Commit | Line | Data |
---|---|---|
c2dcd04e NC |
1 | /* BFD back-end for Renesas H8/300 ELF binaries. |
2 | Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2003 | |
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 | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 | |
28 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
29 | static void elf32_h8_info_to_howto | |
30 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); | |
5e47149d | 31 | static void elf32_h8_info_to_howto_rel |
947216bf | 32 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
dc810e39 | 33 | static unsigned long elf32_h8_mach |
5e47149d | 34 | PARAMS ((flagword)); |
dc810e39 | 35 | static void elf32_h8_final_write_processing |
b34976b6 AM |
36 | PARAMS ((bfd *, bfd_boolean)); |
37 | static bfd_boolean elf32_h8_object_p | |
dc810e39 | 38 | PARAMS ((bfd *)); |
b34976b6 | 39 | static bfd_boolean elf32_h8_merge_private_bfd_data |
dc810e39 | 40 | PARAMS ((bfd *, bfd *)); |
b34976b6 AM |
41 | static bfd_boolean elf32_h8_relax_section |
42 | PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); | |
43 | static bfd_boolean elf32_h8_relax_delete_bytes | |
dc810e39 | 44 | PARAMS ((bfd *, asection *, bfd_vma, int)); |
b34976b6 | 45 | static bfd_boolean elf32_h8_symbol_address_p |
9ad5cbcf | 46 | PARAMS ((bfd *, asection *, bfd_vma)); |
dc810e39 AM |
47 | static bfd_byte *elf32_h8_get_relocated_section_contents |
48 | PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *, | |
b34976b6 | 49 | bfd_byte *, bfd_boolean, asymbol **)); |
5e47149d JL |
50 | static bfd_reloc_status_type elf32_h8_final_link_relocate |
51 | PARAMS ((unsigned long, bfd *, bfd *, asection *, | |
52 | bfd_byte *, bfd_vma, bfd_vma, bfd_vma, | |
53 | struct bfd_link_info *, asection *, int)); | |
b34976b6 | 54 | static bfd_boolean elf32_h8_relocate_section |
5e47149d JL |
55 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, |
56 | bfd_byte *, Elf_Internal_Rela *, | |
57 | Elf_Internal_Sym *, asection **)); | |
dc810e39 | 58 | static bfd_reloc_status_type special |
a00c9dbc | 59 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
e01b0e69 JR |
60 | |
61 | /* This does not include any relocation information, but should be | |
62 | good enough for GDB or objdump to read the file. */ | |
63 | ||
bc7eab72 | 64 | static reloc_howto_type h8_elf_howto_table[] = { |
e01b0e69 JR |
65 | #define R_H8_NONE_X 0 |
66 | HOWTO (R_H8_NONE, /* type */ | |
67 | 0, /* rightshift */ | |
68 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
69 | 0, /* bitsize */ | |
b34976b6 | 70 | FALSE, /* pc_relative */ |
e01b0e69 | 71 | 0, /* bitpos */ |
9d29900b NC |
72 | complain_overflow_dont,/* complain_on_overflow */ |
73 | special, /* special_function */ | |
e01b0e69 | 74 | "R_H8_NONE", /* name */ |
b34976b6 | 75 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
76 | 0, /* src_mask */ |
77 | 0, /* dst_mask */ | |
b34976b6 | 78 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
79 | #define R_H8_DIR32_X (R_H8_NONE_X + 1) |
80 | HOWTO (R_H8_DIR32, /* type */ | |
81 | 0, /* rightshift */ | |
82 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
83 | 32, /* bitsize */ | |
b34976b6 | 84 | FALSE, /* pc_relative */ |
e01b0e69 | 85 | 0, /* bitpos */ |
9d29900b NC |
86 | complain_overflow_dont,/* complain_on_overflow */ |
87 | special, /* special_function */ | |
e01b0e69 | 88 | "R_H8_DIR32", /* name */ |
b34976b6 | 89 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
90 | 0, /* src_mask */ |
91 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 92 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
93 | #define R_H8_DIR16_X (R_H8_DIR32_X + 1) |
94 | HOWTO (R_H8_DIR16, /* type */ | |
95 | 0, /* rightshift */ | |
96 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
97 | 16, /* bitsize */ | |
b34976b6 | 98 | FALSE, /* pc_relative */ |
e01b0e69 | 99 | 0, /* bitpos */ |
9d29900b NC |
100 | complain_overflow_dont,/* complain_on_overflow */ |
101 | special, /* special_function */ | |
e01b0e69 | 102 | "R_H8_DIR16", /* name */ |
b34976b6 | 103 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
104 | 0, /* src_mask */ |
105 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 106 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
107 | #define R_H8_DIR8_X (R_H8_DIR16_X + 1) |
108 | HOWTO (R_H8_DIR8, /* type */ | |
109 | 0, /* rightshift */ | |
110 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
111 | 8, /* bitsize */ | |
b34976b6 | 112 | FALSE, /* pc_relative */ |
e01b0e69 | 113 | 0, /* bitpos */ |
9d29900b NC |
114 | complain_overflow_dont,/* complain_on_overflow */ |
115 | special, /* special_function */ | |
116 | "R_H8_DIR8", /* name */ | |
b34976b6 | 117 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
118 | 0, /* src_mask */ |
119 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 120 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
121 | #define R_H8_DIR16A8_X (R_H8_DIR8_X + 1) |
122 | HOWTO (R_H8_DIR16A8, /* type */ | |
123 | 0, /* rightshift */ | |
124 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
125 | 16, /* bitsize */ | |
b34976b6 | 126 | FALSE, /* pc_relative */ |
e01b0e69 JR |
127 | 0, /* bitpos */ |
128 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 129 | special, /* special_function */ |
e01b0e69 | 130 | "R_H8_DIR16A8", /* name */ |
b34976b6 | 131 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
132 | 0, /* src_mask */ |
133 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 134 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
135 | #define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1) |
136 | HOWTO (R_H8_DIR16R8, /* type */ | |
137 | 0, /* rightshift */ | |
138 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
139 | 16, /* bitsize */ | |
b34976b6 | 140 | FALSE, /* pc_relative */ |
e01b0e69 JR |
141 | 0, /* bitpos */ |
142 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 143 | special, /* special_function */ |
e01b0e69 | 144 | "R_H8_DIR16R8", /* name */ |
b34976b6 | 145 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
146 | 0, /* src_mask */ |
147 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 148 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
149 | #define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1) |
150 | HOWTO (R_H8_DIR24A8, /* type */ | |
151 | 0, /* rightshift */ | |
152 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
153 | 24, /* bitsize */ | |
b34976b6 | 154 | FALSE, /* pc_relative */ |
e01b0e69 JR |
155 | 0, /* bitpos */ |
156 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 157 | special, /* special_function */ |
e01b0e69 | 158 | "R_H8_DIR24A8", /* name */ |
