Commit | Line | Data |
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c2dcd04e | 1 | /* BFD back-end for Renesas H8/300 ELF binaries. |
ab96bf03 AM |
2 | Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006, |
3 | 2007 Free Software Foundation, Inc. | |
e01b0e69 | 4 | |
e514ac71 | 5 | This file is part of BFD, the Binary File Descriptor library. |
e01b0e69 | 6 | |
e514ac71 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
e01b0e69 | 11 | |
e514ac71 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
e01b0e69 | 16 | |
e514ac71 NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
3e110533 | 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
e01b0e69 JR |
20 | |
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | #include "elf/h8.h" | |
26 | ||
27 | static reloc_howto_type *elf32_h8_reloc_type_lookup | |
c6baf75e | 28 | (bfd *abfd, bfd_reloc_code_real_type code); |
e01b0e69 | 29 | static void elf32_h8_info_to_howto |
c6baf75e | 30 | (bfd *, arelent *, Elf_Internal_Rela *); |
5e47149d | 31 | static void elf32_h8_info_to_howto_rel |
c6baf75e | 32 | (bfd *, arelent *, Elf_Internal_Rela *); |
96ef1419 KH |
33 | static unsigned long elf32_h8_mach (flagword); |
34 | static void elf32_h8_final_write_processing (bfd *, bfd_boolean); | |
35 | static bfd_boolean elf32_h8_object_p (bfd *); | |
36 | static bfd_boolean elf32_h8_merge_private_bfd_data (bfd *, bfd *); | |
b34976b6 | 37 | static bfd_boolean elf32_h8_relax_section |
c6baf75e | 38 | (bfd *, asection *, struct bfd_link_info *, bfd_boolean *); |
b34976b6 | 39 | static bfd_boolean elf32_h8_relax_delete_bytes |
c6baf75e | 40 | (bfd *, asection *, bfd_vma, int); |
96ef1419 | 41 | static bfd_boolean elf32_h8_symbol_address_p (bfd *, asection *, bfd_vma); |
dc810e39 | 42 | static bfd_byte *elf32_h8_get_relocated_section_contents |
c6baf75e RS |
43 | (bfd *, struct bfd_link_info *, struct bfd_link_order *, |
44 | bfd_byte *, bfd_boolean, asymbol **); | |
5e47149d | 45 | static bfd_reloc_status_type elf32_h8_final_link_relocate |
c6baf75e RS |
46 | (unsigned long, bfd *, bfd *, asection *, |
47 | bfd_byte *, bfd_vma, bfd_vma, bfd_vma, | |
48 | struct bfd_link_info *, asection *, int); | |
b34976b6 | 49 | static bfd_boolean elf32_h8_relocate_section |
c6baf75e RS |
50 | (bfd *, struct bfd_link_info *, bfd *, asection *, |
51 | bfd_byte *, Elf_Internal_Rela *, | |
52 | Elf_Internal_Sym *, asection **); | |
dc810e39 | 53 | static bfd_reloc_status_type special |
c6baf75e | 54 | (bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **); |
e01b0e69 JR |
55 | |
56 | /* This does not include any relocation information, but should be | |
57 | good enough for GDB or objdump to read the file. */ | |
58 | ||
bc7eab72 | 59 | static reloc_howto_type h8_elf_howto_table[] = { |
e01b0e69 JR |
60 | #define R_H8_NONE_X 0 |
61 | HOWTO (R_H8_NONE, /* type */ | |
62 | 0, /* rightshift */ | |
63 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
64 | 0, /* bitsize */ | |
b34976b6 | 65 | FALSE, /* pc_relative */ |
e01b0e69 | 66 | 0, /* bitpos */ |
9d29900b NC |
67 | complain_overflow_dont,/* complain_on_overflow */ |
68 | special, /* special_function */ | |
e01b0e69 | 69 | "R_H8_NONE", /* name */ |
b34976b6 | 70 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
71 | 0, /* src_mask */ |
72 | 0, /* dst_mask */ | |
b34976b6 | 73 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
74 | #define R_H8_DIR32_X (R_H8_NONE_X + 1) |
75 | HOWTO (R_H8_DIR32, /* type */ | |
76 | 0, /* rightshift */ | |
77 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
78 | 32, /* bitsize */ | |
b34976b6 | 79 | FALSE, /* pc_relative */ |
e01b0e69 | 80 | 0, /* bitpos */ |
9d29900b NC |
81 | complain_overflow_dont,/* complain_on_overflow */ |
82 | special, /* special_function */ | |
e01b0e69 | 83 | "R_H8_DIR32", /* name */ |
b34976b6 | 84 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
85 | 0, /* src_mask */ |
86 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 87 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
88 | #define R_H8_DIR16_X (R_H8_DIR32_X + 1) |
89 | HOWTO (R_H8_DIR16, /* type */ | |
90 | 0, /* rightshift */ | |
91 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
92 | 16, /* bitsize */ | |
b34976b6 | 93 | FALSE, /* pc_relative */ |
e01b0e69 | 94 | 0, /* bitpos */ |
9d29900b NC |
95 | complain_overflow_dont,/* complain_on_overflow */ |
96 | special, /* special_function */ | |
e01b0e69 | 97 | "R_H8_DIR16", /* name */ |
b34976b6 | 98 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
99 | 0, /* src_mask */ |
100 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 101 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
102 | #define R_H8_DIR8_X (R_H8_DIR16_X + 1) |
103 | HOWTO (R_H8_DIR8, /* type */ | |
104 | 0, /* rightshift */ | |
105 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
106 | 8, /* bitsize */ | |
b34976b6 | 107 | FALSE, /* pc_relative */ |
e01b0e69 | 108 | 0, /* bitpos */ |
9d29900b NC |
109 | complain_overflow_dont,/* complain_on_overflow */ |
110 | special, /* special_function */ | |
111 | "R_H8_DIR8", /* name */ | |
b34976b6 | 112 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
113 | 0, /* src_mask */ |
114 | 0x000000ff, /* dst_mask */ | |
b34976b6 | 115 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
116 | #define R_H8_DIR16A8_X (R_H8_DIR8_X + 1) |
117 | HOWTO (R_H8_DIR16A8, /* type */ | |
118 | 0, /* rightshift */ | |
119 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
120 | 16, /* bitsize */ | |
b34976b6 | 121 | FALSE, /* pc_relative */ |
e01b0e69 JR |
122 | 0, /* bitpos */ |
123 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 124 | special, /* special_function */ |
e01b0e69 | 125 | "R_H8_DIR16A8", /* name */ |
b34976b6 | 126 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
127 | 0, /* src_mask */ |
128 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 129 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
130 | #define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1) |
131 | HOWTO (R_H8_DIR16R8, /* type */ | |
132 | 0, /* rightshift */ | |
133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
134 | 16, /* bitsize */ | |
b34976b6 | 135 | FALSE, /* pc_relative */ |
e01b0e69 JR |
136 | 0, /* bitpos */ |
137 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 138 | special, /* special_function */ |
e01b0e69 | 139 | "R_H8_DIR16R8", /* name */ |
b34976b6 | 140 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
141 | 0, /* src_mask */ |
142 | 0x0000ffff, /* dst_mask */ | |
b34976b6 | 143 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
144 | #define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1) |
145 | HOWTO (R_H8_DIR24A8, /* type */ | |
146 | 0, /* rightshift */ | |
147 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
148 | 24, /* bitsize */ | |
b34976b6 | 149 | FALSE, /* pc_relative */ |
e01b0e69 JR |
150 | 0, /* bitpos */ |
151 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 152 | special, /* special_function */ |
e01b0e69 | 153 | "R_H8_DIR24A8", /* name */ |
b34976b6 | 154 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
155 | 0xff000000, /* src_mask */ |
156 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 157 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
158 | #define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1) |
159 | HOWTO (R_H8_DIR24R8, /* type */ | |
160 | 0, /* rightshift */ | |
