Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* V850-specific support for 32-bit ELF |
9553c638 | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
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_gc_sweep_hook |
e12dd2ea NC |
82 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
83 | const Elf_Internal_Rela *)); | |
84 | static asection * v850_elf_gc_mark_hook | |
1e2f5b6e | 85 | PARAMS ((asection *, struct bfd_link_info *, |
e12dd2ea NC |
86 | Elf_Internal_Rela *, struct elf_link_hash_entry *, |
87 | Elf_Internal_Sym *)); | |
86aba9db NC |
88 | static bfd_reloc_status_type v850_elf_ignore_reloc |
89 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
b34976b6 | 90 | static bfd_boolean v850_elf_relax_delete_bytes |
86aba9db | 91 | PARAMS ((bfd *, asection *, bfd_vma, bfd_vma, int)); |
b34976b6 AM |
92 | static bfd_boolean v850_elf_relax_section |
93 | PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *)); | |
e12dd2ea NC |
94 | |
95 | /* Note: It is REQUIRED that the 'type' value of each entry | |
96 | in this array match the index of the entry in the array. */ | |
252b5132 RH |
97 | static reloc_howto_type v850_elf_howto_table[] = |
98 | { | |
99 | /* This reloc does nothing. */ | |
100 | HOWTO (R_V850_NONE, /* type */ | |
101 | 0, /* rightshift */ | |
102 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
103 | 32, /* bitsize */ | |
b34976b6 | 104 | FALSE, /* pc_relative */ |
252b5132 RH |
105 | 0, /* bitpos */ |
106 | complain_overflow_bitfield, /* complain_on_overflow */ | |
107 | bfd_elf_generic_reloc, /* special_function */ | |
108 | "R_V850_NONE", /* name */ | |
b34976b6 | 109 | FALSE, /* partial_inplace */ |
252b5132 RH |
110 | 0, /* src_mask */ |
111 | 0, /* dst_mask */ | |
b34976b6 | 112 | FALSE), /* pcrel_offset */ |
252b5132 | 113 | |
435b1e90 | 114 | /* A PC relative 9 bit branch. */ |
252b5132 RH |
115 | HOWTO (R_V850_9_PCREL, /* type */ |
116 | 2, /* rightshift */ | |
117 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
118 | 26, /* bitsize */ | |
b34976b6 | 119 | TRUE, /* pc_relative */ |
252b5132 RH |
120 | 0, /* bitpos */ |
121 | complain_overflow_bitfield, /* complain_on_overflow */ | |
122 | v850_elf_reloc, /* special_function */ | |
123 | "R_V850_9_PCREL", /* name */ | |
b34976b6 | 124 | FALSE, /* partial_inplace */ |
252b5132 RH |
125 | 0x00ffffff, /* src_mask */ |
126 | 0x00ffffff, /* dst_mask */ | |
b34976b6 | 127 | TRUE), /* pcrel_offset */ |
252b5132 | 128 | |
435b1e90 | 129 | /* A PC relative 22 bit branch. */ |
252b5132 RH |
130 | HOWTO (R_V850_22_PCREL, /* type */ |
131 | 2, /* rightshift */ | |
132 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
133 | 22, /* bitsize */ | |
b34976b6 | 134 | TRUE, /* pc_relative */ |
252b5132 RH |
135 | 7, /* bitpos */ |
136 | complain_overflow_signed, /* complain_on_overflow */ | |
137 | v850_elf_reloc, /* special_function */ | |
138 | "R_V850_22_PCREL", /* name */ | |
b34976b6 | 139 | FALSE, /* partial_inplace */ |
252b5132 RH |
140 | 0x07ffff80, /* src_mask */ |
141 | 0x07ffff80, /* dst_mask */ | |
b34976b6 | 142 | TRUE), /* pcrel_offset */ |
252b5132 RH |
143 | |
144 | /* High 16 bits of symbol value. */ | |
145 | HOWTO (R_V850_HI16_S, /* type */ | |
146 | 0, /* rightshift */ | |
147 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
148 | 16, /* bitsize */ | |
b34976b6 | 149 | FALSE, /* pc_relative */ |
252b5132 RH |
150 | 0, /* bitpos */ |
151 | complain_overflow_dont, /* complain_on_overflow */ | |
152 | v850_elf_reloc, /* special_function */ | |
153 | "R_V850_HI16_S", /* name */ | |
b34976b6 | 154 | FALSE, /* partial_inplace */ |
252b5132 RH |
155 | 0xffff, /* src_mask */ |
156 | 0xffff, /* dst_mask */ | |
b34976b6 | 157 | FALSE), /* pcrel_offset */ |
252b5132 RH |
158 | |
159 | /* High 16 bits of symbol value. */ | |
160 | HOWTO (R_V850_HI16, /* type */ | |
161 | 0, /* rightshift */ | |
162 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
163 | 16, /* bitsize */ | |
b34976b6 | 164 | FALSE, /* pc_relative */ |
252b5132 RH |
165 | 0, /* bitpos */ |
166 | complain_overflow_dont, /* complain_on_overflow */ | |
167 | v850_elf_reloc, /* special_function */ | |
168 | "R_V850_HI16", /* name */ | |
b34976b6 | 169 | FALSE, /* partial_inplace */ |
252b5132 RH |
170 | 0xffff, /* src_mask */ |
171 | 0xffff, /* dst_mask */ | |
b34976b6 | 172 | FALSE), /* pcrel_offset */ |
252b5132 RH |
173 | |
174 | /* Low 16 bits of symbol value. */ | |
175 | HOWTO (R_V850_LO16, /* type */ | |
176 | 0, /* rightshift */ | |
177 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
178 | 16, /* bitsize */ | |
b34976b6 | 179 | FALSE, /* pc_relative */ |
252b5132 RH |
180 | 0, /* bitpos */ |
181 | complain_overflow_dont, /* complain_on_overflow */ | |
182 | v850_elf_reloc, /* special_function */ | |
183 | "R_V850_LO16", /* name */ | |
b34976b6 | 184 | FALSE, /* partial_inplace */ |
252b5132 RH |
185 | 0xffff, /* src_mask */ |
186 | 0xffff, /* dst_mask */ | |
b34976b6 | 187 | FALSE), /* pcrel_offset */ |
252b5132 RH |
188 | |
189 | /* Simple 32bit reloc. */ | |
e30ddb24 | 190 | HOWTO (R_V850_ABS32, /* type */ |
252b5132 RH |
191 | 0, /* rightshift */ |
192 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
193 | 32, /* bitsize */ | |
b34976b6 | 194 | FALSE, /* pc_relative */ |
252b5132 RH |
195 | 0, /* bitpos */ |
196 | complain_overflow_dont, /* complain_on_overflow */ | |
197 | v850_elf_reloc, /* special_function */ | |
e30ddb24 | 198 | "R_V850_ABS32", /* name */ |
b34976b6 | 199 | FALSE, /* partial_inplace */ |
252b5132 RH |
200 | 0xffffffff, /* src_mask */ |
201 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 202 | FALSE), /* pcrel_offset */ |
252b5132 RH |
203 | |
204 | /* Simple 16bit reloc. */ | |
205 | HOWTO (R_V850_16, /* type */ | |
206 | 0, /* rightshift */ | |
207 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
208 | 16, /* bitsize */ | |
b34976b6 | 209 | FALSE, /* pc_relative */ |
252b5132 RH |
210 | 0, /* bitpos */ |
211 | complain_overflow_dont, /* complain_on_overflow */ | |
212 | bfd_elf_generic_reloc, /* special_function */ | |
213 | "R_V850_16", /* name */ | |
b34976b6 | 214 | FALSE, /* partial_inplace */ |
252b5132 RH |
215 | 0xffff, /* src_mask */ |
216 | 0xffff, /* dst_mask */ | |
b34976b6 | 217 | FALSE), /* pcrel_offset */ |
252b5132 RH |
218 | |
219 | /* Simple 8bit reloc. */ | |
220 | HOWTO (R_V850_8, /* type */ | |
221 | 0, /* rightshift */ | |
222 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
223 | 8, /* bitsize */ | |
b34976b6 | 224 | FALSE, /* pc_relative */ |
252b5132 RH |
225 | 0, /* bitpos */ |
226 | complain_overflow_dont, /* complain_on_overflow */ | |
227 | bfd_elf_generic_reloc, /* special_function */ | |
228 | "R_V850_8", /* name */ | |
b34976b6 | 229 | FALSE, /* partial_inplace */ |
252b5132 RH |
230 | 0xff, /* src_mask */ |
231 | 0xff, /* dst_mask */ | |
b34976b6 | 232 | FALSE), /* pcrel_offset */ |
252b5132 RH |
233 | |
234 | /* 16 bit offset from the short data area pointer. */ | |
235 | HOWTO (R_V850_SDA_16_16_OFFSET, /* type */ | |
236 | 0, /* rightshift */ | |
237 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
238 | 16, /* bitsize */ | |
b34976b6 | 239 | FALSE, /* pc_relative */ |
252b5132 RH |
240 | 0, /* bitpos */ |
241 | complain_overflow_dont, /* complain_on_overflow */ | |
242 | v850_elf_reloc, /* special_function */ | |
243 | "R_V850_SDA_16_16_OFFSET", /* name */ | |
b34976b6 | 244 | FALSE, /* partial_inplace */ |
252b5132 RH |
245 | 0xffff, /* src_mask */ |
246 | 0xffff, /* dst_mask */ | |
b34976b6 | 247 | FALSE), /* pcrel_offset */ |
252b5132 RH |
248 | |
249 | /* 15 bit offset from the short data area pointer. */ | |
250 | HOWTO (R_V850_SDA_15_16_OFFSET, /* type */ | |
251 | 1, /* rightshift */ | |
252 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
253 | 16, /* bitsize */ | |
b34976b6 | 254 | FALSE, /* pc_relative */ |
252b5132 RH |
255 | 1, /* bitpos */ |
256 | complain_overflow_dont, /* complain_on_overflow */ | |
257 | v850_elf_reloc, /* special_function */ | |
258 | "R_V850_SDA_15_16_OFFSET", /* name */ | |
b34976b6 | 259 | FALSE, /* partial_inplace */ |
252b5132 RH |
260 | 0xfffe, /* src_mask */ |
261 | 0xfffe, /* dst_mask */ | |
b34976b6 | 262 | FALSE), /* pcrel_offset */ |
252b5132 RH |
263 | |
264 | /* 16 bit offset from the zero data area pointer. */ | |
265 | HOWTO (R_V850_ZDA_16_16_OFFSET, /* type */ | |
266 | 0, /* rightshift */ | |
267 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
268 | 16, /* bitsize */ | |
b34976b6 | 269 | FALSE, /* pc_relative */ |
252b5132 RH |
270 | 0, /* bitpos */ |
271 | complain_overflow_dont, /* complain_on_overflow */ | |
272 | v850_elf_reloc, /* special_function */ | |
273 | "R_V850_ZDA_16_16_OFFSET", /* name */ | |
b34976b6 | 274 | FALSE, /* partial_inplace */ |
252b5132 RH |
275 | 0xffff, /* src_mask */ |
276 | 0xffff, /* dst_mask */ | |
b34976b6 | 277 | FALSE), /* pcrel_offset */ |
252b5132 RH |
278 | |
279 | /* 15 bit offset from the zero data area pointer. */ | |
280 | HOWTO (R_V850_ZDA_15_16_OFFSET, /* type */ | |
281 | 1, /* rightshift */ | |
282 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
283 | 16, /* bitsize */ | |
b34976b6 | 284 | FALSE, /* pc_relative */ |
252b5132 RH |
285 | 1, /* bitpos */ |
286 | complain_overflow_dont, /* complain_on_overflow */ | |
287 | v850_elf_reloc, /* special_function */ | |
288 | "R_V850_ZDA_15_16_OFFSET", /* name */ | |
b34976b6 | 289 | FALSE, /* partial_inplace */ |
252b5132 RH |
290 | 0xfffe, /* src_mask */ |
291 | 0xfffe, /* dst_mask */ | |
b34976b6 | 292 | FALSE), /* pcrel_offset */ |
252b5132 RH |
293 | |
294 | /* 6 bit offset from the tiny data area pointer. */ | |
295 | HOWTO (R_V850_TDA_6_8_OFFSET, /* type */ | |
296 | 2, /* rightshift */ | |
297 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
298 | 8, /* bitsize */ | |
b34976b6 | 299 | FALSE, /* pc_relative */ |
252b5132 RH |
300 | 1, /* bitpos */ |
301 | complain_overflow_dont, /* complain_on_overflow */ | |
302 | v850_elf_reloc, /* special_function */ | |
303 | "R_V850_TDA_6_8_OFFSET", /* name */ | |
b34976b6 | 304 | FALSE, /* partial_inplace */ |
252b5132 RH |
305 | 0x7e, /* src_mask */ |
306 | 0x7e, /* dst_mask */ | |
b34976b6 | 307 | FALSE), /* pcrel_offset */ |
252b5132 RH |
308 | |
309 | /* 8 bit offset from the tiny data area pointer. */ | |
310 | HOWTO (R_V850_TDA_7_8_OFFSET, /* type */ | |
311 | 1, /* rightshift */ | |
312 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
313 | 8, /* bitsize */ | |
b34976b6 | 314 | FALSE, /* pc_relative */ |
252b5132 RH |
315 | 0, /* bitpos */ |
316 | complain_overflow_dont, /* complain_on_overflow */ | |
317 | v850_elf_reloc, /* special_function */ | |
318 | "R_V850_TDA_7_8_OFFSET", /* name */ | |
b34976b6 | 319 | FALSE, /* partial_inplace */ |
252b5132 RH |
320 | 0x7f, /* src_mask */ |
321 | 0x7f, /* dst_mask */ | |
b34976b6 | 322 | FALSE), /* pcrel_offset */ |
435b1e90 | 323 | |
252b5132 RH |
324 | /* 7 bit offset from the tiny data area pointer. */ |
325 | HOWTO (R_V850_TDA_7_7_OFFSET, /* type */ | |
326 | 0, /* rightshift */ | |
327 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
328 | 7, /* bitsize */ | |
b34976b6 | 329 | FALSE, /* pc_relative */ |
252b5132 RH |
330 | 0, /* bitpos */ |
331 | complain_overflow_dont, /* complain_on_overflow */ | |
332 | v850_elf_reloc, /* special_function */ | |
333 | "R_V850_TDA_7_7_OFFSET", /* name */ | |
b34976b6 | 334 | FALSE, /* partial_inplace */ |
252b5132 RH |
335 | 0x7f, /* src_mask */ |
336 | 0x7f, /* dst_mask */ | |
b34976b6 | 337 | FALSE), /* pcrel_offset */ |
252b5132 RH |
338 | |
339 | /* 16 bit offset from the tiny data area pointer! */ | |
340 | HOWTO (R_V850_TDA_16_16_OFFSET, /* type */ | |
341 | 0, /* rightshift */ | |
342 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
343 | 16, /* bitsize */ | |
b34976b6 | 344 | FALSE, /* pc_relative */ |
252b5132 RH |
345 | 0, /* bitpos */ |
346 | complain_overflow_dont, /* complain_on_overflow */ | |
347 | v850_elf_reloc, /* special_function */ | |
348 | "R_V850_TDA_16_16_OFFSET", /* name */ | |
b34976b6 | 349 | FALSE, /* partial_inplace */ |
252b5132 RH |
350 | 0xffff, /* src_mask */ |
351 | 0xfff, /* dst_mask */ | |
b34976b6 | 352 | FALSE), /* pcrel_offset */ |
252b5132 RH |
353 | |
354 | /* 5 bit offset from the tiny data area pointer. */ | |
355 | HOWTO (R_V850_TDA_4_5_OFFSET, /* type */ | |
356 | 1, /* rightshift */ | |
357 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
358 | 5, /* bitsize */ | |
b34976b6 | 359 | FALSE, /* pc_relative */ |
252b5132 RH |
360 | 0, /* bitpos */ |
361 | complain_overflow_dont, /* complain_on_overflow */ | |
362 | v850_elf_reloc, /* special_function */ | |
363 | "R_V850_TDA_4_5_OFFSET", /* name */ | |
b34976b6 | 364 | FALSE, /* partial_inplace */ |
252b5132 RH |
365 | 0x0f, /* src_mask */ |
366 | 0x0f, /* dst_mask */ | |
b34976b6 | 367 | FALSE), /* pcrel_offset */ |
252b5132 RH |
368 | |
369 | /* 4 bit offset from the tiny data area pointer. */ | |
370 | HOWTO (R_V850_TDA_4_4_OFFSET, /* type */ | |
371 | 0, /* rightshift */ | |
372 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
373 | 4, /* bitsize */ | |
b34976b6 | 374 | FALSE, /* pc_relative */ |
252b5132 RH |
375 | 0, /* bitpos */ |
376 | complain_overflow_dont, /* complain_on_overflow */ | |
377 | v850_elf_reloc, /* special_function */ | |
378 | "R_V850_TDA_4_4_OFFSET", /* name */ | |
b34976b6 | 379 | FALSE, /* partial_inplace */ |
252b5132 RH |
380 | 0x0f, /* src_mask */ |
381 | 0x0f, /* dst_mask */ | |
b34976b6 | 382 | FALSE), /* pcrel_offset */ |
252b5132 RH |
383 | |
384 | /* 16 bit offset from the short data area pointer. */ | |
385 | HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* type */ | |
386 | 0, /* rightshift */ | |
387 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
388 | 16, /* bitsize */ | |
b34976b6 | 389 | FALSE, /* pc_relative */ |
252b5132 RH |
390 | 0, /* bitpos */ |
391 | complain_overflow_dont, /* complain_on_overflow */ | |
392 | v850_elf_reloc, /* special_function */ | |
393 | "R_V850_SDA_16_16_SPLIT_OFFSET",/* name */ | |
b34976b6 | 394 | FALSE, /* partial_inplace */ |
252b5132 RH |
395 | 0xfffe0020, /* src_mask */ |
396 | 0xfffe0020, /* dst_mask */ | |
b34976b6 | 397 | FALSE), /* pcrel_offset */ |
252b5132 RH |
398 | |
399 | /* 16 bit offset from the zero data area pointer. */ | |
400 | HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* type */ | |
401 | 0, /* rightshift */ | |
402 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
403 | 16, /* bitsize */ | |
b34976b6 | 404 | FALSE, /* pc_relative */ |
252b5132 RH |
405 | 0, /* bitpos */ |
406 | complain_overflow_dont, /* complain_on_overflow */ | |
407 | v850_elf_reloc, /* special_function */ | |
408 | "R_V850_ZDA_16_16_SPLIT_OFFSET",/* name */ | |
b34976b6 | 409 | FALSE, /* partial_inplace */ |
252b5132 RH |
410 | 0xfffe0020, /* src_mask */ |
411 | 0xfffe0020, /* dst_mask */ | |
b34976b6 | 412 | FALSE), /* pcrel_offset */ |
252b5132 RH |
413 | |
414 | /* 6 bit offset from the call table base pointer. */ | |
415 | HOWTO (R_V850_CALLT_6_7_OFFSET, /* type */ | |
416 | 0, /* rightshift */ | |
417 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
418 | 7, /* bitsize */ | |
b34976b6 | 419 | FALSE, /* pc_relative */ |
252b5132 RH |
420 | 0, /* bitpos */ |
421 | complain_overflow_dont, /* complain_on_overflow */ | |
422 | v850_elf_reloc, /* special_function */ | |
423 | "R_V850_CALLT_6_7_OFFSET", /* name */ | |
b34976b6 | 424 | FALSE, /* partial_inplace */ |
252b5132 RH |
425 | 0x3f, /* src_mask */ |
