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bafe0602 | 1 | /* BFD backend for hp-ux 9000/300 |
9783e04a | 2 | Copyright (C) 1990, 1991, 1994 Free Software Foundation, Inc. |
bafe0602 KR |
3 | Written by Glenn Engel. |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | ||
21 | /* | |
34dd8ba3 | 22 | |
bafe0602 KR |
23 | hpux native ------------> | | |
24 | | hp300hpux bfd | ----------> hpux w/gnu ext | |
25 | hpux w/gnu extension ----> | | | |
26 | ||
27 | ||
28 | Support for the 9000/[34]00 has several limitations. | |
29 | 1. Shared libraries are not supported. | |
30 | 2. The output format from this bfd is not usable by native tools. | |
bafe0602 KR |
31 | |
32 | The primary motivation for writing this bfd was to allow use of | |
33 | gdb and gcc for host based debugging and not to mimic the hp-ux tools | |
34 | in every detail. This leads to a significant simplification of the | |
35 | code and a leap in performance. The decision to not output hp native | |
36 | compatible objects was further strengthened by the fact that the richness | |
37 | of the gcc compiled objects could not be represented without loss of | |
38 | information. For example, while the hp format supports the concept of | |
39 | secondary symbols, it does not support indirect symbols. Another | |
40 | reason is to maintain backwards compatibility with older implementations | |
41 | of gcc on hpux which used 'hpxt' to translate .a and .o files into a | |
42 | format which could be readily understood by the gnu linker and gdb. | |
43 | This allows reading hp secondary symbols and converting them into | |
44 | indirect symbols but the reverse it not always possible. | |
45 | ||
46 | Another example of differences is that the hp format stores symbol offsets | |
34dd8ba3 | 47 | in the object code while the gnu utilities use a field in the |
bafe0602 KR |
48 | relocation record for this. To support the hp native format, the object |
49 | code would need to be patched with the offsets when producing .o files. | |
50 | ||
51 | The basic technique taken in this implementation is to #include the code | |
52 | from aoutx.h and aout-target.h with appropriate #defines to override | |
53 | code where a unique implementation is needed: | |
54 | ||
55 | { | |
56 | #define a bunch of stuff | |
57 | #include <aoutx.h> | |
58 | ||
59 | implement a bunch of functions | |
34dd8ba3 | 60 | |
bafe0602 KR |
61 | #include "aout-target.h" |
62 | } | |
34dd8ba3 | 63 | |
bafe0602 KR |
64 | The hp symbol table is a bit different than other a.out targets. Instead |
65 | of having an array of nlist items and an array of strings, hp's format | |
66 | has them mixed together in one structure. In addition, the strings are | |
67 | not null terminated. It looks something like this: | |
34dd8ba3 | 68 | |
bafe0602 KR |
69 | nlist element 1 |
70 | string1 | |
71 | nlist element 2 | |
72 | string2 | |
73 | ... | |
34dd8ba3 | 74 | |
bafe0602 KR |
75 | The whole symbol table is read as one chunk and then we march thru it |
76 | and convert it to canonical form. As we march thru the table, we copy | |
77 | the nlist data into the internal form and we compact the strings and null | |
78 | terminate them, using storage from the already allocated symbol table: | |
34dd8ba3 | 79 | |
bafe0602 KR |
80 | string1 |
81 | null | |
82 | string2 | |
83 | null | |
bafe0602 KR |
84 | */ |
85 | ||
34dd8ba3 JG |
86 | /* @@ Is this really so different from normal a.out that it needs to include |
87 | aoutx.h? We should go through this file sometime and see what can be made | |
88 | more dependent on aout32.o and what might need to be broken off and accessed | |
89 | through the backend_data field. Or, maybe we really do need such a | |
90 | completely separate implementation. I don't have time to investigate this | |
91 | much further right now. [raeburn:19930428.2124EST] */ | |
92 | /* @@ Also, note that there wind up being two versions of some routines, with | |
93 | different names, only one of which actually gets used. For example: | |
94 | slurp_symbol_table | |
