 | } | |
6fa957a9 | 2905 | |
252b5132 RH |
2906 | case R_N_MODE: |
2907 | case R_S_MODE: | |
2908 | case R_D_MODE: | |
2909 | case R_R_MODE: | |
2910 | /* If this relocation requests the current rounding | |
2911 | mode, then it is redundant. */ | |
2912 | if (bfd_reloc->howto->type != current_rounding_mode) | |
2913 | { | |
2914 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2915 | subspace_reloc_size += 1; | |
2916 | p += 1; | |
2917 | current_rounding_mode = bfd_reloc->howto->type; | |
2918 | } | |
2919 | break; | |
2920 | ||
2667095f JL |
2921 | #ifndef NO_PCREL_MODES |
2922 | case R_LONG_PCREL_MODE: | |
2923 | case R_SHORT_PCREL_MODE: | |
2924 | if (bfd_reloc->howto->type != current_call_mode) | |
2925 | { | |
2926 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2927 | subspace_reloc_size += 1; | |
2928 | p += 1; | |
2929 | current_call_mode = bfd_reloc->howto->type; | |
2930 | } | |
2931 | break; | |
2932 | #endif | |
2933 | ||
252b5132 RH |
2934 | case R_EXIT: |
2935 | case R_ALT_ENTRY: | |
2936 | case R_FSEL: | |
2937 | case R_LSEL: | |
2938 | case R_RSEL: | |
2939 | case R_BEGIN_BRTAB: | |
2940 | case R_END_BRTAB: | |
2941 | case R_BEGIN_TRY: | |
2942 | case R_N0SEL: | |
2943 | case R_N1SEL: | |
2944 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2945 | subspace_reloc_size += 1; | |
2946 | p += 1; | |
2947 | break; | |
2948 | ||
2949 | case R_END_TRY: | |
2950 | /* The end of a exception handling region. The reloc's | |
2951 | addend contains the offset of the exception handling | |
2952 | code. */ | |
2953 | if (bfd_reloc->addend == 0) | |
2954 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2955 | else if (bfd_reloc->addend < 1024) | |
2956 | { | |
2957 | bfd_put_8 (abfd, bfd_reloc->howto->type + 1, p); | |
2958 | bfd_put_8 (abfd, bfd_reloc->addend / 4, p + 1); | |
2959 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
2960 | p, 2, reloc_queue); | |
2961 | } | |
2962 | else | |
2963 | { | |
2964 | bfd_put_8 (abfd, bfd_reloc->howto->type + 2, p); | |
2965 | bfd_put_8 (abfd, (bfd_reloc->addend / 4) >> 16, p + 1); | |
2966 | bfd_put_16 (abfd, bfd_reloc->addend / 4, p + 2); | |
2967 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
2968 | p, 4, reloc_queue); | |
2969 | } | |
2970 | break; | |
6fa957a9 | 2971 | |
252b5132 | 2972 | case R_COMP1: |
6fa957a9 | 2973 | /* The only time we generate R_COMP1, R_COMP2 and |
252b5132 RH |
2974 | R_CODE_EXPR relocs is for the difference of two |
2975 | symbols. Hence we can cheat here. */ | |
2976 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2977 | bfd_put_8 (abfd, 0x44, p + 1); | |
2978 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
2979 | p, 2, reloc_queue); | |
2980 | break; | |
2981 | ||
2982 | case R_COMP2: | |
6fa957a9 | 2983 | /* The only time we generate R_COMP1, R_COMP2 and |
252b5132 RH |
2984 | R_CODE_EXPR relocs is for the difference of two |
2985 | symbols. Hence we can cheat here. */ | |
2986 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
2987 | bfd_put_8 (abfd, 0x80, p + 1); | |
2988 | bfd_put_8 (abfd, sym_num >> 16, p + 2); | |
2989 | bfd_put_16 (abfd, sym_num, p + 3); | |
2990 | p = try_prev_fixup (abfd, &subspace_reloc_size, | |
2991 | p, 5, reloc_queue); | |
2992 | break; | |
2993 | ||
2994 | case R_CODE_EXPR: | |
2995 | case R_DATA_EXPR: | |
6fa957a9 | 2996 | /* The only time we generate R_COMP1, R_COMP2 and |
252b5132 RH |
2997 | R_CODE_EXPR relocs is for the difference of two |
2998 | symbols. Hence we can cheat here. */ | |
2999 | bfd_put_8 (abfd, bfd_reloc->howto->type, p); | |
3000 | subspace_reloc_size += 1; | |
3001 | p += 1; | |
3002 | break; | |
3003 | ||
3004 | /* Put a "R_RESERVED" relocation in the stream if | |
3005 | we hit something we do not understand. The linker | |
3006 | will complain loudly if this ever happens. */ | |
3007 | default: | |
3008 | bfd_put_8 (abfd, 0xff, p); | |
3009 | subspace_reloc_size += 1; | |
3010 | p += 1; | |
3011 | break; | |
3012 | } | |
3013 | } | |
3014 | ||
3015 | /* Last BFD relocation for a subspace has been processed. | |
3016 | Map the rest of the subspace with R_NO_RELOCATION fixups. */ | |
6fa957a9 | 3017 | p = som_reloc_skip (abfd, bfd_section_size (abfd, subsection) |
252b5132 RH |
3018 | - reloc_offset, |
3019 | p, &subspace_reloc_size, reloc_queue); | |
3020 | ||
3021 | /* Scribble out the relocations. */ | |
3022 | if (bfd_write ((PTR) tmp_space, p - tmp_space, 1, abfd) | |
3023 | != p - tmp_space) | |
3024 | return false; | |
3025 | p = tmp_space; | |
3026 | ||
3027 | total_reloc_size += subspace_reloc_size; | |
3028 | som_section_data (subsection)->subspace_dict->fixup_request_quantity | |
3029 | = subspace_reloc_size; | |
3030 | } | |
3031 | section = section->next; | |
3032 | } | |
3033 | *total_reloc_sizep = total_reloc_size; | |
3034 | return true; | |
3035 | } | |
3036 | ||
3037 | /* Write out the space/subspace string table. */ | |
3038 | ||
3039 | static boolean | |
3040 | som_write_space_strings (abfd, current_offset, string_sizep) | |
3041 | bfd *abfd; | |
3042 | unsigned long current_offset; | |
3043 | unsigned int *string_sizep; | |
3044 | { | |
3045 | /* Chunk of memory that we can use as buffer space, then throw | |
3046 | away. */ | |
8681fbcd JL |
3047 | size_t tmp_space_size = SOM_TMP_BUFSIZE; |
3048 | unsigned char *tmp_space = alloca (tmp_space_size); | |
3049 | unsigned char *p = tmp_space; | |
252b5132 RH |
3050 | unsigned int strings_size = 0; |
3051 | asection *section; | |
3052 | ||
252b5132 RH |
3053 | /* Seek to the start of the space strings in preparation for writing |
3054 | them out. */ | |
3055 | if (bfd_seek (abfd, current_offset, SEEK_SET) < 0) | |
3056 | return false; | |
3057 | ||
3058 | /* Walk through all the spaces and subspaces (order is not important) | |
3059 | building up and writing string table entries for their names. */ | |
3060 | for (section = abfd->sections; section != NULL; section = section->next) | |
3061 | { | |
8681fbcd | 3062 | size_t length; |
252b5132 RH |
3063 | |
3064 | /* Only work with space/subspaces; avoid any other sections | |
3065 | which might have been made (.text for example). */ | |
3066 | if (!som_is_space (section) && !som_is_subspace (section)) | |
3067 | continue; | |
3068 | ||
3069 | /* Get the length of the space/subspace name. */ | |
3070 | length = strlen (section->name); | |
3071 | ||
3072 | /* If there is not enough room for the next entry, then dump the | |
8681fbcd JL |
3073 | current buffer contents now and maybe allocate a larger |
3074 | buffer. Each entry will take 4 bytes to hold the string | |
3075 | length + the string itself + null terminator. */ | |
3076 | if (p - tmp_space + 5 + length > tmp_space_size) | |
252b5132 | 3077 | { |
8681fbcd | 3078 | /* Flush buffer before refilling or reallocating. */ |
252b5132 | 3079 | if (bfd_write ((PTR) &tmp_space[0], p - tmp_space, 1, abfd) |
6fa957a9 | 3080 | != p - tmp_space) |
252b5132 | 3081 | return false; |
8681fbcd JL |
3082 | |
3083 | /* Reallocate if now empty buffer still too small. */ | |
3084 | if (5 + length > tmp_space_size) | |
3085 | { | |
3086 | /* Ensure a minimum growth factor to avoid O(n**2) space | |
3087 | consumption for n strings. The optimal minimum | |
3088 | factor seems to be 2, as no other value can guarantee | |
3089 | wasting less then 50% space. (Note that we cannot | |
3090 | deallocate space allocated by `alloca' without | |
3091 | returning from this function.) The same technique is | |
3092 | used a few more times below when a buffer is | |
3093 | reallocated. */ | |
3094 | tmp_space_size = MAX (2 * tmp_space_size, 5 + length); | |
3095 | tmp_space = alloca (tmp_space_size); | |
3096 | } | |
3097 | ||
3098 | /* Reset to beginning of the (possibly new) buffer space. */ | |
252b5132 RH |
3099 | p = tmp_space; |
3100 | } | |
3101 | ||
3102 | /* First element in a string table entry is the length of the | |
3103 | string. Alignment issues are already handled. */ | |
3104 | bfd_put_32 (abfd, length, p); | |
3105 | p += 4; | |
3106 | strings_size += 4; | |
3107 | ||
3108 | /* Record the index in the space/subspace records. */ | |
3109 | if (som_is_space (section)) | |
3110 | som_section_data (section)->space_dict->name.n_strx = strings_size; | |
3111 | else | |
3112 | som_section_data (section)->subspace_dict->name.n_strx = strings_size; | |
3113 | ||
3114 | /* Next comes the string itself + a null terminator. */ | |
3115 | strcpy (p, section->name); | |
3116 | p += length + 1; | |
3117 | strings_size += length + 1; | |
3118 | ||
3119 | /* Always align up to the next word boundary. */ | |
3120 | while (strings_size % 4) | |
3121 | { | |
3122 | bfd_put_8 (abfd, 0, p); | |
3123 | p++; | |
3124 | strings_size++; | |
3125 | } | |
3126 | } | |
3127 | ||
3128 | /* Done with the space/subspace strings. Write out any information | |
3129 | contained in a partial block. */ | |
3130 | if (bfd_write ((PTR) &tmp_space[0], p - tmp_space, 1, abfd) != p - tmp_space) | |
3131 | return false; | |
3132 | *string_sizep = strings_size; | |
3133 | return true; | |
3134 | } | |
3135 | ||
3136 | /* Write out the symbol string table. */ | |
3137 | ||
3138 | static boolean | |
3139 | som_write_symbol_strings (abfd, current_offset, syms, num_syms, string_sizep, | |
3140 | compilation_unit) | |
3141 | bfd *abfd; | |
3142 | unsigned long current_offset; | |
3143 | asymbol **syms; | |
3144 | unsigned int num_syms; | |
3145 | unsigned int *string_sizep; | |
3146 | COMPUNIT *compilation_unit; | |
3147 | { | |
3148 | unsigned int i; | |
6fa957a9 | 3149 | |
252b5132 RH |
3150 | /* Chunk of memory that we can use as buffer space, then throw |
3151 | away. */ | |
8681fbcd JL |
3152 | size_t tmp_space_size = SOM_TMP_BUFSIZE; |
3153 | unsigned char *tmp_space = alloca (tmp_space_size); | |
3154 | unsigned char *p = tmp_space; | |
3155 | ||
252b5132 RH |
3156 | unsigned int strings_size = 0; |
3157 | unsigned char *comp[4]; | |
3158 | ||
3159 | /* This gets a bit gruesome because of the compilation unit. The | |
3160 | strings within the compilation unit are part of the symbol | |
3161 | strings, but don't have symbol_dictionary entries. So, manually | |
3162 | write them and update the compliation unit header. On input, the | |
3163 | compilation unit header contains local copies of the strings. | |
3164 | Move them aside. */ | |
3165 | if (compilation_unit) | |
3166 | { | |
3167 | comp[0] = compilation_unit->name.n_name; | |
3168 | comp[1] = compilation_unit->language_name.n_name; | |
3169 | comp[2] = compilation_unit->product_id.n_name; | |
3170 | comp[3] = compilation_unit->version_id.n_name; | |
3171 | } | |
3172 | ||
252b5132 RH |
3173 | /* Seek to the start of the space strings in preparation for writing |
3174 | them out. */ | |
3175 | if (bfd_seek (abfd, current_offset, SEEK_SET) < 0) | |
3176 | return false; | |
3177 | ||
3178 | if (compilation_unit) | |
3179 | { | |
3180 | for (i = 0; i < 4; i++) | |
3181 | { | |
8681fbcd | 3182 | size_t length = strlen (comp[i]); |
252b5132 RH |
3183 | |
3184 | /* If there is not enough room for the next entry, then dump | |
8681fbcd JL |
3185 | the current buffer contents now and maybe allocate a |
3186 | larger buffer. */ | |
3187 | if (p - tmp_space + 5 + length > tmp_space_size) | |
252b5132 | 3188 | { |
6fa957a9 | 3189 | /* Flush buffer before refilling or reallocating. */ |
252b5132 RH |
3190 | if (bfd_write ((PTR) &tmp_space[0], p - tmp_space, 1, abfd) |
3191 | != p - tmp_space) | |
3192 | return false; | |
8681fbcd JL |
3193 | |
3194 | /* Reallocate if now empty buffer still too small. */ | |
3195 | if (5 + length > tmp_space_size) | |
3196 | { | |
3197 | /* See alloca above for discussion of new size. */ | |
3198 | tmp_space_size = MAX (2 * tmp_space_size, 5 + length); | |
3199 | tmp_space = alloca (tmp_space_size); | |
3200 | } | |
3201 | ||
3202 | /* Reset to beginning of the (possibly new) buffer | |
3203 | space. */ | |
252b5132 RH |
3204 | p = tmp_space; |
3205 | } | |
3206 | ||
3207 | /* First element in a string table entry is the length of | |
3208 | the string. This must always be 4 byte aligned. This is | |
3209 | also an appropriate time to fill in the string index | |
3210 | field in the symbol table entry. */ | |
3211 | bfd_put_32 (abfd, length, p); | |
3212 | strings_size += 4; | |
3213 | p += 4; | |
3214 | ||
3215 | /* Next comes the string itself + a null terminator. */ | |
3216 | strcpy (p, comp[i]); | |
3217 | ||
3218 | switch (i) | |
3219 | { | |
6fa957a9 | 3220 | case 0: |
252b5132 RH |
3221 | obj_som_compilation_unit (abfd)->name.n_strx = strings_size; |
3222 | break; | |
3223 | case 1: | |
6fa957a9 | 3224 | obj_som_compilation_unit (abfd)->language_name.n_strx = |
252b5132 RH |
3225 | strings_size; |
3226 | break; | |
3227 | case 2: | |
6fa957a9 | 3228 | obj_som_compilation_unit (abfd)->product_id.n_strx = |
252b5132 RH |
3229 | strings_size; |
3230 | break; | |
3231 | case 3: | |
6fa957a9 | 3232 | obj_som_compilation_unit (abfd)->version_id.n_strx = |
252b5132 RH |
3233 | strings_size; |
3234 | break; | |
3235 | } | |
3236 | ||
3237 | p += length + 1; | |
3238 | strings_size += length + 1; | |
3239 | ||
3240 | /* Always align up to the next word boundary. */ | |
3241 | while (strings_size % 4) | |
3242 | { | |
3243 | bfd_put_8 (abfd, 0, p); | |
3244 | strings_size++; | |
3245 | p++; | |
3246 | } | |
3247 | } | |
3248 | } | |
3249 | ||
3250 | for (i = 0; i < num_syms; i++) | |
3251 | { | |
8681fbcd | 3252 | size_t length = strlen (syms[i]->name); |
252b5132 RH |
3253 | |
3254 | /* If there is not enough room for the next entry, then dump the | |
8681fbcd JL |
3255 | current buffer contents now and maybe allocate a larger buffer. */ |
3256 | if (p - tmp_space + 5 + length > tmp_space_size) | |
252b5132 | 3257 | { |
6fa957a9 | 3258 | /* Flush buffer before refilling or reallocating. */ |
252b5132 RH |
3259 | if (bfd_write ((PTR) &tmp_space[0], p - tmp_space, 1, abfd) |
3260 | != p - tmp_space) | |
3261 | return false; | |
8681fbcd JL |
3262 | |
3263 | /* Reallocate if now empty buffer still too small. */ | |
3264 | if (5 + length > tmp_space_size) | |
3265 | { | |
3266 | /* See alloca above for discussion of new size. */ | |
3267 | tmp_space_size = MAX (2 * tmp_space_size, 5 + length); | |
3268 | tmp_space = alloca (tmp_space_size); | |
3269 | } | |
3270 | ||
3271 | /* Reset to beginning of the (possibly new) buffer space. */ | |
252b5132 RH |
3272 | p = tmp_space; |
3273 | } | |
3274 | ||
3275 | /* First element in a string table entry is the length of the | |
3276 | string. This must always be 4 byte aligned. This is also | |
3277 | an appropriate time to fill in the string index field in the | |
3278 | symbol table entry. */ | |
3279 | bfd_put_32 (abfd, length, p); | |
3280 | strings_size += 4; | |
3281 | p += 4; | |
3282 | ||
3283 | /* Next comes the string itself + a null terminator. */ | |
3284 | strcpy (p, syms[i]->name); | |
3285 | ||
3286 | som_symbol_data(syms[i])->stringtab_offset = strings_size; | |
3287 | p += length + 1; | |
3288 | strings_size += length + 1; | |
3289 | ||
3290 | /* Always align up to the next word boundary. */ | |
3291 | while (strings_size % 4) | |
3292 | { | |
3293 | bfd_put_8 (abfd, 0, p); | |
3294 | strings_size++; | |
3295 | p++; | |
3296 | } | |
3297 | } | |
3298 | ||
3299 | /* Scribble out any partial block. */ | |
3300 | if (bfd_write ((PTR) &tmp_space[0], p - tmp_space, 1, abfd) != p - tmp_space) | |
3301 | return false; | |
3302 | ||
3303 | *string_sizep = strings_size; | |
3304 | return true; | |
3305 | } | |
3306 | ||
6fa957a9 | 3307 | /* Compute variable information to be placed in the SOM headers, |
252b5132 RH |
3308 | space/subspace dictionaries, relocation streams, etc. Begin |
3309 | writing parts of the object file. */ | |
3310 | ||
6fa957a9 | 3311 | static boolean |
252b5132 RH |
3312 | som_begin_writing (abfd) |
3313 | bfd *abfd; | |
3314 | { | |
3315 | unsigned long current_offset = 0; | |
3316 | int strings_size = 0; | |
252b5132 RH |
3317 | unsigned long num_spaces, num_subspaces, i; |
3318 | asection *section; | |
3319 | unsigned int total_subspaces = 0; | |
3320 | struct som_exec_auxhdr *exec_header = NULL; | |
3321 | ||
6fa957a9 | 3322 | /* The file header will always be first in an object file, |
252b5132 RH |
3323 | everything else can be in random locations. To keep things |
3324 | "simple" BFD will lay out the object file in the manner suggested | |
3325 | by the PRO ABI for PA-RISC Systems. */ | |
3326 | ||
3327 | /* Before any output can really begin offsets for all the major | |
3328 | portions of the object file must be computed. So, starting | |
3329 | with the initial file header compute (and sometimes write) | |
3330 | each portion of the object file. */ | |
3331 | ||
3332 | /* Make room for the file header, it's contents are not complete | |
3333 | yet, so it can not be written at this time. */ | |
6fa957a9 | 3334 | current_offset += sizeof (struct header); |