b34976b6 | 159 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
160 | 0xff000000, /* src_mask */ |
161 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 162 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
163 | #define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1) |
164 | HOWTO (R_H8_DIR24R8, /* type */ | |
165 | 0, /* rightshift */ | |
166 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
167 | 24, /* bitsize */ | |
b34976b6 | 168 | FALSE, /* pc_relative */ |
e01b0e69 JR |
169 | 0, /* bitpos */ |
170 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 171 | special, /* special_function */ |
e01b0e69 | 172 | "R_H8_DIR24R8", /* name */ |
b34976b6 | 173 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
174 | 0xff000000, /* src_mask */ |
175 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 176 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
177 | #define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1) |
178 | HOWTO (R_H8_DIR32A16, /* type */ | |
179 | 0, /* rightshift */ | |
180 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
181 | 32, /* bitsize */ | |
b34976b6 | 182 | FALSE, /* pc_relative */ |
e01b0e69 | 183 | 0, /* bitpos */ |
9d29900b NC |
184 | complain_overflow_dont,/* complain_on_overflow */ |
185 | special, /* special_function */ | |
8c17da6e | 186 | "R_H8_DIR32A16", /* name */ |
b34976b6 | 187 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
188 | 0, /* src_mask */ |
189 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 190 | FALSE), /* pcrel_offset */ |
f2352488 JL |
191 | #define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1) |
192 | HOWTO (R_H8_PCREL16, /* type */ | |
193 | 0, /* rightshift */ | |
194 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
195 | 16, /* bitsize */ | |
b34976b6 | 196 | TRUE, /* pc_relative */ |
f2352488 | 197 | 0, /* bitpos */ |
9d29900b NC |
198 | complain_overflow_signed,/* complain_on_overflow */ |
199 | special, /* special_function */ | |
f2352488 | 200 | "R_H8_PCREL16", /* name */ |
b34976b6 | 201 | FALSE, /* partial_inplace */ |
f2352488 JL |
202 | 0xffff, /* src_mask */ |
203 | 0xffff, /* dst_mask */ | |
b34976b6 | 204 | TRUE), /* pcrel_offset */ |
f2352488 JL |
205 | #define R_H8_PCREL8_X (R_H8_PCREL16_X + 1) |
206 | HOWTO (R_H8_PCREL8, /* type */ | |
207 | 0, /* rightshift */ | |
208 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
209 | 8, /* bitsize */ | |
b34976b6 | 210 | TRUE, /* pc_relative */ |
f2352488 | 211 | 0, /* bitpos */ |
9d29900b NC |
212 | complain_overflow_signed,/* complain_on_overflow */ |
213 | special, /* special_function */ | |
f2352488 | 214 | "R_H8_PCREL8", /* name */ |
b34976b6 | 215 | FALSE, /* partial_inplace */ |
f2352488 JL |
216 | 0xff, /* src_mask */ |
217 | 0xff, /* dst_mask */ | |
b34976b6 | 218 | TRUE), /* pcrel_offset */ |
e01b0e69 JR |
219 | }; |
220 | ||
221 | /* This structure is used to map BFD reloc codes to H8 ELF relocs. */ | |
222 | ||
bc7eab72 | 223 | struct elf_reloc_map { |
e01b0e69 JR |
224 | bfd_reloc_code_real_type bfd_reloc_val; |
225 | unsigned char howto_index; | |
226 | }; | |
227 | ||
228 | /* An array mapping BFD reloc codes to SH ELF relocs. */ | |
229 | ||
bc7eab72 | 230 | static const struct elf_reloc_map h8_reloc_map[] = { |
e01b0e69 JR |
231 | { BFD_RELOC_NONE, R_H8_NONE_X }, |
232 | { BFD_RELOC_32, R_H8_DIR32_X }, | |
233 | { BFD_RELOC_16, R_H8_DIR16_X }, | |
234 | { BFD_RELOC_8, R_H8_DIR8_X }, | |
235 | { BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X }, | |
236 | { BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X }, | |
237 | { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, | |
238 | { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, | |
239 | { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, | |
f2352488 JL |
240 | { BFD_RELOC_16_PCREL, R_H8_PCREL16_X }, |
241 | { BFD_RELOC_8_PCREL, R_H8_PCREL8_X }, | |
e01b0e69 JR |
242 | }; |
243 | ||
0a83638b | 244 | |
e01b0e69 JR |
245 | static reloc_howto_type * |
246 | elf32_h8_reloc_type_lookup (abfd, code) | |
247 | bfd *abfd ATTRIBUTE_UNUSED; | |
248 | bfd_reloc_code_real_type code; | |
249 | { | |
250 | unsigned int i; | |
251 | ||
252 | for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
253 | { | |
254 | if (h8_reloc_map[i].bfd_reloc_val == code) | |
255 | return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index]; | |
256 | } | |
257 | return NULL; | |
258 | } | |
259 | ||
260 | static void | |
261 | elf32_h8_info_to_howto (abfd, bfd_reloc, elf_reloc) | |
262 | bfd *abfd ATTRIBUTE_UNUSED; | |
263 | arelent *bfd_reloc; | |
947216bf | 264 | Elf_Internal_Rela *elf_reloc; |
e01b0e69 JR |
265 | { |
266 | unsigned int r; | |
267 | unsigned int i; | |
268 | ||
269 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
270 | for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++) | |
bc7eab72 | 271 | if (h8_elf_howto_table[i].type == r) |
e01b0e69 JR |
272 | { |
273 | bfd_reloc->howto = &h8_elf_howto_table[i]; | |
274 | return; | |
275 | } | |
276 | abort (); | |
277 | } | |
278 | ||
279 | static void | |
280 | elf32_h8_info_to_howto_rel (abfd, bfd_reloc, elf_reloc) | |
281 | bfd *abfd ATTRIBUTE_UNUSED; | |
282 | arelent *bfd_reloc; | |
947216bf | 283 | Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED; |
e01b0e69 JR |
284 | { |
285 | unsigned int r; | |
286 | ||
287 | abort (); | |
288 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
289 | bfd_reloc->howto = &h8_elf_howto_table[r]; | |
290 | } | |
291 | ||
a00c9dbc JL |
292 | /* Special handling for H8/300 relocs. |
293 | We only come here for pcrel stuff and return normally if not an -r link. | |
294 | When doing -r, we can't do any arithmetic for the pcrel stuff, because | |
295 | we support relaxing on the H8/300 series chips. */ | |
296 | static bfd_reloc_status_type | |
297 | special (abfd, reloc_entry, symbol, data, input_section, output_bfd, | |
298 | error_message) | |
299 | bfd *abfd ATTRIBUTE_UNUSED; | |
300 | arelent *reloc_entry ATTRIBUTE_UNUSED; | |
301 | asymbol *symbol ATTRIBUTE_UNUSED; | |
302 | PTR data ATTRIBUTE_UNUSED; | |
303 | asection *input_section ATTRIBUTE_UNUSED; | |
304 | bfd *output_bfd; | |
305 | char **error_message ATTRIBUTE_UNUSED; | |
306 | { | |
307 | if (output_bfd == (bfd *) NULL) | |
308 | return bfd_reloc_continue; | |
309 | ||
310 | /* Adjust the reloc address to that in the output section. */ | |
311 | reloc_entry->address += input_section->output_offset; | |
312 | return bfd_reloc_ok; | |
313 | } | |
5e47149d JL |
314 | |
315 | /* Perform a relocation as part of a final link. */ | |
316 | static bfd_reloc_status_type | |
