]>
Commit | Line | Data |
---|---|---|
7ba29e2a NC |
1 | /* Xilinx MicroBlaze-specific support for 32-bit ELF |
2 | ||
d87bef3a | 3 | Copyright (C) 2009-2023 Free Software Foundation, Inc. |
7ba29e2a NC |
4 | |
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
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 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the | |
19 | Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
20 | Boston, MA 02110-1301, USA. */ | |
21 | ||
22 | ||
7ba29e2a | 23 | #include "sysdep.h" |
691bf19c | 24 | #include "bfd.h" |
7ba29e2a NC |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "elf-bfd.h" | |
28 | #include "elf/microblaze.h" | |
29 | #include <assert.h> | |
30 | ||
31 | #define USE_RELA /* Only USE_REL is actually significant, but this is | |
32 | here are a reminder... */ | |
33 | #define INST_WORD_SIZE 4 | |
34 | ||
35 | static int ro_small_data_pointer = 0; | |
36 | static int rw_small_data_pointer = 0; | |
37 | ||
38 | static reloc_howto_type * microblaze_elf_howto_table [(int) R_MICROBLAZE_max]; | |
39 | ||
40 | static reloc_howto_type microblaze_elf_howto_raw[] = | |
41 | { | |
42 | /* This reloc does nothing. */ | |
43 | HOWTO (R_MICROBLAZE_NONE, /* Type. */ | |
07d6d2b8 | 44 | 0, /* Rightshift. */ |
c94cb026 | 45 | 0, /* Size. */ |
07d6d2b8 | 46 | 0, /* Bitsize. */ |
0a1b45a2 | 47 | false, /* PC_relative. */ |
07d6d2b8 AM |
48 | 0, /* Bitpos. */ |
49 | complain_overflow_dont, /* Complain on overflow. */ | |
50 | NULL, /* Special Function. */ | |
51 | "R_MICROBLAZE_NONE", /* Name. */ | |
0a1b45a2 | 52 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
53 | 0, /* Source Mask. */ |
54 | 0, /* Dest Mask. */ | |
0a1b45a2 | 55 | false), /* PC relative offset? */ |
7ba29e2a NC |
56 | |
57 | /* A standard 32 bit relocation. */ | |
07d6d2b8 AM |
58 | HOWTO (R_MICROBLAZE_32, /* Type. */ |
59 | 0, /* Rightshift. */ | |
c94cb026 | 60 | 4, /* Size. */ |
07d6d2b8 | 61 | 32, /* Bitsize. */ |
0a1b45a2 | 62 | false, /* PC_relative. */ |
07d6d2b8 AM |
63 | 0, /* Bitpos. */ |
64 | complain_overflow_bitfield, /* Complain on overflow. */ | |
65 | bfd_elf_generic_reloc,/* Special Function. */ | |
66 | "R_MICROBLAZE_32", /* Name. */ | |
0a1b45a2 | 67 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
68 | 0, /* Source Mask. */ |
69 | 0xffffffff, /* Dest Mask. */ | |
0a1b45a2 | 70 | false), /* PC relative offset? */ |
7ba29e2a NC |
71 | |
72 | /* A standard PCREL 32 bit relocation. */ | |
73 | HOWTO (R_MICROBLAZE_32_PCREL,/* Type. */ | |
07d6d2b8 | 74 | 0, /* Rightshift. */ |
c94cb026 | 75 | 4, /* Size. */ |
07d6d2b8 | 76 | 32, /* Bitsize. */ |
0a1b45a2 | 77 | true, /* PC_relative. */ |
07d6d2b8 AM |
78 | 0, /* Bitpos. */ |
79 | complain_overflow_bitfield, /* Complain on overflow. */ | |
80 | bfd_elf_generic_reloc,/* Special Function. */ | |
81 | "R_MICROBLAZE_32_PCREL", /* Name. */ | |
0a1b45a2 | 82 | true, /* Partial Inplace. */ |
07d6d2b8 AM |
83 | 0, /* Source Mask. */ |
84 | 0xffffffff, /* Dest Mask. */ | |
0a1b45a2 | 85 | true), /* PC relative offset? */ |
7ba29e2a NC |
86 | |
87 | /* A 64 bit PCREL relocation. Table-entry not really used. */ | |
88 | HOWTO (R_MICROBLAZE_64_PCREL,/* Type. */ | |
07d6d2b8 | 89 | 0, /* Rightshift. */ |
c94cb026 | 90 | 4, /* Size. */ |
07d6d2b8 | 91 | 16, /* Bitsize. */ |
0a1b45a2 | 92 | true, /* PC_relative. */ |
07d6d2b8 AM |
93 | 0, /* Bitpos. */ |
94 | complain_overflow_dont, /* Complain on overflow. */ | |
95 | bfd_elf_generic_reloc,/* Special Function. */ | |
96 | "R_MICROBLAZE_64_PCREL", /* Name. */ | |
0a1b45a2 | 97 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
98 | 0, /* Source Mask. */ |
99 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 100 | true), /* PC relative offset? */ |
7ba29e2a NC |
101 | |
102 | /* The low half of a PCREL 32 bit relocation. */ | |
07d6d2b8 AM |
103 | HOWTO (R_MICROBLAZE_32_PCREL_LO, /* Type. */ |
104 | 0, /* Rightshift. */ | |
c94cb026 | 105 | 4, /* Size. */ |
07d6d2b8 | 106 | 16, /* Bitsize. */ |
0a1b45a2 | 107 | true, /* PC_relative. */ |
07d6d2b8 AM |
108 | 0, /* Bitpos. */ |
109 | complain_overflow_signed, /* Complain on overflow. */ | |
110 | bfd_elf_generic_reloc, /* Special Function. */ | |
111 | "R_MICROBLAZE_32_PCREL_LO", /* Name. */ | |
0a1b45a2 | 112 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
113 | 0, /* Source Mask. */ |
114 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 115 | true), /* PC relative offset? */ |
7ba29e2a NC |
116 | |
117 | /* A 64 bit relocation. Table entry not really used. */ | |
07d6d2b8 AM |
118 | HOWTO (R_MICROBLAZE_64, /* Type. */ |
119 | 0, /* Rightshift. */ | |
c94cb026 | 120 | 4, /* Size. */ |
07d6d2b8 | 121 | 16, /* Bitsize. */ |
0a1b45a2 | 122 | false, /* PC_relative. */ |
07d6d2b8 AM |
123 | 0, /* Bitpos. */ |
124 | complain_overflow_dont, /* Complain on overflow. */ | |
125 | bfd_elf_generic_reloc,/* Special Function. */ | |
126 | "R_MICROBLAZE_64", /* Name. */ | |
0a1b45a2 | 127 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
128 | 0, /* Source Mask. */ |
129 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 130 | false), /* PC relative offset? */ |
7ba29e2a NC |
131 | |
132 | /* The low half of a 32 bit relocation. */ | |
07d6d2b8 AM |
133 | HOWTO (R_MICROBLAZE_32_LO, /* Type. */ |
134 | 0, /* Rightshift. */ | |
c94cb026 | 135 | 4, /* Size. */ |
07d6d2b8 | 136 | 16, /* Bitsize. */ |
0a1b45a2 | 137 | false, /* PC_relative. */ |
07d6d2b8 AM |
138 | 0, /* Bitpos. */ |
139 | complain_overflow_signed, /* Complain on overflow. */ | |
140 | bfd_elf_generic_reloc,/* Special Function. */ | |
141 | "R_MICROBLAZE_32_LO", /* Name. */ | |
0a1b45a2 | 142 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
143 | 0, /* Source Mask. */ |
144 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 145 | false), /* PC relative offset? */ |
7ba29e2a NC |
146 | |
147 | /* Read-only small data section relocation. */ | |
07d6d2b8 AM |
148 | HOWTO (R_MICROBLAZE_SRO32, /* Type. */ |
149 | 0, /* Rightshift. */ | |
c94cb026 | 150 | 4, /* Size. */ |
07d6d2b8 | 151 | 16, /* Bitsize. */ |
0a1b45a2 | 152 | false, /* PC_relative. */ |
07d6d2b8 AM |
153 | 0, /* Bitpos. */ |
154 | complain_overflow_bitfield, /* Complain on overflow. */ | |
155 | bfd_elf_generic_reloc,/* Special Function. */ | |
156 | "R_MICROBLAZE_SRO32", /* Name. */ | |
0a1b45a2 | 157 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
158 | 0, /* Source Mask. */ |
159 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 160 | false), /* PC relative offset? */ |
7ba29e2a NC |
161 | |
162 | /* Read-write small data area relocation. */ | |
07d6d2b8 AM |
163 | HOWTO (R_MICROBLAZE_SRW32, /* Type. */ |
164 | 0, /* Rightshift. */ | |
c94cb026 | 165 | 4, /* Size. */ |
07d6d2b8 | 166 | 16, /* Bitsize. */ |
0a1b45a2 | 167 | false, /* PC_relative. */ |
07d6d2b8 AM |
168 | 0, /* Bitpos. */ |
169 | complain_overflow_bitfield, /* Complain on overflow. */ | |
170 | bfd_elf_generic_reloc,/* Special Function. */ | |
171 | "R_MICROBLAZE_SRW32", /* Name. */ | |
0a1b45a2 | 172 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
173 | 0, /* Source Mask. */ |
174 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 175 | false), /* PC relative offset? */ |
07d6d2b8 AM |
176 | |
177 | /* This reloc does nothing. Used for relaxation. */ | |
7ba29e2a | 178 | HOWTO (R_MICROBLAZE_64_NONE, /* Type. */ |
07d6d2b8 | 179 | 0, /* Rightshift. */ |
c94cb026 | 180 | 0, /* Size. */ |
07d6d2b8 | 181 | 0, /* Bitsize. */ |
0a1b45a2 | 182 | true, /* PC_relative. */ |
07d6d2b8 AM |
183 | 0, /* Bitpos. */ |
184 | complain_overflow_dont, /* Complain on overflow. */ | |
185 | NULL, /* Special Function. */ | |
186 | "R_MICROBLAZE_64_NONE",/* Name. */ | |
0a1b45a2 | 187 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
188 | 0, /* Source Mask. */ |
189 | 0, /* Dest Mask. */ | |
0a1b45a2 | 190 | false), /* PC relative offset? */ |
7ba29e2a NC |
191 | |
192 | /* Symbol Op Symbol relocation. */ | |
07d6d2b8 AM |
193 | HOWTO (R_MICROBLAZE_32_SYM_OP_SYM, /* Type. */ |
194 | 0, /* Rightshift. */ | |
c94cb026 | 195 | 4, /* Size. */ |
07d6d2b8 | 196 | 32, /* Bitsize. */ |
0a1b45a2 | 197 | false, /* PC_relative. */ |
07d6d2b8 AM |
198 | 0, /* Bitpos. */ |
199 | complain_overflow_bitfield, /* Complain on overflow. */ | |
200 | bfd_elf_generic_reloc,/* Special Function. */ | |
201 | "R_MICROBLAZE_32_SYM_OP_SYM", /* Name. */ | |
0a1b45a2 | 202 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
203 | 0, /* Source Mask. */ |
204 | 0xffffffff, /* Dest Mask. */ | |
0a1b45a2 | 205 | false), /* PC relative offset? */ |
7ba29e2a NC |
206 | |
207 | /* GNU extension to record C++ vtable hierarchy. */ | |
208 | HOWTO (R_MICROBLAZE_GNU_VTINHERIT, /* Type. */ | |
07d6d2b8 | 209 | 0, /* Rightshift. */ |
c94cb026 | 210 | 4, /* Size. */ |
07d6d2b8 | 211 | 0, /* Bitsize. */ |
0a1b45a2 | 212 | false, /* PC_relative. */ |
07d6d2b8 AM |
213 | 0, /* Bitpos. */ |
214 | complain_overflow_dont,/* Complain on overflow. */ | |
215 | NULL, /* Special Function. */ | |
216 | "R_MICROBLAZE_GNU_VTINHERIT", /* Name. */ | |
0a1b45a2 | 217 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
218 | 0, /* Source Mask. */ |
219 | 0, /* Dest Mask. */ | |
0a1b45a2 | 220 | false), /* PC relative offset? */ |
7ba29e2a NC |
221 | |
222 | /* GNU extension to record C++ vtable member usage. */ | |
223 | HOWTO (R_MICROBLAZE_GNU_VTENTRY, /* Type. */ | |
07d6d2b8 | 224 | 0, /* Rightshift. */ |
c94cb026 | 225 | 4, /* Size. */ |
07d6d2b8 | 226 | 0, /* Bitsize. */ |
0a1b45a2 | 227 | false, /* PC_relative. */ |
07d6d2b8 AM |
228 | 0, /* Bitpos. */ |
229 | complain_overflow_dont,/* Complain on overflow. */ | |
230 | _bfd_elf_rel_vtable_reloc_fn, /* Special Function. */ | |
231 | "R_MICROBLAZE_GNU_VTENTRY", /* Name. */ | |
0a1b45a2 | 232 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
233 | 0, /* Source Mask. */ |
234 | 0, /* Dest Mask. */ | |
0a1b45a2 | 235 | false), /* PC relative offset? */ |
7ba29e2a NC |
236 | |
237 | /* A 64 bit GOTPC relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
238 | HOWTO (R_MICROBLAZE_GOTPC_64, /* Type. */ |
239 | 0, /* Rightshift. */ | |
c94cb026 | 240 | 4, /* Size. */ |
07d6d2b8 | 241 | 16, /* Bitsize. */ |
0a1b45a2 | 242 | true, /* PC_relative. */ |
07d6d2b8 AM |
243 | 0, /* Bitpos. */ |
244 | complain_overflow_dont, /* Complain on overflow. */ | |
245 | bfd_elf_generic_reloc, /* Special Function. */ | |
246 | "R_MICROBLAZE_GOTPC_64", /* Name. */ | |
0a1b45a2 | 247 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
248 | 0, /* Source Mask. */ |
249 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 250 | true), /* PC relative offset? */ |
7ba29e2a | 251 | |
3f0a5f17 | 252 | /* A 64 bit TEXTPCREL relocation. Table-entry not really used. */ |
4b24dd1a | 253 | HOWTO (R_MICROBLAZE_TEXTPCREL_64, /* Type. */ |
3f0a5f17 | 254 | 0, /* Rightshift. */ |
c94cb026 | 255 | 4, /* Size. */ |
3f0a5f17 | 256 | 16, /* Bitsize. */ |
0a1b45a2 | 257 | true, /* PC_relative. */ |
3f0a5f17 ME |
258 | 0, /* Bitpos. */ |
259 | complain_overflow_dont, /* Complain on overflow. */ | |
260 | bfd_elf_generic_reloc, /* Special Function. */ | |
4b24dd1a | 261 | "R_MICROBLAZE_TEXTPCREL_64", /* Name. */ |
0a1b45a2 | 262 | false, /* Partial Inplace. */ |
3f0a5f17 ME |
263 | 0, /* Source Mask. */ |
264 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 265 | true), /* PC relative offset? */ |
3f0a5f17 | 266 | |
7ba29e2a NC |
267 | /* A 64 bit GOT relocation. Table-entry not really used. */ |
268 | HOWTO (R_MICROBLAZE_GOT_64, /* Type. */ | |
07d6d2b8 | 269 | 0, /* Rightshift. */ |
c94cb026 | 270 | 4, /* Size. */ |
07d6d2b8 | 271 | 16, /* Bitsize. */ |
0a1b45a2 | 272 | false, /* PC_relative. */ |
07d6d2b8 AM |
273 | 0, /* Bitpos. */ |
274 | complain_overflow_dont, /* Complain on overflow. */ | |
275 | bfd_elf_generic_reloc,/* Special Function. */ | |
276 | "R_MICROBLAZE_GOT_64",/* Name. */ | |
0a1b45a2 | 277 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
278 | 0, /* Source Mask. */ |
279 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 280 | false), /* PC relative offset? */ |
7ba29e2a | 281 | |
3f0a5f17 ME |
282 | /* A 64 bit TEXTREL relocation. Table-entry not really used. */ |
283 | HOWTO (R_MICROBLAZE_TEXTREL_64, /* Type. */ | |
284 | 0, /* Rightshift. */ | |
c94cb026 | 285 | 4, /* Size. */ |
3f0a5f17 | 286 | 16, /* Bitsize. */ |
0a1b45a2 | 287 | false, /* PC_relative. */ |
3f0a5f17 ME |
288 | 0, /* Bitpos. */ |
289 | complain_overflow_dont, /* Complain on overflow. */ | |
290 | bfd_elf_generic_reloc,/* Special Function. */ | |
291 | "R_MICROBLAZE_TEXTREL_64",/* Name. */ | |
0a1b45a2 | 292 | false, /* Partial Inplace. */ |
3f0a5f17 ME |
293 | 0, /* Source Mask. */ |
294 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 295 | false), /* PC relative offset? */ |
3f0a5f17 | 296 | |
7ba29e2a NC |
297 | /* A 64 bit PLT relocation. Table-entry not really used. */ |
298 | HOWTO (R_MICROBLAZE_PLT_64, /* Type. */ | |
07d6d2b8 | 299 | 0, /* Rightshift. */ |
c94cb026 | 300 | 4, /* Size. */ |
07d6d2b8 | 301 | 16, /* Bitsize. */ |
0a1b45a2 | 302 | true, /* PC_relative. */ |
07d6d2b8 AM |
303 | 0, /* Bitpos. */ |
304 | complain_overflow_dont, /* Complain on overflow. */ | |
305 | bfd_elf_generic_reloc,/* Special Function. */ | |
306 | "R_MICROBLAZE_PLT_64",/* Name. */ | |
0a1b45a2 | 307 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
308 | 0, /* Source Mask. */ |
309 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 310 | true), /* PC relative offset? */ |
7ba29e2a NC |
311 | |
312 | /* Table-entry not really used. */ | |
07d6d2b8 AM |
313 | HOWTO (R_MICROBLAZE_REL, /* Type. */ |
314 | 0, /* Rightshift. */ | |
c94cb026 | 315 | 4, /* Size. */ |
07d6d2b8 | 316 | 16, /* Bitsize. */ |
0a1b45a2 | 317 | true, /* PC_relative. */ |
07d6d2b8 AM |
318 | 0, /* Bitpos. */ |
319 | complain_overflow_dont, /* Complain on overflow. */ | |
320 | bfd_elf_generic_reloc,/* Special Function. */ | |
321 | "R_MICROBLAZE_REL", /* Name. */ | |
0a1b45a2 | 322 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
323 | 0, /* Source Mask. */ |
324 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 325 | true), /* PC relative offset? */ |
7ba29e2a NC |
326 | |
327 | /* Table-entry not really used. */ | |
328 | HOWTO (R_MICROBLAZE_JUMP_SLOT,/* Type. */ | |
07d6d2b8 | 329 | 0, /* Rightshift. */ |
c94cb026 | 330 | 4, /* Size. */ |
07d6d2b8 | 331 | 16, /* Bitsize. */ |
0a1b45a2 | 332 | true, /* PC_relative. */ |
07d6d2b8 AM |
333 | 0, /* Bitpos. */ |
334 | complain_overflow_dont, /* Complain on overflow. */ | |
335 | bfd_elf_generic_reloc,/* Special Function. */ | |
336 | "R_MICROBLAZE_JUMP_SLOT", /* Name. */ | |
0a1b45a2 | 337 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
338 | 0, /* Source Mask. */ |
339 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 340 | true), /* PC relative offset? */ |
7ba29e2a NC |
341 | |
342 | /* Table-entry not really used. */ | |
343 | HOWTO (R_MICROBLAZE_GLOB_DAT,/* Type. */ | |
07d6d2b8 | 344 | 0, /* Rightshift. */ |
c94cb026 | 345 | 4, /* Size. */ |
07d6d2b8 | 346 | 16, /* Bitsize. */ |
0a1b45a2 | 347 | true, /* PC_relative. */ |
07d6d2b8 AM |
348 | 0, /* Bitpos. */ |
349 | complain_overflow_dont, /* Complain on overflow. */ | |
350 | bfd_elf_generic_reloc,/* Special Function. */ | |
351 | "R_MICROBLAZE_GLOB_DAT", /* Name. */ | |
0a1b45a2 | 352 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
353 | 0, /* Source Mask. */ |
354 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 355 | true), /* PC relative offset? */ |
7ba29e2a NC |
356 | |
357 | /* A 64 bit GOT relative relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
358 | HOWTO (R_MICROBLAZE_GOTOFF_64, /* Type. */ |
359 | 0, /* Rightshift. */ | |
c94cb026 | 360 | 4, /* Size. */ |
07d6d2b8 | 361 | 16, /* Bitsize. */ |
0a1b45a2 | 362 | false, /* PC_relative. */ |
07d6d2b8 AM |
363 | 0, /* Bitpos. */ |
364 | complain_overflow_dont, /* Complain on overflow. */ | |
365 | bfd_elf_generic_reloc,/* Special Function. */ | |
366 | "R_MICROBLAZE_GOTOFF_64", /* Name. */ | |
0a1b45a2 | 367 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
368 | 0, /* Source Mask. */ |
369 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 370 | false), /* PC relative offset? */ |
7ba29e2a NC |
371 | |
372 | /* A 32 bit GOT relative relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
373 | HOWTO (R_MICROBLAZE_GOTOFF_32, /* Type. */ |
374 | 0, /* Rightshift. */ | |
c94cb026 | 375 | 4, /* Size. */ |
07d6d2b8 | 376 | 16, /* Bitsize. */ |
0a1b45a2 | 377 | false, /* PC_relative. */ |
07d6d2b8 AM |
378 | 0, /* Bitpos. */ |
379 | complain_overflow_dont, /* Complain on overflow. */ | |
380 | bfd_elf_generic_reloc, /* Special Function. */ | |
381 | "R_MICROBLAZE_GOTOFF_32", /* Name. */ | |
0a1b45a2 | 382 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
383 | 0, /* Source Mask. */ |
384 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 385 | false), /* PC relative offset? */ |
7ba29e2a NC |
386 | |
387 | /* COPY relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
388 | HOWTO (R_MICROBLAZE_COPY, /* Type. */ |
389 | 0, /* Rightshift. */ | |
c94cb026 | 390 | 4, /* Size. */ |
07d6d2b8 | 391 | 16, /* Bitsize. */ |
