Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* V850-specific support for 32-bit ELF |
b2a8e766 | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
7898deda | 3 | Free Software Foundation, Inc. |
252b5132 | 4 | |
86aba9db | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
86aba9db 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. | |
252b5132 | 11 | |
86aba9db 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. | |
252b5132 | 16 | |
86aba9db 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. */ | |
252b5132 | 20 | |
252b5132 | 21 | /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char |
86aba9db | 22 | dependencies. As is the gas & simulator code for the v850. */ |
252b5132 | 23 | |
252b5132 RH |
24 | #include "bfd.h" |
25 | #include "sysdep.h" | |
26 | #include "bfdlink.h" | |
27 | #include "libbfd.h" | |
28 | #include "elf-bfd.h" | |
29 | #include "elf/v850.h" | |
e12dd2ea | 30 | #include "libiberty.h" |
252b5132 | 31 | |
e12dd2ea | 32 | /* Sign-extend a 24-bit number. */ |
dc810e39 | 33 | #define SEXT24(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000) |
435b1e90 | 34 | |
252b5132 RH |
35 | static reloc_howto_type *v850_elf_reloc_type_lookup |
36 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
37 | static void v850_elf_info_to_howto_rel | |
947216bf | 38 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
252b5132 | 39 | static void v850_elf_info_to_howto_rela |
947216bf | 40 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
252b5132 RH |
41 | static bfd_reloc_status_type v850_elf_reloc |
42 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
b34976b6 | 43 | static bfd_boolean v850_elf_is_local_label_name |
252b5132 | 44 | PARAMS ((bfd *, const char *)); |
b34976b6 | 45 | static bfd_boolean v850_elf_relocate_section |
252b5132 RH |
46 | PARAMS((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
47 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
48 | static bfd_reloc_status_type v850_elf_perform_relocation | |
dc810e39 | 49 | PARAMS ((bfd *, unsigned int, bfd_vma, bfd_byte *)); |
b34976b6 | 50 | static bfd_boolean v850_elf_check_relocs |
252b5132 RH |
51 | PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *)); |
52 | static void remember_hi16s_reloc | |
53 | PARAMS ((bfd *, bfd_vma, bfd_byte *)); | |
54 | static bfd_byte * find_remembered_hi16s_reloc | |
b34976b6 | 55 | PARAMS ((bfd_vma, bfd_boolean *)); |
252b5132 RH |
56 | static bfd_reloc_status_type v850_elf_final_link_relocate |
57 | PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *, bfd_byte *, bfd_vma, | |
58 | bfd_vma, bfd_vma, struct bfd_link_info *, asection *, int)); | |
b34976b6 | 59 | static bfd_boolean v850_elf_object_p |
252b5132 | 60 | PARAMS ((bfd *)); |
b34976b6 | 61 | static bfd_boolean v850_elf_fake_sections |
947216bf | 62 | PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); |
252b5132 | 63 | static void v850_elf_final_write_processing |
b34976b6 AM |
64 | PARAMS ((bfd *, bfd_boolean)); |
65 | static bfd_boolean v850_elf_set_private_flags | |
252b5132 | 66 | PARAMS ((bfd *, flagword)); |
b34976b6 | 67 | static bfd_boolean v850_elf_merge_private_bfd_data |
252b5132 | 68 | PARAMS ((bfd *, bfd *)); |
b34976b6 | 69 | static bfd_boolean v850_elf_print_private_bfd_data |
252b5132 | 70 | PARAMS ((bfd *, PTR)); |
b34976b6 | 71 | static bfd_boolean v850_elf_section_from_bfd_section |
af746e92 | 72 | PARAMS ((bfd *, asection *, int *)); |
252b5132 RH |
73 | static void v850_elf_symbol_processing |
74 | PARAMS ((bfd *, asymbol *)); | |
b34976b6 | 75 | static bfd_boolean v850_elf_add_symbol_hook |
555cd476 | 76 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Sym *, |
252b5132 | 77 | const char **, flagword *, asection **, bfd_vma *)); |
b34976b6 | 78 | static bfd_boolean v850_elf_link_output_symbol_hook |
754021d0 AM |
79 | PARAMS ((struct bfd_link_info *, const char *, Elf_Internal_Sym *, |
80 | asection *, struct elf_link_hash_entry *)); | |
b34976b6 | 81 | static bfd_boolean v850_elf_section_from_shdr |
90937f86 | 82 | PARAMS ((bfd *, Elf_Internal_Shdr *, const char *)); |
b34976b6 | 83 | static bfd_boolean v850_elf_gc_sweep_hook |
e12dd2ea NC |
84 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
85 | const Elf_Internal_Rela *)); | |
86 | static asection * v850_elf_gc_mark_hook | |
1e2f5b6e | 87 | PARAMS ((asection *, struct bfd_link_info *, |
e12dd2ea NC |
88 | Elf_Internal_Rela *, struct elf_link_hash_entry *, |
89 | Elf_Internal_Sym *)); | |
86aba9db NC |
90 | static bfd_reloc_status_type v850_elf_ignore_reloc |
91 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
b34976b6 | 92 | static bfd_boolean v850_elf_relax_delete_bytes |
86aba9db | 93 | PARAMS ((bfd *, asection *, bfd_vma, bfd_vma, int)); |
b34976b6 AM |
94 | static bfd_boolean v850_elf_relax_section |
95 | PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); | |
e12dd2ea NC |
96 | |
97 | /* Note: It is REQUIRED that the 'type' value of each entry | |
98 | in this array match the index of the entry in the array. */ | |
252b5132 RH |
99 | static reloc_howto_type v850_elf_howto_table[] = |
100 | { | |
101 | /* This reloc does nothing. */ | |
102 | HOWTO (R_V850_NONE, /* type */ | |
103 | 0, /* rightshift */ | |
104 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
105 | 32, /* bitsize */ | |
b34976b6 | 106 | FALSE, /* pc_relative */ |
252b5132 RH |
107 | 0, /* bitpos */ |
108 | complain_overflow_bitfield, /* complain_on_overflow */ | |
109 | bfd_elf_generic_reloc, /* special_function */ | |
110 | "R_V850_NONE", /* name */ | |
b34976b6 | 111 | FALSE, /* partial_inplace */ |
252b5132 RH |
112 | 0, /* src_mask */ |
113 | 0, /* dst_mask */ | |
b34976b6 | 114 | FALSE), /* pcrel_offset */ |
252b5132 | 115 | |
435b1e90 | 116 | /* A PC relative 9 bit branch. */ |
252b5132 RH |
117 | HOWTO (R_V850_9_PCREL, /* type */ |
118 | 2, /* rightshift */ | |
119 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
120 | 26, /* bitsize */ | |
b34976b6 | 121 | TRUE, /* pc_relative */ |
252b5132 RH |
122 | 0, /* bitpos */ |
123 | complain_overflow_bitfield, /* complain_on_overflow */ | |
124 | v850_elf_reloc, /* special_function */ | |
125 | "R_V850_9_PCREL", /* name */ | |
b34976b6 | 126 | FALSE, /* partial_inplace */ |
252b5132 RH |
127 | 0x00ffffff, /* src_mask */ |
128 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 129 | TRUE), /* pcrel_offset */ |
252b5132 | 130 | |
435b1e90 | 131 | /* A PC relative 22 bit branch. */ |
252b5132 RH |
132 | HOWTO (R_V850_22_PCREL, /* type */ |
133 | 2, /* rightshift */ | |
134 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
135 | 22, /* bitsize */ | |
b34976b6 | 136 | TRUE, /* pc_relative */ |
252b5132 RH |
137 | 7, /* bitpos */ |
138 | complain_overflow_signed, /* complain_on_overflow */ | |
139 | v850_elf_reloc, /* special_function */ | |
140 | "R_V850_22_PCREL", /* name */ | |
b34976b6 | 141 | FALSE, /* partial_inplace */ |
252b5132 RH |
142 | 0x07ffff80, /* src_mask */ |
143 | 0x07ffff80, /* dst_mask */ | |
b34976b6 | 144 | TRUE), /* pcrel_offset */ |
252b5132 RH |
145 | |
146 | /* High 16 bits of symbol value. */ | |
147 | HOWTO (R_V850_HI16_S, /* type */ | |
148 | 0, /* rightshift */ | |
149 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
150 | 16, /* bitsize */ | |
b34976b6 | 151 | FALSE, /* pc_relative */ |
252b5132 RH |
152 | 0, /* bitpos */ |
153 | complain_overflow_dont, /* complain_on_overflow */ | |
154 | v850_elf_reloc, /* special_function */ | |
155 | "R_V850_HI16_S", /* name */ | |
b34976b6 | 156 | FALSE, /* partial_inplace */ |
252b5132 RH |
157 | 0xffff, /* src_mask */ |
158 | 0xffff, /* dst_mask */ | |
b34976b6 | 159 | FALSE), /* pcrel_offset */ |
252b5132 RH |
160 | |
161 | /* High 16 bits of symbol value. */ | |
162 | HOWTO (R_V850_HI16, /* type */ | |
163 | 0, /* rightshift */ | |
164 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
165 | 16, /* bitsize */ | |
b34976b6 | 166 | FALSE, /* pc_relative */ |
252b5132 RH |
167 | 0, /* bitpos */ |
168 | complain_overflow_dont, /* complain_on_overflow */ | |
169 | v850_elf_reloc, /* special_function */ | |
170 | "R_V850_HI16", /* name */ | |
b34976b6 | 171 | FALSE, /* partial_inplace */ |
252b5132 RH |
172 | 0xffff, /* src_mask */ |
173 | 0xffff, /* dst_mask */ | |
b34976b6 | 174 | FALSE), /* pcrel_offset */ |
252b5132 RH |
175 | |
176 | /* Low 16 bits of symbol value. */ | |
177 | HOWTO (R_V850_LO16, /* type */ | |
178 | 0, /* rightshift */ | |
179 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
180 | 16, /* bitsize */ | |
b34976b6 | 181 | FALSE, /* pc_relative */ |
252b5132 RH |
182 | 0, /* bitpos */ |
183 | complain_overflow_dont, /* complain_on_overflow */ | |
184 | v850_elf_reloc, /* special_function */ | |
185 | "R_V850_LO16", /* name */ | |
b34976b6 | 186 | FALSE, /* partial_inplace */ |
252b5132 RH |
187 | 0xffff, /* src_mask */ |
188 | 0xffff, /* dst_mask */ | |
b34976b6 | 189 | FALSE), /* pcrel_offset */ |
252b5132 RH |
190 | |
191 | /* Simple 32bit reloc. */ | |
e30ddb24 | 192 | HOWTO (R_V850_ABS32, /* type */ |
252b5132 RH |
193 | 0, /* rightshift */ |
194 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
195 | 32, /* bitsize */ | |
b34976b6 | 196 | FALSE, /* pc_relative */ |
252b5132 RH |
197 | 0, /* bitpos */ |
198 | complain_overflow_dont, /* complain_on_overflow */ | |
199 | v850_elf_reloc, /* special_function */ | |
e30ddb24 | 200 | "R_V850_ABS32", /* name */ |
b34976b6 | 201 | FALSE, /* partial_inplace */ |
252b5132 RH |
202 | 0xffffffff, /* src_mask */ |
203 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 204 | FALSE), /* pcrel_offset */ |
252b5132 RH |
205 | |
206 | /* Simple 16bit reloc. */ | |
207 | HOWTO (R_V850_16, /* type */ | |
208 | 0, /* rightshift */ | |
209 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
210 | 16, /* bitsize */ | |
b34976b6 | 211 | FALSE, /* pc_relative */ |
252b5132 RH |
212 | 0, /* bitpos */ |
213 | complain_overflow_dont, /* complain_on_overflow */ | |
214 | bfd_elf_generic_reloc, /* special_function */ | |
215 | "R_V850_16", /* name */ | |
b34976b6 | 216 | FALSE, /* partial_inplace */ |
252b5132 RH |
217 | 0xffff, /* src_mask */ |
218 | 0xffff, /* dst_mask */ | |
b34976b6 | 219 | FALSE), /* pcrel_offset */ |
252b5132 RH |
220 | |
221 | /* Simple 8bit reloc. */ | |
222 | HOWTO (R_V850_8, /* type */ | |
223 | 0, /* rightshift */ | |
224 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
225 | 8, /* bitsize */ | |
b34976b6 | 226 | FALSE, /* pc_relative */ |
252b5132 RH |
227 | 0, /* bitpos */ |
228 | complain_overflow_dont, /* complain_on_overflow */ | |
229 | bfd_elf_generic_reloc, /* special_function */ | |
230 | "R_V850_8", /* name */ | |
b34976b6 | 231 | FALSE, /* partial_inplace */ |
252b5132 RH |
232 | 0xff, /* src_mask */ |
233 | 0xff, /* dst_mask */ | |
b34976b6 | 234 | FALSE), /* pcrel_offset */ |
252b5132 RH |
235 | |
236 | /* 16 bit offset from the short data area pointer. */ | |
237 | HOWTO (R_V850_SDA_16_16_OFFSET, /* type */ | |
238 | 0, /* rightshift */ | |
239 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
240 | 16, /* bitsize */ | |
b34976b6 | 241 | FALSE, /* pc_relative */ |
252b5132 RH |
242 | 0, /* bitpos */ |
243 | complain_overflow_dont, /* complain_on_overflow */ | |
244 | v850_elf_reloc, /* special_function */ | |
245 | "R_V850_SDA_16_16_OFFSET", /* name */ | |
b34976b6 | 246 | FALSE, /* partial_inplace */ |
252b5132 RH |
247 | 0xffff, /* src_mask */ |
248 | 0xffff, /* dst_mask */ | |
b34976b6 | 249 | FALSE), /* pcrel_offset */ |
252b5132 RH |
250 | |
251 | /* 15 bit offset from the short data area pointer. */ | |
252 | HOWTO (R_V850_SDA_15_16_OFFSET, /* type */ | |
253 | 1, /* rightshift */ | |
254 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
255 | 16, /* bitsize */ | |
b34976b6 | 256 | FALSE, /* pc_relative */ |
252b5132 RH |
257 | 1, /* bitpos */ |
258 | complain_overflow_dont, /* complain_on_overflow */ | |
259 | v850_elf_reloc, /* special_function */ | |
260 | "R_V850_SDA_15_16_OFFSET", /* name */ | |
b34976b6 | 261 | FALSE, /* partial_inplace */ |
252b5132 RH |
262 | 0xfffe, /* src_mask */ |
263 | 0xfffe, /* dst_mask */ | |
b34976b6 | 264 | FALSE), /* pcrel_offset */ |
252b5132 RH |
265 | |
266 | /* 16 bit offset from the zero data area pointer. */ | |
267 | HOWTO (R_V850_ZDA_16_16_OFFSET, /* type */ | |
268 | 0, /* rightshift */ | |
269 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
270 | 16, /* bitsize */ | |
b34976b6 | 271 | FALSE, /* pc_relative */ |
252b5132 RH |
272 | 0, /* bitpos */ |
273 | complain_overflow_dont, /* complain_on_overflow */ | |
274 | v850_elf_reloc, /* special_function */ | |
275 | "R_V850_ZDA_16_16_OFFSET", /* name */ | |
b34976b6 | 276 | FALSE, /* partial_inplace */ |
252b5132 RH |
277 | 0xffff, /* src_mask */ |
278 | 0xffff, /* dst_mask */ | |
b34976b6 | 279 | FALSE), /* pcrel_offset */ |
252b5132 RH |
280 | |
281 | /* 15 bit offset from the zero data area pointer. */ | |
282 | HOWTO (R_V850_ZDA_15_16_OFFSET, /* type */ | |
283 | 1, /* rightshift */ | |
284 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
285 | 16, /* bitsize */ | |
b34976b6 | 286 | FALSE, /* pc_relative */ |
252b5132 RH |
287 | 1, /* bitpos */ |
288 | complain_overflow_dont, /* complain_on_overflow */ | |
289 | v850_elf_reloc, /* special_function */ | |
290 | "R_V850_ZDA_15_16_OFFSET", /* name */ | |
b34976b6 | 291 | FALSE, /* partial_inplace */ |
252b5132 RH |
292 | 0xfffe, /* src_mask */ |
293 | 0xfffe, /* dst_mask */ | |
b34976b6 | 294 | FALSE), /* pcrel_offset */ |
252b5132 RH |
295 | |
296 | /* 6 bit offset from the tiny data area pointer. */ | |
297 | HOWTO (R_V850_TDA_6_8_OFFSET, /* type */ | |
298 | 2, /* rightshift */ | |
299 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
300 | 8, /* bitsize */ | |
b34976b6 | 301 | FALSE, /* pc_relative */ |
252b5132 RH |
302 | 1, /* bitpos */ |
303 | complain_overflow_dont, /* complain_on_overflow */ | |
304 | v850_elf_reloc, /* special_function */ | |
305 | "R_V850_TDA_6_8_OFFSET", /* name */ | |
b34976b6 | 306 | FALSE, /* partial_inplace */ |
252b5132 RH |
307 | 0x7e, /* src_mask */ |
308 | 0x7e, /* dst_mask */ | |
b34976b6 | 309 | FALSE), /* pcrel_offset */ |
252b5132 RH |
310 | |
311 | /* 8 bit offset from the tiny data area pointer. */ | |
312 | HOWTO (R_V850_TDA_7_8_OFFSET, /* type */ | |
313 | 1, /* rightshift */ | |
314 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
315 | 8, /* bitsize */ | |
b34976b6 | 316 | FALSE, /* pc_relative */ |
252b5132 RH |
317 | 0, /* bitpos */ |
318 | complain_overflow_dont, /* complain_on_overflow */ | |
319 | v850_elf_reloc, /* special_function */ | |
320 | "R_V850_TDA_7_8_OFFSET", /* name */ | |
b34976b6 | 321 | FALSE, /* partial_inplace */ |
252b5132 RH |
322 | 0x7f, /* src_mask */ |
323 | 0x7f, /* dst_mask */ | |
b34976b6 | 324 | FALSE), /* pcrel_offset */ |
435b1e90 | 325 | |
252b5132 RH |
326 | /* 7 bit offset from the tiny data area pointer. */ |
327 | HOWTO (R_V850_TDA_7_7_OFFSET, /* type */ | |
328 | 0, /* rightshift */ | |
329 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
330 | 7, /* bitsize */ | |
b34976b6 | 331 | FALSE, /* pc_relative */ |
252b5132 RH |
332 | 0, /* bitpos */ |
333 | complain_overflow_dont, /* complain_on_overflow */ | |
334 | v850_elf_reloc, /* special_function */ | |
335 | "R_V850_TDA_7_7_OFFSET", /* name */ | |
b34976b6 | 336 | FALSE, /* partial_inplace */ |
252b5132 RH |
337 | 0x7f, /* src_mask */ |
338 | 0x7f, /* dst_mask */ | |
b34976b6 | 339 | FALSE), /* pcrel_offset */ |
252b5132 RH |
340 | |
341 | /* 16 bit offset from the tiny data area pointer! */ | |
342 | HOWTO (R_V850_TDA_16_16_OFFSET, /* type */ | |
343 | 0, /* rightshift */ | |
344 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
345 | 16, /* bitsize */ | |
b34976b6 | 346 | FALSE, /* pc_relative */ |
252b5132 RH |
347 | 0, /* bitpos */ |
348 | complain_overflow_dont, /* complain_on_overflow */ | |
349 | v850_elf_reloc, /* special_function */ | |
350 | "R_V850_TDA_16_16_OFFSET", /* name */ | |