161 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
162 | 24, /* bitsize */ | |
b34976b6 | 163 | FALSE, /* pc_relative */ |
e01b0e69 JR |
164 | 0, /* bitpos */ |
165 | complain_overflow_bitfield, /* complain_on_overflow */ | |
9d29900b | 166 | special, /* special_function */ |
e01b0e69 | 167 | "R_H8_DIR24R8", /* name */ |
b34976b6 | 168 | TRUE, /* partial_inplace */ |
e01b0e69 JR |
169 | 0xff000000, /* src_mask */ |
170 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 171 | FALSE), /* pcrel_offset */ |
e01b0e69 JR |
172 | #define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1) |
173 | HOWTO (R_H8_DIR32A16, /* type */ | |
174 | 0, /* rightshift */ | |
175 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
176 | 32, /* bitsize */ | |
b34976b6 | 177 | FALSE, /* pc_relative */ |
e01b0e69 | 178 | 0, /* bitpos */ |
9d29900b NC |
179 | complain_overflow_dont,/* complain_on_overflow */ |
180 | special, /* special_function */ | |
8c17da6e | 181 | "R_H8_DIR32A16", /* name */ |
b34976b6 | 182 | FALSE, /* partial_inplace */ |
e01b0e69 JR |
183 | 0, /* src_mask */ |
184 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 185 | FALSE), /* pcrel_offset */ |
f2352488 JL |
186 | #define R_H8_PCREL16_X (R_H8_DIR32A16_X + 1) |
187 | HOWTO (R_H8_PCREL16, /* type */ | |
188 | 0, /* rightshift */ | |
189 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
190 | 16, /* bitsize */ | |
b34976b6 | 191 | TRUE, /* pc_relative */ |
f2352488 | 192 | 0, /* bitpos */ |
9d29900b NC |
193 | complain_overflow_signed,/* complain_on_overflow */ |
194 | special, /* special_function */ | |
f2352488 | 195 | "R_H8_PCREL16", /* name */ |
b34976b6 | 196 | FALSE, /* partial_inplace */ |
f2352488 JL |
197 | 0xffff, /* src_mask */ |
198 | 0xffff, /* dst_mask */ | |
b34976b6 | 199 | TRUE), /* pcrel_offset */ |
f2352488 JL |
200 | #define R_H8_PCREL8_X (R_H8_PCREL16_X + 1) |
201 | HOWTO (R_H8_PCREL8, /* type */ | |
202 | 0, /* rightshift */ | |
203 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
204 | 8, /* bitsize */ | |
b34976b6 | 205 | TRUE, /* pc_relative */ |
f2352488 | 206 | 0, /* bitpos */ |
9d29900b NC |
207 | complain_overflow_signed,/* complain_on_overflow */ |
208 | special, /* special_function */ | |
f2352488 | 209 | "R_H8_PCREL8", /* name */ |
b34976b6 | 210 | FALSE, /* partial_inplace */ |
f2352488 JL |
211 | 0xff, /* src_mask */ |
212 | 0xff, /* dst_mask */ | |
b34976b6 | 213 | TRUE), /* pcrel_offset */ |
e01b0e69 JR |
214 | }; |
215 | ||
216 | /* This structure is used to map BFD reloc codes to H8 ELF relocs. */ | |
217 | ||
bc7eab72 | 218 | struct elf_reloc_map { |
e01b0e69 JR |
219 | bfd_reloc_code_real_type bfd_reloc_val; |
220 | unsigned char howto_index; | |
221 | }; | |
222 | ||
6288878d | 223 | /* An array mapping BFD reloc codes to H8 ELF relocs. */ |
e01b0e69 | 224 | |
bc7eab72 | 225 | static const struct elf_reloc_map h8_reloc_map[] = { |
e01b0e69 JR |
226 | { BFD_RELOC_NONE, R_H8_NONE_X }, |
227 | { BFD_RELOC_32, R_H8_DIR32_X }, | |
228 | { BFD_RELOC_16, R_H8_DIR16_X }, | |
229 | { BFD_RELOC_8, R_H8_DIR8_X }, | |
230 | { BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X }, | |
231 | { BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X }, | |
232 | { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, | |
233 | { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, | |
234 | { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, | |
f2352488 JL |
235 | { BFD_RELOC_16_PCREL, R_H8_PCREL16_X }, |
236 | { BFD_RELOC_8_PCREL, R_H8_PCREL8_X }, | |
e01b0e69 JR |
237 | }; |
238 | ||
0a83638b | 239 | |
e01b0e69 | 240 | static reloc_howto_type * |
c6baf75e RS |
241 | elf32_h8_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
242 | bfd_reloc_code_real_type code) | |
e01b0e69 JR |
243 | { |
244 | unsigned int i; | |
245 | ||
246 | for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
247 | { | |
248 | if (h8_reloc_map[i].bfd_reloc_val == code) | |
249 | return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index]; | |
250 | } | |
251 | return NULL; | |
252 | } | |
253 | ||
157090f7 AM |
254 | static reloc_howto_type * |
255 | elf32_h8_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
256 | const char *r_name) | |
257 | { | |
258 | unsigned int i; | |
259 | ||
260 | for (i = 0; | |
261 | i < sizeof (h8_elf_howto_table) / sizeof (h8_elf_howto_table[0]); | |
262 | i++) | |
263 | if (h8_elf_howto_table[i].name != NULL | |
264 | && strcasecmp (h8_elf_howto_table[i].name, r_name) == 0) | |
265 | return &h8_elf_howto_table[i]; | |
266 | ||
267 | return NULL; | |
268 | } | |
269 | ||
e01b0e69 | 270 | static void |
c6baf75e RS |
271 | elf32_h8_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, |
272 | Elf_Internal_Rela *elf_reloc) | |
e01b0e69 JR |
273 | { |
274 | unsigned int r; | |
275 | unsigned int i; | |
276 | ||
277 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
278 | for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++) | |
bc7eab72 | 279 | if (h8_elf_howto_table[i].type == r) |
e01b0e69 JR |
280 | { |
281 | bfd_reloc->howto = &h8_elf_howto_table[i]; | |
282 | return; | |
283 | } | |
284 | abort (); | |
285 | } | |
286 | ||
287 | static void | |
c6baf75e RS |
288 | elf32_h8_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc, |
289 | Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED) | |
e01b0e69 JR |
290 | { |
291 | unsigned int r; | |
292 | ||
293 | abort (); | |
294 | r = ELF32_R_TYPE (elf_reloc->r_info); | |
295 | bfd_reloc->howto = &h8_elf_howto_table[r]; | |
296 | } | |
297 | ||
a00c9dbc JL |
298 | /* Special handling for H8/300 relocs. |
299 | We only come here for pcrel stuff and return normally if not an -r link. | |
300 | When doing -r, we can't do any arithmetic for the pcrel stuff, because | |
301 | we support relaxing on the H8/300 series chips. */ | |
302 | static bfd_reloc_status_type | |
c6baf75e RS |
303 | special (bfd *abfd ATTRIBUTE_UNUSED, |
304 | arelent *reloc_entry ATTRIBUTE_UNUSED, | |
305 | asymbol *symbol ATTRIBUTE_UNUSED, | |
306 | PTR data ATTRIBUTE_UNUSED, | |
307 | asection *input_section ATTRIBUTE_UNUSED, | |
308 | bfd *output_bfd, | |
309 | char **error_message ATTRIBUTE_UNUSED) | |
a00c9dbc JL |
310 | { |
311 | if (output_bfd == (bfd *) NULL) | |
312 | return bfd_reloc_continue; | |
313 | ||
314 | /* Adjust the reloc address to that in the output section. */ | |
315 | reloc_entry->address += input_section->output_offset; | |
316 | return bfd_reloc_ok; | |
317 | } | |
5e47149d JL |
318 | |
319 | /* Perform a relocation as part of a final link. */ | |
320 | static bfd_reloc_status_type | |
c6baf75e RS |
321 | elf32_h8_final_link_relocate (unsigned long r_type, bfd *input_bfd, |
322 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
323 | asection *input_section ATTRIBUTE_UNUSED, | |
324 | bfd_byte *contents, bfd_vma offset, | |
325 | bfd_vma value, bfd_vma addend, | |
326 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
327 | asection *sym_sec ATTRIBUTE_UNUSED, | |
328 | int is_local ATTRIBUTE_UNUSED) | |
5e47149d JL |
329 | { |
330 | bfd_byte *hit_data = contents + offset; | |
331 | ||
332 | switch (r_type) | |
333 | { | |
5e47149d JL |
334 | case R_H8_NONE: |
335 | return bfd_reloc_ok; | |
336 | ||
337 | case R_H8_DIR32: | |
338 | case R_H8_DIR32A16: | |
a00c9dbc | 339 | case R_H8_DIR24A8: |
5e47149d JL |
340 | value += addend; |
341 | bfd_put_32 (input_bfd, value, hit_data); | |
342 | return bfd_reloc_ok; | |