0a1b45a2 | 392 | false, /* PC_relative. */ |
07d6d2b8 AM |
393 | 0, /* Bitpos. */ |
394 | complain_overflow_dont, /* Complain on overflow. */ | |
395 | bfd_elf_generic_reloc,/* Special Function. */ | |
396 | "R_MICROBLAZE_COPY", /* Name. */ | |
0a1b45a2 | 397 | false, /* Partial Inplace. */ |
07d6d2b8 AM |
398 | 0, /* Source Mask. */ |
399 | 0x0000ffff, /* Dest Mask. */ | |
0a1b45a2 | 400 | false), /* PC relative offset? */ |
69b06cc8 ME |
401 | |
402 | /* Marker relocs for TLS. */ | |
403 | HOWTO (R_MICROBLAZE_TLS, | |
404 | 0, /* rightshift */ | |
c94cb026 | 405 | 4, /* size */ |
69b06cc8 | 406 | 32, /* bitsize */ |
0a1b45a2 | 407 | false, /* pc_relative */ |
69b06cc8 ME |
408 | 0, /* bitpos */ |
409 | complain_overflow_dont, /* complain_on_overflow */ | |
410 | bfd_elf_generic_reloc, /* special_function */ | |
411 | "R_MICROBLAZE_TLS", /* name */ | |
0a1b45a2 | 412 | false, /* partial_inplace */ |
69b06cc8 ME |
413 | 0, /* src_mask */ |
414 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 415 | false), /* pcrel_offset */ |
69b06cc8 ME |
416 | |
417 | HOWTO (R_MICROBLAZE_TLSGD, | |
418 | 0, /* rightshift */ | |
c94cb026 | 419 | 4, /* size */ |
69b06cc8 | 420 | 32, /* bitsize */ |
0a1b45a2 | 421 | false, /* pc_relative */ |
69b06cc8 ME |
422 | 0, /* bitpos */ |
423 | complain_overflow_dont, /* complain_on_overflow */ | |
424 | bfd_elf_generic_reloc, /* special_function */ | |
425 | "R_MICROBLAZE_TLSGD", /* name */ | |
0a1b45a2 | 426 | false, /* partial_inplace */ |
69b06cc8 ME |
427 | 0, /* src_mask */ |
428 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 429 | false), /* pcrel_offset */ |
69b06cc8 ME |
430 | |
431 | HOWTO (R_MICROBLAZE_TLSLD, | |
432 | 0, /* rightshift */ | |
c94cb026 | 433 | 4, /* size */ |
69b06cc8 | 434 | 32, /* bitsize */ |
0a1b45a2 | 435 | false, /* pc_relative */ |
69b06cc8 ME |
436 | 0, /* bitpos */ |
437 | complain_overflow_dont, /* complain_on_overflow */ | |
438 | bfd_elf_generic_reloc, /* special_function */ | |
439 | "R_MICROBLAZE_TLSLD", /* name */ | |
0a1b45a2 | 440 | false, /* partial_inplace */ |
69b06cc8 ME |
441 | 0, /* src_mask */ |
442 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 443 | false), /* pcrel_offset */ |
69b06cc8 ME |
444 | |
445 | /* Computes the load module index of the load module that contains the | |
446 | definition of its TLS sym. */ | |
447 | HOWTO (R_MICROBLAZE_TLSDTPMOD32, | |
448 | 0, /* rightshift */ | |
c94cb026 | 449 | 4, /* size */ |
69b06cc8 | 450 | 32, /* bitsize */ |
0a1b45a2 | 451 | false, /* pc_relative */ |
69b06cc8 ME |
452 | 0, /* bitpos */ |
453 | complain_overflow_dont, /* complain_on_overflow */ | |
454 | bfd_elf_generic_reloc, /* special_function */ | |
455 | "R_MICROBLAZE_TLSDTPMOD32", /* name */ | |
0a1b45a2 | 456 | false, /* partial_inplace */ |
69b06cc8 ME |
457 | 0, /* src_mask */ |
458 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 459 | false), /* pcrel_offset */ |
69b06cc8 ME |
460 | |
461 | /* Computes a dtv-relative displacement, the difference between the value | |
462 | of sym+add and the base address of the thread-local storage block that | |
463 | contains the definition of sym, minus 0x8000. Used for initializing GOT */ | |
464 | HOWTO (R_MICROBLAZE_TLSDTPREL32, | |
465 | 0, /* rightshift */ | |
c94cb026 | 466 | 4, /* size */ |
69b06cc8 | 467 | 32, /* bitsize */ |
0a1b45a2 | 468 | false, /* pc_relative */ |
69b06cc8 ME |
469 | 0, /* bitpos */ |
470 | complain_overflow_dont, /* complain_on_overflow */ | |
471 | bfd_elf_generic_reloc, /* special_function */ | |
472 | "R_MICROBLAZE_TLSDTPREL32", /* name */ | |
0a1b45a2 | 473 | false, /* partial_inplace */ |
69b06cc8 ME |
474 | 0, /* src_mask */ |
475 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 476 | false), /* pcrel_offset */ |
69b06cc8 ME |
477 | |
478 | /* Computes a dtv-relative displacement, the difference between the value | |
479 | of sym+add and the base address of the thread-local storage block that | |
480 | contains the definition of sym, minus 0x8000. */ | |
481 | HOWTO (R_MICROBLAZE_TLSDTPREL64, | |
482 | 0, /* rightshift */ | |
c94cb026 | 483 | 4, /* size */ |
69b06cc8 | 484 | 32, /* bitsize */ |
0a1b45a2 | 485 | false, /* pc_relative */ |
69b06cc8 ME |
486 | 0, /* bitpos */ |
487 | complain_overflow_dont, /* complain_on_overflow */ | |
488 | bfd_elf_generic_reloc, /* special_function */ | |
489 | "R_MICROBLAZE_TLSDTPREL64", /* name */ | |
0a1b45a2 | 490 | false, /* partial_inplace */ |
69b06cc8 ME |
491 | 0, /* src_mask */ |
492 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 493 | false), /* pcrel_offset */ |
69b06cc8 ME |
494 | |
495 | /* Computes a tp-relative displacement, the difference between the value of | |
496 | sym+add and the value of the thread pointer (r13). */ | |
497 | HOWTO (R_MICROBLAZE_TLSGOTTPREL32, | |
498 | 0, /* rightshift */ | |
c94cb026 | 499 | 4, /* size */ |
69b06cc8 | 500 | 32, /* bitsize */ |
0a1b45a2 | 501 | false, /* pc_relative */ |
69b06cc8 ME |
502 | 0, /* bitpos */ |
503 | complain_overflow_dont, /* complain_on_overflow */ | |
504 | bfd_elf_generic_reloc, /* special_function */ | |
505 | "R_MICROBLAZE_TLSGOTTPREL32", /* name */ | |
0a1b45a2 | 506 | false, /* partial_inplace */ |
69b06cc8 ME |
507 | 0, /* src_mask */ |
508 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 509 | false), /* pcrel_offset */ |
69b06cc8 ME |
510 | |
511 | /* Computes a tp-relative displacement, the difference between the value of | |
512 | sym+add and the value of the thread pointer (r13). */ | |
513 | HOWTO (R_MICROBLAZE_TLSTPREL32, | |
514 | 0, /* rightshift */ | |
c94cb026 | 515 | 4, /* size */ |
69b06cc8 | 516 | 32, /* bitsize */ |
0a1b45a2 | 517 | false, /* pc_relative */ |
69b06cc8 ME |
518 | 0, /* bitpos */ |
519 | complain_overflow_dont, /* complain_on_overflow */ | |
520 | bfd_elf_generic_reloc, /* special_function */ | |
521 | "R_MICROBLAZE_TLSTPREL32", /* name */ | |
0a1b45a2 | 522 | false, /* partial_inplace */ |
69b06cc8 ME |
523 | 0, /* src_mask */ |
524 | 0x0000ffff, /* dst_mask */ | |
0a1b45a2 | 525 | false), /* pcrel_offset */ |
69b06cc8 | 526 | |
7ba29e2a NC |
527 | }; |
528 | ||
529 | #ifndef NUM_ELEM | |
530 | #define NUM_ELEM(a) (sizeof (a) / sizeof (a)[0]) | |
531 | #endif | |
532 | \f | |
533 | /* Initialize the microblaze_elf_howto_table, so that linear accesses can be done. */ | |
534 | ||
535 | static void | |
536 | microblaze_elf_howto_init (void) | |
537 | { | |
538 | unsigned int i; | |
539 | ||
540 | for (i = NUM_ELEM (microblaze_elf_howto_raw); i--;) | |
541 | { | |
542 | unsigned int type; | |
543 | ||
544 | type = microblaze_elf_howto_raw[i].type; | |
545 | ||
546 | BFD_ASSERT (type < NUM_ELEM (microblaze_elf_howto_table)); | |
547 | ||
548 | microblaze_elf_howto_table [type] = & microblaze_elf_howto_raw [i]; | |
549 | } | |
550 | } | |
551 | \f | |
552 | static reloc_howto_type * | |
553 | microblaze_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
554 | bfd_reloc_code_real_type code) | |
555 | { | |
556 | enum elf_microblaze_reloc_type microblaze_reloc = R_MICROBLAZE_NONE; | |
557 | ||
558 | switch (code) | |
559 | { | |
560 | case BFD_RELOC_NONE: | |
561 | microblaze_reloc = R_MICROBLAZE_NONE; | |
562 | break; | |
563 | case BFD_RELOC_MICROBLAZE_64_NONE: | |
564 | microblaze_reloc = R_MICROBLAZE_64_NONE; | |
565 | break; | |
566 | case BFD_RELOC_32: | |
567 | microblaze_reloc = R_MICROBLAZE_32; | |
568 | break; | |
569 | /* RVA is treated the same as 32 */ | |
570 | case BFD_RELOC_RVA: | |
571 | microblaze_reloc = R_MICROBLAZE_32; | |
572 | break; | |
573 | case BFD_RELOC_32_PCREL: | |
574 | microblaze_reloc = R_MICROBLAZE_32_PCREL; | |
575 | break; | |
576 | case BFD_RELOC_64_PCREL: | |
577 | microblaze_reloc = R_MICROBLAZE_64_PCREL; | |
578 | break; | |
579 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
580 | microblaze_reloc = R_MICROBLAZE_32_PCREL_LO; | |
581 | break; | |
582 | case BFD_RELOC_64: | |
583 | microblaze_reloc = R_MICROBLAZE_64; | |
584 | break; | |
585 | case BFD_RELOC_MICROBLAZE_32_LO: | |
586 | microblaze_reloc = R_MICROBLAZE_32_LO; | |
587 | break; | |
588 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
589 | microblaze_reloc = R_MICROBLAZE_SRO32; | |
590 | break; | |
591 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
592 | microblaze_reloc = R_MICROBLAZE_SRW32; | |
593 | break; | |
594 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
595 | microblaze_reloc = R_MICROBLAZE_32_SYM_OP_SYM; | |
596 | break; | |
597 | case BFD_RELOC_VTABLE_INHERIT: | |
598 | microblaze_reloc = R_MICROBLAZE_GNU_VTINHERIT; | |
599 | break; | |
600 | case BFD_RELOC_VTABLE_ENTRY: | |
601 | microblaze_reloc = R_MICROBLAZE_GNU_VTENTRY; | |
602 | break; | |
603 | case BFD_RELOC_MICROBLAZE_64_GOTPC: | |
604 | microblaze_reloc = R_MICROBLAZE_GOTPC_64; | |
605 | break; | |
606 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
607 | microblaze_reloc = R_MICROBLAZE_GOT_64; | |
608 | break; | |
3f0a5f17 ME |
609 | case BFD_RELOC_MICROBLAZE_64_TEXTPCREL: |
610 | microblaze_reloc = R_MICROBLAZE_TEXTPCREL_64; | |
611 | break; | |
612 | case BFD_RELOC_MICROBLAZE_64_TEXTREL: | |
613 | microblaze_reloc = R_MICROBLAZE_TEXTREL_64; | |
614 | break; | |
7ba29e2a NC |
615 | case BFD_RELOC_MICROBLAZE_64_PLT: |
616 | microblaze_reloc = R_MICROBLAZE_PLT_64; | |
617 | break; | |
618 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
619 | microblaze_reloc = R_MICROBLAZE_GOTOFF_64; | |
620 | break; | |
621 | case BFD_RELOC_MICROBLAZE_32_GOTOFF: | |
622 | microblaze_reloc = R_MICROBLAZE_GOTOFF_32; | |
623 | break; | |
69b06cc8 ME |
624 | case BFD_RELOC_MICROBLAZE_64_TLSGD: |
625 | microblaze_reloc = R_MICROBLAZE_TLSGD; | |
626 | break; | |
627 | case BFD_RELOC_MICROBLAZE_64_TLSLD: | |
628 | microblaze_reloc = R_MICROBLAZE_TLSLD; | |
629 | break; | |
630 | case BFD_RELOC_MICROBLAZE_32_TLSDTPREL: | |
631 | microblaze_reloc = R_MICROBLAZE_TLSDTPREL32; | |
632 | break; | |
633 | case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: | |
634 | microblaze_reloc = R_MICROBLAZE_TLSDTPREL64; | |
635 | break; | |
636 | case BFD_RELOC_MICROBLAZE_32_TLSDTPMOD: | |
637 | microblaze_reloc = R_MICROBLAZE_TLSDTPMOD32; | |
638 | break; | |
639 | case BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL: | |
640 | microblaze_reloc = R_MICROBLAZE_TLSGOTTPREL32; | |
641 | break; | |
642 | case BFD_RELOC_MICROBLAZE_64_TLSTPREL: | |
643 | microblaze_reloc = R_MICROBLAZE_TLSTPREL32; | |
644 | break; | |
7ba29e2a NC |
645 | case BFD_RELOC_MICROBLAZE_COPY: |
646 | microblaze_reloc = R_MICROBLAZE_COPY; | |
647 | break; | |
648 | default: | |
649 | return (reloc_howto_type *) NULL; | |
650 | } | |
651 | ||
652 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) | |
653 | /* Initialize howto table if needed. */ | |
654 | microblaze_elf_howto_init (); | |
655 | ||
656 | return microblaze_elf_howto_table [(int) microblaze_reloc]; | |
657 | }; | |
658 | ||
659 | static reloc_howto_type * | |
660 | microblaze_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
661 | const char *r_name) | |
662 | { | |
663 | unsigned int i; | |
664 | ||
665 | for (i = 0; i < NUM_ELEM (microblaze_elf_howto_raw); i++) | |
666 | if (microblaze_elf_howto_raw[i].name != NULL | |
667 | && strcasecmp (microblaze_elf_howto_raw[i].name, r_name) == 0) | |
668 | return µblaze_elf_howto_raw[i]; | |
669 | ||
670 | return NULL; | |
671 | } | |
672 | ||
673 | /* Set the howto pointer for a RCE ELF reloc. */ | |
674 | ||
0a1b45a2 | 675 | static bool |
0aa13fee | 676 | microblaze_elf_info_to_howto (bfd * abfd, |
7ba29e2a NC |
677 | arelent * cache_ptr, |
678 | Elf_Internal_Rela * dst) | |
679 | { | |
cd21f5da NC |
680 | unsigned int r_type; |
681 | ||
7ba29e2a NC |
682 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) |
683 | /* Initialize howto table if needed. */ | |
684 | microblaze_elf_howto_init (); | |
685 | ||
cd21f5da NC |
686 | r_type = ELF32_R_TYPE (dst->r_info); |
687 | if (r_type >= R_MICROBLAZE_max) | |
688 | { | |
695344c0 | 689 | /* xgettext:c-format */ |
0aa13fee | 690 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 691 | abfd, r_type); |
cd21f5da | 692 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 693 | return false; |
cd21f5da | 694 | } |
7ba29e2a | 695 | |
cd21f5da | 696 | cache_ptr->howto = microblaze_elf_howto_table [r_type]; |
0a1b45a2 | 697 | return true; |
7ba29e2a NC |
698 | } |
699 | ||
9751574e AM |
700 | /* Relax table contains information about instructions which can |
701 | be removed by relaxation -- replacing a long address with a | |
702 | short address. */ | |
703 | struct relax_table | |
704 | { | |
705 | /* Address where bytes may be deleted. */ | |
706 | bfd_vma addr; | |
707 | ||
708 | /* Number of bytes to be deleted. */ | |
709 | size_t size; | |
710 | }; | |
711 | ||
712 | struct _microblaze_elf_section_data | |
713 | { | |
714 | struct bfd_elf_section_data elf; | |
715 | /* Count of used relaxation table entries. */ | |
716 | size_t relax_count; | |
717 | /* Relaxation table. */ | |
718 | struct relax_table *relax; | |
719 | }; | |
720 | ||
721 | #define microblaze_elf_section_data(sec) \ | |
722 | ((struct _microblaze_elf_section_data *) elf_section_data (sec)) | |
723 | ||
724 | static bool | |
725 | microblaze_elf_new_section_hook (bfd *abfd, asection *sec) | |
726 | { | |
727 | if (!sec->used_by_bfd) | |
728 | { | |
729 | struct _microblaze_elf_section_data *sdata; | |
730 | size_t amt = sizeof (*sdata); | |
731 | ||
732 | sdata = bfd_zalloc (abfd, amt); | |
733 | if (sdata == NULL) | |
734 | return false; | |
735 | sec->used_by_bfd = sdata; | |
736 | } | |
737 | ||
738 | return _bfd_elf_new_section_hook (abfd, sec); | |
739 | } | |
740 | ||
7ba29e2a NC |
741 | /* Microblaze ELF local labels start with 'L.' or '$L', not '.L'. */ |
742 | ||
0a1b45a2 | 743 | static bool |
7ba29e2a NC |
744 | microblaze_elf_is_local_label_name (bfd *abfd, const char *name) |
745 | { | |
746 | if (name[0] == 'L' && name[1] == '.') | |
0a1b45a2 | 747 | return true; |
7ba29e2a NC |
748 | |
749 | if (name[0] == '$' && name[1] == 'L') | |
0a1b45a2 | 750 | return true; |
7ba29e2a NC |
751 | |
752 | /* With gcc, the labels go back to starting with '.', so we accept | |
753 | the generic ELF local label syntax as well. */ | |
754 | return _bfd_elf_is_local_label_name (abfd, name); | |
755 | } | |
756 | ||
7ba29e2a NC |
757 | /* ELF linker hash entry. */ |
758 | ||
759 | struct elf32_mb_link_hash_entry | |
760 | { | |
761 | struct elf_link_hash_entry elf; | |
762 | ||
69b06cc8 ME |
763 | /* TLS Reference Types for the symbol; Updated by check_relocs */ |
764 | #define TLS_GD 1 /* GD reloc. */ | |
765 | #define TLS_LD 2 /* LD reloc. */ | |
766 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
767 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
768 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
769 | unsigned char tls_mask; | |
770 | ||
7ba29e2a NC |
771 | }; |
772 | ||
69b06cc8 ME |
773 | #define IS_TLS_GD(x) (x == (TLS_TLS | TLS_GD)) |
774 | #define IS_TLS_LD(x) (x == (TLS_TLS | TLS_LD)) | |
775 | #define IS_TLS_DTPREL(x) (x == (TLS_TLS | TLS_DTPREL)) | |
776 | #define IS_TLS_NONE(x) (x == 0) | |
777 | ||
7ba29e2a NC |
778 | #define elf32_mb_hash_entry(ent) ((struct elf32_mb_link_hash_entry *)(ent)) |
779 | ||
780 | /* ELF linker hash table. */ | |
781 | ||
782 | struct elf32_mb_link_hash_table | |
783 | { | |
784 | struct elf_link_hash_table elf; | |
785 | ||
69b06cc8 ME |
786 | /* TLS Local Dynamic GOT Entry */ |
787 | union { | |
788 | bfd_signed_vma refcount; | |
789 | bfd_vma offset; | |
790 | } tlsld_got; | |
7ba29e2a NC |
791 | }; |
792 | ||
69b06cc8 ME |
793 | /* Nonzero if this section has TLS related relocations. */ |
794 | #define has_tls_reloc sec_flg0 | |
795 | ||
7ba29e2a NC |
796 | /* Get the ELF linker hash table from a link_info structure. */ |
797 | ||
0f55320b AM |
798 | #define elf32_mb_hash_table(p) \ |
799 | ((is_elf_hash_table ((p)->hash) \ | |
800 | && elf_hash_table_id (elf_hash_table (p)) == MICROBLAZE_ELF_DATA) \ | |
801 | ? (struct elf32_mb_link_hash_table *) (p)->hash : NULL) | |
7ba29e2a NC |
802 | |
803 | /* Create an entry in a microblaze ELF linker hash table. */ | |
804 | ||
805 | static struct bfd_hash_entry * | |
806 | link_hash_newfunc (struct bfd_hash_entry *entry, | |
807 | struct bfd_hash_table *table, | |
808 | const char *string) | |
809 | { | |
810 | /* Allocate the structure if it has not already been allocated by a | |
811 | subclass. */ | |
812 | if (entry == NULL) | |
813 | { | |
814 | entry = bfd_hash_allocate (table, | |
815 | sizeof (struct elf32_mb_link_hash_entry)); | |
816 | if (entry == NULL) | |
817 | return entry; | |
818 | } | |
819 | ||
820 | /* Call the allocation method of the superclass. */ | |
821 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
822 | if (entry != NULL) | |
823 | { | |
824 | struct elf32_mb_link_hash_entry *eh; | |
825 | ||
826 | eh = (struct elf32_mb_link_hash_entry *) entry; | |
69b06cc8 | 827 | eh->tls_mask = 0; |
7ba29e2a NC |
828 | } |
829 | ||
830 | return entry; | |
831 | } | |
832 | ||
833 | /* Create a mb ELF linker hash table. */ | |
834 | ||
835 | static struct bfd_link_hash_table * | |