b34976b6 | 351 | FALSE, /* partial_inplace */ |
252b5132 RH |
352 | 0xffff, /* src_mask */ |
353 | 0xfff, /* dst_mask */ | |
b34976b6 | 354 | FALSE), /* pcrel_offset */ |
252b5132 RH |
355 | |
356 | /* 5 bit offset from the tiny data area pointer. */ | |
357 | HOWTO (R_V850_TDA_4_5_OFFSET, /* type */ | |
358 | 1, /* rightshift */ | |
359 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
360 | 5, /* bitsize */ | |
b34976b6 | 361 | FALSE, /* pc_relative */ |
252b5132 RH |
362 | 0, /* bitpos */ |
363 | complain_overflow_dont, /* complain_on_overflow */ | |
364 | v850_elf_reloc, /* special_function */ | |
365 | "R_V850_TDA_4_5_OFFSET", /* name */ | |
b34976b6 | 366 | FALSE, /* partial_inplace */ |
252b5132 RH |
367 | 0x0f, /* src_mask */ |
368 | 0x0f, /* dst_mask */ | |
b34976b6 | 369 | FALSE), /* pcrel_offset */ |
252b5132 RH |
370 | |
371 | /* 4 bit offset from the tiny data area pointer. */ | |
372 | HOWTO (R_V850_TDA_4_4_OFFSET, /* type */ | |
373 | 0, /* rightshift */ | |
374 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
375 | 4, /* bitsize */ | |
b34976b6 | 376 | FALSE, /* pc_relative */ |
252b5132 RH |
377 | 0, /* bitpos */ |
378 | complain_overflow_dont, /* complain_on_overflow */ | |
379 | v850_elf_reloc, /* special_function */ | |
380 | "R_V850_TDA_4_4_OFFSET", /* name */ | |
b34976b6 | 381 | FALSE, /* partial_inplace */ |
252b5132 RH |
382 | 0x0f, /* src_mask */ |
383 | 0x0f, /* dst_mask */ | |
b34976b6 | 384 | FALSE), /* pcrel_offset */ |
252b5132 RH |
385 | |
386 | /* 16 bit offset from the short data area pointer. */ | |
387 | HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* type */ | |
388 | 0, /* rightshift */ | |
389 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
390 | 16, /* bitsize */ | |
b34976b6 | 391 | FALSE, /* pc_relative */ |
252b5132 RH |
392 | 0, /* bitpos */ |
393 | complain_overflow_dont, /* complain_on_overflow */ | |
394 | v850_elf_reloc, /* special_function */ | |
395 | "R_V850_SDA_16_16_SPLIT_OFFSET",/* name */ | |
b34976b6 | 396 | FALSE, /* partial_inplace */ |
252b5132 RH |
397 | 0xfffe0020, /* src_mask */ |
398 | 0xfffe0020, /* dst_mask */ | |
b34976b6 | 399 | FALSE), /* pcrel_offset */ |
252b5132 RH |
400 | |
401 | /* 16 bit offset from the zero data area pointer. */ | |
402 | HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* type */ | |
403 | 0, /* rightshift */ | |
404 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
405 | 16, /* bitsize */ | |
b34976b6 | 406 | FALSE, /* pc_relative */ |
252b5132 RH |
407 | 0, /* bitpos */ |
408 | complain_overflow_dont, /* complain_on_overflow */ | |
409 | v850_elf_reloc, /* special_function */ | |
410 | "R_V850_ZDA_16_16_SPLIT_OFFSET",/* name */ | |
b34976b6 | 411 | FALSE, /* partial_inplace */ |
252b5132 RH |
412 | 0xfffe0020, /* src_mask */ |
413 | 0xfffe0020, /* dst_mask */ | |
b34976b6 | 414 | FALSE), /* pcrel_offset */ |
252b5132 RH |
415 | |
416 | /* 6 bit offset from the call table base pointer. */ | |
417 | HOWTO (R_V850_CALLT_6_7_OFFSET, /* type */ | |
418 | 0, /* rightshift */ | |
419 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
420 | 7, /* bitsize */ | |
b34976b6 | 421 | FALSE, /* pc_relative */ |
252b5132 RH |
422 | 0, /* bitpos */ |
423 | complain_overflow_dont, /* complain_on_overflow */ | |
424 | v850_elf_reloc, /* special_function */ | |
425 | "R_V850_CALLT_6_7_OFFSET", /* name */ | |
b34976b6 | 426 | FALSE, /* partial_inplace */ |
252b5132 RH |
427 | 0x3f, /* src_mask */ |
428 | 0x3f, /* dst_mask */ | |
b34976b6 | 429 | FALSE), /* pcrel_offset */ |
252b5132 RH |
430 | |
431 | /* 16 bit offset from the call table base pointer. */ | |
432 | HOWTO (R_V850_CALLT_16_16_OFFSET, /* type */ | |
433 | 0, /* rightshift */ | |
434 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
435 | 16, /* bitsize */ | |
b34976b6 | 436 | FALSE, /* pc_relative */ |
252b5132 RH |
437 | 0, /* bitpos */ |
438 | complain_overflow_dont, /* complain_on_overflow */ | |
439 | v850_elf_reloc, /* special_function */ | |
440 | "R_V850_CALLT_16_16_OFFSET", /* name */ | |
b34976b6 | 441 | FALSE, /* partial_inplace */ |
252b5132 RH |
442 | 0xffff, /* src_mask */ |
443 | 0xffff, /* dst_mask */ | |
b34976b6 | 444 | FALSE), /* pcrel_offset */ |
252b5132 RH |
445 | |
446 | /* GNU extension to record C++ vtable hierarchy */ | |
447 | HOWTO (R_V850_GNU_VTINHERIT, /* type */ | |
448 | 0, /* rightshift */ | |
449 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
450 | 0, /* bitsize */ | |
b34976b6 | 451 | FALSE, /* pc_relative */ |
252b5132 RH |
452 | 0, /* bitpos */ |
453 | complain_overflow_dont, /* complain_on_overflow */ | |
454 | NULL, /* special_function */ | |
455 | "R_V850_GNU_VTINHERIT", /* name */ | |
b34976b6 | 456 | FALSE, /* partial_inplace */ |
252b5132 RH |
457 | 0, /* src_mask */ |
458 | 0, /* dst_mask */ | |
b34976b6 | 459 | FALSE), /* pcrel_offset */ |
252b5132 RH |
460 | |
461 | /* GNU extension to record C++ vtable member usage */ | |
462 | HOWTO (R_V850_GNU_VTENTRY, /* type */ | |
463 | 0, /* rightshift */ | |
464 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
465 | 0, /* bitsize */ | |
b34976b6 | 466 | FALSE, /* pc_relative */ |
252b5132 RH |
467 | 0, /* bitpos */ |
468 | complain_overflow_dont, /* complain_on_overflow */ | |
469 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
470 | "R_V850_GNU_VTENTRY", /* name */ | |
b34976b6 | 471 | FALSE, /* partial_inplace */ |
252b5132 RH |
472 | 0, /* src_mask */ |
473 | 0, /* dst_mask */ | |
b34976b6 | 474 | FALSE), /* pcrel_offset */ |
435b1e90 | 475 | |
86aba9db NC |
476 | /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall |
477 | pseudo-op when it finds a function call which can be relaxed. */ | |
478 | HOWTO (R_V850_LONGCALL, /* type */ | |
479 | 0, /* rightshift */ | |
480 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
481 | 32, /* bitsize */ | |
b34976b6 | 482 | TRUE, /* pc_relative */ |
86aba9db NC |
483 | 0, /* bitpos */ |
484 | complain_overflow_signed, /* complain_on_overflow */ | |
485 | v850_elf_ignore_reloc, /* special_function */ | |
486 | "R_V850_LONGCALL", /* name */ | |
b34976b6 | 487 | FALSE, /* partial_inplace */ |
86aba9db NC |
488 | 0, /* src_mask */ |
489 | 0, /* dst_mask */ | |
b34976b6 | 490 | TRUE), /* pcrel_offset */ |
86aba9db NC |
491 | |
492 | /* Indicates a .longjump pseudo-op. The compiler will generate a | |
493 | .longjump pseudo-op when it finds a branch which can be relaxed. */ | |
494 | HOWTO (R_V850_LONGJUMP, /* type */ | |
495 | 0, /* rightshift */ | |
496 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
497 | 32, /* bitsize */ | |
b34976b6 | 498 | TRUE, /* pc_relative */ |
86aba9db NC |
499 | 0, /* bitpos */ |
500 | complain_overflow_signed, /* complain_on_overflow */ | |
501 | v850_elf_ignore_reloc, /* special_function */ | |
502 | "R_V850_LONGJUMP", /* name */ | |
b34976b6 | 503 | FALSE, /* partial_inplace */ |
86aba9db NC |
504 | 0, /* src_mask */ |
505 | 0, /* dst_mask */ | |
b34976b6 | 506 | TRUE), /* pcrel_offset */ |
86aba9db NC |
507 | |
508 | HOWTO (R_V850_ALIGN, /* type */ | |
509 | 0, /* rightshift */ | |
510 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
511 | 0, /* bitsize */ | |
b34976b6 | 512 | FALSE, /* pc_relative */ |
86aba9db NC |
513 | 0, /* bitpos */ |
514 | complain_overflow_unsigned, /* complain_on_overflow */ | |
515 | v850_elf_ignore_reloc, /* special_function */ | |
516 | "R_V850_ALIGN", /* name */ | |
b34976b6 | 517 | FALSE, /* partial_inplace */ |
86aba9db NC |
518 | 0, /* src_mask */ |
519 | 0, /* dst_mask */ | |
b34976b6 | 520 | TRUE), /* pcrel_offset */ |
e30ddb24 NC |
521 | |
522 | /* Simple pc-relative 32bit reloc. */ | |
523 | HOWTO (R_V850_REL32, /* type */ | |
524 | 0, /* rightshift */ | |
525 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
526 | 32, /* bitsize */ | |
527 | TRUE, /* pc_relative */ | |
528 | 0, /* bitpos */ | |
529 | complain_overflow_dont, /* complain_on_overflow */ | |
530 | v850_elf_reloc, /* special_function */ | |
531 | "R_V850_REL32", /* name */ | |
532 | FALSE, /* partial_inplace */ | |
533 | 0xffffffff, /* src_mask */ | |
534 | 0xffffffff, /* dst_mask */ | |
535 | FALSE), /* pcrel_offset */ | |
1e50d24d RS |
536 | |
537 | /* An ld.bu version of R_V850_LO16. */ | |
538 | HOWTO (R_V850_LO16_SPLIT_OFFSET, /* type */ | |
539 | 0, /* rightshift */ | |
540 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
541 | 16, /* bitsize */ | |
542 | FALSE, /* pc_relative */ | |
543 | 0, /* bitpos */ | |
544 | complain_overflow_dont, /* complain_on_overflow */ | |
545 | v850_elf_reloc, /* special_function */ | |
546 | "R_V850_LO16_SPLIT_OFFSET", /* name */ | |
547 | FALSE, /* partial_inplace */ | |
548 | 0xfffe0020, /* src_mask */ | |
549 | 0xfffe0020, /* dst_mask */ | |
550 | FALSE), /* pcrel_offset */ | |
252b5132 RH |
551 | }; |
552 | ||
553 | /* Map BFD reloc types to V850 ELF reloc types. */ | |
554 | ||
555 | struct v850_elf_reloc_map | |
556 | { | |
557 | /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an | |
558 | unsigned char. */ | |
559 | bfd_reloc_code_real_type bfd_reloc_val; | |
917583ad | 560 | unsigned int elf_reloc_val; |
252b5132 RH |
561 | }; |
562 | ||
563 | static const struct v850_elf_reloc_map v850_elf_reloc_map[] = | |
564 | { | |
86aba9db NC |
565 | { BFD_RELOC_NONE, R_V850_NONE }, |
566 | { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL }, | |
567 | { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL }, | |
568 | { BFD_RELOC_HI16_S, R_V850_HI16_S }, | |
569 | { BFD_RELOC_HI16, R_V850_HI16 }, | |
570 | { BFD_RELOC_LO16, R_V850_LO16 }, | |
e30ddb24 NC |
571 | { BFD_RELOC_32, R_V850_ABS32 }, |
572 | { BFD_RELOC_32_PCREL, R_V850_REL32 }, | |
86aba9db NC |
573 | { BFD_RELOC_16, R_V850_16 }, |
574 | { BFD_RELOC_8, R_V850_8 }, | |
575 | { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET }, | |
576 | { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET }, | |
577 | { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET }, | |
578 | { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET }, | |
579 | { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET }, | |
580 | { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET }, | |
581 | { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET }, | |
582 | { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET }, | |
252b5132 RH |
583 | { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET }, |
584 | { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET }, | |
1e50d24d | 585 | { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET }, |
252b5132 RH |
586 | { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET }, |
587 | { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET }, | |
588 | { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET }, | |
589 | { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET }, | |
86aba9db NC |
590 | { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT }, |
591 | { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY }, | |
592 | { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL }, | |
593 | { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP }, | |
594 | { BFD_RELOC_V850_ALIGN, R_V850_ALIGN }, | |
252b5132 RH |
595 | |
596 | }; | |
252b5132 | 597 | \f |
e12dd2ea NC |
598 | /* Map a bfd relocation into the appropriate howto structure. */ |
599 | ||
252b5132 RH |
600 | static reloc_howto_type * |
601 | v850_elf_reloc_type_lookup (abfd, code) | |
b34976b6 AM |
602 | bfd *abfd ATTRIBUTE_UNUSED; |
603 | bfd_reloc_code_real_type code; | |
252b5132 RH |
604 | { |
605 | unsigned int i; | |
606 | ||
e12dd2ea NC |
607 | for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;) |
608 | if (v850_elf_reloc_map[i].bfd_reloc_val == code) | |
609 | { | |
917583ad | 610 | unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val; |
dc810e39 | 611 | |
fbad9a25 | 612 | BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val); |
435b1e90 | 613 | |
fbad9a25 | 614 | return v850_elf_howto_table + elf_reloc_val; |
e12dd2ea | 615 | } |
252b5132 RH |
616 | |
617 | return NULL; | |
618 | } | |
252b5132 RH |
619 | \f |
620 | /* Set the howto pointer for an V850 ELF reloc. */ | |
e12dd2ea | 621 | |
252b5132 RH |
622 | static void |
623 | v850_elf_info_to_howto_rel (abfd, cache_ptr, dst) | |
b34976b6 AM |
624 | bfd *abfd ATTRIBUTE_UNUSED; |
625 | arelent *cache_ptr; | |
626 | Elf_Internal_Rela *dst; | |
252b5132 RH |
627 | { |
628 | unsigned int r_type; | |
629 | ||
630 | r_type = ELF32_R_TYPE (dst->r_info); | |
631 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
632 | cache_ptr->howto = &v850_elf_howto_table[r_type]; | |
633 | } | |
634 | ||
435b1e90 | 635 | /* Set the howto pointer for a V850 ELF reloc (type RELA). */ |
252b5132 RH |
636 | static void |
637 | v850_elf_info_to_howto_rela (abfd, cache_ptr, dst) | |
b34976b6 AM |
638 | bfd *abfd ATTRIBUTE_UNUSED; |
639 | arelent * cache_ptr; | |
640 | Elf_Internal_Rela *dst; | |
252b5132 RH |
641 | { |
642 | unsigned int r_type; | |
643 | ||
644 | r_type = ELF32_R_TYPE (dst->r_info); | |
645 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
646 | cache_ptr->howto = &v850_elf_howto_table[r_type]; | |
647 | } | |
252b5132 RH |
648 | \f |
649 | /* Look through the relocs for a section during the first phase, and | |
650 | allocate space in the global offset table or procedure linkage | |
651 | table. */ | |
652 | ||
b34976b6 | 653 | static bfd_boolean |
252b5132 | 654 | v850_elf_check_relocs (abfd, info, sec, relocs) |
b34976b6 AM |
655 | bfd *abfd; |
656 | struct bfd_link_info *info; | |
657 | asection *sec; | |
658 | const Elf_Internal_Rela *relocs; | |
252b5132 | 659 | { |
b34976b6 | 660 | bfd_boolean ret = TRUE; |
252b5132 RH |
661 | bfd *dynobj; |
662 | Elf_Internal_Shdr *symtab_hdr; | |
663 | struct elf_link_hash_entry **sym_hashes; | |
664 | const Elf_Internal_Rela *rel; | |
665 | const Elf_Internal_Rela *rel_end; | |
666 | asection *sreloc; | |
667 | enum v850_reloc_type r_type; | |
668 | int other = 0; | |
669 | const char *common = (const char *)0; | |
670 | ||
1049f94e | 671 | if (info->relocatable) |
b34976b6 | 672 | return TRUE; |
252b5132 RH |
673 | |
674 | #ifdef DEBUG | |
d003868e AM |
675 | _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B", |
676 | sec, abfd); | |
252b5132 RH |
677 | #endif |
678 | ||
679 | dynobj = elf_hash_table (info)->dynobj; | |
680 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
681 | sym_hashes = elf_sym_hashes (abfd); | |
682 | sreloc = NULL; | |
683 | ||
684 | rel_end = relocs + sec->reloc_count; | |
685 | for (rel = relocs; rel < rel_end; rel++) | |
686 | { | |
687 | unsigned long r_symndx; | |
688 | struct elf_link_hash_entry *h; | |
689 | ||
690 | r_symndx = ELF32_R_SYM (rel->r_info); | |
691 | if (r_symndx < symtab_hdr->sh_info) | |
692 | h = NULL; | |
693 | else | |
694 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
695 | ||
696 | r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info); | |
697 | switch (r_type) | |
698 | { | |
699 | default: | |
700 | case R_V850_NONE: | |
701 | case R_V850_9_PCREL: | |
702 | case R_V850_22_PCREL: | |
703 | case R_V850_HI16_S: | |
704 | case R_V850_HI16: | |
705 | case R_V850_LO16: | |
1e50d24d | 706 | case R_V850_LO16_SPLIT_OFFSET: |
e30ddb24 NC |
707 | case R_V850_ABS32: |
708 | case R_V850_REL32: | |
252b5132 RH |
709 | case R_V850_16: |
710 | case R_V850_8: | |
711 | case R_V850_CALLT_6_7_OFFSET: | |
712 | case R_V850_CALLT_16_16_OFFSET: | |
713 | break; | |
714 | ||
715 | /* This relocation describes the C++ object vtable hierarchy. | |
716 | Reconstruct it for later use during GC. */ | |
717 | case R_V850_GNU_VTINHERIT: | |
c152c796 | 718 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 719 | return FALSE; |
252b5132 RH |
720 | break; |
721 | ||
e12dd2ea NC |
722 | /* This relocation describes which C++ vtable entries |
723 | are actually used. Record for later use during GC. */ | |
252b5132 | 724 | case R_V850_GNU_VTENTRY: |
