Commit | Line | Data |
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c2dcd04e | 1 | /* BFD back-end for Renesas H8/300 ELF binaries. |
07adf181 | 2 | Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006 |
73ff0d56 | 3 | Free Software Foundation, Inc. |
e01b0e69 | 4 | |
e514ac71 | 5 | This file is part of BFD, the Binary File Descriptor library. |
e01b0e69 | 6 | |
e514ac71 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 | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
e01b0e69 | 11 | |
e514ac71 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. | |
e01b0e69 | 16 | |
e514ac71 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 | |
3e110533 | 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
e01b0e69 JR |
20 | |
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | #include "elf/h8.h" | |
26 | ||
27 | static reloc_howto_type *elf32_h8_reloc_type_lookup | |
c6baf75e | 28 | (bfd *abfd, bfd_reloc_code_real_type code); |
e01b0e69 | 29 | static void elf32_h8_info_to_howto |
c6baf75e | 30 | (bfd *, arelent *, Elf_Internal_Rela *); |
5e47149d | 31 | static void elf32_h8_info_to_howto_rel |
c6baf75e | 32 | (bfd *, arelent *, Elf_Internal_Rela *); |
96ef1419 KH |
33 | static unsigned long elf32_h8_mach (flagword); |
34 | static void elf32_h8_final_write_processing (bfd *, bfd_boolean); | |
35 | static bfd_boolean elf32_h8_object_p (bfd *); | |
36 | static bfd_boolean elf32_h8_merge_private_bfd_data (bfd *, bfd *); | |
b34976b6 | 37 | static bfd_boolean elf32_h8_relax_section |
c6baf75e | 38 | (bfd *, asection *, struct bfd_link_info *, bfd_boolean *); |
b34976b6 | 39 | static bfd_boolean elf32_h8_relax_delete_bytes |
c6baf75e | 40 | (bfd *, asection *, bfd_vma, int); |
96ef1419 | 41 | static bfd_boolean elf32_h8_symbol_address_p (bfd *, asection *, bfd_vma); |
dc810e39 | 42 | static bfd_byte *elf32_h8_get_relocated_section_contents |
c6baf75e RS |
43 | (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
44 | bfd_byte *, bfd_boolean, asymbol **); | |
5e47149d | 45 | static bfd_reloc_status_type elf32_h8_final_link_relocate |
c6baf75e RS |
46 | (unsigned long, bfd *, bfd *, asection *, |
47 | bfd_byte *, bfd_vma, bfd_vma, bfd_vma, | |
48 | struct bfd_link_info *, asection *, int); | |
b34976b6 | 49 | static bfd_boolean elf32_h8_relocate_section |
c6baf75e RS |
50 | (bfd *, struct bfd_link_info *, bfd *, asection *, |
51 | bfd_byte *, Elf_Internal_Rela *, | |
52 | Elf_Internal_Sym *, asection **); | |
dc810e39 | 53 | static bfd_reloc_status_type special |
c6baf75e | 54 | (bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **); |
e01b0e69 JR |
55 | |
56 | /* This does not include any relocation information, but should be | |
57 | good enough for GDB or objdump to read the file. */ | |
58 | ||
bc7eab72 | 59 | static reloc_howto_type h8_elf_howto_table[] = { |
e01b0e69 JR |
60 | #define R_H8_NONE_X 0 |
61 | HOWTO (R_H8_NONE, /* type */ | |
62 | 0, /* rightshift */ | |
63 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
64 | 0, /* bitsize */ | |
b34976b6 | 65 | FALSE, /* pc_relative */ |
e01b0e69 | 66 | 0, /* bitpos */ |
9d29900b NC |
67 | complain_overflow_dont,/* complain_on_overflow */ |
68 | special, /* special_function */ | |
e01b0e69 | 69 | "R_H8_NONE", /* name */ |
b34976b6 | 70 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
71 | 0, /* src_mask */ |
72 | 0, /* dst_mask */ | |
b34976b6 | 73 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
74 | #define R_H8_DIR32_X (R_H8_NONE_X + 1) |
75 | HOWTO (R_H8_DIR32, /* type */ | |
76 | 0, /* rightshift */ | |
77 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
78 | 32, /* bitsize */ | |
b34976b6 | 79 | FALSE, /* pc_relative */ |
e01b0e69 | 80 | 0, /* bitpos */ |
9d29900b NC |
81 | complain_overflow_dont,/* complain_on_overflow */ |
82 | special, /* special_function */ | |
e01b0e69 | 83 | "R_H8_DIR32", /* name */ |
b34976b6 | 84 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
85 | 0, /* src_mask */ |
86 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 87 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
88 | #define R_H8_DIR16_X (R_H8_DIR32_X + 1) |
89 | HOWTO (R_H8_DIR16, /* type */ | |
90 | 0, /* rightshift */ | |
91 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
92 | 16, /* bitsize */ | |
b34976b6 | 93 | FALSE, /* pc_relative */ |
e01b0e69 | 94 | 0, /* bitpos */ |
9d29900b NC |
95 | complain_overflow_dont,/* complain_on_overflow */ |
96 | special, /* special_function */ | |
e01b0e69 | 97 | "R_H8_DIR16", /* name */ |
b34976b6 | 98 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
99 | 0, /* src_mask */ |
100 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 101 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
102 | #define R_H8_DIR8_X (R_H8_DIR16_X + 1) |
103 | HOWTO (R_H8_DIR8, /* type */ | |
104 | 0, /* rightshift */ | |
105 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
106 | 8, /* bitsize */ | |
b34976b6 | 107 | FALSE, /* pc_relative */ |
e01b0e69 | 108 | 0, /* bitpos */ |
9d29900b NC |
109 | complain_overflow_dont,/* complain_on_overflow */ |
110 | special, /* special_function */ | |
111 | "R_H8_DIR8", /* name */ | |
b34976b6 | 112 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
113 | 0, /* src_mask */ |
114 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 115 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
116 | #define R_H8_DIR16A8_X (R_H8_DIR8_X + 1) |
117 | HOWTO (R_H8_DIR16A8, /* type */ | |
118 | 0, /* rightshift */ | |
119 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
120 | 16, /* bitsize */ | |
b34976b6 | 121 | FALSE, /* pc_relative */ |
e01b0e69 JR |
122 | 0, /* bitpos */ |
123 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 124 | special, /* special_function */ |
e01b0e69 | 125 | "R_H8_DIR16A8", /* name */ |
b34976b6 | 126 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
127 | 0, /* src_mask */ |
128 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 129 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
130 | #define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1) |
131 | HOWTO (R_H8_DIR16R8, /* type */ | |
132 | 0, /* rightshift */ | |
133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
134 | 16, /* bitsize */ | |
b34976b6 | 135 | FALSE, /* pc_relative */ |
e01b0e69 JR |
136 | 0, /* bitpos */ |
137 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 138 | special, /* special_function */ |
e01b0e69 | 139 | "R_H8_DIR16R8", /* name */ |
b34976b6 | 140 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
141 | 0, /* src_mask */ |
142 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 143 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
144 | #define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1) |
145 | HOWTO (R_H8_DIR24A8, /* type */ | |
146 | 0, /* rightshift */ | |
147 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
148 | 24, /* bitsize */ | |
b34976b6 | 149 | FALSE, /* pc_relative */ |
e01b0e69 JR |
150 | 0, /* bitpos */ |
151 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 152 | special, /* special_function */ |
e01b0e69 | 153 | "R_H8_DIR24A8", /* name */ |
b34976b6 | 154 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
155 | 0xff000000, /* src_mask */ |
156 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 157 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
158 | #define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1) |
159 | HOWTO (R_H8_DIR24R8, /* type */ | |
160 | 0, /* rightshift */ | |
161 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
