Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Matsushita 10300 specific support for 32-bit ELF |
b2a8e766 | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
010ac81f | 3 | Free Software Foundation, Inc. |
252b5132 RH |
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | #include "elf/mn10300.h" | |
26 | ||
917583ad NC |
27 | static bfd_reloc_status_type mn10300_elf_final_link_relocate |
28 | PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *, bfd_byte *, | |
03a12831 AO |
29 | bfd_vma, bfd_vma, bfd_vma, |
30 | struct elf_link_hash_entry *, unsigned long, struct bfd_link_info *, | |
917583ad | 31 | asection *, int)); |
b34976b6 | 32 | static bfd_boolean mn10300_elf_relocate_section |
917583ad NC |
33 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
34 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
b34976b6 AM |
35 | static bfd_boolean mn10300_elf_relax_section |
36 | PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); | |
917583ad NC |
37 | static bfd_byte * mn10300_elf_get_relocated_section_contents |
38 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, | |
b34976b6 AM |
39 | bfd_byte *, bfd_boolean, asymbol **)); |
40 | static unsigned long elf_mn10300_mach | |
41 | PARAMS ((flagword)); | |
42 | void _bfd_mn10300_elf_final_write_processing | |
43 | PARAMS ((bfd *, bfd_boolean)); | |
44 | bfd_boolean _bfd_mn10300_elf_object_p | |
45 | PARAMS ((bfd *)); | |
46 | bfd_boolean _bfd_mn10300_elf_merge_private_bfd_data | |
47 | PARAMS ((bfd *,bfd *)); | |
917583ad | 48 | |
03a12831 AO |
49 | /* The mn10300 linker needs to keep track of the number of relocs that |
50 | it decides to copy in check_relocs for each symbol. This is so | |
51 | that it can discard PC relative relocs if it doesn't need them when | |
52 | linking with -Bsymbolic. We store the information in a field | |
53 | extending the regular ELF linker hash table. */ | |
54 | ||
55 | /* This structure keeps track of the number of PC relative relocs we | |
56 | have copied for a given symbol. */ | |
57 | ||
58 | struct elf_mn10300_pcrel_relocs_copied | |
59 | { | |
60 | /* Next section. */ | |
61 | struct elf_mn10300_pcrel_relocs_copied * next; | |
62 | /* A section in dynobj. */ | |
63 | asection * section; | |
64 | /* Number of relocs copied in this section. */ | |
65 | bfd_size_type count; | |
66 | }; | |
67 | ||
010ac81f | 68 | struct elf32_mn10300_link_hash_entry { |
252b5132 RH |
69 | /* The basic elf link hash table entry. */ |
70 | struct elf_link_hash_entry root; | |
71 | ||
72 | /* For function symbols, the number of times this function is | |
73 | called directly (ie by name). */ | |
74 | unsigned int direct_calls; | |
75 | ||
76 | /* For function symbols, the size of this function's stack | |
77 | (if <= 255 bytes). We stuff this into "call" instructions | |
78 | to this target when it's valid and profitable to do so. | |
79 | ||
80 | This does not include stack allocated by movm! */ | |
81 | unsigned char stack_size; | |
82 | ||
83 | /* For function symbols, arguments (if any) for movm instruction | |
84 | in the prologue. We stuff this value into "call" instructions | |
85 | to the target when it's valid and profitable to do so. */ | |
86 | unsigned char movm_args; | |
87 | ||
4cc11e76 | 88 | /* For function symbols, the amount of stack space that would be allocated |
252b5132 RH |
89 | by the movm instruction. This is redundant with movm_args, but we |
90 | add it to the hash table to avoid computing it over and over. */ | |
91 | unsigned char movm_stack_size; | |
92 | ||
03a12831 AO |
93 | /* Number of PC relative relocs copied for this symbol. */ |
94 | struct elf_mn10300_pcrel_relocs_copied * pcrel_relocs_copied; | |
95 | ||
252b5132 RH |
96 | /* When set, convert all "call" instructions to this target into "calls" |
97 | instructions. */ | |
98 | #define MN10300_CONVERT_CALL_TO_CALLS 0x1 | |
99 | ||
100 | /* Used to mark functions which have had redundant parts of their | |
101 | prologue deleted. */ | |
102 | #define MN10300_DELETED_PROLOGUE_BYTES 0x2 | |
103 | unsigned char flags; | |
104 | }; | |
105 | ||
106 | /* We derive a hash table from the main elf linker hash table so | |
107 | we can store state variables and a secondary hash table without | |
108 | resorting to global variables. */ | |
010ac81f | 109 | struct elf32_mn10300_link_hash_table { |
252b5132 RH |
110 | /* The main hash table. */ |
111 | struct elf_link_hash_table root; | |
112 | ||
113 | /* A hash table for static functions. We could derive a new hash table | |
114 | instead of using the full elf32_mn10300_link_hash_table if we wanted | |
115 | to save some memory. */ | |
116 | struct elf32_mn10300_link_hash_table *static_hash_table; | |
117 | ||
118 | /* Random linker state flags. */ | |
119 | #define MN10300_HASH_ENTRIES_INITIALIZED 0x1 | |
120 | char flags; | |
121 | }; | |
122 | ||
123 | /* For MN10300 linker hash table. */ | |
124 | ||
125 | /* Get the MN10300 ELF linker hash table from a link_info structure. */ | |
126 | ||
127 | #define elf32_mn10300_hash_table(p) \ | |
128 | ((struct elf32_mn10300_link_hash_table *) ((p)->hash)) | |
129 | ||
130 | #define elf32_mn10300_link_hash_traverse(table, func, info) \ | |
131 | (elf_link_hash_traverse \ | |
132 | (&(table)->root, \ | |
b34976b6 | 133 | (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \ |
252b5132 RH |
134 | (info))) |
135 | ||
136 | static struct bfd_hash_entry *elf32_mn10300_link_hash_newfunc | |
137 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
138 | static struct bfd_link_hash_table *elf32_mn10300_link_hash_table_create | |
139 | PARAMS ((bfd *)); | |
e2d34d7d DJ |
140 | static void elf32_mn10300_link_hash_table_free |
141 | PARAMS ((struct bfd_link_hash_table *)); | |
252b5132 RH |
142 | |
143 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup | |
144 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
145 | static void mn10300_info_to_howto | |
947216bf | 146 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
b34976b6 | 147 | static bfd_boolean mn10300_elf_check_relocs |
252b5132 RH |
148 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
149 | const Elf_Internal_Rela *)); | |
150 | static asection *mn10300_elf_gc_mark_hook | |
1e2f5b6e | 151 | PARAMS ((asection *, struct bfd_link_info *info, Elf_Internal_Rela *, |
252b5132 | 152 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
b34976b6 | 153 | static bfd_boolean mn10300_elf_relax_delete_bytes |
252b5132 | 154 | PARAMS ((bfd *, asection *, bfd_vma, int)); |
b34976b6 AM |
155 | static bfd_boolean mn10300_elf_symbol_address_p |
156 | PARAMS ((bfd *, asection *, Elf_Internal_Sym *, bfd_vma)); | |
157 | static bfd_boolean elf32_mn10300_finish_hash_table_entry | |
252b5132 RH |
158 | PARAMS ((struct bfd_hash_entry *, PTR)); |
159 | static void compute_function_info | |
160 | PARAMS ((bfd *, struct elf32_mn10300_link_hash_entry *, | |
161 | bfd_vma, unsigned char *)); | |
162 | ||
03a12831 AO |
163 | static bfd_boolean _bfd_mn10300_elf_create_got_section |
164 | PARAMS ((bfd *, struct bfd_link_info *)); | |
165 | static bfd_boolean _bfd_mn10300_elf_create_dynamic_sections | |
166 | PARAMS ((bfd *, struct bfd_link_info *)); | |
167 | static bfd_boolean _bfd_mn10300_elf_adjust_dynamic_symbol | |
168 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
169 | static bfd_boolean _bfd_mn10300_elf_discard_copies | |
170 | PARAMS ((struct elf32_mn10300_link_hash_entry *, | |
171 | struct bfd_link_info *)); | |
172 | static bfd_boolean _bfd_mn10300_elf_size_dynamic_sections | |
173 | PARAMS ((bfd *, struct bfd_link_info *)); | |
174 | static bfd_boolean _bfd_mn10300_elf_finish_dynamic_symbol | |
175 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
176 | Elf_Internal_Sym *)); | |
177 | static bfd_boolean _bfd_mn10300_elf_finish_dynamic_sections | |
178 | PARAMS ((bfd *, struct bfd_link_info *)); | |
179 | ||
010ac81f | 180 | static reloc_howto_type elf_mn10300_howto_table[] = { |
252b5132 RH |
181 | /* Dummy relocation. Does nothing. */ |
182 | HOWTO (R_MN10300_NONE, | |
183 | 0, | |
184 | 2, | |
185 | 16, | |
b34976b6 | 186 | FALSE, |
252b5132 RH |
187 | 0, |
188 | complain_overflow_bitfield, | |
189 | bfd_elf_generic_reloc, | |
190 | "R_MN10300_NONE", | |
b34976b6 | 191 | FALSE, |
252b5132 RH |
192 | 0, |
193 | 0, | |
b34976b6 | 194 | FALSE), |
252b5132 RH |
195 | /* Standard 32 bit reloc. */ |
196 | HOWTO (R_MN10300_32, | |
197 | 0, | |
198 | 2, | |
199 | 32, | |
b34976b6 | 200 | FALSE, |
252b5132 RH |
201 | 0, |
202 | complain_overflow_bitfield, | |
203 | bfd_elf_generic_reloc, | |
204 | "R_MN10300_32", | |
b34976b6 | 205 | FALSE, |
252b5132 RH |
206 | 0xffffffff, |
207 | 0xffffffff, | |
b34976b6 | 208 | FALSE), |
252b5132 RH |
209 | /* Standard 16 bit reloc. */ |
210 | HOWTO (R_MN10300_16, | |
211 | 0, | |
212 | 1, | |
213 | 16, | |
b34976b6 | 214 | FALSE, |
252b5132 RH |
215 | 0, |
216 | complain_overflow_bitfield, | |
217 | bfd_elf_generic_reloc, | |
218 | "R_MN10300_16", | |
b34976b6 | 219 | FALSE, |
252b5132 RH |
220 | 0xffff, |
221 | 0xffff, | |
b34976b6 | 222 | FALSE), |
252b5132 RH |
223 | /* Standard 8 bit reloc. */ |
224 | HOWTO (R_MN10300_8, | |
225 | 0, | |
226 | 0, | |
227 | 8, | |
b34976b6 | 228 | FALSE, |
252b5132 RH |
229 | 0, |
230 | complain_overflow_bitfield, | |
231 | bfd_elf_generic_reloc, | |
232 | "R_MN10300_8", | |
b34976b6 | 233 | FALSE, |
252b5132 RH |
234 | 0xff, |
235 | 0xff, | |
b34976b6 | 236 | FALSE), |
252b5132 RH |
237 | /* Standard 32bit pc-relative reloc. */ |
238 | HOWTO (R_MN10300_PCREL32, | |
239 | 0, | |
240 | 2, | |
241 | 32, | |
b34976b6 | 242 | TRUE, |
252b5132 RH |
243 | 0, |
244 | complain_overflow_bitfield, | |
245 | bfd_elf_generic_reloc, | |
246 | "R_MN10300_PCREL32", | |
b34976b6 | 247 | FALSE, |
252b5132 RH |
248 | 0xffffffff, |
249 | 0xffffffff, | |
b34976b6 | 250 | TRUE), |
252b5132 RH |
251 | /* Standard 16bit pc-relative reloc. */ |
252 | HOWTO (R_MN10300_PCREL16, | |
253 | 0, | |
254 | 1, | |
255 | 16, | |
b34976b6 | 256 | TRUE, |
252b5132 RH |
257 | 0, |
258 | complain_overflow_bitfield, | |
259 | bfd_elf_generic_reloc, | |
260 | "R_MN10300_PCREL16", | |
b34976b6 | 261 | FALSE, |
252b5132 RH |
262 | 0xffff, |
263 | 0xffff, | |
b34976b6 | 264 | TRUE), |
252b5132 RH |
265 | /* Standard 8 pc-relative reloc. */ |
266 | HOWTO (R_MN10300_PCREL8, | |
267 | 0, | |
268 | 0, | |
269 | 8, | |
b34976b6 | 270 | TRUE, |
252b5132 RH |
271 | 0, |
272 | complain_overflow_bitfield, | |
273 | bfd_elf_generic_reloc, | |
274 | "R_MN10300_PCREL8", | |
b34976b6 | 275 | FALSE, |
252b5132 RH |
276 | 0xff, |
277 | 0xff, | |
b34976b6 | 278 | TRUE), |
252b5132 RH |
279 | |
280 | /* GNU extension to record C++ vtable hierarchy */ | |
281 | HOWTO (R_MN10300_GNU_VTINHERIT, /* type */ | |
282 | 0, /* rightshift */ | |
283 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
284 | 0, /* bitsize */ | |
b34976b6 | 285 | FALSE, /* pc_relative */ |
252b5132 RH |
286 | 0, /* bitpos */ |
287 | complain_overflow_dont, /* complain_on_overflow */ | |
288 | NULL, /* special_function */ | |
289 | "R_MN10300_GNU_VTINHERIT", /* name */ | |
b34976b6 | 290 | FALSE, /* partial_inplace */ |
252b5132 RH |
291 | 0, /* src_mask */ |
292 | 0, /* dst_mask */ | |
b34976b6 | 293 | FALSE), /* pcrel_offset */ |
252b5132 RH |
294 | |
295 | /* GNU extension to record C++ vtable member usage */ | |
296 | HOWTO (R_MN10300_GNU_VTENTRY, /* type */ | |
297 | 0, /* rightshift */ | |
298 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
299 | 0, /* bitsize */ | |
b34976b6 | 300 | FALSE, /* pc_relative */ |
252b5132 RH |
301 | 0, /* bitpos */ |
302 | complain_overflow_dont, /* complain_on_overflow */ | |
303 | NULL, /* special_function */ | |
304 | "R_MN10300_GNU_VTENTRY", /* name */ | |
b34976b6 | 305 | FALSE, /* partial_inplace */ |
252b5132 RH |
306 | 0, /* src_mask */ |
307 | 0, /* dst_mask */ | |
b34976b6 | 308 | FALSE), /* pcrel_offset */ |
252b5132 RH |
309 | |
310 | /* Standard 24 bit reloc. */ | |
311 | HOWTO (R_MN10300_24, | |
312 | 0, | |
313 | 2, | |
314 | 24, | |
b34976b6 | 315 | FALSE, |
252b5132 RH |
316 | 0, |
317 | complain_overflow_bitfield, | |
318 | bfd_elf_generic_reloc, | |
319 | "R_MN10300_24", | |
b34976b6 | 320 | FALSE, |
252b5132 RH |
321 | 0xffffff, |
322 | 0xffffff, | |
b34976b6 | 323 | FALSE), |
03a12831 AO |
324 | HOWTO (R_MN10300_GOTPC32, /* type */ |
325 | 0, /* rightshift */ | |
326 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
327 | 32, /* bitsize */ | |
328 | TRUE, /* pc_relative */ | |
329 | 0, /* bitpos */ | |
330 | complain_overflow_bitfield, /* complain_on_overflow */ | |
331 | bfd_elf_generic_reloc, /* */ | |
332 | "R_MN10300_GOTPC32", /* name */ | |
333 | FALSE, /* partial_inplace */ | |
334 | 0xffffffff, /* src_mask */ | |
335 | 0xffffffff, /* dst_mask */ | |
336 | TRUE), /* pcrel_offset */ | |
337 | ||
338 | HOWTO (R_MN10300_GOTPC16, /* type */ | |
339 | 0, /* rightshift */ | |
340 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
341 | 16, /* bitsize */ | |
342 | TRUE, /* pc_relative */ | |
343 | 0, /* bitpos */ | |
344 | complain_overflow_bitfield, /* complain_on_overflow */ | |
345 | bfd_elf_generic_reloc, /* */ | |
346 | "R_MN10300_GOTPC16", /* name */ | |
347 | FALSE, /* partial_inplace */ | |
348 | 0xffff, /* src_mask */ | |
349 | 0xffff, /* dst_mask */ | |
350 | TRUE), /* pcrel_offset */ | |
351 | ||
352 | HOWTO (R_MN10300_GOTOFF32, /* type */ | |
353 | 0, /* rightshift */ | |
354 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
355 | 32, /* bitsize */ | |
356 | FALSE, /* pc_relative */ | |
357 | 0, /* bitpos */ | |
358 | complain_overflow_bitfield, /* complain_on_overflow */ | |
359 | bfd_elf_generic_reloc, /* */ | |
360 | "R_MN10300_GOTOFF32", /* name */ | |
361 | FALSE, /* partial_inplace */ | |
362 | 0xffffffff, /* src_mask */ | |
363 | 0xffffffff, /* dst_mask */ | |
364 | FALSE), /* pcrel_offset */ | |
365 | ||
366 | HOWTO (R_MN10300_GOTOFF24, /* type */ | |
367 | 0, /* rightshift */ | |
368 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
369 | 24, /* bitsize */ | |
370 | FALSE, /* pc_relative */ | |
371 | 0, /* bitpos */ | |
372 | complain_overflow_bitfield, /* complain_on_overflow */ | |
373 | bfd_elf_generic_reloc, /* */ | |
374 | "R_MN10300_GOTOFF24", /* name */ | |
375 | FALSE, /* partial_inplace */ | |
376 | 0xffffff, /* src_mask */ | |
377 | 0xffffff, /* dst_mask */ | |
378 | FALSE), /* pcrel_offset */ | |
379 | ||
380 | HOWTO (R_MN10300_GOTOFF16, /* type */ | |
381 | 0, /* rightshift */ | |
382 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
383 | 16, /* bitsize */ | |
384 | FALSE, /* pc_relative */ | |
385 | 0, /* bitpos */ | |
386 | complain_overflow_bitfield, /* complain_on_overflow */ | |
387 | bfd_elf_generic_reloc, /* */ | |
388 | "R_MN10300_GOTOFF16", /* name */ | |
389 | FALSE, /* partial_inplace */ | |
390 | 0xffff, /* src_mask */ | |
391 | 0xffff, /* dst_mask */ | |
392 | FALSE), /* pcrel_offset */ | |
393 | ||
394 | HOWTO (R_MN10300_PLT32, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
397 | 32, /* bitsize */ | |
398 | TRUE, /* pc_relative */ | |
399 | 0, /* bitpos */ | |
400 | complain_overflow_bitfield, /* complain_on_overflow */ | |
401 | bfd_elf_generic_reloc, /* */ | |
402 | "R_MN10300_PLT32", /* name */ | |
403 | FALSE, /* partial_inplace */ | |
404 | 0xffffffff, /* src_mask */ | |
405 | 0xffffffff, /* dst_mask */ | |
406 | TRUE), /* pcrel_offset */ | |
407 | ||
408 | HOWTO (R_MN10300_PLT16, /* type */ | |
409 | 0, /* rightshift */ | |
410 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
411 | 16, /* bitsize */ | |
412 | TRUE, /* pc_relative */ | |
413 | 0, /* bitpos */ | |
414 | complain_overflow_bitfield, /* complain_on_overflow */ | |
415 | bfd_elf_generic_reloc, /* */ | |
416 | "R_MN10300_PLT16", /* name */ | |
417 | FALSE, /* partial_inplace */ | |
418 | 0xffff, /* src_mask */ | |
419 | 0xffff, /* dst_mask */ | |
420 | TRUE), /* pcrel_offset */ | |
421 | ||
422 | HOWTO (R_MN10300_GOT32, /* type */ | |
423 | 0, /* rightshift */ | |
424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
425 | 32, /* bitsize */ | |
426 | FALSE, /* pc_relative */ | |
427 | 0, /* bitpos */ | |
428 | complain_overflow_bitfield, /* complain_on_overflow */ | |
429 | bfd_elf_generic_reloc, /* */ | |
430 | "R_MN10300_GOT32", /* name */ | |
431 | FALSE, /* partial_inplace */ | |
432 | 0xffffffff, /* src_mask */ | |
433 | 0xffffffff, /* dst_mask */ | |
434 | FALSE), /* pcrel_offset */ | |
435 | ||
436 | HOWTO (R_MN10300_GOT24, /* type */ | |
437 | 0, /* rightshift */ | |
438 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
439 | 24, /* bitsize */ | |
440 | FALSE, /* pc_relative */ | |
441 | 0, /* bitpos */ | |
442 | complain_overflow_bitfield, /* complain_on_overflow */ | |
443 | bfd_elf_generic_reloc, /* */ | |
444 | "R_MN10300_GOT24", /* name */ | |
445 | FALSE, /* partial_inplace */ | |
446 | 0xffffffff, /* src_mask */ | |
447 | 0xffffffff, /* dst_mask */ | |
448 | FALSE), /* pcrel_offset */ | |
449 | ||
450 | HOWTO (R_MN10300_GOT16, /* type */ | |
451 | 0, /* rightshift */ | |
452 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
453 | 16, /* bitsize */ | |
454 | FALSE, /* pc_relative */ | |
455 | 0, /* bitpos */ | |
456 | complain_overflow_bitfield, /* complain_on_overflow */ | |
457 | bfd_elf_generic_reloc, /* */ | |
458 | "R_MN10300_GOT16", /* name */ | |
459 | FALSE, /* partial_inplace */ | |
460 | 0xffffffff, /* src_mask */ | |
461 | 0xffffffff, /* dst_mask */ | |
462 | FALSE), /* pcrel_offset */ | |
463 | ||
464 | HOWTO (R_MN10300_COPY, /* type */ | |
465 | 0, /* rightshift */ | |
466 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
467 | 32, /* bitsize */ | |
468 | FALSE, /* pc_relative */ | |
469 | 0, /* bitpos */ | |
470 | complain_overflow_bitfield, /* complain_on_overflow */ | |
471 | bfd_elf_generic_reloc, /* */ | |
472 | "R_MN10300_COPY", /* name */ | |
473 | FALSE, /* partial_inplace */ | |
474 | 0xffffffff, /* src_mask */ | |
475 | 0xffffffff, /* dst_mask */ | |
476 | FALSE), /* pcrel_offset */ | |
477 | ||
478 | HOWTO (R_MN10300_GLOB_DAT, /* type */ | |
479 | 0, /* rightshift */ | |
480 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
481 | 32, /* bitsize */ | |
482 | FALSE, /* pc_relative */ | |
483 | 0, /* bitpos */ | |
484 | complain_overflow_bitfield, /* complain_on_overflow */ | |
485 | bfd_elf_generic_reloc, /* */ | |
486 | "R_MN10300_GLOB_DAT", /* name */ | |
487 | FALSE, /* partial_inplace */ | |
488 | 0xffffffff, /* src_mask */ | |
489 | 0xffffffff, /* dst_mask */ | |
490 | FALSE), /* pcrel_offset */ | |
491 | ||
492 | HOWTO (R_MN10300_JMP_SLOT, /* type */ | |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 32, /* bitsize */ | |
496 | FALSE, /* pc_relative */ | |
497 | 0, /* bitpos */ | |
498 | complain_overflow_bitfield, /* complain_on_overflow */ | |
499 | bfd_elf_generic_reloc, /* */ | |
500 | "R_MN10300_JMP_SLOT", /* name */ | |
501 | FALSE, /* partial_inplace */ | |
502 | 0xffffffff, /* src_mask */ | |
503 | 0xffffffff, /* dst_mask */ | |
504 | FALSE), /* pcrel_offset */ | |
505 | ||
506 | HOWTO (R_MN10300_RELATIVE, /* type */ | |
507 | 0, /* rightshift */ | |
508 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
509 | 32, /* bitsize */ | |
510 | FALSE, /* pc_relative */ | |
511 | 0, /* bitpos */ | |
512 | complain_overflow_bitfield, /* complain_on_overflow */ | |
513 | bfd_elf_generic_reloc, /* */ | |
514 | "R_MN10300_RELATIVE", /* name */ | |
515 | FALSE, /* partial_inplace */ | |
516 | 0xffffffff, /* src_mask */ | |
517 | 0xffffffff, /* dst_mask */ | |
518 | FALSE), /* pcrel_offset */ | |
519 | ||
252b5132 RH |
520 | }; |
521 | ||
010ac81f | 522 | struct mn10300_reloc_map { |
252b5132 RH |
523 | bfd_reloc_code_real_type bfd_reloc_val; |
524 | unsigned char elf_reloc_val; | |
525 | }; | |
526 | ||
010ac81f | 527 | static const struct mn10300_reloc_map mn10300_reloc_map[] = { |
252b5132 RH |
528 | { BFD_RELOC_NONE, R_MN10300_NONE, }, |
529 | { BFD_RELOC_32, R_MN10300_32, }, | |
530 | { BFD_RELOC_16, R_MN10300_16, }, | |
531 | { BFD_RELOC_8, R_MN10300_8, }, | |
532 | { BFD_RELOC_32_PCREL, R_MN10300_PCREL32, }, | |
533 | { BFD_RELOC_16_PCREL, R_MN10300_PCREL16, }, | |
534 | { BFD_RELOC_8_PCREL, R_MN10300_PCREL8, }, | |
535 | { BFD_RELOC_24, R_MN10300_24, }, | |
536 | { BFD_RELOC_VTABLE_INHERIT, R_MN10300_GNU_VTINHERIT }, | |
537 | { BFD_RELOC_VTABLE_ENTRY, R_MN10300_GNU_VTENTRY }, | |
03a12831 AO |
538 | { BFD_RELOC_32_GOT_PCREL, R_MN10300_GOTPC32 }, |
539 | { BFD_RELOC_16_GOT_PCREL, R_MN10300_GOTPC16 }, | |
540 | { BFD_RELOC_32_GOTOFF, R_MN10300_GOTOFF32 }, | |
541 | { BFD_RELOC_MN10300_GOTOFF24, R_MN10300_GOTOFF24 }, | |
542 | { BFD_RELOC_16_GOTOFF, R_MN10300_GOTOFF16 }, | |
543 | { BFD_RELOC_32_PLT_PCREL, R_MN10300_PLT32 }, | |
544 | { BFD_RELOC_16_PLT_PCREL, R_MN10300_PLT16 }, | |
545 | { BFD_RELOC_MN10300_GOT32, R_MN10300_GOT32 }, | |
546 | { BFD_RELOC_MN10300_GOT24, R_MN10300_GOT24 }, | |
547 | { BFD_RELOC_MN10300_GOT16, R_MN10300_GOT16 }, | |
548 | { BFD_RELOC_MN10300_COPY, R_MN10300_COPY }, | |
549 | { BFD_RELOC_MN10300_GLOB_DAT, R_MN10300_GLOB_DAT }, | |
550 | { BFD_RELOC_MN10300_JMP_SLOT, R_MN10300_JMP_SLOT }, | |
551 | { BFD_RELOC_MN10300_RELATIVE, R_MN10300_RELATIVE }, | |
252b5132 RH |
552 | }; |
553 | ||
03a12831 AO |
554 | /* Create the GOT section. */ |
555 | ||
556 | static bfd_boolean | |
557 | _bfd_mn10300_elf_create_got_section (abfd, info) | |
558 | bfd * abfd; | |
559 | struct bfd_link_info * info; | |
560 | { | |
561 | flagword flags; | |
562 | flagword pltflags; | |
563 | asection * s; | |
140fae3f | 564 | struct bfd_link_hash_entry * bh; |
03a12831 | 565 | struct elf_link_hash_entry * h; |
9c5bfbb7 | 566 | const struct elf_backend_data * bed = get_elf_backend_data (abfd); |
03a12831 AO |
567 | int ptralign; |
568 | ||
569 | /* This function may be called more than once. */ | |
570 | if (bfd_get_section_by_name (abfd, ".got") != NULL) | |
571 | return TRUE; | |
572 | ||
573 | switch (bed->s->arch_size) | |
574 | { | |
575 | case 32: | |
576 | ptralign = 2; | |
577 | break; | |
578 | ||
579 | case 64: | |
580 | ptralign = 3; | |
581 | break; | |
582 | ||
583 | default: | |
584 | bfd_set_error (bfd_error_bad_value); | |
585 | return FALSE; | |
586 | } | |
587 | ||
588 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
589 | | SEC_LINKER_CREATED); | |
590 | ||
591 | pltflags = flags; | |
592 | pltflags |= SEC_CODE; | |
593 | if (bed->plt_not_loaded) | |
594 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
595 | if (bed->plt_readonly) | |
596 | pltflags |= SEC_READONLY; | |
597 | ||
598 | s = bfd_make_section (abfd, ".plt"); | |
599 | if (s == NULL | |
600 | || ! bfd_set_section_flags (abfd, s, pltflags) | |
601 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
602 | return FALSE; | |
603 | ||
604 | if (bed->want_plt_sym) | |
605 | { | |
606 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
607 | .plt section. */ | |
140fae3f | 608 | bh = NULL; |
03a12831 AO |
609 | if (! (_bfd_generic_link_add_one_symbol |
610 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
611 | (bfd_vma) 0, (const char *) NULL, FALSE, | |
140fae3f | 612 | get_elf_backend_data (abfd)->collect, &bh))) |
03a12831 | 613 | return FALSE; |
140fae3f | 614 | h = (struct elf_link_hash_entry *) bh; |
03a12831 AO |
615 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; |
616 | h->type = STT_OBJECT; | |
617 | ||
618 | if (info->shared | |
c152c796 | 619 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
03a12831 AO |
620 | return FALSE; |
