Commit | Line | Data |
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60bcf0fa | 1 | /* Motorola 68HC11-specific support for 32-bit ELF |
dae78fb0 SC |
2 | Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc. |
3 | Contributed by Stephane Carrez (stcarrez@nerim.fr) | |
60bcf0fa NC |
4 | (Heavily copied from the D10V port by Martin Hunt (hunt@cygnus.com)) |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
1fd03b5a | 24 | #include "bfdlink.h" |
60bcf0fa NC |
25 | #include "libbfd.h" |
26 | #include "elf-bfd.h" | |
27 | #include "elf/m68hc11.h" | |
28 | ||
29 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup | |
30 | PARAMS ((bfd * abfd, bfd_reloc_code_real_type code)); | |
31 | static void m68hc11_info_to_howto_rel | |
32 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); | |
33 | ||
dae78fb0 SC |
34 | static bfd_reloc_status_type m68hc11_elf_ignore_reloc |
35 | PARAMS ((bfd *abfd, arelent *reloc_entry, | |
36 | asymbol *symbol, PTR data, asection *input_section, | |
37 | bfd *output_bfd, char **error_message)); | |
38 | ||
9b701e44 SC |
39 | /* GC mark and sweep. */ |
40 | static asection *elf32_m68hc11_gc_mark_hook | |
41 | PARAMS ((bfd *abfd, struct bfd_link_info *info, | |
42 | Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, | |
43 | Elf_Internal_Sym *sym)); | |
44 | static boolean elf32_m68hc11_gc_sweep_hook | |
45 | PARAMS ((bfd *abfd, struct bfd_link_info *info, | |
46 | asection *sec, const Elf_Internal_Rela *relocs)); | |
1fd03b5a SC |
47 | static boolean elf32_m68hc11_check_relocs |
48 | PARAMS ((bfd * abfd, struct bfd_link_info * info, | |
49 | asection * sec, const Elf_Internal_Rela * relocs)); | |
50 | static boolean elf32_m68hc11_relocate_section | |
51 | PARAMS ((bfd *output_bfd, struct bfd_link_info *info, | |
52 | bfd *input_bfd, asection *input_section, | |
53 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
54 | Elf_Internal_Sym *local_syms, asection **local_sections)); | |
55 | static boolean m68hc11_elf_relax_section | |
56 | PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *)); | |
57 | static void m68hc11_elf_relax_delete_bytes | |
58 | PARAMS ((bfd *abfd, asection *sec, bfd_vma addr, int count)); | |
59 | static void m68hc11_relax_group | |
60 | PARAMS ((bfd *abfd, asection *sec, bfd_byte *contents, | |
61 | unsigned value, unsigned long offset, unsigned long end_group)); | |
62 | static int compare_reloc PARAMS ((const void*, const void*)); | |
63 | ||
9b701e44 | 64 | |
96405e3c SC |
65 | boolean _bfd_m68hc11_elf_merge_private_bfd_data PARAMS ((bfd*, bfd*)); |
66 | boolean _bfd_m68hc11_elf_set_private_flags PARAMS ((bfd*, flagword)); | |
67 | boolean _bfd_m68hc11_elf_print_private_bfd_data PARAMS ((bfd*, PTR)); | |
68 | ||
60bcf0fa NC |
69 | /* Use REL instead of RELA to save space */ |
70 | #define USE_REL | |
71 | ||
72 | /* The Motorola 68HC11 microcontroler only addresses 64Kb. | |
73 | We must handle 8 and 16-bit relocations. The 32-bit relocation | |
74 | is defined but not used except by gas when -gstabs is used (which | |
75 | is wrong). | |
76 | The 3-bit and 16-bit PC rel relocation is only used by 68HC12. */ | |
77 | static reloc_howto_type elf_m68hc11_howto_table[] = { | |
78 | /* This reloc does nothing. */ | |
79 | HOWTO (R_M68HC11_NONE, /* type */ | |
80 | 0, /* rightshift */ | |
81 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
82 | 32, /* bitsize */ | |
83 | false, /* pc_relative */ | |
84 | 0, /* bitpos */ | |
7a897be4 | 85 | complain_overflow_dont,/* complain_on_overflow */ |
60bcf0fa NC |
86 | bfd_elf_generic_reloc, /* special_function */ |
87 | "R_M68HC11_NONE", /* name */ | |
88 | false, /* partial_inplace */ | |
89 | 0, /* src_mask */ | |
90 | 0, /* dst_mask */ | |
91 | false), /* pcrel_offset */ | |
92 | ||
93 | /* A 8 bit absolute relocation */ | |
94 | HOWTO (R_M68HC11_8, /* type */ | |
95 | 0, /* rightshift */ | |
96 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
97 | 8, /* bitsize */ | |
98 | false, /* pc_relative */ | |
99 | 0, /* bitpos */ | |
100 | complain_overflow_bitfield, /* complain_on_overflow */ | |
101 | bfd_elf_generic_reloc, /* special_function */ | |
102 | "R_M68HC11_8", /* name */ | |
103 | false, /* partial_inplace */ | |
104 | 0x00ff, /* src_mask */ | |
105 | 0x00ff, /* dst_mask */ | |
106 | false), /* pcrel_offset */ | |
107 | ||
108 | /* A 8 bit absolute relocation (upper address) */ | |
109 | HOWTO (R_M68HC11_HI8, /* type */ | |
110 | 8, /* rightshift */ | |
111 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
112 | 8, /* bitsize */ | |
113 | false, /* pc_relative */ | |
114 | 0, /* bitpos */ | |
115 | complain_overflow_bitfield, /* complain_on_overflow */ | |
116 | bfd_elf_generic_reloc, /* special_function */ | |
117 | "R_M68HC11_HI8", /* name */ | |
118 | false, /* partial_inplace */ | |
119 | 0x00ff, /* src_mask */ | |
120 | 0x00ff, /* dst_mask */ | |
121 | false), /* pcrel_offset */ | |
122 | ||
123 | /* A 8 bit absolute relocation (upper address) */ | |
124 | HOWTO (R_M68HC11_LO8, /* type */ | |
125 | 0, /* rightshift */ | |
126 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
127 | 8, /* bitsize */ | |
128 | false, /* pc_relative */ | |
129 | 0, /* bitpos */ | |
130 | complain_overflow_dont, /* complain_on_overflow */ | |
131 | bfd_elf_generic_reloc, /* special_function */ | |
132 | "R_M68HC11_LO8", /* name */ | |
133 | false, /* partial_inplace */ | |
134 | 0x00ff, /* src_mask */ | |
135 | 0x00ff, /* dst_mask */ | |
136 | false), /* pcrel_offset */ | |
137 | ||
138 | /* A 8 bit PC-rel relocation */ | |
139 | HOWTO (R_M68HC11_PCREL_8, /* type */ | |
140 | 0, /* rightshift */ | |
141 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
142 | 8, /* bitsize */ | |
143 | true, /* pc_relative */ | |
144 | 0, /* bitpos */ | |
145 | complain_overflow_bitfield, /* complain_on_overflow */ | |
146 | bfd_elf_generic_reloc, /* special_function */ | |
147 | "R_M68HC11_PCREL_8", /* name */ | |
148 | false, /* partial_inplace */ | |
dae78fb0 | 149 | 0x00ff, /* src_mask */ |
60bcf0fa NC |
150 | 0x00ff, /* dst_mask */ |
151 | false), /* pcrel_offset */ | |
152 | ||
153 | /* A 16 bit absolute relocation */ | |
154 | HOWTO (R_M68HC11_16, /* type */ | |
155 | 0, /* rightshift */ | |
156 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
157 | 16, /* bitsize */ | |
158 | false, /* pc_relative */ | |
159 | 0, /* bitpos */ | |
160 | complain_overflow_dont /*bitfield */ , /* complain_on_overflow */ | |
161 | bfd_elf_generic_reloc, /* special_function */ | |
162 | "R_M68HC11_16", /* name */ | |
163 | false, /* partial_inplace */ | |
164 | 0xffff, /* src_mask */ | |
165 | 0xffff, /* dst_mask */ | |
166 | false), /* pcrel_offset */ | |
167 | ||
168 | /* A 32 bit absolute relocation. This one is never used for the | |
169 | code relocation. It's used by gas for -gstabs generation. */ | |
170 | HOWTO (R_M68HC11_32, /* type */ | |
171 | 0, /* rightshift */ | |
172 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
173 | 32, /* bitsize */ | |
174 | false, /* pc_relative */ | |
175 | 0, /* bitpos */ | |
176 | complain_overflow_bitfield, /* complain_on_overflow */ | |
177 | bfd_elf_generic_reloc, /* special_function */ | |
178 | "R_M68HC11_32", /* name */ | |
179 | false, /* partial_inplace */ | |