836 | microblaze_elf_link_hash_table_create (bfd *abfd) | |
837 | { | |
838 | struct elf32_mb_link_hash_table *ret; | |
986f0783 | 839 | size_t amt = sizeof (struct elf32_mb_link_hash_table); |
7ba29e2a NC |
840 | |
841 | ret = (struct elf32_mb_link_hash_table *) bfd_zmalloc (amt); | |
842 | if (ret == NULL) | |
843 | return NULL; | |
844 | ||
845 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, | |
4dfe6ac6 NC |
846 | sizeof (struct elf32_mb_link_hash_entry), |
847 | MICROBLAZE_ELF_DATA)) | |
7ba29e2a NC |
848 | { |
849 | free (ret); | |
850 | return NULL; | |
851 | } | |
852 | ||
853 | return &ret->elf.root; | |
854 | } | |
855 | \f | |
856 | /* Set the values of the small data pointers. */ | |
857 | ||
858 | static void | |
859 | microblaze_elf_final_sdp (struct bfd_link_info *info) | |
860 | { | |
861 | struct bfd_link_hash_entry *h; | |
862 | ||
0a1b45a2 | 863 | h = bfd_link_hash_lookup (info->hash, RO_SDA_ANCHOR_NAME, false, false, true); |
7ba29e2a NC |
864 | if (h != (struct bfd_link_hash_entry *) NULL |
865 | && h->type == bfd_link_hash_defined) | |
866 | ro_small_data_pointer = (h->u.def.value | |
07d6d2b8 AM |
867 | + h->u.def.section->output_section->vma |
868 | + h->u.def.section->output_offset); | |
7ba29e2a | 869 | |
0a1b45a2 | 870 | h = bfd_link_hash_lookup (info->hash, RW_SDA_ANCHOR_NAME, false, false, true); |
7ba29e2a NC |
871 | if (h != (struct bfd_link_hash_entry *) NULL |
872 | && h->type == bfd_link_hash_defined) | |
873 | rw_small_data_pointer = (h->u.def.value | |
07d6d2b8 AM |
874 | + h->u.def.section->output_section->vma |
875 | + h->u.def.section->output_offset); | |
7ba29e2a NC |
876 | } |
877 | ||
69b06cc8 ME |
878 | static bfd_vma |
879 | dtprel_base (struct bfd_link_info *info) | |
880 | { | |
881 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
882 | if (elf_hash_table (info)->tls_sec == NULL) | |
883 | return 0; | |
884 | return elf_hash_table (info)->tls_sec->vma; | |
885 | } | |
886 | ||
887 | /* The size of the thread control block. */ | |
888 | #define TCB_SIZE 8 | |
889 | ||
890 | /* Output a simple dynamic relocation into SRELOC. */ | |
891 | ||
892 | static void | |
893 | microblaze_elf_output_dynamic_relocation (bfd *output_bfd, | |
894 | asection *sreloc, | |
895 | unsigned long reloc_index, | |
896 | unsigned long indx, | |
897 | int r_type, | |
898 | bfd_vma offset, | |
899 | bfd_vma addend) | |
900 | { | |
901 | ||
902 | Elf_Internal_Rela rel; | |
903 | ||
904 | rel.r_info = ELF32_R_INFO (indx, r_type); | |
905 | rel.r_offset = offset; | |
906 | rel.r_addend = addend; | |
907 | ||
908 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
07d6d2b8 | 909 | (sreloc->contents + reloc_index * sizeof (Elf32_External_Rela))); |
69b06cc8 ME |
910 | } |
911 | ||
7ba29e2a NC |
912 | /* This code is taken from elf32-m32r.c |
913 | There is some attempt to make this function usable for many architectures, | |
914 | both USE_REL and USE_RELA ['twould be nice if such a critter existed], | |
915 | if only to serve as a learning tool. | |
916 | ||
917 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
918 | to handle the relocations for a section. | |
919 | ||
920 | The relocs are always passed as Rela structures; if the section | |
921 | actually uses Rel structures, the r_addend field will always be | |
922 | zero. | |
923 | ||
924 | This function is responsible for adjust the section contents as | |
925 | necessary, and (if using Rela relocs and generating a | |
926 | relocatable output file) adjusting the reloc addend as | |
927 | necessary. | |
928 | ||
929 | This function does not have to worry about setting the reloc | |
930 | address or the reloc symbol index. | |
931 | ||
932 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
933 | ||
934 | LOCAL_SECTIONS is an array giving the section in the input file | |
935 | corresponding to the st_shndx field of each local symbol. | |
936 | ||
937 | The global hash table entry for the global symbols can be found | |
938 | via elf_sym_hashes (input_bfd). | |
939 | ||
940 | When generating relocatable output, this function must handle | |
941 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
942 | going to be the section symbol corresponding to the output | |
943 | section, which means that the addend must be adjusted | |
944 | accordingly. */ | |
945 | ||
0f684201 | 946 | static int |
7ba29e2a | 947 | microblaze_elf_relocate_section (bfd *output_bfd, |
07d6d2b8 AM |
948 | struct bfd_link_info *info, |
949 | bfd *input_bfd, | |
950 | asection *input_section, | |
951 | bfd_byte *contents, | |
952 | Elf_Internal_Rela *relocs, | |
953 | Elf_Internal_Sym *local_syms, | |
954 | asection **local_sections) | |
7ba29e2a NC |
955 | { |
956 | struct elf32_mb_link_hash_table *htab; | |
957 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
958 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); | |
959 | Elf_Internal_Rela *rel, *relend; | |
f23200ad | 960 | int endian = (bfd_little_endian (output_bfd)) ? 0 : 2; |
7ba29e2a | 961 | /* Assume success. */ |
0a1b45a2 | 962 | bool ret = true; |
7ba29e2a NC |
963 | asection *sreloc; |
964 | bfd_vma *local_got_offsets; | |
69b06cc8 | 965 | unsigned int tls_type; |
7ba29e2a NC |
966 | |
967 | if (!microblaze_elf_howto_table[R_MICROBLAZE_max-1]) | |
968 | microblaze_elf_howto_init (); | |
969 | ||
970 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 | 971 | if (htab == NULL) |
0a1b45a2 | 972 | return false; |
4dfe6ac6 | 973 | |
7ba29e2a NC |
974 | local_got_offsets = elf_local_got_offsets (input_bfd); |
975 | ||
976 | sreloc = elf_section_data (input_section)->sreloc; | |
977 | ||
978 | rel = relocs; | |
979 | relend = relocs + input_section->reloc_count; | |
980 | for (; rel < relend; rel++) | |
981 | { | |
982 | int r_type; | |
983 | reloc_howto_type *howto; | |
984 | unsigned long r_symndx; | |
985 | bfd_vma addend = rel->r_addend; | |
986 | bfd_vma offset = rel->r_offset; | |
987 | struct elf_link_hash_entry *h; | |
988 | Elf_Internal_Sym *sym; | |
989 | asection *sec; | |
990 | const char *sym_name; | |
991 | bfd_reloc_status_type r = bfd_reloc_ok; | |
992 | const char *errmsg = NULL; | |
0a1b45a2 | 993 | bool unresolved_reloc = false; |
7ba29e2a NC |
994 | |
995 | h = NULL; | |
996 | r_type = ELF32_R_TYPE (rel->r_info); | |
69b06cc8 ME |
997 | tls_type = 0; |
998 | ||
7ba29e2a NC |
999 | if (r_type < 0 || r_type >= (int) R_MICROBLAZE_max) |
1000 | { | |
695344c0 | 1001 | /* xgettext:c-format */ |
0aa13fee | 1002 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
dae82561 | 1003 | input_bfd, (int) r_type); |
7ba29e2a | 1004 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 1005 | ret = false; |
7ba29e2a NC |
1006 | continue; |
1007 | } | |
1008 | ||
1009 | howto = microblaze_elf_howto_table[r_type]; | |
1010 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1011 | ||
0e1862bb | 1012 | if (bfd_link_relocatable (info)) |
7ba29e2a NC |
1013 | { |
1014 | /* This is a relocatable link. We don't have to change | |
1015 | anything, unless the reloc is against a section symbol, | |
1016 | in which case we have to adjust according to where the | |
1017 | section symbol winds up in the output section. */ | |
1018 | sec = NULL; | |
1019 | if (r_symndx >= symtab_hdr->sh_info) | |
1020 | /* External symbol. */ | |
1021 | continue; | |
1022 | ||
1023 | /* Local symbol. */ | |
1024 | sym = local_syms + r_symndx; | |
1025 | sym_name = "<local symbol>"; | |
1026 | /* STT_SECTION: symbol is associated with a section. */ | |
1027 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
1028 | /* Symbol isn't associated with a section. Nothing to do. */ | |
1029 | continue; | |
1030 | ||
1031 | sec = local_sections[r_symndx]; | |
1032 | addend += sec->output_offset + sym->st_value; | |
1033 | #ifndef USE_REL | |
1034 | /* This can't be done for USE_REL because it doesn't mean anything | |
1035 | and elf_link_input_bfd asserts this stays zero. */ | |
1036 | /* rel->r_addend = addend; */ | |
1037 | #endif | |
1038 | ||
1039 | #ifndef USE_REL | |
1040 | /* Addends are stored with relocs. We're done. */ | |
1041 | continue; | |
1042 | #else /* USE_REL */ | |
1043 | /* If partial_inplace, we need to store any additional addend | |
1044 | back in the section. */ | |
1045 | if (!howto->partial_inplace) | |
1046 | continue; | |
1047 | /* ??? Here is a nice place to call a special_function like handler. */ | |
1048 | r = _bfd_relocate_contents (howto, input_bfd, addend, | |
1049 | contents + offset); | |
1050 | #endif /* USE_REL */ | |
1051 | } | |
1052 | else | |
1053 | { | |
1054 | bfd_vma relocation; | |
0a1b45a2 | 1055 | bool resolved_to_zero; |
7ba29e2a NC |
1056 | |
1057 | /* This is a final link. */ | |
1058 | sym = NULL; | |
1059 | sec = NULL; | |
0a1b45a2 | 1060 | unresolved_reloc = false; |
7ba29e2a NC |
1061 | |
1062 | if (r_symndx < symtab_hdr->sh_info) | |
1063 | { | |
1064 | /* Local symbol. */ | |
1065 | sym = local_syms + r_symndx; | |
1066 | sec = local_sections[r_symndx]; | |
1067 | if (sec == 0) | |
1068 | continue; | |
1069 | sym_name = "<local symbol>"; | |
1070 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
1071 | /* r_addend may have changed if the reference section was | |
1072 | a merge section. */ | |
1073 | addend = rel->r_addend; | |
1074 | } | |
1075 | else | |
1076 | { | |
1077 | /* External symbol. */ | |
0a1b45a2 AM |
1078 | bool warned ATTRIBUTE_UNUSED; |
1079 | bool ignored ATTRIBUTE_UNUSED; | |
7ba29e2a NC |
1080 | |
1081 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
1082 | r_symndx, symtab_hdr, sym_hashes, | |
1083 | h, sec, relocation, | |
62d887d4 | 1084 | unresolved_reloc, warned, ignored); |
7ba29e2a NC |
1085 | sym_name = h->root.root.string; |
1086 | } | |
1087 | ||
1088 | /* Sanity check the address. */ | |
e57278ef | 1089 | if (offset > bfd_get_section_limit (input_bfd, input_section)) |
7ba29e2a NC |
1090 | { |
1091 | r = bfd_reloc_outofrange; | |
1092 | goto check_reloc; | |
1093 | } | |
1094 | ||
112fef40 L |
1095 | resolved_to_zero = (h != NULL |
1096 | && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
1097 | ||
7ba29e2a NC |
1098 | switch ((int) r_type) |
1099 | { | |
1100 | case (int) R_MICROBLAZE_SRO32 : | |
1101 | { | |
1102 | const char *name; | |
1103 | ||
1104 | /* Only relocate if the symbol is defined. */ | |
1105 | if (sec) | |
1106 | { | |
fd361982 | 1107 | name = bfd_section_name (sec); |
7ba29e2a NC |
1108 | |
1109 | if (strcmp (name, ".sdata2") == 0 | |
1110 | || strcmp (name, ".sbss2") == 0) | |
1111 | { | |
1112 | if (ro_small_data_pointer == 0) | |
1113 | microblaze_elf_final_sdp (info); | |
1114 | if (ro_small_data_pointer == 0) | |
1115 | { | |
0a1b45a2 | 1116 | ret = false; |
7ba29e2a NC |
1117 | r = bfd_reloc_undefined; |
1118 | goto check_reloc; | |
1119 | } | |
1120 | ||
1121 | /* At this point `relocation' contains the object's | |
1122 | address. */ | |
1123 | relocation -= ro_small_data_pointer; | |
1124 | /* Now it contains the offset from _SDA2_BASE_. */ | |
1125 | r = _bfd_final_link_relocate (howto, input_bfd, | |
1126 | input_section, | |
1127 | contents, offset, | |
1128 | relocation, addend); | |
1129 | } | |
1130 | else | |
1131 | { | |
4eca0228 | 1132 | _bfd_error_handler |
695344c0 | 1133 | /* xgettext:c-format */ |
38f14ab8 | 1134 | (_("%pB: the target (%s) of an %s relocation" |
871b3ab2 | 1135 | " is in the wrong section (%pA)"), |
dae82561 | 1136 | input_bfd, |
4eca0228 AM |
1137 | sym_name, |
1138 | microblaze_elf_howto_table[(int) r_type]->name, | |
dae82561 | 1139 | sec); |
7ba29e2a | 1140 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
0a1b45a2 | 1141 | ret = false; |
7ba29e2a NC |
1142 | continue; |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | break; | |
1147 | ||
1148 | case (int) R_MICROBLAZE_SRW32 : | |
1149 | { | |
1150 | const char *name; | |
1151 | ||
1152 | /* Only relocate if the symbol is defined. */ | |
1153 | if (sec) | |
1154 | { | |
fd361982 | 1155 | name = bfd_section_name (sec); |
7ba29e2a NC |
1156 | |
1157 | if (strcmp (name, ".sdata") == 0 | |
1158 | || strcmp (name, ".sbss") == 0) | |
1159 | { | |
1160 | if (rw_small_data_pointer == 0) | |
1161 | microblaze_elf_final_sdp (info); | |
1162 | if (rw_small_data_pointer == 0) | |
1163 | { | |
0a1b45a2 | 1164 | ret = false; |
7ba29e2a NC |
1165 | r = bfd_reloc_undefined; |
1166 | goto check_reloc; | |
1167 | } | |
1168 | ||
1169 | /* At this point `relocation' contains the object's | |
1170 | address. */ | |
1171 | relocation -= rw_small_data_pointer; | |
1172 | /* Now it contains the offset from _SDA_BASE_. */ | |
1173 | r = _bfd_final_link_relocate (howto, input_bfd, | |
1174 | input_section, | |
1175 | contents, offset, | |
1176 | relocation, addend); | |
1177 | } | |
1178 | else | |
1179 | { | |
4eca0228 | 1180 | _bfd_error_handler |
695344c0 | 1181 | /* xgettext:c-format */ |
38f14ab8 | 1182 | (_("%pB: the target (%s) of an %s relocation" |
871b3ab2 | 1183 | " is in the wrong section (%pA)"), |
dae82561 | 1184 | input_bfd, |
4eca0228 AM |
1185 | sym_name, |
1186 | microblaze_elf_howto_table[(int) r_type]->name, | |
dae82561 | 1187 | sec); |
7ba29e2a | 1188 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
0a1b45a2 | 1189 | ret = false; |
7ba29e2a NC |
1190 | continue; |
1191 | } | |
1192 | } | |
1193 | } | |
1194 | break; | |
1195 | ||
1196 | case (int) R_MICROBLAZE_32_SYM_OP_SYM: | |
1197 | break; /* Do nothing. */ | |
1198 | ||
1199 | case (int) R_MICROBLAZE_GOTPC_64: | |
ce558b89 AM |
1200 | relocation = (htab->elf.sgotplt->output_section->vma |
1201 | + htab->elf.sgotplt->output_offset); | |
7ba29e2a NC |
1202 | relocation -= (input_section->output_section->vma |
1203 | + input_section->output_offset | |
1204 | + offset + INST_WORD_SIZE); | |
1205 | relocation += addend; | |
1206 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
07d6d2b8 | 1207 | contents + offset + endian); |
7ba29e2a | 1208 | bfd_put_16 (input_bfd, relocation & 0xffff, |
07d6d2b8 | 1209 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1210 | break; |
1211 | ||
3f0a5f17 ME |
1212 | case (int) R_MICROBLAZE_TEXTPCREL_64: |
1213 | relocation = input_section->output_section->vma; | |
1214 | relocation -= (input_section->output_section->vma | |
1215 | + input_section->output_offset | |
1216 | + offset + INST_WORD_SIZE); | |
1217 | relocation += addend; | |
1218 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
1219 | contents + offset + endian); | |
1220 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1221 | contents + offset + endian + INST_WORD_SIZE); | |
1222 | break; | |
1223 | ||
7ba29e2a NC |
1224 | case (int) R_MICROBLAZE_PLT_64: |
1225 | { | |
1226 | bfd_vma immediate; | |
ce558b89 | 1227 | if (htab->elf.splt != NULL && h != NULL |
7ba29e2a NC |
1228 | && h->plt.offset != (bfd_vma) -1) |
1229 | { | |
ce558b89 AM |
1230 | relocation = (htab->elf.splt->output_section->vma |
1231 | + htab->elf.splt->output_offset | |
7ba29e2a | 1232 | + h->plt.offset); |
0a1b45a2 | 1233 | unresolved_reloc = false; |
7ba29e2a NC |
1234 | immediate = relocation - (input_section->output_section->vma |
1235 | + input_section->output_offset | |
1236 | + offset + INST_WORD_SIZE); | |
1237 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
07d6d2b8 | 1238 | contents + offset + endian); |
7ba29e2a | 1239 | bfd_put_16 (input_bfd, immediate & 0xffff, |
07d6d2b8 | 1240 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1241 | } |
1242 | else | |
1243 | { | |
1244 | relocation -= (input_section->output_section->vma | |
1245 | + input_section->output_offset | |
1246 | + offset + INST_WORD_SIZE); | |
1247 | immediate = relocation; | |
1248 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
07d6d2b8 | 1249 | contents + offset + endian); |
7ba29e2a | 1250 | bfd_put_16 (input_bfd, immediate & 0xffff, |
07d6d2b8 | 1251 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1252 | } |
1253 | break; | |
1254 | } | |
1255 | ||
69b06cc8 ME |
1256 | case (int) R_MICROBLAZE_TLSGD: |
1257 | tls_type = (TLS_TLS | TLS_GD); | |
1258 | goto dogot; | |
1259 | case (int) R_MICROBLAZE_TLSLD: | |
1260 | tls_type = (TLS_TLS | TLS_LD); | |
1a0670f3 | 1261 | /* Fall through. */ |
69b06cc8 | 1262 | dogot: |
7ba29e2a NC |
1263 | case (int) R_MICROBLAZE_GOT_64: |
1264 | { | |
69b06cc8 ME |
1265 | bfd_vma *offp; |
1266 | bfd_vma off, off2; | |
1267 | unsigned long indx; | |
1268 | bfd_vma static_value; | |
1269 | ||
0a1b45a2 | 1270 | bool need_relocs = false; |
ce558b89 | 1271 | if (htab->elf.sgot == NULL) |
7ba29e2a | 1272 | abort (); |
69b06cc8 ME |
1273 | |
1274 | indx = 0; | |
1275 | offp = NULL; | |
1276 | ||
1277 | /* 1. Identify GOT Offset; | |
1278 | 2. Compute Static Values | |
1279 | 3. Process Module Id, Process Offset | |
1280 | 4. Fixup Relocation with GOT offset value. */ | |
1281 | ||
1282 | /* 1. Determine GOT Offset to use : TLS_LD, global, local */ | |
1283 | if (IS_TLS_LD (tls_type)) | |
1284 | offp = &htab->tlsld_got.offset; | |
1285 | else if (h != NULL) | |
1286 | { | |
ce558b89 AM |
1287 | if (htab->elf.sgotplt != NULL |
1288 | && h->got.offset != (bfd_vma) -1) | |
1289 | offp = &h->got.offset; | |
69b06cc8 | 1290 | else |
ce558b89 | 1291 | abort (); |
