Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Matsushita 10300 specific support for 32-bit ELF |
66eb6687 | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
1d7e9d18 | 3 | 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. |
252b5132 | 4 | |
0112cd26 | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
0112cd26 NC |
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 | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
0112cd26 | 10 | (at your option) any later version. |
252b5132 | 11 | |
0112cd26 NC |
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. | |
252b5132 | 16 | |
0112cd26 NC |
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 | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
252b5132 | 21 | |
252b5132 | 22 | #include "sysdep.h" |
3db64b00 | 23 | #include "bfd.h" |
252b5132 RH |
24 | #include "libbfd.h" |
25 | #include "elf-bfd.h" | |
26 | #include "elf/mn10300.h" | |
603b7257 | 27 | #include "libiberty.h" |
917583ad | 28 | |
03a12831 AO |
29 | /* The mn10300 linker needs to keep track of the number of relocs that |
30 | it decides to copy in check_relocs for each symbol. This is so | |
31 | that it can discard PC relative relocs if it doesn't need them when | |
32 | linking with -Bsymbolic. We store the information in a field | |
33 | extending the regular ELF linker hash table. */ | |
34 | ||
603b7257 NC |
35 | struct elf32_mn10300_link_hash_entry |
36 | { | |
252b5132 RH |
37 | /* The basic elf link hash table entry. */ |
38 | struct elf_link_hash_entry root; | |
39 | ||
40 | /* For function symbols, the number of times this function is | |
41 | called directly (ie by name). */ | |
42 | unsigned int direct_calls; | |
43 | ||
44 | /* For function symbols, the size of this function's stack | |
45 | (if <= 255 bytes). We stuff this into "call" instructions | |
46 | to this target when it's valid and profitable to do so. | |
47 | ||
48 | This does not include stack allocated by movm! */ | |
49 | unsigned char stack_size; | |
50 | ||
51 | /* For function symbols, arguments (if any) for movm instruction | |
52 | in the prologue. We stuff this value into "call" instructions | |
53 | to the target when it's valid and profitable to do so. */ | |
54 | unsigned char movm_args; | |
55 | ||
4cc11e76 | 56 | /* For function symbols, the amount of stack space that would be allocated |
252b5132 RH |
57 | by the movm instruction. This is redundant with movm_args, but we |
58 | add it to the hash table to avoid computing it over and over. */ | |
59 | unsigned char movm_stack_size; | |
60 | ||
61 | /* When set, convert all "call" instructions to this target into "calls" | |
62 | instructions. */ | |
63 | #define MN10300_CONVERT_CALL_TO_CALLS 0x1 | |
64 | ||
65 | /* Used to mark functions which have had redundant parts of their | |
66 | prologue deleted. */ | |
67 | #define MN10300_DELETED_PROLOGUE_BYTES 0x2 | |
68 | unsigned char flags; | |
eb13e63f DD |
69 | |
70 | /* Calculated value. */ | |
71 | bfd_vma value; | |
0a22ae8e NC |
72 | |
73 | #define GOT_UNKNOWN 0 | |
74 | #define GOT_NORMAL 1 | |
75 | #define GOT_TLS_GD 2 | |
76 | #define GOT_TLS_LD 3 | |
77 | #define GOT_TLS_IE 4 | |
78 | /* Used to distinguish GOT entries for TLS types from normal GOT entries. */ | |
79 | unsigned char tls_type; | |
252b5132 RH |
80 | }; |
81 | ||
82 | /* We derive a hash table from the main elf linker hash table so | |
83 | we can store state variables and a secondary hash table without | |
84 | resorting to global variables. */ | |
603b7257 NC |
85 | struct elf32_mn10300_link_hash_table |
86 | { | |
252b5132 RH |
87 | /* The main hash table. */ |
88 | struct elf_link_hash_table root; | |
89 | ||
90 | /* A hash table for static functions. We could derive a new hash table | |
91 | instead of using the full elf32_mn10300_link_hash_table if we wanted | |
92 | to save some memory. */ | |
93 | struct elf32_mn10300_link_hash_table *static_hash_table; | |
94 | ||
95 | /* Random linker state flags. */ | |
96 | #define MN10300_HASH_ENTRIES_INITIALIZED 0x1 | |
97 | char flags; | |
0a22ae8e NC |
98 | struct |
99 | { | |
100 | bfd_signed_vma refcount; | |
101 | bfd_vma offset; | |
102 | char got_allocated; | |
103 | char rel_emitted; | |
104 | } tls_ldm_got; | |
252b5132 RH |
105 | }; |
106 | ||
0a22ae8e NC |
107 | #define elf_mn10300_hash_entry(ent) ((struct elf32_mn10300_link_hash_entry *)(ent)) |
108 | ||
109 | struct elf_mn10300_obj_tdata | |
110 | { | |
111 | struct elf_obj_tdata root; | |
112 | ||
113 | /* tls_type for each local got entry. */ | |
114 | char * local_got_tls_type; | |
115 | }; | |
116 | ||
117 | #define elf_mn10300_tdata(abfd) \ | |
118 | ((struct elf_mn10300_obj_tdata *) (abfd)->tdata.any) | |
119 | ||
120 | #define elf_mn10300_local_got_tls_type(abfd) \ | |
121 | (elf_mn10300_tdata (abfd)->local_got_tls_type) | |
122 | ||
603b7257 NC |
123 | #ifndef streq |
124 | #define streq(a, b) (strcmp ((a),(b)) == 0) | |
125 | #endif | |
126 | ||
252b5132 RH |
127 | /* For MN10300 linker hash table. */ |
128 | ||
129 | /* Get the MN10300 ELF linker hash table from a link_info structure. */ | |
130 | ||
131 | #define elf32_mn10300_hash_table(p) \ | |
4dfe6ac6 NC |
132 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
133 | == MN10300_ELF_DATA ? ((struct elf32_mn10300_link_hash_table *) ((p)->hash)) : NULL) | |
252b5132 RH |
134 | |
135 | #define elf32_mn10300_link_hash_traverse(table, func, info) \ | |
136 | (elf_link_hash_traverse \ | |
137 | (&(table)->root, \ | |
603b7257 | 138 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
252b5132 RH |
139 | (info))) |
140 | ||
603b7257 NC |
141 | static reloc_howto_type elf_mn10300_howto_table[] = |
142 | { | |
252b5132 RH |
143 | /* Dummy relocation. Does nothing. */ |
144 | HOWTO (R_MN10300_NONE, | |
145 | 0, | |
146 | 2, | |
147 | 16, | |
b34976b6 | 148 | FALSE, |
252b5132 RH |
149 | 0, |
150 | complain_overflow_bitfield, | |
151 | bfd_elf_generic_reloc, | |
152 | "R_MN10300_NONE", | |
b34976b6 | 153 | FALSE, |
252b5132 RH |
154 | 0, |
155 | 0, | |
b34976b6 | 156 | FALSE), |
252b5132 RH |
157 | /* Standard 32 bit reloc. */ |
158 | HOWTO (R_MN10300_32, | |
159 | 0, | |
160 | 2, | |
161 | 32, | |
b34976b6 | 162 | FALSE, |
252b5132 RH |
163 | 0, |
164 | complain_overflow_bitfield, | |
165 | bfd_elf_generic_reloc, | |
166 | "R_MN10300_32", | |
b34976b6 | 167 | FALSE, |
252b5132 RH |
168 | 0xffffffff, |
169 | 0xffffffff, | |
b34976b6 | 170 | FALSE), |
252b5132 RH |
171 | /* Standard 16 bit reloc. */ |
172 | HOWTO (R_MN10300_16, | |
173 | 0, | |
174 | 1, | |
175 | 16, | |
b34976b6 | 176 | FALSE, |
252b5132 RH |
177 | 0, |
178 | complain_overflow_bitfield, | |
179 | bfd_elf_generic_reloc, | |
180 | "R_MN10300_16", | |
b34976b6 | 181 | FALSE, |
252b5132 RH |
182 | 0xffff, |
183 | 0xffff, | |
b34976b6 | 184 | FALSE), |
252b5132 RH |
185 | /* Standard 8 bit reloc. */ |
186 | HOWTO (R_MN10300_8, | |
187 | 0, | |
188 | 0, | |
189 | 8, | |
b34976b6 | 190 | FALSE, |
252b5132 RH |
191 | 0, |
192 | complain_overflow_bitfield, | |
193 | bfd_elf_generic_reloc, | |
194 | "R_MN10300_8", | |
b34976b6 | 195 | FALSE, |
252b5132 RH |
196 | 0xff, |
197 | 0xff, | |
b34976b6 | 198 | FALSE), |
252b5132 RH |
199 | /* Standard 32bit pc-relative reloc. */ |
200 | HOWTO (R_MN10300_PCREL32, | |
201 | 0, | |
202 | 2, | |
203 | 32, | |
b34976b6 | 204 | TRUE, |
252b5132 RH |
205 | 0, |
206 | complain_overflow_bitfield, | |
207 | bfd_elf_generic_reloc, | |
208 | "R_MN10300_PCREL32", | |
b34976b6 | 209 | FALSE, |
252b5132 RH |
210 | 0xffffffff, |
211 | 0xffffffff, | |
b34976b6 | 212 | TRUE), |
252b5132 RH |
213 | /* Standard 16bit pc-relative reloc. */ |
214 | HOWTO (R_MN10300_PCREL16, | |
215 | 0, | |
216 | 1, | |
217 | 16, | |
b34976b6 | 218 | TRUE, |
252b5132 RH |
219 | 0, |
220 | complain_overflow_bitfield, | |
221 | bfd_elf_generic_reloc, | |
222 | "R_MN10300_PCREL16", | |
b34976b6 | 223 | FALSE, |
252b5132 RH |
224 | 0xffff, |
225 | 0xffff, | |
b34976b6 | 226 | TRUE), |
252b5132 RH |
227 | /* Standard 8 pc-relative reloc. */ |
228 | HOWTO (R_MN10300_PCREL8, | |
229 | 0, | |
230 | 0, | |
231 | 8, | |
b34976b6 | 232 | TRUE, |
252b5132 RH |
233 | 0, |
234 | complain_overflow_bitfield, | |
235 | bfd_elf_generic_reloc, | |
236 | "R_MN10300_PCREL8", | |
b34976b6 | 237 | FALSE, |
252b5132 RH |
238 | 0xff, |
239 | 0xff, | |
b34976b6 | 240 | TRUE), |
252b5132 | 241 | |
603b7257 | 242 | /* GNU extension to record C++ vtable hierarchy. */ |
252b5132 RH |
243 | HOWTO (R_MN10300_GNU_VTINHERIT, /* type */ |
244 | 0, /* rightshift */ | |
245 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
246 | 0, /* bitsize */ | |
b34976b6 | 247 | FALSE, /* pc_relative */ |
252b5132 RH |
248 | 0, /* bitpos */ |
249 | complain_overflow_dont, /* complain_on_overflow */ | |
250 | NULL, /* special_function */ | |
251 | "R_MN10300_GNU_VTINHERIT", /* name */ | |
b34976b6 | 252 | FALSE, /* partial_inplace */ |
252b5132 RH |
253 | 0, /* src_mask */ |
254 | 0, /* dst_mask */ | |
b34976b6 | 255 | FALSE), /* pcrel_offset */ |
252b5132 RH |
256 | |
257 | /* GNU extension to record C++ vtable member usage */ | |
258 | HOWTO (R_MN10300_GNU_VTENTRY, /* type */ | |
259 | 0, /* rightshift */ | |
260 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
261 | 0, /* bitsize */ | |
b34976b6 | 262 | FALSE, /* pc_relative */ |
252b5132 RH |
263 | 0, /* bitpos */ |
264 | complain_overflow_dont, /* complain_on_overflow */ | |
265 | NULL, /* special_function */ | |
266 | "R_MN10300_GNU_VTENTRY", /* name */ | |
b34976b6 | 267 | FALSE, /* partial_inplace */ |
252b5132 RH |
268 | 0, /* src_mask */ |
269 | 0, /* dst_mask */ | |
b34976b6 | 270 | FALSE), /* pcrel_offset */ |
252b5132 RH |
271 | |
272 | /* Standard 24 bit reloc. */ | |
273 | HOWTO (R_MN10300_24, | |
274 | 0, | |
275 | 2, | |
276 | 24, | |
b34976b6 | 277 | FALSE, |
252b5132 RH |
278 | 0, |
279 | complain_overflow_bitfield, | |
280 | bfd_elf_generic_reloc, | |
281 | "R_MN10300_24", | |
b34976b6 | 282 | FALSE, |
252b5132 RH |
283 | 0xffffff, |
284 | 0xffffff, | |
b34976b6 | 285 | FALSE), |
03a12831 AO |
286 | HOWTO (R_MN10300_GOTPC32, /* type */ |
287 | 0, /* rightshift */ | |
288 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
289 | 32, /* bitsize */ | |
290 | TRUE, /* pc_relative */ | |
291 | 0, /* bitpos */ | |
292 | complain_overflow_bitfield, /* complain_on_overflow */ | |
293 | bfd_elf_generic_reloc, /* */ | |
294 | "R_MN10300_GOTPC32", /* name */ | |
295 | FALSE, /* partial_inplace */ | |
296 | 0xffffffff, /* src_mask */ | |
297 | 0xffffffff, /* dst_mask */ | |
298 | TRUE), /* pcrel_offset */ | |
299 | ||
300 | HOWTO (R_MN10300_GOTPC16, /* type */ | |
301 | 0, /* rightshift */ | |
302 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
303 | 16, /* bitsize */ | |
304 | TRUE, /* pc_relative */ | |
305 | 0, /* bitpos */ | |
306 | complain_overflow_bitfield, /* complain_on_overflow */ | |
307 | bfd_elf_generic_reloc, /* */ | |
308 | "R_MN10300_GOTPC16", /* name */ | |
309 | FALSE, /* partial_inplace */ | |
310 | 0xffff, /* src_mask */ | |
311 | 0xffff, /* dst_mask */ | |
312 | TRUE), /* pcrel_offset */ | |
313 | ||
314 | HOWTO (R_MN10300_GOTOFF32, /* type */ | |
315 | 0, /* rightshift */ | |
316 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
317 | 32, /* bitsize */ | |
318 | FALSE, /* pc_relative */ | |
319 | 0, /* bitpos */ | |
320 | complain_overflow_bitfield, /* complain_on_overflow */ | |
321 | bfd_elf_generic_reloc, /* */ | |
322 | "R_MN10300_GOTOFF32", /* name */ | |
323 | FALSE, /* partial_inplace */ | |
324 | 0xffffffff, /* src_mask */ | |
325 | 0xffffffff, /* dst_mask */ | |
326 | FALSE), /* pcrel_offset */ | |
327 | ||
328 | HOWTO (R_MN10300_GOTOFF24, /* type */ | |
329 | 0, /* rightshift */ | |
330 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
331 | 24, /* bitsize */ | |
332 | FALSE, /* pc_relative */ | |
333 | 0, /* bitpos */ | |
334 | complain_overflow_bitfield, /* complain_on_overflow */ | |
335 | bfd_elf_generic_reloc, /* */ | |
336 | "R_MN10300_GOTOFF24", /* name */ | |
337 | FALSE, /* partial_inplace */ | |
338 | 0xffffff, /* src_mask */ | |
339 | 0xffffff, /* dst_mask */ | |
340 | FALSE), /* pcrel_offset */ | |
341 | ||
342 | HOWTO (R_MN10300_GOTOFF16, /* type */ | |
343 | 0, /* rightshift */ | |
344 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
345 | 16, /* bitsize */ | |
346 | FALSE, /* pc_relative */ | |
347 | 0, /* bitpos */ | |
348 | complain_overflow_bitfield, /* complain_on_overflow */ | |
349 | bfd_elf_generic_reloc, /* */ | |
350 | "R_MN10300_GOTOFF16", /* name */ | |
351 | FALSE, /* partial_inplace */ | |
352 | 0xffff, /* src_mask */ | |
353 | 0xffff, /* dst_mask */ | |
354 | FALSE), /* pcrel_offset */ | |
355 | ||
356 | HOWTO (R_MN10300_PLT32, /* type */ | |
357 | 0, /* rightshift */ | |
358 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
359 | 32, /* bitsize */ | |
360 | TRUE, /* pc_relative */ | |
361 | 0, /* bitpos */ | |
362 | complain_overflow_bitfield, /* complain_on_overflow */ | |
363 | bfd_elf_generic_reloc, /* */ | |
364 | "R_MN10300_PLT32", /* name */ | |
365 | FALSE, /* partial_inplace */ | |
366 | 0xffffffff, /* src_mask */ | |
367 | 0xffffffff, /* dst_mask */ | |
368 | TRUE), /* pcrel_offset */ | |
369 | ||
370 | HOWTO (R_MN10300_PLT16, /* type */ | |
371 | 0, /* rightshift */ | |
372 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
373 | 16, /* bitsize */ | |
374 | TRUE, /* pc_relative */ | |
375 | 0, /* bitpos */ | |
376 | complain_overflow_bitfield, /* complain_on_overflow */ | |
377 | bfd_elf_generic_reloc, /* */ | |
378 | "R_MN10300_PLT16", /* name */ | |
379 | FALSE, /* partial_inplace */ | |
380 | 0xffff, /* src_mask */ | |
381 | 0xffff, /* dst_mask */ | |
382 | TRUE), /* pcrel_offset */ | |
383 | ||
384 | HOWTO (R_MN10300_GOT32, /* type */ | |
385 | 0, /* rightshift */ | |
386 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
387 | 32, /* bitsize */ | |
388 | FALSE, /* pc_relative */ | |
389 | 0, /* bitpos */ | |
390 | complain_overflow_bitfield, /* complain_on_overflow */ | |
391 | bfd_elf_generic_reloc, /* */ | |
392 | "R_MN10300_GOT32", /* name */ | |
393 | FALSE, /* partial_inplace */ | |
394 | 0xffffffff, /* src_mask */ | |
395 | 0xffffffff, /* dst_mask */ | |
396 | FALSE), /* pcrel_offset */ | |
397 | ||
398 | HOWTO (R_MN10300_GOT24, /* type */ | |
399 | 0, /* rightshift */ | |
400 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
401 | 24, /* bitsize */ | |
402 | FALSE, /* pc_relative */ | |
403 | 0, /* bitpos */ | |
404 | complain_overflow_bitfield, /* complain_on_overflow */ | |
405 | bfd_elf_generic_reloc, /* */ | |
406 | "R_MN10300_GOT24", /* name */ | |
407 | FALSE, /* partial_inplace */ | |
408 | 0xffffffff, /* src_mask */ | |
409 | 0xffffffff, /* dst_mask */ | |
410 | FALSE), /* pcrel_offset */ | |
411 | ||
412 | HOWTO (R_MN10300_GOT16, /* type */ | |
413 | 0, /* rightshift */ | |
414 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
415 | 16, /* bitsize */ | |
416 | FALSE, /* pc_relative */ | |
417 | 0, /* bitpos */ | |
418 | complain_overflow_bitfield, /* complain_on_overflow */ | |
419 | bfd_elf_generic_reloc, /* */ | |
420 | "R_MN10300_GOT16", /* name */ | |
421 | FALSE, /* partial_inplace */ | |
422 | 0xffffffff, /* src_mask */ | |
423 | 0xffffffff, /* dst_mask */ | |
424 | FALSE), /* pcrel_offset */ | |
425 | ||
426 | HOWTO (R_MN10300_COPY, /* type */ | |
427 | 0, /* rightshift */ | |
428 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
429 | 32, /* bitsize */ | |
430 | FALSE, /* pc_relative */ | |
431 | 0, /* bitpos */ | |
432 | complain_overflow_bitfield, /* complain_on_overflow */ | |
433 | bfd_elf_generic_reloc, /* */ | |
434 | "R_MN10300_COPY", /* name */ | |
435 | FALSE, /* partial_inplace */ | |
436 | 0xffffffff, /* src_mask */ | |
437 | 0xffffffff, /* dst_mask */ | |
438 | FALSE), /* pcrel_offset */ | |
439 | ||
440 | HOWTO (R_MN10300_GLOB_DAT, /* type */ | |
441 | 0, /* rightshift */ | |
442 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
443 | 32, /* bitsize */ | |
444 | FALSE, /* pc_relative */ | |
445 | 0, /* bitpos */ | |
446 | complain_overflow_bitfield, /* complain_on_overflow */ | |
447 | bfd_elf_generic_reloc, /* */ | |
448 | "R_MN10300_GLOB_DAT", /* name */ | |
449 | FALSE, /* partial_inplace */ | |
450 | 0xffffffff, /* src_mask */ | |
451 | 0xffffffff, /* dst_mask */ | |
452 | FALSE), /* pcrel_offset */ | |
453 | ||
454 | HOWTO (R_MN10300_JMP_SLOT, /* type */ | |
455 | 0, /* rightshift */ | |
456 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
457 | 32, /* bitsize */ | |
458 | FALSE, /* pc_relative */ | |
459 | 0, /* bitpos */ | |
460 | complain_overflow_bitfield, /* complain_on_overflow */ | |
461 | bfd_elf_generic_reloc, /* */ | |
462 | "R_MN10300_JMP_SLOT", /* name */ | |
463 | FALSE, /* partial_inplace */ | |
464 | 0xffffffff, /* src_mask */ | |
465 | 0xffffffff, /* dst_mask */ | |
466 | FALSE), /* pcrel_offset */ | |
467 | ||
468 | HOWTO (R_MN10300_RELATIVE, /* type */ | |
469 | 0, /* rightshift */ | |
470 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
471 | 32, /* bitsize */ | |
472 | FALSE, /* pc_relative */ | |
473 | 0, /* bitpos */ | |
474 | complain_overflow_bitfield, /* complain_on_overflow */ | |
475 | bfd_elf_generic_reloc, /* */ | |
476 | "R_MN10300_RELATIVE", /* name */ | |
477 | FALSE, /* partial_inplace */ | |
478 | 0xffffffff, /* src_mask */ | |
479 | 0xffffffff, /* dst_mask */ | |
480 | FALSE), /* pcrel_offset */ | |
bfff1642 | 481 | |
0a22ae8e NC |
482 | HOWTO (R_MN10300_TLS_GD, /* type */ |
483 | 0, /* rightshift */ | |
484 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
485 | 32, /* bitsize */ | |
486 | FALSE, /* pc_relative */ | |
487 | 0, /* bitpos */ | |
488 | complain_overflow_bitfield, /* complain_on_overflow */ | |
489 | bfd_elf_generic_reloc, /* */ | |
490 | "R_MN10300_TLS_GD", /* name */ | |
491 | FALSE, /* partial_inplace */ | |
492 | 0xffffffff, /* src_mask */ | |
493 | 0xffffffff, /* dst_mask */ | |
494 | FALSE), /* pcrel_offset */ | |
495 | ||
496 | HOWTO (R_MN10300_TLS_LD, /* type */ | |
497 | 0, /* rightshift */ | |
498 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
499 | 32, /* bitsize */ | |
500 | FALSE, /* pc_relative */ | |
501 | 0, /* bitpos */ | |
502 | complain_overflow_bitfield, /* complain_on_overflow */ | |
503 | bfd_elf_generic_reloc, /* */ | |
504 | "R_MN10300_TLS_LD", /* name */ | |
505 | FALSE, /* partial_inplace */ | |
506 | 0xffffffff, /* src_mask */ | |
507 | 0xffffffff, /* dst_mask */ | |
508 | FALSE), /* pcrel_offset */ | |
509 | ||
510 | HOWTO (R_MN10300_TLS_LDO, /* type */ | |
511 | 0, /* rightshift */ | |
512 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
513 | 32, /* bitsize */ | |
514 | FALSE, /* pc_relative */ | |
515 | 0, /* bitpos */ | |
516 | complain_overflow_bitfield, /* complain_on_overflow */ | |
517 | bfd_elf_generic_reloc, /* */ | |
518 | "R_MN10300_TLS_LDO", /* name */ | |
519 | FALSE, /* partial_inplace */ | |
520 | 0xffffffff, /* src_mask */ | |
521 | 0xffffffff, /* dst_mask */ | |
522 | FALSE), /* pcrel_offset */ | |
523 | ||
524 | HOWTO (R_MN10300_TLS_GOTIE, /* type */ | |
525 | 0, /* rightshift */ | |
526 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
527 | 32, /* bitsize */ | |
528 | FALSE, /* pc_relative */ | |
529 | 0, /* bitpos */ | |
530 | complain_overflow_bitfield, /* complain_on_overflow */ | |
531 | bfd_elf_generic_reloc, /* */ | |
532 | "R_MN10300_TLS_GOTIE", /* name */ | |
533 | FALSE, /* partial_inplace */ | |
534 | 0xffffffff, /* src_mask */ | |
535 | 0xffffffff, /* dst_mask */ | |
536 | FALSE), /* pcrel_offset */ | |
537 | ||
538 | HOWTO (R_MN10300_TLS_IE, /* type */ | |
539 | 0, /* rightshift */ | |
540 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
541 | 32, /* bitsize */ | |
542 | FALSE, /* pc_relative */ | |
543 | 0, /* bitpos */ | |
544 | complain_overflow_bitfield, /* complain_on_overflow */ | |
545 | bfd_elf_generic_reloc, /* */ | |
546 | "R_MN10300_TLS_IE", /* name */ | |
547 | FALSE, /* partial_inplace */ | |
548 | 0xffffffff, /* src_mask */ | |
549 | 0xffffffff, /* dst_mask */ | |
550 | FALSE), /* pcrel_offset */ | |
551 | ||
552 | HOWTO (R_MN10300_TLS_LE, /* type */ | |
553 | 0, /* rightshift */ | |
554 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
555 | 32, /* bitsize */ | |
556 | FALSE, /* pc_relative */ | |
557 | 0, /* bitpos */ | |
558 | complain_overflow_bitfield, /* complain_on_overflow */ | |
559 | bfd_elf_generic_reloc, /* */ | |
560 | "R_MN10300_TLS_LE", /* name */ | |
561 | FALSE, /* partial_inplace */ | |
562 | 0xffffffff, /* src_mask */ | |
563 | 0xffffffff, /* dst_mask */ | |
564 | FALSE), /* pcrel_offset */ | |
565 | ||
566 | HOWTO (R_MN10300_TLS_DTPMOD, /* type */ | |
567 | 0, /* rightshift */ | |
568 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
569 | 32, /* bitsize */ | |
570 | FALSE, /* pc_relative */ | |
571 | 0, /* bitpos */ | |
572 | complain_overflow_bitfield, /* complain_on_overflow */ | |
573 | bfd_elf_generic_reloc, /* */ | |
574 | "R_MN10300_TLS_DTPMOD", /* name */ | |
575 | FALSE, /* partial_inplace */ | |
576 | 0xffffffff, /* src_mask */ | |
577 | 0xffffffff, /* dst_mask */ | |
578 | FALSE), /* pcrel_offset */ | |
579 | ||
580 | HOWTO (R_MN10300_TLS_DTPOFF, /* type */ | |
581 | 0, /* rightshift */ | |
582 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
583 | 32, /* bitsize */ | |
584 | FALSE, /* pc_relative */ | |
585 | 0, /* bitpos */ | |
586 | complain_overflow_bitfield, /* complain_on_overflow */ | |
587 | bfd_elf_generic_reloc, /* */ | |
588 | "R_MN10300_TLS_DTPOFF", /* name */ | |
589 | FALSE, /* partial_inplace */ | |
590 | 0xffffffff, /* src_mask */ | |
591 | 0xffffffff, /* dst_mask */ | |
592 | FALSE), /* pcrel_offset */ | |
593 | ||
594 | HOWTO (R_MN10300_TLS_TPOFF, /* type */ | |
595 | 0, /* rightshift */ | |
596 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
597 | 32, /* bitsize */ | |
598 | FALSE, /* pc_relative */ | |
599 | 0, /* bitpos */ | |
600 | complain_overflow_bitfield, /* complain_on_overflow */ | |
601 | bfd_elf_generic_reloc, /* */ | |
602 | "R_MN10300_TLS_TPOFF", /* name */ | |
603 | FALSE, /* partial_inplace */ | |
604 | 0xffffffff, /* src_mask */ | |
605 | 0xffffffff, /* dst_mask */ | |
606 | FALSE), /* pcrel_offset */ | |
68ffbac6 | 607 | |
bfff1642 NC |
608 | HOWTO (R_MN10300_SYM_DIFF, /* type */ |
609 | 0, /* rightshift */ | |
610 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
611 | 32, /* bitsize */ | |
612 | FALSE, /* pc_relative */ | |
613 | 0, /* bitpos */ | |
614 | complain_overflow_dont,/* complain_on_overflow */ | |
615 | NULL, /* special handler. */ | |
616 | "R_MN10300_SYM_DIFF", /* name */ | |
617 | FALSE, /* partial_inplace */ | |
618 | 0xffffffff, /* src_mask */ | |
619 | 0xffffffff, /* dst_mask */ | |
569006e5 NC |
620 | FALSE), /* pcrel_offset */ |
621 | ||
622 | HOWTO (R_MN10300_ALIGN, /* type */ | |
623 | 0, /* rightshift */ | |
624 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
625 | 32, /* bitsize */ | |
626 | FALSE, /* pc_relative */ | |
627 | 0, /* bitpos */ | |
628 | complain_overflow_dont,/* complain_on_overflow */ | |
629 | NULL, /* special handler. */ | |
630 | "R_MN10300_ALIGN", /* name */ | |
631 | FALSE, /* partial_inplace */ | |
632 | 0, /* src_mask */ | |
633 | 0, /* dst_mask */ | |
bfff1642 | 634 | FALSE) /* pcrel_offset */ |
252b5132 RH |
635 | }; |
636 | ||
603b7257 NC |
637 | struct mn10300_reloc_map |
638 | { | |
252b5132 RH |
639 | bfd_reloc_code_real_type bfd_reloc_val; |
640 | unsigned char elf_reloc_val; | |
641 | }; | |
642 | ||
603b7257 NC |
643 | static const struct mn10300_reloc_map mn10300_reloc_map[] = |
644 | { | |
252b5132 RH |
645 | { BFD_RELOC_NONE, R_MN10300_NONE, }, |
646 | { BFD_RELOC_32, R_MN10300_32, }, | |
647 | { BFD_RELOC_16, R_MN10300_16, }, | |
648 | { BFD_RELOC_8, R_MN10300_8, }, | |
649 | { BFD_RELOC_32_PCREL, R_MN10300_PCREL32, }, | |
650 | { BFD_RELOC_16_PCREL, R_MN10300_PCREL16, }, | |
651 | { BFD_RELOC_8_PCREL, R_MN10300_PCREL8, }, | |
652 | { BFD_RELOC_24, R_MN10300_24, }, | |
653 | { BFD_RELOC_VTABLE_INHERIT, R_MN10300_GNU_VTINHERIT }, | |
654 | { BFD_RELOC_VTABLE_ENTRY, R_MN10300_GNU_VTENTRY }, | |
03a12831 AO |
655 | { BFD_RELOC_32_GOT_PCREL, R_MN10300_GOTPC32 }, |
656 | { BFD_RELOC_16_GOT_PCREL, R_MN10300_GOTPC16 }, | |
657 | { BFD_RELOC_32_GOTOFF, R_MN10300_GOTOFF32 }, | |
658 | { BFD_RELOC_MN10300_GOTOFF24, R_MN10300_GOTOFF24 }, | |
659 | { BFD_RELOC_16_GOTOFF, R_MN10300_GOTOFF16 }, | |
660 | { BFD_RELOC_32_PLT_PCREL, R_MN10300_PLT32 }, | |
661 | { BFD_RELOC_16_PLT_PCREL, R_MN10300_PLT16 }, | |
662 | { BFD_RELOC_MN10300_GOT32, R_MN10300_GOT32 }, | |
663 | { BFD_RELOC_MN10300_GOT24, R_MN10300_GOT24 }, | |
664 | { BFD_RELOC_MN10300_GOT16, R_MN10300_GOT16 }, | |
665 | { BFD_RELOC_MN10300_COPY, R_MN10300_COPY }, | |
666 | { BFD_RELOC_MN10300_GLOB_DAT, R_MN10300_GLOB_DAT }, | |
667 | { BFD_RELOC_MN10300_JMP_SLOT, R_MN10300_JMP_SLOT }, | |
668 | { BFD_RELOC_MN10300_RELATIVE, R_MN10300_RELATIVE }, | |
0a22ae8e NC |
669 | { BFD_RELOC_MN10300_TLS_GD, R_MN10300_TLS_GD }, |
670 | { BFD_RELOC_MN10300_TLS_LD, R_MN10300_TLS_LD }, | |
671 | { BFD_RELOC_MN10300_TLS_LDO, R_MN10300_TLS_LDO }, | |
672 | { BFD_RELOC_MN10300_TLS_GOTIE, R_MN10300_TLS_GOTIE }, | |
673 | { BFD_RELOC_MN10300_TLS_IE, R_MN10300_TLS_IE }, | |
674 | { BFD_RELOC_MN10300_TLS_LE, R_MN10300_TLS_LE }, | |
675 | { BFD_RELOC_MN10300_TLS_DTPMOD, R_MN10300_TLS_DTPMOD }, | |
676 | { BFD_RELOC_MN10300_TLS_DTPOFF, R_MN10300_TLS_DTPOFF }, | |
677 | { BFD_RELOC_MN10300_TLS_TPOFF, R_MN10300_TLS_TPOFF }, | |
569006e5 NC |
678 | { BFD_RELOC_MN10300_SYM_DIFF, R_MN10300_SYM_DIFF }, |
679 | { BFD_RELOC_MN10300_ALIGN, R_MN10300_ALIGN } | |
252b5132 RH |
680 | }; |
681 | ||
03a12831 AO |
682 | /* Create the GOT section. */ |
683 | ||
684 | static bfd_boolean | |
603b7257 NC |
685 | _bfd_mn10300_elf_create_got_section (bfd * abfd, |
686 | struct bfd_link_info * info) | |
03a12831 AO |
687 | { |
688 | flagword flags; | |
689 | flagword pltflags; | |
690 | asection * s; | |
691 | struct elf_link_hash_entry * h; | |
9c5bfbb7 | 692 | const struct elf_backend_data * bed = get_elf_backend_data (abfd); |
3d4d4302 | 693 | struct elf_link_hash_table *htab; |
03a12831 AO |
694 | int ptralign; |
695 | ||
696 | /* This function may be called more than once. */ | |
3d4d4302 AM |
697 | htab = elf_hash_table (info); |
698 | if (htab->sgot != NULL) | |
03a12831 AO |
699 | return TRUE; |
700 | ||
701 | switch (bed->s->arch_size) | |
702 | { | |
703 | case 32: | |
704 | ptralign = 2; | |
705 | break; | |
706 | ||
707 | case 64: | |
708 | ptralign = 3; | |
709 | break; | |
710 | ||
711 | default: | |
712 | bfd_set_error (bfd_error_bad_value); | |
713 | return FALSE; | |
714 | } | |
715 | ||
716 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
717 | | SEC_LINKER_CREATED); | |
718 | ||
719 | pltflags = flags; | |
720 | pltflags |= SEC_CODE; | |
721 | if (bed->plt_not_loaded) | |
722 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
723 | if (bed->plt_readonly) | |
724 | pltflags |= SEC_READONLY; | |
725 | ||
3d4d4302 AM |
726 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags); |
727 | htab->splt = s; | |
03a12831 | 728 | if (s == NULL |
03a12831 AO |
729 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) |
730 | return FALSE; | |
731 | ||
d98685ac AM |
732 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the |
733 | .plt section. */ | |
7325306f RS |
734 | if (bed->want_plt_sym) |
735 | { | |
736 | h = _bfd_elf_define_linkage_sym (abfd, info, s, | |
737 | "_PROCEDURE_LINKAGE_TABLE_"); | |
3d4d4302 | 738 | htab->hplt = h; |