c152c796 | 725 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
b34976b6 | 726 | return FALSE; |
252b5132 RH |
727 | break; |
728 | ||
729 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
730 | case R_V850_SDA_16_16_OFFSET: | |
731 | case R_V850_SDA_15_16_OFFSET: | |
732 | other = V850_OTHER_SDA; | |
733 | common = ".scommon"; | |
734 | goto small_data_common; | |
435b1e90 | 735 | |
252b5132 RH |
736 | case R_V850_ZDA_16_16_SPLIT_OFFSET: |
737 | case R_V850_ZDA_16_16_OFFSET: | |
738 | case R_V850_ZDA_15_16_OFFSET: | |
739 | other = V850_OTHER_ZDA; | |
740 | common = ".zcommon"; | |
741 | goto small_data_common; | |
435b1e90 | 742 | |
252b5132 RH |
743 | case R_V850_TDA_4_5_OFFSET: |
744 | case R_V850_TDA_4_4_OFFSET: | |
745 | case R_V850_TDA_6_8_OFFSET: | |
746 | case R_V850_TDA_7_8_OFFSET: | |
747 | case R_V850_TDA_7_7_OFFSET: | |
748 | case R_V850_TDA_16_16_OFFSET: | |
749 | other = V850_OTHER_TDA; | |
750 | common = ".tcommon"; | |
751 | /* fall through */ | |
752 | ||
753 | #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA) | |
754 | ||
755 | small_data_common: | |
756 | if (h) | |
757 | { | |
e12dd2ea NC |
758 | /* Flag which type of relocation was used. */ |
759 | h->other |= other; | |
252b5132 RH |
760 | if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK) |
761 | && (h->other & V850_OTHER_ERROR) == 0) | |
762 | { | |
763 | const char * msg; | |
764 | static char buff[200]; /* XXX */ | |
765 | ||
766 | switch (h->other & V850_OTHER_MASK) | |
767 | { | |
768 | default: | |
769 | msg = _("Variable `%s' cannot occupy in multiple small data regions"); | |
770 | break; | |
771 | case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA: | |
772 | msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions"); | |
773 | break; | |
774 | case V850_OTHER_SDA | V850_OTHER_ZDA: | |
775 | msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously"); | |
776 | break; | |
777 | case V850_OTHER_SDA | V850_OTHER_TDA: | |
778 | msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously"); | |
779 | break; | |
780 | case V850_OTHER_ZDA | V850_OTHER_TDA: | |
781 | msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously"); | |
782 | break; | |
783 | } | |
784 | ||
785 | sprintf (buff, msg, h->root.root.string); | |
786 | info->callbacks->warning (info, buff, h->root.root.string, | |
dc810e39 AM |
787 | abfd, h->root.u.def.section, |
788 | (bfd_vma) 0); | |
252b5132 RH |
789 | |
790 | bfd_set_error (bfd_error_bad_value); | |
791 | h->other |= V850_OTHER_ERROR; | |
b34976b6 | 792 | ret = FALSE; |
252b5132 RH |
793 | } |
794 | } | |
795 | ||
796 | if (h && h->root.type == bfd_link_hash_common | |
797 | && h->root.u.c.p | |
798 | && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON")) | |
799 | { | |
e12dd2ea NC |
800 | asection * section; |
801 | ||
802 | section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common); | |
252b5132 RH |
803 | section->flags |= SEC_IS_COMMON; |
804 | } | |
805 | ||
806 | #ifdef DEBUG | |
807 | fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n", | |
808 | v850_elf_howto_table[ (int)r_type ].name, | |
809 | (h && h->root.root.string) ? h->root.root.string : "<unknown>", | |
810 | (h->root.type == bfd_link_hash_common) ? ", symbol is common" : ""); | |
811 | #endif | |
812 | break; | |
813 | } | |
814 | } | |
815 | ||
816 | return ret; | |
817 | } | |
818 | ||
e12dd2ea NC |
819 | /* In the old version, when an entry was checked out from the table, |
820 | it was deleted. This produced an error if the entry was needed | |
821 | more than once, as the second attempted retry failed. | |
822 | ||
823 | In the current version, the entry is not deleted, instead we set | |
b34976b6 | 824 | the field 'found' to TRUE. If a second lookup matches the same |
e12dd2ea NC |
825 | entry, then we know that the hi16s reloc has already been updated |
826 | and does not need to be updated a second time. | |
827 | ||
828 | TODO - TOFIX: If it is possible that we need to restore 2 different | |
829 | addresses from the same table entry, where the first generates an | |
830 | overflow, whilst the second do not, then this code will fail. */ | |
252b5132 RH |
831 | |
832 | typedef struct hi16s_location | |
833 | { | |
b34976b6 AM |
834 | bfd_vma addend; |
835 | bfd_byte *address; | |
252b5132 | 836 | unsigned long counter; |
b34976b6 AM |
837 | bfd_boolean found; |
838 | struct hi16s_location *next; | |
252b5132 RH |
839 | } |
840 | hi16s_location; | |
841 | ||
b34976b6 AM |
842 | static hi16s_location *previous_hi16s; |
843 | static hi16s_location *free_hi16s; | |
844 | static unsigned long hi16s_counter; | |
252b5132 RH |
845 | |
846 | static void | |
847 | remember_hi16s_reloc (abfd, addend, address) | |
b34976b6 AM |
848 | bfd *abfd; |
849 | bfd_vma addend; | |
850 | bfd_byte *address; | |
252b5132 RH |
851 | { |
852 | hi16s_location * entry = NULL; | |
dc810e39 | 853 | bfd_size_type amt = sizeof (* free_hi16s); |
435b1e90 | 854 | |
252b5132 RH |
855 | /* Find a free structure. */ |
856 | if (free_hi16s == NULL) | |
dc810e39 | 857 | free_hi16s = (hi16s_location *) bfd_zalloc (abfd, amt); |
252b5132 RH |
858 | |
859 | entry = free_hi16s; | |
860 | free_hi16s = free_hi16s->next; | |
435b1e90 | 861 | |
252b5132 RH |
862 | entry->addend = addend; |
863 | entry->address = address; | |
864 | entry->counter = hi16s_counter ++; | |
b34976b6 | 865 | entry->found = FALSE; |
252b5132 RH |
866 | entry->next = previous_hi16s; |
867 | previous_hi16s = entry; | |
435b1e90 | 868 | |
252b5132 RH |
869 | /* Cope with wrap around of our counter. */ |
870 | if (hi16s_counter == 0) | |
871 | { | |
872 | /* XXX - Assume that all counter entries differ only in their low 16 bits. */ | |
873 | for (entry = previous_hi16s; entry != NULL; entry = entry->next) | |
874 | entry->counter &= 0xffff; | |
875 | ||
876 | hi16s_counter = 0x10000; | |
877 | } | |
435b1e90 | 878 | |
252b5132 RH |
879 | return; |
880 | } | |
881 | ||
882 | static bfd_byte * | |
883 | find_remembered_hi16s_reloc (addend, already_found) | |
b34976b6 AM |
884 | bfd_vma addend; |
885 | bfd_boolean *already_found; | |
252b5132 | 886 | { |
b34976b6 AM |
887 | hi16s_location *match = NULL; |
888 | hi16s_location *entry; | |
889 | hi16s_location *previous = NULL; | |
890 | hi16s_location *prev; | |
891 | bfd_byte *addr; | |
435b1e90 | 892 | |
252b5132 RH |
893 | /* Search the table. Record the most recent entry that matches. */ |
894 | for (entry = previous_hi16s; entry; entry = entry->next) | |
895 | { | |
896 | if (entry->addend == addend | |
897 | && (match == NULL || match->counter < entry->counter)) | |
898 | { | |
899 | previous = prev; | |
900 | match = entry; | |
901 | } | |
435b1e90 | 902 | |
252b5132 RH |
903 | prev = entry; |
904 | } | |
905 | ||
906 | if (match == NULL) | |
907 | return NULL; | |
908 | ||
909 | /* Extract the address. */ | |
910 | addr = match->address; | |
911 | ||
4cc11e76 | 912 | /* Remember if this entry has already been used before. */ |
252b5132 RH |
913 | if (already_found) |
914 | * already_found = match->found; | |
915 | ||
916 | /* Note that this entry has now been used. */ | |
b34976b6 | 917 | match->found = TRUE; |
435b1e90 | 918 | |
252b5132 | 919 | return addr; |
435b1e90 | 920 | } |
252b5132 | 921 | |
1e50d24d RS |
922 | /* Calculate the final operand value for a R_V850_LO16 or |
923 | R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and | |
924 | ADDEND is the sum of the relocation symbol and offset. Store the | |
925 | operand value in *INSN and return true on success. | |
926 | ||
927 | The assembler has already done some of this: If the value stored in | |
928 | the instruction has its 15th bit set, (counting from zero) then the | |
929 | assembler will have added 1 to the value stored in the associated | |
930 | HI16S reloc. So for example, these relocations: | |
931 | ||
932 | movhi hi( fred ), r0, r1 | |
933 | movea lo( fred ), r1, r1 | |
934 | ||
935 | will store 0 in the value fields for the MOVHI and MOVEA instructions | |
936 | and addend will be the address of fred, but for these instructions: | |
937 | ||
938 | movhi hi( fred + 0x123456), r0, r1 | |
939 | movea lo( fred + 0x123456), r1, r1 | |
940 | ||
941 | the value stored in the MOVHI instruction will be 0x12 and the value | |
942 | stored in the MOVEA instruction will be 0x3456. If however the | |
943 | instructions were: | |
944 | ||
945 | movhi hi( fred + 0x10ffff), r0, r1 | |
946 | movea lo( fred + 0x10ffff), r1, r1 | |
947 | ||
948 | then the value stored in the MOVHI instruction would be 0x11 (not | |
949 | 0x10) and the value stored in the MOVEA instruction would be 0xffff. | |
950 | Thus (assuming for the moment that the addend is 0), at run time the | |
951 | MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction | |
952 | adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if | |
953 | the instructions were: | |
954 | ||
955 | movhi hi( fred - 1), r0, r1 | |
956 | movea lo( fred - 1), r1, r1 | |
957 | ||
958 | then 0 is stored in the MOVHI instruction and -1 is stored in the | |
959 | MOVEA instruction. | |
960 | ||
961 | Overflow can occur if the addition of the value stored in the | |
962 | instruction plus the addend sets the 15th bit when before it was clear. | |
963 | This is because the 15th bit will be sign extended into the high part, | |
964 | thus reducing its value by one, but since the 15th bit was originally | |
965 | clear, the assembler will not have added 1 to the previous HI16S reloc | |
966 | to compensate for this effect. For example: | |
967 | ||
968 | movhi hi( fred + 0x123456), r0, r1 | |
969 | movea lo( fred + 0x123456), r1, r1 | |
970 | ||
971 | The value stored in HI16S reloc is 0x12, the value stored in the LO16 | |
972 | reloc is 0x3456. If we assume that the address of fred is 0x00007000 | |
973 | then the relocations become: | |
974 | ||
975 | HI16S: 0x0012 + (0x00007000 >> 16) = 0x12 | |
976 | LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456 | |
977 | ||
978 | but when the instructions are executed, the MOVEA instruction's value | |
979 | is signed extended, so the sum becomes: | |
980 | ||
981 | 0x00120000 | |
982 | + 0xffffa456 | |
983 | ------------ | |
984 | 0x0011a456 but 'fred + 0x123456' = 0x0012a456 | |
985 | ||
986 | Note that if the 15th bit was set in the value stored in the LO16 | |
987 | reloc, then we do not have to do anything: | |
988 | ||
989 | movhi hi( fred + 0x10ffff), r0, r1 | |
990 | movea lo( fred + 0x10ffff), r1, r1 | |
991 | ||
992 | HI16S: 0x0011 + (0x00007000 >> 16) = 0x11 | |
993 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff | |
994 | ||
995 | 0x00110000 | |
996 | + 0x00006fff | |
997 | ------------ | |
998 | 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff | |
999 | ||
1000 | Overflow can also occur if the computation carries into the 16th bit | |
1001 | and it also results in the 15th bit having the same value as the 15th | |
1002 | bit of the original value. What happens is that the HI16S reloc | |
1003 | will have already examined the 15th bit of the original value and | |
1004 | added 1 to the high part if the bit is set. This compensates for the | |
1005 | sign extension of 15th bit of the result of the computation. But now | |
1006 | there is a carry into the 16th bit, and this has not been allowed for. | |
1007 | ||
1008 | So, for example if fred is at address 0xf000: | |
1009 | ||
1010 | movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] | |
1011 | movea lo( fred + 0xffff), r1, r1 | |
1012 | ||
1013 | HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001 | |
1014 | LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost) | |
1015 | ||
1016 | 0x00010000 | |
1017 | + 0xffffefff | |
1018 | ------------ | |
1019 | 0x0000efff but 'fred + 0xffff' = 0x0001efff | |
1020 | ||
1021 | Similarly, if the 15th bit remains clear, but overflow occurs into | |
1022 | the 16th bit then (assuming the address of fred is 0xf000): | |
1023 | ||
1024 | movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] | |
1025 | movea lo( fred + 0x7000), r1, r1 | |
1026 | ||
1027 | HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000 | |
1028 | LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost) | |
1029 | ||
1030 | 0x00000000 | |
1031 | + 0x00006fff | |
1032 | ------------ | |
1033 | 0x00006fff but 'fred + 0x7000' = 0x00016fff | |
1034 | ||
1035 | Note - there is no need to change anything if a carry occurs, and the | |
1036 | 15th bit changes its value from being set to being clear, as the HI16S | |
1037 | reloc will have already added in 1 to the high part for us: | |
1038 | ||
1039 | movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] | |
1040 | movea lo( fred + 0xffff), r1, r1 | |
1041 | ||
1042 | HI16S: 0x0001 + (0x00007000 >> 16) | |
1043 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost) | |
1044 | ||
1045 | 0x00010000 | |
1046 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
1047 | ------------ | |
1048 | 0x00016fff which is right (assuming that fred is at 0x7000) | |
1049 | ||
1050 | but if the 15th bit goes from being clear to being set, then we must | |
1051 | once again handle overflow: | |
1052 | ||
1053 | movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] | |
1054 | movea lo( fred + 0x7000), r1, r1 | |
1055 | ||
1056 | HI16S: 0x0000 + (0x0000ffff >> 16) | |
1057 | LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16) | |
1058 | ||
1059 | 0x00000000 | |
1060 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
1061 | ------------ | |
1062 | 0x00006fff which is wrong (assuming that fred is at 0xffff). */ | |
1063 | ||
1064 | static bfd_boolean | |
1065 | v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn, | |
1066 | unsigned long addend) | |
1067 | { | |
1068 | #define BIT15_SET(x) ((x) & 0x8000) | |
1069 | #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff) | |
1070 | if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend)) | |
1071 | || (OVERFLOWS (addend, *insn) | |
1072 | && ((! BIT15_SET (*insn)) || (BIT15_SET (addend))))) | |
1073 | { | |
1074 | bfd_boolean already_updated; | |
1075 | bfd_byte *hi16s_address = find_remembered_hi16s_reloc | |
1076 | (addend, & already_updated); | |
1077 | ||
1078 | /* Amend the matching HI16_S relocation. */ | |
1079 | if (hi16s_address != NULL) | |
1080 | { | |
1081 | if (! already_updated) | |
1082 | { | |
1083 | unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address); | |
1084 | hi_insn += 1; | |
1085 | bfd_put_16 (abfd, hi_insn, hi16s_address); | |
1086 | } | |
1087 | } | |
1088 | else | |
1089 | { | |
1090 | fprintf (stderr, _("FAILED to find previous HI16 reloc\n")); | |
1091 | return FALSE; | |
1092 | } | |
1093 | } | |
1094 | #undef OVERFLOWS | |
1095 | #undef BIT15_SET | |
1096 | ||
1097 | /* Do not complain if value has top bit set, as this has been | |
1098 | anticipated. */ | |
1099 | *insn = (*insn + addend) & 0xffff; | |
1100 | return TRUE; | |
1101 | } | |
1102 | ||
252b5132 | 1103 | /* FIXME: The code here probably ought to be removed and the code in reloc.c |
4cc11e76 | 1104 | allowed to do its stuff instead. At least for most of the relocs, anyway. */ |
e12dd2ea | 1105 | |
252b5132 RH |
1106 | static bfd_reloc_status_type |
1107 | v850_elf_perform_relocation (abfd, r_type, addend, address) | |
dc810e39 AM |
1108 | bfd *abfd; |
1109 | unsigned int r_type; | |
1110 | bfd_vma addend; | |
1111 | bfd_byte *address; | |
252b5132 RH |
1112 | { |
1113 | unsigned long insn; | |
1e50d24d | 1114 | unsigned long result; |
252b5132 | 1115 | bfd_signed_vma saddend = (bfd_signed_vma) addend; |
435b1e90 | 1116 | |
252b5132 RH |
1117 | switch (r_type) |
1118 | { | |
1119 | default: | |
1120 | /* fprintf (stderr, "reloc type %d not SUPPORTED\n", r_type ); */ | |
1121 | return bfd_reloc_notsupported; | |
435b1e90 | 1122 | |
e30ddb24 NC |
1123 | case R_V850_REL32: |
1124 | case R_V850_ABS32: | |
252b5132 RH |
1125 | bfd_put_32 (abfd, addend, address); |