621 | } | |
622 | ||
623 | s = bfd_make_section (abfd, ".got"); | |
624 | if (s == NULL | |
625 | || ! bfd_set_section_flags (abfd, s, flags) | |
626 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
627 | return FALSE; | |
628 | ||
629 | if (bed->want_got_plt) | |
630 | { | |
631 | s = bfd_make_section (abfd, ".got.plt"); | |
632 | if (s == NULL | |
633 | || ! bfd_set_section_flags (abfd, s, flags) | |
634 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
635 | return FALSE; | |
636 | } | |
637 | ||
638 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
639 | (or .got.plt) section. We don't do this in the linker script | |
640 | because we don't want to define the symbol if we are not creating | |
641 | a global offset table. */ | |
140fae3f | 642 | bh = NULL; |
03a12831 AO |
643 | if (!(_bfd_generic_link_add_one_symbol |
644 | (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, | |
645 | bed->got_symbol_offset, (const char *) NULL, FALSE, | |
140fae3f | 646 | bed->collect, &bh))) |
03a12831 | 647 | return FALSE; |
140fae3f | 648 | h = (struct elf_link_hash_entry *) bh; |
03a12831 AO |
649 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; |
650 | h->type = STT_OBJECT; | |
651 | ||
652 | if (info->shared | |
c152c796 | 653 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
03a12831 AO |
654 | return FALSE; |
655 | ||
656 | elf_hash_table (info)->hgot = h; | |
657 | ||
658 | /* The first bit of the global offset table is the header. */ | |
eea6121a | 659 | s->size += bed->got_header_size + bed->got_symbol_offset; |
03a12831 AO |
660 | |
661 | return TRUE; | |
662 | } | |
663 | ||
252b5132 RH |
664 | static reloc_howto_type * |
665 | bfd_elf32_bfd_reloc_type_lookup (abfd, code) | |
5f771d47 | 666 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
667 | bfd_reloc_code_real_type code; |
668 | { | |
669 | unsigned int i; | |
670 | ||
671 | for (i = 0; | |
672 | i < sizeof (mn10300_reloc_map) / sizeof (struct mn10300_reloc_map); | |
673 | i++) | |
674 | { | |
675 | if (mn10300_reloc_map[i].bfd_reloc_val == code) | |
676 | return &elf_mn10300_howto_table[mn10300_reloc_map[i].elf_reloc_val]; | |
677 | } | |
678 | ||
679 | return NULL; | |
680 | } | |
681 | ||
682 | /* Set the howto pointer for an MN10300 ELF reloc. */ | |
683 | ||
684 | static void | |
685 | mn10300_info_to_howto (abfd, cache_ptr, dst) | |
5f771d47 | 686 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 687 | arelent *cache_ptr; |
947216bf | 688 | Elf_Internal_Rela *dst; |
252b5132 RH |
689 | { |
690 | unsigned int r_type; | |
691 | ||
692 | r_type = ELF32_R_TYPE (dst->r_info); | |
693 | BFD_ASSERT (r_type < (unsigned int) R_MN10300_MAX); | |
694 | cache_ptr->howto = &elf_mn10300_howto_table[r_type]; | |
695 | } | |
696 | ||
697 | /* Look through the relocs for a section during the first phase. | |
698 | Since we don't do .gots or .plts, we just need to consider the | |
699 | virtual table relocs for gc. */ | |
700 | ||
b34976b6 | 701 | static bfd_boolean |
252b5132 RH |
702 | mn10300_elf_check_relocs (abfd, info, sec, relocs) |
703 | bfd *abfd; | |
704 | struct bfd_link_info *info; | |
705 | asection *sec; | |
706 | const Elf_Internal_Rela *relocs; | |
707 | { | |
708 | Elf_Internal_Shdr *symtab_hdr; | |
709 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
710 | const Elf_Internal_Rela *rel; | |
711 | const Elf_Internal_Rela *rel_end; | |
03a12831 AO |
712 | bfd * dynobj; |
713 | bfd_vma * local_got_offsets; | |
714 | asection * sgot; | |
715 | asection * srelgot; | |
716 | asection * sreloc; | |
717 | ||
718 | sgot = NULL; | |
719 | srelgot = NULL; | |
720 | sreloc = NULL; | |
252b5132 | 721 | |
1049f94e | 722 | if (info->relocatable) |
b34976b6 | 723 | return TRUE; |
252b5132 RH |
724 | |
725 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
726 | sym_hashes = elf_sym_hashes (abfd); | |
a7c10850 | 727 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym); |
252b5132 RH |
728 | if (!elf_bad_symtab (abfd)) |
729 | sym_hashes_end -= symtab_hdr->sh_info; | |
730 | ||
03a12831 AO |
731 | dynobj = elf_hash_table (info)->dynobj; |
732 | local_got_offsets = elf_local_got_offsets (abfd); | |
252b5132 RH |
733 | rel_end = relocs + sec->reloc_count; |
734 | for (rel = relocs; rel < rel_end; rel++) | |
735 | { | |
736 | struct elf_link_hash_entry *h; | |
737 | unsigned long r_symndx; | |
738 | ||
739 | r_symndx = ELF32_R_SYM (rel->r_info); | |
740 | if (r_symndx < symtab_hdr->sh_info) | |
741 | h = NULL; | |
742 | else | |
743 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
744 | ||
03a12831 AO |
745 | /* Some relocs require a global offset table. */ |
746 | if (dynobj == NULL) | |
747 | { | |
748 | switch (ELF32_R_TYPE (rel->r_info)) | |
749 | { | |
750 | case R_MN10300_GOT32: | |
751 | case R_MN10300_GOT24: | |
752 | case R_MN10300_GOT16: | |
753 | case R_MN10300_GOTOFF32: | |
754 | case R_MN10300_GOTOFF24: | |
755 | case R_MN10300_GOTOFF16: | |
756 | case R_MN10300_GOTPC32: | |
757 | case R_MN10300_GOTPC16: | |
758 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
759 | if (! _bfd_mn10300_elf_create_got_section (dynobj, info)) | |
760 | return FALSE; | |
761 | break; | |
762 | ||
763 | default: | |
764 | break; | |
765 | } | |
766 | } | |
767 | ||
252b5132 RH |
768 | switch (ELF32_R_TYPE (rel->r_info)) |
769 | { | |
770 | /* This relocation describes the C++ object vtable hierarchy. | |
771 | Reconstruct it for later use during GC. */ | |
772 | case R_MN10300_GNU_VTINHERIT: | |
c152c796 | 773 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 774 | return FALSE; |
252b5132 RH |
775 | break; |
776 | ||
777 | /* This relocation describes which C++ vtable entries are actually | |
778 | used. Record for later use during GC. */ | |
779 | case R_MN10300_GNU_VTENTRY: | |
c152c796 | 780 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
b34976b6 | 781 | return FALSE; |
252b5132 | 782 | break; |
03a12831 AO |
783 | case R_MN10300_GOT32: |
784 | case R_MN10300_GOT24: | |
785 | case R_MN10300_GOT16: | |
786 | /* This symbol requires a global offset table entry. */ | |
787 | ||
788 | if (sgot == NULL) | |
789 | { | |
790 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
791 | BFD_ASSERT (sgot != NULL); | |
792 | } | |
793 | ||
794 | if (srelgot == NULL | |
795 | && (h != NULL || info->shared)) | |
796 | { | |
797 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
798 | if (srelgot == NULL) | |
799 | { | |
800 | srelgot = bfd_make_section (dynobj, ".rela.got"); | |
801 | if (srelgot == NULL | |
802 | || ! bfd_set_section_flags (dynobj, srelgot, | |
803 | (SEC_ALLOC | |
804 | | SEC_LOAD | |
805 | | SEC_HAS_CONTENTS | |
806 | | SEC_IN_MEMORY | |
807 | | SEC_LINKER_CREATED | |
808 | | SEC_READONLY)) | |
809 | || ! bfd_set_section_alignment (dynobj, srelgot, 2)) | |
810 | return FALSE; | |
811 | } | |
812 | } | |
813 | ||
814 | if (h != NULL) | |
815 | { | |
816 | if (h->got.offset != (bfd_vma) -1) | |
817 | /* We have already allocated space in the .got. */ | |
818 | break; | |
819 | ||
eea6121a | 820 | h->got.offset = sgot->size; |
03a12831 AO |
821 | |
822 | /* Make sure this symbol is output as a dynamic symbol. */ | |
823 | if (h->dynindx == -1) | |
824 | { | |
c152c796 | 825 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
03a12831 AO |
826 | return FALSE; |
827 | } | |
828 | ||
eea6121a | 829 | srelgot->size += sizeof (Elf32_External_Rela); |
03a12831 AO |
830 | } |
831 | else | |
832 | { | |
833 | /* This is a global offset table entry for a local | |
834 | symbol. */ | |
835 | if (local_got_offsets == NULL) | |
836 | { | |
837 | size_t size; | |
838 | unsigned int i; | |
839 | ||
840 | size = symtab_hdr->sh_info * sizeof (bfd_vma); | |
841 | local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size); | |
842 | ||
843 | if (local_got_offsets == NULL) | |
844 | return FALSE; | |
845 | elf_local_got_offsets (abfd) = local_got_offsets; | |
846 | ||
847 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
848 | local_got_offsets[i] = (bfd_vma) -1; | |
849 | } | |
850 | ||
851 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
852 | /* We have already allocated space in the .got. */ | |
853 | break; | |
854 | ||
eea6121a | 855 | local_got_offsets[r_symndx] = sgot->size; |
03a12831 AO |
856 | |
857 | if (info->shared) | |
858 | /* If we are generating a shared object, we need to | |
859 | output a R_MN10300_RELATIVE reloc so that the dynamic | |
860 | linker can adjust this GOT entry. */ | |
eea6121a | 861 | srelgot->size += sizeof (Elf32_External_Rela); |
03a12831 AO |
862 | } |
863 | ||
eea6121a | 864 | sgot->size += 4; |
03a12831 AO |
865 | |
866 | break; | |
867 | ||
868 | case R_MN10300_PLT32: | |
869 | case R_MN10300_PLT16: | |
870 | /* This symbol requires a procedure linkage table entry. We | |
871 | actually build the entry in adjust_dynamic_symbol, | |
872 | because this might be a case of linking PIC code which is | |
873 | never referenced by a dynamic object, in which case we | |
874 | don't need to generate a procedure linkage table entry | |
875 | after all. */ | |
876 | ||
877 | /* If this is a local symbol, we resolve it directly without | |
878 | creating a procedure linkage table entry. */ | |
879 | if (h == NULL) | |
880 | continue; | |
881 | ||
882 | if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
883 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) | |
884 | break; | |
885 | ||
886 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
887 | ||
888 | break; | |
889 | ||
890 | case R_MN10300_32: | |
891 | case R_MN10300_24: | |
892 | case R_MN10300_16: | |
893 | case R_MN10300_8: | |
894 | case R_MN10300_PCREL32: | |
895 | case R_MN10300_PCREL16: | |
896 | case R_MN10300_PCREL8: | |
897 | if (h != NULL) | |
898 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
899 | ||
900 | /* If we are creating a shared library, and this is a reloc | |
901 | against a global symbol, or a non PC relative reloc | |
902 | against a local symbol, then we need to copy the reloc | |
903 | into the shared library. However, if we are linking with | |
904 | -Bsymbolic, we do not need to copy a reloc against a | |
905 | global symbol which is defined in an object we are | |
906 | including in the link (i.e., DEF_REGULAR is set). At | |
907 | this point we have not seen all the input files, so it is | |
908 | possible that DEF_REGULAR is not set now but will be set | |
909 | later (it is never cleared). We account for that | |
910 | possibility below by storing information in the | |
911 | pcrel_relocs_copied field of the hash table entry. */ | |
912 | if (info->shared | |
913 | && (sec->flags & SEC_ALLOC) != 0 | |
914 | && (! (elf_mn10300_howto_table[ELF32_R_TYPE (rel->r_info)] | |
915 | .pc_relative) | |
916 | || (h != NULL | |
917 | && (! info->symbolic | |
918 | || h->root.type == bfd_link_hash_defweak | |
919 | || (h->elf_link_hash_flags | |
920 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
921 | { | |
922 | /* When creating a shared object, we must copy these | |
923 | reloc types into the output file. We create a reloc | |
924 | section in dynobj and make room for this reloc. */ | |
925 | if (sreloc == NULL) | |
926 | { | |
927 | const char * name; | |
928 | ||
929 | name = (bfd_elf_string_from_elf_section | |
930 | (abfd, | |
931 | elf_elfheader (abfd)->e_shstrndx, | |
932 | elf_section_data (sec)->rel_hdr.sh_name)); | |
933 | if (name == NULL) | |
934 | return FALSE; | |
935 | ||
936 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
937 | && strcmp (bfd_get_section_name (abfd, sec), | |
938 | name + 5) == 0); | |
939 | ||
940 | sreloc = bfd_get_section_by_name (dynobj, name); | |
941 | if (sreloc == NULL) | |
942 | { | |
943 | flagword flags; | |
944 | ||
945 | sreloc = bfd_make_section (dynobj, name); | |
946 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
947 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
948 | if ((sec->flags & SEC_ALLOC) != 0) | |
949 | flags |= SEC_ALLOC | SEC_LOAD; | |
950 | if (sreloc == NULL | |
951 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
952 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) | |
953 | return FALSE; | |
954 | } | |
955 | } | |
956 | ||
eea6121a | 957 | sreloc->size += sizeof (Elf32_External_Rela); |
03a12831 AO |
958 | |
959 | /* If we are linking with -Bsymbolic, and this is a | |
960 | global symbol, we count the number of PC relative | |
961 | relocations we have entered for this symbol, so that | |
962 | we can discard them again if the symbol is later | |
963 | defined by a regular object. Note that this function | |
964 | is only called if we are using an elf_sh linker | |
965 | hash table, which means that h is really a pointer to | |
966 | an elf32_mn10300_link_hash_entry. */ | |
967 | if (h != NULL | |
968 | && (elf_mn10300_howto_table[ELF32_R_TYPE (rel->r_info)] | |
969 | .pc_relative)) | |
970 | { | |
971 | struct elf32_mn10300_link_hash_entry *eh; | |
972 | struct elf_mn10300_pcrel_relocs_copied *p; | |
973 | ||
974 | eh = (struct elf32_mn10300_link_hash_entry *) h; | |
975 | ||
976 | for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) | |
977 | if (p->section == sreloc) | |
978 | break; | |
979 | ||
980 | if (p == NULL) | |
981 | { | |
982 | p = ((struct elf_mn10300_pcrel_relocs_copied *) | |
983 | bfd_alloc (dynobj, sizeof *p)); | |
984 | if (p == NULL) | |
985 | return FALSE; | |
986 | ||
987 | p->next = eh->pcrel_relocs_copied; | |
988 | eh->pcrel_relocs_copied = p; | |
989 | p->section = sreloc; | |
990 | p->count = 0; | |
991 | } | |
992 | ||
993 | ++p->count; | |
994 | } | |
995 | } | |
996 | ||
997 | break; | |
252b5132 RH |
998 | } |
999 | } | |
1000 | ||
b34976b6 | 1001 | return TRUE; |
252b5132 RH |
1002 | } |
1003 | ||
1004 | /* Return the section that should be marked against GC for a given | |
1005 | relocation. */ | |
1006 | ||
1007 | static asection * | |
1e2f5b6e AM |
1008 | mn10300_elf_gc_mark_hook (sec, info, rel, h, sym) |
1009 | asection *sec; | |
5f771d47 | 1010 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1011 | Elf_Internal_Rela *rel; |
1012 | struct elf_link_hash_entry *h; | |
1013 | Elf_Internal_Sym *sym; | |
1014 | { | |
1015 | if (h != NULL) | |
1016 | { | |
1017 | switch (ELF32_R_TYPE (rel->r_info)) | |
1018 | { | |
1019 | case R_MN10300_GNU_VTINHERIT: | |
1020 | case R_MN10300_GNU_VTENTRY: | |
1021 | break; | |
1022 | ||
1023 | default: | |
1024 | switch (h->root.type) | |
1025 | { | |
1026 | case bfd_link_hash_defined: | |
1027 | case bfd_link_hash_defweak: | |
1028 | return h->root.u.def.section; | |
1029 | ||
1030 | case bfd_link_hash_common: | |
1031 | return h->root.u.c.p->section; | |
e049a0de ILT |
1032 | |
1033 | default: | |
1034 | break; | |
252b5132 RH |
1035 | } |
1036 | } | |
1037 | } | |
1038 | else | |
1e2f5b6e | 1039 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
252b5132 RH |
1040 | |
1041 | return NULL; | |
1042 | } | |
1043 | ||
1044 | /* Perform a relocation as part of a final link. */ | |
1045 | static bfd_reloc_status_type | |
1046 | mn10300_elf_final_link_relocate (howto, input_bfd, output_bfd, | |
1047 | input_section, contents, offset, value, | |
03a12831 | 1048 | addend, h, symndx, info, sym_sec, is_local) |
252b5132 RH |
1049 | reloc_howto_type *howto; |
1050 | bfd *input_bfd; | |
5f771d47 | 1051 | bfd *output_bfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1052 | asection *input_section; |
1053 | bfd_byte *contents; | |
1054 | bfd_vma offset; | |
1055 | bfd_vma value; | |
1056 | bfd_vma addend; | |
03a12831 AO |
1057 | struct elf_link_hash_entry * h; |
1058 | unsigned long symndx; | |
eea6121a | 1059 | struct bfd_link_info *info; |
5f771d47 ILT |
1060 | asection *sym_sec ATTRIBUTE_UNUSED; |
1061 | int is_local ATTRIBUTE_UNUSED; | |
252b5132 RH |
1062 | { |
1063 | unsigned long r_type = howto->type; | |
1064 | bfd_byte *hit_data = contents + offset; | |
03a12831 AO |
1065 | bfd * dynobj; |
1066 | bfd_vma * local_got_offsets; | |
1067 | asection * sgot; | |
1068 | asection * splt; | |
1069 | asection * sreloc; | |
1070 | ||
1071 | dynobj = elf_hash_table (info)->dynobj; | |
1072 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1073 | ||
1074 | sgot = NULL; | |
1075 | splt = NULL; | |
1076 | sreloc = NULL; | |
252b5132 RH |
1077 | |
1078 | switch (r_type) | |
1079 | { | |
1080 | case R_MN10300_NONE: | |
1081 | return bfd_reloc_ok; | |
1082 | ||
1083 | case R_MN10300_32: | |
03a12831 AO |
1084 | if (info->shared |
1085 | && (input_section->flags & SEC_ALLOC) != 0) | |
1086 | { | |
1087 | Elf_Internal_Rela outrel; | |
1088 | bfd_boolean skip, relocate; | |
1089 | ||
1090 | /* When generating a shared object, these relocations are | |
1091 | copied into the output file to be resolved at run | |
1092 | time. */ | |
1093 | if (sreloc == NULL) | |
1094 | { | |
1095 | const char * name; | |
1096 | ||
1097 | name = (bfd_elf_string_from_elf_section | |
1098 | (input_bfd, | |
1099 | elf_elfheader (input_bfd)->e_shstrndx, | |
1100 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
1101 | if (name == NULL) | |
1102 | return FALSE; | |
1103 | ||
1104 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1105 | && strcmp (bfd_get_section_name (input_bfd, | |
1106 | input_section), | |
1107 | name + 5) == 0); | |
1108 | ||
1109 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1110 | BFD_ASSERT (sreloc != NULL); | |
1111 | } | |
1112 | ||
1113 | skip = FALSE; | |
1114 | ||
eea6121a AM |
1115 | outrel.r_offset = _bfd_elf_section_offset (input_bfd, info, |
1116 | input_section, offset); | |
1117 | if (outrel.r_offset == (bfd_vma) -1) | |
1118 | skip = TRUE; | |
03a12831 AO |
1119 | |
1120 | outrel.r_offset += (input_section->output_section->vma | |
1121 | + input_section->output_offset); | |
1122 | ||
1123 | if (skip) | |
1124 | { | |
1125 | memset (&outrel, 0, sizeof outrel); | |
1126 | relocate = FALSE; | |
1127 | } | |
1128 | else | |
1129 | { | |
1130 | /* h->dynindx may be -1 if this symbol was marked to | |
1131 | become local. */ | |
1132 | if (h == NULL | |
1133 | || ((info->symbolic || h->dynindx == -1) | |
1134 | && (h->elf_link_hash_flags | |
1135 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
1136 | { | |
1137 | relocate = TRUE; | |
1138 | outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE); | |
1139 | outrel.r_addend = value + addend; | |
1140 | } | |
1141 | else | |
1142 | { | |
1143 | BFD_ASSERT (h->dynindx != -1); | |
1144 | relocate = FALSE; | |
1145 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_32); | |
1146 | outrel.r_addend = value + addend; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
560e09e9 NC |
1151 | (bfd_byte *) (((Elf32_External_Rela *) sreloc->contents) |
1152 | + sreloc->reloc_count)); | |
03a12831 AO |
1153 | ++sreloc->reloc_count; |
1154 | ||
1155 | /* If this reloc is against an external symbol, we do | |
1156 | not want to fiddle with the addend. Otherwise, we | |
1157 | need to include the symbol value so that it becomes | |
1158 | an addend for the dynamic reloc. */ | |
1159 | if (! relocate) | |
1160 | return bfd_reloc_ok; | |
1161 | } | |
252b5132 RH |
1162 | value += addend; |
1163 | bfd_put_32 (input_bfd, value, hit_data); | |
1164 | return bfd_reloc_ok; | |
1165 | ||
1166 | case R_MN10300_24: | |
1167 | value += addend; | |
1168 | ||
010ac81f | 1169 | if ((long) value > 0x7fffff || (long) value < -0x800000) |
252b5132 RH |
1170 | return bfd_reloc_overflow; |
1171 | ||
1172 | bfd_put_8 (input_bfd, value & 0xff, hit_data); | |
1173 | bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1); | |
1174 | bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2); | |
1175 | return bfd_reloc_ok; | |
1176 | ||
1177 | case R_MN10300_16: | |
1178 | value += addend; | |
1179 | ||
010ac81f | 1180 | if ((long) value > 0x7fff || (long) value < -0x8000) |
252b5132 RH |
1181 | return bfd_reloc_overflow; |
1182 | ||
1183 | bfd_put_16 (input_bfd, value, hit_data); | |
1184 | return bfd_reloc_ok; | |
1185 | ||
1186 | case R_MN10300_8: | |
1187 | value += addend; | |
1188 | ||
010ac81f | 1189 | if ((long) value > 0x7f || (long) value < -0x80) |
252b5132 RH |
1190 | return bfd_reloc_overflow; |
1191 | ||
1192 | bfd_put_8 (input_bfd, value, hit_data); | |
1193 | return bfd_reloc_ok; | |
1194 | ||
1195 | case R_MN10300_PCREL8: | |
1196 | value -= (input_section->output_section->vma | |
1197 | + input_section->output_offset); | |
1198 | value -= offset; | |
1199 | value += addend; | |
1200 | ||
010ac81f | 1201 | if ((long) value > 0xff || (long) value < -0x100) |
252b5132 RH |
1202 | return bfd_reloc_overflow; |
1203 | ||
1204 | bfd_put_8 (input_bfd, value, hit_data); | |
1205 | return bfd_reloc_ok; | |
1206 | ||
1207 | case R_MN10300_PCREL16: | |
1208 | value -= (input_section->output_section->vma | |
1209 | + input_section->output_offset); | |
1210 | value -= offset; | |
1211 | value += addend; | |
1212 | ||
010ac81f | 1213 | if ((long) value > 0xffff || (long) value < -0x10000) |
252b5132 RH |
1214 | return bfd_reloc_overflow; |
1215 | ||
1216 | bfd_put_16 (input_bfd, value, hit_data); | |
1217 | return bfd_reloc_ok; | |
1218 | ||
1219 | case R_MN10300_PCREL32: | |
03a12831 AO |
1220 | if (info->shared |
1221 | && (input_section->flags & SEC_ALLOC) != 0 | |
1222 | && h != NULL | |
1223 | && h->dynindx != -1 | |
1224 | && (! info->symbolic | |
1225 | || (h->elf_link_hash_flags | |
1226 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1227 | { | |
1228 | Elf_Internal_Rela outrel; | |
1229 | bfd_boolean skip; | |
1230 | ||
1231 | /* When generating a shared object, these relocations | |
1232 | are copied into the output file to be resolved at run | |
1233 | time. */ | |
1234 | ||
1235 | if (sreloc == NULL) | |
1236 | { | |
1237 | const char * name; | |
1238 | ||
1239 | name = (bfd_elf_string_from_elf_section | |
1240 | (input_bfd, | |
1241 | elf_elfheader (input_bfd)->e_shstrndx, | |
1242 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
1243 | if (name == NULL) | |
1244 | return FALSE; | |
1245 | ||
1246 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1247 | && strcmp (bfd_get_section_name (input_bfd, | |
1248 | input_section), | |
1249 | name + 5) == 0); | |
1250 | ||
1251 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1252 | BFD_ASSERT (sreloc != NULL); | |
1253 | } | |
1254 | ||
1255 | skip = FALSE; | |
eea6121a AM |
1256 | outrel.r_offset = _bfd_elf_section_offset (input_bfd, info, |
1257 | input_section, offset); | |
1258 | if (outrel.r_offset == (bfd_vma) -1) | |
1259 | skip = TRUE; | |
03a12831 AO |
1260 | |
1261 | outrel.r_offset += (input_section->output_section->vma | |
1262 | + input_section->output_offset); | |
1263 | ||
1264 | if (skip) | |
1265 | memset (&outrel, 0, sizeof outrel); | |
1266 | else | |
1267 | { | |
1268 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
1269 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_PCREL32); | |
1270 | outrel.r_addend = addend; | |
1271 | } | |
1272 | ||
1273 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
560e09e9 NC |
1274 | (bfd_byte *) (((Elf32_External_Rela *) |
1275 | sreloc->contents) | |
1276 | + sreloc->reloc_count)); | |
03a12831 AO |
1277 | ++sreloc->reloc_count; |
1278 | ||
1279 | return bfd_reloc_ok; | |
1280 | } | |
1281 | ||
252b5132 RH |
1282 | value -= (input_section->output_section->vma |
1283 | + input_section->output_offset); | |
1284 | value -= offset; | |
1285 | value += addend; | |
1286 | ||
1287 | bfd_put_32 (input_bfd, value, hit_data); | |