426 | 0x3f, /* dst_mask */ | |
b34976b6 | 427 | FALSE), /* pcrel_offset */ |
252b5132 RH |
428 | |
429 | /* 16 bit offset from the call table base pointer. */ | |
430 | HOWTO (R_V850_CALLT_16_16_OFFSET, /* type */ | |
431 | 0, /* rightshift */ | |
432 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
433 | 16, /* bitsize */ | |
b34976b6 | 434 | FALSE, /* pc_relative */ |
252b5132 RH |
435 | 0, /* bitpos */ |
436 | complain_overflow_dont, /* complain_on_overflow */ | |
437 | v850_elf_reloc, /* special_function */ | |
438 | "R_V850_CALLT_16_16_OFFSET", /* name */ | |
b34976b6 | 439 | FALSE, /* partial_inplace */ |
252b5132 RH |
440 | 0xffff, /* src_mask */ |
441 | 0xffff, /* dst_mask */ | |
b34976b6 | 442 | FALSE), /* pcrel_offset */ |
252b5132 RH |
443 | |
444 | /* GNU extension to record C++ vtable hierarchy */ | |
445 | HOWTO (R_V850_GNU_VTINHERIT, /* type */ | |
446 | 0, /* rightshift */ | |
447 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
448 | 0, /* bitsize */ | |
b34976b6 | 449 | FALSE, /* pc_relative */ |
252b5132 RH |
450 | 0, /* bitpos */ |
451 | complain_overflow_dont, /* complain_on_overflow */ | |
452 | NULL, /* special_function */ | |
453 | "R_V850_GNU_VTINHERIT", /* name */ | |
b34976b6 | 454 | FALSE, /* partial_inplace */ |
252b5132 RH |
455 | 0, /* src_mask */ |
456 | 0, /* dst_mask */ | |
b34976b6 | 457 | FALSE), /* pcrel_offset */ |
252b5132 RH |
458 | |
459 | /* GNU extension to record C++ vtable member usage */ | |
460 | HOWTO (R_V850_GNU_VTENTRY, /* type */ | |
461 | 0, /* rightshift */ | |
462 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
463 | 0, /* bitsize */ | |
b34976b6 | 464 | FALSE, /* pc_relative */ |
252b5132 RH |
465 | 0, /* bitpos */ |
466 | complain_overflow_dont, /* complain_on_overflow */ | |
467 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
468 | "R_V850_GNU_VTENTRY", /* name */ | |
b34976b6 | 469 | FALSE, /* partial_inplace */ |
252b5132 RH |
470 | 0, /* src_mask */ |
471 | 0, /* dst_mask */ | |
b34976b6 | 472 | FALSE), /* pcrel_offset */ |
435b1e90 | 473 | |
86aba9db NC |
474 | /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall |
475 | pseudo-op when it finds a function call which can be relaxed. */ | |
476 | HOWTO (R_V850_LONGCALL, /* type */ | |
477 | 0, /* rightshift */ | |
478 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
479 | 32, /* bitsize */ | |
b34976b6 | 480 | TRUE, /* pc_relative */ |
86aba9db NC |
481 | 0, /* bitpos */ |
482 | complain_overflow_signed, /* complain_on_overflow */ | |
483 | v850_elf_ignore_reloc, /* special_function */ | |
484 | "R_V850_LONGCALL", /* name */ | |
b34976b6 | 485 | FALSE, /* partial_inplace */ |
86aba9db NC |
486 | 0, /* src_mask */ |
487 | 0, /* dst_mask */ | |
b34976b6 | 488 | TRUE), /* pcrel_offset */ |
86aba9db NC |
489 | |
490 | /* Indicates a .longjump pseudo-op. The compiler will generate a | |
491 | .longjump pseudo-op when it finds a branch which can be relaxed. */ | |
492 | HOWTO (R_V850_LONGJUMP, /* type */ | |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 32, /* bitsize */ | |
b34976b6 | 496 | TRUE, /* pc_relative */ |
86aba9db NC |
497 | 0, /* bitpos */ |
498 | complain_overflow_signed, /* complain_on_overflow */ | |
499 | v850_elf_ignore_reloc, /* special_function */ | |
500 | "R_V850_LONGJUMP", /* name */ | |
b34976b6 | 501 | FALSE, /* partial_inplace */ |
86aba9db NC |
502 | 0, /* src_mask */ |
503 | 0, /* dst_mask */ | |
b34976b6 | 504 | TRUE), /* pcrel_offset */ |
86aba9db NC |
505 | |
506 | HOWTO (R_V850_ALIGN, /* type */ | |
507 | 0, /* rightshift */ | |
508 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
509 | 0, /* bitsize */ | |
b34976b6 | 510 | FALSE, /* pc_relative */ |
86aba9db NC |
511 | 0, /* bitpos */ |
512 | complain_overflow_unsigned, /* complain_on_overflow */ | |
513 | v850_elf_ignore_reloc, /* special_function */ | |
514 | "R_V850_ALIGN", /* name */ | |
b34976b6 | 515 | FALSE, /* partial_inplace */ |
86aba9db NC |
516 | 0, /* src_mask */ |
517 | 0, /* dst_mask */ | |
b34976b6 | 518 | TRUE), /* pcrel_offset */ |
e30ddb24 NC |
519 | |
520 | /* Simple pc-relative 32bit reloc. */ | |
521 | HOWTO (R_V850_REL32, /* type */ | |
522 | 0, /* rightshift */ | |
523 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
524 | 32, /* bitsize */ | |
525 | TRUE, /* pc_relative */ | |
526 | 0, /* bitpos */ | |
527 | complain_overflow_dont, /* complain_on_overflow */ | |
528 | v850_elf_reloc, /* special_function */ | |
529 | "R_V850_REL32", /* name */ | |
530 | FALSE, /* partial_inplace */ | |
531 | 0xffffffff, /* src_mask */ | |
532 | 0xffffffff, /* dst_mask */ | |
533 | FALSE), /* pcrel_offset */ | |
1e50d24d RS |
534 | |
535 | /* An ld.bu version of R_V850_LO16. */ | |
536 | HOWTO (R_V850_LO16_SPLIT_OFFSET, /* type */ | |
537 | 0, /* rightshift */ | |
538 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
539 | 16, /* bitsize */ | |
540 | FALSE, /* pc_relative */ | |
541 | 0, /* bitpos */ | |
542 | complain_overflow_dont, /* complain_on_overflow */ | |
543 | v850_elf_reloc, /* special_function */ | |
544 | "R_V850_LO16_SPLIT_OFFSET", /* name */ | |
545 | FALSE, /* partial_inplace */ | |
546 | 0xfffe0020, /* src_mask */ | |
547 | 0xfffe0020, /* dst_mask */ | |
548 | FALSE), /* pcrel_offset */ | |
252b5132 RH |
549 | }; |
550 | ||
551 | /* Map BFD reloc types to V850 ELF reloc types. */ | |
552 | ||
553 | struct v850_elf_reloc_map | |
554 | { | |
555 | /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an | |
556 | unsigned char. */ | |
557 | bfd_reloc_code_real_type bfd_reloc_val; | |
917583ad | 558 | unsigned int elf_reloc_val; |
252b5132 RH |
559 | }; |
560 | ||
561 | static const struct v850_elf_reloc_map v850_elf_reloc_map[] = | |
562 | { | |
86aba9db NC |
563 | { BFD_RELOC_NONE, R_V850_NONE }, |
564 | { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL }, | |
565 | { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL }, | |
566 | { BFD_RELOC_HI16_S, R_V850_HI16_S }, | |
567 | { BFD_RELOC_HI16, R_V850_HI16 }, | |
568 | { BFD_RELOC_LO16, R_V850_LO16 }, | |
e30ddb24 NC |
569 | { BFD_RELOC_32, R_V850_ABS32 }, |
570 | { BFD_RELOC_32_PCREL, R_V850_REL32 }, | |
86aba9db NC |
571 | { BFD_RELOC_16, R_V850_16 }, |
572 | { BFD_RELOC_8, R_V850_8 }, | |
573 | { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET }, | |
574 | { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET }, | |
575 | { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET }, | |
576 | { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET }, | |
577 | { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET }, | |
578 | { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET }, | |
579 | { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET }, | |
580 | { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET }, | |
252b5132 RH |
581 | { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET }, |
582 | { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET }, | |
1e50d24d | 583 | { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET }, |
252b5132 RH |
584 | { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET }, |
585 | { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET }, | |
586 | { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET }, | |
587 | { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET }, | |
86aba9db NC |
588 | { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT }, |
589 | { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY }, | |
590 | { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL }, | |
591 | { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP }, | |
592 | { BFD_RELOC_V850_ALIGN, R_V850_ALIGN }, | |
252b5132 RH |
593 | |
594 | }; | |
252b5132 | 595 | \f |
e12dd2ea NC |
596 | /* Map a bfd relocation into the appropriate howto structure. */ |
597 | ||
252b5132 RH |
598 | static reloc_howto_type * |
599 | v850_elf_reloc_type_lookup (abfd, code) | |
b34976b6 AM |
600 | bfd *abfd ATTRIBUTE_UNUSED; |
601 | bfd_reloc_code_real_type code; | |
252b5132 RH |
602 | { |
603 | unsigned int i; | |
604 | ||
e12dd2ea NC |
605 | for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;) |
606 | if (v850_elf_reloc_map[i].bfd_reloc_val == code) | |
607 | { | |
917583ad | 608 | unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val; |
dc810e39 | 609 | |
fbad9a25 | 610 | BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val); |
435b1e90 | 611 | |
fbad9a25 | 612 | return v850_elf_howto_table + elf_reloc_val; |
e12dd2ea | 613 | } |
252b5132 RH |
614 | |
615 | return NULL; | |
616 | } | |
252b5132 RH |
617 | \f |
618 | /* Set the howto pointer for an V850 ELF reloc. */ | |
e12dd2ea | 619 | |
252b5132 RH |
620 | static void |
621 | v850_elf_info_to_howto_rel (abfd, cache_ptr, dst) | |
b34976b6 AM |
622 | bfd *abfd ATTRIBUTE_UNUSED; |
623 | arelent *cache_ptr; | |
624 | Elf_Internal_Rela *dst; | |
252b5132 RH |
625 | { |
626 | unsigned int r_type; | |
627 | ||
628 | r_type = ELF32_R_TYPE (dst->r_info); | |
629 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
630 | cache_ptr->howto = &v850_elf_howto_table[r_type]; | |
631 | } | |
632 | ||
435b1e90 | 633 | /* Set the howto pointer for a V850 ELF reloc (type RELA). */ |
252b5132 RH |
634 | static void |
635 | v850_elf_info_to_howto_rela (abfd, cache_ptr, dst) | |
b34976b6 AM |
636 | bfd *abfd ATTRIBUTE_UNUSED; |
637 | arelent * cache_ptr; | |
638 | Elf_Internal_Rela *dst; | |
252b5132 RH |
639 | { |
640 | unsigned int r_type; | |
641 | ||
642 | r_type = ELF32_R_TYPE (dst->r_info); | |
643 | BFD_ASSERT (r_type < (unsigned int) R_V850_max); | |
644 | cache_ptr->howto = &v850_elf_howto_table[r_type]; | |
645 | } | |
252b5132 RH |
646 | \f |
647 | /* Look through the relocs for a section during the first phase, and | |
648 | allocate space in the global offset table or procedure linkage | |
649 | table. */ | |
650 | ||
b34976b6 | 651 | static bfd_boolean |
252b5132 | 652 | v850_elf_check_relocs (abfd, info, sec, relocs) |
b34976b6 AM |
653 | bfd *abfd; |
654 | struct bfd_link_info *info; | |
655 | asection *sec; | |
656 | const Elf_Internal_Rela *relocs; | |
252b5132 | 657 | { |
b34976b6 | 658 | bfd_boolean ret = TRUE; |
252b5132 RH |
659 | bfd *dynobj; |
660 | Elf_Internal_Shdr *symtab_hdr; | |
661 | struct elf_link_hash_entry **sym_hashes; | |
662 | const Elf_Internal_Rela *rel; | |
663 | const Elf_Internal_Rela *rel_end; | |
664 | asection *sreloc; | |
665 | enum v850_reloc_type r_type; | |
666 | int other = 0; | |
667 | const char *common = (const char *)0; | |
668 | ||
1049f94e | 669 | if (info->relocatable) |
b34976b6 | 670 | return TRUE; |
252b5132 RH |
671 | |
672 | #ifdef DEBUG | |
d003868e AM |
673 | _bfd_error_handler ("v850_elf_check_relocs called for section %A in %B", |
674 | sec, abfd); | |
252b5132 RH |
675 | #endif |
676 | ||
677 | dynobj = elf_hash_table (info)->dynobj; | |
678 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
679 | sym_hashes = elf_sym_hashes (abfd); | |
680 | sreloc = NULL; | |
681 | ||
682 | rel_end = relocs + sec->reloc_count; | |
683 | for (rel = relocs; rel < rel_end; rel++) | |
684 | { | |
685 | unsigned long r_symndx; | |
686 | struct elf_link_hash_entry *h; | |
687 | ||
688 | r_symndx = ELF32_R_SYM (rel->r_info); | |
689 | if (r_symndx < symtab_hdr->sh_info) | |
690 | h = NULL; | |
691 | else | |
692 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
693 | ||
694 | r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info); | |
695 | switch (r_type) | |
696 | { | |
697 | default: | |
698 | case R_V850_NONE: | |
699 | case R_V850_9_PCREL: | |
700 | case R_V850_22_PCREL: | |
701 | case R_V850_HI16_S: | |
702 | case R_V850_HI16: | |
703 | case R_V850_LO16: | |
1e50d24d | 704 | case R_V850_LO16_SPLIT_OFFSET: |
e30ddb24 NC |
705 | case R_V850_ABS32: |
706 | case R_V850_REL32: | |
252b5132 RH |
707 | case R_V850_16: |
708 | case R_V850_8: | |
709 | case R_V850_CALLT_6_7_OFFSET: | |
710 | case R_V850_CALLT_16_16_OFFSET: | |
711 | break; | |
712 | ||
713 | /* This relocation describes the C++ object vtable hierarchy. | |
714 | Reconstruct it for later use during GC. */ | |
715 | case R_V850_GNU_VTINHERIT: | |
c152c796 | 716 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 717 | return FALSE; |
252b5132 RH |
718 | break; |
719 | ||
e12dd2ea NC |
720 | /* This relocation describes which C++ vtable entries |
721 | are actually used. Record for later use during GC. */ | |
252b5132 | 722 | case R_V850_GNU_VTENTRY: |
c152c796 | 723 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
b34976b6 | 724 | return FALSE; |
252b5132 RH |
725 | break; |
726 | ||
727 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
728 | case R_V850_SDA_16_16_OFFSET: | |
729 | case R_V850_SDA_15_16_OFFSET: | |
730 | other = V850_OTHER_SDA; | |
731 | common = ".scommon"; | |
732 | goto small_data_common; | |
435b1e90 | 733 | |
252b5132 RH |
734 | case R_V850_ZDA_16_16_SPLIT_OFFSET: |
735 | case R_V850_ZDA_16_16_OFFSET: | |
736 | case R_V850_ZDA_15_16_OFFSET: | |
737 | other = V850_OTHER_ZDA; | |
738 | common = ".zcommon"; | |
739 | goto small_data_common; | |
435b1e90 | 740 | |
252b5132 RH |
741 | case R_V850_TDA_4_5_OFFSET: |
742 | case R_V850_TDA_4_4_OFFSET: | |
743 | case R_V850_TDA_6_8_OFFSET: | |
744 | case R_V850_TDA_7_8_OFFSET: | |
745 | case R_V850_TDA_7_7_OFFSET: | |
746 | case R_V850_TDA_16_16_OFFSET: | |
747 | other = V850_OTHER_TDA; | |
748 | common = ".tcommon"; | |
749 | /* fall through */ | |
750 | ||
751 | #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA) | |
752 | ||
753 | small_data_common: | |
754 | if (h) | |
755 | { | |
e12dd2ea NC |
756 | /* Flag which type of relocation was used. */ |
757 | h->other |= other; | |
252b5132 RH |
758 | if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK) |
759 | && (h->other & V850_OTHER_ERROR) == 0) | |
760 | { | |
761 | const char * msg; | |
762 | static char buff[200]; /* XXX */ | |
763 | ||
764 | switch (h->other & V850_OTHER_MASK) | |
765 | { | |
766 | default: | |
767 | msg = _("Variable `%s' cannot occupy in multiple small data regions"); | |
768 | break; | |
769 | case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA: | |
770 | msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions"); | |
771 | break; | |
772 | case V850_OTHER_SDA | V850_OTHER_ZDA: | |
773 | msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously"); | |
774 | break; | |
775 | case V850_OTHER_SDA | V850_OTHER_TDA: | |
776 | msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously"); | |
777 | break; | |
778 | case V850_OTHER_ZDA | V850_OTHER_TDA: | |
779 | msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously"); | |
780 | break; | |
781 | } | |
782 | ||
783 | sprintf (buff, msg, h->root.root.string); | |
784 | info->callbacks->warning (info, buff, h->root.root.string, | |
dc810e39 AM |
785 | abfd, h->root.u.def.section, |
786 | (bfd_vma) 0); | |
252b5132 RH |
787 | |
788 | bfd_set_error (bfd_error_bad_value); | |
789 | h->other |= V850_OTHER_ERROR; | |
b34976b6 | 790 | ret = FALSE; |
252b5132 RH |
791 | } |
792 | } | |
793 | ||
794 | if (h && h->root.type == bfd_link_hash_common | |
795 | && h->root.u.c.p | |
796 | && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON")) | |
797 | { | |
e12dd2ea NC |
798 | asection * section; |
799 | ||
800 | section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common); | |
252b5132 RH |
801 | section->flags |= SEC_IS_COMMON; |
802 | } | |
803 | ||
804 | #ifdef DEBUG | |