252b5132 RH |
3335 | |
3336 | /* Any auxiliary headers will follow the file header. Right now | |
3337 | we support only the copyright and version headers. */ | |
3338 | obj_som_file_hdr (abfd)->aux_header_location = current_offset; | |
3339 | obj_som_file_hdr (abfd)->aux_header_size = 0; | |
3340 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3341 | { | |
3342 | /* Parts of the exec header will be filled in later, so | |
3343 | delay writing the header itself. Fill in the defaults, | |
3344 | and write it later. */ | |
3345 | current_offset += sizeof (struct som_exec_auxhdr); | |
3346 | obj_som_file_hdr (abfd)->aux_header_size | |
3347 | += sizeof (struct som_exec_auxhdr); | |
3348 | exec_header = obj_som_exec_hdr (abfd); | |
3349 | exec_header->som_auxhdr.type = EXEC_AUX_ID; | |
3350 | exec_header->som_auxhdr.length = 40; | |
3351 | } | |
3352 | if (obj_som_version_hdr (abfd) != NULL) | |
3353 | { | |
3354 | unsigned int len; | |
3355 | ||
3356 | if (bfd_seek (abfd, current_offset, SEEK_SET) < 0) | |
3357 | return false; | |
3358 | ||
3359 | /* Write the aux_id structure and the string length. */ | |
3360 | len = sizeof (struct aux_id) + sizeof (unsigned int); | |
3361 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3362 | current_offset += len; | |
3363 | if (bfd_write ((PTR) obj_som_version_hdr (abfd), len, 1, abfd) != len) | |
3364 | return false; | |
3365 | ||
3366 | /* Write the version string. */ | |
3367 | len = obj_som_version_hdr (abfd)->header_id.length - sizeof (int); | |
3368 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3369 | current_offset += len; | |
3370 | if (bfd_write ((PTR) obj_som_version_hdr (abfd)->user_string, | |
3371 | len, 1, abfd) != len) | |
3372 | return false; | |
3373 | } | |
3374 | ||
3375 | if (obj_som_copyright_hdr (abfd) != NULL) | |
3376 | { | |
3377 | unsigned int len; | |
3378 | ||
3379 | if (bfd_seek (abfd, current_offset, SEEK_SET) < 0) | |
3380 | return false; | |
3381 | ||
3382 | /* Write the aux_id structure and the string length. */ | |
3383 | len = sizeof (struct aux_id) + sizeof (unsigned int); | |
3384 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3385 | current_offset += len; | |
3386 | if (bfd_write ((PTR) obj_som_copyright_hdr (abfd), len, 1, abfd) != len) | |
3387 | return false; | |
3388 | ||
3389 | /* Write the copyright string. */ | |
3390 | len = obj_som_copyright_hdr (abfd)->header_id.length - sizeof (int); | |
3391 | obj_som_file_hdr (abfd)->aux_header_size += len; | |
3392 | current_offset += len; | |
3393 | if (bfd_write ((PTR) obj_som_copyright_hdr (abfd)->copyright, | |
3394 | len, 1, abfd) != len) | |
3395 | return false; | |
3396 | } | |
3397 | ||
3398 | /* Next comes the initialization pointers; we have no initialization | |
3399 | pointers, so current offset does not change. */ | |
3400 | obj_som_file_hdr (abfd)->init_array_location = current_offset; | |
3401 | obj_som_file_hdr (abfd)->init_array_total = 0; | |
3402 | ||
3403 | /* Next are the space records. These are fixed length records. | |
3404 | ||
3405 | Count the number of spaces to determine how much room is needed | |
3406 | in the object file for the space records. | |
3407 | ||
3408 | The names of the spaces are stored in a separate string table, | |
3409 | and the index for each space into the string table is computed | |
3410 | below. Therefore, it is not possible to write the space headers | |
3411 | at this time. */ | |
3412 | num_spaces = som_count_spaces (abfd); | |
3413 | obj_som_file_hdr (abfd)->space_location = current_offset; | |
3414 | obj_som_file_hdr (abfd)->space_total = num_spaces; | |
3415 | current_offset += num_spaces * sizeof (struct space_dictionary_record); | |
3416 | ||
3417 | /* Next are the subspace records. These are fixed length records. | |
3418 | ||
3419 | Count the number of subspaes to determine how much room is needed | |
3420 | in the object file for the subspace records. | |
3421 | ||
3422 | A variety if fields in the subspace record are still unknown at | |
3423 | this time (index into string table, fixup stream location/size, etc). */ | |
3424 | num_subspaces = som_count_subspaces (abfd); | |
3425 | obj_som_file_hdr (abfd)->subspace_location = current_offset; | |
3426 | obj_som_file_hdr (abfd)->subspace_total = num_subspaces; | |
3427 | current_offset += num_subspaces * sizeof (struct subspace_dictionary_record); | |
3428 | ||
3429 | /* Next is the string table for the space/subspace names. We will | |
3430 | build and write the string table on the fly. At the same time | |
3431 | we will fill in the space/subspace name index fields. */ | |
3432 | ||
3433 | /* The string table needs to be aligned on a word boundary. */ | |
3434 | if (current_offset % 4) | |
3435 | current_offset += (4 - (current_offset % 4)); | |
3436 | ||
6fa957a9 | 3437 | /* Mark the offset of the space/subspace string table in the |
252b5132 RH |
3438 | file header. */ |
3439 | obj_som_file_hdr (abfd)->space_strings_location = current_offset; | |
3440 | ||
3441 | /* Scribble out the space strings. */ | |
3442 | if (som_write_space_strings (abfd, current_offset, &strings_size) == false) | |
3443 | return false; | |
3444 | ||
3445 | /* Record total string table size in the header and update the | |
3446 | current offset. */ | |
3447 | obj_som_file_hdr (abfd)->space_strings_size = strings_size; | |
3448 | current_offset += strings_size; | |
3449 | ||
6fa957a9 | 3450 | /* Next is the compilation unit. */ |
252b5132 RH |
3451 | obj_som_file_hdr (abfd)->compiler_location = current_offset; |
3452 | obj_som_file_hdr (abfd)->compiler_total = 0; | |
6fa957a9 | 3453 | if (obj_som_compilation_unit (abfd)) |
252b5132 RH |
3454 | { |
3455 | obj_som_file_hdr (abfd)->compiler_total = 1; | |
6fa957a9 | 3456 | current_offset += COMPUNITSZ; |
252b5132 RH |
3457 | } |
3458 | ||
3459 | /* Now compute the file positions for the loadable subspaces, taking | |
3460 | care to make sure everything stays properly aligned. */ | |
3461 | ||
3462 | section = abfd->sections; | |
3463 | for (i = 0; i < num_spaces; i++) | |
3464 | { | |
3465 | asection *subsection; | |
3466 | int first_subspace; | |
3467 | unsigned int subspace_offset = 0; | |
3468 | ||
3469 | /* Find a space. */ | |
3470 | while (!som_is_space (section)) | |
3471 | section = section->next; | |
3472 | ||
3473 | first_subspace = 1; | |
3474 | /* Now look for all its subspaces. */ | |
3475 | for (subsection = abfd->sections; | |
3476 | subsection != NULL; | |
3477 | subsection = subsection->next) | |
3478 | { | |
3479 | ||
3480 | if (!som_is_subspace (subsection) | |
3481 | || !som_is_container (section, subsection) | |
3482 | || (subsection->flags & SEC_ALLOC) == 0) | |
3483 | continue; | |
3484 | ||
3485 | /* If this is the first subspace in the space, and we are | |
3486 | building an executable, then take care to make sure all | |
3487 | the alignments are correct and update the exec header. */ | |
3488 | if (first_subspace | |
3489 | && (abfd->flags & (EXEC_P | DYNAMIC))) | |
3490 | { | |
3491 | /* Demand paged executables have each space aligned to a | |
3492 | page boundary. Sharable executables (write-protected | |
3493 | text) have just the private (aka data & bss) space aligned | |
3494 | to a page boundary. Ugh. Not true for HPUX. | |
3495 | ||
3496 | The HPUX kernel requires the text to always be page aligned | |
3497 | within the file regardless of the executable's type. */ | |
3498 | if (abfd->flags & (D_PAGED | DYNAMIC) | |
3499 | || (subsection->flags & SEC_CODE) | |
3500 | || ((abfd->flags & WP_TEXT) | |
3501 | && (subsection->flags & SEC_DATA))) | |
3502 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
3503 | ||
3504 | /* Update the exec header. */ | |
3505 | if (subsection->flags & SEC_CODE && exec_header->exec_tfile == 0) | |
3506 | { | |
3507 | exec_header->exec_tmem = section->vma; | |
3508 | exec_header->exec_tfile = current_offset; | |
3509 | } | |
3510 | if (subsection->flags & SEC_DATA && exec_header->exec_dfile == 0) | |
3511 | { | |
3512 | exec_header->exec_dmem = section->vma; | |
3513 | exec_header->exec_dfile = current_offset; | |
3514 | } | |
3515 | ||
3516 | /* Keep track of exactly where we are within a particular | |
3517 | space. This is necessary as the braindamaged HPUX | |
6fa957a9 | 3518 | loader will create holes between subspaces *and* |
252b5132 RH |
3519 | subspace alignments are *NOT* preserved. What a crock. */ |
3520 | subspace_offset = subsection->vma; | |
3521 | ||
3522 | /* Only do this for the first subspace within each space. */ | |
3523 | first_subspace = 0; | |
3524 | } | |
3525 | else if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3526 | { | |
3527 | /* The braindamaged HPUX loader may have created a hole | |
3528 | between two subspaces. It is *not* sufficient to use | |
3529 | the alignment specifications within the subspaces to | |
3530 | account for these holes -- I've run into at least one | |
3531 | case where the loader left one code subspace unaligned | |
3532 | in a final executable. | |
3533 | ||
3534 | To combat this we keep a current offset within each space, | |
3535 | and use the subspace vma fields to detect and preserve | |
3536 | holes. What a crock! | |
3537 | ||
3538 | ps. This is not necessary for unloadable space/subspaces. */ | |
3539 | current_offset += subsection->vma - subspace_offset; | |
3540 | if (subsection->flags & SEC_CODE) | |
3541 | exec_header->exec_tsize += subsection->vma - subspace_offset; | |
3542 | else | |
3543 | exec_header->exec_dsize += subsection->vma - subspace_offset; | |
3544 | subspace_offset += subsection->vma - subspace_offset; | |
3545 | } | |
3546 | ||
252b5132 RH |
3547 | subsection->target_index = total_subspaces++; |
3548 | /* This is real data to be loaded from the file. */ | |
3549 | if (subsection->flags & SEC_LOAD) | |
3550 | { | |
3551 | /* Update the size of the code & data. */ | |
3552 | if (abfd->flags & (EXEC_P | DYNAMIC) | |
3553 | && subsection->flags & SEC_CODE) | |
3554 | exec_header->exec_tsize += subsection->_cooked_size; | |
3555 | else if (abfd->flags & (EXEC_P | DYNAMIC) | |
3556 | && subsection->flags & SEC_DATA) | |
3557 | exec_header->exec_dsize += subsection->_cooked_size; | |
3558 | som_section_data (subsection)->subspace_dict->file_loc_init_value | |
3559 | = current_offset; | |
3560 | subsection->filepos = current_offset; | |
6fa957a9 | 3561 | current_offset += bfd_section_size (abfd, subsection); |
252b5132 RH |
3562 | subspace_offset += bfd_section_size (abfd, subsection); |
3563 | } | |
3564 | /* Looks like uninitialized data. */ | |
3565 | else | |
3566 | { | |
3567 | /* Update the size of the bss section. */ | |
3568 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3569 | exec_header->exec_bsize += subsection->_cooked_size; | |
3570 | ||
3571 | som_section_data (subsection)->subspace_dict->file_loc_init_value | |
3572 | = 0; | |
3573 | som_section_data (subsection)->subspace_dict-> | |
3574 | initialization_length = 0; | |
3575 | } | |
3576 | } | |
3577 | /* Goto the next section. */ | |
6fa957a9 | 3578 | section = section->next; |
252b5132 RH |
3579 | } |
3580 | ||
3581 | /* Finally compute the file positions for unloadable subspaces. | |
3582 | If building an executable, start the unloadable stuff on its | |
3583 | own page. */ | |
3584 | ||
3585 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3586 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
3587 | ||
3588 | obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset; | |
3589 | section = abfd->sections; | |
3590 | for (i = 0; i < num_spaces; i++) | |
3591 | { | |
3592 | asection *subsection; | |
3593 | ||
3594 | /* Find a space. */ | |
3595 | while (!som_is_space (section)) | |
3596 | section = section->next; | |
3597 | ||
3598 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3599 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
3600 | ||
3601 | /* Now look for all its subspaces. */ | |
3602 | for (subsection = abfd->sections; | |
3603 | subsection != NULL; | |
3604 | subsection = subsection->next) | |
3605 | { | |
6fa957a9 | 3606 | |
252b5132 RH |
3607 | if (!som_is_subspace (subsection) |
3608 | || !som_is_container (section, subsection) | |
3609 | || (subsection->flags & SEC_ALLOC) != 0) | |
3610 | continue; | |
3611 | ||
3612 | subsection->target_index = total_subspaces++; | |
3613 | /* This is real data to be loaded from the file. */ | |
3614 | if ((subsection->flags & SEC_LOAD) == 0) | |
3615 | { | |
3616 | som_section_data (subsection)->subspace_dict->file_loc_init_value | |
3617 | = current_offset; | |
3618 | subsection->filepos = current_offset; | |
6fa957a9 | 3619 | current_offset += bfd_section_size (abfd, subsection); |
252b5132 RH |
3620 | } |
3621 | /* Looks like uninitialized data. */ | |
3622 | else | |
3623 | { | |
3624 | som_section_data (subsection)->subspace_dict->file_loc_init_value | |
3625 | = 0; | |
3626 | som_section_data (subsection)->subspace_dict-> | |
3627 | initialization_length = bfd_section_size (abfd, subsection); | |
3628 | } | |
3629 | } | |
3630 | /* Goto the next section. */ | |
6fa957a9 | 3631 | section = section->next; |
252b5132 RH |
3632 | } |
3633 | ||
3634 | /* If building an executable, then make sure to seek to and write | |
3635 | one byte at the end of the file to make sure any necessary | |
3636 | zeros are filled in. Ugh. */ | |
3637 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3638 | current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE); | |
3639 | if (bfd_seek (abfd, current_offset - 1, SEEK_SET) < 0) | |
3640 | return false; | |
3641 | if (bfd_write ((PTR) "", 1, 1, abfd) != 1) | |
3642 | return false; | |
3643 | ||
3644 | obj_som_file_hdr (abfd)->unloadable_sp_size | |
3645 | = current_offset - obj_som_file_hdr (abfd)->unloadable_sp_location; | |
3646 | ||
3647 | /* Loader fixups are not supported in any way shape or form. */ | |
3648 | obj_som_file_hdr (abfd)->loader_fixup_location = 0; | |
3649 | obj_som_file_hdr (abfd)->loader_fixup_total = 0; | |
3650 | ||
3651 | /* Done. Store the total size of the SOM so far. */ | |
3652 | obj_som_file_hdr (abfd)->som_length = current_offset; | |
3653 | ||
3654 | return true; | |
3655 | } | |
3656 | ||
3657 | /* Finally, scribble out the various headers to the disk. */ | |
3658 | ||
3659 | static boolean | |
3660 | som_finish_writing (abfd) | |
3661 | bfd *abfd; | |
3662 | { | |
3663 | int num_spaces = som_count_spaces (abfd); | |
3664 | asymbol **syms = bfd_get_outsymbols (abfd); | |
3665 | int i, num_syms, strings_size; | |
3666 | int subspace_index = 0; | |
3667 | file_ptr location; | |
3668 | asection *section; | |
3669 | unsigned long current_offset; | |
3670 | unsigned int total_reloc_size; | |
3671 | ||
3672 | /* Next is the symbol table. These are fixed length records. | |
3673 | ||
3674 | Count the number of symbols to determine how much room is needed | |
3675 | in the object file for the symbol table. | |
3676 | ||
3677 | The names of the symbols are stored in a separate string table, | |
3678 | and the index for each symbol name into the string table is computed | |
3679 | below. Therefore, it is not possible to write the symbol table | |
6fa957a9 | 3680 | at this time. |
252b5132 RH |
3681 | |
3682 | These used to be output before the subspace contents, but they | |
3683 | were moved here to work around a stupid bug in the hpux linker | |
3684 | (fixed in hpux10). */ | |
3685 | current_offset = obj_som_file_hdr (abfd)->som_length; | |
3686 | ||
3687 | /* Make sure we're on a word boundary. */ | |
3688 | if (current_offset % 4) | |
6fa957a9 | 3689 | current_offset += (4 - (current_offset % 4)); |
252b5132 RH |
3690 | |
3691 | num_syms = bfd_get_symcount (abfd); | |
3692 | obj_som_file_hdr (abfd)->symbol_location = current_offset; | |
3693 | obj_som_file_hdr (abfd)->symbol_total = num_syms; | |
3694 | current_offset += num_syms * sizeof (struct symbol_dictionary_record); | |
3695 | ||
3696 | /* Next are the symbol strings. | |
3697 | Align them to a word boundary. */ | |
3698 | if (current_offset % 4) | |
3699 | current_offset += (4 - (current_offset % 4)); | |
3700 | obj_som_file_hdr (abfd)->symbol_strings_location = current_offset; | |
3701 | ||
3702 | /* Scribble out the symbol strings. */ | |
3703 | if (som_write_symbol_strings (abfd, current_offset, syms, | |
3704 | num_syms, &strings_size, | |
3705 | obj_som_compilation_unit (abfd)) | |
3706 | == false) | |
3707 | return false; | |
3708 | ||
3709 | /* Record total string table size in header and update the | |
3710 | current offset. */ | |
3711 | obj_som_file_hdr (abfd)->symbol_strings_size = strings_size; | |
3712 | current_offset += strings_size; | |
3713 | ||
3714 | /* Do prep work before handling fixups. */ | |
3715 | som_prep_for_fixups (abfd, | |
3716 | bfd_get_outsymbols (abfd), | |
3717 | bfd_get_symcount (abfd)); | |
3718 | ||
3719 | /* At the end of the file is the fixup stream which starts on a | |