162 | 24, /* bitsize */ | |
b34976b6 | 163 | FALSE, /* pc_relative */ |
e01b0e69 JR |
164 | 0, /* bitpos */ |
165 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 166 | special, /* special_function */ |
e01b0e69 | 167 | "R_H8_DIR24R8", /* name */ |
b34976b6 | 168 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
169 | 0xff000000, /* src_mask */ |
170 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 171 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
172 | #define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1) |
173 | HOWTO (R_H8_DIR32A16, /* type */ | |
174 | 0, /* rightshift */ | |
175 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
176 | 32, /* bitsize */ | |
b34976b6 | 177 | FALSE, /* pc_relative */ |
e01b0e69 | 178 | 0, /* bitpos */ |
9d29900b NC |
179 | complain_overflow_dont,/* complain_on_overflow */ |
180 | special, /* special_function */ | |
8c17da6e | 181 | "R_H8_DIR32A16", /* name */ |
b34976b6 | 182 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
183 | 0, /* src_mask */ |
184 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 185 | FALSE), /* pcrel_offset */ |
f2352488 JL |
186 | #define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1) |
187 | HOWTO (R_H8_PCREL16, /* type */ | |
188 | 0, /* rightshift */ | |
189 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
190 | 16, /* bitsize */ | |
b34976b6 | 191 | TRUE, /* pc_relative */ |
f2352488 | 192 | 0, /* bitpos */ |
9d29900b NC |
193 | complain_overflow_signed,/* complain_on_overflow */ |
194 | special, /* special_function */ | |
f2352488 | 195 | "R_H8_PCREL16", /* name */ |
b34976b6 | 196 | FALSE, /* partial_inplace */ |
f2352488 JL |
197 | 0xffff, /* src_mask */ |
198 | 0xffff, /* dst_mask */ | |
b34976b6 | 199 | TRUE), /* pcrel_offset */ |
f2352488 JL |
200 | #define R_H8_PCREL8_X (R_H8_PCREL16_X + 1) |
201 | HOWTO (R_H8_PCREL8, /* type */ | |
202 | 0, /* rightshift */ | |
203 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
204 | 8, /* bitsize */ | |
b34976b6 | 205 | TRUE, /* pc_relative */ |
f2352488 | 206 | 0, /* bitpos */ |
9d29900b NC |
207 | complain_overflow_signed,/* complain_on_overflow */ |
208 | special, /* special_function */ | |
f2352488 | 209 | "R_H8_PCREL8", /* name */ |
b34976b6 | 210 | FALSE, /* partial_inplace */ |
f2352488 JL |
211 | 0xff, /* src_mask */ |
212 | 0xff, /* dst_mask */ | |
b34976b6 | 213 | TRUE), /* pcrel_offset */ |
e01b0e69 JR |
214 | }; |
215 | ||
216 | /* This structure is used to map BFD reloc codes to H8 ELF relocs. */ | |
217 | ||
bc7eab72 | 218 | struct elf_reloc_map { |
e01b0e69 JR |
219 | bfd_reloc_code_real_type bfd_reloc_val; |
220 | unsigned char howto_index; | |
221 | }; | |
222 | ||
6288878d | 223 | /* An array mapping BFD reloc codes to H8 ELF relocs. */ |
e01b0e69 | 224 | |
bc7eab72 | 225 | static const struct elf_reloc_map h8_reloc_map[] = { |
e01b0e69 JR |
226 | { BFD_RELOC_NONE, R_H8_NONE_X }, |
227 | { BFD_RELOC_32, R_H8_DIR32_X }, | |
228 | { BFD_RELOC_16, R_H8_DIR16_X }, | |
229 | { BFD_RELOC_8, R_H8_DIR8_X }, | |
230 | { BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X }, | |
231 | { BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X }, | |
232 | { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, | |
233 | { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, | |
234 | { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, | |
f2352488 JL |
235 | { BFD_RELOC_16_PCREL, R_H8_PCREL16_X }, |
236 | { BFD_RELOC_8_PCREL, R_H8_PCREL8_X }, | |
e01b0e69 JR |
237 | }; |
238 | ||
0a83638b | 239 | |
e01b0e69 | 240 | static reloc_howto_type * |
c6baf75e RS |
241 | elf32_h8_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
242 | bfd_reloc_code_real_type code) | |
e01b0e69 JR |
243 | { |
244 | unsigned int i; | |
245 | ||
246 | for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
247 | { | |
248 | if (h8_reloc_map[i].bfd_reloc_val == code) | |
249 | return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index]; | |
250 | } | |
251 | return NULL; | |
252 | } | |
253 | ||
254 | static void | |
c6baf75e RS |
255 | elf32_h8_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, |
256 | Elf_Internal_Rela *elf_reloc) | |
e01b0e69 JR |
257 | { |
258 | unsigned int r; | |
259 | unsigned int i; | |
260 | ||
261 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
262 | for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++) | |
bc7eab72 | 263 | if (h8_elf_howto_table[i].type == r) |
e01b0e69 JR |
264 | { |
265 | bfd_reloc->howto = &h8_elf_howto_table[i]; | |
266 | return; | |
267 | } | |
268 | abort (); | |
269 | } | |
270 | ||
271 | static void | |
c6baf75e RS |
272 | elf32_h8_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, |
273 | Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED) | |
e01b0e69 JR |
274 | { |
275 | unsigned int r; | |
276 | ||
277 | abort (); | |
278 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
279 | bfd_reloc->howto = &h8_elf_howto_table[r]; | |
280 | } | |
281 | ||
a00c9dbc JL |
282 | /* Special handling for H8/300 relocs. |
283 | We only come here for pcrel stuff and return normally if not an -r link. | |
284 | When doing -r, we can't do any arithmetic for the pcrel stuff, because | |
285 | we support relaxing on the H8/300 series chips. */ | |
286 | static bfd_reloc_status_type | |
c6baf75e RS |
287 | special (bfd *abfd ATTRIBUTE_UNUSED, |
288 | arelent *reloc_entry ATTRIBUTE_UNUSED, | |
289 | asymbol *symbol ATTRIBUTE_UNUSED, | |
290 | PTR data ATTRIBUTE_UNUSED, | |
291 | asection *input_section ATTRIBUTE_UNUSED, | |
292 | bfd *output_bfd, | |
293 | char **error_message ATTRIBUTE_UNUSED) | |
a00c9dbc JL |
294 | { |
295 | if (output_bfd == (bfd *) NULL) | |
296 | return bfd_reloc_continue; | |
297 | ||
298 | /* Adjust the reloc address to that in the output section. */ | |
299 | reloc_entry->address += input_section->output_offset; | |
300 | return bfd_reloc_ok; | |
301 | } | |
5e47149d JL |
302 | |
303 | /* Perform a relocation as part of a final link. */ | |
304 | static bfd_reloc_status_type | |
c6baf75e RS |
305 | elf32_h8_final_link_relocate (unsigned long r_type, bfd *input_bfd, |
306 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
307 | asection *input_section ATTRIBUTE_UNUSED, | |
308 | bfd_byte *contents, bfd_vma offset, | |
309 | bfd_vma value, bfd_vma addend, | |
310 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
311 | asection *sym_sec ATTRIBUTE_UNUSED, | |
312 | int is_local ATTRIBUTE_UNUSED) | |
5e47149d JL |
313 | { |
314 | bfd_byte *hit_data = contents + offset; | |
315 | ||
316 | switch (r_type) | |
317 | { | |
5e47149d JL |
318 | case R_H8_NONE: |
319 | return bfd_reloc_ok; | |
320 | ||
321 | case R_H8_DIR32: | |
322 | case R_H8_DIR32A16: | |
a00c9dbc | 323 | case R_H8_DIR24A8: |
5e47149d JL |
324 | value += addend; |
325 | bfd_put_32 (input_bfd, value, hit_data); | |
326 | return bfd_reloc_ok; | |
327 | ||
328 | case R_H8_DIR16: | |
329 | case R_H8_DIR16A8: | |
330 | case R_H8_DIR16R8: | |
331 | value += addend; | |
332 | bfd_put_16 (input_bfd, value, hit_data); | |
333 | return bfd_reloc_ok; | |
334 | ||
335 | /* AKA R_RELBYTE */ | |
336 | case R_H8_DIR8: | |
337 | value += addend; | |
338 | ||
5e47149d JL |
339 | bfd_put_8 (input_bfd, value, hit_data); |
340 | return bfd_reloc_ok; | |
341 | ||
5e47149d JL |
342 | case R_H8_DIR24R8: |
343 | value += addend; | |
344 | ||
a00c9dbc | 345 | /* HIT_DATA is the address for the first byte for the relocated |
e804e836 | 346 | value. Subtract 1 so that we can manipulate the data in 32-bit |
a00c9dbc JL |
347 | hunks. */ |