7325306f RS |
739 | if (h == NULL) |
740 | return FALSE; | |
741 | } | |
03a12831 | 742 | |
3d4d4302 AM |
743 | s = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
744 | htab->sgot = s; | |
03a12831 | 745 | if (s == NULL |
03a12831 AO |
746 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
747 | return FALSE; | |
748 | ||
749 | if (bed->want_got_plt) | |
750 | { | |
3d4d4302 AM |
751 | s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); |
752 | htab->sgotplt = s; | |
03a12831 | 753 | if (s == NULL |
03a12831 AO |
754 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
755 | return FALSE; | |
756 | } | |
757 | ||
758 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
759 | (or .got.plt) section. We don't do this in the linker script | |
760 | because we don't want to define the symbol if we are not creating | |
761 | a global offset table. */ | |
d98685ac | 762 | h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_"); |
3d4d4302 | 763 | htab->hgot = h; |
d98685ac AM |
764 | if (h == NULL) |
765 | return FALSE; | |
03a12831 AO |
766 | |
767 | /* The first bit of the global offset table is the header. */ | |
3b36f7e6 | 768 | s->size += bed->got_header_size; |
03a12831 AO |
769 | |
770 | return TRUE; | |
771 | } | |
772 | ||
252b5132 | 773 | static reloc_howto_type * |
603b7257 NC |
774 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
775 | bfd_reloc_code_real_type code) | |
252b5132 RH |
776 | { |
777 | unsigned int i; | |
778 | ||
603b7257 NC |
779 | for (i = ARRAY_SIZE (mn10300_reloc_map); i--;) |
780 | if (mn10300_reloc_map[i].bfd_reloc_val == code) | |
781 | return &elf_mn10300_howto_table[mn10300_reloc_map[i].elf_reloc_val]; | |
252b5132 RH |
782 | |
783 | return NULL; | |
784 | } | |
785 | ||
157090f7 AM |
786 | static reloc_howto_type * |
787 | bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
788 | const char *r_name) | |
789 | { | |
790 | unsigned int i; | |
791 | ||
603b7257 | 792 | for (i = ARRAY_SIZE (elf_mn10300_howto_table); i--;) |
157090f7 AM |
793 | if (elf_mn10300_howto_table[i].name != NULL |
794 | && strcasecmp (elf_mn10300_howto_table[i].name, r_name) == 0) | |
603b7257 | 795 | return elf_mn10300_howto_table + i; |
157090f7 AM |
796 | |
797 | return NULL; | |
798 | } | |
799 | ||
252b5132 RH |
800 | /* Set the howto pointer for an MN10300 ELF reloc. */ |
801 | ||
802 | static void | |
603b7257 NC |
803 | mn10300_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
804 | arelent *cache_ptr, | |
805 | Elf_Internal_Rela *dst) | |
252b5132 RH |
806 | { |
807 | unsigned int r_type; | |
808 | ||
809 | r_type = ELF32_R_TYPE (dst->r_info); | |
810 | BFD_ASSERT (r_type < (unsigned int) R_MN10300_MAX); | |
603b7257 | 811 | cache_ptr->howto = elf_mn10300_howto_table + r_type; |
252b5132 RH |
812 | } |
813 | ||
0a22ae8e NC |
814 | static int |
815 | elf_mn10300_tls_transition (struct bfd_link_info * info, | |
816 | int r_type, | |
817 | struct elf_link_hash_entry * h, | |
818 | asection * sec, | |
819 | bfd_boolean counting) | |
820 | { | |
821 | bfd_boolean is_local; | |
822 | ||
823 | if (r_type == R_MN10300_TLS_GD | |
824 | && h != NULL | |
825 | && elf_mn10300_hash_entry (h)->tls_type == GOT_TLS_IE) | |
826 | return R_MN10300_TLS_GOTIE; | |
827 | ||
828 | if (info->shared) | |
829 | return r_type; | |
830 | ||
831 | if (! (sec->flags & SEC_CODE)) | |
832 | return r_type; | |
833 | ||
834 | if (! counting && h != NULL && ! elf_hash_table (info)->dynamic_sections_created) | |
835 | is_local = TRUE; | |
836 | else | |
837 | is_local = SYMBOL_CALLS_LOCAL (info, h); | |
838 | ||
839 | /* For the main program, these are the transitions we do. */ | |
840 | switch (r_type) | |
841 | { | |
842 | case R_MN10300_TLS_GD: return is_local ? R_MN10300_TLS_LE : R_MN10300_TLS_GOTIE; | |
843 | case R_MN10300_TLS_LD: return R_MN10300_NONE; | |
844 | case R_MN10300_TLS_LDO: return R_MN10300_TLS_LE; | |
845 | case R_MN10300_TLS_IE: | |
846 | case R_MN10300_TLS_GOTIE: return is_local ? R_MN10300_TLS_LE : r_type; | |
847 | } | |
848 | ||
849 | return r_type; | |
850 | } | |
851 | ||
852 | /* Return the relocation value for @tpoff relocation | |
853 | if STT_TLS virtual address is ADDRESS. */ | |
854 | ||
855 | static bfd_vma | |
856 | dtpoff (struct bfd_link_info * info, bfd_vma address) | |
857 | { | |
858 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
859 | ||
860 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
861 | if (htab->tls_sec == NULL) | |
862 | return 0; | |
863 | return address - htab->tls_sec->vma; | |
864 | } | |
865 | ||
866 | /* Return the relocation value for @tpoff relocation | |
867 | if STT_TLS virtual address is ADDRESS. */ | |
868 | ||
869 | static bfd_vma | |
870 | tpoff (struct bfd_link_info * info, bfd_vma address) | |
871 | { | |
872 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
873 | ||
874 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
875 | if (htab->tls_sec == NULL) | |
876 | return 0; | |
877 | return address - (htab->tls_size + htab->tls_sec->vma); | |
878 | } | |
879 | ||
880 | /* Returns nonzero if there's a R_MN10300_PLT32 reloc that we now need | |
881 | to skip, after this one. The actual value is the offset between | |
882 | this reloc and the PLT reloc. */ | |
883 | ||
884 | static int | |
885 | mn10300_do_tls_transition (bfd * input_bfd, | |
886 | unsigned int r_type, | |
887 | unsigned int tls_r_type, | |
888 | bfd_byte * contents, | |
889 | bfd_vma offset) | |
890 | { | |
891 | bfd_byte *op = contents + offset; | |
892 | int gotreg = 0; | |
893 | ||
894 | #define TLS_PAIR(r1,r2) ((r1) * R_MN10300_MAX + (r2)) | |
895 | ||
896 | /* This is common to all GD/LD transitions, so break it out. */ | |
897 | if (r_type == R_MN10300_TLS_GD | |
898 | || r_type == R_MN10300_TLS_LD) | |
899 | { | |
900 | op -= 2; | |
901 | /* mov imm,d0. */ | |
902 | BFD_ASSERT (bfd_get_8 (input_bfd, op) == 0xFC); | |
903 | BFD_ASSERT (bfd_get_8 (input_bfd, op + 1) == 0xCC); | |
904 | /* add aN,d0. */ | |
905 | BFD_ASSERT (bfd_get_8 (input_bfd, op + 6) == 0xF1); | |
906 | gotreg = (bfd_get_8 (input_bfd, op + 7) & 0x0c) >> 2; | |
907 | /* Call. */ | |
908 | BFD_ASSERT (bfd_get_8 (input_bfd, op + 8) == 0xDD); | |
909 | } | |
910 | ||
911 | switch (TLS_PAIR (r_type, tls_r_type)) | |
912 | { | |
913 | case TLS_PAIR (R_MN10300_TLS_GD, R_MN10300_TLS_GOTIE): | |
914 | { | |
915 | /* Keep track of which register we put GOTptr in. */ | |
916 | /* mov (_x@indntpoff,a2),a0. */ | |
917 | memcpy (op, "\xFC\x20\x00\x00\x00\x00", 6); | |
918 | op[1] |= gotreg; | |
919 | /* add e2,a0. */ | |
920 | memcpy (op+6, "\xF9\x78\x28", 3); | |
921 | /* or 0x00000000, d0 - six byte nop. */ | |
922 | memcpy (op+9, "\xFC\xE4\x00\x00\x00\x00", 6); | |
923 | } | |
924 | return 7; | |
925 | ||
926 | case TLS_PAIR (R_MN10300_TLS_GD, R_MN10300_TLS_LE): | |
927 | { | |
928 | /* Register is *always* a0. */ | |
929 | /* mov _x@tpoff,a0. */ | |
930 | memcpy (op, "\xFC\xDC\x00\x00\x00\x00", 6); | |
931 | /* add e2,a0. */ | |
932 | memcpy (op+6, "\xF9\x78\x28", 3); | |
933 | /* or 0x00000000, d0 - six byte nop. */ | |
934 | memcpy (op+9, "\xFC\xE4\x00\x00\x00\x00", 6); | |
935 | } | |
936 | return 7; | |
937 | case TLS_PAIR (R_MN10300_TLS_LD, R_MN10300_NONE): | |
938 | { | |
939 | /* Register is *always* a0. */ | |
940 | /* mov e2,a0. */ | |
941 | memcpy (op, "\xF5\x88", 2); | |
942 | /* or 0x00000000, d0 - six byte nop. */ | |
943 | memcpy (op+2, "\xFC\xE4\x00\x00\x00\x00", 6); | |
944 | /* or 0x00000000, e2 - seven byte nop. */ | |
945 | memcpy (op+8, "\xFE\x19\x22\x00\x00\x00\x00", 7); | |
946 | } | |
947 | return 7; | |
948 | ||
949 | case TLS_PAIR (R_MN10300_TLS_LDO, R_MN10300_TLS_LE): | |
950 | /* No changes needed, just the reloc change. */ | |
951 | return 0; | |
952 | ||
953 | /* These are a little tricky, because we have to detect which | |
954 | opcode is being used (they're different sizes, with the reloc | |
955 | at different offsets within the opcode) and convert each | |
956 | accordingly, copying the operands as needed. The conversions | |
957 | we do are as follows (IE,GOTIE,LE): | |
958 | ||
959 | 1111 1100 1010 01Dn [-- abs32 --] MOV (x@indntpoff),Dn | |
960 | 1111 1100 0000 DnAm [-- abs32 --] MOV (x@gotntpoff,Am),Dn | |
961 | 1111 1100 1100 11Dn [-- abs32 --] MOV x@tpoff,Dn | |
962 | ||
963 | 1111 1100 1010 00An [-- abs32 --] MOV (x@indntpoff),An | |
964 | 1111 1100 0010 AnAm [-- abs32 --] MOV (x@gotntpoff,Am),An | |
965 | 1111 1100 1101 11An [-- abs32 --] MOV x@tpoff,An | |
966 | ||
967 | 1111 1110 0000 1110 Rnnn Xxxx [-- abs32 --] MOV (x@indntpoff),Rn | |
968 | 1111 1110 0000 1010 Rnnn Rmmm [-- abs32 --] MOV (x@indntpoff,Rm),Rn | |
969 | 1111 1110 0000 1000 Rnnn Xxxx [-- abs32 --] MOV x@tpoff,Rn | |
970 | ||
971 | Since the GOT pointer is always $a2, we assume the last | |
972 | normally won't happen, but let's be paranoid and plan for the | |
973 | day that GCC optimizes it somewhow. */ | |
974 | ||
975 | case TLS_PAIR (R_MN10300_TLS_IE, R_MN10300_TLS_LE): | |
976 | if (op[-2] == 0xFC) | |
977 | { | |
978 | op -= 2; | |
979 | if ((op[1] & 0xFC) == 0xA4) /* Dn */ | |
980 | { | |
981 | op[1] &= 0x03; /* Leaves Dn. */ | |
982 | op[1] |= 0xCC; | |
983 | } | |
984 | else /* An */ | |
985 | { | |
986 | op[1] &= 0x03; /* Leaves An. */ | |
987 | op[1] |= 0xDC; | |
988 | } | |
989 | } | |
990 | else if (op[-3] == 0xFE) | |
991 | op[-2] = 0x08; | |
992 | else | |
993 | abort (); | |
994 | break; | |
995 | ||
996 | case TLS_PAIR (R_MN10300_TLS_GOTIE, R_MN10300_TLS_LE): | |
997 | if (op[-2] == 0xFC) | |
998 | { | |
999 | op -= 2; | |
1000 | if ((op[1] & 0xF0) == 0x00) /* Dn */ | |
1001 | { | |
1002 | op[1] &= 0x0C; /* Leaves Dn. */ | |
1003 | op[1] >>= 2; | |
1004 | op[1] |= 0xCC; | |
1005 | } | |
1006 | else /* An */ | |
1007 | { | |
1008 | op[1] &= 0x0C; /* Leaves An. */ | |
1009 | op[1] >>= 2; | |
1010 | op[1] |= 0xDC; | |
1011 | } | |
1012 | } | |
1013 | else if (op[-3] == 0xFE) | |
1014 | op[-2] = 0x08; | |
1015 | else | |
1016 | abort (); | |
1017 | break; | |
1018 | ||
1019 | default: | |
1020 | (*_bfd_error_handler) | |
1021 | (_("%s: Unsupported transition from %s to %s"), | |
1022 | bfd_get_filename (input_bfd), | |
1023 | elf_mn10300_howto_table[r_type].name, | |
1024 | elf_mn10300_howto_table[tls_r_type].name); | |
1025 | break; | |
1026 | } | |
1027 | #undef TLS_PAIR | |
1028 | return 0; | |
1029 | } | |
1030 | ||
252b5132 RH |
1031 | /* Look through the relocs for a section during the first phase. |
1032 | Since we don't do .gots or .plts, we just need to consider the | |
1033 | virtual table relocs for gc. */ | |
1034 | ||
b34976b6 | 1035 | static bfd_boolean |
603b7257 NC |
1036 | mn10300_elf_check_relocs (bfd *abfd, |
1037 | struct bfd_link_info *info, | |
1038 | asection *sec, | |
1039 | const Elf_Internal_Rela *relocs) | |
252b5132 | 1040 | { |
0a22ae8e | 1041 | struct elf32_mn10300_link_hash_table * htab = elf32_mn10300_hash_table (info); |
bfff1642 | 1042 | bfd_boolean sym_diff_reloc_seen; |
252b5132 | 1043 | Elf_Internal_Shdr *symtab_hdr; |
62d7f790 | 1044 | Elf_Internal_Sym * isymbuf = NULL; |
5582a088 | 1045 | struct elf_link_hash_entry **sym_hashes; |
252b5132 RH |
1046 | const Elf_Internal_Rela *rel; |
1047 | const Elf_Internal_Rela *rel_end; | |
03a12831 AO |
1048 | bfd * dynobj; |
1049 | bfd_vma * local_got_offsets; | |
1050 | asection * sgot; | |
1051 | asection * srelgot; | |
1052 | asection * sreloc; | |
62d7f790 | 1053 | bfd_boolean result = FALSE; |
03a12831 AO |
1054 | |
1055 | sgot = NULL; | |
1056 | srelgot = NULL; | |
1057 | sreloc = NULL; | |
252b5132 | 1058 | |
1049f94e | 1059 | if (info->relocatable) |
b34976b6 | 1060 | return TRUE; |
252b5132 RH |
1061 | |
1062 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
62d7f790 | 1063 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
252b5132 | 1064 | sym_hashes = elf_sym_hashes (abfd); |
252b5132 | 1065 | |
03a12831 AO |
1066 | dynobj = elf_hash_table (info)->dynobj; |
1067 | local_got_offsets = elf_local_got_offsets (abfd); | |
252b5132 | 1068 | rel_end = relocs + sec->reloc_count; |
bfff1642 | 1069 | sym_diff_reloc_seen = FALSE; |
603b7257 | 1070 | |
252b5132 RH |
1071 | for (rel = relocs; rel < rel_end; rel++) |
1072 | { | |
1073 | struct elf_link_hash_entry *h; | |
1074 | unsigned long r_symndx; | |
62d7f790 | 1075 | unsigned int r_type; |
0a22ae8e | 1076 | int tls_type = GOT_NORMAL; |
252b5132 RH |
1077 | |
1078 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1079 | if (r_symndx < symtab_hdr->sh_info) | |
1080 | h = NULL; | |
1081 | else | |
973a3492 L |
1082 | { |
1083 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1084 | while (h->root.type == bfd_link_hash_indirect | |
1085 | || h->root.type == bfd_link_hash_warning) | |
1086 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
1087 | |
1088 | /* PR15323, ref flags aren't set for references in the same | |
1089 | object. */ | |
1090 | h->root.non_ir_ref = 1; | |
973a3492 | 1091 | } |
252b5132 | 1092 | |
62d7f790 | 1093 | r_type = ELF32_R_TYPE (rel->r_info); |
0a22ae8e | 1094 | r_type = elf_mn10300_tls_transition (info, r_type, h, sec, TRUE); |
62d7f790 | 1095 | |
03a12831 AO |
1096 | /* Some relocs require a global offset table. */ |
1097 | if (dynobj == NULL) | |
1098 | { | |
62d7f790 | 1099 | switch (r_type) |
03a12831 AO |
1100 | { |
1101 | case R_MN10300_GOT32: | |
1102 | case R_MN10300_GOT24: | |
1103 | case R_MN10300_GOT16: | |
1104 | case R_MN10300_GOTOFF32: | |
1105 | case R_MN10300_GOTOFF24: | |
1106 | case R_MN10300_GOTOFF16: | |
1107 | case R_MN10300_GOTPC32: | |
1108 | case R_MN10300_GOTPC16: | |
0a22ae8e NC |
1109 | case R_MN10300_TLS_GD: |
1110 | case R_MN10300_TLS_LD: | |
1111 | case R_MN10300_TLS_GOTIE: | |
1112 | case R_MN10300_TLS_IE: | |
03a12831 AO |
1113 | elf_hash_table (info)->dynobj = dynobj = abfd; |
1114 | if (! _bfd_mn10300_elf_create_got_section (dynobj, info)) | |
62d7f790 | 1115 | goto fail; |
03a12831 AO |
1116 | break; |
1117 | ||
1118 | default: | |
1119 | break; | |
1120 | } | |
1121 | } | |
1122 | ||
62d7f790 | 1123 | switch (r_type) |
252b5132 RH |
1124 | { |
1125 | /* This relocation describes the C++ object vtable hierarchy. | |
1126 | Reconstruct it for later use during GC. */ | |
1127 | case R_MN10300_GNU_VTINHERIT: | |
c152c796 | 1128 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
62d7f790 | 1129 | goto fail; |
252b5132 RH |
1130 | break; |
1131 | ||
1132 | /* This relocation describes which C++ vtable entries are actually | |
1133 | used. Record for later use during GC. */ | |
1134 | case R_MN10300_GNU_VTENTRY: | |
d17e0c6e JB |
1135 | BFD_ASSERT (h != NULL); |
1136 | if (h != NULL | |
1137 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
62d7f790 | 1138 | goto fail; |
252b5132 | 1139 | break; |
62d7f790 | 1140 | |
0a22ae8e NC |
1141 | case R_MN10300_TLS_LD: |
1142 | htab->tls_ldm_got.refcount ++; | |
1143 | tls_type = GOT_TLS_LD; | |
1144 | ||
1145 | if (htab->tls_ldm_got.got_allocated) | |
1146 | break; | |
1147 | goto create_got; | |
1148 | ||
1149 | case R_MN10300_TLS_IE: | |
1150 | case R_MN10300_TLS_GOTIE: | |
1151 | if (info->shared) | |
1152 | info->flags |= DF_STATIC_TLS; | |
1153 | /* Fall through */ | |
68ffbac6 | 1154 | |
0a22ae8e | 1155 | case R_MN10300_TLS_GD: |
03a12831 AO |
1156 | case R_MN10300_GOT32: |
1157 | case R_MN10300_GOT24: | |
1158 | case R_MN10300_GOT16: | |
0a22ae8e | 1159 | create_got: |
03a12831 AO |
1160 | /* This symbol requires a global offset table entry. */ |
1161 | ||
0a22ae8e NC |
1162 | switch (r_type) |
1163 | { | |
1164 | case R_MN10300_TLS_IE: | |
1165 | case R_MN10300_TLS_GOTIE: tls_type = GOT_TLS_IE; break; | |
1166 | case R_MN10300_TLS_GD: tls_type = GOT_TLS_GD; break; | |
1167 | default: tls_type = GOT_NORMAL; break; | |
1168 | } | |
1169 | ||
03a12831 AO |
1170 | if (sgot == NULL) |
1171 | { | |
3d4d4302 | 1172 | sgot = htab->root.sgot; |
03a12831 AO |
1173 | BFD_ASSERT (sgot != NULL); |
1174 | } | |
1175 | ||
1176 | if (srelgot == NULL | |
1177 | && (h != NULL || info->shared)) | |
1178 | { | |
3d4d4302 | 1179 | srelgot = bfd_get_linker_section (dynobj, ".rela.got"); |
03a12831 AO |
1180 | if (srelgot == NULL) |
1181 | { | |
3d4d4302 AM |
1182 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
1183 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
1184 | | SEC_READONLY); | |
1185 | srelgot = bfd_make_section_anyway_with_flags (dynobj, | |
1186 | ".rela.got", | |
1187 | flags); | |
03a12831 | 1188 | if (srelgot == NULL |
03a12831 | 1189 | || ! bfd_set_section_alignment (dynobj, srelgot, 2)) |
62d7f790 | 1190 | goto fail; |
03a12831 AO |
1191 | } |
1192 | } | |
1193 | ||
0a22ae8e NC |
1194 | if (r_type == R_MN10300_TLS_LD) |
1195 | { | |
1196 | htab->tls_ldm_got.offset = sgot->size; | |
1197 | htab->tls_ldm_got.got_allocated ++; | |
1198 | } | |
1199 | else if (h != NULL) | |
03a12831 | 1200 | { |
0a22ae8e NC |
1201 | if (elf_mn10300_hash_entry (h)->tls_type != tls_type |
1202 | && elf_mn10300_hash_entry (h)->tls_type != GOT_UNKNOWN) | |
1203 | { | |
1204 | if (tls_type == GOT_TLS_IE | |
1205 | && elf_mn10300_hash_entry (h)->tls_type == GOT_TLS_GD) | |
1206 | /* No change - this is ok. */; | |
1207 | else if (tls_type == GOT_TLS_GD | |
1208 | && elf_mn10300_hash_entry (h)->tls_type == GOT_TLS_IE) | |
1209 | /* Transition GD->IE. */ | |
1210 | tls_type = GOT_TLS_IE; | |
1211 | else | |
1212 | (*_bfd_error_handler) | |
1213 | (_("%B: %s' accessed both as normal and thread local symbol"), | |
1214 | abfd, h ? h->root.root.string : "<local>"); | |
1215 | } | |
1216 | ||
1217 | elf_mn10300_hash_entry (h)->tls_type = tls_type; | |
1218 | ||
03a12831 AO |
1219 | if (h->got.offset != (bfd_vma) -1) |
1220 | /* We have already allocated space in the .got. */ | |
1221 | break; | |
1222 | ||
eea6121a | 1223 | h->got.offset = sgot->size; |
03a12831 | 1224 | |
0a22ae8e NC |
1225 | if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL |
1226 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1227 | && h->dynindx == -1) | |
03a12831 | 1228 | { |
c152c796 | 1229 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
62d7f790 | 1230 | goto fail; |
03a12831 AO |
1231 | } |
1232 | ||
eea6121a | 1233 | srelgot->size += sizeof (Elf32_External_Rela); |
0a22ae8e NC |
1234 | if (r_type == R_MN10300_TLS_GD) |
1235 | srelgot->size += sizeof (Elf32_External_Rela); | |
03a12831 AO |
1236 | } |
1237 | else | |
1238 | { | |
1239 | /* This is a global offset table entry for a local | |
3b36f7e6 | 1240 | symbol. */ |
03a12831 AO |
1241 | if (local_got_offsets == NULL) |
1242 | { | |
1243 | size_t size; | |
1244 | unsigned int i; | |
1245 | ||
0a22ae8e | 1246 | size = symtab_hdr->sh_info * (sizeof (bfd_vma) + sizeof (char)); |
603b7257 | 1247 | local_got_offsets = bfd_alloc (abfd, size); |
03a12831 AO |
1248 | |
1249 | if (local_got_offsets == NULL) | |
62d7f790 NC |
1250 | goto fail; |
1251 | ||
03a12831 | 1252 | elf_local_got_offsets (abfd) = local_got_offsets; |
0a22ae8e NC |
1253 | elf_mn10300_local_got_tls_type (abfd) |
1254 | = (char *) (local_got_offsets + symtab_hdr->sh_info); | |
03a12831 AO |
1255 | |
1256 | for (i = 0; i < symtab_hdr->sh_info; i++) | |
1257 | local_got_offsets[i] = (bfd_vma) -1; | |
1258 | } | |
1259 | ||
1260 | if (local_got_offsets[r_symndx] != (bfd_vma) -1) | |
1261 | /* We have already allocated space in the .got. */ | |
1262 | break; | |
1263 | ||
eea6121a | 1264 | local_got_offsets[r_symndx] = sgot->size; |
03a12831 AO |
1265 | |
1266 | if (info->shared) | |
0a22ae8e NC |
1267 | { |
1268 | /* If we are generating a shared object, we need to | |
1269 | output a R_MN10300_RELATIVE reloc so that the dynamic | |
1270 | linker can adjust this GOT entry. */ | |
1271 | srelgot->size += sizeof (Elf32_External_Rela); | |
1272 | ||
1273 | if (r_type == R_MN10300_TLS_GD) | |
1274 | /* And a R_MN10300_TLS_DTPOFF reloc as well. */ | |
1275 | srelgot->size += sizeof (Elf32_External_Rela); | |
1276 | } | |
1277 | ||
1278 | elf_mn10300_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
03a12831 AO |
1279 | } |
1280 | ||
eea6121a | 1281 | sgot->size += 4; |
0a22ae8e NC |
1282 | if (r_type == R_MN10300_TLS_GD |
1283 | || r_type == R_MN10300_TLS_LD) | |
1284 | sgot->size += 4; | |
1285 | ||
1286 | goto need_shared_relocs; | |
03a12831 AO |
1287 | |
1288 | case R_MN10300_PLT32: | |
1289 | case R_MN10300_PLT16: | |
1290 | /* This symbol requires a procedure linkage table entry. We | |
1291 | actually build the entry in adjust_dynamic_symbol, | |
1292 | because this might be a case of linking PIC code which is | |
1293 | never referenced by a dynamic object, in which case we | |
1294 | don't need to generate a procedure linkage table entry | |
1295 | after all. */ | |
1296 | ||
1297 | /* If this is a local symbol, we resolve it directly without | |
1298 | creating a procedure linkage table entry. */ | |
1299 | if (h == NULL) | |
1300 | continue; | |
1301 | ||
1302 | if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL | |
1303 | || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) | |
1304 | break; | |
1305 | ||
f5385ebf | 1306 | h->needs_plt = 1; |
03a12831 AO |
1307 | break; |
1308 | ||
03a12831 AO |
1309 | case R_MN10300_24: |
1310 | case R_MN10300_16: | |
1311 | case R_MN10300_8: | |
1312 | case R_MN10300_PCREL32: | |
1313 | case R_MN10300_PCREL16: | |
1314 | case R_MN10300_PCREL8: | |
1315 | if (h != NULL) | |
f5385ebf | 1316 | h->non_got_ref = 1; |
146ccdbb | 1317 | break; |
03a12831 | 1318 | |
bfff1642 NC |
1319 | case R_MN10300_SYM_DIFF: |
1320 | sym_diff_reloc_seen = TRUE; | |
1321 | break; | |
1322 | ||
146ccdbb AO |
1323 | case R_MN10300_32: |
1324 | if (h != NULL) | |
f5385ebf | 1325 | h->non_got_ref = 1; |
146ccdbb | 1326 | |
0a22ae8e | 1327 | need_shared_relocs: |
bfff1642 NC |
1328 | /* If we are creating a shared library, then we |
1329 | need to copy the reloc into the shared library. */ | |
03a12831 | 1330 | if (info->shared |
bfff1642 NC |
1331 | && (sec->flags & SEC_ALLOC) != 0 |
1332 | /* Do not generate a dynamic reloc for a | |
1333 | reloc associated with a SYM_DIFF operation. */ | |
1334 | && ! sym_diff_reloc_seen) | |
03a12831 | 1335 | { |
bfff1642 | 1336 | asection * sym_section = NULL; |
03a12831 | 1337 | |
bfff1642 NC |
1338 | /* Find the section containing the |
1339 | symbol involved in the relocation. */ | |
1340 | if (h == NULL) | |
1341 | { | |
bfff1642 NC |
1342 | Elf_Internal_Sym * isym; |
1343 | ||
bfff1642 NC |
1344 | if (isymbuf == NULL) |
1345 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
1346 | symtab_hdr->sh_info, 0, | |
1347 | NULL, NULL, NULL); | |
1348 | if (isymbuf) | |
1349 | { | |
1350 | isym = isymbuf + r_symndx; | |
1351 | /* All we care about is whether this local symbol is absolute. */ | |
1352 | if (isym->st_shndx == SHN_ABS) | |
1353 | sym_section = bfd_abs_section_ptr; | |
1354 | } | |
1355 | } | |
1356 | else | |
1357 | { | |
1358 | if (h->root.type == bfd_link_hash_defined | |
1359 | || h->root.type == bfd_link_hash_defweak) | |
1360 | sym_section = h->root.u.def.section; | |
1361 | } | |
03a12831 | 1362 | |
bfff1642 NC |
1363 | /* If the symbol is absolute then the relocation can |
1364 | be resolved during linking and there is no need for | |
1365 | a dynamic reloc. */ | |
1366 | if (sym_section != bfd_abs_section_ptr) | |
1367 | { | |
1368 | /* When creating a shared object, we must copy these | |
1369 | reloc types into the output file. We create a reloc | |
1370 | section in dynobj and make room for this reloc. */ | |
03a12831 AO |
1371 | if (sreloc == NULL) |
1372 | { | |
83bac4b0 NC |
1373 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1374 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
bfff1642 | 1375 | if (sreloc == NULL) |
83bac4b0 | 1376 | goto fail; |
03a12831 | 1377 | } |
03a12831 | 1378 | |
bfff1642 NC |
1379 | sreloc->size += sizeof (Elf32_External_Rela); |
1380 | } | |
03a12831 AO |
1381 | } |
1382 | ||
1383 | break; | |
252b5132 | 1384 | } |
bfff1642 NC |
1385 | |
1386 | if (ELF32_R_TYPE (rel->r_info) != R_MN10300_SYM_DIFF) | |
1387 | sym_diff_reloc_seen = FALSE; | |
252b5132 RH |
1388 | } |
1389 | ||
62d7f790 NC |
1390 | result = TRUE; |
1391 | fail: | |
1392 | if (isymbuf != NULL) | |
1393 | free (isymbuf); | |
1394 | ||
1395 | return result; | |
252b5132 RH |
1396 | } |
1397 | ||
1398 | /* Return the section that should be marked against GC for a given | |
1399 | relocation. */ | |
1400 | ||
1401 | static asection * | |
07adf181 AM |
1402 | mn10300_elf_gc_mark_hook (asection *sec, |
1403 | struct bfd_link_info *info, | |
1404 | Elf_Internal_Rela *rel, | |
1405 | struct elf_link_hash_entry *h, | |
1406 | Elf_Internal_Sym *sym) | |
252b5132 RH |
1407 | { |
1408 | if (h != NULL) | |
07adf181 AM |
1409 | switch (ELF32_R_TYPE (rel->r_info)) |
1410 | { | |
1411 | case R_MN10300_GNU_VTINHERIT: | |
1412 | case R_MN10300_GNU_VTENTRY: | |
1413 | return NULL; | |
1414 | } | |
1415 | ||
1416 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
252b5132 RH |
1417 | } |
1418 | ||
1419 | /* Perform a relocation as part of a final link. */ | |
603b7257 | 1420 | |
252b5132 | 1421 | static bfd_reloc_status_type |
603b7257 NC |
1422 | mn10300_elf_final_link_relocate (reloc_howto_type *howto, |
1423 | bfd *input_bfd, | |
1424 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
1425 | asection *input_section, | |
1426 | bfd_byte *contents, | |
1427 | bfd_vma offset, | |
1428 | bfd_vma value, | |
1429 | bfd_vma addend, | |
1430 | struct elf_link_hash_entry * h, | |
1431 | unsigned long symndx, | |
1432 | struct bfd_link_info *info, | |
1433 | asection *sym_sec ATTRIBUTE_UNUSED, | |
1434 | int is_local ATTRIBUTE_UNUSED) | |
252b5132 | 1435 | { |
0a22ae8e | 1436 | struct elf32_mn10300_link_hash_table * htab = elf32_mn10300_hash_table (info); |
bfff1642 NC |
1437 | static asection * sym_diff_section; |
1438 | static bfd_vma sym_diff_value; | |
1439 | bfd_boolean is_sym_diff_reloc; | |
252b5132 | 1440 | unsigned long r_type = howto->type; |
603b7257 | 1441 | bfd_byte * hit_data = contents + offset; |
03a12831 | 1442 | bfd * dynobj; |
03a12831 AO |
1443 | asection * sgot; |
1444 | asection * splt; | |
1445 | asection * sreloc; | |
1446 | ||
1447 | dynobj = elf_hash_table (info)->dynobj; | |
03a12831 AO |
1448 | sgot = NULL; |
1449 | splt = NULL; | |
1450 | sreloc = NULL; | |
252b5132 | 1451 | |
146ccdbb AO |
1452 | switch (r_type) |
1453 | { | |
1454 | case R_MN10300_24: | |
1455 | case R_MN10300_16: | |
1456 | case R_MN10300_8: | |
1457 | case R_MN10300_PCREL8: | |
1458 | case R_MN10300_PCREL16: | |
1459 | case R_MN10300_PCREL32: | |
1460 | case R_MN10300_GOTOFF32: | |
1461 | case R_MN10300_GOTOFF24: | |
1462 | case R_MN10300_GOTOFF16: | |
1463 | if (info->shared | |
1464 | && (input_section->flags & SEC_ALLOC) != 0 | |
1465 | && h != NULL | |
7e2294f9 | 1466 | && ! SYMBOL_REFERENCES_LOCAL (info, h)) |
146ccdbb | 1467 | return bfd_reloc_dangerous; |
0a22ae8e NC |
1468 | case R_MN10300_GOT32: |
1469 | /* Issue 2052223: | |
1470 | Taking the address of a protected function in a shared library | |
1471 | is illegal. Issue an error message here. */ | |
1472 | if (info->shared | |
1473 | && (input_section->flags & SEC_ALLOC) != 0 | |
1474 | && h != NULL | |
1475 | && ELF_ST_VISIBILITY (h->other) == STV_PROTECTED | |
1476 | && (h->type == STT_FUNC || h->type == STT_GNU_IFUNC) | |
1477 | && ! SYMBOL_REFERENCES_LOCAL (info, h)) | |
1478 | return bfd_reloc_dangerous; | |
146ccdbb AO |
1479 | } |
1480 | ||
bfff1642 NC |
1481 | is_sym_diff_reloc = FALSE; |
1482 | if (sym_diff_section != NULL) | |
1483 | { | |
