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Commit | Line | Data |
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c2dcd04e | 1 | /* BFD back-end for Renesas H8/300 ELF binaries. |
2627de83 | 2 | Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2003, 2004 |
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 | |
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 *); |
dc810e39 | 33 | static unsigned long elf32_h8_mach |
c6baf75e | 34 | (flagword); |
dc810e39 | 35 | static void elf32_h8_final_write_processing |
c6baf75e | 36 | (bfd *, bfd_boolean); |
b34976b6 | 37 | static bfd_boolean elf32_h8_object_p |
c6baf75e | 38 | (bfd *); |
b34976b6 | 39 | static bfd_boolean elf32_h8_merge_private_bfd_data |
c6baf75e | 40 | (bfd *, bfd *); |
b34976b6 | 41 | static bfd_boolean elf32_h8_relax_section |
c6baf75e | 42 | (bfd *, asection *, struct bfd_link_info *, bfd_boolean *); |
b34976b6 | 43 | static bfd_boolean elf32_h8_relax_delete_bytes |
c6baf75e | 44 | (bfd *, asection *, bfd_vma, int); |
b34976b6 | 45 | static bfd_boolean elf32_h8_symbol_address_p |
c6baf75e | 46 | (bfd *, asection *, bfd_vma); |
dc810e39 | 47 | static bfd_byte *elf32_h8_get_relocated_section_contents |
c6baf75e RS |
48 | (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
49 | bfd_byte *, bfd_boolean, asymbol **); | |
2627de83 AM |
50 | static asection * elf32_h8_gc_mark_hook |
51 | (asection *, struct bfd_link_info *, Elf_Internal_Rela *, | |
52 | struct elf_link_hash_entry *, Elf_Internal_Sym *); | |
53 | static bfd_boolean elf32_h8_gc_sweep_hook | |
54 | (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *); | |
5e47149d | 55 | static bfd_reloc_status_type elf32_h8_final_link_relocate |
c6baf75e RS |
56 | (unsigned long, bfd *, bfd *, asection *, |
57 | bfd_byte *, bfd_vma, bfd_vma, bfd_vma, | |
58 | struct bfd_link_info *, asection *, int); | |
b34976b6 | 59 | static bfd_boolean elf32_h8_relocate_section |
c6baf75e RS |
60 | (bfd *, struct bfd_link_info *, bfd *, asection *, |
61 | bfd_byte *, Elf_Internal_Rela *, | |
62 | Elf_Internal_Sym *, asection **); | |
dc810e39 | 63 | static bfd_reloc_status_type special |
c6baf75e | 64 | (bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **); |
e01b0e69 JR |
65 | |
66 | /* This does not include any relocation information, but should be | |
67 | good enough for GDB or objdump to read the file. */ | |
68 | ||
bc7eab72 | 69 | static reloc_howto_type h8_elf_howto_table[] = { |
e01b0e69 JR |
70 | #define R_H8_NONE_X 0 |
71 | HOWTO (R_H8_NONE, /* type */ | |
72 | 0, /* rightshift */ | |
73 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
74 | 0, /* bitsize */ | |
b34976b6 | 75 | FALSE, /* pc_relative */ |
e01b0e69 | 76 | 0, /* bitpos */ |
9d29900b NC |
77 | complain_overflow_dont,/* complain_on_overflow */ |
78 | special, /* special_function */ | |
e01b0e69 | 79 | "R_H8_NONE", /* name */ |
b34976b6 | 80 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
81 | 0, /* src_mask */ |
82 | 0, /* dst_mask */ | |
b34976b6 | 83 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
84 | #define R_H8_DIR32_X (R_H8_NONE_X + 1) |
85 | HOWTO (R_H8_DIR32, /* type */ | |
86 | 0, /* rightshift */ | |
87 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
88 | 32, /* bitsize */ | |
b34976b6 | 89 | FALSE, /* pc_relative */ |
e01b0e69 | 90 | 0, /* bitpos */ |
9d29900b NC |
91 | complain_overflow_dont,/* complain_on_overflow */ |
92 | special, /* special_function */ | |
e01b0e69 | 93 | "R_H8_DIR32", /* name */ |
b34976b6 | 94 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
95 | 0, /* src_mask */ |
96 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 97 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
98 | #define R_H8_DIR16_X (R_H8_DIR32_X + 1) |
99 | HOWTO (R_H8_DIR16, /* type */ | |
100 | 0, /* rightshift */ | |
101 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
102 | 16, /* bitsize */ | |
b34976b6 | 103 | FALSE, /* pc_relative */ |
e01b0e69 | 104 | 0, /* bitpos */ |
9d29900b NC |
105 | complain_overflow_dont,/* complain_on_overflow */ |
106 | special, /* special_function */ | |
e01b0e69 | 107 | "R_H8_DIR16", /* name */ |
b34976b6 | 108 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
109 | 0, /* src_mask */ |
110 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 111 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
112 | #define R_H8_DIR8_X (R_H8_DIR16_X + 1) |
113 | HOWTO (R_H8_DIR8, /* type */ | |
114 | 0, /* rightshift */ | |
115 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
116 | 8, /* bitsize */ | |
b34976b6 | 117 | FALSE, /* pc_relative */ |
e01b0e69 | 118 | 0, /* bitpos */ |
9d29900b NC |
119 | complain_overflow_dont,/* complain_on_overflow */ |
120 | special, /* special_function */ | |
121 | "R_H8_DIR8", /* name */ | |
b34976b6 | 122 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
123 | 0, /* src_mask */ |
124 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 125 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
126 | #define R_H8_DIR16A8_X (R_H8_DIR8_X + 1) |
127 | HOWTO (R_H8_DIR16A8, /* type */ | |
128 | 0, /* rightshift */ | |
129 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
130 | 16, /* bitsize */ | |
b34976b6 | 131 | FALSE, /* pc_relative */ |
e01b0e69 JR |
132 | 0, /* bitpos */ |
133 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 134 | special, /* special_function */ |
e01b0e69 | 135 | "R_H8_DIR16A8", /* name */ |
b34976b6 | 136 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
137 | 0, /* src_mask */ |
138 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 139 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
140 | #define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1) |
141 | HOWTO (R_H8_DIR16R8, /* type */ | |
142 | 0, /* rightshift */ | |
143 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
144 | 16, /* bitsize */ | |
b34976b6 | 145 | FALSE, /* pc_relative */ |
e01b0e69 JR |
146 | 0, /* bitpos */ |
147 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 148 | special, /* special_function */ |
e01b0e69 | 149 | "R_H8_DIR16R8", /* name */ |
b34976b6 | 150 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
151 | 0, /* src_mask */ |
152 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 153 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
154 | #define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1) |
155 | HOWTO (R_H8_DIR24A8, /* type */ | |
156 | 0, /* rightshift */ | |
157 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
158 | 24, /* bitsize */ | |
b34976b6 | 159 | FALSE, /* pc_relative */ |
e01b0e69 JR |
160 | 0, /* bitpos */ |
161 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 162 | special, /* special_function */ |
e01b0e69 | 163 | "R_H8_DIR24A8", /* name */ |
b34976b6 | 164 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
165 | 0xff000000, /* src_mask */ |
166 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 167 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
168 | #define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1) |
169 | HOWTO (R_H8_DIR24R8, /* type */ | |
170 | 0, /* rightshift */ | |
171 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
172 | 24, /* bitsize */ | |