348 | hit_data--; | |
349 | ||
350 | /* Clear out the top byte in value. */ | |
5e47149d | 351 | value &= 0xffffff; |
a00c9dbc JL |
352 | |
353 | /* Retrieve the type byte for value from the section contents. */ | |
5e47149d | 354 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000); |
a00c9dbc | 355 | |
e804e836 | 356 | /* Now scribble it out in one 32-bit hunk. */ |
5e47149d JL |
357 | bfd_put_32 (input_bfd, value, hit_data); |
358 | return bfd_reloc_ok; | |
359 | ||
f2352488 JL |
360 | case R_H8_PCREL16: |
361 | value -= (input_section->output_section->vma | |
362 | + input_section->output_offset); | |
363 | value -= offset; | |
364 | value += addend; | |
365 | ||
a00c9dbc JL |
366 | /* The value is relative to the start of the instruction, |
367 | not the relocation offset. Subtract 2 to account for | |
368 | this minor issue. */ | |
369 | value -= 2; | |
370 | ||
f2352488 JL |
371 | bfd_put_16 (input_bfd, value, hit_data); |
372 | return bfd_reloc_ok; | |
373 | ||
374 | case R_H8_PCREL8: | |
375 | value -= (input_section->output_section->vma | |
376 | + input_section->output_offset); | |
377 | value -= offset; | |
378 | value += addend; | |
379 | ||
a00c9dbc JL |
380 | /* The value is relative to the start of the instruction, |
381 | not the relocation offset. Subtract 1 to account for | |
382 | this minor issue. */ | |
383 | value -= 1; | |
384 | ||
f2352488 JL |
385 | bfd_put_8 (input_bfd, value, hit_data); |
386 | return bfd_reloc_ok; | |
387 | ||
5e47149d JL |
388 | default: |
389 | return bfd_reloc_notsupported; | |
390 | } | |
391 | } | |
392 | \f | |
393 | /* Relocate an H8 ELF section. */ | |
b34976b6 | 394 | static bfd_boolean |
c6baf75e RS |
395 | elf32_h8_relocate_section (bfd *output_bfd, struct bfd_link_info *info, |
396 | bfd *input_bfd, asection *input_section, | |
397 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
398 | Elf_Internal_Sym *local_syms, | |
399 | asection **local_sections) | |
5e47149d JL |
400 | { |
401 | Elf_Internal_Shdr *symtab_hdr; | |
402 | struct elf_link_hash_entry **sym_hashes; | |
403 | Elf_Internal_Rela *rel, *relend; | |
404 | ||
1049f94e | 405 | if (info->relocatable) |
b34976b6 | 406 | return TRUE; |
f0fe0e16 | 407 | |
5e47149d JL |
408 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
409 | sym_hashes = elf_sym_hashes (input_bfd); | |
410 | ||
411 | rel = relocs; | |
412 | relend = relocs + input_section->reloc_count; | |
413 | for (; rel < relend; rel++) | |
414 | { | |
dc810e39 | 415 | unsigned int r_type; |
5e47149d JL |
416 | unsigned long r_symndx; |
417 | Elf_Internal_Sym *sym; | |
418 | asection *sec; | |
419 | struct elf_link_hash_entry *h; | |
420 | bfd_vma relocation; | |
421 | bfd_reloc_status_type r; | |
422 | ||
f0fe0e16 | 423 | /* This is a final link. */ |
5e47149d JL |
424 | r_symndx = ELF32_R_SYM (rel->r_info); |
425 | r_type = ELF32_R_TYPE (rel->r_info); | |
5e47149d JL |
426 | h = NULL; |
427 | sym = NULL; | |
428 | sec = NULL; | |
429 | if (r_symndx < symtab_hdr->sh_info) | |
430 | { | |
431 | sym = local_syms + r_symndx; | |
432 | sec = local_sections[r_symndx]; | |
8517fae7 | 433 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
5e47149d JL |
434 | } |
435 | else | |
436 | { | |
59c2e50f L |
437 | bfd_boolean unresolved_reloc, warned; |
438 | ||
b2a8e766 AM |
439 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
440 | r_symndx, symtab_hdr, sym_hashes, | |
441 | h, sec, relocation, | |
442 | unresolved_reloc, warned); | |
5e47149d JL |
443 | } |
444 | ||
445 | r = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
446 | input_section, | |
447 | contents, rel->r_offset, | |
448 | relocation, rel->r_addend, | |
449 | info, sec, h == NULL); | |
450 | ||
451 | if (r != bfd_reloc_ok) | |
452 | { | |
453 | const char *name; | |
454 | const char *msg = (const char *) 0; | |
455 | arelent bfd_reloc; | |
456 | reloc_howto_type *howto; | |
457 | ||
458 | elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel); | |
459 | howto = bfd_reloc.howto; | |
dc810e39 | 460 | |
5e47149d JL |
461 | if (h != NULL) |
462 | name = h->root.root.string; | |
463 | else | |
464 | { | |
465 | name = (bfd_elf_string_from_elf_section | |
466 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
467 | if (name == NULL || *name == '\0') | |
468 | name = bfd_section_name (input_bfd, sec); | |
469 | } | |
470 | ||
471 | switch (r) | |
472 | { | |
473 | case bfd_reloc_overflow: | |
474 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
475 | (info, (h ? &h->root : NULL), name, howto->name, |
476 | (bfd_vma) 0, input_bfd, input_section, | |
477 | rel->r_offset))) | |
b34976b6 | 478 | return FALSE; |
5e47149d JL |
479 | break; |
480 | ||
481 | case bfd_reloc_undefined: | |
482 | if (! ((*info->callbacks->undefined_symbol) | |
483 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
484 | rel->r_offset, TRUE))) |
485 | return FALSE; | |
5e47149d JL |
486 | break; |
487 | ||
488 | case bfd_reloc_outofrange: | |
489 | msg = _("internal error: out of range error"); | |
490 | goto common_error; | |
491 | ||
492 | case bfd_reloc_notsupported: | |
493 | msg = _("internal error: unsupported relocation error"); | |
494 | goto common_error; | |
495 | ||
496 | case bfd_reloc_dangerous: | |
497 | msg = _("internal error: dangerous error"); | |
498 | goto common_error; | |
499 | ||
500 | default: | |
501 | msg = _("internal error: unknown error"); | |
502 | /* fall through */ | |
503 | ||
504 | common_error: | |
505 | if (!((*info->callbacks->warning) | |
506 | (info, msg, name, input_bfd, input_section, | |
507 | rel->r_offset))) | |
b34976b6 | 508 | return FALSE; |
5e47149d JL |
509 | break; |
510 | } | |
511 | } | |
512 | } | |
513 | ||
b34976b6 | 514 | return TRUE; |
5e47149d JL |
515 | } |
516 | ||
0a83638b JL |
517 | /* Object files encode the specific H8 model they were compiled |
518 | for in the ELF flags field. | |
519 | ||
520 | Examine that field and return the proper BFD machine type for | |
521 | the object file. */ | |
dc810e39 | 522 | static unsigned long |
c6baf75e | 523 | elf32_h8_mach (flagword flags) |
0a83638b JL |
524 | { |
525 | switch (flags & EF_H8_MACH) | |
526 | { | |
527 | case E_H8_MACH_H8300: | |
528 | default: | |
529 | return bfd_mach_h8300; | |
530 | ||
531 | case E_H8_MACH_H8300H: | |
532 | return bfd_mach_h8300h; | |
533 | ||
534 | case E_H8_MACH_H8300S: | |
535 | return bfd_mach_h8300s; | |
8d9cd6b1 NC |
536 | |
537 | case E_H8_MACH_H8300HN: | |
538 | return bfd_mach_h8300hn; | |
539 | ||
540 | case E_H8_MACH_H8300SN: | |
541 | return bfd_mach_h8300sn; | |
5d1db417 MS |
542 | |
543 | case E_H8_MACH_H8300SX: | |
544 | return bfd_mach_h8300sx; | |
f4984206 RS |
545 | |
546 | case E_H8_MACH_H8300SXN: | |
547 | return bfd_mach_h8300sxn; | |
0a83638b JL |
548 | } |
549 | } | |
550 | ||
551 | /* The final processing done just before writing out a H8 ELF object | |
552 | file. We use this opportunity to encode the BFD machine type | |
553 | into the flags field in the object file. */ | |
554 | ||
dc810e39 | 555 | static void |
c6baf75e RS |
556 | elf32_h8_final_write_processing (bfd *abfd, |
557 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
0a83638b JL |
558 | { |
559 | unsigned long val; | |
560 | ||
561 | switch (bfd_get_mach (abfd)) | |
562 | { | |
563 | default: | |
564 | case bfd_mach_h8300: | |
565 | val = E_H8_MACH_H8300; | |
566 | break; | |
567 | ||
568 | case bfd_mach_h8300h: | |
569 | val = E_H8_MACH_H8300H; | |
570 | break; | |
571 | ||
572 | case bfd_mach_h8300s: | |
573 | val = E_H8_MACH_H8300S; | |