3720 | word boundary. */ | |
3721 | if (current_offset % 4) | |
6fa957a9 | 3722 | current_offset += (4 - (current_offset % 4)); |
252b5132 RH |
3723 | obj_som_file_hdr (abfd)->fixup_request_location = current_offset; |
3724 | ||
3725 | /* Write the fixups and update fields in subspace headers which | |
3726 | relate to the fixup stream. */ | |
3727 | if (som_write_fixups (abfd, current_offset, &total_reloc_size) == false) | |
3728 | return false; | |
3729 | ||
3730 | /* Record the total size of the fixup stream in the file header. */ | |
3731 | obj_som_file_hdr (abfd)->fixup_request_total = total_reloc_size; | |
3732 | ||
3733 | /* Done. Store the total size of the SOM. */ | |
3734 | obj_som_file_hdr (abfd)->som_length = current_offset + total_reloc_size; | |
6fa957a9 | 3735 | |
252b5132 RH |
3736 | /* Now that the symbol table information is complete, build and |
3737 | write the symbol table. */ | |
3738 | if (som_build_and_write_symbol_table (abfd) == false) | |
3739 | return false; | |
3740 | ||
3741 | /* Subspaces are written first so that we can set up information | |
3742 | about them in their containing spaces as the subspace is written. */ | |
3743 | ||
3744 | /* Seek to the start of the subspace dictionary records. */ | |
3745 | location = obj_som_file_hdr (abfd)->subspace_location; | |
3746 | if (bfd_seek (abfd, location, SEEK_SET) < 0) | |
3747 | return false; | |
3748 | ||
3749 | section = abfd->sections; | |
3750 | /* Now for each loadable space write out records for its subspaces. */ | |
3751 | for (i = 0; i < num_spaces; i++) | |
3752 | { | |
3753 | asection *subsection; | |
3754 | ||
3755 | /* Find a space. */ | |
3756 | while (!som_is_space (section)) | |
3757 | section = section->next; | |
3758 | ||
3759 | /* Now look for all its subspaces. */ | |
3760 | for (subsection = abfd->sections; | |
3761 | subsection != NULL; | |
3762 | subsection = subsection->next) | |
3763 | { | |
6fa957a9 | 3764 | |
252b5132 RH |
3765 | /* Skip any section which does not correspond to a space |
3766 | or subspace. Or does not have SEC_ALLOC set (and therefore | |
3767 | has no real bits on the disk). */ | |
3768 | if (!som_is_subspace (subsection) | |
3769 | || !som_is_container (section, subsection) | |
3770 | || (subsection->flags & SEC_ALLOC) == 0) | |
3771 | continue; | |
3772 | ||
3773 | /* If this is the first subspace for this space, then save | |
3774 | the index of the subspace in its containing space. Also | |
3775 | set "is_loadable" in the containing space. */ | |
3776 | ||
3777 | if (som_section_data (section)->space_dict->subspace_quantity == 0) | |
3778 | { | |
3779 | som_section_data (section)->space_dict->is_loadable = 1; | |
3780 | som_section_data (section)->space_dict->subspace_index | |
3781 | = subspace_index; | |
3782 | } | |
3783 | ||
3784 | /* Increment the number of subspaces seen and the number of | |
3785 | subspaces contained within the current space. */ | |
3786 | subspace_index++; | |
3787 | som_section_data (section)->space_dict->subspace_quantity++; | |
3788 | ||
3789 | /* Mark the index of the current space within the subspace's | |
3790 | dictionary record. */ | |
3791 | som_section_data (subsection)->subspace_dict->space_index = i; | |
6fa957a9 | 3792 | |
252b5132 RH |
3793 | /* Dump the current subspace header. */ |
3794 | if (bfd_write ((PTR) som_section_data (subsection)->subspace_dict, | |
3795 | sizeof (struct subspace_dictionary_record), 1, abfd) | |
3796 | != sizeof (struct subspace_dictionary_record)) | |
3797 | return false; | |
3798 | } | |
3799 | /* Goto the next section. */ | |
6fa957a9 | 3800 | section = section->next; |
252b5132 RH |
3801 | } |
3802 | ||
3803 | /* Now repeat the process for unloadable subspaces. */ | |
3804 | section = abfd->sections; | |
3805 | /* Now for each space write out records for its subspaces. */ | |
3806 | for (i = 0; i < num_spaces; i++) | |
3807 | { | |
3808 | asection *subsection; | |
3809 | ||
3810 | /* Find a space. */ | |
3811 | while (!som_is_space (section)) | |
3812 | section = section->next; | |
3813 | ||
3814 | /* Now look for all its subspaces. */ | |
3815 | for (subsection = abfd->sections; | |
3816 | subsection != NULL; | |
3817 | subsection = subsection->next) | |
3818 | { | |
6fa957a9 | 3819 | |
252b5132 RH |
3820 | /* Skip any section which does not correspond to a space or |
3821 | subspace, or which SEC_ALLOC set (and therefore handled | |
3822 | in the loadable spaces/subspaces code above). */ | |
3823 | ||
3824 | if (!som_is_subspace (subsection) | |
3825 | || !som_is_container (section, subsection) | |
3826 | || (subsection->flags & SEC_ALLOC) != 0) | |
3827 | continue; | |
3828 | ||
3829 | /* If this is the first subspace for this space, then save | |
3830 | the index of the subspace in its containing space. Clear | |
3831 | "is_loadable". */ | |
3832 | ||
3833 | if (som_section_data (section)->space_dict->subspace_quantity == 0) | |
3834 | { | |
3835 | som_section_data (section)->space_dict->is_loadable = 0; | |
3836 | som_section_data (section)->space_dict->subspace_index | |
3837 | = subspace_index; | |
3838 | } | |
3839 | ||
3840 | /* Increment the number of subspaces seen and the number of | |
3841 | subspaces contained within the current space. */ | |
3842 | som_section_data (section)->space_dict->subspace_quantity++; | |
6fa957a9 | 3843 | subspace_index++; |
252b5132 RH |
3844 | |
3845 | /* Mark the index of the current space within the subspace's | |
3846 | dictionary record. */ | |
3847 | som_section_data (subsection)->subspace_dict->space_index = i; | |
6fa957a9 | 3848 | |
252b5132 RH |
3849 | /* Dump this subspace header. */ |
3850 | if (bfd_write ((PTR) som_section_data (subsection)->subspace_dict, | |
3851 | sizeof (struct subspace_dictionary_record), 1, abfd) | |
3852 | != sizeof (struct subspace_dictionary_record)) | |
3853 | return false; | |
3854 | } | |
3855 | /* Goto the next section. */ | |
6fa957a9 | 3856 | section = section->next; |
252b5132 RH |
3857 | } |
3858 | ||
3859 | /* All the subspace dictiondary records are written, and all the | |
3860 | fields are set up in the space dictionary records. | |
3861 | ||
3862 | Seek to the right location and start writing the space | |
3863 | dictionary records. */ | |
3864 | location = obj_som_file_hdr (abfd)->space_location; | |
3865 | if (bfd_seek (abfd, location, SEEK_SET) < 0) | |
3866 | return false; | |
3867 | ||
3868 | section = abfd->sections; | |
3869 | for (i = 0; i < num_spaces; i++) | |
3870 | { | |
3871 | ||
3872 | /* Find a space. */ | |
3873 | while (!som_is_space (section)) | |
3874 | section = section->next; | |
3875 | ||
3876 | /* Dump its header */ | |
3877 | if (bfd_write ((PTR) som_section_data (section)->space_dict, | |
3878 | sizeof (struct space_dictionary_record), 1, abfd) | |
3879 | != sizeof (struct space_dictionary_record)) | |
3880 | return false; | |
3881 | ||
3882 | /* Goto the next section. */ | |
3883 | section = section->next; | |
3884 | } | |
3885 | ||
3886 | /* Write the compilation unit record if there is one. */ | |
3887 | if (obj_som_compilation_unit (abfd)) | |
3888 | { | |
3889 | location = obj_som_file_hdr (abfd)->compiler_location; | |
3890 | if (bfd_seek (abfd, location, SEEK_SET) < 0) | |
3891 | return false; | |
3892 | ||
3893 | if (bfd_write ((PTR) obj_som_compilation_unit (abfd), | |
3894 | COMPUNITSZ, 1, abfd) != COMPUNITSZ) | |
3895 | return false; | |
3896 | } | |
3897 | ||
3898 | /* Setting of the system_id has to happen very late now that copying of | |
3899 | BFD private data happens *after* section contents are set. */ | |
3900 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3901 | obj_som_file_hdr(abfd)->system_id = obj_som_exec_data (abfd)->system_id; | |
3902 | else if (bfd_get_mach (abfd) == pa20) | |
3903 | obj_som_file_hdr(abfd)->system_id = CPU_PA_RISC2_0; | |
3904 | else if (bfd_get_mach (abfd) == pa11) | |
3905 | obj_som_file_hdr(abfd)->system_id = CPU_PA_RISC1_1; | |
3906 | else | |
3907 | obj_som_file_hdr(abfd)->system_id = CPU_PA_RISC1_0; | |
3908 | ||
3909 | /* Compute the checksum for the file header just before writing | |
3910 | the header to disk. */ | |
3911 | obj_som_file_hdr (abfd)->checksum = som_compute_checksum (abfd); | |
3912 | ||
3913 | /* Only thing left to do is write out the file header. It is always | |
3914 | at location zero. Seek there and write it. */ | |
3915 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) < 0) | |
3916 | return false; | |
3917 | if (bfd_write ((PTR) obj_som_file_hdr (abfd), | |
3918 | sizeof (struct header), 1, abfd) | |
3919 | != sizeof (struct header)) | |
3920 | return false; | |
3921 | ||
3922 | /* Now write the exec header. */ | |
3923 | if (abfd->flags & (EXEC_P | DYNAMIC)) | |
3924 | { | |
3925 | long tmp, som_length; | |
3926 | struct som_exec_auxhdr *exec_header; | |
3927 | ||
3928 | exec_header = obj_som_exec_hdr (abfd); | |
3929 | exec_header->exec_entry = bfd_get_start_address (abfd); | |
3930 | exec_header->exec_flags = obj_som_exec_data (abfd)->exec_flags; | |
3931 | ||
3932 | /* Oh joys. Ram some of the BSS data into the DATA section | |
3933 | to be compatable with how the hp linker makes objects | |
3934 | (saves memory space). */ | |
3935 | tmp = exec_header->exec_dsize; | |
3936 | tmp = SOM_ALIGN (tmp, PA_PAGESIZE); | |
3937 | exec_header->exec_bsize -= (tmp - exec_header->exec_dsize); | |
3938 | if (exec_header->exec_bsize < 0) | |
3939 | exec_header->exec_bsize = 0; | |
3940 | exec_header->exec_dsize = tmp; | |
3941 | ||
3942 | /* Now perform some sanity checks. The idea is to catch bogons now and | |
3943 | inform the user, instead of silently generating a bogus file. */ | |
3944 | som_length = obj_som_file_hdr (abfd)->som_length; | |
3945 | if (exec_header->exec_tfile + exec_header->exec_tsize > som_length | |
3946 | || exec_header->exec_dfile + exec_header->exec_dsize > som_length) | |
3947 | { | |
3948 | bfd_set_error (bfd_error_bad_value); | |
3949 | return false; | |
3950 | } | |
3951 | ||
3952 | if (bfd_seek (abfd, obj_som_file_hdr (abfd)->aux_header_location, | |
3953 | SEEK_SET) < 0) | |
3954 | return false; | |
3955 | ||
3956 | if (bfd_write ((PTR) exec_header, AUX_HDR_SIZE, 1, abfd) | |
3957 | != AUX_HDR_SIZE) | |
3958 | return false; | |
3959 | } | |
3960 | return true; | |
3961 | } | |
3962 | ||
3963 | /* Compute and return the checksum for a SOM file header. */ | |
3964 | ||
3965 | static unsigned long | |
3966 | som_compute_checksum (abfd) | |
3967 | bfd *abfd; | |
3968 | { | |
3969 | unsigned long checksum, count, i; | |
3970 | unsigned long *buffer = (unsigned long *) obj_som_file_hdr (abfd); | |
3971 | ||
3972 | checksum = 0; | |
3973 | count = sizeof (struct header) / sizeof (unsigned long); | |
3974 | for (i = 0; i < count; i++) | |
3975 | checksum ^= *(buffer + i); | |
3976 | ||
3977 | return checksum; | |
3978 | } | |
3979 | ||
3980 | static void | |
3981 | som_bfd_derive_misc_symbol_info (abfd, sym, info) | |
7dca057b | 3982 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
3983 | asymbol *sym; |
3984 | struct som_misc_symbol_info *info; | |
3985 | { | |
3986 | /* Initialize. */ | |
3987 | memset (info, 0, sizeof (struct som_misc_symbol_info)); | |
3988 | ||
3989 | /* The HP SOM linker requires detailed type information about | |
3990 | all symbols (including undefined symbols!). Unfortunately, | |
3991 | the type specified in an import/export statement does not | |
3992 | always match what the linker wants. Severe braindamage. */ | |
6fa957a9 | 3993 | |
252b5132 RH |
3994 | /* Section symbols will not have a SOM symbol type assigned to |
3995 | them yet. Assign all section symbols type ST_DATA. */ | |
3996 | if (sym->flags & BSF_SECTION_SYM) | |
3997 | info->symbol_type = ST_DATA; | |
3998 | else | |
3999 | { | |
4000 | /* Common symbols must have scope SS_UNSAT and type | |
4001 | ST_STORAGE or the linker will choke. */ | |
4002 | if (bfd_is_com_section (sym->section)) | |
4003 | { | |
4004 | info->symbol_scope = SS_UNSAT; | |
4005 | info->symbol_type = ST_STORAGE; | |
4006 | } | |
4007 | ||
4008 | /* It is possible to have a symbol without an associated | |
4009 | type. This happens if the user imported the symbol | |
4010 | without a type and the symbol was never defined | |
4011 | locally. If BSF_FUNCTION is set for this symbol, then | |
4012 | assign it type ST_CODE (the HP linker requires undefined | |
4013 | external functions to have type ST_CODE rather than ST_ENTRY). */ | |
4014 | else if ((som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN | |
4015 | || som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE) | |
4016 | && bfd_is_und_section (sym->section) | |
4017 | && sym->flags & BSF_FUNCTION) | |
4018 | info->symbol_type = ST_CODE; | |
4019 | ||
4020 | /* Handle function symbols which were defined in this file. | |
4021 | They should have type ST_ENTRY. Also retrieve the argument | |
4022 | relocation bits from the SOM backend information. */ | |
4023 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ENTRY | |
4024 | || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE | |
4025 | && (sym->flags & BSF_FUNCTION)) | |
4026 | || (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN | |
4027 | && (sym->flags & BSF_FUNCTION))) | |
4028 | { | |
4029 | info->symbol_type = ST_ENTRY; | |
4030 | info->arg_reloc = som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc; | |
4031 | info->priv_level= som_symbol_data (sym)->tc_data.ap.hppa_priv_level; | |
4032 | } | |
4033 | ||
4034 | /* For unknown symbols set the symbol's type based on the symbol's | |
4035 | section (ST_DATA for DATA sections, ST_CODE for CODE sections). */ | |
4036 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN) | |
4037 | { | |
4038 | if (sym->section->flags & SEC_CODE) | |
4039 | info->symbol_type = ST_CODE; | |
4040 | else | |
4041 | info->symbol_type = ST_DATA; | |
4042 | } | |
6fa957a9 | 4043 | |
252b5132 RH |
4044 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_UNKNOWN) |
4045 | info->symbol_type = ST_DATA; | |
4046 | ||
4047 | /* From now on it's a very simple mapping. */ | |
4048 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_ABSOLUTE) | |
4049 | info->symbol_type = ST_ABSOLUTE; | |
4050 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_CODE) | |
4051 | info->symbol_type = ST_CODE; | |
4052 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_DATA) | |
4053 | info->symbol_type = ST_DATA; | |
4054 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_MILLICODE) | |
4055 | info->symbol_type = ST_MILLICODE; | |
4056 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PLABEL) | |
4057 | info->symbol_type = ST_PLABEL; | |
4058 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_PRI_PROG) | |
4059 | info->symbol_type = ST_PRI_PROG; | |
4060 | else if (som_symbol_data (sym)->som_type == SYMBOL_TYPE_SEC_PROG) | |
4061 | info->symbol_type = ST_SEC_PROG; | |
4062 | } | |
6fa957a9 | 4063 | |
252b5132 RH |
4064 | /* Now handle the symbol's scope. Exported data which is not |
4065 | in the common section has scope SS_UNIVERSAL. Note scope | |
4066 | of common symbols was handled earlier! */ | |
4067 | if (bfd_is_und_section (sym->section)) | |
4068 | info->symbol_scope = SS_UNSAT; | |
40914184 AM |
4069 | else if (sym->flags & (BSF_EXPORT | BSF_WEAK) |
4070 | && ! bfd_is_com_section (sym->section)) | |
252b5132 RH |
4071 | info->symbol_scope = SS_UNIVERSAL; |
4072 | /* Anything else which is not in the common section has scope | |
4073 | SS_LOCAL. */ | |
4074 | else if (! bfd_is_com_section (sym->section)) | |
4075 | info->symbol_scope = SS_LOCAL; | |
4076 | ||
4077 | /* Now set the symbol_info field. It has no real meaning | |
4078 | for undefined or common symbols, but the HP linker will | |
4079 | choke if it's not set to some "reasonable" value. We | |
4080 | use zero as a reasonable value. */ | |
4081 | if (bfd_is_com_section (sym->section) | |
4082 | || bfd_is_und_section (sym->section) | |
4083 | || bfd_is_abs_section (sym->section)) | |
4084 | info->symbol_info = 0; | |
6fa957a9 | 4085 | /* For all other symbols, the symbol_info field contains the |
252b5132 RH |
4086 | subspace index of the space this symbol is contained in. */ |
4087 | else | |
4088 | info->symbol_info = sym->section->target_index; | |
4089 | ||
4090 | /* Set the symbol's value. */ | |
4091 | info->symbol_value = sym->value + sym->section->vma; | |
ba20314e CM |
4092 | |
4093 | /* The secondary_def field is for weak symbols. */ | |
4094 | if (sym->flags & BSF_WEAK) | |
4095 | info->secondary_def = true; | |
4096 | else | |
4097 | info->secondary_def = false; | |
4098 | ||
252b5132 RH |
4099 | } |
4100 | ||
4101 | /* Build and write, in one big chunk, the entire symbol table for | |
4102 | this BFD. */ | |
4103 | ||
4104 | static boolean | |
4105 | som_build_and_write_symbol_table (abfd) | |
4106 | bfd *abfd; | |
4107 | { | |