1484 | BFD_ASSERT (sym_diff_section == input_section); | |
1485 | ||
1486 | switch (r_type) | |
1487 | { | |
1488 | case R_MN10300_32: | |
1489 | case R_MN10300_24: | |
1490 | case R_MN10300_16: | |
1491 | case R_MN10300_8: | |
1492 | value -= sym_diff_value; | |
b5f5fd96 NC |
1493 | /* If we are computing a 32-bit value for the location lists |
1494 | and the result is 0 then we add one to the value. A zero | |
1495 | value can result because of linker relaxation deleteing | |
1496 | prologue instructions and using a value of 1 (for the begin | |
1497 | and end offsets in the location list entry) results in a | |
1498 | nul entry which does not prevent the following entries from | |
1499 | being parsed. */ | |
1500 | if (r_type == R_MN10300_32 | |
1501 | && value == 0 | |
1502 | && strcmp (input_section->name, ".debug_loc") == 0) | |
1503 | value = 1; | |
bfff1642 NC |
1504 | sym_diff_section = NULL; |
1505 | is_sym_diff_reloc = TRUE; | |
1506 | break; | |
1507 | ||
1508 | default: | |
1509 | sym_diff_section = NULL; | |
1510 | break; | |
1511 | } | |
1512 | } | |
1513 | ||
252b5132 RH |
1514 | switch (r_type) |
1515 | { | |
bfff1642 NC |
1516 | case R_MN10300_SYM_DIFF: |
1517 | BFD_ASSERT (addend == 0); | |
1518 | /* Cache the input section and value. | |
1519 | The offset is unreliable, since relaxation may | |
1520 | have reduced the following reloc's offset. */ | |
1521 | sym_diff_section = input_section; | |
1522 | sym_diff_value = value; | |
1523 | return bfd_reloc_ok; | |
1524 | ||
569006e5 | 1525 | case R_MN10300_ALIGN: |
252b5132 RH |
1526 | case R_MN10300_NONE: |
1527 | return bfd_reloc_ok; | |
1528 | ||
1529 | case R_MN10300_32: | |
03a12831 | 1530 | if (info->shared |
bfff1642 NC |
1531 | /* Do not generate relocs when an R_MN10300_32 has been used |
1532 | with an R_MN10300_SYM_DIFF to compute a difference of two | |
1533 | symbols. */ | |
1534 | && is_sym_diff_reloc == FALSE | |
1535 | /* Also, do not generate a reloc when the symbol associated | |
1536 | with the R_MN10300_32 reloc is absolute - there is no | |
1537 | need for a run time computation in this case. */ | |
1538 | && sym_sec != bfd_abs_section_ptr | |
1539 | /* If the section is not going to be allocated at load time | |
1540 | then there is no need to generate relocs for it. */ | |
03a12831 AO |
1541 | && (input_section->flags & SEC_ALLOC) != 0) |
1542 | { | |
1543 | Elf_Internal_Rela outrel; | |
1544 | bfd_boolean skip, relocate; | |
1545 | ||
1546 | /* When generating a shared object, these relocations are | |
1547 | copied into the output file to be resolved at run | |
1548 | time. */ | |
1549 | if (sreloc == NULL) | |
1550 | { | |
83bac4b0 NC |
1551 | sreloc = _bfd_elf_get_dynamic_reloc_section |
1552 | (input_bfd, input_section, /*rela?*/ TRUE); | |
1553 | if (sreloc == NULL) | |
03a12831 | 1554 | return FALSE; |
03a12831 AO |
1555 | } |
1556 | ||
1557 | skip = FALSE; | |
1558 | ||
eea6121a AM |
1559 | outrel.r_offset = _bfd_elf_section_offset (input_bfd, info, |
1560 | input_section, offset); | |
1561 | if (outrel.r_offset == (bfd_vma) -1) | |
1562 | skip = TRUE; | |
03a12831 AO |
1563 | |
1564 | outrel.r_offset += (input_section->output_section->vma | |
1565 | + input_section->output_offset); | |
1566 | ||
1567 | if (skip) | |
1568 | { | |
1569 | memset (&outrel, 0, sizeof outrel); | |
1570 | relocate = FALSE; | |
1571 | } | |
1572 | else | |
1573 | { | |
1574 | /* h->dynindx may be -1 if this symbol was marked to | |
1575 | become local. */ | |
1576 | if (h == NULL | |
7e2294f9 | 1577 | || SYMBOL_REFERENCES_LOCAL (info, h)) |
03a12831 AO |
1578 | { |
1579 | relocate = TRUE; | |
1580 | outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE); | |
1581 | outrel.r_addend = value + addend; | |
1582 | } | |
1583 | else | |
1584 | { | |
1585 | BFD_ASSERT (h->dynindx != -1); | |
1586 | relocate = FALSE; | |
1587 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_32); | |
1588 | outrel.r_addend = value + addend; | |
1589 | } | |
1590 | } | |
1591 | ||
1592 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
560e09e9 NC |
1593 | (bfd_byte *) (((Elf32_External_Rela *) sreloc->contents) |
1594 | + sreloc->reloc_count)); | |
03a12831 AO |
1595 | ++sreloc->reloc_count; |
1596 | ||
1597 | /* If this reloc is against an external symbol, we do | |
1598 | not want to fiddle with the addend. Otherwise, we | |
1599 | need to include the symbol value so that it becomes | |
1600 | an addend for the dynamic reloc. */ | |
1601 | if (! relocate) | |
1602 | return bfd_reloc_ok; | |
1603 | } | |
252b5132 RH |
1604 | value += addend; |
1605 | bfd_put_32 (input_bfd, value, hit_data); | |
1606 | return bfd_reloc_ok; | |
1607 | ||
1608 | case R_MN10300_24: | |
1609 | value += addend; | |
1610 | ||
010ac81f | 1611 | if ((long) value > 0x7fffff || (long) value < -0x800000) |
252b5132 RH |
1612 | return bfd_reloc_overflow; |
1613 | ||
1614 | bfd_put_8 (input_bfd, value & 0xff, hit_data); | |
1615 | bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1); | |
1616 | bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2); | |
1617 | return bfd_reloc_ok; | |
1618 | ||
1619 | case R_MN10300_16: | |
1620 | value += addend; | |
1621 | ||
010ac81f | 1622 | if ((long) value > 0x7fff || (long) value < -0x8000) |
252b5132 RH |
1623 | return bfd_reloc_overflow; |
1624 | ||
1625 | bfd_put_16 (input_bfd, value, hit_data); | |
1626 | return bfd_reloc_ok; | |
1627 | ||
1628 | case R_MN10300_8: | |
1629 | value += addend; | |
1630 | ||
010ac81f | 1631 | if ((long) value > 0x7f || (long) value < -0x80) |
252b5132 RH |
1632 | return bfd_reloc_overflow; |
1633 | ||
1634 | bfd_put_8 (input_bfd, value, hit_data); | |
1635 | return bfd_reloc_ok; | |
1636 | ||
1637 | case R_MN10300_PCREL8: | |
1638 | value -= (input_section->output_section->vma | |
1639 | + input_section->output_offset); | |
1640 | value -= offset; | |
1641 | value += addend; | |
1642 | ||
605d18d4 | 1643 | if ((long) value > 0x7f || (long) value < -0x80) |
252b5132 RH |
1644 | return bfd_reloc_overflow; |
1645 | ||
1646 | bfd_put_8 (input_bfd, value, hit_data); | |
1647 | return bfd_reloc_ok; | |
1648 | ||
1649 | case R_MN10300_PCREL16: | |
1650 | value -= (input_section->output_section->vma | |
1651 | + input_section->output_offset); | |
1652 | value -= offset; | |
1653 | value += addend; | |
1654 | ||
605d18d4 | 1655 | if ((long) value > 0x7fff || (long) value < -0x8000) |
252b5132 RH |
1656 | return bfd_reloc_overflow; |
1657 | ||
1658 | bfd_put_16 (input_bfd, value, hit_data); | |
1659 | return bfd_reloc_ok; | |
1660 | ||
1661 | case R_MN10300_PCREL32: | |
1662 | value -= (input_section->output_section->vma | |
1663 | + input_section->output_offset); | |
1664 | value -= offset; | |
1665 | value += addend; | |
1666 | ||
1667 | bfd_put_32 (input_bfd, value, hit_data); | |
1668 | return bfd_reloc_ok; | |
1669 | ||
1670 | case R_MN10300_GNU_VTINHERIT: | |
1671 | case R_MN10300_GNU_VTENTRY: | |
1672 | return bfd_reloc_ok; | |
1673 | ||
03a12831 | 1674 | case R_MN10300_GOTPC32: |
0a22ae8e NC |
1675 | if (dynobj == NULL) |
1676 | return bfd_reloc_dangerous; | |
1677 | ||
03a12831 | 1678 | /* Use global offset table as symbol value. */ |
3d4d4302 | 1679 | value = htab->root.sgot->output_section->vma; |
03a12831 AO |
1680 | value -= (input_section->output_section->vma |
1681 | + input_section->output_offset); | |
1682 | value -= offset; | |
1683 | value += addend; | |
1684 | ||
1685 | bfd_put_32 (input_bfd, value, hit_data); | |
1686 | return bfd_reloc_ok; | |
3b36f7e6 | 1687 | |
03a12831 | 1688 | case R_MN10300_GOTPC16: |
0a22ae8e NC |
1689 | if (dynobj == NULL) |
1690 | return bfd_reloc_dangerous; | |
1691 | ||
03a12831 | 1692 | /* Use global offset table as symbol value. */ |
3d4d4302 | 1693 | value = htab->root.sgot->output_section->vma; |
03a12831 AO |
1694 | value -= (input_section->output_section->vma |
1695 | + input_section->output_offset); | |
1696 | value -= offset; | |
1697 | value += addend; | |
1698 | ||
605d18d4 | 1699 | if ((long) value > 0x7fff || (long) value < -0x8000) |
03a12831 AO |
1700 | return bfd_reloc_overflow; |
1701 | ||
1702 | bfd_put_16 (input_bfd, value, hit_data); | |
1703 | return bfd_reloc_ok; | |
1704 | ||
1705 | case R_MN10300_GOTOFF32: | |
0a22ae8e NC |
1706 | if (dynobj == NULL) |
1707 | return bfd_reloc_dangerous; | |
1708 | ||
3d4d4302 | 1709 | value -= htab->root.sgot->output_section->vma; |
03a12831 | 1710 | value += addend; |
3b36f7e6 | 1711 | |
03a12831 AO |
1712 | bfd_put_32 (input_bfd, value, hit_data); |
1713 | return bfd_reloc_ok; | |
1714 | ||
1715 | case R_MN10300_GOTOFF24: | |
0a22ae8e NC |
1716 | if (dynobj == NULL) |
1717 | return bfd_reloc_dangerous; | |
1718 | ||
3d4d4302 | 1719 | value -= htab->root.sgot->output_section->vma; |
03a12831 | 1720 | value += addend; |
3b36f7e6 | 1721 | |
03a12831 AO |
1722 | if ((long) value > 0x7fffff || (long) value < -0x800000) |
1723 | return bfd_reloc_overflow; | |
1724 | ||
1725 | bfd_put_8 (input_bfd, value, hit_data); | |
1726 | bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1); | |
1727 | bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2); | |
1728 | return bfd_reloc_ok; | |
1729 | ||
1730 | case R_MN10300_GOTOFF16: | |
0a22ae8e NC |
1731 | if (dynobj == NULL) |
1732 | return bfd_reloc_dangerous; | |
1733 | ||
3d4d4302 | 1734 | value -= htab->root.sgot->output_section->vma; |
03a12831 | 1735 | value += addend; |
3b36f7e6 | 1736 | |
605d18d4 | 1737 | if ((long) value > 0x7fff || (long) value < -0x8000) |
03a12831 AO |
1738 | return bfd_reloc_overflow; |
1739 | ||
1740 | bfd_put_16 (input_bfd, value, hit_data); | |
1741 | return bfd_reloc_ok; | |
1742 | ||
1743 | case R_MN10300_PLT32: | |
1744 | if (h != NULL | |
1745 | && ELF_ST_VISIBILITY (h->other) != STV_INTERNAL | |
1746 | && ELF_ST_VISIBILITY (h->other) != STV_HIDDEN | |
1747 | && h->plt.offset != (bfd_vma) -1) | |
1748 | { | |
0a22ae8e NC |
1749 | if (dynobj == NULL) |
1750 | return bfd_reloc_dangerous; | |
1751 | ||
3d4d4302 | 1752 | splt = htab->root.splt; |
03a12831 AO |
1753 | value = (splt->output_section->vma |
1754 | + splt->output_offset | |
1755 | + h->plt.offset) - value; | |
1756 | } | |
1757 | ||
1758 | value -= (input_section->output_section->vma | |
1759 | + input_section->output_offset); | |
1760 | value -= offset; | |
1761 | value += addend; | |
1762 | ||
1763 | bfd_put_32 (input_bfd, value, hit_data); | |
1764 | return bfd_reloc_ok; | |
1765 | ||
1766 | case R_MN10300_PLT16: | |
1767 | if (h != NULL | |
1768 | && ELF_ST_VISIBILITY (h->other) != STV_INTERNAL | |
1769 | && ELF_ST_VISIBILITY (h->other) != STV_HIDDEN | |
1770 | && h->plt.offset != (bfd_vma) -1) | |
1771 | { | |
0a22ae8e NC |
1772 | if (dynobj == NULL) |
1773 | return bfd_reloc_dangerous; | |
1774 | ||
3d4d4302 | 1775 | splt = htab->root.splt; |
03a12831 AO |
1776 | value = (splt->output_section->vma |
1777 | + splt->output_offset | |
1778 | + h->plt.offset) - value; | |
1779 | } | |
1780 | ||
1781 | value -= (input_section->output_section->vma | |
1782 | + input_section->output_offset); | |
1783 | value -= offset; | |
1784 | value += addend; | |
1785 | ||
605d18d4 | 1786 | if ((long) value > 0x7fff || (long) value < -0x8000) |
03a12831 AO |
1787 | return bfd_reloc_overflow; |
1788 | ||
1789 | bfd_put_16 (input_bfd, value, hit_data); | |
1790 | return bfd_reloc_ok; | |
1791 | ||
0a22ae8e NC |
1792 | case R_MN10300_TLS_LDO: |
1793 | value = dtpoff (info, value); | |
1794 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
1795 | return bfd_reloc_ok; | |
1796 | ||
1797 | case R_MN10300_TLS_LE: | |
1798 | value = tpoff (info, value); | |
1799 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
1800 | return bfd_reloc_ok; | |
1801 | ||
1802 | case R_MN10300_TLS_LD: | |
1803 | if (dynobj == NULL) | |
1804 | return bfd_reloc_dangerous; | |
1805 | ||
3d4d4302 | 1806 | sgot = htab->root.sgot; |
0a22ae8e NC |
1807 | BFD_ASSERT (sgot != NULL); |
1808 | value = htab->tls_ldm_got.offset + sgot->output_offset; | |
1809 | bfd_put_32 (input_bfd, value, hit_data); | |
1810 | ||
1811 | if (!htab->tls_ldm_got.rel_emitted) | |
1812 | { | |
3d4d4302 | 1813 | asection * srelgot = bfd_get_linker_section (dynobj, ".rela.got"); |
0a22ae8e NC |
1814 | Elf_Internal_Rela rel; |
1815 | ||
1816 | BFD_ASSERT (srelgot != NULL); | |
1817 | htab->tls_ldm_got.rel_emitted ++; | |
1818 | rel.r_offset = (sgot->output_section->vma | |
1819 | + sgot->output_offset | |
1820 | + htab->tls_ldm_got.offset); | |
1821 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + htab->tls_ldm_got.offset); | |
1822 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + htab->tls_ldm_got.offset+4); | |
1823 | rel.r_info = ELF32_R_INFO (0, R_MN10300_TLS_DTPMOD); | |
1824 | rel.r_addend = 0; | |
1825 | bfd_elf32_swap_reloca_out (output_bfd, & rel, | |
1826 | (bfd_byte *) ((Elf32_External_Rela *) srelgot->contents | |
1827 | + srelgot->reloc_count)); | |
1828 | ++ srelgot->reloc_count; | |
1829 | } | |
1830 | ||
1831 | return bfd_reloc_ok; | |
1832 | ||
1833 | case R_MN10300_TLS_GOTIE: | |
1834 | value = tpoff (info, value); | |
1835 | /* Fall Through. */ | |
1836 | ||
1837 | case R_MN10300_TLS_GD: | |
1838 | case R_MN10300_TLS_IE: | |
03a12831 AO |
1839 | case R_MN10300_GOT32: |
1840 | case R_MN10300_GOT24: | |
1841 | case R_MN10300_GOT16: | |
0a22ae8e NC |
1842 | if (dynobj == NULL) |
1843 | return bfd_reloc_dangerous; | |
3b36f7e6 | 1844 | |
3d4d4302 | 1845 | sgot = htab->root.sgot; |
0a22ae8e NC |
1846 | if (r_type == R_MN10300_TLS_GD) |
1847 | value = dtpoff (info, value); | |
03a12831 | 1848 | |
0a22ae8e NC |
1849 | if (h != NULL) |
1850 | { | |
1851 | bfd_vma off; | |
1852 | ||
1853 | off = h->got.offset; | |
1854 | /* Offsets in the GOT are allocated in check_relocs | |
1855 | which is not called for shared libraries... */ | |
1856 | if (off == (bfd_vma) -1) | |
1857 | off = 0; | |
1858 | ||
1859 | if (sgot->contents != NULL | |
1860 | && (! elf_hash_table (info)->dynamic_sections_created | |
1861 | || SYMBOL_REFERENCES_LOCAL (info, h))) | |
1862 | /* This is actually a static link, or it is a | |
1863 | -Bsymbolic link and the symbol is defined | |
1864 | locally, or the symbol was forced to be local | |
1865 | because of a version file. We must initialize | |
1866 | this entry in the global offset table. | |
1867 | ||
1868 | When doing a dynamic link, we create a .rela.got | |
1869 | relocation entry to initialize the value. This | |
1870 | is done in the finish_dynamic_symbol routine. */ | |
1871 | bfd_put_32 (output_bfd, value, | |
1872 | sgot->contents + off); | |
1873 | ||
1874 | value = sgot->output_offset + off; | |
1875 | } | |
1876 | else | |
1877 | { | |
1878 | bfd_vma off; | |
03a12831 | 1879 | |
0a22ae8e | 1880 | off = elf_local_got_offsets (input_bfd)[symndx]; |
03a12831 | 1881 | |
0a22ae8e NC |
1882 | if (off & 1) |
1883 | bfd_put_32 (output_bfd, value, sgot->contents + (off & ~ 1)); | |
1884 | else | |
1885 | { | |
03a12831 AO |
1886 | bfd_put_32 (output_bfd, value, sgot->contents + off); |
1887 | ||
1888 | if (info->shared) | |
1889 | { | |
1890 | asection * srelgot; | |
1891 | Elf_Internal_Rela outrel; | |
1892 | ||
3d4d4302 | 1893 | srelgot = bfd_get_linker_section (dynobj, ".rela.got"); |
03a12831 AO |
1894 | BFD_ASSERT (srelgot != NULL); |
1895 | ||
1896 | outrel.r_offset = (sgot->output_section->vma | |
1897 | + sgot->output_offset | |
1898 | + off); | |
0a22ae8e NC |
1899 | switch (r_type) |
1900 | { | |
1901 | case R_MN10300_TLS_GD: | |
1902 | outrel.r_info = ELF32_R_INFO (0, R_MN10300_TLS_DTPOFF); | |
1903 | outrel.r_offset = (sgot->output_section->vma | |
1904 | + sgot->output_offset | |
1905 | + off + 4); | |
1906 | bfd_elf32_swap_reloca_out (output_bfd, & outrel, | |
1907 | (bfd_byte *) (((Elf32_External_Rela *) | |
1908 | srelgot->contents) | |
1909 | + srelgot->reloc_count)); | |
1910 | ++ srelgot->reloc_count; | |
1911 | outrel.r_info = ELF32_R_INFO (0, R_MN10300_TLS_DTPMOD); | |
1912 | break; | |
1913 | case R_MN10300_TLS_GOTIE: | |
1914 | case R_MN10300_TLS_IE: | |
1915 | outrel.r_info = ELF32_R_INFO (0, R_MN10300_TLS_TPOFF); | |
1916 | break; | |
1917 | default: | |
1918 | outrel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE); | |
1919 | break; | |
1920 | } | |
1921 | ||
03a12831 AO |
1922 | outrel.r_addend = value; |
1923 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
560e09e9 NC |
1924 | (bfd_byte *) (((Elf32_External_Rela *) |
1925 | srelgot->contents) | |
1926 | + srelgot->reloc_count)); | |
03a12831 | 1927 | ++ srelgot->reloc_count; |
0a22ae8e | 1928 | elf_local_got_offsets (input_bfd)[symndx] |= 1; |
03a12831 AO |
1929 | } |
1930 | ||
0a22ae8e | 1931 | value = sgot->output_offset + (off & ~(bfd_vma) 1); |
03a12831 | 1932 | } |
0a22ae8e | 1933 | } |
03a12831 AO |
1934 | |
1935 | value += addend; | |
1936 | ||
0a22ae8e NC |
1937 | if (r_type == R_MN10300_TLS_IE) |
1938 | { | |
1939 | value += sgot->output_section->vma; | |
1940 | bfd_put_32 (input_bfd, value, hit_data); | |
1941 | return bfd_reloc_ok; | |
1942 | } | |
1943 | else if (r_type == R_MN10300_TLS_GOTIE | |
1944 | || r_type == R_MN10300_TLS_GD | |
1945 | || r_type == R_MN10300_TLS_LD) | |
1946 | { | |
1947 | bfd_put_32 (input_bfd, value, hit_data); | |
1948 | return bfd_reloc_ok; | |
1949 | } | |
1950 | else if (r_type == R_MN10300_GOT32) | |
03a12831 AO |
1951 | { |
1952 | bfd_put_32 (input_bfd, value, hit_data); | |
1953 | return bfd_reloc_ok; | |
1954 | } | |
1955 | else if (r_type == R_MN10300_GOT24) | |
1956 | { | |
1957 | if ((long) value > 0x7fffff || (long) value < -0x800000) | |
1958 | return bfd_reloc_overflow; | |
1959 | ||
1960 | bfd_put_8 (input_bfd, value & 0xff, hit_data); | |
1961 | bfd_put_8 (input_bfd, (value >> 8) & 0xff, hit_data + 1); | |
1962 | bfd_put_8 (input_bfd, (value >> 16) & 0xff, hit_data + 2); | |
1963 | return bfd_reloc_ok; | |
1964 | } | |
1965 | else if (r_type == R_MN10300_GOT16) | |
1966 | { | |
605d18d4 | 1967 | if ((long) value > 0x7fff || (long) value < -0x8000) |
03a12831 AO |
1968 | return bfd_reloc_overflow; |
1969 | ||
1970 | bfd_put_16 (input_bfd, value, hit_data); | |
1971 | return bfd_reloc_ok; | |
1972 | } | |
1973 | /* Fall through. */ | |
3b36f7e6 | 1974 | |
252b5132 RH |
1975 | default: |
1976 | return bfd_reloc_notsupported; | |
1977 | } | |
1978 | } | |
252b5132 RH |
1979 | \f |
1980 | /* Relocate an MN10300 ELF section. */ | |
603b7257 | 1981 | |
b34976b6 | 1982 | static bfd_boolean |
603b7257 NC |
1983 | mn10300_elf_relocate_section (bfd *output_bfd, |
1984 | struct bfd_link_info *info, | |
1985 | bfd *input_bfd, | |
1986 | asection *input_section, | |
1987 | bfd_byte *contents, | |
1988 | Elf_Internal_Rela *relocs, | |
1989 | Elf_Internal_Sym *local_syms, | |
1990 | asection **local_sections) | |
252b5132 RH |
1991 | { |
1992 | Elf_Internal_Shdr *symtab_hdr; | |
b2a8e766 | 1993 | struct elf_link_hash_entry **sym_hashes; |
252b5132 | 1994 | Elf_Internal_Rela *rel, *relend; |
0a22ae8e | 1995 | Elf_Internal_Rela * trel; |
252b5132 RH |
1996 | |
1997 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
b2a8e766 | 1998 | sym_hashes = elf_sym_hashes (input_bfd); |
252b5132 RH |
1999 | |
2000 | rel = relocs; | |
2001 | relend = relocs + input_section->reloc_count; | |
2002 | for (; rel < relend; rel++) | |
2003 | { | |
2004 | int r_type; | |
2005 | reloc_howto_type *howto; | |
2006 | unsigned long r_symndx; | |
2007 | Elf_Internal_Sym *sym; | |
2008 | asection *sec; | |
2009 | struct elf32_mn10300_link_hash_entry *h; | |
2010 | bfd_vma relocation; | |
2011 | bfd_reloc_status_type r; | |
0a22ae8e NC |
2012 | int tls_r_type; |
2013 | bfd_boolean unresolved_reloc = FALSE; | |
2014 | bfd_boolean warned; | |
2015 | struct elf_link_hash_entry * hh; | |
252b5132 | 2016 | |
0a22ae8e | 2017 | relocation = 0; |
252b5132 RH |
2018 | r_symndx = ELF32_R_SYM (rel->r_info); |
2019 | r_type = ELF32_R_TYPE (rel->r_info); | |
2020 | howto = elf_mn10300_howto_table + r_type; | |
2021 | ||
2022 | /* Just skip the vtable gc relocs. */ | |
2023 | if (r_type == R_MN10300_GNU_VTINHERIT | |
2024 | || r_type == R_MN10300_GNU_VTENTRY) | |
2025 | continue; | |
2026 | ||
252b5132 RH |
2027 | h = NULL; |
2028 | sym = NULL; | |
2029 | sec = NULL; | |
2030 | if (r_symndx < symtab_hdr->sh_info) | |
0a22ae8e | 2031 | hh = NULL; |
252b5132 RH |
2032 | else |
2033 | { | |
b2a8e766 AM |
2034 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2035 | r_symndx, symtab_hdr, sym_hashes, | |
2036 | hh, sec, relocation, | |
2037 | unresolved_reloc, warned); | |
0a22ae8e NC |
2038 | } |
2039 | h = elf_mn10300_hash_entry (hh); | |
560e09e9 | 2040 | |
0a22ae8e NC |
2041 | tls_r_type = elf_mn10300_tls_transition (info, r_type, hh, input_section, 0); |
2042 | if (tls_r_type != r_type) | |
2043 | { | |
2044 | bfd_boolean had_plt; | |
2045 | ||
2046 | had_plt = mn10300_do_tls_transition (input_bfd, r_type, tls_r_type, | |
2047 | contents, rel->r_offset); | |
2048 | r_type = tls_r_type; | |
2049 | howto = elf_mn10300_howto_table + r_type; | |
2050 | ||
2051 | if (had_plt) | |
2052 | for (trel = rel+1; trel < relend; trel++) | |
2053 | if ((ELF32_R_TYPE (trel->r_info) == R_MN10300_PLT32 | |
2054 | || ELF32_R_TYPE (trel->r_info) == R_MN10300_PCREL32) | |
2055 | && rel->r_offset + had_plt == trel->r_offset) | |
2056 | trel->r_info = ELF32_R_INFO (0, R_MN10300_NONE); | |
2057 | } | |
560e09e9 | 2058 | |
0a22ae8e NC |
2059 | if (r_symndx < symtab_hdr->sh_info) |
2060 | { | |
2061 | sym = local_syms + r_symndx; | |
2062 | sec = local_sections[r_symndx]; | |
2063 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
2064 | } | |
2065 | else | |
2066 | { | |
560e09e9 | 2067 | if ((h->root.root.type == bfd_link_hash_defined |
252b5132 | 2068 | || h->root.root.type == bfd_link_hash_defweak) |
560e09e9 | 2069 | && ( r_type == R_MN10300_GOTPC32 |
03a12831 AO |
2070 | || r_type == R_MN10300_GOTPC16 |
2071 | || (( r_type == R_MN10300_PLT32 | |
2072 | || r_type == R_MN10300_PLT16) | |
2073 | && ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL | |
2074 | && ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN | |
2075 | && h->root.plt.offset != (bfd_vma) -1) | |
2076 | || (( r_type == R_MN10300_GOT32 | |
2077 | || r_type == R_MN10300_GOT24 | |
0a22ae8e NC |
2078 | || r_type == R_MN10300_TLS_GD |
2079 | || r_type == R_MN10300_TLS_LD | |
2080 | || r_type == R_MN10300_TLS_GOTIE | |
2081 | || r_type == R_MN10300_TLS_IE | |
03a12831 AO |
2082 | || r_type == R_MN10300_GOT16) |
2083 | && elf_hash_table (info)->dynamic_sections_created | |
7e2294f9 | 2084 | && !SYMBOL_REFERENCES_LOCAL (info, hh)) |
146ccdbb | 2085 | || (r_type == R_MN10300_32 |
bfff1642 NC |
2086 | /* _32 relocs in executables force _COPY relocs, |
2087 | such that the address of the symbol ends up | |
2088 | being local. */ | |
efde2f2c | 2089 | && !info->executable |
7e2294f9 | 2090 | && !SYMBOL_REFERENCES_LOCAL (info, hh) |
03a12831 AO |
2091 | && ((input_section->flags & SEC_ALLOC) != 0 |
2092 | /* DWARF will emit R_MN10300_32 relocations | |
2093 | in its sections against symbols defined | |
2094 | externally in shared libraries. We can't | |
2095 | do anything with them here. */ | |
2096 | || ((input_section->flags & SEC_DEBUGGING) != 0 | |
f5385ebf | 2097 | && h->root.def_dynamic))))) |
560e09e9 NC |
2098 | /* In these cases, we don't need the relocation |
2099 | value. We check specially because in some | |
2100 | obscure cases sec->output_section will be NULL. */ | |
03a12831 | 2101 | relocation = 0; |
560e09e9 | 2102 | |
1d5316ab AM |
2103 | else if (!info->relocatable && unresolved_reloc |
2104 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
2105 | rel->r_offset) != (bfd_vma) -1) | |
2106 | ||
560e09e9 | 2107 | (*_bfd_error_handler) |
843fe662 L |
2108 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
2109 | input_bfd, | |
2110 | input_section, | |
2111 | (long) rel->r_offset, | |
2112 | howto->name, | |
2113 | h->root.root.root.string); | |
252b5132 RH |
2114 | } |
2115 | ||
dbaa2011 | 2116 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 2117 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 2118 | rel, 1, relend, howto, 0, contents); |
ab96bf03 AM |
2119 | |
2120 | if (info->relocatable) | |
2121 | continue; | |
2122 | ||
252b5132 RH |
2123 | r = mn10300_elf_final_link_relocate (howto, input_bfd, output_bfd, |
2124 | input_section, | |
2125 | contents, rel->r_offset, | |
2126 | relocation, rel->r_addend, | |
603b7257 | 2127 | (struct elf_link_hash_entry *) h, |
03a12831 | 2128 | r_symndx, |
252b5132 RH |
2129 | info, sec, h == NULL); |
2130 | ||
2131 | if (r != bfd_reloc_ok) | |
2132 | { | |
2133 | const char *name; | |
603b7257 | 2134 | const char *msg = NULL; |
252b5132 RH |
2135 | |
2136 | if (h != NULL) | |
2137 | name = h->root.root.root.string; | |
2138 | else | |
2139 | { | |
2140 | name = (bfd_elf_string_from_elf_section | |
2141 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
2142 | if (name == NULL || *name == '\0') | |
2143 | name = bfd_section_name (input_bfd, sec); | |
2144 | } | |
2145 | ||
2146 | switch (r) | |
2147 | { | |
2148 | case bfd_reloc_overflow: | |
2149 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
2150 | (info, (h ? &h->root.root : NULL), name, |
2151 | howto->name, (bfd_vma) 0, input_bfd, | |
2152 | input_section, rel->r_offset))) | |
b34976b6 | 2153 | return FALSE; |
252b5132 RH |
2154 | break; |
2155 | ||
2156 | case bfd_reloc_undefined: | |
2157 | if (! ((*info->callbacks->undefined_symbol) | |
2158 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
2159 | rel->r_offset, TRUE))) |
2160 | return FALSE; | |
252b5132 RH |
2161 | break; |
2162 | ||
2163 | case bfd_reloc_outofrange: | |
2164 | msg = _("internal error: out of range error"); | |
2165 | goto common_error; | |
2166 | ||
2167 | case bfd_reloc_notsupported: | |
2168 | msg = _("internal error: unsupported relocation error"); | |
2169 | goto common_error; | |
2170 | ||
2171 | case bfd_reloc_dangerous: | |
c9b57b7e DD |
2172 | if (r_type == R_MN10300_PCREL32) |
2173 | msg = _("error: inappropriate relocation type for shared" | |
2174 | " library (did you forget -fpic?)"); | |
0a22ae8e NC |
2175 | else if (r_type == R_MN10300_GOT32) |
2176 | msg = _("%B: taking the address of protected function" | |
2177 | " '%s' cannot be done when making a shared library"); | |
c9b57b7e DD |
2178 | else |
2179 | msg = _("internal error: suspicious relocation type used" | |
2180 | " in shared library"); | |
252b5132 RH |
2181 | goto common_error; |
2182 | ||
2183 | default: | |
2184 | msg = _("internal error: unknown error"); | |
603b7257 | 2185 | /* Fall through. */ |
252b5132 RH |
2186 | |
2187 | common_error: | |
0a22ae8e NC |
2188 | _bfd_error_handler (msg, input_bfd, name); |
2189 | bfd_set_error (bfd_error_bad_value); | |
2190 | return FALSE; | |
252b5132 RH |
2191 | } |
2192 | } | |
2193 | } | |
2194 | ||
b34976b6 | 2195 | return TRUE; |
252b5132 RH |
2196 | } |
2197 | ||
2198 | /* Finish initializing one hash table entry. */ | |
603b7257 | 2199 | |
b34976b6 | 2200 | static bfd_boolean |
603b7257 NC |
2201 | elf32_mn10300_finish_hash_table_entry (struct bfd_hash_entry *gen_entry, |
2202 | void * in_args) | |
252b5132 RH |
2203 | { |
2204 | struct elf32_mn10300_link_hash_entry *entry; | |
603b7257 | 2205 | struct bfd_link_info *link_info = (struct bfd_link_info *) in_args; |
252b5132 RH |
2206 | unsigned int byte_count = 0; |
2207 | ||
010ac81f | 2208 | entry = (struct elf32_mn10300_link_hash_entry *) gen_entry; |
252b5132 RH |
2209 | |
2210 | /* If we already know we want to convert "call" to "calls" for calls | |