95 | swap_std_reloc_in | |
96 | slurp_reloc_table | |
97 | get_symtab | |
98 | get_symtab_upper_bound | |
99 | canonicalize_reloc | |
100 | mkobject | |
101 | This should also be fixed. */ | |
102 | ||
bafe0602 KR |
103 | #define ARCH 32 |
104 | #define TARGETNAME "a.out-hp300hpux" | |
105 | #define MY(OP) CAT(hp300hpux_,OP) | |
106 | ||
107 | #define external_exec hp300hpux_exec_bytes | |
108 | #define external_nlist hp300hpux_nlist_bytes | |
109 | ||
110 | #include "aout/hp300hpux.h" | |
111 | ||
112 | /* define these so we can compile unused routines in aoutx.h */ | |
113 | #define e_strx e_shlib | |
114 | #define e_other e_length | |
115 | #define e_desc e_almod | |
116 | ||
117 | #define AR_PAD_CHAR '/' | |
34dd8ba3 | 118 | #define TARGET_IS_BIG_ENDIAN_P |
bafe0602 KR |
119 | #define DEFAULT_ARCH bfd_arch_m68k |
120 | ||
121 | #define MY_get_section_contents aout_32_get_section_contents | |
122 | #define MY_close_and_cleanup aout_32_close_and_cleanup | |
123 | #define MY_slurp_armap bfd_slurp_bsd_armap_f2 | |
124 | ||
125 | /***********************************************/ | |
126 | /* provide overrides for routines in this file */ | |
127 | /***********************************************/ | |
9783e04a DM |
128 | /* these don't use MY because that causes problems within JUMP_TABLE |
129 | (CAT winds up being expanded recursively, which ANSI C compilers | |
130 | will not do). */ | |
131 | #define MY_get_symtab hp300hpux_get_symtab | |
132 | #define MY_get_symtab_upper_bound hp300hpux_get_symtab_upper_bound | |
133 | #define MY_canonicalize_reloc hp300hpux_canonicalize_reloc | |
134 | #define MY_write_object_contents hp300hpux_write_object_contents | |
135 | ||
136 | #define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
137 | #define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
138 | #define MY_bfd_final_link _bfd_generic_final_link | |
bafe0602 | 139 | |
bafe0602 KR |
140 | #define hp300hpux_write_syms aout_32_write_syms |
141 | ||
142 | #define MY_callback MY(callback) | |
143 | ||
34dd8ba3 | 144 | #define NAME_swap_exec_header_in NAME(hp300hpux_32_,swap_exec_header_in) |
bafe0602 KR |
145 | |
146 | #define HP_SYMTYPE_UNDEFINED 0x00 | |
147 | #define HP_SYMTYPE_ABSOLUTE 0x01 | |
148 | #define HP_SYMTYPE_TEXT 0x02 | |
149 | #define HP_SYMTYPE_DATA 0x03 | |
150 | #define HP_SYMTYPE_BSS 0x04 | |
151 | #define HP_SYMTYPE_COMMON 0x05 | |
152 | ||
153 | #define HP_SYMTYPE_TYPE 0x0F | |
154 | #define HP_SYMTYPE_FILENAME 0x1F | |
155 | ||
156 | #define HP_SYMTYPE_ALIGN 0x10 | |
157 | #define HP_SYMTYPE_EXTERNAL 0x20 | |
158 | #define HP_SECONDARY_SYMBOL 0x40 | |
159 | ||
160 | /* RELOCATION DEFINITIONS */ | |
161 | #define HP_RSEGMENT_TEXT 0x00 | |
162 | #define HP_RSEGMENT_DATA 0x01 | |
163 | #define HP_RSEGMENT_BSS 0x02 | |
164 | #define HP_RSEGMENT_EXTERNAL 0x03 | |
165 | #define HP_RSEGMENT_PCREL 0x04 | |
166 | #define HP_RSEGMENT_RDLT 0x05 | |
167 | #define HP_RSEGMENT_RPLT 0x06 | |
168 | #define HP_RSEGMENT_NOOP 0x3F | |
169 | ||
170 | #define HP_RLENGTH_BYTE 0x00 | |
171 | #define HP_RLENGTH_WORD 0x01 | |
172 | #define HP_RLENGTH_LONG 0x02 | |
173 | #define HP_RLENGTH_ALIGN 0x03 | |
174 | ||
34dd8ba3 | 175 | #define NAME(x,y) CAT3(hp300hpux,_32_,y) |
9783e04a | 176 | #define ARCH_SIZE 32 |
bafe0602 KR |
177 | #include "aoutx.h" |
178 | ||
34dd8ba3 JG |
179 | /* Since the hpux symbol table has nlist elements interspersed with |
180 | strings and we need to insert som strings for secondary symbols, we | |
181 | give ourselves a little extra padding up front to account for | |
182 | this. Note that for each non-secondary symbol we process, we gain | |
183 | 9 bytes of space for the discarded nlist element (one byte used for | |
184 | null). SYM_EXTRA_BYTES is the extra space. */ | |
bafe0602 KR |
185 | #define SYM_EXTRA_BYTES 1024 |
186 | ||
187 | /* Set parameters about this a.out file that are machine-dependent. | |
188 | This routine is called from some_aout_object_p just before it returns. */ | |
189 | static bfd_target * | |
190 | DEFUN(MY(callback),(abfd), | |
191 | bfd *abfd) | |