b34976b6 | 173 | FALSE, /* pc_relative */ |
e01b0e69 JR |
174 | 0, /* bitpos */ |
175 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 176 | special, /* special_function */ |
e01b0e69 | 177 | "R_H8_DIR24R8", /* name */ |
b34976b6 | 178 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
179 | 0xff000000, /* src_mask */ |
180 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 181 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
182 | #define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1) |
183 | HOWTO (R_H8_DIR32A16, /* type */ | |
184 | 0, /* rightshift */ | |
185 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
186 | 32, /* bitsize */ | |
b34976b6 | 187 | FALSE, /* pc_relative */ |
e01b0e69 | 188 | 0, /* bitpos */ |
9d29900b NC |
189 | complain_overflow_dont,/* complain_on_overflow */ |
190 | special, /* special_function */ | |
8c17da6e | 191 | "R_H8_DIR32A16", /* name */ |
b34976b6 | 192 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
193 | 0, /* src_mask */ |
194 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 195 | FALSE), /* pcrel_offset */ |
f2352488 JL |
196 | #define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1) |
197 | HOWTO (R_H8_PCREL16, /* type */ | |
198 | 0, /* rightshift */ | |
199 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
200 | 16, /* bitsize */ | |
b34976b6 | 201 | TRUE, /* pc_relative */ |
f2352488 | 202 | 0, /* bitpos */ |
9d29900b NC |
203 | complain_overflow_signed,/* complain_on_overflow */ |
204 | special, /* special_function */ | |
f2352488 | 205 | "R_H8_PCREL16", /* name */ |
b34976b6 | 206 | FALSE, /* partial_inplace */ |
f2352488 JL |
207 | 0xffff, /* src_mask */ |
208 | 0xffff, /* dst_mask */ | |
b34976b6 | 209 | TRUE), /* pcrel_offset */ |
f2352488 JL |
210 | #define R_H8_PCREL8_X (R_H8_PCREL16_X + 1) |
211 | HOWTO (R_H8_PCREL8, /* type */ | |
212 | 0, /* rightshift */ | |
213 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
214 | 8, /* bitsize */ | |
b34976b6 | 215 | TRUE, /* pc_relative */ |
f2352488 | 216 | 0, /* bitpos */ |
9d29900b NC |
217 | complain_overflow_signed,/* complain_on_overflow */ |
218 | special, /* special_function */ | |
f2352488 | 219 | "R_H8_PCREL8", /* name */ |
b34976b6 | 220 | FALSE, /* partial_inplace */ |
f2352488 JL |
221 | 0xff, /* src_mask */ |
222 | 0xff, /* dst_mask */ | |
b34976b6 | 223 | TRUE), /* pcrel_offset */ |
e01b0e69 JR |
224 | }; |
225 | ||
226 | /* This structure is used to map BFD reloc codes to H8 ELF relocs. */ | |
227 | ||
bc7eab72 | 228 | struct elf_reloc_map { |
e01b0e69 JR |
229 | bfd_reloc_code_real_type bfd_reloc_val; |
230 | unsigned char howto_index; | |
231 | }; | |
232 | ||
6288878d | 233 | /* An array mapping BFD reloc codes to H8 ELF relocs. */ |
e01b0e69 | 234 | |
bc7eab72 | 235 | static const struct elf_reloc_map h8_reloc_map[] = { |
e01b0e69 JR |
236 | { BFD_RELOC_NONE, R_H8_NONE_X }, |
237 | { BFD_RELOC_32, R_H8_DIR32_X }, | |
238 | { BFD_RELOC_16, R_H8_DIR16_X }, | |
239 | { BFD_RELOC_8, R_H8_DIR8_X }, | |
240 | { BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X }, | |
241 | { BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X }, | |
242 | { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, | |
243 | { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, | |
244 | { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, | |
f2352488 JL |
245 | { BFD_RELOC_16_PCREL, R_H8_PCREL16_X }, |
246 | { BFD_RELOC_8_PCREL, R_H8_PCREL8_X }, | |
e01b0e69 JR |
247 | }; |
248 | ||
0a83638b | 249 | |
e01b0e69 | 250 | static reloc_howto_type * |
c6baf75e RS |
251 | elf32_h8_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
252 | bfd_reloc_code_real_type code) | |
e01b0e69 JR |
253 | { |
254 | unsigned int i; | |
255 | ||
256 | for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
257 | { | |
258 | if (h8_reloc_map[i].bfd_reloc_val == code) | |
259 | return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index]; | |
260 | } | |
261 | return NULL; | |
262 | } | |
263 | ||
264 | static void | |
c6baf75e RS |
265 | elf32_h8_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, |
266 | Elf_Internal_Rela *elf_reloc) | |
e01b0e69 JR |
267 | { |
268 | unsigned int r; | |
269 | unsigned int i; | |
270 | ||
271 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
272 | for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++) | |
bc7eab72 | 273 | if (h8_elf_howto_table[i].type == r) |
e01b0e69 JR |
274 | { |
275 | bfd_reloc->howto = &h8_elf_howto_table[i]; | |
276 | return; | |
277 | } | |
278 | abort (); | |
279 | } | |
280 | ||
281 | static void | |
c6baf75e RS |
282 | elf32_h8_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, |
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 | |
c6baf75e RS |
297 | special (bfd *abfd ATTRIBUTE_UNUSED, |
298 | arelent *reloc_entry ATTRIBUTE_UNUSED, | |
299 | asymbol *symbol ATTRIBUTE_UNUSED, | |
300 | PTR data ATTRIBUTE_UNUSED, | |
301 | asection *input_section ATTRIBUTE_UNUSED, | |
302 | bfd *output_bfd, | |
303 | char **error_message ATTRIBUTE_UNUSED) | |
a00c9dbc JL |
304 | { |
305 | if (output_bfd == (bfd *) NULL) | |
306 | return bfd_reloc_continue; | |
307 | ||
308 | /* Adjust the reloc address to that in the output section. */ | |
309 | reloc_entry->address += input_section->output_offset; | |
310 | return bfd_reloc_ok; | |
311 | } | |
5e47149d JL |
312 | |
313 | /* Perform a relocation as part of a final link. */ | |
314 | static bfd_reloc_status_type | |
c6baf75e RS |
315 | elf32_h8_final_link_relocate (unsigned long r_type, bfd *input_bfd, |
316 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
317 | asection *input_section ATTRIBUTE_UNUSED, | |
318 | bfd_byte *contents, bfd_vma offset, | |
319 | bfd_vma value, bfd_vma addend, | |
320 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
321 | asection *sym_sec ATTRIBUTE_UNUSED, | |
322 | int is_local ATTRIBUTE_UNUSED) | |
5e47149d JL |
323 | { |
324 | bfd_byte *hit_data = contents + offset; | |
325 | ||
326 | switch (r_type) | |
327 | { | |
5e47149d JL |
328 | case R_H8_NONE: |
329 | return bfd_reloc_ok; | |
330 | ||
331 | case R_H8_DIR32: | |
332 | case R_H8_DIR32A16: | |
a00c9dbc | 333 | case R_H8_DIR24A8: |
5e47149d JL |
334 | value += addend; |
335 | bfd_put_32 (input_bfd, value, hit_data); | |
336 | return bfd_reloc_ok; | |
337 | ||
338 | case R_H8_DIR16: | |
339 | case R_H8_DIR16A8: | |
340 | case R_H8_DIR16R8: | |
341 | value += addend; | |
342 | bfd_put_16 (input_bfd, value, hit_data); | |
343 | return bfd_reloc_ok; | |
344 | ||
345 | /* AKA R_RELBYTE */ | |
346 | case R_H8_DIR8: | |
347 | value += addend; | |
348 | ||
5e47149d JL |
349 | bfd_put_8 (input_bfd, value, hit_data); |
350 | return bfd_reloc_ok; | |
351 | ||
5e47149d JL |
352 | case R_H8_DIR24R8: |
353 | value += addend; | |
354 | ||
a00c9dbc JL |
355 | /* HIT_DATA is the address for the first byte for the relocated |
356 | value. Subtract 1 so that we can manipulate the data in 32bit | |
357 | hunks. */ | |
358 | hit_data--; | |
359 | ||
360 | /* Clear out the top byte in value. */ | |
5e47149d | 361 | value &= 0xffffff; |
a00c9dbc JL |
362 | |
363 | /* Retrieve the type byte for value from the section contents. */ | |