2211 | to this symbol, then return now. */ | |
2212 | if (entry->flags == MN10300_CONVERT_CALL_TO_CALLS) | |
b34976b6 | 2213 | return TRUE; |
252b5132 RH |
2214 | |
2215 | /* If there are no named calls to this symbol, or there's nothing we | |
1055df0f AO |
2216 | can move from the function itself into the "call" instruction, |
2217 | then note that all "call" instructions should be converted into | |
2218 | "calls" instructions and return. If a symbol is available for | |
2219 | dynamic symbol resolution (overridable or overriding), avoid | |
2220 | custom calling conventions. */ | |
252b5132 | 2221 | if (entry->direct_calls == 0 |
1055df0f AO |
2222 | || (entry->stack_size == 0 && entry->movm_args == 0) |
2223 | || (elf_hash_table (link_info)->dynamic_sections_created | |
2224 | && ELF_ST_VISIBILITY (entry->root.other) != STV_INTERNAL | |
2225 | && ELF_ST_VISIBILITY (entry->root.other) != STV_HIDDEN)) | |
252b5132 RH |
2226 | { |
2227 | /* Make a note that we should convert "call" instructions to "calls" | |
2228 | instructions for calls to this symbol. */ | |
2229 | entry->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
b34976b6 | 2230 | return TRUE; |
252b5132 RH |
2231 | } |
2232 | ||
2233 | /* We may be able to move some instructions from the function itself into | |
2234 | the "call" instruction. Count how many bytes we might be able to | |
2235 | eliminate in the function itself. */ | |
2236 | ||
2237 | /* A movm instruction is two bytes. */ | |
2238 | if (entry->movm_args) | |
2239 | byte_count += 2; | |
2240 | ||
2241 | /* Count the insn to allocate stack space too. */ | |
1a101a42 AM |
2242 | if (entry->stack_size > 0) |
2243 | { | |
2244 | if (entry->stack_size <= 128) | |
2245 | byte_count += 3; | |
2246 | else | |
2247 | byte_count += 4; | |
2248 | } | |
252b5132 RH |
2249 | |
2250 | /* If using "call" will result in larger code, then turn all | |
4cc11e76 | 2251 | the associated "call" instructions into "calls" instructions. */ |
252b5132 RH |
2252 | if (byte_count < entry->direct_calls) |
2253 | entry->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
2254 | ||
2255 | /* This routine never fails. */ | |
b34976b6 | 2256 | return TRUE; |
252b5132 RH |
2257 | } |
2258 | ||
eb13e63f | 2259 | /* Used to count hash table entries. */ |
603b7257 | 2260 | |
eb13e63f DD |
2261 | static bfd_boolean |
2262 | elf32_mn10300_count_hash_table_entries (struct bfd_hash_entry *gen_entry ATTRIBUTE_UNUSED, | |
603b7257 | 2263 | void * in_args) |
eb13e63f | 2264 | { |
bfff1642 | 2265 | int *count = (int *) in_args; |
eb13e63f DD |
2266 | |
2267 | (*count) ++; | |
2268 | return TRUE; | |
2269 | } | |
2270 | ||
2271 | /* Used to enumerate hash table entries into a linear array. */ | |
603b7257 | 2272 | |
eb13e63f DD |
2273 | static bfd_boolean |
2274 | elf32_mn10300_list_hash_table_entries (struct bfd_hash_entry *gen_entry, | |
603b7257 | 2275 | void * in_args) |
eb13e63f DD |
2276 | { |
2277 | struct bfd_hash_entry ***ptr = (struct bfd_hash_entry ***) in_args; | |
2278 | ||
2279 | **ptr = gen_entry; | |
2280 | (*ptr) ++; | |
2281 | return TRUE; | |
2282 | } | |
2283 | ||
2284 | /* Used to sort the array created by the above. */ | |
603b7257 | 2285 | |
eb13e63f DD |
2286 | static int |
2287 | sort_by_value (const void *va, const void *vb) | |
2288 | { | |
2289 | struct elf32_mn10300_link_hash_entry *a | |
bfff1642 | 2290 | = *(struct elf32_mn10300_link_hash_entry **) va; |
eb13e63f | 2291 | struct elf32_mn10300_link_hash_entry *b |
bfff1642 | 2292 | = *(struct elf32_mn10300_link_hash_entry **) vb; |
eb13e63f DD |
2293 | |
2294 | return a->value - b->value; | |
2295 | } | |
2296 | ||
603b7257 NC |
2297 | /* Compute the stack size and movm arguments for the function |
2298 | referred to by HASH at address ADDR in section with | |
2299 | contents CONTENTS, store the information in the hash table. */ | |
2300 | ||
2301 | static void | |
2302 | compute_function_info (bfd *abfd, | |
2303 | struct elf32_mn10300_link_hash_entry *hash, | |
2304 | bfd_vma addr, | |
2305 | unsigned char *contents) | |
2306 | { | |
2307 | unsigned char byte1, byte2; | |
2308 | /* We only care about a very small subset of the possible prologue | |
2309 | sequences here. Basically we look for: | |
2310 | ||
2311 | movm [d2,d3,a2,a3],sp (optional) | |
2312 | add <size>,sp (optional, and only for sizes which fit in an unsigned | |
2313 | 8 bit number) | |
2314 | ||
2315 | If we find anything else, we quit. */ | |
2316 | ||
2317 | /* Look for movm [regs],sp. */ | |
2318 | byte1 = bfd_get_8 (abfd, contents + addr); | |
2319 | byte2 = bfd_get_8 (abfd, contents + addr + 1); | |
2320 | ||
2321 | if (byte1 == 0xcf) | |
2322 | { | |
2323 | hash->movm_args = byte2; | |
2324 | addr += 2; | |
2325 | byte1 = bfd_get_8 (abfd, contents + addr); | |
2326 | byte2 = bfd_get_8 (abfd, contents + addr + 1); | |
2327 | } | |
2328 | ||
2329 | /* Now figure out how much stack space will be allocated by the movm | |
2330 | instruction. We need this kept separate from the function's normal | |
2331 | stack space. */ | |
2332 | if (hash->movm_args) | |
2333 | { | |
2334 | /* Space for d2. */ | |
2335 | if (hash->movm_args & 0x80) | |
2336 | hash->movm_stack_size += 4; | |
2337 | ||
2338 | /* Space for d3. */ | |
2339 | if (hash->movm_args & 0x40) | |
2340 | hash->movm_stack_size += 4; | |
2341 | ||
2342 | /* Space for a2. */ | |
2343 | if (hash->movm_args & 0x20) | |
2344 | hash->movm_stack_size += 4; | |
2345 | ||
2346 | /* Space for a3. */ | |
2347 | if (hash->movm_args & 0x10) | |
2348 | hash->movm_stack_size += 4; | |
2349 | ||
2350 | /* "other" space. d0, d1, a0, a1, mdr, lir, lar, 4 byte pad. */ | |
2351 | if (hash->movm_args & 0x08) | |
2352 | hash->movm_stack_size += 8 * 4; | |
2353 | ||
2354 | if (bfd_get_mach (abfd) == bfd_mach_am33 | |
2355 | || bfd_get_mach (abfd) == bfd_mach_am33_2) | |
2356 | { | |
2357 | /* "exother" space. e0, e1, mdrq, mcrh, mcrl, mcvf */ | |
2358 | if (hash->movm_args & 0x1) | |
2359 | hash->movm_stack_size += 6 * 4; | |
2360 | ||
2361 | /* exreg1 space. e4, e5, e6, e7 */ | |
2362 | if (hash->movm_args & 0x2) | |
2363 | hash->movm_stack_size += 4 * 4; | |
2364 | ||
2365 | /* exreg0 space. e2, e3 */ | |
2366 | if (hash->movm_args & 0x4) | |
2367 | hash->movm_stack_size += 2 * 4; | |
2368 | } | |
2369 | } | |
2370 | ||
2371 | /* Now look for the two stack adjustment variants. */ | |
2372 | if (byte1 == 0xf8 && byte2 == 0xfe) | |
2373 | { | |
2374 | int temp = bfd_get_8 (abfd, contents + addr + 2); | |
2375 | temp = ((temp & 0xff) ^ (~0x7f)) + 0x80; | |
2376 | ||
2377 | hash->stack_size = -temp; | |
2378 | } | |
2379 | else if (byte1 == 0xfa && byte2 == 0xfe) | |
2380 | { | |
2381 | int temp = bfd_get_16 (abfd, contents + addr + 2); | |
2382 | temp = ((temp & 0xffff) ^ (~0x7fff)) + 0x8000; | |
2383 | temp = -temp; | |
2384 | ||
2385 | if (temp < 255) | |
2386 | hash->stack_size = temp; | |
2387 | } | |
2388 | ||
2389 | /* If the total stack to be allocated by the call instruction is more | |
2390 | than 255 bytes, then we can't remove the stack adjustment by using | |
2391 | "call" (we might still be able to remove the "movm" instruction. */ | |
2392 | if (hash->stack_size + hash->movm_stack_size > 255) | |
2393 | hash->stack_size = 0; | |
2394 | } | |
2395 | ||
2396 | /* Delete some bytes from a section while relaxing. */ | |
2397 | ||
2398 | static bfd_boolean | |
2399 | mn10300_elf_relax_delete_bytes (bfd *abfd, | |
2400 | asection *sec, | |
2401 | bfd_vma addr, | |
2402 | int count) | |
2403 | { | |
2404 | Elf_Internal_Shdr *symtab_hdr; | |
2405 | unsigned int sec_shndx; | |
2406 | bfd_byte *contents; | |
2407 | Elf_Internal_Rela *irel, *irelend; | |
2408 | Elf_Internal_Rela *irelalign; | |
2409 | bfd_vma toaddr; | |
2410 | Elf_Internal_Sym *isym, *isymend; | |
2411 | struct elf_link_hash_entry **sym_hashes; | |
2412 | struct elf_link_hash_entry **end_hashes; | |
2413 | unsigned int symcount; | |
2414 | ||
2415 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
2416 | ||
2417 | contents = elf_section_data (sec)->this_hdr.contents; | |
2418 | ||
603b7257 NC |
2419 | irelalign = NULL; |
2420 | toaddr = sec->size; | |
2421 | ||
2422 | irel = elf_section_data (sec)->relocs; | |
2423 | irelend = irel + sec->reloc_count; | |
2424 | ||
cf4a529b NC |
2425 | if (sec->reloc_count > 0) |
2426 | { | |
2427 | /* If there is an align reloc at the end of the section ignore it. | |
2428 | GAS creates these relocs for reasons of its own, and they just | |
2429 | serve to keep the section artifically inflated. */ | |
2430 | if (ELF32_R_TYPE ((irelend - 1)->r_info) == (int) R_MN10300_ALIGN) | |
2431 | --irelend; | |
68ffbac6 | 2432 | |
cf4a529b | 2433 | /* The deletion must stop at the next ALIGN reloc for an aligment |
b5f5fd96 NC |
2434 | power larger than, or not a multiple of, the number of bytes we |
2435 | are deleting. */ | |
cf4a529b | 2436 | for (; irel < irelend; irel++) |
b5f5fd96 NC |
2437 | { |
2438 | int alignment = 1 << irel->r_addend; | |
2439 | ||
2440 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN | |
2441 | && irel->r_offset > addr | |
2442 | && irel->r_offset < toaddr | |
2443 | && (count < alignment | |
2444 | || alignment % count != 0)) | |
2445 | { | |
2446 | irelalign = irel; | |
2447 | toaddr = irel->r_offset; | |
2448 | break; | |
2449 | } | |
2450 | } | |
cf4a529b | 2451 | } |
569006e5 | 2452 | |
603b7257 NC |
2453 | /* Actually delete the bytes. */ |
2454 | memmove (contents + addr, contents + addr + count, | |
2455 | (size_t) (toaddr - addr - count)); | |
569006e5 NC |
2456 | |
2457 | /* Adjust the section's size if we are shrinking it, or else | |
2458 | pad the bytes between the end of the shrunken region and | |
2459 | the start of the next region with NOP codes. */ | |
2460 | if (irelalign == NULL) | |
2461 | { | |
2462 | sec->size -= count; | |
2463 | /* Include symbols at the end of the section, but | |
2464 | not at the end of a sub-region of the section. */ | |
2465 | toaddr ++; | |
2466 | } | |
2467 | else | |
2468 | { | |
2469 | int i; | |
2470 | ||
2471 | #define NOP_OPCODE 0xcb | |
2472 | ||
2473 | for (i = 0; i < count; i ++) | |
2474 | bfd_put_8 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i); | |
2475 | } | |
603b7257 NC |
2476 | |
2477 | /* Adjust all the relocs. */ | |
2478 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
2479 | { | |
2480 | /* Get the new reloc address. */ | |
2481 | if ((irel->r_offset > addr | |
b5f5fd96 NC |
2482 | && irel->r_offset < toaddr) |
2483 | || (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN | |
2484 | && irel->r_offset == toaddr)) | |
603b7257 NC |
2485 | irel->r_offset -= count; |
2486 | } | |
2487 | ||
b5f5fd96 NC |
2488 | /* Adjust the local symbols in the section, reducing their value |
2489 | by the number of bytes deleted. Note - symbols within the deleted | |
2490 | region are moved to the address of the start of the region, which | |
2491 | actually means that they will address the byte beyond the end of | |
2492 | the region once the deletion has been completed. */ | |
603b7257 NC |
2493 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
2494 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
2495 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
2496 | { | |
2497 | if (isym->st_shndx == sec_shndx | |
2498 | && isym->st_value > addr | |
569006e5 | 2499 | && isym->st_value < toaddr) |
b5f5fd96 NC |
2500 | { |
2501 | if (isym->st_value < addr + count) | |
2502 | isym->st_value = addr; | |
2503 | else | |
2504 | isym->st_value -= count; | |
2505 | } | |
bfff1642 NC |
2506 | /* Adjust the function symbol's size as well. */ |
2507 | else if (isym->st_shndx == sec_shndx | |
2508 | && ELF_ST_TYPE (isym->st_info) == STT_FUNC | |
2509 | && isym->st_value + isym->st_size > addr | |
569006e5 | 2510 | && isym->st_value + isym->st_size < toaddr) |
bfff1642 | 2511 | isym->st_size -= count; |
603b7257 NC |
2512 | } |
2513 | ||
2514 | /* Now adjust the global symbols defined in this section. */ | |
2515 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2516 | - symtab_hdr->sh_info); | |
2517 | sym_hashes = elf_sym_hashes (abfd); | |
2518 | end_hashes = sym_hashes + symcount; | |
2519 | for (; sym_hashes < end_hashes; sym_hashes++) | |
2520 | { | |
2521 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
2522 | ||
2523 | if ((sym_hash->root.type == bfd_link_hash_defined | |
2524 | || sym_hash->root.type == bfd_link_hash_defweak) | |
2525 | && sym_hash->root.u.def.section == sec | |
2526 | && sym_hash->root.u.def.value > addr | |
569006e5 | 2527 | && sym_hash->root.u.def.value < toaddr) |
b5f5fd96 NC |
2528 | { |
2529 | if (sym_hash->root.u.def.value < addr + count) | |
2530 | sym_hash->root.u.def.value = addr; | |
2531 | else | |
2532 | sym_hash->root.u.def.value -= count; | |
2533 | } | |
bfff1642 NC |
2534 | /* Adjust the function symbol's size as well. */ |
2535 | else if (sym_hash->root.type == bfd_link_hash_defined | |
2536 | && sym_hash->root.u.def.section == sec | |
2537 | && sym_hash->type == STT_FUNC | |
2538 | && sym_hash->root.u.def.value + sym_hash->size > addr | |
569006e5 | 2539 | && sym_hash->root.u.def.value + sym_hash->size < toaddr) |
bfff1642 | 2540 | sym_hash->size -= count; |
603b7257 NC |
2541 | } |
2542 | ||
b5f5fd96 NC |
2543 | /* See if we can move the ALIGN reloc forward. |
2544 | We have adjusted r_offset for it already. */ | |
2545 | if (irelalign != NULL) | |
2546 | { | |
2547 | bfd_vma alignto, alignaddr; | |
2548 | ||
2549 | if ((int) irelalign->r_addend > 0) | |
2550 | { | |
2551 | /* This is the old address. */ | |
2552 | alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend); | |
2553 | /* This is where the align points to now. */ | |
2554 | alignaddr = BFD_ALIGN (irelalign->r_offset, | |
2555 | 1 << irelalign->r_addend); | |
2556 | if (alignaddr < alignto) | |
2557 | /* Tail recursion. */ | |
2558 | return mn10300_elf_relax_delete_bytes (abfd, sec, alignaddr, | |
2559 | (int) (alignto - alignaddr)); | |
2560 | } | |
2561 | } | |
2562 | ||
603b7257 NC |
2563 | return TRUE; |
2564 | } | |
2565 | ||
2566 | /* Return TRUE if a symbol exists at the given address, else return | |
2567 | FALSE. */ | |
2568 | ||
2569 | static bfd_boolean | |
2570 | mn10300_elf_symbol_address_p (bfd *abfd, | |
2571 | asection *sec, | |
2572 | Elf_Internal_Sym *isym, | |
2573 | bfd_vma addr) | |
2574 | { | |
2575 | Elf_Internal_Shdr *symtab_hdr; | |
2576 | unsigned int sec_shndx; | |
2577 | Elf_Internal_Sym *isymend; | |
2578 | struct elf_link_hash_entry **sym_hashes; | |
2579 | struct elf_link_hash_entry **end_hashes; | |
2580 | unsigned int symcount; | |
2581 | ||
2582 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
2583 | ||
2584 | /* Examine all the symbols. */ | |
2585 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2586 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) | |
2587 | if (isym->st_shndx == sec_shndx | |
2588 | && isym->st_value == addr) | |
2589 | return TRUE; | |
2590 | ||
2591 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2592 | - symtab_hdr->sh_info); | |
2593 | sym_hashes = elf_sym_hashes (abfd); | |
2594 | end_hashes = sym_hashes + symcount; | |
2595 | for (; sym_hashes < end_hashes; sym_hashes++) | |
2596 | { | |
2597 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
2598 | ||
2599 | if ((sym_hash->root.type == bfd_link_hash_defined | |
2600 | || sym_hash->root.type == bfd_link_hash_defweak) | |
2601 | && sym_hash->root.u.def.section == sec | |
2602 | && sym_hash->root.u.def.value == addr) | |
2603 | return TRUE; | |
2604 | } | |
2605 | ||
2606 | return FALSE; | |
2607 | } | |
eb13e63f | 2608 | |
252b5132 RH |
2609 | /* This function handles relaxing for the mn10300. |
2610 | ||
4cc11e76 | 2611 | There are quite a few relaxing opportunities available on the mn10300: |
252b5132 RH |
2612 | |
2613 | * calls:32 -> calls:16 2 bytes | |
2614 | * call:32 -> call:16 2 bytes | |
2615 | ||
2616 | * call:32 -> calls:32 1 byte | |
2617 | * call:16 -> calls:16 1 byte | |
2618 | * These are done anytime using "calls" would result | |
2619 | in smaller code, or when necessary to preserve the | |
2620 | meaning of the program. | |
2621 | ||
2622 | * call:32 varies | |
2623 | * call:16 | |
2624 | * In some circumstances we can move instructions | |
2625 | from a function prologue into a "call" instruction. | |
2626 | This is only done if the resulting code is no larger | |
2627 | than the original code. | |
2628 | ||
252b5132 RH |
2629 | * jmp:32 -> jmp:16 2 bytes |
2630 | * jmp:16 -> bra:8 1 byte | |
2631 | ||
2632 | * If the previous instruction is a conditional branch | |
2633 | around the jump/bra, we may be able to reverse its condition | |
2634 | and change its target to the jump's target. The jump/bra | |
2635 | can then be deleted. 2 bytes | |
2636 | ||
2637 | * mov abs32 -> mov abs16 1 or 2 bytes | |
2638 | ||
2639 | * Most instructions which accept imm32 can relax to imm16 1 or 2 bytes | |
2640 | - Most instructions which accept imm16 can relax to imm8 1 or 2 bytes | |
2641 | ||
2642 | * Most instructions which accept d32 can relax to d16 1 or 2 bytes | |
2643 | - Most instructions which accept d16 can relax to d8 1 or 2 bytes | |
2644 | ||
2645 | We don't handle imm16->imm8 or d16->d8 as they're very rare | |
2646 | and somewhat more difficult to support. */ | |
2647 | ||
b34976b6 | 2648 | static bfd_boolean |
603b7257 NC |
2649 | mn10300_elf_relax_section (bfd *abfd, |
2650 | asection *sec, | |
2651 | struct bfd_link_info *link_info, | |
2652 | bfd_boolean *again) | |
252b5132 RH |
2653 | { |
2654 | Elf_Internal_Shdr *symtab_hdr; | |
2655 | Elf_Internal_Rela *internal_relocs = NULL; | |
252b5132 RH |
2656 | Elf_Internal_Rela *irel, *irelend; |
2657 | bfd_byte *contents = NULL; | |
6cdc0ccc | 2658 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 | 2659 | struct elf32_mn10300_link_hash_table *hash_table; |
6cdc0ccc | 2660 | asection *section = sec; |
fc91707c | 2661 | bfd_vma align_gap_adjustment; |
252b5132 | 2662 | |
c8a1f254 NS |
2663 | if (link_info->relocatable) |
2664 | (*link_info->callbacks->einfo) | |
2665 | (_("%P%F: --relax and -r may not be used together\n")); | |
2666 | ||
252b5132 | 2667 | /* Assume nothing changes. */ |
b34976b6 | 2668 | *again = FALSE; |
252b5132 RH |
2669 | |
2670 | /* We need a pointer to the mn10300 specific hash table. */ | |
2671 | hash_table = elf32_mn10300_hash_table (link_info); | |
4dfe6ac6 NC |
2672 | if (hash_table == NULL) |
2673 | return FALSE; | |
252b5132 RH |
2674 | |
2675 | /* Initialize fields in each hash table entry the first time through. */ | |
2676 | if ((hash_table->flags & MN10300_HASH_ENTRIES_INITIALIZED) == 0) | |
2677 | { | |
2678 | bfd *input_bfd; | |
2679 | ||
2680 | /* Iterate over all the input bfds. */ | |
2681 | for (input_bfd = link_info->input_bfds; | |
2682 | input_bfd != NULL; | |
2683 | input_bfd = input_bfd->link_next) | |
2684 | { | |
252b5132 RH |
2685 | /* We're going to need all the symbols for each bfd. */ |
2686 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
6cdc0ccc | 2687 | if (symtab_hdr->sh_info != 0) |
9ad5cbcf | 2688 | { |
6cdc0ccc AM |
2689 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
2690 | if (isymbuf == NULL) | |
2691 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
2692 | symtab_hdr->sh_info, 0, | |
2693 | NULL, NULL, NULL); | |
2694 | if (isymbuf == NULL) | |
010ac81f KH |
2695 | goto error_return; |
2696 | } | |
252b5132 RH |
2697 | |
2698 | /* Iterate over each section in this bfd. */ | |
2699 | for (section = input_bfd->sections; | |
2700 | section != NULL; | |
2701 | section = section->next) | |
2702 | { | |
2703 | struct elf32_mn10300_link_hash_entry *hash; | |
86033394 | 2704 | asection *sym_sec = NULL; |
252b5132 RH |
2705 | const char *sym_name; |
2706 | char *new_name; | |
252b5132 | 2707 | |
e948afaf | 2708 | /* If there's nothing to do in this section, skip it. */ |
eb13e63f DD |
2709 | if (! ((section->flags & SEC_RELOC) != 0 |
2710 | && section->reloc_count != 0)) | |
2711 | continue; | |
2712 | if ((section->flags & SEC_ALLOC) == 0) | |
e948afaf AO |
2713 | continue; |
2714 | ||
252b5132 RH |
2715 | /* Get cached copy of section contents if it exists. */ |
2716 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
2717 | contents = elf_section_data (section)->this_hdr.contents; | |
eea6121a | 2718 | else if (section->size != 0) |
252b5132 RH |
2719 | { |
2720 | /* Go get them off disk. */ | |
eea6121a AM |
2721 | if (!bfd_malloc_and_get_section (input_bfd, section, |
2722 | &contents)) | |
252b5132 RH |
2723 | goto error_return; |
2724 | } | |
2725 | else | |
6cdc0ccc | 2726 | contents = NULL; |
252b5132 RH |
2727 | |
2728 | /* If there aren't any relocs, then there's nothing to do. */ | |
2729 | if ((section->flags & SEC_RELOC) != 0 | |
2730 | && section->reloc_count != 0) | |
2731 | { | |
252b5132 | 2732 | /* Get a copy of the native relocations. */ |
603b7257 NC |
2733 | internal_relocs = _bfd_elf_link_read_relocs (input_bfd, section, |
2734 | NULL, NULL, | |
2735 | link_info->keep_memory); | |
252b5132 RH |
2736 | if (internal_relocs == NULL) |
2737 | goto error_return; | |
252b5132 RH |
2738 | |
2739 | /* Now examine each relocation. */ | |
2740 | irel = internal_relocs; | |
2741 | irelend = irel + section->reloc_count; | |
2742 | for (; irel < irelend; irel++) | |
2743 | { | |
2744 | long r_type; | |
2745 | unsigned long r_index; | |
2746 | unsigned char code; | |
2747 | ||
2748 | r_type = ELF32_R_TYPE (irel->r_info); | |
2749 | r_index = ELF32_R_SYM (irel->r_info); | |
2750 | ||
010ac81f | 2751 | if (r_type < 0 || r_type >= (int) R_MN10300_MAX) |
252b5132 RH |
2752 | goto error_return; |
2753 | ||
2754 | /* We need the name and hash table entry of the target | |
2755 | symbol! */ | |
2756 | hash = NULL; | |
252b5132 RH |
2757 | sym_sec = NULL; |
2758 | ||
2759 | if (r_index < symtab_hdr->sh_info) | |
2760 | { | |
2761 | /* A local symbol. */ | |
6cdc0ccc | 2762 | Elf_Internal_Sym *isym; |
dc810e39 AM |
2763 | struct elf_link_hash_table *elftab; |
2764 | bfd_size_type amt; | |
252b5132 | 2765 | |
6cdc0ccc AM |
2766 | isym = isymbuf + r_index; |
2767 | if (isym->st_shndx == SHN_UNDEF) | |
252b5132 | 2768 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 2769 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 2770 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 2771 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 2772 | sym_sec = bfd_com_section_ptr; |
9ad5cbcf AM |
2773 | else |
2774 | sym_sec | |
2775 | = bfd_section_from_elf_index (input_bfd, | |
6cdc0ccc | 2776 | isym->st_shndx); |
a7c10850 | 2777 | |
9ad5cbcf AM |
2778 | sym_name |
2779 | = bfd_elf_string_from_elf_section (input_bfd, | |
2780 | (symtab_hdr | |
2781 | ->sh_link), | |
6cdc0ccc | 2782 | isym->st_name); |
252b5132 RH |
2783 | |
2784 | /* If it isn't a function, then we don't care | |
2785 | about it. */ | |
6cdc0ccc | 2786 | if (ELF_ST_TYPE (isym->st_info) != STT_FUNC) |
252b5132 RH |
2787 | continue; |
2788 | ||
2789 | /* Tack on an ID so we can uniquely identify this | |
2790 | local symbol in the global hash table. */ | |
dc810e39 AM |
2791 | amt = strlen (sym_name) + 10; |
2792 | new_name = bfd_malloc (amt); | |
bfff1642 | 2793 | if (new_name == NULL) |
252b5132 RH |
2794 | goto error_return; |
2795 | ||
f60ca5e3 | 2796 | sprintf (new_name, "%s_%08x", sym_name, sym_sec->id); |
252b5132 RH |
2797 | sym_name = new_name; |
2798 | ||
dc810e39 AM |
2799 | elftab = &hash_table->static_hash_table->root; |
2800 | hash = ((struct elf32_mn10300_link_hash_entry *) | |
2801 | elf_link_hash_lookup (elftab, sym_name, | |
b34976b6 | 2802 | TRUE, TRUE, FALSE)); |
252b5132 RH |
2803 | free (new_name); |
2804 | } | |
2805 | else | |
2806 | { | |
2807 | r_index -= symtab_hdr->sh_info; | |
2808 | hash = (struct elf32_mn10300_link_hash_entry *) | |
2809 | elf_sym_hashes (input_bfd)[r_index]; | |
2810 | } | |
2811 | ||
eb13e63f DD |
2812 | sym_name = hash->root.root.root.string; |
2813 | if ((section->flags & SEC_CODE) != 0) | |
2814 | { | |
2815 | /* If this is not a "call" instruction, then we | |
2816 | should convert "call" instructions to "calls" | |
2817 | instructions. */ | |
2818 | code = bfd_get_8 (input_bfd, | |
2819 | contents + irel->r_offset - 1); | |
2820 | if (code != 0xdd && code != 0xcd) | |
2821 | hash->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
2822 | } | |
252b5132 | 2823 | |
6cdc0ccc AM |
2824 | /* If this is a jump/call, then bump the |
2825 | direct_calls counter. Else force "call" to | |
2826 | "calls" conversions. */ | |
252b5132 | 2827 | if (r_type == R_MN10300_PCREL32 |
03a12831 AO |
2828 | || r_type == R_MN10300_PLT32 |
2829 | || r_type == R_MN10300_PLT16 | |
252b5132 RH |
2830 | || r_type == R_MN10300_PCREL16) |
2831 | hash->direct_calls++; | |
2832 | else | |
2833 | hash->flags |= MN10300_CONVERT_CALL_TO_CALLS; | |
2834 | } | |
2835 | } | |
2836 | ||
2837 | /* Now look at the actual contents to get the stack size, | |
2838 | and a list of what registers were saved in the prologue | |
2839 | (ie movm_args). */ | |
2840 | if ((section->flags & SEC_CODE) != 0) | |
2841 | { | |
6cdc0ccc | 2842 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 2843 | unsigned int sec_shndx; |
6cdc0ccc AM |
2844 | struct elf_link_hash_entry **hashes; |
2845 | struct elf_link_hash_entry **end_hashes; | |
2846 | unsigned int symcount; | |
252b5132 | 2847 | |
9ad5cbcf AM |
2848 | sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd, |
2849 | section); | |
252b5132 | 2850 | |
1055df0f AO |
2851 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
2852 | - symtab_hdr->sh_info); | |
2853 | hashes = elf_sym_hashes (input_bfd); | |
2854 | end_hashes = hashes + symcount; | |
2855 | ||
252b5132 RH |
2856 | /* Look at each function defined in this section and |
2857 | update info for that function. */ | |
6cdc0ccc AM |
2858 | isymend = isymbuf + symtab_hdr->sh_info; |
2859 | for (isym = isymbuf; isym < isymend; isym++) | |
252b5132 | 2860 | { |
6cdc0ccc AM |
2861 | if (isym->st_shndx == sec_shndx |
2862 | && ELF_ST_TYPE (isym->st_info) == STT_FUNC) | |
252b5132 | 2863 | { |
dc810e39 AM |
2864 | struct elf_link_hash_table *elftab; |
2865 | bfd_size_type amt; | |
1055df0f AO |
2866 | struct elf_link_hash_entry **lhashes = hashes; |
2867 | ||
2868 | /* Skip a local symbol if it aliases a | |
2869 | global one. */ | |
2870 | for (; lhashes < end_hashes; lhashes++) | |
2871 | { | |
2872 | hash = (struct elf32_mn10300_link_hash_entry *) *lhashes; | |
2873 | if ((hash->root.root.type == bfd_link_hash_defined | |
2874 | || hash->root.root.type == bfd_link_hash_defweak) | |
2875 | && hash->root.root.u.def.section == section | |
2876 | && hash->root.type == STT_FUNC | |
2877 | && hash->root.root.u.def.value == isym->st_value) | |
2878 | break; | |
2879 | } | |
2880 | if (lhashes != end_hashes) | |
2881 | continue; | |
dc810e39 | 2882 | |
6cdc0ccc | 2883 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 2884 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 2885 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 2886 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 2887 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 2888 | sym_sec = bfd_com_section_ptr; |
9ad5cbcf AM |
2889 | else |
2890 | sym_sec | |
2891 | = bfd_section_from_elf_index (input_bfd, | |
6cdc0ccc | 2892 | isym->st_shndx); |
252b5132 | 2893 | |
dc810e39 AM |
2894 | sym_name = (bfd_elf_string_from_elf_section |