1126 | return bfd_reloc_ok; | |
435b1e90 | 1127 | |
252b5132 RH |
1128 | case R_V850_22_PCREL: |
1129 | if (saddend > 0x1fffff || saddend < -0x200000) | |
1130 | return bfd_reloc_overflow; | |
435b1e90 | 1131 | |
252b5132 RH |
1132 | if ((addend % 2) != 0) |
1133 | return bfd_reloc_dangerous; | |
435b1e90 | 1134 | |
252b5132 RH |
1135 | insn = bfd_get_32 (abfd, address); |
1136 | insn &= ~0xfffe003f; | |
1137 | insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16)); | |
dc810e39 | 1138 | bfd_put_32 (abfd, (bfd_vma) insn, address); |
252b5132 | 1139 | return bfd_reloc_ok; |
435b1e90 | 1140 | |
252b5132 RH |
1141 | case R_V850_9_PCREL: |
1142 | if (saddend > 0xff || saddend < -0x100) | |
1143 | return bfd_reloc_overflow; | |
435b1e90 | 1144 | |
252b5132 RH |
1145 | if ((addend % 2) != 0) |
1146 | return bfd_reloc_dangerous; | |
435b1e90 | 1147 | |
252b5132 RH |
1148 | insn = bfd_get_16 (abfd, address); |
1149 | insn &= ~ 0xf870; | |
1150 | insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3); | |
1151 | break; | |
435b1e90 | 1152 | |
252b5132 RH |
1153 | case R_V850_HI16: |
1154 | addend += (bfd_get_16 (abfd, address) << 16); | |
1155 | addend = (addend >> 16); | |
1156 | insn = addend; | |
1157 | break; | |
435b1e90 | 1158 | |
252b5132 RH |
1159 | case R_V850_HI16_S: |
1160 | /* Remember where this relocation took place. */ | |
1161 | remember_hi16s_reloc (abfd, addend, address); | |
1162 | ||
1163 | addend += (bfd_get_16 (abfd, address) << 16); | |
1164 | addend = (addend >> 16) + ((addend & 0x8000) != 0); | |
435b1e90 KH |
1165 | |
1166 | /* This relocation cannot overflow. */ | |
252b5132 RH |
1167 | if (addend > 0x7fff) |
1168 | addend = 0; | |
435b1e90 | 1169 | |
252b5132 RH |
1170 | insn = addend; |
1171 | break; | |
435b1e90 | 1172 | |
252b5132 | 1173 | case R_V850_LO16: |
1e50d24d RS |
1174 | insn = bfd_get_16 (abfd, address); |
1175 | if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend)) | |
1176 | return bfd_reloc_overflow; | |
1177 | break; | |
252b5132 RH |
1178 | |
1179 | case R_V850_8: | |
1180 | addend += (char) bfd_get_8 (abfd, address); | |
1181 | ||
1182 | saddend = (bfd_signed_vma) addend; | |
435b1e90 | 1183 | |
252b5132 RH |
1184 | if (saddend > 0x7f || saddend < -0x80) |
1185 | return bfd_reloc_overflow; | |
1186 | ||
1187 | bfd_put_8 (abfd, addend, address); | |
1188 | return bfd_reloc_ok; | |
1189 | ||
1190 | case R_V850_CALLT_16_16_OFFSET: | |
1191 | addend += bfd_get_16 (abfd, address); | |
435b1e90 | 1192 | |
252b5132 | 1193 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1194 | |
252b5132 RH |
1195 | if (saddend > 0xffff || saddend < 0) |
1196 | return bfd_reloc_overflow; | |
1197 | ||
1198 | insn = addend; | |
1199 | break; | |
435b1e90 | 1200 | |
252b5132 RH |
1201 | case R_V850_16: |
1202 | ||
435b1e90 | 1203 | /* drop through */ |
252b5132 RH |
1204 | case R_V850_SDA_16_16_OFFSET: |
1205 | case R_V850_ZDA_16_16_OFFSET: | |
1206 | case R_V850_TDA_16_16_OFFSET: | |
1207 | addend += bfd_get_16 (abfd, address); | |
435b1e90 | 1208 | |
252b5132 | 1209 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1210 | |
252b5132 RH |
1211 | if (saddend > 0x7fff || saddend < -0x8000) |
1212 | return bfd_reloc_overflow; | |
1213 | ||
1214 | insn = addend; | |
1215 | break; | |
435b1e90 | 1216 | |
252b5132 RH |
1217 | case R_V850_SDA_15_16_OFFSET: |
1218 | case R_V850_ZDA_15_16_OFFSET: | |
1219 | insn = bfd_get_16 (abfd, address); | |
1220 | addend += (insn & 0xfffe); | |
435b1e90 | 1221 | |
252b5132 | 1222 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1223 | |
252b5132 RH |
1224 | if (saddend > 0x7ffe || saddend < -0x8000) |
1225 | return bfd_reloc_overflow; | |
435b1e90 | 1226 | |
252b5132 RH |
1227 | if (addend & 1) |
1228 | return bfd_reloc_dangerous; | |
435b1e90 | 1229 | |
dc810e39 | 1230 | insn = (addend &~ (bfd_vma) 1) | (insn & 1); |
252b5132 | 1231 | break; |
435b1e90 | 1232 | |
252b5132 RH |
1233 | case R_V850_TDA_6_8_OFFSET: |
1234 | insn = bfd_get_16 (abfd, address); | |
1235 | addend += ((insn & 0x7e) << 1); | |
435b1e90 | 1236 | |
252b5132 | 1237 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1238 | |
252b5132 RH |
1239 | if (saddend > 0xfc || saddend < 0) |
1240 | return bfd_reloc_overflow; | |
435b1e90 | 1241 | |
252b5132 RH |
1242 | if (addend & 3) |
1243 | return bfd_reloc_dangerous; | |
435b1e90 | 1244 | |
252b5132 RH |
1245 | insn &= 0xff81; |
1246 | insn |= (addend >> 1); | |
1247 | break; | |
435b1e90 | 1248 | |
252b5132 RH |
1249 | case R_V850_TDA_7_8_OFFSET: |
1250 | insn = bfd_get_16 (abfd, address); | |
1251 | addend += ((insn & 0x7f) << 1); | |
435b1e90 | 1252 | |
252b5132 | 1253 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1254 | |
252b5132 RH |
1255 | if (saddend > 0xfe || saddend < 0) |
1256 | return bfd_reloc_overflow; | |
435b1e90 | 1257 | |
252b5132 RH |
1258 | if (addend & 1) |
1259 | return bfd_reloc_dangerous; | |
435b1e90 | 1260 | |
252b5132 RH |
1261 | insn &= 0xff80; |
1262 | insn |= (addend >> 1); | |
1263 | break; | |
435b1e90 | 1264 | |
252b5132 RH |
1265 | case R_V850_TDA_7_7_OFFSET: |
1266 | insn = bfd_get_16 (abfd, address); | |
1267 | addend += insn & 0x7f; | |
435b1e90 | 1268 | |
252b5132 | 1269 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1270 | |
252b5132 RH |
1271 | if (saddend > 0x7f || saddend < 0) |
1272 | return bfd_reloc_overflow; | |
435b1e90 | 1273 | |
252b5132 RH |
1274 | insn &= 0xff80; |
1275 | insn |= addend; | |
1276 | break; | |
435b1e90 | 1277 | |
252b5132 RH |
1278 | case R_V850_TDA_4_5_OFFSET: |
1279 | insn = bfd_get_16 (abfd, address); | |
1280 | addend += ((insn & 0xf) << 1); | |
435b1e90 | 1281 | |
252b5132 | 1282 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1283 | |
252b5132 RH |
1284 | if (saddend > 0x1e || saddend < 0) |
1285 | return bfd_reloc_overflow; | |
435b1e90 | 1286 | |
252b5132 RH |
1287 | if (addend & 1) |
1288 | return bfd_reloc_dangerous; | |
435b1e90 | 1289 | |
252b5132 RH |
1290 | insn &= 0xfff0; |
1291 | insn |= (addend >> 1); | |
1292 | break; | |
435b1e90 | 1293 | |
252b5132 RH |
1294 | case R_V850_TDA_4_4_OFFSET: |
1295 | insn = bfd_get_16 (abfd, address); | |
1296 | addend += insn & 0xf; | |
435b1e90 | 1297 | |
252b5132 | 1298 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1299 | |
252b5132 RH |
1300 | if (saddend > 0xf || saddend < 0) |
1301 | return bfd_reloc_overflow; | |
435b1e90 | 1302 | |
252b5132 RH |
1303 | insn &= 0xfff0; |
1304 | insn |= addend; | |
1305 | break; | |
435b1e90 | 1306 | |
1e50d24d RS |
1307 | case R_V850_LO16_SPLIT_OFFSET: |
1308 | insn = bfd_get_32 (abfd, address); | |
1309 | result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5); | |
1310 | if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) | |
1311 | return bfd_reloc_overflow; | |
1312 | insn = (((result << 16) & 0xfffe0000) | |
1313 | | ((result << 5) & 0x20) | |
1314 | | (insn & ~0xfffe0020)); | |
1315 | bfd_put_32 (abfd, insn, address); | |
1316 | return bfd_reloc_ok; | |
1317 | ||
252b5132 RH |
1318 | case R_V850_ZDA_16_16_SPLIT_OFFSET: |
1319 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
1320 | insn = bfd_get_32 (abfd, address); | |
1321 | addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5); | |
435b1e90 | 1322 | |
252b5132 | 1323 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1324 | |
252b5132 RH |
1325 | if (saddend > 0x7fff || saddend < -0x8000) |
1326 | return bfd_reloc_overflow; | |
435b1e90 | 1327 | |
252b5132 RH |
1328 | insn &= 0x0001ffdf; |
1329 | insn |= (addend & 1) << 5; | |
dc810e39 | 1330 | insn |= (addend &~ (bfd_vma) 1) << 16; |
435b1e90 | 1331 | |
dc810e39 | 1332 | bfd_put_32 (abfd, (bfd_vma) insn, address); |
252b5132 | 1333 | return bfd_reloc_ok; |
435b1e90 | 1334 | |
252b5132 RH |
1335 | case R_V850_CALLT_6_7_OFFSET: |
1336 | insn = bfd_get_16 (abfd, address); | |
1337 | addend += ((insn & 0x3f) << 1); | |
435b1e90 | 1338 | |
252b5132 | 1339 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1340 | |
252b5132 RH |
1341 | if (saddend > 0x7e || saddend < 0) |
1342 | return bfd_reloc_overflow; | |
435b1e90 | 1343 | |
252b5132 RH |
1344 | if (addend & 1) |
1345 | return bfd_reloc_dangerous; | |
435b1e90 | 1346 | |
252b5132 RH |
1347 | insn &= 0xff80; |
1348 | insn |= (addend >> 1); | |
1349 | break; | |
1350 | ||
1351 | case R_V850_GNU_VTINHERIT: | |
1352 | case R_V850_GNU_VTENTRY: | |
1353 | return bfd_reloc_ok; | |
1354 | ||
1355 | } | |
1356 | ||
dc810e39 | 1357 | bfd_put_16 (abfd, (bfd_vma) insn, address); |
252b5132 RH |
1358 | return bfd_reloc_ok; |
1359 | } | |
252b5132 RH |
1360 | \f |
1361 | /* Insert the addend into the instruction. */ | |
e12dd2ea | 1362 | |
252b5132 RH |
1363 | static bfd_reloc_status_type |
1364 | v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err) | |
b34976b6 AM |
1365 | bfd *abfd ATTRIBUTE_UNUSED; |
1366 | arelent *reloc; | |
1367 | asymbol *symbol; | |
1368 | PTR data ATTRIBUTE_UNUSED; | |
1369 | asection *isection; | |
1370 | bfd *obfd; | |
1371 | char **err ATTRIBUTE_UNUSED; | |
252b5132 RH |
1372 | { |
1373 | long relocation; | |
435b1e90 | 1374 | |
252b5132 RH |
1375 | /* If there is an output BFD, |
1376 | and the symbol is not a section name (which is only defined at final link time), | |
1377 | and either we are not putting the addend into the instruction | |
e12dd2ea | 1378 | or the addend is zero, so there is nothing to add into the instruction |
252b5132 RH |
1379 | then just fixup the address and return. */ |
1380 | if (obfd != (bfd *) NULL | |
1381 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1382 | && (! reloc->howto->partial_inplace | |
1383 | || reloc->addend == 0)) | |
1384 | { | |
1385 | reloc->address += isection->output_offset; | |
1386 | return bfd_reloc_ok; | |
1387 | } | |
435b1e90 | 1388 | |
252b5132 RH |
1389 | /* Catch relocs involving undefined symbols. */ |
1390 | if (bfd_is_und_section (symbol->section) | |
1391 | && (symbol->flags & BSF_WEAK) == 0 | |
1392 | && obfd == NULL) | |
1393 | return bfd_reloc_undefined; | |
1394 | ||
1395 | /* We handle final linking of some relocs ourselves. */ | |
1396 | ||
1397 | /* Is the address of the relocation really within the section? */ | |
07515404 | 1398 | if (reloc->address > bfd_get_section_limit (abfd, isection)) |
252b5132 | 1399 | return bfd_reloc_outofrange; |
435b1e90 | 1400 | |
4cc11e76 | 1401 | /* Work out which section the relocation is targeted at and the |
252b5132 | 1402 | initial relocation command value. */ |
435b1e90 | 1403 | |
b34976b6 | 1404 | if (reloc->howto->pc_relative) |
86aba9db NC |
1405 | return bfd_reloc_ok; |
1406 | ||
252b5132 RH |
1407 | /* Get symbol value. (Common symbols are special.) */ |
1408 | if (bfd_is_com_section (symbol->section)) | |
1409 | relocation = 0; | |
1410 | else | |
1411 | relocation = symbol->value; | |
435b1e90 | 1412 | |
252b5132 RH |
1413 | /* Convert input-section-relative symbol value to absolute + addend. */ |
1414 | relocation += symbol->section->output_section->vma; | |
1415 | relocation += symbol->section->output_offset; | |
1416 | relocation += reloc->addend; | |
435b1e90 | 1417 | |
435b1e90 | 1418 | reloc->addend = relocation; |
252b5132 RH |
1419 | return bfd_reloc_ok; |
1420 | } | |
86aba9db NC |
1421 | |
1422 | /* This function is used for relocs which are only used | |
1423 | for relaxing, which the linker should otherwise ignore. */ | |
1424 | ||
1425 | static bfd_reloc_status_type | |
1426 | v850_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1427 | output_bfd, error_message) | |
b34976b6 AM |
1428 | bfd *abfd ATTRIBUTE_UNUSED; |
1429 | arelent *reloc_entry; | |
1430 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1431 | PTR data ATTRIBUTE_UNUSED; | |
1432 | asection *input_section; | |
1433 | bfd *output_bfd; | |
1434 | char **error_message ATTRIBUTE_UNUSED; | |
86aba9db NC |
1435 | { |
1436 | if (output_bfd != NULL) | |
1437 | reloc_entry->address += input_section->output_offset; | |
1438 | ||
1439 | return bfd_reloc_ok; | |
1440 | } | |
252b5132 | 1441 | \f |
b34976b6 | 1442 | static bfd_boolean |
252b5132 | 1443 | v850_elf_is_local_label_name (abfd, name) |
b34976b6 AM |
1444 | bfd *abfd ATTRIBUTE_UNUSED; |
1445 | const char *name; | |
252b5132 RH |
1446 | { |
1447 | return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.')) | |
1448 | || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')); | |
1449 | } | |
252b5132 | 1450 | \f |
5cec6941 NC |
1451 | /* We overload some of the bfd_reloc error codes for own purposes. */ |
1452 | #define bfd_reloc_gp_not_found bfd_reloc_other | |
1453 | #define bfd_reloc_ep_not_found bfd_reloc_continue | |
1454 | #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1) | |
1455 | ||
252b5132 | 1456 | /* Perform a relocation as part of a final link. */ |
e12dd2ea | 1457 | |
252b5132 RH |
1458 | static bfd_reloc_status_type |
1459 | v850_elf_final_link_relocate (howto, input_bfd, output_bfd, | |
86aba9db NC |
1460 | input_section, contents, offset, value, |
1461 | addend, info, sym_sec, is_local) | |
b34976b6 AM |
1462 | reloc_howto_type *howto; |
1463 | bfd *input_bfd; | |
1464 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
1465 | asection *input_section; | |
1466 | bfd_byte *contents; | |
1467 | bfd_vma offset; | |
1468 | bfd_vma value; | |
1469 | bfd_vma addend; | |
1470 | struct bfd_link_info *info; | |
1471 | asection *sym_sec; | |
1472 | int is_local ATTRIBUTE_UNUSED; | |
252b5132 | 1473 | { |
b34976b6 AM |
1474 | unsigned int r_type = howto->type; |
1475 | bfd_byte *hit_data = contents + offset; | |
252b5132 RH |
1476 | |
1477 | /* Adjust the value according to the relocation. */ | |
1478 | switch (r_type) | |
1479 | { | |
1480 | case R_V850_9_PCREL: | |
1481 | value -= (input_section->output_section->vma | |
1482 | + input_section->output_offset); | |
1483 | value -= offset; | |
1484 | break; | |
435b1e90 | 1485 | |
252b5132 RH |
1486 | case R_V850_22_PCREL: |
1487 | value -= (input_section->output_section->vma | |
1488 | + input_section->output_offset | |
1489 | + offset); | |
1490 | ||
232fb1a3 NC |
1491 | /* If the sign extension will corrupt the value then we have overflowed. */ |
1492 | if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000)) | |
1493 | return bfd_reloc_overflow; | |
435b1e90 | 1494 | |
e12dd2ea NC |
1495 | /* Only the bottom 24 bits of the PC are valid */ |
1496 | value = SEXT24 (value); | |
252b5132 | 1497 | break; |
435b1e90 | 1498 | |
e30ddb24 NC |
1499 | case R_V850_REL32: |
1500 | value -= (input_section->output_section->vma | |
1501 | + input_section->output_offset | |
1502 | + offset); | |
1503 | break; | |
1504 | ||
252b5132 RH |
1505 | case R_V850_HI16_S: |
1506 | case R_V850_HI16: | |
1507 | case R_V850_LO16: | |
1e50d24d | 1508 | case R_V850_LO16_SPLIT_OFFSET: |
252b5132 | 1509 | case R_V850_16: |
e30ddb24 | 1510 | case R_V850_ABS32: |
252b5132 RH |
1511 | case R_V850_8: |
1512 | break; | |
1513 | ||
435b1e90 | 1514 | case R_V850_ZDA_15_16_OFFSET: |
252b5132 RH |
1515 | case R_V850_ZDA_16_16_OFFSET: |
1516 | case R_V850_ZDA_16_16_SPLIT_OFFSET: | |
1517 | if (sym_sec == NULL) | |
1518 | return bfd_reloc_undefined; | |
435b1e90 | 1519 | |
252b5132 RH |
1520 | value -= sym_sec->output_section->vma; |
1521 | break; | |
1522 | ||
1523 | case R_V850_SDA_15_16_OFFSET: | |
1524 | case R_V850_SDA_16_16_OFFSET: | |
1525 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
1526 | { | |
1527 | unsigned long gp; | |
1528 | struct bfd_link_hash_entry * h; | |
1529 | ||
1530 | if (sym_sec == NULL) | |
1531 | return bfd_reloc_undefined; | |
435b1e90 | 1532 | |
252b5132 | 1533 | /* Get the value of __gp. */ |
b34976b6 | 1534 | h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE); |
252b5132 RH |
1535 | if (h == (struct bfd_link_hash_entry *) NULL |
1536 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1537 | return bfd_reloc_gp_not_found; |
252b5132 RH |
1538 | |
1539 | gp = (h->u.def.value | |
1540 | + h->u.def.section->output_section->vma | |