317 | elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
318 | input_section, contents, offset, value, | |
319 | addend, info, sym_sec, is_local) | |
320 | unsigned long r_type; | |
321 | bfd *input_bfd; | |
322 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
323 | asection *input_section ATTRIBUTE_UNUSED; | |
324 | bfd_byte *contents; | |
325 | bfd_vma offset; | |
326 | bfd_vma value; | |
327 | bfd_vma addend; | |
328 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
329 | asection *sym_sec ATTRIBUTE_UNUSED; | |
330 | int is_local ATTRIBUTE_UNUSED; | |
331 | { | |
332 | bfd_byte *hit_data = contents + offset; | |
333 | ||
334 | switch (r_type) | |
335 | { | |
336 | ||
337 | case R_H8_NONE: | |
338 | return bfd_reloc_ok; | |
339 | ||
340 | case R_H8_DIR32: | |
341 | case R_H8_DIR32A16: | |
a00c9dbc | 342 | case R_H8_DIR24A8: |
5e47149d JL |
343 | value += addend; |
344 | bfd_put_32 (input_bfd, value, hit_data); | |
345 | return bfd_reloc_ok; | |
346 | ||
347 | case R_H8_DIR16: | |
348 | case R_H8_DIR16A8: | |
349 | case R_H8_DIR16R8: | |
350 | value += addend; | |
351 | bfd_put_16 (input_bfd, value, hit_data); | |
352 | return bfd_reloc_ok; | |
353 | ||
354 | /* AKA R_RELBYTE */ | |
355 | case R_H8_DIR8: | |
356 | value += addend; | |
357 | ||
5e47149d JL |
358 | bfd_put_8 (input_bfd, value, hit_data); |
359 | return bfd_reloc_ok; | |
360 | ||
5e47149d JL |
361 | case R_H8_DIR24R8: |
362 | value += addend; | |
363 | ||
a00c9dbc JL |
364 | /* HIT_DATA is the address for the first byte for the relocated |
365 | value. Subtract 1 so that we can manipulate the data in 32bit | |
366 | hunks. */ | |
367 | hit_data--; | |
368 | ||
369 | /* Clear out the top byte in value. */ | |
5e47149d | 370 | value &= 0xffffff; |
a00c9dbc JL |
371 | |
372 | /* Retrieve the type byte for value from the section contents. */ | |
5e47149d | 373 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000); |
a00c9dbc JL |
374 | |
375 | /* Now scribble it out in one 32bit hunk. */ | |
5e47149d JL |
376 | bfd_put_32 (input_bfd, value, hit_data); |
377 | return bfd_reloc_ok; | |
378 | ||
f2352488 JL |
379 | case R_H8_PCREL16: |
380 | value -= (input_section->output_section->vma | |
381 | + input_section->output_offset); | |
382 | value -= offset; | |
383 | value += addend; | |
384 | ||
a00c9dbc JL |
385 | /* The value is relative to the start of the instruction, |
386 | not the relocation offset. Subtract 2 to account for | |
387 | this minor issue. */ | |
388 | value -= 2; | |
389 | ||
f2352488 JL |
390 | bfd_put_16 (input_bfd, value, hit_data); |
391 | return bfd_reloc_ok; | |
392 | ||
393 | case R_H8_PCREL8: | |
394 | value -= (input_section->output_section->vma | |
395 | + input_section->output_offset); | |
396 | value -= offset; | |
397 | value += addend; | |
398 | ||
a00c9dbc JL |
399 | /* The value is relative to the start of the instruction, |
400 | not the relocation offset. Subtract 1 to account for | |
401 | this minor issue. */ | |
402 | value -= 1; | |
403 | ||
f2352488 JL |
404 | bfd_put_8 (input_bfd, value, hit_data); |
405 | return bfd_reloc_ok; | |
406 | ||
5e47149d JL |
407 | default: |
408 | return bfd_reloc_notsupported; | |
409 | } | |
410 | } | |
411 | \f | |
412 | /* Relocate an H8 ELF section. */ | |
b34976b6 | 413 | static bfd_boolean |
5e47149d JL |
414 | elf32_h8_relocate_section (output_bfd, info, input_bfd, input_section, |
415 | contents, relocs, local_syms, local_sections) | |
416 | bfd *output_bfd; | |
417 | struct bfd_link_info *info; | |
418 | bfd *input_bfd; | |
419 | asection *input_section; | |
420 | bfd_byte *contents; | |
421 | Elf_Internal_Rela *relocs; | |
422 | Elf_Internal_Sym *local_syms; | |
423 | asection **local_sections; | |
424 | { | |
425 | Elf_Internal_Shdr *symtab_hdr; | |
426 | struct elf_link_hash_entry **sym_hashes; | |
427 | Elf_Internal_Rela *rel, *relend; | |
428 | ||
1049f94e | 429 | if (info->relocatable) |
b34976b6 | 430 | return TRUE; |
f0fe0e16 | 431 | |
5e47149d JL |
432 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
433 | sym_hashes = elf_sym_hashes (input_bfd); | |
434 | ||
435 | rel = relocs; | |
436 | relend = relocs + input_section->reloc_count; | |
437 | for (; rel < relend; rel++) | |
438 | { | |
dc810e39 | 439 | unsigned int r_type; |
5e47149d JL |
440 | unsigned long r_symndx; |
441 | Elf_Internal_Sym *sym; | |
442 | asection *sec; | |
443 | struct elf_link_hash_entry *h; | |
444 | bfd_vma relocation; | |
445 | bfd_reloc_status_type r; | |
446 | ||
f0fe0e16 | 447 | /* This is a final link. */ |
5e47149d JL |
448 | r_symndx = ELF32_R_SYM (rel->r_info); |
449 | r_type = ELF32_R_TYPE (rel->r_info); | |
5e47149d JL |
450 | h = NULL; |
451 | sym = NULL; | |
452 | sec = NULL; | |
453 | if (r_symndx < symtab_hdr->sh_info) | |
454 | { | |
455 | sym = local_syms + r_symndx; | |
456 | sec = local_sections[r_symndx]; | |
f8df10f4 | 457 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
5e47149d JL |
458 | } |
459 | else | |
460 | { | |
461 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
462 | while (h->root.type == bfd_link_hash_indirect | |
463 | || h->root.type == bfd_link_hash_warning) | |
464 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
465 | if (h->root.type == bfd_link_hash_defined | |
466 | || h->root.type == bfd_link_hash_defweak) | |
467 | { | |
468 | sec = h->root.u.def.section; | |
469 | relocation = (h->root.u.def.value | |
470 | + sec->output_section->vma | |
471 | + sec->output_offset); | |
472 | } | |
473 | else if (h->root.type == bfd_link_hash_undefweak) | |
474 | relocation = 0; | |
475 | else | |
476 | { | |
477 | if (! ((*info->callbacks->undefined_symbol) | |
478 | (info, h->root.root.string, input_bfd, | |
b34976b6 AM |
479 | input_section, rel->r_offset, TRUE))) |
480 | return FALSE; | |
5e47149d JL |
481 | relocation = 0; |
482 | } | |
483 | } | |
484 | ||
485 | r = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
486 | input_section, | |
487 | contents, rel->r_offset, | |
488 | relocation, rel->r_addend, | |
489 | info, sec, h == NULL); | |
490 | ||
491 | if (r != bfd_reloc_ok) | |
492 | { | |
493 | const char *name; | |
494 | const char *msg = (const char *) 0; | |
495 | arelent bfd_reloc; | |
496 | reloc_howto_type *howto; | |
497 | ||
498 | elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel); | |
499 | howto = bfd_reloc.howto; | |
dc810e39 | 500 | |
5e47149d JL |
501 | if (h != NULL) |
502 | name = h->root.root.string; | |
503 | else | |
504 | { | |
505 | name = (bfd_elf_string_from_elf_section | |
506 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
507 | if (name == NULL || *name == '\0') | |
508 | name = bfd_section_name (input_bfd, sec); | |