5e47149d | 364 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000); |
a00c9dbc JL |
365 | |
366 | /* Now scribble it out in one 32bit hunk. */ | |
5e47149d JL |
367 | bfd_put_32 (input_bfd, value, hit_data); |
368 | return bfd_reloc_ok; | |
369 | ||
f2352488 JL |
370 | case R_H8_PCREL16: |
371 | value -= (input_section->output_section->vma | |
372 | + input_section->output_offset); | |
373 | value -= offset; | |
374 | value += addend; | |
375 | ||
a00c9dbc JL |
376 | /* The value is relative to the start of the instruction, |
377 | not the relocation offset. Subtract 2 to account for | |
378 | this minor issue. */ | |
379 | value -= 2; | |
380 | ||
f2352488 JL |
381 | bfd_put_16 (input_bfd, value, hit_data); |
382 | return bfd_reloc_ok; | |
383 | ||
384 | case R_H8_PCREL8: | |
385 | value -= (input_section->output_section->vma | |
386 | + input_section->output_offset); | |
387 | value -= offset; | |
388 | value += addend; | |
389 | ||
a00c9dbc JL |
390 | /* The value is relative to the start of the instruction, |
391 | not the relocation offset. Subtract 1 to account for | |
392 | this minor issue. */ | |
393 | value -= 1; | |
394 | ||
f2352488 JL |
395 | bfd_put_8 (input_bfd, value, hit_data); |
396 | return bfd_reloc_ok; | |
397 | ||
5e47149d JL |
398 | default: |
399 | return bfd_reloc_notsupported; | |
400 | } | |
401 | } | |
402 | \f | |
403 | /* Relocate an H8 ELF section. */ | |
b34976b6 | 404 | static bfd_boolean |
c6baf75e RS |
405 | elf32_h8_relocate_section (bfd *output_bfd, struct bfd_link_info *info, |
406 | bfd *input_bfd, asection *input_section, | |
407 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
408 | Elf_Internal_Sym *local_syms, | |
409 | asection **local_sections) | |
5e47149d JL |
410 | { |
411 | Elf_Internal_Shdr *symtab_hdr; | |
412 | struct elf_link_hash_entry **sym_hashes; | |
413 | Elf_Internal_Rela *rel, *relend; | |
414 | ||
1049f94e | 415 | if (info->relocatable) |
b34976b6 | 416 | return TRUE; |
f0fe0e16 | 417 | |
5e47149d JL |
418 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
419 | sym_hashes = elf_sym_hashes (input_bfd); | |
420 | ||
421 | rel = relocs; | |
422 | relend = relocs + input_section->reloc_count; | |
423 | for (; rel < relend; rel++) | |
424 | { | |
dc810e39 | 425 | unsigned int r_type; |
5e47149d JL |
426 | unsigned long r_symndx; |
427 | Elf_Internal_Sym *sym; | |
428 | asection *sec; | |
429 | struct elf_link_hash_entry *h; | |
430 | bfd_vma relocation; | |
431 | bfd_reloc_status_type r; | |
432 | ||
f0fe0e16 | 433 | /* This is a final link. */ |
5e47149d JL |
434 | r_symndx = ELF32_R_SYM (rel->r_info); |
435 | r_type = ELF32_R_TYPE (rel->r_info); | |
5e47149d JL |
436 | h = NULL; |
437 | sym = NULL; | |
438 | sec = NULL; | |
439 | if (r_symndx < symtab_hdr->sh_info) | |
440 | { | |
441 | sym = local_syms + r_symndx; | |
442 | sec = local_sections[r_symndx]; | |
8517fae7 | 443 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
5e47149d JL |
444 | } |
445 | else | |
446 | { | |
447 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
448 | while (h->root.type == bfd_link_hash_indirect | |
449 | || h->root.type == bfd_link_hash_warning) | |
450 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
451 | if (h->root.type == bfd_link_hash_defined | |
452 | || h->root.type == bfd_link_hash_defweak) | |
453 | { | |
454 | sec = h->root.u.def.section; | |
455 | relocation = (h->root.u.def.value | |
456 | + sec->output_section->vma | |
457 | + sec->output_offset); | |
458 | } | |
459 | else if (h->root.type == bfd_link_hash_undefweak) | |
460 | relocation = 0; | |
461 | else | |
462 | { | |
463 | if (! ((*info->callbacks->undefined_symbol) | |
464 | (info, h->root.root.string, input_bfd, | |
b34976b6 AM |
465 | input_section, rel->r_offset, TRUE))) |
466 | return FALSE; | |
5e47149d JL |
467 | relocation = 0; |
468 | } | |
469 | } | |
470 | ||
471 | r = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, | |
472 | input_section, | |
473 | contents, rel->r_offset, | |
474 | relocation, rel->r_addend, | |
475 | info, sec, h == NULL); | |
476 | ||
477 | if (r != bfd_reloc_ok) | |
478 | { | |
479 | const char *name; | |
480 | const char *msg = (const char *) 0; | |
481 | arelent bfd_reloc; | |
482 | reloc_howto_type *howto; | |
483 | ||
484 | elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel); | |
485 | howto = bfd_reloc.howto; | |
dc810e39 | 486 | |
5e47149d JL |
487 | if (h != NULL) |
488 | name = h->root.root.string; | |
489 | else | |
490 | { | |
491 | name = (bfd_elf_string_from_elf_section | |
492 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
493 | if (name == NULL || *name == '\0') | |
494 | name = bfd_section_name (input_bfd, sec); | |
495 | } | |
496 | ||
497 | switch (r) | |
498 | { | |
499 | case bfd_reloc_overflow: | |
500 | if (! ((*info->callbacks->reloc_overflow) | |
501 | (info, name, howto->name, (bfd_vma) 0, | |
502 | input_bfd, input_section, rel->r_offset))) | |
b34976b6 | 503 | return FALSE; |
5e47149d JL |
504 | break; |
505 | ||
506 | case bfd_reloc_undefined: | |
507 | if (! ((*info->callbacks->undefined_symbol) | |
508 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
509 | rel->r_offset, TRUE))) |
510 | return FALSE; | |
5e47149d JL |
511 | break; |
512 | ||
513 | case bfd_reloc_outofrange: | |
514 | msg = _("internal error: out of range error"); | |
515 | goto common_error; | |
516 | ||
517 | case bfd_reloc_notsupported: | |
518 | msg = _("internal error: unsupported relocation error"); | |
519 | goto common_error; | |
520 | ||
521 | case bfd_reloc_dangerous: | |
522 | msg = _("internal error: dangerous error"); | |
523 | goto common_error; | |
524 | ||
525 | default: | |
526 | msg = _("internal error: unknown error"); | |
527 | /* fall through */ | |
528 | ||
529 | common_error: | |
530 | if (!((*info->callbacks->warning) | |
531 | (info, msg, name, input_bfd, input_section, | |
532 | rel->r_offset))) | |
b34976b6 | 533 | return FALSE; |
5e47149d JL |
534 | break; |
535 | } | |
536 | } | |
537 | } | |
538 | ||
b34976b6 | 539 | return TRUE; |
5e47149d JL |
540 | } |
541 | ||
0a83638b JL |
542 | /* Object files encode the specific H8 model they were compiled |
543 | for in the ELF flags field. | |
544 | ||
545 | Examine that field and return the proper BFD machine type for | |
546 | the object file. */ | |
dc810e39 | 547 | static unsigned long |
c6baf75e | 548 | elf32_h8_mach (flagword flags) |
0a83638b JL |
549 | { |
550 | switch (flags & EF_H8_MACH) | |
551 | { | |
552 | case E_H8_MACH_H8300: | |
553 | default: | |
554 | return bfd_mach_h8300; | |
555 | ||
556 | case E_H8_MACH_H8300H: | |
557 | return bfd_mach_h8300h; | |
558 | ||
559 | case E_H8_MACH_H8300S: | |
560 | return bfd_mach_h8300s; | |
8d9cd6b1 NC |
561 | |
562 | case E_H8_MACH_H8300HN: | |
563 | return bfd_mach_h8300hn; | |
564 | ||
565 | case E_H8_MACH_H8300SN: | |
566 | return bfd_mach_h8300sn; | |
5d1db417 MS |
567 | |
568 | case E_H8_MACH_H8300SX: | |
569 | return bfd_mach_h8300sx; | |
f4984206 RS |
570 | |
571 | case E_H8_MACH_H8300SXN: | |
572 | return bfd_mach_h8300sxn; | |
0a83638b JL |
573 | } |
574 | } | |
575 | ||
576 | /* The final processing done just before writing out a H8 ELF object | |