1541 | + h->u.def.section->output_offset); | |
1542 | ||
1543 | value -= sym_sec->output_section->vma; | |
1544 | value -= (gp - sym_sec->output_section->vma); | |
1545 | } | |
1546 | break; | |
1547 | ||
1548 | case R_V850_TDA_4_4_OFFSET: | |
1549 | case R_V850_TDA_4_5_OFFSET: | |
1550 | case R_V850_TDA_16_16_OFFSET: | |
1551 | case R_V850_TDA_7_7_OFFSET: | |
1552 | case R_V850_TDA_7_8_OFFSET: | |
1553 | case R_V850_TDA_6_8_OFFSET: | |
1554 | { | |
1555 | unsigned long ep; | |
1556 | struct bfd_link_hash_entry * h; | |
435b1e90 | 1557 | |
252b5132 | 1558 | /* Get the value of __ep. */ |
b34976b6 | 1559 | h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE); |
252b5132 RH |
1560 | if (h == (struct bfd_link_hash_entry *) NULL |
1561 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1562 | return bfd_reloc_ep_not_found; |
252b5132 RH |
1563 | |
1564 | ep = (h->u.def.value | |
1565 | + h->u.def.section->output_section->vma | |
1566 | + h->u.def.section->output_offset); | |
1567 | ||
1568 | value -= ep; | |
1569 | } | |
1570 | break; | |
435b1e90 | 1571 | |
252b5132 RH |
1572 | case R_V850_CALLT_6_7_OFFSET: |
1573 | { | |
1574 | unsigned long ctbp; | |
1575 | struct bfd_link_hash_entry * h; | |
435b1e90 | 1576 | |
252b5132 | 1577 | /* Get the value of __ctbp. */ |
b34976b6 | 1578 | h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); |
252b5132 RH |
1579 | if (h == (struct bfd_link_hash_entry *) NULL |
1580 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1581 | return bfd_reloc_ctbp_not_found; |
252b5132 RH |
1582 | |
1583 | ctbp = (h->u.def.value | |
1584 | + h->u.def.section->output_section->vma | |
1585 | + h->u.def.section->output_offset); | |
1586 | value -= ctbp; | |
1587 | } | |
1588 | break; | |
435b1e90 | 1589 | |
252b5132 RH |
1590 | case R_V850_CALLT_16_16_OFFSET: |
1591 | { | |
1592 | unsigned long ctbp; | |
1593 | struct bfd_link_hash_entry * h; | |
1594 | ||
1595 | if (sym_sec == NULL) | |
1596 | return bfd_reloc_undefined; | |
435b1e90 | 1597 | |
252b5132 | 1598 | /* Get the value of __ctbp. */ |
b34976b6 | 1599 | h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); |
252b5132 RH |
1600 | if (h == (struct bfd_link_hash_entry *) NULL |
1601 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1602 | return bfd_reloc_ctbp_not_found; |
252b5132 RH |
1603 | |
1604 | ctbp = (h->u.def.value | |
1605 | + h->u.def.section->output_section->vma | |
1606 | + h->u.def.section->output_offset); | |
1607 | ||
1608 | value -= sym_sec->output_section->vma; | |
1609 | value -= (ctbp - sym_sec->output_section->vma); | |
1610 | } | |
1611 | break; | |
435b1e90 | 1612 | |
252b5132 RH |
1613 | case R_V850_NONE: |
1614 | case R_V850_GNU_VTINHERIT: | |
1615 | case R_V850_GNU_VTENTRY: | |
86aba9db NC |
1616 | case R_V850_LONGCALL: |
1617 | case R_V850_LONGJUMP: | |
1618 | case R_V850_ALIGN: | |
252b5132 RH |
1619 | return bfd_reloc_ok; |
1620 | ||
1621 | default: | |
1622 | return bfd_reloc_notsupported; | |
1623 | } | |
1624 | ||
1625 | /* Perform the relocation. */ | |
435b1e90 | 1626 | return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data); |
252b5132 | 1627 | } |
252b5132 RH |
1628 | \f |
1629 | /* Relocate an V850 ELF section. */ | |
e12dd2ea | 1630 | |
b34976b6 | 1631 | static bfd_boolean |
252b5132 RH |
1632 | v850_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
1633 | contents, relocs, local_syms, local_sections) | |
b34976b6 AM |
1634 | bfd *output_bfd; |
1635 | struct bfd_link_info *info; | |
1636 | bfd *input_bfd; | |
1637 | asection *input_section; | |
1638 | bfd_byte *contents; | |
1639 | Elf_Internal_Rela *relocs; | |
1640 | Elf_Internal_Sym *local_syms; | |
1641 | asection **local_sections; | |
252b5132 | 1642 | { |
b34976b6 AM |
1643 | Elf_Internal_Shdr *symtab_hdr; |
1644 | struct elf_link_hash_entry **sym_hashes; | |
1645 | Elf_Internal_Rela *rel; | |
1646 | Elf_Internal_Rela *relend; | |
252b5132 | 1647 | |
1049f94e | 1648 | if (info->relocatable) |
b34976b6 | 1649 | return TRUE; |
f0fe0e16 | 1650 | |
252b5132 RH |
1651 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
1652 | sym_hashes = elf_sym_hashes (input_bfd); | |
1653 | ||
1654 | if (sym_hashes == NULL) | |
1655 | { | |
1656 | info->callbacks->warning | |
dc810e39 AM |
1657 | (info, "no hash table available", |
1658 | NULL, input_bfd, input_section, (bfd_vma) 0); | |
252b5132 | 1659 | |
b34976b6 | 1660 | return FALSE; |
252b5132 | 1661 | } |
435b1e90 | 1662 | |
252b5132 RH |
1663 | /* Reset the list of remembered HI16S relocs to empty. */ |
1664 | free_hi16s = previous_hi16s; | |
1665 | previous_hi16s = NULL; | |
1666 | hi16s_counter = 0; | |
435b1e90 | 1667 | |
252b5132 RH |
1668 | rel = relocs; |
1669 | relend = relocs + input_section->reloc_count; | |
1670 | for (; rel < relend; rel++) | |
1671 | { | |
b34976b6 AM |
1672 | int r_type; |
1673 | reloc_howto_type *howto; | |
1674 | unsigned long r_symndx; | |
1675 | Elf_Internal_Sym *sym; | |
1676 | asection *sec; | |
1677 | struct elf_link_hash_entry *h; | |
1678 | bfd_vma relocation; | |
1679 | bfd_reloc_status_type r; | |
252b5132 RH |
1680 | |
1681 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1682 | r_type = ELF32_R_TYPE (rel->r_info); | |
1683 | ||
1684 | if (r_type == R_V850_GNU_VTENTRY | |
1685 | || r_type == R_V850_GNU_VTINHERIT) | |
1686 | continue; | |
1687 | ||
252b5132 | 1688 | /* This is a final link. */ |
f0fe0e16 | 1689 | howto = v850_elf_howto_table + r_type; |
252b5132 RH |
1690 | h = NULL; |
1691 | sym = NULL; | |
1692 | sec = NULL; | |
1693 | if (r_symndx < symtab_hdr->sh_info) | |
1694 | { | |
1695 | sym = local_syms + r_symndx; | |
1696 | sec = local_sections[r_symndx]; | |
8517fae7 | 1697 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
1698 | } |
1699 | else | |
1700 | { | |
59c2e50f | 1701 | bfd_boolean unresolved_reloc, warned; |
435b1e90 | 1702 | |
b2a8e766 AM |
1703 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
1704 | r_symndx, symtab_hdr, sym_hashes, | |
1705 | h, sec, relocation, | |
1706 | unresolved_reloc, warned); | |
252b5132 RH |
1707 | } |
1708 | ||
e12dd2ea | 1709 | /* FIXME: We should use the addend, but the COFF relocations don't. */ |
252b5132 RH |
1710 | r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd, |
1711 | input_section, | |
1712 | contents, rel->r_offset, | |
1713 | relocation, rel->r_addend, | |
1714 | info, sec, h == NULL); | |
1715 | ||
1716 | if (r != bfd_reloc_ok) | |
1717 | { | |
1718 | const char * name; | |
1719 | const char * msg = (const char *)0; | |
1720 | ||
1721 | if (h != NULL) | |
1722 | name = h->root.root.string; | |
1723 | else | |
1724 | { | |
1725 | name = (bfd_elf_string_from_elf_section | |
1726 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1727 | if (name == NULL || *name == '\0') | |
1728 | name = bfd_section_name (input_bfd, sec); | |
1729 | } | |
1730 | ||
1731 | switch (r) | |
1732 | { | |
1733 | case bfd_reloc_overflow: | |
1734 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
1735 | (info, (h ? &h->root : NULL), name, howto->name, |
1736 | (bfd_vma) 0, input_bfd, input_section, | |
1737 | rel->r_offset))) | |
b34976b6 | 1738 | return FALSE; |
252b5132 RH |
1739 | break; |
1740 | ||
1741 | case bfd_reloc_undefined: | |
1742 | if (! ((*info->callbacks->undefined_symbol) | |
1743 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
1744 | rel->r_offset, TRUE))) |
1745 | return FALSE; | |
252b5132 RH |
1746 | break; |
1747 | ||
1748 | case bfd_reloc_outofrange: | |
1749 | msg = _("internal error: out of range error"); | |
1750 | goto common_error; | |
1751 | ||
1752 | case bfd_reloc_notsupported: | |
1753 | msg = _("internal error: unsupported relocation error"); | |
1754 | goto common_error; | |
1755 | ||
1756 | case bfd_reloc_dangerous: | |
1757 | msg = _("internal error: dangerous relocation"); | |
1758 | goto common_error; | |
1759 | ||
5cec6941 | 1760 | case bfd_reloc_gp_not_found: |
252b5132 RH |
1761 | msg = _("could not locate special linker symbol __gp"); |
1762 | goto common_error; | |
1763 | ||
5cec6941 | 1764 | case bfd_reloc_ep_not_found: |
252b5132 RH |
1765 | msg = _("could not locate special linker symbol __ep"); |
1766 | goto common_error; | |
1767 | ||
5cec6941 | 1768 | case bfd_reloc_ctbp_not_found: |
252b5132 RH |
1769 | msg = _("could not locate special linker symbol __ctbp"); |
1770 | goto common_error; | |
435b1e90 | 1771 | |
252b5132 RH |
1772 | default: |
1773 | msg = _("internal error: unknown error"); | |
1774 | /* fall through */ | |
1775 | ||
1776 | common_error: | |
1777 | if (!((*info->callbacks->warning) | |
1778 | (info, msg, name, input_bfd, input_section, | |
1779 | rel->r_offset))) | |
b34976b6 | 1780 | return FALSE; |
252b5132 RH |
1781 | break; |
1782 | } | |
1783 | } | |
1784 | } | |
1785 | ||
b34976b6 | 1786 | return TRUE; |
252b5132 RH |
1787 | } |
1788 | ||
b34976b6 | 1789 | static bfd_boolean |
252b5132 | 1790 | v850_elf_gc_sweep_hook (abfd, info, sec, relocs) |
5f771d47 ILT |
1791 | bfd *abfd ATTRIBUTE_UNUSED; |
1792 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1793 | asection *sec ATTRIBUTE_UNUSED; | |
1794 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; | |
252b5132 | 1795 | { |
e12dd2ea | 1796 | /* No got and plt entries for v850-elf. */ |
b34976b6 | 1797 | return TRUE; |
252b5132 RH |
1798 | } |
1799 | ||
1800 | static asection * | |
1e2f5b6e AM |
1801 | v850_elf_gc_mark_hook (sec, info, rel, h, sym) |
1802 | asection *sec; | |
5f771d47 | 1803 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1804 | Elf_Internal_Rela *rel; |
1805 | struct elf_link_hash_entry *h; | |
1806 | Elf_Internal_Sym *sym; | |
1807 | { | |
1808 | if (h != NULL) | |
1809 | { | |
1810 | switch (ELF32_R_TYPE (rel->r_info)) | |
1811 | { | |
1812 | case R_V850_GNU_VTINHERIT: | |
1813 | case R_V850_GNU_VTENTRY: | |
1814 | break; | |
1815 | ||
1816 | default: | |
1817 | switch (h->root.type) | |
1818 | { | |
1819 | case bfd_link_hash_defined: | |
1820 | case bfd_link_hash_defweak: | |
1821 | return h->root.u.def.section; | |
1822 | ||
1823 | case bfd_link_hash_common: | |
1824 | return h->root.u.c.p->section; | |
e049a0de ILT |
1825 | |
1826 | default: | |
1827 | break; | |
252b5132 RH |
1828 | } |
1829 | } | |
1830 | } | |
1831 | else | |
1e2f5b6e | 1832 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
9ad5cbcf | 1833 | |
252b5132 RH |
1834 | return NULL; |
1835 | } | |
e12dd2ea | 1836 | |
252b5132 | 1837 | /* Set the right machine number. */ |
e12dd2ea | 1838 | |
b34976b6 | 1839 | static bfd_boolean |
252b5132 RH |
1840 | v850_elf_object_p (abfd) |
1841 | bfd *abfd; | |
1842 | { | |
1843 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) | |
1844 | { | |
1845 | default: | |
250d94fd AM |
1846 | case E_V850_ARCH: |
1847 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850); | |
1848 | break; | |
1849 | case E_V850E_ARCH: | |
1850 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e); | |
1851 | break; | |
8ad30312 NC |
1852 | case E_V850E1_ARCH: |
1853 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e1); | |
1854 | break; | |
252b5132 | 1855 | } |
b34976b6 | 1856 | return TRUE; |
252b5132 RH |
1857 | } |
1858 | ||
1859 | /* Store the machine number in the flags field. */ | |
e12dd2ea | 1860 | |
252b5132 RH |
1861 | static void |
1862 | v850_elf_final_write_processing (abfd, linker) | |
b34976b6 AM |
1863 | bfd *abfd; |
1864 | bfd_boolean linker ATTRIBUTE_UNUSED; | |
252b5132 RH |
1865 | { |
1866 | unsigned long val; | |
1867 | ||
1868 | switch (bfd_get_mach (abfd)) | |
1869 | { | |
b34976b6 | 1870 | default: |
250d94fd AM |
1871 | case bfd_mach_v850: val = E_V850_ARCH; break; |
1872 | case bfd_mach_v850e: val = E_V850E_ARCH; break; | |
8ad30312 | 1873 | case bfd_mach_v850e1: val = E_V850E1_ARCH; break; |
252b5132 RH |
1874 | } |
1875 | ||
1876 | elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH; | |
1877 | elf_elfheader (abfd)->e_flags |= val; | |
1878 | } | |
1879 | ||
435b1e90 | 1880 | /* Function to keep V850 specific file flags. */ |
e12dd2ea | 1881 | |
b34976b6 | 1882 | static bfd_boolean |
252b5132 | 1883 | v850_elf_set_private_flags (abfd, flags) |
b34976b6 | 1884 | bfd *abfd; |
252b5132 RH |
1885 | flagword flags; |
1886 | { | |
1887 | BFD_ASSERT (!elf_flags_init (abfd) | |
1888 | || elf_elfheader (abfd)->e_flags == flags); | |
1889 | ||
1890 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
1891 | elf_flags_init (abfd) = TRUE; |
1892 | return TRUE; | |
252b5132 RH |
1893 | } |
1894 | ||
e12dd2ea NC |
1895 | /* Merge backend specific data from an object file |
1896 | to the output object file when linking. */ | |
b34976b6 | 1897 | static bfd_boolean |
252b5132 | 1898 | v850_elf_merge_private_bfd_data (ibfd, obfd) |
b34976b6 AM |
1899 | bfd *ibfd; |
1900 | bfd *obfd; | |
252b5132 RH |
1901 | { |
1902 | flagword out_flags; | |
1903 | flagword in_flags; | |
1904 | ||
1905 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1906 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 1907 | return TRUE; |
252b5132 RH |
1908 | |
1909 | in_flags = elf_elfheader (ibfd)->e_flags; | |
1910 | out_flags = elf_elfheader (obfd)->e_flags; | |
1911 | ||
1912 | if (! elf_flags_init (obfd)) | |
1913 | { | |
1914 | /* If the input is the default architecture then do not | |
1915 | bother setting the flags for the output architecture, | |
1916 | instead allow future merges to do this. If no future | |
1917 | merges ever set these flags then they will retain their | |
1918 | unitialised values, which surprise surprise, correspond | |
1919 | to the default values. */ | |
1920 | if (bfd_get_arch_info (ibfd)->the_default) | |
b34976b6 | 1921 | return TRUE; |
435b1e90 | 1922 | |
b34976b6 | 1923 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
1924 | elf_elfheader (obfd)->e_flags = in_flags; |
1925 | ||
1926 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
1927 | && bfd_get_arch_info (obfd)->the_default) | |
e12dd2ea | 1928 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); |
252b5132 | 1929 | |
b34976b6 | 1930 | return TRUE; |
252b5132 RH |
1931 | } |
1932 | ||
1933 | /* Check flag compatibility. */ | |
1934 | if (in_flags == out_flags) | |
b34976b6 | 1935 | return TRUE; |
252b5132 RH |
1936 | |
1937 | if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH) | |
1938 | && (in_flags & EF_V850_ARCH) != E_V850_ARCH) | |
8ad30312 NC |
1939 | { |
1940 | /* Allow v850e1 binaries to be linked with v850e binaries. | |
1941 | Set the output binary to v850e. */ | |
1942 | if ((in_flags & EF_V850_ARCH) == E_V850E1_ARCH | |
1943 | && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) | |
1944 | return TRUE; | |
1945 | ||
1946 | if ((in_flags & EF_V850_ARCH) == E_V850E_ARCH | |
1947 | && (out_flags & EF_V850_ARCH) == E_V850E1_ARCH) | |
1948 | { | |
1949 | elf_elfheader (obfd)->e_flags = | |
1950 | ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH); | |
1951 | return TRUE; | |
1952 | } | |
1953 | ||
d003868e AM |
1954 | _bfd_error_handler (_("%B: Architecture mismatch with previous modules"), |
1955 | ibfd); | |
8ad30312 | 1956 | } |
252b5132 | 1957 | |
b34976b6 | 1958 | return TRUE; |
252b5132 | 1959 | } |
e12dd2ea NC |
1960 | |
1961 | /* Display the flags field. */ | |
252b5132 | 1962 | |
b34976b6 | 1963 | static bfd_boolean |
252b5132 | 1964 | v850_elf_print_private_bfd_data (abfd, ptr) |
b34976b6 AM |
1965 | bfd *abfd; |
1966 | PTR ptr; | |
252b5132 RH |
1967 | { |
1968 | FILE * file = (FILE *) ptr; | |
435b1e90 | 1969 | |
252b5132 | 1970 | BFD_ASSERT (abfd != NULL && ptr != NULL); |
435b1e90 | 1971 | |
252b5132 | 1972 | _bfd_elf_print_private_bfd_data (abfd, ptr); |
435b1e90 | 1973 | |
252b5132 RH |
1974 | /* xgettext:c-format */ |
1975 | fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags); | |
435b1e90 | 1976 | |
252b5132 RH |
1977 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) |
1978 | { | |
1979 | default: | |
1980 | case E_V850_ARCH: fprintf (file, _("v850 architecture")); break; | |