180 | 0xffffffff, /* src_mask */ | |
181 | 0xffffffff, /* dst_mask */ | |
182 | false), /* pcrel_offset */ | |
183 | ||
184 | /* A 3 bit absolute relocation */ | |
185 | HOWTO (R_M68HC11_3B, /* type */ | |
186 | 0, /* rightshift */ | |
187 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
188 | 3, /* bitsize */ | |
189 | false, /* pc_relative */ | |
190 | 0, /* bitpos */ | |
191 | complain_overflow_bitfield, /* complain_on_overflow */ | |
192 | bfd_elf_generic_reloc, /* special_function */ | |
193 | "R_M68HC11_4B", /* name */ | |
194 | false, /* partial_inplace */ | |
195 | 0x003, /* src_mask */ | |
196 | 0x003, /* dst_mask */ | |
197 | false), /* pcrel_offset */ | |
198 | ||
199 | /* A 16 bit PC-rel relocation */ | |
200 | HOWTO (R_M68HC11_PCREL_16, /* type */ | |
201 | 0, /* rightshift */ | |
202 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
203 | 16, /* bitsize */ | |
204 | true, /* pc_relative */ | |
205 | 0, /* bitpos */ | |
206 | complain_overflow_dont, /* complain_on_overflow */ | |
207 | bfd_elf_generic_reloc, /* special_function */ | |
208 | "R_M68HC11_PCREL_16", /* name */ | |
209 | false, /* partial_inplace */ | |
dae78fb0 | 210 | 0xffff, /* src_mask */ |
60bcf0fa NC |
211 | 0xffff, /* dst_mask */ |
212 | false), /* pcrel_offset */ | |
213 | ||
214 | /* GNU extension to record C++ vtable hierarchy */ | |
215 | HOWTO (R_M68HC11_GNU_VTINHERIT, /* type */ | |
216 | 0, /* rightshift */ | |
217 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
218 | 0, /* bitsize */ | |
219 | false, /* pc_relative */ | |
220 | 0, /* bitpos */ | |
221 | complain_overflow_dont, /* complain_on_overflow */ | |
222 | NULL, /* special_function */ | |
223 | "R_M68HC11_GNU_VTINHERIT", /* name */ | |
224 | false, /* partial_inplace */ | |
225 | 0, /* src_mask */ | |
226 | 0, /* dst_mask */ | |
227 | false), /* pcrel_offset */ | |
228 | ||
229 | /* GNU extension to record C++ vtable member usage */ | |
230 | HOWTO (R_M68HC11_GNU_VTENTRY, /* type */ | |
231 | 0, /* rightshift */ | |
232 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
233 | 0, /* bitsize */ | |
234 | false, /* pc_relative */ | |
235 | 0, /* bitpos */ | |
236 | complain_overflow_dont, /* complain_on_overflow */ | |
237 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
238 | "R_M68HC11_GNU_VTENTRY", /* name */ | |
239 | false, /* partial_inplace */ | |
240 | 0, /* src_mask */ | |
241 | 0, /* dst_mask */ | |
242 | false), /* pcrel_offset */ | |
dae78fb0 | 243 | |
7a897be4 SC |
244 | /* A 24 bit relocation */ |
245 | HOWTO (R_M68HC11_24, /* type */ | |
246 | 0, /* rightshift */ | |
247 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
248 | 24, /* bitsize */ | |
249 | false, /* pc_relative */ | |
250 | 0, /* bitpos */ | |
251 | complain_overflow_bitfield, /* complain_on_overflow */ | |
252 | bfd_elf_generic_reloc, /* special_function */ | |
253 | "R_M68HC11_24", /* name */ | |
254 | false, /* partial_inplace */ | |
255 | 0xffff, /* src_mask */ | |
256 | 0xffff, /* dst_mask */ | |
257 | false), /* pcrel_offset */ | |
258 | ||
259 | /* A 16-bit low relocation */ | |
260 | HOWTO (R_M68HC11_LO16, /* type */ | |
261 | 0, /* rightshift */ | |
262 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
263 | 16, /* bitsize */ | |
264 | false, /* pc_relative */ | |
265 | 0, /* bitpos */ | |
266 | complain_overflow_bitfield, /* complain_on_overflow */ | |
267 | bfd_elf_generic_reloc, /* special_function */ | |
268 | "R_M68HC11_LO16", /* name */ | |
269 | false, /* partial_inplace */ | |
270 | 0xffff, /* src_mask */ | |
271 | 0xffff, /* dst_mask */ | |
272 | false), /* pcrel_offset */ | |
273 | ||
274 | /* A page relocation */ | |
275 | HOWTO (R_M68HC11_PAGE, /* type */ | |
276 | 0, /* rightshift */ | |
277 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
278 | 8, /* bitsize */ | |
279 | false, /* pc_relative */ | |
280 | 0, /* bitpos */ | |
281 | complain_overflow_bitfield, /* complain_on_overflow */ | |
282 | bfd_elf_generic_reloc, /* special_function */ | |
283 | "R_M68HC11_PAGE", /* name */ | |
284 | false, /* partial_inplace */ | |
285 | 0x00ff, /* src_mask */ | |
286 | 0x00ff, /* dst_mask */ | |
287 | false), /* pcrel_offset */ | |
288 | ||
dae78fb0 SC |
289 | EMPTY_HOWTO (14), |
290 | EMPTY_HOWTO (15), | |
291 | EMPTY_HOWTO (16), | |
292 | EMPTY_HOWTO (17), | |
293 | EMPTY_HOWTO (18), | |
294 | EMPTY_HOWTO (19), | |
295 | ||
296 | /* Mark beginning of a jump instruction (any form). */ | |
297 | HOWTO (R_M68HC11_RL_JUMP, /* type */ | |
298 | 0, /* rightshift */ | |
299 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
300 | 0, /* bitsize */ | |
301 | false, /* pc_relative */ | |
302 | 0, /* bitpos */ | |
303 | complain_overflow_dont, /* complain_on_overflow */ | |
304 | m68hc11_elf_ignore_reloc, /* special_function */ | |
305 | "R_M68HC11_RL_JUMP", /* name */ | |
306 | true, /* partial_inplace */ | |
307 | 0, /* src_mask */ | |
308 | 0, /* dst_mask */ | |
309 | true), /* pcrel_offset */ | |
310 | ||
311 | /* Mark beginning of Gcc relaxation group instruction. */ | |
312 | HOWTO (R_M68HC11_RL_GROUP, /* type */ | |
313 | 0, /* rightshift */ | |
314 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
315 | 0, /* bitsize */ | |
316 | false, /* pc_relative */ | |
317 | 0, /* bitpos */ | |
318 | complain_overflow_dont, /* complain_on_overflow */ | |
319 | m68hc11_elf_ignore_reloc, /* special_function */ | |
320 | "R_M68HC11_RL_GROUP", /* name */ | |
321 | true, /* partial_inplace */ | |
322 | 0, /* src_mask */ | |
323 | 0, /* dst_mask */ | |
324 | true), /* pcrel_offset */ | |
60bcf0fa NC |
325 | }; |
326 | ||
327 | /* Map BFD reloc types to M68HC11 ELF reloc types. */ | |
328 | ||
329 | struct m68hc11_reloc_map | |
330 | { | |
331 | bfd_reloc_code_real_type bfd_reloc_val; | |
332 | unsigned char elf_reloc_val; | |
333 | }; | |
334 | ||
335 | static const struct m68hc11_reloc_map m68hc11_reloc_map[] = { | |
336 | {BFD_RELOC_NONE, R_M68HC11_NONE,}, | |
337 | {BFD_RELOC_8, R_M68HC11_8}, | |
338 | {BFD_RELOC_M68HC11_HI8, R_M68HC11_HI8}, | |
339 | {BFD_RELOC_M68HC11_LO8, R_M68HC11_LO8}, | |
340 | {BFD_RELOC_8_PCREL, R_M68HC11_PCREL_8}, | |
341 | {BFD_RELOC_16_PCREL, R_M68HC11_PCREL_16}, | |
342 | {BFD_RELOC_16, R_M68HC11_16}, | |
343 | {BFD_RELOC_32, R_M68HC11_32}, | |
344 | {BFD_RELOC_M68HC11_3B, R_M68HC11_3B}, | |
345 | ||
60bcf0fa NC |
346 | {BFD_RELOC_VTABLE_INHERIT, R_M68HC11_GNU_VTINHERIT}, |
347 | {BFD_RELOC_VTABLE_ENTRY, R_M68HC11_GNU_VTENTRY}, | |
dae78fb0 | 348 | |
7a897be4 SC |
349 | {BFD_RELOC_M68HC11_LO16, R_M68HC11_LO16}, |
350 | {BFD_RELOC_M68HC11_PAGE, R_M68HC11_PAGE}, | |
351 | {BFD_RELOC_M68HC11_24, R_M68HC11_24}, | |
352 | ||
dae78fb0 SC |
353 | {BFD_RELOC_M68HC11_RL_JUMP, R_M68HC11_RL_JUMP}, |
354 | {BFD_RELOC_M68HC11_RL_GROUP, R_M68HC11_RL_GROUP}, | |
60bcf0fa NC |
355 | }; |
356 | ||
357 | static reloc_howto_type * | |
358 | bfd_elf32_bfd_reloc_type_lookup (abfd, code) | |
359 | bfd *abfd ATTRIBUTE_UNUSED; | |
360 | bfd_reloc_code_real_type code; | |
361 | { | |
362 | unsigned int i; | |
363 | ||
364 | for (i = 0; | |
365 | i < sizeof (m68hc11_reloc_map) / sizeof (struct m68hc11_reloc_map); | |
366 | i++) | |
367 | { | |
368 | if (m68hc11_reloc_map[i].bfd_reloc_val == code) | |
369 | return &elf_m68hc11_howto_table[m68hc11_reloc_map[i].elf_reloc_val]; | |