69b06cc8 ME |
1292 | } |
1293 | else | |
7ba29e2a | 1294 | { |
7ba29e2a NC |
1295 | if (local_got_offsets == NULL) |
1296 | abort (); | |
69b06cc8 ME |
1297 | offp = &local_got_offsets[r_symndx]; |
1298 | } | |
1299 | ||
1300 | if (!offp) | |
1301 | abort (); | |
1302 | ||
1303 | off = (*offp) & ~1; | |
1304 | off2 = off; | |
1305 | ||
1306 | if (IS_TLS_LD(tls_type) || IS_TLS_GD(tls_type)) | |
1307 | off2 = off + 4; | |
1308 | ||
1309 | /* Symbol index to use for relocs */ | |
1310 | if (h != NULL) | |
1311 | { | |
0a1b45a2 | 1312 | bool dyn = |
69b06cc8 ME |
1313 | elf_hash_table (info)->dynamic_sections_created; |
1314 | ||
0e1862bb L |
1315 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
1316 | bfd_link_pic (info), | |
1317 | h) | |
1318 | && (!bfd_link_pic (info) | |
1319 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
69b06cc8 ME |
1320 | indx = h->dynindx; |
1321 | } | |
7ba29e2a | 1322 | |
69b06cc8 | 1323 | /* Need to generate relocs ? */ |
0e1862bb | 1324 | if ((bfd_link_pic (info) || indx != 0) |
69b06cc8 | 1325 | && (h == NULL |
112fef40 L |
1326 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1327 | && !resolved_to_zero) | |
69b06cc8 | 1328 | || h->root.type != bfd_link_hash_undefweak)) |
0a1b45a2 | 1329 | need_relocs = true; |
69b06cc8 ME |
1330 | |
1331 | /* 2. Compute/Emit Static value of r-expression */ | |
1332 | static_value = relocation + addend; | |
1333 | ||
1334 | /* 3. Process module-id and offset */ | |
1335 | if (! ((*offp) & 1) ) | |
1336 | { | |
1337 | bfd_vma got_offset; | |
1338 | ||
ce558b89 AM |
1339 | got_offset = (htab->elf.sgot->output_section->vma |
1340 | + htab->elf.sgot->output_offset | |
69b06cc8 ME |
1341 | + off); |
1342 | ||
1343 | /* Process module-id */ | |
1344 | if (IS_TLS_LD(tls_type)) | |
1345 | { | |
0e1862bb | 1346 | if (! bfd_link_pic (info)) |
ce558b89 AM |
1347 | bfd_put_32 (output_bfd, 1, |
1348 | htab->elf.sgot->contents + off); | |
69b06cc8 | 1349 | else |
ce558b89 AM |
1350 | microblaze_elf_output_dynamic_relocation |
1351 | (output_bfd, | |
1352 | htab->elf.srelgot, | |
1353 | htab->elf.srelgot->reloc_count++, | |
1354 | /* symindex= */ 0, R_MICROBLAZE_TLSDTPMOD32, | |
1355 | got_offset, 0); | |
7ba29e2a | 1356 | } |
69b06cc8 ME |
1357 | else if (IS_TLS_GD(tls_type)) |
1358 | { | |
07d6d2b8 | 1359 | if (! need_relocs) |
ce558b89 AM |
1360 | bfd_put_32 (output_bfd, 1, |
1361 | htab->elf.sgot->contents + off); | |
07d6d2b8 | 1362 | else |
ce558b89 AM |
1363 | microblaze_elf_output_dynamic_relocation |
1364 | (output_bfd, | |
1365 | htab->elf.srelgot, | |
1366 | htab->elf.srelgot->reloc_count++, | |
1367 | /* symindex= */ indx, R_MICROBLAZE_TLSDTPMOD32, | |
1368 | got_offset, indx ? 0 : static_value); | |
69b06cc8 ME |
1369 | } |
1370 | ||
1371 | /* Process Offset */ | |
ce558b89 | 1372 | if (htab->elf.srelgot == NULL) |
69b06cc8 ME |
1373 | abort (); |
1374 | ||
ce558b89 AM |
1375 | got_offset = (htab->elf.sgot->output_section->vma |
1376 | + htab->elf.sgot->output_offset | |
69b06cc8 ME |
1377 | + off2); |
1378 | if (IS_TLS_LD(tls_type)) | |
1379 | { | |
07d6d2b8 AM |
1380 | /* For LD, offset should be 0 */ |
1381 | *offp |= 1; | |
1382 | bfd_put_32 (output_bfd, 0, | |
ce558b89 | 1383 | htab->elf.sgot->contents + off2); |
69b06cc8 ME |
1384 | } |
1385 | else if (IS_TLS_GD(tls_type)) | |
7ba29e2a | 1386 | { |
07d6d2b8 AM |
1387 | *offp |= 1; |
1388 | static_value -= dtprel_base(info); | |
1389 | if (need_relocs) | |
ce558b89 AM |
1390 | microblaze_elf_output_dynamic_relocation |
1391 | (output_bfd, | |
1392 | htab->elf.srelgot, | |
1393 | htab->elf.srelgot->reloc_count++, | |
1394 | /* symindex= */ indx, R_MICROBLAZE_TLSDTPREL32, | |
1395 | got_offset, indx ? 0 : static_value); | |
07d6d2b8 | 1396 | else |
ce558b89 AM |
1397 | bfd_put_32 (output_bfd, static_value, |
1398 | htab->elf.sgot->contents + off2); | |
7ba29e2a NC |
1399 | } |
1400 | else | |
69b06cc8 | 1401 | { |
ce558b89 AM |
1402 | bfd_put_32 (output_bfd, static_value, |
1403 | htab->elf.sgot->contents + off2); | |
69b06cc8 | 1404 | |
ce558b89 AM |
1405 | /* Relocs for dyn symbols generated by |
1406 | finish_dynamic_symbols */ | |
1407 | if (bfd_link_pic (info) && h == NULL) | |
1408 | { | |
1409 | *offp |= 1; | |
1410 | microblaze_elf_output_dynamic_relocation | |
1411 | (output_bfd, | |
1412 | htab->elf.srelgot, | |
1413 | htab->elf.srelgot->reloc_count++, | |
1414 | /* symindex= */ indx, R_MICROBLAZE_REL, | |
1415 | got_offset, static_value); | |
1416 | } | |
69b06cc8 | 1417 | } |
7ba29e2a | 1418 | } |
69b06cc8 ME |
1419 | |
1420 | /* 4. Fixup Relocation with GOT offset value | |
1421 | Compute relative address of GOT entry for applying | |
1422 | the current relocation */ | |
ce558b89 AM |
1423 | relocation = htab->elf.sgot->output_section->vma |
1424 | + htab->elf.sgot->output_offset | |
69b06cc8 | 1425 | + off |
ce558b89 AM |
1426 | - htab->elf.sgotplt->output_section->vma |
1427 | - htab->elf.sgotplt->output_offset; | |
69b06cc8 ME |
1428 | |
1429 | /* Apply Current Relocation */ | |
7ba29e2a | 1430 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, |
07d6d2b8 | 1431 | contents + offset + endian); |
7ba29e2a | 1432 | bfd_put_16 (input_bfd, relocation & 0xffff, |
07d6d2b8 | 1433 | contents + offset + endian + INST_WORD_SIZE); |
69b06cc8 | 1434 | |
0a1b45a2 | 1435 | unresolved_reloc = false; |
7ba29e2a NC |
1436 | break; |
1437 | } | |
1438 | ||
1439 | case (int) R_MICROBLAZE_GOTOFF_64: | |
1440 | { | |
1441 | bfd_vma immediate; | |
1442 | unsigned short lo, high; | |
1443 | relocation += addend; | |
ce558b89 AM |
1444 | relocation -= (htab->elf.sgotplt->output_section->vma |
1445 | + htab->elf.sgotplt->output_offset); | |
7ba29e2a NC |
1446 | /* Write this value into correct location. */ |
1447 | immediate = relocation; | |
1448 | lo = immediate & 0x0000ffff; | |
1449 | high = (immediate >> 16) & 0x0000ffff; | |
f23200ad | 1450 | bfd_put_16 (input_bfd, high, contents + offset + endian); |
ce558b89 AM |
1451 | bfd_put_16 (input_bfd, lo, |
1452 | contents + offset + INST_WORD_SIZE + endian); | |
7ba29e2a NC |
1453 | break; |
1454 | } | |
1455 | ||
1456 | case (int) R_MICROBLAZE_GOTOFF_32: | |
1457 | { | |
1458 | relocation += addend; | |
ce558b89 AM |
1459 | relocation -= (htab->elf.sgotplt->output_section->vma |
1460 | + htab->elf.sgotplt->output_offset); | |
7ba29e2a NC |
1461 | /* Write this value into correct location. */ |
1462 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1463 | break; | |
1464 | } | |
1465 | ||
69b06cc8 ME |
1466 | case (int) R_MICROBLAZE_TLSDTPREL64: |
1467 | relocation += addend; | |
1468 | relocation -= dtprel_base(info); | |
1469 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
1470 | contents + offset + 2); | |
1471 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1472 | contents + offset + 2 + INST_WORD_SIZE); | |
1473 | break; | |
3f0a5f17 ME |
1474 | case (int) R_MICROBLAZE_TEXTREL_64: |
1475 | case (int) R_MICROBLAZE_TEXTREL_32_LO: | |
7ba29e2a NC |
1476 | case (int) R_MICROBLAZE_64_PCREL : |
1477 | case (int) R_MICROBLAZE_64: | |
1478 | case (int) R_MICROBLAZE_32: | |
1479 | { | |
cf35638d | 1480 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols |
7ba29e2a NC |
1481 | from removed linkonce sections, or sections discarded by |
1482 | a linker script. */ | |
cf35638d | 1483 | if (r_symndx == STN_UNDEF || (input_section->flags & SEC_ALLOC) == 0) |
7ba29e2a NC |
1484 | { |
1485 | relocation += addend; | |
1486 | if (r_type == R_MICROBLAZE_32) | |
1487 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1488 | else | |
1489 | { | |
1490 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1491 | relocation -= (input_section->output_section->vma | |
1492 | + input_section->output_offset | |
1493 | + offset + INST_WORD_SIZE); | |
3f0a5f17 ME |
1494 | else if (r_type == R_MICROBLAZE_TEXTREL_64 |
1495 | || r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1496 | relocation -= input_section->output_section->vma; | |
1497 | ||
1498 | if (r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1499 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1500 | contents + offset + endian); | |
1501 | ||
1502 | else | |
1503 | { | |
1504 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
07d6d2b8 | 1505 | contents + offset + endian); |
3f0a5f17 | 1506 | bfd_put_16 (input_bfd, relocation & 0xffff, |
07d6d2b8 | 1507 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a | 1508 | } |
3f0a5f17 | 1509 | } |
7ba29e2a NC |
1510 | break; |
1511 | } | |
1512 | ||
0e1862bb | 1513 | if ((bfd_link_pic (info) |
7ba29e2a | 1514 | && (h == NULL |
112fef40 L |
1515 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1516 | && !resolved_to_zero) | |
7ba29e2a NC |
1517 | || h->root.type != bfd_link_hash_undefweak) |
1518 | && (!howto->pc_relative | |
1519 | || (h != NULL | |
1520 | && h->dynindx != -1 | |
1521 | && (!info->symbolic | |
1522 | || !h->def_regular)))) | |
0e1862bb | 1523 | || (!bfd_link_pic (info) |
7ba29e2a NC |
1524 | && h != NULL |
1525 | && h->dynindx != -1 | |
1526 | && !h->non_got_ref | |
1527 | && ((h->def_dynamic | |
1528 | && !h->def_regular) | |
1529 | || h->root.type == bfd_link_hash_undefweak | |
1530 | || h->root.type == bfd_link_hash_undefined))) | |
1531 | { | |
1532 | Elf_Internal_Rela outrel; | |
1533 | bfd_byte *loc; | |
0a1b45a2 | 1534 | bool skip; |
7ba29e2a NC |
1535 | |
1536 | /* When generating a shared object, these relocations | |
1537 | are copied into the output file to be resolved at run | |
1538 | time. */ | |
1539 | ||
1540 | BFD_ASSERT (sreloc != NULL); | |
1541 | ||
0a1b45a2 | 1542 | skip = false; |
7ba29e2a NC |
1543 | |
1544 | outrel.r_offset = | |
1545 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1546 | rel->r_offset); | |
1547 | if (outrel.r_offset == (bfd_vma) -1) | |
0a1b45a2 | 1548 | skip = true; |
7ba29e2a | 1549 | else if (outrel.r_offset == (bfd_vma) -2) |
0a1b45a2 | 1550 | skip = true; |
7ba29e2a NC |
1551 | outrel.r_offset += (input_section->output_section->vma |
1552 | + input_section->output_offset); | |
1553 | ||
1554 | if (skip) | |
1555 | memset (&outrel, 0, sizeof outrel); | |
1556 | /* h->dynindx may be -1 if the symbol was marked to | |
1557 | become local. */ | |
1558 | else if (h != NULL | |
1559 | && ((! info->symbolic && h->dynindx != -1) | |
1560 | || !h->def_regular)) | |
1561 | { | |
1562 | BFD_ASSERT (h->dynindx != -1); | |
1563 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1564 | outrel.r_addend = addend; | |
1565 | } | |
1566 | else | |
1567 | { | |
1568 | if (r_type == R_MICROBLAZE_32) | |
1569 | { | |
1570 | outrel.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); | |
1571 | outrel.r_addend = relocation + addend; | |
1572 | } | |
1573 | else | |
1574 | { | |
1575 | BFD_FAIL (); | |
4eca0228 | 1576 | _bfd_error_handler |
871b3ab2 | 1577 | (_("%pB: probably compiled without -fPIC?"), |
7ba29e2a NC |
1578 | input_bfd); |
1579 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 1580 | return false; |
7ba29e2a NC |
1581 | } |
1582 | } | |
1583 | ||
1584 | loc = sreloc->contents; | |
1585 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1586 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1587 | break; | |
1588 | } | |
1589 | else | |
1590 | { | |
1591 | relocation += addend; | |
1592 | if (r_type == R_MICROBLAZE_32) | |
1593 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1594 | else | |
1595 | { | |
1596 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1597 | relocation -= (input_section->output_section->vma | |
1598 | + input_section->output_offset | |
1599 | + offset + INST_WORD_SIZE); | |
3f0a5f17 ME |
1600 | else if (r_type == R_MICROBLAZE_TEXTREL_64 |
1601 | || r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1602 | relocation -= input_section->output_section->vma; | |
1603 | ||
1604 | if (r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1605 | { | |
1606 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1607 | contents + offset + endian); | |
1608 | } | |
1609 | else | |
1610 | { | |
1611 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
1612 | contents + offset + endian); | |
1613 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1614 | contents + offset + endian | |
1615 | + INST_WORD_SIZE); | |
1616 | } | |
1617 | } | |
7ba29e2a NC |
1618 | break; |
1619 | } | |
1620 | } | |
1621 | ||
1622 | default : | |
1623 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1624 | contents, offset, | |
1625 | relocation, addend); | |
1626 | break; | |
1627 | } | |
1628 | } | |
1629 | ||
1630 | check_reloc: | |
1631 | ||
1632 | if (r != bfd_reloc_ok) | |
1633 | { | |
1634 | /* FIXME: This should be generic enough to go in a utility. */ | |
1635 | const char *name; | |
1636 | ||
1637 | if (h != NULL) | |
1638 | name = h->root.root.string; | |
1639 | else | |
1640 | { | |
1641 | name = (bfd_elf_string_from_elf_section | |
1642 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1643 | if (name == NULL || *name == '\0') | |
fd361982 | 1644 | name = bfd_section_name (sec); |
7ba29e2a NC |
1645 | } |
1646 | ||
1647 | if (errmsg != NULL) | |
1648 | goto common_error; | |
1649 | ||
1650 | switch (r) | |
1651 | { | |
1652 | case bfd_reloc_overflow: | |
1a72702b AM |
1653 | (*info->callbacks->reloc_overflow) |
1654 | (info, (h ? &h->root : NULL), name, howto->name, | |
1655 | (bfd_vma) 0, input_bfd, input_section, offset); | |
7ba29e2a NC |
1656 | break; |
1657 | ||
1658 | case bfd_reloc_undefined: | |
1a72702b | 1659 | (*info->callbacks->undefined_symbol) |
0a1b45a2 | 1660 | (info, name, input_bfd, input_section, offset, true); |
7ba29e2a NC |
1661 | break; |
1662 | ||
1663 | case bfd_reloc_outofrange: | |
1664 | errmsg = _("internal error: out of range error"); | |
1665 | goto common_error; | |
1666 | ||
1667 | case bfd_reloc_notsupported: | |
1668 | errmsg = _("internal error: unsupported relocation error"); | |
1669 | goto common_error; | |
1670 | ||
1671 | case bfd_reloc_dangerous: | |
1672 | errmsg = _("internal error: dangerous error"); | |
1673 | goto common_error; | |
1674 | ||
1675 | default: | |
1676 | errmsg = _("internal error: unknown error"); | |
1677 | /* Fall through. */ | |
1678 | common_error: | |
1a72702b AM |
1679 | (*info->callbacks->warning) (info, errmsg, name, input_bfd, |
1680 | input_section, offset); | |
7ba29e2a NC |
1681 | break; |
1682 | } | |
1683 | } | |
1684 | } | |
1685 | ||
1686 | return ret; | |
1687 | } | |
1688 | \f | |
1689 | /* Calculate fixup value for reference. */ | |
1690 | ||
9751574e | 1691 | static size_t |
886e427f | 1692 | calc_fixup (bfd_vma start, bfd_vma size, asection *sec) |
7ba29e2a | 1693 | { |
886e427f | 1694 | bfd_vma end = start + size; |
9751574e AM |
1695 | size_t i, fixup = 0; |
1696 | struct _microblaze_elf_section_data *sdata; | |
7ba29e2a | 1697 | |
9751574e | 1698 | if (sec == NULL || (sdata = microblaze_elf_section_data (sec)) == NULL) |
7ba29e2a NC |
1699 | return 0; |
1700 | ||
1701 | /* Look for addr in relax table, total fixup value. */ | |
9751574e | 1702 | for (i = 0; i < sdata->relax_count; i++) |
7ba29e2a | 1703 | { |
9751574e | 1704 | if (end <= sdata->relax[i].addr) |
07d6d2b8 | 1705 | break; |
9751574e | 1706 | if (end != start && start > sdata->relax[i].addr) |
07d6d2b8 | 1707 | continue; |
9751574e | 1708 | fixup += sdata->relax[i].size; |
7ba29e2a | 1709 | } |
7ba29e2a NC |
1710 | return fixup; |
1711 | } | |
1712 | ||
f23200ad ME |
1713 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of |
1714 | a 32-bit instruction. */ | |
1715 | static void | |
1716 | microblaze_bfd_write_imm_value_32 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1717 | { | |
1718 | unsigned long instr = bfd_get_32 (abfd, bfd_addr); | |
1719 | instr &= ~0x0000ffff; | |
1720 | instr |= (val & 0x0000ffff); | |
1721 | bfd_put_32 (abfd, instr, bfd_addr); | |
1722 | } | |
1723 | ||
1724 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of | |
1725 | two consecutive 32-bit instructions. */ | |
1726 | static void | |
1727 | microblaze_bfd_write_imm_value_64 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1728 | { | |
1729 | unsigned long instr_hi; | |
1730 | unsigned long instr_lo; | |
1731 | ||
1732 | instr_hi = bfd_get_32 (abfd, bfd_addr); | |
1733 | instr_hi &= ~0x0000ffff; | |
1734 | instr_hi |= ((val >> 16) & 0x0000ffff); | |
1735 | bfd_put_32 (abfd, instr_hi, bfd_addr); | |
1736 | ||
1737 | instr_lo = bfd_get_32 (abfd, bfd_addr + INST_WORD_SIZE); | |
1738 | instr_lo &= ~0x0000ffff; | |
1739 | instr_lo |= (val & 0x0000ffff); | |
1740 | bfd_put_32 (abfd, instr_lo, bfd_addr + INST_WORD_SIZE); | |
1741 | } | |
1742 | ||
0a1b45a2 | 1743 | static bool |
7ba29e2a NC |
1744 | microblaze_elf_relax_section (bfd *abfd, |
1745 | asection *sec, | |
1746 | struct bfd_link_info *link_info, | |
0a1b45a2 | 1747 | bool *again) |
7ba29e2a NC |
1748 | { |
1749 | Elf_Internal_Shdr *symtab_hdr; | |
1750 | Elf_Internal_Rela *internal_relocs; | |
1751 | Elf_Internal_Rela *free_relocs = NULL; | |
1752 | Elf_Internal_Rela *irel, *irelend; | |
1753 | bfd_byte *contents = NULL; | |
1754 | bfd_byte *free_contents = NULL; | |
1755 | int rel_count; | |
1756 | unsigned int shndx; | |
9751574e | 1757 | size_t i, sym_index; |