509 | } | |
510 | ||
511 | switch (r) | |
512 | { | |
513 | case bfd_reloc_overflow: | |
514 | if (! ((*info->callbacks->reloc_overflow) | |
515 | (info, name, howto->name, (bfd_vma) 0, | |
516 | input_bfd, input_section, rel->r_offset))) | |
b34976b6 | 517 | return FALSE; |
5e47149d JL |
518 | break; |
519 | ||
520 | case bfd_reloc_undefined: | |
521 | if (! ((*info->callbacks->undefined_symbol) | |
522 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
523 | rel->r_offset, TRUE))) |
524 | return FALSE; | |
5e47149d JL |
525 | break; |
526 | ||
527 | case bfd_reloc_outofrange: | |
528 | msg = _("internal error: out of range error"); | |
529 | goto common_error; | |
530 | ||
531 | case bfd_reloc_notsupported: | |
532 | msg = _("internal error: unsupported relocation error"); | |
533 | goto common_error; | |
534 | ||
535 | case bfd_reloc_dangerous: | |
536 | msg = _("internal error: dangerous error"); | |
537 | goto common_error; | |
538 | ||
539 | default: | |
540 | msg = _("internal error: unknown error"); | |
541 | /* fall through */ | |
542 | ||
543 | common_error: | |
544 | if (!((*info->callbacks->warning) | |
545 | (info, msg, name, input_bfd, input_section, | |
546 | rel->r_offset))) | |
b34976b6 | 547 | return FALSE; |
5e47149d JL |
548 | break; |
549 | } | |
550 | } | |
551 | } | |
552 | ||
b34976b6 | 553 | return TRUE; |
5e47149d JL |
554 | } |
555 | ||
0a83638b JL |
556 | /* Object files encode the specific H8 model they were compiled |
557 | for in the ELF flags field. | |
558 | ||
559 | Examine that field and return the proper BFD machine type for | |
560 | the object file. */ | |
dc810e39 | 561 | static unsigned long |
0a83638b JL |
562 | elf32_h8_mach (flags) |
563 | flagword flags; | |
564 | { | |
565 | switch (flags & EF_H8_MACH) | |
566 | { | |
567 | case E_H8_MACH_H8300: | |
568 | default: | |
569 | return bfd_mach_h8300; | |
570 | ||
571 | case E_H8_MACH_H8300H: | |
572 | return bfd_mach_h8300h; | |
573 | ||
574 | case E_H8_MACH_H8300S: | |
575 | return bfd_mach_h8300s; | |
8d9cd6b1 NC |
576 | |
577 | case E_H8_MACH_H8300HN: | |
578 | return bfd_mach_h8300hn; | |
579 | ||
580 | case E_H8_MACH_H8300SN: | |
581 | return bfd_mach_h8300sn; | |
5d1db417 MS |
582 | |
583 | case E_H8_MACH_H8300SX: | |
584 | return bfd_mach_h8300sx; | |
f4984206 RS |
585 | |
586 | case E_H8_MACH_H8300SXN: | |
587 | return bfd_mach_h8300sxn; | |
0a83638b JL |
588 | } |
589 | } | |
590 | ||
591 | /* The final processing done just before writing out a H8 ELF object | |
592 | file. We use this opportunity to encode the BFD machine type | |
593 | into the flags field in the object file. */ | |
594 | ||
dc810e39 | 595 | static void |
0a83638b JL |
596 | elf32_h8_final_write_processing (abfd, linker) |
597 | bfd *abfd; | |
b34976b6 | 598 | bfd_boolean linker ATTRIBUTE_UNUSED; |
0a83638b JL |
599 | { |
600 | unsigned long val; | |
601 | ||
602 | switch (bfd_get_mach (abfd)) | |
603 | { | |
604 | default: | |
605 | case bfd_mach_h8300: | |
606 | val = E_H8_MACH_H8300; | |
607 | break; | |
608 | ||
609 | case bfd_mach_h8300h: | |
610 | val = E_H8_MACH_H8300H; | |
611 | break; | |
612 | ||
613 | case bfd_mach_h8300s: | |
614 | val = E_H8_MACH_H8300S; | |
615 | break; | |
8d9cd6b1 NC |
616 | |
617 | case bfd_mach_h8300hn: | |
618 | val = E_H8_MACH_H8300HN; | |
619 | break; | |
620 | ||
621 | case bfd_mach_h8300sn: | |
622 | val = E_H8_MACH_H8300SN; | |
623 | break; | |
5d1db417 MS |
624 | |
625 | case bfd_mach_h8300sx: | |
626 | val = E_H8_MACH_H8300SX; | |
627 | break; | |
f4984206 RS |
628 | |
629 | case bfd_mach_h8300sxn: | |
630 | val = E_H8_MACH_H8300SXN; | |
631 | break; | |
0a83638b JL |
632 | } |
633 | ||
634 | elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH); | |
635 | elf_elfheader (abfd)->e_flags |= val; | |
636 | } | |
637 | ||
638 | /* Return nonzero if ABFD represents a valid H8 ELF object file; also | |
639 | record the encoded machine type found in the ELF flags. */ | |
640 | ||
b34976b6 | 641 | static bfd_boolean |
0a83638b JL |
642 | elf32_h8_object_p (abfd) |
643 | bfd *abfd; | |
644 | { | |
645 | bfd_default_set_arch_mach (abfd, bfd_arch_h8300, | |
646 | elf32_h8_mach (elf_elfheader (abfd)->e_flags)); | |
b34976b6 | 647 | return TRUE; |
0a83638b JL |
648 | } |
649 | ||
650 | /* Merge backend specific data from an object file to the output | |
651 | object file when linking. The only data we need to copy at this | |
652 | time is the architecture/machine information. */ | |
653 | ||
b34976b6 | 654 | static bfd_boolean |
0a83638b JL |
655 | elf32_h8_merge_private_bfd_data (ibfd, obfd) |
656 | bfd *ibfd; | |
657 | bfd *obfd; | |
658 | { | |
659 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
660 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 661 | return TRUE; |
0a83638b JL |
662 | |
663 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
664 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
665 | { | |
666 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
667 | bfd_get_mach (ibfd))) | |
b34976b6 | 668 | return FALSE; |
0a83638b JL |
669 | } |
670 | ||
b34976b6 | 671 | return TRUE; |
0a83638b JL |
672 | } |
673 | ||
5907e628 JL |
674 | /* This function handles relaxing for the H8.. |
675 | ||
676 | There's a few relaxing opportunites available on the H8: | |
677 | ||
678 | jmp/jsr:24 -> bra/bsr:8 2 bytes | |
679 | The jmp may be completely eliminated if the previous insn is a | |
680 | conditional branch to the insn after the jump. In that case | |
681 | we invert the branch and delete the jump and save 4 bytes. | |
682 | ||
683 | bCC:16 -> bCC:8 2 bytes | |
684 | bsr:16 -> bsr:8 2 bytes | |
685 | ||
686 | mov.b:16 -> mov.b:8 2 bytes | |
687 | mov.b:24/32 -> mov.b:8 4 bytes | |
688 | ||
76f99c63 | 689 | mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes */ |
5907e628 | 690 | |
b34976b6 | 691 | static bfd_boolean |
5907e628 JL |
692 | elf32_h8_relax_section (abfd, sec, link_info, again) |
693 | bfd *abfd; | |
694 | asection *sec; | |
695 | struct bfd_link_info *link_info; | |
b34976b6 | 696 | bfd_boolean *again; |
5907e628 JL |
697 | { |
698 | Elf_Internal_Shdr *symtab_hdr; | |
699 | Elf_Internal_Rela *internal_relocs; | |
5907e628 JL |
700 | Elf_Internal_Rela *irel, *irelend; |
701 | bfd_byte *contents = NULL; | |
6cdc0ccc | 702 | Elf_Internal_Sym *isymbuf = NULL; |
5907e628 JL |
703 | static asection *last_input_section = NULL; |
704 | static Elf_Internal_Rela *last_reloc = NULL; | |
705 | ||
706 | /* Assume nothing changes. */ | |
b34976b6 | 707 | *again = FALSE; |
5907e628 | 708 | |
1049f94e | 709 | /* We don't have to do anything for a relocatable link, if |
5907e628 JL |