4108 | unsigned int num_syms = bfd_get_symcount (abfd); | |
4109 | file_ptr symtab_location = obj_som_file_hdr (abfd)->symbol_location; | |
4110 | asymbol **bfd_syms = obj_som_sorted_syms (abfd); | |
4111 | struct symbol_dictionary_record *som_symtab = NULL; | |
4112 | int i, symtab_size; | |
4113 | ||
4114 | /* Compute total symbol table size and allocate a chunk of memory | |
4115 | to hold the symbol table as we build it. */ | |
4116 | symtab_size = num_syms * sizeof (struct symbol_dictionary_record); | |
4117 | som_symtab = (struct symbol_dictionary_record *) bfd_malloc (symtab_size); | |
4118 | if (som_symtab == NULL && symtab_size != 0) | |
4119 | goto error_return; | |
4120 | memset (som_symtab, 0, symtab_size); | |
4121 | ||
4122 | /* Walk over each symbol. */ | |
4123 | for (i = 0; i < num_syms; i++) | |
4124 | { | |
4125 | struct som_misc_symbol_info info; | |
4126 | ||
6fa957a9 KH |
4127 | /* This is really an index into the symbol strings table. |
4128 | By the time we get here, the index has already been | |
252b5132 RH |
4129 | computed and stored into the name field in the BFD symbol. */ |
4130 | som_symtab[i].name.n_strx = som_symbol_data(bfd_syms[i])->stringtab_offset; | |
4131 | ||
4132 | /* Derive SOM information from the BFD symbol. */ | |
4133 | som_bfd_derive_misc_symbol_info (abfd, bfd_syms[i], &info); | |
4134 | ||
4135 | /* Now use it. */ | |
4136 | som_symtab[i].symbol_type = info.symbol_type; | |
4137 | som_symtab[i].symbol_scope = info.symbol_scope; | |
4138 | som_symtab[i].arg_reloc = info.arg_reloc; | |
4139 | som_symtab[i].symbol_info = info.symbol_info; | |
4140 | som_symtab[i].xleast = 3; | |
4141 | som_symtab[i].symbol_value = info.symbol_value | info.priv_level; | |
ba20314e | 4142 | som_symtab[i].secondary_def = info.secondary_def; |
252b5132 RH |
4143 | } |
4144 | ||
4145 | /* Everything is ready, seek to the right location and | |
4146 | scribble out the symbol table. */ | |
4147 | if (bfd_seek (abfd, symtab_location, SEEK_SET) != 0) | |
4148 | return false; | |
4149 | ||
4150 | if (bfd_write ((PTR) som_symtab, symtab_size, 1, abfd) != symtab_size) | |
4151 | goto error_return; | |
4152 | ||
4153 | if (som_symtab != NULL) | |
4154 | free (som_symtab); | |
4155 | return true; | |
4156 | error_return: | |
4157 | if (som_symtab != NULL) | |
4158 | free (som_symtab); | |
4159 | return false; | |
4160 | } | |
4161 | ||
6fa957a9 | 4162 | /* Write an object in SOM format. */ |
252b5132 RH |
4163 | |
4164 | static boolean | |
4165 | som_write_object_contents (abfd) | |
4166 | bfd *abfd; | |
4167 | { | |
4168 | if (abfd->output_has_begun == false) | |
4169 | { | |
4170 | /* Set up fixed parts of the file, space, and subspace headers. | |
4171 | Notify the world that output has begun. */ | |
4172 | som_prep_headers (abfd); | |
4173 | abfd->output_has_begun = true; | |
4174 | /* Start writing the object file. This include all the string | |
4175 | tables, fixup streams, and other portions of the object file. */ | |
4176 | som_begin_writing (abfd); | |
4177 | } | |
4178 | ||
4179 | return (som_finish_writing (abfd)); | |
4180 | } | |
4181 | ||
4182 | \f | |
4183 | /* Read and save the string table associated with the given BFD. */ | |
4184 | ||
4185 | static boolean | |
4186 | som_slurp_string_table (abfd) | |
4187 | bfd *abfd; | |
4188 | { | |
4189 | char *stringtab; | |
4190 | ||
4191 | /* Use the saved version if its available. */ | |
4192 | if (obj_som_stringtab (abfd) != NULL) | |
4193 | return true; | |
4194 | ||
4195 | /* I don't think this can currently happen, and I'm not sure it should | |
4196 | really be an error, but it's better than getting unpredictable results | |
4197 | from the host's malloc when passed a size of zero. */ | |
4198 | if (obj_som_stringtab_size (abfd) == 0) | |
4199 | { | |
4200 | bfd_set_error (bfd_error_no_symbols); | |
4201 | return false; | |
4202 | } | |
4203 | ||
4204 | /* Allocate and read in the string table. */ | |
4205 | stringtab = bfd_malloc (obj_som_stringtab_size (abfd)); | |
4206 | if (stringtab == NULL) | |
4207 | return false; | |
4208 | memset (stringtab, 0, obj_som_stringtab_size (abfd)); | |
4209 | ||
4210 | if (bfd_seek (abfd, obj_som_str_filepos (abfd), SEEK_SET) < 0) | |
4211 | return false; | |
6fa957a9 | 4212 | |
252b5132 RH |
4213 | if (bfd_read (stringtab, obj_som_stringtab_size (abfd), 1, abfd) |
4214 | != obj_som_stringtab_size (abfd)) | |
4215 | return false; | |
4216 | ||
6fa957a9 | 4217 | /* Save our results and return success. */ |
252b5132 RH |
4218 | obj_som_stringtab (abfd) = stringtab; |
4219 | return true; | |
4220 | } | |
4221 | ||
4222 | /* Return the amount of data (in bytes) required to hold the symbol | |
4223 | table for this object. */ | |
4224 | ||
4225 | static long | |
4226 | som_get_symtab_upper_bound (abfd) | |
4227 | bfd *abfd; | |
4228 | { | |
4229 | if (!som_slurp_symbol_table (abfd)) | |
4230 | return -1; | |
4231 | ||
4232 | return (bfd_get_symcount (abfd) + 1) * (sizeof (asymbol *)); | |
4233 | } | |
4234 | ||
4235 | /* Convert from a SOM subspace index to a BFD section. */ | |
4236 | ||
4237 | static asection * | |
4238 | bfd_section_from_som_symbol (abfd, symbol) | |
4239 | bfd *abfd; | |
4240 | struct symbol_dictionary_record *symbol; | |
4241 | { | |
4242 | asection *section; | |
4243 | ||
4244 | /* The meaning of the symbol_info field changes for functions | |
4245 | within executables. So only use the quick symbol_info mapping for | |
4246 | incomplete objects and non-function symbols in executables. */ | |
4247 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 | |
4248 | || (symbol->symbol_type != ST_ENTRY | |
4249 | && symbol->symbol_type != ST_PRI_PROG | |
4250 | && symbol->symbol_type != ST_SEC_PROG | |
4251 | && symbol->symbol_type != ST_MILLICODE)) | |
4252 | { | |
4253 | unsigned int index = symbol->symbol_info; | |
4254 | for (section = abfd->sections; section != NULL; section = section->next) | |
4255 | if (section->target_index == index && som_is_subspace (section)) | |
4256 | return section; | |
4257 | ||
4258 | /* Could be a symbol from an external library (such as an OMOS | |
4259 | shared library). Don't abort. */ | |
4260 | return bfd_abs_section_ptr; | |
4261 | ||
4262 | } | |
4263 | else | |
4264 | { | |
4265 | unsigned int value = symbol->symbol_value; | |
4266 | ||
4267 | /* For executables we will have to use the symbol's address and | |
4268 | find out what section would contain that address. Yuk. */ | |
4269 | for (section = abfd->sections; section; section = section->next) | |
4270 | { | |
4271 | if (value >= section->vma | |
4272 | && value <= section->vma + section->_cooked_size | |
4273 | && som_is_subspace (section)) | |
4274 | return section; | |
4275 | } | |
4276 | ||
4277 | /* Could be a symbol from an external library (such as an OMOS | |
4278 | shared library). Don't abort. */ | |
4279 | return bfd_abs_section_ptr; | |
4280 | ||
4281 | } | |
4282 | } | |
4283 | ||
4284 | /* Read and save the symbol table associated with the given BFD. */ | |
4285 | ||
4286 | static unsigned int | |
4287 | som_slurp_symbol_table (abfd) | |
4288 | bfd *abfd; | |
4289 | { | |
4290 | int symbol_count = bfd_get_symcount (abfd); | |
4291 | int symsize = sizeof (struct symbol_dictionary_record); | |
4292 | char *stringtab; | |
4293 | struct symbol_dictionary_record *buf = NULL, *bufp, *endbufp; | |
4294 | som_symbol_type *sym, *symbase; | |
4295 | ||
4296 | /* Return saved value if it exists. */ | |
4297 | if (obj_som_symtab (abfd) != NULL) | |
4298 | goto successful_return; | |
4299 | ||
4300 | /* Special case. This is *not* an error. */ | |
4301 | if (symbol_count == 0) | |
4302 | goto successful_return; | |
4303 | ||
4304 | if (!som_slurp_string_table (abfd)) | |
4305 | goto error_return; | |
4306 | ||
4307 | stringtab = obj_som_stringtab (abfd); | |
4308 | ||
4309 | symbase = ((som_symbol_type *) | |
4310 | bfd_malloc (symbol_count * sizeof (som_symbol_type))); | |
4311 | if (symbase == NULL) | |
4312 | goto error_return; | |
4313 | memset (symbase, 0, symbol_count * sizeof (som_symbol_type)); | |
4314 | ||
4315 | /* Read in the external SOM representation. */ | |
4316 | buf = bfd_malloc (symbol_count * symsize); | |
4317 | if (buf == NULL && symbol_count * symsize != 0) | |
4318 | goto error_return; | |
4319 | if (bfd_seek (abfd, obj_som_sym_filepos (abfd), SEEK_SET) < 0) | |
4320 | goto error_return; | |
6fa957a9 | 4321 | if (bfd_read (buf, symbol_count * symsize, 1, abfd) |
252b5132 RH |
4322 | != symbol_count * symsize) |
4323 | goto error_return; | |
4324 | ||
4325 | /* Iterate over all the symbols and internalize them. */ | |
4326 | endbufp = buf + symbol_count; | |
4327 | for (bufp = buf, sym = symbase; bufp < endbufp; ++bufp) | |
4328 | { | |
4329 | ||
4330 | /* I don't think we care about these. */ | |
4331 | if (bufp->symbol_type == ST_SYM_EXT | |
4332 | || bufp->symbol_type == ST_ARG_EXT) | |
4333 | continue; | |
4334 | ||
4335 | /* Set some private data we care about. */ | |
4336 | if (bufp->symbol_type == ST_NULL) | |
4337 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN; | |
4338 | else if (bufp->symbol_type == ST_ABSOLUTE) | |
4339 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_ABSOLUTE; | |
4340 | else if (bufp->symbol_type == ST_DATA) | |
4341 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_DATA; | |
4342 | else if (bufp->symbol_type == ST_CODE) | |
4343 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_CODE; | |
4344 | else if (bufp->symbol_type == ST_PRI_PROG) | |
4345 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_PRI_PROG; | |
4346 | else if (bufp->symbol_type == ST_SEC_PROG) | |
4347 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_SEC_PROG; | |
4348 | else if (bufp->symbol_type == ST_ENTRY) | |
4349 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_ENTRY; | |
4350 | else if (bufp->symbol_type == ST_MILLICODE) | |
4351 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_MILLICODE; | |
4352 | else if (bufp->symbol_type == ST_PLABEL) | |
4353 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_PLABEL; | |
4354 | else | |
4355 | som_symbol_data (sym)->som_type = SYMBOL_TYPE_UNKNOWN; | |
4356 | som_symbol_data (sym)->tc_data.ap.hppa_arg_reloc = bufp->arg_reloc; | |
4357 | ||
4358 | /* Some reasonable defaults. */ | |
4359 | sym->symbol.the_bfd = abfd; | |
4360 | sym->symbol.name = bufp->name.n_strx + stringtab; | |
4361 | sym->symbol.value = bufp->symbol_value; | |
4362 | sym->symbol.section = 0; | |
4363 | sym->symbol.flags = 0; | |
4364 | ||
4365 | switch (bufp->symbol_type) | |
4366 | { | |
4367 | case ST_ENTRY: | |
4368 | case ST_MILLICODE: | |
4369 | sym->symbol.flags |= BSF_FUNCTION; | |
4370 | som_symbol_data (sym)->tc_data.ap.hppa_priv_level = | |
4371 | sym->symbol.value & 0x3; | |
4372 | sym->symbol.value &= ~0x3; | |
4373 | break; | |
4374 | ||
4375 | case ST_STUB: | |
4376 | case ST_CODE: | |
4377 | case ST_PRI_PROG: | |
4378 | case ST_SEC_PROG: | |
4379 | som_symbol_data (sym)->tc_data.ap.hppa_priv_level = | |
4380 | sym->symbol.value & 0x3; | |
4381 | sym->symbol.value &= ~0x3; | |
7da1b175 | 4382 | /* If the symbol's scope is SS_UNSAT, then these are |
252b5132 RH |
4383 | undefined function symbols. */ |
4384 | if (bufp->symbol_scope == SS_UNSAT) | |
4385 | sym->symbol.flags |= BSF_FUNCTION; | |
252b5132 RH |
4386 | |
4387 | default: | |
4388 | break; | |
4389 | } | |
4390 | ||
4391 | /* Handle scoping and section information. */ | |
4392 | switch (bufp->symbol_scope) | |
4393 | { | |
4394 | /* symbol_info field is undefined for SS_EXTERNAL and SS_UNSAT symbols, | |
4395 | so the section associated with this symbol can't be known. */ | |
4396 | case SS_EXTERNAL: | |
4397 | if (bufp->symbol_type != ST_STORAGE) | |
4398 | sym->symbol.section = bfd_und_section_ptr; | |
4399 | else | |
4400 | sym->symbol.section = bfd_com_section_ptr; | |
4401 | sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL); | |
4402 | break; | |
4403 | ||
4404 | case SS_UNSAT: | |
4405 | if (bufp->symbol_type != ST_STORAGE) | |
4406 | sym->symbol.section = bfd_und_section_ptr; | |
4407 | else | |
4408 | sym->symbol.section = bfd_com_section_ptr; | |
4409 | break; | |
4410 | ||
4411 | case SS_UNIVERSAL: | |
4412 | sym->symbol.flags |= (BSF_EXPORT | BSF_GLOBAL); | |
4413 | sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp); | |
4414 | sym->symbol.value -= sym->symbol.section->vma; | |
4415 | break; | |
4416 | ||
4417 | #if 0 | |
4418 | /* SS_GLOBAL and SS_LOCAL are two names for the same thing. | |
4419 | Sound dumb? It is. */ | |
4420 | case SS_GLOBAL: | |
4421 | #endif | |
4422 | case SS_LOCAL: | |
4423 | sym->symbol.flags |= BSF_LOCAL; | |
4424 | sym->symbol.section = bfd_section_from_som_symbol (abfd, bufp); | |
4425 | sym->symbol.value -= sym->symbol.section->vma; | |
4426 | break; | |
4427 | } | |
4428 | ||
ba20314e CM |
4429 | /* Check for a weak symbol. */ |
4430 | if (bufp->secondary_def) | |
4431 | sym->symbol.flags |= BSF_WEAK; | |
4432 | ||
252b5132 RH |
4433 | /* Mark section symbols and symbols used by the debugger. |
4434 | Note $START$ is a magic code symbol, NOT a section symbol. */ | |
4435 | if (sym->symbol.name[0] == '$' | |
4436 | && sym->symbol.name[strlen (sym->symbol.name) - 1] == '$' | |
4437 | && !strcmp (sym->symbol.name, sym->symbol.section->name)) | |
4438 | sym->symbol.flags |= BSF_SECTION_SYM; | |
4439 | else if (!strncmp (sym->symbol.name, "L$0\002", 4)) | |
4440 | { | |
4441 | sym->symbol.flags |= BSF_SECTION_SYM; | |
4442 | sym->symbol.name = sym->symbol.section->name; | |
4443 | } | |
4444 | else if (!strncmp (sym->symbol.name, "L$0\001", 4)) | |
4445 | sym->symbol.flags |= BSF_DEBUGGING; | |
4446 | ||
4447 | /* Note increment at bottom of loop, since we skip some symbols | |
4448 | we can not include it as part of the for statement. */ | |
4449 | sym++; | |
4450 | } | |
4451 | ||
4452 | /* We modify the symbol count to record the number of BFD symbols we | |
4453 | created. */ | |
4454 | bfd_get_symcount (abfd) = sym - symbase; | |
4455 | ||
4456 | /* Save our results and return success. */ | |
4457 | obj_som_symtab (abfd) = symbase; | |
4458 | successful_return: | |
4459 | if (buf != NULL) | |
4460 | free (buf); | |
4461 | return (true); | |
4462 | ||
4463 | error_return: | |
4464 | if (buf != NULL) | |
4465 | free (buf); | |
4466 | return false; | |
4467 | } | |
4468 | ||
4469 | /* Canonicalize a SOM symbol table. Return the number of entries | |
4470 | in the symbol table. */ | |
4471 | ||
4472 | static long | |
4473 | som_get_symtab (abfd, location) | |
4474 | bfd *abfd; | |
4475 | asymbol **location; | |
4476 | { | |
4477 | int i; | |
4478 | som_symbol_type *symbase; | |
4479 | ||
4480 | if (!som_slurp_symbol_table (abfd)) | |
4481 | return -1; | |
4482 | ||
4483 | i = bfd_get_symcount (abfd); | |
4484 | symbase = obj_som_symtab (abfd); | |
4485 | ||
4486 | for (; i > 0; i--, location++, symbase++) | |
4487 | *location = &symbase->symbol; | |
4488 | ||
4489 | /* Final null pointer. */ | |
4490 | *location = 0; | |
4491 | return (bfd_get_symcount (abfd)); | |
4492 | } | |
4493 | ||
4494 | /* Make a SOM symbol. There is nothing special to do here. */ | |
4495 | ||
4496 | static asymbol * | |
4497 | som_make_empty_symbol (abfd) | |
4498 | bfd *abfd; | |
4499 | { | |
4500 | som_symbol_type *new = | |
4501 | (som_symbol_type *) bfd_zalloc (abfd, sizeof (som_symbol_type)); | |
4502 | if (new == NULL) | |
4503 | return 0; | |
4504 | new->symbol.the_bfd = abfd; | |
4505 | ||
4506 | return &new->symbol; | |
4507 | } | |
4508 | ||
4509 | /* Print symbol information. */ | |
4510 | ||
4511 | static void | |
4512 | som_print_symbol (ignore_abfd, afile, symbol, how) | |
7dca057b | 4513 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
4514 | PTR afile; |
4515 | asymbol *symbol; | |
4516 | bfd_print_symbol_type how; | |
4517 | { | |
4518 | FILE *file = (FILE *) afile; | |
4519 | switch (how) | |
4520 | { | |
4521 | case bfd_print_symbol_name: | |
4522 | fprintf (file, "%s", symbol->name); | |
4523 | break; | |
4524 | case bfd_print_symbol_more: | |
4525 | fprintf (file, "som "); | |
4526 | fprintf_vma (file, symbol->value); | |
4527 | fprintf (file, " %lx", (long) symbol->flags); | |
4528 | break; | |
4529 | case bfd_print_symbol_all: | |
4530 | { | |
4531 | CONST char *section_name; | |
4532 | section_name = symbol->section ? symbol->section->name : "(*none*)"; | |
4533 | bfd_print_symbol_vandf ((PTR) file, symbol); | |
4534 | fprintf (file, " %s\t%s", section_name, symbol->name); | |
4535 | break; | |
4536 | } | |
4537 | } | |
4538 | } | |
4539 | ||
4540 | static boolean | |
4541 | som_bfd_is_local_label_name (abfd, name) | |
7dca057b | 4542 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
4543 | const char *name; |
4544 | { | |
4545 | return (name[0] == 'L' && name[1] == '$'); | |
4546 | } | |
4547 | ||
4548 | /* Count or process variable-length SOM fixup records. | |