805 | fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n", | |
806 | v850_elf_howto_table[ (int)r_type ].name, | |
807 | (h && h->root.root.string) ? h->root.root.string : "<unknown>", | |
808 | (h->root.type == bfd_link_hash_common) ? ", symbol is common" : ""); | |
809 | #endif | |
810 | break; | |
811 | } | |
812 | } | |
813 | ||
814 | return ret; | |
815 | } | |
816 | ||
e12dd2ea NC |
817 | /* In the old version, when an entry was checked out from the table, |
818 | it was deleted. This produced an error if the entry was needed | |
819 | more than once, as the second attempted retry failed. | |
820 | ||
821 | In the current version, the entry is not deleted, instead we set | |
b34976b6 | 822 | the field 'found' to TRUE. If a second lookup matches the same |
e12dd2ea NC |
823 | entry, then we know that the hi16s reloc has already been updated |
824 | and does not need to be updated a second time. | |
825 | ||
826 | TODO - TOFIX: If it is possible that we need to restore 2 different | |
827 | addresses from the same table entry, where the first generates an | |
828 | overflow, whilst the second do not, then this code will fail. */ | |
252b5132 RH |
829 | |
830 | typedef struct hi16s_location | |
831 | { | |
b34976b6 AM |
832 | bfd_vma addend; |
833 | bfd_byte *address; | |
252b5132 | 834 | unsigned long counter; |
b34976b6 AM |
835 | bfd_boolean found; |
836 | struct hi16s_location *next; | |
252b5132 RH |
837 | } |
838 | hi16s_location; | |
839 | ||
b34976b6 AM |
840 | static hi16s_location *previous_hi16s; |
841 | static hi16s_location *free_hi16s; | |
842 | static unsigned long hi16s_counter; | |
252b5132 RH |
843 | |
844 | static void | |
845 | remember_hi16s_reloc (abfd, addend, address) | |
b34976b6 AM |
846 | bfd *abfd; |
847 | bfd_vma addend; | |
848 | bfd_byte *address; | |
252b5132 RH |
849 | { |
850 | hi16s_location * entry = NULL; | |
dc810e39 | 851 | bfd_size_type amt = sizeof (* free_hi16s); |
435b1e90 | 852 | |
252b5132 RH |
853 | /* Find a free structure. */ |
854 | if (free_hi16s == NULL) | |
dc810e39 | 855 | free_hi16s = (hi16s_location *) bfd_zalloc (abfd, amt); |
252b5132 RH |
856 | |
857 | entry = free_hi16s; | |
858 | free_hi16s = free_hi16s->next; | |
435b1e90 | 859 | |
252b5132 RH |
860 | entry->addend = addend; |
861 | entry->address = address; | |
862 | entry->counter = hi16s_counter ++; | |
b34976b6 | 863 | entry->found = FALSE; |
252b5132 RH |
864 | entry->next = previous_hi16s; |
865 | previous_hi16s = entry; | |
435b1e90 | 866 | |
252b5132 RH |
867 | /* Cope with wrap around of our counter. */ |
868 | if (hi16s_counter == 0) | |
869 | { | |
870 | /* XXX - Assume that all counter entries differ only in their low 16 bits. */ | |
871 | for (entry = previous_hi16s; entry != NULL; entry = entry->next) | |
872 | entry->counter &= 0xffff; | |
873 | ||
874 | hi16s_counter = 0x10000; | |
875 | } | |
435b1e90 | 876 | |
252b5132 RH |
877 | return; |
878 | } | |
879 | ||
880 | static bfd_byte * | |
881 | find_remembered_hi16s_reloc (addend, already_found) | |
b34976b6 AM |
882 | bfd_vma addend; |
883 | bfd_boolean *already_found; | |
252b5132 | 884 | { |
b34976b6 AM |
885 | hi16s_location *match = NULL; |
886 | hi16s_location *entry; | |
887 | hi16s_location *previous = NULL; | |
888 | hi16s_location *prev; | |
889 | bfd_byte *addr; | |
435b1e90 | 890 | |
252b5132 RH |
891 | /* Search the table. Record the most recent entry that matches. */ |
892 | for (entry = previous_hi16s; entry; entry = entry->next) | |
893 | { | |
894 | if (entry->addend == addend | |
895 | && (match == NULL || match->counter < entry->counter)) | |
896 | { | |
897 | previous = prev; | |
898 | match = entry; | |
899 | } | |
435b1e90 | 900 | |
252b5132 RH |
901 | prev = entry; |
902 | } | |
903 | ||
904 | if (match == NULL) | |
905 | return NULL; | |
906 | ||
907 | /* Extract the address. */ | |
908 | addr = match->address; | |
909 | ||
4cc11e76 | 910 | /* Remember if this entry has already been used before. */ |
252b5132 RH |
911 | if (already_found) |
912 | * already_found = match->found; | |
913 | ||
914 | /* Note that this entry has now been used. */ | |
b34976b6 | 915 | match->found = TRUE; |
435b1e90 | 916 | |
252b5132 | 917 | return addr; |
435b1e90 | 918 | } |
252b5132 | 919 | |
1e50d24d RS |
920 | /* Calculate the final operand value for a R_V850_LO16 or |
921 | R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and | |
922 | ADDEND is the sum of the relocation symbol and offset. Store the | |
923 | operand value in *INSN and return true on success. | |
924 | ||
925 | The assembler has already done some of this: If the value stored in | |
926 | the instruction has its 15th bit set, (counting from zero) then the | |
927 | assembler will have added 1 to the value stored in the associated | |
928 | HI16S reloc. So for example, these relocations: | |
929 | ||
930 | movhi hi( fred ), r0, r1 | |
931 | movea lo( fred ), r1, r1 | |
932 | ||
933 | will store 0 in the value fields for the MOVHI and MOVEA instructions | |
934 | and addend will be the address of fred, but for these instructions: | |
935 | ||
936 | movhi hi( fred + 0x123456), r0, r1 | |
937 | movea lo( fred + 0x123456), r1, r1 | |
938 | ||
939 | the value stored in the MOVHI instruction will be 0x12 and the value | |
940 | stored in the MOVEA instruction will be 0x3456. If however the | |
941 | instructions were: | |
942 | ||
943 | movhi hi( fred + 0x10ffff), r0, r1 | |
944 | movea lo( fred + 0x10ffff), r1, r1 | |
945 | ||
946 | then the value stored in the MOVHI instruction would be 0x11 (not | |
947 | 0x10) and the value stored in the MOVEA instruction would be 0xffff. | |
948 | Thus (assuming for the moment that the addend is 0), at run time the | |
949 | MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction | |
950 | adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if | |
951 | the instructions were: | |
952 | ||
953 | movhi hi( fred - 1), r0, r1 | |
954 | movea lo( fred - 1), r1, r1 | |
955 | ||
956 | then 0 is stored in the MOVHI instruction and -1 is stored in the | |
957 | MOVEA instruction. | |
958 | ||
959 | Overflow can occur if the addition of the value stored in the | |
960 | instruction plus the addend sets the 15th bit when before it was clear. | |
961 | This is because the 15th bit will be sign extended into the high part, | |
962 | thus reducing its value by one, but since the 15th bit was originally | |
963 | clear, the assembler will not have added 1 to the previous HI16S reloc | |
964 | to compensate for this effect. For example: | |
965 | ||
966 | movhi hi( fred + 0x123456), r0, r1 | |
967 | movea lo( fred + 0x123456), r1, r1 | |
968 | ||
969 | The value stored in HI16S reloc is 0x12, the value stored in the LO16 | |
970 | reloc is 0x3456. If we assume that the address of fred is 0x00007000 | |
971 | then the relocations become: | |
972 | ||
973 | HI16S: 0x0012 + (0x00007000 >> 16) = 0x12 | |
974 | LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456 | |
975 | ||
976 | but when the instructions are executed, the MOVEA instruction's value | |
977 | is signed extended, so the sum becomes: | |
978 | ||
979 | 0x00120000 | |
980 | + 0xffffa456 | |
981 | ------------ | |
982 | 0x0011a456 but 'fred + 0x123456' = 0x0012a456 | |
983 | ||
984 | Note that if the 15th bit was set in the value stored in the LO16 | |
985 | reloc, then we do not have to do anything: | |
986 | ||
987 | movhi hi( fred + 0x10ffff), r0, r1 | |
988 | movea lo( fred + 0x10ffff), r1, r1 | |
989 | ||
990 | HI16S: 0x0011 + (0x00007000 >> 16) = 0x11 | |
991 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff | |
992 | ||
993 | 0x00110000 | |
994 | + 0x00006fff | |
995 | ------------ | |
996 | 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff | |
997 | ||
998 | Overflow can also occur if the computation carries into the 16th bit | |
999 | and it also results in the 15th bit having the same value as the 15th | |
1000 | bit of the original value. What happens is that the HI16S reloc | |
1001 | will have already examined the 15th bit of the original value and | |
1002 | added 1 to the high part if the bit is set. This compensates for the | |
1003 | sign extension of 15th bit of the result of the computation. But now | |
1004 | there is a carry into the 16th bit, and this has not been allowed for. | |
1005 | ||
1006 | So, for example if fred is at address 0xf000: | |
1007 | ||
1008 | movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] | |
1009 | movea lo( fred + 0xffff), r1, r1 | |
1010 | ||
1011 | HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001 | |
1012 | LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost) | |
1013 | ||
1014 | 0x00010000 | |
1015 | + 0xffffefff | |
1016 | ------------ | |
1017 | 0x0000efff but 'fred + 0xffff' = 0x0001efff | |
1018 | ||
1019 | Similarly, if the 15th bit remains clear, but overflow occurs into | |
1020 | the 16th bit then (assuming the address of fred is 0xf000): | |
1021 | ||
1022 | movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] | |
1023 | movea lo( fred + 0x7000), r1, r1 | |
1024 | ||
1025 | HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000 | |
1026 | LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost) | |
1027 | ||
1028 | 0x00000000 | |
1029 | + 0x00006fff | |
1030 | ------------ | |
1031 | 0x00006fff but 'fred + 0x7000' = 0x00016fff | |
1032 | ||
1033 | Note - there is no need to change anything if a carry occurs, and the | |
1034 | 15th bit changes its value from being set to being clear, as the HI16S | |
1035 | reloc will have already added in 1 to the high part for us: | |
1036 | ||
1037 | movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set] | |
1038 | movea lo( fred + 0xffff), r1, r1 | |
1039 | ||
1040 | HI16S: 0x0001 + (0x00007000 >> 16) | |
1041 | LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost) | |
1042 | ||
1043 | 0x00010000 | |
1044 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
1045 | ------------ | |
1046 | 0x00016fff which is right (assuming that fred is at 0x7000) | |
1047 | ||
1048 | but if the 15th bit goes from being clear to being set, then we must | |
1049 | once again handle overflow: | |
1050 | ||
1051 | movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear] | |
1052 | movea lo( fred + 0x7000), r1, r1 | |
1053 | ||
1054 | HI16S: 0x0000 + (0x0000ffff >> 16) | |
1055 | LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16) | |
1056 | ||
1057 | 0x00000000 | |
1058 | + 0x00006fff (bit 15 not set, so the top half is zero) | |
1059 | ------------ | |
1060 | 0x00006fff which is wrong (assuming that fred is at 0xffff). */ | |
1061 | ||
1062 | static bfd_boolean | |
1063 | v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn, | |
1064 | unsigned long addend) | |
1065 | { | |
1066 | #define BIT15_SET(x) ((x) & 0x8000) | |
1067 | #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff) | |
1068 | if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend)) | |
1069 | || (OVERFLOWS (addend, *insn) | |
1070 | && ((! BIT15_SET (*insn)) || (BIT15_SET (addend))))) | |
1071 | { | |
1072 | bfd_boolean already_updated; | |
1073 | bfd_byte *hi16s_address = find_remembered_hi16s_reloc | |
1074 | (addend, & already_updated); | |
1075 | ||
1076 | /* Amend the matching HI16_S relocation. */ | |
1077 | if (hi16s_address != NULL) | |
1078 | { | |
1079 | if (! already_updated) | |
1080 | { | |
1081 | unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address); | |
1082 | hi_insn += 1; | |
1083 | bfd_put_16 (abfd, hi_insn, hi16s_address); | |
1084 | } | |
1085 | } | |
1086 | else | |
1087 | { | |
1088 | fprintf (stderr, _("FAILED to find previous HI16 reloc\n")); | |
1089 | return FALSE; | |
1090 | } | |
1091 | } | |
1092 | #undef OVERFLOWS | |
1093 | #undef BIT15_SET | |
1094 | ||
1095 | /* Do not complain if value has top bit set, as this has been | |
1096 | anticipated. */ | |
1097 | *insn = (*insn + addend) & 0xffff; | |
1098 | return TRUE; | |
1099 | } | |
1100 | ||
252b5132 | 1101 | /* FIXME: The code here probably ought to be removed and the code in reloc.c |
4cc11e76 | 1102 | allowed to do its stuff instead. At least for most of the relocs, anyway. */ |
e12dd2ea | 1103 | |
252b5132 RH |
1104 | static bfd_reloc_status_type |
1105 | v850_elf_perform_relocation (abfd, r_type, addend, address) | |
dc810e39 AM |
1106 | bfd *abfd; |
1107 | unsigned int r_type; | |
1108 | bfd_vma addend; | |
1109 | bfd_byte *address; | |
252b5132 RH |
1110 | { |
1111 | unsigned long insn; | |
1e50d24d | 1112 | unsigned long result; |
252b5132 | 1113 | bfd_signed_vma saddend = (bfd_signed_vma) addend; |
435b1e90 | 1114 | |
252b5132 RH |
1115 | switch (r_type) |
1116 | { | |
1117 | default: | |
1118 | /* fprintf (stderr, "reloc type %d not SUPPORTED\n", r_type ); */ | |
1119 | return bfd_reloc_notsupported; | |
435b1e90 | 1120 | |
e30ddb24 NC |
1121 | case R_V850_REL32: |
1122 | case R_V850_ABS32: | |
252b5132 RH |
1123 | bfd_put_32 (abfd, addend, address); |
1124 | return bfd_reloc_ok; | |
435b1e90 | 1125 | |
252b5132 RH |
1126 | case R_V850_22_PCREL: |
1127 | if (saddend > 0x1fffff || saddend < -0x200000) | |
1128 | return bfd_reloc_overflow; | |
435b1e90 | 1129 | |
252b5132 RH |
1130 | if ((addend % 2) != 0) |
1131 | return bfd_reloc_dangerous; | |
435b1e90 | 1132 | |
252b5132 RH |
1133 | insn = bfd_get_32 (abfd, address); |
1134 | insn &= ~0xfffe003f; | |
1135 | insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16)); | |
dc810e39 | 1136 | bfd_put_32 (abfd, (bfd_vma) insn, address); |
252b5132 | 1137 | return bfd_reloc_ok; |
435b1e90 | 1138 | |
252b5132 RH |
1139 | case R_V850_9_PCREL: |
1140 | if (saddend > 0xff || saddend < -0x100) | |
1141 | return bfd_reloc_overflow; | |
435b1e90 | 1142 | |
252b5132 RH |
1143 | if ((addend % 2) != 0) |
1144 | return bfd_reloc_dangerous; | |
435b1e90 | 1145 | |
252b5132 RH |
1146 | insn = bfd_get_16 (abfd, address); |
1147 | insn &= ~ 0xf870; | |
1148 | insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3); | |
1149 | break; | |
435b1e90 | 1150 | |
252b5132 RH |
1151 | case R_V850_HI16: |
1152 | addend += (bfd_get_16 (abfd, address) << 16); | |
1153 | addend = (addend >> 16); | |
1154 | insn = addend; | |
1155 | break; | |
435b1e90 | 1156 | |
252b5132 RH |
1157 | case R_V850_HI16_S: |
1158 | /* Remember where this relocation took place. */ | |
1159 | remember_hi16s_reloc (abfd, addend, address); | |
1160 | ||
1161 | addend += (bfd_get_16 (abfd, address) << 16); | |
1162 | addend = (addend >> 16) + ((addend & 0x8000) != 0); | |
435b1e90 KH |
1163 | |
1164 | /* This relocation cannot overflow. */ | |
252b5132 RH |
1165 | if (addend > 0x7fff) |
1166 | addend = 0; | |
435b1e90 | 1167 | |
252b5132 RH |
1168 | insn = addend; |
1169 | break; | |
435b1e90 | 1170 | |
252b5132 | 1171 | case R_V850_LO16: |
1e50d24d RS |
1172 | insn = bfd_get_16 (abfd, address); |
1173 | if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend)) | |
1174 | return bfd_reloc_overflow; | |
1175 | break; | |
252b5132 RH |
1176 | |
1177 | case R_V850_8: | |
1178 | addend += (char) bfd_get_8 (abfd, address); | |
1179 | ||
1180 | saddend = (bfd_signed_vma) addend; | |
435b1e90 | 1181 | |
252b5132 RH |
1182 | if (saddend > 0x7f || saddend < -0x80) |
1183 | return bfd_reloc_overflow; | |
1184 | ||
1185 | bfd_put_8 (abfd, addend, address); | |
1186 | return bfd_reloc_ok; | |
1187 | ||
1188 | case R_V850_CALLT_16_16_OFFSET: | |
1189 | addend += bfd_get_16 (abfd, address); | |
435b1e90 | 1190 | |