370 | } | |
371 | ||
372 | return NULL; | |
373 | } | |
374 | ||
dae78fb0 SC |
375 | /* This function is used for relocs which are only used for relaxing, |
376 | which the linker should otherwise ignore. */ | |
377 | ||
378 | static bfd_reloc_status_type | |
379 | m68hc11_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section, | |
380 | output_bfd, error_message) | |
381 | bfd *abfd ATTRIBUTE_UNUSED; | |
382 | arelent *reloc_entry; | |
383 | asymbol *symbol ATTRIBUTE_UNUSED; | |
384 | PTR data ATTRIBUTE_UNUSED; | |
385 | asection *input_section; | |
386 | bfd *output_bfd; | |
387 | char **error_message ATTRIBUTE_UNUSED; | |
388 | { | |
389 | if (output_bfd != NULL) | |
390 | reloc_entry->address += input_section->output_offset; | |
391 | return bfd_reloc_ok; | |
392 | } | |
393 | ||
60bcf0fa NC |
394 | /* Set the howto pointer for an M68HC11 ELF reloc. */ |
395 | ||
396 | static void | |
397 | m68hc11_info_to_howto_rel (abfd, cache_ptr, dst) | |
398 | bfd *abfd ATTRIBUTE_UNUSED; | |
399 | arelent *cache_ptr; | |
400 | Elf32_Internal_Rel *dst; | |
401 | { | |
402 | unsigned int r_type; | |
403 | ||
404 | r_type = ELF32_R_TYPE (dst->r_info); | |
405 | BFD_ASSERT (r_type < (unsigned int) R_M68HC11_max); | |
406 | cache_ptr->howto = &elf_m68hc11_howto_table[r_type]; | |
407 | } | |
408 | ||
9b701e44 SC |
409 | static asection * |
410 | elf32_m68hc11_gc_mark_hook (abfd, info, rel, h, sym) | |
411 | bfd *abfd; | |
412 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
413 | Elf_Internal_Rela *rel; | |
414 | struct elf_link_hash_entry *h; | |
415 | Elf_Internal_Sym *sym; | |
416 | { | |
417 | if (h != NULL) | |
418 | { | |
419 | switch (ELF32_R_TYPE (rel->r_info)) | |
420 | { | |
421 | default: | |
422 | switch (h->root.type) | |
423 | { | |
424 | case bfd_link_hash_defined: | |
425 | case bfd_link_hash_defweak: | |
426 | return h->root.u.def.section; | |
427 | ||
428 | case bfd_link_hash_common: | |
429 | return h->root.u.c.p->section; | |
430 | ||
431 | default: | |
432 | break; | |
433 | } | |
434 | } | |
435 | } | |
436 | else | |
437 | { | |
438 | if (!(elf_bad_symtab (abfd) | |
439 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
440 | && !((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
441 | && sym->st_shndx != SHN_COMMON)) | |
442 | { | |
443 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
444 | } | |
445 | } | |
446 | return NULL; | |
447 | } | |
448 | ||
449 | static boolean | |
450 | elf32_m68hc11_gc_sweep_hook (abfd, info, sec, relocs) | |
451 | bfd *abfd ATTRIBUTE_UNUSED; | |
452 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
453 | asection *sec ATTRIBUTE_UNUSED; | |
454 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; | |
455 | { | |
456 | /* We don't use got and plt entries for 68hc11/68hc12. */ | |
457 | return true; | |
458 | } | |
459 | ||
1fd03b5a SC |
460 | struct m68hc11_direct_relax |
461 | { | |
462 | const char *name; | |
463 | unsigned char code; | |
464 | unsigned char direct_code; | |
465 | } m68hc11_direct_relax_table[] = { | |
466 | { "adca", 0xB9, 0x99 }, | |
467 | { "adcb", 0xF9, 0xD9 }, | |
468 | { "adda", 0xBB, 0x9B }, | |
469 | { "addb", 0xFB, 0xDB }, | |
470 | { "addd", 0xF3, 0xD3 }, | |
471 | { "anda", 0xB4, 0x94 }, | |
472 | { "andb", 0xF4, 0xD4 }, | |
473 | { "cmpa", 0xB1, 0x91 }, | |
474 | { "cmpb", 0xF1, 0xD1 }, | |
475 | { "cpd", 0xB3, 0x93 }, | |
476 | { "cpxy", 0xBC, 0x9C }, | |
477 | /* { "cpy", 0xBC, 0x9C }, */ | |
478 | { "eora", 0xB8, 0x98 }, | |
479 | { "eorb", 0xF8, 0xD8 }, | |
480 | { "jsr", 0xBD, 0x9D }, | |
481 | { "ldaa", 0xB6, 0x96 }, | |
482 | { "ldab", 0xF6, 0xD6 }, | |
483 | { "ldd", 0xFC, 0xDC }, | |
484 | { "lds", 0xBE, 0x9E }, | |
485 | { "ldxy", 0xFE, 0xDE }, | |
486 | /* { "ldy", 0xFE, 0xDE },*/ | |
487 | { "oraa", 0xBA, 0x9A }, | |
488 | { "orab", 0xFA, 0xDA }, | |
489 | { "sbca", 0xB2, 0x92 }, | |
490 | { "sbcb", 0xF2, 0xD2 }, | |
491 | { "staa", 0xB7, 0x97 }, | |
492 | { "stab", 0xF7, 0xD7 }, | |
493 | { "std", 0xFD, 0xDD }, | |
494 | { "sts", 0xBF, 0x9F }, | |
495 | { "stxy", 0xFF, 0xDF }, | |
496 | /* { "sty", 0xFF, 0xDF },*/ | |
497 | { "suba", 0xB0, 0x90 }, | |
498 | { "subb", 0xF0, 0xD0 }, | |
499 | { "subd", 0xB3, 0x93 }, | |
500 | { 0, 0, 0 } | |
501 | }; | |
502 | ||
503 | static struct m68hc11_direct_relax * | |
504 | find_relaxable_insn (unsigned char code) | |
505 | { | |
506 | int i; | |
507 | ||
508 | for (i = 0; m68hc11_direct_relax_table[i].name; i++) | |
509 | if (m68hc11_direct_relax_table[i].code == code) | |
510 | return &m68hc11_direct_relax_table[i]; | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
515 | static int | |
516 | compare_reloc (e1, e2) | |
517 | const void *e1; | |
518 | const void *e2; | |
519 | { | |
520 | const Elf_Internal_Rela *i1 = (const Elf_Internal_Rela *) e1; | |
521 | const Elf_Internal_Rela *i2 = (const Elf_Internal_Rela *) e2; | |
522 | ||
523 | if (i1->r_offset == i2->r_offset) | |
524 | return 0; | |
525 | else | |
526 | return i1->r_offset < i2->r_offset ? -1 : 1; | |
527 | } | |
528 | ||
529 | #define M6811_OP_LDX_IMMEDIATE (0xCE) | |
530 | ||
531 | static void | |
532 | m68hc11_relax_group (abfd, sec, contents, value, offset, end_group) | |
533 | bfd *abfd; | |
534 | asection *sec; | |
535 | bfd_byte *contents; | |
536 | unsigned value; | |
537 | unsigned long offset; | |
538 | unsigned long end_group; | |
539 | { | |
540 | unsigned char code; | |
541 | unsigned long start_offset; | |
542 | unsigned long ldx_offset = offset; | |
543 | unsigned long ldx_size; | |
544 | int can_delete_ldx; | |
545 | int relax_ldy = 0; | |
546 | ||
547 | /* First instruction of the relax group must be a | |
548 | LDX #value or LDY #value. If this is not the case, | |
549 | ignore the relax group. */ | |
550 | code = bfd_get_8 (abfd, contents + offset); | |
551 | if (code == 0x18) | |
552 | { | |
553 | relax_ldy++; | |
554 | offset++; | |
555 | code = bfd_get_8 (abfd, contents + offset); | |
556 | } | |
557 | ldx_size = offset - ldx_offset + 3; | |
558 | offset += 3; | |
559 | if (code != M6811_OP_LDX_IMMEDIATE || offset >= end_group) | |
560 | return; | |
561 | ||
562 | ||
563 | /* We can remove the LDX/LDY only when all bset/brclr instructions | |
564 | of the relax group have been converted to use direct addressing | |
565 | mode. */ | |
566 | can_delete_ldx = 1; | |
567 | while (offset < end_group) | |
568 | { | |
569 | unsigned isize; | |
570 | unsigned new_value; | |
571 | int bset_use_y; | |
572 | ||
573 | bset_use_y = 0; | |
574 | start_offset = offset; | |
575 | code = bfd_get_8 (abfd, contents + offset); | |
576 | if (code == 0x18) | |
577 | { | |
578 | bset_use_y++; | |
579 | offset++; | |
580 | code = bfd_get_8 (abfd, contents + offset); | |
581 | } | |
582 | ||
583 | /* Check the instruction and translate to use direct addressing mode. */ | |
584 | switch (code) | |
585 | { | |
586 | /* bset */ | |
587 | case 0x1C: | |
588 | code = 0x14; | |
589 | isize = 3; | |
590 | break; | |
591 | ||
592 | /* brclr */ | |
593 | case 0x1F: | |
594 | code = 0x13; | |
595 | isize = 4; | |
596 | break; | |
597 | ||
598 | /* brset */ | |
599 | case 0x1E: | |
600 | code = 0x12; | |
601 | isize = 4; | |
602 | break; | |
603 | ||
604 | /* bclr */ | |
605 | case 0x1D: | |