577 | file. We use this opportunity to encode the BFD machine type | |
578 | into the flags field in the object file. */ | |
579 | ||
dc810e39 | 580 | static void |
c6baf75e RS |
581 | elf32_h8_final_write_processing (bfd *abfd, |
582 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
0a83638b JL |
583 | { |
584 | unsigned long val; | |
585 | ||
586 | switch (bfd_get_mach (abfd)) | |
587 | { | |
588 | default: | |
589 | case bfd_mach_h8300: | |
590 | val = E_H8_MACH_H8300; | |
591 | break; | |
592 | ||
593 | case bfd_mach_h8300h: | |
594 | val = E_H8_MACH_H8300H; | |
595 | break; | |
596 | ||
597 | case bfd_mach_h8300s: | |
598 | val = E_H8_MACH_H8300S; | |
599 | break; | |
8d9cd6b1 NC |
600 | |
601 | case bfd_mach_h8300hn: | |
602 | val = E_H8_MACH_H8300HN; | |
603 | break; | |
604 | ||
605 | case bfd_mach_h8300sn: | |
606 | val = E_H8_MACH_H8300SN; | |
607 | break; | |
5d1db417 MS |
608 | |
609 | case bfd_mach_h8300sx: | |
610 | val = E_H8_MACH_H8300SX; | |
611 | break; | |
f4984206 RS |
612 | |
613 | case bfd_mach_h8300sxn: | |
614 | val = E_H8_MACH_H8300SXN; | |
615 | break; | |
0a83638b JL |
616 | } |
617 | ||
618 | elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH); | |
619 | elf_elfheader (abfd)->e_flags |= val; | |
620 | } | |
621 | ||
622 | /* Return nonzero if ABFD represents a valid H8 ELF object file; also | |
623 | record the encoded machine type found in the ELF flags. */ | |
624 | ||
b34976b6 | 625 | static bfd_boolean |
c6baf75e | 626 | elf32_h8_object_p (bfd *abfd) |
0a83638b JL |
627 | { |
628 | bfd_default_set_arch_mach (abfd, bfd_arch_h8300, | |
629 | elf32_h8_mach (elf_elfheader (abfd)->e_flags)); | |
b34976b6 | 630 | return TRUE; |
0a83638b JL |
631 | } |
632 | ||
633 | /* Merge backend specific data from an object file to the output | |
634 | object file when linking. The only data we need to copy at this | |
635 | time is the architecture/machine information. */ | |
636 | ||
b34976b6 | 637 | static bfd_boolean |
c6baf75e | 638 | elf32_h8_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
0a83638b JL |
639 | { |
640 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
641 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 642 | return TRUE; |
0a83638b JL |
643 | |
644 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
645 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
646 | { | |
647 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
648 | bfd_get_mach (ibfd))) | |
b34976b6 | 649 | return FALSE; |
0a83638b JL |
650 | } |
651 | ||
b34976b6 | 652 | return TRUE; |
0a83638b JL |
653 | } |
654 | ||
5907e628 JL |
655 | /* This function handles relaxing for the H8.. |
656 | ||
4cc11e76 | 657 | There are a few relaxing opportunities available on the H8: |
5907e628 JL |
658 | |
659 | jmp/jsr:24 -> bra/bsr:8 2 bytes | |
660 | The jmp may be completely eliminated if the previous insn is a | |
661 | conditional branch to the insn after the jump. In that case | |
662 | we invert the branch and delete the jump and save 4 bytes. | |
663 | ||
664 | bCC:16 -> bCC:8 2 bytes | |
665 | bsr:16 -> bsr:8 2 bytes | |
666 | ||
667 | mov.b:16 -> mov.b:8 2 bytes | |
668 | mov.b:24/32 -> mov.b:8 4 bytes | |
669 | ||
76f99c63 | 670 | mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes */ |
5907e628 | 671 | |
b34976b6 | 672 | static bfd_boolean |
c6baf75e RS |
673 | elf32_h8_relax_section (bfd *abfd, asection *sec, |
674 | struct bfd_link_info *link_info, bfd_boolean *again) | |
5907e628 JL |
675 | { |
676 | Elf_Internal_Shdr *symtab_hdr; | |
677 | Elf_Internal_Rela *internal_relocs; | |
5907e628 JL |
678 | Elf_Internal_Rela *irel, *irelend; |
679 | bfd_byte *contents = NULL; | |
6cdc0ccc | 680 | Elf_Internal_Sym *isymbuf = NULL; |
5907e628 JL |
681 | static asection *last_input_section = NULL; |
682 | static Elf_Internal_Rela *last_reloc = NULL; | |
683 | ||
684 | /* Assume nothing changes. */ | |
b34976b6 | 685 | *again = FALSE; |
5907e628 | 686 | |
1049f94e | 687 | /* We don't have to do anything for a relocatable link, if |
5907e628 JL |
688 | this section does not have relocs, or if this is not a |
689 | code section. */ | |
1049f94e | 690 | if (link_info->relocatable |
5907e628 JL |
691 | || (sec->flags & SEC_RELOC) == 0 |
692 | || sec->reloc_count == 0 | |
693 | || (sec->flags & SEC_CODE) == 0) | |
b34976b6 | 694 | return TRUE; |
5907e628 JL |
695 | |
696 | /* If this is the first time we have been called for this section, | |
697 | initialize the cooked size. */ | |
698 | if (sec->_cooked_size == 0) | |
699 | sec->_cooked_size = sec->_raw_size; | |
700 | ||
701 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
702 | ||
703 | /* Get a copy of the native relocations. */ | |
45d6a902 | 704 | internal_relocs = (_bfd_elf_link_read_relocs |
5907e628 JL |
705 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
706 | link_info->keep_memory)); | |
707 | if (internal_relocs == NULL) | |
708 | goto error_return; | |
5907e628 JL |
709 | |
710 | if (sec != last_input_section) | |
711 | last_reloc = NULL; | |
712 | ||
713 | last_input_section = sec; | |
714 | ||
715 | /* Walk through the relocs looking for relaxing opportunities. */ | |
716 | irelend = internal_relocs + sec->reloc_count; | |
717 | for (irel = internal_relocs; irel < irelend; irel++) | |
718 | { | |
719 | bfd_vma symval; | |
720 | ||
721 | /* Keep track of the previous reloc so that we can delete | |
722 | some long jumps created by the compiler. */ | |
723 | if (irel != internal_relocs) | |
724 | last_reloc = irel - 1; | |
725 | ||
76f99c63 JL |
726 | if (ELF32_R_TYPE (irel->r_info) != R_H8_DIR24R8 |
727 | && ELF32_R_TYPE (irel->r_info) != R_H8_PCREL16 | |
728 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR16A8 | |
729 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR24A8 | |
730 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR32A16) | |
731 | continue; | |
732 | ||
5907e628 JL |
733 | /* Get the section contents if we haven't done so already. */ |
734 | if (contents == NULL) | |
735 | { | |
736 | /* Get cached copy if it exists. */ | |
737 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
738 | contents = elf_section_data (sec)->this_hdr.contents; | |
739 | else | |
740 | { | |
741 | /* Go get them off disk. */ | |
742 | contents = (bfd_byte *) bfd_malloc (sec->_raw_size); | |
743 | if (contents == NULL) | |
744 | goto error_return; | |
5907e628 JL |
745 | |
746 | if (! bfd_get_section_contents (abfd, sec, contents, | |
747 | (file_ptr) 0, sec->_raw_size)) | |
748 | goto error_return; | |
749 | } | |
750 | } | |
751 | ||
9ad5cbcf | 752 | /* Read this BFD's local symbols if we haven't done so already. */ |
6cdc0ccc | 753 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
5907e628 | 754 | { |
6cdc0ccc AM |
755 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
756 | if (isymbuf == NULL) | |
757 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
758 | symtab_hdr->sh_info, 0, | |
759 | NULL, NULL, NULL); | |
760 | if (isymbuf == NULL) | |
761 | goto error_return; | |
5907e628 JL |
762 | } |
763 | ||
764 | /* Get the value of the symbol referred to by the reloc. */ | |
765 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
