]>
Commit | Line | Data |
---|---|---|
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 | |
bafe0602 KR |
122 | #define MY_slurp_armap bfd_slurp_bsd_armap_f2 |
123 | ||
124 | /***********************************************/ | |
125 | /* provide overrides for routines in this file */ | |
126 | /***********************************************/ | |
9783e04a DM |
127 | /* these don't use MY because that causes problems within JUMP_TABLE |
128 | (CAT winds up being expanded recursively, which ANSI C compilers | |
129 | will not do). */ | |
130 | #define MY_get_symtab hp300hpux_get_symtab | |
131 | #define MY_get_symtab_upper_bound hp300hpux_get_symtab_upper_bound | |
132 | #define MY_canonicalize_reloc hp300hpux_canonicalize_reloc | |
133 | #define MY_write_object_contents hp300hpux_write_object_contents | |
134 | ||
135 | #define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create | |
136 | #define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
137 | #define MY_bfd_final_link _bfd_generic_final_link | |
bafe0602 | 138 | |
5c8444f8 ILT |
139 | /* Until and unless we convert the slurp_reloc and slurp_symtab |
140 | routines in this file, we can not use the default aout | |
141 | free_cached_info routine which assumes that the relocs and symtabs | |
142 | were allocated using malloc. */ | |
143 | #define MY_bfd_free_cached_info bfd_true | |
144 | ||
bafe0602 KR |
145 | #define hp300hpux_write_syms aout_32_write_syms |
146 | ||
147 | #define MY_callback MY(callback) | |
148 | ||
34dd8ba3 | 149 | #define NAME_swap_exec_header_in NAME(hp300hpux_32_,swap_exec_header_in) |
bafe0602 KR |
150 | |
151 | #define HP_SYMTYPE_UNDEFINED 0x00 | |
152 | #define HP_SYMTYPE_ABSOLUTE 0x01 | |
153 | #define HP_SYMTYPE_TEXT 0x02 | |
154 | #define HP_SYMTYPE_DATA 0x03 | |
155 | #define HP_SYMTYPE_BSS 0x04 | |
156 | #define HP_SYMTYPE_COMMON 0x05 | |
157 | ||
158 | #define HP_SYMTYPE_TYPE 0x0F | |
159 | #define HP_SYMTYPE_FILENAME 0x1F | |
160 | ||
161 | #define HP_SYMTYPE_ALIGN 0x10 | |
162 | #define HP_SYMTYPE_EXTERNAL 0x20 | |
163 | #define HP_SECONDARY_SYMBOL 0x40 | |
164 | ||
165 | /* RELOCATION DEFINITIONS */ | |
166 | #define HP_RSEGMENT_TEXT 0x00 | |
167 | #define HP_RSEGMENT_DATA 0x01 | |
168 | #define HP_RSEGMENT_BSS 0x02 | |
169 | #define HP_RSEGMENT_EXTERNAL 0x03 | |
170 | #define HP_RSEGMENT_PCREL 0x04 | |
171 | #define HP_RSEGMENT_RDLT 0x05 | |
172 | #define HP_RSEGMENT_RPLT 0x06 | |
173 | #define HP_RSEGMENT_NOOP 0x3F | |
174 | ||
175 | #define HP_RLENGTH_BYTE 0x00 | |
176 | #define HP_RLENGTH_WORD 0x01 | |
177 | #define HP_RLENGTH_LONG 0x02 | |
178 | #define HP_RLENGTH_ALIGN 0x03 | |
179 | ||
34dd8ba3 | 180 | #define NAME(x,y) CAT3(hp300hpux,_32_,y) |
9783e04a | 181 | #define ARCH_SIZE 32 |
bafe0602 KR |
182 | #include "aoutx.h" |
183 | ||
34dd8ba3 JG |
184 | /* Since the hpux symbol table has nlist elements interspersed with |
185 | strings and we need to insert som strings for secondary symbols, we | |
186 | give ourselves a little extra padding up front to account for | |
187 | this. Note that for each non-secondary symbol we process, we gain | |
188 | 9 bytes of space for the discarded nlist element (one byte used for | |
189 | null). SYM_EXTRA_BYTES is the extra space. */ | |
bafe0602 KR |
190 | #define SYM_EXTRA_BYTES 1024 |
191 | ||
192 | /* Set parameters about this a.out file that are machine-dependent. | |
193 | This routine is called from some_aout_object_p just before it returns. */ | |
194 | static bfd_target * | |
25057836 JL |
195 | MY (callback) (abfd) |
196 | bfd *abfd; | |
bafe0602 KR |
197 | { |
198 | struct internal_exec *execp = exec_hdr (abfd); | |
199 | ||
200 | /* Calculate the file positions of the parts of a newly read aout header */ | |