4549 | ||
4550 | To avoid code duplication we use this code both to compute the number | |
4551 | of relocations requested by a stream, and to internalize the stream. | |
4552 | ||
4553 | When computing the number of relocations requested by a stream the | |
4554 | variables rptr, section, and symbols have no meaning. | |
4555 | ||
4556 | Return the number of relocations requested by the fixup stream. When | |
6fa957a9 | 4557 | not just counting |
252b5132 RH |
4558 | |
4559 | This needs at least two or three more passes to get it cleaned up. */ | |
4560 | ||
4561 | static unsigned int | |
4562 | som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count) | |
4563 | unsigned char *fixup; | |
4564 | unsigned int end; | |
4565 | arelent *internal_relocs; | |
4566 | asection *section; | |
4567 | asymbol **symbols; | |
4568 | boolean just_count; | |
4569 | { | |
4570 | unsigned int op, varname, deallocate_contents = 0; | |
4571 | unsigned char *end_fixups = &fixup[end]; | |
4572 | const struct fixup_format *fp; | |
7dca057b | 4573 | const char *cp; |
252b5132 RH |
4574 | unsigned char *save_fixup; |
4575 | int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits; | |
4576 | const int *subop; | |
4577 | arelent *rptr= internal_relocs; | |
4578 | unsigned int offset = 0; | |
4579 | ||
4580 | #define var(c) variables[(c) - 'A'] | |
4581 | #define push(v) (*sp++ = (v)) | |
4582 | #define pop() (*--sp) | |
4583 | #define emptystack() (sp == stack) | |
4584 | ||
4585 | som_initialize_reloc_queue (reloc_queue); | |
4586 | memset (variables, 0, sizeof (variables)); | |
4587 | memset (stack, 0, sizeof (stack)); | |
4588 | count = 0; | |
4589 | prev_fixup = 0; | |
4590 | saved_unwind_bits = 0; | |
4591 | sp = stack; | |
4592 | ||
4593 | while (fixup < end_fixups) | |
4594 | { | |
4595 | ||
4596 | /* Save pointer to the start of this fixup. We'll use | |
4597 | it later to determine if it is necessary to put this fixup | |
4598 | on the queue. */ | |
4599 | save_fixup = fixup; | |
4600 | ||
4601 | /* Get the fixup code and its associated format. */ | |
4602 | op = *fixup++; | |
4603 | fp = &som_fixup_formats[op]; | |
4604 | ||
4605 | /* Handle a request for a previous fixup. */ | |
4606 | if (*fp->format == 'P') | |
4607 | { | |
4608 | /* Get pointer to the beginning of the prev fixup, move | |
4609 | the repeated fixup to the head of the queue. */ | |
4610 | fixup = reloc_queue[fp->D].reloc; | |
4611 | som_reloc_queue_fix (reloc_queue, fp->D); | |
4612 | prev_fixup = 1; | |
4613 | ||
4614 | /* Get the fixup code and its associated format. */ | |
4615 | op = *fixup++; | |
4616 | fp = &som_fixup_formats[op]; | |
4617 | } | |
4618 | ||
4619 | /* If this fixup will be passed to BFD, set some reasonable defaults. */ | |
4620 | if (! just_count | |
4621 | && som_hppa_howto_table[op].type != R_NO_RELOCATION | |
4622 | && som_hppa_howto_table[op].type != R_DATA_OVERRIDE) | |
4623 | { | |
4624 | rptr->address = offset; | |
4625 | rptr->howto = &som_hppa_howto_table[op]; | |
4626 | rptr->addend = 0; | |
4627 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4628 | } | |
4629 | ||
4630 | /* Set default input length to 0. Get the opcode class index | |
4631 | into D. */ | |
4632 | var ('L') = 0; | |
4633 | var ('D') = fp->D; | |
4634 | var ('U') = saved_unwind_bits; | |
4635 | ||
4636 | /* Get the opcode format. */ | |
4637 | cp = fp->format; | |
4638 | ||
4639 | /* Process the format string. Parsing happens in two phases, | |
6fa957a9 | 4640 | parse RHS, then assign to LHS. Repeat until no more |
252b5132 RH |
4641 | characters in the format string. */ |
4642 | while (*cp) | |
4643 | { | |
4644 | /* The variable this pass is going to compute a value for. */ | |
4645 | varname = *cp++; | |
4646 | ||
4647 | /* Start processing RHS. Continue until a NULL or '=' is found. */ | |
4648 | do | |
4649 | { | |
4650 | c = *cp++; | |
4651 | ||
4652 | /* If this is a variable, push it on the stack. */ | |
4653 | if (isupper (c)) | |
4654 | push (var (c)); | |
4655 | ||
4656 | /* If this is a lower case letter, then it represents | |
4657 | additional data from the fixup stream to be pushed onto | |
4658 | the stack. */ | |
4659 | else if (islower (c)) | |
4660 | { | |
4661 | int bits = (c - 'a') * 8; | |
4662 | for (v = 0; c > 'a'; --c) | |
4663 | v = (v << 8) | *fixup++; | |
4664 | if (varname == 'V') | |
4665 | v = sign_extend (v, bits); | |
4666 | push (v); | |
4667 | } | |
4668 | ||
4669 | /* A decimal constant. Push it on the stack. */ | |
4670 | else if (isdigit (c)) | |
4671 | { | |
4672 | v = c - '0'; | |
4673 | while (isdigit (*cp)) | |
4674 | v = (v * 10) + (*cp++ - '0'); | |
4675 | push (v); | |
4676 | } | |
4677 | else | |
4678 | ||
4679 | /* An operator. Pop two two values from the stack and | |
4680 | use them as operands to the given operation. Push | |
4681 | the result of the operation back on the stack. */ | |
4682 | switch (c) | |
4683 | { | |
4684 | case '+': | |
4685 | v = pop (); | |
4686 | v += pop (); | |
4687 | push (v); | |
4688 | break; | |
4689 | case '*': | |
4690 | v = pop (); | |
4691 | v *= pop (); | |
4692 | push (v); | |
4693 | break; | |
4694 | case '<': | |
4695 | v = pop (); | |
4696 | v = pop () << v; | |
4697 | push (v); | |
4698 | break; | |
4699 | default: | |
4700 | abort (); | |
4701 | } | |
4702 | } | |
4703 | while (*cp && *cp != '='); | |
4704 | ||
4705 | /* Move over the equal operator. */ | |
4706 | cp++; | |
4707 | ||
4708 | /* Pop the RHS off the stack. */ | |
4709 | c = pop (); | |
4710 | ||
4711 | /* Perform the assignment. */ | |
4712 | var (varname) = c; | |
4713 | ||
4714 | /* Handle side effects. and special 'O' stack cases. */ | |
4715 | switch (varname) | |
4716 | { | |
4717 | /* Consume some bytes from the input space. */ | |
4718 | case 'L': | |
4719 | offset += c; | |
4720 | break; | |
4721 | /* A symbol to use in the relocation. Make a note | |
4722 | of this if we are not just counting. */ | |
4723 | case 'S': | |
4724 | if (! just_count) | |
4725 | rptr->sym_ptr_ptr = &symbols[c]; | |
4726 | break; | |
4727 | /* Argument relocation bits for a function call. */ | |
4728 | case 'R': | |
4729 | if (! just_count) | |
4730 | { | |
4731 | unsigned int tmp = var ('R'); | |
4732 | rptr->addend = 0; | |
4733 | ||
4734 | if ((som_hppa_howto_table[op].type == R_PCREL_CALL | |
4735 | && R_PCREL_CALL + 10 > op) | |
4736 | || (som_hppa_howto_table[op].type == R_ABS_CALL | |
4737 | && R_ABS_CALL + 10 > op)) | |
4738 | { | |
4739 | /* Simple encoding. */ | |
4740 | if (tmp > 4) | |
4741 | { | |
4742 | tmp -= 5; | |
4743 | rptr->addend |= 1; | |
4744 | } | |
4745 | if (tmp == 4) | |
4746 | rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4 | 1 << 2; | |
4747 | else if (tmp == 3) | |
4748 | rptr->addend |= 1 << 8 | 1 << 6 | 1 << 4; | |
4749 | else if (tmp == 2) | |
4750 | rptr->addend |= 1 << 8 | 1 << 6; | |
4751 | else if (tmp == 1) | |
4752 | rptr->addend |= 1 << 8; | |
4753 | } | |
4754 | else | |
4755 | { | |
4756 | unsigned int tmp1, tmp2; | |
4757 | ||
4758 | /* First part is easy -- low order two bits are | |
4759 | directly copied, then shifted away. */ | |
4760 | rptr->addend = tmp & 0x3; | |
4761 | tmp >>= 2; | |
4762 | ||
4763 | /* Diving the result by 10 gives us the second | |
4764 | part. If it is 9, then the first two words | |
4765 | are a double precision paramater, else it is | |
4766 | 3 * the first arg bits + the 2nd arg bits. */ | |
4767 | tmp1 = tmp / 10; | |
4768 | tmp -= tmp1 * 10; | |
4769 | if (tmp1 == 9) | |
4770 | rptr->addend += (0xe << 6); | |
4771 | else | |
4772 | { | |
4773 | /* Get the two pieces. */ | |
4774 | tmp2 = tmp1 / 3; | |
4775 | tmp1 -= tmp2 * 3; | |
4776 | /* Put them in the addend. */ | |
4777 | rptr->addend += (tmp2 << 8) + (tmp1 << 6); | |
4778 | } | |
4779 | ||
4780 | /* What's left is the third part. It's unpacked | |
4781 | just like the second. */ | |
4782 | if (tmp == 9) | |
4783 | rptr->addend += (0xe << 2); | |
4784 | else | |
4785 | { | |
4786 | tmp2 = tmp / 3; | |
4787 | tmp -= tmp2 * 3; | |
4788 | rptr->addend += (tmp2 << 4) + (tmp << 2); | |
4789 | } | |
4790 | } | |
4791 | rptr->addend = HPPA_R_ADDEND (rptr->addend, 0); | |
4792 | } | |
4793 | break; | |
4794 | /* Handle the linker expression stack. */ | |
4795 | case 'O': | |
4796 | switch (op) | |
4797 | { | |
4798 | case R_COMP1: | |
4799 | subop = comp1_opcodes; | |
4800 | break; | |
4801 | case R_COMP2: | |
4802 | subop = comp2_opcodes; | |
4803 | break; | |
4804 | case R_COMP3: | |
4805 | subop = comp3_opcodes; | |
4806 | break; | |
4807 | default: | |
4808 | abort (); | |
4809 | } | |
4810 | while (*subop <= (unsigned char) c) | |
4811 | ++subop; | |
4812 | --subop; | |
4813 | break; | |
4814 | /* The lower 32unwind bits must be persistent. */ | |
4815 | case 'U': | |
4816 | saved_unwind_bits = var ('U'); | |
4817 | break; | |
4818 | ||
4819 | default: | |
4820 | break; | |
4821 | } | |
4822 | } | |
4823 | ||
4824 | /* If we used a previous fixup, clean up after it. */ | |
4825 | if (prev_fixup) | |
4826 | { | |
4827 | fixup = save_fixup + 1; | |
4828 | prev_fixup = 0; | |
4829 | } | |
4830 | /* Queue it. */ | |
4831 | else if (fixup > save_fixup + 1) | |
4832 | som_reloc_queue_insert (save_fixup, fixup - save_fixup, reloc_queue); | |
4833 | ||
6fa957a9 | 4834 | /* We do not pass R_DATA_OVERRIDE or R_NO_RELOCATION |
252b5132 RH |
4835 | fixups to BFD. */ |
4836 | if (som_hppa_howto_table[op].type != R_DATA_OVERRIDE | |
4837 | && som_hppa_howto_table[op].type != R_NO_RELOCATION) | |
4838 | { | |
4839 | /* Done with a single reloction. Loop back to the top. */ | |
4840 | if (! just_count) | |
4841 | { | |
4842 | if (som_hppa_howto_table[op].type == R_ENTRY) | |
4843 | rptr->addend = var ('T'); | |
4844 | else if (som_hppa_howto_table[op].type == R_EXIT) | |
4845 | rptr->addend = var ('U'); | |
4846 | else if (som_hppa_howto_table[op].type == R_PCREL_CALL | |
4847 | || som_hppa_howto_table[op].type == R_ABS_CALL) | |
4848 | ; | |
4849 | else if (som_hppa_howto_table[op].type == R_DATA_ONE_SYMBOL) | |
4850 | { | |
252b5132 RH |
4851 | /* Try what was specified in R_DATA_OVERRIDE first |
4852 | (if anything). Then the hard way using the | |
4853 | section contents. */ | |
4854 | rptr->addend = var ('V'); | |
4855 | ||
4856 | if (rptr->addend == 0 && !section->contents) | |
4857 | { | |
4858 | /* Got to read the damn contents first. We don't | |
4859 | bother saving the contents (yet). Add it one | |
4860 | day if the need arises. */ | |
4861 | section->contents = bfd_malloc (section->_raw_size); | |
4862 | if (section->contents == NULL) | |
4863 | return -1; | |
4864 | ||
4865 | deallocate_contents = 1; | |
4866 | bfd_get_section_contents (section->owner, | |
4867 | section, | |
4868 | section->contents, | |
4869 | 0, | |
4870 | section->_raw_size); | |
4871 | } | |
4872 | else if (rptr->addend == 0) | |
4873 | rptr->addend = bfd_get_32 (section->owner, | |
4874 | (section->contents | |
4875 | + offset - var ('L'))); | |
6fa957a9 | 4876 | |
252b5132 RH |
4877 | } |
4878 | else | |
4879 | rptr->addend = var ('V'); | |
4880 | rptr++; | |
4881 | } | |
4882 | count++; | |
4883 | /* Now that we've handled a "full" relocation, reset | |
4884 | some state. */ | |
4885 | memset (variables, 0, sizeof (variables)); | |
4886 | memset (stack, 0, sizeof (stack)); | |
4887 | } | |
4888 | } | |
4889 | if (deallocate_contents) | |
4890 | free (section->contents); | |
4891 | ||
4892 | return count; | |
4893 | ||
4894 | #undef var | |
4895 | #undef push | |
4896 | #undef pop | |
4897 | #undef emptystack | |
4898 | } | |
4899 | ||
6fa957a9 | 4900 | /* Read in the relocs (aka fixups in SOM terms) for a section. |
252b5132 | 4901 | |
6fa957a9 | 4902 | som_get_reloc_upper_bound calls this routine with JUST_COUNT |
252b5132 RH |
4903 | set to true to indicate it only needs a count of the number |
4904 | of actual relocations. */ | |
4905 | ||
4906 | static boolean | |
4907 | som_slurp_reloc_table (abfd, section, symbols, just_count) | |
4908 | bfd *abfd; | |
4909 | asection *section; | |
4910 | asymbol **symbols; | |
4911 | boolean just_count; | |
4912 | { | |
4913 | char *external_relocs; | |
4914 | unsigned int fixup_stream_size; | |
4915 | arelent *internal_relocs; | |
4916 | unsigned int num_relocs; | |
4917 | ||
4918 | fixup_stream_size = som_section_data (section)->reloc_size; | |
4919 | /* If there were no relocations, then there is nothing to do. */ | |
4920 | if (section->reloc_count == 0) | |
4921 | return true; | |
4922 | ||
6fa957a9 | 4923 | /* If reloc_count is -1, then the relocation stream has not been |
252b5132 RH |
4924 | parsed. We must do so now to know how many relocations exist. */ |
4925 | if (section->reloc_count == -1) | |
4926 | { | |
4927 | external_relocs = (char *) bfd_malloc (fixup_stream_size); | |
4928 | if (external_relocs == (char *) NULL) | |
4929 | return false; | |
6fa957a9 | 4930 | /* Read in the external forms. */ |
252b5132 RH |
4931 | if (bfd_seek (abfd, |
4932 | obj_som_reloc_filepos (abfd) + section->rel_filepos, | |
4933 | SEEK_SET) | |
4934 | != 0) | |
4935 | return false; | |
4936 | if (bfd_read (external_relocs, 1, fixup_stream_size, abfd) | |
4937 | != fixup_stream_size) | |
4938 | return false; | |
4939 | ||
4940 | /* Let callers know how many relocations found. | |
4941 | also save the relocation stream as we will | |
4942 | need it again. */ | |
4943 | section->reloc_count = som_set_reloc_info (external_relocs, | |
4944 | fixup_stream_size, | |
4945 | NULL, NULL, NULL, true); | |
4946 | ||
4947 | som_section_data (section)->reloc_stream = external_relocs; | |
4948 | } | |
4949 | ||
4950 | /* If the caller only wanted a count, then return now. */ | |
4951 | if (just_count) | |
4952 | return true; | |
4953 | ||
4954 | num_relocs = section->reloc_count; | |
4955 | external_relocs = som_section_data (section)->reloc_stream; | |
4956 | /* Return saved information about the relocations if it is available. */ | |
4957 | if (section->relocation != (arelent *) NULL) | |
4958 | return true; | |
4959 | ||
6fa957a9 | 4960 | internal_relocs = (arelent *) |
252b5132 RH |
4961 | bfd_zalloc (abfd, (num_relocs * sizeof (arelent))); |
4962 | if (internal_relocs == (arelent *) NULL) | |
4963 | return false; | |
4964 | ||
4965 | /* Process and internalize the relocations. */ | |
4966 | som_set_reloc_info (external_relocs, fixup_stream_size, | |
4967 | internal_relocs, section, symbols, false); | |
4968 | ||
4969 | /* We're done with the external relocations. Free them. */ | |
4970 | free (external_relocs); | |
4971 | som_section_data (section)->reloc_stream = NULL; | |
4972 | ||
4973 | /* Save our results and return success. */ | |
4974 | section->relocation = internal_relocs; | |
4975 | return (true); | |
4976 | } | |
4977 | ||
4978 | /* Return the number of bytes required to store the relocation | |
6fa957a9 | 4979 | information associated with the given section. */ |
252b5132 RH |
4980 | |
4981 | static long | |
4982 | som_get_reloc_upper_bound (abfd, asect) | |
4983 | bfd *abfd; | |
4984 | sec_ptr asect; | |
4985 | { | |
4986 | /* If section has relocations, then read in the relocation stream | |
4987 | and parse it to determine how many relocations exist. */ | |
4988 | if (asect->flags & SEC_RELOC) | |
4989 | { | |
4990 | if (! som_slurp_reloc_table (abfd, asect, NULL, true)) | |
4991 | return -1; | |
4992 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
4993 | } | |
4994 | /* There are no relocations. */ | |
4995 | return 0; | |
4996 | } | |
4997 | ||
4998 | /* Convert relocations from SOM (external) form into BFD internal | |
4999 | form. Return the number of relocations. */ | |
5000 | ||
5001 | static long | |
5002 | som_canonicalize_reloc (abfd, section, relptr, symbols) | |
5003 | bfd *abfd; | |
5004 | sec_ptr section; | |
5005 | arelent **relptr; | |
5006 | asymbol **symbols; | |
5007 | { | |
5008 | arelent *tblptr; | |
5009 | int count; | |
5010 | ||
5011 | if (som_slurp_reloc_table (abfd, section, symbols, false) == false) | |
5012 | return -1; | |
5013 | ||
5014 | count = section->reloc_count; | |
5015 | tblptr = section->relocation; | |
5016 | ||
5017 | while (count--) | |
5018 | *relptr++ = tblptr++; | |
5019 | ||
5020 | *relptr = (arelent *) NULL; | |
5021 | return section->reloc_count; | |
5022 | } | |
5023 | ||
5024 | extern const bfd_target som_vec; | |
5025 | ||
5026 | /* A hook to set up object file dependent section information. */ | |
5027 | ||
5028 | static boolean | |
5029 | som_new_section_hook (abfd, newsect) | |
5030 | bfd *abfd; | |
5031 | asection *newsect; | |
5032 | { | |
5033 | newsect->used_by_bfd = | |
5034 | (PTR) bfd_zalloc (abfd, sizeof (struct som_section_data_struct)); | |
5035 | if (!newsect->used_by_bfd) | |
5036 | return false; | |
5037 | newsect->alignment_power = 3; | |
5038 | ||
5039 | /* We allow more than three sections internally */ | |
5040 | return true; | |
5041 | } | |
5042 | ||