766 | { | |
5907e628 | 767 | /* A local symbol. */ |
6cdc0ccc AM |
768 | Elf_Internal_Sym *isym; |
769 | asection *sym_sec; | |
5907e628 | 770 | |
32ac2c9a | 771 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
6cdc0ccc | 772 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
03d14457 NC |
773 | symval = isym->st_value; |
774 | /* If the reloc is absolute, it will not have | |
775 | a symbol or section associated with it. */ | |
776 | if (sym_sec) | |
777 | symval += sym_sec->output_section->vma | |
778 | + sym_sec->output_offset; | |
5907e628 JL |
779 | } |
780 | else | |
781 | { | |
782 | unsigned long indx; | |
783 | struct elf_link_hash_entry *h; | |
784 | ||
785 | /* An external symbol. */ | |
786 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
787 | h = elf_sym_hashes (abfd)[indx]; | |
788 | BFD_ASSERT (h != NULL); | |
789 | if (h->root.type != bfd_link_hash_defined | |
790 | && h->root.type != bfd_link_hash_defweak) | |
791 | { | |
792 | /* This appears to be a reference to an undefined | |
793 | symbol. Just ignore it--it will be caught by the | |
794 | regular reloc processing. */ | |
795 | continue; | |
796 | } | |
797 | ||
798 | symval = (h->root.u.def.value | |
799 | + h->root.u.def.section->output_section->vma | |
800 | + h->root.u.def.section->output_offset); | |
801 | } | |
802 | ||
803 | /* For simplicity of coding, we are going to modify the section | |
804 | contents, the section relocs, and the BFD symbol table. We | |
805 | must tell the rest of the code not to free up this | |
806 | information. It would be possible to instead create a table | |
807 | of changes which have to be made, as is done in coff-mips.c; | |
808 | that would be more work, but would require less memory when | |
809 | the linker is run. */ | |
810 | switch (ELF32_R_TYPE (irel->r_info)) | |
811 | { | |
812 | /* Try to turn a 24 bit absolute branch/call into an 8 bit | |
813 | pc-relative branch/call. */ | |
814 | case R_H8_DIR24R8: | |
815 | { | |
816 | bfd_vma value = symval + irel->r_addend; | |
817 | bfd_vma dot, gap; | |
818 | ||
819 | /* Get the address of this instruction. */ | |
820 | dot = (sec->output_section->vma | |
821 | + sec->output_offset + irel->r_offset - 1); | |
822 | ||
823 | /* Compute the distance from this insn to the branch target. */ | |
824 | gap = value - dot; | |
825 | ||
826 | /* If the distance is within -126..+130 inclusive, then we can | |
827 | relax this jump. +130 is valid since the target will move | |
828 | two bytes closer if we do relax this branch. */ | |
dc810e39 | 829 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 JL |
830 | { |
831 | unsigned char code; | |
832 | ||
833 | /* Note that we've changed the relocs, section contents, | |
834 | etc. */ | |
835 | elf_section_data (sec)->relocs = internal_relocs; | |
5907e628 | 836 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 837 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 838 | |
e514ac71 NC |
839 | /* Get the instruction code being relaxed. */ |
840 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
841 | ||
5907e628 JL |
842 | /* If the previous instruction conditionally jumped around |
843 | this instruction, we may be able to reverse the condition | |
844 | and redirect the previous instruction to the target of | |
845 | this instruction. | |
846 | ||
847 | Such sequences are used by the compiler to deal with | |
e514ac71 NC |
848 | long conditional branches. |
849 | ||
850 | Only perform this optimisation for jumps (code 0x5a) not | |
851 | subroutine calls, as otherwise it could transform: | |
b34976b6 | 852 | |
e514ac71 NC |
853 | mov.w r0,r0 |
854 | beq .L1 | |
855 | jsr @_bar | |
856 | .L1: rts | |
857 | _bar: rts | |
858 | into: | |
859 | mov.w r0,r0 | |
860 | bne _bar | |
861 | rts | |
862 | _bar: rts | |
863 | ||
864 | which changes the call (jsr) into a branch (bne). */ | |
865 | if (code == 0x5a | |
866 | && (int) gap <= 130 | |
dc810e39 | 867 | && (int) gap >= -128 |
5907e628 JL |
868 | && last_reloc |
869 | && ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8 | |
870 | && ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info) | |
871 | { | |
872 | bfd_vma last_value; | |
873 | asection *last_sym_sec; | |
6cdc0ccc | 874 | Elf_Internal_Sym *last_sym; |
5907e628 JL |
875 | |
876 | /* We will need to examine the symbol used by the | |
877 | previous relocation. */ | |
dc810e39 | 878 | |
6cdc0ccc | 879 | last_sym = isymbuf + ELF32_R_SYM (last_reloc->r_info); |
5907e628 | 880 | last_sym_sec |
6cdc0ccc AM |
881 | = bfd_section_from_elf_index (abfd, last_sym->st_shndx); |
882 | last_value = (last_sym->st_value | |
5907e628 JL |
883 | + last_sym_sec->output_section->vma |
884 | + last_sym_sec->output_offset); | |
885 | ||
886 | /* Verify that the previous relocation was for a | |
887 | branch around this instruction and that no symbol | |
888 | exists at the current location. */ | |
889 | if (last_value == dot + 4 | |
890 | && last_reloc->r_offset + 2 == irel->r_offset | |
9ad5cbcf | 891 | && ! elf32_h8_symbol_address_p (abfd, sec, dot)) |
5907e628 JL |
892 | { |
893 | /* We can eliminate this jump. Twiddle the | |
894 | previous relocation as necessary. */ | |
895 | irel->r_info | |
896 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
897 | ELF32_R_TYPE (R_H8_NONE)); | |
898 | ||
bc7eab72 | 899 | last_reloc->r_info |
5907e628 | 900 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
bc7eab72 KH |
901 | ELF32_R_TYPE (R_H8_PCREL8)); |
902 | last_reloc->r_addend = irel->r_addend; | |
5907e628 JL |
903 | |
904 | code = bfd_get_8 (abfd, | |
905 | contents + last_reloc->r_offset - 1); | |
906 | code ^= 1; | |
907 | bfd_put_8 (abfd, | |
908 | code, | |
909 | contents + last_reloc->r_offset - 1); | |
910 | ||
911 | /* Delete four bytes of data. */ | |
912 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
913 | irel->r_offset - 1, | |
914 | 4)) | |
915 | goto error_return; | |
916 | ||
b34976b6 | 917 | *again = TRUE; |
5907e628 JL |
918 | break; |
919 | } | |
920 | } | |
921 | ||
5907e628 JL |
922 | if (code == 0x5e) |
923 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 1); | |
924 | else if (code == 0x5a) | |
925 | bfd_put_8 (abfd, 0x40, contents + irel->r_offset - 1); | |
926 | else | |
927 | abort (); | |
928 | ||
929 | /* Fix the relocation's type. */ | |
930 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
931 | R_H8_PCREL8); | |
932 | ||
933 | /* Delete two bytes of data. */ | |
934 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
935 | irel->r_offset + 1, 2)) | |
936 | goto error_return; | |
937 | ||
938 | /* That will change things, so, we should relax again. | |
939 | Note that this is not required, and it may be slow. */ | |
b34976b6 | 940 | *again = TRUE; |
5907e628 JL |
941 | } |
942 | break; | |
943 | } | |
944 | ||
945 | /* Try to turn a 16bit pc-relative branch into a 8bit pc-relative | |
946 | branch. */ | |
947 | case R_H8_PCREL16: | |
948 | { | |
949 | bfd_vma value = symval + irel->r_addend; | |
950 | bfd_vma dot; | |
951 | bfd_vma gap; | |
952 | ||
953 | /* Get the address of this instruction. */ | |
954 | dot = (sec->output_section->vma | |
955 | + sec->output_offset | |
956 | + irel->r_offset - 2); | |