25057836 | 201 | obj_textsec (abfd)->_raw_size = N_TXTSIZE (*execp); |
bafe0602 KR |
202 | |
203 | /* The virtual memory addresses of the sections */ | |
25057836 JL |
204 | obj_textsec (abfd)->vma = N_TXTADDR (*execp); |
205 | obj_datasec (abfd)->vma = N_DATADDR (*execp); | |
206 | obj_bsssec (abfd)->vma = N_BSSADDR (*execp); | |
bafe0602 KR |
207 | |
208 | /* The file offsets of the sections */ | |
209 | obj_textsec (abfd)->filepos = N_TXTOFF (*execp); | |
210 | obj_datasec (abfd)->filepos = N_DATOFF (*execp); | |
211 | ||
212 | /* The file offsets of the relocation info */ | |
25057836 JL |
213 | obj_textsec (abfd)->rel_filepos = N_TRELOFF (*execp); |
214 | obj_datasec (abfd)->rel_filepos = N_DRELOFF (*execp); | |
bafe0602 KR |
215 | |
216 | /* The file offsets of the string table and symbol table. */ | |
217 | obj_sym_filepos (abfd) = N_SYMOFF (*execp); | |
218 | obj_str_filepos (abfd) = N_STROFF (*execp); | |
34dd8ba3 | 219 | |
bafe0602 KR |
220 | /* Determine the architecture and machine type of the object file. */ |
221 | #ifdef SET_ARCH_MACH | |
25057836 | 222 | SET_ARCH_MACH (abfd, *execp); |
bafe0602 | 223 | #else |
25057836 | 224 | bfd_default_set_arch_mach (abfd, DEFAULT_ARCH, 0); |
bafe0602 KR |
225 | #endif |
226 | ||
227 | ||
25057836 JL |
228 | if (obj_aout_subformat (abfd) == gnu_encap_format) |
229 | { | |
bafe0602 | 230 | /* The file offsets of the relocation info */ |
25057836 JL |
231 | obj_textsec (abfd)->rel_filepos = N_GNU_TRELOFF (*execp); |
232 | obj_datasec (abfd)->rel_filepos = N_GNU_DRELOFF (*execp); | |
34dd8ba3 | 233 | |
bafe0602 | 234 | /* The file offsets of the string table and symbol table. */ |
25057836 | 235 | obj_sym_filepos (abfd) = N_GNU_SYMOFF (*execp); |
bafe0602 | 236 | obj_str_filepos (abfd) = (obj_sym_filepos (abfd) + execp->a_syms); |
34dd8ba3 | 237 | |
bafe0602 KR |
238 | abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS; |
239 | bfd_get_symcount (abfd) = execp->a_syms / 12; | |
240 | obj_symbol_entry_size (abfd) = 12; | |
241 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; | |
25057836 | 242 | } |
34dd8ba3 | 243 | |
bafe0602 KR |
244 | return abfd->xvec; |
245 | } | |
246 | ||
25057836 | 247 | extern boolean aout_32_write_syms PARAMS ((bfd * abfd)); |
9783e04a | 248 | |
bafe0602 | 249 | static boolean |
25057836 JL |
250 | MY (write_object_contents) (abfd) |
251 | bfd *abfd; | |
bafe0602 | 252 | { |
25057836 JL |
253 | struct external_exec exec_bytes; |
254 | struct internal_exec *execp = exec_hdr (abfd); | |
255 | bfd_size_type text_size; /* dummy vars */ | |
256 | file_ptr text_end; | |
34dd8ba3 | 257 | |
25057836 | 258 | memset (&exec_bytes, 0, sizeof (exec_bytes)); |
bafe0602 | 259 | #if CHOOSE_RELOC_SIZE |
25057836 | 260 | CHOOSE_RELOC_SIZE (abfd); |
bafe0602 | 261 | #else |
25057836 | 262 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; |
bafe0602 | 263 | #endif |
34dd8ba3 | 264 | |
25057836 JL |
265 | if (adata (abfd).magic == undecided_magic) |
266 | NAME (aout, adjust_sizes_and_vmas) (abfd, &text_size, &text_end); | |
267 | execp->a_syms = 0; | |
34dd8ba3 | 268 | |
25057836 | 269 | execp->a_entry = bfd_get_start_address (abfd); |
34dd8ba3 | 270 | |
25057836 JL |
271 | execp->a_trsize = ((obj_textsec (abfd)->reloc_count) * |
272 | obj_reloc_entry_size (abfd)); | |
273 | execp->a_drsize = ((obj_datasec (abfd)->reloc_count) * | |
274 | obj_reloc_entry_size (abfd)); | |
34dd8ba3 | 275 | |
25057836 JL |
276 | N_SET_MACHTYPE (*execp, 0xc); |
277 | N_SET_FLAGS (*execp, 0x2); | |
34dd8ba3 | 278 | |
25057836 | 279 | NAME (aout, swap_exec_header_out) (abfd, execp, &exec_bytes); |
34dd8ba3 | 280 | |
25057836 | 281 | /* update fields not covered by default swap_exec_header_out */ |
bafe0602 | 282 | |
25057836 JL |