252b5132 | 1191 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1192 | |
252b5132 RH |
1193 | if (saddend > 0xffff || saddend < 0) |
1194 | return bfd_reloc_overflow; | |
1195 | ||
1196 | insn = addend; | |
1197 | break; | |
435b1e90 | 1198 | |
252b5132 RH |
1199 | case R_V850_16: |
1200 | ||
435b1e90 | 1201 | /* drop through */ |
252b5132 RH |
1202 | case R_V850_SDA_16_16_OFFSET: |
1203 | case R_V850_ZDA_16_16_OFFSET: | |
1204 | case R_V850_TDA_16_16_OFFSET: | |
1205 | addend += bfd_get_16 (abfd, address); | |
435b1e90 | 1206 | |
252b5132 | 1207 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1208 | |
252b5132 RH |
1209 | if (saddend > 0x7fff || saddend < -0x8000) |
1210 | return bfd_reloc_overflow; | |
1211 | ||
1212 | insn = addend; | |
1213 | break; | |
435b1e90 | 1214 | |
252b5132 RH |
1215 | case R_V850_SDA_15_16_OFFSET: |
1216 | case R_V850_ZDA_15_16_OFFSET: | |
1217 | insn = bfd_get_16 (abfd, address); | |
1218 | addend += (insn & 0xfffe); | |
435b1e90 | 1219 | |
252b5132 | 1220 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1221 | |
252b5132 RH |
1222 | if (saddend > 0x7ffe || saddend < -0x8000) |
1223 | return bfd_reloc_overflow; | |
435b1e90 | 1224 | |
252b5132 RH |
1225 | if (addend & 1) |
1226 | return bfd_reloc_dangerous; | |
435b1e90 | 1227 | |
dc810e39 | 1228 | insn = (addend &~ (bfd_vma) 1) | (insn & 1); |
252b5132 | 1229 | break; |
435b1e90 | 1230 | |
252b5132 RH |
1231 | case R_V850_TDA_6_8_OFFSET: |
1232 | insn = bfd_get_16 (abfd, address); | |
1233 | addend += ((insn & 0x7e) << 1); | |
435b1e90 | 1234 | |
252b5132 | 1235 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1236 | |
252b5132 RH |
1237 | if (saddend > 0xfc || saddend < 0) |
1238 | return bfd_reloc_overflow; | |
435b1e90 | 1239 | |
252b5132 RH |
1240 | if (addend & 3) |
1241 | return bfd_reloc_dangerous; | |
435b1e90 | 1242 | |
252b5132 RH |
1243 | insn &= 0xff81; |
1244 | insn |= (addend >> 1); | |
1245 | break; | |
435b1e90 | 1246 | |
252b5132 RH |
1247 | case R_V850_TDA_7_8_OFFSET: |
1248 | insn = bfd_get_16 (abfd, address); | |
1249 | addend += ((insn & 0x7f) << 1); | |
435b1e90 | 1250 | |
252b5132 | 1251 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1252 | |
252b5132 RH |
1253 | if (saddend > 0xfe || saddend < 0) |
1254 | return bfd_reloc_overflow; | |
435b1e90 | 1255 | |
252b5132 RH |
1256 | if (addend & 1) |
1257 | return bfd_reloc_dangerous; | |
435b1e90 | 1258 | |
252b5132 RH |
1259 | insn &= 0xff80; |
1260 | insn |= (addend >> 1); | |
1261 | break; | |
435b1e90 | 1262 | |
252b5132 RH |
1263 | case R_V850_TDA_7_7_OFFSET: |
1264 | insn = bfd_get_16 (abfd, address); | |
1265 | addend += insn & 0x7f; | |
435b1e90 | 1266 | |
252b5132 | 1267 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1268 | |
252b5132 RH |
1269 | if (saddend > 0x7f || saddend < 0) |
1270 | return bfd_reloc_overflow; | |
435b1e90 | 1271 | |
252b5132 RH |
1272 | insn &= 0xff80; |
1273 | insn |= addend; | |
1274 | break; | |
435b1e90 | 1275 | |
252b5132 RH |
1276 | case R_V850_TDA_4_5_OFFSET: |
1277 | insn = bfd_get_16 (abfd, address); | |
1278 | addend += ((insn & 0xf) << 1); | |
435b1e90 | 1279 | |
252b5132 | 1280 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1281 | |
252b5132 RH |
1282 | if (saddend > 0x1e || saddend < 0) |
1283 | return bfd_reloc_overflow; | |
435b1e90 | 1284 | |
252b5132 RH |
1285 | if (addend & 1) |
1286 | return bfd_reloc_dangerous; | |
435b1e90 | 1287 | |
252b5132 RH |
1288 | insn &= 0xfff0; |
1289 | insn |= (addend >> 1); | |
1290 | break; | |
435b1e90 | 1291 | |
252b5132 RH |
1292 | case R_V850_TDA_4_4_OFFSET: |
1293 | insn = bfd_get_16 (abfd, address); | |
1294 | addend += insn & 0xf; | |
435b1e90 | 1295 | |
252b5132 | 1296 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1297 | |
252b5132 RH |
1298 | if (saddend > 0xf || saddend < 0) |
1299 | return bfd_reloc_overflow; | |
435b1e90 | 1300 | |
252b5132 RH |
1301 | insn &= 0xfff0; |
1302 | insn |= addend; | |
1303 | break; | |
435b1e90 | 1304 | |
1e50d24d RS |
1305 | case R_V850_LO16_SPLIT_OFFSET: |
1306 | insn = bfd_get_32 (abfd, address); | |
1307 | result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5); | |
1308 | if (! v850_elf_perform_lo16_relocation (abfd, &result, addend)) | |
1309 | return bfd_reloc_overflow; | |
1310 | insn = (((result << 16) & 0xfffe0000) | |
1311 | | ((result << 5) & 0x20) | |
1312 | | (insn & ~0xfffe0020)); | |
1313 | bfd_put_32 (abfd, insn, address); | |
1314 | return bfd_reloc_ok; | |
1315 | ||
252b5132 RH |
1316 | case R_V850_ZDA_16_16_SPLIT_OFFSET: |
1317 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
1318 | insn = bfd_get_32 (abfd, address); | |
1319 | addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5); | |
435b1e90 | 1320 | |
252b5132 | 1321 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1322 | |
252b5132 RH |
1323 | if (saddend > 0x7fff || saddend < -0x8000) |
1324 | return bfd_reloc_overflow; | |
435b1e90 | 1325 | |
252b5132 RH |
1326 | insn &= 0x0001ffdf; |
1327 | insn |= (addend & 1) << 5; | |
dc810e39 | 1328 | insn |= (addend &~ (bfd_vma) 1) << 16; |
435b1e90 | 1329 | |
dc810e39 | 1330 | bfd_put_32 (abfd, (bfd_vma) insn, address); |
252b5132 | 1331 | return bfd_reloc_ok; |
435b1e90 | 1332 | |
252b5132 RH |
1333 | case R_V850_CALLT_6_7_OFFSET: |
1334 | insn = bfd_get_16 (abfd, address); | |
1335 | addend += ((insn & 0x3f) << 1); | |
435b1e90 | 1336 | |
252b5132 | 1337 | saddend = (bfd_signed_vma) addend; |
435b1e90 | 1338 | |
252b5132 RH |
1339 | if (saddend > 0x7e || saddend < 0) |
1340 | return bfd_reloc_overflow; | |
435b1e90 | 1341 | |
252b5132 RH |
1342 | if (addend & 1) |
1343 | return bfd_reloc_dangerous; | |
435b1e90 | 1344 | |
252b5132 RH |
1345 | insn &= 0xff80; |
1346 | insn |= (addend >> 1); | |
1347 | break; | |
1348 | ||
1349 | case R_V850_GNU_VTINHERIT: | |
1350 | case R_V850_GNU_VTENTRY: | |
1351 | return bfd_reloc_ok; | |
1352 | ||
1353 | } | |
1354 | ||
dc810e39 | 1355 | bfd_put_16 (abfd, (bfd_vma) insn, address); |
252b5132 RH |
1356 | return bfd_reloc_ok; |
1357 | } | |
252b5132 RH |
1358 | \f |
1359 | /* Insert the addend into the instruction. */ | |
e12dd2ea | 1360 | |
252b5132 RH |
1361 | static bfd_reloc_status_type |
1362 | v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err) | |
b34976b6 AM |
1363 | bfd *abfd ATTRIBUTE_UNUSED; |
1364 | arelent *reloc; | |
1365 | asymbol *symbol; | |
1366 | PTR data ATTRIBUTE_UNUSED; | |
1367 | asection *isection; | |
1368 | bfd *obfd; | |
1369 | char **err ATTRIBUTE_UNUSED; | |
252b5132 RH |
1370 | { |
1371 | long relocation; | |
435b1e90 | 1372 | |
252b5132 RH |
1373 | /* If there is an output BFD, |
1374 | and the symbol is not a section name (which is only defined at final link time), | |
1375 | and either we are not putting the addend into the instruction | |
e12dd2ea | 1376 | or the addend is zero, so there is nothing to add into the instruction |
252b5132 RH |
1377 | then just fixup the address and return. */ |
1378 | if (obfd != (bfd *) NULL | |
1379 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
1380 | && (! reloc->howto->partial_inplace | |
1381 | || reloc->addend == 0)) | |
1382 | { | |
1383 | reloc->address += isection->output_offset; | |
1384 | return bfd_reloc_ok; | |
1385 | } | |
435b1e90 | 1386 | |
252b5132 RH |
1387 | /* Catch relocs involving undefined symbols. */ |
1388 | if (bfd_is_und_section (symbol->section) | |
1389 | && (symbol->flags & BSF_WEAK) == 0 | |
1390 | && obfd == NULL) | |
1391 | return bfd_reloc_undefined; | |
1392 | ||
1393 | /* We handle final linking of some relocs ourselves. */ | |
1394 | ||
1395 | /* Is the address of the relocation really within the section? */ | |
07515404 | 1396 | if (reloc->address > bfd_get_section_limit (abfd, isection)) |
252b5132 | 1397 | return bfd_reloc_outofrange; |
435b1e90 | 1398 | |
4cc11e76 | 1399 | /* Work out which section the relocation is targeted at and the |
252b5132 | 1400 | initial relocation command value. */ |
435b1e90 | 1401 | |
b34976b6 | 1402 | if (reloc->howto->pc_relative) |
86aba9db NC |
1403 | return bfd_reloc_ok; |
1404 | ||
252b5132 RH |
1405 | /* Get symbol value. (Common symbols are special.) */ |
1406 | if (bfd_is_com_section (symbol->section)) | |
1407 | relocation = 0; | |
1408 | else | |
1409 | relocation = symbol->value; | |
435b1e90 | 1410 | |
252b5132 RH |
1411 | /* Convert input-section-relative symbol value to absolute + addend. */ |
1412 | relocation += symbol->section->output_section->vma; | |
1413 | relocation += symbol->section->output_offset; | |
1414 | relocation += reloc->addend; | |
435b1e90 | 1415 | |
435b1e90 | 1416 | reloc->addend = relocation; |
252b5132 RH |
1417 | return bfd_reloc_ok; |
1418 | } | |
86aba9db NC |
1419 | |
1420 | /* This function is used for relocs which are only used | |
1421 | for relaxing, which the linker should otherwise ignore. */ | |
1422 | ||
1423 | static bfd_reloc_status_type | |
1424 | v850_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section, | |
1425 | output_bfd, error_message) | |
b34976b6 AM |
1426 | bfd *abfd ATTRIBUTE_UNUSED; |
1427 | arelent *reloc_entry; | |
1428 | asymbol *symbol ATTRIBUTE_UNUSED; | |
1429 | PTR data ATTRIBUTE_UNUSED; | |
1430 | asection *input_section; | |
1431 | bfd *output_bfd; | |
1432 | char **error_message ATTRIBUTE_UNUSED; | |
86aba9db NC |
1433 | { |
1434 | if (output_bfd != NULL) | |
1435 | reloc_entry->address += input_section->output_offset; | |
1436 | ||
1437 | return bfd_reloc_ok; | |
1438 | } | |
252b5132 | 1439 | \f |
b34976b6 | 1440 | static bfd_boolean |
252b5132 | 1441 | v850_elf_is_local_label_name (abfd, name) |
b34976b6 AM |
1442 | bfd *abfd ATTRIBUTE_UNUSED; |
1443 | const char *name; | |
252b5132 RH |
1444 | { |
1445 | return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.')) | |
1446 | || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')); | |
1447 | } | |
252b5132 | 1448 | \f |
5cec6941 NC |
1449 | /* We overload some of the bfd_reloc error codes for own purposes. */ |
1450 | #define bfd_reloc_gp_not_found bfd_reloc_other | |
1451 | #define bfd_reloc_ep_not_found bfd_reloc_continue | |
1452 | #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1) | |
1453 | ||
252b5132 | 1454 | /* Perform a relocation as part of a final link. */ |
e12dd2ea | 1455 | |
252b5132 RH |
1456 | static bfd_reloc_status_type |
1457 | v850_elf_final_link_relocate (howto, input_bfd, output_bfd, | |
86aba9db NC |
1458 | input_section, contents, offset, value, |
1459 | addend, info, sym_sec, is_local) | |
b34976b6 AM |
1460 | reloc_howto_type *howto; |
1461 | bfd *input_bfd; | |
1462 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
1463 | asection *input_section; | |
1464 | bfd_byte *contents; | |
1465 | bfd_vma offset; | |
1466 | bfd_vma value; | |
1467 | bfd_vma addend; | |
1468 | struct bfd_link_info *info; | |
1469 | asection *sym_sec; | |
1470 | int is_local ATTRIBUTE_UNUSED; | |
252b5132 | 1471 | { |
b34976b6 AM |
1472 | unsigned int r_type = howto->type; |
1473 | bfd_byte *hit_data = contents + offset; | |
252b5132 RH |
1474 | |
1475 | /* Adjust the value according to the relocation. */ | |
1476 | switch (r_type) | |
1477 | { | |
1478 | case R_V850_9_PCREL: | |
1479 | value -= (input_section->output_section->vma | |
1480 | + input_section->output_offset); | |
1481 | value -= offset; | |
1482 | break; | |
435b1e90 | 1483 | |
252b5132 RH |
1484 | case R_V850_22_PCREL: |
1485 | value -= (input_section->output_section->vma | |
1486 | + input_section->output_offset | |
1487 | + offset); | |
1488 | ||
232fb1a3 NC |
1489 | /* If the sign extension will corrupt the value then we have overflowed. */ |
1490 | if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000)) | |
1491 | return bfd_reloc_overflow; | |
435b1e90 | 1492 | |
e12dd2ea NC |
1493 | /* Only the bottom 24 bits of the PC are valid */ |
1494 | value = SEXT24 (value); | |
252b5132 | 1495 | break; |
435b1e90 | 1496 | |
e30ddb24 NC |
1497 | case R_V850_REL32: |
1498 | value -= (input_section->output_section->vma | |
1499 | + input_section->output_offset | |
1500 | + offset); | |
1501 | break; | |
1502 | ||
252b5132 RH |
1503 | case R_V850_HI16_S: |
1504 | case R_V850_HI16: | |
1505 | case R_V850_LO16: | |
1e50d24d | 1506 | case R_V850_LO16_SPLIT_OFFSET: |
252b5132 | 1507 | case R_V850_16: |
e30ddb24 | 1508 | case R_V850_ABS32: |
252b5132 RH |
1509 | case R_V850_8: |
1510 | break; | |
1511 | ||
435b1e90 | 1512 | case R_V850_ZDA_15_16_OFFSET: |
252b5132 RH |
1513 | case R_V850_ZDA_16_16_OFFSET: |
1514 | case R_V850_ZDA_16_16_SPLIT_OFFSET: | |
1515 | if (sym_sec == NULL) | |
1516 | return bfd_reloc_undefined; | |
435b1e90 | 1517 | |
252b5132 RH |
1518 | value -= sym_sec->output_section->vma; |
1519 | break; | |
1520 | ||
1521 | case R_V850_SDA_15_16_OFFSET: | |
1522 | case R_V850_SDA_16_16_OFFSET: | |
1523 | case R_V850_SDA_16_16_SPLIT_OFFSET: | |
1524 | { | |
1525 | unsigned long gp; | |
1526 | struct bfd_link_hash_entry * h; | |
1527 | ||
1528 | if (sym_sec == NULL) | |
1529 | return bfd_reloc_undefined; | |
435b1e90 | 1530 | |
252b5132 | 1531 | /* Get the value of __gp. */ |
b34976b6 | 1532 | h = bfd_link_hash_lookup (info->hash, "__gp", FALSE, FALSE, TRUE); |
252b5132 RH |
1533 | if (h == (struct bfd_link_hash_entry *) NULL |
1534 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1535 | return bfd_reloc_gp_not_found; |
252b5132 RH |
1536 | |
1537 | gp = (h->u.def.value | |
1538 | + h->u.def.section->output_section->vma | |
1539 | + h->u.def.section->output_offset); | |
1540 | ||
1541 | value -= sym_sec->output_section->vma; | |
1542 | value -= (gp - sym_sec->output_section->vma); | |
1543 | } | |
1544 | break; | |
1545 | ||
1546 | case R_V850_TDA_4_4_OFFSET: | |
1547 | case R_V850_TDA_4_5_OFFSET: | |
1548 | case R_V850_TDA_16_16_OFFSET: | |
1549 | case R_V850_TDA_7_7_OFFSET: | |
1550 | case R_V850_TDA_7_8_OFFSET: | |
1551 | case R_V850_TDA_6_8_OFFSET: | |
1552 | { | |
1553 | unsigned long ep; | |
1554 | struct bfd_link_hash_entry * h; | |
435b1e90 | 1555 | |
252b5132 | 1556 | /* Get the value of __ep. */ |
b34976b6 | 1557 | h = bfd_link_hash_lookup (info->hash, "__ep", FALSE, FALSE, TRUE); |
252b5132 RH |
1558 | if (h == (struct bfd_link_hash_entry *) NULL |
1559 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1560 | return bfd_reloc_ep_not_found; |
252b5132 RH |
1561 | |
1562 | ep = (h->u.def.value | |
1563 | + h->u.def.section->output_section->vma | |
1564 | + h->u.def.section->output_offset); | |
1565 | ||
1566 | value -= ep; | |
1567 | } | |
1568 | break; | |
435b1e90 | 1569 | |
252b5132 RH |
1570 | case R_V850_CALLT_6_7_OFFSET: |
1571 | { | |
1572 | unsigned long ctbp; | |
1573 | struct bfd_link_hash_entry * h; | |
435b1e90 | 1574 | |
252b5132 | 1575 | /* Get the value of __ctbp. */ |
b34976b6 | 1576 | h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); |
252b5132 RH |
1577 | if (h == (struct bfd_link_hash_entry *) NULL |
1578 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1579 | return bfd_reloc_ctbp_not_found; |
252b5132 RH |
1580 | |
1581 | ctbp = (h->u.def.value | |
1582 | + h->u.def.section->output_section->vma | |
1583 | + h->u.def.section->output_offset); | |
1584 | value -= ctbp; | |
1585 | } | |
1586 | break; | |
435b1e90 | 1587 | |
252b5132 RH |
1588 | case R_V850_CALLT_16_16_OFFSET: |
1589 | { | |
1590 | unsigned long ctbp; | |
1591 | struct bfd_link_hash_entry * h; | |
1592 | ||
1593 | if (sym_sec == NULL) | |
1594 | return bfd_reloc_undefined; | |
435b1e90 | 1595 | |
252b5132 | 1596 | /* Get the value of __ctbp. */ |