5043 | /* Copy any private info we understand from the input symbol | |
5044 | to the output symbol. */ | |
5045 | ||
5046 | static boolean | |
5047 | som_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol) | |
5048 | bfd *ibfd; | |
5049 | asymbol *isymbol; | |
5050 | bfd *obfd; | |
5051 | asymbol *osymbol; | |
5052 | { | |
5053 | struct som_symbol *input_symbol = (struct som_symbol *) isymbol; | |
5054 | struct som_symbol *output_symbol = (struct som_symbol *) osymbol; | |
5055 | ||
5056 | /* One day we may try to grok other private data. */ | |
5057 | if (ibfd->xvec->flavour != bfd_target_som_flavour | |
5058 | || obfd->xvec->flavour != bfd_target_som_flavour) | |
5059 | return false; | |
5060 | ||
5061 | /* The only private information we need to copy is the argument relocation | |
5062 | bits. */ | |
5063 | output_symbol->tc_data.ap.hppa_arg_reloc = | |
5064 | input_symbol->tc_data.ap.hppa_arg_reloc; | |
5065 | ||
5066 | return true; | |
5067 | } | |
5068 | ||
5069 | /* Copy any private info we understand from the input section | |
5070 | to the output section. */ | |
5071 | static boolean | |
5072 | som_bfd_copy_private_section_data (ibfd, isection, obfd, osection) | |
5073 | bfd *ibfd; | |
5074 | asection *isection; | |
5075 | bfd *obfd; | |
5076 | asection *osection; | |
5077 | { | |
5078 | /* One day we may try to grok other private data. */ | |
5079 | if (ibfd->xvec->flavour != bfd_target_som_flavour | |
5080 | || obfd->xvec->flavour != bfd_target_som_flavour | |
5081 | || (!som_is_space (isection) && !som_is_subspace (isection))) | |
5082 | return true; | |
5083 | ||
5084 | som_section_data (osection)->copy_data | |
5085 | = (struct som_copyable_section_data_struct *) | |
5086 | bfd_zalloc (obfd, sizeof (struct som_copyable_section_data_struct)); | |
5087 | if (som_section_data (osection)->copy_data == NULL) | |
5088 | return false; | |
5089 | ||
5090 | memcpy (som_section_data (osection)->copy_data, | |
5091 | som_section_data (isection)->copy_data, | |
5092 | sizeof (struct som_copyable_section_data_struct)); | |
5093 | ||
5094 | /* Reparent if necessary. */ | |
5095 | if (som_section_data (osection)->copy_data->container) | |
5096 | som_section_data (osection)->copy_data->container = | |
5097 | som_section_data (osection)->copy_data->container->output_section; | |
5098 | ||
5099 | return true; | |
5100 | } | |
5101 | ||
5102 | /* Copy any private info we understand from the input bfd | |
5103 | to the output bfd. */ | |
5104 | ||
5105 | static boolean | |
5106 | som_bfd_copy_private_bfd_data (ibfd, obfd) | |
5107 | bfd *ibfd, *obfd; | |
5108 | { | |
5109 | /* One day we may try to grok other private data. */ | |
5110 | if (ibfd->xvec->flavour != bfd_target_som_flavour | |
5111 | || obfd->xvec->flavour != bfd_target_som_flavour) | |
5112 | return true; | |
5113 | ||
5114 | /* Allocate some memory to hold the data we need. */ | |
5115 | obj_som_exec_data (obfd) = (struct som_exec_data *) | |
5116 | bfd_zalloc (obfd, sizeof (struct som_exec_data)); | |
5117 | if (obj_som_exec_data (obfd) == NULL) | |
5118 | return false; | |
5119 | ||
5120 | /* Now copy the data. */ | |
5121 | memcpy (obj_som_exec_data (obfd), obj_som_exec_data (ibfd), | |
5122 | sizeof (struct som_exec_data)); | |
5123 | ||
5124 | return true; | |
5125 | } | |
5126 | ||
5127 | /* Set backend info for sections which can not be described | |
5128 | in the BFD data structures. */ | |
5129 | ||
5130 | boolean | |
5131 | bfd_som_set_section_attributes (section, defined, private, sort_key, spnum) | |
5132 | asection *section; | |
5133 | int defined; | |
5134 | int private; | |
5135 | unsigned int sort_key; | |
5136 | int spnum; | |
5137 | { | |
5138 | /* Allocate memory to hold the magic information. */ | |
5139 | if (som_section_data (section)->copy_data == NULL) | |
5140 | { | |
5141 | som_section_data (section)->copy_data | |
5142 | = (struct som_copyable_section_data_struct *) | |
5143 | bfd_zalloc (section->owner, | |
5144 | sizeof (struct som_copyable_section_data_struct)); | |
5145 | if (som_section_data (section)->copy_data == NULL) | |
5146 | return false; | |
5147 | } | |
5148 | som_section_data (section)->copy_data->sort_key = sort_key; | |
5149 | som_section_data (section)->copy_data->is_defined = defined; | |
5150 | som_section_data (section)->copy_data->is_private = private; | |
5151 | som_section_data (section)->copy_data->container = section; | |
5152 | som_section_data (section)->copy_data->space_number = spnum; | |
5153 | return true; | |
5154 | } | |
5155 | ||
6fa957a9 | 5156 | /* Set backend info for subsections which can not be described |
252b5132 RH |
5157 | in the BFD data structures. */ |
5158 | ||
5159 | boolean | |
5160 | bfd_som_set_subsection_attributes (section, container, access, | |
5161 | sort_key, quadrant) | |
5162 | asection *section; | |
5163 | asection *container; | |
5164 | int access; | |
5165 | unsigned int sort_key; | |
5166 | int quadrant; | |
5167 | { | |
5168 | /* Allocate memory to hold the magic information. */ | |
5169 | if (som_section_data (section)->copy_data == NULL) | |
5170 | { | |
5171 | som_section_data (section)->copy_data | |
5172 | = (struct som_copyable_section_data_struct *) | |
5173 | bfd_zalloc (section->owner, | |
5174 | sizeof (struct som_copyable_section_data_struct)); | |
5175 | if (som_section_data (section)->copy_data == NULL) | |
5176 | return false; | |
5177 | } | |
5178 | som_section_data (section)->copy_data->sort_key = sort_key; | |
5179 | som_section_data (section)->copy_data->access_control_bits = access; | |
5180 | som_section_data (section)->copy_data->quadrant = quadrant; | |
5181 | som_section_data (section)->copy_data->container = container; | |
5182 | return true; | |
5183 | } | |
5184 | ||
5185 | /* Set the full SOM symbol type. SOM needs far more symbol information | |
5186 | than any other object file format I'm aware of. It is mandatory | |
5187 | to be able to know if a symbol is an entry point, millicode, data, | |
5188 | code, absolute, storage request, or procedure label. If you get | |
5189 | the symbol type wrong your program will not link. */ | |
5190 | ||
5191 | void | |
5192 | bfd_som_set_symbol_type (symbol, type) | |
5193 | asymbol *symbol; | |
5194 | unsigned int type; | |
5195 | { | |
5196 | som_symbol_data (symbol)->som_type = type; | |
5197 | } | |
5198 | ||
5199 | /* Attach an auxiliary header to the BFD backend so that it may be | |
5200 | written into the object file. */ | |
5201 | boolean | |
5202 | bfd_som_attach_aux_hdr (abfd, type, string) | |
5203 | bfd *abfd; | |
5204 | int type; | |
5205 | char *string; | |
5206 | { | |
5207 | if (type == VERSION_AUX_ID) | |
5208 | { | |
5209 | int len = strlen (string); | |
5210 | int pad = 0; | |
5211 | ||
5212 | if (len % 4) | |
5213 | pad = (4 - (len % 4)); | |
5214 | obj_som_version_hdr (abfd) = (struct user_string_aux_hdr *) | |
5215 | bfd_zalloc (abfd, sizeof (struct aux_id) | |
5216 | + sizeof (unsigned int) + len + pad); | |
5217 | if (!obj_som_version_hdr (abfd)) | |
5218 | return false; | |
5219 | obj_som_version_hdr (abfd)->header_id.type = VERSION_AUX_ID; | |
5220 | obj_som_version_hdr (abfd)->header_id.length = len + pad; | |
5221 | obj_som_version_hdr (abfd)->header_id.length += sizeof (int); | |
5222 | obj_som_version_hdr (abfd)->string_length = len; | |
5223 | strncpy (obj_som_version_hdr (abfd)->user_string, string, len); | |
5224 | } | |
5225 | else if (type == COPYRIGHT_AUX_ID) | |
5226 | { | |
5227 | int len = strlen (string); | |
5228 | int pad = 0; | |
5229 | ||
5230 | if (len % 4) | |
5231 | pad = (4 - (len % 4)); | |
5232 | obj_som_copyright_hdr (abfd) = (struct copyright_aux_hdr *) | |
5233 | bfd_zalloc (abfd, sizeof (struct aux_id) | |
5234 | + sizeof (unsigned int) + len + pad); | |
5235 | if (!obj_som_copyright_hdr (abfd)) | |
5236 | return false; | |
5237 | obj_som_copyright_hdr (abfd)->header_id.type = COPYRIGHT_AUX_ID; | |
5238 | obj_som_copyright_hdr (abfd)->header_id.length = len + pad; | |
5239 | obj_som_copyright_hdr (abfd)->header_id.length += sizeof (int); | |
5240 | obj_som_copyright_hdr (abfd)->string_length = len; | |
5241 | strcpy (obj_som_copyright_hdr (abfd)->copyright, string); | |
5242 | } | |
5243 | return true; | |
5244 | } | |
5245 | ||
5246 | /* Attach an compilation unit header to the BFD backend so that it may be | |
5247 | written into the object file. */ | |
5248 | ||
5249 | boolean | |
5250 | bfd_som_attach_compilation_unit (abfd, name, language_name, product_id, | |
5251 | version_id) | |
5252 | bfd *abfd; | |
5253 | const char *name; | |
5254 | const char *language_name; | |
5255 | const char *product_id; | |
5256 | const char *version_id; | |
5257 | { | |
5258 | COMPUNIT *n = (COMPUNIT *) bfd_zalloc (abfd, COMPUNITSZ); | |
5259 | if (n == NULL) | |
5260 | return false; | |
5261 | ||
5262 | #define STRDUP(f) \ | |
5263 | if (f != NULL) \ | |
5264 | { \ | |
5265 | n->f.n_name = bfd_alloc (abfd, strlen (f) + 1); \ | |
5266 | if (n->f.n_name == NULL) \ | |
5267 | return false; \ | |
5268 | strcpy (n->f.n_name, f); \ | |
5269 | } | |
5270 | ||
5271 | STRDUP (name); | |
5272 | STRDUP (language_name); | |
5273 | STRDUP (product_id); | |
5274 | STRDUP (version_id); | |
5275 | ||
5276 | #undef STRDUP | |
5277 | ||
5278 | obj_som_compilation_unit (abfd) = n; | |
5279 | ||
5280 | return true; | |
5281 | } | |
5282 | ||
5283 | static boolean | |
5284 | som_get_section_contents (abfd, section, location, offset, count) | |
5285 | bfd *abfd; | |
5286 | sec_ptr section; | |
5287 | PTR location; | |
5288 | file_ptr offset; | |
5289 | bfd_size_type count; | |
5290 | { | |
5291 | if (count == 0 || ((section->flags & SEC_HAS_CONTENTS) == 0)) | |
5292 | return true; | |
6fa957a9 KH |
5293 | if ((bfd_size_type) (offset+count) > section->_raw_size |
5294 | || bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) == -1 | |
252b5132 RH |
5295 | || bfd_read (location, (bfd_size_type)1, count, abfd) != count) |
5296 | return (false); /* on error */ | |
5297 | return (true); | |
5298 | } | |
5299 | ||
5300 | static boolean | |
5301 | som_set_section_contents (abfd, section, location, offset, count) | |
5302 | bfd *abfd; | |
5303 | sec_ptr section; | |
5304 | PTR location; | |
5305 | file_ptr offset; | |
5306 | bfd_size_type count; | |
5307 | { | |
5308 | if (abfd->output_has_begun == false) | |
5309 | { | |
5310 | /* Set up fixed parts of the file, space, and subspace headers. | |
5311 | Notify the world that output has begun. */ | |
5312 | som_prep_headers (abfd); | |
5313 | abfd->output_has_begun = true; | |
5314 | /* Start writing the object file. This include all the string | |
5315 | tables, fixup streams, and other portions of the object file. */ | |
5316 | som_begin_writing (abfd); | |
5317 | } | |
5318 | ||
5319 | /* Only write subspaces which have "real" contents (eg. the contents | |
5320 | are not generated at run time by the OS). */ | |
5321 | if (!som_is_subspace (section) | |
5322 | || ((section->flags & SEC_HAS_CONTENTS) == 0)) | |
5323 | return true; | |
5324 | ||
5325 | /* Seek to the proper offset within the object file and write the | |
5326 | data. */ | |
6fa957a9 | 5327 | offset += som_section_data (section)->subspace_dict->file_loc_init_value; |
252b5132 RH |
5328 | if (bfd_seek (abfd, offset, SEEK_SET) == -1) |
5329 | return false; | |
5330 | ||
5331 | if (bfd_write ((PTR) location, 1, count, abfd) != count) | |
5332 | return false; | |
5333 | return true; | |
5334 | } | |
5335 | ||
5336 | static boolean | |
5337 | som_set_arch_mach (abfd, arch, machine) | |
5338 | bfd *abfd; | |
5339 | enum bfd_architecture arch; | |
5340 | unsigned long machine; | |
5341 | { | |
5342 | /* Allow any architecture to be supported by the SOM backend */ | |
5343 | return bfd_default_set_arch_mach (abfd, arch, machine); | |
5344 | } | |
5345 | ||
5346 | static boolean | |
5347 | som_find_nearest_line (abfd, section, symbols, offset, filename_ptr, | |
5348 | functionname_ptr, line_ptr) | |
7dca057b JL |
5349 | bfd *abfd ATTRIBUTE_UNUSED; |
5350 | asection *section ATTRIBUTE_UNUSED; | |
5351 | asymbol **symbols ATTRIBUTE_UNUSED; | |
5352 | bfd_vma offset ATTRIBUTE_UNUSED; | |
5353 | CONST char **filename_ptr ATTRIBUTE_UNUSED; | |
5354 | CONST char **functionname_ptr ATTRIBUTE_UNUSED; | |
5355 | unsigned int *line_ptr ATTRIBUTE_UNUSED; | |
252b5132 RH |
5356 | { |
5357 | return (false); | |
5358 | } | |
5359 | ||
5360 | static int | |
5361 | som_sizeof_headers (abfd, reloc) | |
7dca057b JL |
5362 | bfd *abfd ATTRIBUTE_UNUSED; |
5363 | boolean reloc ATTRIBUTE_UNUSED; | |
252b5132 RH |
5364 | { |
5365 | (*_bfd_error_handler) (_("som_sizeof_headers unimplemented")); | |
5366 | fflush (stderr); | |
5367 | abort (); | |
5368 | return (0); | |
5369 | } | |
5370 | ||
5371 | /* Return the single-character symbol type corresponding to | |
5372 | SOM section S, or '?' for an unknown SOM section. */ | |
5373 | ||
5374 | static char | |
5375 | som_section_type (s) | |
5376 | const char *s; | |
5377 | { | |
5378 | const struct section_to_type *t; | |
5379 | ||
5380 | for (t = &stt[0]; t->section; t++) | |
5381 | if (!strcmp (s, t->section)) | |
5382 | return t->type; | |
5383 | return '?'; | |
5384 | } | |
5385 | ||
5386 | static int | |
5387 | som_decode_symclass (symbol) | |
5388 | asymbol *symbol; | |
5389 | { | |
5390 | char c; | |
5391 | ||
5392 | if (bfd_is_com_section (symbol->section)) | |
5393 | return 'C'; | |
5394 | if (bfd_is_und_section (symbol->section)) | |
5395 | return 'U'; | |
5396 | if (bfd_is_ind_section (symbol->section)) | |
5397 | return 'I'; | |
10febd84 CM |
5398 | if (symbol->flags & BSF_WEAK) |
5399 | return 'W'; | |
252b5132 RH |
5400 | if (!(symbol->flags & (BSF_GLOBAL|BSF_LOCAL))) |
5401 | return '?'; | |
5402 | ||
5403 | if (bfd_is_abs_section (symbol->section) | |
5404 | || (som_symbol_data (symbol) != NULL | |
5405 | && som_symbol_data (symbol)->som_type == SYMBOL_TYPE_ABSOLUTE)) | |
5406 | c = 'a'; | |
5407 | else if (symbol->section) | |
5408 | c = som_section_type (symbol->section->name); | |
5409 | else | |
5410 | return '?'; | |
5411 | if (symbol->flags & BSF_GLOBAL) | |
5412 | c = toupper (c); | |
5413 | return c; | |
5414 | } | |
5415 | ||
5416 | /* Return information about SOM symbol SYMBOL in RET. */ | |
5417 | ||
5418 | static void | |
5419 | som_get_symbol_info (ignore_abfd, symbol, ret) | |
7dca057b | 5420 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
5421 | asymbol *symbol; |
5422 | symbol_info *ret; | |
5423 | { | |
5424 | ret->type = som_decode_symclass (symbol); | |
5425 | if (ret->type != 'U') | |
5426 | ret->value = symbol->value+symbol->section->vma; | |
5427 | else | |
5428 | ret->value = 0; | |
5429 | ret->name = symbol->name; | |
5430 | } | |
5431 | ||
5432 | /* Count the number of symbols in the archive symbol table. Necessary | |
5433 | so that we can allocate space for all the carsyms at once. */ | |
5434 | ||
5435 | static boolean | |
5436 | som_bfd_count_ar_symbols (abfd, lst_header, count) | |
5437 | bfd *abfd; | |
5438 | struct lst_header *lst_header; | |
5439 | symindex *count; | |
5440 | { | |
5441 | unsigned int i; | |
5442 | unsigned int *hash_table = NULL; | |
5443 | file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header); | |
5444 | ||
6fa957a9 | 5445 | hash_table = |
252b5132 RH |
5446 | (unsigned int *) bfd_malloc (lst_header->hash_size |
5447 | * sizeof (unsigned int)); | |
5448 | if (hash_table == NULL && lst_header->hash_size != 0) | |
5449 | goto error_return; | |
5450 | ||
5451 | /* Don't forget to initialize the counter! */ | |
5452 | *count = 0; | |
5453 | ||
5454 | /* Read in the hash table. The has table is an array of 32bit file offsets | |
5455 | which point to the hash chains. */ | |
5456 | if (bfd_read ((PTR) hash_table, lst_header->hash_size, 4, abfd) | |
5457 | != lst_header->hash_size * 4) | |
5458 | goto error_return; | |
5459 | ||
5460 | /* Walk each chain counting the number of symbols found on that particular | |
5461 | chain. */ | |
5462 | for (i = 0; i < lst_header->hash_size; i++) | |
5463 | { | |
5464 | struct lst_symbol_record lst_symbol; | |
5465 | ||
5466 | /* An empty chain has zero as it's file offset. */ | |
5467 | if (hash_table[i] == 0) | |
5468 | continue; | |
5469 | ||
5470 | /* Seek to the first symbol in this hash chain. */ | |
5471 | if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) < 0) | |
5472 | goto error_return; | |
5473 | ||
5474 | /* Read in this symbol and update the counter. */ | |
5475 | if (bfd_read ((PTR) & lst_symbol, 1, sizeof (lst_symbol), abfd) | |
5476 | != sizeof (lst_symbol)) | |
5477 | goto error_return; | |
5478 | ||
5479 | (*count)++; | |
5480 | ||
5481 | /* Now iterate through the rest of the symbols on this chain. */ | |
5482 | while (lst_symbol.next_entry) | |
5483 | { | |
5484 | ||
5485 | /* Seek to the next symbol. */ | |
5486 | if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET) | |