7ba29e2a NC |
1758 | asection *o; |
1759 | struct elf_link_hash_entry *sym_hash; | |
1760 | Elf_Internal_Sym *isymbuf, *isymend; | |
1761 | Elf_Internal_Sym *isym; | |
9751574e AM |
1762 | size_t symcount; |
1763 | size_t offset; | |
7ba29e2a | 1764 | bfd_vma src, dest; |
9751574e | 1765 | struct _microblaze_elf_section_data *sdata; |
7ba29e2a NC |
1766 | |
1767 | /* We only do this once per section. We may be able to delete some code | |
1768 | by running multiple passes, but it is not worth it. */ | |
0a1b45a2 | 1769 | *again = false; |
7ba29e2a NC |
1770 | |
1771 | /* Only do this for a text section. */ | |
0e1862bb | 1772 | if (bfd_link_relocatable (link_info) |
7ba29e2a | 1773 | || (sec->flags & SEC_RELOC) == 0 |
9751574e AM |
1774 | || (sec->flags & SEC_CODE) == 0 |
1775 | || sec->reloc_count == 0 | |
1776 | || (sdata = microblaze_elf_section_data (sec)) == NULL) | |
0a1b45a2 | 1777 | return true; |
7ba29e2a NC |
1778 | |
1779 | BFD_ASSERT ((sec->size > 0) || (sec->rawsize > 0)); | |
1780 | ||
1781 | /* If this is the first time we have been called for this section, | |
1782 | initialize the cooked size. */ | |
1783 | if (sec->size == 0) | |
1784 | sec->size = sec->rawsize; | |
1785 | ||
1786 | /* Get symbols for this section. */ | |
1787 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1788 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1789 | symcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
1790 | if (isymbuf == NULL) | |
1791 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, symcount, | |
07d6d2b8 | 1792 | 0, NULL, NULL, NULL); |
7ba29e2a NC |
1793 | BFD_ASSERT (isymbuf != NULL); |
1794 | ||
91d6fa6a | 1795 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, link_info->keep_memory); |
7ba29e2a NC |
1796 | if (internal_relocs == NULL) |
1797 | goto error_return; | |
1798 | if (! link_info->keep_memory) | |
1799 | free_relocs = internal_relocs; | |
1800 | ||
9751574e AM |
1801 | sdata->relax_count = 0; |
1802 | sdata->relax = (struct relax_table *) bfd_malloc ((sec->reloc_count + 1) | |
1803 | * sizeof (*sdata->relax)); | |
1804 | if (sdata->relax == NULL) | |
7ba29e2a | 1805 | goto error_return; |
7ba29e2a NC |
1806 | |
1807 | irelend = internal_relocs + sec->reloc_count; | |
1808 | rel_count = 0; | |
1809 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
1810 | { | |
1811 | bfd_vma symval; | |
1812 | if ((ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64_PCREL) | |
3f0a5f17 ME |
1813 | && (ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64) |
1814 | && (ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_TEXTREL_64)) | |
7ba29e2a NC |
1815 | continue; /* Can't delete this reloc. */ |
1816 | ||
1817 | /* Get the section contents. */ | |
1818 | if (contents == NULL) | |
1819 | { | |
1820 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
1821 | contents = elf_section_data (sec)->this_hdr.contents; | |
1822 | else | |
1823 | { | |
1824 | contents = (bfd_byte *) bfd_malloc (sec->size); | |
1825 | if (contents == NULL) | |
1826 | goto error_return; | |
1827 | free_contents = contents; | |
1828 | ||
1829 | if (!bfd_get_section_contents (abfd, sec, contents, | |
1830 | (file_ptr) 0, sec->size)) | |
1831 | goto error_return; | |
07d6d2b8 | 1832 | elf_section_data (sec)->this_hdr.contents = contents; |
7ba29e2a NC |
1833 | } |
1834 | } | |
1835 | ||
1836 | /* Get the value of the symbol referred to by the reloc. */ | |
1837 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1838 | { | |
1839 | /* A local symbol. */ | |
7ba29e2a NC |
1840 | asection *sym_sec; |
1841 | ||
1842 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
07d6d2b8 | 1843 | if (isym->st_shndx == SHN_UNDEF) |
7ba29e2a NC |
1844 | sym_sec = bfd_und_section_ptr; |
1845 | else if (isym->st_shndx == SHN_ABS) | |
1846 | sym_sec = bfd_abs_section_ptr; | |
1847 | else if (isym->st_shndx == SHN_COMMON) | |
1848 | sym_sec = bfd_com_section_ptr; | |
1849 | else | |
1850 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1851 | ||
1852 | symval = _bfd_elf_rela_local_sym (abfd, isym, &sym_sec, irel); | |
1853 | } | |
1854 | else | |
1855 | { | |
1856 | unsigned long indx; | |
1857 | struct elf_link_hash_entry *h; | |
1858 | ||
1859 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
1860 | h = elf_sym_hashes (abfd)[indx]; | |
1861 | BFD_ASSERT (h != NULL); | |
1862 | ||
07d6d2b8 | 1863 | if (h->root.type != bfd_link_hash_defined |
7ba29e2a NC |
1864 | && h->root.type != bfd_link_hash_defweak) |
1865 | /* This appears to be a reference to an undefined | |
1866 | symbol. Just ignore it--it will be caught by the | |
1867 | regular reloc processing. */ | |
1868 | continue; | |
1869 | ||
1870 | symval = (h->root.u.def.value | |
1871 | + h->root.u.def.section->output_section->vma | |
1872 | + h->root.u.def.section->output_offset); | |
1873 | } | |
1874 | ||
1875 | /* If this is a PC-relative reloc, subtract the instr offset from | |
07d6d2b8 | 1876 | the symbol value. */ |
7ba29e2a NC |
1877 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MICROBLAZE_64_PCREL) |
1878 | { | |
1879 | symval = symval + irel->r_addend | |
1880 | - (irel->r_offset | |
1881 | + sec->output_section->vma | |
1882 | + sec->output_offset); | |
07d6d2b8 | 1883 | } |
3f0a5f17 ME |
1884 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_MICROBLAZE_TEXTREL_64) |
1885 | { | |
1886 | symval = symval + irel->r_addend - (sec->output_section->vma); | |
1887 | } | |
7ba29e2a NC |
1888 | else |
1889 | symval += irel->r_addend; | |
1890 | ||
1891 | if ((symval & 0xffff8000) == 0 | |
1892 | || (symval & 0xffff8000) == 0xffff8000) | |
1893 | { | |
07d6d2b8 | 1894 | /* We can delete this instruction. */ |
9751574e AM |
1895 | sdata->relax[sdata->relax_count].addr = irel->r_offset; |
1896 | sdata->relax[sdata->relax_count].size = INST_WORD_SIZE; | |
1897 | sdata->relax_count++; | |
7ba29e2a NC |
1898 | |
1899 | /* Rewrite relocation type. */ | |
07d6d2b8 | 1900 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) |
7ba29e2a NC |
1901 | { |
1902 | case R_MICROBLAZE_64_PCREL: | |
1903 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
07d6d2b8 | 1904 | (int) R_MICROBLAZE_32_PCREL_LO); |
7ba29e2a NC |
1905 | break; |
1906 | case R_MICROBLAZE_64: | |
07d6d2b8 AM |
1907 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
1908 | (int) R_MICROBLAZE_32_LO); | |
7ba29e2a | 1909 | break; |
3f0a5f17 ME |
1910 | case R_MICROBLAZE_TEXTREL_64: |
1911 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1912 | (int) R_MICROBLAZE_TEXTREL_32_LO); | |
1913 | break; | |
7ba29e2a NC |
1914 | default: |
1915 | /* Cannot happen. */ | |
0a1b45a2 | 1916 | BFD_ASSERT (false); |
07d6d2b8 AM |
1917 | } |
1918 | } | |
7ba29e2a NC |
1919 | } /* Loop through all relocations. */ |
1920 | ||
1921 | /* Loop through the relocs again, and see if anything needs to change. */ | |
9751574e | 1922 | if (sdata->relax_count > 0) |
7ba29e2a NC |
1923 | { |
1924 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
1925 | rel_count = 0; | |
9751574e | 1926 | sdata->relax[sdata->relax_count].addr = sec->size; |
7ba29e2a NC |
1927 | |
1928 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
07d6d2b8 | 1929 | { |
7ba29e2a NC |
1930 | bfd_vma nraddr; |
1931 | ||
07d6d2b8 | 1932 | /* Get the new reloc address. */ |
886e427f | 1933 | nraddr = irel->r_offset - calc_fixup (irel->r_offset, 0, sec); |
07d6d2b8 | 1934 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) |
7ba29e2a NC |
1935 | { |
1936 | default: | |
1937 | break; | |
1938 | case R_MICROBLAZE_64_PCREL: | |
1939 | break; | |
3f0a5f17 ME |
1940 | case R_MICROBLAZE_TEXTREL_64: |
1941 | case R_MICROBLAZE_TEXTREL_32_LO: | |
7ba29e2a NC |
1942 | case R_MICROBLAZE_64: |
1943 | case R_MICROBLAZE_32_LO: | |
1944 | /* If this reloc is against a symbol defined in this | |
07d6d2b8 AM |
1945 | section, we must check the addend to see it will put the value in |
1946 | range to be adjusted, and hence must be changed. */ | |
7ba29e2a | 1947 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
07d6d2b8 | 1948 | { |
7ba29e2a NC |
1949 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
1950 | /* Only handle relocs against .text. */ | |
1951 | if (isym->st_shndx == shndx | |
1952 | && ELF32_ST_TYPE (isym->st_info) == STT_SECTION) | |
886e427f | 1953 | irel->r_addend -= calc_fixup (irel->r_addend, 0, sec); |
07d6d2b8 | 1954 | } |
7ba29e2a NC |
1955 | break; |
1956 | case R_MICROBLAZE_NONE: | |
1957 | { | |
07d6d2b8 AM |
1958 | /* This was a PC-relative instruction that was |
1959 | completely resolved. */ | |
9751574e | 1960 | size_t sfix, efix; |
07d6d2b8 AM |
1961 | bfd_vma target_address; |
1962 | target_address = irel->r_addend + irel->r_offset; | |
1963 | sfix = calc_fixup (irel->r_offset, 0, sec); | |
1964 | efix = calc_fixup (target_address, 0, sec); | |
1965 | irel->r_addend -= (efix - sfix); | |
1966 | /* Should use HOWTO. */ | |
1967 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset, | |
1968 | irel->r_addend); | |
7ba29e2a NC |
1969 | } |
1970 | break; | |
1971 | case R_MICROBLAZE_64_NONE: | |
1972 | { | |
07d6d2b8 AM |
1973 | /* This was a PC-relative 64-bit instruction that was |
1974 | completely resolved. */ | |
9751574e | 1975 | size_t sfix, efix; |
07d6d2b8 | 1976 | bfd_vma target_address; |
7ba29e2a | 1977 | target_address = irel->r_addend + irel->r_offset + INST_WORD_SIZE; |
886e427f ME |
1978 | sfix = calc_fixup (irel->r_offset + INST_WORD_SIZE, 0, sec); |
1979 | efix = calc_fixup (target_address, 0, sec); | |
7ba29e2a | 1980 | irel->r_addend -= (efix - sfix); |
f23200ad | 1981 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset |
07d6d2b8 | 1982 | + INST_WORD_SIZE, irel->r_addend); |
7ba29e2a NC |
1983 | } |
1984 | break; | |
1985 | } | |
07d6d2b8 AM |
1986 | irel->r_offset = nraddr; |
1987 | } /* Change all relocs in this section. */ | |
7ba29e2a NC |
1988 | |
1989 | /* Look through all other sections. */ | |
1990 | for (o = abfd->sections; o != NULL; o = o->next) | |
07d6d2b8 AM |
1991 | { |
1992 | Elf_Internal_Rela *irelocs; | |
1993 | Elf_Internal_Rela *irelscan, *irelscanend; | |
1994 | bfd_byte *ocontents; | |
1995 | ||
1996 | if (o == sec | |
1997 | || (o->flags & SEC_RELOC) == 0 | |
1998 | || o->reloc_count == 0) | |
1999 | continue; | |
2000 | ||
2001 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
2002 | FALSE, we should free them, if we are permitted to. */ | |
2003 | ||
0a1b45a2 | 2004 | irelocs = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, true); |
07d6d2b8 AM |
2005 | if (irelocs == NULL) |
2006 | goto error_return; | |
2007 | ||
2008 | ocontents = NULL; | |
2009 | irelscanend = irelocs + o->reloc_count; | |
2010 | for (irelscan = irelocs; irelscan < irelscanend; irelscan++) | |
2011 | { | |
2012 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32) | |
2013 | { | |
2014 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2015 | ||
2016 | /* Look at the reloc only if the value has been resolved. */ | |
2017 | if (isym->st_shndx == shndx | |
2018 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2019 | { | |
2020 | if (ocontents == NULL) | |
2021 | { | |
2022 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2023 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2024 | else | |
2025 | { | |
2026 | /* We always cache the section contents. | |
2027 | Perhaps, if info->keep_memory is FALSE, we | |
2028 | should free them, if we are permitted to. */ | |
2029 | if (o->rawsize == 0) | |
2030 | o->rawsize = o->size; | |
2031 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2032 | if (ocontents == NULL) | |
2033 | goto error_return; | |
2034 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2035 | (file_ptr) 0, | |
7ba29e2a | 2036 | o->rawsize)) |
07d6d2b8 AM |
2037 | goto error_return; |
2038 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2039 | } | |
7ba29e2a | 2040 | |
07d6d2b8 | 2041 | } |
886e427f | 2042 | irelscan->r_addend -= calc_fixup (irelscan->r_addend, 0, sec); |
07d6d2b8 | 2043 | } |
7ba29e2a NC |
2044 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_SYM_OP_SYM) |
2045 | { | |
2046 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2047 | ||
2048 | /* Look at the reloc only if the value has been resolved. */ | |
2049 | if (ocontents == NULL) | |
2050 | { | |
2051 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2052 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2053 | else | |
2054 | { | |
2055 | /* We always cache the section contents. | |
2056 | Perhaps, if info->keep_memory is FALSE, we | |
2057 | should free them, if we are permitted to. */ | |
2058 | ||
2059 | if (o->rawsize == 0) | |
2060 | o->rawsize = o->size; | |
2061 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2062 | if (ocontents == NULL) | |
2063 | goto error_return; | |
2064 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2065 | (file_ptr) 0, | |
2066 | o->rawsize)) | |
2067 | goto error_return; | |
2068 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2069 | } | |
2070 | } | |
2071 | irelscan->r_addend -= calc_fixup (irel->r_addend | |
2072 | + isym->st_value, | |
886e427f | 2073 | 0, |
7ba29e2a NC |
2074 | sec); |
2075 | } | |
2076 | } | |
2077 | else if ((ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_PCREL_LO) | |
3f0a5f17 ME |
2078 | || (ELF32_R_TYPE (irelscan->r_info) |
2079 | == (int) R_MICROBLAZE_32_LO) | |
2080 | || (ELF32_R_TYPE (irelscan->r_info) | |
2081 | == (int) R_MICROBLAZE_TEXTREL_32_LO)) | |
7ba29e2a NC |
2082 | { |
2083 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2084 | ||
2085 | /* Look at the reloc only if the value has been resolved. */ | |
2086 | if (isym->st_shndx == shndx | |
2087 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2088 | { | |
2089 | bfd_vma immediate; | |
2090 | bfd_vma target_address; | |
2091 | ||
2092 | if (ocontents == NULL) | |
2093 | { | |
2094 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2095 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2096 | else | |
2097 | { | |
2098 | /* We always cache the section contents. | |
2099 | Perhaps, if info->keep_memory is FALSE, we | |
2100 | should free them, if we are permitted to. */ | |
2101 | if (o->rawsize == 0) | |
2102 | o->rawsize = o->size; | |
2103 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2104 | if (ocontents == NULL) | |
2105 | goto error_return; | |
2106 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2107 | (file_ptr) 0, | |
2108 | o->rawsize)) | |
2109 | goto error_return; | |
2110 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2111 | } | |
2112 | } | |
2113 | ||
f23200ad ME |
2114 | unsigned long instr = bfd_get_32 (abfd, ocontents + irelscan->r_offset); |
2115 | immediate = instr & 0x0000ffff; | |
7ba29e2a | 2116 | target_address = immediate; |
886e427f | 2117 | offset = calc_fixup (target_address, 0, sec); |
7ba29e2a NC |
2118 | immediate -= offset; |
2119 | irelscan->r_addend -= offset; | |
07d6d2b8 AM |
2120 | microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset, |
2121 | irelscan->r_addend); | |
7ba29e2a NC |
2122 | } |
2123 | } | |
2124 | ||
3f0a5f17 ME |
2125 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64 |
2126 | || (ELF32_R_TYPE (irelscan->r_info) | |
2127 | == (int) R_MICROBLAZE_TEXTREL_64)) | |
7ba29e2a NC |
2128 | { |
2129 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2130 | ||
2131 | /* Look at the reloc only if the value has been resolved. */ | |
2132 | if (isym->st_shndx == shndx | |
2133 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2134 | { | |
7ba29e2a NC |
2135 | if (ocontents == NULL) |
2136 | { | |
2137 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2138 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2139 | else | |
2140 | { | |
2141 | /* We always cache the section contents. | |
2142 | Perhaps, if info->keep_memory is FALSE, we | |
2143 | should free them, if we are permitted to. */ | |
2144 | ||
2145 | if (o->rawsize == 0) | |
2146 | o->rawsize = o->size; | |
2147 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2148 | if (ocontents == NULL) | |
2149 | goto error_return; | |
2150 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2151 | (file_ptr) 0, | |
2152 | o->rawsize)) | |
2153 | goto error_return; | |
2154 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2155 | } | |
2156 | } | |
886e427f | 2157 | offset = calc_fixup (irelscan->r_addend, 0, sec); |
7ba29e2a NC |
2158 | irelscan->r_addend -= offset; |
2159 | } | |
2160 | } | |
2161 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64_PCREL) | |
2162 | { | |
2163 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2164 | ||
2165 | /* Look at the reloc only if the value has been resolved. */ | |
2166 | if (isym->st_shndx == shndx | |
2167 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2168 | { | |
2169 | bfd_vma immediate; | |
2170 | bfd_vma target_address; | |
2171 | ||
2172 | if (ocontents == NULL) | |
2173 | { | |
2174 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2175 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2176 | else | |
2177 | { | |
2178 | /* We always cache the section contents. | |
2179 | Perhaps, if info->keep_memory is FALSE, we | |