b34976b6 | 1597 | h = bfd_link_hash_lookup (info->hash, "__ctbp", FALSE, FALSE, TRUE); |
252b5132 RH |
1598 | if (h == (struct bfd_link_hash_entry *) NULL |
1599 | || h->type != bfd_link_hash_defined) | |
5cec6941 | 1600 | return bfd_reloc_ctbp_not_found; |
252b5132 RH |
1601 | |
1602 | ctbp = (h->u.def.value | |
1603 | + h->u.def.section->output_section->vma | |
1604 | + h->u.def.section->output_offset); | |
1605 | ||
1606 | value -= sym_sec->output_section->vma; | |
1607 | value -= (ctbp - sym_sec->output_section->vma); | |
1608 | } | |
1609 | break; | |
435b1e90 | 1610 | |
252b5132 RH |
1611 | case R_V850_NONE: |
1612 | case R_V850_GNU_VTINHERIT: | |
1613 | case R_V850_GNU_VTENTRY: | |
86aba9db NC |
1614 | case R_V850_LONGCALL: |
1615 | case R_V850_LONGJUMP: | |
1616 | case R_V850_ALIGN: | |
252b5132 RH |
1617 | return bfd_reloc_ok; |
1618 | ||
1619 | default: | |
1620 | return bfd_reloc_notsupported; | |
1621 | } | |
1622 | ||
1623 | /* Perform the relocation. */ | |
435b1e90 | 1624 | return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data); |
252b5132 | 1625 | } |
252b5132 RH |
1626 | \f |
1627 | /* Relocate an V850 ELF section. */ | |
e12dd2ea | 1628 | |
b34976b6 | 1629 | static bfd_boolean |
252b5132 RH |
1630 | v850_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
1631 | contents, relocs, local_syms, local_sections) | |
b34976b6 AM |
1632 | bfd *output_bfd; |
1633 | struct bfd_link_info *info; | |
1634 | bfd *input_bfd; | |
1635 | asection *input_section; | |
1636 | bfd_byte *contents; | |
1637 | Elf_Internal_Rela *relocs; | |
1638 | Elf_Internal_Sym *local_syms; | |
1639 | asection **local_sections; | |
252b5132 | 1640 | { |
b34976b6 AM |
1641 | Elf_Internal_Shdr *symtab_hdr; |
1642 | struct elf_link_hash_entry **sym_hashes; | |
1643 | Elf_Internal_Rela *rel; | |
1644 | Elf_Internal_Rela *relend; | |
252b5132 | 1645 | |
1049f94e | 1646 | if (info->relocatable) |
b34976b6 | 1647 | return TRUE; |
f0fe0e16 | 1648 | |
252b5132 RH |
1649 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
1650 | sym_hashes = elf_sym_hashes (input_bfd); | |
1651 | ||
1652 | if (sym_hashes == NULL) | |
1653 | { | |
1654 | info->callbacks->warning | |
dc810e39 AM |
1655 | (info, "no hash table available", |
1656 | NULL, input_bfd, input_section, (bfd_vma) 0); | |
252b5132 | 1657 | |
b34976b6 | 1658 | return FALSE; |
252b5132 | 1659 | } |
435b1e90 | 1660 | |
252b5132 RH |
1661 | /* Reset the list of remembered HI16S relocs to empty. */ |
1662 | free_hi16s = previous_hi16s; | |
1663 | previous_hi16s = NULL; | |
1664 | hi16s_counter = 0; | |
435b1e90 | 1665 | |
252b5132 RH |
1666 | rel = relocs; |
1667 | relend = relocs + input_section->reloc_count; | |
1668 | for (; rel < relend; rel++) | |
1669 | { | |
b34976b6 AM |
1670 | int r_type; |
1671 | reloc_howto_type *howto; | |
1672 | unsigned long r_symndx; | |
1673 | Elf_Internal_Sym *sym; | |
1674 | asection *sec; | |
1675 | struct elf_link_hash_entry *h; | |
1676 | bfd_vma relocation; | |
1677 | bfd_reloc_status_type r; | |
252b5132 RH |
1678 | |
1679 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1680 | r_type = ELF32_R_TYPE (rel->r_info); | |
1681 | ||
1682 | if (r_type == R_V850_GNU_VTENTRY | |
1683 | || r_type == R_V850_GNU_VTINHERIT) | |
1684 | continue; | |
1685 | ||
252b5132 | 1686 | /* This is a final link. */ |
f0fe0e16 | 1687 | howto = v850_elf_howto_table + r_type; |
252b5132 RH |
1688 | h = NULL; |
1689 | sym = NULL; | |
1690 | sec = NULL; | |
1691 | if (r_symndx < symtab_hdr->sh_info) | |
1692 | { | |
1693 | sym = local_syms + r_symndx; | |
1694 | sec = local_sections[r_symndx]; | |
8517fae7 | 1695 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
1696 | } |
1697 | else | |
1698 | { | |
59c2e50f | 1699 | bfd_boolean unresolved_reloc, warned; |
435b1e90 | 1700 | |
b2a8e766 AM |
1701 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
1702 | r_symndx, symtab_hdr, sym_hashes, | |
1703 | h, sec, relocation, | |
1704 | unresolved_reloc, warned); | |
252b5132 RH |
1705 | } |
1706 | ||
e12dd2ea | 1707 | /* FIXME: We should use the addend, but the COFF relocations don't. */ |
252b5132 RH |
1708 | r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd, |
1709 | input_section, | |
1710 | contents, rel->r_offset, | |
1711 | relocation, rel->r_addend, | |
1712 | info, sec, h == NULL); | |
1713 | ||
1714 | if (r != bfd_reloc_ok) | |
1715 | { | |
1716 | const char * name; | |
1717 | const char * msg = (const char *)0; | |
1718 | ||
1719 | if (h != NULL) | |
1720 | name = h->root.root.string; | |
1721 | else | |
1722 | { | |
1723 | name = (bfd_elf_string_from_elf_section | |
1724 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1725 | if (name == NULL || *name == '\0') | |
1726 | name = bfd_section_name (input_bfd, sec); | |
1727 | } | |
1728 | ||
1729 | switch (r) | |
1730 | { | |
1731 | case bfd_reloc_overflow: | |
1732 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
1733 | (info, (h ? &h->root : NULL), name, howto->name, |
1734 | (bfd_vma) 0, input_bfd, input_section, | |
1735 | rel->r_offset))) | |
b34976b6 | 1736 | return FALSE; |
252b5132 RH |
1737 | break; |
1738 | ||
1739 | case bfd_reloc_undefined: | |
1740 | if (! ((*info->callbacks->undefined_symbol) | |
1741 | (info, name, input_bfd, input_section, | |
b34976b6 AM |
1742 | rel->r_offset, TRUE))) |
1743 | return FALSE; | |
252b5132 RH |
1744 | break; |
1745 | ||
1746 | case bfd_reloc_outofrange: | |
1747 | msg = _("internal error: out of range error"); | |
1748 | goto common_error; | |
1749 | ||
1750 | case bfd_reloc_notsupported: | |
1751 | msg = _("internal error: unsupported relocation error"); | |
1752 | goto common_error; | |
1753 | ||
1754 | case bfd_reloc_dangerous: | |
1755 | msg = _("internal error: dangerous relocation"); | |
1756 | goto common_error; | |
1757 | ||
5cec6941 | 1758 | case bfd_reloc_gp_not_found: |
252b5132 RH |
1759 | msg = _("could not locate special linker symbol __gp"); |
1760 | goto common_error; | |
1761 | ||
5cec6941 | 1762 | case bfd_reloc_ep_not_found: |
252b5132 RH |
1763 | msg = _("could not locate special linker symbol __ep"); |
1764 | goto common_error; | |
1765 | ||
5cec6941 | 1766 | case bfd_reloc_ctbp_not_found: |
252b5132 RH |
1767 | msg = _("could not locate special linker symbol __ctbp"); |
1768 | goto common_error; | |
435b1e90 | 1769 | |
252b5132 RH |
1770 | default: |
1771 | msg = _("internal error: unknown error"); | |
1772 | /* fall through */ | |
1773 | ||
1774 | common_error: | |
1775 | if (!((*info->callbacks->warning) | |
1776 | (info, msg, name, input_bfd, input_section, | |
1777 | rel->r_offset))) | |
b34976b6 | 1778 | return FALSE; |
252b5132 RH |
1779 | break; |
1780 | } | |
1781 | } | |
1782 | } | |
1783 | ||
b34976b6 | 1784 | return TRUE; |
252b5132 RH |
1785 | } |
1786 | ||
b34976b6 | 1787 | static bfd_boolean |
252b5132 | 1788 | v850_elf_gc_sweep_hook (abfd, info, sec, relocs) |
5f771d47 ILT |
1789 | bfd *abfd ATTRIBUTE_UNUSED; |
1790 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1791 | asection *sec ATTRIBUTE_UNUSED; | |
1792 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; | |
252b5132 | 1793 | { |
e12dd2ea | 1794 | /* No got and plt entries for v850-elf. */ |
b34976b6 | 1795 | return TRUE; |
252b5132 RH |
1796 | } |
1797 | ||
1798 | static asection * | |
1e2f5b6e AM |
1799 | v850_elf_gc_mark_hook (sec, info, rel, h, sym) |
1800 | asection *sec; | |
5f771d47 | 1801 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
1802 | Elf_Internal_Rela *rel; |
1803 | struct elf_link_hash_entry *h; | |
1804 | Elf_Internal_Sym *sym; | |
1805 | { | |
1806 | if (h != NULL) | |
1807 | { | |
1808 | switch (ELF32_R_TYPE (rel->r_info)) | |
1809 | { | |
1810 | case R_V850_GNU_VTINHERIT: | |
1811 | case R_V850_GNU_VTENTRY: | |
1812 | break; | |
1813 | ||
1814 | default: | |
1815 | switch (h->root.type) | |
1816 | { | |
1817 | case bfd_link_hash_defined: | |
1818 | case bfd_link_hash_defweak: | |
1819 | return h->root.u.def.section; | |
1820 | ||
1821 | case bfd_link_hash_common: | |
1822 | return h->root.u.c.p->section; | |
e049a0de ILT |
1823 | |
1824 | default: | |
1825 | break; | |
252b5132 RH |
1826 | } |
1827 | } | |
1828 | } | |
1829 | else | |
1e2f5b6e | 1830 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
9ad5cbcf | 1831 | |
252b5132 RH |
1832 | return NULL; |
1833 | } | |
e12dd2ea | 1834 | |
252b5132 | 1835 | /* Set the right machine number. */ |
e12dd2ea | 1836 | |
b34976b6 | 1837 | static bfd_boolean |
252b5132 RH |
1838 | v850_elf_object_p (abfd) |
1839 | bfd *abfd; | |
1840 | { | |
1841 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) | |
1842 | { | |
1843 | default: | |
250d94fd AM |
1844 | case E_V850_ARCH: |
1845 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850); | |
1846 | break; | |
1847 | case E_V850E_ARCH: | |
1848 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e); | |
1849 | break; | |
8ad30312 NC |
1850 | case E_V850E1_ARCH: |
1851 | bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e1); | |
1852 | break; | |
252b5132 | 1853 | } |
b34976b6 | 1854 | return TRUE; |
252b5132 RH |
1855 | } |
1856 | ||
1857 | /* Store the machine number in the flags field. */ | |
e12dd2ea | 1858 | |
252b5132 RH |
1859 | static void |
1860 | v850_elf_final_write_processing (abfd, linker) | |
b34976b6 AM |
1861 | bfd *abfd; |
1862 | bfd_boolean linker ATTRIBUTE_UNUSED; | |
252b5132 RH |
1863 | { |
1864 | unsigned long val; | |
1865 | ||
1866 | switch (bfd_get_mach (abfd)) | |
1867 | { | |
b34976b6 | 1868 | default: |
250d94fd AM |
1869 | case bfd_mach_v850: val = E_V850_ARCH; break; |
1870 | case bfd_mach_v850e: val = E_V850E_ARCH; break; | |
8ad30312 | 1871 | case bfd_mach_v850e1: val = E_V850E1_ARCH; break; |
252b5132 RH |
1872 | } |
1873 | ||
1874 | elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH; | |
1875 | elf_elfheader (abfd)->e_flags |= val; | |
1876 | } | |
1877 | ||
435b1e90 | 1878 | /* Function to keep V850 specific file flags. */ |
e12dd2ea | 1879 | |
b34976b6 | 1880 | static bfd_boolean |
252b5132 | 1881 | v850_elf_set_private_flags (abfd, flags) |
b34976b6 | 1882 | bfd *abfd; |
252b5132 RH |
1883 | flagword flags; |
1884 | { | |
1885 | BFD_ASSERT (!elf_flags_init (abfd) | |
1886 | || elf_elfheader (abfd)->e_flags == flags); | |
1887 | ||
1888 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 AM |
1889 | elf_flags_init (abfd) = TRUE; |
1890 | return TRUE; | |
252b5132 RH |
1891 | } |
1892 | ||
e12dd2ea NC |
1893 | /* Merge backend specific data from an object file |
1894 | to the output object file when linking. */ | |
b34976b6 | 1895 | static bfd_boolean |
252b5132 | 1896 | v850_elf_merge_private_bfd_data (ibfd, obfd) |
b34976b6 AM |
1897 | bfd *ibfd; |
1898 | bfd *obfd; | |
252b5132 RH |
1899 | { |
1900 | flagword out_flags; | |
1901 | flagword in_flags; | |
1902 | ||
1903 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
1904 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
b34976b6 | 1905 | return TRUE; |
252b5132 RH |
1906 | |
1907 | in_flags = elf_elfheader (ibfd)->e_flags; | |
1908 | out_flags = elf_elfheader (obfd)->e_flags; | |
1909 | ||
1910 | if (! elf_flags_init (obfd)) | |
1911 | { | |
1912 | /* If the input is the default architecture then do not | |
1913 | bother setting the flags for the output architecture, | |
1914 | instead allow future merges to do this. If no future | |
1915 | merges ever set these flags then they will retain their | |
1916 | unitialised values, which surprise surprise, correspond | |
1917 | to the default values. */ | |
1918 | if (bfd_get_arch_info (ibfd)->the_default) | |
b34976b6 | 1919 | return TRUE; |
435b1e90 | 1920 | |
b34976b6 | 1921 | elf_flags_init (obfd) = TRUE; |
252b5132 RH |
1922 | elf_elfheader (obfd)->e_flags = in_flags; |
1923 | ||
1924 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) | |
1925 | && bfd_get_arch_info (obfd)->the_default) | |
e12dd2ea | 1926 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); |
252b5132 | 1927 | |
b34976b6 | 1928 | return TRUE; |
252b5132 RH |
1929 | } |
1930 | ||
1931 | /* Check flag compatibility. */ | |
1932 | if (in_flags == out_flags) | |
b34976b6 | 1933 | return TRUE; |
252b5132 RH |
1934 | |
1935 | if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH) | |
1936 | && (in_flags & EF_V850_ARCH) != E_V850_ARCH) | |
8ad30312 NC |
1937 | { |
1938 | /* Allow v850e1 binaries to be linked with v850e binaries. | |
1939 | Set the output binary to v850e. */ | |
1940 | if ((in_flags & EF_V850_ARCH) == E_V850E1_ARCH | |
1941 | && (out_flags & EF_V850_ARCH) == E_V850E_ARCH) | |
1942 | return TRUE; | |
1943 | ||
1944 | if ((in_flags & EF_V850_ARCH) == E_V850E_ARCH | |
1945 | && (out_flags & EF_V850_ARCH) == E_V850E1_ARCH) | |
1946 | { | |
1947 | elf_elfheader (obfd)->e_flags = | |
1948 | ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH); | |
1949 | return TRUE; | |
1950 | } | |
1951 | ||
d003868e AM |
1952 | _bfd_error_handler (_("%B: Architecture mismatch with previous modules"), |
1953 | ibfd); | |
8ad30312 | 1954 | } |
252b5132 | 1955 | |
b34976b6 | 1956 | return TRUE; |
252b5132 | 1957 | } |
e12dd2ea NC |
1958 | |
1959 | /* Display the flags field. */ | |
252b5132 | 1960 | |
b34976b6 | 1961 | static bfd_boolean |
252b5132 | 1962 | v850_elf_print_private_bfd_data (abfd, ptr) |
b34976b6 AM |
1963 | bfd *abfd; |
1964 | PTR ptr; | |
252b5132 RH |
1965 | { |
1966 | FILE * file = (FILE *) ptr; | |
435b1e90 | 1967 | |
252b5132 | 1968 | BFD_ASSERT (abfd != NULL && ptr != NULL); |
435b1e90 | 1969 | |
252b5132 | 1970 | _bfd_elf_print_private_bfd_data (abfd, ptr); |
435b1e90 | 1971 | |
252b5132 RH |
1972 | /* xgettext:c-format */ |
1973 | fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags); | |
435b1e90 | 1974 | |
252b5132 RH |
1975 | switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH) |
1976 | { | |
1977 | default: | |
1978 | case E_V850_ARCH: fprintf (file, _("v850 architecture")); break; | |
1979 | case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break; | |
8ad30312 | 1980 | case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break; |
252b5132 | 1981 | } |
435b1e90 | 1982 | |
252b5132 | 1983 | fputc ('\n', file); |
435b1e90 | 1984 | |
b34976b6 | 1985 | return TRUE; |
252b5132 RH |
1986 | } |
1987 | ||
1988 | /* V850 ELF uses four common sections. One is the usual one, and the | |
1989 | others are for (small) objects in one of the special data areas: | |
1990 | small, tiny and zero. All the objects are kept together, and then | |
1991 | referenced via the gp register, the ep register or the r0 register | |
1992 | respectively, which yields smaller, faster assembler code. This | |
1993 | approach is copied from elf32-mips.c. */ | |
1994 | ||
1995 | static asection v850_elf_scom_section; | |
1996 | static asymbol v850_elf_scom_symbol; | |
1997 | static asymbol * v850_elf_scom_symbol_ptr; | |
1998 | static asection v850_elf_tcom_section; | |
1999 | static asymbol v850_elf_tcom_symbol; | |
2000 | static asymbol * v850_elf_tcom_symbol_ptr; | |
2001 | static asection v850_elf_zcom_section; | |
2002 | static asymbol v850_elf_zcom_symbol; | |
2003 | static asymbol * v850_elf_zcom_symbol_ptr; | |
2004 | ||
e12dd2ea NC |
2005 | /* Given a BFD section, try to locate the |
2006 | corresponding ELF section index. */ | |
252b5132 | 2007 | |
b34976b6 | 2008 | static bfd_boolean |
af746e92 | 2009 | v850_elf_section_from_bfd_section (abfd, sec, retval) |
b34976b6 AM |
2010 | bfd *abfd ATTRIBUTE_UNUSED; |