dc810e39 | 957 | |
5907e628 JL |
958 | gap = value - dot; |
959 | ||
960 | /* If the distance is within -126..+130 inclusive, then we can | |
961 | relax this jump. +130 is valid since the target will move | |
962 | two bytes closer if we do relax this branch. */ | |
bc7eab72 | 963 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 | 964 | { |
bc7eab72 | 965 | unsigned char code; |
5907e628 | 966 | |
bc7eab72 | 967 | /* Note that we've changed the relocs, section contents, |
5907e628 | 968 | etc. */ |
bc7eab72 KH |
969 | elf_section_data (sec)->relocs = internal_relocs; |
970 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 971 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 972 | |
bc7eab72 KH |
973 | /* Get the opcode. */ |
974 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 JL |
975 | |
976 | if (code == 0x58) | |
977 | { | |
978 | /* bCC:16 -> bCC:8 */ | |
979 | /* Get the condition code from the original insn. */ | |
980 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
981 | code &= 0xf0; | |
982 | code >>= 4; | |
983 | code |= 0x40; | |
984 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
985 | } | |
986 | else if (code == 0x5c) | |
987 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 2); | |
988 | else | |
989 | abort (); | |
990 | ||
991 | /* Fix the relocation's type. */ | |
bc7eab72 | 992 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
5907e628 | 993 | R_H8_PCREL8); |
bc7eab72 | 994 | irel->r_offset--; |
5907e628 | 995 | |
bc7eab72 KH |
996 | /* Delete two bytes of data. */ |
997 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
998 | irel->r_offset + 1, 2)) |
999 | goto error_return; | |
1000 | ||
bc7eab72 | 1001 | /* That will change things, so, we should relax again. |
5907e628 | 1002 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1003 | *again = TRUE; |
5907e628 JL |
1004 | } |
1005 | break; | |
1006 | } | |
1007 | ||
1008 | /* This is a 16 bit absolute address in a "mov.b" insn, which may | |
1009 | become an 8 bit absolute address if its in the right range. */ | |
1010 | case R_H8_DIR16A8: | |
1011 | { | |
7a9823f1 | 1012 | bfd_vma value; |
5907e628 | 1013 | |
7a9823f1 RS |
1014 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1015 | if (value >= 0xffffff00u) | |
5907e628 | 1016 | { |
bc7eab72 | 1017 | unsigned char code; |
5907e628 | 1018 | |
bc7eab72 | 1019 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1020 | etc. */ |
bc7eab72 KH |
1021 | elf_section_data (sec)->relocs = internal_relocs; |
1022 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1023 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1024 | |
bc7eab72 KH |
1025 | /* Get the opcode. */ |
1026 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1027 | |
bc7eab72 KH |
1028 | /* Sanity check. */ |
1029 | if (code != 0x6a) | |
5907e628 JL |
1030 | abort (); |
1031 | ||
bc7eab72 | 1032 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
5907e628 | 1033 | |
bc7eab72 | 1034 | if ((code & 0xf0) == 0x00) |
5907e628 JL |
1035 | bfd_put_8 (abfd, |
1036 | (code & 0xf) | 0x20, | |
bc7eab72 KH |
1037 | contents + irel->r_offset - 2); |
1038 | else if ((code & 0xf0) == 0x80) | |
5907e628 JL |
1039 | bfd_put_8 (abfd, |
1040 | (code & 0xf) | 0x30, | |
bc7eab72 KH |
1041 | contents + irel->r_offset - 2); |
1042 | else | |
5907e628 JL |
1043 | abort (); |
1044 | ||
bc7eab72 KH |
1045 | /* Fix the relocation's type. */ |
1046 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 JL |
1047 | R_H8_DIR8); |
1048 | ||
8c17da6e NC |
1049 | /* Move the relocation. */ |
1050 | irel->r_offset--; | |
1051 | ||
bc7eab72 KH |
1052 | /* Delete two bytes of data. */ |
1053 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1054 | irel->r_offset + 1, 2)) |
1055 | goto error_return; | |
1056 | ||
bc7eab72 | 1057 | /* That will change things, so, we should relax again. |
5907e628 | 1058 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1059 | *again = TRUE; |
5907e628 JL |
1060 | } |
1061 | break; | |
1062 | } | |
1063 | ||
1064 | /* This is a 24 bit absolute address in a "mov.b" insn, which may | |
1065 | become an 8 bit absolute address if its in the right range. */ | |
1066 | case R_H8_DIR24A8: | |
1067 | { | |
7a9823f1 | 1068 | bfd_vma value; |
5907e628 | 1069 | |
7a9823f1 RS |
1070 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1071 | if (value >= 0xffffff00u) | |
5907e628 | 1072 | { |
bc7eab72 | 1073 | unsigned char code; |
5907e628 | 1074 | |
bc7eab72 | 1075 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1076 | etc. */ |
bc7eab72 KH |
1077 | elf_section_data (sec)->relocs = internal_relocs; |
1078 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1079 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1080 | |
bc7eab72 KH |
1081 | /* Get the opcode. */ |
1082 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1083 | |
bc7eab72 KH |
1084 | /* Sanity check. */ |
1085 | if (code != 0x6a) | |
5907e628 JL |
1086 | abort (); |
1087 | ||
bc7eab72 | 1088 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
5907e628 | 1089 | |
03d14457 NC |
1090 | switch (code & 0xf0) |
1091 | { | |
7a9823f1 | 1092 | case 0x20: |
03d14457 NC |
1093 | bfd_put_8 (abfd, (code & 0xf) | 0x20, |
1094 | contents + irel->r_offset - 2); | |
1095 | break; | |
7a9823f1 | 1096 | case 0xa0: |
03d14457 NC |
1097 | bfd_put_8 (abfd, (code & 0xf) | 0x30, |
1098 | contents + irel->r_offset - 2); | |
1099 | break; | |
03d14457 NC |
1100 | default: |
1101 | abort (); | |
1102 | } | |
1103 | ||
bc7eab72 KH |
1104 | /* Fix the relocation's type. */ |
1105 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 | 1106 | R_H8_DIR8); |
7a9823f1 | 1107 | irel->r_offset--; |
5907e628 | 1108 | |
bc7eab72 | 1109 | /* Delete two bytes of data. */ |
7a9823f1 RS |
1110 | if (!elf32_h8_relax_delete_bytes (abfd, sec, |
1111 | irel->r_offset + 1, 4)) | |
5907e628 JL |
1112 | goto error_return; |
1113 | ||
bc7eab72 | 1114 | /* That will change things, so, we should relax again. |
5907e628 | 1115 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1116 | *again = TRUE; |
7a9823f1 | 1117 | break; |
5907e628 JL |
1118 | } |
1119 | } | |
1120 | ||
1121 | /* FALLTHRU */ | |
1122 | ||
1123 | /* This is a 24/32bit absolute address in a "mov" insn, which may | |
4cc11e76 | 1124 | become a 16-bit absolute address if it is in the right range. */ |
5907e628 JL |
1125 | case R_H8_DIR32A16: |
1126 | { | |
7a9823f1 | 1127 | bfd_vma value; |
5907e628 | 1128 | |
7a9823f1 RS |
1129 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1130 | if (value <= 0x7fff || value >= 0xffff8000u) | |
5907e628 | 1131 | { |
bc7eab72 | 1132 | unsigned char code; |
5907e628 | 1133 | |
bc7eab72 | 1134 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1135 | etc. */ |
bc7eab72 KH |
1136 | elf_section_data (sec)->relocs = internal_relocs; |
1137 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1138 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1139 | |
bc7eab72 KH |
1140 | /* Get the opcode. */ |
1141 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
5907e628 | 1142 | |
bc7eab72 KH |
1143 | /* We just need to turn off bit 0x20. */ |
1144 | code &= ~0x20; | |
5907e628 | 1145 | |