283 | /* this is really the sym table size but we store it in drelocs */ |
284 | bfd_h_put_32 (abfd, bfd_get_symcount (abfd) * 12, exec_bytes.e_drelocs); | |
34dd8ba3 | 285 | |
25057836 JL |
286 | bfd_seek (abfd, 0L, false); |
287 | bfd_write ((PTR) & exec_bytes, 1, EXEC_BYTES_SIZE, abfd); | |
34dd8ba3 | 288 | |
25057836 | 289 | /* Write out the symbols, and then the relocs. We must write out |
9783e04a DM |
290 | the symbols first so that we know the symbol indices. */ |
291 | ||
25057836 JL |
292 | if (bfd_get_symcount (abfd) != 0) |
293 | { | |
294 | /* Skip the relocs to where we want to put the symbols. */ | |
295 | if (bfd_seek (abfd, (file_ptr) N_DRELOFF (*execp) + execp->a_drsize, | |
296 | SEEK_SET) != 0) | |
297 | return false; | |
298 | } | |
9783e04a | 299 | |
25057836 JL |
300 | if (!MY (write_syms) (abfd)) |
301 | return false; | |
34dd8ba3 | 302 | |
25057836 JL |
303 | if (bfd_get_symcount (abfd) != 0) |
304 | { | |
305 | bfd_seek (abfd, (long) (N_TRELOFF (*execp)), false); | |
34dd8ba3 | 306 | |
25057836 JL |
307 | if (!NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd))) |
308 | return false; | |
309 | bfd_seek (abfd, (long) (N_DRELOFF (*execp)), false); | |
34dd8ba3 | 310 | |
25057836 JL |
311 | if (!NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd))) |
312 | return false; | |
bafe0602 KR |
313 | } |
314 | ||
25057836 JL |
315 | return true; |
316 | } | |
bafe0602 KR |
317 | |
318 | /* convert the hp symbol type to be the same as aout64.h usage so we */ | |
319 | /* can piggyback routines in aoutx.h. */ | |
320 | ||
321 | static void | |
25057836 JL |
322 | convert_sym_type (sym_pointer, cache_ptr, abfd) |
323 | struct external_nlist *sym_pointer; | |
324 | aout_symbol_type *cache_ptr; | |
325 | bfd *abfd; | |
bafe0602 | 326 | { |
25057836 JL |
327 | int name_type; |
328 | int new_type; | |
bafe0602 | 329 | |
25057836 JL |
330 | name_type = (cache_ptr->type); |
331 | new_type = 0; | |
34dd8ba3 | 332 | |
25057836 | 333 | if ((name_type & HP_SYMTYPE_ALIGN) != 0) |
bafe0602 | 334 | { |
25057836 JL |
335 | /* iou_error ("aligned symbol encountered: %s", name);*/ |
336 | name_type = 0; | |
bafe0602 KR |
337 | } |
338 | ||
25057836 JL |
339 | if (name_type == HP_SYMTYPE_FILENAME) |
340 | new_type = N_FN; | |
341 | else | |
342 | { | |
343 | switch (name_type & HP_SYMTYPE_TYPE) | |
344 | { | |
345 | case HP_SYMTYPE_UNDEFINED: | |
346 | new_type = N_UNDF; | |
347 | break; | |
348 | ||
349 | case HP_SYMTYPE_ABSOLUTE: | |
350 | new_type = N_ABS; | |
351 | break; | |
352 | ||
353 | case HP_SYMTYPE_TEXT: | |
354 | new_type = N_TEXT; | |
355 | break; | |
356 | ||
357 | case HP_SYMTYPE_DATA: | |
358 | new_type = N_DATA; | |
359 | break; | |
360 | ||
361 | case HP_SYMTYPE_BSS: | |
362 | new_type = N_BSS; | |
363 | break; | |
364 | ||
365 | case HP_SYMTYPE_COMMON: | |
366 | new_type = N_COMM; | |
367 | break; | |
368 | ||
369 | default: | |
370 | fprintf (stderr, "unknown symbol type encountered: %x", name_type); | |
371 | } | |
372 | if (name_type & HP_SYMTYPE_EXTERNAL) | |
373 | new_type |= N_EXT; | |
374 | ||
375 | if (name_type & HP_SECONDARY_SYMBOL) | |
376 | new_type = (new_type & ~N_TYPE) | N_INDR; | |
377 | } | |
378 | cache_ptr->type = new_type; | |
34dd8ba3 | 379 | |
bafe0602 KR |
380 | } |
381 | ||
382 | ||
383 | /* | |
384 | DESCRIPTION | |
385 | Swaps the information in an executable header taken from a raw | |
386 | byte stream memory image, into the internal exec_header | |
387 | structure. | |
388 | */ | |
389 | ||
390 | void | |
25057836 JL |
391 | NAME (aout, swap_exec_header_in) (abfd, raw_bytes, execp) |
392 | bfd *abfd; | |
393 | struct external_exec *raw_bytes; | |
394 | struct internal_exec *execp; | |
bafe0602 | 395 | { |