2180 | should free them, if we are permitted to. */ | |
2181 | if (o->rawsize == 0) | |
2182 | o->rawsize = o->size; | |
2183 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2184 | if (ocontents == NULL) | |
2185 | goto error_return; | |
2186 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2187 | (file_ptr) 0, | |
2188 | o->rawsize)) | |
2189 | goto error_return; | |
2190 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2191 | } | |
2192 | } | |
07d6d2b8 AM |
2193 | unsigned long instr_hi = bfd_get_32 (abfd, ocontents |
2194 | + irelscan->r_offset); | |
2195 | unsigned long instr_lo = bfd_get_32 (abfd, ocontents | |
2196 | + irelscan->r_offset | |
2197 | + INST_WORD_SIZE); | |
2198 | immediate = (instr_hi & 0x0000ffff) << 16; | |
2199 | immediate |= (instr_lo & 0x0000ffff); | |
7ba29e2a | 2200 | target_address = immediate; |
886e427f | 2201 | offset = calc_fixup (target_address, 0, sec); |
7ba29e2a NC |
2202 | immediate -= offset; |
2203 | irelscan->r_addend -= offset; | |
07d6d2b8 AM |
2204 | microblaze_bfd_write_imm_value_64 (abfd, ocontents |
2205 | + irelscan->r_offset, immediate); | |
7ba29e2a NC |
2206 | } |
2207 | } | |
07d6d2b8 AM |
2208 | } |
2209 | } | |
7ba29e2a NC |
2210 | |
2211 | /* Adjust the local symbols defined in this section. */ | |
2212 | isymend = isymbuf + symtab_hdr->sh_info; | |
2213 | for (isym = isymbuf; isym < isymend; isym++) | |
07d6d2b8 AM |
2214 | { |
2215 | if (isym->st_shndx == shndx) | |
2216 | { | |
2217 | isym->st_value -= calc_fixup (isym->st_value, 0, sec); | |
2218 | if (isym->st_size) | |
2219 | isym->st_size -= calc_fixup (isym->st_value, isym->st_size, sec); | |
2220 | } | |
2221 | } | |
7ba29e2a NC |
2222 | |
2223 | /* Now adjust the global symbols defined in this section. */ | |
2224 | isym = isymbuf + symtab_hdr->sh_info; | |
886e427f ME |
2225 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)) - symtab_hdr->sh_info; |
2226 | for (sym_index = 0; sym_index < symcount; sym_index++) | |
07d6d2b8 AM |
2227 | { |
2228 | sym_hash = elf_sym_hashes (abfd)[sym_index]; | |
2229 | if ((sym_hash->root.type == bfd_link_hash_defined | |
2230 | || sym_hash->root.type == bfd_link_hash_defweak) | |
2231 | && sym_hash->root.u.def.section == sec) | |
2232 | { | |
2233 | sym_hash->root.u.def.value -= calc_fixup (sym_hash->root.u.def.value, | |
2234 | 0, sec); | |
2235 | if (sym_hash->size) | |
2236 | sym_hash->size -= calc_fixup (sym_hash->root.u.def.value, | |
2237 | sym_hash->size, sec); | |
2238 | } | |
2239 | } | |
7ba29e2a NC |
2240 | |
2241 | /* Physically move the code and change the cooked size. */ | |
9751574e AM |
2242 | dest = sdata->relax[0].addr; |
2243 | for (i = 0; i < sdata->relax_count; i++) | |
07d6d2b8 | 2244 | { |
9751574e AM |
2245 | size_t len; |
2246 | src = sdata->relax[i].addr + sdata->relax[i].size; | |
2247 | len = (sdata->relax[i+1].addr - sdata->relax[i].addr | |
2248 | - sdata->relax[i].size); | |
7ba29e2a | 2249 | |
07d6d2b8 | 2250 | memmove (contents + dest, contents + src, len); |
9751574e | 2251 | sec->size -= sdata->relax[i].size; |
07d6d2b8 AM |
2252 | dest += len; |
2253 | } | |
7ba29e2a NC |
2254 | |
2255 | elf_section_data (sec)->relocs = internal_relocs; | |
2256 | free_relocs = NULL; | |
2257 | ||
2258 | elf_section_data (sec)->this_hdr.contents = contents; | |
2259 | free_contents = NULL; | |
2260 | ||
2261 | symtab_hdr->contents = (bfd_byte *) isymbuf; | |
2262 | } | |
2263 | ||
c9594989 AM |
2264 | free (free_relocs); |
2265 | free_relocs = NULL; | |
7ba29e2a NC |
2266 | |
2267 | if (free_contents != NULL) | |
2268 | { | |
2269 | if (!link_info->keep_memory) | |
2270 | free (free_contents); | |
2271 | else | |
2272 | /* Cache the section contents for elf_link_input_bfd. */ | |
2273 | elf_section_data (sec)->this_hdr.contents = contents; | |
2274 | free_contents = NULL; | |
2275 | } | |
2276 | ||
9751574e | 2277 | if (sdata->relax_count == 0) |
7ba29e2a | 2278 | { |
0a1b45a2 | 2279 | *again = false; |
9751574e AM |
2280 | free (sdata->relax); |
2281 | sdata->relax = NULL; | |
7ba29e2a | 2282 | } |
f23200ad | 2283 | else |
0a1b45a2 AM |
2284 | *again = true; |
2285 | return true; | |
7ba29e2a NC |
2286 | |
2287 | error_return: | |
c9594989 AM |
2288 | free (free_relocs); |
2289 | free (free_contents); | |
9751574e AM |
2290 | free (sdata->relax); |
2291 | sdata->relax = NULL; | |
2292 | sdata->relax_count = 0; | |
0a1b45a2 | 2293 | return false; |
7ba29e2a NC |
2294 | } |
2295 | ||
2296 | /* Return the section that should be marked against GC for a given | |
2297 | relocation. */ | |
2298 | ||
2299 | static asection * | |
2300 | microblaze_elf_gc_mark_hook (asection *sec, | |
fb34365b | 2301 | struct bfd_link_info * info, |
07d6d2b8 AM |
2302 | Elf_Internal_Rela * rel, |
2303 | struct elf_link_hash_entry * h, | |
2304 | Elf_Internal_Sym * sym) | |
7ba29e2a NC |
2305 | { |
2306 | if (h != NULL) | |
fb34365b AM |
2307 | switch (ELF32_R_TYPE (rel->r_info)) |
2308 | { | |
2309 | case R_MICROBLAZE_GNU_VTINHERIT: | |
2310 | case R_MICROBLAZE_GNU_VTENTRY: | |
2311 | return NULL; | |
2312 | } | |
2313 | ||
2314 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
7ba29e2a NC |
2315 | } |
2316 | ||
7ba29e2a NC |
2317 | /* PIC support. */ |
2318 | ||
2319 | #define PLT_ENTRY_SIZE 16 | |
2320 | ||
07d6d2b8 AM |
2321 | #define PLT_ENTRY_WORD_0 0xb0000000 /* "imm 0". */ |
2322 | #define PLT_ENTRY_WORD_1 0xe9940000 /* "lwi r12,r20,0" - relocated to lwi r12,r20,func@GOT. */ | |
2323 | #define PLT_ENTRY_WORD_1_NOPIC 0xe9800000 /* "lwi r12,r0,0" - non-PIC object. */ | |
2324 | #define PLT_ENTRY_WORD_2 0x98186000 /* "brad r12". */ | |
2325 | #define PLT_ENTRY_WORD_3 0x80000000 /* "nop". */ | |
7ba29e2a | 2326 | |
0a1b45a2 | 2327 | static bool |
69b06cc8 ME |
2328 | update_local_sym_info (bfd *abfd, |
2329 | Elf_Internal_Shdr *symtab_hdr, | |
2330 | unsigned long r_symndx, | |
2331 | unsigned int tls_type) | |
2332 | { | |
2333 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); | |
2334 | unsigned char *local_got_tls_masks; | |
2335 | ||
2336 | if (local_got_refcounts == NULL) | |
2337 | { | |
2338 | bfd_size_type size = symtab_hdr->sh_info; | |
2339 | ||
2340 | size *= (sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks)); | |
2341 | local_got_refcounts = bfd_zalloc (abfd, size); | |
2342 | if (local_got_refcounts == NULL) | |
0a1b45a2 | 2343 | return false; |
69b06cc8 ME |
2344 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
2345 | } | |
2346 | ||
2347 | local_got_tls_masks = | |
07d6d2b8 | 2348 | (unsigned char *) (local_got_refcounts + symtab_hdr->sh_info); |
69b06cc8 ME |
2349 | local_got_tls_masks[r_symndx] |= tls_type; |
2350 | local_got_refcounts[r_symndx] += 1; | |
2351 | ||
0a1b45a2 | 2352 | return true; |
69b06cc8 | 2353 | } |
7ba29e2a NC |
2354 | /* Look through the relocs for a section during the first phase. */ |
2355 | ||
0a1b45a2 | 2356 | static bool |
7ba29e2a NC |
2357 | microblaze_elf_check_relocs (bfd * abfd, |
2358 | struct bfd_link_info * info, | |
07d6d2b8 | 2359 | asection * sec, |
7ba29e2a NC |
2360 | const Elf_Internal_Rela * relocs) |
2361 | { | |
07d6d2b8 | 2362 | Elf_Internal_Shdr * symtab_hdr; |
7ba29e2a | 2363 | struct elf_link_hash_entry ** sym_hashes; |
07d6d2b8 AM |
2364 | const Elf_Internal_Rela * rel; |
2365 | const Elf_Internal_Rela * rel_end; | |
7ba29e2a | 2366 | struct elf32_mb_link_hash_table *htab; |
7ba29e2a NC |
2367 | asection *sreloc = NULL; |
2368 | ||
0e1862bb | 2369 | if (bfd_link_relocatable (info)) |
0a1b45a2 | 2370 | return true; |
7ba29e2a NC |
2371 | |
2372 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 | 2373 | if (htab == NULL) |
0a1b45a2 | 2374 | return false; |
4dfe6ac6 | 2375 | |
7ba29e2a NC |
2376 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; |
2377 | sym_hashes = elf_sym_hashes (abfd); | |
7ba29e2a NC |
2378 | |
2379 | rel_end = relocs + sec->reloc_count; | |
2380 | ||
2381 | for (rel = relocs; rel < rel_end; rel++) | |
2382 | { | |
2383 | unsigned int r_type; | |
2384 | struct elf_link_hash_entry * h; | |
2385 | unsigned long r_symndx; | |
69b06cc8 | 2386 | unsigned char tls_type = 0; |
7ba29e2a NC |
2387 | |
2388 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2389 | r_type = ELF32_R_TYPE (rel->r_info); | |
2390 | ||
2391 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 | 2392 | h = NULL; |
7ba29e2a | 2393 | else |
81fbe831 AM |
2394 | { |
2395 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
b7213666 L |
2396 | while (h->root.type == bfd_link_hash_indirect |
2397 | || h->root.type == bfd_link_hash_warning) | |
2398 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 | 2399 | } |
7ba29e2a NC |
2400 | |
2401 | switch (r_type) | |
07d6d2b8 | 2402 | { |
7ba29e2a NC |
2403 | /* This relocation describes the C++ object vtable hierarchy. |
2404 | Reconstruct it for later use during GC. */ | |
07d6d2b8 AM |
2405 | case R_MICROBLAZE_GNU_VTINHERIT: |
2406 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
0a1b45a2 | 2407 | return false; |
07d6d2b8 | 2408 | break; |
7ba29e2a NC |
2409 | |
2410 | /* This relocation describes which C++ vtable entries are actually | |
2411 | used. Record for later use during GC. */ | |
07d6d2b8 AM |
2412 | case R_MICROBLAZE_GNU_VTENTRY: |
2413 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
0a1b45a2 | 2414 | return false; |
07d6d2b8 | 2415 | break; |
7ba29e2a NC |
2416 | |
2417 | /* This relocation requires .plt entry. */ | |
07d6d2b8 AM |
2418 | case R_MICROBLAZE_PLT_64: |
2419 | if (h != NULL) | |
7ba29e2a NC |
2420 | { |
2421 | h->needs_plt = 1; | |
2422 | h->plt.refcount += 1; | |
2423 | } | |
07d6d2b8 | 2424 | break; |
7ba29e2a NC |
2425 | |
2426 | /* This relocation requires .got entry. */ | |
07d6d2b8 AM |
2427 | case R_MICROBLAZE_TLSGD: |
2428 | tls_type |= (TLS_TLS | TLS_GD); | |
2429 | goto dogottls; | |
2430 | case R_MICROBLAZE_TLSLD: | |
2431 | tls_type |= (TLS_TLS | TLS_LD); | |
1a0670f3 | 2432 | /* Fall through. */ |
07d6d2b8 AM |
2433 | dogottls: |
2434 | sec->has_tls_reloc = 1; | |
1a0670f3 | 2435 | /* Fall through. */ |
07d6d2b8 AM |
2436 | case R_MICROBLAZE_GOT_64: |
2437 | if (htab->elf.sgot == NULL) | |
2438 | { | |
2439 | if (htab->elf.dynobj == NULL) | |
2440 | htab->elf.dynobj = abfd; | |
2441 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
0a1b45a2 | 2442 | return false; |
07d6d2b8 AM |
2443 | } |
2444 | if (h != NULL) | |
7ba29e2a NC |
2445 | { |
2446 | h->got.refcount += 1; | |
69b06cc8 | 2447 | elf32_mb_hash_entry (h)->tls_mask |= tls_type; |
7ba29e2a | 2448 | } |
07d6d2b8 | 2449 | else |
7ba29e2a | 2450 | { |
69b06cc8 | 2451 | if (! update_local_sym_info(abfd, symtab_hdr, r_symndx, tls_type) ) |
0a1b45a2 | 2452 | return false; |
7ba29e2a | 2453 | } |
07d6d2b8 | 2454 | break; |
7ba29e2a | 2455 | |
206c9c79 AM |
2456 | case R_MICROBLAZE_GOTOFF_64: |
2457 | case R_MICROBLAZE_GOTOFF_32: | |
2458 | if (htab->elf.sgot == NULL) | |
2459 | { | |
2460 | if (htab->elf.dynobj == NULL) | |
2461 | htab->elf.dynobj = abfd; | |
2462 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
0a1b45a2 | 2463 | return false; |
206c9c79 AM |
2464 | } |
2465 | break; | |
2466 | ||
07d6d2b8 AM |
2467 | case R_MICROBLAZE_64: |
2468 | case R_MICROBLAZE_64_PCREL: | |
2469 | case R_MICROBLAZE_32: | |
2470 | { | |
2471 | if (h != NULL && !bfd_link_pic (info)) | |
7ba29e2a NC |
2472 | { |
2473 | /* we may need a copy reloc. */ | |
2474 | h->non_got_ref = 1; | |
2475 | ||
2476 | /* we may also need a .plt entry. */ | |
2477 | h->plt.refcount += 1; | |
2478 | if (ELF32_R_TYPE (rel->r_info) != R_MICROBLAZE_64_PCREL) | |
2479 | h->pointer_equality_needed = 1; | |
2480 | } | |
2481 | ||
2482 | ||
2483 | /* If we are creating a shared library, and this is a reloc | |
2484 | against a global symbol, or a non PC relative reloc | |
2485 | against a local symbol, then we need to copy the reloc | |
2486 | into the shared library. However, if we are linking with | |
2487 | -Bsymbolic, we do not need to copy a reloc against a | |
2488 | global symbol which is defined in an object we are | |
2489 | including in the link (i.e., DEF_REGULAR is set). At | |
2490 | this point we have not seen all the input files, so it is | |
2491 | possible that DEF_REGULAR is not set now but will be set | |
2492 | later (it is never cleared). In case of a weak definition, | |
2493 | DEF_REGULAR may be cleared later by a strong definition in | |
2494 | a shared library. We account for that possibility below by | |
2495 | storing information in the relocs_copied field of the hash | |
2496 | table entry. A similar situation occurs when creating | |
2497 | shared libraries and symbol visibility changes render the | |
2498 | symbol local. | |
2499 | ||
2500 | If on the other hand, we are creating an executable, we | |
2501 | may need to keep relocations for symbols satisfied by a | |
2502 | dynamic library if we manage to avoid copy relocs for the | |
2503 | symbol. */ | |
2504 | ||
07d6d2b8 AM |
2505 | if ((bfd_link_pic (info) |
2506 | && (sec->flags & SEC_ALLOC) != 0 | |
2507 | && (r_type != R_MICROBLAZE_64_PCREL | |
2508 | || (h != NULL | |
7ba29e2a NC |
2509 | && (! info->symbolic |
2510 | || h->root.type == bfd_link_hash_defweak | |
2511 | || !h->def_regular)))) | |
07d6d2b8 AM |
2512 | || (!bfd_link_pic (info) |
2513 | && (sec->flags & SEC_ALLOC) != 0 | |
2514 | && h != NULL | |
2515 | && (h->root.type == bfd_link_hash_defweak | |
2516 | || !h->def_regular))) | |
2517 | { | |
2518 | struct elf_dyn_relocs *p; | |
2519 | struct elf_dyn_relocs **head; | |
2520 | ||
2521 | /* When creating a shared object, we must copy these | |
2522 | relocs into the output file. We create a reloc | |
2523 | section in dynobj and make room for the reloc. */ | |
7ba29e2a NC |
2524 | |
2525 | if (sreloc == NULL) | |
2526 | { | |
7ba29e2a | 2527 | bfd *dynobj; |
7ba29e2a NC |
2528 | |
2529 | if (htab->elf.dynobj == NULL) | |
2530 | htab->elf.dynobj = abfd; | |
2531 | dynobj = htab->elf.dynobj; | |
2532 | ||
69b06cc8 ME |
2533 | sreloc = _bfd_elf_make_dynamic_reloc_section (sec, dynobj, |
2534 | 2, abfd, 1); | |
7ba29e2a | 2535 | if (sreloc == NULL) |
0a1b45a2 | 2536 | return false; |
7ba29e2a NC |
2537 | } |
2538 | ||
2539 | /* If this is a global symbol, we count the number of | |
2540 | relocations we need for this symbol. */ | |
2541 | if (h != NULL) | |
190eb1dd | 2542 | head = &h->dyn_relocs; |
7ba29e2a NC |
2543 | else |
2544 | { | |
2545 | /* Track dynamic relocs needed for local syms too. | |
2546 | We really need local syms available to do this | |
2547 | easily. Oh well. */ | |
2548 | ||
2549 | asection *s; | |
2550 | Elf_Internal_Sym *isym; | |
918d9742 | 2551 | void *vpp; |
7ba29e2a | 2552 | |
f1dfbfdb | 2553 | isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, |
7ba29e2a NC |
2554 | abfd, r_symndx); |
2555 | if (isym == NULL) | |
0a1b45a2 | 2556 | return false; |
7ba29e2a NC |
2557 | |
2558 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2559 | if (s == NULL) | |
0a1b45a2 | 2560 | return false; |
7ba29e2a | 2561 | |
918d9742 | 2562 | vpp = &elf_section_data (s)->local_dynrel; |
3bf083ed | 2563 | head = (struct elf_dyn_relocs **) vpp; |
7ba29e2a NC |
2564 | } |
2565 | ||
2566 | p = *head; | |
2567 | if (p == NULL || p->sec != sec) | |
2568 | { | |
986f0783 | 2569 | size_t amt = sizeof *p; |
3bf083ed | 2570 | p = ((struct elf_dyn_relocs *) |
7ba29e2a NC |
2571 | bfd_alloc (htab->elf.dynobj, amt)); |
2572 | if (p == NULL) | |
0a1b45a2 | 2573 | return false; |
7ba29e2a NC |
2574 | p->next = *head; |
2575 | *head = p; | |
2576 | p->sec = sec; | |
2577 | p->count = 0; | |
2578 | p->pc_count = 0; | |
2579 | } | |
2580 | ||
2581 | p->count += 1; | |
2582 | if (r_type == R_MICROBLAZE_64_PCREL) | |
2583 | p->pc_count += 1; | |
2584 | } | |
07d6d2b8 AM |
2585 | } |
2586 | break; | |
2587 | } | |
7ba29e2a NC |
2588 | } |
2589 | ||
0a1b45a2 | 2590 | return true; |
7ba29e2a NC |
2591 | } |
2592 | ||
7ba29e2a NC |
2593 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
2594 | ||
2595 | static void | |
2596 | microblaze_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
2597 | struct elf_link_hash_entry *dir, | |
2598 | struct elf_link_hash_entry *ind) | |
2599 | { | |
2600 | struct elf32_mb_link_hash_entry *edir, *eind; | |
2601 | ||
2602 | edir = (struct elf32_mb_link_hash_entry *) dir; | |
2603 | eind = (struct elf32_mb_link_hash_entry *) ind; | |
2604 | ||
69b06cc8 ME |
2605 | edir->tls_mask |= eind->tls_mask; |
2606 | ||
7ba29e2a NC |
2607 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
2608 | } | |
2609 | ||
0a1b45a2 | 2610 | static bool |
7ba29e2a NC |
2611 | microblaze_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
2612 | struct elf_link_hash_entry *h) | |
2613 | { | |
2614 | struct elf32_mb_link_hash_table *htab; | |
5474d94f | 2615 | asection *s, *srel; |
7ba29e2a | 2616 | unsigned int power_of_two; |
7ba29e2a NC |
2617 | |
2618 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 | 2619 | if (htab == NULL) |
0a1b45a2 | 2620 | return false; |
7ba29e2a NC |
2621 | |
2622 | /* If this is a function, put it in the procedure linkage table. We | |
2623 | will fill in the contents of the procedure linkage table later, | |