1981 | case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break; | |
8ad30312 | 1982 | case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break; |
252b5132 | 1983 | } |
435b1e90 | 1984 | |
252b5132 | 1985 | fputc ('\n', file); |
435b1e90 | 1986 | |
b34976b6 | 1987 | return TRUE; |
252b5132 RH |
1988 | } |
1989 | ||
1990 | /* V850 ELF uses four common sections. One is the usual one, and the | |
1991 | others are for (small) objects in one of the special data areas: | |
1992 | small, tiny and zero. All the objects are kept together, and then | |
1993 | referenced via the gp register, the ep register or the r0 register | |
1994 | respectively, which yields smaller, faster assembler code. This | |
1995 | approach is copied from elf32-mips.c. */ | |
1996 | ||
1997 | static asection v850_elf_scom_section; | |
1998 | static asymbol v850_elf_scom_symbol; | |
1999 | static asymbol * v850_elf_scom_symbol_ptr; | |
2000 | static asection v850_elf_tcom_section; | |
2001 | static asymbol v850_elf_tcom_symbol; | |
2002 | static asymbol * v850_elf_tcom_symbol_ptr; | |
2003 | static asection v850_elf_zcom_section; | |
2004 | static asymbol v850_elf_zcom_symbol; | |
2005 | static asymbol * v850_elf_zcom_symbol_ptr; | |
2006 | ||
e12dd2ea NC |
2007 | /* Given a BFD section, try to locate the |
2008 | corresponding ELF section index. */ | |
252b5132 | 2009 | |
b34976b6 | 2010 | static bfd_boolean |
af746e92 | 2011 | v850_elf_section_from_bfd_section (abfd, sec, retval) |
b34976b6 AM |
2012 | bfd *abfd ATTRIBUTE_UNUSED; |
2013 | asection *sec; | |
2014 | int *retval; | |
252b5132 RH |
2015 | { |
2016 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
2017 | *retval = SHN_V850_SCOMMON; | |
2018 | else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0) | |
2019 | *retval = SHN_V850_TCOMMON; | |
2020 | else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0) | |
2021 | *retval = SHN_V850_ZCOMMON; | |
2022 | else | |
b34976b6 | 2023 | return FALSE; |
435b1e90 | 2024 | |
b34976b6 | 2025 | return TRUE; |
252b5132 RH |
2026 | } |
2027 | ||
2028 | /* Handle the special V850 section numbers that a symbol may use. */ | |
2029 | ||
2030 | static void | |
2031 | v850_elf_symbol_processing (abfd, asym) | |
b34976b6 AM |
2032 | bfd *abfd; |
2033 | asymbol *asym; | |
252b5132 RH |
2034 | { |
2035 | elf_symbol_type * elfsym = (elf_symbol_type *) asym; | |
9ad5cbcf | 2036 | unsigned int indx; |
435b1e90 | 2037 | |
9ad5cbcf | 2038 | indx = elfsym->internal_elf_sym.st_shndx; |
252b5132 RH |
2039 | |
2040 | /* If the section index is an "ordinary" index, then it may | |
2041 | refer to a v850 specific section created by the assembler. | |
2042 | Check the section's type and change the index it matches. | |
435b1e90 | 2043 | |
252b5132 | 2044 | FIXME: Should we alter the st_shndx field as well ? */ |
435b1e90 | 2045 | |
9ad5cbcf AM |
2046 | if (indx < elf_numsections (abfd)) |
2047 | switch (elf_elfsections(abfd)[indx]->sh_type) | |
252b5132 RH |
2048 | { |
2049 | case SHT_V850_SCOMMON: | |
9ad5cbcf | 2050 | indx = SHN_V850_SCOMMON; |
252b5132 | 2051 | break; |
435b1e90 | 2052 | |
252b5132 | 2053 | case SHT_V850_TCOMMON: |
9ad5cbcf | 2054 | indx = SHN_V850_TCOMMON; |
252b5132 | 2055 | break; |
435b1e90 | 2056 | |
252b5132 | 2057 | case SHT_V850_ZCOMMON: |
9ad5cbcf | 2058 | indx = SHN_V850_ZCOMMON; |
252b5132 | 2059 | break; |
435b1e90 | 2060 | |
252b5132 RH |
2061 | default: |
2062 | break; | |
2063 | } | |
435b1e90 | 2064 | |
9ad5cbcf | 2065 | switch (indx) |
252b5132 RH |
2066 | { |
2067 | case SHN_V850_SCOMMON: | |
2068 | if (v850_elf_scom_section.name == NULL) | |
2069 | { | |
2070 | /* Initialize the small common section. */ | |
2071 | v850_elf_scom_section.name = ".scommon"; | |
2072 | v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA; | |
2073 | v850_elf_scom_section.output_section = & v850_elf_scom_section; | |
2074 | v850_elf_scom_section.symbol = & v850_elf_scom_symbol; | |
2075 | v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr; | |
2076 | v850_elf_scom_symbol.name = ".scommon"; | |
2077 | v850_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
2078 | v850_elf_scom_symbol.section = & v850_elf_scom_section; | |
2079 | v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol; | |
2080 | } | |
2081 | asym->section = & v850_elf_scom_section; | |
2082 | asym->value = elfsym->internal_elf_sym.st_size; | |
2083 | break; | |
435b1e90 | 2084 | |
252b5132 RH |
2085 | case SHN_V850_TCOMMON: |
2086 | if (v850_elf_tcom_section.name == NULL) | |
2087 | { | |
2088 | /* Initialize the tcommon section. */ | |
2089 | v850_elf_tcom_section.name = ".tcommon"; | |
2090 | v850_elf_tcom_section.flags = SEC_IS_COMMON; | |
2091 | v850_elf_tcom_section.output_section = & v850_elf_tcom_section; | |
2092 | v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol; | |
2093 | v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr; | |
2094 | v850_elf_tcom_symbol.name = ".tcommon"; | |
2095 | v850_elf_tcom_symbol.flags = BSF_SECTION_SYM; | |
2096 | v850_elf_tcom_symbol.section = & v850_elf_tcom_section; | |
2097 | v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol; | |
2098 | } | |
2099 | asym->section = & v850_elf_tcom_section; | |
2100 | asym->value = elfsym->internal_elf_sym.st_size; | |
2101 | break; | |
2102 | ||
2103 | case SHN_V850_ZCOMMON: | |
2104 | if (v850_elf_zcom_section.name == NULL) | |
2105 | { | |
2106 | /* Initialize the zcommon section. */ | |
2107 | v850_elf_zcom_section.name = ".zcommon"; | |
2108 | v850_elf_zcom_section.flags = SEC_IS_COMMON; | |
2109 | v850_elf_zcom_section.output_section = & v850_elf_zcom_section; | |
2110 | v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol; | |
2111 | v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr; | |
2112 | v850_elf_zcom_symbol.name = ".zcommon"; | |
2113 | v850_elf_zcom_symbol.flags = BSF_SECTION_SYM; | |
2114 | v850_elf_zcom_symbol.section = & v850_elf_zcom_section; | |
2115 | v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol; | |
2116 | } | |
2117 | asym->section = & v850_elf_zcom_section; | |
2118 | asym->value = elfsym->internal_elf_sym.st_size; | |
2119 | break; | |
2120 | } | |
2121 | } | |
2122 | ||
2123 | /* Hook called by the linker routine which adds symbols from an object | |
2124 | file. We must handle the special v850 section numbers here. */ | |
2125 | ||
b34976b6 | 2126 | static bfd_boolean |
252b5132 | 2127 | v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
b34976b6 AM |
2128 | bfd *abfd; |
2129 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
555cd476 | 2130 | Elf_Internal_Sym *sym; |
b34976b6 AM |
2131 | const char **namep ATTRIBUTE_UNUSED; |
2132 | flagword *flagsp ATTRIBUTE_UNUSED; | |
2133 | asection **secp; | |
2134 | bfd_vma *valp; | |
252b5132 | 2135 | { |
9ad5cbcf | 2136 | unsigned int indx = sym->st_shndx; |
435b1e90 | 2137 | |
252b5132 RH |
2138 | /* If the section index is an "ordinary" index, then it may |
2139 | refer to a v850 specific section created by the assembler. | |
2140 | Check the section's type and change the index it matches. | |
435b1e90 | 2141 | |
252b5132 | 2142 | FIXME: Should we alter the st_shndx field as well ? */ |
435b1e90 | 2143 | |
9ad5cbcf AM |
2144 | if (indx < elf_numsections (abfd)) |
2145 | switch (elf_elfsections(abfd)[indx]->sh_type) | |
252b5132 RH |
2146 | { |
2147 | case SHT_V850_SCOMMON: | |
9ad5cbcf | 2148 | indx = SHN_V850_SCOMMON; |
252b5132 | 2149 | break; |
435b1e90 | 2150 | |
252b5132 | 2151 | case SHT_V850_TCOMMON: |
9ad5cbcf | 2152 | indx = SHN_V850_TCOMMON; |
252b5132 | 2153 | break; |
435b1e90 | 2154 | |
252b5132 | 2155 | case SHT_V850_ZCOMMON: |
9ad5cbcf | 2156 | indx = SHN_V850_ZCOMMON; |
252b5132 | 2157 | break; |
435b1e90 | 2158 | |
252b5132 RH |
2159 | default: |
2160 | break; | |
2161 | } | |
435b1e90 | 2162 | |
9ad5cbcf | 2163 | switch (indx) |
252b5132 RH |
2164 | { |
2165 | case SHN_V850_SCOMMON: | |
2166 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
2167 | (*secp)->flags |= SEC_IS_COMMON; | |
2168 | *valp = sym->st_size; | |
2169 | break; | |
435b1e90 | 2170 | |
252b5132 RH |
2171 | case SHN_V850_TCOMMON: |
2172 | *secp = bfd_make_section_old_way (abfd, ".tcommon"); | |
2173 | (*secp)->flags |= SEC_IS_COMMON; | |
2174 | *valp = sym->st_size; | |
2175 | break; | |
435b1e90 | 2176 | |
252b5132 RH |
2177 | case SHN_V850_ZCOMMON: |
2178 | *secp = bfd_make_section_old_way (abfd, ".zcommon"); | |
2179 | (*secp)->flags |= SEC_IS_COMMON; | |
2180 | *valp = sym->st_size; | |
2181 | break; | |
2182 | } | |
2183 | ||
b34976b6 | 2184 | return TRUE; |
252b5132 RH |
2185 | } |
2186 | ||
b34976b6 | 2187 | static bfd_boolean |
754021d0 | 2188 | v850_elf_link_output_symbol_hook (info, name, sym, input_sec, h) |
b34976b6 AM |
2189 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
2190 | const char *name ATTRIBUTE_UNUSED; | |
2191 | Elf_Internal_Sym *sym; | |
2192 | asection *input_sec; | |
754021d0 | 2193 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED; |
252b5132 RH |
2194 | { |
2195 | /* If we see a common symbol, which implies a relocatable link, then | |
2196 | if a symbol was in a special common section in an input file, mark | |
2197 | it as a special common in the output file. */ | |
435b1e90 | 2198 | |
252b5132 RH |
2199 | if (sym->st_shndx == SHN_COMMON) |
2200 | { | |
2201 | if (strcmp (input_sec->name, ".scommon") == 0) | |
2202 | sym->st_shndx = SHN_V850_SCOMMON; | |
2203 | else if (strcmp (input_sec->name, ".tcommon") == 0) | |
2204 | sym->st_shndx = SHN_V850_TCOMMON; | |
2205 | else if (strcmp (input_sec->name, ".zcommon") == 0) | |
2206 | sym->st_shndx = SHN_V850_ZCOMMON; | |
2207 | } | |
2208 | ||
b34976b6 | 2209 | return TRUE; |
252b5132 RH |
2210 | } |
2211 | ||
b34976b6 | 2212 | static bfd_boolean |
252b5132 | 2213 | v850_elf_section_from_shdr (abfd, hdr, name) |
b34976b6 AM |
2214 | bfd *abfd; |
2215 | Elf_Internal_Shdr *hdr; | |
2216 | const char *name; | |
252b5132 RH |
2217 | { |
2218 | /* There ought to be a place to keep ELF backend specific flags, but | |
2219 | at the moment there isn't one. We just keep track of the | |
2220 | sections by their name, instead. */ | |
2221 | ||
2222 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) | |
b34976b6 | 2223 | return FALSE; |
252b5132 RH |
2224 | |
2225 | switch (hdr->sh_type) | |
2226 | { | |
2227 | case SHT_V850_SCOMMON: | |
2228 | case SHT_V850_TCOMMON: | |
2229 | case SHT_V850_ZCOMMON: | |
2230 | if (! bfd_set_section_flags (abfd, hdr->bfd_section, | |
2231 | (bfd_get_section_flags (abfd, | |
2232 | hdr->bfd_section) | |
2233 | | SEC_IS_COMMON))) | |
b34976b6 | 2234 | return FALSE; |
252b5132 RH |
2235 | } |
2236 | ||
b34976b6 | 2237 | return TRUE; |
252b5132 RH |
2238 | } |
2239 | ||
e12dd2ea NC |
2240 | /* Set the correct type for a V850 ELF section. We do this |
2241 | by the section name, which is a hack, but ought to work. */ | |
2242 | ||
b34976b6 | 2243 | static bfd_boolean |
252b5132 | 2244 | v850_elf_fake_sections (abfd, hdr, sec) |
b34976b6 AM |
2245 | bfd *abfd ATTRIBUTE_UNUSED; |
2246 | Elf_Internal_Shdr *hdr; | |
2247 | asection *sec; | |
252b5132 RH |
2248 | { |
2249 | register const char * name; | |
2250 | ||
2251 | name = bfd_get_section_name (abfd, sec); | |
2252 | ||
2253 | if (strcmp (name, ".scommon") == 0) | |
2254 | { | |
2255 | hdr->sh_type = SHT_V850_SCOMMON; | |
2256 | } | |
2257 | else if (strcmp (name, ".tcommon") == 0) | |
2258 | { | |
2259 | hdr->sh_type = SHT_V850_TCOMMON; | |
2260 | } | |
2261 | else if (strcmp (name, ".zcommon") == 0) | |
2262 | hdr->sh_type = SHT_V850_ZCOMMON; | |
435b1e90 | 2263 | |
b34976b6 | 2264 | return TRUE; |
252b5132 | 2265 | } |
86aba9db NC |
2266 | |
2267 | /* Delete some bytes from a section while relaxing. */ | |
2268 | ||
b34976b6 | 2269 | static bfd_boolean |
86aba9db | 2270 | v850_elf_relax_delete_bytes (abfd, sec, addr, toaddr, count) |
b34976b6 AM |
2271 | bfd *abfd; |
2272 | asection *sec; | |
2273 | bfd_vma addr; | |
2274 | bfd_vma toaddr; | |
2275 | int count; | |
86aba9db | 2276 | { |
b34976b6 AM |
2277 | Elf_Internal_Shdr *symtab_hdr; |
2278 | Elf32_External_Sym *extsyms; | |
2279 | Elf32_External_Sym *esym; | |
2280 | Elf32_External_Sym *esymend; | |
2281 | int index; | |
2282 | unsigned int sec_shndx; | |
2283 | bfd_byte *contents; | |
2284 | Elf_Internal_Rela *irel; | |
2285 | Elf_Internal_Rela *irelend; | |
2286 | struct elf_link_hash_entry *sym_hash; | |
2287 | Elf_Internal_Shdr *shndx_hdr; | |
2288 | Elf_External_Sym_Shndx *shndx; | |
86aba9db NC |
2289 | |
2290 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2291 | extsyms = (Elf32_External_Sym *) symtab_hdr->contents; | |
2292 | ||
2293 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
2294 | ||
2295 | contents = elf_section_data (sec)->this_hdr.contents; | |
2296 | ||
2297 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
2298 | power larger than the number of bytes we are deleting. */ | |
2299 | ||
2300 | /* Actually delete the bytes. */ | |
2301 | #if (DEBUG_RELAX & 2) | |
2302 | fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n", | |
2303 | sec->name, addr, toaddr, count ); | |
2304 | #endif | |
2305 | memmove (contents + addr, contents + addr + count, | |
2306 | toaddr - addr - count); | |
2307 | memset (contents + toaddr-count, 0, count); | |
2308 | ||
2309 | /* Adjust all the relocs. */ | |
2310 | irel = elf_section_data (sec)->relocs; | |
2311 | irelend = irel + sec->reloc_count; | |
2312 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
2313 | shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; | |
2314 | ||
2315 | for (; irel < irelend; irel++) | |
2316 | { | |
2317 | bfd_vma raddr, paddr, symval; | |
2318 | Elf_Internal_Sym isym; | |
2319 | ||
2320 | /* Get the new reloc address. */ | |
2321 | raddr = irel->r_offset; | |
2322 | if ((raddr >= (addr + count) && raddr < toaddr)) | |
b34976b6 | 2323 | irel->r_offset -= count; |
86aba9db NC |
2324 | |
2325 | if (raddr >= addr && raddr < addr + count) | |
2326 | { | |
2327 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2328 | (int) R_V850_NONE); | |
2329 | continue; | |
2330 | } | |
b34976b6 | 2331 | |
86aba9db NC |
2332 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN) |
2333 | continue; | |
2334 | ||
2335 | bfd_elf32_swap_symbol_in (abfd, | |
2336 | extsyms + ELF32_R_SYM (irel->r_info), | |
2337 | shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL, | |
2338 | & isym); | |
b34976b6 | 2339 | |
86aba9db NC |
2340 | if (isym.st_shndx != sec_shndx) |
2341 | continue; | |
2342 | ||
2343 | /* Get the value of the symbol referred to by the reloc. */ | |
2344 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
2345 | { | |
2346 | symval = isym.st_value; | |
2347 | #if (DEBUG_RELAX & 2) | |
2348 | { | |
2349 | char * name = bfd_elf_string_from_elf_section | |
2350 | (abfd, symtab_hdr->sh_link, isym.st_name); | |
2351 | fprintf (stderr, | |
2352 | "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", | |
2353 | sec->name, name, isym.st_name, | |
2354 | sec->output_section->vma, sec->output_offset, | |
2355 | isym.st_value, irel->r_addend); | |
2356 | } | |
2357 | #endif | |
2358 | } | |
2359 | else | |
2360 | { | |
2361 | unsigned long indx; | |
2362 | struct elf_link_hash_entry * h; | |
2363 | ||
2364 | /* An external symbol. */ | |
2365 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2366 | ||
2367 | h = elf_sym_hashes (abfd) [indx]; | |
2368 | BFD_ASSERT (h != NULL); | |
2369 | ||
2370 | symval = h->root.u.def.value; | |
2371 | #if (DEBUG_RELAX & 2) | |
2372 | fprintf (stderr, | |
2373 | "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", | |
2374 | sec->name, h->root.root.string, h->root.u.def.value, | |
2375 | sec->output_section->vma, sec->output_offset, irel->r_addend); | |
2376 | #endif | |
2377 | } | |
b34976b6 | 2378 | |
86aba9db | 2379 | paddr = symval + irel->r_addend; |
b34976b6 | 2380 | |
86aba9db NC |
2381 | if ( (symval >= addr + count && symval < toaddr) |