1288 | return bfd_reloc_ok; | |
1289 | ||
1290 | case R_MN10300_GNU_VTINHERIT: | |
1291 | case R_MN10300_GNU_VTENTRY: | |
1292 | return bfd_reloc_ok; | |
1293 | ||
03a12831 AO |
1294 | case R_MN10300_GOTPC32: |
1295 | /* Use global offset table as symbol value. */ | |
1296 | ||
1297 | value = bfd_get_section_by_name (dynobj, | |
1298 | ".got")->output_section->vma; | |
1299 | value -= (input_section->output_section->vma | |
1300 | + input_section->output_offset); | |
1301 | value -= offset; | |
1302 | value += addend; | |
1303 | ||
1304 | bfd_put_32 (input_bfd, value, hit_data); | |
1305 | return bfd_reloc_ok; | |
1306 | ||
1307 | case R_MN10300_GOTPC16: | |
1308 | /* Use global offset table as symbol value. */ | |
1309 | ||
1310 | value = bfd_get_section_by_name (dynobj, | |
1311 | ".got")->output_section->vma; | |
1312 | value -= (input_section->output_section->vma | |
1313 | + input_section->output_offset); | |
1314 | value -= offset; | |
1315 | value += addend; | |
1316 | ||
1317 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1318 | return bfd_reloc_overflow; | |
1319 | ||
1320 | bfd_put_16 (input_bfd, value, hit_data); | |
1321 | return bfd_reloc_ok; | |
1322 | ||
1323 | case R_MN10300_GOTOFF32: | |
1324 | value -= bfd_get_section_by_name (dynobj, | |
1325 | ".got")->output_section->vma; | |
1326 | value += addend; | |
1327 | ||
1328 | bfd_put_32 (input_bfd, value, hit_data); | |
1329 | return bfd_reloc_ok; | |
1330 | ||
1331 | case R_MN10300_GOTOFF24: | |
1332 | value -= bfd_get_section_by_name (dynobj, | |
1333 | ".got")->output_section->vma; | |
1334 | value += addend; | |
1335 | ||
1336 | if ((long) value > 0x7fffff || (long) value < -0x800000) | |
1337 | return bfd_reloc_overflow; | |
1338 | ||
1339 | bfd_put_8 (input_bfd, value, hit_data); | |
1340 | bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1); | |
1341 | bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2); | |
1342 | return bfd_reloc_ok; | |
1343 | ||
1344 | case R_MN10300_GOTOFF16: | |
1345 | value -= bfd_get_section_by_name (dynobj, | |
1346 | ".got")->output_section->vma; | |
1347 | value += addend; | |
1348 | ||
1349 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1350 | return bfd_reloc_overflow; | |
1351 | ||
1352 | bfd_put_16 (input_bfd, value, hit_data); | |
1353 | return bfd_reloc_ok; | |
1354 | ||
1355 | case R_MN10300_PLT32: | |
1356 | if (h != NULL | |
1357 | && ELF_ST_VISIBILITY (h->other) != STV_INTERNAL | |
1358 | && ELF_ST_VISIBILITY (h->other) != STV_HIDDEN | |
1359 | && h->plt.offset != (bfd_vma) -1) | |
1360 | { | |
1361 | asection * splt; | |
1362 | ||
1363 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1364 | ||
1365 | value = (splt->output_section->vma | |
1366 | + splt->output_offset | |
1367 | + h->plt.offset) - value; | |
1368 | } | |
1369 | ||
1370 | value -= (input_section->output_section->vma | |
1371 | + input_section->output_offset); | |
1372 | value -= offset; | |
1373 | value += addend; | |
1374 | ||
1375 | bfd_put_32 (input_bfd, value, hit_data); | |
1376 | return bfd_reloc_ok; | |
1377 | ||
1378 | case R_MN10300_PLT16: | |
1379 | if (h != NULL | |
1380 | && ELF_ST_VISIBILITY (h->other) != STV_INTERNAL | |
1381 | && ELF_ST_VISIBILITY (h->other) != STV_HIDDEN | |
1382 | && h->plt.offset != (bfd_vma) -1) | |
1383 | { | |
1384 | asection * splt; | |
1385 | ||
1386 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1387 | ||
1388 | value = (splt->output_section->vma | |
1389 | + splt->output_offset | |
1390 | + h->plt.offset) - value; | |
1391 | } | |
1392 | ||
1393 | value -= (input_section->output_section->vma | |
1394 | + input_section->output_offset); | |
1395 | value -= offset; | |
1396 | value += addend; | |
1397 | ||
1398 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1399 | return bfd_reloc_overflow; | |
1400 | ||
1401 | bfd_put_16 (input_bfd, value, hit_data); | |
1402 | return bfd_reloc_ok; | |
1403 | ||
1404 | case R_MN10300_GOT32: | |
1405 | case R_MN10300_GOT24: | |
1406 | case R_MN10300_GOT16: | |
1407 | { | |
1408 | asection * sgot; | |
1409 | ||
1410 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1411 | ||
1412 | if (h != NULL) | |
1413 | { | |
1414 | bfd_vma off; | |
1415 | ||
1416 | off = h->got.offset; | |
1417 | BFD_ASSERT (off != (bfd_vma) -1); | |
1418 | ||
1419 | if (! elf_hash_table (info)->dynamic_sections_created | |
1420 | || (info->shared | |
1421 | && (info->symbolic || h->dynindx == -1) | |
1422 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) | |
1423 | /* This is actually a static link, or it is a | |
1424 | -Bsymbolic link and the symbol is defined | |
1425 | locally, or the symbol was forced to be local | |
1426 | because of a version file. We must initialize | |
1427 | this entry in the global offset table. | |
1428 | ||
1429 | When doing a dynamic link, we create a .rela.got | |
1430 | relocation entry to initialize the value. This | |
1431 | is done in the finish_dynamic_symbol routine. */ | |
1432 | bfd_put_32 (output_bfd, value, | |
1433 | sgot->contents + off); | |
1434 | ||
1435 | value = sgot->output_offset + off; | |
1436 | } | |
1437 | else | |
1438 | { | |
1439 | bfd_vma off; | |
1440 | ||
1441 | off = elf_local_got_offsets (input_bfd)[symndx]; | |
1442 | ||
1443 | bfd_put_32 (output_bfd, value, sgot->contents + off); | |
1444 | ||
1445 | if (info->shared) | |
1446 | { | |
1447 | asection * srelgot; | |
1448 | Elf_Internal_Rela outrel; | |
1449 | ||
1450 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1451 | BFD_ASSERT (srelgot != NULL); | |
1452 | ||
1453 | outrel.r_offset = (sgot->output_section->vma | |
1454 | + sgot->output_offset | |
1455 | + off); | |
1456 | outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE); | |
1457 | outrel.r_addend = value; | |
1458 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
560e09e9 NC |
1459 | (bfd_byte *) (((Elf32_External_Rela *) |
1460 | srelgot->contents) | |
1461 | + srelgot->reloc_count)); | |
03a12831 AO |
1462 | ++ srelgot->reloc_count; |
1463 | } | |
1464 | ||
1465 | value = sgot->output_offset + off; | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | value += addend; | |
1470 | ||
1471 | if (r_type == R_MN10300_GOT32) | |
1472 | { | |
1473 | bfd_put_32 (input_bfd, value, hit_data); | |
1474 | return bfd_reloc_ok; | |
1475 | } | |
1476 | else if (r_type == R_MN10300_GOT24) | |
1477 | { | |
1478 | if ((long) value > 0x7fffff || (long) value < -0x800000) | |
1479 | return bfd_reloc_overflow; | |
1480 | ||
1481 | bfd_put_8 (input_bfd, value & 0xff, hit_data); | |
1482 | bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1); | |
1483 | bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2); | |
1484 | return bfd_reloc_ok; | |
1485 | } | |
1486 | else if (r_type == R_MN10300_GOT16) | |
1487 | { | |
1488 | if ((long) value > 0xffff || (long) value < -0x10000) | |
1489 | return bfd_reloc_overflow; | |
1490 | ||
1491 | bfd_put_16 (input_bfd, value, hit_data); | |
1492 | return bfd_reloc_ok; | |
1493 | } | |
1494 | /* Fall through. */ | |
1495 | ||
252b5132 RH |
1496 | default: |
1497 | return bfd_reloc_notsupported; | |
1498 | } | |
1499 | } | |
252b5132 RH |
1500 | \f |
1501 | /* Relocate an MN10300 ELF section. */ | |
b34976b6 | 1502 | static bfd_boolean |
252b5132 RH |
1503 | mn10300_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
1504 | contents, relocs, local_syms, local_sections) | |
1505 | bfd *output_bfd; | |
1506 | struct bfd_link_info *info; | |
1507 | bfd *input_bfd; | |
1508 | asection *input_section; | |
1509 | bfd_byte *contents; | |
1510 | Elf_Internal_Rela *relocs; | |
1511 | Elf_Internal_Sym *local_syms; | |
1512 | asection **local_sections; | |
1513 | { | |
1514 | Elf_Internal_Shdr *symtab_hdr; | |
b2a8e766 | 1515 | struct elf_link_hash_entry **sym_hashes; |
252b5132 RH |
1516 | Elf_Internal_Rela *rel, *relend; |
1517 | ||
1049f94e | 1518 | if (info->relocatable) |
b34976b6 | 1519 | return TRUE; |
b491616a | 1520 | |
252b5132 | 1521 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
b2a8e766 | 1522 | sym_hashes = elf_sym_hashes (input_bfd); |
252b5132 RH |
1523 | |
1524 | rel = relocs; | |
1525 | relend = relocs + input_section->reloc_count; | |
1526 | for (; rel < relend; rel++) | |
1527 | { | |
1528 | int r_type; | |
1529 | reloc_howto_type *howto; | |
1530 | unsigned long r_symndx; | |
1531 | Elf_Internal_Sym *sym; | |
1532 | asection *sec; | |
1533 | struct elf32_mn10300_link_hash_entry *h; | |
1534 | bfd_vma relocation; | |
1535 | bfd_reloc_status_type r; | |
1536 | ||
1537 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1538 | r_type = ELF32_R_TYPE (rel->r_info); | |
1539 | howto = elf_mn10300_howto_table + r_type; | |
1540 | ||
1541 | /* Just skip the vtable gc relocs. */ | |
1542 | if (r_type == R_MN10300_GNU_VTINHERIT | |
1543 | || r_type == R_MN10300_GNU_VTENTRY) | |
1544 | continue; | |
1545 | ||
252b5132 RH |
1546 | h = NULL; |
1547 | sym = NULL; | |
1548 | sec = NULL; | |
1549 | if (r_symndx < symtab_hdr->sh_info) | |
1550 | { | |
1551 | sym = local_syms + r_symndx; | |
1552 | sec = local_sections[r_symndx]; | |
8517fae7 | 1553 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
1554 | } |
1555 | else | |
1556 | { | |
560e09e9 NC |
1557 | bfd_boolean unresolved_reloc; |
1558 | bfd_boolean warned; | |
1559 | struct elf_link_hash_entry *hh; | |
1560 | ||
b2a8e766 AM |
1561 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
1562 | r_symndx, symtab_hdr, sym_hashes, | |
1563 | hh, sec, relocation, | |
1564 | unresolved_reloc, warned); | |
560e09e9 NC |
1565 | |
1566 | h = (struct elf32_mn10300_link_hash_entry *) hh; | |
1567 | ||
1568 | if ((h->root.root.type == bfd_link_hash_defined | |
252b5132 | 1569 | || h->root.root.type == bfd_link_hash_defweak) |
560e09e9 | 1570 | && ( r_type == R_MN10300_GOTPC32 |
03a12831 AO |
1571 | || r_type == R_MN10300_GOTPC16 |
1572 | || (( r_type == R_MN10300_PLT32 | |
1573 | || r_type == R_MN10300_PLT16) | |
1574 | && ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL | |
1575 | && ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN | |
1576 | && h->root.plt.offset != (bfd_vma) -1) | |
1577 | || (( r_type == R_MN10300_GOT32 | |
1578 | || r_type == R_MN10300_GOT24 | |
1579 | || r_type == R_MN10300_GOT16) | |
1580 | && elf_hash_table (info)->dynamic_sections_created | |
1581 | && (! info->shared | |
1582 | || (! info->symbolic && h->root.dynindx != -1) | |
1583 | || (h->root.elf_link_hash_flags | |
1584 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1585 | || (info->shared | |
1586 | && ((! info->symbolic && h->root.dynindx != -1) | |
1587 | || (h->root.elf_link_hash_flags | |
1588 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1589 | && ( r_type == R_MN10300_32 | |
1590 | || r_type == R_MN10300_PCREL32) | |
1591 | && ((input_section->flags & SEC_ALLOC) != 0 | |
1592 | /* DWARF will emit R_MN10300_32 relocations | |
1593 | in its sections against symbols defined | |
1594 | externally in shared libraries. We can't | |
1595 | do anything with them here. */ | |
1596 | || ((input_section->flags & SEC_DEBUGGING) != 0 | |
1597 | && (h->root.elf_link_hash_flags | |
560e09e9 NC |
1598 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0))))) |
1599 | /* In these cases, we don't need the relocation | |
1600 | value. We check specially because in some | |
1601 | obscure cases sec->output_section will be NULL. */ | |
03a12831 | 1602 | relocation = 0; |
560e09e9 NC |
1603 | |
1604 | else if (unresolved_reloc) | |
1605 | (*_bfd_error_handler) | |
1606 | (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"), | |
1607 | bfd_get_filename (input_bfd), h->root.root.root.string, | |
1608 | bfd_get_section_name (input_bfd, input_section)); | |
252b5132 RH |
1609 | } |
1610 | ||
1611 | r = mn10300_elf_final_link_relocate (howto, input_bfd, output_bfd, | |
1612 | input_section, | |
1613 | contents, rel->r_offset, | |
1614 | relocation, rel->r_addend, | |
03a12831 AO |
1615 | (struct elf_link_hash_entry *)h, |
1616 | r_symndx, | |
252b5132 RH |
1617 | info, sec, h == NULL); |
1618 | ||
1619 | if (r != bfd_reloc_ok) | |
1620 | { | |
1621 | const char *name; | |
010ac81f | 1622 | const char *msg = (const char *) 0; |
252b5132 RH |
1623 | |
1624 | if (h != NULL) | |
1625 | name = h->root.root.root.string; | |
1626 | else | |
1627 | { | |
1628 | name = (bfd_elf_string_from_elf_section | |
1629 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1630 | if (name == NULL || *name == '\0') | |
1631 | name = bfd_section_name (input_bfd, sec); | |
1632 | } | |
1633 | ||
1634 | switch (r) | |
1635 | { | |
1636 | case bfd_reloc_overflow: | |
1637 | if (! ((*info->callbacks->reloc_overflow) | |
1638 | (info, name, howto->name, (bfd_vma) 0, | |
1639 | input_bfd, input_section, rel->r_offset))) | |
b34976b6 | 1640 | return FALSE; |
252b5132 RH |
1641 | break; |
1642 | ||
1643 | case bfd_reloc_undefined: | |
1644 | if (! ((*info->callbacks->undefined_symbol) | |
1645 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
1646 | rel->r_offset, TRUE))) |
1647 | return FALSE; | |
252b5132 RH |
1648 | break; |
1649 | ||
1650 | case bfd_reloc_outofrange: | |
1651 | msg = _("internal error: out of range error"); | |
1652 | goto common_error; | |
1653 | ||
1654 | case bfd_reloc_notsupported: | |
1655 | msg = _("internal error: unsupported relocation error"); | |
1656 | goto common_error; | |
1657 | ||
1658 | case bfd_reloc_dangerous: | |
1659 | msg = _("internal error: dangerous error"); | |
1660 | goto common_error; | |
1661 | ||
1662 | default: | |
1663 | msg = _("internal error: unknown error"); | |
1664 | /* fall through */ | |
1665 | ||
1666 | common_error: | |
1667 | if (!((*info->callbacks->warning) | |
1668 | (info, msg, name, input_bfd, input_section, | |
1669 | rel->r_offset))) | |
b34976b6 | 1670 | return FALSE; |
252b5132 RH |
1671 | break; |
1672 | } | |
1673 | } | |
1674 | } | |
1675 | ||
b34976b6 | 1676 | return TRUE; |
252b5132 RH |
1677 | } |
1678 | ||
1679 | /* Finish initializing one hash table entry. */ | |
b34976b6 | 1680 | static bfd_boolean |
252b5132 RH |
1681 | elf32_mn10300_finish_hash_table_entry (gen_entry, in_args) |
1682 | struct bfd_hash_entry *gen_entry; | |
1055df0f | 1683 | PTR in_args; |
252b5132 RH |
1684 | { |
1685 | struct elf32_mn10300_link_hash_entry *entry; | |
1055df0f | 1686 | struct bfd_link_info *link_info = (struct bfd_link_info *)in_args; |
252b5132 RH |
1687 | unsigned int byte_count = 0; |
1688 | ||
010ac81f | 1689 | entry = (struct elf32_mn10300_link_hash_entry *) gen_entry; |
252b5132 | 1690 | |
e92d460e AM |
1691 | if (entry->root.root.type == bfd_link_hash_warning) |
1692 | entry = (struct elf32_mn10300_link_hash_entry *) entry->root.root.u.i.link; | |
1693 | ||
252b5132 RH |
1694 | /* If we already know we want to convert "call" to "calls" for calls |
1695 | to this symbol, then return now. */ | |
1696 | if (entry->flags == MN10300_CONVERT_CALL_TO_CALLS) | |
b34976b6 | 1697 | return TRUE; |
252b5132 RH |
1698 | |
1699 | /* If there are no named calls to this symbol, or there's nothing we | |
1055df0f AO |
1700 | can move from the function itself into the "call" instruction, |
1701 | then note that all "call" instructions should be converted into | |
1702 | "calls" instructions and return. If a symbol is available for | |
1703 | dynamic symbol resolution (overridable or overriding), avoid | |
1704 | custom calling conventions. */ | |
252b5132 | 1705 | if (entry->direct_calls == 0 |
1055df0f AO |
1706 | || (entry->stack_size == 0 && entry->movm_args == 0) |
1707 | || (elf_hash_table (link_info)->dynamic_sections_created | |
1708 | && ELF_ST_VISIBILITY (entry->root.other) != STV_INTERNAL | |
1709 | && ELF_ST_VISIBILITY (entry->root.other) != STV_HIDDEN)) | |
252b5132 RH |
1710 | { |
1711 | /* Make a note that we should convert "call" instructions to "calls" | |
1712 | instructions for calls to this symbol. */ | |
1713 | entry->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
b34976b6 | 1714 | return TRUE; |
252b5132 RH |
1715 | } |
1716 | ||
1717 | /* We may be able to move some instructions from the function itself into | |
1718 | the "call" instruction. Count how many bytes we might be able to | |
1719 | eliminate in the function itself. */ | |
1720 | ||
1721 | /* A movm instruction is two bytes. */ | |
1722 | if (entry->movm_args) | |
1723 | byte_count += 2; | |
1724 | ||
1725 | /* Count the insn to allocate stack space too. */ | |
1a101a42 AM |
1726 | if (entry->stack_size > 0) |
1727 | { | |
1728 | if (entry->stack_size <= 128) | |
1729 | byte_count += 3; | |
1730 | else | |
1731 | byte_count += 4; | |
1732 | } | |
252b5132 RH |
1733 | |
1734 | /* If using "call" will result in larger code, then turn all | |
4cc11e76 | 1735 | the associated "call" instructions into "calls" instructions. */ |
252b5132 RH |
1736 | if (byte_count < entry->direct_calls) |
1737 | entry->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
1738 | ||
1739 | /* This routine never fails. */ | |
b34976b6 | 1740 | return TRUE; |
252b5132 RH |
1741 | } |
1742 | ||
1743 | /* This function handles relaxing for the mn10300. | |
1744 | ||
4cc11e76 | 1745 | There are quite a few relaxing opportunities available on the mn10300: |
252b5132 RH |
1746 | |
1747 | * calls:32 -> calls:16 2 bytes | |
1748 | * call:32 -> call:16 2 bytes | |
1749 | ||
1750 | * call:32 -> calls:32 1 byte | |
1751 | * call:16 -> calls:16 1 byte | |
1752 | * These are done anytime using "calls" would result | |
1753 | in smaller code, or when necessary to preserve the | |
1754 | meaning of the program. | |
1755 | ||
1756 | * call:32 varies | |
1757 | * call:16 | |
1758 | * In some circumstances we can move instructions | |
1759 | from a function prologue into a "call" instruction. | |
1760 | This is only done if the resulting code is no larger | |
1761 | than the original code. | |
1762 | ||
252b5132 RH |
1763 | * jmp:32 -> jmp:16 2 bytes |
1764 | * jmp:16 -> bra:8 1 byte | |
1765 | ||
1766 | * If the previous instruction is a conditional branch | |
1767 | around the jump/bra, we may be able to reverse its condition | |
1768 | and change its target to the jump's target. The jump/bra | |
1769 | can then be deleted. 2 bytes | |
1770 | ||
1771 | * mov abs32 -> mov abs16 1 or 2 bytes | |
1772 | ||
1773 | * Most instructions which accept imm32 can relax to imm16 1 or 2 bytes | |
1774 | - Most instructions which accept imm16 can relax to imm8 1 or 2 bytes | |
1775 | ||
1776 | * Most instructions which accept d32 can relax to d16 1 or 2 bytes | |
1777 | - Most instructions which accept d16 can relax to d8 1 or 2 bytes | |
1778 | ||
1779 | We don't handle imm16->imm8 or d16->d8 as they're very rare | |
1780 | and somewhat more difficult to support. */ | |
1781 | ||
b34976b6 | 1782 | static bfd_boolean |
252b5132 RH |
1783 | mn10300_elf_relax_section (abfd, sec, link_info, again) |
1784 | bfd *abfd; | |
1785 | asection *sec; | |
1786 | struct bfd_link_info *link_info; | |
b34976b6 | 1787 | bfd_boolean *again; |
252b5132 RH |
1788 | { |
1789 | Elf_Internal_Shdr *symtab_hdr; | |
1790 | Elf_Internal_Rela *internal_relocs = NULL; | |
252b5132 RH |
1791 | Elf_Internal_Rela *irel, *irelend; |
1792 | bfd_byte *contents = NULL; | |
6cdc0ccc | 1793 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 | 1794 | struct elf32_mn10300_link_hash_table *hash_table; |
6cdc0ccc | 1795 | asection *section = sec; |
252b5132 RH |
1796 | |
1797 | /* Assume nothing changes. */ | |
b34976b6 | 1798 | *again = FALSE; |
252b5132 RH |
1799 | |
1800 | /* We need a pointer to the mn10300 specific hash table. */ | |
1801 | hash_table = elf32_mn10300_hash_table (link_info); | |
1802 | ||
1803 | /* Initialize fields in each hash table entry the first time through. */ | |
1804 | if ((hash_table->flags & MN10300_HASH_ENTRIES_INITIALIZED) == 0) | |
1805 | { | |
1806 | bfd *input_bfd; | |
1807 | ||
1808 | /* Iterate over all the input bfds. */ | |
1809 | for (input_bfd = link_info->input_bfds; | |
1810 | input_bfd != NULL; | |
1811 | input_bfd = input_bfd->link_next) | |
1812 | { | |
252b5132 RH |
1813 | /* We're going to need all the symbols for each bfd. */ |
1814 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
6cdc0ccc | 1815 | if (symtab_hdr->sh_info != 0) |
9ad5cbcf | 1816 | { |
6cdc0ccc AM |
1817 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
1818 | if (isymbuf == NULL) | |
1819 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
1820 | symtab_hdr->sh_info, 0, | |
1821 | NULL, NULL, NULL); | |
1822 | if (isymbuf == NULL) | |
010ac81f KH |
1823 | goto error_return; |
1824 | } | |
252b5132 RH |
1825 | |
1826 | /* Iterate over each section in this bfd. */ | |
1827 | for (section = input_bfd->sections; | |
1828 | section != NULL; | |
1829 | section = section->next) | |
1830 | { | |
1831 | struct elf32_mn10300_link_hash_entry *hash; | |
1832 | Elf_Internal_Sym *sym; | |
86033394 | 1833 | asection *sym_sec = NULL; |
252b5132 RH |
1834 | const char *sym_name; |
1835 | char *new_name; | |
252b5132 | 1836 | |
e948afaf AO |
1837 | /* If there's nothing to do in this section, skip it. */ |
1838 | if (! (((section->flags & SEC_RELOC) != 0 | |
1839 | && section->reloc_count != 0) | |
1840 | || (section->flags & SEC_CODE) != 0)) | |
1841 | continue; | |
1842 | ||
252b5132 RH |
1843 | /* Get cached copy of section contents if it exists. */ |
1844 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
1845 | contents = elf_section_data (section)->this_hdr.contents; | |
eea6121a | 1846 | else if (section->size != 0) |
252b5132 RH |
1847 | { |
1848 | /* Go get them off disk. */ | |
eea6121a AM |
1849 | if (!bfd_malloc_and_get_section (input_bfd, section, |
1850 | &contents)) | |
252b5132 RH |
1851 | goto error_return; |
1852 | } | |
1853 | else | |
6cdc0ccc | 1854 | contents = NULL; |
252b5132 RH |
1855 | |
1856 | /* If there aren't any relocs, then there's nothing to do. */ | |
1857 | if ((section->flags & SEC_RELOC) != 0 | |
1858 | && section->reloc_count != 0) | |
1859 | { | |
1860 | ||
1861 | /* Get a copy of the native relocations. */ | |
45d6a902 | 1862 | internal_relocs = (_bfd_elf_link_read_relocs |
252b5132 RH |
1863 | (input_bfd, section, (PTR) NULL, |
1864 | (Elf_Internal_Rela *) NULL, | |
1865 | link_info->keep_memory)); | |
1866 | if (internal_relocs == NULL) | |
1867 | goto error_return; | |
252b5132 RH |
1868 | |
1869 | /* Now examine each relocation. */ | |
1870 | irel = internal_relocs; | |
1871 | irelend = irel + section->reloc_count; | |
1872 | for (; irel < irelend; irel++) | |
1873 | { | |
1874 | long r_type; | |
1875 | unsigned long r_index; | |
1876 | unsigned char code; | |
1877 | ||
1878 | r_type = ELF32_R_TYPE (irel->r_info); | |
1879 | r_index = ELF32_R_SYM (irel->r_info); | |
1880 | ||
010ac81f | 1881 | if (r_type < 0 || r_type >= (int) R_MN10300_MAX) |
252b5132 RH |
1882 | goto error_return; |
1883 | ||
1884 | /* We need the name and hash table entry of the target | |
1885 | symbol! */ | |
1886 | hash = NULL; | |
1887 | sym = NULL; | |
1888 | sym_sec = NULL; | |
1889 | ||
1890 | if (r_index < symtab_hdr->sh_info) | |
1891 | { | |
1892 | /* A local symbol. */ | |
6cdc0ccc | 1893 | Elf_Internal_Sym *isym; |
dc810e39 AM |
1894 | struct elf_link_hash_table *elftab; |
1895 | bfd_size_type amt; | |
252b5132 | 1896 | |
6cdc0ccc AM |
1897 | isym = isymbuf + r_index; |
1898 | if (isym->st_shndx == SHN_UNDEF) | |