343 | ||
344 | case R_H8_DIR16: | |
345 | case R_H8_DIR16A8: | |
346 | case R_H8_DIR16R8: | |
347 | value += addend; | |
348 | bfd_put_16 (input_bfd, value, hit_data); | |
349 | return bfd_reloc_ok; | |
350 | ||
351 | /* AKA R_RELBYTE */ | |
352 | case R_H8_DIR8: | |
353 | value += addend; | |
354 | ||
5e47149d JL |
355 | bfd_put_8 (input_bfd, value, hit_data); |
356 | return bfd_reloc_ok; | |
357 | ||
5e47149d JL |
358 | case R_H8_DIR24R8: |
359 | value += addend; | |
360 | ||
a00c9dbc | 361 | /* HIT_DATA is the address for the first byte for the relocated |
e804e836 | 362 | value. Subtract 1 so that we can manipulate the data in 32-bit |
a00c9dbc JL |
363 | hunks. */ |
364 | hit_data--; | |
365 | ||
366 | /* Clear out the top byte in value. */ | |
5e47149d | 367 | value &= 0xffffff; |
a00c9dbc JL |
368 | |
369 | /* Retrieve the type byte for value from the section contents. */ | |
5e47149d | 370 | value |= (bfd_get_32 (input_bfd, hit_data) & 0xff000000); |
a00c9dbc | 371 | |
e804e836 | 372 | /* Now scribble it out in one 32-bit hunk. */ |
5e47149d JL |
373 | bfd_put_32 (input_bfd, value, hit_data); |
374 | return bfd_reloc_ok; | |
375 | ||
f2352488 JL |
376 | case R_H8_PCREL16: |
377 | value -= (input_section->output_section->vma | |
378 | + input_section->output_offset); | |
379 | value -= offset; | |
380 | value += addend; | |
381 | ||
a00c9dbc JL |
382 | /* The value is relative to the start of the instruction, |
383 | not the relocation offset. Subtract 2 to account for | |
384 | this minor issue. */ | |
385 | value -= 2; | |
386 | ||
f2352488 JL |
387 | bfd_put_16 (input_bfd, value, hit_data); |
388 | return bfd_reloc_ok; | |
389 | ||
390 | case R_H8_PCREL8: | |
391 | value -= (input_section->output_section->vma | |
392 | + input_section->output_offset); | |
393 | value -= offset; | |
394 | value += addend; | |
395 | ||
a00c9dbc JL |
396 | /* The value is relative to the start of the instruction, |
397 | not the relocation offset. Subtract 1 to account for | |
398 | this minor issue. */ | |
399 | value -= 1; | |
400 | ||
f2352488 JL |
401 | bfd_put_8 (input_bfd, value, hit_data); |
402 | return bfd_reloc_ok; | |
403 | ||
5e47149d JL |
404 | default: |
405 | return bfd_reloc_notsupported; | |
406 | } | |
407 | } | |
408 | \f | |
409 | /* Relocate an H8 ELF section. */ | |
b34976b6 | 410 | static bfd_boolean |
c6baf75e RS |
411 | elf32_h8_relocate_section (bfd *output_bfd, struct bfd_link_info *info, |
412 | bfd *input_bfd, asection *input_section, | |
413 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
414 | Elf_Internal_Sym *local_syms, | |
415 | asection **local_sections) | |
5e47149d JL |
416 | { |
417 | Elf_Internal_Shdr *symtab_hdr; | |
418 | struct elf_link_hash_entry **sym_hashes; | |
419 | Elf_Internal_Rela *rel, *relend; | |
420 | ||
421 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
422 | sym_hashes = elf_sym_hashes (input_bfd); | |
423 | ||
424 | rel = relocs; | |
425 | relend = relocs + input_section->reloc_count; | |
426 | for (; rel < relend; rel++) | |
427 | { | |
dc810e39 | 428 | unsigned int r_type; |
5e47149d JL |
429 | unsigned long r_symndx; |
430 | Elf_Internal_Sym *sym; | |
431 | asection *sec; | |
432 | struct elf_link_hash_entry *h; | |
433 | bfd_vma relocation; | |
434 | bfd_reloc_status_type r; | |
ab96bf03 AM |
435 | arelent bfd_reloc; |
436 | reloc_howto_type *howto; | |
437 | ||
438 | elf32_h8_info_to_howto (input_bfd, &bfd_reloc, rel); | |
439 | howto = bfd_reloc.howto; | |
5e47149d JL |
440 | |
441 | r_symndx = ELF32_R_SYM (rel->r_info); | |
442 | r_type = ELF32_R_TYPE (rel->r_info); | |
5e47149d JL |
443 | h = NULL; |
444 | sym = NULL; | |
445 | sec = NULL; | |
446 | if (r_symndx < symtab_hdr->sh_info) | |
447 | { | |
448 | sym = local_syms + r_symndx; | |
449 | sec = local_sections[r_symndx]; | |
8517fae7 | 450 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
5e47149d JL |
451 | } |
452 | else | |
453 | { | |
59c2e50f L |
454 | bfd_boolean unresolved_reloc, warned; |
455 | ||
b2a8e766 AM |
456 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
457 | r_symndx, symtab_hdr, sym_hashes, | |
458 | h, sec, relocation, | |
459 | unresolved_reloc, warned); | |
5e47149d JL |
460 | } |
461 | ||
ab96bf03 AM |
462 | if (sec != NULL && elf_discarded_section (sec)) |
463 | { | |
464 | /* For relocs against symbols from removed linkonce sections, | |
465 | or sections discarded by a linker script, we just want the | |
466 | section contents zeroed. Avoid any special processing. */ | |
467 | _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); | |
468 | rel->r_info = 0; | |
469 | rel->r_addend = 0; | |
470 | continue; | |
471 | } | |
472 | ||
473 | if (info->relocatable) | |
474 | continue; | |
475 | ||
5e47149d JL |
476 | r = elf32_h8_final_link_relocate (r_type, input_bfd, output_bfd, |
477 | input_section, | |
478 | contents, rel->r_offset, | |
479 | relocation, rel->r_addend, | |
480 | info, sec, h == NULL); | |
481 | ||
482 | if (r != bfd_reloc_ok) | |
483 | { | |
484 | const char *name; | |
485 | const char *msg = (const char *) 0; | |
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) | |
dfeffb9f L |
501 | (info, (h ? &h->root : NULL), name, howto->name, |
502 | (bfd_vma) 0, input_bfd, input_section, | |
503 | rel->r_offset))) | |
b34976b6 | 504 | return FALSE; |
5e47149d JL |
505 | break; |
506 | ||
507 | case bfd_reloc_undefined: | |
508 | if (! ((*info->callbacks->undefined_symbol) | |
509 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
510 | rel->r_offset, TRUE))) |
511 | return FALSE; | |
5e47149d JL |
512 | break; |
513 | ||
514 | case bfd_reloc_outofrange: | |
515 | msg = _("internal error: out of range error"); | |
516 | goto common_error; | |
517 | ||
518 | case bfd_reloc_notsupported: | |
519 | msg = _("internal error: unsupported relocation error"); | |
520 | goto common_error; | |
521 | ||
522 | case bfd_reloc_dangerous: | |
523 | msg = _("internal error: dangerous error"); | |
524 | goto common_error; | |
525 | ||
526 | default: | |
527 | msg = _("internal error: unknown error"); | |
528 | /* fall through */ | |
529 | ||
530 | common_error: | |
531 | if (!((*info->callbacks->warning) | |
532 | (info, msg, name, input_bfd, input_section, | |
533 | rel->r_offset))) | |
b34976b6 | 534 | return FALSE; |
5e47149d JL |
535 | break; |
536 | } | |
537 | } | |
538 | } | |
539 | ||
b34976b6 | 540 | return TRUE; |
5e47149d JL |
541 | } |
542 | ||
0a83638b JL |
543 | /* Object files encode the specific H8 model they were compiled |
544 | for in the ELF flags field. | |
545 | ||
546 | Examine that field and return the proper BFD machine type for | |
547 | the object file. */ | |
dc810e39 | 548 | static unsigned long |
c6baf75e | 549 | elf32_h8_mach (flagword flags) |
0a83638b JL |
550 | { |
551 | switch (flags & EF_H8_MACH) | |
552 | { | |
553 | case E_H8_MACH_H8300: | |
554 | default: | |
555 | return bfd_mach_h8300; | |
556 | ||
557 | case E_H8_MACH_H8300H: | |
558 | return bfd_mach_h8300h; | |
559 | ||
560 | case E_H8_MACH_H8300S: | |
561 | return bfd_mach_h8300s; | |
8d9cd6b1 NC |
562 | |
563 | case E_H8_MACH_H8300HN: | |
564 | return bfd_mach_h8300hn; | |
565 | ||
566 | case E_H8_MACH_H8300SN: | |
567 | return bfd_mach_h8300sn; | |
5d1db417 MS |
568 | |
569 | case E_H8_MACH_H8300SX: | |
570 | return bfd_mach_h8300sx; | |
f4984206 RS |
571 | |
572 | case E_H8_MACH_H8300SXN: | |
573 | return bfd_mach_h8300sxn; | |