2624 | when we know the address of the .got section. */ | |
2625 | if (h->type == STT_FUNC | |
2626 | || h->needs_plt) | |
2627 | { | |
2628 | if (h->plt.refcount <= 0 | |
2629 | || SYMBOL_CALLS_LOCAL (info, h) | |
2630 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2631 | && h->root.type == bfd_link_hash_undefweak)) | |
2632 | { | |
2633 | /* This case can occur if we saw a PLT reloc in an input | |
2634 | file, but the symbol was never referred to by a dynamic | |
2635 | object, or if all references were garbage collected. In | |
2636 | such a case, we don't actually need to build a procedure | |
2637 | linkage table, and we can just do a PC32 reloc instead. */ | |
2638 | h->plt.offset = (bfd_vma) -1; | |
2639 | h->needs_plt = 0; | |
2640 | } | |
2641 | ||
0a1b45a2 | 2642 | return true; |
7ba29e2a NC |
2643 | } |
2644 | else | |
2645 | /* It's possible that we incorrectly decided a .plt reloc was | |
2646 | needed for an R_MICROBLAZE_64_PCREL reloc to a non-function sym in | |
2647 | check_relocs. We can't decide accurately between function and | |
2648 | non-function syms in check-relocs; Objects loaded later in | |
2649 | the link may change h->type. So fix it now. */ | |
2650 | h->plt.offset = (bfd_vma) -1; | |
2651 | ||
2652 | /* If this is a weak symbol, and there is a real definition, the | |
2653 | processor independent code will have arranged for us to see the | |
2654 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2655 | if (h->is_weakalias) |
7ba29e2a | 2656 | { |
60d67dc8 AM |
2657 | struct elf_link_hash_entry *def = weakdef (h); |
2658 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2659 | h->root.u.def.section = def->root.u.def.section; | |
2660 | h->root.u.def.value = def->root.u.def.value; | |
0a1b45a2 | 2661 | return true; |
7ba29e2a NC |
2662 | } |
2663 | ||
2664 | /* This is a reference to a symbol defined by a dynamic object which | |
2665 | is not a function. */ | |
2666 | ||
2667 | /* If we are creating a shared library, we must presume that the | |
2668 | only references to the symbol are via the global offset table. | |
2669 | For such cases we need not do anything here; the relocations will | |
2670 | be handled correctly by relocate_section. */ | |
0e1862bb | 2671 | if (bfd_link_pic (info)) |
0a1b45a2 | 2672 | return true; |
7ba29e2a NC |
2673 | |
2674 | /* If there are no references to this symbol that do not use the | |
2675 | GOT, we don't need to generate a copy reloc. */ | |
2676 | if (!h->non_got_ref) | |
0a1b45a2 | 2677 | return true; |
7ba29e2a NC |
2678 | |
2679 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2680 | if (info->nocopyreloc) | |
2681 | { | |
2682 | h->non_got_ref = 0; | |
0a1b45a2 | 2683 | return true; |
7ba29e2a NC |
2684 | } |
2685 | ||
3bf083ed | 2686 | /* If we don't find any dynamic relocs in read-only sections, then |
7ba29e2a | 2687 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
5dbc8b37 | 2688 | if (!_bfd_elf_readonly_dynrelocs (h)) |
7ba29e2a NC |
2689 | { |
2690 | h->non_got_ref = 0; | |
0a1b45a2 | 2691 | return true; |
7ba29e2a NC |
2692 | } |
2693 | ||
2694 | /* We must allocate the symbol in our .dynbss section, which will | |
2695 | become part of the .bss section of the executable. There will be | |
2696 | an entry for this symbol in the .dynsym section. The dynamic | |
2697 | object will contain position independent code, so all references | |
2698 | from the dynamic object to this symbol will go through the global | |
2699 | offset table. The dynamic linker will use the .dynsym entry to | |
2700 | determine the address it must put in the global offset table, so | |
2701 | both the dynamic object and the regular object will refer to the | |
2702 | same memory location for the variable. */ | |
2703 | ||
2704 | /* We must generate a R_MICROBLAZE_COPY reloc to tell the dynamic linker | |
2705 | to copy the initial value out of the dynamic object and into the | |
2706 | runtime process image. */ | |
5474d94f AM |
2707 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
2708 | { | |
2709 | s = htab->elf.sdynrelro; | |
2710 | srel = htab->elf.sreldynrelro; | |
2711 | } | |
2712 | else | |
2713 | { | |
2714 | s = htab->elf.sdynbss; | |
2715 | srel = htab->elf.srelbss; | |
2716 | } | |
7ba29e2a NC |
2717 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
2718 | { | |
5474d94f | 2719 | srel->size += sizeof (Elf32_External_Rela); |
7ba29e2a NC |
2720 | h->needs_copy = 1; |
2721 | } | |
2722 | ||
2723 | /* We need to figure out the alignment required for this symbol. I | |
2724 | have no idea how ELF linkers handle this. */ | |
2725 | power_of_two = bfd_log2 (h->size); | |
2726 | if (power_of_two > 3) | |
2727 | power_of_two = 3; | |
2728 | ||
7ba29e2a | 2729 | /* Apply the required alignment. */ |
5474d94f AM |
2730 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
2731 | if (power_of_two > s->alignment_power) | |
7ba29e2a | 2732 | { |
fd361982 | 2733 | if (!bfd_set_section_alignment (s, power_of_two)) |
0a1b45a2 | 2734 | return false; |
7ba29e2a NC |
2735 | } |
2736 | ||
2737 | /* Define the symbol as being at this point in the section. */ | |
5474d94f AM |
2738 | h->root.u.def.section = s; |
2739 | h->root.u.def.value = s->size; | |
7ba29e2a NC |
2740 | |
2741 | /* Increment the section size to make room for the symbol. */ | |
5474d94f | 2742 | s->size += h->size; |
0a1b45a2 | 2743 | return true; |
7ba29e2a NC |
2744 | } |
2745 | ||
2746 | /* Allocate space in .plt, .got and associated reloc sections for | |
2747 | dynamic relocs. */ | |
2748 | ||
0a1b45a2 | 2749 | static bool |
7ba29e2a NC |
2750 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * dat) |
2751 | { | |
2752 | struct bfd_link_info *info; | |
2753 | struct elf32_mb_link_hash_table *htab; | |
2754 | struct elf32_mb_link_hash_entry *eh; | |
3bf083ed | 2755 | struct elf_dyn_relocs *p; |
7ba29e2a NC |
2756 | |
2757 | if (h->root.type == bfd_link_hash_indirect) | |
0a1b45a2 | 2758 | return true; |
7ba29e2a | 2759 | |
7ba29e2a NC |
2760 | info = (struct bfd_link_info *) dat; |
2761 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 | 2762 | if (htab == NULL) |
0a1b45a2 | 2763 | return false; |
7ba29e2a NC |
2764 | |
2765 | if (htab->elf.dynamic_sections_created | |
2766 | && h->plt.refcount > 0) | |
2767 | { | |
2768 | /* Make sure this symbol is output as a dynamic symbol. | |
2769 | Undefined weak syms won't yet be marked as dynamic. */ | |
2770 | if (h->dynindx == -1 | |
07d6d2b8 AM |
2771 | && !h->forced_local) |
2772 | { | |
2773 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 2774 | return false; |
07d6d2b8 | 2775 | } |
7ba29e2a | 2776 | |
0e1862bb | 2777 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
07d6d2b8 AM |
2778 | { |
2779 | asection *s = htab->elf.splt; | |
2780 | ||
2781 | /* The first entry in .plt is reserved. */ | |
2782 | if (s->size == 0) | |
2783 | s->size = PLT_ENTRY_SIZE; | |
2784 | ||
2785 | h->plt.offset = s->size; | |
2786 | ||
2787 | /* If this symbol is not defined in a regular file, and we are | |
2788 | not generating a shared library, then set the symbol to this | |
2789 | location in the .plt. This is required to make function | |
2790 | pointers compare as equal between the normal executable and | |
2791 | the shared library. */ | |
2792 | if (! bfd_link_pic (info) | |
2793 | && !h->def_regular) | |
2794 | { | |
2795 | h->root.u.def.section = s; | |
2796 | h->root.u.def.value = h->plt.offset; | |
2797 | } | |
2798 | ||
2799 | /* Make room for this entry. */ | |
2800 | s->size += PLT_ENTRY_SIZE; | |
2801 | ||
2802 | /* We also need to make an entry in the .got.plt section, which | |
2803 | will be placed in the .got section by the linker script. */ | |
ce558b89 | 2804 | htab->elf.sgotplt->size += 4; |
7ba29e2a | 2805 | |
07d6d2b8 AM |
2806 | /* We also need to make an entry in the .rel.plt section. */ |
2807 | htab->elf.srelplt->size += sizeof (Elf32_External_Rela); | |
2808 | } | |
7ba29e2a | 2809 | else |
07d6d2b8 AM |
2810 | { |
2811 | h->plt.offset = (bfd_vma) -1; | |
2812 | h->needs_plt = 0; | |
2813 | } | |
7ba29e2a NC |
2814 | } |
2815 | else | |
2816 | { | |
2817 | h->plt.offset = (bfd_vma) -1; | |
2818 | h->needs_plt = 0; | |
2819 | } | |
2820 | ||
69b06cc8 | 2821 | eh = (struct elf32_mb_link_hash_entry *) h; |
7ba29e2a NC |
2822 | if (h->got.refcount > 0) |
2823 | { | |
69b06cc8 | 2824 | unsigned int need; |
7ba29e2a NC |
2825 | asection *s; |
2826 | ||
2827 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 2828 | Undefined weak syms won't yet be marked as dynamic. */ |
7ba29e2a | 2829 | if (h->dynindx == -1 |
07d6d2b8 AM |
2830 | && !h->forced_local) |
2831 | { | |
2832 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 2833 | return false; |
07d6d2b8 | 2834 | } |
7ba29e2a | 2835 | |
69b06cc8 ME |
2836 | need = 0; |
2837 | if ((eh->tls_mask & TLS_TLS) != 0) | |
07d6d2b8 AM |
2838 | { |
2839 | /* Handle TLS Symbol */ | |
2840 | if ((eh->tls_mask & TLS_LD) != 0) | |
2841 | { | |
2842 | if (!eh->elf.def_dynamic) | |
2843 | /* We'll just use htab->tlsld_got.offset. This should | |
2844 | always be the case. It's a little odd if we have | |
2845 | a local dynamic reloc against a non-local symbol. */ | |
2846 | htab->tlsld_got.refcount += 1; | |
2847 | else | |
2848 | need += 8; | |
2849 | } | |
2850 | if ((eh->tls_mask & TLS_GD) != 0) | |
2851 | need += 8; | |
2852 | } | |
69b06cc8 | 2853 | else |
07d6d2b8 AM |
2854 | { |
2855 | /* Regular (non-TLS) symbol */ | |
2856 | need += 4; | |
2857 | } | |
69b06cc8 | 2858 | if (need == 0) |
07d6d2b8 AM |
2859 | { |
2860 | h->got.offset = (bfd_vma) -1; | |
2861 | } | |
69b06cc8 | 2862 | else |
07d6d2b8 AM |
2863 | { |
2864 | s = htab->elf.sgot; | |
2865 | h->got.offset = s->size; | |
2866 | s->size += need; | |
2867 | htab->elf.srelgot->size += need * (sizeof (Elf32_External_Rela) / 4); | |
2868 | } | |
7ba29e2a NC |
2869 | } |
2870 | else | |
2871 | h->got.offset = (bfd_vma) -1; | |
2872 | ||
190eb1dd | 2873 | if (h->dyn_relocs == NULL) |
0a1b45a2 | 2874 | return true; |
7ba29e2a NC |
2875 | |
2876 | /* In the shared -Bsymbolic case, discard space allocated for | |
2877 | dynamic pc-relative relocs against symbols which turn out to be | |
2878 | defined in regular objects. For the normal shared case, discard | |
2879 | space for pc-relative relocs that have become local due to symbol | |
2880 | visibility changes. */ | |
2881 | ||
0e1862bb | 2882 | if (bfd_link_pic (info)) |
7ba29e2a NC |
2883 | { |
2884 | if (h->def_regular | |
2885 | && (h->forced_local | |
2886 | || info->symbolic)) | |
2887 | { | |
3bf083ed | 2888 | struct elf_dyn_relocs **pp; |
7ba29e2a | 2889 | |
190eb1dd | 2890 | for (pp = &h->dyn_relocs; (p = *pp) != NULL; ) |
7ba29e2a NC |
2891 | { |
2892 | p->count -= p->pc_count; | |
2893 | p->pc_count = 0; | |
2894 | if (p->count == 0) | |
2895 | *pp = p->next; | |
2896 | else | |
2897 | pp = &p->next; | |
2898 | } | |
2899 | } | |
112fef40 | 2900 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
190eb1dd | 2901 | h->dyn_relocs = NULL; |
7ba29e2a NC |
2902 | } |
2903 | else | |
2904 | { | |
2905 | /* For the non-shared case, discard space for relocs against | |
2906 | symbols which turn out to need copy relocs or are not | |
2907 | dynamic. */ | |
2908 | ||
2909 | if (!h->non_got_ref | |
2910 | && ((h->def_dynamic | |
2911 | && !h->def_regular) | |
2912 | || (htab->elf.dynamic_sections_created | |
2913 | && (h->root.type == bfd_link_hash_undefweak | |
2914 | || h->root.type == bfd_link_hash_undefined)))) | |
2915 | { | |
2916 | /* Make sure this symbol is output as a dynamic symbol. | |
2917 | Undefined weak syms won't yet be marked as dynamic. */ | |
2918 | if (h->dynindx == -1 | |
2919 | && !h->forced_local) | |
2920 | { | |
2921 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
0a1b45a2 | 2922 | return false; |
7ba29e2a NC |
2923 | } |
2924 | ||
2925 | /* If that succeeded, we know we'll be keeping all the | |
2926 | relocs. */ | |
2927 | if (h->dynindx != -1) | |
2928 | goto keep; | |
2929 | } | |
2930 | ||
190eb1dd | 2931 | h->dyn_relocs = NULL; |
7ba29e2a NC |
2932 | |
2933 | keep: ; | |
2934 | } | |
2935 | ||
2936 | /* Finally, allocate space. */ | |
190eb1dd | 2937 | for (p = h->dyn_relocs; p != NULL; p = p->next) |
7ba29e2a NC |
2938 | { |
2939 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2940 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
2941 | } | |
2942 | ||
0a1b45a2 | 2943 | return true; |
7ba29e2a NC |
2944 | } |
2945 | ||
2946 | /* Set the sizes of the dynamic sections. */ | |
2947 | ||
0a1b45a2 | 2948 | static bool |
7ba29e2a NC |
2949 | microblaze_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2950 | struct bfd_link_info *info) | |
2951 | { | |
2952 | struct elf32_mb_link_hash_table *htab; | |
2953 | bfd *dynobj; | |
2954 | asection *s; | |
2955 | bfd *ibfd; | |
2956 | ||
2957 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 | 2958 | if (htab == NULL) |
0a1b45a2 | 2959 | return false; |
4dfe6ac6 | 2960 | |
7ba29e2a NC |
2961 | dynobj = htab->elf.dynobj; |
2962 | BFD_ASSERT (dynobj != NULL); | |
2963 | ||
2964 | /* Set up .got offsets for local syms, and space for local dynamic | |
2965 | relocs. */ | |
c72f2fb2 | 2966 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
7ba29e2a NC |
2967 | { |
2968 | bfd_signed_vma *local_got; | |
2969 | bfd_signed_vma *end_local_got; | |
2970 | bfd_size_type locsymcount; | |
2971 | Elf_Internal_Shdr *symtab_hdr; | |
69b06cc8 | 2972 | unsigned char *lgot_masks; |
7ba29e2a NC |
2973 | asection *srel; |
2974 | ||
2975 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
07d6d2b8 | 2976 | continue; |
7ba29e2a NC |
2977 | |
2978 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2979 | { | |
3bf083ed | 2980 | struct elf_dyn_relocs *p; |
7ba29e2a | 2981 | |
3bf083ed | 2982 | for (p = ((struct elf_dyn_relocs *) |
7ba29e2a NC |
2983 | elf_section_data (s)->local_dynrel); |
2984 | p != NULL; | |
2985 | p = p->next) | |
2986 | { | |
2987 | if (!bfd_is_abs_section (p->sec) | |
2988 | && bfd_is_abs_section (p->sec->output_section)) | |
2989 | { | |
2990 | /* Input section has been discarded, either because | |
2991 | it is a copy of a linkonce section or due to | |
2992 | linker script /DISCARD/, so we'll be discarding | |
2993 | the relocs too. */ | |
2994 | } | |
2995 | else if (p->count != 0) | |
2996 | { | |
2997 | srel = elf_section_data (p->sec)->sreloc; | |
2998 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2999 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
3000 | info->flags |= DF_TEXTREL; | |
3001 | } | |
3002 | } | |
3003 | } | |
3004 | ||
3005 | local_got = elf_local_got_refcounts (ibfd); | |
3006 | if (!local_got) | |
07d6d2b8 | 3007 | continue; |
7ba29e2a NC |
3008 | |
3009 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
3010 | locsymcount = symtab_hdr->sh_info; | |
3011 | end_local_got = local_got + locsymcount; | |
69b06cc8 | 3012 | lgot_masks = (unsigned char *) end_local_got; |
ce558b89 AM |
3013 | s = htab->elf.sgot; |
3014 | srel = htab->elf.srelgot; | |
7ba29e2a | 3015 | |
69b06cc8 ME |
3016 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
3017 | { | |
3018 | if (*local_got > 0) | |
3019 | { | |
3020 | unsigned int need = 0; | |
3021 | if ((*lgot_masks & TLS_TLS) != 0) | |
3022 | { | |
3023 | if ((*lgot_masks & TLS_GD) != 0) | |
3024 | need += 8; | |
3025 | if ((*lgot_masks & TLS_LD) != 0) | |
3026 | htab->tlsld_got.refcount += 1; | |
3027 | } | |
3028 | else | |
3029 | need += 4; | |
3030 | ||
3031 | if (need == 0) | |
3032 | { | |
3033 | *local_got = (bfd_vma) -1; | |
3034 | } | |
3035 | else | |
3036 | { | |
3037 | *local_got = s->size; | |
3038 | s->size += need; | |
0e1862bb | 3039 | if (bfd_link_pic (info)) |
69b06cc8 ME |
3040 | srel->size += need * (sizeof (Elf32_External_Rela) / 4); |
3041 | } | |
07d6d2b8 AM |
3042 | } |
3043 | else | |
3044 | *local_got = (bfd_vma) -1; | |
3045 | } | |
7ba29e2a NC |
3046 | } |
3047 | ||
3048 | /* Allocate global sym .plt and .got entries, and space for global | |
3049 | sym dynamic relocs. */ | |
3050 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
3051 | ||
69b06cc8 ME |
3052 | if (htab->tlsld_got.refcount > 0) |
3053 | { | |
ce558b89 AM |
3054 | htab->tlsld_got.offset = htab->elf.sgot->size; |
3055 | htab->elf.sgot->size += 8; | |
0e1862bb | 3056 | if (bfd_link_pic (info)) |
07d6d2b8 | 3057 | htab->elf.srelgot->size += sizeof (Elf32_External_Rela); |
69b06cc8 ME |
3058 | } |
3059 | else | |
3060 | htab->tlsld_got.offset = (bfd_vma) -1; | |
3061 | ||
7ba29e2a NC |
3062 | if (elf_hash_table (info)->dynamic_sections_created) |
3063 | { | |
3064 | /* Make space for the trailing nop in .plt. */ | |
ce558b89 | 3065 | if (htab->elf.splt->size > 0) |
07d6d2b8 | 3066 | htab->elf.splt->size += 4; |
7ba29e2a NC |
3067 | } |
3068 | ||
3069 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
3070 | determined the sizes of the various dynamic sections. Allocate | |
3071 | memory for them. */ | |
3072 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3073 | { | |
3074 | const char *name; | |
0a1b45a2 | 3075 | bool strip = false; |
7ba29e2a NC |
3076 | |
3077 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 3078 | continue; |