2895 | (input_bfd, symtab_hdr->sh_link, | |
6cdc0ccc | 2896 | isym->st_name)); |
252b5132 RH |
2897 | |
2898 | /* Tack on an ID so we can uniquely identify this | |
2899 | local symbol in the global hash table. */ | |
dc810e39 AM |
2900 | amt = strlen (sym_name) + 10; |
2901 | new_name = bfd_malloc (amt); | |
bfff1642 | 2902 | if (new_name == NULL) |
252b5132 RH |
2903 | goto error_return; |
2904 | ||
f60ca5e3 | 2905 | sprintf (new_name, "%s_%08x", sym_name, sym_sec->id); |
252b5132 RH |
2906 | sym_name = new_name; |
2907 | ||
dc810e39 AM |
2908 | elftab = &hash_table->static_hash_table->root; |
2909 | hash = ((struct elf32_mn10300_link_hash_entry *) | |
2910 | elf_link_hash_lookup (elftab, sym_name, | |
b34976b6 | 2911 | TRUE, TRUE, FALSE)); |
252b5132 RH |
2912 | free (new_name); |
2913 | compute_function_info (input_bfd, hash, | |
6cdc0ccc | 2914 | isym->st_value, contents); |
eb13e63f | 2915 | hash->value = isym->st_value; |
252b5132 RH |
2916 | } |
2917 | } | |
2918 | ||
6cdc0ccc | 2919 | for (; hashes < end_hashes; hashes++) |
252b5132 | 2920 | { |
6cdc0ccc | 2921 | hash = (struct elf32_mn10300_link_hash_entry *) *hashes; |
9ad5cbcf AM |
2922 | if ((hash->root.root.type == bfd_link_hash_defined |
2923 | || hash->root.root.type == bfd_link_hash_defweak) | |
2924 | && hash->root.root.u.def.section == section | |
9bb351fd | 2925 | && hash->root.type == STT_FUNC) |
252b5132 RH |
2926 | compute_function_info (input_bfd, hash, |
2927 | (hash)->root.root.u.def.value, | |
2928 | contents); | |
2929 | } | |
2930 | } | |
2931 | ||
2932 | /* Cache or free any memory we allocated for the relocs. */ | |
6cdc0ccc AM |
2933 | if (internal_relocs != NULL |
2934 | && elf_section_data (section)->relocs != internal_relocs) | |
2935 | free (internal_relocs); | |
2936 | internal_relocs = NULL; | |
252b5132 RH |
2937 | |
2938 | /* Cache or free any memory we allocated for the contents. */ | |
6cdc0ccc AM |
2939 | if (contents != NULL |
2940 | && elf_section_data (section)->this_hdr.contents != contents) | |
252b5132 RH |
2941 | { |
2942 | if (! link_info->keep_memory) | |
6cdc0ccc | 2943 | free (contents); |
252b5132 RH |
2944 | else |
2945 | { | |
2946 | /* Cache the section contents for elf_link_input_bfd. */ | |
2947 | elf_section_data (section)->this_hdr.contents = contents; | |
2948 | } | |
252b5132 | 2949 | } |
6cdc0ccc | 2950 | contents = NULL; |
9ad5cbcf AM |
2951 | } |
2952 | ||
252b5132 | 2953 | /* Cache or free any memory we allocated for the symbols. */ |
6cdc0ccc AM |
2954 | if (isymbuf != NULL |
2955 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
2956 | { |
2957 | if (! link_info->keep_memory) | |
6cdc0ccc | 2958 | free (isymbuf); |
252b5132 RH |
2959 | else |
2960 | { | |
2961 | /* Cache the symbols for elf_link_input_bfd. */ | |
6cdc0ccc | 2962 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 | 2963 | } |
252b5132 | 2964 | } |
6cdc0ccc | 2965 | isymbuf = NULL; |
252b5132 RH |
2966 | } |
2967 | ||
2968 | /* Now iterate on each symbol in the hash table and perform | |
2969 | the final initialization steps on each. */ | |
2970 | elf32_mn10300_link_hash_traverse (hash_table, | |
2971 | elf32_mn10300_finish_hash_table_entry, | |
1055df0f | 2972 | link_info); |
252b5132 RH |
2973 | elf32_mn10300_link_hash_traverse (hash_table->static_hash_table, |
2974 | elf32_mn10300_finish_hash_table_entry, | |
1055df0f | 2975 | link_info); |
252b5132 | 2976 | |
eb13e63f DD |
2977 | { |
2978 | /* This section of code collects all our local symbols, sorts | |
2979 | them by value, and looks for multiple symbols referring to | |
2980 | the same address. For those symbols, the flags are merged. | |
2981 | At this point, the only flag that can be set is | |
2982 | MN10300_CONVERT_CALL_TO_CALLS, so we simply OR the flags | |
2983 | together. */ | |
2984 | int static_count = 0, i; | |
2985 | struct elf32_mn10300_link_hash_entry **entries; | |
2986 | struct elf32_mn10300_link_hash_entry **ptr; | |
2987 | ||
2988 | elf32_mn10300_link_hash_traverse (hash_table->static_hash_table, | |
2989 | elf32_mn10300_count_hash_table_entries, | |
2990 | &static_count); | |
2991 | ||
603b7257 | 2992 | entries = bfd_malloc (static_count * sizeof (* ptr)); |
eb13e63f DD |
2993 | |
2994 | ptr = entries; | |
2995 | elf32_mn10300_link_hash_traverse (hash_table->static_hash_table, | |
2996 | elf32_mn10300_list_hash_table_entries, | |
603b7257 | 2997 | & ptr); |
eb13e63f | 2998 | |
603b7257 | 2999 | qsort (entries, static_count, sizeof (entries[0]), sort_by_value); |
eb13e63f | 3000 | |
603b7257 | 3001 | for (i = 0; i < static_count - 1; i++) |
eb13e63f DD |
3002 | if (entries[i]->value && entries[i]->value == entries[i+1]->value) |
3003 | { | |
3004 | int v = entries[i]->flags; | |
3005 | int j; | |
603b7257 NC |
3006 | |
3007 | for (j = i + 1; j < static_count && entries[j]->value == entries[i]->value; j++) | |
eb13e63f | 3008 | v |= entries[j]->flags; |
603b7257 NC |
3009 | |
3010 | for (j = i; j < static_count && entries[j]->value == entries[i]->value; j++) | |
eb13e63f | 3011 | entries[j]->flags = v; |
603b7257 NC |
3012 | |
3013 | i = j - 1; | |
eb13e63f DD |
3014 | } |
3015 | } | |
3016 | ||
252b5132 RH |
3017 | /* All entries in the hash table are fully initialized. */ |
3018 | hash_table->flags |= MN10300_HASH_ENTRIES_INITIALIZED; | |
3019 | ||
3020 | /* Now that everything has been initialized, go through each | |
3021 | code section and delete any prologue insns which will be | |
3022 | redundant because their operations will be performed by | |
3023 | a "call" instruction. */ | |
3024 | for (input_bfd = link_info->input_bfds; | |
3025 | input_bfd != NULL; | |
3026 | input_bfd = input_bfd->link_next) | |
3027 | { | |
9ad5cbcf | 3028 | /* We're going to need all the local symbols for each bfd. */ |
252b5132 | 3029 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
6cdc0ccc | 3030 | if (symtab_hdr->sh_info != 0) |
9ad5cbcf | 3031 | { |
6cdc0ccc AM |
3032 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
3033 | if (isymbuf == NULL) | |
3034 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
3035 | symtab_hdr->sh_info, 0, | |
3036 | NULL, NULL, NULL); | |
3037 | if (isymbuf == NULL) | |
9ad5cbcf | 3038 | goto error_return; |
010ac81f | 3039 | } |
252b5132 RH |
3040 | |
3041 | /* Walk over each section in this bfd. */ | |
3042 | for (section = input_bfd->sections; | |
3043 | section != NULL; | |
3044 | section = section->next) | |
3045 | { | |
9ad5cbcf | 3046 | unsigned int sec_shndx; |
6cdc0ccc AM |
3047 | Elf_Internal_Sym *isym, *isymend; |
3048 | struct elf_link_hash_entry **hashes; | |
3049 | struct elf_link_hash_entry **end_hashes; | |
3050 | unsigned int symcount; | |
252b5132 RH |
3051 | |
3052 | /* Skip non-code sections and empty sections. */ | |
eea6121a | 3053 | if ((section->flags & SEC_CODE) == 0 || section->size == 0) |
252b5132 RH |
3054 | continue; |
3055 | ||
3056 | if (section->reloc_count != 0) | |
3057 | { | |
010ac81f | 3058 | /* Get a copy of the native relocations. */ |
603b7257 NC |
3059 | internal_relocs = _bfd_elf_link_read_relocs (input_bfd, section, |
3060 | NULL, NULL, | |
3061 | link_info->keep_memory); | |
010ac81f KH |
3062 | if (internal_relocs == NULL) |
3063 | goto error_return; | |
252b5132 RH |
3064 | } |
3065 | ||
3066 | /* Get cached copy of section contents if it exists. */ | |
3067 | if (elf_section_data (section)->this_hdr.contents != NULL) | |
3068 | contents = elf_section_data (section)->this_hdr.contents; | |
3069 | else | |
3070 | { | |
3071 | /* Go get them off disk. */ | |
eea6121a AM |
3072 | if (!bfd_malloc_and_get_section (input_bfd, section, |
3073 | &contents)) | |
252b5132 RH |
3074 | goto error_return; |
3075 | } | |
3076 | ||
9ad5cbcf AM |
3077 | sec_shndx = _bfd_elf_section_from_bfd_section (input_bfd, |
3078 | section); | |
252b5132 RH |
3079 | |
3080 | /* Now look for any function in this section which needs | |
3081 | insns deleted from its prologue. */ | |
6cdc0ccc AM |
3082 | isymend = isymbuf + symtab_hdr->sh_info; |
3083 | for (isym = isymbuf; isym < isymend; isym++) | |
252b5132 | 3084 | { |
252b5132 | 3085 | struct elf32_mn10300_link_hash_entry *sym_hash; |
86033394 | 3086 | asection *sym_sec = NULL; |
252b5132 | 3087 | const char *sym_name; |
252b5132 | 3088 | char *new_name; |
dc810e39 AM |
3089 | struct elf_link_hash_table *elftab; |
3090 | bfd_size_type amt; | |
252b5132 | 3091 | |
6cdc0ccc | 3092 | if (isym->st_shndx != sec_shndx) |
252b5132 RH |
3093 | continue; |
3094 | ||
6cdc0ccc | 3095 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 3096 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 3097 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 3098 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 3099 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 3100 | sym_sec = bfd_com_section_ptr; |
86033394 | 3101 | else |
9ad5cbcf | 3102 | sym_sec |
6cdc0ccc | 3103 | = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
a7c10850 | 3104 | |
9ad5cbcf AM |
3105 | sym_name |
3106 | = bfd_elf_string_from_elf_section (input_bfd, | |
3107 | symtab_hdr->sh_link, | |
6cdc0ccc | 3108 | isym->st_name); |
252b5132 RH |
3109 | |
3110 | /* Tack on an ID so we can uniquely identify this | |
3111 | local symbol in the global hash table. */ | |
dc810e39 AM |
3112 | amt = strlen (sym_name) + 10; |
3113 | new_name = bfd_malloc (amt); | |
bfff1642 | 3114 | if (new_name == NULL) |
252b5132 | 3115 | goto error_return; |
f60ca5e3 | 3116 | sprintf (new_name, "%s_%08x", sym_name, sym_sec->id); |
252b5132 RH |
3117 | sym_name = new_name; |
3118 | ||
603b7257 NC |
3119 | elftab = & hash_table->static_hash_table->root; |
3120 | sym_hash = (struct elf32_mn10300_link_hash_entry *) | |
3121 | elf_link_hash_lookup (elftab, sym_name, | |
3122 | FALSE, FALSE, FALSE); | |
252b5132 RH |
3123 | |
3124 | free (new_name); | |
3125 | if (sym_hash == NULL) | |
3126 | continue; | |
3127 | ||
9ad5cbcf AM |
3128 | if (! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS) |
3129 | && ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES)) | |
252b5132 RH |
3130 | { |
3131 | int bytes = 0; | |
3132 | ||
3133 | /* Note that we've changed things. */ | |
3134 | elf_section_data (section)->relocs = internal_relocs; | |
252b5132 | 3135 | elf_section_data (section)->this_hdr.contents = contents; |
6cdc0ccc | 3136 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3137 | |
3138 | /* Count how many bytes we're going to delete. */ | |
3139 | if (sym_hash->movm_args) | |
3140 | bytes += 2; | |
3141 | ||
1a101a42 AM |
3142 | if (sym_hash->stack_size > 0) |
3143 | { | |
3144 | if (sym_hash->stack_size <= 128) | |
3145 | bytes += 3; | |
3146 | else | |
3147 | bytes += 4; | |
3148 | } | |
252b5132 RH |
3149 | |
3150 | /* Note that we've deleted prologue bytes for this | |
3151 | function. */ | |
3152 | sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES; | |
3153 | ||
3154 | /* Actually delete the bytes. */ | |
3155 | if (!mn10300_elf_relax_delete_bytes (input_bfd, | |
3156 | section, | |
6cdc0ccc | 3157 | isym->st_value, |
252b5132 RH |
3158 | bytes)) |
3159 | goto error_return; | |
3160 | ||
3161 | /* Something changed. Not strictly necessary, but | |
3162 | may lead to more relaxing opportunities. */ | |
b34976b6 | 3163 | *again = TRUE; |
252b5132 RH |
3164 | } |
3165 | } | |
3166 | ||
3167 | /* Look for any global functions in this section which | |
3168 | need insns deleted from their prologues. */ | |
6cdc0ccc | 3169 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
9ad5cbcf | 3170 | - symtab_hdr->sh_info); |
709e685d | 3171 | hashes = elf_sym_hashes (input_bfd); |
6cdc0ccc AM |
3172 | end_hashes = hashes + symcount; |
3173 | for (; hashes < end_hashes; hashes++) | |
252b5132 | 3174 | { |
252b5132 RH |
3175 | struct elf32_mn10300_link_hash_entry *sym_hash; |
3176 | ||
6cdc0ccc | 3177 | sym_hash = (struct elf32_mn10300_link_hash_entry *) *hashes; |
9ad5cbcf AM |
3178 | if ((sym_hash->root.root.type == bfd_link_hash_defined |
3179 | || sym_hash->root.root.type == bfd_link_hash_defweak) | |
3180 | && sym_hash->root.root.u.def.section == section | |
3181 | && ! (sym_hash->flags & MN10300_CONVERT_CALL_TO_CALLS) | |
3182 | && ! (sym_hash->flags & MN10300_DELETED_PROLOGUE_BYTES)) | |
252b5132 RH |
3183 | { |
3184 | int bytes = 0; | |
9ad5cbcf | 3185 | bfd_vma symval; |
0a22ae8e | 3186 | struct elf_link_hash_entry **hh; |
252b5132 RH |
3187 | |
3188 | /* Note that we've changed things. */ | |
3189 | elf_section_data (section)->relocs = internal_relocs; | |
252b5132 | 3190 | elf_section_data (section)->this_hdr.contents = contents; |
6cdc0ccc | 3191 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3192 | |
3193 | /* Count how many bytes we're going to delete. */ | |
3194 | if (sym_hash->movm_args) | |
3195 | bytes += 2; | |
3196 | ||
1a101a42 AM |
3197 | if (sym_hash->stack_size > 0) |
3198 | { | |
3199 | if (sym_hash->stack_size <= 128) | |
3200 | bytes += 3; | |
3201 | else | |
3202 | bytes += 4; | |
3203 | } | |
252b5132 RH |
3204 | |
3205 | /* Note that we've deleted prologue bytes for this | |
3206 | function. */ | |
3207 | sym_hash->flags |= MN10300_DELETED_PROLOGUE_BYTES; | |
3208 | ||
3209 | /* Actually delete the bytes. */ | |
9ad5cbcf | 3210 | symval = sym_hash->root.root.u.def.value; |
252b5132 RH |
3211 | if (!mn10300_elf_relax_delete_bytes (input_bfd, |
3212 | section, | |
9ad5cbcf | 3213 | symval, |
252b5132 RH |
3214 | bytes)) |
3215 | goto error_return; | |
3216 | ||
0a22ae8e NC |
3217 | /* There may be other C++ functions symbols with the same |
3218 | address. If so then mark these as having had their | |
3219 | prologue bytes deleted as well. */ | |
3220 | for (hh = elf_sym_hashes (input_bfd); hh < end_hashes; hh++) | |
3221 | { | |
3222 | struct elf32_mn10300_link_hash_entry *h; | |
3223 | ||
3224 | h = (struct elf32_mn10300_link_hash_entry *) * hh; | |
3225 | ||
3226 | if (h != sym_hash | |
3227 | && (h->root.root.type == bfd_link_hash_defined | |
3228 | || h->root.root.type == bfd_link_hash_defweak) | |
3229 | && h->root.root.u.def.section == section | |
3230 | && ! (h->flags & MN10300_CONVERT_CALL_TO_CALLS) | |
3231 | && h->root.root.u.def.value == symval | |
3232 | && h->root.type == STT_FUNC) | |
3233 | h->flags |= MN10300_DELETED_PROLOGUE_BYTES; | |
3234 | } | |
3235 | ||
252b5132 RH |
3236 | /* Something changed. Not strictly necessary, but |
3237 | may lead to more relaxing opportunities. */ | |
b34976b6 | 3238 | *again = TRUE; |
252b5132 RH |
3239 | } |
3240 | } | |
3241 | ||
3242 | /* Cache or free any memory we allocated for the relocs. */ | |
6cdc0ccc AM |
3243 | if (internal_relocs != NULL |
3244 | && elf_section_data (section)->relocs != internal_relocs) | |
3245 | free (internal_relocs); | |
3246 | internal_relocs = NULL; | |
252b5132 RH |
3247 | |
3248 | /* Cache or free any memory we allocated for the contents. */ | |
6cdc0ccc AM |
3249 | if (contents != NULL |
3250 | && elf_section_data (section)->this_hdr.contents != contents) | |
252b5132 RH |
3251 | { |
3252 | if (! link_info->keep_memory) | |
6cdc0ccc | 3253 | free (contents); |
252b5132 | 3254 | else |
603b7257 NC |
3255 | /* Cache the section contents for elf_link_input_bfd. */ |
3256 | elf_section_data (section)->this_hdr.contents = contents; | |
252b5132 | 3257 | } |
6cdc0ccc | 3258 | contents = NULL; |
9ad5cbcf AM |
3259 | } |
3260 | ||
252b5132 | 3261 | /* Cache or free any memory we allocated for the symbols. */ |
6cdc0ccc AM |
3262 | if (isymbuf != NULL |
3263 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
3264 | { |
3265 | if (! link_info->keep_memory) | |
6cdc0ccc AM |
3266 | free (isymbuf); |
3267 | else | |
603b7257 NC |
3268 | /* Cache the symbols for elf_link_input_bfd. */ |
3269 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
252b5132 | 3270 | } |
6cdc0ccc | 3271 | isymbuf = NULL; |
252b5132 RH |
3272 | } |
3273 | } | |
3274 | ||
252b5132 RH |
3275 | /* (Re)initialize for the basic instruction shortening/relaxing pass. */ |
3276 | contents = NULL; | |
252b5132 | 3277 | internal_relocs = NULL; |
6cdc0ccc AM |
3278 | isymbuf = NULL; |
3279 | /* For error_return. */ | |
3280 | section = sec; | |
252b5132 | 3281 | |
1049f94e | 3282 | /* We don't have to do anything for a relocatable link, if |
252b5132 RH |
3283 | this section does not have relocs, or if this is not a |
3284 | code section. */ | |
1049f94e | 3285 | if (link_info->relocatable |
252b5132 RH |
3286 | || (sec->flags & SEC_RELOC) == 0 |
3287 | || sec->reloc_count == 0 | |
3288 | || (sec->flags & SEC_CODE) == 0) | |
b34976b6 | 3289 | return TRUE; |
252b5132 | 3290 | |
252b5132 RH |
3291 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
3292 | ||
3293 | /* Get a copy of the native relocations. */ | |
603b7257 NC |
3294 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, |
3295 | link_info->keep_memory); | |
252b5132 RH |
3296 | if (internal_relocs == NULL) |
3297 | goto error_return; | |
252b5132 | 3298 | |
fc91707c NC |
3299 | /* Scan for worst case alignment gap changes. Note that this logic |
3300 | is not ideal; what we should do is run this scan for every | |
3301 | opcode/address range and adjust accordingly, but that's | |
3302 | expensive. Worst case is that for an alignment of N bytes, we | |
3303 | move by 2*N-N-1 bytes, assuming we have aligns of 1, 2, 4, 8, etc | |
3304 | all before it. Plus, this still doesn't cover cross-section | |
3305 | jumps with section alignment. */ | |
3306 | irelend = internal_relocs + sec->reloc_count; | |
3307 | align_gap_adjustment = 0; | |
3308 | for (irel = internal_relocs; irel < irelend; irel++) | |
3309 | { | |
3310 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_ALIGN) | |
3311 | { | |
3312 | bfd_vma adj = 1 << irel->r_addend; | |
3313 | bfd_vma aend = irel->r_offset; | |
3314 | ||
3315 | aend = BFD_ALIGN (aend, 1 << irel->r_addend); | |
e23f1610 | 3316 | adj = 2 * adj - adj - 1; |
fc91707c NC |
3317 | |
3318 | /* Record the biggest adjustmnet. Skip any alignment at the | |
3319 | end of our section. */ | |
3320 | if (align_gap_adjustment < adj | |
3321 | && aend < sec->output_section->vma + sec->output_offset + sec->size) | |
3322 | align_gap_adjustment = adj; | |
3323 | } | |
3324 | } | |
3325 | ||
252b5132 RH |
3326 | /* Walk through them looking for relaxing opportunities. */ |
3327 | irelend = internal_relocs + sec->reloc_count; | |
3328 | for (irel = internal_relocs; irel < irelend; irel++) | |
3329 | { | |
3330 | bfd_vma symval; | |
605d18d4 DD |
3331 | bfd_signed_vma jump_offset; |
3332 | asection *sym_sec = NULL; | |
252b5132 RH |
3333 | struct elf32_mn10300_link_hash_entry *h = NULL; |
3334 | ||
3335 | /* If this isn't something that can be relaxed, then ignore | |
3336 | this reloc. */ | |
3337 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_NONE | |
3338 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_8 | |
3339 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_MAX) | |
3340 | continue; | |
3341 | ||
3342 | /* Get the section contents if we haven't done so already. */ | |
3343 | if (contents == NULL) | |
3344 | { | |
3345 | /* Get cached copy if it exists. */ | |
3346 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
3347 | contents = elf_section_data (sec)->this_hdr.contents; | |
3348 | else | |
3349 | { | |
3350 | /* Go get them off disk. */ | |
eea6121a | 3351 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
3352 | goto error_return; |
3353 | } | |
3354 | } | |
3355 | ||
b34976b6 | 3356 | /* Read this BFD's symbols if we haven't done so already. */ |
6cdc0ccc | 3357 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
252b5132 | 3358 | { |
6cdc0ccc AM |
3359 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
3360 | if (isymbuf == NULL) | |
3361 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
3362 | symtab_hdr->sh_info, 0, | |
3363 | NULL, NULL, NULL); | |
3364 | if (isymbuf == NULL) | |
3365 | goto error_return; | |
252b5132 RH |
3366 | } |
3367 | ||
3368 | /* Get the value of the symbol referred to by the reloc. */ | |
3369 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
3370 | { | |
6cdc0ccc | 3371 | Elf_Internal_Sym *isym; |
252b5132 RH |
3372 | const char *sym_name; |
3373 | char *new_name; | |
3374 | ||
3375 | /* A local symbol. */ | |
6cdc0ccc AM |
3376 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
3377 | if (isym->st_shndx == SHN_UNDEF) | |
252b5132 | 3378 | sym_sec = bfd_und_section_ptr; |
6cdc0ccc | 3379 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 3380 | sym_sec = bfd_abs_section_ptr; |
6cdc0ccc | 3381 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 | 3382 | sym_sec = bfd_com_section_ptr; |
86033394 | 3383 | else |
6cdc0ccc | 3384 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
a7c10850 | 3385 | |
252b5132 RH |
3386 | sym_name = bfd_elf_string_from_elf_section (abfd, |
3387 | symtab_hdr->sh_link, | |
6cdc0ccc | 3388 | isym->st_name); |
252b5132 | 3389 | |
dd90f1b2 | 3390 | if ((sym_sec->flags & SEC_MERGE) |
dbaa2011 | 3391 | && sym_sec->sec_info_type == SEC_INFO_TYPE_MERGE) |
dd90f1b2 | 3392 | { |
2709f570 NC |
3393 | symval = isym->st_value; |
3394 | ||
3395 | /* GAS may reduce relocations against symbols in SEC_MERGE | |
3396 | sections to a relocation against the section symbol when | |
3397 | the original addend was zero. When the reloc is against | |
3398 | a section symbol we should include the addend in the | |
3399 | offset passed to _bfd_merged_section_offset, since the | |
3400 | location of interest is the original symbol. On the | |
3401 | other hand, an access to "sym+addend" where "sym" is not | |
3402 | a section symbol should not include the addend; Such an | |
3403 | access is presumed to be an offset from "sym"; The | |
3404 | location of interest is just "sym". */ | |
3405 | if (ELF_ST_TYPE (isym->st_info) == STT_SECTION) | |
3406 | symval += irel->r_addend; | |
3407 | ||
281153f3 NC |
3408 | symval = _bfd_merged_section_offset (abfd, & sym_sec, |
3409 | elf_section_data (sym_sec)->sec_info, | |
3410 | symval); | |
2709f570 NC |
3411 | |
3412 | if (ELF_ST_TYPE (isym->st_info) != STT_SECTION) | |
3413 | symval += irel->r_addend; | |
3414 | ||
3415 | symval += sym_sec->output_section->vma | |
3416 | + sym_sec->output_offset - irel->r_addend; | |
dd90f1b2 DD |
3417 | } |
3418 | else | |
bfff1642 NC |
3419 | symval = (isym->st_value |
3420 | + sym_sec->output_section->vma | |
3421 | + sym_sec->output_offset); | |
603b7257 | 3422 | |
252b5132 RH |
3423 | /* Tack on an ID so we can uniquely identify this |
3424 | local symbol in the global hash table. */ | |
dc810e39 | 3425 | new_name = bfd_malloc ((bfd_size_type) strlen (sym_name) + 10); |
bfff1642 | 3426 | if (new_name == NULL) |
252b5132 | 3427 | goto error_return; |
f60ca5e3 | 3428 | sprintf (new_name, "%s_%08x", sym_name, sym_sec->id); |
252b5132 RH |
3429 | sym_name = new_name; |
3430 | ||
3431 | h = (struct elf32_mn10300_link_hash_entry *) | |
3432 | elf_link_hash_lookup (&hash_table->static_hash_table->root, | |
b34976b6 | 3433 | sym_name, FALSE, FALSE, FALSE); |
252b5132 RH |
3434 | free (new_name); |
3435 | } | |
3436 | else | |
3437 | { | |
3438 | unsigned long indx; | |
3439 | ||
3440 | /* An external symbol. */ | |
3441 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
3442 | h = (struct elf32_mn10300_link_hash_entry *) | |
3443 | (elf_sym_hashes (abfd)[indx]); | |
3444 | BFD_ASSERT (h != NULL); | |
3445 | if (h->root.root.type != bfd_link_hash_defined | |
3446 | && h->root.root.type != bfd_link_hash_defweak) | |
603b7257 NC |
3447 | /* This appears to be a reference to an undefined |
3448 | symbol. Just ignore it--it will be caught by the | |
3449 | regular reloc processing. */ | |
3450 | continue; | |
252b5132 | 3451 | |
bfff1642 NC |
3452 | /* Check for a reference to a discarded symbol and ignore it. */ |
3453 | if (h->root.root.u.def.section->output_section == NULL) | |
3454 | continue; | |
3455 | ||
605d18d4 DD |
3456 | sym_sec = h->root.root.u.def.section->output_section; |
3457 | ||
252b5132 RH |
3458 | symval = (h->root.root.u.def.value |
3459 | + h->root.root.u.def.section->output_section->vma | |
3460 | + h->root.root.u.def.section->output_offset); | |
3461 | } | |
3462 | ||
3463 | /* For simplicity of coding, we are going to modify the section | |
3464 | contents, the section relocs, and the BFD symbol table. We | |
3465 | must tell the rest of the code not to free up this | |
3466 | information. It would be possible to instead create a table | |
3467 | of changes which have to be made, as is done in coff-mips.c; | |
3468 | that would be more work, but would require less memory when | |
3469 | the linker is run. */ | |
3470 | ||
3471 | /* Try to turn a 32bit pc-relative branch/call into a 16bit pc-relative | |
3472 | branch/call, also deal with "call" -> "calls" conversions and | |
3473 | insertion of prologue data into "call" instructions. */ | |
03a12831 AO |
3474 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL32 |
3475 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32) | |
252b5132 RH |
3476 | { |
3477 | bfd_vma value = symval; | |
3478 | ||
03a12831 AO |
3479 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PLT32 |
3480 | && h != NULL | |
3481 | && ELF_ST_VISIBILITY (h->root.other) != STV_INTERNAL | |
3482 | && ELF_ST_VISIBILITY (h->root.other) != STV_HIDDEN | |
3483 | && h->root.plt.offset != (bfd_vma) -1) | |
3484 | { | |
3485 | asection * splt; | |
3486 | ||
3d4d4302 | 3487 | splt = hash_table->root.splt; |
03a12831 AO |
3488 | value = ((splt->output_section->vma |
3489 | + splt->output_offset | |
3490 | + h->root.plt.offset) | |
3491 | - (sec->output_section->vma | |
3492 | + sec->output_offset | |
3493 | + irel->r_offset)); | |
3494 | } | |
3495 | ||
252b5132 RH |
3496 | /* If we've got a "call" instruction that needs to be turned |
3497 | into a "calls" instruction, do so now. It saves a byte. */ | |
3498 | if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS)) | |
3499 | { | |
3500 | unsigned char code; | |
3501 | ||
3502 | /* Get the opcode. */ | |
3503 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3504 | ||
3505 | /* Make sure we're working with a "call" instruction! */ | |
3506 | if (code == 0xdd) | |
3507 | { | |
3508 | /* Note that we've changed the relocs, section contents, | |
3509 | etc. */ | |
3510 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3511 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3512 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3513 | |
3514 | /* Fix the opcode. */ | |
3515 | bfd_put_8 (abfd, 0xfc, contents + irel->r_offset - 1); | |
3516 | bfd_put_8 (abfd, 0xff, contents + irel->r_offset); | |
3517 | ||
3518 | /* Fix irel->r_offset and irel->r_addend. */ | |
3519 | irel->r_offset += 1; | |
3520 | irel->r_addend += 1; | |
3521 | ||
3522 | /* Delete one byte of data. */ | |
3523 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3524 | irel->r_offset + 3, 1)) | |
3525 | goto error_return; | |
3526 | ||
3527 | /* That will change things, so, we should relax again. | |
3528 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3529 | *again = TRUE; |
252b5132 RH |
3530 | } |
3531 | } | |
3532 | else if (h) | |
3533 | { | |
3534 | /* We've got a "call" instruction which needs some data | |
3535 | from target function filled in. */ | |
3536 | unsigned char code; | |
3537 | ||
3538 | /* Get the opcode. */ | |
3539 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3540 | ||
3541 | /* Insert data from the target function into the "call" | |
3542 | instruction if needed. */ | |