25057836 | 396 | struct external_exec *bytes = (struct external_exec *) raw_bytes; |
bafe0602 KR |
397 | |
398 | /* The internal_exec structure has some fields that are unused in this | |
399 | configuration (IE for i960), so ensure that all such uninitialized | |
400 | fields are zero'd out. There are places where two of these structs | |
401 | are memcmp'd, and thus the contents do matter. */ | |
402 | memset (execp, 0, sizeof (struct internal_exec)); | |
403 | /* Now fill in fields in the execp, from the bytes in the raw data. */ | |
25057836 JL |
404 | execp->a_info = bfd_h_get_32 (abfd, bytes->e_info); |
405 | execp->a_text = GET_WORD (abfd, bytes->e_text); | |
406 | execp->a_data = GET_WORD (abfd, bytes->e_data); | |
407 | execp->a_bss = GET_WORD (abfd, bytes->e_bss); | |
408 | execp->a_syms = GET_WORD (abfd, bytes->e_syms); | |
409 | execp->a_entry = GET_WORD (abfd, bytes->e_entry); | |
bafe0602 KR |
410 | execp->a_trsize = GET_WORD (abfd, bytes->e_trsize); |
411 | execp->a_drsize = GET_WORD (abfd, bytes->e_drsize); | |
412 | ||
413 | /***************************************************************/ | |
414 | /* check the header to see if it was generated by a bfd output */ | |
415 | /* this is detected rather bizarely by requiring a bunch of */ | |
416 | /* header fields to be zero and an old unused field (now used) */ | |
417 | /* to be set. */ | |
418 | /***************************************************************/ | |
419 | do | |
25057836 | 420 | { |
bafe0602 | 421 | long syms; |
25057836 JL |
422 | struct aout_data_struct *rawptr; |
423 | if (bfd_h_get_32 (abfd, bytes->e_passize) != 0) | |
424 | break; | |
425 | if (bfd_h_get_32 (abfd, bytes->e_syms) != 0) | |
426 | break; | |
427 | if (bfd_h_get_32 (abfd, bytes->e_supsize) != 0) | |
428 | break; | |
34dd8ba3 | 429 | |
bafe0602 | 430 | syms = bfd_h_get_32 (abfd, bytes->e_drelocs); |
25057836 JL |
431 | if (syms == 0) |
432 | break; | |
bafe0602 KR |
433 | |
434 | /* OK, we've passed the test as best as we can determine */ | |
435 | execp->a_syms = syms; | |
436 | ||
437 | /* allocate storage for where we will store this result */ | |
25057836 | 438 | rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, sizeof (*rawptr)); |
bafe0602 | 439 | |
25057836 JL |
440 | if (rawptr == NULL) |
441 | { | |
442 | bfd_set_error (bfd_error_no_memory); | |
443 | return; | |
444 | } | |
bafe0602 | 445 | abfd->tdata.aout_data = rawptr; |
25057836 JL |
446 | obj_aout_subformat (abfd) = gnu_encap_format; |
447 | } | |
448 | while (0); | |
bafe0602 KR |
449 | } |
450 | ||
451 | ||
452 | /* The hp symbol table is a bit different than other a.out targets. Instead | |
453 | of having an array of nlist items and an array of strings, hp's format | |
454 | has them mixed together in one structure. In addition, the strings are | |
455 | not null terminated. It looks something like this: | |
456 | ||
457 | nlist element 1 | |
458 | string1 | |
459 | nlist element 2 | |
460 | string2 | |
461 | ... | |
462 | ||
463 | The whole symbol table is read as one chunk and then we march thru it | |
464 | and convert it to canonical form. As we march thru the table, we copy | |
465 | the nlist data into the internal form and we compact the strings and null | |
466 | terminate them, using storage from the already allocated symbol table: | |
467 | ||
468 | string1 | |
469 | null | |
470 | string2 | |
471 | null | |
472 | ... | |
473 | */ | |
474 | ||
475 | boolean | |
25057836 JL |
476 | MY (slurp_symbol_table) (abfd) |
477 | bfd *abfd; | |
bafe0602 KR |
478 | { |
479 | bfd_size_type symbol_bytes; | |
480 | struct external_nlist *syms; | |
481 | struct external_nlist *sym_pointer; | |
482 | struct external_nlist *sym_end; | |
483 | char *strings; | |