710 | this section does not have relocs, or if this is not a |
711 | code section. */ | |
1049f94e | 712 | if (link_info->relocatable |
5907e628 JL |
713 | || (sec->flags & SEC_RELOC) == 0 |
714 | || sec->reloc_count == 0 | |
715 | || (sec->flags & SEC_CODE) == 0) | |
b34976b6 | 716 | return TRUE; |
5907e628 JL |
717 | |
718 | /* If this is the first time we have been called for this section, | |
719 | initialize the cooked size. */ | |
720 | if (sec->_cooked_size == 0) | |
721 | sec->_cooked_size = sec->_raw_size; | |
722 | ||
723 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
724 | ||
725 | /* Get a copy of the native relocations. */ | |
45d6a902 | 726 | internal_relocs = (_bfd_elf_link_read_relocs |
5907e628 JL |
727 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
728 | link_info->keep_memory)); | |
729 | if (internal_relocs == NULL) | |
730 | goto error_return; | |
5907e628 JL |
731 | |
732 | if (sec != last_input_section) | |
733 | last_reloc = NULL; | |
734 | ||
735 | last_input_section = sec; | |
736 | ||
737 | /* Walk through the relocs looking for relaxing opportunities. */ | |
738 | irelend = internal_relocs + sec->reloc_count; | |
739 | for (irel = internal_relocs; irel < irelend; irel++) | |
740 | { | |
741 | bfd_vma symval; | |
742 | ||
743 | /* Keep track of the previous reloc so that we can delete | |
744 | some long jumps created by the compiler. */ | |
745 | if (irel != internal_relocs) | |
746 | last_reloc = irel - 1; | |
747 | ||
76f99c63 JL |
748 | if (ELF32_R_TYPE (irel->r_info) != R_H8_DIR24R8 |
749 | && ELF32_R_TYPE (irel->r_info) != R_H8_PCREL16 | |
750 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR16A8 | |
751 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR24A8 | |
752 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR32A16) | |
753 | continue; | |
754 | ||
5907e628 JL |
755 | /* Get the section contents if we haven't done so already. */ |
756 | if (contents == NULL) | |
757 | { | |
758 | /* Get cached copy if it exists. */ | |
759 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
760 | contents = elf_section_data (sec)->this_hdr.contents; | |
761 | else | |
762 | { | |
763 | /* Go get them off disk. */ | |
764 | contents = (bfd_byte *) bfd_malloc (sec->_raw_size); | |
765 | if (contents == NULL) | |
766 | goto error_return; | |
5907e628 JL |
767 | |
768 | if (! bfd_get_section_contents (abfd, sec, contents, | |
769 | (file_ptr) 0, sec->_raw_size)) | |
770 | goto error_return; | |
771 | } | |
772 | } | |
773 | ||
9ad5cbcf | 774 | /* Read this BFD's local symbols if we haven't done so already. */ |
6cdc0ccc | 775 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
5907e628 | 776 | { |
6cdc0ccc AM |
777 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
778 | if (isymbuf == NULL) | |
779 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
780 | symtab_hdr->sh_info, 0, | |
781 | NULL, NULL, NULL); | |
782 | if (isymbuf == NULL) | |
783 | goto error_return; | |
5907e628 JL |
784 | } |
785 | ||
786 | /* Get the value of the symbol referred to by the reloc. */ | |
787 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
788 | { | |
5907e628 | 789 | /* A local symbol. */ |
6cdc0ccc AM |
790 | Elf_Internal_Sym *isym; |
791 | asection *sym_sec; | |
5907e628 | 792 | |
32ac2c9a | 793 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
6cdc0ccc | 794 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
03d14457 NC |
795 | symval = isym->st_value; |
796 | /* If the reloc is absolute, it will not have | |
797 | a symbol or section associated with it. */ | |
798 | if (sym_sec) | |
799 | symval += sym_sec->output_section->vma | |
800 | + sym_sec->output_offset; | |
5907e628 JL |
801 | } |
802 | else | |
803 | { | |
804 | unsigned long indx; | |
805 | struct elf_link_hash_entry *h; | |
806 | ||
807 | /* An external symbol. */ | |
808 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
809 | h = elf_sym_hashes (abfd)[indx]; | |
810 | BFD_ASSERT (h != NULL); | |
811 | if (h->root.type != bfd_link_hash_defined | |
812 | && h->root.type != bfd_link_hash_defweak) | |
813 | { | |
814 | /* This appears to be a reference to an undefined | |
815 | symbol. Just ignore it--it will be caught by the | |
816 | regular reloc processing. */ | |
817 | continue; | |
818 | } | |
819 | ||
820 | symval = (h->root.u.def.value | |
821 | + h->root.u.def.section->output_section->vma | |
822 | + h->root.u.def.section->output_offset); | |
823 | } | |
824 | ||
825 | /* For simplicity of coding, we are going to modify the section | |
826 | contents, the section relocs, and the BFD symbol table. We | |
827 | must tell the rest of the code not to free up this | |
828 | information. It would be possible to instead create a table | |
829 | of changes which have to be made, as is done in coff-mips.c; | |
830 | that would be more work, but would require less memory when | |
831 | the linker is run. */ | |
832 | switch (ELF32_R_TYPE (irel->r_info)) | |
833 | { | |
834 | /* Try to turn a 24 bit absolute branch/call into an 8 bit | |
835 | pc-relative branch/call. */ | |
836 | case R_H8_DIR24R8: | |
837 | { | |
838 | bfd_vma value = symval + irel->r_addend; | |
839 | bfd_vma dot, gap; | |
840 | ||
841 | /* Get the address of this instruction. */ | |
842 | dot = (sec->output_section->vma | |
843 | + sec->output_offset + irel->r_offset - 1); | |
844 | ||
845 | /* Compute the distance from this insn to the branch target. */ | |
846 | gap = value - dot; | |
847 | ||
848 | /* If the distance is within -126..+130 inclusive, then we can | |
849 | relax this jump. +130 is valid since the target will move | |
850 | two bytes closer if we do relax this branch. */ | |
dc810e39 | 851 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 JL |
852 | { |
853 | unsigned char code; | |
854 | ||
855 | /* Note that we've changed the relocs, section contents, | |
856 | etc. */ | |
857 | elf_section_data (sec)->relocs = internal_relocs; | |
5907e628 | 858 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 859 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 860 | |
e514ac71 NC |
861 | /* Get the instruction code being relaxed. */ |
862 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
863 | ||
5907e628 JL |
864 | /* If the previous instruction conditionally jumped around |
865 | this instruction, we may be able to reverse the condition | |
866 | and redirect the previous instruction to the target of | |
867 | this instruction. | |
868 | ||
869 | Such sequences are used by the compiler to deal with | |
e514ac71 NC |
870 | long conditional branches. |
871 | ||
872 | Only perform this optimisation for jumps (code 0x5a) not | |