bc7eab72 | 1146 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); |
5907e628 | 1147 | |
bc7eab72 KH |
1148 | /* Fix the relocation's type. */ |
1149 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
8c17da6e | 1150 | R_H8_DIR16); |
5907e628 | 1151 | |
bc7eab72 KH |
1152 | /* Delete two bytes of data. */ |
1153 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1154 | irel->r_offset + 1, 2)) |
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; |
5907e628 JL |
1160 | } |
1161 | break; | |
1162 | } | |
1163 | ||
1164 | default: | |
1165 | break; | |
1166 | } | |
1167 | } | |
1168 | ||
6cdc0ccc AM |
1169 | if (isymbuf != NULL |
1170 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5907e628 | 1171 | { |
6cdc0ccc AM |
1172 | if (! link_info->keep_memory) |
1173 | free (isymbuf); | |
1174 | else | |
1175 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
5907e628 JL |
1176 | } |
1177 | ||
6cdc0ccc AM |
1178 | if (contents != NULL |
1179 | && elf_section_data (sec)->this_hdr.contents != contents) | |
5907e628 JL |
1180 | { |
1181 | if (! link_info->keep_memory) | |
6cdc0ccc | 1182 | free (contents); |
5907e628 JL |
1183 | else |
1184 | { | |
1185 | /* Cache the section contents for elf_link_input_bfd. */ | |
1186 | elf_section_data (sec)->this_hdr.contents = contents; | |
1187 | } | |
9ad5cbcf AM |
1188 | } |
1189 | ||
6cdc0ccc AM |
1190 | if (internal_relocs != NULL |
1191 | && elf_section_data (sec)->relocs != internal_relocs) | |
1192 | free (internal_relocs); | |
5907e628 | 1193 | |
b34976b6 | 1194 | return TRUE; |
5907e628 JL |
1195 | |
1196 | error_return: | |
6cdc0ccc AM |
1197 | if (isymbuf != NULL |
1198 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1199 | free (isymbuf); | |
1200 | if (contents != NULL | |
1201 | && elf_section_data (sec)->this_hdr.contents != contents) | |
1202 | free (contents); | |
1203 | if (internal_relocs != NULL | |
1204 | && elf_section_data (sec)->relocs != internal_relocs) | |
1205 | free (internal_relocs); | |
b34976b6 | 1206 | return FALSE; |
5907e628 JL |
1207 | } |
1208 | ||
1209 | /* Delete some bytes from a section while relaxing. */ | |
1210 | ||
b34976b6 | 1211 | static bfd_boolean |
c6baf75e | 1212 | elf32_h8_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count) |
5907e628 JL |
1213 | { |
1214 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1215 | unsigned int sec_shndx; |
5907e628 JL |
1216 | bfd_byte *contents; |
1217 | Elf_Internal_Rela *irel, *irelend; | |
1218 | Elf_Internal_Rela *irelalign; | |
6cdc0ccc AM |
1219 | Elf_Internal_Sym *isym; |
1220 | Elf_Internal_Sym *isymend; | |
5907e628 | 1221 | bfd_vma toaddr; |
9ad5cbcf AM |
1222 | struct elf_link_hash_entry **sym_hashes; |
1223 | struct elf_link_hash_entry **end_hashes; | |
1224 | unsigned int symcount; | |
5907e628 | 1225 | |
9ad5cbcf | 1226 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1227 | |
1228 | contents = elf_section_data (sec)->this_hdr.contents; | |
1229 | ||
1230 | /* The deletion must stop at the next ALIGN reloc for an aligment | |
1231 | power larger than the number of bytes we are deleting. */ | |
1232 | ||
1233 | irelalign = NULL; | |
1234 | toaddr = sec->_cooked_size; | |
1235 | ||
1236 | irel = elf_section_data (sec)->relocs; | |
1237 | irelend = irel + sec->reloc_count; | |
1238 | ||
1239 | /* Actually delete the bytes. */ | |
dc810e39 AM |
1240 | memmove (contents + addr, contents + addr + count, |
1241 | (size_t) (toaddr - addr - count)); | |
5907e628 JL |
1242 | sec->_cooked_size -= count; |
1243 | ||
1244 | /* Adjust all the relocs. */ | |
1245 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1246 | { | |
1247 | /* Get the new reloc address. */ | |
1248 | if ((irel->r_offset > addr | |
1249 | && irel->r_offset < toaddr)) | |
1250 | irel->r_offset -= count; | |
1251 | } | |
1252 | ||
1253 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
1254 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1255 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1256 | isymend = isym + symtab_hdr->sh_info; | |
1257 | for (; isym < isymend; isym++) | |
5907e628 | 1258 | { |
6cdc0ccc AM |
1259 | if (isym->st_shndx == sec_shndx |
1260 | && isym->st_value > addr | |
1261 | && isym->st_value < toaddr) | |
1262 | isym->st_value -= count; | |
5907e628 JL |
1263 | } |
1264 | ||
1265 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1266 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1267 | - symtab_hdr->sh_info); | |
1268 | sym_hashes = elf_sym_hashes (abfd); | |
1269 | end_hashes = sym_hashes + symcount; | |
1270 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1271 | { |
9ad5cbcf AM |
1272 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1273 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1274 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1275 | && sym_hash->root.u.def.section == sec | |
1276 | && sym_hash->root.u.def.value > addr | |
1277 | && sym_hash->root.u.def.value < toaddr) | |
5907e628 | 1278 | { |
9ad5cbcf | 1279 | sym_hash->root.u.def.value -= count; |
5907e628 JL |
1280 | } |
1281 | } | |
1282 | ||
b34976b6 | 1283 | return TRUE; |
5907e628 JL |
1284 | } |
1285 | ||
b34976b6 AM |
1286 | /* Return TRUE if a symbol exists at the given address, else return |
1287 | FALSE. */ | |
1288 | static bfd_boolean | |
c6baf75e | 1289 | elf32_h8_symbol_address_p (bfd *abfd, asection *sec, bfd_vma addr) |
5907e628 JL |
1290 | { |
1291 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1292 | unsigned int sec_shndx; |
6cdc0ccc AM |
1293 | Elf_Internal_Sym *isym; |
1294 | Elf_Internal_Sym *isymend; | |
9ad5cbcf AM |
1295 | struct elf_link_hash_entry **sym_hashes; |
1296 | struct elf_link_hash_entry **end_hashes; | |
1297 | unsigned int symcount; | |
5907e628 | 1298 | |
9ad5cbcf | 1299 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1300 | |
1301 | /* Examine all the symbols. */ | |
9ad5cbcf | 1302 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
6cdc0ccc AM |
1303 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; |
1304 | isymend = isym + symtab_hdr->sh_info; | |
1305 | for (; isym < isymend; isym++) | |
5907e628 | 1306 | { |
6cdc0ccc AM |
1307 | if (isym->st_shndx == sec_shndx |
1308 | && isym->st_value == addr) | |
b34976b6 | 1309 | return TRUE; |
5907e628 JL |
1310 | } |
1311 | ||
9ad5cbcf AM |
1312 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1313 | - symtab_hdr->sh_info); | |
1314 | sym_hashes = elf_sym_hashes (abfd); | |
1315 | end_hashes = sym_hashes + symcount; | |
1316 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1317 | { |
9ad5cbcf AM |
1318 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1319 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1320 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1321 | && sym_hash->root.u.def.section == sec | |
1322 | && sym_hash->root.u.def.value == addr) | |
b34976b6 | 1323 | return TRUE; |
5907e628 | 1324 | } |
9ad5cbcf | 1325 | |
b34976b6 | 1326 | return FALSE; |
5907e628 JL |
1327 | } |
1328 | ||
1329 | /* This is a version of bfd_generic_get_relocated_section_contents | |
1330 | which uses elf32_h8_relocate_section. */ | |
1331 | ||
1332 | static bfd_byte * | |
c6baf75e RS |