2011 | asection *sec; | |
2012 | int *retval; | |
252b5132 RH |
2013 | { |
2014 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) | |
2015 | *retval = SHN_V850_SCOMMON; | |
2016 | else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0) | |
2017 | *retval = SHN_V850_TCOMMON; | |
2018 | else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0) | |
2019 | *retval = SHN_V850_ZCOMMON; | |
2020 | else | |
b34976b6 | 2021 | return FALSE; |
435b1e90 | 2022 | |
b34976b6 | 2023 | return TRUE; |
252b5132 RH |
2024 | } |
2025 | ||
2026 | /* Handle the special V850 section numbers that a symbol may use. */ | |
2027 | ||
2028 | static void | |
2029 | v850_elf_symbol_processing (abfd, asym) | |
b34976b6 AM |
2030 | bfd *abfd; |
2031 | asymbol *asym; | |
252b5132 RH |
2032 | { |
2033 | elf_symbol_type * elfsym = (elf_symbol_type *) asym; | |
9ad5cbcf | 2034 | unsigned int indx; |
435b1e90 | 2035 | |
9ad5cbcf | 2036 | indx = elfsym->internal_elf_sym.st_shndx; |
252b5132 RH |
2037 | |
2038 | /* If the section index is an "ordinary" index, then it may | |
2039 | refer to a v850 specific section created by the assembler. | |
2040 | Check the section's type and change the index it matches. | |
435b1e90 | 2041 | |
252b5132 | 2042 | FIXME: Should we alter the st_shndx field as well ? */ |
435b1e90 | 2043 | |
9ad5cbcf AM |
2044 | if (indx < elf_numsections (abfd)) |
2045 | switch (elf_elfsections(abfd)[indx]->sh_type) | |
252b5132 RH |
2046 | { |
2047 | case SHT_V850_SCOMMON: | |
9ad5cbcf | 2048 | indx = SHN_V850_SCOMMON; |
252b5132 | 2049 | break; |
435b1e90 | 2050 | |
252b5132 | 2051 | case SHT_V850_TCOMMON: |
9ad5cbcf | 2052 | indx = SHN_V850_TCOMMON; |
252b5132 | 2053 | break; |
435b1e90 | 2054 | |
252b5132 | 2055 | case SHT_V850_ZCOMMON: |
9ad5cbcf | 2056 | indx = SHN_V850_ZCOMMON; |
252b5132 | 2057 | break; |
435b1e90 | 2058 | |
252b5132 RH |
2059 | default: |
2060 | break; | |
2061 | } | |
435b1e90 | 2062 | |
9ad5cbcf | 2063 | switch (indx) |
252b5132 RH |
2064 | { |
2065 | case SHN_V850_SCOMMON: | |
2066 | if (v850_elf_scom_section.name == NULL) | |
2067 | { | |
2068 | /* Initialize the small common section. */ | |
2069 | v850_elf_scom_section.name = ".scommon"; | |
2070 | v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA; | |
2071 | v850_elf_scom_section.output_section = & v850_elf_scom_section; | |
2072 | v850_elf_scom_section.symbol = & v850_elf_scom_symbol; | |
2073 | v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr; | |
2074 | v850_elf_scom_symbol.name = ".scommon"; | |
2075 | v850_elf_scom_symbol.flags = BSF_SECTION_SYM; | |
2076 | v850_elf_scom_symbol.section = & v850_elf_scom_section; | |
2077 | v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol; | |
2078 | } | |
2079 | asym->section = & v850_elf_scom_section; | |
2080 | asym->value = elfsym->internal_elf_sym.st_size; | |
2081 | break; | |
435b1e90 | 2082 | |
252b5132 RH |
2083 | case SHN_V850_TCOMMON: |
2084 | if (v850_elf_tcom_section.name == NULL) | |
2085 | { | |
2086 | /* Initialize the tcommon section. */ | |
2087 | v850_elf_tcom_section.name = ".tcommon"; | |
2088 | v850_elf_tcom_section.flags = SEC_IS_COMMON; | |
2089 | v850_elf_tcom_section.output_section = & v850_elf_tcom_section; | |
2090 | v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol; | |
2091 | v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr; | |
2092 | v850_elf_tcom_symbol.name = ".tcommon"; | |
2093 | v850_elf_tcom_symbol.flags = BSF_SECTION_SYM; | |
2094 | v850_elf_tcom_symbol.section = & v850_elf_tcom_section; | |
2095 | v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol; | |
2096 | } | |
2097 | asym->section = & v850_elf_tcom_section; | |
2098 | asym->value = elfsym->internal_elf_sym.st_size; | |
2099 | break; | |
2100 | ||
2101 | case SHN_V850_ZCOMMON: | |
2102 | if (v850_elf_zcom_section.name == NULL) | |
2103 | { | |
2104 | /* Initialize the zcommon section. */ | |
2105 | v850_elf_zcom_section.name = ".zcommon"; | |
2106 | v850_elf_zcom_section.flags = SEC_IS_COMMON; | |
2107 | v850_elf_zcom_section.output_section = & v850_elf_zcom_section; | |
2108 | v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol; | |
2109 | v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr; | |
2110 | v850_elf_zcom_symbol.name = ".zcommon"; | |
2111 | v850_elf_zcom_symbol.flags = BSF_SECTION_SYM; | |
2112 | v850_elf_zcom_symbol.section = & v850_elf_zcom_section; | |
2113 | v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol; | |
2114 | } | |
2115 | asym->section = & v850_elf_zcom_section; | |
2116 | asym->value = elfsym->internal_elf_sym.st_size; | |
2117 | break; | |
2118 | } | |
2119 | } | |
2120 | ||
2121 | /* Hook called by the linker routine which adds symbols from an object | |
2122 | file. We must handle the special v850 section numbers here. */ | |
2123 | ||
b34976b6 | 2124 | static bfd_boolean |
252b5132 | 2125 | v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
b34976b6 AM |
2126 | bfd *abfd; |
2127 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
555cd476 | 2128 | Elf_Internal_Sym *sym; |
b34976b6 AM |
2129 | const char **namep ATTRIBUTE_UNUSED; |
2130 | flagword *flagsp ATTRIBUTE_UNUSED; | |
2131 | asection **secp; | |
2132 | bfd_vma *valp; | |
252b5132 | 2133 | { |
9ad5cbcf | 2134 | unsigned int indx = sym->st_shndx; |
435b1e90 | 2135 | |
252b5132 RH |
2136 | /* If the section index is an "ordinary" index, then it may |
2137 | refer to a v850 specific section created by the assembler. | |
2138 | Check the section's type and change the index it matches. | |
435b1e90 | 2139 | |
252b5132 | 2140 | FIXME: Should we alter the st_shndx field as well ? */ |
435b1e90 | 2141 | |
9ad5cbcf AM |
2142 | if (indx < elf_numsections (abfd)) |
2143 | switch (elf_elfsections(abfd)[indx]->sh_type) | |
252b5132 RH |
2144 | { |
2145 | case SHT_V850_SCOMMON: | |
9ad5cbcf | 2146 | indx = SHN_V850_SCOMMON; |
252b5132 | 2147 | break; |
435b1e90 | 2148 | |
252b5132 | 2149 | case SHT_V850_TCOMMON: |
9ad5cbcf | 2150 | indx = SHN_V850_TCOMMON; |
252b5132 | 2151 | break; |
435b1e90 | 2152 | |
252b5132 | 2153 | case SHT_V850_ZCOMMON: |
9ad5cbcf | 2154 | indx = SHN_V850_ZCOMMON; |
252b5132 | 2155 | break; |
435b1e90 | 2156 | |
252b5132 RH |
2157 | default: |
2158 | break; | |
2159 | } | |
435b1e90 | 2160 | |
9ad5cbcf | 2161 | switch (indx) |
252b5132 RH |
2162 | { |
2163 | case SHN_V850_SCOMMON: | |
2164 | *secp = bfd_make_section_old_way (abfd, ".scommon"); | |
2165 | (*secp)->flags |= SEC_IS_COMMON; | |
2166 | *valp = sym->st_size; | |
2167 | break; | |
435b1e90 | 2168 | |
252b5132 RH |
2169 | case SHN_V850_TCOMMON: |
2170 | *secp = bfd_make_section_old_way (abfd, ".tcommon"); | |
2171 | (*secp)->flags |= SEC_IS_COMMON; | |
2172 | *valp = sym->st_size; | |
2173 | break; | |
435b1e90 | 2174 | |
252b5132 RH |
2175 | case SHN_V850_ZCOMMON: |
2176 | *secp = bfd_make_section_old_way (abfd, ".zcommon"); | |
2177 | (*secp)->flags |= SEC_IS_COMMON; | |
2178 | *valp = sym->st_size; | |
2179 | break; | |
2180 | } | |
2181 | ||
b34976b6 | 2182 | return TRUE; |
252b5132 RH |
2183 | } |
2184 | ||
b34976b6 | 2185 | static bfd_boolean |
754021d0 | 2186 | v850_elf_link_output_symbol_hook (info, name, sym, input_sec, h) |
b34976b6 AM |
2187 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
2188 | const char *name ATTRIBUTE_UNUSED; | |
2189 | Elf_Internal_Sym *sym; | |
2190 | asection *input_sec; | |
754021d0 | 2191 | struct elf_link_hash_entry *h ATTRIBUTE_UNUSED; |
252b5132 RH |
2192 | { |
2193 | /* If we see a common symbol, which implies a relocatable link, then | |
2194 | if a symbol was in a special common section in an input file, mark | |
2195 | it as a special common in the output file. */ | |
435b1e90 | 2196 | |
252b5132 RH |
2197 | if (sym->st_shndx == SHN_COMMON) |
2198 | { | |
2199 | if (strcmp (input_sec->name, ".scommon") == 0) | |
2200 | sym->st_shndx = SHN_V850_SCOMMON; | |
2201 | else if (strcmp (input_sec->name, ".tcommon") == 0) | |
2202 | sym->st_shndx = SHN_V850_TCOMMON; | |
2203 | else if (strcmp (input_sec->name, ".zcommon") == 0) | |
2204 | sym->st_shndx = SHN_V850_ZCOMMON; | |
2205 | } | |
2206 | ||
b34976b6 | 2207 | return TRUE; |
252b5132 RH |
2208 | } |
2209 | ||
b34976b6 | 2210 | static bfd_boolean |
6dc132d9 L |
2211 | v850_elf_section_from_shdr (bfd *abfd, |
2212 | Elf_Internal_Shdr *hdr, | |
2213 | const char *name, | |
2214 | int shindex) | |
252b5132 RH |
2215 | { |
2216 | /* There ought to be a place to keep ELF backend specific flags, but | |
2217 | at the moment there isn't one. We just keep track of the | |
2218 | sections by their name, instead. */ | |
2219 | ||
6dc132d9 | 2220 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 2221 | return FALSE; |
252b5132 RH |
2222 | |
2223 | switch (hdr->sh_type) | |
2224 | { | |
2225 | case SHT_V850_SCOMMON: | |
2226 | case SHT_V850_TCOMMON: | |
2227 | case SHT_V850_ZCOMMON: | |
2228 | if (! bfd_set_section_flags (abfd, hdr->bfd_section, | |
2229 | (bfd_get_section_flags (abfd, | |
2230 | hdr->bfd_section) | |
2231 | | SEC_IS_COMMON))) | |
b34976b6 | 2232 | return FALSE; |
252b5132 RH |
2233 | } |
2234 | ||
b34976b6 | 2235 | return TRUE; |
252b5132 RH |
2236 | } |
2237 | ||
e12dd2ea NC |
2238 | /* Set the correct type for a V850 ELF section. We do this |
2239 | by the section name, which is a hack, but ought to work. */ | |
2240 | ||
b34976b6 | 2241 | static bfd_boolean |
252b5132 | 2242 | v850_elf_fake_sections (abfd, hdr, sec) |
b34976b6 AM |
2243 | bfd *abfd ATTRIBUTE_UNUSED; |
2244 | Elf_Internal_Shdr *hdr; | |
2245 | asection *sec; | |
252b5132 RH |
2246 | { |
2247 | register const char * name; | |
2248 | ||
2249 | name = bfd_get_section_name (abfd, sec); | |
2250 | ||
2251 | if (strcmp (name, ".scommon") == 0) | |
2252 | { | |
2253 | hdr->sh_type = SHT_V850_SCOMMON; | |
2254 | } | |
2255 | else if (strcmp (name, ".tcommon") == 0) | |
2256 | { | |
2257 | hdr->sh_type = SHT_V850_TCOMMON; | |
2258 | } | |
2259 | else if (strcmp (name, ".zcommon") == 0) | |
2260 | hdr->sh_type = SHT_V850_ZCOMMON; | |
435b1e90 | 2261 | |
b34976b6 | 2262 | return TRUE; |
252b5132 | 2263 | } |
86aba9db NC |
2264 | |
2265 | /* Delete some bytes from a section while relaxing. */ | |
2266 | ||
b34976b6 | 2267 | static bfd_boolean |
86aba9db | 2268 | v850_elf_relax_delete_bytes (abfd, sec, addr, toaddr, count) |
b34976b6 AM |
2269 | bfd *abfd; |
2270 | asection *sec; | |
2271 | bfd_vma addr; | |
2272 | bfd_vma toaddr; | |
2273 | int count; | |
86aba9db | 2274 | { |
b34976b6 AM |
2275 | Elf_Internal_Shdr *symtab_hdr; |
2276 | Elf32_External_Sym *extsyms; | |
2277 | Elf32_External_Sym *esym; | |
2278 | Elf32_External_Sym *esymend; | |
2279 | int index; | |
2280 | unsigned int sec_shndx; | |
2281 | bfd_byte *contents; | |
2282 | Elf_Internal_Rela *irel; | |
2283 | Elf_Internal_Rela *irelend; | |
2284 | struct elf_link_hash_entry *sym_hash; | |
2285 | Elf_Internal_Shdr *shndx_hdr; | |
2286 | Elf_External_Sym_Shndx *shndx; | |
86aba9db NC |
2287 | |
2288 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
2289 | extsyms = (Elf32_External_Sym *) symtab_hdr->contents; | |
2290 | ||
2291 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
2292 | ||
2293 | contents = elf_section_data (sec)->this_hdr.contents; | |
2294 | ||
2295 | /* The deletion must stop at the next ALIGN reloc for an alignment | |
2296 | power larger than the number of bytes we are deleting. */ | |
2297 | ||
2298 | /* Actually delete the bytes. */ | |
2299 | #if (DEBUG_RELAX & 2) | |
2300 | fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n", | |
2301 | sec->name, addr, toaddr, count ); | |
2302 | #endif | |
2303 | memmove (contents + addr, contents + addr + count, | |
2304 | toaddr - addr - count); | |
2305 | memset (contents + toaddr-count, 0, count); | |
2306 | ||
2307 | /* Adjust all the relocs. */ | |
2308 | irel = elf_section_data (sec)->relocs; | |
2309 | irelend = irel + sec->reloc_count; | |
2310 | shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; | |
2311 | shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents; | |
2312 | ||
2313 | for (; irel < irelend; irel++) | |
2314 | { | |
2315 | bfd_vma raddr, paddr, symval; | |
2316 | Elf_Internal_Sym isym; | |
2317 | ||
2318 | /* Get the new reloc address. */ | |
2319 | raddr = irel->r_offset; | |
2320 | if ((raddr >= (addr + count) && raddr < toaddr)) | |
b34976b6 | 2321 | irel->r_offset -= count; |
86aba9db NC |
2322 | |
2323 | if (raddr >= addr && raddr < addr + count) | |
2324 | { | |
2325 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
2326 | (int) R_V850_NONE); | |
2327 | continue; | |
2328 | } | |
b34976b6 | 2329 | |
86aba9db NC |
2330 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN) |
2331 | continue; | |
2332 | ||
2333 | bfd_elf32_swap_symbol_in (abfd, | |
2334 | extsyms + ELF32_R_SYM (irel->r_info), | |
2335 | shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL, | |
2336 | & isym); | |
b34976b6 | 2337 | |
86aba9db NC |
2338 | if (isym.st_shndx != sec_shndx) |
2339 | continue; | |
2340 | ||
2341 | /* Get the value of the symbol referred to by the reloc. */ | |
2342 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
2343 | { | |
2344 | symval = isym.st_value; | |
2345 | #if (DEBUG_RELAX & 2) | |
2346 | { | |
2347 | char * name = bfd_elf_string_from_elf_section | |
2348 | (abfd, symtab_hdr->sh_link, isym.st_name); | |
2349 | fprintf (stderr, | |
2350 | "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", | |
2351 | sec->name, name, isym.st_name, | |
2352 | sec->output_section->vma, sec->output_offset, | |
2353 | isym.st_value, irel->r_addend); | |
2354 | } | |
2355 | #endif | |
2356 | } | |
2357 | else | |
2358 | { | |
2359 | unsigned long indx; | |
2360 | struct elf_link_hash_entry * h; | |
2361 | ||
2362 | /* An external symbol. */ | |
2363 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2364 | ||
2365 | h = elf_sym_hashes (abfd) [indx]; | |
2366 | BFD_ASSERT (h != NULL); | |
2367 | ||
2368 | symval = h->root.u.def.value; | |
2369 | #if (DEBUG_RELAX & 2) | |
2370 | fprintf (stderr, | |
2371 | "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", | |
2372 | sec->name, h->root.root.string, h->root.u.def.value, | |
2373 | sec->output_section->vma, sec->output_offset, irel->r_addend); | |
2374 | #endif | |
2375 | } | |
b34976b6 | 2376 | |
86aba9db | 2377 | paddr = symval + irel->r_addend; |
b34976b6 | 2378 | |
86aba9db NC |
2379 | if ( (symval >= addr + count && symval < toaddr) |
2380 | && (paddr < addr + count || paddr >= toaddr)) | |
2381 | irel->r_addend += count; | |
2382 | else if ( (symval < addr + count || symval >= toaddr) | |
2383 | && (paddr >= addr + count && paddr < toaddr)) | |
2384 | irel->r_addend -= count; | |
2385 | } | |
2386 | ||
2387 | /* Adjust the local symbols defined in this section. */ | |
2388 | esym = extsyms; | |
2389 | esymend = esym + symtab_hdr->sh_info; | |
2390 | ||
2391 | for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) | |
2392 | { | |
2393 | Elf_Internal_Sym isym; | |
2394 | ||
2395 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); | |
2396 | ||
2397 | if (isym.st_shndx == sec_shndx | |
2398 | && isym.st_value >= addr + count | |
2399 | && isym.st_value < toaddr) | |
2400 | { | |
2401 | isym.st_value -= count; | |
2402 | ||
2403 | if (isym.st_value + isym.st_size >= toaddr) | |
b34976b6 AM |
2404 | isym.st_size += count; |
2405 | ||
63a23799 | 2406 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2407 | } |
2408 | else if (isym.st_shndx == sec_shndx | |