192 | { | |
193 | struct internal_exec *execp = exec_hdr (abfd); | |
194 | ||
195 | /* Calculate the file positions of the parts of a newly read aout header */ | |
196 | obj_textsec (abfd)->_raw_size = N_TXTSIZE(*execp); | |
197 | ||
198 | /* The virtual memory addresses of the sections */ | |
199 | obj_textsec (abfd)->vma = N_TXTADDR(*execp); | |
200 | obj_datasec (abfd)->vma = N_DATADDR(*execp); | |
201 | obj_bsssec (abfd)->vma = N_BSSADDR(*execp); | |
202 | ||
203 | /* The file offsets of the sections */ | |
204 | obj_textsec (abfd)->filepos = N_TXTOFF (*execp); | |
205 | obj_datasec (abfd)->filepos = N_DATOFF (*execp); | |
206 | ||
207 | /* The file offsets of the relocation info */ | |
208 | obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp); | |
209 | obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp); | |
210 | ||
211 | /* The file offsets of the string table and symbol table. */ | |
212 | obj_sym_filepos (abfd) = N_SYMOFF (*execp); | |
213 | obj_str_filepos (abfd) = N_STROFF (*execp); | |
34dd8ba3 | 214 | |
bafe0602 KR |
215 | /* Determine the architecture and machine type of the object file. */ |
216 | #ifdef SET_ARCH_MACH | |
217 | SET_ARCH_MACH(abfd, *execp); | |
218 | #else | |
219 | bfd_default_set_arch_mach(abfd, DEFAULT_ARCH, 0); | |
220 | #endif | |
221 | ||
222 | ||
223 | if (obj_aout_subformat(abfd) == gnu_encap_format) | |
224 | { | |
225 | /* The file offsets of the relocation info */ | |
226 | obj_textsec (abfd)->rel_filepos = N_GNU_TRELOFF(*execp); | |
227 | obj_datasec (abfd)->rel_filepos = N_GNU_DRELOFF(*execp); | |
34dd8ba3 | 228 | |
bafe0602 KR |
229 | /* The file offsets of the string table and symbol table. */ |
230 | obj_sym_filepos (abfd) = N_GNU_SYMOFF(*execp); | |
231 | obj_str_filepos (abfd) = (obj_sym_filepos (abfd) + execp->a_syms); | |
34dd8ba3 | 232 | |
bafe0602 KR |
233 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; |
234 | bfd_get_symcount (abfd) = execp->a_syms / 12; | |
235 | obj_symbol_entry_size (abfd) = 12; | |
236 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
237 | } | |
34dd8ba3 | 238 | |
bafe0602 KR |
239 | return abfd->xvec; |
240 | } | |
241 | ||
9783e04a DM |
242 | extern boolean aout_32_write_syms PARAMS ((bfd *abfd)); |
243 | ||
bafe0602 KR |
244 | static boolean |
245 | DEFUN(MY(write_object_contents),(abfd), | |
246 | bfd *abfd) | |
247 | { | |
248 | struct external_exec exec_bytes; | |
249 | struct internal_exec *execp = exec_hdr (abfd); | |
34dd8ba3 | 250 | bfd_size_type text_size; /* dummy vars */ |
bafe0602 | 251 | file_ptr text_end; |
34dd8ba3 | 252 | |
bafe0602 KR |
253 | memset (&exec_bytes, 0, sizeof (exec_bytes)); |
254 | #if CHOOSE_RELOC_SIZE | |
255 | CHOOSE_RELOC_SIZE(abfd); | |
256 | #else | |
257 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
258 | #endif | |
34dd8ba3 JG |
259 | |
260 | if (adata(abfd).magic == undecided_magic) | |
261 | NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end); | |
bafe0602 | 262 | execp->a_syms = 0; |
34dd8ba3 JG |
263 | |
264 | execp->a_entry = bfd_get_start_address (abfd); | |
265 | ||
266 | execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * | |
267 | obj_reloc_entry_size (abfd)); | |
268 | execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * | |
269 | obj_reloc_entry_size (abfd)); | |
270 | ||
271 | N_SET_MACHTYPE(*execp, 0xc); | |
bafe0602 | 272 | N_SET_FLAGS (*execp, 0x2); |
34dd8ba3 JG |
273 | |
274 | NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes); | |
275 | ||
bafe0602 KR |
276 | /* update fields not covered by default swap_exec_header_out */ |
277 | ||
278 | /* this is really the sym table size but we store it in drelocs */ | |
279 | bfd_h_put_32 (abfd, bfd_get_symcount (abfd) * 12, exec_bytes.e_drelocs); | |
34dd8ba3 JG |
280 | |
281 | bfd_seek (abfd, 0L, false); | |
bafe0602 | 282 | bfd_write ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd); |
34dd8ba3 | 283 | |
9783e04a DM |
284 | /* Write out the symbols, and then the relocs. We must write out |
285 | the symbols first so that we know the symbol indices. */ | |
286 | ||