3543 | if (code == 0xdd) | |
3544 | { | |
3545 | bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 4); | |
3546 | bfd_put_8 (abfd, h->stack_size + h->movm_stack_size, | |
3547 | contents + irel->r_offset + 5); | |
3548 | } | |
3549 | } | |
3550 | ||
3551 | /* Deal with pc-relative gunk. */ | |
3552 | value -= (sec->output_section->vma + sec->output_offset); | |
3553 | value -= irel->r_offset; | |
3554 | value += irel->r_addend; | |
3555 | ||
3556 | /* See if the value will fit in 16 bits, note the high value is | |
3557 | 0x7fff + 2 as the target will be two bytes closer if we are | |
605d18d4 DD |
3558 | able to relax, if it's in the same section. */ |
3559 | if (sec->output_section == sym_sec->output_section) | |
3560 | jump_offset = 0x8001; | |
3561 | else | |
3562 | jump_offset = 0x7fff; | |
3563 | ||
fc91707c NC |
3564 | /* Account for jumps across alignment boundaries using |
3565 | align_gap_adjustment. */ | |
605d18d4 | 3566 | if ((bfd_signed_vma) value < jump_offset - (bfd_signed_vma) align_gap_adjustment |
fc91707c | 3567 | && ((bfd_signed_vma) value > -0x8000 + (bfd_signed_vma) align_gap_adjustment)) |
252b5132 RH |
3568 | { |
3569 | unsigned char code; | |
3570 | ||
3571 | /* Get the opcode. */ | |
3572 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3573 | ||
3574 | if (code != 0xdc && code != 0xdd && code != 0xff) | |
3575 | continue; | |
3576 | ||
3577 | /* Note that we've changed the relocs, section contents, etc. */ | |
3578 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3579 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3580 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3581 | |
3582 | /* Fix the opcode. */ | |
3583 | if (code == 0xdc) | |
3584 | bfd_put_8 (abfd, 0xcc, contents + irel->r_offset - 1); | |
3585 | else if (code == 0xdd) | |
3586 | bfd_put_8 (abfd, 0xcd, contents + irel->r_offset - 1); | |
3587 | else if (code == 0xff) | |
3588 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
3589 | ||
3590 | /* Fix the relocation's type. */ | |
3591 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3592 | (ELF32_R_TYPE (irel->r_info) |
3593 | == (int) R_MN10300_PLT32) | |
3594 | ? R_MN10300_PLT16 : | |
252b5132 RH |
3595 | R_MN10300_PCREL16); |
3596 | ||
3597 | /* Delete two bytes of data. */ | |
3598 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3599 | irel->r_offset + 1, 2)) | |
3600 | goto error_return; | |
3601 | ||
3602 | /* That will change things, so, we should relax again. | |
3603 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3604 | *again = TRUE; |
252b5132 RH |
3605 | } |
3606 | } | |
3607 | ||
3608 | /* Try to turn a 16bit pc-relative branch into a 8bit pc-relative | |
3609 | branch. */ | |
3610 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL16) | |
3611 | { | |
3612 | bfd_vma value = symval; | |
3613 | ||
3614 | /* If we've got a "call" instruction that needs to be turned | |
3615 | into a "calls" instruction, do so now. It saves a byte. */ | |
3616 | if (h && (h->flags & MN10300_CONVERT_CALL_TO_CALLS)) | |
3617 | { | |
3618 | unsigned char code; | |
3619 | ||
3620 | /* Get the opcode. */ | |
3621 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3622 | ||
3623 | /* Make sure we're working with a "call" instruction! */ | |
3624 | if (code == 0xcd) | |
3625 | { | |
3626 | /* Note that we've changed the relocs, section contents, | |
3627 | etc. */ | |
3628 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3629 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3630 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3631 | |
3632 | /* Fix the opcode. */ | |
3633 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 1); | |
3634 | bfd_put_8 (abfd, 0xff, contents + irel->r_offset); | |
3635 | ||
3636 | /* Fix irel->r_offset and irel->r_addend. */ | |
3637 | irel->r_offset += 1; | |
3638 | irel->r_addend += 1; | |
3639 | ||
3640 | /* Delete one byte of data. */ | |
3641 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3642 | irel->r_offset + 1, 1)) | |
3643 | goto error_return; | |
3644 | ||
3645 | /* That will change things, so, we should relax again. | |
3646 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3647 | *again = TRUE; |
252b5132 RH |
3648 | } |
3649 | } | |
3650 | else if (h) | |
3651 | { | |
3652 | unsigned char code; | |
3653 | ||
3654 | /* Get the opcode. */ | |
3655 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3656 | ||
3657 | /* Insert data from the target function into the "call" | |
3658 | instruction if needed. */ | |
3659 | if (code == 0xcd) | |
3660 | { | |
3661 | bfd_put_8 (abfd, h->movm_args, contents + irel->r_offset + 2); | |
3662 | bfd_put_8 (abfd, h->stack_size + h->movm_stack_size, | |
3663 | contents + irel->r_offset + 3); | |
3664 | } | |
3665 | } | |
3666 | ||
3667 | /* Deal with pc-relative gunk. */ | |
3668 | value -= (sec->output_section->vma + sec->output_offset); | |
3669 | value -= irel->r_offset; | |
3670 | value += irel->r_addend; | |
3671 | ||
3672 | /* See if the value will fit in 8 bits, note the high value is | |
3673 | 0x7f + 1 as the target will be one bytes closer if we are | |
3674 | able to relax. */ | |
010ac81f | 3675 | if ((long) value < 0x80 && (long) value > -0x80) |
252b5132 RH |
3676 | { |
3677 | unsigned char code; | |
3678 | ||
3679 | /* Get the opcode. */ | |
3680 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3681 | ||
3682 | if (code != 0xcc) | |
3683 | continue; | |
3684 | ||
3685 | /* Note that we've changed the relocs, section contents, etc. */ | |
3686 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3687 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3688 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3689 | |
3690 | /* Fix the opcode. */ | |
3691 | bfd_put_8 (abfd, 0xca, contents + irel->r_offset - 1); | |
3692 | ||
3693 | /* Fix the relocation's type. */ | |
3694 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
3695 | R_MN10300_PCREL8); | |
3696 | ||
3697 | /* Delete one byte of data. */ | |
3698 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3699 | irel->r_offset + 1, 1)) | |
3700 | goto error_return; | |
3701 | ||
3702 | /* That will change things, so, we should relax again. | |
3703 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3704 | *again = TRUE; |
252b5132 RH |
3705 | } |
3706 | } | |
3707 | ||
3708 | /* Try to eliminate an unconditional 8 bit pc-relative branch | |
3709 | which immediately follows a conditional 8 bit pc-relative | |
3710 | branch around the unconditional branch. | |
3711 | ||
3712 | original: new: | |
3713 | bCC lab1 bCC' lab2 | |
3714 | bra lab2 | |
3715 | lab1: lab1: | |
3716 | ||
252b5132 RH |
3717 | This happens when the bCC can't reach lab2 at assembly time, |
3718 | but due to other relaxations it can reach at link time. */ | |
3719 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_PCREL8) | |
3720 | { | |
3721 | Elf_Internal_Rela *nrel; | |
3722 | bfd_vma value = symval; | |
3723 | unsigned char code; | |
3724 | ||
3725 | /* Deal with pc-relative gunk. */ | |
3726 | value -= (sec->output_section->vma + sec->output_offset); | |
3727 | value -= irel->r_offset; | |
3728 | value += irel->r_addend; | |
3729 | ||
3730 | /* Do nothing if this reloc is the last byte in the section. */ | |
eea6121a | 3731 | if (irel->r_offset == sec->size) |
252b5132 RH |
3732 | continue; |
3733 | ||
3734 | /* See if the next instruction is an unconditional pc-relative | |
3735 | branch, more often than not this test will fail, so we | |
3736 | test it first to speed things up. */ | |
3737 | code = bfd_get_8 (abfd, contents + irel->r_offset + 1); | |
3738 | if (code != 0xca) | |
3739 | continue; | |
3740 | ||
3741 | /* Also make sure the next relocation applies to the next | |
3742 | instruction and that it's a pc-relative 8 bit branch. */ | |
3743 | nrel = irel + 1; | |
3744 | if (nrel == irelend | |
3745 | || irel->r_offset + 2 != nrel->r_offset | |
3746 | || ELF32_R_TYPE (nrel->r_info) != (int) R_MN10300_PCREL8) | |
3747 | continue; | |
3748 | ||
3749 | /* Make sure our destination immediately follows the | |
3750 | unconditional branch. */ | |
3751 | if (symval != (sec->output_section->vma + sec->output_offset | |
3752 | + irel->r_offset + 3)) | |
3753 | continue; | |
3754 | ||
3755 | /* Now make sure we are a conditional branch. This may not | |
3756 | be necessary, but why take the chance. | |
3757 | ||
3758 | Note these checks assume that R_MN10300_PCREL8 relocs | |
3759 | only occur on bCC and bCCx insns. If they occured | |
3760 | elsewhere, we'd need to know the start of this insn | |
3761 | for this check to be accurate. */ | |
3762 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
3763 | if (code != 0xc0 && code != 0xc1 && code != 0xc2 | |
3764 | && code != 0xc3 && code != 0xc4 && code != 0xc5 | |
3765 | && code != 0xc6 && code != 0xc7 && code != 0xc8 | |
3766 | && code != 0xc9 && code != 0xe8 && code != 0xe9 | |
3767 | && code != 0xea && code != 0xeb) | |
3768 | continue; | |
3769 | ||
3770 | /* We also have to be sure there is no symbol/label | |
3771 | at the unconditional branch. */ | |
6cdc0ccc AM |
3772 | if (mn10300_elf_symbol_address_p (abfd, sec, isymbuf, |
3773 | irel->r_offset + 1)) | |
252b5132 RH |
3774 | continue; |
3775 | ||
3776 | /* Note that we've changed the relocs, section contents, etc. */ | |
3777 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 3778 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3779 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
3780 | |
3781 | /* Reverse the condition of the first branch. */ | |
3782 | switch (code) | |
3783 | { | |
010ac81f KH |
3784 | case 0xc8: |
3785 | code = 0xc9; | |
3786 | break; | |
3787 | case 0xc9: | |
3788 | code = 0xc8; | |
3789 | break; | |
3790 | case 0xc0: | |
3791 | code = 0xc2; | |
3792 | break; | |
3793 | case 0xc2: | |
3794 | code = 0xc0; | |
3795 | break; | |
3796 | case 0xc3: | |
3797 | code = 0xc1; | |
3798 | break; | |
3799 | case 0xc1: | |
3800 | code = 0xc3; | |
3801 | break; | |
3802 | case 0xc4: | |
3803 | code = 0xc6; | |
3804 | break; | |
3805 | case 0xc6: | |
3806 | code = 0xc4; | |
3807 | break; | |
3808 | case 0xc7: | |
3809 | code = 0xc5; | |
3810 | break; | |
3811 | case 0xc5: | |
3812 | code = 0xc7; | |
3813 | break; | |
3814 | case 0xe8: | |
3815 | code = 0xe9; | |
3816 | break; | |
3817 | case 0x9d: | |
3818 | code = 0xe8; | |
3819 | break; | |
3820 | case 0xea: | |
3821 | code = 0xeb; | |
3822 | break; | |
3823 | case 0xeb: | |
3824 | code = 0xea; | |
3825 | break; | |
252b5132 RH |
3826 | } |
3827 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
3828 | ||
3829 | /* Set the reloc type and symbol for the first branch | |
3830 | from the second branch. */ | |
3831 | irel->r_info = nrel->r_info; | |
3832 | ||
3833 | /* Make the reloc for the second branch a null reloc. */ | |
3834 | nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info), | |
3835 | R_MN10300_NONE); | |
3836 | ||
3837 | /* Delete two bytes of data. */ | |
3838 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3839 | irel->r_offset + 1, 2)) | |
3840 | goto error_return; | |
3841 | ||
3842 | /* That will change things, so, we should relax again. | |
3843 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 3844 | *again = TRUE; |
252b5132 RH |
3845 | } |
3846 | ||
31f8dc8f JL |
3847 | /* Try to turn a 24 immediate, displacement or absolute address |
3848 | into a 8 immediate, displacement or absolute address. */ | |
3849 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_24) | |
3850 | { | |
3851 | bfd_vma value = symval; | |
3852 | value += irel->r_addend; | |
3853 | ||
3854 | /* See if the value will fit in 8 bits. */ | |
010ac81f | 3855 | if ((long) value < 0x7f && (long) value > -0x80) |
31f8dc8f JL |
3856 | { |
3857 | unsigned char code; | |
3858 | ||
3859 | /* AM33 insns which have 24 operands are 6 bytes long and | |
3860 | will have 0xfd as the first byte. */ | |
3861 | ||
3862 | /* Get the first opcode. */ | |
3863 | code = bfd_get_8 (abfd, contents + irel->r_offset - 3); | |
3864 | ||
3865 | if (code == 0xfd) | |
3866 | { | |
010ac81f KH |
3867 | /* Get the second opcode. */ |
3868 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
31f8dc8f JL |
3869 | |
3870 | /* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit | |
3871 | equivalent instructions exists. */ | |
3b36f7e6 | 3872 | if (code != 0x6b && code != 0x7b |
31f8dc8f JL |
3873 | && code != 0x8b && code != 0x9b |
3874 | && ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08 | |
3875 | || (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b | |
3876 | || (code & 0x0f) == 0x0e)) | |
3877 | { | |
3878 | /* Not safe if the high bit is on as relaxing may | |
3b36f7e6 AM |
3879 | move the value out of high mem and thus not fit |
3880 | in a signed 8bit value. This is currently over | |
3881 | conservative. */ | |
31f8dc8f JL |
3882 | if ((value & 0x80) == 0) |
3883 | { | |
3884 | /* Note that we've changed the relocation contents, | |
3885 | etc. */ | |
3886 | elf_section_data (sec)->relocs = internal_relocs; | |
31f8dc8f | 3887 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3888 | symtab_hdr->contents = (unsigned char *) isymbuf; |
31f8dc8f JL |
3889 | |
3890 | /* Fix the opcode. */ | |
3891 | bfd_put_8 (abfd, 0xfb, contents + irel->r_offset - 3); | |
3892 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
3893 | ||
3894 | /* Fix the relocation's type. */ | |
010ac81f KH |
3895 | irel->r_info = |
3896 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
3897 | R_MN10300_8); | |
31f8dc8f JL |
3898 | |
3899 | /* Delete two bytes of data. */ | |
3900 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
3901 | irel->r_offset + 1, 2)) | |
3902 | goto error_return; | |
3903 | ||
3904 | /* That will change things, so, we should relax | |
3905 | again. Note that this is not required, and it | |
010ac81f | 3906 | may be slow. */ |
b34976b6 | 3907 | *again = TRUE; |
31f8dc8f JL |
3908 | break; |
3909 | } | |
3910 | } | |
31f8dc8f JL |
3911 | } |
3912 | } | |
3913 | } | |
252b5132 RH |
3914 | |
3915 | /* Try to turn a 32bit immediate, displacement or absolute address | |
3916 | into a 16bit immediate, displacement or absolute address. */ | |
03a12831 AO |
3917 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_32 |
3918 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32 | |
eb13e63f | 3919 | || ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32) |
252b5132 RH |
3920 | { |
3921 | bfd_vma value = symval; | |
03a12831 AO |
3922 | |
3923 | if (ELF32_R_TYPE (irel->r_info) != (int) R_MN10300_32) | |
3924 | { | |
3925 | asection * sgot; | |
3926 | ||
3d4d4302 | 3927 | sgot = hash_table->root.sgot; |
03a12831 AO |
3928 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOT32) |
3929 | { | |
3930 | value = sgot->output_offset; | |
3931 | ||
3932 | if (h) | |
3933 | value += h->root.got.offset; | |
3934 | else | |
3935 | value += (elf_local_got_offsets | |
3936 | (abfd)[ELF32_R_SYM (irel->r_info)]); | |
3937 | } | |
3938 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTOFF32) | |
3939 | value -= sgot->output_section->vma; | |
3940 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_MN10300_GOTPC32) | |
3941 | value = (sgot->output_section->vma | |
3942 | - (sec->output_section->vma | |
3943 | + sec->output_offset | |
3944 | + irel->r_offset)); | |
3945 | else | |
3946 | abort (); | |
3947 | } | |
3948 | ||
252b5132 RH |
3949 | value += irel->r_addend; |
3950 | ||
31f8dc8f JL |
3951 | /* See if the value will fit in 24 bits. |
3952 | We allow any 16bit match here. We prune those we can't | |
3953 | handle below. */ | |
010ac81f | 3954 | if ((long) value < 0x7fffff && (long) value > -0x800000) |
31f8dc8f JL |
3955 | { |
3956 | unsigned char code; | |
3957 | ||
3958 | /* AM33 insns which have 32bit operands are 7 bytes long and | |
3959 | will have 0xfe as the first byte. */ | |
3960 | ||
3961 | /* Get the first opcode. */ | |
3962 | code = bfd_get_8 (abfd, contents + irel->r_offset - 3); | |
3963 | ||
3964 | if (code == 0xfe) | |
3965 | { | |
3b36f7e6 AM |
3966 | /* Get the second opcode. */ |
3967 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
31f8dc8f JL |
3968 | |
3969 | /* All the am33 32 -> 24 relaxing possibilities. */ | |
3970 | /* We can not relax 0x6b, 0x7b, 0x8b, 0x9b as no 24bit | |
3971 | equivalent instructions exists. */ | |
010ac81f | 3972 | if (code != 0x6b && code != 0x7b |
31f8dc8f | 3973 | && code != 0x8b && code != 0x9b |
03a12831 AO |
3974 | && (ELF32_R_TYPE (irel->r_info) |
3975 | != (int) R_MN10300_GOTPC32) | |
31f8dc8f JL |
3976 | && ((code & 0x0f) == 0x09 || (code & 0x0f) == 0x08 |
3977 | || (code & 0x0f) == 0x0a || (code & 0x0f) == 0x0b | |
3978 | || (code & 0x0f) == 0x0e)) | |
3979 | { | |
3980 | /* Not safe if the high bit is on as relaxing may | |
3b36f7e6 AM |
3981 | move the value out of high mem and thus not fit |
3982 | in a signed 16bit value. This is currently over | |
3983 | conservative. */ | |
31f8dc8f JL |
3984 | if ((value & 0x8000) == 0) |
3985 | { | |
3986 | /* Note that we've changed the relocation contents, | |
3987 | etc. */ | |
3988 | elf_section_data (sec)->relocs = internal_relocs; | |
31f8dc8f | 3989 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 3990 | symtab_hdr->contents = (unsigned char *) isymbuf; |
31f8dc8f JL |
3991 | |
3992 | /* Fix the opcode. */ | |
3993 | bfd_put_8 (abfd, 0xfd, contents + irel->r_offset - 3); | |
3994 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
3995 | ||
3996 | /* Fix the relocation's type. */ | |
010ac81f KH |
3997 | irel->r_info = |
3998 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
3999 | (ELF32_R_TYPE (irel->r_info) |
4000 | == (int) R_MN10300_GOTOFF32) | |
4001 | ? R_MN10300_GOTOFF24 | |
4002 | : (ELF32_R_TYPE (irel->r_info) | |
4003 | == (int) R_MN10300_GOT32) | |
4004 | ? R_MN10300_GOT24 : | |
010ac81f | 4005 | R_MN10300_24); |
31f8dc8f JL |
4006 | |
4007 | /* Delete one byte of data. */ | |
4008 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
4009 | irel->r_offset + 3, 1)) | |
4010 | goto error_return; | |
4011 | ||
4012 | /* That will change things, so, we should relax | |
4013 | again. Note that this is not required, and it | |
010ac81f | 4014 | may be slow. */ |
b34976b6 | 4015 | *again = TRUE; |
31f8dc8f JL |
4016 | break; |
4017 | } | |
4018 | } | |
31f8dc8f JL |
4019 | } |
4020 | } | |
252b5132 RH |
4021 | |
4022 | /* See if the value will fit in 16 bits. | |
4023 | We allow any 16bit match here. We prune those we can't | |
4024 | handle below. */ | |
010ac81f | 4025 | if ((long) value < 0x7fff && (long) value > -0x8000) |
252b5132 RH |
4026 | { |
4027 | unsigned char code; | |
4028 | ||
4029 | /* Most insns which have 32bit operands are 6 bytes long; | |
4030 | exceptions are pcrel insns and bit insns. | |
4031 | ||
4032 | We handle pcrel insns above. We don't bother trying | |
4033 | to handle the bit insns here. | |
4034 | ||
4035 | The first byte of the remaining insns will be 0xfc. */ | |
4036 | ||
4037 | /* Get the first opcode. */ | |
4038 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
4039 | ||
4040 | if (code != 0xfc) | |
4041 | continue; | |
4042 | ||
4043 | /* Get the second opcode. */ | |
4044 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
4045 | ||
4046 | if ((code & 0xf0) < 0x80) | |
4047 | switch (code & 0xf0) | |
4048 | { | |
4049 | /* mov (d32,am),dn -> mov (d32,am),dn | |
4050 | mov dm,(d32,am) -> mov dn,(d32,am) | |
4051 | mov (d32,am),an -> mov (d32,am),an | |
4052 | mov dm,(d32,am) -> mov dn,(d32,am) | |
4053 | movbu (d32,am),dn -> movbu (d32,am),dn | |
4054 | movbu dm,(d32,am) -> movbu dn,(d32,am) | |
4055 | movhu (d32,am),dn -> movhu (d32,am),dn | |
4056 | movhu dm,(d32,am) -> movhu dn,(d32,am) */ | |
4057 | case 0x00: | |
4058 | case 0x10: | |
4059 | case 0x20: | |
4060 | case 0x30: | |
4061 | case 0x40: | |
4062 | case 0x50: | |
4063 | case 0x60: | |
4064 | case 0x70: | |
4065 | /* Not safe if the high bit is on as relaxing may | |
4066 | move the value out of high mem and thus not fit | |
4067 | in a signed 16bit value. */ | |
4068 | if (code == 0xcc | |
4069 | && (value & 0x8000)) | |
4070 | continue; | |
4071 | ||
4072 | /* Note that we've changed the relocation contents, etc. */ | |
4073 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 4074 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 4075 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
4076 | |
4077 | /* Fix the opcode. */ | |
4078 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
4079 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
4080 | ||
4081 | /* Fix the relocation's type. */ | |
4082 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
4083 | (ELF32_R_TYPE (irel->r_info) |
4084 | == (int) R_MN10300_GOTOFF32) | |
4085 | ? R_MN10300_GOTOFF16 | |
4086 | : (ELF32_R_TYPE (irel->r_info) | |
4087 | == (int) R_MN10300_GOT32) | |
4088 | ? R_MN10300_GOT16 | |
4089 | : (ELF32_R_TYPE (irel->r_info) | |
4090 | == (int) R_MN10300_GOTPC32) | |
4091 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
4092 | R_MN10300_16); |
4093 | ||
4094 | /* Delete two bytes of data. */ | |
4095 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
4096 | irel->r_offset + 2, 2)) | |
4097 | goto error_return; | |
4098 | ||
4099 | /* That will change things, so, we should relax again. | |
4100 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 4101 | *again = TRUE; |
252b5132 RH |
4102 | break; |
4103 | } | |
4104 | else if ((code & 0xf0) == 0x80 | |
4105 | || (code & 0xf0) == 0x90) | |
4106 | switch (code & 0xf3) | |
4107 | { | |
4108 | /* mov dn,(abs32) -> mov dn,(abs16) | |
4109 | movbu dn,(abs32) -> movbu dn,(abs16) | |
4110 | movhu dn,(abs32) -> movhu dn,(abs16) */ | |
4111 | case 0x81: | |
4112 | case 0x82: | |
4113 | case 0x83: | |
4114 | /* Note that we've changed the relocation contents, etc. */ | |
4115 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 4116 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 4117 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
4118 | |
4119 | if ((code & 0xf3) == 0x81) | |
4120 | code = 0x01 + (code & 0x0c); | |
4121 | else if ((code & 0xf3) == 0x82) | |
4122 | code = 0x02 + (code & 0x0c); | |
4123 | else if ((code & 0xf3) == 0x83) | |
4124 | code = 0x03 + (code & 0x0c); | |
4125 | else | |
4126 | abort (); | |
4127 | ||
4128 | /* Fix the opcode. */ | |
4129 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
4130 | ||
4131 | /* Fix the relocation's type. */ | |
4132 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
4133 | (ELF32_R_TYPE (irel->r_info) |
4134 | == (int) R_MN10300_GOTOFF32) | |
4135 | ? R_MN10300_GOTOFF16 | |
4136 | : (ELF32_R_TYPE (irel->r_info) | |
4137 | == (int) R_MN10300_GOT32) | |
4138 | ? R_MN10300_GOT16 | |
4139 | : (ELF32_R_TYPE (irel->r_info) | |
4140 | == (int) R_MN10300_GOTPC32) | |
4141 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
4142 | R_MN10300_16); |
4143 | ||
4144 | /* The opcode got shorter too, so we have to fix the | |
4145 | addend and offset too! */ | |
4146 | irel->r_offset -= 1; | |
4147 | ||
4148 | /* Delete three bytes of data. */ | |
4149 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
4150 | irel->r_offset + 1, 3)) | |
4151 | goto error_return; | |
4152 | ||
4153 | /* That will change things, so, we should relax again. | |
4154 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 4155 | *again = TRUE; |
252b5132 RH |
4156 | break; |
4157 | ||
4158 | /* mov am,(abs32) -> mov am,(abs16) | |
4159 | mov am,(d32,sp) -> mov am,(d16,sp) | |
4160 | mov dm,(d32,sp) -> mov dm,(d32,sp) | |
4161 | movbu dm,(d32,sp) -> movbu dm,(d32,sp) | |
4162 | movhu dm,(d32,sp) -> movhu dm,(d32,sp) */ | |
4163 | case 0x80: | |
4164 | case 0x90: | |
4165 | case 0x91: | |
4166 | case 0x92: | |
4167 | case 0x93: | |
2a0fa943 AO |
4168 | /* sp-based offsets are zero-extended. */ |
4169 | if (code >= 0x90 && code <= 0x93 | |
bfff1642 | 4170 | && (long) value < 0) |
2a0fa943 AO |
4171 | continue; |
4172 | ||
252b5132 RH |
4173 | /* Note that we've changed the relocation contents, etc. */ |
4174 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 4175 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 4176 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
4177 | |
4178 | /* Fix the opcode. */ | |
4179 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
4180 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
4181 | ||
4182 | /* Fix the relocation's type. */ | |
4183 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
4184 | (ELF32_R_TYPE (irel->r_info) |
4185 | == (int) R_MN10300_GOTOFF32) | |
4186 | ? R_MN10300_GOTOFF16 | |
4187 | : (ELF32_R_TYPE (irel->r_info) | |
4188 | == (int) R_MN10300_GOT32) | |
4189 | ? R_MN10300_GOT16 | |
4190 | : (ELF32_R_TYPE (irel->r_info) | |
4191 | == (int) R_MN10300_GOTPC32) | |
4192 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
4193 | R_MN10300_16); |
4194 | ||
4195 | /* Delete two bytes of data. */ | |
4196 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
4197 | irel->r_offset + 2, 2)) | |
4198 | goto error_return; | |
4199 | ||
4200 | /* That will change things, so, we should relax again. | |
4201 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 4202 | *again = TRUE; |
252b5132 RH |
4203 | break; |
4204 | } | |
4205 | else if ((code & 0xf0) < 0xf0) | |
4206 | switch (code & 0xfc) | |
4207 | { | |
4208 | /* mov imm32,dn -> mov imm16,dn | |
4209 | mov imm32,an -> mov imm16,an | |
4210 | mov (abs32),dn -> mov (abs16),dn | |
4211 | movbu (abs32),dn -> movbu (abs16),dn | |
4212 | movhu (abs32),dn -> movhu (abs16),dn */ | |
4213 | case 0xcc: | |
4214 | case 0xdc: | |
4215 | case 0xa4: | |
4216 | case 0xa8: | |
4217 | case 0xac: | |
4218 | /* Not safe if the high bit is on as relaxing may | |
4219 | move the value out of high mem and thus not fit | |
4220 | in a signed 16bit value. */ | |
4221 | if (code == 0xcc | |
4222 | && (value & 0x8000)) | |
4223 | continue; | |
4224 | ||
6746a626 NC |
4225 | /* "mov imm16, an" zero-extends the immediate. */ |
4226 | if ((code & 0xfc) == 0xdc | |
bfff1642 | 4227 | && (long) value < 0) |
2a0fa943 AO |
4228 | continue; |
4229 | ||
252b5132 RH |
4230 | /* Note that we've changed the relocation contents, etc. */ |
4231 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 4232 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 4233 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
4234 | |
4235 | if ((code & 0xfc) == 0xcc) | |
4236 | code = 0x2c + (code & 0x03); | |
4237 | else if ((code & 0xfc) == 0xdc) | |
4238 | code = 0x24 + (code & 0x03); | |
4239 | else if ((code & 0xfc) == 0xa4) | |
4240 | code = 0x30 + (code & 0x03); | |
4241 | else if ((code & 0xfc) == 0xa8) | |
4242 | code = 0x34 + (code & 0x03); | |
4243 | else if ((code & 0xfc) == 0xac) | |
4244 | code = 0x38 + (code & 0x03); | |
4245 | else | |
4246 | abort (); | |
4247 | ||
4248 | /* Fix the opcode. */ | |
4249 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
4250 | ||
4251 | /* Fix the relocation's type. */ | |
4252 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
4253 | (ELF32_R_TYPE (irel->r_info) |
4254 | == (int) R_MN10300_GOTOFF32) | |
4255 | ? R_MN10300_GOTOFF16 | |
4256 | : (ELF32_R_TYPE (irel->r_info) | |
4257 | == (int) R_MN10300_GOT32) | |
4258 | ? R_MN10300_GOT16 | |
4259 | : (ELF32_R_TYPE (irel->r_info) | |
4260 | == (int) R_MN10300_GOTPC32) | |
4261 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
4262 | R_MN10300_16); |
4263 | ||