574 | break; | |
8d9cd6b1 NC |
575 | |
576 | case bfd_mach_h8300hn: | |
577 | val = E_H8_MACH_H8300HN; | |
578 | break; | |
579 | ||
580 | case bfd_mach_h8300sn: | |
581 | val = E_H8_MACH_H8300SN; | |
582 | break; | |
5d1db417 MS |
583 | |
584 | case bfd_mach_h8300sx: | |
585 | val = E_H8_MACH_H8300SX; | |
586 | break; | |
f4984206 RS |
587 | |
588 | case bfd_mach_h8300sxn: | |
589 | val = E_H8_MACH_H8300SXN; | |
590 | break; | |
0a83638b JL |
591 | } |
592 | ||
593 | elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH); | |
594 | elf_elfheader (abfd)->e_flags |= val; | |
595 | } | |
596 | ||
597 | /* Return nonzero if ABFD represents a valid H8 ELF object file; also | |
598 | record the encoded machine type found in the ELF flags. */ | |
599 | ||
b34976b6 | 600 | static bfd_boolean |
c6baf75e | 601 | elf32_h8_object_p (bfd *abfd) |
0a83638b JL |
602 | { |
603 | bfd_default_set_arch_mach (abfd, bfd_arch_h8300, | |
604 | elf32_h8_mach (elf_elfheader (abfd)->e_flags)); | |
b34976b6 | 605 | return TRUE; |
0a83638b JL |
606 | } |
607 | ||
608 | /* Merge backend specific data from an object file to the output | |
609 | object file when linking. The only data we need to copy at this | |
610 | time is the architecture/machine information. */ | |
611 | ||
b34976b6 | 612 | static bfd_boolean |
c6baf75e | 613 | elf32_h8_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
0a83638b JL |
614 | { |
615 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
616 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 617 | return TRUE; |
0a83638b JL |
618 | |
619 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
620 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
621 | { | |
622 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
96ef1419 KH |
623 | bfd_get_mach (ibfd))) |
624 | return FALSE; | |
0a83638b JL |
625 | } |
626 | ||
b34976b6 | 627 | return TRUE; |
0a83638b JL |
628 | } |
629 | ||
5907e628 JL |
630 | /* This function handles relaxing for the H8.. |
631 | ||
4cc11e76 | 632 | There are a few relaxing opportunities available on the H8: |
5907e628 JL |
633 | |
634 | jmp/jsr:24 -> bra/bsr:8 2 bytes | |
635 | The jmp may be completely eliminated if the previous insn is a | |
636 | conditional branch to the insn after the jump. In that case | |
637 | we invert the branch and delete the jump and save 4 bytes. | |
638 | ||
639 | bCC:16 -> bCC:8 2 bytes | |
640 | bsr:16 -> bsr:8 2 bytes | |
641 | ||
630a7b0a KH |
642 | bset:16 -> bset:8 2 bytes |
643 | bset:24/32 -> bset:8 4 bytes | |
644 | (also applicable to other bit manipulation instructions) | |
645 | ||
5907e628 JL |
646 | mov.b:16 -> mov.b:8 2 bytes |
647 | mov.b:24/32 -> mov.b:8 4 bytes | |
648 | ||
7e89635a KH |
649 | bset:24/32 -> bset:16 2 bytes |
650 | (also applicable to other bit manipulation instructions) | |
651 | ||
76f99c63 | 652 | mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes */ |
5907e628 | 653 | |
b34976b6 | 654 | static bfd_boolean |
c6baf75e RS |
655 | elf32_h8_relax_section (bfd *abfd, asection *sec, |
656 | struct bfd_link_info *link_info, bfd_boolean *again) | |
5907e628 JL |
657 | { |
658 | Elf_Internal_Shdr *symtab_hdr; | |
659 | Elf_Internal_Rela *internal_relocs; | |
5907e628 JL |
660 | Elf_Internal_Rela *irel, *irelend; |
661 | bfd_byte *contents = NULL; | |
6cdc0ccc | 662 | Elf_Internal_Sym *isymbuf = NULL; |
5907e628 JL |
663 | static asection *last_input_section = NULL; |
664 | static Elf_Internal_Rela *last_reloc = NULL; | |
665 | ||
666 | /* Assume nothing changes. */ | |
b34976b6 | 667 | *again = FALSE; |
5907e628 | 668 | |
1049f94e | 669 | /* We don't have to do anything for a relocatable link, if |
5907e628 JL |
670 | this section does not have relocs, or if this is not a |
671 | code section. */ | |
1049f94e | 672 | if (link_info->relocatable |
5907e628 JL |
673 | || (sec->flags & SEC_RELOC) == 0 |
674 | || sec->reloc_count == 0 | |
675 | || (sec->flags & SEC_CODE) == 0) | |
b34976b6 | 676 | return TRUE; |
5907e628 | 677 | |
5907e628 JL |
678 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
679 | ||
680 | /* Get a copy of the native relocations. */ | |
45d6a902 | 681 | internal_relocs = (_bfd_elf_link_read_relocs |
5907e628 JL |
682 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
683 | link_info->keep_memory)); | |
684 | if (internal_relocs == NULL) | |
685 | goto error_return; | |
5907e628 JL |
686 | |
687 | if (sec != last_input_section) | |
688 | last_reloc = NULL; | |
689 | ||
690 | last_input_section = sec; | |
691 | ||
692 | /* Walk through the relocs looking for relaxing opportunities. */ | |
693 | irelend = internal_relocs + sec->reloc_count; | |
694 | for (irel = internal_relocs; irel < irelend; irel++) | |
695 | { | |
696 | bfd_vma symval; | |
697 | ||
698 | /* Keep track of the previous reloc so that we can delete | |
699 | some long jumps created by the compiler. */ | |
700 | if (irel != internal_relocs) | |
701 | last_reloc = irel - 1; | |
702 | ||
76f99c63 JL |
703 | if (ELF32_R_TYPE (irel->r_info) != R_H8_DIR24R8 |
704 | && ELF32_R_TYPE (irel->r_info) != R_H8_PCREL16 | |
705 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR16A8 | |
706 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR24A8 | |
707 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR32A16) | |
708 | continue; | |
709 | ||
5907e628 JL |
710 | /* Get the section contents if we haven't done so already. */ |
711 | if (contents == NULL) | |
712 | { | |
713 | /* Get cached copy if it exists. */ | |
714 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
715 | contents = elf_section_data (sec)->this_hdr.contents; | |
716 | else | |
717 | { | |
718 | /* Go get them off disk. */ | |
eea6121a | 719 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
5907e628 JL |
720 | goto error_return; |
721 | } | |
722 | } | |
723 | ||
9ad5cbcf | 724 | /* Read this BFD's local symbols if we haven't done so already. */ |
6cdc0ccc | 725 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
5907e628 | 726 | { |
6cdc0ccc AM |
727 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
728 | if (isymbuf == NULL) | |
729 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
730 | symtab_hdr->sh_info, 0, | |
731 | NULL, NULL, NULL); | |
732 | if (isymbuf == NULL) | |
733 | goto error_return; | |
5907e628 JL |
734 | } |
735 | ||
736 | /* Get the value of the symbol referred to by the reloc. */ | |
737 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
738 | { | |
5907e628 | 739 | /* A local symbol. */ |
6cdc0ccc AM |
740 | Elf_Internal_Sym *isym; |
741 | asection *sym_sec; | |
5907e628 | 742 | |
32ac2c9a | 743 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
6cdc0ccc | 744 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
03d14457 NC |
745 | symval = isym->st_value; |
746 | /* If the reloc is absolute, it will not have | |
747 | a symbol or section associated with it. */ | |
748 | if (sym_sec) | |
749 | symval += sym_sec->output_section->vma | |
750 | + sym_sec->output_offset; | |
5907e628 JL |
751 | } |
752 | else | |
753 | { | |
754 | unsigned long indx; | |
755 | struct elf_link_hash_entry *h; | |
756 | ||
757 | /* An external symbol. */ | |
758 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
759 | h = elf_sym_hashes (abfd)[indx]; | |
760 | BFD_ASSERT (h != NULL); | |
761 | if (h->root.type != bfd_link_hash_defined | |
762 | && h->root.type != bfd_link_hash_defweak) | |
763 | { | |
764 | /* This appears to be a reference to an undefined | |
765 | symbol. Just ignore it--it will be caught by the | |