252b5132 | 1899 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 1900 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 1901 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 1902 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 1903 | sym_sec = bfd_com_section_ptr; |
9ad5cbcf AM |
1904 | else |
1905 | sym_sec | |
1906 | = bfd_section_from_elf_index (input_bfd, | |
6cdc0ccc | 1907 | isym->st_shndx); |
a7c10850 | 1908 | |
9ad5cbcf AM |
1909 | sym_name |
1910 | = bfd_elf_string_from_elf_section (input_bfd, | |
1911 | (symtab_hdr | |
1912 | ->sh_link), | |
6cdc0ccc | 1913 | isym->st_name); |
252b5132 RH |
1914 | |
1915 | /* If it isn't a function, then we don't care | |
1916 | about it. */ | |
6cdc0ccc | 1917 | if (ELF_ST_TYPE (isym->st_info) != STT_FUNC) |
252b5132 RH |
1918 | continue; |
1919 | ||
1920 | /* Tack on an ID so we can uniquely identify this | |
1921 | local symbol in the global hash table. */ | |
dc810e39 AM |
1922 | amt = strlen (sym_name) + 10; |
1923 | new_name = bfd_malloc (amt); | |
252b5132 RH |
1924 | if (new_name == 0) |
1925 | goto error_return; | |
1926 | ||
010ac81f KH |
1927 | sprintf (new_name, "%s_%08x", |
1928 | sym_name, (int) sym_sec); | |
252b5132 RH |
1929 | sym_name = new_name; |
1930 | ||
dc810e39 AM |
1931 | elftab = &hash_table->static_hash_table->root; |
1932 | hash = ((struct elf32_mn10300_link_hash_entry *) | |
1933 | elf_link_hash_lookup (elftab, sym_name, | |
b34976b6 | 1934 | TRUE, TRUE, FALSE)); |
252b5132 RH |
1935 | free (new_name); |
1936 | } | |
1937 | else | |
1938 | { | |
1939 | r_index -= symtab_hdr->sh_info; | |
1940 | hash = (struct elf32_mn10300_link_hash_entry *) | |
1941 | elf_sym_hashes (input_bfd)[r_index]; | |
1942 | } | |
1943 | ||
1944 | /* If this is not a "call" instruction, then we | |
1945 | should convert "call" instructions to "calls" | |
1946 | instructions. */ | |
1947 | code = bfd_get_8 (input_bfd, | |
1948 | contents + irel->r_offset - 1); | |
1949 | if (code != 0xdd && code != 0xcd) | |
1950 | hash->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
1951 | ||
6cdc0ccc AM |
1952 | /* If this is a jump/call, then bump the |
1953 | direct_calls counter. Else force "call" to | |
1954 | "calls" conversions. */ | |
252b5132 | 1955 | if (r_type == R_MN10300_PCREL32 |
03a12831 AO |
1956 | || r_type == R_MN10300_PLT32 |
1957 | || r_type == R_MN10300_PLT16 | |
252b5132 RH |
1958 | || r_type == R_MN10300_PCREL16) |
1959 | hash->direct_calls++; | |
1960 | else | |
1961 | hash->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
1962 | } | |
1963 | } | |
1964 | ||
1965 | /* Now look at the actual contents to get the stack size, | |
1966 | and a list of what registers were saved in the prologue | |
1967 | (ie movm_args). */ | |
1968 | if ((section->flags & SEC_CODE) != 0) | |
1969 | { | |
6cdc0ccc | 1970 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 1971 | unsigned int sec_shndx; |
6cdc0ccc AM |
1972 | struct elf_link_hash_entry **hashes; |
1973 | struct elf_link_hash_entry **end_hashes; | |
1974 | unsigned int symcount; | |
252b5132 | 1975 | |
9ad5cbcf AM |
1976 | sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd, |
1977 | section); | |
252b5132 | 1978 | |
1055df0f AO |
1979 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1980 | - symtab_hdr->sh_info); | |
1981 | hashes = elf_sym_hashes (input_bfd); | |
1982 | end_hashes = hashes + symcount; | |
1983 | ||
252b5132 RH |
1984 | /* Look at each function defined in this section and |
1985 | update info for that function. */ | |
6cdc0ccc AM |
1986 | isymend = isymbuf + symtab_hdr->sh_info; |
1987 | for (isym = isymbuf; isym < isymend; isym++) | |
252b5132 | 1988 | { |
6cdc0ccc AM |
1989 | if (isym->st_shndx == sec_shndx |
1990 | && ELF_ST_TYPE (isym->st_info) == STT_FUNC) | |
252b5132 | 1991 | { |
dc810e39 AM |
1992 | struct elf_link_hash_table *elftab; |
1993 | bfd_size_type amt; | |
1055df0f AO |
1994 | struct elf_link_hash_entry **lhashes = hashes; |
1995 | ||
1996 | /* Skip a local symbol if it aliases a | |
1997 | global one. */ | |
1998 | for (; lhashes < end_hashes; lhashes++) | |
1999 | { | |
2000 | hash = (struct elf32_mn10300_link_hash_entry *) *lhashes; | |
2001 | if ((hash->root.root.type == bfd_link_hash_defined | |
2002 | || hash->root.root.type == bfd_link_hash_defweak) | |
2003 | && hash->root.root.u.def.section == section | |
2004 | && hash->root.type == STT_FUNC | |
2005 | && hash->root.root.u.def.value == isym->st_value) | |
2006 | break; | |
2007 | } | |
2008 | if (lhashes != end_hashes) | |
2009 | continue; | |
dc810e39 | 2010 | |
6cdc0ccc | 2011 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 2012 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 2013 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 2014 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 2015 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 2016 | sym_sec = bfd_com_section_ptr; |
9ad5cbcf AM |
2017 | else |
2018 | sym_sec | |
2019 | = bfd_section_from_elf_index (input_bfd, | |
6cdc0ccc | 2020 | isym->st_shndx); |
252b5132 | 2021 | |
dc810e39 AM |
2022 | sym_name = (bfd_elf_string_from_elf_section |
2023 | (input_bfd, symtab_hdr->sh_link, | |
6cdc0ccc | 2024 | isym->st_name)); |
252b5132 RH |
2025 | |
2026 | /* Tack on an ID so we can uniquely identify this | |
2027 | local symbol in the global hash table. */ | |
dc810e39 AM |
2028 | amt = strlen (sym_name) + 10; |
2029 | new_name = bfd_malloc (amt); | |
252b5132 RH |
2030 | if (new_name == 0) |
2031 | goto error_return; | |
2032 | ||
010ac81f KH |
2033 | sprintf (new_name, "%s_%08x", |
2034 | sym_name, (int) sym_sec); | |
252b5132 RH |
2035 | sym_name = new_name; |
2036 | ||
dc810e39 AM |
2037 | elftab = &hash_table->static_hash_table->root; |
2038 | hash = ((struct elf32_mn10300_link_hash_entry *) | |
2039 | elf_link_hash_lookup (elftab, sym_name, | |
b34976b6 | 2040 | TRUE, TRUE, FALSE)); |
252b5132 RH |
2041 | free (new_name); |
2042 | compute_function_info (input_bfd, hash, | |
6cdc0ccc | 2043 | isym->st_value, contents); |
252b5132 RH |
2044 | } |
2045 | } | |
2046 | ||
6cdc0ccc | 2047 | for (; hashes < end_hashes; hashes++) |
252b5132 | 2048 | { |
6cdc0ccc | 2049 | hash = (struct elf32_mn10300_link_hash_entry *) *hashes; |
9ad5cbcf AM |
2050 | if ((hash->root.root.type == bfd_link_hash_defined |
2051 | || hash->root.root.type == bfd_link_hash_defweak) | |
2052 | && hash->root.root.u.def.section == section | |
9bb351fd | 2053 | && hash->root.type == STT_FUNC) |
252b5132 RH |
2054 | compute_function_info (input_bfd, hash, |
2055 | (hash)->root.root.u.def.value, | |
2056 | contents); | |
2057 | } | |
2058 | } | |
2059 | ||
2060 | /* Cache or free any memory we allocated for the relocs. */ | |
6cdc0ccc AM |
2061 | if (internal_relocs != NULL |
2062 | && elf_section_data (section)->relocs != internal_relocs) | |
2063 | free (internal_relocs); | |
2064 | internal_relocs = NULL; | |
252b5132 RH |
2065 | |
2066 | /* Cache or free any memory we allocated for the contents. */ | |
6cdc0ccc AM |
2067 | if (contents != NULL |
2068 | && elf_section_data (section)->this_hdr.contents != contents) | |
252b5132 RH |
2069 | { |
2070 | if (! link_info->keep_memory) | |
6cdc0ccc | 2071 | free (contents); |
252b5132 RH |
2072 | else |
2073 | { | |
2074 | /* Cache the section contents for elf_link_input_bfd. */ | |
2075 | elf_section_data (section)->this_hdr.contents = contents; | |
2076 | } | |
252b5132 | 2077 | } |
6cdc0ccc | 2078 | contents = NULL; |
9ad5cbcf AM |
2079 | } |
2080 | ||
252b5132 | 2081 | /* Cache or free any memory we allocated for the symbols. */ |
6cdc0ccc AM |
2082 | if (isymbuf != NULL |
2083 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
2084 | { |
2085 | if (! link_info->keep_memory) | |
6cdc0ccc | 2086 | free (isymbuf); |
252b5132 RH |
2087 | else |
2088 | { | |
2089 | /* Cache the symbols for elf_link_input_bfd. */ | |
6cdc0ccc | 2090 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 | 2091 | } |
252b5132 | 2092 | } |
6cdc0ccc | 2093 | isymbuf = NULL; |
252b5132 RH |
2094 | } |
2095 | ||
2096 | /* Now iterate on each symbol in the hash table and perform | |
2097 | the final initialization steps on each. */ | |
2098 | elf32_mn10300_link_hash_traverse (hash_table, | |
2099 | elf32_mn10300_finish_hash_table_entry, | |
1055df0f | 2100 | link_info); |
252b5132 RH |
2101 | elf32_mn10300_link_hash_traverse (hash_table->static_hash_table, |
2102 | elf32_mn10300_finish_hash_table_entry, | |
1055df0f | 2103 | link_info); |
252b5132 RH |
2104 | |
2105 | /* All entries in the hash table are fully initialized. */ | |
2106 | hash_table->flags |= MN10300_HASH_ENTRIES_INITIALIZED; | |
2107 | ||
2108 | /* Now that everything has been initialized, go through each | |
2109 | code section and delete any prologue insns which will be | |
2110 | redundant because their operations will be performed by | |
2111 | a "call" instruction. */ | |
2112 | for (input_bfd = link_info->input_bfds; | |
2113 | input_bfd != NULL; | |
2114 | input_bfd = input_bfd->link_next) | |
2115 | { | |
9ad5cbcf | 2116 | /* We're going to need all the local symbols for each bfd. */ |
252b5132 | 2117 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
6cdc0ccc | 2118 | if (symtab_hdr->sh_info != 0) |
9ad5cbcf | 2119 | { |
6cdc0ccc AM |
2120 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
2121 | if (isymbuf == NULL) | |
2122 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
2123 | symtab_hdr->sh_info, 0, | |
2124 | NULL, NULL, NULL); | |
2125 | if (isymbuf == NULL) | |
9ad5cbcf | 2126 | goto error_return; |
010ac81f | 2127 | } |
252b5132 RH |
2128 | |
2129 | /* Walk over each section in this bfd. */ | |
2130 | for (section = input_bfd->sections; | |
2131 | section != NULL; | |
2132 | section = section->next) | |
2133 | { | |
9ad5cbcf | 2134 | unsigned int sec_shndx; |
6cdc0ccc AM |
2135 | Elf_Internal_Sym *isym, *isymend; |
2136 | struct elf_link_hash_entry **hashes; | |
2137 | struct elf_link_hash_entry **end_hashes; | |
2138 | unsigned int symcount; | |
252b5132 RH |
2139 | |
2140 | /* Skip non-code sections and empty sections. */ | |
eea6121a | 2141 | if ((section->flags & SEC_CODE) == 0 || section->size == 0) |
252b5132 RH |
2142 | continue; |
2143 | ||
2144 | if (section->reloc_count != 0) | |
2145 | { | |
010ac81f | 2146 | /* Get a copy of the native relocations. */ |
45d6a902 | 2147 | internal_relocs = (_bfd_elf_link_read_relocs |
010ac81f KH |
2148 | (input_bfd, section, (PTR) NULL, |
2149 | (Elf_Internal_Rela *) NULL, | |
2150 | link_info->keep_memory)); | |
2151 | if (internal_relocs == NULL) | |
2152 | goto error_return; | |
252b5132 RH |
2153 | } |
2154 | ||
2155 | /* Get cached copy of section contents if it exists. */ | |
2156 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
2157 | contents = elf_section_data (section)->this_hdr.contents; | |
2158 | else | |
2159 | { | |
2160 | /* Go get them off disk. */ | |
eea6121a AM |
2161 | if (!bfd_malloc_and_get_section (input_bfd, section, |
2162 | &contents)) | |
252b5132 RH |
2163 | goto error_return; |
2164 | } | |
2165 | ||
9ad5cbcf AM |
2166 | sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd, |
2167 | section); | |
252b5132 RH |
2168 | |
2169 | /* Now look for any function in this section which needs | |
2170 | insns deleted from its prologue. */ | |
6cdc0ccc AM |
2171 | isymend = isymbuf + symtab_hdr->sh_info; |
2172 | for (isym = isymbuf; isym < isymend; isym++) | |
252b5132 | 2173 | { |
252b5132 | 2174 | struct elf32_mn10300_link_hash_entry *sym_hash; |
86033394 | 2175 | asection *sym_sec = NULL; |
252b5132 | 2176 | const char *sym_name; |
252b5132 | 2177 | char *new_name; |
dc810e39 AM |
2178 | struct elf_link_hash_table *elftab; |
2179 | bfd_size_type amt; | |
252b5132 | 2180 | |
6cdc0ccc | 2181 | if (isym->st_shndx != sec_shndx) |
252b5132 RH |
2182 | continue; |
2183 | ||
6cdc0ccc | 2184 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 2185 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 2186 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 2187 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 2188 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 2189 | sym_sec = bfd_com_section_ptr; |
86033394 | 2190 | else |
9ad5cbcf | 2191 | sym_sec |
6cdc0ccc | 2192 | = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
a7c10850 | 2193 | |
9ad5cbcf AM |
2194 | sym_name |
2195 | = bfd_elf_string_from_elf_section (input_bfd, | |
2196 | symtab_hdr->sh_link, | |
6cdc0ccc | 2197 | isym->st_name); |
252b5132 RH |
2198 | |
2199 | /* Tack on an ID so we can uniquely identify this | |
2200 | local symbol in the global hash table. */ | |
dc810e39 AM |
2201 | amt = strlen (sym_name) + 10; |
2202 | new_name = bfd_malloc (amt); | |
252b5132 RH |
2203 | if (new_name == 0) |
2204 | goto error_return; | |
010ac81f | 2205 | sprintf (new_name, "%s_%08x", sym_name, (int) sym_sec); |
252b5132 RH |
2206 | sym_name = new_name; |
2207 | ||
dc810e39 AM |
2208 | elftab = &hash_table->static_hash_table->root; |
2209 | sym_hash = ((struct elf32_mn10300_link_hash_entry *) | |
2210 | elf_link_hash_lookup (elftab, sym_name, | |
b34976b6 | 2211 | FALSE, FALSE, FALSE)); |
252b5132 RH |
2212 | |
2213 | free (new_name); | |
2214 | if (sym_hash == NULL) | |
2215 | continue; | |
2216 | ||
9ad5cbcf AM |
2217 | if (! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS) |
2218 | && ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES)) | |
252b5132 RH |
2219 | { |
2220 | int bytes = 0; | |
2221 | ||
2222 | /* Note that we've changed things. */ | |
2223 | elf_section_data (section)->relocs = internal_relocs; | |
252b5132 | 2224 | elf_section_data (section)->this_hdr.contents = contents; |
6cdc0ccc | 2225 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
2226 | |
2227 | /* Count how many bytes we're going to delete. */ | |
2228 | if (sym_hash->movm_args) | |
2229 | bytes += 2; | |
2230 | ||
1a101a42 AM |
2231 | if (sym_hash->stack_size > 0) |
2232 | { | |
2233 | if (sym_hash->stack_size <= 128) | |
2234 | bytes += 3; | |
2235 | else | |
2236 | bytes += 4; | |
2237 | } | |
252b5132 RH |
2238 | |
2239 | /* Note that we've deleted prologue bytes for this | |
2240 | function. */ | |
2241 | sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES; | |
2242 | ||
2243 | /* Actually delete the bytes. */ | |
2244 | if (!mn10300_elf_relax_delete_bytes (input_bfd, | |
2245 | section, | |
6cdc0ccc | 2246 | isym->st_value, |
252b5132 RH |
2247 | bytes)) |
2248 | goto error_return; | |
2249 | ||
2250 | /* Something changed. Not strictly necessary, but | |
2251 | may lead to more relaxing opportunities. */ | |
b34976b6 | 2252 | *again = TRUE; |
252b5132 RH |
2253 | } |
2254 | } | |
2255 | ||
2256 | /* Look for any global functions in this section which | |
2257 | need insns deleted from their prologues. */ | |
6cdc0ccc | 2258 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
9ad5cbcf | 2259 | - symtab_hdr->sh_info); |
709e685d | 2260 | hashes = elf_sym_hashes (input_bfd); |
6cdc0ccc AM |
2261 | end_hashes = hashes + symcount; |
2262 | for (; hashes < end_hashes; hashes++) | |
252b5132 | 2263 | { |
252b5132 RH |
2264 | struct elf32_mn10300_link_hash_entry *sym_hash; |
2265 | ||
6cdc0ccc | 2266 | sym_hash = (struct elf32_mn10300_link_hash_entry *) *hashes; |
9ad5cbcf AM |
2267 | if ((sym_hash->root.root.type == bfd_link_hash_defined |
2268 | || sym_hash->root.root.type == bfd_link_hash_defweak) | |
2269 | && sym_hash->root.root.u.def.section == section | |
2270 | && ! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS) | |
2271 | && ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES)) | |
252b5132 RH |
2272 | { |
2273 | int bytes = 0; | |
9ad5cbcf | 2274 | bfd_vma symval; |
252b5132 RH |
2275 | |
2276 | /* Note that we've changed things. */ | |
2277 | elf_section_data (section)->relocs = internal_relocs; | |
252b5132 | 2278 | elf_section_data (section)->this_hdr.contents = contents; |
6cdc0ccc | 2279 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
2280 | |
2281 | /* Count how many bytes we're going to delete. */ | |
2282 | if (sym_hash->movm_args) | |
2283 | bytes += 2; | |
2284 | ||
1a101a42 AM |
2285 | if (sym_hash->stack_size > 0) |
2286 | { | |
2287 | if (sym_hash->stack_size <= 128) | |
2288 | bytes += 3; | |
2289 | else | |
2290 | bytes += 4; | |
2291 | } | |
252b5132 RH |
2292 | |
2293 | /* Note that we've deleted prologue bytes for this | |
2294 | function. */ | |
2295 | sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES; | |
2296 | ||
2297 | /* Actually delete the bytes. */ | |
9ad5cbcf | 2298 | symval = sym_hash->root.root.u.def.value; |
252b5132 RH |
2299 | if (!mn10300_elf_relax_delete_bytes (input_bfd, |
2300 | section, | |
9ad5cbcf | 2301 | symval, |
252b5132 RH |
2302 | bytes)) |
2303 | goto error_return; | |
2304 | ||
2305 | /* Something changed. Not strictly necessary, but | |
2306 | may lead to more relaxing opportunities. */ | |
b34976b6 | 2307 | *again = TRUE; |
252b5132 RH |
2308 | } |
2309 | } | |
2310 | ||
2311 | /* Cache or free any memory we allocated for the relocs. */ | |
6cdc0ccc AM |
2312 | if (internal_relocs != NULL |
2313 | && elf_section_data (section)->relocs != internal_relocs) | |
2314 | free (internal_relocs); | |
2315 | internal_relocs = NULL; | |
252b5132 RH |
2316 | |
2317 | /* Cache or free any memory we allocated for the contents. */ | |
6cdc0ccc AM |
2318 | if (contents != NULL |
2319 | && elf_section_data (section)->this_hdr.contents != contents) | |
252b5132 RH |
2320 | { |
2321 | if (! link_info->keep_memory) | |
6cdc0ccc | 2322 | free (contents); |
252b5132 RH |
2323 | else |
2324 | { | |
2325 | /* Cache the section contents for elf_link_input_bfd. */ | |
2326 | elf_section_data (section)->this_hdr.contents = contents; | |
2327 | } | |
252b5132 | 2328 | } |
6cdc0ccc | 2329 | contents = NULL; |
9ad5cbcf AM |
2330 | } |
2331 | ||
252b5132 | 2332 | /* Cache or free any memory we allocated for the symbols. */ |
6cdc0ccc AM |
2333 | if (isymbuf != NULL |
2334 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
2335 | { |
2336 | if (! link_info->keep_memory) | |
6cdc0ccc AM |
2337 | free (isymbuf); |
2338 | else | |
252b5132 | 2339 | { |
6cdc0ccc AM |
2340 | /* Cache the symbols for elf_link_input_bfd. */ |
2341 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
252b5132 | 2342 | } |
252b5132 | 2343 | } |
6cdc0ccc | 2344 | isymbuf = NULL; |
252b5132 RH |
2345 | } |
2346 | } | |
2347 | ||
252b5132 RH |
2348 | /* (Re)initialize for the basic instruction shortening/relaxing pass. */ |
2349 | contents = NULL; | |
252b5132 | 2350 | internal_relocs = NULL; |
6cdc0ccc AM |
2351 | isymbuf = NULL; |
2352 | /* For error_return. */ | |
2353 | section = sec; | |
252b5132 | 2354 | |
1049f94e | 2355 | /* We don't have to do anything for a relocatable link, if |
252b5132 RH |
2356 | this section does not have relocs, or if this is not a |
2357 | code section. */ | |
1049f94e | 2358 | if (link_info->relocatable |
252b5132 RH |
2359 | || (sec->flags & SEC_RELOC) == 0 |
2360 | || sec->reloc_count == 0 | |
2361 | || (sec->flags & SEC_CODE) == 0) | |
b34976b6 | 2362 | return TRUE; |
252b5132 | 2363 | |
252b5132 RH |
2364 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2365 | ||
2366 | /* Get a copy of the native relocations. */ | |
45d6a902 | 2367 | internal_relocs = (_bfd_elf_link_read_relocs |
252b5132 RH |
2368 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
2369 | link_info->keep_memory)); | |
2370 | if (internal_relocs == NULL) | |
2371 | goto error_return; | |
252b5132 RH |
2372 | |
2373 | /* Walk through them looking for relaxing opportunities. */ | |
2374 | irelend = internal_relocs + sec->reloc_count; | |
2375 | for (irel = internal_relocs; irel < irelend; irel++) | |
2376 | { | |
2377 | bfd_vma symval; | |
2378 | struct elf32_mn10300_link_hash_entry *h = NULL; | |
2379 | ||
2380 | /* If this isn't something that can be relaxed, then ignore | |
2381 | this reloc. */ | |
2382 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_NONE | |
2383 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_8 | |
2384 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_MAX) | |
2385 | continue; | |
2386 | ||
2387 | /* Get the section contents if we haven't done so already. */ | |
2388 | if (contents == NULL) | |
2389 | { | |
2390 | /* Get cached copy if it exists. */ | |
2391 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
2392 | contents = elf_section_data (sec)->this_hdr.contents; | |
2393 | else | |
2394 | { | |
2395 | /* Go get them off disk. */ | |
eea6121a | 2396 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
2397 | goto error_return; |
2398 | } | |
2399 | } | |
2400 | ||
b34976b6 | 2401 | /* Read this BFD's symbols if we haven't done so already. */ |
6cdc0ccc | 2402 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
252b5132 | 2403 | { |
6cdc0ccc AM |
2404 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
2405 | if (isymbuf == NULL) | |
2406 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
2407 | symtab_hdr->sh_info, 0, | |
2408 | NULL, NULL, NULL); | |
2409 | if (isymbuf == NULL) | |
2410 | goto error_return; | |
252b5132 RH |
2411 | } |
2412 | ||
2413 | /* Get the value of the symbol referred to by the reloc. */ | |
2414 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
2415 | { | |
6cdc0ccc | 2416 | Elf_Internal_Sym *isym; |
86033394 | 2417 | asection *sym_sec = NULL; |
252b5132 RH |
2418 | const char *sym_name; |
2419 | char *new_name; | |
dd90f1b2 | 2420 | bfd_vma saved_addend; |
252b5132 RH |
2421 | |
2422 | /* A local symbol. */ | |
6cdc0ccc AM |
2423 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
2424 | if (isym->st_shndx == SHN_UNDEF) | |
252b5132 | 2425 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 2426 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 2427 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 2428 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 2429 | sym_sec = bfd_com_section_ptr; |
86033394 | 2430 | else |
6cdc0ccc | 2431 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
a7c10850 | 2432 | |
252b5132 RH |
2433 | sym_name = bfd_elf_string_from_elf_section (abfd, |
2434 | symtab_hdr->sh_link, | |
6cdc0ccc | 2435 | isym->st_name); |
252b5132 | 2436 | |
dd90f1b2 DD |
2437 | if ((sym_sec->flags & SEC_MERGE) |
2438 | && ELF_ST_TYPE (isym->st_info) == STT_SECTION | |
2439 | && sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE) | |
2440 | { | |
2441 | saved_addend = irel->r_addend; | |
2442 | symval = _bfd_elf_rela_local_sym (abfd, isym, &sym_sec, irel); | |
2443 | symval += irel->r_addend; | |
2444 | irel->r_addend = saved_addend; | |
2445 | } | |
2446 | else | |
2447 | { | |
2448 | symval = (isym->st_value | |
2449 | + sym_sec->output_section->vma | |
2450 | + sym_sec->output_offset); | |
2451 | } | |
252b5132 RH |
2452 | /* Tack on an ID so we can uniquely identify this |
2453 | local symbol in the global hash table. */ | |
dc810e39 | 2454 | new_name = bfd_malloc ((bfd_size_type) strlen (sym_name) + 10); |
252b5132 RH |
2455 | if (new_name == 0) |
2456 | goto error_return; | |
010ac81f | 2457 | sprintf (new_name, "%s_%08x", sym_name, (int) sym_sec); |
252b5132 RH |
2458 | sym_name = new_name; |
2459 | ||
2460 | h = (struct elf32_mn10300_link_hash_entry *) | |
2461 | elf_link_hash_lookup (&hash_table->static_hash_table->root, | |
b34976b6 | 2462 | sym_name, FALSE, FALSE, FALSE); |
252b5132 RH |
2463 | free (new_name); |
2464 | } | |
2465 | else | |
2466 | { | |
2467 | unsigned long indx; | |
2468 | ||
2469 | /* An external symbol. */ | |