0a83638b JL |
574 | } |
575 | } | |
576 | ||
577 | /* The final processing done just before writing out a H8 ELF object | |
578 | file. We use this opportunity to encode the BFD machine type | |
579 | into the flags field in the object file. */ | |
580 | ||
dc810e39 | 581 | static void |
c6baf75e RS |
582 | elf32_h8_final_write_processing (bfd *abfd, |
583 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
0a83638b JL |
584 | { |
585 | unsigned long val; | |
586 | ||
587 | switch (bfd_get_mach (abfd)) | |
588 | { | |
589 | default: | |
590 | case bfd_mach_h8300: | |
591 | val = E_H8_MACH_H8300; | |
592 | break; | |
593 | ||
594 | case bfd_mach_h8300h: | |
595 | val = E_H8_MACH_H8300H; | |
596 | break; | |
597 | ||
598 | case bfd_mach_h8300s: | |
599 | val = E_H8_MACH_H8300S; | |
600 | break; | |
8d9cd6b1 NC |
601 | |
602 | case bfd_mach_h8300hn: | |
603 | val = E_H8_MACH_H8300HN; | |
604 | break; | |
605 | ||
606 | case bfd_mach_h8300sn: | |
607 | val = E_H8_MACH_H8300SN; | |
608 | break; | |
5d1db417 MS |
609 | |
610 | case bfd_mach_h8300sx: | |
611 | val = E_H8_MACH_H8300SX; | |
612 | break; | |
f4984206 RS |
613 | |
614 | case bfd_mach_h8300sxn: | |
615 | val = E_H8_MACH_H8300SXN; | |
616 | break; | |
0a83638b JL |
617 | } |
618 | ||
619 | elf_elfheader (abfd)->e_flags &= ~ (EF_H8_MACH); | |
620 | elf_elfheader (abfd)->e_flags |= val; | |
621 | } | |
622 | ||
623 | /* Return nonzero if ABFD represents a valid H8 ELF object file; also | |
624 | record the encoded machine type found in the ELF flags. */ | |
625 | ||
b34976b6 | 626 | static bfd_boolean |
c6baf75e | 627 | elf32_h8_object_p (bfd *abfd) |
0a83638b JL |
628 | { |
629 | bfd_default_set_arch_mach (abfd, bfd_arch_h8300, | |
630 | elf32_h8_mach (elf_elfheader (abfd)->e_flags)); | |
b34976b6 | 631 | return TRUE; |
0a83638b JL |
632 | } |
633 | ||
634 | /* Merge backend specific data from an object file to the output | |
635 | object file when linking. The only data we need to copy at this | |
636 | time is the architecture/machine information. */ | |
637 | ||
b34976b6 | 638 | static bfd_boolean |
c6baf75e | 639 | elf32_h8_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
0a83638b JL |
640 | { |
641 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
642 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 643 | return TRUE; |
0a83638b JL |
644 | |
645 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
646 | && bfd_get_mach (obfd) < bfd_get_mach (ibfd)) | |
647 | { | |
648 | if (! bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), | |
96ef1419 KH |
649 | bfd_get_mach (ibfd))) |
650 | return FALSE; | |
0a83638b JL |
651 | } |
652 | ||
b34976b6 | 653 | return TRUE; |
0a83638b JL |
654 | } |
655 | ||
5907e628 JL |
656 | /* This function handles relaxing for the H8.. |
657 | ||
4cc11e76 | 658 | There are a few relaxing opportunities available on the H8: |
5907e628 JL |
659 | |
660 | jmp/jsr:24 -> bra/bsr:8 2 bytes | |
661 | The jmp may be completely eliminated if the previous insn is a | |
662 | conditional branch to the insn after the jump. In that case | |
663 | we invert the branch and delete the jump and save 4 bytes. | |
664 | ||
665 | bCC:16 -> bCC:8 2 bytes | |
666 | bsr:16 -> bsr:8 2 bytes | |
667 | ||
630a7b0a KH |
668 | bset:16 -> bset:8 2 bytes |
669 | bset:24/32 -> bset:8 4 bytes | |
670 | (also applicable to other bit manipulation instructions) | |
671 | ||
5907e628 JL |
672 | mov.b:16 -> mov.b:8 2 bytes |
673 | mov.b:24/32 -> mov.b:8 4 bytes | |
674 | ||
7e89635a KH |
675 | bset:24/32 -> bset:16 2 bytes |
676 | (also applicable to other bit manipulation instructions) | |
677 | ||
76f99c63 | 678 | mov.[bwl]:24/32 -> mov.[bwl]:16 2 bytes */ |
5907e628 | 679 | |
b34976b6 | 680 | static bfd_boolean |
c6baf75e RS |
681 | elf32_h8_relax_section (bfd *abfd, asection *sec, |
682 | struct bfd_link_info *link_info, bfd_boolean *again) | |
5907e628 JL |
683 | { |
684 | Elf_Internal_Shdr *symtab_hdr; | |
685 | Elf_Internal_Rela *internal_relocs; | |
5907e628 JL |
686 | Elf_Internal_Rela *irel, *irelend; |
687 | bfd_byte *contents = NULL; | |
6cdc0ccc | 688 | Elf_Internal_Sym *isymbuf = NULL; |
5907e628 JL |
689 | static asection *last_input_section = NULL; |
690 | static Elf_Internal_Rela *last_reloc = NULL; | |
691 | ||
692 | /* Assume nothing changes. */ | |
b34976b6 | 693 | *again = FALSE; |
5907e628 | 694 | |
1049f94e | 695 | /* We don't have to do anything for a relocatable link, if |
5907e628 JL |
696 | this section does not have relocs, or if this is not a |
697 | code section. */ | |
1049f94e | 698 | if (link_info->relocatable |
5907e628 JL |
699 | || (sec->flags & SEC_RELOC) == 0 |
700 | || sec->reloc_count == 0 | |
701 | || (sec->flags & SEC_CODE) == 0) | |
b34976b6 | 702 | return TRUE; |
5907e628 | 703 | |
5907e628 JL |
704 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
705 | ||
706 | /* Get a copy of the native relocations. */ | |
45d6a902 | 707 | internal_relocs = (_bfd_elf_link_read_relocs |
5907e628 JL |
708 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
709 | link_info->keep_memory)); | |
710 | if (internal_relocs == NULL) | |
711 | goto error_return; | |
5907e628 JL |
712 | |
713 | if (sec != last_input_section) | |
714 | last_reloc = NULL; | |
715 | ||
716 | last_input_section = sec; | |
717 | ||
718 | /* Walk through the relocs looking for relaxing opportunities. */ | |
719 | irelend = internal_relocs + sec->reloc_count; | |
720 | for (irel = internal_relocs; irel < irelend; irel++) | |
721 | { | |
722 | bfd_vma symval; | |
723 | ||
724 | /* Keep track of the previous reloc so that we can delete | |
725 | some long jumps created by the compiler. */ | |
726 | if (irel != internal_relocs) | |
727 | last_reloc = irel - 1; | |
728 | ||
76f99c63 JL |
729 | if (ELF32_R_TYPE (irel->r_info) != R_H8_DIR24R8 |
730 | && ELF32_R_TYPE (irel->r_info) != R_H8_PCREL16 | |
731 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR16A8 | |
732 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR24A8 | |
733 | && ELF32_R_TYPE (irel->r_info) != R_H8_DIR32A16) | |
734 | continue; | |
735 | ||
5907e628 JL |
736 | /* Get the section contents if we haven't done so already. */ |
737 | if (contents == NULL) | |
738 | { | |
739 | /* Get cached copy if it exists. */ | |
740 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
741 | contents = elf_section_data (sec)->this_hdr.contents; | |
742 | else | |
743 | { | |
744 | /* Go get them off disk. */ | |
eea6121a | 745 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
5907e628 JL |
746 | goto error_return; |
747 | } | |
748 | } | |
749 | ||
9ad5cbcf | 750 | /* Read this BFD's local symbols if we haven't done so already. */ |
6cdc0ccc | 751 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
5907e628 | 752 | { |
6cdc0ccc AM |
753 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
754 | if (isymbuf == NULL) | |
755 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
756 | symtab_hdr->sh_info, 0, | |
757 | NULL, NULL, NULL); | |
758 | if (isymbuf == NULL) | |
759 | goto error_return; | |
5907e628 JL |
760 | } |
761 | ||
762 | /* Get the value of the symbol referred to by the reloc. */ | |
763 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
764 | { | |
5907e628 | 765 | /* A local symbol. */ |
6cdc0ccc AM |
766 | Elf_Internal_Sym *isym; |
767 | asection *sym_sec; | |
5907e628 | 768 | |
32ac2c9a | 769 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