5487 | < 0) | |
5488 | goto error_return; | |
5489 | ||
5490 | /* Read the symbol in and update the counter. */ | |
5491 | if (bfd_read ((PTR) & lst_symbol, 1, sizeof (lst_symbol), abfd) | |
5492 | != sizeof (lst_symbol)) | |
5493 | goto error_return; | |
5494 | ||
5495 | (*count)++; | |
5496 | } | |
5497 | } | |
5498 | if (hash_table != NULL) | |
5499 | free (hash_table); | |
5500 | return true; | |
5501 | ||
5502 | error_return: | |
5503 | if (hash_table != NULL) | |
5504 | free (hash_table); | |
5505 | return false; | |
5506 | } | |
5507 | ||
5508 | /* Fill in the canonical archive symbols (SYMS) from the archive described | |
5509 | by ABFD and LST_HEADER. */ | |
5510 | ||
5511 | static boolean | |
5512 | som_bfd_fill_in_ar_symbols (abfd, lst_header, syms) | |
5513 | bfd *abfd; | |
5514 | struct lst_header *lst_header; | |
5515 | carsym **syms; | |
5516 | { | |
5517 | unsigned int i, len; | |
5518 | carsym *set = syms[0]; | |
5519 | unsigned int *hash_table = NULL; | |
5520 | struct som_entry *som_dict = NULL; | |
5521 | file_ptr lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header); | |
5522 | ||
6fa957a9 | 5523 | hash_table = |
252b5132 RH |
5524 | (unsigned int *) bfd_malloc (lst_header->hash_size |
5525 | * sizeof (unsigned int)); | |
5526 | if (hash_table == NULL && lst_header->hash_size != 0) | |
5527 | goto error_return; | |
5528 | ||
5529 | som_dict = | |
5530 | (struct som_entry *) bfd_malloc (lst_header->module_count | |
5531 | * sizeof (struct som_entry)); | |
5532 | if (som_dict == NULL && lst_header->module_count != 0) | |
5533 | goto error_return; | |
5534 | ||
5535 | /* Read in the hash table. The has table is an array of 32bit file offsets | |
5536 | which point to the hash chains. */ | |
5537 | if (bfd_read ((PTR) hash_table, lst_header->hash_size, 4, abfd) | |
5538 | != lst_header->hash_size * 4) | |
5539 | goto error_return; | |
5540 | ||
5541 | /* Seek to and read in the SOM dictionary. We will need this to fill | |
5542 | in the carsym's filepos field. */ | |
5543 | if (bfd_seek (abfd, lst_filepos + lst_header->dir_loc, SEEK_SET) < 0) | |
5544 | goto error_return; | |
5545 | ||
6fa957a9 | 5546 | if (bfd_read ((PTR) som_dict, lst_header->module_count, |
252b5132 RH |
5547 | sizeof (struct som_entry), abfd) |
5548 | != lst_header->module_count * sizeof (struct som_entry)) | |
5549 | goto error_return; | |
5550 | ||
5551 | /* Walk each chain filling in the carsyms as we go along. */ | |
5552 | for (i = 0; i < lst_header->hash_size; i++) | |
5553 | { | |
5554 | struct lst_symbol_record lst_symbol; | |
5555 | ||
5556 | /* An empty chain has zero as it's file offset. */ | |
5557 | if (hash_table[i] == 0) | |
5558 | continue; | |
5559 | ||
5560 | /* Seek to and read the first symbol on the chain. */ | |
5561 | if (bfd_seek (abfd, lst_filepos + hash_table[i], SEEK_SET) < 0) | |
5562 | goto error_return; | |
5563 | ||
5564 | if (bfd_read ((PTR) & lst_symbol, 1, sizeof (lst_symbol), abfd) | |
5565 | != sizeof (lst_symbol)) | |
5566 | goto error_return; | |
5567 | ||
5568 | /* Get the name of the symbol, first get the length which is stored | |
5569 | as a 32bit integer just before the symbol. | |
5570 | ||
5571 | One might ask why we don't just read in the entire string table | |
5572 | and index into it. Well, according to the SOM ABI the string | |
5573 | index can point *anywhere* in the archive to save space, so just | |
5574 | using the string table would not be safe. */ | |
5575 | if (bfd_seek (abfd, lst_filepos + lst_header->string_loc | |
5576 | + lst_symbol.name.n_strx - 4, SEEK_SET) < 0) | |
5577 | goto error_return; | |
5578 | ||
5579 | if (bfd_read (&len, 1, 4, abfd) != 4) | |
5580 | goto error_return; | |
5581 | ||
5582 | /* Allocate space for the name and null terminate it too. */ | |
5583 | set->name = bfd_zalloc (abfd, len + 1); | |
5584 | if (!set->name) | |
5585 | goto error_return; | |
5586 | if (bfd_read (set->name, 1, len, abfd) != len) | |
5587 | goto error_return; | |
5588 | ||
5589 | set->name[len] = 0; | |
5590 | ||
5591 | /* Fill in the file offset. Note that the "location" field points | |
5592 | to the SOM itself, not the ar_hdr in front of it. */ | |
5593 | set->file_offset = som_dict[lst_symbol.som_index].location | |
5594 | - sizeof (struct ar_hdr); | |
5595 | ||
5596 | /* Go to the next symbol. */ | |
5597 | set++; | |
5598 | ||
5599 | /* Iterate through the rest of the chain. */ | |
5600 | while (lst_symbol.next_entry) | |
5601 | { | |
5602 | /* Seek to the next symbol and read it in. */ | |
5603 | if (bfd_seek (abfd, lst_filepos + lst_symbol.next_entry, SEEK_SET) <0) | |
5604 | goto error_return; | |
5605 | ||
5606 | if (bfd_read ((PTR) & lst_symbol, 1, sizeof (lst_symbol), abfd) | |
5607 | != sizeof (lst_symbol)) | |
5608 | goto error_return; | |
5609 | ||
5610 | /* Seek to the name length & string and read them in. */ | |
6fa957a9 | 5611 | if (bfd_seek (abfd, lst_filepos + lst_header->string_loc |
252b5132 RH |
5612 | + lst_symbol.name.n_strx - 4, SEEK_SET) < 0) |
5613 | goto error_return; | |
5614 | ||
5615 | if (bfd_read (&len, 1, 4, abfd) != 4) | |
5616 | goto error_return; | |
5617 | ||
5618 | /* Allocate space for the name and null terminate it too. */ | |
5619 | set->name = bfd_zalloc (abfd, len + 1); | |
5620 | if (!set->name) | |
5621 | goto error_return; | |
5622 | ||
5623 | if (bfd_read (set->name, 1, len, abfd) != len) | |
5624 | goto error_return; | |
5625 | set->name[len] = 0; | |
5626 | ||
5627 | /* Fill in the file offset. Note that the "location" field points | |
5628 | to the SOM itself, not the ar_hdr in front of it. */ | |
5629 | set->file_offset = som_dict[lst_symbol.som_index].location | |
5630 | - sizeof (struct ar_hdr); | |
5631 | ||
5632 | /* Go on to the next symbol. */ | |
5633 | set++; | |
5634 | } | |
5635 | } | |
6fa957a9 | 5636 | /* If we haven't died by now, then we successfully read the entire |
252b5132 RH |
5637 | archive symbol table. */ |
5638 | if (hash_table != NULL) | |
5639 | free (hash_table); | |
5640 | if (som_dict != NULL) | |
5641 | free (som_dict); | |
5642 | return true; | |
5643 | ||
5644 | error_return: | |
5645 | if (hash_table != NULL) | |
5646 | free (hash_table); | |
5647 | if (som_dict != NULL) | |
5648 | free (som_dict); | |
5649 | return false; | |
5650 | } | |
5651 | ||
5652 | /* Read in the LST from the archive. */ | |
5653 | static boolean | |
5654 | som_slurp_armap (abfd) | |
5655 | bfd *abfd; | |
5656 | { | |
5657 | struct lst_header lst_header; | |
5658 | struct ar_hdr ar_header; | |
5659 | unsigned int parsed_size; | |
5660 | struct artdata *ardata = bfd_ardata (abfd); | |
5661 | char nextname[17]; | |
5662 | int i = bfd_read ((PTR) nextname, 1, 16, abfd); | |
5663 | ||
5664 | /* Special cases. */ | |
5665 | if (i == 0) | |
5666 | return true; | |
5667 | if (i != 16) | |
5668 | return false; | |
5669 | ||
5670 | if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) < 0) | |
5671 | return false; | |
5672 | ||
5673 | /* For archives without .o files there is no symbol table. */ | |
5674 | if (strncmp (nextname, "/ ", 16)) | |
5675 | { | |
5676 | bfd_has_map (abfd) = false; | |
5677 | return true; | |
5678 | } | |
5679 | ||
5680 | /* Read in and sanity check the archive header. */ | |
5681 | if (bfd_read ((PTR) &ar_header, 1, sizeof (struct ar_hdr), abfd) | |
5682 | != sizeof (struct ar_hdr)) | |
5683 | return false; | |
5684 | ||
5685 | if (strncmp (ar_header.ar_fmag, ARFMAG, 2)) | |
5686 | { | |
5687 | bfd_set_error (bfd_error_malformed_archive); | |
5688 | return false; | |
5689 | } | |
5690 | ||
5691 | /* How big is the archive symbol table entry? */ | |
5692 | errno = 0; | |
5693 | parsed_size = strtol (ar_header.ar_size, NULL, 10); | |
5694 | if (errno != 0) | |
5695 | { | |
5696 | bfd_set_error (bfd_error_malformed_archive); | |
5697 | return false; | |
5698 | } | |
5699 | ||
5700 | /* Save off the file offset of the first real user data. */ | |
5701 | ardata->first_file_filepos = bfd_tell (abfd) + parsed_size; | |
5702 | ||
5703 | /* Read in the library symbol table. We'll make heavy use of this | |
5704 | in just a minute. */ | |
5705 | if (bfd_read ((PTR) & lst_header, 1, sizeof (struct lst_header), abfd) | |
5706 | != sizeof (struct lst_header)) | |
5707 | return false; | |
5708 | ||
5709 | /* Sanity check. */ | |
5710 | if (lst_header.a_magic != LIBMAGIC) | |
5711 | { | |
5712 | bfd_set_error (bfd_error_malformed_archive); | |
5713 | return false; | |
5714 | } | |
5715 | ||
5716 | /* Count the number of symbols in the library symbol table. */ | |
5717 | if (som_bfd_count_ar_symbols (abfd, &lst_header, &ardata->symdef_count) | |
5718 | == false) | |
5719 | return false; | |
5720 | ||
5721 | /* Get back to the start of the library symbol table. */ | |
6fa957a9 | 5722 | if (bfd_seek (abfd, ardata->first_file_filepos - parsed_size |
252b5132 RH |
5723 | + sizeof (struct lst_header), SEEK_SET) < 0) |
5724 | return false; | |
5725 | ||
5726 | /* Initializae the cache and allocate space for the library symbols. */ | |
5727 | ardata->cache = 0; | |
5728 | ardata->symdefs = (carsym *) bfd_alloc (abfd, | |
5729 | (ardata->symdef_count | |
5730 | * sizeof (carsym))); | |
5731 | if (!ardata->symdefs) | |
5732 | return false; | |
5733 | ||
5734 | /* Now fill in the canonical archive symbols. */ | |
5735 | if (som_bfd_fill_in_ar_symbols (abfd, &lst_header, &ardata->symdefs) | |
5736 | == false) | |
5737 | return false; | |
5738 | ||
5739 | /* Seek back to the "first" file in the archive. Note the "first" | |
5740 | file may be the extended name table. */ | |
5741 | if (bfd_seek (abfd, ardata->first_file_filepos, SEEK_SET) < 0) | |
5742 | return false; | |
5743 | ||
5744 | /* Notify the generic archive code that we have a symbol map. */ | |
5745 | bfd_has_map (abfd) = true; | |
5746 | return true; | |
5747 | } | |
5748 | ||
5749 | /* Begin preparing to write a SOM library symbol table. | |
5750 | ||
5751 | As part of the prep work we need to determine the number of symbols | |
5752 | and the size of the associated string section. */ | |
5753 | ||
5754 | static boolean | |
5755 | som_bfd_prep_for_ar_write (abfd, num_syms, stringsize) | |
5756 | bfd *abfd; | |
5757 | unsigned int *num_syms, *stringsize; | |
5758 | { | |
5759 | bfd *curr_bfd = abfd->archive_head; | |
5760 | ||
5761 | /* Some initialization. */ | |
5762 | *num_syms = 0; | |
5763 | *stringsize = 0; | |
5764 | ||
5765 | /* Iterate over each BFD within this archive. */ | |
5766 | while (curr_bfd != NULL) | |
5767 | { | |
5768 | unsigned int curr_count, i; | |
5769 | som_symbol_type *sym; | |
5770 | ||
5771 | /* Don't bother for non-SOM objects. */ | |
5772 | if (curr_bfd->format != bfd_object | |
5773 | || curr_bfd->xvec->flavour != bfd_target_som_flavour) | |
5774 | { | |
5775 | curr_bfd = curr_bfd->next; | |
5776 | continue; | |
5777 | } | |
5778 | ||
5779 | /* Make sure the symbol table has been read, then snag a pointer | |
5780 | to it. It's a little slimey to grab the symbols via obj_som_symtab, | |
5781 | but doing so avoids allocating lots of extra memory. */ | |
5782 | if (som_slurp_symbol_table (curr_bfd) == false) | |
5783 | return false; | |
5784 | ||
5785 | sym = obj_som_symtab (curr_bfd); | |
5786 | curr_count = bfd_get_symcount (curr_bfd); | |
5787 | ||
5788 | /* Examine each symbol to determine if it belongs in the | |
5789 | library symbol table. */ | |
5790 | for (i = 0; i < curr_count; i++, sym++) | |
5791 | { | |
5792 | struct som_misc_symbol_info info; | |
5793 | ||
5794 | /* Derive SOM information from the BFD symbol. */ | |
5795 | som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info); | |
5796 | ||
5797 | /* Should we include this symbol? */ | |
5798 | if (info.symbol_type == ST_NULL | |
5799 | || info.symbol_type == ST_SYM_EXT | |
5800 | || info.symbol_type == ST_ARG_EXT) | |
5801 | continue; | |
5802 | ||
5803 | /* Only global symbols and unsatisfied commons. */ | |
5804 | if (info.symbol_scope != SS_UNIVERSAL | |
5805 | && info.symbol_type != ST_STORAGE) | |
5806 | continue; | |
5807 | ||
5808 | /* Do no include undefined symbols. */ | |
5809 | if (bfd_is_und_section (sym->symbol.section)) | |
5810 | continue; | |
5811 | ||
5812 | /* Bump the various counters, being careful to honor | |
5813 | alignment considerations in the string table. */ | |
5814 | (*num_syms)++; | |
5815 | *stringsize = *stringsize + strlen (sym->symbol.name) + 5; | |
5816 | while (*stringsize % 4) | |
5817 | (*stringsize)++; | |
5818 | } | |
5819 | ||
5820 | curr_bfd = curr_bfd->next; | |
5821 | } | |
5822 | return true; | |
5823 | } | |
5824 | ||
5825 | /* Hash a symbol name based on the hashing algorithm presented in the | |
5826 | SOM ABI. */ | |
5827 | static unsigned int | |
5828 | som_bfd_ar_symbol_hash (symbol) | |
5829 | asymbol *symbol; | |
5830 | { | |
5831 | unsigned int len = strlen (symbol->name); | |
5832 | ||
5833 | /* Names with length 1 are special. */ | |
5834 | if (len == 1) | |
5835 | return 0x1000100 | (symbol->name[0] << 16) | symbol->name[0]; | |
5836 | ||
5837 | return ((len & 0x7f) << 24) | (symbol->name[1] << 16) | |
5838 | | (symbol->name[len-2] << 8) | symbol->name[len-1]; | |
5839 | } | |
5840 | ||
5841 | /* Do the bulk of the work required to write the SOM library | |
5842 | symbol table. */ | |
6fa957a9 | 5843 | |
252b5132 RH |
5844 | static boolean |
5845 | som_bfd_ar_write_symbol_stuff (abfd, nsyms, string_size, lst, elength) | |
5846 | bfd *abfd; | |
5847 | unsigned int nsyms, string_size; | |
5848 | struct lst_header lst; | |
5849 | unsigned elength; | |
5850 | { | |
5851 | file_ptr lst_filepos; | |
5852 | char *strings = NULL, *p; | |
5853 | struct lst_symbol_record *lst_syms = NULL, *curr_lst_sym; | |
5854 | bfd *curr_bfd; | |
5855 | unsigned int *hash_table = NULL; | |
5856 | struct som_entry *som_dict = NULL; | |
5857 | struct lst_symbol_record **last_hash_entry = NULL; | |
5858 | unsigned int curr_som_offset, som_index = 0; | |
5859 | ||
5860 | hash_table = | |
5861 | (unsigned int *) bfd_malloc (lst.hash_size * sizeof (unsigned int)); | |
5862 | if (hash_table == NULL && lst.hash_size != 0) | |
5863 | goto error_return; | |
5864 | som_dict = | |
5865 | (struct som_entry *) bfd_malloc (lst.module_count | |
5866 | * sizeof (struct som_entry)); | |
5867 | if (som_dict == NULL && lst.module_count != 0) | |
5868 | goto error_return; | |
5869 | ||
5870 | last_hash_entry = | |
5871 | ((struct lst_symbol_record **) | |
5872 | bfd_malloc (lst.hash_size * sizeof (struct lst_symbol_record *))); | |
5873 | if (last_hash_entry == NULL && lst.hash_size != 0) | |
5874 | goto error_return; | |
5875 | ||
5876 | /* Lots of fields are file positions relative to the start | |
5877 | of the lst record. So save its location. */ | |
5878 | lst_filepos = bfd_tell (abfd) - sizeof (struct lst_header); | |
5879 | ||
5880 | /* Some initialization. */ | |
5881 | memset (hash_table, 0, 4 * lst.hash_size); | |
5882 | memset (som_dict, 0, lst.module_count * sizeof (struct som_entry)); | |
6fa957a9 | 5883 | memset (last_hash_entry, 0, |
252b5132 RH |
5884 | lst.hash_size * sizeof (struct lst_symbol_record *)); |
5885 | ||
5886 | /* Symbols have som_index fields, so we have to keep track of the | |
5887 | index of each SOM in the archive. | |
5888 | ||
5889 | The SOM dictionary has (among other things) the absolute file | |
5890 | position for the SOM which a particular dictionary entry | |
5891 | describes. We have to compute that information as we iterate | |
5892 | through the SOMs/symbols. */ | |
5893 | som_index = 0; | |
5894 | ||
5895 | /* We add in the size of the archive header twice as the location | |
5896 | in the SOM dictionary is the actual offset of the SOM, not the | |
5897 | archive header before the SOM. */ | |
5898 | curr_som_offset = 8 + 2 * sizeof (struct ar_hdr) + lst.file_end; | |
5899 | ||
5900 | /* Make room for the archive header and the contents of the | |
5901 | extended string table. Note that elength includes the size | |
5902 | of the archive header for the extended name table! */ | |
5903 | if (elength) | |
5904 | curr_som_offset += elength; | |
5905 | ||
5906 | /* Make sure we're properly aligned. */ | |
5907 | curr_som_offset = (curr_som_offset + 0x1) & ~0x1; | |
5908 | ||
6fa957a9 | 5909 | /* FIXME should be done with buffers just like everything else... */ |
252b5132 RH |
5910 | lst_syms = bfd_malloc (nsyms * sizeof (struct lst_symbol_record)); |
5911 | if (lst_syms == NULL && nsyms != 0) | |
5912 | goto error_return; | |
5913 | strings = bfd_malloc (string_size); | |
5914 | if (strings == NULL && string_size != 0) | |
5915 | goto error_return; | |
5916 | ||
5917 | p = strings; | |
5918 | curr_lst_sym = lst_syms; | |
5919 | ||
5920 | curr_bfd = abfd->archive_head; | |
5921 | while (curr_bfd != NULL) | |
5922 | { | |
5923 | unsigned int curr_count, i; | |
5924 | som_symbol_type *sym; | |
5925 | ||
5926 | /* Don't bother for non-SOM objects. */ | |