484 | aout_symbol_type *cached; | |
485 | unsigned num_syms = 0; | |
486 | unsigned num_secondary = 0; | |
34dd8ba3 | 487 | |
bafe0602 | 488 | /* If there's no work to be done, don't do any */ |
25057836 JL |
489 | if (obj_aout_symbols (abfd) != (aout_symbol_type *) NULL) |
490 | return true; | |
491 | symbol_bytes = exec_hdr (abfd)->a_syms; | |
492 | if (symbol_bytes == 0) | |
493 | { | |
494 | bfd_set_error (bfd_error_no_symbols); | |
495 | return false; | |
496 | } | |
bafe0602 | 497 | |
25057836 JL |
498 | strings = (char *) bfd_alloc (abfd, |
499 | symbol_bytes + SYM_EXTRA_BYTES); | |
9783e04a DM |
500 | if (!strings) |
501 | { | |
25057836 | 502 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
503 | return false; |
504 | } | |
bafe0602 KR |
505 | syms = (struct external_nlist *) (strings + SYM_EXTRA_BYTES); |
506 | bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET); | |
25057836 JL |
507 | if (bfd_read ((PTR) syms, symbol_bytes, 1, abfd) != symbol_bytes) |
508 | { | |
bafe0602 KR |
509 | bfd_release (abfd, syms); |
510 | return false; | |
25057836 | 511 | } |
34dd8ba3 | 512 | |
bafe0602 | 513 | |
25057836 | 514 | sym_end = (struct external_nlist *) (((char *) syms) + symbol_bytes); |
34dd8ba3 | 515 | |
bafe0602 | 516 | /* first, march thru the table and figure out how many symbols there are */ |
34dd8ba3 | 517 | for (sym_pointer = syms; sym_pointer < sym_end; sym_pointer++, num_syms++) |
25057836 JL |
518 | { |
519 | if (bfd_get_8 (abfd, sym_pointer->e_type) & HP_SECONDARY_SYMBOL) | |
520 | num_secondary++; | |
bafe0602 | 521 | /* skip over the embedded symbol. */ |
25057836 JL |
522 | sym_pointer = (struct external_nlist *) (((char *) sym_pointer) + |
523 | sym_pointer->e_length[0]); | |
524 | } | |
bafe0602 KR |
525 | |
526 | /* now that we know the symbol count, update the bfd header */ | |
25057836 | 527 | bfd_get_symcount (abfd) = num_syms + num_secondary; |
34dd8ba3 | 528 | |
bafe0602 | 529 | cached = (aout_symbol_type *) |
25057836 JL |
530 | bfd_zalloc (abfd, (bfd_size_type) (bfd_get_symcount (abfd) * |
531 | sizeof (aout_symbol_type))); | |
9783e04a DM |
532 | if (!cached) |
533 | { | |
25057836 | 534 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
535 | return false; |
536 | } | |
34dd8ba3 | 537 | |
bafe0602 KR |
538 | /* as we march thru the hp symbol table, convert it into a list of |
539 | null terminated strings to hold the symbol names. Make sure any | |
540 | assignment to the strings pointer is done after we're thru using | |
541 | the nlist so we don't overwrite anything important. */ | |
542 | num_secondary = 0; | |
34dd8ba3 | 543 | |
bafe0602 | 544 | /* OK, now walk the new symtable, cacheing symbol properties */ |
25057836 JL |
545 | { |
546 | aout_symbol_type *cache_ptr = cached; | |
547 | aout_symbol_type cache_save; | |
548 | /* Run through table and copy values */ | |
549 | for (sym_pointer = syms, cache_ptr = cached; | |
550 | sym_pointer < sym_end; sym_pointer++, cache_ptr++) | |
551 | { | |
552 | unsigned int length; | |
553 | cache_ptr->symbol.the_bfd = abfd; | |
554 | cache_ptr->symbol.value = GET_SWORD (abfd, sym_pointer->e_value); | |
555 | cache_ptr->desc = bfd_get_16 (abfd, sym_pointer->e_almod); | |
556 | cache_ptr->type = bfd_get_8 (abfd, sym_pointer->e_type); | |
557 | cache_ptr->symbol.udata = 0; | |
558 | length = bfd_get_8 (abfd, sym_pointer->e_length); | |
559 | cache_ptr->other = length; /* other not used, save length here */ | |
560 | ||
561 | cache_save = *cache_ptr; | |
562 | convert_sym_type (sym_pointer, cache_ptr, abfd); | |
563 | if (!translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd)) | |
564 | return false; | |
565 | ||
566 | /********************************************************/ | |