6cdc0ccc | 770 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
03d14457 NC |
771 | symval = isym->st_value; |
772 | /* If the reloc is absolute, it will not have | |
773 | a symbol or section associated with it. */ | |
774 | if (sym_sec) | |
775 | symval += sym_sec->output_section->vma | |
776 | + sym_sec->output_offset; | |
5907e628 JL |
777 | } |
778 | else | |
779 | { | |
780 | unsigned long indx; | |
781 | struct elf_link_hash_entry *h; | |
782 | ||
783 | /* An external symbol. */ | |
784 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
785 | h = elf_sym_hashes (abfd)[indx]; | |
786 | BFD_ASSERT (h != NULL); | |
787 | if (h->root.type != bfd_link_hash_defined | |
788 | && h->root.type != bfd_link_hash_defweak) | |
789 | { | |
790 | /* This appears to be a reference to an undefined | |
791 | symbol. Just ignore it--it will be caught by the | |
792 | regular reloc processing. */ | |
793 | continue; | |
794 | } | |
795 | ||
796 | symval = (h->root.u.def.value | |
797 | + h->root.u.def.section->output_section->vma | |
798 | + h->root.u.def.section->output_offset); | |
799 | } | |
800 | ||
801 | /* For simplicity of coding, we are going to modify the section | |
802 | contents, the section relocs, and the BFD symbol table. We | |
803 | must tell the rest of the code not to free up this | |
804 | information. It would be possible to instead create a table | |
805 | of changes which have to be made, as is done in coff-mips.c; | |
806 | that would be more work, but would require less memory when | |
807 | the linker is run. */ | |
808 | switch (ELF32_R_TYPE (irel->r_info)) | |
809 | { | |
e804e836 | 810 | /* Try to turn a 24-bit absolute branch/call into an 8-bit |
5907e628 JL |
811 | pc-relative branch/call. */ |
812 | case R_H8_DIR24R8: | |
813 | { | |
814 | bfd_vma value = symval + irel->r_addend; | |
815 | bfd_vma dot, gap; | |
816 | ||
817 | /* Get the address of this instruction. */ | |
818 | dot = (sec->output_section->vma | |
819 | + sec->output_offset + irel->r_offset - 1); | |
820 | ||
821 | /* Compute the distance from this insn to the branch target. */ | |
822 | gap = value - dot; | |
823 | ||
824 | /* If the distance is within -126..+130 inclusive, then we can | |
825 | relax this jump. +130 is valid since the target will move | |
826 | two bytes closer if we do relax this branch. */ | |
dc810e39 | 827 | if ((int) gap >= -126 && (int) gap <= 130) |
5907e628 JL |
828 | { |
829 | unsigned char code; | |
830 | ||
831 | /* Note that we've changed the relocs, section contents, | |
832 | etc. */ | |
833 | elf_section_data (sec)->relocs = internal_relocs; | |
5907e628 | 834 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 835 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 836 | |
e514ac71 NC |
837 | /* Get the instruction code being relaxed. */ |
838 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
839 | ||
5907e628 JL |
840 | /* If the previous instruction conditionally jumped around |
841 | this instruction, we may be able to reverse the condition | |
842 | and redirect the previous instruction to the target of | |
843 | this instruction. | |
844 | ||
845 | Such sequences are used by the compiler to deal with | |
e514ac71 NC |
846 | long conditional branches. |
847 | ||
848 | Only perform this optimisation for jumps (code 0x5a) not | |
849 | subroutine calls, as otherwise it could transform: | |
b34976b6 | 850 | |
e514ac71 NC |
851 | mov.w r0,r0 |
852 | beq .L1 | |
853 | jsr @_bar | |
854 | .L1: rts | |
855 | _bar: rts | |
856 | into: | |
857 | mov.w r0,r0 | |
858 | bne _bar | |
859 | rts | |
860 | _bar: rts | |
861 | ||
862 | which changes the call (jsr) into a branch (bne). */ | |
863 | if (code == 0x5a | |
864 | && (int) gap <= 130 | |
dc810e39 | 865 | && (int) gap >= -128 |
5907e628 JL |
866 | && last_reloc |
867 | && ELF32_R_TYPE (last_reloc->r_info) == R_H8_PCREL8 | |
868 | && ELF32_R_SYM (last_reloc->r_info) < symtab_hdr->sh_info) | |
869 | { | |
870 | bfd_vma last_value; | |
871 | asection *last_sym_sec; | |
6cdc0ccc | 872 | Elf_Internal_Sym *last_sym; |
5907e628 JL |
873 | |
874 | /* We will need to examine the symbol used by the | |
875 | previous relocation. */ | |
dc810e39 | 876 | |
6cdc0ccc | 877 | last_sym = isymbuf + ELF32_R_SYM (last_reloc->r_info); |
5907e628 | 878 | last_sym_sec |
6cdc0ccc AM |
879 | = bfd_section_from_elf_index (abfd, last_sym->st_shndx); |
880 | last_value = (last_sym->st_value | |
5907e628 JL |
881 | + last_sym_sec->output_section->vma |
882 | + last_sym_sec->output_offset); | |
883 | ||
884 | /* Verify that the previous relocation was for a | |
885 | branch around this instruction and that no symbol | |
886 | exists at the current location. */ | |
887 | if (last_value == dot + 4 | |
888 | && last_reloc->r_offset + 2 == irel->r_offset | |
9ad5cbcf | 889 | && ! elf32_h8_symbol_address_p (abfd, sec, dot)) |
5907e628 JL |
890 | { |
891 | /* We can eliminate this jump. Twiddle the | |
892 | previous relocation as necessary. */ | |
893 | irel->r_info | |
894 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
895 | ELF32_R_TYPE (R_H8_NONE)); | |
896 | ||
bc7eab72 | 897 | last_reloc->r_info |
5907e628 | 898 | = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
bc7eab72 KH |
899 | ELF32_R_TYPE (R_H8_PCREL8)); |
900 | last_reloc->r_addend = irel->r_addend; | |
5907e628 JL |
901 | |
902 | code = bfd_get_8 (abfd, | |
903 | contents + last_reloc->r_offset - 1); | |
904 | code ^= 1; | |
905 | bfd_put_8 (abfd, | |
906 | code, | |
907 | contents + last_reloc->r_offset - 1); | |
908 | ||
909 | /* Delete four bytes of data. */ | |
910 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
911 | irel->r_offset - 1, | |
912 | 4)) | |
913 | goto error_return; | |
914 | ||
b34976b6 | 915 | *again = TRUE; |
5907e628 JL |
916 | break; |
917 | } | |
918 | } | |
919 | ||
5907e628 | 920 | if (code == 0x5e) |
7e89635a | 921 | /* This is jsr. */ |
5907e628 JL |
922 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 1); |
923 | else if (code == 0x5a) | |
7e89635a | 924 | /* This is jmp. */ |
5907e628 JL |
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 | ||
e804e836 | 945 | /* Try to turn a 16-bit pc-relative branch into a 8-bit pc-relative |
5907e628 JL |
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 */ | |
7e89635a KH |
979 | /* Get the second byte of the original insn, which |
980 | contains the condition code. */ | |
5907e628 | 981 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
7e89635a KH |
982 | |
983 | /* Compute the fisrt byte of the relaxed | |
984 | instruction. The original sequence 0x58 0xX0 | |
985 | is relaxed to 0x4X, where X represents the | |
986 | condition code. */ | |
5907e628 JL |
987 | code &= 0xf0; |
988 | code >>= 4; | |
989 | code |= 0x40; | |
990 | bfd_put_8 (abfd, code, contents + irel->r_offset - 2); | |
991 | } | |
992 | else if (code == 0x5c) | |
7e89635a | 993 | /* This is bsr. */ |
5907e628 JL |
994 | bfd_put_8 (abfd, 0x55, contents + irel->r_offset - 2); |
995 | else | |
996 | abort (); | |
997 | ||
998 | /* Fix the relocation's type. */ | |
bc7eab72 | 999 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
5907e628 | 1000 | R_H8_PCREL8); |
bc7eab72 | 1001 | irel->r_offset--; |
5907e628 | 1002 | |
bc7eab72 KH |
1003 | /* Delete two bytes of data. */ |
1004 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1005 | irel->r_offset + 1, 2)) |