2470 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2471 | h = (struct elf32_mn10300_link_hash_entry *) | |
2472 | (elf_sym_hashes (abfd)[indx]); | |
2473 | BFD_ASSERT (h != NULL); | |
2474 | if (h->root.root.type != bfd_link_hash_defined | |
2475 | && h->root.root.type != bfd_link_hash_defweak) | |
2476 | { | |
2477 | /* This appears to be a reference to an undefined | |
2478 | symbol. Just ignore it--it will be caught by the | |
2479 | regular reloc processing. */ | |
2480 | continue; | |
2481 | } | |
2482 | ||
2483 | symval = (h->root.root.u.def.value | |
2484 | + h->root.root.u.def.section->output_section->vma | |
2485 | + h->root.root.u.def.section->output_offset); | |
2486 | } | |
2487 | ||
2488 | /* For simplicity of coding, we are going to modify the section | |
2489 | contents, the section relocs, and the BFD symbol table. We | |
2490 | must tell the rest of the code not to free up this | |
2491 | information. It would be possible to instead create a table | |
2492 | of changes which have to be made, as is done in coff-mips.c; | |
2493 | that would be more work, but would require less memory when | |
2494 | the linker is run. */ | |
2495 | ||
2496 | /* Try to turn a 32bit pc-relative branch/call into a 16bit pc-relative | |
2497 | branch/call, also deal with "call" -> "calls" conversions and | |
2498 | insertion of prologue data into "call" instructions. */ | |
03a12831 AO |
2499 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL32 |
2500 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32) | |
252b5132 RH |
2501 | { |
2502 | bfd_vma value = symval; | |
2503 | ||
03a12831 AO |
2504 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32 |
2505 | && h != NULL | |
2506 | && ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL | |
2507 | && ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN | |
2508 | && h->root.plt.offset != (bfd_vma) -1) | |
2509 | { | |
2510 | asection * splt; | |
2511 | ||
2512 | splt = bfd_get_section_by_name (elf_hash_table (link_info) | |
2513 | ->dynobj, ".plt"); | |
2514 | ||
2515 | value = ((splt->output_section->vma | |
2516 | + splt->output_offset | |
2517 | + h->root.plt.offset) | |
2518 | - (sec->output_section->vma | |
2519 | + sec->output_offset | |
2520 | + irel->r_offset)); | |
2521 | } | |
2522 | ||
252b5132 RH |
2523 | /* If we've got a "call" instruction that needs to be turned |
2524 | into a "calls" instruction, do so now. It saves a byte. */ | |
2525 | if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS)) | |
2526 | { | |
2527 | unsigned char code; | |
2528 | ||
2529 | /* Get the opcode. */ | |
2530 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
2531 | ||
2532 | /* Make sure we're working with a "call" instruction! */ | |
2533 | if (code == 0xdd) | |
2534 | { | |
2535 | /* Note that we've changed the relocs, section contents, | |
2536 | etc. */ | |
2537 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 2538 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 2539 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
2540 | |
2541 | /* Fix the opcode. */ | |
2542 | bfd_put_8 (abfd, 0xfc, contents + irel->r_offset - 1); | |
2543 | bfd_put_8 (abfd, 0xff, contents + irel->r_offset); | |
2544 | ||
2545 | /* Fix irel->r_offset and irel->r_addend. */ | |
2546 | irel->r_offset += 1; | |
2547 | irel->r_addend += 1; | |
2548 | ||
2549 | /* Delete one byte of data. */ | |
2550 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
2551 | irel->r_offset + 3, 1)) | |
2552 | goto error_return; | |
2553 | ||
2554 | /* That will change things, so, we should relax again. | |
2555 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 2556 | *again = TRUE; |
252b5132 RH |
2557 | } |
2558 | } | |
2559 | else if (h) | |
2560 | { | |
2561 | /* We've got a "call" instruction which needs some data | |
2562 | from target function filled in. */ | |
2563 | unsigned char code; | |
2564 | ||
2565 | /* Get the opcode. */ | |
2566 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
2567 | ||
2568 | /* Insert data from the target function into the "call" | |
2569 | instruction if needed. */ | |
2570 | if (code == 0xdd) | |
2571 | { | |
2572 | bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 4); | |
2573 | bfd_put_8 (abfd, h->stack_size + h->movm_stack_size, | |
2574 | contents + irel->r_offset + 5); | |
2575 | } | |
2576 | } | |
2577 | ||
2578 | /* Deal with pc-relative gunk. */ | |
2579 | value -= (sec->output_section->vma + sec->output_offset); | |
2580 | value -= irel->r_offset; | |
2581 | value += irel->r_addend; | |
2582 | ||
2583 | /* See if the value will fit in 16 bits, note the high value is | |
2584 | 0x7fff + 2 as the target will be two bytes closer if we are | |
2585 | able to relax. */ | |
010ac81f | 2586 | if ((long) value < 0x8001 && (long) value > -0x8000) |
252b5132 RH |
2587 | { |
2588 | unsigned char code; | |
2589 | ||
2590 | /* Get the opcode. */ | |
2591 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
2592 | ||
2593 | if (code != 0xdc && code != 0xdd && code != 0xff) | |
2594 | continue; | |
2595 | ||
2596 | /* Note that we've changed the relocs, section contents, etc. */ | |
2597 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 2598 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 2599 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
2600 | |
2601 | /* Fix the opcode. */ | |
2602 | if (code == 0xdc) | |
2603 | bfd_put_8 (abfd, 0xcc, contents + irel->r_offset - 1); | |
2604 | else if (code == 0xdd) | |
2605 | bfd_put_8 (abfd, 0xcd, contents + irel->r_offset - 1); | |
2606 | else if (code == 0xff) | |
2607 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
2608 | ||
2609 | /* Fix the relocation's type. */ | |
2610 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
2611 | (ELF32_R_TYPE (irel->r_info) |
2612 | == (int) R_MN10300_PLT32) | |
2613 | ? R_MN10300_PLT16 : | |
252b5132 RH |
2614 | R_MN10300_PCREL16); |
2615 | ||
2616 | /* Delete two bytes of data. */ | |
2617 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
2618 | irel->r_offset + 1, 2)) | |
2619 | goto error_return; | |
2620 | ||
2621 | /* That will change things, so, we should relax again. | |
2622 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 2623 | *again = TRUE; |
252b5132 RH |
2624 | } |
2625 | } | |
2626 | ||
2627 | /* Try to turn a 16bit pc-relative branch into a 8bit pc-relative | |
2628 | branch. */ | |
2629 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL16) | |
2630 | { | |
2631 | bfd_vma value = symval; | |
2632 | ||
2633 | /* If we've got a "call" instruction that needs to be turned | |
2634 | into a "calls" instruction, do so now. It saves a byte. */ | |
2635 | if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS)) | |
2636 | { | |
2637 | unsigned char code; | |
2638 | ||
2639 | /* Get the opcode. */ | |
2640 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
2641 | ||
2642 | /* Make sure we're working with a "call" instruction! */ | |
2643 | if (code == 0xcd) | |
2644 | { | |
2645 | /* Note that we've changed the relocs, section contents, | |
2646 | etc. */ | |
2647 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 2648 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 2649 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
2650 | |
2651 | /* Fix the opcode. */ | |
2652 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 1); | |
2653 | bfd_put_8 (abfd, 0xff, contents + irel->r_offset); | |
2654 | ||
2655 | /* Fix irel->r_offset and irel->r_addend. */ | |
2656 | irel->r_offset += 1; | |
2657 | irel->r_addend += 1; | |
2658 | ||
2659 | /* Delete one byte of data. */ | |
2660 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
2661 | irel->r_offset + 1, 1)) | |
2662 | goto error_return; | |
2663 | ||
2664 | /* That will change things, so, we should relax again. | |
2665 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 2666 | *again = TRUE; |
252b5132 RH |
2667 | } |
2668 | } | |
2669 | else if (h) | |
2670 | { | |
2671 | unsigned char code; | |
2672 | ||
2673 | /* Get the opcode. */ | |
2674 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
2675 | ||
2676 | /* Insert data from the target function into the "call" | |
2677 | instruction if needed. */ | |
2678 | if (code == 0xcd) | |
2679 | { | |
2680 | bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 2); | |
2681 | bfd_put_8 (abfd, h->stack_size + h->movm_stack_size, | |
2682 | contents + irel->r_offset + 3); | |
2683 | } | |
2684 | } | |
2685 | ||
2686 | /* Deal with pc-relative gunk. */ | |
2687 | value -= (sec->output_section->vma + sec->output_offset); | |
2688 | value -= irel->r_offset; | |
2689 | value += irel->r_addend; | |
2690 | ||
2691 | /* See if the value will fit in 8 bits, note the high value is | |
2692 | 0x7f + 1 as the target will be one bytes closer if we are | |
2693 | able to relax. */ | |
010ac81f | 2694 | if ((long) value < 0x80 && (long) value > -0x80) |
252b5132 RH |
2695 | { |
2696 | unsigned char code; | |
2697 | ||
2698 | /* Get the opcode. */ | |
2699 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
2700 | ||
2701 | if (code != 0xcc) | |
2702 | continue; | |
2703 | ||
2704 | /* Note that we've changed the relocs, section contents, etc. */ | |
2705 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 2706 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 2707 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
2708 | |
2709 | /* Fix the opcode. */ | |
2710 | bfd_put_8 (abfd, 0xca, contents + irel->r_offset - 1); | |
2711 | ||
2712 | /* Fix the relocation's type. */ | |
2713 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2714 | R_MN10300_PCREL8); | |
2715 | ||
2716 | /* Delete one byte of data. */ | |
2717 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
2718 | irel->r_offset + 1, 1)) | |
2719 | goto error_return; | |
2720 | ||
2721 | /* That will change things, so, we should relax again. | |
2722 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 2723 | *again = TRUE; |
252b5132 RH |
2724 | } |
2725 | } | |
2726 | ||
2727 | /* Try to eliminate an unconditional 8 bit pc-relative branch | |
2728 | which immediately follows a conditional 8 bit pc-relative | |
2729 | branch around the unconditional branch. | |
2730 | ||
2731 | original: new: | |
2732 | bCC lab1 bCC' lab2 | |
2733 | bra lab2 | |
2734 | lab1: lab1: | |
2735 | ||
252b5132 RH |
2736 | This happens when the bCC can't reach lab2 at assembly time, |
2737 | but due to other relaxations it can reach at link time. */ | |
2738 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL8) | |
2739 | { | |
2740 | Elf_Internal_Rela *nrel; | |
2741 | bfd_vma value = symval; | |
2742 | unsigned char code; | |
2743 | ||
2744 | /* Deal with pc-relative gunk. */ | |
2745 | value -= (sec->output_section->vma + sec->output_offset); | |
2746 | value -= irel->r_offset; | |
2747 | value += irel->r_addend; | |
2748 | ||
2749 | /* Do nothing if this reloc is the last byte in the section. */ | |
eea6121a | 2750 | if (irel->r_offset == sec->size) |
252b5132 RH |
2751 | continue; |
2752 | ||
2753 | /* See if the next instruction is an unconditional pc-relative | |
2754 | branch, more often than not this test will fail, so we | |
2755 | test it first to speed things up. */ | |
2756 | code = bfd_get_8 (abfd, contents + irel->r_offset + 1); | |
2757 | if (code != 0xca) | |
2758 | continue; | |
2759 | ||
2760 | /* Also make sure the next relocation applies to the next | |
2761 | instruction and that it's a pc-relative 8 bit branch. */ | |
2762 | nrel = irel + 1; | |
2763 | if (nrel == irelend | |
2764 | || irel->r_offset + 2 != nrel->r_offset | |
2765 | || ELF32_R_TYPE (nrel->r_info) != (int) R_MN10300_PCREL8) | |
2766 | continue; | |
2767 | ||
2768 | /* Make sure our destination immediately follows the | |
2769 | unconditional branch. */ | |
2770 | if (symval != (sec->output_section->vma + sec->output_offset | |
2771 | + irel->r_offset + 3)) | |
2772 | continue; | |
2773 | ||
2774 | /* Now make sure we are a conditional branch. This may not | |
2775 | be necessary, but why take the chance. | |
2776 | ||
2777 | Note these checks assume that R_MN10300_PCREL8 relocs | |
2778 | only occur on bCC and bCCx insns. If they occured | |
2779 | elsewhere, we'd need to know the start of this insn | |
2780 | for this check to be accurate. */ | |
2781 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
2782 | if (code != 0xc0 && code != 0xc1 && code != 0xc2 | |
2783 | && code != 0xc3 && code != 0xc4 && code != 0xc5 | |
2784 | && code != 0xc6 && code != 0xc7 && code != 0xc8 | |
2785 | && code != 0xc9 && code != 0xe8 && code != 0xe9 | |
2786 | && code != 0xea && code != 0xeb) | |
2787 | continue; | |
2788 | ||
2789 | /* We also have to be sure there is no symbol/label | |
2790 | at the unconditional branch. */ | |
6cdc0ccc AM |
2791 | if (mn10300_elf_symbol_address_p (abfd, sec, isymbuf, |
2792 | irel->r_offset + 1)) | |
252b5132 RH |
2793 | continue; |
2794 | ||
2795 | /* Note that we've changed the relocs, section contents, etc. */ | |
2796 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 2797 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 2798 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
2799 | |
2800 | /* Reverse the condition of the first branch. */ | |
2801 | switch (code) | |
2802 | { | |
010ac81f KH |
2803 | case 0xc8: |
2804 | code = 0xc9; | |
2805 | break; | |
2806 | case 0xc9: | |
2807 | code = 0xc8; | |
2808 | break; | |
2809 | case 0xc0: | |
2810 | code = 0xc2; | |
2811 | break; | |
2812 | case 0xc2: | |
2813 | code = 0xc0; | |
2814 | break; | |
2815 | case 0xc3: | |
2816 | code = 0xc1; | |
2817 | break; | |
2818 | case 0xc1: | |
2819 | code = 0xc3; | |
2820 | break; | |
2821 | case 0xc4: | |
2822 | code = 0xc6; | |
2823 | break; | |
2824 | case 0xc6: | |
2825 | code = 0xc4; | |
2826 | break; | |
2827 | case 0xc7: | |
2828 | code = 0xc5; | |
2829 | break; | |
2830 | case 0xc5: | |
2831 | code = 0xc7; | |
2832 | break; | |
2833 | case 0xe8: | |
2834 | code = 0xe9; | |
2835 | break; | |
2836 | case 0x9d: | |
2837 | code = 0xe8; | |
2838 | break; | |
2839 | case 0xea: | |
2840 | code = 0xeb; | |
2841 | break; | |
2842 | case 0xeb: | |
2843 | code = 0xea; | |
2844 | break; | |
252b5132 RH |
2845 | } |
2846 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
2847 | ||
2848 | /* Set the reloc type and symbol for the first branch | |
2849 | from the second branch. */ | |
2850 | irel->r_info = nrel->r_info; | |
2851 | ||
2852 | /* Make the reloc for the second branch a null reloc. */ | |
2853 | nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info), | |
2854 | R_MN10300_NONE); | |
2855 | ||
2856 | /* Delete two bytes of data. */ | |
2857 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
2858 | irel->r_offset + 1, 2)) | |
2859 | goto error_return; | |
2860 | ||
2861 | /* That will change things, so, we should relax again. | |
2862 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 2863 | *again = TRUE; |
252b5132 RH |
2864 | } |
2865 | ||
31f8dc8f JL |
2866 | /* Try to turn a 24 immediate, displacement or absolute address |
2867 | into a 8 immediate, displacement or absolute address. */ | |
2868 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_24) | |
2869 | { | |
2870 | bfd_vma value = symval; | |
2871 | value += irel->r_addend; | |
2872 | ||
2873 | /* See if the value will fit in 8 bits. */ | |
010ac81f | 2874 | if ((long) value < 0x7f && (long) value > -0x80) |
31f8dc8f JL |
2875 | { |
2876 | unsigned char code; | |
2877 | ||
2878 | /* AM33 insns which have 24 operands are 6 bytes long and | |
2879 | will have 0xfd as the first byte. */ | |
2880 | ||
2881 | /* Get the first opcode. */ | |
2882 | code = bfd_get_8 (abfd, contents + irel->r_offset - 3); | |
2883 | ||
2884 | if (code == 0xfd) | |
2885 | { | |
010ac81f KH |
2886 | /* Get the second opcode. */ |
2887 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
31f8dc8f JL |
2888 | |
2889 | /* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit | |
2890 | equivalent instructions exists. */ | |
2891 | if (code != 0x6b && code != 0x7b | |
2892 | && code != 0x8b && code != 0x9b | |
2893 | && ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08 | |
2894 | || (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b | |
2895 | || (code & 0x0f) == 0x0e)) | |
2896 | { | |
2897 | /* Not safe if the high bit is on as relaxing may | |
2898 | move the value out of high mem and thus not fit | |
2899 | in a signed 8bit value. This is currently over | |
2900 | conservative. */ | |
2901 | if ((value & 0x80) == 0) | |
2902 | { | |
2903 | /* Note that we've changed the relocation contents, | |
2904 | etc. */ | |
2905 | elf_section_data (sec)->relocs = internal_relocs; | |
31f8dc8f | 2906 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 2907 | symtab_hdr->contents = (unsigned char *) isymbuf; |
31f8dc8f JL |
2908 | |
2909 | /* Fix the opcode. */ | |
2910 | bfd_put_8 (abfd, 0xfb, contents + irel->r_offset - 3); | |
2911 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
2912 | ||
2913 | /* Fix the relocation's type. */ | |
010ac81f KH |
2914 | irel->r_info = |
2915 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2916 | R_MN10300_8); | |
31f8dc8f JL |
2917 | |
2918 | /* Delete two bytes of data. */ | |
2919 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
2920 | irel->r_offset + 1, 2)) | |
2921 | goto error_return; | |
2922 | ||
2923 | /* That will change things, so, we should relax | |
2924 | again. Note that this is not required, and it | |
010ac81f | 2925 | may be slow. */ |
b34976b6 | 2926 | *again = TRUE; |
31f8dc8f JL |
2927 | break; |
2928 | } | |
2929 | } | |
31f8dc8f JL |
2930 | } |
2931 | } | |
2932 | } | |
252b5132 RH |
2933 | |
2934 | /* Try to turn a 32bit immediate, displacement or absolute address | |
2935 | into a 16bit immediate, displacement or absolute address. */ | |
03a12831 AO |
2936 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_32 |
2937 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32 | |
2938 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32 | |
2939 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTPC32) | |
252b5132 RH |
2940 | { |
2941 | bfd_vma value = symval; | |
03a12831 AO |
2942 | |
2943 | if (ELF32_R_TYPE (irel->r_info) != (int) R_MN10300_32) | |
2944 | { | |
2945 | asection * sgot; | |
2946 | ||
2947 | sgot = bfd_get_section_by_name (elf_hash_table (link_info) | |
2948 | ->dynobj, ".got"); | |
2949 | ||
2950 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32) | |
2951 | { | |
2952 | value = sgot->output_offset; | |
2953 | ||
2954 | if (h) | |
2955 | value += h->root.got.offset; | |
2956 | else | |
2957 | value += (elf_local_got_offsets | |
2958 | (abfd)[ELF32_R_SYM (irel->r_info)]); | |
2959 | } | |
2960 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32) | |
2961 | value -= sgot->output_section->vma; | |
2962 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTPC32) | |
2963 | value = (sgot->output_section->vma | |
2964 | - (sec->output_section->vma | |
2965 | + sec->output_offset | |
2966 | + irel->r_offset)); | |
2967 | else | |
2968 | abort (); | |
2969 | } | |
2970 | ||
252b5132 RH |
2971 | value += irel->r_addend; |
2972 | ||
31f8dc8f JL |
2973 | /* See if the value will fit in 24 bits. |
2974 | We allow any 16bit match here. We prune those we can't | |
2975 | handle below. */ | |
010ac81f | 2976 | if ((long) value < 0x7fffff && (long) value > -0x800000) |
31f8dc8f JL |
2977 | { |
2978 | unsigned char code; | |
2979 | ||
2980 | /* AM33 insns which have 32bit operands are 7 bytes long and | |
2981 | will have 0xfe as the first byte. */ | |
2982 | ||
2983 | /* Get the first opcode. */ | |
2984 | code = bfd_get_8 (abfd, contents + irel->r_offset - 3); | |
2985 | ||
2986 | if (code == 0xfe) | |
2987 | { | |
2988 | /* Get the second opcode. */ | |
2989 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
2990 | ||
2991 | /* All the am33 32 -> 24 relaxing possibilities. */ | |
2992 | /* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit | |
2993 | equivalent instructions exists. */ | |
010ac81f | 2994 | if (code != 0x6b && code != 0x7b |
31f8dc8f | 2995 | && code != 0x8b && code != 0x9b |
03a12831 AO |
2996 | && (ELF32_R_TYPE (irel->r_info) |
2997 | != (int) R_MN10300_GOTPC32) | |
31f8dc8f JL |
2998 | && ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08 |
2999 | || (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b | |
3000 | || (code & 0x0f) == 0x0e)) | |
3001 | { | |
3002 | /* Not safe if the high bit is on as relaxing may | |
3003 | move the value out of high mem and thus not fit | |
3004 | in a signed 16bit value. This is currently over | |
3005 | conservative. */ | |
3006 | if ((value & 0x8000) == 0) | |
3007 | { | |
3008 | /* Note that we've changed the relocation contents, | |
3009 | etc. */ | |
3010 | elf_section_data (sec)->relocs = internal_relocs; | |
31f8dc8f | 3011 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3012 | symtab_hdr->contents = (unsigned char *) isymbuf; |
31f8dc8f JL |
3013 | |
3014 | /* Fix the opcode. */ | |
3015 | bfd_put_8 (abfd, 0xfd, contents + irel->r_offset - 3); | |
3016 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
3017 | ||
3018 | /* Fix the relocation's type. */ | |
010ac81f KH |
3019 | irel->r_info = |
3020 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3021 | (ELF32_R_TYPE (irel->r_info) |
3022 | == (int) R_MN10300_GOTOFF32) | |
3023 | ? R_MN10300_GOTOFF24 | |
3024 | : (ELF32_R_TYPE (irel->r_info) | |
3025 | == (int) R_MN10300_GOT32) | |
3026 | ? R_MN10300_GOT24 : | |
010ac81f | 3027 | R_MN10300_24); |
31f8dc8f JL |
3028 | |
3029 | /* Delete one byte of data. */ | |
3030 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3031 | irel->r_offset + 3, 1)) | |
3032 | goto error_return; | |
3033 | ||
3034 | /* That will change things, so, we should relax | |
3035 | again. Note that this is not required, and it | |
010ac81f | 3036 | may be slow. */ |
b34976b6 | 3037 | *again = TRUE; |
31f8dc8f JL |
3038 | break; |
3039 | } | |
3040 | } | |
31f8dc8f JL |
3041 | } |
3042 | } | |
252b5132 RH |
3043 | |
3044 | /* See if the value will fit in 16 bits. | |
3045 | We allow any 16bit match here. We prune those we can't | |
3046 | handle below. */ | |
010ac81f | 3047 | if ((long) value < 0x7fff && (long) value > -0x8000) |
252b5132 RH |
3048 | { |
3049 | unsigned char code; | |
3050 | ||
3051 | /* Most insns which have 32bit operands are 6 bytes long; | |
3052 | exceptions are pcrel insns and bit insns. | |
3053 | ||
3054 | We handle pcrel insns above. We don't bother trying | |
3055 | to handle the bit insns here. | |
3056 | ||
3057 | The first byte of the remaining insns will be 0xfc. */ | |
3058 | ||
3059 | /* Get the first opcode. */ | |
3060 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
3061 | ||
3062 | if (code != 0xfc) | |
3063 | continue; | |
3064 | ||
3065 | /* Get the second opcode. */ | |
3066 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3067 | ||
3068 | if ((code & 0xf0) < 0x80) | |
3069 | switch (code & 0xf0) | |
3070 | { | |
3071 | /* mov (d32,am),dn -> mov (d32,am),dn | |
3072 | mov dm,(d32,am) -> mov dn,(d32,am) | |
3073 | mov (d32,am),an -> mov (d32,am),an | |
3074 | mov dm,(d32,am) -> mov dn,(d32,am) | |
3075 | movbu (d32,am),dn -> movbu (d32,am),dn | |
3076 | movbu dm,(d32,am) -> movbu dn,(d32,am) | |
3077 | movhu (d32,am),dn -> movhu (d32,am),dn | |
3078 | movhu dm,(d32,am) -> movhu dn,(d32,am) */ | |
3079 | case 0x00: | |