567 | /* for hpux, the 'lenght' value indicates the length of */ | |
568 | /* the symbol name which follows the nlist entry. */ | |
569 | /********************************************************/ | |
570 | if (length) | |
bafe0602 | 571 | { |
25057836 JL |
572 | /**************************************************************/ |
573 | /* the hp string is not null terminated so we create a new one*/ | |
574 | /* by copying the string to overlap the just vacated nlist */ | |
575 | /* structure before it in memory. */ | |
576 | /**************************************************************/ | |
577 | cache_ptr->symbol.name = strings; | |
578 | memcpy (strings, sym_pointer + 1, length); | |
579 | strings[length] = '\0'; | |
580 | strings += length + 1; | |
581 | } | |
582 | else | |
583 | cache_ptr->symbol.name = (char *) NULL; | |
584 | ||
585 | /**********************************************************/ | |
586 | /* this is a bit of a kludge, but a secondary hp symbol */ | |
587 | /* gets translated into a gnu indirect symbol. When this */ | |
588 | /* happens, we need to create a "dummy" record to which */ | |
589 | /* we can point the indirect symbol to. */ | |
590 | /**********************************************************/ | |
591 | if ((cache_ptr->type | N_EXT) == (N_INDR | N_EXT)) | |
592 | { | |
593 | aout_symbol_type *cache_ptr2 = cached + num_syms + num_secondary; | |
594 | ||
595 | num_secondary++; | |
596 | ||
597 | /* aoutx.h assumes the "next" value is the indirect sym */ | |
598 | /* since we don't want to disturb the order by inserting */ | |
599 | /* a new symbol, we tack on the created secondary syms */ | |
600 | /* at the end. */ | |
601 | cache_ptr->symbol.value = (bfd_vma) (cache_ptr2); | |
602 | *cache_ptr2 = cache_save; | |
603 | cache_ptr2->symbol.name = strings; | |
604 | memcpy (strings, cache_ptr->symbol.name, length); | |
605 | strcpy (strings + length, ":secondry"); /* 9 max chars + null */ | |
606 | strings += length + 10; | |
607 | cache_ptr2->type &= ~HP_SECONDARY_SYMBOL; /* clear secondary */ | |
608 | convert_sym_type (sym_pointer, cache_ptr2, abfd); | |
609 | if (!translate_from_native_sym_flags (sym_pointer, cache_ptr2, | |
610 | abfd)) | |
9783e04a | 611 | return false; |
bafe0602 | 612 | } |
bafe0602 | 613 | |
25057836 JL |
614 | /* skip over the embedded symbol. */ |
615 | sym_pointer = (struct external_nlist *) (((char *) sym_pointer) + | |
616 | length); | |
617 | } | |
618 | } | |
619 | ||
620 | obj_aout_symbols (abfd) = cached; | |
34dd8ba3 | 621 | |
bafe0602 KR |
622 | return true; |
623 | } | |
624 | ||
625 | ||
626 | ||
627 | void | |
25057836 JL |
628 | MY (swap_std_reloc_in) (abfd, bytes, cache_ptr, symbols) |
629 | bfd *abfd; | |
630 | struct hp300hpux_reloc *bytes; | |
631 | arelent *cache_ptr; | |
632 | asymbol **symbols; | |
bafe0602 KR |
633 | { |
634 | int r_index; | |
635 | int r_extern = 0; | |
636 | unsigned int r_length; | |
637 | int r_pcrel = 0; | |
25057836 | 638 | struct aoutdata *su = &(abfd->tdata.aout_data->a); |
bafe0602 | 639 | |
34dd8ba3 | 640 | cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address); |
25057836 | 641 | r_index = bfd_h_get_16 (abfd, bytes->r_index); |
34dd8ba3 | 642 | |
bafe0602 | 643 | switch (bytes->r_type[0]) |
25057836 JL |
644 | { |
645 | case HP_RSEGMENT_TEXT: | |
bafe0602 KR |
646 | r_index = N_TEXT; |
647 | break; | |
25057836 | 648 | case HP_RSEGMENT_DATA: |
bafe0602 KR |
649 | r_index = N_DATA; |
650 | break; | |
25057836 | 651 | case HP_RSEGMENT_BSS: |
bafe0602 KR |
652 | r_index = N_BSS; |
653 | break; | |
25057836 | 654 | case HP_RSEGMENT_EXTERNAL: |
bafe0602 KR |
655 | r_extern = 1; |
656 | break; | |
25057836 | 657 | case HP_RSEGMENT_PCREL: |
bafe0602 KR |
658 | r_extern = 1; |