606 | code = 0x15; | |
607 | isize = 3; | |
608 | break; | |
609 | ||
610 | /* This instruction is not recognized and we are not | |
611 | at end of the relax group. Ignore and don't remove | |
612 | the first LDX (we don't know what it is used for...). */ | |
613 | default: | |
614 | return; | |
615 | } | |
616 | new_value = (unsigned) bfd_get_8 (abfd, contents + offset + 1); | |
617 | new_value += value; | |
618 | if ((new_value & 0xff00) == 0 && bset_use_y == relax_ldy) | |
619 | { | |
620 | bfd_put_8 (abfd, code, contents + offset); | |
621 | bfd_put_8 (abfd, new_value, contents + offset + 1); | |
622 | if (start_offset != offset) | |
623 | { | |
624 | m68hc11_elf_relax_delete_bytes (abfd, sec, start_offset, | |
625 | offset - start_offset); | |
626 | end_group--; | |
627 | } | |
628 | } | |
629 | else | |
630 | { | |
631 | can_delete_ldx = 0; | |
632 | } | |
633 | offset = start_offset + isize; | |
634 | } | |
635 | if (can_delete_ldx) | |
636 | { | |
637 | /* Remove the move instruction (3 or 4 bytes win). */ | |
638 | m68hc11_elf_relax_delete_bytes (abfd, sec, ldx_offset, ldx_size); | |
639 | } | |
640 | } | |
641 | ||
642 | /* This function handles relaxing for the 68HC11. | |
643 | ||
644 | ||
645 | and somewhat more difficult to support. */ | |
646 | ||
647 | static boolean | |
648 | m68hc11_elf_relax_section (abfd, sec, link_info, again) | |
649 | bfd *abfd; | |
650 | asection *sec; | |
651 | struct bfd_link_info *link_info; | |
652 | boolean *again; | |
653 | { | |
654 | Elf_Internal_Shdr *symtab_hdr; | |
655 | Elf_Internal_Shdr *shndx_hdr; | |
656 | Elf_Internal_Rela *internal_relocs; | |
657 | Elf_Internal_Rela *free_relocs = NULL; | |
658 | Elf_Internal_Rela *irel, *irelend; | |
659 | bfd_byte *contents = NULL; | |
660 | bfd_byte *free_contents = NULL; | |
661 | Elf32_External_Sym *extsyms = NULL; | |
662 | Elf32_External_Sym *free_extsyms = NULL; | |
663 | Elf_Internal_Rela *prev_insn_branch = NULL; | |
664 | Elf_Internal_Rela *prev_insn_group = NULL; | |
665 | unsigned insn_group_value = 0; | |
666 | Elf_External_Sym_Shndx *shndx_buf = NULL; | |
667 | ||
668 | /* Assume nothing changes. */ | |
669 | *again = false; | |
670 | ||
671 | /* We don't have to do anything for a relocateable link, if | |
672 | this section does not have relocs, or if this is not a | |
673 | code section. */ | |
674 | if (link_info->relocateable | |
675 | || (sec->flags & SEC_RELOC) == 0 | |
676 | || sec->reloc_count == 0 | |
677 | || (sec->flags & SEC_CODE) == 0) | |
678 | return true; | |
679 | ||
680 | /* If this is the first time we have been called for this section, | |
681 | initialize the cooked size. */ | |
682 | if (sec->_cooked_size == 0) | |
683 | sec->_cooked_size = sec->_raw_size; | |
684 | ||
685 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
686 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
687 | ||
688 | /* Get a copy of the native relocations. */ | |
689 | internal_relocs = (_bfd_elf32_link_read_relocs | |
690 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, | |
691 | link_info->keep_memory)); | |
692 | if (internal_relocs == NULL) | |
693 | goto error_return; | |
694 | if (! link_info->keep_memory) | |
695 | free_relocs = internal_relocs; | |
696 | ||
697 | /* Checking for branch relaxation relies on the relocations to | |
698 | be sorted on 'r_offset'. This is not guaranteed so we must sort. */ | |
699 | qsort (internal_relocs, sec->reloc_count, sizeof (Elf_Internal_Rela), | |
700 | compare_reloc); | |
701 | ||
702 | /* Walk through them looking for relaxing opportunities. */ | |
703 | irelend = internal_relocs + sec->reloc_count; | |
704 | for (irel = internal_relocs; irel < irelend; irel++) | |
705 | { | |
706 | bfd_vma symval; | |
707 | bfd_vma value; | |
708 | Elf_Internal_Sym isym; | |
709 | ||
710 | /* If this isn't something that can be relaxed, then ignore | |
711 | this reloc. */ | |
712 | if (ELF32_R_TYPE (irel->r_info) != (int) R_M68HC11_16 | |
713 | && ELF32_R_TYPE (irel->r_info) != (int) R_M68HC11_RL_JUMP | |
714 | && ELF32_R_TYPE (irel->r_info) != (int) R_M68HC11_RL_GROUP) | |
715 | { | |
716 | prev_insn_branch = 0; | |
717 | prev_insn_group = 0; | |
718 | continue; | |
719 | } | |
720 | ||
721 | /* Get the section contents if we haven't done so already. */ | |
722 | if (contents == NULL) | |
723 | { | |
724 | /* Get cached copy if it exists. */ | |
725 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
726 | contents = elf_section_data (sec)->this_hdr.contents; | |
727 | else | |
728 | { | |
729 | /* Go get them off disk. */ | |
730 | contents = (bfd_byte *) bfd_malloc (sec->_raw_size); | |
731 | if (contents == NULL) | |
732 | goto error_return; | |
733 | free_contents = contents; | |
734 | ||
735 | if (! bfd_get_section_contents (abfd, sec, contents, | |
736 | (file_ptr) 0, sec->_raw_size)) | |
737 | goto error_return; | |
738 | } | |
739 | } | |
740 | ||
741 | /* Try to eliminate an unconditional 8 bit pc-relative branch | |
742 | which immediately follows a conditional 8 bit pc-relative | |
743 | branch around the unconditional branch. | |
744 | ||
745 | original: new: | |
746 | bCC lab1 bCC' lab2 | |
747 | bra lab2 | |
748 | lab1: lab1: | |
749 | ||
750 | This happens when the bCC can't reach lab2 at assembly time, | |
751 | but due to other relaxations it can reach at link time. */ | |
752 | if (ELF32_R_TYPE (irel->r_info) == (int) R_M68HC11_RL_JUMP) | |
753 | { | |
754 | Elf_Internal_Rela *nrel; | |
755 | unsigned char code; | |
756 | unsigned char roffset; | |
757 | ||
758 | prev_insn_branch = 0; | |
759 | prev_insn_group = 0; | |
760 | ||
761 | /* Do nothing if this reloc is the last byte in the section. */ | |
762 | if (irel->r_offset == sec->_cooked_size) | |
763 | continue; | |
764 | ||
765 | /* See if the next instruction is an unconditional pc-relative | |
766 | branch, more often than not this test will fail, so we | |
767 | test it first to speed things up. */ | |
768 | code = bfd_get_8 (abfd, contents + irel->r_offset + 2); | |
769 | if (code != 0x7e) | |
770 | continue; | |
771 | ||
772 | /* Also make sure the next relocation applies to the next | |
773 | instruction and that it's a pc-relative 8 bit branch. */ | |
774 | nrel = irel + 1; | |
775 | if (nrel == irelend | |
776 | || irel->r_offset + 3 != nrel->r_offset | |
777 | || ELF32_R_TYPE (nrel->r_info) != (int) R_M68HC11_16) | |
778 | continue; | |
779 | ||
780 | /* Make sure our destination immediately follows the | |
781 | unconditional branch. */ | |
782 | roffset = bfd_get_8 (abfd, contents + irel->r_offset + 1); | |
783 | if (roffset != 3) | |
784 | continue; | |
785 | ||
786 | prev_insn_branch = irel; | |
787 | prev_insn_group = 0; | |
788 | continue; | |
789 | } | |
790 | ||
791 | /* Read this BFD's symbols if we haven't done so already. */ | |
792 | if (extsyms == NULL) | |
793 | { | |
794 | /* Get cached copy if it exists. */ | |
795 | if (symtab_hdr->contents != NULL) | |
796 | extsyms = (Elf32_External_Sym *) symtab_hdr->contents; | |
797 | else | |
798 | { | |
799 | /* Go get them off disk. */ | |
800 | bfd_size_type amt = symtab_hdr->sh_size; | |
801 | extsyms = (Elf32_External_Sym *) bfd_malloc (amt); | |
802 | if (extsyms == NULL) | |
803 | goto error_return; | |
804 | free_extsyms = extsyms; | |