3080 | case 0x10: | |
3081 | case 0x20: | |
3082 | case 0x30: | |
3083 | case 0x40: | |
3084 | case 0x50: | |
3085 | case 0x60: | |
3086 | case 0x70: | |
3087 | /* Not safe if the high bit is on as relaxing may | |
3088 | move the value out of high mem and thus not fit | |
3089 | in a signed 16bit value. */ | |
3090 | if (code == 0xcc | |
3091 | && (value & 0x8000)) | |
3092 | continue; | |
3093 | ||
3094 | /* Note that we've changed the relocation contents, etc. */ | |
3095 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3096 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3097 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3098 | |
3099 | /* Fix the opcode. */ | |
3100 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
3101 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
3102 | ||
3103 | /* Fix the relocation's type. */ | |
3104 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3105 | (ELF32_R_TYPE (irel->r_info) |
3106 | == (int) R_MN10300_GOTOFF32) | |
3107 | ? R_MN10300_GOTOFF16 | |
3108 | : (ELF32_R_TYPE (irel->r_info) | |
3109 | == (int) R_MN10300_GOT32) | |
3110 | ? R_MN10300_GOT16 | |
3111 | : (ELF32_R_TYPE (irel->r_info) | |
3112 | == (int) R_MN10300_GOTPC32) | |
3113 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
3114 | R_MN10300_16); |
3115 | ||
3116 | /* Delete two bytes of data. */ | |
3117 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3118 | irel->r_offset + 2, 2)) | |
3119 | goto error_return; | |
3120 | ||
3121 | /* That will change things, so, we should relax again. | |
3122 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3123 | *again = TRUE; |
252b5132 RH |
3124 | break; |
3125 | } | |
3126 | else if ((code & 0xf0) == 0x80 | |
3127 | || (code & 0xf0) == 0x90) | |
3128 | switch (code & 0xf3) | |
3129 | { | |
3130 | /* mov dn,(abs32) -> mov dn,(abs16) | |
3131 | movbu dn,(abs32) -> movbu dn,(abs16) | |
3132 | movhu dn,(abs32) -> movhu dn,(abs16) */ | |
3133 | case 0x81: | |
3134 | case 0x82: | |
3135 | case 0x83: | |
3136 | /* Note that we've changed the relocation contents, etc. */ | |
3137 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3138 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3139 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3140 | |
3141 | if ((code & 0xf3) == 0x81) | |
3142 | code = 0x01 + (code & 0x0c); | |
3143 | else if ((code & 0xf3) == 0x82) | |
3144 | code = 0x02 + (code & 0x0c); | |
3145 | else if ((code & 0xf3) == 0x83) | |
3146 | code = 0x03 + (code & 0x0c); | |
3147 | else | |
3148 | abort (); | |
3149 | ||
3150 | /* Fix the opcode. */ | |
3151 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
3152 | ||
3153 | /* Fix the relocation's type. */ | |
3154 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3155 | (ELF32_R_TYPE (irel->r_info) |
3156 | == (int) R_MN10300_GOTOFF32) | |
3157 | ? R_MN10300_GOTOFF16 | |
3158 | : (ELF32_R_TYPE (irel->r_info) | |
3159 | == (int) R_MN10300_GOT32) | |
3160 | ? R_MN10300_GOT16 | |
3161 | : (ELF32_R_TYPE (irel->r_info) | |
3162 | == (int) R_MN10300_GOTPC32) | |
3163 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
3164 | R_MN10300_16); |
3165 | ||
3166 | /* The opcode got shorter too, so we have to fix the | |
3167 | addend and offset too! */ | |
3168 | irel->r_offset -= 1; | |
3169 | ||
3170 | /* Delete three bytes of data. */ | |
3171 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3172 | irel->r_offset + 1, 3)) | |
3173 | goto error_return; | |
3174 | ||
3175 | /* That will change things, so, we should relax again. | |
3176 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3177 | *again = TRUE; |
252b5132 RH |
3178 | break; |
3179 | ||
3180 | /* mov am,(abs32) -> mov am,(abs16) | |
3181 | mov am,(d32,sp) -> mov am,(d16,sp) | |
3182 | mov dm,(d32,sp) -> mov dm,(d32,sp) | |
3183 | movbu dm,(d32,sp) -> movbu dm,(d32,sp) | |
3184 | movhu dm,(d32,sp) -> movhu dm,(d32,sp) */ | |
3185 | case 0x80: | |
3186 | case 0x90: | |
3187 | case 0x91: | |
3188 | case 0x92: | |
3189 | case 0x93: | |
2a0fa943 AO |
3190 | /* sp-based offsets are zero-extended. */ |
3191 | if (code >= 0x90 && code <= 0x93 | |
3192 | && (long)value < 0) | |
3193 | continue; | |
3194 | ||
252b5132 RH |
3195 | /* Note that we've changed the relocation contents, etc. */ |
3196 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3197 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3198 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3199 | |
3200 | /* Fix the opcode. */ | |
3201 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
3202 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
3203 | ||
3204 | /* Fix the relocation's type. */ | |
3205 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3206 | (ELF32_R_TYPE (irel->r_info) |
3207 | == (int) R_MN10300_GOTOFF32) | |
3208 | ? R_MN10300_GOTOFF16 | |
3209 | : (ELF32_R_TYPE (irel->r_info) | |
3210 | == (int) R_MN10300_GOT32) | |
3211 | ? R_MN10300_GOT16 | |
3212 | : (ELF32_R_TYPE (irel->r_info) | |
3213 | == (int) R_MN10300_GOTPC32) | |
3214 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
3215 | R_MN10300_16); |
3216 | ||
3217 | /* Delete two bytes of data. */ | |
3218 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3219 | irel->r_offset + 2, 2)) | |
3220 | goto error_return; | |
3221 | ||
3222 | /* That will change things, so, we should relax again. | |
3223 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3224 | *again = TRUE; |
252b5132 RH |
3225 | break; |
3226 | } | |
3227 | else if ((code & 0xf0) < 0xf0) | |
3228 | switch (code & 0xfc) | |
3229 | { | |
3230 | /* mov imm32,dn -> mov imm16,dn | |
3231 | mov imm32,an -> mov imm16,an | |
3232 | mov (abs32),dn -> mov (abs16),dn | |
3233 | movbu (abs32),dn -> movbu (abs16),dn | |
3234 | movhu (abs32),dn -> movhu (abs16),dn */ | |
3235 | case 0xcc: | |
3236 | case 0xdc: | |
3237 | case 0xa4: | |
3238 | case 0xa8: | |
3239 | case 0xac: | |
3240 | /* Not safe if the high bit is on as relaxing may | |
3241 | move the value out of high mem and thus not fit | |
3242 | in a signed 16bit value. */ | |
3243 | if (code == 0xcc | |
3244 | && (value & 0x8000)) | |
3245 | continue; | |
3246 | ||
2a0fa943 AO |
3247 | /* mov imm16, an zero-extends the immediate. */ |
3248 | if (code == 0xdc | |
3249 | && (long)value < 0) | |
3250 | continue; | |
3251 | ||
252b5132 RH |
3252 | /* Note that we've changed the relocation contents, etc. */ |
3253 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3254 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3255 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3256 | |
3257 | if ((code & 0xfc) == 0xcc) | |
3258 | code = 0x2c + (code & 0x03); | |
3259 | else if ((code & 0xfc) == 0xdc) | |
3260 | code = 0x24 + (code & 0x03); | |
3261 | else if ((code & 0xfc) == 0xa4) | |
3262 | code = 0x30 + (code & 0x03); | |
3263 | else if ((code & 0xfc) == 0xa8) | |
3264 | code = 0x34 + (code & 0x03); | |
3265 | else if ((code & 0xfc) == 0xac) | |
3266 | code = 0x38 + (code & 0x03); | |
3267 | else | |
3268 | abort (); | |
3269 | ||
3270 | /* Fix the opcode. */ | |
3271 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
3272 | ||
3273 | /* Fix the relocation's type. */ | |
3274 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3275 | (ELF32_R_TYPE (irel->r_info) |
3276 | == (int) R_MN10300_GOTOFF32) | |
3277 | ? R_MN10300_GOTOFF16 | |
3278 | : (ELF32_R_TYPE (irel->r_info) | |
3279 | == (int) R_MN10300_GOT32) | |
3280 | ? R_MN10300_GOT16 | |
3281 | : (ELF32_R_TYPE (irel->r_info) | |
3282 | == (int) R_MN10300_GOTPC32) | |
3283 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
3284 | R_MN10300_16); |
3285 | ||
3286 | /* The opcode got shorter too, so we have to fix the | |
3287 | addend and offset too! */ | |
3288 | irel->r_offset -= 1; | |
3289 | ||
3290 | /* Delete three bytes of data. */ | |
3291 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3292 | irel->r_offset + 1, 3)) | |
3293 | goto error_return; | |
3294 | ||
3295 | /* That will change things, so, we should relax again. | |
3296 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3297 | *again = TRUE; |
252b5132 RH |
3298 | break; |
3299 | ||
3300 | /* mov (abs32),an -> mov (abs16),an | |
2a0fa943 AO |
3301 | mov (d32,sp),an -> mov (d16,sp),an |
3302 | mov (d32,sp),dn -> mov (d16,sp),dn | |
3303 | movbu (d32,sp),dn -> movbu (d16,sp),dn | |
3304 | movhu (d32,sp),dn -> movhu (d16,sp),dn | |
252b5132 RH |
3305 | add imm32,dn -> add imm16,dn |
3306 | cmp imm32,dn -> cmp imm16,dn | |
3307 | add imm32,an -> add imm16,an | |
3308 | cmp imm32,an -> cmp imm16,an | |
2a0fa943 AO |
3309 | and imm32,dn -> and imm16,dn |
3310 | or imm32,dn -> or imm16,dn | |
3311 | xor imm32,dn -> xor imm16,dn | |
3312 | btst imm32,dn -> btst imm16,dn */ | |
252b5132 RH |
3313 | |
3314 | case 0xa0: | |
3315 | case 0xb0: | |
3316 | case 0xb1: | |
3317 | case 0xb2: | |
3318 | case 0xb3: | |
3319 | case 0xc0: | |
3320 | case 0xc8: | |
3321 | ||
3322 | case 0xd0: | |
3323 | case 0xd8: | |
3324 | case 0xe0: | |
3325 | case 0xe1: | |
3326 | case 0xe2: | |
3327 | case 0xe3: | |
2a0fa943 AO |
3328 | /* cmp imm16, an zero-extends the immediate. */ |
3329 | if (code == 0xdc | |
3330 | && (long)value < 0) | |
3331 | continue; | |
3332 | ||
3333 | /* So do sp-based offsets. */ | |
3334 | if (code >= 0xb0 && code <= 0xb3 | |
3335 | && (long)value < 0) | |
3336 | continue; | |
3337 | ||
252b5132 RH |
3338 | /* Note that we've changed the relocation contents, etc. */ |
3339 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3340 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3341 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3342 | |
3343 | /* Fix the opcode. */ | |
3344 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
3345 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
3346 | ||
3347 | /* Fix the relocation's type. */ | |
3348 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3349 | (ELF32_R_TYPE (irel->r_info) |
3350 | == (int) R_MN10300_GOTOFF32) | |
3351 | ? R_MN10300_GOTOFF16 | |
3352 | : (ELF32_R_TYPE (irel->r_info) | |
3353 | == (int) R_MN10300_GOT32) | |
3354 | ? R_MN10300_GOT16 | |
3355 | : (ELF32_R_TYPE (irel->r_info) | |
3356 | == (int) R_MN10300_GOTPC32) | |
3357 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
3358 | R_MN10300_16); |
3359 | ||
3360 | /* Delete two bytes of data. */ | |
3361 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3362 | irel->r_offset + 2, 2)) | |
3363 | goto error_return; | |
3364 | ||
3365 | /* That will change things, so, we should relax again. | |
3366 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3367 | *again = TRUE; |
252b5132 RH |
3368 | break; |
3369 | } | |
3370 | else if (code == 0xfe) | |
3371 | { | |
3372 | /* add imm32,sp -> add imm16,sp */ | |
3373 | ||
3374 | /* Note that we've changed the relocation contents, etc. */ | |
3375 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3376 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3377 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3378 | |
3379 | /* Fix the opcode. */ | |
3380 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
3381 | bfd_put_8 (abfd, 0xfe, contents + irel->r_offset - 1); | |
3382 | ||
3383 | /* Fix the relocation's type. */ | |
3384 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3385 | (ELF32_R_TYPE (irel->r_info) |
3386 | == (int) R_MN10300_GOT32) | |
3387 | ? R_MN10300_GOT16 | |
3388 | : (ELF32_R_TYPE (irel->r_info) | |
3389 | == (int) R_MN10300_GOTOFF32) | |
3390 | ? R_MN10300_GOTOFF16 | |
3391 | : (ELF32_R_TYPE (irel->r_info) | |
3392 | == (int) R_MN10300_GOTPC32) | |
3393 | ? R_MN10300_GOTPC16 : | |
010ac81f | 3394 | R_MN10300_16); |
252b5132 RH |
3395 | |
3396 | /* Delete two bytes of data. */ | |
3397 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3398 | irel->r_offset + 2, 2)) | |
3399 | goto error_return; | |
3400 | ||
3401 | /* That will change things, so, we should relax again. | |
3402 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3403 | *again = TRUE; |
252b5132 RH |
3404 | break; |
3405 | } | |
3406 | } | |
3407 | } | |
3408 | } | |
3409 | ||
6cdc0ccc AM |
3410 | if (isymbuf != NULL |
3411 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
3412 | { |
3413 | if (! link_info->keep_memory) | |
6cdc0ccc | 3414 | free (isymbuf); |
252b5132 RH |
3415 | else |
3416 | { | |
6cdc0ccc AM |
3417 | /* Cache the symbols for elf_link_input_bfd. */ |
3418 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
252b5132 | 3419 | } |
9ad5cbcf AM |
3420 | } |
3421 | ||
6cdc0ccc AM |
3422 | if (contents != NULL |
3423 | && elf_section_data (sec)->this_hdr.contents != contents) | |
252b5132 RH |
3424 | { |
3425 | if (! link_info->keep_memory) | |
6cdc0ccc AM |
3426 | free (contents); |
3427 | else | |
252b5132 | 3428 | { |
6cdc0ccc AM |
3429 | /* Cache the section contents for elf_link_input_bfd. */ |
3430 | elf_section_data (sec)->this_hdr.contents = contents; | |
252b5132 | 3431 | } |
252b5132 RH |
3432 | } |
3433 | ||
6cdc0ccc AM |
3434 | if (internal_relocs != NULL |
3435 | && elf_section_data (sec)->relocs != internal_relocs) | |
3436 | free (internal_relocs); | |
3437 | ||
b34976b6 | 3438 | return TRUE; |
252b5132 RH |
3439 | |
3440 | error_return: | |
6cdc0ccc AM |
3441 | if (isymbuf != NULL |
3442 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
3443 | free (isymbuf); | |
3444 | if (contents != NULL | |
3445 | && elf_section_data (section)->this_hdr.contents != contents) | |
3446 | free (contents); | |
3447 | if (internal_relocs != NULL | |
3448 | && elf_section_data (section)->relocs != internal_relocs) | |
3449 | free (internal_relocs); | |
9ad5cbcf | 3450 | |
b34976b6 | 3451 | return FALSE; |
252b5132 RH |
3452 | } |
3453 | ||
3454 | /* Compute the stack size and movm arguments for the function | |
3455 | referred to by HASH at address ADDR in section with | |
3456 | contents CONTENTS, store the information in the hash table. */ | |
3457 | static void | |
3458 | compute_function_info (abfd, hash, addr, contents) | |
3459 | bfd *abfd; | |
3460 | struct elf32_mn10300_link_hash_entry *hash; | |
3461 | bfd_vma addr; | |
3462 | unsigned char *contents; | |
3463 | { | |
3464 | unsigned char byte1, byte2; | |
3465 | /* We only care about a very small subset of the possible prologue | |
3466 | sequences here. Basically we look for: | |
3467 | ||
3468 | movm [d2,d3,a2,a3],sp (optional) | |
3469 | add <size>,sp (optional, and only for sizes which fit in an unsigned | |
3470 | 8 bit number) | |
3471 | ||
3472 | If we find anything else, we quit. */ | |
3473 | ||
3474 | /* Look for movm [regs],sp */ | |
3475 | byte1 = bfd_get_8 (abfd, contents + addr); | |
3476 | byte2 = bfd_get_8 (abfd, contents + addr + 1); | |
3477 | ||
3478 | if (byte1 == 0xcf) | |
3479 | { | |
3480 | hash->movm_args = byte2; | |
3481 | addr += 2; | |
3482 | byte1 = bfd_get_8 (abfd, contents + addr); | |
3483 | byte2 = bfd_get_8 (abfd, contents + addr + 1); | |
3484 | } | |
3485 | ||
3486 | /* Now figure out how much stack space will be allocated by the movm | |
4cc11e76 | 3487 | instruction. We need this kept separate from the function's normal |
252b5132 RH |
3488 | stack space. */ |
3489 | if (hash->movm_args) | |
3490 | { | |
3491 | /* Space for d2. */ | |
3492 | if (hash->movm_args & 0x80) | |
3493 | hash->movm_stack_size += 4; | |
3494 | ||
3495 | /* Space for d3. */ | |
3496 | if (hash->movm_args & 0x40) | |
3497 | hash->movm_stack_size += 4; | |
3498 | ||
3499 | /* Space for a2. */ | |
3500 | if (hash->movm_args & 0x20) | |
3501 | hash->movm_stack_size += 4; | |
3502 | ||
3503 | /* Space for a3. */ | |
3504 | if (hash->movm_args & 0x10) | |
3505 | hash->movm_stack_size += 4; | |
3506 | ||
3507 | /* "other" space. d0, d1, a0, a1, mdr, lir, lar, 4 byte pad. */ | |
3508 | if (hash->movm_args & 0x08) | |
3509 | hash->movm_stack_size += 8 * 4; | |
3510 | ||
b08fa4d3 AO |
3511 | if (bfd_get_mach (abfd) == bfd_mach_am33 |
3512 | || bfd_get_mach (abfd) == bfd_mach_am33_2) | |
31f8dc8f JL |
3513 | { |
3514 | /* "exother" space. e0, e1, mdrq, mcrh, mcrl, mcvf */ | |
3515 | if (hash->movm_args & 0x1) | |
3516 | hash->movm_stack_size += 6 * 4; | |
3517 | ||
3518 | /* exreg1 space. e4, e5, e6, e7 */ | |
3519 | if (hash->movm_args & 0x2) | |
3520 | hash->movm_stack_size += 4 * 4; | |
3521 | ||
3522 | /* exreg0 space. e2, e3 */ | |
3523 | if (hash->movm_args & 0x4) | |
3524 | hash->movm_stack_size += 2 * 4; | |
3525 | } | |
252b5132 RH |
3526 | } |
3527 | ||
3528 | /* Now look for the two stack adjustment variants. */ | |
3529 | if (byte1 == 0xf8 && byte2 == 0xfe) | |
3530 | { | |
3531 | int temp = bfd_get_8 (abfd, contents + addr + 2); | |
3532 | temp = ((temp & 0xff) ^ (~0x7f)) + 0x80; | |
3533 | ||
3534 | hash->stack_size = -temp; | |
3535 | } | |
3536 | else if (byte1 == 0xfa && byte2 == 0xfe) | |
3537 | { | |
3538 | int temp = bfd_get_16 (abfd, contents + addr + 2); | |
3539 | temp = ((temp & 0xffff) ^ (~0x7fff)) + 0x8000; | |
3540 | temp = -temp; | |
3541 | ||
3542 | if (temp < 255) | |
3543 | hash->stack_size = temp; | |
3544 | } | |
3545 | ||
3546 | /* If the total stack to be allocated by the call instruction is more | |
3547 | than 255 bytes, then we can't remove the stack adjustment by using | |
3548 | "call" (we might still be able to remove the "movm" instruction. */ | |
3549 | if (hash->stack_size + hash->movm_stack_size > 255) | |
3550 | hash->stack_size = 0; | |
3551 | ||
3552 | return; | |
3553 | } | |
3554 | ||
3555 | /* Delete some bytes from a section while relaxing. */ | |
3556 | ||
b34976b6 | 3557 | static bfd_boolean |
252b5132 RH |
3558 | mn10300_elf_relax_delete_bytes (abfd, sec, addr, count) |
3559 | bfd *abfd; | |
3560 | asection *sec; | |
3561 | bfd_vma addr; | |
3562 | int count; | |
3563 | { | |
3564 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 3565 | unsigned int sec_shndx; |
252b5132 RH |
3566 | bfd_byte *contents; |
3567 | Elf_Internal_Rela *irel, *irelend; | |
3568 | Elf_Internal_Rela *irelalign; | |
3569 | bfd_vma toaddr; | |
6cdc0ccc | 3570 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf AM |
3571 | struct elf_link_hash_entry **sym_hashes; |
3572 | struct elf_link_hash_entry **end_hashes; | |
3573 | unsigned int symcount; | |
252b5132 | 3574 | |
9ad5cbcf | 3575 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
252b5132 RH |
3576 | |
3577 | contents = elf_section_data (sec)->this_hdr.contents; | |
3578 | ||
3579 | /* The deletion must stop at the next ALIGN reloc for an aligment | |
3580 | power larger than the number of bytes we are deleting. */ | |
3581 | ||
3582 | irelalign = NULL; | |
eea6121a | 3583 | toaddr = sec->size; |
252b5132 RH |
3584 | |
3585 | irel = elf_section_data (sec)->relocs; | |
3586 | irelend = irel + sec->reloc_count; | |
3587 | ||
3588 | /* Actually delete the bytes. */ | |
dc810e39 AM |
3589 | memmove (contents + addr, contents + addr + count, |
3590 | (size_t) (toaddr - addr - count)); | |
eea6121a | 3591 | sec->size -= count; |
252b5132 RH |
3592 | |
3593 | /* Adjust all the relocs. */ | |
3594 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
3595 | { | |
3596 | /* Get the new reloc address. */ | |
3597 | if ((irel->r_offset > addr | |
3598 | && irel->r_offset < toaddr)) | |
3599 | irel->r_offset -= count; | |
3600 | } | |
3601 | ||
3602 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
3603 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
3604 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
3605 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
252b5132 | 3606 | { |
6cdc0ccc AM |
3607 | if (isym->st_shndx == sec_shndx |
3608 | && isym->st_value > addr | |
3609 | && isym->st_value < toaddr) | |
3610 | isym->st_value -= count; | |
252b5132 RH |
3611 | } |
3612 | ||
3613 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
3614 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
3615 | - symtab_hdr->sh_info); | |
3616 | sym_hashes = elf_sym_hashes (abfd); | |
3617 | end_hashes = sym_hashes + symcount; | |
3618 | for (; sym_hashes < end_hashes; sym_hashes++) | |
252b5132 | 3619 | { |
9ad5cbcf AM |
3620 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
3621 | if ((sym_hash->root.type == bfd_link_hash_defined | |
3622 | || sym_hash->root.type == bfd_link_hash_defweak) | |
3623 | && sym_hash->root.u.def.section == sec | |
3624 | && sym_hash->root.u.def.value > addr | |
3625 | && sym_hash->root.u.def.value < toaddr) | |
252b5132 | 3626 | { |
9ad5cbcf | 3627 | sym_hash->root.u.def.value -= count; |
252b5132 RH |
3628 | } |
3629 | } | |
3630 | ||
b34976b6 | 3631 | return TRUE; |
252b5132 RH |
3632 | } |
3633 | ||
b34976b6 AM |
3634 | /* Return TRUE if a symbol exists at the given address, else return |
3635 | FALSE. */ | |
3636 | static bfd_boolean | |
6cdc0ccc | 3637 | mn10300_elf_symbol_address_p (abfd, sec, isym, addr) |
252b5132 RH |
3638 | bfd *abfd; |
3639 | asection *sec; | |
6cdc0ccc | 3640 | Elf_Internal_Sym *isym; |
252b5132 RH |
3641 | bfd_vma addr; |
3642 | { | |
3643 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 3644 | unsigned int sec_shndx; |
6cdc0ccc | 3645 | Elf_Internal_Sym *isymend; |
9ad5cbcf AM |
3646 | struct elf_link_hash_entry **sym_hashes; |
3647 | struct elf_link_hash_entry **end_hashes; | |
3648 | unsigned int symcount; | |
252b5132 | 3649 | |
9ad5cbcf | 3650 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
252b5132 RH |
3651 | |
3652 | /* Examine all the symbols. */ | |
9ad5cbcf | 3653 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
6cdc0ccc | 3654 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) |
252b5132 | 3655 | { |
6cdc0ccc AM |
3656 | if (isym->st_shndx == sec_shndx |
3657 | && isym->st_value == addr) | |
b34976b6 | 3658 | return TRUE; |
252b5132 RH |
3659 | } |
3660 | ||
9ad5cbcf AM |
3661 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
3662 | - symtab_hdr->sh_info); | |
3663 | sym_hashes = elf_sym_hashes (abfd); | |
3664 | end_hashes = sym_hashes + symcount; | |
3665 | for (; sym_hashes < end_hashes; sym_hashes++) | |
252b5132 | 3666 | { |
9ad5cbcf AM |
3667 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
3668 | if ((sym_hash->root.type == bfd_link_hash_defined | |
3669 | || sym_hash->root.type == bfd_link_hash_defweak) | |
3670 | && sym_hash->root.u.def.section == sec | |
3671 | && sym_hash->root.u.def.value == addr) | |
b34976b6 | 3672 | return TRUE; |
252b5132 | 3673 | } |
9ad5cbcf | 3674 | |
b34976b6 | 3675 | return FALSE; |
252b5132 RH |
3676 | } |
3677 | ||
3678 | /* This is a version of bfd_generic_get_relocated_section_contents | |
3679 | which uses mn10300_elf_relocate_section. */ | |
3680 | ||
3681 | static bfd_byte * | |
3682 | mn10300_elf_get_relocated_section_contents (output_bfd, link_info, link_order, | |
1049f94e | 3683 | data, relocatable, symbols) |
252b5132 RH |
3684 | bfd *output_bfd; |
3685 | struct bfd_link_info *link_info; | |
3686 | struct bfd_link_order *link_order; | |
3687 | bfd_byte *data; | |
1049f94e | 3688 | bfd_boolean relocatable; |
252b5132 RH |
3689 | asymbol **symbols; |
3690 | { | |
3691 | Elf_Internal_Shdr *symtab_hdr; | |
3692 | asection *input_section = link_order->u.indirect.section; | |
3693 | bfd *input_bfd = input_section->owner; | |
3694 | asection **sections = NULL; | |
3695 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 3696 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 RH |
3697 | |
3698 | /* We only need to handle the case of relaxing, or of having a | |
3699 | particular set of section contents, specially. */ | |