659 | r_pcrel = 1; | |
660 | break; | |
25057836 | 661 | case HP_RSEGMENT_RDLT: |
bafe0602 | 662 | break; |
25057836 | 663 | case HP_RSEGMENT_RPLT: |
bafe0602 | 664 | break; |
25057836 | 665 | case HP_RSEGMENT_NOOP: |
bafe0602 | 666 | break; |
25057836 | 667 | default: |
9783e04a DM |
668 | fprintf (stderr, "illegal relocation segment type: %x\n", |
669 | (bytes->r_type[0])); | |
25057836 | 670 | } |
34dd8ba3 | 671 | |
bafe0602 KR |
672 | switch (bytes->r_length[0]) |
673 | { | |
674 | case HP_RLENGTH_BYTE: | |
675 | r_length = 0; | |
676 | break; | |
677 | case HP_RLENGTH_WORD: | |
678 | r_length = 1; | |
679 | break; | |
680 | case HP_RLENGTH_LONG: | |
681 | r_length = 2; | |
682 | break; | |
683 | default: | |
25057836 | 684 | fprintf (stderr, "illegal relocation length: %x\n", bytes->r_length[0]); |
ebd24135 | 685 | r_length = 0; |
bafe0602 KR |
686 | } |
687 | ||
25057836 | 688 | cache_ptr->howto = howto_table_std + r_length + 4 * r_pcrel; |
bafe0602 KR |
689 | /* FIXME-soon: Roll baserel, jmptable, relative bits into howto setting */ |
690 | ||
691 | /* This macro uses the r_index value computed above */ | |
692 | if (r_pcrel && r_extern) | |
25057836 JL |
693 | { |
694 | /* The GNU linker assumes any offset from beginning of section */ | |
695 | /* is already incorporated into the image while the HP linker */ | |
696 | /* adds this in later. Add it in now... */ | |
697 | MOVE_ADDRESS (-cache_ptr->address); | |
698 | } | |
bafe0602 | 699 | else |
25057836 JL |
700 | { |
701 | MOVE_ADDRESS (0); | |
702 | } | |
bafe0602 KR |
703 | } |
704 | ||
705 | boolean | |
25057836 JL |
706 | MY (slurp_reloc_table) (abfd, asect, symbols) |
707 | bfd *abfd; | |
708 | sec_ptr asect; | |
709 | asymbol **symbols; | |
bafe0602 KR |
710 | { |
711 | unsigned int count; | |
712 | bfd_size_type reloc_size; | |
713 | PTR relocs; | |
714 | arelent *reloc_cache; | |
715 | size_t each_size; | |
716 | struct hp300hpux_reloc *rptr; | |
717 | unsigned int counter; | |
718 | arelent *cache_ptr; | |
34dd8ba3 | 719 | |
25057836 JL |
720 | if (asect->relocation) |
721 | return true; | |
bafe0602 | 722 | |
25057836 JL |
723 | if (asect->flags & SEC_CONSTRUCTOR) |
724 | return true; | |
bafe0602 | 725 | |
25057836 JL |
726 | if (asect == obj_datasec (abfd)) |
727 | { | |
728 | reloc_size = exec_hdr (abfd)->a_drsize; | |
729 | goto doit; | |
730 | } | |
bafe0602 | 731 | |
25057836 JL |
732 | if (asect == obj_textsec (abfd)) |
733 | { | |
734 | reloc_size = exec_hdr (abfd)->a_trsize; | |
735 | goto doit; | |
736 | } | |
bafe0602 | 737 | |
25057836 | 738 | bfd_set_error (bfd_error_invalid_operation); |
bafe0602 KR |
739 | return false; |
740 | ||
25057836 | 741 | doit: |
bafe0602 KR |
742 | bfd_seek (abfd, asect->rel_filepos, SEEK_SET); |
743 | each_size = obj_reloc_entry_size (abfd); | |
744 | ||
745 | count = reloc_size / each_size; | |
746 | ||
747 | ||
25057836 JL |
748 | reloc_cache = (arelent *) bfd_zalloc (abfd, (size_t) (count * sizeof |
749 | (arelent))); | |
750 | if (!reloc_cache) | |
751 | { | |
752 | nomem: | |
753 | bfd_set_error (bfd_error_no_memory); | |
754 | return false; | |
755 | } | |
bafe0602 KR |
756 | |
757 | relocs = (PTR) bfd_alloc (abfd, reloc_size); | |
25057836 JL |
758 | if (!relocs) |
759 | { | |
760 | bfd_release (abfd, reloc_cache); | |
761 | goto nomem; | |
762 | } | |
bafe0602 | 763 | |
25057836 JL |
764 | if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size) |
765 | { | |
766 | bfd_release (abfd, relocs); | |
767 | bfd_release (abfd, reloc_cache); | |
768 | return false; | |
769 | } | |
bafe0602 | 770 | |
25057836 JL |
771 | rptr = (struct hp300hpux_reloc *) relocs; |
772 | counter = 0; | |
773 | cache_ptr = reloc_cache; | |
bafe0602 | 774 | |
25057836 JL |