1006 | goto error_return; | |
1007 | ||
bc7eab72 | 1008 | /* That will change things, so, we should relax again. |
5907e628 | 1009 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1010 | *again = TRUE; |
5907e628 JL |
1011 | } |
1012 | break; | |
1013 | } | |
1014 | ||
630a7b0a KH |
1015 | /* This is a 16-bit absolute address in one of the following |
1016 | instructions: | |
1017 | ||
1018 | "band", "bclr", "biand", "bild", "bior", "bist", "bixor", | |
1019 | "bld", "bnot", "bor", "bset", "bst", "btst", "bxor", and | |
1020 | "mov.b" | |
1021 | ||
1022 | We may relax this into an 8-bit absolute address if it's in | |
1023 | the right range. */ | |
5907e628 JL |
1024 | case R_H8_DIR16A8: |
1025 | { | |
7a9823f1 | 1026 | bfd_vma value; |
5907e628 | 1027 | |
7a9823f1 RS |
1028 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1029 | if (value >= 0xffffff00u) | |
5907e628 | 1030 | { |
bc7eab72 | 1031 | unsigned char code; |
ca9a79a1 | 1032 | unsigned char temp_code; |
5907e628 | 1033 | |
bc7eab72 | 1034 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1035 | etc. */ |
bc7eab72 KH |
1036 | elf_section_data (sec)->relocs = internal_relocs; |
1037 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1038 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1039 | |
bc7eab72 KH |
1040 | /* Get the opcode. */ |
1041 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1042 | |
630a7b0a KH |
1043 | /* All instructions with R_H8_DIR16A8 start with |
1044 | 0x6a. */ | |
bc7eab72 | 1045 | if (code != 0x6a) |
5907e628 JL |
1046 | abort (); |
1047 | ||
ca9a79a1 | 1048 | temp_code = code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
630a7b0a KH |
1049 | /* If this is a mov.b instruction, clear the lower |
1050 | nibble, which contains the source/destination | |
1051 | register number. */ | |
ca9a79a1 NC |
1052 | if ((temp_code & 0x10) != 0x10) |
1053 | temp_code &= 0xf0; | |
5907e628 | 1054 | |
ca9a79a1 NC |
1055 | switch (temp_code) |
1056 | { | |
1057 | case 0x00: | |
630a7b0a | 1058 | /* This is mov.b @aa:16,Rd. */ |
ca9a79a1 NC |
1059 | bfd_put_8 (abfd, (code & 0xf) | 0x20, |
1060 | contents + irel->r_offset - 2); | |
1061 | break; | |
1062 | case 0x80: | |
630a7b0a | 1063 | /* This is mov.b Rs,@aa:16. */ |
ca9a79a1 NC |
1064 | bfd_put_8 (abfd, (code & 0xf) | 0x30, |
1065 | contents + irel->r_offset - 2); | |
1066 | break; | |
1067 | case 0x18: | |
630a7b0a KH |
1068 | /* This is a bit-maniputation instruction that |
1069 | stores one bit into memory, one of "bclr", | |
1070 | "bist", "bnot", "bset", and "bst". */ | |
ca9a79a1 NC |
1071 | bfd_put_8 (abfd, 0x7f, contents + irel->r_offset - 2); |
1072 | break; | |
1073 | case 0x10: | |
630a7b0a KH |
1074 | /* This is a bit-maniputation instruction that |
1075 | loads one bit from memory, one of "band", | |
1076 | "biand", "bild", "bior", "bixor", "bld", "bor", | |
1077 | "btst", and "bxor". */ | |
ca9a79a1 NC |
1078 | bfd_put_8 (abfd, 0x7e, contents + irel->r_offset - 2); |
1079 | break; | |
1080 | default: | |
1081 | abort (); | |
1082 | } | |
5907e628 | 1083 | |
bc7eab72 KH |
1084 | /* Fix the relocation's type. */ |
1085 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 JL |
1086 | R_H8_DIR8); |
1087 | ||
8c17da6e NC |
1088 | /* Move the relocation. */ |
1089 | irel->r_offset--; | |
1090 | ||
bc7eab72 KH |
1091 | /* Delete two bytes of data. */ |
1092 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1093 | irel->r_offset + 1, 2)) |
1094 | goto error_return; | |
1095 | ||
bc7eab72 | 1096 | /* That will change things, so, we should relax again. |
5907e628 | 1097 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1098 | *again = TRUE; |
5907e628 JL |
1099 | } |
1100 | break; | |
1101 | } | |
1102 | ||
630a7b0a KH |
1103 | /* This is a 24-bit absolute address in one of the following |
1104 | instructions: | |
1105 | ||
1106 | "band", "bclr", "biand", "bild", "bior", "bist", "bixor", | |
1107 | "bld", "bnot", "bor", "bset", "bst", "btst", "bxor", and | |
1108 | "mov.b" | |
1109 | ||
1110 | We may relax this into an 8-bit absolute address if it's in | |
1111 | the right range. */ | |
5907e628 JL |
1112 | case R_H8_DIR24A8: |
1113 | { | |
7a9823f1 | 1114 | bfd_vma value; |
5907e628 | 1115 | |
7a9823f1 RS |
1116 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1117 | if (value >= 0xffffff00u) | |
5907e628 | 1118 | { |
bc7eab72 | 1119 | unsigned char code; |
ca9a79a1 | 1120 | unsigned char temp_code; |
5907e628 | 1121 | |
bc7eab72 | 1122 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1123 | etc. */ |
bc7eab72 KH |
1124 | elf_section_data (sec)->relocs = internal_relocs; |
1125 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1126 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1127 | |
bc7eab72 KH |
1128 | /* Get the opcode. */ |
1129 | code = bfd_get_8 (abfd, contents + irel->r_offset - 2); | |
5907e628 | 1130 | |
630a7b0a KH |
1131 | /* All instructions with R_H8_DIR24A8 start with |
1132 | 0x6a. */ | |
bc7eab72 | 1133 | if (code != 0x6a) |
5907e628 JL |
1134 | abort (); |
1135 | ||
ca9a79a1 NC |
1136 | temp_code = code = bfd_get_8 (abfd, contents + irel->r_offset - 1); |
1137 | ||
630a7b0a KH |
1138 | /* If this is a mov.b instruction, clear the lower |
1139 | nibble, which contains the source/destination | |
1140 | register number. */ | |
ca9a79a1 NC |
1141 | if ((temp_code & 0x30) != 0x30) |
1142 | temp_code &= 0xf0; | |
5907e628 | 1143 | |
ca9a79a1 | 1144 | switch (temp_code) |
03d14457 | 1145 | { |
7a9823f1 | 1146 | case 0x20: |
630a7b0a | 1147 | /* This is mov.b @aa:24/32,Rd. */ |
03d14457 NC |
1148 | bfd_put_8 (abfd, (code & 0xf) | 0x20, |
1149 | contents + irel->r_offset - 2); | |
1150 | break; | |
7a9823f1 | 1151 | case 0xa0: |
630a7b0a | 1152 | /* This is mov.b Rs,@aa:24/32. */ |
03d14457 NC |
1153 | bfd_put_8 (abfd, (code & 0xf) | 0x30, |
1154 | contents + irel->r_offset - 2); | |
1155 | break; | |
ca9a79a1 | 1156 | case 0x38: |
630a7b0a KH |
1157 | /* This is a bit-maniputation instruction that |
1158 | stores one bit into memory, one of "bclr", | |
1159 | "bist", "bnot", "bset", and "bst". */ | |
ca9a79a1 NC |
1160 | bfd_put_8 (abfd, 0x7f, contents + irel->r_offset - 2); |
1161 | break; | |
1162 | case 0x30: | |
630a7b0a KH |
1163 | /* This is a bit-maniputation instruction that |
1164 | loads one bit from memory, one of "band", | |
1165 | "biand", "bild", "bior", "bixor", "bld", "bor", | |
1166 | "btst", and "bxor". */ | |
ca9a79a1 NC |
1167 | bfd_put_8 (abfd, 0x7e, contents + irel->r_offset - 2); |
1168 | break; | |
03d14457 | 1169 | default: |
ca9a79a1 | 1170 | abort(); |
03d14457 NC |
1171 | } |
1172 | ||
bc7eab72 KH |
1173 | /* Fix the relocation's type. */ |
1174 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5907e628 | 1175 | R_H8_DIR8); |
7a9823f1 | 1176 | irel->r_offset--; |
5907e628 | 1177 | |
bc7eab72 | 1178 | /* Delete two bytes of data. */ |
7a9823f1 RS |
1179 | if (!elf32_h8_relax_delete_bytes (abfd, sec, |
1180 | irel->r_offset + 1, 4)) | |
5907e628 JL |
1181 | goto error_return; |
1182 | ||
bc7eab72 | 1183 | /* That will change things, so, we should relax again. |
5907e628 | 1184 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1185 | *again = TRUE; |
7a9823f1 | 1186 | break; |
5907e628 JL |
1187 | } |
1188 | } | |
1189 | ||
7e89635a KH |
1190 | /* Fall through. */ |
1191 | ||
1192 | /* This is a 24-/32-bit absolute address in one of the | |
1193 | following instructions: | |