1049f94e | 3700 | if (relocatable |
252b5132 RH |
3701 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
3702 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
3703 | link_order, data, | |
1049f94e | 3704 | relocatable, |
252b5132 RH |
3705 | symbols); |
3706 | ||
3707 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3708 | ||
3709 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
eea6121a | 3710 | (size_t) input_section->size); |
252b5132 RH |
3711 | |
3712 | if ((input_section->flags & SEC_RELOC) != 0 | |
3713 | && input_section->reloc_count > 0) | |
3714 | { | |
252b5132 | 3715 | asection **secpp; |
6cdc0ccc | 3716 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 3717 | bfd_size_type amt; |
252b5132 | 3718 | |
45d6a902 | 3719 | internal_relocs = (_bfd_elf_link_read_relocs |
252b5132 | 3720 | (input_bfd, input_section, (PTR) NULL, |
b34976b6 | 3721 | (Elf_Internal_Rela *) NULL, FALSE)); |
252b5132 RH |
3722 | if (internal_relocs == NULL) |
3723 | goto error_return; | |
3724 | ||
6cdc0ccc AM |
3725 | if (symtab_hdr->sh_info != 0) |
3726 | { | |
3727 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
3728 | if (isymbuf == NULL) | |
3729 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
3730 | symtab_hdr->sh_info, 0, | |
3731 | NULL, NULL, NULL); | |
3732 | if (isymbuf == NULL) | |
3733 | goto error_return; | |
3734 | } | |
252b5132 | 3735 | |
9ad5cbcf AM |
3736 | amt = symtab_hdr->sh_info; |
3737 | amt *= sizeof (asection *); | |
3738 | sections = (asection **) bfd_malloc (amt); | |
3739 | if (sections == NULL && amt != 0) | |
252b5132 RH |
3740 | goto error_return; |
3741 | ||
6cdc0ccc AM |
3742 | isymend = isymbuf + symtab_hdr->sh_info; |
3743 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
252b5132 RH |
3744 | { |
3745 | asection *isec; | |
3746 | ||
6cdc0ccc | 3747 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 3748 | isec = bfd_und_section_ptr; |
6cdc0ccc | 3749 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 3750 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 3751 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 RH |
3752 | isec = bfd_com_section_ptr; |
3753 | else | |
6cdc0ccc | 3754 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
252b5132 RH |
3755 | |
3756 | *secpp = isec; | |
3757 | } | |
3758 | ||
3759 | if (! mn10300_elf_relocate_section (output_bfd, link_info, input_bfd, | |
3760 | input_section, data, internal_relocs, | |
6cdc0ccc | 3761 | isymbuf, sections)) |
252b5132 RH |
3762 | goto error_return; |
3763 | ||
3764 | if (sections != NULL) | |
3765 | free (sections); | |
6cdc0ccc AM |
3766 | if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) |
3767 | free (isymbuf); | |
252b5132 RH |
3768 | if (internal_relocs != elf_section_data (input_section)->relocs) |
3769 | free (internal_relocs); | |
252b5132 RH |
3770 | } |
3771 | ||
3772 | return data; | |
3773 | ||
3774 | error_return: | |
6cdc0ccc AM |
3775 | if (sections != NULL) |
3776 | free (sections); | |
3777 | if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) | |
3778 | free (isymbuf); | |
252b5132 RH |
3779 | if (internal_relocs != NULL |
3780 | && internal_relocs != elf_section_data (input_section)->relocs) | |
3781 | free (internal_relocs); | |
252b5132 RH |
3782 | return NULL; |
3783 | } | |
3784 | ||
3785 | /* Assorted hash table functions. */ | |
3786 | ||
3787 | /* Initialize an entry in the link hash table. */ | |
3788 | ||
3789 | /* Create an entry in an MN10300 ELF linker hash table. */ | |
3790 | ||
3791 | static struct bfd_hash_entry * | |
3792 | elf32_mn10300_link_hash_newfunc (entry, table, string) | |
3793 | struct bfd_hash_entry *entry; | |
3794 | struct bfd_hash_table *table; | |
3795 | const char *string; | |
3796 | { | |
3797 | struct elf32_mn10300_link_hash_entry *ret = | |
3798 | (struct elf32_mn10300_link_hash_entry *) entry; | |
3799 | ||
3800 | /* Allocate the structure if it has not already been allocated by a | |
3801 | subclass. */ | |
3802 | if (ret == (struct elf32_mn10300_link_hash_entry *) NULL) | |
3803 | ret = ((struct elf32_mn10300_link_hash_entry *) | |
3804 | bfd_hash_allocate (table, | |
3805 | sizeof (struct elf32_mn10300_link_hash_entry))); | |
3806 | if (ret == (struct elf32_mn10300_link_hash_entry *) NULL) | |
3807 | return (struct bfd_hash_entry *) ret; | |
3808 | ||
3809 | /* Call the allocation method of the superclass. */ | |
3810 | ret = ((struct elf32_mn10300_link_hash_entry *) | |
3811 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
3812 | table, string)); | |
3813 | if (ret != (struct elf32_mn10300_link_hash_entry *) NULL) | |
3814 | { | |
3815 | ret->direct_calls = 0; | |
3816 | ret->stack_size = 0; | |
5354b572 | 3817 | ret->movm_args = 0; |
252b5132 | 3818 | ret->movm_stack_size = 0; |
03a12831 | 3819 | ret->pcrel_relocs_copied = NULL; |
252b5132 | 3820 | ret->flags = 0; |
252b5132 RH |
3821 | } |
3822 | ||
3823 | return (struct bfd_hash_entry *) ret; | |
3824 | } | |
3825 | ||
3826 | /* Create an mn10300 ELF linker hash table. */ | |
3827 | ||
3828 | static struct bfd_link_hash_table * | |
3829 | elf32_mn10300_link_hash_table_create (abfd) | |
3830 | bfd *abfd; | |
3831 | { | |
3832 | struct elf32_mn10300_link_hash_table *ret; | |
dc810e39 | 3833 | bfd_size_type amt = sizeof (struct elf32_mn10300_link_hash_table); |
252b5132 | 3834 | |
e2d34d7d | 3835 | ret = (struct elf32_mn10300_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
3836 | if (ret == (struct elf32_mn10300_link_hash_table *) NULL) |
3837 | return NULL; | |
3838 | ||
3839 | if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, | |
3840 | elf32_mn10300_link_hash_newfunc)) | |
3841 | { | |
e2d34d7d | 3842 | free (ret); |
252b5132 RH |
3843 | return NULL; |
3844 | } | |
3845 | ||
3846 | ret->flags = 0; | |
dc810e39 | 3847 | amt = sizeof (struct elf_link_hash_table); |
252b5132 | 3848 | ret->static_hash_table |
e2d34d7d | 3849 | = (struct elf32_mn10300_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
3850 | if (ret->static_hash_table == NULL) |
3851 | { | |
e2d34d7d | 3852 | free (ret); |
252b5132 RH |
3853 | return NULL; |
3854 | } | |
3855 | ||
3856 | if (! _bfd_elf_link_hash_table_init (&ret->static_hash_table->root, abfd, | |
3857 | elf32_mn10300_link_hash_newfunc)) | |
3858 | { | |
e2d34d7d DJ |
3859 | free (ret->static_hash_table); |
3860 | free (ret); | |
252b5132 RH |
3861 | return NULL; |
3862 | } | |
3863 | return &ret->root.root; | |
3864 | } | |
3865 | ||
e2d34d7d DJ |
3866 | /* Free an mn10300 ELF linker hash table. */ |
3867 | ||
3868 | static void | |
3869 | elf32_mn10300_link_hash_table_free (hash) | |
3870 | struct bfd_link_hash_table *hash; | |
3871 | { | |
3872 | struct elf32_mn10300_link_hash_table *ret | |
3873 | = (struct elf32_mn10300_link_hash_table *) hash; | |
3874 | ||
3875 | _bfd_generic_link_hash_table_free | |
3876 | ((struct bfd_link_hash_table *) ret->static_hash_table); | |
3877 | _bfd_generic_link_hash_table_free | |
3878 | ((struct bfd_link_hash_table *) ret); | |
3879 | } | |
3880 | ||
dc810e39 | 3881 | static unsigned long |
252b5132 RH |
3882 | elf_mn10300_mach (flags) |
3883 | flagword flags; | |
3884 | { | |
3885 | switch (flags & EF_MN10300_MACH) | |
3886 | { | |
010ac81f KH |
3887 | case E_MN10300_MACH_MN10300: |
3888 | default: | |
3889 | return bfd_mach_mn10300; | |
252b5132 | 3890 | |
010ac81f KH |
3891 | case E_MN10300_MACH_AM33: |
3892 | return bfd_mach_am33; | |
b08fa4d3 AO |
3893 | |
3894 | case E_MN10300_MACH_AM33_2: | |
3895 | return bfd_mach_am33_2; | |
252b5132 RH |
3896 | } |
3897 | } | |
3898 | ||
3899 | /* The final processing done just before writing out a MN10300 ELF object | |
3900 | file. This gets the MN10300 architecture right based on the machine | |
3901 | number. */ | |
3902 | ||
252b5132 RH |
3903 | void |
3904 | _bfd_mn10300_elf_final_write_processing (abfd, linker) | |
3905 | bfd *abfd; | |
b34976b6 | 3906 | bfd_boolean linker ATTRIBUTE_UNUSED; |
252b5132 RH |
3907 | { |
3908 | unsigned long val; | |
252b5132 RH |
3909 | |
3910 | switch (bfd_get_mach (abfd)) | |
3911 | { | |
010ac81f KH |
3912 | default: |
3913 | case bfd_mach_mn10300: | |
3914 | val = E_MN10300_MACH_MN10300; | |
3915 | break; | |
3916 | ||
3917 | case bfd_mach_am33: | |
3918 | val = E_MN10300_MACH_AM33; | |
3919 | break; | |
b08fa4d3 AO |
3920 | |
3921 | case bfd_mach_am33_2: | |
3922 | val = E_MN10300_MACH_AM33_2; | |
3923 | break; | |
252b5132 RH |
3924 | } |
3925 | ||
3926 | elf_elfheader (abfd)->e_flags &= ~ (EF_MN10300_MACH); | |
3927 | elf_elfheader (abfd)->e_flags |= val; | |
3928 | } | |
3929 | ||
b34976b6 | 3930 | bfd_boolean |
252b5132 RH |
3931 | _bfd_mn10300_elf_object_p (abfd) |
3932 | bfd *abfd; | |
3933 | { | |
3934 | bfd_default_set_arch_mach (abfd, bfd_arch_mn10300, | |
010ac81f | 3935 | elf_mn10300_mach (elf_elfheader (abfd)->e_flags)); |
b34976b6 | 3936 | return TRUE; |
252b5132 RH |
3937 | } |
3938 | ||
3939 | /* Merge backend specific data from an object file to the output | |
3940 | object file when linking. */ | |
3941 | ||
b34976b6 | 3942 | bfd_boolean |
252b5132 RH |
3943 | _bfd_mn10300_elf_merge_private_bfd_data (ibfd, obfd) |
3944 | bfd *ibfd; | |
3945 | bfd *obfd; | |
3946 | { | |
3947 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
3948 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 3949 | return TRUE; |
252b5132 RH |
3950 | |
3951 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
3952 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
3953 | { | |
3954 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
3955 | bfd_get_mach (ibfd))) | |
b34976b6 | 3956 | return FALSE; |
252b5132 RH |
3957 | } |
3958 | ||
b34976b6 | 3959 | return TRUE; |
252b5132 RH |
3960 | } |
3961 | ||
03a12831 AO |
3962 | #define PLT0_ENTRY_SIZE 15 |
3963 | #define PLT_ENTRY_SIZE 20 | |
3964 | #define PIC_PLT_ENTRY_SIZE 24 | |
3965 | ||
3966 | static const bfd_byte elf_mn10300_plt0_entry[PLT0_ENTRY_SIZE] = | |
3967 | { | |
3968 | 0xfc, 0xa0, 0, 0, 0, 0, /* mov (.got+8),a0 */ | |
3969 | 0xfe, 0xe, 0x10, 0, 0, 0, 0, /* mov (.got+4),r1 */ | |
3970 | 0xf0, 0xf4, /* jmp (a0) */ | |
3971 | }; | |
3972 | ||
3973 | static const bfd_byte elf_mn10300_plt_entry[PLT_ENTRY_SIZE] = | |
3974 | { | |
3975 | 0xfc, 0xa0, 0, 0, 0, 0, /* mov (nameN@GOT + .got),a0 */ | |
3976 | 0xf0, 0xf4, /* jmp (a0) */ | |
3977 | 0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */ | |
3978 | 0xdc, 0, 0, 0, 0, /* jmp .plt0 */ | |
3979 | }; | |
3980 | ||
3981 | static const bfd_byte elf_mn10300_pic_plt_entry[PIC_PLT_ENTRY_SIZE] = | |
3982 | { | |
3983 | 0xfc, 0x22, 0, 0, 0, 0, /* mov (nameN@GOT,a2),a0 */ | |
3984 | 0xf0, 0xf4, /* jmp (a0) */ | |
3985 | 0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */ | |
3986 | 0xf8, 0x22, 8, /* mov (8,a2),a0 */ | |
3987 | 0xfb, 0xa, 0x1a, 4, /* mov (4,a2),r1 */ | |
3988 | 0xf0, 0xf4, /* jmp (a0) */ | |
3989 | }; | |
3990 | ||
3991 | /* Return size of the first PLT entry. */ | |
3992 | #define elf_mn10300_sizeof_plt0(info) \ | |
3993 | (info->shared ? PIC_PLT_ENTRY_SIZE : PLT0_ENTRY_SIZE) | |
3994 | ||
3995 | /* Return size of a PLT entry. */ | |
3996 | #define elf_mn10300_sizeof_plt(info) \ | |
3997 | (info->shared ? PIC_PLT_ENTRY_SIZE : PLT_ENTRY_SIZE) | |
3998 | ||
3999 | /* Return offset of the PLT0 address in an absolute PLT entry. */ | |
4000 | #define elf_mn10300_plt_plt0_offset(info) 16 | |
4001 | ||
4002 | /* Return offset of the linker in PLT0 entry. */ | |
4003 | #define elf_mn10300_plt0_linker_offset(info) 2 | |
4004 | ||
4005 | /* Return offset of the GOT id in PLT0 entry. */ | |
4006 | #define elf_mn10300_plt0_gotid_offset(info) 9 | |
4007 | ||
4cc11e76 | 4008 | /* Return offset of the temporary in PLT entry */ |
03a12831 AO |
4009 | #define elf_mn10300_plt_temp_offset(info) 8 |
4010 | ||
4011 | /* Return offset of the symbol in PLT entry. */ | |
4012 | #define elf_mn10300_plt_symbol_offset(info) 2 | |
4013 | ||
4014 | /* Return offset of the relocation in PLT entry. */ | |
4015 | #define elf_mn10300_plt_reloc_offset(info) 11 | |
4016 | ||
4017 | /* The name of the dynamic interpreter. This is put in the .interp | |
4018 | section. */ | |
4019 | ||
4020 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
4021 | ||
4022 | /* Create dynamic sections when linking against a dynamic object. */ | |
4023 | ||
4024 | static bfd_boolean | |
4025 | _bfd_mn10300_elf_create_dynamic_sections (abfd, info) | |
4026 | bfd *abfd; | |
4027 | struct bfd_link_info *info; | |
4028 | { | |
4029 | flagword flags; | |
4030 | asection * s; | |
9c5bfbb7 | 4031 | const struct elf_backend_data * bed = get_elf_backend_data (abfd); |
03a12831 AO |
4032 | int ptralign = 0; |
4033 | ||
4034 | switch (bed->s->arch_size) | |
4035 | { | |
4036 | case 32: | |
4037 | ptralign = 2; | |
4038 | break; | |
4039 | ||
4040 | case 64: | |
4041 | ptralign = 3; | |
4042 | break; | |
4043 | ||
4044 | default: | |
4045 | bfd_set_error (bfd_error_bad_value); | |
4046 | return FALSE; | |
4047 | } | |
4048 | ||
4049 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
4050 | .rel[a].bss sections. */ | |
4051 | ||
4052 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
4053 | | SEC_LINKER_CREATED); | |
4054 | ||
4055 | s = bfd_make_section (abfd, | |
4056 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); | |
4057 | if (s == NULL | |
4058 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
4059 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
4060 | return FALSE; | |
4061 | ||
4062 | if (! _bfd_mn10300_elf_create_got_section (abfd, info)) | |
4063 | return FALSE; | |
4064 | ||
4065 | { | |
4066 | const char * secname; | |
4067 | char * relname; | |
4068 | flagword secflags; | |
4069 | asection * sec; | |
4070 | ||
4071 | for (sec = abfd->sections; sec; sec = sec->next) | |
4072 | { | |
4073 | secflags = bfd_get_section_flags (abfd, sec); | |
4074 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) | |
4075 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) | |
4076 | continue; | |
4077 | ||
4078 | secname = bfd_get_section_name (abfd, sec); | |
4079 | relname = (char *) bfd_malloc (strlen (secname) + 6); | |
4080 | strcpy (relname, ".rela"); | |
4081 | strcat (relname, secname); | |
4082 | ||
4083 | s = bfd_make_section (abfd, relname); | |
4084 | if (s == NULL | |
4085 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
4086 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
4087 | return FALSE; | |
4088 | } | |
4089 | } | |
4090 | ||
4091 | if (bed->want_dynbss) | |
4092 | { | |
4093 | /* The .dynbss section is a place to put symbols which are defined | |
4094 | by dynamic objects, are referenced by regular objects, and are | |
4095 | not functions. We must allocate space for them in the process | |
4096 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
4097 | initialize them at run time. The linker script puts the .dynbss | |
4098 | section into the .bss section of the final image. */ | |
4099 | s = bfd_make_section (abfd, ".dynbss"); | |
4100 | if (s == NULL | |
4101 | || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) | |
4102 | return FALSE; | |
4103 | ||
4104 | /* The .rel[a].bss section holds copy relocs. This section is not | |
4105 | normally needed. We need to create it here, though, so that the | |
4106 | linker will map it to an output section. We can't just create it | |
4107 | only if we need it, because we will not know whether we need it | |
4108 | until we have seen all the input files, and the first time the | |
4109 | main linker code calls BFD after examining all the input files | |
4110 | (size_dynamic_sections) the input sections have already been | |
4111 | mapped to the output sections. If the section turns out not to | |
4112 | be needed, we can discard it later. We will never need this | |
4113 | section when generating a shared object, since they do not use | |
4114 | copy relocs. */ | |
4115 | if (! info->shared) | |
4116 | { | |
4117 | s = bfd_make_section (abfd, | |
4118 | (bed->default_use_rela_p | |
4119 | ? ".rela.bss" : ".rel.bss")); | |
4120 | if (s == NULL | |
4121 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) | |
4122 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
4123 | return FALSE; | |
4124 | } | |
4125 | } | |
4126 | ||
4127 | return TRUE; | |
4128 | } | |
4129 | \f | |
4130 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4131 | regular object. The current definition is in some section of the | |
4132 | dynamic object, but we're not including those sections. We have to | |
4133 | change the definition to something the rest of the link can | |
4134 | understand. */ | |
4135 | ||
4136 | static bfd_boolean | |
4137 | _bfd_mn10300_elf_adjust_dynamic_symbol (info, h) | |
4138 | struct bfd_link_info * info; | |
4139 | struct elf_link_hash_entry * h; | |
4140 | { | |
4141 | bfd * dynobj; | |
4142 | asection * s; | |
4143 | unsigned int power_of_two; | |
4144 | ||
4145 | dynobj = elf_hash_table (info)->dynobj; | |
4146 | ||
4147 | /* Make sure we know what is going on here. */ | |
4148 | BFD_ASSERT (dynobj != NULL | |
4149 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) | |
4150 | || h->weakdef != NULL | |
4151 | || ((h->elf_link_hash_flags | |
4152 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4153 | && (h->elf_link_hash_flags | |
4154 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
4155 | && (h->elf_link_hash_flags | |
4156 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
4157 | ||
4158 | /* If this is a function, put it in the procedure linkage table. We | |
4159 | will fill in the contents of the procedure linkage table later, | |
4160 | when we know the address of the .got section. */ | |
4161 | if (h->type == STT_FUNC | |
4162 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
4163 | { | |
4164 | if (! info->shared | |
4165 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 | |
4166 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0) | |
4167 | { | |
4168 | /* This case can occur if we saw a PLT reloc in an input | |
4169 | file, but the symbol was never referred to by a dynamic | |
4170 | object. In such a case, we don't actually need to build | |
4171 | a procedure linkage table, and we can just do a REL32 | |
4172 | reloc instead. */ | |
4173 | BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0); | |
4174 | return TRUE; | |
4175 | } | |
4176 | ||
4177 | /* Make sure this symbol is output as a dynamic symbol. */ | |
4178 | if (h->dynindx == -1) | |
4179 | { | |
c152c796 | 4180 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
03a12831 AO |
4181 | return FALSE; |
4182 | } | |
4183 | ||
4184 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
4185 | BFD_ASSERT (s != NULL); | |
4186 | ||
4187 | /* If this is the first .plt entry, make room for the special | |
4188 | first entry. */ | |
eea6121a AM |
4189 | if (s->size == 0) |
4190 | s->size += elf_mn10300_sizeof_plt0 (info); | |
03a12831 AO |
4191 | |
4192 | /* If this symbol is not defined in a regular file, and we are | |
4193 | not generating a shared library, then set the symbol to this | |
4194 | location in the .plt. This is required to make function | |
4195 | pointers compare as equal between the normal executable and | |
4196 | the shared library. */ | |
4197 | if (! info->shared | |
4198 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
4199 | { | |
4200 | h->root.u.def.section = s; | |
eea6121a | 4201 | h->root.u.def.value = s->size; |
03a12831 AO |
4202 | } |
4203 | ||
eea6121a | 4204 | h->plt.offset = s->size; |
03a12831 AO |
4205 | |
4206 | /* Make room for this entry. */ | |
eea6121a | 4207 | s->size += elf_mn10300_sizeof_plt (info); |
03a12831 AO |
4208 | |
4209 | /* We also need to make an entry in the .got.plt section, which | |
4210 | will be placed in the .got section by the linker script. */ | |
4211 | ||
4212 | s = bfd_get_section_by_name (dynobj, ".got.plt"); | |
4213 | BFD_ASSERT (s != NULL); | |
eea6121a | 4214 | s->size += 4; |
03a12831 AO |
4215 | |
4216 | /* We also need to make an entry in the .rela.plt section. */ | |
4217 | ||
4218 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
4219 | BFD_ASSERT (s != NULL); | |
eea6121a | 4220 | s->size += sizeof (Elf32_External_Rela); |
03a12831 AO |
4221 | |
4222 | return TRUE; | |
4223 | } | |
4224 | ||
4225 | /* If this is a weak symbol, and there is a real definition, the | |
4226 | processor independent code will have arranged for us to see the | |
4227 | real definition first, and we can just use the same value. */ | |
4228 | if (h->weakdef != NULL) | |
4229 | { | |
4230 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
4231 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
4232 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
4233 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
4234 | return TRUE; | |
4235 | } | |
4236 | ||
4237 | /* This is a reference to a symbol defined by a dynamic object which | |
4238 | is not a function. */ | |
4239 | ||
4240 | /* If we are creating a shared library, we must presume that the | |
4241 | only references to the symbol are via the global offset table. | |
4242 | For such cases we need not do anything here; the relocations will | |
4243 | be handled correctly by relocate_section. */ | |
4244 | if (info->shared) | |
4245 | return TRUE; | |
4246 | ||
4247 | /* If there are no references to this symbol that do not use the | |
4248 | GOT, we don't need to generate a copy reloc. */ | |
4249 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
4250 | return TRUE; | |
4251 | ||
4252 | /* We must allocate the symbol in our .dynbss section, which will | |
4253 | become part of the .bss section of the executable. There will be | |
4254 | an entry for this symbol in the .dynsym section. The dynamic | |
4255 | object will contain position independent code, so all references | |
4256 | from the dynamic object to this symbol will go through the global | |
4257 | offset table. The dynamic linker will use the .dynsym entry to | |
4258 | determine the address it must put in the global offset table, so | |
4259 | both the dynamic object and the regular object will refer to the | |
4260 | same memory location for the variable. */ | |
4261 | ||
4262 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
4263 | BFD_ASSERT (s != NULL); | |
4264 | ||
4265 | /* We must generate a R_MN10300_COPY reloc to tell the dynamic linker to | |
4266 | copy the initial value out of the dynamic object and into the | |
4267 | runtime process image. We need to remember the offset into the | |
4268 | .rela.bss section we are going to use. */ | |
4269 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4270 | { | |
4271 | asection * srel; | |
4272 | ||
4273 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
4274 | BFD_ASSERT (srel != NULL); | |
eea6121a | 4275 | srel->size += sizeof (Elf32_External_Rela); |
03a12831 AO |
4276 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
4277 | } | |
4278 | ||
4279 | /* We need to figure out the alignment required for this symbol. I | |
4280 | have no idea how ELF linkers handle this. */ | |
4281 | power_of_two = bfd_log2 (h->size); | |
4282 | if (power_of_two > 3) | |
4283 | power_of_two = 3; | |
4284 | ||
4285 | /* Apply the required alignment. */ | |
eea6121a | 4286 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
03a12831 AO |
4287 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
4288 | { | |
4289 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
4290 | return FALSE; | |
4291 | } | |