287 | if (bfd_get_symcount (abfd) != 0) | |
288 | { | |
289 | /* Skip the relocs to where we want to put the symbols. */ | |
290 | if (bfd_seek (abfd, (file_ptr) N_DRELOFF (*execp) + execp->a_drsize, | |
291 | SEEK_SET) != 0) | |
292 | return false; | |
293 | } | |
294 | ||
295 | if (! MY(write_syms) (abfd)) | |
296 | return false; | |
34dd8ba3 JG |
297 | |
298 | if (bfd_get_symcount (abfd) != 0) | |
299 | { | |
300 | bfd_seek (abfd, (long)(N_TRELOFF(*execp)), false); | |
301 | ||
302 | if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd))) return false; | |
303 | bfd_seek (abfd, (long)(N_DRELOFF(*execp)), false); | |
304 | ||
305 | if (!NAME(aout,squirt_out_relocs)(abfd, obj_datasec (abfd))) return false; | |
bafe0602 KR |
306 | } |
307 | ||
bafe0602 | 308 | return true; |
34dd8ba3 | 309 | } |
bafe0602 KR |
310 | |
311 | /* convert the hp symbol type to be the same as aout64.h usage so we */ | |
312 | /* can piggyback routines in aoutx.h. */ | |
313 | ||
314 | static void | |
315 | DEFUN(convert_sym_type,(sym_pointer, cache_ptr, abfd), | |
316 | struct external_nlist *sym_pointer AND | |
317 | aout_symbol_type *cache_ptr AND | |
318 | bfd *abfd) | |
319 | { | |
320 | int name_type; | |
321 | int new_type; | |
322 | ||
323 | name_type = (cache_ptr->type); | |
324 | new_type = 0; | |
34dd8ba3 | 325 | |
bafe0602 KR |
326 | if ((name_type & HP_SYMTYPE_ALIGN) != 0) |
327 | { | |
328 | /* iou_error ("aligned symbol encountered: %s", name);*/ | |
329 | name_type = 0; | |
330 | } | |
331 | ||
332 | if (name_type == HP_SYMTYPE_FILENAME) | |
333 | new_type = N_FN; | |
334 | else | |
335 | { | |
336 | switch (name_type & HP_SYMTYPE_TYPE) | |
337 | { | |
338 | case HP_SYMTYPE_UNDEFINED: | |
339 | new_type = N_UNDF; | |
340 | break; | |
341 | ||
342 | case HP_SYMTYPE_ABSOLUTE: | |
343 | new_type = N_ABS; | |
344 | break; | |
345 | ||
346 | case HP_SYMTYPE_TEXT: | |
347 | new_type = N_TEXT; | |
348 | break; | |
349 | ||
350 | case HP_SYMTYPE_DATA: | |
351 | new_type = N_DATA; | |
352 | break; | |
353 | ||
354 | case HP_SYMTYPE_BSS: | |
355 | new_type = N_BSS; | |
356 | break; | |
357 | ||
358 | case HP_SYMTYPE_COMMON: | |
359 | new_type = N_COMM; | |
360 | break; | |
361 | ||
362 | default: | |
9783e04a | 363 | fprintf (stderr, "unknown symbol type encountered: %x", name_type); |
bafe0602 KR |
364 | } |
365 | if (name_type & HP_SYMTYPE_EXTERNAL) | |
366 | new_type |= N_EXT; | |
34dd8ba3 | 367 | |
bafe0602 KR |
368 | if (name_type & HP_SECONDARY_SYMBOL) |
369 | new_type = (new_type & ~N_TYPE) | N_INDR; | |
370 | } | |
371 | cache_ptr->type = new_type; | |
34dd8ba3 | 372 | |
bafe0602 KR |
373 | } |
374 | ||
375 | ||
376 | /* | |
377 | DESCRIPTION | |
378 | Swaps the information in an executable header taken from a raw | |
379 | byte stream memory image, into the internal exec_header | |
380 | structure. | |
381 | */ | |
382 | ||
383 | void | |
384 | DEFUN(NAME(aout,swap_exec_header_in),(abfd, raw_bytes, execp), | |
385 | bfd *abfd AND | |
386 | struct external_exec *raw_bytes AND | |
387 | struct internal_exec *execp) | |
388 | { | |
389 | struct external_exec *bytes = (struct external_exec *)raw_bytes; | |
390 | ||
391 | /* The internal_exec structure has some fields that are unused in this | |
392 | configuration (IE for i960), so ensure that all such uninitialized | |
393 | fields are zero'd out. There are places where two of these structs | |
394 | are memcmp'd, and thus the contents do matter. */ | |
395 | memset (execp, 0, sizeof (struct internal_exec)); | |
396 | /* Now fill in fields in the execp, from the bytes in the raw data. */ | |
397 | execp->a_info = bfd_h_get_32 (abfd, bytes->e_info); | |
398 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
399 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
400 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
401 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
402 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
403 | execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); | |
404 | execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); | |