805 | if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
806 | || bfd_bread ((PTR) extsyms, amt, abfd) != amt) | |
807 | goto error_return; | |
808 | } | |
809 | ||
810 | if (shndx_hdr->sh_size != 0) | |
811 | { | |
812 | bfd_size_type amt; | |
813 | ||
814 | amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx); | |
815 | shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); | |
816 | if (shndx_buf == NULL) | |
817 | goto error_return; | |
818 | if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0 | |
819 | || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt) | |
820 | goto error_return; | |
821 | shndx_hdr->contents = (PTR) shndx_buf; | |
822 | } | |
823 | } | |
824 | ||
825 | /* Get the value of the symbol referred to by the reloc. */ | |
826 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
827 | { | |
828 | Elf32_External_Sym *esym; | |
829 | Elf_External_Sym_Shndx *shndx; | |
830 | asection *sym_sec; | |
831 | ||
832 | /* A local symbol. */ | |
833 | esym = extsyms + ELF32_R_SYM (irel->r_info); | |
834 | shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0); | |
835 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); | |
836 | ||
837 | sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx); | |
838 | symval = (isym.st_value | |
839 | + sym_sec->output_section->vma | |
840 | + sym_sec->output_offset); | |
841 | } | |
842 | else | |
843 | { | |
844 | unsigned long indx; | |
845 | struct elf_link_hash_entry *h; | |
846 | ||
847 | /* An external symbol. */ | |
848 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
849 | h = elf_sym_hashes (abfd)[indx]; | |
850 | BFD_ASSERT (h != NULL); | |
851 | if (h->root.type != bfd_link_hash_defined | |
852 | && h->root.type != bfd_link_hash_defweak) | |
853 | { | |
854 | /* This appears to be a reference to an undefined | |
855 | symbol. Just ignore it--it will be caught by the | |
856 | regular reloc processing. */ | |
857 | prev_insn_branch = 0; | |
858 | prev_insn_group = 0; | |
859 | continue; | |
860 | } | |
861 | ||
862 | symval = (h->root.u.def.value | |
863 | + h->root.u.def.section->output_section->vma | |
864 | + h->root.u.def.section->output_offset); | |
865 | } | |
866 | ||
867 | if (ELF32_R_TYPE (irel->r_info) == (int) R_M68HC11_RL_GROUP) | |
868 | { | |
869 | prev_insn_branch = 0; | |
870 | prev_insn_group = 0; | |
871 | ||
872 | /* Do nothing if this reloc is the last byte in the section. */ | |
873 | if (irel->r_offset == sec->_cooked_size) | |
874 | continue; | |
875 | ||
876 | prev_insn_group = irel; | |
877 | insn_group_value = isym.st_value; | |
878 | continue; | |
879 | } | |
880 | ||
881 | value = symval; | |
882 | /* Try to turn a far branch to a near branch. */ | |
883 | if (ELF32_R_TYPE (irel->r_info) == (int) R_M68HC11_16 | |
884 | && prev_insn_branch) | |
885 | { | |
886 | bfd_vma offset; | |
887 | unsigned char code; | |
888 | ||
889 | offset = value - (prev_insn_branch->r_offset | |
890 | + sec->output_section->vma | |
891 | + sec->output_offset + 2); | |
892 | ||
893 | /* If the offset is still out of -128..+127 range, | |
894 | leave that far branch unchanged. */ | |
895 | if ((offset & 0xff80) != 0 && (offset & 0xff80) != 0xff80) | |
896 | { | |
897 | prev_insn_branch = 0; | |
898 | continue; | |
899 | } | |
900 | ||
901 | /* Shrink the branch. */ | |
902 | code = bfd_get_8 (abfd, contents + prev_insn_branch->r_offset); | |
903 | if (code == 0x7e) | |
904 | { | |
905 | code = 0x20; | |
906 | bfd_put_8 (abfd, code, contents + prev_insn_branch->r_offset); | |
907 | bfd_put_8 (abfd, offset, | |
908 | contents + prev_insn_branch->r_offset + 1); | |
909 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
910 | R_M68HC11_NONE); | |
911 | m68hc11_elf_relax_delete_bytes (abfd, sec, | |
912 | irel->r_offset, 1); | |
913 | } | |
914 | else | |
915 | { | |
916 | code ^= 0x1; | |
917 | bfd_put_8 (abfd, code, contents + prev_insn_branch->r_offset); | |
918 | bfd_put_8 (abfd, offset, | |
919 | contents + prev_insn_branch->r_offset + 1); | |
920 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
921 | R_M68HC11_NONE); | |
922 | m68hc11_elf_relax_delete_bytes (abfd, sec, | |
923 | irel->r_offset - 1, 3); | |
924 | } | |
925 | prev_insn_branch = 0; | |
926 | } | |
927 | ||
928 | /* Try to turn a 16 bit address into a 8 bit page0 address. */ | |
929 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_M68HC11_16 | |
930 | && (value & 0xff00) == 0) | |
931 | { | |
932 | unsigned char code; | |
933 | unsigned short offset; | |
934 | struct m68hc11_direct_relax *rinfo; | |
935 | ||
936 | prev_insn_branch = 0; | |
937 | offset = bfd_get_16 (abfd, contents + irel->r_offset); | |
938 | offset += value; | |
939 | if ((offset & 0xff00) != 0) | |
940 | { | |
941 | prev_insn_group = 0; | |
942 | continue; | |
943 | } | |
944 | ||
945 | if (prev_insn_group) | |
946 | { | |
947 | /* Note that we've changed the reldection contents, etc. */ | |
948 | elf_section_data (sec)->relocs = internal_relocs; | |
949 | free_relocs = NULL; | |
950 | ||
951 | elf_section_data (sec)->this_hdr.contents = contents; | |
952 | free_contents = NULL; | |
953 | ||
954 | symtab_hdr->contents = (bfd_byte *) extsyms; | |
955 | free_extsyms = NULL; | |
956 | ||
957 | m68hc11_relax_group (abfd, sec, contents, offset, | |
958 | prev_insn_group->r_offset, | |
959 | insn_group_value); | |
960 | irel = prev_insn_group; | |
961 | prev_insn_group = 0; | |
962 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
963 | R_M68HC11_NONE); | |
964 | continue; | |
965 | } | |
966 | ||
967 | /* Get the opcode. */ | |
968 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
969 | rinfo = find_relaxable_insn (code); | |
970 | if (rinfo == 0) | |
971 | { | |
972 | prev_insn_group = 0; | |
973 | continue; | |
974 | } | |
975 | ||
976 | /* Note that we've changed the reldection contents, etc. */ | |
977 | elf_section_data (sec)->relocs = internal_relocs; | |
978 | free_relocs = NULL; | |
979 | ||
980 | elf_section_data (sec)->this_hdr.contents = contents; | |
981 | free_contents = NULL; | |
982 | ||
983 | symtab_hdr->contents = (bfd_byte *) extsyms; | |
984 | free_extsyms = NULL; | |
985 | ||
986 | /* Fix the opcode. */ | |
987 | /* printf ("A relaxable case : 0x%02x (%s)\n", | |
988 | code, rinfo->name); */ | |
989 | bfd_put_8 (abfd, rinfo->direct_code, | |
990 | contents + irel->r_offset - 1); | |
991 | ||
992 | /* Delete one byte of data (upper byte of address). */ | |
993 | m68hc11_elf_relax_delete_bytes (abfd, sec, irel->r_offset, 1); | |
994 | ||
995 | /* Fix the relocation's type. */ | |
996 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
997 | R_M68HC11_8); | |
998 | ||
999 | /* That will change things, so, we should relax again. | |
1000 | Note that this is not required, and it may be slow. */ | |
1001 | *again = true; | |
1002 | } | |
1003 | else if (ELF32_R_TYPE (irel->r_info) == R_M68HC11_16) | |
1004 | { | |
1005 | unsigned char code; | |
1006 | bfd_vma offset; | |
1007 | ||
1008 | prev_insn_branch = 0; | |
1009 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
1010 | if (code == 0x7e) | |
1011 | { | |
1012 | offset = value - (irel->r_offset | |
1013 | + sec->output_section->vma | |
1014 | + sec->output_offset + 1); | |