873 | subroutine calls, as otherwise it could transform: | |
b34976b6 | 874 | |
e514ac71 NC |
875 | mov.w r0,r0 |
876 | beq .L1 | |
877 | jsr @_bar | |
878 | .L1: rts | |
879 | _bar: rts | |
880 | into: | |
881 | mov.w r0,r0 | |
882 | bne _bar | |
883 | rts | |
884 | _bar: rts | |
885 | ||
886 | which changes the call (jsr) into a branch (bne). */ | |
887 | if (code == 0x5a | |
888 | && (int) gap <= 130 | |
dc810e39 | 889 | && (int) gap >= -128 |
5907e628 JL |
890 | && last_reloc |
891 | && ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8 | |
892 | && ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info) | |
893 | { | |
894 | bfd_vma last_value; | |
895 | asection *last_sym_sec; | |
6cdc0ccc | 896 | Elf_Internal_Sym *last_sym; |
5907e628 JL |
897 | |
898 | /* We will need to examine the symbol used by the | |
899 | previous relocation. */ | |
dc810e39 | 900 | |
6cdc0ccc | 901 | last_sym = isymbuf + ELF32_R_SYM (last_reloc->r_info); |
5907e628 | 902 | last_sym_sec |
6cdc0ccc AM |
903 | = bfd_section_from_elf_index (abfd, last_sym->st_shndx); |
904 | last_value = (last_sym->st_value | |
5907e628 JL |
905 | + last_sym_sec->output_section->vma |
906 | + last_sym_sec->output_offset); | |
907 | ||
908 | /* Verify that the previous relocation was for a | |
909 | branch around this instruction and that no symbol | |
910 | exists at the current location. */ | |
911 | if (last_value == dot + 4 | |
912 | && last_reloc->r_offset + 2 == irel->r_offset | |
9ad5cbcf | 913 | && ! elf32_h8_symbol_address_p (abfd, sec, dot)) |
5907e628 JL |
914 | { |
915 | /* We can eliminate this jump. Twiddle the | |
916 | previous relocation as necessary. */ | |
917 | irel->r_info | |
918 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
919 | ELF32_R_TYPE (R_H8_NONE)); | |
920 | ||
bc7eab72 | 921 | last_reloc->r_info |
5907e628 | 922 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
bc7eab72 KH |
923 | ELF32_R_TYPE (R_H8_PCREL8)); |
924 | last_reloc->r_addend = irel->r_addend; | |
5907e628 JL |
925 | |
926 | code = bfd_get_8 (abfd, | |
927 | contents + last_reloc->r_offset - 1); | |
928 | code ^= 1; | |
929 | bfd_put_8 (abfd, | |
930 | code, | |
931 | contents + last_reloc->r_offset - 1); | |
932 | ||
933 | /* Delete four bytes of data. */ | |
934 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
935 | irel->r_offset - 1, | |
936 | 4)) | |
937 | goto error_return; | |
938 | ||
b34976b6 | 939 | *again = TRUE; |
5907e628 JL |
940 | break; |
941 | } | |
942 | } | |
943 | ||
5907e628 JL |
944 | if (code == 0x5e) |
945 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 1); | |
946 | else if (code == 0x5a) | |
947 | bfd_put_8 (abfd, 0x40, contents + irel->r_offset - 1); | |
948 | else | |
949 | abort (); | |
950 | ||
951 | /* Fix the relocation's type. */ | |
952 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
953 | R_H8_PCREL8); | |
954 | ||
955 | /* Delete two bytes of data. */ | |
956 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
957 | irel->r_offset + 1, 2)) | |
958 | goto error_return; | |
959 | ||
960 | /* That will change things, so, we should relax again. | |
961 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 962 | *again = TRUE; |
5907e628 JL |
963 | } |
964 | break; | |
965 | } | |
966 | ||
967 | /* Try to turn a 16bit pc-relative branch into a 8bit pc-relative | |
968 | branch. */ | |
969 | case R_H8_PCREL16: | |
970 | { | |
971 | bfd_vma value = symval + irel->r_addend; | |
972 | bfd_vma dot; | |
973 | bfd_vma gap; | |
974 | ||
975 | /* Get the address of this instruction. */ | |
976 | dot = (sec->output_section->vma | |
977 | + sec->output_offset | |
978 | + irel->r_offset - 2); | |
dc810e39 | 979 | |
5907e628 JL |
980 | gap = value - dot; |
981 | ||
982 | /* If the distance is within -126..+130 inclusive, then we can | |
983 | relax this jump. +130 is valid since the target will move | |
984 | two bytes closer if we do relax this branch. */ | |
bc7eab72 | 985 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 | 986 | { |
bc7eab72 | 987 | unsigned char code; |
5907e628 | 988 | |
bc7eab72 | 989 | /* Note that we've changed the relocs, section contents, |
5907e628 | 990 | etc. */ |
bc7eab72 KH |
991 | elf_section_data (sec)->relocs = internal_relocs; |
992 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 993 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 994 | |
bc7eab72 KH |
995 | /* Get the opcode. */ |
996 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 JL |
997 | |
998 | if (code == 0x58) | |
999 | { | |
1000 | /* bCC:16 -> bCC:8 */ | |
1001 | /* Get the condition code from the original insn. */ | |
1002 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
1003 | code &= 0xf0; | |
1004 | code >>= 4; | |
1005 | code |= 0x40; | |
1006 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
1007 | } | |
1008 | else if (code == 0x5c) | |
1009 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 2); | |
1010 | else | |
1011 | abort (); | |
1012 | ||
1013 | /* Fix the relocation's type. */ | |
bc7eab72 | 1014 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
5907e628 | 1015 | R_H8_PCREL8); |
bc7eab72 | 1016 | irel->r_offset--; |
5907e628 | 1017 | |
bc7eab72 KH |
1018 | /* Delete two bytes of data. */ |
1019 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1020 | irel->r_offset + 1, 2)) |
1021 | goto error_return; | |
1022 | ||
bc7eab72 | 1023 | /* That will change things, so, we should relax again. |
5907e628 | 1024 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1025 | *again = TRUE; |
5907e628 JL |
1026 | } |
1027 | break; | |
1028 | } | |
1029 | ||
1030 | /* This is a 16 bit absolute address in a "mov.b" insn, which may | |
1031 | become an 8 bit absolute address if its in the right range. */ | |
1032 | case R_H8_DIR16A8: | |
1033 | { | |
1034 | bfd_vma value = symval + irel->r_addend; | |
1035 | ||
1036 | if ((bfd_get_mach (abfd) == bfd_mach_h8300 | |
bc7eab72 KH |
1037 | && value >= 0xff00 |
1038 | && value <= 0xffff) | |
1039 | || ((bfd_get_mach (abfd) == bfd_mach_h8300h | |
5d1db417 MS |
1040 | /* FIXME: h8300hn? */ |
1041 | || bfd_get_mach (abfd) == bfd_mach_h8300s | |
1042 | /* FIXME: h8300sn? */ | |
1043 | || bfd_get_mach (abfd) == bfd_mach_h8300sx) | |
5907e628 JL |
1044 | && value >= 0xffff00 |
1045 | && value <= 0xffffff)) | |
1046 | { | |
bc7eab72 | 1047 | unsigned char code; |
5907e628 | 1048 | |
bc7eab72 | 1049 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1050 | etc. */ |
bc7eab72 KH |
1051 | elf_section_data (sec)->relocs = internal_relocs; |
1052 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1053 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1054 | |