405 | ||
406 | /***************************************************************/ | |
407 | /* check the header to see if it was generated by a bfd output */ | |
408 | /* this is detected rather bizarely by requiring a bunch of */ | |
409 | /* header fields to be zero and an old unused field (now used) */ | |
410 | /* to be set. */ | |
411 | /***************************************************************/ | |
412 | do | |
413 | { | |
414 | long syms; | |
415 | struct aout_data_struct *rawptr; | |
416 | if (bfd_h_get_32 (abfd, bytes->e_passize) != 0) break; | |
417 | if (bfd_h_get_32 (abfd, bytes->e_syms) != 0) break; | |
418 | if (bfd_h_get_32 (abfd, bytes->e_supsize) != 0) break; | |
34dd8ba3 | 419 | |
bafe0602 KR |
420 | syms = bfd_h_get_32 (abfd, bytes->e_drelocs); |
421 | if (syms == 0) break; | |
422 | ||
423 | /* OK, we've passed the test as best as we can determine */ | |
424 | execp->a_syms = syms; | |
425 | ||
426 | /* allocate storage for where we will store this result */ | |
427 | rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, sizeof (*rawptr)); | |
428 | ||
429 | if (rawptr == NULL) { | |
430 | bfd_error = no_memory; | |
431 | return; | |
432 | } | |
433 | abfd->tdata.aout_data = rawptr; | |
434 | obj_aout_subformat(abfd) = gnu_encap_format; | |
435 | } while (0); | |
436 | } | |
437 | ||
438 | ||
439 | /* The hp symbol table is a bit different than other a.out targets. Instead | |
440 | of having an array of nlist items and an array of strings, hp's format | |
441 | has them mixed together in one structure. In addition, the strings are | |
442 | not null terminated. It looks something like this: | |
443 | ||
444 | nlist element 1 | |
445 | string1 | |
446 | nlist element 2 | |
447 | string2 | |
448 | ... | |
449 | ||
450 | The whole symbol table is read as one chunk and then we march thru it | |
451 | and convert it to canonical form. As we march thru the table, we copy | |
452 | the nlist data into the internal form and we compact the strings and null | |
453 | terminate them, using storage from the already allocated symbol table: | |
454 | ||
455 | string1 | |
456 | null | |
457 | string2 | |
458 | null | |
459 | ... | |
460 | */ | |
461 | ||
462 | boolean | |
463 | DEFUN(MY(slurp_symbol_table),(abfd), | |
464 | bfd *abfd) | |
465 | { | |
466 | bfd_size_type symbol_bytes; | |
467 | struct external_nlist *syms; | |
468 | struct external_nlist *sym_pointer; | |
469 | struct external_nlist *sym_end; | |
470 | char *strings; | |
471 | aout_symbol_type *cached; | |
472 | unsigned num_syms = 0; | |
473 | unsigned num_secondary = 0; | |
34dd8ba3 | 474 | |
bafe0602 KR |
475 | /* If there's no work to be done, don't do any */ |
476 | if (obj_aout_symbols (abfd) != (aout_symbol_type *)NULL) return true; | |
477 | symbol_bytes = exec_hdr(abfd)->a_syms; | |
478 | if (symbol_bytes == 0) { | |
479 | bfd_error = no_symbols; | |
480 | return false; | |
481 | } | |
482 | ||
483 | strings = (char *) bfd_alloc(abfd, | |
484 | symbol_bytes + SYM_EXTRA_BYTES); | |
9783e04a DM |
485 | if (!strings) |
486 | { | |
487 | bfd_error = no_memory; | |
488 | return false; | |
489 | } | |
bafe0602 KR |
490 | syms = (struct external_nlist *) (strings + SYM_EXTRA_BYTES); |
491 | bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET); | |
492 | if (bfd_read ((PTR)syms, symbol_bytes, 1, abfd) != symbol_bytes) | |
493 | { | |
494 | bfd_release (abfd, syms); | |
495 | return false; | |
496 | } | |
34dd8ba3 | 497 | |
bafe0602 KR |
498 | |
499 | sym_end = (struct external_nlist *) (((char *)syms) + symbol_bytes); | |
34dd8ba3 | 500 | |
bafe0602 | 501 | /* first, march thru the table and figure out how many symbols there are */ |
34dd8ba3 | 502 | for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++, num_syms++) |
bafe0602 KR |
503 | { |
504 | if (bfd_get_8(abfd, sym_pointer->e_type) & HP_SECONDARY_SYMBOL) | |
505 | num_secondary++; | |
506 | /* skip over the embedded symbol. */ | |
507 | sym_pointer = (struct external_nlist *) (((char *)sym_pointer) + | |
508 | sym_pointer->e_length[0]); | |