1194 | ||
1195 | "band", "bclr", "biand", "bild", "bior", "bist", | |
1196 | "bixor", "bld", "bnot", "bor", "bset", "bst", "btst", | |
3255318a | 1197 | "bxor", "ldc.w", "stc.w" and "mov.[bwl]" |
5907e628 | 1198 | |
7e89635a KH |
1199 | We may relax this into an 16-bit absolute address if it's |
1200 | in the right range. */ | |
5907e628 JL |
1201 | case R_H8_DIR32A16: |
1202 | { | |
7a9823f1 | 1203 | bfd_vma value; |
5907e628 | 1204 | |
7a9823f1 RS |
1205 | value = bfd_h8300_pad_address (abfd, symval + irel->r_addend); |
1206 | if (value <= 0x7fff || value >= 0xffff8000u) | |
5907e628 | 1207 | { |
bc7eab72 | 1208 | unsigned char code; |
5907e628 | 1209 | |
bc7eab72 | 1210 | /* Note that we've changed the relocs, section contents, |
5907e628 | 1211 | etc. */ |
bc7eab72 KH |
1212 | elf_section_data (sec)->relocs = internal_relocs; |
1213 | elf_section_data (sec)->this_hdr.contents = contents; | |
6cdc0ccc | 1214 | symtab_hdr->contents = (unsigned char *) isymbuf; |
5907e628 | 1215 | |
bc7eab72 KH |
1216 | /* Get the opcode. */ |
1217 | code = bfd_get_8 (abfd, contents + irel->r_offset - 1); | |
5907e628 | 1218 | |
7e89635a KH |
1219 | /* Fix the opcode. For all the instructions that |
1220 | belong to this relaxation, we simply need to turn | |
1221 | off bit 0x20 in the previous byte. */ | |
bc7eab72 | 1222 | code &= ~0x20; |
5907e628 | 1223 | |
bc7eab72 | 1224 | bfd_put_8 (abfd, code, contents + irel->r_offset - 1); |
5907e628 | 1225 | |
bc7eab72 KH |
1226 | /* Fix the relocation's type. */ |
1227 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
8c17da6e | 1228 | R_H8_DIR16); |
5907e628 | 1229 | |
bc7eab72 KH |
1230 | /* Delete two bytes of data. */ |
1231 | if (!elf32_h8_relax_delete_bytes (abfd, sec, | |
5907e628 JL |
1232 | irel->r_offset + 1, 2)) |
1233 | goto error_return; | |
1234 | ||
bc7eab72 | 1235 | /* That will change things, so, we should relax again. |
5907e628 | 1236 | Note that this is not required, and it may be slow. */ |
b34976b6 | 1237 | *again = TRUE; |
5907e628 JL |
1238 | } |
1239 | break; | |
1240 | } | |
1241 | ||
1242 | default: | |
1243 | break; | |
1244 | } | |
1245 | } | |
1246 | ||
6cdc0ccc AM |
1247 | if (isymbuf != NULL |
1248 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5907e628 | 1249 | { |
6cdc0ccc AM |
1250 | if (! link_info->keep_memory) |
1251 | free (isymbuf); | |
1252 | else | |
1253 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
5907e628 JL |
1254 | } |
1255 | ||
6cdc0ccc AM |
1256 | if (contents != NULL |
1257 | && elf_section_data (sec)->this_hdr.contents != contents) | |
5907e628 JL |
1258 | { |
1259 | if (! link_info->keep_memory) | |
6cdc0ccc | 1260 | free (contents); |
5907e628 JL |
1261 | else |
1262 | { | |
1263 | /* Cache the section contents for elf_link_input_bfd. */ | |
1264 | elf_section_data (sec)->this_hdr.contents = contents; | |
1265 | } | |
9ad5cbcf AM |
1266 | } |
1267 | ||
6cdc0ccc AM |
1268 | if (internal_relocs != NULL |
1269 | && elf_section_data (sec)->relocs != internal_relocs) | |
1270 | free (internal_relocs); | |
5907e628 | 1271 | |
b34976b6 | 1272 | return TRUE; |
5907e628 JL |
1273 | |
1274 | error_return: | |
6cdc0ccc AM |
1275 | if (isymbuf != NULL |
1276 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1277 | free (isymbuf); | |
1278 | if (contents != NULL | |
1279 | && elf_section_data (sec)->this_hdr.contents != contents) | |
1280 | free (contents); | |
1281 | if (internal_relocs != NULL | |
1282 | && elf_section_data (sec)->relocs != internal_relocs) | |
1283 | free (internal_relocs); | |
b34976b6 | 1284 | return FALSE; |
5907e628 JL |
1285 | } |
1286 | ||
1287 | /* Delete some bytes from a section while relaxing. */ | |
1288 | ||
b34976b6 | 1289 | static bfd_boolean |
c6baf75e | 1290 | elf32_h8_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count) |
5907e628 JL |
1291 | { |
1292 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1293 | unsigned int sec_shndx; |
5907e628 JL |
1294 | bfd_byte *contents; |
1295 | Elf_Internal_Rela *irel, *irelend; | |
1296 | Elf_Internal_Rela *irelalign; | |
6cdc0ccc AM |
1297 | Elf_Internal_Sym *isym; |
1298 | Elf_Internal_Sym *isymend; | |
5907e628 | 1299 | bfd_vma toaddr; |
9ad5cbcf AM |
1300 | struct elf_link_hash_entry **sym_hashes; |
1301 | struct elf_link_hash_entry **end_hashes; | |
1302 | unsigned int symcount; | |
5907e628 | 1303 | |
9ad5cbcf | 1304 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1305 | |
1306 | contents = elf_section_data (sec)->this_hdr.contents; | |
1307 | ||
1308 | /* The deletion must stop at the next ALIGN reloc for an aligment | |
1309 | power larger than the number of bytes we are deleting. */ | |
1310 | ||
1311 | irelalign = NULL; | |
eea6121a | 1312 | toaddr = sec->size; |
5907e628 JL |
1313 | |
1314 | irel = elf_section_data (sec)->relocs; | |
1315 | irelend = irel + sec->reloc_count; | |
1316 | ||
1317 | /* Actually delete the bytes. */ | |
dc810e39 AM |
1318 | memmove (contents + addr, contents + addr + count, |
1319 | (size_t) (toaddr - addr - count)); | |
eea6121a | 1320 | sec->size -= count; |
5907e628 JL |
1321 | |
1322 | /* Adjust all the relocs. */ | |
1323 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
1324 | { | |
1325 | /* Get the new reloc address. */ | |
1326 | if ((irel->r_offset > addr | |
1327 | && irel->r_offset < toaddr)) | |
1328 | irel->r_offset -= count; | |
1329 | } | |
1330 | ||
1331 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
1332 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1333 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1334 | isymend = isym + symtab_hdr->sh_info; | |
1335 | for (; isym < isymend; isym++) | |
5907e628 | 1336 | { |
6cdc0ccc AM |
1337 | if (isym->st_shndx == sec_shndx |
1338 | && isym->st_value > addr | |
1339 | && isym->st_value < toaddr) | |
1340 | isym->st_value -= count; | |
5907e628 JL |
1341 | } |
1342 | ||
1343 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1344 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1345 | - symtab_hdr->sh_info); | |
1346 | sym_hashes = elf_sym_hashes (abfd); | |
1347 | end_hashes = sym_hashes + symcount; | |
1348 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1349 | { |
9ad5cbcf AM |
1350 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1351 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1352 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1353 | && sym_hash->root.u.def.section == sec | |
1354 | && sym_hash->root.u.def.value > addr | |
1355 | && sym_hash->root.u.def.value < toaddr) | |
5907e628 | 1356 | { |
9ad5cbcf | 1357 | sym_hash->root.u.def.value -= count; |
5907e628 JL |
1358 | } |
1359 | } | |
1360 | ||
b34976b6 | 1361 | return TRUE; |
5907e628 JL |
1362 | } |
1363 | ||
b34976b6 AM |
1364 | /* Return TRUE if a symbol exists at the given address, else return |
1365 | FALSE. */ | |
1366 | static bfd_boolean | |
c6baf75e | 1367 | elf32_h8_symbol_address_p (bfd *abfd, asection *sec, bfd_vma addr) |
5907e628 JL |
1368 | { |
1369 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 1370 | unsigned int sec_shndx; |
6cdc0ccc AM |
1371 | Elf_Internal_Sym *isym; |
1372 | Elf_Internal_Sym *isymend; | |
9ad5cbcf AM |
1373 | struct elf_link_hash_entry **sym_hashes; |
1374 | struct elf_link_hash_entry **end_hashes; | |
1375 | unsigned int symcount; | |
5907e628 | 1376 | |
9ad5cbcf | 1377 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
5907e628 JL |