766 | regular reloc processing. */ | |
767 | continue; | |
768 | } | |
769 | ||
770 | symval = (h->root.u.def.value | |
771 | + h->root.u.def.section->output_section->vma | |
772 | + h->root.u.def.section->output_offset); | |
773 | } | |
774 | ||
775 | /* For simplicity of coding, we are going to modify the section | |
776 | contents, the section relocs, and the BFD symbol table. We | |
777 | must tell the rest of the code not to free up this | |
778 | information. It would be possible to instead create a table | |
779 | of changes which have to be made, as is done in coff-mips.c; | |
780 | that would be more work, but would require less memory when | |
781 | the linker is run. */ | |
782 | switch (ELF32_R_TYPE (irel->r_info)) | |
783 | { | |
e804e836 | 784 | /* Try to turn a 24-bit absolute branch/call into an 8-bit |
5907e628 JL |
785 | pc-relative branch/call. */ |
786 | case R_H8_DIR24R8: | |
787 | { | |
788 | bfd_vma value = symval + irel->r_addend; | |
789 | bfd_vma dot, gap; | |
790 | ||
791 | /* Get the address of this instruction. */ | |
792 | dot = (sec->output_section->vma | |
793 | + sec->output_offset + irel->r_offset - 1); | |
794 | ||
795 | /* Compute the distance from this insn to the branch target. */ | |
796 | gap = value - dot; | |
797 | ||
798 | /* If the distance is within -126..+130 inclusive, then we can | |
799 | relax this jump. +130 is valid since the target will move | |
800 | two bytes closer if we do relax this branch. */ | |
dc810e39 | 801 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 JL |
802 | { |
803 | unsigned char code; | |
804 | ||
805 | /* Note that we've changed the relocs, section contents, | |
806 | etc. */ | |
807 | elf_section_data (sec)->relocs = internal_relocs; | |
5907e628 | 808 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 809 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 810 | |
e514ac71 NC |
811 | /* Get the instruction code being relaxed. */ |
812 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
813 | ||
5907e628 JL |
814 | /* If the previous instruction conditionally jumped around |
815 | this instruction, we may be able to reverse the condition | |
816 | and redirect the previous instruction to the target of | |
817 | this instruction. | |
818 | ||
819 | Such sequences are used by the compiler to deal with | |
e514ac71 NC |
820 | long conditional branches. |
821 | ||
822 | Only perform this optimisation for jumps (code 0x5a) not | |
823 | subroutine calls, as otherwise it could transform: | |
b34976b6 | 824 | |
e514ac71 NC |
825 | mov.w r0,r0 |
826 | beq .L1 | |
827 | jsr @_bar | |
828 | .L1: rts | |
829 | _bar: rts | |
830 | into: | |
831 | mov.w r0,r0 | |
832 | bne _bar | |
833 | rts | |
834 | _bar: rts | |
835 | ||
836 | which changes the call (jsr) into a branch (bne). */ | |
837 | if (code == 0x5a | |
838 | && (int) gap <= 130 | |
dc810e39 | 839 | && (int) gap >= -128 |
5907e628 JL |
840 | && last_reloc |
841 | && ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8 | |
842 | && ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info) | |
843 | { | |
844 | bfd_vma last_value; | |
845 | asection *last_sym_sec; | |
6cdc0ccc | 846 | Elf_Internal_Sym *last_sym; |
5907e628 JL |
847 | |
848 | /* We will need to examine the symbol used by the | |
849 | previous relocation. */ | |
dc810e39 | 850 | |
6cdc0ccc | 851 | last_sym = isymbuf + ELF32_R_SYM (last_reloc->r_info); |
5907e628 | 852 | last_sym_sec |
6cdc0ccc AM |
853 | = bfd_section_from_elf_index (abfd, last_sym->st_shndx); |
854 | last_value = (last_sym->st_value | |
5907e628 JL |
855 | + last_sym_sec->output_section->vma |
856 | + last_sym_sec->output_offset); | |
857 | ||
858 | /* Verify that the previous relocation was for a | |
859 | branch around this instruction and that no symbol | |
860 | exists at the current location. */ | |
861 | if (last_value == dot + 4 | |
862 | && last_reloc->r_offset + 2 == irel->r_offset | |
9ad5cbcf | 863 | && ! elf32_h8_symbol_address_p (abfd, sec, dot)) |
5907e628 JL |
864 | { |
865 | /* We can eliminate this jump. Twiddle the | |
866 | previous relocation as necessary. */ | |
867 | irel->r_info | |
868 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
869 | ELF32_R_TYPE (R_H8_NONE)); | |
870 | ||
bc7eab72 | 871 | last_reloc->r_info |
5907e628 | 872 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
bc7eab72 KH |
873 | ELF32_R_TYPE (R_H8_PCREL8)); |
874 | last_reloc->r_addend = irel->r_addend; | |
5907e628 JL |
875 | |
876 | code = bfd_get_8 (abfd, | |
877 | contents + last_reloc->r_offset - 1); | |
878 | code ^= 1; | |
879 | bfd_put_8 (abfd, | |
880 | code, | |
881 | contents + last_reloc->r_offset - 1); | |
882 | ||
883 | /* Delete four bytes of data. */ | |
884 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
885 | irel->r_offset - 1, | |
886 | 4)) | |
887 | goto error_return; | |
888 | ||
b34976b6 | 889 | *again = TRUE; |
5907e628 JL |
890 | break; |
891 | } | |
892 | } | |
893 | ||
5907e628 | 894 | if (code == 0x5e) |
7e89635a | 895 | /* This is jsr. */ |
5907e628 JL |
896 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 1); |
897 | else if (code == 0x5a) | |
7e89635a | 898 | /* This is jmp. */ |
5907e628 JL |
899 | bfd_put_8 (abfd, 0x40, contents + irel->r_offset - 1); |
900 | else | |
901 | abort (); | |
902 | ||
903 | /* Fix the relocation's type. */ | |
904 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
905 | R_H8_PCREL8); | |
906 | ||
907 | /* Delete two bytes of data. */ | |
908 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
909 | irel->r_offset + 1, 2)) | |
910 | goto error_return; | |
911 | ||
912 | /* That will change things, so, we should relax again. | |
913 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 914 | *again = TRUE; |
5907e628 JL |
915 | } |
916 | break; | |
917 | } | |
918 | ||
e804e836 | 919 | /* Try to turn a 16-bit pc-relative branch into a 8-bit pc-relative |
5907e628 JL |
920 | branch. */ |
921 | case R_H8_PCREL16: | |
922 | { | |
923 | bfd_vma value = symval + irel->r_addend; | |
924 | bfd_vma dot; | |
925 | bfd_vma gap; | |
926 | ||
927 | /* Get the address of this instruction. */ | |
928 | dot = (sec->output_section->vma | |
929 | + sec->output_offset | |
930 | + irel->r_offset - 2); | |
dc810e39 | 931 | |
5907e628 JL |
932 | gap = value - dot; |
933 | ||
934 | /* If the distance is within -126..+130 inclusive, then we can | |
935 | relax this jump. +130 is valid since the target will move | |
936 | two bytes closer if we do relax this branch. */ | |
bc7eab72 | 937 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 | 938 | { |
bc7eab72 | 939 | unsigned char code; |
5907e628 | 940 | |
bc7eab72 | 941 | /* Note that we've changed the relocs, section contents, |
5907e628 | 942 | etc. */ |
bc7eab72 KH |
943 | elf_section_data (sec)->relocs = internal_relocs; |
944 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 945 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 946 | |
bc7eab72 KH |
947 | /* Get the opcode. */ |
948 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 JL |
949 | |
950 | if (code == 0x58) | |
951 | { | |
952 | /* bCC:16 -> bCC:8 */ | |
7e89635a KH |
953 | /* Get the second byte of the original insn, which |
954 | contains the condition code. */ | |
5907e628 | 955 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
7e89635a KH |
956 | |
957 | /* Compute the fisrt byte of the relaxed | |
958 | instruction. The original sequence 0x58 0xX0 | |
959 | is relaxed to 0x4X, where X represents the | |
960 | condition code. */ | |
5907e628 JL |
961 | code &= 0xf0; |