509 | } | |
510 | ||
511 | /* now that we know the symbol count, update the bfd header */ | |
512 | bfd_get_symcount (abfd) = num_syms+num_secondary; | |
34dd8ba3 | 513 | |
bafe0602 KR |
514 | cached = (aout_symbol_type *) |
515 | bfd_zalloc(abfd, (bfd_size_type)(bfd_get_symcount (abfd) * | |
516 | sizeof(aout_symbol_type))); | |
9783e04a DM |
517 | if (!cached) |
518 | { | |
519 | bfd_error = no_memory; | |
520 | return false; | |
521 | } | |
34dd8ba3 | 522 | |
bafe0602 KR |
523 | /* as we march thru the hp symbol table, convert it into a list of |
524 | null terminated strings to hold the symbol names. Make sure any | |
525 | assignment to the strings pointer is done after we're thru using | |
526 | the nlist so we don't overwrite anything important. */ | |
527 | num_secondary = 0; | |
34dd8ba3 | 528 | |
bafe0602 KR |
529 | /* OK, now walk the new symtable, cacheing symbol properties */ |
530 | { | |
531 | aout_symbol_type *cache_ptr = cached; | |
532 | aout_symbol_type cache_save; | |
533 | /* Run through table and copy values */ | |
534 | for (sym_pointer = syms, cache_ptr = cached; | |
34dd8ba3 | 535 | sym_pointer < sym_end; sym_pointer++, cache_ptr++) |
bafe0602 KR |
536 | { |
537 | unsigned int length; | |
538 | cache_ptr->symbol.the_bfd = abfd; | |
539 | cache_ptr->symbol.value = GET_SWORD(abfd, sym_pointer->e_value); | |
540 | cache_ptr->desc = bfd_get_16(abfd, sym_pointer->e_almod); | |
541 | cache_ptr->type = bfd_get_8(abfd, sym_pointer->e_type); | |
542 | cache_ptr->symbol.udata = 0; | |
543 | length = bfd_get_8(abfd, sym_pointer->e_length); | |
544 | cache_ptr->other = length; /* other not used, save length here */ | |
34dd8ba3 | 545 | |
bafe0602 KR |
546 | cache_save = *cache_ptr; |
547 | convert_sym_type(sym_pointer, cache_ptr, abfd); | |
9783e04a DM |
548 | if (!translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd)) |
549 | return false; | |
bafe0602 KR |
550 | |
551 | /********************************************************/ | |
552 | /* for hpux, the 'lenght' value indicates the length of */ | |
553 | /* the symbol name which follows the nlist entry. */ | |
554 | /********************************************************/ | |
555 | if (length) | |
556 | { | |
557 | /**************************************************************/ | |
558 | /* the hp string is not null terminated so we create a new one*/ | |
559 | /* by copying the string to overlap the just vacated nlist */ | |
560 | /* structure before it in memory. */ | |
561 | /**************************************************************/ | |
562 | cache_ptr->symbol.name = strings; | |
563 | memcpy(strings, sym_pointer+1, length); | |
564 | strings[length] = '\0'; | |
565 | strings += length + 1; | |
566 | } | |
567 | else | |
568 | cache_ptr->symbol.name = (char *)NULL; | |
34dd8ba3 | 569 | |
bafe0602 KR |
570 | /**********************************************************/ |
571 | /* this is a bit of a kludge, but a secondary hp symbol */ | |
572 | /* gets translated into a gnu indirect symbol. When this */ | |
573 | /* happens, we need to create a "dummy" record to which */ | |
574 | /* we can point the indirect symbol to. */ | |
575 | /**********************************************************/ | |
576 | if ((cache_ptr->type | N_EXT) == (N_INDR | N_EXT)) | |
577 | { | |
578 | aout_symbol_type *cache_ptr2 = cached + num_syms+num_secondary; | |
579 | ||
580 | num_secondary++; | |
581 | ||
582 | /* aoutx.h assumes the "next" value is the indirect sym */ | |
583 | /* since we don't want to disturb the order by inserting */ | |
584 | /* a new symbol, we tack on the created secondary syms */ | |
585 | /* at the end. */ | |
586 | cache_ptr->symbol.value = (bfd_vma)(cache_ptr2); | |
587 | *cache_ptr2 = cache_save; | |
588 | cache_ptr2->symbol.name = strings; | |
589 | memcpy(strings, cache_ptr->symbol.name, length); | |
590 | strcpy(strings+length,":secondry"); /* 9 max chars + null */ | |
591 | strings += length+10; | |
592 | cache_ptr2->type &= ~HP_SECONDARY_SYMBOL; /* clear secondary */ | |
593 | convert_sym_type(sym_pointer, cache_ptr2, abfd); | |