2409 | && isym.st_value < addr + count) | |
2410 | { | |
2411 | if (isym.st_value+isym.st_size >= addr + count | |
2412 | && isym.st_value+isym.st_size < toaddr) | |
2413 | isym.st_size -= count; | |
2414 | ||
2415 | if (isym.st_value >= addr | |
2416 | && isym.st_value < addr + count) | |
2417 | isym.st_value = addr; | |
2418 | ||
63a23799 | 2419 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2420 | } |
2421 | } | |
2422 | ||
2423 | /* Now adjust the global symbols defined in this section. */ | |
2424 | esym = extsyms + symtab_hdr->sh_info; | |
2425 | esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); | |
2426 | ||
2427 | for (index = 0; esym < esymend; esym ++, index ++) | |
2428 | { | |
2429 | Elf_Internal_Sym isym; | |
2430 | ||
2431 | bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym); | |
2432 | sym_hash = elf_sym_hashes (abfd) [index]; | |
2433 | ||
2434 | if (isym.st_shndx == sec_shndx | |
2435 | && ((sym_hash)->root.type == bfd_link_hash_defined | |
2436 | || (sym_hash)->root.type == bfd_link_hash_defweak) | |
2437 | && (sym_hash)->root.u.def.section == sec | |
2438 | && (sym_hash)->root.u.def.value >= addr + count | |
2439 | && (sym_hash)->root.u.def.value < toaddr) | |
2440 | { | |
2441 | if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr) | |
2442 | { | |
2443 | isym.st_size += count; | |
63a23799 | 2444 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2445 | } |
2446 | ||
2447 | (sym_hash)->root.u.def.value -= count; | |
2448 | } | |
2449 | else if (isym.st_shndx == sec_shndx | |
2450 | && ((sym_hash)->root.type == bfd_link_hash_defined | |
2451 | || (sym_hash)->root.type == bfd_link_hash_defweak) | |
2452 | && (sym_hash)->root.u.def.section == sec | |
2453 | && (sym_hash)->root.u.def.value < addr + count) | |
2454 | { | |
2455 | if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count | |
2456 | && (sym_hash)->root.u.def.value+isym.st_size < toaddr) | |
2457 | isym.st_size -= count; | |
2458 | ||
2459 | if ((sym_hash)->root.u.def.value >= addr | |
2460 | && (sym_hash)->root.u.def.value < addr + count) | |
2461 | (sym_hash)->root.u.def.value = addr; | |
2462 | ||
63a23799 | 2463 | bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx); |
86aba9db NC |
2464 | } |
2465 | ||
2466 | if (shndx) | |
2467 | ++ shndx; | |
2468 | } | |
2469 | ||
b34976b6 | 2470 | return TRUE; |
86aba9db NC |
2471 | } |
2472 | ||
2473 | #define NOP_OPCODE (0x0000) | |
b34976b6 | 2474 | #define MOVHI 0x0640 /* 4byte */ |
86aba9db | 2475 | #define MOVHI_MASK 0x07e0 |
b34976b6 | 2476 | #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte */ |
86aba9db NC |
2477 | #define MOVHI_R2(insn) ((insn) >> 11) |
2478 | #define MOVEA 0x0620 /* 2byte */ | |
2479 | #define MOVEA_MASK 0x07e0 | |
2480 | #define MOVEA_R1(insn) ((insn) & 0x1f) | |
2481 | #define MOVEA_R2(insn) ((insn) >> 11) | |
2482 | #define JARL_4 0x00040780 /* 4byte */ | |
2483 | #define JARL_4_MASK 0xFFFF07FF | |
2484 | #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11) | |
2485 | #define ADD_I 0x0240 /* 2byte */ | |
2486 | #define ADD_I_MASK 0x07e0 | |
2487 | #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte */ | |
2488 | #define ADD_R2(insn) ((insn) >> 11) | |
2489 | #define JMP_R 0x0060 /* 2byte */ | |
2490 | #define JMP_R_MASK 0xFFE0 | |
2491 | #define JMP_R1(insn) ((insn) & 0x1f) | |
2492 | ||
b34976b6 | 2493 | static bfd_boolean |
86aba9db | 2494 | v850_elf_relax_section (abfd, sec, link_info, again) |
b34976b6 AM |
2495 | bfd *abfd; |
2496 | asection *sec; | |
2497 | struct bfd_link_info *link_info; | |
2498 | bfd_boolean *again; | |
86aba9db | 2499 | { |
b34976b6 AM |
2500 | Elf_Internal_Shdr *symtab_hdr; |
2501 | Elf_Internal_Rela *internal_relocs; | |
2502 | Elf_Internal_Rela *irel; | |
2503 | Elf_Internal_Rela *irelend; | |
2504 | Elf_Internal_Rela *irelalign = NULL; | |
2505 | Elf_Internal_Sym *isymbuf = NULL; | |
2506 | bfd_byte *contents = NULL; | |
2507 | bfd_vma addr = 0; | |
2508 | bfd_vma toaddr; | |
2509 | int align_pad_size = 0; | |
2510 | bfd_boolean result = TRUE; | |
2511 | ||
2512 | *again = FALSE; | |
86aba9db | 2513 | |
1049f94e | 2514 | if (link_info->relocatable |
86aba9db NC |
2515 | || (sec->flags & SEC_RELOC) == 0 |
2516 | || sec->reloc_count == 0) | |
b34976b6 | 2517 | return TRUE; |
86aba9db | 2518 | |
86aba9db NC |
2519 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; |
2520 | ||
45d6a902 | 2521 | internal_relocs = (_bfd_elf_link_read_relocs |
86aba9db NC |
2522 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
2523 | link_info->keep_memory)); | |
2524 | if (internal_relocs == NULL) | |
2525 | goto error_return; | |
86aba9db NC |
2526 | |
2527 | irelend = internal_relocs + sec->reloc_count; | |
b34976b6 | 2528 | |
eea6121a | 2529 | while (addr < sec->size) |
86aba9db | 2530 | { |
eea6121a | 2531 | toaddr = sec->size; |
86aba9db NC |
2532 | |
2533 | for (irel = internal_relocs; irel < irelend; irel ++) | |
2534 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN | |
2535 | && irel->r_offset > addr | |
2536 | && irel->r_offset < toaddr) | |
2537 | toaddr = irel->r_offset; | |
b34976b6 | 2538 | |
86aba9db NC |
2539 | #ifdef DEBUG_RELAX |
2540 | fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n", | |
2541 | addr, toaddr, align_pad_size); | |
2542 | #endif | |
2543 | if (irelalign) | |
2544 | { | |
2545 | bfd_vma alignto; | |
2546 | bfd_vma alignmoveto; | |
2547 | ||
2548 | alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend); | |
2549 | alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend); | |
2550 | ||
2551 | if (alignmoveto < alignto) | |
2552 | { | |
2553 | unsigned int i; | |
2554 | ||
2555 | align_pad_size = alignto - alignmoveto; | |
2556 | #ifdef DEBUG_RELAX | |
2557 | fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n", | |
2558 | alignmoveto, toaddr, align_pad_size); | |
2559 | #endif | |
2560 | if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto, | |
2561 | toaddr, align_pad_size)) | |
b34976b6 | 2562 | goto error_return; |
86aba9db NC |
2563 | |
2564 | for (i = BFD_ALIGN (toaddr - align_pad_size, 1); | |
2565 | (i + 1) < toaddr; i += 2) | |
2566 | bfd_put_16 (abfd, NOP_OPCODE, contents + i); | |
2567 | ||
2568 | addr = alignmoveto; | |
2569 | } | |
2570 | else | |
2571 | align_pad_size = 0; | |
2572 | } | |
2573 | ||
2574 | for (irel = internal_relocs; irel < irelend; irel++) | |
2575 | { | |
b34976b6 AM |
2576 | bfd_vma laddr; |
2577 | bfd_vma addend; | |
2578 | bfd_vma symval; | |
2579 | int insn[5]; | |
2580 | int no_match = -1; | |
2581 | Elf_Internal_Rela *hi_irelfn; | |
2582 | Elf_Internal_Rela *lo_irelfn; | |
2583 | Elf_Internal_Rela *irelcall; | |
2584 | bfd_signed_vma foff; | |
86aba9db NC |
2585 | |
2586 | if (! (irel->r_offset >= addr && irel->r_offset < toaddr | |
2587 | && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL | |
2588 | || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP))) | |
2589 | continue; | |
2590 | ||
2591 | #ifdef DEBUG_RELAX | |
2592 | fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n", | |
2593 | irel->r_info, | |
2594 | irel->r_offset, | |
2595 | irel->r_addend ); | |
2596 | #endif | |
2597 | ||
2598 | /* Get the section contents. */ | |
2599 | if (contents == NULL) | |
2600 | { | |
2601 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
2602 | contents = elf_section_data (sec)->this_hdr.contents; | |
2603 | else | |
2604 | { | |
eea6121a | 2605 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
86aba9db NC |
2606 | goto error_return; |
2607 | } | |
2608 | } | |
2609 | ||
5cec6941 NC |
2610 | /* Read this BFD's local symbols if we haven't done so already. */ |
2611 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) | |
86aba9db | 2612 | { |
5cec6941 NC |
2613 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
2614 | if (isymbuf == NULL) | |
2615 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
2616 | symtab_hdr->sh_info, 0, | |
2617 | NULL, NULL, NULL); | |
2618 | if (isymbuf == NULL) | |
2619 | goto error_return; | |
86aba9db NC |
2620 | } |
2621 | ||
2622 | laddr = irel->r_offset; | |
2623 | ||
2624 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL) | |
2625 | { | |
2626 | /* Check code for -mlong-calls output. */ | |
eea6121a | 2627 | if (laddr + 16 <= (bfd_vma) sec->size) |
86aba9db NC |
2628 | { |
2629 | insn[0] = bfd_get_16 (abfd, contents + laddr); | |
2630 | insn[1] = bfd_get_16 (abfd, contents + laddr + 4); | |
2631 | insn[2] = bfd_get_32 (abfd, contents + laddr + 8); | |
2632 | insn[3] = bfd_get_16 (abfd, contents + laddr + 12); | |
2633 | insn[4] = bfd_get_16 (abfd, contents + laddr + 14); | |
b34976b6 | 2634 | |
86aba9db NC |
2635 | if ((insn[0] & MOVHI_MASK) != MOVHI |
2636 | || MOVHI_R1 (insn[0]) != 0) | |
2637 | no_match = 0; | |
2638 | ||
2639 | if (no_match < 0 | |
2640 | && ((insn[1] & MOVEA_MASK) != MOVEA | |
2641 | || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) | |
2642 | no_match = 1; | |
2643 | ||
2644 | if (no_match < 0 | |
2645 | && (insn[2] & JARL_4_MASK) != JARL_4) | |
2646 | no_match = 2; | |
2647 | ||
2648 | if (no_match < 0 | |
2649 | && ((insn[3] & ADD_I_MASK) != ADD_I | |
2650 | || ADD_I5 (insn[3]) != 4 | |
2651 | || JARL_R2 (insn[2]) != ADD_R2 (insn[3]))) | |
2652 | no_match = 3; | |
2653 | ||
2654 | if (no_match < 0 | |
2655 | && ((insn[4] & JMP_R_MASK) != JMP_R | |
2656 | || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4]))) | |
2657 | no_match = 4; | |
2658 | } | |
2659 | else | |
2660 | { | |
2661 | ((*_bfd_error_handler) | |
2662 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns", | |
2663 | bfd_get_filename (abfd), (unsigned long) irel->r_offset)); | |
2664 | ||
2665 | continue; | |
2666 | } | |
2667 | ||
2668 | if (no_match >= 0) | |
2669 | { | |
2670 | ((*_bfd_error_handler) | |
2671 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x", | |
2672 | bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); | |
2673 | ||
2674 | continue; | |
b34976b6 | 2675 | } |
86aba9db NC |
2676 | |
2677 | /* Get the reloc for the address from which the register is | |
2678 | being loaded. This reloc will tell us which function is | |
2679 | actually being called. */ | |
2680 | for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) | |
2681 | if (hi_irelfn->r_offset == laddr + 2 | |
b34976b6 | 2682 | && ELF32_R_TYPE (hi_irelfn->r_info) |
86aba9db NC |
2683 | == (int) R_V850_HI16_S) |
2684 | break; | |
2685 | ||
2686 | for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) | |
2687 | if (lo_irelfn->r_offset == laddr + 6 | |
2688 | && ELF32_R_TYPE (lo_irelfn->r_info) | |
2689 | == (int) R_V850_LO16) | |
2690 | break; | |
2691 | ||
2692 | for (irelcall = internal_relocs; irelcall < irelend; irelcall ++) | |
2693 | if (irelcall->r_offset == laddr + 8 | |
2694 | && ELF32_R_TYPE (irelcall->r_info) | |
2695 | == (int) R_V850_22_PCREL) | |
2696 | break; | |
2697 | ||
2698 | if ( hi_irelfn == irelend | |
2699 | || lo_irelfn == irelend | |
2700 | || irelcall == irelend) | |
2701 | { | |
2702 | ((*_bfd_error_handler) | |
2703 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc", | |
2704 | bfd_get_filename (abfd), (unsigned long) irel->r_offset )); | |
2705 | ||
2706 | continue; | |
2707 | } | |
b34976b6 | 2708 | |
86aba9db NC |
2709 | if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info) |
2710 | { | |
5cec6941 | 2711 | Elf_Internal_Sym * isym; |
86aba9db NC |
2712 | |
2713 | /* A local symbol. */ | |
5cec6941 | 2714 | isym = isymbuf + ELF32_R_SYM (irelcall->r_info); |
86aba9db | 2715 | |
5cec6941 | 2716 | symval = isym->st_value; |
86aba9db NC |
2717 | } |
2718 | else | |
2719 | { | |
2720 | unsigned long indx; | |
2721 | struct elf_link_hash_entry * h; | |
2722 | ||
2723 | /* An external symbol. */ | |
2724 | indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info; | |
2725 | h = elf_sym_hashes (abfd)[indx]; | |
2726 | BFD_ASSERT (h != NULL); | |
2727 | ||
2728 | if ( h->root.type != bfd_link_hash_defined | |
2729 | && h->root.type != bfd_link_hash_defweak) | |
2730 | /* This appears to be a reference to an undefined | |
2731 | symbol. Just ignore it--it will be caught by the | |
2732 | regular reloc processing. */ | |
2733 | continue; | |
2734 | ||
2735 | symval = h->root.u.def.value; | |
2736 | } | |
2737 | ||
2738 | if (symval + irelcall->r_addend != irelcall->r_offset + 4) | |
2739 | { | |
2740 | ((*_bfd_error_handler) | |
2741 | ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx", | |
2742 | bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset )); | |
2743 | ||
2744 | continue; | |
2745 | } | |
2746 | ||
2747 | /* Get the value of the symbol referred to by the reloc. */ | |
2748 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
2749 | { | |
b34976b6 AM |
2750 | Elf_Internal_Sym *isym; |
2751 | asection *sym_sec; | |
86aba9db NC |
2752 | |
2753 | /* A local symbol. */ | |
5cec6941 | 2754 | isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); |
b34976b6 | 2755 | |
5cec6941 | 2756 | if (isym->st_shndx == SHN_UNDEF) |
86aba9db | 2757 | sym_sec = bfd_und_section_ptr; |
5cec6941 | 2758 | else if (isym->st_shndx == SHN_ABS) |
86aba9db | 2759 | sym_sec = bfd_abs_section_ptr; |
5cec6941 | 2760 | else if (isym->st_shndx == SHN_COMMON) |
86aba9db NC |
2761 | sym_sec = bfd_com_section_ptr; |
2762 | else | |
5cec6941 NC |
2763 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
2764 | symval = (isym->st_value | |
86aba9db NC |
2765 | + sym_sec->output_section->vma |
2766 | + sym_sec->output_offset); | |
2767 | } | |
2768 | else | |
2769 | { | |
2770 | unsigned long indx; | |
b34976b6 | 2771 | struct elf_link_hash_entry *h; |
86aba9db NC |
2772 | |
2773 | /* An external symbol. */ | |
5cec6941 | 2774 | indx = ELF32_R_SYM (hi_irelfn->r_info) - symtab_hdr->sh_info; |
86aba9db NC |
2775 | h = elf_sym_hashes (abfd)[indx]; |
2776 | BFD_ASSERT (h != NULL); | |
2777 | ||
2778 | if ( h->root.type != bfd_link_hash_defined | |
2779 | && h->root.type != bfd_link_hash_defweak) | |
2780 | /* This appears to be a reference to an undefined | |
2781 | symbol. Just ignore it--it will be caught by the | |
2782 | regular reloc processing. */ | |
2783 | continue; | |
2784 | ||
2785 | symval = (h->root.u.def.value | |
2786 | + h->root.u.def.section->output_section->vma | |
2787 | + h->root.u.def.section->output_offset); | |
2788 | } | |
2789 | ||
2790 | addend = irel->r_addend; | |
2791 | ||
2792 | foff = (symval + addend | |
2793 | - (irel->r_offset | |
2794 | + sec->output_section->vma | |
2795 | + sec->output_offset | |
2796 | + 4)); | |
2797 | #ifdef DEBUG_RELAX | |
2798 | fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", | |
2799 | irel->r_offset, | |
2800 | (irel->r_offset | |
2801 | + sec->output_section->vma | |
2802 | + sec->output_offset), | |
2803 | symval, addend, foff); | |
2804 | #endif | |
2805 | ||
2806 | if (foff < -0x100000 || foff >= 0x100000) | |
2807 | /* After all that work, we can't shorten this function call. */ | |
2808 | continue; | |
2809 | ||
2810 | /* For simplicity of coding, we are going to modify the section | |
2811 | contents, the section relocs, and the BFD symbol table. We | |
2812 | must tell the rest of the code not to free up this | |
2813 | information. It would be possible to instead create a table | |
2814 | of changes which have to be made, as is done in coff-mips.c; | |
2815 | that would be more work, but would require less memory when | |
2816 | the linker is run. */ | |
2817 | elf_section_data (sec)->relocs = internal_relocs; | |