962 | code >>= 4; | |
963 | code |= 0x40; | |
964 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
965 | } | |
966 | else if (code == 0x5c) | |
7e89635a | 967 | /* This is bsr. */ |
5907e628 JL |
968 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 2); |
969 | else | |
970 | abort (); | |
971 | ||
972 | /* Fix the relocation's type. */ | |
bc7eab72 | 973 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
5907e628 | 974 | R_H8_PCREL8); |
bc7eab72 | 975 | irel->r_offset--; |
5907e628 | 976 | |
bc7eab72 KH |
977 | /* Delete two bytes of data. */ |
978 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
979 | irel->r_offset + 1, 2)) |
980 | goto error_return; | |
981 | ||
bc7eab72 | 982 | /* That will change things, so, we should relax again. |
5907e628 | 983 | Note that this is not required, and it may be slow. */ |
b34976b6 | 984 | *again = TRUE; |
5907e628 JL |
985 | } |
986 | break; | |
987 | } | |
988 | ||
630a7b0a KH |
989 | /* This is a 16-bit absolute address in one of the following |
990 | instructions: | |
991 | ||
992 | "band", "bclr", "biand", "bild", "bior", "bist", "bixor", | |
993 | "bld", "bnot", "bor", "bset", "bst", "btst", "bxor", and | |
994 | "mov.b" | |
995 | ||
996 | We may relax this into an 8-bit absolute address if it's in | |
997 | the right range. */ | |
5907e628 JL |
998 | case R_H8_DIR16A8: |
999 | { | |
7a9823f1 | 1000 | bfd_vma value; |
5907e628 | 1001 | |
7a9823f1 RS |
1002 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1003 | if (value >= 0xffffff00u) | |
5907e628 | 1004 | { |
bc7eab72 | 1005 | unsigned char code; |
ca9a79a1 | 1006 | unsigned char temp_code; |
5907e628 | 1007 | |
bc7eab72 | 1008 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1009 | etc. */ |
bc7eab72 KH |
1010 | elf_section_data (sec)->relocs = internal_relocs; |
1011 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1012 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1013 | |
bc7eab72 KH |
1014 | /* Get the opcode. */ |
1015 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1016 | |
630a7b0a KH |
1017 | /* All instructions with R_H8_DIR16A8 start with |
1018 | 0x6a. */ | |
bc7eab72 | 1019 | if (code != 0x6a) |
5907e628 JL |
1020 | abort (); |
1021 | ||
ca9a79a1 | 1022 | temp_code = code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
630a7b0a KH |
1023 | /* If this is a mov.b instruction, clear the lower |
1024 | nibble, which contains the source/destination | |
1025 | register number. */ | |
ca9a79a1 NC |
1026 | if ((temp_code & 0x10) != 0x10) |
1027 | temp_code &= 0xf0; | |
5907e628 | 1028 | |
ca9a79a1 NC |
1029 | switch (temp_code) |
1030 | { | |
1031 | case 0x00: | |
630a7b0a | 1032 | /* This is mov.b @aa:16,Rd. */ |
ca9a79a1 NC |
1033 | bfd_put_8 (abfd, (code & 0xf) | 0x20, |
1034 | contents + irel->r_offset - 2); | |
1035 | break; | |
1036 | case 0x80: | |
630a7b0a | 1037 | /* This is mov.b Rs,@aa:16. */ |
ca9a79a1 NC |
1038 | bfd_put_8 (abfd, (code & 0xf) | 0x30, |
1039 | contents + irel->r_offset - 2); | |
1040 | break; | |
1041 | case 0x18: | |
630a7b0a KH |
1042 | /* This is a bit-maniputation instruction that |
1043 | stores one bit into memory, one of "bclr", | |
1044 | "bist", "bnot", "bset", and "bst". */ | |
ca9a79a1 NC |
1045 | bfd_put_8 (abfd, 0x7f, contents + irel->r_offset - 2); |
1046 | break; | |
1047 | case 0x10: | |
630a7b0a KH |
1048 | /* This is a bit-maniputation instruction that |
1049 | loads one bit from memory, one of "band", | |
1050 | "biand", "bild", "bior", "bixor", "bld", "bor", | |
1051 | "btst", and "bxor". */ | |
ca9a79a1 NC |
1052 | bfd_put_8 (abfd, 0x7e, contents + irel->r_offset - 2); |
1053 | break; | |
1054 | default: | |
1055 | abort (); | |
1056 | } | |
5907e628 | 1057 | |
bc7eab72 KH |
1058 | /* Fix the relocation's type. */ |
1059 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 JL |
1060 | R_H8_DIR8); |
1061 | ||
8c17da6e NC |
1062 | /* Move the relocation. */ |
1063 | irel->r_offset--; | |
1064 | ||
bc7eab72 KH |
1065 | /* Delete two bytes of data. */ |
1066 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1067 | irel->r_offset + 1, 2)) |
1068 | goto error_return; | |
1069 | ||
bc7eab72 | 1070 | /* That will change things, so, we should relax again. |
5907e628 | 1071 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1072 | *again = TRUE; |
5907e628 JL |
1073 | } |
1074 | break; | |
1075 | } | |
1076 | ||
630a7b0a KH |
1077 | /* This is a 24-bit absolute address in one of the following |
1078 | instructions: | |
1079 | ||
1080 | "band", "bclr", "biand", "bild", "bior", "bist", "bixor", | |
1081 | "bld", "bnot", "bor", "bset", "bst", "btst", "bxor", and | |
1082 | "mov.b" | |
1083 | ||
1084 | We may relax this into an 8-bit absolute address if it's in | |
1085 | the right range. */ | |
5907e628 JL |
1086 | case R_H8_DIR24A8: |
1087 | { | |
7a9823f1 | 1088 | bfd_vma value; |
5907e628 | 1089 | |
7a9823f1 RS |
1090 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1091 | if (value >= 0xffffff00u) | |
5907e628 | 1092 | { |
bc7eab72 | 1093 | unsigned char code; |
ca9a79a1 | 1094 | unsigned char temp_code; |
5907e628 | 1095 | |
bc7eab72 | 1096 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1097 | etc. */ |
bc7eab72 KH |
1098 | elf_section_data (sec)->relocs = internal_relocs; |
1099 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1100 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1101 | |
bc7eab72 KH |
1102 | /* Get the opcode. */ |
1103 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1104 | |
630a7b0a KH |
1105 | /* All instructions with R_H8_DIR24A8 start with |
1106 | 0x6a. */ | |
bc7eab72 | 1107 | if (code != 0x6a) |
5907e628 JL |
1108 | abort (); |
1109 | ||
ca9a79a1 NC |
1110 | temp_code = code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
1111 | ||
630a7b0a KH |
1112 | /* If this is a mov.b instruction, clear the lower |
1113 | nibble, which contains the source/destination | |
1114 | register number. */ | |
ca9a79a1 NC |
1115 | if ((temp_code & 0x30) != 0x30) |
1116 | temp_code &= 0xf0; | |
5907e628 | 1117 | |
ca9a79a1 | 1118 | switch (temp_code) |
03d14457 | 1119 | { |
7a9823f1 | 1120 | case 0x20: |
630a7b0a | 1121 | /* This is mov.b @aa:24/32,Rd. */ |
03d14457 NC |
1122 | bfd_put_8 (abfd, (code & 0xf) | 0x20, |
1123 | contents + irel->r_offset - 2); | |
1124 | break; | |
7a9823f1 | 1125 | case 0xa0: |
630a7b0a | 1126 | /* This is mov.b Rs,@aa:24/32. */ |
03d14457 NC |
1127 | bfd_put_8 (abfd, (code & 0xf) | 0x30, |
1128 | contents + irel->r_offset - 2); | |
1129 | break; | |
ca9a79a1 | 1130 | case 0x38: |
630a7b0a KH |
1131 | /* This is a bit-maniputation instruction that |
1132 | stores one bit into memory, one of "bclr", | |
1133 | "bist", "bnot", "bset", and "bst". */ | |
ca9a79a1 NC |
1134 | bfd_put_8 (abfd, 0x7f, contents + irel->r_offset - 2); |
1135 | break; | |
1136 | case 0x30: | |
630a7b0a KH |
1137 | /* This is a bit-maniputation instruction that |
1138 | loads one bit from memory, one of "band", | |
1139 | "biand", "bild", "bior", "bixor", "bld", "bor", | |
1140 | "btst", and "bxor". */ | |
ca9a79a1 NC |
1141 | bfd_put_8 (abfd, 0x7e, contents + irel->r_offset - 2); |
1142 | break; | |
03d14457 | 1143 | default: |
ca9a79a1 | 1144 | abort(); |
03d14457 NC |
1145 | } |
1146 | ||
bc7eab72 KH |
1147 | /* Fix the relocation's type. */ |
1148 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 | 1149 | R_H8_DIR8); |
7a9823f1 | 1150 | irel->r_offset--; |
5907e628 | 1151 | |
bc7eab72 | 1152 | /* Delete two bytes of data. */ |
7a9823f1 RS |
1153 | if (!elf32_h8_relax_delete_bytes (abfd, sec, |