9783e04a DM |
594 | if (!translate_from_native_sym_flags (sym_pointer, cache_ptr2, |
595 | abfd)) | |
596 | return false; | |
bafe0602 KR |
597 | } |
598 | ||
599 | /* skip over the embedded symbol. */ | |
600 | sym_pointer = (struct external_nlist *) (((char *)sym_pointer) + | |
601 | length); | |
602 | } | |
603 | } | |
604 | ||
605 | obj_aout_symbols (abfd) = cached; | |
34dd8ba3 | 606 | |
bafe0602 KR |
607 | return true; |
608 | } | |
609 | ||
610 | ||
611 | ||
612 | void | |
613 | DEFUN(MY(swap_std_reloc_in), (abfd, bytes, cache_ptr, symbols), | |
614 | bfd *abfd AND | |
615 | struct hp300hpux_reloc *bytes AND | |
616 | arelent *cache_ptr AND | |
617 | asymbol **symbols) | |
618 | { | |
619 | int r_index; | |
620 | int r_extern = 0; | |
621 | unsigned int r_length; | |
622 | int r_pcrel = 0; | |
bafe0602 KR |
623 | struct aoutdata *su = &(abfd->tdata.aout_data->a); |
624 | ||
34dd8ba3 | 625 | cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address); |
bafe0602 | 626 | r_index = bfd_h_get_16(abfd, bytes->r_index); |
34dd8ba3 | 627 | |
bafe0602 KR |
628 | switch (bytes->r_type[0]) |
629 | { | |
630 | case HP_RSEGMENT_TEXT: | |
631 | r_index = N_TEXT; | |
632 | break; | |
633 | case HP_RSEGMENT_DATA: | |
634 | r_index = N_DATA; | |
635 | break; | |
636 | case HP_RSEGMENT_BSS: | |
637 | r_index = N_BSS; | |
638 | break; | |
639 | case HP_RSEGMENT_EXTERNAL: | |
640 | r_extern = 1; | |
641 | break; | |
642 | case HP_RSEGMENT_PCREL: | |
643 | r_extern = 1; | |
644 | r_pcrel = 1; | |
645 | break; | |
646 | case HP_RSEGMENT_RDLT: | |
647 | break; | |
648 | case HP_RSEGMENT_RPLT: | |
649 | break; | |
650 | case HP_RSEGMENT_NOOP: | |
651 | break; | |
652 | default: | |
9783e04a DM |
653 | fprintf (stderr, "illegal relocation segment type: %x\n", |
654 | (bytes->r_type[0])); | |
bafe0602 | 655 | } |
34dd8ba3 | 656 | |
bafe0602 KR |
657 | switch (bytes->r_length[0]) |
658 | { | |
659 | case HP_RLENGTH_BYTE: | |
660 | r_length = 0; | |
661 | break; | |
662 | case HP_RLENGTH_WORD: | |
663 | r_length = 1; | |
664 | break; | |
665 | case HP_RLENGTH_LONG: | |
666 | r_length = 2; | |
667 | break; | |
668 | default: | |
9783e04a | 669 | fprintf (stderr, "illegal relocation length: %x\n",bytes->r_length[0] ); |
ebd24135 | 670 | r_length = 0; |
bafe0602 KR |
671 | } |
672 | ||
673 | cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel; | |
674 | /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */ | |
675 | ||
676 | /* This macro uses the r_index value computed above */ | |
677 | if (r_pcrel && r_extern) | |
678 | { | |
679 | /* The GNU linker assumes any offset from beginning of section */ | |
680 | /* is already incorporated into the image while the HP linker */ | |
681 | /* adds this in later. Add it in now... */ | |
682 | MOVE_ADDRESS( - cache_ptr->address); | |
683 | } | |
684 | else | |
685 | { | |
686 | MOVE_ADDRESS(0); | |
687 | } | |
688 | } | |
689 | ||
690 | boolean | |
691 | DEFUN(MY(slurp_reloc_table),(abfd, asect, symbols), | |
692 | bfd *abfd AND | |
693 | sec_ptr asect AND | |
694 | asymbol **symbols) | |
695 | { | |
696 | unsigned int count; | |
697 | bfd_size_type reloc_size; | |
698 | PTR relocs; | |
699 | arelent *reloc_cache; | |
700 | size_t each_size; | |
701 | struct hp300hpux_reloc *rptr; | |
702 | unsigned int counter; | |
703 | arelent *cache_ptr; | |
34dd8ba3 | 704 | |
bafe0602 KR |
705 | if (asect->relocation) return true; |
706 | ||
707 | if (asect->flags & SEC_CONSTRUCTOR) return true; | |
708 | ||
709 | if (asect == obj_datasec (abfd)) { | |
710 | reloc_size = exec_hdr(abfd)->a_drsize; | |
711 | goto doit; | |
712 | } | |
713 | ||
714 | if (asect == obj_textsec (abfd)) { | |
715 | reloc_size = exec_hdr(abfd)->a_trsize; | |
716 | goto doit; | |
717 | } | |
718 | ||
719 | bfd_error = invalid_operation; | |
720 | return false; | |
721 | ||
722 | doit: | |
723 | bfd_seek (abfd, asect->rel_filepos, SEEK_SET); | |
724 | each_size = obj_reloc_entry_size (abfd); | |
725 | ||
726 | count = reloc_size / each_size; | |
727 | ||
728 | ||