bc7eab72 KH |
1055 | /* Get the opcode. */ |
1056 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1057 | |
bc7eab72 KH |
1058 | /* Sanity check. */ |
1059 | if (code != 0x6a) | |
5907e628 JL |
1060 | abort (); |
1061 | ||
bc7eab72 | 1062 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
5907e628 | 1063 | |
bc7eab72 | 1064 | if ((code & 0xf0) == 0x00) |
5907e628 JL |
1065 | bfd_put_8 (abfd, |
1066 | (code & 0xf) | 0x20, | |
bc7eab72 KH |
1067 | contents + irel->r_offset - 2); |
1068 | else if ((code & 0xf0) == 0x80) | |
5907e628 JL |
1069 | bfd_put_8 (abfd, |
1070 | (code & 0xf) | 0x30, | |
bc7eab72 KH |
1071 | contents + irel->r_offset - 2); |
1072 | else | |
5907e628 JL |
1073 | abort (); |
1074 | ||
bc7eab72 KH |
1075 | /* Fix the relocation's type. */ |
1076 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 JL |
1077 | R_H8_DIR8); |
1078 | ||
8c17da6e NC |
1079 | /* Move the relocation. */ |
1080 | irel->r_offset--; | |
1081 | ||
bc7eab72 KH |
1082 | /* Delete two bytes of data. */ |
1083 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1084 | irel->r_offset + 1, 2)) |
1085 | goto error_return; | |
1086 | ||
bc7eab72 | 1087 | /* That will change things, so, we should relax again. |
5907e628 | 1088 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1089 | *again = TRUE; |
5907e628 JL |
1090 | } |
1091 | break; | |
1092 | } | |
1093 | ||
1094 | /* This is a 24 bit absolute address in a "mov.b" insn, which may | |
1095 | become an 8 bit absolute address if its in the right range. */ | |
1096 | case R_H8_DIR24A8: | |
1097 | { | |
1098 | bfd_vma value = symval + irel->r_addend; | |
1099 | ||
1100 | if ((bfd_get_mach (abfd) == bfd_mach_h8300 | |
bc7eab72 KH |
1101 | && value >= 0xff00 |
1102 | && value <= 0xffff) | |
1103 | || ((bfd_get_mach (abfd) == bfd_mach_h8300h | |
5d1db417 MS |
1104 | /* FIXME: h8300hn? */ |
1105 | || bfd_get_mach (abfd) == bfd_mach_h8300s | |
1106 | /* FIXME: h8300sn? */ | |
1107 | || bfd_get_mach (abfd) == bfd_mach_h8300sx) | |
5907e628 JL |
1108 | && value >= 0xffff00 |
1109 | && value <= 0xffffff)) | |
1110 | { | |
03d14457 | 1111 | bfd_boolean skip = FALSE; |
bc7eab72 | 1112 | unsigned char code; |
5907e628 | 1113 | |
bc7eab72 | 1114 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1115 | etc. */ |
bc7eab72 KH |
1116 | elf_section_data (sec)->relocs = internal_relocs; |
1117 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1118 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1119 | |
bc7eab72 KH |
1120 | /* Get the opcode. */ |
1121 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1122 | |
bc7eab72 KH |
1123 | /* Sanity check. */ |
1124 | if (code != 0x6a) | |
5907e628 JL |
1125 | abort (); |
1126 | ||
bc7eab72 | 1127 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
5907e628 | 1128 | |
03d14457 NC |
1129 | switch (code & 0xf0) |
1130 | { | |
1131 | case 0x00: | |
1132 | bfd_put_8 (abfd, (code & 0xf) | 0x20, | |
1133 | contents + irel->r_offset - 2); | |
1134 | break; | |
1135 | case 0x80: | |
1136 | bfd_put_8 (abfd, (code & 0xf) | 0x30, | |
1137 | contents + irel->r_offset - 2); | |
1138 | break; | |
1139 | case 0x20: | |
1140 | case 0xa0: | |
1141 | /* Skip 32bit versions. */ | |
1142 | skip = TRUE; | |
1143 | break; | |
1144 | default: | |
1145 | abort (); | |
1146 | } | |
1147 | ||
1148 | if (skip) | |
1149 | break; | |
5907e628 | 1150 | |
bc7eab72 KH |
1151 | /* Fix the relocation's type. */ |
1152 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 JL |
1153 | R_H8_DIR8); |
1154 | ||
bc7eab72 KH |
1155 | /* Delete two bytes of data. */ |
1156 | if (!elf32_h8_relax_delete_bytes (abfd, sec, irel->r_offset, 2)) | |
5907e628 JL |
1157 | goto error_return; |
1158 | ||
bc7eab72 | 1159 | /* That will change things, so, we should relax again. |
5907e628 | 1160 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1161 | *again = TRUE; |
5907e628 JL |
1162 | } |
1163 | } | |
1164 | ||
1165 | /* FALLTHRU */ | |
1166 | ||
1167 | /* This is a 24/32bit absolute address in a "mov" insn, which may | |
1168 | become a 16bit absoulte address if it is in the right range. */ | |
1169 | case R_H8_DIR32A16: | |
1170 | { | |
1171 | bfd_vma value = symval + irel->r_addend; | |
1172 | ||
1173 | if (value <= 0x7fff || value >= 0xff8000) | |
1174 | { | |
bc7eab72 | 1175 | unsigned char code; |
5907e628 | 1176 | |
bc7eab72 | 1177 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1178 | etc. */ |
bc7eab72 KH |
1179 | elf_section_data (sec)->relocs = internal_relocs; |
1180 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1181 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1182 | |
bc7eab72 KH |
1183 | /* Get the opcode. */ |
1184 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
5907e628 | 1185 | |
bc7eab72 KH |
1186 | /* We just need to turn off bit 0x20. */ |
1187 | code &= ~0x20; | |
5907e628 | 1188 | |
bc7eab72 | 1189 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); |
5907e628 | 1190 | |
bc7eab72 KH |
1191 | /* Fix the relocation's type. */ |
1192 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
8c17da6e | 1193 | R_H8_DIR16); |
5907e628 | 1194 | |
bc7eab72 KH |
1195 | /* Delete two bytes of data. */ |
1196 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1197 | irel->r_offset + 1, 2)) |
1198 | goto error_return; | |
1199 | ||
bc7eab72 | 1200 | /* That will change things, so, we should relax again. |
5907e628 | 1201 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1202 | *again = TRUE; |
5907e628 JL |
1203 | } |
1204 | break; | |
1205 | } | |
1206 | ||
1207 | default: | |
1208 | break; | |
1209 | } | |
1210 | } | |
1211 | ||
6cdc0ccc AM |
1212 | if (isymbuf != NULL |
1213 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5907e628 | 1214 | { |
6cdc0ccc AM |
1215 | if (! link_info->keep_memory) |
1216 | free (isymbuf); | |
1217 | else | |
1218 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
5907e628 JL |
1219 | } |
1220 | ||
6cdc0ccc AM |
1221 | if (contents != NULL |
1222 | && elf_section_data (sec)->this_hdr.contents != contents) | |
5907e628 JL |
1223 | { |
1224 | if (! link_info->keep_memory) | |
6cdc0ccc | 1225 | free (contents); |
5907e628 JL |
1226 | else |
1227 | { | |
1228 | /* Cache the section contents for elf_link_input_bfd. */ | |
1229 | elf_section_data (sec)->this_hdr.contents = contents; | |
1230 | } | |
9ad5cbcf AM |
1231 | } |
1232 | ||
6cdc0ccc AM |
1233 | if (internal_relocs != NULL |
1234 | && elf_section_data (sec)->relocs != internal_relocs) | |
1235 | free (internal_relocs); | |
5907e628 | 1236 | |
b34976b6 | 1237 | return TRUE; |
5907e628 JL |
1238 | |
1239 | error_return: | |
6cdc0ccc AM |