5927 | if (curr_bfd->format != bfd_object | |
5928 | || curr_bfd->xvec->flavour != bfd_target_som_flavour) | |
5929 | { | |
5930 | curr_bfd = curr_bfd->next; | |
5931 | continue; | |
5932 | } | |
5933 | ||
5934 | /* Make sure the symbol table has been read, then snag a pointer | |
5935 | to it. It's a little slimey to grab the symbols via obj_som_symtab, | |
5936 | but doing so avoids allocating lots of extra memory. */ | |
5937 | if (som_slurp_symbol_table (curr_bfd) == false) | |
5938 | goto error_return; | |
5939 | ||
5940 | sym = obj_som_symtab (curr_bfd); | |
5941 | curr_count = bfd_get_symcount (curr_bfd); | |
5942 | ||
5943 | for (i = 0; i < curr_count; i++, sym++) | |
5944 | { | |
5945 | struct som_misc_symbol_info info; | |
5946 | ||
5947 | /* Derive SOM information from the BFD symbol. */ | |
5948 | som_bfd_derive_misc_symbol_info (curr_bfd, &sym->symbol, &info); | |
5949 | ||
5950 | /* Should we include this symbol? */ | |
5951 | if (info.symbol_type == ST_NULL | |
5952 | || info.symbol_type == ST_SYM_EXT | |
5953 | || info.symbol_type == ST_ARG_EXT) | |
5954 | continue; | |
5955 | ||
5956 | /* Only global symbols and unsatisfied commons. */ | |
5957 | if (info.symbol_scope != SS_UNIVERSAL | |
5958 | && info.symbol_type != ST_STORAGE) | |
5959 | continue; | |
5960 | ||
5961 | /* Do no include undefined symbols. */ | |
5962 | if (bfd_is_und_section (sym->symbol.section)) | |
5963 | continue; | |
5964 | ||
5965 | /* If this is the first symbol from this SOM, then update | |
5966 | the SOM dictionary too. */ | |
5967 | if (som_dict[som_index].location == 0) | |
5968 | { | |
5969 | som_dict[som_index].location = curr_som_offset; | |
5970 | som_dict[som_index].length = arelt_size (curr_bfd); | |
5971 | } | |
5972 | ||
5973 | /* Fill in the lst symbol record. */ | |
5974 | curr_lst_sym->hidden = 0; | |
ba20314e | 5975 | curr_lst_sym->secondary_def = info.secondary_def; |
252b5132 RH |
5976 | curr_lst_sym->symbol_type = info.symbol_type; |
5977 | curr_lst_sym->symbol_scope = info.symbol_scope; | |
5978 | curr_lst_sym->check_level = 0; | |
5979 | curr_lst_sym->must_qualify = 0; | |
5980 | curr_lst_sym->initially_frozen = 0; | |
5981 | curr_lst_sym->memory_resident = 0; | |
5982 | curr_lst_sym->is_common = bfd_is_com_section (sym->symbol.section); | |
5983 | curr_lst_sym->dup_common = 0; | |
5984 | curr_lst_sym->xleast = 3; | |
5985 | curr_lst_sym->arg_reloc = info.arg_reloc; | |
5986 | curr_lst_sym->name.n_strx = p - strings + 4; | |
5987 | curr_lst_sym->qualifier_name.n_strx = 0; | |
5988 | curr_lst_sym->symbol_info = info.symbol_info; | |
5989 | curr_lst_sym->symbol_value = info.symbol_value | info.priv_level; | |
5990 | curr_lst_sym->symbol_descriptor = 0; | |
5991 | curr_lst_sym->reserved = 0; | |
5992 | curr_lst_sym->som_index = som_index; | |
5993 | curr_lst_sym->symbol_key = som_bfd_ar_symbol_hash (&sym->symbol); | |
5994 | curr_lst_sym->next_entry = 0; | |
5995 | ||
5996 | /* Insert into the hash table. */ | |
5997 | if (hash_table[curr_lst_sym->symbol_key % lst.hash_size]) | |
5998 | { | |
5999 | struct lst_symbol_record *tmp; | |
6000 | ||
6001 | /* There is already something at the head of this hash chain, | |
6002 | so tack this symbol onto the end of the chain. */ | |
6003 | tmp = last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size]; | |
6004 | tmp->next_entry | |
6005 | = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record) | |
6fa957a9 | 6006 | + lst.hash_size * 4 |
252b5132 RH |
6007 | + lst.module_count * sizeof (struct som_entry) |
6008 | + sizeof (struct lst_header); | |
6009 | } | |
6010 | else | |
6011 | { | |
6012 | /* First entry in this hash chain. */ | |
6013 | hash_table[curr_lst_sym->symbol_key % lst.hash_size] | |
6014 | = (curr_lst_sym - lst_syms) * sizeof (struct lst_symbol_record) | |
6fa957a9 | 6015 | + lst.hash_size * 4 |
252b5132 RH |
6016 | + lst.module_count * sizeof (struct som_entry) |
6017 | + sizeof (struct lst_header); | |
6018 | } | |
6019 | ||
6020 | /* Keep track of the last symbol we added to this chain so we can | |
6021 | easily update its next_entry pointer. */ | |
6022 | last_hash_entry[curr_lst_sym->symbol_key % lst.hash_size] | |
6023 | = curr_lst_sym; | |
6024 | ||
252b5132 RH |
6025 | /* Update the string table. */ |
6026 | bfd_put_32 (abfd, strlen (sym->symbol.name), p); | |
6027 | p += 4; | |
6028 | strcpy (p, sym->symbol.name); | |
6029 | p += strlen (sym->symbol.name) + 1; | |
6030 | while ((int)p % 4) | |
6031 | { | |
6032 | bfd_put_8 (abfd, 0, p); | |
6033 | p++; | |
6034 | } | |
6035 | ||
6036 | /* Head to the next symbol. */ | |
6037 | curr_lst_sym++; | |
6038 | } | |
6039 | ||
6040 | /* Keep track of where each SOM will finally reside; then look | |
6041 | at the next BFD. */ | |
6042 | curr_som_offset += arelt_size (curr_bfd) + sizeof (struct ar_hdr); | |
6fa957a9 | 6043 | |
252b5132 RH |
6044 | /* A particular object in the archive may have an odd length; the |
6045 | linker requires objects begin on an even boundary. So round | |
6046 | up the current offset as necessary. */ | |
6047 | curr_som_offset = (curr_som_offset + 0x1) & ~0x1; | |
6048 | curr_bfd = curr_bfd->next; | |
6049 | som_index++; | |
6050 | } | |
6051 | ||
6052 | /* Now scribble out the hash table. */ | |
6053 | if (bfd_write ((PTR) hash_table, lst.hash_size, 4, abfd) | |
6054 | != lst.hash_size * 4) | |
6055 | goto error_return; | |
6056 | ||
6057 | /* Then the SOM dictionary. */ | |
6058 | if (bfd_write ((PTR) som_dict, lst.module_count, | |
6059 | sizeof (struct som_entry), abfd) | |
6060 | != lst.module_count * sizeof (struct som_entry)) | |
6061 | goto error_return; | |
6062 | ||
6063 | /* The library symbols. */ | |
6064 | if (bfd_write ((PTR) lst_syms, nsyms, sizeof (struct lst_symbol_record), abfd) | |
6065 | != nsyms * sizeof (struct lst_symbol_record)) | |
6066 | goto error_return; | |
6067 | ||
6068 | /* And finally the strings. */ | |
6069 | if (bfd_write ((PTR) strings, string_size, 1, abfd) != string_size) | |
6070 | goto error_return; | |
6071 | ||
6072 | if (hash_table != NULL) | |
6073 | free (hash_table); | |
6074 | if (som_dict != NULL) | |
6075 | free (som_dict); | |
6076 | if (last_hash_entry != NULL) | |
6077 | free (last_hash_entry); | |
6078 | if (lst_syms != NULL) | |
6079 | free (lst_syms); | |
6080 | if (strings != NULL) | |
6081 | free (strings); | |
6082 | return true; | |
6083 | ||
6084 | error_return: | |
6085 | if (hash_table != NULL) | |
6086 | free (hash_table); | |
6087 | if (som_dict != NULL) | |
6088 | free (som_dict); | |
6089 | if (last_hash_entry != NULL) | |
6090 | free (last_hash_entry); | |
6091 | if (lst_syms != NULL) | |
6092 | free (lst_syms); | |
6093 | if (strings != NULL) | |
6094 | free (strings); | |
6095 | ||
6096 | return false; | |
6097 | } | |
6098 | ||
6099 | /* Write out the LST for the archive. | |
6100 | ||
6101 | You'll never believe this is really how armaps are handled in SOM... */ | |
6102 | ||
6103 | /*ARGSUSED*/ | |
6104 | static boolean | |
6105 | som_write_armap (abfd, elength, map, orl_count, stridx) | |
6106 | bfd *abfd; | |
6107 | unsigned int elength; | |
7dca057b JL |
6108 | struct orl *map ATTRIBUTE_UNUSED; |
6109 | unsigned int orl_count ATTRIBUTE_UNUSED; | |
6110 | int stridx ATTRIBUTE_UNUSED; | |
252b5132 RH |
6111 | { |
6112 | bfd *curr_bfd; | |
6113 | struct stat statbuf; | |
6114 | unsigned int i, lst_size, nsyms, stringsize; | |
6115 | struct ar_hdr hdr; | |
6116 | struct lst_header lst; | |
6117 | int *p; | |
6fa957a9 | 6118 | |
252b5132 RH |
6119 | /* We'll use this for the archive's date and mode later. */ |
6120 | if (stat (abfd->filename, &statbuf) != 0) | |
6121 | { | |
6122 | bfd_set_error (bfd_error_system_call); | |
6123 | return false; | |
6124 | } | |
6125 | /* Fudge factor. */ | |
6126 | bfd_ardata (abfd)->armap_timestamp = statbuf.st_mtime + 60; | |
6127 | ||
6128 | /* Account for the lst header first. */ | |
6129 | lst_size = sizeof (struct lst_header); | |
6130 | ||
6131 | /* Start building the LST header. */ | |
6132 | /* FIXME: Do we need to examine each element to determine the | |
6133 | largest id number? */ | |
6134 | lst.system_id = CPU_PA_RISC1_0; | |
6135 | lst.a_magic = LIBMAGIC; | |
6136 | lst.version_id = VERSION_ID; | |
6137 | lst.file_time.secs = 0; | |
6138 | lst.file_time.nanosecs = 0; | |
6139 | ||
6140 | lst.hash_loc = lst_size; | |
6141 | lst.hash_size = SOM_LST_HASH_SIZE; | |
6142 | ||
6143 | /* Hash table is a SOM_LST_HASH_SIZE 32bit offsets. */ | |
6144 | lst_size += 4 * SOM_LST_HASH_SIZE; | |
6145 | ||
6146 | /* We need to count the number of SOMs in this archive. */ | |
6147 | curr_bfd = abfd->archive_head; | |
6148 | lst.module_count = 0; | |
6149 | while (curr_bfd != NULL) | |
6150 | { | |
6151 | /* Only true SOM objects count. */ | |
6152 | if (curr_bfd->format == bfd_object | |
6153 | && curr_bfd->xvec->flavour == bfd_target_som_flavour) | |
6154 | lst.module_count++; | |
6155 | curr_bfd = curr_bfd->next; | |
6156 | } | |
6157 | lst.module_limit = lst.module_count; | |
6158 | lst.dir_loc = lst_size; | |
6159 | lst_size += sizeof (struct som_entry) * lst.module_count; | |
6160 | ||
6161 | /* We don't support import/export tables, auxiliary headers, | |
6162 | or free lists yet. Make the linker work a little harder | |
6163 | to make our life easier. */ | |
6164 | ||
6165 | lst.export_loc = 0; | |
6166 | lst.export_count = 0; | |
6167 | lst.import_loc = 0; | |
6168 | lst.aux_loc = 0; | |
6169 | lst.aux_size = 0; | |
6170 | ||
6171 | /* Count how many symbols we will have on the hash chains and the | |
6172 | size of the associated string table. */ | |
6173 | if (som_bfd_prep_for_ar_write (abfd, &nsyms, &stringsize) == false) | |
6174 | return false; | |
6175 | ||
6176 | lst_size += sizeof (struct lst_symbol_record) * nsyms; | |
6177 | ||
6178 | /* For the string table. One day we might actually use this info | |
6179 | to avoid small seeks/reads when reading archives. */ | |
6180 | lst.string_loc = lst_size; | |
6181 | lst.string_size = stringsize; | |
6182 | lst_size += stringsize; | |
6183 | ||
6184 | /* SOM ABI says this must be zero. */ | |
6185 | lst.free_list = 0; | |
6186 | lst.file_end = lst_size; | |
6187 | ||
6188 | /* Compute the checksum. Must happen after the entire lst header | |
6189 | has filled in. */ | |
6190 | p = (int *)&lst; | |
6191 | lst.checksum = 0; | |
6192 | for (i = 0; i < sizeof (struct lst_header)/sizeof (int) - 1; i++) | |
6193 | lst.checksum ^= *p++; | |
6194 | ||
6195 | sprintf (hdr.ar_name, "/ "); | |
6196 | sprintf (hdr.ar_date, "%ld", bfd_ardata (abfd)->armap_timestamp); | |
6197 | sprintf (hdr.ar_uid, "%ld", (long) getuid ()); | |
6198 | sprintf (hdr.ar_gid, "%ld", (long) getgid ()); | |
6199 | sprintf (hdr.ar_mode, "%-8o", (unsigned int) statbuf.st_mode); | |
6200 | sprintf (hdr.ar_size, "%-10d", (int) lst_size); | |
6201 | hdr.ar_fmag[0] = '`'; | |
6202 | hdr.ar_fmag[1] = '\012'; | |
6203 | ||
6204 | /* Turn any nulls into spaces. */ | |
6205 | for (i = 0; i < sizeof (struct ar_hdr); i++) | |
6206 | if (((char *) (&hdr))[i] == '\0') | |
6207 | (((char *) (&hdr))[i]) = ' '; | |
6208 | ||
6209 | /* Scribble out the ar header. */ | |
6210 | if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), abfd) | |
6211 | != sizeof (struct ar_hdr)) | |
6212 | return false; | |
6213 | ||
6214 | /* Now scribble out the lst header. */ | |
6215 | if (bfd_write ((PTR) &lst, 1, sizeof (struct lst_header), abfd) | |
6216 | != sizeof (struct lst_header)) | |
6217 | return false; | |
6218 | ||
6219 | /* Build and write the armap. */ | |
6220 | if (som_bfd_ar_write_symbol_stuff (abfd, nsyms, stringsize, lst, elength) | |
6221 | == false) | |
6222 | return false; | |
6fa957a9 | 6223 | |
252b5132 RH |
6224 | /* Done. */ |
6225 | return true; | |
6226 | } | |
6227 | ||
6228 | /* Free all information we have cached for this BFD. We can always | |
6229 | read it again later if we need it. */ | |
6230 | ||
6231 | static boolean | |
6232 | som_bfd_free_cached_info (abfd) | |
6233 | bfd *abfd; | |
6234 | { | |
6235 | asection *o; | |
6236 | ||
6237 | if (bfd_get_format (abfd) != bfd_object) | |
6238 | return true; | |
6239 | ||
6240 | #define FREE(x) if (x != NULL) { free (x); x = NULL; } | |
6241 | /* Free the native string and symbol tables. */ | |
6242 | FREE (obj_som_symtab (abfd)); | |
6243 | FREE (obj_som_stringtab (abfd)); | |
6244 | for (o = abfd->sections; o != (asection *) NULL; o = o->next) | |
6245 | { | |
6246 | /* Free the native relocations. */ | |
6247 | o->reloc_count = -1; | |
6248 | FREE (som_section_data (o)->reloc_stream); | |
6249 | /* Free the generic relocations. */ | |
6250 | FREE (o->relocation); | |
6251 | } | |
6252 | #undef FREE | |
6253 | ||
6254 | return true; | |
6255 | } | |
6256 | ||
6fa957a9 | 6257 | /* End of miscellaneous support functions. */ |
252b5132 RH |
6258 | |
6259 | /* Linker support functions. */ | |
6260 | static boolean | |
6261 | som_bfd_link_split_section (abfd, sec) | |
7dca057b | 6262 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
6263 | asection *sec; |
6264 | { | |
6265 | return (som_is_subspace (sec) && sec->_raw_size > 240000); | |
6266 | } | |
6267 | ||
6268 | #define som_close_and_cleanup som_bfd_free_cached_info | |
6269 | ||
6270 | #define som_read_ar_hdr _bfd_generic_read_ar_hdr | |
6271 | #define som_openr_next_archived_file bfd_generic_openr_next_archived_file | |
6272 | #define som_get_elt_at_index _bfd_generic_get_elt_at_index | |
6273 | #define som_generic_stat_arch_elt bfd_generic_stat_arch_elt | |
6274 | #define som_truncate_arname bfd_bsd_truncate_arname | |
6275 | #define som_slurp_extended_name_table _bfd_slurp_extended_name_table | |
6276 | #define som_construct_extended_name_table \ | |
6277 | _bfd_archive_coff_construct_extended_name_table | |
6278 | #define som_update_armap_timestamp bfd_true | |
6279 | #define som_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data | |
6280 | ||
6281 | #define som_get_lineno _bfd_nosymbols_get_lineno | |
6282 | #define som_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol | |
6283 | #define som_read_minisymbols _bfd_generic_read_minisymbols | |
6284 | #define som_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
6285 | #define som_get_section_contents_in_window \ | |
6286 | _bfd_generic_get_section_contents_in_window | |
6287 | ||
6288 | #define som_bfd_get_relocated_section_contents \ | |
6289 | bfd_generic_get_relocated_section_contents | |
6290 | #define som_bfd_relax_section bfd_generic_relax_section | |
6291 | #define som_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
6292 | #define som_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
6293 | #define som_bfd_final_link _bfd_generic_final_link | |
6294 | ||
6295 | #define som_bfd_gc_sections bfd_generic_gc_sections | |
6296 | ||
252b5132 RH |
6297 | const bfd_target som_vec = |
6298 | { | |
6299 | "som", /* name */ | |
6300 | bfd_target_som_flavour, | |
6301 | BFD_ENDIAN_BIG, /* target byte order */ | |
6302 | BFD_ENDIAN_BIG, /* target headers byte order */ | |
6303 | (HAS_RELOC | EXEC_P | /* object flags */ | |
6304 | HAS_LINENO | HAS_DEBUG | | |
6305 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC), | |
6306 | (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS | |
6307 | | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
6308 | ||
6309 | /* leading_symbol_char: is the first char of a user symbol | |
6310 | predictable, and if so what is it */ | |
6311 | 0, | |
6312 | '/', /* ar_pad_char */ | |
6313 | 14, /* ar_max_namelen */ | |
6314 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
6315 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
6316 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
6317 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
6318 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
6319 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
6320 | {_bfd_dummy_target, | |
6321 | som_object_p, /* bfd_check_format */ | |
6322 | bfd_generic_archive_p, | |
6323 | _bfd_dummy_target | |
6324 | }, | |
6325 | { | |
6326 | bfd_false, | |
6327 | som_mkobject, | |
6328 | _bfd_generic_mkarchive, | |
6329 | bfd_false | |
6330 | }, | |
6331 | { | |
6332 | bfd_false, | |
6333 | som_write_object_contents, | |
6334 | _bfd_write_archive_contents, | |
6335 | bfd_false, | |
6336 | }, | |
6337 | #undef som | |
6338 | ||
6339 | BFD_JUMP_TABLE_GENERIC (som), | |
6340 | BFD_JUMP_TABLE_COPY (som), | |
6341 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
6342 | BFD_JUMP_TABLE_ARCHIVE (som), | |
6343 | BFD_JUMP_TABLE_SYMBOLS (som), | |
6344 | BFD_JUMP_TABLE_RELOCS (som), | |
6345 | BFD_JUMP_TABLE_WRITE (som), | |
6346 | BFD_JUMP_TABLE_LINK (som), | |
6347 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
6348 | ||
c3c89269 | 6349 | NULL, |
6fa957a9 | 6350 | |
252b5132 RH |
6351 | (PTR) 0 |
6352 | }; | |
6353 | ||
6354 | #endif /* HOST_HPPAHPUX || HOST_HPPABSD || HOST_HPPAOSF */ |