4264 | /* The opcode got shorter too, so we have to fix the | |
4265 | addend and offset too! */ | |
4266 | irel->r_offset -= 1; | |
4267 | ||
4268 | /* Delete three bytes of data. */ | |
4269 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
4270 | irel->r_offset + 1, 3)) | |
4271 | goto error_return; | |
4272 | ||
4273 | /* That will change things, so, we should relax again. | |
4274 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 4275 | *again = TRUE; |
252b5132 RH |
4276 | break; |
4277 | ||
4278 | /* mov (abs32),an -> mov (abs16),an | |
2a0fa943 AO |
4279 | mov (d32,sp),an -> mov (d16,sp),an |
4280 | mov (d32,sp),dn -> mov (d16,sp),dn | |
4281 | movbu (d32,sp),dn -> movbu (d16,sp),dn | |
4282 | movhu (d32,sp),dn -> movhu (d16,sp),dn | |
252b5132 RH |
4283 | add imm32,dn -> add imm16,dn |
4284 | cmp imm32,dn -> cmp imm16,dn | |
4285 | add imm32,an -> add imm16,an | |
4286 | cmp imm32,an -> cmp imm16,an | |
2a0fa943 AO |
4287 | and imm32,dn -> and imm16,dn |
4288 | or imm32,dn -> or imm16,dn | |
4289 | xor imm32,dn -> xor imm16,dn | |
4290 | btst imm32,dn -> btst imm16,dn */ | |
252b5132 RH |
4291 | |
4292 | case 0xa0: | |
4293 | case 0xb0: | |
4294 | case 0xb1: | |
4295 | case 0xb2: | |
4296 | case 0xb3: | |
4297 | case 0xc0: | |
4298 | case 0xc8: | |
4299 | ||
4300 | case 0xd0: | |
4301 | case 0xd8: | |
4302 | case 0xe0: | |
4303 | case 0xe1: | |
4304 | case 0xe2: | |
4305 | case 0xe3: | |
2a0fa943 AO |
4306 | /* cmp imm16, an zero-extends the immediate. */ |
4307 | if (code == 0xdc | |
bfff1642 | 4308 | && (long) value < 0) |
2a0fa943 AO |
4309 | continue; |
4310 | ||
4311 | /* So do sp-based offsets. */ | |
4312 | if (code >= 0xb0 && code <= 0xb3 | |
bfff1642 | 4313 | && (long) value < 0) |
2a0fa943 AO |
4314 | continue; |
4315 | ||
252b5132 RH |
4316 | /* Note that we've changed the relocation contents, etc. */ |
4317 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 4318 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 4319 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
4320 | |
4321 | /* Fix the opcode. */ | |
4322 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
4323 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); | |
4324 | ||
4325 | /* Fix the relocation's type. */ | |
4326 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
4327 | (ELF32_R_TYPE (irel->r_info) |
4328 | == (int) R_MN10300_GOTOFF32) | |
4329 | ? R_MN10300_GOTOFF16 | |
4330 | : (ELF32_R_TYPE (irel->r_info) | |
4331 | == (int) R_MN10300_GOT32) | |
4332 | ? R_MN10300_GOT16 | |
4333 | : (ELF32_R_TYPE (irel->r_info) | |
4334 | == (int) R_MN10300_GOTPC32) | |
4335 | ? R_MN10300_GOTPC16 : | |
252b5132 RH |
4336 | R_MN10300_16); |
4337 | ||
4338 | /* Delete two bytes of data. */ | |
4339 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
4340 | irel->r_offset + 2, 2)) | |
4341 | goto error_return; | |
4342 | ||
4343 | /* That will change things, so, we should relax again. | |
4344 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 4345 | *again = TRUE; |
252b5132 RH |
4346 | break; |
4347 | } | |
4348 | else if (code == 0xfe) | |
4349 | { | |
4350 | /* add imm32,sp -> add imm16,sp */ | |
4351 | ||
4352 | /* Note that we've changed the relocation contents, etc. */ | |
4353 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 4354 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 4355 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
4356 | |
4357 | /* Fix the opcode. */ | |
4358 | bfd_put_8 (abfd, 0xfa, contents + irel->r_offset - 2); | |
4359 | bfd_put_8 (abfd, 0xfe, contents + irel->r_offset - 1); | |
4360 | ||
4361 | /* Fix the relocation's type. */ | |
4362 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
03a12831 AO |
4363 | (ELF32_R_TYPE (irel->r_info) |
4364 | == (int) R_MN10300_GOT32) | |
4365 | ? R_MN10300_GOT16 | |
4366 | : (ELF32_R_TYPE (irel->r_info) | |
4367 | == (int) R_MN10300_GOTOFF32) | |
4368 | ? R_MN10300_GOTOFF16 | |
4369 | : (ELF32_R_TYPE (irel->r_info) | |
4370 | == (int) R_MN10300_GOTPC32) | |
4371 | ? R_MN10300_GOTPC16 : | |
010ac81f | 4372 | R_MN10300_16); |
252b5132 RH |
4373 | |
4374 | /* Delete two bytes of data. */ | |
4375 | if (!mn10300_elf_relax_delete_bytes (abfd, sec, | |
4376 | irel->r_offset + 2, 2)) | |
4377 | goto error_return; | |
4378 | ||
4379 | /* That will change things, so, we should relax again. | |
4380 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 4381 | *again = TRUE; |
252b5132 RH |
4382 | break; |
4383 | } | |
4384 | } | |
4385 | } | |
4386 | } | |
4387 | ||
6cdc0ccc AM |
4388 | if (isymbuf != NULL |
4389 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
4390 | { |
4391 | if (! link_info->keep_memory) | |
6cdc0ccc | 4392 | free (isymbuf); |
252b5132 RH |
4393 | else |
4394 | { | |
6cdc0ccc AM |
4395 | /* Cache the symbols for elf_link_input_bfd. */ |
4396 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
252b5132 | 4397 | } |
9ad5cbcf AM |
4398 | } |
4399 | ||
6cdc0ccc AM |
4400 | if (contents != NULL |
4401 | && elf_section_data (sec)->this_hdr.contents != contents) | |
252b5132 RH |
4402 | { |
4403 | if (! link_info->keep_memory) | |
6cdc0ccc AM |
4404 | free (contents); |
4405 | else | |
252b5132 | 4406 | { |
6cdc0ccc AM |
4407 | /* Cache the section contents for elf_link_input_bfd. */ |
4408 | elf_section_data (sec)->this_hdr.contents = contents; | |
252b5132 | 4409 | } |
252b5132 RH |
4410 | } |
4411 | ||
6cdc0ccc AM |
4412 | if (internal_relocs != NULL |
4413 | && elf_section_data (sec)->relocs != internal_relocs) | |
4414 | free (internal_relocs); | |
4415 | ||
b34976b6 | 4416 | return TRUE; |
252b5132 RH |
4417 | |
4418 | error_return: | |
6cdc0ccc AM |
4419 | if (isymbuf != NULL |
4420 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
4421 | free (isymbuf); | |
4422 | if (contents != NULL | |
4423 | && elf_section_data (section)->this_hdr.contents != contents) | |
4424 | free (contents); | |
4425 | if (internal_relocs != NULL | |
4426 | && elf_section_data (section)->relocs != internal_relocs) | |
4427 | free (internal_relocs); | |
9ad5cbcf | 4428 | |
b34976b6 | 4429 | return FALSE; |
252b5132 RH |
4430 | } |
4431 | ||
252b5132 RH |
4432 | /* This is a version of bfd_generic_get_relocated_section_contents |
4433 | which uses mn10300_elf_relocate_section. */ | |
4434 | ||
4435 | static bfd_byte * | |
603b7257 NC |
4436 | mn10300_elf_get_relocated_section_contents (bfd *output_bfd, |
4437 | struct bfd_link_info *link_info, | |
4438 | struct bfd_link_order *link_order, | |
4439 | bfd_byte *data, | |
4440 | bfd_boolean relocatable, | |
4441 | asymbol **symbols) | |
252b5132 RH |
4442 | { |
4443 | Elf_Internal_Shdr *symtab_hdr; | |
4444 | asection *input_section = link_order->u.indirect.section; | |
4445 | bfd *input_bfd = input_section->owner; | |
4446 | asection **sections = NULL; | |
4447 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 4448 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 RH |
4449 | |
4450 | /* We only need to handle the case of relaxing, or of having a | |
4451 | particular set of section contents, specially. */ | |
1049f94e | 4452 | if (relocatable |
252b5132 RH |
4453 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
4454 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
4455 | link_order, data, | |
1049f94e | 4456 | relocatable, |
252b5132 RH |
4457 | symbols); |
4458 | ||
4459 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
4460 | ||
4461 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
eea6121a | 4462 | (size_t) input_section->size); |
252b5132 RH |
4463 | |
4464 | if ((input_section->flags & SEC_RELOC) != 0 | |
4465 | && input_section->reloc_count > 0) | |
4466 | { | |
252b5132 | 4467 | asection **secpp; |
6cdc0ccc | 4468 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 4469 | bfd_size_type amt; |
252b5132 | 4470 | |
603b7257 NC |
4471 | internal_relocs = _bfd_elf_link_read_relocs (input_bfd, input_section, |
4472 | NULL, NULL, FALSE); | |
252b5132 RH |
4473 | if (internal_relocs == NULL) |
4474 | goto error_return; | |
4475 | ||
6cdc0ccc AM |
4476 | if (symtab_hdr->sh_info != 0) |
4477 | { | |
4478 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4479 | if (isymbuf == NULL) | |
4480 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
4481 | symtab_hdr->sh_info, 0, | |
4482 | NULL, NULL, NULL); | |
4483 | if (isymbuf == NULL) | |
4484 | goto error_return; | |
4485 | } | |
252b5132 | 4486 | |
9ad5cbcf AM |
4487 | amt = symtab_hdr->sh_info; |
4488 | amt *= sizeof (asection *); | |
603b7257 | 4489 | sections = bfd_malloc (amt); |
9ad5cbcf | 4490 | if (sections == NULL && amt != 0) |
252b5132 RH |
4491 | goto error_return; |
4492 | ||
6cdc0ccc AM |
4493 | isymend = isymbuf + symtab_hdr->sh_info; |
4494 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
252b5132 RH |
4495 | { |
4496 | asection *isec; | |
4497 | ||
6cdc0ccc | 4498 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 4499 | isec = bfd_und_section_ptr; |
6cdc0ccc | 4500 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 4501 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 4502 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 RH |
4503 | isec = bfd_com_section_ptr; |
4504 | else | |
6cdc0ccc | 4505 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
252b5132 RH |
4506 | |
4507 | *secpp = isec; | |
4508 | } | |
4509 | ||
4510 | if (! mn10300_elf_relocate_section (output_bfd, link_info, input_bfd, | |
603b7257 NC |
4511 | input_section, data, internal_relocs, |
4512 | isymbuf, sections)) | |
252b5132 RH |
4513 | goto error_return; |
4514 | ||
4515 | if (sections != NULL) | |
4516 | free (sections); | |
6cdc0ccc AM |
4517 | if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) |
4518 | free (isymbuf); | |
252b5132 RH |
4519 | if (internal_relocs != elf_section_data (input_section)->relocs) |
4520 | free (internal_relocs); | |
252b5132 RH |
4521 | } |
4522 | ||
4523 | return data; | |
4524 | ||
4525 | error_return: | |
6cdc0ccc AM |
4526 | if (sections != NULL) |
4527 | free (sections); | |
4528 | if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) | |
4529 | free (isymbuf); | |
252b5132 RH |
4530 | if (internal_relocs != NULL |
4531 | && internal_relocs != elf_section_data (input_section)->relocs) | |
4532 | free (internal_relocs); | |
252b5132 RH |
4533 | return NULL; |
4534 | } | |
4535 | ||
4536 | /* Assorted hash table functions. */ | |
4537 | ||
4538 | /* Initialize an entry in the link hash table. */ | |
4539 | ||
4540 | /* Create an entry in an MN10300 ELF linker hash table. */ | |
4541 | ||
4542 | static struct bfd_hash_entry * | |
603b7257 NC |
4543 | elf32_mn10300_link_hash_newfunc (struct bfd_hash_entry *entry, |
4544 | struct bfd_hash_table *table, | |
4545 | const char *string) | |
252b5132 RH |
4546 | { |
4547 | struct elf32_mn10300_link_hash_entry *ret = | |
4548 | (struct elf32_mn10300_link_hash_entry *) entry; | |
4549 | ||
4550 | /* Allocate the structure if it has not already been allocated by a | |
4551 | subclass. */ | |
603b7257 NC |
4552 | if (ret == NULL) |
4553 | ret = (struct elf32_mn10300_link_hash_entry *) | |
4554 | bfd_hash_allocate (table, sizeof (* ret)); | |
4555 | if (ret == NULL) | |
252b5132 RH |
4556 | return (struct bfd_hash_entry *) ret; |
4557 | ||
4558 | /* Call the allocation method of the superclass. */ | |
603b7257 | 4559 | ret = (struct elf32_mn10300_link_hash_entry *) |
252b5132 | 4560 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
603b7257 NC |
4561 | table, string); |
4562 | if (ret != NULL) | |
252b5132 RH |
4563 | { |
4564 | ret->direct_calls = 0; | |
4565 | ret->stack_size = 0; | |
5354b572 | 4566 | ret->movm_args = 0; |
252b5132 RH |
4567 | ret->movm_stack_size = 0; |
4568 | ret->flags = 0; | |
eb13e63f | 4569 | ret->value = 0; |
0a22ae8e | 4570 | ret->tls_type = GOT_UNKNOWN; |
252b5132 RH |
4571 | } |
4572 | ||
4573 | return (struct bfd_hash_entry *) ret; | |
4574 | } | |
4575 | ||
0a22ae8e NC |
4576 | static void |
4577 | _bfd_mn10300_copy_indirect_symbol (struct bfd_link_info * info, | |
4578 | struct elf_link_hash_entry * dir, | |
4579 | struct elf_link_hash_entry * ind) | |
4580 | { | |
4581 | struct elf32_mn10300_link_hash_entry * edir; | |
4582 | struct elf32_mn10300_link_hash_entry * eind; | |
4583 | ||
4584 | edir = elf_mn10300_hash_entry (dir); | |
4585 | eind = elf_mn10300_hash_entry (ind); | |
4586 | ||
4587 | if (ind->root.type == bfd_link_hash_indirect | |
4588 | && dir->got.refcount <= 0) | |
4589 | { | |
4590 | edir->tls_type = eind->tls_type; | |
4591 | eind->tls_type = GOT_UNKNOWN; | |
4592 | } | |
4593 | edir->direct_calls = eind->direct_calls; | |
4594 | edir->stack_size = eind->stack_size; | |
4595 | edir->movm_args = eind->movm_args; | |
4596 | edir->movm_stack_size = eind->movm_stack_size; | |
4597 | edir->flags = eind->flags; | |
4598 | ||
4599 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
4600 | } | |
4601 | ||
252b5132 RH |
4602 | /* Create an mn10300 ELF linker hash table. */ |
4603 | ||
4604 | static struct bfd_link_hash_table * | |
603b7257 | 4605 | elf32_mn10300_link_hash_table_create (bfd *abfd) |
252b5132 RH |
4606 | { |
4607 | struct elf32_mn10300_link_hash_table *ret; | |
603b7257 | 4608 | bfd_size_type amt = sizeof (* ret); |
252b5132 | 4609 | |
7bf52ea2 | 4610 | ret = bfd_zmalloc (amt); |
603b7257 | 4611 | if (ret == NULL) |
252b5132 RH |
4612 | return NULL; |
4613 | ||
66eb6687 AM |
4614 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
4615 | elf32_mn10300_link_hash_newfunc, | |
4dfe6ac6 NC |
4616 | sizeof (struct elf32_mn10300_link_hash_entry), |
4617 | MN10300_ELF_DATA)) | |
252b5132 | 4618 | { |
e2d34d7d | 4619 | free (ret); |
252b5132 RH |
4620 | return NULL; |
4621 | } | |
4622 | ||
0a22ae8e | 4623 | ret->tls_ldm_got.offset = -1; |
0a22ae8e | 4624 | |
dc810e39 | 4625 | amt = sizeof (struct elf_link_hash_table); |
7bf52ea2 | 4626 | ret->static_hash_table = bfd_zmalloc (amt); |
252b5132 RH |
4627 | if (ret->static_hash_table == NULL) |
4628 | { | |
e2d34d7d | 4629 | free (ret); |
252b5132 RH |
4630 | return NULL; |
4631 | } | |
4632 | ||
66eb6687 AM |
4633 | if (!_bfd_elf_link_hash_table_init (&ret->static_hash_table->root, abfd, |
4634 | elf32_mn10300_link_hash_newfunc, | |
4dfe6ac6 NC |
4635 | sizeof (struct elf32_mn10300_link_hash_entry), |
4636 | MN10300_ELF_DATA)) | |
252b5132 | 4637 | { |
e2d34d7d DJ |
4638 | free (ret->static_hash_table); |
4639 | free (ret); | |
252b5132 RH |
4640 | return NULL; |
4641 | } | |
603b7257 | 4642 | return & ret->root.root; |
252b5132 RH |
4643 | } |
4644 | ||
e2d34d7d DJ |
4645 | /* Free an mn10300 ELF linker hash table. */ |
4646 | ||
4647 | static void | |
603b7257 | 4648 | elf32_mn10300_link_hash_table_free (struct bfd_link_hash_table *hash) |
e2d34d7d DJ |
4649 | { |
4650 | struct elf32_mn10300_link_hash_table *ret | |
4651 | = (struct elf32_mn10300_link_hash_table *) hash; | |
4652 | ||
9f7c3e5e | 4653 | _bfd_elf_link_hash_table_free |
e2d34d7d | 4654 | ((struct bfd_link_hash_table *) ret->static_hash_table); |
9f7c3e5e | 4655 | _bfd_elf_link_hash_table_free |
e2d34d7d DJ |
4656 | ((struct bfd_link_hash_table *) ret); |
4657 | } | |
4658 | ||
dc810e39 | 4659 | static unsigned long |
603b7257 | 4660 | elf_mn10300_mach (flagword flags) |
252b5132 RH |
4661 | { |
4662 | switch (flags & EF_MN10300_MACH) | |
4663 | { | |
010ac81f KH |
4664 | case E_MN10300_MACH_MN10300: |
4665 | default: | |
4666 | return bfd_mach_mn10300; | |
252b5132 | 4667 | |
010ac81f KH |
4668 | case E_MN10300_MACH_AM33: |
4669 | return bfd_mach_am33; | |
b08fa4d3 AO |
4670 | |
4671 | case E_MN10300_MACH_AM33_2: | |
4672 | return bfd_mach_am33_2; | |
252b5132 RH |
4673 | } |
4674 | } | |
4675 | ||
4676 | /* The final processing done just before writing out a MN10300 ELF object | |
4677 | file. This gets the MN10300 architecture right based on the machine | |
4678 | number. */ | |
4679 | ||
603b7257 NC |
4680 | static void |
4681 | _bfd_mn10300_elf_final_write_processing (bfd *abfd, | |
4682 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
252b5132 RH |
4683 | { |
4684 | unsigned long val; | |
252b5132 RH |
4685 | |
4686 | switch (bfd_get_mach (abfd)) | |
4687 | { | |
010ac81f KH |
4688 | default: |
4689 | case bfd_mach_mn10300: | |
4690 | val = E_MN10300_MACH_MN10300; | |
4691 | break; | |
4692 | ||
4693 | case bfd_mach_am33: | |
4694 | val = E_MN10300_MACH_AM33; | |
4695 | break; | |
b08fa4d3 AO |
4696 | |
4697 | case bfd_mach_am33_2: | |
4698 | val = E_MN10300_MACH_AM33_2; | |
4699 | break; | |
252b5132 RH |
4700 | } |
4701 | ||
4702 | elf_elfheader (abfd)->e_flags &= ~ (EF_MN10300_MACH); | |
4703 | elf_elfheader (abfd)->e_flags |= val; | |
4704 | } | |
4705 | ||
603b7257 NC |
4706 | static bfd_boolean |
4707 | _bfd_mn10300_elf_object_p (bfd *abfd) | |
252b5132 RH |
4708 | { |
4709 | bfd_default_set_arch_mach (abfd, bfd_arch_mn10300, | |
010ac81f | 4710 | elf_mn10300_mach (elf_elfheader (abfd)->e_flags)); |
b34976b6 | 4711 | return TRUE; |
252b5132 RH |
4712 | } |
4713 | ||
4714 | /* Merge backend specific data from an object file to the output | |
4715 | object file when linking. */ | |
4716 | ||
603b7257 NC |
4717 | static bfd_boolean |
4718 | _bfd_mn10300_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
252b5132 RH |
4719 | { |
4720 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
4721 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 4722 | return TRUE; |
252b5132 RH |
4723 | |
4724 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
4725 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
4726 | { | |
4727 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
3b36f7e6 AM |
4728 | bfd_get_mach (ibfd))) |
4729 | return FALSE; | |
252b5132 RH |
4730 | } |
4731 | ||
b34976b6 | 4732 | return TRUE; |
252b5132 RH |
4733 | } |
4734 | ||
603b7257 NC |
4735 | #define PLT0_ENTRY_SIZE 15 |
4736 | #define PLT_ENTRY_SIZE 20 | |
4737 | #define PIC_PLT_ENTRY_SIZE 24 | |
03a12831 AO |
4738 | |
4739 | static const bfd_byte elf_mn10300_plt0_entry[PLT0_ENTRY_SIZE] = | |
4740 | { | |
4741 | 0xfc, 0xa0, 0, 0, 0, 0, /* mov (.got+8),a0 */ | |
4742 | 0xfe, 0xe, 0x10, 0, 0, 0, 0, /* mov (.got+4),r1 */ | |
4743 | 0xf0, 0xf4, /* jmp (a0) */ | |
4744 | }; | |
4745 | ||
4746 | static const bfd_byte elf_mn10300_plt_entry[PLT_ENTRY_SIZE] = | |
4747 | { | |
4748 | 0xfc, 0xa0, 0, 0, 0, 0, /* mov (nameN@GOT + .got),a0 */ | |
4749 | 0xf0, 0xf4, /* jmp (a0) */ | |
4750 | 0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */ | |
4751 | 0xdc, 0, 0, 0, 0, /* jmp .plt0 */ | |
4752 | }; | |
4753 | ||
4754 | static const bfd_byte elf_mn10300_pic_plt_entry[PIC_PLT_ENTRY_SIZE] = | |
4755 | { | |
4756 | 0xfc, 0x22, 0, 0, 0, 0, /* mov (nameN@GOT,a2),a0 */ | |
4757 | 0xf0, 0xf4, /* jmp (a0) */ | |
4758 | 0xfe, 8, 0, 0, 0, 0, 0, /* mov reloc-table-address,r0 */ | |
4759 | 0xf8, 0x22, 8, /* mov (8,a2),a0 */ | |
4760 | 0xfb, 0xa, 0x1a, 4, /* mov (4,a2),r1 */ | |
4761 | 0xf0, 0xf4, /* jmp (a0) */ | |
4762 | }; | |
4763 | ||
4764 | /* Return size of the first PLT entry. */ | |
4765 | #define elf_mn10300_sizeof_plt0(info) \ | |
4766 | (info->shared ? PIC_PLT_ENTRY_SIZE : PLT0_ENTRY_SIZE) | |
4767 | ||
4768 | /* Return size of a PLT entry. */ | |
4769 | #define elf_mn10300_sizeof_plt(info) \ | |
4770 | (info->shared ? PIC_PLT_ENTRY_SIZE : PLT_ENTRY_SIZE) | |
4771 | ||
4772 | /* Return offset of the PLT0 address in an absolute PLT entry. */ | |
4773 | #define elf_mn10300_plt_plt0_offset(info) 16 | |
4774 | ||
4775 | /* Return offset of the linker in PLT0 entry. */ | |
4776 | #define elf_mn10300_plt0_linker_offset(info) 2 | |
4777 | ||
4778 | /* Return offset of the GOT id in PLT0 entry. */ | |
4779 | #define elf_mn10300_plt0_gotid_offset(info) 9 | |
4780 | ||
603b7257 | 4781 | /* Return offset of the temporary in PLT entry. */ |
03a12831 AO |
4782 | #define elf_mn10300_plt_temp_offset(info) 8 |
4783 | ||
4784 | /* Return offset of the symbol in PLT entry. */ | |
4785 | #define elf_mn10300_plt_symbol_offset(info) 2 | |
4786 | ||
4787 | /* Return offset of the relocation in PLT entry. */ | |
4788 | #define elf_mn10300_plt_reloc_offset(info) 11 | |
4789 | ||
4790 | /* The name of the dynamic interpreter. This is put in the .interp | |
4791 | section. */ | |
4792 | ||
4793 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
4794 | ||
4795 | /* Create dynamic sections when linking against a dynamic object. */ | |
4796 | ||
4797 | static bfd_boolean | |
603b7257 | 4798 | _bfd_mn10300_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
03a12831 AO |
4799 | { |
4800 | flagword flags; | |
4801 | asection * s; | |
9c5bfbb7 | 4802 | const struct elf_backend_data * bed = get_elf_backend_data (abfd); |
3d4d4302 | 4803 | struct elf32_mn10300_link_hash_table *htab = elf32_mn10300_hash_table (info); |
03a12831 AO |
4804 | int ptralign = 0; |
4805 | ||
4806 | switch (bed->s->arch_size) | |
4807 | { | |
4808 | case 32: | |
4809 | ptralign = 2; | |
4810 | break; | |
4811 | ||
4812 | case 64: | |
4813 | ptralign = 3; | |
4814 | break; | |
4815 | ||
4816 | default: | |
4817 | bfd_set_error (bfd_error_bad_value); | |
4818 | return FALSE; | |
4819 | } | |
4820 | ||
4821 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
4822 | .rel[a].bss sections. */ | |
03a12831 AO |
4823 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
4824 | | SEC_LINKER_CREATED); | |
4825 | ||
3d4d4302 AM |
4826 | s = bfd_make_section_anyway_with_flags (abfd, |
4827 | (bed->default_use_rela_p | |
4828 | ? ".rela.plt" : ".rel.plt"), | |
4829 | flags | SEC_READONLY); | |
4830 | htab->root.srelplt = s; | |
03a12831 | 4831 | if (s == NULL |
03a12831 AO |
4832 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
4833 | return FALSE; | |
4834 | ||
4835 | if (! _bfd_mn10300_elf_create_got_section (abfd, info)) | |
4836 | return FALSE; | |
4837 | ||
03a12831 AO |
4838 | if (bed->want_dynbss) |
4839 | { | |
4840 | /* The .dynbss section is a place to put symbols which are defined | |
4841 | by dynamic objects, are referenced by regular objects, and are | |
4842 | not functions. We must allocate space for them in the process | |
4843 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
4844 | initialize them at run time. The linker script puts the .dynbss | |
4845 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
4846 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
4847 | SEC_ALLOC | SEC_LINKER_CREATED); | |
3496cb2a | 4848 | if (s == NULL) |
03a12831 AO |
4849 | return FALSE; |
4850 | ||
4851 | /* The .rel[a].bss section holds copy relocs. This section is not | |
4852 | normally needed. We need to create it here, though, so that the | |
4853 | linker will map it to an output section. We can't just create it | |
4854 | only if we need it, because we will not know whether we need it | |
4855 | until we have seen all the input files, and the first time the | |
4856 | main linker code calls BFD after examining all the input files | |
4857 | (size_dynamic_sections) the input sections have already been | |
4858 | mapped to the output sections. If the section turns out not to | |
4859 | be needed, we can discard it later. We will never need this | |
4860 | section when generating a shared object, since they do not use | |
4861 | copy relocs. */ | |
4862 | if (! info->shared) | |
4863 | { | |
3d4d4302 AM |
4864 | s = bfd_make_section_anyway_with_flags (abfd, |
4865 | (bed->default_use_rela_p | |
4866 | ? ".rela.bss" : ".rel.bss"), | |
4867 | flags | SEC_READONLY); | |
03a12831 | 4868 | if (s == NULL |
03a12831 AO |
4869 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
4870 | return FALSE; | |
4871 | } | |
4872 | } | |
4873 | ||
4874 | return TRUE; | |
4875 | } | |
4876 | \f | |
4877 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4878 | regular object. The current definition is in some section of the | |
4879 | dynamic object, but we're not including those sections. We have to | |
4880 | change the definition to something the rest of the link can | |
4881 | understand. */ | |
4882 | ||
4883 | static bfd_boolean | |
603b7257 NC |
4884 | _bfd_mn10300_elf_adjust_dynamic_symbol (struct bfd_link_info * info, |
4885 | struct elf_link_hash_entry * h) | |
03a12831 | 4886 | { |
3d4d4302 | 4887 | struct elf32_mn10300_link_hash_table *htab = elf32_mn10300_hash_table (info); |
03a12831 AO |
4888 | bfd * dynobj; |
4889 | asection * s; | |
03a12831 | 4890 | |
3d4d4302 | 4891 | dynobj = htab->root.dynobj; |
03a12831 AO |
4892 | |
4893 | /* Make sure we know what is going on here. */ | |
4894 | BFD_ASSERT (dynobj != NULL | |
f5385ebf | 4895 | && (h->needs_plt |
f6e332e6 | 4896 | || h->u.weakdef != NULL |
f5385ebf AM |
4897 | || (h->def_dynamic |
4898 | && h->ref_regular | |
4899 | && !h->def_regular))); | |
03a12831 AO |
4900 | |
4901 | /* If this is a function, put it in the procedure linkage table. We | |
4902 | will fill in the contents of the procedure linkage table later, | |
4903 | when we know the address of the .got section. */ | |
4904 | if (h->type == STT_FUNC | |
f5385ebf | 4905 | || h->needs_plt) |
03a12831 AO |
4906 | { |
4907 | if (! info->shared | |
f5385ebf AM |
4908 | && !h->def_dynamic |
4909 | && !h->ref_dynamic) | |
03a12831 AO |
4910 | { |
4911 | /* This case can occur if we saw a PLT reloc in an input | |
4912 | file, but the symbol was never referred to by a dynamic | |
4913 | object. In such a case, we don't actually need to build | |
4914 | a procedure linkage table, and we can just do a REL32 | |
4915 | reloc instead. */ | |
f5385ebf | 4916 | BFD_ASSERT (h->needs_plt); |
03a12831 AO |
4917 | return TRUE; |
4918 | } | |
4919 | ||
4920 | /* Make sure this symbol is output as a dynamic symbol. */ | |
4921 | if (h->dynindx == -1) | |
4922 | { | |
c152c796 | 4923 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
03a12831 AO |
4924 | return FALSE; |
4925 | } | |
4926 | ||
3d4d4302 | 4927 | s = htab->root.splt; |
03a12831 AO |
4928 | BFD_ASSERT (s != NULL); |
4929 | ||
4930 | /* If this is the first .plt entry, make room for the special | |
4931 | first entry. */ | |
eea6121a AM |
4932 | if (s->size == 0) |
4933 | s->size += elf_mn10300_sizeof_plt0 (info); | |
03a12831 AO |
4934 | |
4935 | /* If this symbol is not defined in a regular file, and we are | |
4936 | not generating a shared library, then set the symbol to this | |
4937 | location in the .plt. This is required to make function | |
4938 | pointers compare as equal between the normal executable and | |
4939 | the shared library. */ | |
4940 | if (! info->shared | |
f5385ebf | 4941 | && !h->def_regular) |
03a12831 AO |
4942 | { |
4943 | h->root.u.def.section = s; | |
eea6121a | 4944 | h->root.u.def.value = s->size; |
03a12831 AO |
4945 | } |
4946 | ||
eea6121a | 4947 | h->plt.offset = s->size; |
03a12831 AO |
4948 | |
4949 | /* Make room for this entry. */ | |
eea6121a | 4950 | s->size += elf_mn10300_sizeof_plt (info); |
03a12831 AO |
4951 | |
4952 | /* We also need to make an entry in the .got.plt section, which | |
4953 | will be placed in the .got section by the linker script. */ | |
3d4d4302 | 4954 | s = htab->root.sgotplt; |
03a12831 | 4955 | BFD_ASSERT (s != NULL); |
eea6121a | 4956 | s->size += 4; |
03a12831 AO |
4957 | |
4958 | /* We also need to make an entry in the .rela.plt section. */ | |
3d4d4302 | 4959 | s = bfd_get_linker_section (dynobj, ".rela.plt"); |
03a12831 | 4960 | BFD_ASSERT (s != NULL); |
eea6121a | 4961 | s->size += sizeof (Elf32_External_Rela); |
03a12831 AO |
4962 | |
4963 | return TRUE; | |
4964 | } | |
4965 | ||
4966 | /* If this is a weak symbol, and there is a real definition, the | |