2382 | && (paddr < addr + count || paddr >= toaddr)) | |
2383 | irel->r_addend += count; | |
2384 | else if ( (symval < addr + count || symval >= toaddr) | |
2385 | && (paddr >= addr + count && paddr < toaddr)) | |
2386 | irel->r_addend -= count; | |
2387 | } | |
2388 | ||
2389 | /* Adjust the local symbols defined in this section. */ | |
2390 | esym = extsyms; | |
2391 | esymend = esym + symtab_hdr->sh_info; | |
2392 | ||
2393 | for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) | |
2394 | { | |
2395 | Elf_Internal_Sym isym; | |
2396 | ||
2397 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); | |
2398 | ||
2399 | if (isym.st_shndx == sec_shndx | |
2400 | && isym.st_value >= addr + count | |
2401 | && isym.st_value < toaddr) | |
2402 | { | |
2403 | isym.st_value -= count; | |
2404 | ||
2405 | if (isym.st_value + isym.st_size >= toaddr) | |
b34976b6 AM |
2406 | isym.st_size += count; |
2407 | ||
63a23799 | 2408 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2409 | } |
2410 | else if (isym.st_shndx == sec_shndx | |
2411 | && isym.st_value < addr + count) | |
2412 | { | |
2413 | if (isym.st_value+isym.st_size >= addr + count | |
2414 | && isym.st_value+isym.st_size < toaddr) | |
2415 | isym.st_size -= count; | |
2416 | ||
2417 | if (isym.st_value >= addr | |
2418 | && isym.st_value < addr + count) | |
2419 | isym.st_value = addr; | |
2420 | ||
63a23799 | 2421 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2422 | } |
2423 | } | |
2424 | ||
2425 | /* Now adjust the global symbols defined in this section. */ | |
2426 | esym = extsyms + symtab_hdr->sh_info; | |
2427 | esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); | |
2428 | ||
2429 | for (index = 0; esym < esymend; esym ++, index ++) | |
2430 | { | |
2431 | Elf_Internal_Sym isym; | |
2432 | ||
2433 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); | |
2434 | sym_hash = elf_sym_hashes (abfd) [index]; | |
2435 | ||
2436 | if (isym.st_shndx == sec_shndx | |
2437 | && ((sym_hash)->root.type == bfd_link_hash_defined | |
2438 | || (sym_hash)->root.type == bfd_link_hash_defweak) | |
2439 | && (sym_hash)->root.u.def.section == sec | |
2440 | && (sym_hash)->root.u.def.value >= addr + count | |
2441 | && (sym_hash)->root.u.def.value < toaddr) | |
2442 | { | |
2443 | if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr) | |
2444 | { | |
2445 | isym.st_size += count; | |
63a23799 | 2446 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2447 | } |
2448 | ||
2449 | (sym_hash)->root.u.def.value -= count; | |
2450 | } | |
2451 | else if (isym.st_shndx == sec_shndx | |
2452 | && ((sym_hash)->root.type == bfd_link_hash_defined | |
2453 | || (sym_hash)->root.type == bfd_link_hash_defweak) | |
2454 | && (sym_hash)->root.u.def.section == sec | |
2455 | && (sym_hash)->root.u.def.value < addr + count) | |
2456 | { | |
2457 | if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count | |
2458 | && (sym_hash)->root.u.def.value+isym.st_size < toaddr) | |
2459 | isym.st_size -= count; | |
2460 | ||
2461 | if ((sym_hash)->root.u.def.value >= addr | |
2462 | && (sym_hash)->root.u.def.value < addr + count) | |
2463 | (sym_hash)->root.u.def.value = addr; | |
2464 | ||
63a23799 | 2465 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2466 | } |
2467 | ||
2468 | if (shndx) | |
2469 | ++ shndx; | |
2470 | } | |
2471 | ||
b34976b6 | 2472 | return TRUE; |
86aba9db NC |
2473 | } |
2474 | ||
2475 | #define NOP_OPCODE (0x0000) | |
b34976b6 | 2476 | #define MOVHI 0x0640 /* 4byte */ |
86aba9db | 2477 | #define MOVHI_MASK 0x07e0 |
b34976b6 | 2478 | #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte */ |
86aba9db NC |
2479 | #define MOVHI_R2(insn) ((insn) >> 11) |
2480 | #define MOVEA 0x0620 /* 2byte */ | |
2481 | #define MOVEA_MASK 0x07e0 | |
2482 | #define MOVEA_R1(insn) ((insn) & 0x1f) | |
2483 | #define MOVEA_R2(insn) ((insn) >> 11) | |
2484 | #define JARL_4 0x00040780 /* 4byte */ | |
2485 | #define JARL_4_MASK 0xFFFF07FF | |
2486 | #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11) | |
2487 | #define ADD_I 0x0240 /* 2byte */ | |
2488 | #define ADD_I_MASK 0x07e0 | |
2489 | #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte */ | |
2490 | #define ADD_R2(insn) ((insn) >> 11) | |
2491 | #define JMP_R 0x0060 /* 2byte */ | |
2492 | #define JMP_R_MASK 0xFFE0 | |
2493 | #define JMP_R1(insn) ((insn) & 0x1f) | |
2494 | ||
b34976b6 | 2495 | static bfd_boolean |
86aba9db | 2496 | v850_elf_relax_section (abfd, sec, link_info, again) |
b34976b6 AM |
2497 | bfd *abfd; |
2498 | asection *sec; | |
2499 | struct bfd_link_info *link_info; | |
2500 | bfd_boolean *again; | |
86aba9db | 2501 | { |
b34976b6 AM |
2502 | Elf_Internal_Shdr *symtab_hdr; |
2503 | Elf_Internal_Rela *internal_relocs; | |
2504 | Elf_Internal_Rela *irel; | |
2505 | Elf_Internal_Rela *irelend; | |
2506 | Elf_Internal_Rela *irelalign = NULL; | |
2507 | Elf_Internal_Sym *isymbuf = NULL; | |
2508 | bfd_byte *contents = NULL; | |
2509 | bfd_vma addr = 0; | |
2510 | bfd_vma toaddr; | |
2511 | int align_pad_size = 0; | |
2512 | bfd_boolean result = TRUE; | |
2513 | ||
2514 | *again = FALSE; | |
86aba9db | 2515 | |
1049f94e | 2516 | if (link_info->relocatable |
86aba9db NC |
2517 | || (sec->flags & SEC_RELOC) == 0 |
2518 | || sec->reloc_count == 0) | |
b34976b6 | 2519 | return TRUE; |
86aba9db | 2520 | |
86aba9db NC |
2521 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; |
2522 | ||
45d6a902 | 2523 | internal_relocs = (_bfd_elf_link_read_relocs |
86aba9db NC |
2524 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
2525 | link_info->keep_memory)); | |
2526 | if (internal_relocs == NULL) | |
2527 | goto error_return; | |
86aba9db NC |
2528 | |
2529 | irelend = internal_relocs + sec->reloc_count; | |
b34976b6 | 2530 | |
eea6121a | 2531 | while (addr < sec->size) |
86aba9db | 2532 | { |
eea6121a | 2533 | toaddr = sec->size; |
86aba9db NC |
2534 | |
2535 | for (irel = internal_relocs; irel < irelend; irel ++) | |
2536 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN | |
2537 | && irel->r_offset > addr | |
2538 | && irel->r_offset < toaddr) | |
2539 | toaddr = irel->r_offset; | |
b34976b6 | 2540 | |
86aba9db NC |
2541 | #ifdef DEBUG_RELAX |
2542 | fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n", | |
2543 | addr, toaddr, align_pad_size); | |
2544 | #endif | |
2545 | if (irelalign) | |
2546 | { | |
2547 | bfd_vma alignto; | |
2548 | bfd_vma alignmoveto; | |
2549 | ||
2550 | alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend); | |
2551 | alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend); | |
2552 | ||
2553 | if (alignmoveto < alignto) | |
2554 | { | |
2555 | unsigned int i; | |
2556 | ||
2557 | align_pad_size = alignto - alignmoveto; | |
2558 | #ifdef DEBUG_RELAX | |
2559 | fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n", | |
2560 | alignmoveto, toaddr, align_pad_size); | |
2561 | #endif | |
2562 | if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto, | |
2563 | toaddr, align_pad_size)) | |
b34976b6 | 2564 | goto error_return; |
86aba9db NC |
2565 | |
2566 | for (i = BFD_ALIGN (toaddr - align_pad_size, 1); | |
2567 | (i + 1) < toaddr; i += 2) | |
2568 | bfd_put_16 (abfd, NOP_OPCODE, contents + i); | |
2569 | ||
2570 | addr = alignmoveto; | |
2571 | } | |
2572 | else | |
2573 | align_pad_size = 0; | |
2574 | } | |
2575 | ||
2576 | for (irel = internal_relocs; irel < irelend; irel++) | |
2577 | { | |
b34976b6 AM |
2578 | bfd_vma laddr; |
2579 | bfd_vma addend; | |
2580 | bfd_vma symval; | |
2581 | int insn[5]; | |
2582 | int no_match = -1; | |
2583 | Elf_Internal_Rela *hi_irelfn; | |
2584 | Elf_Internal_Rela *lo_irelfn; | |
2585 | Elf_Internal_Rela *irelcall; | |
2586 | bfd_signed_vma foff; | |
86aba9db NC |
2587 | |
2588 | if (! (irel->r_offset >= addr && irel->r_offset < toaddr | |
2589 | && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL | |
2590 | || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP))) | |
2591 | continue; | |
2592 | ||
2593 | #ifdef DEBUG_RELAX | |
2594 | fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n", | |
2595 | irel->r_info, | |
2596 | irel->r_offset, | |
2597 | irel->r_addend ); | |
2598 | #endif | |
2599 | ||
2600 | /* Get the section contents. */ | |
2601 | if (contents == NULL) | |
2602 | { | |
2603 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
2604 | contents = elf_section_data (sec)->this_hdr.contents; | |
2605 | else | |
2606 | { | |
eea6121a | 2607 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
86aba9db NC |
2608 | goto error_return; |
2609 | } | |
2610 | } | |
2611 | ||
5cec6941 NC |
2612 | /* Read this BFD's local symbols if we haven't done so already. */ |
2613 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) | |
86aba9db | 2614 | { |
5cec6941 NC |
2615 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
2616 | if (isymbuf == NULL) | |
2617 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
2618 | symtab_hdr->sh_info, 0, | |
2619 | NULL, NULL, NULL); | |
2620 | if (isymbuf == NULL) | |
2621 | goto error_return; | |
86aba9db NC |
2622 | } |
2623 | ||
2624 | laddr = irel->r_offset; | |
2625 | ||
2626 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL) | |
2627 | { | |
2628 | /* Check code for -mlong-calls output. */ | |
eea6121a | 2629 | if (laddr + 16 <= (bfd_vma) sec->size) |
86aba9db NC |
2630 | { |
2631 | insn[0] = bfd_get_16 (abfd, contents + laddr); | |
2632 | insn[1] = bfd_get_16 (abfd, contents + laddr + 4); | |
2633 | insn[2] = bfd_get_32 (abfd, contents + laddr + 8); | |
2634 | insn[3] = bfd_get_16 (abfd, contents + laddr + 12); | |
2635 | insn[4] = bfd_get_16 (abfd, contents + laddr + 14); | |
b34976b6 | 2636 | |
86aba9db NC |
2637 | if ((insn[0] & MOVHI_MASK) != MOVHI |
2638 | || MOVHI_R1 (insn[0]) != 0) | |
2639 | no_match = 0; | |
2640 | ||
2641 | if (no_match < 0 | |
2642 | && ((insn[1] & MOVEA_MASK) != MOVEA | |
2643 | || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) | |
2644 | no_match = 1; | |
2645 | ||
2646 | if (no_match < 0 | |
2647 | && (insn[2] & JARL_4_MASK) != JARL_4) | |
2648 | no_match = 2; | |
2649 | ||
2650 | if (no_match < 0 | |
2651 | && ((insn[3] & ADD_I_MASK) != ADD_I | |
2652 | || ADD_I5 (insn[3]) != 4 | |
2653 | || JARL_R2 (insn[2]) != ADD_R2 (insn[3]))) | |
2654 | no_match = 3; | |
2655 | ||
2656 | if (no_match < 0 | |
2657 | && ((insn[4] & JMP_R_MASK) != JMP_R | |
2658 | || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4]))) | |
2659 | no_match = 4; | |
2660 | } | |
2661 | else | |
2662 | { | |
2663 | ((*_bfd_error_handler) | |
2664 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns", | |
2665 | bfd_get_filename (abfd), (unsigned long) irel->r_offset)); | |
2666 | ||
2667 | continue; | |
2668 | } | |
2669 | ||
2670 | if (no_match >= 0) | |
2671 | { | |
2672 | ((*_bfd_error_handler) | |
2673 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x", | |
2674 | bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); | |
2675 | ||
2676 | continue; | |
b34976b6 | 2677 | } |
86aba9db NC |
2678 | |
2679 | /* Get the reloc for the address from which the register is | |
2680 | being loaded. This reloc will tell us which function is | |
2681 | actually being called. */ | |
2682 | for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) | |
2683 | if (hi_irelfn->r_offset == laddr + 2 | |
b34976b6 | 2684 | && ELF32_R_TYPE (hi_irelfn->r_info) |
86aba9db NC |
2685 | == (int) R_V850_HI16_S) |
2686 | break; | |
2687 | ||
2688 | for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) | |
2689 | if (lo_irelfn->r_offset == laddr + 6 | |
2690 | && ELF32_R_TYPE (lo_irelfn->r_info) | |
2691 | == (int) R_V850_LO16) | |
2692 | break; | |
2693 | ||
2694 | for (irelcall = internal_relocs; irelcall < irelend; irelcall ++) | |
2695 | if (irelcall->r_offset == laddr + 8 | |
2696 | && ELF32_R_TYPE (irelcall->r_info) | |
2697 | == (int) R_V850_22_PCREL) | |
2698 | break; | |
2699 | ||
2700 | if ( hi_irelfn == irelend | |
2701 | || lo_irelfn == irelend | |
2702 | || irelcall == irelend) | |
2703 | { | |
2704 | ((*_bfd_error_handler) | |
2705 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc", | |
2706 | bfd_get_filename (abfd), (unsigned long) irel->r_offset )); | |
2707 | ||
2708 | continue; | |
2709 | } | |
b34976b6 | 2710 | |
86aba9db NC |
2711 | if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info) |
2712 | { | |
5cec6941 | 2713 | Elf_Internal_Sym * isym; |
86aba9db NC |
2714 | |
2715 | /* A local symbol. */ | |
5cec6941 | 2716 | isym = isymbuf + ELF32_R_SYM (irelcall->r_info); |
86aba9db | 2717 | |
5cec6941 | 2718 | symval = isym->st_value; |
86aba9db NC |
2719 | } |
2720 | else | |
2721 | { | |
2722 | unsigned long indx; | |
2723 | struct elf_link_hash_entry * h; | |
2724 | ||
2725 | /* An external symbol. */ | |
2726 | indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info; | |
2727 | h = elf_sym_hashes (abfd)[indx]; | |
2728 | BFD_ASSERT (h != NULL); | |
2729 | ||
2730 | if ( h->root.type != bfd_link_hash_defined | |
2731 | && h->root.type != bfd_link_hash_defweak) | |
2732 | /* This appears to be a reference to an undefined | |
2733 | symbol. Just ignore it--it will be caught by the | |
2734 | regular reloc processing. */ | |
2735 | continue; | |
2736 | ||
2737 | symval = h->root.u.def.value; | |
2738 | } | |
2739 | ||
2740 | if (symval + irelcall->r_addend != irelcall->r_offset + 4) | |
2741 | { | |
2742 | ((*_bfd_error_handler) | |
2743 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx", | |
2744 | bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset )); | |
2745 | ||
2746 | continue; | |
2747 | } | |
2748 | ||
2749 | /* Get the value of the symbol referred to by the reloc. */ | |
2750 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
2751 | { | |
b34976b6 AM |
2752 | Elf_Internal_Sym *isym; |
2753 | asection *sym_sec; | |
86aba9db NC |
2754 | |
2755 | /* A local symbol. */ | |
5cec6941 | 2756 | isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); |
b34976b6 | 2757 | |
5cec6941 | 2758 | if (isym->st_shndx == SHN_UNDEF) |
86aba9db | 2759 | sym_sec = bfd_und_section_ptr; |
5cec6941 | 2760 | else if (isym->st_shndx == SHN_ABS) |
86aba9db | 2761 | sym_sec = bfd_abs_section_ptr; |
5cec6941 | 2762 | else if (isym->st_shndx == SHN_COMMON) |
86aba9db NC |
2763 | sym_sec = bfd_com_section_ptr; |
2764 | else | |
5cec6941 NC |
2765 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
2766 | symval = (isym->st_value | |
86aba9db NC |
2767 | + sym_sec->output_section->vma |
2768 | + sym_sec->output_offset); | |
2769 | } | |
2770 | else | |
2771 | { | |
2772 | unsigned long indx; | |
b34976b6 | 2773 | struct elf_link_hash_entry *h; |
86aba9db NC |
2774 | |
2775 | /* An external symbol. */ | |
5cec6941 | 2776 | indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; |
86aba9db NC |
2777 | h = elf_sym_hashes (abfd)[indx]; |
2778 | BFD_ASSERT (h != NULL); | |
2779 | ||
2780 | if ( h->root.type != bfd_link_hash_defined | |
2781 | && h->root.type != bfd_link_hash_defweak) | |
2782 | /* This appears to be a reference to an undefined | |
2783 | symbol. Just ignore it--it will be caught by the | |
2784 | regular reloc processing. */ | |
2785 | continue; | |
2786 | ||
2787 | symval = (h->root.u.def.value | |
2788 | + h->root.u.def.section->output_section->vma | |
2789 | + h->root.u.def.section->output_offset); | |
2790 | } | |
2791 | ||
2792 | addend = irel->r_addend; | |
2793 | ||
2794 | foff = (symval + addend | |
2795 | - (irel->r_offset | |
2796 | + sec->output_section->vma | |
2797 | + sec->output_offset | |
2798 | + 4)); | |
2799 | #ifdef DEBUG_RELAX | |
2800 | fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", | |
2801 | irel->r_offset, | |
2802 | (irel->r_offset | |
2803 | + sec->output_section->vma | |
2804 | + sec->output_offset), | |
2805 | symval, addend, foff); | |
2806 | #endif | |
2807 | ||
2808 | if (foff < -0x100000 || foff >= 0x100000) | |
2809 | /* After all that work, we can't shorten this function call. */ | |