1240 | if (isymbuf != NULL |
1241 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1242 | free (isymbuf); | |
1243 | if (contents != NULL | |
1244 | && elf_section_data (sec)->this_hdr.contents != contents) | |
1245 | free (contents); | |
1246 | if (internal_relocs != NULL | |
1247 | && elf_section_data (sec)->relocs != internal_relocs) | |
1248 | free (internal_relocs); | |
b34976b6 | 1249 | return FALSE; |
5907e628 JL |
1250 | } |
1251 | ||
1252 | /* Delete some bytes from a section while relaxing. */ | |
1253 | ||
b34976b6 | 1254 | static bfd_boolean |
5907e628 JL |
1255 | elf32_h8_relax_delete_bytes (abfd, sec, addr, count) |
1256 | bfd *abfd; | |
1257 | asection *sec; | |
1258 | bfd_vma addr; | |
1259 | int count; | |
1260 | { | |
1261 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1262 | unsigned int sec_shndx; |
5907e628 JL |
1263 | bfd_byte *contents; |
1264 | Elf_Internal_Rela *irel, *irelend; | |
1265 | Elf_Internal_Rela *irelalign; | |
6cdc0ccc AM |
1266 | Elf_Internal_Sym *isym; |
1267 | Elf_Internal_Sym *isymend; | |
5907e628 | 1268 | bfd_vma toaddr; |
9ad5cbcf AM |
1269 | struct elf_link_hash_entry **sym_hashes; |
1270 | struct elf_link_hash_entry **end_hashes; | |
1271 | unsigned int symcount; | |
5907e628 | 1272 | |
9ad5cbcf | 1273 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1274 | |
1275 | contents = elf_section_data (sec)->this_hdr.contents; | |
1276 | ||
1277 | /* The deletion must stop at the next ALIGN reloc for an aligment | |
1278 | power larger than the number of bytes we are deleting. */ | |
1279 | ||
1280 | irelalign = NULL; | |
1281 | toaddr = sec->_cooked_size; | |
1282 | ||
1283 | irel = elf_section_data (sec)->relocs; | |
1284 | irelend = irel + sec->reloc_count; | |
1285 | ||
1286 | /* Actually delete the bytes. */ | |
dc810e39 AM |
1287 | memmove (contents + addr, contents + addr + count, |
1288 | (size_t) (toaddr - addr - count)); | |
5907e628 JL |
1289 | sec->_cooked_size -= count; |
1290 | ||
1291 | /* Adjust all the relocs. */ | |
1292 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1293 | { | |
1294 | /* Get the new reloc address. */ | |
1295 | if ((irel->r_offset > addr | |
1296 | && irel->r_offset < toaddr)) | |
1297 | irel->r_offset -= count; | |
1298 | } | |
1299 | ||
1300 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
1301 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1302 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1303 | isymend = isym + symtab_hdr->sh_info; | |
1304 | for (; isym < isymend; isym++) | |
5907e628 | 1305 | { |
6cdc0ccc AM |
1306 | if (isym->st_shndx == sec_shndx |
1307 | && isym->st_value > addr | |
1308 | && isym->st_value < toaddr) | |
1309 | isym->st_value -= count; | |
5907e628 JL |
1310 | } |
1311 | ||
1312 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1313 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1314 | - symtab_hdr->sh_info); | |
1315 | sym_hashes = elf_sym_hashes (abfd); | |
1316 | end_hashes = sym_hashes + symcount; | |
1317 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1318 | { |
9ad5cbcf AM |
1319 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1320 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1321 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1322 | && sym_hash->root.u.def.section == sec | |
1323 | && sym_hash->root.u.def.value > addr | |
1324 | && sym_hash->root.u.def.value < toaddr) | |
5907e628 | 1325 | { |
9ad5cbcf | 1326 | sym_hash->root.u.def.value -= count; |
5907e628 JL |
1327 | } |
1328 | } | |
1329 | ||
b34976b6 | 1330 | return TRUE; |
5907e628 JL |
1331 | } |
1332 | ||
b34976b6 AM |
1333 | /* Return TRUE if a symbol exists at the given address, else return |
1334 | FALSE. */ | |
1335 | static bfd_boolean | |
9ad5cbcf | 1336 | elf32_h8_symbol_address_p (abfd, sec, addr) |
5907e628 JL |
1337 | bfd *abfd; |
1338 | asection *sec; | |
5907e628 JL |
1339 | bfd_vma addr; |
1340 | { | |
1341 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1342 | unsigned int sec_shndx; |
6cdc0ccc AM |
1343 | Elf_Internal_Sym *isym; |
1344 | Elf_Internal_Sym *isymend; | |
9ad5cbcf AM |
1345 | struct elf_link_hash_entry **sym_hashes; |
1346 | struct elf_link_hash_entry **end_hashes; | |
1347 | unsigned int symcount; | |
5907e628 | 1348 | |
9ad5cbcf | 1349 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1350 | |
1351 | /* Examine all the symbols. */ | |
9ad5cbcf | 1352 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
6cdc0ccc AM |
1353 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; |
1354 | isymend = isym + symtab_hdr->sh_info; | |
1355 | for (; isym < isymend; isym++) | |
5907e628 | 1356 | { |
6cdc0ccc AM |
1357 | if (isym->st_shndx == sec_shndx |
1358 | && isym->st_value == addr) | |
b34976b6 | 1359 | return TRUE; |
5907e628 JL |
1360 | } |
1361 | ||
9ad5cbcf AM |
1362 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1363 | - symtab_hdr->sh_info); | |
1364 | sym_hashes = elf_sym_hashes (abfd); | |
1365 | end_hashes = sym_hashes + symcount; | |
1366 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1367 | { |
9ad5cbcf AM |
1368 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1369 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1370 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1371 | && sym_hash->root.u.def.section == sec | |
1372 | && sym_hash->root.u.def.value == addr) | |
b34976b6 | 1373 | return TRUE; |
5907e628 | 1374 | } |
9ad5cbcf | 1375 | |
b34976b6 | 1376 | return FALSE; |
5907e628 JL |
1377 | } |
1378 | ||
1379 | /* This is a version of bfd_generic_get_relocated_section_contents | |
1380 | which uses elf32_h8_relocate_section. */ | |
1381 | ||
1382 | static bfd_byte * | |
1383 | elf32_h8_get_relocated_section_contents (output_bfd, link_info, link_order, | |
1049f94e | 1384 | data, relocatable, symbols) |
5907e628 JL |
1385 | bfd *output_bfd; |
1386 | struct bfd_link_info *link_info; | |
1387 | struct bfd_link_order *link_order; | |
1388 | bfd_byte *data; | |
1049f94e | 1389 | bfd_boolean relocatable; |
5907e628 JL |
1390 | asymbol **symbols; |
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, | |
dc810e39 | 1411 | (size_t) input_section->_raw_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 | |
1509 | elflink.h:bfd_elf32_size_dynamic_sections uses | |
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 |
5e47149d | 1517 | |
5907e628 JL |
1518 | /* And relaxing stuff. */ |
1519 | #define bfd_elf32_bfd_relax_section elf32_h8_relax_section | |
1520 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
1521 | elf32_h8_get_relocated_section_contents | |
1522 | ||
1523 | ||
e01b0e69 | 1524 | #include "elf32-target.h" |