4967 | processor independent code will have arranged for us to see the | |
4968 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 4969 | if (h->u.weakdef != NULL) |
03a12831 | 4970 | { |
f6e332e6 AM |
4971 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
4972 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
4973 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
4974 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
03a12831 AO |
4975 | return TRUE; |
4976 | } | |
4977 | ||
4978 | /* This is a reference to a symbol defined by a dynamic object which | |
4979 | is not a function. */ | |
4980 | ||
4981 | /* If we are creating a shared library, we must presume that the | |
4982 | only references to the symbol are via the global offset table. | |
4983 | For such cases we need not do anything here; the relocations will | |
4984 | be handled correctly by relocate_section. */ | |
4985 | if (info->shared) | |
4986 | return TRUE; | |
4987 | ||
4988 | /* If there are no references to this symbol that do not use the | |
4989 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 4990 | if (!h->non_got_ref) |
03a12831 AO |
4991 | return TRUE; |
4992 | ||
4993 | /* We must allocate the symbol in our .dynbss section, which will | |
4994 | become part of the .bss section of the executable. There will be | |
4995 | an entry for this symbol in the .dynsym section. The dynamic | |
4996 | object will contain position independent code, so all references | |
4997 | from the dynamic object to this symbol will go through the global | |
4998 | offset table. The dynamic linker will use the .dynsym entry to | |
4999 | determine the address it must put in the global offset table, so | |
5000 | both the dynamic object and the regular object will refer to the | |
5001 | same memory location for the variable. */ | |
5002 | ||
3d4d4302 | 5003 | s = bfd_get_linker_section (dynobj, ".dynbss"); |
03a12831 AO |
5004 | BFD_ASSERT (s != NULL); |
5005 | ||
5006 | /* We must generate a R_MN10300_COPY reloc to tell the dynamic linker to | |
5007 | copy the initial value out of the dynamic object and into the | |
5008 | runtime process image. We need to remember the offset into the | |
5009 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 5010 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
03a12831 AO |
5011 | { |
5012 | asection * srel; | |
5013 | ||
3d4d4302 | 5014 | srel = bfd_get_linker_section (dynobj, ".rela.bss"); |
03a12831 | 5015 | BFD_ASSERT (srel != NULL); |
eea6121a | 5016 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 5017 | h->needs_copy = 1; |
03a12831 AO |
5018 | } |
5019 | ||
027297b7 | 5020 | return _bfd_elf_adjust_dynamic_copy (h, s); |
03a12831 AO |
5021 | } |
5022 | ||
03a12831 AO |
5023 | /* Set the sizes of the dynamic sections. */ |
5024 | ||
5025 | static bfd_boolean | |
603b7257 NC |
5026 | _bfd_mn10300_elf_size_dynamic_sections (bfd * output_bfd, |
5027 | struct bfd_link_info * info) | |
03a12831 | 5028 | { |
0a22ae8e | 5029 | struct elf32_mn10300_link_hash_table *htab = elf32_mn10300_hash_table (info); |
03a12831 AO |
5030 | bfd * dynobj; |
5031 | asection * s; | |
5032 | bfd_boolean plt; | |
5033 | bfd_boolean relocs; | |
5034 | bfd_boolean reltext; | |
5035 | ||
3d4d4302 | 5036 | dynobj = htab->root.dynobj; |
03a12831 AO |
5037 | BFD_ASSERT (dynobj != NULL); |
5038 | ||
5039 | if (elf_hash_table (info)->dynamic_sections_created) | |
5040 | { | |
5041 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 5042 | if (info->executable) |
03a12831 | 5043 | { |
3d4d4302 | 5044 | s = bfd_get_linker_section (dynobj, ".interp"); |
03a12831 | 5045 | BFD_ASSERT (s != NULL); |
eea6121a | 5046 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
03a12831 AO |
5047 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
5048 | } | |
5049 | } | |
5050 | else | |
5051 | { | |
5052 | /* We may have created entries in the .rela.got section. | |
5053 | However, if we are not creating the dynamic sections, we will | |
5054 | not actually use these entries. Reset the size of .rela.got, | |
5055 | which will cause it to get stripped from the output file | |
5056 | below. */ | |
3d4d4302 | 5057 | s = htab->root.sgot; |
03a12831 | 5058 | if (s != NULL) |
eea6121a | 5059 | s->size = 0; |
03a12831 AO |
5060 | } |
5061 | ||
0a22ae8e NC |
5062 | if (htab->tls_ldm_got.refcount > 0) |
5063 | { | |
3d4d4302 | 5064 | s = bfd_get_linker_section (dynobj, ".rela.got"); |
0a22ae8e NC |
5065 | BFD_ASSERT (s != NULL); |
5066 | s->size += sizeof (Elf32_External_Rela); | |
5067 | } | |
5068 | ||
03a12831 AO |
5069 | /* The check_relocs and adjust_dynamic_symbol entry points have |
5070 | determined the sizes of the various dynamic sections. Allocate | |
5071 | memory for them. */ | |
5072 | plt = FALSE; | |
5073 | relocs = FALSE; | |
5074 | reltext = FALSE; | |
5075 | for (s = dynobj->sections; s != NULL; s = s->next) | |
5076 | { | |
5077 | const char * name; | |
03a12831 AO |
5078 | |
5079 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5080 | continue; | |
5081 | ||
5082 | /* It's OK to base decisions on the section name, because none | |
5083 | of the dynobj section names depend upon the input files. */ | |
5084 | name = bfd_get_section_name (dynobj, s); | |
5085 | ||
603b7257 | 5086 | if (streq (name, ".plt")) |
03a12831 | 5087 | { |
c456f082 AM |
5088 | /* Remember whether there is a PLT. */ |
5089 | plt = s->size != 0; | |
03a12831 | 5090 | } |
0112cd26 | 5091 | else if (CONST_STRNEQ (name, ".rela")) |
03a12831 | 5092 | { |
c456f082 | 5093 | if (s->size != 0) |
03a12831 AO |
5094 | { |
5095 | asection * target; | |
5096 | ||
5097 | /* Remember whether there are any reloc sections other | |
5098 | than .rela.plt. */ | |
603b7257 | 5099 | if (! streq (name, ".rela.plt")) |
03a12831 AO |
5100 | { |
5101 | const char * outname; | |
5102 | ||
5103 | relocs = TRUE; | |
5104 | ||
5105 | /* If this relocation section applies to a read only | |
5106 | section, then we probably need a DT_TEXTREL | |
5107 | entry. The entries in the .rela.plt section | |
5108 | really apply to the .got section, which we | |
5109 | created ourselves and so know is not readonly. */ | |
5110 | outname = bfd_get_section_name (output_bfd, | |
5111 | s->output_section); | |
5112 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
5113 | if (target != NULL | |
5114 | && (target->flags & SEC_READONLY) != 0 | |
5115 | && (target->flags & SEC_ALLOC) != 0) | |
5116 | reltext = TRUE; | |
5117 | } | |
5118 | ||
5119 | /* We use the reloc_count field as a counter if we need | |
5120 | to copy relocs into the output file. */ | |
5121 | s->reloc_count = 0; | |
5122 | } | |
5123 | } | |
0112cd26 | 5124 | else if (! CONST_STRNEQ (name, ".got") |
603b7257 | 5125 | && ! streq (name, ".dynbss")) |
03a12831 AO |
5126 | /* It's not one of our sections, so don't allocate space. */ |
5127 | continue; | |
5128 | ||
c456f082 | 5129 | if (s->size == 0) |
03a12831 | 5130 | { |
c456f082 AM |
5131 | /* If we don't need this section, strip it from the |
5132 | output file. This is mostly to handle .rela.bss and | |
5133 | .rela.plt. We must create both sections in | |
5134 | create_dynamic_sections, because they must be created | |
5135 | before the linker maps input sections to output | |
5136 | sections. The linker does that before | |
5137 | adjust_dynamic_symbol is called, and it is that | |
5138 | function which decides whether anything needs to go | |
5139 | into these sections. */ | |
8423293d | 5140 | s->flags |= SEC_EXCLUDE; |
03a12831 AO |
5141 | continue; |
5142 | } | |
5143 | ||
c456f082 AM |
5144 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
5145 | continue; | |
5146 | ||
03a12831 AO |
5147 | /* Allocate memory for the section contents. We use bfd_zalloc |
5148 | here in case unused entries are not reclaimed before the | |
5149 | section's contents are written out. This should not happen, | |
5150 | but this way if it does, we get a R_MN10300_NONE reloc | |
5151 | instead of garbage. */ | |
603b7257 | 5152 | s->contents = bfd_zalloc (dynobj, s->size); |
c456f082 | 5153 | if (s->contents == NULL) |
03a12831 AO |
5154 | return FALSE; |
5155 | } | |
5156 | ||
5157 | if (elf_hash_table (info)->dynamic_sections_created) | |
5158 | { | |
5159 | /* Add some entries to the .dynamic section. We fill in the | |
5160 | values later, in _bfd_mn10300_elf_finish_dynamic_sections, | |
5161 | but we must add the entries now so that we get the correct | |
5162 | size for the .dynamic section. The DT_DEBUG entry is filled | |
5163 | in by the dynamic linker and used by the debugger. */ | |
5164 | if (! info->shared) | |
5165 | { | |
5a580b3a | 5166 | if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0)) |
03a12831 AO |
5167 | return FALSE; |
5168 | } | |
5169 | ||
5170 | if (plt) | |
5171 | { | |
5a580b3a AM |
5172 | if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0) |
5173 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
5174 | || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA) | |
5175 | || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0)) | |
03a12831 AO |
5176 | return FALSE; |
5177 | } | |
5178 | ||
5179 | if (relocs) | |
5180 | { | |
5a580b3a AM |
5181 | if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0) |
5182 | || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0) | |
5183 | || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT, | |
5184 | sizeof (Elf32_External_Rela))) | |
03a12831 AO |
5185 | return FALSE; |
5186 | } | |
5187 | ||
5188 | if (reltext) | |
5189 | { | |
5a580b3a | 5190 | if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0)) |
03a12831 AO |
5191 | return FALSE; |
5192 | } | |
5193 | } | |
5194 | ||
5195 | return TRUE; | |
5196 | } | |
5197 | ||
5198 | /* Finish up dynamic symbol handling. We set the contents of various | |
5199 | dynamic sections here. */ | |
5200 | ||
5201 | static bfd_boolean | |
603b7257 NC |
5202 | _bfd_mn10300_elf_finish_dynamic_symbol (bfd * output_bfd, |
5203 | struct bfd_link_info * info, | |
5204 | struct elf_link_hash_entry * h, | |
5205 | Elf_Internal_Sym * sym) | |
03a12831 | 5206 | { |
3d4d4302 | 5207 | struct elf32_mn10300_link_hash_table *htab = elf32_mn10300_hash_table (info); |
03a12831 AO |
5208 | bfd * dynobj; |
5209 | ||
3d4d4302 | 5210 | dynobj = htab->root.dynobj; |
03a12831 AO |
5211 | |
5212 | if (h->plt.offset != (bfd_vma) -1) | |
5213 | { | |
5214 | asection * splt; | |
5215 | asection * sgot; | |
5216 | asection * srel; | |
5217 | bfd_vma plt_index; | |
5218 | bfd_vma got_offset; | |
5219 | Elf_Internal_Rela rel; | |
5220 | ||
5221 | /* This symbol has an entry in the procedure linkage table. Set | |
5222 | it up. */ | |
5223 | ||
5224 | BFD_ASSERT (h->dynindx != -1); | |
5225 | ||
3d4d4302 AM |
5226 | splt = htab->root.splt; |
5227 | sgot = htab->root.sgotplt; | |
5228 | srel = bfd_get_linker_section (dynobj, ".rela.plt"); | |
03a12831 AO |
5229 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
5230 | ||
5231 | /* Get the index in the procedure linkage table which | |
5232 | corresponds to this symbol. This is the index of this symbol | |
5233 | in all the symbols for which we are making plt entries. The | |
5234 | first entry in the procedure linkage table is reserved. */ | |
5235 | plt_index = ((h->plt.offset - elf_mn10300_sizeof_plt0 (info)) | |
5236 | / elf_mn10300_sizeof_plt (info)); | |
5237 | ||
5238 | /* Get the offset into the .got table of the entry that | |
5239 | corresponds to this function. Each .got entry is 4 bytes. | |
5240 | The first three are reserved. */ | |
5241 | got_offset = (plt_index + 3) * 4; | |
5242 | ||
5243 | /* Fill in the entry in the procedure linkage table. */ | |
5244 | if (! info->shared) | |
5245 | { | |
5246 | memcpy (splt->contents + h->plt.offset, elf_mn10300_plt_entry, | |
5247 | elf_mn10300_sizeof_plt (info)); | |
5248 | bfd_put_32 (output_bfd, | |
5249 | (sgot->output_section->vma | |
5250 | + sgot->output_offset | |
5251 | + got_offset), | |
5252 | (splt->contents + h->plt.offset | |
5253 | + elf_mn10300_plt_symbol_offset (info))); | |
5254 | ||
5255 | bfd_put_32 (output_bfd, | |
5256 | (1 - h->plt.offset - elf_mn10300_plt_plt0_offset (info)), | |
5257 | (splt->contents + h->plt.offset | |
5258 | + elf_mn10300_plt_plt0_offset (info))); | |
5259 | } | |
5260 | else | |
5261 | { | |
5262 | memcpy (splt->contents + h->plt.offset, elf_mn10300_pic_plt_entry, | |
5263 | elf_mn10300_sizeof_plt (info)); | |
5264 | ||
5265 | bfd_put_32 (output_bfd, got_offset, | |
5266 | (splt->contents + h->plt.offset | |
5267 | + elf_mn10300_plt_symbol_offset (info))); | |
5268 | } | |
5269 | ||
5270 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), | |
5271 | (splt->contents + h->plt.offset | |
5272 | + elf_mn10300_plt_reloc_offset (info))); | |
5273 | ||
5274 | /* Fill in the entry in the global offset table. */ | |
5275 | bfd_put_32 (output_bfd, | |
5276 | (splt->output_section->vma | |
5277 | + splt->output_offset | |
5278 | + h->plt.offset | |
5279 | + elf_mn10300_plt_temp_offset (info)), | |
5280 | sgot->contents + got_offset); | |
5281 | ||
5282 | /* Fill in the entry in the .rela.plt section. */ | |
5283 | rel.r_offset = (sgot->output_section->vma | |
5284 | + sgot->output_offset | |
5285 | + got_offset); | |
5286 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_JMP_SLOT); | |
5287 | rel.r_addend = 0; | |
5288 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
560e09e9 NC |
5289 | (bfd_byte *) ((Elf32_External_Rela *) srel->contents |
5290 | + plt_index)); | |
03a12831 | 5291 | |
f5385ebf | 5292 | if (!h->def_regular) |
03a12831 AO |
5293 | /* Mark the symbol as undefined, rather than as defined in |
5294 | the .plt section. Leave the value alone. */ | |
5295 | sym->st_shndx = SHN_UNDEF; | |
5296 | } | |
5297 | ||
5298 | if (h->got.offset != (bfd_vma) -1) | |
5299 | { | |
5300 | asection * sgot; | |
5301 | asection * srel; | |
5302 | Elf_Internal_Rela rel; | |
5303 | ||
5304 | /* This symbol has an entry in the global offset table. Set it up. */ | |
3d4d4302 AM |
5305 | sgot = htab->root.sgot; |
5306 | srel = bfd_get_linker_section (dynobj, ".rela.got"); | |
03a12831 AO |
5307 | BFD_ASSERT (sgot != NULL && srel != NULL); |
5308 | ||
5309 | rel.r_offset = (sgot->output_section->vma | |
5310 | + sgot->output_offset | |
603b7257 | 5311 | + (h->got.offset & ~1)); |
03a12831 | 5312 | |
0a22ae8e | 5313 | switch (elf_mn10300_hash_entry (h)->tls_type) |
03a12831 | 5314 | { |
0a22ae8e | 5315 | case GOT_TLS_GD: |
03a12831 | 5316 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
0a22ae8e NC |
5317 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset + 4); |
5318 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_TLS_DTPMOD); | |
5319 | rel.r_addend = 0; | |
5320 | bfd_elf32_swap_reloca_out (output_bfd, & rel, | |
5321 | (bfd_byte *) ((Elf32_External_Rela *) srel->contents | |
5322 | + srel->reloc_count)); | |
5323 | ++ srel->reloc_count; | |
5324 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_TLS_DTPOFF); | |
5325 | rel.r_offset += 4; | |
03a12831 | 5326 | rel.r_addend = 0; |
0a22ae8e NC |
5327 | break; |
5328 | ||
5329 | case GOT_TLS_IE: | |
5330 | /* We originally stored the addend in the GOT, but at this | |
5331 | point, we want to move it to the reloc instead as that's | |
5332 | where the dynamic linker wants it. */ | |
5333 | rel.r_addend = bfd_get_32 (output_bfd, sgot->contents + h->got.offset); | |
5334 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
5335 | if (h->dynindx == -1) | |
5336 | rel.r_info = ELF32_R_INFO (0, R_MN10300_TLS_TPOFF); | |
5337 | else | |
5338 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_TLS_TPOFF); | |
5339 | break; | |
5340 | ||
5341 | default: | |
5342 | /* If this is a -Bsymbolic link, and the symbol is defined | |
5343 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
5344 | the symbol was forced to be local because of a version file. | |
5345 | The entry in the global offset table will already have been | |
5346 | initialized in the relocate_section function. */ | |
5347 | if (info->shared | |
5348 | && (info->symbolic || h->dynindx == -1) | |
5349 | && h->def_regular) | |
5350 | { | |
5351 | rel.r_info = ELF32_R_INFO (0, R_MN10300_RELATIVE); | |
5352 | rel.r_addend = (h->root.u.def.value | |
5353 | + h->root.u.def.section->output_section->vma | |
5354 | + h->root.u.def.section->output_offset); | |
5355 | } | |
5356 | else | |
5357 | { | |
5358 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
5359 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_GLOB_DAT); | |
5360 | rel.r_addend = 0; | |
5361 | } | |
03a12831 AO |
5362 | } |
5363 | ||
0a22ae8e NC |
5364 | if (ELF32_R_TYPE (rel.r_info) != R_MN10300_NONE) |
5365 | { | |
5366 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
5367 | (bfd_byte *) ((Elf32_External_Rela *) srel->contents | |
5368 | + srel->reloc_count)); | |
5369 | ++ srel->reloc_count; | |
5370 | } | |
03a12831 AO |
5371 | } |
5372 | ||
f5385ebf | 5373 | if (h->needs_copy) |
03a12831 AO |
5374 | { |
5375 | asection * s; | |
5376 | Elf_Internal_Rela rel; | |
5377 | ||
5378 | /* This symbol needs a copy reloc. Set it up. */ | |
5379 | BFD_ASSERT (h->dynindx != -1 | |
5380 | && (h->root.type == bfd_link_hash_defined | |
5381 | || h->root.type == bfd_link_hash_defweak)); | |
5382 | ||
3d4d4302 | 5383 | s = bfd_get_linker_section (dynobj, ".rela.bss"); |
03a12831 AO |
5384 | BFD_ASSERT (s != NULL); |
5385 | ||
5386 | rel.r_offset = (h->root.u.def.value | |
5387 | + h->root.u.def.section->output_section->vma | |
5388 | + h->root.u.def.section->output_offset); | |
5389 | rel.r_info = ELF32_R_INFO (h->dynindx, R_MN10300_COPY); | |
5390 | rel.r_addend = 0; | |
603b7257 | 5391 | bfd_elf32_swap_reloca_out (output_bfd, & rel, |
560e09e9 NC |
5392 | (bfd_byte *) ((Elf32_External_Rela *) s->contents |
5393 | + s->reloc_count)); | |
03a12831 AO |
5394 | ++ s->reloc_count; |
5395 | } | |
5396 | ||
5397 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
9637f6ef | 5398 | if (h == elf_hash_table (info)->hdynamic |
22edb2f1 | 5399 | || h == elf_hash_table (info)->hgot) |
03a12831 AO |
5400 | sym->st_shndx = SHN_ABS; |
5401 | ||
5402 | return TRUE; | |
5403 | } | |
5404 | ||
5405 | /* Finish up the dynamic sections. */ | |
5406 | ||
5407 | static bfd_boolean | |
603b7257 NC |
5408 | _bfd_mn10300_elf_finish_dynamic_sections (bfd * output_bfd, |
5409 | struct bfd_link_info * info) | |
03a12831 AO |
5410 | { |
5411 | bfd * dynobj; | |
5412 | asection * sgot; | |
5413 | asection * sdyn; | |
3d4d4302 | 5414 | struct elf32_mn10300_link_hash_table *htab = elf32_mn10300_hash_table (info); |
03a12831 | 5415 | |
3d4d4302 AM |
5416 | dynobj = htab->root.dynobj; |
5417 | sgot = htab->root.sgotplt; | |
03a12831 | 5418 | BFD_ASSERT (sgot != NULL); |
3d4d4302 | 5419 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
03a12831 AO |
5420 | |
5421 | if (elf_hash_table (info)->dynamic_sections_created) | |
5422 | { | |
5423 | asection * splt; | |
5424 | Elf32_External_Dyn * dyncon; | |
5425 | Elf32_External_Dyn * dynconend; | |
5426 | ||
5427 | BFD_ASSERT (sdyn != NULL); | |
5428 | ||
5429 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 5430 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
03a12831 AO |
5431 | |
5432 | for (; dyncon < dynconend; dyncon++) | |
5433 | { | |
5434 | Elf_Internal_Dyn dyn; | |
5435 | const char * name; | |
5436 | asection * s; | |
5437 | ||
5438 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
5439 | ||
5440 | switch (dyn.d_tag) | |
5441 | { | |
5442 | default: | |
5443 | break; | |
5444 | ||
5445 | case DT_PLTGOT: | |
5446 | name = ".got"; | |
5447 | goto get_vma; | |
5448 | ||
5449 | case DT_JMPREL: | |
5450 | name = ".rela.plt"; | |
5451 | get_vma: | |
5452 | s = bfd_get_section_by_name (output_bfd, name); | |
5453 | BFD_ASSERT (s != NULL); | |
5454 | dyn.d_un.d_ptr = s->vma; | |
5455 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
5456 | break; | |
5457 | ||
5458 | case DT_PLTRELSZ: | |
5459 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
5460 | BFD_ASSERT (s != NULL); | |
eea6121a | 5461 | dyn.d_un.d_val = s->size; |
03a12831 AO |
5462 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
5463 | break; | |
5464 | ||
5465 | case DT_RELASZ: | |
5466 | /* My reading of the SVR4 ABI indicates that the | |
5467 | procedure linkage table relocs (DT_JMPREL) should be | |
5468 | included in the overall relocs (DT_RELA). This is | |
5469 | what Solaris does. However, UnixWare can not handle | |
5470 | that case. Therefore, we override the DT_RELASZ entry | |
5471 | here to make it not include the JMPREL relocs. Since | |
5472 | the linker script arranges for .rela.plt to follow all | |
5473 | other relocation sections, we don't have to worry | |
5474 | about changing the DT_RELA entry. */ | |
5475 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
5476 | if (s != NULL) | |
eea6121a | 5477 | dyn.d_un.d_val -= s->size; |
03a12831 AO |
5478 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
5479 | break; | |
5480 | } | |
5481 | } | |
5482 | ||
5483 | /* Fill in the first entry in the procedure linkage table. */ | |
3d4d4302 | 5484 | splt = htab->root.splt; |
eea6121a | 5485 | if (splt && splt->size > 0) |
03a12831 AO |
5486 | { |
5487 | if (info->shared) | |
5488 | { | |
5489 | memcpy (splt->contents, elf_mn10300_pic_plt_entry, | |
5490 | elf_mn10300_sizeof_plt (info)); | |
5491 | } | |
5492 | else | |
5493 | { | |
5494 | memcpy (splt->contents, elf_mn10300_plt0_entry, PLT0_ENTRY_SIZE); | |
5495 | bfd_put_32 (output_bfd, | |
5496 | sgot->output_section->vma + sgot->output_offset + 4, | |
5497 | splt->contents + elf_mn10300_plt0_gotid_offset (info)); | |
5498 | bfd_put_32 (output_bfd, | |
5499 | sgot->output_section->vma + sgot->output_offset + 8, | |
5500 | splt->contents + elf_mn10300_plt0_linker_offset (info)); | |
5501 | } | |
5502 | ||
5503 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
5504 | really seem like the right value. */ | |
5505 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
0a22ae8e NC |
5506 | |
5507 | /* UnixWare sets the entsize of .plt to 4, but this is incorrect | |
5508 | as it means that the size of the PLT0 section (15 bytes) is not | |
5509 | a multiple of the sh_entsize. Some ELF tools flag this as an | |
5510 | error. We could pad PLT0 to 16 bytes, but that would introduce | |
5511 | compatibilty issues with previous toolchains, so instead we | |
5512 | just set the entry size to 1. */ | |
5513 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 1; | |
03a12831 AO |
5514 | } |
5515 | } | |
5516 | ||
5517 | /* Fill in the first three entries in the global offset table. */ | |
eea6121a | 5518 | if (sgot->size > 0) |
03a12831 AO |
5519 | { |
5520 | if (sdyn == NULL) | |
5521 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
5522 | else | |
5523 | bfd_put_32 (output_bfd, | |
5524 | sdyn->output_section->vma + sdyn->output_offset, | |
5525 | sgot->contents); | |
5526 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
5527 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
5528 | } | |
5529 | ||
5530 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
5531 | ||
5532 | return TRUE; | |
5533 | } | |
5534 | ||
a873f25a AO |
5535 | /* Classify relocation types, such that combreloc can sort them |
5536 | properly. */ | |
5537 | ||
5538 | static enum elf_reloc_type_class | |
7e612e98 AM |
5539 | _bfd_mn10300_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
5540 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
5541 | const Elf_Internal_Rela *rela) | |
a873f25a AO |
5542 | { |
5543 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
5544 | { | |
603b7257 NC |
5545 | case R_MN10300_RELATIVE: return reloc_class_relative; |
5546 | case R_MN10300_JMP_SLOT: return reloc_class_plt; | |
5547 | case R_MN10300_COPY: return reloc_class_copy; | |
5548 | default: return reloc_class_normal; | |
a873f25a AO |
5549 | } |
5550 | } | |
5551 | ||
997fbe36 NC |
5552 | /* Allocate space for an MN10300 extension to the bfd elf data structure. */ |
5553 | ||
5554 | static bfd_boolean | |
5555 | mn10300_elf_mkobject (bfd *abfd) | |
5556 | { | |
0a22ae8e | 5557 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_mn10300_obj_tdata), |
997fbe36 NC |
5558 | MN10300_ELF_DATA); |
5559 | } | |
5560 | ||
5561 | #define bfd_elf32_mkobject mn10300_elf_mkobject | |
5562 | ||
73c3cd1c | 5563 | #ifndef ELF_ARCH |
252b5132 RH |
5564 | #define TARGET_LITTLE_SYM bfd_elf32_mn10300_vec |
5565 | #define TARGET_LITTLE_NAME "elf32-mn10300" | |
5566 | #define ELF_ARCH bfd_arch_mn10300 | |
ae95ffa6 | 5567 | #define ELF_TARGET_ID MN10300_ELF_DATA |
6f4514dc AO |
5568 | #define ELF_MACHINE_CODE EM_MN10300 |
5569 | #define ELF_MACHINE_ALT1 EM_CYGNUS_MN10300 | |
252b5132 | 5570 | #define ELF_MAXPAGESIZE 0x1000 |
73c3cd1c | 5571 | #endif |
252b5132 RH |
5572 | |
5573 | #define elf_info_to_howto mn10300_info_to_howto | |
5574 | #define elf_info_to_howto_rel 0 | |
5575 | #define elf_backend_can_gc_sections 1 | |
b491616a | 5576 | #define elf_backend_rela_normal 1 |
252b5132 RH |
5577 | #define elf_backend_check_relocs mn10300_elf_check_relocs |
5578 | #define elf_backend_gc_mark_hook mn10300_elf_gc_mark_hook | |
5579 | #define elf_backend_relocate_section mn10300_elf_relocate_section | |
5580 | #define bfd_elf32_bfd_relax_section mn10300_elf_relax_section | |
5581 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
5582 | mn10300_elf_get_relocated_section_contents | |
5583 | #define bfd_elf32_bfd_link_hash_table_create \ | |
5584 | elf32_mn10300_link_hash_table_create | |
e2d34d7d DJ |
5585 | #define bfd_elf32_bfd_link_hash_table_free \ |
5586 | elf32_mn10300_link_hash_table_free | |
252b5132 | 5587 | |
73c3cd1c | 5588 | #ifndef elf_symbol_leading_char |
252b5132 | 5589 | #define elf_symbol_leading_char '_' |
73c3cd1c | 5590 | #endif |
252b5132 RH |
5591 | |
5592 | /* So we can set bits in e_flags. */ | |
5593 | #define elf_backend_final_write_processing \ | |
3b36f7e6 AM |
5594 | _bfd_mn10300_elf_final_write_processing |
5595 | #define elf_backend_object_p _bfd_mn10300_elf_object_p | |
252b5132 RH |
5596 | |
5597 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
3b36f7e6 | 5598 | _bfd_mn10300_elf_merge_private_bfd_data |
252b5132 | 5599 | |
03a12831 AO |
5600 | #define elf_backend_can_gc_sections 1 |
5601 | #define elf_backend_create_dynamic_sections \ | |
5602 | _bfd_mn10300_elf_create_dynamic_sections | |
5603 | #define elf_backend_adjust_dynamic_symbol \ | |
5604 | _bfd_mn10300_elf_adjust_dynamic_symbol | |
5605 | #define elf_backend_size_dynamic_sections \ | |
5606 | _bfd_mn10300_elf_size_dynamic_sections | |
74541ad4 AM |
5607 | #define elf_backend_omit_section_dynsym \ |
5608 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
03a12831 AO |
5609 | #define elf_backend_finish_dynamic_symbol \ |
5610 | _bfd_mn10300_elf_finish_dynamic_symbol | |
5611 | #define elf_backend_finish_dynamic_sections \ | |
5612 | _bfd_mn10300_elf_finish_dynamic_sections | |
0a22ae8e NC |
5613 | #define elf_backend_copy_indirect_symbol \ |
5614 | _bfd_mn10300_copy_indirect_symbol | |
a873f25a AO |
5615 | #define elf_backend_reloc_type_class \ |
5616 | _bfd_mn10300_elf_reloc_type_class | |
5617 | ||
03a12831 AO |
5618 | #define elf_backend_want_got_plt 1 |
5619 | #define elf_backend_plt_readonly 1 | |
5620 | #define elf_backend_want_plt_sym 0 | |
5621 | #define elf_backend_got_header_size 12 | |
03a12831 | 5622 | |
252b5132 | 5623 | #include "elf32-target.h" |