7ba29e2a NC |
3079 | |
3080 | /* It's OK to base decisions on the section name, because none | |
07d6d2b8 | 3081 | of the dynobj section names depend upon the input files. */ |
fd361982 | 3082 | name = bfd_section_name (s); |
7ba29e2a | 3083 | |
3f3328b8 | 3084 | if (startswith (name, ".rela")) |
07d6d2b8 AM |
3085 | { |
3086 | if (s->size == 0) | |
3087 | { | |
3088 | /* If we don't need this section, strip it from the | |
3089 | output file. This is to handle .rela.bss and | |
3090 | .rela.plt. We must create it in | |
3091 | create_dynamic_sections, because it must be created | |
3092 | before the linker maps input sections to output | |
3093 | sections. The linker does that before | |
3094 | adjust_dynamic_symbol is called, and it is that | |
3095 | function which decides whether anything needs to go | |
3096 | into these sections. */ | |
0a1b45a2 | 3097 | strip = true; |
07d6d2b8 AM |
3098 | } |
3099 | else | |
3100 | { | |
3101 | /* We use the reloc_count field as a counter if we need | |
3102 | to copy relocs into the output file. */ | |
3103 | s->reloc_count = 0; | |
3104 | } | |
3105 | } | |
ce558b89 AM |
3106 | else if (s != htab->elf.splt |
3107 | && s != htab->elf.sgot | |
5474d94f AM |
3108 | && s != htab->elf.sgotplt |
3109 | && s != htab->elf.sdynbss | |
3110 | && s != htab->elf.sdynrelro) | |
07d6d2b8 AM |
3111 | { |
3112 | /* It's not one of our sections, so don't allocate space. */ | |
3113 | continue; | |
3114 | } | |
7ba29e2a NC |
3115 | |
3116 | if (strip) | |
07d6d2b8 AM |
3117 | { |
3118 | s->flags |= SEC_EXCLUDE; | |
3119 | continue; | |
3120 | } | |
7ba29e2a NC |
3121 | |
3122 | /* Allocate memory for the section contents. */ | |
3123 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. | |
07d6d2b8 AM |
3124 | Unused entries should be reclaimed before the section's contents |
3125 | are written out, but at the moment this does not happen. Thus in | |
3126 | order to prevent writing out garbage, we initialise the section's | |
3127 | contents to zero. */ | |
7ba29e2a NC |
3128 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
3129 | if (s->contents == NULL && s->size != 0) | |
0a1b45a2 | 3130 | return false; |
7ba29e2a NC |
3131 | } |
3132 | ||
3084d7a2 L |
3133 | /* ??? Force DF_BIND_NOW? */ |
3134 | info->flags |= DF_BIND_NOW; | |
0a1b45a2 | 3135 | return _bfd_elf_add_dynamic_tags (output_bfd, info, true); |
7ba29e2a NC |
3136 | } |
3137 | ||
3138 | /* Finish up dynamic symbol handling. We set the contents of various | |
3139 | dynamic sections here. */ | |
3140 | ||
0a1b45a2 | 3141 | static bool |
7ba29e2a NC |
3142 | microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, |
3143 | struct bfd_link_info *info, | |
3144 | struct elf_link_hash_entry *h, | |
3145 | Elf_Internal_Sym *sym) | |
3146 | { | |
7ba29e2a | 3147 | struct elf32_mb_link_hash_table *htab; |
69b06cc8 | 3148 | struct elf32_mb_link_hash_entry *eh = elf32_mb_hash_entry(h); |
7ba29e2a NC |
3149 | |
3150 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 | 3151 | if (htab == NULL) |
0a1b45a2 | 3152 | return false; |
4dfe6ac6 | 3153 | |
7ba29e2a NC |
3154 | if (h->plt.offset != (bfd_vma) -1) |
3155 | { | |
3156 | asection *splt; | |
3157 | asection *srela; | |
3158 | asection *sgotplt; | |
3159 | Elf_Internal_Rela rela; | |
3160 | bfd_byte *loc; | |
3161 | bfd_vma plt_index; | |
3162 | bfd_vma got_offset; | |
3163 | bfd_vma got_addr; | |
3164 | ||
3165 | /* This symbol has an entry in the procedure linkage table. Set | |
07d6d2b8 | 3166 | it up. */ |
7ba29e2a NC |
3167 | BFD_ASSERT (h->dynindx != -1); |
3168 | ||
ce558b89 AM |
3169 | splt = htab->elf.splt; |
3170 | srela = htab->elf.srelplt; | |
3171 | sgotplt = htab->elf.sgotplt; | |
7ba29e2a NC |
3172 | BFD_ASSERT (splt != NULL && srela != NULL && sgotplt != NULL); |
3173 | ||
3174 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; /* first entry reserved. */ | |
3175 | got_offset = (plt_index + 3) * 4; /* 3 reserved ??? */ | |
3176 | got_addr = got_offset; | |
3177 | ||
3178 | /* For non-PIC objects we need absolute address of the GOT entry. */ | |
0e1862bb | 3179 | if (!bfd_link_pic (info)) |
07d6d2b8 | 3180 | got_addr += sgotplt->output_section->vma + sgotplt->output_offset; |
7ba29e2a NC |
3181 | |
3182 | /* Fill in the entry in the procedure linkage table. */ | |
3183 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_0 + ((got_addr >> 16) & 0xffff), | |
07d6d2b8 | 3184 | splt->contents + h->plt.offset); |
0e1862bb | 3185 | if (bfd_link_pic (info)) |
07d6d2b8 AM |
3186 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1 + (got_addr & 0xffff), |
3187 | splt->contents + h->plt.offset + 4); | |
7ba29e2a | 3188 | else |
07d6d2b8 AM |
3189 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1_NOPIC + (got_addr & 0xffff), |
3190 | splt->contents + h->plt.offset + 4); | |
7ba29e2a | 3191 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_2, |
07d6d2b8 | 3192 | splt->contents + h->plt.offset + 8); |
7ba29e2a | 3193 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_3, |
07d6d2b8 | 3194 | splt->contents + h->plt.offset + 12); |
7ba29e2a NC |
3195 | |
3196 | /* Any additions to the .got section??? */ | |
3197 | /* bfd_put_32 (output_bfd, | |
3198 | splt->output_section->vma + splt->output_offset + h->plt.offset + 4, | |
3199 | sgotplt->contents + got_offset); */ | |
3200 | ||
3201 | /* Fill in the entry in the .rela.plt section. */ | |
3202 | rela.r_offset = (sgotplt->output_section->vma | |
07d6d2b8 AM |
3203 | + sgotplt->output_offset |
3204 | + got_offset); | |
7ba29e2a NC |
3205 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_JUMP_SLOT); |
3206 | rela.r_addend = 0; | |
3207 | loc = srela->contents; | |
3208 | loc += plt_index * sizeof (Elf32_External_Rela); | |
3209 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
3210 | ||
3211 | if (!h->def_regular) | |
07d6d2b8 AM |
3212 | { |
3213 | /* Mark the symbol as undefined, rather than as defined in | |
3214 | the .plt section. Zero the value. */ | |
3215 | sym->st_shndx = SHN_UNDEF; | |
3216 | sym->st_value = 0; | |
3217 | } | |
7ba29e2a NC |
3218 | } |
3219 | ||
69b06cc8 ME |
3220 | /* h->got.refcount to be checked ? */ |
3221 | if (h->got.offset != (bfd_vma) -1 && | |
3222 | ! ((h->got.offset & 1) || | |
07d6d2b8 | 3223 | IS_TLS_LD(eh->tls_mask) || IS_TLS_GD(eh->tls_mask))) |
7ba29e2a NC |
3224 | { |
3225 | asection *sgot; | |
3226 | asection *srela; | |
69b06cc8 | 3227 | bfd_vma offset; |
7ba29e2a NC |
3228 | |
3229 | /* This symbol has an entry in the global offset table. Set it | |
07d6d2b8 | 3230 | up. */ |
7ba29e2a | 3231 | |
ce558b89 AM |
3232 | sgot = htab->elf.sgot; |
3233 | srela = htab->elf.srelgot; | |
7ba29e2a NC |
3234 | BFD_ASSERT (sgot != NULL && srela != NULL); |
3235 | ||
69b06cc8 | 3236 | offset = (sgot->output_section->vma + sgot->output_offset |
47993b4a | 3237 | + (h->got.offset &~ (bfd_vma) 1)); |
7ba29e2a NC |
3238 | |
3239 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
3240 | locally, we just want to emit a RELATIVE reloc. Likewise if |
3241 | the symbol was forced to be local because of a version file. | |
3242 | The entry in the global offset table will already have been | |
3243 | initialized in the relocate_section function. */ | |
0e1862bb | 3244 | if (bfd_link_pic (info) |
07d6d2b8 | 3245 | && ((info->symbolic && h->def_regular) |
47993b4a | 3246 | || h->dynindx == -1)) |
07d6d2b8 AM |
3247 | { |
3248 | asection *sec = h->root.u.def.section; | |
bd757ca7 NC |
3249 | bfd_vma value; |
3250 | ||
3251 | value = h->root.u.def.value; | |
3252 | if (sec->output_section != NULL) | |
3253 | /* PR 21180: If the output section is NULL, then the symbol is no | |
3254 | longer needed, and in theory the GOT entry is redundant. But | |
3255 | it is too late to change our minds now... */ | |
3256 | value += sec->output_section->vma + sec->output_offset; | |
3257 | ||
07d6d2b8 AM |
3258 | microblaze_elf_output_dynamic_relocation (output_bfd, |
3259 | srela, srela->reloc_count++, | |
3260 | /* symindex= */ 0, | |
3261 | R_MICROBLAZE_REL, offset, | |
3262 | value); | |
3263 | } | |
7ba29e2a | 3264 | else |
07d6d2b8 AM |
3265 | { |
3266 | microblaze_elf_output_dynamic_relocation (output_bfd, | |
3267 | srela, srela->reloc_count++, | |
3268 | h->dynindx, | |
3269 | R_MICROBLAZE_GLOB_DAT, | |
3270 | offset, 0); | |
3271 | } | |
7ba29e2a NC |
3272 | |
3273 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
07d6d2b8 | 3274 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); |
7ba29e2a NC |
3275 | } |
3276 | ||
3277 | if (h->needs_copy) | |
3278 | { | |
3279 | asection *s; | |
3280 | Elf_Internal_Rela rela; | |
3281 | bfd_byte *loc; | |
3282 | ||
3283 | /* This symbols needs a copy reloc. Set it up. */ | |
3284 | ||
3285 | BFD_ASSERT (h->dynindx != -1); | |
3286 | ||
7ba29e2a | 3287 | rela.r_offset = (h->root.u.def.value |
07d6d2b8 AM |
3288 | + h->root.u.def.section->output_section->vma |
3289 | + h->root.u.def.section->output_offset); | |
7ba29e2a NC |
3290 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_COPY); |
3291 | rela.r_addend = 0; | |
afbf7e8e | 3292 | if (h->root.u.def.section == htab->elf.sdynrelro) |
5474d94f AM |
3293 | s = htab->elf.sreldynrelro; |
3294 | else | |
3295 | s = htab->elf.srelbss; | |
7ba29e2a NC |
3296 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3297 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
3298 | } | |
3299 | ||
3300 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef L |
3301 | if (h == htab->elf.hdynamic |
3302 | || h == htab->elf.hgot | |
3303 | || h == htab->elf.hplt) | |
7ba29e2a NC |
3304 | sym->st_shndx = SHN_ABS; |
3305 | ||
0a1b45a2 | 3306 | return true; |
7ba29e2a NC |
3307 | } |
3308 | ||
3309 | ||
3310 | /* Finish up the dynamic sections. */ | |
3311 | ||
0a1b45a2 | 3312 | static bool |
7ba29e2a NC |
3313 | microblaze_elf_finish_dynamic_sections (bfd *output_bfd, |
3314 | struct bfd_link_info *info) | |
3315 | { | |
3316 | bfd *dynobj; | |
3317 | asection *sdyn, *sgot; | |
3318 | struct elf32_mb_link_hash_table *htab; | |
3319 | ||
3320 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 | 3321 | if (htab == NULL) |
0a1b45a2 | 3322 | return false; |
4dfe6ac6 | 3323 | |
7ba29e2a NC |
3324 | dynobj = htab->elf.dynobj; |
3325 | ||
3d4d4302 | 3326 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
7ba29e2a NC |
3327 | |
3328 | if (htab->elf.dynamic_sections_created) | |
3329 | { | |
3330 | asection *splt; | |
3331 | Elf32_External_Dyn *dyncon, *dynconend; | |
3332 | ||
7ba29e2a NC |
3333 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
3334 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
3335 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
3336 | { |
3337 | Elf_Internal_Dyn dyn; | |
64f52338 | 3338 | asection *s; |
0a1b45a2 | 3339 | bool size; |
7ba29e2a | 3340 | |
07d6d2b8 | 3341 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
7ba29e2a | 3342 | |
07d6d2b8 AM |
3343 | switch (dyn.d_tag) |
3344 | { | |
64f52338 AM |
3345 | case DT_PLTGOT: |
3346 | s = htab->elf.sgotplt; | |
0a1b45a2 | 3347 | size = false; |
64f52338 | 3348 | break; |
7ba29e2a | 3349 | |
64f52338 AM |
3350 | case DT_PLTRELSZ: |
3351 | s = htab->elf.srelplt; | |
0a1b45a2 | 3352 | size = true; |
64f52338 | 3353 | break; |
7ba29e2a | 3354 | |
64f52338 AM |
3355 | case DT_JMPREL: |
3356 | s = htab->elf.srelplt; | |
0a1b45a2 | 3357 | size = false; |
64f52338 AM |
3358 | break; |
3359 | ||
3360 | default: | |
3361 | continue; | |
07d6d2b8 | 3362 | } |
64f52338 AM |
3363 | |
3364 | if (s == NULL) | |
3365 | dyn.d_un.d_val = 0; | |
3366 | else | |
3367 | { | |
3368 | if (!size) | |
3369 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3370 | else | |
3371 | dyn.d_un.d_val = s->size; | |
3372 | } | |
3373 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
07d6d2b8 | 3374 | } |
7ba29e2a | 3375 | |
64f52338 AM |
3376 | splt = htab->elf.splt; |
3377 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
3378 | ||
7ba29e2a NC |
3379 | /* Clear the first entry in the procedure linkage table, |
3380 | and put a nop in the last four bytes. */ | |
3381 | if (splt->size > 0) | |
07d6d2b8 AM |
3382 | { |
3383 | memset (splt->contents, 0, PLT_ENTRY_SIZE); | |
3384 | bfd_put_32 (output_bfd, (bfd_vma) 0x80000000 /* nop. */, | |
3385 | splt->contents + splt->size - 4); | |
7ba29e2a | 3386 | |
94667ab1 AM |
3387 | if (splt->output_section != bfd_abs_section_ptr) |
3388 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
3389 | } | |
7ba29e2a NC |
3390 | } |
3391 | ||
3392 | /* Set the first entry in the global offset table to the address of | |
3393 | the dynamic section. */ | |
ce558b89 | 3394 | sgot = htab->elf.sgotplt; |
7ba29e2a NC |
3395 | if (sgot && sgot->size > 0) |
3396 | { | |
3397 | if (sdyn == NULL) | |
07d6d2b8 | 3398 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
7ba29e2a | 3399 | else |
07d6d2b8 AM |
3400 | bfd_put_32 (output_bfd, |
3401 | sdyn->output_section->vma + sdyn->output_offset, | |
3402 | sgot->contents); | |
7ba29e2a NC |
3403 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
3404 | } | |
3405 | ||
ce558b89 AM |
3406 | if (htab->elf.sgot && htab->elf.sgot->size > 0) |
3407 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4; | |
7ba29e2a | 3408 | |
0a1b45a2 | 3409 | return true; |
7ba29e2a NC |
3410 | } |
3411 | ||
3412 | /* Hook called by the linker routine which adds symbols from an object | |
3413 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
3414 | ||
0a1b45a2 | 3415 | static bool |
7ba29e2a | 3416 | microblaze_elf_add_symbol_hook (bfd *abfd, |
07d6d2b8 AM |
3417 | struct bfd_link_info *info, |
3418 | Elf_Internal_Sym *sym, | |
3419 | const char **namep ATTRIBUTE_UNUSED, | |
3420 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3421 | asection **secp, | |
3422 | bfd_vma *valp) | |
7ba29e2a NC |
3423 | { |
3424 | if (sym->st_shndx == SHN_COMMON | |
0e1862bb | 3425 | && !bfd_link_relocatable (info) |
7ba29e2a NC |
3426 | && sym->st_size <= elf_gp_size (abfd)) |
3427 | { | |
3428 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3429 | put into .sbss. */ | |
3d4d4302 | 3430 | *secp = bfd_make_section_old_way (abfd, ".sbss"); |
7ba29e2a | 3431 | if (*secp == NULL |
10885e24 | 3432 | || !bfd_set_section_flags (*secp, SEC_IS_COMMON | SEC_SMALL_DATA)) |
0a1b45a2 | 3433 | return false; |
7ba29e2a NC |
3434 | |
3435 | *valp = sym->st_size; | |
3436 | } | |
3437 | ||
0a1b45a2 | 3438 | return true; |
7ba29e2a NC |
3439 | } |
3440 | ||
6d00b590 | 3441 | #define TARGET_LITTLE_SYM microblaze_elf32_le_vec |
f23200ad | 3442 | #define TARGET_LITTLE_NAME "elf32-microblazeel" |
7ba29e2a | 3443 | |
07d6d2b8 | 3444 | #define TARGET_BIG_SYM microblaze_elf32_vec |
7ba29e2a NC |
3445 | #define TARGET_BIG_NAME "elf32-microblaze" |
3446 | ||
3447 | #define ELF_ARCH bfd_arch_microblaze | |
ae95ffa6 | 3448 | #define ELF_TARGET_ID MICROBLAZE_ELF_DATA |
7ba29e2a NC |
3449 | #define ELF_MACHINE_CODE EM_MICROBLAZE |
3450 | #define ELF_MACHINE_ALT1 EM_MICROBLAZE_OLD | |
69b06cc8 | 3451 | #define ELF_MAXPAGESIZE 0x1000 |
7ba29e2a NC |
3452 | #define elf_info_to_howto microblaze_elf_info_to_howto |
3453 | #define elf_info_to_howto_rel NULL | |
3454 | ||
3455 | #define bfd_elf32_bfd_reloc_type_lookup microblaze_elf_reloc_type_lookup | |
07d6d2b8 | 3456 | #define bfd_elf32_bfd_is_local_label_name microblaze_elf_is_local_label_name |
9751574e | 3457 | #define bfd_elf32_new_section_hook microblaze_elf_new_section_hook |
7ba29e2a | 3458 | #define elf_backend_relocate_section microblaze_elf_relocate_section |
07d6d2b8 AM |
3459 | #define bfd_elf32_bfd_relax_section microblaze_elf_relax_section |
3460 | #define bfd_elf32_bfd_merge_private_bfd_data _bfd_generic_verify_endian_match | |
7ba29e2a NC |
3461 | #define bfd_elf32_bfd_reloc_name_lookup microblaze_elf_reloc_name_lookup |
3462 | ||
3463 | #define elf_backend_gc_mark_hook microblaze_elf_gc_mark_hook | |
07d6d2b8 AM |
3464 | #define elf_backend_check_relocs microblaze_elf_check_relocs |
3465 | #define elf_backend_copy_indirect_symbol microblaze_elf_copy_indirect_symbol | |
3466 | #define bfd_elf32_bfd_link_hash_table_create microblaze_elf_link_hash_table_create | |
7ba29e2a | 3467 | #define elf_backend_can_gc_sections 1 |
07d6d2b8 AM |
3468 | #define elf_backend_can_refcount 1 |
3469 | #define elf_backend_want_got_plt 1 | |
3470 | #define elf_backend_plt_readonly 1 | |
3471 | #define elf_backend_got_header_size 12 | |
5474d94f | 3472 | #define elf_backend_want_dynrelro 1 |
07d6d2b8 | 3473 | #define elf_backend_rela_normal 1 |
64f52338 | 3474 | #define elf_backend_dtrel_excludes_plt 1 |
7ba29e2a | 3475 | |
07d6d2b8 AM |
3476 | #define elf_backend_adjust_dynamic_symbol microblaze_elf_adjust_dynamic_symbol |
3477 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections | |
3478 | #define elf_backend_finish_dynamic_sections microblaze_elf_finish_dynamic_sections | |
3479 | #define elf_backend_finish_dynamic_symbol microblaze_elf_finish_dynamic_symbol | |
3480 | #define elf_backend_size_dynamic_sections microblaze_elf_size_dynamic_sections | |
7ba29e2a NC |
3481 | #define elf_backend_add_symbol_hook microblaze_elf_add_symbol_hook |
3482 | ||
3483 | #include "elf32-target.h" |