1154 | irel->r_offset + 1, 4)) | |
5907e628 JL |
1155 | goto error_return; |
1156 | ||
bc7eab72 | 1157 | /* That will change things, so, we should relax again. |
5907e628 | 1158 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1159 | *again = TRUE; |
7a9823f1 | 1160 | break; |
5907e628 JL |
1161 | } |
1162 | } | |
1163 | ||
7e89635a KH |
1164 | /* Fall through. */ |
1165 | ||
1166 | /* This is a 24-/32-bit absolute address in one of the | |
1167 | following instructions: | |
1168 | ||
1169 | "band", "bclr", "biand", "bild", "bior", "bist", | |
1170 | "bixor", "bld", "bnot", "bor", "bset", "bst", "btst", | |
3255318a | 1171 | "bxor", "ldc.w", "stc.w" and "mov.[bwl]" |
5907e628 | 1172 | |
7e89635a KH |
1173 | We may relax this into an 16-bit absolute address if it's |
1174 | in the right range. */ | |
5907e628 JL |
1175 | case R_H8_DIR32A16: |
1176 | { | |
7a9823f1 | 1177 | bfd_vma value; |
5907e628 | 1178 | |
7a9823f1 RS |
1179 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1180 | if (value <= 0x7fff || value >= 0xffff8000u) | |
5907e628 | 1181 | { |
bc7eab72 | 1182 | unsigned char code; |
5907e628 | 1183 | |
bc7eab72 | 1184 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1185 | etc. */ |
bc7eab72 KH |
1186 | elf_section_data (sec)->relocs = internal_relocs; |
1187 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1188 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1189 | |
bc7eab72 KH |
1190 | /* Get the opcode. */ |
1191 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
5907e628 | 1192 | |
7e89635a KH |
1193 | /* Fix the opcode. For all the instructions that |
1194 | belong to this relaxation, we simply need to turn | |
1195 | off bit 0x20 in the previous byte. */ | |
bc7eab72 | 1196 | code &= ~0x20; |
5907e628 | 1197 | |
bc7eab72 | 1198 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); |
5907e628 | 1199 | |
bc7eab72 KH |
1200 | /* Fix the relocation's type. */ |
1201 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
8c17da6e | 1202 | R_H8_DIR16); |
5907e628 | 1203 | |
bc7eab72 KH |
1204 | /* Delete two bytes of data. */ |
1205 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1206 | irel->r_offset + 1, 2)) |
1207 | goto error_return; | |
1208 | ||
bc7eab72 | 1209 | /* That will change things, so, we should relax again. |
5907e628 | 1210 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1211 | *again = TRUE; |
5907e628 JL |
1212 | } |
1213 | break; | |
1214 | } | |
1215 | ||
1216 | default: | |
1217 | break; | |
1218 | } | |
1219 | } | |
1220 | ||
6cdc0ccc AM |
1221 | if (isymbuf != NULL |
1222 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5907e628 | 1223 | { |
6cdc0ccc AM |
1224 | if (! link_info->keep_memory) |
1225 | free (isymbuf); | |
1226 | else | |
1227 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
5907e628 JL |
1228 | } |
1229 | ||
6cdc0ccc AM |
1230 | if (contents != NULL |
1231 | && elf_section_data (sec)->this_hdr.contents != contents) | |
5907e628 JL |
1232 | { |
1233 | if (! link_info->keep_memory) | |
6cdc0ccc | 1234 | free (contents); |
5907e628 JL |
1235 | else |
1236 | { | |
1237 | /* Cache the section contents for elf_link_input_bfd. */ | |
1238 | elf_section_data (sec)->this_hdr.contents = contents; | |
1239 | } | |
9ad5cbcf AM |
1240 | } |
1241 | ||
6cdc0ccc AM |
1242 | if (internal_relocs != NULL |
1243 | && elf_section_data (sec)->relocs != internal_relocs) | |
1244 | free (internal_relocs); | |
5907e628 | 1245 | |
b34976b6 | 1246 | return TRUE; |
5907e628 JL |
1247 | |
1248 | error_return: | |
6cdc0ccc AM |
1249 | if (isymbuf != NULL |
1250 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1251 | free (isymbuf); | |
1252 | if (contents != NULL | |
1253 | && elf_section_data (sec)->this_hdr.contents != contents) | |
1254 | free (contents); | |
1255 | if (internal_relocs != NULL | |
1256 | && elf_section_data (sec)->relocs != internal_relocs) | |
1257 | free (internal_relocs); | |
b34976b6 | 1258 | return FALSE; |
5907e628 JL |
1259 | } |
1260 | ||
1261 | /* Delete some bytes from a section while relaxing. */ | |
1262 | ||
b34976b6 | 1263 | static bfd_boolean |
c6baf75e | 1264 | elf32_h8_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count) |
5907e628 JL |
1265 | { |
1266 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1267 | unsigned int sec_shndx; |
5907e628 JL |
1268 | bfd_byte *contents; |
1269 | Elf_Internal_Rela *irel, *irelend; | |
1270 | Elf_Internal_Rela *irelalign; | |
6cdc0ccc AM |
1271 | Elf_Internal_Sym *isym; |
1272 | Elf_Internal_Sym *isymend; | |
5907e628 | 1273 | bfd_vma toaddr; |
9ad5cbcf AM |
1274 | struct elf_link_hash_entry **sym_hashes; |
1275 | struct elf_link_hash_entry **end_hashes; | |
1276 | unsigned int symcount; | |
5907e628 | 1277 | |
9ad5cbcf | 1278 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1279 | |
1280 | contents = elf_section_data (sec)->this_hdr.contents; | |
1281 | ||
1282 | /* The deletion must stop at the next ALIGN reloc for an aligment | |
1283 | power larger than the number of bytes we are deleting. */ | |
1284 | ||
1285 | irelalign = NULL; | |
eea6121a | 1286 | toaddr = sec->size; |
5907e628 JL |
1287 | |
1288 | irel = elf_section_data (sec)->relocs; | |
1289 | irelend = irel + sec->reloc_count; | |
1290 | ||
1291 | /* Actually delete the bytes. */ | |
dc810e39 AM |
1292 | memmove (contents + addr, contents + addr + count, |
1293 | (size_t) (toaddr - addr - count)); | |
eea6121a | 1294 | sec->size -= count; |
5907e628 JL |
1295 | |
1296 | /* Adjust all the relocs. */ | |
1297 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1298 | { | |
1299 | /* Get the new reloc address. */ | |
1300 | if ((irel->r_offset > addr | |
1301 | && irel->r_offset < toaddr)) | |
1302 | irel->r_offset -= count; | |
1303 | } | |
1304 | ||
1305 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
1306 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1307 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1308 | isymend = isym + symtab_hdr->sh_info; | |
1309 | for (; isym < isymend; isym++) | |
5907e628 | 1310 | { |
6cdc0ccc AM |
1311 | if (isym->st_shndx == sec_shndx |
1312 | && isym->st_value > addr | |
1313 | && isym->st_value < toaddr) | |
1314 | isym->st_value -= count; | |
5907e628 JL |
1315 | } |
1316 | ||
1317 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1318 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1319 | - symtab_hdr->sh_info); | |
1320 | sym_hashes = elf_sym_hashes (abfd); | |
1321 | end_hashes = sym_hashes + symcount; | |
1322 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1323 | { |
9ad5cbcf AM |
1324 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1325 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1326 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1327 | && sym_hash->root.u.def.section == sec | |
1328 | && sym_hash->root.u.def.value > addr | |
1329 | && sym_hash->root.u.def.value < toaddr) | |
5907e628 | 1330 | { |
9ad5cbcf | 1331 | sym_hash->root.u.def.value -= count; |
5907e628 JL |
1332 | } |
1333 | } | |
1334 | ||
b34976b6 | 1335 | return TRUE; |
5907e628 JL |
1336 | } |
1337 | ||
b34976b6 AM |
1338 | /* Return TRUE if a symbol exists at the given address, else return |
1339 | FALSE. */ | |
1340 | static bfd_boolean | |
c6baf75e | 1341 | elf32_h8_symbol_address_p (bfd *abfd, asection *sec, bfd_vma addr) |
5907e628 JL |
1342 | { |
1343 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1344 | unsigned int sec_shndx; |
6cdc0ccc AM |
1345 | Elf_Internal_Sym *isym; |
1346 | Elf_Internal_Sym *isymend; | |