775 | for (; counter < count; counter++, rptr++, cache_ptr++) |
776 | { | |
777 | MY (swap_std_reloc_in) (abfd, rptr, cache_ptr, symbols); | |
bafe0602 KR |
778 | } |
779 | ||
780 | ||
25057836 | 781 | bfd_release (abfd, relocs); |
bafe0602 KR |
782 | asect->relocation = reloc_cache; |
783 | asect->reloc_count = count; | |
784 | return true; | |
785 | } | |
786 | ||
787 | ||
788 | /************************************************************************/ | |
789 | /* The following functions are identical to functions in aoutx.h except */ | |
790 | /* they refer to MY(func) rather than NAME(aout,func) and they also */ | |
791 | /* call aout_32 versions if the input file was generated by gcc */ | |
792 | /************************************************************************/ | |
793 | ||
326e32d7 ILT |
794 | long aout_32_get_symtab PARAMS ((bfd * abfd, asymbol ** location)); |
795 | long aout_32_get_symtab_upper_bound PARAMS ((bfd * abfd)); | |
bafe0602 | 796 | |
326e32d7 ILT |
797 | long aout_32_canonicalize_reloc PARAMS ((bfd * abfd, sec_ptr section, |
798 | arelent ** relptr, | |
799 | asymbol ** symbols)); | |
bafe0602 | 800 | |
326e32d7 | 801 | long |
25057836 JL |
802 | MY (get_symtab) (abfd, location) |
803 | bfd *abfd; | |
804 | asymbol **location; | |
bafe0602 | 805 | { |
25057836 JL |
806 | unsigned int counter = 0; |
807 | aout_symbol_type *symbase; | |
bafe0602 | 808 | |
25057836 JL |
809 | if (obj_aout_subformat (abfd) == gnu_encap_format) |
810 | return aout_32_get_symtab (abfd, location); | |
34dd8ba3 | 811 | |
25057836 | 812 | if (!MY (slurp_symbol_table) (abfd)) |
326e32d7 | 813 | return -1; |
bafe0602 | 814 | |
25057836 JL |
815 | for (symbase = obj_aout_symbols (abfd); counter++ < bfd_get_symcount (abfd);) |
816 | *(location++) = (asymbol *) (symbase++); | |
817 | *location++ = 0; | |
818 | return bfd_get_symcount (abfd); | |
bafe0602 KR |
819 | } |
820 | ||
326e32d7 | 821 | long |
25057836 JL |
822 | MY (get_symtab_upper_bound) (abfd) |
823 | bfd *abfd; | |
bafe0602 | 824 | { |
25057836 JL |
825 | if (obj_aout_subformat (abfd) == gnu_encap_format) |
826 | return aout_32_get_symtab_upper_bound (abfd); | |
827 | if (!MY (slurp_symbol_table) (abfd)) | |
326e32d7 | 828 | return -1; |
bafe0602 | 829 | |
25057836 | 830 | return (bfd_get_symcount (abfd) + 1) * (sizeof (aout_symbol_type *)); |
bafe0602 KR |
831 | } |
832 | ||
833 | ||
834 | ||
835 | ||
326e32d7 | 836 | long |
25057836 JL |
837 | MY (canonicalize_reloc) (abfd, section, relptr, symbols) |
838 | bfd *abfd; | |
839 | sec_ptr section; | |
840 | arelent **relptr; | |
841 | asymbol **symbols; | |
bafe0602 KR |
842 | { |
843 | arelent *tblptr = section->relocation; | |
844 | unsigned int count; | |
25057836 JL |
845 | if (obj_aout_subformat (abfd) == gnu_encap_format) |
846 | return aout_32_canonicalize_reloc (abfd, section, relptr, symbols); | |
bafe0602 | 847 | |
25057836 | 848 | if (!(tblptr || MY (slurp_reloc_table) (abfd, section, symbols))) |
326e32d7 | 849 | return -1; |
bafe0602 | 850 | |
25057836 JL |
851 | if (section->flags & SEC_CONSTRUCTOR) |
852 | { | |
853 | arelent_chain *chain = section->constructor_chain; | |
854 | for (count = 0; count < section->reloc_count; count++) | |
855 | { | |
856 | *relptr++ = &chain->relent; | |
857 | chain = chain->next; | |
858 | } | |
859 | } | |
860 | else | |
861 | { | |
862 | tblptr = section->relocation; | |
863 | if (!tblptr) | |
326e32d7 | 864 | return -1; |
25057836 JL |
865 | |
866 | for (count = 0; count++ < section->reloc_count;) | |
867 | { | |
868 | *relptr++ = tblptr++; | |
869 | } | |
bafe0602 | 870 | } |
bafe0602 KR |
871 | *relptr = 0; |
872 | ||
873 | return section->reloc_count; | |
874 | } | |
875 | ||
876 | ||
877 | #include "aout-target.h" |