4292 | ||
4293 | /* Define the symbol as being at this point in the section. */ | |
4294 | h->root.u.def.section = s; | |
eea6121a | 4295 | h->root.u.def.value = s->size; |
03a12831 AO |
4296 | |
4297 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 4298 | s->size += h->size; |
03a12831 AO |
4299 | |
4300 | return TRUE; | |
4301 | } | |
4302 | ||
4303 | /* This function is called via elf32_mn10300_link_hash_traverse if we are | |
4304 | creating a shared object with -Bsymbolic. It discards the space | |
4305 | allocated to copy PC relative relocs against symbols which are | |
4306 | defined in regular objects. We allocated space for them in the | |
4307 | check_relocs routine, but we won't fill them in in the | |
4308 | relocate_section routine. */ | |
4309 | ||
4310 | static bfd_boolean | |
4311 | _bfd_mn10300_elf_discard_copies (h, info) | |
4312 | struct elf32_mn10300_link_hash_entry *h; | |
4313 | struct bfd_link_info *info; | |
4314 | { | |
4315 | struct elf_mn10300_pcrel_relocs_copied *s; | |
4316 | ||
4317 | /* If a symbol has been forced local or we have found a regular | |
4318 | definition for the symbolic link case, then we won't be needing | |
4319 | any relocs. */ | |
4320 | if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
4321 | && ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
4322 | || info->symbolic)) | |
4323 | { | |
4324 | for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) | |
eea6121a | 4325 | s->section->size -= s->count * sizeof (Elf32_External_Rel); |
03a12831 AO |
4326 | } |
4327 | ||
4328 | return TRUE; | |
4329 | } | |
4330 | ||
4331 | /* Set the sizes of the dynamic sections. */ | |
4332 | ||
4333 | static bfd_boolean | |
4334 | _bfd_mn10300_elf_size_dynamic_sections (output_bfd, info) | |
4335 | bfd * output_bfd; | |
4336 | struct bfd_link_info * info; | |
4337 | { | |
4338 | bfd * dynobj; | |
4339 | asection * s; | |
4340 | bfd_boolean plt; | |
4341 | bfd_boolean relocs; | |
4342 | bfd_boolean reltext; | |
4343 | ||
4344 | dynobj = elf_hash_table (info)->dynobj; | |
4345 | BFD_ASSERT (dynobj != NULL); | |
4346 | ||
4347 | if (elf_hash_table (info)->dynamic_sections_created) | |
4348 | { | |
4349 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 4350 | if (info->executable) |
03a12831 AO |
4351 | { |
4352 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
4353 | BFD_ASSERT (s != NULL); | |
eea6121a | 4354 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
03a12831 AO |
4355 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
4356 | } | |
4357 | } | |
4358 | else | |
4359 | { | |
4360 | /* We may have created entries in the .rela.got section. | |
4361 | However, if we are not creating the dynamic sections, we will | |
4362 | not actually use these entries. Reset the size of .rela.got, | |
4363 | which will cause it to get stripped from the output file | |
4364 | below. */ | |
4365 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
4366 | if (s != NULL) | |
eea6121a | 4367 | s->size = 0; |
03a12831 AO |
4368 | } |
4369 | ||
4370 | /* If this is a -Bsymbolic shared link, then we need to discard all | |
4371 | PC relative relocs against symbols defined in a regular object. | |
4372 | We allocated space for them in the check_relocs routine, but we | |
4373 | will not fill them in in the relocate_section routine. */ | |
4374 | if (info->shared && info->symbolic) | |
4375 | elf32_mn10300_link_hash_traverse (elf32_mn10300_hash_table (info), | |
4376 | _bfd_mn10300_elf_discard_copies, | |
4377 | info); | |
4378 | ||
4379 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
4380 | determined the sizes of the various dynamic sections. Allocate | |
4381 | memory for them. */ | |
4382 | plt = FALSE; | |
4383 | relocs = FALSE; | |
4384 | reltext = FALSE; | |
4385 | for (s = dynobj->sections; s != NULL; s = s->next) | |
4386 | { | |
4387 | const char * name; | |
4388 | bfd_boolean strip; | |
4389 | ||
4390 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
4391 | continue; | |
4392 | ||
4393 | /* It's OK to base decisions on the section name, because none | |
4394 | of the dynobj section names depend upon the input files. */ | |
4395 | name = bfd_get_section_name (dynobj, s); | |
4396 | ||
4397 | strip = FALSE; | |
4398 | ||
4399 | if (strcmp (name, ".plt") == 0) | |
4400 | { | |
eea6121a | 4401 | if (s->size == 0) |
03a12831 AO |
4402 | /* Strip this section if we don't need it; see the |
4403 | comment below. */ | |
4404 | strip = TRUE; | |
4405 | else | |
4406 | /* Remember whether there is a PLT. */ | |
4407 | plt = TRUE; | |
4408 | } | |
4409 | else if (strncmp (name, ".rela", 5) == 0) | |
4410 | { | |
eea6121a | 4411 | if (s->size == 0) |
03a12831 AO |
4412 | { |
4413 | /* If we don't need this section, strip it from the | |
4414 | output file. This is mostly to handle .rela.bss and | |
4415 | .rela.plt. We must create both sections in | |
4416 | create_dynamic_sections, because they must be created | |
4417 | before the linker maps input sections to output | |
4418 | sections. The linker does that before | |
4419 | adjust_dynamic_symbol is called, and it is that | |
4420 | function which decides whether anything needs to go | |
4421 | into these sections. */ | |
4422 | strip = TRUE; | |
4423 | } | |
4424 | else | |
4425 | { | |
4426 | asection * target; | |
4427 | ||
4428 | /* Remember whether there are any reloc sections other | |
4429 | than .rela.plt. */ | |
4430 | if (strcmp (name, ".rela.plt") != 0) | |
4431 | { | |
4432 | const char * outname; | |
4433 | ||
4434 | relocs = TRUE; | |
4435 | ||
4436 | /* If this relocation section applies to a read only | |
4437 | section, then we probably need a DT_TEXTREL | |
4438 | entry. The entries in the .rela.plt section | |
4439 | really apply to the .got section, which we | |
4440 | created ourselves and so know is not readonly. */ | |
4441 | outname = bfd_get_section_name (output_bfd, | |
4442 | s->output_section); | |
4443 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
4444 | if (target != NULL | |
4445 | && (target->flags & SEC_READONLY) != 0 | |
4446 | && (target->flags & SEC_ALLOC) != 0) | |
4447 | reltext = TRUE; | |
4448 | } | |
4449 | ||
4450 | /* We use the reloc_count field as a counter if we need | |
4451 | to copy relocs into the output file. */ | |
4452 | s->reloc_count = 0; | |
4453 | } | |
4454 | } | |
4455 | else if (strncmp (name, ".got", 4) != 0) | |
4456 | /* It's not one of our sections, so don't allocate space. */ | |
4457 | continue; | |
4458 | ||
4459 | if (strip) | |
4460 | { | |
4461 | _bfd_strip_section_from_output (info, s); | |
4462 | continue; | |
4463 | } | |
4464 | ||
4465 | /* Allocate memory for the section contents. We use bfd_zalloc | |
4466 | here in case unused entries are not reclaimed before the | |
4467 | section's contents are written out. This should not happen, | |
4468 | but this way if it does, we get a R_MN10300_NONE reloc | |
4469 | instead of garbage. */ | |
eea6121a AM |
4470 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
4471 | if (s->contents == NULL && s->size != 0) | |
03a12831 AO |
4472 | return FALSE; |
4473 | } | |
4474 | ||
4475 | if (elf_hash_table (info)->dynamic_sections_created) | |
4476 | { | |
4477 | /* Add some entries to the .dynamic section. We fill in the | |
4478 | values later, in _bfd_mn10300_elf_finish_dynamic_sections, | |
4479 | but we must add the entries now so that we get the correct | |
4480 | size for the .dynamic section. The DT_DEBUG entry is filled | |
4481 | in by the dynamic linker and used by the debugger. */ | |
4482 | if (! info->shared) | |
4483 | { | |
5a580b3a | 4484 | if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) |
03a12831 AO |
4485 | return FALSE; |
4486 | } | |
4487 | ||
4488 | if (plt) | |
4489 | { | |
5a580b3a AM |
4490 | if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) |
4491 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
4492 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) | |
4493 | || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) | |
03a12831 AO |
4494 | return FALSE; |
4495 | } | |
4496 | ||
4497 | if (relocs) | |
4498 | { | |
5a580b3a AM |
4499 | if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) |
4500 | || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) | |
4501 | || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, | |
4502 | sizeof (Elf32_External_Rela))) | |
03a12831 AO |
4503 | return FALSE; |
4504 | } | |
4505 | ||
4506 | if (reltext) | |
4507 | { | |
5a580b3a | 4508 | if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) |
03a12831 AO |
4509 | return FALSE; |
4510 | } | |
4511 | } | |
4512 | ||
4513 | return TRUE; | |
4514 | } | |
4515 | ||
4516 | /* Finish up dynamic symbol handling. We set the contents of various | |
4517 | dynamic sections here. */ | |
4518 | ||
4519 | static bfd_boolean | |
4520 | _bfd_mn10300_elf_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4521 | bfd * output_bfd; | |
4522 | struct bfd_link_info * info; | |
4523 | struct elf_link_hash_entry * h; | |
4524 | Elf_Internal_Sym * sym; | |
4525 | { | |
4526 | bfd * dynobj; | |
4527 | ||
4528 | dynobj = elf_hash_table (info)->dynobj; | |
4529 | ||
4530 | if (h->plt.offset != (bfd_vma) -1) | |
4531 | { | |
4532 | asection * splt; | |
4533 | asection * sgot; | |
4534 | asection * srel; | |
4535 | bfd_vma plt_index; | |
4536 | bfd_vma got_offset; | |
4537 | Elf_Internal_Rela rel; | |
4538 | ||
4539 | /* This symbol has an entry in the procedure linkage table. Set | |
4540 | it up. */ | |
4541 | ||
4542 | BFD_ASSERT (h->dynindx != -1); | |
4543 | ||
4544 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
4545 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
4546 | srel = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
4547 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); | |
4548 | ||
4549 | /* Get the index in the procedure linkage table which | |
4550 | corresponds to this symbol. This is the index of this symbol | |
4551 | in all the symbols for which we are making plt entries. The | |
4552 | first entry in the procedure linkage table is reserved. */ | |
4553 | plt_index = ((h->plt.offset - elf_mn10300_sizeof_plt0 (info)) | |
4554 | / elf_mn10300_sizeof_plt (info)); | |
4555 | ||
4556 | /* Get the offset into the .got table of the entry that | |
4557 | corresponds to this function. Each .got entry is 4 bytes. | |
4558 | The first three are reserved. */ | |
4559 | got_offset = (plt_index + 3) * 4; | |
4560 | ||
4561 | /* Fill in the entry in the procedure linkage table. */ | |
4562 | if (! info->shared) | |
4563 | { | |
4564 | memcpy (splt->contents + h->plt.offset, elf_mn10300_plt_entry, | |
4565 | elf_mn10300_sizeof_plt (info)); | |
4566 | bfd_put_32 (output_bfd, | |
4567 | (sgot->output_section->vma | |
4568 | + sgot->output_offset | |
4569 | + got_offset), | |
4570 | (splt->contents + h->plt.offset | |
4571 | + elf_mn10300_plt_symbol_offset (info))); | |
4572 | ||
4573 | bfd_put_32 (output_bfd, | |
4574 | (1 - h->plt.offset - elf_mn10300_plt_plt0_offset (info)), | |
4575 | (splt->contents + h->plt.offset | |
4576 | + elf_mn10300_plt_plt0_offset (info))); | |
4577 | } | |
4578 | else | |
4579 | { | |
4580 | memcpy (splt->contents + h->plt.offset, elf_mn10300_pic_plt_entry, | |
4581 | elf_mn10300_sizeof_plt (info)); | |
4582 | ||
4583 | bfd_put_32 (output_bfd, got_offset, | |
4584 | (splt->contents + h->plt.offset | |
4585 | + elf_mn10300_plt_symbol_offset (info))); | |
4586 | } | |
4587 | ||
4588 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), | |
4589 | (splt->contents + h->plt.offset | |
4590 | + elf_mn10300_plt_reloc_offset (info))); | |
4591 | ||
4592 | /* Fill in the entry in the global offset table. */ | |
4593 | bfd_put_32 (output_bfd, | |
4594 | (splt->output_section->vma | |
4595 | + splt->output_offset | |
4596 | + h->plt.offset | |
4597 | + elf_mn10300_plt_temp_offset (info)), | |
4598 | sgot->contents + got_offset); | |
4599 | ||
4600 | /* Fill in the entry in the .rela.plt section. */ | |
4601 | rel.r_offset = (sgot->output_section->vma | |
4602 | + sgot->output_offset | |
4603 | + got_offset); | |
4604 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_JMP_SLOT); | |
4605 | rel.r_addend = 0; | |
4606 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
560e09e9 NC |
4607 | (bfd_byte *) ((Elf32_External_Rela *) srel->contents |
4608 | + plt_index)); | |
03a12831 AO |
4609 | |
4610 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
4611 | /* Mark the symbol as undefined, rather than as defined in | |
4612 | the .plt section. Leave the value alone. */ | |
4613 | sym->st_shndx = SHN_UNDEF; | |
4614 | } | |
4615 | ||
4616 | if (h->got.offset != (bfd_vma) -1) | |
4617 | { | |
4618 | asection * sgot; | |
4619 | asection * srel; | |
4620 | Elf_Internal_Rela rel; | |
4621 | ||
4622 | /* This symbol has an entry in the global offset table. Set it up. */ | |
4623 | ||
4624 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
4625 | srel = bfd_get_section_by_name (dynobj, ".rela.got"); | |
4626 | BFD_ASSERT (sgot != NULL && srel != NULL); | |
4627 | ||
4628 | rel.r_offset = (sgot->output_section->vma | |
4629 | + sgot->output_offset | |
4630 | + (h->got.offset &~ 1)); | |
4631 | ||
4632 | /* If this is a -Bsymbolic link, and the symbol is defined | |
4633 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
4634 | the symbol was forced to be local because of a version file. | |
4635 | The entry in the global offset table will already have been | |
4636 | initialized in the relocate_section function. */ | |
4637 | if (info->shared | |
4638 | && (info->symbolic || h->dynindx == -1) | |
4639 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
4640 | { | |
4641 | rel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE); | |
4642 | rel.r_addend = (h->root.u.def.value | |
4643 | + h->root.u.def.section->output_section->vma | |
4644 | + h->root.u.def.section->output_offset); | |
4645 | } | |
4646 | else | |
4647 | { | |
4648 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
4649 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_GLOB_DAT); | |
4650 | rel.r_addend = 0; | |
4651 | } | |
4652 | ||
4653 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
560e09e9 NC |
4654 | (bfd_byte *) ((Elf32_External_Rela *) srel->contents |
4655 | + srel->reloc_count)); | |
03a12831 AO |
4656 | ++ srel->reloc_count; |
4657 | } | |
4658 | ||
4659 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
4660 | { | |
4661 | asection * s; | |
4662 | Elf_Internal_Rela rel; | |
4663 | ||
4664 | /* This symbol needs a copy reloc. Set it up. */ | |
4665 | BFD_ASSERT (h->dynindx != -1 | |
4666 | && (h->root.type == bfd_link_hash_defined | |
4667 | || h->root.type == bfd_link_hash_defweak)); | |
4668 | ||
4669 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
4670 | ".rela.bss"); | |
4671 | BFD_ASSERT (s != NULL); | |
4672 | ||
4673 | rel.r_offset = (h->root.u.def.value | |
4674 | + h->root.u.def.section->output_section->vma | |
4675 | + h->root.u.def.section->output_offset); | |
4676 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_COPY); | |
4677 | rel.r_addend = 0; | |
4678 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
560e09e9 NC |
4679 | (bfd_byte *) ((Elf32_External_Rela *) s->contents |
4680 | + s->reloc_count)); | |
03a12831 AO |
4681 | ++ s->reloc_count; |
4682 | } | |
4683 | ||
4684 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4685 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4686 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
4687 | sym->st_shndx = SHN_ABS; | |
4688 | ||
4689 | return TRUE; | |
4690 | } | |
4691 | ||
4692 | /* Finish up the dynamic sections. */ | |
4693 | ||
4694 | static bfd_boolean | |
4695 | _bfd_mn10300_elf_finish_dynamic_sections (output_bfd, info) | |
4696 | bfd * output_bfd; | |
4697 | struct bfd_link_info * info; | |
4698 | { | |
4699 | bfd * dynobj; | |
4700 | asection * sgot; | |
4701 | asection * sdyn; | |
4702 | ||
4703 | dynobj = elf_hash_table (info)->dynobj; | |
4704 | ||
4705 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
4706 | BFD_ASSERT (sgot != NULL); | |
4707 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4708 | ||
4709 | if (elf_hash_table (info)->dynamic_sections_created) | |
4710 | { | |
4711 | asection * splt; | |
4712 | Elf32_External_Dyn * dyncon; | |
4713 | Elf32_External_Dyn * dynconend; | |
4714 | ||
4715 | BFD_ASSERT (sdyn != NULL); | |
4716 | ||
4717 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 4718 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
03a12831 AO |
4719 | |
4720 | for (; dyncon < dynconend; dyncon++) | |
4721 | { | |
4722 | Elf_Internal_Dyn dyn; | |
4723 | const char * name; | |
4724 | asection * s; | |
4725 | ||
4726 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4727 | ||
4728 | switch (dyn.d_tag) | |
4729 | { | |
4730 | default: | |
4731 | break; | |
4732 | ||
4733 | case DT_PLTGOT: | |
4734 | name = ".got"; | |
4735 | goto get_vma; | |
4736 | ||
4737 | case DT_JMPREL: | |
4738 | name = ".rela.plt"; | |
4739 | get_vma: | |
4740 | s = bfd_get_section_by_name (output_bfd, name); | |
4741 | BFD_ASSERT (s != NULL); | |
4742 | dyn.d_un.d_ptr = s->vma; | |
4743 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4744 | break; | |
4745 | ||
4746 | case DT_PLTRELSZ: | |
4747 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
4748 | BFD_ASSERT (s != NULL); | |
eea6121a | 4749 | dyn.d_un.d_val = s->size; |
03a12831 AO |
4750 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
4751 | break; | |
4752 | ||
4753 | case DT_RELASZ: | |
4754 | /* My reading of the SVR4 ABI indicates that the | |
4755 | procedure linkage table relocs (DT_JMPREL) should be | |
4756 | included in the overall relocs (DT_RELA). This is | |
4757 | what Solaris does. However, UnixWare can not handle | |
4758 | that case. Therefore, we override the DT_RELASZ entry | |
4759 | here to make it not include the JMPREL relocs. Since | |
4760 | the linker script arranges for .rela.plt to follow all | |
4761 | other relocation sections, we don't have to worry | |
4762 | about changing the DT_RELA entry. */ | |
4763 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
4764 | if (s != NULL) | |
eea6121a | 4765 | dyn.d_un.d_val -= s->size; |
03a12831 AO |
4766 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
4767 | break; | |
4768 | } | |
4769 | } | |
4770 | ||
4771 | /* Fill in the first entry in the procedure linkage table. */ | |
4772 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
eea6121a | 4773 | if (splt && splt->size > 0) |
03a12831 AO |
4774 | { |
4775 | if (info->shared) | |
4776 | { | |
4777 | memcpy (splt->contents, elf_mn10300_pic_plt_entry, | |
4778 | elf_mn10300_sizeof_plt (info)); | |
4779 | } | |
4780 | else | |
4781 | { | |
4782 | memcpy (splt->contents, elf_mn10300_plt0_entry, PLT0_ENTRY_SIZE); | |
4783 | bfd_put_32 (output_bfd, | |
4784 | sgot->output_section->vma + sgot->output_offset + 4, | |
4785 | splt->contents + elf_mn10300_plt0_gotid_offset (info)); | |
4786 | bfd_put_32 (output_bfd, | |
4787 | sgot->output_section->vma + sgot->output_offset + 8, | |
4788 | splt->contents + elf_mn10300_plt0_linker_offset (info)); | |
4789 | } | |
4790 | ||
4791 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
4792 | really seem like the right value. */ | |
4793 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
4794 | } | |
4795 | } | |
4796 | ||
4797 | /* Fill in the first three entries in the global offset table. */ | |
eea6121a | 4798 | if (sgot->size > 0) |
03a12831 AO |
4799 | { |
4800 | if (sdyn == NULL) | |
4801 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
4802 | else | |
4803 | bfd_put_32 (output_bfd, | |
4804 | sdyn->output_section->vma + sdyn->output_offset, | |
4805 | sgot->contents); | |
4806 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
4807 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
4808 | } | |
4809 | ||
4810 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
4811 | ||
4812 | return TRUE; | |
4813 | } | |
4814 | ||
a873f25a AO |
4815 | /* Classify relocation types, such that combreloc can sort them |
4816 | properly. */ | |
4817 | ||
4818 | static enum elf_reloc_type_class | |
4819 | _bfd_mn10300_elf_reloc_type_class (const Elf_Internal_Rela *rela) | |
4820 | { | |
4821 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4822 | { | |
4823 | case R_MN10300_RELATIVE: | |
4824 | return reloc_class_relative; | |
4825 | case R_MN10300_JMP_SLOT: | |
4826 | return reloc_class_plt; | |
4827 | case R_MN10300_COPY: | |
4828 | return reloc_class_copy; | |
4829 | default: | |
4830 | return reloc_class_normal; | |
4831 | } | |
4832 | } | |
4833 | ||
73c3cd1c | 4834 | #ifndef ELF_ARCH |
252b5132 RH |
4835 | #define TARGET_LITTLE_SYM bfd_elf32_mn10300_vec |
4836 | #define TARGET_LITTLE_NAME "elf32-mn10300" | |
4837 | #define ELF_ARCH bfd_arch_mn10300 | |
6f4514dc AO |
4838 | #define ELF_MACHINE_CODE EM_MN10300 |
4839 | #define ELF_MACHINE_ALT1 EM_CYGNUS_MN10300 | |
252b5132 | 4840 | #define ELF_MAXPAGESIZE 0x1000 |
73c3cd1c | 4841 | #endif |
252b5132 RH |
4842 | |
4843 | #define elf_info_to_howto mn10300_info_to_howto | |
4844 | #define elf_info_to_howto_rel 0 | |
4845 | #define elf_backend_can_gc_sections 1 | |
b491616a | 4846 | #define elf_backend_rela_normal 1 |
252b5132 RH |
4847 | #define elf_backend_check_relocs mn10300_elf_check_relocs |
4848 | #define elf_backend_gc_mark_hook mn10300_elf_gc_mark_hook | |
4849 | #define elf_backend_relocate_section mn10300_elf_relocate_section | |
4850 | #define bfd_elf32_bfd_relax_section mn10300_elf_relax_section | |
4851 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
4852 | mn10300_elf_get_relocated_section_contents | |
4853 | #define bfd_elf32_bfd_link_hash_table_create \ | |
4854 | elf32_mn10300_link_hash_table_create | |
e2d34d7d DJ |
4855 | #define bfd_elf32_bfd_link_hash_table_free \ |
4856 | elf32_mn10300_link_hash_table_free | |
252b5132 | 4857 | |
73c3cd1c | 4858 | #ifndef elf_symbol_leading_char |
252b5132 | 4859 | #define elf_symbol_leading_char '_' |
73c3cd1c | 4860 | #endif |
252b5132 RH |
4861 | |
4862 | /* So we can set bits in e_flags. */ | |
4863 | #define elf_backend_final_write_processing \ | |
4864 | _bfd_mn10300_elf_final_write_processing | |
4865 | #define elf_backend_object_p _bfd_mn10300_elf_object_p | |
4866 | ||
4867 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
4868 | _bfd_mn10300_elf_merge_private_bfd_data | |
4869 | ||
03a12831 AO |
4870 | #define elf_backend_can_gc_sections 1 |
4871 | #define elf_backend_create_dynamic_sections \ | |
4872 | _bfd_mn10300_elf_create_dynamic_sections | |
4873 | #define elf_backend_adjust_dynamic_symbol \ | |
4874 | _bfd_mn10300_elf_adjust_dynamic_symbol | |
4875 | #define elf_backend_size_dynamic_sections \ | |
4876 | _bfd_mn10300_elf_size_dynamic_sections | |
4877 | #define elf_backend_finish_dynamic_symbol \ | |
4878 | _bfd_mn10300_elf_finish_dynamic_symbol | |
4879 | #define elf_backend_finish_dynamic_sections \ | |
4880 | _bfd_mn10300_elf_finish_dynamic_sections | |
4881 | ||
a873f25a AO |
4882 | #define elf_backend_reloc_type_class \ |
4883 | _bfd_mn10300_elf_reloc_type_class | |
4884 | ||
03a12831 AO |
4885 | #define elf_backend_want_got_plt 1 |
4886 | #define elf_backend_plt_readonly 1 | |
4887 | #define elf_backend_want_plt_sym 0 | |
4888 | #define elf_backend_got_header_size 12 | |
03a12831 | 4889 | |
252b5132 | 4890 | #include "elf32-target.h" |