1015 | offset += bfd_get_16 (abfd, contents + irel->r_offset); | |
1016 | ||
1017 | /* If the offset is still out of -128..+127 range, | |
1018 | leave that far branch unchanged. */ | |
1019 | if ((offset & 0xff80) == 0 || (offset & 0xff80) == 0xff80) | |
1020 | { | |
1021 | ||
1022 | /* Note that we've changed the reldection contents, etc. */ | |
1023 | elf_section_data (sec)->relocs = internal_relocs; | |
1024 | free_relocs = NULL; | |
1025 | ||
1026 | elf_section_data (sec)->this_hdr.contents = contents; | |
1027 | free_contents = NULL; | |
1028 | ||
1029 | symtab_hdr->contents = (bfd_byte *) extsyms; | |
1030 | free_extsyms = NULL; | |
1031 | ||
1032 | /* Shrink the branch. */ | |
1033 | code = 0x20; | |
1034 | bfd_put_8 (abfd, code, | |
1035 | contents + irel->r_offset - 1); | |
1036 | bfd_put_8 (abfd, offset, | |
1037 | contents + irel->r_offset); | |
1038 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1039 | R_M68HC11_NONE); | |
1040 | m68hc11_elf_relax_delete_bytes (abfd, sec, | |
1041 | irel->r_offset + 1, 1); | |
1042 | } | |
1043 | } | |
1044 | } | |
1045 | prev_insn_branch = 0; | |
1046 | } | |
1047 | ||
1048 | if (free_relocs != NULL) | |
1049 | { | |
1050 | free (free_relocs); | |
1051 | free_relocs = NULL; | |
1052 | } | |
1053 | ||
1054 | if (free_contents != NULL) | |
1055 | { | |
1056 | if (! link_info->keep_memory) | |
1057 | free (free_contents); | |
1058 | else | |
1059 | { | |
1060 | /* Cache the section contents for elf_link_input_bfd. */ | |
1061 | elf_section_data (sec)->this_hdr.contents = contents; | |
1062 | } | |
1063 | free_contents = NULL; | |
1064 | } | |
1065 | ||
1066 | if (free_extsyms != NULL) | |
1067 | { | |
1068 | if (! link_info->keep_memory) | |
1069 | free (free_extsyms); | |
1070 | else | |
1071 | { | |
1072 | /* Cache the symbols for elf_link_input_bfd. */ | |
1073 | symtab_hdr->contents = (unsigned char *) extsyms; | |
1074 | } | |
1075 | free_extsyms = NULL; | |
1076 | } | |
1077 | ||
1078 | return true; | |
1079 | ||
1080 | error_return: | |
1081 | if (free_relocs != NULL) | |
1082 | free (free_relocs); | |
1083 | if (free_contents != NULL) | |
1084 | free (free_contents); | |
1085 | if (free_extsyms != NULL) | |
1086 | free (free_extsyms); | |
1087 | return false; | |
1088 | } | |
1089 | ||
1090 | /* Delete some bytes from a section while relaxing. */ | |
1091 | ||
1092 | static void | |
1093 | m68hc11_elf_relax_delete_bytes (abfd, sec, addr, count) | |
1094 | bfd *abfd; | |
1095 | asection *sec; | |
1096 | bfd_vma addr; | |
1097 | int count; | |
1098 | { | |
1099 | Elf_Internal_Shdr *symtab_hdr; | |
1100 | Elf_Internal_Shdr *shndx_hdr; | |
1101 | Elf32_External_Sym *extsyms; | |
1102 | unsigned int sec_shndx; | |
1103 | Elf_External_Sym_Shndx *shndx; | |
1104 | bfd_byte *contents; | |
1105 | Elf_Internal_Rela *irel, *irelend; | |
1106 | bfd_vma toaddr; | |
1107 | Elf32_External_Sym *esym, *esymend; | |
1108 | struct elf_link_hash_entry **sym_hashes; | |
1109 | struct elf_link_hash_entry **end_hashes; | |
1110 | unsigned int symcount; | |
1111 | ||
1112 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1113 | extsyms = (Elf32_External_Sym *) symtab_hdr->contents; | |
1114 | ||
1115 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
1116 | ||
1117 | contents = elf_section_data (sec)->this_hdr.contents; | |
1118 | ||
1119 | toaddr = sec->_cooked_size; | |
1120 | ||
1121 | irel = elf_section_data (sec)->relocs; | |
1122 | irelend = irel + sec->reloc_count; | |
1123 | ||
1124 | /* Actually delete the bytes. */ | |
1125 | memmove (contents + addr, contents + addr + count, | |
1126 | (size_t) (toaddr - addr - count)); | |
1127 | sec->_cooked_size -= count; | |
1128 | ||
1129 | /* Adjust all the relocs. */ | |
1130 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1131 | { | |
1132 | unsigned char code; | |
1133 | unsigned char offset; | |
1134 | unsigned short raddr; | |
1135 | unsigned long old_offset; | |
1136 | int branch_pos; | |
1137 | ||
1138 | old_offset = irel->r_offset; | |
1139 | ||
1140 | /* See if this reloc was for the bytes we have deleted, in which | |
1141 | case we no longer care about it. Don't delete relocs which | |
1142 | represent addresses, though. */ | |
1143 | if (ELF32_R_TYPE (irel->r_info) != R_M68HC11_RL_JUMP | |
1144 | && irel->r_offset >= addr && irel->r_offset < addr + count) | |
1145 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1146 | R_M68HC11_NONE); | |
1147 | ||
1148 | if (ELF32_R_TYPE (irel->r_info) == R_M68HC11_NONE) | |
1149 | continue; | |
1150 | ||
1151 | /* Get the new reloc address. */ | |
1152 | if ((irel->r_offset > addr | |
1153 | && irel->r_offset < toaddr)) | |
1154 | irel->r_offset -= count; | |
1155 | ||
1156 | /* If this is a PC relative reloc, see if the range it covers | |
1157 | includes the bytes we have deleted. */ | |
1158 | switch (ELF32_R_TYPE (irel->r_info)) | |
1159 | { | |
1160 | default: | |
1161 | break; | |
1162 | ||
1163 | case R_M68HC11_RL_JUMP: | |
1164 | code = bfd_get_8 (abfd, contents + irel->r_offset); | |
1165 | switch (code) | |
1166 | { | |
1167 | /* jsr and jmp instruction are also marked with RL_JUMP | |
1168 | relocs but no adjustment must be made. */ | |
1169 | case 0x7e: | |
1170 | case 0x9d: | |
1171 | case 0xbd: | |
1172 | continue; | |
1173 | ||
1174 | case 0x12: | |
1175 | case 0x13: | |
1176 | branch_pos = 3; | |
1177 | raddr = 4; | |
1178 | ||
1179 | /* Special case when we translate a brclr N,y into brclr *<addr> | |
1180 | In this case, the 0x18 page2 prefix is removed. | |
1181 | The reloc offset is not modified but the instruction | |
1182 | size is reduced by 1. */ | |
1183 | if (old_offset == addr) | |
1184 | raddr++; | |
1185 | break; | |
1186 | ||
1187 | case 0x1e: | |
1188 | case 0x1f: | |
1189 | branch_pos = 3; | |
1190 | raddr = 4; | |
1191 | break; | |
1192 | ||
1193 | case 0x18: | |
1194 | branch_pos = 4; | |
1195 | raddr = 5; | |
1196 | break; | |
1197 | ||
1198 | default: | |
1199 | branch_pos = 1; | |
1200 | raddr = 2; | |
1201 | break; | |
1202 | } | |
1203 | offset = bfd_get_8 (abfd, contents + irel->r_offset + branch_pos); | |
1204 | raddr += old_offset; | |
1205 | raddr += ((unsigned short) offset | ((offset & 0x80) ? 0xff00 : 0)); | |
1206 | if (irel->r_offset < addr && raddr >= addr) | |
1207 | { | |
1208 | offset -= count; | |
1209 | bfd_put_8 (abfd, offset, contents + irel->r_offset + branch_pos); | |
1210 | } | |
1211 | else if (irel->r_offset >= addr && raddr <= addr) | |
1212 | { | |
1213 | offset += count; | |
1214 | bfd_put_8 (abfd, offset, contents + irel->r_offset + branch_pos); | |
1215 | } | |
1216 | else | |
1217 | { | |
1218 | /*printf ("Not adjusted 0x%04x [0x%4x 0x%4x]\n", raddr, | |
1219 | irel->r_offset, addr);*/ | |
1220 | } | |
1221 | ||
1222 | break; | |
1223 | } | |
1224 | } | |
1225 | ||
1226 | /* Adjust the local symbols defined in this section. */ | |
1227 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
1228 | shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; | |
1229 | esym = extsyms; | |
1230 | esymend = esym + symtab_hdr->sh_info; | |
1231 | for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) | |
1232 | { | |
1233 | Elf_Internal_Sym isym; | |
1234 | Elf_External_Sym_Shndx dummy; | |
1235 | ||