1333 | elf32_h8_get_relocated_section_contents (bfd *output_bfd, |
1334 | struct bfd_link_info *link_info, | |
1335 | struct bfd_link_order *link_order, | |
1336 | bfd_byte *data, | |
1337 | bfd_boolean relocatable, | |
1338 | asymbol **symbols) | |
5907e628 JL |
1339 | { |
1340 | Elf_Internal_Shdr *symtab_hdr; | |
1341 | asection *input_section = link_order->u.indirect.section; | |
1342 | bfd *input_bfd = input_section->owner; | |
1343 | asection **sections = NULL; | |
1344 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 1345 | Elf_Internal_Sym *isymbuf = NULL; |
5907e628 JL |
1346 | |
1347 | /* We only need to handle the case of relaxing, or of having a | |
1348 | particular set of section contents, specially. */ | |
1049f94e | 1349 | if (relocatable |
5907e628 JL |
1350 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
1351 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
1352 | link_order, data, | |
1049f94e | 1353 | relocatable, |
5907e628 JL |
1354 | symbols); |
1355 | ||
1356 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1357 | ||
1358 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
dc810e39 | 1359 | (size_t) input_section->_raw_size); |
5907e628 JL |
1360 | |
1361 | if ((input_section->flags & SEC_RELOC) != 0 | |
1362 | && input_section->reloc_count > 0) | |
1363 | { | |
5907e628 | 1364 | asection **secpp; |
6cdc0ccc | 1365 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 1366 | bfd_size_type amt; |
5907e628 | 1367 | |
45d6a902 | 1368 | internal_relocs = (_bfd_elf_link_read_relocs |
5907e628 | 1369 | (input_bfd, input_section, (PTR) NULL, |
b34976b6 | 1370 | (Elf_Internal_Rela *) NULL, FALSE)); |
5907e628 JL |
1371 | if (internal_relocs == NULL) |
1372 | goto error_return; | |
1373 | ||
6cdc0ccc AM |
1374 | if (symtab_hdr->sh_info != 0) |
1375 | { | |
1376 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1377 | if (isymbuf == NULL) | |
1378 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
1379 | symtab_hdr->sh_info, 0, | |
1380 | NULL, NULL, NULL); | |
1381 | if (isymbuf == NULL) | |
1382 | goto error_return; | |
1383 | } | |
5907e628 | 1384 | |
9ad5cbcf AM |
1385 | amt = symtab_hdr->sh_info; |
1386 | amt *= sizeof (asection *); | |
1387 | sections = (asection **) bfd_malloc (amt); | |
1388 | if (sections == NULL && amt != 0) | |
5907e628 JL |
1389 | goto error_return; |
1390 | ||
6cdc0ccc AM |
1391 | isymend = isymbuf + symtab_hdr->sh_info; |
1392 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
5907e628 JL |
1393 | { |
1394 | asection *isec; | |
1395 | ||
6cdc0ccc | 1396 | if (isym->st_shndx == SHN_UNDEF) |
5907e628 | 1397 | isec = bfd_und_section_ptr; |
6cdc0ccc | 1398 | else if (isym->st_shndx == SHN_ABS) |
5907e628 | 1399 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 1400 | else if (isym->st_shndx == SHN_COMMON) |
5907e628 JL |
1401 | isec = bfd_com_section_ptr; |
1402 | else | |
6cdc0ccc | 1403 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
5907e628 JL |
1404 | |
1405 | *secpp = isec; | |
1406 | } | |
1407 | ||
1408 | if (! elf32_h8_relocate_section (output_bfd, link_info, input_bfd, | |
1409 | input_section, data, internal_relocs, | |
6cdc0ccc | 1410 | isymbuf, sections)) |
5907e628 JL |
1411 | goto error_return; |
1412 | ||
1413 | if (sections != NULL) | |
1414 | free (sections); | |
6cdc0ccc AM |
1415 | if (isymbuf != NULL |
1416 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1417 | free (isymbuf); | |
1418 | if (elf_section_data (input_section)->relocs != internal_relocs) | |
5907e628 | 1419 | free (internal_relocs); |
5907e628 JL |
1420 | } |
1421 | ||
1422 | return data; | |
1423 | ||
1424 | error_return: | |
5907e628 JL |
1425 | if (sections != NULL) |
1426 | free (sections); | |
6cdc0ccc AM |
1427 | if (isymbuf != NULL |
1428 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1429 | free (isymbuf); | |
1430 | if (internal_relocs != NULL | |
1431 | && elf_section_data (input_section)->relocs != internal_relocs) | |
1432 | free (internal_relocs); | |
5907e628 JL |
1433 | return NULL; |
1434 | } | |
1435 | ||
2627de83 AM |
1436 | static asection * |
1437 | elf32_h8_gc_mark_hook (asection *sec, | |
1438 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1439 | Elf_Internal_Rela *rel ATTRIBUTE_UNUSED, | |
1440 | struct elf_link_hash_entry *h, | |
1441 | Elf_Internal_Sym *sym) | |
1442 | { | |
1443 | if (h != NULL) | |
1444 | { | |
1445 | switch (h->root.type) | |
1446 | { | |
1447 | case bfd_link_hash_defined: | |
1448 | case bfd_link_hash_defweak: | |
1449 | return h->root.u.def.section; | |
1450 | ||
1451 | case bfd_link_hash_common: | |
1452 | return h->root.u.c.p->section; | |
1453 | ||
1454 | default: | |
1455 | break; | |
1456 | } | |
1457 | } | |
1458 | else | |
1459 | return bfd_section_from_elf_index(sec->owner, sym->st_shndx); | |
1460 | return NULL; | |
1461 | } | |
1462 | ||
1463 | static bfd_boolean | |
1464 | elf32_h8_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, | |
1465 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1466 | asection *sec ATTRIBUTE_UNUSED, | |
1467 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) | |
1468 | { | |
1469 | return TRUE; | |
1470 | } | |
1471 | ||
0a83638b | 1472 | |
e01b0e69 JR |
1473 | #define TARGET_BIG_SYM bfd_elf32_h8300_vec |
1474 | #define TARGET_BIG_NAME "elf32-h8300" | |
1475 | #define ELF_ARCH bfd_arch_h8300 | |
1476 | #define ELF_MACHINE_CODE EM_H8_300 | |
1477 | #define ELF_MAXPAGESIZE 0x1 | |
1478 | #define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup | |
1479 | #define elf_info_to_howto elf32_h8_info_to_howto | |
1480 | #define elf_info_to_howto_rel elf32_h8_info_to_howto_rel | |
1481 | ||
0a83638b JL |
1482 | /* So we can set/examine bits in e_flags to get the specific |
1483 | H8 architecture in use. */ | |
1484 | #define elf_backend_final_write_processing \ | |
1485 | elf32_h8_final_write_processing | |
1486 | #define elf_backend_object_p \ | |
1487 | elf32_h8_object_p | |
1488 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
1489 | elf32_h8_merge_private_bfd_data | |
2627de83 AM |
1490 | #define elf_backend_gc_mark_hook elf32_h8_gc_mark_hook |
1491 | #define elf_backend_gc_sweep_hook elf32_h8_gc_sweep_hook | |
0a83638b | 1492 | |
e01b0e69 JR |
1493 | /* ??? when elf_backend_relocate_section is not defined, elf32-target.h |
1494 | defaults to using _bfd_generic_link_hash_table_create, but | |
1495 | elflink.h:bfd_elf32_size_dynamic_sections uses | |
1496 | dynobj = elf_hash_table (info)->dynobj; | |
1497 | and thus requires an elf hash table. */ | |
1498 | #define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create | |
1499 | ||
5e47149d JL |
1500 | /* Use an H8 specific linker, not the ELF generic linker. */ |
1501 | #define elf_backend_relocate_section elf32_h8_relocate_section | |
f0fe0e16 | 1502 | #define elf_backend_rela_normal 1 |
2627de83 | 1503 | #define elf_backend_can_gc_sections 1 |
5e47149d | 1504 | |
5907e628 JL |
1505 | /* And relaxing stuff. */ |
1506 | #define bfd_elf32_bfd_relax_section elf32_h8_relax_section | |
1507 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
1508 | elf32_h8_get_relocated_section_contents | |
1509 | ||
1510 | ||
e01b0e69 | 1511 | #include "elf32-target.h" |