1378 | |
1379 | /* Examine all the symbols. */ | |
9ad5cbcf | 1380 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
6cdc0ccc AM |
1381 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; |
1382 | isymend = isym + symtab_hdr->sh_info; | |
1383 | for (; isym < isymend; isym++) | |
5907e628 | 1384 | { |
6cdc0ccc AM |
1385 | if (isym->st_shndx == sec_shndx |
1386 | && isym->st_value == addr) | |
b34976b6 | 1387 | return TRUE; |
5907e628 JL |
1388 | } |
1389 | ||
9ad5cbcf AM |
1390 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1391 | - symtab_hdr->sh_info); | |
1392 | sym_hashes = elf_sym_hashes (abfd); | |
1393 | end_hashes = sym_hashes + symcount; | |
1394 | for (; sym_hashes < end_hashes; sym_hashes++) | |
5907e628 | 1395 | { |
9ad5cbcf AM |
1396 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1397 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1398 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1399 | && sym_hash->root.u.def.section == sec | |
1400 | && sym_hash->root.u.def.value == addr) | |
b34976b6 | 1401 | return TRUE; |
5907e628 | 1402 | } |
9ad5cbcf | 1403 | |
b34976b6 | 1404 | return FALSE; |
5907e628 JL |
1405 | } |
1406 | ||
1407 | /* This is a version of bfd_generic_get_relocated_section_contents | |
1408 | which uses elf32_h8_relocate_section. */ | |
1409 | ||
1410 | static bfd_byte * | |
c6baf75e RS |
1411 | elf32_h8_get_relocated_section_contents (bfd *output_bfd, |
1412 | struct bfd_link_info *link_info, | |
1413 | struct bfd_link_order *link_order, | |
1414 | bfd_byte *data, | |
1415 | bfd_boolean relocatable, | |
1416 | asymbol **symbols) | |
5907e628 JL |
1417 | { |
1418 | Elf_Internal_Shdr *symtab_hdr; | |
1419 | asection *input_section = link_order->u.indirect.section; | |
1420 | bfd *input_bfd = input_section->owner; | |
1421 | asection **sections = NULL; | |
1422 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 1423 | Elf_Internal_Sym *isymbuf = NULL; |
5907e628 JL |
1424 | |
1425 | /* We only need to handle the case of relaxing, or of having a | |
1426 | particular set of section contents, specially. */ | |
1049f94e | 1427 | if (relocatable |
5907e628 JL |
1428 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
1429 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
1430 | link_order, data, | |
1049f94e | 1431 | relocatable, |
5907e628 JL |
1432 | symbols); |
1433 | ||
1434 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1435 | ||
1436 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
eea6121a | 1437 | (size_t) input_section->size); |
5907e628 JL |
1438 | |
1439 | if ((input_section->flags & SEC_RELOC) != 0 | |
1440 | && input_section->reloc_count > 0) | |
1441 | { | |
5907e628 | 1442 | asection **secpp; |
6cdc0ccc | 1443 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 1444 | bfd_size_type amt; |
5907e628 | 1445 | |
45d6a902 | 1446 | internal_relocs = (_bfd_elf_link_read_relocs |
5907e628 | 1447 | (input_bfd, input_section, (PTR) NULL, |
b34976b6 | 1448 | (Elf_Internal_Rela *) NULL, FALSE)); |
5907e628 JL |
1449 | if (internal_relocs == NULL) |
1450 | goto error_return; | |
1451 | ||
6cdc0ccc AM |
1452 | if (symtab_hdr->sh_info != 0) |
1453 | { | |
1454 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1455 | if (isymbuf == NULL) | |
1456 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
1457 | symtab_hdr->sh_info, 0, | |
1458 | NULL, NULL, NULL); | |
1459 | if (isymbuf == NULL) | |
1460 | goto error_return; | |
1461 | } | |
5907e628 | 1462 | |
9ad5cbcf AM |
1463 | amt = symtab_hdr->sh_info; |
1464 | amt *= sizeof (asection *); | |
1465 | sections = (asection **) bfd_malloc (amt); | |
1466 | if (sections == NULL && amt != 0) | |
5907e628 JL |
1467 | goto error_return; |
1468 | ||
6cdc0ccc AM |
1469 | isymend = isymbuf + symtab_hdr->sh_info; |
1470 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
5907e628 JL |
1471 | { |
1472 | asection *isec; | |
1473 | ||
6cdc0ccc | 1474 | if (isym->st_shndx == SHN_UNDEF) |
5907e628 | 1475 | isec = bfd_und_section_ptr; |
6cdc0ccc | 1476 | else if (isym->st_shndx == SHN_ABS) |
5907e628 | 1477 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 1478 | else if (isym->st_shndx == SHN_COMMON) |
5907e628 JL |
1479 | isec = bfd_com_section_ptr; |
1480 | else | |
6cdc0ccc | 1481 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
5907e628 JL |
1482 | |
1483 | *secpp = isec; | |
1484 | } | |
1485 | ||
1486 | if (! elf32_h8_relocate_section (output_bfd, link_info, input_bfd, | |
1487 | input_section, data, internal_relocs, | |
6cdc0ccc | 1488 | isymbuf, sections)) |
5907e628 JL |
1489 | goto error_return; |
1490 | ||
1491 | if (sections != NULL) | |
1492 | free (sections); | |
6cdc0ccc AM |
1493 | if (isymbuf != NULL |
1494 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1495 | free (isymbuf); | |
1496 | if (elf_section_data (input_section)->relocs != internal_relocs) | |
5907e628 | 1497 | free (internal_relocs); |
5907e628 JL |
1498 | } |
1499 | ||
1500 | return data; | |
1501 | ||
1502 | error_return: | |
5907e628 JL |
1503 | if (sections != NULL) |
1504 | free (sections); | |
6cdc0ccc AM |
1505 | if (isymbuf != NULL |
1506 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
1507 | free (isymbuf); | |
1508 | if (internal_relocs != NULL | |
1509 | && elf_section_data (input_section)->relocs != internal_relocs) | |
1510 | free (internal_relocs); | |
5907e628 JL |
1511 | return NULL; |
1512 | } | |
1513 | ||
0a83638b | 1514 | |
e01b0e69 JR |
1515 | #define TARGET_BIG_SYM bfd_elf32_h8300_vec |
1516 | #define TARGET_BIG_NAME "elf32-h8300" | |
1517 | #define ELF_ARCH bfd_arch_h8300 | |
1518 | #define ELF_MACHINE_CODE EM_H8_300 | |
1519 | #define ELF_MAXPAGESIZE 0x1 | |
1520 | #define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup | |
157090f7 | 1521 | #define bfd_elf32_bfd_reloc_name_lookup elf32_h8_reloc_name_lookup |
e01b0e69 JR |
1522 | #define elf_info_to_howto elf32_h8_info_to_howto |
1523 | #define elf_info_to_howto_rel elf32_h8_info_to_howto_rel | |
1524 | ||
0a83638b JL |
1525 | /* So we can set/examine bits in e_flags to get the specific |
1526 | H8 architecture in use. */ | |
1527 | #define elf_backend_final_write_processing \ | |
1528 | elf32_h8_final_write_processing | |
1529 | #define elf_backend_object_p \ | |
1530 | elf32_h8_object_p | |
1531 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
1532 | elf32_h8_merge_private_bfd_data | |
1533 | ||
e01b0e69 JR |
1534 | /* ??? when elf_backend_relocate_section is not defined, elf32-target.h |
1535 | defaults to using _bfd_generic_link_hash_table_create, but | |
c152c796 | 1536 | bfd_elf_size_dynamic_sections uses |
e01b0e69 JR |
1537 | dynobj = elf_hash_table (info)->dynobj; |
1538 | and thus requires an elf hash table. */ | |
1539 | #define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create | |
1540 | ||
5e47149d JL |
1541 | /* Use an H8 specific linker, not the ELF generic linker. */ |
1542 | #define elf_backend_relocate_section elf32_h8_relocate_section | |
f0fe0e16 | 1543 | #define elf_backend_rela_normal 1 |
2627de83 | 1544 | #define elf_backend_can_gc_sections 1 |
5e47149d | 1545 | |
5907e628 JL |
1546 | /* And relaxing stuff. */ |
1547 | #define bfd_elf32_bfd_relax_section elf32_h8_relax_section | |
1548 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
1549 | elf32_h8_get_relocated_section_contents | |
1550 | ||
1551 | ||
e01b0e69 | 1552 | #include "elf32-target.h" |