86aba9db | 2818 | elf_section_data (sec)->this_hdr.contents = contents; |
5cec6941 | 2819 | symtab_hdr->contents = (bfd_byte *) isymbuf; |
b34976b6 | 2820 | |
86aba9db NC |
2821 | /* Replace the long call with a jarl. */ |
2822 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL); | |
2823 | ||
2824 | addend = 0; | |
2825 | ||
2826 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
2827 | /* If this needs to be changed because of future relaxing, | |
2828 | it will be handled here like other internal IND12W | |
2829 | relocs. */ | |
2830 | bfd_put_32 (abfd, | |
2831 | 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf), | |
2832 | contents + irel->r_offset); | |
2833 | else | |
2834 | /* We can't fully resolve this yet, because the external | |
2835 | symbol value may be changed by future relaxing. | |
2836 | We let the final link phase handle it. */ | |
2837 | bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11), | |
2838 | contents + irel->r_offset); | |
2839 | ||
b34976b6 | 2840 | hi_irelfn->r_info = |
86aba9db NC |
2841 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); |
2842 | lo_irelfn->r_info = | |
2843 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
2844 | irelcall->r_info = | |
2845 | ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE); | |
2846 | ||
2847 | if (! v850_elf_relax_delete_bytes (abfd, sec, | |
2848 | irel->r_offset + 4, toaddr, 12)) | |
2849 | goto error_return; | |
2850 | ||
2851 | align_pad_size += 12; | |
2852 | } | |
2853 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP) | |
2854 | { | |
2855 | /* Check code for -mlong-jumps output. */ | |
eea6121a | 2856 | if (laddr + 10 <= (bfd_vma) sec->size) |
86aba9db NC |
2857 | { |
2858 | insn[0] = bfd_get_16 (abfd, contents + laddr); | |
2859 | insn[1] = bfd_get_16 (abfd, contents + laddr + 4); | |
2860 | insn[2] = bfd_get_16 (abfd, contents + laddr + 8); | |
2861 | ||
2862 | if ((insn[0] & MOVHI_MASK) != MOVHI | |
2863 | || MOVHI_R1 (insn[0]) != 0) | |
2864 | no_match = 0; | |
2865 | ||
2866 | if (no_match < 0 | |
2867 | && ((insn[1] & MOVEA_MASK) != MOVEA | |
2868 | || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1]))) | |
2869 | no_match = 1; | |
2870 | ||
2871 | if (no_match < 0 | |
2872 | && ((insn[2] & JMP_R_MASK) != JMP_R | |
2873 | || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2]))) | |
2874 | no_match = 4; | |
2875 | } | |
2876 | else | |
2877 | { | |
2878 | ((*_bfd_error_handler) | |
2879 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns", | |
2880 | bfd_get_filename (abfd), (unsigned long) irel->r_offset)); | |
2881 | ||
2882 | continue; | |
2883 | } | |
2884 | ||
2885 | if (no_match >= 0) | |
2886 | { | |
2887 | ((*_bfd_error_handler) | |
2888 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x", | |
2889 | bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match])); | |
2890 | ||
2891 | continue; | |
2892 | } | |
2893 | ||
2894 | /* Get the reloc for the address from which the register is | |
2895 | being loaded. This reloc will tell us which function is | |
2896 | actually being called. */ | |
2897 | for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++) | |
2898 | if (hi_irelfn->r_offset == laddr + 2 | |
b34976b6 | 2899 | && ELF32_R_TYPE (hi_irelfn->r_info) == (int) R_V850_HI16_S) |
86aba9db NC |
2900 | break; |
2901 | ||
2902 | for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++) | |
2903 | if (lo_irelfn->r_offset == laddr + 6 | |
2904 | && ELF32_R_TYPE (lo_irelfn->r_info) == (int) R_V850_LO16) | |
2905 | break; | |
2906 | ||
2907 | if ( hi_irelfn == irelend | |
2908 | || lo_irelfn == irelend) | |
2909 | { | |
2910 | ((*_bfd_error_handler) | |
2911 | ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc", | |
2912 | bfd_get_filename (abfd), (unsigned long) irel->r_offset )); | |
2913 | ||
2914 | continue; | |
2915 | } | |
b34976b6 | 2916 | |
86aba9db NC |
2917 | /* Get the value of the symbol referred to by the reloc. */ |
2918 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
2919 | { | |
5cec6941 NC |
2920 | Elf_Internal_Sym * isym; |
2921 | asection * sym_sec; | |
86aba9db NC |
2922 | |
2923 | /* A local symbol. */ | |
5cec6941 NC |
2924 | isym = isymbuf + ELF32_R_SYM (hi_irelfn->r_info); |
2925 | ||
2926 | if (isym->st_shndx == SHN_UNDEF) | |
86aba9db | 2927 | sym_sec = bfd_und_section_ptr; |
5cec6941 | 2928 | else if (isym->st_shndx == SHN_ABS) |
86aba9db | 2929 | sym_sec = bfd_abs_section_ptr; |
5cec6941 | 2930 | else if (isym->st_shndx == SHN_COMMON) |
86aba9db NC |
2931 | sym_sec = bfd_com_section_ptr; |
2932 | else | |
5cec6941 NC |
2933 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
2934 | symval = (isym->st_value | |
86aba9db NC |
2935 | + sym_sec->output_section->vma |
2936 | + sym_sec->output_offset); | |
2937 | #ifdef DEBUG_RELAX | |
2938 | { | |
2939 | char * name = bfd_elf_string_from_elf_section | |
5cec6941 | 2940 | (abfd, symtab_hdr->sh_link, isym->st_name); |
86aba9db NC |
2941 | |
2942 | fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n", | |
5cec6941 NC |
2943 | sym_sec->name, name, isym->st_name, |
2944 | sym_sec->output_section->vma, | |
2945 | sym_sec->output_offset, | |
2946 | isym->st_value, irel->r_addend); | |
86aba9db NC |
2947 | } |
2948 | #endif | |
2949 | } | |
2950 | else | |
2951 | { | |
2952 | unsigned long indx; | |
2953 | struct elf_link_hash_entry * h; | |
2954 | ||
2955 | /* An external symbol. */ | |
2956 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
2957 | h = elf_sym_hashes (abfd)[indx]; | |
2958 | BFD_ASSERT (h != NULL); | |
2959 | ||
2960 | if ( h->root.type != bfd_link_hash_defined | |
2961 | && h->root.type != bfd_link_hash_defweak) | |
2962 | /* This appears to be a reference to an undefined | |
2963 | symbol. Just ignore it--it will be caught by the | |
2964 | regular reloc processing. */ | |
2965 | continue; | |
2966 | ||
2967 | symval = (h->root.u.def.value | |
2968 | + h->root.u.def.section->output_section->vma | |
2969 | + h->root.u.def.section->output_offset); | |
2970 | #ifdef DEBUG_RELAX | |
2971 | fprintf (stderr, | |
2972 | "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n", | |
2973 | sec->name, h->root.root.string, h->root.u.def.value, | |
2974 | sec->output_section->vma, sec->output_offset, irel->r_addend); | |
2975 | #endif | |
2976 | } | |
2977 | ||
2978 | addend = irel->r_addend; | |
2979 | ||
2980 | foff = (symval + addend | |
2981 | - (irel->r_offset | |
2982 | + sec->output_section->vma | |
2983 | + sec->output_offset | |
2984 | + 4)); | |
2985 | #ifdef DEBUG_RELAX | |
2986 | fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n", | |
2987 | irel->r_offset, | |
2988 | (irel->r_offset | |
2989 | + sec->output_section->vma | |
2990 | + sec->output_offset), | |
2991 | symval, addend, foff); | |
2992 | #endif | |
2993 | if (foff < -0x100000 || foff >= 0x100000) | |
2994 | /* After all that work, we can't shorten this function call. */ | |
2995 | continue; | |
2996 | ||
2997 | /* For simplicity of coding, we are going to modify the section | |
2998 | contents, the section relocs, and the BFD symbol table. We | |
2999 | must tell the rest of the code not to free up this | |
3000 | information. It would be possible to instead create a table | |
3001 | of changes which have to be made, as is done in coff-mips.c; | |
3002 | that would be more work, but would require less memory when | |
3003 | the linker is run. */ | |
3004 | elf_section_data (sec)->relocs = internal_relocs; | |
86aba9db | 3005 | elf_section_data (sec)->this_hdr.contents = contents; |
5cec6941 | 3006 | symtab_hdr->contents = (bfd_byte *) isymbuf; |
86aba9db NC |
3007 | |
3008 | if (foff < -0x100 || foff >= 0x100) | |
3009 | { | |
3010 | /* Replace the long jump with a jr. */ | |
3011 | ||
3012 | irel->r_info = | |
b34976b6 AM |
3013 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL); |
3014 | ||
86aba9db NC |
3015 | irel->r_addend = addend; |
3016 | addend = 0; | |
3017 | ||
3018 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3019 | /* If this needs to be changed because of future relaxing, | |
3020 | it will be handled here like other internal IND12W | |
3021 | relocs. */ | |
3022 | bfd_put_32 (abfd, | |
3023 | 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf), | |
3024 | contents + irel->r_offset); | |
3025 | else | |
3026 | /* We can't fully resolve this yet, because the external | |
3027 | symbol value may be changed by future relaxing. | |
3028 | We let the final link phase handle it. */ | |
3029 | bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset); | |
3030 | ||
3031 | hi_irelfn->r_info = | |
3032 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); | |
3033 | lo_irelfn->r_info = | |
3034 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
3035 | if (!v850_elf_relax_delete_bytes (abfd, sec, | |
3036 | irel->r_offset + 4, toaddr, 6)) | |
3037 | goto error_return; | |
3038 | ||
3039 | align_pad_size += 6; | |
3040 | } | |
3041 | else | |
3042 | { | |
3043 | /* Replace the long jump with a br. */ | |
3044 | ||
3045 | irel->r_info = | |
3046 | ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL); | |
3047 | ||
3048 | irel->r_addend = addend; | |
3049 | addend = 0; | |
3050 | ||
3051 | if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info) | |
3052 | /* If this needs to be changed because of future relaxing, | |
3053 | it will be handled here like other internal IND12W | |
3054 | relocs. */ | |
3055 | bfd_put_16 (abfd, | |
3056 | 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070), | |
3057 | contents + irel->r_offset); | |
3058 | else | |
3059 | /* We can't fully resolve this yet, because the external | |
3060 | symbol value may be changed by future relaxing. | |
3061 | We let the final link phase handle it. */ | |
3062 | bfd_put_16 (abfd, 0x0585, contents + irel->r_offset); | |
3063 | ||
3064 | hi_irelfn->r_info = | |
3065 | ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE); | |
3066 | lo_irelfn->r_info = | |
3067 | ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE); | |
3068 | if (!v850_elf_relax_delete_bytes (abfd, sec, | |
3069 | irel->r_offset + 2, toaddr, 8)) | |
3070 | goto error_return; | |
3071 | ||
3072 | align_pad_size += 8; | |
3073 | } | |
3074 | } | |
3075 | } | |
3076 | ||
3077 | irelalign = NULL; | |
3078 | for (irel = internal_relocs; irel < irelend; irel++) | |
3079 | { | |
3080 | if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN | |
3081 | && irel->r_offset == toaddr) | |
3082 | { | |
3083 | irel->r_offset -= align_pad_size; | |
3084 | ||
3085 | if (irelalign == NULL || irelalign->r_addend > irel->r_addend) | |
3086 | irelalign = irel; | |
3087 | } | |
3088 | } | |
3089 | ||
3090 | addr = toaddr; | |
3091 | } | |
3092 | ||
3093 | if (!irelalign) | |
3094 | { | |
3095 | #ifdef DEBUG_RELAX | |
3096 | fprintf (stderr, "relax pad %d shorten %d -> %d\n", | |
3097 | align_pad_size, | |
eea6121a AM |
3098 | sec->size, |
3099 | sec->size - align_pad_size); | |
86aba9db | 3100 | #endif |
eea6121a | 3101 | sec->size -= align_pad_size; |
86aba9db NC |
3102 | } |
3103 | ||
5cec6941 NC |
3104 | finish: |
3105 | if (internal_relocs != NULL | |
3106 | && elf_section_data (sec)->relocs != internal_relocs) | |
3107 | free (internal_relocs); | |
86aba9db | 3108 | |
5cec6941 NC |
3109 | if (contents != NULL |
3110 | && elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents) | |
3111 | free (contents); | |
86aba9db | 3112 | |
5cec6941 NC |
3113 | if (isymbuf != NULL |
3114 | && symtab_hdr->contents != (bfd_byte *) isymbuf) | |
3115 | free (isymbuf); | |
86aba9db | 3116 | |
5cec6941 | 3117 | return result; |
86aba9db | 3118 | |
5cec6941 | 3119 | error_return: |
b34976b6 | 3120 | result = FALSE; |
5cec6941 | 3121 | goto finish; |
86aba9db | 3122 | } |
2f89ff8d L |
3123 | |
3124 | static struct bfd_elf_special_section const v850_elf_special_sections[]= | |
3125 | { | |
7dcb9820 AM |
3126 | { ".sdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE |
3127 | + SHF_V850_GPREL) }, | |
3128 | { ".rosdata", 8, -2, SHT_PROGBITS, (SHF_ALLOC | |
3129 | + SHF_V850_GPREL) }, | |
3130 | { ".sbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3131 | + SHF_V850_GPREL) }, | |
3132 | { ".scommon", 8, -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE | |
3133 | + SHF_V850_GPREL) }, | |
3134 | { ".tdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3135 | + SHF_V850_EPREL) }, | |
3136 | { ".tbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3137 | + SHF_V850_EPREL) }, | |
3138 | { ".tcommon", 8, -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE | |
3139 | + SHF_V850_R0REL) }, | |
3140 | { ".zdata", 6, -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3141 | + SHF_V850_R0REL) }, | |
3142 | { ".rozdata", 8, -2, SHT_PROGBITS, (SHF_ALLOC | |
3143 | + SHF_V850_R0REL) }, | |
3144 | { ".zbss", 5, -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE | |
3145 | + SHF_V850_R0REL) }, | |
3146 | { ".zcommon", 8, -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE | |
3147 | + SHF_V850_R0REL) }, | |
3148 | { ".call_table_data", 16, 0, SHT_PROGBITS, (SHF_ALLOC | |
3149 | + SHF_WRITE) }, | |
3150 | { ".call_table_text", 16, 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE | |
3151 | + SHF_EXECINSTR) }, | |
3152 | { NULL, 0, 0, 0, 0 } | |
2f89ff8d | 3153 | }; |
252b5132 RH |
3154 | \f |
3155 | #define TARGET_LITTLE_SYM bfd_elf32_v850_vec | |
3156 | #define TARGET_LITTLE_NAME "elf32-v850" | |
3157 | #define ELF_ARCH bfd_arch_v850 | |
aa4f99bb AO |
3158 | #define ELF_MACHINE_CODE EM_V850 |
3159 | #define ELF_MACHINE_ALT1 EM_CYGNUS_V850 | |
252b5132 | 3160 | #define ELF_MAXPAGESIZE 0x1000 |
435b1e90 | 3161 | |
252b5132 RH |
3162 | #define elf_info_to_howto v850_elf_info_to_howto_rela |
3163 | #define elf_info_to_howto_rel v850_elf_info_to_howto_rel | |
3164 | ||
3165 | #define elf_backend_check_relocs v850_elf_check_relocs | |
3166 | #define elf_backend_relocate_section v850_elf_relocate_section | |
3167 | #define elf_backend_object_p v850_elf_object_p | |
3168 | #define elf_backend_final_write_processing v850_elf_final_write_processing | |
3169 | #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section | |
3170 | #define elf_backend_symbol_processing v850_elf_symbol_processing | |
3171 | #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook | |
3172 | #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook | |
3173 | #define elf_backend_section_from_shdr v850_elf_section_from_shdr | |
3174 | #define elf_backend_fake_sections v850_elf_fake_sections | |
3175 | #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook | |
3176 | #define elf_backend_gc_sweep_hook v850_elf_gc_sweep_hook | |
2f89ff8d | 3177 | #define elf_backend_special_sections v850_elf_special_sections |
252b5132 RH |
3178 | |
3179 | #define elf_backend_can_gc_sections 1 | |
f0fe0e16 | 3180 | #define elf_backend_rela_normal 1 |
252b5132 | 3181 | |
252b5132 RH |
3182 | #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name |
3183 | #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup | |
252b5132 RH |
3184 | #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data |
3185 | #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags | |
3186 | #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data | |
86aba9db | 3187 | #define bfd_elf32_bfd_relax_section v850_elf_relax_section |
252b5132 RH |
3188 | |
3189 | #define elf_symbol_leading_char '_' | |
3190 | ||
3191 | #include "elf32-target.h" |