2810 | continue; | |
2811 | ||
2812 | /* For simplicity of coding, we are going to modify the section | |
2813 | contents, the section relocs, and the BFD symbol table. We | |
2814 | must tell the rest of the code not to free up this | |
2815 | information. It would be possible to instead create a table | |
2816 | of changes which have to be made, as is done in coff-mips.c; | |
2817 | that would be more work, but would require less memory when | |
2818 | the linker is run. */ | |
2819 | elf_section_data (sec)->relocs = internal_relocs; | |
86aba9db | 2820 | elf_section_data (sec)->this_hdr.contents = contents; |
5cec6941 | 2821 | symtab_hdr->contents = (bfd_byte *) isymbuf; |
b34976b6 | 2822 | |
86aba9db NC |
2823 | /* Replace the long call with a jarl. */ |
2824 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL); | |
2825 | ||
2826 | addend = 0; | |
2827 | ||
2828 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
2829 | /* If this needs to be changed because of future relaxing, | |
2830 | it will be handled here like other internal IND12W | |
2831 | relocs. */ | |
2832 | bfd_put_32 (abfd, | |
2833 | 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf), | |
2834 | contents + irel->r_offset); | |
2835 | else | |
2836 | /* We can't fully resolve this yet, because the external | |
2837 | symbol value may be changed by future relaxing. | |
2838 | We let the final link phase handle it. */ | |
2839 | bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11), | |
2840 | contents + irel->r_offset); | |
2841 | ||
b34976b6 | 2842 | hi_irelfn->r_info = |
86aba9db NC |
2843 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); |
2844 | lo_irelfn->r_info = | |
2845 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
2846 | irelcall->r_info = | |
2847 | ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE); | |
2848 | ||
2849 | if (! v850_elf_relax_delete_bytes (abfd, sec, | |
2850 | irel->r_offset + 4, toaddr, 12)) | |
2851 | goto error_return; | |
2852 | ||
2853 | align_pad_size += 12; | |
2854 | } | |
2855 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP) | |
2856 | { | |
2857 | /* Check code for -mlong-jumps output. */ | |
eea6121a | 2858 | if (laddr + 10 <= (bfd_vma) sec->size) |
86aba9db NC |
2859 | { |
2860 | insn[0] = bfd_get_16 (abfd, contents + laddr); | |
2861 | insn[1] = bfd_get_16 (abfd, contents + laddr + 4); | |
2862 | insn[2] = bfd_get_16 (abfd, contents + laddr + 8); | |
2863 | ||
2864 | if ((insn[0] & MOVHI_MASK) != MOVHI | |
2865 | || MOVHI_R1 (insn[0]) != 0) | |
2866 | no_match = 0; | |
2867 | ||
2868 | if (no_match < 0 | |
2869 | && ((insn[1] & MOVEA_MASK) != MOVEA | |
2870 | || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) | |
2871 | no_match = 1; | |
2872 | ||
2873 | if (no_match < 0 | |
2874 | && ((insn[2] & JMP_R_MASK) != JMP_R | |
2875 | || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2]))) | |
2876 | no_match = 4; | |
2877 | } | |
2878 | else | |
2879 | { | |
2880 | ((*_bfd_error_handler) | |
2881 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns", | |
2882 | bfd_get_filename (abfd), (unsigned long) irel->r_offset)); | |
2883 | ||
2884 | continue; | |
2885 | } | |
2886 | ||
2887 | if (no_match >= 0) | |
2888 | { | |
2889 | ((*_bfd_error_handler) | |
2890 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x", | |
2891 | bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); | |
2892 | ||
2893 | continue; | |
2894 | } | |
2895 | ||
2896 | /* Get the reloc for the address from which the register is | |
2897 | being loaded. This reloc will tell us which function is | |
2898 | actually being called. */ | |
2899 | for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) | |
2900 | if (hi_irelfn->r_offset == laddr + 2 | |
b34976b6 | 2901 | && ELF32_R_TYPE (hi_irelfn->r_info) == (int) R_V850_HI16_S) |
86aba9db NC |
2902 | break; |
2903 | ||
2904 | for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) | |
2905 | if (lo_irelfn->r_offset == laddr + 6 | |
2906 | && ELF32_R_TYPE (lo_irelfn->r_info) == (int) R_V850_LO16) | |
2907 | break; | |
2908 | ||
2909 | if ( hi_irelfn == irelend | |
2910 | || lo_irelfn == irelend) | |
2911 | { | |
2912 | ((*_bfd_error_handler) | |
2913 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc", | |
2914 | bfd_get_filename (abfd), (unsigned long) irel->r_offset )); | |
2915 | ||
2916 | continue; | |
2917 | } | |
b34976b6 | 2918 | |
86aba9db NC |
2919 | /* Get the value of the symbol referred to by the reloc. */ |
2920 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
2921 | { | |
5cec6941 NC |
2922 | Elf_Internal_Sym * isym; |
2923 | asection * sym_sec; | |
86aba9db NC |
2924 | |
2925 | /* A local symbol. */ | |
5cec6941 NC |
2926 | isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); |
2927 | ||
2928 | if (isym->st_shndx == SHN_UNDEF) | |
86aba9db | 2929 | sym_sec = bfd_und_section_ptr; |
5cec6941 | 2930 | else if (isym->st_shndx == SHN_ABS) |
86aba9db | 2931 | sym_sec = bfd_abs_section_ptr; |
5cec6941 | 2932 | else if (isym->st_shndx == SHN_COMMON) |
86aba9db NC |
2933 | sym_sec = bfd_com_section_ptr; |
2934 | else | |
5cec6941 NC |
2935 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
2936 | symval = (isym->st_value | |
86aba9db NC |
2937 | + sym_sec->output_section->vma |
2938 | + sym_sec->output_offset); | |
2939 | #ifdef DEBUG_RELAX | |
2940 | { | |
2941 | char * name = bfd_elf_string_from_elf_section | |
5cec6941 | 2942 | (abfd, symtab_hdr->sh_link, isym->st_name); |
86aba9db NC |
2943 | |
2944 | fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", | |
5cec6941 NC |
2945 | sym_sec->name, name, isym->st_name, |
2946 | sym_sec->output_section->vma, | |
2947 | sym_sec->output_offset, | |
2948 | isym->st_value, irel->r_addend); | |
86aba9db NC |
2949 | } |
2950 | #endif | |
2951 | } | |
2952 | else | |
2953 | { | |
2954 | unsigned long indx; | |
2955 | struct elf_link_hash_entry * h; | |
2956 | ||
2957 | /* An external symbol. */ | |
2958 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2959 | h = elf_sym_hashes (abfd)[indx]; | |
2960 | BFD_ASSERT (h != NULL); | |
2961 | ||
2962 | if ( h->root.type != bfd_link_hash_defined | |
2963 | && h->root.type != bfd_link_hash_defweak) | |
2964 | /* This appears to be a reference to an undefined | |
2965 | symbol. Just ignore it--it will be caught by the | |
2966 | regular reloc processing. */ | |
2967 | continue; | |
2968 | ||
2969 | symval = (h->root.u.def.value | |
2970 | + h->root.u.def.section->output_section->vma | |
2971 | + h->root.u.def.section->output_offset); | |
2972 | #ifdef DEBUG_RELAX | |
2973 | fprintf (stderr, | |
2974 | "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", | |
2975 | sec->name, h->root.root.string, h->root.u.def.value, | |
2976 | sec->output_section->vma, sec->output_offset, irel->r_addend); | |
2977 | #endif | |
2978 | } | |
2979 | ||
2980 | addend = irel->r_addend; | |
2981 | ||
2982 | foff = (symval + addend | |
2983 | - (irel->r_offset | |
2984 | + sec->output_section->vma | |
2985 | + sec->output_offset | |
2986 | + 4)); | |
2987 | #ifdef DEBUG_RELAX | |
2988 | fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", | |
2989 | irel->r_offset, | |
2990 | (irel->r_offset | |
2991 | + sec->output_section->vma | |
2992 | + sec->output_offset), | |
2993 | symval, addend, foff); | |
2994 | #endif | |
2995 | if (foff < -0x100000 || foff >= 0x100000) | |
2996 | /* After all that work, we can't shorten this function call. */ | |
2997 | continue; | |
2998 | ||
2999 | /* For simplicity of coding, we are going to modify the section | |
3000 | contents, the section relocs, and the BFD symbol table. We | |
3001 | must tell the rest of the code not to free up this | |
3002 | information. It would be possible to instead create a table | |
3003 | of changes which have to be made, as is done in coff-mips.c; | |
3004 | that would be more work, but would require less memory when | |
3005 | the linker is run. */ | |
3006 | elf_section_data (sec)->relocs = internal_relocs; | |
86aba9db | 3007 | elf_section_data (sec)->this_hdr.contents = contents; |
5cec6941 | 3008 | symtab_hdr->contents = (bfd_byte *) isymbuf; |
86aba9db NC |
3009 | |
3010 | if (foff < -0x100 || foff >= 0x100) | |
3011 | { | |
3012 | /* Replace the long jump with a jr. */ | |
3013 | ||
3014 | irel->r_info = | |
b34976b6 AM |
3015 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL); |
3016 | ||
86aba9db NC |
3017 | irel->r_addend = addend; |
3018 | addend = 0; | |
3019 | ||
3020 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3021 | /* If this needs to be changed because of future relaxing, | |
3022 | it will be handled here like other internal IND12W | |
3023 | relocs. */ | |
3024 | bfd_put_32 (abfd, | |
3025 | 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf), | |
3026 | contents + irel->r_offset); | |
3027 | else | |
3028 | /* We can't fully resolve this yet, because the external | |
3029 | symbol value may be changed by future relaxing. | |
3030 | We let the final link phase handle it. */ | |
3031 | bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset); | |
3032 | ||
3033 | hi_irelfn->r_info = | |
3034 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); | |
3035 | lo_irelfn->r_info = | |
3036 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
3037 | if (!v850_elf_relax_delete_bytes (abfd, sec, | |
3038 | irel->r_offset + 4, toaddr, 6)) | |
3039 | goto error_return; | |
3040 | ||
3041 | align_pad_size += 6; | |
3042 | } | |
3043 | else | |
3044 | { | |
3045 | /* Replace the long jump with a br. */ | |
3046 | ||
3047 | irel->r_info = | |
3048 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL); | |
3049 | ||
3050 | irel->r_addend = addend; | |
3051 | addend = 0; | |
3052 | ||
3053 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3054 | /* If this needs to be changed because of future relaxing, | |
3055 | it will be handled here like other internal IND12W | |
3056 | relocs. */ | |
3057 | bfd_put_16 (abfd, | |
3058 | 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070), | |
3059 | contents + irel->r_offset); | |
3060 | else | |
3061 | /* We can't fully resolve this yet, because the external | |
3062 | symbol value may be changed by future relaxing. | |
3063 | We let the final link phase handle it. */ | |
3064 | bfd_put_16 (abfd, 0x0585, contents + irel->r_offset); | |
3065 | ||
3066 | hi_irelfn->r_info = | |
3067 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); | |
3068 | lo_irelfn->r_info = | |
3069 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
3070 | if (!v850_elf_relax_delete_bytes (abfd, sec, | |
3071 | irel->r_offset + 2, toaddr, 8)) | |
3072 | goto error_return; | |
3073 | ||
3074 | align_pad_size += 8; | |
3075 | } | |
3076 | } | |
3077 | } | |
3078 | ||
3079 | irelalign = NULL; | |
3080 | for (irel = internal_relocs; irel < irelend; irel++) | |
3081 | { | |
3082 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN | |
3083 | && irel->r_offset == toaddr) | |
3084 | { | |
3085 | irel->r_offset -= align_pad_size; | |
3086 | ||
3087 | if (irelalign == NULL || irelalign->r_addend > irel->r_addend) | |
3088 | irelalign = irel; | |
3089 | } | |
3090 | } | |
3091 | ||
3092 | addr = toaddr; | |
3093 | } | |
3094 | ||
3095 | if (!irelalign) | |
3096 | { | |
3097 | #ifdef DEBUG_RELAX | |
3098 | fprintf (stderr, "relax pad %d shorten %d -> %d\n", | |
3099 | align_pad_size, | |
eea6121a AM |
3100 | sec->size, |
3101 | sec->size - align_pad_size); | |
86aba9db | 3102 | #endif |
eea6121a | 3103 | sec->size -= align_pad_size; |
86aba9db NC |
3104 | } |
3105 | ||
5cec6941 NC |
3106 | finish: |
3107 | if (internal_relocs != NULL | |
3108 | && elf_section_data (sec)->relocs != internal_relocs) | |
3109 | free (internal_relocs); | |
86aba9db | 3110 | |
5cec6941 NC |
3111 | if (contents != NULL |
3112 | && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents) | |
3113 | free (contents); | |
86aba9db | 3114 | |
5cec6941 NC |
3115 | if (isymbuf != NULL |
3116 | && symtab_hdr->contents != (bfd_byte *) isymbuf) | |
3117 | free (isymbuf); | |
86aba9db | 3118 | |
5cec6941 | 3119 | return result; |
86aba9db | 3120 | |
5cec6941 | 3121 | error_return: |
b34976b6 | 3122 | result = FALSE; |
5cec6941 | 3123 | goto finish; |
86aba9db | 3124 | } |
2f89ff8d L |
3125 | |
3126 | static struct bfd_elf_special_section const v850_elf_special_sections[]= | |
3127 | { | |
7dcb9820 AM |
3128 | { ".sdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE |
3129 | + SHF_V850_GPREL) }, | |
3130 | { ".rosdata", 8, -2, SHT_PROGBITS, (SHF_ALLOC | |
3131 | + SHF_V850_GPREL) }, | |
3132 | { ".sbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3133 | + SHF_V850_GPREL) }, | |
3134 | { ".scommon", 8, -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE | |
3135 | + SHF_V850_GPREL) }, | |
3136 | { ".tdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3137 | + SHF_V850_EPREL) }, | |
3138 | { ".tbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3139 | + SHF_V850_EPREL) }, | |
3140 | { ".tcommon", 8, -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE | |
3141 | + SHF_V850_R0REL) }, | |
3142 | { ".zdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3143 | + SHF_V850_R0REL) }, | |
3144 | { ".rozdata", 8, -2, SHT_PROGBITS, (SHF_ALLOC | |
3145 | + SHF_V850_R0REL) }, | |
3146 | { ".zbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3147 | + SHF_V850_R0REL) }, | |
3148 | { ".zcommon", 8, -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE | |
3149 | + SHF_V850_R0REL) }, | |
3150 | { ".call_table_data", 16, 0, SHT_PROGBITS, (SHF_ALLOC | |
3151 | + SHF_WRITE) }, | |
3152 | { ".call_table_text", 16, 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3153 | + SHF_EXECINSTR) }, | |
3154 | { NULL, 0, 0, 0, 0 } | |
2f89ff8d | 3155 | }; |
252b5132 RH |
3156 | \f |
3157 | #define TARGET_LITTLE_SYM bfd_elf32_v850_vec | |
3158 | #define TARGET_LITTLE_NAME "elf32-v850" | |
3159 | #define ELF_ARCH bfd_arch_v850 | |
aa4f99bb AO |
3160 | #define ELF_MACHINE_CODE EM_V850 |
3161 | #define ELF_MACHINE_ALT1 EM_CYGNUS_V850 | |
252b5132 | 3162 | #define ELF_MAXPAGESIZE 0x1000 |
435b1e90 | 3163 | |
252b5132 RH |
3164 | #define elf_info_to_howto v850_elf_info_to_howto_rela |
3165 | #define elf_info_to_howto_rel v850_elf_info_to_howto_rel | |
3166 | ||
3167 | #define elf_backend_check_relocs v850_elf_check_relocs | |
3168 | #define elf_backend_relocate_section v850_elf_relocate_section | |
3169 | #define elf_backend_object_p v850_elf_object_p | |
3170 | #define elf_backend_final_write_processing v850_elf_final_write_processing | |
3171 | #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section | |
3172 | #define elf_backend_symbol_processing v850_elf_symbol_processing | |
3173 | #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook | |
3174 | #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook | |
3175 | #define elf_backend_section_from_shdr v850_elf_section_from_shdr | |
3176 | #define elf_backend_fake_sections v850_elf_fake_sections | |
3177 | #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook | |
3178 | #define elf_backend_gc_sweep_hook v850_elf_gc_sweep_hook | |
2f89ff8d | 3179 | #define elf_backend_special_sections v850_elf_special_sections |
252b5132 RH |
3180 | |
3181 | #define elf_backend_can_gc_sections 1 | |
f0fe0e16 | 3182 | #define elf_backend_rela_normal 1 |
252b5132 | 3183 | |
252b5132 RH |
3184 | #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name |
3185 | #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup | |
252b5132 RH |
3186 | #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data |
3187 | #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags | |
3188 | #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data | |
86aba9db | 3189 | #define bfd_elf32_bfd_relax_section v850_elf_relax_section |
252b5132 RH |
3190 | |
3191 | #define elf_symbol_leading_char '_' | |
3192 | ||
3193 | #include "elf32-target.h" |