9ad5cbcf AM |
1347 | struct elf_link_hash_entry **sym_hashes; |
1348 | struct elf_link_hash_entry **end_hashes; | |
1349 | unsigned int symcount; | |
5907e628 | 1350 | |
9ad5cbcf | 1351 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1352 | |
1353 | /* Examine all the symbols. */ | |
9ad5cbcf | 1354 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
6cdc0ccc AM |
1355 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; |
1356 | isymend = isym + symtab_hdr->sh_info; | |
1357 | for (; isym < isymend; isym++) | |
5907e628 | 1358 | { |
6cdc0ccc AM |
1359 | if (isym->st_shndx == sec_shndx |
1360 | && isym->st_value == addr) | |
b34976b6 | 1361 | return TRUE; |
5907e628 JL |
1362 | } |
1363 | ||
9ad5cbcf AM |
1364 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1365 | - symtab_hdr->sh_info); | |
1366 | sym_hashes = elf_sym_hashes (abfd); | |
1367 | end_hashes = sym_hashes + symcount; | |
1368 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1369 | { |
9ad5cbcf AM |
1370 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1371 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1372 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1373 | && sym_hash->root.u.def.section == sec | |
1374 | && sym_hash->root.u.def.value == addr) | |
b34976b6 | 1375 | return TRUE; |
5907e628 | 1376 | } |
9ad5cbcf | 1377 | |
b34976b6 | 1378 | return FALSE; |
5907e628 JL |
1379 | } |
1380 | ||
1381 | /* This is a version of bfd_generic_get_relocated_section_contents | |
1382 | which uses elf32_h8_relocate_section. */ | |
1383 | ||
1384 | static bfd_byte * | |
c6baf75e RS |
1385 | elf32_h8_get_relocated_section_contents (bfd *output_bfd, |
1386 | struct bfd_link_info *link_info, | |
1387 | struct bfd_link_order *link_order, | |
1388 | bfd_byte *data, | |
1389 | bfd_boolean relocatable, | |
1390 | asymbol **symbols) | |
5907e628 JL |
1391 | { |
1392 | Elf_Internal_Shdr *symtab_hdr; | |
1393 | asection *input_section = link_order->u.indirect.section; | |
1394 | bfd *input_bfd = input_section->owner; | |
1395 | asection **sections = NULL; | |
1396 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 1397 | Elf_Internal_Sym *isymbuf = NULL; |
5907e628 JL |
1398 | |
1399 | /* We only need to handle the case of relaxing, or of having a | |
1400 | particular set of section contents, specially. */ | |
1049f94e | 1401 | if (relocatable |
5907e628 JL |
1402 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
1403 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
1404 | link_order, data, | |
1049f94e | 1405 | relocatable, |
5907e628 JL |
1406 | symbols); |
1407 | ||
1408 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1409 | ||
1410 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
eea6121a | 1411 | (size_t) input_section->size); |
5907e628 JL |
1412 | |
1413 | if ((input_section->flags & SEC_RELOC) != 0 | |
1414 | && input_section->reloc_count > 0) | |
1415 | { | |
5907e628 | 1416 | asection **secpp; |
6cdc0ccc | 1417 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 1418 | bfd_size_type amt; |
5907e628 | 1419 | |
45d6a902 | 1420 | internal_relocs = (_bfd_elf_link_read_relocs |
5907e628 | 1421 | (input_bfd, input_section, (PTR) NULL, |
b34976b6 | 1422 | (Elf_Internal_Rela *) NULL, FALSE)); |
5907e628 JL |
1423 | if (internal_relocs == NULL) |
1424 | goto error_return; | |
1425 | ||
6cdc0ccc AM |
1426 | if (symtab_hdr->sh_info != 0) |
1427 | { | |
1428 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1429 | if (isymbuf == NULL) | |
1430 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
1431 | symtab_hdr->sh_info, 0, | |
1432 | NULL, NULL, NULL); | |
1433 | if (isymbuf == NULL) | |
1434 | goto error_return; | |
1435 | } | |
5907e628 | 1436 | |
9ad5cbcf AM |
1437 | amt = symtab_hdr->sh_info; |
1438 | amt *= sizeof (asection *); | |
1439 | sections = (asection **) bfd_malloc (amt); | |
1440 | if (sections == NULL && amt != 0) | |
5907e628 JL |
1441 | goto error_return; |
1442 | ||
6cdc0ccc AM |
1443 | isymend = isymbuf + symtab_hdr->sh_info; |
1444 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
5907e628 JL |
1445 | { |
1446 | asection *isec; | |
1447 | ||
6cdc0ccc | 1448 | if (isym->st_shndx == SHN_UNDEF) |
5907e628 | 1449 | isec = bfd_und_section_ptr; |
6cdc0ccc | 1450 | else if (isym->st_shndx == SHN_ABS) |
5907e628 | 1451 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 1452 | else if (isym->st_shndx == SHN_COMMON) |
5907e628 JL |
1453 | isec = bfd_com_section_ptr; |
1454 | else | |
6cdc0ccc | 1455 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
5907e628 JL |
1456 | |
1457 | *secpp = isec; | |
1458 | } | |
1459 | ||
1460 | if (! elf32_h8_relocate_section (output_bfd, link_info, input_bfd, | |
1461 | input_section, data, internal_relocs, | |
6cdc0ccc | 1462 | isymbuf, sections)) |
5907e628 JL |
1463 | goto error_return; |
1464 | ||
1465 | if (sections != NULL) | |
1466 | free (sections); | |
6cdc0ccc AM |
1467 | if (isymbuf != NULL |
1468 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1469 | free (isymbuf); | |
1470 | if (elf_section_data (input_section)->relocs != internal_relocs) | |
5907e628 | 1471 | free (internal_relocs); |
5907e628 JL |
1472 | } |
1473 | ||
1474 | return data; | |
1475 | ||
1476 | error_return: | |
5907e628 JL |
1477 | if (sections != NULL) |
1478 | free (sections); | |
6cdc0ccc AM |
1479 | if (isymbuf != NULL |
1480 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1481 | free (isymbuf); | |
1482 | if (internal_relocs != NULL | |
1483 | && elf_section_data (input_section)->relocs != internal_relocs) | |
1484 | free (internal_relocs); | |
5907e628 JL |
1485 | return NULL; |
1486 | } | |
1487 | ||
0a83638b | 1488 | |
e01b0e69 JR |
1489 | #define TARGET_BIG_SYM bfd_elf32_h8300_vec |
1490 | #define TARGET_BIG_NAME "elf32-h8300" | |
1491 | #define ELF_ARCH bfd_arch_h8300 | |
1492 | #define ELF_MACHINE_CODE EM_H8_300 | |
1493 | #define ELF_MAXPAGESIZE 0x1 | |
1494 | #define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup | |
1495 | #define elf_info_to_howto elf32_h8_info_to_howto | |
1496 | #define elf_info_to_howto_rel elf32_h8_info_to_howto_rel | |
1497 | ||
0a83638b JL |
1498 | /* So we can set/examine bits in e_flags to get the specific |
1499 | H8 architecture in use. */ | |
1500 | #define elf_backend_final_write_processing \ | |
1501 | elf32_h8_final_write_processing | |
1502 | #define elf_backend_object_p \ | |
1503 | elf32_h8_object_p | |
1504 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
1505 | elf32_h8_merge_private_bfd_data | |
1506 | ||
e01b0e69 JR |
1507 | /* ??? when elf_backend_relocate_section is not defined, elf32-target.h |
1508 | defaults to using _bfd_generic_link_hash_table_create, but | |
c152c796 | 1509 | bfd_elf_size_dynamic_sections uses |
e01b0e69 JR |
1510 | dynobj = elf_hash_table (info)->dynobj; |
1511 | and thus requires an elf hash table. */ | |
1512 | #define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create | |
1513 | ||
5e47149d JL |
1514 | /* Use an H8 specific linker, not the ELF generic linker. */ |
1515 | #define elf_backend_relocate_section elf32_h8_relocate_section | |
f0fe0e16 | 1516 | #define elf_backend_rela_normal 1 |
2627de83 | 1517 | #define elf_backend_can_gc_sections 1 |
5e47149d | 1518 | |
5907e628 JL |
1519 | /* And relaxing stuff. */ |
1520 | #define bfd_elf32_bfd_relax_section elf32_h8_relax_section | |
1521 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
1522 | elf32_h8_get_relocated_section_contents | |
1523 | ||
1524 | ||
e01b0e69 | 1525 | #include "elf32-target.h" |