1236 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); | |
1237 | ||
1238 | if (isym.st_shndx == sec_shndx | |
1239 | && isym.st_value > addr | |
1240 | && isym.st_value < toaddr) | |
1241 | { | |
1242 | isym.st_value -= count; | |
1243 | bfd_elf32_swap_symbol_out (abfd, &isym, esym, &dummy); | |
1244 | } | |
1245 | } | |
1246 | ||
1247 | /* Now adjust the global symbols defined in this section. */ | |
1248 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
1249 | - symtab_hdr->sh_info); | |
1250 | sym_hashes = elf_sym_hashes (abfd); | |
1251 | end_hashes = sym_hashes + symcount; | |
1252 | for (; sym_hashes < end_hashes; sym_hashes++) | |
1253 | { | |
1254 | struct elf_link_hash_entry *sym_hash = *sym_hashes; | |
1255 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1256 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1257 | && sym_hash->root.u.def.section == sec | |
1258 | && sym_hash->root.u.def.value > addr | |
1259 | && sym_hash->root.u.def.value < toaddr) | |
1260 | { | |
1261 | sym_hash->root.u.def.value -= count; | |
1262 | } | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | /* Look through the relocs for a section during the first phase. | |
1267 | Since we don't do .gots or .plts, we just need to consider the | |
1268 | virtual table relocs for gc. */ | |
1269 | ||
1270 | static boolean | |
1271 | elf32_m68hc11_check_relocs (abfd, info, sec, relocs) | |
1272 | bfd * abfd; | |
1273 | struct bfd_link_info * info; | |
1274 | asection * sec; | |
1275 | const Elf_Internal_Rela * relocs; | |
1276 | { | |
1277 | Elf_Internal_Shdr * symtab_hdr; | |
1278 | struct elf_link_hash_entry ** sym_hashes; | |
1279 | struct elf_link_hash_entry ** sym_hashes_end; | |
1280 | const Elf_Internal_Rela * rel; | |
1281 | const Elf_Internal_Rela * rel_end; | |
1282 | ||
1283 | if (info->relocateable) | |
1284 | return true; | |
1285 | ||
1286 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; | |
1287 | sym_hashes = elf_sym_hashes (abfd); | |
1288 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
1289 | if (!elf_bad_symtab (abfd)) | |
1290 | sym_hashes_end -= symtab_hdr->sh_info; | |
1291 | ||
1292 | rel_end = relocs + sec->reloc_count; | |
1293 | ||
1294 | for (rel = relocs; rel < rel_end; rel++) | |
1295 | { | |
1296 | struct elf_link_hash_entry * h; | |
1297 | unsigned long r_symndx; | |
1298 | ||
1299 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1300 | ||
1301 | if (r_symndx < symtab_hdr->sh_info) | |
1302 | h = NULL; | |
1303 | else | |
1304 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
1305 | ||
1306 | switch (ELF32_R_TYPE (rel->r_info)) | |
1307 | { | |
1308 | /* This relocation describes the C++ object vtable hierarchy. | |
1309 | Reconstruct it for later use during GC. */ | |
1310 | case R_M68HC11_GNU_VTINHERIT: | |
1311 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1312 | return false; | |
1313 | break; | |
1314 | ||
1315 | /* This relocation describes which C++ vtable entries are actually | |
1316 | used. Record for later use during GC. */ | |
1317 | case R_M68HC11_GNU_VTENTRY: | |
1318 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
1319 | return false; | |
1320 | break; | |
1321 | } | |
1322 | } | |
1323 | ||
1324 | return true; | |
1325 | } | |
1326 | ||
1327 | /* Relocate a 68hc11/68hc12 ELF section. */ | |
1328 | static boolean | |
1329 | elf32_m68hc11_relocate_section (output_bfd, info, input_bfd, input_section, | |
1330 | contents, relocs, local_syms, local_sections) | |
1331 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
1332 | struct bfd_link_info *info; | |
1333 | bfd *input_bfd; | |
1334 | asection *input_section; | |
1335 | bfd_byte *contents; | |
1336 | Elf_Internal_Rela *relocs; | |
1337 | Elf_Internal_Sym *local_syms; | |
1338 | asection **local_sections; | |
1339 | { | |
1340 | Elf_Internal_Shdr *symtab_hdr; | |
1341 | struct elf_link_hash_entry **sym_hashes; | |
1342 | Elf_Internal_Rela *rel, *relend; | |
1343 | const char *name; | |
1344 | ||
1345 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1346 | sym_hashes = elf_sym_hashes (input_bfd); | |
1347 | ||
1348 | rel = relocs; | |
1349 | relend = relocs + input_section->reloc_count; | |
1350 | for (; rel < relend; rel++) | |
1351 | { | |
1352 | int r_type; | |
1353 | reloc_howto_type *howto; | |
1354 | unsigned long r_symndx; | |
1355 | Elf_Internal_Sym *sym; | |
1356 | asection *sec; | |
1357 | struct elf_link_hash_entry *h; | |
1358 | bfd_vma relocation; | |
1359 | bfd_reloc_status_type r; | |
1360 | ||
1361 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1362 | r_type = ELF32_R_TYPE (rel->r_info); | |
1363 | ||
1364 | if (r_type == R_M68HC11_GNU_VTENTRY | |
1365 | || r_type == R_M68HC11_GNU_VTINHERIT ) | |
1366 | continue; | |
1367 | ||
1368 | howto = elf_m68hc11_howto_table + r_type; | |
1369 | ||
1370 | if (info->relocateable) | |
1371 | { | |
1372 | /* This is a relocateable link. We don't have to change | |
1373 | anything, unless the reloc is against a section symbol, | |
1374 | in which case we have to adjust according to where the | |
1375 | section symbol winds up in the output section. */ | |
1376 | if (r_symndx < symtab_hdr->sh_info) | |
1377 | { | |
1378 | sym = local_syms + r_symndx; | |
1379 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
1380 | { | |
1381 | sec = local_sections[r_symndx]; | |
1382 | rel->r_addend += sec->output_offset + sym->st_value; | |
1383 | } | |
1384 | } | |
1385 | ||
1386 | continue; | |
1387 | } | |
1388 | ||
1389 | /* This is a final link. */ | |
1390 | h = NULL; | |
1391 | sym = NULL; | |
1392 | sec = NULL; | |
1393 | if (r_symndx < symtab_hdr->sh_info) | |
1394 | { | |
1395 | sym = local_syms + r_symndx; | |
1396 | sec = local_sections[r_symndx]; | |
1397 | relocation = (sec->output_section->vma | |
1398 | + sec->output_offset | |
1399 | + sym->st_value); | |
1400 | } | |
1401 | else | |
1402 | { | |
1403 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1404 | while (h->root.type == bfd_link_hash_indirect | |
1405 | || h->root.type == bfd_link_hash_warning) | |
1406 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1407 | if (h->root.type == bfd_link_hash_defined | |
1408 | || h->root.type == bfd_link_hash_defweak) | |
1409 | { | |
1410 | sec = h->root.u.def.section; | |
1411 | relocation = (h->root.u.def.value | |
1412 | + sec->output_section->vma | |
1413 | + sec->output_offset); | |
1414 | } | |
1415 | else if (h->root.type == bfd_link_hash_undefweak) | |
1416 | relocation = 0; | |
1417 | else | |
1418 | { | |
1419 | if (!((*info->callbacks->undefined_symbol) | |
1420 | (info, h->root.root.string, input_bfd, | |
1421 | input_section, rel->r_offset, true))) | |
1422 | return false; | |
1423 | relocation = 0; | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | if (h != NULL) | |
1428 | name = h->root.root.string; | |
1429 | else | |
1430 | { | |
1431 | name = (bfd_elf_string_from_elf_section | |
1432 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1433 | if (name == NULL || *name == '\0') | |
1434 | name = bfd_section_name (input_bfd, sec); | |
1435 | } | |
1436 | ||
1437 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1438 | contents, rel->r_offset, | |
1439 | relocation, rel->r_addend); | |
1440 | ||
1441 | if (r != bfd_reloc_ok) | |