729 | reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t)(count * sizeof | |
730 | (arelent))); | |
731 | if (!reloc_cache) { | |
732 | nomem: | |
733 | bfd_error = no_memory; | |
734 | return false; | |
735 | } | |
736 | ||
737 | relocs = (PTR) bfd_alloc (abfd, reloc_size); | |
738 | if (!relocs) { | |
739 | bfd_release (abfd, reloc_cache); | |
740 | goto nomem; | |
741 | } | |
742 | ||
743 | if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) { | |
744 | bfd_release (abfd, relocs); | |
745 | bfd_release (abfd, reloc_cache); | |
746 | bfd_error = system_call_error; | |
747 | return false; | |
748 | } | |
749 | ||
750 | rptr = (struct hp300hpux_reloc*) relocs; | |
751 | counter = 0; | |
752 | cache_ptr = reloc_cache; | |
753 | ||
754 | for (; counter < count; counter++, rptr++, cache_ptr++) { | |
755 | MY(swap_std_reloc_in)(abfd, rptr, cache_ptr, symbols); | |
756 | } | |
757 | ||
758 | ||
759 | bfd_release (abfd,relocs); | |
760 | asect->relocation = reloc_cache; | |
761 | asect->reloc_count = count; | |
762 | return true; | |
763 | } | |
764 | ||
765 | ||
766 | /************************************************************************/ | |
767 | /* The following functions are identical to functions in aoutx.h except */ | |
768 | /* they refer to MY(func) rather than NAME(aout,func) and they also */ | |
769 | /* call aout_32 versions if the input file was generated by gcc */ | |
770 | /************************************************************************/ | |
771 | ||
772 | unsigned int aout_32_get_symtab PARAMS((bfd *abfd, asymbol **location)); | |
773 | unsigned int aout_32_get_symtab_upper_bound PARAMS ((bfd *abfd)); | |
774 | ||
775 | unsigned int aout_32_canonicalize_reloc PARAMS((bfd *abfd, sec_ptr section, | |
776 | arelent **relptr, | |
777 | asymbol **symbols)); | |
778 | ||
779 | unsigned int | |
780 | DEFUN(MY(get_symtab),(abfd, location), | |
781 | bfd *abfd AND | |
782 | asymbol **location) | |
783 | { | |
784 | unsigned int counter = 0; | |
785 | aout_symbol_type *symbase; | |
786 | ||
787 | if (obj_aout_subformat(abfd) == gnu_encap_format) | |
788 | return aout_32_get_symtab(abfd,location); | |
34dd8ba3 | 789 | |
bafe0602 KR |
790 | if (!MY(slurp_symbol_table)(abfd)) return 0; |
791 | ||
792 | for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);) | |
793 | *(location++) = (asymbol *)( symbase++); | |
794 | *location++ =0; | |
795 | return bfd_get_symcount (abfd); | |
796 | } | |
797 | ||
798 | unsigned int | |
799 | DEFUN(MY(get_symtab_upper_bound),(abfd), | |
800 | bfd *abfd) | |
801 | { | |
802 | if (obj_aout_subformat(abfd) == gnu_encap_format) | |
803 | return aout_32_get_symtab_upper_bound(abfd); | |
804 | if (!MY(slurp_symbol_table)(abfd)) return 0; | |
805 | ||
806 | return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *)); | |
807 | } | |
808 | ||
809 | ||
810 | ||
811 | ||
812 | unsigned int | |
813 | DEFUN(MY(canonicalize_reloc),(abfd, section, relptr, symbols), | |
814 | bfd *abfd AND | |
815 | sec_ptr section AND | |
816 | arelent **relptr AND | |
817 | asymbol **symbols) | |
818 | { | |
819 | arelent *tblptr = section->relocation; | |
820 | unsigned int count; | |
821 | if (obj_aout_subformat(abfd) == gnu_encap_format) | |
34dd8ba3 | 822 | return aout_32_canonicalize_reloc(abfd,section,relptr,symbols); |
bafe0602 KR |
823 | |
824 | if (!(tblptr || MY(slurp_reloc_table)(abfd, section, symbols))) | |
825 | return 0; | |
826 | ||
827 | if (section->flags & SEC_CONSTRUCTOR) { | |
828 | arelent_chain *chain = section->constructor_chain; | |
829 | for (count = 0; count < section->reloc_count; count ++) { | |
830 | *relptr ++ = &chain->relent; | |
831 | chain = chain->next; | |
832 | } | |
833 | } | |
834 | else { | |
835 | tblptr = section->relocation; | |
836 | if (!tblptr) return 0; | |
837 | ||
34dd8ba3 | 838 | for (count = 0; count++ < section->reloc_count;) |
bafe0602 KR |
839 | { |
840 | *relptr++ = tblptr++; | |
841 | } | |
842 | } | |
843 | *relptr = 0; | |
844 | ||
845 | return section->reloc_count; | |
846 | } | |
847 | ||
848 | ||
849 | #include "aout-target.h" |