1442 | { | |
1443 | const char * msg = (const char *) 0; | |
1444 | ||
1445 | switch (r) | |
1446 | { | |
1447 | case bfd_reloc_overflow: | |
1448 | if (!((*info->callbacks->reloc_overflow) | |
1449 | (info, name, howto->name, (bfd_vma) 0, | |
1450 | input_bfd, input_section, rel->r_offset))) | |
1451 | return false; | |
1452 | break; | |
1453 | ||
1454 | case bfd_reloc_undefined: | |
1455 | if (!((*info->callbacks->undefined_symbol) | |
1456 | (info, name, input_bfd, input_section, | |
1457 | rel->r_offset, true))) | |
1458 | return false; | |
1459 | break; | |
1460 | ||
1461 | case bfd_reloc_outofrange: | |
1462 | msg = _ ("internal error: out of range error"); | |
1463 | goto common_error; | |
1464 | ||
1465 | case bfd_reloc_notsupported: | |
1466 | msg = _ ("internal error: unsupported relocation error"); | |
1467 | goto common_error; | |
1468 | ||
1469 | case bfd_reloc_dangerous: | |
1470 | msg = _ ("internal error: dangerous error"); | |
1471 | goto common_error; | |
1472 | ||
1473 | default: | |
1474 | msg = _ ("internal error: unknown error"); | |
1475 | /* fall through */ | |
1476 | ||
1477 | common_error: | |
1478 | if (!((*info->callbacks->warning) | |
1479 | (info, msg, name, input_bfd, input_section, | |
1480 | rel->r_offset))) | |
1481 | return false; | |
1482 | break; | |
1483 | } | |
1484 | } | |
1485 | } | |
1486 | ||
1487 | return true; | |
1488 | } | |
1489 | ||
1490 | ||
96405e3c SC |
1491 | \f |
1492 | /* Set and control ELF flags in ELF header. */ | |
1493 | ||
1494 | boolean | |
1495 | _bfd_m68hc11_elf_set_private_flags (abfd, flags) | |
1496 | bfd *abfd; | |
1497 | flagword flags; | |
1498 | { | |
1499 | BFD_ASSERT (!elf_flags_init (abfd) | |
1500 | || elf_elfheader (abfd)->e_flags == flags); | |
1501 | ||
1502 | elf_elfheader (abfd)->e_flags = flags; | |
1503 | elf_flags_init (abfd) = true; | |
1504 | return true; | |
1505 | } | |
1506 | ||
1507 | /* Merge backend specific data from an object file to the output | |
1508 | object file when linking. */ | |
1509 | ||
1510 | boolean | |
1511 | _bfd_m68hc11_elf_merge_private_bfd_data (ibfd, obfd) | |
1512 | bfd *ibfd; | |
1513 | bfd *obfd; | |
1514 | { | |
1515 | flagword old_flags; | |
1516 | flagword new_flags; | |
1517 | boolean ok = true; | |
1518 | ||
1519 | /* Check if we have the same endianess */ | |
1520 | if (_bfd_generic_verify_endian_match (ibfd, obfd) == false) | |
1521 | return false; | |
1522 | ||
1523 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1524 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
1525 | return true; | |
1526 | ||
1527 | new_flags = elf_elfheader (ibfd)->e_flags; | |
1528 | elf_elfheader (obfd)->e_flags |= new_flags & EF_M68HC11_ABI; | |
1529 | old_flags = elf_elfheader (obfd)->e_flags; | |
1530 | ||
1531 | if (! elf_flags_init (obfd)) | |
1532 | { | |
1533 | elf_flags_init (obfd) = true; | |
1534 | elf_elfheader (obfd)->e_flags = new_flags; | |
1535 | elf_elfheader (obfd)->e_ident[EI_CLASS] | |
1536 | = elf_elfheader (ibfd)->e_ident[EI_CLASS]; | |
1537 | ||
1538 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
1539 | && bfd_get_arch_info (obfd)->the_default) | |
1540 | { | |
1541 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
1542 | bfd_get_mach (ibfd))) | |
1543 | return false; | |
1544 | } | |
1545 | ||
1546 | return true; | |
1547 | } | |
1548 | ||
1549 | /* Check ABI compatibility. */ | |
1550 | if ((new_flags & E_M68HC11_I32) != (old_flags & E_M68HC11_I32)) | |
1551 | { | |
1552 | (*_bfd_error_handler) | |
1553 | (_("%s: linking files compiled for 16-bit integers (-mshort) " | |
1554 | "and others for 32-bit integers"), | |
1555 | bfd_archive_filename (ibfd)); | |
1556 | ok = false; | |
1557 | } | |
1558 | if ((new_flags & E_M68HC11_F64) != (old_flags & E_M68HC11_F64)) | |
1559 | { | |
1560 | (*_bfd_error_handler) | |
1561 | (_("%s: linking files compiled for 32-bit double (-fshort-double) " | |
1562 | "and others for 64-bit double"), | |
1563 | bfd_archive_filename (ibfd)); | |
1564 | ok = false; | |
1565 | } | |
1566 | new_flags &= ~EF_M68HC11_ABI; | |
1567 | old_flags &= ~EF_M68HC11_ABI; | |
1568 | ||
1569 | /* Warn about any other mismatches */ | |
1570 | if (new_flags != old_flags) | |
1571 | { | |
1572 | (*_bfd_error_handler) | |
1573 | (_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"), | |
1574 | bfd_archive_filename (ibfd), (unsigned long) new_flags, | |
1575 | (unsigned long) old_flags); | |
1576 | ok = false; | |
1577 | } | |
1578 | ||
1579 | if (! ok) | |
1580 | { | |
1581 | bfd_set_error (bfd_error_bad_value); | |
1582 | return false; | |
1583 | } | |
1584 | ||
1585 | return true; | |
1586 | } | |
1587 | ||
1588 | boolean | |
1589 | _bfd_m68hc11_elf_print_private_bfd_data (abfd, ptr) | |
1590 | bfd *abfd; | |
1591 | PTR ptr; | |
1592 | { | |
1593 | FILE *file = (FILE *) ptr; | |
1594 | ||
1595 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
1596 | ||
1597 | /* Print normal ELF private data. */ | |
1598 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
1599 | ||
1600 | /* xgettext:c-format */ | |
1601 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
1602 | ||
1603 | if (elf_elfheader (abfd)->e_flags & E_M68HC11_I32) | |
1604 | fprintf (file, _("[abi=32-bit int,")); | |
1605 | else | |
1606 | fprintf (file, _("[abi=16-bit int,")); | |
1607 | ||
1608 | if (elf_elfheader (abfd)->e_flags & E_M68HC11_F64) | |
1609 | fprintf (file, _(" 64-bit double]")); | |
1610 | else | |
1611 | fprintf (file, _(" 32-bit double]")); | |
1612 | ||
1613 | if (elf_elfheader (abfd)->e_flags & E_M68HC12_BANKS) | |
1614 | fprintf (file, _(" [memory=bank-model]")); | |
1615 | else | |
1616 | fprintf (file, _(" [memory=flat]")); | |
1617 | ||
1618 | fputc ('\n', file); | |
1619 | ||
1620 | return true; | |
1621 | } | |
1622 | ||
60bcf0fa NC |
1623 | /* Below is the only difference between elf32-m68hc12.c and elf32-m68hc11.c. |
1624 | The Motorola spec says to use a different Elf machine code. */ | |
1625 | #define ELF_ARCH bfd_arch_m68hc11 | |
1626 | #define ELF_MACHINE_CODE EM_68HC11 | |
1627 | #define ELF_MAXPAGESIZE 0x1000 | |
1628 | ||
1629 | #define TARGET_BIG_SYM bfd_elf32_m68hc11_vec | |
1630 | #define TARGET_BIG_NAME "elf32-m68hc11" | |
1631 | ||
1632 | #define elf_info_to_howto 0 | |
1633 | #define elf_info_to_howto_rel m68hc11_info_to_howto_rel | |
1fd03b5a | 1634 | #define bfd_elf32_bfd_relax_section m68hc11_elf_relax_section |
9b701e44 SC |
1635 | #define elf_backend_gc_mark_hook elf32_m68hc11_gc_mark_hook |
1636 | #define elf_backend_gc_sweep_hook elf32_m68hc11_gc_sweep_hook | |
1fd03b5a SC |
1637 | #define elf_backend_check_relocs elf32_m68hc11_check_relocs |
1638 | #define elf_backend_relocate_section elf32_m68hc11_relocate_section | |
60bcf0fa NC |
1639 | #define elf_backend_object_p 0 |
1640 | #define elf_backend_final_write_processing 0 | |
9b701e44 | 1641 | #define elf_backend_can_gc_sections 1 |
96405e3c SC |
1642 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
1643 | _bfd_m68hc11_elf_merge_private_bfd_data | |
1644 | #define bfd_elf32_bfd_set_private_flags _bfd_m68hc11_elf_set_private_flags | |
1645 | #define bfd_elf32_bfd_print_private_bfd_data \ | |
1646 | _bfd_m68hc11_elf_print_private_bfd_data | |
1647 | ||
60bcf0fa | 1648 | #include "elf32-target.h" |